Shearing blade polishing device

Abstract

The utility model provides a shearing blade polishing device, which relates to the field of blade polishing equipment, and comprises a protection assembly, a support frame used for providing device support, a protection cover used for polishing protection and a controller used for controlling polishing operation, and the protection cover is fixed at the top of the support frame. The controller is fixed to the surface of the supporting frame, and the clamping mechanism comprises a three-jaw chuck used for clamping a blade and an overturning assembly used for overturning the blade; the turning assembly, the pushing assembly, the height adjusting assembly and the transverse moving assembly are integrally controlled through the controller, full-automatic collaborative operation of blade clamping, turning, pushing and polishing is achieved, manual intervention is reduced, the machining efficiency is improved, and the machining efficiency is improved through collaborative work of the transverse moving assembly, the height adjusting assembly and the pushing assembly. Therefore, the problems that an existing polishing device can only polish specific positions and is difficult to adapt to blades of different sizes can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of blade polishing equipment, specifically a shearing blade polishing device. Background Technology

[0002] Blade polishing equipment is used to polish blades. It generally uses polishing tools such as grinding wheels and brush rollers to contact the blade surface and grind and polish it. The purpose is to make the blade surface smoother and flatter, and improve the quality and performance of the blade. Shearing knives are professional tools used to cut or shear hard materials. They are commonly used in industry, machinery manufacturing and special operation scenarios. After a long period of use, shearing knife blades will become dull. Therefore, they need to be polished by polishing equipment to restore their sharpness.

[0003] According to Chinese Patent Application No. 202320816794.3, a surface polishing device for processing shear blades is disclosed, including a base frame, a control panel fixedly connected to the right side surface of the base frame, a top frame fixedly connected to the upper surface of the base frame, and a fixing rod fixedly connected to the left side surface of the top frame. Two sets of fixing rods are provided, and a connecting frame is fixedly connected to the outer surface of each fixing rod. A cylinder body is fixedly connected to the bottom end of the connecting frame. A base plate is mounted on the bottom surface of the cylinder body. By activating the cylinder body, the base plate is lowered to a suitable height, and then the right side of the first polishing wheel abuts against the left side surface of the blade. Simultaneously, by activating an electric push rod to extend and retract within a groove, a second polishing wheel abuts against the right side surface of the blade. Then, the first and second polishing wheels are connected to an external power source to polish the entire side of the blade, and the device is adaptable to blades of various sizes.

[0004] Existing technology effectively solves the problem of slow operation efficiency caused by the need to move the entire device when polishing both sides of the blade. It has the advantages of polishing both sides of the blade and adapting to blades of different sizes. However, this polishing device still has shortcomings in use. First, the first polishing wheel is fixed in its installation, which means that its position is relatively fixed and can only polish the shearing blade at a specific position, which cannot meet the needs of full polishing. Second, although the second polishing wheel is connected to the mounting bearing by an electric push rod, its stroke and adjustment range are limited, making it difficult to adapt to shearing blades of different sizes.

[0005] In summary, this utility model provides a shearing blade polishing device to solve the above-mentioned problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A shear blade polishing device includes a protective assembly comprising a support frame for supporting the device, a protective cover for polishing protection, and a controller for controlling the polishing operation. The protective cover is fixed to the top of the support frame, and the controller is fixed to the surface of the support frame. A clamping mechanism includes a three-jaw chuck for clamping the blade and a flipping assembly for flipping the blade. The flipping assembly includes a protective housing for protection, a gearbox for providing power, a first motor, a drive wheel, and a driven wheel. The gearbox, first motor, drive wheel, and driven wheel are all installed inside the protective housing. The three-jaw chuck is located within the protective housing. On the surface of the shell, the gearbox and the first motor are both fixedly connected to the protective shell. The driven wheel is fixed to the input shaft of the gearbox, and the output shaft of the gearbox extends through to the outside of the protective shell and is fixedly connected to the three-jaw chuck. The output shaft of the first motor is drivenly connected to the driving wheel. The driving wheel and the driven wheel are connected by belt drive. The pushing assembly includes a fixed frame for providing support for the pushing assembly, a support seat for supporting the clamping mechanism, a third motor for moving the support seat, gears and racks, guide rails and guide seats for limiting the support seat, and a bellows cover for protecting the pushing assembly.

