An electroplating process and electroplating system

Abstract

This application relates to an electroplating process and system. The process includes degreasing and cleaning the surface of a prototype workpiece to obtain a workpiece to be plated; placing the workpieces to be plated sequentially on a workpiece clamping device and fixing them; immersing the workpiece clamping device in the electroplating bath; connecting current to the workpieces to be plated and the anode providing the plating metal; controlling the workpiece clamping device and the anode to maintain a fixed distance while rotating in the electroplating bath for electroplating operations to obtain an electroplated workpiece; and drying and recycling the electroplated workpiece. This application enhances the convection effect on the surface of the workpiece by rotating in dynamic electroplating, effectively improving electroplating efficiency. Simultaneously, by controlling the fixed distance between the workpiece and the anode for electroplating, this application improves electroplating efficiency while ensuring electroplating quality, thus increasing the yield of dynamic electroplating.

Description

Technical Field

[0001] This application relates to the technical field of electroplating, and in particular to an electroplating process and electroplating system thereof. Background Technology

[0002] Electroplating, as a surface treatment process, uses a solution containing cations of the plating metal as the plating bath. The plating metal or other insoluble material serves as the anode, and the workpiece to be plated acts as the cathode. The cations of the plating metal are reduced on the surface of the workpiece to form a coating, thereby improving the workpiece's surface properties such as corrosion resistance, conductivity, smoothness, heat resistance, and aesthetics. However, existing electroplating processes and equipment are either fixed spray or immersion types, resulting in low efficiency and poor plating effects. Therefore, a method for efficient and high-quality electroplating is needed to solve these problems. Summary of the Invention

[0003] In order to improve electroplating efficiency and quality, this application provides an electroplating process and an electroplating system thereof.

[0004] This application provides an electroplating process and electroplating system, which adopts the following technical solution:

[0005] An electroplating process includes the following steps: surface degreasing and cleaning of a prototype workpiece to obtain a workpiece to be plated; placing the workpiece to be plated sequentially on a workpiece clamping device and fixing it thereon; immersing the workpiece clamping device in the electroplating solution of the electroplating bath; connecting current to the workpiece to be plated on the workpiece clamping device and the anode element providing the plating metal; controlling the workpiece clamping device and the anode element to maintain a fixed distance while rotating in the electroplating bath to perform an electroplating operation, thereby obtaining an electroplated workpiece; and drying and recycling the electroplated workpiece.

[0006] By employing the aforementioned technical solution, electroplating operations in which the workpiece to be plated rotates within the electroplating bath enhance the convection effect on the workpiece surface compared to static electroplating, effectively improving electroplating efficiency. However, due to the rotation of the workpiece, the distance between it and the anode metal constantly changes, resulting in significant current density differences between the near and far ends. This makes it difficult to control the uniformity of the plating thickness, easily leading to poor plating density or scorching at the edges of the workpiece. This application, by controlling the distance between the workpiece and the anode to maintain a fixed distance during electroplating, improves electroplating efficiency while ensuring plating quality, thereby increasing the yield rate of dynamic electroplating.

[0007] An electroplating system for the above-mentioned electroplating process includes an electroplating tank, a rotating frame on the electroplating tank, a first gear ring on the outer peripheral wall of the rotating frame, the first gear ring meshing with a first gear at the output end of a first motor, a crossbeam on the rotating frame, a vertical rotating rod in the middle of the crossbeam that rotates with the rotating frame, a sliding sleeve on the rotating rod, a positioning rod passing through the sliding sleeve, the lower end of the positioning rod being fixedly connected to the electroplating tank, a screw lifting mechanism between the sliding sleeve and the rotating rod, the screw lifting mechanism being used to drive the sliding sleeve to rise and fall when the rotating rod rotates; an annular groove on the peripheral wall of the sliding sleeve, a mounting ring fitted inside the annular groove, a connecting rod passing through the mounting ring, the upper end of the connecting rod being connected to the crossbeam, and a workpiece clamping device on the mounting ring.

[0008] By adopting the above technical solution, the first motor drives the rotating rod and the mounting ring to rotate synchronously in both forward and reverse directions. The rotation of the rotating rod drives the sliding sleeve to rise and fall, realizing a dual-motion electroplating process in which the workpiece clamping device rotates and rises and falls at the same time. This reduces the convection "dead angles" on the workpiece to be plated, makes the current density distribution more uniform, and facilitates the replacement of the workpiece to be plated after the workpiece clamping device is lifted out of the electroplating tank, effectively improving the efficiency of electroplating operations.

