Welded metal compensator

Abstract

The invention relates to the technical field of compensator welding, in particular to a welding metal compensator which comprises an operation table, an adjusting structure, an extension structure, a fixing structure, a limiting structure, a mounting structure and a welding gun. The height of the clamp can be conveniently adjusted according to the radius of the corrugated pipe and the radius of the end pipe through the adjusting structure, the clamp can adapt to compensators of different sizes, practicability is high, the corrugated pipe and the end pipe can be conveniently and rapidly welded through the fixing structure, firmness is high, meanwhile, the corrugated pipe and the end pipe can be conveniently rotated through cooperation with the limiting structure, operation is easy and convenient, and practicability is high. The welding gun is simple in structure and high in flexibility, the welding gun can be conveniently fixed through the installation structure, meanwhile, the angle of the welding gun can be flexibly adjusted, the problem that manual welding is difficult to operate due to small operation space is solved, and the welding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of compensator welding, in particular to a welded metal compensator. Background Art

[0002] A metal compensator is a device used in a pipeline system. It is usually composed of components such as bellows, end pipes, flanges and ear plates. They need to be welded separately in pairs. The welding of the bellows and the end pipes is the key part of welding metal compensators. Both ends of the bellows need to be welded to the end pipes to connect the compensator to the pipeline system.

[0003] When welding a traditional compensator, the bellows and the end pipe are usually placed directly on the roller of the operating table, and the ends of the bellows and the end pipe are aligned with the assistance of others, and then another operator performs welding around the connection. Therefore, the operator is always required to grasp and align the bellows and the end pipe during welding. Due to the limited operating space, it is inconvenient for the welder to operate, resulting in low operating efficiency.

[0004] During the welding process, the operator is required to weld the connection between the bellows and the end pipe. Therefore, when the angle between the bellows and the end pipe needs to be adjusted, the operator is required to manually rotate the bellows and the end pipe. The operation process is cumbersome, and the manual rotation of the bellows and the end pipe is prone to cracking of the weld, and the flexibility is poor.

[0005] When performing a fully enclosed welding operation on the connection between the corrugated pipe and the end pipe, an operator usually walks around an operating table holding a welding gun. However, due to the low height of the operating table, the operator is required to bend over to operate, resulting in low operating efficiency. Summary of the invention

[0006] In view of the problems in the prior art, the present invention provides a welded metal compensator.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a welding metal compensator, comprising an operating table, an adjustment structure installed on the operating table, an extension structure arranged on the adjustment structure, a fixed structure connected to the extension structure, a limiting structure matched with the fixed structure, a mounting structure installed at the edge of the operating table, and a welding gun arranged on the mounting structure;

[0008] The extension structure includes a second guide rod and a mounting plate slidably connected to the second guide rod, and the adjusting structure is matched with the second guide rod, and the fixing structure includes a rotating rod and a rotating sleeve rotatably connected to the rotating rod, and the rotating rod is rotatably connected at the center position of the mounting plate, and four first mounting blocks are fixedly connected to the two ends of the rotating sleeve, respectively, the first mounting block is fixedly connected to the first rotating shaft, the first rotating shaft is rotatably connected to the first rotating bar, a contact plate is provided between the two first rotating bars at the two ends of the rotating sleeve, and three third rotating shafts are fixedly connected to the bottom end of the contact plate, and the two first rotating bars in the same plane are rotatably connected to two of the third rotating shafts, the end of the rotating rod is fixedly connected to a second screw rod, the second screw rod is threadedly connected to a driving ring, and four second mounting blocks are fixedly connected to the driving ring, the second mounting block is fixedly connected to the second rotating shaft, the second rotating bar is rotatably connected to the second rotating shaft, the second rotating bar is rotatably connected to another third rotating shaft on the contact plate, and a limiting structure is matched on the rotating sleeve.

[0009] Specifically, a second motor is fixedly connected to the back side of the mounting plate, an output shaft of the second motor is fixedly connected to the rotating rod, and a rubber pad is fixedly connected to the abutment plate.

