JPH03247798A - Work attaching and detaching device for plating frame in plating device - Google Patents

Abstract

PURPOSE:To automate the attaching and detaching operations of a work to and from a plating frame by providing reference positioning pieces, reference positioning clamp devices, etc., which clamp these pieces to reference positions and executing the centering, bolting, etc., of the plating frame. CONSTITUTION:The work (a) is carried by a conveyor 16 to forks 18, 19 and is supplied by the work clamp device B to the next plating frame A fixing device C. This device B supplies and receives the work (a) to and from the work mounting position of the plating frame A. The reference positioning pieces 50 are provided on the plating frame A in the above-mentioned device C and the reference positioning clamp device (d) to clamp these pieces to the reference positions is provided. After the frame A is set in the reference position, the work (a) is fixed by an automatic tightening device. The above-mentioned clamp device (d) is formed of rocket pins to be fitted into the pin holes 50a and receiving bodies 61 to clamp the reference positioning pieces 50 together with these pins.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a workpiece attachment/detachment device for a plating frame in a plating apparatus.

(Conventional techniques/techniques).

Conventionally, when plating, for example, copper plating a laminated board, the plating frame, which is a fixture for fixing the workpiece, was suspended from a cathode bar using its rack, and a titanium cage containing copper balls was further suspended from the anode bar. These are then immersed in a plating solution made of copper sulfate to deposit copper onto the laminated substrate.

Then, the plating frame is moved along the rail from one side of the plating tank so that the plating work can be performed.

(Problems to be Solved by the Invention) In the above-described plating work, the work of attaching the workpiece to the plating frame and the work of suspending the plating frame from the cathode bar are performed exclusively by hand.

This is because labor costs are low, so there is no profit for manufacturers even if they develop detachable robots, and plating equipment is not designed to be unmanned.

In plating factories, it is unpopular in these days of labor shortages to have people attaching and detaching workpieces while keeping up with plating takt times in a harsh environment where the plating solution evaporates and is filled with harmful gases. The current situation is that we are having a very difficult time recruiting staff.

Therefore, the inventors believe that if the workpiece has a certain size,
He realized that it could be unmanned and completed this device.

That is, an object of the present invention is to provide a workpiece attachment/detachment device for a plating frame in a plating apparatus that can automatically attach and detach a workpiece to and from plating.

(Means for Solving the Problems) In order to achieve the above-mentioned objects, the present invention provides the following workpiece attachment/detachment device for a plating frame.

That is, a reference positioning piece is provided on the plating frame, a reference positioning clamp device is provided for clamping the reference positioning piece at a reference position, and an automatic tightening device is provided for fixing or releasing the workpiece after it is set at the reference position. It is famous for its unique workpiece attachment/detachment device for plating equipment, which is equipped with a workpiece clamping device that supplies the workpiece to the workpiece attachment device of the plating frame or receives the workpiece from the workpiece attachment position of the plating frame. The reference positioning clamp device consists of a rocket pin that fits into the pin hole of the reference positioning piece, a receiver that clamps the reference positioning piece together with the rocket pin, and a drive device that moves this towards the plating frame. This is a workpiece attachment/detachment device for a plating frame in a plating apparatus provided therein.

Further, the automatic tightening device is a device for attaching and detaching a workpiece to a plating frame in a plating apparatus, which is composed of a tightening plate for the workpiece and a tightening bolt linearly moved by a robot for fixing the workpiece to the plating frame.

Furthermore, in order to accurately set the reference positioning piece, a plating frame lifting device is installed to lift the plating frame rack from the cathode bar, and it supplies the workpiece to the workpiece mounting position of the plating frame, or the plating frame rack is equipped with a plating frame lifting device that lifts the plating frame rack from the cathode bar. A work clamp device for receiving a workpiece from a position is constructed by a rotary plate provided on a horizontally movable base of an elevating plate, which can be changed from a horizontal position to a vertical direction, and a fork device is provided on the rotary plate.

(Function) The plating frame suspended from the cathode bar is slightly raised by the lifting device, and the reference positioning piece of the plating frame is positioned by the rocket pin and the receiver by the reference positioning clamp device. A workpiece is supplied to the positioned plating frame from a conveyor belt using a fork, and the workpiece is positioned and fixed to the plating frame by a tightening device that can be opened and closed.

When the workpiece is positioned and fixed on the plating frame, the fork leaves the workpiece and returns to the conveyor belt side, and the plating frame lifting device also descends.

