Multi-machine-head welding device for girth in annular cylinder

Abstract

The invention discloses a multi-head annular cylinder inner girth welding device, and relates to the technical field of inner girth welding.The multi-head annular cylinder inner girth welding device comprises a supporting frame, a transverse frame is connected to the top end of the supporting frame through bolts, a position adjusting and attaching mechanism is arranged in the transverse frame, an electric telescopic rod is started to push a push plate and a sleeve to move, and the position of a welding arm is adjusted; the welding device is scientific and reasonable in structure and safe and convenient to use, a position adjusting and attaching mechanism is arranged, an electric telescopic rod drives a push plate, a sleeve, a mounting plate, a convex plate and a welding arm to move, the welding device is convenient to operate, the welding device is simple in structure, the welding device is convenient to operate, and the welding device is convenient to use. And meanwhile, through cooperation of supporting springs, a sleeve pushes a supporting wheel and a sliding rod to slide, the supporting wheel is conveniently attached to the inner wall of an annular cylinder, then an electric telescopic rod drives a push plate to continuously move, the supporting wheel is extruded, and the sliding rod slides and shrinks in the sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of inner annular seam welding, in particular to an inner annular seam welding device for an annular cylinder with multiple machine heads. Background Art

[0002] At present, the welding of the internal reinforcement ribs of the tank body in round tank trucks is still mostly done by manual welding, especially in the field of pressure vessel special vehicles, where reinforcement rib welding is more common. For example, the 52.6m 3 The LNG model has as many as 55 lines, which is a huge workload for the workshop welding work. From a traditional perspective, only by increasing the input of personnel can the production efficiency be improved;

[0003] However, when using the existing inner annular seam welding device, it is not convenient to adjust the position of the welding arm according to the inner diameter of the tank body, which affects the fitting effect of the welding arm and the inner wall of the tank body, has poor adaptability, and reduces the welding effect. Therefore, in order to avoid the above-mentioned technical problems, it is necessary to provide a multi-head annular cylinder inner annular seam welding device to overcome the above-mentioned defects in the prior art. Summary of the invention

[0004] The present invention provides a multi-head annular cylinder inner annular seam welding device, which can effectively solve the problem raised in the above background technology that it is inconvenient to adjust the position of the welding arm according to the inner diameter of the tank body, which affects the fitting effect between the welding arm and the inner wall of the tank body, has poor adaptability, and reduces the welding effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-head annular cylinder inner annular seam welding device, comprising a support frame, the top of the support frame is connected to a cross frame by bolts, and a position adjustment and fitting mechanism is arranged inside the cross frame, the electric telescopic rod is started to push the push plate and the sleeve to move, the position of the welding arm is adjusted, and the support wheel is pushed to move by the support spring to fit with the inner wall of the annular cylinder, and at the same time, the support wheel is squeezed to make the slide bar slide and fit with the touch switch, and the electric telescopic rod is turned off to ensure the fitting effect of the welding arm and the inner wall of the annular cylinder;

[0006] Both ends of the cross frame are provided with support and adjustment mechanisms. The telescopic support tube at the bottom of the rotating movable seat is retracted, and then the two rotating cylinders are rotated to push the extension rod and the movable seat to move, pass through the annular cylinder, and then the telescopic support tube is reversed and lowered to support the cross frame, so as to facilitate the support of the cross frame when the telescopic support tube at the bottom of the rotating pad is retracted;

[0007] The inside of the support frame and the cross frame are both provided with welding wire placement and traction mechanisms. The rotating ring pushes the gasket to move and fits with the inner wall of the placement plate, thereby limiting the position of the winding roller and preventing the winding roller from shifting. The adjusting rod is rotated to push the slider and the pressure roller down and cooperate with the support roller to clamp the welding wire.

[0008] According to the above technical solution, the position adjustment and fitting mechanism includes a partition, a traction rod, a driven gear, a support plate, a traction motor, a driving gear, a moving plate, a fixed frame, an electric telescopic rod, a push plate, a sleeve, a mounting plate, a convex plate, a welding arm, a slide rod, a support wheel, a support spring and a touch switch;

[0009] A partition is clamped at one side of the inner wall of the cross frame, a traction rod is symmetrically connected to one end of the partition and the inner wall of the cross frame, and a driven gear is fixedly sleeved at the outer sides of the two traction rods corresponding to one side of the partition. A support plate is connected to one end of the inner wall of the support frame by bolts, and a traction motor is connected to the top of the support plate by bolts. A driving gear is clamped at one end of the output shaft of the traction motor corresponding to the bottom of the two driven gears.

