Workpiece cleaning apparatus

Abstract

The application discloses a workpiece cleaning device, which comprises a support for supporting the whole device, an adjusting plate hinged at one end to the support and swinging around the hinged shaft under the drive of an adjusting drive unit, a roller installed on the adjusting plate, the axis of the roller being perpendicular to the plate surface of the adjusting plate, one end of the roller being an open end and the other end being a closed end, the open end being arranged obliquely upward, the closed end being rotatably fixed to the adjusting plate, a roller drive unit installed on the support, and the roller drive unit driving the roller to rotate through a gear. The workpiece cleaning device can realize automatic and efficient cleaning of workpieces such as Nd-Fe-B magnets before electroplating, improves the production efficiency of products, and is stable in cleaning quality, easy to operate and simple to control.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electroplating equipment, in particular to a workpiece cleaning device. BACKGROUND

[0002] The neodymium iron boron magnet is mainly composed of a main phase, a neodymium-rich phase and a boron-rich phase. The neodymium-rich phase is generally distributed at the grain boundary. The activity of neodymium is relatively strong, and the corrosion potential of the neodymium-rich phase is relatively low. In addition, the surface of the neodymium iron boron magnet material is loose and porous, and is prone to corrosion. The surface of the neodymium iron boron material has many defects before electroplating, such as corrosion, oxidation, impurities, etc. Therefore, the workpiece of the neodymium iron boron material needs to be strictly pretreated and cleaned before electroplating. The pickling solution is used to wash away the corrosion and oxidation on the surface of the material, especially the impurities remaining in the holes of the workpiece body. The key to the surface treatment technology of the neodymium iron boron magnet is the pretreatment process. However, the existing main operation mode is manual cleaning, which depends on people greatly, and the quality of the product fluctuates. At the same time, the pretreatment process is complex, occupies a lot of time, and the labor cost accounts for a high proportion.

[0003] To solve the problem of personnel dependence and unstable quality, the industry is also promoting the mechanized cleaning scheme. For example, Chinese patent document CN211888211U discloses an ultrasonic drum equipment for workpiece cleaning, which includes an outer drum and an inner drum. The inner drum is placed inside the outer drum, and water infiltration holes are provided on the surface of the inner drum. The inner drum and the outer drum are coaxially arranged and their axes are horizontal. The problem to be solved is the splashing and leakage of liquid medium. Chinese patent document CN215887258U discloses a drum device for workpiece cleaning or electroplating pretreatment. Two drums are arranged between three interval end plates. The two drums are driven by the same driving shaft through gear engagement. The axes of the two drums are on the same straight line and are horizontally arranged. The drum equipment of the above two electroplating workpiece cleaning devices adopts a horizontal drum axis. The drum can only rotate horizontally around its axis. The rotation form of the drum is relatively single. For some workpieces with complex structure or many small holes, the dirt in the deep holes is not easy to fall off and discharge. The reason is that the liquid exchange is not sufficient due to the single rotation of the drum during cleaning in the above-mentioned liquid. The impurities cannot fall off from the surface of the workpiece in time. In addition, the neodymium iron boron residue washed away after pickling is hung on the surface of the neodymium iron boron, especially in some holes, which is difficult to clean uniformly, affecting the cleaning quality of the workpiece before electroplating. Moreover, the drum for containing the workpiece is a closed structure. The end cover of the drum needs to be opened to take and place the workpiece. The process is relatively complicated, and the processing efficiency is low. Therefore, it is urgent to develop a cleaning equipment for workpieces before electroplating to solve the above problems. SUMMARY

[0004] To this end, the technical problem to be solved by the present application is to overcome the above-mentioned deficiencies existing in the prior art workpiece cleaning device before electroplating, and further to provide a workpiece cleaning device with good cleaning effect and convenient workpiece taking and placing.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A workpiece cleaning device comprises a support for supporting the entire device, an adjusting plate hinged at one end to the support, the adjusting plate oscillating around its hinge axis under the drive of an adjusting drive unit, the hinge axis being parallel or perpendicular to the horizontal plane, a roller mounted on the adjusting plate, the axis of the roller being perpendicular to the plate surface of the adjusting plate, one end of the roller being an open end and the other end being a closed end, the open end being arranged obliquely upward, the closed end being rotatably fixed to the adjusting plate, a roller drive unit mounted on the support, the roller drive unit driving the roller to rotate through a gear.

