Punched square tube hardware inner hole polishing device

Abstract

The invention belongs to the technical field of polishing devices, and particularly relates to a punched square tube hardware inner hole polishing device which comprises a base, and an adjustable polishing assembly is arranged on the base; the adjustable grinding assembly comprises a sliding seat slidably connected to one side of the upper end face of the base, the upper end face of the sliding seat is slidably connected with a supporting plate, one side of the supporting plate is slidably connected with a moving arm, and two grinding blocks are rotationally arranged at the end of the moving arm. The base is further provided with a grinding sealing assembly. By means of the adjustable polishing assembly and the polishing sealing assembly, in the polishing process, splashing chippings can be intercepted by the first elastic cloth, the second elastic cloth, the third elastic cloth and the positioning plate, the chippings cannot be splashed out through the two ends of the square pipe and the through holes, and therefore the situation that the chippings pollute the surrounding working environment is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding devices, in particular to a device for grinding the inner holes of punched square tube hardware. Background Art

[0002] Hardware is a kind of metal or non-metal accessories widely used in the fields of machinery manufacturing, building decoration, electronic equipment, etc. Square tubes are a kind of hardware. When some square tubes are processed, they need to be punched on the surface to adapt to different installation requirements. When the square tubes are punched, burrs and flash are prone to appear on the surface of the inner hole. These burrs and flash will affect the subsequent use of the square tubes. Therefore, in order to eliminate the punching defects and ensure the functional integrity, the inner hole of the square tube needs to be polished.

[0003] Patent publication number CN113857952A discloses a device for grinding the inner hole of a square tube hardware component, relating to the field of hardware technology. The device comprises a bracket and a workpiece, wherein a threaded ring is fixedly connected to the surface of the bracket, and a drive screw is connected to the internal threads of the threaded ring. A transmission shaft is coaxially arranged on the end of the drive screw away from the threaded ring. The device adjusts the position of a grinding drum by cooperating with a grooved plate, and a grooved rail and a slider on a slide plate. The slide plate cooperates with a positioning wheel and the grinding drum, and utilizes point contact between the positioning wheel and the inner surface of the workpiece to align the grinding surface of the grinding drum with the inner surface of the workpiece. This position of the grinding drum is thereby positioned, so that the surface of the grinding drum driving the grinding drum maintains a horizontal contact state with the surface of the inner hole, effectively improving the effect of grinding the inner hole of the square tube.

[0004] However, the above technical solution still has the following deficiencies in practical application: First, the grinding cylinder is put into the inner hole of the square tube, and then the grinding cylinder is driven to rotate, and the grinding cylinder and the inner surface of the square tube make relative motion to realize the grinding of the inner hole surface of the square tube. However, during the grinding process, flying debris will be generated. These debris are easy to splash out from the two ends of the square tube and the through holes on the surface, which pollutes the surrounding working environment. Moreover, when the debris is sucked up by a vacuum cleaner to prevent the debris from splashing, since the debris will splash in multiple directions, it is difficult to ensure that the vacuum cleaner can evenly absorb all the debris. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention proposes a device for grinding the inner holes of punched square tube hardware.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a device for grinding the inner hole of a punched square tube hardware, comprising a base, on which an adjustable grinding component is provided; The adjustable grinding assembly includes a slide seat slidably connected to one side of the upper end surface of the base, the upper end surface of the slide seat is slidably connected to a support plate, one side of the support plate is slidably connected to a lifting block, one side of the lifting block is fixedly connected to a moving arm, and two grinding blocks are rotatably provided at the end of the moving arm; The base is also provided with a polishing and sealing component; The cam is fixedly provided with a toothed plate on the top end of the toothed plate, and the toothed plate is fixedly provided with a toothed plate on the top end of the toothed plate, and the toothed plate is fixedly provided with a toothed plate on the bottom end of the toothed plate.

[0007] Preferably, a clamping mechanism is further provided on one side of the upper end surface of the base; The clamping mechanism includes a positioning plate fixedly connected to one side of the upper end surface of the base, and a plurality of clamping blocks are slidably connected to the positioning plate through a sliding groove. An electric push rod three is fixedly connected to the middle part of one side of the positioning plate, and the piston end of the electric push rod three is fixedly connected to a hinge block. A plurality of connecting rods three are rotatably provided on the hinge block, and one end of the connecting rod three is rotatably connected to one end of the clamping block.

