Lead frame double-sided electroplating device

Abstract

A double-sided electroplating device for a lead frame relates to the technical field of electroplating jigs, and is characterized in that a support frame is fixedly arranged on the lower surface of a top plate of a rack, a main clamping plate is rotatably arranged at the lower end of the support frame through a rotating shaft, a support shaft seat is fixedly arranged on the rack, and a rotating arm is rotatably arranged on the support shaft seat through a rotating shaft; the auxiliary clamping plate is fixedly arranged at the lower end of the rotating arm, the auxiliary clamping plate is arranged on the side of the main clamping plate, and the wiring terminal is fixedly arranged on the main clamping plate; according to different electroplating requirements of the inner surface and the outer surface of a workpiece, double-face clamping equipment is designed, so that the frame workpiece can be clamped for electroplating, the inner cavity wall of the workpiece can be sealed by clamping the workpiece, and the outer surface of the workpiece can be electroplated independently; and then the workpiece can be loosened, so that the inner wall of the workpiece is exposed for pipe electroplating, thereby being suitable for double-sided electroplating processing of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of electroplating fixture technology, specifically to a double-sided electroplating device for lead frame. Background Technology

[0002] Electroplating is a processing technology that uses ion replacement reactions to coat the surface of a workpiece with a coating different from the workpiece material. Electroplating enhances the workpiece's properties such as corrosion resistance, oxidation resistance, and wear resistance by coating the workpiece surface. During electroplating, different thicknesses or materials of coating are selected based on the degree of contact between different workpiece surfaces and external structures to achieve greater efficiency and economic benefits. A lead frame, whose main function is to guide and support the wires, is designed with a hollow structure to achieve lightweight design. During electroplating, the coating performance of the outer surface needs to be improved, while the inner surface coating only needs to consider aesthetics and oxidation resistance. This necessitates double-sided electroplating of both the outer and inner surfaces of this lead frame, requiring the design of corresponding electroplating fixtures. Utility Model Content

[0003] The purpose of this utility model is to address the defects and deficiencies of the existing technology by providing a double-sided electroplating device for lead frame. It is designed with a double-sided clamping device to meet the different electroplating requirements of the inner and outer surfaces of the workpiece. This device can clamp the workpiece for electroplating, thereby sealing the inner wall of the workpiece by clamping it, so as to achieve electroplating of the outer surface of the workpiece alone. Then, the workpiece can be released to expose the inner wall of the workpiece for tube electroplating, thus making it suitable for double-sided electroplating of workpieces.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] It includes racks, and it also includes:

[0006] A support frame, wherein the support frame is fixedly installed on the lower surface of the top plate of the machine frame;

[0007] The main clamping plate is spun onto the lower end of the support frame via a rotating shaft;

[0008] A support shaft seat, which is fixedly mounted on the machine frame;

[0009] A rotating arm, wherein the rotating arm is spun onto a support shaft seat via a rotating shaft;

[0010] A secondary clamping plate is fixedly installed at the lower end of the rotating arm and is located to the side of the main clamping plate.

[0011] The wiring terminal is fixedly mounted on the main clamping plate.

[0012] Preferably, a connecting arm is fixedly provided on the wall opposite to the wiring terminal on the main clamping plate, and a connecting rod is screwed onto the movable end of the connecting arm via a rotating shaft.

[0013] Preferably, the support frame is integrally formed with a guide rod, and a guide sleeve is movably sleeved on the guide rod. The end of the connecting rod away from the connecting arm is screwed onto the guide sleeve via a rotating shaft.

[0014] Preferably, a mounting shaft seat is fixedly provided on the frame, a drive shaft is spun on the mounting shaft seat via a main shaft, a rotating frame is fixedly provided on the drive shaft, a transmission arm is spun on one end of the rotating frame away from the drive shaft via a rotating shaft, and the other end of the transmission arm is spun on the guide sleeve via a rotating shaft.

[0015] Preferably, a support pin is fixedly installed on the end of the rotating frame away from the transmission arm, and a guide groove is opened on the rotating arm, with the support pin movably inserted into the guide groove.

