JPH03100200A - Work holder for plating treatment device - Google Patents

Abstract

PURPOSE:To improve the efficiency over the entire part of a plating treatment operation by mounting a small number of works to bar-shaped jigs and mounting the many jigs to a rack, thereby increasing the mounting density of the works to the rack. CONSTITUTION:A pair of upper and lower annular members 1, 2 are connected by plural connecting members 3 to constitute the rack R. The upper extension parts of the connecting members 3 are connected to a saddle 5 and a hook 7 is provided via the connecting members 6. Many clips 10 are attached radially by means of screws 11 to the outer periphery of the annular parts 1, 2. The clips 10 are formed by bending a long band-shaped leaf spring to a U or V shape and have elasticity. The bar-shaped jigs J are inserted by each of a pair of the upper and lower clips 10 and are elastically held. These jigs are made to abut on the flange parts 12 of the annular members 1, 2. Three sets of a pair of upper and lower fingers 13 are projectingly provided and the works are inserted between respective pairs of the fingers 13 and are thereby elastically held. Thus, the works W to be attached to the respective bar-shaped jigs J are small in number, the attachment of the many racks R is possible and the efficiency over the entire part of the plating treatment operation is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a plating processing apparatus for plating a large number of small workpieces (objects to be plated) attached to a common jig.

[Prior art and problems to be solved by the invention] Generally I
When processing small parts such as C packages by immersing them in a plating solution, a large number of workpieces (IC packages) are attached to a common jig, and the jig is transported by a transport mechanism and immersed in various processing tanks one after another. It looks like this. In order to improve the efficiency of processing work, it is desirable to increase the number of workpieces that can be attached to one jig, but if the density of workpiece attachment is increased in this way, attaching workpieces to the jig becomes more laborious. Problems arise in that the installation process is difficult to automate.

The present invention provides an apparatus in which a small number of workpieces are attached to a rod-shaped jig, and a large number of such jigs are attached to a rack (separate large-sized jig) to perform plating processing, thereby solving the above problems. This is an attempt to solve the problem.

[Means for Solving the Problems] The present invention includes a pair of annular members located vertically apart from each other, a connecting member that connects the separated annular members, and a connecting member fixed to each annular member and arranged radially outwardly of the annular members. a plurality of clips protruding radially to the annular member, each clip having elasticity in the circumferential direction of the annular member, and an end of a rod-shaped jig extending vertically between each pair of clips adjacent in the circumferential direction; The present invention provides a rack for a plating processing apparatus, characterized in that the rack can be inserted and held from the outside in the radial direction.

Further, in the present invention, a large number of rod-shaped jigs are held on the radially outer side of a generally cylindrical rack at intervals in the circumferential direction in a vertically extending posture, and a plurality of workpieces are arranged vertically in each jig. There is a tray that accommodates multiple jigs with workpieces mounted on them, lined up on the same plane before they are mounted on the rack, and a tray that holds the jigs in a horizontal position. A tray transfer mechanism that transfers the tray, a tray rotation mechanism that rotates the tray from a horizontal position to a vertical position, a rack support mechanism that supports the rack near the tray rotation mechanism, and a jig from the tray in the vertical position. A jig mounting mechanism that takes out a jig and attaches it to a rack on a rack support mechanism, and a rack indexing mechanism that intermittently rotates the rack support mechanism and thereby changes the circumferential position of the rack that receives the jig. A workpiece holding device for a plating processing apparatus is provided.

Furthermore, the present invention provides a number of clips protruding radially outward in the upper and lower parts of the generally cylindrical rack, and a rod-shaped jig with a workpiece mounted thereon is removably fixed in the gap between the clips. a jig mounting mechanism for holding the jig and mounting it between the clips;
The present invention provides a workpiece attachment/detachment device for a plating processing apparatus, characterized in that it is provided with a jig removal mechanism for removing the metal from between the clips.

