JPS61260969A - Combined processing device - Google Patents

Abstract

PURPOSE:To increase the kind of processing workpieces by a system wherein a workpiece clamped to a retaining mechanism at a workpiece handling station is transferred to each processing station through the angular displacement of a supporter, and exposed to a series of processes in the course of turning with a drive unit coupled to the retaining mechanism. CONSTITUTION:At a workpiece handling station S1, a workpiece W is temporarily clamped to a workpiece retaining mechanism 21. By an index drive means 9, a supporter 8 is driven for 90 deg. displacement and shifted to a machining station S2 where a clamping rod is connected to a carrier and a clamp rod is connected to a movable, thereby clamping properly the workpiece W to said mechanism 21. Then, a drive motor is operated to put the workpiece W in a temporary clamping condition after the finish of its machining. In this state, said drive means 9 works to cause the 90 deg. displacement of the supporter 8 and the workpiece W is shifted to a primary bore processing station S3. After the finish of bore processing, the workpiece W is transferred to a secondary bore processing station S4. After the completion of processing, the workpiece W is shifted to the handling station S1 and the temporary clamping thereof is released for discharge, with a robot retaining the workpiece W.

Description

[Detailed description of the invention] A0 Purpose of invention (1) Industrial application fields The present invention relates to a composite processing device.

(2) Conventional technology Conventionally, as a compound processing device, for example,
As disclosed in Japanese Patent No. 59680, a workpiece is mounted on a rotary table, the rotary table is indexed and rotated, and the workpieces are sequentially processed using various processing machines fixedly arranged outside the rotary table. What has been done is known.

(3) Problems to be Solved by the Invention However, in the above-mentioned conventional machines, the workpiece is fixed to a rotary table, so the processing machine for processing the workpiece must have a rotating cutting tool such as a drill or a milling cutter. Therefore, the types of workpieces that can be processed are also restricted.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a multi-tasking device that can process many types of workpieces using a larger number of types of Φ processing machines.

B0 Structure of the Invention (Means for Solving Problems 11) The apparatus of the present invention includes a base on which a mounting/detachment station and a plurality of processing stations are set at equal intervals in the circumferential direction; a support that supports a plurality of workpiece gripping mechanisms provided at the base and is movable angularly around a vertical axis and is supported on a base; the supporter is configured such that each of the workpiece gripping mechanisms corresponds to each of the stations; index driving means for driving angular displacement; various processing machines fixedly disposed on the outside of the support body corresponding to each of the processing stations; A plurality of drive units are fixedly arranged on the base in correspondence with each station in the support body, and for driving the corresponding work gripping mechanism according to the operation mode of each station.

(2) Operation The work to be processed is gripped by the work gripping mechanism of the support at the attachment/detachment station, and is sequentially conveyed to each processing station in accordance with the angular displacement movement of the support.

At each processing station, each drive unit is connected to a workpiece gripping mechanism, and the drive unit and processing machine work together to process the workpiece, performing a series of complex machining operations on the workpiece while the support is angularly displaced by 360 degrees. will be carried out.

(3) Example Hereinafter, an example of the present invention will be described with reference to the drawings. First, in FIGS. 1 and 2, this composite processing apparatus 1 processes, for example, an automobile wheel as a workpiece W. The work W transported by the carry-in conveyor 2 is sequentially processed by the turning machine 3, the first hole machine 4, and the second hole machine 5, and then is carried out by the carry-out conveyor 6.

The composite processing device 1 includes a base 7, a support 8 supported on the base 7, an index drive means 9 for driving the support 8 by angular displacement, and index drive means 9 for driving the support 8 in an angular displacement, and index drive means 9 arranged at equal intervals in the circumferential direction within the support 8. For example, a plurality of fixing devices are used for attachment/detachment, for rotation, for first fixation, and for second fixation.
It includes four drive units 10, 11, 12.13 for fixation and each of the processing machines 3.4.5.

On the base 7, at equal intervals in the circumferential direction, for example, at intervals of 90 degrees as in this embodiment, there are installed a mounting/dismounting station S1, a turning station S2, a first drilling station S3, and a second drilling station S3. The drilling stations S4 are sequentially set in a counterclockwise direction in FIG. The carry-in conveyor 2 and the carry-out conveyor 6 are arranged in a straight line with a space between them on the side of the loading/unloading station S1. A robot 14 is provided to bring the workpiece W from the attachment/detachment station S1 to the carrying-out conveyor 6 as well as to the station S1.

