A grinding device for camshaft production

Abstract

This invention discloses a grinding device for camshaft production, relating to the technical field of camshaft production equipment. It includes a base, a grinding assembly, a grinding table drive mechanism, a grinding table, a fixing assembly, and a measurement and control assembly. A column is mounted on one side of the base, and the grinding assembly is fixed to the column. The grinding table drive mechanism is located on the base, and the grinding table is fixed to the grinding table drive mechanism. The fixing assembly is mounted on the grinding table and fixes a camshaft preform. The measurement and control assembly is located on the grinding table and situated to one side of the fixing assembly. The measurement and control assembly includes a first positioning component, a second positioning component, a measurement and control box, and a sound collector. The first positioning component is used to position the grinding assembly, and the second positioning component is used to position the height of the camshaft preform. This invention can control the movement range of the grinding assembly during the grinding process, improving grinding accuracy.

Description

Technical Field

[0001] This invention relates to the field of camshaft production equipment technology, specifically to a grinding device for camshaft production. Background Technology

[0002] The camshaft is a component in a piston engine, its function being to control the opening and closing of the valves. The design of the camshaft places high demands on its strength and support, and its material is generally high-quality alloy steel or alloy steel. Because the valve movement pattern affects the power and operating characteristics of an engine, camshaft design plays a crucial role in the engine design process.

[0003] The main body of a camshaft is a cylindrical rod approximately the same length as the cylinder bank. Several cams are fitted onto it to drive the valves. Camshaft machining primarily involves grinding. The shaft body is rough-machined, and the cams are then fine-machined. Due to factors such as the properties of the grinding wheel, the workpiece material, grinding parameters, machine tool vibration, and wheel dressing, precise control of grinding quality and efficiency is difficult in cam machining.

[0004] Cam machining requires consideration of the grinding effects on the axle between adjacent cams and the high grinding energy consumption generated when the feed rate is too fast when machining the egg-shaped surface of the cam. Displacement deviations during the machining of the axle between two cams can damage the cam side. High grinding energy consumption means high grinding heat and large grinding force, leading to rapid wear of the grinding wheel, easy surface burning of the workpiece, and severe surface / subsurface damage. Currently, camshaft grinding relies entirely on the operator's experience for settings; the equipment itself lacks the ability to identify grinding faults. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding apparatus for camshaft production to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a grinding equipment for camshaft production, comprising a base, a grinding assembly, a grinding table drive mechanism, a grinding table, a fixing assembly, and a measurement and control assembly, wherein a column is installed on one side of the base, the grinding assembly is fixed on the column, the grinding table drive mechanism is disposed on the base, the grinding table is fixed on the grinding table drive mechanism, the fixing assembly is installed on the grinding table and a camshaft preform is fixed thereon, the measurement and control assembly is disposed on the grinding table and located on one side of the fixing assembly, the measurement and control assembly includes a positioning assembly one, a positioning assembly two, a measurement and control box, and a sound collector, wherein the positioning assembly one is used to position the grinding assembly, the positioning assembly two is disposed on the positioning assembly one and used to position the height of the camshaft preform, the measurement and control box is fixed to the drive end of the positioning assembly two, and the sound collector is fixed to the top of the measurement and control box;

[0007] Furthermore, the control box has a groove, and a clamping plate is installed inside the groove. Two sets of guide rails are installed on the upper and lower sides of the clamping plate. Two wheel axle positioning blocks are slidably installed on the guide rail on the lower side of the clamping plate, and a grinding positioning block is slidably installed on the guide rail on the upper side of the clamping plate. Each of the wheel axle positioning block and the grinding positioning block is connected to an electric push rod. The wheel axle positioning block is provided with a fixed plate, a spring and a movable plate. The fixed plate is provided with a pressure sensing module, and the two ends of the spring are respectively connected to the pressure sensing module and the movable plate.

[0008] Furthermore, the clamping plate, in conjunction with the fixed plate, spring, and movable plate, has a sliding groove. When the wheel axle positioning block moves under the clamping plate, the corresponding fixed plate, spring, and movable plate move along the sliding groove. The grinding positioning block is positioned between the two wheel axle positioning blocks. When the grinding positioning block approaches a certain wheel axle positioning block, it will squeeze the corresponding movable plate. Both the wheel axle positioning block and the grinding positioning block are equipped with infrared ranging modules.

