JP2013184260A - Tool for machining workpiece, device for automatically machining workpiece, method for machining workpiece, program for machining workpiece, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool for machining a workpiece, which can allow a plurality of different surfaces to be machined of the workpiece to be machined continuously without changing the manner of holding the workpiece and which can achieve high-precision machining and a decrease in a product cost.SOLUTION: The tool 1 for machining the workpiece, which is used for fixing the workpiece, when the workpiece W is machined, and holding the workpiece to be freely attached thereto/detached therefrom, includes a rotary tool body 2 supported to be rotated freely around the axis thereof. The rotary tool body is stopped at a plurality of rotation angles and holds the workpiece at each of rotation angles in such a state that the surface W1 to be machined of the workpiece is exposed to the outside.

Description

  The present invention relates to a workpiece machining jig for fixing a workpiece when machining the workpiece. The present invention also relates to a workpiece automatic machining apparatus including the workpiece machining jig, a workpiece machining method, a workpiece machining program, and a recording medium on which the program is recorded.

In general, when a work such as drilling is performed on a work, the work is fixed with a dedicated jig board. At this time, for example, when processing the main plate (work) that constitutes the movement of a watch, in order to assemble a plurality of fine watch parts with high accuracy, dishing processing (saray processing), drilling processing, etc. are performed with high accuracy. There is a need to do.
Therefore, a method is known in which guide pins that can be inserted into guide holes formed in the ground plate are provided on the jig board side, and the ground plate is set on the jig board using the guide pins as a guide (see Patent Document 1).

JP-A-5-215869

  However, since the above-mentioned main plate is generally assembled with a large number of watch parts on both sides, and the winding stem is assembled from the side, the countersink is drilled and drilled on both sides. It is necessary to drill a hole for the winding stem on the surface. Therefore, when processing the base plate, side processing is necessary in addition to double-side processing, and it is necessary to prepare three dedicated jig boards corresponding to each processing (three-way processing).

As the processing method, for example, the ground plane is set on the first jig board and the front side is processed, and then the ground plane is set on the second jig board and the back side is processed. A process of setting the ground plate on the jig board 3 and processing the outer peripheral surface side was necessary. In particular, as for the processing on the front surface side and the processing on the back surface side, there is a processing performed after the processing on the opposite surface side is performed, so that it is necessary to perform holding change (replacement) of the base plate many times.
Therefore, it takes time to change the holding. Moreover, since this holding replacement is performed manually, it is practically difficult to perform the above processing continuously without an operator. For these reasons, it takes a lot of time and effort to finish a single ground plane, leading to an increase in product cost.

  In addition, since it is necessary to prepare three dedicated jig panels corresponding to the three-way machining, it is expensive to maintain and manage each jig board, and this also leads to an increase in product cost. End up. In addition, since the ground plate is set by guiding the guide pins of the jig board, the phase of the guide hole is shifted by a certain amount. In addition, this shift occurs every time the jig board is changed, resulting in a deterioration in the processing accuracy of the main plate.

The present invention has been made in view of such circumstances, and the object thereof is to continuously process a plurality of workpiece surfaces with different workpieces without changing the holding, and to achieve high-precision processing and product cost. It is to provide a workpiece processing jig that can be reduced.
Furthermore, it is providing the workpiece automatic processing apparatus provided with the said workpiece processing jig | tool, the workpiece processing method, a workpiece processing program, and the recording medium on which this program was recorded.

The present invention provides the following means in order to solve the above problems.
(1) A workpiece machining jig according to the present invention is a workpiece machining jig for fixing a workpiece when machining the workpiece, and holds the workpiece detachably and is supported rotatably around an axis. The rotary jig body is stopped at a plurality of rotation angles, and the workpiece is held in a state where the work surface of the workpiece to be processed at each rotation angle is exposed to the outside. It is characterized by that.

According to the workpiece machining jig according to the present invention, the rotating jig body holds the workpiece in a state in which the workpiece surface of the workpiece to be machined at each rotation angle is exposed to the outside. By stopping the rotating jig body at a plurality of arbitrarily selected rotation angles while holding the workpiece, for example, even if the processing positions are the same, a plurality of workpiece surfaces exposed at different rotation angles are processed. be able to.
Therefore, it is possible to continuously process a plurality of workpiece surfaces having different workpieces in a series of flows without changing the holding of the workpiece. In particular, since it is not necessary to change the holding of the workpiece, the machining accuracy associated with the holding change as in the conventional case is not reduced, and high-precision machining can be performed. In addition, since continuous processing can be performed efficiently without changing the holding, the processing quality can be improved and the product cost can be reduced.

(2) In the workpiece processing jig according to the present invention, the rotating jig body includes a mounting member on which the workpiece is mounted, a workpiece presser that presses the workpiece between the mounting members, A clamp portion that presses the workpiece press toward the mounting member and holds the workpiece by pressing, and the clamp portion is openable and closable, and the pressing and releasing thereof are switched according to the opening and closing operation. Is preferred.

In this case, since the work is pressed and held between the mounting member and the work holder using the clamp, the work can be held stably without being shaken during processing, and it can handle the processing load. can do. Therefore, it can be connected to highly accurate processing.
In addition, unlike the conventional setting method using a combination of the guide pin on the jig board side and the guide hole on the workpiece side, the setting method is based on pressing using the workpiece presser, which causes rattling when setting the workpiece. It is difficult to achieve high-precision processing in this respect as well. Further, since the workpiece can be held and released easily and smoothly by opening and closing the clamp portion, the workpiece can be set and exchanged smoothly.

(3) In the workpiece processing jig according to the present invention, a gap detection unit that detects a gap between the mounting member and the workpiece, and holding the workpiece based on a detection result by the gap detection unit. It is preferable to include a determination unit that determines the state.

  In this case, since the holding state of the workpiece can be determined, it is possible to perform machining only when the workpiece is reliably pressed and held by the workpiece pressing. Accordingly, it is possible to improve the reliability of fixing the workpiece and improve the processing quality effectively.

(4) In the workpiece processing jig according to the present invention, it is preferable that the mounting member is disposed so that the axis extends along the mounting surface.

  In this case, since the mounting surface of the mounting member on which the workpiece is mounted and the axis that is the rotation center line of the rotating jig body coincide, for example, even if the rotating jig body is rotated 180 degrees, The height of the mounting surface can be maintained at the same height. Therefore, the mounting surface can be used as a processing reference point when processing the workpiece, and it is easy to process the workpiece.

(5) In the workpiece processing jig according to the present invention, the workpiece is a plate-like workpiece in which the processing surface is a front surface, a back surface, and an outer peripheral surface, and the rotating jig body is a surface of the workpiece. It is preferable to hold the workpiece so that each of the back surface and the outer peripheral surface is exposed to the outside.

