A carriage polishing device for production of an electric four-wheeled vehicle

Abstract

The application discloses a carriage polishing device for electric four-wheel vehicle production, which comprises a fixing disc, a first rotating rod, a second rotating rod, a polishing assembly and a fixing frame, a fixing shell is fixedly installed on one side of the fixing disc, the fixing frame is connected with the fixing shell, an axle sleeve is arranged on the middle of the other side of the fixing disc, the first rotating rod and the second rotating rod are hinged on the axle sleeve, and a locking piece for locking the first rotating rod and the second rotating rod is further arranged on the fixing disc. Through the arrangement of the abrasive belt, the first rotating rod and the second rotating rod, the flat surface of the carriage can be polished, the arc surface of the carriage and the corners of the carriage can also be efficiently polished, and through the included angle between the first rotating rod and the second rotating rod, the length of the abrasive belt between the first rotating rod and the second rotating rod can be adjusted, so that the use scene of the device is improved, and the polishing efficiency and the polishing quality of the device on the carriage are ensured.

Description

Technical Field

[0001] This invention belongs to the field of polishing technology, and specifically relates to a polishing device for the carriage of an electric four-wheeled vehicle. Background Technology

[0002] The tricycle consists of two parts: a front and a rear. The front part has a steerable wheel, handlebars, a bell, brakes, pedals, and a seat. The rear part is mainly the cargo box, a semi-circular wooden structure for seating or storage. It is versatile, maneuverable, easy to maintain, and inexpensive. However, during the manufacturing process, the cargo box needs to be sanded. Currently, this sanding is done manually according to different requirements, which is inefficient and wastes a lot of manpower.

[0003] A search revealed that Chinese Patent Application No. 202323052093.6 discloses a grinding device for the production of three-wheeled vehicle bodies, including a workbench. A vehicle body is movably connected to the upper surface of the workbench, and a fixing block is fixedly connected to the side surface of the workbench. A first sliding groove is provided on the upper surface of the fixing block, and a first motor is fixedly connected inside the fixing block. A first lead screw is fixedly connected to the output end of the first motor. This invention utilizes a first motor, a second motor, and an electric push rod. The first motor drives the first lead screw to rotate, causing the first sliding block and the first adjusting block to move the grinding assembly left and right. The second motor drives the second lead screw to rotate, causing the second sliding block and the second adjusting block to move the grinding assembly up and down. The electric push rod then pushes the third sliding block to move back and forth. This allows the grinding assembly to grind the carriage left, right, front, back, up, and down according to different needs, improving the overall grinding efficiency. Although the above device can grind the carriage, because the grinding assembly is a linear structure, when grinding the curved parts or edges of the carriage surface, the angle of the grinding assembly needs to be adjusted multiple times, reducing the grinding efficiency and quality of the grinding assembly on the curved surfaces and edges of the carriage. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a grinding device for the carriage of an electric four-wheeled vehicle. This device, through the arrangement of a grinding belt, a first rotating rod, and a second rotating rod, can not only grind the flat surface of the carriage, but also efficiently grind the curved surface and the edges of the carriage. Furthermore, by adjusting the angle between the first rotating rod and the second rotating rod, the length of the grinding belt between the first rotating rod and the second rotating rod can be adjusted, thus expanding the application scenarios of the device and ensuring the grinding efficiency and quality of the carriage.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A grinding device for the carriage of an electric four-wheeled vehicle includes a fixed plate, a first rotating rod, a second rotating rod, a grinding assembly, and a fixed frame. A fixed shell is fixedly installed on one side of the fixed plate, and the fixed frame is connected to the fixed shell. A bushing is provided on the middle of the other side of the fixed plate. The first rotating rod and the second rotating rod are located on one side of the fixed plate and are hinged to the bushing. The grinding assembly is installed on the fixed plate, the first rotating rod, and the second rotating rod.

[0007] The polishing assembly includes a drive motor, an adjusting component, a first rotating roller, a second rotating roller, a third rotating roller, and a sanding belt. The drive motor is located on one side of the fixed disk and inside the fixed housing. The output shaft of the drive motor passes through the fixed disk and the bushing, extending to the other side of the fixed disk. The third rotating roller is located on the output shaft of the drive motor. The first rotating roller is located at one end of the first rotating rod, and the second rotating roller is located at the other end of the second rotating rod. The drive motor drives the third rotating roller to rotate. The third rotating roller drives the first and second rotating rollers to rotate through the sanding belt. The adjusting component is located on the fixed frame and is used to adjust the angle between the second rotating rod and the second rotating rod.

[0008] The fixed plate is also equipped with a locking device for locking the first rotating rod and the second rotating rod.