The turning machine 3 is for turning, for example, the end face or outer peripheral surface of the workpiece W, and is fixed and arranged at a turning station S2.
is driven to rotate. In addition, the first and second hole processing machines 4.5
is for drilling holes in the workpiece W, and is fixed and arranged on the first and second hole drilling stations S3 and 34. These first and second drilling stations S3. S
4, the workpiece W is positioned and fixed, and the cutting tools 4 and 5 rotate to perform the first and second hole drilling operations.

At the bottom of the turning station S2, an outgoing conveyor 15 is installed which extends perpendicularly to the incoming conveyor 2, and the cutting waste generated at the turning station S2 is discharged outward by the outgoing conveyor 15.

The support 8 is basically formed in the shape of a bottomed cylinder with a closed upper end, and its lower end is supported by the base 7 via a bearing 16, so that the support 8 can be angularly displaced around the vertical axis. It is free.

The index driving means 9 for driving the support 8 through angular displacement includes an internal gear 17 carved all around the inner surface of the lower end of the support 8, and an internal gear 17 rotatably supported on the base 7. The power unit 19 is built in the lower part of the base 7 and is used to rotationally drive the drive pinion 18. According to this index drive means 9, the support body 8 can be moved 90 degrees around the vertical axis.
Angular displacement is driven in degrees.

Four support holes 20 having a circular cross section are provided along the radial direction of the support body 8 at positions spaced apart by 90 degrees on the sides of the support body 8. , the work gripping mechanism 21 is supported such that it can move in the axial direction within a limited range and rotate around the axis.

In FIG. 3, the workpiece gripping mechanism 21 includes a carrier 22 which is basically cylindrical and slidable into the support hole 20 and capable of axial movement and rotation, and a receiver fixed to the outer end surface of the carrier 22. The member 24, the end plate 25 fixed to the inner end of the gear rear 22, and the receiver are movable bodies 2 that are slidably connected to the carrier 22 so as to be able to move in the axial direction between the members 24.
6, and a plurality of, for example, three, chuck claws 27 that rotate according to the movement of the moving body 26 and are supported by the carrier 22 so as to be able to hold the workpiece W in contact with the contact surface 23.

The chuck jaws 27 are arranged at equal intervals in the circumferential direction, and are orthogonal to the axis of the moving body 26 and
The rotating body 29 is provided at one end of a rotary body 29 rotatably supported by the carrier 22 via a shaft 28 that is movable relative to the movable body 26 within a regulated range along the direction of movement. Moreover, each rotating body 29 is slidably fitted into an inclined hole 30 formed in the movable body 26 so as to be inclined radially outward as it goes outward in the axial direction. Also, a rotating body 29 rotates around the shaft 28.
A circular arc portion 31 is provided at the outer end of the inclined hole 30 to allow rotation of the circular arc portion 31.
An arcuate recess 32 is provided in sliding contact with the outer surface of the holder. Furthermore, a spherical contact piece 33 that contacts the end plate 25 is slidably connected to the other end of the rotating body 29, and a spring 34 is interposed between the spherical abutting piece 33 and the rotating body 29. . Due to the spring force of the spring 34, the inner side surface of the rotating body 29 reliably slides into contact with the inner surface of the inclined hole 30, and the rotating body 29
9, that is, the chuck claw 27 rotates. Further, a support member 36 having a sliding hole 35 open to the movable body 26 side is fixed in the receiver member 24, and a protrusion 37 that slides into the sliding hole 35 is provided on the movable body 26 in a protruding manner. . Moreover, the protrusion 37
A temporary clamping spring 38, which is stronger than the spring 34, is interposed between the support member 36 and the spring 34, and the movable body 26 is moved in a direction approaching the end plate 25 by the spring force of the temporary clamping spring 38. energized. As a result, the movable body 26 is urged inward, the chuck claws 27 engage the workpiece W, and the workpiece W becomes temporarily clamped.

