Polishing device for mechanical part production

Abstract

The invention relates to the technical field of part polishing, in particular to a mechanical part production polishing device which comprises a treatment box, a sand blasting mechanism, a crushing mechanism, a demagnetization mechanism and a scraping mechanism. According to the polishing device, used polishing sand is collected through the material collecting channel, the caked polishing sand is extruded and crushed through relative rotation of the two crushing rollers, demagnetization rollers are matched with demagnetization needles to demagnetize and clean metal filings carried in the polishing sand, the polishing sand can be synchronously treated in the polishing process, and the polishing efficiency is improved. And one end of a push rod is forced to extrude air in a reciprocating manner in a connecting cylinder through the meshing effect between conical teeth and rotating teeth, and a connecting frame is forced to slide along the interior of a sleeve through the pressure effect, so that metal chips adsorbed on the surface of the degaussing needle are removed and scraped, and the working effect of the degaussing needle is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of part polishing, and particularly to a polishing device for the production of mechanical parts. Background Art

[0002] In the production and processing of gear parts, in order to ensure factors such as the meshing effect and working service life of gear parts, the gear parts after turning processing are usually polished.

[0003] A polishing device for the production of mechanical parts disclosed in the patent document with the publication number CN202410024556.8 in the prior art includes a box body. The upper end of the box body is hinged with a cover plate through a hinge. Two horizontal shafts are symmetrically and fixedly connected inside the box body. An outer shell is fixedly connected between the two horizontal shafts. The lower end of the outer shell is movably connected with a connecting frame. Two support rods are installed on the connecting frame. A plurality of support shafts are rotatably connected inside the box body through sealed bearings. The plurality of support shafts are distributed along an arc path. A grinding mechanism is installed on the support shafts. The grinding mechanism polishes the gear workpieces loaded on the two support rods through reciprocating motion. This polishing device for the production of mechanical parts can effectively improve the contact friction force between the grinding medium and the gear workpieces during polishing, is beneficial to polishing the teeth of the gears, and will not cause mechanical wear, improving the polishing quality and speed, and can also polish a batch of gear workpieces.

[0004] The above-mentioned existing patent still has the following problems: First, when grinding and polishing different gears, the existing device cannot perform corresponding adjustment processing on the grinding components, and can only grind and polish the teeth of gears of specific models and sizes, and the use effect is greatly limited. Moreover, it cannot effectively grind and polish gears with different functions, such as helical gears, bevel gears, etc. Secondly, the existing work is often in the form of sandblasting and polishing, which is an efficient and non-wasteful polishing form. However, after the existing sandblasting and polishing work is used, the polishing sand needs to be taken out for processing work, and the work is relatively cumbersome and the work efficiency is low. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background art, and a polishing device for the production of mechanical parts is proposed.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A polishing device for the production of mechanical parts, a processing box, the top of the processing box is clamped with a top cover, one side of the top cover is fixedly connected with a motor, and a tooth-pulling device is rotatably connected inside the top cover. The bottom of the tooth-pulling device penetrates to the bottom of the top cover. It further includes: A sandblasting mechanism, which is arranged inside the processing box and is used for sandblasting and polishing gear parts; A crushing mechanism, the crushing mechanism is rotatably connected to the inside of the processing box, and the crushing mechanism is used to crush the polishing sand that is agglomerated after use; A demagnetizing mechanism, which is rotatably connected to the interior of the processing box and is located below the crushing mechanism, and is used to demagnetize the polishing sand after use; And a scraping mechanism, wherein the scraping mechanism is arranged inside the demagnetization mechanism and is used to remove metal chips on the surface of the demagnetization mechanism.

[0007] In the above-mentioned polishing device for the production of mechanical parts, the sandblasting mechanism includes four sandblasting guns and four feed pipes. The four sandblasting guns are symmetrically arranged in pairs inside the processing box. The four feed pipes are respectively connected to the bottom of the four sandblasting guns. The other end of the feed pipe is connected to a material distributor, which is fixedly connected to the interior of the processing box. A collection channel is opened inside the processing box, and the bottom of the collection channel is connected to the top of the material distributor.

[0008] In the above-mentioned polishing device for the production of mechanical parts, the crushing mechanism includes two crushing rollers and two connecting columns. The two crushing rollers are symmetrically rotatably connected to the two sides of the aggregate channel, and the two crushing rollers rotate alternately with each other. The two connecting columns are respectively fixedly connected to one end of the two crushing rollers, and the connecting columns are rotatably connected to the inside of the processing box. The surfaces of the two connecting columns are fixedly sleeved with connecting teeth, and the two connecting teeth are meshed with each other.