[0009] Preferably, the polishing assembly further includes a first auxiliary roller and a second auxiliary roller. The first auxiliary roller is disposed at the other end of the first rotating rod, and the second auxiliary roller is disposed at the other end of the second rotating rod. Both the first and second auxiliary rollers cooperate with the abrasive belt. The arrangement of the first and second auxiliary rollers facilitates cooperation with the abrasive belt, ensures the wrap angle between the abrasive belt and the third rotating roller, and prevents relative sliding between the third rotating roller and the abrasive belt.

[0010] Preferably, the fixing frame includes a handle, uprights symmetrically arranged on both sides of the center line of the handle, and a connecting rod at the bottom of the uprights. The connecting rod is fixedly installed on the fixing shell. The handle is designed to facilitate the worker's grip and application of pressure, ensuring that the abrasive belt is in close contact with the carriage, thus ensuring the abrasive belt's grinding efficiency and grinding quality on the carriage.

[0011] Preferably, the adjusting component includes a lifting rod, a pulling rod, and a connecting frame. The two ends of the lifting rod are slidably engaged with uprights located on both sides of the center line of the handle. The pulling rods are symmetrically arranged on both sides of the center line of the lifting rod. Two connecting frames are provided, each located at the other end of the first rotating rod and the second rotating rod. The two ends of the pulling rod are connected to the connecting frame and the lifting rod, respectively. The adjusting component ensures that the abrasive belt can work normally during the rotation of the first rotating rod and the second rotating rod. Pulling the lifting rod causes the pulling rod to move, which in turn causes the connecting frame to rotate around the fixed plate. The rotation of the connecting frame causes the first rotating rod and the second rotating rod to rotate, thereby achieving the purpose of adjusting the angle between the first rotating rod and the second rotating rod.

[0012] Preferably, sliders are fixedly installed at both ends of the lifting rod, and sliding grooves are opened on the sliders. The sliding grooves slide in conjunction with the upright. The sliding grooves can ensure that the lifting rod slides along the upright, and also prevent the lifting rod from shaking during movement, thus ensuring the normal operation of the lifting rod.

[0013] Preferably, the connecting frame includes a support rod, a fixing block, and a side plate. The support rod is fixedly installed on the first rotating rod or the second rotating rod. The fixing block and the side plate are respectively disposed on both sides of the fixed plate, and the fixing block and the side plate are slidably engaged with the side wall of the fixed plate. The pulling rod is rotatably connected to the support rod. The connecting frame facilitates the connection between the pulling rod and the first rotating rod or the second rotating rod. The fixing block and the side plate disposed on both sides of the fixed plate can limit the position of the support rod, prevent the support rod from shaking during rotation, and ensure the normal rotation of the first rotating rod and the second rotating rod.

[0014] Preferably, an adjustment mechanism is also provided on the first rotating rod. The adjustment mechanism includes a guide rod, a first spring, a sliding plate, and a moving block. An adjustment hole is opened on the first rotating rod. The two ends of the guide rod are respectively fixedly installed on the two inner walls of the adjustment hole. The moving block is disposed in the adjustment hole and is slidably connected to the guide rod. The first spring is sleeved on the guide rod. The sliding plate is fixedly installed on the moving block. When the included angle between the first rotating rod and the second rotating rod increases, the distance between the two ends of the first rotating rod and the second rotating rod will gradually increase. Since the length of the abrasive belt remains unchanged, the sliding plate will move along the adjustment hole towards the side closer to the fixed plate under the action of the abrasive belt. The movement of the sliding plate along the strip hole towards the side closer to the fixed plate will drive the first rotating roller to move towards the side closer to the fixed plate, thereby ensuring that the abrasive belt can work normally.

[0015] Preferably, a groove is formed at the bottom of the sliding plate, and the groove is slidably engaged with the first rotating rod. The first rotating roller is rotatably mounted on the sliding plate. The groove and the first rotating rod can guide the sliding plate on the one hand, and limit the sliding plate on the other hand, preventing the sliding plate from shaking during movement and ensuring the normal operation of the first rotating roller.

