JP2013184261A - 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 receiving tool to be surely abutted on the workpiece, so that the workpiece can be supported stably and machined with high precision, and that a plurality of different surfaces to be machined of the workpiece can be machined continuously without changing the manner of holding the workpiece.SOLUTION: The tool 1 for machining the workpiece is used for fixing the workpiece, when the workpiece W is machined, and holding the workpiece to be attached thereto/detachably therefrom in such a state the surfaces W, W2 to be machined of the workpiece are exposed to the outside. The tool 1 for machining the workpiece includes: a rotary tool body 2 which is supported to be freely rotated around the axis O1 thereof and rotated around the axis from a first machining position P1 of the workpiece; and the receiving tool 110 for supporting the workpiece at the first machining position. The axis is disposed at such a position that the rotary tool body does not interfere with the receiving tool when rotated.

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 a large number of timepiece parts are generally assembled on both sides of the base plate, it is necessary to perform dishing, drilling and the like on both sides. Therefore, when processing the main plate, it is necessary to prepare at least two dedicated jig boards in order to cope with the double-side processing.

  As the processing method, for example, a process is required in which the base plate is set on the first jig board and the front side is processed, and thereafter the base board is set on the second jig board and the back side is processed. It is said. In particular, both the front surface side processing and the back surface side processing may be performed after the opposite surface side processing is performed, and thus it is necessary to repeatedly perform holding replacement (replacement) of the base plate. 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 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.

Therefore, in order to solve these points, for example, by rotating the processing jig that processes the workpiece at a position that escapes the front and back processing areas while fixing the workpiece with the jig board, the workpiece is A configuration that allows front and back processing without removal is conceivable.
However, in this case, since the receiving jig for receiving the workpiece at the time of machining is not provided, the workpiece is likely to be deformed by the machining load, the machining depth varies, and accurate machining cannot be performed.

  Therefore, for example, it is conceivable to provide a receiving jig that can reciprocate between the retracted position and the workpiece contact position. However, since the receiving jig needs to be moved with a large stroke, the operation is large. It becomes a thing. In addition, the larger the operation, the longer the receiving jig, and the greater the thermal deformation, causing positioning errors. For this reason, there is a case where the workpiece cannot be surely supported, and it is difficult to perform high-precision machining.

The present invention has been made in consideration of such circumstances, and the object thereof is to reliably contact the receiving jig with the workpiece so as to stably support the workpiece, and to perform highly accurate processing. It is possible to provide a workpiece processing jig capable of continuously processing a plurality of workpiece surfaces having different workpieces without changing the holding.
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 the workpiece is attached and detached with the work surface of the workpiece exposed to the outside. A rotating jig body that is held freely and is rotatably supported around an axis and rotated about the axis from the first machining position of the workpiece; and a receiving jig that supports the workpiece at the first machining position; The axis line is arranged at a position where the rotating jig body does not interfere with the receiving jig when rotating.

  According to the workpiece machining jig according to the present invention, when the rotating jig body is arranged at the first machining position, the workpiece can be supported by using the receiving jig, so that machining is performed while suppressing deformation of the workpiece. be able to. Therefore, machining can be performed with high accuracy without causing variations in machining depth. In addition, after processing, by rotating the rotating jig body around the axis from the first processing position, the posture of the workpiece can be changed while holding the workpiece, and a plurality of different workpiece surfaces of the workpiece can be processed. Is also possible.

In particular, the axis that is the rotation center line of the rotating jig body is arranged at a position (eccentric position) where the rotating jig body does not interfere with the receiving jig during rotation. The rotating jig body can be rotated without retracting the jig. Therefore, the receiving jig can be accurately arranged at the first processing position, and the receiving jig can be reliably brought into contact with the work, so that the work can be supported stably and reliably. Therefore, deformation of the workpiece can be effectively suppressed, and accurate machining can be performed.
Further, since it is not necessary to retract the receiving jig with the rotation of the rotating jig body, it is not necessary to consider the retracting stroke, and the position of the rotating jig body can be easily placed at a low position close to the installation surface. Therefore, the overall height of the workpiece processing jig can be kept low, and a highly rigid design can be easily achieved.

