A surface automatic cleaning device and method for a pcm power control module

Abstract

The application discloses a kind of surface automatic cleaning device and method for PCM power control module, apply in PCM cleaning equipment technical field, its technical solution main point is: including fixedly arranged base and tray conveying line;PCM power control module positioning is realized by the jacking positioning assembly being fixedly arranged on the tray conveying line, vertical wiping seat along vertical direction is movably connected on the base based on lifting conveying component, wiping cleaning head module along vertical direction is movably arranged on the vertical wiping seat respectively, and the cleaning cloth conveying component for making cleaning cloth cover the cleaning end of wiping cleaning head module is arranged, and the cleaning cloth area that is in contact with PCM power control module surface is continuously updated by intermittent conveying between adjacent wiping actions in preset conveying direction;With technical effect is: realize the full-automatic cleaning of power control module, improve cleaning efficiency while guaranteeing the effect of cleaning.

Description

Technical Field

[0001] This invention relates to the field of PCM cleaning equipment technology, and in particular to an automatic surface cleaning device and method for PCM power control modules. Background Technology

[0002] The Power Control Module (PCM) is a core component of the server cluster power management system, responsible for transforming and distributing the input power to provide a stable and reliable power supply to each computing node in the server cluster. During operation, the internal control chip of the PCM generates a significant amount of heat. To ensure long-term stable operation, thermal paste is typically applied to the surface of the PCM to conduct the heat from the control chip to the heatsink. However, during transportation and assembly, dust, oil, and other contaminants inevitably adhere to the surface of the PCM. If these contaminants are not effectively removed, air gaps will form between the thermal paste and the PCM surface, severely affecting heat transfer efficiency. Therefore, the surface of the PCM must be cleaned before applying the thermal paste.

[0003] Currently, cleaning the surface of PCM power control modules mainly relies on manual labor: operators use cleaning sponges or lint-free cloths soaked in anhydrous alcohol or other cleaning solvents to repeatedly wipe the surface of the power control module to remove dust, oil, and other contaminants. However, manual cleaning is inefficient, making it difficult to meet the needs of large-scale production, and it also increases the cost of manual cleaning, thereby increasing the manufacturing cost of the power control module. In addition, manual cleaning lacks consistency. Furthermore, during manual wiping, it is difficult to precisely control the pressure applied to the surface of the power control module by the operator, which poses a risk of damaging the internal electronic components of the power control module due to improper force. Therefore, it is necessary to design a device that can automatically clean the surface of the power control module to achieve fully automated cleaning, improving cleaning efficiency while ensuring cleaning effectiveness. Summary of the Invention

[0004] The first objective of this invention is to provide an automatic surface cleaning device for PCM power control modules, which has the advantage of achieving fully automatic cleaning of the power control modules, improving cleaning efficiency while ensuring cleaning effectiveness.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an automatic surface cleaning device for a PCM power control module, comprising a fixedly installed base and a material tray conveyor line; a lifting and positioning component for positioning the PCM power control module is fixedly installed on the material tray conveyor line; a vertical wiping seat is movably connected to the base along the vertical direction based on the lifting and conveying component; a wiping cleaning head module is respectively provided on the vertical wiping seat; and a cleaning cloth conveying component is provided for covering the cleaning end of the wiping cleaning head module with a cleaning cloth and intermittently conveying it along a preset conveying direction between adjacent wiping actions to continuously update the area of ​​the cleaning cloth in contact with the surface of the PCM power control module.

[0006] The present invention is further configured such that: the lifting and positioning assembly includes a lifting fixed seat fixedly connected to the material tray conveying line in the horizontal direction and a lifting positioning seat movably connected to the lifting fixed seat in the vertical direction based on a plurality of vertical guide rods; a lifting cylinder for driving the lifting positioning seat to rise and fall is fixedly connected to the lifting fixed seat in the vertical direction; a plurality of positioning pins for realizing material tray positioning are fixedly connected to the lifting positioning seat; and a blocking cylinder arranged in the vertical direction is also fixedly connected to the end of the lifting fixed seat in the conveying direction; and a blocking block for abutting against the side wall of the material tray to block the material tray conveying is fixedly connected to the telescopic end of the blocking cylinder.

[0007] The present invention is further configured such that: the lifting and conveying assembly includes an X-direction conveying screw slide fixedly connected to the base along the X direction and a Y-direction conveying screw slide fixedly connected to the conveying end of the X-direction conveying screw slide along the Y direction; a horizontal conveying seat arranged along the vertical direction is fixedly connected to the sliding end of the Y-direction conveying screw slide; a vertical lifting screw slide arranged along the vertical direction is fixedly connected to the horizontal conveying seat; a horizontal lifting seat is fixedly connected to the sliding end of the vertical lifting screw slide; a vertical rotating rod arranged along the vertical direction is rotatably connected to the horizontal lifting seat based on a rotary motor; and a vertical wiping seat is fixedly connected to the vertical rotating rod.

