JP2013208685A - Rotary machining tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary machining tool capable of quickly setting up a cutting tool without special facility investment.SOLUTION: A rotary machining tool 1 has one of supporting holes 33A facing one of shafts 73A of a cutting tool 7 in a state that a Y-moving axis 3Y is slant in an axial direction of the cutting tool 7 held at a predetermined position by a holding means 70, as a tilting and facing operation. Then, as an insertion operation, an A-rotation axis 3A is rotated, also the Y-moving axis 3Y and a Z-moving axis 3Z are moved, the Y-moving axis 3Y and the axial direction of the cutting tool 7 are changed to be parallel, and the one of shafts 73A of the cutting tool 7 is inserted into the one of supporting holes 33A. Thereafter, as a supporting operation, a distance between a pair of supporting holes 33A and 33B of a cutter mounting unit 31 is reduced to support shafts 73A and 73B at both ends of the cutting tool 7 in the pair of supporting holes 33A and 33B.

Description

  The present invention relates to a rotary processing machine that performs processing while supporting a blade between a pair of support holes in a blade mounting portion.

In a hobbing machine or the like as a rotary machine that cuts a tooth surface on the outer periphery of a cylindrical workpiece, the cylindrical workpiece is supported by the rotating device, the cutting tool is supported by the processing device, and is rotated by the rotating device. The tooth surface is cut by a cutting tool that is rotated by a processing device. In the rotating device, a rotation support jig using a pair of jig parts is used to support both ends of the cylindrical workpiece.
In addition, the cutting tool is changed according to the shape of the cylindrical workpiece to be processed using the manual operation of the operator or a robot or a dedicated changing device.

  For example, in the work setup method disclosed in Patent Document 1, a machine tool including a reciprocating working tool base having a cutting unit and a table on which a work base on which the work is placed is arranged is used. Then, the work table is moved by relatively moving the processing tool table and the table.

Further, for example, the processing cell system of Patent Document 2 includes an automatic processing machine that processes a workpiece, and a setup station that sets up a jig or a tool necessary for processing the workpiece. Moreover, the workpiece | work for a process and the jig | tool or tool for a process setup are supplied with respect to the automatic processing machine with the robot. In addition, by means of transport means, the storage medium storing information such as jigs or tools, workpieces, and setup information can be transported and moved between the automatic processing machine and the setup station in an arbitrary process. Yes.
Further, for example, Patent Document 3 relating to a hobbing machine discloses that unprocessed workpieces and processed workpieces are repeatedly carried into and out of a table that rotates a workpiece by a turning loader.

JP 2002-233922 A Japanese Patent Publication No. 6-22782 JP 11-291125 A

  However, particularly when the opening (distance) between the pair of support holes in the blade mounting portion is shorter than the length of the blade supported by the blade, it is not easy to replace the blade. That is, in this case, in order to replace the blade with a robot or a dedicated setup changer, there are many interfering objects in the surroundings, and this replacement takes time. In addition, when a robot or a dedicated setup change device is used, the initial investment of the entire rotary processing machine increases.

  The present invention has been made in view of such a background, and has been obtained in an attempt to provide a rotary machine capable of quickly changing the cutting tool without making a special capital investment.

One aspect of the present invention has a pair of support holes for supporting the shaft portions on both sides of the blade, and a blade mounting portion capable of changing the distance between the pair of support holes;
A Y movement axis for moving the blade mounting portion in the axial direction of the pair of support holes;
An A rotating shaft that rotates the Y moving shaft and the blade mounting portion by a predetermined angle;
An X movement axis for moving the A rotation axis, the Y movement axis, and the blade mounting portion in a first direction parallel to the axis of the A rotation axis;
In a rotary processing machine comprising at least the A rotation axis, the Y movement axis, and a Z movement axis that moves the blade mounting portion in a second direction orthogonal to the first direction,
One support hole is made to face one shaft portion of the blade tool in a state where the Y movement axis is inclined with respect to the axial direction of the shaft portions on both sides of the blade tool held at a predetermined position by the holding means. Inclined facing operation,
Rotating the A rotation axis and moving at least the Y movement axis and the Z movement axis so that the Y movement axis and the axial direction of the cutting tool are parallel to each other, and the one support hole An insertion operation of inserting one shaft portion of the cutting tool into,
The distance between the pair of support holes of the blade mounting portion is reduced, and the support operation of supporting the shaft portions at both ends of the blade tool in the pair of support holes is performed. It exists in a rotary processing machine (Claim 1).

Another aspect of the present invention has a pair of support holes for supporting the shaft portions on both sides of the blade, and a blade mounting portion capable of changing the distance between the pair of support holes;
A Y movement axis for moving the blade mounting portion in the axial direction of the pair of support holes;
An A rotating shaft that rotates the Y moving shaft and the blade mounting portion by a predetermined angle;
An X movement axis for moving the A rotation axis, the Y movement axis, and the blade mounting portion in a first direction parallel to the axis of the A rotation axis;
In a rotary processing machine comprising at least the A rotation axis, the Y movement axis, and a Z movement axis that moves the blade mounting portion in a second direction orthogonal to the first direction,
Holding operation for holding the cutting tool mounted on the blade mounting unit by a holding means;
The other extraction operation of expanding the distance between the pair of support holes of the blade mounting portion and extracting the other shaft portion of the blade from the other support hole;
Rotate the A rotation axis and move at least the Y movement axis and the Z movement axis so that the Y movement axis is inclined with respect to the axial direction of the shaft portions on both sides of the cutting tool. The rotary processing machine is configured to perform one extraction operation of extracting one shaft portion of the cutting tool from one of the support holes (Claim 2).

