JP2015054364A - Blade tool palette for rotary machining machine, and blade tool attaching/detaching method in rotary machining machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blade tool palette for a rotary machining machine capable of shortening time required for replacing a blade tool with a simple device structure, and a blade tool attaching/detaching method in the rotary machining machine.SOLUTION: A blade tool palette 70 for a rotary machining machine is used for a rotary machining machine equipped with a rotary device, a machining device, and a carrying device; and clipped by a gripper 51 provided on the carrying device so as to vertically move when a blade tool 7 is carried in/out to/from the machining machine. The blade tool palette 70 has a palette base portion 71 clipped by the gripper 51, and a palette supporting portion 72 provided at a position offset in a lateral direction from a clip center of the palette base portion 71 and supporting the blade tool 7. At a center portion including the clip center of the palette base portion 71, an insertion hole 711 is formed, in which a lower jig portion attached to the rotary device is inserted when the blade tool 7 is delivered between a blade tool gripping portion 31 and the palette supporting portion 72.

Description

  The present invention relates to a pallet for holding a cutting tool used in a rotary processing machine and a blade attaching / detaching method in the rotary processing machine.

In a rotary machine that performs cutting with a cutting tool of a processing device with respect to a work rotated by a rotating device, the cutting tool is replaced according to the type of the workpiece to be processed. The replacement of the cutting tool is performed using a dedicated robot or the like installed separately from the apparatus that transports the workpiece.
Further, for example, the hand of Patent Document 1 has a structure in which a carry-in hand for carrying a work into the machining area and a carry-out hand for carrying the work out of the machining area are turned by a turning shaft. The loading hand is provided with a tool loading and holding claw for tool replacement in addition to the loading and holding claw for gripping the workpiece. A tool carry-out gripping claw is provided.

JP 2002-66861 A

  However, when a dedicated robot or the like is used to replace the cutting tool, the tip of the robot or the like may interfere with the surroundings. For this reason, it is difficult to replace the blade in a short time. Moreover, in the hand of the said patent document 1, the tool carrying-in holding nail and the tool carrying-out holding nail which hold | grip a tool are used other than the carrying-in holding nail and the carrying-out holding nail which hold | grip a workpiece | work. This complicates the structure of the hand.

  The present invention has been made in view of such a background, and provides a blade pallet for a rotary machine and a method for attaching and detaching the blade in the rotary machine that can reduce the time required for replacing the blade with a simple device structure. It was obtained by trying.

One aspect of the present invention includes a rotating device that grips and rotates an upper jig portion and a lower jig portion for supporting a workpiece from above and below, and a rotating device that grips the cutting tool on the cutting tool gripping portion and rotates by the rotating device. The cutting tool is used in a rotary processing machine comprising: a processing device that processes a workpiece; and a conveying device that carries the workpiece in and out of the rotating device and carries the blade in and out of the blade gripping portion. A cutting tool pallet sandwiched by a gripper provided in the conveying device and capable of moving up and down,
The cutting tool pallet has a pallet base portion held by the gripper, and a pallet support portion that is provided at a position offset laterally from the holding center of the pallet base portion and supports the cutting tool,
In the center part including the sandwiching center of the pallet base part, when the blade tool is delivered between the blade tool gripping part and the pallet support part in a state where the pallet base part is sandwiched by the gripper, An cutting tool pallet for a rotary processing machine, wherein an insertion hole into which a lower jig portion is inserted is formed.

In another aspect of the present invention, a rotating device that grips and rotates an upper jig portion and a lower jig portion for supporting a workpiece from above and below, and a blade tool that is held by the blade gripping portion and rotated by the rotating device. In a rotary processing machine comprising: a processing device that processes the workpiece; and a conveying device that carries the workpiece in and out of the rotating device and carries the blade in and out of the blade holding portion. A method for attaching and detaching the blade,
When carrying in and out the blade, using a blade pallet sandwiched by a gripper provided in the transport device and movable up and down,
The cutting tool pallet has a pallet base portion held by the gripper, and a pallet support portion that is provided at a position offset laterally from the holding center of the pallet base portion and supports the cutting tool,
An insertion hole into which the lower jig part is inserted is formed in the center part including the sandwiching center of the pallet base part,
In the state where the pallet base portion is sandwiched between the grippers, the blade tool placed on the pallet support portion is attached to the blade tool grip portion, or the blade tool gripped by the blade tool grip portion is attached to the pallet support portion. A blade tool attaching / detaching method in a rotary processing machine, wherein the gripper is lowered to a position where the lower jig part is inserted into the insertion hole so that the pallet support part faces the tool holding part when the tool is removed. It is in.

