Circulating welding equipment for stainless steel pipes

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to stainless steel pipe circulating welding equipment which comprises a base frame, a welding structure is arranged on the upper surface of the base frame and comprises a welding power source, a welding head is arranged at one end of the welding power source, and the welding power source is used for controlling the welding head. An adjusting structure is arranged at the end, close to the welding structure, of the upper surface of the base frame, and a conveying structure is arranged at one end of the adjusting structure and comprises conveying rollers. Through the arrangement of the adjusting structure, when the pipe fitting is welded, the rotating frame can drive the fixed pipe fitting to rotate, comprehensive welding of the pipe fitting is achieved, after welding is completed, the transferring frame can drive the welded pipe fitting to move upwards, and after the transferring frame moves by a certain distance, the transferring frame can automatically rotate; and the pipe fittings on the surface of the transfer frame are transferred to one side, and then the two to-be-welded pipe fittings can be continuously transferred to a to-be-welded area through conveying of the conveying frame, so that circulating work is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding equipment, and specifically relates to a stainless steel pipe circulating welding equipment. Background Art

[0002] Stainless steel pipes are a type of pipe fittings, which are pipe fittings made of stainless steel materials. They are widely used in industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, and mechanical instruments, as well as mechanical structure components, and are also commonly used as furniture and kitchen utensils. Currently, in order to extend the length of the pipeline, two stainless steel pipes are butt-jointed and welded together.

[0003] A patent application with the publication number CN118616883B discloses a stainless steel pipe welding equipment, including a storage box. A support plate is slidably connected to the inner upper end of the storage box. A fixing frame is installed on the upper end of the support plate. A semi-circular limiting frame is fixedly connected to the upper end of the fixing frame. A plurality of balls are evenly rotatably connected to the inner wall of the semi-circular limiting frame. This device solves the problem that when welding the butt joint of a stainless steel pipe in a circular shape with one welding head, if several parts of the stainless steel pipe and the pipeline butt joint are not spot-welded in advance, when the welding head finishes welding one side of the stainless steel pipe butt joint, if the stainless steel pipe moves, the welded part will have a broken weld, resulting in not only slow welding efficiency but also unstable welding quality.

[0004] The above solution still has some problems in actual application. When the above welding device is welding stainless steel pipes, first, the end faces of two stainless steel pipes are butted and fixed. Then, after welding is completed, the welded stainless steel pipe is taken out, and two stainless steel pipes to be welded are placed for welding. However, some welding work of stainless steel pipes is continuous, and a large number of stainless steel pipes need to be welded each time. When the above device is welding stainless steel pipes, it is necessary to release the fixation of the welded stainless steel pipe, and then the stainless steel pipes to be welded can be placed. This step is rather cumbersome, resulting in too slow switching speed of the stainless steel pipes before and after welding, and unable to achieve cyclic batch welding.

[0005] Therefore, the present invention provides a stainless steel pipe circulating welding equipment. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A stainless steel pipe circulating welding device described in the present invention includes a base frame, on the upper surface of which there is a welding structure. The welding structure includes a welding power source, one end of the welding power source is provided with a welding head, and the welding power source is used to control the welding head. One end of the upper surface of the base frame near the welding structure is provided with an adjusting structure, and one end of the adjusting structure is provided with a conveying structure. The conveying structure includes conveying rollers; The adjusting structure includes: an adjusting frame, and two adjusting frames are arranged on the upper surface of the base frame; a clamping frame, which is rotatably connected to the inner wall of the adjusting frame; a toothed ring, which is rotatably connected to the inside of the clamping frame; meshing gears, several meshing gears are rotatably connected to the inside of the clamping frame, and the meshing gears are meshed with the toothed ring; clamping plates, several clamping plates are slidably connected to the inside of the clamping frame, and the clamping plates are meshed with the meshing gears; a transfer frame, which is slidably connected to the upper surface of the base frame up and down, and the transfer frame is arranged between the two adjusting frames; an intermittent gear, which is rotatably connected to one end of the transfer frame.

