Argon arc welding gun for thin-wall stainless steel water pipe

Abstract

The present application relates to the technical field of welding equipment, in particular to a kind of argon arc welding gun for thin-wall stainless steel water pipe, including welding power supply and welding gun body, the welding power supply is fixedly installed on placing plate by bolt, welding gun body is fixedly installed on placing rack, and placing rack is fixedly installed on placing plate, support frame is arranged in the horizontal extension direction of welding gun body, two groups of support frame are fixedly installed side by side on placing plate, the top of each support frame is fixedly installed with circular slide rail, the one side of circular slide rail is sleeved with sliding block, the outer ring area of sliding block is set with limit block at equal intervals, the central position of the inner ring of circular slide rail is provided with clamping assembly, the position close to limit block is provided with driving part, the position above the switch of welding gun body is provided with linkage part, driving part includes fixed frame fixedly installed on the end surface of placing plate, the present application has the characteristics of high welding efficiency, high safety and wide application range.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to an argon arc welding gun for thin-walled stainless steel water pipes. Background Technology

[0002] Argon arc welding (argon arc welding) is a welding technique that uses argon gas as a shielding gas. Also known as argon-shielded welding, it involves circulating argon gas around the arc welding area to isolate it from air and prevent oxidation. Based on the principles of ordinary arc welding, argon arc welding utilizes argon gas to protect the metal welding material. A high current melts the welding material into a liquid state on the substrate, forming a molten pool that achieves a metallurgical bond between the weld metal and the welding material. Because argon gas is continuously supplied during the high-temperature molten welding process, the welding material cannot come into contact with oxygen in the air, thus preventing oxidation. Therefore, it can weld stainless steel and ferrous metals. In welding stainless steel, the welding quality is closely related to the current, welding speed, and weld gap.

[0003] As an argon arc welding device, the argon arc welding torch mainly consists of a torch body, power supply, ceramic nozzle, and support frame. When welding stainless steel water pipes with an argon arc welding torch, because stainless steel water pipes are a type of pipe material, the operator needs to hold the welding torch and perform circumferential welding in the area to be welded. The welding angle of the torch needs to be adjusted at each welding point, which reduces the overall welding speed. The welded surface of the stainless steel water pipe is prone to deformation, resulting in poor weld quality. Summary of the Invention

[0004] In view of the problems in the existing technology, since stainless steel water pipes are a type of pipe material, during the welding process, the operator needs to hold the welding gun and perform circumferential welding in the area to be welded. When welding at each point, the welding angle of the welding gun needs to be adjusted, which reduces the overall welding speed, makes the welded surface of stainless steel water pipes prone to deformation, and results in poor welding quality, the present invention provides an argon arc welding gun for thin-walled stainless steel water pipes.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an argon arc welding torch for thin-walled stainless steel water pipes, including a welding power source and a welding torch body. The welding power source is fixedly installed on a placement plate by bolts, the welding torch body is fixedly installed on a placement frame, and the placement frame is fixedly installed on the placement plate. A support frame is provided in the horizontal extension direction of the welding torch body. Two sets of support frames are fixedly installed side by side on the placement plate. A circular slide rail is fixedly installed on the top of each support frame. A slider is sleeved on one side of the circular slide rail. Limit blocks are provided at equal intervals in the outer ring area of ​​the slider. A clamping component is provided in the center of the inner ring of the circular slide rail. A driving component is provided near the limit block. A linkage part is provided directly above the switch of the welding torch body.

[0006] The driving component includes a fixed frame fixedly mounted on the upper surface of the placement plate. Crossbars are fixedly connected to both sides of the fixed frame. A side plate is fixedly connected to the end of each crossbar. An arc-shaped slide rail is formed inside the side plate, and the arc-shaped slide rail and the circular slide rail share the same center. An arc-shaped slide plate is inserted into the arc-shaped slide rail. A handle is installed on one side wall of the arc-shaped slide plate. A first driving plate is installed on the inner wall of the arc-shaped slide plate via a first shaft. A mounting frame is fixedly mounted on the inner wall of the side plate. A second driving plate is installed on one side of the mounting frame via a second shaft. Both the first and second driving plates are mating structures with the limiting block. Torsion springs are installed at the connection points between the first shaft and the first driving plate, and between the second shaft and the second driving plate. Baffles are fixedly installed on the outer walls of both the mounting frame and the arc-shaped slide plate.

