Simple auxiliary welding device for oxygen lance body

Abstract

The invention relates to the technical field of welding, in particular to an oxygen lance body simple welding auxiliary device which comprises a base, a positioning mechanism, a welding mechanism and a driving mechanism. The positioning mechanism comprises an L-shaped fixing plate fixedly arranged on the upper surface of the base and a sliding plate arranged on the upper surface of the base in a sliding mode. The driving mechanism comprises a first rotating shaft and a second rotating shaft which are rotationally arranged on the surfaces of the sliding plate and the L-shaped fixing plate respectively, first transmission wheels are fixedly arranged on the surfaces of the first rotating shaft and the second rotating shaft, and second transmission wheels are fixedly arranged on the surfaces of the first positioning pipe and the second positioning pipe; through the arrangement of the positioning mechanism and the driving mechanism, in the actual use process of the device, the oxygen lance body steel pipe can move and be aligned with the end of a steel pipe needing to be welded, meanwhile, the oxygen lance body steel pipe and the steel pipe needing to be welded can be driven to rotate at the same time, the purpose of automatic surrounding welding is achieved, the welding efficiency is effectively improved, and the labor intensity of workers is lowered. And meanwhile, the welding quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a simple welding auxiliary device for an oxygen lance body. Background Art

[0002] The oxygen lance body is the main body of the oxygen lance, a key piece of equipment used for blowing oxygen into steelmaking converters. Designed as a three-layer structure, each layer functions through a different fluid. Oxygen lances are used for blowing oxygen in steelmaking and are typically constructed from small-diameter welded steel pipes in eight sizes, ranging from 3 / 8-inch to 2-inch, made from 08, 10, 15, 20, or Q195-Q235 steel strip.

[0003] During the production process of the oxygen blowing tube gun body, in order to adapt to different oxygen blowing needs, the length of the oxygen blowing tube needs to be welded and lengthened according to actual conditions. Traditional welding methods usually use manual welding. During welding, personnel need to hold the welding gun around the connection of the two steel pipes for welding, and also need to manually rotate the two steel pipes. During the manual rotation process, the connection of the two steel pipes is prone to misalignment, which affects the quality of welding, and the manual welding method reduces work efficiency.

[0004] To this end, the present invention provides a simple welding auxiliary device for an oxygen lance body. Summary of the Invention

[0005] The purpose of the present invention is to solve at least one technical problem raised in the background technology.

[0006] The present invention provides a simple welding auxiliary device for an oxygen lance body, comprising a base, a positioning mechanism, a welding mechanism and a driving mechanism;

[0007] The positioning mechanism includes an L-shaped fixed plate fixed on the upper surface of the base, and a sliding plate slidably arranged on the upper surface of the base. The surfaces of the sliding plate and the L-shaped fixed plate are both provided with rotating holes, and the inner walls of the two rotating holes are respectively provided with a first positioning tube and a second positioning tube rotatably arranged through bearings;

[0008] The welding mechanism includes a first hydraulic rod fixed to the inner top wall of the L-shaped fixed plate, and a mounting seat fixed to the telescopic end of the first hydraulic rod, wherein the bottom end of the mounting seat is fixed with a welding gun;

[0009] The driving mechanism includes a first rotating shaft and a second rotating shaft which are respectively rotatably arranged on the surfaces of the sliding plate and the L-shaped fixed plate, a first transmission wheel is fixedly provided on the surfaces of the first rotating shaft and the second rotating shaft, a second transmission wheel is fixedly provided on the surfaces of the first positioning tube and the second positioning tube, and a transmission belt is sleeved on the surfaces of the first transmission wheel and the second transmission wheel, and the driving mechanism also includes a driving motor fixedly arranged on the side of the sliding plate for driving the first rotating shaft to rotate.

[0010] Preferably, the inner walls of the first positioning tube and the second positioning tube are each embedded with three electric push rods in a circular array, and the telescopic ends of the three electric push rods are each fixed with a corresponding arc-shaped positioning strip.

