JP2014226757A - Processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processing device which can efficiently process a workpiece with a simple structure.SOLUTION: A processing device 1 includes a workpiece support mechanism 2, and a processing machine 3. The workpiece support mechanism 2 includes: a fixing plate 4 having fixing parts 7a, 7b, on which two workpieces W are fixed respectively, arranged on one plate surface; and a rotation mechanism 5 which changes positions of the workpieces W fixed on the fixing parts 7a, 7b by rotating the fixing plate 4 around a rotation axis parallel to the plate surface. Opening holes 8a, 8b are formed on the fixing parts 7a, 7b.

Description

  The present invention relates to a processing apparatus that performs processing while causing a workpiece to face a processing machine in a plurality of processing postures.

  2. Description of the Related Art Conventionally, a processing apparatus that processes a workpiece with a processing machine while causing the workpiece to face the processing machine in a plurality of processing postures by a workpiece support mechanism is known. The workpiece support mechanism includes a fixing plate having a first fixing portion and a second fixing portion to which the workpiece is fixed on one surface and the other surface, and a workpiece fixed to the first fixing portion and the second fixing portion in a detachable manner. And a rotation mechanism that changes the processing posture of each workpiece fixed to the first fixing portion and the second fixing portion by rotating the fixing plate around a predetermined center axis (Patent Document 1). reference).

  According to this processing apparatus, workpieces A, B,... That are sequentially transported on the transport path are sequentially processed in the following procedure by the first cutting tool group and the second cutting tool group of the processing machine. Is done. That is, first, the workpiece A is passed from the conveyance path and fixed to the first fixing portion that faces the conveyance path.

  Next, the fixed plate is rotated by 90 ° so that the first machining surface of the workpiece A is in a machining posture facing the first cutting tool group of the machining machine. Then, the first machining surface of the workpiece A is machined by the first cutting tool group. Next, the fixing plate is rotated by 90 °, and the workpiece B is passed from the conveyance path to the second fixing portion and fixed. Further, the fixed plate is rotated 90 °.

  As a result, the first machining surface of the workpiece B faces the first cutting tool group, and the second machining surface of the workpiece A faces the second cutting tool group. In this state, the first machining surface of the workpiece B is machined by the first cutting tool group, and the second machining surface of the workpiece A is machined by the second cutting tool group.

  Further, the fixed plate is rotated 90 °. Thereby, it will be in the state where the 1st fixed part faced the conveyance way. In this state, the workpiece A is paid out from the first fixed portion onto the conveyance path, and the next workpiece C is transferred from the conveyance path to the first fixed portion instead. In this way, the workpiece A, the workpiece B,... Are sequentially processed by simultaneous machining of the first machining surface and the second machining surface by the first cutting tool group and the second cutting tool group.

  In addition, it is also possible to process only the surface of the workpiece B facing the processing machine in the state of the rotation angle of the fixed plate when the workpiece A is paid out from the first fixed portion onto the conveyance path.

JP 2011-240466 A

  However, according to the processing apparatus of Patent Document 1, the two workpieces are fixed to both sides of the fixed plate, respectively, so that the plate surface of the fixed plate faces the processing machine, that is, the fixed plate is in the conveyance path. In the faced state, only one surface of one workpiece can be machined. Only when the fixing plate is rotated by 90 ° from this state, the first machining surface of one workpiece and the second machining surface of the other workpiece can be machined simultaneously as described above.

  For this reason, in the case of a workpiece such as a cylinder block, it is necessary to machine all six surfaces, but the above-described simultaneous machining of the first machining surface and the second machining surface is performed within the plane in which the workpiece posture is parallel to the fixed plate. Even if it is performed in two postures 90 degrees different from each other, only four surfaces for each workpiece can be processed by the simultaneous processing. The other two surfaces can only be processed alone as described above. Accordingly, the processing efficiency is lowered.

  Moreover, in order to attach a workpiece to the workpiece support mechanism, the workpiece conveyed while being laid sideways must be placed vertically. For this reason, it is difficult to automatically attach the workpiece to the workpiece support mechanism. To achieve this, an attachment device having a complicated configuration is required, and thus a large amount of cost is required.

