Local electroplating equipment for shaft workpieces

Abstract

The utility model discloses local electroplating equipment for shaft workpieces, which comprises a brush plating workbench and a cart frame, the cart frame is used for placing the shaft workpieces, a liquid medicine tank and a plurality of brush plating heads are arranged on the brush plating workbench, electroplating tanks are arranged on one sides of the brush plating heads, liquid medicine channels are arranged inside the brush plating heads, and the brush plating heads are arranged on the cart frame. The liquid medicine tank is connected with the liquid medicine channel through a pipeline, and the brush plating head is further connected with a driving device which provides rotating power for the brush plating head. According to the utility model, the structural design of rotary brush plating is adopted, one end, which needs brush plating, of a shaft workpiece is inserted into the plating bath of the brush plating head by pushing the trolley frame, then the brush plating head is driven to rotate by the driving device, and the liquid medicine channel connected with the liquid medicine tank is arranged in the brush plating head, so that the brush plating head can be uniformly brushed in the rotating process of the brush plating head; the electrolyte flows into the gap between the shaft workpiece and the electroplating bath through the liquid medicine channel, so that the circumferential surface of the shaft workpiece is in full contact with the electrolyte, and the technical problems that a brush plating layer is not uniform and not connected are solved.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology, specifically to a local electroplating device for shaft-type workpieces. Background Technology

[0002] Electroplating is a process that uses electrolysis to deposit a thin layer of metal or alloy coating onto the surface of certain substrates, thereby altering the surface properties of the substrate and preventing metal oxidation and corrosion. Electroplating is mainly divided into rack plating, barrel plating, continuous plating, and brush plating. For large electrical equipment, the components are often quite large, but the conductive contact surfaces requiring electroplating are often small, such as aircraft propellers. In these cases, localized brush plating is necessary. Brush plating, also known as coating plating, uses the plating metal or other insoluble material as the anode and the workpiece to be plated as the cathode. The cations of the plating metal are reduced on the surface of the workpiece to form the coating.

[0003] Initially, brush plating was done manually. However, manual brush plating often resulted in uneven plating and difficulty in controlling the thickness, leading to inconsistent plating quality. Therefore, manual brush plating was gradually phased out by brush plating machines. Brush plating machines rely on a pad or brush in contact with the anode to provide the electrolyte. As the anode contacts and moves relative to the part surface, metal is deposited to form a plating layer. However, existing brush plating machines often only contact the part on a single plane, making it inconvenient to process the circumferential surfaces of shaft-like parts. Utility Model Content

[0004] The purpose of this invention is to provide a local electroplating device for shaft-type workpieces, which enables the circumferential surface of the shaft-type workpiece to fully contact the electrolyte, thus solving the technical problem of uneven and discontinuous plating caused by existing electroplating brushes or electroplating pads.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A local electroplating device for shaft-type workpieces is provided, including a brush plating worktable and a trolley frame;

[0007] The brush plating workbench is equipped with a chemical tank and several brush plating heads. One side of each brush plating head has an electroplating tank, and the side wall of the brush plating head also has a chemical channel communicating with the electroplating tank. The chemical tank and the chemical channel are connected by a pipe to provide electrolyte to the brush plating head. The brush plating head is also connected to a drive device, which provides rotational power to the brush plating head.

[0008] The trolley frame is detachably installed on one side of the electroplating workbench. The trolley frame is used to place shaft-type workpieces. The end of the shaft-type workpiece that needs to be electroplated is inserted into the electroplating tank for rotational electroplating.

[0009] As a preferred embodiment of a local electroplating equipment for shaft-type workpieces, the brush plating worktable is also equipped with a position adjustment device. The drive device and the brush plating head are both mounted on the position adjustment device to adjust the position of the brush plating head so that it corresponds to the position of the shaft-type workpiece.

