Gear quick polishing device

Abstract

The application discloses a gear rapid polishing device and particularly relates to the technical field of polishing equipment, which comprises an operation box, a bottom plate fixed on the operation box, a division structure arranged on the bottom plate, a driving structure arranged on the bottom plate and used for driving the division structure, a polishing component arranged on the bottom plate, an installation block fixed on the bottom plate, an installation frame slidably arranged on the side surface of the installation block through two damping springs, a U-shaped frame rotatably arranged in the inner cavity of the installation frame, a pushing assembly arranged on the installation frame and used for driving the U-shaped frame to rotate, and an eccentric moving assembly arranged in the inner cavity of the U-shaped frame and used for driving the polishing assembly to move back and forth. The gear rapid polishing device can make the polishing assembly adapt to the curvature change of a tooth surface, avoid uneven polishing of tooth tips and tooth roots, and prevent burrs from being left or being excessively abraded, and can also solve the problem that burrs at tooth roots are difficult to be completely removed.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and in particular to a gear rapid grinding device. Background Technology

[0002] Gears are core mechanical components for transmitting power and motion, widely used in automobiles, aerospace, shipbuilding, wind power, industrial robots, precision instruments, and other fields. Their machining quality (precision, surface finish, tooth surface hardness distribution, residual stress, etc.) directly determines the efficiency, noise, vibration, load-bearing capacity, and service life of the transmission system. Bevel gears are special; their spatial curved surface structure renders traditional grinding processes ineffective.

[0003] During the grinding of straight bevel gears, the fixed grinding mold cannot adapt to changes in the curvature of the tooth surface, resulting in uneven grinding of the tooth tip and root, leading to burr residue or excessive wear. Molds with straight or circular trajectories also struggle to match the tooth surface of the bevel gear, making it difficult to completely remove burrs at the tooth root. Furthermore, during grinding, flying debris may splash and adhere to the inner wall of the assembly hole, causing errors during gear assembly and affecting the gear's assembly accuracy. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of uneven grinding of tooth tips or roots and difficulty in removing burrs during the grinding of straight bevel gears, where the fixed grinding tool cannot adapt to the curvature changes of the tooth surface and the grinding tool with a straight or circular trajectory cannot match the tooth surface of the bevel gear. Therefore, a gear rapid grinding device is proposed.

[0005] To achieve the above objectives, the present invention employs the following techniques:

[0006] A gear quick grinding device includes an operating box and a base plate fixed on the operating box. The base plate is provided with an indexing structure, a driving structure for driving the indexing structure, and a grinding component.

[0007] The grinding component includes a mounting block fixed to the base plate. A mounting frame is slidably mounted on the side of the mounting block via two damping springs. A U-shaped frame is rotatably mounted inside the mounting frame. A pushing component for driving the U-shaped frame to rotate is provided on the mounting frame. A grinding component and an eccentric movable component for driving the grinding component to reciprocate are provided inside the U-shaped frame.

[0008] By pushing the component, the U-shaped frame is rotated in an arc. The movement trajectory of the grinding component on the U-shaped frame is close to the tooth surface. As the grinding component follows the rotation of the U-shaped frame, the eccentric moving component pushes the grinding component to move back and forth.

[0009] As a further description of the gear rapid grinding device described above:

[0010] The pushing assembly includes a cylinder that is fixedly mounted on the mounting frame via a bracket. A rod is fixed to the output end of the cylinder. The pushing assembly also includes a fixing block fixed to the inner cavity of the U-shaped frame. A limiting groove adapted to the rod is provided on the fixing block.

[0011] As a further description of the gear rapid grinding device described above:

[0012] The polishing assembly includes a grooved block that is slidably installed between the two sides of the inner cavity of the U-shaped frame. A motor is fixed to the side of the grooved block, and a polishing brush located in the inner cavity of the grooved block is fixed to the output end of the motor.

[0013] As a further description of the gear rapid grinding device described above:

[0014] The eccentric movable component includes a second motor fixedly mounted on a U-shaped frame. The output end of the second motor is fixed with a connecting shaft. Two symmetrical cams are fixed on the connecting shaft. An eccentric wheel that is rotatably connected to the groove block is movably mounted on the outer surface of the two cams.

