Anode device for electroplating and electroplating device
By designing an anode device for electroplating including a main anode and a bent anode, the problem that traditional devices cannot effectively regulate the current distribution is solved, the uniformity and integrity of the plating layer are achieved, and the product quality and reliability are improved.
Patent Information
- Application Number
- CN202421842293.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-01
AI Technical Summary
Traditional anode devices for electroplating cannot effectively regulate the current distribution, resulting in unevenness and incompleteness of the plating on complex-shaped parts, affecting product quality and reliability.
An anode device for electroplating is designed, including a main anode and a bent anode. The bent anode extends from the main anode to the outside of the inner cavity of the part to be processed through bending and bending, and partially extends into the hole or groove to ensure uniformity of the current distribution.
Through this device, the integrity and uniformity of the coating are achieved, the occurrence of adverse phenomena is reduced, and the product quality and reliability are improved. It is especially suitable for the processing of large-sized cavity parts.
Smart Images
Figure CN222975336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electroplating equipment, in particular to an anode device for electroplating and an electroplating device. Background Art
[0002] During the electroplating process, the uniformity of current distribution has a direct relationship with the quality of the coating. Due to the "tip effect", the power lines (ion movement trajectories) are prone to concentrate at the edges and tips of the parts, resulting in a relatively large current density at the edges and tips. The power lines are dispersed in the concave structures or uneven places, resulting in inconsistent coating thickness, relatively thin local coatings or even no coatings, affecting the appearance and coating performance of the product.
[0003] Traditional anode devices for electroplating are mostly of simple shapes, such as flat anodes, which cannot effectively regulate the current distribution and are only suitable for parts with simple shapes and small volumes. Shape characteristics such as cavity structures, groove corners, blind holes, and through holes will have complex effects on the current distribution, and simple-shaped anode devices cannot ensure the coating integrity and coating quality of complex parts with these shape characteristics. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an anode device for electroplating and an electroplating device to solve the problems existing in the above-mentioned prior art, which can ensure the integrity and uniformity of the coating, reduce the occurrence of bad phenomena, and improve the product quality and reliability.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides an anode for electroplating, including a main anode and a bent anode. The bent anode includes at least one first bent anode and / or at least one second bent anode. Each first bent anode is connected to the main anode, and each second bent anode is connected to the main anode; the main anode is used to be arranged in the inner cavity of the workpiece to be processed; each first bent anode can extend from the inner cavity outlet of the workpiece to the outside of the inner cavity. The end face of the workpiece near the inner cavity outlet is the end face to be processed. Each first bent anode can partially extend into the first hole or groove on the end face to be processed; each second bent anode can extend from the inner cavity outlet to the outside of the inner cavity, and each second bent anode can partially extend into the second hole or groove on the outer side wall of the workpiece to be processed.
[0007] Preferably, each of the first bent anodes includes a first bent body and a U-shaped second bent body. Each of the second bent bodies includes a first anode section, a second anode section, and a third anode section that are sequentially connected end to end. Two ends of each of the first bent bodies are respectively fixedly connected to the main anode and one end of the first anode section away from the second anode section; each of the first bent bodies can extend away from the main anode and extend from the inner cavity outlet to the outside of the inner cavity; each of the second anode sections can extend into the first hole or groove on the to-be-processed end face.
[0008] Preferably, each of the second anode sections is a curved anode section; each of the first bent bodies, each of the first anode sections, and each of the third anode sections are insulating members.
[0009] Preferably, one end of each of the first anode sections close to the corresponding second anode section and one end of each of the third anode sections close to the corresponding second anode section can contact the inner side wall of the first hole or groove, and a gap is left between the second anode section and the inner wall of the first hole or groove.
[0010] Preferably, each of the first bent bodies includes a fourth anode section and a fifth anode section. A first end of the fourth anode section and a first end of the fifth anode section of each of the first bent bodies are fixedly connected to form an L-shaped bent body. A second end of the fifth anode section of each of the first bent anodes is fixedly connected to one end of the first anode section away from the second anode section, and a second end of each of the fourth anode sections is fixedly connected to the main anode; the first end of each of the fourth anode sections can extend away from the main anode and extend from the inner cavity outlet to the outside of the inner cavity.