In the rotary processing machine of the above aspect, it is easy to change (replace) the cutting tool particularly when the opening (distance) between the pair of support holes in the cutting tool mounting portion is shorter than the length of the cutting tool supported by the opening. I am trying to do it. The rotary machine moves and rotates the blade mounting portion with respect to the blade held at a predetermined position by the holding means, and mounts the blade on the blade mounting portion.
In mounting the cutting tool on the cutting tool mounting portion, the rotary processing machine first performs an oblique movement operation in which the Y movement axis is inclined with respect to the axial direction of the shaft portions on both sides of the cutting tool held at a predetermined position by the holding means. In this state, one support hole of the blade tool mounting portion is opposed to one shaft portion of the blade tool.

  Next, as an insertion operation, the A rotation axis is rotated and at least the Y movement axis and the Z movement axis are moved. And it changes so that the Y movement axis and the axial direction of the axial part of the both sides of a cutting tool may become parallel, and inserts one axial part of a cutting tool in one support hole. Thereafter, as a supporting operation, the distance between the pair of support holes of the blade mounting portion is reduced, and the shaft portions at both ends of the blade are supported by the pair of support holes.

Thus, in the rotary processing machine according to one aspect, the cutting tool mounting portion can be moved and rotated to mount the cutting tool on the cutting tool mounting portion. This eliminates the need for a dedicated robot / device for mounting the blade and eliminates special capital investment. In addition, since the cutting tool mounting part itself is moved and rotated to mount the cutting tool on the cutting tool mounting part, there is no surrounding interference and the cutting tool can be quickly replaced (replaced).
Therefore, according to the rotary processing machine of one aspect, the cutting tool can be changed quickly without making a special capital investment.

In the rotary processing machine according to the other aspect described above, in particular, when the opening (distance) between the pair of support holes in the cutting tool mounting portion is shorter than the length of the cutting tool supported by the cutting tool, the cutting (changing) of the cutting tool is performed. We are trying to do it easily. The rotary processing machine holds the cutting tool mounted on the cutting tool mounting part by holding means, moves and rotates the cutting tool mounting part, and removes the cutting tool from the cutting tool mounting part.
In removing the cutting tool from the cutting tool mounting portion, the rotary machine first holds the cutting tool mounted on the cutting tool mounting portion by the holding means as a holding operation. Next, as the other extraction operation, the distance between the pair of support holes of the blade mounting portion is increased, and the other shaft portion of the blade is extracted from the other support hole.
Next, as the one extraction operation, the A rotation axis is rotated and at least the Y movement axis and the Z movement axis are moved. Then, the Y movement axis is changed so as to be inclined with respect to the axial direction of the shaft portions on both sides of the blade, and one shaft portion of the blade is extracted from one support hole.

As described above, in the rotary processing machine according to another aspect, the cutting tool can be detached from the cutting tool mounting part by moving and rotating the cutting tool mounting part. This eliminates the need for a dedicated robot / device for detaching the blade and eliminates special capital investment. Further, since the cutting tool mounting part itself is moved and rotated to detach the cutting tool from the cutting tool mounting part, there is no surrounding interference, and the cutting tool can be quickly replaced (replaced).
Therefore, even with the rotary machine of another aspect, it is possible to quickly change the cutting tool without making a special capital investment.

The perspective view which shows the rotary processing machine concerning an Example. Explanatory drawing which shows the periphery of the blade mounting part of a rotary processing machine concerning the Example in the state seen from upper direction. Explanatory drawing which shows the state which looked at the state which brought the cutting tool mounting part of the rotary processing machine close | similar to the cutting tool on a pallet concerning an Example. Explanatory drawing which shows the state which looked at the state which made the one support part of the blade mounting part diagonally face the one axial part of a blade tool concerning an Example from the front. Explanatory drawing which shows the state which inserts the one axial part of a cutter concerning an Example in one support hole of a cutter attachment part from the front. Explanatory drawing which shows the state which inserts the one axial part of a cutter concerning an Example in one support hole of a cutter attachment part from the front. Explanatory drawing which shows the state which inserted the one axial part of the blade tool concerning one Example in the one support hole of the blade tool mounting part from the front. Explanatory drawing which shows the state which looked at the state which supported the axial part of the both ends of a blade tool concerning a working example in a pair of support hole of a blade tool mounting part. The perspective view which shows the rotary processing machine which arrange | positioned the turning loader concerning an Example. The perspective view which shows the state which grips a cylindrical workpiece | work with a gripper concerning an Example. The perspective view which shows the gripper concerning an Example. The perspective view which shows the state which grips a rotation support jig | tool with a gripper concerning an Example. The perspective view which shows the state which grips the pallet with which the cutting tool was hold | maintained with the gripper concerning an Example.

