Plasma cleaning equipment for automobile body in white

Abstract

The invention discloses automobile body-in-white plasma cleaning equipment, and relates to the technical field of plasma cleaning, the equipment comprises a mechanical body, the mechanical body comprises a mounting arm arranged on the mechanical body, a pipeline fixing block is fixedly mounted on the surface of the mounting arm, and a mounting circular truncated cone is fixedly mounted on the surface of the pipeline fixing block; an electrified wire tube for supplying power to the two plasma tubes is fixedly mounted on the pipeline fixing block, one end of the electrified wire tube is connected with external power supply equipment, a timer is arranged on the external power supply equipment, and the electrified wire tube is fixedly connected with the inner wall of the mounting circular truncated cone; the interior of the electromagnetic mechanism is electrified again, so that the plasma tubes move vertically upwards to drive the power connection head to be in butt joint with the electrified wire tube, the external power supply equipment is electrified again, and the mounting arm returns to a main program to run to continue plasma cleaning, and therefore, the plasma tubes are automatically switched; and the service life of the plasma tube is prevented from being influenced by excessive heat during long-time working.

Description

Technical Field

[0001] The present invention relates to the technical field of plasma cleaning, and in particular to a plasma cleaning device for an automobile body-in-white. Background Art

[0002] At present, with the development of industry, the use of robotic arms has enabled manual production lines to gradually develop into intelligent production lines. Robotic arms combined with fixtures can replace manual operations. On the one hand, it reduces the labor input of manual production, and on the other hand, it ensures the consistency of the product production process and improves product quality, especially for the automobile production process, which increases the production efficiency of the product.

[0003] Currently, during the processing of automobile body-in-white (BIW), the body needs to be cleaned with a plasma spray gun. Existing equipment uses a robot arm and a plasma spray gun to clean the BIW under program control. However, the electronic components inside the plasma spray gun heat up after working for a long time, making it prone to malfunction. Manual replacement of the plasma spray gun is required, causing the robot arm to stop for a long time, affecting production efficiency.

[0004] Based on this, the present invention designs a plasma cleaning device for automobile body-in-white to solve the above problems. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a plasma cleaning device for automobile body-in-white, aiming to solve the technical problems existing in the prior art mentioned in the background technology.

[0006] The embodiment of the present invention is implemented as follows: a plasma cleaning device for automobile body-in-white, the device comprising: Mechanical body: including a mounting arm provided on the mechanical body, a pipe fixing block fixedly mounted on the surface of the mounting arm, a mounting truncated platform fixedly mounted on the surface of the pipe fixing block, a power supply pipe for supplying power to the two plasma tubes fixedly mounted on the pipe fixing block, one end of the power supply pipe connected to an external power supply device provided with a timer, and the power supply pipe fixedly connected to the inner wall of the mounting truncated platform; The fixing mechanism includes a fixing cylinder mounted on the mounting table and used to fix the plasma tube by cooperating with fixing bolts. The surface of the plasma tube is fixed with an electric head that contacts the other end of the wired tube and is energized. Electromagnetic mechanism: used to drive the plasma tube to move vertically; Closing mechanism: isolates the outside world from the power terminal of the electrical connector by cooperating with the driving mechanism; Rotating mechanism: drives the plasma tube to rotate by cooperating with the driving mechanism.

[0007] Furthermore, the electromagnetic mechanism includes an electromagnet fixedly mounted on the mounting table, and also includes a permanent magnet fixedly mounted on the fixed cylinder. A sliding column is fixedly mounted on the surface of the fixed cylinder, and a connecting spring is fixedly mounted on the surface of the sliding column. The other end of the connecting spring is connected to the rotating mechanism. The sliding column passes through the rotating mechanism and is slidably connected to the rotating mechanism. The magnetism of the electromagnet after power is applied is different from the magnetism of the permanent magnet.