[0007] Preferably, a cleaning auxiliary assembly for improving the cleaning degree of the workpiece is arranged on the inner side or outer wall of the roller.

[0008] Preferably, the cleaning auxiliary assembly is at least one of an ultrasonic cleaning auxiliary assembly, a high-pressure gas cleaning auxiliary assembly, a high-pressure liquid sputtering cleaning auxiliary assembly, a cleaning brush cleaning auxiliary assembly, and an ultrasonic rod cleaning auxiliary assembly.

[0009] Preferably, the cleaning auxiliary assembly is an ultrasonic cleaning auxiliary assembly, which is mounted in the bottom or inner cavity of the roller.

[0010] Preferably, the ultrasonic cleaning auxiliary assembly comprises an ultrasonic generator and a transducer, and the terminal of the ultrasonic cleaning auxiliary assembly is guided to the outside of the roller through a cable.

[0011] Preferably, an adjustable transmission gear is fixedly connected to the bottom of the roller, the teeth of the adjustable transmission gear meshing with the teeth of a transmission gear fixed to the support, the teeth of the adjustable transmission gear being adapted to always mesh with the teeth of the transmission gear when the adjusting plate oscillates at a predetermined angle.

[0012] Preferably, at least one transmission gear is provided, which is driven by the motor of the roller drive unit.

[0013] Preferably, a hollow shaft is arranged at the bottom of the roller, and the ultrasonic cleaning auxiliary assembly is arranged in the hollow shaft close to the bottom of the roller.

[0014] Preferably, a hollow shaft is arranged at the center of the bottom of the drum, one end of the hollow shaft extends into the drum, and the other end of the hollow shaft extends away from the bottom wall of the drum; the ultrasonic cleaning auxiliary assembly is installed in the hollow shaft and located in the inner cavity of the drum; the hollow shaft is in rotating sealing fit with the drum bottom.

[0015] Preferably, the hollow shaft is fixed relative to the adjusting plate or rotates synchronously or asynchronously with the drum.

[0016] Preferably, the opening end or the opening end and the bottom end of the drum are gradually narrowed relative to the middle end.

[0017] Preferably, the cross section of the drum is polygonal, circular or elliptical structure.

[0018] Preferably, an outwardly extending rotating shaft is arranged at the center of the bottom of the drum, the rotating shaft is installed in the shaft hole on the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole is fixed through locking device.

[0019] Preferably, a cathode head for electroplating of workpieces is arranged in the drum.

[0020] Preferably, the adjusting plate is arranged at an angle to the vertical direction; the preset inclination angle of the adjusting plate to the vertical direction is 0-60 degrees.

[0021] Preferably, the up-down swing angle of the adjusting plate is less than or equal to 45 degrees.

[0022] Preferably, the axis of the articulated shaft is parallel or perpendicular to the horizontal plane, or the articulated shaft is a spherical pair articulated shaft.

[0023] Advantages of the present application:

[0024] The workpiece cleaning device of the present application can realize automatic and efficient cleaning of neodymium iron boron magnets and other workpieces before electroplating, solve the problems of unstable manual cleaning and unclean cleaning of existing automatic cleaning technology, improve product production efficiency, reduce the number of production personnel, reduce production cost for production enterprises, and stabilize cleaning quality. It has a good promoting effect on the realization of full sequence automation of neodymium iron boron magnet electroplating process, and the workpiece cleaning device of the present application is easy to operate and simple to control. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to make the content of the present application more easily understood, the present application will be further described in detail below with reference to the drawings, in which:

[0026] Figure 1 is a first embodiment structure schematic view of the workpiece cleaning device of the present application;

[0027] Figure 2 is a structural schematic diagram of a second embodiment of the workpiece cleaning device of the present application.