A preferred embodiment of the rotary machine described above will be described.
In the rotary machine, when the insertion operation is performed, when the A rotation shaft is rotated and the Y movement axis and the Z movement axis are moved, the X movement axis can also be moved. In this case, when there is a possibility that the holding means or its peripheral part may interfere with the blade mounting portion, it is effective to avoid this interference.
In addition, when the one extraction operation is performed, when the A rotation axis is rotated and the Y movement axis and the Z movement axis are moved, the X movement axis can also be moved. In this case, when there is a possibility that the holding means or its peripheral part may interfere with the blade mounting portion, it is effective to avoid this interference.

  The rotary processing machine can be a vertical rotary processing machine in which the cutting tool mounting portion is arranged in the horizontal direction, the X movement axis is arranged in the depth direction, and the Z movement axis is arranged in the vertical direction. The rotary processing machine may be a horizontal rotary processing machine in which the cutting tool mounting portion is arranged in the vertical direction, the X movement axis is arranged in the depth direction, and the Z movement axis is arranged in the horizontal direction. .

The rotary processing machine is a hobbing machine that rotates the cutting tool mounting portion to cut a tooth surface on the outer periphery of the cylindrical workpiece. The hobbing machine holds and rotates the cylindrical workpiece. A rotating device, and a conveying device that carries the cylindrical workpiece before processing into the rotating device and unloads the cylindrical workpiece after processing from the rotating device, and the holding means includes It may be a pallet that is gripped by a gripper of a transport device and configured to hold the cutting tool in a horizontal state (claim 3).
In this case, the cutting tool (hob cutter) can be attached to and detached from the hobbing machine by the operation of the hobbing machine itself, and the cutting of the cutting tool can be performed quickly without any special capital investment.
In addition, the configuration of the rotary processing machine can be further simplified by holding the cutting tool at a predetermined position by using a transfer device that carries in and out the cylindrical workpiece with the rotating device of the hobbing machine. .

Hereinafter, embodiments of a rotary machine will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the rotary machine 1 of this example includes a blade mounting portion 31, a Y moving shaft 3 </ b> Y, an A rotating shaft 3 </ b> A, an X moving shaft 3 </ b> X, and a Z moving shaft 3 </ b> Z. The blade mounting portion 31 has a pair of support holes 33A and 33B that support the shaft portions 73A and 73B at both ends of the blade 7, and the distance between the pair of support holes 33A and 33B can be changed. The Y movement shaft 3Y is configured to move the blade mounting portion 31 in the axial direction of the pair of support holes 33A and 33B. The A rotation shaft 3A is configured to rotate the Y movement shaft 3Y and the blade attachment portion 31 by a predetermined angle. The X movement axis 3X is configured to move the Z movement axis 3Z, the A rotation axis 3A, the Y movement axis 3Y, and the blade mounting portion 31 in a depth direction D as a first direction parallel to the axis of the A rotation axis 3A. Yes. The Z moving shaft 3Z is configured to move the A rotating shaft 3A, the Y moving shaft 3Y, and the blade mounting portion 31 in the vertical direction H as a second direction orthogonal to the first direction.

The rotary machine 1 performs the following operations to mount the blade 7 on the blade mounting portion 31.
First, as shown in FIGS. 3 and 4, the Y moving shaft 3 </ b> Y is inclined with respect to the axial direction of the shaft portions 73 </ b> A and 73 </ b> B at both ends of the cutting tool 7 held at a predetermined position by the holding means 70 as an inclined facing operation. In this state, the one support hole 33A is opposed to the one shaft portion 73A of the blade 7. Next, as shown in FIG. 5 to FIG. 7, as the insertion operation, the A rotation shaft 3 </ b> A is rotated and the Y movement shaft 3 </ b> Y and the Z movement shaft 3 </ b> Z are moved, so One shaft portion 73A of the cutting tool 7 is inserted into one support hole 33A while changing so that the axial directions of 73A and 73B are parallel to each other. Thereafter, as shown in FIG. 8, as a support operation, the distance between the pair of support holes 33A and 33B of the blade mounting portion 31 is reduced, and the shaft portions 73A and 73B at both ends of the blade 7 are transferred to the pair of support holes 33A and 33B. Support.

Further, the rotary machine 1 performs the following operations to detach the blade 7 from the blade mounting portion 31.
First, as a holding operation, the blade 7 attached to the blade attachment portion 31 is held by the holding means 70 (see FIG. 8). Next, as the other extraction operation, the distance between the pair of support holes 33A and 33B of the blade mounting portion 31 is increased, and the other shaft portion 73B of the blade 7 is extracted from the other support hole 33B (FIGS. 7 and 6). FIG. 5). Thereafter, as the one-side extraction operation, the A rotation shaft 3A is rotated and the Y movement shaft 3Y and the Z movement shaft 3Z are moved, so that the Y movement axis with respect to the axial direction of the shaft portions 73A and 73B at both ends of the blade 7 is obtained. By changing 3Y to be inclined, one shaft portion 73A of the blade 7 is extracted from one support hole 33A (see FIG. 4).

