Brake disc machining lathe

Abstract

The invention relates to the technical field of brake disc machining, in particular to a brake disc machining lathe which comprises a lathe body, a supporting frame and an electric rotary table, the supporting frame and the electric rotary table are installed on the lathe body, a turning mechanism is arranged on the lathe body, and a brake disc body is attached to the upper end of the electric rotary table. The lathe not only can be used for turning a brake disc, but also can be used for forming a plurality of groups of heat dissipation holes in the brake disc in an annular array manner through the four drilling tools, and the arrangement mode of the four drilling tools can be changed, namely, the centers of the four drilling tools can be on the same straight line or on the same arc line, and the centers of the four drilling tools can be on the arc lines with different radians; and the distance between every two adjacent drilling tools in the four drilling tools can be synchronously adjusted, so that the heat dissipation hole forming requirements of different brake discs can be met. The four drilling tools can form a set of heat dissipation holes in the surface of the brake disc at a time, and compared with a traditional mode that heat dissipation holes are formed one by one through a single drill, the drilling flexibility, adaptability and efficiency are all improved.

Description

Technical Field

[0001] The present invention relates to the technical field of brake disc processing, and specifically to a lathe for processing brake discs. Background Art

[0002] The brake disc (also known as the brake rotor) is one of the core components of the vehicle braking system. It converts the kinetic energy of the vehicle into heat energy through friction with the brake pads, thereby achieving the functions of deceleration and stopping. During the manufacturing process of the brake disc, in order to ensure a smooth and flat surface and meet the precision requirements, the brake disc usually needs to be machined by turning on a lathe. At the same time, heat dissipation holes need to be machined on the surface of the brake disc. In order to improve production efficiency and reduce the transfer of workpieces, the existing lathes are also equipped with a mechanism for punching holes in the brake disc, which is simply called a turning and punching integrated lathe.

[0003] There are multiple groups of heat dissipation holes on the surface of the brake disc, and the multiple groups of heat dissipation holes are arranged in a circular array around the center of the brake disc. And each group of heat dissipation holes has multiple holes, for example, each group has four holes. The arrangement of the four heat dissipation holes will vary according to different brake discs. For example, the four heat dissipation holes are linearly arranged (the centers of the four heat dissipation holes are on a straight line), or the four heat dissipation holes are arranged in an arc array (the centers of the four heat dissipation holes are on an arc). However, the punching mechanism on the lathe usually drills the heat dissipation holes one by one with a single drill bit, and the punching efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide a lathe for processing brake discs to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lathe for processing brake discs, including a bed body, a support frame and an electric turntable installed on the bed body. A turning mechanism is provided on the bed body. The upper end of the electric turntable is attached to the brake disc main body, and a drilling mechanism is provided above the electric turntable; The drilling mechanism includes a frame, the frame is installed above the electric turntable through a transmission mechanism. A housing is fixedly installed at the lower end of the frame. Two sliding plates are slidably installed inside the housing through a driving mechanism. The front ends of the two sliding plates are fixedly connected with U-shaped blocks. The upper ends of the two U-shaped blocks are rotatably connected with U-shaped plates. U-shaped blocks are slidably installed at the mutually remote ends of the two U-shaped plates through an adjusting mechanism. Motors I are fixedly installed at the lower ends of the two U-shaped blocks and the two U-shaped plates. The output shaft ends of the four motors I are fixedly connected with drill bits. An angle adjusting mechanism is provided between the frame and the two U-shaped plates.

[0006] Preferably, the turning mechanism includes a fixing frame fixedly connected to the outer wall of the lathe bed. An electric slide table I is fixedly installed at the top of the fixing frame. An electric push rod II is fixedly installed on the working table of the electric slide table I. The telescopic shaft end of the electric push rod II is fixedly connected to a turning tool.

