New energy automobile gear precision grinding and polishing device

By using a rotating tube clamping assembly driven by a high-pressure air pump and fan blades, combined with a grinding and polishing assembly, the problem of requiring separate drive components for gear clamping and rotation in existing technologies is solved, thereby reducing equipment costs and improving grinding and polishing effects.

CN224445554UActive Publication Date: 2026-07-03SHANGHAI THINKHEAD M & E CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI THINKHEAD M & E CO LTD
Filing Date
2025-06-27
Publication Date
2026-07-03

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Abstract

This application discloses a precision grinding and polishing device for new energy vehicle gears, relating to the field of gear grinding and polishing. It includes an operating table with a drive assembly for rotating the gears and a grinding and polishing assembly for grinding and polishing the gears. The drive assembly includes a cavity inside the operating table. This application utilizes the coordinated arrangement of a rotating tube, a high-pressure air pump, and fan blades. In use, the gear is fitted onto the rotating tube, and the high-pressure air pump is activated, allowing gas to enter the cavity through the air supply pipe, blowing the fan blades to rotate the rotating tube. Simultaneously, the clamping assembly fixes the gear, causing it to rotate. The grinding and polishing assembly then grinds and polishes the gear, minimizing the problem of increased equipment costs caused by the inability to simultaneously clamp and rotate the gear using a single drive component.
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Description

Technical Field

[0001] This application relates to the field of gear grinding and polishing, and in particular to a precision grinding and polishing device for gears in new energy vehicles. Background Technology

[0002] Precision gear grinding and polishing refers to the process of treating the surface of gears through a series of precision machining and polishing techniques to achieve extremely high precision and smoothness. Specifically, precision gear grinding and polishing includes two main steps: gear grinding and polishing.

[0003] Existing gear grinding and polishing devices fix the gear on a mounting rod, then use a clamping mechanism to clamp the mounting rod and install the gear, and then use a drive mechanism to drive the clamping mechanism to rotate, thus rotating the gear. However, the clamping mechanism and the drive mechanism are mostly driven by separate drive components, which cannot clamp and rotate the gear simultaneously with a single drive component, resulting in increased equipment costs. Utility Model Content

[0004] To address the aforementioned issues, this application provides a precision grinding and polishing device for gears in new energy vehicles.

[0005] The precision grinding and polishing device for new energy vehicle gears provided in this application adopts the following technical solution:

[0006] A precision grinding and polishing device for gears in new energy vehicles includes an operating table. The operating table is equipped with a drive assembly for rotating the gears and a grinding and polishing assembly for grinding and polishing the gears. The drive assembly includes a cavity inside the operating table, and a rotating tube is disposed within the cavity. The top end of the rotating tube passes through the operating table and forms a rotatable connection. Multiple annular array fan blades are fixedly connected to the side wall of one end of the rotating tube located within the cavity. A high-pressure air pump is fixedly connected to one side wall of the operating table, and an air supply pipe is fixedly connected to the output end of the high-pressure air pump. The end of the air supply pipe away from the high-pressure air pump is located within the cavity. An exhaust port communicating with the cavity is opened on one side of the upper surface of the operating table. A clamping assembly for fixing the gears is disposed within the rotating tube.

[0007] By adopting the above technical solution, in use, the gear is sleeved on the rotating tube, and the high-pressure air pump is started to allow gas to enter the cavity through the air supply pipe, blowing the fan blades to make the rotating tube rotate. At the same time, the clamping assembly fixes the gear and drives the gear to rotate. Then, the grinding and polishing assembly grinds and polishes the gear, which avoids the problem of not being able to clamp and rotate the gear at the same time through a single driving component, which would increase the cost of the equipment.

[0008] Preferably, the clamping assembly includes a connecting pipe disposed at the top end inside the rotating tube, the two ends of the connecting pipe being fixedly connected to the sidewalls of the rotating tube, piston plates being slidably disposed at both ends inside the connecting pipe, a push rod being fixedly connected to the sidewall of the two piston plates facing away from each other, the end of the push rod away from the piston plate passing through the connecting pipe and being fixedly connected to an abutment plate, an air inlet hole being opened on the sidewall of the connecting pipe between the two piston plates, and a diverter pipe being rotatably connected to the bottom end of the rotating tube through a sealing rotary joint, the diverter pipe passing through the operating table and being fixedly connected to the air supply pipe.

[0009] By adopting the above technical solution, when the high-pressure air pump is started to blow the fan blades and drive the rotating tube to rotate, the gas enters the rotating tube through the diverter pipe and enters the connecting pipe through the air inlet. This pushes the two piston plates to move in opposite directions, causing the push rod to push the abutment plate to move and abut against the inner wall of the gear. This allows the gear to be clamped and fixed while it is being driven to rotate.

