Multi-edge positive rake angle brake disc inserting face finish turning blade edge grinding process and edge grinding device

Abstract

The invention relates to a multi-edge positive rake angle brake disc inserting face finish turning blade edge grinding device which comprises a linear module frame, a feeding mechanism, a clamping mechanism and an edge grinding mechanism. A feeding mechanism used for positioning and feeding blades, a clamping mechanism used for clamping and fixing the blades and a sharpening mechanism used for sharpening the two sides of the blades at the same time are mounted on the linear module frame, the feeding mechanism comprises a first mounting frame and a second mounting frame, and a rotating disc is rotationally mounted on the first mounting frame; a plurality of stacking hoppers are installed on the material rotating disc at equal angles, and a plurality of material pushing grooves are formed in the positions, located on the bottom sides of the stacking hoppers, of the material rotating disc at equal angles; the blades are conveniently stacked and stored through the multiple stacking hoppers, the stacked blades are sequentially and singly fed through the feeding mechanism, positioning and limiting of the blades are achieved, the blades can be conveniently matched with the clamping mechanism, and automatic feeding and positioning, clamping and fixing of the blades are achieved.

Description

Technical Field

[0001] This invention relates to the field of CBN cutting tool processing technology, and in particular to a grinding process and grinding device for multi-blade positive rake angle brake disc insert surface precision turning cutting tools. Background Technology

[0002] With the rapid development of China's automotive industry, the output and quality of automobiles are constantly improving. The amount of machining and metal cutting work related to automobile manufacturing, especially the manufacturing of components such as brake discs, brake drums, engines, transmissions, drive shafts, and axles, has surged. The demand for cutting tools closely related to machining and metal cutting is constantly rising. At the same time, the diversification of engine and component structures and materials has placed higher demands on the geometry and materials of related cutting tools. Considering the requirements of the automotive brake disc industry for cutting tools, the tools must have the characteristics of high efficiency, high quality, high stability, and specialization. According to the current requirements of brake disc faceting process, a suitable insert shape is selected. Under the premise of achieving high-speed cutting and vibration reduction, the cutting quantity is maximized. Therefore, the designed insert specifications are with C-angle, 3° positive rake angle, and 8-angle 16-flute on both sides.

[0003] When sharpening blades using a sharpening device, manual loading and fixing of the blades to the sharpening area are required, resulting in low efficiency in both sharpening and loading. Furthermore, the blades need to be fixed in multiple directions and at multiple points during sharpening; otherwise, blade misalignment and vibration can easily occur, leading to low sharpening accuracy. Existing sharpening devices grind each blade edge individually, while the new blades use an 8-angle, 16-edge design on the reverse side, further reducing sharpening efficiency and affecting the overall processing efficiency of the blades. Summary of the Invention

[0004] The problem solved by this invention is to provide a grinding process and grinding device for multi-blade front angle brake disc insert precision turning inserts. It solves the technical problem that when grinding inserts with a grinding device, manual loading and fixing of the inserts to the grinding position are required, resulting in low grinding and loading efficiency. In addition, during grinding, the inserts need to be fixed in multiple directions and at multiple points, otherwise the inserts are prone to displacement and vibration, resulting in low grinding accuracy. The existing grinding device grinds the insert blades one by one, while the new insert uses 8 corners and 16 blades on the reverse side, which leads to low grinding efficiency and affects the overall processing efficiency of the inserts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-blade positive front angle brake disc insert precision turning blade sharpening device includes a linear module frame, a feeding mechanism, a clamping mechanism, and a sharpening mechanism. The linear module frame is respectively equipped with a feeding mechanism for positioning and feeding the blade, a clamping mechanism for clamping and fixing the blade, and a sharpening mechanism for simultaneously sharpening both sides of the blade. The feeding mechanism includes a first mounting frame and a second mounting frame. A rotating disk is rotatably mounted on the first mounting frame. Several stacking hoppers are mounted at equal angles on the rotating disk. Several pushing grooves are opened at equal angles on the rotating disk and located at the bottom side of the stacking hoppers. A positioning groove is symmetrically opened in the center of the pushing groove. Lifting columns are symmetrically installed in the positioning groove and raised and lowered. An L-shaped pushing block is slidably installed in the pushing groove, and the pushing block is located between two lifting columns.