[0010] The two traction rods are both equidistantly sleeved with movable plates at the positions inside the horizontal frame corresponding to the outer sides thereof through threads, the bottom ends of the movable plates are connected with the fixed frames through bolts, the bottom ends of the fixed frames are symmetrically connected with the electric telescopic rods through bolts, the top ends of the two electric telescopic rods are connected with push plates at the positions inside the fixed frames through bolts, the bottom ends of the push plates are clamped with sleeves, the bottom ends of the sleeves are connected with the mounting plates at the positions corresponding to the bottom of the fixed frames through bolts, one end of the push plates is clamped with a convex plate at the positions corresponding to the top of the mounting plates, and a welding arm is connected between the convex plate and the mounting plates through bolts;

[0011] A sliding rod is movably sleeved inside the sleeve, a supporting wheel is clamped at the bottom end of the sliding rod, supporting springs are clamped at the supporting wheel and the sleeve at positions corresponding to the outer sides of the sliding rod, and a touch switch is connected to the top of the push plate at a position corresponding to the top of the sleeve through bolts.

[0012] According to the above technical solution, the threads on the outer sides of the two traction rods rotate in opposite directions, the traction motor is powered by an external power supply, grooves are provided at the bottom end of the partition and the top end of the support frame corresponding to the outer side of the traction motor output shaft, and the driven gear and the driving gear are meshed with each other.

[0013] According to the above technical solution, both ends of the movable plate are slidably connected to the inner wall of the cross frame, the welding arm is equipped with a wire feeder and a welding gun, the top of the sleeve passes through the top of the push plate, the electric telescopic rod and the touch switch are powered by an external power supply, and the signal output end of the touch switch is connected to the input end of the electric telescopic rod.

[0014] According to the above technical solution, both ends of the horizontal frame are provided with a support and adjustment mechanism, and the support and adjustment mechanism includes a fixed block, a rotating drum, a sprocket, a chain, an L-shaped plate, a rotating motor, an extension rod, a moving seat, a pad, a support rod and a telescopic support tube;

[0015] Both ends of the cross frame are equidistantly connected with fixed blocks, and a rotating drum is rotatably connected inside the fixed blocks at one side of the cross frame, sprockets are fixedly sleeved at the outer sides of the two rotating drums corresponding to the positions on one side of the cross frame, and chains are sleeved on the outer sides of the two sprockets, one end of the cross frame is connected to an L-shaped plate by bolts, and one end of the L-shaped plate is connected to a rotating motor by bolts;

[0016] The inside of the two rotating drums are connected with extension rods through threads, and one end of the two extension rods is clamped with a moving seat. The bottom end of the cross frame is connected with a pad through bolts near one side of the moving seat, and the bottom end of the pad and the bottom end of the moving seat are symmetrically clamped with support rods, and the outer side of the support rod is connected with a telescopic support tube through a threaded sleeve.

[0017] According to the above technical solution, the length of the rotating drum is greater than the length of the horizontal frame, the output shaft of the rotating motor is connected to one end of the rotating drum, and the rotating motor is powered by an external power supply.

[0018] According to the above technical solution, the bottom end of the movable seat and the bottom end of the pad are both located on the same horizontal plane, a knob is fixedly sleeved at the top position of the outer side of the telescopic support tube, and a gasket is rotatably connected at the bottom position of the outer side of the telescopic support tube.

[0019] According to the above technical solution, a welding wire placement and traction mechanism is arranged inside the support frame and the cross frame, and the welding wire placement and traction mechanism includes a placement plate, a placement groove, a rotating rod, a winding roller, a rotating ring, a pad ring, a guide roller, a mounting groove, a traction frame, a vertical groove, a slider, a pressure roller, an adjustment rod and a support roller;

[0020] The inner wall of the support frame is symmetrically connected with a placement plate by bolts, and the tops of the two placement plates are equidistantly provided with placement grooves, and a rotating rod is placed inside the placement groove, and a winding roller is fixedly sleeved on the outer side of the rotating rod, and rotating rings are sleeved on the outer side of the rotating rod corresponding to the positions on both sides of the winding roller through threads, and the opposite ends of the two rotating rings are rotatably connected with gaskets at the positions on the outer side of the rotating rod corresponding to the outer side of the rotating rod;

[0021] The guide rollers are symmetrically and rotatably connected at the inner wall of the horizontal frame corresponding to the top position of the placement groove, the top of the partition and the top of the horizontal frame are both provided with installation grooves, and a traction frame is clamped inside the installation groove, and the inner wall of the traction frame is symmetrically and equidistantly provided with vertical grooves, and sliders are movably connected inside the two opposite vertical grooves, and a pressure roller is rotatably connected between the two sliders, and the tops of the two sliders are rotatably connected to adjusting rods, and the inner wall of the traction frame is rotatably connected to a support roller at the position corresponding to the bottom of the pressure roller.