The above operation is the operation of feeding the workpiece to the plating frame,
When removing the workpiece from the plating frame, the above operations are performed in reverse to remove the workpiece.

According to the above-mentioned equipment, the only human work required is to stack the workpieces before plating and to collect the products after plating, and the plating takt time increases due to the poor work environment. be freed from being exposed.

(Example) The embodiments shown in the drawings will be described below.

The plating frame (A) in the plating tank is a fixture for fixing the workpiece, and is suspended from the rail-shaped cathode bar (1) as shown in Fig. 16.17. A pair of left and right frames (3) integrally molded with the rack (2) (
3a), connecting plates (4) and (5) frame body (3) (3a)
) are combined.

The plating frame (A) is placed in the plating tank (6) along the cathode bar (1).
), but between it and a titanium cage (9) containing, for example, copper balls (8) suspended on an anode bar (7), a plating frame is passed through a plating solution (10) of, for example, copper sulfate. Copper is deposited on the workpiece (a) fixed to (A).

(11) shown in FIG. 16 is a rectifier.

Furthermore, in order to perform plating work continuously using a plurality of plating frames (A) as described above, a rail-shaped cathode bar ( 1)
This is done by suspending the plating frame (A) from the hanger (14) of the autonomous vehicle (13) on the rail (12) while moving inside the plating tank (6). Move intermittently at regular intervals.

The present invention provides a plating frame (
This invention relates to a workpiece loading/unloading device that supplies a workpiece (a) to a plating frame (A) or receives a workpiece (a) from a plating frame (A).

Figure 10.11 shows the position (X) for supplying the workpiece (a) to the plating frame (A), and Figure 12 shows the position 1tfj (Y) for receiving the workpiece from the plating frame (A). , the workpiece loading/unloading device according to the present invention is used at each position. The one shown is one in which a workpiece attachment/detachment device is used before and after the plating tank (6), but the rail (1) is an endless type, and the position where the workpieces are fed to the same side of the plating tank and the workpiece A workpiece loading/unloading device may be provided at each position.

The work attachment/detachment device for the plating frame (A) according to the present invention includes a work supply or receiving device (B) and a plating frame fixing device (C).
The workpiece supplying or receiving device (B) is composed of a fork device that supplies or receives the workpiece (a), and the plating frame fixing device (C) is configured to hold the workpiece (a) at a reference position of the plating frame (A). It consists of a tightening device (b) for fixing the plating frame, a reference positioning clamp device (d) for setting the reference position of the plating frame, and a plating frame lifting device (e).

Therefore, to explain from the workpiece supply device at the workpiece supply position, in Fig. 1, the workpieces (a) are stacked on an automatic lifting table (1), and the workpieces (a) are moved by a pick-and-place robot (not shown) using three belts. The pieces are transferred one by one from the elevating table onto the container (16).

Width aligners (1
7) A pair of (17) are provided on the left and right to ensure that the fork is correctly fed to the next fork device.

Therefore, there is a fork device at the end of the three-held conveyor (16).

The fork device is a belt conveyor (as shown in Figure 2.3.4).
16) An upper fork (18) and a lower fork (19) sandwich the upper workpiece (a) between the belt at its end from above and below.
), and the lower fork (19) ascends between the belt conveyors (16).

The upper fork (18) and lower fork (19) can be opened and closed to clamp the workpiece (a).

Its opening/closing structure consists of a pair of left and right rack rods (2
1) and (22) are provided with forks (18) and (19), and binions (
23) to move forward and backward.

Further, the slide guide rod (28a,) of the fork 0-k (18) is attached to the rack rod (21) of the fork (19) so as to be freely slidable, and the rack rod (22) of the fork (18)
) is slidably attached to the slide guide rod (28) of the fork (19), and the rack rod (22) and slide guide rod (28a) of the fork (18) are located in the lower notched hole of the fork (19). It is now possible to enter and exit.

Although the illustrated forks (1g) and (19) move in parallel, they may have any structure that clamps the workpiece (a) by rotating movement.

The spindle (24) of the arm of the rotary plate (20) is mounted on the bearing (26) (26) of the horizontal movement base (25), so that the rotary plate (20) can rotate 90'. ing.

The structure for rotating the rotary plate (20) by 90' is such that the rotary plate (20) is rotated 90' with respect to the piston rond (30) of the cylinder (29) which is pivotally supported by the bracket (27) (27) of the horizontally movable base (25). The arm (31) shown in FIG. 2, which is fixed to the shaft (24) of 20), is pivoted (32).