[0007] Furthermore, the clamping assembly includes a first positioning ring fixedly installed on the inner wall of the slider, a second positioning ring concentrically positioned on one side of the first positioning ring, the first positioning ring and the second positioning ring being connected and fixed by a fixing plate, and the two fixing plates being symmetrically distributed about the axis of the first positioning ring, a threaded hole being provided at the center of the fixing plate, a positioning hole being provided inside the fixing plate near the threaded hole, a threaded ball rod being installed in the threaded hole by threaded engagement, a herringbone frame being connected to one end of the threaded ball rod facing the axis of the first positioning ring, clamping rollers being installed at both ends of the bottom of the herringbone frame, a positioning rod being fixedly installed at the top of the herringbone frame, and the positioning rod being inserted into the positioning hole, and a plurality of clamping rollers arranged on the herringbone frame in the same vertical plane being combined to form a clamping area.

[0008] Furthermore, the slider has symmetrically arranged operation holes inside, the width of which should be greater than 20cm, and the number of operation holes is several.

[0009] Furthermore, the linkage includes a round rod fixedly installed on the inner wall of the two fixed frames, a rectangular rod fixedly installed at the center of the round rod, a rectangular sliding sleeve sleeved on the outer wall of the rectangular rod, a rack fixedly installed at the center of the top of the rectangular sliding sleeve, a pressing rod fixedly installed at the bottom of the rectangular sliding sleeve, a gear shaft meshing with the upper end of the rack, and the gear shaft mounted on the top of the fixed frame, with drive gear plates meshing with the two ends near the gear shaft, and the top of the drive gear plates fixedly installed on the outer wall of the arc-shaped sliding plate.

[0010] Furthermore, a protective goggle is fitted onto the outer wall of the welding gun body, and a tension spring is provided between the protective goggle and the welding gun body. A connecting rod is fixedly connected to one end edge of the protective goggle, and an extrusion plate is tightly attached to the outer wall of the connecting rod. The ends of the two extrusion plates are connected by a solid rod, and the solid rod is fixedly installed at the end of the rack.

[0011] Furthermore, the goggles are made of a high-temperature resistant, non-transparent material.

[0012] Furthermore, the length of the arc-shaped slide plate is less than the length of the circular arc slide rail, and the difference between the two is greater than the sum of the lengths of at least two of the limiting blocks. The rectangular slide sleeve is fixed to the extrusion rod with bolts, and the bottom of the rectangular slide sleeve is provided with several bolt holes at equal intervals.

[0013] Furthermore, the end of the goggles near the stainless steel water pipe is flared.

[0014] The beneficial effects of this invention are:

[0015] 1. This invention provides an argon arc welding torch for thin-walled stainless steel water pipes, comprising a clamping assembly, a driving component, and a linkage mechanism. This invention maintains the welding point position of the torch constant and achieves the overall welding process by rotating the stainless steel water pipe at equal intervals. Furthermore, the adjustment of the stainless steel water pipe position is combined with the start and stop of the welding torch, ensuring that the position adjustment time of the welding point coincides with the reset time of the switch. This effectively increases the overall welding efficiency of the device, resulting in lower welding deformation rate and higher welding quality for the stainless steel water pipe.

[0016] 2: This invention provides an argon arc welding torch for thin-walled stainless steel water pipes. During the welding process, the protective goggles can be moved to the welding point on the stainless steel water pipe to actively block the arc light generated during welding. This prevents the arc light from directly affecting the eyes and skin of the operator when they are not wearing protective equipment, thus avoiding damage to the eyes and skin. At the same time, the movement of the goggles causes the tension spring to stretch. The rebound force generated by the stretching spring will cause the goggles to reset at the same time as the arc-shaped sliding plate resets. That is, the goggles are active during welding, but not during non-welding states.

[0017] 3: The present invention provides an argon arc welding torch for thin-walled stainless steel water pipes. The clamping component of the present invention is adjustable, thus it can be applied to clamping operations of stainless steel water pipes of different sizes. When operating on stainless steel water pipes of different sizes, the distance between the extrusion rod and the switch needs to be adjusted by controlling the bolt installation position between the rectangular sliding sleeve and the extrusion rod. In this way, the sliding distance of the arc-shaped sliding plate in the arc-shaped sliding rail can be controlled according to the actual size of the stainless steel water pipe to achieve equal spacing adjustment of the welding points of stainless steel water pipes of different sizes, thereby improving the applicability. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a three-dimensional view of the overall structure of the present invention;

[0020] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0021] Figure 3 This is a partial structural cross-section of the present invention. Figure 1 ;

