A worm thread grinding and polishing device

Abstract

The present invention belongs to the technical field of worm processing, and specifically is a worm processing thread grinding and polishing device, comprising a machine tool main body, a worm main body is installed on one side above the machine tool main body, a support frame is fixed on one side of the top of the machine tool main body, a movable seat is provided inside the support frame, a lifting seat is provided below the movable seat, a mounting seat is installed at the bottom end of the lifting seat, a cutting head is fixed at the bottom end of the mounting seat, two grinding heads are provided below the mounting seat, a movable cavity is opened at the bottom end of the mounting seat, a connecting box is slidably connected inside the movable cavity, an electric telescopic rod is installed inside the movable cavity, and a second motor is installed inside the connecting box; the electric telescopic rod drives the grinding head to move downward so that the grinding head can contact the thread surface of the worm main body, and the second motor drives the grinding head to grind the burrs and stripes of the thread, and at the same time, the dust suction manifold can collect metal powder to prevent the metal powder from splashing onto the ground or the top of the machine tool main body.

Description

Technical Field

[0001] The invention belongs to the technical field of worm processing, in particular to a worm processing thread grinding and polishing device. Background Art

[0002] The worm has multiple helical teeth that can mesh with the worm wheel. The worm transmission consists of a worm and a worm wheel, and is used to transmit motion and power between staggered axes. In general worm transmissions, the worm is the active component, and its surface is turned by the milling cutter of the machine tool when the worm is processed.

[0003] A Chinese patent with the existing announcement number CN109514397B discloses a worm blade surface grinding and polishing device, which includes a clamping mechanism and a grinding mechanism. The turntable rotates to drive the grinding wire to rub and polish the inside of the helical teeth of the worm. The grinding wire in the traction state can contact the curved surface of the helical teeth in all directions.

[0004] When using the above technical solution, the worm gear needs to be removed after turning and installed separately on a polishing device for grinding and polishing. The operation is relatively cumbersome, and a large amount of metal powder will be generated during the polishing process. The metal powder will fall to the ground or the processing table due to the movement of the grinding line, which is difficult to clean. The metal powder may also be stuck in the gap of the grinding line, causing scratches on the thread surface and affecting the grinding effect.

[0005] To this end, the present invention provides a worm thread grinding and polishing device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a worm thread processing grinding and polishing device described in the present invention includes a machine tool body, a worm body is installed on one side above the machine tool body, a support frame is fixed on one side of the top of the machine tool body, a movable seat is provided inside the support frame, a lifting seat is provided below the movable seat, a mounting seat is installed at the bottom end of the lifting seat, a cutting head is fixed at the bottom end of the mounting seat, two grinding heads are provided below the mounting seat, the two grinding heads are arranged on one side of the cutting head, a movable cavity is opened at the bottom end of the mounting seat, a connecting box is slidably connected to the inside of the movable cavity, an electric telescopic rod is installed inside the movable cavity, the bottom end of the electric telescopic rod is fixedly connected to the connecting box, the grinding head is rotatably connected to the bottom of the connecting box, a second motor is installed inside the connecting box, and the shaft end of the second motor A first gear is fixed on the top, a transmission wheel is provided above the grinding head, the transmission wheel is meshed with the first gear, two rotating seats are fixed to the bottom end of the connecting box, the transmission wheel is rotatably connected to the inside of the rotating seat, a dust suction manifold is provided on the side of the grinding head away from the cutting head, the dust suction manifold is provided with two feed ports, and the two feed ports are respectively aligned with the two sides away from the two grinding heads, a collecting box is fixed on the side of the connecting box close to the dust suction manifold, the end of the dust suction manifold away from the grinding head is connected with the collecting box through a pipe, a metal mesh belt is provided inside the collecting box, and both sides of the metal mesh belt are close to the inner wall of the collecting box, two first gears are provided, and the top of the first gear away from the second motor is fixed with a second gear through a connecting shaft, and the side of the second gear away from the second motor is provided with an exhaust pipe, and the exhaust pipe is rotatably connected to the impeller.