Below, it demonstrates in full detail with reference to FIGS. 1-13 about the rotary machine 1 of this example.
As shown in FIG. 9, the rotary machine 1 of the present example is a vertical machine in which the cutting tool mounting portion 31 is arranged in the horizontal direction, the X movement axis 3X is arranged in the depth direction D, and the Z movement axis 3Z is arranged in the vertical direction H. This is a rotary machine for the mold.
The rotary machine 1 of the present example is a hobbing machine 1 that rotates a cutting tool mounting portion 31 to cut a tooth surface on the outer periphery of a cylindrical workpiece 8. On the hobbing machine 1, a rotating device 2 that holds and rotates the cylindrical workpiece 8, and the cylindrical workpiece 8 before processing is carried into the rotating device 2, and the processed cylindrical workpiece 8 is carried out from the rotating device 2. A turning loader (conveying device) 4 is provided.

The holding means 70 of this example is a pallet 70 configured to be held by the gripper 5 of the turning loader 4 and hold the cutting tool 7 in a horizontal state.
The swivel loader 4 is configured such that a plurality of grippers 5 are disposed around a swivel center axis 401 of the swivel center column 41 and the plurality of grippers 5 are sequentially opposed to the rotating device 2. The gripper 5 of this example is configured to retract the pair of sandwiching portions 51 from the blade 7 of the processing device 3 and the blade mounting portion (hob head) 31 that supports the blade 7 when facing the rotating device 2.

The hobbing machine 1 according to the present embodiment is configured such that the turning loader 4 can carry the cylindrical workpiece 8 with respect to the hobbing machine 1 and change (replace) the rotation support jig 6 and the cutting tool 7. In the processing device 3 and the rotation device 2 of this example, gear cutting is performed on the cylindrical workpiece 8 having a circular cross section to produce a helical gear as a product.
The processing device 3 is configured so that the rotation center axis 301 of the blade mounting unit 31 that rotates the mounted tool 7 is inclined in the horizontal direction. The rotating device 2 is configured to rotate around a rotation center axis 201 directed in the vertical direction. The processing device 3 cuts the outer periphery of the cylindrical workpiece 8 rotated by the rotating device 2 with the rotating blade 7 to process the helical tooth surface 81. The processing device 3 is configured to move the cutting tool mounting portion 31 back and forth and up and down while being rotatable. The processing device 3 is disposed on an extension in the direction in which the rotating device 2 is disposed with respect to the turning loader 4.

  As shown in FIGS. 2 and 4, the blade mounting portion 31 in the processing apparatus 3 includes one side support portion 32A in which one support hole 33A is formed, and the other side support portion 32B in which the other support hole 33B is formed. have. The one-side support portion 32A is formed in a cylindrical shape that rotates around the axial direction in which the one support hole 33A is formed. The one side support portion 32A is provided with a drive source 35 such as a motor for rotating the support portion 32A. One shaft portion 73A of the cutting tool 7 inserted into one support hole 33A is drawn into the back side of one support hole 33A, and one shaft portion 73A is inserted into one support hole 33A. A retracting cylinder 34A for locking is provided. The other side support portion 32B is formed in a cylindrical shape that rotates around the axial direction in which the other support hole 33B is formed. The other side support portion 32B is pressed to press the other side support portion 32B against the other shaft portion 73B of the blade tool 7 so that the other shaft portion 73B of the blade tool 7 is pushed into the back side of the other support hole 33B. A contact cylinder 34B is provided.

As shown in FIGS. 7 and 8, the pressing cylinder 34B moves to a mounting position 341 that allows the other side support portion 32B to approach the one side support portion 32A and a separation position 342 that separates the other side support portion 32A from the one side support portion 32A. It is configured to let you. The distance between the pair of support holes 33A and 33B of the blade mounting portion 31 can be changed by moving the pressing cylinder 34B between the mounting position 341 and the removal position 342.
As shown in FIG. 2, tapered inner peripheral surfaces 331 whose diameter decreases toward the back are formed in the opening portions of the pair of support holes 33 </ b> A and 33 </ b> B, and the ends of the pair of shaft portions 73 </ b> A and 73 </ b> B of the blade 7. The portion is formed with a tapered outer peripheral surface 731 which is brought into contact with the tapered inner peripheral surface 331 and performs center positioning of the blade 7 with respect to the pair of support holes 33A and 33B.

As shown in FIGS. 1 and 2, the Y moving shaft 3Y of the present example has a pair of support holes 33A and 33B formed on the entire blade mounting portion 31 by the one side support portion 32A and the other side support portion 32B. It is configured to move in the axial direction.
The one side support portion 32A and the other side support portion 32B are disposed with their axial directions facing the horizontal direction at fixed positions. The Y moving shaft 3Y is disposed with its axial direction oriented in the horizontal direction at a fixed position.

The A rotation shaft 3A rotates around the rotation center axis line provided in the horizontal direction orthogonal to the axial direction of the cutting tool mounting portion 31 and the Y moving shaft 3Y, and the axial direction of the cutting tool mounting portion 31 and the Y moving shaft 3Y is changed. It is comprised so that it may incline with respect to a horizontal direction.
The Z moving shaft 3Z is configured to move the A rotating shaft 3A, the Y moving shaft 3Y, and the blade mounting portion 31 in the vertical direction (vertical direction) H. The X movement axis 3X is configured to move the Z movement axis 3Z, the A rotation axis 3A, the Y movement axis 3Y, and the cutting tool mounting portion 31 in a direction parallel to the rotation center axis of the A rotation axis 3A. The X movement axis 3X is configured to slide on the bed 30.

