Finishing apparatus and method for an engine shield

Abstract

This invention discloses a precision machining device for engine guard plates, comprising an electric motor, a movable frame fixedly connected to the bottom of the electric motor, an output end of the electric motor rotatably connected to the middle of the movable frame, a grinding component fixedly connected to the output end of the electric motor, the grinding component being used to grind protruding scraps on the engine guard plate, a self-adjusting component at the end of the grinding component, the self-adjusting component being used to adjust the position of the grinding component according to the angle of the grinding surface, and a positioning component at the end of the electric motor, the positioning component being used to limit the movement position of the movable frame. The grinding component allows for timely adjustment according to changes in the curved surface of the engine guard plate during the grinding process, preventing uneven grinding of the curved surface.

Description

Technical Field

[0001] This invention relates to the field of precision machining equipment for engine guard plates, specifically to a precision machining equipment and method for engine guard plates. Background Technology

[0002] The following steps are required to process an engine guard plate: Material preparation: Select a suitable material, usually lightweight, wear-resistant, and high-temperature resistant aluminum alloy. According to the design drawings, cut the selected material to obtain a suitable workpiece. Use CNC milling machines, forming machines, and other equipment to shape the workpiece, including processes such as drilling, bending, and pressing. Then proceed with the processing... Figure 2 When processing engine guard plates, the side with protruding blocks is curved, and these protruding blocks need to be ground off before further processing. The current grinding method involves workers using handheld grinding machines. This method cannot ensure that the grinding device fits the curved surface of the engine guard plate with the protruding blocks, and it relies too much on the worker's experience. Sometimes, the grinding is too short, which affects the subsequent quality of the engine guard plate.

[0003] Based on this, the present invention designs a precision machining equipment and method for engine guard plates to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a precision machining equipment and method for engine guard plates to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision machining device for an engine guard plate, comprising an electric motor, a movable frame fixedly connected to the bottom of the electric motor, an output end of the electric motor rotatably connected to the middle of the movable frame, a grinding component fixedly connected to the output end of the electric motor, the grinding component being used to grind protruding scraps on the engine guard plate, a self-adjusting component being provided at the end of the grinding component, the self-adjusting component being used to adjust the position of the grinding component according to the angle of the ground surface, and a positioning component being provided at the end of the electric motor, the positioning component being used to limit the movement position of the movable frame.

[0006] The grinding assembly includes: a transmission assembly, a grinding roller, and a sliding assembly. The output end of the motor is fixedly connected to one end of the transmission assembly, the other end of the transmission assembly is fixedly connected to one end of the grinding roller, and the other end of the grinding roller is rotatably connected to the end of the sliding assembly. A self-adjusting assembly is sleeved on the cylindrical body of the sliding assembly.

[0007] The transmission assembly further includes: universal head one and universal head two. The end of the transmission assembly is fixedly connected to the end of universal head one. The column in the middle of universal head one is rotatably connected to the column in the middle of universal head two. The end of universal head two is fixedly connected to the end of the grinding roller.

[0008] The sliding assembly further includes: universal head three and universal head four. The shaft of the sliding assembly is rotatably connected to the end of universal head three. The column in the middle of universal head three is rotatably connected to the column in the middle of universal head four. The end of universal head four is rotatably connected to the end of the grinding roller.

[0009] The self-adjusting assembly includes: a first fixed frame, a second fixed frame, a third connecting column, a telescopic component, and a pressure-bearing claw. The end of the first fixed frame is fixedly connected to the upper part of the movable frame. The side of the first fixed frame is rotatably connected to the upper part of the claw arm of the pressure-bearing claw. The lower part of the claw arm of the pressure-bearing claw is rotatably connected to the end of the third connecting column. The middle part of the third connecting column is rotatably connected to one end of the second fixed frame. The other end of the second fixed frame is fixedly connected to the side of the movable frame. One end of the telescopic component is fixedly connected to the side of the first fixed frame, and the other end of the telescopic component is fixedly connected to the side of the pressure-bearing claw.

[0010] The fixing frame one further includes: connecting column one, connecting column two, and limiting head one. The frame body of the fixing frame one is rotatably connected to the middle part of connecting column one. The end of connecting column one is rotatably connected to one end of limiting head one. The other end of limiting head one is fixedly connected to the end of telescopic member. The other end of the fixing frame one is rotatably connected to the middle part of connecting column two. The end of connecting column two is rotatably connected to the upper part of the claw arm of the pressure claw.

