JP2022171581A - Holding device, and holding method executed by use of holding device - Google Patents

Abstract

To provide a holding device which can automatically hold and fix a tabular processing object, and a holding method that is executed by use of the holding device.SOLUTION: A holding device 100 can lift up a processing object placed at a holding position from a top surface 101 of a fulcrum 11 in such a manner that each holding pillar 23 moves upward by drive of driving means 3, and then, can surround the processing object when the holding pillar 23 projects from an opening on an outer end part 132 side of a guide groove 13, and further, can pinch and hold the processing object when the holding pillar 23 is driven to the processing object.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a holding device and a holding method that is executed using the holding device, and more particularly, to a holding device that holds a plate-shaped workpiece to be punched so that it can be easily machined, and the holding device. and retention methods performed using

Conventional drilling equipment for drilling printed circuit boards (PCBs) having multiple laminations is described, for example, in US Pat. The conventional punching device first uses a tape to adhere and fix a plate-shaped workpiece to a machining table, and then punches the workpiece. This requires manual work, which is costly in terms of manpower and time, and poses the problem of difficulty in managing quality and efficiency.

Chinese Utility Model Registration No. 212193479

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a holding device capable of automatically holding and fixing a plate-shaped workpiece, and a holding method executed using the holding device.

In order to achieve the above object, the present invention provides a punching device for punching a plate-like object to be machined, in which the object to be machined is held substantially horizontally at a predetermined holding position on the top surface of a support base. wherein the holding device is attached to both the top surface of the support table and the bottom surface opposite to the top surface for one workpiece held at one holding position. at least three guide grooves each having an opening and extending along a first horizontal width direction of the holding position from an outer end outside the holding position to an inner end inside the holding position; , at least three holding posts respectively corresponding to the guide grooves, and arranged so as to be inserted into the corresponding guide grooves from the openings on the bottom surface side and protrude from the openings on the top surface side; , the movement of each of the holding posts in the vertical direction projecting from the opening on the top surface side with respect to the corresponding guide groove, and the movement in the first horizontal width direction along the corresponding guide groove. and driving means, wherein the outer ends of at least two of the guide grooves and the outer end of at least one of the other guide grooves of the at least three guide grooves are aligned with each other in the holding position. 1, and with this configuration, by driving the driving means, at least three of the holding columns move upward to move the corresponding guide grooves at the inner ends of the corresponding guide grooves. When protruding from the opening on the top surface side, the workpiece placed at the holding position can be lifted from the top surface of the support table, and the driving means drives the at least three holding columns upward. and protrudes from the opening on the top surface side at the outer end of the corresponding guide groove, the workpiece placed at the holding position is moved from both sides of the holding position in the first horizontal width direction. Further, by driving the driving means, the at least three holding columns are moved from both sides in the first horizontal width direction to the object to be processed placed at the holding position along the first horizontal width direction. Provided is a holding device configured to be able to sandwich and hold the object to be processed placed at the holding position when driven to move toward the holding position.

The holding device includes at least four of the guide grooves and at least four of the holding pillars respectively corresponding to the at least four guide grooves for one of the workpieces held at one of the holding positions. In addition, the driving means includes a plurality of pedestals that support each of the holding columns from below, and a vertical driving section that drives the vertical movement of each of the holding columns supported by each of the pedestals. and a horizontal drive portion for driving movement of each of said pedestals in said first horizontal width direction, and said at least four said guide grooves are aligned with said holding positions to which said outer ends correspond. at least two of the guide grooves arranged on one side in the first horizontal width direction of the holding position, and at least two of the guide grooves arranged on the other side of the holding position in the first horizontal width direction , and the guide grooves divided into the same group each have a second horizontal width substantially orthogonal to the first horizontal width direction at the outer end portion and the inner end portion. It is preferable that they are arranged and formed so as to correspond to each other so as to line up along the direction.