[0028] The reference signs in the drawings are indicated as:

[0029] 1 - bracket, 2 - adjusting plate; 20 - hinged shaft; 3 - roller; 30 - rotating shaft; 31 - open end; 32 - closed end; 4 - roller driving unit; 40 - motor; 41 - first transmission gear; 42 - second transmission gear; 43 - third transmission gear; 5 - ultrasonic cleaning auxiliary assembly; 6 - adjustable transmission gear; 7 - hollow shaft; 8 - locking screw device. DETAILED DESCRIPTION

[0030] Referring to Figure 1A workpiece cleaning device comprises a support 1 for supporting the whole device, which is fixed vertically on a supporting surface (such as the ground), and is welded into a panel shape by a steel structure, or is made of an end plate with appropriate thickness and strength; an adjusting plate 2, one end of which is hinged to the support 1, and which swings around its hinge shaft 20 under the drive of an adjusting drive unit, which can be in any other form of external force, such as a cam mechanism drive mechanism, a connecting rod drive mechanism, etc., and the power source can be in the form of a motor, a pneumatic cylinder, an oil cylinder, etc., and the axis of the hinge shaft 20 is parallel or perpendicular to the horizontal plane; when the hinge shaft of the adjusting plate is parallel to the horizontal plane, the adjusting plate swings up and down around its hinge shaft, and when the hinge shaft of the adjusting plate is perpendicular to the horizontal plane, the adjusting plate swings left and right around its hinge shaft; both of the two swinging forms of the adjusting plate can promote the cleaning quality of the workpiece, and the adjusting plate is preferably swung up and down, and of course the hinge shaft 20 can be set as a spherical pair hinge shaft, to realize more dimensional swinging or rotation; a roller 3 is installed on the adjusting plate 2, the axis of the roller 3 is perpendicular to the plate surface of the adjusting plate 2, one end of the roller 3 is an open end 31, and the other end is a closed end 32; the open end 31 is arranged obliquely upward, and the closed end 32 is rotatably fixed on the adjusting plate, that is, the closed end of the roller 32 is fixed on the adjusting plate 2 through a bearing or the like structure, and the whole roller can rotate around its bottom rotating shaft, which is coaxially arranged with the roller; a roller drive unit 4 is installed on the support 1, and is preferably driven by a motor, which drives the roller 4 to rotate through a gear. The workpiece cleaning device of the embodiment can not only realize the rotation of the roller around its axis to accelerate the cleaning of the workpiece in the roller, but also drive the swinging of the adjusting plate around its hinge shaft, and further drive the roller to swing up and down or left and right, to further intensify the cleaning and flushing of the workpiece by the cleaning medium solution in the roller, promote the falling of the dirt and attachments on the surface and holes of the workpiece, and greatly improve the cleaning cleanliness of the workpiece.

[0031] The adjusting plate 2 of the present application is arranged at an angle with the vertical direction; the preset inclination angle of the adjusting plate 2 with the vertical direction is 0-60 degrees, and the up and down swinging angle of the adjusting plate is less than or equal to 45 degrees, so as to utilize the driving force sufficiently, improve the cleaning effect, and avoid the situation that the swinging angle is too large and the power is not enough.

[0032] In order to further improve the cleaning degree of the workpiece, the inner side or outer wall of the drum 3 is provided with a cleaning auxiliary assembly for improving the cleaning degree of the workpiece; the cleaning auxiliary assembly can be one or more than two of an ultrasonic cleaning auxiliary assembly, a high-pressure gas cleaning auxiliary assembly, a high-pressure liquid sputtering cleaning auxiliary assembly, a cleaning brush cleaning auxiliary assembly, and an ultrasonic rod cleaning auxiliary assembly, thereby further improving the pre-cleaning degree of the workpiece to be electroplated.

[0033] The preferred cleaning auxiliary assembly of the present embodiment is an ultrasonic cleaning auxiliary assembly 5, which can be installed in the bottom of the drum 3 (as shown in Figure 1 ) or in the inner cavity (as shown in Figure 2 ) to improve the ultrasonic cleaning effect on the workpiece. The ultrasonic cleaning auxiliary assembly of the present embodiment includes an ultrasonic generator, a transducer, and other components. The terminal of the ultrasonic cleaning auxiliary assembly is guided to the outside of the drum through a cable.