[0008] Preferably, a curved surface is provided above the side surface of the grinding head.

[0009] Preferably, a guide column is fixed to the top of the grinding head, a positioning block is fixed to the top of the guide column, a telescopic hole is opened inside the transmission wheel, a spring is sleeved on the outside of the guide column, the bottom end of the spring is fixedly connected to the grinding head, and the bottom end of the grinding head is set to be hemispherical.

[0010] Preferably, a steering plate is fixed to the top end of the spring, the steering plate is sleeved on the outside of the guide column, and the steering plate is rotatably connected to the inside of the transmission wheel.

[0011] Preferably, a beveled surface is provided at the bottom end of the positioning block, and a groove body matching the beveled surface is provided inside the telescopic hole.

[0012] Preferably, a telescopic cavity is provided above the rotating seat, and a pressure sensor is fixed to the top of the telescopic cavity.

[0013] Preferably, a transmission gear is fixed to the bottom end of the impeller, the second gear is meshed with the transmission gear, and one side of the exhaust pipe is connected to the top of the collection box through a pipeline.

[0014] Preferably, four rotating rods are provided inside the metal mesh belt, and the four rotating rods are respectively provided at the four corners of the metal mesh belt. The rotating rods are rotatably connected to the collecting box. A first motor is installed on the side of the collecting box close to the connecting box. The end of one of the rotating rods is fixedly connected to the rotating shaft of the first motor. A storage cavity is opened at the bottom of the collecting box, and a fixing plug is provided at the bottom end of the storage cavity. A magnet is provided inside the metal mesh belt, and the magnet is provided above the connection between the dust collection manifold and the collecting box. The magnet is fixed inside the collecting box.

[0015] Preferably, a rotating shaft is provided on the side of the magnet away from the dust collection manifold, a plurality of metal blades are fixed at equal intervals on the outside of the rotating shaft, a baffle rod is provided on the side of the rotating shaft away from the magnet, the rotating shaft is rotatably connected to the inside of the collection box, the baffle rod is fixed to the inside of the collection box, a gear is fixed at one end of the rotating shaft, a gear is also fixed at one end of one of the rotating rods, and the gear of the rotating shaft is meshed with the gear of the rotating rod.

[0016] Preferably, the collection box is internally rotatably connected to a support rod, which is arranged below the metal mesh belt, and the metal mesh belt is located at the end of the magnet close to the rotating shaft. The top of the support rod is close to the bottom end of the metal mesh belt, and the diameters of both ends of the support rod are larger than the diameter of the middle part.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The worm thread grinding and polishing device described in the present invention drives the grinding head downward by an electric telescopic rod to make the grinding head contact the thread surface of the worm body, and drives the grinding head to grind the burrs and stripes of the thread by a second motor. At the same time, the dust suction manifold can collect metal powder to prevent the metal powder from splashing onto the ground or the top of the machine tool body.

[0019] 2. The worm thread processing grinding and polishing device described in the present invention can realize automatic separation of the positioning block and the telescopic hole when the grinding position of the grinding head on the worm main body thread is offset through the docking between the positioning block and the telescopic hole, thereby preventing the grinding head from over-grinding the thread. At the same time, the current status of the grinding head can be timely understood through the pressure sensor, which is convenient for the staff to handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a perspective view of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the mobile seat in the present invention;

[0023] Figure 3 It is a schematic diagram of the lifting seat structure in the present invention;

[0024] Figure 4 It is a schematic structural diagram of the connection box in the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the connection box in the present invention;

[0026] Figure 6 It is a schematic structural diagram of the grinding head in the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the transmission wheel in the present invention;

[0028] Figure 8 Schematic diagram of the internal structure of the air extraction pipe in the present invention;

[0029] Figure 9 It is a schematic diagram of the internal structure of the collection box in the present invention;

[0030] Figure 10 It is a schematic diagram of the metal blade structure in the present invention.