[0007] Preferably, a first motor is installed on the bottom side of the first mounting frame, and the output end of the first motor is connected to the center of the circular rotating material tray. The stacking hopper includes two symmetrically arranged U-shaped plates, and the blades are stacked between the two U-shaped plates. The bottom side of the U-shaped plates has a discharge port.

[0008] Preferably, a first cylinder is vertically mounted on the first mounting frame, and a lifting seat is mounted on the top telescopic end of the first cylinder. Two lifting columns are symmetrically mounted on the top side of the lifting seat, and a second cylinder is horizontally mounted on the first mounting frame.

[0009] Preferably, a support plate is mounted on the top side of the second mounting bracket via a support column, a slide rail is mounted on the top side of the support plate, a slide seat is slidably mounted on the slide rail, and the top side of the slide seat is connected to a pusher block. The pusher block is connected to the telescopic end of the second cylinder via a connecting arm. Two support seats are mounted on the top side of the support plate near the rotating disc, and the two support seats are symmetrically arranged with respect to the center line of the slide rail.

[0010] Preferably, a pneumatic turntable is installed on the side wall of the support plate, and a rotating clamp is installed on the rotating end of the pneumatic turntable. The rotating clamp has a material groove for placing the blade, and clamping grooves are symmetrically opened in the middle of both sides of the material groove.

[0011] Preferably, the clamping mechanism includes a slide that is slidably mounted to the linear module frame. A third cylinder is vertically mounted inside the slide, and a lifting platform is mounted on the telescopic end of the third cylinder. A fourth cylinder is horizontally mounted on the bottom side of the lifting platform. Movable grippers are mounted on the telescopic ends of the two sides of the fourth cylinder. A support shaft is rotatably mounted on the opposite side of the two movable grippers, and a clamping block is mounted on the end of the support shaft.

[0012] Preferably, a second motor is installed on the outer side of one of the movable grippers, and the output end of the second motor is connected to the support shaft. Side plates are installed on the side walls of the two movable grippers, and the two side plates are located on opposite sides of the two movable grippers. A fifth cylinder is horizontally installed on the side plate. A side wall limiting plate that contacts and limits the movement of the blade side wall is installed on the telescopic end of the fifth cylinder. An end corner limiting plate that contacts and limits the movement of the blade end corner is provided on the side wall limiting plate.

[0013] Preferably, the sharpening mechanism includes a mounting base, with rotating grooves at both ends of the top side of the mounting base, and a rotating arm rotatably mounted in the rotating grooves. A U-shaped seat is mounted at the top of the rotating arm, and a third motor is mounted in the U-shaped seat. A grinding roller is mounted at the output end of the third motor.

[0014] Preferably, a fourth motor is installed on the outside of the mounting base, a first rotating tooth is installed at the output end of the fourth motor, a drive shaft is installed through the bottom end of the rotating arm and the drive shaft is connected to the bearing of the mounting base, a second rotating tooth is installed at the end of the mounting base, both of the second rotating teeth mesh with the first rotating tooth, and the two second rotating teeth are symmetrically arranged on both sides of the first rotating tooth.

[0015] A grinding process for multi-blade positive front angle brake disc insert surface precision turning tool, the specific operation steps of which are as follows:

[0016] Step 1: The cube-shaped blades are stacked in the hopper of the feeding mechanism. At this time, the first motor drives the rotating disc to rotate, thereby changing the position of the hopper. The first cylinder drives the lifting seat to move upward until the lifting column is locked into the positioning groove to achieve the limit. At the same time, the blades in the hopper are lifted. Then, the second cylinder retracts, and the connecting arm drives the push block and the slide to move along the slide rail. At this time, the push block passes under the blade and is located in the push groove. The pneumatic turntable drives the rotating clamp to rotate. The rotating groove corresponds to the support seat. The first cylinder drives the lifting column to move downward. The second cylinder extends and retracts, driving the push block to move horizontally. The blades at the bottom of the hopper are pushed into the groove of the rotating clamp through the discharge port and the support seat. Then, the rotating clamp rotates 90° to the initial position under the action of the pneumatic turntable. After the blades are clamped and removed by the clamping mechanism, the above operation is repeated to complete the automatic feeding of blades.