[0022] According to the above technical solution, the inner diameter of the placement groove is larger than the outer diameter of the rotating rod, anti-slip grooves are evenly arranged on the outer side of the rotating ring, and one end of the gasket ring is in contact with one end of the placement plate.

[0023] According to the above technical solution, a notch is provided at the top of the movable plate corresponding to the outer side of the traction frame, the top of the adjusting rod passes through the top of the traction frame, and the outer side of the adjusting rod is connected to the inner wall of the traction frame by threads.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0025] 1. A position adjustment and fitting mechanism is set up. The electric telescopic rod moves the push plate, sleeve, mounting plate, convex plate and welding arm. At the same time, the support spring is used to make the sleeve push the support wheel and the slide bar to slide, so that the support wheel and the inner wall of the annular tube are fitted together. Then, as the electric telescopic rod continues to move with the push plate, the support wheel is squeezed, so that the slide bar slides and shrinks inside the sleeve, so that the welding arm is fitted with the inner wall of the annular tube. After the slide bar is fitted with the touch switch, the electric telescopic rod is closed in time to stop pulling the push plate, so that the welding arm is fitted with the inner wall of the annular tube with different inner diameters, thereby improving adaptability.

[0026] Through the cooperation of the driving gear and the driven gear, the traction motor can drive the two traction rods to rotate, so that the movable plate can slide along the inner wall of the horizontal frame, and the position of the fixed frame and the welding arm can be adjusted, so that the welding position can be adjusted according to the needs, thereby improving convenience.

[0027] 2. A support and adjustment mechanism is set up. By rotating the telescopic support tube at the bottom of the moving seat, the telescopic support tube moves up along the support rod to shorten the distance. Then, through the cooperation of the sprocket and the chain, the two rotating cylinders of the rotating motor rotate together, pushing the extension rod and the moving seat to move. After the moving seat passes through the annular cylinder, the telescopic support tube is restored to support the cross frame, which is convenient for the subsequent rotation and contraction of the telescopic support tube at the bottom of the pad. While pushing the annular cylinder to the outside of the cross frame, the stability of the cross frame is maintained to prevent collapse.

[0028] 3. A welding wire placement and traction mechanism is set up. The gasket ring is pushed to move by rotating the rotating ring, so that the gasket ring is closely fitted with the inner wall of the placement plate, limiting the position of the rotating rod and the winding roller, preventing the winding roller from offset during transportation, and ensuring the transportation effect. The welding wire is conveniently guided by the guide roller, and the slider and the pressure roller are pushed down along the vertical groove by rotating the adjusting rod, and the welding wire is clamped in cooperation with the supporting roller, which limits the position of the welding wire inside the traction frame, facilitates the subsequent guidance and transportation of the welding wire, and improves convenience.

[0029] In summary, the support and adjustment mechanism makes it convenient to install the annular cylinder to the outside of the cross frame while ensuring the stability of the cross frame. In addition, the position adjustment and fitting mechanism and the welding wire placement and traction mechanism make it convenient to weld the inner walls of annular cylinders with different inner diameters, thereby improving convenience. During welding, the welding wire is guided and conveyed to prevent entanglement and dislocation, thereby ensuring the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0031] In the attached picture:

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

[0033] Figure 2 It is a schematic diagram of the installation structure of the partition of the present invention;

[0034] Figure 3 It is a schematic diagram of the installation structure of the support plate of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the position adjustment and laminating mechanism of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the support and adjustment mechanism of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the welding wire placement and traction mechanism of the present invention;

[0038] Figure 7 It is a schematic diagram of the installation structure of the support roller of the present invention.

