A multi-head automated inside-groove welding system

Abstract

The application discloses a kind of multi-head automatic inner girth weld system, including mounting rod, the top of the mounting rod is provided with mounting hole, the top of the mounting rod is correspondingly positioned at clamping with mounting plate, the bottom of the mounting plate is installed with telescopic welder, one side end surface of the mounting rod is welded with rotating seat, the inside of the rotating seat is rotatably installed with connecting rod, the outside of the connecting rod is welded with positioning iron block, one side end surface of the positioning iron block is welded with support rod, one side end surface of the mounting rod is embedded with electromagnet, the bottom of the mounting rod is provided with moving plate, the structure of the present application is scientific and reasonable, safe and convenient to use, multiple telescopic welders can simultaneously weld seam fast uniform speed welding, and the machine will not be tired so that it can continuously accurately weld seam, reduce the failure of weld seam welding caused by worker fatigue, improve weld quality while ensuring the overall quality and quality of annular pipe.

Description

Technical Field

[0001] This invention relates to the field of circumferential pipe welding technology, specifically to an automated internal circumferential weld system with multiple welding heads. Background Technology

[0002] Currently, the welding of internal reinforcing ribs in round tank trucks is still mostly done manually, especially in the field of pressure vessel special vehicles, where there are many reinforcing ribs to weld. For example, a 52.6m³ LNG vehicle has as many as 55 welds. This is a huge workload for workshop welding work. From a traditional perspective, only by increasing the number of personnel can production efficiency be improved. However, the strength of the weld is an important indicator of the quality of ring pipe products.

[0003] However, most existing welding methods involve manual, multi-stage welding, which requires workers to squat during the process. This is not only labor-intensive and tiring, but also prone to errors after prolonged work, leading to welding deviations and reducing the quality of the annular pipe. To avoid these technical problems, it is indeed necessary to provide a multi-head automated inner annular seam welding system to overcome the aforementioned defects in the existing technology. Summary of the Invention

[0004] This invention provides a multi-head automated inner circumferential seam welding system, which can effectively solve the problem mentioned in the background art that most existing welding methods are manual and multi-stage welding. During the welding process, workers need to squat to work, which is not only labor-intensive and tiring, but also prone to errors after long-term work, resulting in welding deviations and thus reducing the quality of the circumferential pipe.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated internal circumferential weld system with multiple welding heads, comprising a mounting rod, wherein a welding moving component is mounted on the top of the mounting rod;

[0006] The welding moving assembly includes mounting holes, snap-fit ​​grooves, mounting plates, gaskets, fixing screws, telescopic welding machines, rotating seats, connecting rods, positioning iron blocks, support rods, electromagnets, moving plates, moving grooves, rollers, slide rails, sliding groove plates, support rollers, servo motors, positioning threaded holes, positioning screws, and servo motor seats.

[0007] The top end of the mounting rod has a mounting hole, and a mounting plate is snapped into the top end of the mounting rod at the position corresponding to the mounting hole. A telescopic welding machine is installed at the bottom end of the mounting plate.

[0008] A rotating seat is welded to one end face of the mounting rod, a connecting rod is rotatably mounted on the inner side of the rotating seat, a positioning iron block is welded to the outer side of the connecting rod, a support rod is welded to one end face of the positioning iron block, and an electromagnet is embedded in one end face of the mounting rod.

[0009] The bottom of the mounting rod is provided with a movable plate, the inner side of which has a movable groove. A roller is rotatably installed on the inner side of the movable groove. A slide rail is welded to the top of the movable plate. A sliding groove plate is slidably installed on the outer side of the slide rail. A support roller is installed at the top position of the inner side of the sliding groove plate. A servo motor mount is installed on one end face of the sliding groove plate. A servo motor is installed on the inner side of the servo motor mount. A positioning threaded hole is provided at the top of the slide rail. A positioning screw is threadedly connected to the inner side of the positioning threaded hole.

[0010] Preferably, the inner side of the mounting rod is provided with a snap-fit ​​groove, the top of the mounting plate is welded with a gasket, and the inner side of the gasket is threaded with a fixing screw.

[0011] Preferably, the top end of the mounting rod has two sets of mounting holes, which are symmetrically located at the top of the mounting rod.

[0012] Preferably, the inner side of the rotating seat and the connecting rod are provided with a movable groove, and the connecting rod is rotatably connected to the rotating seat through the movable groove.