The mechanical parts constituting the Z moving shaft 3Z and the X moving shaft 3X are configured to slide linearly by providing a linear guide. The Y moving shaft 3Y, the A rotating shaft 3A, the X moving shaft 3X, and the Z moving shaft 3Z can be controlled so as to be arbitrarily changed in position by receiving a driving force from a motor or the like.
The movement / rotation operation of the Y moving shaft 3Y, the A rotating shaft 3A, the X moving shaft 3X, and the Z moving shaft 3Z is online with respect to the blade 7 held at a predetermined position in a control device that controls a motor or the like that drives these. Can be set by teaching.

  As shown in FIG. 9, the rotation device 2 is configured to rotate one rotation support shaft 21 provided on the rotation table by a rotation drive source, and the other rotation support shaft 22 is one rotation support shaft. It is designed to rotate in response to the rotation of 21. In the rotation device 2 of this example, the rotation center axis 201 is disposed in the vertical direction, one rotation support shaft 21 is disposed on the lower side in the vertical direction, and the other rotation support shaft 22 is disposed on the upper side in the vertical direction. It is arranged. The other rotation support shaft 22 is attached to the turning center column 41 of the turning loader 4 so as to be movable up and down.

The swivel loader 4 of this example is configured to carry in / out any of the pallet 70 holding the cylindrical workpiece 8, the rotation support jig 6, and the cutting tool 7. Each gripper 5 is configured to sequentially rotate to an internal delivery position 501 facing the rotation device 2 and an external delivery position 502 located in a direction opposite to the direction in which the rotation device 2 is located with respect to the turning center column 41. ing.
Each gripper 5 of the present example is configured to supply the cylindrical workpiece 8 before processing with the rotating device 2, take out the cylindrical workpiece 8 after processing, and between the rotating device 2 by rotating the swing loader 4. The rotation support jig 6 is supplied and taken out, and the cutting tool 7 is supplied and taken out from the processing apparatus 3.

  As shown in FIG. 9, the turning loader 4 of this example is configured by arranging a plurality of grippers 5 around a turning center column 41 so as to be capable of turning. The turning loader 4 is configured to turn the entirety of the plurality of grippers 5 by a predetermined angle in the circumferential direction in which the grippers 5 are disposed by a driving source such as a motor. The turning center axis 401 of the turning center column 41 is directed in the vertical direction, and each gripper 5 is configured to turn around the turning center column 41 in the horizontal direction.

The grippers 5 of this example are disposed at four locations around the turning center column 41 at positions shifted by 90 ° from each other. Each gripper 5 is individually movable up and down with respect to the turning center column 41. The grippers 5 can also be arranged at equal intervals at two or three locations around the turning center support column 41, or at five or more locations.
Further, the turning loader 4 sets each height position of the gripper 5 at any one of the external delivery position 502 and the internal delivery position 501 and maintains each height position to maintain the external delivery position 502 and the internal delivery position. It is comprised so that it may turn to the other of 501.

As shown in FIG. 9, each gripper 5 can be individually slid up and down by an electric actuator 42 disposed on a turning center column 41 of the turning loader 4. A pair of linear guides 43 is disposed in the turning center column 41. Each gripper 5 receives a driving force from the electric actuator 42 and can slide up and down along the linear guide 43.
The electric actuator 42 and the pair of linear guides 43 are disposed on a base plate 44 provided on the turning center column 41. A plate-shaped cam plate 52 is attached to the electric actuator 42 and the pair of linear guides 43.

  As shown in FIGS. 9 and 10, each gripper 5 is configured such that a pair of sandwiching portions 51 that sandwich the cylindrical workpiece 8 are engaged with a sandwiching guide 53 formed on the cam plate 52. The sandwiching guide 53 is a linear parallel guide portion 531 that moves the pair of sandwiching portions 51 in a state of being parallel to each other, and a curved shape that opens the distal ends of the pair of sandwiching portions 51 to both sides at both end portions of the parallel guide portion 531. And a pair of opening guide portions 532. The pair of clamping portions 51 are movable along a parallel guide portion 531 to a clamping position where the cylindrical workpiece 8 is clamped, and a retreat position where the tip side is moved away from each other along the opening guide portion 532. It is. When the pair of sandwiching portions 51 of this example moves to the retracted position at the end of the opening guide portion 532, the tip end side is in a state of opening approximately 90 °.

  As shown in FIG. 12, the rotation support jig 6 is disposed on the same axis line as the one rotation support shaft 21 in the rotation apparatus 2 and the one jig portion 61 mounted on one rotation support shaft 21 of the rotation apparatus 2. And the other jig portion 62 attached to the other rotating support shaft 22. The other jig part 62 can be transported in combination with the one jig part 61. The rotation support jig 6 is conveyed (carried) to the rotation device 2 by the turning loader 4 in a state where the other jig part 62 is combined with the one jig part 61.

