A device for batch electroplating of deep groove hook-shaped thin parts

Abstract

The utility model discloses a device for deep groove takes hook thin part batch electroplating, this device for deep groove takes hook thin part batch electroplating includes: frame, electroplating groove and a plurality of clamps, electroplating groove includes tank body, a plurality of anode units and a plurality of spray pipes, a plurality of anode units arrange and arrange in the surface of the two sides inner wall of tank body, a plurality of spray pipes equidistance arrange and arrange in the two sides inner wall of tank body, and a plurality of spray pipes are set up with a plurality of anode units respectively, every anode unit includes a plurality of parallel anodes and a plurality of anode baskets, a plurality of anodes are set up mutually parallel and equidistance arrange and arrange in the inside of the corresponding side inner wall of tank body, every anode basket is set up to the outside of corresponding anode, based on this, a plurality of spray pipes are set up with a plurality of anode baskets respectively. The device for deep groove takes hook thin part batch electroplating is installed multiple, dense and direction adjustable spray pipe in the inside of tank body to produce the strong liquid flow of preset direction, and the penetration ability of plating solution to deep groove is strengthened.

Description

Technical Field

[0001] This utility model relates to the field of electroplating equipment technology, and in particular to a device for batch electroplating of thin parts with hooks in deep grooves. Background Technology

[0002] Electroplating is a surface treatment technology that forms a metal or alloy coating on a substrate surface through electrochemical deposition. It is widely used in industries such as automotive, electronics, aerospace, and hardware, endowing workpieces with properties such as corrosion resistance, wear resistance, conductivity, and decoration. Electroplating equipment is the core carrier for realizing this process, and its technological development has always revolved around four core goals: uniformity, efficiency, environmental friendliness, and intelligence. Early electroplating tanks had simple structures (such as rectangular open tanks) and relied on manual loading and unloading with hangers, resulting in problems such as uneven coating thickness (edge ​​effect), unstable solution composition, and high energy consumption. With the widespread use of precision electronic components and parts with complex geometric structures (such as deep tanks and micro-holes), traditional equipment could not meet the requirements for high uniformity plating (TP value ≥ 80%), driving the development of optimized anode layout (such as shaped anodes), enhanced solution circulation (jet, ultrasonic stirring), and pulse power supply technology. The key technology modules of existing electroplating equipment include tank system, power supply system, anode system, circulation filtration system and environmental protection auxiliary system. Among them, the tank system usually adopts a deep tank design with multi-directional jet nozzles (to solve deep hole plating) and an overflow weir design to ensure liquid level stability. The anode system generally uses soluble anodes (copper balls, nickel angles) with titanium baskets, supplemented by anode bags to filter residues.

[0003] However, for the batch electroplating of thin parts with hooks in deep tanks, the existing electroplating equipment is not capable enough to handle the deep tank parts, making it difficult to drive the plating solution to fully penetrate into the deep tank to form a uniform coating, resulting in poor electroplating effect for such parts. Utility Model Content

[0004] Therefore, it is necessary to provide a device for batch electroplating of thin, hooked parts in deep tanks, addressing the technical problem that existing electroplating equipment is insufficient in processing parts for deep tank plating.

[0005] An apparatus for mass electroplating of thin parts with hooks in deep grooves includes a frame, an electroplating tank, and several clamps. The electroplating tank is located at the bottom of the frame, and the clamps are located on the top side of the electroplating tank and connected to the frame. The clamps are arranged at equal intervals along the length of the electroplating tank.

[0006] The electroplating tank includes a tank body, several anode units, and several spray nozzles. The tank body is installed at the bottom of the frame. Several anode units are arranged at equal intervals along the length of the tank body on the inner wall surfaces on both sides of the tank body. Several spray nozzles are arranged at equal intervals along the length of the tank body on the inner wall surfaces on both sides of the tank body and are movably connected to the corresponding inner wall surfaces, so that the angle of each spray nozzle relative to the tank body can be adjusted. Several spray nozzles are arranged alternately with several anode units, thereby forming a compactly arranged anode system and a plating solution spraying mechanism.

