Environment-friendly metal polishing device

Abstract

The present application relates to the technical field of metal workpiece processing, in particular to an environment-friendly metal polishing device, which comprises a polishing assembly, a dust suction assembly and a moving support. The polishing assembly comprises two rotating roller shafts, and a polishing wheel is arranged on the end head of one end of each rotating roller shaft. The dust suction assembly comprises an expanded suction cover and a suction pipe. The suction pipe is sequentially divided into a magnetic dust storage area, a negative pressure area and a supporting part along its axial direction. A detachable dust collection net bag is arranged in the magnetic dust storage area. The dust collection net bag is unfolded along the horizontal direction to form multiple mesh pockets. A plurality of annular magnets are arranged in the magnetic dust storage area. A negative pressure fan is arranged in the negative pressure area. A driving mechanism is arranged on one side of the moving support. The device is used for polishing the inner wall of a metal short pipe and collecting the generated metal dust in real time during the polishing process, so as to ensure that no dust is scattered out during the polishing process, improve the cleanliness of the production environment, and reduce the harm of dust to the operator's body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal workpiece processing, in particular to an environment-friendly metal polishing device. BACKGROUND

[0002] Polishing refers to a processing method for reducing the surface roughness of a workpiece to obtain a bright and smooth surface by using mechanical, chemical or electrochemical action. It is a modification processing of the workpiece surface by using a polishing tool and abrasive particles or other polishing media.

[0003] Polishing cannot improve the dimensional accuracy or geometric shape accuracy of the workpiece, but aims to obtain a smooth surface or mirror gloss, and sometimes also to eliminate gloss. A polishing wheel is usually used as a polishing tool. The polishing wheel is generally made of multiple layers of canvas, felt or leather, and is clamped on both sides by metal plates. The rim is coated with a polishing agent made of uniformly mixed fine abrasive and oil.

[0004] During polishing, the high-speed rotating polishing wheel is pressed against the workpiece, so that the abrasive produces rolling and micro-cutting on the workpiece surface, thereby obtaining a bright processing surface, and the surface roughness can reach Ra 0.63-0.01 microns; when using non-oil-based matt polishing agent, the bright surface can be mattened to improve the appearance.

[0005] In the process of polishing metal workpieces, especially metal pipe fittings, due to the special structure of the pipe fittings, the generated debris and dust are easy to accumulate in the pipe fittings when polishing the inner wall of the pipe fittings. The previously generated debris will fall again between the polishing wheel and the inner wall of the pipe fittings, thereby causing scratches on the polished surface. The traditional method often blows air into the pipe fittings to blow out the debris, but this method blows the debris and dust into the polishing environment, which reduces the cleanliness of the environment and also harms the health of the operators;

[0006] Compared with metal long pipes, metal short pipes have shorter polishing time and faster rhythm. If the traditional method is used, a large amount of dust and debris will remain in the polishing environment, so it is necessary to provide an environment-friendly metal polishing device to solve the above problems. SUMMARY

[0007] Therefore, it is necessary to provide an environment-friendly metal polishing device to solve the above problems.

[0008] To address the problems of existing technologies, the present invention adopts the following technical solution: an environmentally friendly metal polishing device, comprising a grinding component, a dust extraction component, and a movable support. The movable support is used to drive the dust extraction component and the grinding component to move horizontally toward a short metal tube. The grinding component includes two horizontally oriented rotating rollers, each with a polishing wheel at one end for grinding the inner wall of the short metal tube. The dust extraction component includes a flared suction hood and a horizontally oriented suction tube. The flared suction hood is detachably installed at one end of the suction tube. The two rotating rollers rotate symmetrically. The two polishing wheels are located in front of the flared adsorption hood and are mounted on both sides of the adsorption tube. The adsorption tube is divided into a magnetic dust storage area, a negative pressure area and a support part along its axial direction. The magnetic dust storage area is equipped with a detachable dust collection net bag. The dust collection net bag has a foldable structure. After the dust collection net bag is unfolded in the horizontal direction, it becomes a multi-section net bag. The magnetic dust storage area is equipped with several ring magnets. Each ring magnet is fitted onto a corresponding section of the multi-section net bag. The negative pressure area is equipped with a negative pressure fan. The support part is mounted on a movable bracket. One side of the movable bracket is equipped with a drive mechanism for driving the negative pressure fan to rotate synchronously with the two rotating roller shafts.

[0009] Furthermore, the adsorption tube is detachably divided into a connecting tube, a central circular tube, and a conical tube. The conical tube is detachably divided into a first conical tube and a second conical tube. The second conical tube is horizontally mounted on the upper end of the movable support. The second conical tube has several oblique exhaust ports evenly distributed along its circumference. The large-diameter end of the first conical tube is coaxially fixed to the large-diameter end of the second conical tube. One end of the central circular tube is coaxially fixed to the small-diameter end of the first conical tube. One end of the connecting tube is coaxially fixed to the other end of the central circular tube. The other end of the connecting tube is formed with a threaded connector. The central circular tube, the first conical tube, and the second conical tube are respectively the magnetic dust storage area, the negative pressure area, and the support part in the adsorption tube. The multi-section mesh bag is detachably located inside the central circular tube. The negative pressure fan is located inside the first conical tube. The small-diameter end of the flared adsorption hood is screwed onto the threaded connector.

