Chamfering machine for half shaft machining

Abstract

The invention relates to the technical field of half shaft machining equipment, in particular to a chamfering machine for half shaft machining, which comprises a machine body, a chamfering module is arranged on the machine body, a base is detachably mounted on a working table of the machine body, a supporting seat is rotatably connected to the base, two symmetrically distributed fixed push rods are mounted on the base, and the chamfering module is arranged on the machine body. A mounting frame is fixedly connected to the telescopic end of the fixed push rod, an abutting push rod is mounted on the side, away from the supporting base, of the mounting frame, and the telescopic end of the abutting push rod slidably penetrates through the corresponding mounting frame and is coaxially and rotationally connected with a U-shaped piece. When the half shaft is placed, the relative positions of the two U-shaped pieces and the half shaft are adjusted, all threaded holes in the half shaft take the connecting line of the two U-shaped pieces as the symmetry axis, and then the half shaft can be extruded, fixed and overturned through the two U-shaped pieces, so that the steps of re-centering, positioning and clamping after the half shaft is overturned are omitted, the operation steps are reduced, and the production efficiency is improved. The processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of axle machining equipment, and more particularly to a chamfering machine for axle machining. Background Technology

[0002] Chamfering machines, as precision machining equipment, play an important role in many fields such as mold manufacturing, hardware machinery, machine tool manufacturing, hydraulic parts, valve manufacturing, and textile machinery. Their working principle involves using the high-speed rotation or reciprocating motion of a cutting tool to bring it into contact with the edge of the area to be chamfered, using cutting force to remove burrs and form a smooth, uniform chamfer. In the machining of a half-shaft, chamfering is required at both ends of the threaded hole on its flange. During machining, the half-shaft must first be placed on the worktable, ensuring the worktable is supported in the non-threaded hole area of ​​the half-shaft flange to avoid obstructing the threaded hole and facilitate chip removal. After chamfering one end of the threaded hole, the clamp must be released, the workpiece manually rotated 180°, repositioned, aligned with the threaded hole, and clamped again before chamfering the other end can be performed. This process of rotation, re-alignment, and clamping involves many steps and long auxiliary time, resulting in low processing efficiency. Summary of the Invention

[0003] This invention provides a chamfering machine for half-shaft processing, which overcomes the disadvantages of the cumbersome operation and low processing efficiency caused by the need to flip and re-align and clamp half-shafts when chamfering them.

[0004] The technical solution is as follows: A chamfering machine for half-shaft processing includes: a machine body, on which a chamfering module is provided; a base is detachably mounted on the worktable of the machine body; a support seat is rotatably connected to the base; two symmetrically distributed fixed push rods are mounted on the base; the telescopic ends of the fixed push rods are fixedly connected to mounting frames; an abutting push rod is mounted on the side of the mounting frame away from the support seat; the telescopic ends of the abutting push rods slide through the corresponding mounting frames and are coaxially rotatably connected to a U-shaped component; the U-shaped component is used to compress and limit the clamping of the half-shaft flange; a flipping motor is mounted on the mounting frame; an external gear ring is fixedly connected to the U-shaped component; the output shaft of the flipping motor meshes with the corresponding external gear ring through a first gear; and the support seat is used to support the two end faces of the half-shaft flange respectively.

[0005] Furthermore, a connecting post is fixed to both ends of the U-shaped component; a limiting plate is fixed to both ends of the connecting post, and the distance between the two limiting plates is greater than the thickness of the half-shaft flange; a friction strip is fixed to the outer wall of the connecting post, and the friction strip is used to increase the friction between the connecting post and the outer wall of the half-shaft flange.

[0006] Furthermore, the bottom of the support base is coaxially rotatably sleeved on the top of the base, a rotating motor is installed at the top of the base, an internal gear ring is fixedly connected inside the support base, and the output shaft of the rotating motor meshes with the internal gear ring through a second gear for transmission.

