A grinding device for wiper motor housing

Abstract

The present invention belongs to the technical field of grinding of wiper motor housings, and in particular, is a grinding device for wiper motor housings. In view of the problem that auxiliary grinding of wiper motor housings is difficult and the inner wall of wiper motor housings is difficult to grind as mentioned in the background technology, the following scheme is proposed, including a first mounting frame, a grinding auxiliary mechanism, an inner and outer wall grinding mechanism, and a cleaning mechanism. The present invention enables the wiper motor housing to be rotated in an orderly manner without being damaged, which facilitates the auxiliary grinding of the wiper motor housing. The inner and outer walls of the wiper motor housing are fully ground, ensuring the installation accuracy and stability of the wiper motor during operation. During the grinding stage of the wiper motor housing, the airflow ejected from the air nozzle can cover the height of the wiper motor housing, thereby quickly cleaning up the debris generated during grinding. The overall structure is simple, the installation cost is low, and the occupied area is small, which enables quick cleaning of each wiper motor housing.

Description

Technical Field

[0001] The invention relates to the technical field of windshield wiper motor housing grinding, in particular to a windshield wiper motor housing grinding device. Background Art

[0002] The wiper motor is an electric device used for car wipers. It is mainly composed of a motor, a connecting rod mechanism and a small gear transmission. The specific working principle is as follows: Motor drive: The wiper motor is driven by an electric motor, usually powered by the vehicle's battery. Connecting rod mechanism: The motor drives the connecting rod mechanism, so that the motor's rotational motion is converted into the reciprocating motion of the wiper arm, thereby realizing the wiper action.

[0003] The wiper motor housing is a mechanical component used to wrap the wiper motor and integrate the wiper motor and its associated electronic components. However, since the wiper motor housing adopts a cylindrical structure with a thin wall thickness, it is not suitable for some conventional hard fixtures during the grinding process, and it is difficult to implement the stage of rotating the wiper motor housing to assist in grinding.

[0004] At the same time, the inner wall grinding of the wiper motor housing is easily overlooked in the daily grinding process. Once the inner wall of the wiper motor housing is uneven, it will directly affect the installation accuracy of the wiper motor and affect its stability during operation. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a grinding device for a wiper motor housing, which overcomes the deficiencies of the prior art and effectively solves the problems of difficulty in grinding the auxiliary wiper motor housing and difficulty in grinding the inner wall of the wiper motor housing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A grinding device for a wiper motor housing, comprising a first mounting frame, a grinding auxiliary mechanism, an inner and outer wall grinding mechanism and a cleaning mechanism, wherein the grinding auxiliary mechanism comprises a U-shaped plate welded to the inner wall of one side of the first mounting frame, two adjacent gears rotatably connected to the inner wall of the U-shaped plate, a first servo motor fixedly connected to one of the gear shafts, a first inclined plate and a second inclined plate respectively welded to the two gear shafts, a traction roller rotatably connected to one end of the outer wall at the top of the first inclined plate, a second servo motor fixedly connected to the outer wall at the top of the first inclined plate, a pulley group installed between the traction roller and the second servo motor, and a positioning wheel rotatably connected to the outer wall at the top of the second inclined plate;

[0008] The inner and outer wall grinding mechanism includes a top plate seat mounted on the top outer wall of the first mounting frame, a first cylinder fixedly connected to the top outer wall of the top plate seat, a slide fixedly connected to the piston rod of the first cylinder, a second cylinder fixedly connected to the top outer wall of the slide, a first angle plate fixedly connected to the piston rod of the second cylinder, a screw rod screwed on the inner wall of the first angle plate, a second angle plate rotatably connected to the outer wall of one end of the screw rod, an inner grinding roller mounted on the bottom outer wall of the first angle plate, and an outer grinding roller mounted on the bottom outer wall of the second angle plate;

[0009] The cleaning mechanism includes an inner connecting plate welded to the inner grinding roller connecting column, an outer connecting plate welded to the outer grinding roller connecting column, a cleaning pipe arranged on one side of the inner grinding roller and the outer grinding roller, an air nozzle installed on the outer wall of one side of the two cleaning pipes, and an air pipe fixedly connected to the outer wall of one end of the cleaning pipe.

