JPH0211679B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pallet for transporting a workpiece in a plating processing apparatus that plating a workpiece while spraying a plating liquid from a spray nozzle.

(Prior art and its problems) (1) In the conventional plating processing apparatus, a plurality of workpieces are placed on the top plate 45 above the direct injection nozzle, and each workpiece is individually placed on the top plate 45 even after the plating processing is completed. It is configured to be taken out from. Therefore, there is a problem in terms of the efficiency of workpiece supply and removal operations.

(2) When plating workpieces of different types and shapes, a top plate is required for each shape, which is a heavy economic burden, and also requires a significant amount of setup work and man-hours.

(3) If the workpiece is fitted onto the top plate and transported together with the top plate to the next process, the amount of tapping liquid that adheres to the top plate taken out becomes significantly large.

(Object of the Invention) An object of the present invention is to enable a plurality of workpieces to be easily supplied or taken out at the same time, and to perform plating work on a common pallet for workpieces of various sizes. The purpose is to reduce the amount of liquid carried out.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a pallet for transporting plating liquid works in which the plating liquid is sprayed from the bottom of the top plate on which the pallet for transporting the workpieces is placed. In the above, the workpiece transport pallet is provided with a transport receiving part and a top support hole having a top support part, and the top support hole has a workpiece support part corresponding to the external dimensions of the workpiece and a top support hole connected to the workpiece support part. A top having a plated hole through which the accumulating liquid can pass is fitted, and the top is replaceably fitted to a workpiece conveying pallet.

(Example) Fig. 1 shows a plan view of a pallet for transporting workpieces according to the present invention. In Fig. 1, assuming that the workpiece transporting direction is the front side, the pallet P consists of a pair of front and rear frames that are long in the left-right direction. 11, and a body plate 12 fixed to the frame 11 via a connecting member 13, and a top support hole 15 is formed in the plate 12. A pair of long rectangular transport receiving parts 17 are fixed to the left and right ends of the frame 11 on the left and right sides, on which a transport beam 51 (to be described later) is supported. A pair of long sleds 20 are fixed to the left and right portions. Conveyance receiving part 17 and sled 20
A pin hole 22 for positioning is formed in the center of each.

In Fig. 2 showing the side view of the arrow in Fig. 1,
The plate 12 is located below the frame 11 with an interval therebetween, and a top support portion (stepped portion) 15a is formed at the inner peripheral edge of each top support hole 15, respectively. The lower surface of the sled 20 is a concave sled surface 20a
is formed, and a loading roller 52 and a chain roller 72, which will be described later, come into contact with the roller.

FIG. 3 is a cross-sectional view of the plating processing part of the plating apparatus of the present invention, in which the plate portion 12 of the pallet P for transport is placed on the top plate 45, and the plate portion 12 of the pallet P for transporting the workpieces is placed on top of the top plate 45. A top support hole 15 having a top support portion 15a is formed in the top support hole 15, and various square tops 25, 25' as shown in FIGS. 4 and 5 are exchangeably inserted into this top support hole 15. There is.

The tops 25, 25' are formed with a plating hole 26 corresponding to the external dimensions of the workpiece, through which the plating liquid sprayed from a nozzle 46 having a workpiece support part 26a and an electrode part passes. The top plate 45 is fitted through the packing G2 and
It will be placed through the packing G1.

Figures 4 and 5 show square-shaped pieces 25 and 25' corresponding to various workpiece sizes. That is, piece 25 in Figure 4 has a size that fits a workpiece W having external dimensions WA. Work support part 26
On the other hand, a workpiece support portion 26'a is formed in the top 25' in FIG. 5, and the workpiece support portion 26'a is sized to fit a workpiece W' having an outer dimension WB.

FIG. 6 shows a schematic vertical cross-sectional view of a plating processing apparatus using the workpiece conveying pallet of the present invention.
In FIG. 6, assuming that the workpiece supply side is the rear part and the workpiece conveyance direction is the front side, the loading part 2 is arranged behind the plating processing part 1, and the washing part 3 and the washing part 3 are arranged in the front part of the plating processing part 1. Water immersion parts 4 are arranged one after another. A pallet conveying device 8 is provided between the rear end of the loading section 2 and the rear end of the washing section 3, and a pallet conveying device 8 is provided between the rear end of the washing section 3 and the front end of the dipping section 4. A conveyor device 10 for conveying pallets is arranged.

