Electric drive axle surface finishing device

Abstract

The utility model discloses an electric drive axle surface finishing device, which relates to the technical field of electric drive axle production equipment and comprises a base, an air duct is arranged in one side of the base, an air pipe is fixedly connected to the upper end of one side of the base, and the middle of the air pipe is communicated with the middle of the air pipe. The side, facing the middle of the base, of the air pipe is fixedly connected with a plurality of air outlets, the middles of the air outlets communicate with the middle of the air pipe, and the area of the ends, close to the air pipe, of the air outlets is larger than that of the other ends. According to the electric drive axle, a plurality of sets of sixth servo motors drive fan blades to rotate at the same time, so that outside air penetrates through a filter screen, enters an air groove and enters an air pipe along the air groove, the air entering the air groove is accelerated through the fan blades, the air is accelerated to flow out of a plurality of sets of third installation bases, and high pressure flowing out of an air outlet informs the air to flow towards the electric drive axle; and chippings generated by polishing can be blown into the collecting box, so that the chippings are collected.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drive bridge production equipment, in particular to a surface finishing device for an electric drive bridge. Background Technique

[0002] An electric drive bridge, abbreviated as an electric axle, is a device that converts electrical energy into mechanical energy, mainly used to drive vehicles or other means of transportation. It usually consists of one or more electric motors, a speed reducer and other related components. In an electric vehicle, the electric drive bridge is the power source of the vehicle, responsible for converting the electrical energy provided by the battery pack into mechanical energy to drive the vehicle forward. During the production process of the electric drive bridge, it is necessary to polish the surface of the electric drive bridge to facilitate polishing and painting of the surface of the electric drive bridge.

[0003] Existing surface finishing devices do not have a debris cleaning structure. After surface finishing, a large amount of debris will accumulate on the device, damaging the device and reducing its service life. Moreover, most of these debris are metals. If not processed, it is also a waste of materials and increases production costs. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to provide a surface finishing device for an electric drive bridge.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a surface finishing device for an electric drive bridge, including a base. Inside one side of the base, there is an air duct, and one end of the air duct passes through the side of the base and is connected to the outside. On the upper end of one side of the base, an air pipe is fixedly connected. The middle of the air pipe is connected to the middle of the air pipe. On the side of the air pipe facing the middle of the base, a number of air outlets are fixedly connected, and the middle of the air outlets is connected to the middle of the air pipe. The area of one end of the air outlet close to the air pipe is larger than that of the other end. Inside the base, a number of groups of fifth mounting seats are fixedly connected, and the fifth mounting seats are located inside the air duct. In the middle of the fifth mounting seat, a sixth servo motor is fixedly connected. The output end of the sixth servo motor is fixedly connected with a fan blade. On one side of the base, a filter screen is fixedly connected, and the filter screen is located at one end of the air duct.

[0006] As a further description of the above technical solution:

[0007] Three sides of the upper surface of the base are detachably connected with side baffles. The upper ends of the side baffles are hinged with upper baffles through hinges. A collection box is arranged on one side of the base, and the collection box is located on one side of the notch of the side baffle. The side baffles, the upper baffles and the collection box are all made of transparent plastic. The side baffles and the upper baffles can block the debris to avoid polluting the environment of the factory. The collection box can collect the debris. Using transparent plastic can facilitate the workers to observe the progress of surface finishing. At the same time, the cost of plastic is lower. After grinding, the side baffles, the upper baffles and the collection box can be removed from the base, which is convenient for the workers to take out and put in the electric drive axle and clean the remaining debris.