■ Therefore, in the cylinder (29), the piston rond (3
0) can be moved up and down, the rotating plate (20) becomes the support shaft (24).
It will rotate around the fork (18)
(19) rotates in the horizontal and vertical directions, so that the workpiece (a) can be clamped at the horizontal position and the orientation of the workpiece (a) can be changed in the vertical direction.

Next, a horizontally movable pedestal (2
5) is installed on the elevator platform (33) and
) of the cylinder (34) fixed on the piston rond (35
) to allow horizontal movement along guide rails (36) (37').

In addition, the elevator plate (33) is connected to the screw rod (3) of the screw drive device (38).
9) (39) (39) Go up and down with (39”).

The work supply device (B) is composed of the work device, the horizontally movable pedestal, and the lifting plate.

The workpiece (a) is clamped from the belt conveyor (16) by the workpiece supply device (B) as described above and changed to a vertical position, and then transferred to the next plating frame fixing device by the lifting plate (33) and horizontally moving base (25). (C).

The plating frame (A) in the plating frame fixing device (C) has No. 6.
As shown in Figure 7.8, a plurality of electrical contacts (40) are protruded from the frame (3) (3a), and a clamping device that can be opened and closed is used to bring the workpiece (a) into contact with and fix it. (b
).

This tightening device (b) consists of a tightening plate (41) and a tightening plate that tightens it to the frame (3) (3a).
42), and the tightening plate (41) has a locking pin (43), which is attached to the frame (3) (3a
) into the pin hole (44) and tighten the tightening bolt (42).
) is inserted through the hole (45) of the tightening plate (41) and the frame body (
3) It is screwed into the screw hole (46) of (3a), and a spring (47) is inserted between the tightening bolt (42) between the tightening plate (41) and the frame (3) (3a). The tightening bolt (42) is rotated by a screw tightening robot (48) against the spring (47).

Therefore, both sides of the workpiece (a) clamped by the fork (1B) (19) are tightened by the lifting plate (33). (and then horizontally moving pedestal (25
) moves forward slightly, brings the workpiece (a) into contact with the electrical contact (40), and stops.

Then, the tightening plate (41) that was separated from the frame body (3) (3a) is tightened by the spring (47) (42
) to move toward the frame (3) (3a) and remove the workpiece (a).
Fix both sides of.

When fixing the work as described above, tighten the tightening bolts (
42), the present invention uses a screw tightening robot (48). By the way, in order to tighten bolts with a screw tightening robot, the mounting position of the plating frame that fixes the workpiece needs to be aligned with the center of the chuck of the screw tightening robot.

The plating frame (A) has poor precision in machine dimensions for boat fishing, and the cathode bar has been damaged by electrical corrosion, so the center of the plating frame (4B) and the center of the plating frame (A) and workpiece (a) First, in order to match the rack (2) of the plating frame (A) with the cathode bar (1), use the cylinder (49) which is the plating frame holder 4 lifting device II (e) shown in FIGS. 1 and 10. The plating frame (A) is raised to such an extent that it does not come off, and positioning is performed using a reference positioning clamp device (d) to be described later.

Therefore, the reference positioning piece (50) is attached to the frame (3) (3a).
There are four locations above and below.

In addition, in the above-mentioned plating frame lifting device (e), a wedge advances instead of a cylinder to lift the connecting plate (4) of the plating frame (A).
).

The reference positioning clamp device (d) includes a support plate (54) (54) that can be moved left and right by threaded rods (52) (53) with different left and right screw directions relative to the support base (51) shown in Fig. 6.9.
), and since there are four reference positioning pieces (50), support plates (54) (54) are provided in pairs on the top, bottom, left and right.

The support plate (54) (54) has a cylinder (55) (5
6) are arranged in parallel, and a mounting plate (59) for a rocket pin (60) is attached to the tip of the piston rod (57) of the cylinder (55).
), and the piston rod (58) of the cylinder (56)
) At the tip, there is a receiver (6) that corresponds to the rocket pin (60).
There is 1).

The rocket pin (60) is inserted into the pin hole (50a) of the reference positioning piece (50), and is inserted into the pin hole (6) of the receiving plate (61).
1a).

The left and right support plates (54) (54) are screw rods (52) (5
3), the robots move in opposite directions and stop at a preset position. Also, the abutment (51) is the first.
As shown in Figure 2 (attached to the frame (62),
62) is moved back and forth by the threaded rod (63) of the machine base (64) and stops at a preset position.