[0008] Preferably, the welding structure further includes an adjusting arm, which is arranged between the welding power source and the welding head. The conveying structure further includes: a fixing plate, which is arranged on the upper surface of the base frame; a conveying frame, which is arranged at the upper end of the fixing plate, and the conveying rollers are arranged inside the conveying frame; a conveying groove, which is opened on the surface of the conveying frame; The adjusting structure further includes: a rotating frame, which is rotatably connected to the inside of the adjusting frame, and the rotating frame is connected to the clamping frame; a sliding shaft, which is arranged at one end of the upper surface of the base frame near the transfer frame; a sliding block, which is slidably connected to the surface of the sliding shaft, and the intermittent gear is rotatably connected to the surface of the sliding block; a fixed toothed plate, which is arranged on one side of the sliding shaft, and the intermittent gear meshes with the fixed toothed plate during operation.

[0009] Preferably, several sliding rods are arranged inside the clamping frame, and the clamping plates slide on the surfaces of the sliding rods.

[0010] Preferably, several anti-slip pads are arranged on the surfaces of the clamping plates.

[0011] Preferably, two sliding frames are slidably connected inside the conveying frame, and the two sliding frames move towards each other. A grinding roller is rotatably connected inside one of the two sliding frames, and an abutting roller is rotatably connected inside the other sliding frame.

[0012] Preferably, a connecting gear is rotatably connected inside the conveying frame. One end of the sliding frame is connected with a fixed tooth plate, and the fixed tooth plate meshes with the connecting gear. An adjusting spring is arranged at one end of the sliding frame away from the conveying roller.

[0013] Preferably, a limiting rod is arranged inside the adjusting spring.

[0014] Preferably, a worm is rotatably connected inside the conveying frame, and the worm meshes with the connecting gear. The worm is connected with one of several conveying rollers.

[0015] Preferably, a liquid outlet is formed on the surface of the transfer frame. A liquid storage frame is arranged at one end of the upper surface of the base frame close to the transfer frame, and the liquid storage frame is arranged at the lower end of the transfer frame. Several spray nozzles are arranged at the upper end of the liquid storage frame. An extrusion sheet is slidably connected inside the liquid storage frame.

[0016] The beneficial effects of the present invention are as follows: 1. For a stainless steel pipe circulating welding device of the present invention, by setting an adjusting structure, when welding pipe fittings, first transfer two pipe fittings to the inside of the clamping frame through the conveying frame, and then start the rotation of the toothed ring. The clamping plate can be driven to move through the meshing gear, thereby completing the fixation of the pipe fittings. Then start the welding power supply, and the two pipe fittings can be welded. And during the welding process, start the rotating frame, which can drive the fixed pipe fittings to rotate, realizing the full - scale welding of the pipe fittings. Then after the welding is completed, start the sliding block. The sliding block will move upward, and during the moving process, the transfer frame connected to the sliding block will drive the welded pipe fittings to move upward together. After moving a certain distance, the intermittent gear at one end of the transfer frame will mesh with the fixed tooth plate, so that the intermittent gear drives the transfer frame to rotate together, and transfers the pipe fittings on the surface of the transfer frame to one side. Then through the conveying of the conveying frame again, the two pipe fittings to be welded can be continuously transferred to the area to be welded, realizing cyclic operation.

