CN110814402A - Novel can dismantle fluting and use numerical control cutter - Google Patents

Abstract

The invention belongs to the field of cutting tools, and in particular relates to a novel detachable numerically controlled cutting tool for grooving, comprising a diamond-shaped blade and a cutter bar for installing the diamond-shaped blade. The arc slope is located on the lower edge of the installation plane. The installation plane is provided with a V-shaped installation port for installing the diamond-shaped blade. The inner wall of the V-shaped installation port is provided with screw holes; the lower part of the diamond-shaped blade is adapted to the V-shaped installation port, and A mounting hole is provided, the upper part of the diamond-shaped blade includes a first cutter body and a second cutter body arranged in dislocation, the upper end of the first cutter body is provided with a first upper end face and a first inclined end face, and the left side is provided with a first left end face A; The upper ends of the two cutter bodies are provided with a second upper end surface and a second inclined end surface, and the right side is provided with a second right end surface C. The invention can form end tooth relief angle and peripheral tooth relief angle on the upper end and both sides of the rhombus blade, thereby realizing the machining of the workpiece end face and the circumferential direction of the inner hole, and is convenient to set special blades according to the grooving requirements of the compressor blades.

Description

A new type of detachable CNC tool for grooving

technical field

The invention belongs to the field of machining tools, and in particular relates to a novel numerical control tool for detachable grooving.

Background technique

Workpieces such as compressor blades need to be grooved by CNC tools during processing, but the current grooving tools are generally integrated tools, which cannot well meet the special requirements of compressor blade grooving. The tool needs to be replaced as a whole, and the cost is high; while the existing split tool has low processing efficiency and precision, small cutting range, and metal chips cannot be discharged smoothly during the processing, which is likely to cause jamming or affect processing. Therefore, it is very necessary to propose a new type of detachable special CNC tool for grooving.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a novel detachable CNC tool for grooving, so as to adapt to the grooving of compressor blades and other workpieces, and at the same time, it is convenient to replace the blade and reduce the cost.

The technical scheme adopted by the present invention to realize its purpose is as follows:

A new type of detachable CNC tool for grooving, comprising a diamond-shaped blade and a tool shank for installing the diamond-shaped blade. The inclined end faces are both vertical installation planes and arc inclined planes located at the lower edge of the installation plane. The installation plane is provided with a V-shaped installation port for installing the diamond-shaped blade, and the inner side of the V-shaped installation port is connected to the inner side of the V-shaped installation port. The inner wall parallel to the mounting plane is provided with screw holes for fixing the diamond-shaped blade; the lower part of the diamond-shaped blade is adapted to the V-shaped mounting port, and is provided with mounting holes corresponding to the screw holes, and the The upper part of the rhombus blade includes a first cutter body and a second cutter body arranged in dislocation, the upper end of the first cutter body is provided with a first upper end surface and a first inclined end surface, and the left side is provided with a first left end surface A; The upper end of the cutter body is provided with a second upper end surface and a second inclined end surface, and the right side is provided with a second right end surface C; the first upper end surface is connected with the second upper end surface.

Further, the installation plane is further provided with a circular groove communicating with the lower end of the V-shaped installation port, and the circular groove and the screw hole are located on the same axis.

Further, the depth of the circular groove is set between 1mm-8mm.

Further, the included angle between the inclined end surface and the center line of the V-shaped installation port is set between 30° and 60°.

Further, the included angle between the installation slopes on both sides of the V-shaped installation opening is set between 25°-65°.

Further, the length and width of the first upper end surface and the second upper end surface are not equal; the width of the first upper end surface is set between 0-1.5mm, and the width of the second upper end surface is set at 0-1.5mm. Between 0-1mm.

Further, the first upper end surface and the second upper end surface are both set as inclined surfaces, and the included angle between the two and the horizontal surface is equal, and is set between 0°-20°.

Further, the angles between the first inclined end surface and the second inclined end surface and the horizontal plane are equal, and are set between 20°-45°.

