Excavator shell welding device

Abstract

The invention belongs to the field of welding devices, and particularly relates to an excavator shell welding device which comprises a welding table, a fixing plate is fixedly connected to the middle of the front side of the upper end face of the welding table, two first sliding rods are slidably connected to the upper side of the fixing plate, and a welding gun is fixedly connected to one end of each first sliding rod. And second ring bodies are slidably connected to the two sides of the upper end face of the welding table, third sliding rods are fixedly connected to the two sides of the inner ring of the rotating ring, clamping blocks are slidably connected to the two sides of each third sliding rod, and an elastic wrapping type splash-proof mechanism for preventing sparks and welding slag from splashing to the periphery during welding is further arranged on the welding table. The two pieces of fireproof flame-retardant cloth are driven to be located on the two sides of the attaching position of the two hollowed-out pipelines through the elastic wrapping type splash-proof mechanism, the fireproof flame-retardant cloth is tightly attached to the outer walls of the hollowed-out pipelines, and during welding, splashed sparks and welding slag can be intercepted by the fireproof flame-retardant cloth; therefore, the situation that sparks and welding slag splash to the periphery and pollute the surrounding environment is avoided.

Description

Technical Field

[0001] The invention belongs to the field of welding devices, in particular to a welding device for an excavator casing. Background Art

[0002] The excavator casing is an important part of the excavator. It covers the key components of the excavator, such as the engine, water tank, hydraulic oil tank, etc., and plays a protective role. In the production process of the excavator casing, due to the complex and diverse structure of the excavator casing, it is usually composed of steel, plates and pipes of various shapes and specifications. Therefore, welding is required to firmly connect these structural parts together. Among them, the hollow pipe is a part of the excavator casing. By welding two hollow pipes of the same specifications, a more solid structure can be formed, which improves the overall strength and rigidity of the casing. In addition, since the pipe is a hollow design, the overall weight of the pipe can be reduced. At the same time, it can also be used as part of the heat dissipation pipe to transfer heat from the inside of the machine to the external environment.

[0003] The patent with announcement number CN216802201U discloses a welding device for the production and processing of excavator shells, including a base plate and a slide groove, a vertical plate is arranged on the top of the base plate, and a shock absorbing mechanism is arranged on the inner side of the vertical plate, an electric telescopic rod is arranged on the top of the vertical plate, and a top plate is arranged on the top of the electric telescopic rod, a threaded rod is arranged on the inner side of the top plate, and a pressure plate is arranged on the end of the threaded rod, the slide groove is opened on the inner side of the base plate, and the inner side of the slide groove is connected with a sliding plate, an electric welding box is installed on the top of the sliding plate, and a connecting plate is arranged on the end of the electric welding box, a pneumatic cylinder is arranged on the top of the electric welding box, and a welding head is arranged on the end of the pneumatic cylinder, and an electric push rod is connected to the side of the electric welding box; this patent facilitates the shock absorbing and protective ability of the welding parts of the lifting device during the welding process, facilitates adaptive adjustment and control of the fixation of the device, and facilitates position adjustment activities of the welding equipment.

[0004] However, the above technical solution still has the following deficiencies in practical application: When two hollow pipes of the same specifications need to be welded together, sparks and welding slag will be generated at the welding point during the welding process. When these sparks and welding slag splash around, they will not only pollute the surrounding working environment, but also adhere to the outer surface of the hollow pipe and enter the inner surface of the pipe through the holes of the hollow pipe, thereby affecting the appearance quality of the hollow pipe. In addition, the welding slag splashed to the outer and inner surfaces of the hollow pipe is relatively scattered, which also increases the difficulty of subsequent cleaning.

[0005] To this end, the present invention provides an excavator casing welding device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes an excavator casing welding device.

[0007] The technical solution adopted by the present invention to solve the technical problem is: an excavator casing welding device, comprising a welding table, a fixed plate is fixedly connected to the middle of the front side of the upper end surface of the welding table, two sliding rods 1 are slidably connected to the upper side of the fixed plate, and a welding gun is fixedly connected to one end of the sliding rod 1, and a ring body 2 is slidably connected to both sides of the upper end surface of the welding table, and a rotating ring is rotatably arranged on the inner ring of the ring body 2, and sliding rods 3 are fixedly connected to both sides of the inner ring of the rotating ring, and clamping blocks are slidably connected to both sides of the sliding rod 3, and the welding table is also provided with an elastic wrapped splash-proof mechanism to prevent sparks and welding slag from splashing to the surrounding during welding; The elastic wrapped splash-proof mechanism includes a ring body 1 fixedly connected to one side of the front end face of the frame body, and a plurality of concave rods are radially inserted and slidably connected to the ring body 1, and both ends of the concave rods are fixedly connected to connecting blocks, and one end of the connecting block is fixedly connected to a fire-retardant cloth, and a through hole is provided in the middle of the fire-retardant cloth. Since the fire-retardant cloth has a certain elasticity, the fire-retardant cloth can be stretched by driving four concave rods to slide radially at the same time to adjust its size.

[0008] Preferably, one end of the clamping block is threadedly connected to a bidirectional threaded rod three, both ends of the bidirectional threaded rod three are rotatably arranged on a rotating ring, one side of the inner ring of the rotating ring is fixedly connected to a motor six, and the output end of the motor six is ​​fixedly connected to one end of the bidirectional threaded rod three.