[0015] As a further description of the gear rapid grinding device described above:

[0016] A cleaning component is provided on the side of the U-shaped frame between two mounting plates. The mounting shaft of the cleaning component is connected to the connecting shaft by a pulley set. The cleaning component rotates in the opposite direction to the grinding brush.

[0017] As a further description of the gear rapid grinding device described above:

[0018] The drive structure includes a motor three fixed to the base plate and a circular plate fixed to the output end of the motor three. A push column is fixed on the protrusion on the outer surface of the circular plate.

[0019] As a further description of the gear rapid grinding device described above:

[0020] A push block is fixed to the outer surface of the circular plate by an arc plate, a push rod adapted to the push block is fixed to the bottom of the mounting frame, and a limiting block adapted to the mounting frame is fixed to the mounting block.

[0021] As a further description of the gear rapid grinding device described above:

[0022] The indexing structure includes a support ring and an electric push rod fixedly mounted on the base plate. A mounting ring block is rotatably connected to the support ring. The mounting ring block has multiple mating grooves adapted to the push column. The mounting ring block has multiple locking holes in a ring array adapted to the output end of the electric push rod.

[0023] As a further description of the gear rapid grinding device described above:

[0024] The indexing structure also includes a second cylinder fixed to the base plate. The output end of the second cylinder is rotatably engaged with a multi-faceted block. Multiple sets of rotating plates are rotatably mounted on the multi-faceted block through an opening in the mounting groove. The ends of two rotating plates in the same set that are away from the multi-faceted block are rotatably connected to an expansion plate. Multiple sliding grooves for sliding of the expansion plate are opened on the mounting ring block.

[0025] As a further description of the gear rapid grinding device described above:

[0026] Each of the expansion plates is fixed with an arc-shaped plate, and a connecting piece is fixed between two adjacent arc-shaped plates. A frustum block that contacts the inner surface of the multiple arc-shaped plates is fixed on the multi-faceted block by a mounting rod.

[0027] In summary, due to the adoption of the above-mentioned technology in the gear rapid grinding device, the beneficial effects of this invention are:

[0028] 1. This device, through its designed grinding components, enables the grinding assembly to adapt to changes in the curvature of the tooth surface, avoiding uneven grinding at the tooth tip and root that could lead to burr residue or excessive wear. It also solves the problem of difficult-to-remove burrs at the tooth root. By pushing the assembly, the U-shaped frame reciprocates in an arc, bringing the grinding assembly's movement trajectory close to the tooth surface, allowing for grinding of the tooth tip and root. Simultaneously, during the rotation of the U-shaped frame, the eccentric moving component pushes the grinding assembly to reciprocate, allowing the diameter of the grinding assembly rotating around the U-shaped frame's mounting axis to extend or shorten, adapting to changes in the tooth surface curvature and cleaning burrs at the tooth root. The reciprocating movement of the grinding assembly also prevents uneven grinding and excessive wear.

[0029] 2. This device, through the cooperation between the indexing structure and the drive structure, can shield the assembly hole of the straight bevel gear during the support process, preventing debris from splashing and adhering to the inner wall of the assembly hole, thus avoiding errors in gear assembly and affecting the assembly accuracy. The movement of cylinder two can move the multi-faceted blocks, which, in conjunction with multiple sets of multi-faceted blocks, cause multiple expansion plates to contract or expand. During the expansion of multiple expansion plates, the arc plates connected to the expansion plates move accordingly, and the connecting pieces between adjacent arc plates are stretched. In conjunction with the frustum block that rises with the multi-faceted blocks, the inner surfaces of multiple arc plates are blocked, thus sealing the assembly hole of the straight bevel gear and preventing debris from splashing into the assembly hole.