(2) In the workpiece machining jig according to the present invention, the rotating jig body is reciprocally rotated between the first machining position and a second machining position where the workpiece is reversed upside down. It is preferable that a reversing receiving jig for supporting the workpiece at two machining positions is provided, and the axis is arranged at a position where the rotating jig body does not interfere with the reversing receiving jig when rotating.

In this case, since the work can be reversed by rotating the rotary jig body between the first processing position and the second processing position, at least two processed surfaces on the front and back surfaces of the work Can be processed.
In particular, since the reverse receiving jig is provided at the second processing position, the workpiece can be supported also at the second processing position. Therefore, even when processing either the front surface or the back surface of the workpiece, deformation of the workpiece can be suppressed, and processing can be performed with high accuracy without causing variations in the processing depth.

  Moreover, since the axis is arranged at a position where the rotating jig body does not interfere with the reverse receiving jig when the rotating jig body rotates, the rotating jig body can be rotated without retracting the reverse receiving jig. Therefore, the reversing receiving jig can be accurately arranged at the second machining position, and the reversing receiving jig can be reliably brought into contact with the work, so that the work can be supported stably and reliably.

(3) The work processing jig according to the present invention further includes a moving mechanism for reciprocating the reversing receiving jig in a direction of approaching and separating from the work. After the two processing positions are arranged, it is preferable that the reverse receiving jig is moved closer to the work and the reverse receiving jig is brought into contact with the work.

In this case, since the reversing receiving jig can be moved by the moving mechanism, even if there is a variation in the thickness of the workpiece, the variation can be flexibly handled, and the reversing receiving jig can be more reliably attached to the work. It can be made to contact. Moreover, it can respond flexibly also about the workpiece | work from which thickness differs, and a reversing receiving jig can be reliably made to contact | abut with respect to a workpiece | work. Accordingly, it is possible to deal with a wide variety of workpieces having different thicknesses and increase the product value.
Since the reversing receiving jig is merely moved to the extent corresponding to the change in the thickness of the workpiece, it is not necessary to operate the reversing receiving jig greatly.

(4) In the workpiece processing jig according to the present invention, it is preferable that the moving mechanism includes a piezoelectric body that reciprocates the reversing receiving jig by deformation due to voltage application.

  In this case, since the piezoelectric body is used, the reversing receiving jig can be moved minutely and with high accuracy while minimizing positioning errors, and the reversing receiving jig can be brought into contact with the workpiece with higher accuracy. Can do.

(5) In the workpiece machining jig according to the present invention, the workpiece jig includes a position detection unit that detects a position of the workpiece when the rotating jig body is disposed at the second machining position, and the moving mechanism includes the position It is preferable to move the reversing receiving jig closer to the workpiece based on a detection result by the detection unit.

  In this case, since the reverse receiving jig is moved based on the detection result by the position detection unit, the reverse receiving jig can be easily brought into contact with the workpiece with higher accuracy.

(6) 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, and the workpiece A clamp part that presses the press against the mounting member and holds the workpiece by pressing down, and the clamp part is openable and closable, and the press and release thereof are switched in accordance with the opening and closing operation. preferable.

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.

(7) An automatic workpiece 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 processing can be performed while suppressing deformation of the workpiece using a receiving jig, processing can be performed with high accuracy without causing variations in the processing depth.

(8) In the work machining method according to the present invention, the work is removably held with the work surface of the work exposed to the outside, and is supported rotatably around the axis, and the first of the work A rotating jig body that is rotated around an axis from a machining position; and a receiving jig that supports the workpiece at the first machining position; and A workpiece machining method using a workpiece automatic machining apparatus, comprising: a workpiece machining jig disposed at a position not interfering; and a machining mechanism for machining the workpiece surface of the workpiece, wherein the rotating jig body Is stopped at a first machining position, and the workpiece is processed by the machining mechanism, and the rotating jig body is rotated around an axis to be stopped at a position different from the first machining position. , The serial processing mechanism, characterized in that it comprises a second processing step of subjecting the machining the workpiece.

  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.

(9) A workpiece machining program according to the present invention holds the workpiece detachably with the workpiece surface exposed to the outside, is supported rotatably around an axis, and is the first of the workpiece. A rotating jig body that is rotated around an axis from a machining position; and a receiving jig that supports the workpiece at the first machining position; and In a computer of a workpiece automatic machining apparatus that includes a workpiece machining jig arranged at a position that does not interfere with, and a machining mechanism that machines the workpiece surface of the workpiece, the rotating jig body is placed at a first machining position. A first processing step of stopping and subjecting the workpiece to processing by the processing mechanism; and rotating the rotating jig body about an axis to stop at a position different from the first processing position; Characterized in that to execute a second processing step of subjecting the processing the workpiece by.

