Production line and method for pretreatment of vacuum arc-extinguishing chamber

Abstract

The invention discloses a production line and a method for pretreatment of a vacuum arc-extinguishing chamber, workpieces are automatically transferred among special stations by a robot, manual carrying, waiting and loading and unloading time among working procedures is eliminated, and a carrying robot, a loading area, a plasma cleaning area, a brushing area and an unloading area are all connected with a control unit. Different working areas can be controlled through the control unit, so that the overall processing time of a single product is remarkably shortened, the production efficiency is higher, each workpiece is processed at the same position in a unified processing flow, the processing quality is more unified and stable, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This invention belongs to the field of vacuum interrupter production technology, and relates to a production line and method for pretreatment of vacuum interrupters. Background Technology

[0002] Traditional pretreatment of vacuum interrupters for solid-sealed poles involves manual alcohol cleaning and brushing of primer. Alcohol cleaning fails to completely remove surface contaminants, and manual brushing easily results in missed areas and uneven coating thickness, leading to insufficient interfacial bonding strength and fluctuating insulation performance. This process is inefficient, with long processing times per unit and difficulty in achieving continuous production. The traditional pretreatment process for vacuum interrupters relies heavily on manual operation, resulting in low efficiency, inconsistent quality, and high labor intensity. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of traditional vacuum interrupter pretreatment processes relying mainly on manual operation, resulting in low processing efficiency, high labor intensity, and unstable product quality. This invention provides a production line and method for vacuum interrupter pretreatment.

[0004] To achieve the above objectives, the present invention employs the following technical solution: A production line for pretreatment of vacuum interrupters includes a handling robot capable of circumferential rotation; The outer periphery of the transport robot is arranged with a loading area, a plasma cleaning area, a brushing area and a unloading area in sequence; The transport robot is used to sequentially transfer the vacuum interrupter chamber to be processed from the loading area to the plasma cleaning area, the brushing area and the unloading area; The transport robot, the loading area, the plasma cleaning area, the brushing area, and the unloading area are all connected to the control unit.

[0005] A further improvement of the present invention is that: The transport robot is a six-degree-of-freedom robot, and its end effector is equipped with a gripping mechanism.

[0006] The feeding area includes a feeding area slide rail, a worktable is provided on the feeding area slide rail, a feeding tray is placed on the worktable, and the worktable can slide back and forth along the feeding area slide rail.

[0007] The feeding area slide rails are arranged in two sets at intervals, and each set of feeding area slide rails is equipped with a corresponding worktable.

[0008] The plasma cleaning area includes a plasma cleaning robot, and a plasma cleaning worktable is placed on one side of the plasma cleaning robot. The plasma cleaning worktable is capable of circumferential rotation.

[0009] A positioning seat is provided on the plasma cleaning workbench, which is used to position the vacuum interrupter to be processed. A position sensor is installed on the plasma cleaning workbench, and the position sensor is used to monitor the installation position of the vacuum interrupter.

[0010] The positioning base includes a positioning platform, and several positioning slide rails are distributed circumferentially along the center of the positioning platform. The positioning slide rails are equipped with grippers, which can slide along the positioning slide rails. The vacuum interrupter to be processed is sleeved on the multiple grippers.

[0011] The painting area includes a painting robot and a painting workbench, the painting workbench being able to rotate circumferentially; A position sensor is installed on the brushing workbench, which is used to monitor the installation position of the vacuum interrupter.

[0012] The control unit is connected to status indicator lights, which are all connected to the transport robot, the loading area, the plasma cleaning area, the brushing area, and the unloading area. The status indicator light is used to display the current working status. The status indicator light includes green, yellow and red. When each work area has completed its work, the status indicator light is green. When each work area is working normally, the status indicator light is yellow. When any work area is in an abnormal state, the status indicator light is red.

[0013] A method for pretreatment of a vacuum interrupter includes the following steps: Install a die head fixture on each vacuum interrupter to be processed, place the vacuum interrupter with the die head fixture on the loading area, and scan the code to bind the product information of each vacuum interrupter; The handling robot picks up the vacuum interrupter in the loading area and moves it to the plasma cleaning area for plasma cleaning. After cleaning, the handling robot picks up the vacuum interrupter and moves it to the brushing area for brushing. During brushing, the corresponding brush head is selected according to the product information of each vacuum interrupter. After the coating is completed, the handling robot picks up the vacuum interrupter and moves it to the unloading area to complete the pretreatment.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses a production line for pretreatment of vacuum interrupters. Workpieces are automatically transferred between dedicated workstations by robots, eliminating manual handling, waiting, and loading / unloading time between processes. The handling robots, loading area, plasma cleaning area, brushing area, and unloading area are all connected to control units. The control units can control different work areas, thereby significantly shortening the overall processing time of a single product and increasing production efficiency. Each workpiece is processed in the same position and with a unified processing flow, resulting in more consistent and stable processing quality and reducing the labor intensity of workers.