[0013] Preferably, two sliding groove plates are provided, and the two sliding groove plates are symmetrically slidably installed on the outer side of the slide rail. A sliding slot is opened at the bottom end of the sliding groove plate at the corresponding position of the slide rail.

[0014] Preferably, the drive end of the servo motor passes through the sliding groove plate and is welded to the support roller, and the input end of the servo motor is electrically connected to the output end of the external power supply.

[0015] Preferably, a plurality of positioning threaded holes are provided, and the plurality of positioning threaded holes are equally spaced at the top position of the slide rail, and the input end of the electromagnet is electrically connected to the output end of an external power supply.

[0016] Preferably, a displacement component is installed at the bottom end of the mounting rod;

[0017] The displacement assembly includes a base plate, a load-bearing plate, a partition plate, a limiting groove plate, a rotating groove, a drag-reducing roller, a limiting seat, a moving three-phase motor, a drive gear, a driven tooth groove, a limiting slide groove, reinforcing ribs, and a material chamber.

[0018] The mounting rod has a base plate at its bottom, a load-bearing plate welded to the top of the base plate, a partition plate welded to one side of the load-bearing plate, a limit groove plate welded to the top of the load-bearing plate, a rotating groove opened at the bottom of the limit groove plate, a drag-reducing roller rotatably installed inside the rotating groove, and a limit seat welded to one side of the load-bearing plate.

[0019] A limiting seat is installed on one end face of the load-bearing plate, a movable three-phase motor is installed on the inner side of the limiting seat, a drive gear is connected to the transmission end of the movable three-phase motor, a driven tooth groove is opened on the outer side of the mounting rod, a limiting slide groove is opened on the inner side of the limiting groove plate, a reinforcing rib is welded on one end face of the load-bearing plate, and a material chamber is formed between the partition plate and the limiting groove plate.

[0020] Preferably, there are two load-bearing plates, which are symmetrically welded to the top of the base plate, and several drag-reducing rollers are provided, which are equidistantly installed on the inner side of the limiting groove plate.

[0021] Preferably, the drive gear meshes with the driven gear, and the input terminal of the mobile three-phase motor is electrically connected to the output terminal of an external power supply.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use.

[0023] 1. Equipped with a welding moving assembly, multiple telescopic welding machines can simultaneously perform rapid and uniform welding on the weld seam. The machines do not experience fatigue, allowing for continuous and precise welding, reducing weld failures due to worker fatigue, improving weld quality, and ensuring the overall quality of the annular pipe. During welding, the sliding groove plates can be slid along the outside of the slide rail according to the diameter of the annular pipe, moving both sides to their corresponding positions. Then, the positioning screws are passed through the sliding groove plates and tightened into the corresponding positioning threaded holes to fix the sliding groove plates. This allows for the processing of annular pipes of different diameters, further improving processing efficiency.

[0024] 2. Equipped with a displacement component, the extension length of the mounting rod is adjusted according to the length of the annular pipe. This prevents the rod from being too short to allow for simultaneous processing of multiple welds, and also prevents it from wobbling due to being too long. This ensures the welding stability of the telescopic welding machine, making it suitable for welding different annular pipes. Furthermore, extending the mounting rod to the appropriate length increases welding stability, improves welding quality, and further guarantees the quality of the annular pipe after welding. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the welding moving component of the present invention;

[0029] Figure 3 This is a schematic diagram of the installation structure of the electromagnet of the present invention;

[0030] Figure 4 This is a schematic diagram of the installation structure of the slide rail of the present invention;

[0031] Figure 5 This is a schematic diagram of the mounting structure of the servo motor of the present invention;

[0032] Figure 6 This is a schematic diagram of the installation structure of the displacement component of the present invention;

[0033] Numbered in the diagram: 1. Mounting rod;

[0034] 2. Welding moving components; 201. Mounting hole; 202. Snap-fit ​​groove; 203. Mounting plate; 204. Gasket; 205. Fixing screw; 206. Telescopic welding machine; 207. Rotating seat; 208. Connecting rod; 209. Positioning block; 210. Support rod; 211. Electromagnet; 212. Moving plate; 213. Moving groove; 214. Roller; 215. Slide rail; 216. Sliding groove plate; 217. Support roller; 218. Servo motor; 219. Positioning threaded hole; 220. Positioning screw; 221. Servo motor base;

[0035] 3. Displacement assembly; 301. Base plate; 302. Load-bearing plate; 303. Partition plate; 304. Limiting groove plate; 305. Rotating groove; 306. Drag-reducing roller; 307. Limiting seat; 308. Moving three-phase motor; 309. Drive gear; 310. Driven gear groove; 311. Limiting slide groove; 312. Reinforcing rib; 313. Material chamber. Detailed Implementation