  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.

(10) A recording medium according to the present invention is a computer-readable recording medium in which the workpiece machining program according to claim 9 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, the receiving jig can be reliably brought into contact with the workpiece, the workpiece can be stably supported, and the machining can be performed with high accuracy. The surface to be processed can be continuously processed.

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. It is sectional drawing along the AA line 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. 5 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 rotating block shown in FIG. It is a top view of the mounting ring shown in FIG. It is sectional drawing along the BB line shown in FIG. It is sectional drawing along the CC line shown in FIG. FIG. 10 is a plan view of the pressing work shown in FIG. 9. 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, a workpiece automatic machining apparatus 1 according to this embodiment is an apparatus for automatically machining 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 1 (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 after the processing is completed, the workpiece W is transferred to the pallet 201 again. , A processing mechanism 203 that processes the workpiece W fixed to the workpiece processing jig 1, and a control unit 95 that comprehensively controls these components. .

  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 recording medium 95a (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).
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 95a, 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 95a.

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 6, the workpiece machining jig 1 is detachable from the workpiece W. The rotary jig body 2 supported rotatably around the axis O1, the support body 3 supporting the rotary jig body 2 rotatably, and the rotary jig body 2 rotated around the axis O1 and selected. And a motor unit (rotation drive unit) 4 capable of stopping the rotating jig body 2 at a plurality of rotation angles.

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. 7, 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 6, and the work surface of the workpiece W to be processed at each rotation angle (that is, the first surface) 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.

By the way, in this embodiment, although the 1st rotating shaft part 11 and the 2nd rotating shaft part 12 which comprise the rotation jig body 2 are arrange | positioned coaxially with the axis line O1, the rotating block 10 is with respect to the axis line O1. It is arranged around a block axis O3 extending in parallel. The axis O1 and the block axis O3 extend parallel to each other in the left-right direction L1 with a space in the front-rear direction L3, and have the same height in the up-down direction L2. At this time, the axis O1 and the block axis O3 are arranged with an interval in the front-rear direction L3 such that the axis O1 does not cross the workpiece W.
Thereby, the rotation jig body 2 is rotated around the axis O1 eccentric with respect to the block axis O3. More specifically, as shown in FIG. 4, the first machining position P1 where the first main surface W1 of the workpiece W is machined, and the second main surface W2 is machined when the workpiece W is turned upside down. 2 is reciprocatingly rotated around the axis O1 between the machining position P2.

  As shown in FIGS. 8 and 9, 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 block axis O3. 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 FIGS. 16 and 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 so that the block axis O <b> 3 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. 9 to 11, the mounting ring 20 is formed integrally with the first ring 21 that is in contact with 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 block axis O3 extends in the left-right direction L1 along the mounting surface 22a. Yes.

  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.

  10 and 12, 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.

(Rotating jig body: Workpiece holder)
As shown in FIGS. 8 and 9, 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. 8, 9, and 13 to 15, the work retainer 30 has an outer diameter size that can be accommodated 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. 9).
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. 9).

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. 8 and 9, 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. 8, 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 rotary block 10 configured as described above is connected to the first rotary shaft portion 11 and the second rotary shaft portion 12 arranged coaxially with the axis O1 as shown in FIG. Has been.

  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 11a is inserted over the substantially entire length of the first supporting cylinder 75 disposed coaxially with the axis O1, and rotates to the first supporting cylinder 75 via the first bearing section 76. It is supported freely. The first flange portion 11b is formed in an elliptical shape in plan view, and connects the first rotating cylinder portion 11a and the block main body 50 disposed around the block axis O3 that is eccentric with respect to the axis O1. doing.

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.
An intermediate plate 77 formed in an elliptical shape in plan view is interposed between the block main body 50 and the second flange portion 12b, and the second flange portion 12b and the axis line are interposed via the intermediate plate 77. The block main body 50 arranged around the block axis O3 eccentric with respect to O1 is connected.