Therefore, the support plate (54) (54) is the rocket bin (6
0) and the receiver (61) can move the reference positioning piece (50) to a position where it can be clamped.

Therefore, when the plating frame (A) is lifted by the cylinder (49) of the lifting device (e) shown in Fig. 1.2, the abutment (
The reference positioning clamp device (d) pinches the reference positioning piece (50) from the front and back due to the forward movement of the base plate (51), the left and right movement of the support plates (54) and the operation of the cylinders (55) and (56), and the rocket pin (60) ) is inserted into the reference hole (50a) of the reference positioning piece (50) and clamps the reference positioning piece (50) together with the receiver (61).

Then, the plating frame (A) is centered by the taper of the rocket bin (60), and its height and lateral position are determined.

Note that the clamp device (d) may be of the type shown in the figure, but may be configured such that it can freely approach the reference positioning piece using an external rotating arm.

When the reference positioning clamp device (d) operates as described above to clamp the reference positioning piece (50) of the plating frame (A) and perform centering, the screw tightening robot (48)
works, the tightening bolt (42) is screwed in, and the workpiece (a) is tightened and fixed to the frame (3) (3a) by the tightening plate (41).

The connecting plate (5) of the plating frame (A) shown in Figure 7.8 is U-shaped so that the forks (18) and (19) can be raised.

Since the present invention is configured as described above, the workpiece is fed on the belt conveyor (16) while its posture is corrected by the width aligners (17) (17), and then the fork (18) which is in a horizontal posture ) (19) When the workpiece is inserted into the inside and the sensor confirms this, the upper and lower forks (1B) (
19) is closed to clamp the workpiece (a).

Next, due to the operation of the cylinder (29), the rotary plate (20) moves to 90
° Rotate. The forks (18) (19) whose direction has been changed by 90° on the rotating plate (20) are raised on the lifting plate (33) while clamping the workpiece (a). Raised fork (
1B) (19) rises to the position corresponding to the tightening device (b), but at that time the plating frame (A) has already been lifted by the cylinder (49) and the reference positioning piece (
50) is positioned by the clamp device (d), the workpiece (a) is brought into contact with the electrical contact (40) of the plating frame (A) by a slight movement of the horizontal movement base (25), and then the screw is tightened. The robot (48) operates and tightens 8. The tightening plate (41) is tightened with the fixing bolt (42) to the workpiece (a).
) to be fixed.

When the workpiece (a) is fixed, the reference positioning clamp device (d) is separated from the reference positioning piece (50), and then the forks (18) and (19) are opened and lowered by the elevator plate (33), and the workpiece ( a) and retreat from the plating frame (A) with the horizontal movement pedestal (25).

Finally, the plating frame (A) is lowered by the operation of the cylinder (49).

The fork that has retreated is rotated by 90 degrees in the cylinder (29) and moves to a standby position on the belt conveyor (16).

The above is the order of attaching the workpiece (9) to the plating frame (A), but when removing the product from the plating frame (A), the above order is reversed.

That is, the plating frame (A) is lifted by the cylinder (49), and the reference positioning clamp device (d) works to clamp the reference positioning piece (50) for centering, and then the screw tightening robot (48) Working and tightening pol)
(42) is loosened, and the workpiece (a) is released from the clamping plate (41).

At that time, the forks (18) and (19) are already open and waiting, so the workpiece (a) is attached to the fork (18).
(19), and when the workpiece (a) is clamped, the reference positioning clamp device (d) separates from the reference positioning piece (50), thus fork (18) (1
9) is moved slightly backward by the horizontally moving pedestal (25) and the workpiece (
a) from the electrical contact (40), and then remove the elevator plate (33).
), the cylinder (29) rotates 90 degrees, and after transferring the workpiece to a receiving device such as a belt conveyor, the clamp of the workpiece is released. Finally, the plating frame (A) is also lowered by the cylinder (49).

Since the plating frame workpiece attachment/detachment device in the plating apparatus of the present invention is constructed as described above, it is applicable not only to plating laminated substrates but also to film-like soft sheets such as flexible printed circuit boards.

In addition, the plating frame is composed of connecting plates that can expand and contract from side to side so that it can be used to fix workpieces of various sizes.