Further, in the present invention, a large number of rod-shaped jigs are held on the radially outer side of a generally cylindrical rack at intervals in the circumferential direction in a vertically extending posture, and each jigs holds a plurality of workpieces vertically. There is a tray that accommodates multiple jigs with workpieces mounted side by side, and a tray that accommodates multiple jigs with workpieces mounted on the same plane, and a tray that accommodates the two trays in a horizontal position before they are mounted on the rack. a rack support mechanism that supports two racks spaced apart in a horizontal direction parallel to the vertical plane; and a jig mounting mechanism located between each of the trays and each rack on the rack support mechanism opposite thereto, each jig mounting mechanism includes a movable frame that rotates about a vertical axis, and a movable frame that rotates about a vertical axis; Equipped with a drive mechanism that rotates the frame half a rotation at a time, and two workpiece operation units that take out jigs from the tray and attach them to the rack, and both workpiece operation units are located on opposite sides of the movable frame. The drive mechanism rotates the movable frame so that each workpiece operation section moves between the position where the jig is taken out and the position where the jig is attached. In this case, the workpiece operation section is arranged so that the workpiece operation section at the position where the above-mentioned take-out is performed occupies a position away from the other movable frame, and the workpiece operation section at the position where the above-mentioned attachment is performed occupies a position close to the other movable frame. The present invention provides a workpiece holding device for a plating processing apparatus, characterized in that the position of the workpiece is set.

[Example] FIG. 1 is a schematic perspective view of a jig J for mounting a workpiece W and a rack R for mounting the jig J. Rack R
includes a pair of annular members 1.2 vertically spaced apart from each other and a plurality of connecting members 3 extending vertically. The connecting members 3 are arranged at intervals in the circumferential direction of the annular member 1,
The annular members 1.2 are connected to each other. The connecting member 3 protrudes upward from the annular member 2 and is connected to the saddle 5.

Although not shown, the saddle 5 is composed of an assembly of a plurality of members, and the entire saddle 5 extends horizontally in a plate shape.

A connecting member 6 projecting upward is provided at the center of the saddle 5, and a hook 7 is provided at the upper end of the connecting member 6.

Figure 2 is a schematic cross-sectional view of Figure 1 along ■-■.
As is clear from the drawings and FIG. 1, a number of clips 10 are attached to the outer periphery of the annular member 1.2, extending radially from the outer periphery of the annular member 1.2. The clip 10 is constructed by bending a long strip-shaped leaf spring into a wave or bellows shape, and extends in an annular manner around the annular member 1.2 as a whole.

Each clip 10 extending in the radial direction is composed of a U-shaped or nearly V-shaped bent portion, and thus the clip 1
0 has elasticity in the circumferential direction of the annular member 1 (2).

The proximal end of the clip 10 is continuous with the proximal end of an adjacent clip 10. This continuous base end portion is fixed to the outer peripheral surface of the annular member 1 or 2 by a screw 11.

The jig J is rod-shaped and extends vertically, and its upper and lower ends fit between each pair of clips 10 and 10, and are elastically held by the clips 10. Annular member 1.
2 is equipped with a flange 12 (Fig. 2) that protrudes outward in the radial direction from the base end of the clip 10, and when the jig J comes into contact with the outer periphery of this flange 12, the jig J is location has been determined.

According to this structure, the jig J is fixed to the rack R by inserting the jig J between the pair of clips 10 from the outside in the radial direction. Also, by pulling the jig J attached to the rack R outward in the radial direction, the jig J is attached to the clip 10.
It can be removed from Of course, since the rack R is equipped with a large number of clips 10 radially, by inserting the jigs J between each two clips 10, a large number of jigs J can be installed adjacent to each other in the rack R as a whole. be able to.

As shown in FIG. 1, the jig J that extends vertically is provided with three sets of workpiece holding parts at parts other than both ends. Each set of work holding parts is formed by a pair of upper and lower fingers 13, and each finger 13 is formed by two rod-shaped or linear springs spaced apart horizontally. As shown in the figure, each finger 13 protrudes outward in the radial direction of the rack R from the jig J when the jig J is attached to the rack R.
A workpiece W is fitted between the pair of fingers 13 and held elastically.

Next, the overall structure of a plating processing apparatus using the jig J and rack R shown in FIG. 1 will be explained.

FIG. 3 is a schematic plan view showing a part of the plating processing equipment.