[0010] Furthermore, the multi-section net bag includes a flat net bag, a first conical connecting nozzle, several annular net bags, and several connecting rings. Each pair of adjacent annular net bags is connected by a connecting ring. The large-diameter end of the first conical connecting nozzle is connected to one of the annular net bags via a connecting ring. The flat net bag is connected to one of the annular net bags via a connecting ring. The first conical connecting nozzle is located near the connecting tube, and the flat net bag is located near the first conical tube. A second conical connecting nozzle is coaxially fixed inside the middle circular tube near the connecting tube. The large-diameter end of the connector faces the connecting tube. The small-diameter end of the No. 2 conical connector has a rectangular slot formed on it. The small-diameter end of the No. 1 conical connector has a rectangular insert that is inserted upward into the rectangular slot. Several annular slots for the connecting ring to engage are formed inside the central tube. Between each pair of adjacent annular slots, there is an annular groove for the corresponding annular magnet to engage. A strip-shaped notch is opened on the lower half of the central tube. The length of the strip-shaped notch is the same as the length of the multi-section mesh bag. A detachable arc-shaped cover plate is installed on the strip-shaped notch.

[0011] Furthermore, a perforated circular plate is fixed between the No. 1 and No. 2 cone tubes. The perforated circular plate is coaxial with the No. 1 cone tube, and the center of the perforated circular plate is solid. The negative pressure fan is coaxially connected to the center of the perforated circular plate. The No. 2 cone tube is equipped with a drive shaft that is coaxially fixed to the negative pressure fan. The negative pressure fan is located on the side of the perforated circular plate closer to the No. 1 cone tube, and the drive shaft is located on the side of the perforated circular plate closer to the No. 2 cone tube. One end of the drive shaft is rotatably connected to the upper end of the movable bracket. The drive mechanism is used to drive the drive shaft and the two rotating roller shafts to rotate synchronously.

[0012] Furthermore, horizontal support plates are formed on both sides of the No. 2 conical tube. Each horizontal support plate is provided with a columnar sleeve whose axis is parallel to the No. 2 conical tube. Each rotating roller shaft is rotatably installed in the corresponding columnar sleeve. One end of each rotating roller shaft extends toward the movable support, and the other end of each rotating roller shaft extends toward the flared adsorption cover. The flared adsorption cover has two through holes that are respectively opposite the two rotating roller shafts. Each through hole is formed with a guide sleeve that is coaxial with the corresponding rotating roller shaft. Each polishing wheel is coaxially connected to the corresponding rotating roller shaft through a connecting shaft inserted into the guide sleeve.

[0013] Furthermore, the drive mechanism includes a motor, a first synchronous pulley group, a second synchronous pulley group, and a third synchronous pulley group. The motor is horizontally fixed on the side of the movable bracket opposite to the second tapered tube. The first synchronous pulley group includes a first synchronous belt and two first synchronous pulleys. The two first synchronous pulleys are coaxially fixed to the drive shaft and one of the rotating roller shafts, respectively. The first synchronous belt drives the two first synchronous pulleys. The second synchronous pulley group includes a second synchronous belt and two second synchronous pulleys. The two second synchronous pulleys are coaxially fixed to the drive shaft and the other rotating roller shaft, respectively. The second synchronous belt drives the two second synchronous pulleys. The third synchronous pulley group includes a third synchronous belt and two third synchronous pulleys. The two third synchronous pulleys are coaxially fixed to the output end of the motor and the drive shaft, respectively. The third synchronous belt drives the two third synchronous pulleys.

[0014] Furthermore, each columnar sleeve is fixedly connected to a strip-shaped movable seat at its bottom. The length direction of the strip-shaped movable seat is consistent with the axial direction of the columnar sleeve. The bottom of each strip-shaped movable seat is in contact with the top of the corresponding horizontal support plate. Several vertically downward limiting pins are formed on the bottom of the strip-shaped movable seat and are evenly distributed along the length direction of the horizontal support plate. Several strip-shaped grooves for the limiting pins to slide laterally are opened on the horizontal support plate. The length direction of each strip-shaped groove is perpendicular to the length direction of the strip-shaped movable seat. The lower end of each limiting pin passes downward through the corresponding strip-shaped groove, and a fastening nut is fitted on the lower end of each limiting pin. Each fastening nut is threaded to the lower end of the corresponding limiting pin. On the side of the moving bracket where the motor is located, a No. 1 tensioner and a No. 2 tensioner are fixedly installed. The No. 1 tensioner tightens the No. 1 synchronous belt downward, and the No. 2 tensioner tightens the No. 2 synchronous belt downward.

[0015] Furthermore, a support is fixedly connected to the bottom of the second cone tube, and a triangular bracket is fixedly connected to the movable bracket, with the support fixedly located on the top of the triangular bracket.

[0016] The beneficial effects of this invention compared to the prior art are:

[0017] Firstly, this device is used to grind the inner wall of short metal tubes and collect the metal dust generated during the grinding process in real time, thereby ensuring that no dust will be scattered during the grinding process, improving the cleanliness of the production environment, and reducing the harm of dust to the operator's body.