[0007] Furthermore, a mounting cylinder is rotatably connected to the top of the base, and an abutment is slidably connected to the upper limit of the mounting cylinder. The abutment is used to abut against the end face of the half-shaft flange. A first elastic element is coaxially fixed between the mounting cylinder and the abutment. The first elastic element is used to push the abutment upward. A mounting ring is provided on the outer wall of the abutment and is slidably connected to the mounting cylinder. Several elastic strips are evenly fixed along the circumference of the mounting ring. A shielding flexible cylinder is fixed to the upper end of several elastic strips. The shielding flexible cylinder is used to deform under the action of several elastic strips and shield the support seat. A weighted ring is fixed to the lower end of the shielding flexible cylinder. The weighted ring is used to keep the shielding flexible cylinder taut. The shielding flexible cylinder and the weighted ring are both located inside the mounting cylinder. The weighted ring is slidably connected to the mounting cylinder. A compression ring is fixed to the outer side of the top of the mounting cylinder. The compression ring is used to guide the elastic strips to bend and deform.

[0008] Furthermore, during the movement of the abutment member along the mounting cylinder, the minimum elastic force of the first elastic member is greater than the force required to deform the elastic strip.

[0009] Furthermore, the upper part of the inner side of the mounting cylinder is provided with an annular arc surface for blocking the sliding of the flexible cylinder.

[0010] Furthermore, a sponge ring is fixed to the upper side of the shielding flexible cylinder. The inner diameter of the sponge ring decreases as it deforms along with the shielding flexible cylinder and is used to clean the flange of the half shaft.

[0011] Furthermore, a second elastic member is coaxially fixed between the abutting member and the mounting ring. A receiving groove is provided on the side of the mounting cylinder, and a locking member is fixedly connected to the lower side of the receiving groove. A protrusion and a limiting part are provided on the side of the locking member away from the central axis of the mounting cylinder. The abutting member is used to squeeze the protrusion and drive the locking member to swing. The limiting part is used to limit the mounting ring.

[0012] Furthermore, a limiting post is provided at the upper part of the receiving groove. The limiting post is located outside the locking member and below the limiting part. The limiting post is used to limit the swing range of the locking member.

[0013] Furthermore, the limiting part is provided with a first inclined surface, which is used for the mounting ring to squeeze and guide the locking member to swing. The upper side of the limiting part and the position where the mounting ring is limited by the limiting part are both provided with a second inclined surface. In the direction from the inside to the outside of the mounting cylinder, the height of the second inclined surface on the limiting part and the mounting ring gradually increases.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: When placing the half shaft, by adjusting the relative positions of the two U-shaped parts and the half shaft, all the threaded holes on the half shaft are made symmetrical about the line connecting the two U-shaped parts. The two U-shaped parts can be used to squeeze, fix and flip the half shaft, thus saving the operation steps of re-aligning and clamping the half shaft after flipping, and improving processing efficiency.

[0015] During the upward movement of the half-shaft, the elastic strip can swing and unfold the shielding flexible tube. The shielding flexible tube is used to shield the support seat, preventing the debris adhering to the half-shaft from falling onto the support seat when the half-shaft is flipped, thus affecting the fit between the half-shaft and the support seat and ensuring the horizontality of the half-shaft during the chamfering process.

[0016] The mounting ring is limited by the locking component, and the sponge ring begins to retract after contacting the flange end face of the half shaft. The sponge ring is used to clean the debris adhering to the flange end face of the half shaft, keeping the contact position between the half shaft flange and the support seat clean. This ensures the levelness and stability of the half shaft during chamfering, thereby ensuring the effect of chamfering the half shaft. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the base and support of the present invention; Figure 3 This is a three-dimensional structural diagram of the U-shaped component and the mounting cylinder of the present invention; Figure 4 This is a three-dimensional structural diagram of the U-shaped component and friction strip of the present invention; Figure 5 This is a three-dimensional structural diagram of the mounting cylinder and mounting ring of the present invention; Figure 6 A three-dimensional structural cross-sectional view of the mounting ring and shielding flexible cylinder of the present invention; Figure 7 This is a three-dimensional structural cross-sectional view of the mounting cylinder and the contact element of the present invention; Figure 8 This is a three-dimensional structural diagram of the elastic strip and locking element of the present invention; Figure 9 This is a three-dimensional structural diagram of the elastic strip and the shielding flexible cylinder under deformation state of the present invention.