In the blade pallet for the rotary processing machine, the structure of the blade pallet used for loading and unloading the blade tool when the blade tool is attached to and detached from (replaced with) the blade gripping portion in the processing device of the rotary machine. I am devised.
In the rotary processing machine, a conveying device is used that carries in and out the workpiece with respect to the upper jig portion and the lower jig portion of the rotating device and carries in and out the blade with respect to the blade holding portion of the processing device. The cutting tool pallet is used when loading and unloading the cutting tool, and includes a pallet base portion that is sandwiched by a gripper provided in the conveying device and capable of moving up and down, and a pallet support portion that supports the cutting tool. Yes. An insertion hole into which a lower jig portion mounted on the lower support portion of the rotating device can be inserted is formed in the center portion including the clamping center of the pallet base portion.

In the rotary processing machine, the workpiece before being processed is carried into the rotating device on which the upper jig portion and the lower jig portion are mounted by the transfer device, and the workpiece supported from above and below by the upper jig portion and the lower jig portion. The workpiece is processed by a blade that is rotated by a rotating device and is gripped by the blade gripping portion of the processing device. And the workpiece after a process is carried out from an upper jig part and a lower jig part by a conveying apparatus.
When exchanging the cutting tool according to changes in the type of workpiece to be processed, etc., the pallet base part of the cutting tool pallet is held by the gripper of the conveying device, and this cutting tool pallet is held on the upper support part of the rotating device. Carry in between the jig part and the lower jig part in the lower support part. At this time, the pallet support portion faces the cutting tool gripping portion of the processing apparatus, and the insertion hole of the pallet base portion faces above the lower jig portion.

  Then, when delivering (removing) the cutting tool from the cutting tool gripping part to the cutting tool pallet, the gripper that holds the cutting tool pallet is lowered with respect to the cutting tool gripping part of the processing apparatus. At this time, the gripper can be lowered to the position where the lower jig portion of the rotating device is inserted into the insertion hole of the pallet base portion. Thereby, the blade gripping part and the pallet support part can be quickly brought close to each other by using the operation of the gripper up and down. Therefore, the time required for removing the blade from the blade gripping portion can be shortened.

  In addition, a blade pallet, in which another blade attached to the blade gripping part is supported by the pallet support part, is carried between the upper jig part in the upper support part and the lower jig part in the lower support part by the gripper. To do. Then, in the same manner as when the blade is removed, another blade can be attached from the blade pallet to the blade gripping portion. Therefore, the time required for attaching the blade to the blade gripping part can be shortened.

  In addition, the cutting tool can be exchanged using a transfer device that carries in and out the workpiece, and the cutting tool can be exchanged without adding a special device. Furthermore, by exchanging the blade using the conveying device, it is possible to easily avoid the blade pallet and the blade from interfering with surrounding processing devices, rotating devices, and the like.

Therefore, according to the cutting tool pallet for the rotary machine, the time required for exchanging the cutting tool can be shortened with a simple structure of the device.
In addition, according to the blade attaching / detaching method in the rotary machine, the time required for exchanging the blade can be shortened by the simple structure of the device as in the invention of the blade pallet.

The front view which shows the rotary processing machine concerning an Example. The perspective view which shows the blade pallet and gripper concerning an Example. The perspective view which shows the blade tool pallet and gripper which support a blade tool concerning an Example. The figure which shows the blade tool pallet by which the lower jig part was inserted in the insertion hole of the pallet base part concerning an Example. The figure which shows the other blade tool pallet by which the lower jig part was inserted in the insertion hole of the pallet base part concerning an Example. The perspective view which shows the rotary processing machine of the state which conveys a workpiece | work by the conveying apparatus concerning an Example. The front view which shows the rotary processing machine of the state which carries in / out the workpiece support jig | tool concerning an Example.