[0016] Preferably, the same drive shaft is spun onto the frame via bearings, a worm gear is connected in series on the drive shaft, a worm wheel is fixedly mounted on the drive shaft, the worm and the worm wheel are meshed together, and a connecting seat is fixedly mounted at both ends of the drive shaft.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This device uses a support frame to set the main clamping plate, a support shaft seat and a rotating arm to set the secondary clamping plate, and a rotating frame to connect with the rotating arm via a support pin. The device is connected to the main clamping plate via a transmission arm, a connecting rod and a connecting arm. In other words, the opening and closing motion of the main clamping plate and the secondary clamping plate is controlled by the rotation of the rotating frame. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 yes Figure 1 The diagram on the right.

[0021] Figure 3 yes Figure 1 The rear view diagram.

[0022] Figure 4 This is a structural schematic diagram of the drive shaft and the rotating frame in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] Frame 1, support frame 2, main clamping plate 3, support shaft seat 4, rotating arm 5, secondary clamping plate 6, terminal block 7, connecting arm 8, connecting rod 9, guide rod 10, guide sleeve 11, mounting shaft seat 12, drive shaft 13, rotating frame 14, transmission arm 15, support pin 16, guide groove 17, transmission shaft 18, worm gear 19, worm wheel 20, connecting seat 21. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1-4 As shown, the specific implementation adopts the following technical solution:

[0027] It comprises a rack 1; characterized in that it further comprises:

[0028] Support frame 2, which is fixedly installed on the lower surface of the top plate of the frame 1;

[0029] The main clamping plate 3 is spun onto the lower end of the support frame 2 via a rotating shaft;

[0030] Terminal 7 is fixedly mounted on one side wall of the main clamping plate 3;

[0031] Guide rod 10, the guide rod 10 is integrally formed and mounted on support frame 2;

[0032] Guide sleeve 11, which is movably sleeved on guide rod 10;

[0033] Connecting arm 8, the connecting arm 8 is fixedly installed on the wall of the main clamping plate 3 on the side opposite to the wiring terminal 7;

[0034] Connecting rod 9, the connecting rod 9 is screwed onto connecting arm 8 via a rotating shaft, and the upper end of connecting rod 9 is screwed onto guide sleeve 11 via a rotating shaft;

[0035] Mounting shaft seat 12, which is fixedly mounted on the frame 1;

[0036] The drive shaft 13 is screwed onto the mounting seat 12 via bearings;

[0037] Rotating frame 14, which is fixedly mounted on drive shaft 13;

[0038] The transmission arm 15 is screwed onto the right end of the suspension via a rotating shaft, and the other end of the transmission arm 15 is screwed onto the guide sleeve 11 via a rotating shaft.

[0039] Support shaft seat 4, which is fixedly mounted on the frame 1;

[0040] Rotary arm 5, wherein the rotary arm 5 is spun onto the support shaft seat 4 via a rotating shaft;

[0041] A secondary clamping plate 6 is fixedly disposed at the lower end of the rotating arm 5 and is disposed on the side of the main clamping plate 3.

[0042] Support pin 16 is fixedly installed on the left end of the rotating frame 14. The upper end of the rotating arm 5 is provided with a guide groove 17, and the support pin 16 is movably inserted into the guide groove 17.

[0043] A drive shaft 18 is screwed onto the frame 1 via bearings;

[0044] The worm gear 19 is fixedly mounted in series on the transmission shaft 18;

[0045] Worm gear 20, which is fixedly mounted on drive shaft 13, and worm 19 is meshed with worm gear 20;

[0046] Connecting seat 21, which is fixedly mounted on the end of the transmission shaft 18.

[0047] When using this device, the frame workpiece is connected to the conductive end through terminal 7, and then clamped between the main clamping plate 3 and the auxiliary clamping plate 6. This achieves sealing and isolation of the inner wall of the frame workpiece by closing the port of the frame workpiece through the main clamping plate 3 and the auxiliary clamping plate 6. Then, the frame workpiece is sent into the electroplating bath for electroplating, thereby achieving electroplating of the outer surface of the frame workpiece. When electroplating the inner cavity wall of the frame workpiece, the power unit drives the drive shaft 18 to rotate, the drive shaft 18 drives the worm gear 19 to rotate in the forward direction, the worm gear 19 drives the worm wheel 20 to rotate, the worm wheel 20 drives the drive shaft 13 to rotate, and the drive shaft 13 drives the rotating frame 14 to rotate in the forward direction, so that the rotating frame 14 drives the drive arm 15 to lift upward. The transmission arm 15 pulls the guide sleeve 11 to move upward on the guide rod 10. The guide sleeve 11 pulls the connecting arm 8 to rotate through the connecting rod 9. As a result, the connecting arm 8 drives the main clamping plate 3 to rotate. At the same time, the rotating frame 14 drives the support pin 16 to descend. The support pin 16 pushes the end of the rotating arm 5 with the guide groove 17 to descend and rotate downward. As a result, the rotating arm 5 drives the auxiliary clamping plate 6 to rotate, so that the main clamping plate 3 and the auxiliary clamping plate 6 rotate and open, and release the clamped frame workpiece. Then the frame workpiece is suspended on the terminal 7 through the wire, and the inner cavity wall of the frame workpiece is exposed. Thus, the frame workpiece is sent into the electroplating bath to realize the electroplating of the inner cavity wall of the frame workpiece, that is, the double-sided electroplating process of the outer surface and inner cavity wall of the frame workpiece.

