JP2019098457A - Cutting tool and blade part holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting tool capable of smoothly automatically discharging or spontaneously discharging a facet at the time of cutting. A cutting tool that performs cutting while relatively feeding in a predetermined direction with respect to an external work that is pivotally supported and relatively rotated, the cutting blade portion including a cutting edge, and the cutting blade. A base 20 having a blade seat 22 provided separately from the portion 10 and provided at the tip of the shank 21 and a detachable attachment to the base 20 by a screw 40. The cutting blade 10 is The base part 20 and the blade 20 are housed in the blade seat 22 and held in a state where the blade edge 10A is exposed, and the base 20 and the blade start from the vicinity of the blade edge 10A and extend in a direction away from the blade edge 10A. It has a face guide wall 25 that is formed over the outer peripheral surface of the part holding body 30 and interferes with the face of the external work to guide the face in the direction away from the blade edge 10A. [Selection] Figure 1

Description

  The present invention relates to a cutting tool and a blade holder used for cutting a workpiece.

  Conventionally, a so-called cutting tool is used as a cutting tool for cutting a workpiece. The cutting tool performs cutting while relatively feeding the external workpiece rotating in a predetermined direction. Further, the cutting tool has a cutting tip and a tip holder separately, and there is a so-called indexable cutting tool which can replace the cutting tip, a complete cutting bit and a cutting bit, etc. in which the holder and the tip are integrated.

  In particular, in the case of mass production using an NC lathe, a throwaway bit whose tip can be replaced is used (see, for example, Patent Document 1).

  FIG. 19A shows an example of a throwaway tool. The indexable cutting tool comprises indexable insert 1130 and holder 1120. The indexable tip 1130 is screwed to the tip holder 1120 and is disposable without regrinding when the cutting edge is worn or broken. When fixing to a dedicated holder 1120, there is no need to adjust the core height again, so that it is easy and efficient to replace, especially when mass-producing it with an NC lathe or the like.

  FIG. 19B is a perspective view of the throw away tip 1130 alone. The thickness B of the chip is usually 1 cm or less, and it is attached with the cutting edge protruding from the outer periphery of the chip holder 1120.

JP-A-8-257837

The conventional cutting tool forms a groove or the like on the rake face 1130H of the chip 1130, and bi-directionally bends the cut produced by cutting to finely divide the cut. This groove is called a so-called chip breaker, but the cut pieces finely divided by this chip break are scattered in various directions, and in the case of internal diameter processing or internal thread processing, the fine cut is clogged inside the processing hole There was a problem.
In particular, in the case of small diameter internal diameter processing etc., the cutter remains in the work without being discharged properly, and the cutter truncates to the blade portion or the tip of the cutting tool, so that the cutting edge is missing or the tip is broken. I had to do it. In addition, a cutter staying in the work may damage the work.

  Moreover, in order to perform cutting with higher accuracy, it is necessary to have a cutting tip and a tip holder (tool holder) or the like with less chatter and the like than ever before.

  An object of the present invention is to provide a cutting tool and a blade holder capable of automatically and automatically discharging a cutter smoothly at the time of cutting.

  Other objects of the present invention and specific advantages obtained by the present invention will become more apparent from the description of the embodiments described below.

  The present invention for solving the above-mentioned problems is a cutting tool which performs cutting while relatively feeding in a predetermined direction to an external work which is relatively rotated by a cutting blade having a cutting edge provided integrally or separately. Starting from the vicinity of the cutting edge and a base provided at the tip of the shank and the blade holder detachably attached to the base and disposed near the cutting blade, the base of the shank It is formed on the outer peripheral surface of the base and / or the blade holder so as to extend toward the end side, and interferes with the outer surface of the outer work cut by the cutting edge to cut the outer surface of the shank. And a facet guiding wall for guiding in a direction toward the side.

  In the cutting tool according to the present invention, the cutter guide wall may be a blade holder side guide wall formed on the outer peripheral surface of the blade holder around the cutting edge of the cutting blade, and the blade holder. It has a base side guide wall formed in the base so as to be continuous with the body side guide wall, and at least a part of the wall on the end side of the blade holder side guide wall is the shank tip of the blade tip with reference to the blade tip The surface disposed on the side and facing the cutting edge may function as a discharge direction control surface.

  In the cutting tool according to the present invention, the cutting blade is a separate body from the blade holder and the base, and the cutting is performed on at least one of the blade holder or the base. A blade seat for positioning and housing the blade may be provided.

  Further, in the cutting tool according to the present invention, the blade portion seat has a side wall surface for positioning the cutting blade portion, and the cutting blade portion is pressed against the side wall surface and configured to be positionable. It can be

  Further, in the cutting tool according to the present invention, a dowel inserted into a fixing hole provided in the cutting blade is erected in the blade holding body and / or the base, The cutting edge portion may be configured to be guided and pressed against the side wall surface by the inclined guiding surface of the dowel and positioned for positioning. .

  Further, in the cutting tool according to the present invention, the blade holding body and / or the base may be provided with a discharge port for the coolant discharged toward the cutting edge of the cutting blade.

  Further, in the cutting tool according to the present invention, the blade holding member has a coolant flow passage communicating with the discharge port, and the cooling fluid flow passage is a groove formed in the blade holding member. It may consist of a silicone tube embedded inside.

  In the cutting tool according to the present invention, the whole or a part of the cutting blade may have a current passage for measuring the change of the member, and the blade holder and / or the base may be provided. An electric conduction path electrically connected to the electric conduction path on the cutting blade side may be formed.

  In the cutting tool according to the present invention, the cutting blade is a separate body from the blade holder and the base, and the blade holder and / or the base is the cutting blade. And the blade holder and / or the base, in a state in which the cutting blade is accommodated in the blade seat, an electrode of the current path on the cutting blade side. A current path having an electrode in contact with the light source can be formed.

  Further, in the cutting tool according to the present invention, the blade portion holder may be provided with an electronic circuit board as the current passage on the blade portion holder.

  Further, in the cutting tool according to the present invention, the electronic circuit board may be provided with a wireless communication unit electrically connected to the conduction path of the blade holder.

  Furthermore, in the cutting tool according to the present invention, the electronic circuit board may be provided with a feeding unit electrically connected to the conduction path of the blade holder together with the wireless communication unit. it can.

  The present invention is provided at the tip of a shank of a cutting tool that performs cutting while relatively feeding an external workpiece that rotates relative to a relatively rotating external workpiece by means of a cutting blade having a blade tip integrally or separately provided. A blade holder, which can be detachably attached to the base portion, and is disposed near the cutting blade, and is formed so as to start from the vicinity of the cutting edge and extend toward the proximal end of the shank A cutter guide wall is provided on an outer peripheral surface that interferes with a cutter of the outer workpiece cut by the cutting edge and guides the cutter in a direction toward the proximal end side of the shank.

  The blade portion holding body according to the present invention may be provided with a discharge port for the coolant which is discharged toward the cutting edge of the cutting blade portion.

  According to the present invention, it is possible to achieve an excellent effect that cutters at the time of cutting can be discharged automatically or spontaneously to the outside very smoothly.

