Low-stress storage tank welding device

Abstract

The utility model relates to the technical field of welding, in particular to a low-stress storage tank welding device which comprises an L-shaped plate, a welding machine is fixedly connected to the upper surface of the L-shaped plate, a limiting frame is arranged on the front surface of the L-shaped plate, a welding gun is arranged in the front side direction of the limiting frame, and a sliding seat is movably connected to the interior of the limiting frame. According to the device, the moving seat can be adjusted up and down and compensated in the vertical direction by rotating the second bolt, so that the limiting frame can be normally adjusted in the horizontal position and the vertical position, the adjusting stud is rotated, and the fixed frame moves towards the interior of the clamping frame under the pushing of the thread, so that the limiting frame can be adjusted in the horizontal position and the vertical position. The welding gun is clamped by matching with the clamping frame, through the design of the detachable welding gun, manual welding can be conveniently carried out on the corner position of the low-stress storage tank, the flexibility of the device in the using process is improved, and it is guaranteed that the device can be used for welding horizontal and vertical paths.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically a low-stress storage tank welding device. Background Technology

[0002] Low-stress storage tanks require manufacturing and assembly through welding, leading to the development of welding devices. Refer to announcement number CN221560256U for a description of a non-standard storage tank welding device. This device includes a support plate, a drive assembly, an adjustment assembly, an arc-shaped groove, a dust extraction assembly, casters, and a welder. When welding non-standard storage tanks, an installed telescopic component moves the welder closer to the tank for welding. The adjustment assembly causes a guide block to slide in a guide groove, and the movement of the guide block, in turn, moves the mounting plate.

[0003] Although the above-mentioned device can be height adjusted, when used for welding large tanks, there are not only horizontal welding paths but also vertical welding paths. Furthermore, when assembling components such as support legs, manual welding with a welding torch is still required. Therefore, the above-mentioned device has certain limitations in its use. Utility Model Content

[0004] The purpose of this invention is to provide a low-stress tank welding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A low-stress tank welding device includes an L-shaped plate, a welding machine is fixedly connected to the upper surface of the L-shaped plate, a limit frame is provided on the front surface of the L-shaped plate, a welding gun is provided on the front side of the limit frame, and a slide is movably connected inside the limit frame.

[0007] The upper surface of the L-shaped plate is provided with a moving mechanism, which includes a lower pressure bar, a universal wheel, and a limiting plate. The lower pressure bar is embedded and movably connected to the lower surface of the L-shaped plate. The lower surface of the lower pressure bar is threadedly connected to a leveling seat. The universal wheel is rotatably connected to the lower surface of the L-shaped plate. The limiting plate is fixedly connected to the upper surface of the L-shaped plate. The upper surface of the limiting plate is embedded and movably connected to a guide rod. The lower end of the guide rod is fixedly connected to the lower pressure bar.

[0008] Furthermore, the limiting frame is internally rotatably connected to a lead screw, which is threadedly connected to a slide block. A stepper motor is fixedly connected to the upper end of the limiting frame, and the output end of the stepper motor is fixedly connected to the lead screw.

[0009] Furthermore, the front surface of the slide is provided with a compensation mechanism, which includes a connecting seat, an extending seat, a first bolt, a cross plate, and a second bolt. The connecting seat is detachably connected to the front surface of the slide, the extending seat is nested and slidably connected to the outer surface of the connecting seat, the first bolt is rotatably connected to the outer surface of the extending seat, the first bolt and the connecting seat are threadedly connected, the cross plate is fixedly connected to the upper surface of the extending seat, the outer surface of the cross plate is slidably connected to a movable seat, the second bolt is rotatably connected to the outer surface of the cross plate, and the second bolt and the movable seat are threadedly connected.

[0010] Furthermore, the compensation mechanism also includes a snap-fit ​​bracket, an adjusting stud, and a fixing frame. The snap-fit ​​bracket is detachably connected to the outer surface of the movable seat, the adjusting stud is threadedly connected to the outer surface of the snap-fit ​​bracket, and the fixing frame is rotatably connected to one end of the adjusting stud.

[0011] Furthermore, the moving mechanism also includes a lower pressure frame and an electric push rod. The lower pressure frame is fixedly connected to the upper surface of the lower pressure bar, and the electric push rod is fixedly connected to the upper surface of the L-shaped plate. The output end of the electric push rod is fixedly connected to the lower pressure frame.

