A burr removal device for automotive gear processing

By designing a multi-angle deburring automotive gear processing device, the device utilizes moving and steering components to achieve all-round cleaning of gear burrs and convenient brush head replacement. This solves the problems of cleaning dead corners and cumbersome brush head replacement in existing technologies, thereby improving production efficiency.

CN224574802UActive Publication Date: 2026-07-31CHONGQING HONGSHENG GEAR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HONGSHENG GEAR CO LTD
Filing Date
2025-09-08
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing automotive gear processing equipment has blind spots when cleaning burrs, making it difficult to remove them completely. Furthermore, the brush head replacement operation is cumbersome, affecting production efficiency.

Method used

A burr removal device for automotive gear processing was designed. It adopts a multi-angle burr removal method, utilizes three sets of moving components and a steering component to ensure all-round burr removal, and enables convenient replacement of the brush head through a bolt structure.

Benefits of technology

It achieves comprehensive cleaning of gear burrs, simplifies the brush head replacement process, and improves cleaning efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224574802U_ABST
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Abstract

This utility model relates to the field of gear processing technology and discloses a burr removal device for automotive gear processing, including a worktable. A housing and a barrier cover are fixedly installed on the top of the worktable. Three sets of movable components are arranged at 120-degree intervals around the main tooth. Three auxiliary teeth mesh with the main tooth and the internal gear ring, respectively. When the first motor drives the first rotating shaft to rotate, the workpiece teeth rotate synchronously. The main tooth drives the auxiliary teeth to rotate. At the same time, the auxiliary teeth revolve around the main tooth under the meshing action with the internal gear ring. This causes the second rotating shaft to drive the side components to revolve and rotate synchronously, allowing the first wire brush head to clean the tooth grooves of the workpiece teeth from all directions, ensuring that the burrs in the tooth grooves are completely removed. When the first wire brush head needs to be replaced, simply turn the bolt to disengage it from the threaded hole to remove the old brush head and install the new brush head. This makes the operation simple and quick, reducing the difficulty and time cost of equipment maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically to a burr removal device for automotive gear processing. Background Technology

[0002] In automotive gear manufacturing, gears are the core components of the transmission system, and their surface quality and precision directly affect the vehicle's operating performance and service life. During the milling, hobbing, and shaping processes, burrs inevitably form on the tooth grooves, end faces, and inner hole edges. If these burrs are not cleaned in time, they will not only cause difficulties in gear assembly, but also generate debris due to friction and collision during use, which will aggravate gear wear and even cause mechanical failures. Therefore, burr removal is a key process to ensure gear quality.

[0003] Existing cleaning devices typically use a single or symmetrically distributed fixed brush head for cleaning. The brush head's movement trajectory is relatively fixed, making it difficult to cover all areas of the gear groove and easily creating cleaning blind spots. As a result, burrs inside the gear groove cannot be completely removed. At the same time, the brush heads of these devices are mostly fixedly installed. When the brush head wears out and needs to be replaced, multiple parts often need to be disassembled, which is cumbersome and not only increases the difficulty of equipment maintenance but also consumes a lot of time, affecting production efficiency. Therefore, we have introduced a burr cleaning device for gear machining. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a burr removal device for automotive gear processing, which has the advantages of multi-angle burr removal and easy adjustment, disassembly, and removal, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a burr removal device for automotive gear processing, comprising a worktable, a housing and a barrier cover fixedly installed on the top of the worktable, a first motor fixedly installed on the bottom of the worktable, a coupling fixedly sleeved on the outer edge of the output shaft of the first motor, a first rotating shaft fixedly sleeved on the inner wall of the coupling, a placement platform and a main gear fixedly sleeved on the top of the first rotating shaft, a second rotating shaft provided on the top of the worktable, a dovetail groove provided on the outer wall of the second rotating shaft, an internal gear ring fixedly installed on the inner wall of the barrier cover, a workpiece tooth slidably sleeved on the top of the placement platform, a secondary tooth fixedly sleeved on the outer wall of the second rotating shaft, a side assembly provided on the outer wall of the second rotating shaft, and a steering assembly provided on the top of the housing.

[0006] As a preferred technical solution of this utility model: the auxiliary tooth, the second rotating shaft, the dovetail groove and the side assembly are regarded as a set of movable components, and the number of such movable components is three sets, which are respectively set with the main tooth as the center and a distance of 120 degrees. The outer edge teeth of the three auxiliary teeth mesh with the outer edge teeth of the main tooth, and the outer edge teeth on the other side mesh with the outer edge teeth of the internal gear ring.