It is a figure which shows the cutting tool which concerns on embodiment of this invention, FIG. 1 (A) is an external appearance perspective view of the cutting tool seen from the front diagonally upper side, FIG. 1 (B) is a cutting tool. It is an external appearance perspective view of the cutting tool seen from the side diagonally downward. FIG. 2A is an exploded perspective view of the cutting tool as viewed from the top of the tip side, and FIG. 2B is an exploded perspective view of the cutting tool as viewed from the bottom of the tip side. FIG. 3 is an external perspective view of the blade holder as viewed from the lower front side together with the cutting blade of the cutting tool. 4A is a cross-sectional view showing a YZ cross section of the cutting tool, and FIG. 4B is a perspective view showing a YZ cross section of the cutting tool. FIG. 5A is a perspective view showing the XY cross section of the cutting tool, and FIG. 5B is a plan view showing the XY cross section of the cutting tool. It is a figure which shows the modification of the cutting tool which uses a triangle positive tip with a hole as a cutting part, and FIG. 6 (A) is an external appearance perspective view of the cutting tool of the modification seen from the tip diagonally upper side FIG. 6 (B) is an exploded perspective view of a cutting tool according to a modification as viewed from the top of the tip side. FIG. 7A is an external perspective view of a cutting tool according to a modification as viewed from the rear upper side obliquely upward, and FIG. 7B is an exploded perspective view of the cutting tool according to the modification as viewed from the rear end side obliquely upward FIG. It is a figure which shows the modification of the cutting tool which uses a square positive chip with a hole as a cutting part, and FIG. 8 (A) is an external appearance perspective view of the cutting tool of the modification seen from the back end side diagonally upper FIG. 8 (B) is an exploded perspective view of the cutting tool of the modified example as viewed from the upper rear end side. FIG. 9A is an external perspective view of a cutting tool according to a modification as viewed from the top of the tip side, and FIG. 9B is an exploded perspective view of the cutting tool according to the modification as viewed from the top of the tip side is there. It is a figure which shows the modification of a cutting tool provided with the blade part seat which accommodates the cutting blade part in the front end surface of a base, and FIG. 10 (A) is an external appearance of the cutting tool of the modification It is a perspective view, FIG. 10 (B) is an exploded perspective view of the cutting tool of the modification seen from the tip side diagonally upward. FIG. 11A is an external perspective view of a cutting tool according to a modification as viewed from the rear upper side obliquely upward, and FIG. 11B is an exploded perspective of the cutting tool according to the modification as viewed from the rear end side obliquely upward FIG. FIG. 12A is a plan view of a tip with a sensor, and FIG. 12B is a side view of the tip with a sensor. FIG. 12A is a plan view of the tip with a sensor. is there. It is a figure which shows an example of a cutting tool provided with the chip | tip with a sensor as a cutting blade part, FIG. 13 (A) showed typically the electrical pathway comprised between the chip | tip with a sensor and a blade part holding body FIG. 13 (B) is an exploded perspective view of the cutting tool schematically showing an electric path formed between the sensor tip and the blade seat. FIG. 14 is an external appearance perspective view of the blade portion holder schematically shown through the electronic circuit board to be incorporated. FIG. 15 is a schematic cross-sectional view of a blade holder that incorporates an electronic circuit board and a battery. It is a figure which shows an example of the cutting tool provided with the electronic circuit board incorporated in the shank, and FIG. 16 (A) is an electric structure comprised between the chip | tip with a sensor and an electronic circuit board via a blade part holding body. FIG. 16 (B) is an exploded perspective view of a cutting tool schematically showing a path, and FIG. 16 (B) is a cutting tool schematically showing an electric path directly formed between a chip with a sensor and an electronic circuit board It is a disassembled perspective view. FIG. 17 is a view showing the configuration of a cutting system constructed using a cutting tool provided with a tip with a sensor. Fig. 18 (A) is an exploded perspective view of a cutting tool including a blade holding member in which a cutting blade is integrated, and Fig. 18 (B) is a cutting tool including a base in which the cutting blade is integrated. FIG. FIG. 19 (A) is a conceptual view of a conventional screw cutting indexable tool, and FIG. 19 (B) is a perspective view of the conventional screw cutting indexable tip.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It is needless to say that the present invention is not limited to the following examples, and can be arbitrarily changed without departing from the scope of the present invention.

  FIG. 1 and FIG. 2 show a cutting tool 100 according to an embodiment of the present invention. The cutting tool 100 is a cutting tool that is attached to a cutting device (not shown) and performs cutting while being relatively fed to a relatively rotating external workpiece in a predetermined direction (the axial direction of the relative rotation direction). It becomes a cutting tool.

  FIG. 1A is an external perspective view of the cutting tool 100 as viewed from the top of the tip side, and FIG. 1B is an external perspective view of the cutting tool 100 as viewed from the bottom of the tip side. FIG. 2A is an exploded perspective view of the cutting tool 100 as viewed from the top of the tip side, and FIG. 2B is an exploded perspective view of the cutting tool 100 as viewed from the bottom side of the tip side.

  The cutting tool 100 is detachably attached to the base 20 having a cutting edge portion 10 having a cutting edge 10A, a blade portion seat 22 provided at the tip end portion of the shank 21 and the base portion 20 by a screw 40, and cutting And a blade holder 30 for holding the blade 10 in the blade seat 22 and holding the blade 10A exposed. In FIG. 1, the left direction is the front end side (front), and the right direction is the base end side (rear).

  The cutting blade portion 10 in the cutting tool 100 is a holed rhombic positive tip having a clamp hole 11 at the center, and a cutting edge 10A is formed at an acute angle corner of the rhombus, and the cutting tool 100 of this embodiment Is suitable for internal diameter processing of a workpiece, but the present invention is not limited thereto.

  The material of the cutting tip used as the cutting blade 10 is preferably, for example, a high hardness material such as a ceramic, a titanium-based material, a cemented carbide or the like, whereby the wear resistance may be improved. it can. As the ceramic having wear resistance, aluminum oxide and silicon carbide having high hardness and high melting point, silicon nitride and zirconia having high toughness, and the like are preferable. In addition, if alumina having insulating properties is selected, it is possible to directly pattern a conductive pattern such as a conductive path, which is preferable. The shape of the cutting blade 10 may be a chip having a shape such as a parallelogram, a circle, a square, a triangle, or a hexagon other than a rhombus.

  The base 20 at the tip of the shank 21 of the cutting tool 100 abuts on the mounting surface 22A on which the cutting blade 10 is placed and two side surfaces of the cutting blade 10 opposite to the cutting edge 10A. A blade seat 22 having side wall surfaces 22B, 22C is provided.

  Here, with the axial direction of the cutting tool 100 as X, the horizontal direction orthogonal to the axial direction X as Y, and the vertical direction as Z, the cutting edge 10A protrudes in the horizontal direction Y from the blade seat 22. The cutting blade 10 is accommodated, the cutting blade 10 is placed on the placement surface 22A of the blade seat 22, and the two side surfaces opposite to the cutting edge 10A are on the side wall surfaces 22B and 22C of the blade seat 22. By coming into contact, the mounting surface 22A and the side wall surfaces 22B and 22C of the blade seat 22 serve as a reference surface for controlling the position in the height direction of the cutting blade 10 to be accommodated, that is, the vertical direction Z. 22A functions, and the side wall surfaces 22B and 22C function as reference surfaces that perform position control in the axial direction X and the horizontal direction Y. The mounting surface 22A functions as a reference surface that performs position restriction in the vertical direction Z in this manner, and the side wall surfaces 22B and 22C that function as reference surfaces that perform position restriction in the axial direction X and the horizontal direction Y By providing, the attachment position of the cutting blade 10 can be defined with high accuracy. The cutting blade 10 can be accurately attached to a predetermined position, and as a result, the life of the cutting blade 10 can be extended.

