Steel back burr grinding machine and burr grinding method

Abstract

The invention relates to the technical field of burnishing machines, and provides a steel backing burnishing machine and a burnishing method.The steel backing burnishing machine comprises a protection plate, a supporting frame is fixedly connected to the bottom of the protection plate, a collecting box is fixedly connected to the bottom of the protection plate, a steel backing body is arranged on the top of the protection plate, and a burnishing device is arranged on the top of the protection plate; the burnishing device comprises a motor, the motor is fixedly connected to the side face of the supporting frame, an output shaft of the motor is fixedly connected with a rotating rod, the circumferential face of the rotating rod is fixedly connected with a gear, the top of the protection plate is fixedly connected with a supporting plate, and the side face of the supporting plate is fixedly connected with a mounting block; the side face of the mounting block is slidably connected with a sliding block. By means of the technical scheme, the problems that in the prior art, the effect of fixing the steel backing in the burnishing process is difficult to achieve, stability and consistency in the burnishing process are reduced, and machining accuracy and quality are difficult to guarantee are solved.

Description

Technical Field

[0001] The invention relates to the technical field of thorn grinding machines, and in particular to a steel back thorn grinding machine and a thorn grinding method. Background Art

[0002] A burr grinder is a device used to process the surface of a workpiece, especially in the field of metal processing. Its main function is to remove burrs, impurities or irregular parts on the surface of the workpiece by grinding and polishing to improve the surface quality and precision of the workpiece. Burr grinders are usually used to process parts after mechanical processing, such as workpieces after milling, turning and other operations.

[0003] According to a disclosed bilateral thorn grinding machine (publication number: CN106625131B), it includes a thorn grinding wheel mechanism, a grinding wheel group and a whole machine power mechanism; the thorn grinding wheel mechanism includes multiple groups of thorn grinding wheel groups set up side by side, each thorn grinding wheel group includes two thorn grinding wheels set up symmetrically up and down; the grinding wheel group includes a grinding belt, a grinding bracket, a limit bracket, a shifting bracket and a shifting power assembly, the grinding belt connects the two grinding pulleys, one of the grinding pulleys is set between two grinding pulleys set up side by side in two groups of grinding pulley groups, and the other grinding pulley is connected to the grinding drive motor, the grinding drive motor is fixed on the grinding bracket, and the grinding bracket supports the grinding pulley to rotate around its own axis, but in the above device, the components such as the thorn grinding wheel mechanism, the grinding wheel group and the whole machine power mechanism cooperate with each other, it is difficult to achieve the effect of fixing the steel back during the grinding process, reduce the stability and consistency of the grinding process, and it is difficult to ensure the accuracy and quality of the processing, which needs to be improved. Summary of the invention

[0004] The present invention provides a steel back burr grinding machine and a burr grinding method, which solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is as follows: a steel back thorn grinding machine, comprising a protective plate, a support frame is fixedly connected to the bottom of the protective plate, a collection box is fixedly connected to the bottom of the protective plate, a steel back body is arranged on the top of the protective plate, and a thorn grinding device is arranged on the top of the protective plate; The grinding device includes a motor, which is fixedly connected to the side of the support frame, the output shaft of the motor is fixedly connected to a rotating rod, the circumferential surface of the rotating rod is fixedly connected to a gear, the top of the protective plate is fixedly connected to a support plate, the side of the support plate is fixedly connected to a mounting block, the side of the mounting block is slidably connected to a slider, the side of the slider is fixedly connected to a rack rod, the side of the slider is provided with a grinding roller, and the side of the slider is provided with a fixed structure.

