Electroplating tool and electroplating structure
By designing an electroplating tool for springs, using the first anode wire to be arranged in the middle of the spring and cooperate with the cathode support table, the problem of poor plating effect on the inner side of the spring is solved, and the uniformity and quality of the plating thickness are improved.
Patent Information
- Application Number
- CN202420543464.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-19
AI Technical Summary
During the electrochemical deposition plating process, the inner plating of the spring is poor, and there is a large thickness difference between the outer plating, resulting in rough or uneven plating.
An electroplating tool is designed, including an anode assembly and a cathode assembly, which is arranged in the middle of the spring through the first anode line and cooperates with the first avoidance hole on the cathode support table to increase the electric field strength inside the spring, thereby increasing the thickness of the plating layer and reducing the thickness difference between the inner and outer plating layers.
By supporting the spring on the cathode support table, the first anode line is arranged in the middle of the spring, significantly increasing the thickness of the plating layer on the inner side of the spring, reducing the thickness difference between the inner and outer sides of the plating layer, improving the plating quality, and effectively preventing short circuits between the positive and negative electrodes.
Smart Images
Figure CN222594051U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of spring plating, in particular to an electroplating tool and an electroplating structure. Background Art
[0002] When electrochemical deposition technology is used for coating, the coating thickness distribution of the workpiece will be affected by the electric field distribution. The coating is thicker in areas with larger electric fields, resulting in rough crystals or burning, while the coating is thinner or even non-existent in areas with smaller electric fields.
[0003] The above phenomenon is particularly evident in the electroplating process of springs. The plating effect on the inner side of the spring is very poor, and there is a large thickness difference between the plating on the inner side of the spring and the outer side of the spring. Utility Model Content
[0004] Based on this, it is necessary to provide an electroplating tool and an electroplating structure to address the problem of poor plating effect on the inner side of the spring.
[0005] An electroplating tool, comprising:
[0006] an anode assembly including a first anode wire; and
[0007] The cathode assembly comprises a cathode support platform, wherein a first avoidance hole is formed on the cathode support platform, and the first anode wire is passed through the first avoidance hole and is in gap fit with the first avoidance hole.
[0008] The anode assembly of the utility model further comprises a second anode wire, one end of the first anode wire is fixed on the second anode wire, and a first insulating member is arranged between the cathode support platform and the second anode wire.
[0009] In the utility model, the first anode line extends along a first straight line direction, the projection of the cathode support platform in the first straight line direction is located within the projection of the first insulating member in the first straight line direction, and the cathode support platform is supported on the first insulating member.
[0010] The utility model provides a second avoidance hole on the first insulating member, the first anode wire is passed through the second avoidance hole, and a portion of the first avoidance hole projected in the first straight line direction is located outside the second avoidance hole projected in the first straight line direction.
[0011] The utility model provides a second insulating member on the cathode support platform, the second insulating member includes a first insulating ring, the first insulating ring is located on the side of the cathode support platform away from the first insulating member and is in contact with the cathode support platform, and the first insulating ring is sleeved on the first anode wire.
[0012] In the present invention, a third insulating member is also provided on the first anode wire, and the third insulating member is located on a side of the first insulating ring away from the cathode supporting platform.
[0013] According to the utility model, a first liquid inlet and outlet is provided at the edge of the first insulating ring, and a second liquid inlet and outlet is provided at the edge of the cathode support platform. The projection of the first liquid inlet and outlet in the first straight line direction and the projection of the second liquid inlet and outlet in the first straight line direction at least partially overlap.
[0014] The third insulating member of the utility model is ring-shaped, and is sleeved on the first anode wire. A third liquid inlet and outlet is provided at the edge of the third insulating member.
[0015] The cathode support platform of the utility model is provided with a second insulating member, the second insulating member includes a second insulating ring, and the second insulating ring is sleeved on the first anode wire so that the second insulating ring fills the gap between the first anode wire and the side wall of the first avoidance hole.
[0016] An electroplating structure comprises a spring and an electroplating tool, wherein one end of the spring is supported on the cathode support platform, and the first anode wire is passed through the middle of the spring.