[0010] As a preferred embodiment of a local electroplating equipment for shaft-type workpieces, the position adjustment device includes an X-axis adjustment assembly, a Y-axis adjustment assembly, and a Z-axis adjustment assembly;

[0011] The X-axis adjustment assembly includes an X-axis bracket mounted on the plating worktable, an X-axis lead screw movably mounted on the X-axis bracket, a first slider mounted on the X-axis lead screw, and a first telescopic sleeve fitted on the exposed portions of the X-axis lead screw before and after the first slider. The two ends of the first telescopic sleeve are fixedly connected to one side of the X-axis bracket and the first slider, respectively, to provide protection for the X-axis lead screw. A first handwheel is mounted on one end of the X-axis lead screw, and the first handwheel is used to drive the first slider to move along the X-axis lead screw.

[0012] The Y-axis adjustment assembly includes a Y-axis bracket mounted on the first slider, a Y-axis lead screw mounted on the Y-axis bracket, a second slider mounted on the Y-axis lead screw, and second telescopic sleeves fitted on the exposed portions of the Y-axis lead screw before and after the second slider. The two ends of the second telescopic sleeves are fixedly connected to one side of the Y-axis bracket and the second slider, respectively, to provide protection for the Y-axis lead screw. A second handwheel is mounted on one end of the Y-axis lead screw, and the second handwheel is used to drive the second slider to move along the Y-axis lead screw.

[0013] The Z-axis adjustment assembly includes a Z-axis bracket mounted on the second slider, a Z-axis lead screw movably mounted on the Z-axis bracket, a third slider mounted on the Z-axis lead screw, and a third telescopic sleeve fitted on the exposed portions of the Z-axis lead screw before and after the third slider. The two ends of the third telescopic sleeve are fixedly connected to one side of the Z-axis bracket and the third slider, respectively, providing protection for the Z-axis lead screw. The drive device and the plating head are mounted on the third slider, and a third handwheel is mounted on one end of the Z-axis lead screw. The third handwheel is used to drive the third slider, the drive device, and the plating head to move along the Z-axis lead screw.

[0014] The first telescopic sleeve, the second telescopic sleeve, and the third telescopic sleeve are all made of corrosion-resistant material.

[0015] As a preferred embodiment of a local electroplating equipment for shaft-type workpieces, the drive device is equipped with proximity switches at both the upper and lower ends, and a sensing plate is provided on one side of the brush plating head. When the brush plating head rotates, the sensing plate will rotate accordingly.

[0016] When the sensing element rotates to above or below the driving device, the sensing element will sense the proximity switch, and the proximity switch will change the rotation direction of the driving device.

[0017] As a preferred embodiment of a local electroplating device for shaft-type workpieces, a graphite anode is provided inside the plating head, and the graphite anode is in contact with the electrolyte in the electroplating tank.

[0018] As a preferred embodiment of a local electroplating equipment for shaft-type workpieces, the brush plating head is equipped with an inlet pump and an outlet pump, both of which are connected to a chemical tank and a chemical channel via pipelines to form a circulating flow channel for the electrolyte.

[0019] As a preferred embodiment of a local electroplating equipment for shaft-type workpieces, a number of conforming frames are installed at intervals on the trolley frame, the shaft-type workpieces are placed on the conforming frames, and the conforming frames can be adjusted up and down to adjust the height of the shaft-type workpieces.

[0020] As a preferred embodiment of a local electroplating equipment for shaft-type workpieces, the conforming frame includes a threaded rod, and the trolley frame has a matching threaded hole at the position of the threaded rod. The threaded rod can rotate up and down in the threaded hole and be fixed and locked by a nut. A rubber pad is also provided at the top of the threaded rod, and the rubber pad provides support and protection for the shaft-type workpiece.

[0021] As a preferred embodiment of a partial electroplating equipment for shaft-type workpieces, the bottom of the trolley frame is provided with several moving wheels, and a pin is also provided on the side of the trolley frame near the brush plating worktable. The brush plating worktable has a pin hole corresponding to the position of the pin. When the trolley frame moves to one side of the brush plating worktable, the pin can be inserted into the pin hole to position the trolley frame.

[0022] As a preferred embodiment of a local electroplating equipment for shaft-type workpieces, the trolley frame is also equipped with a return trough, which is located directly below the end of the shaft-type workpiece that needs to be brush-plated, and is used to collect electrolyte that may overflow from the brush plating head; the return trough is also equipped with a return valve, which is connected to the chemical tank through a pipe.

