JP2010069553A - Compound tool, machine tool, and machining method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compound tool capable of improving work efficiency by carrying out machining from rough machining to finish machining with one tool, and also to provide a machine tool, and further to provide a machining method. <P>SOLUTION: The compound tool 40 includes a tool body 41 having a center axis, a blade 45 for rough machining arranged at the outer circumference of the tool body 41, a blade 46 for finish machining, and a grinding tool 47. The blade 45 for rough machining, the blade 46 for finish machining, and the grinding tool 47 are radially arranged with the center axis of the tool body as a center. The grinding tool 47 includes an air motor 51 configured to be rotatable around an axis almost orthogonal to the center axis of the tool body and a grindstone 62 mounted to the air motor through a shaft 61. The grinding tool 47 is located at an inner side than a circumference with a distance from the center axis of the tool body to the edge of the blade 45 for rough machining as a radius and is configured to be rotatable around the axis almost orthogonal to the center axis of the tool body. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a composite tool capable of performing roughing and finishing with a single tool, a machine tool using the composite tool, and a machining method.

Conventionally, “a deburring tool with a cutting tool” disclosed in Patent Document 1 is known as a tool capable of machining a plurality of different machining sites with a single tool.
This is a rotary tool that is attached to a spindle or the like of a cutting device and cuts a workpiece while rotating, and a chamfering knife that forms a chamfered portion at the periphery of the opening of a circular hole, and a step A planing knife for forming a flat surface inside the hole is provided so as to be offset in the axial direction.

During cutting, the tool body is pressed against the workpiece while rotating. Then, the flat surface of the stepped hole is cut by a flat knife fixed to the tool body. When the tool body is pushed to a predetermined depth while cutting a flat surface, the peripheral edge of the opening is chamfered by a chamfering knife fixed to the rear of the flat cutting knife.
Therefore, if the tool of patent document 1 is used, formation of the flat surface of a step part and deburring of the periphery of an opening part can be performed with one tool.

Japanese Patent No. 2904777

  However, since the tool described in Patent Document 1 processes different processing parts, for example, when finishing a processed surface, the processing operation must be performed again after replacing the tool with a finishing tool. Therefore, there is a problem that work efficiency is poor. In other words, after roughing into a predetermined shape with the tool described in Patent Document 1, it must be replaced with a finishing tool, which requires labor and time associated with tool replacement, and there is a problem that efficient work cannot be expected. is there.

  An object of the present invention is to solve such a problem, and to perform a composite tool, a machine tool, and a machine tool capable of improving work efficiency by processing from roughing to finishing with one tool without changing tools It is to provide a processing method.

  The composite tool of the present invention comprises a tool body having a central axis and a plurality of types of processing tools provided on the outer periphery of the tool body, the plurality of types of processing tools comprising a cutting tool and a grinding tool, The cutting tool and the grinding tool are arranged radially about the central axis of the tool body, and the grinding tool is located inside a circumference having a radius from the central axis of the tool body to the cutting edge of the cutting tool. And is configured to be rotatable around an axis substantially orthogonal to the central axis of the tool body.

According to this configuration, when the composite tool is rotated about the central axis of the tool body and the composite tool and the workpiece are relatively moved, the workpiece is cut (roughly processed) by the cutting tool. At this time, since the tip of the grinding tool is positioned inside the circumference having the radius from the center axis of the tool body to the cutting edge of the cutting tool, even if rough machining is performed by rotating the composite tool The grinding tool does not contact the workpiece.
Next, with the grinding tool of the composite tool kept in contact with the roughly processed workpiece, the grinding tool is centered on an axis substantially orthogonal to the central axis of the tool body without rotating the composite tool. When the composite tool and the workpiece are relatively moved while being rotated, the workpiece is ground by the grinding tool. At this time, since the composite tool is not rotated, the cutting tool does not come into contact with the workpiece, and thus the workpiece is finished by the grinding tool.
Therefore, since the roughing process to the finishing process can be performed with one tool without changing the tool, the working efficiency can be improved.