  In this case, three different surfaces (front surface, back surface, and outer peripheral surface) of the workpiece can be obtained without stopping the workpiece by changing the rotation angle of the rotating jig body at different rotation angles while holding the workpiece. Can be continuously processed in a series of flows. Therefore, it is suitable, for example, when the work is a main plate constituting a watch movement.

(6) A workpiece automatic machining apparatus according to the present invention includes the workpiece machining jig according to the present invention, and a machining mechanism for machining the workpiece surface of the workpiece fixed to the workpiece machining jig. It is characterized by that.

  According to the workpiece automatic machining apparatus according to the present invention, since the workpiece machining jig is provided, a series of flows on a plurality of different workpiece surfaces using the machining mechanism without changing the holding of the workpiece. It can be processed continuously. In particular, since it is not necessary to change the holding of the workpiece, the machining accuracy associated with the holding change as in the conventional case is not reduced, and high-precision machining can be performed. In addition, since continuous processing can be performed efficiently without changing the holding, the processing quality can be improved and the product cost can be reduced.

(7) The workpiece machining method according to the present invention includes a workpiece that is detachably held and supported so as to be rotatable about an axis, is stopped at a plurality of rotation angles, and is provided for machining at each rotation angle. Automatic workpiece machining comprising: a workpiece machining jig having a rotating jig body that holds the workpiece with the workpiece surface exposed to the outside; and a machining mechanism for machining the workpiece surface of the workpiece. A workpiece processing method using an apparatus, wherein the rotary jig body is stopped at a first rotation angle, and the workpiece is processed by the processing mechanism, and the rotary jig body is used as the first jig. And a second machining step of stopping the workpiece at a rotation angle different from the rotation angle of 1 and subjecting the workpiece to machining by the machining mechanism.

  According to the workpiece machining method of the present invention, a plurality of workpiece surfaces with different workpieces can be continuously machined in a series of flows without using the workpiece automatic machining apparatus without holding and changing the workpiece. In particular, there is no need to replace the workpiece, so there is no reduction in machining accuracy associated with conventional holding and replacement, high-precision machining can be performed, and machining can be performed efficiently and continuously. Can be improved and the product cost can be reduced.

(8) The workpiece machining program according to the present invention holds the workpiece detachably, is supported rotatably around the axis, is stopped at a plurality of rotation angles, and is provided for machining at each rotation angle. Automatic workpiece machining comprising: a workpiece machining jig having a rotating jig body that holds the workpiece with the workpiece surface exposed to the outside; and a machining mechanism for machining the workpiece surface of the workpiece. What is the first processing step of causing the computer of the apparatus to stop the rotating jig body at a first rotation angle and subject the workpiece to processing by the processing mechanism, and what is the first rotation angle of the rotating jig body? And a second machining step in which the workpiece is machined by the machining mechanism by stopping at a different rotation angle.

  According to the workpiece machining program of the present invention, the computer of the workpiece automatic machining apparatus can surely execute the first machining step and the second machining step. A plurality of different workpiece surfaces can be continuously processed in a series of flows.

(9) A recording medium according to the present invention is a computer-readable recording medium in which the workpiece machining program according to claim 8 is recorded.

  According to the recording medium of the present invention, for example, the continuous processing described above can be surely executed by installing it in a computer of an automatic workpiece processing apparatus. In particular, it can cope with the distribution of programs and the like.

  According to the present invention, it is possible to continuously process a plurality of workpiece surfaces having different workpieces without changing the holding, and it is possible to achieve high-precision processing and a reduction in product cost.

1 is a block diagram of an automatic workpiece machining apparatus according to the present invention. FIG. 2 is an overall top view of the workpiece machining jig shown in FIG. 1. It is a longitudinal cross-sectional view of the workpiece processing jig shown in FIG. FIG. 3 is a perspective view of the workpiece processing jig shown in FIG. 2. It is the perspective view which looked at the jig | tool for workpiece | work processing shown in FIG. 4 from the reverse direction. It is a perspective view of the workpiece | work fixed with the jig | tool for workpiece | work processing shown in FIG. FIG. 3 is an enlarged top view of a rotating block in the workpiece machining jig shown in FIG. 2. It is a longitudinal cross-sectional view of the rotation block shown in FIG. It is a top view of the mounting ring shown in FIG. It is sectional drawing along the AA line shown in FIG. It is sectional drawing along the BB line shown in FIG. It is sectional drawing along CC line shown in FIG. It is a top view of the pressing work shown in FIG. It is sectional drawing along the DD line shown in FIG. It is the top view which looked at the pressing work shown in FIG. 13 from the back side. It is a perspective view which shows the state which rotated the rotation jig body 90 degree | times from the state shown in FIG. It is a perspective view which shows the state which rotated the rotation jig body 90 degree | times further from the state shown in FIG.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
<Automatic workpiece machining equipment>
As shown in FIG. 1, an automatic workpiece machining apparatus 200 according to the present embodiment is an apparatus that automatically machines a plurality of different workpiece surfaces in a workpiece W, and includes a workpiece machining jig 1 and a plurality of workpieces W. The pallet (storage tray) 201 in which is stored and the unprocessed workpiece W stored in the pallet 201 are transported to the workpiece processing jig 1, and the workpiece W is placed in the pallet 201 again after the processing is completed. A conveyance robot 202 for conveyance, a machining mechanism 203 for machining the workpiece W fixed to the workpiece machining jig 1, and a control unit 95 for comprehensively controlling these components are provided.

  The transfer robot 202 is, for example, an articulated robot, and includes a hand unit having a plurality of claw units. The hand portion can grip the workpiece W freely using these claw portions. The workpiece processing jig 1 is reciprocally movable, for example, between a set position S1 where the workpiece W is attached and detached by the transfer robot 202 and a processing position S2 where the workpiece W is processed by the processing mechanism 203. Yes.

The processing mechanism 203 includes a plurality of processing tools (for example, processing drills having different diameters) 203a, and applies an additional force to the workpiece W fixed to the workpiece processing jig 1 that has moved to the processing position S2. The workpiece W can be machined based on machining data input in advance while appropriately replacing the tool 203a. At this time, the processing mechanism 203 is disposed so as to perform processing by approaching the workpiece W from one side.
Note that the cutting fluid is supplied to the workpiece processing jig 1 at an arbitrary timing in addition to the processing of the workpiece W. Thereby, removal of processing waste, cleaning of the workpiece W, cooling of the workpiece W during processing, and the like are possible.