The loading section 2 includes a pair of left and right loading rollers 52. The washing section 3 is equipped with washing cases 61 in three rows in front and back, and has a pallet passage 66.
Water injection nozzles 63 are arranged above and below the passage 66, respectively, and are configured to spray water toward the passage 66. A receiving tray 64 and a recovery tank 65 are arranged below the case 61.

A shallow pool 67 is arranged in the water immersion section 4, and water is poured into the pool 67. Furthermore, an unloading section 81 is provided at the rear end of the conveyor device 10.
is located.

As shown in FIG. 8, the plating processing section 1 includes a mounting frame 30 and a base plate 31, and a cell block 32 for spray plating is provided on the base plate. Each cell has a built-in plating liquid spray nozzle 46 corresponding to each piece support hole 15 of the pallet P.
Stays 3 projecting upward are provided on both the left and right sides of the base plate 31.
5 are arranged, and upwardly projecting positioning pins 36 are provided on the upper end surface of each stay 35, respectively. The left and right distances between the stays 35 match the distances between the sleds 20 on the pallet P. cell block 3
An upper holder 37 equipped with a vertically movable cylinder 40 is arranged above 2, and holds the workpiece and supplies power.

The transport device 8 is equipped with a pair of left and right beam guides 50 and a pair of left and right transport beams 51. The transport beam 51 is It is designed to be able to perform a square motion as shown in FIG. That is, in FIG. 7, the transport beam 51 can repeat the steps of rising, moving forward, descending, and retreating (returning) starting from the position indicated by the solid line. S indicates a movement stroke in the front-back direction.

As shown in FIG. 8, the conveyance beam 51 protrudes further inward than the beam guide 50, and the upper surface of its inner peripheral end is connected to the receiving portions 17 for conveying both ends of the pallet P.
The conveyor pallet P can be lifted up.

Next, plating processing, water washing, etc. will be explained.

(1) When plating a workpiece W as shown in Fig. 4, select a piece 25 that matches the external dimension WA of the workpiece W, and attach it to each piece support hole 15 of the pallet P.
The tops 25 are placed on the support portions 15a of the tops 25, and the workpieces W (for example, integrated circuit boards) are placed on the workpiece support portions 26a of the tops 25, respectively.

Place the workpiece W with the plating side facing down.
It will be listed on 5.

In addition, when plating workpieces W' with different external dimensions WB as shown in Fig. 5, the workpieces
Select the top 25' that matches the external dimension WB of W', and insert the top support part 15 of each top support hole 15 of the pallet P.
A top 25' is placed on each piece 25', and a workpiece W' is placed on the work supporting portion 26a of each piece 25'.

(2) For example, the conveying pallet P on which the workpiece W shown in FIG.
It is placed on top of the . At this time, the sled 20 in FIG. 2 of the conveying pallet P is placed on the loading roller 52, and the conveying beam 51 is at the rear position and is lowered together with the beam guide 50.

(3) Both the beam guide 50 and the conveyance beam 51 rise, thereby lifting the conveyance pallet P of the loading section 2 from the loading roller 52 via the conveyance receiving section 17 (FIG. 2).

Subsequently, the conveyance beam 51 moves forward and conveys the conveyance pallet P into the plating processing section 1.
By descending, the conveying pallet P is placed on the stay 35 having the positioning pin 36 as shown in FIG. 8, and the conveying beam 51 returns to the rear.

The conveying pallet P is positioned in the front-back and left-right directions by positioning pins 36, and each workpiece W is positioned above the plating injection nozzle 46 as shown in FIG.

(4) When the pallet P has been set in the plating processing section 1, the upper holder 37 shown in FIG. 8 is lowered to hold down the workpiece and to supply power to the workpiece.

(5) The plating liquid is sprayed from the spray nozzle 46 toward the lower surface (plating surface) of the workpiece W, thereby applying gold plating to the plating surface. The injected plating liquid is returned to the plating tank 33 shown in FIG.

(6) When the plating process is finished, the upper holder 37 rises, and then the conveyance beam 51 rises, lifts the conveyance pallet P in the plating process section with its front half, moves forward, and transfers it to the conveyor device 10. The conveying pallet P is conveyed to the starting end and then lowered to the chain roller 72 of the conveyor device 10.
I'll put it on.