[0031] In the figure: 1. Machine tool body; 11. Support frame; 111. Moving seat; 112. Lifting seat; 12. Mounting seat; 121. Cutting head; 122. Active cavity; 2. Worm body; 3. Grinding head; 31. Connecting box; 311. Rotating seat; 312. Telescopic cavity; 313. Pressure sensor; 32. Electric telescopic rod; 33. Dust manifold; 331. Collection box; 332. First motor; 333. Storage cavity; 3 34. Metal mesh belt; 335. Rotating rod; 336. Magnet; 34. Second motor; 341. First gear; 342. Second gear; 35. Transmission wheel; 351. Telescopic hole; 352. Guide column; 353. Positioning block; 354. Spring; 355. Steering plate; 356. Arc surface; 36. Exhaust pipe; 361. Impeller; 37. Rotating shaft; 371. Metal blade; 372. Baffle rod; 373. Support rod. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] like Figures 1 to 9As shown, a worm thread processing grinding and polishing device according to an embodiment of the present invention includes a machine tool body 1, a worm body 2 is installed on one side above the machine tool body 1, a support frame 11 is fixed on one side of the top of the machine tool body 1, a moving seat 111 is provided inside the support frame 11, a lifting seat 112 is provided below the moving seat 111, a mounting seat 12 is installed at the bottom end of the lifting seat 112, a cutting head 121 is fixed at the bottom end of the mounting seat 12, two grinding heads 3 are provided below the mounting seat 12, the two grinding heads 3 are arranged on one side of the cutting head 121, a movable cavity 122 is opened at the bottom end of the mounting seat 12, a connecting box 31 is slidably connected to the inside of the movable cavity 122, an electric telescopic rod 32 is installed inside the movable cavity 122, the bottom end of the electric telescopic rod 32 is fixedly connected to the connecting box 31, the grinding head 3 is rotatably connected to the bottom of the connecting box 31, a second motor 34 is installed inside the connecting box 31, a first gear 341 is fixed to the end of the rotating shaft of the second motor 34, and the grinding head 3 is provided with a transmission wheel 35, which is meshed with the first gear 341. Two rotating seats 311 are fixed to the bottom of the connecting box 31. The transmission wheel 35 is rotatably connected to the inside of the rotating seat 311. A dust collection manifold 33 is provided on the side of the grinding head 3 away from the cutting head 121. The dust collection manifold 33 is provided with two feed ports, which are respectively aligned with the two sides away from the two grinding heads 3. A collection box 331 is fixed on the side of the connecting box 31 close to the dust collection manifold 33. The end of the manifold 33 away from the grinding head 3 is connected to the collection box 331 through a pipe. A metal mesh belt 334 is provided inside the collection box 331. Both sides of the metal mesh belt 334 are close to the inner wall of the collection box 331. Two first gears 341 are provided. The top of the first gear 341 away from the second motor 34 is fixed with a second gear 342 via a connecting shaft. The side of the second gear 342 away from the second motor 34 is provided with an exhaust pipe 36. The exhaust pipe 36 is rotatably connected to the impeller 361.

[0034] When processing the worm, it is necessary to process a finished steel into a thread. At this time, the worm body 2 to be processed is fixed by a fixed structure on one side of the top of the machine tool body 1, and then the machine tool body 1 drives the worm body 2 to rotate. During the rotation, the electric cylinder of the support frame 11 drives the moving seat 111 to move, and the moving seat 111 drives the cutting head 121 at the bottom end of the mounting seat 12 to move to the position where turning is required. Then, the cutting head 121 is controlled to move downward by the lifting seat 112, so that the cutting head 121 can turn the surface of the worm body 2 into a thread. However, there will be burrs on the edge of the thread at this time, and there will be stripes on the thread surface, which will affect the subsequent use. Therefore, the burrs and stripes of the worm body 2 need to be removed. Grinding, at this time, the lifting seat 112 is started to drive the cutting head 121 to rise, and at the same time, the connecting box 31 is pushed out from the inside of the movable cavity 122 through the electric telescopic rod 32. At this time, the grinding head 3 is pushed to the position in contact with the worm body 2, and then the second motor 34 is started to drive the transmission wheel 35 to rotate, and the transmission wheel 35 drives the grinding head 3 to rotate. The grinding head 3 contacts the thread of the worm body 2 and can grind off the burrs on the edge of the thread and the stripes on the surface of the thread. The two grinding heads 3 grind the threads of the worm body 2 in the same direction. While grinding, the machine tool body 1 drives the worm body 2 to rotate, and the moving seat 111 moves inside the support frame 11. The rotation speed and movement speed at this time are the same as those when the cutting head 121 is turning;