[0008] As a further description of the above technical solution:

[0009] Both ends of the upper surface of the base are fixedly connected with a first rotating shaft seat and a second rotating shaft seat. The upper ends of the first rotating shaft seat and the second rotating shaft seat are both rotatably connected with a first sliding rod. The lower ends of the first rotating shaft seat and the second rotating shaft seat are both rotatably connected with a first threaded rod, and the threads on the surface of the first threaded rods at both ends of the base are opposite. One end of the first threaded rod is fixedly connected with a first synchronous pulley, and the first synchronous pulley is rotatably connected inside the second rotating shaft seat. Two groups of first support columns slide on the upper surface of the base along the first sliding rod. The threads of the two groups of first threaded rods are opposite. When the two groups of first threaded rods rotate in the same direction, the moving directions of the two groups of first support columns are opposite. The two groups of first support columns slide towards the middle of the base at the same time, or slide towards both ends of the base at the same time.

[0010] As a further description of the above technical solution:

[0011] A second servo motor is fixedly connected inside one end of the base. The output end of the second servo motor is fixedly connected with a first synchronous pulley. The two first synchronous pulleys are connected by a first synchronous belt. The end of the first threaded rod far away from the first synchronous pulley is fixedly connected with a second synchronous pulley. The second servo motor drives the first threaded rod to rotate through the first synchronous pulley and the first synchronous belt. The first threaded rod drives the other first threaded rod to rotate through the second synchronous pulley, the second synchronous belt and the transmission shaft, so that the two groups of first threaded rods rotate in the same direction at the same time.

[0012] As a further description of the above technical solution:

[0013] A drive shaft is rotatably connected to the middle of the base. Both ends of the drive shaft are fixedly connected with second synchronous pulleys. Two adjacent second synchronous pulleys are connected by a second synchronous belt. The surface of the first threaded rod is threadedly connected with a first support column. A first sliding rod is slidably connected to the middle of the first support column. The upper end of the first support column is fixedly connected with a first mounting seat. A first servo motor is fixedly connected to the middle of the first mounting seat. The output end of the first servo motor is fixedly connected with a clamping plate. A rubber pad is arranged in the middle of the clamping plate. The two clamping plates can clamp the electric drive axle. The first servo motor drives the clamping plate to rotate, and the clamping plate drives the first servo motor to rotate, so that the clamping plate drives the electric drive axle to rotate. When the two first support columns drive the two first servo motors to approach each other, the two clamping plates clamp both ends of the electric drive axle. The rubber pad can increase the friction between the clamping plate and the diameter of the electric drive axle, prevent the electric drive axle from falling off the surface of the clamping plate, and at the same time enable the clamping plate to drive the electric drive axle to rotate. When the two first support columns drive the first servo motor to move away from each other, the electric drive axle can be removed.

[0014] As a further description of the above technical solution:

[0015] Both ends of the base are fixedly connected with second support columns. The upper ends of the second support columns are fixedly connected with second mounting seats. A third motor is fixedly connected to the middle of the second mounting seat. The output end of the third motor is fixedly connected with a third synchronous pulley. A second threaded shaft is rotatably connected to the middle of the second support column. One end of the second threaded shaft passing through the second support column is fixedly connected with a third synchronous pulley. The two third synchronous pulleys are connected by a third synchronous belt. The third motor drives the second threaded shaft to rotate clockwise through the third synchronous pulley and the third synchronous belt, so that the third support column moves along the second threaded shaft to the position in the middle of the base. When the third motor drives the second threaded shaft to rotate counterclockwise, the third support column moves away from the second support column along the second threaded shaft.

[0016] As a further description of the above technical solution:

[0017] The surface of the second threaded shaft is threadedly connected with a third support column. The upper end of a group of third support columns is fixedly connected with a third mounting seat. A fourth servo motor is fixedly connected to the middle of the third mounting seat. The output end of the fourth servo motor is fixedly connected with a fourth synchronous pulley. The lower end of the third support column is slidably connected with a second sliding rod. The middle and upper part of the third support column is threadedly connected with a third threaded shaft. One end of the third threaded shaft close to the third mounting seat is fixedly connected with a fourth synchronous pulley. The two fourth synchronous pulleys are connected by a fourth synchronous belt. The fourth servo motor drives the third threaded shaft to rotate through the fourth synchronous pulley and the fourth synchronous belt, so that the fourth support column moves along the second sliding rod and the third threaded shaft, thereby adjusting the grinding position.

