An automated welding apparatus for a de-arching device housing

Abstract

This invention relates to the field of arch breaker shell welding technology, and specifically discloses an automated welding device for arch breaker shells. A welding component is fixedly connected to the center of the top of the workbench, and positioning components are slidably connected to both sides of the top of the workbench. Placement seats are symmetrically arranged on the top of the workbench, with their bottoms slidably connected to the top of the workbench. One end of a lead screw is rotatably connected to the inner side of the workbench. This automated welding device for arch breaker shells can pre-adjust the extension position of the support frame according to the outer diameter of the flange matching different specifications of the arch breaker cylinder, so as to adapt to the flange outer diameter. When welding the cylinder and flange, the weld area continuously experiences high temperature, resulting in thermal expansion. After cooling, it contracts, which can easily cause the flange to shift axially and radially, leading to misalignment of the circumferential seam and uneven gaps. The support frame closely adheres to the edge of the flange end face, forming a circumferential limiting constraint to prevent movement during welding.

Description

Technical Field

[0001] This invention relates to the field of arch breaker shell welding technology, specifically to an automated welding device for arch breaker shells. Background Technology

[0002] The rotary scraper-type silo arch breaker shell is the main pressure-bearing structure of the entire arch-breaking equipment. It is mostly made of carbon steel or stainless steel sheet rolled and welded, equipped with flange mounting base and sealing connection end cap. The shell has reserved space for the drive shaft and scraper operation, and the outer wall is reinforced to improve overall rigidity. It can withstand the continuous load from material extrusion and scraper rotation. The shell welds are processed by automated welding process and subjected to flaw detection to meet the wear resistance, leakage prevention, and pressure resistance requirements of long-term operation of powder and granular silos. The overall structure has excellent airtightness, which can effectively prevent dust leakage from the silo. It is suitable for various viscous material working conditions such as cement, mineral powder, and feed. It protects the internal core components such as motor, reducer, and rotating scraper from dust corrosion, and facilitates the overall hoisting and fixing of the machine to the discharge position of the cone section of the silo. At the same time, the shell is reserved with inspection and observation ports to facilitate the inspection of internal scraper wear and replacement of parts in the future. The automatic welding equipment for the arch breaker shell is a welding equipment specifically designed for the processing of arch breaker gas storage tank shells. It can automatically complete the positioning and clamping, continuous welding, weld tracking and post-weld cooling processes of the longitudinal seam of the arch breaker cylinder, the circumferential seam of the end cap, and the flange connection weld.

[0003] Chinese patent CN221716087U discloses a tooling fixture for cylindrical welded parts. Both ends of the cylindrical welded part are equipped with clamping mechanisms, each including at least one clamping component. These clamping components can clamp or release the cylindrical welded part to limit and fix it to a worktable. Support components are disposed within the inner cavity of the cylindrical welded part and correspond one-to-one with the clamping components. Each support component includes two support parts with an adjustable distance in the clamping direction of the clamping components. By adjusting the distance between the two support parts, the support parts can abut against the inner wall of the cylindrical welded part. This tooling fixture for cylindrical welded parts can stably clamp the cylindrical welded part, preventing deformation and ensuring the quality of the finished product after welding.

[0004] Although this technical solution can provide support for the inner side of the cylinder during welding, the fixed size of the support structure makes it unsuitable for cylinders with various inner diameters. When changing to different specifications of the shell, the entire support assembly needs to be replaced or pads need to be added for positioning, making the changeover operation cumbersome. In the existing technology, during the welding of the cylinder and flange circumferential seam, the high temperature of the weld seam causes the workpiece to expand thermally, and after cooling, it generates shrinkage stress. Conventional tooling only provides simple clamping from the side of the flange and lacks a limiting structure that fits against the edge of the flange end. Under heated conditions, the flange is prone to axial and radial slippage, which ultimately leads to misalignment between the cylinder and the flange and uneven weld gaps. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automated welding device for the shell of an arch breaker, comprising:

[0006] A workbench, wherein a welding component is fixedly connected to the center of the top of the workbench, and positioning components are slidably connected to both sides of the top of the workbench;

[0007] A placement seat is symmetrically arranged on the top of the workbench, and the bottom of the placement seat is slidably connected to the top of the workbench;

[0008] A lead screw, one end of which is rotatably connected to the inner side of the worktable, a drive component is fixedly connected to the side of the worktable, and the other end of the lead screw is fixedly connected to the output end of the drive component;

[0009] A guide shaft is symmetrically arranged on both sides of the worktable, and both ends of the guide shaft are fixedly connected to the side of the worktable.

