A laser cleaning apparatus

Abstract

The utility model discloses a kind of laser cleaning equipment, it is related to laser technology field, including rack, shield and linear drive part;Positioning fixture, laser device and material taking device are equipped on rack;Shield is movably connected on positioning fixture, and shield is equipped with avoiding hole, and avoiding hole is used for the copper bar of capacitor on positioning fixture to pass through;Linear drive part is located on positioning fixture, and the output end of linear drive part is connected with shield, and linear drive part can drive shield to be close to positioning fixture, to make the copper bar of capacitor on positioning fixture pass through avoiding hole, and make the surface of shield shielding capacitor close to copper bar one side side surface.The shield can shield the surface of capacitor close to copper bar one side side surface, effectively prevent the metal scrap, oxidized dust etc. Pollutants generated when laser cleaning copper bar surface adhere on the surface of capacitor close to copper bar one side side surface, thereby avoid the pollution effect insulation performance and electrical performance of capacitor, ensure the quality of capacitor.

Description

Technical Field

[0001] This utility model relates to the field of laser technology, and in particular to a laser cleaning device. Background Technology

[0002] Laser cleaning equipment utilizes a laser beam to act on the surface of an object to be cleaned. This causes contaminants, oxide layers, and other impurities on the surface to absorb the light energy instantly, vaporizing and peeling off, thus achieving efficient cleaning. Laser cleaning equipment is commonly used to clean the copper busbar surfaces of capacitors. In existing technology, laser cleaning equipment typically includes a material handling device, a positioning fixture, and a laser device. The material handling device transports the capacitor to be cleaned onto the positioning fixture, which positions the capacitor. The laser device performs laser cleaning on the copper busbar surface of the capacitor on the positioning fixture. The material handling device then removes the cleaned capacitor from the positioning fixture and transfers it to a subsequent storage or processing area. During the laser cleaning process on the copper busbar surface of the capacitor, contaminants such as metal debris and oxide dust easily adhere to the surface of the capacitor near the copper busbar, leading to capacitor contamination. These contaminants not only affect the capacitor's insulation and electrical performance but also shorten its lifespan, thus reducing the capacitor's overall quality. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a laser cleaning device that can ensure the quality of capacitors.

[0004] The laser cleaning equipment according to an embodiment of the present invention includes a frame on which a positioning fixture, a laser device, and a material handling device are mounted; a protective plate movably connected to the positioning fixture, the protective plate having a clearance hole for the copper busbar of a capacitor on the positioning fixture to pass through; and a linear drive unit disposed on the positioning fixture, the output end of the linear drive unit being connected to the protective plate, the linear drive unit being able to drive the protective plate closer to the positioning fixture, so that the copper busbar of the capacitor on the positioning fixture passes through the clearance hole, and the protective plate blocking the surface of the capacitor on the positioning fixture near the copper busbar.

[0005] It has at least the following beneficial effects: The material handling device transports the capacitors to be cleaned onto a positioning fixture on the frame, allowing the fixture to position the capacitors. Then, a linear drive on the positioning fixture activates, causing a protective plate to move closer to the fixture. As the protective plate approaches the fixture, the copper busbars of the capacitors on the fixture pass through clearance holes in the protective plate until the plate completely blocks the surface of the capacitors near the busbars. A laser device then performs laser cleaning on the surface of the copper busbars. After laser cleaning, the linear drive moves the protective plate away from the fixture and the capacitors on it. Finally, the material handling device removes the laser-cleaned capacitors from the fixture and transfers them to a subsequent area. During the laser cleaning process, the protective plate effectively blocks the surface of the capacitors near the copper busbars, preventing metal debris, oxide dust, and other contaminants generated during laser cleaning from adhering to this side of the capacitors. This avoids contaminants affecting the capacitors' insulation and electrical performance, extending their lifespan and ensuring their quality.

