Clamping jig for electroplating
By designing a clamping assembly consisting of multiple clamps, the problems of unstable fixation and insufficient space utilization of electroplating fixtures were solved, achieving stable clamping of workpieces and efficient electroplating, thus meeting the production needs of diverse products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANTOU RONGGUANG TECHNOLOGY CO LTD
- Filing Date
- 2025-05-17
- Publication Date
- 2026-05-15
AI Technical Summary
Existing electroplating fixtures lack workpiece stability, resulting in uneven coating, low production efficiency, and the hook design cannot make full use of space, has poor versatility, and is difficult to adapt to diverse products.
Design a clamping fixture that uses a clamping group composed of multiple clamps. Each clamping group consists of four clamps. The clamps have fixed arms and movable pressing arms. The clamps are staggered and have a large contact area with the mounting rod, which can clamp workpieces from multiple directions and adapt to workpieces of different shapes and sizes.
It improves the clamping stability and electroplating efficiency of workpieces, ensures uniform coating, increases the processing volume per unit time, and adapts to diverse product needs.
Smart Images
Figure CN224243282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to jigs, and more particularly to a clamping jig for electroplating. Background Technology
[0002] In the UV electroplating production process of toy shells or handicrafts, the electroplating fixture, as a key piece of equipment that supports the workpiece and ensures uniform electroplating, directly affects production efficiency and product quality. An electroplating fixture typically includes a mounting rod and multiple hooks along its length. In use, the workpiece is hung on the hooks, and the mounting rod is rotated by rotating the spray gun to electroplat the workpiece.
[0003] However, this type of electroplating fixture has several drawbacks in use. From the perspective of workpiece stability, workpieces fixed to hooks by suspension exhibit significant instability. During UV electroplating spraying, the workpiece, lacking constraint, is highly susceptible to shaking due to centrifugal force and spraying impact. This shaking leads to uneven adhesion of the spray solution, resulting in defects such as localized runs and missed areas, severely impacting product surface quality. For example, when spraying thin-walled toy shells, even slight shaking can cause the electroplating layer thickness to deviate from the process standard, reducing the yield rate.
[0004] Secondly, hooks are typically designed with a single-sided arrangement, which leaves the remaining space on the other side of the mounting rod unused, failing to fully utilize its three-dimensional load-bearing capacity. Within the fixed working space of UV electroplating and spraying equipment, this single-sided layout limits the number of workpieces that can be carried at one time. Taking a conventional cylindrical mounting rod as an example, the single-sided hook design results in its actual load-bearing area being only 1 / 4 of the theoretical total area, significantly reducing the processing volume per unit time, extending the overall production cycle, and making it difficult to meet the needs of large-scale mass production.
[0005] Meanwhile, hook-type fixtures lack versatility. Due to the significant differences in suspension requirements for workpieces of different shapes and sizes, existing hooks are difficult to adapt to diverse products. For irregularly shaped handicrafts or small precision toy parts, it is necessary to replace them with matching fixtures. In addition, for workpieces that cannot be suspended, clamp-type fixtures must be used instead, but common clamps have serious interference problems during operation. Their pressing arms are easily blocked by adjacent clamps or mounting rods when opening and closing, making it difficult for operators to apply force accurately, making clamping and releasing operations difficult, and easily resulting in inaccurate clamping positions or deviations. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a clamping fixture for electroplating. This clamping fixture can clamp different workpieces and can clamp from multiple positions of the mounting rod. The clamping is stable and easy to operate, and there will be no mutual obstruction, which is conducive to improving electroplating efficiency.
[0007] To solve the above technical problems, the following technical solution is adopted:
[0008] A clamping fixture for electroplating includes a mounting rod, characterized in that it further includes multiple clamping groups, each clamping group being arranged sequentially from top to bottom along the length direction of the mounting rod. Each clamping group includes four clamps, which are arranged sequentially on the mounting rod along its circumference, with the clamping ends of the clamps facing outwards. The positions of the four clamps in different clamping groups correspond one-to-one. Each clamp has a fixed arm and a movable pressing arm capable of controlling the opening and closing of the clamp. The fixed arm is longer than the movable pressing arm, and the inner end of the fixed arm is fixedly connected to the mounting rod.