In the composite tool of the present invention, the grinding tool is provided on the tool body and configured to be rotatable about an axis substantially orthogonal to the center axis of the tool body, and a tip of the air motor. It is preferable that it is comprised including the grindstone attached through the shaft.
According to this configuration, the grinding tool is composed of an air motor that can rotate around an axis substantially orthogonal to the central axis of the tool body, and a grindstone that is rotated by the air motor. Grinding can be performed while rotating at high speed. Therefore, the processed surface of the workpiece can be finished with high accuracy.

In the composite tool of the present invention, the cutting tool includes a roughing blade and a finishing blade, and at least one roughing blade is provided on an outer periphery of the tool body, and the roughing blade is used. The tip of the blade is located a predetermined distance away from the central axis of the tool body in a direction orthogonal to the central axis, and at least one finishing blade is provided on the outer periphery of the tool body, and It is preferable that the tip of the finishing blade is located on the inner side of a circumference having a radius from the center axis of the tool body to the cutting edge of the roughing blade.
According to this configuration, when the composite tool is rotated about the central axis of the tool body and the composite tool and the workpiece are relatively moved, the workpiece is roughly processed by the roughing blade. At this time, the tip of the finishing blade is positioned inside the circumference with the radius from the center axis of the tool body to the cutting edge of the roughing blade. The finishing blade does not come into contact with the workpiece even if the process is performed.
Next, when the composite tool and the work piece are moved relative to each other without rotating the composite tool while the finish tool blade of the composite tool is in contact with the rough processed work piece, The workpiece is planed by the blade. At this time, since the composite tool is not rotated, the roughing blade does not come into contact with the workpiece, and the workpiece is finished by the finishing blade.
Therefore, since the roughing process to the finishing process can be performed with one tool without changing the tool, the working efficiency can be improved.

In the composite tool of the present invention, the roughing blade, the finishing blade and the grinding tool are arranged in one plane orthogonal to the central axis, and the finishing blade and the grinding tool are The composite tool is characterized in that it is arranged at an interval of 30 degrees or more about the central axis with respect to the roughing blade adjacent thereto.
According to this configuration, since the roughing blade, the finishing blade and the grinding tool are arranged on the same plane perpendicular to the central axis, for example, the processing site is the outer peripheral surface of the shaft. The outer peripheral surface of the shaft can be roughed and finished even in a shape in which the base portion of the shaft is formed continuously with other portions. That is, it is difficult to be restricted by the shape of the processed part.
Further, since the finishing blade and the grinding tool are arranged at intervals of 30 degrees or more with respect to the roughing blade adjacent thereto as the center axis, the finishing blade and the grinding tool are used in finishing processing. When the is brought into contact with the workpiece, it is possible to avoid the rough machining blade from contacting the workpiece as much as possible.

In the composite tool of the present invention, the tool main body includes a spindle mounting portion that is mounted on a spindle of a machine tool, and a blade mounting portion that is integrally formed with the spindle mounting portion and is formed in a disc shape around the spindle mounting portion. The roughing blade and the finishing blade are preferably detachably mounted on the blade mounting portion.
According to this configuration, since the roughing blade and the finishing blade are detachably attached to the blade mounting portion of the tool body, the cutting edge of the roughing blade or the finishing blade is damaged or Even when worn, it can be easily replaced with new roughing and finishing blades.

The machine tool of the present invention includes a machine tool main body including a main shaft, drive means for rotationally driving the main shaft, and at least one control shaft for relatively moving the main shaft and the workpiece, and the drive means and control. A control device that drives and controls the shaft according to a machining program, and a composite tool mounted on the main shaft, wherein any one of the composite tools is used as the composite tool.
According to this configuration, when the driving unit and the control shaft are driven and controlled by the control device, the roughing process to the finishing process can be continuously performed on the workpiece by the composite tool mounted on the main shaft. Therefore, more efficient processing can be realized.

