CN117773695A - A workpiece grinding device and a grinding method thereof - Google Patents

Abstract

The invention discloses a workpiece grinding device and a grinding method thereof, and belongs to the technical field of bucket tooth processing. A workpiece grinding device includes a grinding box, a grinding assembly is provided on the top of the inner cavity of the grinding box, and a partition is fixedly connected to the inner wall of the grinding box. Through grooves are provided on both sides of the partition, and the partition A cleaning component is provided above the grinding box, and the cleaning component runs through the grinding box and is connected to the grinding component. A collection box is movably placed at the bottom of the inner cavity of the grinding box, and a water tank is fixedly connected to the upper part of the grinding box. The water tank and the grinding box are Through holes are provided on both sides of the boxes that are in contact. This workpiece grinding device is equipped with a grinding component so that the device can automatically contact several grinding discs on the bucket teeth and drive the bucket teeth to rotate through the clamping plate, thereby automatically grinding the bucket teeth and avoiding the need for workers to hold tools. Grinding the bucket teeth reduces the labor intensity of the staff and improves the practical performance of the device.

Description

A workpiece grinding device and a grinding method thereof

Technical field

The present invention relates to the technical field of bucket tooth processing, and more specifically, to a workpiece grinding device and a grinding method thereof.

Background technique

Excavator bucket teeth are generally installed on the bucket of the excavator and are one of the important components of the excavator. Excavator bucket teeth are cast parts. After casting, there will be many burrs on the surface of the bucket teeth and in the latch holes of the bucket teeth. The current burrs on the bucket teeth of excavators mainly rely on the operator to hold them on the equipment, and then grind and polish them to remove them. When processing the burrs on the bucket teeth of the excavator, they rely entirely on manual hand-held grinding wheels for grinding, which causes the staff to The degree of labor is relatively large, making the grinding operation of bucket teeth extremely inefficient.

Based on this, the present invention designs a workpiece grinding device and a grinding method thereof to solve the above problems.

Summary of the invention

The object of the present invention is to provide a workpiece grinding device and a grinding method thereof to solve the problems raised in the above background technology.

A workpiece grinding device includes a grinding box, a grinding assembly is provided on the top of the inner cavity of the grinding box, and a partition is fixedly connected to the inner wall of the grinding box. Through grooves are provided on both sides of the partition, and the partition A cleaning component is provided above the grinding box, and the cleaning component runs through the grinding box and is connected to the grinding component. A collection box is movable at the bottom of the inner cavity of the grinding box, and a water tank is fixedly connected to the upper part of the grinding box. The water tank and the grinding box are There are through holes on both sides of the tank that are in contact with each other. The inner cavity of one of the through holes is provided with a pressure valve, and the positions of the two through holes correspond to each other. The inner cavity of the water tank is provided with a cooling assembly. The cooling assembly Passes through the water tank and connects to the grinding assembly.

Preferably, the grinding assembly includes several fixed sleeves fixedly connected to the top of the inner cavity of the grinding box. The inner cavity of the fixed sleeve is provided with a spring. One end of the spring is fixedly connected to the fixed sleeve, and the spring is fixedly connected to the inner cavity of the grinding box. The other end is connected to a limit plate, and a movable rod is fixedly connected to the outside of the limit plate. The movable rod penetrates the fixed sleeve and is fixedly connected to the movable plate. The side of the movable plate away from the movable rod is fixedly connected to a grinding sheet. , a rotating assembly is provided below the polishing piece.

Preferably, the rotating assembly includes a motor fixedly mounted on the outside of the polishing box, a driving bevel wheel 1 is fixedly connected to the output shaft of the motor, a driven bevel wheel 1 is meshed on the outside of the driving bevel wheel 1, a connecting rod is fixedly connected to the inner cavity of the driven bevel wheel 1, the outside of the connecting rod is rotatably connected to a connecting seat, the connecting seat is fixedly connected to the polishing box, both ends of the connecting rod are fixedly connected to a driving wheel 1, a belt 1 is sleeved on the outside of the driving wheel 1, and the driving wheel 1 is connected to a driven wheel 1 via a belt 1, a driving shaft is fixedly connected to the outside of the driven wheel 1, the driving shaft passes through the polishing box and is fixedly connected to a telescopic rod, and a clamping plate is fixedly connected to the output shaft of the telescopic rod.