[0023] The beneficial effects of this utility model are:

[0024] This invention employs a rotary brush plating structure. The shaft-like workpiece is fixedly placed on a trolley frame, and the end of the workpiece to be plated is inserted into the plating tank of the brush plating head by pushing the trolley frame. A drive device then rotates the brush plating head. Because the brush plating head has a chemical channel connected to a chemical tank, the electrolyte flows into the gap between the shaft-like workpiece and the plating tank during the rotation of the brush plating head. Under the rotation of the drive device, the electrolyte continuously flows across the surface of the shaft-like workpiece, thus achieving the purpose of brush plating. Unlike traditional brush plating equipment, this rotary brush plating method allows the surface of the shaft-like workpiece to fully contact the electrolyte, with one end of the workpiece essentially immersed in the electrolyte. This solves the technical problem of uneven and discontinuous plating caused by existing plating brushes or pads, effectively improving the plating quality of shaft-like workpieces. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0026] Figure 1 This is a front structural schematic diagram of the partial electroplating equipment for shaft-type workpieces described in this utility model.

[0027] Figure 2 This is a side view of the partial electroplating equipment for shaft-type workpieces described in this utility model.

[0028] Figure 3 This is a schematic diagram of the relevant structure of the brush plating workbench described in this utility model.

[0029] Figure 4 This is a schematic diagram of the relevant structure of the brush plating head described in this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of the Y-axis adjustment component and the Z-axis adjustment component described in this utility model.

[0031] Figure 6 This is a schematic diagram of the relevant structure of the trolley frame described in this utility model.

[0032] Figure 7 This is a structural schematic diagram of the conforming frame described in this utility model.

[0033] Figures 1 to 6 middle:

[0034] 1. Brush plating worktable; 2. Chemical tank; 3. Brush plating head; 31. Electroplating tank; 4. Drive unit; 5. Trolley frame; 51. Conformer frame; 511. Threaded rod; 512. Nut; 513. Rubber pad; 52. Casters; 53. Pin; 54. Pin hole; 55. Return channel; 56. Return valve; 6. Position adjustment device; 61. X-axis support; 62. X-axis lead screw; 63. First slider; 64. 65. Y-axis support; 66. Y-axis lead screw; 67. Second slider; 68. Second handwheel; 69. Z-axis support; 610. Z-axis lead screw; 611. Third slider; 612. Third handwheel; 613. First telescopic sleeve; 614. Second telescopic sleeve; 615. Third telescopic sleeve; 7. Proximity switch; 8. Induction plate; 9. Graphite anode; 10. Electrical control box; 100. Shaft-type workpiece. Detailed Implementation

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0037] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; 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 refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Example 1:

[0040] like Figures 1 to 4 As shown, this embodiment provides a partial electroplating equipment for shaft-type workpieces, including a brush plating worktable 1 and a trolley frame 5. The brush plating worktable 1 is provided with a chemical tank 2 and a brush plating head 3. An electroplating tank 31 is opened on one side of the brush plating head 3, and a chemical channel communicating with the electroplating tank 31 is also opened on the side wall of the brush plating head 3. The chemical tank 2 and the chemical channel are connected by a pipe. The chemical tank 2 is filled with electrolyte. The electrolyte can flow into the chemical channel of the brush plating head 3 through the pipe, and then flow into the electroplating tank 31 from the chemical channel.

[0041] The trolley frame 5 is detachably installed on one side of the brush plating workbench 1. The trolley frame 5 is used to place the shaft workpiece 100. The end of the shaft workpiece 100 that needs to be brush plated can be inserted into the electroplating tank 31 of the brush plating head 3. Since the diameter of the electroplating tank 31 is slightly larger than that of the shaft workpiece 100, there is a gap between the shaft workpiece 100 and the electroplating tank 31. The electrolyte in the chemical channel will enter the gap of the electroplating tank 31 and fully contact the circumferential surface of the shaft workpiece 100. The inside of the brush plating head 3 is also provided with a graphite anode 9. The graphite anode 9 is in contact with the electrolyte in the electroplating tank 31 and is connected to the positive terminal of the DC power supply. The shaft workpiece 100 to be plated is connected to the negative terminal of the DC power supply as the cathode. The current can enter the electrolyte through the graphite anode 9, driving the metal ions in the electrolyte to be reduced and deposited on the surface of the shaft workpiece 100.

