Thread grinding and polishing device for worm machining

Abstract

The invention belongs to the technical field of worm machining, and particularly relates to a worm machining thread grinding and polishing device which comprises a machine tool body, a worm body is installed on one side of the upper portion of the machine tool body, a supporting frame is fixed to one side of the top end of the machine tool body, a moving seat is arranged in the supporting frame, and a lifting seat is arranged below the moving seat. A mounting base is mounted at the bottom end of the lifting base, a cutting tool bit is fixed to the bottom end of the mounting base, two polishing heads are arranged below the mounting base, a movable cavity is formed in the bottom end of the mounting base, a connecting box is slidably connected into the movable cavity, an electric telescopic rod is mounted in the movable cavity, and a second motor is mounted in the connecting box; the grinding head is driven by the electric telescopic rod to move downwards so that the grinding head can make contact with the threaded surface of the worm main body, the grinding head is driven by the second motor to grind burrs and stripes of threads, meanwhile, metal powder can be collected through the dust collection manifold, and the metal powder can be prevented from splashing to the ground or the top end 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 drive consists of a worm and a worm wheel, and is used to transmit motion and power between staggered axes. In general worm drives, 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, including a clamping mechanism and a grinding mechanism. The turntable rotates to drive the grinding wire to rub and polish the inside of the spiral teeth of the worm. The grinding wire in the traction state can contact the curved surface of the spiral teeth in all directions.

[0004] When the above technical solution is in use, 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 on 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, 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 comprises 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 moving seat is arranged inside the support frame, a lifting seat is arranged below the moving 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 arranged 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 inside 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 to the top, a transmission wheel is arranged 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 arranged on the side of the grinding head away from the cutting head, the dust suction manifold is arranged with two feed ports, 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, one end of the dust suction manifold away from the grinding head is connected with the collecting box through a pipeline, a metal mesh belt is arranged 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 arranged, and a second gear is fixed to the top of the first gear away from the second motor through a connecting shaft, an exhaust pipe is arranged on the side of the second gear away from the second motor, and an impeller is rotatably connected inside the exhaust pipe.

[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 outside 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 chamfered surface is provided at the bottom end of the positioning block, and a groove body matching the chamfered surface is provided inside the telescopic hole.

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

[0013] Preferably, a transmission gear is fixed to the bottom end of the impeller, the second gear is meshedly connected to 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 arranged at the four corners of the metal mesh belt, the rotating rods are rotatably connected to the collecting box, and a first motor is installed on the side of the collecting box close to the connecting box, and the end of one of the rotating rods is fixedly connected to the rotating shaft of the first motor, a storage cavity is opened under the collecting box, and a fixing plug is provided at the bottom end of the storage cavity, and a magnet is provided inside the metal mesh belt, and the magnet is arranged above the connection between the dust collection manifold and the collecting box, and 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 collecting box, the baffle rod is fixed to the inside of the collecting 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 and connected with the gear of the rotating rod.

[0016] Preferably, the collection box is internally rotatably connected with 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 of the metal mesh belt, and the diameters of the two 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: 1. The worm thread grinding and polishing device described in the present invention drives the grinding head to move downward through an electric telescopic rod so that the grinding head can contact the thread surface of the worm body, and drives the grinding head to grind the burrs and stripes of the thread through a second motor. At the same time, the metal powder can be collected through a dust suction manifold to prevent the metal powder from splashing onto the ground or the top of the machine tool body.

[0018] 2. The worm thread grinding and polishing device described in the present invention can achieve 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

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the structure of the mobile seat in the present invention; Figure 3 It is a schematic diagram of the lifting seat structure in the present invention; Figure 4 It is a schematic diagram of the structure of the connection box in the present invention; Figure 5 It is a schematic diagram of the internal structure of the connection box in the present invention; Figure 6 It is a schematic diagram of the structure of the grinding head in the present invention; Figure 7 It is a schematic diagram of the internal structure of the transmission wheel in the present invention; Figure 8 It is a schematic diagram of the internal structure of the air extraction pipe in the present invention; Fig. 9 It is a schematic diagram of the internal structure of the collection box in the present invention; Fig.10 It is a schematic diagram of the metal blade structure in the present invention.

[0021] In the figure: 1, machine tool body; 11, support frame; 111, moving seat; 112, lifting seat; 12, mounting seat; 121, cutting head; 122, movable 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 suction 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. Stop rod; 373. Support rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figures 1 to 9As shown, a worm thread grinding and polishing device described in an embodiment of the present 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 tool 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 one side of the cutting tool head 121, a movable cavity 122 is opened at the bottom end of the mounting seat 12, a connecting box 31 is slidably connected inside 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 A transmission wheel 35 is arranged above the grinding head 3, and the transmission wheel 35 is meshedly connected with the first gear 341. Two rotating seats 311 are fixed to the bottom end of the connection box 31, and the transmission wheel 35 is rotatably connected to the inside of the rotating seat 311. A dust collection manifold 33 is arranged on the side of the grinding head 3 away from the cutting head 121, and the dust collection manifold 33 is provided with two feed ports, and the two feed ports 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 connection box 31 close to the dust collection manifold 33, and the dust collection manifold 33 is provided with a dust collection box 331. One end of the manifold 33 away from the grinding head 3 is connected to the collection box 331 through a pipeline. A metal mesh belt 334 is arranged 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 arranged. A second gear 342 is fixed to the top of the first gear 341 away from the second motor 34 through a connecting shaft. An exhaust pipe 36 is arranged on the side of the second gear 342 away from the second motor 34. An impeller 361 is rotatably connected to the exhaust pipe 36. 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 of the mounting seat 12 to move to the position where turning is required. Then, the lifting seat 112 controls the cutting head 121 to move downward, 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 active 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 the burrs on the edge of the thread and the stripes on the surface of the thread can be polished off. 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; 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 threads 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 airflow. The metal mesh belt 334 inside the collection box 331 can filter out the metal powder in the airflow. 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.