[0009] Preferably, the lower end of the second ring body is threadedly connected to a bidirectional threaded rod, both ends of the bidirectional threaded rod are rotatably arranged on a welding table, a motor is fixedly connected to one side of the upper end surface of the welding table, and the output end of the motor is fixedly connected to one end of the bidirectional threaded rod.

[0010] Preferably, the outer ring of the rotating ring is provided with a plurality of gear blocks, a gear 2 is rotatably provided on one side of the ring body 2, the gear 2 is meshed with the gear block of the outer ring of the rotating ring, a motor 5 is fixedly connected to one side of the ring body 2, the output end of the motor 5 is fixedly connected to the gear 2, an electric push rod 2 is fixedly connected to the upper side of the front end surface of the fixed plate, and the piston end of the electric push rod 2 is fixedly connected to one side of the welding gun.

[0011] Preferably, a plurality of connecting rods 2 are rotatably provided on the left end face of the ring body 1, a connecting rod 1 is rotatably provided on one end of the connecting rod 2, and one end of the connecting rod 1 is rotatably connected to one side of the connecting block.

[0012] Preferably, one end of connecting rod 2 is fixedly connected with gear 1, and gear 1 is rotatably arranged on ring body 1. A gear ring is rotatably arranged on the left end face of ring body 1, and tooth blocks are intermittently arranged on the inner ring of the gear ring. Gear 1 is meshed with the tooth blocks of the inner ring of the gear ring. One side of the left end face of ring body 1 is fixedly connected with motor 2, and the output end of motor 2 is fixedly connected to one end of connecting rod 2.

[0013] Preferably, one side of the upper end surface of the welding table is fixedly connected to a frame, both sides of the upper end of the frame are slidably connected to two sliding rods, the lower end of the two sliding rods is fixedly connected to a slide groove plate, the inner side of the slide groove plate is slidably connected to an adjustment plate, both sides of the adjustment plate are slidably connected to adjustment rods, the lower end of the adjustment rod is slidably connected to two sliding columns, and one end of the sliding column is fixedly connected to an L-shaped plate.

[0014] Preferably, one side of the upper end surface of the frame is fixedly connected with an electric push rod 1, the piston end of the electric push rod 1 is fixedly connected to one side of the upper end surface of the slide plate, one side of the upper end of the adjusting plate is threadedly connected with a threaded rod, both ends of the threaded rod are rotatably set on the slide plate, one end of the slide plate is fixedly connected with a motor 3, the output end of the motor 3 is fixedly connected to one end of the threaded rod, the upper end of the adjusting rod is threadedly connected with a bidirectional threaded rod 2, both ends of the bidirectional threaded rod 2 are rotatably set on the adjusting plate, one end of the adjusting plate is fixedly connected with a motor 4, the output end of the motor 4 is fixedly connected to one end of the bidirectional threaded rod 2, a spring is sleeved on one side of the sliding column, one end of the spring is fixedly connected to one side of the L-shaped plate, and the other end is fixedly connected to one side of the adjusting rod.

[0015] Preferably, a support plate is fixedly connected to one side of the upper end surface of the welding table, a rack rod is slidably connected to one side of the upper end of the support plate, a collection box 1 is fixedly connected to one end of the lower side of the rack rod, and collection boxes 2 are slidably connected to both sides of the collection box 1.

[0016] Preferably, a plurality of tooth blocks are arranged on the upper side of the rack rod, a gear three is rotatably arranged on the front end of the upper side of the support plate, the gear three is meshed with the tooth blocks on the rack rod, a motor seven is fixedly connected to the front side of the upper end of the support plate, the output end of the motor seven is fixedly connected to the gear three, an electric push rod three is fixedly connected to one side of the lower end surface of the collection box, the piston end of the electric push rod three is fixedly connected to a connecting plate, connecting rod three are rotatably arranged on both sides of the upper end surface of the connecting plate, and one end of the connecting rod three is rotatably connected to one end of the collection box two.

[0017] The beneficial effects of the present invention are as follows: 1. The excavator casing welding device described in the present invention places two pipes of the same specification between two clamping blocks on both sides, and then uses a motor six to drive a two-way threaded rod three to rotate, so that the two clamping blocks can be close to each other to clamp the ends of the pipes, and then uses a motor one to drive a two-way threaded rod one to rotate, so that the ring bodies two on both sides can slide simultaneously and approach each other until the ends of the two pipes are fitted, and then welding can be carried out, thereby ensuring the stability of the pipe welding process.