[0010] Preferably, an electric rotating seat is welded to the bottom of the outer wall of one side of the first mounting frame, and the output shaft of the driving motor inside the electric rotating seat is connected to the rotating platform.

[0011] Preferably, the top inner wall of the rotating table is rotatably connected with equally spaced workstation rotating columns, and the workstation rotating columns are arranged between the traction roller and the positioning wheel, and the top outer wall of the workstation rotating columns is welded with a shell placement platform.

[0012] Preferably, the inner wall of the workstation rotating column is connected to springs distributed at equal distances, and the outer wall of one end of the spring is connected to a clamping plate, which is slidably connected to the inner wall of the shell placement table, and the wiper motor shell is placed on the inner wall of the clamping plate at the top of the shell placement table.

[0013] Preferably, a photoelectric sensor is fixedly connected to an outer wall of one side of the first mounting frame.

[0014] Preferably, a second mounting bracket is welded to the outer wall of one side of the electric rotating seat, and a third cylinder is fixedly connected to the outer wall at the top of the second mounting bracket, the piston rod of the third cylinder is connected to the fourth cylinder, the piston rod of the fourth cylinder is connected to the vacuum suction nozzle, the top of the pipe of the vacuum suction nozzle is connected to a connecting pipe, and the vacuum suction nozzle is connected to a vacuum pump through the connecting pipe.

[0015] Preferably, a slide is welded to the outer wall of the second mounting frame at one side of the rotating table, and a buffer pad is bonded to the inner wall of the slide.

[0016] Preferably, a collecting frame with universal wheels is provided at the bottom of the outer wall at one end of the slide.

[0017] Preferably, a PLC controller is fixedly connected to the outer wall on the other side of the first mounting frame, and the PLC controller is connected to the first servo motor, the second servo motor, the first cylinder, the second cylinder, the electric rotating seat, the photoelectric sensor, the third cylinder and the fourth cylinder through signal lines.

[0018] Preferably, an outer wall on one side of the top plate seat is fixedly connected to a track, and the slide plate is slidably connected to the outer wall of the track.

[0019] The beneficial effects of the present invention are:

[0020] 1. The wiper motor housing grinding device of the present invention can simultaneously control one end of two inclined plates to approach each other by driving two gears to rotate through the first servo motor, clamp the station rotating column between the traction roller and the positioning wheel, and as the second servo motor drives the traction roller to rotate, the wiper motor housing on the station rotating column will rotate with the traction roller. Since the wiper motor housing is placed between four clamping plates, the strength of the force-bearing part is high and the force is uniform, so that the wiper motor housing can be rotated in an orderly manner without being damaged, which is convenient for auxiliary wiper motor housing grinding;

[0021] 2. The grinding device for the wiper motor housing of the present invention can repeatedly contact the wiper motor housing with the inner grinding roller and the outer grinding roller when the piston rod is repeatedly extended and retracted by the second cylinder, and the automatic grinding of the wiper motor housing is realized during the rotation of the station rotating column. On this basis, the distance between the inner grinding roller and the outer grinding roller can be adjusted by rotating the screw rod, and it is suitable for wiper motor housings of different thicknesses, and has the characteristic of convenient adjustment. The inner and outer walls of the wiper motor housing are fully ground, ensuring the installation accuracy of the wiper motor and the stability during operation;

[0022] 3. In the grinding device for the wiper motor housing of the present invention, during the grinding stage of the wiper motor housing, the cleaning tube and the air nozzle will rise and fall with the rising and falling of the inner grinding roller and the outer grinding roller. The airflow ejected by the air nozzle can cover the height of the wiper motor housing, thereby quickly cleaning away the debris generated during grinding. The overall structure is simple, the installation cost is low, the occupied area is small, and the rapid cleaning of each wiper motor housing is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a grinding device for a wiper motor housing proposed by the present invention;

[0024] Figure 2 This is a rear view of the overall structure of a grinding device for a wiper motor housing proposed by the present invention;