Preferably, the cleaning assembly includes a two-way screw rotatably connected to the inner wall of the grinding box. One end of the two-way screw passes through the grinding box and is connected to a driving assembly, and the outside of the two-way screw is threadedly connected to a threaded seat. The threaded seat is A connecting plate is fixedly connected to the outside, a cleaning component is fixedly connected to one side of the connecting plate, and a guide seat is fixedly connected to the other side of the connecting plate. The inner cavity of the guide seat is slidingly connected to a guide rod. The guide rod Both ends of the grinding box are fixedly connected to the inner wall of the grinding box, and a protective ring is provided above the two-way screw and the guide rod, and the protective ring is fixedly connected to the grinding box.

Preferably, the driving assembly includes a connecting shaft that is rotatably connected to the outside of the grinding box. One end of the connecting shaft passes through the grinding box and is fixedly connected to the two-way screw, and the other end of the connecting shaft is fixedly connected to the driven wheel 2. There is a belt two on the outside of the driving wheel two, and the driven wheel two is connected to the driving wheel two through the belt two. The outside of the driving wheel two is fixedly connected with a fixed shaft, and the fixed shaft is fixedly connected with the driven wheel one.

Preferably, the cooling component includes a threaded rod rotatably connected to the top wall of the water tank. The top end of the threaded rod penetrates the water tank and is connected to a transmission component, and a threaded sleeve is threadedly connected to the outside of the threaded rod. The threaded sleeve An extrusion plate is fixedly connected to the bottom end of the extrusion plate, a limit rod is fixedly connected to the upper part of the extrusion plate, a connecting sleeve is slidably connected to the inner cavity of the limit rod, and the top end of the connecting sleeve is fixedly connected to the water tank.

Preferably, the transmission assembly includes a bearing seat fixedly connected above the water tank, the inner cavity of the bearing seat is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a driving bevel wheel 2, the outer side of the driving bevel wheel 2 is meshed with a driven bevel wheel 2, the outer side of the driven bevel wheel 2 is fixedly connected to a rotating shaft, the rotating shaft passes through the water tank and is fixedly connected to a threaded rod, the end of the rotating rod away from the driving bevel wheel 2 is fixedly connected to a driven wheel 3, the outer side of the driven wheel 3 is sleeved with a belt 3, and the driven wheel 3 is connected to the driving wheel 3 through the belt 3, the outer side of the driving wheel 3 is fixedly connected to a transverse axis, and the transverse axis is fixedly connected to the driven wheel 1.

Preferably, door body one and door body two are rotatably connected to the outside of the grinding box, and door body one and door body two are respectively located above and below the partition.

A method for polishing workpieces, the steps are as follows:

S1, open door 1, place the bucket teeth between the two clamping plates, so that the movable plate moves upward and compresses the spring, so that the grinding piece is pressed against the surface of the bucket teeth through the elastic force of the spring, and then controls the telescopic rod to work, so that the clamping plate Hold the plate to clamp the bucket teeth, and then control the motor to work so that as soon as the driving cone wheel drives the driven cone wheel to rotate, the connecting rod will drive the driving wheel to rotate, so that as the driven wheel drives the drive shaft to rotate, the telescopic rod will drive the The clamping plate rotates, thereby driving the bucket teeth to rotate relative to the grinding disc so that the bucket teeth can be polished;

S2, when the driven wheel 1 rotates, it will drive the fixed shaft to rotate, so that the driving wheel 2 drives the driven wheel 2 to rotate, and the connecting shaft will drive the two-way screw to rotate, so that the threaded seat drives the connecting plate to move laterally under the action of the thread. When the connecting plate moves, it will drive the brush to move synchronously, thereby sweeping the debris generated by grinding into the collection box through the slots on both sides of the partition;