[0009] In the above-mentioned polishing device for the production of mechanical parts, the demagnetization mechanism includes two demagnetization rollers and a plurality of demagnetization needles, the two demagnetization rollers are symmetrically rotatably connected to the inside of the processing box, and the two demagnetization rollers are symmetrically rotatably connected to the two sides of the inside of the aggregate channel, a plurality of demagnetization needles are evenly fixedly connected to the surface of the demagnetization rollers, the two demagnetization rollers are located below the two crushing rollers, one end of the two demagnetization rollers are respectively fixedly connected to two rotating columns, the surface of the rotating columns is fixedly sleeved with guide teeth, the two guide teeth are meshed with each other, the surface of one of the rotating columns is fixedly connected to a guide wheel, the output end of the motor is fixedly connected to a rotating wheel, the rotating wheel is connected to the guide wheel through a belt transmission, the surfaces of one connecting column and the other rotating column are fixedly sleeved with connecting wheels, and the two connecting wheels are connected through a belt transmission.

[0010] In the above-mentioned polishing device for the production of mechanical parts, the scraping mechanism includes a plurality of scraping rings, a plurality of connecting frames and a plurality of sleeves. The scraping rings are slidably connected to the inside of the demagnetization roller, and the scraping rings are slidably connected to the demagnetization needles. The connecting frame is fixedly connected to one side of the scraping ring, and the connecting frame is located inside the demagnetization roller. A plurality of sleeves are evenly arranged inside the demagnetization roller, and the connecting frame is slidably connected to the inside of the sleeve. The other end of the sleeve is connected to a conduit. A connecting block is arranged between two adjacent sleeves, and both sides of the connecting block are connected to the conduit.

[0011] In the above-mentioned polishing device for the production of mechanical parts, the other end of the degaussing roller is fixedly connected with a sleeve, one end of the sleeve away from the degaussing roller is fixedly connected with a bevel gear, one side of the bevel gear is engaged with a rotating gear, a push rod is hinged above the rotating gear, the push rod is slidably connected with the sleeve, a connecting cylinder is rotatably connected inside the degaussing roller, one end of the push rod away from the rotating gear is slidably connected with the inside of the connecting cylinder, a plurality of air guide rings are evenly rotatably connected to the surface of the connecting cylinder, a plurality of connecting blocks are fixedly connected to the surface of the air guide ring in a circumferential manner, air holes are formed on the surface of the connecting block, the other end of the air hole penetrates through the inner wall of the air guide ring, an opening is formed on the surface of the connecting cylinder and inside the air guide ring, and a plurality of air holes are intermittently communicated with the opening.

[0012] In the above-mentioned polishing device for the production of mechanical parts, a fixing frame is fixedly connected to the bottom of the top cover, a fixing shaft is fixedly connected to one side of the fixing frame, a spring block is arranged inside the other side of the fixing frame, and the other end of the fixing shaft is clamped with the fixing frame through the spring block.

[0013] In the above-mentioned polishing device for the production of mechanical parts, reset springs are symmetrically and fixedly connected to both sides inside the sleeve, and the other ends of the reset springs are fixedly connected to the connecting frame.

[0014] Compared with the existing technology, the advantages of this polishing device for the production of mechanical parts are as follows: 1. The used polishing sand is collected through the aggregate channel, and through the relative rotation of the two crushing rollers, the agglomerated polishing sand is squeezed and crushed, and the degaussing roller and the degaussing needle are used to demagnetize and clean the metal chips entrained in the polishing sand, so that the polishing sand can be synchronously processed during the polishing process, improving work efficiency; 2. Through the meshing effect between the bevel gear and the rotating gear, one end of the push rod is forced to reciprocally squeeze air inside the connecting cylinder, and through the pressure effect, the connecting frame is forced to slide along the inside of the sleeve, so as to scrape the metal chips adsorbed on the surface of the degaussing needle and ensure the working effect of the degaussing needle. Brief Description of the Drawings