[0007] As a preferred technical solution of this utility model: the side assembly includes a first wire brush head disposed on the outer wall of the second rotating shaft, a collar is disposed on the top of the first wire brush head, a nut is fixedly installed on the outer wall of the collar, and a bolt is disposed on the outer wall of the collar.

[0008] As a preferred technical solution of this utility model: the inner wall of the first wire brush head is adapted to the shape of the outer wall of the second rotating shaft, the inner wall of the collar is adapted to the shape of the inner wall of the dovetail groove, the outer walls of the collar and the second rotating shaft are both pre-set with threaded holes, and the threaded holes are staggered and engaged with the outer wall of the bolt, the bolt is through the inner wall of the collar and the second rotating shaft, and is staggered and engaged with the inner thread of the nut.

[0009] As a preferred technical solution of this utility model: the steering assembly includes a handle disposed on the outer wall of the housing, a third rotating shaft fixedly sleeved on the inner wall of the handle, a lead screw rotatably connected to the inner wall of the housing, a conical tooth fixedly sleeved on the outer wall of the third rotating shaft, an umbrella-shaped tooth fixedly sleeved on the outer wall of the lead screw, a guide cylinder fixedly installed on the top of the housing, a guide groove and a steering groove respectively opened on the outer wall of the guide cylinder, an end face component provided on the top of the housing, the end face component including a slider disposed in the inner cavity of the guide cylinder, one end of a guide block fixedly connected to the outer wall of the slider, a connecting cylinder fixedly connected to the other end of the guide block, one end of a connecting rod fixedly connected to the outer wall of the connecting cylinder, a support base fixedly mounted on the other end of the connecting rod, a second motor fixedly installed on the top of the support base, an end face wire brush fixedly sleeved on the outer edge of the output shaft of the second motor, and a wire brush with a perforated diameter provided on the inner wall of the end face wire brush.

[0010] As a preferred technical solution of this utility model: the outer edge teeth of the conical teeth are interlocked with the outer edge teeth of the umbrella teeth; the inner wall of the slider is threaded and interlocked with the outer wall thread of the lead screw; the steering groove is located on one side of the top of the guide groove; the outer wall of the guide block is slidably fitted to the inner walls of the steering groove and the guide groove respectively; the cross-section of the end face wire brush is bowl-shaped, and the aperture wire brush is located at the middle of the bowl shape; the diameter of the aperture wire brush is adapted to the inner wall diameter of the workpiece teeth.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This burr removal device for automotive gear processing utilizes three sets of movable components spaced 120 degrees apart around the main tooth. Three auxiliary teeth mesh with the main tooth and the internal gear ring, respectively. When the first motor drives the first rotating shaft to rotate, the workpiece teeth rotate synchronously. The main tooth drives the auxiliary teeth to rotate, and the auxiliary teeth revolve around the main tooth under the meshing action with the internal gear ring. This causes the second rotating shaft to drive the side components to revolve and rotate synchronously, allowing the first wire brush head to clean the tooth grooves of the workpiece teeth from all directions, ensuring that the burrs in the tooth grooves are completely removed. When the first wire brush head needs to be replaced, simply turn the bolt to disengage it from the threaded hole to remove the old brush head and install the new one. This makes the operation simple and quick, reducing the difficulty and time cost of equipment maintenance.

