JPH0852634A - Combined processing equipment - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Improvement of processing equipment applied to combined machining of hole machining and surface machining of various sizes [Configuration] The compound machining equipment is a bush in which a hole machining tool R is fitted. Tool exchange for exchanging hole machining tool R with bush B while mounting a surface machining tool on a spindle having a bush insertion hole for detachably mounting B and a chuck for detachably gripping the hole machining tool. The apparatus A is provided. The tool changer A is provided on the support beam portion 8 provided on the front surface of the combined machining apparatus so as to extend in the main axis direction on the base body that is driven to advance and retreat in the radial direction with respect to the main axis. A bush support 10 having a support plate extending in the direction of the main axis for positioning the position in the rotational direction, a tool holding moving head 9,
The tool holding member (17) is provided on the tool holding moving head so as to elastically press the hole drilling tool in the main axis direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite machining device, and more particularly to a composite machining device equipped with a tool exchanging device for exchanging a combination of two kinds of coaxial cutting tools.

[0002]

2. Description of the Related Art For example, in the machining of a valve seat surface of a cylinder head and the finishing of a stem guide hole, the precision of coaxiality is important. In the technology, Japanese Patent Laid-Open No. 62-
As described in Japanese Patent No. 271613, the valve seat surface processing tool and the stem guide hole processing reamer are mounted on the same main shaft to perform the valve seat surface processing and the stem guide hole processing at the same time.

[0003]

As described above, when the reamer and the valve seat surface processing tool are mounted on the same main spindle and the valve seat surface processing and the stem guide hole processing are performed simultaneously, various types of processing are required. When machining a cylinder head,
It is necessary to prepare special tools for various combinations of reamers and valve seat surface processing tools that correspond to various workpieces, and perform special processing using them. As a result, the cost is high and the work efficiency of the tool change is reduced. It is an object of the present invention to provide a machine tool that solves the above problems by performing machining with two types of coaxial cutting tools corresponding to various workpieces.

[0004]

According to the combined machining apparatus of the present invention, a surface machining tool is mounted on a main shaft having a bush insertion hole for detachably mounting a bush fitted with a hole machining tool, and the hole machining tool is mounted on the spindle. A chuck for removably holding a machining tool is provided, and a tool exchanging device for exchanging the hole machining tool together with the bush is provided.

The tool changer includes: (a) a base body which is driven forward and backward in the radial direction with respect to the main spindle on the front surface of the composite machining apparatus; a support beam portion provided on the base body so as to extend in the main shaft axis direction of the composite machining apparatus; (B) The outer peripheral surface of the bush provided on the support beam portion and fitted with the hole drilling tool so as to align the hole drilling tool with the main shaft is supported by the side edges to position the hole drilling tool in the rotational direction. A bush supporting portion having a support plate extending in the spindle axis direction, (c) a tool holding moving head supported by a guide portion of the supporting beam portion so as to be moved in the spindle axis direction, and (d) a tool holding moving head. (E) a bush holding member provided on the tool holding moving head so as to be engageable with and disengageable from the engaging portion of the bush supported by the bush supporting portion, and f) At the tip of the drilling tool Detachably, being and configured to drilling tool from the drilling tool pressing member provided on the tool holding moving head to elastically pressed to the spindle axis direction.

[0006]

When exchanging tools, the base of the tool exchanging device is driven forward from the standby position to the tool exchanging position in the radial direction with respect to the main shaft on the front surface of the combined machining device. At that time, the bush support portion and the hole drilling tool pressing member are located in the position coaxial with the main shaft in front of the main shaft, and the tool pressing moving head is in the most distal position.

A hole drilling tool to be newly mounted, in which a hole drilling tool holding member is set to a detached position from the tip of the hole drilling tool, and a bushing is fitted with a hole drilling tool having a desired thickness and length corresponding to a surface drilling tool. The bush is supported on the side edge of the bush support portion, the position of the bush, that is, the hole drilling tool in the rotational direction is adjusted, and the bush is inserted into the bush insertion hole from the base end side toward the main shaft.

Then, the hole drilling tool holding member is brought into contact with the tip of the hole drilling tool, the bush holding member is engaged with the engaging portion of the bush, and the tool holding moving head is moved to the supporting beam portion by the driving means. It is moved toward the main axis along the guide. Therefore, the hole drilling tool is inserted into the chuck by the hole drilling tool holding member and is pushed into the spindle until the base end reaches the rear end.