[0011] The telescopic component further includes: a telescopic column and a spring. One end of the telescopic column is slidably connected inside the cavity of the telescopic component, and the other end of the telescopic column is fixedly connected to the side of the pressure-bearing claw. The spring is sleeved and connected to the outer wall of the telescopic component.

[0012] The pressure-bearing claw further includes: an adjusting frame one, an adjusting frame two, a connecting claw, a connecting column four, and a limiting head two. The upper part of the claw arm of the pressure-bearing claw is rotatably connected to the middle part of the adjusting frame one, the end of the adjusting frame one is rotatably connected to the end of the connecting column two, the lower part of the claw arm of the pressure-bearing claw is rotatably connected to the middle part of the adjusting frame two, the end of the adjusting frame two is rotatably connected to the end of the connecting column three, the lower end of the claw arm of the pressure-bearing claw is fixedly connected to one end of the connecting claw, the other end of the connecting claw is rotatably connected to the middle part of the connecting column four, the end of the connecting column four is rotatably connected to one end of the limiting head two, and the other end of the limiting head two is fixedly connected to the end of the telescopic member.

[0013] The positioning assembly includes: an extension column, a connecting plate, a positioning corner protector, a tension member, and a rolling wheel. One side of the movable frame is fixedly connected to one end of the tension member, and the other end of the tension member is rotatably connected to the middle of the rolling wheel. The other side of the movable frame is fixedly connected to one end of the extension column, and the other end of the extension column is fixedly connected to the end of the connecting plate. The middle of the connecting plate is fixedly connected to the end of the positioning corner protector.

[0014] The above-mentioned method for precision machining of an engine guard plate includes the following steps: Step 1: Place the engine guard plate on a flat surface. At this time, the positioning component is clamped on the side of the engine guard plate. Start the electric motor and drive the grinding component to rotate.

[0015] Step 2: At this point, push the moving frame toward the other end of the engine guard plate. The action of the grinding component will grind away the scraps on the surface of the engine guard plate.

[0016] Step 3: On the plane where the grinding component moves, the self-adjusting component will adjust according to the changes in the curvature of the surface being ground, so that the self-adjusting component drives the grinding component to adjust the angle, so that the grinding component can fit the surface being ground.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention enables the grinding component to be adjusted in a timely manner according to the changes in the curved surface of the engine guard plate during the grinding process, so as to avoid uneven grinding of the curved surface.

[0018] 2. The present invention, through the setting of the self-adjusting component, enables the grinding component to apply stable pressure to the grinding component when grinding the curved surface of the engine guard plate, so that the grinding component can closely follow the curved surface for grinding. Moreover, the self-adjusting component can move in accordance with the changes of the grinding component, and the combination of the two increases the stability during grinding.

[0019] 3. The positioning components of this invention enable the user to keep the moving frame on the top surface of the engine guard plate while grinding the protruding edges of the curved surface of the engine guard plate, thus preventing the moving frame from shifting during movement. This design also reduces the resistance of the rolling wheels when the user pushes the moving frame, preventing excessive friction and making the process of pushing the moving frame difficult. Attached Figure Description

[0020] Figure 1 This is a top view schematic diagram of the present invention and the engine guard plate.

[0021] Figure 2 This is a three-dimensional structural diagram of the engine guard plate.

[0022] Figure 3 This is a schematic diagram of the front structure of the present invention.

[0023] Figure 4 This is a top view of the structure of the present invention.

[0024] Figure 5 for Figure 4 A magnified structural diagram of part A.

[0025] Figure 6 This is a bottom-view structural diagram of the present invention.

[0026] Figure 7 for Figure 6 A magnified structural diagram of part B.

[0027] Figure 8 This is a flowchart of the manufacturing process for the engine guard plate.