  The blade holder 30 in the cutting tool 100 has a ceiling wall 30A that covers the upper surface side of the cutting blade 10 housed in the blade seat 22 of the base 20.

  Legs 31 and 32 having inner side walls 31A and 32A with which approximately half of two side surfaces on the blade edge 10A side of the cutting blade 10 abut the top wall 30A of the blade holder 30; A dowel 33 inserted into the clamp hole 11 of the portion 10, a leg portion 36 having an inner wall surface 36A abutted against the inclined outer wall surface 20A on the base 20 side and the like are erected downward in the vertical direction Z. Further, a screw insertion hole 34 for detachably attaching the blade holding body 30 to the base 20 by means of the screw 40 is formed in the top wall 30A. Furthermore, in the top wall portion 30A, a groove 35A for a coolant flow channel is formed, and a silicone tube 35 forming a coolant flow channel is embedded in the groove 35A for a coolant flow channel.

  Then, as shown in the external perspective view of FIG. 3 as viewed from the lower front side, the dowel 33 provided on the top wall 30A of the blade holder 30 is inserted into the clamp hole 11 of the cutting blade 10; Substantially half of the two side surfaces on the blade edge 10A side abuts on the inner side walls 31A, 32A of the leg portions 31, 32.

  As shown in the cross-sectional view of FIG. 4 (A) and the perspective view of FIG. 4 (B), the XY cross section of the cutting tool 100 is formed on the top wall 30A of the blade holder 30 on the base 20. A screw hole 23 is formed at a position corresponding to the screw insertion hole 34, and the blade holder 30 in the cutting tool 100 is the upper surface side of the cutting blade 10 housed in the blade seat 22 of the base 20. Covered by the top wall portion 30A, the cutting edge 10A of the cutting blade portion 10 protrudes in the horizontal direction Y, holds it in the exposed state, and is detachably attached to the base 20 by the screw 40 inserted into the screw insertion hole 34 It has become.

  Here, the dowel 33 erected on the top wall portion 30A of the blade portion holder 30 has an inclined guide surface 33A which is processed into a tapered shape in which the outer peripheral surface is eccentric in the horizontal direction Y.

The dowels 33 erected on the top wall 30A of the blade holder 30 have outer peripheral surfaces when inserted into the clamp holes 11 of the cutting blade 10 housed in the blade seat 22 of the base 20. When the inclined guide surface 33A is in sliding contact with the wall surface of the clamp hole 11, the cutting blade 10 is guided in the direction opposite to the cutting edge 10A in the horizontal direction, and the side wall surface of the cutting blade is a blade seat It functions as a position regulating member that presses against the side wall surfaces 22B and 22C of 22 and regulates the position. Further, the leg portion 36 erected on the top wall portion 30A of the blade portion holding body 30 is brought into contact with the blade portion holding body 30 by the contact of the inner wall surface 36A with the inclined outer wall surface 20A on the base 20 side. It functions as a guide member when attached to the base 20.
As a material of the blade portion holder 30, for example, a material with high hardness such as ceramic, titanium-based material, die steel, cemented carbide, etc. is desirable, whereby the wear resistance can be improved. As the ceramic having wear resistance, aluminum oxide and silicon carbide having high hardness and high melting point, silicon nitride and zirconia having high toughness, and the like are preferable. In addition, if alumina having insulating properties is selected, it is possible to directly pattern a conductive pattern such as a conductive path, which is preferable.

  In this cutting tool 100, the blade seat 22 is provided on the base 20 and the cutting blade 10 is positioned, but the blade seat 22 may be provided on the blade holder 30, or with the base 20 It may be provided over both of the blade holder 30. When the blade seat 22 is provided on the blade holder 30, the dowel 33 is provided on the base 20, the cutting blade 10 is guided by the inclined guide surface 33A of the dowel 33, and the side wall surface of the cutting blade 10 is The position is regulated by pressing the side wall surface of the blade portion seat provided on the blade portion holder. When the blade seat 22 is provided on both the blade holder 30 and the base 20, the dowel 33 is provided on either the blade holder 30 or the base 20, and the inclined guide surface 33A of the dowel 33 is used for cutting. The blade portion 10 is guided, and the side wall surface of the cutting blade portion 10 is pressed against the side wall surface of the blade portion holder provided on the blade portion holder and the base portion to restrict the position.

  Further, the cutting tool 100 is formed from the vicinity of the cutting edge 10A of the cutting blade portion 10 and extends over the outer peripheral surfaces of the base 20 and the blade holding member 30 so as to extend in the direction away from the cutting edge 10A. And a facet guide wall 25 which interferes with the facet of the external workpiece to guide the facet away from the cutting edge.

  The cutting guide wall 25 is provided around the cutting edge 10A of the outer peripheral wall of the blade holding member 30 so as to expose the cutting edge 10A projecting in the horizontal direction Y of the cutting blade 10 accommodated in the blade seat 22 of the base 20. A portion corresponding to the portion is concavely scraped to form a wall surface of the groove, and a guide surface formed substantially at right angles to the rake surface 10B of the cutting blade 10 and a curve continuous in the circumferential direction to the guide surface It consists of a blade holder side guide wall 25A having a guide surface and a base side guide wall 25B formed by scraping the outer peripheral wall of the base 20 and having a guide surface continuous with the blade holder side guide wall 25A. .

  The base-side guide wall 25B is branched on the way from the blade edge 10A to the rear in a direction away from the cutting edge 10A, and includes a base-side guide wall 25C formed to bend upward with respect to the cutting blade 10. By adjusting the phase when this base guide wall 25C is attached to the cutting device (not shown) of the base 20, the discharge of fine cuttings is achieved by its own weight, and a series of cuttings to fine cuttings are smoothly automated. It can be discharged or spontaneously discharged.

  The wall surface on the end side of the blade portion holder side guide wall 25A functions as a discharge direction control surface 25a.

  The discharge direction control surface 25a is formed in the vicinity of the blade edge 10A, is disposed on the shank tip side (forward) of the blade edge 10A with respect to the blade edge 10A, and faces the blade edge 10A.

  Since the discharge direction restricting surface 25a is a wall surface on the end side of the blade holder side guiding wall 25A, the discharge direction restricting surface 25a is continuous with the end of the blade holder side guiding wall 25A. Are in the blind alley state in the axial direction X (relative feed direction). As a result, even if the cutter produced from the cutting edge 10A tries to move to the front of the base 20, it can not advance by interfering with the discharge direction control surface 25a, and the discharge direction of the cutter is one It is limited to the direction (rear) and is automatically discharged or spontaneously discharged to the proximal side (back) along the facet guide wall 25 (25A, 25B).