[0035] A large amount of metal powder will be generated during grinding. At this time, the impeller 361 rotates inside the exhaust pipe 36. The rotation of the impeller 361 can discharge the air inside the exhaust pipe 36 to the outside. At this time, negative pressure will be generated inside the exhaust pipe 36 below the impeller 361. The negative pressure can draw the air inside the collection box 331 into the exhaust pipe 36. At the same time, the collection box 331 absorbs air from the position where the grinding head 3 and the worm body 2 are in threaded contact through the dust suction manifold 33. At this time, the metal powder will enter the dust suction manifold 33 with the air, and then enter the collection box 331 through the air flow. The metal mesh belt 334 inside the collection box 331 can filter out the metal powder in the air flow. At this time, the metal powder can be concentrated and collected inside the collection box 331, which can prevent the metal powder from splashing onto the ground or the surface of the machine tool body 1.

[0036] like Figures 1 to 7 As shown, a curved surface 356 is provided above the side of the grinding head 3;

[0037] When the grinding head 3 grinds the thread of the worm body 2, the lower part of the grinding head 3 can grind the stripes on the thread surface, and the arc surface 356 can grind the burrs of the thread at the same time, so that the grinding head 3 can grind the burrs and stripes at the same time, reducing the grinding time.

[0038] like Figures 1 to 7As shown, a guide post 352 is fixed to the top of the grinding head 3, a positioning block 353 is fixed to the top of the guide post 352, a telescopic hole 351 is opened inside the transmission wheel 35, a spring 354 is sleeved on the outside of the guide post 352, and the bottom end of the spring 354 is fixedly connected to the grinding head 3. The bottom end of the grinding head 3 is set to be hemispherical;

[0039] During cutting and grinding, the movable seat 111 will move at a preset speed, but an error in the displacement distance may occur during the movement. When there is an error in the moving distance of the movable seat 111, the side of the grinding head 3 will be pushed by the edge of the thread, and the grinding head 3 will push the guide column 352 upward under the guidance of the arc surface 356. The guide column 352 pushes the positioning block 353 to extend from the inside of the telescopic hole 351, and the spring 354 is squeezed. When the grinding head 3 is pushed to a certain distance, the grinding head 3 cannot be ground at this time, and the positioning block 353 is separated from the telescopic hole 351. At this time, the transmission wheel 35 cannot drive the grinding head 3, which can stop the grinding head 3 from rotating, thereby preventing the grinding head 3 from excessively grinding the threaded surface of the worm body 2 to form notches.

[0040] like Figures 1 to 7 As shown, a steering piece 355 is fixed to the top of the spring 354, and the steering piece 355 is sleeved on the outside of the guide column 352, and the steering piece 355 is rotatably connected to the inside of the transmission wheel 35;

[0041] When the positioning block 353 is separated from the telescopic hole 351, the transmission wheel 35 will continue to rotate. At this time, in order to prevent the transmission wheel 35 from transmitting the spring 354, a steering piece 355 is provided. The steering piece 355 is rotatably connected to the transmission wheel 35. When the positioning block 353 is separated from the telescopic hole 351, the friction between the grinding head 3 and the thread will keep the spring 354 in a fixed state, so that the spring 354 will remain in a fixed state and will not be driven by the transmission wheel 35, thereby preventing the grinding head 3 from continuing to rotate.