[0008] Furthermore, the closing mechanism includes a rotating gear ring mounted on the fixed cylinder, the surface of the rotating gear ring is connected to the linkage turntable through two connecting columns, the linkage turntable is rotatably connected to the fixed circular plate, and the two rotating columns are matched with the arc grooves opened on the fixed circular plate, the trajectory radius of the arc grooves is equal, and the fixed circular plate is provided with a straight groove matched with the two sliding semicircular sleeves, and the surface of the linkage turntable is provided with a near-center groove matched with the two sliding semicircular sleeves, the trajectory radius of the near-center groove gradually approaches the central axis of the linkage turntable, the two sliding semicircular sleeves are slidably connected to the surface of the fixed circular plate, the two sliding semicircular sleeves can form a complete open cylinder, and the diameter of the open cylinder is equal to the diameter of the electrical head, the fixed circular plate is fixedly mounted on the rotating mechanism, and the fixed circular plate is slidably connected to the fixed cylinder, an inner arc rack and an outer arc rack matching the rotating gear ring are fixedly mounted on the mounting table, and a rotation damper is provided on the linkage turntable.

[0009] Furthermore, the rotating mechanism includes a rotating gear rotatably connected to the driving mechanism, the output end of the rotating gear is connected to the input end of the bevel gear set, the output end of the bevel gear set is coaxially fixedly mounted on the linkage rotating shaft, a connecting block is fixedly mounted on the surface of the linkage rotating shaft, the sliding column passes through the connecting block and is slidably connected to the connecting block, the other end of the connecting spring is connected to the connecting block, the fixed circular plate is fixedly mounted on the connecting block, two fixed support rods are fixedly mounted on the surface of the connecting block, each fixed support rod is slidably connected to the fixed cylinder, an inner ring tooth and an outer ring tooth matching the rotating gear are provided on the mounting circular platform, and a rotation damper is provided on the fixed support rod.

[0010] Furthermore, the driving mechanism includes a driving motor fixedly mounted on the mounting table, the output end of the driving motor passes through the mounting table and is rotatably connected to the mounting table, the output end of the driving motor is fixedly mounted with a main rotating disk, the rotating gear passes through the main rotating disk and is rotatably connected to the main rotating disk, and the linkage shaft is rotatably connected to the main rotating disk.

[0011] Furthermore, the inner ring teeth and the outer ring teeth are arranged in a non-rotationally symmetrical manner.

[0012] Furthermore, the sliding semicircular sleeve is made of elastic rubber material, and a soft rubber pad is provided at the contact position between the plasma tube and the fixing bolt.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention protects the surface of the connecting head through the function of the sealing mechanism, thereby preventing external dust from falling on the surface of the connecting head when the plasma tube is switched, causing the conductivity to be affected when the connecting head and the wired pipe are connected again later, thereby achieving the purpose of automatically protecting the connecting head from dust contamination.

[0014] 2. The present invention energizes the electromagnetic mechanism again, causing the plasma tube to move vertically upward to drive the electrical connector to dock with the wired tube. The external power supply device is energized again, and the mounting arm returns to the main program to continue the plasma cleaning operation on the vehicle body, thereby achieving the purpose of automatically switching the plasma tube and avoiding the effect of excessive heat caused by long-term operation on the service life of the plasma tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a plasma cleaning device for an automobile body-in-white provided by an embodiment of the present invention; Figure 2 It is a schematic cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 This is another cross-sectional structural schematic diagram of an automobile body-in-white plasma cleaning device according to the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point B; Figure 6 This is a schematic diagram of the exploded structure of some parts of an automobile body-in-white plasma cleaning device according to the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at C; Figure 8 For the present invention Figure 6 A schematic diagram of the enlarged structure at D; Figure 9 For the present invention Figure 6 A schematic diagram of the structure at E is enlarged; Figure 10 For the present invention Figure 6 Enlarged structural diagram of F.