[0007] Preferably, the transmission mechanism includes an annular electric slide table fixedly installed at the inner top end of the support frame. An electric slide table II is fixedly installed on the working table of the annular electric slide table. An electric push rod I is fixedly installed on the working table of the electric slide table II. The telescopic shaft end of the electric push rod I is fixedly connected to a fixing plate, and the lower end of the fixing plate is fixedly connected to the upper end of the frame.

[0008] Preferably, the driving mechanism includes a motor II fixedly installed on a side wall of the housing. The output shaft of the motor II movably penetrates through a side wall of the housing. The output shaft end of the motor II is fixedly connected to a bidirectional lead screw. The end of the bidirectional lead screw far from the motor II is rotatably connected to the inner wall of the housing, and the bidirectional lead screw is screwed through the inner walls of two sliding plates.

[0009] Preferably, the adjusting mechanism includes a fixing block fixedly connected to the front end of the U-shaped plate. A small electric push rod is fixedly installed at the front end of the fixing block. The telescopic shaft end of the small electric push rod is fixedly connected to a convex block. A sliding groove is opened at the front end of the fixing block corresponding to the convex block. The protruding part of the convex block is slidably matched with the sliding groove. The end of the convex block far from the small electric push rod is fixedly connected to the front end of the U-shaped block.

[0010] Preferably, the angle adjusting mechanism includes a motor I fixedly installed at the lower end of the frame away from the housing. The output shaft end of the motor I is fixedly connected to a stud. The end of the stud far from the motor I is rotatably connected to the rear end of the housing. A slider is threadedly sleeved on the outer wall of the stud. The upper edges of both side walls of the slider are respectively in contact with L-shaped plates. Link rods are rotatably connected between the horizontal walls of the two L-shaped plates and the rear ends of the two U-shaped plates respectively. Elastic components are arranged between the two L-shaped plates and the slider.

[0011] Preferably, the angle adjusting mechanism further includes a guide post. One end of the guide post is fixedly connected to the rear end of the housing. The guide post is located below the stud. The other end of the guide post movably penetrates through the slider.

[0012] Preferably, the elastic component includes a support block fixedly connected to the upper end of the slider near the L-shaped plate. A pillar is slidably inserted through the inner wall of the support block. One end of the pillar is fixedly connected to the vertical wall of the L-shaped plate. The other end of the pillar is fixedly connected to a connecting disc. A spring is fixedly connected between the connecting disc and the support block. The spring is slidably sleeved on the outer wall of the pillar. A clamping component is arranged on the outside of the pillar.

[0013] Preferably, the clamping assembly includes a mounting post fixedly connected to the upper end of the slider near the support block. A motor three is fixedly installed at the top of the mounting post. The output shaft end of the motor three is fixedly connected to a bidirectional screw rod. The lower end of the bidirectional screw rod is rotatably connected to the upper end of the slider. The outer wall of the bidirectional screw rod is symmetrically threaded with upper and lower clamping plates. The two clamping plates are respectively located above and below the support column. The two clamping plates are both in contact with the vertical wall of the L-shaped plate. The lower end of the housing of the motor three is in contact with the top of the L-shaped plate.

[0014] Preferably, the clamping assembly further includes two arc-shaped grooves respectively opened on the corresponding walls of the two clamping plates, and both arc-shaped grooves correspond to the support column.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the mutual cooperation of the turning mechanism and the drilling mechanism, this lathe can not only perform turning operations on the brake disc, but also open a circular array of multiple groups of heat dissipation holes on the brake disc through four drill bits. Moreover, the arrangement of the four drill bits can be changed, that is, the centers of the four drill bits can be on a straight line, on an arc, and the centers of the four drill bits can be on arcs with different radian values. In addition, the distance between every two adjacent drill bits among the four drill bits can be synchronously adjusted, so as to meet the requirements for opening heat dissipation holes in different brake discs.