Further, when the tool pressing moving head advances until the hole drilling tool pressing member elastically presses the hole drilling tool to the inner end of the main shaft, the bushing is also inserted by the bushing pressing member to the last retracted position. It is pushed into the hole. Then, the chuck is closed on the spindle, and the hole drilling tool is gripped by the chuck. Thus, the new drilling tool is mounted on the spindle.

Then, the bush pressing member is disengaged from the engaging portion of the bush, and the tool pressing moving head is retracted to the standby position by the driving means so as to be separated from the main shaft along the guide portion of the supporting beam portion, and the hole is drilled. The tool holding member separates from the tip of the drilling tool. So the substrate moves away from the main axis,
It becomes the standby position. Thus, desired tooling is performed by the tool newly mounted on the spindle, that is, the tool for drilling and the tool for surface processing. To remove the bushing drilling tool after use from the spindle, leave the chuck open and
The boring tool and bush are released from the spindle and withdrawn from the spindle.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A composite machining apparatus for carrying out machining of a valve seat surface of a cylinder head and finishing machining of a stem guide hole as a composite machining apparatus in an embodiment of the present invention will be described with reference to the drawings. FIG. 4 shows a combined machining apparatus for machining the valve seat surface of the cylinder head and finishing the stem guide hole.
Further, as shown in FIG. 5, the machine body M is provided so as to be fed on the base L in the horizontal X-axis direction (horizontal direction) and the Y-axis direction (spindle axis direction), and the spindle housing 2 is provided on the front surface of the machine body M. It is provided so as to be fed in the Z-axis direction (vertical direction). The spindle housings 2 may be provided in duplicate at intervals in the X-axis direction, if necessary.

The tool changer A shown in FIGS. 1 and 2 is provided on the rear side of the machine body M of the combined machining apparatus and on the upper front side of the support frame 51 which is erected on the columns 50 on both sides. As shown in FIG. 3, a main shaft 30 is rotatably supported by a rolling bearing 31 and is rotatably driven by a built-in motor 32 in a main shaft housing 2 protruding from the front face of a machine body M of the combined machining apparatus. At the tip of the main shaft 30, there is formed a bush insertion hole 33 in the central axis line, which is a substantially conical bite head portion 3.
4 is attached, and a bush B in which a reamer R as a hole machining tool such as a stem guide hole is fitted into the bush insertion hole 33 is detachably attached.

The bite head 34 has a bush insertion hole 33.
A bite 35 as a tool for surface machining such as a valve seat surface is mounted in the vicinity of the opening, and a recess 36 into which the engaging claw 22 (later described) of the tool changing device A can be fitted is formed at the tip. There is. The bush positioning member 37 is urged by a compression coil spring 38 so that a pin portion 37a that releasably engages with the bush B at the rear end of the bush insertion hole 33 protrudes in the radial direction. It is installed in the section 34.

An actuating pipe 41 having a cam pipe 39 following the bush insertion hole 33 of the bite head 34 and a collet chuck 40 for holding the reamer is fitted in the central hole of the main shaft 30 so as to be advanced and retracted. A stopper 42 is formed in the back of the collet chuck 40 to which the base end of the reamer R at the time of mounting abuts. Further, on the inner peripheral surface of the working pipe 41, the reamer R
Is provided with a drive key 43 that engages with an axial key groove S formed on the peripheral surface of the base end side of the
It is pulled rearward by the disc spring group 44, and is engaged with a pushing sleeve 47 screwed with a screw 46 driven by a motor 45 via a rolling bearing 48. That is, the working pipe 41 is
As the pushing-out sleeve 47 advances, it is pressed forward against the spring force of the disc spring group 44.

Due to the forward movement of the operating pipe 41, the cam pipe 39 is
The bush positioning member 37 is displaced to move the pin portion 37a against the spring force of the compression coil spring 38 so that the pin portion 37a of the bush positioning member 37 is pulled in in the radial direction and the collet chuck 40 is opened. . The cam tube 39 releases the bush positioning member 37, causes the pin portion 37a to project by the spring force of the compression coil spring 38, and closes the collet chuck 40 by retracting the operation tube 41.

The cutting tool T for finishing the stem guide hole, which is handled by the tool changing device A shown in FIGS. 1 and 2, and which is mounted on the compound machining device, is a reamer R slidably fitted on the bush B. The tip of the reamer R has a small diameter, a step is formed, and a keyway S in the axial direction is formed on the base end side.