[0006] The fixing structure includes a fixing plate, the bottom of which is fixedly connected to the top of the protective plate, the side of the fixing plate is slidably connected with a clamping plate, the inner wall of the mounting block is rotatably connected with a torsion spring rod, the circumferential surface of the torsion spring rod is fixedly connected with a positioning rod, the side of the support plate is fixedly connected with a hydraulic cylinder, one end of the hydraulic cylinder is slidably connected with a force rod through a piston, and the other end of the hydraulic cylinder is slidably connected with a hydraulic rod. The hydraulic system fixes the steel back body through the positioning rod and the hydraulic cylinder. This fixing method can effectively prevent the position of the steel back body from shifting during the grinding process, thereby improving the stability and consistency of the grinding process and ensuring the accuracy and quality of the processing.

[0007] A spring is fixedly connected to the circumferential surface of the force-bearing rod, and one end of the spring away from the force-bearing rod is fixedly connected to one end of the mounting block. The initial state of the spring is a relaxed state, and the side surface of the gear and the side surface of the rack rod are meshed with each other. The transmission system such as the gear and the rack rod can accurately control the movement of the grinding roller to achieve uniform grinding of the steel back body. This precise control helps to remove burrs on the steel back body and ensure that the surface quality meets the requirements. The setting of the spring can make the force-bearing rod automatically reset.

[0008] A cleaning device is provided on the top of the protective plate, and the cleaning device includes a belt, which is rotatably connected to the circumferential surface of a rotating rod, and the end of the belt away from the rotating rod is rotatably connected to the rotating rod, and the circumferential surface of the rotating rod is fixedly connected to a bevel gear, the top of the protective plate is fixedly connected to a mounting plate, a long rod passes through the side of the mounting plate, the circumferential surface of the long rod is fixedly connected to a bevel gear, and the circumferential surface of the long rod is fixedly connected to a positioning block, the side of the mounting plate is fixedly connected to a water tank, a hose is fixedly passed through the side of the water tank, an end of the hose away from the water tank is fixedly passed through a telescopic tube, an end of the telescopic tube away from the hose is fixedly passed through a water pipe, and an end of the water pipe away from the water pipe is fixedly passed through a spray head, and an adjustment structure is provided at the bottom of the water tank.

[0009] The adjustment structure includes a hydraulic cylinder A, which is fixedly connected to the top of the protective plate. One end of the hydraulic cylinder A is slidably connected to a hydraulic rod A through a piston, and the other end of the hydraulic cylinder A is slidably connected to a force-bearing rod A through a piston. The nozzle is displaced through an automated hydraulic system and a telescopic tube, and can clean the grinding roller and the steel back body in all directions, effectively remove dust and debris, keep the equipment clean, ensure the consistency of surface quality during the grinding process, and avoid uneven grinding due to dust interference.

[0010] One end of the hydraulic rod A away from the hydraulic cylinder A is fixedly connected to the circumferential surface of the water pipe. The number of the positioning blocks is set to be several and arranged in an array along the circumference on the circumferential surface of the long rod. The side surface of the bevel gear is meshed with the side surface of the helical gear. The hydraulic rod A pushes the telescopic tube to extend and retract. The displacement of the nozzle expands the cleaning area, ensuring that all parts of the equipment can be effectively cleaned.

[0011] A filtering device is provided on the top of the protective plate, and the filtering device includes a filter plate, and the filter plate is slidably connected to the inner wall of the collection box. The bottom of the rotating rod is fixedly connected to a rotating shaft, and the circumferential surface of the rotating shaft is fixedly connected to a bevel gear A. A rotating shaft passes through the side of the collection box, and the circumferential surface of the rotating shaft is fixedly connected to a bevel gear A, and one end of the rotating shaft is fixedly connected to an extrusion block.

[0012] A return spring is fixedly connected to the bottom of the filter plate, and one end of the return spring away from the filter plate is fixedly connected to a fixed block. The side of the fixed block is fixedly connected to the inner wall of the collection box. The setting of the return spring can reset the filter plate, speed up the filtering speed, and improve the filtering effect.