[0016] Preferably, the locking component includes a limiting mechanism, a handle, a rotating shaft, a gear, a first rack, and a second rack. A first annular groove, a second annular groove, and a mounting groove are formed on one side of the fixed plate. The rotating shaft is rotatably mounted in the middle of the mounting groove, and the gear is fixedly mounted on the rotating shaft. The handle is located on the other side of the fixed plate and is also fixedly mounted on the rotating shaft. The first and second racks have an arc-shaped structure and are slidably disposed within the first and second annular grooves, respectively, and both the first and second racks mesh with the gear. Limit blocks are provided on both the first and second racks. The limiting mechanism is mounted on the fixed block and cooperates with the limiting block. The locking component can lock the first rotating rod and the second rotating rod, preventing them from rotating during the grinding of the carriage. The rotating handle drives the rotating shaft to rotate, which in turn drives the gears to rotate. The gears mesh with the first rack and the second rack respectively. As the first rack and the second rack rotate, they drive the limiting block to move until the limiting block cooperates with the limiting mechanism, thereby locking the first rotating rod and the second rotating rod and ensuring the stability and safety of the device during operation.

[0017] Preferably, the limiting mechanism includes a fixed rod, a second spring, a limiting plate, and a pushing plate. A fixing groove is formed on the fixed block, and a through hole is formed on the supporting rod. The through hole communicates with the fixing groove. Both ends of the fixed rod are fixedly installed at both ends of the through hole. The limiting plate is slidably disposed in the fixing groove. The pushing plate is fixedly installed on one side of the limiting plate and disposed in the through hole, and the pushing plate slides in cooperation with the fixed rod. The second spring is sleeved on the fixed rod. A limiting groove is formed on the limiting plate, and the limiting groove cooperates with the limiting block. The limiting mechanism is designed to cooperate with the limiting block, ensuring that the locking component can lock the first rotating rod and the second rotating rod, preventing rotation of the first and second rotating rods during operation, and ensuring the grinding quality and efficiency of the vehicle body.

[0018] Preferably, both the first rotating rod and the second rotating rod have clearance holes. The clearance hole on the first rotating rod cooperates with the first rack, and the clearance hole on the second rotating rod cooperates with the second rack. The clearance holes ensure the normal operation of the first rack and the second rack, prevent interference with the limit block during the adjustment of the angle between the first rotating rod and the second rotating rod, and ensure the normal operation of the first rotating rod and the second rotating rod.

[0019] The beneficial effects of this invention are:

[0020] 1) This device, through the arrangement of the abrasive belt, the first rotating rod, and the second rotating rod, can not only polish the flat surfaces of the carriage, but also efficiently polish the curved surfaces and edges of the carriage. Furthermore, by adjusting the angle between the first and second rotating rods, the length of the abrasive belt between them can be adjusted, thus expanding the application scenarios of the device and ensuring the efficiency and quality of the grinding of the carriage.

[0021] 2) The handle of this device is designed to facilitate the grip and application of pressure by the operator, ensuring close contact between the abrasive belt and the carriage, and guaranteeing the abrasive belt's grinding efficiency and grinding quality on the carriage.

[0022] 3) The adjustment mechanism of this device ensures that the abrasive belt can work normally during the rotation of the first rotating rod and the second rotating rod. Pulling the lifting rod drives the pulling rod to move, and the movement of the pulling rod will drive the connecting frame to rotate around the fixed plate. The rotation of the connecting frame will drive the first rotating rod and the second rotating rod to rotate, thereby achieving the purpose of adjusting the angle between the first rotating rod and the second rotating rod.

[0023] 4) The sliding groove of this device can ensure that the lifting rod slides along the upright, and also prevent the lifting rod from shaking during movement, thus ensuring the normal operation of the lifting rod.

[0024] 5) The connecting frame of this device facilitates the connection of the pull rod and the first rotating rod or the second rotating rod. The fixing block and the side plate are set on both sides of the fixing plate to limit the position of the support rod, prevent the support rod from shaking during rotation, and ensure the normal rotation of the first rotating rod and the second rotating rod.

[0025] 6) When the angle between the first rotating rod and the second rotating rod increases, the distance between the two ends of the first rotating rod and the second rotating rod will gradually increase. Since the length of the abrasive belt remains unchanged, the sliding plate will move along the adjustment hole towards the side closer to the fixed plate under the action of the abrasive belt. The movement of the abrasive belt along the strip hole towards the side of the fixed plate will drive the first rotating roller to move towards the side closer to the fixed plate, thereby ensuring that the abrasive belt can work normally.

[0026] 7) The groove of this device cooperates with the first rotating rod to guide the sliding plate and limit its movement, preventing the sliding plate from shaking during movement and ensuring the normal operation of the first rotating roller.

[0027] 8) The locking component of this device can lock the first and second rotating rods, preventing them from rotating during the grinding of the carriage. By turning the handle, the rotating shaft is driven to rotate, which in turn drives the gears to rotate. The gears mesh with the first and second racks respectively. During the rotation of the first and second racks, the limiting block will move until the limiting block cooperates with the limiting mechanism, thereby locking the first and second rotating rods and ensuring the stability and safety of the device during operation.