[0012] Furthermore, a reduction motor is fixedly connected to the rear surface of the L-shaped plate, a rotating seat is fixedly connected to the output end of the reduction motor, a stud is fixedly connected to the rear surface of the rotating seat, a sliding groove is provided on the front surface of the L-shaped plate, and a handwheel is threadedly connected to the outer surface of the stud.

[0013] Furthermore, a controller is fixedly connected to the upper surface of the L-shaped plate, and the rotating seat and the limiting frame are fixedly connected.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Before the leveling feet on the lower surface of the pressure bar are grounded, the device can be moved freely by the casters. After the leveling feet are grounded, rotating the leveling feet can level the device, ensuring the mobility of the device while quickly fixing it.

[0016] 2. In Figure 1 In the shown state, rotating the first bolt causes the protruding seat to slide along the connecting seat for front-to-back length compensation under the push of the thread. Rotating the second bolt causes the moving seat to slide along the cross plate for left-to-right position compensation under the push of the thread. Figure 2In the shown state, rotating the first bolt compensates for the front and rear length, while rotating the second bolt allows for vertical adjustment of the moving seat, compensating for vertical movement. This ensures that the limiting frame can be adjusted normally in both horizontal and vertical positions. Rotating the adjusting stud pushes the fixed frame into the clamping frame, which then clamps the welding gun. This detachable welding gun design facilitates manual welding of the corners of low-stress storage tanks, improving the flexibility of the device during use and ensuring that the device can weld both horizontal and vertical paths. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the storage tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of this practical filter cartridge;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the conveying mechanism of this utility model.

[0021] In the diagram: 1. L-shaped plate; 101. Gear motor; 102. Rotary seat; 103. Sliding groove; 104. Stud; 105. Handwheel; 2. Controller; 3. Welding machine; 4. Moving mechanism; 401. Lower pressure bar; 402. Leveling seat foot; 403. Caster wheel; 404. Limiting plate; 405. Guide rod; 406. Lower pressure frame; 407. Electric push rod; 5. Limiting frame; 501. Stepper motor; 502. Lead screw; 503. Slide seat; 6. Compensation mechanism; 601. Connecting seat; 602. Extending seat; 603. First bolt; 604. Horizontal plate; 605. Moving seat; 606. Second bolt; 607. Clip-on frame; 608. Fixed frame; 609. Adjusting stud; 7. Welding torch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4In this embodiment of the utility model, a low-stress tank welding device includes an L-shaped plate 1, a welding machine 3 is fixedly connected to the upper surface of the L-shaped plate 1, a limit frame 5 is provided on the front surface of the L-shaped plate 1, a welding gun 7 is provided in the front direction of the limit frame 5, and a slide 503 is movably connected inside the limit frame 5.

[0024] The upper surface of the L-shaped plate 1 is provided with a moving mechanism 4. The moving mechanism 4 includes a lower pressure bar 401, a universal wheel 403, and a limiting plate 404. The lower pressure bar 401 is embedded and movably connected to the lower surface of the L-shaped plate 1. The lower surface of the lower pressure bar 401 is threadedly connected to a leveling seat 402. The universal wheel 403 is rotatably connected to the lower surface of the L-shaped plate 1. The limiting plate 404 is fixedly connected to the upper surface of the L-shaped plate 1. The upper surface of the limiting plate 404 is embedded and movably connected to a guide rod 405. The lower end of the guide rod 405 is fixedly connected to the lower pressure bar 401.

[0025] Specifically, during use, the device is moved to the welding position of the low-stress storage tank via the moving mechanism 4, the welding machine 3 is started, and the welding torch 7 begins to work. The connection between the welding machine 3 and the welding torch 7 is existing technology and will not be elaborated upon in this article. For reference, the NBC-500 welding machine on the market can be used. Before the leveling foot 402 on the lower surface of the lower pressure bar 401 is grounded, the device can be moved freely via the caster wheel 403. After the leveling foot 402 is grounded, rotating the leveling foot 402 can level the device and support it, further limiting the position of the device. The guide rod 405, in conjunction with the limiting plate 404, guides the lifting and lowering of the lower pressure bar 401.