[0042] like Figures 1 to 7 As shown, the bottom end of the positioning block 353 is provided with an oblique surface, and the interior of the telescopic hole 351 is provided with a groove body matching the oblique surface;

[0043] When deviation occurs and the staff needs to separate the grinding head 3 and the worm body 2, the grinding head 3 will rise. After rising, the elastic force of the spring 354 will push the grinding head 3 to reset. At this time, the grinding head 3 drives the positioning block 353 to move toward the inside of the telescopic hole 351 through the guide column 352. At this time, under the guidance of the bevel surface at the bottom end of the positioning block 353, the positioning block 353 can automatically align with the telescopic hole 351 when the transmission wheel 35 rotates, which makes it easier for the positioning block 353 to automatically reset to the inside of the telescopic hole 351.

[0044] like Figures 1 to 7As shown, a telescopic cavity 312 is provided above the rotating seat 311, and a pressure sensor 313 is fixed at the top of the telescopic cavity 312;

[0045] When the positioning block 353 extends from the inside of the telescopic hole 351, it will contact the pressure sensor 313. At this time, the pressure sensor 313 will stop all power after receiving the pressure, and at the same time issue a warning to remind the staff. The staff can know from the warning that the grinding position has shifted, and then they can adjust the grinding position, so that they can understand the current grinding situation more timely.

[0046] like Figures 1 to 8 As shown, a transmission gear is fixed to the bottom end of the impeller 361, the second gear 342 is meshed with the transmission gear, and one side of the exhaust pipe 36 is connected to the top of the collection box 331 through a pipe;

[0047] When the second motor 34 drives the first gear 341 to rotate, it will also drive another first gear 341 to rotate at the same time. At this time, the first gear 341 drives the second gear 342 to rotate, and the second gear 342 drives the impeller 361 to rotate through the gear, so that the dust collection manifold 33 can automatically collect dust while the grinding head 3 is grinding.

[0048] like Figures 8 and 9 As shown, four rotating rods 335 are provided inside the metal mesh belt 334, and the four rotating rods 335 are respectively arranged at the four corners of the metal mesh belt 334. The rotating rods 335 are rotatably connected to the collection box 331. A first motor 332 is installed on the side of the collection box 331 close to the connection box 31. The end of one of the rotating rods 335 is fixedly connected to the rotating shaft of the first motor 332. A storage chamber 333 is opened below the collection box 331, and a fixing plug is provided at the bottom end of the storage chamber 333. A magnet 336 is provided inside the metal mesh belt 334, and the magnet 336 is arranged above the connection between the dust collection manifold 33 and the collection box 331. The magnet 336 is fixed inside the collection box 331.

[0049] When the metal mesh belt 334 filters out metal powder in the air flow, long-term filtration will cause the small holes inside the metal mesh belt 334 to be blocked, and then the filtration cannot continue. To prevent this problem, a first motor 332 is set to drive the rotating rod 335 to rotate. When the rotating rod 335 rotates, it will drive the metal mesh belt 334 to roll. At this time, the metal mesh belt 334 can change the filtering area in real time. At the same time, the magnetic force of the magnet 336 can make the metal powder be adsorbed into the gap of the metal mesh belt 334. When the area of ​​the metal mesh belt 334 with metal powder rolls to the top of the storage cavity 333, the metal powder will leave the area with magnetic attraction of the magnet 336. At this time, the metal powder will fall into the inside of the storage cavity 333 due to gravity, which can automatically tighten the metal powder and prevent the metal mesh belt 334 from being blocked.

