Tool clamp for electroplating
By setting up a sealing sleeve on the grippers of the electroplating tool fixtures and using hollow channels to communicate with the negative pressure equipment, the problem of metal plating in the prior art in the grippers is solved, the production cost is reduced, and process stability and product yield are improved.
Patent Information
- Application Number
- CN202420396698.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The contact clamps of existing electroplating fixtures will also be plated with metal when working, resulting in a decrease in electroplating stability and yield. They need to be deplating through chemical cleaning liquid or electrolytic methods, which increases production cost and process complexity.
A tool fixture for electroplating is designed. The fixture body has a gripping point for clamping the article to be plated and a sealing sleeve is provided on the gripping point, which is used to isolate the gripping point from the plating solution, thereby avoiding metal plating on the gripping point. The fixture body can be selected as a hollow structure, which communicates with the negative pressure device through the hollow channel, further ensuring the close contact between the seal sleeve and the clamp point.
By installing a sealing sleeve on the grip point, the contact between the grip point and the electroplating solution is avoided, the production cost of deplating is reduced, and the process stability and product yield are improved. The connection between the hollow channel and the negative pressure device ensures effective sealing of the sealing sleeve and avoids the contact problem between the plating solution and the grip point.
Smart Images
Figure CN222631600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electroplating, in particular to a tooling fixture used for electroplating. Background Art
[0002] Electroplating is widely used in PCB, semiconductor and photovoltaic fields. The basic elements of electroplating are that the object or area to be plated must be conductive and connected to the cathode, and then it can be plated with metal when it comes into contact with the plating solution. This process requires the use of a fixture to load the sample to be plated and energize it, but the contact points of the fixture will also be plated with metal when it is working, thus affecting the stability and yield of the electroplating.
[0003] At present, the metal plated on the clamping point is generally stripped by chemical cleaning solution or electrolysis, which increases the production cost and the complexity of the process. Utility Model Content
[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that the contact points of the tooling fixture will also be plated with metal when working, and the metal plated on the clamping points will be stripped off by chemical cleaning liquid or electrolysis, which increases both the production cost and the complexity of the process, thereby providing a tooling fixture for electroplating.
[0005] In order to solve the above technical problems, the utility model provides a tooling fixture for electroplating, comprising: a fixture body, wherein the fixture body has a clamping point for clamping an object to be plated;
[0006] A sealing sleeve is sleeved on the clamping point, and is used to isolate the clamping point from the electroplating solution, thereby preventing the clamping point from being plated with metal.
[0007] Optionally, the clamp body has at least one hollow channel, one end of the hollow channel is connected to the clamping point, and the other end of the hollow channel is suitable for connecting to a negative pressure device.
[0008] Optionally, the clamp body is a hollow structure, and the hollow channel is formed by the hollow part of the clamp body.
[0009] Optionally, one end of the hollow channel for connecting to a negative pressure device is located on the bottom surface or the top surface of the clamp body.
[0010] Optionally, the sealing sleeve is detachably arranged on the clamping point.
[0011] Optionally, the sealing sleeve is installed on the clamping point through a threaded structure.
[0012] Optionally, the outer side surface of the clamping point is provided with a forward thread structure, and the inner side surface of the sealing sleeve has a reverse thread structure that matches the forward thread structure, or the outer side surface of the clamping point is provided with a reverse thread structure, and the inner side surface of the sealing sleeve has a forward thread structure that matches the reverse thread structure.
[0013] Optionally, a convex structure is provided on the clamping point, and the sealing sleeve has a groove structure matching with the convex structure.
[0014] Optionally, the sealing sleeve is a circular closed sleeve.
[0015] Optionally, the sealing sleeve is a rubber sleeve.
[0016] The technical solution of this utility model has the following advantages:
[0017] 1. The tooling fixture for electroplating provided by the utility model has a sealing sleeve on the clamping point, which can block the contact between the clamping point and the electroplating solution, thereby preventing the clamping point from being plated with metal. The clamping point does not need to be de-plated, which effectively reduces the additional production cost caused by de-plating. In addition, since the clamping point will not be plated with metal, the process stability can be improved and the product yield can be improved.
[0018] 2. The tooling fixture for electroplating provided by the utility model has a hollow channel that can connect the clamping point with the negative pressure equipment. The negative pressure equipment draws out the gas between the sealing sleeve and the clamping point. The sealing sleeve fits tightly with the clamping point under the action of external air pressure, avoiding the contact problem between the electroplating liquid and the clamping point caused by poor sealing.