[0008] Preferably, a threaded rod four is threadedly connected to one side of the slide, and both ends of the threaded rod four are rotatably set on the base, a motor four is fixedly connected to one side of the upper end surface of the base, and the output end of the motor four is fixedly connected to one end of the threaded rod four, a threaded rod three is threadedly connected to one side of the lower end of the support plate, and both ends of the threaded rod three are rotatably set on the slide, a motor three is fixedly connected to one side of the upper end surface of the slide, and the output end of the motor three is fixedly connected to one end of the threaded rod three, a threaded rod two is threadedly connected to one side of the lifting block, and both ends of the threaded rod two are rotatably set on the support plate, a motor two is fixedly connected to one side of the upper end of the support plate, and the output end of the motor two is fixedly connected to one end of the threaded rod two.

[0009] Preferably, both sides of the end of the movable arm are fixedly connected to a motor seven, and the output end of the motor seven is fixedly connected to the grinding block.

[0010] Preferably, one side of the upper end of the pillar is fixedly connected to an electric push rod 1, the piston end of the electric push rod 1 is fixedly connected to the bottom of the slot plate, one side of the lower end of the plug-in plate is threadedly connected to a threaded rod 5, both ends of the threaded rod 5 are rotatably set on the slot plate, one end of the slot plate is fixedly connected to a motor 6, and the output end of the motor 6 is fixedly connected to one end of the threaded rod 5.

[0011] Preferably, one side of the telescopic plate is threadedly connected to a threaded rod six, one end of the threaded rod six is rotatably set on the plug-in plate, one end of the plug-in plate is fixedly connected to a motor five, and the output end of the motor five is fixedly connected to one end of the threaded rod six.

[0012] Preferably, the mounting ring is provided with a plurality of connecting rods 1 for rotation in one circle, a connecting rod 2 is rotatably provided at one end of the connecting rod 1, a connecting block is rotatably provided at one end of the connecting rod 2, the connecting block is fixedly connected to the elastic cloth 3 at an angle, and two adjacent connecting blocks are connected by a telescopic rod 1.

[0013] Preferably, a gear ring is rotatably provided on the outer ring of the mounting ring, one end of the connecting rod is fixedly connected to a gear, the gear and the tooth block of the outer ring of the gear ring are engaged with each other, one side of the mounting ring is fixedly connected to motor eight, and the output end of motor eight is fixedly connected to one end of the connecting rod.

[0014] Preferably, a threaded rod 1 is threadedly connected to one side of the lower end of the ring body, both ends of the threaded rod 1 are rotatably arranged on the base, a motor 1 is fixedly connected to one side of the upper end surface of the base, and the output end of the motor 1 is fixedly connected to one end of the threaded rod 1.

[0015] Preferably, a plurality of electric push rods 2 are fixedly connected around the ring body 2, the piston end of the electric push rod 2 is fixedly connected to one end of the traction rod 2, the traction rod 2 and the traction rod 1 are connected through the telescopic rod 2, and the elastic cloth 1 forms a rectangular shape under the action of the traction rod 1 and the traction rod 2.

[0016] The beneficial effects of the present invention are as follows: 1. The device for drilling and polishing the inner hole of a square tube hardware described in the present invention fits one end of the square tube to be polished with the end face of one side of the positioning plate, and the square tube covers a plurality of clamping blocks, and then the hinge block is driven to move laterally by the electric push rod three, and the clamping block is driven to slide in the slide groove of the positioning plate under the action of the connecting rod three until the clamping block fits with the inner wall of the square tube, and the square tube can be fixed by means of internal support, thereby ensuring the stability of the square tube during the polishing process, which is conducive to improving the polishing efficiency.