[0010] Preferably, two retaining rings are fixedly connected inside the connecting pipe between the two piston plates, and the two retaining rings are respectively located on both sides of the air inlet.

[0011] By adopting the above technical solution, the movement distance of the piston plate can be limited by the retaining ring, preventing the piston plate from contacting the air inlet and causing gas to enter the connecting pipe, thus preventing the piston plate from moving.

[0012] Preferably, the polishing assembly includes an L-shaped plate fixedly connected to the upper surface of the operating table, an electric slide rail fixedly connected to the lower surface of the L-shaped plate directly above the rotating tube, an electric slider slidably connected to the lower surface of the electric slide rail, a motor fixedly connected to the lower surface of the electric slider, a rotating rod fixedly connected to the output end of the motor, and a steel brush for polishing gears fixedly connected to the end of the rotating rod away from the motor.

[0013] By adopting the above technical solution, when the gear is fixed on the rotating tube and rotates, the electric slide rail is activated, which causes the electric slider to move the motor and bring the steel brush close to the gear. Then, the motor is activated to drive the steel brush to rotate and polish the gear.

[0014] Preferably, an air blowing pipe is fixedly connected to the upper surface of the operating table, the air blowing pipe is connected to the exhaust hole, and the end of the air blowing pipe away from the operating table is close to the rotating pipe.

[0015] By adopting the above technical solution, the gas discharged from the exhaust hole can be blown towards the rotating tube through the air blowing pipe, which blows away the dust and debris generated during the gear grinding and polishing process, thereby improving the grinding and polishing effect on the gear.

[0016] Preferably, one end of the rotating tube is fixedly connected to a placement tray, and the placement tray is located above the operating table.

[0017] By adopting the above technical solution, when the gear is sleeved on the rotating tube by placing the disc, it is possible to prevent the gear from contacting the operating table and avoid friction between the gear and the operating table during rotation, which would cause wear to the gear.

[0018] Preferably, a plurality of support balls are rotatably connected to the lower surface of the placement tray, and the support balls are in contact with the operating table.

[0019] By adopting the above technical solution, the placement plate can be supported by the supporting ball bearings, which improves the stability of the rotation of the rotating tube and prevents the gear from pressing down on the placement plate and causing the rotating tube to loosen.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application utilizes the coordinated arrangement of structures such as a rotating tube, a high-pressure air pump, and fan blades. In use, by mounting the gear on the rotating tube and activating the high-pressure air pump, gas is introduced into the cavity through the air supply pipe, blowing the fan blades to rotate the rotating tube. Simultaneously, the clamping assembly fixes the gear, causing it to rotate. Then, the grinding and polishing assembly grinds and polishes the gear. This approach minimizes the problem of increased equipment costs caused by the inability to simultaneously clamp and rotate the gear using a single drive component.

[0022] 2. The air blowing pipe can utilize the gas discharged from the exhaust port, directing the gas towards the rotating tube to blow away the dust and debris generated during gear grinding and polishing, thereby improving the grinding and polishing effect on the gears. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the precision grinding and polishing device for new energy vehicle gears according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the internal structure of the control panel, which is a key feature of this application.

[0025] Figure 3 The embodiments of this application mainly embody Figure 2 A schematic diagram of the enlarged structure of region A in the middle;

[0026] Figure 4 The embodiments of this application mainly embody Figure 2 A schematic diagram of the enlarged structure of region B in the middle.

[0027] Reference numerals: 1. Operating platform; 2. Cavity; 3. Rotating pipe; 4. Fan blade; 5. High-pressure air pump; 6. Air supply pipe; 7. Exhaust port; 8. Connecting pipe; 9. Piston plate; 10. Push rod; 11. Abutment plate; 12. Air inlet; 13. Diverter pipe; 14. Retaining ring; 15. L-shaped plate; 16. Electric slide rail; 17. Electric slider; 18. Motor; 19. Rotating rod; 20. Steel brush; 21. Air blowing pipe; 22. Placement tray; 23. Support ball bearing. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0029] This application discloses a precision grinding and polishing device for gears in new energy vehicles.

[0030] Reference Figure 1 , Figure 2 and Figure 3 A precision grinding and polishing device for gears in new energy vehicles includes an operating table 1. The operating table 1 is equipped with a drive assembly for rotating the gears and a grinding and polishing assembly for grinding and polishing the gears. The drive assembly includes a cavity 2, a rotating tube 3, a fan blade 4, a high-pressure air pump 5, an air supply pipe 6, and an exhaust port 7.