[0018] As a further description of the above technical solution:

[0019] The middle part of the third threaded shaft is threadedly connected with a fourth support column. The lower end of the fourth support column is slidably connected with a second sliding rod. The upper end of the fourth support column is fixedly connected with a fourth mounting seat. The middle part of the fourth mounting seat is fixedly connected with a fifth servo motor. The output end of the fifth servo motor is detachably connected with a grinding disc. By driving the grinding disc to rotate with the fifth servo motor, when the fifth servo motor is attached to the surface of the electric drive axle, the fifth servo motor can grind the surface of the electric drive axle.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, firstly, during the grinding process, several groups of sixth servo motors drive the fan blades to rotate simultaneously, so that the outside air passes through the filter screen and enters the air duct, and then enters the inside of the air duct along the air duct. The air entering the air duct is accelerated by the fan blades, so that the air accelerates and flows out from several groups of third mounting seats. The high-pressure air flowing out from the air outlet flows towards the electric drive axle, and can blow the debris generated by grinding into the collection box, thereby collecting the debris. All the exposed structures of this device are on the upper surface of the base, and the channel generated by the first synchronous belt is covered by the first rotating shaft seat, so that the debris will not fall to the place where the wind cannot blow, so that most of the debris can be blown into the collection box, and the remaining small part of the debris can be cleaned by the cleaning device, avoiding the damage of the device by the debris and increasing the service life of the device. Description of the Drawings

[0022] Figure 1 is a three-dimensional view of the utility model;

[0023] Figure 2 is a three-dimensional structure diagram of the utility model;

[0024] Figure 3 is a three-dimensional structure diagram of the first part of the base section of the utility model;

[0025] Figure 4 is a three-dimensional structure diagram of the second part of the base section of the utility model;

[0026] Figure 5 is a three-dimensional structure diagram of the third part of the base section of the utility model.

[0027] Legend Explanation:

[0028] 1. Base; 2. Side baffle; 3. Upper baffle; 4. First rotating shaft seat; 5. Second rotating shaft seat; 6. First support column; 7. First mounting seat; 8. First servo motor; 9. Clamping plate; 10. First slide bar; 11. First threaded rod; 12. Second servo motor; 13. First synchronous pulley; 14. First synchronous belt; 15. Transmission shaft; 16. Second synchronous pulley; 17. Second synchronous belt; 18. Second support column; 19. Second mounting seat; 20. Third motor; 21. Third synchronous pulley; 22. Second threaded shaft; 23. Third synchronous belt; 24. Third support column; 25. Third mounting seat; 26. Fourth servo motor; 27. Fourth synchronous pulley; 28. Third threaded shaft; 29. Fourth synchronous belt; 30. Second slide bar; 31. Fourth support column; 32. Fourth mounting seat; 33. Fifth servo motor; 34. Air duct; 35. Air outlet; 36. Filter screen; 37. Fifth mounting seat; 38. Sixth servo motor; 39. Fan blade; 40. Collection box. Detailed implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Refer to Figures 1-5, an embodiment provided by the present utility model: an electric drive axle surface finishing device, including a base 1. An air groove is provided inside one side of the base 1, and one end of the air groove passes through the side surface of the base 1 and is connected to the outside. A wind pipe 34 is fixedly connected to the upper end of one side of the base 1. The middle part of the wind pipe 34 is connected to the middle part of the wind pipe 34. A plurality of air outlets 35 are fixedly connected to the side of the wind pipe 34 facing the middle of the base 1, and the middle part of the air outlet 35 is connected to the middle part of the wind pipe 34. The area of one end of the air outlet 35 close to the wind pipe 34 is larger than that of the other end. A plurality of groups of fifth mounting seats 37 are fixedly connected inside the base 1, and the fifth mounting seats 37 are located inside the air groove. A sixth servo motor 38 is fixedly connected to the middle of the fifth mounting seat 37, and a fan blade 39 is fixedly connected to the output end of the sixth servo motor 38. A filter screen 36 is fixedly connected to one side of the base 1, and the filter screen 36 is located at one end of the air groove. Side baffles 2 are detachably connected to three sides of the upper surface of the base 1. An upper baffle 3 is hinged to the upper end of the side baffle 2 through a hinge. A collection box 40 is provided on one side of the base 1, and the collection box 40 is located on one side of the notch of the side baffle 2. The side baffle 2, the upper baffle 3 and the collection box 40 are all made of transparent plastic. The side baffle 2 and the upper baffle 3 can block the debris to avoid polluting the factory environment. The collection box 40 can collect the debris. Using transparent plastic can facilitate the workers to observe the progress of surface finishing, and at the same time, the cost of plastic is lower. After grinding, the side baffle 2, the upper baffle 3 and the collection box 40 can be removed from the base 1, which is convenient for the workers to take and place the electric drive axle and clean the remaining debris.