[0017] Step 2: The slide moves along the linear module frame. When the clamping mechanism is above the feeding mechanism, the third cylinder drives the lifting platform to move down until the clamping blocks are located at the center of both sides of the blade. At this time, the fourth cylinder drives the movable jaw to move and clamp the blade between the two clamping blocks. Then the third cylinder retracts, and the slide moves to the top of the sharpening mechanism. The height of the blade is adjusted by the third cylinder, and the blade is moved down between the two grinding rollers. At this time, the second motor drives the blade to rotate 45°, adjusting the sharpening point of the blade downward. After sharpening, the second motor drives the blade to rotate 90°, and the four corners of the blade are sharpened in sequence. After each rotation, the fifth cylinder drives the side wall limiting plate to move. The two side wall limiting plates contact different sides of the blade, thereby limiting the blade. The end corner limiting plate contacts and limits the blade at the blade end corner.

[0018] Step 3: The fourth motor drives the first rotating tooth to rotate, which in turn engages with the second rotating tooth to drive the transmission shaft to rotate. At this time, the rotating arm rotates in the rotating groove to achieve synchronous rotation of the grinding rollers. The two grinding rollers rotate 3° respectively. The clamping mechanism drives the blade to move through the two grinding rollers. The third motor drives the two grinding rollers to rotate to achieve simultaneous grinding of both sides of the blade. The blade tip is ground to a 3° positive rake angle. With the addition of the C angle, 16 cutting edges can be formed on both sides.

[0019] The beneficial effects of the present invention are: multiple stacking hoppers facilitate the stacking and storage of blades, the feeding mechanism sequentially and individually feeds the stacked blades, and achieves positioning and limiting of the blades, which facilitates cooperation with the clamping mechanism to achieve automatic feeding and positioning and clamping of the blades.

[0020] In conjunction with the feeding mechanism, the clamping block is clamped at the center of the blade, and the second motor enables multi-angle adjustment of the blade. This allows for continuous adjustment of the blade's position and coordination with the sharpening mechanism during sharpening, completing the sharpening of all blade tip areas. The fifth cylinder drives the side wall limiting plates to move, with the two side wall limiting plates contacting different sides of the blade, and the end corner limiting plate contacting and limiting the blade's end corner. This prevents the blade from wobbling left and right or rotating during sharpening, and works together with the clamping block at the center to achieve multi-point limiting and fixing of the blade.

[0021] The fourth motor drives the first rotating tooth to rotate, which in turn engages with the second rotating tooth to drive the transmission shaft to rotate. At this time, the rotating arm rotates in the rotating groove, realizing the synchronous rotation of the grinding rollers. Subsequently, the two grinding rollers complete the sharpening of the blade tip on different sides, improving the sharpening efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the first structure of the feeding mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the second structure of the feeding mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the clamping mechanism and the sharpening mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of the clamping mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the mounting base of the present invention;

[0028] Figure 7 This is a side view of the blade of the present invention after sharpening.

[0029] Legend:

[0030] 1. Linear module frame; 2. Feeding mechanism; 3. Clamping mechanism; 4. Sharpening mechanism; 5. First mounting frame; 6. Second mounting frame; 7. First motor; 8. Turntable; 9. Stacking hopper; 10. Pushing groove; 11. Positioning groove; 12. First cylinder; 13. Second cylinder; 14. Lifting seat; 15. Lifting column; 16. Support column; 17. Support plate; 18. Slide rail; 19. Slide seat; 20. Connecting arm; 21. Support seat; 22. Pushing block; 23. Pneumatic turntable; 24. Rotary clamp; 5. Material trough; 26. Clamping groove; 27. Slide frame; 28. Lifting platform; 29. ​​Third cylinder; 30. Fourth cylinder; 31. Movable gripper; 32. Support shaft; 33. Clamping block; 34. Second motor; 35. Side plate; 36. Fifth cylinder; 37. Side wall limiting plate; 38. End corner limiting plate; 39. Mounting seat; 40. Rotary groove; 41. Rotary arm; 42. U-shaped seat; 43. Third motor; 44. Grinding roller; 45. Fourth motor; 46. First rotating gear; 47. Drive shaft; 48. Second rotating gear. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Specific implementation examples are given below.

[0033] See Figures 1 to 7A multi-blade front angle brake disc insert precision turning blade sharpening device includes a linear module frame 1, a feeding mechanism 2, a clamping mechanism 3 and a sharpening mechanism 4. The linear module frame 1 is respectively equipped with a feeding mechanism 2 for blade positioning and feeding, a clamping mechanism 3 for blade clamping and fixing, and a sharpening mechanism 4 for sharpening both sides of the blade simultaneously.