[0007] Each anode unit includes several parallel anodes and several anode baskets. The anodes are arranged parallel to each other and equidistantly on the inner side of the corresponding side wall of the tank. The several anode baskets correspond one-to-one with the several anodes, and each anode basket is fitted onto the outside of the corresponding anode to support the anode. Based on this, several nozzles are arranged alternately with several anode baskets to ensure the uniformity and tightness of the arrangement of each anode and each nozzle inside the tank.

[0008] In one embodiment, each of the anode baskets is configured as a chamber structure with an open top, wherein the sidewall of the anode basket facing the inside of the tank has a plurality of through holes.

[0009] In one embodiment, the sidewall of the anode basket with through holes is configured as a movable perforated plate and is detachably mounted to the side of the anode basket facing the inside of the tank.

[0010] In one embodiment, the anode basket is provided with grooves on the two inner wall surfaces of the movable orifice plate, and the movable orifice plate slides to the corresponding side of the anode basket through the grooves on both sides.

[0011] In one embodiment, the movable orifice plates of each of the above-described anode baskets may be configured as a plurality of plates stacked in parallel.

[0012] In one embodiment, each of the above anodes is configured as an L-shaped folded plate structure, with one folded end of the anode housed inside the corresponding anode basket.

[0013] In one embodiment, each of the above-described nozzles is connected to the inner wall of the tank via a connecting plate disposed between two adjacent anode baskets.

[0014] In one embodiment, the connecting plate is provided with a clamping part at one end facing the inside of the tank, and the clamping part clamps the top end of the corresponding nozzle.

[0015] In one embodiment, the bottom end of the nozzle is rotatably connected to the bottom wall of the tank.

[0016] In one embodiment, the aforementioned rack is provided with a mounting frame, which is disposed on the top side of the tank and connected to the rack body. The mounting frame extends from one end of the rack body to the other end along the length of the rack body.

[0017] In one embodiment, the aforementioned clamps are arranged at equal intervals along the mounting direction of the mounting frame.

[0018] In one embodiment, each of the above-described clamps is provided with two clamping arms driven by a lead screw.

[0019] In one embodiment, each of the clamping arms described above is provided with a three-finger gripper.