  An object of the present invention is to provide a machining apparatus capable of realizing efficient machining of a workpiece with a simple configuration in view of the problems of the related art.

  The processing apparatus of the present invention is a processing apparatus that processes a workpiece with the processing machine while facing the processing machine in a plurality of processing postures necessary for processing by the workpiece support mechanism, and the workpiece support mechanism has a horizontal rotation axis. A fixed plate in which the plate surface is rotated with a positional relationship parallel to the rotation axis, and a plurality of fixed portions to which the workpiece is fixed are arranged on one plate surface in the direction of the rotation axis. Fixed to the plurality of fixing portions by rotating the fixing plate around the rotation axis, and a fixing mechanism for detachably fixing the workpiece to the plurality of fixing portions, respectively. A rotation mechanism for changing the posture of each workpiece, and each fixing portion of the fixing plate has a portion on the fixing plate side of the workpiece fixed to the fixing portion on the other plate surface of the fixing plate. Opening holes for machining from the side Is, the plurality of machining posture of each workpiece that is fixed to the plurality of fixing portions, characterized in that it is changed in synchronization with the rotation of the fixing plate by the rotating mechanism.

  According to the present invention, a plurality of workpieces are respectively fixed to a plurality of fixing portions of a fixing plate, and the fixing plate is rotated by a fixing mechanism, whereby the posture of each workpiece is sequentially set to a plurality of processing postures necessary for processing. However, each workpiece can be machined simultaneously for each machining posture.

  For example, if the workpiece has a rectangular parallelepiped shape and requires machining on its six surfaces, the six types of postures of the six surfaces facing the processing machine are necessary machining postures for the workpiece.

  In this case, when each workpiece is fixed to each fixing portion so that one side and one surface thereof are parallel to the rotation axis of the fixing plate and the plate surface, the necessary processing of each workpiece is performed each time the fixing plate is rotated 90 °. The posture can be changed in synchronization with the rotation of the fixed plate by the rotation mechanism. Therefore, each work can be processed simultaneously with a processing machine every time the fixed plate is rotated 90 °.

  In addition, when the part on the fixed plate side of the workpiece fixed to the fixed part is also the object to be processed, the workpiece is placed so that the part is in the processing posture facing the processing machine through the opening hole of the fixed part. The posture can be set. Thereby, about the workpiece | work, the part by the side of the stationary plate of this workpiece | work can also be processed, fixing to a fixing | fixed part.

  Therefore, when the workpiece is the above rectangular parallelepiped, the angle of the fixed plate is first set so that each workpiece has one of the required machining postures, and then the fixed plate is rotated by 270 ° by 90 °. By doing so, the posture of each workpiece can be sequentially set to four machining postures among the required machining postures. And each workpiece | work can be processed simultaneously for every this setting.

  As for the other two required machining postures of each workpiece, for example, from the posture when each workpiece is machined in the above four machining postures with respect to the stationary plate of another machining apparatus, the plate surface of the fixed plate In the same manner, each workpiece can be processed simultaneously by fixing in a posture rotated by 90 ° parallel to the workpiece. Thereby, each workpiece | work can be simultaneously processed for every processing attitude | position with a required 6 process attitude | position.

  Furthermore, since the rotation mechanism rotates the fixed plate around a horizontal rotation axis parallel to the plate surface, the fixed plate can be in a horizontal state. In this state, the workpiece conveyed in the laid posture can be placed and fixed on the fixing portion of the fixing plate in the same posture. For this reason, the mechanism which supplies a workpiece | work to a processing apparatus can be simplified.

  Thus, according to the present invention, it is possible to process each workpiece in parallel while supporting a plurality of workpieces from the workpiece support device, and it is possible to process each workpiece in more machining postures. Also, the workpiece supply mechanism can be simplified. Therefore, it is possible to provide a machining apparatus that can realize efficient machining of a workpiece with a simple configuration.

  In the present invention, the plurality of fixing portions, the opening holes, and the fixing mechanism may be configured such that fixing postures of the plurality of workpieces with respect to the plurality of fixing portions are different between adjacent workpieces.