[0018] Reference numerals: 1. Body; 2. Base; 3. Support base; 4. Fixed push rod; 5. Mounting frame; 6. Abutting push rod; 7. U-shaped part; 8. Tilting motor; 9. External gear ring; 10. Friction strip; 11. Rotating motor; 12. Internal gear ring; 13. Mounting cylinder; 14. Abutting part; 15. First elastic element; 16. Mounting ring; 17. Elastic strip; 18. Second elastic element; 19. Shielding flexible cylinder; 20. Weight ring; 21. Compression ring; 22. Sponge ring; 23. Locking part; 231. Protrusion; 232. Limiting part. Detailed Implementation

[0019] To make the above features and advantages of the present invention more readily understood, specific embodiments are described below in conjunction with the accompanying drawings, but the present invention is not limited thereto.

[0020] Example 1 This embodiment provides a chamfering machine for half-shaft processing, which solves the problem that when chamfering half-shafts, it is necessary to flip them over and readjust and clamp them again, which is cumbersome and has low processing efficiency.

[0021] See Figures 1 to 4 A chamfering machine for half-shaft machining includes: a machine body 1, on which a chamfering module is provided (the chamfering module is an existing structure and is not shown in the attached drawings); a base 2 is detachably mounted on the worktable of the machine body 1, and a support seat 3 is rotatably connected to the base 2. The support seat 3 is used to support the two end faces of the half-shaft flange respectively. Multiple radial grooves are evenly distributed on the upper circumference of the support seat 3, and the number of grooves corresponds to the number of threaded holes on the half-shaft flange, facilitating the discharge of debris from the threaded holes on the half-shaft flange; a cylindrical blind hole is provided in the middle of the base 2, and a through groove is provided at the lower end of the cylindrical blind hole to communicate with the outside; a through hole is provided in the middle of the support seat 3 to communicate with the cylindrical blind hole. The cylindrical blind hole and through groove of the base 2, and the through hole of the support seat 3, are all used to allow debris entering the middle of the base 2 and the support seat 3 to be discharged; the base 2 Two symmetrically distributed vertical fixed push rods 4 are installed on the top. The fixed push rods 4 can be electric push rods. The telescopic end of the fixed push rod 4 is fixedly connected to the mounting frame 5. The side of the mounting frame 5 away from the support base 3 is equipped with an abutment push rod 6. The telescopic end of the abutment push rod 6 passes through the adjacent mounting frame 5 and is slidably connected to the adjacent mounting frame 5. The telescopic end of the abutment push rod 6 is rotatably connected to a U-shaped piece 7. Both ends of the U-shaped piece 7 are fixedly connected to connecting columns. The upper and lower ends of the connecting columns are fixedly connected to limit plates. The distance between the two limit plates is greater than the thickness of the half-shaft flange so that the limit plates can press down on the end face of the half-shaft flange. The U-shaped piece 7 is used to press the half-shaft flange and limit it. A flip motor 8 is installed on the mounting frame 5. An external gear ring 9 is fixedly connected to the U-shaped piece 7. The output shaft of the flip motor 8 is driven by meshing with the adjacent external gear ring 9 through the first gear.

[0022] When placing the half shaft, by adjusting the relative positions of the two U-shaped parts 7 and the half shaft, all the threaded holes on the half shaft are made symmetrical about the line connecting the two U-shaped parts 7. The two U-shaped parts 7 can be used to squeeze, fix and flip the half shaft, thus saving the operation steps of re-aligning and clamping the half shaft after flipping, and improving processing efficiency.

[0023] See Figure 3 The bottom of the support base 3 is coaxially rotatably sleeved on the top of the base 2. The top of the base 2 is equipped with a rotating motor 11. An internal gear ring 12 is fixed inside the support base 3. The output shaft of the rotating motor 11 is driven by meshing with the internal gear ring 12 through a second gear.

[0024] During use, the rotation of the support base 3 is controlled by the rotating motor 11 and the internal gear ring 12. After the U-shaped part 7 drives the half shaft to rotate 180°, it can ensure that the groove on the support base 3 corresponds to the threaded hole of the half shaft.