[0016] In the figure: 1. Mechanical body; 101. Mounting arm; 102. Pipe fixing block; 103. Mounting platform; 104. Electrical conduit; 2. Fixing mechanism; 201. Plasma tube; 202. Fixing cylinder; 203. Fixing bolt; 204. Electrical connection head; 3. Electromagnetic mechanism; 301. Electromagnet; 302. Sliding column; 303. Connecting spring; 304. Permanent magnet; 4. Closing mechanism; 401. Rotating Ring gear; 402, linkage turntable; 403, sliding semicircular sleeve; 404, fixed circular plate; 405, inner arc rack; 406, outer arc rack; 5. Rotating mechanism; 501, rotating gear; 502, bevel gear set; 503, linkage rotating shaft; 504, connecting block; 505, fixed support rod; 506, inner ring teeth; 507, outer ring teeth; 6. Driving mechanism; 601, driving motor; 602, main rotating disk. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] It will be understood that the terms "first," "second," etc. used herein may be used to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

[0019] like Figure 1 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 9 As shown, in one embodiment, a plasma cleaning device for an automobile body in white is provided, the device comprising: Mechanical body 1: includes a mounting arm 101 mounted on the mechanical body 1. A pipe fixing block 102 is fixedly mounted on the surface of the mounting arm 101. A mounting platform 103 is fixedly mounted on the surface of the pipe fixing block 102. A power supply conduit 104 for supplying power to the two plasma tubes 201 is fixedly mounted on the pipe fixing block 102. One end of the power supply conduit 104 is connected to an external power supply device equipped with a timer. The power supply conduit 104 is fixedly connected to the inner wall of the mounting platform 103. Fixing mechanism 2: includes a fixing cylinder 202 mounted on the mounting platform 103 and used to fix the plasma tube 201 by cooperating with the fixing bolt 203. The surface of the plasma tube 201 is fixedly mounted with an electrical connector 204 that contacts the other end of the energized conduit 104 for energization. Electromagnetic mechanism 3: used to drive the plasma tube 201 to move in the vertical direction; The sealing mechanism 4 is used to isolate the outside world from the power connection end of the power connection head 204 by cooperating with the driving mechanism 6; Rotating mechanism 5: cooperates with driving mechanism 6 to drive plasma tube 201 to rotate.

[0020] In practical application, the embodiment of the present invention is as follows: Figure 1 and Figure 5 As shown, when the body in white is plasma cleaned, the mounting arm 101 is operated under the action of the program to drive the plasma tube 201 to move and clean the corresponding position of the body in white, and at the same time the timer on the external power supply device starts timing. When the corresponding running time is reached, the external power supply device is powered off, and the mounting arm 101 runs the power-off program to return to its original position to avoid interference with the body in white when the plasma tube 201 is switched. At this time, as the external power supply device is powered off, the electromagnetic mechanism 3 is powered off. The power off of the electromagnetic mechanism 3 causes the fixed cylinder 202 to move vertically downward under the elastic potential energy of the electromagnetic mechanism 3, thereby driving the electric head 204 to move vertically downward and break away from the wired pipe 104. At the same time, the electric head 204 moves from the inside of the mounting table 103 to the outside. When the electric head 204 completes the movement, the plasma tube 201 is driven to rotate under the action of the driving mechanism 6. During the revolution of the plasma tube 201, as shown in FIG. Figure 7 、 Figure 8 and Figure 9As shown, the surface of the connecting head 204 is protected by the action of the sealing mechanism 4, so that external dust is prevented from falling on the surface of the connecting head 204 when the plasma tube 201 is switched, resulting in the electrical conductivity being affected when the connecting head 204 is connected to the wire pipe 104 again in the later stage, thereby achieving the purpose of automatically protecting the connecting head 204 from being contaminated by dust. At the same time, under the action of the driving mechanism 6, the sealing mechanism 4 at the symmetrical end moves in the opposite direction when it approaches the wire pipe 104, so that the sealing mechanism 4 at the symmetrical end no longer seals the connecting head 204, ensuring the normal connection between the connecting head 204 and the wire pipe 104. At the same time, as the driving mechanism 6 synchronously drives the revolution of the symmetrical end plasma tube 201, the rotating mechanism 5 drives the plasma tube 201 to rotate away from the central axis of the mounting table 103. At this time, the plasma tube 201 at the symmetrical end rotates to a vertical state. state, and under the action of the driving mechanism 6, the rotating mechanism 5 is used to rotate the plasma tube 201 at the initial end from the vertical state to the horizontal state, thereby avoiding the plasma tube 201 that is not at the working end from generating spatial interference with the white body during plasma cleaning, thereby achieving the purpose of expanding the movement space range of the plasma tube 201 at the working end and improving the flexibility of the movement of the plasma tube 201 at the working end. As the plasma tube 201 at the symmetrical end revolves to the working end, the electromagnetic mechanism 3 is energized again, causing the plasma tube 201 to move vertically upward and drive the connecting head 204 to dock with the power-carrying pipe 104. The external power supply equipment is energized again, and the mounting arm 101 returns to the main program to continue the plasma cleaning operation on the body, thereby achieving the purpose of automatically switching the plasma tube 201 and avoiding the effect of excessive heat caused by long-term operation on the service life of the plasma tube 201.