[0039] Numbers in the figure: 1, support frame; 2, cross frame;

[0040] 3. Position adjustment and fitting mechanism; 301. Partition plate; 302. Traction rod; 303. Driven gear; 304. Support plate; 305. Traction motor; 306. Driving gear; 307. Moving plate; 308. Fixed frame; 309. Electric telescopic rod; 310. Push plate; 311. Sleeve; 312. Mounting plate; 313. Convex plate; 314. Welding arm; 315. Sliding rod; 316. Support wheel; 317. Support spring; 318. Touch switch;

[0041] 4. Support and adjustment mechanism; 401. fixed block; 402. rotating drum; 403. sprocket; 404. chain; 405. L-shaped plate; 406. rotating motor; 407. extension rod; 408. moving seat; 409. pad; 410. support rod; 411. telescopic support tube;

[0042] 5. Welding wire placement and traction mechanism; 501. Placement plate; 502. Placement slot; 503. Turning rod; 504. Winding roller; 505. Rotating ring; 506. Pad ring; 507. Guide roller; 508. Mounting slot; 509. Traction frame; 510. Vertical slot; 511. Sliding block; 512. Pressure roller; 513. Adjusting rod; 514. Support roller. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0044] Example: Figure 1-7 As shown, the present invention provides a technical solution, a multi-head annular cylinder inner annular seam welding device, comprising a support frame 1, a cross frame 2 is connected to the top of the support frame 1 by bolts, a position adjustment and fitting mechanism 3 is arranged inside the cross frame 2, the electric telescopic rod 309 is started to push the push plate 310 and the sleeve 311 to move, the position of the welding arm 314 is adjusted, and the support wheel 316 is pushed to move by the support spring 317 to fit with the inner wall of the annular cylinder, and at the same time, the support wheel 316 is squeezed to make the slide bar 315 slide and fit with the touch switch 318, and the electric telescopic rod 309 is closed to ensure the fitting effect of the welding arm 314 and the inner wall of the annular cylinder;

[0045] Both ends of the horizontal frame 2 are provided with a support and adjustment mechanism 4. The telescopic support tube 411 at the bottom of the rotating movable seat 408 is retracted, and then the two rotating cylinders 402 are rotated to push the extension rod 407 and the movable seat 408 to move, pass through the annular cylinder, and then reverse the telescopic support tube 411 to descend to support the horizontal frame 2, so as to facilitate the support of the horizontal frame 2 when the telescopic support tube 411 at the bottom of the rotating pad 409 is retracted;

[0046] The inside of the support frame 1 and the inside of the horizontal frame 2 are both provided with a welding wire placement and traction mechanism 5. The rotating ring 505 pushes the pad ring 506 to move and fit with the inner wall of the placement plate 501, thereby limiting the position of the winding roller 504 and preventing the winding roller 504 from being offset. The adjusting rod 513 is rotated to push the slider 511 and the pressure roller 512 downward, and cooperate with the supporting roller 514 to clamp the welding wire.

[0047] The position adjustment and laminating mechanism 3 includes a partition 301, a traction rod 302, a driven gear 303, a support plate 304, a traction motor 305, a driving gear 306, a moving plate 307, a fixing frame 308, an electric telescopic rod 309, a push plate 310, a sleeve 311, a mounting plate 312, a convex plate 313, a welding arm 314, a sliding rod 315, a support wheel 316, a support spring 317 and a touch switch 318;

[0048] A partition 301 is clamped at one side of the inner wall of the cross frame 2, and a traction rod 302 is symmetrically connected to one end of the partition 301 and the inner wall of the cross frame 2. A driven gear 303 is fixedly sleeved at the outer side of the two traction rods 302 corresponding to the position of one side of the partition 301. A support plate 304 is bolted to one end of the inner wall of the support frame 1, and a traction motor 305 is bolted to the top of the support plate 304. A driving gear 306 is clamped at one end of the output shaft of the traction motor 305 corresponding to the bottom of the two driven gears 303. In order to facilitate the transmission of power, the threads on the outer sides of the two traction rods 302 rotate in opposite directions. The traction motor 305 is powered by an external power supply. Grooves are provided at the bottom end of the partition 301 and the top end of the support frame 1 corresponding to the outer side of the output shaft of the traction motor 305, and the driven gear 303 and the driving gear 306 are meshed with each other.