[0008] Furthermore, in this utility model, the protective shell is fixed to the top of the support base, the third motor is fixed to the inner cavity of the protective shell, and the output shaft passes through to the bottom of the support base and is connected to the gear transmission. The rack and the guide rail are both fixed to the top of the fixing frame. The guide seat is located on the surface of the guide rail and is slidably connected to the guide rail. The support base is fixed to the top of the guide rail. The two ends of the bellows cover are respectively fixedly connected to the inner walls of the support base and the support frame.

[0009] Furthermore, in this utility model, a polishing mechanism is installed at the upper end of the inner cavity of the support frame, including a height adjustment component for height adjustment, a polishing component for blade polishing, and a lateral movement component for adjusting the position of the polishing mechanism.

[0010] Furthermore, in this utility model, the height adjustment component includes a support plate, a servo cylinder for height adjustment, a mounting plate for fixing the polishing component, a slide rail and a slide block for limiting the mounting plate. The servo cylinder is fixed to the top of the support plate, slide rails are fixedly connected to both sides of the surface of the support plate, and the slide block is slidably connected to the surface of the slide rails. The mounting plate is fixedly connected to the slide block, and the output end of the servo cylinder is fixedly connected to the mounting plate.

[0011] Furthermore, in this utility model, the polishing assembly includes a dust cover, a second motor for polishing, and a polishing roller. The dust cover is fixed to the surface of the mounting plate, the polishing roller is fixed to the inner cavity of the dust cover by a bearing, the second motor is fixed to one side of the dust cover, and its output shaft passes through the inner cavity of the dust cover and is connected to the polishing roller for transmission.

[0012] Furthermore, in this utility model, the transverse moving assembly includes a crossbeam, a mounting bracket for mounting the transverse moving assembly, a fourth motor and a reducer for providing moving power, a ball screw, a ball nut and a fixing plate for driving the polishing mechanism to move, a connecting plate for supporting the polishing mechanism, and a guide groove for providing limiting. The ball screw, ball nut and fixing plate are all installed in the inner cavity of the mounting bracket, and the connecting plate is fixedly connected to the support plate.

[0013] Furthermore, in this utility model, the crossbeam is fixedly connected to the inner wall of the protective cover, the mounting bracket is fixed to the surface of the crossbeam, the fourth motor and the reducer are both fixed to one end of the mounting bracket, guide grooves are provided at the top and bottom of the mounting bracket, the ball screw is movably connected to the inner wall of the mounting bracket through a bearing, the ball nut is sleeved on the surface of the ball screw and threadedly connected to the ball screw, one end of the ball nut is fixedly connected to the fixing plate, both ends of the fixing plate pass through the guide grooves and are fixedly connected to the connecting plate, the output shaft of the fourth motor is drivenly connected to the input shaft of the reducer, and the output shaft of the reducer passes through the inner cavity of the mounting bracket and is drivenly connected to the ball screw.

[0014] Beneficial effects: This utility model has the following beneficial effects:

[0015] This invention integrates a control unit to control a flipping component, a pushing component, a height adjustment component, and a lateral movement component, enabling fully automated coordinated operation of blade clamping, flipping, pushing, and polishing. This reduces manual intervention and improves processing efficiency. Blade flipping is achieved through a gearbox and belt drive, while lateral movement is driven by a ball screw and reducer, ensuring smooth movement and positioning accuracy. The coordinated operation of the lateral movement component, height adjustment component, and pushing component effectively solves the problems of existing polishing devices that can only polish specific locations and are difficult to adapt to blades of different sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the protective cover of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the support frame and the pushing component of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the polishing mechanism and the transverse component of this utility model;

[0020] Figure 5This is a schematic diagram of the separated state structure of the polishing mechanism and the transverse component of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection state structure of the push component of this utility model.