S3, when the driven wheel 1 rotates, it will drive the horizontal axis to rotate, so that the driving wheel 3 drives the driven wheel 3 to rotate, the rotating rod will drive the active bevel wheel 2 to rotate, so that the driven bevel wheel 2 drives the rotating shaft to rotate, and the rotating shaft will drive the threaded rod to rotate, so that the threaded sleeve moves downward under the action of the thread, and the threaded sleeve drives the extrusion plate to move downward, so that the water in the water tank cavity is squeezed into the grinding box through the through hole to complete the cooling of the bucket teeth.

Compared with the existing technology, the advantages of the present invention are:

1) In the present invention, by setting up the grinding assembly, the device can automatically contact several grinding sheets on the bucket teeth, and drive the bucket teeth to rotate through the clamping plate, thereby automatically grinding the bucket teeth and avoiding the need for workers. Hand-held tools are used to grind bucket teeth, thereby reducing the labor intensity of workers and improving the practical performance of the device.

2) In the present invention, by setting the cleaning component, the device can automatically collect the debris generated during the grinding process into the collection box during the grinding process of the bucket teeth, thereby facilitating the grinding of the bucket teeth. The debris is sucked and collected, and because the door body keeps the inside of the grinding box closed, the generated debris is prevented from endangering the health of workers.

3) In the present invention, by providing a cooling assembly, the device can automatically control the water in the water tank to enter the inner cavity of the grinding box through the through hole during the grinding of the bucket teeth, thereby cooling the bucket teeth and avoiding the high temperature generated by grinding from reducing the quality of the bucket teeth, thereby achieving high-quality manufacturing of the bucket tooth surface and increasing the service life of the bucket teeth.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is an enlarged view of the structure at point A in Figure 1 of the present invention;

Figure 3 is a schematic diagram of the overall structure of the present invention from another perspective;

Figure 4 is an enlarged view of the structure at B in Figure 3 of the present invention;

Figure 5 is an enlarged view of the structure at C in Figure 3 of the present invention;

Figure 6 is a structural cross-sectional view of the grinding box of the present invention;

FIG7 is a schematic diagram of the structure of a cleaning assembly of the present invention;

Figure 8 is a cross-sectional view of the fixed sleeve structure of the present invention;

Figure 9 is a cross-sectional view of the water tank structure of the present invention.

Description of the numbers in the figure: 1. Grinding box; 2. Grinding components; 21. Fixed sleeve; 22. Spring; 23. Limit plate; 24. Movable rod; 25. Movable plate; 26. Grinding disc; 27. Motor; 28. Driving cone wheel one; 29. Driven cone wheel one; 210. Connecting rod; 211. Connecting seat; 212. Driving wheel one; 213. Belt one; 214. Driven wheel one; 215. Driving shaft; 216. Telescopic Rod; 217, clamping plate; 3, partition; 4, cleaning component; 41, two-way screw; 42, threaded seat; 43, connecting plate; 44, brush; 45, guide seat; 46, guide rod; 47, Protective ring; 48. Connecting shaft; 49. Driven pulley 2; 410. Belt 2; 411. Driving pulley 2; 412. Fixed shaft; 5. Collection box; 6. Water tank; 7. Through hole; 8. Cooling component; 81 , threaded rod; 82, threaded sleeve; 83, extrusion plate; 84, limit rod; 85, connecting sleeve; 86, bearing seat; 87, rotating rod; 88, driving cone wheel two; 89, driven cone Wheel two; 810, rotating shaft; 811, driven wheel three; 812, belt three; 813, driving wheel three; 814, horizontal axis; 9, door body one; 10, door body two.

