Conductive device for improving uniformity of electroplated layer of part

Abstract

The utility model discloses a conductive device for improving the uniformity of an electroplated layer of a part, which relates to the technical field of electroplating equipment and comprises a bracket, a plating tank is arranged above the bracket, the left side and the right side above the bracket are fixedly connected with adjusting shells, the adjusting shells are rotatably connected with a rotating shaft I along the length direction of the bracket, and the rotating shaft I is connected with a rotating shaft II along the length direction of the bracket. And a driving shell is rotationally connected to the end, away from the adjusting shell, of the first rotating shaft, a second rotating shaft is rotationally connected to the driving shell in the length direction of the bracket, a frame is rotationally connected to the lower portion of the connecting rod, and driving assemblies are arranged below the two supporting plates correspondingly. The shielded height of the anode is adjusted up and down in time according to the depth of the cathode part immersed in the electrolyte of the plating bath, and dense power lines on the edge are blocked to reduce the current density of the edge, so that the influence of the current edge effect on the plating deposition of the cathode part is weakened, and the uniformity of the plating on the surface of the part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating equipment, in particular to a conductive device for improving the uniformity of electroplating layers of parts. Background Art

[0002] Electroplating is a process that uses electrochemical principles to deposit metal or alloy coatings on metal surfaces through electrolysis. The basic principle is to use electric current to reduce metal ions into metal atoms in the electrolyte and deposit them on the surface of the workpiece to form a metal coating. This process consists of four basic elements: anode, cathode, electrolyte and power supply.

[0003] In order to ensure uniform coating during production, in addition to selecting reasonable solution composition, process formula, solution stirring or cathode movement, reasonable loading amount or clamping method, temperature and current density, the most important way is to ensure the uniformity of current distribution at the cathode. The following methods are usually used: 1. According to the possible adjustment of the distance between the cathode and the anode, reduce the distance ratio between different parts of the cathode (i.e. the concave and convex parts of the parts) and the anode. 2. Use "elephant" anodes to improve current distribution. 3. Use protective cathodes and shielding protection to reduce the current density in the concentrated areas of power lines. However, these methods can only be implemented according to the corresponding "elephant" anode or protective cathode structure designed for specific parts. There are many special tooling ("elephant" anodes or protective cathodes), and the production and installation are difficult, resulting in increased production costs, reduced efficiency, and difficulty in achieving automated operation. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a conductive device for improving the uniformity of the electroplating layer of parts. The height of the anode shield is adjusted up and down in time according to the depth of the cathode part immersed in the electrolyte of the plating tank, blocking the dense electric lines at the edge to reduce the current density at the edge, thereby weakening the influence of the current edge effect on the deposition of the cathode part plating layer and improving the uniformity of the part surface plating.

[0005] The utility model also provides a conductive device for improving the uniformity of the electroplating layer of parts, comprising: a bracket, a plating tank is arranged above the bracket, an adjusting shell is fixedly connected to the left and right sides above the bracket, an adjusting rod is threadedly connected to the upper side of the adjusting shell, the adjusting rod is located at an inner side wall of one end of the adjusting shell and is fixedly connected to a first gear, the adjusting shell is rotatably connected to a rotating shaft 1 along the length direction of the bracket, the rotating shaft 1 is located at an inner side wall of one end of the adjusting shell and is fixedly connected to a second gear, and the rotating shaft 1 is rotatably connected to a driving shell at one end away from the adjusting shell, so that The first rotating shaft is located on the outer wall of one end of the driving shell and is fixedly connected to the third gear. The driving shell is rotatably connected to the second rotating shaft along the length direction of the bracket. The second rotating shaft is located on the outer wall of one end of the driving shell and is fixedly connected to the fourth gear, and the end of the second rotating shaft away from the driving shell passes through one side of the plating tank. The second rotating shaft is located on the outer wall of one end of the plating tank and is fixedly connected to two symmetrical connecting rods. A frame is rotatably connected to the bottom of the connecting rods. Two support plates are fixedly connected to the inner wall of the plating tank, and a driving assembly is arranged under the two support plates.

[0006] According to the conductive device for improving the uniformity of the electroplating layer of parts, it is characterized in that the driving assembly includes two motor driving wheels fixedly connected to the bottom of the support plate, a movable plate is meshedly connected between the two motor driving wheels, and a hook is provided on the lower side of the movable plate.

[0007] According to the conductive device for improving the uniformity of the electroplating layer of a part, it is characterized in that the first gear is meshed and connected with the second gear, and the third gear is meshed and connected with the fourth gear.