[0017] 2. For a stainless steel pipe circulating welding device of the present invention, by setting the grinding roller and the abutting roller, during the process of the conveying roller conveying the pipe fittings, the conveying roller will drive two sliding frames to move towards each other through the worm. Then the grinding roller and the abutting roller respectively located inside the two sliding frames will contact the welding part of the pipe fittings. The grinding roller will grind the oxide skin on the surface of the pipe fittings, and the abutting roller will drive the pipe fittings to rotate, thereby realizing all - around grinding and improving the subsequent welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1It is a perspective view of the first embodiment of the present invention; Figure 2 It is the front view of the first embodiment of the present invention; Figure 3 It is a perspective view of the adjustment frame of the present invention; Figure 4 It is Figure 3 The partial enlarged view at position A in Figure 5 It is the position diagram of the meshing gears of the present invention; Figure 6 It is Figure 5 The partial enlarged view at position B in Figure 7 It is a perspective view of the conveying frame of the present invention; Figure 8 It is the internal view of the conveying frame of the present invention; Figure 9 It is the position diagram of the grinding roller and the abutting roller of the present invention; Figure 10 It is the connection diagram of the sliding block and the transfer frame of the present invention; Figure 11 It is the position diagram of the liquid storage frame and the transfer frame of the present invention In the figure: 1. Base frame; 2. Welding structure; 21. Welding head; 22. Adjusting arm; 23. Welding power supply; 3. Conveying structure; 301. Fixed plate; 302. Conveying frame; 303. Conveying roller; 304. Grinding roller; 305. Adjusting spring; 306. Conveying groove; 307. Abutting roller; 308. Sliding frame; 309. Limiting rod; 310. Fixed toothed plate; 311. Connecting gear; 312. Worm; 4. Adjusting structure; 401. Adjusting frame; 402. Transfer frame; 403. Fixed toothed plate; 404. Rotating frame; 405. Clamping frame; 406. Clamping plate; 407. Meshing gear; 408. Sliding rod; 409. Tooth ring; 410. Anti-slip pad; 411. Sliding block; 412. Intermittent gear; 413. Liquid outlet; 414. Sliding shaft; 415. Liquid storage frame; 416. Extrusion piece; 417. Screw; 418. Lifting rod; 419. Spray nozzle; 5. Pipe fitting. Detailed implementation manners

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0021] Embodiment 1: As Figures 1 to 11As shown in the figure, a stainless steel pipe circular welding device according to an embodiment of the present invention includes a base frame 1. A welding structure 2 is provided on the upper surface of the base frame 1. The welding structure 2 includes a welding power source 23. One end of the welding power source 23 is provided with a welding head 21, and the welding power source 23 is used to control the welding head 21. An adjusting structure 4 is provided at one end of the upper surface of the base frame 1 close to the welding structure 2. One end of the adjusting structure 4 is provided with a conveying structure 3. The conveying structure 3 includes conveying rollers 303. The adjusting structure 4 includes: an adjusting frame 401. Two adjusting frames 401 are provided on the upper surface of the base frame 1; a clamping frame 405. The clamping frame 405 is rotatably connected to the inner wall of the adjusting frame 401; a toothed ring 409. The toothed ring 409 is rotatably connected to the inside of the clamping frame 405; meshing gears 407. A plurality of meshing gears 407 are rotatably connected to the inside of the clamping frame 405, and the meshing gears 407 are meshed with the toothed ring 409; clamping plates 406. A plurality of clamping plates 406 are slidably connected to the inside of the clamping frame 405, and the clamping plates 406 are meshed with the meshing gears 407; a transfer frame 402. The transfer frame 402 is slidably connected up and down to the upper surface of the base frame 1, and the transfer frame 402 is provided between the two adjusting frames 401; an intermittent gear 412. The intermittent gear 412 is rotatably connected to one end of the transfer frame 402.