[0018] Secondly, the device uses a detachable dust collection bag to collect dust in real time, making it easy to remove the collected dust later.

[0019] Thirdly, the magnetic dust storage area on the adsorption tube of this device prevents the metal dust falling into the dust collection bag from concentrating on the end of the dust collection bag near the negative pressure fan. This further makes the distribution of metal dust in the dust collection bag more uniform, preventing the metal dust from concentrating and blocking the end of the dust collection bag near the negative pressure fan. As a result, the negative pressure airflow generated by the negative pressure fan is cut off, and the flared adsorption hood no longer generates negative pressure adsorption force. Ultimately, this prevents the metal dust generated later from being sucked into the adsorption tube. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 2 ;

[0022] Figure 3 This is a top view of an embodiment;

[0023] Figure 4 yes Figure 3 Sectional view along line AA;

[0024] Figure 5 yes Figure 4 A magnified view of the area indicated by A1 in the diagram;

[0025] Figure 6 yes Figure 4 The enlarged view of the area indicated by A2 in the diagram;

[0026] Figure 7 yes Figure 3 Sectional view along line BB;

[0027] Figure 8 yes Figure 7 The enlarged view of the area indicated in A3;

[0028] Figure 9 yes Figure 7 The enlarged view shown in section A4;

[0029] Figure 10 This is an exploded perspective view of the dust extraction component in the embodiment;

[0030] Figure 11 This is a three-dimensional structural breakdown of the central circular tube in the embodiment. Figure 1 ;

[0031] Figure 12 This is a three-dimensional structural breakdown of the central circular tube in the embodiment. Figure 2 .

[0032] The diagram is labeled as follows: 1. Movable support; 2. Rotating roller; 3. Polishing wheel; 4. Flared suction hood; 5. Suction tube; 6. Multi-section mesh bag; 7. Ring magnet; 8. Negative pressure fan; 9. Connecting tube; 10. Central round tube; 11. Conical tube; 12. Conical tube No. 1; 13. Conical tube No. 2; 14. Angled exhaust port; 15. Threaded connector; 16. Flat mesh bag; 17. Conical connector No. 1; 18. Ring mesh bag; 19. Connecting ring; 20. Conical connector No. 2; 21. Rectangular slot; 22. Rectangular insert; 23. Ring groove; 24. Ring insert. 25. Strip-shaped notch; 26. Arc-shaped cover plate; 27. Hollowed-out circular plate; 28. Drive shaft; 29. ​​Horizontal support plate; 30. Columnar tube sleeve; 31. Perforation; 32. Guide sleeve; 33. Connecting shaft; 34. Motor; 35. No. 1 synchronous belt; 36. No. 1 synchronous pulley; 37. No. 2 synchronous belt; 38. No. 2 synchronous pulley; 39. No. 3 synchronous belt; 40. No. 3 synchronous pulley; 41. Strip-shaped moving seat; 42. Limiting pin; 43. Strip-shaped slide groove; 44. Fastening nut; 45. No. 1 tensioner; 46. No. 2 tensioner; 47. Support; 48. Triangular bracket. Detailed Implementation

[0033] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0034] refer to Figures 1 to 12 An environmentally friendly metal polishing device is shown, comprising a grinding component, a dust extraction component, and a movable support 1. The movable support 1 is used to drive the dust extraction component and the grinding component to move horizontally toward a short metal tube. The grinding component includes two horizontally oriented rotating rollers 2, each with a polishing wheel 3 at one end for grinding the inner wall of the short metal tube. The dust extraction component includes a flared suction hood 4 and a horizontally oriented suction tube 5. The flared suction hood 4 is detachably installed at one end of the suction tube 5. The two rotating rollers 2 are symmetrically arranged on both sides of the suction tube 5. Two polishing wheels 3 are located in front of the flared adsorption hood 4. The adsorption tube 5 is divided into a magnetic dust storage area, a negative pressure area and a support part along its axial direction. The magnetic dust storage area is equipped with a detachable dust collection net bag. The dust collection net bag has a foldable structure. After the dust collection net bag is unfolded in the horizontal direction, it becomes a multi-section net bag 6. The magnetic dust storage area is equipped with several ring magnets 7. Each ring magnet 7 is fitted onto a corresponding section of the multi-section net bag 6. The negative pressure area is equipped with a negative pressure fan 8. The support part is mounted on a movable bracket 1. One side of the movable bracket 1 is equipped with a drive mechanism for driving the negative pressure fan 8 to rotate synchronously with the two rotating roller shafts 2.

[0035] This device is used to grind the inner wall of short metal pipes and collect the metal dust generated during the grinding process in real time, thereby ensuring that no dust is scattered during the grinding process, improving the cleanliness of the production environment, and reducing the harm of dust to the operator's body.

[0036] The movable support 1 is equipped with a lead screw slide (not shown in the figure) below it. The lead screw slide drives the movable support 1 to move horizontally. One end of the metal short tube can be fixed by a clamping device, which can be a three-jaw chuck (not shown in the figure). The three-jaw chuck clamps the outer wall of one end of the metal short tube. When the inner wall of the metal short tube is polished by this device, the three-jaw chuck clamps the metal short tube and rotates. When the two polishing wheels 3 of this device rotate, the inner wall of the metal short tube can be fully polished.