[0034] The bottom of the drum 3 is fixedly connected with an adjustable transmission gear 6, which can be in a circular structure or a circular ring structure, and is fixed to the bottom of the drum 3 by welding or bolt connection. The tooth shape of the adjustable transmission gear 6 is helical, and is engaged with the gear teeth of the transmission gear fixed on the support 1. The adjustable transmission gear 6 is always engaged with the transmission gear on the support 1 when adjusting the inclination angle or swing angle of the adjusting plate within a predetermined angle, thereby ensuring the stability of power transmission. Referring to Figure 1 , three transmission gears are provided on the support 1, which are engaged in order from top to bottom, namely a first transmission gear 41, a second transmission gear 42, and a third transmission gear 43. The first transmission gear 41 is engaged with the driving gear installed at the output shaft end of the power source motor 40 of the drum driving unit 4, and the third transmission gear 43 is engaged with the adjustable transmission gear 6. The multi-stage gear transmission not only ensures the accuracy of power transmission, but also facilitates adjustment and installation, and can adapt to the engagement state of the adjustable transmission gear when the adjusting plate swings within a predetermined angle.

[0035] Referring to Figure 1 , the preferred embodiment structure of the present application is shown. The ultrasonic cleaning auxiliary assembly 5 is installed in the cavity portion of a hollow shaft 7 provided at the bottom of the drum, and is arranged close to one side of the drum bottom. The hollow shaft 7 of the present embodiment has two hollows. The first part is a hollow structure at the shaft center, which is used for the rotating shaft at the bottom of the drum to pass through and then be fixed on the adjusting plate. The second part of the hollow shaft 7 is a hollow cavity structure, and the ultrasonic cleaning auxiliary assembly 5 is installed in the hollow cavity. One set or at least two sets of ultrasonic cleaning auxiliary assemblies 5 can be installed in the hollow cavity of the hollow shaft body according to the need.

[0036] See Figure 2 In the above Figure 1 Based on the preferred embodiment shown, in this embodiment, a hollow shaft 7 is provided at the center of the bottom of the drum 4. One end of the hollow shaft 7 extends into the interior of the drum 4, and the other end extends away from the bottom wall of the drum 3. The structure of the hollow shaft 7 is similar to a cylindrical shaft with sealed edges at both ends. The ultrasonic cleaning auxiliary component (in Figure 2 (As shown in the middle) It is installed in the inner cavity of the hollow shaft 7; the hollow shaft 7 and the bottom of the drum are in a rotational sealing fit, that is, when the drum is driven to rotate, the hollow shaft 7 is still fixed relative to the adjusting plate and does not rotate synchronously with the drum.

[0037] The above Figure 1 and Figure 2 Both structural forms shown can be used to fix the hollow shaft and roller onto the adjusting plate 2 using a locking device, such as a nut. Figure 1 In the illustrated embodiment, a rotating shaft 30 can be provided at the center of the bottom end of the roller. The free end of the rotating shaft 30 passes through the hollow center of the hollow shaft 7 and extends to the side of the adjusting plate 2 away from the roller, and is then locked and fixed by the locking screw device 8. Figure 2 In the embodiment shown, the rotating shaft 30 at the bottom of the roller 3 and the bottom wall of the roller can be configured as a hollow structure. The hollow shaft 7 then passes through the inner cavity of the roller, through the rotating shaft 30 and the bottom wall of the roller configured as a hollow structure, and extends to the side of the adjusting plate 2 away from the roller. It is then fixed by the locking device 8. At this time, the hollow shaft 7 and the rotating shaft 30 and the bottom wall of the roller are in a rotational sealing fit so that the roller can rotate smoothly.

[0038] exist Figure 1 and Figure 2 In the two specific embodiments shown, the hollow shaft 7 that mounts the ultrasonic cleaning auxiliary components does not rotate with the drum 3. In other embodiments, the hollow shaft 7 can also be configured to rotate synchronously with the drum 3. The installation method of the hollow shaft 7 and the drum 3 rotating synchronously or asynchronously, as well as the required installation accessories, are common knowledge to those skilled in the art and will not be described in detail here.

[0039] Because the roller opening of this invention adopts an upwardly inclined open design, this structure greatly facilitates the loading and unloading of workpieces. However, to avoid liquid splashing during roller rotation, the... Figure 1 and Figure 2 In the two embodiments shown, the opening and bottom ends of the roller 3 gradually narrow relative to its middle end, and the entire roller has a structure similar to a waist drum. The cross-section of the roller 3 is polygonal, circular, or elliptical, and preferably a regular hexagonal structure.