In the machine tool of the present invention, the control shaft includes an X-axis moving mechanism that relatively moves the table on which the workpiece is placed and the main shaft in the X-axis direction, the table on which the workpiece is placed, and the A Y-axis moving mechanism that relatively moves the main axis direction in the Y-axis direction orthogonal to the X-axis; a table on which the workpiece is placed; the main axis; the Z-axis orthogonal to the X-axis direction and the Y-axis direction A Z-axis moving mechanism that relatively moves in a direction, and the table includes a rotary table that rotates the workpiece about an axis parallel to the axis of the main axis. preferable.
According to this configuration, a three-dimensional movement mechanism capable of moving the table on which the workpiece is placed and the main shaft in a three-dimensional direction is configured, and the workpiece is rotated about an axis parallel to the axis of the main shaft. Since the rotating table to be included is also included, the workpiece can be processed into a complicated shape. For example, grooves and protrusions can be processed on the outer periphery of the shaft portion.

The machining method of the present invention is a machining method for machining a workpiece using the above-described complex tool, wherein the complex tool is rotated about the central axis of the tool body, and the complex tool and the workpiece are Without moving the composite tool while rotating the composite tool in a state in which the workpiece is processed with the cutting tool and the grinding tool of the composite tool is in contact with the work piece. A grinding process for grinding the workpiece with the grinding tool while relatively moving the composite tool and the workpiece.
According to this configuration, the same effect as described in the above-described composite tool can be expected.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<Description of machine tool body>
FIG. 1 is a front view showing an embodiment of a machine tool of the present invention.
The machine tool includes a machine tool body 10, a control device 30 that drives and controls the machine tool body 10 according to a machining program, and a composite tool 40 that is attached to the machine tool body 10 and processes a workpiece W as a workpiece. Prepare.

  The machine tool main body 10 includes a base 11, a table 12 provided on the base 11 so as to be movable in the front-rear direction (X-axis direction), and a work 12 placed on the upper surface thereof, and a pair standing upright on both sides of the base 11. Columns 13A, 13B, a cross rail 14 spanned between the upper portions of both columns 13A, 13B, and a saddle 15 provided so as to be movable in the left-right direction (Y-axis direction) along the cross rail 14. The saddle 15 is provided with a turning saddle 16 that constitutes a tilting mechanism that can be turned around an A axis parallel to the X axis, and the turning saddle 16 is provided so as to be movable up and down (Z-axis direction). The ram 17 includes a ram 17, a main shaft 18 rotatably accommodated in the ram 17, and driving means 19 that rotationally drives the main shaft 18. The X axis, the Y axis, and the Z axis are orthogonal to each other.

  The base 11 is provided with an X-axis moving mechanism 21 that moves the table 12 in the X-axis direction, and the cross rail 14 is provided with a Y-axis moving mechanism 22 that moves the saddle 15 in the Y-axis direction. Is provided with a Z-axis moving mechanism 23 for moving the ram 17 in the Z-axis direction. The X-axis moving mechanism 21, the Y-axis moving mechanism 22, and the Z-axis moving mechanism 23 constitute a control axis. From these three control axes, the table 12 (work W) and the main shaft 18 are moved in a three-dimensional direction. A three-dimensional relative movement mechanism is provided for relative movement.

Further, on the upper surface of the table 12, there is provided a rotary table 24 for rotating the workpiece W around an axis (Z axis) parallel to the axis of the main shaft 18, and on one column 13A side, a tool storage device is provided. 25 and an ATC (automatic tool changer) 26 are provided.
The tool storage device 25 stores a plurality of different types of tools. An ATC (automatic tool changer) 26 exchanges tools between the tool storage device 25 and the main shaft 18. For example, when the main shaft 18 is moved closer to the left end in FIG. 1 by driving the Y-axis moving mechanism 22 and the Z-axis moving mechanism 23, the tool in use and the tool storage device 25 mounted on the main shaft 18 are used. Automatically change tools.
The control device 30 drives and controls the driving means 19, the X-axis moving mechanism 21, the Y-axis moving mechanism 22, and the Z-axis moving mechanism 23 according to a preset machining program.