  According to this, after the processing in each processing posture of one adjacent workpiece is completed, the one workpiece is transferred to the fixing portion where the other workpiece is fixed, and fixed in a posture different from that before the transfer. can do.

  Thereby, this one workpiece | work can be made to confront a processing machine with the processing attitude | position different from the processing attitude | position which completed processing. For this reason, each workpiece | work can be used for the process by more processing attitude | positions on one workpiece | work support mechanism. Therefore, more efficient machining of the workpiece can be performed.

  In the present invention, the processing machine includes a plurality of processing units provided so as to surround or sandwich the fixing plate around the rotation axis, and the plurality of processings are performed on the workpiece fixed to the fixing unit. Processing may be performed in parallel from a plurality of directions by a machine.

  According to this, each workpiece can be confronted with a plurality of processing machines at the same time for each processing posture, and simultaneously subjected to processing by a plurality of processing machines. Therefore, the workpiece can be processed more efficiently.

It is a top view of the processing apparatus concerning one embodiment of the present invention. It is a top view of the jig body part in the processing apparatus of FIG. (A)-(f) is a figure which shows an example of the process surface of the workpiece | work processed with the processing apparatus of FIG. (A)-(d) is a figure which shows the process sequence of the workpiece | work of FIG. 3 in the processing apparatus of FIG. It is a top view which shows the processing apparatus which concerns on other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the processing apparatus 1 according to the embodiment processes a workpiece W with the processing machine 3 while facing the processing machine 3 in a plurality of processing postures by a workpiece support mechanism 2.

  The workpiece support mechanism 2 includes a fixed plate 4 on which two workpieces W are fixed simultaneously, a rotation mechanism 5 that rotates the fixed plate 4 around a horizontal rotation axis AX parallel to the plate surface, and a rotation mechanism 5. And a jig body 6 to be rotated. In FIG. 1, the state when the fixing plate 4 is rotated to a position parallel to the vertical direction by the rotation mechanism 5 is shown.

  The fixed plate 4 is supported by the jig body 6 and rotates together with the jig body 6. The rotating mechanism 5 rotates the fixed plate 4 so that the two workpieces W fixed to the fixed plate 4 are in a plurality of necessary processing postures so as to face the processing machine 3 sequentially. change.

  FIG. 2 is a plan view of the jig body 6 portion in the workpiece support mechanism 2. As shown in FIG. 2, the fixing plate 4 has two fixing portions 7a and 7b to which two workpieces W are respectively fixed on one plate surface. The fixing portions 7a and 7b have opening holes 8a and 8b for processing the portion of the work W fixed to the fixing portions 7a and 7b on the fixing plate 4 side from the other plate surface side of the fixing plate 4, respectively. Provided.

  The jig body 6 and the fixing plate 4 are provided with a fixing mechanism 9 for detachably fixing the two workpieces W to the fixing portions 7a and 7b, respectively. The fixing portions 7a and 7b, the opening holes 8a and 8b, and the fixing mechanism 9 are configured such that the fixing postures of the workpieces W fixed adjacent to the fixing portions 7a and 7b are different from each other.

  Returning to FIG. 1, loading and unloading of the workpiece W with respect to the processing apparatus 1 is performed by the transport mechanism 10. At that time, as means for transferring the workpiece W to and from the workpiece support mechanism 2, the transfer mechanism 10 includes, for example, three transfer hands 11 that detachably hold the workpiece W, and these transfer hands 11 And a moving unit 13 that travels on the transport rail 12.

  In this case, when the workpiece W is transferred, the moving unit 13 is positioned so that the fixed unit 7a or 7b and the corresponding transport hand 11 face each other. The workpiece W can be exchanged by performing the clamping and unclamping operations of the fixing mechanism 9 and the gripping and releasing operations of the transport hand 11 in synchronization.

  Since the transport mechanism 10 has the three transport hands 11, the unprocessed workpiece W is transferred to the fixed portion 7a, the workpiece W is transferred from the fixed portion 7a to the fixed portion 7b, and the fixed portion 7b is transferred from the fixed portion 7b. The work W can be dispensed efficiently.