[0025] See Figure 4 Friction strips 10 are fixed to the outer walls of the two connecting columns on the U-shaped part 7. The friction strips 10 are made of elastic rubber and are used to increase the friction between the connecting columns and the outer wall of the half-shaft flange, thereby improving the stability of the two U-shaped parts 7 during the clamping and moving of the half-shaft.

[0026] Half-shaft chamfering process: Place the half-shaft on the upper side of the support base 3 and adjust its position so that the half-shaft and the support base 3 are approximately coaxial. Then, align the threaded holes of the half-shaft with the grooves of the support base 3 one by one. Adjust the vertical position of the U-shaped parts 7 by fixing the push rod 4 so that the U-shaped parts 7 correspond to the flange of the half-shaft. Control the two U-shaped parts 7 to move closer to each other by the abutting push rod 6 so that all four friction strips 10 contact the outer wall of the half-shaft flange and push the half-shaft together to accurately adjust the position of the half-shaft so that the half-shaft and the support base 3 are coaxial. Control the two U-shaped parts 7 to move down by fixing the push rod 4. The U-shaped parts 7 press down on the end face of the half-shaft flange through the upper limiting plate to fix the half-shaft on the top plane of the support base 3. Control the chamfering module in the machine body 1 to operate and start chamfering the threaded holes on the half-shaft.

[0027] After chamfering is completed, the two U-shaped parts 7 are moved closer to each other by the abutting push rod 6, increasing the squeezing force of the friction strip 10 on the half shaft, thereby increasing the friction between the friction strip 10 and the half shaft flange. Then, the U-shaped parts 7 are moved upward by the fixing push rod 4, so that the half shaft is separated from the support seat 3 and the flipping motor 8 is controlled to make the U-shaped parts 7 drive the half shaft to flip 180°. Then, the half shaft is placed back on the top of the support seat 3, and the two U-shaped parts 7 are moved away from each other by the abutting push rod 6, reducing the squeezing force of the friction strip 10 on the half shaft. Then, the U-shaped parts 7 are moved downward by the fixing push rod 4, and the half shaft is squeezed and fixed on the support seat 3 by the limiting plates of the two U-shaped parts 7.

[0028] Example 2 This embodiment is a further optimization based on embodiment 1, in order to prevent debris adhering to the half shaft from falling onto the top plane of the support base 3 and affecting the fit between the half shaft and the support base 3 when the half shaft is flipped.

[0029] See Figure 3 , Figures 5 to 7 and Figure 9 The top of the base 2 is rotatably connected to a mounting cylinder 13, and the mounting cylinder 13 is slidably connected to an abutment member 14 at its upper limit; such as Figure 7 As shown, the contact member 14 consists of an inner ring, an outer ring, a connecting rod, and a vertical rod. The vertical rod of the contact member 14 is used to abut against the end face of the half-shaft flange.

[0030] A first elastic element 15 is coaxially fixed between the mounting cylinder 13 and the contact element 14. The first elastic element 15 is a spring with initial force storage. When the vertical rod of the contact element 14 abuts against the end face of the half-shaft flange, the first elastic element 15 is in a compressed state. When the half-shaft flange moves upward, the first elastic element 15 gradually resets and pushes the contact element 14 upward. The outer wall of the contact element 14 is provided with a mounting ring 16 that is slidably connected to the mounting cylinder 13. Several elastic strips 17 are evenly fixed along the circumference of the mounting ring 16. An arc groove is provided at the position where the elastic strips 17 connect with the mounting ring 16. The arc groove is a U-shaped groove. The groove depth is half the length of the arc groove, which is used to concentrate stress and guide the elastic strips 17 to bend at the arc groove. All the upper ends of the elastic strips 17 are fixedly connected to a shielding flexible cylinder 19, which is used to shield the support base 3 and receive and guide debris. The shielding flexible cylinder 19 is initially in a wrinkled state, which is not shown in detail in the attached figure. The upper part of the inner side of the mounting cylinder 13 is provided with an annular arc surface for shielding the sliding of the flexible cylinder 19. The lower end of the shielding flexible cylinder 19 is fixedly connected to a heavy ring 20, which is used to keep the shielding flexible cylinder 19 taut. The shielding flexible cylinder 19 and the heavy ring 20 are both located inside the mounting cylinder 13. The heavy ring 20 is slidably connected to the mounting cylinder 13. The top outer side of the mounting cylinder 13 is fixedly connected to a compression ring 21, which is used to guide the bending deformation of the elastic strips 17. During the movement of the contact member 14 along the mounting cylinder 13, the minimum elastic force of the first elastic member 15 is greater than the force required to deform the elastic strip 17, so that the mounting ring 16 can drive the elastic strip 17 to move and deform under the elastic force of the first elastic member 15.