[0010] Specifically, the first rotating bar and the second rotating bar are both in an "H"-shaped structure, and the end surface of the abutment plate is in a "convex"-shaped structure.

[0011] Specifically, the limiting structure includes a mounting seat and a bearing engaged with the mounting seat, the front side of the mounting plate is fixedly connected to the mounting seat, the bearing is rotatably connected to the rotating sleeve, the interior of the mounting seat is fixedly connected to an inner ratchet, the end of the rotating sleeve is slidably connected to a limiting block, a first spring is fixedly connected between the limiting block and the inner wall of the rotating sleeve, and the limiting block is engaged with the inner ratchet.

[0012] Specifically, the cross section of the mounting seat is a "convex"-shaped structure, and the cross section of the limiting block is a trapezoidal structure.

[0013] Specifically, the adjustment structure includes a mounting frame and a first guide rod fixedly connected to the mounting frame. The two ends of the operating table are respectively fixedly connected to a mounting frame, and a first screw rod is rotatably connected to the mounting frame. A slide plate is provided between the first guide rod and the first screw rod, and the slide plate is slidably connected to the first guide rod. The slide plate and the first screw rod are threadedly connected.

[0014] Specifically, the two mounting frames are symmetrically arranged, the top surface of the mounting frame is fixedly connected with the first motor, and the output shaft of the first motor is fixedly connected to the first screw rod.

[0015] Specifically, one side of the slide plate is fixedly connected to two second guide rods, the other side of the slide plate is fixedly connected to a support plate, the support plate is fixedly connected to a hydraulic rod, the telescopic end of the hydraulic rod is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the mounting plate.

[0016] Specifically, the mounting structure includes a support frame and a telescopic plate slidably connected to the inside of the support frame, the support frame is fixedly connected to the edge of the operating table, the support frame is threadedly connected to a knob, the end of the knob abuts against the telescopic plate, the top of the telescopic plate is fixedly connected to a rotating frame, the rotating frame is rotatably connected to a fourth rotating shaft, the fourth rotating shaft is fixedly connected to a clamp, the end of the fourth rotating shaft is slidably connected to a clamp block, the clamp block and the groove on the outer wall of the rotating frame are mutually engaged, and a second spring is fixedly connected between the clamp block and the end of the fourth rotating shaft.

[0017] Specifically, the end of the clamp block is a hexagonal structure, and a welding gun is fixedly connected to the clamp.

[0018] The beneficial effects of the present invention are:

[0019] (1) The welding metal compensator described in the present invention has an adjustment structure installed on the operating table. The adjustment structure is used in conjunction with the extension structure. The setting of the adjustment structure is convenient for adjusting the height of the clamp according to the size of the radius of the bellows and the end pipe, thereby facilitating adaptation to compensators of different sizes, and has strong practicality.

[0020] (2) The welded metal compensator described in the present invention has a fixed structure on the elongated structure. The fixed structure is used in conjunction with the limiting structure. The setting of the fixed structure facilitates rapid welding of the bellows and the end pipes, and has strong firmness. At the same time, the limiting structure facilitates the rotation of the bellows and the end pipes, and is easy to operate and highly flexible.

[0021] (3) The welding metal compensator described in the present invention has a mounting structure installed on the operating table. The arrangement of the mounting structure facilitates the fixation of the welding gun and can flexibly adjust the angle of the welding gun, thereby solving the problem of manual welding being difficult to operate due to the small operating space and improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a welded metal compensator provided by the present invention;

[0024] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of section A is shown;

[0025] Figure 3 for Figure 1 An enlarged schematic diagram of the structure of part B is shown;

[0026] Figure 4 for Figure 1 An enlarged schematic diagram of the C-section structure is shown;

[0027] Figure 5 It is a schematic diagram of the connection structure between the second guide rod and the mounting plate of the present invention;

[0028] Figure 6 for Figure 5 An enlarged schematic diagram of the D-section structure is shown;

[0029] Figure 7 It is a schematic diagram of the connection structure between the mounting plate and the rotating rod of the present invention;

[0030] Figure 8 for Figure 7 An enlarged schematic diagram of the structure of part E is shown;

[0031] Fig. 9 for Figure 7 The enlarged schematic diagram of the F part structure is shown.

