Automatic welding repair grinding equipment for ring rolling machine main roller

Abstract

The invention relates to the technical field of ring rolling machine maintenance, in particular to automatic repair welding and grinding equipment for a main roller of a ring rolling machine, which comprises a base, a support rod mounted on a support seat, a clamping component fixedly mounted on the support rod, a mechanical arm mounted on a rotary table, and a repair welding gun fixedly mounted on the mechanical arm; a first supporting plate and a second supporting plate are fixedly installed on the base, a first rotating roller and a second rotating roller are rotatably installed between the first supporting plate and the second supporting plate, a third rotating roller which vertically ascends and descends is arranged above the first rotating roller and the second rotating roller, and the first rotating roller, the second rotating roller and the third rotating roller are all sleeved with emery paper cylinders and make friction contact with a main roller of the ring rolling machine. According to the method, fatigue cracks on the outer wall of the ring rolling machine main roller can be repaired, meanwhile, the repaired ring rolling machine main roller can be precisely polished, the polishing roundness deviation is controlled within the standard range, potential safety hazards are eliminated, meanwhile, the service life of the ring rolling machine main roller is greatly prolonged, and production safety is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of ring rolling machine maintenance, and in particular discloses automatic welding and repairing equipment for a main roller of a ring rolling machine. Background Art

[0002] The main roller of the ring rolling machine is the core component of the ring rolling machine. The ring rolling machine drives the metal ring to rotate continuously and exerts radial rolling force by cooperating with the core roller, so as to produce a rolled ring with a diameter and wall thickness that meet the size. The main roller of the ring rolling machine is often made of high-strength alloy steel. When the main roller of the ring rolling machine is subjected to rolling pressure for a long time, micro cracks are prone to occur and expand into peeling, thereby causing fatigue cracks on the outer wall of the main roller of the ring rolling machine. If the crack is not repaired in time, it may cause the main roller of the ring rolling machine to break in severe cases, leaving hidden dangers for production safety.

[0003] In order to ensure that the main roller of the ring rolling machine can be used normally, the operators need to perform regular maintenance on the main roller of the ring rolling machine; at present, the operators often use a polishing machine to polish the surface of the main roller of the ring rolling machine, and install a polishing ball on the polishing machine so that the surface of the polishing ball contacts the surface of the main roller of the ring rolling machine, thereby manually polishing the fatigue cracks on the outer wall of the main roller of the ring rolling machine. The above-mentioned existing technology relies more on manual experience, which is easy to cause fluctuations in surface geometric accuracy. The polishing roundness deviation generally exceeds 0.1mm. If local depressions or protrusions occur, it will aggravate the stress concentration during the operation of the equipment and accelerate the expansion of fatigue cracks in the main roller of the ring rolling machine. Not only does it pose a safety hazard, but it also greatly reduces the service life of the main roller of the ring rolling machine and accelerates the damage of the main roller of the ring rolling machine. Summary of the invention

[0004] Aiming at the problem of reduced precision in the current repair process of the main roller of a ring rolling machine, the present invention provides an automatic welding and repairing equipment for the main roller of a ring rolling machine.

[0005] To solve the above problems, the present invention provides the following technical solutions: The automatic welding and repairing equipment for the main roller of the ring rolling machine comprises a base, a supporting base is fixedly installed on the base, a supporting rod is rotatably installed on the supporting base, a clamping assembly is fixedly installed on the supporting rod, and the clamping assembly is used to clamp the main roller of the ring rolling machine, a turntable is arranged on the side of the supporting base, the turntable is tightly connected to the base, a mechanical arm is installed on the turntable, a welding gun is fixedly loaded on the mechanical arm, and the welding gun is used to weld and repair fatigue cracks on the outer wall of the main roller of the ring rolling machine; a first supporting plate and a second supporting plate are fixedly installed on the base, a first rotating roller and a second rotating roller are rotatably installed between the first supporting plate and the second supporting plate, the first rotating roller and the second rotating roller are arranged at the same height, a third rotating roller which is vertically lifted and lowered is arranged above the first rotating roller and the second rotating roller, two ends of the third rotating roller are respectively slidably matched with the first supporting plate and the second supporting plate, and the outer parts of the first rotating roller, the second rotating roller and the third rotating roller are all covered with sandpaper cylinders and are in friction contact with the main roller of the ring rolling machine.

[0006] Preferably, a first motor is fixedly mounted on the side of the support seat, the output shaft of the first motor is arranged parallel to the support rod, and the output shaft of the first motor is rotationally matched with the support rod through a belt.