[0025] Figure 3 Schematic diagram of a grinding auxiliary mechanism for a wiper motor housing grinding device proposed by the present invention Figure 1 ;

[0026] Figure 4 Schematic diagram of a grinding auxiliary mechanism for a wiper motor housing grinding device proposed by the present invention Figure 2 ;

[0027] Figure 5 A schematic diagram of the inner and outer wall grinding mechanism of a windshield wiper motor housing grinding device proposed by the present invention;

[0028] Figure 6 A schematic diagram of a cleaning mechanism of a grinding device for a wiper motor housing proposed by the present invention;

[0029] Figure 7 A schematic diagram of the structure of a wiper motor housing of a wiper motor housing grinding device proposed by the present invention.

[0030] In the figure: 1, first mounting frame; 2, grinding auxiliary mechanism; 21, U-shaped plate; 22, gear; 23, first servo motor; 24, first inclined plate; 25, traction roller; 26, second servo motor; 27, pulley group; 28, second inclined plate; 29, positioning wheel;

[0031] 3. Inner and outer wall grinding mechanism; 31. Top plate seat; 32. First cylinder; 33. Slide plate; 34. Second cylinder; 35. First angle plate; 36. Screw rod; 37. Second angle plate; 38. Inner grinding roller; 39. Outer grinding roller;

[0032] 4. Cleaning mechanism; 41. Inner connecting plate; 42. Cleaning pipe; 43. Outer connecting plate; 44. Air nozzle; 45. Air pipe;

[0033] 5. Electric rotating seat; 6. Rotating table; 7. Workstation rotating column; 8. Shell placement table; 9. Spring; 10. Clamp; 11. Photoelectric sensor; 12. Second mounting bracket; 13. Third cylinder; 14. Fourth cylinder; 15. Vacuum nozzle; 16. Slide; 17. Buffer pad; 18. Collection frame; 19. PLC controller. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Embodiment 1, refer to Figures 3 to 4 A grinding device for a wiper motor housing includes a first mounting frame 1, and a grinding auxiliary mechanism 2 is provided on the inner wall of one side of the first mounting frame 1. The grinding auxiliary mechanism 2 includes the following components:

[0036] The grinding auxiliary mechanism 2 includes a U-shaped plate 21, a gear 22, a first servo motor 23, a first inclined plate 24, a traction roller 25, a second servo motor 26, a pulley group 27, a second inclined plate 28, and a positioning wheel 29. The U-shaped plate 21 is welded to an inner wall of one side of the first mounting frame 1, and two adjacent gears 22 are rotatably connected to the inner wall of the U-shaped plate 21. The output shaft of the first servo motor 23 is fixedly connected to the rotating shaft of one of the gears 22, and the first inclined plate 24 is installed on the rotating shaft of the other gear 22. The traction roller 25 is rotatably connected to the top of the outer wall of one end of the first inclined plate 24, and the second servo motor 26 is fixedly connected to the top outer wall of the first inclined plate 24. The pulley group 27 is installed between the traction roller 25 and the second servo motor 26, and the second inclined plate 28 is installed on the rotating shaft of one of the gears 22. The positioning wheel 29 is rotatably connected to the top outer wall of the second inclined plate 28.

[0037] In this embodiment, by driving the two gears 22 to rotate through the first servo motor 23, one end of the two inclined plates can be controlled to approach each other at the same time, and the work station rotating column 7 is clamped between the traction roller 25 and the positioning wheel 29. As the second servo motor 26 drives the traction roller 25 to rotate, the wiper motor housing on the work station rotating column 7 will rotate with the traction roller 25. Since the wiper motor housing is placed between the four clamping plates 10, the strength of the force-bearing parts is high and the force is uniform, so that the wiper motor housing can be rotated in an orderly manner without being damaged, which is convenient for auxiliary wiper motor housing grinding.