[0013] The initial state of the return spring is a relaxed state, the filter plate is located on the motion trajectory of the extrusion block, the side of the helical gear A is meshed with the side of the bevel gear A, the movement of the extrusion block and the shaking of the filter plate can accelerate the separation of solid impurities, make the water cleaner, enhance the cleaning effect, reduce the missed area, and improve the grinding quality.

[0014] A method for sharpening a steel back thorn sharpening machine, comprising: S1: The motor drives the rotating rod to rotate, and then the rotating rod drives the gear to rotate; S2: The gear rotates to drive the rack rod to move, and then the rack rod moves to drive the slider to move; S3: The displacement of the slider drives the grinding roller to move, thereby achieving the function of grinding and deburring the steel back body.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, the force of the rotating rod driven by the motor cooperates with the components such as the mounting block, the positioning rod and the fixing plate in the grinding device, so that the hydraulic rod pushes the clamping plate to move, thereby fixing the steel back body and preventing the position of the steel back body from shifting during the grinding process, thereby achieving the effect of fixing the steel back during the grinding process, thereby improving the stability and consistency of the grinding process and ensuring the accuracy and quality of the processing.

[0016] 2. In the present invention, the force of the belt driven by the rotation of the rotating rod cooperates with the mounting plate, bevel gear, helical gear and other components in the cleaning device, so that as the positioning block rolls, the elasticity of the hose will cause the hose to continuously restore its original shape, forming a negative pressure at the water tank inlet, so that the water in the water tank passes through the telescopic tube and then sprayed out through the nozzle, thereby achieving the effect of cleaning the grinding roller and the steel back body, preventing excessive dust and waste generated during the grinding process from affecting the grinding effect, and being able to clean the grinding roller and the steel back body in all directions, effectively removing dust and debris, and keeping the equipment clean.

[0017] 3. In the present invention, the force of the rotating shaft driven by the rotation of the rotating rod cooperates with the components such as the filter plate, the extrusion block and the fixed block in the filter device, so that the filter plate is reset by the elastic force of the spring, so that the filter plate is constantly shaking, and the filtering effect is accelerated. Solid impurities in the water will remain on the top of the filter plate, and the water is filtered into the collection box, which is convenient for secondary utilization and achieves the effect of filtering wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present invention; Figure 2 It is a three-dimensional side view structural schematic diagram of the gear of the present invention; Figure 3 It is a three-dimensional side view structural schematic diagram of the belt of the present invention; Figure 4 It is a three-dimensional enlarged structural schematic diagram of the positioning rod of the present invention; Figure 5 It is a three-dimensional side view structural schematic diagram of the nozzle of the present invention; Figure 6 It is a three-dimensional enlarged structural schematic diagram of the filter plate of the present invention; Figure 7 It is a three-dimensional side view structural schematic diagram of the rotating shaft of the present invention; Figure 8 For the present invention Figure 5 Schematic diagram of the three-dimensional enlarged structure of A in the middle.