  As shown in the figure, in the rotation support jig 6, a center shaft part 621 that protrudes downward at the center position of the other jig part 62 is inserted into a center hole 611 formed at the center position of the one jig part 61. Thus, the one jig portion 61 and the other jig portion 62 are combined in a state where the center positioning is performed. A central hole is formed at the center of the cylindrical workpiece 8. When the cylindrical workpiece 8 is sandwiched between the one jig portion 61 and the other jig portion 62, the cylindrical workpiece 8 is inserted into the central hole of the cylindrical workpiece 8. The central shaft portion 621 is inserted into the central hole 611. On the other hand, the jig part 61 and the other jig part 62 are positioned at the center of the center shaft part 621 and the center hole 611 both when the cylindrical workpiece 8 is clamped and when the cylindrical workpiece 8 is not clamped. It is configured to perform and combine.

  As shown in FIG. 13, the cutting tool 7 of this example is held and stored on the pallet 70 before being mounted on the cutting tool mounting part 31 of the processing device 3. Each gripper 5 of the turning loader 4 is configured to hold the pallet 70. The pallet 70 includes a base portion 71 held by the gripper 5 and a blade holding portion 72 that is formed at a position offset from the center of the base portion 71 and holds the blade 7. The base portion 71 is formed in a disk shape so as to be easily gripped by each gripper 5. The blade holder 72 is configured to receive shaft portions at both ends of the blade 7 with the pair of receiving portions 721 having the axial direction oriented in the horizontal direction.

Moreover, as shown in FIG. 9, the cutting of the cutting tool 7 can be performed as follows.
Specifically, the gripper 5 that holds the empty pallet 70 at the internal delivery position 501 receives the used cutting tool 7 from the processing apparatus 3 on the empty pallet 70, and at the external delivery position 502. 5 receives a pallet 70 which is on an external conveyance table facing the conveyance loader 4 and holds the cutting tool 7 before use. Then, the turning loader 4 turns to move the gripper 5 holding the pallet 70 holding the used cutting tool 7 to the external delivery position 502 and to hold the pallet 70 holding the cutting tool 7 before use. The gripper 5 is moved to the internal delivery position 501. Thereafter, the pallet 70 holding the used cutting tool 7 is returned to the external conveyance table, and the cutting tool 7 is mounted on the cutting tool mounting portion 31 of the processing apparatus 3 from the pallet 70 holding the used cutting tool 7. To do.

As shown in FIG. 10, the gripper 5 is configured to sandwich the disk-shaped outer periphery of the pallet 70 of the cylindrical workpiece 8, the rotation support jig 6, or the cutting tool 7 by a pair of sandwiching portions 51. The gripper 5 is configured to be able to grip a plurality of types of cylindrical workpieces 8 having different outer diameters by changing the interval between the pair of sandwiching portions 51.
As shown in FIG. 11, the pair of sandwiching portions 51 in the gripper 5 includes a V-shaped inner side surface 513 that abuts on two places of the cylindrical workpiece 8, and a flange portion 514 that protrudes at the lower end position of the inner side surface 513. ing. The gripper 5 is configured to sandwich the cylindrical workpiece 8 by the inner side surfaces 513 of the pair of clamping portions 51 and position the cylindrical workpiece 8. In each clamping part 51, a plurality of engaging parts 515 that are vertically overlapped and engaged with each other at both lateral ends of the V-shaped inner surface 513 when holding the cylindrical workpiece 8 having a small outer diameter. Is formed.

As shown in FIG. 12, when holding the one jig part 61 combined with the other jig part 62 on the upper side by a pair of holding parts 51, the one jig part is formed by the V-shaped inner surface 513 of each holding part 51. The flange portion 66 formed on the outer periphery of the one jig portion 61 is hooked by the flange portion 514 and the one jig portion 61 and the other jig portion 62 can be prevented from falling.
As shown in FIG. 13, when the pallet 70 is clamped by the pair of clamping parts 51, the outer periphery of the pallet 70 is sandwiched by the V-shaped inner side surface 513 of each clamping part 51, and the lower corner of the pallet 70 is The pallet 70 can be prevented from falling by being hooked (see FIG. 11).

Next, the operation of attaching / detaching the blade 7 to / from the blade mounting portion 31 of the hobbing machine 1 will be described.
In the hobbing machine 1 of this example, as shown in FIG. 2, in particular, the opening (distance) L1 between the pair of support holes 33A, 33B in the blade mounting portion 31 is longer than the length L2 of the blade 7 supported by this. When it is short, it is devised to easily change (change) the cutting tool 7.
The hobbing machine 1 mounts the cutting tool 7 on the cutting tool mounting part 31 by moving and rotating the cutting tool mounting part 31 with respect to the cutting tool 7 held at a predetermined position by the pallet 70 held by the gripper 5. When attaching the cutting tool 7 to the cutting tool mounting part 31, as shown in FIG. 2, the pallet 70 holding the cutting tool 7 before use is held by the gripper 5 at the external delivery position 502, and the turning loader 4 is turned. The gripper 5 is moved to the internal delivery position 501.