[0012] 2. This burr removal device for automotive gear processing utilizes a steering assembly to drive the end face component. A bowl-shaped end face wire brush thoroughly grinds the end face of the workpiece teeth, while a wire brush with an aperture matching the inner diameter of the workpiece teeth, located at the center of the bowl, simultaneously cleans burrs from the inner hole edge, effectively improving cleaning efficiency. The height of the end face component can be adjusted by rotating the handle, allowing for adjustment of the contact position between the end face wire brush and the aperture wire brush according to the thickness of the workpiece teeth. As the handle is continuously rotated, its slider continuously moves upward along the inner wall of the guide groove, causing the guide block to slide along the inner wall of the guide groove to its top. At this point, the slider rotates synchronously due to the rotation of the lead screw, causing the guide block to rotate from one side of the steering groove to the other, allowing the end face component to rotate as a whole. This facilitates the removal of the workpiece teeth during handling, avoiding operational obstruction and improving operational convenience. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rotation trajectory structure of this utility model; Figure 3 This is a schematic diagram of the brush head structure of this utility model; Figure 4 This is a schematic diagram of the steering component structure of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Workbench; 2. Housing; 3. Barrier cover; 4. First motor; 5. Coupling; 6. First shaft; 7. Placement platform; 8. Main gear; 9. Secondary gear; 10. Internal gear ring; 11. Second shaft; 12. Dovetail groove; 13. Workpiece gear; 14. Side assembly; 15. Steering assembly; 141. First wire brush head; 142. Collar; 143. Nut; 144. Bolt; 151. Handle; 152. Third rotating shaft; 153. Lead screw; 154. Conical tooth; 155. Umbrella tooth; 156. Guide cylinder; 157. Guide groove; 158. Turning groove; 159. End face component; 1591. Slider; 1592. Guide block; 1593. Connecting cylinder; 1594. Connecting rod; 1595. Support base; 1596. Second motor; 1597. End face wire brush; 1598. Aperture wire brush. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 - Figure 5 A burr removal device for automotive gear processing includes a worktable 1. A housing 2 and a barrier cover 3 are fixedly installed on the top of the worktable 1. A first motor 4 is fixedly installed at the bottom of the worktable 1. A coupling 5 is fixedly sleeved on the outer edge of the output shaft of the first motor 4. A first rotating shaft 6 is fixedly sleeved on the inner wall of the coupling 5. A placement platform 7 and a main gear 8 are fixedly sleeved on the top of the first rotating shaft 6. A second rotating shaft 11 is provided on the top of the worktable 1. A dovetail groove 12 is provided on the outer wall of the second rotating shaft 11. An internal gear ring 10 is fixedly installed on the inner wall of the barrier cover 3. A workpiece tooth 13 is slidably sleeved on the top of the placement platform 7. A secondary gear 9 is fixedly sleeved on the outer wall of the second rotating shaft 11. A side assembly 14 is provided on the outer wall of the second rotating shaft 11. A steering assembly 15 is provided on the top of the housing 2. In the above structure, the workbench 1 provides a stable mounting base for the entire device, and the housing 2 and the barrier cover 3 provide protection and support space for the steering assembly 15, the auxiliary gear 9, the second rotating shaft 11, the dovetail groove 12 and the side assembly 14, respectively. When cleaning the burrs on the workpiece teeth 13, the cleaned metal chips will be confined in the inner cavity of the barrier cover 3, thereby preventing the metal chips from splashing out of the equipment due to cleaning.

[0017] In a preferred embodiment: the auxiliary tooth 9, the second rotating shaft 11, the dovetail groove 12 and the side assembly 14 are regarded as a set of movable components, and there are three sets of such movable components, which are arranged at a distance of 120 degrees from the main tooth 8. The outer edge teeth of the three auxiliary teeth 9 mesh with the outer edge teeth of the main tooth 8, and the outer edge teeth on the other side mesh with the outer edge teeth of the internal gear ring 10. In the above structure, the first motor 4 drives the first rotating shaft 6 to rotate, which in turn drives the workpiece teeth 13 on the platform 7 to rotate synchronously. At the same time, the main teeth 8 will rotate with the first rotating shaft 6. Since the outer edges of one side of the three auxiliary teeth 9 are respectively engaged with the main teeth 8, the three auxiliary teeth 9 will rotate under the rotation of the main teeth 8. Furthermore, since the other side of the three auxiliary teeth 9 is engaged with the outer edge of the inner gear ring 10, the three auxiliary teeth 9 will revolve and rotate around the main teeth 8. The second rotating shaft 11 will be driven synchronously by the revolve and rotation of the auxiliary teeth 9 to rotate the side component 14 set on the outer wall, so that the side component 14 can perform all-round burr cleaning around the tooth groove of the workpiece teeth 13.