[0018] 2. The excavator casing welding device described in the present invention utilizes an elastic wrapped anti-splash mechanism to drive two fire-retardant cloths to be on both sides of the joint of two hollow pipes, and the fire-retardant cloths are in close contact with the outer wall of the hollow pipe. During welding, flying sparks and welding slag will be intercepted by the fire-retardant cloth, thereby avoiding the situation where sparks and welding slag splash to the surroundings and pollute the surrounding environment. At the same time, since the fire-retardant cloth is in close contact with the surface of the pipe, the welding slag will not splash to positions other than the pipe welding position, thereby ensuring the appearance quality of the pipe. Moreover, since the welding slag is more concentrated, the difficulty of cleaning the residual welding slag on the surface of the pipe is reduced. In addition, the welding slag can be cleaned up on the two pipes. After the two pipes are welded together, the welding slag remaining at the welding place is separated from the pipe by scraping the pipe surface with fire-retardant cloth, thereby realizing self-cleaning of the welding slag remaining at the welding place, eliminating the process of manually cleaning the welding slag at the welding place, which is more convenient and labor-saving, and ensures the appearance quality of the pipe. In addition, during the process of scraping the pipe surface with fire-retardant cloth, the collection box 1 is driven to extend into the inner cavity of the pipe, and according to the diameter of the pipe, the two collection boxes 2 are slid on both sides of the collection box 1 and close to the inner wall of the pipe. At this time, the welding slag falling through the hole above the pipe will fall into the collection box 1 and the collection box 2 for collection, while the welding slag attached to the lower half of the pipe It will fall downward under the action of gravity and will not enter the inside of the pipe, thus avoiding the situation that when the pipe surface and the fire-retardant cloth are scraped, the welding slag above the pipe falls into the inside of the pipe through the holes above the pipe, thereby causing the inner wall of the pipe to be contaminated by the welding slag. In addition, when the welding slag falls into the collecting box 1 and the collecting box 2, the collecting box 1 and the collecting box 2 can be driven to move horizontally left and right to make the welding slag evenly distributed in the collecting box 1 and the collecting box 2, so as to avoid the welding slag accumulation in the same place and causing overflow. In addition, when the pipe is separated from the fire-retardant cloth, the two fire-retardant cloths are driven to be alternately placed between the two L-shaped plates, and then the L-shaped plates are used to The surface of the fire-retardant cloth is scraped to make the welding slag attached to the surface of the fire-retardant cloth fall off, thereby achieving the cleaning effect of the intercepting surface of the fire-retardant cloth, and avoiding the welding slag falling to the pipe surface through the surface of the fire-retardant cloth during subsequent use, thereby affecting the welding effect. In addition, before the L-shaped plate scrapes the surface of the fire-retardant cloth, the fire-retardant cloth can be stretched by using the connecting block. After the fire-retardant cloth is stretched, the gap between the fibers will become larger, which helps to reduce the friction resistance between the L-shaped plate and the cloth surface. The smaller resistance makes the scraping process smoother and can effectively avoid unnecessary damage to the fire-retardant cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2It is a schematic diagram of a three-dimensional structure of a ring body; Figure 3 yes Figure 2 A partial enlarged view of the middle part; Figure 4 It is a schematic diagram of the three-dimensional structure of the frame; Figure 5 yes Figure 4 A partial enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the three-dimensional structure at the support plate; Figure 7 yes Figure 6 A partial enlarged view of point C in the middle; Figure 8 It is a schematic diagram of the three-dimensional structure of the collection box.

[0021] In the figure: 1. welding table; 2. frame; 3. motor 1; 4. two-way threaded rod 1; 5. electric push rod 1; 6. support plate; 7. fixing plate; 8. welding gun; 9. slide rod 1; 10. electric push rod 2; 11. ring body 1; 12. gear ring; 13. fire retardant cloth; 14. L-shaped plate; 15. adjustment rod; 16. concave rod; 17. connecting block; 18. connecting rod 1; 19. connecting rod 2; 20. gear 1; 21. motor 2; 22. slide rod 2; 23. slide plate; 24. electric Machine three; 25. Threaded rod; 26. Adjustment plate; 27. Two-way threaded rod two; 28. Motor four; 29. ​​Sliding column; 30. Spring; 31. Rack rod; 32. Motor five; 33. Gear two; 34. Connecting plate; 35. Ring body two; 36. Rotating ring; 37. Sliding rod three; 38. Clamping block; 39. Two-way threaded rod three; 40. Motor six; 41. Motor seven; 42. Gear three; 43. Collecting box one; 44. Collecting box two; 45. Electric push rod three; 46. Connecting rod three. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0023] Please refer to Figure 1-Figure 8The present invention provides a technical solution: a welding device for an excavator casing, comprising a welding platform 1, a fixed plate 7 is fixedly connected to the middle of the front side of the upper end surface of the welding platform 1, two slide bars 9 are slidably connected to the upper side of the fixed plate 7, a welding gun 8 is fixedly connected to one end of the slide bar 9, a ring body 2 35 is slidably connected to both sides of the upper end surface of the welding platform 1, a rotating ring 36 is rotatably arranged on the inner circle of the ring body 2 35, slide bars 3 37 are fixedly connected to both sides of the inner circle of the rotating ring 36, and clamping blocks 38 are slidably connected to both sides of the slide bar 37, and an elastic wrapped splash-proof mechanism is also provided on the welding platform 1 to prevent sparks and welding slag from splashing to the surrounding during welding; The elastic wrapped splash-proof mechanism includes a ring body 11 fixedly connected to one side of the front end face of the frame body 2, and a plurality of concave rods 16 are radially inserted and slidably connected to the ring body 11, and both ends of the concave rods 16 are fixedly connected to connecting blocks 17, and one end of the connecting block 17 is fixedly connected to a fire-retardant cloth 13, and a through hole is provided in the middle of the fire-retardant cloth 13. Since the fire-retardant cloth 13 has a certain elasticity, the fire-retardant cloth 13 can be stretched by driving the four concave rods 16 to slide radially at the same time to adjust its size.