[0011] By adopting the above technical solution, the three electric push rods can be extended at the same time, driving the three arc-shaped positioning strips to move toward the middle at the same time, thereby fixing the steel pipe at the center position of the first positioning pipe and the second positioning pipe.

[0012] Preferably, a square rod is fixedly provided at the end of the second rotating shaft, and a cylindrical square groove is provided at the end of the first rotating shaft for sliding connection with the outer surface of the square rod.

[0013] By adopting the above technical solution, the square rod can be driven to slide on the inner wall of the cylindrical square groove during the movement of the sliding plate, so that the second rotating shaft can be driven to rotate synchronously through the rotation of the first rotating shaft.

[0014] Preferably, a rectangular groove is provided on the upper surface of the base, a limiting rod is fixed on the inner wall of the rectangular groove, the bottom end of the sliding plate is slidably connected to the inner wall of the rectangular groove, and a through hole is provided on the side of the sliding plate which is slidably connected to the outer surface of the limiting rod, two symmetrical connecting plates are fixed on the upper surface of the base, and mounting ears corresponding to the connecting plates are fixed on the front and back sides of the sliding plates, a second hydraulic rod is fixed on the surface of the connecting plate, and the telescopic end of the second hydraulic rod is fixedly connected to the surface of the mounting ear.

[0015] By adopting the above technical solution, the sliding plate can be automatically moved by the extension of the second hydraulic rod. At the same time, during the movement, the stability of the sliding plate can be effectively guaranteed under the action of the limit rod and the rectangular groove.

[0016] Preferably, the inner top wall of the L-shaped fixed plate is provided with a purification component for purifying welding fumes during welding, and the purification component includes a purification cylinder fixed to the side of the L-shaped fixed plate through a mounting column, the inner wall of the purification cylinder is filled with activated carbon particles, and the air inlet end of the purification cylinder is provided with a smoking pipe passing through the L-shaped fixed plate, and the end of the smoking pipe away from the purification cylinder is provided with a smoking hood.

[0017] By adopting the above technical solution, the fume generated by welding can be sucked into the purification cylinder through the smoking pipe, and purified by the activated carbon particles in the purification cylinder before being discharged, thereby achieving the purpose of purifying the welding fume.

[0018] Preferably, the purification component also includes a fixed tube fixed on the side of the L-shaped fixed plate, the interior of the fixed tube is provided with an suction fan blade, and the outer surface of the fixed tube is provided with an intake pipe, one end of the intake pipe extends to the interior of the fixed tube, and the other end of the intake pipe extends to the interior of the purification cylinder.

[0019] By adopting the above technical solution, the interior of the purification cylinder can be sucked in through the suction pipe by the rotation of the suction fan blades, thereby realizing automatic absorption of welding fume.

[0020] Preferably, one end of the second rotating shaft extends to the interior of the fixed tube and is fixedly provided with a rotating rod, the suction fan blades are fixedly provided at the end of the rotating rod, and a ventilation net is fixedly provided on the inner wall of the end of the fixed tube.

[0021] By adopting the above technical solution, the rotation of the second rotating shaft can drive the rotating rod to rotate, thereby driving the suction fan blades to rotate automatically.

[0022] Preferably, the inner top wall of the L-shaped fixed plate is provided with a grinding assembly, and the grinding assembly includes a rectangular box fixed on the inner top wall of the L-shaped fixed plate, and a sliding hole opened on the front of the rectangular box, the inner wall of the sliding hole is slidably provided with a sliding column, and the end of the sliding column is fixed with a grinding block.

[0023] By adopting the above technical solution, the purpose of fully grinding the joint after welding can be achieved by using the grinding block.

[0024] Preferably, a pressing spring is sleeved on the outer surface of the sliding column, one end of the pressing spring is fixedly connected to the surface of the grinding block, and the other end of the pressing spring is fixedly connected to the surface of the rectangular box.

[0025] By adopting the above technical solution, the grinding block can be fully pressed against the welding position under the action of the pressing spring.

[0026] Preferably, a rectangular opening is provided on the front of the rectangular box, and a first guide roller and a second guide roller are rotatably provided on the inner wall of the rectangular box. A pull rope is fixed to the other end of the sliding column, and the end of the pull rope away from the sliding column is guided by the first guide roller and the second guide roller respectively, passes through the rectangular opening and is fixedly connected to the surface of the mounting seat.