  Next, as shown in FIG. 3, the hobbing machine 1 operates the X moving shaft 3 </ b> X to bring the cutting tool mounting portion 31 closer to the pallet 70 held by the gripper 5 at the internal delivery position 501 of the turning loader 4. At this time, the blade 7 on the pallet 70 held by the gripper 5 is held in a horizontal state. Further, at this time, as shown in FIG. 4, the rotation angle of the A rotation shaft 3A is adjusted, and the Y movement shaft 3Y and the blade mounting portion 31 are inclined about 20 ° with respect to the horizontal direction. The inclination angle of the Y moving shaft 3Y and the blade mounting portion 31 can be set to 10 to 30 °.

  Then, as shown in the figure, the hobbing machine 1 performs the inclined facing operation with respect to the axial direction of the shaft portions 73A and 73B at both ends of the blade 7 held at a predetermined position by the pallet 70 held by the gripper 5. In a state where the Y movement shaft 3Y is inclined, the one support hole 33A of the blade attachment portion 31 is opposed to the one shaft portion 73A of the blade 7. That is, a state is formed in which one support hole 33 </ b> A is diagonally opposed in the horizontal direction of one shaft portion 73 </ b> A of the blade 7. In the present example, one support hole 33 </ b> A forms a state facing one shaft portion 73 </ b> A of the blade 7 from obliquely below.

  Next, as shown in FIGS. 5 and 6, the hobbing machine 1 holds the position of the pallet 70 and the blade 7 as an insertion operation, and the one shaft portion 73A of the blade 7 is inserted into the one support hole 33A. In this manner, the A rotation shaft 3A is rotated and the Y movement shaft 3Y and the Z movement shaft 3Z are moved. This movement / rotation can be performed by repeating movement at an angle close to the horizontal direction and movement at an angle close to the vertical direction. Further, this movement / rotation is performed such that the center of one support hole 33A is moved to the center of one shaft portion 73A of the cutting tool 7 every time the inclination angle of one support hole 33A due to the operation of the A rotation shaft 3A approaches the horizontal direction. The one shaft portion 73A is inserted closer to the far side of the one support hole 33A.

As shown in FIG. 7, when the axial direction of the one support hole 33 </ b> A and the Y moving shaft 3 </ b> Y is set to a horizontal direction parallel to the axial direction of the blade 7, one shaft portion of the blade 7 is inserted into the one support hole 33 </ b> A. 73A is inserted.
Thereafter, as shown in FIG. 8, the hobbing machine 1 pulls one shaft portion 73A of the cutting tool 7 into one support hole 33A by the pull-in cylinder 34A and attaches the pressing cylinder 34B from the disengagement position 342 as a support operation. It moves to the position 341 and presses the other shaft part 73B of the cutting tool 7 to the other support hole 33B. In this way, the distance between the pair of support holes 33A and 33B of the blade mounting portion 31 is reduced, and the shaft portions 73A and 73B at both ends of the blade 7 are supported by the pair of support holes 33A and 33B.

On the other hand, the hobbing machine 1 holds the cutting tool 7 mounted on the cutting tool mounting part 31 by the pallet 70 gripped by the gripper 5, moves and rotates the cutting tool mounting part 31, and moves the cutting tool 7 from the cutting tool mounting part 31. Leave.
When the cutting tool 7 mounted on the cutting tool mounting part 31 is detached, the hobbing machine 1 performs an operation opposite to the operation of mounting the cutting tool 7 on the cutting tool mounting part 31. In removing the blade 7 from the blade mounting portion 31, the empty pallet 70 is gripped by the gripper 5 at the external delivery position 502, the turning loader 4 is turned, and the gripper 5 is moved to the internal delivery position 501.

  Next, the hobbing machine 1 adjusts the rotation angle of the A rotation shaft 3A so that the axial directions of the pair of support holes 33A and 33B of the blade mounting portion 31 are horizontal. Then, the X moving shaft 3 </ b> X is operated to bring the cutting tool mounting portion 31 closer to the pallet 70 held by the gripper 5 at the internal delivery position 501 of the turning loader 4. At this time, the blade 7 on the pallet 70 held by the gripper 5 is held in a horizontal state.

Next, the hobbing machine 1 operates the Z moving shaft 3Z as a holding operation to bring the blade 7 supported by the blade mounting portion 31 closer to the upper side of the pallet 70 gripped by the gripper 5 (see FIG. 8). And the state in which the blade 7 is held on the pallet 70 is formed.
Next, the hobbing machine 1 releases the pull-in of the one shaft portion 73A of the cutting tool 7 into the one support hole 33A by the pull-in cylinder 34A as the other pulling-out operation, and removes the pressing cylinder 34B from the mounting position 341. It moves to 342, and the pressing of the other shaft part 73B of the blade 7 to the other support hole 33B is released (see FIG. 7). In this way, the distance between the pair of support holes 33A and 33B of the blade mounting portion 31 is increased, and the other shaft portion 73B of the blade 7 is extracted from the other support hole 33B.