[0015] Furthermore, in this invention, the feeding area includes a slide rail, on which a worktable is provided, and a feeding tray is placed. The worktable can slide back and forth along the slide rail, making it more convenient to feed the equipment, reducing the equipment's waiting time for feeding, and increasing efficiency.

[0016] Furthermore, in this invention, the plasma cleaning workbench can rotate circumferentially. The plasma cleaning workbench, in conjunction with the plasma cleaning robot, can cover the complex outer surface of the arc-extinguishing chamber from multiple angles, solving the quality problems of incomplete and uneven manual cleaning.

[0017] Furthermore, in this invention, a position sensor is installed on the plasma cleaning workbench. The position sensor is used to monitor the installation position of the vacuum interrupter and detect whether the workpiece is correctly placed, thereby improving the safety and operational reliability of the equipment and avoiding batch quality accidents caused by positioning errors.

[0018] Furthermore, in this invention, the positioning seat includes a positioning platform, with several slide rails circumferentially distributed around the center of the positioning platform. Clamping jaws are mounted on the positioning slide rails, and these jaws can slide along the positioning slide rails. The vacuum interrupter to be processed is fitted onto the multiple clamping jaws, which slide on the positioning slide rails. This positioning seat can accommodate vacuum interrupters of different diameters. The multiple clamping jaws uniformly grip the workpiece circumferentially, providing a stable and reliable clamping force. The tightness of the clamping jaws can be adjusted via the positioning slide rails.

[0019] Furthermore, in this invention, a status indicator light is provided at the control unit. The status indicator light is used to display the current working status. The status indicator light includes green, yellow and red, which facilitates on-site management personnel to monitor and schedule, and realizes visual management.

[0020] This invention also discloses a method for pretreatment of vacuum interrupters. Workpieces are automatically transferred between dedicated workstations by robots, eliminating manual handling, waiting, and loading / unloading time between processes. The handling robots, loading area, plasma cleaning area, brushing area, and unloading area are all connected to control units. The control units can control different work areas, thereby shortening the overall processing time of a single product and increasing production efficiency. Each workpiece is processed in the same position and with a unified processing flow, resulting in more consistent and stable processing quality and reducing the labor intensity of workers. Furthermore, during brushing, information is bound by scanning codes, and corresponding brush heads are automatically matched for different products, ensuring the thickness and uniformity of the coating and resulting in better processing quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a production line layout diagram for pretreatment of vacuum interrupters according to the present invention; Figure 2 This is a top view of the production line for pretreatment of vacuum interrupters according to the present invention; Figure 3 This is a structural diagram of the brush coating workbench or plasma cleaning workbench of the present invention.

[0023] The components are: 1-vacuum interrupter; 2-loading tray; 3-safety railing; 4-handling robot; 5-plasma cleaning robot; 6-painting robot; 7-brush head placement tray; 8-power distribution cabinet; 9-unloading tray; 10-positioning seat; 11-painting workbench; 12-positioning table; 13-positioning slide rail; 14-gripper; 15-plasma cleaning workbench; 16-unloading area slide rail; 17-loading area slide rail. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0030] The present invention will now be described in further detail with reference to the accompanying drawings: See Figure 1 This invention discloses a production line for pretreatment of vacuum interrupters. The automation solution of this invention effectively solves the defects of traditional processes by using a robot and jet plasma cleaning collaborative system combined with digital control of process parameters.

[0031] Specifically, it includes the following structure: Example 1 See Figures 1 to 2This embodiment discloses a production line for pretreatment of vacuum interrupters, including a transport robot 4, which is capable of circumferential rotation; a loading area, a plasma cleaning area, a brush coating area, and a unloading area are arranged sequentially around the transport robot 4; the transport robot 4 is used to transfer the vacuum interrupter 1 to be treated from the loading area to the plasma cleaning area, the brush coating area, and the unloading area in sequence; the transport robot 4, the loading area, the plasma cleaning area, the brush coating area, and the unloading area are all connected to a control unit.

[0032] Furthermore, in this embodiment, the handling robot 4 realizes the transfer of the arc extinguishing chamber between the loading station, cleaning station, primer coating station, and unloading station.