[0024] In this embodiment, Figure 6 and Figure 7 As shown, one end of the clamping block 38 is threadedly connected to a bidirectional threaded rod 39, both ends of the bidirectional threaded rod 39 are rotatably set on the rotating ring 36, one side of the inner ring of the rotating ring 36 is fixedly connected to a motor 6 40, and the output end of the motor 6 40 is fixedly connected to one end of the bidirectional threaded rod 39.

[0025] The lower end of the ring body 2 35 is threadedly connected with a bidirectional threaded rod 1 4, both ends of the bidirectional threaded rod 1 4 are rotatably set on the welding table 1, and one side of the upper end surface of the welding table 1 is fixedly connected with a motor 3, and the output end of the motor 3 is fixedly connected to one end of the bidirectional threaded rod 4.

[0026] Specifically, two pipes of the same specification are placed between the two clamping blocks 38 on both sides, and then the motor 6 40 is used to drive the bidirectional threaded rod 3 39 to rotate, so that the two clamping blocks 38 can be brought close to each other to clamp the ends of the pipes, and then the motor 1 3 is used to drive the bidirectional threaded rod 1 4 to rotate, so that the ring bodies 2 35 on both sides can slide simultaneously and approach each other until the ends of the two pipes are fitted, and welding can be carried out, thereby ensuring the stability of the pipe welding process.

[0027] In this embodiment, Figure 1-Figure 8As shown, a plurality of tooth blocks are arranged on the outer ring of the rotating ring 36, a gear 2 33 is rotatably arranged on one side of the ring body 2 35, the gear 2 33 is meshed with the tooth blocks on the outer ring of the rotating ring 36, a motor 5 32 is fixedly connected to one side of the ring body 2 35, the output end of the motor 5 32 is fixedly connected to the gear 2 33, an electric push rod 2 10 is fixedly connected to the upper side of the front end surface of the fixed plate 7, and the piston end of the electric push rod 2 10 is fixedly connected to one side of the welding gun 8.

[0028] The left end surface of the ring body 11 is rotatably provided with a plurality of connecting rods 2 19 , one end of the connecting rod 2 19 is rotatably provided with a connecting rod 18 , and one end of the connecting rod 18 is rotatably connected to one side of the connecting block 17 .

[0029] One end of connecting rod 2 19 is fixedly connected with gear 1 20, which is rotatably set on ring body 11, and the left end face of ring body 11 is rotatably set with gear ring 12, and the inner ring of gear ring 12 is intermittently set with gear blocks, gear 1 20 and the gear blocks of the inner ring of gear ring 12 are meshed with each other, and one side of the left end face of ring body 11 is fixedly connected with motor 21, and the output end of motor 21 is fixedly connected with one end of connecting rod 2 19.

[0030] A frame body 2 is fixedly connected to one side of the upper end surface of the welding table 1, and two slide rods 22 are slidably connected to both sides of the upper end of the frame body 2. A slide groove plate 23 is fixedly connected to the lower end of the slide rod 22, and an adjustment plate 26 is slidably connected to the inner side of the slide groove plate 23. Adjustment rods 15 are slidably connected to both sides of the adjustment plate 26. Two sliding columns 29 are slidably connected to the lower end of the adjustment rod 15, and one end of the sliding column 29 is fixedly connected to the L-shaped plate 14.

[0031] An electric push rod 15 is fixedly connected to one side of the upper end surface of the frame 2, and the piston end of the electric push rod 15 is fixedly connected to one side of the upper end surface of the slide plate 23. A threaded rod 25 is threadedly connected to one side of the upper end of the adjustment plate 26, and both ends of the threaded rod 25 are rotatably set on the slide plate 23. A motor 3 24 is fixedly connected to one end of the slide plate 23, and the output end of the motor 3 24 is fixedly connected to one end of the threaded rod 25. A bidirectional threaded rod 27 is threadedly connected to the upper end of the adjusting rod 15, and both ends of the bidirectional threaded rod 27 are rotatably set on the adjusting plate 26. A motor 4 28 is fixedly connected to one end of the adjusting plate 26, and the output end of the motor 4 28 is fixedly connected to one end of the bidirectional threaded rod 27. A spring 30 is sleeved on one side of the sliding column 29, and one end of the spring 30 is fixedly connected to one side of the L-shaped plate 14, and the other end is fixedly connected to one side of the adjusting rod 15.

[0032] A support plate 6 is fixedly connected to one side of the upper end surface of the welding table 1, a rack rod 31 is slidably connected to one side of the upper end of the support plate 6, a collection box 1 43 is fixedly connected to one end of the lower side of the rack rod 31, and collection boxes 2 44 are slidably connected to both sides of the collection box 1 43.

[0033] A plurality of tooth blocks are arranged on the upper side of the rack rod 31, a gear three 42 is rotatably arranged on the front end of the upper side of the support plate 6, the gear three 42 is meshed with the tooth blocks on the rack rod 31, a motor seven 41 is fixedly connected to the front side of the upper end of the support plate 6, the output end of the motor seven 41 is fixedly connected to the gear three 42, an electric push rod three 45 is fixedly connected to one side of the lower end surface of the collecting box one 43, the piston end of the electric push rod three 45 is fixedly connected to the connecting plate 34, connecting rod three 46 are rotatably arranged on both sides of the upper end surface of the connecting plate 34, and one end of the connecting rod three 46 is rotatably connected to one end of the collecting box two 44.