A preferred embodiment of the above-described blade pallet for a rotary machine and a method for attaching / detaching the blade in the rotary machine will be described.
In the blade pallet for the rotary machine and the blade attachment / detachment method in the rotary machine, the conveying device has a plurality of grippers around the turning center axis, and the plurality of grippers are sequentially opposed to the rotation device. The processing apparatus is configured to grip a hob cutter as the blade tool by the blade tool grip portion and form a helical tooth surface on the outer peripheral surface of the workpiece, and the pallet support portion The hob cutter may be configured to support the hob arbor at both ends of the hob cutter with the central axis of the hob cutter directed in the horizontal direction.
In this case, the blades can be replaced more rapidly by using a plurality of grippers in the transport device. Moreover, in a hobbing machine or a gear grinding machine that forms a helical tooth surface on the outer peripheral surface of the workpiece, the cutting tool can be replaced quickly and easily.

Hereinafter, embodiments of a blade pallet for a rotary machine and a method for attaching and detaching a blade in the rotary machine will be described with reference to the drawings.
As shown in FIGS. 1 and 6, the blade pallet 70 for the rotary machine of this example is used in the rotary machine 1. The rotary processing machine 1 includes a rotating device 2 that grips and rotates the upper jig portion 62 and the lower jig portion 61 for supporting the workpiece 8 from above and below, and a rotating device that grips the cutting tool 7 on the cutting tool gripping portion 31. 2 is provided with a processing device 3 for processing the workpiece 8 rotated by 2 and a conveying device 4 for carrying the workpiece 8 in and out of the rotating device 2 and carrying in and out the blade 7 with respect to the blade gripping portion 31. The blade pallet 70 is configured to be clamped by a gripper 51 provided in the transport device 4 and movable up and down when the blade 7 is carried in and out.

  As shown in FIGS. 2 and 3, the cutting tool pallet 70 is provided with a pallet base portion 71 held by the gripper 51 and a pallet that is provided at a position offset laterally from the holding center of the pallet base portion 71 and supports the cutting tool 7. And a support portion 72. An insertion hole 711 penetrating vertically is formed in the center portion including the sandwiching center of the pallet base portion 71. As shown in FIG. 4, the insertion hole 711 has a lower jig portion when the blade tool 7 is transferred between the blade gripping portion 31 and the pallet support portion 72 with the pallet base portion 71 held between the grippers 51. 61 can be inserted.

Below, it explains in full detail with reference to FIGS. 1-7 about the blade tool pallet 70 for rotary processing machines of this example, and the blade tool attachment / detachment method in the rotary processing machine 1. FIG.
As shown in FIG. 6, the processing device 3 and the rotation device 2 of this example constitute a hobbing machine that cuts a helical tooth surface on the outer periphery of the workpiece 8. In the processing device 3 and the rotating device 2, a helical gear is manufactured. The helical gear can be a helical gear that is used with the axial directions of gears meshing with each other being parallel, or a screw gear that is used with the axial directions of gears meshing with each other being orthogonal. The cutting tool 7 of this example is a hob cutter for cutting a helical tooth surface on the outer periphery of the workpiece 8.
The processing device 3 and the rotation device 2 may be a gear grinding machine that performs grinding on a helical tooth surface formed on the outer periphery of the workpiece 8. In this case, the cutting tool 7 can be a rotating grindstone for grinding a helical tooth surface.

As shown in FIGS. 1 and 6, the processing device 3 is configured by inclining a rotation center axis 301 of a blade holding part (hob shaft) 31 on which the blade 7 is mounted with respect to the horizontal direction. The rotating device 2 is configured to rotate around a rotation center axis 201 along the vertical direction.
The processing device 3 is capable of rotating the cutting tool 7 around its shaft portion, and enabling the cutting tool gripping portion 31 to move back and forth, left and right, and up and down, and to turn in a direction perpendicular to the shaft portion. . The cutting tool gripping portion 31 is configured to grip a hob arbor 73 that is a shaft portion on both sides of the cutting tool 7. The processing device 3 is configured to move the blade holding part 31 forward, up and down, and turn, and to attach the blade 7 in the pallet support part 72 of the blade pallet 70 sandwiched between the grippers 51 to the blade holding part 31. .