[0031] During the upward movement of the half shaft, this embodiment swings the elastic strip 17 and unfolds the shielding flexible cylinder 19 to shield the support base 3, thereby preventing debris adhering to the half shaft from falling onto the support base 3 when the half shaft is flipped, thus affecting the fit between the half shaft flange and the support base 3 and ensuring the horizontality of the half shaft during the chamfering process.

[0032] It should be noted that in this embodiment, the arrangement relationship between the contact member 14 and the mounting ring 16 can be regarded as a fixed connection.

[0033] The process of using the shielding flexible cylinder 19 to shield the support base 3 is as follows: Repeat the steps of embodiment 1. During the upward movement of the half shaft, the abutment 14 abuts against the half shaft flange under the elastic force of the first elastic element 15 and moves together. The abutment 14 drives the mounting ring 16 and the elastic strip 17 to move upward together. The elastic strip 17 is squeezed by the compression ring 21 and swings, causing the upper part of the elastic strip 17 to swing away from the mounting cylinder 13. During the swing, the elastic strip 17 pulls the shielding flexible cylinder 19 to move. At the same time, the shielding flexible cylinder 19 pulls the heavy ring 20 upward, causing the shielding flexible cylinder 19 to unfold and gradually shield the support base 3. As the half shaft moves upward, the abutment 14... As the mounting ring 16 gradually moves upward to its limit position, the projection of the support base 3 on the horizontal plane is completely within the projection of the shielding flexible cylinder 19 on the horizontal plane. Then, the half shaft continues to move upward and begins to rotate. During the rotation of the half shaft, the debris adhering to the surface of the half shaft falls to the upper side of the shielding flexible cylinder 19. After rotating 180°, the half shaft begins to move downward and abuts against the contact member 14, causing the contact member 14 to move downward and retract the shielding flexible cylinder 19 into the mounting cylinder 13. As the shielding flexible cylinder 19 enters the support base 3, the debris falls through the through hole of the support base 3 into the cylindrical blind hole of the base 2. Then, the debris in the base 2 is discharged to the outside of the base 2 through the through groove.

[0034] Example 3 This embodiment is a further optimization based on embodiment 2, in order to prevent debris adhering to the surface of the half shaft from affecting the fit between the half shaft and the support 3, and to ensure the levelness and stability of the half shaft.

[0035] See Figures 5 to 9 A sponge ring 22 is fixedly connected to the upper side of the shielding flexible cylinder 19. The inner diameter of the sponge ring 22 decreases as it deforms along with the shielding flexible cylinder 19 and is used to clean the end face of the half-shaft flange. A second elastic element 18, a tension spring, is coaxially fixed between the contact element 14 and the mounting ring 16. A receiving groove is provided on the side of the mounting cylinder 13, and a locking element 23 is fixedly connected to the lower side of the receiving groove. The locking element 23 is made of elastic metal, and its lower part is thinner than the rest of the part, so as to guide the locking element 23 to swing at its lower end. Figure 8As shown, the locking member 23 has a protrusion 231 and a limiting part 232 on the side away from the central axis of the mounting cylinder 13. The abutment member 14 is used to squeeze the protrusion 231 and drive the locking member 23 to swing. The limiting part 232 is used to limit the mounting ring 16. A limiting post is provided at the upper part of the receiving groove of the mounting cylinder 13. The limiting post is located outside the locking member 23 and below the limiting part 232. The limiting post is used to limit the swing range of the locking member 23. By setting the length of the elastic strip 17 and the relative position of the limiting part 232 and the squeezing ring 21, the half-shaft flange contacts the sponge ring 22 when the abutment member 14 contacts the protrusion 231.