[0006] The laser cleaning equipment according to an embodiment of the present invention further includes two clamping devices, both of which are disposed on the positioning fixture and located at both ends of the positioning fixture, and both of which are used to clamp the capacitor onto the positioning fixture.

[0007] According to an embodiment of the laser cleaning equipment of the present invention, the pressing device includes an auxiliary arm, a pressing arm, and a first cylinder. The cylinder body of the first cylinder is disposed on the positioning fixture. One end of the auxiliary arm is hinged to the middle of the pressing arm, and the other end of the auxiliary arm is hinged to the positioning fixture. One end of the pressing arm is hinged to the piston rod of the first cylinder. The piston rod of the first cylinder can extend to allow the other end of the pressing arm to swing downward and press the capacitor onto the positioning fixture.

[0008] According to the laser cleaning equipment of this utility model embodiment, a flexible block is provided on the other end of the pressure arm, and the other end of the pressure arm presses the capacitor onto the positioning fixture through the flexible block.

[0009] The laser cleaning equipment according to an embodiment of the present invention further includes a rotary drive component. The positioning fixture is rotatably connected to the frame. The rotary drive component is disposed on the frame. The output end of the rotary drive component is connected to the positioning fixture. The rotary drive component is used to drive the positioning fixture to rotate 180°.

[0010] The laser cleaning equipment according to an embodiment of the present invention further includes a third cylinder, the cylinder body of which is disposed on the frame, and a limiting hole is provided on the side wall of the positioning fixture. After the positioning fixture is rotated 180°, the piston rod of the third cylinder can be inserted into the limiting hole.

[0011] The laser cleaning equipment according to an embodiment of the present invention further includes a sliding base and a linear drive mechanism. The sliding base is slidably connected to the frame, the positioning fixture is rotatably connected to the sliding base, the rotary drive member is disposed on the sliding base, and the linear drive mechanism is disposed on the frame. The output end of the linear drive mechanism is connected to the sliding base, and the linear drive mechanism is used to drive the sliding base to move.

[0012] The laser cleaning equipment according to an embodiment of the present invention further includes a transfer positioning platform, which is used to position the capacitor, and the material handling device is used to first transport the capacitor to the transfer positioning platform and then to the positioning fixture.

[0013] According to the laser cleaning equipment of this utility model embodiment, an annular groove is provided on the inner wall of the clearance hole, and a sealing ring is engaged in the annular groove. The sealing ring is used for the copper busbar of the capacitor to pass through, so that the inner wall of the sealing ring can keep abutting against the copper busbar of the capacitor.

[0014] According to the laser cleaning equipment of this utility model embodiment, the protective plate is provided with a disassembly port, and the disassembly port is connected to the annular slot.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the laser cleaning equipment according to an embodiment of the present invention; Figure 2 This is a structural diagram of the positioning fixture, protective plate, and capacitor; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a structural schematic diagram of the positioning fixture, protective plate, and capacitor from another perspective; Figure 5 yes Figure 4 A magnified view of a section at point B in the middle; Figure 6 This is a schematic diagram of the structure of a protective plate according to another embodiment; Icon labels: Frame 100; Material handling device 110; Laser device 120; Material storage device 130; Positioning fixture 200; Rotary drive component 210; Protective plate 300; clearance hole 310; annular groove 320; sealing ring 330; disassembly port 340; Clamping device 400; auxiliary arm 410; pressure arm 420; first cylinder 430; flexible block 440; Linear drive mechanism 500; sliding base 510; Capacitor 10; Copper busbar 11. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 This utility model discloses a laser cleaning device, including a frame 100, a protective plate 300, and a linear drive. The frame 100 is provided with a positioning fixture 200, a laser device 120, and a material handling device 110. The protective plate 300 is movably connected to the positioning fixture 200 and has a clearance hole 310 for the copper busbar 11 of the capacitor 10 on the positioning fixture 200 to pass through. The linear drive is provided on the positioning fixture 200, and the output end of the linear drive is connected to the protective plate 300. The linear drive can drive the protective plate 300 closer to the positioning fixture 200 so that the copper busbar 11 of the capacitor 10 on the positioning fixture 200 passes through the clearance hole 310 and the protective plate 300 blocks the surface of the capacitor 10 on the positioning fixture 200 near the copper busbar 11.