[0028] 9) The limiting mechanism of this device is designed to cooperate with the limiting block, ensuring that the locking component can lock the first rotating rod and the second rotating rod, preventing the first rotating rod and the second rotating rod from rotating during operation, thus ensuring the grinding quality and efficiency of the device on the carriage.

[0029] 10) The clearance hole in this device can ensure the normal operation of the first rack and the second rack, prevent interference with the limit block during the adjustment of the included angle between the first rotating rod and the second rotating rod, and ensure the normal operation of the first rotating rod and the second rotating rod. Attached Figure Description

[0030] Appendix Figure 1 This is a schematic diagram of the structure of the present invention.

[0031] Appendix Figure 2 This is a schematic diagram of the installation structure of the fixing frame in this invention.

[0032] Appendix Figure 3 This is a schematic diagram of the installation structure of the grinding component in this invention.

[0033] Appendix Figure 4 This is a schematic diagram of the installation structure of the adjusting component in this invention.

[0034] Appendix Figure 5 This is a schematic diagram of the connecting frame in this invention.

[0035] Appendix Figure 6 This is the present invention. Figure 4 Enlarged view of point A in the middle.

[0036] Appendix Figure 7 This is a schematic diagram of the clearance hole in this invention.

[0037] Appendix Figure 8 This is a schematic diagram of the bushing installation structure in this invention.

[0038] Appendix Figure 9 This is a schematic diagram of the structure of the locking component of this invention.

[0039] Appendix Figure 10 This is a schematic diagram of the structure of the first annular groove and the second annular groove in this invention.

[0040] Appendix Figure 11 This is a schematic diagram of the limiting mechanism in this invention.

[0041] In the picture:

[0042] 1. Fixture; 101. Handle; 102. Upright pole; 103. Connecting rod;

[0043] 2. Fixed plate; 201. Mounting groove; 202. First annular groove; 203. Second annular groove;

[0044] 3. First rotating rod; 301. Adjustment hole; 302. Clearance hole;

[0045] 4. Grinding assembly; 401. First rotating roller; 402. Second auxiliary roller; 403. Adjusting component; 404. First auxiliary roller; 405. Second rotating roller; 406. Grinding belt; 407. Third rotating roller; 408. Adjusting mechanism; 409. Drive motor;

[0046] 4010. Connecting frame; 4011. Pull rod; 4012. Lifting rod; 4013. Slide groove; 4014. Slider;

[0047] 4015, Fixing groove; 4016, Fixing block; 4017, Through hole; 4018, Support rod; 4019, Side plate;

[0048] 4020, First spring; 4021, Moving block; 4022, Sliding plate; 4023, Groove; 4024, Guide rod;

[0049] 5. Second rotating rod;

[0050] 6. Locking element; 601. Handle; 602. Rotating shaft; 603. Gear; 604. First rack; 605. Limiting block; 606. Second rack; 607. Guide groove; 608. Guide rail;

[0051] 609. Limiting plate; 6010. Push plate; 6011. Second spring; 6012. Fixing rod; 6013. Limiting groove;

[0052] 7. Fixed shell;

[0053] 8. Bushing. Detailed Implementation

[0054] The technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 this invention.

[0056] like Figure 1 , Figure 8 As shown, a grinding device for the carriage of an electric four-wheeled vehicle includes a fixed plate 2, a first rotating rod 3, a second rotating rod 5, a grinding assembly 4, and a fixed frame 1. A fixed shell 7 is fixedly installed on one side of the fixed plate 2, and the fixed frame 1 is connected to the fixed shell 7. A bushing 8 is provided on the middle of the other side of the fixed plate 2. The bushing 8 facilitates the installation of the first rotating rod 3 and the second rotating rod 5, ensuring the normal operation of the first rotating rod 3 and the second rotating rod 5. The first rotating rod 3 and the second rotating rod 5 are located on the other side of the fixed plate 2 and are hinged to the bushing 8. The grinding assembly 4 is installed on the fixed plate 2, the first rotating rod 3, and the second rotating rod 5. A locking member 6 is also provided on the fixed plate 2 to lock the first rotating rod 3 and the second rotating rod 5, ensuring the normal operation of the first rotating rod 3 and the second rotating rod 5.