The control unit 95 includes, for example, a determination unit 95a and a recording medium 95b, which will be described later, in addition to a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), various interfaces, and the like (not shown). Yes.
As an example of the operation of the control unit 95, for example, the CPU reads and executes the workpiece machining program in the present invention stored in the recording medium 95b, thereby performing the first machining step and the second machining step in the present invention described later. Running.

  The workpiece machining program is a program for controlling the workpiece automatic machining apparatus 1 to machine the workpiece W. This work machining program is recorded in the computer-readable recording medium 95b.

The “computer-readable recording medium” is a portable medium such as a flexible disk, a magneto-optical disk, a CD-ROM, or a semiconductor memory, and includes a drive device (for example, a CD-ROM drive device) or an interface ( For example, it is read via a USB interface or the like.
The “computer-readable recording medium” is not limited to the above-described portable medium, and is a storage unit such as a hard disk built in a computer system (including an OS and hardware such as peripheral devices). Also good.
Furthermore, a “computer-readable recording medium” means that a program is dynamically held for a short time, like a communication line when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. It is also possible to include one that holds a program for a certain time, such as a volatile memory inside a computer system that becomes a server or client in that case.

(Work processing jig)
Hereinafter, the configuration of the workpiece processing jig 1 will be described in detail.
The workpiece machining jig 1 is a jig for fixing the workpiece W when machining the workpiece W. As shown in FIGS. 2 to 5, the workpiece machining jig 1 holds the workpiece W detachably and rotates around the axis O <b> 1. A rotating jig body 2 that is rotatably supported, a support body 3 that rotatably supports the rotating jig body 2, the rotating jig body 2 is rotated about the axis O1, and the rotation jig body 2 is rotated at a plurality of selected rotation angles. And a motor unit (rotation drive unit) 4 capable of stopping the rotating jig body 2.

In the present embodiment, directions are defined in the states shown in FIGS. That is, the extending direction of the axis O1 is referred to as a left-right direction L1, and is orthogonal to the left-right direction L1, and connects a bottom wall portion 81 (described later) of the support 3 and a mounting ring 20 (described later) of the rotating jig body 2. The direction is referred to as the vertical direction L2, and the direction orthogonal to the horizontal direction L1 and the vertical direction L2 is referred to as the front-rear direction L3.
Of the left and right directions L1, the direction toward the workpiece W is referred to as the inner side of the left and right direction L1, and the opposite is referred to as the outer side of the left and right direction L1. Furthermore, in the vertical direction L2, the direction from the bottom wall portion 81 toward the placement ring 20 is defined as the upper direction, and the opposite is defined as the lower direction.

As shown in FIG. 6, the workpiece W of the present embodiment is formed in a substantially disc shape, and has a first main surface (one of the front surface and the back surface) W <b> 1 and a second main surface (of the front surface and the back surface). On the other hand, the description will be made assuming that W2 and the outer peripheral surface W3 are processed surfaces. As such a workpiece | work W, the baseplate etc. which comprise the movement for timepieces are mentioned, for example.
In the illustrated example, an orientation flat portion W4 (orientation flat) that is linearly cut out is formed in a part of the outer peripheral edge portion of the workpiece W, whereby the orientation of the workpiece W can be determined. Has been.

(Rotating jig body)
The rotating jig body 2 is stopped at a plurality of rotation angles by the motor unit 4 as shown in FIGS. 2 to 5, and the work surface (that is, the first surface) of the workpiece W to be processed at each rotation angle. It is a member that holds the workpiece W with the main surface W1, the second main surface W2, and the outer peripheral surface W3) exposed to the outside.
Specifically, the rotating jig body 2 is connected to the rotating block 10 and both ends of the rotating block 10 in the left-right direction L1, respectively, and the first rotating shaft portion 11 extending outward in the left-right direction L1 and A second rotating shaft portion 12.

  As shown in FIGS. 7 and 8, the rotary block 10 moves the workpiece W between a mounting ring (mounting member) 20 on which the workpiece W is mounted and a mounting surface 22 a of the mounting ring 20. The work presser 30 to be pressed, the clamp part 40 that presses the work presser 30 toward the mounting ring 20 and holds the work W by pressing down, and the mounting ring 20 is fixed and the clamp part 40 is mounted openably and closably. The block main body 50 is provided.

(Rotating jig body: Block body)
The block main body 50 extends in the left-right direction L1 and is formed in a substantially cylindrical shape with a predetermined diameter around the axis O1. A central portion of the block main body 50 in the left-right direction L1 is a base plate 51 formed to have a predetermined thickness by cutting from the up-down direction L2, for example. Therefore, the upper surface 51a and the lower surface 51b (see FIG. 17) of the base plate 51 are flat surfaces parallel to the horizontal plane orthogonal to the vertical direction L2.

  A through-hole 52 having a circular shape in plan view that penetrates the base plate 51 in the vertical direction L2 is formed in the center portion of the base plate 51. Furthermore, on the upper surface 51a side and the lower surface 51b side of the base plate 51, circular opening concave portions 53 and 54 having a diameter larger than that of the through holes 52 are formed at predetermined depths, respectively. At this time, the opening recesses 53 and 54 are formed coaxially with the through shaft O2 of the through hole 52 extending in the vertical direction L2.

  The base plate 51 is formed with an annular flange 55 centered on the through shaft O2 by the through hole 52 and the two opening recesses 53 and 54 described above. At this time, the height is set such that the axis O <b> 1 extends along the upper surface of the annular flange 55.

  Further, the base plate 51 is formed with a communication hole 56 (see FIG. 5) that communicates the outside of the block body 50 and the inside of the through hole 52 from one side of the front-rear direction L3. Therefore, the processing tool 203a (see FIG. 1) can enter the through hole 52 from the outside of the block body 50 through the communication hole 56.

  Further, in the block main body 50, upper and lower end surfaces parallel to the horizontal plane are formed at both ends positioned on both sides in the left-right direction L1 with the base plate 51 interposed therebetween, and the upper end surface A recessed portion 57 having a rectangular shape in plan view that opens to the side is formed to a position deeper than the upper surface 51 a of the base plate 51.

(Rotating jig body: mounting ring)
The mounting ring 20 is a member that is fixed to the annular flange 55 in the block main body 50 from the lower side, and is formed in a ring shape with the through shaft O2 as the center.
As shown in FIGS. 8 to 10, the mounting ring 20 is formed integrally with the first ring 21 that contacts the lower surface of the annular flange 55 and the first ring 21. And a second ring 22 disposed inside the annular flange 55 in the radial direction.

  The first ring 21 has an outer diameter size that can be accommodated in an opening recess 54 formed on the lower surface 51b side of the base plate 51 in the block body 50, and has a plurality of screw holes with a certain interval in the circumferential direction. 21a is formed. And this 1st ring 21 is being fixed to the annular collar part 55 with the fixing screw penetrated by each said screw hole 21a. Thereby, the entire mounting ring 20 is integrally fixed to the block main body 50.