[0038] Example 2, refer to Figure 5 A grinding device for a wiper motor housing, an inner and outer wall grinding mechanism 3 is provided at one end of the top outer wall of a first mounting frame 1, and the inner and outer wall grinding mechanism 3 includes the following components:

[0039] The inner and outer wall grinding mechanism 3 includes a top plate seat 31, a first cylinder 32, a slide plate 33, a second cylinder 34, a first angle plate 35, a screw rod 36, a second angle plate 37, an inner grinding roller 38, and an outer grinding roller 39. The top plate seat 31 is installed on the top outer wall of the first mounting frame 1, and the first cylinder 32 is fixedly connected to the top outer wall of the top plate seat 31, the slide plate 33 is connected to the piston rod of the first cylinder 32, and the second cylinder 34 is fixedly connected to the top outer wall of the slide plate 33, the first angle plate 35 is connected to the piston rod of the second cylinder 34, and the screw rod 36 is screwed on the inner wall of the first angle plate 35, the second angle plate 37 is rotatably connected to the outer wall of one end of the screw rod 36, and the inner grinding roller 38 is installed on the bottom outer wall of the first angle plate 35, and the outer grinding roller 39 is installed on the bottom outer wall of the second angle plate 37.

[0040] In this embodiment, when the piston rod is repeatedly extended and retracted by the second cylinder 34, the inner grinding roller 38 and the outer grinding roller 39 can repeatedly contact the wiper motor housing, and the automatic grinding of the wiper motor housing is realized during the rotation of the work station rotating column 7. On this basis, the distance between the inner grinding roller 38 and the outer grinding roller 39 can be adjusted by rotating the screw rod 36. Since the screw rod 36 is screwed on the inner wall of the first angle plate 35, when the screw rod 36 is rotated, it can drive the second angle plate 37 to move, thereby adjusting the distance between the inner grinding roller 38 and the outer grinding roller 39, so as to adapt to wiper motor housings of different thicknesses. It has the characteristic of convenient adjustment, and the inner and outer walls of the wiper motor housing are fully ground, which ensures the installation accuracy of the wiper motor and the stability during operation.

[0041] Example 3, refer to Figure 6 A grinding device for a wiper motor housing, wherein the outer walls of an inner grinding roller 38 and an outer grinding roller 39 are provided with a cleaning mechanism 4, and the cleaning mechanism 4 includes the following components:

[0042] The cleaning mechanism 4 includes an inner connecting plate 41, a cleaning tube 42, an outer connecting plate 43, an air nozzle 44, and an air pipe 45. The inner connecting plate 41 is welded to the connecting column of the inner grinding roller 38, and the outer connecting plate 43 is welded to the connecting column of the outer grinding roller 39. The cleaning tube 42 is installed on the inner walls of the inner grinding roller 38 and the outer grinding roller 39, and the air nozzles 44 distributed at equal distances are all installed on the outer wall of one side of the cleaning tube 42. The air pipe 45 is connected to the outer wall of one end of the cleaning tube 42.

[0043] In this embodiment, during the grinding stage of the wiper motor housing, the cleaning tube 42 and the air nozzle 44 will rise and fall with the rising and falling of the inner grinding roller 38 and the outer grinding roller 39. The airflow ejected by the air nozzle 44 can cover the height of the wiper motor housing, thereby quickly cleaning up the debris generated during grinding. The overall structure is simple, the installation cost is low, and the occupied area is small, thereby realizing rapid cleaning of each wiper motor housing.

[0044] Reference Figure 2 An electric rotating seat 5 is welded to the bottom of the outer wall on one side of the first mounting frame 1, and the output shaft of the driving motor inside the electric rotating seat 5 is connected to the rotating table 6. The driving motor inside the electric rotating seat 5 drives the rotating table 6 to rotate, so as to control each wiper motor housing to be transferred to the designated grinding position.

[0045] Reference Figures 2 to 4The inner wall at the top of the rotating table 6 is rotatably connected to the work station rotating columns 7 which are evenly distributed, and the work station rotating columns 7 are arranged between the traction roller 25 and the positioning wheel 29. The outer wall at the top of the work station rotating column 7 is welded with a shell placement platform 8. When the work station rotating column 7 is clamped between the traction roller 25 and the positioning wheel 29, the rotation of the traction roller 25 can drive the shell placement platform 8 on the top of the work station rotating column 7 to rotate together, thereby realizing the self-rotation of the wiper motor shell.