[0016] 2. The four drill bits can also open a group of heat dissipation holes on the surface of the brake disc at one time. Compared with the traditional method of opening heat dissipation holes one by one with a single drill bit, the flexibility, adaptability, and efficiency of drilling are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the turning mechanism of the present invention; Figure 3 is a schematic diagram of the structure at the annular electric slide table and the electric slide table II of the present invention; Figure 4 is a schematic diagram of the structure between the fixing plate and the four drill bits of the present invention; Figure 5 is a partial cross-sectional view at the housing and the fixing block of the present invention; Figure 6 is a schematic diagram of the structure at the guide post and the motor two of the present invention; Figure 7 is a schematic diagram of the structure at the upper end of the slider of the present invention; Figure 8 is a positional relationship diagram between the support column and the two clamping plates of the present invention; Figure 9 This is a display diagram in which the centers of the four drill bits of the present invention are on the same arc.

[0018] In the attached drawings, the components represented by each reference numeral are listed as follows: 1. Electric push rod one; 2. Fixed plate; 3. Support frame; 4. Motor one; 5. Electric turntable; 6. Bed body; 7. Fixed frame; 8. Electric slide table one; 9. Electric push rod two; 10. Brake disc body; 11. Turning tool; 12. Ring-shaped electric slide table; 13. Electric slide table two; 14. Drill bit; 15. Motor one; 16. Connecting rod; 17. Housing; 18. Fixed block; 19. Convex block; 20. Small electric push rod; 21. U-shaped block; 22. U-shaped plate; 23. U-shaped block; 24. Frame; 25. Stud; 26. Slide plate; 27. Chute; 28. Slide block; 29. L-shaped plate; 30. Bidirectional lead screw; 31. Motor two; 32. Guide post; 33. Clamping plate; 34. Motor three; 35. Support block; 36. Support pillar; 37. Connecting disc; 38. Spring; 39. Arc-shaped groove; 40. Bidirectional screw; 41. Mounting post. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: Please refer to Figure 1 - Figure 9 , a lathe for processing brake discs, including a bed body 6, a support frame 3 and an electric turntable 5 installed on the bed body 6. A turning mechanism is provided on the bed body 6. The upper end of the electric turntable 5 is attached to the brake disc body 10, and a drilling mechanism is provided above the electric turntable 5; The drilling mechanism includes a frame 24. The frame 24 is installed above the electric turntable 5 through a transmission mechanism. A housing 17 is fixedly installed at the lower end of the frame 24. Two slide plates 26 are slidably installed inside the housing 17 through a driving mechanism. The front ends of the two slide plates 26 are fixedly connected with U-shaped blocks 21. The upper ends of the two U-shaped blocks 21 are rotatably connected with U-shaped plates 22. The mutually remote ends of the two U-shaped plates 22 are slidably installed with U-shaped blocks 23 through an adjusting mechanism. The lower ends of the two U-shaped blocks 23 and the two U-shaped blocks 21 are fixedly installed with motors one 4. The output shaft ends of the four motors one 4 are fixedly connected with drill bits 14. An angle adjusting mechanism is provided between the frame 24 and the two U-shaped plates 22.

[0021] The turning mechanism includes a fixed frame 7, which is fixedly connected to the outer wall of the lathe bed 6. An electric slide table 8 is fixedly installed at the top of the fixed frame 7. An electric push rod 9 is fixedly installed on the workbench of the electric slide table 8. The telescopic shaft end of the electric push rod 9 is fixedly connected to a turning tool 11.

[0022] The transmission mechanism includes an annular electric slide table 12, which is fixedly installed at the inner top end of the support frame 3. An electric slide table 2 is fixedly installed on the workbench of the annular electric slide table 12. An electric push rod 1 is fixedly installed on the workbench of the electric slide table 2. The telescopic shaft end of the electric push rod 1 is fixedly connected to a fixing plate 2, and the lower end of the fixing plate 2 is fixedly connected to the upper end of the frame 24.

