Adjustable spot plating jig
By combining the design of the annular fixed part and the moving part with the detachable conductive plate structure, the problems of non-adjustable gap and inconvenient maintenance of traditional spot plating fixtures are solved. This enables precise adjustment of the gap in the electroplating solution channel and improves the uniformity of the plating layer, thereby increasing production efficiency and conductivity stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI XINDATONG SEIKO TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
The gap of traditional spot plating fixtures is not adjustable, resulting in poor coating uniformity. They are particularly unsuitable for complex-shaped workpieces and are inconvenient to maintain, which is time-consuming and labor-intensive.
The design employs a coordinated approach of a ring-shaped fixed part and a moving part, allowing for precise adjustment of the gap in the electroplating solution delivery channel through adjusting bolts and guide rods. It also features a detachable conductive plate structure, which improves conductivity stability and ease of maintenance.
It enables continuous adjustment of the gap between electroplating solution channels, improves coating uniformity and production efficiency, extends the service life of fixtures, and reduces process debugging time.
Smart Images

Figure CN224160725U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electroplating fixture technology, and in particular to an adjustable spot plating fixture. Background Technology
[0002] In electroplating processes, selective spot plating technology is widely used due to its high efficiency and cost-effectiveness. Traditional spot plating fixtures typically employ a fixed structure, using positioning grooves or clamping mechanisms to hold the material strip, exposing the area to be plated to the electroplating solution for localized electroplating. However, such fixtures have the following significant drawbacks:
[0003] The gap is not adjustable: The gap of the electroplating solution delivery channel in the fixed structure is fixed and cannot be adjusted according to the requirements of the electroplating process (such as coating thickness and liquid flow rate), resulting in poor coating uniformity, especially insufficient adaptability to complex shaped workpieces.
[0004] Inconvenient maintenance: The conductive parts and baffles of the fixture are mostly integrated designs, requiring complete disassembly for replacement or cleaning, which is time-consuming and labor-intensive.
[0005] Therefore, in view of the shortcomings of the existing technology, it is necessary to design an adjustable spot plating fixture to solve the above problems.
[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content
[0007] To overcome the shortcomings of the prior art, the present invention discloses an adjustable spot plating fixture, which achieves precise adjustment of the gap in the electroplating solution delivery channel through the coordinated design of the annular fixed part and the moving part, while optimizing conductivity and maintenance convenience, and improving coating uniformity and production efficiency.
[0008] This utility model discloses an adjustable spot plating fixture, comprising:
[0009] The ring-shaped fixture fixing part is used to fix the material strip and prevent the electroplating solution from overflowing. It has a ring-shaped material strip baffle on its outer periphery to fix the material strip and prevent the electroplating solution from overflowing; a ring-shaped conductive plate is fixedly connected to one side for close contact with the product on the material strip.
[0010] The moving part of the annular fixture is coaxially arranged with the fixed part of the annular fixture and is connected to the annular conductive plate side of the fixed part of the annular fixture by at least two adjusting bolts distributed along the circumference.
[0011] The moving part of the annular fixture has an annular groove on the side near the fixed part, forming an adjustable gap electroplating solution delivery channel between the annular groove and the annular conductive plate. By rotating the adjusting bolt, the relative position of the moving part and the fixed part can be controlled, thereby adjusting the gap size of the electroplating solution delivery channel.
[0012] The preferred technical solution is as follows: guide rods are provided between the adjusting bolts, and guide holes are provided at corresponding positions on the fixed part of the annular fixture. The guide rods and guide holes are slidably fitted together. This ensures that the moving part moves smoothly along the axial direction and avoids deviation.
[0013] The preferred technical solution is as follows: the adjusting bolts and guide rods are arranged alternately at equal intervals along the circumference of the moving part of the annular fixture. This ensures uniform distribution of the adjusting force and improves the clearance accuracy.
[0014] Preferred technical solution: The annular material belt baffle is detachably sleeved on the outer periphery of the annular fixture fixing part by means of snap-fit or screw connection, which is convenient for cleaning or replacement.
[0015] Preferred technical solution: The annular conductive plate is fixed to the annular fixture fixing part by insulating screws, and its inner periphery is a sloping structure inclined towards the clamping space.
[0016] Preferred technical solution: The surface of the annular conductive plate is coated with ruthenium-iridium-titanium to improve corrosion resistance and conductivity stability.
[0017] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:
[0018] Gap Adjustability: The gap of the electroplating solution channel can be continuously adjusted by adjusting the bolts to adapt to different electroplating sizes and improve the uniformity of the coating.
[0019] Good electrical conductivity stability: The resistivity of the ruthenium-iridium-titanium coated conductive plate is stable under high temperature and high humidity conditions, which extends the service life of the fixture and ensures the quality of electroplating.
[0020] Easy maintenance: Both the baffle and the conductive plate are detachable, reducing replacement time and making cleaning or replacement easier.
[0021] Good structural stability: The adjusting bolts and guide rods are arranged alternately at equal intervals to ensure that the moving part moves smoothly along the axis, avoids skewing, and improves the accuracy and reliability of gap adjustment.