[0028] The attached diagram lists the components represented by each number as follows: 1. Engine guard plate; 2. Electric motor; 21. Moving frame; 3. Grinding assembly; 31. Transmission assembly; 311. Universal head one; 312. Universal head two; 32. Grinding roller; 33. Sliding assembly; 331. Universal head three; 332. Universal head four; 4. Self-adjusting assembly; 41. Fixed frame one; 411. Connecting column one; 412. Connecting column two; 4 13. Limiting head one; 42. Fixing frame two; 421. Connecting column three; 43. Telescopic component; 431. Retractable column; 432. Spring; 44. Pressure bearing claw; 441. Adjusting frame one; 442. Adjusting frame two; 443. Connecting claw; 444. Connecting column four; 445. Limiting head two; 5. Positioning assembly; 51. Extension column; 52. Connecting plate; 53. Positioning corner protector; 541. Rolling wheel; 54. Tensioning component. Detailed Implementation

[0029] Please see Figures 1-8 The present invention provides a technical solution: a precision machining equipment for an engine guard plate, including a motor 2, a movable frame 21 fixedly connected to the bottom of the motor 2, the output end of the motor 2 being rotatably connected through the middle of the movable frame 21, a grinding component 3 fixedly connected to the output end of the motor 2, the grinding component 3 being used to grind the protruding scraps on the engine guard plate 1, a self-adjusting component 4 being provided at the end of the grinding component 3, the self-adjusting component 4 being used to adjust the position of the grinding component 3 according to the angle of the grinding surface, and a positioning component 5 being provided at the end of the motor 2, the positioning component 5 being used to limit the movement position of the movable frame 21.

[0030] When grinding the protruding scraps on the curved surface of the engine guard plate 1, the engine guard plate 1 is placed on a flat surface. At this time, the positioning component 5 is clamped on the side of the engine guard plate 1. Then, the electric motor 2 is started, and the electric motor 2 will drive the grinding component 3 to move. At this time, the moving frame 21 is pushed to move towards the other end of the engine guard plate 1. The grinding component 3 will grind away the scraps on the engine guard plate 1 along the moving trajectory of the moving frame 21. Moreover, the curved surface of the engine guard plate 1 being ground has an upward trend. Therefore, one side of the self-adjusting component 4 is affected by the change of the curved surface as the moving frame 21 moves, so that the self-adjusting component 4 drives the grinding component 3 to adjust, so that the grinding component 3 can fit the curved surface being ground during the movement.

[0031] As a further embodiment of the present invention, the polishing assembly 3 includes: a transmission assembly 31, a polishing roller 32, and a sliding assembly 33. The output end of the motor 2 is fixedly connected to one end of the transmission assembly 31, the other end of the transmission assembly 31 is fixedly connected to one end of the polishing roller 32, the other end of the polishing roller 32 is rotatably connected to the end of the sliding assembly 33, and a self-adjusting assembly 4 is sleeved on the cylindrical body of the sliding assembly 33.

[0032] The transmission assembly 31 further includes: universal head one 311 and universal head two 312. The end of the transmission assembly 31 is fixedly connected to the end of universal head one 311. The column in the middle of universal head one 311 is rotatably connected to the column in the middle of universal head two 312. The end of universal head two 312 is fixedly connected to the end of the grinding roller 32.

[0033] The sliding assembly 33 further includes: universal head three 331 and universal head four 332. The shaft of the sliding assembly 33 is rotatably connected to the end of universal head three 331. The column in the middle of universal head three 331 is rotatably connected to the column in the middle of universal head four 332. The end of universal head four 332 is rotatably connected to the end of the grinding roller 32.

[0034] When the motor 2 is started, the output shaft of the motor 2 drives the transmission assembly 31 to rotate synchronously. At this time, the transmission assembly 31 drives the universal head 311 to rotate, and the transmission structure composed of universal head 311 and universal head 312 also rotates synchronously. When universal head 312 rotates upward or downward, universal head 311 can also drive universal head 312 to rotate. Universal head 312 drives the grinding roller 32 to rotate, and the grinding roller 32 grinds away the protruding scraps on the curved surface of the engine guard plate 1. The sliding assembly 33 is affected by the curved surface being ground because of its movement trajectory, causing the sliding assembly 33 to gradually rise. At this time, the sliding assembly 311... 3 will cause the universal head 331 to deflect to a certain extent. The end of the universal head 331 is rotatably connected to the shaft of the sliding component 33, so the rotation of the universal head 331 will not affect the speed of the sliding component 33 when it is pushed. The connection between the universal head 331 and the universal head 4 332 will be raised due to the lifting of the sliding component 33. At this time, the grinding roller 32 will tilt accordingly, so that the connection between the grinding roller 32 and the universal head 4 332 will be raised. At this time, the grinding roller 32 can fit the curved surface of the engine guard plate 1. Moreover, the connection transmission structure between the universal head 1 311 and the universal head 2 312 will also be affected by the transmission due to this change.