[0049] The outer sides of the two traction rods 302 are equidistantly sleeved with movable plates 307 at positions corresponding to the inner part of the cross frame 2 through threads, the bottom end of the movable plate 307 is connected to the fixed frame 308 through bolts, the bottom end of the fixed frame 308 is symmetrically connected to the electric telescopic rod 309 through bolts, the top ends of the two electric telescopic rods 309 are connected to push plates 310 at positions corresponding to the inner part of the fixed frame 308 through bolts, the bottom end of the push plate 310 is clamped with a sleeve 311, the bottom end of the sleeve 311 is connected to a mounting plate 312 at a position corresponding to the bottom of the fixed frame 308 through bolts, one end of the push plate 310 is clamped with a convex plate 313 at a position corresponding to the top of the mounting plate 312, and a welding arm 314 is connected between the convex plate 313 and the mounting plate 312 through bolts;

[0050] A slide bar 315 is movably sleeved inside the sleeve 311, and a support wheel 316 is clamped at the bottom end of the slide bar 315. Support springs 317 are clamped at the outer positions of the support wheel 316 and the sleeve 311 corresponding to the slide bar 315. A touch switch 318 is connected to the top of the push plate 310 corresponding to the top position of the sleeve 311 through bolts. In order to facilitate the adjustment of the position of the welding arm 314, both ends of the movable plate 307 are slidably connected to the inner wall of the cross frame 2. The welding arm 314 is equipped with a wire feeder and a welding gun. The top of the sleeve 311 passes through the top of the push plate 310. The electric telescopic rod 309 and the touch switch 318 are powered by an external power supply, and the signal output end of the touch switch 318 is connected to the input end of the electric telescopic rod 309.

[0051] Both ends of the horizontal frame 2 are provided with a support and adjustment mechanism 4, which includes a fixed block 401, a rotating drum 402, a sprocket 403, a chain 404, an L-shaped plate 405, a rotating motor 406, an extension rod 407, a moving seat 408, a pad 409, a support rod 410 and a telescopic support tube 411;

[0052] Fixed blocks 401 are equidistantly connected at both ends of the horizontal frame 2, and rotating drums 402 are rotatably connected inside the fixed blocks 401 at one side of the horizontal frame 2. Sprocket wheels 403 are fixedly sleeved at the outer sides of the two rotating drums 402 corresponding to the positions on one side of the horizontal frame 2, and chains 404 are sleeved on the outer sides of the two sprocket wheels 403. An L-shaped plate 405 is bolted to one end of the horizontal frame 2, and a rotating motor 406 is bolted to one end of the L-shaped plate 405. In order to facilitate the rotation of the rotating drum 402, the length of the rotating drum 402 is greater than the length of the horizontal frame 2. The output shaft of the rotating motor 406 is connected to one end of the rotating drum 402, and the rotating motor 406 is powered by an external power supply.

[0053] The two rotating drums 402 are both connected with extension rods 407 through threads, and one end of the two extension rods 407 is clamped with a moving seat 408. The bottom of the horizontal frame 2 is connected with a pad 409 through bolts near the side of the moving seat 408. The bottom of the pad 409 and the bottom of the moving seat 408 are symmetrically clamped with support rods 410, and the outside of the support rod 410 is sleeved with a telescopic support tube 411 through threads. In order to facilitate the support of the horizontal frame 2, the bottom of the moving seat 408 and the bottom of the pad 409 are both located on the same horizontal plane, a knob is fixedly sleeved at the top position of the outside of the telescopic support tube 411, and a gasket is rotatably connected at the bottom position of the outside of the telescopic support tube 411;

[0054] A welding wire placement and traction mechanism 5 is provided inside the support frame 1 and the cross frame 2. The welding wire placement and traction mechanism 5 includes a placement plate 501, a placement slot 502, a rotating rod 503, a winding roller 504, a rotating ring 505, a gasket 506, a guide roller 507, a mounting slot 508, a traction frame 509, a vertical slot 510, a slider 511, a pressure roller 512, an adjustment rod 513 and a support roller 514;

[0055] The inner wall of the support frame 1 is symmetrically connected with a placement plate 501 by bolts, and placement grooves 502 are equidistantly provided on the top of the two placement plates 501, and a rotating rod 503 is placed inside the placement groove 502. A winding roller 504 is fixedly sleeved on the outer side of the rotating rod 503, and rotating rings 505 are sleeved on the outer side of the rotating rod 503 at positions on both sides of the winding roller 504 through threads, and gaskets 506 are rotatably connected to the opposite ends of the two rotating rings 505 at positions on the outer sides of the rotating rod 503 corresponding to the outer sides of the rotating rod 503. In order to facilitate the placement of the winding roller 504, the inner diameter of the placement groove 502 is larger than the outer diameter of the rotating rod 503, and anti-slip grooves are evenly provided on the outer side of the rotating ring 505, and one end of the gasket 506 is in contact with one end of the placement plate 501;