[0017] The beneficial effects of the utility model are:
[0018] The spring is supported on a cathode support platform so that the first anode wire is passed through the middle of the spring, thereby increasing the electric field strength on the inner side of the spring, thereby increasing the coating thickness on the inner side of the spring, reducing the difference in coating thickness between the inner and outer sides of the spring, and improving the coating quality of the spring.
[0019] In addition, the first anode wire can also avoid the cathode support platform through the first avoidance hole, effectively preventing the short circuit between the positive and negative electrodes and improving the safety of the electroplating tooling. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the electroplating structure in Example 1 of the utility model;
[0021] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;
[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the cathode support platform and the first insulating member in Example 1 of the utility model;
[0023] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the electroplating structure in Example 2 of the utility model;
[0024] Figure 5This is a schematic diagram of the three-dimensional structure of the second insulating member in Embodiment 2 of the present utility model;
[0025] Figure 6 This is a crystal phase diagram of the inner and outer sides of the spring after coating in Example 1 of the utility model.
[0026] Reference numerals:
[0027] 1. Anode assembly; 11. First anode wire; 12. Second anode wire; 13. Third anode wire; 2. Cathode assembly; 21. Cathode support platform; 211. First avoidance hole; 212. Second liquid inlet and outlet; 22. First cathode wire; 3. First insulating member; 31. Second avoidance hole; 32. Fourth liquid inlet and outlet; 4. Second insulating member; 41. First insulating ring; 411. First liquid inlet and outlet; 42. Second insulating ring; 5. Third insulating member; 51. Third liquid inlet and outlet; 100. Spring. DETAILED DESCRIPTION
[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. 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 the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0034] Embodiment 1:
[0035] See also Figure 1 The present embodiment provides an electroplating structure, including a spring 100 and an electroplating tool, wherein the electroplating tool is used to plate the inner and outer sides of the spring 100. In particular, compared with the prior art, the electroplating tool of the present embodiment can increase the thickness of the coating on the inner side of the spring 100 and reduce the difference in the thickness of the coating on the inner and outer sides of the spring 100.
[0036] The electroplating tool comprises an anode assembly 1 and a cathode assembly 2.
[0037] See also Figure 2, wherein the anode assembly 1 includes a first anode wire 11, a second anode wire 12 and a third anode wire 13. One end of the third anode wire 13 is connected to the positive electrode of the power supply, and the other end of the third anode wire 13 is fixed to the second anode wire 12 to be electrically connected to the second anode wire 12. The lower end of the first anode wire 11 is fixed to the second anode wire 12 to be electrically connected to the second anode wire 12. The number of first anode wires 11 is generally at least two, and all first anode wires 11 are spaced in sequence along the axial direction of the second anode wire 12.
[0038] The cathode assembly 2 includes a cathode support 21 and a first cathode line 22. The first cathode line 22 is connected to the negative electrode of the power supply and is substantially parallel to the second anode line 12. The number of cathode support 21 is consistent with the number of first anode lines 11, so that the cathode support 21 and the first anode line 11 are in a one-to-one correspondence. All cathode support 21 are distributed in sequence along the axial direction of the first cathode line 22, and the cathode support 21 can directly contact the first cathode line 22 to achieve electrical connection.
[0039] The cathode support platform 21 is provided with a first avoidance hole 211 for the corresponding first anode wire 11 to pass through. The first anode wire 11 and the corresponding first avoidance hole 211 are clearance-matched to avoid the first anode wire 11 directly contacting the side wall of the first avoidance hole 211, thereby avoiding a direct short circuit between the third anode wire 13 and the first cathode wire 22.
[0040] A spring 100 can be arranged on each cathode support platform 21, so the increase in the number of cathode support platforms 21 can increase the number of springs 100 that are electroplated at the same time, thereby improving the electroplating efficiency. The shape of the cathode support platform 21 is configured to match the shape of the end of the spring 100, so that the end of the spring 100 can be stably supported, and the first anode wire 11 can be inserted in the middle of the spring 100. The first anode wire 11 can enhance the electric field in the middle of the spring 100, thereby increasing the thickness of the coating on the inner side of the spring 100, thereby reducing the thickness difference between the coating on the outer side of the spring 100.