[0027] By adopting the above technical solution, the pull rope can be pulled when the welding gun moves downward, thereby pulling the sliding column and moving the grinding block away from the welding position. At the same time, the pull rope can be loosened when the welding gun moves upward. At this time, under the action of the tightening spring, the grinding block can be pressed against the welding position to achieve the purpose of automatic switching grinding. At the same time, the pull rope can be guided under the action of the first guide roller and the second guide roller, thereby facilitating the smooth pulling of the sliding column.

[0028] In summary, the present invention includes at least one of the following beneficial technical effects:

[0029] 1. The simple welding auxiliary device for the oxygen lance body described in the present invention is provided with a positioning mechanism and a driving mechanism. When the device is actually used, the steel pipe of the oxygen lance body can be moved and aligned with the end of the steel pipe to be welded. At the same time, the steel pipe of the oxygen lance body and the steel pipe to be welded can be driven to rotate simultaneously, thereby achieving the purpose of automatic surrounding welding, effectively improving the welding efficiency, and ensuring the welding quality.

[0030] 2. The simple welding auxiliary device for an oxygen lance body described in the present invention is configured with a purification component. During the process of simultaneously rotating the oxygen lance body steel pipe and the steel pipe to be welded by the rotation of the driving motor, the rotation of the second rotating shaft can drive the rotation of the rotating rod. The rotation of the rotating rod drives the rotation of the suction fan blades. The rotation of the suction fan blades draws air into the interior of the purification cylinder through the suction pipe, so that the purification cylinder automatically absorbs the fume generated by welding through the smoking pipe, and the fume is purified by the activated carbon particles in the purification cylinder and discharged, thereby achieving the purpose of automatically absorbing and treating the welding fume.

[0031] 3. The simple welding auxiliary device for the oxygen lance body described in the present invention is equipped with a grinding component, so that during actual use of the device, when it is necessary to grind the connection between the steel pipe of the oxygen lance body after welding and the steel pipe to be welded, the first hydraulic rod can be activated to contract, driving the mounting seat and the welding gun to move upward. The upward movement of the mounting seat realizes the loosening of the pull rope. At this time, the grinding block can pop outward under the action of the tightening spring and contact the connection between the steel pipe of the oxygen lance body and the steel pipe to be welded. At the same time, the driving motor is started to achieve the purpose of automatic grinding of the weld, thereby further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a front view structural schematic diagram of the present invention;

[0034] Figure 3 It is a side structural schematic diagram of the present invention;

[0035] Figure 4 It is a rear view structural schematic diagram of the present invention;

[0036] Figure 5 It is a schematic cross-sectional structure diagram of the first rotating shaft and the fixed cylinder of the present invention;

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of a rectangular box of the present invention;

[0038] Figure 7 This invention Figure 6 Enlarged structural diagram at point A in the middle.

[0039] Description of reference numerals:

[0040] 100, base;

[0041] 200, positioning mechanism; 201, L-shaped fixing plate; 202, sliding plate; 203, first positioning tube; 204, second positioning tube; 205, electric push rod; 206, arc-shaped positioning strip; 207, limiting rod; 208, mounting ear; 209, second hydraulic rod;

[0042] 300, welding mechanism; 301, first hydraulic rod; 302, mounting base; 303, welding gun;

[0043] 400, driving mechanism; 401, first rotating shaft; 402, second rotating shaft; 403, first transmission wheel; 404, second transmission wheel; 405, transmission belt; 406, driving motor; 407, square rod; 408, cylindrical square groove;

[0044] 500, purification component; 501, purification cylinder; 502, smoking pipe; 503, fixed pipe; 504, suction fan blade; 505, suction pipe; 506, rotating rod; 507, ventilation net;

[0045] 600, grinding assembly; 601, rectangular box; 602, sliding column; 603, grinding block; 604, holding spring; 605, first guide roller; 606, second guide roller; 607, pull rope. DETAILED DESCRIPTION

[0046] The following combination Figures 1 to 7 , the present invention is described in further detail.