[0008] The present invention is further configured such that: the wiping cleaning head module includes a movable wiping head slidably connected to the vertical wiping seat along the vertical direction, the movable wiping head is provided with a cleaning liquid inlet for inputting cleaning liquid, and the movable wiping head is provided with a cleaning liquid delivery channel communicating with the cleaning liquid inlet and extending to the wiping end of the movable wiping head, the cleaning liquid inputting the cleaning liquid inlet is delivered to the wiping end of the movable wiping head through the cleaning liquid delivery channel to wet the cleaning cloth in contact with the wiping end.

[0009] The present invention is further configured such that: a horizontal fixed seat is fixedly connected to the vertical wiping seat directly above the movable wiping head; a pressure sensor for detecting the pressure of the movable wiping head against the surface of the PCM power control module is fixedly connected between the movable wiping head and the horizontal fixed seat; and the pressure sensor is electrically connected to the vertical lifting screw slide.

[0010] The present invention is further configured such that: the cleaning cloth conveying assembly includes a cleaning cloth feeding wheel and a cleaning cloth receiving wheel respectively rotatably connected to the vertical wiping seat; the vertical wiping seat is provided with a plurality of rotatably arranged guide wheels along the conveying direction of the cleaning cloth; the vertical wiping seat is fixedly connected with a synchronous drive assembly that is synchronously arranged with the cleaning cloth receiving wheel and is used to drive the conveying of the cleaning cloth; and the vertical wiping seat is fixedly connected with cleaning cloth pressing and fixing assemblies at both ends of the wiping cleaning head module along the conveying direction of the cleaning cloth for fixing the cleaning cloth during the cleaning process.

[0011] The present invention is further configured such that: the synchronous drive assembly includes a drive seat fixedly connected to the vertical wiping seat and a synchronous drive roller rotatably connected to the drive seat along the horizontal direction; the drive seat also has an abutment roller hinged to the abutment plate for pressing the cleaning cloth onto the synchronous drive roller; an abutment bolt abutting the abutment plate is rotatably connected to the drive seat; and the synchronous drive roller and the cleaning cloth receiving wheel achieve synchronous transmission based on a belt drive assembly.

[0012] The present invention is further configured such that: the cleaning cloth pressing and fixing assembly includes a support shaft whose axis is fixedly connected to the vertical wiping seat in a horizontal direction, and a pressing cylinder for pressing the cleaning cloth onto the support shaft is fixedly connected to the vertical wiping seat, and a rubber pressing block is fixedly connected to the pressing end of the pressing cylinder.

[0013] The present invention is further configured such that: the cleaning liquid is acetone or alcohol, a cover is fixedly connected to the base, an exhaust pipe is fixedly connected to the cover, and an exhaust device is connected to the exhaust pipe to discharge the cleaning liquid vapor that evaporates during the cleaning process.

[0014] The second objective of this invention is to provide an automatic surface cleaning method for PCM power control modules, which has the advantage of achieving fully automatic cleaning of the power control modules, improving cleaning efficiency while ensuring cleaning effectiveness.

[0015] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an automatic surface cleaning method for a PCM power control module, comprising an automatic surface cleaning device for a PCM power control module as described in any of the above technical solutions, including: Step 1: The tray containing the PCM power control module is conveyed to the cleaning station along the tray conveyor line. The blocking cylinder drives the blocking block to extend to stop the tray from continuing to be conveyed. The lifting cylinder drives the lifting positioning seat to rise, so that the positioning pin cooperates with the tray to lift and position the tray and the PCM power control module on it. Step 2: The cleaning cloth is conveyed from the cleaning cloth feeding wheel to the cleaning cloth receiving wheel through the cleaning cloth conveying assembly, so that the cleaning cloth passes around the guide wheel and covers the wiping end of the movable wiping head. The cleaning liquid is introduced into the movable wiping head through the cleaning liquid inlet, so that the cleaning liquid reaches the wiping end through the cleaning liquid conveying channel and wets the cleaning cloth in contact with the wiping end. Step 3: The vertical wiping seat is moved by the lifting and conveying assembly, so that the movable wiping head covered with the cleaning cloth moves towards the surface to be cleaned of the PCM power control module and comes into contact with the surface to be cleaned. The wiping pressure of the movable wiping head acting on the surface of the PCM power control module is detected by the pressure sensor, and the vertical lifting screw slide is controlled to adjust the relative position between the movable wiping head and the PCM power control module according to the detected wiping pressure, so that the wiping pressure is kept within the preset pressure range. Step 4: With the movable wiping head in contact with the surface of the PCM power control module, the movable wiping head is controlled by the lifting and conveying assembly to execute a preset wiping trajectory relative to the PCM power control module. The preset wiping trajectory includes one or more of the following: reciprocating wiping motion along the X / Y direction, oblique reciprocating wiping motion located in the XY plane and inclined relative to the X and Y directions, and rotational wiping motion around the vertical axis. By executing the reciprocating wiping motion and the rotational wiping motion individually or in combination, the cleaning cloth soaked in cleaning fluid wipes and cleans the surface of the PCM power control module to be cleaned. Step 5: Between two adjacent wiping actions, the cleaning cloth is released from pressure by the cleaning cloth pressing and fixing component, and the synchronous drive component drives the cleaning cloth to move a preset distance along the preset conveying direction, so that the used cleaning cloth area at the wiping end of the active wiping head moves towards the cleaning cloth receiving wheel, and the unused cleaning cloth area moves to the wiping end of the active wiping head. Then, the cleaning cloth is pressed back on by the cleaning cloth pressing and fixing component, and the next wiping action is performed. Step 6: After cleaning the surface of the PCM power control module, the moving wiping head is disengaged from the PCM power control module by the lifting and conveying assembly. The lifting and positioning assembly descends to release the lifting and positioning of the material tray. The blocking cylinder drives the blocking block to release the obstruction of the material tray, so that the PCM power control module after cleaning is conveyed away from the cleaning station by the material tray conveyor line.

