Polishing, cleaning and derusting device for large workpieces

Abstract

The invention discloses a polishing, cleaning and derusting device for large workpieces, and particularly relates to the technical field of polishing and derusting, the polishing, cleaning and derusting device comprises a polishing box, and a polishing assembly is mounted in the polishing box; the grinding assembly comprises a first stepping motor which is fixedly connected with one side of the grinding box, the output end of the first stepping motor is fixedly connected with a first threaded rod, one end of the first threaded rod is fixedly connected with a first chain wheel, the outer side of the first chain wheel is meshed with a chain, and the inner side of the chain is meshed with a second chain wheel. By arranging the grinding assembly, compared with the prior art, two moving frames are used for driving a grinding ring to move in parallel in the grinding process, the time of a large workpiece making contact with the grinding ring in the grinding process can be effectively shortened, scratches generated by single-direction grinding can be reduced, and the grinding efficiency is improved. And meanwhile, the grinding ring can move in parallel along with rotation of the workpiece, it can be guaranteed that the grinding effect of the surface of the workpiece is more uniform, and the grinding quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and rust removal, and more specifically to a grinding, cleaning and rust removal device for large workpieces. Background Art

[0002] When welding large cylinders, the surface of the cylinders will rust due to long-term storage. However, rust has a great impact on welding, which not only affects the quality of welding, but also reduces the service life of the welding machine. Therefore, rust removal is required when welding the cylinders.

[0003] In the prior art, workers generally use a handheld cutting machine equipped with a grinding disc to remove rust and polish the cylinder. The operation of this tool not only requires workers to have certain work experience, but also once the wear is too deep, it will damage the surface of the large cylinder and make its surface uneven. At the same time, the workers will work for a long time, which will bring greater labor intensity to the workers.

[0004] After searching, a Chinese patent with announcement number CN109531385A discloses a large-scale cylinder grinding and rust removal device, which uses a dust accumulation mechanism to automatically collect the generated iron filings, and the grinding and rust removal mechanism is used to grind large cylinders of different diameters. The anti-deviation mechanism limits the large cylinder, thereby effectively solving the technical problems in the prior art that the iron filings generated after grinding and rust removal cannot be collected and it is difficult to limit the large cylinder.

[0005] When the above-mentioned large-scale cylinder grinding and rust removal device is actually used, the general grinding device grinds the workpiece in a fixed manner, which may cause the contact point between the grinding ring and the workpiece to be aggravated by friction for a long time, thereby reducing the grinding effect. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a grinding, cleaning and rust removal device for large workpieces to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A grinding, cleaning and rust removal device for large workpieces, comprising a grinding box, wherein a grinding assembly is installed inside the grinding box; The grinding assembly includes a first stepper motor, the first stepper motor is fixedly connected to one side of the grinding box, the first stepper motor output end is fixedly connected to a first threaded rod, one end of the first threaded rod is fixedly connected to a first sprocket, a chain is meshed on the outer side of the first sprocket, and a second sprocket is meshed on the inner side of the chain, a second threaded rod is fixedly connected to one side of the second sprocket, one end of the first threaded rod and the second threaded rod are both rotatably connected to a support plate, one end of the second threaded rod is rotatably connected to the inner side of the grinding box, the first threaded rod and the second threaded rod are both threadedly connected to a moving frame on the outer side, a grinding ring is welded on one side of the moving frame, a plurality of grinding strips are fixedly connected to one side of the grinding ring, a dust collecting ring is fixedly connected to the bottom end of the grinding ring, a baffle is fixedly connected to the inner side of the dust collecting ring, and two roller brushes are rotatably connected inside the dust collecting ring.

[0008] By adopting the above technical solution: utilizing two grinding rings to move in parallel when the workpiece rotates, it is possible to move in all directions along the surface of the workpiece, ensuring that every part of the workpiece surface can be fully ground.