  On the other hand, the processing machine 3 includes, for example, a rotation index device 15 including six arms 14. The rotary indexing device 15 can rotate the six arms 14 in increments of 60 °. Further, the rotation index device 15 is configured to be movable in the Y direction and the X direction with respect to the workpiece support mechanism 2. Thereby, the arm 14 can be selectively made to oppose the workpiece support mechanism 2.

  A multi-axis machining head 16 for machining the workpiece W is provided at the tip of the arm 14. The multi-axis machining head 16 includes cutting tool groups 17a and 17b composed of various types of cutting tools. Each multi-axis machining head 16 simultaneously performs a plurality of holes and the like by the cutting tool groups 17a and 17b on the two workpieces W supported by the workpiece support mechanism 2 in a machining posture corresponding to the multi-axis machining head 16. be able to.

  Guide rods 18 are provided on both sides of the tip of each multi-axis machining head 16. The work support mechanism 2 is provided with two guide members 19 having guide holes corresponding to the guide rods 18. The multi-axis machining head 16 is positioned with respect to the workpiece support mechanism 2 by causing the arm 14 holding the workpiece to face the workpiece support mechanism 2 and inserting the guide rod 18 of the multi-axis machining head 16 into the guide hole of the corresponding guide member 19. Is done.

  FIG. 3 shows an example of a processing surface facing the processing machine according to the processing posture of the workpiece W. In this example, the workpiece W is a cylinder block workpiece. In this case, the workpiece W has a substantially rectangular parallelepiped (hexahedral) shape. And as for the workpiece | work W, six process surface AF shown by Fig.3 (a)-(f) becomes a process target. The processing of the processing surfaces A to F is performed while the workpiece W is sequentially opposed to the processing machine 3 in six types of processing postures corresponding to these.

  In the processing apparatus 1, first, the first work by the cutting tool group 17 a of the multi-axis machining head 16 is performed on the unprocessed work W in a state of being fixed to the fixing portion 7 a of the work support mechanism 2. Next, the workpiece W is transferred to the fixing unit 7b by the moving unit 13 and the transport hand 11, and is subjected to the second machining by the cutting tool group 17b of the multi-axis machining head 16 while being fixed to the fixing unit 7b. .

  The workpiece W that has been subjected to the second machining is then paid out of the machining apparatus 1 by the transport mechanism 10. In this way, the workpieces W sequentially put into the machining apparatus 1 are sequentially machined.

  However, during this time, the first machining and the second machining proceed at the same time in a state in which the unprocessed workpiece W is fixed to the fixing portion 7a and the workpiece W in which only the first machining is completed is fixed to the fixing portion 7b. And between this 1st and 2nd process and the following 1st and 2nd process, the discharge | payout from the fixing | fixed part 7b of the workpiece | work W which the 1st and 2nd process was completed, the workpiece | work which completed only the 1st process Transfer to the fixing portion 7b of W and fixation of the unprocessed workpiece W to the fixing portion 7a are performed.

  FIGS. 4A to 4D show a procedure for performing the first and second processing by fixing the workpiece W of FIG. 3 to the fixing portions 7a and 7b. In each of FIGS. 4A to 4D, a plan view of the jig body 6 portion is shown in the upper stage, and a front view is shown in the lower stage. In the plan view, the multi-axis machining head 16 used for machining is also shown.

  In the procedure of FIG. 4, the cutting tool group 17 a of the multi-axis machining head 16 is applied to the workpieces Wa and Wb as the two workpieces W fixed respectively to the fixing portions 7 a and 7 b of the fixing plate 4. The first processing and the second processing by 17b are respectively performed. This processing is performed while changing the processing posture by changing the rotation angle of the fixed plate 4 from 0 ° to 90 °. At that time, the multi-axis machining head 16 used for machining is exchanged by the rotary index device 15 or the like according to the machining posture.

  That is, first, with the rotation angle of the fixed plate 4 set to 0 °, which is the angle at which the fixed plate 4 faces upward, as shown in FIG. Wb is fixed.

  At this time, since the fixed plate 4 is in a horizontal state, the workpiece Wa is delivered from the transport mechanism 10 (see FIG. 1) to the fixed portion 7a while being laid down. Further, the workpiece Wb is transferred from the fixed portion 7a to the fixed portion 7b by the transport mechanism 10. However, the workpiece Wa is unmachined, but the workpiece Wb is in a state where the machining of the machining surfaces C, F, B, and A shown in FIG. 3 is completed.