[0032] In the figure: 1, operating table; 2, adjusting structure; 201, mounting frame; 202, first guide rod; 203, first screw rod; 204, slide plate; 205, first motor; 3, extension structure; 301, second guide rod; 302, mounting plate; 303, support plate; 304, hydraulic rod; 305, connecting plate; 4, fixing structure; 401, rotating rod; 402, rotating sleeve; 403, second screw rod; 404, driving ring; 405, first mounting block; 406, first rotating shaft; 407, first rotating bar; 408, Second mounting block; 409, second rotating shaft; 410, second rotating bar; 411, third rotating shaft; 412, contact plate; 413, rubber pad; 414, second motor; 5, limiting structure; 501, mounting seat; 502, bearing; 503, inner ratchet; 504, first spring; 505, limiting block; 6, mounting structure; 601, supporting frame; 602, telescopic plate; 603, knob; 604, rotating frame; 605, fourth rotating shaft; 606, clamp; 607, second spring; 608, clamping block; 7, welding gun. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8 As shown, a welding metal compensator described in the present invention includes an operating table 1, an adjusting structure 2 installed on the operating table 1, an elongation structure 3 arranged on the adjusting structure 2, a fixed structure 4 connected to the elongation structure 3, a limiting structure 5 matched with the fixed structure 4, a mounting structure 6 installed at the edge of the operating table 1, and a welding gun 7 arranged on the mounting structure 6, the elongation structure 3 includes a second guide rod 301 and a mounting plate 302 slidably connected to the second guide rod 301, the adjusting structure 2 is matched with the second guide rod 301, one side of the slide plate 204 is fixedly connected to two second guide rods 301, the other side of the slide plate 204 is fixedly connected to a support plate 303, and the support plate 303 is fixedly connected to a hydraulic rod 304, the telescopic end of the hydraulic rod 304 is fixedly connected with a connecting plate 305, and the connecting plate 305 is fixedly connected to the mounting plate 302; when the installation of the bellows and the end pipe is completed, the telescopic ends of the hydraulic rod 304 on the two support plates 303 extend outward at the same time, and then the hydraulic rod 304 drives the mounting plate 302 to slide along the second guide rod 301 through the connecting plate 305 at the end, and at this time the mounting plate 302 drives the two symmetrical rotating sleeves 402 to move toward the middle direction at the same time, and then drives the bellows and the end pipe to move toward the middle direction at the same time, until the bellows and the end pipe are aligned and contacted with each other at the pipe mouth, at this time the bellows and the end pipe can be welded, the operation is simple, and the problem of the operator always needing to align the bellows and the end pipe during the welding process is avoided, thereby improving the welding efficiency.