[0020] The aforementioned apparatus for batch electroplating of thin, hooked parts in deep tanks utilizes multiple, densely packed, and directionally adjustable nozzles installed inside the tank to generate a strong liquid flow in a preset direction. This flow directly impacts the thin, hooked parts in the deep tank, thereby enhancing the penetration of the plating solution into the deep tank and improving the uniformity of the liquid spray onto the hook portion of the part. Simultaneously, through a multi-point distributed anode system, anodes are densely arranged on both sides of the inner wall of the tank, minimizing the distance between the anode and cathode, improving the current distribution inside the deep tank and at the groove of the part, and improving the uniformity of the plating layer. Specifically: (1) The high-density, gridded anode layout greatly shortens the distance between the anode and cathode. Especially for parts located in the middle of the fixture, the electric field lines are more evenly distributed, reducing the risk of plating leakage on the inner wall of the deep tank and the central area of ​​the part, as well as burning of the edge / protruding area. For thin parts and deep tank structures, the uniform current distribution can avoid problems such as uneven plating thickness and poor adhesion. (2) The nozzles and anode units are arranged alternately, forming a uniform and dense plating solution jet flow field in the entire electroplating area. The high-speed plating solution sprayed out can effectively impact the surface of the parts, especially the inner wall of the deep tank. The dense nozzle layout ensures that there is no dead zone in the tank. Forced convection significantly improves the mass transfer efficiency and maintains the relative uniformity of plating solution composition and temperature inside the deep tank. (3) The equidistant, alternating, and close arrangement of the anode, anode basket, and nozzle maximizes the utilization of the limited space and ensures that the anode and liquid flow conditions are highly consistent in any cross section along the length of the tank, providing a relatively uniform electrochemical environment for the entire electroplating area. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the apparatus for batch electroplating of thin parts with deep groove hooks in one embodiment; Figure 2 This is a schematic diagram of the apparatus for batch electroplating of thin parts with deep groove hooks in one embodiment; Figure 3 for Figure 2A schematic cross-sectional view of part AA in the illustrated embodiment; Figure 4 This is a partial structural schematic diagram of an apparatus for batch electroplating of thin parts with hooks in a deep groove, according to one embodiment. Figure 5 This is a schematic diagram of the fixture structure of an apparatus for batch electroplating of thin parts with hooks in a deep groove, according to one embodiment. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Please see Figures 1 to 5This utility model discloses an apparatus 1 for batch electroplating of thin parts with hooks in deep grooves. The apparatus 1 for batch electroplating of thin parts with hooks in deep grooves includes a frame 10, an electroplating tank 20 and several clamps 30. The electroplating tank 20 is disposed at the bottom of the frame 10, and the several clamps 30 are disposed on the top side of the electroplating tank 20 and connected to the frame 10. The several clamps 30 are arranged at equal intervals along the length direction of the electroplating tank 20. Specifically, the electroplating tank 20 includes a tank body 21, several anode units 22, and several nozzles 23; the tank body 21 is installed at the bottom of the frame 10; several anode units 22 are arranged at equal intervals along the length of the tank body 21 on the inner wall surfaces on both sides of the tank body 21; several nozzles 23 are arranged at equal intervals along the length of the tank body 21 on the inner wall surfaces on both sides of the tank body 21, and are movably connected to the corresponding inner wall surfaces, so that each nozzle 23 can be adjusted relative to the tank body 21 at a set angle, and several nozzles 23 are arranged alternately with several anode units 22, thereby forming a compactly arranged anode system and a plating solution spraying mechanism. More specifically, each anode unit 22 includes several parallel anodes 221 and several anode baskets 222. The several anodes 221 are arranged parallel to each other and equidistantly on the inner side of the corresponding side inner wall of the tank body 21. The several anode baskets 222 correspond one-to-one with the several anodes 221, and each anode basket 222 is fitted onto the outer side of the corresponding anode 221 to support the anode 221. Based on this, several nozzles 23 are arranged alternately with several anode baskets 222 to ensure the uniformity and tightness of the arrangement of each anode 221 and each nozzle 23 inside the tank body 21. Based on the above configuration, the device 1 for batch electroplating of thin parts with hooks in deep tanks of this utility model generates a strong liquid flow in a preset direction by installing multiple dense and directional adjustable nozzles 23 inside the tank body 21. This directly impacts the thin parts with hooks in the deep tank, thereby enhancing the penetration ability of the plating solution into the deep tank and improving the uniformity of the liquid spraying to the hook part of the part. At the same time, through a multi-point distributed anode system, anodes 221 are densely arranged on both sides of the inner wall of the tank body 21, which can shorten the distance between the anode and cathode 221 as much as possible, improve the current distribution inside the deep tank and at the groove of the part, and improve the uniformity of the plating layer.Specifically, the high-density, gridded anode 221 layout significantly shortens the distance between the anode and cathode 221, especially for parts located in the middle of the fixture 30, making the electric field distribution more uniform and reducing the risk of incomplete plating on the inner wall of the deep tank and in the central area of ​​the parts, as well as scorching on the edges / protruding areas. For thin parts and deep tank structures, the uniform current distribution can avoid problems such as uneven plating thickness and poor adhesion. The nozzles 23 are arranged alternately with the anode units 22, forming a uniform and dense plating solution jet flow field throughout the electroplating area. The high-speed plating solution sprayed out can effectively impact the surface of the parts, especially the inner wall of the deep tank. The dense nozzle layout 23 ensures that there are no dead zones in the tank, and the forced convection significantly improves the mass transfer efficiency, maintaining the relative uniformity of the plating solution composition and temperature inside the deep tank. The equidistant, alternating, and close arrangement of the anodes 221, anode baskets 222, and nozzles 23 maximizes the utilization of the limited space and ensures that the anodes 221 and liquid flow conditions are highly consistent in any cross-section along the length of the tank 21, providing a relatively uniform electrochemical environment for the entire electroplating area.