The jig J with the workpiece W (FIG. 1) mounted thereon is accommodated in a tray T and fed by the tray transfer mechanism 20, as shown at the upper right end of FIG. The tray T is a flat rectangular box with an open top surface, and a large number of jigs J are accommodated in the tray T in a state parallel to each other and spaced apart along the opening surface.

The tray transport mechanism 20 is composed of a general conveyor, and a plurality of trays T are stacked on the transport surface of the conveyor. FIG. 3 shows three such stacked tray groups, and the jig J is schematically illustrated only for the uppermost tray of one of the tray groups. The tray transfer mechanism 20 arranges the trays in a line and transfers them in the lateral direction of the processing equipment as shown by arrow A. A tray holder 21 is provided at the outlet of the tray transfer mechanism 20. A tray distributing mechanism 22 is provided between the tray holder 21 and the outlet of the tray transfer mechanism 20. The tray distribution mechanism 22 takes out the trays T stacked on the tray transfer mechanism 20 one by one and arranges them on the tray receiving stand 21. A suitable transfer mechanism is incorporated in the tray holder 21, and the trays T separated by the distribution mechanism 22 are arranged in pairs on the tray holder 21 in the vertical and horizontal directions.

A tray rotation mechanism 25 is also provided in the front half of the tray holder 21 in the vertical direction (direction of arrow B). The tray rotation mechanism 25 acts on the two trays T on the front half of the tray pedestal 21, and specifically rotates the two trays T side by side in a horizontal position from below. Hold it and rotate it upward and forward in the vertical direction (in the direction of arrow B) to raise the two trays T to a vertical position. In this standing position, the axis J within the tray T is in a vertical position.

In front of the tray rotating mechanism 25, a pair of jig mounting mechanisms 30 are provided at a distance in the lateral direction.

Each jig mounting mechanism 30 is constructed as described below, and a jig J is taken out from within the tray T raised by the tray rotation mechanism 25 and mounted on the rack R as described above.

In order to support the rack R at the position where the jig J is mounted in this way, two rack support mechanisms 31 are provided in front of both jig mounting mechanisms 30 in the vertical direction so as to be lined up horizontally with each other. This rack support mechanism 31 basically consists of a rack R
It is configured to support the rack R from above and below, and is connected to an index mechanism (not shown) for intermittently rotating the rack R in accordance with the angular pitch of the clip 10 shown in FIG.

Further, between the tray holder 21 and the jig mounting mechanism 30, there is a tray feeding mechanism 32 for intermittently moving the tray T raised by the tray rotation mechanism 25 laterally forward (in the direction of the arrow). is the provision. This tray feeding mechanism 32 has a structure similar to a conveyor mechanism on a boat, and the tray T is attached to its jig J intermittently by a distance corresponding to the pitch (the distance between two adjacent jigs 3). It is designed to be moved.

Using the above-described mechanism, the jig J is attached from the tray T to the rack R as follows.

When the two trays T are erected side by side by the tray rotation mechanism 25, first, each jig mounting mechanism 30
The jig J from the front end of the corresponding tray T in the lateral direction is taken out and mounted on the corresponding rack R.

When this mounting work is completed, the tray feeding mechanism 32 advances both trays T by the jig mounting pitch, and the rack support mechanism 31 rotates the rack R by an angle corresponding to the angular pitch of the clip 10 or a multiple thereof. Next, the jig mounting mechanism 30 takes out a new jig J from the tray T and places it on the rack R.
Attach jig J to a different position. By repeating such operations, all the jigs J are taken out from each tray T, and the jigs J are mounted at all predetermined positions on the rack R.

The rack R on which the jigs J have been attached is transported to the processing area 40 by a transport mechanism (not shown).

Empty racks R are also supplied to the rack support mechanism 31 from the stockyard 42 .

In the processing area 40, a large number of processing tanks 41 (plating processing tanks, pre-processing tanks, and post-processing tanks) are arranged in a row, for example, in a U shape. In FIG. 3, only the inlet and outlet portions of such a treatment tank group are shown. As mentioned above, the various mechanisms for mounting the jigs J onto the racks R are arranged near the entrances of such processing tank groups, and the racks R on which the jigs have been mounted are mounted on the rack support mechanism 31. They are soaked one after another in a treatment tank. In such a processing operation, the rack R is transported by a transport mechanism (not shown). The hook 7 shown in FIG. 1 is a part held by the transport mechanism during such a transport operation. Also, rack R
are immersed in various processing tanks 41 for predetermined periods of time, and during the immersion operation, the saddle 5 shown in FIG. 1 is seated on a suitable support of the processing tank 41.