[0046] Reference Figures 2 to 4 The inner wall of the workstation rotating column 7 is connected to springs 9 distributed at equal distances, and the outer wall of one end of the spring 9 is connected to a clamping plate 10, which is slidably connected to the inner wall of the shell placement platform 8. The top of the shell placement platform 8 is located on the inner wall of the clamping plate 10 and a wiper motor shell is placed. The wiper motor shell is placed before grinding with the opening of the wiper motor shell facing upward. The raised part of the bottom of the wiper motor shell is placed on the shell placement platform 8 along the groove position on the top of the shell placement platform 8. During this process, the spring 9 will control the clamping plate 10 to shrink inward, thereby clamping the side bottom of the wiper motor shell.

[0047] Reference Figure 1 A photoelectric sensor 11 is fixedly connected to the outer wall of one side of the first mounting frame 1. The photoelectric sensor 11 is mainly used to monitor the position of the wiper motor housing. Because four wiper motor housings can be set on the rotating table 6, each wiper motor housing will be intermittently transferred to the side close to the photoelectric sensor 11. Once the photoelectric sensor 11 detects that the wiper motor housing is in place, the signal is transmitted to the PLC controller 19 to control the corresponding grinding auxiliary mechanism 2, the inner and outer wall grinding mechanism 3 and the electrical equipment in the cleaning mechanism 4 and the fourth cylinder 14 to work, while grinding the wiper motor housing close to the photoelectric sensor 11, while transferring the wiper motor housing away from the photoelectric sensor 11.

[0048] Reference Figures 1 to 2A second mounting bracket 12 is welded to the outer wall of one side of the electric rotating seat 5, and a third cylinder 13 is fixedly connected to the outer wall of the top of the second mounting bracket 12. The piston rod of the third cylinder 13 is connected to the fourth cylinder 14. The piston rod of the fourth cylinder 14 is connected to the vacuum suction nozzle 15. The top of the pipeline of the vacuum suction nozzle 15 is connected to a connecting pipe. The vacuum suction nozzle 15 is connected to a vacuum pump through the connecting pipe. After the grinding is completed, the wiper motor housing will move to the bottom of the vacuum suction nozzle 15, and the vacuum suction nozzle 15 will be pushed downward by the fourth cylinder 14, and the vacuum suction nozzle 15 will contact When it reaches the bottom of the wiper motor housing, a vacuum pump is used to extract the gas between the vacuum nozzle 15 and the surface of the wiper motor housing to form a negative pressure, so that the vacuum nozzle 15 is firmly adsorbed on the surface of the wiper motor housing. Then the fourth cylinder 14 contracts the piston rod, and the vacuum nozzle 15 drives the wiper motor housing to move upward. Then the third cylinder 13 drives the wiper motor housing to move horizontally to the top of the slide 16. Then, when the vacuum nozzle 15 is inflated, the vacuum nozzle 15 is separated from the wiper motor housing, completing the transfer of the wiper motor housing.

[0049] Reference Figures 1 to 2 A slide 16 is welded to the outer wall of the second mounting frame 12 on one side of the rotating table 6, and a buffer pad 17 is bonded to the inner wall of the slide 16. The buffer pad 17 is used to provide a buffering effect to prevent the surface of the wiper motor housing from being worn when it falls. When the wiper motor housing falls, it will first fall on the buffer pad 17 and then slide along the slide 16.

[0050] Reference Figure 1 A collecting frame 18 with universal wheels is provided at the bottom of the outer wall at one end of the slide 16. The wiper motor housing after grinding will eventually be collected in the collecting frame 18. The bottom of the collecting frame 18 is provided with universal wheels to facilitate the movement of the collecting frame 18.

[0051] Reference Figures 1 to 5 A PLC controller 19 is fixedly connected to the outer wall on the other side of the first mounting frame 1, and the PLC controller 19 is connected to the first servo motor 23, the second servo motor 26, the first cylinder 32, the second cylinder 34, the electric rotating seat 5, the photoelectric sensor 11, the third cylinder 13 and the fourth cylinder 14 through signal lines. The PLC controller 19 can remotely control the above-mentioned electrical equipment through programming, and control the start and stop of the electrical equipment and the working time.