That is, in the cutting tool 100, the blade holder 30 detachably attached to the base 20 having the blade seat 22 provided at the tip of the shank 21 by the screw 40 is formed separately. The tip holder is configured to accommodate the blade portion 10 in the blade seat 22 and hold the blade edge 10A exposed, starting from the vicinity of the blade edge 10A and moving backward from the blade edge 10, ie, the shank It interferes with the outer surface of the external work to guide it away from the cutting edge 10A, that is, in the direction toward the proximal side (rear) of the shank so as to extend in the direction toward the proximal side (rearward) Since the facet guide wall 25 is formed over the outer peripheral surface of the base 20 and the blade holding member 30, relative feeding in the predetermined direction (axial direction X) is carried out with respect to the external work which is pivotally supported and relatively rotated. When performing cutting while, by guiding multifaceted guide wall 25, the faceted during cutting can be automatically discharged or spontaneous emission extremely smooth outside.
As a result, even if the inner diameter is machined with a small diameter, the cutter is smoothly and automatically discharged or spontaneously discharged, so the cutter remains in the work, and the cutter entangles with the blade portion or cutting tool tip. There is no loss of parts or breakage of chips. In addition, since the cutter does not stay in the workpiece, the stagnant cutter does not damage the workpiece.

  Here, the cutter guide wall 25 is a blade holder side guiding wall 25A formed on the outer peripheral surface of the blade holder 30 so as to expose the cutting edge 10A of the cutting blade 10, and the blade holder side guiding wall The base side guiding wall 25B formed on the base 20 is provided so as to be continuous with 25A, and the end wall side of the blade holder side guiding wall 25A is made to function as the discharge direction regulating surface 25a. The wall surface on the end side of the side guide wall 25B may function as a discharge direction control surface. Alternatively, both the end wall of the blade holder side guide wall 25A and the end wall of the base guide wall 25B may function as a discharge direction control surface.

  That is, in the cutting tool 100, the cutter guide wall 25 is formed on the outer peripheral surface of the blade holder 30 so as to expose the cutting edge 10A of the cutting blade 10, and the blade guide wall 25A; It has a base side guide wall 25B formed in the base 20 so as to be continuous with the section holder side guide wall 25A, and the wall surface on the end side of the base side guide wall 25B is in the relative feed direction with reference to the blade edge 10A. By being disposed in the shank tip direction (forward) of the cutting edge 10A and formed to face the cutting edge 10A, it can function as a discharge direction control surface. The wall surface on the end side of the blade holder side guiding wall 25A and the wall surface on the end side of the base side guiding wall 25B are disposed in the shank tip direction (forward) of the blade edge 10A with reference to the blade edge 10A, By being formed so as to face the cutting edge 10A, it can function as a discharge direction control surface.

  In addition, the formation location of the cutting guide surface and the discharge direction control surface is not limited to the blade holder and the base, and may be formed on the cutting blade 10.

  Further, as shown in the XY cross-sectional views of FIGS. 5A and 5B, the coolant flow path formed in the top wall portion 30A of the blade portion holder 30 in the shank 21 of the cutting tool 100. A coolant flow channel communicating with a coolant flow channel formed by the silicone tube 35 embedded in the groove 35A is formed.

  The cooling fluid passage formed by the silicone tube 35 has its cooling fluid inlet butted against the cooling fluid outlet of the cooling fluid flow passage 21A on the side of the shank 21 to form an airtight state in which no fluid leakage occurs. Can be secured by the elasticity of Instead of the silicone tube 35, a flexible tube such as a rubber tube or a non-flexible tube (tube) can be used. Furthermore, as a flow path forming member for forming a flow path, its shape has a cross section It is not limited to a closed curved shape such as a circle, but may be, for example, a U-shaped cross section with a part open.

  In this cutting tool 100, the upper surface side of the cutting blade 10 accommodated in the blade seat 22 of the base 20 is covered by supplying the cooling fluid to the cooling fluid inlet of the cooling fluid channel 21A on the shank 21 side. It can discharge | release toward the blade edge | tip 10A to which the blade part 10 of the cutting blade part was made to be exposed from the discharge port of the cooling fluid provided in the top-wall part 30A in the blade part holding body 30. FIG.

  The discharge port of the cooling fluid discharged toward the cutting edge 10A of the cutting blade 10 may be provided in the blade holder 30 and / or the base 20.

  Although the embodiment of the cutting tool 100 using the holed rhombic positive tip as the cutting blade portion 10 has been described, next, as modified examples of the cutting tool 100, FIGS. 6 (A), (B), FIG. A cutting tool 200 using a perforated triangular positive tip will be described with reference to (A) and (B).

  FIG. 6A is an external perspective view of the cutting tool 200 as viewed from obliquely above the rear end side, and FIG. 6B is an exploded perspective view of the cutting tool 200 as viewed from obliquely above the rear end side. 7 (A) is a perspective view of the cutting tool 200 as viewed from the top of the tip side, and FIG. 7 (B) is an exploded perspective view of the cutting tool 200 as viewed from the top of the tip side.

  In addition, in this cutting tool 200, about the component which is the same as that of the cutting tool 100, or similar, the same code | symbol is attached | subjected, the detailed description is abbreviate | omitted, and a different component is demonstrated in detail.

  The cutting tool 200 includes a base portion 20 in which a blade portion seat 122 for accommodating a triangular positive chip with holes as a cutting blade portion 110 is provided at the tip portion of the shank 21.

  The blade part seat 122 of the base 20 has a setting surface 122A where a holed triangular positive tip is placed as a cutting blade part 110, and two position restrictions where two side faces of the cutting blade part 110 are abutted Dowels 123 inserted into the walls 122B and 122C and the clamp holes 111 of the cutting blade portion 110 are provided upright on the setting surface 122A.

  The blade holder 130 in the cutting tool 200 has a top wall 130 A covering the upper surface side of the cutting blade 110 housed in the blade seat 122 of the base 20, and the blade seat 122 of the base 20 The upper surface side of the accommodated cutting blade 110 is covered with the top wall 130A, and the cutting edge 110A of the cutting blade 110 protrudes in the horizontal direction Y, is held in the exposed state, and is inserted into the screw insertion hole 34 The screw 40 is detachably attached to the base 20.

  The dowel 123 erected on the setting surface 122A of the blade portion seat 122 has an inclined guide surface 123A which is processed into a tapered shape in which the outer peripheral surface is eccentric in the horizontal direction Y, and the cutting blade portion 110 When inserted into the clamp hole 111, the inclined guide surface 123A of the outer peripheral surface is in sliding contact with the wall surface of the clamp hole 111, so that the cutting blade portion 110 is in the opposite direction to the blade edge 110A in the flat direction. The guide functions as a position regulating member for guiding and pressing the two side surfaces of the cutting blade portion 110 against the two position regulating walls 122B and 122C erected on the setting surface 122A.

  Further, the cutting tool 200 is formed from the vicinity of the cutting edge 110A of the cutting blade 110 and extends in the direction away from the cutting edge 110A over the outer peripheral surface of the base 20 and the blade holder 130, It has a facet guiding wall 25 which guides the facet away from the cutting edge 110A by interfering with the facet of the external work.