[0041] In this embodiment, the first anode wire 11 extends along the first straight line direction, thereby improving the uniformity of the electric field in the middle of the spring 100. In some other embodiments, the first anode wire 11 is not strictly limited to a straight line, and the first anode wire 11 can be bent, as long as it can avoid the spring 100 to prevent the first anode wire 11 from being conducted to the cathode support platform 21 through the spring 100.
[0042] Inevitably, the partial projection of the cathode support 21 in the first straight line direction will fall on the second anode line 12. To prevent the cathode support 21 and the second anode line 12 from directly contacting and causing a short circuit, a first insulating member 3 is provided between the cathode support 21 and the second anode line 12.
[0043] In this embodiment, the first insulating member 3 can also support the cathode support platform 21. Preferably, the projection of the cathode support platform 21 in the first straight line direction is located within the projection of the first insulating member 3 in the first straight line direction, so that the first insulating member 3 can not only provide a stable supporting effect on the cathode support platform 21, but also the first insulating member 3 can fully block the cathode support platform 21 and the second anode line 12 regardless of the specific shape of the cathode support platform 21.
[0044] The first insulating member 3 is configured to avoid the first anode line 11 so as to allow the first anode line 11 to be electrically connected to the second anode line 12. Figure 3 A second avoidance hole 31 is formed on the first insulating member 3 , and the second avoidance hole 31 and the first avoidance hole 211 are opposite to and connected to each other in the first straight line direction, so as to allow the first anode wire 11 to pass through the second avoidance hole 31 .
[0045] Preferably, in this embodiment, a portion of the projection of the first avoidance hole 211 in the first straight line direction is located outside the projection of the second avoidance hole 31 in the first straight line direction. Based on the aforementioned projection relationship between the cathode support platform 21 and the first insulating member 3 in the first straight line direction, it can be known that the projection of the second avoidance hole 31 in the first straight line direction is completely located within the projection of the first avoidance hole 211 in the first straight line direction. For example, the first avoidance hole 211 and the second avoidance hole 31 are both circular holes, and the aperture of the first avoidance hole 211 is larger than the aperture of the second avoidance hole 31. Therefore, even if the first anode wire 11 shakes, it will first contact the hole wall of the second avoidance hole 31. Under the restriction of the hole wall of the second avoidance hole 31, the probability of the first anode wire 11 contacting the hole wall of the first avoidance hole 211 is reduced, and the probability of a short circuit between the first anode wire 11 and the cathode support platform 21 is reduced.
[0046] Since the first anode wire 11 is long, different parts thereof shake to different degrees when shaking, and the upper end of the first anode wire 11, that is, the end away from the second anode wire 12, shakes most violently. In order to prevent the upper end of the first anode wire 11 from contacting the upper end of the spring 100 and causing a short circuit, a third insulating member 5 is provided at the upper end of the first anode wire 11, and the third insulating member 5 can play a blocking role between the upper end of the first anode wire 11 and the upper end of the spring 100.
[0047] Preferably, the third insulating member 5 is annular, and the third insulating member 5 is sleeved on the first anode wire 11, so that the third insulating member 5 can cover the upper end of the first anode wire 11 as a whole, ensuring the barrier effect of the third insulating member 5. It is easy to understand that the third insulating member 5 will have a shielding effect on the upper end of the spring 100, hindering the entry and exit of the ionic liquid inside the spring 100. In order to reduce the shielding effect, the edge of the third insulating member 5 is provided with a third liquid inlet and outlet 51, and the third liquid inlet and outlet 51 extends along the first straight line direction. In this embodiment, the number of the third liquid inlet and outlet 51 is large, and the size is large, resulting in the cross-section of the third insulating member 5 being generally triangular.
[0048] See also Figure 6 In this embodiment, the coating thickness on the outer side of the spring 100 is 10 μm, and the coating thickness on the inner side is 8 μm, and the difference between the two thicknesses is very small.
[0049] Embodiment 2:
[0050] See also Figure 4 and Figure 5 The difference between this embodiment and the embodiment 1 is that a second insulating member 4 is provided on the cathode support platform 21, wherein the second insulating member 4 includes an integrally formed first insulating ring 41 and a second insulating ring 42. The first insulating ring 41 is located on the side of the cathode support platform 21 away from the first insulating member 3 and is in contact with the cathode support platform 21, so that the first insulating ring 41 can be sleeved on the first anode wire 11, thereby ensuring that the lower end of the spring does not contact the first anode wire 11.