[0017] 2. The device for drilling and grinding the inner hole of a square tube hardware according to the present invention utilizes an adjustable grinding assembly and a grinding sealing assembly. During the grinding process, flying debris will be intercepted by the elastic cloth 1, the elastic cloth 2, the elastic cloth 3, and the positioning plate, and the debris will not splash out through the ends of the square tube and the through hole, thereby avoiding the debris from polluting the surrounding working environment. Moreover, compared with the method of using a vacuum cleaner to absorb the flying debris, this method allows the grinding block to work in a closed environment, and the debris will only be in the closed environment, thereby avoiding the debris from splashing in multiple directions when the vacuum cleaner is used to absorb the debris. Then, there will be a dead corner of adsorption, and after the grinding is completed, the size and orientation of the elastic cloth three can be adjusted so that the four corners of the elastic cloth three are aligned with the four corners of the square tube, and then the elastic cloth three is driven into the inner cavity of the square tube. Since the four corners of the elastic cloth three are aligned with the four corners of the square tube, the edge of the elastic cloth three will also fit with the surface of the inner hole of the square tube, and the telescopic rod one can provide stable support for the elastic cloth three, so that the elastic cloth three can scrape off the debris on the surface of the inner hole of the square tube. At the same time, the scraped debris will be pushed to the other end of the square tube, so that the debris can be concentrated, which is convenient for unified cleaning of the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the polished closed component; Figure 3 It is a schematic diagram of the three-dimensional structure at the slot plate; Figure 4 It is a schematic diagram of the three-dimensional structure of the mounting ring; Figure 5 yes Figure 4 A partial enlarged view of the middle part; Figure 6 It is a schematic diagram of the three-dimensional structure of the stretch fabric; Figure 7 It is a schematic diagram of the six three-dimensional structures of the threaded rod; Figure 8 It is a schematic diagram of the three-dimensional structure of the ring body at two locations; Figure 9 It is a schematic diagram of the three-dimensional structure of the telescopic rod at two locations; Figure 10 It is a schematic diagram of the three-dimensional structure at the positioning plate.

[0020] In the figure: 1. Base; 2. Elastic cloth 1; 3. Support plate; 4. Moving arm; 5. Threaded rod 1; 6. Motor 1; 7. Slide; 8. Positioning plate; 9. Ring body 1; 10. Ring body 2; 11. Motor 2; 12. Threaded rod 2; 13. Lifting block; 14. Clamping block; 15. Connecting plate; 16. Motor 3; 17. Threaded rod 3; 18. Threaded rod 4; 19. Motor 4; 20. Motor 5; 21. Support; 22. Electric push rod 1; 23. Slide; 24. Slot plate; 25. Motor six; 26. Threaded rod five; 27. Mounting ring; 28. Grinding block; 29. Motor seven; 30. Telescopic rod one; 31. Elastic cloth two; 32. Elastic cloth three; 33. Connecting block; 34. Ring gear; 35. Motor eight; 36. Connecting rod one; 37. Connecting rod two; 38. Threaded rod six; 39. Telescopic plate; 40. Traction rod one; 41. Traction rod two; 42. Electric push rod two; 43. Telescopic rod two; 44. Connecting rod three; 45. Articulated block; 46. Electric push rod three; 47. Gear. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please refer to Figures 1-10 , the present invention provides a technical solution: a device for grinding the inner hole of a square tube hardware, comprising a base 1, on which an adjustable grinding component is provided; The adjustable grinding assembly includes a slide 7 slidably connected to one side of the upper end surface of the base 1, the upper end surface of the slide 7 is slidably connected to the support plate 3, one side of the support plate 3 is slidably connected to the lifting block 13, one side of the lifting block 13 is fixedly connected to the moving arm 4, and the end of the moving arm 4 is rotatably provided with two grinding blocks 28; A polishing and sealing component is also provided on the base 1; The polishing and closing assembly includes a pillar 21 fixedly connected to one side of the upper end face of the base 1, and sliding rods 23 are slidably connected to both sides of the upper end of the pillar 21, and the upper end of the sliding rod 23 is fixedly connected to a groove plate 24, and a plug-in plate 15 is slidably connected at the sliding groove of the groove plate 24. A telescopic plate 39 is plugged and slidably connected to the inner side of the plug-in plate 15, and one end of the telescopic plate 39 is fixedly connected to a mounting ring 27, and the inner ring of the mounting ring 27 is fixedly connected to an elastic cloth 2 31, and the outer ring of the mounting ring 27 is fixedly connected to an elastic cloth 3 32. A hole is provided in the middle of the elastic cloth 2 31 for the movable arm 4 to pass through. A ring body 2 10 is fixedly connected to one side of the upper end face of the base 1, and a ring body 1 9 is slidably connected to one side of the upper end face of the base 1. A plurality of traction rods 40 are plugged and slidably connected to the ring body 19 around one circle, and a plurality of traction rods 2 41 are plugged and slidably connected to the ring body 2 10 around one circle. The ends of the traction rod 1 40 and the traction rod 2 41 are fixedly connected to the elastic cloth 1 2.