[0034] Specifically, when the existing shell welding device of the excavator is used, when two hollow pipes of the same specification need to be welded together, during the welding process, sparks and welding slag will be generated at the welding point. When these sparks and welding slag splash around, they will not only pollute the surrounding working environment, but also adhere to the surface of the hollow pipe, and enter the inner surface of the pipe through the holes of the hollow pipe, thereby affecting the appearance quality of the hollow pipe. In addition, the welding slag splashed to the outer surface and inner surface of the hollow pipe is relatively scattered, which also increases the difficulty of subsequent cleaning. Therefore, in order to solve the above problems, when the present embodiment is in use, after the two hollow pipes are fixed and before the ends are fitted together, the motor 21 is used to drive the connecting rod 2 19 on one side to rotate, so that the gear 1 20 can be rotated. When the gear ring 12 rotates, multiple connecting rods 2 19 and the gear 1 20 rotate at the same time, and multiple concave rods 16 can slide radially at the same time under the action of the connecting rods 18 and 19. The fire-retardant cloth 13 can be stretched by pulling a corner of the fire-retardant cloth 13 by the connecting block 17, so that the through holes in the middle of the two fire-retardant cloths 13 become larger. At this time, the two hollow pipes are driven to approach each other until the ends fit together. At this time, the two fire-retardant cloths 13 are just on both sides of the fitting place of the two hollow pipes, and then the multiple connecting blocks 17 are driven to move at the same time to reduce the through holes in the middle of the fire-retardant cloth 13. Since the fire-retardant cloth 13 is elastic, the fire-retardant cloth 13 will be tightly attached to the outer wall of the hollow pipe. Then, according to the diameter of the pipe, the electric push rod 2 10 is used to drive the welding gun 8 to approach the joint of the two pipes, and the welding gun 8 can be used to perform welding work. At the same time, the motor 5 32 is used to drive the gear 2 33 to rotate, so that the rotating ring 36 can be rotated. The two pipes rotate at the same time, and the welding direction can be changed, so that the pipe joint can be welded around the pipe joint. In addition, since the fire-retardant cloth 13 is on both sides of the joint, the flying sparks and welding slag will be intercepted by the fire-retardant cloth 13, and the fire-retardant characteristics of the fire-retardant cloth 13 will not cause fire, thereby avoiding the sparks and welding slag from splashing around and polluting the surrounding environment. At the same time, since the fire-retardant cloth 13 is in close contact with the pipe surface, the welding slag will not splash to positions other than the pipe welding point, thereby ensuring the appearance quality of the pipe. In addition, since the welding slag is relatively concentrated, the difficulty of cleaning the residual welding slag on the pipe surface is also reduced later. After the two pipes are welded together, the two clamping blocks 38 on either side are driven to loosen the pipes, and then the two ring bodies 35 are driven to move simultaneously and away from each other. At this time, the two pipes welded together will move with the ring body 35. During the movement of the pipes, the surface of the pipes will scrape with the edge of the through hole of the fire-retardant cloth 13, and the welding slag will always stay between the two fire-retardant cloths 13 until the end of the pipe is completely separated from the fire-retardant cloth 13. At this time, the welding slag will fall downward and will only fall to the middle position of the welding table 1, and can be collected by a collection container. Therefore, after the two pipes are welded together, the welding slag remaining at the welding point can be separated from the pipe by scraping the pipe surface and the fire-retardant cloth 13, thereby realizing self-cleaning of the residual welding slag at the welding point, eliminating the process of manually cleaning the welding slag at the welding point, which is more convenient and labor-saving, and ensures the appearance quality of the pipe; Furthermore, since the pipe is hollow in design, when the pipe surface and the fire-retardant cloth 13 are scraped, the hole portion of the pipe will also pass between the two fire-retardant cloths 13, which will cause the welding slag above the pipe to easily fall into the pipe through the holes above the pipe, thereby causing the inner wall of the pipe to be contaminated by the welding slag. Therefore, in order to avoid this problem, during the process of the fire-retardant cloth 13 scraping the pipe surface, the motor 7 41 can be used to drive the gear 3 42 to rotate, so that the rack rod 31 moves horizontally, so that the collection box 1 43 extends into the inner cavity of the pipe, and the collection box 1 43 is just under the fire-retardant cloth 13, and according to the diameter of the pipe, the electric push rod 3 45 is used to drive the connecting plate 34 to move, so that the two connecting rods 3 46 rotate in different directions at the same time, so that the two collection boxes 2 44 are in the collection The two sides of the box 1 43 slide and approach the inner wall of the pipe. At this time, the welding slag falling through the holes above the pipe will fall into the collecting box 1 43 and the collecting box 2 44 for collection, while the welding slag attached to the lower part of the pipe will fall downward under the action of gravity and will not enter the inside of the pipe, thereby avoiding the situation that when the pipe surface and the fire-retardant cloth 13 form a scraping, the welding slag above the pipe falls into the inside of the pipe through the holes above the pipe, thereby causing the inner wall of the pipe to be contaminated by the welding slag. In addition, when the welding slag falls into the inside of the collecting box 1 43 and the collecting box 2 44, the collecting box 1 43 and the collecting box 2 44 are driven to move horizontally left and right to make the welding slag evenly distributed in the collecting box 1 43 and the collecting box 2 44, thereby avoiding the situation that the welding slag accumulates in the same place and causes overflow; Since the two fire-retardant cloths 13 intercept the welding slag, the intercepting surface of the fire-retardant cloth 13 will inevitably be stained with welding slag. In subsequent use, these welding slags may fall from the surface of the fire-retardant cloth 13 to the surface of the pipe, thereby affecting the welding effect. Therefore, in order to avoid this situation, when the pipe is separated from the fire-retardant cloth 13, the motor three 24 drives the threaded rod 25 to rotate, so that the adjustment plate 26 moves horizontally, so that the two fire-retardant cloths 13 are alternately located between the two L-shaped plates 14, and then the electric push rod one 5 is used to drive the two L-shaped plates 14 to descend. At the same time, the motor four 28 is used to drive the two-way threaded rod two 27 to rotate, so that the two adjustment rods 15 can be close to each other at the same time, and with the cooperation of the sliding column 29 and the spring 30, the edges of the two L-shaped plates 14 are tightly attached to the surface of the fire-retardant cloth 13, and then the two L-shaped plates 14 are moved horizontally. By driving the two L-shaped plates 14 to descend with the electric push rod 15, the L-shaped plates 14 can be used to scrape the surface of the fire-retardant cloth 13, so that the welding slag attached to the surface of the fire-retardant cloth 13 falls off, thereby achieving the cleaning effect of the interception surface of the fire-retardant cloth 13, and avoiding the situation in which the welding slag falls from the surface of the fire-retardant cloth 13 to the surface of the pipeline during the subsequent use of the fire-retardant cloth 13, thereby affecting the welding effect. In addition, before the L-shaped plates 14 scrape the surface of the fire-retardant cloth 13, the connecting blocks 17 can be used to stretch the fire-retardant cloth 13. After the fire-retardant cloth 13 is stretched, the gaps between the fibers will become larger, which helps to reduce the friction resistance between the L-shaped plates 14 and the cloth surface. The smaller resistance makes the scraping process smoother and can effectively avoid unnecessary damage to the fire-retardant cloth 13.