[0009] In the aforementioned clamping fixture, by dividing the clamp's pressing arm into a longer fixed arm and a shorter movable pressing arm, when connecting the clamp to the mounting rod, the inner end of the fixed arm will not be obstructed by the movable pressing arm, making it easier for workers to connect the clamp to the mounting rod. Furthermore, since the fixed arm can also extend the position of the clamp outward, increasing the distance between the movable pressing arm and adjacent clamps, when clamping is required, the clamping end of the clamp can be opened directly by pressing the movable pressing arm, and the hand will not be obstructed by adjacent clamps during pressing. In use, each clamp can hold the workpiece to be electroplated (such as toy shells or handicrafts). Since each clamping group has four clamps, the angle between any two adjacent clamps in the same clamping group is 90°. This allows for maximizing the number of workpieces that can be clamped without interference. For longer workpieces, clamps in corresponding positions from different clamping groups can be used together. For workpieces with a certain curvature or irregular shape, different clamps from the same clamping group can be used together, and depending on the curvature, only 1 / 2 / 3 workpieces can be clamped simultaneously. This clamping fixture is convenient to use, is not obstructed by adjacent clamps, can clamp different workpieces, and can clamp from multiple positions on the mounting rod, effectively improving electroplating efficiency.
[0010] In a preferred embodiment, the four clamps in the same clamping group are divided into two upper clamps facing opposite directions and two lower clamps facing opposite directions, with the upper clamps perpendicular to the lower clamps. This structure allows the two upper clamps and two lower clamps to be staggered, and when the fixing arm is mounted on the mounting rod, it maximizes the contact area with the mounting rod, ensuring better support for the clamps when clamping workpieces and improving clamping stability.
[0011] In a further preferred embodiment, the lower edge of the upper clamp and the upper edge of the lower clamp in the same clamping group are aligned. The upper and lower clamps are parallel to each other, ensuring that the workpieces are also parallel during clamping, resulting in more uniform and consistent UV electroplating.
[0012] In a preferred embodiment, the mounting rod is a rectangular prism, and the fixing arms of the four clamps in the same clamping assembly are respectively connected to the four sides of the mounting rod. The sides where the fixing arms connect to the mounting rod are flat. The four faces of the rectangular prism match the sides of the fixing arms of the four clamps, which increases the contact area between the fixing arms and the mounting rod, thus providing better support for the clamps.
[0013] In a further preferred embodiment, the inner end of the fixing arm is welded or fixed to the mounting rod by rivets.
[0014] The beneficial effects of this utility model are as follows: this clamping fixture can clamp different workpieces and can clamp from multiple positions of the mounting rod. The clamping is stable and easy to operate, and there will be no mutual obstruction, which is conducive to improving electroplating efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the clamping fixture in an embodiment of the present invention;
[0016] Figure 2 This is a partial enlarged view of the clamping fixture in an embodiment of this utility model. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0018] like Figure 1-2 A clamping fixture for electroplating is shown, comprising a mounting rod 1 and multiple clamping groups 2. Each clamping group 2 is arranged sequentially from top to bottom along the length of the mounting rod 1. Each clamping group 2 includes four clamps 3, which are arranged sequentially on the mounting rod 1 along its circumference, with the clamping ends of the clamps 3 facing outwards. The positions of the four clamps 3 in different clamping groups 2 correspond one-to-one. Each clamp 3 has a fixed arm 4 and a movable pressing arm 5 that can control the opening and closing of the clamp 3. The fixed arm 4 is longer than the movable pressing arm 5, and the inner end of the fixed arm 4 is fixedly connected to the mounting rod 1.