[0015] Figure 1 is the three-dimensional structural schematic diagram of the present invention; Figure 2 is the sectional structural schematic diagram of the top cover of the present invention; Figure 3 is the sectional structural schematic diagram of the fixing frame of the present invention; Figure 4 is the sectional structural schematic diagram of the processing box of the present invention; Figure 5 is the sectional structural schematic diagram of the aggregate channel of the present invention; Figure 6 is the sectional structural schematic diagram of the push rod of the present invention; Figure 7It is a schematic cross-sectional structure diagram of the rotating column of the present invention; Figure 8 It is a schematic connection structure diagram of the guide teeth of the present invention; Figure 9 It is a schematic cross-sectional structure diagram of the sleeve of the present invention; Figure 10 It is a schematic cross-sectional structure diagram of the degaussing roller of the present invention; Figure 11 It is of the present invention Figure 10 Schematic diagram of the partial enlarged structure at A in; Figure 12 It is a schematic connection structure diagram of the air guide ring of the present invention; Figure 13 It is a schematic cross-sectional structure diagram of the sleeve pipe of the present invention.

[0016] In the figure: 1. Processing box; 2. Top cover; 3. Motor; 4. Picking teeth; 5. Sandblasting mechanism; 501. Sandblasting gun; 502. Feeding pipe; 6. Crushing mechanism; 601. Crushing roller; 602. Connecting column; 7. Degaussing mechanism; 701. Degaussing roller; 702. Degaussing needle; 8. Scraping mechanism; 801. Scraping ring; 802. Connecting frame; 803. Sleeve pipe; 9. Aggregate channel; 10. Distributor; 11. Connecting teeth; 12. Rotating column; 13. Guide teeth; 14. Guide wheel; 15. Runner; 16. Connecting wheel; 17. Duct; 18. Connecting block; 19. Sleeve; 20. Bevel gear; 21. Rotating tooth; 22. Push rod; 23. Connecting cylinder; 24. Air guide ring; 25. Air hole; 26. Opening; 27. Fixed frame; 28. Fixed shaft; 29. Spring block; 30. Return spring. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0019] Refer to Figures 1-13, a polishing device for mechanical part production, including a processing box 1. A top cover 2 is clamped on the top of the processing box 1. A motor 3 is fixedly connected to one side of the top cover 2. A dial tooth 4 is rotatably connected inside the top cover 2. The bottom of the dial tooth 4 penetrates to the bottom of the top cover 2. A fixing frame 27 is fixedly connected to the bottom of the top cover 2. A fixing shaft 28 is fixedly connected to one side of the fixing frame 27. A spring block 29 is arranged inside the other side of the fixing frame 27. The other end of the fixing shaft 28 is clamped with the fixing frame 27 through the spring block 29. It also includes: A sandblasting mechanism 5 is arranged inside the processing box 1. The sandblasting mechanism 5 is used for sandblasting and polishing gear parts. The sandblasting mechanism 5 includes four sandblasting guns 501 and four feeding pipes 502. The four sandblasting guns 501 are symmetrically arranged in pairs inside the processing box 1. The four feeding pipes 502 are respectively connected to the bottoms of the four sandblasting guns 501. The other ends of the feeding pipes 502 are connected to a distributor 10. The distributor 10 is fixedly connected inside the processing box 1. An aggregate channel 9 is opened inside the processing box 1. The bottom of the aggregate channel 9 is connected to the top of the distributor 10.

[0020] Among them, the gear part to be polished is fixed to the bottom of the top cover 2 through the fixing shaft 28 and is inside the processing box 1. The motor 3 drives the dial tooth 4 to rotate, so as to drive the gear part to be polished to rotate. And the four sandblasting guns 501 spray polishing sand towards the gear part to complete the corresponding polishing work. And the polishing sand after participating in the polishing will fall through the aggregate channel 9 to the distributor 10 and be transported to the four sandblasting guns 501 again for sandblasting and polishing work again.