[0035] Specifically, Figure 1-Figure 3 and Figure 5-Figure 9As shown, the fixed structure 4 includes a rotating rod 401 and a rotating sleeve 402 rotatably connected to the rotating rod 401, the central position of the mounting plate 302 is rotatably connected to the rotating rod 401, and the two ends of the rotating sleeve 402 are respectively fixedly connected to four first mounting blocks 405, and the first mounting blocks 405 are fixedly connected to the first rotating shaft 406, and the first rotating bar 407 is rotatably connected to the first rotating shaft 406. A contact plate 412 is provided between two of the first rotating bars 407 located at the two ends of the rotating sleeve 402, and three third rotating shafts 411 are fixedly connected to the bottom end of the contact plate 412. Two of the first rotating bars 407 on the same plane are rotatably connected to two of the third rotating shafts 411, and the end of the rotating rod 401 is fixedly connected to a second screw rod 403, and the second A driving ring 404 is threadedly connected to the screw rod 403, and four second mounting blocks 408 are fixedly connected to the driving ring 404. A second rotating shaft 409 is fixedly connected to the second mounting block 408. A second rotating bar 410 is rotatably connected to the second rotating shaft 409. The second rotating bar 410 is rotatably connected to another third rotating shaft 411 on the contact plate 412. The rotating sleeve 402 is matched with a limiting structure 5. A second motor 414 is fixedly connected to the back side of the mounting plate 302. The output shaft of the second motor 414 is fixedly connected to the rotating rod 401. A rubber pad 413 is fixedly connected to the contact plate 412. The first rotating bar 407 and the second rotating bar 410 are both "H"-shaped structures, and the end face of the contact plate 412 is a "convex"-shaped structure.Then, the bellows and the end pipe are respectively mounted on the two rotating sleeves 402. First, the second motor 414 on the back of the mounting plate 302 drives the rotating rod 401 at the driving end to rotate counterclockwise, and then the rotating rod 401 drives the second screw rod 403 at the end to rotate. At this time, the second screw rod 403 brings a force for the driving ring 404 to rotate counterclockwise. Since the driving ring 404 is connected to the rotating sleeve 402 through the contact plate 412, the force for the rotating sleeve 402 to rotate counterclockwise is transmitted at this time. At this time, the rotating rod 401 and the rotating sleeve 40 2, the rotating rod 401 rotates counterclockwise inside the rotating sleeve 402. Since the driving ring 404 is threadedly connected to the second screw rod 403, and the driving ring 404 cannot rotate counterclockwise at this time, the driving ring 404 is driven to move toward the second motor 414. During the movement of the driving ring 404, the first rotating bar 407 and the second rotating bar 410 rotate respectively through the first rotating shaft 406 on the first mounting block 405 and the second rotating shaft 409 on the second mounting block 408. At this time, the rotating sleeve 402 The angle between the first rotating bar 407 at the end of the rotating sleeve 402 and the second rotating bar 410 on the driving ring 404 gradually decreases, and at the same time, the first rotating bar 407 at the other end of the rotating sleeve 402 rotates toward the second motor 414. Since the top ends of the first rotating bar 407 and the second rotating bar 410 rotate with the contact plate 412 through the third rotating shaft 411, and in the process in which the first rotating bar 407 and the second rotating bar 410 drive the contact plate 412 to rotate toward the second motor 414, it is ensured that the contact plate 412 is always in contact with the rotating sleeve. 402 are kept parallel to each other until the rubber pads 413 on the four contact plates 412 are tightly in contact with the inner wall of the bellows, thus completing the fixing of the bellows, which is strong in firmness, and the rubber pads 413 increase the friction between the inner wall of the bellows, and at the same time, the end tube repeats the same operation, so that the four contact plates 412 at the other end are tightly against the inner wall of the end tube, at this time, the bellows and the end tube are effectively fixed, the stability is improved, and the bellows or the end tube is prevented from falling off from the operating table 1 during the welding process, and the operation is simple. ;