[0009] As a further description of the above technical solution: a dust suction fan is fixedly connected to the upper surface of the polishing box, the output end of the dust suction fan is connected to a first connecting pipe, one end of the first connecting pipe is connected to a dust collection box, the upper surface of the dust collection box is fixedly connected to the inner side of the polishing box, the input end of the dust suction fan is connected to a second connecting pipe, one end of the second connecting pipe is connected to a dust collection box, and the lower surface of the dust collection box is fixedly connected to a base.

[0010] By adopting the above technical solution: under the action of the dust suction fan, the dust inside the grinding box can be effectively absorbed during the grinding process inside the grinding box, thereby reducing the splashing of dust inside the grinding box.

[0011] As a further description of the above technical solution: a fixing mechanism is arranged inside the polishing box, and the fixing mechanism includes a servo motor, the servo motor is fixedly connected to one side of the polishing box, the servo motor output end is connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a turntable, and one side of the turntable is provided with a plurality of first sliding grooves, one end of the rotating shaft is fixedly connected with the first telescopic cylinder, the inner side of the first telescopic cylinder is slidably connected with the second telescopic cylinder, the first telescopic cylinder and the outer side of the second telescopic cylinder are both fixedly connected with a plurality of connecting blocks, the outer sides of the connecting blocks are hinged with a pushing rod, the pushing rods are rotatably connected with a support shaft, one end of the pushing rod is movably connected with a supporting ring, one side of the supporting ring is slidably connected with the inner side of the first sliding groove, the outer side of the support ring is fixedly connected with an anti-slip pad, the outer side of the first telescopic cylinder is provided with a plurality of second sliding grooves, the outer side of the second telescopic cylinder is slidably connected with the inner side of the first telescopic cylinder through the second sliding groove, the first telescopic cylinder is fixedly connected with an electric push rod inside, and one end of the electric push rod is fixedly connected with one side of the second telescopic cylinder.

[0012] By adopting the above technical solution: using multiple support rings to expand and contract inside the large cylinder, the large cylinder can be effectively fixed inside the grinding box, which makes it easier for the cylinder to remain relatively stable when rotating and reduces displacement during the grinding process.

[0013] As a further description of the above technical solution: a second stepper motor is fixedly connected to one side of the base, a third threaded rod is fixedly connected to the output end of the second stepper motor, the third threaded rod is rotatably connected to the inside of the base, and the outer side of the third threaded rod is threadedly connected to the movable base.

[0014] By adopting the above technical solution: the movable base is threadedly connected with the third threaded rod, so that the movable base can transport the workpiece into the polishing box.

[0015] Technical effects and advantages of the present invention: 1. By setting up a grinding assembly, compared with the prior art, two moving frames are used to drive the grinding ring to move in parallel during the grinding process, which can effectively reduce the time that large workpieces are in contact with the grinding ring during grinding, and help reduce scratches caused by grinding in a single direction. At the same time, the grinding ring can move in parallel with the rotation of the workpiece, which can ensure that the grinding effect of the workpiece surface is more uniform and improve the grinding quality; 2. By setting up a fixing mechanism, compared with the prior art, the cylindrical workpiece can be effectively fixed by extending and retracting multiple support rings inside a large cylinder. At the same time, it is convenient for the cylinder to maintain relative stability when rotating, reducing displacement during the grinding process, and helping to ensure the consistency of the workpiece surface grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the left side structure of the polishing box of the present invention.

[0018] Figure 3 It is a schematic diagram of the local structure of the connection between the support plate and the polishing box of the present invention.

[0019] Figure 4 It is the internal cross-sectional view of the grinding box of the present invention.

[0020] Figure 5 It is a schematic diagram of the local structure of the connection between the turntable and the support ring of the present invention.

[0021] Figure 6 It is a schematic diagram of the local structure of the connection between the base and the movable base of the present invention.

[0022] Figure 7 It is a schematic diagram of the local structure of the connection of the grinding ring of the present invention.

[0023] Figure 8 It is a schematic diagram of the internal structure of the first telescopic cylinder of the present invention.