[0011] Preferably, each of the second bent anodes includes a third bent body, a fourth bent body, and a working anode that are sequentially connected. Each of the third bent bodies is fixedly connected to the main anode; each of the third bent bodies can extend away from the main anode and extend from the inner cavity outlet to the outside of the inner cavity; one end of each of the fourth bent bodies close to the working anode extends towards the center line of the main anode; each of the working anodes is used to be arranged in the second hole or groove.
[0012] Preferably, each of the third bent bodies and each of the fourth bent bodies are insulating components. Each of the third bent bodies and each of the fourth bent bodies are in an L shape, and a gap is left between the working anode and the inner wall of the second hole or groove.
[0013] Preferably, the main anode is annular.
[0014] The present utility model provides a plating device, which is provided with the anode device for plating as described above.
[0015] The present utility model has achieved the following technical effects compared with the prior art:
[0016] The present utility model provides an anode device for plating and a plating device, including a main anode and a bent anode. The bent anode includes at least one first bent anode and / or one second bent anode. The main anode is used to be arranged inside the cavity of the workpiece to be processed. Each first bent anode can extend from the outlet of the cavity of the workpiece to the outside of the cavity. The end face of the workpiece near the outlet of the cavity is the end face to be processed. Each first bent anode can partially extend into the first hole or groove on the end face to be processed. Each second bent anode can extend from the outlet of the cavity to the outside of the cavity. Each second bent anode can partially extend into the second hole or groove on the outer side wall of the workpiece to be processed. By embedding the main anode into the cavity, the integrity and uniformity of the coating inside the cavity are ensured. By arranging the first bent anode, the first bent anode extends from the main anode to the outside of the cavity in a bent and curved manner, and the part of the first bent anode extending to the outside of the cavity extends into the first hole or groove, so as to ensure the integrity and uniformity of the coating on the inner wall of the first hole or groove. By arranging the second bent anode, the second bent anode extends from the main anode to the outside of the cavity in a bent and curved manner, and the part of the second bent anode extending to the outside of the cavity extends into the second hole or groove, so as to ensure the integrity and uniformity of the coating on the inner wall of the second hole or groove. The present utility model manufactures the anode device for plating according to the part structure, can effectively improve the surface current distribution of the workpiece to be processed, realize a more uniform current distribution, can significantly improve the coating uniformity, reduce the occurrence of defective phenomena, and improve the product quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 It is a schematic structural diagram of the anode device for plating provided for Embodiment 1;
[0019] In the figure: 100, an anode device for electroplating; 1, a main anode; 2, a first bent anode; 201, a first anode section; 202, a second anode section; 203, a third anode section; 204, a fourth anode section; 205, a fifth anode section; 3, a second bent anode; 301, a working anode; 302, a sixth anode section; 303, a seventh anode section; 304, an eighth anode section; 305, a ninth anode section. Specific embodiments
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] The purpose of the present invention is to provide an anode device for electroplating and an electroplating device to solve the problems existing in the above-mentioned prior art, which can improve the integrity and uniformity of the coating, reduce the occurrence of defective phenomena, and improve the product quality and reliability.