[0034] The feeding mechanism 2 includes a first mounting frame 5 and a second mounting frame 6. A rotating material tray 8 is rotatably mounted on the first mounting frame 5. Several stacking hoppers 9 are mounted on the rotating material tray 8 at equal angles. Several pushing grooves 10 are opened at equal angles on the rotating material tray 8 and located on the bottom side of the stacking hoppers 9. A positioning groove 11 is symmetrically opened in the middle of the pushing groove 10. Lifting columns 15 are symmetrically installed in the positioning groove 11. An L-shaped pushing block 22 is slidably installed in the pushing groove 10, and the pushing block 22 is located between two lifting columns 15. A first motor 7 is mounted on the bottom side of the first mounting frame 5. The output end of the first motor 7 is connected to the center of the circular rotating material tray 8. The stacking hoppers 9 include two A U-shaped plate is symmetrically arranged, with blades stacked between the two U-shaped plates. A discharge port is opened on the bottom side of the U-shaped plate. A first cylinder 12 is vertically mounted on the first mounting frame 5, and a lifting seat 14 is mounted on the top telescopic end of the first cylinder 12. Two lifting columns 15 are symmetrically mounted on the top side of the lifting seat 14. A second cylinder 13 is horizontally mounted on the first mounting frame 5. A support plate 17 is mounted on the top side of the second mounting frame 6 via a support column 16. A slide rail 18 is mounted on the top side of the support plate 17, and a slide block 19 is slidably mounted on the slide rail 18. The top side of the slide block 19 is connected to a pusher block 22, which is connected to the telescopic end of the second cylinder 13 via a connecting arm 20. The support plate 17 is connected to the top side of the rotating disk 8, where two support seats 21 are installed. The two support seats 21 are symmetrically arranged about the center line of the slide rail 18. A pneumatic turntable 23 is installed on the side wall of the support plate 17. A rotating clamp 24 is installed on the rotating end of the pneumatic turntable 23. The rotating clamp 24 has a material groove 25 for placing the blade. The material groove 25 has symmetrical clamping grooves 26 in the middle of both sides. The rotating disk 8 is rotated by the first motor 7, thereby changing the position of the stacking hopper 9. The lifting seat 14 is moved upward by the first cylinder 12 until the lifting column 15 is locked into the positioning groove 11 to achieve the limit. At the same time, the material inside the stacking hopper 9 is moved upward. The blade is lifted, and at this time, the second cylinder 13 retracts, which drives the pusher block 22 and the slide block 19 to move along the slide rail 18 via the connecting arm 20. At this time, the pusher block 22 passes under the blade and is located in the pusher groove 10. The pneumatic turntable 23 works to drive the rotating clamp 24 to rotate. The rotating material groove 25 corresponds to the support seat 21. The first cylinder 12 drives the lifting column 15 to move down. The second cylinder 13 extends and retracts to drive the pusher block 22 to move horizontally, pushing the blade at the bottom of the stacking hopper 9 through the discharge port and the support seat 21 into the material groove 25 of the rotating clamp 24. Then, the rotating clamp 24 rotates 90° to the initial position under the action of the pneumatic turntable 23.

[0035] The clamping mechanism 3 includes a slide 27 slidably mounted to the linear module frame 1. A third cylinder 29 is vertically mounted inside the slide 27, and a lifting platform 28 is mounted on the telescopic end of the third cylinder 29. A fourth cylinder 30 is horizontally mounted on the bottom side of the lifting platform 28. Movable grippers 31 are mounted on the telescopic ends of the fourth cylinder 30 on both sides. The third cylinder 29 drives the lifting platform 28 to move downward until the clamping blocks 33 are located at the center of both sides of the blade. At this time, the fourth cylinder 30 drives the movable grippers 31 to move, clamping and fixing the blade between the two clamping blocks 33. A support shaft 32 is rotatably mounted on the opposite side of each of the two movable grippers 31, and a clamping block 33 is mounted on the end of the support shaft 32. A second motor 34 is mounted on the outside of one of the movable grippers 31. The output end of the second motor 34 is connected to the support shaft 32. The second motor 34 drives the blade to rotate, which facilitates the rotation adjustment of the blade. Side plates 35 are installed on the side walls of the two movable grippers 31, and the two side plates 35 are located on opposite sides of the two movable grippers 31. A fifth cylinder 36 is horizontally installed on the side plate 35. The extension end of the fifth cylinder 36 is equipped with a side wall limiting plate 37 that contacts and limits the blade side wall. An end corner limiting plate 38 that contacts and limits the blade end corner is provided on the side wall limiting plate 37. The fifth cylinder 36 drives the side wall limiting plate 37 to move, and the two side wall limiting plates 37 contact different sides of the blade, thereby limiting the blade. The end corner limiting plate 38 contacts and limits the blade end corner.