[0016] In summary, the present invention has the following beneficial effects: 1. This invention achieves automatic conveying and positioning of trays containing PCM power control modules by setting up a tray conveyor line and installing a lifting and positioning component on the tray conveyor line for positioning PCM power control modules. At the same time, the lifting and conveying component drives the wiping and cleaning head module to move in coordination through an X-axis conveying screw slide, a Y-axis conveying screw slide, a vertical lifting screw slide, and a rotary motor. This allows the movable wiping head to wipe the surface of the PCM power control module according to one or more of the following: a reciprocating trajectory along the X / Y direction, an oblique reciprocating trajectory inclined relative to the X / Y direction, and a rotational trajectory around the vertical axis. This replaces manual repetitive wiping and achieves automated, multi-track cleaning of the PCM power control module surface, which is beneficial for improving cleaning efficiency while ensuring cleaning effect. 2. This invention features a cleaning fluid inlet and a cleaning fluid delivery channel extending to the wiping end within the movable wiping head. This allows the cleaning fluid to be directly delivered to the wiping end and wet the cleaning cloth in contact with it, ensuring the cloth remains moist during wiping and guaranteeing effective cleaning. Simultaneously, a pressure sensor positioned between the movable wiping head and the horizontal fixed base continuously monitors the wiping pressure exerted by the movable wiping head on the surface of the PCM power control module. Based on the detected wiping pressure, the vertical lifting screw slide is adjusted to maintain the wiping pressure within a preset range. This ensures effective cleaning while reducing the risk of damage to internal electronic components of the PCM power control module due to excessive wiping pressure, thus improving the stability and reliability of the automatic cleaning process. 3. The cleaning cloth conveying assembly of the present invention drives the cleaning cloth to be conveyed along a preset direction through a synchronous drive assembly, and a cleaning cloth pressing and fixing assembly is set on both sides of the movable wiping head, so that the cleaning cloth can be stably pressed during a single wiping process, and the pressing is released between two adjacent wiping actions and conveyed to the receiving direction a preset distance, thereby removing the cleaning cloth area that has participated in wiping from the wiping end and conveying the unused cleaning cloth area to the wiping end, realizing the continuous renewal of the working area of ​​the cleaning cloth, reducing the problem of cleaning cloth areas with attached contaminants repeatedly participating in subsequent wiping and affecting the cleaning effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a schematic diagram of the lifting and positioning component in this embodiment; Figure 3 This is a schematic diagram of the lifting and conveying assembly in this embodiment; Figure 4 yes Figure 3 Enlarged schematic diagram of part A; Figure 5 This is a schematic diagram of the belt drive assembly in this embodiment; Figure 6 This is a cross-sectional view of the wiping and cleaning head module in this embodiment.