[0021] The crushing mechanism 6 is rotatably connected to the inside of the processing box 1. The crushing mechanism 6 is used for crushing the agglomerated polishing sand after use. The crushing mechanism 6 includes two crushing rollers 601 and two connecting columns 602. The two crushing rollers 601 are symmetrically and rotatably connected to both sides inside the aggregate channel 9, and the two crushing rollers 601 rotate in a staggered manner. The two connecting columns 602 are respectively fixedly connected to one end of the two crushing rollers 601. The connecting columns 602 are rotatably connected to the inside of the processing box 1. Connecting teeth 11 are fixedly sleeved on the surfaces of the two connecting columns 602, and the two connecting teeth 11 are meshed with each other. The demagnetization mechanism 7 is rotatably connected to the inside of the processing box 1, and the demagnetization mechanism 7 is located below the crushing mechanism 6. The demagnetization mechanism 7 is used for demagnetizing the used polishing sand. The demagnetization mechanism 7 includes two demagnetization rollers 701 and a plurality of demagnetization needles 702. The two demagnetization rollers 701 are symmetrically and rotatably connected to the inside of the processing box 1, and the two demagnetization rollers 701 are symmetrically and rotatably connected to both sides inside the aggregate channel 9. The plurality of demagnetization needles 702 are uniformly fixedly connected to the surfaces of the demagnetization rollers 701. The two demagnetization rollers 701 are located below the two crushing rollers 601. One end of each of the two demagnetization rollers 701 is respectively fixedly connected with two rotating columns 12. Guide teeth 13 are fixedly sleeved on the surfaces of the rotating columns 12, and the two guide teeth 13 are meshed with each other. A guide wheel 14 is fixedly connected to the surface of one of the rotating columns 12. The output end of the motor 3 is fixedly connected with a rotating wheel 15. The rotating wheel 15 is in transmission connection with the guide wheel 14 through a belt. Connecting wheels 16 are fixedly sleeved on the surfaces of one of the connecting columns 602 and the other rotating column 12, and the two connecting wheels 16 are in transmission connection through a belt.

[0022] Among them, when the used polishing sand falls through the aggregate channel 9, it will first enter between the two crushing rollers 601. The motor 3 drives the guide wheel 14 to rotate through the rotating wheel 15. At this time, the two rotating columns 12 can achieve synchronous opposite rotation through the meshing effect between the guide teeth 13. In this way, one of the connecting columns 602 is driven to rotate through the connecting wheel 16 on the surface of the rotating column 12. Through the meshing effect between the two connecting teeth 11, the two connecting columns 602 can be driven to achieve synchronous opposite rotation, that is, at this time, the two crushing rollers 601 rotate in opposite directions to squeeze and crush the polishing sand located between the two crushing rollers 601. The crushed polishing sand continues to fall and enters between the two demagnetization rollers 701. Since the two demagnetization rollers 701 rotate synchronously in opposite directions through the two rotating columns 12, the falling polishing sand can be demagnetized by the demagnetization needles 702, and the metal debris wrapped inside can be cleaned to ensure the cleanliness of the polishing sand and its working effect. Scraping mechanism 8 is disposed inside the degaussing mechanism 7. The scraping mechanism 8 is used to remove metal chips on the surface of the degaussing mechanism 7. The scraping mechanism 8 includes a plurality of scraping rings 801, a plurality of connecting frames 802 and a plurality of sleeves 803. The scraping rings 801 are slidably connected inside the degaussing roller 701, and the scraping rings 801 are slidably connected to the degaussing needles 702. The connecting frames 802 are fixedly connected to one side of the scraping rings 801, and the connecting frames 802 are located inside the degaussing roller 701. A plurality of sleeves 803 are evenly arranged inside the degaussing roller 701. The connecting frames 802 are slidably connected inside the sleeves 803. The other end of the sleeve 803 is communicated with a conduit 17. A connecting block 18 is arranged between two adjacent sleeves 803. Both sides of the connecting block 18 are communicated with the conduit 17. The other end of the degaussing roller 701 is fixedly connected with a sleeve 19. One end of the sleeve 19 far away from the degaussing roller 701 is fixedly connected with a bevel gear 20. One side of the bevel gear 20 is engaged with a rotating gear 21. Above the rotating gear 21 is hinged with a push rod 22. The push rod 22 is slidably connected with the sleeve 19. Inside the degaussing roller 701 is rotatably connected with a connecting cylinder 23. One end of the push rod 22 far away from the rotating gear 21 is slidably connected inside the connecting cylinder 23. The surface of the connecting cylinder 23 is evenly rotatably connected with a plurality of air guide rings 24. A plurality of connecting blocks 18 are fixedly connected to the surface of the air guide ring 24 in a circular pattern. The surface of the connecting block 18 is provided with air holes 25. The other end of the air hole 25 penetrates through the inner wall of the air guide ring 24. An opening 26 is arranged on the surface of the connecting cylinder 23 and inside the air guide ring 24. A plurality of air holes 25 are intermittently communicated with the opening 26. On both sides inside the sleeve 803 are symmetrically fixedly connected with return springs 30. The other end of the return spring 30 is fixedly connected with the connecting frame 802.