[0057] like Figure 3As shown, the grinding assembly 4 includes a drive motor 409, an adjusting component 403, a first rotating roller 401, a second rotating roller 405, a third rotating roller 407, and a sanding belt 406. The drive motor 409 is located on one side of the fixed disk 2, and the output shaft of the drive motor 409 extends through the fixed disk 2 and the bushing 8 to the other side of the fixed disk 2. The third rotating roller 407 is located on the output shaft of the drive motor 409. The first rotating roller 401 is located at one end of the first rotating rod 3, and the second rotating roller 405 is located at the other end of the second rotating rod 5. The drive motor 409 drives the third rotating roller 407 to rotate, and the third rotating roller 407 drives the first rotating roller 401 and the second rotating roller 405 to rotate through the sanding belt 406. The adjusting component 403 is located on the fixed frame 1. The sanding belt 406 is used to grind the curved surface or edges of the carriage, ensuring the grinding quality and efficiency of the curved surface and edges. The adjusting component 403 is used to adjust the angle between the second rotating rod 5 and the second rotating rod 5.

[0058] In this embodiment, the drive motor 409 is located inside the fixed housing 7, which not only saves installation space but also ensures the normal operation of the drive motor 409.

[0059] In this embodiment, as Figure 3 As shown, the polishing assembly 4 also includes a first auxiliary roller 404 and a second auxiliary roller 402. The first auxiliary roller 404 is disposed at the other end of the first rotating rod 3, and the second auxiliary roller 402 is disposed at the other end of the second rotating rod 5. Both the first auxiliary roller 404 and the second auxiliary roller 402 cooperate with the abrasive belt 406. The arrangement of the first auxiliary roller 404 and the second auxiliary roller 402 facilitates cooperation with the abrasive belt 406, ensures the wrap angle between the abrasive belt 406 and the third rotating roller 407, and prevents relative sliding between the third rotating roller 407 and the abrasive belt 406.

[0060] In this embodiment, as Figure 2 As shown, the fixing frame 1 includes a handle 101, uprights 102 symmetrically arranged on both sides of the center line of the handle 101, and a connecting rod 103 arranged at the bottom of the uprights 102. The connecting rod 103 is fixedly installed on the fixing shell 7. The handle 101 is designed to facilitate the worker's grip and application of pressure, ensuring that the abrasive belt 406 is in close contact with the carriage, thus ensuring the abrasive belt 406's abrasive belt efficiency and abrasive quality in the carriage.

[0061] The handle 101 is designed to make it easy for staff to pick up the device, ensuring that the device can work properly.

[0062] In this embodiment, as Figure 4As shown, the adjusting component 403 includes a lifting rod 4012, a pulling rod 4011, and a connecting frame 4010. The two ends of the lifting rod 4012 are slidably engaged with the upright rods 102 located on both sides of the center line of the handle 101. The pulling rods 4011 are symmetrically arranged on both sides of the center line of the lifting rod 4012. There are two connecting frames 4010, which are respectively located at the other ends of the first rotating rod 3 and the second rotating rod 5. The two ends of the pulling rod 4011 are respectively connected to the connecting frame 4010 and the lifting rod 4012.

[0063] The adjustment component 403 ensures that the abrasive belt 406 can work normally during the rotation of the first rotating rod 3 and the second rotating rod 5. Pulling the lifting rod 4012 drives the pulling rod 4011 to move. The movement of the pulling rod 4011 will drive the connecting frame 4010 to rotate around the fixed plate 2. The rotation of the connecting frame 4010 will drive the first rotating rod 3 and the second rotating rod 5 to rotate, thereby achieving the purpose of adjusting the included angle between the first rotating rod 3 and the second rotating rod 5.

[0064] In this embodiment, the lifting rod 4012 includes an arc-shaped part and a straight part. The arc-shaped part is convenient for workers to pull and hold, and the straight part is convenient for connecting to the pulling rod 4011, thus ensuring the working efficiency and quality of the lifting rod 4012.

[0065] In this embodiment, as Figure 4 As shown, sliders 4014 are fixedly installed at both ends of the lifting rod 4012. Sliding grooves 4013 are opened on the sliders 4014. The sliding grooves 4013 slide with the upright rod 102. The setting of the sliding grooves 4013 can ensure that the lifting rod 4012 slides along the upright rod 102. On the other hand, the setting of the sliding grooves 4013 can also prevent the lifting rod 4012 from shaking during the movement, thus ensuring the normal operation of the lifting rod 4012.

[0066] In this embodiment, as Figure 5 As shown, the connecting frame 4010 includes a support rod 4018, a fixing block 4016, and a side plate 4019. The support rod 4018 is fixedly installed on the first rotating rod 3 or the second rotating rod 5. The fixing block 4016 and the side plate 4019 are respectively arranged on both sides of the fixed plate 2, and the fixing block 4016 and the side plate 4019 are slidably engaged with the side wall of the fixed plate 2. The pulling rod 4011 is rotatably connected to the support rod 4018. The connecting frame 4010 facilitates the connection between the pulling rod 4011 and the first rotating rod 3 or the second rotating rod 5. The fixing block 4016 and the side plate 4019 arranged on both sides of the fixed plate 2 can limit the position of the support rod 4018, prevent the support rod 4018 from shaking during rotation, and ensure the normal rotation of the first rotating rod 3 and the second rotating rod 5.

