A groove milling and selective plating jig

By using a plug-in connection structure and a symmetrical feeding hole design, combined with ceramic rod support and fiberglass board material, the problems of uneven electroplating solution flow and inconvenient disassembly and assembly in traditional fixtures are solved. This achieves rapid disassembly and assembly of high-efficiency electroplating fixtures and uniform plating, thereby improving production efficiency and product quality.

CN224467973UActive Publication Date: 2026-07-07KUNSHAN HUAHONGFA ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN HUAHONGFA ELECTRONICS CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional plating fixtures suffer from problems such as uneven flow of plating solution, inconvenience in disassembling and assembling fixtures, and difficulty in maintenance, resulting in quality defects such as inconsistent plating thickness, missed plating or nodules. In addition, bolt connections are prone to wear and contamination of the plating solution.

Method used

It adopts a plug-in connection structure and symmetrical feeding hole design, combined with ceramic rod support, to realize dynamic circulation of electroplating solution and quick assembly and disassembly. The support base is made of fiberglass board to improve corrosion resistance and strength.

Benefits of technology

It improves the assembly efficiency and maintenance convenience of electroplating fixtures, enhances coating uniformity, reduces the risk of missed plating and nodule formation, and improves production continuity and product yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of slot milling and selective plating tool, including support seat, backing plate and connecting seat.The top of support seat is provided with material passing groove for shielding material belt terminal, multiple material supplement holes are evenly arranged in the sidewall of material passing groove, for promoting electroplating solution circulation.The front end of backing plate is provided with convex head structure, and the connecting seat is provided with groove matched therewith, forming pluggable connection, achieving quick disassembly and assembly.The two ends of material passing groove are provided with V-shaped guide port for facilitating material belt introduction, and the bottom is provided with transversely penetrating ceramic rod for supporting material belt and facilitating bubble discharge.Support seat is made of glass fiber plate material, which is corrosion-resistant and high-strength.Material passing groove is detachable design, facilitating replacement.The utility model effectively improves the flowability of electroplating solution, improves the uniformity of plating layer and the maintenance efficiency of tool.
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Description

Technical Field

[0001] This utility model relates to the field of electroplating fixture technology, and in particular to a milling groove selective plating fixture. Background Technology

[0002] In the field of electronic component manufacturing, selective electroplating is a common surface treatment process. It involves locally plating specific terminal areas on a strip to meet performance requirements such as conductivity, corrosion resistance, or weldability. Traditional selective plating fixtures often employ a fixed feed tank structure, with the tank typically connected to supporting components by bolts. In practical applications, the bottom of the feed tank often lacks an effective circulation channel for the plating solution, easily leading to stagnant flow and uneven ion concentration. This results in inconsistent plating thickness, incomplete plating, or nodule formation, among other quality problems. Furthermore, bubbles and residues precipitated during the plating process are difficult to remove, further exacerbating plating defects. Simultaneously, because the fixture requires frequent cleaning to maintain tank cleanliness, the bolted connection method is not only inefficient and cumbersome to install and remove, but also prone to thread wear, bolt loosening, and even falling into the plating tank after repeated installations and removals, causing contamination and equipment malfunctions, severely impacting production continuity and product yield.

[0003] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a milling groove plating fixture to solve the above problems.

[0004] 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 for the convenience of those skilled in the art to understand it. 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

[0005] To overcome the shortcomings of the prior art, the present invention aims to disclose a milling groove plating fixture to solve the problems of uneven electroplating solution flow, inconvenient fixture disassembly and assembly, and difficult maintenance in the prior art.

[0006] This utility model discloses a milling groove selective plating fixture, including a support base, a support plate and a connecting seat at the bottom of the support base, and a material passage groove for selective plating and shielding the terminals on the material strip along its length direction at the top of the support base. Multiple material replenishment holes are evenly opened on both sides of the material passage groove along its extension direction. The material replenishment holes penetrate through the side wall of the support base and connect to the outside of the material passage groove. The front end of the support plate is provided with a protruding head structure, and the connecting seat is provided with a groove that mates with the protruding head structure. The protruding head structure is detachably installed in the groove.