[0007] Preferably, the clamping assembly includes a C-shaped plate, the C-shaped plate is fastened to the outer wall of the support rod, the C-shaped plate is fixedly connected to the support plate, the support plate is mounted with a first wheel seat and a second wheel seat, the first support wheel and the second support wheel are rotatably mounted on the first wheel seat and the second wheel seat respectively, the side portions of the first wheel seat and the second wheel seat are provided with longitudinal beams fastened to the support plate, the inner side of the longitudinal beam is provided with a vertically lifting cross beam, the bottom of the cross beam is fixedly installed with a third wheel seat, the first clamping wheel and the second clamping wheel are rotatably mounted in the third wheel seat, and the first support wheel, the second support wheel, the first clamping wheel and the second clamping wheel jointly clamp the main roller of the ring rolling machine.

[0008] Preferably, a rotating rod is rotatably mounted inside the longitudinal beam, a rod sleeve is rotatably mounted on the outer wall of the rotating rod, the rod sleeve is tightly connected to the cross beam, and the outer side of the rod sleeve is slidably matched with the inner wall of the longitudinal beam. Preferably, a second motor is fixedly mounted on the top end of the longitudinal beam, and an output shaft of the second motor is in transmission cooperation with the rotating rod.

[0009] Preferably, a threaded rod is installed on the internal thread of the cross beam, and the inner end of the threaded rod is fastened with an adjustment block, the outer wall of the adjustment block is slidably matched with the inner wall of the cross beam, and a vertical rod is fixedly installed on the bottom of the adjustment block, and the bottom end of the vertical rod is fastened to the third wheel seat.

[0010] Preferably, a hand wheel is pre-installed on the outer end of the threaded rod.

[0011] Preferably, the outer ends of the first roller and the second roller are respectively fixedly mounted with a first gear and a second gear, a third motor is fixedly mounted on the support seat, a gearbox is installed at the output end of the third motor, a third gear is fastenedly mounted at the output shaft end of the gearbox, and the third gear is respectively meshed with the first gear and the second gear for transmission.

[0012] Preferably, the first support plate is provided with a vertically arranged first through groove, the second support plate is provided with a vertically arranged second through groove, the first through groove and the second through groove are respectively provided with a first slider and a second slider, the first slider and the second slider are respectively slidably matched with the inner walls of the first through groove and the second through groove, and the two ends of the first roller and the second roller are respectively fastened to the inner sides of the first slider and the second slider.

[0013] Preferably, the first cylinder and the second cylinder are fixedly installed in the first through groove and the second through groove respectively, the piston rods of the first cylinder and the second cylinder are arranged vertically downward, the ends of the piston rods of the first cylinder and the second cylinder are fixedly mounted with hinged seats, and the two hinged seats are respectively hinged to the first slider and the second slider.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The clamping assembly of the present invention can clamp the main rollers of the ring rolling machine with multiple sizes, and the welding gun can be used to weld the fatigue cracks on the outer wall of the main roller of the ring rolling machine by controlling the mechanical arm. At the same time, the support rod can be rotated by controlling the first motor, so as to weld the main roller of the ring rolling machine with multiple angles. The main roller of the ring rolling machine can be rolling supported by setting the first rotating roller and the second rotating roller, and the main roller of the ring rolling machine can be rolling pressed by setting the third rotating roller, so that the outer wall of the first rotating roller, the second rotating roller and the third rotating roller can be rotated by the rotation of the first rotating roller and the second rotating roller. The sandpaper cylinder of the set can grind the outer wall of the main roller of the ring rolling machine, so as to ensure that the outer diameter size of the main roller of the ring rolling machine meets the predetermined standard; the present invention can not only repair the fatigue cracks on the outer wall of the main roller of the ring rolling machine, but also accurately grind the repaired main roller of the ring rolling machine, so that the polishing roundness deviation is controlled within the standard range, effectively reducing the fatigue crack propagation speed of the main roller of the ring rolling machine, not only eliminating the safety hazard, but also greatly improving the service life of the main roller of the ring rolling machine, ensuring the ring rolling production efficiency and ensuring production safety, so it has a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the support rod installation structure of the present invention; Figure 3 It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 4 It is a schematic diagram of the installation structure of the third wheel seat of the present invention; Figure 5 This is a schematic diagram of the installation structure of the adjustment block of the present invention; Figure 6 It is a schematic diagram of the installation structure of the first cylinder and the second cylinder of the present invention; Figure 7 It is a schematic diagram of the installation structure of the first slider and the second slider of the present invention; In the figure: 1. base, 2. support base, 3. support rod, 4. clamping assembly, 401. C-type plate, 402. support plate, 403. first wheel seat, 404. second wheel seat, 405. first support wheel, 406. second support wheel, 407. longitudinal beam, 408. cross beam, 409. third wheel seat, 410. first clamping wheel, 411. second clamping wheel, 412. rotating rod, 413. rod sleeve, 414. second motor, 415. threaded rod, 416. adjustment block, 417. vertical rod, 418. 18. Hand wheel, 5. Turntable, 6. Robotic arm, 7. Welding gun, 8. First support plate, 9. Second support plate, 10. First roller, 11. Second roller, 12. Third roller, 13. First motor, 14. Belt, 15. First gear, 16. Second gear, 17. Third motor, 18. Gearbox, 19. Third gear, 20. First through slot, 21. Second through slot, 22. First slider, 23. Second slider, 24. First cylinder, 25. Second cylinder, 26. Articulated seat. DETAILED DESCRIPTION