[0047] Example 1

[0048] Please pay attention to Figures 1 to 5, a simple welding auxiliary device for an oxygen lance body, comprising a base 100, a positioning mechanism 200, a welding mechanism 300 and a driving mechanism 400; the positioning mechanism 200 comprises an L-shaped fixing plate 201 fixed on the upper surface of the base 100, and a sliding plate 202 slidably arranged on the upper surface of the base 100, the surfaces of the sliding plate 202 and the L-shaped fixing plate 201 are both provided with rotating holes, and the inner walls of the two rotating holes are respectively provided with a first positioning tube 203 and a second positioning tube 204 rotatably arranged through bearings; the welding mechanism 300 comprises a first hydraulic rod 301 fixed on the inner top wall of the L-shaped fixing plate 201, and a telescopic shaft fixed on the first hydraulic rod 301 The mounting base 302 at the end, and the bottom end of the mounting base 302 is fixed with a welding gun 303; the driving mechanism 400 includes a first rotating shaft 401 and a second rotating shaft 402 which are respectively rotatably arranged on the surfaces of the sliding plate 202 and the L-shaped fixed plate 201, the surfaces of the first rotating shaft 401 and the second rotating shaft 402 are both fixed with a first transmission wheel 403, the surfaces of the first positioning tube 203 and the second positioning tube 204 are both fixed with a second transmission wheel 404, the surfaces of the first transmission wheel 403 and the second transmission wheel 404 are sleeved with a transmission belt 405, and the driving mechanism 400 also includes a driving motor 406 fixed on the side of the sliding plate 202 for driving the first rotating shaft 401 to rotate.

[0049] Please refer to Figure 3 , Figure 4 The inner walls of the first positioning tube 203 and the second positioning tube 204 are both embedded with three electric push rods 205 in a circular array, and the telescopic ends of the three electric push rods 205 are all fixed with corresponding arc-shaped positioning strips 206.

[0050] Specifically, the three electric push rods 205 can be extended simultaneously to drive the three arc-shaped positioning bars 206 to move toward the middle at the same time, so that the steel pipe can be fixed at the center position of the first positioning tube 203 and the second positioning tube 204.

[0051] Please refer to Figure 2 , Figure 5 A square rod 407 is fixed to the end of the second rotating shaft 402, and a cylindrical square groove 408 is opened at the end of the first rotating shaft 401 to be slidably connected to the outer surface of the square rod 407.

[0052] Specifically, during the movement of the sliding plate 202 , the square rod 407 can be driven to slide on the inner wall of the cylindrical square groove 408 , so that the second rotating shaft 402 can be driven to rotate synchronously through the rotation of the first rotating shaft 401 .

[0053] Please refer to Figure 1 , Figure 2A rectangular groove is provided on the upper surface of the base 100, and a limiting rod 207 is fixed to the inner wall of the rectangular groove. The bottom end of the sliding plate 202 is slidably connected to the inner wall of the rectangular groove, and a through hole is provided on the side of the sliding plate 202 that is slidably connected to the outer surface of the limiting rod 207. Two symmetrical connecting plates are fixed on the upper surface of the base 100, and the front and back sides of the sliding plate 202 are fixed with mounting ears 208 corresponding to the connecting plates. A second hydraulic rod 209 is fixed on the surface of the connecting plate, and the telescopic end of the second hydraulic rod 209 is fixedly connected to the surface of the mounting ear 208.

[0054] Specifically, the sliding plate 202 can be automatically moved by the extension of the second hydraulic rod 209 . Meanwhile, during the movement, the stability of the sliding plate 202 can be effectively guaranteed under the action of the limiting rod 207 and the rectangular groove.