[0019] 3. The tooling fixture for electroplating provided by the utility model has a sealing sleeve that is detachably mounted on a clamping point. When the seal is aged or damaged, the sealing sleeve can be quickly replaced to ensure the sealing effect of the sealing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 This is a front view of a fixture for electroplating provided in a first embodiment of the utility model;
[0022] Figure 2 for Figure 1 An enlarged view of the middle fixture body;
[0023] Figure 3 for Figure 2 Exploded diagram of
[0024] Figure 4 for Figure 2 Bottom view of
[0025] Figure 5 for Figure 2 A cross-sectional view of
[0026] Figure 6 for Figure 2 Schematic diagram of a second embodiment of the clamp body.
[0027] Description of reference numerals:
[0028] 1. Clamp body; 2. Clamping point; 3. Sealing sleeve; 4. Hollow channel. DETAILED DESCRIPTION
[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0033] like Figures 1 to 3 As shown, a specific implementation of the tooling fixture for electroplating provided in this embodiment includes: a fixture body 1 and a sealing sleeve 3, the fixture body 1 has a clamping point 2 for clamping the object to be plated, the material used for the fixture body 1 is conductive titanium material, and a layer of insulating coating is applied to other areas on the surface of the fixture body 1, and only the clamping point 2, which is the energized part in contact with the object to be plated, is exposed metal so that the cathode current can be normally passed into the object to be plated, and the sealing sleeve 3 is sleeved on the clamping point 2, and the sealing sleeve 3 is used to isolate the clamping point 2 from the electroplating solution, thereby preventing the clamping point 2 from being plated with metal.
[0034] The tooling fixture for electroplating provided in this embodiment has a sealing sleeve 3 sleeved on the clamping point 2. The sealing sleeve 3 can block the contact between the clamping point 2 and the electroplating solution, thereby preventing the clamping point 2 from being plated with metal. There is no need to de-plate the clamping point 2, which effectively reduces the additional production cost caused by de-plating. In addition, since the clamping point 2 will not be plated with metal, the process stability can be improved and the product yield can be increased.
[0035] like Figure 4 , Figure 5 As shown, in the fixture for electroplating provided in this embodiment, the fixture body 1 has at least one hollow channel 4. In this embodiment, the number of hollow channels 4 is one, one end of the hollow channel 4 is connected to the clamping point 2, and the other end of the hollow channel 4 is suitable for connecting to a negative pressure device, which can be a vacuum pump. The hollow channel 4 can connect the clamping point 2 with the negative pressure device, and the negative pressure device extracts the gas between the sealing sleeve 3 and the clamping point 2. The sealing sleeve 3 fits tightly with the clamping point 2 under the action of the external air pressure to avoid the contact problem between the electroplating solution and the clamping point 2 caused by poor sealing. In addition, as an alternative embodiment, the other end of the hollow channel 4 can also be used to connect a positive pressure device, which can be a compressor. The positive pressure device passes clean gas between the clamping point 2 and the sealing sleeve 3 through the hollow channel 4, thereby avoiding contact between the clamping point 2 and the electroplating solution.
[0036] like Figure 4 , Figure 5 As shown, in the fixture for electroplating provided in this embodiment, the fixture body 1 is a hollow structure, and the hollow channel 4 is formed by the hollow part of the fixture body 1. The hollow channel 4 is formed synchronously during the manufacture of the fixture body 1, and no subsequent additional processing is required, and the manufacturing process is simpler. In addition, as an alternative embodiment, the fixture body 1 can also be a solid structure, and the hollow channel 4 is opened inside by other machinery.
[0037] like Figure 4As shown, in the fixture for electroplating provided in this embodiment, one end of the hollow channel 4 used for connecting with the negative pressure device is located on the bottom surface of the fixture body 1. The bottom surface area of the fixture body 1 is large, and the gap that can be formed is also larger, which can improve the working efficiency of the negative pressure device. In addition, as an alternative embodiment, the end of the hollow channel 4 used for connecting with the negative pressure device can also be located on the top surface or side surface of the fixture body 1.