When the series of processing is completed and the rack R is sent out from the processing tank group, the jig J is then taken out from the rack R and stored in the tray T again, and the empty rack R is transferred to the stockyard 42.
be returned to. In order to perform such work, mechanisms similar to the various mechanisms used for mounting the jig described above are provided near the outlet of the processing tank group.

That is, near the outlet of the processing tank group, a pair of rack support mechanisms 61 similar to the rack support mechanism 31 are provided at a distance in the lateral direction. Each rack support mechanism 61 is provided with an index mechanism for intermittently rotating the rack R. At the rear of the rack support mechanism 61 in the vertical direction (in the direction of arrow C), there are two
A separate jig removal mechanism 60 is provided. Jig removal mechanism 60
A downstream portion of the tray feeding mechanism 32 is located on the opposite side of the rack support mechanism 61, and a tray rotating mechanism 55 similar to the tray rotating mechanism 25 is located downstream of the tray feeding mechanism 32.
and a tray holder 51 similar to the tray holder 21 are provided, and a tray transfer mechanism 50 similar to the tray transfer mechanism 20 is connected to the side of the tray holder 51. Further, a tray stacking mechanism 52 similar to the tray distributing mechanism 22 is provided between the tray transport mechanism 50 and the tray holder 51. Each of these parts operates in the opposite manner to the workpiece mounting operation described above.

That is, the rack support mechanism 61 intermittently rotates the rack R, and the tray feeding mechanism 32 intermittently moves the two empty trays T in a vertical position.

In parallel with these operations, the jig removal mechanism 60 takes out the jig J from the rack R on the rack support mechanism 61 and mounts it on the tray T. When the attachment of the jig J to the tray T is completed, the tray rotation mechanism 55 rotates and the tray T is placed in the upright position.
horizontally on the tray holder 51, and
moves the tray T to the work area of the tray stacking mechanism 52. The tray stacking mechanism 52 stacks a predetermined number of trays T on the tray transport mechanism 50, and the tray transport mechanism 50 transports such a group of trays to the next stroke. Further, the empty rack R on the rack support mechanism 61 is returned to the stockyard 42 by the rack return mechanism 63.

In the above-mentioned operation, the number of trays T ejected from the jig mounting mechanism 30 side may be temporarily larger than the number of trays T accepted by the jig removal mechanism 60 side. A tray storage mechanism 65 for temporarily storing the tray T is provided in the middle of the feeding mechanism 32.

Next, the structure of the jig mounting mechanism 30 and the like will be explained in more detail.

4 is an enlarged partial view of FIG. 3, and FIG. 5 is a schematic view taken along the line v--■ in FIG. 4. In FIG. 5, the jig mounting mechanism 30 includes a movable frame 70. As shown in FIG. Movable frame 7
0 is supported by a suitable support structure on the base frame and rotated by a drive mechanism 71 about a vertical central axis 72 in 180' increments.

As shown in FIGS. 4 and 5, the central axis 72 is connected to the movable frame 7.
It is located at the horizontal center of 0. A pair of air cylinders 73 or 74 are fixed to both sides of the movable frame 70, and a guide rod 75 is movably supported.

These cylinders 73, 74 and guide rods 75 extend in the longitudinal direction (in the direction of arrow B or vice versa). As shown in FIG. 5, the rod 76 of one cylinder 74 projects forward in the vertical direction (B), and a vertical rod-shaped movable member 77 is fixed to the projecting end. As shown in FIG. 5, a vertical cylinder 80 is fixed to the upper end of the movable member 77, and a vertical rod-shaped elevating member 81 is supported on the movable member 77 so as to be movable in the vertical direction. A rod 82 of the cylinder 80 is connected to an elevating member 81 via a bracket.