  The cutting guide wall 25 is a periphery of the cutting edge 110A of the outer peripheral wall of the blade holder 30 so as to expose the cutting edge 110A projecting in the horizontal direction Y of the cutting blade 110 accommodated in the blade seat 122 of the base 20. A portion corresponding to the portion is concavely scraped to form a groove wall surface, and a guide surface formed substantially at right angles to the rake surface 110B of the cutting blade portion 110 and a curve continuous in the circumferential direction to the guide surface It consists of a blade holder side guide wall 25A having a guide surface and a base side guide wall 25B formed by scraping the outer peripheral wall of the base 20 and having a guide surface continuous with the blade holder side guide wall 25A. . Further, the cutting guide wall 25 has a discharge direction restricting surface 25 a formed across the base 20 and the blade holder 30.

  The base-side guide wall 25B is branched in the middle of extending in a direction away from the blade edge 10A, and includes a base-side guide wall 25C formed to be bent upward with respect to the cutting blade 10.

  The wall surface on the end side of the blade holder side guiding wall 25A is disposed on the forward side of the blade edge 10A in the relative feed direction with respect to the blade edge 10A, and the discharge direction facing the backward direction of the blade edge in the relative feed direction It functions as a control surface 25a.

  Next, as a modification of the cutting tool 200, referring to FIGS. 8A, 8B, 9A, and 9B, for cutting using a square positive chip with a hole as a cutting blade portion. The tool 300 will be described.

  FIG. 8A is an external perspective view of the cutting tool 300 of the modified example as viewed from the top of the tip side, and FIG. 8B is an exploded perspective view of the cutting tool 300 of the modified example as viewed from the top of the tip side FIG. FIG. 9A is an external perspective view of the cutting tool 300 of the modified example viewed from the rear upper end side obliquely upward, and FIG. 9B is a cutting tool of the modified example viewed from the rear end side obliquely upper side FIG.

  In the cutting tool 300, the same or similar components as or to the cutting tools 100 and 200 will be assigned the same reference numerals, and the detailed description thereof will be omitted, and different components will be described in detail.

  The cutting tool 300 includes a base 20 in which a blade seat 222 for accommodating a holed square positive tip as the cutting blade 210 is provided at the tip of the shank 21.

  The blade seat 222 of the base 20 has a setting surface 222A on which a triangular triangular positive chip with holes is placed as a cutting blade 210, and the dowel 223 inserted into the clamp hole 211 of the square positive plastic with holes. Are set up on the judgment surface 222A.

  The blade holder 230 in the cutting tool 300 has a ceiling wall 230A covering the upper surface side of the cutting blade 110 housed in the blade seat 222 of the base 20, and two orthogonal side surfaces of the cutting blade 210. Is covered with the top wall 230A of the cutting blade 210 housed in the blade seat 222 of the base 20. The cutting edge 210A protrudes in the horizontal direction Y, holds it in the exposed state, and is detachably attached to the base 20 by a screw 40 inserted into the screw insertion hole 34.

  The dowel 223 erected on the setting surface 222A of the blade seat 222 has a tapered guide surface 223A, the outer peripheral surface of which is tapered in the horizontal direction Y, and the cutting blade 210 When inserted into the clamp hole 211, the inclined guide surface 223A of the outer peripheral surface is in sliding contact with the wall surface of the clamp hole 211, so that the cutting blade 210 is in the direction opposite to the cutting edge 210A in the horizontal direction. It functions as a position restricting member that guides two side surfaces orthogonal to each other by pressing the two position restricting walls 231 and 213 on the blade holder 230 side to position the two position restricting walls 231 on the blade holder 230 side. , 213 functions as a reference surface for performing position regulation in the axial direction X and the horizontal direction Y.

  Further, the cutting tool 300 is formed from the vicinity of the cutting edge 210A of the cutting blade 210 and extends in the direction away from the cutting edge 210A over the outer peripheral surfaces of the base 20 and the blade holder 230, It has a facet guiding wall 25 which interferes with the facet of the external work to guide the facet away from the cutting edge 210A.

  The cutting guide wall 25 is a periphery of the cutting edge 210A of the outer peripheral wall of the blade holder 30 so as to expose the cutting edge 210A projecting in the horizontal direction X of the cutting blade 210 accommodated in the blade seat 222 of the base 20. A portion corresponding to the portion is concavely scraped to form a groove wall surface, and a guide surface formed substantially at right angles to the rake surface 210B of the cutting blade 210 and a curve continuous in the circumferential direction to the guide surface It consists of a blade holder side guide wall 25A having a guide surface and a base side guide wall 25B formed by scraping the outer peripheral wall of the base 20 and having a guide surface continuous with the blade holder side guide wall 25A. .

  Next, as a modified example of the cutting tool 100, a cutting tool 400 having a blade portion seat 322 housing the cutting blade portion 310 on the tip end surface of the base 20 will be described.

  FIG. 10A is an external perspective view of the cutting tool 400 as viewed from the top of the tip side, and FIG. 10B is an exploded perspective view of the cutting tool 400 as viewed from the top of the tip side. FIG. 11A is a perspective view of the cutting tool 400 viewed from the upper rear side obliquely, and FIG. 11B is an exploded perspective view of the cutting tool 400 viewed from the upper rear end side .

  In this cutting tool 400, the same or similar components as or to those of the cutting tool 100 are designated by the same reference numerals and their detailed description will be omitted, and different components will be described in detail.

  The cutting tool 400 includes a base portion 20 formed at an end face in the axial direction X of a blade portion seat 322 for accommodating the cutting blade portion 310 at the tip portion of the shank 21.

  The blade portion seat 322 in the cutting tool 400 has a setting surface 322A on which the cutting blade portion 310 is placed, and is provided with a position restricting wall 322B which is erected in the axial direction from the setting surface 322A. A dowel 323, which is inserted into the clamp hole 311 of the cutting blade 310, is provided upright on the setting surface 322A.

  Further, the blade holder 330 in the cutting tool 400 has a top wall 330A that covers the upper surface side of the cutting blade 310 housed in the blade seat 322 of the base 20 from the end surface side in the axial direction X. The upper surface side of the cutting blade 310 housed in the blade seat 222 of the base 20 is covered with the top wall 330A, and the cutting edge 310A of the cutting blade 310 protrudes in the horizontal direction Y and is held in an exposed state The screw 20 is detachably attached to the base 20 by a screw 40 inserted into the screw insertion hole 34 from the end face side in the axial direction X.

  The blade holder 330 includes a position restricting wall 331 with which one side of the cutting blade 310 accommodated in the blade seat 322 of the base 20 abuts.

The dowel 323 erected on the setting surface 222A of the blade seat 322 has a tapered guide surface 323A that is processed in a tapered shape with its outer peripheral surface being eccentric in the horizontal direction Y, and the cutting blade 310 When inserted into the clamp hole 311, the inclined guide surface 333A on the outer peripheral surface is in sliding contact with the wall surface of the clamp hole 311, so that the cutting blade 310 is in the direction opposite to the cutting edge 310A in the horizontal direction. It functions as a position restricting member that guides and presses the position restricting wall 322B on the blade seat 322 side and the position restricting wall 331 on the blade holder 330 side to positionally restrict the two side surfaces of the cutting blade 310. The position restricting wall 322B on the seat 322 side and the position restricting wall 331 on the blade holder 330 side function as a reference surface for restricting the position in the axial direction X and the horizontal direction Y.
That is, the position restricting wall 322B and the position restricting wall 331 have the same functions as the side wall surfaces 22B and 22C of the blade seat 22 in the cutting tool 100 shown in FIG. 2 described above.