[0037] During the polishing process, the negative pressure fan 8 and two rotating rollers 2 are first driven by the drive mechanism to rotate. Then, the polishing assembly and dust collection assembly are moved horizontally toward the metal short tube to be polished by the moving bracket 1. During this process, the adsorption tube 5 and the two rotating rollers 2 continuously extend into the rotating metal short tube. At this time, the inner wall of the metal short tube is polished by two polishing wheels 3, and the rotation direction of each polishing wheel 3 is opposite to the rotation direction of the metal short tube. The metal dust generated during polishing is immediately sucked into the flared adsorption hood 4 at the rear. After passing through the flared adsorption hood 4, the metal dust passes through the magnetic dust storage area of ​​the adsorption tube 5. When passing through the magnetic dust storage area, the metal dust falls into the dust collection bag. As the metal dust flies towards the negative pressure fan 8, it passes through several annular magnets 7. At this time, the metal dust is attracted to the corresponding annular magnets 7, so that the metal dust falling into the dust collection bag will not concentrate on the end of the dust collection bag near the negative pressure fan 8. This further makes the distribution of metal dust in the dust collection bag more uniform, preventing the metal dust from concentrating and blocking the end of the dust collection bag near the negative pressure fan 8. This causes the negative pressure airflow generated by the negative pressure fan 8 to be cut off, and the flared adsorption hood 4 no longer generates negative pressure adsorption force. Ultimately, the metal dust generated later will no longer be sucked into the adsorption tube 5.

[0038] To demonstrate the specific structure of the adsorption tube 5, the following features were provided:

[0039] The adsorption tube 5 is detachably divided into a connecting tube 9, a central circular tube 10, and a conical tube 11. The conical tube 11 is detachably divided into a first conical tube 12 and a second conical tube 13. The second conical tube 13 is horizontally mounted on the upper end of the movable support 1. The second conical tube 13 has several oblique exhaust ports 14 evenly distributed along its circumference. The large-diameter end of the first conical tube 12 is coaxially fixed to the large-diameter end of the second conical tube 13. One end of the central circular tube 10 is connected to the first conical tube 12. The small-diameter end is coaxially fixed, one end of the connecting tube 9 is coaxially fixed to the other end of the middle round tube 10, and the other end of the connecting tube 9 is formed with a threaded connector 15. The middle round tube 10, the first cone tube 12 and the second cone tube 13 are respectively the magnetic dust storage area, the negative pressure area and the support part in the above-mentioned adsorption tube 5. The multi-section net bag 6 is detachably set in the middle round tube 10, the negative pressure fan 8 is set in the first cone tube 12, and the small-diameter end of the flared adsorption cover 4 is screwed onto the threaded connector 15.

[0040] like Figure 4 The diagram shows the structure after the adsorption tube 5 is assembled. The large-diameter end of the first cone tube 12 is used to provide sufficient installation area for the negative pressure fan 8. When the negative pressure fan 8 rotates, the gas in front of the flared adsorption hood 4 will pass through the flared adsorption hood 4, the connecting pipe 9, the middle circular pipe 10, the first cone tube 12 and the second cone tube 13 in sequence. As the gas continues to pass through the above areas, it will form a negative pressure airflow. The negative pressure airflow will drive the metal dust into the multi-section mesh bag 6 inside the middle circular pipe 10. The negative pressure airflow will eventually be discharged through several oblique exhaust ports 14 set on the second cone tube 13.

[0041] The No. 1 cone tube 12 and the No. 2 cone tube 13 can be connected by bolts, and the connecting tube 9, the middle round tube 10 and the No. 1 cone tube 12 can also be connected by bolts.

[0042] To demonstrate how the multi-section net bag 6 is detachably installed inside the central circular tube 10, the following features are provided:

[0043] The multi-section net bag 6 includes a flat net bag 16, a first conical connecting nozzle 17, several annular net bags 18, and several connecting rings 19. Each pair of adjacent annular net bags 18 is connected by a connecting ring 19. The large-diameter end of the first conical connecting nozzle 17 is connected to one of the annular net bags 18 via a connecting ring 19. The flat net bag 16 is connected to one of the annular net bags 18 via a connecting ring 19. The first conical connecting nozzle 17 is located near the connecting tube 9, and the flat net bag 16 is located near the first conical tube 12. A second conical connecting nozzle 20 is coaxially fixed inside the middle circular tube 10 near the connecting tube 9. The large-diameter end of the nozzle 20 faces the connecting tube 9. A rectangular slot 21 is formed on the small-diameter end of the second conical connecting nozzle 20. A rectangular insert 22 is formed on the small-diameter end of the first conical connecting nozzle 17, which is inserted upward into the rectangular slot 21. Several annular slots 23 for the connecting ring 19 to be engaged are formed inside the middle round tube 10. An annular groove 24 for the corresponding annular magnet 7 to be engaged is formed between each two adjacent annular slots 23. A strip-shaped notch 25 is opened on the lower half of the middle round tube 10. The length of the strip-shaped notch 25 is the same as the length of the multi-section net bag 6. A detachable arc-shaped cover plate 26 is installed on the strip-shaped notch 25.