[0022] Figure 4 This is a partial structural cross-section of the present invention. Figure 2 ;

[0023] Figure 5 This is the present invention. Figure 4 A magnified view of a portion of region A in the middle;

[0024] Figure 6 This is the present invention. Figure 4 A magnified view of a portion of region B in the middle;

[0025] Figure 7 This is the present invention. Figure 3 A magnified view of a portion of region C in the middle;

[0026] In the diagram: 1. Welding power source; 2. Welding gun body; 3. Placement plate; 4. Support frame; 5. Circular slide rail; 6. Slider; 7. Clamping assembly; 8. Driving component; 9. Linkage part; 81. Fixing frame; 82. Crossbar; 83. Side plate; 84. Arc-shaped slide plate; 85. Grip; 86. First driving plate; 87. Second driving plate; 88. Arc-shaped slide rail; 89. Baffle; 71. First positioning ring; 72. 73. Fixed plate; 74. Threaded ball rod; 75. Herringbone frame; 76. Clamping roller; 77. Positioning hole; 78. Positioning rod; 69. Limiting block; 60. Operating hole; 91. Round rod; 92. Rectangular rod; 93. Rectangular sliding sleeve; 94. Extrusion rod; 95. Rack; 96. Gear shaft; 97. Drive gear plate; 28. Eye shield; 29. ​​Connecting rod; 20. Tension spring; 21. Extrusion plate; 22. Solid rod. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figures 1-7As shown, the argon arc welding torch for thin-walled stainless steel water pipes of the present invention includes a welding power source 1 and a welding torch body 2. The welding power source 1 is fixedly mounted on a placement plate 3 by bolts. The welding torch body 2 is fixedly mounted on a placement frame, and the placement frame is fixedly mounted on the placement plate 3. A support frame 4 is provided in the horizontal extension direction of the welding torch body 2. Two sets of support frames 4 are fixedly mounted side by side on the placement plate 3. A circular slide rail 5 is fixedly mounted on the top of each support frame 4. A slider 6 is sleeved on one side of the circular slide rail 5. Limiting blocks 61 are evenly spaced in the outer ring area. A clamping component 7 is provided in the center of the inner ring of the circular slide rail 5. A driving component 8 is provided near the limiting block 61. A linkage part 9 is provided directly above the switch of the welding gun body 2. The welding power supply 1 is connected to an external power supply. The wire of the welding gun body 2 is then plugged into the welding power supply 1. The output current is adjusted to 20A by adjusting the knob on the welding power supply 1. Finally, the argon arc welding of the stainless steel water pipe can be performed by controlling the switch on the welding gun body 2.

[0029] See Figure 2 The clamping assembly 7 includes a first positioning ring 71 fixedly installed on the inner wall of the slider 6. A second positioning ring 78 is provided concentrically on one side of the first positioning ring 71. The first positioning ring 71 and the second positioning ring 78 are connected and fixed by a fixing plate 72, and the two fixing plates 72 are symmetrically distributed about the axis of the first positioning ring 71. A threaded hole is provided in the center of the fixing plate 72. A positioning hole 76 is provided inside the fixing plate 72 near the threaded hole. A threaded ball rod 73 is installed in the threaded hole by threaded engagement. A herringbone frame 74 is connected to one end of the threaded ball rod 73 facing the axis of the first positioning ring 71. Clamping rollers 75 are installed at both ends of the bottom of the herringbone frame 74. A positioning rod 77 is fixedly installed on the top of the herringbone frame 74 and is inserted into the positioning hole 76. The clamping rollers 75 arranged on the herringbone frame 74 in the vertical plane are combined to form a clamping area. Before argon arc welding, the two stainless steel water pipes to be welded are inserted into the clamping area and manually pushed horizontally to make the welding surfaces of the two stainless steel water pipes fit tightly. Then, the two threaded ball rods 73 in the same vertical plane are rotated respectively. By rotating the threaded ball rods 73, the clamping rollers 75 are moved toward the surface of the stainless steel water pipe until the clamping rollers 75 are tightly attached to the outer wall of the stainless steel water pipe and the stainless steel water pipe cannot be manually rotated. The installation of the stainless steel water pipe is then completed. In the above operation, the positioning hole 76 limits the circumferential position of the positioning rod 77 so that the herringbone frame 74 does not rotate with the threaded ball rod 73 during the rotation of the threaded ball rod 73, but only undergoes vertical displacement.