  The second rotating shaft portion 12 is disposed coaxially with the axis O1 and 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 via the second bearing portion 79. It is supported rotatably. 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 6, 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 And a support frame 82 for supporting the support cylinder 78 separately.

(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 connecting hole 91 is closed by a screw member 91a (see FIGS. 5 and 6).

  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, as shown in FIG. 4, the first machining position P1 where the first main surface W1 of the workpiece W is machined and the position rotated 180 degrees from the position, that is, the workpiece W is turned upside down. Then, the second main surface W2 is rotated forward and backward between the second processing position P2 where the second main surface W2 is processed. At this time, in addition to the first machining position P1 and the second machining position P2, the rotary jig body 2 is controlled to stop at three machining positions, that is, a third machining position P3 rotated 90 degrees from the first machining position P1. The

(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 receiving jig)
In addition, as shown in FIGS. 2 to 6, the workpiece machining jig 1 of the present embodiment includes a first receiving jig (receiving jig) 110 that supports the workpiece W at the first machining position P <b> 1, and a second jig. And a second receiving jig (inversion receiving jig) 111 that supports the workpiece W at the processing position P2.

The first receiving jig 110 is arranged immediately below the base plate 51 in the block body 50 arranged at the first processing position P1, and is supported by the first base part 115 erected on the bottom wall part 81. Has been.
The first receiving jig 110 is formed in a columnar shape having an upper end surface as a support surface, and the diameter thereof is smaller than the opening of the second ring 22 in the mounting ring 20. And this 1st receiving jig 110 is supported by the 1st base part 115 so that the height of a support surface may correspond to the block axis | shaft O3, and it may arrange | position coaxially with the penetration axis | shaft O2.

Accordingly, the first receiving jig 110 is arranged on the inner side in the radial direction of the mounting ring 20 when the block main body 50 is arranged at the first processing position P1, and the second main of the exposed work W is exposed. The support surface abuts over substantially the entire surface W2, and the workpiece W can be supported.
Note that the support surface functions as a workpiece receiving surface when processing the first main surface W1 side of the workpiece W, and has an uneven shape according to the processing.

The second receiving jig 111 is disposed immediately below the base plate 51 in the block main body 50 disposed at the second processing position P2, and is supported by the second base portion 120 erected on the bottom wall portion 81. Has been.
Like the first receiving jig 110, the second receiving jig 111 is formed in a columnar shape having an upper end surface as a support surface, the diameter of which is the same as that of the first receiving jig 110, and The diameter is smaller than the opening of the work presser 30. And this 2nd receiving jig 111 is the 2nd base part so that it may be arranged coaxially with penetration axis O2 in the state where the height of the support surface was located below the block axis O3 by the thickness of work W. 120.

As a result, the second receiving jig 111 is disposed on the inner side in the radial direction of the work presser 30 and exposed when the block body 50 is disposed at the second processing position P2 and the work W is reversed. The support surface comes into contact with substantially the entire first main surface W1 of W, and the workpiece W can be supported.
Note that the support surface functions as a workpiece receiving surface when machining the second main surface W2 side of the workpiece W, and has a concavo-convex shape according to the machining.

By the way, the axis O1 which is eccentric with respect to the block axis O3 is, as shown in FIG. 4, when the rotary jig body 2 is reciprocally rotated between the first processing position P1 and the second processing position P2. The rotating jig body 2 is disposed at a position where it does not interfere with the first receiving jig 110 and the second receiving jig 111.
Specifically, the first projection region E1 that passes in the vertical direction L2 across the support surface of the first receiving jig 110, and the second that passes in the vertical direction L2 across the support surface of the second receiving jig 111. The axis O1 is arranged so as not to intersect each of the projection areas E2. In addition, this axis O1 is arranged in parallel with the height in the vertical direction L2 being coincident with the block axis O3.

  The second base 120 that supports the second receiving jig 111 is attached to the fixed cylinder 121 attached to the bottom wall part 81 and the upper end of the fixed cylinder 121 so as to be movable in the vertical direction L2. The movable cylinder 122 functions as a moving mechanism that reciprocally moves the second receiving jig 111 along the vertical direction L2 approaching and separating from the workpiece W.