[0018] Reference numerals: 1. Base; 2. Material tray conveyor line; 3. Lifting and positioning assembly; 31. Lifting fixed seat; 32. Vertical guide rod; 33. Lifting and positioning seat; 34. Lifting cylinder; 35. Positioning pin; 36. Blocking cylinder; 37. Blocking block; 4. Lifting and conveying assembly; 41. X-axis conveying screw slide; 42. Y-axis conveying screw slide; 43. Horizontal conveying seat; 44. Vertical lifting screw slide; 45. Horizontal lifting seat; 46. Rotary motor; 47. Vertical rotating rod; 5. Vertical wiping seat; 6. Wiping and cleaning head module; 61. Movable wiping head; 62. Cleaning fluid inlet; 63. Cleaning fluid delivery channel; 64. Horizontal fixed seat; 65. Pressure sensor; 7. Cleaning cloth delivery assembly; 71. Cleaning cloth feeding wheel; 72. Cleaning cloth receiving wheel; 73. Guide wheel; 74. Synchronous drive assembly; 741. Drive seat; 742. Synchronous drive roller; 743. Pressure plate; 744. Pressure roller; 745. Abutment bolt; 746. Belt drive assembly; 75. Cleaning cloth pressing and fixing assembly; 751. Support shaft; 752. Pressing cylinder; 753. Rubber pressure block; 8. Cover; 9. Exhaust pipe. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example 1: refer to Figure 1 An automatic surface cleaning device for PCM power control modules includes a fixed base 1 and a tray conveyor line 2. A lifting and positioning component 3 for positioning the PCM power control modules is fixed on the tray conveyor line 2. The PCM power control modules are positioned and fixed on the tray. The tray conveyor line 2 drives the tray carrying the PCM power control modules to be conveyed. A vertical wiping seat 5 is movably connected to the base 1 along the vertical direction based on the lifting and conveying component 4. The vertical wiping seat 5 is provided with a wiping and cleaning head module 6 that is movably arranged along the vertical direction, and a cleaning cloth for covering the module. The cleaning cloth conveying assembly 7 continuously updates the cleaning cloth area in contact with the PCM power control module surface by intermittently conveying the cleaning cloth from the cleaning head module 6 to the cleaning end of the cleaning head module 6 between adjacent wiping actions along a preset conveying direction. During cleaning of the PCM power control module surface, the lifting conveying assembly 4 drives the cleaning head module 6 to achieve all-around cleaning of the PCM power control module surface, and the cleaning cloth conveying assembly 7 keeps the cleaning cloth updated to ensure cleaning effectiveness. A downward vision detection camera is also provided on the base 1 to detect the cleanliness of the cleaning cloth located at the cleaning end of the cleaning head module 6. In this embodiment, non-woven fabric is used for the cleaning cloth, but other types of cleaning cloth can also be used.

[0021] Specifically, the lifting and positioning assembly 3 includes a lifting fixing seat 31 fixedly connected horizontally to the material tray conveyor line 2, and a lifting positioning seat 33 movably connected vertically to the lifting fixing seat 31 based on several vertical guide rods 32. A lifting cylinder 34 for driving the lifting positioning seat 33 to rise and fall is fixedly connected vertically to the lifting fixing seat 31. Several positioning pins 35 for positioning the material tray are fixedly connected to the lifting positioning seat 33. At the end of the lifting fixing seat 31 along the conveying direction, a... A blocking cylinder 36 is connected along the vertical direction. A blocking block 37 is fixedly connected to the telescopic end of the blocking cylinder 36 to abut against the side wall of the tray to block the tray from being conveyed. When the tray carrying the PCM power control module is conveyed to the cleaning station through the tray conveyor line 2, the blocking cylinder 36 first drives the blocking block 37 to rise to stop the tray from being conveyed. Then, the lifting cylinder 34 drives the lifting positioning seat 33 to rise to lift the tray. When lifted, the positioning pin 35 cooperates with the positioning hole on the tray to achieve precise positioning of the tray.

[0022] Specifically, the lifting and conveying assembly 4 includes an X-direction conveying screw slide 41 fixedly connected to the base 1 along the X direction and a Y-direction conveying screw slide 42 fixedly connected to the conveying end of the X-direction conveying screw slide 41 along the Y direction. A horizontal conveying seat 43 arranged in the vertical direction is fixedly connected to the sliding end of the Y-direction conveying screw slide 42. A vertical lifting screw slide 44 arranged in the vertical direction is fixedly connected to the horizontal conveying seat 43. A horizontal lifting seat 45 is fixedly connected to the sliding end of the vertical lifting screw slide 44. A vertical rotating rod 47 arranged in the vertical direction is rotatably connected to the horizontal lifting seat 45 based on a rotary motor 46. The wiping seat 5 is fixedly connected to the vertical rotating rod 47. The lifting and conveying assembly 4 drives the wiping and cleaning head module 6 to move in coordination through the X-direction conveying screw slide 41, the Y-direction conveying screw slide 42, the vertical lifting screw slide 44, and the rotary motor 46. This allows the movable wiping head 61 to wipe the surface of the PCM power control module according to one or more of the following: a reciprocating trajectory along the X / Y direction, an oblique reciprocating trajectory inclined relative to the X / Y direction, and a rotational trajectory around the vertical axis. This replaces manual repetitive wiping and realizes automated, multi-track cleaning of the PCM power control module surface, which is beneficial to improving cleaning efficiency while ensuring cleaning effect.