[0010] The positioning component includes:

[0011] The positioning frame is connected to the inner thread of the lead screw via a slider at the bottom. Sliding blocks are fixedly connected to both sides of the positioning frame. The inner side of the sliding block is slidably connected to the side of the guide shaft. The lead screw drives the two positioning frames to move relative to each other via the slider at the bottom.

[0012] The positioning housing has a cylindrical structure. One end of the positioning housing has a circular groove. The bottom of the positioning housing is fixedly connected to the top of the positioning frame. A cylinder is fixedly connected to the inner side of the positioning housing. A mesh plate is fixedly connected to one end of the positioning housing. A support mechanism is slidably connected in the circular groove at the other end of the positioning housing.

[0013] A sliding groove is symmetrically opened on the inner side of the positioning housing. A moving mechanism is slidably connected to the inner side of the sliding groove, and the moving mechanism is fixedly connected to the output end of cylinder one.

[0014] The supporting structure includes:

[0015] A supporting housing, the side of which is slidably connected to a circular groove opened on the inner side of the positioning housing;

[0016] A sliding shaft is evenly distributed on the side of the supporting housing. One end of the sliding shaft is slidably connected to a circular groove on the inner side of the positioning housing, and the other end of the sliding shaft is fixedly connected to the supporting housing. A first spring is sleeved on the sliding shaft. One end of the first spring is fixedly connected to a circular groove on the inner side of the positioning housing, and the other end of the first spring is fixedly connected to the inner side of the supporting housing.

[0017] A support frame is arranged around a support housing, and an adjusting block is rotatably connected to the inner side of the support housing. The adjusting block moves and adjusts the support frame through a threaded rod.

[0018] Furthermore, the moving mechanism includes a moving housing, the end of which is fixedly connected to the output end of cylinder one. Moving blocks are evenly arranged on the side of the moving housing. One end of each moving block is fixedly connected to the moving housing, and the other end of each moving block is slidably connected to the inner side of a sliding groove. Cylinder two is fixedly connected to the inner side of the moving housing. An adjusting plate is fixedly connected to the output end of cylinder two. A sliding rod is fixedly connected to the other side of the adjusting plate. The other end of the sliding rod is slidably connected to the inner side of the moving housing. A second spring is sleeved on the sliding rod. One end of the second spring is fixedly connected to the inner side of the moving housing, and the other end of the second spring is fixedly connected to the adjusting plate. Connecting rods are evenly arranged on the inner side of the adjusting plate. One end of each connecting rod is rotatably connected to the inner side of the adjusting plate, and a moving frame is rotatably connected to one end of the connecting rod. The side of the moving frame is slidably connected to the inner side of the moving housing, and a roller is rotatably connected to the inner side of the moving frame.

[0019] This invention provides an automated welding device for the shell of an arch breaker. It has the following advantages:

[0020] 1. The automated welding equipment for the arch breaker shell can adjust the extension position of the support frame in advance according to the outer diameter of the flange matching the arch breaker cylinder body of different specifications, so as to adapt to the outer diameter of the flange. When welding the cylinder body and the flange, the weld area continuously generates thermal expansion due to high temperature, and shrinks after cooling. This can easily cause the flange to shift axially and radially, resulting in misalignment of the circumferential seam and uneven gap. The support frame is close to the edge of the flange end face to form a circumferential limiting constraint, which prevents the phenomenon of movement during welding.

[0021] 2. The automated welding equipment for the arch breaker shell: The arch breaker cylinder is mostly made of thin-walled carbon steel rolled shell. The flange and cylinder welding parts are relatively weak. When traditional pure rigid tooling clamps, the clamping force is too large, causing problems such as flange edge extrusion deformation, cylinder end dent, flange end face scratches, and impact damage. Spring buffer can offset the rigid impact force of mechanical propulsion in real time, transforming hard extrusion into flexible constant force clamping, protecting the appearance of flange and cylinder workpieces while ensuring the limiting and fixing effect.

