A device for chamfering a face gear

Abstract

The application relates to the field of face gear machining, in particular to a face gear chamfering device, which comprises a base, a rotary cutting structure is installed on the base, a driving motor is arranged on one side of the rotary cutting structure, a placing groove is formed in the base, the driving motor is fixedly installed in the placing groove, a fixed tray is rotationally connected to the placing groove, and a limiting column is fixedly installed at the middle position of the fixed tray. The multiple locking columns are simultaneously extruded to the inner tooth grooves of the face gear by the pushing of the pushing piece, meanwhile, the output shaft of the driving motor drives the connecting cylinder to slowly rotate through the speed reducer, the locking columns can enter the grooves of the face gear by the extension of the locking columns, the equipment can be quickly fixed and the face gear can be positioned by the cooperation of the locking columns and the driving motor, the operation efficiency of the equipment is greatly improved while the face gear can be accurately positioned.

Description

Technical Field

[0001] This invention relates to the field of end face gear processing, specifically to an end face gear chamfering processing device. Background Technology

[0002] Gear chamfering is a crucial step in gear manufacturing, primarily aimed at removing burrs from gear tooth ends, preventing stress concentration, and optimizing gear assembly performance. This process typically involves precise cutting or grinding of the gear's tooth tips, roots, and edges using specialized equipment or specific cutting tools. Equipment for gear chamfering can be broadly categorized into two types: multi-axis machine tools, which directly cut and grind gears using their equipped cutting tools; and rotary tools, which consist of a vertically moving cutting tool and a rotating mechanism that drives the gear. Manufacturers choose between these two types based on their specific production needs and processing requirements. However, when using the second type of machine tool for gear chamfering, the end-face gear must first be clamped. When placing the end-face gear onto the rotating mechanism, the operator must carefully adjust its relative position to ensure the initial position of the cutting tool is perfectly aligned with the initial position of the gear to be machined. This step is critical for ensuring machining accuracy. After the adjustment is completed, the end face gear is fixed to ensure that it will not shift during the machining process. Although this method can effectively ensure the machining accuracy of the end face gear, it inevitably reduces the overall machining efficiency of the end face gear by requiring additional time and effort for position adjustment and fixing.

[0003] To address this, a device for chamfering the end face of gears is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a face gear chamfering processing device to solve the problem that the overall processing efficiency of face gears inevitably decreases when the relative position of the face gears is carefully adjusted to ensure processing accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A face gear chamfering processing device includes a base, on which a rotary cutting structure is mounted. A drive motor is provided on one side of the rotary cutting structure. A placement groove is provided on the base, and the drive motor is fixedly installed in the placement groove. A fixed tray is rotatably connected to the placement groove. A limit post is fixedly installed at the middle position of the fixed tray. A through hole is provided on the limit post, and a connecting cylinder is rotatably connected in the through hole. The output shaft of the drive motor is connected to the bottom of the connecting cylinder through a reduction gear. A plurality of inclined mounting holes are provided on the connecting cylinder. The plurality of mounting holes are evenly distributed in a circumferential shape on the side wall of the connecting cylinder, and the central axis of the plurality of mounting holes passes through the central axis of the connecting cylinder. A plurality of locking posts are slidably connected in the mounting holes. A pusher connected to the locking posts is installed in the connecting cylinder. The pusher pushes the plurality of locking posts to extend simultaneously and squeeze the internal tooth groove of the face gear.

[0006] In the chamfering technology of end-face gears, traditional processing equipment requires operators or calibration devices to fix the end-face gears. Inaccurate fixing can lead to damage to the parts during chamfering, and precise positioning requires preparation time, reducing processing efficiency. Specifically, some devices require clamps and positioning mechanisms to fix the end-face gears, increasing cost and floor space while reducing processing efficiency. The structure described in this invention fixes the end-face gears while ensuring they are in the pre-set position before processing. Specifically, the end-face gear to be processed is placed on a fixed tray. A pusher pushes multiple locking pins to extend and press against the internal tooth grooves of the end-face gear. Simultaneously, the output shaft of the drive motor drives a connecting cylinder to rotate slowly through a reduction gear. This, combined with the extension of the locking pins, allows them to enter the grooves of the end-face gear. The drive motor then moves the gear to the designated position. The cooperation between the locking pins and the drive motor enables the equipment to quickly fix and position the end-face gear, significantly improving operating efficiency while ensuring precise positioning.