[0035] The setting of the grinding component 3 enables the grinding component 3 to be adjusted in a timely manner according to the changes in the surface of the engine guard plate 1 during the grinding process, so as to avoid uneven grinding of the surface.

[0036] As a further embodiment of the present invention, the self-adjusting assembly 4 includes: a first fixing frame 41, a second fixing frame 42, a third connecting column 421, a telescopic member 43, and a pressure-bearing claw 44. The end of the first fixing frame 41 is fixedly connected to the upper part of the movable frame 21. The side of the first fixing frame 41 is rotatably connected to the upper part of the claw arm of the pressure-bearing claw 44. The lower part of the claw arm of the pressure-bearing claw 44 is rotatably connected to the end of the third connecting column 421. The middle part of the third connecting column 421 is rotatably connected to one end of the second fixing frame 42. The other end of the second fixing frame 42 is fixedly connected to the side of the movable frame 21. One end of the telescopic member 43 is fixedly connected to the side of the first fixing frame 41. The other end of the telescopic member 43 is fixedly connected to the side of the pressure-bearing claw 44.

[0037] The fixing frame 41 further includes: a connecting column 411, a connecting column 412, and a limiting head 413. The frame of the fixing frame 41 is rotatably connected to the middle of the connecting column 411. The end of the connecting column 411 is rotatably connected to one end of the limiting head 413. The other end of the limiting head 413 is fixedly connected to the end of the telescopic member 43. The other end of the fixing frame 41 is rotatably connected to the middle of the connecting column 412. The end of the connecting column 412 is rotatably connected to the upper part of the claw arm of the pressure claw 44.

[0038] The telescopic component 43 further includes: a telescopic column 431 and a spring 432. One end of the telescopic column 431 is slidably connected inside the cavity of the telescopic component 43, and the other end of the telescopic column 431 is fixedly connected to the side of the pressure claw 44. The spring 432 is sleeved and connected to the outer wall of the telescopic component 43.

[0039] The pressure-bearing claw 44 further includes: an adjusting frame 1 441, an adjusting frame 2 442, a connecting claw 443, a connecting column 444, and a limiting head 2 445. The upper part of the claw arm of the pressure-bearing claw 44 is rotatably connected to the middle part of the adjusting frame 1 441, the end of the adjusting frame 1 441 is rotatably connected to the end of the connecting column 2 412, the lower part of the claw arm of the pressure-bearing claw 44 is rotatably connected to the middle part of the adjusting frame 2 442, the end of the adjusting frame 2 442 is rotatably connected to the end of the connecting column 3 421, the lower end of the claw arm of the pressure-bearing claw 44 is fixedly connected to one end of the connecting claw 443, the other end of the connecting claw 443 is rotatably connected to the middle part of the connecting column 444, the end of the connecting column 444 is rotatably connected to one end of the limiting head 2 445, and the other end of the limiting head 2 445 is fixedly connected to the end of the telescopic member 43.

[0040] As the sliding assembly 33 passes over the gradually rising curved surface, the pressure claw 44, which is sleeved and connected to the shaft of the sliding assembly 33, will also rise. At this time, the connecting column 444 and the limiting head 445 at the lower part of the claw arm of the pressure claw 44 will be subjected to the lifting force, causing the limiting head 445 to drive the spring 432 to retract into the telescopic member 43. At this time, the retracting column 431 will also be compressed accordingly, and the spring 432 will also apply a pushing force to the limiting head 445, so that the pressure claw 44 drives the sliding assembly 33 to keep it close to the polished curved surface of the engine guard plate 1. The rotational connection between the adjusting bracket 441 and the connecting column 412 will rotate accordingly, and the rotational connection between the adjusting bracket 442 and the connecting column 421 will also rotate at the same amplitude. This structure can make the sliding assembly 33 drive the pressure claw 44 to move more stably when it is subjected to the lifting force of the curved surface, and there will be no loosening or slippage.

[0041] By setting the self-adjusting component 4, when the grinding component 3 is grinding the curved surface of the engine guard plate 1, the self-adjusting component 4 can apply stable pressure to the grinding component 3, so that the grinding component 3 can be closely attached to the curved surface for grinding. Moreover, the self-adjusting component 4 can move in accordance with the changes of the grinding component 3. The combination of the two increases the stability during grinding.