[0022] Specifically, a stainless steel pipe circular welding device of this solution is used for welding stainless steel pipes. The stainless steel pipe is also called pipe fitting 5. When in use, first place two pipe fittings 5 on the surface of the conveying roller 303, and then start the conveying roller 303. The conveying roller 303 will drive the two pipe fittings 5 to move towards the approaching ends. Subsequently, when the end faces of the two pipe fittings 5 are butt-jointed, start the ring gear 409 to rotate. During the rotation process, the ring gear 409 will mesh with the meshing gear 407 and drive the meshing gear 407 to rotate. The meshing gear 407 will drive the clamping plate 406 to move towards the center of the pipe fitting 5, and finally clamp and fix the pipe fitting 5. At this time, start the welding power supply 23, and the welding power supply 23 will supply current to the welding head 21, forming an arc with continuous discharge between the welding head 21 and the pipe fitting 5. Then it cools and solidifies to form a dense weld structure, realizing the welding between the two pipe fittings 5. And during the welding process, start the clamping frame 405, and the clamping frame 405 will drive the pipe fitting 5 to rotate, thus realizing the full welding of the pipe fitting 5. After the welding of the two pipe fittings 5 is completed, start the transfer frame 402. The transfer frame 402 will move upward and drive the welded pipe fitting 5 to move upward together. After moving a certain distance, start the intermittent gear 412 to rotate. The intermittent gear 412 will drive the transfer frame 402 to rotate together and transfer the pipe fitting 5 on the surface of the transfer frame 402 to one side. Then start the transfer frame 402 again, and the transfer frame 402 can be reset. Since one end of the conveying roller 303 is connected to a conveyor belt that continuously conveys the pipe fittings 5, and then through the conveying of the pipe fittings 5 by the conveying roller 303 again, the two pipe fittings 5 to be welded can be continuously transferred to the area to be welded, realizing the circular welding work.

[0023] As Figures 1 to 11 shown, the welding structure 2 further includes an adjusting arm 22. The adjusting arm 22 is arranged between the welding power supply 23 and the welding head 21. The conveying structure 3 further includes: a fixed plate 301, which is arranged on the upper surface of the base frame 1; a conveying frame 302, which is arranged at the upper end of the fixed plate 301, and the conveying roller 303 is arranged inside the conveying frame 302; a conveying groove 306, which is opened on the surface of the conveying frame 302. The adjusting structure 4 further includes: a rotating frame 404, which is rotatably connected inside the adjusting frame 401, and the rotating frame 404 is connected to the clamping frame 405; a sliding shaft 414, which is arranged at one end of the upper surface of the base frame 1 close to the transfer frame 402; a sliding block 411, which is slidably connected to the surface of the sliding shaft 414, and the intermittent gear 412 is rotatably connected to the surface of the sliding block 411; a fixed toothed plate 403, which is arranged on one side of the sliding shaft 414, and the intermittent gear 412 meshes with the fixed toothed plate 403 during operation.

[0024] Specifically, when performing welding work, first place the pipe fitting 5 inside the conveying groove 306 on the surface of the conveying frame 302. Subsequently, start the rotation of the conveying roller 303, which can drive the pipe fitting 5 to move. After welding is completed, start the sliding block 411. The sliding block 411 will drive the transfer frame 402 to move upward. And after moving a certain distance, the intermittent gear 412 will engage with the fixed toothed plate 403. Subsequently, the intermittent gear 412 will drive the transfer frame 402 to rotate together, thereby transferring the pipe fitting 5 on the surface of the transfer frame 402 to one side.

[0025] As Figures 1 to 6 shown, several sliding rods 408 are provided inside the clamping frame 405, and the clamping plate 406 slides on the surface of the sliding rods 408.

[0026] Specifically, by providing the sliding rods 408, the moving direction of the clamping plate 406 can be limited during the movement of the clamping plate 406, so as to ensure that the clamping plate 406 moves towards the center of the pipe fitting 5 and avoid affecting the clamping effect.

[0027] As Figures 1 to 4 shown, several anti-slip pads 410 are provided on the surface of the clamping plate 406.

[0028] Specifically, by providing several anti-slip pads 410 on the surface of the clamping plate 406, it can not only play an anti-slip role when the clamping plate 406 contacts the pipe fitting 5, making the fixing effect better, but also reduce the wear between the clamping plate 406 and the pipe fitting 5.