[0009] Optionally, the lead screw lifting mechanism includes a lead screw section provided on the rotating rod and a lead screw inner wall provided on the sliding sleeve.

[0010] By adopting the above technical solution, the sliding sleeve is restricted by the positioning rod. When the lead screw section rotates, the sliding sleeve moves up and down along the rotating rod under the action of the inner wall of the lead screw. When the workpiece clamping device is submerged in the electroplating solution, the first motor is controlled to rotate forward and reverse to drive the sliding sleeve to move up and down reciprocally in the lead screw section, so that the workpiece clamping device on the sliding sleeve can perform the electroplating process of rotating up and down in the electroplating bath.

[0011] Optionally, the rotating rod below the lead screw section is provided with a first smooth section, and a first spring is sleeved on the first smooth section, with the lower part of the first spring abutting against the electroplating tank.

[0012] By adopting the above technical solution, when the sliding sleeve in the electroplating tank descends to a certain depth, the inner wall of the sliding sleeve nut enters the first smooth section from the screw section. At this time, the rotating rod continues to rotate forward and no longer drives the sliding sleeve to descend. This allows the workpiece to be plated to remain and rotate continuously in the electroplating tank when the surface flatness is high. The reduced frequency of forward and reverse rotation of the first motor lowers losses and enriches the system's operating modes. When the rotating rod rotates in the reverse direction, the first spring pushes the sliding sleeve, causing the inner wall of the sliding sleeve nut to smoothly enter the screw section, thus allowing the sliding sleeve to be driven upward by the rotating rod.

[0013] Optionally, a first helical gear and a second helical gear are provided on the rotating rod below the first smooth section. The first helical gear is fixed to the rotating rod, and the second helical gear is sleeved on the rotating rod. A reversing helical gear is connected between the first helical gear and the second helical gear. The second helical gear is integrally formed with the accelerating impeller. A sweeping brush is provided at the bottom of the accelerating impeller, and an outlet is provided at the bottom of the electroplating tank.

[0014] By adopting the above technical solution, the rotating rod drives the acceleration impeller to rotate, which speeds up the flow of electroplating solution and improves electroplating efficiency. At the same time, the accelerated sweeping of the impeller sweeps the anode waste residue on the bottom of the electroplating tank into the outlet, effectively cleaning the bottom of the tank.

[0015] Optionally, a second smooth section structure is provided above the rotating rod, and an exhaust impeller is provided on the rotating rod above the second smooth section. An outer cover is provided on the exhaust impeller, and an air outlet is provided on the outer cover.

[0016] By adopting the above technical solution, during electroplating, the rotating rod rotates and drives the exhaust impeller to rotate. The exhaust impeller and the outer cover form a gas collection hood, collecting and treating the waste gas generated during the electroplating process, thus achieving green operation. At the same time, after electroplating is completed, the workpiece to be plated is raised into the outer cover. The workpiece is close to the exhaust impeller, the surface air velocity is increased, and the drying efficiency is improved.

[0017] Optionally, the electroplating tank is provided with a first guide rail connected to the negative terminal of the power supply, and a first brush wire group is connected between the first guide rail and the workpiece clamping device; an anode component electrically connected to the positive terminal of the power supply is provided below the crossbeam on one side of the workpiece clamping device.

[0018] By adopting the above technical solution, the workpiece to be plated and the anode on the workpiece clamping device are electrically connected to the positive and negative poles of the power supply through the guide rail brush mechanism during rotation. The anode rotates together with the workpiece to be plated under the drive of the crossbeam, so that the horizontal distance between the two remains unchanged, thereby improving the uniformity and quality of the coating.

[0019] Optionally, a bracket is provided below the crossbeam, a nut is provided on the bracket, a second toothed ring is provided on the outer wall of the nut, a lead screw is provided inside the nut, the anode is provided at the lower end of the lead screw, and a third toothed ring is provided on the inner wall of the electroplating tank to mesh with the second toothed ring.

[0020] Since the workpiece to be plated can perform electroplating actions while rotating and moving up and down, by adopting the above technical solution, the anode part can also drive the anode part on the screw part to rise and fall through the engagement of the nut and the second gear ring while following the rotation of the crossbeam, so that the height distance between the anode part and the workpiece to be plated can also maintain a certain consistency, thereby further controlling the current density and electroplating quality on the workpiece to be plated.