[0007] Preferably, the pushing component includes a sliding column slidably connected within the connecting cylinder, a hydraulic telescopic rod fixedly installed at the bottom of the placement groove, a rotating block rotatably connected to the movable end of the hydraulic telescopic rod, a sliding groove formed at the bottom of the sliding column, the rotating block slidably connected within the sliding groove, a compression spring provided within the sliding groove, the two ends of the compression spring being fixedly installed to the inner wall of the sliding groove and the rotating block respectively, an inclined surface provided on the sliding column, the inclined surface being positioned below the locking column, a first groove formed at one end of the locking column, a first ball rotatably connected within the first groove, the first ball abutting against the inclined surface, and the axis of rotation of the first ball being perpendicular to the central axis of the sliding column.

[0008] It should be noted that the sliding column has a raised limit key, and the connecting cylinder has a keyway for the limit key to slide. The limit key and keyway design restrict the sliding column to vertical movement. In actual use, when the hydraulic telescopic rod extends or retracts, it drives the rotating block to slide within the sliding groove at the bottom of the sliding column. A compression spring within the sliding groove pushes the sliding column, providing displacement and compensation. As the sliding column continues to move upwards, its inclined surface abuts against the first ball bearing in the first groove at one end of the locking column. With further upward movement, the inclined surface presses against the first ball bearing, causing the locking column to slide within the mounting hole. This allows multiple locking columns to simultaneously extend and press against the inner tooth groove of the end gear for fixation. Alternatively, the sliding column can move downwards, causing the first ball bearing away from the inclined surface to retract and release the fixation of the end gear. Through the cooperation of the locking columns and the drive motor, the equipment can quickly fix and position the end gear simultaneously, significantly improving operating efficiency while ensuring precise positioning of the end gear.

[0009] Preferably, the other end of the locking post is also provided with a second groove, and a second ball is rolled in the second groove. The axis of rotation of the second ball is parallel to the central axis of the sliding post. The locking post is composed of two metal cylinders and a rubber pad. The two metal cylinders are coaxially fixed on both sides of the rubber pad.

[0010] The second ball bearing allows the locking pin to slide more smoothly when it comes into contact with the inner tooth groove of the end face gear, reducing frictional resistance. The second ball bearing also allows the locking pin to more easily enter the gear teeth, ensuring precise positioning by the drive motor. The locking pin structure, composed of two metal cylinders and a rubber pad, provides strength and rigidity, allowing it to withstand significant pressure without deformation. The rubber pad acts as a buffer and compensation, effectively absorbing some of the impact force when the locking pin is pressed against the inner tooth groove of the end face gear, preventing damage to the end face gear due to rigid collision. Simultaneously, the rubber pad allows the metal cylinder on one side to move to a certain extent under the push of the metal cylinder on the other side, making it easier for the locking pin to enter the gear teeth and improving the stability and operating efficiency of the entire chamfering device.

[0011] Preferably, the side wall of the connecting cylinder is provided with multiple rectangular grooves, each of which is slidably connected to a push block. A hinge seat is fixedly installed at the relative position of the push block and the sliding column. A connecting rod is hinged between two corresponding hinge seats, and the connecting rod is inclined downward as a whole.