  The cutting tool 400 is formed around the outer peripheral surface of the base 20 and the blade holder 330 so as to start from the vicinity of the cutting edge 310A of the cutting blade 310 and extend in the direction away from the cutting edge 210A. It has a facet guiding wall 25 which interferes with the facet of the external work to guide the facet away from the cutting edge 310A.

  The cutting guide wall 25 is a periphery of the cutting edge 310A of the outer peripheral wall of the blade holder 30 so as to expose the cutting edge 310A projecting in the horizontal direction X of the cutting blade 210 accommodated in the blade seat 322 of the base 20. A portion corresponding to the portion is concavely scraped to form a wall surface of the groove, and a guide surface formed substantially at right angles to the rake surface 310B of the cutting blade 310 and a curve continuously extending in the circumferential direction to the guide surface It consists of a blade holder side guide wall 25A having a guide surface and a base side guide wall 25B formed by scraping the outer peripheral wall of the base 20 and having a guide surface continuous with the blade holder side guide wall 25A. .

  The cutting blade 10 (110, 210, 310) provided with the cutting edge 10A (110A, 210A, 310A) and the cutting blade 10 (110, 210, 310) are separately provided. A base 20 having a blade seat 22 (122, 222, 322) provided at the tip, and the cutting blade 10 (110, 210, 310) removably attached to the base 20 by a screw 40 A blade holder 30 (130, 230, 330) which is accommodated in the blade seat 22 (122, 222, 322) and holds the blade edge 10A (110A, 210A, 310A) exposed, Starting from the vicinity of 110A, 210A, 310A) and extending away from the cutting edge 10 (110, 210, 310), said base 20 and said blade holding 30 (130, 230, 330) has a discharge direction restricting surface 25a formed over the outer peripheral surface and formed over the base 20 and the blade holder 30 (130, 230, 330); The cutting tool 100 (200, 300, 400) having a cutting guide wall 25 for guiding the cutting piece away from the cutting edge 10A (110A, 210A, 310A) by interfering with the cutting piece of the work piece When performing cutting while relatively feeding a relative rotating external workpiece in a predetermined direction, automatic cutting or spontaneous discharge of cutting chips at the time of cutting can be extremely smoothly performed to the outside by the guidance of the cutting guide wall 25 it can.

  The cutting blade 10 (110, 210, 310) in the cutting tool 100 (200, 300, 400) is a cutting blade by removing the blade holder 30 (130, 230, 330) from the base 20. The part 10 (110, 210, 310) can be removed from the blade seat 22 (122, 222, 322) and replaced.

  Here, the discharge direction restricting surface 25a provided on the cutting guide wall 25 can be provided on any of the base 20 (120, 220, 320) 20 and / or the blade holder 30 (130, 230, 330). When the discharge direction control surface 25a is formed on the blade holding member 30 (130, 230, 330), even if the discharge direction control surface 25a is damaged by guiding the facet in the discharge direction, it is easy. Can be exchanged for

  Further, the blade seat 22 (122, 222, 322) provided on the base 20 can accommodate a commercially available cutting tip.

  In the cutting tool 100 (200, 300, 400), the cutting blade 10 (110, 210, 310) separate from the base 20 and the blade holder 30 (130, 230, 330) is positioned and accommodated. The blade seat 22 (122, 222, 322) may be provided on the base 20 and / or the blade holder 30 (130, 230, 330).

  Furthermore, as the cutting blade 10 (110, 210, 310), a tip with a sensor for measuring the change can also be used.

  As a chip with a sensor, the case where the current carrying path which becomes a sensor is formed is illustrated, for example in the top view of Drawing 12 (A), and the side view of Drawing 12 (B). The current passage for measuring the change of the cutting blade is formed on all or part of the members of the cutting blade.

The sensor-equipped chip 50 shown in FIG. 12A is a rhombic positive chip with a hole, which is a rhombus in plan view, and has two noses 50A and 50B as apexes of the corners and a nose 50A. It has a blade 51A formed on the side edge and a blade 51B formed on the side edge of the nose 50B, and the electric conduction path 52A includes the nose 50A and the blade 51A, and is formed on the plane and the side. is, electric path 52B is, as including a nose 50B and the blade portion 51B, formed in a planar and side, also, the electric path 52A has a pair of external connection terminals 52T _a at both ends which sandwich the middle of the nose 50A is formed Ru. The electric path 52B is at both ends which sandwich the middle nose 50B is a pair of external connection terminals 52T _B is formed. A clamp hole 53 is provided at the center of the sensor-equipped chip 50.

When the sensor-equipped chip 50 having such a structure is used, for example, as in the cutting tool 500A shown in the exploded perspective view of FIG. 13A, the external connection terminals 52T _A and 52T _B of the sensor-equipped chip 50 are blades. The electrical path C1 may be configured to connect with the contact provided on the part holder 30, or the contact provided on the blade seat 22 as a cutting tool 500B shown in the exploded perspective view of FIG. 13 (B). The electrical path C2 may be configured to connect to

  The cutting tools 500A and 500B use the tip 50 with a sensor as the cutting blade 10 in the cutting tool 100 shown in FIG. 1 described above, and have a configuration other than the configuration of the electrical paths C1 and C2. The elements are the same as those of the cutting tool 100 and thus the detailed description is omitted.

When the external connection terminals 52T _A and 52T _B of the sensor-equipped chip 50 are connected to the contacts provided on the blade holding member 30 to make the conduction path conductive, the sensor-equipped chip 50 is accommodated in the blade seat 22 and the blade In the state where one of the part 51B or the blade part 51B is exposed and held, the blade part holds an electric conduction path having an electrode in contact with the external connection terminals 52T _A and 52T _B of the electric conduction paths 52A and 52B on the sensor chip 50 side. By forming on the body 30 side, the electrical path C1 can be configured.

  For example, as shown in FIG. 14, the current path on the blade holder 30 side can be provided as an electronic circuit board 61 in the blade holder 30.

  Further, as shown in the schematic cross-sectional view of FIG. 15, the blade portion holder 30 may be provided with the battery 62 together with the electronic circuit board 61.

  The electronic circuit board 61 provided in the blade holder 30 has, for example, a so-called RFID function composed of an analog circuit and / or an IC chip and the like, and has a central processing unit for controlling all the processes. CPU, high-speed memory RAM for reading and writing temporary data, read-only memory ROM used for storing programs, writable memory EPROM for storing data, electronic circuit board and external And an antenna for performing wireless communication with the outside or supplying power using an external radio wave, and a resistance value detection unit. The electronic circuit board 61 is also provided with an acceleration sensor.

  The resistance value detection section provided on the electronic circuit board 61 provided in the blade section holder 30 simultaneously detects this resistance value of the current path by measuring the voltage value or the current value, and digital information (of course, the analog signal It may be a process, and is provided to the CPU. As a result, resistance value data is stored in the EPROM.