On the outer surface of the outer end of the carrier 22, short engagement grooves 39 that are open toward the outer end and extend in the axial direction are provided at least two, for example, three, spaces at intervals in the circumferential direction. On the other hand, in the support body 8, for example, three holes 40 are formed perpendicularly to the axis of the support hole 20 and open on the inner surface of the support hole 20 in correspondence with each engagement groove 39. A positioning pin 41 that can be engaged with the engagement groove 39 is slidably engaged.

The support body 8 also has support holes 20 orthogonal to each of the holes 40.
A sliding hole 42 extending parallel to this is bored, and the inner end of this sliding hole 42 is closed with a lid 43. In the sliding hole 42,
A pressing member 45 having a sloped surface 44 that slopes away from the carrier 22 as it goes outward in the axial direction is slid together, and the rear end of the positioning pin 41 also has the sloped surface 4.
An inclined surface 46 corresponding to No. 4 is provided. Moreover, a spring 47 is interposed between M2S and the pressing member '45. Further, on the tip side of the pressing member 45, there is a long hole 4 extending in the axial direction.
A guide rod 49 is fixed concentrically to the rear end of the positioning pin 41 and protrudes outward through the elongated hole 48 and the support 8. body 8
A spring 5o is interposed between them.

The spring 47 presses the pressing member 45 axially outward, and the spring 5
0 presses the positioning pin 41 axially outward. Moreover, the spring force of the spring 50 is set to be weaker than the spring force of the spring 47, so that both inclined surfaces 44 and 46 are always in contact with each other, and the positioning pin 41 is pressed axially inward. Therefore, the positioning pins 41 are biased in the direction of engaging with the engagement grooves 39, and when these positioning pins 41 engage with the respective engagement grooves 39, the carrier 22, that is, the support hole 20 of the work gripping mechanism 21 This prevents it from falling off.

The rotational drive unit 11 includes a spindle 52 rotatably supported within the support 8 by a support plate 51 fixed on the base 7 and having the same axis as the carrier 22 .

A support block 5 is attached to a support arm 53 provided on a support plate 51.
4 is fixed, and the spindle 52 has bearings 55, 56.
．． 57, it is rotatably supported by the support block 54. A bottomed cylindrical body 58 is connected to the inner end of the spindle 52 by a spline 59, and a driven boob IJ 60 is provided on the open end of the bottomed cylindrical body 59. Further, a bearing 6 is provided between the support body 8 and the center upper part of the support body 8.
A support stand 62 is provided on support legs 63 extending upward from the support plate 51, and a drive motor 64 is mounted on the support stand 62 so as to be positioned above the support body 8.
is fixed and supported. A drive pulley 66 is fixed to the output shaft 65 of the drive monitor 64, and this drive pulley IJ66
An endless cog belt 67 is wound between the driven pulleys 60 and the driven pulleys 60. Therefore, the spindle 52 is rotationally driven in accordance with the operation of the drive motor 64.

In order to transmit the rotational power of the spindle 52 to the workpiece gripping mechanism 21, the spindle 52 and the workpiece gripping mechanism 21
A serration clutch 68 is provided between them. That is, the serration clutch 68 includes a coupling member 70 formed in a ring shape with radial serrations 69 and fixed to the end plate 25 of the work gripping mechanism 21, and a radial serration 71 corresponding to the serration 69.
The coupling member 7 is formed into a ring shape with
0 and a ring-shaped coupling member 72 fixed to the outer end surface of the spindle 52. The serration clutch 68 transmits the rotational power of the spindle 52 to the workpiece gripping mechanism 21 when the workpiece gripping mechanism 21 is pulled inward and both serrations 69 and 71 are engaged.

In FIGS. 4 and 5, one serration 69
is formed by carving serration teeth with a trapezoidal cross section at equal intervals in the circumferential direction. The other serration 71 is formed corresponding to the serration 69. Therefore, when both serrations 69 and 71 are engaged, one coupling member 7
0, that is, the carrier 22 is aligned so as to have the same axis as the axis of the rotational drive unit 11.

The bottomed cylindrical body 58 is provided with an essentially cylindrical inner cylinder part 73 protruding from its open end, and the protruding end of the inner cylinder part 73 is supported by a support cylinder 76 via bearings 74 and 75. be done. Further, the support tube 76 has a support column 77 erected on the support plate 51.
fixed on top.