[0021] Understandably, the picking device 110 transports the capacitor 10 to be cleaned onto the positioning fixture 200 on the frame 100, allowing the positioning fixture 200 to position the capacitor 10. Subsequently, the linear drive on the positioning fixture 200 is activated, driving the protective plate 300 towards the positioning fixture 200. As the protective plate 300 approaches the positioning fixture 200, the copper busbar 11 of the capacitor 10 on the positioning fixture 200 passes through the clearance hole 310 on the protective plate 300 until the protective plate 300 completely blocks the surface of the capacitor 10 near the copper busbar 11. Then, the laser device 120 performs laser cleaning on the surface of the copper busbar 11 of the capacitor 10. After laser cleaning, the linear drive moves the protective plate 300 away from the positioning fixture 200 and the capacitor 10 on the positioning fixture 200. Finally, the picking device 110 removes the laser-cleaned capacitor 10 from the positioning fixture 200 and transfers it to a subsequent area. During the laser cleaning process, the protective plate 300 can shield the surface of the capacitor 10 near the copper busbar 11, effectively preventing metal debris, oxide dust and other contaminants generated during laser cleaning of the copper busbar 11 from adhering to the surface of the capacitor 10 near the copper busbar 11. This avoids contaminants affecting the insulation and electrical performance of the capacitor 10, which not only helps to extend the service life of the capacitor 10, but also ensures the quality of the capacitor 10.

[0022] In this embodiment of the invention, the protective plate 300 can be movably connected to the positioning fixture 200 via a common slide rail slider connection, allowing the protective plate 300 to move linearly relative to the positioning fixture 200. As an embodiment of the invention, the linear drive is a second cylinder. The cylinder body of the second cylinder is connected to the positioning fixture 200, and the piston rod of the second cylinder is connected to the protective plate 300. The second cylinder is used to drive the protective plate 300 closer to or further away from the positioning fixture 200. It should be noted that the protective plate 300 is provided with multiple clearance holes 310, which allow the copper busbars 11 on the capacitor 10 to pass through simultaneously.

[0023] As another embodiment of this utility model, refer to Figure 6An annular groove 320 is provided on the inner wall of the clearance hole 310. A sealing ring 330 is engaged in the annular groove 320. The sealing ring 330 is used for the copper busbar 11 of the capacitor 10 to pass through, so that the inner wall of the sealing ring 330 can keep against the copper busbar 11 of the capacitor 10. Understandably, when the linear drive unit drives the protective plate 300 close to the positioning fixture 200, and the copper busbar 11 of the capacitor 10 passes through the clearance hole 310, the sealing ring 330 in the annular groove 320 will tightly fit the outer wall of the copper busbar 11 of the capacitor 10 due to the insertion of the copper busbar 11. This allows the sealing ring 330 to seal the gap between the inner wall of the clearance hole 310 and the surface of the copper busbar 11, preventing contaminants generated by laser cleaning of the copper busbar 11 from passing through the gap between the clearance hole 310 and the copper busbar 11 and adhering to the surface of the capacitor 10 near the copper busbar 11. This further eliminates the possibility of contaminants adhering to the surface of the capacitor 10 near the copper busbar 11, preventing contaminants from damaging the insulation and electrical performance of the capacitor 10, ensuring the operational stability of the capacitor 10, and thus helping to improve the product quality of the capacitor 10.