  The acceleration sensor detects vibration, displacement and / or deformation of the electronic circuit board 61, and calculates displacement amount data of the cutting tool. As a result, it is possible to grasp the operation status (a swing width, a bend, so-called chatter, etc.) of the cutting tool. The displacement amount data is stored in the EPROM. The acceleration sensor may adopt various methods such as a generally known vibration method and an optical method as well as a semiconductor method such as an electrostatic capacitance type, a piezoresistive type, and a gas temperature distribution type.

The electronic circuit board 61 and the battery 62 may be built in the shank 21.
In this case, as shown in the exploded perspective view of FIG. 16A, the electric path between the sensor-equipped chip 50 and the electronic circuit board 61 is a blade holder 30 as shown by an electric path C3 schematically shown. Alternatively, as in the electrical path C3 schematically shown in the exploded perspective view of FIG. 16 (B), it may be directly connected from the sensor-equipped chip 50 without passing through the blade holding member 30.

  FIG. 16A is a cutting tool 500C schematically showing an electrical path C3 formed between the sensor-equipped chip 50 and the electronic circuit board 61 in the shank 21 via the blade holder 30. It is a disassembled perspective view. FIG. 16B is an exploded perspective view of the cutting tool schematically showing an electrical path directly formed between the sensor-equipped chip 50 and the electronic circuit board 61 in the shank 21.

  When passing through the blade holder 30, the blade holder 30 has a tip side terminal, a wire, and a holder side terminal, and the base 20 has a blade holder contact point with the base side terminal of the blade holder. A terminal and a wire whose one end is connected to the blade portion holder side terminal may be provided, the electronic circuit board 61 may be connected to the other end of the wire, and the battery 21 may be connected to the other end. Further, when not passing through the blade holder 30, the base 20 is configured to include a chip side terminal having a contact with the external connection terminal of the chip instead of the blade holder side terminal in the above configuration. Good.

  Note that the electronic circuit board and the battery may be provided on the apparatus body side without being provided on the cutting tool side such as the blade holding body 30 and the base 20.

  By providing the electronic circuit board 61 on the blade portion holder 30, when the electronic circuit board 61 breaks down, the blade portion holder 30 can be removed and replaced, or the electronic circuit board 61 can be repaired. . Furthermore, if the electronic circuit board 61 is provided with an external interface, the blade holding body 30 can be removed to obtain data from the electronic circuit board 61. Further, although the antenna is provided on the electronic circuit board 61 here, the antenna may be provided on the blade holder 30 or the base 20 separately from the electronic circuit board.

  Further, the power supply, the communication of the resistance value data of the chip, and the communication of the displacement amount data of the cutting tool may be performed by wired communication, not by wireless communication using an antenna.

  In the case of the short range wireless communication tag, the battery and the storage battery are not necessarily required. Although the case where the battery 52 is incorporated is exemplified in the present embodiment, a battery box may be disposed outside, and power may be supplied from the battery box to the cutting head by a wired and / or wireless method. Moreover, although the case where the sensor (electric conduction path) of the cutting tool operates using the battery 52 is shown in this embodiment, for example, when electric power is supplied from the outside by wired power wiring, this battery is omitted. It is also possible. Furthermore, the battery 52 can be omitted also in the case of a passive RFID that receives radio waves from an external reader or the like as energy and operates using this energy as a power supply.

  A cutting tool using such a sensor-equipped chip 50 can construct a cutting system 1 configured as shown in FIG. 17.

  The cutting system 1 includes a cutting device 2, a plurality of cutting heads 3 on which a cutting tool using a chip with a sensor provided in the cutting device 2 is mounted, and a drive provided to the cutting device 2. It comprises an apparatus 4 and an information collecting apparatus 5 connected by wire or wireless to the plurality of cutting heads 3.

  The resistance value data and displacement amount data stored in the EPROM by the function of the RFID provided in each cutting head 3 can be used as an antenna at any time when the administrator collects information, at regular timing, or at irregular timing. It is transmitted to the outside (information collection device 5) via Of course, transmission of various acquired data may be either wired method or wireless method, and may be analog signal method or digital signal method.

  Information (individual identification information) for identifying the individual of the cutting tool is stored in the ROM or the EPROM, and in the information collecting device 5 side, it is associated with the individual identification information in the cutting processing device 2. It is possible to register the type and installation location (installation company) etc. Thereby, each cutting tool can be managed individually. Although a part of the electronic circuit board 61 adopts a so-called RFID technology using an IC chip, the present invention is not limited to this, and another technology may be used, and a near field communication tag Various wireless communication means such as an IC tag and a long distance wireless communication tag can be adopted.

  As described above, the cutting tool 100, 200, which performs cutting while relatively feeding in the predetermined direction to the external workpiece which is relatively rotated by the cutting blade portion 10, 110, 210, 310 having the cutting edge separately provided. Although 300, 400 and 500 A 500 B have been described, the cutting edges of the cutting blade portions 10, 110, 210 and 310 as in the cutting tools 600 A and 600 B shown in the exploded perspective view of FIG. 10A, 110A, 210A, 310A may be integrated with the base 20 or the blade holder 30, 130, 230, 330.

  FIG. 18A is an exploded perspective view of a cutting tool 600A provided with a blade holding member 640A in which the cutting edge 610A of the cutting blade is integrated. FIG. 18B is a base 622B in which the cutting edge 610B is integrated. FIG. 16 is an exploded perspective view of a cutting tool 600B including the

  In the cutting tool 600A, the cutting edge 610A of the cutting blade is integrated with the blade holder 640A detachably attached to the base 622A by the screw 40, and is inserted into the screw insertion hole 34 of the blade holder 640A. The screw 40 is detachably attached to the base 622A. A screw hole 611A is formed in the base 622A at a position corresponding to the screw insertion hole 34.

  In the cutting tool 600B, the cutting edge 610B of the cutting blade is integrated with the base 622B to which the blade holder 640B is detachably attached by the screw 40, and the screw insertion hole 34 of the blade holder 640B is integrated. The blade holder 64B is detachably attached to the base 622B by the screw 40 inserted. Screw holes 611B are formed in the base 622B at positions corresponding to the screw insertion holes 34.

  The cutting tools 600A and 600B start near the cutting edges 610A and 610B of the cutting blade, and extend in a direction away from the cutting edges 610A and 610B, the blade holding members 640A and 640B and the bases 622A and 622B. And a facet guide wall 25 which interferes with the facet of the external work to guide the facet away from the cutting edges 610A, 610B.

  The facet guiding wall 25 is composed of a blade holder side guiding wall 25A and a base side guiding wall 25B having a guiding surface continuous with the blade holder side guiding wall 25A. Further, the wall surface on the end side of the blade portion holder side guiding wall 25A functions as the discharge direction regulating surface 25a.

  The base-side guide wall 25B is branched in the middle of extending in the direction away from the blade tips 610A and 610B, and includes a base-side guide wall 25C formed to be bent upward than the blade tips 6610A and 610B. By adjusting the phase when this base guide wall 25C is attached to the cutting device (not shown) of the bases 622A and 622B, the fine facets are discharged by their own weight, and the series of facets to the fine facets are smooth. Can be discharged.

