A base plate electroplating fixture

Abstract

This utility model relates to the field of electroplating technology, specifically to a base plate electroplating fixture, including a workpiece station. The workpiece station includes a placement opening, and an anti-drop component is connected below the placement opening. A cutout is provided between the placement opening and the anti-drop component. In use, the workpiece is placed into the workpiece station through the placement opening, and then electroplating is performed. By providing the cutout, the workpiece can be electroplated under the vibration function of the electroplating tank or manual vibration, and the formation of binding marks is prevented. By providing the cutout, the electric field lines at the edge of the base plate can be dispersed, preventing uneven thickness distribution caused by edge effects during workpiece electroplating, ensuring normal electroplating and not affecting the electroplating effect.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology, specifically to a base plate electroplating fixture. Background Technology

[0002] Currently, the methods for attaching nickel-gold plated substrates to the substrate mostly involve wrapping copper wire and using custom-made hangers. However, these methods all have the drawback of leaving hanger marks.

[0003] In the field of metal electroplating, the mounting fixture, as the core carrier connecting the workpiece and the power source, directly affects the surface quality of the plating layer and production efficiency through its contact method. Especially for the precision electroplating of miniature iron parts (e.g., 5mm × 5mm × 0.5mm), existing mainstream technologies suffer from the following common defects:

[0004] 1. Copper wire winding method:

[0005] The process of manually winding copper wire around the edge of the workpiece makes it difficult to precisely control the pressure at the contact point, resulting in micro-indentations (commonly known as "fixture marks") in the contact area between the workpiece and the copper wire after electroplating. Defective products need to be removed by inspection with a high-powered microscope.

[0006] Copper wire has poor contact stability with the workpiece. During the electroplating process, it is prone to contact failure due to vibration or liquid flow impact, which can lead to localized plating defects.

[0007] The hanging operation is cumbersome and makes it difficult to achieve rapid batch clamping.

[0008] 2. Customized hanging fixture method:

[0009] Using rigid clamps to fix the workpiece, the contact surface is rigidly pressed against the workpiece, which improves the electrical conductivity stability, but will cause mechanical damage to the workpiece surface.

[0010] Plating solution can easily remain at the contact edges between the fixture and the workpiece, forming a boundary oxide layer, which requires an additional cleaning process.

[0011] While existing flexible contact head hangers attempt to reduce indentations through flexible contact, their rigid base is prone to deformation under the high temperatures of electroplating, leading to an imbalance in contact pressure and failing to completely eliminate microscopic hanger marks. Furthermore, the flexible structure requires frequent manual adjustments, significantly reducing hanging efficiency. Utility Model Content

[0012] The purpose of this utility model is to provide a base plate electroplating hanger, which solves the technical problem that the copper wire winding method has indentation and the customized hanger method has low hanging efficiency.

[0013] This utility model discloses a base plate electroplating fixture, including a workpiece station, the workpiece station including a placement opening, an anti-drop component connected below the placement opening, and a hollowed-out area between the placement opening and the anti-drop component.

[0014] Working principle: During use, the workpiece is placed into the workpiece station through the placement port, and then electroplating is performed. By setting the perforations, the workpiece can be electroplated under the vibration function of the electroplating tank or manual vibration, and the formation of binding marks is prevented. The perforations also disperse the electric field lines at the edge of the base plate, preventing uneven thickness distribution caused by edge effects during workpiece electroplating, ensuring normal electroplating and not affecting the electroplating effect.

[0015] Furthermore, the width of the placement opening is 1-2 mm.

[0016] Furthermore, the anti-drop component is an anti-drop rod, which connects to different sides of the placement opening.

[0017] By setting the anti-drop component as an anti-drop rod connecting different sides of the placement opening, the area of ​​the hollowed-out area can be expanded while ensuring the anti-drop effect, thus guaranteeing the electroplating effect.

[0018] Furthermore, the anti-fall rod is U-shaped.

[0019] Furthermore, the distance from the bottom of the anti-drop rod to the placement opening is greater than half the height of the workpiece.

[0020] By setting the distance from the bottom of the anti-drop rod to the placement opening to be greater than half the height of the workpiece, the stability of the workpiece within the workpiece station can be guaranteed, preventing the workpiece from falling out of the station due to vibration.

[0021] Furthermore, the distance from the anti-drop rod to the placement opening is less than the height of the workpiece.

[0022] By setting the distance from the anti-drop rod to the placement opening to be less than the height of the workpiece, the workpiece is prevented from falling out of the workpiece station from the cutout.

[0023] Furthermore, the contact point between the anti-drop rod and the workpiece is an elastic contact head.