[0024] It should be explained that the sealing ring 330 is in constant contact with the copper busbar 11. During the process of the copper busbar 11 entering and exiting the clearance hole 310, the inner wall of the sealing ring 330 will wear due to friction, leading to a decrease in the fit between the sealing ring 330 and the outer wall of the copper busbar 11. On the other hand, the high temperature and metal debris impact generated during laser cleaning will accelerate the aging and hardening of the sealing ring 330, reducing its elasticity and decreasing its sealing effect. This allows contaminants to easily pass through the gap between the clearance hole 310 and the copper busbar 11 and adhere to the surface of the capacitor 10 near the copper busbar 11. Therefore, to ensure the sealing effect of the sealing ring 330, it needs to be replaced periodically. Figure 6 The protective plate 300 is provided with a disassembly port 340, which communicates with the annular groove 320. It is understood that when it is necessary to remove the sealing ring 330 from the annular groove 320, a worker uses a tool (such as a wire) to insert into the annular groove 320 through the disassembly port 340, so that the tool contacts the edge of the sealing ring 330. Then, the worker uses the tool to press the sealing ring 330 towards the center of the clearance hole 310, causing the sealing ring 330 to disengage from the annular groove 320, allowing the worker to remove the sealing ring 330 from the clearance hole 310. When a new sealing ring 330 needs to be installed, the worker first inserts the sealing ring 330 into the clearance hole 310, and then inserts the sealing ring 330 into the annular groove 320. In this embodiment of the invention, the sealing ring 330 is square to fit the shape of the clearance hole 310.

[0025] refer to Figure 2 and Figure 3The laser cleaning equipment also includes two clamping devices 400, both mounted on the positioning fixture 200. The two clamping devices 400 are located at opposite ends of the positioning fixture 200 and are used to clamp the capacitor 10 onto the positioning fixture 200. It is understood that after the material handling device 110 places the capacitor 10 to be cleaned onto the positioning fixture 200, the two clamping devices 400 on the positioning fixture 200 can clamp the capacitor 10 onto the positioning fixture 200. After laser cleaning is completed, the two clamping devices 400 release the capacitor 10, allowing the material handling device 110 to remove the cleaned capacitor 10 from the positioning fixture 200. During the laser cleaning process, two clamping devices 400 located at both ends of the positioning fixture 200 apply pressure to both ends of the capacitor 10, thereby fixing the capacitor 10 on the positioning fixture 200. This prevents the capacitor 10 from shifting position due to vibration of the laser cleaning equipment during the laser cleaning process, ensuring that the laser beam emitted by the laser device 120 can accurately act on the copper busbar 11 of the capacitor 10, and preventing any omissions in the laser cleaning process.

[0026] refer to Figure 3The clamping device 400 includes an auxiliary arm 410, a pressing arm 420, and a first cylinder 430. The cylinder body of the first cylinder 430 is mounted on the positioning fixture 200. One end of the auxiliary arm 410 is hinged to the middle of the pressing arm 420, and the other end of the auxiliary arm 410 is hinged to the positioning fixture 200. One end of the pressing arm 420 is hinged to the piston rod of the first cylinder 430. The piston rod of the first cylinder 430 can extend to allow the other end of the pressing arm 420 to swing downward and press the capacitor 10 onto the positioning fixture 200. It is understood that the piston rod of the first cylinder 430 extends after the capacitor 10 is transported to the positioning fixture 200 by the material handling device 110. Since one end of the pressure arm 420 is hinged to the piston rod of the first cylinder 430, the piston rod of the first cylinder 430 drives one end of the pressure arm 420 to lift upward. At the same time, the middle part of the pressure arm 420 is hinged to one end of the auxiliary arm 410, and the other end of the auxiliary arm 410 is hinged to the positioning fixture 200. The auxiliary arm 410 plays a fulcrum support and angle guidance role during the lifting of the pressure arm 420. As one end of the pressure arm 420 continues to lift upward, the other end of the pressure arm 420 will swing downward synchronously. When the piston rod of the first cylinder 430 extends to the preset stroke, the downward swinging end of the pressure arm 420 will abut against the capacitor 10 and apply a clamping force to the capacitor 10, so that the capacitor 10 can be firmly pressed by the pressure arm 420 onto the positioning fixture 200, ensuring that the subsequent laser cleaning can proceed smoothly. After the surface of the copper busbar 11 of the capacitor 10 is laser cleaned, the piston rod of the first cylinder 430 retracts and drives one end of the pressure arm 420 to fall down synchronously, causing the other end of the pressure arm 420 to swing upward around the central hinge point, thereby causing the other end of the pressure arm 420 to detach and release the capacitor 10. At this time, the material handling device 110 can smoothly remove the laser-cleaned capacitor 10 from the positioning fixture 200 and transfer it to the subsequent area.