[0050] like Figures 1 to 10 As shown, a rotating shaft 37 is provided on the side of the magnet 336 away from the dust collection manifold 33, and a plurality of metal blades 371 are fixed at equal intervals on the outside of the rotating shaft 37. A blocking rod 372 is provided on the side of the rotating shaft 37 away from the magnet 336. The rotating shaft 37 is rotatably connected to the inside of the collection box 331, and the blocking rod 372 is fixed to the inside of the collection box 331. A gear is fixed to one end of the rotating shaft 37, and a gear is also fixed to one end of one of the rotating rods 335. The gear of the rotating shaft 37 is meshed with the gear of the rotating rod 335.

[0051] When the metal mesh belt 334 brings the metal powder to the top of the storage chamber 333, the metal powder will be magnetized by the magnet 336, causing part of it to be unable to fall from the inside of the metal mesh belt 334. Therefore, at the same time, the rotating shaft 37 is driven to rotate by the rotating rod 335. When the rotating shaft 37 rotates, the metal blade 371 is driven to rotate. After the metal blade 371 rotates, it will pass through the baffle 372. The baffle 372 limits the metal blade 371, causing the metal blade 371 to deform. After the metal blade 371 passes through the baffle 372, it will automatically restore its shape due to its own elastic force. At this time, the metal blade 371 will bounce on the inside of the metal mesh belt 334. At this time, the metal powder in the area above the storage chamber 333 of the metal mesh belt 334 can be vibrated to make it fall off, so that the magnetic metal powder can fall into the inside of the storage chamber 333.

[0052] like Figures 9 and 10 As shown, the collection box 331 is internally rotatably connected to a support rod 373, which is disposed below the metal mesh belt 334. The metal mesh belt 334 is located at the end of the magnet 336 near the rotating shaft 37. The top end of the support rod 373 is in close contact with the bottom end of the metal mesh belt 334. The diameters of the two ends of the support rod 373 are larger than the diameter of the middle portion.

[0053] When the metal blade 371 bounces toward the inside of the metal mesh belt 334, it may also affect the surface of the metal mesh belt 334 at the air inlet of the collection box 331. In order to prevent this situation, a support rod 373 is provided to support the metal mesh belt 334. When the metal blade 371 bounces toward the inside of the metal mesh belt 334, the support rod 373 can greatly reduce the impact on other areas of the metal mesh belt 334, and the smaller diameter of the middle part of the support rod 373 can avoid affecting the metal mesh belt 334's conveying of metal powder.

[0054] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A worm thread grinding and polishing device, characterized by: The invention comprises a machine tool body (1), a worm body (2) is installed on one side above the machine tool body (1), a support frame (11) is fixed on one side of the top of the machine tool body (1), a moving seat (111) is arranged inside the support frame (11), a lifting seat (112) is arranged below the moving seat (111), a mounting seat (12) is installed at the bottom end of the lifting seat (112), a cutting head (121) is fixed at the bottom end of the mounting seat (12), two grinding heads (3) are arranged below the mounting seat (12), and the two grinding heads (3) are arranged on the cutting head (121). ), a movable cavity (122) is provided at the bottom end of the mounting seat (12), a connecting box (31) is slidably connected to the inside of the movable cavity (122), an electric telescopic rod (32) is installed inside the movable cavity (122), the bottom end of the electric telescopic rod (32) is fixedly connected to the connecting box (31), the grinding head (3) is rotatably connected to the bottom of the connecting box (31), a second motor (34) is installed inside the connecting box (31), a first gear (341) is fixed to the end of the rotating shaft of the second motor (34), and a transmission wheel (35) is provided above the grinding head (3). ), the transmission wheel (35) is meshedly connected with the first gear (341), two rotating seats (311) are fixed to the bottom end of the connecting box (31), the transmission wheel (35) is rotatably connected to the inside of the rotating seat (311), a dust collection manifold (33) is provided on the side of the grinding head (3) away from the cutting head (121), the dust collection manifold (33) is provided with two feed ports, the two feed ports are respectively aligned with the two sides away from the two grinding heads (3), a collecting box (331) is fixed on the side of the connecting box (31) close to the dust collection manifold (33), the dust collection manifold (33) is away One end away from the grinding head (3) is connected to the collection box (331) through a pipe, a metal mesh belt (334) is provided inside the collection box (331), and both sides of the metal mesh belt (334) are close to the inner wall of the collection box (331), two first gears (341) are provided, and the top end of the first gear (341) away from the second motor (34) is fixed with a second gear (342) through a connecting shaft, and an exhaust pipe (36) is provided on the side of the second gear (342) away from the second motor (34), and the interior of the exhaust pipe (36) is rotatably connected to an impeller (361).