[0030] 3. This device, through the cooperation of the indexing structure, drive structure, and grinding components, can raise the grinding component during the indexing rotation of the straight bevel gear, thus preventing the grinding brush from scratching the tooth surface. The circular plate at the three output ends of the motor drives the push column and the push block to rotate. The push column engages with the mating groove to rotate the mounting ring block, and the straight bevel gear on it will also rotate. Before the mounting ring block rotates, the push rod and the push block have already lifted the mounting frame. The grinding component has already separated from the tooth surface before the straight bevel gear rotates. Therefore, the tooth surface will not be scratched during the rotation of the straight bevel gear. Attached Figure Description

[0031] Figure 1 A schematic diagram of the overall structure of the present invention is shown;

[0032] Figure 2 A schematic diagram of the grinding component structure of the present invention is shown. Figure 1 ;

[0033] Figure 3 A schematic diagram of the grinding component structure of the present invention is shown. Figure 2 ;

[0034] Figure 4 A schematic diagram of the rotation trajectory of the grinding component of the present invention is shown;

[0035] Figure 5 A schematic diagram of the structure of the driving component of the present invention is shown;

[0036] Figure 6 A schematic diagram of the grinding component structure of the present invention is shown;

[0037] Figure 7 A schematic diagram of the eccentric active component structure of the present invention is shown;

[0038] Figure 8 A schematic diagram of the drive structure and grinding component of the present invention is shown;

[0039] Figure 9 A schematic diagram of the grinding component structure of the present invention is shown;

[0040] Figure 10 A cross-sectional view of the grinding component structure of the present invention is shown.

[0041] Legend:

[0042] 10. Control box; 11. Base plate;

[0043] 20. Indexing structure; 21. Cylinder II; 22. Electric actuator; 221. Locking hole; 23. Support ring; 24. Mounting ring block; 241. Mating groove; 242. Sliding groove; 25. Multifaceted block; 251. Mounting groove; 26. Rotating plate; 27. Expanding plate; 28. Frustum block; 29. ​​Arc plate; 291. Connecting piece;

[0044] 30. Drive structure; 31. Motor 3; 32. Circular plate; 33. Push block; 34. Push column;

[0045] 40. Grinding component; 41. Mounting block; 42. Damping spring; 43. Mounting frame; 44. Pushing assembly; 441. Cylinder 1; 442. Fixing block; 443. Limiting groove; 445. Insert rod; 45. Eccentric moving assembly; 451. Motor 2; 452. Connecting shaft; 453. Eccentric wheel; 454. Cam; 46. Grinding assembly; 461. Motor 1; 462. Groove block; 463. Grinding brush; 47. Push rod; 48. U-shaped frame; 49. Cleaning assembly. Detailed Implementation

[0046] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a gear rapid grinding device according to the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0047] like Figure 1 As shown, a gear quick grinding device includes an operation box 10 and a base plate 11 fixed on the operation box 10. The base plate 11 is fixed to the upper surface of the operation box 10. The base plate 11 is provided with an indexing structure 20, which is used to clamp a straight bevel gear and perform indexing rotation. The base plate 11 is provided with a drive structure 30 for driving the indexing structure 20. The indexing structure 20 can drive the drive structure 30 to make the straight bevel gear rotate at a certain angle and lock it. The base plate 11 is provided with a grinding component 40, which is a component for grinding the straight bevel gear.

[0048] like Figures 2-4 As shown, the grinding component 40 includes a mounting block 41 fixed on the base plate 11. A mounting frame 43 is slidably mounted on the side of the mounting block 41 via two damping springs 42. The two symmetrical damping springs 42 are fixed on the mounting block 41 by a bracket. The output of the two damping springs 42 is fixedly connected to both sides of the mounting frame 43 via a connecting plate. The mounting frame 43 slides on the mounting block 41. Under the action of the two damping springs 42, the mounting frame 43 will not vibrate during the process of being lifted and restored.

[0049] Next, a U-shaped frame 48 is rotatably mounted inside the mounting frame 43. The mounting frame 43 is provided with a pushing component 44 that drives the U-shaped frame 48 to rotate. The pushing component 44 can make the U-shaped frame 48 rotate around the mounting axis. The inner cavity of the U-shaped frame 48 is provided with a grinding component 46 and an eccentric movable component 45 that drives the grinding component 46 to reciprocate. The grinding component 46 is close to the straight bevel gear. The eccentric movable component 45 can push the grinding component 46 to reciprocate between the two side walls of the inner cavity of the U-shaped frame 48.