The bush B is shorter than the reamer R and has a flange portion F formed in the vicinity of the tip portion thereof. The flange portion F is provided on three support plates 10a having different thicknesses of the support portion 10 described later. Three notches N having different widths are formed at intervals of 120 degrees so that they can be slidably fitted correspondingly. Further, the base end portion of the bush B is attached to a tool changing device described later, and when the flange portion F comes into contact with the tip end surface of the bite head portion 34, the pin portion 37a of the bush positioning member 37 of the spindle 30 engages. The positioning pin hole H penetrates through the position of the rotation direction and the axial direction which match.

In the tool changer A shown in FIGS. 1 and 2, the substrate 1 is slidable in the vertical direction on the front surface of the mounting base 25 standing on the upper front side of the support frame 51 as shown in FIGS. 4 and 5. Is provided, and a hydraulic cylinder 26 that moves the substrate 1 up and down is provided above the mounting table 25. On the front surface of the substrate 1, a single tool changing device A or a double tool changing device A as shown in FIG. 5 is provided corresponding to the two main spindles 30.

The independent tool changer A will be described below. A tool holder moving head moving member 4 is provided on the front surface of the base plate 1 so as to slide up and down in the Z-axis direction by a hydraulic cylinder 27 attached to the upper portion, and a support guide is provided below the tool pressing moving head moving member 4. A section 3 is provided.

In the support guide portion 3, a guide rail 3b is attached to a base 3a fixed to the front surface of the substrate 1 in the Z-axis direction (perpendicular to the paper surface in FIG. 1, left-right direction in FIG. 2), and guide rail 3b. At both end positions, position adjusting screws 3c, 3c are provided on the base 3a so as to face each other so as to advance and retract in the horizontal direction. A support plate 5 is slidably supported on the guide rail 3b in the X-axis direction, and both end faces of the support plate 5 are sandwiched between the tip ends of the position adjusting screws 3c and 3c.

On the back surface of the support plate 5, main shaft housing holding legs 6 and 6 are attached downward so as to hold the main shaft housing 2 from both sides at intervals in the X axis direction.
A support beam portion 7 is provided on the front surface of the support plate 5 so as to project in the Y-axis direction, a guide rail 8 in the Y-axis direction is attached to the support beam portion 7, and the tip side is downward. It is an extended hanging portion 7a. A tool holding moving head 9 is slidably supported on the guide rail 8.

In order to support the outer peripheral surface of the bush B, in which the reamer R is fitted, from the three sides to the side edges, the hanging portion 7a is provided at radial intervals of 120 degrees including the position directly below and extends in the Y-axis direction. Is provided with a bush support portion 10 composed of three support plates 10a having different thicknesses, and a notch portion N having a different thickness which engages with these support plates 10a is formed in the flange portion F of the bush B. Has been done.

The base end is attached to the tool holding moving head moving member 4 by the universal joint 4a, and the groove hole 11 formed at the tip end.
The bent portion of the crank lever 11 in which a is engaged with the shaft pin 12 provided on the tool holding moving head 9 is pivotally attached to the shaft pin 13a of the support shaft portion 13 provided on the upper front surface of the support plate 5. ing. The arm portion on the front end side of the crank lever 11 is divided into two in order to prevent overload at the time of feeding.
Are flexibly connected with each other, but are temporarily integrated by the engagement of the position holding projection 14b and the notch 14c at the connecting portion.

The reamer pressing member 17 in which a guide rod 15 protruding from the front surface of the tool pressing movement head 9 in the Y-axis direction and a rotation-stopping pin 16 are slidably fitted, and a knob bolt 19 is planted in the radial direction, is used. The compression coil spring 18 fitted between the tip of the guide rod 15 and the reamer pressing member 17 is pressed so as to retract toward the front surface of the tool pressing moving head 9, and the lower end protruding portion 20 is attached. Reamer R of Time
It comes into contact with the stepped portion at the tip of the.

The head 21a of the bush pressing member 21 is fitted to the tool pressing moving head 9 so as to be slidable up and down and is elastically urged downward by a spring in the tool pressing moving head 9.
Is adapted to project from the upper surface of the tool pressing moving head 9 and engage with a pulling member 23 described later. The lower end portion of the bush pressing member 21 projects from the lower surface of the tool pressing moving head 9 so that the bush of the reamer R is Engaging claws 22 that engage with the flange portion F of B are formed.