Further, the present invention is a holding method for holding a plate-like workpiece by holding it substantially horizontally between the holding position using the above-described holding device, comprising:
A equipment preparation step for preparing the holding device;
By the vertical driving portion of the driving means, each pedestal supporting each of the holding columns from below is lifted so that the holding columns protrude from the openings of the corresponding guide grooves in the top surface of the guide grooves. By the horizontal driving portion of the means, each pedestal supporting each of the holding columns from below is moved along the first horizontal width direction to the inner end portion of the corresponding guide groove, and then the an installation step of installing the workpiece above each of the holding pillars;
By lowering each pedestal supporting each of the holding columns from below by the vertical driving portion of the driving means to move the holding column to the lower side of the opening of the corresponding guide groove on the bottom surface. , a supporting step of supporting the workpiece placed above each of the holding columns on the top surface;
After each pedestal supporting each of the holding columns from below is moved along the first horizontal width direction to the outer end portion of the corresponding guide groove by the horizontal driving portion of the driving means, , by the vertical driving portion of the driving means, each pedestal supporting each of the holding columns from below is raised so that the holding columns protrude from the openings in the top surface of the corresponding guide grooves; an enclosing step of enclosing the workpiece supported on the top surface by each of the holding columns from both sides in the first horizontal width direction;
each pedestal supporting each of the holding columns from below is moved along the first horizontal width direction to the inner end side of the corresponding guide groove by the horizontal driving portion of the driving means; a holding step of holding the workpiece supported on the top surface by each of the holding columns substantially horizontally at the holding position by sandwiching the workpiece from both sides in the first horizontal width direction;
is also provided.

With the above configuration, the holding device of the present invention can automatically hold and fix a plate-shaped object to be processed by placing it on the support base from a position where it is automatically lifted from the lower side, and then sandwiching it from the outside. Work can be eliminated, and the quality can be uniformly and efficiently perforated for the object to be machined.

1 is a top perspective view showing a support base of a first embodiment of a holding device of the present invention; FIG. FIG. 2 is a cross-sectional view showing a cross section taken along line II-II in FIG. 1; It is the perspective view seen from the lower side where the same 1st Embodiment is shown. FIG. 2 is a partial top view showing the first embodiment; It is a partial front view showing the first embodiment. It is a perspective view showing the configuration of the driving means and the holding column driven by the driving means in the first embodiment. FIG. 4 is a perspective view showing the configuration of a holding column and a pedestal that holds the holding column in the first embodiment; FIG. 10 is a perspective view seen from the upper side showing how the holding column is exposed from the top surface of the support base; FIG. 4 is a top view showing how three workpieces are held by the first embodiment; 4 is a flow chart showing the holding method of the present invention using the holding device of the present invention; FIG. 4 is a cross-sectional view showing the appearance of the first embodiment of the holding device of the present invention when holding a workpiece by executing the holding method of the present invention; FIG. 4 is a cross-sectional view showing the appearance of the first embodiment of the holding device of the present invention when holding a workpiece by executing the holding method of the present invention; FIG. 4 is a cross-sectional view showing the appearance of the first embodiment of the holding device of the present invention when holding a workpiece by executing the holding method of the present invention; FIG. 4 is a cross-sectional view showing the appearance of the first embodiment of the holding device of the present invention when holding a workpiece by executing the holding method of the present invention; FIG. 4 is a cross-sectional view showing the appearance of the first embodiment of the holding device of the present invention when holding a workpiece by executing the holding method of the present invention; FIG. 4 is a cross-sectional view showing the appearance of the first embodiment of the holding device of the present invention when holding a workpiece by executing the holding method of the present invention; FIG. 4 is a cross-sectional view showing the state of the first embodiment of the holding device of the present invention when the holding method of the present invention is executed to release the holding of the workpiece. FIG. 4 is a cross-sectional view showing the state of the first embodiment of the holding device of the present invention when the holding method of the present invention is executed to release the holding of the workpiece. FIG. 4 is a cross-sectional view showing the state of the first embodiment of the holding device of the present invention when the holding method of the present invention is executed to release the holding of the workpiece. FIG. 11 is a perspective view showing the configuration of a second embodiment of the holding device of the present invention; It is a bottom view showing the configuration of the support base of the second embodiment. FIG. 10 is a top view showing how the second embodiment holds a workpiece; FIG. 11 is a side view showing how the object to be processed is lifted using the second embodiment;

Each embodiment of the holding device of the present invention will be described in detail below with reference to the drawings.