[0042] Meanwhile, the brush plating head 3 in this embodiment is also connected to a driving device 4, which is preferably a servo motor. The driving device 4 can drive the brush plating head 3 to rotate, thereby causing the electrolyte in the electroplating tank 31 to flow continuously, thus achieving the purpose of brush plating. At the same time, it can avoid problems such as uneven or discontinuous plating on the surface of the shaft workpiece 100, effectively improving the plating quality of the shaft workpiece 100.

[0043] To improve the working efficiency of the electroplating equipment, multiple shaft-type workpieces 100 can be placed on the trolley frame 5 in this embodiment, and multiple brush plating heads 3 are placed on the brush plating worktable 1, so that multiple shaft-type workpieces 100 can be brush plating at the same time.

[0044] To improve the applicability of the electroplating equipment, a position adjustment device 6 is also installed on the brush plating worktable 1 in this embodiment. The drive device 4 and the brush plating head 3 are both installed on the position adjustment device 6. The position adjustment device 6 can adjust the position of the brush plating head 3 so that the brush plating head 3 can be accurately fitted onto the end of the shaft workpiece 100 that needs to be brush plating.

[0045] like Figure 3 and Figure 5 As shown, the position adjustment device 6 specifically includes an X-axis adjustment assembly, a Y-axis adjustment assembly, and a Z-axis adjustment assembly;

[0046] The X-axis adjustment assembly includes an X-axis bracket 61 mounted on the brush plating worktable 1, an X-axis lead screw 62 movably mounted on the X-axis bracket 61, a first slider 63 mounted on the X-axis lead screw 62, and a first handwheel 64 mounted on one end of the X-axis lead screw 62. When the operator rotates the first handwheel 64, the first slider 63 and the components on the first slider 63 will move along the X-axis lead screw 62.

[0047] Preferably, to prevent the X-axis lead screw 62 from being affected by the electroplating environment, the exposed portions of the X-axis lead screw 62 located before and after the first slider 63 can be fitted with first telescopic sleeves 613. The two ends of the first telescopic sleeves 613 are fixedly connected to the X-axis bracket 61 and one side of the first slider 63, respectively, to provide protection for the X-axis lead screw 62. Since the first telescopic sleeves 613 have a telescopic function, when the first slider 63 slides on the X-axis lead screw 62, the two first telescopic sleeves 613 will also extend and retract accordingly, thereby avoiding affecting the movement of the first slider 63.

[0048] The Y-axis adjustment assembly includes a Y-axis bracket 65 mounted on a first slider 63, a Y-axis lead screw 66 mounted on the Y-axis bracket 65 (affected by the electroplating environment), a second slider 67 mounted on the Y-axis lead screw 66, and a second handwheel 68 mounted on one end of the Y-axis lead screw 66. When the operator turns the second handwheel 68, the second slider 67 and the components on the second slider 67 will move along the Y-axis lead screw 66.

[0049] Preferably, to prevent the Y-axis lead screw 66 from being affected by the electroplating environment, the exposed portions of the Y-axis lead screw 66 located before and after the second slider 67 can be fitted with second telescopic sleeves 614. The two ends of the second telescopic sleeves 614 are fixedly connected to the Y-axis bracket 65 and one side of the second slider 67, respectively, to provide protection for the Y-axis lead screw 66. Since the second telescopic sleeves 614 have a telescopic function, when the second slider 67 slides on the Y-axis lead screw 66, the two second telescopic sleeves 614 will also extend and retract accordingly, thereby avoiding affecting the movement of the second slider 67.

[0050] The Z-axis adjustment assembly includes a Z-axis bracket 69 mounted on a second slider 67, a Z-axis lead screw 610 movably mounted on the Z-axis bracket 69, a third slider 611 mounted on the Z-axis lead screw 610, a drive device 4 and a brush plating head 3 both mounted on the third slider 611, and a third handwheel 612 mounted on one end of the Z-axis lead screw 610. When the operator rotates the third handwheel 612, the third slider 611, the drive device 4 and the brush plating head 3 will move along the Z-axis lead screw 610.