[0022] In the picture:

[0023] 100. Protective component; 110. Support frame; 120. Protective cover; 130. Controller; 200. Clamping mechanism; 210. Three-jaw chuck; 220. Tilting component; 221. Protective shell; 222. Gearbox; 223. First motor; 224. Drive wheel; 225. Driven wheel; 300. Polishing mechanism; 310. Height adjustment component; 311. Support plate; 312. Servo cylinder; 313. Mounting plate; 314. Slide rail; 315. Slide block; 320. Polishing component; 321. Protective housing Dust hood; 322, Second motor; 323, Polishing roller; 400, Pushing assembly; 410, Fixing frame; 420, Support base; 430, Third motor; 440, Gear; 450, Rack; 460, Guide rail; 470, Guide seat; 480, Bellows cover; 500, Transverse assembly; 510, Crossbeam; 520, Mounting bracket; 530, Fourth motor; 540, Reducer; 550, Ball screw; 560, Ball nut; 570, Fixing plate; 580, Guide groove; 590, Connecting plate. Detailed Implementation

[0024] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0025] Example 1

[0026] like Figure 1-6As shown, this is the first embodiment of the present invention. This embodiment provides a shearing blade polishing device, including a protective assembly 100, comprising a support frame 110 for providing device support, a protective cover 120 for polishing protection, and a controller 130 for controlling the polishing operation. The protective cover 120 is fixed to the top of the support frame 110, and the controller 130 is fixed to the surface of the support frame 110. A clamping mechanism 200 includes a three-jaw chuck 210 for clamping the blade and a flipping assembly 220 for flipping the blade. The flipping assembly 220 includes a protective shell 221 for protection, a gearbox 222 for providing power, a first motor 223, a driving wheel 224, and a driven wheel 225. The gearbox 222, the first motor 223, the driving wheel 224, and the driven wheel 225 are all installed inside the protective shell 221. The jaw chuck 210 is located on the surface of the protective shell 221. The gearbox 222 and the first motor 223 are both fixedly connected to the protective shell 221. The driven wheel 225 is fixed to the input shaft of the gearbox 222, and the output shaft of the gearbox 222 passes through to the outside of the protective shell 221 and is fixedly connected to the three-jaw chuck 210. The output shaft of the first motor 223 is drivenly connected to the driving wheel 224. The driving wheel 224 and the driven wheel 225 are connected by belt drive. The pushing assembly 400 includes a fixed frame 410 for providing support for the pushing assembly 400, a support seat 420 for supporting the clamping mechanism 200, a third motor 430 for moving the support seat 420, a gear 440 and a rack 450, a guide rail 460 and a guide seat 470 for limiting the support seat 420, and a bellows cover 480 for protecting the pushing assembly 400.

[0027] like Figure 1-6 As shown, the protective assembly 100 provides support and protection for the entire device while controlling the polishing operation. The support frame 110 stably supports other components. The protective cover 120 is fixed to the top of the support frame 110, effectively preventing debris from flying during polishing and ensuring the safety of operators and the cleanliness of the working environment. The controller 130 is installed on the surface of the support frame 110, allowing operators to easily start, stop, and adjust parameters of the entire polishing operation. The controller 130 can be a PLC controller. The three-jaw chuck 210 is used to firmly clamp the shearing blade, ensuring that the blade will not loosen or shift during polishing, guaranteeing the polishing process. For high precision, the protective housing 221 provides protection for the internal gearbox 222, first motor 223, drive wheel 224, and driven wheel 225, preventing external dust and debris from entering and affecting their normal operation. After the first motor 223 starts, its output shaft drives the drive wheel 224 to rotate. The drive wheel 224 drives the driven wheel 225 to rotate via a belt. The driven wheel 225 is mounted on the input shaft of the gearbox 222, thereby driving the gearbox 222 to work. The output shaft of the gearbox 222 passes through the protective housing 221 and is fixedly connected to the three-jaw chuck 210, thereby realizing the rotation of the blade and facilitating the polishing of different surfaces of the blade.