[0032] Both ends of the base 1 are fixedly connected with second support columns 18. The upper ends of the second support columns 18 are fixedly connected with second mounting seats 19. The middle of the second mounting seat 19 is fixedly connected with a third motor 20. The output end of the third motor 20 is fixedly connected with a third synchronous pulley 21. The middle of the second support column 18 is rotatably connected with a second threaded shaft 22. One end of the second threaded shaft 22 passing through the second support column 18 is fixedly connected with the third synchronous pulley 21. The two groups of third synchronous pulleys 21 are connected by a third synchronous belt 23. The third motor 20 drives the second threaded shaft 22 to rotate clockwise through the third synchronous pulley 21 and the third synchronous belt 23, so that the third support column 24 moves along the second threaded shaft 22 to the middle position of the base 1. When the third motor 20 drives the second threaded shaft 22 to rotate counterclockwise, the third support column 24 moves away from the second support column 18 along the second threaded shaft 22. The surface of the second threaded shaft 22 is threadedly connected with the third support column 24. The upper end of one group of third support columns 24 is fixedly connected with a third mounting seat 25. The middle of the third mounting seat 25 is fixedly connected with a fourth servo motor 26. The output end of the fourth servo motor 26 is fixedly connected with a fourth synchronous pulley 27. The lower end of the third support column 24 is slidably connected with a second slide bar 30. The upper middle part of the third support column 24 is threadedly connected with a third threaded shaft 28. One end of the third threaded shaft 28 close to the third mounting seat 25 is fixedly connected with the fourth synchronous pulley 27. The two groups of fourth synchronous pulleys 27 are connected by a fourth synchronous belt 29. The fourth servo motor 26 drives the third threaded shaft 28 to rotate through the fourth synchronous pulley 27 and the fourth synchronous belt 29, so that the fourth support column 31 moves along the second slide bar 30 and the third threaded shaft 28, thereby adjusting the grinding position. The middle of the third threaded shaft 28 is threadedly connected with the fourth support column 31. The lower end of the fourth support column 31 is slidably connected with a second slide bar 30. The upper end of the fourth support column 31 is fixedly connected with a fourth mounting seat 32. The middle of the fourth mounting seat 32 is fixedly connected with a fifth servo motor 33. The output end of the fifth servo motor 33 is detachably connected with a grinding disc. The fifth servo motor 33 drives the grinding disc to rotate. When the fifth servo motor 33 is attached to the surface of the electric drive axle, the fifth servo motor 33 can grind the surface of the electric drive axle;