  The rotating device 2 is configured to support the workpiece 8 up and down via a workpiece support jig 6. The jig support portion 21 of the rotating device 2 includes an upper support portion 212 and a lower support portion 211. The workpiece support jig 6 is divided into an upper jig portion 62 to be attached to the upper support portion 212 in the rotating device 2 and a lower jig portion 61 to be attached to the lower support portion 211 in the rotating device 2. It is comprised so that may be pinched. The workpiece 8 is supported by the rotating device 2 with the axial direction thereof being the vertical direction. The rotating device 2 is disposed in a space between the processing device 3 and the conveying device 4.

  The rotating device 2 is configured to support the workpiece 8 from the upper and lower sides via the workpiece supporting jig 6 and rotate around a rotation center axis 201 parallel to the turning center axis 401 of the transport device 4. The lower support portion 211 of the rotating device 2 is attached to the upper end portion of the rotary table 20 that is rotated by a drive source such as a motor. The upper support 212 of the rotating device 2 is provided on the swivel support column 41 of the transport device 4 so as to be slidable up and down by an actuator.

  As shown in FIGS. 1 and 6, the transport device 4 is configured by turning a turning loader portion 42 on a turning support column portion 41 through which a turning center axis 401 passes. Each gripper 51 is disposed on the turning loader unit 42 so as to be movable in the vertical direction by being driven by an actuator. Each gripper 51 is configured to sandwich the workpiece 8 by a pair of sandwiching portions 511 that are driven by other actuators to open and close in the lateral direction. The turning center axis 401 of the turning support column 41 is directed in the vertical direction, and each gripper 51 is configured to turn around the turning support portion 41 in the horizontal direction by the turning loader unit 42.

  As shown in FIGS. 2 and 3, the rotary processing machine 1 uses the transfer device 4 to transfer the workpiece 8, change the workpiece support jig 6 that supports the workpiece 8, and change the blade 7. Is made possible. Each gripper 51 of the transport device 4 is configured to sandwich the lower jig part 61 on which the upper jig part 62 is placed or the blade tool palette 70 on which the cutting tool 7 is placed, in addition to sandwiching the workpiece 8. ing. Each gripper 51 is configured to be able to hold a plurality of types of workpieces 8, lower jig parts 61, and blade pallets 70 having different outer diameters by varying the distance between the pair of holding parts 511. The sandwiching inner side surfaces 512 of the pair of sandwiching portions 511 are formed in a V shape in which inclined surfaces come into contact with two places in the circumferential direction in order to facilitate sandwiching of the workpiece 8, the lower jig portion 61, and the blade pallet 70. Yes.

  As shown in FIGS. 3, 6, and 7, the conveying device 4 is a swivel loader that is capable of swiveling so that a plurality of grippers 51 disposed at the same radial distance from the swivel center axis 401 are sequentially opposed to the rotating device 2. It is. Each gripper 51 can directly and directly hold the workpiece 8 and the workpiece support jig 6. Each gripper 51 can indirectly hold the blade 7 held on the blade pallet 70. The conveying device 4 holds the workpiece 8, the workpiece support jig 6 or the blade pallet 70 between the grippers 51, and turns the turning loader portion 42 to turn the workpiece 8, the workpiece supporting jig 6 or the rotary device 2 between them. The blade pallet 70 is configured to be delivered.

The plurality of grippers 51 respectively grip the workpiece 8, the workpiece support jig 6, or the blade pallet 70 from directions orthogonal to the turning center axis 401 of the transport device 4 and the rotation center axis 201 of the rotating device 2. The lower support part 211 and the upper support part 212 are configured to pass through.
The grippers 51 of this example are provided at four positions that are shifted from each other in the circumferential direction of 90 ° in the circumferential direction of the turning loader portion 42. The grippers 51 can also be provided at two or three locations around the turning loader portion 42, or at five or more locations.