[0033] Furthermore, in this embodiment, the handling robot 4 is a six-degree-of-freedom robot, and the end effector of the handling robot 4 is equipped with a gripping mechanism, which has strong load capacity, long arm span, and high positioning accuracy.

[0034] Furthermore, in this embodiment, a host computer and PLC control system are used to monitor the status of each workstation equipment in real time and store processing records; a remote diagnostic interface is also supported.

[0035] Furthermore, in this embodiment, a safety guardrail 3 is installed around the perimeter of the work area.

[0036] Example 2 This embodiment discloses a production line for pretreatment of vacuum interrupters, including a transport robot 4 capable of circumferential rotation. A loading area, a plasma cleaning area, a brushing area, and a unloading area are sequentially arranged around the transport robot 4. The transport robot 4 is used to transfer the vacuum interrupter to be treated from the loading area to the plasma cleaning area, brushing area, and unloading area sequentially. The transport robot 4, the loading area, the plasma cleaning area, the brushing area, and the unloading area are all connected to a control unit. A dedicated tray is configured in the loading area, with the trays distributed left and right and interlocked for forward and backward sliding. Specifically, a loading area slide rail 17 is provided, and a worktable is set on the loading area slide rail 17. The loading tray 2 is placed on the worktable, and the worktable can slide back and forth along the loading area slide rail 17.

[0037] Furthermore, in this embodiment, two sets of feeding area slide rails 17 are arranged at intervals, and each set of feeding area slide rails 17 is equipped with a corresponding worktable.

[0038] Example 3 This embodiment discloses a production line for pretreatment of vacuum interrupters, including a transport robot 4 capable of circumferential rotation. A loading area, a plasma cleaning area, a brush coating area, and a unloading area are sequentially arranged around the transport robot 4. The transport robot 4 is used to transfer the vacuum interrupters to be treated from the loading area to the plasma cleaning area, brush coating area, and unloading area sequentially. The transport robot 4, the loading area, the plasma cleaning area, the brush coating area, and the unloading area are all connected to a control unit. The plasma cleaning area includes a plasma cleaning robot 5, with a worktable 9 placed on one side of the plasma cleaning robot 5. The plasma cleaning worktable 9 is capable of circumferential rotation.

[0039] Furthermore, in this embodiment, the plasma cleaning robot 5 is equipped with dual air paths, including compressed air and a backup air path.

[0040] Furthermore, in this embodiment, the plasma cleaning robot 5 is a 6-DOF modular design with programmable cleaning path control, covering 100% of the cleaning surface of the arc-extinguishing chamber, and has an XYZ three-axis motion mechanism and a pneumatic chuck clamping mechanism.

[0041] See Figure 3 Furthermore, in this embodiment, a positioning seat 10 is provided on the plasma cleaning worktable 15. The positioning seat 10 is used to position the vacuum interrupter to be processed. A position sensor is provided on the plasma cleaning worktable 15. The position sensor is used to monitor the installation position of the vacuum interrupter. When the workpiece positioning is abnormal, the position sensor will detect the abnormal information and the equipment will stop working.

[0042] Furthermore, in this embodiment, the positioning base 10 includes a positioning platform 12, and a plurality of positioning slide rails 13 are circumferentially distributed along the center of the positioning platform 12. The positioning slide rails 13 are provided with grippers 14, which can slide along the positioning slide rails 13. The vacuum interrupter to be processed is sleeved on the plurality of grippers 14.

[0043] Furthermore, in this embodiment, the gripper 14 is provided with three grippers.

[0044] Furthermore, in this embodiment, the plasma cleaning worktable 15 is rotated by a pneumatic control circuit. The positioning seat can be adapted to vacuum interrupters of different diameters. Multiple grippers uniformly clamp the workpiece from the circumference, providing a stable and reliable clamping force. The tightness of the grippers can be adjusted by the slide rail.

[0045] Furthermore, in this embodiment, the vertical height of the gripper 14 is greater than 12.5 cm.

[0046] Example 4 This embodiment discloses a production line for pretreatment of vacuum interrupters, including a transport robot 4 capable of circumferential rotation; a loading area, a plasma cleaning area, a brush coating area, and a unloading area are sequentially arranged around the transport robot 4; the transport robot 4 is used to transfer the vacuum interrupter to be treated from the loading area to the plasma cleaning area, brush coating area, and unloading area sequentially; the transport robot 4, the loading area, the plasma cleaning area, the brush coating area, and the unloading area are all connected to a control unit. The brush coating area includes a brush coating robot 6 and a brush coating worktable 11 capable of circumferential rotation; a position sensor is installed on the brush coating worktable 11 to monitor the installation position of the vacuum interrupter.