The upper surface of the second ring 22 is flush with the upper surface of the annular flange 55. Then, the workpiece W is placed on the upper surface of the second ring 22. Therefore, the upper surface of the second ring 22 functions as a placement surface 22a on which the workpiece W is placed.
Since the mounting surface 22a is flush with the upper surface of the annular flange 55 as described above, the axis O1 extends in the left-right direction L1 along the mounting surface 22a. .

  The placement surface 22a is formed with a recess (not shown) that follows the shape of the workpiece W, thereby providing a minute step. Then, by using this hollow portion, it is possible to place the workpiece W in a state in which the workpiece W is oriented in a predetermined direction (a state in which the orientation flat portion W4 is directed toward the communication hole 56 formed in the base plate 51). It is said that. The placed work W is exposed to the outside through the opening of the second ring 22 and the opening of the first ring 21.

  The second ring 22 is formed with a pair of escape holes 24 for avoiding interference of the processing tool 203a when forming a pair of positioning holes in the workpiece W. In the illustrated example, it is formed so as to penetrate the second ring 22 in a portion located on the opposite side of the left-right direction L1 across the penetration axis O2.

  9 and 11, the mounting ring 20 has a notch groove extending from the first ring 21 to the second ring 22 at a position corresponding to the communication hole 56 formed on the base plate 51 side. 25 is formed. This notch groove 25 functions as an escape portion for avoiding interference with the processing tool 203a when the processing tool 203a enters the communication hole 56 from the outside of the block body 50.

Further, as shown in FIGS. 9 and 12, an air flow path 26 through which air flows is formed in the mounting ring 20, and the inlet 26 a opens to the upper surface side of the first ring 21, And the outflow port 26b is opened to the mounting surface 22a side. Therefore, when air supplied from an air supply source 103 described later is introduced into the air flow path 26 from the inflow port 26a, it can be discharged from the outflow port 26b.
3 and 8, the air flow path 26 described above is shown.

(Rotating jig body: Workpiece holder)
As shown in FIGS. 7 and 8, the work presser 30 is stacked on the first main surface W1 side of the work W placed on the placement surface 22 a of the placement ring 20, and is pressed by the clamp unit 40 described above. A member that presses and holds the workpiece W with respect to the placement surface 22a by pressure, and is formed in an annular shape centering on the through shaft O2.

  As shown in FIGS. 7, 8, and 13 to 15, the work presser 30 has an outer diameter size that can be stored in an opening recess 53 formed on the upper surface 51 a side of the base plate 51 in the block body 50. An annular presser body 31 is provided.

  The pressing body 31 has a thickness that can be accommodated in the opening recess 53 described above. As a result, the workpiece retainer 30 is positioned in the left-right direction L1 and the front-rear direction L3 by the opening recess 53, and the upward pulling is restricted by the clamp portion 40.

  The opening 31 a of the presser body 31 is formed in a circular shape in plan view, and is approximately the same size as the opening of the second ring 22 in the mounting ring 20. Therefore, even if the work is pressed by the work presser 30, the first main surface W <b> 1 of the work W can be exposed to the outside of the block main body 50 through the opening 31 a of the presser main body 31.

  Further, a first step portion 32 is formed on the upper surface side of the pressing body 31 so as to surround the opening 31a from the outside in the radial direction. In the illustrated example, the outer shape of the first step portion 32 is formed in a circular shape in plan view. Similarly, on the lower surface side of the pressing body 31, a second step portion 33 is formed surrounding the opening 31 a from the outside in the radial direction. The second stepped portion 33 is formed so that the shape in plan view follows the shape of the workpiece W, like the recessed portion formed in the placement surface 22a. Thereby, the workpiece W placed on the placement surface 22 a can be stored in the second stepped portion 33.

An annular pressing ring 34 is formed by the first step portion 32 and the second step portion 33 described above. The pressing ring 34 plays a role of pressing the outer peripheral edge of the workpiece W stored in the second stepped portion 33 over substantially the entire circumference, thereby pressing the workpiece W between the mounting surface 22a. It can be attached and held (see FIG. 8).
The depth of the second step portion 33 is set to such a depth that the workpiece W is protruded to the lower surface side of the holding body 31 when the workpiece W is stored in the second step portion 33. Thereby, it is possible to reliably hold and hold only the workpiece W according to the pressing force of the clamp portion 40.

  Further, a notch hole 35 is formed at a position corresponding to the communication hole 56 formed on the base plate 51 side in the outer peripheral edge portion of the presser body 31, and further, the notch hole 35 is formed on the lower surface side of the presser body 31. A notch groove 36 is formed in communication. The notch hole 35 and the notch groove 36 function as an escape part for avoiding interference with the processing tool 203a when the processing tool 203a enters the communication hole 56 from the outside of the block body 50.

  Further, the holding ring 34 is formed with a pair of processing holes 37 into which the processing tool 203a for forming the pair of positioning holes with respect to the workpiece W is inserted. In the illustrated example, it is formed so as to penetrate the pressing ring 34 in a portion located on the opposite side of the left-right direction L1 across the penetration axis O2. Therefore, the position of the pair of escape holes 24 on the workpiece presser 30 side and the pair of processing holes 37 on the placement ring 20 side correspond to the vertical direction L2 (see FIG. 8).

By the way, the work presser 30 configured as described above is handled in the same manner as the work W by the transfer robot 202 described above.
Specifically, as shown in FIG. 1, when the work W is set on the work processing jig 1 or when the work W is collected, the transfer robot 202 temporarily moves the work presser 30 from the work processing jig 1. The work of once transporting to the storage 205 is performed. At that time, an engagement hole (not shown) with which the claw portion of the hand portion of the transfer robot 202 is engaged is formed on the side wall of the first step portion 32, for example.

  Further, as shown in FIGS. 13 to 15, a positioning hole 38 is formed in the presser body 31 for setting the work presser 30 in the temporary storage place 205 with the orientation of the work presser 30 being positioned. These positioning holes 38 are through-holes penetrating the pressing body 31 and are formed in portions located further outward in the left-right direction L1 than the pair of processing holes 37. At this time, one positioning hole 38 has a circular shape in plan view, and the other positioning hole 38 has an elliptical shape in plan view, and the direction of the work presser 30 can be regulated by the difference in shape. Yes.

  The temporary storage 205 is provided with standing pins (not shown) corresponding to the pair of positioning holes 38. Accordingly, the transfer robot 202 can reciprocate between the workpiece processing jig 1 and the temporary storage place 205 without changing the direction of the workpiece presser 30.