A detection body 78 is fixed to the outer surface of the intermediate portion of the inner cylinder portion 73, and a proximity switch 79 for detecting the detection body 78 is fixedly supported on the support column 77. This proximity switch 79 is for fixing the rotation stop position of the spindle 52, and when the rotation of the spindle 52 is stopped, the operation of the drive motor 64 is stopped according to the change in the switching mode of the proximity switch notch 79. . As a result, the workpiece gripping mechanism 21, which was fastened to the spindle 52 and rotated integrally, stops at a position where each engagement groove 39 corresponds to the positioning pin 41.

Further, a recess 80 is provided on the outer surface of the intermediate portion of the spindle 52, and a positioning pin 81 that fits into the recess 80 is slid onto the support block 54 at right angles to the axis. A piston 82 is integrally provided at the rear end of this fixed positioning pin 81, and the piston 82 is slidably engaged with a cylinder 83 fixed to the support block 54. As a result, the positioning pin 81 is operated in response to switching of the supply of hydraulic pressure into the cylinder 83, and when the positioning pin is fitted into the recess 80, the spindle 52 is held in a position.

A clamp rod 85 is concentrically slid into the spindle 52 so as to allow relative movement and rotation in the axial direction.
The cylindrical fastening iron 86 is slidably engaged with the cylindrical fastening iron 86 while being unable to rotate relative to it. The clamp rod 85 engages with the movable body 26 of the workpiece gripping mechanism 21 and drives in the axial direction to operate the chuck claws 27. The fastening rod 86 engages with the carrier 22 of the workpiece gripping mechanism 21 and drives the carrier 22 in the axial direction to connect and disconnect the workpiece gripping mechanism 21 and the spindle 52.

In FIG. 6, an end plate 25 in the workpiece gripping mechanism 21
A first cambling member 90 having a hole in which a small diameter hole 87 and a large diameter hole 88 are concentrically connected via a stepped portion 89 in order from the movable body 26 side is fixed to the center of the first cambling member 90 . Further, a second coupling member 92 having a hole 91 open to the clamp rod 85 side is slid into the small diameter hole 87 of the first coupling member 90, and this second coupling member 92 is connected to the movable body 26 by a port 93. be combined.

Referring also to FIG. 7, on the inner surface of the open end side of the large diameter hole 88 in the first coupling member 90, a plurality of spline teeth 95 having O-shaped grooves 94 between them are arranged at equal intervals in the circumferential direction. It is provided with an opening. On the other hand, a plurality of spline claws 96 corresponding to each of the U-shaped grooves 94 are carved on the outer surface of the tip of the fastening iron 86, and these spline teeth 95
and the first coupling mechanism 9 by the spline pawl 96.
7 is composed. That is, by slightly angularly displacing the fastening iron 86 with each spline pawl 96 passing through the O-shaped groove 94, the spline tooth 95 and the spline pawl 96, that is, the fastening iron 86 and the carrier 22
is engaged.

Further, on the inner surface of the open end side of the hole 91 in the second coupling member 92, a plurality of spline teeth 99 having O-shaped grooves 98 between them are provided at equal intervals in the circumferential direction.

On the other hand, a plurality of spline claws 100 corresponding to the U-shape '/R9B are carved on the outer surface of the tip of the clamp rod 85, and the second coupling mechanism 101 is formed by these spline teeth 99 and spline claws 100. configured.

That is, by slightly angularly displacing the clamp rod 85 with each spline pawl 100 passing through the O-shaped groove 98, the spline teeth 99 and the spline pawl 10
0, that is, the crank blond 85 and the movable body 26 are engaged.

Referring again to FIG. 3, a piston 102 is fixed to the rear end of the clamp rod 85, and this piston 102 is slidably engaged with a clamping cylinder portion 103 provided in the inner cylinder portion 73. The inside of the cylinder portion 103 is divided by the piston 102 into an extension hydraulic chamber lO4 and a contraction hydraulic chamber 105.The extension hydraulic chamber 104 is connected to an expansion hydraulic pressure supply path 106, and the contraction hydraulic chamber 105 is connected to an expansion hydraulic pressure chamber 104. A hydraulic pressure supply path 107 for contraction is communicated. These hydraulic supply channels 10
6.107 is bored over almost the entire length of the inner cylinder part 73 and the spindle 52, and the support cylinder 76 has a ball 1-1 which is in constant communication with the hydraulic pressure supply paths 106 and 107.
08,109 are drilled.