[0055] In this embodiment, by providing the positioning mechanism 200 and the driving mechanism 400, the device can, during actual use, first place the steel pipe to be welded into the second positioning tube 204, align one end of the steel pipe to be welded with the head of the welding gun 303, and start the three electric push rods 205 on the second positioning tube 204 to drive the three arc-shaped positioning bars 206 to fix the steel pipe to be welded at the center position in the second positioning tube 204, then insert the oxygen lance gun body steel pipe into the first positioning tube 203, and start the three electric push rods 205 on the first positioning tube 203 to fix the oxygen lance gun body steel pipe at the center position in the first positioning tube 203, then start the second hydraulic rod 209 to extend, drive the sliding plate 202 to move, move the oxygen lance gun body steel pipe, and align it with the end of the steel pipe to be welded, and start the first hydraulic rod 301 to drive the end of the welding gun 303 to align with the oxygen lance gun body steel pipe. The pipe contacts the connection of the steel pipe to be welded and is welded, and during the welding process, the driving motor 406 is started, and the rotation of the driving motor 406 drives the first rotating shaft 401 to rotate, and the rotation of the first rotating shaft 401 drives the square rod 407 to rotate, and drives the second rotating shaft 402 to rotate, so that the first rotating shaft 401 and the second rotating shaft 402 rotate synchronously, and the rotation of the first rotating shaft 401 and the second rotating shaft 402 drives the two first transmission wheels 403 to rotate, and the rotation of the two first transmission wheels 403 drives the two second transmission wheels 404 to rotate through the two transmission belts 405, so that the first positioning pipe 203 and the second positioning pipe 204 can be driven to rotate synchronously through the rotation of the first rotating shaft 401 and the second rotating shaft 402, thereby driving the oxygen lance gun body steel pipe and the steel pipe to be welded to rotate at the same time, achieving the purpose of automatic surrounding welding, effectively improving the welding efficiency, and ensuring the welding quality.

[0056] Example 2

[0057] Based on the first embodiment, and different from the first embodiment:

[0058] Please refer to Figure 1 , Figure 5 The inner top wall of the L-shaped fixed plate 201 is provided with a purification component 500 for purifying welding fume during welding. The purification component 500 includes a purification cylinder 501 fixed to the side of the L-shaped fixed plate 201 through a mounting column. The inner wall of the purification cylinder 501 is filled with activated carbon particles. The air inlet end of the purification cylinder 501 is provided with a smoking pipe 502 that passes through the L-shaped fixed plate 201, and a smoking hood is provided at the end of the smoking pipe 502 away from the purification cylinder 501.

[0059] Specifically, the fume generated by welding can be sucked into the purification cartridge 501 through the fume pipe 502 and purified by the activated carbon particles in the purification cartridge 501 before being discharged, thereby achieving the purpose of purifying the welding fume.

[0060] Please refer to Figure 1 , Figure 5 The purification component 500 also includes a fixed tube 503 fixed on the side of the L-shaped fixed plate 201, and an suction fan blade 504 is provided inside the fixed tube 503, and an air intake pipe 505 is provided on the outer surface of the fixed tube 503, one end of the air intake pipe 505 extends to the inside of the fixed tube 503, and the other end of the air intake pipe 505 extends to the inside of the purification cylinder 501.

[0061] Specifically, the interior of the purification cylinder 501 can be sucked in through the suction pipe 505 by the rotation of the suction fan blades 504, thereby achieving automatic absorption of welding fumes.

[0062] Please refer to Figure 1 , Figure 5 One end of the second rotating shaft 402 extends to the interior of the fixed tube 503 and is fixed with a rotating rod 506, the suction fan blade 504 is fixed to the end of the rotating rod 506, and a ventilation net 507 is fixed to the inner wall of the end of the fixed tube 503.

[0063] Specifically, the rotation of the second rotating shaft 402 can drive the rotating rod 506 to rotate, thereby driving the suction fan blades 504 to rotate automatically.

[0064] In this embodiment, by setting up a purification component 500, and then driving the oxygen lance body steel pipe and the steel pipe to be welded to rotate simultaneously through the rotation of the driving motor 406, the rotation of the second rotating shaft 402 can drive the rotating rod 506 to rotate, and the rotation of the rotating rod 506 drives the suction fan blades 504 to rotate. The rotation of the suction fan blades 504 sucks air into the interior of the purification cylinder 501 through the suction pipe 505, so that the purification cylinder 501 automatically absorbs the fume generated by welding through the smoking pipe 502, and the fume is purified by the activated carbon particles in the purification cylinder 501 and discharged, thereby achieving the purpose of automatically absorbing and treating the welding fume.