(Rotating jig body: Clamp part)
As shown in FIGS. 7 and 8, the clamp portion 40 is attached to the block body 50 so as to be freely opened and closed, and can be switched between pressing and releasing the work presser 30 in accordance with the opening and closing operation. ing.
One set of the clamp part 40 of this embodiment is provided so as to face the opposite side of the left-right direction L1 across the workpiece presser 30. In addition, since the structure of the clamp part 40 is the same, below, one clamp part 40 is demonstrated and description of the other clamp part 40 is abbreviate | omitted.

  In addition, in FIG. 7, the state in which one clamp part 40 clamps the pressing work 30 and the other clamp part 40 is releasing the clamp is illustrated.

  The clamp portion 40 includes a pressing arm 41 that presses the work presser 30 from above, and a connecting arm 42 that is connected to an upper end portion of a piston rod 70 described later, and a depression formed at both ends of the block body 50. It is supported by a clamp shaft 43 extending in the front-rear direction L3 in a state of being disposed in the recess 57.

The presser arm 41 is an arm that extends in parallel in the left-right direction L1 with an interval in the front-rear direction L3, and is arranged so that the tip thereof covers the presser body 31 of the work presser 30 from above. ing. As a result, the work holder 30 can be pressed through the tip of the pressing arm 41 by rotating the clamp 40 around the clamp shaft 43.
Note that an elastic member 41 a such as rubber is attached to the distal end portion of the pressing arm 41, and can contact the work pressing member 30 without scratching.

  The connecting arm 42 is disposed on the inner side of the pressing arm 41, and is an arm that extends in parallel toward the outside in the left-right direction L1 while leaving a space in the front-rear direction L3. The distal end portion of the connecting arm 42 sandwiches an upper end portion of a piston rod 70 to be described later from the front-rear direction L3, and the front end portion and the upper end portion of the piston rod 70 are connected to each other by a connecting pin 44 extending in the front-rear direction L3. .

At this time, the connecting pin 44 is inserted into a long hole 42 a formed at the tip of the connecting arm 42. Thus, as the piston rod 70 is reciprocated in the vertical direction L2, the connecting pin 44 is relatively slid in the elongated hole 42a, so that the connecting arm 42 is rotated around the clamp shaft 43.
That is, the clamp portion 40 can rotate around the clamp shaft 43 as the piston rod 70 is reciprocated in the vertical direction L2, and can open and close the distal end portion of the pressing arm 41. Thereby, the pressing of the work presser 30 and the release thereof are switched.

  The piston rod 70 is disposed in the block main body 50 so as to be capable of reciprocating along the vertical direction L2, and a piston portion 70a housed in the cylinder chamber 71 is attached to a lower end portion of the piston rod 70, and an upper end thereof. The portion is connected to the connecting arm 42 of the clamp portion 40 in the recessed recess 57 as described above.

  In the cylinder chamber 71, hydraulic oil (not shown) is supplied at an arbitrary pressure to an upper space located above the piston portion 70a and a lower space located below the piston portion 70a. Thereby, the pressure difference (hydraulic pressure difference) of the hydraulic oil is generated above and below the piston part 70a, and the piston rod 70 is controlled to reciprocate in the vertical direction L2 by this hydraulic pressure difference.

(First rotation shaft portion, second rotation shaft portion)
As described above, the first rotating shaft portion 11 and the second rotating shaft portion 12 are connected to the rotating block 10 configured as described above as shown in FIG.

The first rotating shaft portion 11 includes a first rotating cylinder portion 11a extending in the left-right direction L1, and a first flange portion 11b formed inward in the left-right direction L1 of the first rotating cylinder portion 11a. It is connected to the block main body 50 in the rotary block 10 via the first flange portion 11b.
The first rotating cylinder portion 11 a is inserted over the entire length of the first support cylinder 75 and is rotatably supported by the first support cylinder 75 via the first bearing portion 76.

The second rotating shaft portion 12 includes a second rotating cylinder portion 12a extending in the left-right direction L1, and a second flange portion 12b formed inward in the left-right direction L1 of the second rotating cylinder portion 12a. It is connected to the block main body 50 in the rotary block 10 via the second flange portion 12b.
A disc-shaped intermediate plate 77 is interposed between the block main body 50 and the second flange portion 12b, and the block main body 50 and the second flange portion 12b are connected via the intermediate plate 77. ing.

  The second rotating shaft portion 12 is inserted from one opening side into a second support cylinder 78 that is open on both sides in the left-right direction L1, and is rotatably supported via a second bearing portion 79. At this time, the second rotating shaft portion 12 is inserted into the second support cylinder 78 such that the second flange portion 12 b is disposed inside the second support cylinder 78 in the radial direction. Note that the outer peripheral edge portion of the second flange portion 12b is in sliding contact with the second support cylinder 78 via a seal portion 12c such as a labyrinth seal.

(Support)
Next, the support body 3 that rotatably supports the rotating jig body 2 including the rotating block 10, the first rotating shaft portion 11, and the second rotating shaft portion 12 will be described.
2 to 5, the support 3 is supported in a state where the first support cylinder 75 and the second support cylinder 78 described above and the first support cylinder 75 and the second support cylinder 78 are connected to each other. And a support base 80.

  The support base 80 is provided on the bottom wall portion 81 mounted on the moving plate 206 (see FIG. 1) and on both end sides in the left-right direction L1 on the bottom wall portion 81, and the first support cylinder 75 and the second A support frame 82 that supports the support cylinder 78 separately, and a side wall portion 83 that is connected to the bottom wall portion 81 and covers a part of the block main body 50 are provided.

  The side wall part 83 is formed so as to connect the support frame 82 in the left-right direction L1 and covers the block body 50 from the side where the communication hole 56 is formed. Further, the block main body 50 is disposed in a space formed by the bottom wall portion 81 and the side wall portion 83 so as to be rotatable around the axis O1.

(Motor part)
Next, the motor unit 4 that rotates the rotating jig body 2 will be described.
The motor unit 4 is, for example, a servo motor with a harmonic reduction gear, and is attached by being inserted into the second support cylinder 78 from the other opening side, as shown in FIG. At this time, a part of the output shaft portion 4 a of the motor portion 4 is inserted into the second rotating cylinder portion 12 a and is connected to the second rotating cylinder portion 12 a via the set screw 90. Thereby, the rotation jig body 2 can be rotated around the axis O <b> 1 as the motor unit 4 is driven.
The set screw 90 can be attached through a connection hole 91 in which the second support cylinder 78 and the support frame 82 are continuously formed. The connection hole 91 is closed by a screw member 91a (see FIGS. 4 and 5).