[0051] In order to reduce the shielding effect of the first insulating ring 41 on the lower end of the spring, so that the ionic liquid can smoothly enter and exit the lower end of the spring, a first liquid inlet and outlet 411 is provided at the edge of the first insulating ring 41. Similarly, a second liquid inlet and outlet 212 is provided at the edge of the cathode support platform 21, and a fourth liquid inlet and outlet 32 is provided at the edge of the first insulating member 3, wherein the projection of the first liquid inlet and outlet 411 in the first straight line direction, the projection of the second liquid inlet and outlet 212 in the first straight line direction, and the projection of the fourth liquid inlet and outlet 32 in the first straight line direction at least partially overlap, so as to allow the ionic liquid to enter and exit the lower end of the spring via the fourth liquid inlet and outlet 32, the second liquid inlet and outlet 212, and the first liquid inlet and outlet 411.
[0052] The second insulating ring 42 is sleeved on the first anode wire 11 and fills the gap between the first anode wire 11 and the side wall of the first avoidance hole, thereby eliminating the possibility of contact between the side wall of the first avoidance hole and the first anode wire 11 .
[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An electroplating tool, characterized in that: include: An anode assembly (1) comprising a first anode wire (11); and The cathode assembly (2) comprises a cathode support platform (21), the cathode support platform (21) is provided with a first avoidance hole (211), the first anode wire (11) is passed through the first avoidance hole (211) and is gap-matched with the first avoidance hole (211).
2. The electroplating tool according to claim 1, characterized in that: The anode assembly (1) further comprises a second anode wire (12), one end of the first anode wire (11) is fixed to the second anode wire (12), and a first insulating member (3) is provided between the cathode support platform (21) and the second anode wire (12).
3. The electroplating tool according to claim 2, characterized in that: The first anode line (11) extends along a first straight line direction, the projection of the cathode support platform (21) in the first straight line direction is located within the projection of the first insulating member (3) in the first straight line direction, and the cathode support platform (21) is supported on the first insulating member (3).
4. The electroplating tool according to claim 3, characterized in that: A second avoidance hole (31) is provided on the first insulating member (3), the first anode wire (11) is passed through the second avoidance hole (31), and a portion of the projection of the first avoidance hole (211) in the first straight line direction is located outside the projection of the second avoidance hole (31) in the first straight line direction.
5. The electroplating tool according to claim 3, characterized in that: A second insulating member (4) is provided on the cathode support platform (21), the second insulating member (4) comprising a first insulating ring (41), the first insulating ring (41) being located on a side of the cathode support platform (21) away from the first insulating member (3) and in contact with the cathode support platform (21), the first insulating ring (41) being sleeved on the first anode wire (11).
6. The electroplating tool according to claim 5, characterized in that: A third insulating member (5) is also provided on the first anode wire (11), and the third insulating member (5) is located on a side of the first insulating ring (41) facing away from the cathode support platform (21).
7. The electroplating tool according to claim 6, characterized in that: A first liquid inlet and outlet (411) is provided on the edge of the first insulating ring (41), a second liquid inlet and outlet (212) is provided on the edge of the cathode support platform (21), and a projection of the first liquid inlet and outlet (411) in the first straight line direction and a projection of the second liquid inlet and outlet (212) in the first straight line direction at least partially overlap.
8. The electroplating tool according to claim 6, characterized in that: The third insulating member (5) is ring-shaped and is sleeved on the first anode wire (11). A third liquid inlet and outlet (51) is provided at the edge of the third insulating member (5).
9. The electroplating tool according to claim 1, characterized in that: A second insulating member (4) is provided on the cathode support platform (21), the second insulating member (4) comprising a second insulating ring (42), the second insulating ring (42) being sleeved on the first anode wire (11) so that the second insulating ring (42) fills the gap between the first anode wire (11) and the side wall of the first avoidance hole (211).
10. An electroplating structure, characterized in that: It comprises a spring (100) and the electroplating tool as claimed in any one of claims 1 to 9, one end of the spring (100) is supported on the cathode support platform (21), and the first anode wire (11) is passed through the middle of the spring (100).