CN113549984A

CN113549984A - Electroplating equipment

Info

Publication number: CN113549984A
Application number: CN202110926688.6A
Authority: CN
Inventors: 李洪芳; 韩芳
Original assignee: Shifang Youhe Industrial Product Design Studio
Current assignee: Shifang Youhe Industrial Product Design Studio
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-10-26

Abstract

The invention belongs to the technical field of electroplating equipment, and particularly relates to electroplating equipment which comprises an electroplating bath, wherein a vertical partition plate is fixedly connected to the center in the electroplating bath, the electroplating bath is divided into a cleaning cavity and an electroplating cavity by the partition plate, a rectangular opening communicated with the electroplating cavity is formed in the side wall of the electroplating bath, a horizontal workbench is arranged in the electroplating cavity, the lower end of the workbench is fixedly connected with a plurality of supporting columns in contact with the bottom wall in the electroplating bath, the upper end of the workbench is rotatably connected with a cylindrical barrel for electroplating, and one side wall of the cylindrical barrel extends to the outer side of the rectangular opening. Has the advantages that: the invention uses the first transmission mechanism and the second transmission mechanism to make the plating solution in the cylinder body in a motion state, namely, the cathode in a swing state, thus increasing the working current, leading the plating solution to play the due role (generally brightness and dispersion capability) and preventing the tip and the corner from being plated and burnt.

Description

Electroplating equipment

Technical Field

The invention relates to the technical field of electroplating equipment, in particular to electroplating equipment.

Background

Electroplating is a surface processing method in which cations of a metal to be plated in a plating solution are deposited on the surface of a base metal by electrolysis using the base metal to be plated as a cathode in a salt solution containing the metal to be plated, thereby forming a plating layer. The plating performance is different from that of the base metal, and has new characteristics. The coating can be divided into protective coating, decorative coating and other functional coatings according to the functions of the coatings. The basic process of electroplating is to immerse the parts in a solution of metal salt as a cathode and a metal plate as an anode, and to deposit the required coating on the parts after direct current power supply.

For example, the Chinese patent application No. CN202010012291.1 discloses a vertical electroplating device with 2020-05-05, the structure of the device comprises an electroplating machine, a lifting handle, a rolling barrel water filtering bracket, a filter, an electric cabinet and an anode bar, wherein the electroplating machine consists of an upright case, a movable mounting rack, a cleaning brush, an electroplating device, a cathode copper fork and an electroplating bath, the electroplating machine utilizes a motor to drive an electroplating rolling barrel to rotate through a motor shaft, and the electroplating rotary drum can be neatly bound on the inner wall of the small-sized workpiece through the hardware fitting inserting strip, so that the workpiece is prevented from leaking out of the electroplating fixture, the workpiece is damaged, the electroplating solution is filtered and permeates onto the surface of the workpiece through a filter screen under the hardware fitting inserting strip in the filtering inner barrel, the electroplating efficiency is improved, and the electroplating rotary drum utilizes the sweeping mechanism to sweep and electroplate the workpiece in the hardware fitting inserting strip, so that the quality of an electroplating layer of the workpiece is improved.

The following problems still exist in the above documents: 1. the traditional electroplating equipment usually adopts a static mode when the workpiece is electroplated, but some or most of plating seeds need the cathode to be in a swinging state, so that the working current can be increased, the plating solution can play a due role (usually brightness and dispersion capacity), and the plating of tips and corners and scorching can be prevented; 2. traditional electroplating device need demolish alone and clear up after the stores pylon uses the completion, is undoubtedly that the loaded down with trivial details and the working strength that has increaseed operating personnel that has increased the operation, is unfavorable for the continuous type of equipment and uses.