[0052] Reference Figure 5 The outer wall of one side of the top plate seat 31 is fixedly connected to a track, and the slide plate 33 is slidably connected to the outer wall of the track, ensuring the stability of the slide plate 33 when the first cylinder 32 drives the slide plate 33 to move, and can provide a limiting effect on the extension and retraction of the piston rod of the first cylinder 32.

[0053] Working principle: the wiper motor housing to be ground can be placed on the housing placement table 8. By utilizing the elasticity of the spring 9, the folded position of the bottom outer wall of the wiper motor housing will be evenly clamped by the four clamping plates 10. The electric rotating seat 5 will drive the rotating table 6 to rotate. The photoelectric sensor 11 is connected to the PLC controller 19 by signal. The PLC controller 19 has a high automation function. When the photoelectric sensor 11 detects the wiper motor housing, the signal is transmitted to the PLC controller 19. The first servo motor 23 will drive the two gears 22 to rotate, thereby controlling one end of the two inclined plates to approach each other, clamping the station rotating column 7 between the traction roller 25 and the positioning wheel 29. As the second servo motor 26 drives the traction roller 25 to rotate, the wiper motor housing on the station rotating column 7 will rotate with the traction roller 25.

[0054] In actual operation, the operation time of the first servo motor 23 and the second servo motor 26 can be controlled by the PLC controller 19 according to the time required for grinding each wiper motor housing, and the appropriate opening time and closing time can be adjusted. After that, the first cylinder 32 pushes the slide plate 33 downward to control the inner grinding roller 38 and the outer grinding roller 39 to move to the top of the wiper motor housing;

[0055] Afterwards, the first angle plate 35 is pushed downward by the second cylinder 34, so that the inner grinding roller 38 and the outer grinding roller 39 can repeatedly contact the wiper motor housing. Since the inner grinding roller 38 and the outer grinding roller 39 are mainly lifted and lowered by the first angle plate 35, the inner grinding roller 38 and the outer grinding roller 39 can be lifted and lowered synchronously.

[0056] When the wiper motor housing is placed on the housing placement platform 8, the inner grinding roller 38 and the outer grinding roller 39 are both arranged on the top of the wiper motor housing. The first cylinder 32 is mainly used to preliminarily adjust the height of the slide plate 33. When the inner grinding roller 38 and the outer grinding roller 39 are close to the wiper motor housing, and then the first angle plate 35 is pushed downward by the second cylinder 34, the inner grinding roller 38 and the outer grinding roller 39 will contact the wiper motor housing. When the second cylinder 34 repeatedly extends and retracts the piston rod, repeated grinding can be achieved.

[0057] During the rotation of the station rotating column 7, different positions of the inner and outer walls of the wiper motor housing can be ground by the inner grinding roller 38 and the outer grinding roller 39, thereby realizing the automatic grinding of the inner and outer walls of the wiper motor housing. During the grinding process, the cleaning tube 42 and the air nozzle 44 will rise and fall with the rise and fall of the inner grinding roller 38 and the outer grinding roller 39, and the air flow ejected by the air nozzle 44 can cover the height of the wiper motor housing, thereby quickly cleaning up the debris generated during the grinding.