[0023] In this embodiment, Figure 8 and Figure 10 As shown, a clamping mechanism is also provided on one side of the upper end surface of the base 1; The clamping mechanism includes a positioning plate 8 fixedly connected to one side of the upper end surface of the base 1, and a plurality of clamping blocks 14 are slidably connected to the positioning plate 8 through a slide groove. An electric push rod 3 46 is fixedly connected to the middle part of one side of the positioning plate 8, and the piston end of the electric push rod 3 46 is fixedly connected to a hinge block 45. A plurality of connecting rods 3 44 are rotatably provided on the hinge block 45, and one end of the connecting rod 3 44 is rotatably connected to one end of the clamping block 14.

[0024] Specifically, one end of the square tube to be polished is fitted with the end face of one side of the positioning plate 8, and the square tube covers multiple clamping blocks 14, and then the hinge block 45 is driven to move horizontally by the electric push rod three 46, and the clamping block 14 is driven to slide in the slide groove of the positioning plate 8 under the action of the connecting rod three 44 until the clamping block 14 is fitted with the inner wall of the square tube. The square tube can be fixed by means of internal support, thereby ensuring the stability of the square tube during the polishing process, which is conducive to improving the polishing efficiency.

[0025] In this embodiment, Figures 1-9 As shown, a threaded rod four 18 is threadedly connected to one side of the slide 7, and both ends of the threaded rod four 18 are rotatably set on the base 1. A motor four 19 is fixedly connected to one side of the upper end surface of the base 1, and the output end of the motor four 19 is fixedly connected to one end of the threaded rod four 18. A threaded rod three 17 is threadedly connected to one side of the lower end of the support plate 3, and both ends of the threaded rod three 17 are rotatably set on the slide 7. A motor three 16 is fixedly connected to one side of the upper end surface of the slide 7, and the output end of the motor three 16 is fixedly connected to one end of the threaded rod three 17. A threaded rod two 12 is threadedly connected to one side of the lifting block 13, and both ends of the threaded rod two 12 are rotatably set on the support plate 3. A motor two 11 is fixedly connected to one side of the upper end of the support plate 3, and the output end of the motor two 11 is fixedly connected to one end of the threaded rod two 12.

[0026] Both sides of the end of the movable arm 4 are fixedly connected to a motor 7 29, and the output end of the motor 7 29 is fixedly connected to the grinding block 28.

[0027] One side of the upper end of the pillar 21 is fixedly connected to an electric push rod 1 22, the piston end of the electric push rod 1 22 is fixedly connected to the bottom of the slot plate 24, and one side of the lower end of the plug-in plate 15 is threadedly connected to a threaded rod 5 26. Both ends of the threaded rod 5 26 are rotatably set on the slot plate 24, and one end of the slot plate 24 is fixedly connected to a motor 6 25, and the output end of the motor 6 25 is fixedly connected to one end of the threaded rod 5 26.

[0028] One side of the telescopic plate 39 is threadedly connected to a threaded rod 6 38 , one end of the threaded rod 6 38 is rotatably set on the plug-in plate 15 , one end of the plug-in plate 15 is fixedly connected to a motor 5 20 , and the output end of the motor 5 20 is fixedly connected to one end of the threaded rod 6 38 .

[0029] The mounting ring 27 is provided with a plurality of connecting rods 36 when it rotates around one circle. A connecting rod 2 37 is rotatably provided at one end of the connecting rod 1 36. A connecting block 33 is rotatably provided at one end of the connecting rod 2 37. The connecting block 33 is fixedly connected to a corner of the elastic fabric 3 32. Two adjacent connecting blocks 33 are connected by a telescopic rod 1 30.

[0030] The outer ring of the mounting ring 27 is rotatably provided with a gear ring 34, and one end of the connecting rod 1 36 is fixedly connected to a gear 47, which meshes with the tooth blocks of the outer ring of the gear ring 34. One side of the mounting ring 27 is fixedly connected to a motor 8 35, and the output end of the motor 8 35 is fixedly connected to one end of the connecting rod 1 36.

[0031] One side of the lower end of the ring body 9 is threadedly connected to a threaded rod 5, both ends of the threaded rod 5 are rotatably set on the base 1, and one side of the upper end surface of the base 1 is fixedly connected to a motor 6, and the output end of the motor 6 is fixedly connected to one end of the threaded rod 5.