[0036] The sharpening mechanism 4 includes a mounting base 39. Rotary slots 40 are formed at both ends of the top side of the mounting base 39, and a rotating arm 41 is rotatably mounted within each slot 40. A U-shaped seat 42 is mounted at the top of the rotating arm 41, and a third motor 43 is mounted within the U-shaped seat 42. A grinding roller 44 is mounted at the output end of the third motor 43. A fourth motor 45 is mounted on the outside of the mounting base 39, and a first rotating tooth 46 is mounted at the output end of the fourth motor 45. A drive shaft 47 is threaded through the bottom end of the rotating arm 41 and is connected to the mounting base 39 by a bearing. A second rotating tooth is mounted at the end of the mounting base 39. 48. Both second rotating teeth 48 mesh with the first rotating tooth 46, and the two second rotating teeth 48 are symmetrically arranged on both sides of the first rotating tooth 46. The first rotating tooth 46 is rotated by the operation of the fourth motor 45, and the meshing second rotating teeth 48 cooperate to drive the transmission shaft 47 to rotate. At this time, the rotating arm 41 rotates in the rotating groove 40 to realize the synchronous rotation of the grinding roller 44. The two grinding rollers 44 rotate 3° respectively, and the blade is driven to move through the two grinding rollers 44 through the clamping mechanism 3. The third motor 43 drives the two grinding rollers 44 to rotate to realize the simultaneous grinding of both sides of the blade.

[0037] A grinding process for multi-blade positive front angle brake disc insert surface precision turning tool, the specific operation steps of which are as follows:

[0038] Step 1: The cube-shaped blades are stacked in the hopper 9 of the feeding mechanism 2. At this time, the first motor 7 operates to rotate the rotating disc 8, thereby changing the position of the hopper 9. The first cylinder 12 operates to drive the lifting seat 14 to move upward until the lifting column 15 is engaged in the positioning groove 11 to achieve the limit. At the same time, the blades in the hopper 9 are lifted. At this time, the second cylinder 13 retracts, and the connecting arm 20 drives the pusher block 22 and the slide block 19 to move along the slide rail 18. At this time, the pusher block 22 passes under the blade and is located at the pusher. Inside the material trough 10, the pneumatic turntable 23 drives the rotating clamp 24 to rotate. The rotating material trough 25 corresponds to the support seat 21. The first cylinder 12 drives the lifting column 15 to move down. The second cylinder 13 extends and retracts to drive the pusher block 22 to move horizontally, pushing the blade at the bottom of the stacking hopper 9 through the discharge port and the support seat 21 into the material trough 25 of the rotating clamp 24. Then, the rotating clamp 24 rotates 90° to the initial position under the action of the pneumatic turntable 23. After the blade is clamped and removed by the clamping mechanism 3, the above operation is repeated to complete the automatic feeding of the blade.

[0039] Step 2: The slide 27 moves along the linear module frame 1. When the clamping mechanism 3 is above the feeding mechanism 2, the lifting platform 28 is moved down by the third cylinder 29 until the clamping block 33 is located at the center of both sides of the blade. At this time, the movable jaw 31 is moved by the fourth cylinder 30 to clamp and fix the blade between the two clamping blocks 33. Then the third cylinder 29 retracts, and the slide 27 moves to the top of the sharpening mechanism 4. The height of the blade is adjusted by the third cylinder 29, and the blade is moved down between the two grinding rollers 44. At this time, the blade is rotated 45° by the second motor 34 to adjust the sharpening point of the blade downward. After sharpening, the blade is rotated 90° by the second motor 34 to sharpen the four corners of the blade in sequence. After each rotation, the side wall limiting plate 37 is moved by the fifth cylinder 36. The two side wall limiting plates 37 contact different sides of the blade to limit the blade. The end corner limiting plate 38 contacts and limits the blade at the end corner.