[0019] In the above-mentioned clamping fixture, by dividing the pressing arm of the clamp 3 into a longer fixed arm 4 and a shorter movable pressing arm 5, when the clamp 3 is connected to the mounting rod 1, the inner end of the fixed arm 4 will not be blocked by the movable pressing arm 5, making it convenient for the worker to connect the clamp 3 to the mounting rod 1; and since the fixed arm 4 can also extend the position of the clamp 3 outward, increasing the distance between the movable pressing arm 5 and the adjacent clamp 3, when clamping is required, the clamping end of the clamp 3 can be opened directly by pressing the movable pressing arm 5, and the hand will not be blocked by the adjacent clamp 3 when pressing. In use, each clamp 3 can hold the workpiece to be electroplated (such as toy shells or handicrafts). Since there are four clamps 3 in each clamping group 2, the angle between two adjacent clamps 3 in the same clamping group 2 is 90°. When clamping workpieces, the number of clamps can be increased as much as possible without interfering with each other. For long workpieces, clamps 3 in corresponding positions in different clamping groups 2 can be used together to clamp the workpiece. For workpieces with a certain curvature or irregular shape, different clamps 3 in the same clamping group 2 can be used together to clamp the workpiece, and only 1 / 2 / 3 workpieces can be clamped at the same time depending on the curvature. This clamping fixture is convenient to use, is not blocked by adjacent clamps 3, can clamp different workpieces, and can clamp from multiple positions on the mounting rod 1, effectively improving electroplating efficiency.
[0020] The four clamps 3 in the same clamping group 2 are divided into two upper clamps 6 facing opposite directions and two lower clamps 7 facing opposite directions, with the upper clamps 6 and lower clamps 7 perpendicular to each other. This structure allows the two upper clamps 6 and two lower clamps 7 to be staggered, and when the fixing arm 4 is mounted on the mounting rod 1, it maximizes the contact area with the mounting rod 1, ensuring better support for the clamps 3 when clamping workpieces and improving clamping stability.
[0021] In the same clamping group 2, the lower edge of the upper clamp 6 and the upper edge of the lower clamp 7 are aligned. The upper clamp 6 and the lower clamp 7 are parallel to each other, and the workpieces can also be parallel to each other when clamped, resulting in more uniform and consistent coating during UV electroplating.
[0022] The mounting rod 1 is a rectangular column. The fixing arms 4 of the four clamps 3 in the same clamping group 2 are respectively connected to the four sides of the mounting rod 1. The sides of the fixing arms 4 that are connected to the mounting rod 1 are flat. The four sides of the rectangular column match the sides of the fixing arms 4 of the four clamps 3, which increases the contact area between the fixing arms 4 and the mounting rod 1, so that the clamps 3 are better supported.
[0023] The inner end of the fixed arm 4 is fixed to the mounting rod 1 by rivets.
Claims
1. A clamping fixture for electroplating, comprising a mounting rod, characterized in that: It also includes multiple clamping groups, each clamping group being arranged sequentially from top to bottom along the length of the mounting rod. Each clamping group includes four clamps, which are arranged sequentially on the mounting rod along its circumference, with the clamping ends of the clamps facing outwards. The positions of the four clamps in different clamping groups correspond one-to-one. Each clamp has a fixed arm and a movable pressing arm that can control the opening and closing of the clamp. The fixed arm is longer than the movable pressing arm, and the inner end of the fixed arm is fixedly connected to the mounting rod.
2. The clamping fixture for electroplating as described in claim 1, characterized in that: The four clamps in the same clamping group are divided into two upper clamps facing opposite directions and two lower clamps facing opposite directions, and the upper clamps are perpendicular to the lower clamps.
3. A clamping fixture for electroplating as described in claim 2, characterized in that: In the same clamping group, the lower edge of the upper clamp and the upper edge of the lower clamp are on the same straight line.
4. A clamping fixture for electroplating as described in claim 1, characterized in that: The mounting rod is a rectangular column, and the fixing arms of the four clamps in the same clamping group are respectively connected to the four sides of the mounting rod. The side where the fixing arm connects to the mounting rod is a plane.
5. A clamping fixture for electroplating as described in claim 4, characterized in that: The inner end of the fixed arm is welded to or fixed to the mounting rod by rivets.