[0044] After the multiple mesh bags are spliced ​​together, as shown Figure 12 As shown, the arc-shaped cover plate 26 is removed to expose the strip notch 25. Then, the multi-section net bag 6 is installed into the central round tube 10 through the strip notch 25. During this process, the rectangular insert 22 on the second conical connecting nozzle 20 is inserted upward into the rectangular slot 21 on the first conical connecting nozzle 17. Then, each connecting ring 19 is snapped into the corresponding annular slot 23. Finally, the arc-shaped cover plate 26 is installed on the strip notch 25 to achieve the installation of the multi-section net bag 6.

[0045] Since the lower half of the central circular tube 10 is provided with an arc-shaped cover plate 26, when opening the annular slot 23 and the annular groove 24, the lower half of each annular slot 23 and annular groove 24 is opened on the inner wall of the arc-shaped cover plate 26. Therefore, when installing the annular magnet 7, it is necessary to split the annular magnet 7 into two semi-annular magnets, first embedding the upper semi-annular magnet into the annular groove 24 located in the central circular tube 10, and then embedding the lower semi-annular magnet into the annular groove 24 located in the arc-shaped cover plate 26. In the annular groove 24 inside the plate 26, when the arc-shaped cover plate 26 is installed on the strip notch 25, the upper and lower semi-annular magnets face each other and make a circle, covering the corresponding section of the annular net bag 18. Similarly, when the connecting ring 19 is snapped in, the upper half of the connecting ring 19 is first snapped into the annular groove 23 located in the middle round tube 10, and then, during the process of installing the arc-shaped cover plate 26 on the strip notch 25, the lower half of the connecting ring 19 is snapped into the annular groove 23 located in the arc-shaped cover plate 26.

[0046] The arc-shaped cover plate 26 can be connected to the central round tube 10 through several sets of buckles, so that the arc-shaped cover plate 26 can be quickly disassembled and assembled.

[0047] The flat mesh bag 16 and each annular mesh bag 18 are provided with a number of fine holes (not shown in the figure) that allow airflow to pass through but block dust.

[0048] To demonstrate the specific installation method of the negative pressure fan 8 and the drive shaft 28, the following features are specifically designed:

[0049] A perforated circular plate 27 is fixed between the first conical tube 12 and the second conical tube 13. The perforated circular plate 27 is coaxial with the first conical tube 12, and the center of the perforated circular plate 27 is solid. The negative pressure fan 8 is coaxially connected to the center of the perforated circular plate 27. The second conical tube 13 is equipped with a drive shaft 28 that is coaxially fixed with the negative pressure fan 8. The negative pressure fan 8 is located on the side of the perforated circular plate 27 closer to the first conical tube 12, and the drive shaft 28 is located on the side of the perforated circular plate 27 closer to the second conical tube 13. One end of the drive shaft 28 is rotatably connected to the upper end of the movable bracket 1. The drive mechanism is used to drive the drive shaft 28 and the two rotating roller shafts 2 to rotate synchronously.

[0050] The negative pressure fan 8 is installed inside the first cone tube 12 through the hollow circular plate 27. When the drive mechanism is started, the drive shaft 28 and the two rotating roller shafts 2 rotate together. At this time, the negative pressure fan 8 will be driven to rotate by the drive shaft 28. The negative pressure airflow enters from the flared adsorption hood 4 and is discharged from several oblique exhaust ports 14 on the second cone tube 13.

[0051] To demonstrate the mounting method of each rotating roller 2, the following features are specifically designed:

[0052] Both sides of the second tapered tube 13 are formed with horizontal support plates 29. Each horizontal support plate 29 is provided with a columnar tube sleeve 30 whose axis is parallel to the second tapered tube 13. Each rotating roller shaft 2 is rotatably installed in the corresponding columnar tube sleeve 30. One end of each rotating roller shaft 2 extends toward the movable bracket 1, and the other end of each rotating roller shaft 2 extends toward the flared suction cover 4. The flared suction cover 4 has two through holes 31 that are respectively opposite to the two rotating roller shafts 2. Each through hole 31 is formed with a guide sleeve 32 that is coaxial with the corresponding rotating roller shaft 2. Each polishing wheel 3 is coaxially connected to the corresponding rotating roller shaft 2 through a connecting shaft 33 inserted into the guide sleeve 32.

[0053] When the drive mechanism is started, each rotating roller 2 will drive the corresponding polishing wheel 3 to rotate through the connecting shaft 33, and each connecting shaft 33 will rotate within the corresponding guide sleeve 32. Finally, the inner wall of the metal short tube will be polished by the rotation of the polishing wheel 3.