[0040] The material of the drum and related parts of the application can be PP, plastic, stainless steel, etc., and part of the structure can be the above-mentioned materials.

[0041] The size of the ultrasonic cleaning auxiliary assembly is not limited, and the structure can be rectangular or circular, the internal vibrator can be double-row or double-row, etc., and the two ends of the ultrasonic assembly are not limited to square clamping, but can be circular or other forms for fixing.

[0042] The hollow shaft of the ultrasonic cleaning auxiliary assembly can also be fixed on the adjusting plate by other ways when the drum rotates, as long as it can achieve the purpose of fixing and keeping the drum rotating, and the specific structure form is not limited.

[0043] The material of the ultrasonic cleaning auxiliary assembly can be stainless steel, or other materials, and the non-conductive material can be selected for use in the electroplating tank to realize the full-process automation of pre-treatment and electroplating.

[0044] By adding a cathode head that can conduct electricity inside the drum, automatic pre-treatment and automatic electroplating can be realized.

[0045] The wire protection tube of the ultrasonic cleaning auxiliary assembly of the application is preferably an integral welded structure, and in other embodiments, it can also be connected by a hose, etc., and needs to be tightly connected with the ultrasonic end face to prevent the solution from seeping in.

[0046] The cross section of the drum is hexagonal, which can promote the flushing and cleaning of the liquid medium in the barrel when rotating, and can also be circular or other polygons, and by adjusting the rotation speed, size, and angle of the ultrasonic assembly, the same effect can be achieved.

[0047] The bearing used in the application is used to reduce the plastic dust generated by the mutual friction between the parts when rotating, but it is not limited to using bearings, and direct contact rotation or other ways can also achieve the rotation function.

[0048] The connections of the application can be in various forms, such as screw fixing, welding, adhesion, etc., and can also be integrally formed.

[0049] The workpiece cleaning device of the above-mentioned embodiments is mainly used for the pre-cleaning of the workpiece of neodymium iron boron material before electroplating, and by providing a cathode head in the drum 3 for electroplating the workpiece, it can become a complete workpiece electroplating device, and when the drum rotates and swings in the technical solution shown in the above-mentioned embodiments, it can greatly improve the workpiece electroplating quality.

[0050] The above detailed description is only a detailed explanation of the technical solutions of the present application, and the present application is not limited to the above examples. Those skilled in the art should understand that any improvement and replacement based on the above principles and spirits and on the basis of the present application should be within the protection scope of the present application.

Claims

1. A workpiece cleaning apparatus, characterized by: Comprising a support for supporting the whole device; an adjusting plate, one end of which is hinged to the support and the other end is free, the adjusting plate swings left and right or up and down around its hinged shaft under the drive of an adjusting drive unit; the adjusting plate is arranged at an angle to the vertical direction; the preset angle of the adjusting plate to the vertical direction is 0-60 degrees; a roller, which is installed on the adjusting plate, the axis of the roller is perpendicular to the plate surface of the adjusting plate, one end of the roller is an open end and the other end is a closed end; the open end is arranged obliquely upward, and the closed end is rotatably fixed on the adjusting plate; a roller drive unit, which is installed on the support, the roller drive unit drives the roller to rotate through a gear; the bottom of the roller is fixedly connected with an adjustable transmission gear, the teeth of the adjustable transmission gear are engaged with the teeth of a transmission gear fixed on the support; the teeth of the adjustable transmission gear are adapted to always engage with the teeth of the transmission gear when the adjusting plate swings at a predetermined angle.

2. The workpiece cleaning apparatus of claim 1, wherein: A cleaning auxiliary assembly is arranged on the inner side or outer wall of the roller to improve the cleaning degree of the workpiece.

3. The workpiece cleaning apparatus of claim 2, wherein: The cleaning auxiliary assembly is at least one of an ultrasonic cleaning auxiliary assembly, a high-pressure gas cleaning auxiliary assembly, a high-pressure liquid sputtering cleaning auxiliary assembly, a cleaning brush cleaning auxiliary assembly, and an ultrasonic rod cleaning auxiliary assembly.