  Next, the hobbing machine 1 rotates the A rotating shaft 3A so as to extract one shaft portion 73A of the blade 7 from one support hole 33A while holding the positions of the pallet 70 and the blade 7 as one extraction operation. And the Y movement axis 3Y and the Z movement axis 3Z are moved (see FIGS. 6 and 5). This movement / rotation can be performed by repeating movement at an angle close to the horizontal direction and movement at an angle close to the vertical direction. Further, this movement / rotation is caused by the center of the one support hole 33A being the center of the one shaft portion 73A of the cutting tool 7 every time the axial direction of the one support hole 33A is inclined from the horizontal direction by the operation of the A rotation shaft 3A. The one shaft portion 73A is pulled out further to the near side in the one support hole 33A (see FIG. 4).

Then, the Y moving shaft 3Y and the blade mounting portion 31 are inclined by about 20 ° with respect to the axial direction of the shaft portions 73A and 73B on both sides of the blade 7 oriented in the horizontal direction, and the one through the support hole 33A. One shaft portion 73A of the blade 7 is extracted (see FIG. 4). The inclination angle of the Y moving shaft 3Y and the blade mounting portion 31 can be set to 10 to 30 °.
Thereafter, the hobbing machine 1 operates the X movement shaft 3 </ b> X to move the blade mounting portion 31 away from the blade 7 held on the pallet 70. The pallet 70 held by the gripper 5 and holding the cutting tool 7 is moved from the internal delivery position 501 to the external delivery position 502 by the turning of the turning loader 4.

As described above, in the hobbing machine 1 of this example, the cutting tool mounting portion 31 is moved and rotated to mount the cutting tool 7 on the cutting tool mounting portion 31 and to remove the cutting tool 7 from the cutting tool mounting portion 31. be able to. This eliminates the need for a dedicated robot / device for attaching and detaching the blade 7 and eliminates special capital investment. In addition, since the blade tool mounting portion 31 itself is moved and rotated to attach and detach the blade tool 7 to and from the blade tool mounting portion 31, there is no surrounding interference and the tool tool 7 can be quickly replaced (replaced).
Therefore, according to the hobbing machine 1 of the present example, the cutting tool 7 can be changed quickly without any special capital investment.

1 Hobbing machine (rotary processing machine)
DESCRIPTION OF SYMBOLS 3 Processing apparatus 31 Cutting tool mounting part 3A A rotating shaft 3X X moving shaft 3Y Y moving shaft 3Z Z moving shaft 33A One supporting hole 33B The other supporting hole 7 Cutting tool 70 Pallet (holding means)
73A One shaft portion 73B The other shaft portion

Claims (3)

A blade mounting portion having a pair of support holes for supporting the shaft portions on both sides of the blade, and capable of changing a distance between the pair of support holes;
A Y movement axis for moving the blade mounting portion in the axial direction of the pair of support holes;
An A rotating shaft that rotates the Y moving shaft and the blade mounting portion by a predetermined angle;
An X movement axis for moving the A rotation axis, the Y movement axis, and the blade mounting portion in a first direction parallel to the axis of the A rotation axis;
In a rotary processing machine comprising at least the A rotation axis, the Y movement axis, and a Z movement axis that moves the blade mounting portion in a second direction orthogonal to the first direction,
One support hole is made to face one shaft portion of the blade tool in a state where the Y movement axis is inclined with respect to the axial direction of the shaft portions on both sides of the blade tool held at a predetermined position by the holding means. Inclined facing operation,
Rotating the A rotation axis and moving at least the Y movement axis and the Z movement axis so that the Y movement axis and the axial direction of the cutting tool are parallel to each other, and the one support hole An insertion operation of inserting one shaft portion of the cutting tool into,
The distance between the pair of support holes of the blade mounting portion is reduced, and the support operation of supporting the shaft portions at both ends of the blade tool in the pair of support holes is performed. Rotating machine. A blade mounting portion having a pair of support holes for supporting the shaft portions on both sides of the blade, and capable of changing a distance between the pair of support holes;
A Y movement axis for moving the blade mounting portion in the axial direction of the pair of support holes;
An A rotating shaft that rotates the Y moving shaft and the blade mounting portion by a predetermined angle;
An X movement axis for moving the A rotation axis, the Y movement axis, and the blade mounting portion in a first direction parallel to the axis of the A rotation axis;
In a rotary processing machine comprising at least the A rotation axis, the Y movement axis, and a Z movement axis that moves the blade mounting portion in a second direction orthogonal to the first direction,
Holding operation for holding the cutting tool mounted on the blade mounting unit by a holding means;
The other extraction operation of expanding the distance between the pair of support holes of the blade mounting portion and extracting the other shaft portion of the blade from the other support hole;
Rotate the A rotation axis and move at least the Y movement axis and the Z movement axis so that the Y movement axis is inclined with respect to the axial direction of the shaft portions on both sides of the cutting tool. A rotary processing machine configured to perform one extraction operation of extracting one shaft portion of the blade tool from one of the support holes. The rotary machine according to claim 1 or 2, wherein the rotary machine is a hobbing machine that rotates the cutting tool mounting portion to cut a tooth surface on the outer periphery of a cylindrical workpiece.
A rotating device that holds and rotates the cylindrical workpiece on the hobbing machine, and transports the cylindrical workpiece before processing into the rotating device and unloads the cylindrical workpiece after processing from the rotating device. An apparatus, and
The rotary processing machine according to claim 1, wherein the holding means is a pallet configured to be held by a gripper of the transfer device and hold the cutting tool in a horizontal state.

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