[0051] Preferably, to prevent the Z-axis lead screw 610 from being affected by the electroplating environment, the exposed parts of the Z-axis lead screw 610 located before and after the third slider 611 can be fitted with third telescopic sleeves 615. The two ends of the third telescopic sleeves 615 are fixedly connected to the Z-axis bracket 69 and one side of the third slider 611, respectively, to provide protection for the Z-axis lead screw 610. Since the third telescopic sleeves 615 have a telescopic function, when the third slider 611 slides on the Z-axis lead screw 610, the two third telescopic sleeves 615 will also extend and retract accordingly, thereby avoiding affecting the movement of the third slider 611.

[0052] Meanwhile, the first telescopic sleeve 613, the second telescopic sleeve 614, and the third telescopic sleeve 615 described in this embodiment are preferably made of corrosion-resistant materials to improve service life. This not only prevents foreign objects from entering the Y-axis lead screw 66 and causing damage to the meshing relationship, but also avoids corrosion of the internal lead screw.

[0053] like Figure 2 As shown, since various pipes and wire harnesses are connected to the plating head 3, in order to prevent the pipes and wire harnesses from getting tangled during rotation, the drive device 4 in this embodiment is equipped with proximity switches 7 at both the upper and lower ends. A sensing plate 8 is provided on one side of the plating head 3. When the drive device 4 drives the plating head 3 to rotate, the sensing plate 8 will also rotate. When the sensing plate 8 rotates to the upper or lower proximity switch 7, the proximity switch 7 will sense the sensing plate 8 and send a signal to the control box 10. The control box 10 will send a command to the drive device 4 to change its rotation direction, thereby realizing repeated rotation.

[0054] To further improve the fluidity of the electrolyte, the brush plating head 3 in this embodiment is equipped with an inlet pump and an outlet pump. The inlet pump and the outlet pump are connected to the chemical tank 2 and the chemical channel through pipes, respectively. The inlet pump can draw the electrolyte in the chemical tank 2 into the chemical channel, while the outlet pump draws the electrolyte back into the chemical tank 2, thereby forming a circulating flow channel for the electrolyte.

[0055] like Figure 6 and Figure 7 As shown, in this embodiment, a plurality of shape retainers 51 are installed at intervals on the trolley frame 5. The shape retainer 51 specifically includes a threaded rod 511. The trolley frame 5 has a matching threaded hole at the position corresponding to the threaded rod 511. The threaded rod 511 can be rotated up and down in the threaded hole to adjust its height and is fixed and locked by a nut 512. A rubber pad 513 is also provided at the top of the threaded rod 511. The shaft workpiece 100 is placed on the rubber pad 513. The rubber pad 513 can provide support and protection for the shaft workpiece 100.

[0056] Preferably, since shaft-type workpieces 100 are generally large, in order to facilitate the movement of shaft-type workpieces 100, the bottom of the trolley frame 5 in this embodiment is also provided with several moving wheels 52, and a pin shaft 53 is also provided on one side of the trolley frame 5. The plating worktable 1 is provided with a pin hole 54 corresponding to the position of the pin shaft 53. When the worker pushes the trolley frame 5 to one side of the plating worktable 1, the pin shaft 53 is inserted into the pin hole 54 and the moving wheels 52 are fixed, thereby positioning the trolley frame 5.

[0057] Since the connection between the shaft workpiece 100 and the brush plating head 3 is not completely sealed after the shaft workpiece 100 is inserted into the electroplating tank 31 of the brush plating head 3, a small amount of electrolyte may overflow from the connection during the brush plating process. Therefore, a return trough 55 is also installed on the trolley frame 5. The return trough 55 is located directly below the end of the shaft workpiece 100 that needs to be brush plating. The electrolyte overflowing from the brush plating head 3 will flow into the return trough 55. The return trough 55 is equipped with a return valve 56, which is connected to the chemical tank 2 through a pipe, so as to draw the electrolyte in the return trough 55 back into the chemical tank 2 for reuse.