[0029] Furthermore, each anode basket 222 is configured as a chamber structure with an open top. The side wall of the anode basket 222 facing the inside of the tank 21 is provided with several through holes a. After the anode 221 in the anode basket 222 dissolves, it can be output to the plating environment outside the anode basket 222 through the several through holes a. At the same time, the anode basket 222 can confine the residue generated by the dissolution of the anode 221, i.e., the anode 221 sludge, within the anode basket 222, reducing the risk of it drifting into the plating solution and contaminating the coating or causing the coating to be rough.

[0030] Furthermore, in one embodiment, the sidewall of the anode basket 222 with the through hole a is configured as a movable perforated plate 2221, and is detachably mounted to the side of the anode basket 222 facing the inside of the tank 21. Specifically, the two inner wall surfaces of the anode basket 222 corresponding to the movable perforated plate 2221 are respectively provided with sliding grooves b. The movable perforated plate 2221 slides into the corresponding side of the anode basket 222 through the sliding grooves b on both sides, so as to facilitate the disassembly, cleaning, maintenance and replacement of the anode basket 222. In another embodiment, the movable perforated plates 2221 of each anode basket 222 can be configured as multiple plates stacked in parallel.

[0031] Furthermore, each anode 221 is configured as an L-shaped folded plate structure, with one folded end of the anode 221 housed inside the corresponding anode basket 222.

[0032] Furthermore, each nozzle 23 is connected to the inner wall of the tank 21 via a connecting plate 231. The connecting plate 231 is disposed between two adjacent anode baskets 222, thereby enabling the nozzle 23 to be stably positioned between the two anodes 221 to spray the parts, while simultaneously achieving uniform mixing of the plating solution. Specifically, in one embodiment, a clamping part 2311 is provided at the end of the connecting plate 231 facing the inside of the tank 21, and the clamping part 2311 clamps the top end of the corresponding nozzle 23; based on this, the bottom end of the nozzle 23 is rotatably connected to the bottom wall of the tank 21, thereby maintaining the stable installation of the nozzle 23 while allowing the nozzle 23 to adaptively adjust the spray angle relative to the tank 21.

[0033] Furthermore, the frame 10 is provided with a mounting frame 11, which is located on the top side of the tank 21 and connected to the main body of the frame 10. The mounting frame 11 extends from one end of the main body of the frame 10 to the other end along the length direction of the frame 10. Based on this, a plurality of clamps 30 are arranged at equal intervals along the mounting direction of the mounting frame 11, and each clamp 30 can be adaptively adjusted in installation position according to the specific arrangement of the anode unit 22 and the nozzle 23.

[0034] Furthermore, each clamp 30 is provided with two clamping arms 31 driven by a lead screw 32 to clamp the parts. Specifically, each clamping arm 31 is provided with a three-finger gripper 311 to accommodate the clamping of thin parts with special shapes.