[0023] The driving mechanism includes a motor two 31, which is fixedly installed on one side wall of the housing 17. The output shaft of the motor two 31 movably penetrates through one side wall of the housing 17. The output shaft end of the motor two 31 is fixedly connected to a bidirectional lead screw 30. The end of the bidirectional lead screw 30 far from the motor two 31 is rotatably connected to the inner wall of the housing 17, and the bidirectional lead screw 30 is screwed through the inner walls of two sliding plates 26.

[0024] The adjusting mechanism includes a fixed block 18, which is fixedly connected to the front end of the U-shaped plate 22. A small electric push rod 20 is fixedly installed at the front end of the fixed block 18. The telescopic shaft end of the small electric push rod 20 is fixedly connected to a convex block 19. A chute 27 is opened at the front end of the fixed block 18 corresponding to the convex block 19. The protruding part of the convex block 19 is slidably matched with the chute 27. The end of the convex block 19 far from the small electric push rod 20 is fixedly connected to the front end of the U-shaped block 23.

[0025] The angle adjusting mechanism includes a motor one 15, which is fixedly installed at the lower end of the frame 24 far from the housing 17. The output shaft end of the motor one 15 is fixedly connected to a stud 25. The end of the stud 25 far from the motor one 15 is rotatably connected to the rear end of the housing 17. A slider 28 is threadedly sleeved on the outer wall of the stud 25. The upper edges of both side walls of the slider 28 are respectively attached to L-shaped plates 29. Connecting rods 16 are rotatably connected between the horizontal walls of the two L-shaped plates 29 and the rear ends of the two U-shaped plates 22 respectively. Elastic components are provided between the two L-shaped plates 29 and the slider 28.

[0026] The angle adjusting mechanism further includes a guide post 32. One end of the guide post 32 is fixedly connected to the rear end of the housing 17. The guide post 32 is located below the stud 25. The other end of the guide post 32 movably penetrates through the slider 28.

[0027] The elastic component includes a support block 35. The support block 35 is fixedly connected to the upper end of the slider 28 near the L-shaped plate 29. A support pillar 36 is slidably inserted through the inner wall of the support block 35. One end of the support pillar 36 is fixedly connected to the vertical wall of the L-shaped plate 29. The other end of the support pillar 36 is fixedly connected to a connection disk 37. A spring 38 is fixedly connected between the connection disk 37 and the support block 35. The spring 38 is slidably sleeved on the outer wall of the support pillar 36. A clamping component is provided on the outer side of the support pillar 36.

[0028] In this embodiment, first, the brake disc body 10 is fixed to the middle of the upper end of the electric turntable 5 from the inner side of the brake disc body 10 by an existing centering fixture. At this time, the center of the brake disc body 10 corresponds to the centers of the electric turntable 5 and the annular electric slide 12. Subsequently, starting the electric turntable 5 can drive the brake disc body 10 to rotate at a high speed. By starting the electric slide 8, the electric push rod 9 and the turning tool 11 can be driven to move upward or downward. By starting the electric push rod 9, the turning tool 11 can be driven to move towards the brake disc body 10 or move away from the brake disc body 10. Then, the turning tool 11 can perform turning operations on the upper surface of the brake disc body 10 until the operation is completed, and then the electric turntable 5 is turned off and the turning tool 11 is withdrawn.

[0029] The four drill bits 14 first form an arc shape, and the centers of the four drill bits 14 are all on an arc (as Figure 9 shown). Starting the motor 15 can drive the screw rod 25 to rotate. The screw rod 25 can drive the slider 28 to move towards the housing 17. The slider 28 will also slide on the outer wall of the guide post 32. The slider 28 can also drive the two connecting rods 16 to rotate outward synchronously. The two connecting rods 16 can drive the U-shaped plates 22 connected thereto to rotate on the corresponding U-shaped blocks 21. The turning directions of the two U-shaped plates 22 are opposite. The two U-shaped plates 22 can drive the fixed blocks 18, the small electric push rods 20, the convex blocks 19, the U-shaped blocks 23, the motor 4 and the drill bits 14 connected thereto to rotate together. Among the four drill bits 14, the two drill bits 14 in the middle do not move, while the two drill bits 14 at the edges will rotate. Then, the radian of the arc shape formed by the four drill bits 14 can be adjusted, and the two drill bits 14 at the edges can also rotate until the centers of the four drill bits 14 are on a straight line.