[0032] A plurality of electric push rods 2 42 are fixedly connected around the ring body 2 10 . The piston end of the electric push rod 2 42 is fixedly connected to one end of the traction rod 2 41 . The traction rod 2 41 is connected to the traction rod 1 40 via a telescopic rod 2 43 . The elastic fabric 1 2 is formed into a rectangular shape under the action of the traction rod 1 40 and the traction rod 2 41 .

[0033] Specifically, in the prior art, a grinding drum is first inserted into the inner hole of a square tube, and then the grinding drum is driven to rotate, so that the grinding drum and the inner surface of the square tube move relative to each other, thereby achieving grinding of the inner hole surface of the square tube. However, during the grinding process, flying debris is generated, and these debris are easily splashed out from both ends of the square tube and the through holes on the surface, which pollutes the surrounding working environment. Moreover, when a vacuum cleaner is used to absorb the debris to prevent it from splashing, since the debris will splash in multiple directions, it is difficult to ensure that the vacuum cleaner can evenly absorb all the debris. Therefore, in order to solve the above problems, when the present embodiment is in use, after the square tube is fixed, the staff manually expands the through hole in the middle of the elastic cloth 2 31, and at the same time, the motor 4 19 drives the threaded rod 4 18 to rotate, thereby driving the movable arm 4 to move laterally, and the end of the movable arm 4 passes through the through hole in the middle of the elastic cloth 2 31 and enters the inner cavity of the square tube, and then the elastic cloth 2 31 is loosened to restore it under the action of elasticity, and fit tightly with the surface of the movable arm 4, wrapping the movable arm 4, and then according to the cross-sectional area of the square tube, the motor 8 35 is started to drive the connecting rod 1 36 and the gear 47 on one side to rotate, and the gear 47 drives the ring gear 34 to rotate, so that under the action of the ring gear 34, multiple connecting rods 1 36 and gears 47 can be rotated at the same time, and when the connecting rods 1 36 and gears 47 are connected, the connecting rods 1 36 and gears 47 can be rotated at the same time. The rod 1 36 and the connecting rod 2 37 cooperate to move the connecting block 33, and the size of the elastic cloth 3 32 can be changed by pulling the four corners of the elastic cloth 3 32 through the four connecting blocks 33, so that the total area of the elastic cloth 3 32 and the elastic cloth 2 31 is larger than the cross-sectional area of the square tube. Then, the motor 5 20 drives the threaded rod 6 38 to rotate, driving the telescopic plate 39 to slide on the inside of the plug-in plate 15 until the elastic cloth 3 32 and the elastic cloth 2 31 cover one end of the square tube. Then, according to the length of the square tube, the motor 1 6 drives the threaded rod 1 5 to rotate, so that the ring body 1 9 slides on the base 1, and the distance between the ring body 1 9 and the ring body 2 10 is adjusted. The elastic cloth 1 2 is stretched horizontally so that the length of the elastic cloth 1 2 is equal to the length of the square tube. Then, multiple electric motors are used simultaneously to The push rod 2 42 drives the traction rod 2 41 to move. Since the traction rod 2 41 is connected to the traction rod 1 40 through the telescopic rod 2 43, the traction rod 1 40 also moves synchronously, so that the elastic cloth 1 2 approaches the surface of the square tube and is tightly fitted to the surface of the square tube under the action of elastic force. The elastic cloth 1 2 wraps the surface of the square tube. Then, the two grinding blocks 28 are driven to rotate simultaneously by the motor 7 29. Then, under the action of the motor 4 19 driving the threaded rod 4 18 to rotate, the motor 3 16 driving the threaded rod 3 17 to rotate, and the motor 2 11 driving the threaded rod 2 12 to rotate, the position of the grinding block 28 in the X, Y, and Z axis directions is adjusted, so that various positions on the surface of the inner hole of the square tube can be ground. At the same time, when the movable arm 4 moves, the mounting ring 27 will also move under the action of the electric push rod 1 22 driving the groove plate 24 to rise and fall, and the motor 6 25 driving the threaded rod 5 26 to rotate, so that the elastic cloth 2 31, the elastic cloth 3 32 and the movable arm 4 move synchronously to adapt to the change of the grinding direction. During the grinding process, the flying debris will be intercepted by the elastic cloth 1 2, the elastic cloth 2 31, the elastic cloth 3 32 and the positioning plate 8, and the debris will not splash out through the ends of the square tube and the through hole, thereby avoiding the debris from polluting the surrounding working environment. Moreover, compared with the method of using a vacuum cleaner to absorb the flying debris, this method allows the grinding block 28 to work in a closed environment, and the debris will only be in a closed environment, avoiding the situation where the debris is splashed in multiple directions when the vacuum cleaner is used to absorb the debris, thereby avoiding the situation where the debris is sucked in a dead corner. Although the above method can intercept the debris in the inner hole of the square tube, a certain amount of debris will accumulate on the surface of the inner hole of the square tube after grinding. Usually, the debris attached to the inner wall of the square tube needs to be cleaned to prevent the debris from affecting the subsequent use of the square tube. Since the debris is relatively scattered on the inner wall of the square tube, it is not convenient to clean the debris attached to the inner wall of the square tube. Therefore, in order to avoid this situation, the grinding block 28 can be driven out of the square tube after grinding, and then the size of the elastic cloth 32 can be adjusted to And orientation, the four corners of the elastic cloth three 32 are aligned with the four corners of the square tube, and then the elastic cloth three 32 is driven into the inner cavity of the square tube. Since the four corners of the elastic cloth three 32 are aligned with the four corners of the square tube, the edge of the elastic cloth three 32 will also fit with the surface of the inner hole of the square tube, and the telescopic rod one 30 can provide stable support for the elastic cloth three 32, so that the elastic cloth three 32 can scrape off the debris on the surface of the inner hole of the square tube. At the same time, the scraped debris will be pushed to the other end of the square tube, so that the debris can be concentrated, which is convenient for unified cleaning of the debris.

