Novel polishing device for automobile brake disc machining

Abstract

The novel polishing device comprises an equipment bottom plate and a power mechanism, the upper portion of the equipment bottom plate is fixedly connected with a supporting box, the top of the supporting box is fixedly connected with a machining table top, the supporting box is rotationally connected with a horizontal driving shaft, and the horizontal driving shaft is in transmission connection with the power mechanism; the outer side of the horizontal driving shaft is slidably connected with two driving screw sleeves, the screwing directions of threads on the outer sides of the two driving screw sleeves are opposite, and the driving screw sleeves are locked with the horizontal driving shaft through locking screws; a threaded sleeve is in threaded connection with the outer side of the driving threaded sleeve, a clamping rod is fixedly connected to the threaded sleeve, and the clamping rod penetrates through the machining table top and is connected with a clamping unit used for clamping the brake disc. The two purposes of clamping and polishing the brake disc are achieved through driving of the power mechanism. And the threaded sleeve can be controlled to stop finally by adjusting the position of the driving threaded sleeve, so that the brake discs with different sizes can be applied by adjusting the position of the driving threaded sleeve.

Description

Technical Field

[0001] The invention relates to a polishing device, in particular to a novel polishing device for processing automobile brake discs. Background Art

[0002] In the current field of brake disc processing, there are many technical difficulties in the clamping and polishing of brake discs. Traditional brake disc clamping and polishing equipment has a complex structure, involving a large number of cumbersome mechanical parts and assembly processes, which not only increases the manufacturing cost of the equipment, but also has great difficulty in operation during actual use, and requires extremely high professional skills of the operator, which seriously limits the convenience of using the equipment. Existing clamping devices are often only designed for brake discs of specific sizes and lack sufficient flexibility and versatility. When faced with brake discs of different sizes and specifications, it is necessary to frequently replace the clamping mold or perform complex parameter adjustments, which consumes a lot of time and labor costs, greatly reducing production efficiency. Moreover, traditional polishing equipment has defects in structural design. The position of the polishing component is fixed, and it is difficult to easily adjust the up and down position after the brake disc is clamped. This makes the connection between the clamping and polishing processes of the brake disc not smooth enough. After polishing is completed, the removal operation of the brake disc is also extremely inconvenient, which seriously affects the overall processing efficiency and work experience. For this reason, technical personnel in this field have proposed a new type of polishing device for automobile brake disc processing to solve the problems raised in the above background. Summary of the invention

[0003] The purpose of the present invention is to provide a novel polishing device for automobile brake disc processing to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A novel polishing device for processing automobile brake discs comprises an equipment base plate and a power mechanism, wherein the power mechanism is fixed on the equipment base plate, a support box is fixedly connected above the equipment base plate, a processing table is fixedly connected to the top of the support box, a horizontal drive shaft is rotatably connected to the support box, the horizontal drive shaft is transmission-connected to the power mechanism, two drive screw sleeves are slidably connected to the outer side of the horizontal drive shaft, the outer threads of the two drive screw sleeves rotate in opposite directions, and the drive screw sleeves are locked to the horizontal drive shaft by locking screws; a threaded sleeve is threadedly connected to the outer side of the drive screw sleeve, a clamping rod is fixedly connected to the threaded sleeve, the clamping rod passes through the processing table and is connected to a clamping unit for clamping the brake disc, a through groove is provided on the processing table, and the clamping rod is slidably arranged in the through groove; a polishing assembly for polishing is also arranged on the processing table, and the polishing assembly is transmission-connected to the power mechanism.

[0005] As a further solution of the present invention: the power mechanism includes a driving motor fixed above the bottom plate of the equipment, a driving pulley is fixedly connected to the rotor of the driving motor, a driven pulley is fixedly connected to the end of the horizontal driving shaft, and a transmission belt is sleeved between the driving pulley and the driven pulley.

[0006] As a further solution of the present invention: the locking screw is a countersunk screw, and when the locking screw is in a locked state, the end thereof is located in the thread of the driving screw sleeve.