[0030] It should be further explained that during the above process, when rotating the two threaded ball rods 73 in the same vertical plane, the displacement of the two threaded ball rods 73 relative to the herringbone frame 74 should be consistent. The method to maintain consistency is to rotate the two threaded ball rods 73 in the same vertical plane in stages by measuring with vernier calipers. The purpose is to ensure that after the stainless steel water pipe is positioned by the clamping component 7, the center of the stainless steel water pipe coincides with the center of the first positioning ring 71 and the second positioning ring 78.

[0031] See Figures 3-5 The driving component 8 includes a fixed frame 81 fixedly installed on the upper end face of the placement plate 3. Crossbars 82 are fixedly connected to both sides of the fixed frame 81. A side plate 83 is fixedly connected to the end of each crossbar 82. An arc-shaped slide rail 88 is provided inside the side plate 83, and the arc-shaped slide rail 88 and the circular slide rail 5 are concentric. An arc-shaped slide plate 84 is inserted into the arc-shaped slide rail 88. A handle 85 is installed on one side wall of the arc-shaped slide plate 84. A first driving mechanism is installed on the inner wall of the arc-shaped slide plate 84 via a first shaft. A mounting bracket is fixedly installed on the inner wall of plate 86 and side plate 83. A second drive plate 87 is mounted on one side of the mounting bracket via a second shaft. Both the first drive plate 86 and the second drive plate 87 are mating structures with the limiting block 61. Torsion springs are installed at the connection between the first shaft and the first drive plate 86 and the connection between the second shaft and the second drive plate 87. Baffles 89 are fixedly installed on the outer wall of the mounting bracket and the arc-shaped slide plate 84. In the initial state, the arc-shaped slide plate 84 is located at the bottom of the arc-shaped slide rail 88. In practice, after the stainless steel water pipe clamping operation is completed, the operator can press the switch to perform argon arc welding. After one welding operation is completed, the operator holds the handle 85 and drives the arc-shaped slide plate 84 to move along the arc-shaped slide rail 88. During the movement, the arc-shaped slide plate 84 will drive the first drive plate 86 from the initial position of the limiting block 61 to the side wall of another limiting block 61 in its adjacent position. Then, the operator drives the arc-shaped slide plate 84 to reset by holding the handle 85. During the reset process, the first drive plate 86 will drive the limiting block 61 to rotate together. The rotation of the limiting block 61 will drive the slider 6 to rotate on the side wall of the circular slide rail 5. That is, the slider 6 drives the entire clamping assembly 7 to rotate, so that the stainless steel water pipe can be quickly rotated to the next welding point. The above-mentioned method of quickly adjusting the stainless steel water pipe to be welded point effectively improves the efficiency of argon arc welding. At the same time, several equally spaced limiting blocks 61 can ensure that the position change of the stainless steel water pipe to be welded point is more accurate and the welding quality is higher.

[0032] See Figures 1-4 The slider 6 has symmetrically arranged operation holes 62 inside, and there are several operation holes 62. The operation holes 62 facilitate the operator to rotate the threaded ball rod 73. The width of the operation holes 62 should be greater than 20cm to facilitate the operator to operate with both hands.

[0033] In another embodiment, see Figures 1-6 The linkage 9 includes a round rod 90 fixedly installed on the inner wall of the two fixed frames 81. A rectangular rod 91 is fixedly installed at the center of the round rod 90. A rectangular sliding sleeve 92 is sleeved on the outer wall of the rectangular rod 91. A rack 94 is fixedly installed at the center of the top of the rectangular sliding sleeve 92. A pressing rod 93 is fixedly installed at the bottom of the rectangular sliding sleeve 92. A gear shaft 95 is meshed with the upper end of the rack 94, and the gear shaft 95 is mounted on the top of the fixed frame 81. Drive gear plates 96 are meshed with the ends of the gear shaft 95. The top of the drive gear plates 96 is fixedly installed on the outer wall of the arc-shaped sliding plate 84. When the operator moves the arc-shaped sliding plate 84, the drive gear plates 96 are simultaneously deflected. The drive gear plates 96 and the gear shaft 95 mesh with each other and drive the gear shaft 95 to rotate. The rotating gear shaft 95 then meshes with the rack 94, thereby driving the rectangular sliding sleeve 92 connected to the bottom of the rack 94 to move on the outer wall of the rectangular rod 91. The direction of movement is towards the stainless steel water pipe. After the rectangular sliding sleeve 92 moves, it drives the extrusion rod 93 to move towards the switch of the welding gun body 2 and pushes the switch to close, and the welding gun body 2 starts working. When the argon arc welding at that point is completed, the manual handle 85 drives the arc-shaped sliding plate 84 to reset. Similarly, the gear shaft 95 rotates in the opposite direction to the above, the rectangular sliding sleeve 92 resets, the extrusion rod 93 removes the extrusion force on the switch, and the switch resets immediately (the driving force for the switch reset is provided by the spring force on the switch. Any welding gun body 2 switch on the market is equipped with a spring. That is, when the spring is pressed, it is compressed. When the pressing force is removed, the spring compression generates a rebound force that drives the switch to reset). At the same time, the reset process of the switch and the reset process of the arc-shaped sliding plate 84 are executed synchronously. That is, after the welding of one point to be welded is completed, the other point to be welded on the stainless steel water pipe is replenished at the same time as the switch resets, thereby further improving the welding efficiency of the overall device and improving the welding quality.