On the front surface of the support plate 5, there is provided a vertically moving hydraulic cylinder 24 in which a pulling member 23 for the bush pressing member 21 is attached to the lower end of the piston rod. The pulling member 23 is formed so as to hold the head portion 21a of the bush pressing member 21 from both sides.
The engagement of the head portion 21a of the head 21a by the displacement in the Y-axis direction is allowed, and at the time of engagement, the bush pressing member 21 is lifted by the hydraulic cylinder 24 to raise the pulling member 23.
Thus, the engaging claw 22 is pulled up so as to be disengaged from the flange portion F of the bush B.

The operation and action of the tool changing device of the above-described combined machining device will be described. The machine body M of the combined machining apparatus is moved and positioned along the X axis at a position where the spindle 30 faces the tool changer A. First, in the main shaft 30, first, the motor 45 is driven to move the pushing sleeve 47 screwed into the screw 46 forward, and as a result, the actuating tube 41 is pushed forward against the spring force of the disc spring group 44. To the state

By doing so, the collet chuck 4
0 is in the open state, the cam tube 39 rotationally displaces the bush positioning member 37, and the pin portion 37a resists the spring force of the compression coil spring 38 and the bush positioning member 37.
Of the pin portion 37a is retracted in the radial direction.

When exchanging tools, the hydraulic cylinder 26 of the mounting base 25 is operated to slide the substrate 1 from the upper standby position downward to the tool exchange position. At that time, the bush adjusting portion 10 and the reamer pressing member 17 are preliminarily arranged so that they are coaxial with the main shaft 30 in front of the main shaft 30.
The positions of the support plate 5 are adjusted in the X-axis direction by adjusting c and 3c. Therefore, when the board 1 is lowered, the spindle housing holding leg 6 engages with the projected spindle housing 2 from above, and holds the spindle housing 2 from both sides at a position below the board 1.

By the operation of the hydraulic cylinder 27, the tool pressing movement head moving member 4 is located at the lowest position. That is, the tool pressing movement head 9 is located at the most distal end position by the clockwise rotation in FIG. 1 around the shaft pin 13a of the crank lever 11. The knob bolt 19 is operated to displace the reamer pressing member 17 against the spring force of the compression coil spring 18, remove the reamer pressing member 17, remove the anti-rotation pin 16, rotate about the guide rod 15, and center the lower end protruding portion 20. Remove from the line.

Therefore, various sizes (thickness / length) are inserted into the bush B having a predetermined outer diameter corresponding to the bush insertion hole 33 with respect to one bite head 34 mounted on the main shaft 30. Reamer R, that is, various hole drilling tools T are prepared. Bushing B with various sizes of reamers R inserted
Since the outer diameter of is constant. It can be attached to a single bite head 34. Further, instead of the reamer R, another hole drilling tool such as a drill may be used.

A reamer R having a desired thickness and length inserted into a bush B corresponding to the bite head portion 34 is supported from the base end side toward the main shaft 30 toward the support plates 10a, 10a, 10a.
Insert it between the inner edges of the. Then, when the base end of the reamer R enters the bush insertion hole 33 of the bite head portion 34 and the flange portion F of the bush B reaches the front ends of the support plates 10a, 10a, 10a, the position of the reamer R in the rotational direction is adjusted. Each notch portion N of the flange portion F has a corresponding thickness with the corresponding support plate 10a. Thereby reamer R
The key groove S at the base of is engaged with the drive key 43 in the main shaft 30 and is set at a circumferential position.

Then, the knob bolt 19 is operated again to displace the reamer pressing member 17 and fit it to the rotation stop pin 16, so that the reamer pressing member 17 is at the center line position.
The lower end protruding portion 20 of the reamer R is brought into contact with the step portion at the tip of the reamer R. At that time, the compression coil spring 18 is in an expanded state with no load. At the same time, after pulling up the bush pressing member 21 against the spring force, the engagement claw 22 is pressed and engaged by the spring force toward the flange portion F of the bush B which has just reached the engagement claw 22. release.

Then, the tool pressing moving head moving member 4
When the hydraulic cylinder 27 is moved up, the crank lever 11 rotates counterclockwise in FIG. 1 about the shaft pin 13a. Then, the tool presser moving head 9
Slides along the guide rail 8 toward the spindle housing 2. Therefore, the reamer R has the bush pressing member 21.
Is inserted into the collet chuck 40 by the lower end projecting portion 20 (see FIG. 6), further advances in the operation pipe 41 of the collet chuck 40, the key groove S engages with the drive key 43 in the main shaft 30, and the base end is Spindle 30 until pressed by stopper 42
It is pushed in (see Fig. 7).