[0022] 3. The automated welding equipment for the arch breaker shell uses cylinder two to push the adjusting plate to squeeze the slide rod and the second spring. This, along with the connecting rod, synchronously pushes multiple sets of moving frames to expand outward. The rollers simultaneously press against the inner wall of the cylinder. The multiple sets of rollers are evenly distributed along the circumference, forming a multi-point circumferential support for the cylinder. Unlike single-point support, this provides uniform support force and corrects the elliptical deformation caused by the rolling of the cylinder from the inside, ensuring that the cylinder maintains a standard circular cross-section throughout the welding process. The entire internal support mechanism can adjust the outer diameter of the support with cylinder two. Combined with the adjustable flange limit on the outside, it can process arch breaker cylinders with different inner and outer diameters.

[0023] 4. The automated welding equipment for the arch breaker shell prevents the thin-walled cylinder from being deformed or dented when the rollers tighten the cylinder wall, and is suitable for cylinders of various plate thicknesses, both thin and thick.

[0024] 5. The automated welding equipment for the arch breaker shell uses rollers that contact and support the inner wall of the cylinder, rather than hard friction from a rigid slider; it can perform rotary welding on the cylinder, with the rollers rotating synchronously with the cylinder wall, changing sliding friction into rolling friction, reducing wear and scratches on the inner wall of the cylinder, and ensuring the smoothness of the inner cavity of the cylinder. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the automated welding equipment for the arch-breaking device housing of the present invention;

[0026] Figure 2 This is an axonometric view of the present invention;

[0027] Figure 3 This is a schematic diagram of the positioning component of the present invention;

[0028] Figure 4 This is a schematic diagram of the positioning shell of the present invention;

[0029] Figure 5 This is a schematic diagram of the support mechanism of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the moving mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the mobile frame of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the roller of the present invention.

[0033] In the diagram: 1. Workbench; 2. Welding component; 3. Placement seat; 4. Lead screw; 5. Drive component; 6. Positioning component; 61. Positioning frame; 62. Sliding block; 63. Positioning housing; 64. Support mechanism; 641. Support housing; 642. Sliding shaft; 643. First spring; 644. Support frame; 645. Adjusting block; 65. Mesh plate; 66. Cylinder 1; 67. Moving mechanism; 671. Moving housing; 672. Moving block; 673. Moving frame; 674. Slide rod; 675. Cylinder 2; 676. Second spring; 677. Roller; 678. Adjusting plate; 679. Connecting rod; 68. Sliding groove; 7. Guide shaft. Detailed Implementation

[0034] Please see Figures 1-2 This invention provides an automated welding device for the shell of an arch breaker, comprising:

[0035] Placement seats 3 are symmetrically arranged on the top of workbench 1. The bottom of placement seats 3 is slidably connected to the top of workbench 1. The cylinder is hoisted onto the welding machine workbench 1 and placed on placement seats 3 on both sides of workbench 1. Then, the flanges at both ends are pushed to the positioning stops at the ends of the cylinder to complete the initial positioning.

[0036] Guide shafts 7 are symmetrically arranged on both sides of the worktable 1. Both ends of the guide shafts 7 are fixedly connected to the side of the worktable 1. One end of the lead screw 4 is rotatably connected to the inside of the worktable 1. A drive component 5 is fixedly connected to the side of the worktable 1. The other end of the lead screw 4 is fixedly connected to the output end of the drive component 5. Positioning components 6 are slidably connected to both sides of the top of the worktable 1. When the drive component 5 is activated, the drive component 5 drives the lead screw 4 inside the worktable 1 to rotate. The lead screw 4 drives the two sets of positioning components 6 to slide synchronously towards each other along the guide shaft 7. At the same time, the guide shaft 7 guides the positioning components 6 to press against the flanges placed on both sides of the cylinder, thus completing the workpiece clamping and positioning.

[0037] A welding component 2 is fixedly connected to the middle of the top of the workbench 1. After positioning, the welding component 2 is activated to perform welding operations on the connection weld between the cylinder and the flanges at both ends.

[0038] Example 1, please refer to Figures 3-4 The invention also includes a positioning component 6, which hoists the cylinder onto the placement seat 3 of the workbench 1, and then pushes the flanges to the positioning stops at both ends of the cylinder to complete the initial positioning.