A first embodiment of a holding device 100 of the present invention is shown in FIGS. In a drilling device that performs drilling by means of a punch, the workpieces (9a, 9b, 9c) are held substantially horizontally at predetermined holding positions (10a, 10b, 10c) on the top surface 101 of the support base 11, respectively. .

In addition, the holding device is formed on the support table 11 for one processing object (9a, 9b, 9c) held in one holding position (that is, one of 10a, 10b, 10c in the drawing). a plurality of guide grooves 13, a plurality of holding columns 23 respectively corresponding to the guide grooves 13, and driving means 3 for driving the respective holding columns 23.

Specifically, in this embodiment, six guide grooves 13 are provided for one holding position (10a, 10b, 10c). Each of the guide grooves 13 has an opening on both the top surface 101 of the support base 11 and the bottom surface 102 on the opposite side of the top surface 101, and is positioned at the first position (10a, 10b, 10c) of the holding position (10a, 10b, 10c). along the horizontal width direction X of each corresponding holding position (10a, 10b, 10c) from the outer end 132 outside the holding position (10a, 10b, 10c) to the inner end 133 inside the holding position (10a, 10b, 10c) Each guide groove 13 and another guide groove 13 adjacent to the guide groove 13 are separated from each other in the second horizontal width direction Y substantially orthogonal to the first horizontal width direction X. Arrangement is formed.

Incidentally, in this embodiment, the support base 11 is composed of a plurality of support base members.

Each holding column 23 corresponds to each guide groove 13, and is arranged and configured so that the corresponding guide groove 13 can be inserted from the opening on the bottom surface 102 side and protrude from the opening on the top surface 101 side. .

The driving means 3 moves in the vertical direction Z protruding from the opening on the top surface 101 side with respect to the corresponding guide groove 13 of each holding column 23 and moves in the first horizontal width direction X along the corresponding guide groove 13. In this embodiment, the driving means includes a plurality of pedestals 30 that support each of the holding posts 23 from below, and each of the holding posts 23 supported by each of the pedestals 30 in the vertical direction Z. It is configured to have a vertical drive section 31 for driving movement and a horizontal drive section 32 for driving movement in the first horizontal width direction X of each pedestal 30 .

Also, in this embodiment, the six guide grooves 13 corresponding to one holding position (10a, 10b, 10c) are arranged such that the outer ends 132 are aligned with the corresponding holding positions (10a, 10b, 10c) in the first horizontal direction. Three guide grooves 13 (first group 130) arranged on one side in the width direction X and the holding positions (10a, 10b, 10c) arranged on the other side in the first horizontal width direction X The two guide grooves 13 (second group 131) are divided into two groups, and the two guide grooves 13 divided into the same group have an outer end 132 and an inner end 133, respectively. are aligned along the second horizontal width direction Y so as to correspond to each other.

As described above, in this embodiment, six guide grooves 13 are provided for one holding position (10a, 10b, 10c). The number of retaining posts 23 corresponding to 13 is at least three. That is, if there are three, the holding device of the present invention can exhibit a sufficient holding effect on the objects to be processed (9a, 9b, 9c). When three guide grooves 13 are formed for one holding position (10a, 10b, 10c), one of the guide grooves 13 of the first group 130 and the guide groove 13 of the second group 131 is two. and only one other. That is, the outer ends 132 of at least two guide grooves 13 of the three guide grooves 13 and the outer end 132 of the other guide groove 13 are positioned at the first positions of the holding positions (10a, 10b, 10c). are arranged on both sides in the horizontal width direction X of the .