[0035] In summary, the device disclosed in this utility model for batch electroplating of thin parts with hooks in deep tanks generates a strong liquid flow in a preset direction by installing multiple, densely packed, and directionally adjustable nozzles inside the tank. This directly impacts the thin parts with hooks in the deep tank, thereby enhancing the penetration of the plating solution into the deep tank and improving the uniformity of the liquid spray on the hook part. At the same time, through a multi-point distributed anode system, anodes are densely arranged on both sides of the inner wall of the tank, which can minimize the distance between the anode and cathode, improve the current distribution inside the deep tank and in the groove of the part, and improve the uniformity of the plating layer. Specifically, the high-density, gridded anode layout significantly shortens the distance between the anode and cathode, especially for parts located in the middle of the fixture. This results in a more uniform distribution of electric field lines, reducing the risk of incomplete plating on the inner wall of the deep tank and in the central area of ​​the part, as well as scorching on the edges / protruding areas. For thin parts and deep tank structures, the uniform current distribution avoids problems such as uneven plating thickness and poor adhesion. The alternating arrangement of nozzles and anode units creates a uniform and dense plating solution jet flow field throughout the electroplating area. The high-speed plating solution effectively impacts the surface of the parts, especially the inner wall of the deep tank. The dense nozzle layout ensures that there are no dead zones in the tank, and the forced convection significantly improves mass transfer efficiency, maintaining the relative uniformity of plating solution composition and temperature inside the deep tank. The equidistant, alternating, and close arrangement of anodes, anode baskets, and nozzles maximizes the utilization of limited space and ensures that the anode and liquid flow conditions are highly consistent across any cross-section along the length of the tank, providing a relatively uniform electrochemical environment for the entire electroplating area.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An apparatus for batch electroplating of thin, deep-groove hook-shaped parts, characterized in that, include: The equipment includes a frame, an electroplating tank, and several clamps. The electroplating tank is located at the bottom of the frame, and the clamps are located on the top side of the electroplating tank and connected to the frame. The clamps are arranged at equal intervals along the length of the electroplating tank. The electroplating tank includes a tank body, several anode units, and several nozzles; the tank body is installed at the bottom of the frame; several anode units are arranged equidistantly on the inner wall surfaces on both sides of the tank body along the length of the tank body; several nozzles are arranged equidistantly on the inner wall surfaces on both sides of the tank body along the length of the tank body and are movably connected to the corresponding inner wall surfaces, so that the angle of each nozzle relative to the tank body can be adjusted, and several nozzles are arranged alternately with several anode units, thereby forming a compactly arranged anode system and a plating solution spraying mechanism; Each anode unit includes several parallel anodes and several anode baskets. The anodes are arranged parallel to each other and equidistantly on the inner side of the corresponding side wall of the tank. The several anode baskets correspond one-to-one with the several anodes, and each anode basket is fitted onto the outside of the corresponding anode to support the anode. Based on this, several nozzles are arranged alternately with several anode baskets to ensure the uniformity and tightness of the arrangement of each anode and each nozzle inside the tank.

2. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 1, characterized in that, Each anode basket is configured as a chamber structure with an open top, wherein the side wall of the anode basket facing the inside of the tank has several through holes.

3. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 2, characterized in that, The sidewall of the anode basket with through holes is configured as a movable perforated plate and is detachably installed on the side of the anode basket facing the inside of the tank.

4. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 3, characterized in that, The anode basket is provided with sliding grooves on the two inner wall surfaces corresponding to the movable orifice plate. The movable orifice plate slides and engages with the corresponding side of the anode basket through the sliding grooves on both sides.

5. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 4, characterized in that, Each anode basket can be configured with multiple movable orifice plates arranged in parallel stacks.

6. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 5, characterized in that, Each anode is configured with an L-shaped folded plate structure, with one folded end of the anode housed inside the corresponding anode basket.

7. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 6, characterized in that, Each nozzle is connected to the inner wall of the tank via a connecting plate, which is positioned between two adjacent anode baskets.

8. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 7, characterized in that, A clamping part is provided at one end of the connecting plate facing the inside of the tank, and the clamping part clamps the top of the corresponding nozzle.

9. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 8, characterized in that, The bottom end of the nozzle is rotatably connected to the bottom wall of the tank.

10. The apparatus for batch electroplating of thin parts with deep groove hooks according to claim 9, characterized in that, The frame is equipped with a mounting frame, which is located on the top side of the tank and connected to the frame body. The mounting frame extends from one end of the frame body to the other end along the length of the frame.

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