[0024] The accompanying drawings are marked as follows: 1. grinding box; 2. first stepper motor; 3. first threaded rod; 4. first sprocket; 5. chain; 6. second sprocket; 7. support plate; 8. second threaded rod; 9. movable frame; 10. grinding ring; 11. grinding strip; 12. dust collecting ring; 13. baffle; 14. roller brush; 15. dust suction fan; 16. first connecting pipe; 17. dust collecting box; 18. second connecting pipe; 19. dust collecting box; 20. servo motor; 21. rotating shaft; 22. turntable; 23. first slide groove; 24. first telescopic cylinder; 25. second telescopic cylinder; 26. pushing rod; 27. support shaft; 28. support ring; 29. ​​anti-skid pad; 30. connecting block; 31. second slide groove; 32. electric push rod; 33. base; 34. second stepper motor; 35. third threaded rod; 36. movable base. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The embodiment of the present application discloses a grinding, cleaning and rust removal device for large workpieces, comprising a grinding box 1, wherein a grinding assembly is installed inside the grinding box 1; The grinding assembly includes a first stepper motor 2, which is fixedly connected to one side of the grinding box 1, a first threaded rod 3 is fixedly connected to the output end of the first stepper motor 2, one end of the first threaded rod 3 is fixedly connected to the first sprocket 4, a chain 5 is meshed on the outer side of the first sprocket 4, a second sprocket 6 is meshed on the inner side of the chain 5, a second threaded rod 8 is fixedly connected to one side of the second sprocket 6, one end of the first threaded rod 3 and the second threaded rod 8 are both rotatably connected to a support plate 7, one end of the second threaded rod 8 is rotatably connected to the inner side of the grinding box 1, a moving frame 9 is threadedly connected to the outer side of the first threaded rod 3 and the second threaded rod 8, a grinding ring 10 is welded to one side of the moving frame 9, a plurality of grinding strips 11 are fixedly connected to one side of the grinding ring 10, a dust collecting ring 12 is fixedly connected to the bottom end of the grinding ring 10, a baffle 13 is fixedly connected to the inner side of the dust collecting ring 12, and two roller brushes 14 are rotatably connected to the inside of the dust collecting ring 12, and the first stepper motor 2 is used to grind the grinding ring 10. Drive the first threaded rod 3 to rotate, so that the first threaded rod 3 drives the first sprocket 4 to rotate, and the first sprocket 4 is connected to the second sprocket 6 through the chain 5 to rotate, and the support plate 7 provides support force for the first sprocket 4 and the second sprocket 6 to rotate, so that the rotation of the second sprocket 6 can drive the second threaded rod 8 to rotate, so that the first threaded rod 3 and the second threaded rod 8 can drive the movable frame 9 to move through the thread, so that the movable frame 9 can drive the grinding ring 10 to move parallel to the outside of the workpiece during grinding, which can effectively reduce the contact time of the large workpiece with the grinding ring 10 during grinding. At the same time, the dust collecting ring 12 can tighten the grinding debris, and the baffle 13 can separate the fixed debris and dust on the inner side of the dust collecting ring 12 for easy distinction and processing. At the same time, the two roller brushes 14 can clean the dust on the outside of the workpiece while grinding, thereby reducing the adhesion of dust on the surface of the workpiece.

[0027] Reference Figure 2 and 3 As shown, a dust suction fan 15 is fixedly connected to the upper surface of the polishing box 1, and the output end of the dust suction fan 15 is connected to a first connecting pipe 16, one end of the first connecting pipe 16 is connected to a dust collection box 17, the upper surface of the dust collection box 17 is fixedly connected to the inner side of the polishing box 1, and the input end of the dust suction fan 15 is connected to a second connecting pipe 18, one end of the second connecting pipe 18 is connected to a dust collecting box 19, and the lower surface of the dust collecting box 19 is fixedly connected to a base 33. Under the action of the dust suction fan 15, the dust generated during the polishing process can be absorbed inside the polishing box 1 through the dust collection box 17, and the dust is transported to the inside of the dust collecting box 19 through the second connecting pipe 18, so as to facilitate the centralized collection and treatment of the dust.