4. The workpiece cleaning apparatus of claim 3, wherein: The cleaning auxiliary assembly is an ultrasonic cleaning auxiliary assembly, which is installed in the bottom or inner cavity of the roller.

5. The workpiece cleaning apparatus of claim 4, wherein: The ultrasonic cleaning auxiliary assembly includes an ultrasonic generator and a transducer, and the wiring terminal of the ultrasonic cleaning auxiliary assembly is guided to the outside of the roller through a cable.

6. The workpiece cleaning apparatus of claim 1, wherein: The transmission gear is at least one, which is driven by the motor of the roller drive unit.

7. The workpiece cleaning apparatus of claim 4, wherein: The bottom of the roller is provided with a hollow shaft, and the ultrasonic cleaning auxiliary assembly is installed in the hollow shaft close to the bottom of the roller.

8. The workpiece cleaning apparatus of claim 4, wherein: The bottom of the roller is provided with a hollow shaft, and the ultrasonic cleaning auxiliary assembly is installed in the hollow shaft close to the bottom of the roller.

9. The workpiece cleaning apparatus of claim 7 or 8, wherein: The open end or the open end and the bottom end of the roller gradually narrow relative to the middle end.

10. The workpiece cleaning apparatus of any one of claims 1-8, wherein: The cross section of the roller is polygonal or circular or elliptical structure.

11. The workpiece cleaning apparatus of claim 9, wherein: The cross section of the roller is polygonal or circular or elliptical structure.

12. The workpiece cleaning apparatus of any one of claims 1-8, wherein: The cross section of the roller is polygonal or circular or elliptical structure.

13. The workpiece cleaning apparatus of claim 9, wherein: The cross section of the roller is polygonal or circular or elliptical structure.

14. The workpiece cleaning apparatus of claim 10, wherein: The bottom of the roller is provided with an outwardly extending shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the shaft extending out of the shaft hole of the adjusting plate is fixed through a locking device.

15. The workpiece cleaning apparatus of claim 11, wherein: ​ 16. The workpiece cleaning apparatus of any one of claims 1-8, wherein: ​ 17. The workpiece cleaning apparatus of claim 9, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

18. The workpiece cleaning apparatus of claim 10, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

19. The workpiece cleaning apparatus of claim 11, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

20. The workpiece cleaning apparatus of claim 12, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

21. The workpiece cleaning apparatus of claim 13, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

22. The workpiece cleaning apparatus of claim 14, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

23. The workpiece cleaning apparatus of claim 15, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

24. The workpiece cleaning apparatus of any one of claims 1-8, wherein: The bottom of the roller is provided with an outwardly extending rotating shaft, which is installed in the shaft hole of the adjusting plate through a bearing, and the end of the rotating shaft extending out of the shaft hole of the adjusting plate is fixed through locking devices.

25. The workpiece cleaning apparatus of claim 9, wherein: The roller is provided with cathode heads for electroplating workpieces.

26. The workpiece cleaning apparatus of claim 10, wherein: The roller is provided with cathode heads for electroplating workpieces.

27. The workpiece cleaning apparatus of claim 11, wherein: The roller is provided with cathode heads for electroplating workpieces.

28. The workpiece cleaning apparatus of claim 12, wherein: The roller is provided with cathode heads for electroplating workpieces.

29. The workpiece cleaning apparatus of claim 13, wherein: The roller is provided with cathode heads for electroplating workpieces.

30. The workpiece cleaning apparatus of claim 14, wherein: The roller is provided with cathode heads for electroplating workpieces.

31. The workpiece cleaning apparatus of claim 15, wherein: The roller is provided with cathode heads for electroplating workpieces.

32. The workpiece cleaning apparatus of claim 16, wherein: The roller is provided with cathode heads for electroplating workpieces.

33. The workpiece cleaning apparatus of any of claims 17-23, wherein: The roller is provided with cathode heads for electroplating workpieces.

34. The workpiece cleaning apparatus of claim 1, wherein: The roller is provided with cathode heads for electroplating workpieces.

35. The workpiece cleaning apparatus of claim 1, wherein: The adjusting plate swings up and down by an angle less than or equal to 45 degrees. The axis of the hinge shaft is parallel or perpendicular to the horizontal plane, or the hinge shaft is a spherical surface hinge shaft.

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