[0023] Specifically, the wiping cleaning head module 6 includes a movable wiping head 61 that is slidably connected to a vertical wiping base 5 along the vertical direction. The movable wiping head 61 has a cleaning fluid inlet 62 for inputting cleaning fluid. Inside the movable wiping head 61, there is a cleaning fluid delivery channel 63 that communicates with the cleaning fluid inlet 62 and extends to the wiping end of the movable wiping head 61. The cleaning fluid input through the cleaning fluid inlet 62 is delivered to the wiping end of the movable wiping head 61 via the cleaning fluid delivery channel 63 to wet the cleaning cloth in contact with the wiping end, ensuring that the cleaning cloth remains moist during wiping and guaranteeing the cleaning effect. A horizontal fixing base 64 is fixedly connected to the vertical wiping base 5 directly above the movable wiping head 61. A pressure sensor 65 is fixedly connected between the base 1 and the horizontal fixed base 64 to detect the pressure of the movable wiping head 61 against the surface of the PCM power control module. The pressure sensor 65 is electrically connected to the vertical lifting screw slide 44. By using the pressure sensor 65 located between the movable wiping head 61 and the horizontal fixed base 64 to detect the wiping pressure exerted by the movable wiping head 61 on the surface of the PCM power control module in real time, the vertical lifting screw slide 44 is adjusted according to the detected wiping pressure to keep the wiping pressure within a preset pressure range. This ensures cleaning while reducing the risk of damage to the internal electronic components of the PCM power control module due to excessive wiping pressure, thus improving the stability and reliability of the automatic cleaning process. In this embodiment, acetone or alcohol is used as the cleaning fluid, and a cover 8 is fixedly connected to the base 1.

[0024] Specifically, the cleaning cloth conveying assembly 7 includes a cleaning cloth feeding wheel 71 and a cleaning cloth receiving wheel 72 rotatably connected to the vertical wiping seat 5. Several guide wheels 73 are rotatably arranged on the vertical wiping seat 5 along the conveying direction of the cleaning cloth. A synchronous drive assembly 74, synchronously arranged with the cleaning cloth receiving wheel 72, is fixedly connected to the vertical wiping seat 5 for driving the cleaning cloth conveying. Cleaning cloth pressing and fixing assemblies 75, used to fix the cleaning cloth during the cleaning process, are fixedly connected to both ends of the vertical wiping seat 5 along the conveying direction of the cleaning head module 6. Component 7 drives the cleaning cloth to be conveyed along a preset direction through the synchronous drive component 74, and cleaning cloth pressing and fixing components 75 are set on both sides of the movable wiping head 61, so that the cleaning cloth can be stably pressed during a single wiping process. Between two adjacent wiping actions, the pressing is released and the cloth is conveyed a preset distance in the receiving direction, thereby removing the cleaning cloth area that has already been wiped from the wiping end and conveying the unused cleaning cloth area to the wiping end. This achieves continuous renewal of the working area of ​​the cleaning cloth and reduces the problem of cleaning cloth areas with attached contaminants repeatedly participating in subsequent wiping, which affects the cleaning effect.

[0025] Specifically, the synchronous drive assembly 74 includes a drive base 741 fixedly connected to the vertical wiping seat 5 and a synchronous drive roller 742 rotatably connected to the drive base 741 along a horizontal axis. A pressure roller 744 for pressing the cleaning cloth against the synchronous drive roller 742 is also hinged to the drive base 741 based on a pressure plate 743. An abutment bolt 745 is threadedly connected to the drive base 741 to abut against the pressure plate 743. By rotating the abutment bolt 745, the extension length of the abutment bolt 745 relative to the drive base 741 can be changed, causing the abutment bolt 745 to push the pressure plate. 743 rotates around its hinged position, driving the pressure roller 744 to move towards the synchronous drive roller 742, thereby pressing the cleaning cloth located between the synchronous drive roller 742 and the pressure roller 744 onto the outer circumferential surface of the synchronous drive roller 742. This maintains stable frictional contact between the cleaning cloth and the synchronous drive roller 742. When the synchronous drive roller 742 rotates, the friction between it and the cleaning cloth pulls the cleaning cloth along a preset conveying direction. Simultaneously, by adjusting the extension of the abutment bolt 745, the pressure applied by the pressure roller 744 to the cleaning cloth can be adjusted to ensure reliable conveying of the cleaning cloth. While conveying the cleaning cloth, it reduces slippage caused by insufficient clamping force and increases the conveying resistance caused by excessive clamping force. The synchronous drive roller 742 and the cleaning cloth receiving wheel 72 achieve synchronous transmission based on the belt drive assembly 746. When the synchronous drive roller 742 rotates and pulls the cleaning cloth towards the cleaning cloth receiving wheel 72, the cleaning cloth receiving wheel 72 rotates synchronously, winding and collecting the used cleaning cloth. The synchronous drive roller 742 actively pulls the cleaning cloth, and the synchronous rotation of the cleaning cloth receiving wheel 72 and the synchronous drive roller 742 ensures the conveying action of the cleaning cloth. In coordination with the winding action, the cleaning cloth can stably pass along the conveying path, sequentially passing the guide wheel 73, the wiping end of the movable wiping head 61, and the synchronous drive assembly 74 before being wound onto the cleaning cloth take-up wheel 72, ensuring the stability of the cleaning process. The belt drive assembly includes pulleys fixedly connected to the shafts of the synchronous drive roller 742 and the cleaning cloth take-up wheel 72, and a transmission belt tensioned between the two pulleys, so that the synchronous drive roller 742 and the cleaning cloth take-up wheel 72 can rotate synchronously. A drive motor for driving the belt drive assembly is fixedly connected to the vertical wiping seat 5.