[0024] like Figures 1 to 7 As shown, a curved surface 356 is provided above the side surface of the grinding head 3; 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.

[0025] like Figures 1 to 7As shown, 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 outside 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; When cutting and grinding, the moving 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 moving 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 out 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 transmit the power to the grinding head 3, so the grinding head 3 can stop rotating, which can prevent the grinding head 3 from excessively grinding the threaded surface of the worm body 2 to form a notch.

[0026] 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; When the positioning block 353 is separated from the telescopic hole 351, the transmission wheel 35 will continue to rotate. At this time, a steering plate 355 is set to prevent the transmission wheel 35 from transmitting the spring 354. The steering plate 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.

[0027] like Figures 1 to 7 As shown, the bottom end of the positioning block 353 is provided with an oblique cut surface, and the telescopic hole 351 is provided with a groove body matching the oblique cut surface; 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 beveled surface at the bottom 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.

[0028] like Figures 1 to 7 As 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; When the positioning block 353 extends from 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 issue a warning to remind the staff. The staff can know from the warning that the grinding position is offset, and then they can adjust the grinding position, so that they can understand the current grinding situation more timely.

[0029] 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 and connected with the transmission gear, and one side of the exhaust pipe 36 is connected to the top of the collection box 331 through a pipeline; 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 manifold 33 can automatically vacuum while the grinding head 3 is grinding.

[0030] like Figures 8 to 9 As shown, four rotating rods 335 are arranged 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 with the collection box 331. A first motor 332 is installed on the 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 opened below the collection box 331, and a fixing plug is arranged at the bottom end of the storage chamber 333. A magnet 336 is arranged 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, and the magnet 336 is fixed inside the collection box 331. When the metal mesh belt 334 filters out the metal powder in the airflow, long-term filtering will cause the small holes inside the metal mesh belt 334 to be blocked, and then the filtering cannot continue. To prevent this problem, the 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 the 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 storage cavity 333 due to gravity, which can automatically tighten the metal powder and prevent the metal mesh belt 334 from being blocked.

[0031] like Figures 1 to 10As shown, a rotating shaft 37 is provided on the side of the magnet 336 away from the dust collecting manifold 33, 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 collecting box 331, the stop rod 372 is fixed to the inside of the collecting box 331, a gear is fixed to one end of the rotating shaft 37, 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 and connected with the gear of the rotating rod 335; 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, so that part of the metal powder cannot 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 rod 372. The baffle rod 372 limits the metal blade 371 and deforms the metal blade 371. When the metal blade 371 passes through the baffle rod 372, it will automatically restore its shape due to its own elastic force. At this time, the metal blade 371 will bounce on the inner side 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.

[0032] like Figures 9 and 10 As shown, the collection box 331 is internally rotatably connected with a support rod 373, which is arranged below the metal mesh belt 334, and 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 close to the bottom end of the metal mesh belt 334, and the diameters of the two ends of the support rod 373 are larger than the diameter of the middle part; 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 collecting 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 in conveying metal powder.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A worm thread grinding and polishing device, characterized in that: 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 arranged above the grinding head (3). ), the transmission wheel (35) is meshedly connected with the first gear (341), two rotating seats (311) are fixed at the bottom end of the connection box (31), the transmission wheel (35) is rotatably connected inside 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 collection box (331) is fixed on the side of the connection box (31) close to the dust collection manifold (33), the dust collection manifold (33) is far away from the grinding head (3). One end away from the grinding head (3) is connected to the collection box (331) through a pipeline, a metal mesh belt (334) is arranged 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 arranged, and a second gear (342) is fixed to the top of the first gear (341) away from the second motor (34) through a connecting shaft, and an exhaust pipe (36) is arranged on the side of the second gear (342) away from the second motor (34), and the exhaust pipe (36) is rotatably connected to the inside of the exhaust pipe (36) with an impeller (361).

2. A 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. A 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 provided inside the transmission wheel (35), a spring (354) is sleeved outside 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 arranged in a hemispherical shape.

4. A worm thread grinding and polishing device according to claim 3, characterized in that: A steering plate (355) is fixed to the top end of the spring (354). The steering plate (355) is sleeved on the outside of the guide column (352). The steering 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 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), the second gear (342) is meshedly connected to the transmission gear, and one side of the air extraction pipe (36) is connected to the top end of the collection box (331) through a pipeline.

8. A worm thread grinding and polishing device according to claim 7, characterized in that: Four rotating rods (335) are arranged inside the metal mesh belt (334), and the four rotating rods (335) are arranged at four corners of the metal mesh belt (334) respectively. 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 an end of one of the rotating rods (335) is fixedly connected to the rotating shaft of the first motor (332). A storage cavity (333) is provided below the collection box (331), and a fixing plug is provided at the bottom end of the storage cavity (333). A magnet (336) is arranged 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), and the magnet (336) is fixed inside the collection box (331).

9. A 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), 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), 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), 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. A worm thread grinding and polishing device according to claim 9, characterized in that: A support rod (373) is rotatably connected inside the collection box (331). 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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