To this end, we propose an electroplating apparatus to solve the above problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides electroplating equipment.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electroplating device comprises an electroplating bath, wherein a vertical clapboard is fixedly connected to the center in the electroplating bath, the electroplating bath is divided into a cleaning cavity and an electroplating cavity by the clapboard, a rectangular opening communicated with the electroplating cavity is formed in the side wall of the electroplating bath, a horizontal workbench is arranged in the electroplating cavity, the lower end of the workbench is fixedly connected with a plurality of supporting columns in contact with the bottom wall in the electroplating bath, the upper end of the workbench is rotatably connected with a cylindrical barrel for electroplating, one side wall of the cylindrical barrel extends to the outer side of the rectangular opening, an L-shaped bracket is fixedly connected to the side wall of the electroplating bath at the lower side of the rectangular opening, the L-shaped bracket is correspondingly arranged at the outer side of the cylindrical barrel, the upper end of the L-shaped bracket extends to the upper side of the rectangular opening and is fixedly connected with an arc-shaped top plate, the upper end of the arc-shaped top plate is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a vertical rotating shaft, the lower end of the rotating shaft is rotatably connected with the bottom wall of the L-shaped bracket, the rotating shaft at the lower side of the arc-shaped top plate is connected with the cylindrical barrel through a first transmission mechanism, the bottom wall in the cylindrical barrel is rotatably connected with a disc, the lower end of the disc is fixedly connected with a vertical shaft, one end of the vertical shaft, which is far away from the disc, penetrates through the cylindrical barrel and the workbench and is rotatably connected with the bottom wall in the electroplating bath, the vertical shaft at the lower side of the workbench is connected with the rotating shaft through a second transmission mechanism, the center of the upper end of the disc is fixedly connected with a vertical central anode group, a plurality of heating mechanisms are uniformly distributed on the side wall of the disc, the upper ends of the electroplating bath at the two sides of the partition plate are fixedly connected with mounting seats, the upper ends of the mounting seats are connected with L-shaped bases, the upper ends of the two L-shaped bases are fixedly connected with vertical supporting rods, and the upper ends of the two supporting rods are fixedly connected with a horizontal strip-shaped plate, the both ends of bar shaped plate extend to the upside in electroplating chamber and washing chamber respectively, the bar opening has been seted up to the upper end of bar shaped plate, it is connected with the horizontally threaded rod to rotate on the bar opening inner wall, be provided with the second motor of being connected with the threaded rod on the lateral wall of bar shaped plate, the outside screw thread of threaded rod has cup jointed trapezoidal piece, and the lower extreme of trapezoidal piece is provided with work piece mechanism.

In the electroplating apparatus, the first transmission mechanism includes a cylindrical gear fixedly sleeved on the outer side wall of the rotating shaft, a gear ring meshed with the cylindrical gear is fixedly sleeved on the outer side wall of the cylindrical barrel, and the gear ring is correspondingly arranged in the center of the side wall of the cylindrical barrel.

In the electroplating apparatus, the second transmission mechanism includes a first belt wheel fixedly sleeved on the outer side wall of the vertical shaft, a second belt wheel corresponding to the first belt wheel is fixedly sleeved on the outer side wall of the rotating shaft, the first belt wheel is connected with the second belt wheel through a belt, and the outer diameter value of the first belt wheel is greater than that of the second belt wheel.

In foretell electroplating device, the quantity of heating mechanism is four, heating mechanism includes the diaphragm of fixed connection on the disc lateral wall, and four diaphragms evenly set up on the lateral wall of disc, the vertical electric heating pipe of upper end fixedly connected with of diaphragm, and the outside of electric heating pipe has cup jointed transparent heat conduction cover.

In the electroplating equipment, the upper end of the mounting seat is provided with a chute, the lower end of the L-shaped base is connected in the chute in a sliding manner, the outer side wall of the mounting seat is in threaded connection with a fastening bolt fixed with the L-shaped base, and the side wall of the mounting seat is provided with a plurality of threaded holes.

In foretell electroplating device, work piece mechanism includes the hydraulic stem of fixed connection at trapezoidal piece lower extreme, the piston end fixedly connected with cross support of hydraulic stem, and all slide on four stabilizer blade lateral walls of cross support and cup jointed L shape loop bar, four be connected with same columniform stores pylon between the L shape loop bar, the lower extreme fixedly connected with of stores pylon organizes the annular bottom plate that corresponds with central anode, can be used to articulate a plurality of work pieces of treating electroplating on the lateral wall of stores pylon.