[0016] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below 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.

[0017] This specific embodiment provides an automatic welding and repairing equipment for the main roller of a ring rolling machine, such as Figure 1-Figure 7As shown; it includes a base 1, a bottom plate is fixedly installed on the top of the base 1; a support seat 2 is fixedly installed on the base 1, two support seats 2 are provided and are fastened to the bottom plate of the base 1, bearing seats are fixedly installed on the top of the two support seats 2, and a support rod 3 is rotatably installed between the two bearing seats, a first motor 13 is fixedly installed on the side of one of the support seats 2, the output shaft of the first motor 13 is arranged parallel to the support rod 3, and the output shaft of the first motor 13 is rotatably matched with the support rod 3 through a belt 14, so that the support rod 3 can be driven to rotate on the top of the support seat 2.

[0018] The support rod 3 is fixedly mounted with a clamping assembly 4; the clamping assembly 4 comprises a C-shaped plate 401, the inner wall of the C-shaped plate 401 is in close contact with the outer wall of the support rod 3 and is fastened and connected by screws. The open end of the C-shaped plate 401 is fixedly connected with a support plate 402, the inner side of the support plate 402 is in contact with the outer wall of the support rod 3; the support plate 402 is mounted with a first wheel seat 403 and a second wheel seat 404, the bottoms of the first wheel seat 403 and the second wheel seat 404 are both provided with openings, the inner walls of the openings are in contact with the support plate 402, and the first wheel seat 403 and the second wheel seat 404 are fastened and connected with the support plate 402 by screws. The first support wheel 405 and the second support wheel 406 are rotatably mounted on the first wheel seat 403 and the second wheel seat 404, respectively, the first support wheel 405 and the second support wheel 406 are in contact with the outer wall of the main roller of the ring rolling machine and stably support the main roller of the ring rolling machine on the support rod 3.

[0019] A longitudinal beam 407 is provided on the side of the first wheel seat 403 and the second wheel seat 404, and the longitudinal beam 407 is tightly connected to the support plate 402. A rotating rod 412 is rotatably installed inside the longitudinal beam 407, and a rod sleeve 413 is rotatably sleeved on the outer wall of the rotating rod 412. The outer side of the rod sleeve 413 is tightly connected to the cross beam 408, and the outer side of the rod sleeve 413 is slidably matched with the inner wall of the longitudinal beam 407. A second motor 414 is fixedly installed on the top of the longitudinal beam 407, and the output shaft of the second motor 414 is in transmission cooperation with the rotating rod 412, thereby driving the rotating rod 412 to rotate inside the longitudinal beam 407, so that the cross beam 408 is vertically lifted and lowered along the inner side of the longitudinal beam 407. A threaded rod 415 is installed on the inner thread of the crossbeam 408, and an adjustment block 416 is fastened to the inner end of the threaded rod 415. The outer wall of the adjustment block 416 is slidably matched with the inner wall of the crossbeam 408. A handwheel 418 is pre-installed on the outer end of the threaded rod 415. The operator can rotate the threaded rod 415 by turning the handwheel, thereby adjusting the position of the adjustment block 416 in the crossbeam 408. A vertical rod 417 is fixedly installed at the bottom of the adjustment block 416, and the bottom end of the vertical rod 417 is tightly connected to the third wheel seat 409. The first clamping wheel 410 and the second clamping wheel 411 are rotatably installed in the third wheel seat 409. The first clamping wheel 410 and the second clamping wheel 411 press the main roller of the ring rolling machine against the first support wheel 405 and the second support wheel 406, so that the first support wheel 405, the second support wheel 406, the first clamping wheel 410, and the second clamping wheel 411 jointly clamp the main roller of the ring rolling machine.