It is also possible to form two each of the guide grooves 13 of the first group 130 and the guide grooves 13 of the second group 131 . When the size of the object to be held is large, a more stable holding effect can be expected by increasing the number of guide grooves 13 and the number of holding posts 23 corresponding to each guide groove 13 .

With the above configuration, at least three (six in this embodiment) holding columns 23 are moved upward by driving the driving means 3 so that the inner ends 133 of the corresponding guide grooves 13 are located on the top surface 101 side. When projected from the opening, the workpieces (9a, 9b, 9c) placed at the corresponding holding positions (10a, 10b, 10c) can be lifted from the top surface 101 of the support table 11, and driven by the driving means 3. , when the at least three holding posts 23 move upward and protrude from the openings on the top surface 101 side at the outer ends 132 of the corresponding guide grooves 13, they are placed in the corresponding holding positions (10a, 10b, 10c). The objects to be processed (9a, 9b, 9c) to be processed can be surrounded from both sides in the first horizontal width direction X of the holding positions (10a, 10b, 10c) (see FIG. 8), and further driven by the driving means 3, At least three holding posts 23 are directed from both sides in the first horizontal width direction X toward the workpieces (9a, 9b, 9c) placed at the holding positions (10a, 10b, 10c) along the first horizontal width direction X. When driven in this way, the workpiece placed at the holding positions (10a, 10b, 10c) can be sandwiched and held between the holding positions (10a, 10b, 10c) (see FIG. 9).

Furthermore, as illustrated, in this embodiment, a first holding position 10a and a second holding position 10b are provided on the top surface 101 of the support table 11 corresponding to the three workpieces 9a, 9b, and 9c. , and the third holding position 10c in a substantially horizontal manner.

Correspondingly, the six guide grooves 13 corresponding to the second holding position 10b are arranged in the first horizontal width direction X of each of the six guide grooves 13 corresponding to the first holding position 10a. placed at the destination.

A pedestal 30 that holds six holding posts 23 corresponding to the first holding positions 10a, and a second holding that is arranged at the extension destination of the guide groove 13 corresponding to the holding posts 23 in the first horizontal width direction X. Six interlocking rods 33 are attached between the pedestal 30 holding the holding column 23 corresponding to the guide groove 13 corresponding to the position 10b.

Further, the six guide grooves 13 corresponding to the third holding position 10c are arranged at extension destinations in the first horizontal width direction X of the six guide grooves 13 respectively corresponding to the second holding positions 10b, A pedestal 30 that holds six holding posts 23 corresponding to the second holding positions 10b, and a third holding that is arranged at the extension destination of the guide groove 13 corresponding to the holding posts 23 in the first horizontal width direction X. Six interlocking rods 33 are also attached between the pedestal 30 holding the holding column 23 corresponding to the guide groove 13 corresponding to the position 10c.

Further, the horizontal drive unit 32 is connected to one pedestal 30 on one side of three pedestals 30 connected by two interlocking rods 33 in the first horizontal width direction X to drive the pedestal 30. It has a plurality of drive pistons 321 . The plurality of drive pistons 321 are configured to drive the movement in the first horizontal width direction X of each pedestal 30 and the holding column 23 supported by each pedestal 30 . Further, each drive piston 321 has a piston cylinder 321a extending along the first horizontal width direction X, and a piston rod 321b that performs a piston movement with respect to the piston cylinder 321a. Each holding column 23 supported by a pedestal 30 to which the piston rod 321b is connected and another pedestal 30 connected to the pedestal 30 via an interlocking rod 33 are driven along the first horizontal width direction.

Each pedestal 30 is arranged below the support 11 , and the vertical drive section 31 of the driving means 3 has a vertical drive unit 311 arranged on each pedestal 30 .

As shown in FIG. 7, in this embodiment, each holding post 23 has a column portion 231 extending vertically and a contact portion 232 extending laterally from the upper end of the column portion 231. The upper surface of the contact portion 232 can be used to lift the workpiece ( 9 a , 9 b , 9 c ) or press it against the top surface 101 .