[0009] Furthermore, the positioning component one includes a lead screw module one, a movable frame and an infrared transmitter, wherein the movable frame is fixed at the driving position of the lead screw module one, and the infrared transmitter is mounted on the movable frame.

[0010] Furthermore, the polishing assembly is equipped with a signal receiving module for use with an infrared transmitter.

[0011] Furthermore, the second positioning component includes a second guide rail, a second drive block, and a second electric push rod. The second guide rail is mounted on the movable frame, the second drive block is slidably mounted on the second guide rail and connected to the control box, and the second electric push rod is fixed to the top of the movable frame and its drive end is connected to the drive block.

[0012] Furthermore, the fixing assembly includes two fixing seats, chucks, and a rotary motor, wherein the two chucks are rotatably mounted on the fixing seats, the drive end of the rotary motor is connected to one of the chucks, and a camshaft preform is held between the two chucks.

[0013] Furthermore, the grinding table drive mechanism includes an X-axis lead screw module and a Y-axis lead screw module, wherein the Y-axis lead screw module is fixed at the drive position of the X-axis lead screw module, and is used to control the movement of the grinding table in the X-axis and Y-axis directions respectively.

[0014] Furthermore, the grinding assembly includes a Z-axis lead screw module and a grinding module, wherein the grinding module is fixed at the drive position of the Z-axis lead screw module, and the Z-axis lead screw module is used to raise and lower the grinding module.

[0015] Furthermore, the X-axis lead screw module, Y-axis lead screw module, and Z-axis lead screw module are all equipped with accordion covers.

[0016] Furthermore, the specific methods are as follows:

[0017] Step 1: Feeding and fixing: Insert both ends of the camshaft prefabricated part between two chucks and fix it by the chucks;

[0018] Step 2: Locate the grinding point. The grinding table drive mechanism moves the grinding table so that the grinding position of the camshaft preform is aligned with the grinding assembly.

[0019] Step 3: Positioning the camshaft preform. Positioning component two moves the control box to position itself on the plane of the preform using the distance signal measured by the wheel axle positioning block. Positioning component one moves the control box to position itself at the grinding position of the grinding component using the distance signal measured by the grinding positioning block.

[0020] Step 4: Grinding the shaft body. When grinding the shaft body between the two cams, the grinding component first grinds a circle of the boundary position and is positioned by two wheel axle positioning blocks and the grinding distance is measured to see if it meets the standard. After that, the wheel axle positioning blocks will no longer move, and the grinding component will begin to finish the shaft body at this point. During this process, the grinding component will be tracked in real time and will be alerted before it exceeds the grinding range to improve the grinding accuracy. After the shaft body is ground, the wheel axle positioning blocks will check whether the grinding is in place.

[0021] Step 5: Grinding the cam. When grinding the cam surface, the two wheel axle positioning blocks first move to the outermost position. The grinding positioning block moves with the grinding assembly to the cam position. Then, the two wheel axle positioning blocks first position the cam boundary and calibrate the position of the grinding assembly. The grinding assembly starts grinding the cam surface and the grinding positioning block controls the grinding accuracy. The sound collector collects the sound data during the grinding process as information to determine whether the feed distance of the grinding assembly is safe.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: by setting up a measurement and control component, the grinding range of the camshaft preform shaft body and cam can be located, and the grinding process of the grinding device can be controlled to avoid exceeding the limited grinding range, thereby improving the grinding accuracy; by setting up a sound collector, sound data during the grinding process can be collected, providing a basis for whether the feed depth is safe. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a partial schematic diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the measurement and control box of the present invention;

[0027] Figure 4 This is a front view of the measurement and control box of the present invention;

[0028] Figure 5 This is a schematic diagram of the grinding table drive mechanism of the present invention;