[0020] In the figure: 101, protective plate; 102, support frame; 103, collection box; 104, steel back body; 2, grinding device; 201, motor; 202, rotating rod; 203, gear; 204, rack rod; 205, support plate; 206, mounting block; 207, slider; 208, grinding roller; 209, fixing plate; 210, clamping plate; 211, torsion spring rod; 212, positioning rod; 213, hydraulic cylinder; 214, force rod; 215, spring; 216, hydraulic rod; 3, cleaning device; 301, belt; 3 02. Rotating rod; 303. Bevel gear; 304. Mounting plate; 305. Bevel gear; 306. Hose; 307. Telescopic tube; 309. Water pipe; 310. Sprinkler; 311. Hydraulic cylinder A; 312. Force rod A; 313. Hydraulic rod A; 314. Positioning block; 315. Water tank; 316. Long rod; 4. Filter device; 401. Filter plate; 402. Rotating shaft; 403. Bevel gear A; 404. Rotating shaft; 405. Bevel gear A; 406. Extrusion block; 407. Fixed block; 408. Return spring. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1 like Figures 1 to 8As shown, this embodiment proposes a steel back grinding machine, including a protective plate 101, a support frame 102 is fixedly connected to the bottom of the protective plate 101, a collection box 103 is fixedly connected to the bottom of the protective plate 101, a steel back body 104 is arranged on the top of the protective plate 101, and a grinding device 2 is arranged on the top of the protective plate 101; the grinding device 2 includes a motor 201, the motor 201 is fixedly connected to the side of the support frame 102, the output shaft of the motor 201 is fixedly connected to the rotating rod 202, the circumferential surface of the rotating rod 202 is fixedly connected to the gear 203, the top of the protective plate 101 is fixedly connected to the support plate 205, the side of the support plate 205 is fixedly connected to the mounting block 206, the side of the mounting block 206 is slidably connected to the slider 207, the side of the slider 207 is fixedly connected to the rack rod 204, the side of the slider 207 is provided with a grinding roller 208, and the side of the slider 207 is provided with a fixed structure. The fixing structure includes a fixing plate 209, the bottom of which is fixedly connected to the top of the protective plate 101, the side of the fixing plate 209 is slidably connected with a clamping plate 210, the inner wall of the mounting block 206 is rotatably connected with a torsion spring rod 211, the circumferential surface of the torsion spring rod 211 is fixedly connected with a positioning rod 212, the side of the support plate 205 is fixedly connected with a hydraulic cylinder 213, one end of the hydraulic cylinder 213 is slidably connected with a force rod 214 through a piston, and the other end of the hydraulic cylinder 213 is slidably connected with a hydraulic rod 216, the hydraulic system fixes the steel back body 104 through the positioning rod 212 and the hydraulic cylinder 213, this fixing method can effectively prevent the position of the steel back body 104 from shifting during the grinding process, thereby improving the stability and consistency of the grinding process and ensuring the accuracy and quality of the processing. A spring 215 is fixedly connected to the circumferential surface of the force-bearing rod 214, and one end of the spring 215 away from the force-bearing rod 214 is fixedly connected to one end of the mounting block 206. The initial state of the spring 215 is a relaxed state, and the side surface of the gear 203 is meshed with the side surface of the rack rod 204. The transmission system such as the gear 203 and the rack rod 204 can accurately control the movement of the grinding roller 208 to achieve uniform grinding of the steel back body 104. This precise control helps to remove burrs on the steel back body 104 and ensure that the surface quality meets the requirements. The setting of the spring 215 can make the force-bearing rod 214 automatically reset.A cleaning device 3 is provided on the top of the protective plate 101. The cleaning device 3 includes a belt 301. The belt 301 is rotatably connected to the circumferential surface of the rotating rod 202. The end of the belt 301 away from the rotating rod 202 is rotatably connected to the rotating rod 302. The circumferential surface of the rotating rod 302 is fixedly connected to a bevel gear 303. The top of the protective plate 101 is fixedly connected to a mounting plate 304. A long rod 316 penetrates the side of the mounting plate 304. The circumferential surface of the long rod 316 is fixedly connected to a bevel gear 303. 05. The circumferential surface of the long rod 316 is fixedly connected with a positioning block 314, the side of the mounting plate 304 is fixedly connected with a water tank 315, a hose 306 is fixedly penetrated through the side of the water tank 315, an end of the hose 306 away from the water tank 315 is fixedly penetrated with a telescopic tube 307, an end of the telescopic tube 307 away from the hose 306 is fixedly penetrated with a water pipe 309, an end of the water pipe 309 away from the water pipe 309 is fixedly penetrated with a nozzle 310, and an adjustment structure is provided at the bottom of the water tank 315. The adjustment structure includes a hydraulic cylinder A311, which is fixedly connected to the top of the protective plate 101. One end of the hydraulic cylinder A311 is connected to a hydraulic rod A313 through a piston sliding connection, and the other end of the hydraulic cylinder A311 is connected to a force rod A312 through a piston sliding connection. The nozzle 310 is displaced through an automated hydraulic system and a telescopic tube 307, and can clean the grinding roller 208 and the steel back body 104 in all directions, effectively remove dust and debris, keep the equipment clean, ensure the consistency of surface quality during the grinding process, and avoid uneven grinding due to dust interference. One end of the hydraulic rod A313 away from the hydraulic cylinder A311 is fixedly connected to the circumferential surface of the water pipe 309, the number of positioning blocks 314 is set to be several, and is arranged along the circumference on the circumferential surface of the long rod 316, the side of the bevel gear 305 and the side of the helical gear 303 are meshed with each other, the hydraulic rod A313 pushes the telescopic tube 307 to retract and retract, and the displacement of the nozzle 310 expands the cleaning area, ensuring that all parts of the equipment can be effectively cleaned.