In foretell electroplating device, four couples of upper end fixedly connected with of stores pylon, fixedly connected with and the horizontal pole that the couple corresponds on the lateral wall of L shape loop bar, and the fixed cover has connect with the adsorbed powerful magnet of couple on the lateral wall of horizontal pole, the lower extreme central thread of cross support is connected with the fastening screw who is fixed with the hydraulic stem piston end.

In the electroplating apparatus, the central anode set is correspondingly disposed at the center of the upper end of the disk, the central anode set is electrically connected to an external power anode, and the workpiece in the hanger can be electrically connected to an external power cathode.

Compared with the prior art, this electroplating device's advantage lies in:

1. in the invention, the first transmission mechanism and the second transmission mechanism are utilized to enable the electroplating solution in the cylindrical barrel to be in a moving state, namely, the cathode is in a swinging state, so that the working current can be increased, the electroplating solution can play a proper role (generally, brightness and dispersion capacity), and the plating and scorching of tips and corners can be prevented.

2. The electric heating pipe can be used as a stirring element and a heating element at the same time, and can be provided with a heating device for the electroplating bath, so that the temperature requirement of some electroplating baths in use is met, and the applicability of the equipment is improved.

3. The hanging rack is not required to be disassembled and assembled after being used, and the position of the hanging rack can be adjusted by controlling the second motor and the hydraulic rod, so that the hanging rack can smoothly enter the cleaning cavity to be cleaned, the processing efficiency is relatively improved, and the continuous processing use is facilitated.

Drawings

FIG. 1 is a schematic view of an external structure of an electroplating apparatus according to the present invention;

FIG. 2 is a bottom view of an external structure of an electroplating apparatus according to the present invention;

FIG. 3 is a side view of an electroplating apparatus according to the present invention;

FIG. 4 is a side bottom view of a cylindrical barrel of an electroplating apparatus according to the present invention;

FIG. 5 is a sectional view of a cylindrical barrel structure of an electroplating apparatus according to the present invention;

FIG. 6 is an enlarged view of a portion A of FIG. 4;

fig. 7 is a structural diagram of an L-shaped bracket, an arc-shaped top plate, a first motor and a rotating shaft of the electroplating device according to the invention.

In the figure, 1 electroplating bath, 2 work tables, 3 support columns, 4 cylindrical bodies, 5L-shaped supports, 6 arc-shaped top plates, 7 first motors, 8 rotating shafts, 9 circular discs, 10 vertical shafts, 11 central anode groups, 12 mounting seats, 13L-shaped bases, 14 support rods, 15 strip-shaped plates, 16 threaded rods, 17 second motors, 18 trapezoidal blocks, 19 cylindrical gears, 20 toothed rings, 21 first belt wheels, 22 second belt wheels, 23 belts, 24 transverse plates, 25 electric heating pipes, 26 hydraulic rods, 27 cross-shaped supports, 28L-shaped loop rods, 29 hangers and 30 transverse rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples

Referring to fig. 1-7, an electroplating apparatus comprises an electroplating bath 1, a vertical partition board is fixedly connected to the center in the electroplating bath 1, the electroplating bath 1 is divided into a cleaning cavity and an electroplating cavity by the partition board, a rectangular opening communicated with the electroplating cavity is formed in the side wall of the electroplating bath 1, a horizontal workbench 2 is arranged in the electroplating cavity, a plurality of support columns 3 contacted with the bottom wall in the electroplating bath 1 are fixedly connected to the lower end of the workbench 2, a cylindrical barrel 4 for electroplating is rotatably connected to the upper end of the workbench 2, one side wall of the cylindrical barrel 4 extends to the outer side of the rectangular opening, an L-shaped bracket 5 is fixedly connected to the side wall of the electroplating bath 1 at the lower side of the rectangular opening, the L-shaped bracket 5 is correspondingly arranged at the outer side of the cylindrical barrel 4, the upper end of the L-shaped bracket 5 extends to the upper side of the rectangular opening and is fixedly connected with an arc-shaped top plate 6, a first motor 7 is fixedly connected to the upper end of the arc-shaped top plate 6, output fixedly connected with vertical pivot 8 of first motor 7, and the lower extreme of pivot 8 rotates with the diapire of L shape support 5 to be connected, be connected through a drive mechanism between pivot 8 and the cylinder barrel 4 of arc roof 6 downside, it is specific, a drive mechanism is including the fixed cylindrical gear 19 that cup joints on the 8 lateral walls of pivot, fixed cover has been cup jointed on the lateral wall of cylinder barrel 4 with the ring gear 20 of cylindrical gear 19 meshing, and ring gear 20 corresponds the setting at the lateral wall central authorities of cylinder barrel 4.