[0008] According to the conductive device for improving the uniformity of the electroplating layer of a part, it is characterized in that the frame is concave in shape, and an electroplating solution exchange hole is provided on the upper surface of the frame.

[0009] According to the conductive device for improving the uniformity of the electroplating layer of a part, it is characterized in that a liquid guide tube is fixedly connected to one side of the bracket, and the liquid guide tube runs through the bottom of the plating tank.

[0010] According to the conductive device for improving the uniformity of the electroplating layer of a part, it is characterized in that four support columns are fixedly connected below the bracket, and the four support columns are symmetrically arranged.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0013] Figure 1 This is an overall three-dimensional structural diagram of a conductive device for improving the uniformity of electroplating layers on parts according to the utility model;

[0014] Figure 2 This is a top-view stereoscopic structural diagram of an overall conductive device for improving the uniformity of electroplating layers on parts according to the utility model;

[0015] Figure 3 for Figure 2 A magnified view of the structure at center;

[0016] Figure 4 The utility model is a top view of the bracket structure of a conductive device for improving the uniformity of the electroplating layer of parts.

[0017] Legend:

[0018] 1. Bracket; 2. Plating tank; 3. Adjustment shell; 4. Adjustment rod; 5. First gear; 6. Rotating shaft one; 7. Second gear; 8. Drive shell; 9. Third gear; 10. Rotating shaft two; 11. Fourth gear; 12. Connecting rod; 13. Frame; 14. Support plate; 15. Drive assembly; 151. Motor drive wheel; 152. Moving plate; 153. Hook; 131. Plating solution exchange hole; 101. Liquid guide tube; 100. Support column. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] Reference Figure 1-4The utility model embodiment is a conductive device for improving the uniformity of the electroplating layer of parts, which includes: a bracket 1, a liquid guide tube 101 is fixedly connected to one side of the bracket 1, the liquid guide tube 101 runs through the bottom of the plating tank 2, and the electrolyte is conveniently transported to the inside of the plating tank 2 through the liquid guide tube 101, four support columns 100 are fixedly connected to the bottom of the bracket 1, and the four support columns 100 are symmetrically arranged, and the bottom of the bracket 1 is supported by the support columns 100, and the plating tank 2 is arranged above the bracket 1, and the left and right sides above the bracket 1 are fixedly connected to an adjusting shell 3, and the upper side of the adjusting shell 3 is threadedly connected with an adjusting rod 4, and the adjusting rod 4 is located at the outer side wall of one end of the adjusting shell 3 and is fixedly connected to a first gear 5, and the adjusting shell 3 is rotatably connected to a rotating shaft 6 along the length direction of the bracket 1, and the rotating shaft 6 is located at the outer side wall of one end of the adjusting shell 3 and is fixedly connected to a second gear 7, and the first gear 5 is meshed with the second gear 7, and the second gear 7 is driven to rotate by the rotation of the first gear 5, and the rotation The end of shaft 1 6 away from the adjusting shell 3 is rotatably connected to the driving shell 8, the outer side wall of the rotating shaft 1 6 at one end inside the driving shell 8 is fixedly connected to the third gear 9, the driving shell 8 is rotatably connected to the rotating shaft 2 10 along the length direction of the bracket 1, the outer side wall of the rotating shaft 2 10 at one end inside the driving shell 8 is fixedly connected to the fourth gear 11, the third gear 9 is meshed with the fourth gear 11, and the fourth gear 11 is driven to rotate by the rotation of the third gear 9, and the end of the rotating shaft 2 10 away from the driving shell 8 passes through one side of the plating tank 2, the outer side wall of the rotating shaft 2 10 at one end inside the plating tank 2 is fixedly connected to two mutually symmetrical connecting rods 12, and a frame 13 is rotatably connected to the lower part of the connecting rod 12, the shape of the frame 13 is concave, and the upper surface of the frame 13 is provided with a plating solution exchange hole 131, and the frame 13 is located below the movable plate 152, and the inner wall of the plating tank 2 is fixedly connected to two support plates 14, and a driving assembly 15 is provided below the two support plates 14.

[0021] The driving assembly 15 includes two motor driving wheels 151 fixedly connected to the bottom of the support plate 14, and a moving plate 152 is meshed and connected between the two motor driving wheels 151. A hook 153 is provided on one side below the moving plate 152, and the parts are conveniently hung by the hook 153. By providing the bracket 1, the adjustment shell 3, the driving shell 8, the connecting rod 12, the frame 13 and the driving assembly 15, it is convenient to timely adjust the shielded height of the anode up and down according to the depth of the cathode parts immersed in the electrolyte of the plating tank, block the dense power lines at the edge to reduce the current density at the edge, thereby reducing the influence of the current edge effect on the deposition of the cathode parts coating, and improving the uniformity of the coating on the surface of the parts.