[0030] Starting the second starting motor 31 can drive the bidirectional lead screw 30 to rotate. The bidirectional lead screw 30 can drive two sliding plates 26 to slide away from each other inside the housing 17. The two sliding plates 26 can drive the U-shaped blocks 21 connected thereto to move together. The two U-shaped blocks 21 can drive the first motors 4 and the drill bits 14 connected thereto to move together. The two U-shaped blocks 21 can also drive the U-shaped plates 22 connected thereto to move together, and the two U-shaped plates 22 are moving away from each other. Then, the two connecting rods 16 will move away from each other. Each connecting rod 16 will drive the L-shaped plate 29 to move away from the slider 28. Each slider 28 will drive the support column 36 connected thereto to slide in the corresponding support block 35, and each support column 36 will drive the connecting disk 37 connected thereto to press the corresponding spring 38. At the same time, start two small electric push rods 20. The two small electric push rods 20 can drive the convex blocks 19 connected thereto to slide away from the corresponding U-shaped plates 22 in the corresponding chutes 27. The two convex blocks 19 can drive the U-shaped blocks 23 connected thereto to move together, and the two U-shaped blocks 23 are moving away from each other. The two U-shaped blocks 23 can drive the first motors 4 and the drill bits 14 connected thereto to move together. Then, the drill bits 14 under the two U-shaped blocks 23 are also moving away from each other. The drill bits 14 under the two U-shaped blocks 21 are also moving away from each other. Then, among the four drill bits 14, the distance between every two adjacent drill bits 14 will be enlarged synchronously.

[0031] Starting the second electric sliding table 13 can drive the first electric push rod 1, the fixing plate 2, the four drill bits 14 and other components connected under the fixing plate 2 to move left or right together. Then, the left and right positions of the four drill bits 14 can be adjusted so that the four drill bits 14 are centered and correspond to the annular area where the heat dissipation holes need to be opened on the brake disc body 10. Starting the first electric push rod 1 can drive the fixing plate 2, the four drill bits 14 and other components connected under the fixing plate 2 to move downward together. Starting the four first motors 4 can drive the four drill bits 14 to rotate synchronously. Then, four heat dissipation holes can be opened at one time in the annular area where the heat dissipation holes need to be opened on the brake disc body 10. The four heat dissipation holes are in a group. Subsequently, drive the fixing plate 2, the four drill bits 14 and other components connected under the fixing plate 2 to move upward together by the first electric push rod 1. Then, start the annular electric sliding table 12 to drive the second electric sliding table 13, the first electric push rod 1, the fixing plate 2, the four drill bits 14 and other components connected under the fixing plate 2 to rotate together. Then, multiple groups of heat dissipation holes can be opened in an annular array in the annular area where the heat dissipation holes need to be opened on the brake disc body 10.

[0032] In summary, the arrangement of the four drill bits 14 can be changed. That is, the centers of the four drill bits 14 can be on a straight line or on an arc, and the centers of the four drill bits 14 can be on arcs with different radian values. Moreover, the distance between each adjacent two of the four drill bits 14 can be adjusted synchronously. Then, the requirements for opening heat dissipation holes in different brake disc bodies 10 can be met, and the four drill bits 14 can open a set of heat dissipation holes on the surface of the brake disc body 10 at one time. Therefore, compared with the traditional method of using a single drill bit to open heat dissipation holes one by one, the flexibility, adaptability, and efficiency of drilling are improved.