[0027] refer to Figure 3 A flexible block 440 is provided at the other end of the pressure arm 420. The other end of the pressure arm 420 presses the capacitor 10 onto the positioning fixture 200 through the flexible block 440. It is understood that the flexible block 440 can be a common rubber block. The other end of the pressure arm 420 abuts against the capacitor 10 through the flexible block 440, creating a buffer when the flexible block 440 abuts against the capacitor 10. This prevents excessive local pressure on the capacitor 10 caused by the direct pressing of the rigid pressure arm 420, and avoids scratches, dents, or cracks on the capacitor 10 due to direct contact with the pressure arm 420. On the other hand, the flexible block 440 is elastically deformable. When pressed, it deforms according to the shape of the capacitor 10, allowing the flexible block 440 to fit the capacitor 10 more closely, increasing the contact area between the flexible block 440 and the capacitor 10, and thus allowing the flexible block 440 to press the capacitor 10 more firmly.

[0028] refer to Figure 2 and Figure 4The laser cleaning equipment also includes a rotary drive 210. The positioning fixture 200 is rotatably connected to the frame 100. The rotary drive 210 is located on the frame 100, and its output end is connected to the positioning fixture 200. The rotary drive 210 is used to drive the positioning fixture 200 to rotate 180°. It can be understood that after the material handling device 110 transports the capacitor 10 to be cleaned onto the positioning fixture 200, two clamping devices 400 clamp the capacitor 10 onto the positioning fixture 200. Then, the linear drive drives the protective plate 300 closer to the positioning fixture 200, causing the copper busbar 11 of the capacitor 10 to pass through the clearance hole 310 of the protective plate 300 and the protective plate 300 to block the surface of the capacitor 10 near the copper busbar 11. At this time, the front of the copper busbar 11 faces upwards. Subsequently, the laser device 120 is activated to perform laser cleaning on the front side of the copper busbar 11 of the capacitor 10 on the positioning fixture 200. After the laser cleaning of the front side of the copper busbar 11 is completed, the laser device 120 stops working, the rotary drive 210 is activated, and the positioning fixture 200 is rotated 180°, causing the capacitor 10, the protective plate 300, and the two clamping devices 400 to rotate 180° simultaneously. This causes the back side of the copper busbar 11, which was originally facing down, to rotate to an upward position. During the rotation process, the capacitor 10 remains fixed on the positioning fixture 200 under the action of the two clamping devices 400. After the positioning fixture 200 is rotated into position, the rotary drive 210 stops working, and the laser device 120 is activated again to perform laser cleaning on the back side of the copper busbar 11. After the back of the copper busbar 11 is laser cleaned, the laser device 120 stops working, the positioning fixture 200 is flipped and reset under the drive of the rotary drive 210, the linear drive moves the protective plate 300 away from the capacitor 10, the two clamping devices 400 release the capacitor 10, and finally the material picking device 110 takes the capacitor 10, which has been laser cleaned on both the front and back, from the positioning fixture 200 and transfers it to the subsequent area.