When hydraulic pressure is supplied to the extension hydraulic chamber 104 of the clamp cylinder section 103, the clamp rod 85 is extended in the direction approaching the workpiece gripping mechanism 21, and when hydraulic pressure is supplied to the contraction hydraulic chamber 105, the clamp rod 85 is The rod 85 is contracted in a direction away from the work gripping mechanism 21.

Further, a piston 110 is integrally provided in the intermediate portion of the fastening rod 86, and this piston 11O is a fastening cylinder portion defined between the spindle 52 and the fastening condo 86 on the distal end side of the clamp rod 85. 111. Moreover, the inside of this tightening cylinder part 111 is provided with an extension hydraulic chamber 112 and a contraction hydraulic pressure 11 by the piston 110.
The extension hydraulic chamber 112 is connected to the extension hydraulic pressure supply path 106, and the contraction hydraulic chamber 113 is connected to the contraction hydraulic pressure supply path 107.

When hydraulic pressure is supplied to the extension hydraulic chamber 112, the fastening rod 86 is extended in the direction approaching the workpiece gripping mechanism 21, and when hydraulic pressure is supplied to the contraction oil field chamber 113, the fastening rod 86 is moved from the workpiece gripping mechanism 21. It contracts in the direction of separation.

The inner cylindrical portion 73 is used to drive the clamp rod 85 for angular displacement.
has a built-in low reactuator 115,
The rotary shaft 116 of the row reactor 1150 is coupled to the rear end of the clamp rod 85 via a spline 117. Therefore, the row actuator 115
The clamp rod 85 is angularly displaced in response to the operation, and the clamp rod 85 is also allowed to move in the axial direction. On the other hand, a key groove 119 fitted on the outer surface of the clamp rod 85 is engaged with a key 118 provided on the inner surface of the fastening rod 86, and relative angular displacement of the fastening rod 86 and the clamp rod 85 is prevented. , the fastening rod 86 is also angularly displaced in accordance with the angular displacement movement of the clamp rod 85.

In FIG. 8, in the second drilling station S4, a second fixing drive unit 13 is fixedly disposed within the support 8. As shown in FIG. This second fixing drive unit 13 is for reliably fixing the workpiece W to the workpiece gripping mechanism 21 and positioning and fixing the workpiece gripping mechanism 21, and includes a cylinder arm 120 protruding from the support plate 51. provided above.

The second fixing drive unit 13 has the same structure as the above-described rotation drive unit 11 except for the spindle 52 and related parts, and the clamp rod 85 is slid onto the support block 121. A cylindrical fastening rod 86 is slidably fitted between the support block 121 and the clamp rod 85. Further, the support block 121 includes a clamp rod 85 and a fastening rod 8.
Low reactor actuator 11 for driving 6 in angular displacement
5 is built-in.

Although detailed explanation of other parts will be omitted, parts corresponding to those shown in FIG. 3 are given the same reference numerals.

The first fixing drive unit 12 in the first drilling station S3 and the attachment/detachment drive unit 10 in the attachment/detachment station S1 have the same structure as the first fixation drive unit 13 described above.

Next, the operation of this embodiment will be described. When clamping the workpiece W within the workpiece gripping mechanism 21 at the attachment/detachment station S1, the fastening rod 86 and the clamp rod 85 of the attachment/detachment drive unit 10 are driven to extend. At this time, since the positioning pin 41 is engaged with the engagement groove 39 of the carrier 22 and the carrier 22 is prevented from moving outward in the axial direction, the movable body 26 is pushed by the clamp rod 85. relative movement toward the outside in the axial direction,
The chuck claws 27 rotate outward around the shaft 28. When the workpiece W on the carry-in conveyor 2 is brought into contact with the contact surface 23 by the robot 14 in this state, the fastening rod 86 and the clamp rod 85 are contracted, and the movable body 26 is moved by the spring force of the temporary clamp spring 38. Move axially inward.