[0042] As a further embodiment of the present invention, the positioning component 5 includes: an extension column 51, a connecting plate 52, a positioning corner protector 53, a tension member 54, and a rolling wheel 541. One side of the movable frame 21 is fixedly connected to one end of the tension member 54, and the other end of the tension member 54 is rotatably connected to the middle of the rolling wheel 541. The other side of the movable frame 21 is fixedly connected to one end of the extension column 51, and the other end of the extension column 51 is fixedly connected to the end of the connecting plate 52. The middle of the connecting plate 52 is fixedly connected to the end of the positioning corner protector 53.

[0043] When grinding the scrap material on the curved surface of the engine guard plate 1 using this invention, the positioning corner protector 53 needs to be clamped onto the side of the engine guard plate 1. At this time, the positioning corner protector 53 will abut against a horizontal side of the engine guard plate 1, while the rolling wheel 541 will abut against the side of the ground curved surface of the engine guard plate 1. The two work together to stably apply force to the engine guard plate 1 in two directions, preventing slippage during the movement of the moving frame 21. Moreover, when pushing the moving frame 21, the rolling wheel 541 will also rotate due to the friction when in contact with the engine guard plate 1, making the movement of the moving frame 21 smoother. The positioning corner protector 53 is designed because the side abutted by the positioning corner protector 53 is a horizontal straight side, so it can maintain stable movement. This combination allows the user to push the moving frame 21, so that the entire device remains stable during the movement.

[0044] The positioning component 5 ensures that when the user is grinding the protruding edges of the curved surface of the engine guard plate 1, the moving frame 21 remains on the top surface of the engine guard plate 1 during the pushing process, preventing the moving frame 21 from shifting during movement. This design also reduces the resistance of the rolling wheel 541 during the pushing process, preventing excessive friction and making the pushing process of the moving frame 21 more strenuous.

[0045] As described above, the specific steps of the precision machining method for an engine guard plate are as follows: Step 1: Place the engine guard plate 1 on a flat surface. At this time, the positioning component 5 is clamped on the side of the engine guard plate 1. Start the motor 2 and drive the grinding component 3 to rotate.

[0046] Step 2: At this time, push the moving frame 21 towards the other end of the engine guard plate 1. The action of the grinding component 3 will grind away the scraps on the surface of the engine guard plate 1.

[0047] Step 3: On the plane where the grinding component 3 moves, the self-adjusting component 4 will adjust according to the changes in the curvature of the surface being ground, so that the self-adjusting component 4 drives the grinding component 3 to adjust the angle, so that the grinding component 3 can fit the surface being ground.