  Inside the fixed cylinder 121 is incorporated a piezoelectric actuator (piezoelectric body) 123 that reciprocates the movable cylinder 122 in the vertical direction L2 by expansion and contraction due to voltage application. Accordingly, the second receiving jig 111 can be moved (finely moved) in the vertical direction L <b> 2 via the movable cylinder 122 using the piezoelectric actuator 123.

In addition, a position detector 125 that detects the position of the workpiece W when the rotating jig body 2 is disposed at the second machining position P2 is attached to the fixed cylinder 121. The position detection unit 125 includes a push pin 126 erected so as to be vertically movable in an upward biased state.
The push pin 126 is a pin whose tip is positioned at the same height as the block axis O3 and is pushed by the first main surface W1 of the workpiece W as shown in FIG. That is, the push pin 126 is pushed in by the thickness of the workpiece W. Therefore, it is possible to accurately detect the height of the first main surface W1 of the workpiece W based on the pushing amount.

The control unit 95 has an application unit that applies a voltage to the piezoelectric actuator 123 and controls the movement of the second receiving jig 111.
Specifically, in a stage before the rotary jig body 2 is arranged at the second machining position P2, the second receiving jig 111 is retracted downward, and after the rotary jig body 2 is arranged at the second machining position P2. The second receiving jig 111 is controlled to move closer to the workpiece W. At this time, the control unit 95 moves the second receiving jig 111 closer to the workpiece W based on the pushing amount of the pushing pin 126.

<Workpiece machining method>
Next, a case where a plurality of workpieces W are machined continuously and automatically using the workpiece automatic machining apparatus 1 including the workpiece machining 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. Further, it is assumed that the rotating jig body 2 is disposed at the first processing position P1.

  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 95a. 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. Accordingly, as shown in FIG. 9, the clamp portion 40 can be rotated around the clamp shaft 43 so that the tip end portion of the presser arm 41 moves downward, and the work presser 30 is pressed toward the mounting ring 20. Can do. Thereby, the workpiece | work W can be pressed down and hold | maintained between the pressing ring 34 and the mounting surface 22a.

  In addition, when the workpiece W is held, the second main surface W2 comes into contact with and is supported by the support surface of the first receiving jig 110 disposed on the inner side in the radial direction of the mounting ring 20. In this state, the moving plate 206 is slid to move the workpiece machining jig 1 from the set position S1 to the machining position S2. Then, after the workpiece machining jig 1 is moved to the machining position, the machining mechanism 203 is operated while appropriately rotating the rotary jig body 2 to thereby form the first main surface W1, the second main surface W2, and the outer peripheral surface of the workpiece W. The process shifts to an operation for continuously processing W3 in accordance with machining data inputted 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. 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 FIGS. 4 and 9, when the rotary jig body 2 is located at the first processing position P <b> 1, the first main surface W <b> 1 of the workpiece W is exposed upward through the opening of the workpiece presser 30. Therefore, 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 position P1 and the workpiece W can be used for processing (an example of the first processing step of the present invention).

  At this time, since the workpiece W is supported by the first receiving jig 110, the workpiece W can be processed while suppressing deformation of the workpiece W. Therefore, processing can be performed with high accuracy without causing variations in processing depth.

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 1 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 move the rotating jig body 2 90 degrees around the axis O1 from the first machining position P1, as shown in FIGS. Stop at the rotated third machining position P3. 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, it is possible to stop the rotating jig body 2 at a position (third processing position P3) different from the first rotation position P1 and use the workpiece W for processing (an example of the second processing step of the present invention). ).

Next, when machining the second main surface W2 of the workpiece W, the motor unit 4 is driven to move the rotating jig body 2 around the axis O1 from the first machining position P1, as shown in FIGS. Stop at the second machining position P2 rotated 180 degrees. Thereby, since the workpiece W is turned upside down, 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. .
In other words, the rotating jig body 2 can be stopped at a position (second processing position P2) different from the first rotation position P1, and the workpiece W can be used for processing (another step of the second processing step of the present invention). Example).

  By the way, when the rotary jig body 2 is arranged at the second machining position P2, the push pin 126 of the position detection unit 125 is pushed down by the first main surface W1 of the workpiece W as shown in FIG. At this time, the pushing amount of the pushing pin 126 corresponds to the thickness of the workpiece W. Then, the control unit 95 accurately detects the height of the first main surface W1 of the workpiece W based on the pushing amount, applies a voltage to the piezoelectric actuator 123, and causes the second receiving jig 111 to move against the workpiece W. To move closer. Thereby, the support surface of the 2nd receiving jig 111 can be made to contact | abut reliably with respect to the 1st main surface W1 of the workpiece | work W, and the workpiece | work W can be supported using the 2nd receiving jig 111. it can.