[0012] During the chamfering process of the end face gear, when the hydraulic telescopic rod extends or retracts, it drives the rotating block to slide in the sliding groove of the lower column, thereby compressing the compression spring. The rectangular groove on the side wall of the connecting cylinder and the push block slidably connected therein are connected to the lower column through the hinge seat and connecting rod. When the lower column moves, it drives the push block to slide in the rectangular groove through the connecting rod. The movement of the push block further fixes the gear. It should be noted that the lower column needs to move a certain distance before it can push the push block on one side to move through the connecting rod and press against the inner wall of the gear for fixation. This avoids fixing the gear before the relative position of the gear is adjusted. This linkage design makes the structure of the entire push component more stable and can more accurately control the movement of the locking column, thereby better meeting the requirements of end face gear chamfering.

[0013] Preferably, the connecting cylinder has multiple locking slots, and an upper locking block and a lower locking block are slidably connected in the locking slots respectively. The upper locking block is fixedly installed with a metal cylinder on which a second ball bearing is installed, and the lower locking block is fixedly installed with a pushing block. When the locking pin and the pushing block are in the initial state, the upper locking block is located to the left of the lower locking block. When the locking pin and the pushing block are in the locked state, the upper locking block is located above the lower locking block.

[0014] In practical use, when the locking pin and the pushing block are in their initial state, the upper locking block is located to the left of the lower locking block. At this time, the workpiece is in an adjustable or not fully fixed state. Because the upper locking block is located to the left of the lower locking block, the lower locking block must wait for the upper locking block to move to one side before it can continue to move. The upper locking block is connected to one side of the metal cylinder of the locking pin. Since the metal cylinder is a rigid structure, the locking pin will only move the upper locking block to the left when the second ball on the locking pin enters the gear teeth, ensuring that the upper locking block and the connected pushing block can move smoothly outward. When the locking pin is engaged, the upper locking block will move to the left. When the column and the push block are locked, the upper locking block is positioned above the lower locking block. At this time, the lower locking block limits the upper locking block, preventing the locking column from moving due to the intermediate rubber gasket. The locking groove consists of a groove and a cover plate fixedly installed on the groove. The groove is first opened on the connecting cylinder by the processing equipment, and then the corresponding cover plate is glued or welded on with a specific adhesive. Through this change in position, the workpiece can be positioned and fixed more stably and accurately, which greatly improves the accuracy and stability of the end face gear chamfering process, reduces the error and defect rate in the processing process, and improves the overall processing efficiency and product quality.

[0015] Preferably, the surface of the push block has two symmetrically arranged planar grooves, which are located on both sides of the push block. A rubber block is fixedly installed in the planar groove, and the rubber block has a plurality of evenly arranged protrusions.

[0016] When the pusher block fixes the gear, the protruding part of the pusher block will first abut against the inner wall of the gear. However, gears of the same specifications will have certain errors in precision during processing. The rubber block itself has a certain elasticity and can deform under external pressure. This can not only adapt to workpieces of different shapes and sizes, but also, through the set protrusions, make the gear encounter greater resistance when rotating in the opposite direction. This avoids the torsional force generated by the cutting equipment when the connecting cylinder drives the gear to rotate, which would interfere with the normal rotation of the gear. It guides the gear to move according to the predetermined motion trajectory, improves the stability and reliability of the entire end face gear chamfering processing device, and further ensures the processing accuracy.

[0017] Preferably, both the upper locking block and the lower locking block have striped patterns on their sides, and the direction of the two striped patterns is perpendicular to the moving direction of the pushing block, and the two striped patterns on the upper locking block and the lower locking block cooperate with each other.

[0018] This design further enhances the friction between the upper and lower locking blocks. During operation, when the upper locking block fails to engage with the gear teeth due to the locking pin, it remains in its original position. At this point, the lower locking block also cannot move. However, when the pushing block moves and forcibly pushes the upper locking block through the lower locking block, the moving upper locking block causes the locking pin to move and block the position of the locking teeth. This results in the first ball being forcibly squeezed onto the locking teeth and unable to engage with the gear teeth. Therefore, by providing striped patterns on the sides of both the upper and lower locking blocks, the lower locking block cannot push the upper locking block to move. Since the upper locking block needs to move upwards during its movement, the striped patterns fit together, preventing the upper locking block from moving. This ensures the stability and reliability of the locking and unlocking actions, avoids device malfunctions due to component slippage, and improves the working accuracy and stability of the entire end face gear chamfering processing device.