[0026] Example 1

[0027] like Figure 1-4 As shown, a lead screw 502 is rotatably connected inside the limiting frame 5. The lead screw 502 and the slide block 503 are threadedly connected. A stepper motor 501 is fixedly connected to the upper end of the limiting frame 5. The output end of the stepper motor 501 is fixedly connected to the lead screw 502. A controller 2 is fixedly connected to the upper surface of the L-shaped plate 1.

[0028] In this embodiment, the stepper motor 501 is started, and the output end of the stepper motor 501 drives the lead screw 502 to rotate. Under the push of the screw, the slide block 503 slides along the limiting frame 5. Figure 1 In the state shown, the welding torch 7 can be moved up and down to weld the vertical welding path.

[0029] like Figure 1-4 As shown, the moving mechanism 4 also includes a lower pressure frame 406 and an electric push rod 407. The lower pressure frame 406 is fixedly connected to the upper surface of the lower pressure bar 401, and the electric push rod 407 is fixedly connected to the upper surface of the L-shaped plate 1. The output end of the electric push rod 407 is fixedly connected to the lower pressure frame 406.

[0030] In this embodiment, the electric push rod 407 is activated, and the output end of the electric push rod 407 pushes the lower pressure frame 406 to descend, which in turn causes the lower pressure frame 406 to drive the lower pressure bar 401 to descend, so that the leveling seat 402 contacts the ground, ensuring the mobility of the device while quickly fixing the device.

[0031] Example 2

[0032] Based on Example 1, in order to overcome the problem that it is inconvenient to weld horizontal welding paths in Example 1.

[0033] like Figure 1-4 As shown, a compensation mechanism 6 is provided on the front surface of the slide 503. The compensation mechanism 6 includes a connecting seat 601, an extension seat 602, a first bolt 603, a cross plate 604, and a second bolt 606. The connecting seat 601 is detachably connected to the front surface of the slide 503. The extension seat 602 is nested and slidably connected to the outer surface of the connecting seat 601. The first bolt 603 is rotatably connected to the outer surface of the extension seat 602. The first bolt 603 and the connecting seat 601 are threadedly connected. The cross plate 604 is fixedly connected to the upper surface of the extension seat 602. A movable seat 605 is slidably connected to the outer surface of the cross plate 604. The second bolt 606 is rotatably connected to the outer surface of the cross plate 604. The second bolt 606 and the movable seat 605 are threadedly connected.

[0034] In this embodiment, Figure 1 In the indicated state, rotating the first bolt 603 causes the protruding seat 602 to slide along the connecting seat 601 for front-to-back length compensation under the push of the thread. Rotating the second bolt 606 causes the moving seat 605 to slide along the horizontal plate 604 for left-to-right position compensation under the push of the thread. Figure 2 In the state shown, rotating the first bolt 603 compensates for the front and rear length, while rotating the second bolt 606 allows for the vertical adjustment of the movable seat 605, providing compensation in the vertical direction. This enables the limit frame 5 to be adjusted normally in both horizontal and vertical positions, improving the flexibility of the device during use.

[0035] like Figure 1-4 As shown, the compensation mechanism 6 also includes a snap-fit ​​bracket 607, an adjusting stud 609, and a fixing frame 608. The snap-fit ​​bracket 607 is detachably connected to the outer surface of the movable seat 605, the adjusting stud 609 is threadedly connected to the outer surface of the snap-fit ​​bracket 607, and the fixing frame 608 is rotatably connected to one end of the adjusting stud 609.

[0036] In this embodiment, the clamping frame 607 and the movable seat 605 are detachably connected by bolts, and the initial installation angle can be adjusted. When fixing the welding torch 7, the welding torch 7 passes through the fixing frame 608, and then the adjusting stud 609 is rotated. Under the push of the thread, the fixing frame 608 moves into the clamping frame 607, and the clamping frame 607 clamps the welding torch 7. This design of the detachable welding torch 7 is convenient for manual welding of the corners of low-stress storage tanks.

[0037] like Figure 1-4 As shown, a reduction motor 101 is fixedly connected to the rear surface of the L-shaped plate 1, a rotating seat 102 is fixedly connected to the output end of the reduction motor 101, a stud 104 is fixedly connected to the rear surface of the rotating seat 102, a sliding groove 103 is provided on the front surface of the L-shaped plate 1, a handwheel 105 is threadedly connected to the outer surface of the stud 104, and the rotating seat 102 and the limiting frame 5 are fixedly connected.