  Thereafter, the second main surface W2 of the exposed workpiece W is processed using the processing tool 203a. Even in this case, since the workpiece W is supported by the second receiving jig 111, the workpiece W can be processed while suppressing deformation of the workpiece W. Therefore, processing can be performed with high accuracy without causing variations in processing depth.

Thus, the 1st main surface W1, the outer peripheral surface W3, and the 2nd main surface W2 of the workpiece | work W can be continuously processed by rotating the rotation jig body 2 suitably.
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 2 is supplied again to wash away the chips, and the rotary jig body 2 is returned to the first processing position P1 shown in FIG. 5, and then the moving plate 206 is slid in the reverse direction. Thus, 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 processing jig 1 of the present embodiment, by rotating the rotating jig body 2, different surfaces to be processed of the workpiece W, that is, the first main 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, high-accuracy machining can be performed without causing a reduction in machining accuracy associated with the holding change. 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.

  Moreover, the axis O1, which is the rotation center line of the rotating jig body 2, is arranged at a position (eccentric position) where the rotating jig body 2 does not interfere with the first receiving jig 110 during rotation, as shown in FIG. Therefore, the rotating jig body 2 can be rotated without retracting the first receiving jig 110 arranged at the first processing position P1. Therefore, the first receiving jig 110 can be accurately arranged at the first processing position P1, and the first receiving jig 110 can be reliably brought into contact with the work W, so that the work W can be supported stably and reliably. Therefore, the deformation of the workpiece W can be effectively suppressed, and the first main surface W1 can be processed with high accuracy.

  Similarly, since the axis O1 is disposed at a position where the rotating jig body 2 does not interfere with the second receiving jig 111 when the rotating jig body 2 rotates, the second receiving jig 111 arranged at the second processing position P2 is arranged. The rotating jig body 2 can be rotated without being retracted. Therefore, the second receiving jig 111 can be accurately arranged at the second processing position P2, and the second receiving jig 111 can be reliably brought into contact with the work W, so that the work W can be supported stably and reliably. Therefore, the deformation of the workpiece W can be effectively suppressed, and the second main surface W2 can be processed with high accuracy.

  Further, since it is not necessary to retract the first receiving jig 110 and the second receiving jig 111 as the rotating jig body 2 rotates, it is not necessary to consider the retracting stroke, and the position of the rotating jig body 2 is kept at the bottom. It is easy to arrange at a low position near the wall portion 81. Therefore, the overall height of the workpiece machining jig 1 can be kept low, and a highly rigid design can be easily achieved.

Further, since the second receiving jig 111 can be moved using the second base portion 120 having the piezoelectric actuator 123, even if the thickness of the workpiece W varies, the variation can be flexibly handled. The second receiving jig 111 can be brought into contact with the workpiece W more reliably.
In addition, since it is only necessary to move the 2nd receiving jig 111 to the extent corresponding to the thickness change of the workpiece | work W, it is not necessary to operate the 2nd receiving jig 111 largely.

In addition, since the piezoelectric actuator 123 is used, the second receiving jig 111 can be moved finely and with high accuracy while minimizing positioning errors, and the second receiving jig 111 can be applied to the workpiece W with higher accuracy. Can be touched. Further, since the piezoelectric actuator 123 is used, it is difficult to cause the rigidity of the second receiving jig 111 to decrease.
In addition, since the second receiving jig 111 is moved based on the detection result of the position detection unit 125, the second receiving jig 111 can be easily brought into contact with the work W with respect to this point as well.

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.

  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.