[0034] In another embodiment, see Figures 3-7The welding gun body 2 is fitted with a protective goggle 21 on its outer wall. A tension spring 23 is provided between the protective goggle 21 and the welding gun body 2. A connecting rod 22 is fixedly connected to one end edge of the protective goggle 21. The outer wall of the connecting rod 22 is close to an extrusion plate 24. The ends of the two extrusion plates 24 are connected by a solid rod 25, which is fixedly installed at the end of the rack 94. In operation, as the rack 94 moves toward the stainless steel water pipe under the drive of the gear shaft 95, it drives the solid rod 25 to move synchronously. The solid rod 25 then drives the two extrusion plates 24 to move, so that the inclined surface of the extrusion plate 24 gradually contacts the connecting rod 22. After contact, the inclined surface of the extrusion plate 24 will press against the connecting rod 24. A compressive force is applied to the outer wall of the welding gun body 2. This compressive force acts as a driving force to move the goggle 21 on the outer wall of the welding gun body 2. During the welding process, the goggle 21 can move to the welding point of the stainless steel water pipe to block the arc light generated during welding. This method uses the goggle 21 to directly block the arc light at the welding point, thus avoiding direct impact of the arc light on the eyes and skin, preventing damage to the eyes and skin. At the same time, the movement of the goggle 21 causes the tension spring 23 to stretch. The rebound force generated when the tension spring 23 stretches will cause the goggle 21 to reset at the same time as the arc-shaped sliding plate 84 resets. That is, the goggle 21 works during welding, but does not participate in the work when not welding.

[0035] See Figure 1 The goggles 21 are made of a high-temperature resistant, non-transparent material, which increases the service life of the goggles 2.

[0036] See Figures 2-7 The length of the arc-shaped sliding plate 84 is less than the length of the circular arc slide rail 88, and the difference between the two is greater than the sum of the lengths of at least two of the limiting blocks 61. The rectangular sliding sleeve 92 is fixed to the pressing rod 93 with bolts, and the bottom of the rectangular sliding sleeve 92 is provided with several bolt holes at equal intervals. That is, when the arc-shaped sliding plate 84 is moved in the circular arc slide rail 88, the sliding distance of the arc-shaped sliding plate 84 in the circular arc slide rail 88 is sufficient to allow the first drive plate 86 to move at least to the side wall of its adjacent second and subsequent limiting blocks 61. The clamping component 7 of the present invention is adjustable, so it can be applied to the clamping operation of stainless steel water pipes of different sizes. When operating on stainless steel water pipes of different sizes, the distance between the pressing rod 93 and the switch needs to be adjusted by controlling the bolt installation position between the rectangular sliding sleeve 92 and the pressing rod 93. In this way, the sliding distance of the arc-shaped sliding plate 84 in the circular arc slide rail 88 can be controlled according to the actual size of the stainless steel water pipe to achieve equal spacing adjustment of the welding points of stainless steel water pipes of different sizes, thus improving the applicability.