[0029] Embodiment 2: As Figures 1 to 9 shown, compared with Embodiment 1, another implementation manner of the present invention is: two sliding frames 308 are slidably connected inside the conveying frame 302, and the two sliding frames 308 move towards each other. A grinding roller 304 is rotatably connected inside one of the two sliding frames 308, and a contact roller 307 is rotatably connected inside the other sliding frame 308.

[0030] Specifically, when the pipe fitting 5 is placed on the surface of the conveying roller 303 for conveying, start the sliding frame 308. The two sliding frames 308 will move towards each other. And during the movement, the grinding roller 304 and the contact roller 307 will contact the surface of the pipe fitting 5. Subsequently, start the grinding roller 304 and the contact roller 307. The grinding roller 304 will grind the oxide scale on the surface of the pipe fitting 5, and the contact roller 307 will drive the pipe fitting 5 to rotate self - rotatably, thereby achieving all - round grinding and improving the subsequent welding effect.

[0031] As Figures 1 to 9As shown, a connecting gear 311 is rotatably connected inside the conveying frame 302. One end of the sliding frame 308 is connected with a fixed tooth plate 310, and the fixed tooth plate 310 meshes with the connecting gear 311. One end of the sliding frame 308 away from the conveying roller 303 is provided with an adjusting spring 305.

[0032] Specifically, when the pipe fitting 5 is placed on the surface of the conveying roller 303 for conveying, the connecting gear 311 is started to rotate. The connecting gear 311 will mesh with the fixed tooth plate 310, thereby driving the fixed tooth plate 310 and the sliding frame 308 to move towards the pipe fitting 5. And when both the grinding roller 304 and the abutting roller 307 contact the pipe fitting 5, the connecting gear 311 and the fixed tooth plate 310 will no longer mesh. At this time, the adjusting spring 305 will pull the fixed tooth plate 310 in the direction away from the pipe fitting 5. However, during the pulling process, the connecting gear 311 will continue to mesh with the fixed tooth plate 310, which can not only ensure that both the grinding roller 304 and the abutting roller 307 always contact the pipe fitting 5, but also enable the force of the grinding roller 304 and the abutting roller 307 contacting the pipe fitting 5 not to be too large or too small.

[0033] As Figure 8 shown, a limiting rod 309 is arranged inside the adjusting spring 305.

[0034] Specifically, since the grinding roller 304 and the abutting roller 307 are in contact with the pipe fitting 5, by arranging the limiting rod 309 inside the adjusting spring 305, the direction of the deformation of the adjusting spring 305 can always be the horizontal direction, thus ensuring that the contact between both the grinding roller 304 and the abutting roller 307 and the pipe fitting 5 is more accurate.

[0035] As Figures 1 to 8 shown, a worm 312 is rotatably connected inside the conveying frame 302, and the worm 312 meshes with the connecting gear 311. The worm 312 is connected to one of several conveying rollers 303.

[0036] Specifically, by setting the worm 312 to be connected to the conveying roller 303, when the conveying roller 303 conveys the pipe fitting 5, the conveying roller 303 can drive the worm 312 to rotate. Since the worm 312 meshes with the connecting gear 311, the connecting gear 311 will rotate automatically at this time.

[0037] As Figure 11 shown, a liquid outlet 413 is formed on the surface of the transfer frame 402. One end of the upper surface of the base frame 1 close to the transfer frame 402 is provided with a liquid storage frame 415, and the liquid storage frame 415 is arranged at the lower end of the transfer frame 402. Several spray nozzles 419 are arranged at the upper end of the liquid storage frame 415. An extrusion sheet 416 is slidably connected inside the liquid storage frame 415.

[0038] Specifically, by arranging a liquid storage frame 415 at the lower end of the transfer frame 402, before welding work is carried out, first place a splash-proof agent inside the liquid storage frame 415. Then, after the pipe fitting 5 is clamped and fixed, start the extrusion sheet 416. The extrusion sheet 416 will move upward, thereby squeezing the splash-proof agent inside the liquid storage frame 415 to be sprayed out from the spray nozzle 419 and finally sprayed onto the surface of the pipe fitting 5. And during the spraying process, start the clamping frame 405 to rotate, so that all aspects of the pipe fitting 5 can be sprayed with the splash-proof agent, and the attachment of welding slag can be reduced during the subsequent welding work, facilitating subsequent cleaning.