[0023] Among them, during the continuous rotation of the degaussing roller 701, the bevel gear 20 can drive the rotating gear 21 to rotate, forcing the push rod 22 to slide back and forth in the sleeve 19 and the connecting cylinder 23. During the process of the push rod 22 sliding into the connecting cylinder 23, the air inside the connecting cylinder 23 will be compressed. At this time, the air pressure inside the connecting cylinder 23 increases, and air is injected into the air holes 25 communicated with it through the opening 26. At this time, the air flow will push the connecting frame 802 towards the outside of the sleeve 803, and then drive the scraping ring 801 to scrape the surface of the degaussing needle 702, removing the adsorbed metal chips. Since the connecting cylinder 23 and the degaussing roller 701 are in a relative rotating state, the air guide ring 24 will drive different connecting blocks 18 to rotate to the opening position, that is, communicate with different air holes 25 through different openings, forcing different scraping rings 801 to scrape different degaussing needles 702, and the return spring 30 pulls the scraping ring 801 to reset, which can ensure the degaussing effect on the polishing sand.

[0024] The specific working principle and usage method of the present invention will be explained in detail below: When in use, in the first step, the gear part to be polished is fixed at the bottom of the top cover 2 through the fixed shaft 28 and is inside the processing box 1. The motor 3 drives the tooth-pulling member 4 to rotate, thereby driving the gear part to be polished to rotate. Four sandblasting guns 501 spray polishing sand towards the gear part to complete the corresponding polishing work. The polishing sand after polishing will fall through the aggregate channel 9 to the distributor 10 and is then conveyed to the four sandblasting guns 501 again for sandblasting and polishing work again; In the second step, during the process of the used polishing sand falling through the aggregate channel 9, it will first enter between the two crushing rollers 601. The motor 3 drives the guide wheel 14 to rotate through the runner 15. At this time, the two rotating columns 12 can achieve synchronous opposite rotation through the meshing effect between the guide teeth 13. Thereby, one connecting column 602 is driven to rotate through the connecting wheel 16 on the surface of the rotating column 12. Through the meshing effect between the two connecting teeth 11, the two connecting columns 602 can be driven to achieve synchronous opposite rotation effect, that is, at this time, the two crushing rollers 601 rotate in opposite directions to squeeze and crush the polishing sand located between the two crushing rollers 601. The crushed polishing sand continues to fall and enters between the two demagnetizing rollers 701. Since the two demagnetizing rollers 701 rotate synchronously in opposite directions through the two rotating columns 12, the demagnetizing needles 702 can demagnetize the falling polishing sand and clean the metal debris wrapped inside; In the third step, during the continuous rotation of the demagnetizing roller 701, the rotating tooth 21 can be driven to rotate through the bevel gear 20, forcing the push rod 22 to slide reciprocally in the sleeve 19 and the connecting cylinder 23. During the process of the push rod 22 sliding towards the inside of the connecting cylinder 23, the air inside the connecting cylinder 23 will be squeezed. At this time, the air pressure inside the connecting cylinder 23 increases, and air is injected into the air hole 25 communicated with it through the opening 26. At this time, the air flow will push the connecting frame 802 towards the outside of the sleeve 803, that is, drive the scraping ring 801 to scrape the surface of the demagnetizing needle 702 to remove the metal chips adsorbed on it. Since the connecting cylinder 23 and the demagnetizing roller 701 are in a relatively rotating state, the air guide ring 24 will drive different connecting blocks 18 to rotate to the opening, that is, communicate with different air holes 25 through different openings, forcing different scraping rings 801 to scrape different demagnetizing needles 702, and the scraping ring 801 is pulled back to its original position through the reset effect of the reset spring 30.

[0025] Further explanation, the above fixed connection, unless otherwise clearly specified and limited, should be understood in a broad sense. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.

[0026] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A polishing device for the production of mechanical parts, including a processing box, characterized in that: The top of the processing box is clamped with a top cover, one side of the top cover is fixedly connected to a motor, the inside of the top cover is rotatably connected to a shifting tooth, and the bottom of the shifting tooth penetrates to the bottom of the top cover, and also includes: A sandblasting mechanism, which is arranged inside the processing box and is used to perform sandblasting and polishing on the gear parts; A crushing mechanism, the crushing mechanism is rotatably connected to the inside of the processing box, and the crushing mechanism is used to crush the polishing sand that is agglomerated after use; A demagnetizing mechanism, which is rotatably connected to the interior of the processing box and is located below the crushing mechanism, and is used to demagnetize the polishing sand after use; And a scraping mechanism, wherein the scraping mechanism is arranged inside the demagnetization mechanism and is used to remove metal chips on the surface of the demagnetization mechanism.