[0058] When the wiper motor housing moves to the bottom of the fourth cylinder 14, the vacuum nozzle 15 is pushed downward by the fourth cylinder 14, and the wiper motor housing is adsorbed by the vacuum nozzle 15. As the fourth cylinder 14 is reset and the piston rod of the third cylinder 13 contracts, when the wiper motor housing moves to the top of the slide 16, the wiper motor housing can fall onto the buffer pad 17 and be finally stored in the collection frame 18 along the slide 16.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding device for a wiper motor housing, comprising a first mounting frame (1), a grinding auxiliary mechanism (2), an inner and outer wall grinding mechanism (3) and a cleaning mechanism (4), characterized in that: The grinding auxiliary mechanism (2) comprises a U-shaped plate (21) welded to the inner wall of one side of the first mounting frame (1), two adjacent gears (22) rotatably connected to the inner wall of the U-shaped plate (21), a first servo motor (23) fixedly connected to the rotating shaft of one of the gears (22), a first inclined plate (24) and a second inclined plate (28) respectively welded to the rotating shafts of the two gears (22), a traction roller (25) rotatably connected to one end of the top outer wall of the first inclined plate (24), a second servo motor (26) fixedly connected to the top outer wall of the first inclined plate (24), a pulley group (27) installed between the traction roller (25) and the second servo motor (26), and a positioning wheel (29) rotatably connected to the top outer wall of the second inclined plate (28); The inner and outer wall grinding mechanism (3) comprises a top plate seat (31) mounted on the top outer wall of the first mounting frame (1), a first cylinder (32) fixedly connected to the top outer wall of the top plate seat (31), a slide plate (33) fixedly connected to the piston rod of the first cylinder (32), a second cylinder (34) fixedly connected to the top outer wall of the slide plate (33), a first angle plate (35) fixedly connected to the piston rod of the second cylinder (34), a screw rod (36) screwed to the inner wall of the first angle plate (35), a second angle plate (37) rotatably connected to the outer wall of one end of the screw rod (36), an inner grinding roller (38) mounted on the bottom outer wall of the first angle plate (35), and an outer grinding roller (39) mounted on the bottom outer wall of the second angle plate (37); The cleaning mechanism (4) comprises an inner connecting plate (41) welded to a connecting column of an inner grinding roller (38), an outer connecting plate (43) welded to a connecting column of an outer grinding roller (39), a cleaning pipe (42) arranged on one side of the inner grinding roller (38) and the outer grinding roller (39), an air nozzle (44) installed on the outer wall of one side of the two cleaning pipes (42), and an air pipe (45) fixedly connected to the outer wall of one end of the cleaning pipe (42); An electric rotating seat (5) is welded to the bottom of the outer wall of one side of the first mounting frame (1), and the output shaft of the driving motor inside the electric rotating seat (5) is connected to a rotating table (6), and the inner wall at the top of the rotating table (6) is rotatably connected to workstation rotating columns (7) distributed at equal distances, and the workstation rotating columns (7) are arranged between the traction roller (25) and the positioning wheel (29), and an outer shell placement platform (8) is welded to the outer wall at the top of the workstation rotating column (7), and the inner wall of the workstation rotating column (7) is connected to springs (9) distributed at equal distances, and the outer wall of one end of the spring (9) is connected to a clamping plate (10), and the clamping plate (10) is slidably connected to the inner wall of the outer shell placement platform (8), and a wiper motor shell is placed on the inner wall of the top of the outer shell placement platform (8) located at the clamping plate (10), and a photoelectric sensor (11) is fixedly connected to the outer wall of one side of the first mounting frame (1); A second mounting frame (12) is welded to the outer wall of one side of the electric rotating seat (5), and a third cylinder (13) is fixedly connected to the outer wall of the top of the second mounting frame (12), the piston rod of the third cylinder (13) is connected to the fourth cylinder (14), the piston rod of the fourth cylinder (14) is connected to the vacuum suction nozzle (15), the top of the pipeline of the vacuum suction nozzle (15) is connected to a connecting pipe, and the vacuum suction nozzle (15) is connected to a vacuum pump through the connecting pipe, a slide (16) is welded to the outer wall of the second mounting frame (12) on one side of the rotating table (6), and a buffer pad (17) is bonded to the inner wall of the slide (16), and a collection frame (18) with universal wheels is arranged at the bottom of the outer wall of one end of the slide (16); A PLC controller (19) is fixedly connected to the outer wall of the other side of the first mounting frame (1), and the PLC controller (19) is connected to the first servo motor (23), the second servo motor (26), the first cylinder (32), the second cylinder (34), the electric rotating seat (5), the photoelectric sensor (11), the third cylinder (13) and the fourth cylinder (14) through signal lines. A track is fixedly connected to the outer wall of one side of the top plate seat (31), and the slide plate (33) is slidably connected to the outer wall of the track.

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