In the above embodiment, the first receiving jig 110 and the second receiving jig 111 are provided. However, the second receiving jig 111 is not essential and may not be provided. However, it is preferable to provide the second receiving jig 111, since the deformation of the workpiece W can be prevented regardless of whether the first main surface W1 or the second main surface W2 is processed.
In particular, when the second receiving jig 111 is provided, the workpiece W is moved along the entire circumference of the inner peripheral edge of the opening of the second ring 22 in the mounting ring 20, for example, at the second processing position P2. Cutting may be performed. By doing so, it is possible to separate the workpiece W that has been completely processed into the first main surface W1, the second main surface W2, and the outer peripheral surface W3, and place the separated workpiece W on the second receiving jig 111. It can be placed as it is. Therefore, it is possible to recover the separated workpiece W from the second receiving jig 111 after rotating the rotating jig body 2 to the first processing position P1.

  Further, since the second receiving jig 111 can be moved closer to the workpiece W, not only can the thickness of the workpiece W be varied, but also the workpiece W having a different thickness can be flexibly handled. The second receiving jig 111 can be reliably brought into contact with the second main surface W2 of the workpiece W. Thus, it can respond widely to various workpieces W having different thicknesses, and the product value can be increased.

  In the embodiment described above, a gap detection unit (for example, an air gap sensor) that detects a gap between the mounting ring 20 and the workpiece W may be provided to determine the holding state of the workpiece W. In this case, 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.

O1 ... axis P1 ... first machining position P2 ... second machining position W ... work W1 ... first main surface (work surface of the 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 ... Recording medium 110 ... 1st receiving jig (receiving jig)
111 ... 2nd receiving jig (reversing receiving jig)
120 ... 2nd base part (movement mechanism)
123 ... Piezoelectric actuator (piezoelectric)
125 ... Position detecting unit 200 ... Automatic workpiece machining apparatus 203 ... Machining mechanism

Claims (10)

A workpiece processing jig for fixing the workpiece when processing the workpiece,
The workpiece is detachably held with the work surface of the workpiece exposed to the outside, is rotatably supported around the axis, and is rotated around the axis from the first machining position of the workpiece. Concretely,
A receiving jig for supporting the workpiece at the first processing position,
The workpiece processing jig, wherein the axis is disposed at a position where the rotating jig body does not interfere with the receiving jig during rotation. In the workpiece processing jig according to claim 1,
The rotating jig body is reciprocally rotated between the first processing position and a second processing position where the work is reversed.
A reversing receiving jig for supporting the workpiece at the second machining position;
The workpiece processing jig, wherein the axis is disposed at a position where the rotating jig body does not interfere with the reversing receiving jig when rotating. In the workpiece processing jig according to claim 2,
A moving mechanism for reciprocating the reversing receiving jig in a direction approaching and separating from the workpiece;
The moving mechanism moves the reversing receiving jig closer to the work after the rotating jig body is arranged at the second processing position, and brings the reversing receiving jig into contact with the work. A workpiece processing jig characterized by that. In the workpiece processing jig according to claim 3,
The workpiece working jig, wherein the moving mechanism includes a piezoelectric body that reciprocates the reversing receiving jig by deformation due to voltage application. In the workpiece processing jig according to claim 3 or 4,
A position detector for detecting the position of the workpiece when the rotating jig body is disposed at the second machining position;
The workpiece moving jig characterized in that the moving mechanism moves the reversal receiving jig closer to the workpiece based on a detection result by the position detection unit. In the workpiece processing jig according to any one of claims 1 to 5,
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. 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 rotating jig body that holds the work detachably with the work surface of the work exposed to the outside, is supported rotatably about the axis, and is rotated about the axis from the first machining position of the work. And a receiving jig that supports the workpiece at the first machining position, and the axis is disposed at a position where the rotating jig body does not interfere with the receiving jig when the rotating jig body rotates. Ingredients,
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 machining position and subjecting the workpiece to machining by the machining mechanism;
A second machining step in which the rotating jig body is rotated around an axis and stopped at a position different from the first machining position, and the workpiece is subjected to machining by the machining mechanism;
A workpiece machining method comprising: A rotating jig body that holds the work detachably with the work surface of the work exposed to the outside, is supported rotatably about the axis, and is rotated about the axis from the first machining position of the work. And a receiving jig that supports the workpiece at the first machining position, and the axis is disposed at a position where the rotating jig body does not interfere with the receiving jig when the rotating jig body rotates. Ingredients,
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 machining position and subjecting the workpiece to machining by the machining mechanism;
A second machining step in which the rotating jig body is rotated around an axis and stopped at a position different from the first machining position, and the workpiece is subjected 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 9 is recorded.

Images