[0022] Working principle: When using for the first time, hang the parts on the hook 153, and transport the electrolyte to the inside of the plating tank 2 through the liquid guide tube 101, so that the electrolyte soaks the parts and the electrolyte continues to circulate and exchange at a uniform speed. At the same time, during the soaking process, the motor drive wheel 151 can be started to drive the moving plate 152 to move up and down along the height direction of the bracket 1, so as to adjust the position of the parts in the plating tank 2, so as to help the metal ions in the electrolyte to be more evenly distributed on the cathode surface, thereby improving the uniformity of the plating layer. At the same time, when adjusting the depth of the plating tank 2, the adjusting rod 4 can be rotated to make the adjusting rod 4 drive the first gear 5 to rotate, and the first gear 5 is meshed and connected with the second gear 7, and the second gear 7 is driven to rotate by the rotation of the first gear 5. , so that the second gear 7 drives the rotating shaft 1 6 to rotate, and the rotation of the rotating shaft 1 6 drives the third gear 9 at one end to rotate, and the third gear 9 is meshed and connected with the fourth gear 11, and the rotation of the third gear 9 drives the fourth gear 11 to rotate, and the rotation of the fourth gear 11 drives the rotating shaft 2 10 to rotate, so that the two connecting rods 12 on the outer side of the rotating shaft 2 10 rotate along the central axis of the rotating shaft 2 10, and the rotation of the connecting rod 12 drives the frame 13 to rise and fall in the plating tank 2, so as to timely adjust the shielded height of the anode up and down according to the depth of the cathode part immersed in the electrolyte of the plating tank, block the dense electric lines at the edge to reduce the current density at the edge, thereby weakening the influence of the current edge effect on the deposition of the cathode part coating, and improving the uniformity of the coating on the surface of the part.

[0023] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A conductive device for improving the uniformity of a part electroplating layer, comprising: A bracket (1), characterized in that a plating tank (2) is arranged above the bracket (1), an adjusting shell (3) is fixedly connected to the left and right sides above the bracket (1), an adjusting rod (4) is threadedly connected to the top of the adjusting shell (3), the adjusting rod (4) is located at an outer side wall of one end inside the adjusting shell (3) and is fixedly connected to a first gear (5), the adjusting shell (3) is rotatably connected to a rotating shaft (6) along the length direction of the bracket (1), the rotating shaft (6) is located at an outer side wall of one end inside the adjusting shell (3) and is fixedly connected to a second gear (7), the rotating shaft (6) is rotatably connected to a driving shell (8) at one end away from the adjusting shell (3), the rotating shaft (6) is located at an outer side wall of one end inside the driving shell (8) A third gear (9) is fixedly connected, and the drive housing (8) is rotatably connected to a second rotating shaft (10) along the length direction of the bracket (1). The second rotating shaft (10) is located on the outer wall of one end inside the drive housing (8) and is fixedly connected to a fourth gear (11), and the end of the second rotating shaft (10) away from the drive housing (8) passes through one side of the plating tank (2). The second rotating shaft (10) is located on the outer wall of one end inside the plating tank (2) and is fixedly connected to two symmetrical connecting rods (12). A frame (13) is rotatably connected below the connecting rods (12). Two support plates (14) are fixedly connected to the inner wall of the plating tank (2), and a driving assembly (15) is provided below the two support plates (14).

2. A conductive device for improving the uniformity of electroplating layer of a part according to claim 1, characterized in that: The driving assembly (15) comprises two motor drive wheels (151) fixedly connected to the bottom of the support plate (14); a movable plate (152) is meshedly connected between the two motor drive wheels (151); and a hook (153) is provided on one side below the movable plate (152).

3. A conductive device for improving the uniformity of electroplating layer of a part according to claim 1, characterized in that: The first gear (5) is meshedly connected with the second gear (7), and the third gear (9) is meshedly connected with the fourth gear (11).

4. A conductive device for improving the uniformity of electroplating layer of a part according to claim 1, characterized in that: The frame (13) is concave in shape, and an electroplating solution exchange hole (131) is provided on the upper surface of the frame (13).

5. A conductive device for improving the uniformity of electroplating layer of a part according to claim 1, characterized in that: A liquid guide tube (101) is fixedly connected to one side of the bracket (1), and the liquid guide tube (101) passes through the bottom of the plating tank (2).

6. A conductive device for improving the uniformity of electroplating layer of a part according to claim 1, characterized in that: Four support columns (100) are fixedly connected below the bracket (1), and the four support columns (100) are symmetrically arranged.

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