[0050] During the arc rotation of the U-shaped frame 48, the grinding component 46 approaches the tooth surface of the straight bevel gear, and the eccentric moving component 45 pushes the grinding component 46 to move, so that the grinding component 46 adapts to the curvature change of the straight bevel gear, so that the grinding component 46 can always grind the tooth tip and tooth root, without causing problems such as missed grinding or incomplete burr removal.

[0051] like Figure 5 As shown, the pushing component 44 includes a cylinder 441 fixedly mounted on the mounting frame 43 by a bracket. The bracket is fixed to the upper surface of the mounting frame 43. The cylinder 441 is installed at an angle and there is an angle between it and the bracket. A plug rod 445 is fixed to the output end of the cylinder 441.

[0052] Next, the push assembly 44 also includes a fixing block 442 fixed to the inner cavity of the U-shaped frame 48. The fixing block 442 has a through groove for the movement of the output end of the cylinder 441. The fixing block 442 has a limiting groove 443 adapted to the insertion rod 445. The limiting groove 443 passes through the fixing block 442 to install the insertion rod 445, and the insertion rod 445 can slide in the limiting groove 443.

[0053] By retracting or extending the output end of cylinder 441, the insertion rod 445 slides in the inner cavity of the limiting groove 443, causing the fixing block 442 to rotate with the U-shaped frame 48.

[0054] like Figure 6 As shown, the grinding assembly 46 includes a groove block 462 that is slidably installed between the two sides of the inner cavity of the U-shaped frame 48. The groove block 462 is U-shaped in general, and there is a protrusion on the horizontal part of the U-shape for connecting with the components in the eccentric movable assembly 45. A motor 461 is fixed on the side of the groove block 462, and the U-shaped frame 48 has a groove to facilitate the movement of the motor 461 without affecting the overall movement of the grinding assembly 46. A grinding brush 463 located in the inner cavity of the groove block 462 is fixed at the output end of the motor 461. The grinding brush 463 is used to grind and polish the straight bevel gear.

[0055] Normally, the polishing brush 463 is in contact with the tooth surface of the spur bevel gear, which is convenient for description and observation. Figure 4 In the process, the edge of the polishing brush 463 is reduced, so the polishing brush 463 does not solve the problem of contacting the straight bevel gear.

[0056] like Figure 7 As shown, the eccentric moving assembly 45 includes a second motor 451 fixedly mounted on a U-shaped frame 48. A connecting shaft 452 is fixedly mounted at the output end of the second motor 451. The connecting shaft 452 passes through and is rotatably mounted on the U-shaped frame 48. Two symmetrical cams 454 are fixed on the connecting shaft 452. An eccentric wheel 453 that is rotatably connected to the groove block 462 is movably mounted on the outer surface of the two cams 454.

[0057] Motor 451 drives the connecting shaft 452 to rotate, which in turn drives the two cams 454 to rotate. This causes the two eccentric wheels 453 to move back and forth along with the groove block 462, thus enabling the grinding brush 463 to move back and forth. As the U-shaped frame 48 rotates, the grinding brush 463 moves back and forth, allowing it to approach or move away from the tooth surface of the straight bevel gear during its arc-shaped rotation. This adapts to the curvature of the straight bevel gear and prevents uneven grinding at the tooth tip and root. At the same time, the arc-shaped rotation adapts to the curvature of the straight bevel gear and prevents missed grinding.

[0058] Next, a cleaning assembly 49 is provided on the side of the U-shaped frame 48 between two mounting plates. The two mounting plates are symmetrically fixed on the U-shaped frame 48. The cleaning assembly 49 includes a mounting shaft and a cleaning roller. The mounting shaft is rotatably mounted on the two mounting plates. The mounting shaft of the cleaning assembly 49 is connected to the connecting shaft 452 through a pulley set. Both the mounting shaft and the connecting shaft 452 of the cleaning assembly 49 are fixed with pulleys. The two pulleys are connected by a belt so that the cleaning assembly 49 rotates in the same direction as the output end of the motor 451.