[0026] Specifically, the cleaning cloth pressing and fixing assembly 75 includes a support shaft 751 whose axis is fixedly connected to the vertical wiping seat 5 along the horizontal direction. A pressing cylinder 752 for pressing the cleaning cloth onto the support shaft 751 is fixedly connected to the vertical wiping seat 5. A rubber pressing block 753 is fixedly connected to the pressing end of the pressing cylinder 752. The pressing cylinder 752 drives the rubber pressing block 753 to extend, thereby pressing and fixing both ends of the cleaning cloth onto the support shaft 751. This ensures that the cleaning cloth will not slide relative to the wiping end of the movable wiping head 61 during the cleaning process, thus ensuring the cleaning effect.

[0027] Specifically, an exhaust pipe 9 is fixedly connected to the cover 8. The exhaust pipe 9 is connected to an external exhaust device to promptly discharge the volatile cleaning liquid vapors generated when cleaning with acetone or alcohol, thereby further improving the working environment of the automatic cleaning process and avoiding damage to the health of the operators.

[0028] Example 2: An automatic surface cleaning method for a PCM power control module, using an automatic surface cleaning device for a PCM power control module as shown in Example 1, includes: Step 1: The tray loaded with the PCM power control module is conveyed to the cleaning station along the tray conveyor line 2. The blocking cylinder 36 drives the blocking block 37 to extend to stop the tray from continuing to be conveyed. The lifting cylinder 34 drives the lifting positioning seat 33 to rise, so that the positioning pin 35 cooperates with the tray to lift and position the tray and the PCM power control module on it. Step 2: The cleaning cloth is conveyed from the cleaning cloth feeding wheel 71 to the cleaning cloth receiving wheel 72 by the cleaning cloth conveying assembly 7, so that the cleaning cloth passes around the guide wheel 73 and covers the wiping end of the movable wiping head 61. The cleaning liquid is introduced into the movable wiping head 61 through the cleaning liquid inlet 62, so that the cleaning liquid reaches the wiping end through the cleaning liquid conveying channel 63 and wets the cleaning cloth in contact with the wiping end. Step 3: The vertical wiping seat 5 is moved by the lifting and conveying assembly 4, so that the movable wiping head 61 covered with the cleaning cloth moves towards the surface to be cleaned of the PCM power control module and comes into contact with the surface to be cleaned. The pressure sensor 65 detects the wiping pressure of the movable wiping head 61 on the surface of the PCM power control module, and controls the vertical lifting screw slide 44 to adjust the relative position between the movable wiping head 61 and the PCM power control module according to the detected wiping pressure, so that the wiping pressure is kept within the preset pressure range. Step 4: With the movable wiping head 61 in contact with the surface of the PCM power control module, the movable wiping head 61 is controlled by the lifting and conveying assembly 4 to execute a preset wiping trajectory relative to the PCM power control module. The preset wiping trajectory includes one or more of the following: reciprocating wiping motion along the X / Y direction, oblique reciprocating wiping motion located in the XY plane and inclined relative to the X and Y directions, and rotational wiping motion around the vertical axis. By executing the reciprocating wiping motion and the rotational wiping motion individually or in combination, the cleaning cloth soaked in cleaning fluid wipes and cleans the surface of the PCM power control module to be cleaned. Step 5: Between two adjacent wiping actions, the cleaning cloth is released from pressure by the cleaning cloth pressing and fixing component 75, and the synchronous drive component 74 drives the cleaning cloth to move a preset distance along the preset conveying direction, so that the used cleaning cloth area at the wiping end of the movable wiping head 61 moves towards the cleaning cloth receiving wheel 72, and the unused cleaning cloth area moves to the wiping end of the movable wiping head 61. Then, the cleaning cloth is pressed back by the cleaning cloth pressing and fixing component 75, and the next wiping action is performed. Step 6: After cleaning the surface of the PCM power control module, the lifting and conveying assembly 4 drives the movable wiping head 61 to detach from the PCM power control module. The lifting and positioning assembly 3 descends to release the lifting and positioning of the material tray. The blocking cylinder 36 drives the blocking block 37 to release the obstruction of the material tray, so that the PCM power control module after cleaning is conveyed away from the cleaning station by the material tray conveyor line 2.