[0034] Working principle: fit one end of the square tube to be polished with the end face of one side of the positioning plate 8, and the square tube covers multiple clamping blocks 14, and then the hinge block 45 is driven to move horizontally by the electric push rod three 46, and the clamping block 14 is driven to slide in the slide groove of the positioning plate 8 under the action of the connecting rod three 44 until the clamping block 14 fits with the inner wall of the square tube, and the square tube can be fixed by means of internal support, thereby ensuring the stability of the square tube during the polishing process, which is conducive to improving the polishing efficiency. When the square tube is fixed, the staff manually expands the through hole in the middle of the elastic cloth 2 31. At the same time, the motor four 19 drives the threaded rod four 18 to rotate, driving the movable arm 4 to move horizontally, and the end of the movable arm 4 passes through the through hole in the middle of the elastic cloth 2 31 and enters the inner cavity of the square tube, and then loosens The elastic cloth 2 31 is opened to restore it under the action of elasticity and fit tightly with the surface of the movable arm 4, wrapping the movable arm 4. Then, according to the cross-sectional area of the square tube, the motor 8 35 is started to drive the connecting rod 1 36 and the gear 47 on one side to rotate. The gear 47 drives the ring gear 34 to rotate. Then, under the action of the ring gear 34, multiple connecting rods 1 36 and gears 47 can be rotated simultaneously, and the connecting block 33 can be moved with the cooperation of the connecting rod 1 36 and the connecting rod 2 37. The size of the elastic cloth 3 32 can be changed by pulling the four corners of the elastic cloth 3 32 through the four connecting blocks 33, so that the total area of the elastic cloth 3 32 and the elastic cloth 2 31 is larger than the cross-sectional area of the square tube. Then, the motor 5 20 drives the threaded rod 6 38 to rotate, driving the telescopic plate 39 in the plug-in plate 15. The elastic cloth 1 32 and the elastic cloth 2 31 cover one end of the square tube, and then the motor 1 6 drives the threaded rod 1 5 to rotate according to the length of the square tube, so that the ring body 1 9 slides on the base 1, and the distance between the ring body 1 9 and the ring body 2 10 is adjusted, and the elastic cloth 1 2 is stretched laterally so that the length of the elastic cloth 1 2 is equal to the length of the square tube. Then, multiple electric push rods 2 42 are used to drive the traction rod 2 41 to move. Since the traction rod 2 41 and the traction rod 1 40 are connected by the telescopic rod 2 43, the traction rod 1 40 also moves synchronously, so that the elastic cloth 1 2 approaches the surface of the square tube, and under the action of the elastic force, the elastic cloth 1 2 is tightly fitted with the surface of the square tube, and the elastic cloth 1 2 wraps the surface of the square tube, and then the motor 7 29 drives the two grinding blocks 2 8 rotates simultaneously, and then, under the action of motor 4 19 driving threaded rod 4 18 to rotate, motor 3 16 driving threaded rod 3 17 to rotate, and motor 2 11 driving threaded rod 2 12 to rotate, the position of grinding block 28 in the X, Y, and Z axis directions is adjusted, so that various positions on the surface of the inner hole of the square tube can be ground. At the same time, when the movable arm 4 moves, the mounting ring 27 will also move under the action of electric push rod 1 22 driving the groove plate 24 to rise and fall, and motor 6 25 driving the threaded rod 5 26 to rotate, so that the elastic cloth 2 31 and the elastic cloth 3 32 move synchronously with the movable arm 4 to adapt to the change of the grinding direction. During the grinding process, the flying debris will be intercepted by the elastic cloth 1 2, the elastic cloth 2 31, the elastic cloth 3 32, and the positioning plate 8, and the debris will not splash out through the two ends of the square tube and the through hole.Thus, it is avoided that the debris pollutes the surrounding working environment. Moreover, compared with the method of using a vacuum cleaner to absorb the flying debris, this method allows the grinding block 28 to work in a closed environment. The debris will only be in a closed environment, avoiding the situation where the debris is splashed in multiple directions when the vacuum cleaner is used to absorb the debris, thereby causing a dead corner for adsorption. Although the debris can be intercepted in the inner hole of the square tube by the above method, a certain amount of debris will accumulate on the surface of the inner hole of the square tube after the grinding is completed. Usually, the debris attached to the inner wall of the square tube needs to be cleaned to prevent the debris from affecting the subsequent use of the square tube. However, since the debris is relatively dispersed on the inner wall of the square tube, it is not convenient to clean the debris attached to the inner wall of the square tube. Therefore, to avoid this situation, after finishing the sanding, the sanding block 28 can be driven out of the square tube, and then the size and orientation of the elastic cloth 3 32 can be adjusted so that the four corners of the elastic cloth 3 32 are aligned with the four corners of the square tube. Then, the elastic cloth 3 32 can be driven into the inner cavity of the square tube. Since the four corners of the elastic cloth 3 32 are aligned with the four corners of the square tube, the edges of the elastic cloth 3 32 will also fit with the surface of the inner hole of the square tube. In addition, the telescopic rod 1 30 can provide stable support for the elastic cloth 3 32, so that the elastic cloth 3 32 can scrape off the debris on the surface of the inner hole of the square tube. At the same time, the scraped debris will be pushed to the other end of the square tube, thereby concentrating the debris and facilitating unified cleaning of the debris.