<Description of composite tool>
FIG. 2 is a perspective view of the composite tool 40, and FIG. 3 is a plan view of the composite tool 40.
The composite tool 40 includes a tool body 41 having a central axis, and a plurality of types of processing tools (roughing blade 45, finishing blade 46, and grinding tool 47) provided on the outer periphery of the tool body 41.
The tool body 41 is formed in a disk shape with a tapered shank portion 42 that is integrally formed at the lower end of the tapered shank portion 42 as a spindle mounting portion that is mounted on the spindle 18 of the machine tool. The blade mounting part 43 is provided. A storage hole 43A is radially opened at a predetermined angular position on the outer peripheral surface of the blade mounting portion 43, and a roughing blade 45 and a finishing blade 46 are detachably mounted in the storage hole 43A. That is, the roughing blade 45 and the finishing blade 46 are detachably mounted on the blade mounting portion 43 by several bolts 44 and the like.

The processing tool includes a roughing blade 45 and a finishing blade 46 as a cutting tool, and a grinding tool 47.
The rough machining blade 45, the finishing machining blade 46, and the grinding tool 47 are arranged at constant angular intervals (60-degree intervals) on one outer surface of the blade mounting portion 43 and in the same plane perpendicular to the central axis. Is arranged. Here, a roughing blade 45 is disposed at 0 °, 120 °, 180 °, and 300 ° positions, a finishing blade 46 is disposed at a 60 ° position, and a grinding tool 47 is disposed at a 240 ° position. Yes. Therefore, the finishing blade 46 and the grinding tool 47 are arranged 180 ° apart from each other, and are arranged 60 ° apart from the adjacent roughing blade 45 around the central axis.

The rough machining blade 45 has a blade body portion 45A mounted in the storage hole 43A of the blade mounting portion 43 of the tool body 41, and a blade edge portion 45B fixed to the tip of the blade body portion 45A. The blade edge portion 45B has a tip (blade edge) that is located a predetermined distance r away from the central axis of the tool body 41 in a direction orthogonal to the central axis, as shown in FIG. It is formed in a trapezoidal shape with a narrow tip as viewed from the anti-cutting rotation direction.
In the same manner as the roughing blade 45, the finishing blade 46 also has a blade body portion 46A mounted in the storage hole 43A of the blade mounting portion 43 of the tool body 41, and a blade edge fixed to the tip of the blade body portion 46A. Part 46B. The cutting edge portion 46B has a tip (cutting edge) positioned on the inner side of a circumference having a radius r from the central axis of the tool body 41 to the cutting edge of the roughing blade 45, and FIG. As shown in FIG. 2, the rough cutting blade 45 is formed in a trapezoidal shape slightly larger than the contour shape of the cutting edge portion 45B. That is, it is formed in a trapezoidal shape that is larger by the finishing machining allowance α than the contour shape of the cutting edge portion 45B of the rough machining blade 45.

As shown in FIG. 5, the grinding tool 47 includes an air motor 51 provided in the tool body 41 and configured to be rotatable about an axis substantially orthogonal to the center axis of the tool body 41, and the tip of the air motor. And a grindstone 62 attached through a shaft 61.
The air motor 51 includes a rotating cylinder 52 that is rotatably housed in a housing hole 43 </ b> A formed in the tool body 41. The rotary cylinder 52 has a distal end closed, a proximal end opened, and a flange portion 53 on the distal end side outer periphery and the proximal end outer periphery. As shown in FIG. 6, a plurality of air discharge holes 54 are formed in a spiral shape on the outer peripheral surface of the rotating cylinder 52 excluding the flange portion 53. Further, as shown in FIG. 7, a plurality of air discharge holes 55 are radially formed in the flange portion 53, and an ejection hole 56 for injecting air toward the tool body 41 is formed at the tip thereof.