Detailed ways

Embodiment: Please refer to Figures 1-9. A workpiece grinding device includes a grinding box 1. A grinding assembly 2 is provided on the top of the inner cavity of the grinding box 1, and a partition 3 is fixedly connected to the inner wall of the grinding box 1. The partition There are through slots on both sides of 3, and a cleaning component 4 is provided above the partition 3. The cleaning component 4 penetrates the grinding box 1 and is connected to the grinding component 2. A collection box 5 is movable at the bottom of the inner cavity of the grinding box 1. And a water tank 6 is fixedly connected to the top of the grinding box 1. A through hole 7 is provided on the side where the water tank 6 and the grinding box 1 are in contact. The inner cavity of one of the through holes 7 is provided with a pressure valve, and the two through holes 7 are provided with a pressure valve. The positions correspond to each other, and the inner cavity of the water tank 6 is provided with a cooling assembly 8. The cooling assembly 8 penetrates the water tank 6 and is connected to the grinding assembly 2. Among them, in order to facilitate the insertion or removal of the bucket teeth and the collection box 5, the outside of the grinding box 1 The first door body 9 and the second door body 10 are rotatably connected. The first door body 9 and the second door body 10 are respectively located above and below the partition 3 .

The grinding assembly 2 includes several fixed sleeves 21 fixedly connected to the top of the inner cavity of the grinding box 1. The inner cavity of the fixed sleeve 21 is provided with a spring 22. One end of the spring 22 is fixedly connected to the fixed sleeve 21, and the other end of the spring 22 is fixedly connected to the inner cavity of the grinding box 1. One end is connected to the limit plate 23, and a movable rod 24 is fixedly connected to the outside of the limit plate 23. The movable rod 24 penetrates the fixed sleeve 21 and is fixedly connected to the movable plate 25. The side of the movable plate 25 away from the movable rod 24 is fixedly connected to a polished The disc 26 is provided with a rotating assembly below the grinding disc 26. The rotating assembly includes a motor 27 fixedly installed on the outside of the grinding box 1. The output shaft of the motor 27 is fixedly connected with a driving cone wheel 28, and the outer side of the driving cone wheel 28 is engaged. There is a driven cone wheel 29. The inner cavity of the driven cone wheel 29 is fixedly connected with a connecting rod 210. The outside of the connecting rod 210 is rotationally connected with a connecting seat 211. The connecting seat 211 is fixedly connected to the grinding box 1. The connecting rod 210 Both ends are fixedly connected with a driving wheel 212. The outside of the driving wheel 212 is covered with a belt 213, and the driving wheel 212 is connected to a driven wheel 214 through the belt 213. The outside of the driven wheel 214 is fixedly connected with a driving wheel. The shaft 215 and the driving shaft 215 pass through the grinding box 1 and are fixedly connected to a telescopic rod 216. The output shaft of the telescopic rod 216 is fixedly connected to a clamping plate 217.

Specifically, the bucket tooth is placed between the two clamping plates 217, so that the movable plate 25 moves upward and compresses the spring 22, so that the grinding piece 26 is pressed against the surface of the bucket tooth through the elastic force of the spring 22, and then the telescopic rod 216 is controlled to work, The clamping plate 217 clamps the bucket teeth, and then controls the motor 27 to work, so that the driving cone wheel 28 drives the driven cone wheel 29 to rotate, and the connecting rod 210 drives the driving wheel 212 to rotate, so that the driven cone wheel 214 drives the When the drive shaft 215 rotates, the telescopic rod 216 will drive the clamping plate 217 to rotate, thereby driving the bucket teeth to rotate relative to the grinding blade 26 so that the bucket teeth can be polished.