[0059] In addition, the cleaning component 49 rotates in the opposite direction to the polishing brush 463. The cleaning roller in the cleaning component 49 has teeth on its surface. When the polishing brush 463 rotates clockwise, the cleaning component 49 rotates counterclockwise. The teeth on the cleaning roller contact the bristles of the polishing brush 463, which can shake off the residual debris on the polishing brush 463 and prevent excessive residual debris on the groove block 462 from scratching the tooth surface or from accumulating debris and affecting the polishing quality.

[0060] To address the issue of gear misalignment during installation or gaps in the indexing mechanism leading to tooth position deviations, and to avoid issues such as under-grinding, over-grinding, and damage to the tooth surface, especially at the tooth root transition arc.

[0061] like Figure 8 As shown, the drive structure 30 includes a motor 31 fixed on the base plate 11 and a circular plate 32 fixed to the output end of the motor 31. The motor 31 is located in the inner cavity of the operation box 10. A push column 34 is fixed on the protrusion on the outer surface of the circular plate 32. A protrusion is fixed on the outer surface of the circular plate 32, and a push column 34 is fixed on the protrusion.

[0062] Next, as Figure 2 and Figure 4As shown, a push block 33 is fixed to the outer surface of the circular plate 32 via an arc plate. The inner surface of the arc plate is fixedly connected to the circular plate 32. The push block 33 is fixed to the outer surface of the arc plate. A push rod 47 adapted to the push block 33 is fixed to the bottom of the mounting frame 43. A ball is embedded in the bottom of the push rod 47. As the push block 33 rotates with the circular plate 32, the push rod 47 can move on the push block 33, thereby lifting the mounting frame 43. A limiting block 471 adapted to the mounting frame 43 is fixed on the mounting block 41. The push rod 47 passes through the limiting block 471. The limiting block 471 restricts the movement of the mounting frame 43 and prevents excessive movement.

[0063] like Figures 8-10 As shown, the indexing structure 20 includes a support ring 23 and an electric push rod 22 fixedly mounted on the base plate 11. A mounting ring block 24 is rotatably connected to the support ring 23. The mounting ring block 24 is concentric with the support ring 23. The mounting ring block 24 has multiple mating grooves 241 that are adapted to the push column 34. As the push column 34 rotates with the circular plate 32, it can enter the inner cavity of the mating groove 241 and push the mounting ring block 24 to rotate, so that the mounting ring block 24 rotates the same angle each time.

[0064] The mounting ring block 24 has multiple ring-shaped locking holes 221 that are adapted to the output end of the electric push rod 22. When the mounting ring block 24 rotates at a certain angle, the output end of the electric push rod 22 is not inserted into the locking holes 221. When grinding the straight bevel gear, the output end of the electric push rod 22 is inserted into the locking holes 221. While maintaining accurate indexing, the straight bevel gear is kept stable, and tooth position deviation is prevented during grinding, which would affect the grinding effect.

[0065] Furthermore, during the process of the push column 34 cooperating with the mating groove 241 to drive the mounting ring block 24 to rotate the straight bevel gear at a certain angle, before the push column 34 contacts the inner cavity of the mating groove 241, the push rod 47 is already located on the push block 33. This means that before the mounting ring block 24 rotates, the push rod 47 and the push block 33 have already lifted the mounting frame 43, thereby separating the grinding assembly 46 from the tooth surface of the straight bevel gear. During the rotation of the bevel gear, the grinding brush 463 will not contact the bevel gear, thus avoiding scratches on the teeth and preventing damage to the tooth surface caused by the grinding wheel during the bevel gear tooth surface switching process.

[0066] like Figure 10As shown, the indexing structure 20 also includes a second cylinder 21 fixed on the base plate 11. The second cylinder 21 is located in the inner cavity of the operating box 10. The output end of the second cylinder 21 is rotatably engaged with a multi-faceted block 25. The output end of the second cylinder 21 passes through the inner cavity of the mounting ring block 24 and is rotatably engaged with the multi-faceted block 25, so that the output end of the second cylinder 21 can move the multi-faceted block 25 without interfering with the rotation of the multi-faceted block 25. Multiple sets of rotating plates 26 are rotatably mounted on the multi-faceted block 25 through the mounting groove 251. Multiple mounting grooves 251 are arranged in a ring array on the multi-faceted block 25. The ends of two rotating plates 26 in the same group that are away from the multi-faceted block 25 are rotatably connected to an expansion plate 27. The expansion plate 27 is rotatably connected to the rotating plate 26 through the mounting plate. Multiple sliding grooves 242 for sliding of the expansion plate 27 are provided on the mounting ring block 24.