[0029] As one embodiment of this utility model, the laser cleaning equipment also includes a third cylinder. The cylinder body of the third cylinder is mounted on the frame 100. A limiting hole is provided on the side wall of the positioning fixture 200. After the positioning fixture 200 is rotated 180°, the piston rod of the third cylinder can be inserted into the limiting hole. It can be understood that when the rotary drive 210 drives the positioning fixture 200 to rotate 180°, the rotary drive 210 stops working. At this time, the piston rod of the third cylinder on the frame 100 extends and inserts into the limiting hole on the side wall of the positioning fixture 200. The piston rod of the third cylinder can abut against the wall of the limiting hole, so that the piston rod of the third cylinder can limit the positioning fixture 200, preventing the positioning fixture 200 from shifting due to errors of the rotary drive 210 or equipment vibration, thereby ensuring that the laser device 120 can accurately perform laser cleaning on the back of the copper busbar 11. On the other hand, after the piston rod of the third cylinder is inserted into the limiting hole, it can form a rigid lock on the positioning fixture 200, so that the positioning fixture 200 is stable in the flipped state, avoiding the positioning fixture 200 from shaking during the laser cleaning process, and ensuring that the laser device 120 can smoothly perform laser cleaning on the back of the copper busbar 11. After the back of the copper busbar 11 is laser cleaned, the piston rod of the third cylinder is pulled out from the limiting hole, and the rotation drive 210 drives the positioning fixture 200 to flip and reset.

[0030] refer to Figure 2 and Figure 4 The laser cleaning equipment also includes a sliding base 510 and a linear drive mechanism 500. The sliding base 510 is slidably connected to the frame 100, the positioning fixture 200 is rotatably connected to the sliding base 510, the rotary drive component 210 is mounted on the sliding base 510, and the linear drive mechanism 500 is mounted on the frame 100. The output end of the linear drive mechanism 500 is connected to the sliding base 510, and the linear drive mechanism 500 is used to drive the sliding base 510 to move. It can be understood that during the laser cleaning process performed by the laser device 120, the linear drive mechanism 500 can drive the sliding base 510 to move linearly in the horizontal direction to adapt to the laser cleaning range of the laser device 120, or adjust the cleaning position according to the length of the copper busbar 11 of the capacitor 10, ensuring that the laser emitted by the laser device 120 can fully cover the front and back of the copper busbar 11. In this embodiment of the utility model, the sliding seat 510 can slide in the front-back direction. The sliding seat 510 can be slidably connected to the frame 100 through a common slide rail slider connection method. The linear drive mechanism 500 is a common motor screw nut drive mechanism. The output end of the motor screw nut drive mechanism is connected to the sliding seat 510 to drive the sliding seat 510 to move in the front-back direction.

[0031] In this embodiment of the invention, the laser cleaning equipment further includes a transfer positioning platform for positioning the capacitor 10. The material handling device 110 is used to first transport the capacitor 10 to the transfer positioning platform and then to the positioning fixture 200. It is understood that the material handling device 110 first transports the capacitor 10 to the transfer positioning platform, which can perform preliminary calibration and positioning of the capacitor 10 to correct any positional deviation that occurs during transport and eliminate any transport deviation by the material handling device 110. Then, the material handling device 110 transports the capacitor 10 from the transfer positioning platform to the positioning fixture 200, effectively avoiding inaccurate positioning of the positioning fixture 200 due to initial positional deviation of the capacitor 10, and ensuring that the subsequent laser device 120 can accurately perform laser cleaning on the surface of the copper busbar 11.