(7) The chain roller 72 supports the sled 20 of the conveying pallet P shown in FIG. 2, and conveys it forward. Then, it passes through the passage 66 of the washing section 3 shown in FIG. The water washing section 3 includes a shower section 61 and a lower circulation tank 65. Each uses a three-stage countercurrent shower cleaning method, and cleaning water is sprayed from a shower nozzle 63. By providing three-stage countercurrent shower cleaning, the cleaning effect in each tank is improved, and there is no need to pump undiluted solution to the next process. Therefore, the work can be washed with a small amount of water supply, and the water load on the waste water treatment device is extremely small, and the equipment cost is low.

(8) After passing through the washing section 3, the conveying pallet P is lowered by the intermediate roller section 77, immersed in the pool 67, and stored. That is, by immersing it in the pool 67, the plating surface is prevented from drying and oxidizing. The chain roller 72 slides or rolls with respect to the conveying pallets P being stored. The transport pallets P in the pool 67 are sequentially taken out from the unloading section 81.

(Another Embodiment) (1) Although the illustrated embodiment shows an example in which the present invention is applied to gold plating, it can be applied to various types of spray plating such as spray silver plating.

(2) Although only two types of tops are disclosed in the explanation of the figures, various types of tops having workpiece support portions corresponding to the dimensions of various workpieces can be used. However, their external dimensions are the same as those in FIGS. 4 and 5.

(Effects of the Invention) As explained above, the present invention has the following features: (1) It is a conveying pallet that can support a piece into which a plurality of works are fitted, and the pallet itself has a conveying receiving part 17 supported by a conveying device 8. Since the workpieces can be supplied to the plating processing section 1 and taken out at the same time, it is no longer necessary to place the workpieces one by one on the plating processing section 1 as in the past, and the workpiece supply and removal work is simplified. Improves efficiency.

(2) Forming the top support hole 15 in the body plate 12, and forming the top support part 15 in each top support hole 15.
a, and workpiece supporting pieces 25 and 25' having the same external shape and having workpiece supporting portions with dimensions corresponding to the external shapes of workpieces of various sizes are exchangeably placed on each supporting piece 15a. , the pallet P can be made common to workpieces of various sizes by simply changing the type of pieces.

In other words, since workpieces of various sizes can be plated using a common transporting pallet P, there is no need to manufacture and replace transporting pallets for each workpiece, and the manufacturing and management costs of transporting pallets can be saved. The efficiency of replacement work is also improved.

(3) As shown in Fig. 3, the top plate 45 and the pieces 25, 25' fitted on the conveying pallet P are placed via the packing G1, and the pieces 2
5 and 25', when the workpiece W is fitted through the packing G2, the plating liquid adheres only to the plating hole 26 of the pieces 25 and 25' and the surface of the workpiece.

Since the pieces 25 and 25' fitted with this work are transported on the transport pallet P, there is no need to transport the work directly fitted to the top plate, which has the plating liquid applied to the entire surface, together with the top plate. The amount of plating solution taken out can be significantly reduced, resulting in significant savings in plating solution loss and liquid management costs.

[Brief explanation of drawings]

Fig. 1 is a plan view of a conveying pallet according to the present invention, Fig. 2 is a side view taken in the direction of the arrow in Fig. 1, Fig. 3 is a sectional view of the plating processing section of the plating processing apparatus,
Figure 5 is a sectional view of pieces for various work sizes, Figure 6 is a schematic side view of the plating processing device, and Figure 7 is a schematic side view of the plating processing device.
The figure is a schematic side view showing the moving state of the conveyance device, and FIG. 8 is an enlarged cross-sectional view of FIG. 6. 8... Conveyance device, 12... Body plate, 1
5... Top support hole, 15a... Top support part, 17
...Transportation receiving part, 25, 25'... Work support piece, 26, 26'... Plated hole, 26a, 2
6a′...Work support part, 46...Plating liquid spray nozzle.

Claims (1)

[Scope of Claims] 1. In a pallet for conveying a plating liquid in which a plating liquid is sprayed from the bottom of a top plate on which a pallet for conveying a work is placed, the pallet for conveying a work is provided with a conveyance receiver. The top support hole has a workpiece support part corresponding to the outer dimensions of the workpiece and a plating hole through which a plating liquid can pass, which is connected to the workpiece support part. 1. A pallet for transporting a workpiece of a plating processing apparatus, characterized in that a top is fitted into the pallet for transporting a workpiece, and the top is fitted to the pallet for transporting a workpiece in a replaceable manner. 2. A plating processing apparatus for transporting a workpiece according to claim 1, wherein the top plate, the workpiece transporting pallet, and the top plate are kept airtight to such an extent that the injected plating liquid does not leak outside. Palette.