[0022] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] Embodiment 1
[0024] As Figure 1As shown in the figure, this embodiment provides an anode device 100 for electroplating, which includes a main anode 1 and a bent anode. The bent anode includes at least one first bent anode 2 and / or at least one second bent anode 3. Each first bent anode 2 is connected to the main anode 1, and each second bent anode 3 is connected to the main anode 1; the main anode 1 is used to be arranged in the inner cavity of the workpiece to be processed; each first bent anode 2 can extend from the inner cavity outlet of the workpiece to the outside of the inner cavity. The end face of the workpiece near the inner cavity outlet is the end face to be processed. Each first bent anode 2 can partially extend into the first hole or groove on the end face to be processed; each second bent anode 3 can extend from the inner cavity outlet to the outside of the inner cavity, and each second bent anode 3 can partially extend into the second hole or groove on the outer side wall of the workpiece to be processed. By embedding the main anode 1 into the inner cavity, the integrity and uniformity of the coating in the inner cavity are ensured; by setting the first bent anode, the first bent anode extends from the main anode 1 to the outside of the inner cavity in a bent and curved manner, and the part of the first bent anode 2 extending to the outside of the inner cavity extends into the first hole or groove, so as to ensure the integrity and uniformity of the coating on the inner wall of the first hole or groove; by setting the second bent anode, the second bent anode extends from the main anode 1 to the outside of the inner cavity in a bent and curved manner, and the part of the second bent anode 3 extending to the outside of the inner cavity extends into the second hole or groove, so as to ensure the integrity and uniformity of the coating on the inner wall of the second hole or groove. According to the structure of the part, this embodiment specifically manufactures the anode device 100 for electroplating, which can effectively improve the surface current distribution of the workpiece to be processed to achieve a more uniform current distribution, can significantly improve the coating uniformity, reduce the occurrence of defective phenomena, improve the product quality and reliability, and thus solves the problems of local lack of coating and inconsistent colors inside and outside the part that often occur in the inner cavity and deep holes of the part during electroplating. It is especially suitable for the processing of large-size cavity parts, ensuring the integrity and coating quality of the coating in the low-current density area of the cavity parts.
[0025] In this embodiment, each first bent anode 2 includes a first bent body and a U-shaped second bent body. Each second bent body includes a first anode section 201, a second anode section 202, and a third anode section 203 that are sequentially connected end to end. The two ends of each first bent body are respectively fixedly connected to the main anode 1 and the end of the first anode section 201 far from the second anode section 202; each first bent body can extend in a direction away from the main anode 1 and extend from the inner cavity outlet to the outside of the inner cavity; each second anode section 202 can extend into the first hole or groove on the end face to be processed.
[0026] In this embodiment, one end of each first anode segment 201 close to the corresponding second anode segment 202 and one end of each third anode segment 203 close to the corresponding second anode segment 202 can be in contact with the inner sidewall of the first hole or groove, and a gap is left between the second anode segment 202 and the inner wall of the first hole or groove. The second bending body is made into a U shape, and the first anode segment 201 and the third anode segment 203 are in contact with the inner sidewall of the first hole or groove, so that a certain degree of support can be provided, which facilitates the fixed installation of the anode device 100 for electroplating. Especially when there are multiple (such as three) second bending bodies, relatively stable support can be provided.
[0027] In this embodiment, each second anode segment 202 is a curved anode segment; each first bending body, each first anode segment 201, and each third anode segment 203 are all insulating parts, so that the main body anode 1, the first bending body, the first anode segment 201, the third anode segment 203, the connection parts of these components, and the support part between the second bending body and the first hole or groove are in an insulating state, preventing the workpiece to be processed from contacting the anode device when it shakes.
[0028] In this embodiment, each first bending body includes a fourth anode segment 204 and a fifth anode segment 205. The first ends of the fourth anode segment 204 and the fifth anode segment 205 of each first bending body are fixedly connected to form an L-shaped bending body. The second end of the fifth anode segment 205 of each first bending anode 2 is fixedly connected to the end of the first anode segment 201 far from the second anode segment 202, and the second end of each fourth anode segment 204 is fixedly connected to the main body anode 1; the first end of each fourth anode segment 204 can extend in a direction away from the main body anode 1 and extend from the inner cavity outlet to the outside of the inner cavity.
[0029] As a preferred embodiment, the fourth anode segment 204 extends in a first direction, and the first direction is parallel to or forms an acute angle with the center line of the main body anode 1; the fifth anode segment 205 extends in a direction away from the center line of the main body anode 1; the first anode segment 201 and the third anode segment 203 extend in a second direction, and the second direction is parallel to or forms an acute angle with the center line of the main body anode 1, and the second direction is opposite or substantially opposite to the first direction.
[0030] In this embodiment, each second bending anode 3 includes a third bending body, a fourth bending body, and a working anode 301 connected in sequence. Each third bending body is fixedly connected to the main body anode 1; each third bending body can extend in a direction away from the main body anode 1 and extend from the inner cavity outlet to the outside of the inner cavity; one end of each fourth bending body close to the working anode 301 extends in a direction close to the center line of the main body anode 1; each working anode 301 is used to be arranged in the second hole or groove.