[0022] High production efficiency: The ability to be quickly adjusted and maintained reduces process setup time and optimizes overall production efficiency. Attached Figure Description
[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of an adjustable spot plating fixture according to the present invention;
[0025] Figure 2 This is an exploded view of an adjustable spot plating fixture according to the present invention.
[0026] Figure 3 This is a schematic diagram of the material strip structure in the embodiment.
[0027] In the above attached figures, 1 is the ring fixture fixing part; 11 is the ring strip baffle; 12 is the ring conductive plate; 2 is the ring fixture moving part; 21 is the adjusting bolt; 22 is the ring groove; 23 is the guide rod; 3 is the strip; 4 is the product spot plating area; and 5 is the product bending edge. Detailed Implementation
[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the description of embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0030] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0031] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0032] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0034] Example:
[0035] like Figure 1 As shown, this utility model discloses an adjustable spot plating fixture, including a ring fixture fixing part 1 and a ring fixture moving part 2. The main components of the above-mentioned utility model will be described in detail below:
[0036] like Figure 1 , Figure 2 and Figure 3 As shown, an annular material strip baffle 11 is fixedly sleeved on the outer periphery of the annular fixture fixing part 1 by screws to fix the material strip 3 and prevent the electroplating solution from overflowing; an annular conductive plate 12 is fixedly connected to one side of the annular fixture fixing part 1 by insulated screws for close contact with the product on the material strip 3. The surface of the annular conductive plate 12 is provided with a ruthenium-iridium-titanium coating to enhance corrosion resistance and conductivity stability.
[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the moving part 2 of the annular fixture and the fixed part 1 of the annular fixture are coaxially arranged. The guide rod 23 is inserted into the guide hole of the fixed part 1 to ensure that the moving part moves smoothly along the axial direction and avoids deflection. The adjusting bolt 21 is screwed into the threaded hole on one side of the annular conductive plate 12 of the fixed part 1 of the annular fixture to adjust the gap of the electroplating solution delivery channel so that the product spot plating area 4 is completely within the gap of the electroplating solution delivery channel. The adjusting bolt 21 and the guide rod 23 are arranged alternately at equal intervals along the circumference of the moving part 2 of the annular fixture to evenly distribute the adjusting force and improve the gap accuracy.
[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the annular jig moving part 2 is provided with an annular groove 22 on the side near the annular jig fixing part 1. An adjustable gap electroplating solution conveying channel is formed between the annular groove 22 and the annular conductive plate 12. The annular groove 22 is engaged with the product bending edge 5.
[0039] The method and principle of this utility model are as follows: The material strip 3 is embedded inside the annular material strip baffle 11 to ensure that the product spot plating area 4 is aligned with the electroplating solution conveying channel; the adjusting bolt 21 is rotated to change the width of the electroplating solution conveying channel so that the electroplating solution conveying channel completely covers the product spot plating area 4, and the bent edge 5 of the product is inserted into the annular slot 22 for locking.
[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the annular conductive plate 12 is fixed to the annular fixture fixing part 1 by insulating screws, and its inner periphery is a slope structure inclined towards the clamping space to ensure the stability of the electroplating solution flow.
[0041] This invention, through its innovative adjustable structure and modular design, overcomes the inherent defects of traditional spot plating fixtures, significantly improving the flexibility, stability, and production efficiency of the electroplating process. Its technical solution can be widely applied to the electroplating of precision parts in the electronics, automotive, and aerospace industries, and has broad market prospects.
[0042] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable spot plating fixture, characterized in that, include: The annular fixture fixing part (1) has an annular material belt baffle (11) on its outer periphery, and an annular conductive plate (12) is fixedly connected to one side of the annular fixture fixing part (1). The annular fixture moving part (2) is coaxially arranged with the annular fixture fixing part (1) and is connected to the annular conductive plate (12) side of the annular fixture fixing part (1) by at least two circumferentially distributed adjusting bolts (21); The annular fixture moving part (2) is provided with an annular groove (22) on the side near the annular fixture fixing part (1), and an adjustable gap electroplating solution delivery channel is formed between the annular groove (22) and the annular conductive plate (12).
2. The adjustable spot plating fixture according to claim 1, characterized in that: A guide rod (23) is provided between the adjusting bolts (21), and a guide hole is provided at the corresponding position of the annular fixture fixing part (1). The guide rod (23) slides with the guide hole.
3. The adjustable spot plating fixture according to claim 2, characterized in that: The adjusting bolts (21) and guide rods (23) are arranged alternately at equal intervals along the circumference of the moving part (2) of the annular fixture.
4. The adjustable spot plating fixture according to claim 1, characterized in that: The annular material strip baffle (11) is detachably sleeved on the outer periphery of the annular fixture fixing part (1) by means of snap-fit or screw connection.
5. An adjustable spot plating fixture according to claim 1, characterized in that: The annular conductive plate (12) is fixed to the annular fixture fixing part (1) by insulating screws, and its inner periphery is a slope structure inclined towards the clamping space.
6. An adjustable spot plating fixture according to claim 1, characterized in that: The surface of the annular conductive plate (12) is provided with a ruthenium-iridium-titanium coating.