As described above, in the first embodiment, three workpieces (9a, 9b, 9c) are sandwiched and held from left and right (first horizontal width direction X) using six holding columns 23, respectively. However, the present invention is not limited to this, and if it is possible to sandwich and hold the object to be processed from the left and right (first horizontal width direction X), the holding column 23 and the guide corresponding to the holding column 23 The number of grooves 13 may be four or eight, and if at least three holding columns 23 and guide grooves 13 corresponding to the holding columns 23 are provided, the workpiece can be stably held.

In addition, in this embodiment, the first holding position 10a, the second holding position 10b, and the third holding position 10c are configured for the three workpieces (9a, 9b, 9c). The present invention is not limited to this, and it is conceivable to add fourth and fifth holding positions, or to have only the first holding position and the second holding position. Since a plurality of pedestals 30 arranged in the first horizontal width direction X can be driven by only one driving piston 321, the number of parts can be reduced by increasing the number of holding positions, and the advantage of increasing productivity can be obtained. be done. On the other hand, since the driving force from one drive piston 321 is distributed to a plurality of pedestals 30, when the number of holding positions is increased, it is possible to provide sufficient driving force to each pedestal 30 by driving according to the number of pedestals 30. The output of piston 321 needs to be set.

Furthermore, although the present invention is configured to drive the movement of each holding column 23 in the vertical direction Z using each vertical drive unit 311 of the vertical drive section 31, the upper surface of the contact portion 232 of each holding column 23 is used. By lifting the objects to be processed (9a, 9b, 9c) by using a manipulator, the objects to be processed (9a, 9b, 9c) can be easily transported to other processing equipment, for example, so there is also the advantage of contributing to the automation of the entire processing line. can get.

A second embodiment of the present invention is shown in FIGS. 13-16, wherein as shown, a second embodiment of a holding device 100 of the present invention includes three workpieces (9a, 9b, 9c). It is possible to adopt a configuration that corresponds to only one processing object 9a without the need to correspond to . In this case, there is no need to use an interlocking rod, and each driving piston 321 of the horizontal driving section 32 drives only one pedestal 30, so that a stronger driving force can be output to the corresponding pedestal 30. can be done.

FIG. 10 is a flow chart showing the holding method of the present invention using the holding device of the present invention, and FIGS. 12A to 12C are cross-sectional views showing the state of the first embodiment of the holding device of the present invention, and FIGS. FIG. 4 is a cross-sectional view showing the appearance of the first embodiment of the holding device of the present invention when released;

As shown in the figure, the holding method of holding the plate-shaped workpieces (9a, 9b, 9c) at the holding positions (10a, 10b, 10c) by holding them substantially horizontally using the holding device of the present invention is first described. A holding device of the invention is prepared (equipment preparation step 80).

Then, as shown in FIGS. 11A and 11B, the pedestals 30 supporting the respective holding columns 23 from below are lifted by the vertical driving portion 31 of the driving means 3 to move the holding columns 23 into the corresponding guide grooves 13. As shown in FIGS. The pedestals 30 that protrude from the openings in the top surface 101 of the above and support the respective holding columns 23 from below by the horizontal driving portion 32 of the driving means 3 are arranged along the first horizontal width direction X to correspond to the After moving to the inner end portion 133 of the guide groove 13, the workpieces (9a, 9b, 9c) are installed above the respective holding columns 23 (installation step 81).

Then, as shown in FIG. 11C, the vertical driving portion 31 of the driving means 3 lowers the pedestals 30 that support the respective holding columns 23 from below, so that the holding columns 23 are aligned with the bottom surfaces of the corresponding guide grooves 13. As shown in FIG. The workpieces (9a, 9b, 9c) placed above the holding columns 23 are supported on the top surface 101 by moving to the lower side of the opening in 102 (supporting step 82).