Therefore, each chuck claw 27 rotates inward,
The workpiece W is held in contact with the contact surface 23.

Therefore, the workpiece W is held by the workpiece holding mechanism 21 in a temporarily clamped state.

At this time, the connection between each drive unit 10, 11, 12.13 and each gripping mechanism 21 is released, and the index drive means 9 drives the support body 8 through an angular displacement of 90 degrees. As a result, the work W in the temporarily clamped state is brought to the turning station S2.

At the turning station S2, the fastening rod 86 and the clamp rod 85 are first driven to extend.

As a result, when the spline pawl 96 on the fastening rod 86 side and the spline pawl lOO on the clamp rod 85 side pass through the U-shaped groove 94.98, the row reactor 115 is activated, and the clamp rod 85 and the fastening rod 86 are angularly displaced by 1/2 of the spacing between each spline pawl 96, 100, thereby causing the spline pawls 96, 100 to
100 engages spline teeth 95.99. Therefore, the fastening rod 86 is connected to the carrier 22 via the first clamping mechanism 97, and the clamping rod 85 is connected to the second clamping mechanism 97.
It is connected to the moving body 26 via a coupling mechanism 101.

In such a connected state, the fastening rod 86 and the clamp rod 85 are driven to contract. As a result, carrier 22
Then, the movable body 26 is drawn inward, the serrations 69 and 71 are engaged, and the spindle 52 and the carrier 22 are connected via the serration clutch 68. At this time, the front and rear wheels 22 are aligned with the rotary drive unit 11. In this state, the engagement between the engagement groove 39 of the carrier 22 and the positioning pin 41 is released. In addition, the movable body 26 is driven relative to the carrier 22 toward the end plate 25, and the chuck claws 27 engage the workpiece W more firmly accordingly.
The workpiece W is reliably clamped by the workpiece gripping mechanism 21.

Next, with the turning machine 3 ready for turning, the positioning pin 81 is operated to separate from the recess 80.
Furthermore, by operating the drive motor 64, the spindle 52 is rotationally driven.

Since the spindle 52 is connected to the workpiece gripping mechanism 21 via the serration clutch 68, the workpiece gripping mechanism 21, that is, the workpiece W, rotates together with the spindle 52, and the turning machine 3 performs turning on the workpiece W.

After the turning process is completed, the drive motor 64 stops operating in response to a change in the switching mode of the detection switch 79, and the spindle 52 stops rotating at a certain position, and the positioning pin 81 is activated to maintain that position. and fit into the recess 80.

Next, the fastening rod 86 and the clamp rod 85 are extended, and the carrier 22 and the movable body 26 of the workpiece gripping mechanism 21 are pushed outward in the axial direction, and the positioning pin 41 is engaged with the engagement groove 39 . As a result, the connection state by the serration clutch 68 is released, and the spindle 52 and carrier 22 are separated from each other. After this, the row reactuator 115 is activated, and the fastening rod 86
and the clamp rod 85 has a spline claw 96°10
0 to the position corresponding to the U-shaped groove 94.98, and then the fastening rod 86 and the clamp rod 85
By driving the coupling mechanisms 97 and 101 to contract, the compressed state of the first and second coupling mechanisms 97 and 101 is released. Therefore, the fastening port 86 and the carrier 22 are separated from each other, and the clamp rod 85 and the movable body 26 are also separated from each other.

As a result, the movable body 26 is moved inward by the spring force of the temporary clamping spring 38, and the workpiece W is temporarily clamped by the chuck claws 27.

Here, the index driving means 9 is operated to angularly displace the support body 8 by 90 degrees, and the workpiece W is moved to the first drilling station.
Brought to you by John S3.

In the first hole drilling station S3, the workpiece W is reliably gripped by the workpiece gripping mechanism 21 by the expansion/contraction and angular displacement operations of the fastening rod 86 and the clamp rod 85 in the first fixing drive unit 12, and the workpiece gripping mechanism 21 Mechanism 21 is connected to support block 121 via serration clutch 68 . Therefore, the work gripping mechanism 2
1 and the work W are firmly positioned and fixed, and the cutting tool of the first hole machining machine 4 is operated to machine a hole in the work W.