  Further, the rotation direction and the rotation amount of the motor unit 4 are controlled by the control unit 95. In the case of the present embodiment, the state shown in FIG. 3 is set as the rotation reference position (rotation angle 0 degree, first rotation angle), and forward / reverse rotation is performed between the position rotated 180 degrees from the position (reverse position). It is done. At this time, the rotating jig body 2 is rotated at a position rotated 90 degrees (second rotation angle) from the rotation reference position as shown in FIG. 16 and at a position rotated 180 degrees (third rotation angle) as shown in FIG. Is controlled to stop.

  As shown in FIG. 3, a detected pin 96 is attached to the output shaft portion 4 a of the motor unit 4, and a detection sensor 97 for detecting the detected pin 96 is attached to the second support cylinder 78. ing. And the control part 95 is performing the origin detection of the rotation jig body 2 based on the detection result by the detection sensor 97. FIG. As a result, the motor unit 4 is rotated forward and backward with high accuracy, and the rotary jig body 2 is accurately moved to the rotation reference position, the position rotated 90 degrees from the rotation reference position, and the position rotated 180 degrees. It is possible to stop.

(Clamping mechanism)
By the way, as shown in FIG.2 and FIG.3, the hydraulic oil piping 100 which supplies and discharges | emits said hydraulic oil via the rotary joint etc. is connected to the 1st rotation cylinder part 11a. One hydraulic oil pipe 100 is a conduit for supplying hydraulic oil to the upper space side of the piston portion 70 a in the cylinder chamber 71 and discharging the hydraulic oil from the upper space side. The other hydraulic oil pipe 100 is a conduit for supplying the hydraulic oil to the lower space side of the piston portion 70a in the cylinder chamber 71 and discharging the hydraulic oil from the lower space side.

Therefore, by using these hydraulic oil pipes 100, a hydraulic pressure difference can be created above and below the piston portion 70a, and the piston rod 70 can be reciprocated in the up and down direction L2.
These hydraulic oil pipes 100 are connected to, for example, a solenoid valve (not shown), and the hydraulic pressure difference can be reversed in accordance with an opening / closing operation by the solenoid valve.

(Work holding state confirmation mechanism)
On the other hand, as shown in FIG. 3, an air piping path 102 having a rotary joint 101 connected to the distal end portion is disposed in the second rotating cylinder portion 12a. The rotary joint 101 is fixed to the intermediate plate 77, and the air piping path 102 is drawn out through the motor unit 4. An air supply source 103 is connected to the base end portion of the air piping path 102, and air is supplied into the air piping path 102 at a predetermined pressure. The air supply source 103 is controlled by the control unit 95 and supplies air only when an instruction is received.

  Further, the air supplied into the air piping path 102 is supplied to an air supply joint 104 provided inside the block body 50 in the rotary jig body 2. As shown in FIG. 7, the air supply joint 104 is connected to the inlet 26a of the air passage 26 of the mounting ring 20 attached to the block main body 50, and the air passage 26a passes through the inlet 26a. Air is being supplied to

Since the air supply source 103 is configured as described above, the air supplied from the air supply source 103 is blown out from the outlet 26 b of the air flow path 26 opened on the mounting surface 22 a side of the mounting ring 20 and hits the workpiece W. At this time, if there is no gap between the workpiece W and the mounting surface 22a, the outlet 26b is blocked by the workpiece W, so that there is no air escape and the supply pressure value increases. On the other hand, when there is a gap between the workpiece W and the mounting surface 22a for some reason, air leaks from the outlet 26b, so the supply pressure value is lower than in the above case. To do.
Therefore, it is possible to detect the gap between the mounting surface 22a and the workpiece W by monitoring the air supply pressure value.

  The air flow path 26, the air supply joint 104, the air piping path 102, and the air supply source 103 described above function as an air gap sensor (gap detection unit) 105 that detects a gap between the placement surface 22a and the workpiece W. The air supply source 103 outputs the supply pressure value of air to the control unit 95 shown in FIG. And the control part 95 comprises the discrimination | determination part 95a which discriminate | determines the holding | maintenance state (sitting state) of the workpiece | work W based on this output result.

<Workpiece machining method>
Next, a case where a plurality of workpieces W are processed continuously and automatically using the workpiece automatic processing apparatus 200 including the workpiece processing jig 1 configured as described above will be described.
As an initial state, it is assumed that the workpiece W is not yet held on the workpiece machining jig 1. Further, it is assumed that the workpiece machining jig 1 has moved to a set position S1 where the workpiece W is attached and detached.

  Under such an initial state, when a machining start signal is input to the control unit 95, the control unit 95 starts the operation of each component based on the workpiece machining program recorded on the recording medium 95b. When the operation is started, first, the solenoid valve is opened, and the hydraulic oil is supplied into the cylinder chamber 71 through the hydraulic oil pipe 100 so that the hydraulic pressure on the upper space side located above the piston portion 70a is increased. The As a result, the piston rod 70 moves downward, and the clamp unit 40 is opened (unclamped) accordingly. That is, the clamp portion 40 rotates around the clamp shaft 43 so that the tip end portion of the pressing arm 41 moves upward.

  Then, the transfer robot 202 uses the hand portion having a plurality of claw portions to grip the work holder 30 that has been unclamped, and transfers the work holder 30 from the workpiece processing jig 1 to the temporary storage place 205. , Once placed in the temporary storage place 205. Next, the transfer robot 202 grips an unprocessed workpiece W stored in the pallet 201 using the hand unit, transfers the workpiece W to the workpiece processing jig 1, and It mounts on the mounting surface 22a. At this time, since the workpiece W can be placed in accordance with the shape of the recess formed on the placement surface 22a, the workpiece W can be placed with the orientation of the workpiece W being positioned. As a result, the orientation flat portion W4 of the workpiece W is in a state of facing the communication hole 56 formed in the block main body 50.

  After placing the workpiece W, the transfer robot 202 grips the workpiece presser 30 once placed on the temporary storage place 205 using the hand unit, and transfers the workpiece presser 30 to the workpiece processing jig 1. . And it inserts in the opening recessed part 53 in the block main body 50 so that the workpiece | work W may be covered. As a result, the work retainer 30 is positioned in the front-rear direction L3 and the left-right direction L1 by the opening recess 53, and the work retainer 30 is brought into contact with the work W in a state where the work W has surely entered the second stepped portion 33 of the work retainer 30. It is piled up against.