  An air supply path 41A connected to an air source (such as a compressor) is formed at the center of the tool body 41, and air is supplied into the rotary cylinder 52 of the grinding tool 47 through the air supply path 41A. . The air supplied into the rotary cylinder 52 of the grinding tool 47 is discharged from a plurality of air discharge holes 54 formed on the outer peripheral surface of the rotary cylinder 52, and passes through the ejection holes 56 from the air discharge holes 55. After being discharged toward 41, it is discharged to the outside through the exhaust hole 57. At this time, since the plurality of air discharge holes 54 formed in the outer peripheral surface of the rotary cylinder 52 are formed in a spiral shape, the rotary cylinder 52 is moved at a high speed by the rotational force when the air is discharged from the air discharge holes 54. It is rotated by.

  The grindstone 62 is formed in a truncated cone shape whose tip is smaller in diameter than the base end, that is, in a trapezoidal shape with the tip narrowed when viewed from the anti-cutting rotation direction. That is, it is formed in a trapezoidal shape slightly larger than the finishing blade 46.

<Description of processing example>
(Description of work machining example 1)
The workpiece machining example 1 is a case where a V-groove is machined on the side surface of the workpiece W. In this processing, after rough processing (rough processing step) is performed with the rough processing blade 45, finishing processing (finish processing step) is performed with the finishing blade 46.
In the roughing process, as shown in FIG. 8, the composite tool 40 is rotated about the central axis of the tool body 41 by the rotation of the main shaft 18, and the roughing blade 45 is cut into the workpiece W by a predetermined depth. In the state where the amount is reached, the composite tool 40 and the workpiece W are relatively moved. Here, the main shaft 18 is moved in the X-axis direction. Then, the workpiece W is roughly processed by the roughing blade 45. At this time, the tips of the finishing machining blade 46 and the grinding tool 47 are located on the inner side of the circumference having a radius r from the center axis of the tool body 41 to the cutting edge of the rough machining blade 45. Even if the composite tool 40 is rotated to perform rough machining, the finishing blade 46 and the grinding tool 47 do not contact the workpiece W.

In the finishing process, the finishing blade 46 of the composite tool 40 is brought into contact with the workpiece W as shown in FIG. In this state, the finishing blade 46 is disposed at an interval of 60 degrees around the central axis with respect to the roughing blade 45 adjacent thereto, so that the finishing blade 46 is moved to the workpiece during finishing. When brought into contact with W, the rough machining blade 45 can be kept out of contact with the workpiece W.
The composite tool 40 and the workpiece W are moved relative to each other without rotating the composite tool 40 with the finishing blade 46 in contact with the workpiece W. Here, the main shaft 18 is moved in the X-axis direction without rotating the composite tool 40. Then, the work W is flattened by the finishing blade 46. At this time, since the composite tool 40 is not rotating, the roughing blade 45 does not come into contact with the workpiece W, so that the workpiece W is finished by the finishing blade 46.
Accordingly, since the single machining tool 40 can perform roughing to finishing without changing the tool, the working efficiency can be improved.

(Description of workpiece machining example 2)
The workpiece processing example 2 is an example in which the finishing process is performed by the grinding tool 47 in the workpiece processing example 1.
In the finishing process, as shown in FIG. 10, the grindstone 62 of the grinding tool 47 of the composite tool 40 is brought into contact with the roughly worked workpiece W. In this state, since the grindstone 62 is arranged at an interval of 60 degrees with respect to the rough machining blade 45 adjacent thereto as a center, the grindstone 62 is brought into contact with the workpiece W during the finishing process. In addition, the roughing blade 45 can be kept out of contact with the workpiece W.
The composite tool 40 and the workpiece W are relatively moved without rotating the composite tool 40 while the grindstone 62 is in contact with the workpiece W. Here, the spindle 18 is moved in the X-axis direction while rotating the grindstone 62 by the air motor 51 without rotating the composite tool 40. Then, the workpiece W is ground by the grindstone 62. At this time, since the composite tool 40 is not rotating, the roughing blade 45 does not come into contact with the workpiece W, so that the workpiece W is finished by the grindstone 62.
Accordingly, since the single machining tool 40 can perform roughing to finishing without changing the tool, the working efficiency can be improved.