If the size of the frame changes, the clamp position of the reference positioning clamp device will be changed accordingly, but this is done by using the screw rod (5
2) The amount of rotation of (53) and the amount of movement of the abutment (51) are changed, and the chuck position of the screw tightening robot is also changed.

All operations of the device of the present invention are controlled by an automatic control device.

In any case, the design may be modified as desired within the spirit of the present invention.

(Effects of the Invention) According to the present invention, it is possible to automatically attach and detach the work to the plating frame, so there is no need to work close to the plating tact in places with poor working environments such as plating factories. Moreover, it has the characteristic of being able to alleviate labor shortages.

According to claims (1), (2), and (3), the centering of the plating metal frame is automatically performed from the reference positioning piece and the rocket pin of the reference positioning clamp device that clamps the piece at the reference position. As a result, the center of the screw tightening robot matches the mounting reference position of the plating frame, and therefore the screw tightening robot can automatically tighten the bolts and automatically fix the workpiece to the plating frame. .

Furthermore, according to claim (4), even if the precision of the plating frame is inaccurate and the cathode bar is corroded, centering for the screw tightening robot can be performed accurately, and the center of the workpiece and the center of the plating frame can be accurately aligned. can be made to match.

Furthermore, according to claim (5), there is a feature that supplying and receiving workpieces to and from the plating frame can be carried out smoothly.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the entire device of the present invention Fig. 2 is a side view of the same as above Fig. 3.4 is a perspective view of the fork portion Fig. 5 is an enlarged perspective view of the workpiece fixing device portion Fig. 6 is a plan view of the same as above Fig. 7 The figure is a cross-sectional view of the same as above. 2. Figure 8 is an exploded slope view of the same as above. 9th is a plan view of the entire workpiece fixing device. Plan view Fig. 12 is an explanatory drawing showing the moving state of the plating frame Fig. 13.14
．． Figure 15 is an enlarged front view, side view, and plan view of the same as above. Figures 16 and 17 are explanatory diagrams showing the principle of plating. A...Plating frame B...Work supply or receiving device C...
・・Plating frame fixing device a・・・・・・・・Workpiece b・・・Tightening device d・・・Standard positioning clamp device e・・・・
・Plating frame lifting device (18) (19) ...Fork (25)...
...Horizontal movement pedestal (33) ... Elevation plate (41) ... Work clamping plate 3 (42) (48) (49) (50) (60) (61) - Tightening bolt・Screw tightening robot・Plating frame lifting machine・Reference positioning piece・Rocket pin・Receiver under 4 JP-A-3 247798 (8) JP-A-3 247798 (10) 6 Fig. 5゜Knee 60'-59 Fig. A "-""-ko"°i4° JP-A-3 247798 (14) Q' JP-A-3 2-ia-798 (16) JP-A-3 247798 (17) M'j 14 Figure JP-A-247798 (18) 膓°中

Claims (5)

[Claims] (1) A reference positioning piece is provided on the plating frame, and a reference positioning clamp device is provided that clamps the reference positioning piece at the reference position, and after the plating frame is set at the reference position by the reference positioning clamp device, the workpiece is fixed or fixed. A work attachment/detachment device for a plating frame in a plating apparatus, which is provided with an automatic tightening device for releasing the plating frame, and a work clamp device for supplying a work to a work attachment position of the plating frame or receiving a work from the work attachment position of the plating frame. (2) The reference positioning clamp device consists of a rocket pin that fits into the pin hole of the reference positioning piece, and a receiver that clamps the reference positioning piece together with the rocket pin, and a drive device that moves this towards the plating frame. A workpiece attachment/detachment device for a plating frame in a plating apparatus according to claim (1). (3) The plating frame in the plating apparatus according to claims (1) and (2), wherein the automatic tightening device comprises a workpiece clamping plate and a tightening bolt operated by a robot for freely fixing the workpiece to the plating frame. workpiece attachment/detachment device. (4) The plating apparatus according to claims (1), (2), and (3), further comprising a plating frame lifting device for lifting the plating frame rack from the cursor bar in order to accurately set the reference positioning piece. Workpiece attachment/detachment device for plating frames. (5) The work clamp device, which supplies the work to the work mounting position of the plating frame or receives the work from the work mounting position of the plating frame, is a rotating mechanism that can be changed from the horizontal position to the vertical direction provided on the horizontal movement base of the lifting platform. 5. A workpiece attachment/detachment device for a plating frame in a plating apparatus according to claim 1, wherein the moving plate is provided with a fork device.