[0024] By setting up elastic contact heads, conductive points are provided for the electroplated workpieces, resulting in a large current-carrying area and low resistance. The resistance can be further reduced during the electroplating process, leading to low electroplating energy consumption, short electroplating time, high production efficiency, and reduced costs.

[0025] Furthermore, the placement opening is a ring-shaped rod connected end to end.

[0026] Furthermore, both ends of the ring rod are arc-shaped.

[0027] By setting the two ends of the ring rod to be arc-shaped, it can limit the workpiece and prevent it from falling off during vibration.

[0028] Furthermore, the middle part of the annular rod consists of two parallel straight rods.

[0029] By setting the middle of the ring rod to be two parallel straight rods, the size of the placement opening is reduced while matching the shape of the workpiece, thus ensuring the safety of the workpiece.

[0030] Furthermore, the anti-drop component is connected to the middle of the two straight rods.

[0031] By connecting the anti-drop component to the middle of the two linear rods, the anti-drop component is positioned in the middle of the workpiece station, maximizing the anti-drop effect.

[0032] Furthermore, the workpiece station is set on the support frame.

[0033] Furthermore, the workpiece station is connected to the support frame via a support rod.

[0034] Furthermore, the support frame has workpiece stations on both its front and back sides.

[0035] Furthermore, the support frame is connected to a conductive hook.

[0036] By setting a conductive hook, it is connected to the cathode of the electroplating tank to conduct electricity.

[0037] Furthermore, except for the conductive hook and the elastic contact head, all other parts are coated with a 200μm thick epoxy resin insulating coating, resulting in low production costs.

[0038] Compared with the prior art, the beneficial effects of this utility model are:

[0039] 1. Simple structure and light weight, making it easy to move and load / unload on electroplating production lines;

[0040] 2. By setting hollowed-out areas, the workpiece can be electroplated under the vibration function of the electroplating tank or manual vibration, and the binding marks are prevented.

[0041] 3. By setting the hollowed-out areas, the electric lines on the edge of the base plate can be dispersed, preventing uneven thickness distribution caused by edge effect during workpiece electroplating, ensuring normal electroplating and not affecting the electroplating effect;

[0042] 4. By setting the anti-drop component as an anti-drop rod connecting different sides of the placement opening, the area of ​​the hollowed-out area can be increased while ensuring the anti-drop effect, thus ensuring the electroplating effect;

[0043] 5. By setting the distance from the bottom of the anti-drop rod to the placement opening to be greater than half the height of the workpiece, the stability of the workpiece in the workpiece station can be guaranteed, and the workpiece can be prevented from falling out of the station due to vibration.

[0044] 6. By setting up elastic contact heads, conductive points are provided for electroplated workpieces, resulting in a large current-carrying area and low resistance. The resistance can be further reduced during the electroplating process, resulting in low electroplating energy consumption, short electroplating time, high production efficiency, and reduced costs.

[0045] 7. By setting the distance from the anti-drop rod to the placement opening to be less than the height of the workpiece, the workpiece is prevented from falling out of the workpiece station from the cutout;

[0046] 8. By setting the two ends of the ring rod to be arc-shaped, it can limit the workpiece and prevent it from falling off during vibration;

[0047] 9. By setting the middle of the ring rod to be two parallel straight rods, the shape of the workpiece is matched, while the size of the placement opening is reduced, ensuring the safety of the workpiece;

[0048] 10. By connecting the anti-drop component to the middle of the two straight rods, the anti-drop component is located in the middle of the workpiece station, thereby maximizing the anti-drop effect. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the workpiece station structure of this utility model.

[0051] Figure 2 This is a schematic diagram of the overall structure of the hanging device of this utility model.

[0052] Figure 3 This is a top view of the hanging device of this utility model.

[0053] In the above attached figures, the meanings of each mark are as follows: 1-workpiece station, 2-placement opening, 3-anti-drop component, 4-cutout, 5-elastic contact head, 6-arc shape, 7-straight rod, 8-support frame, 9-conductive hook, 10-support rod. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments.

[0055] Example 1

[0056] The technical solution adopted in this embodiment is as follows:

[0057] like Figures 1-3 As shown, a base plate electroplating fixture includes a workpiece station 1, the workpiece station 1 includes a placement opening 2, an anti-drop component 3 is connected below the placement opening 2, and a cutout 4 is provided between the placement opening 2 and the anti-drop component 3.

[0058] Working principle: During use, the workpiece is placed into workpiece station 1 through placement port 2, and then electroplating is performed. By setting the perforation 4, the workpiece can be electroplated under the vibration function of the electroplating tank or manual vibration, preventing the formation of binding marks. The perforation 4 also disperses the electric field lines at the edge of the base plate, preventing uneven thickness distribution caused by edge effects during electroplating, ensuring normal electroplating and not affecting the electroplating effect.