After the hole machining is completed, the connection between the first fixing drive unit 12 and the workpiece gripping mechanism 21 is released, and the workpiece W is held by the workpiece gripping mechanism 21 in a temporary clamp state. Therefore, the support body 8 is angularly displaced by 90 degrees by the index driving means 9, and the workpiece W is moved to the second drilling station S.
4.

In the second hole drilling station S4, the work gripping mechanism 21 and the workpiece W are positioned and fixed by the action of the second fixing drive unit 13, and the workpiece W is machined by the second hole processing step a5. This second hole drilling Est.
After the hole machining is completed in step 4, the connection state between the workpiece gripping mechanism 21 and the second fixing drive unit 13 is released, and the workpiece W held in the temporary clamp state by the workpiece gripping mechanism 21 is released by the operation of the index drive means 9. is detachable station S
brought to l.

At the attachment/detachment station S1, the temporary clamping state of the workpiece W in the workpiece gripping mechanism 21 is released with the robot 14 gripping the workpiece W. That is, in FIG. 9,
The carrier 22 of the workpiece gripping mechanism 21 is fixed to the support block 121 via the serration clutch 68 by the expansion/contraction and angular displacement operations of the fastening rod 86 and the clamp rod 85 of the attachment/detachment drive unit 1o. fastening rod 86 and carrier 2
2 are connected, and the clamp rod 85 and the movable body 26 are connected via the second coupling mechanism 101. In this state, as the clamp rod 85 is extended, the movable body 26 is compressed by the temporary clamping spring 38 and moves outward in the axial direction, and the chuck claws 27 rotate outward accordingly. can be detached from the work gripping mechanism 21.

By operating the robot 14, the workpiece W after processing can be removed from the workpiece gripping mechanism 21 and placed on the carry-out conveyor 6.

In this way, the support body 8 holding the workpiece W is angularly displaced 360 degrees in 90 degree increments, whereby turning and two types of drilling are performed. Moreover, each station S1~
By supplying the work W so that the work W is always present in S4, the work W can be processed continuously and efficiently.

C1 Effects of the invention As described above, according to the present invention, the support is driven for angular displacement on the base, and the drive units are fixedly disposed within the support in correspondence with the attachment/detachment station and a plurality of processing stations, and each Since the workpiece gripping mechanism is driven by the drive unit according to the processing machine placed at the processing station, it is possible to use a processing machine that uses a rotary cutting tool or a fixed gear. It becomes possible to increase the types of workpieces that can be processed and perform various types of processing continuously.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall cross-sectional view, FIG. 2 is a cross-sectional view taken along line nn in FIG. 1, and FIG. 3 is a cross-sectional view taken along line m-m in FIG. 1. 4 is a partially enlarged front view of the serrations, FIG. 5 is a sectional view taken along the line V-V in FIG. Figure 7 is a view from the ■ arrow in Figure 6, and Figure 8 is a view from ■ in Figure 1.
Figure 9 is an enlarged vertical sectional view showing the workpiece removal operation state in the attachment/detachment station. l...Multi-processing device, 3...Turning machine, 4...
1st hole processing machine, 5... 2nd hole processing machine, 7... Base,
8... Support body, 9... Index driving means, 10
... Attachment/detaching drive unit, 11... Rotation drive unit, 12... First fixing drive unit, 13...
Second fixing drive unit, 21... workpiece gripping mechanism,
SL... Attachment and detachment station, 32. S3, 34...
Processing station patent applicant Honda Motor Co., Ltd. Figure 7 Figure 6

Claims (1)

[Claims] A base on which a loading/unloading station and a plurality of processing stations are set at equal intervals in the circumferential direction; supporting a plurality of work gripping mechanisms provided at equal intervals in the circumferential direction corresponding to each of the stations; and a base that supports angular displacement around the vertical axis; a support body supported on a base; an index driving means for driving the support body in angular displacement so that each of the workpiece gripping mechanisms corresponds to each of the stations; various processing machines that are fixedly arranged on the outside of the support body; A multi-processing device comprising: a plurality of drive units for driving corresponding workpiece gripping mechanisms according to the operating mode of the station;