The cleaning assembly 4 includes a bidirectional screw 41 rotatably connected to the inner wall of the polishing box 1, one end of the bidirectional screw 41 passes through the polishing box 1 and is connected to the driving assembly, and the outer side of the bidirectional screw 41 is threadedly connected to a threaded seat 42, the outer side of the threaded seat 42 is fixedly connected to a connecting plate 43, one side of the connecting plate 43 is fixedly connected to the cleaning assembly 4, and the other side of the connecting plate 43 is fixedly connected to a guide seat 45, the inner cavity of the guide seat 45 is slidably connected to a guide rod 46, both ends of the guide rod 46 are fixedly connected to the inner wall of the polishing box 1, and the bidirectional screw 41 and the guide rod 46 are fixedly connected to the inner wall of the polishing box 1. A protective ring 47 is provided on the top, and the protective ring 47 is fixedly connected to the polishing box 1. The driving assembly includes a connecting shaft 48 rotatably connected to the outside of the polishing box 1, one end of the connecting shaft 48 passes through the polishing box 1 and is fixedly connected to the bidirectional screw 41, and the other end of the connecting shaft 48 is fixedly connected to a driven wheel 2 49, a belt 2 410 is sleeved on the outer side of the driven wheel 2 49, and the driven wheel 2 49 is connected to a driving wheel 2 411 through the belt 2 410, and a fixed shaft 412 is fixedly connected to the outer side of the driving wheel 2 411, and the fixed shaft 412 is fixedly connected to the driven wheel 1 214.

Specifically, when the driven wheel 214 rotates, it will drive the fixed shaft 412 to rotate, so that the driving wheel 411 drives the driven wheel 49 to rotate, and the connecting shaft 48 will drive the two-way screw 41 to rotate, so that the thread seat 42 acts on the thread. Next, the connecting plate 43 is driven to move laterally. When the connecting plate 43 moves, it will drive the brush 44 to move synchronously, thereby sweeping the debris generated by grinding into the collection box 5 through the slots on both sides of the partition 3 .

The cooling component 8 includes a threaded rod 81 that is rotatably connected to the top wall of the water tank 6. The top of the threaded rod 81 penetrates the water tank 6 and is connected to a transmission component. The outside of the threaded rod 81 is threadedly connected with a threaded sleeve 82, and the threaded sleeve 82 is threaded. The bottom end is fixedly connected with an extrusion plate 83, and the upper part of the extrusion plate 83 is fixedly connected with a limit rod 84. The inner cavity of the limit rod 84 is slidably connected with a connecting sleeve 85, and the top of the connecting sleeve 85 is fixedly connected with the water tank 6. The transmission assembly includes a bearing seat 86 fixedly connected above the water tank 6. The inner cavity of the bearing seat 86 is rotatably connected with a rotating rod 87. One end of the rotating rod 87 is fixedly connected with a driving cone wheel 88, and the outer side of the driving cone wheel 88 is engaged with a rotating rod 87. The driven cone wheel 89 has a rotating shaft 810 fixedly connected to the outer side of the driven cone wheel 89. The rotating shaft 810 penetrates the water tank 6 and is fixedly connected to the threaded rod 81. One end of the rotating rod 87 away from the driving cone wheel 88 is fixedly connected to The driven wheel three 811 has a belt three 812 set on the outer side of the driven wheel three 811, and the driven wheel three 811 is connected to the driving wheel three 813 through the belt three 812. The outer side of the driving wheel three 813 is fixedly connected with a horizontal axis 814, and the horizontal axis 814 Fixedly connected with driven wheel 214.