[0028] The fixed frame 410 provides support for the pushing component 400, ensuring the stability of its structure. The support base 420 is used to support the clamping mechanism 200, so that the blade can move with the movement of the support base 420. The third motor 430 is fixed in the inner cavity of the protective shell 221, and its output shaft passes through the bottom of the support base 420 and is connected to the gear 440 for transmission. The gear 440 cooperates with the rack 450 fixed on the top of the fixed frame 410. When the third motor 430 rotates, the support base 420 is moved by the rolling of the gear 440 on the rack 450, thereby realizing the position adjustment of the blade during the polishing process. This can effectively solve the problems of existing polishing devices that can only polish specific positions and are difficult to adapt to blades of different sizes.

[0029] Example 2

[0030] Reference Figure 2-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] In this embodiment, the protective shell 221 is fixed to the top of the support base 420, the third motor 430 is fixed to the inner cavity of the protective shell 221, and the output shaft passes through to the bottom of the support base 420 and is connected to the gear 440 for transmission. The rack 450 and the guide rail 460 are both fixed to the top of the fixing frame 410. The guide seat 470 is located on the surface of the guide rail 460 and is slidably connected to the guide rail 460. The support base 420 is fixed to the top of the guide rail 460. The two ends of the bellows cover 480 are fixedly connected to the inner walls of the support base 420 and the support frame 110, respectively.

[0032] A polishing mechanism 300 is installed at the upper end of the inner cavity of the support frame 110, including a height adjustment component 310 for height adjustment, a polishing component 320 for blade polishing, and a transverse component 500 for adjusting the position of the polishing mechanism 300.

[0033] The height adjustment assembly 310 includes a support plate 311, a servo cylinder 312 for height adjustment, a mounting plate 313 for fixing the polishing assembly 320, a slide rail 314 and a slide block 315 for limiting the mounting plate 313. The servo cylinder 312 is fixed to the top of the support plate 311. The slide rail 314 is fixedly connected to both sides of the surface of the support plate 311, and the slide block 315 is slidably connected to the surface of the slide rail 314. The mounting plate 313 is fixedly connected to the slide block 315, and the output end of the servo cylinder 312 is fixedly connected to the mounting plate 313.

[0034] The polishing assembly 320 includes a dust cover 321, a second motor 322 for polishing, and a polishing roller 323. The dust cover 321 is fixed to the surface of the mounting plate 313, the polishing roller 323 is fixed to the inner cavity of the dust cover 321 by bearings, the second motor 322 is fixed to one side of the dust cover 321, and its output shaft passes through the inner cavity of the dust cover 321 and is connected to the polishing roller 323 for transmission.

[0035] like Figure 2-6 As shown, the guide rail 460 is fixed to the top of the fixed frame 410, the guide seat 470 is located on the surface of the guide rail 460 and is slidably connected to it, and the support seat 420 is fixed to the top of the guide rail 460. The cooperation between the guide rail 460 and the guide seat 470 provides guidance and limit for the movement of the support seat 420, ensuring the linearity and stability of the movement of the support seat 420. The two ends of the bellows cover 480 are fixedly connected to the inner walls of the support seat 420 and the support frame 110 respectively, which can prevent dust, debris and other objects from entering the push assembly 400 and protect the internal structure.

[0036] The support plate 311 serves as a basic support component, providing stable support for the polishing mechanism 300. A servo cylinder 312 is fixed to the top of the support plate 311, and its output end is fixedly connected to the mounting plate 313. When the servo cylinder 312 operates, it can drive the mounting plate 313 to move up and down in height. A slide rail 314 is fixed to both sides of the surface of the support plate 311. A slide block 315 is slidably connected to the slide rail 314, and the mounting plate 313 is fixedly connected to the slide block 315. The cooperation between the slide rail 314 and the slide block 315 provides limits and limits for the lifting and lowering of the mounting plate 313. The guide function ensures the smooth lifting of the mounting plate 313. The dust cover 321 is fixed to the surface of the mounting plate 313 to prevent dust and debris generated during polishing from spreading to the surrounding environment. The dust cover 321 can also be connected to an external dust collection device through a pipeline to reduce dust during polishing. The second motor 322 is fixed to one side of the dust cover 321, and its output shaft passes through the inner cavity of the dust cover 321 and is connected to the polishing roller 323 for transmission. When the second motor 322 is started, it drives the polishing roller 323 to rotate and polish the blade.