[0058] This invention employs a rotary brush plating structure. The shaft workpiece 100 is fixedly placed on a trolley frame 5, and the trolley frame 5 is pushed to insert the end of the shaft workpiece 100 to be plated into the electroplating tank 31 of the brush plating head 3. Then, the brush plating head 3 is driven to rotate by a drive device 4. Since the brush plating head 3 has a chemical channel connected to a chemical tank 2, during the rotation of the brush plating head 3, the electrolyte in the chemical tank 2 flows through the chemical channel into the gap between the shaft workpiece 100 and the electroplating tank 31, and continuously flows on the surface of the shaft workpiece 100 under the rotation of the drive device 4, thus achieving the purpose of brush plating. Unlike traditional brush plating equipment, the rotary brush plating method of this invention allows the surface of the shaft workpiece 100 to fully contact the electrolyte, with one end of the shaft workpiece 100 essentially immersed in the electrolyte. This solves the technical problem of uneven and discontinuous plating caused by existing electroplating brushes or pads, effectively improving the plating quality of the shaft workpiece 100.

[0059] Example 2:

[0060] This embodiment is basically the same as the structure of Embodiment 1. The main difference is that the local electroplating equipment in this embodiment uses a sealing cover instead of a telescopic sleeve. By installing a sealing cover on the outside of the position adjustment device 6, the sealing cover is preferably made of corrosion-resistant material, which can also protect the position adjustment device 6 and other components.

[0061] Example 3:

[0062] Based on Embodiment 1 or Embodiment 2, the local electroplating equipment in this embodiment is further equipped with a ventilation system. By installing a ventilation system on the brush plating workbench 1 and an exhaust system on the trolley frame 5, the ventilation system and the exhaust system are activated simultaneously during the electroplating process. The ventilation system can blow the exhaust gas toward the location of the exhaust system, while the exhaust system can remove the exhaust gas, thereby preventing the exhaust gas from corroding the components on the brush plating workbench 1.

[0063] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A local electroplating device for shaft-type workpieces, characterized in that, Includes a brush plating workbench (1) and a trolley frame (5); The brush plating workbench (1) is provided with a chemical tank (2) and several brush plating heads (3). An electroplating tank (31) is provided on one side of the brush plating head (3), and a chemical channel communicating with the electroplating tank (31) is also provided on the side wall of the brush plating head (3). The chemical tank (2) and the chemical channel are connected by a pipe to provide electrolyte to the brush plating head (3). The brush plating head (3) is also connected to a drive device (4), which provides rotational power to the brush plating head (3). The trolley frame (5) is detachably installed on one side of the electroplating workbench (1). The trolley frame (5) is used to place shaft workpieces (100). The shaft workpiece (100) inserts the end that needs to be electroplated into the electroplating tank (31) for rotational electroplating.

2. The partial electroplating equipment for shaft-type workpieces according to claim 1, characterized in that, The brush plating worktable (1) is also equipped with a position adjustment device (6). The drive device (4) and the brush plating head (3) are both installed on the position adjustment device (6) to adjust the position of the brush plating head (3) so that it corresponds to the position of the shaft workpiece (100).