[0067] In this embodiment, as Figure 6 As shown, an adjustment mechanism 408 is also provided on the first rotating rod 3. The adjustment mechanism 408 includes a guide rod 4024, a first spring 4020, a sliding plate 4022, and a moving block 4021. An adjustment hole 301 is opened on the first rotating rod 3. The two ends of the guide rod 4024 are respectively fixedly installed on the two inner walls of the adjustment hole 301. The moving block 4021 is disposed in the adjustment hole 301 and is slidably connected to the guide rod 4024. The sliding plate 4022 is fixedly installed on the moving block 4021. The first spring 4020 is sleeved on the guide rod 4024. The first spring 4020 is used to provide power to the moving block 4021, ensuring that the sliding plate 4022 always has a pushing force to move away from the fixed plate 2, ensuring that the abrasive belt 406 is always in a taut state, and ensuring the normal operation of the abrasive belt 406.

[0068] When the included angle between the first rotating rod 3 and the second rotating rod 5 increases, the distance between the two ends of the first rotating rod 3 and the second rotating rod 5 will gradually increase. Since the length of the abrasive belt 406 remains unchanged, the sliding plate 4022 will move along the adjustment hole 301 towards the side closer to the fixed plate 2 under the action of the abrasive belt 406. The movement of the sliding plate 4022 along the strip hole towards the side of the fixed plate 2 will drive the first rotating roller 401 to move towards the side closer to the fixed plate 2, thereby ensuring that the abrasive belt 406 can work normally.

[0069] In this embodiment, as Figure 6 As shown, a groove 4023 is formed at the bottom of the sliding plate 4022. The groove 4023 is slidably engaged with the first rotating rod 3. The first rotating roller 401 is rotatably mounted on the sliding plate 4022.

[0070] The groove 4023, in conjunction with the first rotating rod 3, serves two purposes: guiding the sliding plate 4022 and limiting its position, preventing it from wobbling during movement and ensuring the normal operation of the first rotating roller 401.

[0071] In this embodiment, as Figure 9 , Figure 10As shown, the locking component 6 includes a limiting mechanism, a handle 601, a rotating shaft 602, a gear 603, a first rack 604, and a second rack 606. A first annular groove 202, a second annular groove 203, and a mounting groove 201 are formed on one side of the fixed disk 2. The rotating shaft 602 is rotatably mounted in the middle of the mounting groove 201. The gear 603 is fixedly mounted on the rotating shaft 602. The handle 601 is located on the other side of the fixed disk 2 and is fixedly mounted on the rotating shaft 602. The first rack 604 and the second rack 606 have an arc-shaped structure. The first rack 604 and the second rack 606 are slidably disposed within the first annular groove 202 and the second annular groove 203, respectively, and both the first rack 604 and the second rack 606 mesh with the gear 603. Limiting blocks 605 are provided on both the first rack 604 and the second rack 606. The limiting mechanism is located on the fixed block 4016 and cooperates with the limiting blocks 605.

[0072] The locking component 6 serves to lock the first rotating rod 3 and the second rotating rod 5, preventing them from rotating during the grinding process of the carriage. By rotating the handle 601, the rotating shaft 602 is driven to rotate, which in turn drives the gear 603 to rotate. The gear 603 meshes with the first rack 604 and the second rack 606 respectively. During the rotation of the first rack 604 and the second rack 606, the limiting block 605 will move until it engages with the limiting mechanism, thereby locking the first rotating rod 3 and the second rotating rod 5 and ensuring the stability and safety of the device during operation.

[0073] In this embodiment, as Figure 9 As shown, guide grooves 607 are provided on both the first rack 604 and the second rack 606, and guide rails 608 are provided in both the first annular groove 202 and the second annular groove 203. The guide grooves 607 and the guide rails 608 are slidably engaged. The arrangement of the guide grooves 607 and the guide rails 608 can ensure the normal movement of the first rack 604 and the second rack 606 and prevent the first rack 604 and the second rack 606 from shaking during the movement.