[0021] like Figure 5 As shown, as a preferred embodiment of the present invention, the electromagnetic mechanism 3 includes an electromagnet 301 fixedly mounted on the mounting table 103, and also includes a permanent magnet 304 fixedly mounted on the fixed cylinder 202. A sliding column 302 is fixedly mounted on the surface of the fixed cylinder 202, and a connecting spring 303 is fixedly mounted on the surface of the sliding column 302. The other end of the connecting spring 303 is connected to the rotating mechanism 5. The sliding column 302 runs through the rotating mechanism 5 and is slidably connected to the rotating mechanism 5. The magnetism of the electromagnet 301 after power is applied is different from the magnetism of the permanent magnet 304.

[0022] In practical application of the embodiment of the present invention, when the external power supply device is powered off, Figure 5As shown, the electromagnet 301 loses its magnetism after being powered off. At this time, the sliding column 302 is driven to move vertically downward under the action of the connecting spring 303, and then the connecting head 204 is driven to move vertically downward through the fixed cylinder 202 to separate from the wire tube 104. At the same time, the connecting head 204 moves to the outside of the mounting table 103, which is convenient for the protection of the energized end of the connecting head 204 in the later stage. When the plasma tube 201 at the symmetrical end moves to the working end, the electromagnet 301 is re-energized to attract the permanent magnet 304 to move vertically upward, and then the fixed cylinder 202 is driven to move vertically upward through the connecting spring 303. The fixed cylinder 202 drives the connecting head 204 upward to make close contact with the wire tube 104, thereby achieving the purpose of automatic switching.

[0023] like Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, as another preferred embodiment of the present invention, the closing mechanism 4 includes a rotating ring gear 401 mounted on the fixed cylinder 202, the surface of the rotating ring gear 401 is connected to the linkage turntable 402 through two connecting columns, the linkage turntable 402 is rotatably connected to the fixed circular plate 404, and the two rotating columns are matched with the arc grooves opened on the fixed circular plate 404, the trajectory radius of the arc grooves is equal, and the fixed circular plate 404 is provided with a linear groove matched with the two sliding semicircular sleeves 403, and the surface of the linkage turntable 402 is provided with a near-center groove matched with the two sliding semicircular sleeves 403 The trajectory radius of the proximal groove gradually approaches the central axis of the linkage turntable 402. The two sliding semicircular sleeves 403 are both slidably connected to the surface of the fixed circular plate 404. The two sliding semicircular sleeves 403 can cooperate to form a complete open cylinder, and the diameter of the open cylinder is equal to the diameter of the electrical head 204. The fixed circular plate 404 is fixedly mounted on the rotating mechanism 5, and the fixed circular plate 404 is slidably connected to the fixed cylinder 202. The inner arc rack 405 and the outer arc rack 406 that cooperate with the rotating gear ring 401 are fixedly mounted on the mounting table 103, and a rotation damper is provided on the linkage turntable 402.