Then, as shown in FIGS. 11D and 11E , each pedestal 30 supporting each holding column 23 from below is moved along the first horizontal width direction X by the horizontal driving portion 32 of the driving means 3 . After moving the guide groove 13 to the outer end portion 132 (FIG. 11D), the vertical drive portion 31 of the drive means 3 lifts the pedestals 30 that support the respective holding columns 23 from below. from the openings of the corresponding guide grooves 13 on the top surface 101, the workpieces (9a, 9b, 9c) supported on the top surface 101 by the respective holding columns 23 are moved from both sides in the first horizontal width direction X. surround (FIG. 11E, surround step 83).

Then, as shown in FIG. 11F, each pedestal 30 supporting each holding column 23 from below is moved along the first horizontal width direction X by the horizontal driving portion 32 of the driving means 3 to the corresponding guide groove. 13 to the inner end portion 133 side of each holding column 23, the workpieces (9a, 9b, 9c) supported on the top surface 101 by the respective holding columns 23 are sandwiched from both sides in the first horizontal width direction X, and corresponding It is held substantially horizontally at the holding positions (10a, 10b, 10c) (holding step 84). At this time, when each holding column 23 is lowered, the corresponding machining objects (9a, 9b, 9c) are pressed against the top surface 101 by the contact portions 232 of the holding columns 23. While the objects (9a, 9b, 9c) are held substantially horizontally and stably in the corresponding holding positions (10a, 10b, 10c) by the corresponding holding posts 23, for each processing object (9a, 9b, 9c): drilling can be performed.

12A, the horizontal drive section 32 of the driving means 3 drives the pedestals that support the holding columns 23 from below, respectively, after the perforating process for the respective machining objects (9a, 9b, 9c) is completed. 30 is moved along the first horizontal width direction X to the outer end 132 of the corresponding guide groove 13, so that the workpiece is held substantially horizontally at the corresponding holding positions (10a, 10b, 10c). (9a, 9b, 9c) are released (release step 85).

Then, as shown in FIG. 12B, the vertical driving portion 31 of the driving means 3 lowers the pedestals 30 that support the respective holding columns 23 from below, and the horizontal driving portion 32 of the driving means 3 moves the respective pedestals 30 downward. Each pedestal 30 supporting each of the holding columns 23 from below is moved along the first horizontal width direction X to the inner end portion 133 of the corresponding guide groove 13 (moving step 86).

Then, as shown in FIG. 12C, the pedestals 30 supporting the respective holding columns 23 from below are lifted by the vertical driving portion 31 of the driving means 3 so that the holding columns 23 are aligned with the top surfaces of the corresponding guide grooves 13. As shown in FIG. The workpieces (9a, 9b, 9c) held substantially horizontally in the corresponding holding positions (10a, 10b, 10c) are lifted (lifting step 87) by protruding from the openings in 101 and then by the respective holding posts 23. Each lifted workpiece (9a, 9b, 9c) can be removed (removal step 88).

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these, and includes all modifications and equivalent configurations as various configurations included within the spirit and scope of the broadest interpretation. It shall be.

The holding device of the present invention can automatically hold and fix a plate-like workpiece by placing it on the support table from a position where it is lifted from the lower side, and then pinching it from the outside, so that manual work using tape can be eliminated. In addition, it is possible to carry out perforating processing on the object to be processed with uniform quality and efficiency.

REFERENCE SIGNS LIST 100 holding device 101 top surface 102 bottom surface 10a (first) holding position 10b (second) holding position 10c (third) holding position 11 support base 13 guide groove 130 first group 131 second group 132 Outer end 133 Inner end 23 Holding column 231 Column body 232 Contact part 3 Driving means 30 Pedestal 31 Vertical driving part 311 Vertical driving unit 32 Horizontal driving part 321 Driving piston 321a Piston cylinder 321b Piston rod 9a Processing object
9b Processing target
9c Processing object
X First horizontal width direction Y Second horizontal width direction Z Vertical direction

Claims (10)