[0007] Preferred technical solution: V-shaped guide openings are provided at both ends of the material chute.

[0008] Preferred technical solution: The feeding holes on both sides of the feed chute are symmetrically arranged.

[0009] Preferred technical solution: A ceramic rod is provided at the bottom of the material conveying trough, which extends horizontally through both sides of the material conveying trough, and the top of its outer circumference is higher than the bottom of the material conveying trough.

[0010] Preferred technical solution: The support base is made of fiberglass board.

[0011] Preferred technical solution: The feed chute is detachably installed on the top of the support base, which facilitates quick switching of the feed chute according to different feed belt widths.

[0012] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0013] This invention utilizes a plug-in connection structure to achieve rapid assembly and disassembly of the tray and connector, significantly improving the assembly efficiency and maintenance convenience of the fixture, and avoiding the problems of wear, loosening, and contamination of the electroplating solution caused by traditional bolt connections. The symmetrically arranged replenishment holes on both sides of the feed trough effectively promote the circulation and renewal of the electroplating solution within the tank, reducing dead zones and uneven ion concentration, thereby significantly improving coating uniformity and reducing the risk of defects such as incomplete plating and nodule formation. The ceramic rod provides stable support for the feed strip and facilitates the removal of air bubbles and residues. The support base is made of fiberglass board, which is corrosion-resistant, high-strength, and suitable for continuous electroplating environments. The overall structure of this invention is simple and reasonable, easy to clean and replace components, greatly improving production continuity and product yield, and is suitable for the high-precision selective plating processes required for electronic components. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a front view of a milling groove plating fixture according to the present invention;

[0016] Figure 2 This is a top view of a milling groove plating fixture according to the present invention;

[0017] Figure 3 This is a side view of a milling groove plating fixture according to the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the tray in this utility model.

[0019] In the above attached diagrams, 1 is the support base; 11 is the material feed trough; 11a is the V-shaped guide port; 12 is the material feeding hole; 13 is the ceramic rod; 2 is the support plate; 21 is the protruding head structure; 3 is the connecting seat; and 31 is the groove. Detailed Implementation

[0020] 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.

[0021] 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 purposes of describing 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.

[0022] In this application, the terms "upper," "lower," "left," "right," "front," "back," "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 this utility model 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.

[0023] Furthermore, in addition to indicating location 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.

[0024] 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 it can be 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 according to the specific circumstances.

[0025] 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.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a milling groove plating fixture, including a support base 1, a support plate 2 and a connecting seat 3 at the bottom of the support base 1. The main components of the above utility model will be described in detail below:

[0027] The top of the support base 1 is provided with a material passage trough 11 for selective plating and shielding of the terminals on the material strip along its length direction. Multiple material replenishment holes 12 are evenly opened on both sides of the material passage trough 11 along its extension direction. The material replenishment holes 12 penetrate through the side wall of the support base 1 and connect to the outside of the material passage trough 11, so that the electroplating solution can flow into the tank from the outside, forming dynamic renewal and circulation, effectively avoiding local uneven concentration or liquid flow stagnation, improving the quality and thickness uniformity of the electroplating layer, and avoiding local defects.

[0028] The front end of the support plate 2 is provided with a protruding head structure 21, and the connecting seat 3 is provided with a groove 31 that mates with the protruding head structure 21. The protruding head structure 21 is detachably installed in the groove 31. This structure replaces the traditional bolt fixing method, realizing quick assembly and disassembly. During operation, simply insert the protruding head structure 21 into the groove 31 to complete the positioning and fixing. During disassembly, it can be pulled out directly, which greatly improves maintenance efficiency and avoids problems such as thread wear, bolt loss, or contamination of electroplating solution.

[0029] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the feed chute 11 has V-shaped guide openings 11a at both ends. This structure facilitates automatic alignment of the feed strip as it passes through the feed chute 11, reducing jamming and skewing.