[0029] In the diagram: 1. Base; 11. Column; 2. Grinding assembly; 21. Z-axis lead screw module; 22. Grinding module; 23. Signal receiving module; 3. Grinding table drive mechanism; 31. X-axis lead screw module; 32. Y-axis lead screw module; 4. Grinding table; 5. Fixing assembly; 51. Fixing base; 52. Chuck; 53. Rotary motor; 6. Measurement and control assembly; 61. Positioning assembly one; 611. Lead screw module one; 612. Moving frame 613. Infrared transmitter; 62. Positioning component two; 621. Guide rail two; 622. Drive block; 623. Electric actuator two; 63. Measurement and control box; 631. Clamping plate; 632. Guide rail one; 633. Wheel axle positioning block; 6331. Fixing plate; 6332. Spring; 6333. Moving plate; 634. Grinding positioning block; 635. Electric actuator one; 64. Sound collector; 7. Camshaft prefabricated component; 8. Accordion cover. Detailed Implementation

[0030] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-5 The present invention provides a technical solution: a grinding equipment for camshaft production, comprising a base 1, a grinding component 2, a grinding table drive mechanism 3, a grinding table 4, a fixing component 5, and a measurement and control component 6. A column 11 is installed on one side of the base 1, the grinding component 2 is fixed on the column 11, the grinding table drive mechanism 3 is disposed on the base 1, the grinding table 4 is fixed on the grinding table drive mechanism 3, the fixing component 5 is installed on the grinding table 4 and a camshaft preform 7 is fixed thereon, and the measurement and control component 6 is disposed on the grinding table 4 and located on one side of the fixing component 5. The measurement and control component 6 includes a positioning component 1 61, a positioning component 2 62, a measurement and control box 63, and a sound collector 64. The positioning component 1 61 is used to position the grinding component 2, the positioning component 2 62 is disposed on the positioning component 1 61 and is used to position the height of the camshaft preform 7, the measurement and control box 63 is fixed to the drive end of the positioning component 2 62, and the sound collector 64 is fixed to the top of the measurement and control box 63.

[0032] The control box 63 has a groove, and a clamping plate 631 is installed inside the groove. Two sets of guide rails 632 are installed on the upper and lower sides of the clamping plate 631. Two wheel axle positioning blocks 633 are slidably installed on the guide rail 632 on the lower side of the clamping plate 631, and a grinding positioning block 634 is slidably installed on the guide rail 632 on the upper side of the clamping plate 631. The wheel axle positioning block 633 and the grinding positioning block 634 are each connected to an electric push rod 635. The wheel axle positioning block 633 is provided with a fixed plate 6331, a spring 6332 and a moving plate 6333. The fixed plate 6331 is provided with a pressure sensing module, and the two ends of the spring 6332 are connected to the pressure sensing module and the moving plate 6333 respectively.

[0033] It should be further explained that: the clamping plate 631, together with the fixed plate 6331, the spring 6332, and the moving plate 6333, has a sliding groove. When the wheel axle positioning block 633 moves under the clamping plate 631, the corresponding fixed plate 6331, spring 6332, and moving plate 6333 move along the sliding groove. The grinding positioning block 634 is positioned between the two wheel axle positioning blocks 633. When the grinding positioning block 634 moves closer to a certain wheel axle positioning block 633, it will squeeze the corresponding moving plate 6333. Both the wheel axle positioning block 633 and the grinding positioning block 634 are equipped with infrared ranging modules.

[0034] In actual operation, the two wheel axle positioning blocks 633 are used to position the two adjacent cams of the camshaft preform 7 or the two sides of a certain cam. The grinding positioning block 634 is used to position the grinding component 2. The two wheel axle positioning blocks 633 limit the grinding range. When the grinding component 2 is about to exceed the predetermined range, the corresponding grinding positioning block 634 will start to squeeze the moving plate 6333. The pressure detected by the fixed plate 6331 can determine the moving position of the grinding component 2, thereby controlling the grinding accuracy. The sound collector 64 is used to collect the sound of the grinding process.

[0035] The positioning component 61 includes a lead screw module 611, a movable frame 612, and an infrared transmitter 613. The movable frame 612 is fixed at the drive position of the lead screw module 611, and the infrared transmitter 613 is mounted on the movable frame 612.