[0032] In this embodiment of the invention, the laser cleaning equipment further includes a storage device 130, which stores multiple capacitors 10 to be cleaned, and a picking device 110 for transporting and conveying the capacitors 10 in the storage device 130. The picking device 110 is a robotic gripper commonly used in laser equipment, and the laser device 120 is a multi-axis moving laser generator commonly used in laser equipment, which will not be described further here.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A laser cleaning device, comprising a frame (100), wherein a positioning fixture (200), a laser device (120), and a material handling device (110) are provided on the frame (100), characterized in that, Also includes: A protective plate (300) is movably connected to the positioning fixture (200). The protective plate (300) is provided with a clearance hole (310), which is used for the copper busbar (11) of the capacitor (10) on the positioning fixture (200) to pass through. A linear drive is provided on the positioning fixture (200). The output end of the linear drive is connected to the protective plate (300). The linear drive can drive the protective plate (300) to approach the positioning fixture (200) so that the copper busbar (11) of the capacitor (10) on the positioning fixture (200) passes through the clearance hole (310) and the protective plate (300) blocks the surface of the capacitor (10) on the positioning fixture (200) near the copper busbar (11).

2. The laser cleaning equipment according to claim 1, characterized in that: It also includes two clamping devices (400), both of which are disposed on the positioning fixture (200). The two clamping devices (400) are located at both ends of the positioning fixture (200), and both clamping devices (400) are used to clamp the capacitor (10) on the positioning fixture (200).

3. The laser cleaning equipment according to claim 2, characterized in that: The pressing device (400) includes an auxiliary arm (410), a pressing arm (420), and a first cylinder (430). The cylinder body of the first cylinder (430) is mounted on the positioning fixture (200). One end of the auxiliary arm (410) is hinged to the middle of the pressing arm (420), and the other end of the auxiliary arm (410) is hinged to the positioning fixture (200). One end of the pressing arm (420) is hinged to the piston rod of the first cylinder (430). The piston rod of the first cylinder (430) can extend so that the other end of the pressing arm (420) swings downward and presses the capacitor (10) onto the positioning fixture (200).

4. The laser cleaning equipment according to claim 3, characterized in that: The other end of the pressure arm (420) is provided with a flexible block (440), and the other end of the pressure arm (420) presses the capacitor (10) onto the positioning fixture (200) through the flexible block (440).

5. The laser cleaning equipment according to claim 1, characterized in that: It also includes a rotary drive (210), the positioning fixture (200) is rotatably connected to the frame (100), the rotary drive (210) is disposed on the frame (100), the output end of the rotary drive (210) is connected to the positioning fixture (200), and the rotary drive (210) is used to drive the positioning fixture (200) to rotate 180°.

6. The laser cleaning equipment according to claim 5, characterized in that: It also includes a third cylinder, the cylinder body of which is mounted on the frame (100), and a limiting hole is provided on the side wall of the positioning fixture (200). After the positioning fixture (200) is rotated 180°, the piston rod of the third cylinder can be inserted into the limiting hole.

7. The laser cleaning equipment according to claim 5, characterized in that: It also includes a sliding seat (510) and a linear drive mechanism (500). The sliding seat (510) is slidably connected to the frame (100). The positioning fixture (200) is rotatably connected to the sliding seat (510). The rotary drive (210) is disposed on the sliding seat (510). The linear drive mechanism (500) is disposed on the frame (100). The output end of the linear drive mechanism (500) is connected to the sliding seat (510). The linear drive mechanism (500) is used to drive the sliding seat (510) to move.

8. The laser cleaning equipment according to claim 1, characterized in that: It also includes a transfer positioning platform, which is used to position the capacitor (10), and the material handling device (110) is used to first transport the capacitor (10) to the transfer positioning platform and then to the positioning fixture (200).

9. The laser cleaning equipment according to claim 1, characterized in that: The inner wall of the clearance hole (310) is provided with an annular groove (320), and a sealing ring (330) is engaged in the annular groove (320). The sealing ring (330) is used for the copper busbar (11) of the capacitor (10) to pass through, so that the inner wall of the sealing ring (330) can keep against the copper busbar (11) of the capacitor (10).

10. The laser cleaning equipment according to claim 9, characterized in that: The protective plate (300) is provided with a disassembly port (340), which is connected to the annular slot (320).

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