(Explanation of workpiece machining example 3)
The workpiece machining example 3 is a case where a V-shaped spiral groove is cut on the peripheral surface of the cylindrical workpiece W. In this processing, first, as shown in FIG. 11, the turning saddle 16 is turned so that the main shaft 18 is inclined with respect to the Z axis by the inclination angle of the spiral groove 71 to be processed on the outer periphery of the workpiece W. In this state, after the spiral groove 71 is roughly machined (rough machining process) on the outer periphery of the workpiece W, a finishing process (finishing process) is performed.

In the roughing process, as shown in FIG. 12, the composite tool 40 is rotated about the central axis of the tool body 41 by the rotation of the main shaft 18, and the roughing blade 45 is cut into the workpiece W by a predetermined depth. In the state where the amount is reached, the composite tool 40 and the workpiece W are relatively moved. That is, in response to a command from the control device 30, the rotary table 24 is rotated and the ram 17 is moved in the Z-axis direction. Here, the rotary table 24 is rotated in the direction opposite to the rotation direction of the main shaft 18.
Then, the spiral groove 71 is roughly machined on the outer periphery of the workpiece W by the rough machining blade 45. At this time, since the rotary table 24 rotates in the direction opposite to the rotation direction of the main shaft 18, the occurrence of burrs can be suppressed. Further, the tip of the finishing machining blade 46 is positioned on the inner side of the circumference having a radius r from the central axis of the tool body 41 to the cutting edge of the rough machining blade 45, so that the composite tool 40 is rotated. Even if rough machining is performed, the finishing blade 46 does not contact the workpiece W.

In the finishing process, the finishing blade 46 of the composite tool 40 is brought into contact with the workpiece W as shown in FIG. At this time, the finishing blade 46 is disposed at an interval of 60 degrees about the central axis with respect to the adjacent roughing blade 45, so that the finishing blade 46 is moved to the workpiece W during finishing. The rough machining blade 45 can be kept out of contact with the workpiece W when being brought into contact with the workpiece W.
While the finishing blade 46 is in contact with the workpiece W, the rotary table 24 is rotated (in the opposite direction to the rotation direction during rough machining) without rotating the composite tool 40 according to a command from the control device 30. The ram 17 is moved in the Z-axis direction. Then, the spiral groove 71 roughly processed on the outer periphery of the workpiece W is finished by the finishing blade 46. At this time, since the composite tool 40 is not rotating, the roughing blade 45 does not come into contact with the workpiece W, so that the workpiece W is finished by the finishing blade 46.
Even in this processing example 3, since the roughing and finishing can be processed with one composite tool 40 without changing the tool, the working efficiency can be improved.

(Description of workpiece machining example 4)
The workpiece processing example 4 is an example in which the finishing process is performed by the grinding tool 47 in the workpiece processing example 3.
In the finishing process, the grindstone 62 of the composite tool 40 is brought into contact with the workpiece W as shown in FIG. At this time, since the grindstone 62 is disposed at an interval of 60 degrees about the central axis with respect to the adjacent rough machining blade 45, when the grindstone 62 is brought into contact with the workpiece W during finishing processing. The rough machining blade 45 can be kept out of contact with the workpiece W.
With the grindstone 62 in contact with the workpiece W, the grindstone 62 is rotated by the air motor 51 according to a command from the control device 30. In this state, without rotating the composite tool 40, the rotary table 24 is rotated (rotated in a direction opposite to the rotation direction during rough machining) and the ram 17 is moved in the Z-axis direction. Then, the spiral groove 71 roughly processed on the outer periphery of the workpiece W is finished by the grindstone 62. At this time, since the composite tool 40 is not rotating, the roughing blade 45 does not come into contact with the workpiece W, so that the workpiece W is finished by the grindstone 62.
Also in this processing example 4, since one machining tool 40 can perform roughing to finishing without changing tools, work efficiency can be improved.