Specifically, when the driven wheel one 214 rotates, it will drive the horizontal axis 814 to rotate, so that the driving wheel three 813 drives the driven wheel three 811 to rotate, and the rotating rod 87 will drive the driving cone wheel two 88 to rotate, so that the driven cone wheel 813 rotates. 289 drives the rotating shaft 810 to rotate, and the rotating shaft 810 will drive the threaded rod 81 to rotate, so that the threaded sleeve 82 moves downward under the action of the thread, and the threaded sleeve 82 will drive the extrusion plate 83 to move downward, thereby pushing the The water in the inner cavity of the water tank 6 is squeezed into the grinding box 1 through the through hole 7 to complete the cooling effect on the bucket teeth.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Under the premise, there will be various changes and improvements in the present invention, and these changes and improvements all fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A workpiece grinding device, including a grinding box (1), characterized in that: a grinding assembly (2) is provided on the top of the inner cavity of the grinding box (1), and the inner wall of the grinding box (1) is fixedly connected with The partition (3) is provided with through grooves on both sides of the partition (3), and a cleaning component (4) is provided above the partition (3), and the cleaning component (4) penetrates the grinding box (1) And connected with the grinding assembly (2), a collection box (5) is movablely placed at the bottom of the inner cavity of the grinding box (1), and a water tank (6) is fixedly connected above the grinding box (1), and the water tank (6) is fixedly connected to the grinding box (1). 6) A through hole (7) is provided on the side that is in contact with the grinding box (1). A pressure valve is provided in the inner cavity of one of the through holes (7), and the two through holes (7) are located at the same position. Correspondingly, the inner cavity of the water tank (6) is provided with a cooling assembly (8), and the cooling assembly (8) penetrates the water tank (6) and is connected to the grinding assembly (2); The grinding assembly (2) includes several fixed sleeves (21) fixedly connected to the top of the inner cavity of the grinding box (1). The inner cavity of the fixed sleeve (21) is provided with a spring (22). The spring One end of (22) is fixedly connected to the fixed sleeve (21), and the other end of the spring (22) is connected to the limiting plate (23). The outer side of the limiting plate (23) is fixedly connected to a movable rod (24). The movable rod (24) penetrates the fixed sleeve (21) and is fixedly connected with a movable plate (25). The side of the movable plate (25) away from the movable rod (24) is fixedly connected with a grinding piece (26), so A rotating assembly is provided below the grinding disc (26). 2. A workpiece grinding device according to claim 1, characterized in that: the rotating assembly includes a motor (27) fixedly installed outside the grinding box (1), and the output shaft of the motor (27) is fixed A driving cone wheel one (28) is connected, a driven cone wheel one (29) is engaged with the outside of the driving cone wheel one (28), and a connecting rod is fixedly connected to the inner cavity of the driven cone wheel one (29) (210), the outer side of the connecting rod (210) is rotatably connected to a connecting seat (211), the connecting seat (211) is fixedly connected to the grinding box (1), and both ends of the connecting rod (210) are fixed. A driving wheel one (212) is connected, a belt one (213) is set on the outside of the driving wheel one (212), and the driving wheel one (212) is connected to a driven wheel one (214) through the belt one (213), A drive shaft (215) is fixedly connected to the outside of the driven wheel one (214). The drive shaft (215) penetrates the grinding box (1) and is fixedly connected with a telescopic rod (216). The telescopic rod (216) A clamping plate (217) is fixedly connected to the output shaft. 3. A workpiece grinding device according to claim 1, characterized in that: the cleaning component (4) includes a bidirectional screw (41) rotatably connected to the inner wall of the grinding box (1), the bidirectional screw (41) ) penetrates the grinding box (1) and is connected to the driving assembly, and the outer side of the two-way screw (41) is threadedly connected to a threaded seat (42), and the outer side of the threaded seat (42) is fixedly connected to a connecting plate (43), A cleaning component (4) is fixedly connected to one side of the connecting plate (43), and a guide seat (45) is fixedly connected to the other side of the connecting plate (43). The inner cavity of the guide seat (45) is slidingly connected. There is a guide rod (46). Both ends of the guide rod (46) are fixedly connected to the inner wall of the grinding box (1), and a protective ring (47) is provided above the two-way screw (41) and the guide rod (46). ), the protective ring (47) is fixedly connected to the grinding box (1). 