Beneficial effects of the present invention: the present invention can form the relief angle of the end tooth and the relief angle of the peripheral tooth on the upper end and both sides of the diamond-shaped blade, so as to realize the machining of the end face of the workpiece and the circumferential direction of the inner hole, which is convenient for grooving according to the needs of the compressor blade. A special blade is set; the diamond-shaped blade is positioned through the V-shaped installation port on the tool bar and fixed by screws, which can effectively fix the diamond-shaped blade and make it less prone to loosening, which can effectively ensure the processing efficiency and accuracy of the tool, and the diamond-shaped blade wears out. Or damaged, it can be easily replaced without the need to replace the arbor, thereby reducing the cost; and by setting the inclined end faces symmetrically on both sides of the end of the arbor body, the cutting range of the diamond-shaped indexable insert can be effectively widened, and at the same time To ensure the strength of the tool bar; in addition, by cutting the lower edge of the installation plane to form a circular arc slope, which is conducive to the smooth discharge of metal chips generated during processing, preventing chips from being blocked or affecting processing.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of the cutter bar in the embodiment of the present invention;

3 is a schematic three-dimensional structure diagram of a diamond-shaped blade in an embodiment of the present invention;

Fig. 4 is an enlarged view of part X in Fig. 3;

5 is a schematic three-dimensional structural diagram of a diamond-shaped blade from another perspective in an embodiment of the present invention;

Fig. 6 is the front view structure schematic diagram of the embodiment of the present invention;

Fig. 7 is the enlarged view of Y part in Fig. 6;

8 is a schematic diagram of a rear view of an embodiment of the present invention;

FIG. 9 is an enlarged view of the Z part in FIG. 8

FIG. 10 is a schematic top-view structural diagram of an embodiment of the present invention.

Detailed ways

The technical solutions of the present invention will be further described below with reference to the accompanying drawings, but the claimed scope of the present invention is not limited thereto.

1-10, a new type of detachable CNC tool for grooving includes a diamond-shaped blade 1 and a tool bar 5 for installing the diamond-shaped blade 1. The ends of the tool bar 5 are symmetrically provided with inclined end surfaces on both sides. 51. The front side is cut to form a mounting plane 52 that is perpendicular to the inclined end faces 51 on both sides and a circular arc inclined plane 53 located on the lower edge of the mounting plane 52. The mounting plane 52 is provided with a rhombus for mounting the The V-shaped installation port 54 of the blade 1, the inner wall 55 of the V-shaped installation port 54 parallel to the installation plane 52 is provided with a screw hole 56 for fixing the diamond-shaped blade 1; The V-shaped mounting port 54 is adapted to fit, and is provided with mounting holes 2 corresponding to the screw holes 56. During installation, the two sides of the lower part of the diamond-shaped blade 1 are fitted with the mounting slopes on both sides of the V-shaped mounting port 54, and the diamond-shaped The blade 1 is embedded in the V-shaped mounting hole 54, and then passes through the mounting hole 2 to fit with the screw hole 56 through a screw, so that the diamond-shaped blade 1 is mounted and fixed on the end of the tool shank 5 for machining. By positioning the diamond-shaped blade 1 through the V-shaped installation port 54 and fixing it with screws, the diamond-shaped blade 1 can be effectively fixed, so that it is not easy to loosen, and the processing efficiency and accuracy of the tool can be effectively guaranteed. It can be easily replaced without the need to replace the cutter bar 5, thereby reducing the cost; and by arranging the inclined end faces 51 symmetrically on both sides of the end of the cutter bar body 1, the cutting range of the diamond-shaped indexable insert can be effectively widened, while ensuring that the cutter rod strength; in addition, by cutting the lower edge of the installation plane 52 to form a circular arc inclined surface 53, it is beneficial to the smooth discharge of metal chips generated during the processing, and prevents the chips from being blocked or affecting the processing.