[0031] In this embodiment, each third bent body and each fourth bent body are insulating components, and each third bent body and each fourth bent body are in an L shape. A gap is left between the working anode 301 and the inner wall of the second hole or groove.
[0032] As a preferred embodiment, the third bent body includes a sixth anode section 302 and a seventh anode section 303 that are connected to each other. The fourth bent body includes an eighth anode section 304 and a ninth anode section 305 that are fixedly connected to each other. The two ends of the sixth anode section 302 are fixedly connected to the main body anode 1 and the first end of the seventh anode section 303 respectively. The two ends of the eighth anode section 304 are fixedly connected to the first end of the ninth anode section 305 and the second end of the seventh anode section 303 respectively. The second end of the ninth anode section 305 is fixedly connected to the working anode 301. The sixth anode section 302 extends along a third direction, and the third direction is parallel to or forms an acute angle with the center line of the main body anode 1; the seventh anode section 303 extends in a direction away from the center line of the main body anode 1; the eighth anode section 304 extends along a fourth direction, and the fourth direction is parallel to or forms an acute angle with the center line of the main body anode 1. The third direction and the fourth direction are opposite or substantially opposite directions; the ninth anode section 305 extends in a direction close to the center line of the main body anode 1; the working anode 301 is strip-shaped and is perpendicular to the length direction of the ninth anode section 305.
[0033] In this embodiment, the main body anode 1 is annular and functions as a skeleton. The first bent anode 2 and the second bent anode 3 are welded to the main body anode 1. Since the space where the power lines are dispersed is small, to prevent the electroplating anode device 100 from accidentally contacting and electrifying the workpiece to be processed, the main body anode 1, the first bent body, the second bent body, the third bent body, the fourth bent body, and the working anode 301 are all made of stainless steel plates with a thickness of 3 mm, so that there is enough space for the anode in the tank.
[0034] As a preferred embodiment, the number of the first bent anodes 2 is the same as and corresponds one by one to the number of the first holes or grooves, and the number of the second bent anodes 3 is the same as and corresponds one by one to the number of the second holes or grooves.
[0035] Using the electroplating anode device 100 of this embodiment, cadmium plating is performed on the surface of the workpiece to be processed to verify the effect. According to the existing process flow and parameters, after electroplating is completed, the thickness of each part of the workpiece to be processed is measured using a thickness gauge, and the appearance of the coating is observed. It is verified that the coating on the surface of the workpiece to be processed is complete, the color is uniform, and the coating thickness meets the process requirements. The electroplating anode device 100 of this embodiment can achieve targeted current guidance, thus ensuring the integrity of the coating and the coating quality to the greatest extent.
[0036] Embodiment 2
[0037] This embodiment provides an electroplating device, which is provided with the anodic device 100 for electroplating in Embodiment 1.
[0038] Embodiment 3
[0039] This embodiment provides a method for manufacturing an anode for electroplating, including the following steps:
[0040] According to the structure and shape of the workpiece to be processed, obtain the anodic device 100 for electroplating. The obtaining method includes:
[0041] If the workpiece to be processed has an inner cavity and the end face near the inner cavity outlet has a first hole or groove, then make the anodic device 100 for electroplating include a main anode 1 and at least one first bent anode 2; connect each first bent anode 2 to the main anode 1; the main anode 1 is used to be arranged in the inner cavity; each first bent anode 2 can extend from the inner cavity outlet of the workpiece to the outside of the inner cavity, and each first bent anode 2 can partially extend into the first hole or groove on the end face to be processed;
[0042] If the workpiece to be processed has an inner cavity and a second hole or groove is provided on the outer side wall of the workpiece, then make the anodic device 100 for electroplating include a main anode 1 and at least one second bent anode 3; connect each second bent anode 3 to the main anode 1; each second bent anode 3 can extend from the inner cavity outlet of the workpiece to the outside of the inner cavity, and each second bent anode 3 can partially extend into the second hole or groove on the end face to be processed;
[0043] If the workpiece to be processed has an inner cavity, a first hole or groove, and a second hole or groove, then make the anodic device 100 for electroplating include a main anode 1, at least one first bent anode 2, and at least one second bent anode 3.