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] Example: Figure 1-6 As shown, the present invention provides a technical solution, an automated internal circumferential seam welding system with multiple welding heads, including a mounting rod 1, on which a welding moving component 2 is mounted;

[0038] The welding moving assembly 2 includes a mounting hole 201, a snap-fit ​​groove 202, a mounting plate 203, a gasket 204, a fixing screw 205, a telescopic welding machine 206, a rotating seat 207, a connecting rod 208, a positioning iron block 209, a support rod 210, and an electromagnet 211.

[0039] The top end of the mounting rod 1 is provided with a mounting hole 201. There are two sets of mounting holes 201 at the top end of the mounting rod 1. The mounting holes 201 are symmetrically opened at the top position of the mounting rod 1, which is conducive to fixing the mounting plate 203 to different positions. The mounting plate 203 is snapped into the top end of the mounting rod 1 at the position corresponding to the mounting hole 201. The bottom end of the mounting plate 203 is equipped with a telescopic welding machine 206.

[0040] A rotating seat 207 is welded to one end face of the mounting rod 1. A connecting rod 208 is rotatably mounted on the inner side of the rotating seat 207. A positioning iron block 209 is welded to the outer side of the connecting rod 208. A movable groove is opened between the inner side of the rotating seat 207 and the connecting rod 208. The connecting rod 208 is rotatably connected to the rotating seat 207 through the movable groove, which facilitates fixing the positioning iron block 209. A support rod 210 is welded to one end face of the positioning iron block 209. An electromagnet 211 is embedded in one end face of the mounting rod 1.

[0041] A movable plate 212 is provided at the bottom of the mounting rod 1. A movable groove 213 is provided on the inner side of the movable plate 212. A roller 214 is rotatably mounted on the inner side of the movable groove 213. A slide rail 215 is welded to the top of the movable plate 212. A sliding groove plate 216 is slidably mounted on the outer side of the slide rail 215. Two sliding groove plates 216 are provided, and the two sliding groove plates 216 are symmetrically slidably mounted on the outer side of the slide rail 215. A sliding slot is provided at the bottom end of the sliding groove plate 216 corresponding to the position of the slide rail 215, which facilitates the rapid sliding of the sliding groove plate 216. A support roller 217 is installed at the top position of the inner side of the sliding groove plate 216. A side end face of the sliding groove plate 216 is equipped with... A servo motor mount 221 is provided, and a servo motor 218 is mounted on the inner side of the servo motor mount 221. The transmission end of the servo motor 218 passes through the sliding groove plate 216 and is welded to the support roller 217. The input end of the servo motor 218 is electrically connected to the output end of the external power supply to facilitate driving the roller 214. A positioning threaded hole 219 is provided at the top of the slide rail 215. Several positioning threaded holes 219 are provided and are equidistantly located at the top position of the slide rail 215. The input end of the electromagnet 211 is electrically connected to the output end of the external power supply to facilitate fixing the sliding groove plate 216. A positioning screw 220 is threadedly connected to the inner side of the positioning threaded hole 219.

[0042] The mounting rod 1 has a snap-fit ​​groove 202 on its inner side, and a gasket 204 is welded to the top of the mounting plate 203. The inner side of the gasket 204 is threaded with a fixing screw 205 to facilitate fixing the mounting plate 203.

[0043] A displacement component 3 is installed at the end of the mounting rod 1;

[0044] The displacement assembly 3 includes a base plate 301, a load-bearing plate 302, a partition plate 303, a limiting groove plate 304, a rotating groove 305, a drag-reducing roller 306, a limiting seat 307, a moving three-phase motor 308, a drive gear 309, a limiting slide 311, a reinforcing rib 312, and a material chamber 313.

[0045] The bottom of the mounting rod 1 is provided with a base plate 301, the top of the base plate 301 is welded with a load-bearing plate 302, a partition plate 303 is welded to one side of the load-bearing plate 302, a limiting groove plate 304 is welded to the top of the load-bearing plate 302, a rotating groove 305 is opened at the bottom of the limiting groove plate 304, a drag-reducing roller 306 is rotatably installed on the inner side of the rotating groove 305, there are two load-bearing plates 302, the two load-bearing plates 302 are symmetrically welded at the top position of the base plate 301, there are several drag-reducing rollers 306, the several drag-reducing rollers 306 are equidistantly installed on the inner side of the limiting groove plate 304, which is conducive to the sliding of the mounting rod 1, and a limiting seat 307 is welded to one side of the load-bearing plate 302.