[0039] The positioning frame 61 is connected to the inner thread of the lead screw 4 via the bottom slider. Sliding blocks 62 are fixedly connected to both sides of the positioning frame 61. The inner side of the sliding block 62 is slidably connected to the side of the guide shaft 7. The lead screw 4 drives the two positioning frames 61 to move relative to each other via the bottom slider. The drive unit 5 is activated. The output end of the drive unit 5 drives the lead screw 4 inside the worktable 1 to rotate. The lead screw 4 cooperates with the bottom slider of the positioning frame 61 to drive the two sets of positioning frames 61 to move towards each other along the worktable 1.

[0040] A support mechanism 64 is slidably connected in a circular groove at the other end of the positioning housing 63, so that the support mechanism 64 at the end of the positioning frame 61 fits against the flanges at both ends of the cylinder, thus completing the positioning of the flanges on the outside.

[0041] Sliding grooves 68 are symmetrically opened on the inner side of the positioning housing 63. A moving mechanism 67 is slidably connected to the inner side of the sliding grooves 68. The moving mechanism 67 is fixedly connected to the output end of cylinder 66. The positioning housing 63 is cylindrical. A circular groove is opened at one end of the positioning housing 63. The bottom of the positioning housing 63 is fixedly connected to the top of the positioning frame 61. Cylinder 66 is fixedly connected to the inner side of the positioning housing 63. A mesh plate 65 is fixedly connected to one end of the positioning housing 63. Then, cylinder 66 in the positioning frame 61 is activated. The output end of cylinder 66 pushes the moving mechanism 67 to slide outward along the sliding grooves 68 on the inner side of the positioning housing 63. The sliding grooves 68 provide guidance. The two sets of moving mechanisms 67 simultaneously support the inner wall of the cylinder and the inner side of the flange to complete the double clamping positioning inside and outside.

[0042] Please see Figure 5 The present invention also includes a support mechanism 64. The side of the support housing 641 is slidably connected to the circular groove opened on the inner side of the positioning housing 63. The support frame 644 is arranged around the support housing 641. An adjustment block 645 is rotatably connected to the inner side of the support housing 641. The adjustment block 645 moves and adjusts the support frame 644 through a threaded rod. Before the positioning housing 63 drives the support housing 641 to fit the flange through the positioning frame 61, the adjustment block 645 on the inner side of the support housing 641 is rotated according to the outer diameter of the flange to be welded. The adjustment block 645 adjusts and drives the support frame 644 to complete the corresponding position adjustment on the support housing 641 through the threaded rod.

[0043] After adjustment, the inner side of the support frame 644 can fit tightly against the edge of the flange end face, forming a limiting constraint on the flange and preventing the workpiece from shifting due to thermal expansion and contraction during the welding process;

[0044] Sliding shafts 642 are evenly distributed on the side of the supporting housing 641. One end of the sliding shaft 642 is slidably connected to the circular groove inside the positioning housing 63, and the other end of the sliding shaft 642 is fixedly connected to the supporting housing 641. A first spring 643 is sleeved on the sliding shaft 642. One end of the first spring 643 is fixedly connected to the circular groove inside the positioning housing 63, and the other end of the first spring 643 is fixedly connected to the inside of the supporting housing 641. When the supporting housing 641 drives the support frame 644 to press the flange edge, the supporting housing 641 slides in the circular groove inside the positioning housing 63 through the sliding shaft 642 and compresses the first spring 643 on the sliding shaft 642. The spring buffers the pressing force to avoid damage to the flange caused by the hard extrusion of the support frame 644.

[0045] Please see Figures 6-8 The invention also includes a moving mechanism 67, which can activate the cylinder 66 inside the positioning housing 63 while the support frame 644 is pressed against the flange at the end of the cylinder.

[0046] The end of the movable housing 671 is fixedly connected to the output end of the cylinder 66. Movable blocks 672 are evenly arranged on the side of the movable housing 671. One end of the movable block 672 is fixedly connected to the movable housing 671, and the other end of the movable block 672 is slidably connected to the inner side of the sliding groove 68. The output end of the cylinder 66 pushes the movable housing 671 to move inside the positioning housing 63. The movable housing 671 is guided to slide along the sliding groove 68 of the positioning housing 63 by means of the side movable blocks 672, so that the movable housing 671 extends into the cylinder.