[0037] Example 3

[0038] Reference Figure 2 , 4 5 and 6 are the third embodiment of this utility model, which is based on the first two embodiments.

[0039] In this embodiment, the transverse component 500 includes a crossbeam 510, a mounting bracket 520 for mounting the transverse component 500, a fourth motor 530 and a reducer 540 for providing moving power, a ball screw 550, a ball nut 560 and a fixing plate 570 for driving the polishing mechanism 300 to move, a connecting plate 590 for supporting the polishing mechanism 300, and a guide groove 580 for providing limiting. The ball screw 550, the ball nut 560 and the fixing plate 570 are all installed in the inner cavity of the mounting bracket 520, and the connecting plate 590 is fixedly connected to the support plate 311.

[0040] The crossbeam 510 is fixedly connected to the inner wall of the protective cover 120. The mounting bracket 520 is fixed to the surface of the crossbeam 510. The fourth motor 530 and the reducer 540 are both fixed to one end of the mounting bracket 520. Guide grooves 580 are opened at the top and bottom of the mounting bracket 520. The ball screw 550 is movably connected to the inner wall of the mounting bracket 520 through the bearing. The ball nut 560 is sleeved on the surface of the ball screw 550 and threadedly connected to the ball screw 550. One end of the ball nut 560 is fixedly connected to the fixing plate 570. Both ends of the fixing plate 570 pass through the guide grooves 580 and are fixedly connected to the connecting plate 590. The output shaft of the fourth motor 530 is drivenly connected to the input shaft of the reducer 540. The output shaft of the reducer 540 passes through the inner cavity of the mounting bracket 520 and is drivenly connected to the ball screw 550.

[0041] like Figure 2 , 4As shown in Figure 5, the crossbeam 510 is fixedly connected to the inner wall of the protective cover 120, providing an installation base for the transverse component 500. The mounting bracket 520 is fixed to the surface of the crossbeam 510, providing support for the polishing mechanism 300. The fourth motor 530 and the reducer 540 are both fixed to one end of the mounting bracket 520. The output shaft of the fourth motor 530 is drively connected to the input shaft of the reducer 540. The function of the reducer 540 is to reduce the speed and increase the torque, providing suitable power for the rotation of the ball screw 550. The ball screw 550 is movably connected to the inner wall of the mounting bracket 520 through bearings. The ball nut 560 is sleeved on the surface of the ball screw 550 and threadedly connected to it. When the output shaft of the reducer 540 drives the ball screw... When 550 rotates, the ball nut 560 will move linearly along the ball screw 550. One end of the ball nut 560 is fixedly connected to the fixed plate 570, thereby driving the fixed plate 570 to move. The connecting plate 590 is fixedly connected to the support plate 311. Both ends of the fixed plate 570 pass through the guide groove 580 and are fixedly connected to the connecting plate 590. Therefore, the movement of the fixed plate 570 will drive the polishing mechanism 300 to move as a whole through the connecting plate 590, thereby realizing the horizontal position adjustment of the polishing mechanism 300. The guide groove 580 is opened at the top and bottom of the mounting bracket 520 to provide guidance and limit for the movement of the fixed plate 570, thereby ensuring the linearity and stability of the horizontal movement of the polishing mechanism 300.

[0042] In use, the shearing blade is first fixed and placed on the three-jaw chuck 210 of the clamping mechanism 200. The three-jaw chuck 210 firmly clamps the blade. The pushing component 400 starts working, the third motor 430 starts, and its output shaft drives the gear 440 to rotate. The gear 440 meshes with the rack 450 fixed on the top of the fixing frame 410, thereby moving the support 420 along the guide rail 460 and pushing the clamping mechanism 200 holding the blade to the appropriate polishing position. The guide seat 470 slides on the guide rail 460, which plays the role of limiting and stabilizing the movement of the support 420. The bellows cover 480 protects the pushing component 400 to prevent dust and other particles from entering.