Further, while the compression coil spring 18 is being compressed, the tool pressing movement head 9 is sliding, and the reamer R is pressed at its base end against the stopper 42 by the spring force of the compression coil spring 18, and the bush B is The flange portion F approaches the bite head portion 34 by the engaging claw 22 of the bush pressing member 21 (see FIG. 8), and eventually the flange portion F
Is pushed into the bush insertion hole 33 of the cutting tool head 34 until it contacts the tip surface of the cutting tool head 34. that time,
Since the engaging claws 22 enter the recesses 36, there is no hindrance to the contact of the flange portion F. When the flange portion F is in contact with the tip surface of the bite head portion 34, the positioning pin hole H is located at a position facing the pin portion 37a of the bush positioning member 37 (see FIG. 9).

In this state, the head portion 21a of the bush pressing member 21 of the tool pressing moving head 9 is located in the position engaging with the pulling member 23 in the Y axis direction. If the insertion of the tool T into the spindle 30 is blocked by some obstacle, if the reamer pressing member 17 continues to move forward, the tool T or the like may be damaged. In that case, in the crank lever 11, the protrusion 14b is disengaged from the notch 14c, the shaft pin 14a of the crank lever 11 is bent, and the forward movement of the reamer pressing member 17 is stopped.

Then, in the main shaft 30, the motor 45 is driven in the reverse direction so that the pushing sleeve 4 screwed into the screw 46.
7 is retracted, and as a result, the actuating tube 41 is retracted by the spring force of the disc spring group 44. Then, the reamer R uses the spring force of the compression coil spring 18 to stop the stopper 42 at the bottom of the operation pipe 41.
The collet chuck 40 closes, grips the reamer R, and when the working tube 41 is retracted, the cam tube 39 is also integrally retracted.
The bush positioning member 37 is released and rotated by the compression coil spring 38, the pin portion 37a projects and engages with the positioning pin hole H of the bush B, and the bush B is positioned and held. (See FIG. 10) Thus, the new tool T is mounted on the spindle 30.

Then, the hydraulic cylinder 24 is actuated, the pulling member 23 is pulled up, engages with the head portion 21a of the bush pressing member 21, and pulls up and engages against the spring force of the bush pressing member 21. The claw 22 is detached upward from the flange portion F of the bush B. Next, the hydraulic cylinder 2
When the tool pressing movement head moving member 4 is moved down by operating 7, the crank lever 11 rotates in the clockwise direction in FIG. 1 about the shaft pin 13a.

Then, the tool holding moving head 9 is retracted along the guide rail 8 so as to be separated from the spindle housing 2, and the lower end projecting portion 20 of the reamer holding member 17 is separated from the step portion at the tip of the reamer R. Therefore, the hydraulic cylinder 26 of the mounting base 25 is operated to slide the board 1 upward to the upper standby position. The main shaft housing holding leg 6 is separated upward from the main shaft housing 2. The hydraulic cylinder 24 operates to release the pulling member 23, and the bush pressing member 21
Is pushed downward by the spring force.

Thus, the machine body M of the combined machining apparatus is moved and positioned along the X axis at a position where the spindle 30 faces the workpiece, the spindle 30 is rotationally driven by the built-in motor 32, and the spindle housing 2 faces the machining location. To the position where the tool is moved in the Z-axis direction, is sent in the Y-axis direction, and is newly mounted on the spindle 30 as a replacement, that is, the reamer R and the bite 35.
A desired hole is formed by and. When removing the reamer R with bush after use from the spindle 30, use the motor 4
5 is driven to push the extrusion sleeve 4 screwed into the screw 46.
7 moves forward, and as a result, the actuating pipe 41 is pressed forward against the spring force of the disc spring group 44.

By doing so, the collet chuck 4
0 is in the open state, the cam tube 39 rotationally displaces the bush positioning member 37, and the pin portion 37a resists the spring force of the compression coil spring 38 and the bush positioning member 37.
The pin portion 37a is pulled in in the radial direction and separated from the bush B. Therefore, the reamer R and the bush B are
Is released from 0, and the main shaft 30
Pulled out of.