Further, the inner bottom wall of the cylindrical barrel 4 is rotatably connected with a disc 9, the lower end of the disc 9 is fixedly connected with a vertical shaft 10, one end, far away from the disc 9, of the vertical shaft 10 penetrates through the cylindrical barrel 4 and the workbench 2 and is rotatably connected with the inner bottom wall of the electroplating bath 1, the vertical shaft 10 on the lower side of the workbench 2 is connected with the rotating shaft 8 through a second transmission mechanism, the second transmission mechanism comprises a first belt wheel 21 fixedly sleeved on the outer side wall of the vertical shaft 10, a second belt wheel 22 corresponding to the first belt wheel 21 is fixedly sleeved on the outer side wall of the rotating shaft 8, the first belt wheel 21 is connected with the second belt wheel 22 through a belt 23, and the outer diameter value of the first belt wheel 21 is larger than that of the second belt wheel 22.

Further, the upper end central authorities fixedly connected with vertical central anode group 11 of disc 9, and the equipartition has a plurality of heating mechanism on the lateral wall of disc 9, the quantity of heating mechanism is four, heating mechanism includes diaphragm 24 of fixed connection on the lateral wall of disc 9, and four diaphragm 24 evenly set up on the lateral wall of disc 9, the vertical electric heating pipe 25 of upper end fixedly connected with of diaphragm 24, and the outside of electric heating pipe 25 has cup jointed transparent heat conduction cover, electric heating pipe 25 and outside controller electric connection, the temperature that can the corresponding control used, transparent heat conduction cover can play the sealed effect of separation to electric heating pipe 25 in addition, avoid the plating solution to cause the condition of damage to electric heating pipe 25.

Wherein, the upper ends of the plating baths 1 at both sides of the clapboard are fixedly connected with a mounting seat 12, the upper end of the mounting seat 12 is connected with an L-shaped base 13, concretely, the upper end of the mounting seat 12 is provided with a chute, the lower end of the L-shaped base 13 is connected in the chute in a sliding way, the outer side wall of the mounting seat 12 is in threaded connection with a fastening bolt fixed with the L-shaped base 13, the side wall of the mounting seat 12 is provided with a plurality of threaded holes for facilitating the fine adjustment and fixation of the position of the L-shaped base 13, the upper ends of the two L-shaped bases 13 are fixedly connected with vertical supporting rods 14, the upper ends of the two supporting rods 14 are fixedly connected with a same horizontal strip-shaped plate 15, the two ends of the strip-shaped plate 15 respectively extend to the upper sides of the plating chamber and the cleaning chamber, the upper end of the strip-shaped plate 15 is provided with a strip-shaped opening, the inner wall of the strip-shaped opening is rotatably connected with a horizontal threaded rod 16, the side wall of the strip-shaped plate 15 is provided with a second motor 17 connected with the threaded rod 16, the outer side of the threaded rod 16 is in threaded sleeve connection with a trapezoidal block 18, and the lower end of the trapezoidal block 18 is provided with a workpiece mechanism.

Wherein, the workpiece mechanism comprises a hydraulic rod 26 fixedly connected at the lower end of the trapezoidal block 18, a cross-shaped bracket 27 is fixedly connected at the piston end of the hydraulic rod 26, the outer side walls of four support legs of the cross-shaped bracket 27 are all sleeved with L-shaped loop bars 28 in a sliding manner, a same cylindrical hanging rack 29 is connected between the four L-shaped loop bars 28, the lower end of the hanging rack 29 is fixedly connected with an annular bottom plate corresponding to the central anode group 11, the outer side wall of the hanging rack 29 can be used for hanging a plurality of workpieces to be electroplated, specifically, the upper end of the hanging rack 29 is fixedly connected with four hooks, a cross rod 30 corresponding to the hooks is fixedly connected on the side wall of the L-shaped loop bars 28, a strong magnet adsorbed by the hooks is fixedly sleeved on the outer side wall of the cross rod 30, the central thread at the lower end of the cross-shaped bracket 27 is connected with a fastening screw fixed at the piston end of the hydraulic rod 26, the central anode group 11 is correspondingly arranged at the center of the upper end of the disc 9, the central anode set 11 is electrically connected to the external power anode, and the workpiece in the rack 29 can be electrically connected to the external power cathode.