[0023] In this embodiment, the motor 201 drives the rotating rod 202 to rotate, and the rotating rod 202 drives the gear 203 to rotate, and the gear 203 drives the rack rod 204 to move, and the displacement of the rack rod 204 drives the slider 207 to move, and the displacement of the slider 207 drives the grinding roller 208 to move, so as to achieve the effect of grinding and deburring the steel back body 104, and the positioning rod 212 is squeezed by the displacement of the slider 207, so that the positioning rod 212 drives the torsion spring rod 211 to move. The positioning rod 212 rotates downward to squeeze the force-bearing rod 214, causing the force-bearing rod 214 to move inward to squeeze the piston inside the hydraulic cylinder 213. The piston inside the hydraulic cylinder 213 pushes the liquid inside it. The liquid inside the hydraulic cylinder 213 pushes another piston to move. The piston pushes the hydraulic rod 216 to move. The hydraulic rod 216 pushes the clamping plate 210 to move, thereby fixing the steel back body 104 to prevent the position of the steel back body 104 from shifting during the grinding process, thereby achieving the function of fixing the steel back during the grinding process.

[0024] The belt 301 is rotated by rotating the rotating rod 202, and the rotating rod 302 is rotated by the belt 301, and the rotating rod 302 is rotated by rotating the rotating rod 302, and the bevel gear 303 is rotated by the bevel gear 303, and the bevel gear 305 is rotated by the bevel gear 305, and the long rod 316 is rotated by the bevel gear 305, and the positioning block 314 is rotated by the long rod 316, and the positioning block 314 squeezes the hose 306, which will be squeezed and released alternately to pump the fluid. As the positioning block 314 rolls, the elasticity of the hose 306 will make the hose 306 constantly restore its original shape, forming a negative pressure at the entrance of the water tank 315, so that the water tank 315 The water in the grinding machine passes through the telescopic tube 307 and then is sprayed out through the nozzle 310, so as to clean the grinding roller 208 and the steel back body 104, and prevent the dust and waste generated during the grinding process from affecting the grinding effect. The slider 207 is displaced to squeeze the force rod A312, so that the force rod A312 is displaced inward to squeeze the piston inside the hydraulic cylinder A311. The piston inside the hydraulic cylinder A311 pushes the liquid inside it. The liquid inside the hydraulic cylinder A311 pushes another piston to move. The piston pushes the hydraulic rod A313 to move. The telescopic tube 307 is extended and retracted by the hydraulic rod A313, thereby driving the nozzle 310 to move, thereby increasing the cleaning range and improving the cleaning effect.