[0036] Specifically, Figure 2 , Figure 6 and Figure 8As shown, the limiting structure 5 includes a mounting seat 501 and a bearing 502 engaged with the mounting seat 501. The front of the mounting plate 302 is fixedly connected with the mounting seat 501. The bearing 502 is rotatably connected with the rotating sleeve 402. The interior of the mounting seat 501 is fixedly connected with an inner ratchet 503. The end of the rotating sleeve 402 is slidably connected with a limiting block 505. A first spring 504 is fixedly connected between the limiting block 505 and the inner wall of the rotating sleeve 402. The limiting block 505 is engaged with The inner ratchet 503, the cross section of the mounting seat 501 is a "convex" shaped structure, and the cross section of the limit block 505 is a trapezoidal structure; the rotating sleeve 402 drives the limit block 505 at the end to rotate. However, when there is a counterclockwise rotation force on the limit block 505, the limit block 505 and the inner ratchet 503 inside the mounting seat 501 are engaged with each other, thereby preventing the rotating sleeve 402 and the limit block 505 from rotating. In the process of welding the connection between the corrugated pipe and the end pipe, it is necessary to rotate and adjust the welding angle. At this time, the two mounting The second motor 414 on the back of the mounting plate 302 drives the two rotating rods 401 to rotate clockwise, and then the rotating rod 401 brings a force for the second screw rod 403 and the driving ring 404 at the end to rotate in the clockwise direction. The driving ring 404 brings a force for the rotating sleeve 402 to rotate in the clockwise direction through the contact plate 412. Since the inner ratchet 503 in the clockwise direction does not prevent the limit block 505 from rotating, the limit block 505 slides toward the inside of the rotating sleeve 402 and compresses the first spring 504. At this time, due to the driving The friction force between the ring 404 and the second screw rod 403 is greater than the friction force between the limit block 505 and the inner ratchet 503. At the same time, the end of the rotating sleeve 402 is rotatably connected to the mounting seat 501 through the bearing 502, and then the rotating rod 401 drives the rotating sleeve 402 and the bellows to rotate clockwise, and the end pipe at the other end of the operating table 1 rotates clockwise at the same time. At this time, the bellows and the end pipe are effectively rotated during the welding process, which is convenient for 360-degree welding of the connection between the bellows and the end pipe. The operation is simple and flexible.

[0037] Specifically, Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8As shown, the adjustment structure 2 includes a mounting frame 201 and a first guide rod 202 fixedly connected to the mounting frame 201. The two ends of the operating table 1 are respectively fixedly connected with a mounting frame 201, and the mounting frame 201 is rotatably connected with a first screw rod 203. A slide plate 204 is provided between the first guide rod 202 and the first screw rod 203. The slide plate 204 is slidably connected to the first guide rod 202, and the slide plate 204 is threadedly connected to the first screw rod 203. The two mounting frames 201 are symmetrically arranged. A first motor 205 is fixedly connected to the top surface of 201, and the output shaft of the first motor 205 is fixedly connected to the first screw rod 203; the height of the clamp on the operating table 1 is adjusted according to the radius of the welded compensator, and the first motors 205 on the two mounting frames 201 respectively drive the two first screw rods 203 to rotate, and then the first screw rods 203 drive the slide plate 204 to slide up and down along the first guide rod 202, thereby effectively adjusting the height of the clamp on the slide plate 204 to ensure that the center points of the corrugated tube and the end tube are located in the same straight line, with strong flexibility.

[0038] Specifically, Figure 4 As shown, the mounting structure 6 includes a support frame 601 and a telescopic plate 602 slidably connected to the inside of the support frame 601, the support frame 601 is fixedly connected at the edge of the operating table 1, the support frame 601 is threadedly connected with a knob 603, the end of the knob 603 abuts against the telescopic plate 602, the top of the telescopic plate 602 is fixedly connected with a rotating frame 604, the rotating frame 604 is rotatably connected with a fourth rotating shaft 605, the fourth rotating shaft 605 is fixedly connected with a clamp 606, the end of the fourth rotating shaft 605 is slidably connected with a clamp block 608, the clamp block 608 and the groove on the outer wall of the rotating frame 604 are mutually engaged, a second spring 607 is fixedly connected between the clamp block 608 and the end of the fourth rotating shaft 605, the end of the clamp block 608 is a hexagonal structure, and the clamp 606 is fixedly connected with a welding gun 7; when the wave is completed After the installation of the bellows and the end tube, the welding gun 7 can be installed. It only needs to be engaged with the clamp 606 at the top of the telescopic plate 602, and then the clamp 606 is fixed by bolts, and the telescopic plate 602 is pulled upward to a suitable height, and then the knob 603 on the support frame 601 is pressed tightly, and the block 608 on the fourth rotating shaft 605 is pulled outward so that the block 608 is no longer engaged with the groove provided on the rotating frame 604. At this time, the rotating frame 604 can be rotated by the fourth rotating shaft 605 to a certain angle so that the nozzle of the welding gun 7 is aligned with the connection between the bellows and the end tube, and then the block 608 is released. The block 608 is re-engaged with the groove on the rotating frame 604 under the resetting action of the second spring 607. At this time, the installation of the welding gun 7 and the adjustment of the angle are completed, avoiding the problem of difficult operation due to small operating space during manual welding, thereby improving the welding efficiency.