[0059] Example 2

[0060] This embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figures 1-3 As shown, based on Embodiment 1, the following improvements are disclosed: the width of the placement opening 2 is 1-2 mm; the anti-drop component 3 is an anti-drop rod; the anti-drop rod connects different surfaces of the placement opening 2; the anti-drop rod is U-shaped; the distance from the bottom of the anti-drop rod to the placement opening 2 is greater than half the height of the workpiece; the distance from the anti-drop rod to the placement opening 2 is less than the height of the workpiece; and the contact point between the anti-drop rod and the workpiece is an elastic contact head 5.

[0061] By setting the anti-drop component 3 as an anti-drop rod connecting different sides of the placement opening 2, the area of ​​the hollow part 4 can be expanded while ensuring the anti-drop effect, thus ensuring the electroplating effect.

[0062] By setting the distance from the bottom of the anti-drop rod to the placement opening 2 to be greater than half the height of the workpiece, the stability of the workpiece within the workpiece station 1 can be guaranteed, preventing the workpiece from falling out of the station due to vibration.

[0063] By providing an elastic contact head 5, a conductive point is provided for the electroplated workpiece. The current-carrying area is large and the resistance is small. The resistance can be further reduced during the electroplating process. The electroplating energy consumption is low, the electroplating time is short, the production efficiency is high, and the cost can be reduced.

[0064] By setting the distance from the anti-drop rod to the placement opening 2 to be less than the height of the workpiece, the workpiece is prevented from falling out of the workpiece station 1 from the cutout 4.

[0065] Example 3

[0066] This embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figures 1-3As shown, based on embodiment 2, the following improvement is disclosed: the placement port 2 is an annular rod connected end to end, the two ends of the annular rod are arcs 6, the middle part of the annular rod is two parallel straight rods 7, and the anti-drop component 3 is connected to the middle part of the two straight rods 7.

[0067] By setting the two ends of the ring rod to be arc-shaped (6), the workpiece can be limited, preventing it from falling off during vibration.

[0068] By setting the middle of the ring rod to have two parallel straight rods 7, the shape of the workpiece is matched, while the size of the placement opening 2 is reduced, ensuring the safety of the workpiece.

[0069] By connecting the anti-drop component 3 to the middle of the two straight rods 7, the anti-drop component 3 is located in the middle of the workpiece station 1, thereby maximizing the anti-drop effect.

[0070] Example 4

[0071] This embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figures 1-3 As shown, based on embodiment 3, the following improvements are disclosed: the workpiece station 1 is set on the support frame 8, the workpiece station 1 and the support frame 8 are connected by a support rod 10, the support frame 8 is provided with workpiece stations 1 on both the front and back sides, the support frame 8 is connected with a conductive hook 9, and except for the conductive hook 9 and the elastic contact head 5, all are sprayed with a 200μm thick epoxy resin insulating coating, resulting in low production cost.

[0072] By setting a conductive hook 9, it is connected to the cathode of the electroplating tank to conduct electricity.

[0073] The above are the embodiments listed in this example. However, this example is not limited to the optional embodiments described above. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can derive other various forms of embodiments based on the inspiration of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example. The scope of protection of this example should be determined by the claims, and the specification can be used to interpret the claims.

Claims

1. A backplane electroplating rack, characterized by: The workpiece station (1) includes a placement opening (2), and an anti-drop component (3) is connected below the placement opening (2). A cutout (4) is provided between the placement opening (2) and the anti-drop component (3).

2. The electroplating rack of claim 1, wherein: The anti-drop component (3) is an anti-drop rod, which is connected to different sides of the placement opening (2).

3. The electroplating rack of claim 2, wherein: The anti-fall rod is U-shaped.

4. The electroplating rack of claim 2 or 3, wherein: The distance from the bottom of the anti-fall rod to the placement opening (2) is greater than half the height of the workpiece.

5. The electroplating rack of claim 2, wherein: The contact point between the anti-drop rod and the workpiece is an elastic contact head (5).

6. The electroplating rack of claim 1, wherein: The placement port (2) is a ring rod connected end to end.

7. The electroplating rack of claim 6, wherein: The two ends of the ring rod are arc-shaped (6).

8. A base plate electroplating fixture according to claim 6, characterized in that: The middle part of the ring rod consists of two parallel straight rods (7).

9. A base plate electroplating fixture according to claim 8, characterized in that: The anti-fall component (3) is connected to the middle of the two straight rods (7).

10. A base plate electroplating fixture according to claim 1, characterized in that: The workpiece station (1) is set on the support frame (8).

Images