3. The partial electroplating equipment for shaft-type workpieces according to claim 2, characterized in that, The position adjustment device (6) includes an X-axis adjustment assembly, a Y-axis adjustment assembly and a Z-axis adjustment assembly; The X-axis adjustment assembly includes an X-axis bracket (61) mounted on the plating worktable (1), an X-axis lead screw (62) movably mounted on the X-axis bracket (61), a first slider (63) mounted on the X-axis lead screw (62), and a first telescopic sleeve (613) sleeved on the exposed parts of the X-axis lead screw (62) before and after the first slider (63). The two ends of the first telescopic sleeve (613) are fixedly connected to one side of the X-axis bracket (61) and the first slider (63) respectively, providing protection for the X-axis lead screw (62); a first handwheel (64) is mounted on one end of the X-axis lead screw (62), and the first handwheel (64) is used to drive the first slider (63) to move along the X-axis lead screw (62); The Y-axis adjustment assembly includes a Y-axis bracket (65) mounted on the first slider (63), a Y-axis lead screw (66) mounted on the Y-axis bracket (65), a second slider (67) mounted on the Y-axis lead screw (66), and a second telescopic sleeve (614) sleeved on the exposed portions of the Y-axis lead screw (66) before and after the second slider (67). The two ends of the second telescopic sleeve (614) are fixedly connected to one side of the Y-axis bracket (65) and the second slider (67) respectively, providing protection for the Y-axis lead screw (66). A second handwheel (68) is mounted on one end of the Y-axis lead screw (66), and the second handwheel (68) is used to drive the second slider (67) to move along the Y-axis lead screw (66). The Z-axis adjustment assembly includes a Z-axis bracket (69) mounted on the second slider (67), a Z-axis lead screw (610) movably mounted on the Z-axis bracket (69), a third slider (611) mounted on the Z-axis lead screw (610), and a third telescopic sleeve (615) sleeved on the exposed parts of the Z-axis lead screw (610) before and after the third slider (611). The two ends of the third telescopic sleeve (615) are fixedly connected to one side of the Z-axis bracket (69) and the third slider (611) respectively, providing protection for the Z-axis lead screw (610). The drive device (4) and the brush plating head (3) are both mounted on the third slider (611). A third handwheel (612) is mounted on one end of the Z-axis lead screw (610). The third handwheel (612) is used to drive the third slider (611), the drive device (4) and the brush plating head (3) to move along the Z-axis lead screw (610). The first telescopic sleeve (613), the second telescopic sleeve (614) and the third telescopic sleeve (615) are all made of corrosion-resistant material.

4. The partial electroplating equipment for shaft-type workpieces according to claim 1, characterized in that, The drive device (4) is equipped with proximity switches (7) at both the upper and lower ends, and a sensing plate (8) is provided on one side of the brush plating head (3). When the brush plating head (3) rotates, the sensing plate (8) will rotate accordingly. When the sensing plate (8) rotates to above or below the driving device (4), the sensing plate (8) will sense the proximity switch (7), and the proximity switch (7) will change the rotation direction of the driving device (4).

5. The partial electroplating equipment for shaft-type workpieces according to claim 1, characterized in that, The brush plating head (3) is provided with a graphite anode (9), which is in contact with the electrolyte in the electroplating tank (31).

6. The partial electroplating equipment for shaft-type workpieces according to claim 5, characterized in that, The brush plating head (3) is equipped with an inlet pump and an outlet pump, which are connected to the chemical tank (2) and the chemical channel through pipes to form a circulating flow channel for the electrolyte.

7. The partial electroplating equipment for shaft-type workpieces according to claim 1, characterized in that, The trolley frame (5) is equipped with several retaining frames (51) at intervals. The shaft workpiece (100) is placed on the retaining frame (51), and the retaining frame (51) can be adjusted up and down to adjust the height of the shaft workpiece (100).

8. The partial electroplating equipment for shaft-type workpieces according to claim 7, characterized in that, The conformal frame (51) includes a threaded rod (511). The trolley frame (5) has a matching threaded hole at the position corresponding to the threaded rod (511). The threaded rod (511) can rotate up and down in the threaded hole and be fixed and locked by a nut (512). A rubber pad (513) is also provided at the top of the threaded rod (511). The rubber pad (513) provides support and protection for the shaft workpiece (100).

9. The partial electroplating equipment for shaft-type workpieces according to claim 1, characterized in that, The bottom of the trolley frame (5) is provided with several moving wheels (52), and a pin (53) is also provided on the side of the trolley frame (5) near the plating worktable (1). The plating worktable (1) has a pin hole (54) corresponding to the position of the pin (53). When the trolley frame (5) moves to the side of the plating worktable (1), the pin (53) can be inserted into the pin hole (54) to position the trolley frame (5).

10. The partial electroplating equipment for shaft-type workpieces according to claim 1, characterized in that, The trolley frame (5) is also equipped with a return trough (55), which is located directly below the end of the shaft workpiece (100) that needs to be brush-plated, and is used to receive electrolyte that may overflow from the brush plating head (3); the return trough (55) is also equipped with a return valve (56), which is connected to the chemical tank (2) through a pipe.

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