[0024] In practical application of the embodiment of the present invention, after the electromagnetic mechanism 3 completes the movement, the driving mechanism 6 drives the plasma tube 201 to revolve. Figure 7 and Figure 9As shown, during the revolution, the rotating ring gear 401 engages with the inner arc rack 405 to drive the rotating ring gear 401 to rotate, and the rotation of the rotating ring gear 401 drives the linkage turntable 402 to rotate synchronously. The linkage turntable 402 enables the two sliding semicircular sleeves 403 to move toward the central axis of the rotating ring gear 401 through the proximal groove opened on it and the linear groove opened on the fixed circular plate 404, so that the two sliding semicircular sleeves 403 form a complete open cylinder, which isolates and protects the energized end of the connecting head 204 to prevent external dust from falling on the connecting head 204 and affecting the conductivity. Figure 8 and Figure 10 As shown, at the same time, the rotating gear ring 401 at the symmetrical end engages with the outer arc rack 406 during revolution, driving the rotating gear ring 401 at the symmetrical end to rotate in the opposite direction, thereby opening the sliding semicircular sleeve 403 at the symmetrical end, so that under the action of the electromagnetic mechanism 3, the electrical connector 204 at the symmetrical end is docked with the wire tube 104, achieving the purpose of automatically opening the open cylinder when switching.

[0025] like Figure 6 、 Figure 7 and Figure 8 As shown, as another preferred embodiment of the present invention, the rotating mechanism 5 includes a rotating gear 501 rotatably connected to the driving mechanism 6, the output end of the rotating gear 501 is connected to the input end of the bevel gear set 502, and the output end of the bevel gear set 502 is coaxially fixedly mounted on the linkage rotating shaft 503, and a connecting block 504 is fixedly mounted on the surface of the linkage rotating shaft 503, the sliding column 302 passes through the connecting block 504 and is slidably connected to the connecting block 504, the other end of the connecting spring 303 is connected to the connecting block 504, the fixed circular plate 404 is fixedly mounted on the connecting block 504, and two fixed support rods 505 are fixedly mounted on the surface of the connecting block 504, each fixed support rod 505 is slidably connected to the fixed cylinder 202, and the mounting table 103 is provided with inner ring teeth 506 and outer ring teeth 507 that cooperate with the rotating gear 501, and a rotation damper is provided on the fixed support rod 505.

[0026] In practical application of the embodiment of the present invention, when the driving mechanism 6 drives the plasma tube 201 to revolve, Figure 6 、 Figure 7 and Figure 8As shown, the rotating gear 501 is driven to rotate by meshing with the outer ring teeth 507. At this time, the rotation of the rotating gear 501 drives the connecting block 504 to rotate through the bevel gear set 502. The rotation of the connecting block 504 drives the fixed cylinder 202 to rotate through the fixed support rod 505, thereby driving the plasma tube 201 to rotate toward the central axis of the mounting table 103, so that the plasma tube 201 moves from a vertical state to a horizontal state. At the same time, the rotating gear 501 at the symmetrical end drives the rotating gear 501 to reverse through the meshing action with the inner ring teeth 506, thereby causing the symmetrical end to produce a movement opposite to the above movement. At this time, the plasma tube 201 at the symmetrical end moves away from the central axis of the mounting table 103, thereby causing the plasma tube 201 at the symmetrical end to move from a horizontal state to a vertical state, reaching an automatic switching state to facilitate the subsequent symmetrical terminal head 204 to connect with the wired conduit 104.