A jig holding section 83 (workpiece operation section 83) is fixed to the upper and lower ends of the elevating member 81 via a bracket. The jig holding portion 83 includes a main body incorporating an air cylinder, and a pair of fingers 85 (FIG. 4) projecting vertically forward from the main body. The pair of fingers 85 are driven by an air cylinder in the main body of the jig holding section 83 and can be opened and closed in the lateral direction (in the direction of arrow A in FIG. 4 and the opposite direction), and hold the jig J between them. It is now possible to do so.

The other cylinder 74 in FIG. 4 has a rod 76 that projects rearward in the longitudinal direction, and a movable member 77 similar to the movable member 77 described above is fixed to the projecting end as shown in FIG. The movable member 77 connected to the cylinder 74 has the same mechanisms or members attached to each part from the cylinder 80 to the finger 85 in the same positional relationship. That is, each cylinder 80, jig holding part 83, and finger 85 form a workpiece operation mechanism for holding and operating a jig, and each movable frame 70 has two such workpiece operation mechanisms. are provided in a substantially symmetrical positional relationship with respect to the central axis 72.

In FIG. 5, the tray T that has been erected as described above is positioned with its opening surface facing the jig mounting mechanism 30 side. In this standing position, the bottom wall 90 of the tray T
A rod-shaped and comb-shaped holding member 91 (FIG. 4) extending in the horizontal direction is provided on the inner surface of the upper end.
The upper end of jig J is inserted into the groove. Further, a bottle 92 is provided at the upper end of the jig J and projects horizontally in parallel with the bottom wall 90, and a notch into which the bottle 92 is inserted is provided at the upper edge of the holding member 91. A holding member 93 having a similar shape to the holding member 91 is also provided on the inner surface of the lower end of the bottom wall 90.
The lower end of the jig J is inserted into the groove of the holding member 93. Furthermore, a support member 96 is provided on the inner surface of the side wall 95 on the lower side of the bottom wall 90 in the vertical position, and the lower end of the jig J is inserted into a groove on the upper surface of the support member 96.

The jig mounting mechanism 30 described above takes out the jig J from the tray T and mounts it on the rack R as follows.

First, the rod 76 of the cylinder 73 (or 74) protrudes below the tray, and the fingers 85 grip the upper and lower ends of the jig J. Next, the cylinder 80 operates and the jig holding part 83
is slightly raised, so that the bottle 92 is held by the holding member 9.
It deviates from 1. Next, the cylinder 73 moves the jig holding part 83 and the like backward, and then the movable frame 70 is rotated by 180° about the central axis 72. As a result, the jig J taken out from the tray T moves radially outward of the rack R, and then the cylinder 73 projects the cylinder rod 76 and the jig J is installed between the clips 10 of the rack R. When the installation is completed, the finger 85 opens to release the jig J, and then the rod 76 retreats to release the finger 8.
5 etc. are returned to the movable frame 70 side.

In parallel with this operation of mounting the jig onto the rack R by the cylinder 73, the other cylinder 74 takes out a new jig J from the tray T in the same manner as described above.

Such operations are repeated to complete a series of jig removal and installation operations.

In FIG. 4, the jig mounting area 9 of each jig mounting mechanism 30
The jig holding part 83 located at 8 is located at a position close to the other jig mounting mechanism 30 in the lateral direction, and the holding part 83 located at the jig removal area 99 is located at a position close to the other jig mounting mechanism 30 in the lateral direction. It is located at the farthest position in the direction.

By setting the relative positions of the cylinders 73, 74 and the center shaft 72 in this manner, the two racks R can be placed close to each other. Therefore, although each tray T has a relatively long horizontal length, jigs are taken out from two such trays T arranged horizontally and mounted on two racks R adjacent to each other. Is possible. Therefore, the processing tank 41 rack R can be transported while maintaining the positional relationship of the racks R on the two rack support mechanisms 31 shown in FIG. That is, in order to downsize the entire equipment, it is desirable to reduce the size of the processing tank 41, and for this purpose, it is necessary to place each two racks R close to each other and immerse them in the processing tank 41. . and,
According to the above structure, in the work of attaching the jig J to the rack R, the racks R can be placed close to each other, so that the two racks R can be transferred to the processing tank 41 while maintaining their positional relationship on the support mechanism 31. There is no need to provide a mechanism between the support mechanism 31 and the processing tank 41 to adjust the positional relationship between the two racks R. Therefore, the equipment can be made smaller and simpler.