4. A workpiece grinding device according to claim 3, characterized in that: the driving assembly includes a connecting shaft (48) rotatably connected to the outside of the grinding box (1), and one end of the connecting shaft (48) passes through The grinding box (1) is fixedly connected to the two-way screw (41), and the other end of the connecting shaft (48) is fixedly connected with the second driven wheel (49). The outer side of the second driven wheel (49) is covered with a belt (2) 410), and the second driven wheel (49) is connected to the second driving wheel (411) through the second belt (410), and the outer side of the second driving wheel (411) is fixedly connected with a fixed shaft (412), and the fixed shaft (412) ) is fixedly connected to the driven wheel one (214). 5. A workpiece grinding device according to claim 1, characterized in that: the cooling assembly (8) includes a threaded rod (81) rotatably connected to the top wall of the water tank (6), the threaded rod (81) ) penetrates the water tank (6) and is connected to the transmission assembly, and the outside of the threaded rod (81) is threadedly connected to a threaded sleeve (82), and the bottom end of the threaded sleeve (82) is fixedly connected to an extrusion plate ( 83), a limiting rod (84) is fixedly connected to the top of the extrusion plate (83), and a connecting sleeve (85) is slidably connected to the inner cavity of the limiting rod (84). The connecting sleeve (85) ) is fixedly connected to the water tank (6). 6. A workpiece grinding device according to claim 5, characterized in that: the transmission assembly includes a bearing seat (86) fixedly connected above the water tank (6), and the inner cavity of the bearing seat (86) rotates A rotating rod (87) is connected. One end of the rotating rod (87) is fixedly connected with a driving cone wheel two (88). The outer side of the driving cone wheel two (88) is engaged with a driven cone wheel two (89). A rotating shaft (810) is fixedly connected to the outer side of the second driven cone wheel (89). The rotating shaft (810) penetrates the water tank (6) and is fixedly connected to the threaded rod (81). The rotating rod (87) One end away from the driving cone wheel two (88) is fixedly connected with the driven wheel three (811). The outer side of the driven wheel three (811) is covered with a belt three (812), and the driven wheel three (811) passes through the belt three (812). 812) is connected to the driving wheel three (813), the outer side of the driving wheel three (813) is fixedly connected to a transverse shaft (814), and the transverse shaft (814) is fixedly connected to the driven wheel one (214). 7. A workpiece grinding device according to claim 1, characterized in that: the outer side of the grinding box (1) is rotatably connected with a door body 1 (9) and a door body 2 (10), and the door body 1 (9) and the door body 2 (10) are respectively located above and below the partition (3). 8. A method for polishing workpieces, characterized in that it is applied to a workpiece polishing device according to any one of claims 1 to 8, and the steps are as follows: S1, open door one (9), place the bucket teeth between the two clamping plates (217), so that the movable plate (25) moves upward and compresses the spring (22), so that the elastic force of the spring (22) will grind the The piece (26) is against the bucket tooth surface, and then the telescopic rod (216) is controlled to work so that the clamping plate (217) clamps the bucket teeth, and then the motor (27) is controlled to work, so that the driving cone wheel (28) drives the slave When the cone wheel one (29) rotates, the connecting rod (210) will drive the driving wheel one (212) to rotate, so that the driven wheel one (214) will drive the driving shaft (215) to rotate, and the telescopic rod (216) will drive the clamping The plate (217) rotates, thereby driving the bucket teeth to rotate relative to the grinding disc (26) in order to grind the bucket teeth; S2, when the driven wheel one (214) rotates, it will drive the fixed shaft (412) to rotate, so that the driving wheel two (411) drives the driven wheel two (49) to rotate, and the connecting shaft (48) will drive the two-way screw (41) ) rotates, so that the thread seat (42) drives the connecting plate (43) to move laterally under the action of the thread. When the connecting plate (43) moves, it will drive the brush (44) to move synchronously, thereby removing the debris generated by grinding. Sweep it down into the collection box (5) through the slots on both sides of the partition (3); S3, when the driven wheel 1 (214) rotates, it drives the horizontal shaft (814) to rotate, so that the driving wheel 3 (813) drives the driven wheel 3 (811) to rotate, and the rotating rod (87) drives the driving cone wheel 2 (88) to rotate, so that the driven cone wheel 2 (89) drives the rotating shaft (810) to rotate, and the rotating shaft (810) drives the threaded rod (81) to rotate, so that the threaded sleeve (82) moves downward under the action of the thread, and the threaded sleeve (82) drives the extrusion plate (83) to move downward, so that the water in the inner cavity of the water tank (6) is squeezed into the grinding box (1) through the through hole (7), thereby completing the cooling of the bucket teeth.