[0033] Embodiment 2: Please refer to Figure 7 and Figure 8 , this embodiment further describes Embodiment 1. The clamping assembly includes a mounting post 41. The mounting post 41 is fixedly connected to the upper end of the slider 28 near the support block 35. A motor three 34 is fixedly installed at the top of the mounting post 41. The output shaft end of the motor three 34 is fixedly connected to a bidirectional screw 40. The lower end of the bidirectional screw 40 is rotatably connected to the upper end of the slider 28. The outer wall of the bidirectional screw 40 is symmetrically thread-sleeved with upper and lower clamping plates 33. The two clamping plates 33 are respectively located above and below the support post 36. Both clamping plates 33 are in contact with the vertical wall of the L-shaped plate 29. The lower end of the housing of the motor three 34 is in contact with the top of the L-shaped plate 29.

[0034] The clamping assembly further includes two arc-shaped grooves 39. The two arc-shaped grooves 39 are respectively opened on the corresponding walls of the two clamping plates 33. Both arc-shaped grooves 39 correspond to the support post 36.

[0035] In this embodiment, whenever the support post 36 moves or when the support post 36 does not need to move, starting the motor three 34 can drive the bidirectional screw 40 to rotate. The bidirectional screw 40 can drive the two clamping plates 33 to move closer to each other until the arc-shaped grooves 39 on the two clamping plates 33 are both in contact with the outer wall of the support post 36 and clamp the support post 36. This enables the L-shaped plate 29 rotatably connected to the connecting rod 16 to maintain a stable connection with the slider 28, avoiding the unstable elastic connection of the L-shaped plate 29 with the slider 28 only through the support block 35, the support post 36, the connecting disk 37, and the spring 38, and thus avoiding the occurrence of unstable phenomena caused by the vibration generated during the drilling operation of the four drill bits 14.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake disc processing lathe, comprising a bed (6) and a support frame (3) and an electric turntable (5) mounted on the bed (6), characterized in that: A turning mechanism is provided on the bed (6), a brake disc body (10) is attached to the upper end of the electric turntable (5), and a drilling mechanism is provided above the electric turntable (5); The drilling mechanism comprises a frame (24), the frame (24) being mounted above the electric turntable (5) via a transmission mechanism, a housing (17) being fixedly mounted at the lower end of the frame (24), two slide plates (26) being slidably mounted on the inner side of the housing (17) via a driving mechanism, the front ends of the two slide plates (26) being fixedly connected to a U-shaped block (21), the upper ends of the two U-shaped blocks (21) being rotatably connected to a U-shaped plate (22), the ends of the two U-shaped plates (22) being slidably mounted with a U-shaped block (23) away from each other via an adjustment mechanism, the lower ends of the two U-shaped blocks (23) and the two U-shaped blocks (21) being fixedly mounted with a motor (4), the output shaft ends of the four motors (4) being fixedly connected to a drill (14), and an angle adjustment mechanism being provided between the frame (24) and the two U-shaped plates (22).

2. A brake disc processing lathe according to claim 1, characterized in that: The turning mechanism comprises a fixed frame (7), the fixed frame (7) is fixedly connected to the outer wall of the bed (6), an electric slide (8) is fixedly mounted on the top of the fixed frame (7), an electric push rod (9) is fixedly mounted on the working table of the electric slide (8), and a turning tool (11) is fixedly connected to the telescopic shaft end of the electric push rod (9).

3. The brake disc processing lathe according to claim 1, characterized in that: The transmission mechanism comprises an annular electric slide (12), the annular electric slide (12) being fixedly mounted on the inner top end of the support frame (3), an electric slide 2 (13) being fixedly mounted on the working table of the annular electric slide (12), an electric push rod 1 (1) being fixedly mounted on the working table of the electric slide 2 (13), the telescopic shaft end of the electric push rod 1 (1) being fixedly connected to a fixed plate (2), and the lower end of the fixed plate (2) being fixedly connected to the upper end of the frame (24).