[0039] When the present invention is in use, the height of the clamp on the operating table 1 is adjusted according to the radius of the welded compensator, and the first motors 205 on the two mounting frames 201 respectively drive the two first screw rods 203 to rotate, and then the first screw rods 203 drive the slide plate 204 to slide up and down along the first guide rod 202, thereby effectively adjusting the height of the clamp on the slide plate 204, ensuring that the center points of the corrugated pipe and the end pipe are located on the same straight line, with strong flexibility, and then the corrugated pipe and the end pipe are respectively sleeved on the two rotating sleeves 402, firstly, the second motor 414 on the back of the mounting plate 302 drives the rotating rod 401 at the driving end to rotate counterclockwise, and then the rotating rod 401 drives the second screw rod 403 at the end to rotate, and at this time the second screw rod 40 3 brings a force for the drive ring 404 to rotate counterclockwise. Since the drive ring 404 is connected to the rotating sleeve 402 through the contact plate 412, the force for the rotating sleeve 402 to rotate counterclockwise is transmitted at this time, and the rotating sleeve 402 drives the limit block 505 at the end to rotate. However, when there is a counterclockwise force on the limit block 505, the limit block 505 and the inner ratchet 503 inside the mounting seat 501 are engaged with each other, thereby preventing the rotating sleeve 402 and the limit block 505 from rotating. At this time, relative rotation occurs between the rotating rod 401 and the rotating sleeve 402, and the rotating rod 401 rotates counterclockwise inside the rotating sleeve 402. Since the drive ring 404 is threadedly connected to the second screw rod 403, and At this time, the driving ring 404 cannot rotate counterclockwise, and then drives the driving ring 404 to move in the direction of the second motor 414. During the movement of the driving ring 404, the first rotating bar 407 and the second rotating bar 410 rotate respectively through the first rotating shaft 406 on the first mounting block 405 and the second rotating shaft 409 on the second mounting block 408. At this time, the angle between the first rotating bar 407 at the end of the rotating sleeve 402 and the second rotating bar 410 on the driving ring 404 gradually decreases, and at the same time, the first rotating bar 407 at the other end of the rotating sleeve 402 rotates in the direction of the second motor 414. Since the top ends of the first rotating bar 407 and the second rotating bar 410 are rotated through the third rotating shaft 411 and the contact plate 412, Furthermore, in the process of the first rotating bar 407 and the second rotating bar 410 driving the contact plate 412 to rotate in the direction of the second motor 414, it is ensured that the contact plate 412 is always parallel to the rotating sleeve 402, until the rubber pads 413 on the four contact plates 412 are tightly in contact with the inner wall of the bellows, and the bellows is fixed, which is strong in firmness, and the rubber pads 413 increase the friction between the inner wall of the bellows, and the end tube repeats the same operation at the same time, so that the four contact plates 412 at the other end are tightly against the inner wall of the end tube, and the bellows and the end tube are effectively fixed at this time, the stability is improved, and the bellows or the end tube is prevented from falling off from the operating table 1 during the welding process, and the operation is simple;

[0040] After the installation of the bellows and the end pipes is completed, the telescopic ends of the hydraulic rods 304 on the two support plates 303 extend outward at the same time, and then the hydraulic rods 304 drive the mounting plate 302 to slide along the second guide rod 301 through the connecting plate 305 at the end. At this time, the mounting plate 302 drives the two symmetrical rotating sleeves 402 to move toward the middle direction at the same time, and then drives the bellows and the end pipes to move toward the middle direction at the same time, until the bellows and the end pipes are aligned and contact each other at their mouths. At this time, the bellows and the end pipes can be welded, which is easy to operate and avoids the problem of the operator always needing to align the bellows and the end pipes during the welding process, thereby improving the welding efficiency.