[0043] When the transverse component 500 is working, the fourth motor 530 starts, and its output shaft transmits power to the reducer 540. The output shaft of the reducer 540 drives the ball screw 550 in the inner cavity of the mounting bracket 520 to rotate. The ball nut 560, which is sleeved on the ball screw 550, is threadedly connected to the ball screw 550. As the ball screw 550 rotates, the ball nut 560 moves along the ball screw 550, and then drives the connecting plate 590 to move through the fixed plate 570. The connecting plate 590 is fixedly connected to the support plate 311 of the polishing mechanism 300, thereby realizing the lateral position adjustment of the polishing mechanism 300. The guide groove 580 provides a limit for the movement of the fixed plate 570 to ensure that the polishing mechanism 300 moves smoothly.

[0044] The height adjustment component 310 adjusts the height of the polishing component 320 as needed. The servo cylinder 312 is started, and its output end pushes the mounting plate 313 to move along the slide rail 314. The slide block 315 slides on the slide rail 314 to ensure that the mounting plate 313 rises and falls smoothly, so that the polishing component 320 fixed on the mounting plate 313 reaches the appropriate height for polishing the blade.

[0045] The polishing assembly 320 starts working, the second motor 322 starts, and its output shaft drives the polishing roller 323 to rotate. The rotating polishing roller 323 polishes the blade. The dust cover 321 can prevent dust and other particles generated during the polishing process from flying, thus providing protection. After one side of the blade is polished, the flipping assembly 220 starts working, the first motor 223 starts, and its output shaft drives the drive wheel 224 to rotate. The drive wheel 224 drives the driven wheel 225 to rotate via a belt. The driven wheel 225 is fixed on the input shaft of the gearbox 222, thereby making the gearbox 222 work. The output shaft of the gearbox 222 drives the three-jaw chuck 210 to flip, flipping the blade to the other side so that the other side of the blade can be polished.

[0046] After polishing both sides of the blade, the operator stops the device via controller 130 and removes the polished blade from the three-jaw chuck 210. Through the coordinated work of various components, the shearing blade is polished from multiple angles and in all directions. The clamping mechanism 200 can firmly clamp and flip the blade, the pushing component 400 can flexibly adjust the blade position, and the height and horizontal position of the polishing mechanism 300 can be adjusted, which greatly improves the efficiency and accuracy of polishing. At the same time, the protective component 100 ensures the safety of the operator and the stable operation of the device.

[0047] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0048] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A polishing device for shearing blades, characterized in that: include, The protective assembly (100) includes a support frame (110) for providing support for the device, a protective cover (120) for polishing protection, and a controller (130) for controlling the polishing operation, wherein the protective cover (120) is fixed to the top of the support frame (110) and the controller (130) is fixed to the surface of the support frame (110). The clamping mechanism (200) includes a three-jaw chuck (210) for clamping the blade and a flipping assembly (220) for flipping the blade. The flipping assembly (220) includes a protective shell (221) for protection, a gearbox (222) for providing power, a first motor (223), a drive wheel (224), and a driven wheel (225). The gearbox (222), the first motor (223), the drive wheel (224), and the driven wheel (225) are all installed in the inner cavity of the protective shell (221). The three-jaw chuck (210) is located on the surface of the protective shell (221). The gearbox (222) and the first motor (223) are both fixedly connected to the protective shell (221). The driven wheel (225) is fixed to the input shaft of the gearbox (222). The output shaft of the gearbox (222) extends to the outside of the protective shell (221) and is fixedly connected to the three-jaw chuck (210). The output shaft of the first motor (223) is drivenly connected to the drive wheel (224). The drive wheel (224) and the driven wheel (225) are connected by a belt drive. The push assembly (400) includes a mounting frame (410) for providing support for the push assembly (400), a support base (420) for supporting the clamping mechanism (200), a third motor (430) for moving the support base (420), a gear (440) and a rack (450), a guide rail (460) and a guide seat (470) for limiting the support base (420), and a bellows cover (480) for protecting the push assembly (400).