[0054] To demonstrate the specific structure of the drive mechanism, the following features were set:

[0055] The drive mechanism includes a motor 34, a first synchronous pulley group, a second synchronous pulley group, and a third synchronous pulley group. The motor 34 is horizontally fixed on the side of the movable bracket 1 opposite to the second tapered tube 13. The first synchronous pulley group includes a first synchronous belt 35 and two first synchronous pulleys 36. The two first synchronous pulleys 36 are coaxially fixed to the drive shaft 28 and one of the rotating roller shafts 2, respectively. The first synchronous belt 35 drives the two first synchronous pulleys 36. The second synchronous pulley group includes a second synchronous belt 37 and two second synchronous pulleys 38. The two second synchronous pulleys 38 are coaxially fixed to the drive shaft 28 and the other rotating roller shaft 2, respectively. The second synchronous belt 37 drives the two second synchronous pulleys 38. The third synchronous pulley group includes a third synchronous belt 39 and two third synchronous pulleys 40. The two third synchronous pulleys 40 are coaxially fixed to the output end of the motor 34 and the drive shaft 28, respectively. The third synchronous belt 39 drives the two third synchronous pulleys 40.

[0056] The rotation direction of the output end of motor 34 is opposite to the rotation direction of the metal short tube. When motor 34 starts, the output end of motor 34 drives the drive shaft 28 to rotate through the third synchronous wheel set. After the drive shaft 28 rotates, it will drive the two rotating roller shafts 2 to rotate through the first synchronous wheel set and the second synchronous wheel set respectively. Finally, the two rotating roller shafts 2 will drive the two polishing wheels 3 to rotate respectively.

[0057] To enable the grinding components of this device to be used with short metal tubes of larger inner diameter, the following features are specifically designed:

[0058] Each cylindrical sleeve 30 is fixedly connected to a strip-shaped movable seat 41 at its lower part. The length direction of the strip-shaped movable seat 41 is consistent with the axial direction of the cylindrical sleeve 30. The bottom of each strip-shaped movable seat 41 is in contact with the top of the corresponding horizontal support plate 29. Several vertically downward limiting pins 42 are formed on the bottom of the strip-shaped movable seat 41 and are evenly distributed along the length direction of the horizontal support plate 29. Several strip-shaped sliding grooves 43 are provided on the horizontal support plate 29 for the limiting pins 42 to slide laterally. The length of each strip-shaped sliding groove 43 is... In the direction perpendicular to the length of the strip-shaped moving seat 41, the lower end of each limiting pin 42 passes downward through the corresponding strip-shaped slide groove 43, and a fastening nut 44 is fitted on the lower end of each limiting pin 42. Each fastening nut 44 is threadedly connected to the lower end of the corresponding limiting pin 42. On the side of the moving bracket 1 where the motor 34 is located, a first tensioner 45 and a second tensioner 46 are fixedly installed. The first tensioner 45 pulls the first synchronous belt 35 downward, and the second tensioner 46 pulls the second synchronous belt 37 downward.

[0059] The distance between the two rotating rollers 2 can be adjusted by moving the two strip-shaped moving seats 41, thus enabling the grinding assembly to accommodate metal short tubes with larger inner diameters. Before adjusting the distance between the two rotating rollers 2, the current flared suction hood 4 and the two polishing wheels 3 are removed, and then a larger diameter flared suction hood 4 is replaced. Therefore, multiple flared suction hoods 4 can be processed in actual production. Each flared suction hood 4 is only suitable for metal short tubes of the corresponding model, and the distance between the two guide sleeves 32 on each flared suction hood 4 is different, but the polishing wheels 3 used for different metal short tubes are the same. Therefore, given that the outer diameter of the polishing wheel 3 is the same and the inner diameter of the metal short tube is determined, the distance between the two guide sleeves 32 on each flared adsorption cover 4 can be determined. After replacing the flared adsorption cover 4, loosen each fastening nut 44 to make the strip moving seat 41 movable. Then move the strip moving seat 41 to drive the corresponding rotating roller shaft 2 to move laterally until one end of the current rotating roller shaft 2 corresponds to the current guide sleeve 32. After that, tighten each fastening nut 44 and then install the polishing wheel 3 on the corresponding rotating roller shaft 2 through the connecting shaft 33.

[0060] To facilitate the removal of the polishing wheel 3, the connecting shaft 33 can be screwed onto the rotating roller shaft 2;

[0061] After the two rotating rollers 2 are laterally displaced, the first tensioner 45 and the second tensioner 46 ensure that the first synchronous belt 35 and the second synchronous belt 37 are always taut, so that the two rotating rollers 2 after the pitch adjustment can still be driven to rotate by the motor 34 through the first synchronous pulley group and the second synchronous pulley group respectively.

[0062] To demonstrate the specific installation method of the No. 2 cone tube 13, the following features were set:

[0063] A support 47 is fixedly connected to the lower part of the second tapered tube 13, and a triangular bracket 48 is fixedly connected to the movable bracket 1. The support 47 is fixedly installed on the top of the triangular bracket 48.

[0064] The second cone tube 13 is stably supported by the triangular bracket 48 to ensure the stability of the entire device.

[0065] Working principle:

[0066] This device is used to grind the inner wall of short metal tubes and collect the metal dust generated during the grinding process in real time, thereby ensuring that no dust is scattered during the grinding process, making the production line more environmentally friendly and reducing the harm of dust to the operator's health.