[0056] A guide roller 507 is symmetrically rotatably connected at the top position of the placement groove 502 on the inner wall of the cross frame 2, and an installation groove 508 is opened at the top of the partition 301 and the top of the cross frame 2. A traction frame 509 is clamped inside the installation groove 508, and vertical grooves 510 are symmetrically opened on the inner wall of the traction frame 509. Slide blocks 511 are movably connected inside the two opposite vertical grooves 510, and a pressure roller 512 is rotatably connected between the two sliders 511. An adjusting rod 513 is rotatably connected to the top of the two sliders 511. A supporting roller 514 is rotatably connected at the bottom position of the pressure roller 512 on the inner wall of the traction frame 509. In order to facilitate the clamping of the welding wire, a notch is opened at the top of the movable plate 307 corresponding to the outer side of the traction frame 509, the top of the adjusting rod 513 passes through the top of the traction frame 509, and the outer side of the adjusting rod 513 is connected to the inner wall of the traction frame 509 by a thread.

[0057] The working principle and use process of the present invention are as follows: first, the rotating rod 503 is embedded into the placement groove 502, and at the same time, the rotating ring 505 is rotated to push the gasket ring 506 to move along the outer side of the rotating rod 503, so that one end of the gasket ring 506 is closely fitted with the inner wall of the placement plate 501, thereby limiting the position of the rotating rod 503 and the winding roller 504, preventing the winding roller 504 from being offset during transportation, and ensuring the transportation effect. Then, the welding wire is guided by the guide roller 507 to facilitate the welding wire to pass into the traction frame 509. At the same time, the adjusting rod 513 is rotated to push the slider 511 and the pressure roller 512 to descend along the vertical groove 510, and then cooperate with the support roller 514 to clamp the welding wire, which is convenient for guiding and conveying the welding wire and improves convenience.

[0058] Next, the annular cylinder to be welded is moved to one end of the horizontal frame 2, and then the telescopic support tube 411 at the bottom of the moving seat 408 is rotated to make the telescopic support tube 411 move up along the support rod 410 to shorten the distance, and then the rotating motor 406 is started, and the power is transmitted through the cooperation of the sprocket 403 and the chain 404, so that the two rotating cylinders 402 rotate together, pushing the extension rod 407 and the moving seat 408 to move, so that the moving seat 408 passes through the annular cylinder, and then the telescopic support tube 411 is reversed to descend, and at the same time, the support rod 410, the moving seat 408 and the fixed block 401 cooperate to support the horizontal frame 2;

[0059] Next, the telescopic support tube 411 at the bottom of the rotating pad 409 rotates and contracts to facilitate pushing the annular cylinder to the horizontal frame 2, and then the telescopic support tube 411 at the bottom of the pad 409 is reset to restore the support for the horizontal frame 2, and the rotating drum 402 is driven to reverse through the rotating motor 406 to pull the moving seat 408 to reset;

[0060] Next, the electric telescopic rod 309 is started to bring the push plate 310 down, forcing the push plate 310 to move through the sleeve 311, and through the cooperation of the mounting plate 312 and the convex plate 313, it is convenient to push the welding arm 314 to move. At the same time, during the movement of the sleeve 311, the support spring 317 brings the support wheel 316 and the slide bar 315 to slide, so that the support wheel 316 and the inner wall of the annular tube fit together. As the electric telescopic rod 309 and the push plate 310 continue to move, the support wheel 316 is squeezed, so that the slide bar 315 slides and contracts inside the sleeve 311, which facilitates the welding arm 314 to fit the inner wall of the annular tube. When the slide bar 315 and the touch switch 318 fit together, the electric telescopic rod 309 is turned off in time to stop pulling the push plate 310, thereby maintaining the fitting effect of the welding arm 314 and the annular tube, which is convenient for subsequent welding.

[0061] Finally, the traction motor 305 is started to drive the driving gear 306 to rotate, and through the cooperation of the driven gear 303, the two traction rods 302 are driven to rotate, so that the movable plate 307 slides along the inner wall of the horizontal frame 2, and the position of the fixed frame 308 and the welding arm 314 is adjusted, which makes it convenient to adjust the welding position according to needs and improves adaptability.