  As shown in FIGS. 2 and 3, the pallet base portion 71 of the blade pallet 70 is formed in a disk shape so as to be easily gripped by each gripper 51. The pallet support part 72 is provided at a position offset laterally and upward from the sandwiching center of the pallet base part 71. The pallet support part 72 is configured to receive the hob arbor 73 at both ends of the blade 7 with the center axis oriented in the horizontal direction by a pair of receiving parts 721. The pallet support portion 72 is disposed outside the turning radius region of the tip portion of the gripper 51 in a state where the blade pallet 70 is gripped by the gripper 51.

  As shown in FIG. 4, the pallet support portion 72 of the blade pallet 70 of this example is located above the insertion hole 711 of the pallet base portion 71. The upper end portion of the lower jig portion 61 of this example is inserted into the insertion hole 711 of the pallet base portion 71 and does not protrude upward from the pallet base portion 71. With this configuration of the blade pallet 70, the pallet support portion 72 and the blade 7 of the blade pallet 70 that are sandwiched by the gripper 51 and swiveled by the swivel loader portion 42 do not protrude as much as possible outside the swivel radius region at the tip of the gripper 51. Can be.

  As shown in FIG. 5, the pallet support portion 72 of the blade pallet 70 may be provided by being offset in the lateral direction so as to avoid the upper side of the insertion hole 711 of the pallet base portion 71. In this case, the upper end portion of the lower jig portion 61 is inserted into the insertion hole 711 of the pallet base portion 71 and protrudes above the pallet base portion 71. With this configuration of the blade pallet 70, the blade pallet 70 sandwiched between the grippers 51 can be lowered to a position as low as possible.

In the rotary processing machine 1, the workpiece 8 is processed by the cutting tool 7 in the cutting tool gripping portion 31 of the processing apparatus 3 as follows.
As shown in FIG. 6, when the work 8 is carried into the rotating device 2, the rotating device 2 is provided with a work support jig 6 corresponding to the work 8 to be processed, the gripper 51 holding and turning loader unit in the transport device 4. 42 is turned and mounted. Then, the work 8 is sandwiched between the grippers 51, and the work 8 is brought close to the rotating device 2 by turning of the turning loader unit 42. Next, the gripper 51 is moved up and down and the upper jig part 62 in the upper support part 212 is moved up and down to support the work 8 between the upper jig part 62 and the lower jig part 61 in the rotating device 2. Next, the cutting tool 7 in the processing device 3 processes the workpiece 8 rotated by the rotating device 2. Thereafter, when the workpiece 8 is unloaded from the rotating device 2, the workpiece 8 after being processed is sandwiched between the rotating device 2 and the gripper 51, and the turning loader unit 42 of the conveying device 4 is turned.

Next, a method for attaching and detaching the blade 7 to and from the processing device 3 of the rotary processing machine 1 and its operation and effect will be described.
As shown in FIGS. 1 and 3, when exchanging the cutting tool 7 according to the change of the type of the workpiece 8 to be processed, the pallet base portion 71 of the cutting tool pallet 70 is sandwiched by the gripper 51 of the conveying device 4. This blade pallet 70 is carried between the upper jig part 62 in the upper support part 212 of the rotating device 2 and the lower jig part 61 in the lower support part 211. At this time, the pallet support portion 72 faces the blade gripping portion 31 of the processing device 3, and the insertion hole 711 of the pallet base portion 71 faces above the lower jig portion 61.

  Then, as shown in FIG. 4, when the blade 7 is transferred (removed) from the blade gripping portion 31 to the blade pallet 70, the gripper 51 that holds the blade pallet 70 is lowered with respect to the blade gripping portion 31 of the processing device 3. At this time, the gripper 51 can be lowered into the insertion hole 711 of the pallet base portion 71 to a position where the lower jig portion 61 of the rotating device 2 is inserted. Thereby, the cutting tool grip part 31 and the pallet support part 72 can be quickly brought close to each other by using the movement of the gripper 51 in the vertical direction. Therefore, the time required for removing the blade 7 from the blade gripping portion 31 can be shortened.

  In addition, the tool pallet 70 in which another tool 7 attached to the tool gripping part 31 is supported by the pallet support part 72 is attached to the upper jig part 62 in the upper support part 212 and the lower support part 211 by the gripper 51. Carry in between the lower jig part 61. Then, in the same manner as when the blade 7 is removed, another blade 7 can be attached from the blade pallet 70 to the blade gripping portion 31. Therefore, the time required for attaching the blade 7 to the blade gripping portion 31 can be shortened.