[0074] In this embodiment, as Figure 11As shown, the limiting mechanism includes a fixed rod 6012, a second spring 6011, a limiting plate 609, and a pushing plate 6010. A fixing groove 4015 is formed on the fixing block 4016, and a through hole 4017 is formed on the support rod 4018. The through hole 4017 is connected to the fixing groove 4015. The two ends of the fixed rod 6012 are respectively fixedly installed at the two ends of the through hole 4017. The limiting plate 609 is slidably disposed in the fixing groove 4015. The pushing plate 6010 is fixedly installed on one side of the limiting plate 609 and is disposed in the through hole 4017. The pushing plate 6010 is slidably engaged with the fixed rod 6012. The second spring 6011 is sleeved on the fixed rod 6012. A limiting groove 6013 is formed on the limiting plate 609, and the limiting groove 6013 engages with the limiting block 605.

[0075] The limiting mechanism is designed to cooperate with the limiting block 605, ensuring that the locking member 6 can lock the first rotating rod 3 and the second rotating rod 5, preventing the first rotating rod 3 and the second rotating rod 5 from rotating during operation, thus ensuring the grinding quality and efficiency of the device on the carriage.

[0076] In this embodiment, the limiting block 605 can adopt a triangular cross-section or an isosceles trapezoidal structure. Similarly, the limiting groove 6013 should be configured as a groove-shaped structure to match the limiting block 605. When the limiting block 605 is configured in this way, it can easily push the limiting plate 609 away from the fixed plate 2 when it comes into contact with the limiting plate 609, so that the limiting block 605 can cooperate with the limiting groove 6013.

[0077] In this embodiment, the second spring 6011 is provided to provide power to the limiting plate 609, ensuring that the limiting plate always has a pulling force toward the fixed plate 2, ensuring that the limiting plate 609 always cooperates with the limiting block 605, preventing the first rotating rod 3 and the second rotating rod 5 from rotating during operation, and ensuring the normal operation of the device.

[0078] In this embodiment, as Figure 7 As shown, clearance holes 302 are provided on both the first rotating rod 3 and the second rotating rod 5. The clearance hole 302 on the first rotating rod 3 is engaged with the first rack 604, and the clearance hole 302 on the second rotating rod 5 is engaged with the second rack 606.

[0079] The clearance hole 302 ensures the normal operation of the first rack 604 and the second rack 606, prevents interference with the limit block 605 during the adjustment of the included angle between the first rotating rod 3 and the second rotating rod 5, and ensures the normal operation of the first rotating rod 3 and the second rotating rod 5.

[0080] Its working process is as follows:

[0081] During operation, the lifting rod 4012 is pulled upwards as needed. This upward movement of the lifting rod 4012 causes one end of the pulling rod 4011 to move upwards. The upward movement of the pulling rod 4011 then pulls the ends of the first rotating rod 3 and the second rotating rod 5 towards the center simultaneously, thereby adjusting the angle between the first rotating rod 3 and the second rotating rod 5. Once the angle adjustment is complete, the handle 601 is turned, causing the rotating shaft 602 to rotate. The rotation of the rotating shaft 602 drives the gear 603 to rotate. The gear 603 meshes with the first rack 604 and the second rack 606 respectively. During the rotation of the first rotating rod 604 and the second rack 606, the limiting block 605 will move. When the limiting block 605 contacts the limiting plate 609, it will push the limiting plate 609 along the fixing groove 4015 to the side away from the fixing plate 2. When the limiting plate 609 moves to the side of the original fixing plate 2, it will compress the second spring 6011. When the limiting block 605 moves to the limiting groove 6013 on the limiting plate 609, the limiting plate 609 can be reset under the action of the second spring 6011, so that the limiting block 605 is inserted into the limiting groove 6013, thereby achieving the purpose of limiting and locking the first rotating rod 3 and the second rotating rod 5.