[0062] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-head annular cylinder inner annular seam welding device, comprising a support frame (1), characterized in that: The top of the support frame (1) is connected to a cross frame (2) by bolts, and a position adjustment and fitting mechanism (3) is arranged inside the cross frame (2). The electric telescopic rod (309) is started to push the push plate (310) and the sleeve (311) to move, adjust the position of the welding arm (314), and push the support wheel (316) to move through the support spring (317) to fit with the inner wall of the annular cylinder. At the same time, the support wheel (316) is squeezed to make the slide bar (315) slide and fit with the touch switch (318), and the electric telescopic rod (309) is closed to ensure the fitting effect of the welding arm (314) and the inner wall of the annular cylinder; Both ends of the cross frame (2) are provided with a support and adjustment mechanism (4), the telescopic support tube (411) at the bottom of the rotating movable seat (408) is retracted, and then the two rotating cylinders (402) are rotated to push the extension rod (407) and the movable seat (408) to move, pass through the annular cylinder, and then reverse the telescopic support tube (411) to descend, so as to support the cross frame (2), so as to facilitate the support of the cross frame (2) when the telescopic support tube (411) at the bottom of the rotating pad (409) is retracted; The support frame (1) and the cross frame (2) are both provided with welding wire placement and traction mechanisms (5); the rotating ring (505) is rotated to push the cushion ring (506) to move, and fit with the inner wall of the placement plate (501), thereby limiting the position of the winding roller (504) and preventing the winding roller (504) from being offset; the adjusting rod (513) is rotated to push the slider (511) and the pressure roller (512) downward, and cooperate with the support roller (514) to clamp the welding wire.

2. The multi-head annular cylinder inner annular seam welding device according to claim 1, characterized in that: The position adjustment and laminating mechanism (3) comprises a partition (301), a traction rod (302), a driven gear (303), a support plate (304), a traction motor (305), a driving gear (306), a moving plate (307), a fixing frame (308), an electric telescopic rod (309), a push plate (310), a sleeve (311), a mounting plate (312), a convex plate (313), a welding arm (314), a sliding rod (315), a supporting wheel (316), a supporting spring (317) and a touch switch (318); A partition (301) is clamped at a position on one side of the inner wall of the cross frame (2); a traction rod (302) is symmetrically rotatably connected between one end of the partition (301) and the inner wall of the cross frame (2); a driven gear (303) is fixedly sleeved at a position on the outer side of the two traction rods (302) corresponding to a position on one side of the partition (301); a support plate (304) is bolted to one end of the inner wall of the support frame (1); a traction motor (305) is bolted to the top of the support plate (304); and a driving gear (306) is clamped at one end of the output shaft of the traction motor (305) corresponding to the bottom of the two driven gears (303); The outer sides of the two traction rods (302) are equidistantly sleeved with movable plates (307) at positions corresponding to the inner sides of the cross frame (2) through threads, the bottom end of the movable plate (307) is connected to a fixed frame (308) through bolts, the bottom end of the fixed frame (308) is symmetrically connected to an electric telescopic rod (309) through bolts, the top ends of the two electric telescopic rods (309) are connected to push plates (310) at positions corresponding to the inner sides of the fixed frame (308) through bolts, the bottom ends of the push plates (310) are clamped with sleeves (311), the bottom ends of the sleeves (311) are connected to a mounting plate (312) at positions corresponding to the bottom of the fixed frame (308) through bolts, one end of the push plates (310) is clamped with a convex plate (313) at a position corresponding to the top of the mounting plate (312), and a welding arm (314) is connected between the convex plate (313) and the mounting plate (312) through bolts; A slide bar (315) is movably sleeved inside the sleeve (311), a support wheel (316) is clamped at the bottom end of the slide bar (315), support springs (317) are clamped at the support wheel (316) and the sleeve (311) at positions corresponding to the outer sides of the slide bar (315), and a touch switch (318) is connected to the top of the push plate (310) at a position corresponding to the top of the sleeve (311) through bolts.

3. The multi-head annular cylinder inner annular seam welding device according to claim 2, characterized in that: The threads on the outside of the two traction rods (302) rotate in opposite directions, the traction motor (305) is powered by an external power source, the bottom end of the partition (301) and the top end of the support frame (1) are both provided with grooves at positions corresponding to the outside of the output shaft of the traction motor (305), and the driven gear (303) and the driving gear (306) are meshed with each other.

4. The multi-head annular cylinder inner annular seam welding device according to claim 2, characterized in that: Both ends of the movable plate (307) are slidably connected to the inner wall of the cross frame (2); a wire feeder and a welding gun are mounted on the welding arm (314); the top end of the sleeve (311) passes through the top end of the push plate (310); the electric telescopic rod (309) and the touch switch (318) are powered by an external power supply, and the signal output end of the touch switch (318) is connected to the input end of the electric telescopic rod (309).