[0036] It should be noted that the grinding assembly 2 is equipped with a signal receiving module 23 for use with the infrared transmitter 613.

[0037] Positioning component 2 62 includes guide rail 2 621, drive block 622 and electric push rod 2 623. Guide rail 2 621 is mounted on the moving frame 612. Drive block 622 is slidably mounted on guide rail 2 621 and connected to the control box 63. Electric push rod 2 623 is fixed to the top of the moving frame 612 and its drive end is connected to drive block 622.

[0038] In actual operation, after the infrared transmitter 613 locates the grinding component 2, the positioning component 1 61 drives the moving frame 612 to the corresponding position, and the positioning component 2 62 moves the control box 63 up and down, and the wheel axle positioning block 633 positions the height of the camshaft preform 7.

[0039] The fixing component 5 includes two fixing seats 51, a chuck 52 and a rotary motor 53, wherein the two chucks 52 are rotatably mounted on the fixing seats 51, and the drive end of the rotary motor 53 is connected to one of the chucks 52.

[0040] The grinding table drive mechanism 3 includes an X-axis lead screw module 31 and a Y-axis lead screw module 32, wherein the Y-axis lead screw module 32 is fixed at the drive position of the X-axis lead screw module 31, and is used to control the movement of the grinding table 4 in the X-axis and Y-axis directions respectively.

[0041] The grinding assembly 2 includes a Z-axis lead screw module 21 and a grinding module 22, wherein the grinding module 22 is fixed in the drive position of the Z-axis lead screw module 21, and the Z-axis lead screw module 21 is used to raise and lower the grinding module 22.

[0042] The X-axis lead screw module 31, the Y-axis lead screw module 32, and the Z-axis lead screw module 21 are all equipped with accordion covers 8.

[0043] The specific implementation method is as follows:

[0044] Step 1: Feeding and fixing: Insert both ends of the camshaft preform 7 between the two chucks 52 and clamp and fix it by the chucks 52;

[0045] Step 2: Locate the grinding point. The grinding table drive mechanism 3 moves the grinding table 4 so that the grinding position of the camshaft preform 7 is aligned with the grinding assembly 2.

[0046] Step 3: Positioning the camshaft preform. Positioning component 2 62 moves the control box 63 and positions it to the plane where the preform is located by the distance signal measured by the wheel axle positioning block 633. Positioning component 1 61 moves the control box 63 and positions it to the grinding position of grinding component 2 by the distance signal measured by the grinding positioning block 634.

[0047] Step 4: Grinding the shaft body. When grinding the shaft body between the two cams, the grinding component 2 first grinds a circle of the boundary position and is positioned by two wheel axle positioning blocks 633 and the grinding distance is measured to see if it meets the standard. After that, the wheel axle positioning blocks 633 will no longer move, and the grinding component 2 will start to finish the shaft body at this point. During this process, the grinding component 2 will be tracked in real time and a warning will be given before it exceeds the grinding range to improve the grinding accuracy. After the shaft body is ground, the wheel axle positioning blocks 633 will check whether the grinding is in place.

[0048] Step 5: Grinding the cam. When grinding the cam surface, the two wheel axle positioning blocks 633 first move to the outermost position, and the grinding positioning block 634 moves with the grinding assembly 2 to the cam position. Then, the two wheel axle positioning blocks 633 first position the cam boundary and calibrate the position of the grinding assembly 2. The grinding assembly 2 starts grinding the cam surface and the grinding positioning block 634 controls the grinding accuracy. The sound collector 64 collects the sound data during the grinding process as information to determine whether the feed distance of the grinding assembly 2 is safe.

[0049] Specifically, in step three, the positioning method of positioning component two 62 is as follows: During the up-and-down movement of the control box 63, the closest distance signal detected by the two wheel axle positioning blocks 633 is regarded as the plane where the camshaft preform 7 is located. By default, the grinding component 2 is in the initial standby position and is not within the measurement range of the wheel axle positioning block 63. It can also be verified by comparing whether the distance signals detected by the two wheel axle positioning blocks 633 are consistent. The positioning method of positioning component one 61 is the same as that of positioning component two 62, that is, the shortest distance signal is locked by the grinding positioning block 634 as the position of the grinding component 2. At this time, it is assumed that the grinding component 2 has moved down into the measurement range of the grinding positioning block 634.