[0018] In a preferred embodiment: the side assembly 14 includes a first wire brush head 141 disposed on the outer wall of the second rotating shaft 11, a collar 142 disposed on the top of the first wire brush head 141, a nut 143 fixedly mounted on the outer wall of the collar 142, and a bolt 144 disposed on the outer wall of the collar 142. In a preferred embodiment: the inner wall of the first wire brush head 141 is adapted to the shape of the outer wall of the second rotating shaft 11, the inner wall of the collar 142 is adapted to the shape of the inner wall of the dovetail groove 12, the outer walls of the collar 142 and the second rotating shaft 11 are both pre-set with threaded holes, and the threaded holes are staggered and engaged with the outer wall of the bolt 144, the bolt 144 is through the inner walls of the collar 142 and the second rotating shaft 11, and is staggered and engaged with the inner thread of the nut 143; In the above structure, the first wire brush head 141 is slid along the inner wall of the second rotating shaft 11 until it fits against the top of the auxiliary tooth 9. Then, the collar 142 is picked up and slid along the inner wall of the dovetail groove 12 towards the top of the first wire brush head 141. When the collar 142 slides to the top of the first wire brush head 141, the threaded hole on the outer wall of the collar 142 will be aligned with the threaded hole on the inner wall of the second rotating shaft 11. Then, the bolt 144 is used to thread and engage with the nut 143 through the threaded holes of the collar 142 and the second rotating shaft 11 to fix the first wire brush head 141 to the top of the auxiliary tooth 9. When it is necessary to replace the first wire brush head 141, the bolt 144 can be rotated to achieve convenient replacement through the reverse operation.

[0019] In a preferred embodiment: the steering assembly 15 includes a handle 151 disposed on the outer wall of the housing 2, a third rotating shaft 152 fixedly sleeved on the inner wall of the handle 151, a lead screw 153 rotatably connected to the inner wall of the housing 2, a conical tooth 154 fixedly sleeved on the outer wall of the third rotating shaft 152, an umbrella-shaped tooth 155 fixedly sleeved on the outer wall of the lead screw 153, a guide cylinder 156 fixedly installed on the top of the housing 2, a guide groove 157 and a steering groove 158 respectively opened on the outer wall of the guide cylinder 156, and an end face 159 disposed on the top of the housing 2, the end face 159 including a part disposed on the guide cylinder The slider 1591 in the inner cavity of 156 has a guide block 1592 fixedly connected to one end of its outer wall. The other end of the guide block 1592 is fixedly connected to a connecting cylinder 1593. The outer wall of the connecting cylinder 1593 is fixedly connected to one end of a connecting rod 1594. The other end of the connecting rod 1594 is fixedly fitted with a support base 1595. A second motor 1596 is fixedly installed on the top of the support base 1595. An end face wire brush 1597 is fixedly sleeved on the outer edge of the output shaft of the second motor 1596. An aperture wire brush 1598 is provided on the inner wall of the end face wire brush 1597. In a preferred embodiment: the outer edge teeth of the conical tooth 154 and the outer edge teeth of the umbrella tooth 155 are interleaved and meshed; the inner wall of the slider 1591 is threaded and interleaved and meshed with the outer wall thread of the lead screw 153; the steering groove 158 is located on one side of the top of the guide groove 157; the outer wall of the guide block 1592 is slidably fitted to the inner walls of the steering groove 158 and the guide groove 157 respectively; the cross-section of the end face wire brush 1597 is bowl-shaped, and the aperture wire brush 1598 is located in the middle of the bowl shape; the diameter of the aperture wire brush 1598 is adapted to the inner wall diameter of the workpiece tooth 13. In the above structure, rotating the handle 151 drives the third rotating shaft 152 and the conical tooth 154 to rotate. The meshing transmission between the conical tooth 154 and the umbrella tooth 155 causes the lead screw 153 to rotate, thereby driving the slider 1591 to move axially along the lead screw 153 on the inner wall of the guide cylinder 156. Simultaneously, the guide block 1592 slides on the inner wall of the guide groove 157, causing the connecting cylinder 1593, connecting rod 1594, and support base 1595 to rise and fall synchronously. This achieves adjustment of the overall height of the end face component 159, allowing for adjustment of the contact positions of the end face wire brush 1597 and the aperture wire brush 1598 with the workpiece tooth 13 according to the thickness of the workpiece tooth 13. Furthermore, the guide block 1592 moves along the guide groove 157... When the inner wall slides to the top, the slider 1591 rotates synchronously with the rotation of the lead screw 153, causing the guide block 1592 to rotate along one side of the turning groove 158 to the other side under the rotation of its slider 1591. At this time, the end face part 159 rotates as a whole, so that it can be moved away when not cleaning, avoiding obstruction of the picking and placing of the workpiece teeth 13. At the same time, the second motor 1596 drives the bowl-shaped end face wire brush 1597 to rotate, which can fully polish the end face of the workpiece teeth 13. Meanwhile, the diameter of the wire brush 1598 located in the middle of the bowl is matched with the inner wall diameter of the workpiece teeth 13, which can simultaneously clean the burrs on the edge of the inner hole of the workpiece teeth 13, realizing the integrated cleaning of the end face and the inner hole burrs.