[0047] Furthermore, in this embodiment, the coating robot 6 features a 6-DOF modular design with programmed control of the coating path, covering 100% of the area to be coated on the arc-extinguishing chamber. It automatically coats each surface of the arc-extinguishing chamber with the primer in a manner similar to manual primer application.

[0048] Furthermore, in this embodiment, the brush head material used by the painting robot 6 is a nano sponge, which is a three-dimensional mesh structure composed of melamine resin foam.

[0049] Furthermore, in this embodiment, the rotation speed of the brushing workbench 11 can be adjusted, thereby adjusting the rotation speed of the arc extinguishing chamber.

[0050] Furthermore, in this embodiment, the product information of each vacuum interrupter is bound by scanning the barcode, and the corresponding vacuum interrupter specifications are automatically matched through the product barcode, and then the corresponding brush head is replaced.

[0051] Furthermore, in this embodiment, the program for the brushing robot 6 can be set so that the brushing robot 6 drives the brush head to perform a squeezing action on the inner wall of the container, actively squeezing out excess liquid and ensuring the uniformity of the coating.

[0052] Furthermore, in this embodiment, the structure of the brushing workbench 11 is the same as that of the plasma cleaning workbench 15 disclosed in this embodiment 3.

[0053] Example 5 This embodiment discloses a production line for pretreatment of vacuum interrupters, including a transport robot 4 capable of circumferential rotation. A loading area, a plasma cleaning area, a brush coating area, and a unloading area are sequentially arranged around the transport robot 4. The transport robot 4 is used to transfer the vacuum interrupters to be treated from the loading area to the plasma cleaning area, brush coating area, and unloading area sequentially. The transport robot 4, the loading area, the plasma cleaning area, the brush coating area, and the unloading area are all connected to a control unit. The unloading area includes an unloading area slide rail 16, on which a worktable is mounted. An unloading tray 9 is placed on the worktable, and the worktable can slide back and forth along the unloading area slide rail 16.

[0054] Furthermore, in this embodiment, two sets of material feeding area slide rails 16 are arranged at intervals, and each set of material feeding area slide rails 16 is equipped with a corresponding worktable.

[0055] Example 6 This embodiment discloses a production line for pretreatment of vacuum interrupters, including a transport robot 4 capable of circumferential rotation; a loading area, a plasma cleaning area, a brush coating area, and a unloading area are arranged sequentially around the transport robot 4; the transport robot 4 is used to transfer the vacuum interrupter to be treated from the loading area to the plasma cleaning area, the brush coating area, and the unloading area in sequence; the transport robot 4, the loading area, the plasma cleaning area, the brush coating area, and the unloading area are all connected to a control unit.

[0056] The control unit is connected to status indicator lights, which are all connected to the transport robot 4, the loading area, the plasma cleaning area, the brushing area, and the unloading area. The status indicator light is used to display the current working status. The status indicator light includes green, yellow and red. When each work area has completed its work, the status indicator light is green. When each work area is working normally, the status indicator light is yellow. When any work area is in an abnormal state, the status indicator light is red.

[0057] Furthermore, in this embodiment, a status indicator light is installed at the power distribution cabinet 8.

[0058] Furthermore, in this embodiment, the feeding tray 29 has the same shape and size as the product, exhibiting good versatility. Arc-extinguishing chambers with significantly different external dimensions can be adapted by replacing auxiliary tooling. This invention also discloses a method for pretreatment of a vacuum interrupter, comprising the following steps: Step 1: The arc extinguishing chamber is pre-installed with the die head clamp manually, and placed in the special tray at the loading station with the stationary end facing upwards; Step 2: Scan the codes of the arc-extinguishing chambers at each hole in sequence, and simultaneously bind them with tray codes; Step 3: The system acquires product information for each hole. Step 4: The handling robot 4 picks up a single arc-extinguishing chamber and places it at the cleaning station; Step 5: Automatically complete the clamping, fixing, rotation, and jet plasma cleaning of the arc-extinguishing chamber; Step 6: After cleaning is completed, the transport robot 4 will transfer the arc-extinguishing chamber from the cleaning station to the primer coating station; Step 7: The arc-extinguishing chamber is automatically clamped, fixed, and rotated, while the collaborative robot automatically applies the primer. Step 8: The handling robot 4 transfers the arc-extinguishing chamber from the primer station to a special pallet at the unloading station; Step 9: After the entire tray is processed, the processed arc-extinguishing chamber is removed manually.

[0059] Furthermore, in this embodiment, a spiral cleaning path is used during plasma cleaning, which has a large coverage angle and adjustable cleaning time.