[0027] like Figure 2 and Figure 3 As shown, as another preferred embodiment of the present invention, the driving mechanism 6 includes a driving motor 601 fixedly mounted on the mounting table 103, the output end of the driving motor 601 passes through the mounting table 103 and is rotatably connected to the mounting table 103, the output end of the driving motor 601 is fixedly mounted with a main rotating disk 602, the rotating gear 501 passes through the main rotating disk 602 and is rotatably connected to the main rotating disk 602, and the linkage shaft 503 is rotatably connected to the main rotating disk 602.

[0028] In actual application of the embodiment of the present invention, after the electromagnetic mechanism 3 completes power off, the drive motor 601 starts to move. The operation of the drive motor 601 drives the main rotating disk 602 to rotate. The rotation of the main rotating disk 602 drives the plasma tube 201 to revolve through the rotating mechanism 5, thereby triggering the movement of the closing mechanism 4 and the rotating mechanism 5 in the process of switching the plasma tube 201, completing the protection of the docking head 204 and changing the posture of the plasma tube 201.

[0029] like Figure 6 、 Figure 7 and Figure 8 As shown, as another preferred embodiment of the present invention, the inner ring teeth 506 and the outer ring teeth 507 are arranged in a non-rotationally symmetrical manner.

[0030] In actual application of the embodiment of the present invention, the non-rotationally symmetrical arrangement of the inner ring teeth 506 and the outer ring teeth 507 ensures that when the plasma tube 201 and the symmetrical end plasma tube 201 are in orbital coordination under the action of the driving mechanism 6, the rotation will not occur simultaneously, thereby reducing the occupied area of ​​the main rotating disk 602, improving the spatial flexibility of the movement of the installation arm 101, and avoiding spatial interference when the installation arm 101 moves due to the excessive area of ​​the main rotating disk 602.

[0031] like Figure 4 、 Figure 5 and Figure 9 As shown in FIG. 4 , as another preferred embodiment of the present invention, the sliding semicircular sleeve 403 is made of elastic rubber material, and a soft rubber pad is provided at the contact position between the plasma tube 201 and the fixing bolt 203 .

[0032] In practical application, the embodiment of the present invention is as follows: Figure 9 As shown, by setting the sliding semicircular sleeve 403 to be made of elastic rubber material, the two sliding semicircular sleeves 403 can avoid contact with the power connector 204 to generate hard friction when moving towards each other, thereby avoiding wear of the power connector 204. Figure 5 As shown, a soft rubber pad is provided on the plasma tube 201 so that when the fixing bolt 203 is tightened on the plasma tube 201 , it can avoid hard squeezing on the surface of the plasma tube 201 and causing wear and scratches on the surface of the plasma tube 201 .

[0033] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plasma cleaning device for automobile body-in-white, characterized in that: The device comprises: The mechanical body (1) comprises a mounting arm (101) provided on the mechanical body (1), a pipe fixing block (102) being fixedly installed on the surface of the mounting arm (101), a mounting truncated platform (103) being fixedly installed on the surface of the pipe fixing block (102), a power supply pipe (104) for supplying power to two plasma tubes (201) being fixedly installed on the pipe fixing block (102), one end of the power supply pipe (104) being connected to an external power supply device, a timer being provided on the external power supply device, and the power supply pipe (104) being fixedly connected to the inner wall of the mounting truncated platform (103); The fixing mechanism (2) comprises a fixing cylinder (202) mounted on the mounting table (103) and used to fix the plasma tube (201) by cooperating with the fixing bolt (203); a power connector (204) is fixedly mounted on the surface of the plasma tube (201) and contacts the other end of the power tube (104) for power supply; Electromagnetic mechanism (3): used to drive the plasma tube (201) to move in the vertical direction; The sealing mechanism (4) is used to isolate the outside world from the power connection end of the power connection head (204) by cooperating with the driving mechanism (6); Rotating mechanism (5): drives the plasma tube (201) to rotate by cooperating with the driving mechanism (6).