[Effects of the Invention] As explained above, according to the present invention, the rod-shaped jig J on which the workpiece W is mounted is attached to the outer periphery of the roughly cylindrical rack R, so that the workpiece W is attached to the rack R with a density This can improve the efficiency of the entire processing operation. Further, according to the present invention, in an apparatus using such a rack R, there is an advantage that the workpiece W can be handled easily and automatically.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of a rack according to an embodiment of the present invention, Fig. 2 is a schematic enlarged cross-section of Enlarged schematic diagram, No. 5
The figure is a view taken along the ■-■ arrow in FIG. 1.2... Annular member, 3... Connecting member, 10...
Clip, 20... Tray transfer mechanism, 25... Tray rotation mechanism, 30... Jig mounting mechanism, 31... Rack support mechanism, 60... Jig removal mechanism, 70... Movable frame, 83...Jig holding part (workpiece operation part), J
...Jig, R...Rack, T...Tray, W...
・Work diagram 5

Claims (1)

[Scope of Claims] 1. A pair of annular members located vertically apart from each other, a connecting member connecting both annular members, and a connecting member fixed to each annular member and protruding radially outward in the radial direction thereof. a plurality of clips, each clip having elasticity in the circumferential direction of the annular member, and between each pair of clips adjacent in the circumferential direction;
A rack for a plating processing apparatus, characterized in that the end of a vertically extending rod-shaped jig can be inserted and held from the outside in a radial direction. 2. A large number of bar-shaped jigs are held on the radially outer side of a roughly cylindrical rack at intervals in the circumferential direction in a vertically extending posture, and a plurality of workpieces are mounted on each jig in a vertically arranged manner. There is a tray that accommodates multiple jigs with workpieces mounted on them so that they are lined up on the same plane before they are mounted on the rack, and a tray that transports the jigs in a horizontal position. A tray transfer mechanism, a tray rotation mechanism that rotates the tray from a horizontal position to a vertical position, a rack support mechanism that supports a rack near the tray rotation mechanism, and a jig removal mechanism from a tray in a vertical position. and a rack indexing mechanism that rotates the rack support mechanism intermittently to change the circumferential position of the rack that receives the jig. A workpiece holding device for a plating processing apparatus characterized by the following. 3. A large number of clips are provided at the top and bottom of the roughly cylindrical rack, protruding outward in the radial direction, so that a rod-shaped jig with a workpiece attached can be detachably fixed in the gap between the clips. A workpiece of a plating processing apparatus, comprising: a jig mounting mechanism for holding a jig and mounting it between the clips; and a jig take-out mechanism for taking out the jig from between the clips. Attachment and detachment device. 4. A large number of rod-shaped jigs are held on the radially outer side of a roughly cylindrical rack at intervals in the circumferential direction in a vertically extending posture, and a plurality of workpieces are mounted on each jig in a vertically arranged manner. There is a tray that accommodates multiple jigs with workpieces mounted on them, lined up on the same plane before they are mounted on the rack, and a tray that stores two trays from a horizontal position to a common vertical position. A tray rotation mechanism that rotates the trays to a vertical position where they are lined up on a plane, a rack support mechanism that supports two racks spaced apart in a horizontal direction parallel to the vertical plane, and each tray in a vertical position. and a jig mounting mechanism located between each of the racks on the rack support mechanism opposite thereto, and each jig mounting mechanism includes a movable frame that rotates around a vertical axis and a movable frame that rotates in half. It is equipped with a drive mechanism that rotates one rotation at a time, and two workpiece operation units that take out jigs from the tray and attach them to the rack, and both workpiece operation units are located on opposite sides of the movable frame. The drive mechanism rotates the movable frame, so that each workpiece operation section moves between the position where the jig is taken out and the position where the jig is attached. The workpiece operation section is positioned so that the workpiece operation section at the position for taking out occupies a position away from the other movable frame, and the workpiece operation section at the above-mentioned attachment position occupies a position close to the other movable frame. A workpiece holding device for a plating processing device characterized by the following settings.