[0020] Working principle: First, the workpiece tooth 13 is placed on top of the platform 7. Then, the first motor 4 is started, and its output shaft drives the first rotating shaft 6 to rotate through the coupling 5. The rotation of the first rotating shaft 6 synchronously drives the workpiece tooth 13 on the platform 7 to rotate synchronously. At the same time, the main tooth 8 rotates with the first rotating shaft 6. Because one side of the three auxiliary teeth 9 meshes with the main tooth 8, the three auxiliary teeth 9 rotate under the drive of the main tooth 8. Because the other side of the three auxiliary teeth 9 meshes with the internal gear ring 10, the three auxiliary teeth 9 revolve around the main tooth 8 while rotating. This drives the second rotating shaft 11 and the side assembly 14 on the outer wall to revolve and rotate synchronously, causing the first wire brush of the side assembly 14 to rotate. During its revolution and rotation, head 141 performs all-round burr removal on the tooth groove of workpiece tooth 13, so that the metal chips generated during cleaning are confined in its inner cavity by the barrier cover 3 to prevent them from splashing out of the equipment. Then, the second motor 1596 is started, and the output shaft of the second motor 1596 drives the bowl-shaped end face wire brush 1597 to rotate, which performs all-round grinding on the end face of workpiece tooth 13. At the same time, the aperture wire brush 1598 located in the middle of the bowl shape of the end face wire brush 1597 rotates synchronously with it. Since the diameter of the aperture wire brush 1598 is adapted to the inner wall diameter of workpiece tooth 13, it can simultaneously clean the burrs on the edge of the inner hole of workpiece tooth 13, realizing integrated cleaning of end face and inner hole burrs. Secondly, if the first wire brush head 141 needs to be replaced, first rotate the bolt 144 to disengage it from the nut 143, collar 142, and the threaded hole of the second shaft 11, remove the old first wire brush head 141, and then slide the new first wire brush head 141 along the inner wall of the second shaft 11 until it fits against the top of the auxiliary tooth 9. Pick up the collar 142 and slide it along the inner wall of the dovetail groove 12 toward the top of the first wire brush head 141. When the collar 142 slides to the top of the first wire brush head 141, ensure that the threaded hole on the outer wall of the collar 142 is aligned with the threaded hole on the inner wall of the second shaft 11. Then, use the bolt 144 to pass through these threaded holes and engage with the nut 143 to fix it, thereby completing the installation of the first wire brush head 141. Simultaneously, height adjustment is required during cleaning of the end face of workpiece tooth 13. This is achieved by rotating handle 151, which rotates the third shaft 152 and the conical tooth 154. Since the conical tooth 154 meshes with the bevel tooth 155, the bevel tooth 155 drives the lead screw 153 to rotate. This rotation of the lead screw 153 drives the slider 1591 to move axially along the lead screw 153 within the inner wall of the guide cylinder 156. Simultaneously, the guide block 1592 slides within the guide groove 157, thereby synchronously raising and lowering the connecting cylinder 1593, connecting rod 1594, and support base 1595. This achieves overall height adjustment of the end face component 159, allowing the end face wire brush 1597 and the aperture wire brush 1598 to move relative to the workpiece tooth 13. The end face and inner hole edge are in a suitable contact position. After the workpiece tooth 13 has completed burr cleaning, the handle 151 is continuously rotated. At this time, the slider 1591 continuously moves upward along the inner wall of the guide groove 157, so that the guide block 1592 slides along the inner wall of the guide groove 157 to the top of the inner wall of the guide groove 157. At this time, the slider 1591 rotates synchronously due to the rotation of the lead screw 153, so that the guide block 1592 rotates from one side to the other side along the turning groove 158 under the rotation of its slider 1591. At this time, the end face part 159 is turned as a whole, so as to facilitate its removal when not cleaning, and then the cleaned workpiece tooth 13 is removed from the top of the placement platform 7, and the work is completed in sequence.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A burr cleaning device for machining of automobile gears, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly equipped with a housing (2) and a barrier cover (3). The bottom of the workbench (1) is fixedly equipped with a first motor (4). The output shaft of the first motor (4) is fixedly sleeved with a coupling (5). The inner wall of the coupling (5) is fixedly sleeved with a first rotating shaft (6). The top of the first rotating shaft (6) is fixedly sleeved with a placement platform (7) and a main gear (8). The top of the workbench (1) is provided with a second rotating shaft (11). The outer wall of the second rotating shaft (11) is provided with a dovetail groove (12). The inner wall of the barrier cover (3) is fixedly equipped with an internal gear ring (10). The top of the placement platform (7) is slidably sleeved with a workpiece tooth (13). The outer wall of the second rotating shaft (11) is fixedly sleeved with a secondary tooth (9). The outer wall of the second rotating shaft (11) is provided with a side assembly (14). The top of the housing (2) is provided with a steering assembly (15).