Claims

1. A precision machining device for an engine guard plate, comprising an electric motor (2), wherein a movable frame (21) is fixedly connected to the bottom of the electric motor (2), and the output end of the electric motor (2) is rotatably connected through the middle of the movable frame (21), characterized in that: The output end of the motor (2) is fixedly connected to a grinding component (3), which is used to grind the protruding scraps on the engine guard plate (1). The end of the grinding component (3) is provided with a self-adjusting component (4), which is used to adjust the position of the grinding component (3) according to the angle of the grinding surface. The end of the motor (2) is provided with a positioning component (5), which is used to limit the movement position of the moving frame (21). The self-adjusting component (4) includes: a first fixed frame (41), a second fixed frame (42), a third connecting column (421), a telescopic component (43), and a pressure-bearing claw (44). The end of the first fixed frame (41) is fixedly connected to the upper part of the movable frame (21). The side of the first fixed frame (41) is rotatably connected to the upper part of the claw arm of the pressure-bearing claw (44). The lower part of the claw arm of the pressure-bearing claw (44) is rotatably connected to the end of the third connecting column (421). The middle part of the third connecting column (421) is rotatably connected to one end of the second fixed frame (42). The other end of the second fixed frame (42) is fixedly connected to the side of the movable frame (21). One end of the telescopic component (43) is fixedly connected to the side of the first fixed frame (41). The other end of the telescopic component (43) is fixedly connected to the side of the pressure-bearing claw (44). The first fixing frame (41) further includes: a first connecting column (411), a second connecting column (412), and a first limiting head (413). The frame of the first fixing frame (41) is rotatably connected to the middle part of the first connecting column (411). The end of the first connecting column (411) is rotatably connected to one end of the first limiting head (413). The other end of the first limiting head (413) is fixedly connected to the end of the telescopic member (43). The other end of the first fixing frame (41) is rotatably connected to the middle part of the second connecting column (412). The end of the second connecting column (412) is rotatably connected to the upper part of the claw arm of the pressure claw (44). The telescopic component (43) further includes: a telescopic column (431) and a spring (432). The telescopic component (43) is slidably connected to one end of the telescopic column (431) in the cavity. The other end of the telescopic column (431) is fixedly connected to the side of the pressure claw (44). The outer wall of the telescopic component (43) is sleeved with a spring (432). The pressure-bearing claw (44) further includes: an adjusting frame one (441), an adjusting frame two (442), a connecting claw (443), a connecting column four (444), and a limiting head two (445). The upper part of the claw arm of the pressure-bearing claw (44) is rotatably connected to the middle part of the adjusting frame one (441), the end of the adjusting frame one (441) is rotatably connected to the end of the connecting column two (412), and the lower part of the claw arm of the pressure-bearing claw (44) is rotatably connected to the middle part of the adjusting frame two (442). The end of the second adjustment frame (442) is rotatably connected to the end of the third connecting column (421). The lower end of the claw arm of the pressure-bearing claw (44) is fixedly connected to one end of the connecting claw (443). The other end of the connecting claw (443) is rotatably connected to the middle of the fourth connecting column (444). The end of the fourth connecting column (444) is rotatably connected to one end of the second limiting head (445). The other end of the second limiting head (445) is fixedly connected to the end of the telescopic member (43).

2. The finishing apparatus for an engine shield according to claim 1, characterized by: The grinding assembly (3) includes: a transmission assembly (31), a grinding roller (32), and a sliding assembly (33). The output end of the motor (2) is fixedly connected to one end of the transmission assembly (31), the other end of the transmission assembly (31) is fixedly connected to one end of the grinding roller (32), and the other end of the grinding roller (32) is rotatably connected to the end of the sliding assembly (33). The column of the sliding assembly (33) is sleeved with a self-adjusting assembly (4).

3. An engine deck finishing apparatus as defined in claim 2, wherein: The transmission assembly (31) further includes: universal head one (311) and universal head two (312). The end of the transmission assembly (31) is fixedly connected to the end of universal head one (311). The column in the middle of universal head one (311) is rotatably connected to the column in the middle of universal head two (312). The end of universal head two (312) is fixedly connected to the end of the grinding roller (32).

4. The finishing apparatus for an engine shroud according to claim 2, characterized by: The sliding assembly (33) further includes: universal head three (331) and universal head four (332). The shaft of the sliding assembly (33) is rotatably connected to the end of universal head three (331). The column in the middle of universal head three (331) is rotatably connected to the column in the middle of universal head four (332). The end of universal head four (332) is rotatably connected to the end of the grinding roller (32).

5. The finishing apparatus for an engine shroud according to claim 1, characterized by: The positioning component (5) includes: an extension column (51), a connecting plate (52), a positioning corner protector (53), a tension member (54), and a rolling wheel (541). One side of the moving frame (21) is fixedly connected to one end of the tension member (54), and the other end of the tension member (54) is rotatably connected to the middle of the rolling wheel (541). The other side of the moving frame (21) is fixedly connected to one end of the extension column (51), and the other end of the extension column (51) is fixedly connected to the end of the connecting plate (52). The middle of the connecting plate (52) is fixedly connected to the end of the positioning corner protector (53).

6. A method of finishing an engine shield according to any one of claims 1-5, characterized in that: The specific processing steps are as follows: Step 1: Place the engine guard plate (1) on a flat surface. At this time, place the positioning component (5) on the side of the engine guard plate (1), start the motor (2), and the motor (2) will drive the grinding component (3) to rotate. Step 2: At this time, push the moving frame (21) towards the other end of the engine guard plate (1), and the action of the grinding component (3) will grind away the scraps on the surface of the engine guard plate (1); Step 3: On the plane where the grinding component (3) moves, the self-adjusting component (4) will adjust due to the change in the height of the surface being ground, so that the self-adjusting component (4) drives the grinding component (3) to adjust the angle, so that the grinding component (3) can fit the surface being ground.

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