[0019] Preferably, the fixed tray has an installation groove, and a base is fixedly installed at the bottom of the limiting post. The base is placed in the installation groove and fixed with screws.

[0020] This design allows the locating pin to be securely mounted on the fixed tray. During the chamfering process of the end face gear, the locating pin effectively limits the gear, preventing it from shifting during machining and ensuring machining accuracy and quality. Furthermore, the screw-fixing method not only facilitates installation and disassembly, making maintenance and replacement of the locating pin easy, but also ensures that the locating pin will not loosen and affect its limiting function during long-term use. Different specifications and models of locating pins can also be used when producing gear parts of different sizes.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The pusher pushes multiple locking pins to extend simultaneously and press against the inner tooth groove of the end face gear. At the same time, the output shaft of the drive motor drives the connecting cylinder to rotate slowly through the reduction gear. With the extension of the locking pins, the locking pins can enter the groove of the end face gear. Through the cooperation of the locking pins and the drive motor, the equipment can be quickly fixed and the end face gear can be positioned. While ensuring that the end face gear can be accurately positioned, the operating efficiency of the equipment is greatly improved.

[0022] 2. The sliding column drives the inclined surface to squeeze the first ball, and the first ball drives the locking column to slide in the mounting hole, thereby realizing that multiple locking columns extend at the same time to squeeze and fix the inner tooth groove of the end face gear. Alternatively, the sliding column moves downward, causing the first ball away from the inclined surface to retract and release the fixation of the end face gear. Through the cooperation of the locking column and the drive motor, the equipment can quickly and accurately position the end face gear.

[0023] 3. When the sliding column moves, it will drive the push block to slide in the rectangular groove through the connecting rod. The movement of the push block further fixes the gear. At the same time, the sliding column needs to move a certain distance before it can abut against the inner wall of the gear for fixation. This avoids fixing the gear before the relative position of the gear is adjusted. This linkage design makes the structure of the entire push component more stable and can more accurately control the movement of the locking column, thereby better meeting the needs of end face gear chamfering. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the fixed tray in this invention; Figure 3 This is a schematic diagram of the internal structure of the sliding column in this invention; Figure 4 This is a schematic diagram of the internal structure of the connecting cylinder in this invention; Figure 5 for Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the upward movement state of the sliding column in this invention; Figure 7 for Figure 4 Schematic diagram of the cross-sectional structure at point BB; Figure 8 This is a schematic diagram of the structure of the push block in this invention.

[0025] In the diagram: 1. Base; 2. Placement slot; 3. Fixed tray; 4. Mounting slot; 5. Chassis; 6. Limiting post; 7. Connecting cylinder; 8. Second ball bearing; 9. Pushing block; 10. Hydraulic telescopic rod; 11. Drive motor; 12. Sliding column; 13. Inclined surface; 14. Sliding groove; 15. Rotating block; 16. Compression spring; 17. Locking post; 171. Metal cylinder; 172. Rubber pad; 18. First ball bearing; 19. Flat groove; 20. Upper locking block; 21. Lower locking block; 22. Striped pattern; 23. Connecting rod; 24. Rubber block; 25. Rectangular groove; 26. Locking groove; 27. Hinge seat. Detailed Implementation

[0026] Please see Figures 1 to 7 This invention provides a device for chamfering the end face of gears, the technical solution of which is as follows: A face gear chamfering processing device includes a base 1, on which a rotary cutting structure is mounted. A drive motor 11 is located on one side of the rotary cutting structure. The device is characterized by having a placement groove 2 on the base 1, with the drive motor 11 fixedly mounted within the groove 2. A fixed tray 3 is rotatably connected to the groove 2. A limiting post 6 is fixedly mounted at the center of the fixed tray 3. A through hole is formed in the limiting post 6, and a connecting cylinder 7 is rotatably connected within the through hole. The output shaft of the drive motor 11 is connected to the bottom of the connecting cylinder 7 via a reduction gear. Multiple inclined mounting holes are evenly distributed circumferentially on the sidewall of the connecting cylinder 7, with the central axis of each hole passing through the central axis of the connecting cylinder 7. Multiple locking posts 17 are slidably connected within the mounting holes. A pushing member connected to the locking posts 17 is installed inside the connecting cylinder 7, pushing the locking posts 17 to extend simultaneously and press against the internal tooth groove of the face gear. A mounting groove 4 is formed on the fixed tray 3, and a base plate 5 is fixedly mounted at the bottom of the limiting post 6. The base plate 5 is placed within the mounting groove 4 and secured with screws.