2. A burr cleaning device for machining of automobile gears according to claim 1, characterized in that: The auxiliary teeth (9), the second rotating shaft (11), the dovetail groove (12) and the side assembly (14) are considered as a set of movable components, and there are three sets of such movable components. They are set at a distance of 120 degrees from the main teeth (8). The outer edge teeth of the three auxiliary teeth (9) mesh with the outer edge teeth of the main teeth (8), and the outer edge teeth on the other side mesh with the outer edge teeth of the internal gear ring (10).

3. The burr cleaning device for machining of automobile gears according to claim 1, characterized in that: The side assembly (14) includes a first wire brush head (141) disposed on the outer wall of the second rotating shaft (11), a collar (142) is disposed on the top of the first wire brush head (141), a nut (143) is fixedly installed on the outer wall of the collar (142), and a bolt (144) is disposed on the outer wall of the collar (142).

4. The burring device for machining of automobile gears according to claim 3, characterized in that: The inner wall of the first wire brush head (141) is adapted to the shape of the outer wall of the second rotating shaft (11), the inner wall of the collar (142) is adapted to the shape of the inner wall of the dovetail groove (12), the outer walls of the collar (142) and the second rotating shaft (11) are both pre-set with threaded holes, and the threaded holes are interlocked with the outer wall of the bolt (144). The bolt (144) penetrates the inner walls of the collar (142) and the second rotating shaft (11), and is interlocked with the inner thread of the nut (143).

5. The burr cleaning device for machining of automobile gears according to claim 1, characterized in that: The steering assembly (15) includes a handle (151) disposed on the outer wall of the housing (2), a third rotating shaft (152) fixedly sleeved on the inner wall of the handle (151), a lead screw (153) rotatably connected to the inner wall of the housing (2), a conical tooth (154) fixedly sleeved on the outer wall of the third rotating shaft (152), an umbrella-shaped tooth (155) fixedly sleeved on the outer wall of the lead screw (153), a guide cylinder (156) fixedly installed on the top of the housing (2), a guide groove (157) and a steering groove (158) respectively opened on the outer wall of the guide cylinder (156), and an end face piece (159) provided on the top of the housing (2), the end face piece (159) including a part disposed on the guide cylinder (156) 156) The inner cavity has a slider (1591), one end of which is fixedly connected to the outer wall of the slider (1591) is a guide block (1592), the other end of which is fixedly connected to a connecting cylinder (1593), one end of which is fixedly connected to the outer wall of the connecting cylinder (1593) is a connecting rod (1594), the other end of which is fixedly fitted with a support base (1595), a second motor (1596) is fixedly installed on the top of the support base (1595), an end face wire brush (1597) is fixedly sleeved on the outer edge of the output shaft of the second motor (1596), and an aperture wire brush (1598) is provided on the inner wall of the end face wire brush (1597).

6. A burr cleaning device for machining of automotive gears according to claim 5, characterized in that: The outer edge teeth of the conical teeth (154) are interlocked with the outer edge teeth of the umbrella teeth (155). The inner wall of the slider (1591) is threaded and interlocked with the outer wall thread of the lead screw (153). The steering groove (158) is located on one side of the top of the guide groove (157). The outer wall of the guide block (1592) is in contact with the inner wall of the steering groove (158) and the guide groove (157) respectively. The cross-section of the end face wire brush (1597) is bowl-shaped, and the aperture wire brush (1598) is located in the middle of the bowl shape. The diameter of the aperture wire brush (1598) is adapted to the inner wall diameter of the workpiece teeth (13).