[0040] Step 3: The fourth motor 45 drives the first rotating tooth 46 to rotate, which in turn drives the transmission shaft 47 to rotate. At this time, the rotating arm 41 rotates in the rotating groove 40, realizing the synchronous rotation of the grinding rollers 44. The two grinding rollers 44 rotate 3° respectively. The clamping mechanism 3 drives the blade to move through the two grinding rollers 44. The third motor 43 drives the two grinding rollers 44 to rotate, realizing the simultaneous grinding of both sides of the blade. The blade tip is ground to a 3° positive rake angle. With the addition of the C angle, 16 cutting edges can be formed on both sides.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-edge positive rake angle brake disc facing finish turning insert blade sharpening device, characterized by, The system includes a linear module frame (1), a feeding mechanism (2), a clamping mechanism (3), and a sharpening mechanism (4). The linear module frame (1) is equipped with a feeding mechanism (2) for positioning and feeding the blade, a clamping mechanism (3) for clamping and fixing the blade, and a sharpening mechanism (4) for simultaneously sharpening both sides of the blade. The feeding mechanism (2) includes a first mounting frame (5) and a second mounting frame (6). A rotating material tray (8) is rotatably mounted on the first mounting frame (5). Several material hoppers (9) are installed at equal angles on the material transfer plate (8). Several material pushing grooves (10) are opened at equal angles on the material transfer plate (8) and located on the bottom side of the material hoppers (9). A positioning groove (11) is symmetrically opened in the middle of the material pushing groove (10). Lifting columns (15) are symmetrically installed in the positioning groove (11). An L-shaped pushing block (22) is slidably installed in the material pushing groove (10), and the pushing block (22) is located between two lifting columns (15).

2. A multi-edge positive rake angle brake disc facing finisher blade sharpening device according to claim 1, wherein, The first mounting bracket (5) is equipped with a first motor (7) on its bottom side. The output end of the first motor (7) is connected to the center of the circular rotating material tray (8). The stacking hopper (9) includes two symmetrically arranged U-shaped plates, and the blades are stacked between the two U-shaped plates. The bottom side of the U-shaped plates is provided with a discharge port.

3. The device according to claim 2, wherein the device is characterized by: A first cylinder (12) is vertically mounted on the first mounting frame (5), and a lifting seat (14) is mounted on the top telescopic end of the first cylinder (12). Two lifting columns (15) are symmetrically mounted on the top side of the lifting seat (14). A second cylinder (13) is horizontally mounted on the first mounting frame (5).

4. The multi-edge positive rake angle brake disc facing finish machining insert sharpening device according to claim 3, characterized in that, The second mounting bracket (6) has a support plate (17) mounted on its top side via a support column (16). The support plate (17) has a slide rail (18) mounted on its top side. A slide seat (19) is slidably mounted on the slide rail (18), and the top side of the slide seat (19) is connected to the push block (22). The push block (22) is connected to the telescopic end of the second cylinder (13) via a connecting arm (20). Two support seats (21) are mounted on the top side of the support plate (17) near the rotating disc (8), and the two support seats (21) are symmetrically arranged with respect to the center line of the slide rail (18).

5. The device according to claim 4, wherein, A pneumatic turntable (23) is installed on the side wall of the support plate (17). A rotating clamp (24) is installed on the rotating end of the pneumatic turntable (23). A material groove (25) for placing the blade is opened on the rotating clamp (24), and clamping grooves (26) are symmetrically opened on the middle of both sides of the material groove (25).

6. The multi-edge positive rake angle brake disc facing finish machining insert sharpening device of claim 1, wherein, The clamping mechanism (3) includes a slide (27) that is slidably mounted to the linear module frame (1). A third cylinder (29) is vertically mounted inside the slide (27), and a lifting platform (28) is mounted on the telescopic end of the third cylinder (29). A fourth cylinder (30) is horizontally mounted on the bottom side of the lifting platform (28). Movable grippers (31) are mounted on the telescopic ends of the two sides of the fourth cylinder (30). A support shaft (32) is rotatably mounted on the opposite side of the two movable grippers (31), and a clamping block (33) is mounted on the end of the support shaft (32).

7. The insert sharpening device for a multi-edge positive-rake-wheel disc facing finish machining according to claim 6, characterized in that, A second motor (34) is installed on the outside of one of the movable grippers (31), and the output end of the second motor (34) is connected to the support shaft (32). Side plates (35) are installed on the side walls of the two movable grippers (31), and the two side plates (35) are located on opposite sides of the two movable grippers (31). A fifth cylinder (36) is horizontally installed on the side plate (35). A side wall limiting plate (37) that contacts and limits the blade side wall is installed on the extension end of the fifth cylinder (36). An end corner limiting plate (38) that contacts and limits the blade end corner is provided on the side wall limiting plate (37).