Then, while pressing the work presser 30 as it is with the transfer robot 202, the clamp unit 40 is closed to shift to the clamping work.
That is, by closing the solenoid valve, the hydraulic pressure difference of the hydraulic oil is adjusted so that the hydraulic pressure on the lower space located below the piston portion 70a is increased, and the piston rod 70 is moved upward. Thereby, as shown in FIG. 7, the clamp part 40 can be rotated around the clamp shaft 43 so that the tip part of the presser arm 41 moves downward, and the work presser 30 is pressed toward the mounting ring 20 side. Can do. Thereby, the workpiece | work W can be pressed down and hold | maintained between the pressing ring 34 and the mounting surface 22a.

  Simultaneously with the clamping operation, the control unit 95 operates the air supply source 103 to supply air into the air flow path 26 of the mounting ring 20 via the air pipe line 102 and the air supply joint 104. Further, the air supply source 103 outputs the air supply pressure value at that time to the determination unit 95 a of the control unit 95. Then, the determination unit 95a performs a determination operation for determining the holding state of the workpiece W based on the output result.

Here, as a result of the determination, when it is determined that the holding state of the workpiece W is uncertain (abnormal), for example, it is determined that there is some problem on the workpiece W side, and the workpiece W is temporarily paid out, and a new Another set of workpieces W is performed again by repeating the above-described steps. Then, the holding state of the workpiece W is determined again.
If it is determined again that the holding state of the workpiece W is abnormal even though the workpiece W has been replaced, the machine is stopped not as a problem on the workpiece W side but as a problem on the device side, For example, an alarm sound or the like is notified to urge an operator to perform necessary work such as inspection.

  On the other hand, if it is determined that the holding state of the workpiece W is certain as a result of the discrimination operation, the transfer robot 202 is retracted from the workpiece machining jig 1 and the moving plate 206 is slid to move the workpiece. The processing jig 1 is moved from the set position S1 to the processing position S2. Then, after the workpiece machining jig 1 is moved to the machining position S2, the machining mechanism 203 is operated while appropriately rotating the rotary jig body 2, and the first main surface W1, the second main surface W2, and the outer periphery of the workpiece W are operated. The process proceeds to an operation of continuously processing the surface W3 in accordance with processing data input in advance.

At this time, since the rotating jig body 2 rotates, it is possible to continuously process three different surfaces of the workpiece W in a series of flows without changing the position of the processing tool 203a of the processing mechanism 203. . In addition, the processing order and the number of processing can be arbitrarily set according to the processing data.
Here, the case where it processes in order of the 1st main surface W1, the outer peripheral surface W3, and the 2nd main surface W2 is mentioned as an example, and is demonstrated. The processing tool 203a is positioned above the workpiece processing jig 1, and is configured to perform processing by approaching the workpiece W from above.

First, as shown in FIG. 8, when the rotary jig body 2 is positioned at the rotation reference position (that is, the rotation angle 0 and an example of the first rotation angle of the present invention), the workpiece W Since the first main surface W1 is exposed upward through the opening of the work presser 30, the first main surface W1 can be processed using the processing tool 203a without rotating the rotating jig body 2. That is, drilling, grooving, dishing, etc. can be performed on the first main surface W1.
In other words, the rotating jig body 2 can be stopped at the first rotation angle and the workpiece W can be used for processing (an example of the first processing step of the present invention).

In the present embodiment, it is also possible to form a pair of positioning holes in the workpiece W using a pair of processing holes 37 formed in the workpiece presser 30.
This positioning hole is used as a hole for positioning the workpiece W in various post-processes of the workpiece W performed after the machining by the workpiece automatic machining apparatus 200 is completed. Further, when the pair of positioning holes are formed, even if the processing tool 203a penetrates the workpiece W, the pair of escape holes 24 are formed on the mounting ring 20 side, so that interference of the processing tool 203a can be prevented. .

Next, when machining the outer peripheral surface W3 of the workpiece W, the motor unit 4 is driven to stop the rotating jig body 2 at a position rotated 90 degrees from the rotation reference position as shown in FIG. An example of the second rotation angle of the invention).
Thereby, the communication hole 56 formed in the block main body 50 can be directed upward, and the outer peripheral surface W <b> 3 of the workpiece W can be exposed upward through the communication hole 56. Therefore, by allowing the processing tool 203a to enter the communication hole 56, the processing tool 203a can approach the outer peripheral surface W3 of the workpiece W, and the outer peripheral surface W3 can be processed.
In other words, the rotating jig body 2 can be stopped at a rotation angle (second rotation angle) different from the first rotation angle, and the workpiece W can be used for processing (in the second processing step of the present invention). One case).

Next, when processing the second main surface W2 of the workpiece W, the motor unit 4 is driven to stop the rotating jig body 2 at a position rotated 180 degrees from the rotation reference position as shown in FIG. (An example of the third rotation angle of the present invention).
Accordingly, the second main surface W2 of the workpiece W can be exposed upward through the opening of the first ring 21 and the opening of the second ring 22 in the mounting ring 20. Accordingly, the second main surface W2 of the workpiece W can be processed using the processing tool 203a.
In other words, the rotating jig body 2 can be stopped at a rotation angle (third rotation angle) different from the first rotation angle, and the workpiece W can be used for processing (in the second processing step of the present invention). Another example).

As described above, by appropriately rotating the rotating jig body 2, the first main surface W1, the outer peripheral surface W3, and the second main surface W2 of the workpiece W can be continuously processed without changing the position of the processing tool 203a. it can.
In addition, the cutting chips (processing waste) in the middle of a process can be washed away by supplying a cutting fluid suitably. At this time, for example, by using the replacement timing of the processing tool 203a and the like, the rotary jig body 2 can be rotated to wash away the chips efficiently.

Then, after the processing of the workpiece W is finished, the cutting jig is supplied again to wash away the chips, and the rotating jig body 2 is returned to the rotation reference position shown in FIG. 4, and then the moving plate 206 is slid in the reverse direction. Then, the workpiece machining jig 1 is moved from the machining position S2 to the set position S1.
Next, the clamp unit 40 is opened to shift to the unclamping operation. That is, the solenoid valve is opened to move the piston rod 70 downward. Thereby, the clamp part 40 can be rotated around the clamp axis | shaft 43 so that the front-end | tip part of the pressing arm 41 may move upwards, and the press of the workpiece | work holder 30 can be cancelled | released.

  When the pressing of the workpiece W is released, the transport robot 202 uses the hand portion to grip the clamped workpiece presser 30, and moves the workpiece presser 30 from the workpiece processing jig 1 to the temporary storage place 205. It is transported and temporarily placed on the temporary storage place 205. Next, the transfer robot 202 grips the workpiece W that has been processed using the hand unit, transfers the workpiece W from the workpiece processing jig 1 to the pallet 201, and stores it in the pallet 201.