[0041] After the installation of the bellows and the end pipe is completed, the welding gun 7 can be installed. It only needs to be engaged with the clamp 606 at the top of the telescopic plate 602, and then the clamp 606 is fixed by bolts, and the telescopic plate 602 is pulled upward to a suitable height, and then the knob 603 on the support frame 601 is pressed tightly, and the clamp 608 on the fourth rotating shaft 605 is pulled outward, so that the clamp 608 is no longer engaged with the groove provided on the rotating frame 604. At this time, the rotating frame 604 can be rotated to a certain angle through the fourth rotating shaft 605, so that the nozzle of the welding gun 7 is aligned with the connection between the bellows and the end pipe, and then the clamp 608 is released. The clamp 608 is again engaged with the groove on the rotating frame 604 under the reset action of the second spring 607. At this time, the installation of the welding gun 7 and the adjustment of the angle are completed, avoiding the problem of manual welding being difficult to operate due to small operating space, thereby improving welding efficiency.

[0042] During the welding process of the connection between the corrugated pipe and the end pipe, it is necessary to rotate and adjust the welding angle. At this time, the second motors 414 on the back of the two mounting plates 302 drive the two rotating rods 401 to rotate clockwise, and then the rotating rods 401 bring a force for the second screw rods 403 and the driving ring 404 at the end to rotate in the clockwise direction. The driving ring 404 brings a force for the rotating sleeve 402 to rotate in the clockwise direction through the contact plate 412. Since the inner ratchet 503 in the clockwise direction does not prevent the limit block 505 from rotating, the limit block 505 slides toward the inside of the rotating sleeve 402 and The first spring 504 is compressed. At this time, the friction force between the drive ring 404 and the second screw rod 403 is greater than the friction force between the limit block 505 and the inner ratchet 503. At the same time, the end of the rotating sleeve 402 is rotatably connected to the mounting seat 501 through the bearing 502, and then the rotating rod 401 drives the rotating sleeve 402 and the bellows to rotate clockwise, and the end pipe at the other end of the operating table 1 rotates clockwise at the same time. At this time, the bellows and the end pipe are effectively rotated during the welding process, which is convenient for 360-degree welding of the connection between the bellows and the end pipe. The operation is simple and flexible.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A welded metal compensator, characterized in that: The device comprises an operating table (1), an adjusting structure (2) installed on the operating table (1), an elongated structure (3) arranged on the adjusting structure (2), a fixed structure (4) connected to the elongated structure (3), a limiting structure (5) matched with the fixed structure (4), a mounting structure (6) installed at the edge of the operating table (1), and a welding gun (7) arranged on the mounting structure (6); The elongation structure (3) comprises a second guide rod (301) and a mounting plate (302) slidably connected to the second guide rod (301); the adjustment structure (2) is matched with the second guide rod (301); the fixed structure (4) comprises a rotating rod (401) and a rotating sleeve (402) rotatably connected to the rotating rod (401); the rotating rod (401) is rotatably connected to the center of the mounting plate (302); four first mounting blocks (405) are respectively fixedly connected to the two ends of the rotating sleeve (402); the first mounting blocks (405) are fixedly connected to the first rotating shaft (406); the first rotating shaft (406) is rotatably connected to the first rotating bar (407); a contact plate (412) is provided between the two first rotating bars (407) located at the two ends of the rotating sleeve (402). The bottom end of the contact plate (412) is fixedly connected with three third rotating shafts (411), and the two first rotating bars (407) on the same plane are rotatably connected with two of the third rotating shafts (411). The end of the rotating rod (401) is fixedly connected with a second screw rod (403), and a driving ring (404) is threadedly connected to the second screw rod (403). Four second mounting blocks (408) are fixedly connected to the driving ring (404), and a second rotating shaft (409) is fixedly connected to the second mounting block (408). The second rotating shaft (409) is rotatably connected with a second rotating bar (410), and the second rotating bar (410) is rotatably connected with another third rotating shaft (411) on the contact plate (412), and a limiting structure (5) is matched on the rotating sleeve (402).