[0065] Example 3

[0066] Based on the first and second embodiments, and different from the first and second embodiments, the following are the differences:

[0067] Please refer to Figure 6 , Figure 7 A grinding assembly 600 is provided on the inner top wall of the L-shaped fixed plate 201. The grinding assembly 600 includes a rectangular box 601 fixed on the inner top wall of the L-shaped fixed plate 201, and a sliding hole opened on the front of the rectangular box 601. A sliding column 602 is slidingly provided on the inner wall of the sliding hole, and a grinding block 603 is fixed on the end of the sliding column 602.

[0068] Specifically, the grinding block 603 can be used to fully grind the joint after welding.

[0069] Please refer to Figure 6 , Figure 7 The outer surface of the sliding column 602 is provided with a tightening spring 604 , one end of the tightening spring 604 is fixedly connected to the surface of the grinding block 603 , and the other end of the tightening spring 604 is fixedly connected to the surface of the rectangular box 601 .

[0070] Specifically, under the action of the pressing spring 604 , the grinding block 603 can be pressed sufficiently against the welding position.

[0071] Please refer to Figure 6 , Figure 7 A rectangular opening is provided on the front of the rectangular box 601, and a first guide roller 605 and a second guide roller 606 are rotatably provided on the inner wall of the rectangular box 601. A pull rope 607 is fixed to the other end of the sliding column 602. The end of the pull rope 607 away from the sliding column 602 is guided by the first guide roller 605 and the second guide roller 606, and then passes through the rectangular opening and is fixedly connected to the surface of the mounting seat 302.

[0072] Specifically, when the welding gun 303 moves downward, the pull rope 607 can be pulled, thereby pulling the sliding column 602, so that the grinding block 603 is away from the welding position. At the same time, when the welding gun 303 moves upward, the pull rope 607 can be loosened. At this time, under the action of the tightening spring 604, the grinding block 603 can be pressed against the welding position to achieve the purpose of automatic switching grinding. At the same time, the pull rope 607 can be guided under the action of the first guide roller 605 and the second guide roller 606, thereby facilitating the smooth pulling of the sliding column 602.

[0073] In this embodiment, by providing a grinding assembly 600, when the device is actually used, when it is necessary to grind the connection between the oxygen lance body steel pipe after welding and the steel pipe to be welded, the first hydraulic rod 301 can be started to contract, driving the mounting seat 302 and the welding gun 303 to move upward. The upward movement of the mounting seat 302 realizes the relaxation of the pull rope 607. At this time, the grinding block 603 can pop outward under the action of the tightening spring 604 and contact the connection between the oxygen lance body steel pipe and the steel pipe to be welded. At the same time, the drive motor 406 is started to achieve the purpose of automatic grinding of the weld, which further improves work efficiency. Similarly, the connection can be ground by the welding gun, which further improves the quality of welding.

[0074] Working principle:

[0075] During actual use of the device, the steel pipe to be welded can be first placed in the second positioning tube 204, so that one end of the steel pipe to be welded is aligned with the head of the welding gun 303, and the three electric push rods 205 on the second positioning tube 204 are started to drive the three arc-shaped positioning bars 206 to fix the steel pipe to be welded at the center position in the second positioning tube 204. Then, the gun body steel pipe of the oxygen blowing pipe is inserted into the first positioning tube 203, and the three electric push rods 205 on the first positioning tube 203 are started to fix the oxygen blowing pipe gun body steel pipe at the center position in the first positioning tube 203. Then, the second hydraulic rod 209 is started to extend, driving the sliding plate 202 to move, so that the oxygen blowing pipe gun body steel pipe moves and is aligned with the end of the steel pipe to be welded. The first hydraulic rod 301 is started to drive the end of the welding gun 303 to contact the connection between the oxygen lance gun body steel pipe and the steel pipe to be welded and perform welding. In addition, during the welding process, the drive motor 406 is started. The rotation of the drive motor 406 drives the first rotating shaft 401 to rotate. The rotation of the first rotating shaft 401 drives the square rod 407 to rotate, and drives the second rotating shaft 402 to rotate, so that the first rotating shaft 401 and the second rotating shaft 402 rotate synchronously. The rotation of the first rotating shaft 401 and the second rotating shaft 402 drives the two first transmission wheels 403 to rotate. The rotation of the two first transmission wheels 403 drives the two second transmission wheels 404 to rotate through the two transmission belts 405, so that the rotation of the first rotating shaft 401 and the second rotating shaft 402 The first positioning tube 203 and the second positioning tube 204 are driven to rotate synchronously, and then the oxygen lance body steel pipe and the steel pipe to be welded are driven to rotate simultaneously, so as to achieve the purpose of automatic circumferential welding, effectively improve the efficiency of welding, and ensure the quality of welding; at the same time, in the process of driving the oxygen lance body steel pipe and the steel pipe to be welded to rotate simultaneously by the rotation of the driving motor 406, the rotation of the second rotating shaft 402 can drive the rotating rod 506 to rotate, and the rotation of the rotating rod 506 drives the suction fan blade 504 to rotate, and the rotation of the suction fan blade 504 sucks air into the interior of the purification cylinder 501 through the suction pipe 505, so that the purification cylinder 501 automatically absorbs the fume generated by welding through the smoking pipe 502 and is absorbed by the purification cylinder 501 The activated carbon particles in the pipe are purified and discharged, thereby achieving the purpose of automatically absorbing and treating the welding fume; and when it is necessary to grind the connection between the oxygen lance body steel pipe and the steel pipe to be welded after welding, the first hydraulic rod 301 can be started to contract, driving the mounting seat 302 and the welding gun 303 to move upward. The upward movement of the mounting seat 302 realizes the relaxation of the pull rope 607. At this time, the grinding block 603 can be ejected outward under the action of the tightening spring 604 and contact the connection between the oxygen lance body steel pipe and the steel pipe to be welded. At the same time, the drive motor 406 is started to achieve the purpose of automatically grinding the welding joint, further improving work efficiency. Similarly, the connection can be ground with the welding gun, further improving the quality of welding.

[0076] The embodiments of this specific embodiment are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Identical components are denoted by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A simple welding auxiliary device for an oxygen lance body, characterized in that: It comprises a base (100), a positioning mechanism (200), a welding mechanism (300) and a driving mechanism (400); The positioning mechanism (200) comprises an L-shaped fixed plate (201) fixed on the upper surface of the base (100), and a sliding plate (202) slidably arranged on the upper surface of the base (100); the surfaces of the sliding plate (202) and the L-shaped fixed plate (201) are both provided with rotating holes, and the inner walls of the two rotating holes are respectively provided with a first positioning tube (203) and a second positioning tube (204) rotatably arranged via bearings; The welding mechanism (300) comprises a first hydraulic rod (301) fixed to the inner top wall of the L-shaped fixed plate (201), and a mounting seat (302) fixed to the telescopic end of the first hydraulic rod (301), wherein a welding gun (303) is fixed to the bottom end of the mounting seat (302); The driving mechanism (400) comprises a first rotating shaft (401) and a second rotating shaft (402) which are rotatably arranged on the surfaces of the sliding plate (202) and the L-shaped fixed plate (201), respectively; a first transmission wheel (403) is fixedly arranged on the surfaces of the first rotating shaft (401) and the second rotating shaft (402); a second transmission wheel (404) is fixedly arranged on the surfaces of the first positioning tube (203) and the second positioning tube (204); a transmission belt (405) is sleeved on the surfaces of the first transmission wheel (403) and the second transmission wheel (404); and the driving mechanism (400) further comprises a driving motor (406) fixedly arranged on the side of the sliding plate (202) for driving the first rotating shaft (401) to rotate.

2. A simple welding auxiliary device for an oxygen lance body according to claim 1, characterized in that: The inner walls of the first positioning tube (203) and the second positioning tube (204) are both embedded with three electric push rods (205) in a circular array, and the telescopic ends of the three electric push rods (205) are all fixed with corresponding arc-shaped positioning strips (206).