[0027] The pushing component includes a sliding column 12 slidably connected inside the connecting cylinder 7. A hydraulic telescopic rod 10 is fixedly installed at the bottom of the placement groove 2. A rotating block 15 is rotatably connected to the movable end of the hydraulic telescopic rod 10. A sliding groove 14 is provided at the bottom of the sliding column 12. The rotating block 15 is slidably connected inside the sliding groove 14. A compression spring 16 is provided inside the sliding groove 14. The two ends of the compression spring 16 are fixedly installed to the inner wall of the sliding groove 14 and the rotating block 15, respectively. An inclined surface 13 is provided on the sliding column 12. The inclined surface 13 is located below the locking column 17. A first groove is provided at one end of the locking column 17. A first ball bearing 18 is rotatably connected inside the first groove. The first ball bearing 18 abuts against the inclined surface 13. The axis of rotation of the first ball bearing 18 is perpendicular to the central axis of the sliding column 12.

[0028] The other end of the locking post 17 is also provided with a second groove, in which a second ball bearing 8 is rolled. The axis of rotation of the second ball bearing 8 is parallel to the central axis of the sliding post 12. The locking post 17 is composed of two metal cylinders 171 and a rubber pad 172. The two metal cylinders 171 are coaxially fixed on both sides of the rubber pad 172.

[0029] Multiple rectangular slots 25 are formed on the side wall of the connecting cylinder 7. Push blocks 9 are slidably connected in each rectangular slot 25. Hinges 27 are fixedly installed at the relative positions of the push blocks 9 and the sliding column 12. A connecting rod 23 is hinged between two corresponding hinges 27. The connecting rod 23 is inclined downward as a whole. Two symmetrically arranged planar slots 19 are formed on the surface of the push block 9. The planar slots 19 are located on both sides of the push block 9. Rubber blocks 24 are fixedly installed in the planar slots 19. Multiple evenly arranged protrusions are formed on the rubber blocks 24.

[0030] The connecting cylinder 7 has multiple locking slots 26, and an upper locking block 20 and a lower locking block 21 are slidably connected in the locking slots 26 respectively. The upper locking block 20 is fixedly installed with a metal cylinder 171 on which the second ball bearing 8 is installed, and the lower locking block 21 is fixedly installed with a push block 9. When the locking cylinder 17 and the push block 9 are in the initial state, the upper locking block 20 is located to the left of the lower locking block 21. When the locking cylinder 17 and the push block 9 are in the locked state, the upper locking block 20 is located above the lower locking block 21.

[0031] Both the upper locking block 20 and the lower locking block 21 have striped patterns 22 on their sides. The direction of the two striped patterns 22 is perpendicular to the moving direction of the push block 9, and the two striped patterns 22 on the upper locking block 20 and the lower locking block 21 cooperate with each other.