[0050] In step four, the methods for determining the grinding distance and accuracy are as follows: When determining the grinding distance, the center distance between the two wheel axle positioning blocks 633 is calculated, and the corresponding electric push rod 635 will record the pushing distance. The calculation is combined with the length of the measuring and control box 63. When determining the grinding accuracy, the grinding positioning block 634 will follow one of the wheel axle positioning blocks 633 to the outermost position. The other wheel axle positioning block 633 moves back and forth in the grinding range to measure whether the distance remains unchanged within the ideal range. During this process, the fixing component 5 will slowly rotate the camshaft preform 7 to ensure complete detection.

[0051] The positioning method and the grinding and testing method of positioning block 634 in step five are the same as those in step four.

[0052] In steps four and five, the grinding positioning block 634 moves with the grinding component 2, that is, it moves between the two wheel axle positioning blocks 633. By squeezing the moving plate 6333, the pressure measured by the fixed plate 6331 determines whether the grinding component 2 exceeds the grinding range. When the grinding positioning block 634 begins to touch the fixed plate 6331, the grinding component 2 begins to approach the boundary of the grinding range. The fixed plate 6331 records the pressure of the grinding positioning block 634 when it reaches the grinding boundary position in advance and controls it during the grinding process. If the measured pressure value exceeds the set value, it will be fed back in time for adjustment.

[0053] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding apparatus for camshaft production, characterized by: include: The system comprises a base (1), a grinding assembly (2), a grinding table drive mechanism (3), a grinding table (4), a fixing assembly (5), and a measurement and control assembly (6). A column (11) is mounted on one side of the base (1), the grinding assembly (2) is fixed to the column (11), the grinding table drive mechanism (3) is mounted on the base (1), the grinding table (4) is fixed to the grinding table drive mechanism (3), the fixing assembly (5) is mounted on the grinding table (4) and a camshaft prefabricated component (7) is fixed thereon, and the measurement and control assembly (6) is mounted on the grinding table (4). The measurement and control component (6) includes a positioning component one (61), a positioning component two (62), a measurement and control box (63), and a sound collector (64). The positioning component one (61) is used to position the grinding component (2). The positioning component two (62) is set on the positioning component one (61) and is used to position the height of the camshaft preform (7). The measurement and control box (63) is fixed on the drive end of the positioning component two (62). The sound collector (64) is fixed on the top of the measurement and control box (63). The control box (63) has a groove, and a clamping plate (631) is provided inside the groove. Two sets of guide rails (632) are provided on the upper and lower sides of the clamping plate (631). Two wheel axle positioning blocks (633) are slidably arranged on the guide rails (632) on the lower side of the clamping plate (631). A grinding positioning block (634) is slidably arranged on the guide rails (632) on the upper side of the clamping plate (631). Each of the wheel axle positioning block (633) and the grinding positioning block (634) is connected to an electric push rod (635). A fixed plate (6331), a spring (6332) and a moving plate (6333) are provided on the wheel axle positioning block (633). A pressure sensing module is provided on the fixed plate (6331). The two ends of the spring (6332) are connected to the pressure sensing module and the moving plate (6333) respectively. Two wheel axle positioning blocks (633) are used to position the two adjacent cams of the camshaft preform (7) or the two sides of a certain cam. The grinding positioning block (634) is used to position the grinding assembly (2).

2. The grinding equipment for camshaft production according to claim 1, characterized in that: The clamping plate (631) is equipped with a sliding groove in conjunction with the fixing plate (6331), spring (6332) and moving plate (6333). When the wheel axle positioning block (633) moves under the clamping plate (631), the corresponding fixing plate (6331), spring (6332) and moving plate (6333) move along the sliding groove. The grinding positioning block (634) is positioned between the two wheel axle positioning blocks (633). When the grinding positioning block (634) moves closer to a wheel axle positioning block (633), it presses the corresponding moving plate (6333). Both the wheel axle positioning block (633) and the grinding positioning block (634) are equipped with infrared ranging modules.