[0037] See Figure 1 The end of the goggle 21 near the stainless steel water pipe is flared, which increases the end coverage area of ​​the goggle 21 and improves the eye protection effect of the goggle 21.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An argon arc welding torch for thin-walled stainless steel water pipes, comprising a welding power source (1) and a welding torch body (2), characterized in that, The welding power source (1) is fixedly installed on the placement plate (3) by bolts. The welding gun body (2) is fixedly installed on the placement frame, and the placement frame is fixedly installed on the placement plate (3). A support frame (4) is provided in the horizontal extension direction of the welding gun body (2). Two sets of support frames (4) are fixedly installed side by side on the placement plate (3). A circular slide rail (5) is fixedly installed on the top of each support frame (4). A slider (6) is sleeved on one side of the circular slide rail (5). Limit blocks (61) are provided at equal intervals in the outer ring area of ​​the slider (6). A clamping component (7) is provided in the center of the inner ring of the circular slide rail (5). A driving component (8) is provided near the limit block (61). A linkage part (9) is provided directly above the switch of the welding gun body (2). The driving component (8) includes a fixed frame (81) fixedly installed on the upper end face of the placement plate (3). A crossbar (82) is fixedly connected to both sides of the fixed frame (81). A side plate (83) is fixedly connected to the end of each crossbar (82). An arc-shaped slide rail (88) is provided inside the side plate (83), and the arc-shaped slide rail (88) and the circular slide rail (5) are concentric. An arc-shaped sliding plate (84) is inserted into the arc-shaped slide rail (88). A handle (85) is installed on one side wall of the arc-shaped sliding plate (84). 4) The inner wall is equipped with a first drive plate (86) via a first shaft. The inner side wall of the side plate (83) is fixedly equipped with a mounting bracket. The second drive plate (87) is installed on one side of the mounting bracket via a second shaft. The first drive plate (86) and the second drive plate (87) are both fitted with the limiting block (61). Torsion springs are installed at the connection between the first shaft and the first drive plate (86) and the connection between the second shaft and the second drive plate (87). The outer walls of the mounting bracket and the arc-shaped sliding plate (84) are fixedly equipped with baffles (89). The linkage part (9) includes a round rod (90) fixedly installed on the inner wall of the two fixed frames (81), a rectangular rod (91) fixedly installed at the center of the round rod (90), a rectangular sliding sleeve (92) sleeved on the outer wall of the rectangular rod (91), a rack (94) fixedly installed at the center of the top of the rectangular sliding sleeve (92), a pressing rod (93) fixedly installed at the bottom of the rectangular sliding sleeve (92), a gear shaft (95) meshing with the upper end of the rack (94), and the gear shaft (95) is mounted on the top of the fixed frame (81). A drive gear plate (96) meshes with the two ends of the gear shaft (95), and the top of the drive gear plate (96) is fixedly installed on the outer wall of the arc-shaped sliding plate (84). The outer wall of the welding gun body (2) is fitted with a goggle (21), and a tension spring (23) is provided between the goggle (21) and the welding gun body (2). A connecting rod (22) is fixedly connected to one end edge of the goggle (21), and an extrusion plate (24) is close to the outer wall of the connecting rod (22). The ends of the two extrusion plates (24) are connected by a solid rod (25), and the solid rod (25) is fixedly installed at the end of the rack (94).

2. The argon arc welding torch for thin-walled stainless steel water pipes according to claim 1, characterized in that... The clamping assembly (7) includes a first positioning ring (71) fixedly installed on the inner wall of the slider (6). A second positioning ring (78) is provided at a concentric position on one side of the first positioning ring (71). The first positioning ring (71) and the second positioning ring (78) are connected and fixed by a fixing plate (72). The two fixing plates (72) are symmetrically distributed with respect to the axis of the first positioning ring (71). A threaded hole is provided at the center of the fixing plate (72). A positioning hole (76) is provided inside the fixing plate (72) and near the threaded hole. A threaded ball rod (73) is installed in the threaded hole by threaded engagement. One end of the threaded ball rod (73) facing the axis of the first positioning ring (71) is connected to a herringbone frame (74). Clamping rollers (75) are installed at both ends of the bottom of the herringbone frame (74). A positioning rod (77) is fixedly installed on the top of the herringbone frame (74) and is inserted into the positioning hole (76).

3. The argon arc welding torch for thin-walled stainless steel water pipes according to claim 1, characterized in that... The slider (6) has symmetrically arranged operation holes (62) inside, and the number of operation holes (62) is several.

4. The argon arc welding torch for thin-walled stainless steel water pipes according to claim 1, characterized in that, The goggles (21) are made of a high-temperature resistant, non-transparent material.

5. The argon arc welding torch for thin-walled stainless steel water pipes according to claim 1, characterized in that, The length of the arc-shaped slide plate (84) is less than the length of the circular arc slide rail (88). The rectangular slide sleeve (92) and the extrusion rod (93) are fixed together by bolts, and the bottom of the rectangular slide sleeve (92) is provided with several bolt holes at equal intervals.

6. The argon arc welding torch for thin-walled stainless steel water pipes according to claim 1, characterized in that, The goggles (21) are horn-shaped at the end near the stainless steel water pipe.

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