[0007] As a further solution of the present invention: a guide cross bar is fixedly connected to the bottom of the processing table, two clamping rods are slidably connected to the guide cross bar, a first spring is sleeved on the outer side of the guide cross bar, and the first spring is located between the two clamping rods.

[0008] As a further solution of the present invention: the polishing assembly includes a polishing base plate with adjustable position, two polishing shafts are rotatably connected to the polishing base plate, and polishing wheels are fixedly connected to the bottom of the polishing shafts. The polishing wheels are respectively located on both sides of the brake disc, and the other end of the polishing shaft is transmission-connected to the power mechanism.

[0009] As a further solution of the present invention: a guide rod is fixedly connected to the end of the polishing base plate, the guide rod is slidably connected to the processing table, a second spring is connected to the outer side of the guide rod, and the polishing wheel is moved away from the brake disc under the action of the spring force of the second spring.

[0010] As a further solution of the present invention: a positioning shaft is rotatably connected on the polishing substrate, a transmission vertical shaft is rotatably connected on the processing table, the positioning shaft and the transmission vertical shaft rotate synchronously, the bottom of the transmission vertical shaft is connected to the horizontal driving shaft through a gear set, the polishing substrate is rotatably connected with a driving gear, the top of the polishing shaft is fixedly connected with a driven gear, the driven gears are respectively meshed with both sides of the driving gear, and the driving gear axle and the positioning shaft are linked by a belt drive.

[0011] As a further solution of the present invention: the clamping unit includes a sleeve fixedly connected to the clamping rod, a third spring is fixedly connected to the bottom of the sleeve, the other end of the third spring is fixedly connected to a clamping end block, the clamping end block is slidably connected to the sleeve, and the surface of the clamping end block is provided with anti-slip protrusions or anti-slip patterns.

[0012] As a further solution of the present invention: a dust collecting box for collecting dust is slidably connected to the side of the support box.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a simple structure and is easy to use. It can achieve the two purposes of clamping and polishing the brake disc by driving the power mechanism. The position of the drive screw sleeve can be adjusted to control the final stop of the screw sleeve, so that it can be applied to brake discs of different sizes by adjusting the position of the drive screw sleeve. In addition, the polishing assembly can be moved up and down, which is convenient for polishing after the brake disc is clamped, and it is also convenient for removing the brake disc after polishing is completed, which significantly improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a new type of polishing device for automobile brake disc processing from the first perspective; Figure 2 It is a structural schematic diagram of a new type of polishing device for automobile brake disc processing from a second perspective; Figure 3 It is a structural schematic diagram of a new type of polishing device for automobile brake disc processing from the third perspective; Figure 4 It is a structural schematic diagram of a new type of polishing device for automobile brake disc processing from the fourth perspective; Figure 5 for Figure 4 A partial enlarged view of the middle part; Figure 6 This is a schematic diagram of the structure of a polishing component in a new type of polishing device for processing automobile brake discs; Figure 7 A schematic diagram of a horizontal drive shaft and a part of its connection structure in a new type of polishing device for automobile brake disc processing; Figure 8 It is a partial cross-sectional structural schematic diagram of a clamping unit in a new type of polishing device for automobile brake disc processing; In the figure: 1. Equipment base plate; 2. Power mechanism; 3. Support box; 4. Processing table; 5. Horizontal drive shaft; 6. Drive screw sleeve; 7. Locking screw; 8. Threaded sleeve; 9. Clamping rod; 10. Clamping unit; 11. Through groove; 12. Polishing assembly; 13. Active pulley; 14. Driven pulley; 15. Transmission belt; 16. Guide cross bar; 17. First spring; 18. Polishing substrate; 19. Polishing shaft; 20. Polishing wheel; 21. Guide vertical rod; 22. Second spring; 23. Positioning shaft; 24. Transmission vertical shaft; 25. Drive gear; 26. Driven gear; 27. Sleeve; 28. Third spring; 29. ​​Clamping end block; 30. Dust collection box. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0019] Example 1: Please refer to Figure 1 , Figure 3 , Figure 5 and Figure 7A novel polishing device for automobile brake disc processing includes an equipment base plate 1 and a power mechanism 2. The power mechanism 2 can be driven by various types of motors and can also be driven by an internal combustion engine or other mechanisms. The power mechanism 2 is fixed on the equipment base plate 1, and a support box 3 is fixedly connected above the equipment base plate 1. The support box 3 is a hollow structure, and a processing table 4 is fixedly connected to the top of the support box 3. A horizontal driving shaft 5 is rotatably connected to the support box 3, and the horizontal driving shaft 5 is transmission-connected to the power mechanism 2. Two driving screw sleeves 6 are slidingly connected to the outer side of the horizontal driving shaft 5. The outer side threads of the two driving screw sleeves 6 have opposite rotation directions, and the driving screw sleeves 6 are locked with the horizontal driving shaft 5 by locking screws 7; a threaded sleeve 8 is threadedly connected to the outer side of the driving screw sleeve 6, and a clamping rod 9 is fixedly connected to the threaded sleeve 8. The clamping rod 9 passes through the processing table 4 and is connected to a clamping unit 10 for clamping the brake disc. A through groove 11 is opened on the processing table 4, and the through groove 11 can guide the clamping rod 9. At the same time, debris is easily generated during the polishing process, and the debris retained on the processing table 4 can be discharged to the inside of the support box 3 through the through groove 11. The clamping rod 9 is slidably disposed in the through groove 11 ; the processing table 4 is also provided with a polishing assembly 12 for polishing, and the polishing assembly 12 is transmission-connected to the power mechanism 2 .