[0028] Reference Figure 8 and 5As shown, a fixing mechanism is arranged inside the grinding box 1, and the fixing mechanism includes a servo motor 20, which is fixedly connected to one side of the grinding box 1, a rotating shaft 21 is connected to the output end of the servo motor 20, a rotating disk 22 is fixedly connected to the outer side of the rotating shaft 21, and a plurality of first sliding grooves 23 are provided on one side of the rotating disk 22, a first telescopic cylinder 24 is fixedly connected to one end of the rotating shaft 21, a second telescopic cylinder 25 is slidably connected to the inner side of the first telescopic cylinder 24, a plurality of connecting blocks 30 are fixedly connected to the outer sides of the first telescopic cylinder 24 and the second telescopic cylinder 25, a pushing rod 26 is hingedly arranged on the outer side of the connecting block 30, a supporting shaft 27 is rotatably connected between the pushing rods 26, a supporting ring 28 is movably connected to one end of the pushing rod 26, one side of the supporting ring 28 is slidably connected to the inner side of the first sliding groove 23, an anti-slip pad 29 is fixedly connected to the outer side of the supporting ring 28, a plurality of second sliding grooves 31 are provided on the outer side of the first telescopic cylinder 24, the outer side of the second telescopic cylinder 25 is slidably connected to the inner side of the first telescopic cylinder 24 through the second sliding groove 31, and the first telescopic cylinder 24 is fixed inside. The second telescopic cylinder 25 can be pulled to move inside the first telescopic cylinder 24 by the extension and retraction of the electric push rod 32, so that the second telescopic cylinder 25 and the first telescopic cylinder 24 can drive the plurality of connecting blocks 30 to move relative to each other. One end of the push rod 26 is hinged to the outer side of the connecting block 30, so that the two connecting blocks 30 can push the push rods 26 to move crosswise. The support shaft 27 provides a supporting force between the two push rods 26, so that the two push rods 26 can move crosswise. The two push rods 26 can push the support ring 28 to move while crossing, so that one end of the support ring 28 slides inside the first slide groove 23. The first slide groove 23 provides a guiding role for the movement of the support ring 28, so that the plurality of support rings 28 can be telescopically moved inside the large cylinder, thereby effectively fixing the cylindrical workpiece, making it convenient for the cylinder to maintain relative stability during rotation, reducing displacement during the grinding process, and helping to ensure the consistency of the workpiece surface grinding.

[0029] Reference Figure 6 As shown, a second stepper motor 34 is fixedly connected to one side of the base 33, and a third threaded rod 35 is fixedly connected to the output end of the second stepper motor 34. The third threaded rod 35 is rotatably connected to the inside of the base 33, and a movable base 36 is threadedly connected to the outer side of the third threaded rod 35. The third threaded rod 35 can drive the movable base 36 to move through the thread, so that the movable base 36 can transport the large cylinder to the inside of the grinding box 1, and insert the inner side of the large cylinder into the outer sides of multiple support rings 28, so as to facilitate the subsequent extension and contraction of multiple support rings 28 to fix the cylinder.