[0067] The movable support 1 is equipped with a lead screw slide (not shown in the figure) below it. The lead screw slide drives the movable support 1 to move horizontally. One end of the metal short tube can be fixed by a clamping device, which can be a three-jaw chuck (not shown in the figure). The three-jaw chuck clamps the outer wall of one end of the metal short tube. When the inner wall of the metal short tube is polished by this device, the three-jaw chuck clamps the metal short tube and rotates. When the two polishing wheels 3 of this device rotate, the inner wall of the metal short tube can be fully polished.

[0068] During the polishing process, the negative pressure fan 8 and two rotating rollers 2 are first driven by the drive mechanism to rotate. Then, the polishing assembly and dust collection assembly are moved horizontally toward the metal short tube to be polished by the moving bracket 1. During this process, the adsorption tube 5 and the two rotating rollers 2 continuously extend into the rotating metal short tube. At this time, the inner wall of the metal short tube is polished by two polishing wheels 3, and the rotation direction of each polishing wheel 3 is opposite to the rotation direction of the metal short tube. The metal dust generated during polishing is immediately sucked into the flared adsorption hood 4 at the rear. After passing through the flared adsorption hood 4, the metal dust passes through the magnetic dust storage area of ​​the adsorption tube 5. When passing through the magnetic dust storage area, the metal dust falls into the dust collection bag. As the metal dust flies towards the negative pressure fan 8, it passes through several annular magnets 7. At this time, the metal dust is attracted to the corresponding annular magnets 7, so that the metal dust falling into the dust collection bag will not concentrate on the end of the dust collection bag near the negative pressure fan 8. This further makes the distribution of metal dust in the dust collection bag more uniform, preventing the metal dust from concentrating and blocking the end of the dust collection bag near the negative pressure fan 8. This causes the negative pressure airflow generated by the negative pressure fan 8 to be cut off, and the flared adsorption hood 4 no longer generates negative pressure adsorption force. Ultimately, the metal dust generated later will no longer be sucked into the adsorption tube 5.

[0069] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An environmentally friendly metal polishing device, characterized in that, The assembly includes a grinding component, a dust extraction component, and a moving bracket (1). The moving bracket (1) is used to drive the dust extraction component and the grinding component to move horizontally toward the metal short tube. The grinding component includes two horizontally oriented rotating rollers (2). Each rotating roller (2) has a polishing wheel (3) at one end for grinding the inner wall of the metal short tube. The dust extraction component includes a flared adsorption hood (4) and a horizontally oriented adsorption tube (5). The flared adsorption hood (4) is detachably installed at one end of the adsorption tube (5). The two rotating rollers (2) are symmetrically arranged on both sides of the adsorption tube (5). The two polishing wheels (3) are positioned... In front of the flared adsorption hood (4), the adsorption tube (5) is divided into a magnetic dust storage area, a negative pressure area and a support part along its axial direction. The magnetic dust storage area is equipped with a detachable dust collection net bag. The dust collection net bag has a foldable structure. After the dust collection net bag is unfolded in the horizontal direction, it becomes a multi-section net bag (6). The magnetic dust storage area is equipped with several ring magnets (7). Each ring magnet (7) is fitted onto a corresponding section of the multi-section net bag (6). The negative pressure area is equipped with a negative pressure fan (8). The support part is mounted on a movable support (1). One side of the movable support (1) is equipped with a drive mechanism for driving the negative pressure fan (8) and two rotating roller shafts (2) to rotate synchronously. The adsorption tube (5) is detachably divided into a connecting tube (9), a central circular tube (10), and a conical tube (11). The conical tube (11) is detachably divided into a first conical tube (12) and a second conical tube (13). The second conical tube (13) is horizontally mounted on the upper end of the movable support (1). The second conical tube (13) has several oblique exhaust ports (14) evenly distributed along the circumference of the second conical tube (13). The large-diameter end of the first conical tube (12) is coaxially fixed to the large-diameter end of the second conical tube (13). One end of the central circular tube (10) is connected to the first conical tube (12). The small diameter end of the tube (9) is coaxially fixed, and one end of the connecting tube (9) is coaxially fixed with the other end of the middle round tube (10). The other end of the connecting tube (9) is formed with a threaded connector (15). The middle round tube (10), the first cone tube (12) and the second cone tube (13) are respectively the magnetic dust storage area, the negative pressure area and the support part in the above-mentioned adsorption tube (5). The multi-section net bag (6) is detachably set in the middle round tube (10), the negative pressure fan (8) is set in the first cone tube (12), and the small diameter end of the flared adsorption cover (4) is screwed onto the threaded connector (15).

2. The environmentally friendly metal polishing device according to claim 1, characterized in that, The multi-section net bag (6) includes a flat net bag (16), a first conical connecting nozzle (17), several annular net bags (18), and several connecting rings (19). Each pair of adjacent annular net bags (18) is connected by a connecting ring (19). The large-diameter end of the first conical connecting nozzle (17) is connected to one of the annular net bags (18) through a connecting ring (19). The flat net bag (16) is connected to one of the annular net bags (18) through a connecting ring (19). The first conical connecting nozzle (17) is close to the connecting tube (9), and the flat net bag (16) is close to the first conical tube (12). A second conical connecting nozzle (20) is coaxially fixed inside the end of the middle round tube (10) near the connecting tube (9). The large-diameter end of the connector (20) faces the connecting tube (9). A rectangular slot (21) is formed on the small-diameter end of the second conical connector (20). A rectangular insert (22) is formed on the small-diameter end of the first conical connector (17) and inserted upward into the rectangular slot (21). Several annular slots (23) for connecting rings (19) to be engaged are formed in the middle round tube (10). An annular groove (24) for corresponding annular magnets (7) to be engaged is formed between each two adjacent annular slots (23). A strip-shaped notch (25) is opened on the lower half of the middle round tube (10). The length of the strip-shaped notch (25) is the same as the length of the multi-section net bag (6). A detachable arc-shaped cover plate (26) is installed on the strip-shaped notch (25).