[0032] In practical use, the end face gear to be processed is placed on the fixed tray 3. When the hydraulic telescopic rod 10 extends or retracts, it drives the rotating block 15 to slide in the sliding groove 14 at the bottom of the sliding column 12. Since the sliding groove 14 is equipped with a compression spring 16, the compression spring 16 pushes the sliding column 12 to move, giving the sliding column 12 a certain displacement and compensation amount. The sliding column 12 continues to move upward, and the inclined surface 13 on the moving sliding column 12 abuts against the first ball 18 in the first groove at one end of the locking column 17. As the sliding column 12 continues to move upward, the inclined surface 13 will squeeze the first ball 18, so the first ball 18 drives the locking column 17 to slide in the mounting hole, thereby realizing that multiple locking columns 17 extend at the same time to squeeze and fix the inner tooth groove of the end face gear. At this time, the drive motor 11 drives the connecting cylinder 7 to rotate through the reduction gear. The rotating connecting cylinder 7 drives the locking column 17 to enter the tooth gap of the end face gear. Through the cooperation of the locking column 17 and the drive motor 11, the equipment can quickly fix and position the end face gear at the same time.

[0033] The second ball bearing 8 allows the locking pin 17 to slide more smoothly when it comes into contact with the inner tooth groove of the end face gear, reducing frictional resistance. The second ball bearing 8 also allows the locking pin 17 to enter the gear teeth more easily, ensuring that the drive motor 11 can be accurately positioned. The locking pin 17 structure, consisting of two metal cylinders 171 and a rubber pad 172, ensures the strength and rigidity of the locking pin 17 by the metal cylinders 171, enabling it to withstand greater compressive force without deformation. The rubber pad 172 acts as a buffer and compensation, effectively absorbing some of the impact force when the locking pin 17 is pressed against the inner tooth groove of the end face gear, preventing damage to the end face gear due to rigid collision. At the same time, the rubber pad 172 allows the metal cylinder 171 on one side to move to a certain extent under the push of the metal cylinder 171 on the other side, making it easier for the locking pin 17 to enter the gear teeth.

[0034] The sliding column 12 continues to move, connected to the hinge seat 27 and the connecting rod 23. When the sliding column 12 moves, it will drive the push block 9 to slide in the rectangular groove 25 through the connecting rod 23. The movement of the push block 9 further fixes the gear. It should be noted that the sliding column 12 needs to move a certain distance before the push block 9 on one side can be moved by the connecting rod 23 to abut against the inner wall of the gear for fixation, so as to avoid the fixation operation before the relative position of the gear is adjusted.

[0035] When the locking pin 17 and the push block 9 are in the initial state, the upper locking block 20 is located to the left of the lower locking block 21. At this time, the workpiece is in an adjustable or not fully fixed state. Because the upper locking block 20 is located to the left of the lower locking block 21, the lower locking block 21 must wait for the upper locking block 20 to move to one side before it can continue to move. The upper locking block 20 is connected to one side of the metal cylinder 171 of the locking pin 17. The metal cylinder 171 is a rigid structure. Therefore, the locking pin 17 will only move the upper locking block 20 to the left when the second ball 8 on the locking pin 17 enters the gear teeth, so as to ensure that the upper locking block 20 and the connected push block 9 can move outward smoothly. When the locking pin 17 and the push block 9 are in the locked state, the upper locking block 20 is located above the lower locking block 21. At this time, the lower locking block 21 limits the upper locking block 20 to prevent the locking pin 17 from moving due to the middle rubber pad 172.

[0036] This design further enhances the friction between the upper locking block 20 and the lower locking block 21. During device operation, when the upper locking block 20 fails to enter the tooth gap due to the locking pin 17, it remains in its original position. At this time, the lower locking block 21 also cannot move. However, when the push block 9 moves and forcibly pushes the upper locking block 20 through the lower locking block 21, the moving upper locking block 20 causes the locking pin 17 to move and abut against the position of the tooth, causing the first ball 18 to be forcibly squeezed onto the tooth and unable to enter the middle of the tooth gap. Therefore, by providing striped patterns 22 on the sides of both the upper locking block 20 and the lower locking block 21, the lower locking block 21 cannot push the upper locking block 20 to move. This is because the upper locking block 20 needs to move upwards during the movement, and the striped patterns 22 fit together, preventing the upper locking block 20 from moving, thus ensuring the stability and reliability of the locking and unlocking actions.