[0036] In this embodiment, the locking member 23 limits the installation ring 16 and controls the sponge ring 22 to start to retract after contacting the end face of the half-shaft flange. In this way, the sponge ring 22 cleans the debris adhering to the end face of the half-shaft flange, keeps the contact position between the half-shaft flange and the support seat 3 clean, ensures the levelness and stability of the half-shaft during chamfering, and thus ensures the effect of chamfering the half-shaft.

[0037] It should be noted that in this embodiment, the contact member 14 and the mounting ring 16 are only in contact initially.

[0038] See Figure 8 The limiting part 232 is provided with a first inclined surface, which is used for the mounting ring 16 to squeeze and guide the locking member 23 to swing. The upper side of the limiting part 232 and the position where the mounting ring 16 is limited by the limiting part 232 are both provided with a second inclined surface. In the direction from the inside to the outside of the mounting cylinder 13, the height of the second inclined surface on the limiting part 232 and the mounting ring 16 gradually increases. By dispersing the squeezing force between the limiting part 232 and the mounting ring 16 through the first inclined surface and the second inclined surface, the limiting part 232 always has a tendency to move to the outside of the mounting cylinder 13, thereby improving the reliability of the limiting part 232 in limiting the mounting ring 16.

[0039] The process of cleaning the surface of the half-shaft flange using the sponge ring 22 is as follows: Repeat the steps of embodiment 2. When the abutment 14 moves upward to its limit position, the lower part of the inner side of the mounting ring 16 passes the limiting part 232. The limiting part 232 limits the mounting ring 16 and prevents it from moving downward, so that the shielding flexible cylinder 19 remains in the unfolded state. When the half-shaft presses the abutment 14 downward, the first elastic element 15 is compressed and the second elastic element 18 is stretched until the abutment 14 contacts the protrusion 231 and the half-shaft flange contacts the sponge ring 22. As the abutment 14 presses against the protrusion 231, the locking element 23 is released from its position. When the lower end swings, the locking member 23 drives the limiting part 232 to move inward to the inside of the mounting cylinder 13 and releases the limiting on the mounting ring 16. At this time, the mounting ring 16 moves down rapidly under the pulling force of the second elastic member 18, causing the elastic strip 17 and the shielding flexible cylinder 19 to quickly retract and drive the sponge ring 22 to quickly retract and move along the end face of the half-shaft flange. During the movement of the sponge ring 22, it carries away the debris adhering to the end face of the half-shaft flange, thereby maintaining the cleanliness of the contact position between the half-shaft flange and the support seat 3. After the shielding flexible cylinder 19 retracts and resets, the half-shaft continues to move down and finally contacts the top of the support seat 3.

[0040] The embodiments described in this specific implementation are 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 chamfering machine for machining half-shafts, comprising a machine body (1), wherein a chamfering module is provided on the machine body (1), characterized in that: A base (2) is detachably mounted on the worktable of the machine body (1). A support seat (3) is rotatably connected to the base (2). Two symmetrically distributed fixed push rods (4) are mounted on the base (2). The telescopic end of the fixed push rod (4) is fixedly connected to a mounting frame (5). An abutting push rod (6) is mounted on the side of the mounting frame (5) away from the support seat (3). The telescopic end of the abutting push rod (6) slides through the corresponding mounting frame (5) and is coaxially rotatably connected to a U-shaped part (7). The U-shaped part (7) is used to squeeze and limit the clamping of the half-shaft flange. A flipping motor (8) is mounted on the mounting frame (5). An external gear ring (9) is fixedly connected to the U-shaped part (7). The output shaft of the flipping motor (8) meshes with the corresponding external gear ring (9) through a first gear. The support seat (3) is used to support the two end faces of the half-shaft flange respectively.