[0048] Compared with the prior art, the beneficial effects of this utility model are:

[0049] 1. This device is equipped with a foldable main clamping plate 3 and a secondary clamping plate 6, and a wiring terminal 7 is provided on the main clamping plate 3. This allows the frame workpiece to be clamped by the main clamping plate 3 and the secondary clamping plate 6, thereby achieving a sealed isolation of the inner cavity wall of the frame workpiece. This enables double-sided electroplating processing of the outer and inner surfaces of the frame workpiece.

[0050] 2. This device is equipped with a rotating frame 14, which is connected to the guide groove 17 on the rotating arm 5 via a support pin 16 to achieve a transmission connection with the auxiliary clamping plate 6. The rotating frame 14 is connected to the guide sleeve 11 via a transmission arm 15, and the large box sleeve is connected to the connecting arm 8 via a connecting rod 9 to achieve a transmission connection between the rotating frame 14 and the main clamping plate 3. That is, the opening and closing movement of the bracket Akasaka and the auxiliary clamping plate 6 is controlled by the movement of the rotating frame 14.

[0051] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-sided electroplating apparatus for lead frames, comprising a frame (1); characterized in that, It also includes: Support frame (2), the support frame (2) is fixedly installed on the lower surface of the top plate of the frame (1); The main clamping plate (3) is spun onto the lower end of the support frame (2) via a rotating shaft; Support shaft seat (4), the support shaft seat (4) is fixedly mounted on the frame (1); Rotary arm (5), the rotary arm (5) is spun onto the support shaft seat (4) via a rotating shaft; The auxiliary clamping plate (6) is fixedly installed at the lower end of the rotating arm (5) and is located on the side of the main clamping plate (3). The wiring terminal (7) is fixedly mounted on the main clamping plate (3).

2. The double-sided electroplating apparatus for lead frames according to claim 1, characterized in that: A connecting arm (8) is fixedly installed on the wall opposite to the wiring terminal (7) on the main clamping plate (3), and a connecting rod (9) is screwed onto the movable end of the connecting arm (8) via a rotating shaft.

3. The double-sided electroplating apparatus for lead frames according to claim 2, characterized in that: The support frame (2) is integrally formed with a guide rod (10), and a guide sleeve (11) is movably sleeved on the guide rod (10). The end of the connecting rod (9) away from the connecting arm (8) is screwed onto the guide sleeve (11) through a rotating shaft.

4. The double-sided electroplating apparatus for lead frames according to claim 3, characterized in that: The frame (1) is fixedly provided with a mounting shaft seat (12), and a drive shaft (13) is spun on the mounting shaft seat (12) via a main shaft. A rotating frame (14) is fixedly provided on the drive shaft (13). A transmission arm (15) is spun on one end of the rotating frame (14) away from the drive shaft (13) via a rotating shaft. The other end of the transmission arm (15) is spun on the guide sleeve (11) via a rotating shaft.

5. The double-sided electroplating apparatus for lead frames according to claim 4, characterized in that: A support pin (16) is fixedly installed on one end of the rotating frame (14) away from the transmission arm (15), and a guide groove (17) is provided on the rotating arm (5), and the support pin (16) is movably inserted into the guide groove (17).

6. The double-sided electroplating apparatus for lead frames according to claim 5, characterized in that: The same drive shaft (18) is spun on the frame (1) via bearings. A worm gear (19) is connected in series on the drive shaft (18). A worm wheel (20) is fixedly installed on the drive shaft (13). The worm gear (19) and the worm wheel (20) are meshed. Connecting seats (21) are fixedly installed at both ends of the drive shaft (18).

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