[0044] According to production experience or by checking production data records, obtain the parts of the workpiece to be processed that are prone to uneven or missing plating during electroplating. Specifically: no plating is likely to occur at the corners of the inner cavity of the part, in the outer contour grooves or holes. The plating color in the deep cavity is lighter and the thickness is thinner. According to the shape characteristics of the workpiece to be processed, embed the main anode 1 in the inner cavity, and extend the first bent anode 2 or the second bent anode 3 into the outer contour groove or hole to achieve the purpose of uniform current distribution.
[0045] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.
Claims
1. An anode device for electroplating, characterized in that: It comprises a main body anode and a bent anode, wherein the bent anode comprises at least one first bent anode and / or at least one second bent anode, each of the first bent anodes is connected to the main body anode, and each of the second bent anodes is connected to the main body anode; the main body anode is used to be arranged in the inner cavity of the workpiece to be processed; each of the first bent anodes can extend from the inner cavity outlet of the workpiece to be processed to the outside of the inner cavity, the end face of the workpiece to be processed close to the inner cavity outlet is the end face to be processed, and each of the first bent anodes can partially extend into the first hole or groove on the end face to be processed; each of the second bent anodes can extend from the inner cavity outlet to the outside of the inner cavity, and each of the second bent anodes can partially extend into the second hole or groove on the outer wall of the workpiece to be processed.
2. The electroplating anode device according to claim 1, characterized in that: Each of the first bent anodes includes a first bent body and a U-shaped second bent body, each of the second bent bodies includes a first anode segment, a second anode segment and a third anode segment connected end to end in sequence, and the two ends of each of the first bent bodies are respectively fixedly connected to the main anode and an end of the first anode segment away from the second anode segment; each of the first bent bodies can extend in a direction away from the main anode and extend from the inner cavity outlet to the outside of the inner cavity; each of the second anode segments can extend into the first hole or groove on the end face to be processed.
3. The electroplating anode device according to claim 2, characterized in that: Each of the second anode segments is a curved anode segment; each of the first bent bodies, each of the first anode segments and each of the third anode segments are insulating members.
4. The electroplating anode device according to claim 2, characterized in that: One end of each first anode segment close to the corresponding second anode segment and one end of each third anode segment close to the corresponding second anode segment can contact the inner wall of the first hole or groove, and a gap is left between the second anode segment and the inner wall of the first hole or groove.
5. The electroplating anode device according to any one of claims 2 to 4, characterized in that: Each of the first bent bodies includes a fourth anode segment and a fifth anode segment, the first end of the fourth anode segment of each of the first bent bodies and the first end of the fifth anode segment are fixedly connected to form an L-shaped bent body, the second end of the fifth anode segment of each first bent anode is fixedly connected to an end of the first anode segment away from the second anode segment, and the second end of each of the fourth anode segments is fixedly connected to the main anode; the first end of each of the fourth anode segments can extend in a direction away from the main anode and extend from the inner cavity outlet to the outside of the inner cavity.
6. The electroplating anode device according to claim 1, characterized in that: Each of the second bent anodes includes a third bent body, a fourth bent body and a working anode connected in sequence, and each of the third bent bodies is fixedly connected to the main anode; each of the third bent bodies can extend in a direction away from the main anode and extend from the inner cavity outlet to the outside of the inner cavity; one end of each of the fourth bent bodies close to the working anode extends in a direction close to the center line of the main anode; each of the working anodes is used to be arranged in the second hole or groove.
7. The electroplating anode device according to claim 6, characterized in that: Each of the third bent bodies and each of the fourth bent bodies are insulating components, each of the third bent bodies and each of the fourth bent bodies are L-shaped, and a gap is left between the working anode and the inner wall of the second hole or groove.
8. The electroplating anode device according to claim 1, characterized in that: The main anode is ring-shaped.
9. An electroplating device, characterized in that: An anode device for electroplating according to any one of claims 1 to 8 is provided.