[0047] A second cylinder 675 is fixedly connected to the inner side of the movable housing 671. An adjusting plate 678 is fixedly connected to the output end of the second cylinder 675. A slide rod 674 is fixedly connected to the other side of the adjusting plate 678. The other end of the slide rod 674 is slidably connected to the inner side of the movable housing 671. A second spring 676 is sleeved on the slide rod 674. Then, the second cylinder 675 is activated. The output end of the second cylinder 675 pushes the adjusting plate 678 forward in the movable housing 671. The adjusting plate 678 squeezes the slide rod 674 and compresses the second spring 676 on the slide rod 674.

[0048] Evenly arranged connecting rods 679 are arranged on the inner side of the adjusting plate 678. One end of the connecting rod 679 is rotatably connected to the inner side of the adjusting plate 678. The other end of the connecting rod 679 is rotatably connected to the movable frame 673. The side of the movable frame 673 is slidably connected to the inner side of the movable housing 671. The inner side of the movable frame 673 is rotatably connected to the roller 677. The adjusting plate 678 drives the movable frame 673 to extend outward along the inside of the movable housing 671 through the connecting rod 679. The roller 677 at the end of the movable frame 673 is close to the inner wall of the cylinder to realize the inner support and limit of the cylinder and prevent the cylinder from shifting during the welding process.

[0049] Specific workflow:

[0050] The cylinder is hoisted onto the welding machine workbench 1 and placed on the placement seats 3 on both sides of the workbench 1; then the flanges at both ends are pushed to the positioning stops at the ends of the cylinder to complete the initial positioning.

[0051] Start the drive unit 5, which drives the lead screw 4 inside the worktable 1 to rotate. The lead screw 4 drives the two sets of positioning components 6 to slide synchronously towards each other along the guide shaft 7. At the same time, the guide shaft 7 guides the positioning components 6 to press against the flanges placed on both sides of the cylinder, thus completing the workpiece clamping and positioning.

[0052] After positioning is completed, welding component 2 is started to perform welding operations on the connection weld between the cylinder and the flanges at both ends;

[0053] The cylinder is hoisted and placed on the placement seat 3 of the workbench 1, and then the flanges are pushed to the positioning stops at both ends of the cylinder to complete the initial positioning.

[0054] Start the drive unit 5. The output end of the drive unit 5 drives the lead screw 4 inside the worktable 1 to rotate. The lead screw 4 cooperates with the bottom slider of the positioning frame 61 to drive the two sets of positioning frames 61 to move towards each other along the worktable 1.

[0055] This causes the support mechanism 64 at the end of the positioning frame 61 to fit tightly against the flanges at both ends of the cylinder, thus completing the positioning of the flanges on the outside.

[0056] Then, the cylinder 66 inside the positioning frame 61 is activated. The output end of the cylinder 66 pushes the moving mechanism 67 to slide outward along the sliding groove 68 inside the positioning housing 63. The sliding groove 68 is used for guidance. The two sets of moving mechanisms 67 simultaneously support the inner wall of the cylinder and the inner side of the flange to complete the double clamping positioning inside and outside.

[0057] Before the positioning housing 63 drives the support housing 641 to attach to the flange via the positioning frame 61, the adjusting block 645 inside the support housing 641 is rotated according to the outer diameter of the flange to be welded. The adjusting block 645 is adjusted by the threaded rod to drive the support frame 644 to complete the corresponding position adjustment on the support housing 641.

[0058] After adjustment, the inner side of the support frame 644 can fit tightly against the edge of the flange end face, forming a limiting constraint on the flange and preventing the workpiece from shifting due to thermal expansion and contraction during the welding process;

[0059] When the supporting housing 641 drives the supporting frame 644 to press the flange edge, the supporting housing 641 slides in the circular groove in the positioning housing 63 through the sliding shaft 642 and compresses the first spring 643 on the sliding shaft 642. The spring buffers the pressing force to avoid the supporting frame 644 from hard squeezing and causing damage to the flange.

[0060] While the support frame 644 is pressed against the flange at the end of the cylinder, the cylinder 66 inside the positioning housing 63 can be activated.

[0061] The output end of cylinder 66 pushes the movable housing 671 to move inside the positioning housing 63. The movable housing 671 is guided by the side moving block 672 to slide along the sliding groove 68 of the positioning housing 63, so that the movable housing 671 extends into the cylinder.

[0062] Then, cylinder 675 is activated. The output end of cylinder 675 pushes the adjusting plate 678 forward in the movable housing 671. The adjusting plate 678 squeezes the slide rod 674 and compresses the second spring 676 on the slide rod 674.