2. A polishing device for manufacturing mechanical parts according to claim 1, characterized in that: The sandblasting mechanism includes four sandblasting guns and four feed pipes. The four sandblasting guns are symmetrically arranged in pairs inside the processing box. The four feed pipes are respectively connected to the bottom of the four sandblasting guns. The other end of the feed pipe is connected to a distributor. The distributor is fixedly connected to the inside of the processing box. A collection channel is opened inside the processing box. The bottom of the collection channel is connected to the top of the distributor.

3. A polishing device for manufacturing mechanical parts according to claim 2, characterized in that: The crushing mechanism includes two crushing rollers and two connecting columns. The two crushing rollers are symmetrically connected to the two sides of the aggregate channel and rotate alternately with each other. The two connecting columns are respectively fixedly connected to one end of the two crushing rollers. The connecting columns are rotatably connected to the inside of the processing box. The surfaces of the two connecting columns are fixedly sleeved with connecting teeth, and the two connecting teeth are meshed with each other.

4. A polishing device for producing mechanical parts according to claim 3, characterized in that: The demagnetization mechanism includes two demagnetization rollers and a plurality of demagnetization needles. The two demagnetization rollers are symmetrically rotatably connected to the inside of the processing box, and the two demagnetization rollers are symmetrically rotatably connected to the two sides of the inside of the aggregate channel. The plurality of demagnetization needles are evenly fixedly connected to the surfaces of the demagnetization rollers. The two demagnetization rollers are located below the two crushing rollers. One end of the two demagnetization rollers is respectively fixedly connected to two rotating columns, and the surfaces of the rotating columns are fixedly sleeved with guide teeth, and the two guide teeth are meshed with each other. The surface of one of the rotating columns is fixedly connected to a guide wheel, and the output end of the motor is fixedly connected to a rotating wheel, which is connected to the guide wheel through a belt transmission. The surfaces of one connecting column and the other rotating column are fixedly sleeved with connecting wheels, and the two connecting wheels are connected through a belt transmission.

5. A polishing device for the production of mechanical parts according to claim 1, characterized in that: The scraping mechanism includes a plurality of scraping rings, a plurality of connecting frames and a plurality of sleeves. The scraping ring is slidably connected to the inside of the demagnetization roller, and the scraping ring is slidably connected to the demagnetization needle. The connecting frame is fixedly connected to one side of the scraping ring, and the connecting frame is located inside the demagnetization roller. A plurality of sleeves are evenly arranged inside the demagnetization roller. The connecting frame is slidably connected to the inside of the sleeve. The other end of the sleeve is connected to a conduit. A connecting block is arranged between two adjacent sleeves, and both sides of the connecting block are connected to the conduit.

6. A polishing device for the production of mechanical parts according to claim 5, characterized in that: The other end of the degaussing roller is fixedly connected with a sleeve, one end of the sleeve away from the degaussing roller is fixedly connected with a bevel gear, a rotating gear is meshed with one side of the bevel gear, a push rod is hinged above the rotating gear, the push rod is slidably connected with the sleeve, a connecting cylinder is rotatably connected inside the degaussing roller, one end of the push rod away from the rotating gear is slidably connected with the inside of the connecting cylinder, a plurality of air guide rings are evenly rotatably connected to the surface of the connecting cylinder, a plurality of connecting blocks are fixedly connected to the surface of the air guide ring in a circumferential manner, air holes are formed in the surface of the connecting block, the other end of the air hole penetrates through the inner wall of the air guide ring, an opening is formed in the surface of the connecting cylinder and inside the air guide ring, and a plurality of air holes are intermittently communicated with the opening.

7. A polishing device for the production of mechanical parts according to claim 1, characterized in that: A fixing frame is fixedly connected to the bottom of the top cover, a fixing shaft is fixedly connected to one side of the fixing frame, a spring block is arranged inside the other side of the fixing frame, and the other end of the fixing shaft is clamped with the fixing frame through the spring block.

8. A polishing device for the production of mechanical parts according to claim 6, characterized in that: Reset springs are symmetrically and fixedly connected to both sides inside the sleeve, and the other ends of the reset springs are fixedly connected to the connecting frame.

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