[0060] Furthermore, in this embodiment, the primer coating process automatically adjusts the distance between the brush head and the product according to the product model to achieve flexible coating; the brush head is actively squeezed against the inner wall of the container to remove excess liquid and prevent liquid from flowing.

[0061] Furthermore, in this embodiment, production efficiency is high, process parameters are precisely controlled, product quality is stable and reliable, and the labor intensity of workers is reduced, making it adaptable to the needs of multi-variety production. By using a robot-plasma cleaning and primer brushing collaborative system, traditional manual alcohol cleaning and manual brushing are completely replaced, solving industry problems such as insufficient interface bonding strength and fluctuations in insulation performance. Furthermore, in this embodiment, the robots used in the ion cleaning zone and the brush coating zone are specifically JAKAZu5 robots or JAKAC5 robots.

[0062] Furthermore, in this embodiment, the handling robot 4 is an ER series industrial robot.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A production line for pretreatment of vacuum interrupters, characterized in that, Includes a transport robot (4), which is capable of circumferential rotation; The material handling robot (4) is arranged in sequence with a loading area, a plasma cleaning area, a brushing area and a unloading area. The transport robot (4) is used to transfer the vacuum interrupter (1) to be processed from the loading area to the plasma cleaning area, the brushing area and the unloading area in sequence; The transport robot (4) is connected to the control unit for the loading area, plasma cleaning area, brushing area and unloading area.

2. The production line for pretreatment of vacuum interrupters according to claim 1, characterized in that, The transport robot (4) is a six-degree-of-freedom robot, and the end effector of the transport robot (4) is equipped with a clamping mechanism.

3. A production line for pretreatment of vacuum interrupters according to claim 1, characterized in that, The feeding area includes a feeding area slide rail (17), a worktable is provided on the feeding area slide rail (17), a feeding tray (2) is placed on the worktable, and the worktable can slide back and forth along the feeding area slide rail (17).

4. A production line for pretreatment of vacuum interrupters according to claim 3, characterized in that, The feeding area slide rails (17) are arranged in two sets at intervals, and each set of feeding area slide rails (17) is equipped with a corresponding worktable.

5. A production line for pretreatment of vacuum interrupters according to claim 1, characterized in that, The plasma cleaning area includes a plasma cleaning robot (5), and a plasma cleaning worktable (15) is placed on one side of the plasma cleaning robot (5). The plasma cleaning worktable (15) is capable of circumferential rotation.

6. A production line for pretreatment of vacuum interrupters according to claim 5, characterized in that, The plasma cleaning workbench (15) is provided with a positioning seat (10), which is used to position the vacuum interrupter to be processed. A position sensor is installed on the plasma cleaning workbench (15) to monitor the installation position of the vacuum interrupter.

7. A production line for pretreatment of vacuum interrupters according to claim 6, characterized in that, The positioning seat (10) includes a positioning platform (12), and several positioning slide rails (13) are distributed circumferentially along the center of the positioning platform (12). The positioning slide rails (13) are provided with grippers (14), and the grippers (14) can slide along the positioning slide rails (13). The vacuum interrupter (1) to be processed is sleeved on the multiple grippers (14).

8. A production line for pretreatment of vacuum interrupters according to claim 1, characterized in that, The painting area includes a painting robot (6) and a painting workbench (11), which is capable of circumferential rotation; A position sensor is installed on the brushing workbench (11) to monitor the installation position of the vacuum interrupter.

9. A production line for pretreatment of vacuum interrupters according to claim 1, characterized in that, The control unit is connected to a status indicator light, which is connected to the transport robot (4), the loading area, the plasma cleaning area, the brushing area and the unloading area. The status indicator light is used to display the current working status. The status indicator light includes green, yellow and red. When each work area has completed its work, the status indicator light is green. When each work area is working normally, the status indicator light is yellow. When any work area is in an abnormal state, the status indicator light is red.

10. A method for pretreatment of a vacuum interrupter, characterized in that, Includes the following steps: Install a die head clamp on each vacuum interrupter (1) to be processed, place the vacuum interrupter (1) with the die head clamp installed in the loading area, and scan the code to bind the product information of each vacuum interrupter; The handling robot (4) grabs the vacuum interrupter (1) in the loading area and moves it to the plasma cleaning area for plasma cleaning; After cleaning, the handling robot (4) grabs the vacuum interrupter (1) to the brushing area for brushing. During brushing, the corresponding brush head is selected according to the product information of each vacuum interrupter. After the coating is completed, the handling robot (4) grabs the vacuum interrupter (1) to the unloading area to complete the pretreatment.

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