[0020] After the equipment is installed, it is necessary to first adjust the position of the drive screw sleeve 6 according to the brake disc that needs to be polished. Slide the drive screw sleeve 6 inward. The closer the final distance of the clamping unit 10 is, the thinner the brake disc can be clamped. Conversely, a thicker brake disc can be clamped. Adjust the drive screw sleeve 6 inward to a suitable position and tighten the locking screw 7. The locking screw 7 locks the position of the drive screw sleeve 6, and then the polishing operation can be carried out. Turn on the power mechanism 2, the power mechanism 2 drives the horizontal drive shaft 5 to rotate, and the rotation of the horizontal drive shaft 5 drives the drive screw sleeve 6 to rotate, and then drives the threaded sleeve 8 to move relative or away from the movement. During the relative movement, the clamping unit 10 fixedly connected to the threaded sleeve 8 is used to clamp the brake disc, and the away movement can remove the polished brake disc.

[0021] See also Figure 2 and Figure 4 The power mechanism 2 includes a driving motor fixed on the top of the equipment bottom plate 1, a driving pulley 13 is fixedly connected to the driving motor rotor, a driven pulley 14 is fixedly connected to the end of the horizontal driving shaft 5, and a transmission belt 15 is sleeved between the driving pulley 13 and the driven pulley 14. The locking screw 7 is a countersunk screw, and when the locking screw 7 is in a locked state, the end is located in the thread of the driving screw sleeve 6. At least one locking screw 7 is provided. In order to ensure the locking state between the driving screw sleeve 6 and the horizontal driving shaft 5, the number of locking screws 7 can be appropriately increased, preferably 2-3. An inspection port for adjusting the position of the threaded sleeve 8 needs to be opened on the side of the support box 3, and a cover plate can be provided on the outside of the inspection port.

[0022] As the clamping unit 10 approaches, when the end of the driving screw sleeve 6 is misaligned with the threaded sleeve 8, the threaded sleeve 8 cannot be driven to continue to approach, and the clamping is completed at this time. When the power mechanism 2 is reversed, the clamping unit 10 will be driven outward under the action of the external thread of the driving screw sleeve 6, and the polishing component 12 can be moved to polish the brake disc. The driving motor drives the active pulley 13 to rotate, and then drives the driven pulley 14 to rotate through the transmission belt 15, and finally realizes the rotation drive of the horizontal drive shaft 5. The locking screw 7 is set as a countersunk screw to effectively avoid interference between the threaded sleeve 8 and the locking screw 7.