[0029] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make inventive modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic surface cleaning device for a PCM power control module, comprising a fixedly mounted base (1) and a tray conveyor line (2); characterized in that, The material tray conveyor line (2) is fixedly provided with a lifting and positioning component (3) for positioning the PCM power control module. The base (1) is movably connected to a vertical wiping seat (5) along the vertical direction based on the lifting conveyor component (4). The vertical wiping seat (5) is provided with a wiping cleaning head module (6) that is movably arranged along the vertical direction, and a cleaning cloth conveying component (7) for covering the cleaning end of the wiping cleaning head module (6) with a cleaning cloth and intermittently conveying along a preset conveying direction between adjacent wiping actions to continuously update the cleaning cloth area in contact with the surface of the PCM power control module.

2. The automatic surface cleaning device for a PCM power control module according to claim 1, characterized in that, The lifting and positioning assembly (3) includes a lifting fixed seat (31) fixedly connected to the material tray conveying line (2) in the horizontal direction and a lifting positioning seat (33) movably connected to the lifting fixed seat (31) in the vertical direction based on a plurality of vertical guide rods (32). A lifting cylinder (34) for driving the lifting positioning seat (33) to rise and fall is fixedly connected to the lifting fixed seat (31) in the vertical direction. A plurality of positioning pins (35) for realizing material tray positioning are fixedly connected to the lifting positioning seat (33). A blocking cylinder (36) arranged in the vertical direction is also fixedly connected to the end of the lifting fixed seat (31) in the conveying direction. A blocking block (37) for abutting against the side wall of the material tray to block the material tray conveying is fixedly connected to the telescopic end of the blocking cylinder (36).

3. The automatic surface cleaning device for a PCM power control module according to claim 1, characterized in that, The lifting and conveying assembly (4) includes an X-direction conveying screw slide (41) fixedly connected to the base (1) along the X direction and a Y-direction conveying screw slide (42) fixedly connected to the conveying end of the X-direction conveying screw slide (41) along the Y direction. The sliding end of the Y-direction conveying screw slide (42) is fixedly connected to a horizontal conveying seat (43) arranged along the vertical direction. A vertical lifting screw slide (44) arranged along the vertical direction is fixedly connected to the horizontal conveying seat (43). A horizontal lifting seat (45) is fixedly connected to the sliding end of the vertical lifting screw slide (44). A vertical rotating rod (47) arranged along the vertical direction is rotatably connected to the horizontal lifting seat (45) based on a rotary motor (46). The vertical wiping seat (5) is fixedly connected to the vertical rotating rod (47).

4. The automatic surface cleaning device for a PCM power control module according to claim 3, characterized in that, The wiping cleaning head module (6) includes a movable wiping head (61) that is slidably connected to the vertical wiping seat (5) along the vertical direction. The movable wiping head (61) is provided with a cleaning liquid inlet (62) for inputting cleaning liquid. The movable wiping head (61) is provided with a cleaning liquid delivery channel (63) that communicates with the cleaning liquid inlet (62) and extends to the wiping end of the movable wiping head (61). The cleaning liquid input into the cleaning liquid inlet (62) is delivered to the wiping end of the movable wiping head (61) through the cleaning liquid delivery channel (63) to wet the cleaning cloth in contact with the wiping end.

5. The automatic surface cleaning device for a PCM power control module according to claim 4, characterized in that, The vertical wiping seat (5) is fixedly connected to a horizontal fixing seat (64) directly above the movable wiping head (61). A pressure sensor (65) for detecting the pressure of the movable wiping head (61) against the surface of the PCM power control module is fixedly connected between the movable wiping head (61) and the horizontal fixing seat (64). The pressure sensor (65) is electrically connected to the vertical lifting screw slide (44).

6. The automatic surface cleaning device for a PCM power control module according to claim 1, characterized in that, The cleaning cloth conveying assembly (7) includes a cleaning cloth feeding wheel (71) and a cleaning cloth receiving wheel (72) respectively rotatably connected to the vertical wiping seat (5). The vertical wiping seat (5) is provided with a plurality of rotatably arranged guide wheels (73) along the conveying direction of the cleaning cloth. The vertical wiping seat (5) is fixedly connected with a synchronous drive assembly (74) that is synchronously arranged with the cleaning cloth receiving wheel (72) for driving the conveying of the cleaning cloth. The vertical wiping seat (5) is fixedly connected to both ends of the wiping cleaning head module (6) along the conveying direction of the cleaning cloth with cleaning cloth pressing and fixing assemblies (75) for fixing the cleaning cloth during the cleaning process.