[0030] Working principle of the invention: The invention designs a grinding, cleaning and rust removal device for large workpieces. The specific structure is as shown in the attached manual. Figure 1-6As shown, in the technical solution, through the mutual cooperation between various structures, when it is necessary to grind and remove rust on a large cylinder, first open the cabinet door on one side of the grinding box 1, then place the cylinder on the movable base 36, and start the second stepper motor 34. The second stepper motor 34 is used to drive the third threaded rod 35 to rotate, so that the third threaded rod 35 can drive the movable base 36 to move into the grinding box 1 through the thread, so that the movable base 36 can transport the cylinder to the inside of the grinding box 1, and at the same time, the inner cavity of the cylinder can pass through multiple support rings 28 and move to one side of the turntable 22, and then start the electric push rod 32, and use the electric push rod 32 to extend and retract inside the first telescopic cylinder 24, so that the electric push rod 32 can pull the second telescopic cylinder 25 to slide inside the first telescopic cylinder 24, and pass through the outer side of the second telescopic cylinder 25 and multiple inner sides of the second slide groove 31. The second telescopic cylinder 25 can slide, thereby limiting the sliding position of the second telescopic cylinder 25. When the second telescopic cylinder 25 moves, it can drive the multiple connecting blocks 30 to move. One end of the multiple pushing rods 26 is hinged to the outer side of the connecting block 30, so that when the second telescopic cylinder 25 drives the connecting block 30 to move, the two pushing rods 26 can be pushed to move crosswise. The support shaft 27 can provide a supporting force between the installation of the two pushing rods 26, so that the other ends of the two pushing rods 26 can push the supporting ring 28 to move to one side. At the same time, one side of the supporting ring 28 can slide inside the first sliding groove 23. The first sliding groove 23 can provide a guiding effect for the movement of the supporting ring 28, so that the multiple supporting rings 28 can telescopically move inside the inner cavity of the cylinder body, so that the multiple supporting rings 28 can drive the anti-skid pads 29 to fit the inner side of the cylinder body, so that the cylinder body can be effectively fixed inside the polishing box 1. When grinding and rust removal work is required, the servo motor 20 is started, and the servo motor 20 is used to drive the rotating shaft 21 to rotate, so that the rotating shaft 21 can drive the first telescopic cylinder 24 to rotate, and at the same time, the rotation of the rotating shaft 21 can drive the turntable 22 to rotate, thereby driving multiple support rings 28 to rotate, so that the large cylinder can rotate inside the grinding box 1, and the multiple grinding strips 11 on the inner side of the two grinding rings 10 can fit with the outer side of the cylinder, so that the surface of the cylinder can fully contact the multiple grinding strips 11 when rotating, so that the grinding ring 10 can grind and remove rust on the outer side of the cylinder, and at the same time, the first stepper motor 2 is started, and the first stepper motor 2 is used to drive the first threaded rod 3 to rotate, so that the first threaded rod 3 drives the first sprocket 4 to rotate, and the first sprocket 4 is connected to the second sprocket 6 through the chain 5 for rotation, and the two support plates 7 can provide support force for the rotation of the first sprocket 4 and the second sprocket 6. , so that the first threaded rod 3 and the second threaded rod 8 can drive the moving frame 9 to move in parallel, so that the two moving frames 9 can drive the grinding ring 10 to move in parallel on the outside of the cylinder, which can effectively reduce the long-term contact between the outside of the cylinder and the grinding ring 10. Debris will fall off during the grinding process of the grinding ring 10 and the grinding strip 11 on the outside of the cylinder, and the cavity inside the dust collecting ring 12 can effectively collect the debris. At the same time, the two roller brushes 14 can clean the debris attached to the outside of the cylinder, reducing the adhesion of debris on the outside of the cylinder. During the grinding and rust removal work, the dust suction fan 15 is started, and the dust suction fan 15 can transmit the suction force to the dust suction box 17 through the first connecting pipe 16. The dust suction box 17 can absorb the dust inside the grinding box 1, and under the action of the dust suction fan 15, the dust is transported to the dust collecting box 19 through the second connecting pipe 18, thereby reducing the scattering of grinding dust inside the grinding box 1.