[0031] Cavity 2 is located inside operating table 1. Rotating tube 3 is located in cavity 2. The top end of rotating tube 3 penetrates cavity 2 and is located above operating table 1. The top end of rotating tube 3 is sealed and is rotatably connected to operating table 1 through a sealed bearing. Multiple fan blades 4 are provided, all fixedly connected to the side wall of rotating tube 3 located inside cavity 2 and distributed in a ring array. High-pressure air pump 5 is fixedly connected to one side wall of operating table 1. One end of air supply pipe 6 is fixedly connected to the output end of high-pressure air pump 5. The end of air supply pipe 6 away from high-pressure air pump 5 is located inside cavity 2. Exhaust port 7 is located on the upper surface of operating table 1 away from high-pressure air pump 5 and is connected to cavity 2. A clamping assembly for fixing gears is provided inside rotating tube 3.

[0032] Reference Figure 1 , Figure 2 and Figure 3The clamping assembly includes a connecting pipe 8 located at the top of the inside of the rotating tube 3. Both ends of the connecting pipe 8 are fixedly connected to the side walls of the rotating tube 3. Piston plates 9 are slidably arranged at both ends inside the connecting pipe 8. A push rod 10 is fixedly connected to the side wall of the two piston plates 9 facing away from each other. The end of the push rod 10 away from the piston plate 9 passes through the connecting pipe 8 and is fixedly connected to an abutment plate 11. An air inlet hole 12 is opened on the side wall of the connecting pipe 8 between the two piston plates 9. A diverter pipe 13 is rotatably connected to the bottom of the rotating tube 3 through a sealed rotary joint. The diverter pipe 13 passes through the operating table 1 and is fixedly connected to the air supply pipe 6. When the high-pressure air pump 5 is started and blows the fan blade 4, causing the rotating tube 3 to rotate, gas enters the rotating tube 3 through the diverter pipe 13 and enters the connecting pipe 8 through the air inlet hole 12. This pushes the two piston plates 9 to move away from each other, causing the push rod 10 to push the abutment plate 11 to move, and the abutment plate 11 abuts against the inner wall of the gear. This allows the gear to be clamped and fixed while rotating.

[0033] Reference Figure 3 Two retaining rings 14 are fixedly connected inside the connecting pipe 8 between the two piston plates 9. The two retaining rings 14 are located on both sides of the air inlet 12. The retaining rings 14 can limit the movement distance of the piston plate 9 and prevent the piston plate 9 from contacting the air inlet 12, causing gas to enter the connecting pipe 8 and making it impossible to push the piston plate 9 to move.

[0034] Reference Figure 1 The polishing assembly includes an L-shaped plate 15 fixedly connected to the upper surface of the operating table 1. An electric slide rail 16 is fixedly connected to the lower surface of the L-shaped plate 15 directly above the rotating tube 3. An electric slider 17 is slidably connected to the lower surface of the electric slide rail 16. A motor 18 is fixedly connected to the lower surface of the electric slider 17. A rotating rod 19 is fixedly connected to the output end of the motor 18. A steel brush 20 for polishing the gear is fixedly connected to the end of the rotating rod 19 away from the motor 18. When the gear is fixed on the rotating tube 3 and rotated, the electric slide rail 16 is activated, causing the electric slider 17 to drive the motor 18 to move and bring the steel brush 20 close to the gear. Then, the motor 18 is activated to drive the steel brush 20 to rotate and polish the gear.

[0035] Reference Figure 1 and Figure 2 An air blowing pipe 21 is fixedly connected to the upper surface of the operating table 1. The air blowing pipe 21 is connected to the exhaust port 7. The end of the air blowing pipe 21 away from the operating table 1 is close to the rotating tube 3. The air blowing pipe 21 can blow the gas discharged from the exhaust port 7 towards the rotating tube 3, blow away the dust and debris generated during the gear grinding and polishing process, and improve the grinding and polishing effect on the gear.

[0036] Reference Figure 1One end of the rotating tube 3 is fixedly connected to a placement plate 22, which is located above the operating table 1. By using the placement plate 22, when the gear is sleeved on the rotating tube 3, the gear can be prevented from contacting the operating table 1, thus avoiding friction between the gear and the operating table 1 during rotation and causing wear to the gear.

[0037] Reference Figure 1 and Figure 4 Multiple support balls 23 are rotatably connected to the lower surface of the placement tray 22. The support balls 23 are in contact with the operating table 1. The support balls 23 can support the placement tray 22, improve the stability of the rotation of the rotating tube 3, and prevent the gear from pressing down on the placement tray 22 and causing the rotating tube 3 to loosen.