[0023] See also Figure 5 The bottom of the processing table 4 is fixedly connected with a guide cross bar 16, and the two clamping rods 9 are slidably connected with the guide cross bar 16. The outer side of the guide cross bar 16 is sleeved with a first spring 17, and the first spring 17 is located between the two clamping rods 9. A spring located outside the clamping rod 9 can also be sleeved outside the guide cross bar 16, so that the threaded sleeve 8 can also provide spring force when it is located at the outermost side, so that the threaded sleeve 8 and the driving screw sleeve 6 are against each other. If the spring is not provided, the horizontal drive shaft 5 should be prevented from rotating too many times during the brake disc material removal process, and the threaded sleeve 8 and the driving screw sleeve 6 should be out of engagement.

[0024] The guide cross bar 16 can further provide a guiding function for the clamping rod 9, and provides an installation position for the first spring 17, and the first spring 17 can be directly sleeved on the outside of the guide cross bar 16. When the clamping rod 9 is clamped, the first spring 17 is compressed to ensure that the threaded sleeve 8 and the drive screw sleeve 6 can be threadedly matched when the power mechanism 2 is reversed.

[0025] See also Figure 6 The polishing assembly 12 includes a polishing base plate 18 whose position can be adjusted. Two polishing shafts 19 are rotatably connected to the polishing base plate 18. The bottom of each polishing shaft 19 is fixedly connected to a polishing wheel 20. The polishing wheels 20 are respectively located on both sides of the brake disc. The other end of the polishing shaft 19 is transmission-connected to the power mechanism 2. A guide rod 21 is fixedly connected to the end of the polishing base plate 18. The guide rod 21 is slidably connected to the processing table 4. A second spring 22 is connected to the outer side of the guide rod 21. The polishing wheel 20 is away from the brake disc under the action of the spring force of the second spring 22.

[0026] The polishing substrate 18 is driven by the power mechanism 2, so that the polishing shaft 19 rotates synchronously. The bottom of the polishing shaft 19 is connected to the polishing wheel 20, and a polishing wheel 20 with a suitable diameter is selected for polishing. The guide rod 21 allows the polishing substrate 18 to slide up and down, so as to realize the polishing operation during the moving stroke. At the same time, when the polishing substrate 18 is away from the brake disc, the power mechanism 2 can be reversed to conveniently take out the polished brake disc.

[0027] The polishing substrate 18 is rotatably connected with a positioning shaft 23, and the processing table 4 is rotatably connected with a transmission vertical shaft 24. The positioning shaft 23 rotates synchronously with the transmission vertical shaft 24. The bottom of the transmission vertical shaft 24 is connected to the horizontal driving shaft 5 through a gear set. The polishing substrate 18 is rotatably connected with a driving gear 25, and the top of the polishing shaft 19 is fixedly connected with a driven gear 26. The driven gears 26 are respectively meshed with both sides of the driving gear 25, and the axle of the driving gear 25 and the positioning shaft 23 are linked by belt transmission.

[0028] During the up and down movement of the polishing substrate 18 , the transmission vertical shaft 24 can always drive the positioning shaft 23 to rotate, and then drive the driving gear 25 to rotate through the pulley mechanism, and the driving gear 25 can simultaneously drive the driven gears 26 on both sides to rotate.

[0029] Embodiment 2: This embodiment specifically discloses a structure of a clamping unit 10 based on the previous embodiment. Figure 8 The clamping unit 10 includes a sleeve 27 fixedly connected to the clamping rod 9, a third spring 28 is fixedly connected to the bottom of the sleeve 27, a clamping end block 29 is fixedly connected to the other end of the third spring 28, the clamping end block 29 is slidably connected to the sleeve 27, and the surface of the clamping end block 29 is provided with anti-skid protrusions or anti-skid patterns to achieve a better clamping effect. The third spring 28 inside the clamping unit 10 enables the clamping end block 29 to elastically clamp the brake disc to ensure a certain clamping margin during the clamping process. After clamping, the clamping rod 9 can continue to move, making the clamping more stable and reliable. In order to further facilitate polishing, a clamping plate can be rotatably connected to the inner side of the clamping end block 29, and the brake disc is clamped indirectly through the clamping plate. The brake disc can be rotated during the clamping process to meet the polishing of the brake disc at all angles.