3. The grinding equipment for camshaft production according to claim 2, characterized in that: The positioning component 1 (61) includes a lead screw module 1 (611), a moving frame (612), and an infrared transmitter (613), wherein the moving frame (612) is fixed at the driving position of the lead screw module 1 (611), and the infrared transmitter (613) is mounted on the moving frame (612).

4. The grinding equipment for camshaft production according to claim 3, characterized in that: The polishing assembly (2) is provided with a signal receiving module (23) for use with an infrared transmitter (613).

5. The grinding equipment for camshaft production according to claim 4, characterized in that: The second positioning component (62) includes a second guide rail (621), a drive block (622), and a second electric push rod (623). The second guide rail (621) is mounted on the moving frame (612), the drive block (622) is slidably mounted on the second guide rail (621) and connected to the control box (63), and the second electric push rod (623) is fixed to the top of the moving frame (612) and its drive end is connected to the drive block (622).

6. The grinding equipment for camshaft production according to claim 5, characterized in that: The fixing component (5) includes two fixing seats (51), a chuck (52) and a rotary motor (53), wherein the two chucks (52) are rotatably mounted on the fixing seats (51), and the drive end of the rotary motor (53) is connected to one of the chucks (52).

7. A grinding device for camshaft production according to claim 6, characterized in that: The grinding table drive mechanism (3) includes an X-axis lead screw module (31) and a Y-axis lead screw module (32), wherein the Y-axis lead screw module (32) is fixed at the drive position of the X-axis lead screw module (31) and is used to control the movement of the grinding table (4) in the X-axis and Y-axis directions, respectively.

8. A grinding device for camshaft production according to claim 7, characterized in that: The grinding assembly (2) includes a Z-axis lead screw module (21) and a grinding module (22), wherein the grinding module (22) is fixed at the driving position of the Z-axis lead screw module (21), and the Z-axis lead screw module (21) is used to raise and lower the grinding module (22).

9. A grinding device for camshaft production according to claim 8, characterized in that: The X-axis lead screw module (31), Y-axis lead screw module (32) and Z-axis lead screw module (21) are all equipped with accordion covers (8).

10. The working method of a grinding equipment for camshaft production according to claim 9, characterized in that: The specific steps are as follows: Step 1: Feeding and fixing: Insert both ends of the camshaft preform (7) between two chucks (52) and fix them by the chucks (52); Step 2: Locate the grinding point. The grinding table drive mechanism (3) moves the grinding table (4) so ​​that the grinding position of the camshaft preform (7) is aligned with the grinding assembly (2). Step 3: Positioning the camshaft preform, positioning component 2 (62) moves the control box (63) and positions itself to the plane of the preform by means of the distance signal measured by the wheel axle positioning block (633), positioning component 1 (61) moves the control box (63) and positions itself to the grinding position of the grinding component (2) by means of the distance signal measured by the grinding positioning block (634); Step 4: Grinding the shaft body. When grinding the shaft body between the two cams, the grinding component (2) first grinds a circle of the boundary position and is positioned by two wheel axle positioning blocks (633) and the grinding distance is measured to see if it meets the standard. After that, the wheel axle positioning blocks (633) will no longer move, and the grinding component (2) will start to finish the shaft body at this point. During this process, the grinding component (2) will be tracked in real time and a reminder will be given before it exceeds the grinding range to improve the grinding accuracy. After the shaft body is ground, the wheel axle positioning blocks (633) will check whether the grinding is in place. Step 5: Grinding the cam. When grinding the cam surface, the two wheel axle positioning blocks (633) first move to the outermost position, and the grinding positioning block (634) moves to the cam position with the grinding assembly (2). Then, the two wheel axle positioning blocks (633) first position the cam boundary and check the position of the grinding assembly (2). The grinding assembly (2) starts grinding the cam surface and the grinding positioning block (634) controls the grinding accuracy. The sound collector (64) collects the sound data during the grinding process as the information basis for judging whether the feed distance of the grinding assembly (2) is safe.

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