[0038] The implementation principle of the precision grinding and polishing device for new energy vehicle gears in this application embodiment is as follows: During use, the gear is sleeved on the rotating tube 3, with the abutment plate 11 positioned on one side of the gear. The high-pressure air pump 5 is activated, allowing gas to enter the cavity 2 through the air supply pipe 6, which in turn blows the fan blades 4, causing the rotating tube 3 to rotate. Simultaneously, gas enters the rotating tube 3 through the diversion pipe 13 and then enters the connecting pipe 8 through the air inlet 12, pushing the two piston plates 9 to move in opposite directions. This causes the push rod 10 to push the abutment plate 11, bringing it into contact with the inner wall of the gear. This process drives the rotating tube 3... While rotating, the gear is clamped and fixed, causing the gear to rotate. Then, by activating the electric slide rail 16, the electric slider 17 drives the motor 18 to move, bringing the steel brush 20 close to the gear. Then, the motor 18 is activated to drive the steel brush 20 to rotate, polishing the gear. During the polishing process, the air blower 21 blows the gas discharged from the exhaust port 7 to the rotating tube 3, blowing away the dust and debris generated during the gear polishing process, improving the polishing effect of the gear, and avoiding the problem of not being able to clamp and rotate the gear simultaneously with a single drive component, which would increase the equipment cost.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precision grinding and polishing device for new energy vehicle gears, comprising an operation table (1), a driving assembly for rotating the gear and a grinding and polishing assembly for grinding and polishing the gear are arranged on the operation table (1), characterized in that: The drive assembly includes a cavity (2) opened inside the operating table (1), a rotating tube (3) is provided in the cavity (2), the top end of the rotating tube (3) passes through the operating table (1) and forms a rotatable connection, a plurality of annular array fan blades (4) are fixedly connected to one side wall of the rotating tube (3) located in the cavity (2), a high-pressure air pump (5) is fixedly connected to one side wall of the operating table (1), an air supply pipe (6) is fixedly connected to the output end of the high-pressure air pump (5), the end of the air supply pipe (6) away from the high-pressure air pump (5) is located in the cavity (2), an exhaust hole (7) communicating with the cavity (2) is opened on one side of the upper surface of the operating table (1), and a clamping assembly for fixing gears is provided in the rotating tube (3).

2. The precision grinding and polishing device for new energy vehicle gears according to claim 1, characterized in that: The clamping assembly includes a connecting pipe (8) disposed at the top of the inside of the rotating tube (3). Both ends of the connecting pipe (8) are fixedly connected to the side wall of the rotating tube (3). Piston plates (9) are slidably disposed at both ends inside the connecting pipe (8). A push rod (10) is fixedly connected to the side wall of the two piston plates (9) facing away from each other. The end of the push rod (10) away from the piston plate (9) passes through the connecting pipe (8) and is fixedly connected to an abutment plate (11). An air inlet (12) is opened on the side wall of the connecting pipe (8) between the two piston plates (9). A diverter pipe (13) is rotatably connected to the bottom of the rotating tube (3) through a sealed rotary joint. The diverter pipe (13) passes through the operating table (1) and is fixedly connected to the air supply pipe (6).

3. The new energy vehicle gear precision grinding and polishing device according to claim 2, characterized in that: Two retaining rings (14) are fixedly connected inside the connecting pipe (8) between the two piston plates (9), and the two retaining rings (14) are respectively located on both sides of the air inlet (12).

4. The new energy vehicle gear precision grinding and polishing device according to claim 3, characterized in that: The polishing assembly includes an L-shaped plate (15) fixedly connected to the upper surface of the operating table (1). An electric slide rail (16) is fixedly connected to the lower surface of the L-shaped plate (15) directly above the rotating tube (3). An electric slider (17) is slidably connected to the lower surface of the electric slide rail (16). A motor (18) is fixedly connected to the lower surface of the electric slider (17). A rotating rod (19) is fixedly connected to the output end of the motor (18). A steel brush (20) for polishing gears is fixedly connected to the end of the rotating rod (19) away from the motor (18).

5. The new energy vehicle gear precision grinding and polishing device according to claim 4, characterized in that: An air blowing pipe (21) is fixedly connected to the upper surface of the operating table (1). The air blowing pipe (21) is connected to the exhaust hole (7). The end of the air blowing pipe (21) away from the operating table (1) is close to the rotating pipe (3).

6. The new energy vehicle gear precision grinding and polishing device according to claim 5, characterized in that: One end of the rotating tube (3) is fixedly connected to a placement plate (22), which is located above the operating table (1).

7. The new energy vehicle gear precision grinding and polishing device according to claim 6, characterized in that: The lower surface of the placement tray (22) is rotatably connected to a plurality of support balls (23), which are in contact with the operating table (1).