[0030] The side of the support box 3 is slidably connected with a dust collecting box 30 for collecting dust. The dust collecting box 30 is used to collect the debris entering the support box 3 through the through slot 11 for reuse.

[0031] Working principle: After the equipment is installed, you first need to adjust the position of the drive screw sleeve 6 according to the brake disc that needs to be polished. Slide the drive screw sleeve 6 inward. The closer the final distance of the clamping unit 10 is, the thinner the brake disc can be clamped. Conversely, a thicker brake disc can be clamped. Adjust the drive screw sleeve 6 inward to a suitable position and tighten the locking screw 7. The locking screw 7 locks the position of the drive screw sleeve 6, and then the polishing operation can be carried out. Turn on the power mechanism 2, which drives the horizontal drive shaft 5 to rotate. The rotation of the horizontal drive shaft 5 drives the drive screw sleeve 6 to rotate, and then drives the threaded sleeve 8 to move relative or away from it. During relative movement, the clamping unit 10 fixedly connected to the threaded sleeve 8 is used to clamp the brake disc, and the away movement can remove the polished brake disc.

[0032] As the clamping unit 10 approaches, when the end of the driving screw sleeve 6 is misaligned with the threaded sleeve 8, the threaded sleeve 8 cannot be driven to continue to approach, and the clamping is completed at this time. When the power mechanism 2 is reversed, the clamping unit 10 will be driven outward under the action of the external thread of the driving screw sleeve 6, and the polishing assembly 12 can be moved to polish the brake disc. The driving motor drives the active pulley 13 to rotate, and then drives the driven pulley 14 to rotate through the transmission belt 15, and finally realizes the rotation drive of the horizontal drive shaft 5. The locking screw 7 is set as a countersunk screw to effectively avoid interference between the threaded sleeve 8 and the locking screw 7. The guide cross bar 16 can further provide a guiding effect on the clamping rod 9, and provides an installation position for the first spring 17, and the first spring 17 can be directly sleeved on the outside of the guide cross bar 16. When the clamping rod 9 is clamped, the first spring 17 is compressed to ensure that when the power mechanism 2 is reversed, the threaded sleeve 8 and the driving screw sleeve 6 can be threadedly matched. The polishing substrate 18 is driven by the power mechanism 2 to make the polishing shaft 19 rotate synchronously. The bottom of the polishing shaft 19 is connected to the polishing wheel 20, and a polishing wheel 20 with a suitable diameter is selected for polishing processing.

[0033] The guide rod 21 allows the polishing substrate 18 to slide up and down, thereby achieving polishing during the moving stroke. At the same time, when the polishing substrate 18 is away from the brake disc, the power mechanism 2 can be reversed to take out the polished brake disc. During the up and down movement of the polishing substrate 18, the transmission shaft 24 can always drive the positioning shaft 23 to rotate, and then drive the driving gear 25 to rotate through the pulley mechanism, and the driving gear 25 can simultaneously drive the driven gears 26 on both sides to rotate.