[0037] When the pusher block 9 pushes the gear to fix it, the protruding part of the pusher block 9 will first abut against the inner wall of the gear. However, gears of the same specifications will have certain errors in precision during processing. The rubber block 24 itself has a certain elasticity and can produce a certain deformation when it is squeezed by external force. This can not only adapt to workpieces of different shapes and sizes, but also, through the set protrusion, make the gear encounter a large resistance when rotating in the opposite direction. This avoids the torsional force generated by the cutting equipment when the connecting cylinder 7 drives the gear to rotate, which would interfere with the normal rotation of the gear, and guides the gear to move according to the predetermined motion trajectory.

[0038] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. A gear chamfering processing device, comprising a base, a rotary cutting structure mounted on the base, and a drive motor provided on one side of the rotary cutting structure, characterized in that, The base has a placement slot, and the drive motor is fixedly installed in the placement slot. A fixed tray is rotatably connected to the placement slot. A limit post is fixedly installed in the middle of the fixed tray. A through hole is opened on the limit post, and a connecting cylinder is rotatably connected in the through hole. The output shaft of the drive motor is connected to the bottom of the connecting cylinder through a reduction gear. The connecting cylinder has multiple inclined mounting holes. The multiple mounting holes are evenly distributed in a circular shape on the side wall of the connecting cylinder, and the central axis of the multiple mounting holes passes through the central axis of the connecting cylinder. Multiple locking posts are slidably connected in the mounting holes. A pusher connected to the locking posts is installed in the connecting cylinder. The pusher pushes the multiple locking posts to extend out and squeeze the inner tooth groove of the end face gear. The pushing component includes a sliding column slidably connected inside the connecting cylinder, a hydraulic telescopic rod fixedly installed at the bottom of the placement groove, a rotating block rotatably connected to the movable end of the hydraulic telescopic rod, a sliding groove opened at the bottom of the sliding column, the rotating block slidably connected inside the sliding groove, a compression spring provided inside the sliding groove, the two ends of the compression spring being fixedly installed to the inner wall of the sliding groove and the rotating block respectively, an inclined surface provided on the sliding column, the inclined surface being located below the locking column, a first groove opened at one end of the locking column, a first ball rotatably connected inside the first groove, the first ball abutting against the inclined surface, and the axis of rotation of the first ball being perpendicular to the central axis of the sliding column; The other end of the locking post is also provided with a second groove, in which a second ball is rolled. The axis of rotation of the second ball is parallel to the central axis of the sliding post. The locking post consists of two metal cylinders and a rubber pad. The two metal cylinders are coaxially fixed on both sides of the rubber pad. Multiple rectangular slots are provided on the side wall of the connecting cylinder. Push blocks are slidably connected in each rectangular slot. Hinges are fixedly installed at the relative positions of the push blocks and the sliding column. A connecting rod is hinged between two corresponding hinges, and the connecting rod is inclined downward as a whole.

2. A gear chamfering device according to claim 1, characterized in that, The connecting cylinder has multiple locking slots, in which an upper locking block and a lower locking block are slidably connected. The upper locking block is fixedly installed with a metal cylinder on which a second ball bearing is installed, and the lower locking block is fixedly installed with a push block. When the locking pin and the push block are in the initial state, the upper locking block is located to the left of the lower locking block. When the locking pin and the push block are in the locked state, the upper locking block is located above the lower locking block.

3. A gear chamfering device according to claim 1, characterized in that, Two symmetrically arranged planar grooves are opened on the surface of the push block. The planar grooves are located on both sides of the push block. A rubber block is fixedly installed in the planar groove, and multiple evenly arranged protrusions are opened on the rubber block.

4. A gear chamfering device according to claim 2, characterized in that, Both the upper and lower locking blocks have striped patterns on their sides. The direction of the two striped patterns is perpendicular to the direction of movement of the pushing block, and the two striped patterns on the upper and lower locking blocks cooperate with each other.

5. A gear chamfering device according to claim 1, characterized in that, The fixed tray has an installation groove, and the bottom of the limiting post is fixedly installed with a base plate. The base plate is placed in the installation groove and fixed with screws.

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