In the invention, before the electroplating operation is carried out on the workpiece, the workpiece can be firstly hung on the outer side wall of the hanging frame 29 and electrically connected with the cathode of an external power supply, then the plating solution is injected into the cylindrical barrel 4 and the central anode group 11 is electrically connected with the anode of the external power supply; when the electroplating operation is carried out, the stretching of the hydraulic rod 26 can be controlled to enable the hanger 29 to be smoothly introduced into the cylindrical barrel 4 for the electroplating operation, in the electroplating process, the first motor 7 is started to enable the rotating shaft 8 to rotate, and under the use of the first transmission mechanism, the cylindrical barrel 4 can be enabled to carry out circular motion, so that electroplating solution in the cylindrical barrel 4 is in a motion state, meanwhile, the second transmission mechanism also works correspondingly to enable the circular disk 9 in the cylindrical barrel 4 to carry out circular motion, and the electroplating solution can be stirred under the action of the plurality of vertical electric heating pipes 25, in addition, when the electroplating solution needs to be heated, the temperature of the electric heating pipes 25 can be correspondingly adjusted through an external controller, so that the use requirement of the temperature during the electroplating can be met; after the electroplating is accomplished, can control the flexible upside that makes stores pylon 29 remove to cylindrical barrel 4 of hydraulic stem 26, and then make the work piece break away from the contact with the plating solution, can take off the work piece so that subsequent use, then start second motor 17, make threaded rod 16 rotate and drive the upside that trapezoidal piece 18 in its outside moved to the washing chamber, the hydraulic stem 26 is controlled again to make the entering that stores pylon 29 can be smooth to wash the operation to washing intracavity, the efficiency of processing has been improved relatively, so that subsequent use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An electroplating device comprises an electroplating bath (1), wherein a vertical clapboard is fixedly connected to the center in the electroplating bath (1), and the electroplating bath (1) is divided into a cleaning cavity and an electroplating cavity by the clapboard, and is characterized in that a rectangular opening communicated with the electroplating cavity is formed in the side wall of the electroplating bath (1), a horizontal workbench (2) is arranged in the electroplating cavity, the lower end of the workbench (2) is fixedly connected with a plurality of supporting columns (3) contacted with the bottom wall in the electroplating bath (1), the upper end of the workbench (2) is rotatably connected with a cylindrical barrel (4) for electroplating, one side wall of the cylindrical barrel (4) extends to the outside of the rectangular opening, an L-shaped bracket (5) is fixedly connected to the side wall of the electroplating bath (1) at the lower side of the rectangular opening, and the L-shaped bracket (5) is correspondingly arranged at the outside of the cylindrical barrel (4), the upper end of the L-shaped support (5) extends to the upper side of the rectangular opening and is fixedly connected with an arc-shaped top plate (6), the upper end of the arc-shaped top plate (6) is fixedly connected with a first motor (7), the output end of the first motor (7) is fixedly connected with a vertical rotating shaft (8), the lower end of the rotating shaft (8) is rotatably connected with the bottom wall of the L-shaped support (5), the rotating shaft (8) at the lower side of the arc-shaped top plate (6) is connected with the cylindrical barrel (4) through a first transmission mechanism, a disc (9) is rotatably connected on the inner bottom wall of the cylindrical barrel (4), the lower end of the disc (9) is fixedly connected with a vertical shaft (10), one end, far away from the disc (9), of the vertical shaft (10) penetrates through the cylindrical barrel (4) and the workbench (2) and is rotatably connected with the inner bottom wall of the electroplating bath (1), the vertical shaft (10) at the lower side of the workbench (2) is connected with the rotating shaft (8) through a second transmission mechanism, the central part of the upper end of the disc (9) is fixedly connected with a vertical central anode group (11), the side wall of the disc (9) is uniformly provided with a plurality of heating mechanisms, the upper ends of the electroplating baths (1) on the two sides of the clapboard are fixedly connected with mounting seats (12), the upper ends of the mounting seats (12) are connected with L-shaped bases (13), the upper ends of the two L-shaped bases (13) are fixedly connected with vertical supporting rods (14), the upper ends of the two supporting rods (14) are fixedly connected with a same horizontal strip-shaped plate (15), the two ends of the strip-shaped plate (15) respectively extend to the upper sides of an electroplating cavity and a cleaning cavity, the upper end of the strip-shaped plate (15) is provided with a strip-shaped opening, the inner wall of the strip-shaped opening is rotatably connected with a horizontal threaded rod (16), the side wall of the strip-shaped plate (15) is provided with a second motor (17) connected with the threaded rod (16), the outer side of the threaded rod (16) is in threaded sleeve connection with a trapezoidal block (18), and a workpiece mechanism is arranged at the lower end of the trapezoidal block (18).