[0035] Working principle: Place two pipes of the same specification between the two clamping blocks 38 on both sides, and then use the motor 6 40 to drive the two-way threaded rod 3 39 to rotate, so that the two clamping blocks 38 can be close to each other to clamp the ends of the pipes, and then use the motor 1 3 to drive the two-way threaded rod 1 4 to rotate, so that the ring bodies 2 35 on both sides can slide simultaneously and approach each other until the ends of the two pipes fit together, and then welding can be carried out, thereby ensuring the stability of the pipe welding process. When the two hollow pipes are fixed and the ends fit together, use the motor 21 to drive the connecting rod 2 19 on one side to rotate, so that the gear 1 20 can rotate. When the ring gear 12 rotates, multiple connecting rods 2 1 9 and gear 1 20 rotate simultaneously, and under the action of connecting rod 1 18 and connecting rod 2 19, multiple concave rods 16 can slide radially at the same time, and the fire-retardant cloth 13 can be stretched by pulling a corner of the fire-retardant cloth 13 through the connecting block 17, so that the through holes in the middle of the two fire-retardant cloths 13 become larger. At this time, the two hollow pipes are driven to approach each other until the ends are fitted. At this time, the two fire-retardant cloths 13 are just on both sides of the fitting of the two hollow pipes, and then the multiple connecting blocks 17 are driven to move simultaneously to reduce the through holes in the middle of the fire-retardant cloth 13. Since the fire-retardant cloth 13 is elastic, the fire-retardant cloth 13 will be tightly attached to the outer wall of the hollow pipe; Then, according to the diameter of the pipeline, the electric push rod 2 10 is used to drive the welding gun 8 to approach the joint of the two pipelines, and the welding gun 8 can be used to perform welding work. At the same time, the motor 5 32 is used to drive the gear 2 33 to rotate, so that the rotating ring 36 can be rotated. The two pipelines rotate at the same time, and the welding direction can be changed, so that the pipeline joint can be welded around the whole circle. In addition, since the fire-retardant cloth 13 is on both sides of the joint, the flying sparks and welding slag will be intercepted by the fire-retardant cloth 13, and the fire-retardant characteristics of the fire-retardant cloth 13 will not cause fire, thereby avoiding the sparks and welding slag splashing to the surrounding area and polluting the surrounding environment. At the same time, since the fire-retardant cloth 13 is in close contact with the pipeline surface, the welding slag will not splash to positions other than the pipeline welding point, thereby ensuring the appearance quality of the pipeline. In addition, since the welding slag is more concentrated, the subsequent cleaning of the residual welding slag on the pipeline surface is also reduced. The difficulty; when the two pipes are welded together, the two clamping blocks 38 on either side are driven to loosen the pipes, and then the two ring bodies 35 are driven to move simultaneously and away from each other. At this time, the two pipes welded together will follow the ring body 35 to move. During the movement of the pipes, their surfaces will scrape with the edges of the through holes of the fire-retardant cloth 13, and the welding slag will always stay between the two fire-retardant cloths 13 until the end of the pipe is completely separated from the fire-retardant cloth 13. At this time, the welding slag will fall downward and will only fall to the middle position of the welding table 1, and can be collected by a collection container. Therefore, after the two pipes are welded together, the welding slag remaining at the welding point can be separated from the pipe by scraping the pipe surface and the fire-retardant cloth 13, thereby realizing the self-cleaning of the residual welding slag at the welding point, eliminating the process of manually cleaning the welding slag at the welding point, which is more convenient and labor-saving, and ensures the appearance quality of the pipe.Furthermore, since the pipe is hollow in design, when the pipe surface and the fire-retardant cloth 13 are scraped, the hole portion of the pipe will also pass between the two fire-retardant cloths 13, which will cause the welding slag above the pipe to easily fall into the pipe through the holes above the pipe, thereby causing the inner wall of the pipe to be contaminated by the welding slag. Therefore, in order to avoid this problem, during the process of the fire-retardant cloth 13 scraping the pipe surface, the motor 7 41 can be used to drive the gear 3 42 to rotate, so that the rack rod 31 moves horizontally, so that the collection box 1 43 extends into the inner cavity of the pipe, and the collection box 1 43 is just under the fire-retardant cloth 13, and according to the diameter of the pipe, the electric push rod 3 45 is used to drive the connecting plate 34 to move, so that the two connecting rods 3 46 rotate in different directions at the same time, so that the two collection boxes 2 44 are in the collection The two sides of the box 1 43 slide and approach the inner wall of the pipe. At this time, the welding slag falling through the holes above the pipe will fall into the collecting box 1 43 and the collecting box 2 44 for collection, while the welding slag attached to the lower part of the pipe will fall downward under the action of gravity and will not enter the inside of the pipe, thereby avoiding the situation that when the pipe surface and the fire-retardant cloth 13 form a scraping, the welding slag above the pipe falls into the inside of the pipe through the holes above the pipe, thereby causing the inner wall of the pipe to be contaminated by the welding slag. In addition, when the welding slag falls into the inside of the collecting box 1 43 and the collecting box 2 44, the collecting box 1 43 and the collecting box 2 44 are driven to move horizontally left and right to make the welding slag evenly distributed in the collecting box 1 43 and the collecting box 2 44, thereby avoiding the situation that the welding slag accumulates in the same place and causes overflow;Since the two fire-retardant cloths 13 intercept the welding slag, the intercepting surface of the fire-retardant cloth 13 will inevitably be stained with welding slag. In subsequent use, these welding slags may fall from the surface of the fire-retardant cloth 13 to the surface of the pipe, thereby affecting the welding effect. Therefore, in order to avoid this situation, when the pipe is separated from the fire-retardant cloth 13, the motor three 24 drives the threaded rod 25 to rotate, so that the adjustment plate 26 moves horizontally, so that the two fire-retardant cloths 13 are alternately located between the two L-shaped plates 14, and then the electric push rod one 5 is used to drive the two L-shaped plates 14 to descend. At the same time, the motor four 28 is used to drive the two-way threaded rod two 27 to rotate, so that the two adjustment rods 15 can be close to each other at the same time, and with the cooperation of the sliding column 29 and the spring 30, the edges of the two L-shaped plates 14 are tightly attached to the surface of the fire-retardant cloth 13, and then the two L-shaped plates 14 are moved horizontally. By driving the two L-shaped plates 14 downward with the electric push rod 15, the L-shaped plates 14 can be used to scrape the surface of the fireproof and flame-retardant cloth 13, so that the welding slag attached to the surface of the fireproof and flame-retardant cloth 13 falls off, thereby achieving the cleaning effect of the interception surface of the fireproof and flame-retardant cloth 13, and avoiding the situation that the welding slag falls to the surface of the pipeline through the surface of the fireproof and flame-retardant cloth 13 during the subsequent use of the fireproof and flame-retardant cloth 13, thereby affecting the welding effect. In addition, before the L-shaped plates 14 scrape the surface of the fireproof and flame-retardant cloth 13, the fireproof and flame-retardant cloth 13 can be stretched by the connecting block 17. After the fireproof and flame-retardant cloth 13 is stretched, the gaps between its fibers will become larger, which helps to reduce the friction resistance between the L-shaped plates 14 and the cloth surface. The smaller resistance makes the scraping process smoother and can effectively avoid unnecessary damage to the fireproof and flame-retardant cloth 13. ;