5. The multi-head annular cylinder inner annular seam welding device according to claim 1, characterized in that: The support and adjustment mechanism (4) comprises a fixed block (401), a rotating drum (402), a sprocket (403), a chain (404), an L-shaped plate (405), a rotating motor (406), an extension rod (407), a movable seat (408), a pad (409), a support rod (410) and a telescopic support tube (411); Both ends of the cross frame (2) are equidistantly clamped with fixed blocks (401), and a rotating drum (402) is rotatably connected inside the fixed blocks (401) at a position on one side of the cross frame (2), sprocket wheels (403) are fixedly sleeved at the outer sides of the two rotating drums (402) at positions corresponding to the one side of the cross frame (2), and chains (404) are sleeved at the outer sides of the two sprocket wheels (403), one end of the cross frame (2) is connected to an L-shaped plate (405) by bolts, and one end of the L-shaped plate (405) is connected to a rotating motor (406) by bolts; The two rotating drums (402) are both connected with extension rods (407) through threads, and one end of the two extension rods (407) is clamped with a moving seat (408). The bottom end of the cross frame (2) is connected with a pad (409) through bolts near one side of the moving seat (408), and the bottom end of the pad (409) and the bottom end of the moving seat (408) are symmetrically clamped with a support rod (410), and the outer side of the support rod (410) is connected with a telescopic support tube (411) through a threaded sleeve.

6. The multi-head annular cylinder inner annular seam welding device according to claim 5, characterized in that: The length of the rotating drum (402) is greater than the length of the horizontal frame (2), the output shaft of the rotating motor (406) is connected to one end of the rotating drum (402), and the rotating motor (406) is powered by an external power source.

7. The multi-head annular cylinder inner annular seam welding device according to claim 5, characterized in that: The bottom end of the movable seat (408) and the bottom end of the pad (409) are both located on the same horizontal plane, a knob is fixedly sleeved at the top position of the outer side of the telescopic support tube (411), and a gasket is rotatably connected at the bottom position of the outer side of the telescopic support tube (411).

8. The multi-head annular cylinder inner annular seam welding device according to claim 2, characterized in that: The welding wire placement and traction mechanism (5) comprises a placement plate (501), a placement groove (502), a rotating rod (503), a winding roller (504), a rotating ring (505), a gasket ring (506), a guide roller (507), a mounting groove (508), a traction frame (509), a vertical groove (510), a slider (511), a pressure roller (512), an adjustment rod (513) and a support roller (514); The inner wall of the support frame (1) is symmetrically connected with a placement plate (501) by bolts, and the tops of the two placement plates (501) are equidistantly provided with placement grooves (502), and a rotating rod (503) is placed inside the placement groove (502), and a winding roller (504) is fixedly sleeved on the outer side of the rotating rod (503), and rotating rings (505) are sleeved by threads at positions on both sides of the outer side of the rotating rod (503) corresponding to the winding roller (504), and gaskets (506) are rotatably connected at opposite ends of the two rotating rings (505) at positions on the outer side of the rotating rod (503); A guide roller (507) is symmetrically rotatably connected to the top position of the placement groove (502) on the inner wall of the cross frame (2); a mounting groove (508) is provided on the top of the partition (301) and the top of the cross frame (2); a traction frame (509) is clamped inside the mounting groove (508); vertical grooves (510) are symmetrically equidistantly provided on the inner wall of the traction frame (509); two opposite vertical grooves (510) are movably connected to sliders (511); a pressure roller (512) is rotatably connected between the two sliders (511); an adjusting rod (513) is rotatably connected to the top of the two sliders (511); and a support roller (514) is rotatably connected to the bottom position of the pressure roller (512) on the inner wall of the traction frame (509).

9. The multi-head annular cylinder inner annular seam welding device according to claim 8, characterized in that: The inner diameter of the placement groove (502) is larger than the outer diameter of the rotating rod (503), the outer side of the rotating ring (505) is evenly provided with anti-slip grooves, and one end of the gasket ring (506) is in contact with one end of the placement plate (501).

10. The multi-head annular cylinder inner annular seam welding device according to claim 8, characterized in that: A notch is provided at the top of the movable plate (307) at a position corresponding to the outer side of the traction frame (509), the top of the adjustment rod (513) passes through the top of the traction frame (509), and the outer side of the adjustment rod (513) is connected to the inner wall of the traction frame (509) through a thread.

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