2. An electroplating apparatus according to claim 1, wherein the first transmission mechanism comprises a cylindrical gear (19) fixedly sleeved on the outer side wall of the rotating shaft (8), a gear ring (20) engaged with the cylindrical gear (19) is fixedly sleeved on the outer side wall of the cylindrical barrel (4), and the gear ring (20) is correspondingly arranged in the center of the side wall of the cylindrical barrel (4).

3. The electroplating apparatus according to claim 2, wherein the second transmission mechanism comprises a first pulley (21) fixedly sleeved on the outer side wall of the vertical shaft (10), a second pulley (22) corresponding to the first pulley (21) is fixedly sleeved on the outer side wall of the rotating shaft (8), the first pulley (21) and the second pulley (22) are connected through a belt (23), and the outer diameter of the first pulley (21) is larger than that of the second pulley (22).

4. The electroplating apparatus according to claim 3, wherein the number of the heating mechanisms is four, the heating mechanisms comprise transverse plates (24) fixedly connected to the side walls of the circular plate (9), the four transverse plates (24) are uniformly arranged on the outer side walls of the circular plate (9), the upper ends of the transverse plates (24) are fixedly connected with vertical electric heating tubes (25), and the outer sides of the electric heating tubes (25) are sleeved with transparent heat conducting covers.

5. The electroplating equipment according to claim 1, wherein the upper end of the mounting seat (12) is provided with a sliding groove, the lower end of the L-shaped base (13) is slidably connected in the sliding groove, the outer side wall of the mounting seat (12) is in threaded connection with a fastening bolt fixed with the L-shaped base (13), and the side wall of the mounting seat (12) is provided with a plurality of threaded holes.

6. The electroplating equipment according to claim 1, wherein the workpiece mechanism comprises a hydraulic rod (26) fixedly connected to the lower end of the trapezoidal block (18), a cross-shaped bracket (27) is fixedly connected to the piston end of the hydraulic rod (26), the outer side walls of four support legs of the cross-shaped bracket (27) are respectively sleeved with an L-shaped loop bar (28) in a sliding manner, a cylindrical hanging rack (29) is connected between the four L-shaped loop bars (28), the lower end of the hanging rack (29) is fixedly connected with an annular bottom plate corresponding to the central anode group (11), and the outer side wall of the hanging rack (29) can be used for hanging a plurality of workpieces to be electroplated.

7. The electroplating equipment according to claim 6, wherein four hooks are fixedly connected to the upper end of the hanger (29), a cross bar (30) corresponding to the hooks is fixedly connected to the side wall of the L-shaped loop bar (28), a strong magnet attracted to the hooks is fixedly sleeved on the outer side wall of the cross bar (30), and a fastening screw fixed to the piston end of the hydraulic rod (26) is in threaded connection with the center of the lower end of the cross-shaped support (27).

8. An electroplating apparatus according to claim 6, wherein the central anode set (11) is correspondingly arranged at the center of the upper end of the disc (9), the central anode set (11) is electrically connected with an external power supply anode, and the workpiece in the rack (29) can be electrically connected with an external power supply cathode.