[0034] The third spring 28 inside the clamping unit 10 enables the clamping end block 29 to elastically clamp the brake disc to ensure a certain clamping margin during the clamping process. After clamping, the clamping rod 9 can continue to move, making the clamping more stable and reliable.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel polishing device for automobile brake disc processing, comprising a device base plate (1) and a power mechanism (2), wherein the power mechanism (2) is fixed on the device base plate (1), a support box (3) is fixedly connected above the device base plate (1), and a processing table (4) is fixedly connected to the top of the support box (3), wherein the feature is that: The support box (3) is rotatably connected to a horizontal drive shaft (5), which is transmission-connected to the power mechanism (2). Two drive screw sleeves (6) are slidably connected to the outside of the horizontal drive shaft (5), and the threads of the two drive screw sleeves (6) are in opposite directions. The drive screw sleeves (6) are locked to the horizontal drive shaft (5) by means of locking screws (7). The drive screw sleeves (6) are threadedly connected to the outside of the drive screw sleeves (8), and a clamping rod (9) is fixedly connected to the threaded sleeve (8). The clamping rod (9) passes through the processing table (4) and is connected to a clamping unit (10) for clamping a brake disc. A through groove (11) is provided on the processing table (4), and the clamping rod (9) is slidably arranged in the through groove (11). A polishing assembly (12) for polishing is also provided on the processing table (4), and the polishing assembly (12) is transmission-connected to the power mechanism (2).

2. The novel polishing device for automobile brake disc processing according to claim 1 is characterized in that: The power mechanism (2) comprises a driving motor fixed above the equipment bottom plate (1), a driving pulley (13) being fixedly connected to the driving motor rotor, a driven pulley (14) being fixedly connected to the end of the horizontal driving shaft (5), and a transmission belt (15) being sleeved between the driving pulley (13) and the driven pulley (14).

3. The novel automobile brake disc polishing device according to claim 2 is characterized in that: The locking screw (7) is a countersunk screw, and when the locking screw (7) is in a locked state, the end thereof is located in the thread of the driving screw sleeve (6).

4. The novel automobile brake disc polishing device according to claim 3 is characterized in that: A guide cross bar (16) is fixedly connected to the bottom of the processing table (4), and the two clamping rods (9) are slidably connected to the guide cross bar (16). A first spring (17) is sleeved on the outer side of the guide cross bar (16), and the first spring (17) is located between the two clamping rods (9).

5. The novel automobile brake disc polishing device according to claim 1 is characterized in that: The polishing assembly (12) comprises a polishing base plate (18) whose position can be adjusted. Two polishing shafts (19) are rotatably connected to the polishing base plate (18). The bottoms of the polishing shafts (19) are fixedly connected to polishing wheels (20). The polishing wheels (20) are respectively located on both sides of the brake disc. The other end of the polishing shaft (19) is transmission-connected to the power mechanism (2).

6. The novel automobile brake disc polishing device according to claim 5 is characterized in that: The end of the polishing base plate (18) is fixedly connected to a guide rod (21), the guide rod (21) is slidably connected to the processing table (4), the outer side of the guide rod (21) is connected to a second spring (22), and the polishing wheel (20) moves away from the brake disc under the action of the spring force of the second spring (22).

7. The novel automobile brake disc polishing device according to claim 6 is characterized in that: The polishing base plate (18) is rotatably connected to a positioning shaft (23), and the processing table (4) is rotatably connected to a transmission vertical shaft (24). The positioning shaft (23) and the transmission vertical shaft (24) rotate synchronously. The bottom of the transmission vertical shaft (24) is connected to a horizontal driving shaft (5) through a gear set. The polishing base plate (18) is rotatably connected to a driving gear (25). The top of the polishing shaft (19) is fixedly connected to a driven gear (26). The driven gear (26) is respectively meshed with two sides of the driving gear (25). The wheel shaft of the driving gear (25) and the positioning shaft (23) are linked by a belt drive.

8. The novel polishing device for automobile brake disc processing according to claim 1 is characterized in that: The clamping unit (10) comprises a sleeve (27) fixedly connected to the clamping rod (9), a third spring (28) fixedly connected to the inner bottom of the sleeve (27), a clamping end block (29) fixedly connected to the other end of the third spring (28), the clamping end block (29) being slidably connected to the sleeve (27), and an anti-slip protrusion or anti-slip pattern being provided on the surface of the clamping end block (29).

9. The novel automobile brake disc polishing device according to claim 1 is characterized in that: A dust collecting box (30) for collecting dust is slidably connected to the side of the support box (3).

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