  At this time, the workpiece Wa is fixed such that the machining surface A shown in FIG. 3 faces upward and the machining surface C faces the multi-axis machining head 16. The workpiece Wb is fixed such that the machining surface A faces upward and the machining surface E faces the multi-axis machining head 16. In this state, the machining surfaces C and E are simultaneously machined by the cutting tool groups 17a and 17b of the multi-axis machining head 16, respectively.

  Next, the jig body 6 is rotated by 90 ° by the rotation mechanism 5, and the rotation angle of the fixed plate 4 is set to 90 ° as shown in FIG. 4B. The rotation direction is the clockwise direction when the jig body 6 is viewed along the rotation axis AX from the right side of the drawing.

  Thereby, the machining surfaces C and E of the workpieces Wa and Wb facing the multi-axis machining head 16 in FIG. 4A face upward. Further, the machining surface F opposite to the machining surface A facing upward in FIG. 4A of the workpieces Wa and Wb faces the multi-axis machining head 16 through the opening holes 8a and 8b. In this state, the machining surface F of each workpiece W is simultaneously machined through the opening holes 8a and 8b by the cutting tool groups 17a and 17b of the multi-axis machining head 16, respectively.

  Next, the jig body 6 is rotated by 90 ° in the same direction as described above by the rotation mechanism 5, and the rotation angle of the fixed plate 4 is set to 180 ° as shown in FIG. Thereby, the processing surfaces F of the workpieces Wa and Wb facing the multi-axis processing head 16 in FIG. 4B face upward.

  Further, the machining surfaces B and D opposite to the machining surfaces C and E facing upward in FIG. 4B of the workpieces Wa and Wb face the multi-axis machining head 16. In this state, the machining surfaces B and D of the workpieces Wa and Wb are simultaneously machined by the cutting tool groups 17a and 17b of the multi-axis machining head 16.

  Next, the jig body 6 is rotated by 90 ° in the same direction as described above by the rotation mechanism 5, and the rotation angle of the fixed plate 4 is set to 270 ° as shown in FIG. As a result, the machining surfaces B and D of the workpieces Wa and Wb facing the multi-axis machining head 16 in FIG. 4C face upward. Also, two machining surfaces A opposite to the two machining surfaces F facing upward in FIG. 4C of the workpieces Wa and Wb face the multi-axis machining head 16. In this state, the machining surfaces A of the workpieces Wa and Wb are simultaneously machined by the cutting tool groups 17a and 17b of the multi-axis machining head 16, respectively.

  Thereby, about the workpiece | work Wa, the process about the process surfaces C, F, B, and A is completed. On the other hand, with respect to the workpiece Wb, the jig body 6 is rotated 90 ° in the same direction as described above by the rotation mechanism 5 in the state where the machining surfaces C, F, B, and A are completed as in the workpiece Wa. The rotation angle is set to 0 ° again. Then, in cooperation with the transport mechanism 10 and the fixing mechanism 9 of the workpiece support mechanism 2, the workpiece Wb is paid out, the workpiece Wa is moved to the fixing portion 7b, and the unprocessed workpiece Wc is fixed to the fixing portion 7a.

  Thereafter, by repeating the above-described procedures of FIGS. 4A to 4D, it is possible to perform processing on the four processing surfaces for each of the workpieces Wb and Wc. In addition, as described above, fixing of the unprocessed workpiece W to the fixing portion 7a, transfer of the workpiece W that has been processed by the cutting tool group 17a to the fixing portion 7b, and workpiece that has completed processing by the cutting tool group 17b By repeatedly paying out W, the workpieces W (Wa, Wb,...) Can be sequentially processed.

  According to the present embodiment, the two workpieces W are fixed to the fixing portions 7a and 7b of the fixing plate 4, and the workpiece W is changed for each processing posture while changing the processing posture of each workpiece W by the fixing mechanism 9. Can be processed in parallel. Further, with respect to the portion of each workpiece W fixed to the fixing portions 7a and 7b on the side of the fixing plate 4, the posture of each workpiece W is opposed to the processing machine through the opening holes 8a and 8b of the fixing portions 7a and 7b. Processing can be performed by setting the posture.