Here, the cutting fluid is supplied again to the workpiece processing jig 1, and the chips remaining on the mounting surface 22a are washed away and cleaned. Thereafter, the transfer robot 202 performs a work of holding a new unprocessed workpiece W from the pallet 201 using the hand unit and setting the workpiece on the placement surface 22a of the workpiece processing jig 1, and then the above-described operation. The series of steps is repeated.
As a result, continuous and automatic processing of a plurality of workpieces W can be performed.

  In particular, according to the workpiece machining jig 1 of this embodiment, even if the position of the machining tool 203a is the same, by rotating the rotary jig body 2, different workpiece surfaces of the workpiece W, that is, the first main surface. The surface W1, the outer peripheral surface W3, and the second main surface W2 can be processed. Therefore, the above three processed surfaces can be continuously processed in a series of flows without holding and changing the workpiece W. In addition, since it is not necessary to change the holding of the workpiece W, a high-accuracy machining can be performed without causing a decrease in the machining accuracy associated with the holding change as in the prior art. In addition, since the workpiece W can be continuously processed from the state of the material to the final processing step without changing the holding, it is possible to improve the processing quality and enable unmanned operation to reduce the product cost. Can do.

In addition, since the workpiece W is pressed and held between the mounting ring 20 and the workpiece presser 30 using the clamp portion 40, the workpiece W can be stably held without rattling during processing, and the processing load Can cope with this. Therefore, it can be connected to highly accurate processing. Moreover, unlike the conventional setting method using the combination of the guide pin on the jig board side and the guide hole on the workpiece W side, the set is made by pressing using the workpiece presser 30. In this respect, it can be connected to highly accurate processing.
In addition, since the workpiece W can be held and released easily and smoothly by opening and closing the clamp portion 40 using hydraulic pressure, the workpiece W can be set and replaced smoothly.

Furthermore, since the holding state of the workpiece W can be determined using air, it is possible to perform the processing only when the workpiece W is securely pressed and held by the workpiece presser 30. Therefore, it is possible to increase the reliability of fixing the workpiece W and to effectively improve the processing quality.
Further, since the placement surface 22a on which the workpiece W is placed and the axis O1 that is the rotation center line of the rotary jig body 2 coincide, even if the rotary jig body 2 is rotated 180 degrees, the placement surface 22a is placed. The height of the surface 22a can be maintained at the same height. Therefore, the mounting surface 22a can be used as a processing reference point when processing the workpiece W, and the workpiece W can be easily processed.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the plate-shaped workpiece W whose processing surfaces are the first main surface W1, the second main surface W2, and the outer peripheral surface W3 has been described as an example. However, the shape of the workpiece and the processing surface The number of is not limited to this case. In addition, what is necessary is just to stop the rotation jig body 2 at arbitrary rotation angles according to the number of to-be-processed surfaces.

  Moreover, in the said embodiment, although the clamp part 40 was opened and closed using hydraulic pressure, you may open and close using pneumatic pressure, a fluid, etc. Moreover, the structure of the clamp part 40 may be designed freely as long as the work presser 30 can be pressed and released along with the opening / closing operation.

O1 ... axis W ... workpiece W1 ... first main surface (work surface of workpiece)
W2 ... Second main surface (work surface of workpiece)
W3 ... Outer peripheral surface (work surface of workpiece)
DESCRIPTION OF SYMBOLS 1 ... Work processing jig | tool 2 ... Rotating jig body 20 ... Mounting ring (mounting member)
DESCRIPTION OF SYMBOLS 30 ... Work holding | suppressing 40 ... Clamp part 95 ... Control part 95a ... Discriminating part 95b ... Recording medium 105 ... Air gap sensor (gap detection part)
200 ... Automatic workpiece processing device 203 ... Processing mechanism

Claims (9)

A workpiece processing jig for fixing the workpiece when processing the workpiece,
While holding the work so as to be detachable, it comprises a rotating jig body supported so as to be rotatable around an axis,
The rotating jig body is stopped at a plurality of rotation angles, and holds the workpiece in a state where a work surface of the workpiece to be processed at each rotation angle is exposed to the outside. Work processing jig. In the workpiece processing jig according to claim 1,
The rotating jig body is
A mounting member on which the workpiece is mounted;
A workpiece presser for pressing the workpiece between the mounting member;
A clamp portion that presses the workpiece press against the mounting member and holds the workpiece by pressing, and
The workpiece processing jig, wherein the clamp part is freely openable and closable, and the pressing and releasing thereof are switched in accordance with an opening and closing operation. In the workpiece processing jig according to claim 2,
A gap detector for detecting a gap between the placing member and the workpiece;
A workpiece processing jig, comprising: a determination unit that determines a holding state of the workpiece based on a detection result of the gap detection unit. In the workpiece processing jig according to claim 2 or 3,
The workpiece processing jig, wherein the mounting member is disposed so that the axis extends along the mounting surface. In the workpiece processing jig according to any one of claims 1 to 4,
The workpiece is a plate-like workpiece in which the work surface is a front surface, a back surface, and an outer peripheral surface,
The workpiece processing jig, wherein the rotating jig body holds the workpiece such that each of a front surface, a back surface, and an outer peripheral surface of the workpiece is exposed to the outside. A workpiece processing jig according to claim 1;
An automatic workpiece machining apparatus, comprising: a machining mechanism for machining the workpiece surface of the workpiece fixed to the workpiece machining jig. A state in which the work is detachably held and supported so as to be rotatable about the axis, is stopped at a plurality of rotation angles, and the work surface of the work to be processed at each rotation angle is exposed to the outside. A workpiece processing jig provided with a rotating jig body for holding the workpiece at
A workpiece machining method using a workpiece automatic machining apparatus comprising a machining mechanism for machining the workpiece surface of the workpiece,
A first machining step of stopping the rotating jig body at a first rotation angle and subjecting the workpiece to machining by the machining mechanism;
A second machining step of stopping the rotating jig body at a rotation angle different from the first rotation angle, and subjecting the workpiece to machining by the machining mechanism;
A workpiece machining method comprising: A state in which the work is detachably held and supported so as to be rotatable about the axis, is stopped at a plurality of rotation angles, and the work surface of the work to be processed at each rotation angle is exposed to the outside. A workpiece processing jig provided with a rotating jig body for holding the workpiece at
A computer of a workpiece automatic machining apparatus comprising a machining mechanism for machining the workpiece surface of the workpiece;
A first machining step of stopping the rotating jig body at a first rotation angle and subjecting the workpiece to machining by the machining mechanism;
A second machining step of stopping the rotating jig body at a rotation angle different from the first rotation angle, and subjecting the workpiece to machining by the machining mechanism;
A workpiece machining program characterized by causing   A computer-readable recording medium on which the work machining program according to claim 8 is recorded.

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