[0038] like Figure 3 As shown, in the fixture for electroplating provided in this embodiment, the sealing sleeve 3 is detachably arranged on the clamping point 2. When the seal is aged or damaged, the sealing sleeve 3 can be quickly replaced to ensure the sealing effect of the sealing sleeve 3. In addition, as an alternative embodiment, the sealing sleeve 3 can also be fixed on the clamping point 2 by gluing. When replacement is required, the fixture body 1 can be replaced together.
[0039] like Figure 6 As shown, in the fixture for electroplating provided in this embodiment, the sealing sleeve 3 is installed on the clamping point 2 through a threaded structure, the threaded structure is installed firmly, and the sealing effect is good.
[0040] like Figure 6 As shown, in the fixture for electroplating provided in this embodiment, the outer side surface of the clamping point 2 is provided with a positive thread structure, and the inner side surface of the sealing sleeve 3 has a directional thread structure that matches the positive thread structure, and the connection between the sealing sleeve 3 and the clamping point 2 can be achieved through the cooperation of the two thread structures. In addition, as an alternative embodiment, the outer side surface of the clamping point 2 can also be a reverse thread structure, and the inner side surface of the sealing sleeve 3 is a positive thread structure that matches the reverse thread structure.
[0041] like Figure 3 As shown, in the fixture for electroplating provided in this embodiment, a convex structure is provided on the clamping point 2, and the sealing sleeve 3 has a groove structure matched with the convex structure, and the connection between the sealing sleeve 3 and the clamping point 2 can be achieved through the cooperation of the groove structure and the convex structure. In addition, as an alternative implementation, a groove structure can also be provided on the clamping point 2, and a convex structure matched with the groove structure can be provided on the sealing sleeve 3.
[0042] like Figure 3 , Figure 6 As shown, in the fixture for electroplating provided in this embodiment, the sealing sleeve 3 is a circular closed sleeve, which is suitable for most clamping points 2 and has a wide range of applications. In addition, as an alternative embodiment, the sealing sleeve 3 can also be a square or polygonal special-shaped sleeve.
[0043] like Figure 3 , Figure 6As shown, in the fixture for electroplating provided in this embodiment, the sealing sleeve 3 is a rubber sleeve, and the material selected is a rubber material, which has good flexibility, is easy to install, and has a good sealing effect. In addition, as an alternative embodiment, the material of the sealing sleeve 3 can also be a flexible material such as polyvinyl alcohol, polyester, polyimide, polyethylene naphthalate, etc.
[0044] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the present utility model.
Claims
1. A fixture for electroplating, characterized in that: include: A clamp body (1), wherein the clamp body (1) has a clamping point (2) for clamping an object to be plated; A sealing sleeve (3) is sleeved on the clamping point (2), and the sealing sleeve (3) is used to isolate the clamping point (2) from the electroplating solution, thereby preventing the clamping point (2) from being plated with metal.
2. The fixture for electroplating according to claim 1, characterized in that: The clamp body (1) has at least one hollow channel (4), one end of the hollow channel (4) is connected to the clamping point (2), and the other end of the hollow channel (4) is suitable for connecting to a negative pressure device.
3. The fixture for electroplating according to claim 2, characterized in that: The clamp body (1) is a hollow structure, and the hollow channel (4) is formed through the hollow part of the clamp body (1).
4. The fixture for electroplating according to claim 2, characterized in that: One end of the hollow channel (4) used for connecting to the negative pressure device is located on the bottom surface or the top surface of the clamp body (1).
5. The fixture for electroplating according to claim 1, characterized in that: The sealing sleeve (3) is detachably arranged on the clamping point (2).
6. The fixture for electroplating according to claim 5, characterized in that: The sealing sleeve (3) is installed on the clamping point (2) via a threaded structure.
7. The fixture for electroplating according to claim 6, characterized in that: The outer side surface of the clamping point (2) is provided with a forward thread structure, and the inner side surface of the sealing sleeve (3) has a reverse thread structure that matches the forward thread structure, or the outer side surface of the clamping point (2) is provided with a reverse thread structure, and the inner side surface of the sealing sleeve (3) has a forward thread structure that matches the reverse thread structure.
8. The fixture for electroplating according to claim 5, characterized in that: The clamping point (2) is provided with a convex structure, and the sealing sleeve (3) has a groove structure matching the convex structure.
9. The fixture for electroplating according to any one of claims 1 to 8, characterized in that: The sealing sleeve (3) is a circular closed sleeve.
10. The fixture for electroplating according to claim 9, characterized in that: The sealing sleeve (3) is a rubber sleeve.