  Moreover, since the fixing mechanism 9 rotates the fixing plate 4 around the rotation axis AX that is parallel to the plate surface and horizontal, the fixing plate 4 can be in a horizontal state. In this state, the workpiece W conveyed in the laid state can be placed and fixed on the fixing portions 7a and 7b of the fixing plate 4 as it is. For this reason, the conveyance mechanism 10 which conveys the workpiece | work W can be made simple.

  Therefore, the two workpieces W can be processed at the same time and in many processing postures while being supported by the workpiece support mechanism 2. Therefore, efficient processing of the workpiece W can be performed with a simple configuration.

  Further, the fixing portions 7a and 7b, the opening holes 8a and 8b, and the fixing mechanism 9 are configured such that the fixing posture of the workpiece W with respect to the fixing portions 7a and 7b is different from each other. For this reason, after the machining of the workpiece Wa by the cutting tool group 17a is completed, the workpiece Wa can be transferred to the fixing portion 7b and fixed in a posture different from that before the transfer.

  Accordingly, the workpiece Wa can be opposed to the processing machine with a processing posture different from the processing posture after the processing is completed. For this reason, all six surfaces of the workpiece Wa can be subjected to processing on the workpiece support mechanism 2. Therefore, the work W can be processed more efficiently.

  FIG. 5 is a plan view showing a processing apparatus according to another embodiment of the present invention. This processing apparatus 20 is configured using two workpiece support mechanisms 2 in FIG. 1 and two processing machines 3 in FIG. The two processing machines 3 are arranged so as to confront the workpiece support mechanism 2 from both sides. That is, the two processing machines 3 are provided so as to sandwich the fixed plate 4 around the rotation axis AX by the rotation mechanism 5. In this case, processing is performed in parallel from two directions by the two processing machines 3.

  According to this, the workpiece W can be simultaneously opposed to the two processing machines 3 for each processing posture and used for processing by the two processing machines 3. Therefore, the workpiece W can be processed more efficiently.

  Note that the present invention is not limited to the above-described embodiment. For example, three or more fixing portions on the fixing plate 4 may be provided, and three or more workpieces W may be simultaneously fixed on the fixing plate 4 and processed simultaneously.

DESCRIPTION OF SYMBOLS 1,20 ... Processing apparatus, 2 ... Work support mechanism, 3 ... Processing machine, 4 ... Fixing plate, 5 ... Rotation mechanism, 7a, 7b ... Fixing part, 9 ... Fixing mechanism, 8a, 8b ... Opening hole, AX ... Rotation Axis, W ... Workpiece.

Claims (3)

A processing apparatus for processing a workpiece with the processing machine while facing the processing machine in a plurality of processing postures necessary for processing by a workpiece support mechanism,
The workpiece support mechanism is
A fixed plate in which a plate surface is rotated around a horizontal rotation axis so as to have a positional relationship parallel to the rotation axis, and a plurality of fixed portions to which the workpieces are respectively fixed are placed on one plate surface. Those arranged in the direction of the rotation axis;
A fixing mechanism for detachably fixing the workpiece to each of the plurality of fixing parts;
A rotation mechanism that changes the posture of each workpiece fixed to the plurality of fixed portions by rotating the fixed plate around the rotation axis;
Each fixing portion of the fixing plate is provided with an opening hole for processing the portion of the workpiece fixed to the fixing portion on the fixing plate side from the other plate surface side of the fixing plate,
The machining apparatus, wherein the plurality of machining postures of the workpieces fixed to the plurality of fixing portions are changed synchronously by rotation of the fixed plate by the rotation mechanism.   The plurality of fixing portions, the opening holes, and the fixing mechanism are configured such that fixing postures of the workpieces with respect to the plurality of fixing portions are different between adjacent workpieces. Processing equipment. As the processing machine, comprising a plurality of devices provided so as to surround or sandwich the fixed plate around the rotation axis,
The processing apparatus according to claim 1, wherein the workpiece fixed to the fixing portion is processed in parallel from a plurality of directions by the plurality of processing machines.

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