[0067] The cylinder 21 moves the multi-faceted block 25 through its output end, causing multiple sets of rotating plates 26 to rotate, thereby expanding or contracting multiple expansion plates 27 to facilitate the clamping and installation of straight bevel gears.

[0068] like Figure 10 As shown, each expansion plate 27 is fixed with an arc plate 29, and a connecting piece 291 is fixed between two adjacent arc plates 29. During the expansion or contraction of the two adjacent expansion plates 27 with the connected arc plates 29, the connecting piece 291 between the two arc plates 29 can also be extended or shortened. A frustum block 28 that contacts the inner surface of the multiple arc plates 29 is fixed on the multifaceted block 25 by a mounting rod. The frustum block 28 is made of silicone.

[0069] During the expansion of the multiple arc plates 29, the multi-faceted block 25 moves upward, along with the frustum block 28, so that the frustum block 28 contacts the inner surface of the multiple arc plates 29. With the help of the telescopic connecting piece 291, the assembly hole of the straight bevel gear can be blocked to prevent flying debris from splashing and adhering to the inner wall of the assembly hole, thus avoiding errors in the gear assembly process and affecting the assembly accuracy of the gear.

[0070] Working principle: During use, the output end of cylinder 21 lowers the multi-faceted block 25, and then the multiple sets of rotating plates 26 rotate, causing the multiple expansion plates 27 to retract, installing the straight bevel gear mounting hole on the outside of the multiple expansion plates 27. Then, the output end of cylinder 21 raises the multi-faceted block 25, and the multiple sets of rotating plates 26 expand the multiple expansion plates 27 to support and fix the straight bevel gear, preventing it from moving during the grinding process.

[0071] During the expansion of multiple expansion plates 27, the arc plate 29 connected to the expansion plate 27 moves as the expansion plate 27 expands. The arc plate 29 between two adjacent arc plates 29 is stretched, and in conjunction with the rising frustum block 28 that blocks the inner surface of multiple arc plates 29, the assembly hole of the straight bevel gear can be sealed to prevent splashed debris from adhering to the inner wall of the assembly hole.

[0072] Then, the motor 461 is started to rotate the polishing brush 463 to polish the teeth of the straight bevel gear. During the polishing process, the insertion rod 445 at the output end of the cylinder 441 cooperates with the upper limit groove 443 of the fixed block 442 to make the fixed block 442 carry the U-shaped frame 48 to rotate back and forth in an arc on the tooth surface of the straight bevel gear. At the same time, driven by the motor 451, the two cams 454 carry the connected eccentric wheel 453 to move, making the groove block 462 move back and forth. While the U-shaped frame 48 carries the polishing component 46 to rotate, the eccentric moving component 45 drives the polishing component 46 to move back and forth, extending or contracting on the original trajectory of the polishing component 46, so that the polishing component 46 can adapt to the curvature of the bevel gear and polish the tooth tip and tooth root.

[0073] Next, the circular plate 32 at the output end of motor 31 drives the column 34 and the push block 33 to rotate. During the rotation of the column 34, the mating groove 241 is engaged to make the structure on the mounting ring block 24 rotate, thereby causing the bevel gear to rotate at a certain angle. Precise indexing avoids the omission of grinding the bevel gear teeth.

[0074] During the rotation of the push block 33, before the installation ring block 24 rotates, the push rod 47 and the push block 33 cooperate to lift the installation frame 43, thereby separating the grinding component 46 from the tooth surface of the straight bevel gear and preventing scratches on the tooth surface during the rotation of the bevel gear.