[0031] Among them, in the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the case of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other; The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned belong to the prior art, so they are not shown in the figure and will not be described here; Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding, cleaning and rust removal device for large workpieces, comprising a grinding box (1), characterized in that: A grinding assembly is installed inside the grinding box (1); The grinding assembly comprises a first stepper motor (2), the first stepper motor (2) being fixedly connected to one side of the grinding box (1), the output end of the first stepper motor (2) being fixedly connected to a first threaded rod (3), one end of the first threaded rod (3) being fixedly connected to a first sprocket (4), a chain (5) being meshed on the outer side of the first sprocket (4), a second sprocket (6) being meshed on the inner side of the chain (5), one side of the second sprocket (6) being fixedly connected to a second threaded rod (8), one end of each of the first threaded rod (3) and the second threaded rod (8) being rotatably connected. A support plate (7) is provided, one end of the second threaded rod (8) is rotatably connected to the inner side of the grinding box (1), the outer sides of the first threaded rod (3) and the second threaded rod (8) are both threadedly connected to a movable frame (9), a grinding ring (10) is welded to one side of the movable frame (9), a plurality of grinding strips (11) are fixedly connected to one side of the grinding ring (10), a dust collecting ring (12) is fixedly connected to the bottom end of the grinding ring (10), a baffle (13) is fixedly connected to the inner side of the dust collecting ring (12), and two roller brushes (14) are rotatably connected to the inside of the dust collecting ring (12).

2. The grinding, cleaning and rust removal device for large workpieces according to claim 1 is characterized in that: A dust suction fan (15) is fixedly connected to the upper surface of the polishing box (1); an output end of the dust suction fan (15) is connected to a first connecting pipe (16); one end of the first connecting pipe (16) is connected to a dust suction box (17); and the upper surface of the dust suction box (17) is fixedly connected to the inner side of the polishing box (1).

3. The grinding, cleaning and rust removal device for large workpieces according to claim 2 is characterized in that: The input end of the dust suction fan (15) is connected to a second connecting pipe (18), one end of the second connecting pipe (18) is connected to a dust collecting box (19), and the lower surface of the dust collecting box (19) is fixedly connected to a base (33).

4. The grinding, cleaning and rust removal device for large workpieces according to claim 1 is characterized in that: A fixing mechanism is provided inside the polishing box (1), the fixing mechanism comprising a servo motor (20), the servo motor (20) being fixedly connected to one side of the polishing box (1), and the output end of the servo motor (20) being connected to a rotating shaft (21).

5. The grinding, cleaning and rust removal device for large workpieces according to claim 4 is characterized in that: A rotating disk (22) is fixedly connected to the outside of the rotating shaft (21), a plurality of first sliding grooves (23) are provided on one side of the rotating disk (22), a first telescopic cylinder (24) is fixedly connected to one end of the rotating shaft (21), and a second telescopic cylinder (25) is slidably connected to the inside of the first telescopic cylinder (24).

6. The grinding, cleaning and rust removal device for large workpieces according to claim 5 is characterized in that: A plurality of connection blocks (30) are fixedly connected to the outside of the first telescopic cylinder (24) and the second telescopic cylinder (25), a push rod (26) is hingedly connected to the outside of the connection block (30), and a support shaft (27) is rotatably connected between the push rods (26).

7. The grinding, cleaning and rust removal device for large workpieces according to claim 6 is characterized in that: One end of the push rod (26) is movably connected to a support ring (28), one side of the support ring (28) is slidably connected to the inner side of the first slide groove (23), and the outer side of the support ring (28) is fixedly connected to an anti-slip pad (29).

8. The grinding, cleaning and rust removal device for large workpieces according to claim 5 is characterized in that: A plurality of second slide grooves (31) are provided on the outside of the first telescopic cylinder (24); the outside of the second telescopic cylinder (25) is slidably connected to the inside of the first telescopic cylinder (24) via the second slide grooves (31); an electric push rod (32) is fixedly connected inside the first telescopic cylinder (24); one end of the electric push rod (32) is fixedly connected to one side of the second telescopic cylinder (25).

9. The grinding, cleaning and rust removal device for large workpieces according to claim 3 is characterized in that: A second stepping motor (34) is fixedly connected to one side of the base (33); a third threaded rod (35) is fixedly connected to an output end of the second stepping motor (34); the third threaded rod (35) is rotatably connected to the inside of the base (33); and a movable base (36) is threadedly connected to the outside of the third threaded rod (35).

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