[0033] Both ends of the upper surface of the base 1 are fixedly connected with a first rotating shaft seat 4 and a second rotating shaft seat 5. The upper ends of the first rotating shaft seat 4 and the second rotating shaft seat 5 are rotatably connected with a first sliding rod 10, and the lower ends of the first rotating shaft seat 4 and the second rotating shaft seat 5 are rotatably connected with a first threaded rod 11. The threads on the surfaces of the first threaded rods 11 at both ends of the base 1 are opposite. One end of the first threaded rod 11 is fixedly connected with a first synchronous pulley 13, and the first synchronous pulley 13 is rotatably connected inside the second rotating shaft seat 5. Two groups of first support columns 6 slide on the upper surface of the base 1 along the first sliding rod 10. The threads of the two groups of first threaded rods 11 are opposite. When the two groups of first threaded rods 11 rotate in the same direction, the moving directions of the two groups of first support columns 6 are opposite. The two groups of first support columns 6 slide towards the middle of the base 1 at the same time, or slide towards both ends of the base 1 at the same time. A second servo motor 12 is fixedly connected inside one end of the base 1. The output end of the second servo motor 12 is fixedly connected with a first synchronous pulley 13. The two groups of first synchronous pulleys 13 are connected by a first synchronous belt 14. The end of the first threaded rod 11 far away from the first synchronous pulley 13 is fixedly connected with a second synchronous pulley 16. The second servo motor 12 drives the first threaded rod 11 to rotate through the first synchronous pulley 13 and the first synchronous belt 14. The first threaded rod 11 drives the other group of first threaded rods 11 to rotate through the second synchronous pulley 16, the second synchronous belt 17 and the transmission shaft 15, so that the two groups of first threaded rods 11 rotate in the same direction at the same time. The transmission shaft 15 is rotatably connected in the middle of the base 1. Both ends of the transmission shaft 15 are fixedly connected with second synchronous pulleys 16. The two groups of adjacent second synchronous pulleys 16 are connected by a second synchronous belt 17. The surface of the first threaded rod 11 is threadedly connected with a first support column 6. The middle of the first support column 6 is slidably connected with a first sliding rod 10. The upper end of the first support column 6 is fixedly connected with a first mounting seat 7. The middle of the first mounting seat 7 is fixedly connected with a first servo motor 8. The output end of the first servo motor 8 is fixedly connected with a clamping plate 9. A rubber pad is arranged in the middle of the clamping plate 9. The two groups of clamping plates 9 can clamp the electric drive axle. The first servo motor 8 drives the clamping plate 9 to rotate, and the clamping plate 9 drives the first servo motor 8 to rotate, so that the clamping plate 9 drives the electric drive axle to rotate. When the two groups of first support columns 6 drive the two groups of first servo motors 8 to approach each other, the two groups of clamping plates 9 clamp both ends of the electric drive axle. The rubber pad can increase the friction between the clamping plate 9 and the diameter of the electric drive axle, prevent the electric drive axle from falling off the surface of the clamping plate 9, and at the same time enable the clamping plate 9 to drive the electric drive axle to rotate. When the two groups of first support columns 6 drive the first servo motor 8 to move away from each other, the electric drive axle can be removed.