  The discharge direction control surface 25a is formed in the vicinity of the cutting edges 610A, 610B, and faces the relative feed direction of the external work and the cutting edges 610A, 610B (here, the axial direction X of the shank 21). That is, the discharge direction control surface 25a is disposed on the forward side of the cutting edges 610A, 610B in the relative feed direction with respect to the cutting edges 610A, 610B, and faces the backward direction of the cutting edges 610A, 610B in the relative feed direction. There is.

  Since the discharge direction restricting surface 25a is a wall surface on the end side of the blade holder side guiding wall 25A, it is continuous with the end of the blade holder side guiding wall 25A, and a cutter in the vicinity of the cutting edges 610A, 610B. The recovery space is in the form of a blind alley in the relative feed direction. As a result, the cutter produced from the cutting edges 610A and 610B can not advance with interference with the discharge direction control surface 25a even if it tries to move to the tip side of the base 20, and discharge of the cutter is performed by the discharge direction control surface 25a. The direction is limited to one direction, and it is automatically discharged or spontaneously discharged proximally along the facet guide wall 25 (25A, 25B).

  That is, in this cutting tool 600A, 600B, it starts from the vicinity of the cutting edges 610A, 610B and interferes with the external work tip to separate the cutting edge from the cutting edges 610A, 610B so as to extend away from the cutting edge 10. Since the facet guide wall 25 for guiding in the direction is formed over the outer peripheral surfaces of the blade portion holding members 640A, 640B and the bases 622A, 622B, a predetermined direction (axis When cutting is performed while being relatively fed in the direction X), the cutting guide at the time of cutting can be automatically and automatically discharged or spontaneously discharged to the outside by the guidance of the cutting guide wall 25.

  In the cutting tool 600A, 600B, the cutting edges 610A, 610B of the cutting blade integrated with the base 20 or the blade holder 30, 130, 230, 330 are the cutting edges of the cutting blades 10, 110, 210, 310 Those corresponding to various uses such as 10A, 110A, 210A, and 310A can be adopted.

  Also, in the cutting tools 100, 200, 300, 400, 500A, 500B, 500C, 500D, as in the cutting tools 600A, 600B, adopt a structure in which the base or blade holder and the cutting edge are integrated. Can.

10, 110, 210, 310 Cutting blade, 10A, 110A, 210A, 310A, 610A, 610B Cutting edge, 10B, 110B, 210B, 310B Rake face, 11, 111, 211, 311 Hole for clamping, 20, 622A, 622B base, 20A outer side wall, 21 shank, 22, 122, 222, 322 blade seat, 22A, 122A, 222A, 322A mounting surface, 22B, 22C, 122B, 122C side wall, 23, 61A, 611B screw hole, 25 Cutter guide wall, 25a discharge direction control surface, 25A blade holder side guide wall, 25B, 25C base side guide wall, 30, 130, 230, 330, 640A, 640B blade holder, 30A, 130A, 230A, 330A 31, 32 and 36 legs, 31A, 32A and 36A inner side wall, 33, 123, 223, 323 dowels, 33A, 123A, 223A, 323A guiding surfaces, 34 screw insertion holes, 35A grooves for coolant flow channels, 35 silicone tubes, 40 screws, 50 chips with sensor, 50A, 50B nose, 51A, 51B blade part, 52A, 52B conduction path, 52T _A , 52T _A external connection terminal, 61 electronic circuit board, 62 battery, 100, 200, 300, 400, 500A, 500B, 500C, 500D, 600A, 600B cutting tool, 231, 232, 322B, 332A Position control wall, C1, C2, C3, C4 electrical path

Claims (14)

A cutting tool that performs cutting while relatively feeding an external workpiece that rotates relative to a relatively rotating external workpiece by means of a cutting blade provided with a blade tip integrally or separately provided.
A base provided at the tip of the shank;
A blade holder which is detachably attached to the base and disposed in the vicinity of the cutting blade;
A facet of the outer work formed on the base and / or the outer peripheral surface of the blade holder so as to start from the vicinity of the blade and extend toward the proximal end of the shank; A cutting guide wall which interferes and guides the facet in a direction toward the proximal side of the shank. The cutter guide wall is connected to the blade holder side guide wall formed on the outer peripheral surface of the blade holder around the cutting edge of the cutting blade and to the base so as to be continuous with the blade holder side guide wall. It has a base side guide wall formed, and at least a part of the wall surface on the end side of the blade holder side guide wall is disposed on the shank tip side of the blade edge with reference to the blade edge and directed to the blade edge The cutting tool according to claim 1, wherein the surface which has been formed functions as a discharge direction control surface. The cutting blade is separate from the blade holder and the base, and
The cutting tool according to claim 1 or 2, wherein a blade seat for positioning and storing the cutting blade is provided in at least one of the blade holder and the base. . The blade seat has a side wall surface for positioning the cutting blade,
The cutting tool according to claim 3, wherein the cutting blade portion is pressed against the side wall surface and configured to be positionable. In the blade holder and / or the base, a dowel inserted into a fixing hole provided in the cutting blade is erected,
Having an inclined guide surface on the outer peripheral surface of the above-mentioned dowel;
5. The cutting blade according to claim 4, wherein the cutting blade portion is configured to be guided and pressed against the side wall surface of the blade seat and positioned by the inclined guide surface of the dowel. tool.   The said blade part holding body and / or the said base part are equipped with the discharge port of the cooling fluid discharged | emitted toward the blade tip of the said cutting blade, The any one of the Claims 1 thru | or 5 characterized by the above-mentioned. Cutting tool.   The blade holder has a coolant flow passage communicating with the discharge port, and the coolant passage is formed of a silicone tube embedded in a groove formed in the blade holder. The cutting tool according to claim 6, characterized in that: The whole or a part of the cutting blade has a current passage for measuring a change of the member,
8. The blade holding member and / or the base portion is formed with a conductive path electrically connected to the conductive path on the cutting blade side. The conductive path according to any one of claims 1 to 7, Cutting tool. The cutting blade is separate from the blade holder and the base, and
The blade holder and / or the base has a blade seat for accommodating the cutting blade,
The blade holding member and / or the base is provided with an electric conduction path having an electrode in contact with the electrode of the electric conduction path on the cutting blade side when the cutting blade is accommodated in the blade seat. The cutting tool according to claim 8, characterized in that:   The cutting tool according to claim 8 or 9, wherein the blade portion holder is provided with an electronic circuit board as the current path on the blade portion holder side.   11. The cutting tool according to claim 10, wherein the electronic circuit board is provided with a wireless communication unit electrically connected to the conduction path of the blade holder.   12. The cutting according to claim 10, wherein the electronic circuit board is provided with a feeding means electrically connected to the conduction path of the blade holding member together with the wireless communication means. Tools. A base provided at a tip portion of a shank in a cutting tool which performs cutting while relatively feeding an external work which rotates relative to a relative rotating external work by a cutting blade having a cutting edge integrally or separately provided A blade holder that can be detachably attached and is disposed in the vicinity of the cutting blade, wherein
Starting from the vicinity of the cutting edge and extending toward the proximal end of the shank, the cutting edge interferes with the external work piece cut by the cutting edge to direct the cutting member toward the proximal end of the shank A blade holder, comprising: a cutter guide wall for guiding to the outer peripheral surface.   The blade holder as set forth in claim 13, further comprising a discharge port for a coolant which is discharged toward the cutting edge of the cutting blade.

Images