In order to facilitate the grooving process, the upper part of the diamond-shaped blade 1 includes a first cutter body 3 and a second cutter body 4 arranged in dislocation, and the upper end of the first cutter body 3 is provided with a first upper end surface 31 and a first inclined end surface 32. A first left end surface A34 is provided, the right side of the first cutter body 3 is provided with an inclined first right end surface 33, and the side in integral contact with the second cutter body 4 is provided with a first main cutter surface 35; The upper end of the cutter body 4 is provided with a second upper end surface 41 and a second inclined end surface 42, and the right side is provided with a second right end surface C44; A second main cutter face 45 is provided on the side of the cutter body 3 that is in integral contact with each other; the first upper end face 31 is connected to the second upper end face 41 .

By arranging the first upper end face 31 and the first inclined end face 32 on the first cutter body 3 , the first relief angle of the first end tooth is formed between the first upper end face 31 and the first main cutter face 35 of the first cutter body 3 311, a first end tooth and a second relief angle 321 are formed between the first inclined end surface 32 and the first upper end surface 31; A second end tooth first relief angle 411 is formed between the two upper end surfaces 41 and the second main cutter surface 45 of the second cutter body 4 , and a second end tooth second rear angle is formed between the second inclined end surface 42 and the second upper end surface 41 Angle 421; thus, the workpiece can be cut from the end face through the first relief angle 311 of the first end tooth and the first relief angle 411 of the second end tooth.

In addition, a first peripheral tooth first relief angle 37 is formed between the first left end face A34 and the first main face 35 of the first cutter body 3 , and the second right end face C44 and the second main cutter face 45 of the second cutter body 4 The first relief angle 47 of the second peripheral teeth is formed between them, so that the workpiece is circumferentially cut by the first relief angle 37 of the first peripheral tooth and the first relief angle 47 of the second peripheral tooth.

Further, a first left end surface B36 and a second right end surface D46 can be provided on the rear side of the first left end surface A34 and the front side of the second right end surface C44, respectively, so that between the first left end surface B37 and the first left end surface A36 The second relief angle 38 of the first peripheral tooth is formed, and the second relief angle 48 of the second peripheral tooth is formed between the second right end surface D46 and the second right end surface C44, so as to ensure the sharpness of the tool.

Among them, the angle between the first left end face A34 and the first main cutter face 35 (ie the first relief angle 37 of the first circumferential tooth) and the angle between the second right end face C44 and the second main cutter face 45 (ie the first clearance angle 37 of the first circumferential tooth) The first relief angle 47 of the second circumferential tooth is equal, and the angle between the first left end face A34 and the first left end face B36 (ie the second relief angle 38 of the first circumferential tooth) is the same as the second right end face C44 and The included angle between the second right end face D46 (ie, the second clearance angle 48 of the second circumferential teeth) is equal, so that the strength of both sides of the tool is consistent and one-side wear is avoided. Specifically, the included angle between the first left end face A34 and the first main face 35 and the included angle between the second right end face C44 and the second main face 45 are all set between 70° and 90°, while the first The included angle between the left end face B36 and the first main cutter face 35 and the included angle between the second right end face D46 and the second main cutter face 45 are all set between 20° and 60°, so as to take into account the cutter circumference as much as possible. To sharpness and tool strength.

On the basis of the foregoing embodiment, the installation plane 52 is further provided with a circular groove 57 communicating with the lower end of the V-shaped installation port 54 , the circular groove 57 and the screw hole 56 are located on the same axis, and the circular groove 57 and the screw hole 56 are located on the same axis. The connected circular groove 57 provided at the lower end of the V-shaped mounting port 54 can be used as an undercut when machining the V-shaped mounting port 54, and at the same time, it can also play the role of shock absorption during operation and improve the stability of the tool. Specifically, the depth of the circular groove 57 can be set between 1 mm and 8 mm, and can be set to the same depth as the V-shaped installation opening 54 , so as to be continuously processed and retracted at the circular groove 57 .

On the basis of the foregoing embodiment, the included angle between the inclined end surface 51 and the center line of the V-shaped installation opening 54 is set to 30°, so as to widen the range of inclined machining of the tool bar as much as possible.

On the basis of the foregoing embodiment, the included angle between the mounting slopes on both sides of the V-shaped mounting port 54 is set between 25° and 65°, which is specifically determined according to the included angle of the mounting end of the diamond-shaped indexable insert to be mounted. In order to better fit the installation, the surface roughness of the installation slope is set to be less than Ra0.5, so that the lower two sides of the diamond-shaped blade 1 are more closely fitted with the installation slope, so that the installation structure is more stable.