[0030] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the feeding holes 12 on both sides of the feed trough 11 are symmetrically arranged. This further ensures the continuity of liquid flow within the shielded areas on both sides of the feed belt.

[0031] In some embodiments, such as Figure 1 , Figure 2 and Figure 3As shown, a ceramic rod 13 is provided at the bottom of the feed trough 11. The ceramic rod 13 extends laterally through both side walls of the feed trough 11, and the top of its outer circumference is higher than the bottom surface of the feed trough 11. The ceramic material has excellent corrosion resistance and low surface energy, which can not only stably support the feed strip, but also facilitate the smooth discharge of bubbles and precipitates generated during the electroplating process along its surface, avoiding adhesion to the coating surface and causing defects.

[0032] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the support base 1 is made of fiberglass board. This material has high mechanical strength, resistance to electroplating solution corrosion, and good insulation properties, enabling it to work stably for a long time in humid and chemically corrosive environments, thus extending the service life of the fixture.

[0033] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the feed chute 11 is detachably mounted on the top of the support base 1. Users can quickly replace the feed chute with the appropriate specification according to different strip widths or electroplating requirements, improving the versatility of the fixture and the flexible response capability of the production line.

[0034] Working principle: such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in actual electroplating operations, the material strip enters from one end of the feed trough 11, is guided by the V-shaped guide port 11a, and moves along the tank body. The electroplating solution is continuously injected from outside the tank through the replenishment hole 12, forming a transverse flow, effectively renewing the liquid in the tank and maintaining a uniform ion concentration. It should be noted that the main purpose of the replenishment hole 12 is to balance the flow difference between the upper and lower ends of the feed trough 11. Although the replenishment hole 12 also increases the flow rate of the electroplating solution in the feed trough, there is still a significant difference between its flow rate and that of the unshielded area, meeting the processing requirements of the different coating thicknesses between the shielded and unshielded areas. The ceramic rod 13 serves to support the material strip and prevent it from collapsing, while also promoting the rise of bubbles and the discharge of residues. When cleaning or replacing the feed trough is required, the operator only needs to gently push the support plate 2 forward to disengage the protruding head structure 21 from the groove 31, and then remove the entire feed assembly for maintenance or replacement. After completion, it can be reinserted for use. The entire process requires no tools and is completed within seconds.

[0035] Through the above-mentioned structural design and material optimization, this utility model achieves efficient assembly and disassembly of electroplating fixtures, excellent liquid flow circulation, and stable coating support, significantly improving the quality and efficiency of selective electroplating processes.

[0036] 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. A milling and plating fixture, comprising a support base (1), wherein the bottom of the support base (1) is provided with a tray (2) and a connecting seat (3), characterized in that: The top of the support base (1) is provided with a material passage groove (11) for selective plating and shielding of the terminals on the strip along its length direction. Multiple material replenishment holes (12) are evenly opened on both sides of the material passage groove (11) along its extension direction. The material replenishment holes (12) penetrate the side wall of the support base (1) and connect to the outside of the material passage groove (11). The front end of the tray (2) is provided with a protruding head structure (21). The connecting seat (3) is provided with a groove (31) that mates with the protruding head structure (21). The protruding head structure (21) is pluggably disposed in the groove (31).

2. The milling groove plating fixture according to claim 1, characterized in that: The feed trough (11) is provided with V-shaped guide ports (11a) at both ends.

3. The milling groove plating fixture according to claim 1, characterized in that: The feeding holes (12) on both sides of the feed trough (11) are symmetrically arranged.

4. The milling groove plating fixture according to claim 1, characterized in that: A ceramic rod (13) is provided at the bottom of the feed trough (11). The ceramic rod (13) extends laterally through both sides of the feed trough (11), and the top of its outer circumference is higher than the bottom surface of the feed trough (11).

5. The milling groove plating fixture according to claim 1, characterized in that: The support base (1) is made of fiberglass board.

6. The milling groove plating fixture according to claim 1, characterized in that: The feed chute (11) is detachably mounted on the top of the support base (1).