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An excavator casing welding device, comprising a welding table (1), characterized in that: A fixed plate (7) is fixedly connected to the middle of the front side of the upper end face of the welding platform (1), two slide bars (9) are slidably connected to the upper side of the fixed plate (7), one end of the slide bar (9) is fixedly connected to a welding gun (8), both sides of the upper end face of the welding platform (1) are slidably connected to a ring body (35), the inner ring of the ring body (35) is rotatably provided with a rotating ring (36), both sides of the inner ring of the rotating ring (36) are fixedly connected to slide bars (37), and both sides of the slide bars (37) are slidably connected to clamping blocks (38), and the welding platform (1) is also provided with an elastically wrapped anti-splashing mechanism for preventing sparks and welding slag from splashing to the surrounding during welding; The elastically wrapped splash-proof mechanism comprises a ring body (11) fixedly connected to one side of the front end surface of the frame body (2); a plurality of concave rods (16) are radially inserted and slidably connected to the ring body (11); both ends of the concave rods (16) are fixedly connected to connecting blocks (17); one end of the connecting block (17) is fixedly connected to a fireproof and flame-retardant cloth (13); a through hole is provided in the middle of the fireproof and flame-retardant cloth (13); and since the fireproof and flame-retardant cloth (13) has a certain elasticity, the fireproof and flame-retardant cloth (13) can be stretched by simultaneously driving the four concave rods (16) to slide radially, so as to adjust its size.