[0038] In this embodiment, the geared motor 101 is started, and the output end of the geared motor 101 drives the rotating seat 102 to rotate, which can make the limiting frame 5 rotate 90 degrees. The handwheel 105 moves towards the bottom of the stud 104 under the push of the thread, so that the handwheel 105 contacts the L-shaped plate 1, thereby achieving auxiliary fixation of the rotating seat 102. This changes the shape of the limiting frame 5, making the limiting frame 5 change from vertical to horizontal, thus improving the flexibility of the limiting frame 5 when in use.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low-stress tank welding device, comprising an L-shaped plate (1), wherein a welding machine (3) is fixedly connected to the upper surface of the L-shaped plate (1), a limiting frame (5) is provided on the front surface of the L-shaped plate (1), a welding gun (7) is provided on the front side of the limiting frame (5), and a slide (503) is movably connected inside the limiting frame (5). Its features are, The upper surface of the L-shaped plate (1) is provided with a moving mechanism (4), the moving mechanism (4) comprising: The lower pressure strip (401) is embedded in the lower surface of the L-shaped plate (1), and the lower surface of the lower pressure strip (401) is threaded with a leveling seat (402); The caster wheel (403) is rotatably connected to the lower surface of the L-shaped plate (1); A limiting plate (404) is fixedly connected to the upper surface of the L-shaped plate (1). A guide rod (405) is embedded and movably connected to the upper surface of the limiting plate (404). The lower end of the guide rod (405) is fixedly connected to the lower pressure strip (401).

2. The low-stress tank welding apparatus according to claim 1, characterized in that, The limiting frame (5) is rotatably connected to a lead screw (502), and the lead screw (502) and the slide (503) are threadedly connected. The upper end of the limiting frame (5) is fixedly connected to a stepper motor (501), and the output end of the stepper motor (501) is fixedly connected to the lead screw (502).

3. The low-stress tank welding apparatus according to claim 1 or 2, characterized in that, The front surface of the slide (503) is provided with a compensation mechanism (6), the compensation mechanism (6) including: The connecting seat (601) is detachably connected to the front surface of the slide (503); The extension seat (602) is nested and slidably connected to the outer surface of the connecting seat (601); The first bolt (603) is rotatably connected to the outer surface of the protruding seat (602), and the first bolt (603) and the connecting seat (601) are threadedly connected; A horizontal plate (604) is fixedly connected to the upper surface of the extension seat (602), and a movable seat (605) is slidably connected to the outer surface of the horizontal plate (604); The second bolt (606) is rotatably connected to the outer surface of the cross plate (604), and the second bolt (606) is threadedly connected to the movable seat (605).

4. The low-stress tank welding apparatus according to claim 3, characterized in that, The compensation mechanism (6) also includes: The clip bracket (607) is detachably connected to the outer surface of the movable base (605); The adjusting stud (609) is threaded to the outer surface of the snap-fit ​​bracket (607); The fixed frame (608) is rotatably connected to one end of the adjusting stud (609).

5. The low-stress tank welding apparatus according to claim 1, characterized in that, The moving mechanism (4) also includes: The lower pressure bracket (406) is fixedly connected to the upper surface of the lower pressure strip (401); An electric push rod (407) is fixedly connected to the upper surface of the L-shaped plate (1), and the output end of the electric push rod (407) is fixedly connected to the lower pressure frame (406).

6. The low-stress tank welding apparatus according to claim 1, characterized in that, A geared motor (101) is fixedly connected to the rear surface of the L-shaped plate (1), a rotating seat (102) is fixedly connected to the output end of the geared motor (101), a stud (104) is fixedly connected to the rear surface of the rotating seat (102), a sliding groove (103) is provided on the front surface of the L-shaped plate (1), and a handwheel (105) is threadedly connected to the outer surface of the stud (104).

7. The low-stress tank welding apparatus according to claim 6, characterized in that, The controller (2) is fixedly connected to the upper surface of the L-shaped plate (1), and the rotating seat (102) and the limiting frame (5) are fixedly connected.

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