2. The worm thread grinding and polishing device according to claim 1, characterized in that: A curved surface (356) is provided above the side surface of the grinding head (3).

3. The worm thread grinding and polishing device according to claim 1, characterized in that: A guide column (352) is fixed to the top of the grinding head (3), a positioning block (353) is fixed to the top of the guide column (352), a telescopic hole (351) is opened inside the transmission wheel (35), a spring (354) is sleeved on the outside of the guide column (352), the bottom end of the spring (354) is fixedly connected to the grinding head (3), and the bottom end of the grinding head (3) is set to be hemispherical.

4. The worm thread grinding and polishing device according to claim 3, characterized in that: A deflector plate (355) is fixed to the top end of the spring (354). The deflector plate (355) is sleeved on the outside of the guide column (352). The deflector plate (355) is rotatably connected to the inside of the transmission wheel (35).

5. The worm thread grinding and polishing device according to claim 3, characterized in that: The bottom end of the positioning block (353) is provided with an oblique cut surface, and a groove body matching the oblique cut surface is provided inside the telescopic hole (351).

6. The worm thread grinding and polishing device according to claim 3, characterized in that: A telescopic cavity (312) is provided above the rotating seat (311), and a pressure sensor (313) is fixed at the top end of the telescopic cavity (312).

7. The worm thread grinding and polishing device according to claim 1, characterized in that: A transmission gear is fixed to the bottom end of the impeller (361), and the second gear (342) is meshed with the transmission gear. One side of the air extraction pipe (36) is connected to the top end of the collection box (331) through a pipeline.

8. The worm thread grinding and polishing device according to claim 7, characterized in that: Four rotating rods (335) are provided inside the metal mesh belt (334), and the four rotating rods (335) are respectively provided at the four corners of the metal mesh belt (334). The rotating rods (335) are rotatably connected to the collection box (331). A first motor (332) is installed on a side of the collection box (331) close to the connection box (31), and the end of one of the rotating rods (335) is fixedly connected to the rotating shaft of the first motor (332). A storage chamber (333) is provided below the collection box (331), and a fixing plug is provided at the bottom end of the storage chamber (333). A magnet (336) is provided inside the metal mesh belt (334), and the magnet (336) is provided above the connection between the dust collection manifold (33) and the collection box (331). The magnet (336) is fixed inside the collection box (331).

9. The worm thread grinding and polishing device according to claim 8, characterized in that: A rotating shaft (37) is provided on the side of the magnet (336) away from the dust collection manifold (33), and a plurality of metal blades (371) are fixed at equal intervals on the outside of the rotating shaft (37). A stop rod (372) is provided on the side of the rotating shaft (37) away from the magnet (336). The rotating shaft (37) is rotatably connected to the inside of the collection box (331), and the stop rod (372) is fixed to the inside of the collection box (331). A gear is fixed to one end of the rotating shaft (37), and a gear is also fixed to one end of one of the rotating rods (335), and the gear of the rotating shaft (37) is meshed with the gear of the rotating rod (335).

10. The worm thread grinding and polishing device according to claim 9, characterized in that: The collecting box (331) is internally rotatably connected to a support rod (373). The support rod (373) is arranged below the metal mesh belt (334). The metal mesh belt (334) is located at the end of the magnet (336) close to the rotating shaft (37). The top end of the support rod (373) is in close contact with the bottom end of the metal mesh belt (334). The diameters of the two ends of the support rod (373) are larger than the diameter of the middle portion.

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