2. A welded metal compensator according to claim 1, characterized in that: A second motor (414) is fixedly connected to the back of the mounting plate (302), an output shaft of the second motor (414) is fixedly connected to the rotating rod (401), and a rubber pad (413) is fixedly connected to the abutment plate (412).

3. A welded metal compensator according to claim 1, characterized in that: The first rotating bar (407) and the second rotating bar (410) are both H-shaped structures, and the end surface of the abutment plate (412) is convex-shaped.

4. A welded metal compensator according to claim 1, characterized in that: The limiting structure (5) comprises a mounting seat (501) and a bearing (502) engaged with the mounting seat (501); the front surface of the mounting plate (302) is fixedly connected with the mounting seat (501); the bearing (502) is rotatably connected to the rotating sleeve (402); an inner ratchet (503) is fixedly connected inside the mounting seat (501); an end of the rotating sleeve (402) is slidably connected to a limiting block (505); a first spring (504) is fixedly connected between the limiting block (505) and the inner wall of the rotating sleeve (402); and the limiting block (505) is engaged with the inner ratchet (503).

5. A welded metal compensator according to claim 4, characterized in that: The cross section of the mounting seat (501) is in a "convex" shape, and the cross section of the limiting block (505) is in a trapezoidal structure.

6. A welded metal compensator according to claim 1, characterized in that: The adjustment structure (2) comprises a mounting frame (201) and a first guide rod (202) fixedly connected to the mounting frame (201); two ends of the operating platform (1) are respectively fixedly connected to a mounting frame (201); a first screw rod (203) is rotatably connected to the mounting frame (201); a slide plate (204) is provided between the first guide rod (202) and the first screw rod (203); the slide plate (204) is slidably connected to the first guide rod (202); and the slide plate (204) and the first screw rod (203) are threadedly connected.

7. A welded metal compensator according to claim 6, characterized in that: The two mounting frames (201) are symmetrically arranged, and a first motor (205) is fixedly connected to the top surface of the mounting frame (201), and an output shaft of the first motor (205) is fixedly connected to the first screw rod (203).

8. A welded metal compensator according to claim 6, characterized in that: One side of the slide plate (204) is fixedly connected to two second guide rods (301), and the other side of the slide plate (204) is fixedly connected to a support plate (303), and the support plate (303) is fixedly connected to a hydraulic rod (304), and the telescopic end of the hydraulic rod (304) is fixedly connected to a connecting plate (305), and the connecting plate (305) is fixedly connected to the mounting plate (302).

9. A welded metal compensator according to claim 1, characterized in that: The mounting structure (6) comprises a support frame (601) and a telescopic plate (602) slidably connected to the inside of the support frame (601); the support frame (601) is fixedly connected to the edge of the operating table (1); a knob (603) is threadedly connected to the support frame (601); the end of the knob (603) abuts against the telescopic plate (602); a rotating frame (604) is fixedly connected to the top of the telescopic plate (602); a fourth rotating shaft (605) is rotatably connected to the rotating frame (604); a clamp (606) is fixedly connected to the fourth rotating shaft (605); a clamping block (608) is slidably connected to the end of the fourth rotating shaft (605); the clamping block (608) and a groove on the outer wall of the rotating frame (604) are mutually engaged; a second spring (607) is fixedly connected between the clamping block (608) and the end of the fourth rotating shaft (605).

10. A welded metal compensator according to claim 9, characterized in that: The end of the clamping block (608) is a hexagonal structure, and a welding gun (7) is fixedly connected to the clamp (606).

Images