2. The shearing blade polishing device as described in claim 1, characterized in that: The protective shell (221) is fixed to the top of the support base (420), the third motor (430) is fixed to the inner cavity of the protective shell (221), and the output shaft passes through to the bottom of the support base (420) and is connected to the gear (440) for transmission. The rack (450) and the guide rail (460) are both fixed to the top of the fixing frame (410). The guide seat (470) is located on the surface of the guide rail (460) and is slidably connected to the guide rail (460). The support base (420) is fixed to the top of the guide rail (460). The two ends of the bellows cover (480) are fixedly connected to the inner walls of the support base (420) and the support frame (110) respectively.

3. The shearing blade polishing device as described in claim 1, characterized in that: The upper end of the inner cavity of the support frame (110) is equipped with a polishing mechanism (300), including a height adjustment component (310) for height adjustment, a polishing component (320) for blade polishing, and a lateral movement component (500) for adjusting the position of the polishing mechanism (300).

4. The shearing blade polishing device as described in claim 3, characterized in that: The height adjustment assembly (310) includes a support plate (311), a servo cylinder (312) for height adjustment, a mounting plate (313) for fixing the polishing assembly (320), a slide rail (314) for limiting the mounting plate (313), and a slide block (315). The servo cylinder (312) is fixed to the top of the support plate (311). The slide rail (314) is fixedly connected to both sides of the surface of the support plate (311), and the slide block (315) is slidably connected to the surface of the slide rail (314). The mounting plate (313) is fixedly connected to the slide block (315), and the output end of the servo cylinder (312) is fixedly connected to the mounting plate (313).

5. The shearing blade polishing device as described in claim 4, characterized in that: The polishing assembly (320) includes a dust cover (321), a second motor (322) for polishing, and a polishing roller (323). The dust cover (321) is fixed to the surface of the mounting plate (313), and the polishing roller (323) is fixed to the inner cavity of the dust cover (321) by bearings. The second motor (322) is fixed to one side of the dust cover (321), and its output shaft passes through the inner cavity of the dust cover (321) and is connected to the polishing roller (323) for transmission.

6. The shearing blade polishing device as described in claim 3, characterized in that: The transverse assembly (500) includes a crossbeam (510), a mounting bracket (520) for mounting the transverse assembly (500), a fourth motor (530) and a reducer (540) for providing moving power, a ball screw (550), a ball nut (560) and a fixing plate (570) for driving the polishing mechanism (300) to move, a connecting plate (590) for supporting the polishing mechanism (300), and a guide groove (580) for providing a limit. The ball screw (550), the ball nut (560) and the fixing plate (570) are all installed in the inner cavity of the mounting bracket (520), and the connecting plate (590) is fixedly connected to the support plate (311).

7. The shearing blade polishing device as described in claim 6, characterized in that: The crossbeam (510) is fixedly connected to the inner wall of the protective cover (120), the mounting bracket (520) is fixed to the surface of the crossbeam (510), the fourth motor (530) and the reducer (540) are both fixed to one end of the mounting bracket (520), guide grooves (580) are provided at the top and bottom of the mounting bracket (520), the ball screw (550) is movably connected to the inner wall of the mounting bracket (520) through a bearing, and the ball nut (560) is sleeved on the ball screw (510). The surface of the ball nut (560) is threaded to the ball screw (550). One end of the ball nut (560) is fixedly connected to the fixing plate (570). Both ends of the fixing plate (570) pass through the guide groove (580) and are fixedly connected to the connecting plate (590). The output shaft of the fourth motor (530) is drivenly connected to the input shaft of the reducer (540). The output shaft of the reducer (540) passes through the inner cavity of the mounting bracket (520) and is drivenly connected to the ball screw (550).

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