3. The simple welding auxiliary device for an oxygen lance body according to claim 1, characterized in that: A square rod (407) is fixedly provided at the end of the second rotating shaft (402), and a columnar square groove (408) is provided at the end of the first rotating shaft (401) and is slidably connected to the outer surface of the square rod (407).

4. The simple welding auxiliary device for an oxygen lance body according to claim 1, characterized in that: A rectangular groove is provided on the upper surface of the base (100), a limiting rod (207) is fixedly provided on the inner wall of the rectangular groove, the bottom end of the sliding plate (202) is slidably connected to the inner wall of the rectangular groove, and a through hole is provided on the side of the sliding plate (202) for slidably connecting to the outer surface of the limiting rod (207), two symmetrical connecting plates are fixedly provided on the upper surface of the base (100), and mounting ears (208) corresponding to the connecting plates are fixedly provided on the front and back sides of the sliding plate (202), a second hydraulic rod (209) is fixedly provided on the surface of the connecting plate, and the telescopic end of the second hydraulic rod (209) is fixedly connected to the surface of the mounting ear (208).

5. The simple welding auxiliary device for an oxygen lance body according to claim 1, characterized in that: The inner top wall of the L-shaped fixing plate (201) is provided with a purification assembly (500) for purifying welding fume during welding. The purification assembly (500) includes a purification cylinder (501) fixed to the side of the L-shaped fixing plate (201) via a mounting column. The inner wall of the purification cylinder (501) is filled with activated carbon particles. The air inlet end of the purification cylinder (501) is provided with a smoking pipe (502) that passes through the L-shaped fixing plate (201). The end of the smoking pipe (502) away from the purification cylinder (501) is provided with a smoking hood.

6. A simple welding auxiliary device for an oxygen lance body according to claim 5, characterized in that: The purification assembly (500) further comprises a fixed tube (503) fixed on the side of the L-shaped fixed plate (201), wherein a suction fan blade (504) is provided inside the fixed tube (503), and an air intake pipe (505) is provided on the outer surface of the fixed tube (503), wherein one end of the air intake pipe (505) extends into the interior of the fixed tube (503), and the other end of the air intake pipe (505) extends into the interior of the purification cylinder (501).

7. A simple welding auxiliary device for an oxygen lance body according to claim 6, characterized in that: One end of the second rotating shaft (402) extends to the interior of the fixed tube (503) and is fixedly provided with a rotating rod (506); the suction fan blade (504) is fixedly provided at the end of the rotating rod (506); and a ventilation net (507) is fixedly provided on the inner wall of the end of the fixed tube (503).

8. The simplified welding auxiliary device for an oxygen lance body according to claim 7, characterized in that: The inner top wall of the L-shaped fixing plate (201) is provided with a grinding assembly (600), and the grinding assembly (600) comprises a rectangular box (601) fixed on the inner top wall of the L-shaped fixing plate (201), and a sliding hole opened on the front of the rectangular box (601), the inner wall of the sliding hole is slidably provided with a sliding column (602), and the end of the sliding column (602) is fixedly provided with a grinding block (603).

9. The simplified welding auxiliary device for an oxygen lance body according to claim 8, characterized in that: The outer surface of the sliding column (602) is sleeved with a tightening spring (604), one end of the tightening spring (604) is fixedly connected to the surface of the grinding block (603), and the other end of the tightening spring (604) is fixedly connected to the surface of the rectangular box (601).

10. The simplified welding auxiliary device for an oxygen lance body according to claim 9, characterized in that: A rectangular opening is provided on the front of the rectangular box (601), and a first guide roller (605) and a second guide roller (606) are rotatably provided on the inner wall of the rectangular box (601), and a pull rope (607) is fixed to the other end of the sliding column (602), and the end of the pull rope (607) away from the sliding column (602) is guided by the first guide roller (605) and the second guide roller (606) and then passes through the rectangular opening and is fixedly connected to the surface of the mounting seat (302).

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