[0021] Optionally, the mounting ring is provided with a first connecting rod, a baffle is provided on one side of the first connecting rod, the end of the first connecting rod is hinged to the workpiece clamping device, a second spring is provided between the workpiece clamping device and the baffle, a guide plate is provided at the lower part of the workpiece clamping device, and symmetrical guide slopes are provided at both ends of the guide plate.

[0022] By adopting the above technical solution, when there are grooves and holes on both sides of the workpiece to be plated, the electroplating liquid impacts the guide plate during rotation. The guide plate deflects under the action of the guide inclined surface. The deflection of the guide plate causes the workpiece to be plated on the workpiece clamping device to deflect, so that the workpiece to be plated is offset from the rotation tangent direction during forward and reverse rotation. After deflection, the grooves and holes on both sides of the workpiece to be plated can be more affected by the increased flow rate of the electroplating liquid, thereby increasing the thickness of the coating deposition.

[0023] Optionally, the lead screw lifting mechanism includes a reciprocating sleeve fitted onto the rotating rod. The lower outer peripheral wall of the reciprocating sleeve is provided with a fourth gear ring. A second gear is fixed at the lower part of the rotating rod. A speed-changing gear set is connected between the second gear and the fourth gear ring. The reciprocating sleeve is provided with a reciprocating groove. A reciprocating component is provided in the reciprocating groove. A flange is provided at the end of the reciprocating component. The end of the flange is connected to a sliding sleeve.

[0024] By adopting the above technical solution, the rotating rod drives the reciprocating sleeve to rotate, and the rotation of the reciprocating sleeve drives the sliding sleeve to perform reciprocating lifting and lowering actions. The reciprocating sleeve mechanism replaces the forward and reverse rotation of the first motor, thereby reducing the frequency and loss of the forward and reverse rotation of the first motor, reducing the complexity of the system, and improving the ease of operation.

[0025] In summary, this application includes at least one of the following beneficial technical effects: This application enhances the convection effect on the surface of the workpiece to be plated through rotating dynamic electroplating, effectively improving electroplating efficiency. Simultaneously, by controlling the workpiece to be plated and the anode to maintain a fixed distance during electroplating, this application improves electroplating efficiency while ensuring electroplating quality, thereby increasing the yield rate of dynamic electroplating. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0027] Figure 2 This is a schematic diagram of the workpiece clamping device in Embodiment 1 of this application.

[0028] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Electroplating tank; 11. Outlet; 12. First guide rail; 13. First brush wire group; 14. Third gear ring; 15. Shelf; 2. Rotating frame; 21. First gear ring; 22. Crossbeam; 23. Rotating rod; 231. Lead screw section; 232. First smooth section; 233. First helical gear; 234. Second helical gear; 235. Second smooth section; 236. Reversing helical gear; 24. Accelerating impeller; 241. Sweeping brush; 25. Exhaust impeller; 26. First spring; 27. Sliding sleeve; 271. Inner wall of the lead screw nut; 272. Annular groove; 28. 29. Positioning rod; 3. Mounting ring; 4. Outer cover; 5. Air outlet; 6. Workpiece clamping device; 7. Guide plate; 8. Guide slope; 9. First connecting rod; 10. Baffle; 11. Movable pressure plate; 12. Clearance hole; 13. Tail plate; 14. Connecting frame; 15. Second spring; 16. First motor; 17. First gear; 18. Reciprocating sleeve; 19. Reciprocating groove; 20. Flange; 21. Fourth gear ring; 22. Second gear; 33. Gear set; 44. Anode; 55. Bracket; 66. Nut; 77. Second gear ring; 88. Lead screw. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] Example 1

[0032] Embodiment 1 of this application discloses an electroplating process and an electroplating system thereof.