[0046] A limiting seat 307 is installed on one side of the load-bearing plate 302. A movable three-phase motor 308 is installed on the inner side of the limiting seat 307. A drive gear 309 is connected to the transmission end of the movable three-phase motor 308. A driven tooth groove 310 is opened on the outer side of the mounting rod 1. The drive gear 309 meshes with the driven tooth groove 310. The input of the movable three-phase motor 308 is electrically connected to the output end of an external power supply to facilitate the rapid movement of the mounting rod 1. A limiting groove 311 is opened on the inner side of the limiting groove plate 304. A reinforcing rib 312 is welded on one side of the load-bearing plate 302. A material chamber 313 is formed between the partition plate 303 and the limiting groove plate 304.

[0047] The working principle and usage process of this invention are as follows: First, the operator places the pipe to be internally welded onto the support rollers 217 on top of multiple movable plates 212. Then, according to the number of welds required, the operator can remove the telescopic welding machine 206 from the inside of the material chamber 313. Next, according to the position of the weld, the mounting plate 203 is placed inside the corresponding mounting hole 201. Then, using gaskets 204 and fixing screws 205, the mounting plate 203 and the telescopic welding machine 206 are fixed to the inside of the snap-fit ​​groove 202, thereby allowing multiple telescopic welds to be welded. The shrink welding machine 206 is placed in the corresponding position. Then, the operator controls the moving plate 212 to move the annular tube, so that the annular tube can still be moved to the outside of the mounting rod 1. Then, the positioning iron block 209 is rotated on the inside of the rotating seat 207 through the connecting rod 208. Then the support rod 210 can be supported on the ground. At this time, the electromagnet 211 is turned on, so that the positioning iron block 209 can be attracted and fixed by the electromagnet 211, so that the weld can be moved to the bottom position of the telescopic welding machine 206. At this time, the telescopic welding machine 206 can be moved to the weld position.

[0048] Next, the servo motor 218 inside the servo motor base 221 is started. At this time, the servo motor 218 can drive the support roller 217 to rotate, thereby driving the annular tube to rotate on the outside of the support roller 217. At this time, the telescopic welding machine 206 is controlled to weld the annular tube while rotating the annular tube, so that all the welds of the annular tube can be welded simultaneously and quickly. Multiple telescopic welding machines 206 can simultaneously weld the welds quickly and evenly, and the machine will not be fatigued, so it can continuously and accurately weld the welds, reducing the weld failure caused by worker fatigue, improving the weld quality, and ensuring the overall quality of the annular tube. Then, during welding, the sliding groove plate 216 can be slid on the outside of the slide rail 215 according to the diameter of the annular tube, so that the sliding groove plates 216 on both sides are slid to the corresponding positions. Then, the positioning screw 220 is passed through the sliding groove plate 216 and tightened into the inner side of the corresponding positioning thread hole 219, so that the sliding groove plate 216 can be fixed. At this time, annular tubes of different diameters can be processed, further improving the processing efficiency.