2. The automobile body-in-white plasma cleaning equipment according to claim 1, characterized in that: The electromagnetic mechanism (3) includes an electromagnet (301) fixedly mounted on the mounting table (103), and also includes a permanent magnet (304) fixedly mounted on the fixed cylinder (202). A sliding column (302) is fixedly mounted on the surface of the fixed cylinder (202). A connecting spring (303) is fixedly mounted on the surface of the sliding column (302). The other end of the connecting spring (303) is connected to the rotating mechanism (5). The sliding column (302) passes through the rotating mechanism (5) and is slidably connected to the rotating mechanism (5). The magnetism of the electromagnet (301) after being energized is different from the magnetism of the permanent magnet (304).

3. The automobile body-in-white plasma cleaning equipment according to claim 2, characterized in that: The closing mechanism (4) includes a rotating gear ring (401) mounted on a fixed cylinder (202), the surface of the rotating gear ring (401) is connected to the linkage turntable (402) via two connecting columns, the linkage turntable (402) is rotatably connected to the fixed circular plate (404), and the two rotating columns are matched with the arc grooves provided on the fixed circular plate (404), the trajectory radius of the arc grooves is equal, and the fixed circular plate (404) is provided with a linear groove matched with the two sliding semicircular sleeves (403), and the surface of the linkage turntable (402) is provided with a near-center groove matched with the two sliding semicircular sleeves (403), and the trajectory radius of the near-center groove gradually increases. Close to the central axis of the linkage turntable (402), two sliding semicircular sleeves (403) are both slidably connected to the surface of the fixed circular plate (404). The two sliding semicircular sleeves (403) cooperate to form a complete open cylinder, and the diameter of the open cylinder is equal to the diameter of the electrical connector (204). The fixed circular plate (404) is fixedly mounted on the rotating mechanism (5), and the fixed circular plate (404) is slidably connected to the fixed cylinder (202). An inner arc rack (405) and an outer arc rack (406) that cooperate with the rotating gear ring (401) are fixedly mounted on the mounting table (103). A rotation damper is provided on the linkage turntable (402).

4. The automobile body-in-white plasma cleaning equipment according to claim 3, characterized in that: The rotating mechanism (5) includes a rotating gear (501) rotatably connected to the driving mechanism (6), the output end of the rotating gear (501) is connected to the input end of the bevel gear set (502), the output end of the bevel gear set (502) is coaxially fixedly mounted on the linkage rotating shaft (503), a connecting block (504) is fixedly mounted on the surface of the linkage rotating shaft (503), a sliding column (302) passes through the connecting block (504) and is slidably connected to the connecting block (504), and a connecting spring (30 3) is connected to the connecting block (504), the fixed circular plate (404) is fixedly mounted on the connecting block (504), two fixed support rods (505) are fixedly mounted on the surface of the connecting block (504), each fixed support rod (505) is slidably connected to the fixed cylinder (202), the mounting table (103) is provided with inner ring teeth (506) and outer ring teeth (507) that match the rotating gear (501), and a rotation damper is provided on the fixed support rod (505).

5. The automobile body-in-white plasma cleaning equipment according to claim 4, characterized in that: The driving mechanism (6) includes a driving motor (601) fixedly mounted on the mounting truncated platform (103), an output end of the driving motor (601) passing through the mounting truncated platform (103) and being rotationally connected to the mounting truncated platform (103), a main rotating disk (602) being fixedly mounted on the output end of the driving motor (601), a rotating gear (501) passing through the main rotating disk (602) and being rotationally connected to the main rotating disk (602), and a linkage rotating shaft (503) being rotationally connected to the main rotating disk (602).

6. The automobile body-in-white plasma cleaning equipment according to claim 4, characterized in that: The inner ring teeth (506) and the outer ring teeth (507) are arranged in a non-rotationally symmetrical manner.

7. The automobile body-in-white plasma cleaning equipment according to claim 3, characterized in that: The sliding semicircular sleeve (403) is made of elastic rubber material, and a soft rubber pad is provided at the contact position between the plasma tube (201) and the fixing bolt (203).

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