On the basis of the foregoing embodiment, the length and width of the first upper end surface 31 and the second upper end surface 41 are not equal, so as to reduce the probability of the blade causing resonance during machining and effectively improve the surface of the machined part Specifically, the width of the first upper end surface 31 is set between 0-1.5 mm, and the width of the second upper end surface 41 is set between 0-1 mm.

On the basis of the foregoing embodiment, the first upper end surface 31 and the second upper end surface 41 are both set as inclined surfaces, and the included angle between the two and the horizontal surface is equal, and is set between 0°-20° At the same time, the angle between the first inclined end surface 32 and the second inclined end surface 42 and the horizontal plane is equal, and is set between 20°-45°, so that the first relief angle of the first end tooth and the second end tooth are first The angles of one relief angle are equal, and the angles of the second relief angle of the first end tooth and the second relief angle of the second end tooth are equal, so that the strength consistency of the end face cutting parts of the first cutter body 3 and the second cutter body 4 is high, avoiding One-sided wear.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments. The technical solutions of the present invention are modified, or some or all of the technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A novel detachable CNC tool for grooving, comprising a diamond-shaped blade (1) and a cutter bar (5) for installing the diamond-shaped blade (1), characterized in that: the end of the cutter bar (5) Symmetrical inclined end surfaces (51) are provided on both sides, and an installation plane (52) perpendicular to the inclined end surfaces (51) on both sides and an arc located at the lower edge of the installation plane (52) are formed on the front side by cutting The inclined surface (53), the mounting plane (52) is provided with a V-shaped mounting port (54) for mounting the diamond-shaped blade (1), and the inner side of the V-shaped mounting port (54) is connected to the mounting plane ( 52) The parallel inner wall (55) is provided with screw holes (56) for fixing the diamond-shaped blade (1); There are mounting holes (2) corresponding to the screw holes (56), and the upper part of the diamond-shaped blade (1) includes a first cutter body (3) and a second cutter body (4) that are dislocated. The upper end of the body (3) is provided with a first upper end surface (31) and a first inclined end surface (32), and the left side is provided with a first left end surface A (34); the upper end of the second cutter body (4) is provided with a second The upper end surface (41), the second inclined end surface (42), and the right side are provided with a second right end surface C (44); the first upper end surface (31) is connected with the second upper end surface (41). 2. The novel detachable CNC tool for slotting according to claim 1, characterized in that: the mounting plane (52) is further provided with a circular groove (57) communicating with the lower end of the V-shaped mounting port (54). ), the circular groove (57) and the screw hole (56) are located on the same axis. 3 . The novel detachable CNC tool for grooving according to claim 2 , wherein the depth of the circular groove ( 57 ) is set between 1 mm and 8 mm. 4 . 4 . The novel detachable CNC tool for grooving according to claim 1 , wherein the angle between the inclined end surface ( 51 ) and the center line of the V-shaped installation port ( 54 ) is set at 30° 4. 5 . °-60°. 5. The novel detachable grooving CNC cutter according to claim 1, characterized in that: the included angle between the mounting slopes on both sides of the V-shaped mounting port (54) is set between 25°-65° . 6. The novel detachable CNC tool for grooving according to any one of claims 1-5, characterized in that: the length and width of the first upper end surface (31) and the second upper end surface (41) are not equal; the width of the first upper end surface (31) is set between 0-1.5 mm, and the width of the second upper end surface (41) is set between 0-1 mm. 7. The novel detachable CNC tool for grooving according to any one of claims 1 to 5, wherein the first upper end surface (31) and the second upper end surface (41) are both set as inclined surfaces , and the angle between the two is equal to the horizontal plane, and is set between 0° and 20°. 8. The novel detachable CNC tool for grooving according to any one of claims 1-5, characterized in that: the angle between the first inclined end surface (32) and the second inclined end surface (42) and the horizontal plane equal and set between 20°-45°.

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