[0063] The adjusting plate 678 drives the moving frame 673 to extend outward along the inside of the moving outer shell 671 via the connecting rod 679. The roller 677 at the end of the moving frame 673 is close to the inner wall of the cylinder to achieve inner support and limit the cylinder, preventing the cylinder from shifting during the welding process.

[0064] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automated welding device for the shell of an arch breaker, characterized in that, include: A workbench, wherein a welding component is fixedly connected to the center of the top of the workbench, and positioning components are slidably connected to both sides of the top of the workbench; A placement seat is symmetrically arranged on the top of the workbench, and the bottom of the placement seat is slidably connected to the top of the workbench; A lead screw, one end of which is rotatably connected to the inner side of the worktable, a drive component is fixedly connected to the side of the worktable, and the other end of the lead screw is fixedly connected to the output end of the drive component; A guide shaft is symmetrically arranged on both sides of the worktable, and both ends of the guide shaft are fixedly connected to the side of the worktable. The positioning component includes: The positioning frame is connected to the inner thread of the lead screw via a slider at the bottom, and sliding blocks are fixedly connected to both sides of the positioning frame; The positioning housing has a cylindrical structure. One end of the positioning housing has a circular groove. The bottom of the positioning housing is fixedly connected to the top of the positioning frame. A cylinder is fixedly connected to the inner side of the positioning housing. A mesh plate is fixedly connected to one end of the positioning housing. A support mechanism is slidably connected in the circular groove at the other end of the positioning housing. A sliding groove is symmetrically opened on the inner side of the positioning housing. A moving mechanism is slidably connected to the inner side of the sliding groove, and the moving mechanism is fixedly connected to the output end of cylinder one.

2. The automated welding equipment for the arch-breaking device shell according to claim 1, characterized in that, The supporting structure includes: A supporting housing, the side of which is slidably connected to a circular groove opened on the inner side of the positioning housing; A sliding shaft is evenly distributed on the side of the supporting housing, and a first spring is sleeved on the sliding shaft; A support frame is arranged around a support housing, and an adjusting block is rotatably connected to the inner side of the support housing. The adjusting block moves and adjusts the support frame via a threaded rod.

3. The automated welding equipment for the arch-breaking device shell according to claim 1, characterized in that: The lead screw drives two positioning frames to move relative to each other via a slider at the bottom, and the inner side of the slider is slidably connected to the side of the guide shaft.

4. The automated welding equipment for the arch-breaking device shell according to claim 2, characterized in that: One end of the sliding shaft is slidably connected to the circular groove inside the positioning housing, and the other end of the sliding shaft is fixedly connected to the supporting housing.

5. The automated welding equipment for the arch-breaking device shell according to claim 2, characterized in that: One end of the first spring is fixedly connected to the circular groove on the inner side of the positioning housing, and the other end of the first spring is fixedly connected to the inner side of the supporting housing.

6. The automated welding equipment for the arch-breaking device shell according to claim 2, characterized in that: The moving mechanism includes a movable housing, on which movable blocks are evenly arranged on the side. A second cylinder is fixedly connected to the inner side of the movable housing. An adjusting plate is fixedly connected to the output end of the second cylinder. A sliding rod is fixedly connected to the other side of the adjusting plate. The other end of the sliding rod is slidably connected to the inner side of the movable housing. A second spring is sleeved on the sliding rod. Connecting rods are evenly arranged on the inner side of the adjusting plate. A moving frame is rotatably connected to one end of the connecting rod. A roller is rotatably connected to the inner side of the moving frame.

7. The automated welding equipment for the arch-breaking device shell according to claim 6, characterized in that: One end of the movable block is fixedly connected to the movable housing, the other end of the movable block is slidably connected to the inner side of the sliding groove, and the end of the movable housing is fixedly connected to the output end of the cylinder.

8. The automated welding equipment for the arch-breaking device shell according to claim 6, characterized in that: One end of the connecting rod is rotatably connected to the inner side of the adjusting plate, and the side of the movable frame is slidably connected to the inner side of the movable outer shell.

9. An automated welding device for an arch-breaking device shell according to claim 8, characterized in that: One end of the second spring is fixedly connected to the inside of the movable housing, and the other end of the second spring is fixedly connected to the adjusting plate.

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