[0049] Finally, before welding the annular tube, the operator can slide the mounting rod 1 inside the limiting groove plate 304 according to the length of the annular tube. At this time, the inner moving three-phase motor 308 of the limiting seat 307 is activated, which drives the drive gear 309 to rotate. The drive gear 309 and the driven tooth groove 310 can drive the mounting rod 1 to slide inside the limiting groove plate 304. At this time, the mounting rod 1 can slide on the drag-reducing roller 306, so that the mounting rod 1 can be slid to the inner position of the annular tube. The extension length of the mounting rod 1 can be adjusted according to the length of the annular tube to prevent it from being too short to process multiple welds at the same time, and to prevent the mounting rod 1 from shaking due to being too long. This ensures the welding stability of the telescopic welding machine 206, which can be adapted to the welding of different annular tubes. After the mounting rod 1 extends to an appropriate length, it can increase the welding stability, improve the welding quality, and further ensure the quality of the annular tube after welding.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-head automated internal girth welding system comprising a mounting bar (1), characterized in that: The top end of the mounting rod (1) is provided with a mounting hole (201), and the top end of the mounting rod (1) is clamped with a mounting plate (203) at the corresponding position of the mounting hole (201); the bottom end of the mounting plate (203) is provided with an extension welding machine (206); One side end face of the mounting rod (1) is welded with a rotating seat (207), the inner side of the rotating seat (207) is rotatably installed with a connecting rod (208), the outer side of the connecting rod (208) is welded with a positioning iron block (209), one side end face of the positioning iron block (209) is welded with a supporting rod (210), and the outer side of the mounting rod (1) is embedded with an electromagnet (211), which is used for adsorbing and fixing the positioning iron block (209); The bottom of the mounting rod (1) is provided with a moving plate (212), the inner side of the moving plate (212) is provided with a moving groove (213), the inner side of the moving groove (213) is rotatably installed with a roller (214), the top end of the moving plate (212) is welded with a sliding rail (215), the outer side of the sliding rail (215) is slidably installed with a sliding groove plate (216), the inner side of the sliding groove plate (216) is installed with a supporting roller (217) at the top position, one side end face of the sliding groove plate (216) is installed with a servo motor seat (221), the inner side of the servo motor seat (221) is installed with a servo motor (218), the top end of the sliding rail (215) is provided with a positioning threaded hole (219), and the inner side of the positioning threaded hole (219) is threadedly connected with a positioning screw (220); The bottom of the mounting rod (1) is provided with a base plate (301), the top end of the base plate (301) is welded with a bearing plate (302), one side end face of the bearing plate (302) is welded with a partition plate (303), the top end of the bearing plate (302) is welded with a limiting groove plate (304), the bottom end of the limiting groove plate (304) is provided with a rotating groove (305), the inner side of the rotating groove (305) is rotatably installed with a drag-reducing roller (306), and one side end face of the bearing plate (302) is welded with a limiting seat (307); One side end face of the bearing plate (302) is installed with a limiting seat (307), the inner side of the limiting seat (307) is installed with a moving three-phase motor (308), the transmission end of the moving three-phase motor (308) is connected with a drive gear (309), the outer side of the mounting rod (1) is provided with a driven gear slot (310), the inner side of the limiting groove plate (304) is provided with a limiting sliding groove (311), one side end face of the bearing plate (302) is welded with a reinforcing rib (312), and the partition plate (303) and the limiting groove plate (304) form a material cavity (313); The drive gear (309) is engaged with the driven gear slot (310), and the mounting rod (1) slides in the inner side of the limiting groove plate (304).

2. A multi-head automated internal girth welding system as claimed in claim 1, wherein: The inner side of the mounting rod (1) is provided with a clamping groove (202), the top end of the mounting plate (203) is welded with a gasket (204), and the inner side of the gasket (204) is threadedly connected with a fixing screw rod (205).

3. A multi-head automated internal girth welding system as defined in claim 1, wherein: The top end of the mounting rod (1) is provided with two groups of mounting holes (201), and the mounting holes (201) are symmetrically arranged at the top of the mounting rod (1).

4. A multi-head automated internal girth welding system as defined in claim 1, wherein: The inner side of the rotating seat (207) is provided with a movable groove with the connecting rod (208), and the connecting rod (208) is rotatably connected with the rotating seat (207) through the movable groove.

5. A multi-head automated internal girth welding system as defined in claim 1, wherein: The sliding groove plate (216) is provided with two, and the two sliding groove plates (216) are symmetrically and slidingly installed at the outer side of the sliding rail (215). The bottom end of the sliding groove plate (216) is provided with a sliding clamping groove at the corresponding position of the sliding rail (215).

6. A multi-head automated internal girth welding system as defined in claim 1, wherein: The transmission end of the servo motor (218) penetrates through the sliding groove plate (216) and is welded with the supporting roller (217). The input end of the servo motor (218) is electrically connected with the output end of the external power supply.

7. A multi-head automated internal girth welding system as defined in claim 1, wherein: The positioning threaded hole (219) is provided with a plurality of, and the plurality of positioning threaded holes (219) are equally arranged at the top of the sliding rail (215). The input end of the electromagnet (211) is electrically connected with the output end of the external power supply.

8. A multi-head automated internal girth welding system as defined in claim 1, wherein: The load-bearing plate (302) is provided with two, and the two load-bearing plates (302) are symmetrically welded at the top of the base plate (301). The drag-reducing roller (306) is provided with a plurality of, and the plurality of drag-reducing rollers (306) are equally installed at the inner side of the limiting groove plate (304).

9. A multi-head automated internal girth welding system as defined in claim 1, wherein: The input end of the moving three-phase motor (308) is electrically connected with the output end of the external power supply.

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