[0034] Working principle: During use, the worker moves the electric drive axle between the two sets of clamping plates 9 through an external hanging bracket. When starting the device through an external controller, the second servo motor 12 drives the two sets of first threaded rods 11 to rotate clockwise through the first synchronous pulley 13, the first synchronous belt 14, the second synchronous pulley 16, the second synchronous belt 17 and the transmission shaft 15, so that the first support column 6 drives the clamping plates 9 to move along the first slide rod 10 and the first threaded rods 11 towards the middle of the base 1, thereby clamping the two ends of the electric drive axle with the clamping plates 9. When the clamping plates 9 are tightened, the second servo motor 12 stops rotating. Rubber pads are installed on the clamping plates 9, which can increase the friction between the clamping plates 9 and the electric drive axle and prevent the electric drive axle from falling off the clamping plates 9. Then, the side baffle 2, the upper baffle 3 and the collection box 40 are installed on the base 1. Then, the third motor 20 drives the second threaded shaft 22 to rotate clockwise through the third synchronous pulley 21 and the third synchronous belt 23, so that the third support column 24 moves along the second threaded shaft 22 towards the middle position of the base 1. The third support column 24 drives the fourth support column 31 to move towards the electric drive axle through the third threaded shaft 28 and the second slide rod 30, so that the grinding disc is close to the surface of the electric drive axle. Then, the third motor 20 stops rotating, and the grinding disc is driven to rotate by the fifth servo motor 33 to grind the surface of the electric drive axle. At the same time, the first servo motor 8 drives the clamping plates 9 to rotate, thereby driving the electric drive axle to rotate, increasing the range that the grinding disc can grind. At the same time, the fourth servo motor 26 drives the third threaded shaft 28 to rotate through the fourth synchronous pulley 27 and the fourth synchronous belt 29, so that the fourth support column 31 drives the fifth servo motor 33 to move along the third threaded shaft 28 and the second slide rod 30, so that different positions of the electric drive axle are ground. According to the different diameters of different positions of the electric drive axle, the fourth support column 31 only slides back and forth along the third threaded shaft 28 and the second slide rod 30 within the same diameter range. After grinding this diameter, the third motor 20 drives the second threaded shaft 22 to rotate again, thereby adjusting the position of the third support column 24 so that the grinding disc can grind the parts of the electric drive axle with different diameters. During the grinding process, several groups of sixth servo motors 38 drive the fan blades 39 to rotate at the same time, so that the outside air passes through the filter screen 36 and enters the air groove, and then enters the inside of the air duct 34 along the air groove. The air entering the air groove is accelerated by the fan blades 39, so that the air accelerates and flows out from several groups of third mounting seats 25, and the high-pressure air flowing out from the air outlet 35 flows towards the electric drive axle, which can blow the debris generated by grinding into the collection box 40, thereby collecting the debris. All the exposed structures of this device are on the upper surface of the base 1, and the channel generated by the first synchronous belt 14 is covered by the first rotating shaft seat 4, so that the debris will not fall to places where the wind cannot blow, so that most of the debris can be blown into the collection box 40. After grinding, the third motor 20 drives the second threaded shaft 22 to rotate counterclockwise, so that the third support column 24 returns to its original position, and the fourth servo motor 26 drives the fourth synchronous pulley 27 to rotate, so that the fourth support column 31 returns to its original position. Then, the side baffle 2 and the upper baffle 3 are removed, and the worker uses tools to clean up the remaining small part of the debris.Avoid debris from damaging the device and increase the service life of the device. Then, fix the electric drive axle through an external hanging bracket. After that, the second servo motor 12 drives the first threaded rod 11 to rotate counterclockwise, causing the first support column 6 to slide along the first slide rod 10 and the first threaded rod 11 towards both ends of the base 1, thereby releasing the electric drive axle and enabling the polished electric drive axle to be removed. After that, repeat the above operations to polish and trim the surfaces of other electric drive axles to be polished.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric drive bridge surface finishing device, comprising a base (1), characterized in that: A wind slot is provided inside one side of the base (1), and one end of the wind slot passes through the side of the base (1) and is connected to the outside. An upper end of one side of the base (1) is fixedly connected to a wind duct (34), and the middle of the wind duct (34) is connected to the middle of the wind duct (34). A plurality of air outlets (35) are fixedly connected to one side of the wind duct (34) facing the middle of the base (1), and the middle of the air outlet (35) is connected to the middle of the wind duct (34). The area of ​​one end of the air outlet (35) close to the wind duct (34) is larger than the area of ​​the other end. A plurality of groups of fifth mounting seats (37) are fixedly connected inside the base (1), and the fifth mounting seat (37) is located inside the wind slot. A sixth servo motor (38) is fixedly connected to the middle of the fifth mounting seat (37), and a fan blade (39) is fixedly connected to the output end of the sixth servo motor (38). A filter screen (36) is fixedly connected to one side of the base (1), and the filter screen (36) is located at one end of the wind slot.

2. The electric drive bridge surface finishing device according to claim 1, characterized in that: The three sides of the upper surface of the base (1) are detachably connected to side baffles (2), the upper ends of the side baffles (2) are hingedly connected to an upper baffle (3) via hinges, a collection box (40) is provided on one side of the base (1), and the collection box (40) is located on one side of the notch of the side baffle (2), and the side baffle (2), the upper baffle (3) and the collection box (40) are all made of transparent plastic.