[0033] Reference Figure 1-2 The electroplating system includes an electroplating tank 1, on which a rotating frame 2 is mounted. The rotating frame 2 includes a base and an upright frame mounted on the base. The base is engaged with an annular track along the upper edge of the electroplating tank 1. A first gear ring 21 is provided on the outer peripheral wall of the base, and the first gear ring 21 meshes with a first gear 51 at the output end of a first motor 5. A crossbeam 22 is provided on the upper part of the upright frame of the rotating frame 2. A vertical rotating rod 23 that rotates with the rotating frame 2 is provided in the middle of the crossbeam 22. The rotating rod 23 passes through a shelf 15 provided in the electroplating tank 1 and is positioned on the bottom surface of the electroplating tank 1. A sliding sleeve 27 is provided on the rotating rod 23. Two symmetrical positioning rods 28 pass through the sliding sleeve 27. The lower ends of the positioning rods 28 are fixedly connected to the electroplating tank 1, and the sliding sleeve 27 can slide up and down along the positioning rods 28. A lead screw lifting mechanism is provided between the sliding sleeve 27 and the rotating rod 23. The lead screw lifting mechanism includes a lead screw section 231 provided in the rotating rod 23 and a lead screw nut inner wall 271 provided in the sliding sleeve 27. The lead screw lifting mechanism is used to drive the sliding sleeve 27 to rise and fall when the rotating rod 23 rotates.

[0034] The rotating rod 23 below the lead screw section 231 has a first smooth section 232, i.e., a threadless section. The first smooth section 232 is fitted with a first spring 26, and the lower part of the first spring 26 abuts against the shelf 15 of the electroplating tank 1. The rotating rod 23 below the first smooth section 232 under the shelf 15 has a first helical gear 233 and a second helical gear 234. The first helical gear 233 is fixed to the rotating rod 23, and the second helical gear 234 is fitted onto the rotating rod 23. A reversing helical gear 236 connects the first helical gear 233 and the second helical gear 234. The second helical gear 234 is integrally formed with an accelerating impeller 24. The rotating rod 23 passes through the middle of the second helical gear 234 and the accelerating impeller 24. A sweeping brush 241 is provided at the bottom of the accelerating impeller 24, and an outlet 11 is provided on the bottom surface of the electroplating tank 1. A second smooth section 235 is provided above the rotating rod 23. An exhaust impeller 25 is provided on the rotating rod 23 above the second smooth section 235. An outer cover 3 is provided on the exhaust impeller 25, and an air outlet 31 is provided on the outer cover 3. An annular groove 272 is provided on the peripheral wall of the sliding sleeve 27. An installation ring 29 is fitted inside the annular groove 272. A connecting rod is passed through the installation ring 29. The upper end of the connecting rod is connected to the crossbeam 22. A workpiece clamping device 4 is provided on the installation ring 29. Specifically, the mounting ring 29 is provided with a first connecting rod 42. A baffle 43, a movable pressure plate 44, and a tail plate 45 are sequentially provided on one side of the first connecting rod 42. The end of the first connecting rod 42 is hinged to the tail plate 45 through a ball joint structure. A second spring 47 is provided between the movable pressure plate 44 and the baffle 43. The middle of the movable pressure plate 44 is provided with a clearance hole 441 for the movable pressure plate 44 to swing and deflect. A connecting frame 46 is provided at the lower part of the movable pressure plate 44 and the tail plate 45. The connecting frame 46 is provided with a guide plate 41. The guide plate 41 is provided with symmetrical guide slopes 411 at both ends.

[0035] The electroplating tank 1 is equipped with a first guide rail 12 connected to the negative terminal of the power supply. A first brush wire group 13 is connected between the first guide rail 12 and the workpiece clamping device 4. An anode 7 electrically connected to the positive terminal of the power supply is provided below the crossbeam 22 on one side of the workpiece clamping device 4. In addition to the electrical connection method adopted in this embodiment 1, the power supply can also be directly installed on the rotating frame 2, so that it rotates together with the workpiece to be plated and the anode 7 and provides current to it. A bracket 8 is provided below the crossbeam 22. A nut 81 is provided on the bracket 8. A second toothed ring 82 is provided on the outer wall of the nut 81. A lead screw 83 passes through the nut 81. The anode 7 is located at the lower end of the lead screw 83. A third toothed ring 14 that meshes with the second toothed ring 82 is provided on the inner wall of the electroplating tank 1. Similarly, the upper part of the lead screw 83 is provided with a threadless section. When the nut 81 reaches this position, the lead screw 83 is no longer lowered by the action of the nut 81. A return spring is provided between the bracket 8 and the lead screw 83. When the rotating rod 23 drives the bracket 8 to move in the opposite direction, that is, when the nut 81 meshes with the third toothed ring 14 on the inner wall of the electroplating tank 1 and rotates in the opposite direction, the return spring pushes the lead screw 83 upward, so that the threaded section of the return spring re-enters the nut 81, realizing the reciprocating process of the nut 81 driving the lead screw 83 to rise.