  Further, the cutting tool 7 can be exchanged using the transfer device 4 that carries the workpiece 8 in and out, and the cutting tool 7 can be exchanged without adding a special device. Further, by exchanging the blade 7 using the transport device 4, it is possible to easily avoid the blade pallet 70 and the blade 7 from interfering with the surrounding processing device 3, the rotation device 2, and the like.

  Therefore, according to the blade pallet 70 for the rotary machine and the blade attachment / detachment method in the rotary machine 1 of this example, the time required to replace the blade 7 can be shortened by the simple structure of the device.

DESCRIPTION OF SYMBOLS 1 Rotating machine 2 Rotating device 211 Lower support part 212 Upper support part 3 Processing apparatus 31 Cutting tool gripping part 4 Conveying device 51 Gripper 6 Work support jig 61 Lower jig part 62 Upper jig part 7 Cutting tool 70 Cutting tool palette 71 Pallet base 711 Insertion hole 72 Pallet support 8 Workpiece

Claims (4)

A rotating device that grips and rotates the upper jig portion and the lower jig portion for supporting the workpiece from above and below, and a processing device that grips the cutting tool on the cutting tool gripping portion and processes the workpiece rotated by the rotating device. And a conveying device that carries in and out the workpiece with respect to the rotating device and carries in and out the blade with respect to the blade holding part, and when carrying in and out the blade, A blade pallet sandwiched between grippers provided in the transport device and movable up and down,
The cutting tool pallet has a pallet base portion held by the gripper, and a pallet support portion that is provided at a position offset laterally from the holding center of the pallet base portion and supports the cutting tool,
In the center part including the sandwiching center of the pallet base part, when the blade tool is delivered between the blade tool gripping part and the pallet support part in a state where the pallet base part is sandwiched by the gripper, A cutting tool pallet for a rotary machine, wherein an insertion hole into which a lower jig part is inserted is formed. The transport device has a plurality of grippers around a turning center axis, and is configured to sequentially oppose the plurality of grippers to the rotation device,
The processing device is configured to grip a hob cutter as the blade tool by the blade tool gripping portion and form a helical tooth surface on the outer peripheral surface of the workpiece,
2. The blade for a rotary machine according to claim 1, wherein the pallet support portion is configured to support the hob arbor at both ends of the hob cutter with the central axis of the hob cutter oriented in a lateral direction. palette. A rotating device that grips and rotates the upper jig portion and the lower jig portion for supporting the workpiece from above and below, and a processing device that grips the cutting tool on the cutting tool gripping portion and processes the workpiece rotated by the rotating device. And a conveying device that carries the workpiece in and out of the rotating device and carries the blade in and out of the blade holding portion, and a method of attaching and detaching the blade to and from the blade holding portion. There,
When carrying in and out the blade, using a blade pallet sandwiched by a gripper provided in the transport device and movable up and down,
The cutting tool pallet has a pallet base portion held by the gripper, and a pallet support portion that is provided at a position offset laterally from the holding center of the pallet base portion and supports the cutting tool,
An insertion hole into which the lower jig part is inserted is formed in the center part including the sandwiching center of the pallet base part,
In the state where the pallet base portion is sandwiched between the grippers, the blade tool placed on the pallet support portion is attached to the blade tool grip portion, or the blade tool gripped by the blade tool grip portion is attached to the pallet support portion. A blade tool attaching / detaching method in a rotary processing machine, wherein the gripper is lowered to a position where the lower jig part is inserted into the insertion hole so that the pallet support part faces the tool holding part when the tool is removed. . The transport device has a plurality of grippers around a turning center axis, and is configured to sequentially oppose the plurality of grippers to the rotation device,
The processing device is configured to grip a hob cutter as the blade tool by the blade tool gripping portion and form a helical tooth surface on the outer peripheral surface of the workpiece,
4. The cutting tool attachment / detachment in a rotary machine according to claim 3, wherein the pallet support part is configured to support hob arbors at both ends of the hob cutter with a central axis of the hob cutter directed in a lateral direction. Method.

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