3. The electric drive bridge surface finishing device according to claim 1, characterized in that: The first rotating shaft seat (4) and the second rotating shaft seat (5) are fixedly connected at both ends of the upper surface of the base (1); the upper ends of the first rotating shaft seat (4) and the second rotating shaft seat (5) are rotatably connected to the first sliding rod (10); the lower ends of the first rotating shaft seat (4) and the second rotating shaft seat (5) are rotatably connected to the first threaded rod (11); the threads on the surfaces of the first threaded rod (11) at both ends of the base (1) are opposite; one end of the first threaded rod (11) is fixedly connected to the first synchronous wheel (13), and the first synchronous wheel (13) is rotatably connected to the inside of the second rotating shaft seat (5).

4. The electric drive bridge surface finishing device according to claim 3, characterized in that: A second servo motor (12) is fixedly connected to one end of the base (1); a first synchronous wheel (13) is fixedly connected to the output end of the second servo motor (12); two groups of the first synchronous wheels (13) are connected via a first synchronous belt (14); and a second synchronous wheel (16) is fixedly connected to one end of the first threaded rod (11) away from the first synchronous wheel (13).

5. The electric drive bridge surface finishing device according to claim 4, characterized in that: The middle part of the base (1) is rotatably connected to a transmission shaft (15), and both ends of the transmission shaft (15) are fixedly connected to second synchronous wheels (16). Two sets of adjacent second synchronous wheels (16) are connected via a second synchronous belt (17). The surface of the first threaded rod (11) is threadedly connected to a first support column (6), and the middle part of the first support column (6) is slidably connected to a first sliding rod (10). The upper end of the first support column (6) is fixedly connected to a first mounting seat (7), and the middle part of the first mounting seat (7) is fixedly connected to a first servo motor (8). The output end of the first servo motor (8) is fixedly connected to a clamping plate (9), and a rubber pad is provided in the middle of the clamping plate (9).

6. The electric drive bridge surface finishing device according to claim 1, characterized in that: Both ends of the base (1) are fixedly connected to a second support column (18); the upper end of the second support column (18) is fixedly connected to a second mounting seat (19); the middle of the second mounting seat (19) is fixedly connected to a third motor (20); the output end of the third motor (20) is fixedly connected to a third synchronous wheel (21); the middle of the second support column (18) is rotatably connected to a second threaded shaft (22); one end of the second threaded shaft (22) passing through the second support column (18) is fixedly connected to the third synchronous wheel (21); and two groups of the third synchronous wheels (21) are connected via a third synchronous belt (23).

7. The electric drive bridge surface finishing device according to claim 6, characterized in that: The surface of the second threaded shaft (22) is threadedly connected with a third support column (24); the upper end of a group of the third support columns (24) is fixedly connected with a third mounting seat (25); the middle part of the third mounting seat (25) is fixedly connected with a fourth servo motor (26); the output end of the fourth servo motor (26) is fixedly connected with a fourth synchronous wheel (27); the lower end of the third support column (24) is slidably connected with a second slide bar (30); the middle upper end of the third support column (24) is threadedly connected with a third threaded shaft (28); one end of the third threaded shaft (28) close to the third mounting seat (25) is fixedly connected with a fourth synchronous wheel (27); and the two groups of the fourth synchronous wheels (27) are connected via a fourth synchronous belt (29).

8. The electric drive bridge surface finishing device according to claim 7, characterized in that: A fourth support column (31) is threadedly connected to the middle part of the third threaded shaft (28); a second slide bar (30) is slidably connected to the lower end of the fourth support column (31); a fourth mounting seat (32) is fixedly connected to the upper end of the fourth support column (31); a fifth servo motor (33) is fixedly connected to the middle part of the fourth mounting seat (32); and a grinding sheet is detachably connected to the output end of the fifth servo motor (33).

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