2. The chamfering machine for half-shaft machining according to claim 1, characterized in that, Both ends of the U-shaped part (7) are fixed with connecting columns; both ends of the connecting column are fixed with limiting plates, and the distance between the two limiting plates is greater than the thickness of the half-shaft flange; the outer wall of the connecting column is fixed with a friction strip (10), which is used to increase the friction between the connecting column and the outer wall of the half-shaft flange.

3. A chamfering machine for machining a half-shaft according to claim 1, characterized in that, The bottom of the support base (3) is coaxially rotatably sleeved on the top of the base (2). A rotating motor (11) is installed on the top of the base (2). An internal gear ring (12) is fixed inside the support base (3). The output shaft of the rotating motor (11) meshes with the internal gear ring (12) through a second gear.

4. A chamfering machine for machining a half-shaft according to claim 3, characterized in that, The top of the base (2) is rotatably connected to a mounting cylinder (13). The mounting cylinder (13) is slidably connected to an abutment (14) at its upper limit. The abutment (14) is used to abut against the end face of the half-shaft flange. A first elastic element (15) is coaxially fixed between the mounting cylinder (13) and the abutment (14). The first elastic element (15) is used to push the abutment (14) upward. The outer wall of the abutment (14) is provided with a mounting ring (16) that is slidably connected to the mounting cylinder (13). The mounting ring (16) is evenly fixed with several elastic strips (17) along its circumference. The upper ends of the elastic strips (17) are... A shielding flexible cylinder (19) is fixedly connected to the support base (3) under the action of several elastic strips (17). A heavy ring (20) is fixedly connected to the lower end of the shielding flexible cylinder (19). The heavy ring (20) is used to keep the shielding flexible cylinder (19) taut. The shielding flexible cylinder (19) and the heavy ring (20) are both located inside the mounting cylinder (13). The heavy ring (20) is slidably connected to the mounting cylinder (13). A compression ring (21) is fixedly connected to the outer side of the top end of the mounting cylinder (13). The compression ring (21) is used to guide the elastic strips (17) to bend and deform.

5. A chamfering machine for machining a half-shaft according to claim 4, characterized in that, During the movement of the abutment (14) along the mounting cylinder (13), the minimum elastic force of the first elastic element (15) is greater than the force required to deform the elastic strip (17).

6. A chamfering machine for machining a half-shaft according to claim 4, characterized in that, The upper part of the inner side of the mounting cylinder (13) is provided with an annular arc surface for the sliding of the shielding flexible cylinder (19).

7. A chamfering machine for machining a half-shaft according to claim 4, characterized in that, A sponge ring (22) is fixed to the upper side of the shielding flexible cylinder (19). The inner diameter of the sponge ring (22) decreases as it follows the deformation of the shielding flexible cylinder (19) and is used to clean the flange of the half shaft.

8. A chamfering machine for machining a half-shaft according to claim 4, characterized in that, A second elastic member (18) is coaxially fixed between the abutting member (14) and the mounting ring (16). A receiving groove is provided on the side of the mounting cylinder (13). A locking member (23) is fixed on the lower side of the receiving groove. A protrusion (231) and a limiting part (232) are provided on the side of the locking member (23) away from the central axis of the mounting cylinder (13). The abutting member (14) is used to squeeze the protrusion (231) and drive the locking member (23) to swing. The limiting part (232) is used to limit the mounting ring (16).

9. A chamfering machine for machining a half-shaft according to claim 8, characterized in that, The upper part of the receiving groove is provided with a limiting post, which is located outside the locking member (23) and below the limiting part (232). The limiting post is used to limit the swing range of the locking member (23).

10. A chamfering machine for machining a half-shaft according to claim 8, characterized in that, The limiting part (232) is provided with a first inclined surface, which is used for the mounting ring (16) to squeeze and guide the locking member (23) to swing. The upper side of the limiting part (232) and the position where the mounting ring (16) is limited by the limiting part (232) are both provided with a second inclined surface. In the direction from the inside to the outside of the mounting cylinder (13), the height of the second inclined surface on the limiting part (232) and the mounting ring (16) gradually increases.

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