4. The brake disc processing lathe according to claim 1, characterized in that: The driving mechanism comprises a second motor (31), wherein the second motor (31) is fixedly mounted on a side wall of the housing (17), an output shaft of the second motor (31) movably passes through a side wall of the housing (17), a bidirectional screw rod (30) is fixedly connected to the output shaft end of the second motor (31), an end of the bidirectional screw rod (30) away from the second motor (31) is rotatably connected to the inner wall of the housing (17), and the bidirectional screw rod (30) passes through and is screwed into the inner walls of the two slide plates (26).

5. The brake disc processing lathe according to claim 1, characterized in that: The adjustment mechanism comprises a fixed block (18), wherein the fixed block (18) is fixedly connected to the front end of a U-shaped plate (22), a small electric push rod (20) is fixedly mounted on the front end of the fixed block (18), a convex block (19) is fixedly connected to the telescopic shaft end of the small electric push rod (20), a slide groove (27) is provided at the front end of the fixed block (18) corresponding to the convex block (19), a protrusion of the convex block (19) is slidably engaged with the slide groove (27), and an end of the convex block (19) away from the small electric push rod (20) is fixedly connected to the front end of the U-shaped block (23).

6. The brake disc processing lathe according to claim 1, characterized in that: The angle adjustment mechanism comprises a motor 1 (15), wherein the motor 1 (15) is fixedly mounted at the lower end of the frame (24) away from the housing (17), a stud (25) is fixedly connected to the output shaft end of the motor 1 (15), an end of the stud (25) away from the motor 1 (15) is rotatably connected to the rear end of the housing (17), a slider (28) is threadedly sleeved on the outer wall of the stud (25), L-shaped plates (29) are fitted at the upper edges of both side walls of the slider (28), connecting rods (16) are rotatably connected between the horizontal walls of the two L-shaped plates (29) and the rear ends of the two U-shaped plates (22), and elastic components are provided between the two L-shaped plates (29) and the slider (28).

7. A brake disc processing lathe according to claim 6, characterized in that: The angle adjustment mechanism further comprises a guide column (32), one end of which is fixedly connected to the rear end of the housing (17), the guide column (32) is located below the stud (25), and the other end of which movably passes through the slider (28).

8. The brake disc processing lathe according to claim 6, characterized in that: The elastic component comprises a support block (35), the support block (35) being fixedly connected to the upper end of the slider (28) near the L-shaped plate (29), a support column (36) being slidably inserted through the inner wall of the support block (35), one end of the support column (36) being fixedly connected to the vertical wall of the L-shaped plate (29), the other end of the support column (36) being fixedly connected to a connecting plate (37), a spring (38) being fixedly connected between the connecting plate (37) and the support block (35), the spring (38) being slidably sleeved on the outer wall of the support column (36), and a clamping component being provided on the outer side of the support column (36).

9. A brake disc processing lathe according to claim 8, characterized in that: The clamping assembly includes a mounting column (41), wherein the mounting column (41) is fixedly connected to the upper end of the slider (28) near the support block (35), and a motor three (34) is fixedly installed on the top of the mounting column (41), and a bidirectional screw (40) is fixedly connected to the output shaft end of the motor three (34), and the lower end of the bidirectional screw (40) is rotatably connected to the upper end of the slider (28), and the outer wall of the bidirectional screw (40) is symmetrically threaded with a clamping plate (33) at the upper and lower parts, and the two clamping plates (33) are respectively located at the upper and lower parts of the pillar (36), and the two clamping plates (33) are both in contact with the vertical wall of the L-shaped plate (29), and the lower end of the casing of the motor three (34) is in contact with the top of the L-shaped plate (29).

10. A brake disc machining lathe according to claim 9, characterized in that: The clamping assembly further comprises two arc-shaped grooves (39), the two arc-shaped grooves (39) being respectively formed on corresponding wall surfaces of the two clamping plates (33), and the two arc-shaped grooves (39) both corresponding to the pillars (36).

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