2. The excavator casing welding device according to claim 1, characterized in that: One end of the clamping block (38) is threadedly connected to a bidirectional threaded rod (39), both ends of the bidirectional threaded rod (39) are rotatably arranged on the rotating ring (36), one side of the inner ring of the rotating ring (36) is fixedly connected to a motor (40), and the output end of the motor (40) is fixedly connected to one end of the bidirectional threaded rod (39).

3. The excavator casing welding device according to claim 1, characterized in that: The lower end of the ring body 2 (35) is threadedly connected to a bidirectional threaded rod 1 (4), both ends of the bidirectional threaded rod 1 (4) are rotatably arranged on the welding table (1), and a motor 1 (3) is fixedly connected to one side of the upper end surface of the welding table (1), and the output end of the motor 1 (3) is fixedly connected to one end of the bidirectional threaded rod 1 (4).

4. The excavator casing welding device according to claim 1, characterized in that: The outer ring of the rotating ring (36) is provided with a plurality of tooth blocks, one side of the ring body 2 (35) is rotatably provided with a gear 2 (33), the gear 2 (33) and the tooth blocks of the outer ring of the rotating ring (36) are meshed with each other, one side of the ring body 2 (35) is fixedly connected to a motor 5 (32), the output end of the motor 5 (32) is fixedly connected to the gear 2 (33), the upper side of the front end surface of the fixed plate (7) is fixedly connected to an electric push rod 2 (10), and the piston end of the electric push rod 2 (10) is fixedly connected to one side of the welding gun (8).

5. The excavator casing welding device according to claim 1, characterized in that: The left end surface of the ring body 1 (11) is rotatably provided with a plurality of connecting rods 2 (19), one end of the connecting rod 2 (19) is rotatably provided with a connecting rod 1 (18), and one end of the connecting rod 1 (18) is rotatably connected to one side of the connecting block (17).

6. The excavator casing welding device according to claim 5, characterized in that: One end of the second connecting rod (19) is fixedly connected to a gear one (20), and the gear one (20) is rotatably arranged on the ring body one (11). A gear ring (12) is rotatably arranged on the left end surface of the ring body one (11), and tooth blocks are intermittently arranged on the inner ring of the gear ring (12). The gear one (20) and the tooth blocks on the inner ring of the gear ring (12) are meshed with each other. One side of the left end surface of the ring body one (11) is fixedly connected to a motor two (21), and the output end of the motor two (21) is fixedly connected to one end of the second connecting rod (19).

7. The excavator casing welding device according to claim 1, characterized in that: One side of the upper end surface of the welding table (1) is fixedly connected to a frame body (2), both sides of the upper end of the frame body (2) are slidably connected to two slide bars (22), the lower ends of the two slide bars (22) are fixedly connected to a slide groove plate (23), the inner side of the slide groove plate (23) is slidably connected to an adjustment plate (26), both sides of the adjustment plate (26) are slidably connected to adjustment rods (15), the lower end of the adjustment rod (15) is slidably connected to two slide columns (29), and one end of the slide column (29) is fixedly connected to an L-shaped plate (14).

8. The excavator casing welding device according to claim 7, characterized in that: An electric push rod (5) is fixedly connected to one side of the upper end surface of the frame (2), and a piston end of the electric push rod (5) is fixedly connected to one side of the upper end surface of the slide plate (23). A threaded rod (25) is threadedly connected to one side of the upper end of the adjustment plate (26), and both ends of the threaded rod (25) are rotatably arranged on the slide plate (23). One end of the slide plate (23) is fixedly connected to a motor (24), and an output end of the motor (24) is fixedly connected to one end of the threaded rod (25). The adjustment rod (1 5) The upper end is threadedly connected to a bidirectional threaded rod (27), both ends of the bidirectional threaded rod (27) are rotatably arranged on the adjustment plate (26), one end of the adjustment plate (26) is fixedly connected to a motor (28), the output end of the motor (28) is fixedly connected to one end of the bidirectional threaded rod (27), one side of the sliding column (29) is sleeved with a spring (30), one end of the spring (30) is fixedly connected to one side of the L-shaped plate (14), and the other end is fixedly connected to one side of the adjustment rod (15).

9. The excavator casing welding device according to claim 1, characterized in that: A support plate (6) is fixedly connected to one side of the upper end surface of the welding table (1), a rack rod (31) is slidably connected to one side of the upper end of the support plate (6), a collection box 1 (43) is fixedly connected to one end of the lower side of the rack rod (31), and collection boxes 2 (44) are slidably connected to both sides of the collection box 1 (43).

10. The excavator casing welding device according to claim 9, characterized in that: A plurality of tooth blocks are arranged on the upper side of the rack rod (31); a gear three (42) is rotatably arranged on the front end of the upper side of the support plate (6); the gear three (42) and the tooth blocks on the rack rod (31) are meshed with each other; a motor seven (41) is fixedly connected to the front side of the upper end of the support plate (6); the output end of the motor seven (41) is fixedly connected to the gear three (42); an electric push rod three (45) is fixedly connected to one side of the lower end surface of the collection box one (43); the piston end of the electric push rod three (45) is fixedly connected to the connecting plate (34); connecting rod three (46) are rotatably arranged on both sides of the upper end surface of the connecting plate (34); one end of the connecting rod three (46) is rotatably connected to one end of the collection box two (44).

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