A holding device for punching a plate-like object to be punched, in which the object is held substantially horizontally at a predetermined holding position on the top surface of a support base,
For one workpiece held at one holding position, the holding device:
having openings on both the top surface and the bottom surface opposite to the top surface of the support base, and along the first horizontal width direction of the holding position, outer ends respectively outside the holding position; at least three guide grooves extending from a portion to an inner end inside said holding position;
at least three holding posts respectively corresponding to the guide grooves and arranged so as to be inserted into the corresponding guide grooves from the openings on the bottom surface side and protrude from the openings on the top surface side;
A drive for driving each of the holding posts to move in the vertical direction projecting from the opening on the top surface side with respect to the corresponding guide groove and in the first horizontal width direction along the corresponding guide groove. comprising means and
The outer end portions of at least two of the at least three guide grooves and the outer end portion of at least one other guide groove are arranged on both sides of the holding position in the first horizontal width direction. are placed in each
When the at least three holding columns are driven by the driving means to move upward and protrude from the openings on the top surface side at the inner ends of the corresponding guide grooves, the machining is placed at the holding position. an object can be lifted from the top surface of the support;
When the at least three holding columns are driven by the driving means to move upward and protrude from the openings on the top surface side at the outer ends of the corresponding guide grooves, the holding columns are placed in the holding positions. The object to be processed can be surrounded from both sides of the holding position in the first horizontal width direction,
further driving the at least three holding columns from both sides in the first horizontal width direction toward the workpiece placed at the holding position along the first horizontal width direction by driving the driving means; A holding device configured to be able to sandwich and hold the object to be processed placed at the holding position at the holding position. For one processing object held at one holding position,
at least four of the guide grooves and at least four of the holding posts respectively corresponding to the at least four of the guide grooves;
The driving means includes a plurality of pedestals that support each of the holding columns from below, a vertical driving unit that drives the movement of each of the holding columns supported by each of the pedestals in the vertical direction, and the pedestal. a horizontal drive unit for driving movement in the first horizontal width direction of each of
Also, at least four of the guide grooves are
At least two guide grooves arranged on one side of the holding position corresponding to the outer end in the first horizontal width direction, and on the other side of the holding position in the first horizontal width direction at least two guide grooves arranged, and
The guide grooves divided into the same group correspond to each other such that the outer end portion and the inner end portion thereof are aligned along a second horizontal width direction substantially orthogonal to the first horizontal width direction. 2. A retaining device according to claim 1, characterized in that it is arranged in such a way that: holding the two objects to be processed substantially horizontally at a first holding position and a second holding position on the top surface of the support table;
The at least four guide grooves corresponding to the second holding positions are arranged at extension ends in the first horizontal width direction of the at least four guide grooves respectively corresponding to the first holding positions. cage,
the horizontal driving portion of the driving means has at least four interlocking rods extending along the first horizontal width direction;
The at least four interlocking rods comprise the pedestal holding the at least four holding posts corresponding to the first holding positions, and the guide grooves corresponding to the holding posts extending in the first horizontal width direction. 3. The holding device according to claim 2, wherein said guide groove corresponding to said second holding position arranged earlier is mounted between said pedestal holding said holding column corresponding to said guide groove. . The horizontal drive part of the drive means has at least four drive pistons respectively corresponding to the interlocking rods and connected to one of the bases to which the corresponding interlocking rods are connected; Each of the pistons includes a piston cylinder extending along the first horizontal width direction, a base to which the drive piston is connected by piston movement with respect to the piston cylinder, and a base to which the drive piston is connected via the interlocking rod. 4. The holding device according to claim 3, wherein each of said holding posts supported by another pedestal connected to each other is driven along said first horizontal width direction. holding the three objects to be processed substantially horizontally at a first holding position, a second holding position, and a third holding position on the top surface of the support table;
at least four of the guide grooves corresponding to the second holding position are arranged at extension ends in the first horizontal width direction of each of the at least four guide grooves corresponding to the first holding position;