[0039] As Figure 11 shown, a screw rod 417 is rotatably connected inside the liquid storage frame 415, and the extrusion sheet 416 is threadedly connected to the screw rod 417. One end of the screw rod 417 is rotatably connected to a lifting rod 418, and the extrusion sheet 416 slides on the surface of the lifting rod 418.

[0040] Specifically, after the pipe fitting 5 is clamped and fixed, start the screw rod 417 to rotate. Since the extrusion sheet 416 is threadedly connected to the screw rod 417 and the extrusion sheet 416 slides on the surface of the lifting rod 418, the extrusion sheet 416 will move upward at this time, thereby squeezing and spraying out the splash-proof agent inside the liquid storage frame 415.

[0041] Working principle: When in use, first place the pipe fitting 5 inside the conveying groove 306 on the surface of the conveying frame 302. Subsequently, start the conveying roller 303. The conveying roller 303 will drive the two pipe fittings 5 to move towards the ends close to each other. Then, when the end faces of the two pipe fittings 5 are butt-jointed, start the rotation of the toothed ring 409. During the rotation of the toothed ring 409, it will engage with the meshing gear 407 and drive the meshing gear 407 to rotate. The meshing gear 407 will drive the clamping plate 406 to move towards the center of the pipe fitting 5, and finally clamp and fix the pipe fitting 5. At this time, start the welding power source 23. The welding power source 23 will supply current to the welding head 21, forming an arc that continuously discharges between the welding head 21 and the pipe fitting 5. Then, it cools and solidifies to form a dense weld structure, realizing the welding between the two pipe fittings 5. And during the welding process, start the clamping frame 405. The clamping frame 405 will drive the pipe fitting 5 to rotate, thereby realizing the full welding of the pipe fitting 5. After the welding of the two pipe fittings 5 is completed, start the sliding block 411. The sliding block 411 will drive the transfer frame 402 to move upward. And after moving a certain distance, the intermittent gear 412 will engage with the fixed toothed plate 403. Subsequently, the intermittent gear 412 will drive the transfer frame 402 to rotate together and transfer the pipe fitting 5 on the surface of the transfer frame 402 to one side. Then, start the transfer frame 402 again, and the transfer frame 402 can be reset. Since one end of the conveying roller 303 is connected to a conveyor belt that continuously conveys the pipe fitting 5, and then through the conveying of the pipe fitting 5 by the conveying roller 303 again, the two pipe fittings 5 to be welded can be continuously transferred to the area to be welded, realizing the cyclic welding work.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A stainless steel pipe circular welding device, characterized in that: It includes a base frame (1), on the upper surface of the base frame (1) there is a welding structure (2), the welding structure (2) includes a welding power source (23), one end of the welding power source (23) is provided with a welding head (21), and the welding power source (23) is used to control the welding head (21). At one end of the upper surface of the base frame (1) near the welding structure (2) there is an adjusting structure (4), and at one end of the adjusting structure (4) there is a conveying structure (3), the conveying structure (3) includes a conveying roller (303); The adjusting structure (4) includes: Adjusting frames (401), two of the adjusting frames (401) are arranged on the upper surface of the base frame (1); A clamping frame (405), the clamping frame (405) is rotatably connected to the inner wall of the adjusting frame (401); A toothed ring (409), the toothed ring (409) is rotatably connected inside the clamping frame (405); Meshing gears (407), several of the meshing gears (407) are rotatably connected inside the clamping frame (405), and the meshing gears (407) are meshed with the toothed ring (409); Clamping plates (406), several of the clamping plates (406) are slidably connected inside the clamping frame (405), and the clamping plates (406) are meshed with the meshing gears (407); A transfer frame (402), the transfer frame (402) is slidably connected up and down on the upper surface of the base frame (1), and the transfer frame (402) is arranged between the two adjusting frames (401); An intermittent gear (412), the intermittent gear (412) is rotatably connected to one end of the transfer frame (402).