8. The device according to claim 7, wherein, The grinding mechanism (4) includes a mounting base (39), with rotating grooves (40) at both ends of the top side of the mounting base (39), and a rotating arm (41) is rotatably mounted in the rotating groove (40). A U-shaped seat (42) is mounted on the top of the rotating arm (41), and a third motor (43) is mounted in the U-shaped seat (42). A grinding roller (44) is mounted on the output end of the third motor (43).

9. The device according to claim 8, wherein, A fourth motor (45) is installed on the outside of the mounting base (39). A first rotating tooth (46) is installed at the output end of the fourth motor (45). A transmission shaft (47) is installed through the bottom end of the rotating arm (41), and the transmission shaft (47) is connected to the mounting base (39) by a bearing. A second rotating tooth (48) is installed at the end of the mounting base (39). Both second rotating teeth (48) mesh with the first rotating tooth (46), and the two second rotating teeth (48) are symmetrically arranged on both sides of the first rotating tooth (46).

10. A grinding process for a multi-blade positive rake angle brake disc insert surface precision turning tool, applicable to the grinding device for a multi-blade positive rake angle brake disc insert surface precision turning tool as described in any one of claims 1 to 9, characterized in that, The specific operating steps of this process are as follows: Step 1: The cube-shaped blades are stacked in the hopper (9) of the feeding mechanism (2). At this time, the first motor (7) works to rotate the rotating disk (8), thereby changing the position of the hopper (9). The first cylinder (12) drives the lifting seat (14) to move upward until the lifting column (15) is locked into the positioning groove (11) to achieve the limit. At the same time, the blades in the hopper (9) are lifted. At this time, the second cylinder (13) retracts, and the connecting arm (20) drives the pusher block (22) and the slide block (19) to move along the slide rail (18). At this time, the pusher block (22) passes under the blade and is located at the pusher. Inside the material trough (10), the pneumatic turntable (23) drives the rotating clamp (24) to rotate. The rotating material trough (25) corresponds to the support seat (21). The first cylinder (12) drives the lifting column (15) to move down. The second cylinder (13) extends and retracts to drive the pusher block (22) to move horizontally. The blade at the bottom of the stacking hopper (9) passes through the discharge port and the support seat (21) and is pushed into the material trough (25) of the rotating clamp (24). Then, the rotating clamp (24) rotates 90° to the initial position under the action of the pneumatic turntable (23). After the blade is clamped and removed by the clamping mechanism (3), the above operation is repeated to complete the automatic feeding of the blade. Step 2: The slide (27) moves along the linear module frame (1). When the clamping mechanism (3) is above the loading mechanism (2), the lifting platform (28) is moved down by the third cylinder (29) until the clamping block (33) is located at the center of both sides of the blade. At this time, the movable jaw (31) is moved by the fourth cylinder (30) to clamp and fix the blade between the two clamping blocks (33). Then the third cylinder (29) retracts, the slide (27) moves to above the sharpening mechanism (4), and the height of the blade is adjusted by the third cylinder (29) to hold the blade. The blade is moved down between the two grinding rollers (44), and at this time, the second motor (34) drives the blade to rotate 45°, adjusting the grinding point of the blade downward. After grinding, the second motor (34) drives the blade to rotate 90°, and the four corners of the blade are ground in sequence. After each rotation, the fifth cylinder (36) drives the side wall limiting plate (37) to move. The two side wall limiting plates (37) contact different sides of the blade respectively, thereby limiting the blade. The end corner limiting plate (38) contacts the blade end corner for limiting. Step 3: The first rotating tooth (46) is driven to rotate by the fourth motor (45), which in turn drives the transmission shaft (47) to rotate in conjunction with the meshing second rotating tooth (48). At this time, the rotating arm (41) rotates in the rotating groove (40) to achieve synchronous rotation of the grinding roller (44). The two grinding rollers (44) rotate 3° respectively. The blade is driven to move through the two grinding rollers (44) by the clamping mechanism (3). The third motor (43) drives the two grinding rollers (44) to rotate to achieve simultaneous grinding of both sides of the blade. The blade tip is ground to a 3° positive rake angle. With the addition of the C angle, 16 cutting edges can be formed on both sides.

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