[0035] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for polishing the inner hole of a square tube hardware, comprising a base (1), characterized in that: An adjustable grinding component is provided on the base (1); The adjustable grinding assembly comprises a slide (7) slidably connected to one side of the upper end surface of the base (1); the upper end surface of the slide (7) is slidably connected to a support plate (3); one side of the support plate (3) is slidably connected to a lifting block (13); one side of the lifting block (13) is fixedly connected to a moving arm (4); and two grinding blocks (28) are rotatably provided at the end of the moving arm (4); The base (1) is also provided with a polishing and sealing component; The polishing and sealing assembly comprises a pillar (21) fixedly connected to one side of the upper end surface of the base (1), a slide rod (23) is slidably connected to both sides of the upper end of the pillar (21), a slot plate (24) is fixedly connected to the upper end of the slide rod (23), a plug-in plate (15) is slidably connected to the slot of the slot plate (24), a telescopic plate (39) is plugged and slidably connected to the inner side of the plug-in plate (15), one end of the telescopic plate (39) is fixedly connected to a mounting ring (27), an inner ring of the mounting ring (27) is fixedly connected to a second elastic cloth (31), and the mounting ring (2 7) The outer ring is fixedly connected with elastic cloth three (32), and a hole for the movable arm (4) to pass through is provided in the middle of the elastic cloth two (31), and a ring body two (10) is fixedly connected to one side of the upper end face of the base (1), and a ring body one (9) is slidably connected to one side of the upper end face of the base (1), and the ring body one (9) is plugged and slidably connected to multiple traction rods one (40) around one circle, and the ring body two (10) is plugged and slidably connected to multiple traction rods two (41) around one circle, and the ends of the traction rod one (40) and the traction rod two (41) are fixedly connected with elastic cloth one (2).

2. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: A clamping mechanism is also provided on one side of the upper end surface of the base (1); The clamping mechanism includes a positioning plate (8) fixedly connected to one side of the upper end surface of the base (1), a plurality of clamping blocks (14) are slidably connected to the positioning plate (8) through a sliding groove, an electric push rod three (46) is fixedly connected to the middle of one side of the positioning plate (8), a piston end of the electric push rod three (46) is fixedly connected to a hinge block (45), and a plurality of connecting rods three (44) are rotatably provided on the hinge block (45), and one end of the connecting rod three (44) is rotatably connected to one end of the clamping block (14).

3. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: One side of the slide (7) is threadedly connected to a threaded rod four (18), and both ends of the threaded rod four (18) are rotatably set on the base (1). One side of the upper end surface of the base (1) is fixedly connected to a motor four (19), and the output end of the motor four (19) is fixedly connected to one end of the threaded rod four (18). One side of the lower end of the support plate (3) is threadedly connected to a threaded rod three (17), and both ends of the threaded rod three (17) are rotatably set on the slide (7). One side of the upper end surface of the slide (7) is fixedly connected to a motor three (16), and the output end of the motor three (16) is fixedly connected to one end of the threaded rod three (17). One side of the lifting block (13) is threadedly connected to a threaded rod two (12), and both ends of the threaded rod two (12) are rotatably set on the support plate (3). One side of the upper end of the support plate (3) is fixedly connected to a motor two (11), and the output end of the motor two (11) is fixedly connected to one end of the threaded rod two (12).

4. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: Both sides of the end of the movable arm (4) are fixedly connected to a motor seven (29), and the output end of the motor seven (29) is fixedly connected to the grinding block (28).

5. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: One side of the upper end of the pillar (21) is fixedly connected to an electric push rod (22), and the piston end of the electric push rod (22) is fixedly connected to the bottom of the slot plate (24). One side of the lower end of the plug-in plate (15) is threadedly connected to a threaded rod (26), and both ends of the threaded rod (26) are rotatably arranged on the slot plate (24). One end of the slot plate (24) is fixedly connected to a motor (25), and the output end of the motor (25) is fixedly connected to one end of the threaded rod (26).

6. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: One side of the telescopic plate (39) is threadedly connected to a threaded rod six (38), one end of the threaded rod six (38) is rotatably arranged on the plug-in plate (15), one end of the plug-in plate (15) is fixedly connected to a motor five (20), and the output end of the motor five (20) is fixedly connected to one end of the threaded rod six (38).

7. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: The mounting ring (27) is provided with a plurality of connecting rods (36) when it rotates around one circle. A connecting rod (37) is provided at one end when it rotates around the connecting rod (36). A connecting block (33) is provided at one end when it rotates around the connecting rod (37). The connecting block (33) is fixedly connected to a corner of the elastic cloth (32). Two adjacent connecting blocks (33) are connected via a telescopic rod (30).

8. The inner hole grinding device for punching square tube hardware according to claim 7, characterized in that: The outer ring of the mounting ring (27) is rotatably provided with a gear ring (34), one end of the connecting rod (36) is fixedly connected to a gear (47), the gear (47) and the tooth block of the outer ring of the gear ring (34) are meshed with each other, one side of the mounting ring (27) is fixedly connected to a motor (35), and the output end of the motor (35) is fixedly connected to one end of the connecting rod (36).

9. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: One side of the lower end of the ring body (9) is threadedly connected to a threaded rod (5), both ends of the threaded rod (5) are rotatably arranged on the base (1), and one side of the upper end surface of the base (1) is fixedly connected to a motor (6), and the output end of the motor (6) is fixedly connected to one end of the threaded rod (5).

10. The inner hole grinding device for punching square tube hardware according to claim 1, characterized in that: A plurality of electric push rods (42) are fixedly connected to one circle of the ring body (10). The piston end of the electric push rod (42) is fixedly connected to one end of the traction rod (41). The traction rod (41) is connected to the traction rod (40) via the telescopic rod (43). The elastic cloth (2) is formed into a rectangular shape under the action of the traction rod (40) and the traction rod (41).

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