[0025] Example 2 like Figures 1 to 8As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a steel back grinding machine, the top of the protective plate 101 is provided with a filter device 4, the filter device 4 includes a filter plate 401, the filter plate 401 is slidably connected to the inner wall of the collection box 103, the bottom of the rotating rod 302 is fixedly connected with a rotating shaft 402, the circumferential surface of the rotating shaft 402 is fixedly connected with a bevel gear A403, the side of the collection box 103 is penetrated by a rotating shaft 404, the circumferential surface of the rotating shaft 404 is fixedly connected with a bevel gear A405, and one end of the rotating shaft 404 is fixedly connected with an extrusion block 406. The bottom of the filter plate 401 is fixedly connected with a return spring 408, and one end of the return spring 408 away from the filter plate 401 is fixedly connected with a fixed block 407, and the side of the fixed block 407 is fixedly connected to the inner wall of the collection box 103. The setting of the return spring 408 can reset the filter plate 401, speed up the filtering speed, and improve the filtering effect. The initial state of the return spring 408 is a relaxed state, the filter plate 401 is located on the movement trajectory of the extrusion block 406, the side of the bevel gear A403 is meshed with the side of the bevel gear A405, the movement of the extrusion block 406 and the shaking of the filter plate 401 can accelerate the separation of solid impurities, make the water cleaner, enhance the cleaning effect, reduce the missed area, and improve the grinding quality.

[0026] In this embodiment, the cleaned water will be integrated with the dust and waste and fall into the collection box 103. The rotating shaft 402 is driven to rotate by the rotating rod 302, and the bevel gear A403 is driven to rotate by the rotating shaft 402. The bevel gear A403 is driven to rotate by the bevel gear A405, and the rotating shaft 404 is driven to rotate by the bevel gear A405. The extrusion block 406 is driven to rotate by the rotation of the rotating shaft 404. When the extrusion block 406 rotates to a vertical state, the extrusion block 406 squeezes the filter plate 401 to move upward. When the extrusion block 406 is squeezed to a horizontal state, the filter plate 401 is reset by the elastic force of the reset spring 408, so that the filter plate 401 keeps shaking, which speeds up the filtering effect. The solid impurities in the water will remain on the top of the filter plate 401, and the water is filtered into the collection box 103 for secondary use.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel back burr grinding machine, characterized in that: It comprises a protective plate (101), the bottom of the protective plate (101) is fixedly connected to a support frame (102), the bottom of the protective plate (101) is fixedly connected to a collection box (103), the top of the protective plate (101) is provided with a steel back body (104), and the top of the protective plate (101) is provided with a thorn grinding device (2); The grinding device (2) comprises a motor (201), the motor (201) is fixedly connected to a side of a support frame (102), the output shaft of the motor (201) is fixedly connected to a rotating rod (202), the circumferential surface of the rotating rod (202) is fixedly connected to a gear (203), the top of the protective plate (101) is fixedly connected to a supporting plate (205), the side of the supporting plate (205) is fixedly connected to a mounting block (206), the side of the mounting block (206) is slidably connected to a slider (207), the side of the slider (207) is fixedly connected to a rack rod (204), the side of the slider (207) is provided with a grinding roller (208), and the side of the slider (207) is provided with a fixed structure.

2. A steel back grinding machine according to claim 1, characterized in that: The fixing structure comprises a fixing plate (209), the bottom of the fixing plate (209) is fixedly connected to the top of the protective plate (101), the side of the fixing plate (209) is slidably connected to a clamping plate (210), the inner wall of the mounting block (206) is rotatably connected to a torsion spring rod (211), the circumferential surface of the torsion spring rod (211) is fixedly connected to a positioning rod (212), the side of the support plate (205) is fixedly connected to a hydraulic cylinder (213), one end of the hydraulic cylinder (213) is slidably connected to a force-bearing rod (214) via a piston, and the other end of the hydraulic cylinder (213) is slidably connected to a hydraulic rod (216).

3. A steel back grinding machine according to claim 2, characterized in that: A spring (215) is fixedly connected to the circumferential surface of the force-bearing rod (214); one end of the spring (215) away from the force-bearing rod (214) is fixedly connected to one end of the mounting block (206); the initial state of the spring (215) is a relaxed state; the side surface of the gear (203) and the side surface of the rack rod (204) are meshed with each other.