2. The circulating welding equipment for stainless steel pipes according to claim 1, characterized in that: The welding structure (2) further includes an adjusting arm (22), the adjusting arm (22) is arranged between the welding power source (23) and the welding head (21), and the conveying structure (3) further includes: A fixing plate (301), the fixing plate (301) is arranged on the upper surface of the base frame (1); A conveying frame (302), the conveying frame (302) is arranged at the upper end of the fixing plate (301), and the conveying roller (303) is arranged inside the conveying frame (302); A conveying groove (306), the conveying groove (306) is opened on the surface of the conveying frame (302); The adjusting structure (4) further includes: A rotating frame (404), the rotating frame (404) is rotatably connected inside the adjusting frame (401), and the rotating frame (404) is connected to the clamping frame (405); A sliding shaft (414), the sliding shaft (414) is arranged at one end of the upper surface of the base frame (1) near the transfer frame (402); A sliding block (411), the sliding block (411) is slidably connected to the surface of the sliding shaft (414), and the intermittent gear (412) is rotatably connected to the surface of the sliding block (411); A fixed toothed plate (403), the fixed toothed plate (403) is provided on one side of the sliding shaft (414), and the intermittent gear (412) meshes with the fixed toothed plate (403) during operation.

3. A stainless steel pipe cyclic welding device according to claim 2, characterized in that: A plurality of sliding rods (408) are provided inside the clamping frame (405), and the clamping plate (406) slides on the surface of the sliding rods (408).

4. A stainless steel pipe circular welding device according to claim 3, characterized in that: A plurality of anti-slip pads (410) are provided on the surface of the clamping plate (406).

5. A stainless steel pipe circular welding device according to claim 2, characterized in that: Two sliding frames (308) are slidably connected inside the conveying frame (302), and the two sliding frames (308) move towards each other. A grinding roller (304) is rotatably connected inside one of the two sliding frames (308), and an abutting roller (307) is rotatably connected inside the other sliding frame (308).

6. The stainless steel pipe circulating welding equipment according to claim 5, characterized in that: A connecting gear (311) is rotatably connected inside the conveying frame (302). One end of the sliding frame (308) is connected with a fixed toothed plate (310), and the fixed toothed plate (310) meshes with the connecting gear (311). An adjusting spring (305) is provided at the end of the sliding frame (308) away from the conveying roller (303).

7. A stainless steel pipe circular welding device according to claim 6, characterized in that: A limiting rod (309) is provided inside the adjusting spring (305).

8. A stainless steel pipe cyclic welding device according to claim 6, characterized in that: A worm (312) is rotatably connected inside the conveying frame (302), and the worm (312) meshes with the connecting gear (311). The worm (312) is connected to one of the plurality of conveying rollers (303).

9. A stainless steel pipe cyclic welding device according to claim 2, characterized in that: A liquid outlet (413) is formed on the surface of the transfer frame (402). A liquid storage frame (415) is provided at one end of the upper surface of the base frame (1) close to the transfer frame (402), and the liquid storage frame (415) is provided below the transfer frame (402). A plurality of spray nozzles (419) are provided at the upper end of the liquid storage frame (415). A pressing piece (416) is slidably connected inside the liquid storage frame (415).

10. A stainless steel pipe cyclic welding device according to claim 9, characterized in that: A screw rod (417) is rotatably connected inside the liquid storage frame (415), and the pressing piece (416) is threadedly connected with the screw rod (417). One end of the screw rod (417) is rotatably connected with a lifting rod (418), and the pressing piece (416) slides on the surface of the lifting rod (418).

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