3. The environmentally friendly metal polishing device according to claim 1, characterized in that, A perforated circular plate (27) is fixed between the first cone tube (12) and the second cone tube (13). The perforated circular plate (27) is coaxial with the first cone tube (12). The center of the perforated circular plate (27) is solid. The negative pressure fan (8) is coaxially connected to the center of the perforated circular plate (27). The second cone tube (13) is provided with a drive shaft (28) coaxially fixed with the negative pressure fan (8). The negative pressure fan (8) is located on the side of the perforated circular plate (27) close to the first cone tube (12). The drive shaft (28) is located on the side of the perforated circular plate (27) close to the second cone tube (13). One end of the drive shaft (28) is rotatably connected to the upper end of the movable bracket (1). The drive mechanism is used to drive the drive shaft (28) and the two rotating roller shafts (2) to rotate synchronously.

4. The environmentally friendly metal polishing device according to claim 3, characterized in that, Both sides of the No. 2 tapered tube (13) are formed with horizontal support plates (29). Each horizontal support plate (29) is provided with a columnar tube sleeve (30) whose axis is parallel to the No. 2 tapered tube (13). Each rotating roller shaft (2) is rotatably installed in the corresponding columnar tube sleeve (30). One end of each rotating roller shaft (2) extends toward the movable bracket (1), and the other end of each rotating roller shaft (2) extends toward the flared adsorption cover (4). The flared adsorption cover (4) has two through holes (31) that are respectively opposite to the two rotating roller shafts (2). Each through hole (31) is formed with a guide sleeve (32) that is coaxial with the corresponding rotating roller shaft (2). Each polishing wheel (3) is coaxially connected to the corresponding rotating roller shaft (2) through a connecting shaft (33) inserted into the guide sleeve (32).

5. The environmentally friendly metal polishing device according to claim 4, characterized in that, The drive mechanism includes a motor (34), a first synchronous pulley group, a second synchronous pulley group, and a third synchronous pulley group. The motor (34) is horizontally fixed on the side of the movable bracket (1) away from the second tapered tube (13). The first synchronous pulley group includes a first synchronous belt (35) and two first synchronous pulleys (36). The two first synchronous pulleys (36) are coaxially fixed to the drive shaft (28) and one of the rotating roller shafts (2), respectively. The first synchronous belt (35) drives the two first synchronous pulleys (36) together. The second synchronous pulley group includes a second synchronous belt. The belt (37) and two No. 2 synchronous pulleys (38) are coaxially fixed to the drive shaft (28) and another rotating roller shaft (2), respectively. The No. 2 synchronous belt (37) drives the two No. 2 synchronous pulleys (38). The No. 3 synchronous pulley group includes a No. 3 synchronous belt (39) and two No. 3 synchronous pulleys (40). The two No. 3 synchronous pulleys (40) are coaxially fixed to the output end of the motor (34) and the drive shaft (28), respectively. The No. 3 synchronous belt (39) drives the two No. 3 synchronous pulleys (40).

6. The environmentally friendly metal polishing device according to claim 5, characterized in that, Each columnar sleeve (30) is fixedly connected to a strip-shaped movable seat (41) at its bottom. The length direction of the strip-shaped movable seat (41) is consistent with the axial direction of the columnar sleeve (30). The bottom of each strip-shaped movable seat (41) is in contact with the top of the corresponding horizontal support plate (29). Several vertically downward limiting pins (42) are formed on the bottom of the strip-shaped movable seat (41) and are evenly distributed along the length direction of the horizontal support plate (29). Several strip-shaped grooves (43) are provided on the horizontal support plate (29) for the limiting pins (42) to slide laterally. The length direction of each strip-shaped groove (43) is evenly distributed along the length direction of the horizontal support plate (29). Perpendicular to the length direction of the strip moving seat (41), the lower end of each limiting pin (42) passes downward through the corresponding strip groove (43), and a fastening nut (44) is fitted on the lower end of each limiting pin (42). Each fastening nut (44) is threadedly connected to the lower end of the corresponding limiting pin (42). The moving bracket (1) is fixedly equipped with a first tensioner (45) and a second tensioner (46) on the side where the motor (34) is located. The first tensioner (45) tightens the first synchronous belt (35) downward, and the second tensioner (46) tightens the second synchronous belt (37) downward.

7. The environmentally friendly metal polishing device according to claim 1, characterized in that, A support (47) is fixedly connected to the bottom of the second cone tube (13), and a triangular bracket (48) is fixedly connected to the movable bracket (1). The support (47) is fixedly located on the top of the triangular bracket (48).

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