[0036] An electroplating process includes the following steps: surface degreasing and cleaning of a prototype workpiece to obtain a workpiece to be plated; placing the workpieces to be plated sequentially on a workpiece clamping device 4 for fixation; simultaneously immersing the workpiece clamping device 4 into the electroplating solution of the electroplating bath 1 while starting a first motor 5 to drive the rotating frame 2 to rotate; and connecting current to the workpieces to be plated on the workpiece clamping device 4 and the anode 7 providing the plating metal. The first motor 5 performs forward and reverse cyclic operation within a certain height range of the workpiece clamping device 4 according to a pre-set program. The workpiece clamping device 4 and the anode 7 are kept at a fixed distance and rotate and lift in the electroplating tank 1 for electroplating operation. After the electroplating reaches the standard time or quality, the first motor 5 is controlled to lift the electroplated workpiece with the coating out of the electroplating solution and further raise it until the electroplated workpiece enters the outer cover 3. At this time, the sliding sleeve 27 reaches the second smooth section 235. The electroplated workpiece only rotates under the drive of the rotating frame 2 and does not continue to rise. Since the electroplated workpiece is close to the exhaust impeller 25 at this time, the rotating exhaust impeller 25 accelerates the air flow on the surface of the electroplated workpiece, so that the electroplated workpiece dries faster and is easier to recover.

[0037] Example 2

[0038] Embodiment 2 of this application discloses an electroplating process and an electroplating system thereof.

[0039] Reference Figure 3 The electroplating system includes an electroplating tank 1, on which a rotating frame 2 is mounted. The rotating frame 2 includes a base and an upright frame mounted on the base. The base is engaged with an annular track along the upper edge of the electroplating tank 1. A first gear ring 21 is provided on the outer peripheral wall of the base, and the first gear ring 21 meshes with a first gear 51 at the output end of a first motor 5. A crossbeam 22 is provided on the upper part of the upright frame of the rotating frame 2. A vertical rotating rod 23 that rotates with the rotating frame 2 is provided in the middle of the crossbeam 22. The rotating rod 23 passes through a shelf 15 provided in the electroplating tank 1 and is positioned on the bottom surface of the electroplating tank 1. A sliding sleeve 27 is provided on the rotating rod 23. Two symmetrical positioning rods 28 pass through the sliding sleeve 27. The lower ends of the positioning rods 28 are fixedly connected to the electroplating tank 1, and the sliding sleeve 27 can slide up and down along the positioning rods 28. A screw lifting mechanism is provided between the sliding sleeve 27 and the rotating rod 23. The screw lifting mechanism is used to drive the sliding sleeve 27 to rise and fall when the rotating rod 23 rotates. Specifically, the lead screw lifting mechanism includes a reciprocating sleeve 6 fitted onto the rotating rod 23. A fourth gear ring 63 is provided on the lower outer peripheral wall of the reciprocating sleeve 6. A second gear 64 is fixed to the lower part of the rotating rod 23. A speed-changing gear set 65 connects the second gear 64 and the fourth gear ring 63. An outer sleeve is provided outside the reciprocating sleeve 6, and the lower part of the outer sleeve is fixed to the shelf 15. A vertical limiting groove is provided on the outer sleeve, and a reciprocating groove 61 is provided on the reciprocating sleeve 6. A reciprocating component is provided inside the reciprocating groove 61, and a flange 62 is provided at the end of the reciprocating component. The end of the flange 62 passes through the limiting groove and connects to the sliding sleeve 27.