[0075] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technology and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. A gear rapid grinding device, comprising an operating box (10) and a base plate (11) fixed on the operating box (10), characterized in that, The base plate (11) is provided with an indexing structure (20), the base plate (11) is provided with a driving structure (30) for driving the indexing structure (20), and the base plate (11) is provided with a grinding component (40). The grinding component (40) includes a mounting block (41) fixed on the base plate (11). The mounting block (41) has a mounting frame (43) slidably mounted on its side via two damping springs (42). A U-shaped frame (48) is rotatably mounted inside the mounting frame (43). A pushing component (44) for driving the U-shaped frame (48) to rotate is provided on the mounting frame (43). A grinding component (46) and an eccentric movable component (45) for driving the grinding component (46) to reciprocate are provided inside the U-shaped frame (48). By pushing component (44) to make U-shaped frame (48) reciprocate in an arc, the movement trajectory of grinding component (46) on U-shaped frame (48) is close to the tooth surface. As the grinding component (46) follows the rotation of U-shaped frame (48), eccentric moving component (45) pushes grinding component (46) to reciprocate.

2. The gear rapid grinding device according to claim 1, characterized in that, The pushing assembly (44) includes a cylinder (441) fixedly mounted on the mounting frame (43) by a bracket. A plug rod (445) is fixed at the output end of the cylinder (441). The pushing assembly (44) also includes a fixing block (442) fixed in the inner cavity of the U-shaped frame (48). A limiting groove (443) adapted to the plug rod (445) is provided on the fixing block (442).

3. The gear rapid grinding device according to claim 1, characterized in that, The polishing assembly (46) includes a groove block (462) slidably installed between the two sides of the inner cavity of the U-shaped frame (48). A motor (461) is fixed on the side of the groove block (462), and a polishing brush (463) located in the inner cavity of the groove block (462) is fixed at the output end of the motor (461).

4. The gear rapid grinding device according to claim 3, characterized in that, The eccentric moving assembly (45) includes a second motor (451) fixedly mounted on a U-shaped frame (48). The output end of the second motor (451) is fixed with a connecting shaft (452). Two symmetrical cams (454) are fixed on the connecting shaft (452). An eccentric wheel (453) that is rotatably connected to the groove block (462) is movably mounted on the outer surface of the two cams (454).

5. A gear rapid grinding device according to claim 4, characterized in that, The U-shaped frame (48) has a cleaning component (49) between two mounting plates on its side. The mounting shaft of the cleaning component (49) is connected to the connecting shaft (452) by a pulley set. The cleaning component (49) rotates in the opposite direction to the polishing brush (463).

6. The gear rapid grinding device according to claim 1, characterized in that, The drive structure (30) includes a motor three (31) fixed on the base plate (11) and a circular plate (32) fixed to the output end of the motor three (31). A push column (34) is fixed on the protrusion of the outer surface of the circular plate (32).

7. A gear rapid grinding device according to claim 6, characterized in that, The outer surface of the circular plate (32) is fixed with a push block (33) by an arc plate. The bottom of the mounting frame (43) is fixed with a push rod (47) that is compatible with the push block (33). The mounting block (41) is fixed with a limiting block (471) that is compatible with the mounting frame (43).

8. The gear rapid grinding device according to claim 1, characterized in that, The indexing structure (20) includes a support ring (23) and an electric push rod (22) fixedly installed on the base plate (11). The support ring (23) is rotatably connected to a mounting ring block (24). The mounting ring block (24) has multiple mating grooves (241) adapted to the push column (34). The mounting ring block (24) has multiple locking holes (221) in a ring array adapted to the output end of the electric push rod (22).

9. A gear rapid grinding device according to claim 8, characterized in that, The indexing structure (20) also includes a second cylinder (21) fixed on the base plate (11). The output end of the second cylinder (21) is rotatably fitted with a multi-faceted block (25). Multiple sets of rotating plates (26) are rotatably mounted on the multi-faceted block (25) through the mounting groove (251). The ends of two rotating plates (26) in the same set that are away from the multi-faceted block (25) are rotatably connected to an expansion plate (27). Multiple sliding grooves (242) for sliding of the expansion plate (27) are provided on the mounting ring block (24).

10. A gear rapid grinding device according to claim 9, characterized in that, Each of the expansion plates (27) is fixed with an arc plate (29), and a connecting piece (291) is fixed between two adjacent arc plates (29). The multi-faceted block (25) is fixed with a frustum block (28) that contacts the inner surface of the multiple arc plates (29) by means of a mounting rod.

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