<Modification>
It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
In the above-described embodiment, the example in which the cutting edge surfaces of the four roughing blades 45 and the finishing blade 46 are all arranged in the same rotational direction has been described, but the present invention is not limited thereto. For example, as shown in FIG. 15, in contrast to the above embodiment, four roughing blades 45 may be arranged so that the cutting edge faces in the clockwise direction, and one finish is performed. The cutting edge surfaces of the processing blades 46 may be opposite to the cutting edge surfaces of the four rough machining blades 45.

Further, the number of rough machining blades 45 and the number of finishing machining blades 46 are not limited to the above embodiment. For example, the roughing blade 45 and the finishing blade 46 may be provided in any number as long as it is at least one.
For this reason, the arrangement angle between the finishing blade 46 and the grinding tool 47 and the roughing blade 45 adjacent thereto is not limited to the configuration in which the finishing blade 46 and the grinding tool 47 are arranged 60 ° apart. In a state where the finishing machining blade 46 and the grinding tool 47 are in contact with the workpiece W, the angle may be such that the rough machining blade 45 does not contact the workpiece W, for example, 30 ° or more.

  The X-axis moving mechanism 21 moves the table 12 in the X-axis direction, the Y-axis moving mechanism 22 moves the saddle 15 in the Y-axis direction, and the Z-axis moving mechanism 23 moves the ram 17 in the Z-axis direction. However, the present invention is not limited to this. For example, the X-axis moving mechanism 21, the Y-axis moving mechanism 22, and the Z-axis moving mechanism 23 may be any mechanism that relatively moves the table 12 and the main shaft 18 (composite tool 40) in the three-dimensional direction.

  In the above-described embodiment, the example in which the V groove is processed on the side surface of the workpiece W and the example in which the spiral groove is processed on the outer peripheral surface of the cylindrical workpiece have been described. For example, as shown in FIG. 16, an example in which a V-groove 72 is processed on the outer peripheral surface of a cylindrical workpiece W, or a trapezoidal protrusion 73 can be processed on a flat portion of the workpiece W.

  INDUSTRIAL APPLICABILITY The present invention can be used for a composite tool, a machine tool, and a processing method that can perform roughing and finishing of a workpiece with a single tool.

The front view which shows the machine tool which concerns on embodiment of this invention. The perspective view which shows the composite tool used in the said embodiment. The top view which shows the said composite tool. The figure which shows the roughing blade and finishing blade of the said composite tool. Sectional drawing which shows the part of the grinding tool of the said composite tool. FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. FIG. 7 is a sectional view taken along line VII-VII in FIG. 5. The figure which shows the state which is performing roughing with the blade for roughing of the said composite tool. The figure which shows the state which is finishing with the blade for finishing of the said composite tool. The figure which shows the state which is finishing with the grinding tool of the said composite tool. The figure which shows the state which is processing the spiral groove with the said composite tool. The figure which shows the state which is carrying out the rough process of the spiral groove with the blade for rough processes of the said composite tool. The figure which shows the state which is finishing the spiral groove with the finishing blade of the said composite tool. The figure which shows the state which finishes the spiral groove with the grinding tool of the said composite tool. The perspective view which shows the modification of the composite tool of the said embodiment. The figure which shows the process example of a workpiece | work.