[0042]

According to the combined machining apparatus of the present invention, when the hole machining tool and the surface machining tool are mounted on the same spindle and the compound machining of the hole machining tool and the surface machining tool is simultaneously performed, With respect to the surface processing tool mounted on the spindle, the hole processing tools of various dimensions (thickness / length) can be exchanged together with the bushes and mounted to support multi-dimensional complex machining. Therefore, it is not necessary to prepare various combinations of dedicated tools for coping with complex machining of various sizes, and it is possible to reduce equipment and machining costs. Moreover, since the exchanging of the drilling tool is performed by the tool exchanging device, the work of attaching / detaching the dedicated tools of the various combinations described above to / from the spindle is not performed by the operator.
Therefore, the work efficiency of tool exchange can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a tool changing device of a combined machining apparatus according to an embodiment of the present invention.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a cross-sectional view of a spindle tip portion of a combined machining apparatus according to an embodiment of the present invention.

FIG. 4 is a side view of the combined machining apparatus according to the embodiment of the present invention.

FIG. 5 is a front view of the combined machining apparatus according to the embodiment of the present invention.

FIG. 6 is an operation explanatory view (1) of the tool changing device of the combined machining apparatus according to the embodiment of the present invention.

FIG. 7 is an operation explanatory view (2) of the tool changing device of the combined machining device according to the embodiment of the present invention.

FIG. 8 is an operation explanatory view (3) of the tool changing device of the combined machining device according to the embodiment of the present invention.

FIG. 9 is an operation explanatory view (4) of the tool changing device of the combined machining apparatus according to the embodiment of the present invention.

FIG. 10 is an operation explanatory view (5) of the tool changing device of the combined machining apparatus according to the embodiment of the present invention.

[Explanation of symbols]

A tool changer 1 substrate 2 spindle housing 3 support guide 3a base 3b, 8 guide rail 3c position adjusting screw 4 tool presser moving head moving member 4a universal joint 5 support plate 6 spindle housing holding leg 7 support beam 7a hanging part 9 Tool presser moving head 10 Bush support 10a Support plate 11 Crank lever 11a Groove hole 12, 13a, 14a Shaft pin 13 Support shaft part 14b Projection 14c Notch 15 Guide rod 16 Lock pin 17 Reamer presser member 18, 38 Compression coil spring 19 Knob bolt 20 Lower end protruding portion 21 Bush pressing member 21a Head 22 Engaging claw 23 Lifting member 24, 26, 27 Hydraulic cylinder 25 Mounting base 30 Spindle 31 Rolling bearing 32 Built-in motor 33 Bush insertion hole 34 Byte head 35 bytes 36 Recess 37 Bush positioning Material 37a Pin portion 39 Cam tube 40 Collet chuck 41 Actuating tube 42 Stopper 43 Drive key 44 Disc spring group 45 Motor 46 Screw 47 Extrusion sleeve 48 Rolling bearing 50 Strut 51 Support frame T Cutting tool B Bush R Reamer F Flange portion N Notch Part H Positioning pin hole M Airframe L base

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadahiko Oya 1-1-1 Asahi-cho, Kariya city, Aichi Toyota Koki Co., Ltd. (72) Inventor Kazuo Toda 1-1-1 Asahi-cho, Kariya city, Aichi Toyota Koki Incorporated (72) Inventor Takefusa Sasamori 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Co., Ltd. (72) Inventor Hiroki Kawaura 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Co., Ltd.

Claims (1)

[Claims] 1. A spindle for forming a bushing insertion hole for removably mounting a bush into which a hole drilling tool is mounted is provided with a surface machining tool, and a chuck for removably gripping the hole drilling tool is provided, A composite machining apparatus comprising a tool exchanging device for exchanging the hole machining tool together with the bush, wherein the tool exchanging device comprises: (a) a base body that is driven forwards and backwards in a radial direction with respect to a spindle on a front surface of the complex machining device; A support beam portion provided on the base body so as to extend in the main axis direction of the combined machining apparatus, and (b) a bush provided on the support beam portion and fitted with the hole drilling tool so as to align the hole drilling tool with the spindle. Bush support with outer peripheral surface supported by side edges and with a support plate extending in the spindle axis direction for positioning the rotational direction of the hole drilling tool, (c) Moving in the spindle axis direction to the guide part of the support beam Supported to get Tool holder moving head, (d)
Drive means for moving the tool holding moving head along the guide portion of the supporting beam portion, (e) Bush holding provided on the tool holding moving head so as to freely engage and disengage with the engaging portion of the bush supported by the bush supporting portion. A member and (f) a hole drilling tool holding member provided on the tool holding moving head so as to be freely engageable with and disengageable from the tip of the hole drilling tool and elastically press the hole drilling tool in the axial direction of the spindle. Combined processing equipment that is characterized by