[0040] An electroplating process includes the following steps: surface degreasing and cleaning of a prototype workpiece to obtain a workpiece to be plated; placing the workpieces to be plated sequentially on a workpiece clamping device 4 for fixation; then injecting sufficient electroplating solution into an electroplating bath 1 to completely immerse the workpieces in the solution. Current is then applied to the workpieces to be plated on the workpiece clamping device 4 and to the anode 7 providing the plating metal. A first motor 5 is then started, maintaining unidirectional rotation. The rotation of the first motor 5 drives the rotating frame 2 to rotate. Simultaneously, the rotating rod 23 of the rotating frame 2 rotates, driving the reciprocating sleeve 6 to rotate at a speed asynchronous with the rotating rod 23 via a fourth gear ring 63, a second gear 64, and a speed-changing gear set 65. This allows the workpiece clamping device 4 to perform a reciprocating dynamic electroplating operation in the electroplating solution, rotating and moving up and down simultaneously. After electroplating is completed, the first motor 5 is turned off, the electroplating solution is released, and the workpieces to be plated are removed.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electroplating system for an electroplating process, characterized in that: The system includes an electroplating tank (1), on which a rotating frame (2) is provided. The outer peripheral wall of the rotating frame (2) is provided with a first gear ring (21), which meshes with a first gear (51) at the output end of a first motor (5). The rotating frame (2) is provided with a crossbeam (22), and a vertical rotating rod (23) that rotates with the rotating frame (2) is provided in the middle of the crossbeam (22). A sliding sleeve (27) is provided on the rotating rod (23), and a positioning rod (28) passes through the sliding sleeve (27). The lower end is fixedly connected to the electroplating tank (1). A screw lifting mechanism is provided between the sliding sleeve (27) and the rotating rod (23). The screw lifting mechanism is used to drive the sliding sleeve (27) to rise and fall when the rotating rod (23) rotates. The sliding sleeve (27) has an annular groove (272) on its peripheral wall. An installation ring (29) is fitted inside the annular groove (272). A connecting rod is passed through the installation ring (29). The upper end of the connecting rod is connected to the crossbeam (22). A workpiece clamping device (4) is provided on the installation ring (29). The lead screw lifting mechanism includes a lead screw section (231) provided on the rotating rod (23) and a lead screw inner wall (271) provided on the sliding sleeve (27); the rotating rod (23) below the lead screw section (231) is provided with a first smooth section (232), and a first spring (26) is sleeved on the first smooth section (232), and the lower part of the first spring (26) abuts against the electroplating tank (1). The lead screw lifting mechanism includes a reciprocating sleeve (6) sleeved on the rotating rod (23). The lower outer peripheral wall of the reciprocating sleeve (6) is provided with a fourth gear ring (63). A second gear (64) is fixed at the lower part of the rotating rod (23). A speed-changing gear group (65) is connected between the second gear (64) and the fourth gear ring (63). The reciprocating sleeve (6) is provided with a reciprocating groove (61). A reciprocating component is provided in the reciprocating groove (61). A flange (62) is provided at the end of the reciprocating component. The end of the flange (62) is connected to the sliding sleeve (27). The electroplating tank (1) is provided with a first guide rail (12) connected to the negative terminal of the power supply. A first brush wire group (13) is connected between the first guide rail (12) and the workpiece clamping device (4). An anode (7) electrically connected to the positive terminal of the power supply is provided below the crossbeam (22) on one side of the workpiece clamping device (4). A bracket (8) is provided below the crossbeam (22). A nut (81) is provided on the bracket (8). A second toothed ring (82) is provided on the outer wall of the nut (81). A lead screw (83) is passed through the nut (81). The anode (7) is located at the lower end of the lead screw (83). A third toothed ring (14) meshes with the second toothed ring (82) on the inner wall of the electroplating tank (1).

2. The electroplating system according to claim 1, characterized in that: A first helical gear (233) and a second helical gear (234) are provided on the rotating rod (23) below the first smooth section (232). The first helical gear (233) is fixed to the rotating rod (23), and the second helical gear (234) is sleeved on the rotating rod (23). A reversing helical gear (236) is connected between the first helical gear (233) and the second helical gear (234). The second helical gear (234) is integrally formed with an acceleration impeller (24). A sweeping brush (241) is provided at the bottom of the acceleration impeller (24), and an outlet (11) is provided on the bottom surface of the electroplating tank (1).

3. The electroplating system according to claim 2, characterized in that: The rotating rod (23) is provided with a second smooth section (235) structure above it. The rotating rod (23) on the upper side of the second smooth section (235) is provided with an exhaust impeller (25). The exhaust impeller (25) is provided with an outer cover (3). The outer cover (3) is provided with an air outlet (31).

4. The electroplating system according to claim 1, characterized in that: The mounting ring (29) is provided with a first connecting rod (42), and a baffle (43) is provided on one side of the first connecting rod (42). The end of the first connecting rod (42) is hinged to the workpiece clamping device (4). A second spring (47) is provided between the workpiece clamping device (4) and the baffle (43). A guide plate (41) is provided at the lower part of the workpiece clamping device (4). Symmetrical guide slopes (411) are provided at both ends of the guide plate (41).

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