7. The automatic surface cleaning device for a PCM power control module according to claim 6, characterized in that, The synchronous drive assembly (74) includes a drive seat (741) fixedly connected to the vertical wiping seat (5) and a synchronous drive roller (742) rotatably connected to the drive seat (741) along the horizontal axis. The drive seat (741) is also hinged to a pressure roller (744) for pressing the cleaning cloth onto the synchronous drive roller (742) based on a pressure plate (743). An abutment bolt (745) abutting against the pressure plate (743) is rotatably connected to the drive seat (741). The synchronous drive roller (742) and the cleaning cloth receiving wheel (72) achieve synchronous transmission based on a belt drive assembly (746).

8. The automatic surface cleaning device for a PCM power control module according to claim 7, characterized in that, The cleaning cloth pressing and fixing assembly (75) includes a support shaft (751) whose axis is fixedly connected to the vertical wiping seat (5) along the horizontal direction. A pressing cylinder (752) for pressing the cleaning cloth onto the support shaft (751) is fixedly connected to the vertical wiping seat (5). A rubber pressing block (753) is fixedly connected to the pressing end of the pressing cylinder (752).

9. The automatic surface cleaning device for a PCM power control module according to claim 4, characterized in that, The cleaning solution uses acetone or alcohol. A cover (8) is fixedly connected to the base (1), and an exhaust pipe (9) is fixedly connected to the cover (8). The exhaust pipe (9) is connected to an external exhaust device to discharge the cleaning solution vapor that evaporates during the cleaning process.

10. An automatic surface cleaning method for a PCM power control module, comprising an automatic surface cleaning device for a PCM power control module as described in any one of claims 1-9; characterized in that, include: Step 1: The tray loaded with the PCM power control module is conveyed to the cleaning station along the tray conveyor line (2). The blocking cylinder (36) drives the blocking block (37) to extend to block the tray from continuing to be conveyed. The lifting cylinder (34) drives the lifting positioning seat (33) to rise, so that the positioning pin (35) cooperates with the tray to lift and position the tray and the PCM power control module on it. Step 2: The cleaning cloth is conveyed from the cleaning cloth feeding wheel (71) to the cleaning cloth receiving wheel (72) by the cleaning cloth conveying assembly (7), so that the cleaning cloth passes around the guide wheel (73) and covers the wiping end of the movable wiping head (61). The cleaning liquid is introduced into the movable wiping head (61) through the cleaning liquid inlet (62), so that the cleaning liquid reaches the wiping end through the cleaning liquid conveying channel (63) and wets the cleaning cloth in contact with the wiping end. Step 3: The vertical wiping seat (5) is moved by the lifting and conveying assembly (4), so that the movable wiping head (61) covered with the cleaning cloth moves toward the surface to be cleaned of the PCM power control module and comes into contact with the surface to be cleaned. The wiping pressure of the movable wiping head (61) acting on the surface of the PCM power control module is detected by the pressure sensor (65), and the vertical lifting screw slide (44) is controlled to adjust the relative position between the movable wiping head (61) and the PCM power control module according to the detected wiping pressure, so that the wiping pressure is kept within the preset pressure range. Step 4: With the movable wiping head (61) in contact with the surface of the PCM power control module, the movable wiping head (61) is controlled by the lifting and conveying assembly (4) to execute a preset wiping trajectory relative to the PCM power control module. The preset wiping trajectory includes one or more of the following: reciprocating wiping motion along the X / Y direction, oblique reciprocating wiping motion located in the XY plane and inclined relative to the X and Y directions, and rotational wiping motion around the vertical axis. By executing the reciprocating wiping motion and the rotational wiping motion individually or in combination, the cleaning cloth soaked in cleaning liquid wipes and cleans the surface of the PCM power control module to be cleaned. Step 5: Between two adjacent wiping actions, the cleaning cloth is released from pressure by the cleaning cloth pressing and fixing component (75), and the synchronous drive component (74) drives the cleaning cloth to move a preset distance along the preset conveying direction, so that the used cleaning cloth area at the wiping end of the active wiping head (61) moves towards the cleaning cloth receiving wheel (72), and the unused cleaning cloth area moves to the wiping end of the active wiping head (61). Then, the cleaning cloth is pressed again by the cleaning cloth pressing and fixing component (75), and the next wiping action is performed. Step 6: After cleaning the surface of the PCM power control module, the moving wiping head (61) is driven away from the PCM power control module by the lifting and conveying assembly (4). The lifting and positioning assembly (3) descends to release the lifting and positioning of the material tray. The blocking cylinder (36) drives the blocking block (37) to release the blocking of the material tray, so that the PCM power control module after cleaning is conveyed away from the cleaning station by the material tray conveyor line (2).

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