Explanation of symbols

10 ... Machine tool body,
12 ... table,
16 ... turning saddle (tilting mechanism),
18 ... Spindle,
19: Drive mechanism,
21 ... X-axis moving mechanism (control axis),
22 ... Y-axis moving mechanism (control axis),
23 ... Z axis moving mechanism (control axis),
24 ... rotating table,
30 ... Control device,
40 ... Composite tool,
41 ... Tool body,
42 ... taper shank (main shaft mounting part),
43 ... blade mounting part,
45 ... Roughing blade,
46: Finishing blade,
47. Grinding tool,
51 ... Air motor,
61 ... shaft,
62 ... Whetstone,
W ... Work

Claims (8)

A tool body having a central axis, and a plurality of types of processing tools provided on the outer periphery of the tool body,
The plurality of types of processing tools include a cutting tool and a grinding tool,
The cutting tool and the grinding tool are arranged radially about the central axis of the tool body,
The grinding tool is located on the inner side of a circumference whose radius is a distance from the central axis of the tool body to the cutting edge of the cutting tool, and is centered on an axis substantially orthogonal to the central axis of the tool body. A composite tool characterized by being configured to be rotatable. The composite tool according to claim 1,
The grinding tool is provided on the tool body and is configured to be rotatable about an axis substantially orthogonal to the center axis of the tool body, and attached to the tip of the air motor via a shaft. A composite tool comprising a grindstone. The composite tool according to claim 1,
The cutting tool includes a roughing blade and a finishing blade,
At least one roughing blade is provided on the outer periphery of the tool body, and the tip of the roughing blade is separated from the central axis of the tool body by a predetermined distance in a direction perpendicular to the central axis. Located
At least one finishing blade is provided on the outer periphery of the tool body, and the tip of the finishing blade has a radius from the center axis of the tool body to the cutting edge of the roughing blade. A composite tool characterized in that the composite tool is located on the inner side of the circumference. The composite tool according to claim 3,
The roughing blade, the finishing blade and the grinding tool are arranged in one plane perpendicular to the central axis,
The composite tool characterized in that the finishing blade and the grinding tool are arranged at an interval of 30 degrees or more about the central axis with respect to the adjacent roughing blade. In the composite tool according to any one of claims 1 to 4,
The tool body includes a spindle mounting portion mounted on a spindle of a machine tool, and a blade mounting portion formed integrally with the spindle mounting portion and formed in a disk shape around the spindle mounting portion.
The rough cutting blade and the finishing blade are detachably mounted on the blade mounting portion. A machine tool body comprising a main shaft, drive means for rotationally driving the main shaft, and at least one control shaft for relatively moving the main shaft and the workpiece;
A control device for driving and controlling the driving means and the control shaft according to a machining program;
A composite tool mounted on the spindle,
The machine tool according to any one of claims 1 to 5, wherein the composite tool is the composite tool according to any one of claims 1 to 5. The machine tool according to claim 6,
The control axis includes an X-axis moving mechanism for relatively moving the table on which the workpiece is placed and the main shaft in the X-axis direction, and the table on which the workpiece is placed and the main axis direction on the X-axis. A Y-axis moving mechanism that relatively moves in the Y-axis direction perpendicular to the Z-axis, and a Z-axis that moves relative to the table, the main shaft, the X-axis direction, and the Z-axis direction perpendicular to the Y-axis direction. Including a moving mechanism,
The machine tool is characterized in that it includes a rotary table that rotates the workpiece about an axis parallel to the axis of the main shaft. In the processing method which processes a workpiece using the compound tool according to any one of claims 1 to 5,
A cutting process of processing the workpiece with the cutting tool while rotating the composite tool around the central axis of the tool body and relatively moving the composite tool and the workpiece;
While the composite tool and the workpiece are moved relative to each other without rotating the composite tool while the grinding tool of the composite tool is in contact with the workpiece, the workpiece is moved by the grinding tool. And a grinding process step for grinding.

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