4. A steel back burr grinder according to claim 3, characterized in that: A cleaning device (3) is arranged on the top of the protective plate (101), and the cleaning device (3) comprises a belt (301), the belt (301) being rotatably connected to the circumferential surface of a rotating rod (202), one end of the belt (301) away from the rotating rod (202) being rotatably connected to the rotating rod (302), the circumferential surface of the rotating rod (302) being fixedly connected to a bevel gear (303), the top of the protective plate (101) being fixedly connected to a mounting plate (304), a long rod (316) penetrating a side surface of the mounting plate (304), and the circumferential surface of the long rod (316) being fixedly connected to a bevel gear ( 305), a positioning block (314) is fixedly connected to the circumferential surface of the long rod (316), a water tank (315) is fixedly connected to the side of the mounting plate (304), a hose (306) is fixedly penetrated through the side of the water tank (315), a telescopic tube (307) is fixedly penetrated through one end of the hose (306) away from the water tank (315), a water pipe (309) is fixedly penetrated through one end of the telescopic tube (307) away from the hose (306), a nozzle (310) is fixedly penetrated through one end of the water pipe (309) away from the water pipe (309), and an adjustment structure is provided at the bottom of the water tank (315).

5. A steel back burr grinder according to claim 4, characterized in that: The adjustment structure comprises a hydraulic cylinder A (311), wherein the hydraulic cylinder A (311) is fixedly connected to the top of the protective plate (101), one end of the hydraulic cylinder A (311) is slidably connected to a hydraulic rod A (313) via a piston, and the other end of the hydraulic cylinder A (311) is slidably connected to a force-bearing rod A (312) via a piston.

6. A steel back burr grinder according to claim 5, characterized in that: One end of the hydraulic rod A (313) away from the hydraulic cylinder A (311) is fixedly connected to the circumferential surface of the water pipe (309), the number of the positioning blocks (314) is set to be a plurality and arranged in a circumferential array on the circumferential surface of the long rod (316), and the side surface of the bevel gear (305) is meshed with the side surface of the helical gear (303).

7. A steel back burr grinder according to claim 6, characterized in that: A filter device (4) is arranged on the top of the protection plate (101), the filter device (4) comprising a filter plate (401), the filter plate (401) being slidably connected to the inner wall of the collection box (103), a rotating shaft (402) being fixedly connected to the bottom of the rotating rod (302), a bevel gear A (403) being fixedly connected to the circumferential surface of the rotating shaft (402), a rotating shaft (404) passing through the side of the collection box (103), a bevel gear A (405) being fixedly connected to the circumferential surface of the rotating shaft (404), and an extrusion block (406) being fixedly connected to one end of the rotating shaft (404).

8. A steel back burr grinder according to claim 7, characterized in that: A return spring (408) is fixedly connected to the bottom of the filter plate (401), one end of the return spring (408) away from the filter plate (401) is fixedly connected to a fixed block (407), and a side surface of the fixed block (407) is fixedly connected to the inner wall of the collection box (103).

9. A steel back burr grinding machine according to claim 8, characterized in that: The initial state of the return spring (408) is a relaxed state, the filter plate (401) is located on the movement track of the extrusion block (406), and the side surface of the helical gear A (403) and the side surface of the bevel gear A (405) are meshed with each other.

10. A method for sharpening a steel back thorn grinder according to claim 9, characterized in that: include: S1: The motor (201) drives the rotating rod (202) to rotate, and the rotating rod (202) then drives the gear (203) to rotate; S2: The gear (203) rotates to drive the rack rod (204) to move, and the displacement of the rack rod (204) drives the slider (207) to move; S3: The sliding block (207) is displaced to drive the grinding roller (208) to move, thereby achieving the effect of grinding and deburring the steel back body (104).

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