At least four of the guide grooves corresponding to the third holding position are arranged at respective ends of the at least four guide grooves corresponding to the second holding position in the first horizontal width direction. and
the horizontal driving portion of the driving means has at least eight interlocking rods extending along the first horizontal width direction;
At least four interlocking rods among the at least eight interlocking rods have the pedestal holding the at least four holding posts respectively corresponding to the first holding positions, and the first guide grooves of the guide grooves to which the holding posts correspond. and the pedestal holding the holding column corresponding to the guide groove corresponding to the second holding position arranged at the extension in the horizontal width direction of the
The other at least four interlocking rods are composed of the pedestals that hold the at least four holding columns corresponding to the second holding positions, and the guide grooves corresponding to the holding columns in the first horizontal width direction. 3. The pedestal holding the holding column corresponding to the guide groove corresponding to the third holding position arranged at the extension of the pedestal according to claim 2, wherein holding device. The horizontal driving portion of the driving means has at least four driving pistons respectively connected to the pedestals, and each of the driving pistons extends in the first horizontal width direction. and a piston rod for driving, along the first horizontal width direction, each of the holding posts supported by the corresponding pedestals by piston movement relative to the piston cylinder. 3. A retaining device according to claim 2. Each of the pedestals is arranged under the support base, and the vertical drive section of the driving means has a vertical drive unit arranged on each of the pedestals. 3. The retaining device of claim 2. Each of the holding columns has a column portion extending vertically and a contact portion extending laterally from the upper end of the column portion, and the upper surface of the contact portion is used to lift the object to be processed, or 2. A retaining device according to claim 1, characterized in that it can be pressed against said top surface. A holding method for holding a plate-like workpiece by sandwiching it substantially horizontally at the holding position using the holding device according to claim 2,
A equipment preparation step of preparing the holding device according to claim 2;
each of the pedestals supporting each of the holding columns from below is lifted by the vertical driving portion of the driving means so that each of the holding columns protrudes from the opening in the top surface of the corresponding guide groove; After each pedestal supporting each of the holding columns from below is moved along the first horizontal width direction to the inner end portion of the corresponding guide groove by the horizontal driving portion of the driving means. , an installation step of installing the workpiece above each of the holding columns;
The pedestals supporting the respective holding columns from below are lowered by the vertical driving portion of the driving means to move the holding columns to the lower side of the openings of the corresponding guide grooves on the bottom surface. a supporting step of supporting the workpiece placed above each of the holding columns on the top surface;
Each of the pedestals supporting each of the holding columns from below is moved along the first horizontal width direction to the outer end of the corresponding guide groove by the horizontal driving portion of the driving means. Then, the pedestals supporting the respective holding columns from below are lifted by the vertical driving portion of the driving means to project the holding columns from the openings of the corresponding guide grooves in the top surface. a surrounding step of surrounding the workpiece supported on the top surface by each of the holding columns from both sides in the first horizontal width direction;
The pedestals supporting the respective holding columns from below are moved along the first horizontal width direction toward the inner end portions of the corresponding guide grooves by the horizontal driving portion of the driving means. a holding step of holding the workpiece supported on the top surface by each of the holding pillars from both sides in the first horizontal width direction and substantially horizontally holding the workpiece at the holding position;
is performed. after said holding step,
Each of the pedestals supporting each of the holding columns from below is moved along the first horizontal width direction to the outer end of the corresponding guide groove by the horizontal driving portion of the driving means. a release step for releasing the workpiece held substantially horizontally at the holding position;
Each of the pedestals that support the respective holding columns from below is lowered by the vertical driving portion of the driving means, and each of the holding columns is moved downward by the horizontal driving portion of the driving means. a moving step of moving each of the supporting pedestals along the first horizontal width direction to the inner end of the corresponding guide groove;
By using the vertical driving portion of the driving means to raise each of the pedestals that support each of the holding columns from below to project the holding columns from the openings of the corresponding guide grooves in the top surface, 10. The holding method according to claim 9, wherein a lifting step of lifting the workpiece held substantially horizontally at the holding position is performed.

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