[0020] A turntable 5 is provided on the side of the support seat 2, and the turntable 5 is tightly connected to the base 1. A mechanical arm 6 is installed on the turntable 5, and a welding gun 7 is fixedly loaded on the mechanical arm 6. The welding gun 7 is used to weld and repair fatigue cracks on the outer wall of the main roller of the ring rolling machine.

[0021] The base 1 is fixedly provided with a first support plate 8 and a second support plate 9. The first support plate 8 is arranged in parallel with the second support plate 9. A vertically arranged first through slot 20 is provided in the first support plate 8. A vertically arranged second through slot 21 is provided in the second support plate 9. A first slider 22 and a second slider 23 are respectively provided in the first through slot 20 and the second through slot 21. A first cylinder 24 and a second cylinder 25 are respectively provided above the first slider 22 and the second slider 23. The piston rods of the second cylinder 25 are arranged vertically downward, and the top ends of the cylinder bodies of the first cylinder 24 and the second cylinder 25 are respectively fastened to the inner walls of the first through groove 20 and the second through groove 21; the ends of the piston rods of the first cylinder 24 and the second cylinder 25 are fixedly sleeved with hinged seats 26, and the two hinged seats 26 are respectively hinged to the first slider 22 and the second slider 23, so that the first cylinder 24 and the second cylinder 25 respectively drive the first slider 22 and the second slider 23 to slide vertically in the first through groove 20 and the second through groove 21.

[0022] A third roller 12 is installed between the first slider 22 and the second slider 23 for co-rotation, and the two ends of the third roller 12 are respectively rotatably matched with the first slider 22 and the second slider 23. The first roller 10 and the second roller 11 are respectively arranged on both sides below the third roller 12, and the two ends of the first roller 10 and the second roller 11 are respectively rotatably matched with the first support plate 8 and the second support plate 9; the outer ends of the first roller 10 and the second roller 11 are respectively fixedly sleeved with a first gear 15 and a second gear 16, and a third motor 17 is fixedly installed on the support seat 2, and a gearbox 18 is installed at the output end of the third motor 17 for transmission, and a third gear 19 is fastened and sleeved on the output shaft end of the gearbox 18, and the third gear 19 is respectively meshed and driven with the first gear 15 and the second gear 16, so that the first roller 10 and the second roller 11 rotate between the first support plate 8 and the second support plate. The first roller 10, the second roller 11 and the third roller 12 are all covered with sandpaper tubes on their exteriors, and the sandpaper tubes can grind the outer walls of the main rollers of the ring rolling machine.

[0023] The working principle of the present invention is: The operator can place the main roller of the ring rolling machine in the clamping assembly 4, support the main roller of the ring rolling machine through the first supporting wheel 405 and the second supporting wheel 406, support and clamp the main roller of the ring rolling machine through the first clamping wheel 410 and the second clamping wheel 411, and control the mechanical arm 6 so that the welding gun 7 welds the fatigue cracks on the outer wall of the main roller of the ring rolling machine. In the above operation process, the operator can control the first motor 13 to rotate the support rod 3, so as to weld the main roller of the ring rolling machine at multiple angles.

[0024] After the main welding repair of the ring rolling machine is completed, the operator can place the main roller of the ring rolling machine on the first roller 10 and the second roller 11, and control the first cylinder 24 and the second cylinder 25 to make the third roller 12 press the main roller of the ring rolling machine; by starting the third motor 17, and under the meshing transmission of the first gear 15, the second gear 16 and the third gear 19, the first roller 10 and the second roller 11 are rotated, and the sandpaper tubes set on the outside of the first roller 10, the second roller 11 and the third roller 12 can grind the outer wall of the main roller of the ring rolling machine, so as to ensure that the outer diameter size of the main roller of the ring rolling machine meets the predetermined standard.

[0025] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic welding and repairing equipment for the main roller of a ring rolling machine, comprising a base (1), characterized in that: A support seat (2) is fixedly mounted on the base (1), a support rod (3) is rotatably mounted on the support seat (2), a clamping assembly (4) is fixedly mounted on the support rod (3), the clamping assembly (4) is used to clamp the main roller of the ring rolling machine, a turntable (5) is arranged on the side of the support seat (2), the turntable (5) is tightly connected to the base (1), a mechanical arm (6) is mounted on the turntable (5), a welding gun (7) is fixedly mounted on the mechanical arm (6), the welding gun (7) is used to weld and repair fatigue cracks on the outer wall of the main roller of the ring rolling machine; a first support plate (8) is fixedly mounted on the base (1) and a second support plate (9); a first roller (10) and a second roller (11) are rotatably mounted between the first support plate (8) and the second support plate (9); the first roller (10) and the second roller (11) are arranged at the same height; a third roller (12) is arranged above the first roller (10) and the second roller (11) and is vertically lifted; two ends of the third roller (12) are respectively slidably matched with the first support plate (8) and the second support plate (9); the first roller (10), the second roller (11) and the third roller (12) are all covered with sandpaper cylinders on their exteriors and are in frictional contact with the main roller of the ring rolling machine.

2. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 1 is characterized in that: A first motor (13) is fixedly mounted on the side of the support seat (2); an output shaft of the first motor (13) is arranged in parallel with the support rod (3); and the output shaft of the first motor (13) is rotationally matched with the support rod (3) via a belt (14).

3. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 1 is characterized in that: The clamping assembly (4) comprises a C-shaped plate (401), the C-shaped plate (401) being fastened to the outer wall of the support rod (3), the C-shaped plate (401) being fixedly connected to a support plate (402), a first wheel seat (403) and a second wheel seat (404) being mounted on the support plate (402), a first support wheel (405) and a second support wheel (406) being rotatably mounted on the first wheel seat (403) and the second wheel seat (404), respectively, the first wheel seat (403) and the second wheel seat (404) being rotatably mounted on the first wheel seat (403) and the second wheel seat (404) A longitudinal beam (407) is arranged on the side and is fastened to the support plate (402); a vertically lifting cross beam (408) is arranged on the inner side of the longitudinal beam (407); a third wheel seat (409) is fixedly installed on the bottom of the cross beam (408); a first clamping wheel (410) and a second clamping wheel (411) are rotatably installed in the third wheel seat (409); the first support wheel (405), the second support wheel (406), the first clamping wheel (410) and the second clamping wheel (411) jointly clamp the main roller of the ring rolling machine.

4. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 3 is characterized in that: A rotating rod (412) is rotatably mounted inside the longitudinal beam (407), a rod sleeve (413) is rotatably sleeved on the outer wall of the rotating rod (412), the rod sleeve (413) is tightly connected to the cross beam (408), and the outer side of the rod sleeve (413) is slidably matched with the inner wall of the longitudinal beam (407).

5. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 4 is characterized in that: A second motor (414) is fixedly mounted on the top end of the longitudinal beam (407), and an output shaft of the second motor (414) is in transmission cooperation with the rotating rod (412).

6. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 3 is characterized in that: A threaded rod (415) is installed on the inner thread of the cross beam (408); an inner end of the threaded rod (415) is fastened to an adjustment block (416); an outer wall of the adjustment block (416) is slidably matched with an inner wall of the cross beam (408); a vertical rod (417) is fixedly installed on the bottom of the adjustment block (416); and a bottom end of the vertical rod (417) is fastened to the third wheel seat (409).

7. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 6 is characterized in that: A hand wheel (418) is pre-installed on the outer end of the threaded rod (415).

8. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 1 is characterized in that: The first gear (15) and the second gear (16) are fixedly mounted on the outer ends of the first rotating roller (10) and the second rotating roller (11), respectively; a third motor (17) is fixedly mounted on the support seat (2); a gearbox (18) is installed at the output end of the third motor (17); a third gear (19) is fixedly mounted on the output shaft end of the gearbox (18); and the third gear (19) is meshed with the first gear (15) and the second gear (16) for transmission.

9. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 1 is characterized in that: The first support plate (8) is provided with a vertically arranged first through groove (20), the second support plate (9) is provided with a vertically arranged second through groove (21), the first through groove (20) and the second through groove (21) are provided with a first sliding block (22) and a second sliding block (23) respectively, the first sliding block (22) and the second sliding block (23) are slidably matched with the inner walls of the first through groove (20) and the second through groove (21) respectively, and the two ends of the first rotating roller (10) and the second rotating roller (11) are respectively fastened to the inner sides of the first sliding block (22) and the second sliding block (23).

10. The automatic welding and grinding equipment for the main roller of a ring rolling machine according to claim 9, characterized in that: A first cylinder (24) and a second cylinder (25) are fixedly mounted in the first through groove (20) and the second through groove (21), respectively. The piston rods of the first cylinder (24) and the second cylinder (25) are arranged vertically downward. The ends of the piston rods of the first cylinder (24) and the second cylinder (25) are fixedly sleeved with hinge seats (26). The two hinge seats (26) are hingedly connected to the first slider (22) and the second slider (23), respectively.

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