[0082] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A grinding device for the carriage of an electric four-wheeled vehicle, comprising a fixed plate, a first rotating rod, a second rotating rod, a grinding assembly, and a fixed frame, wherein a fixed shell is provided on one side of the fixed plate, the fixed frame is connected to the fixed shell, and a bushing is provided in the middle of the other side of the fixed plate, characterized in that, The first rotating rod and the second rotating rod are disposed on the other side of the fixed plate, and the first rotating rod and the second rotating rod are hinged to the bushing. The grinding assembly is mounted on the fixed plate, the first rotating rod and the second rotating rod. The polishing assembly includes a drive motor, an adjusting component, a first rotating roller, a second rotating roller, a third rotating roller, and a sanding belt. The drive motor is located on one side of the fixed disk and inside the fixed housing. The output shaft of the drive motor passes through the fixed disk and the bushing, extending to the other side of the fixed disk. The third rotating roller is located on the output shaft of the drive motor. The first rotating roller is located at one end of the first rotating rod, and the second rotating roller is located at one end of the second rotating rod. The drive motor drives the third rotating roller to rotate, and the third rotating roller drives the first and second rotating rollers to rotate through the sanding belt. The adjusting component is located on the fixed frame and is used to adjust the angle between the first rotating rod and the second rotating rod. The fixed plate is also equipped with a locking device for locking the first rotating rod and the second rotating rod; The adjusting component includes a lifting rod, a pulling rod, and a connecting frame. The two ends of the lifting rod are slidably engaged with uprights located on both sides of the center line of the handle. The pulling rods are symmetrically arranged on both sides of the center line of the lifting rod. There are two connecting frames, which are respectively located at the other ends of the first rotating rod and the second rotating rod. The two ends of the pulling rod are respectively connected to the connecting frame and the lifting rod. Slider blocks are fixedly installed at both ends of the lifting rod, and sliding grooves are opened on the sliders, which slide in conjunction with the uprights. The connecting frame includes a support rod, a fixing block, and a side plate. The support rod is fixedly installed on the first rotating rod or the second rotating rod. The fixing block and the side plate are respectively arranged on both sides of the fixed plate, and the fixing block and the side plate are slidably engaged with the side wall of the fixed plate. The pulling rod is rotatably connected to the support rod. The locking component includes a limiting mechanism, a handle, a rotating shaft, a gear, a first rack, and a second rack. A first annular groove, a second annular groove, and a mounting groove are formed on one side of the fixed plate. The rotating shaft is rotatably mounted in the middle of the mounting groove. The gear is fixedly mounted on the rotating shaft. The handle is located on the other side of the fixed plate and is also fixedly mounted on the rotating shaft. The first and second racks have an arc-shaped structure. The first and second racks are slidably disposed within the first and second annular grooves, respectively, and both mesh with the gear. Limiting blocks are provided on both the first and second racks. The limiting mechanism is disposed on the fixed blocks and cooperates with the limiting blocks.

2. The grinding device for the carriage of an electric four-wheeled vehicle as described in claim 1, characterized in that, The grinding assembly also includes a first auxiliary roller and a second auxiliary roller. The first auxiliary roller is disposed at the other end of the first rotating rod, and the second auxiliary roller is disposed at the other end of the second rotating rod. Both the first auxiliary roller and the second auxiliary roller cooperate with the abrasive belt.

3. The grinding device for the carriage of an electric four-wheeled vehicle as described in claim 1, characterized in that, The mounting bracket includes a handle, uprights symmetrically arranged on both sides of the center line of the handle, and a connecting rod at the bottom of the uprights, the connecting rod being fixedly mounted on the mounting shell.

4. The grinding device for the carriage of an electric four-wheeled vehicle as described in claim 1, characterized in that, An adjustment mechanism is also provided on the first rotating rod. The adjustment mechanism includes a guide rod, a first spring, a sliding plate, and a moving block. An adjustment hole is opened on the first rotating rod. The two ends of the guide rod are respectively fixedly installed on the two inner walls of the adjustment hole. The moving block is disposed in the adjustment hole and is slidably connected to the guide rod. The first spring is sleeved on the guide rod. The sliding plate is fixedly installed on the moving block. When the included angle between the first rotating rod and the second rotating rod increases, the distance between the two ends of the first rotating rod and the second rotating rod will gradually increase. Since the length of the abrasive belt remains unchanged, the sliding plate will move along the adjustment hole towards the side closer to the fixed plate under the action of the abrasive belt. The movement of the sliding plate along the strip hole towards the side of the fixed plate will drive the first rotating roller to move towards the side closer to the fixed plate.

5. A grinding device for the carriage of an electric four-wheeled vehicle as described in claim 4, characterized in that, A groove is provided at the bottom of the sliding plate, and the groove is slidably engaged with the first rotating rod. The first rotating roller is rotatably mounted on the sliding plate.

6. The grinding device for the carriage of an electric four-wheeled vehicle as described in claim 1, characterized in that, The limiting mechanism includes a fixed rod, a second spring, a limiting plate, and a pushing plate. A fixing groove is formed on the fixed block, and a through hole is formed on the supporting rod. The through hole communicates with the fixing groove. The two ends of the fixed rod are respectively fixedly installed at the two ends of the through hole. The limiting plate is slidably disposed in the fixing groove. The pushing plate is fixedly installed on one side of the limiting plate and disposed in the through hole. The pushing plate is slidably engaged with the fixed rod. The second spring is sleeved on the fixed rod. A limiting groove is formed on the limiting plate, and the limiting groove engages with the limiting block.

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