Automatic inner girth welding system with multiple machine heads

Abstract

The multi-machine-head automatic inner girth welding system comprises a mounting rod, a mounting hole is formed in the top end of the mounting rod, a mounting plate is connected to the position, corresponding to the mounting hole, of the top end of the mounting rod in a clamped mode, a telescopic welding machine is mounted at the bottom end of the mounting plate, and a rotating seat is welded to the end face of one side 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 supporting rod is welded to the end face of one side of the positioning iron block, an electromagnet is embedded into the end face of one side of the mounting rod, and a moving plate is arranged at the bottom of the mounting rod. The welding seam can be quickly and uniformly welded at the same time through the multiple telescopic welding machines, and the machines are not fatigued, so that the welding seam can be continuously and accurately welded, the welding seam welding failure caused by fatigue of workers is reduced, and the overall quality of the annular pipe is guaranteed while the welding seam quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of annular pipe welding, in particular to an automated inner annular seam welding system with multiple machine heads. Background Art

[0002] At present, the welding of the internal reinforcement ribs of the tank body in round tank trucks is still mostly done by manual welding, especially in the field of pressure vessel special vehicles, where reinforcement rib welding is more common. For example, the 52.6m 3 The LNG model has as many as 55 welding lines, which is a huge workload for the workshop welding work. From a traditional perspective, only by increasing the input of personnel can the production efficiency be improved, and the welding firmness is precisely an important indicator of the quality of annular pipe products;

[0003] However, most of the existing welding is done manually in batches. During the welding process, workers need to half-squat to work, which is not only a large workload and very tiring, but also prone to mistakes after working for a long time, resulting in welding deviations, thereby reducing the quality of the annular pipe. In order to avoid the above technical problems, it is indeed necessary to provide a multi-head automated inner annular seam welding system to overcome the above defects in the prior art. Summary of the invention

[0004] The present invention provides an automated inner annular seam welding system with multiple machine heads, which can effectively solve the problem raised in the above background technology that most of the existing welding is done manually in batches, and workers need to half-squat to work during the welding process, which is not only labor-intensive and very tiring, but also prone to mistakes after working for a long time, resulting in welding deviations, thereby reducing the quality of the annular pipe.

[0005] To achieve the above object, the present invention provides the following technical solution: an automated internal girth welding system with multiple machine heads, comprising a mounting rod, a welding moving assembly being mounted on the top of the mounting rod;

[0006] The welding moving assembly includes a mounting hole, a clamping groove, a mounting plate, a gasket, a fixing screw, a telescopic welding machine, a rotating seat, a connecting rod, a positioning iron block, a supporting rod, an electromagnet, a moving plate, a moving groove, a roller, a slide rail, a sliding groove plate, a supporting roller, a servo motor, a positioning threaded hole, a positioning screw and a servo motor seat;

[0007] A mounting hole is formed at the top of the mounting rod, a mounting plate is clamped at a position corresponding to the mounting hole at the top of the mounting rod, and a telescopic welder is installed at the bottom of the mounting plate;

[0008] A rotating seat is welded on 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 on the outer side of the connecting rod, a supporting rod is welded on one end face of the positioning iron block, and an electromagnet is embedded in one end face of the mounting rod;

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

[0010] Preferably, a clamping groove is provided on the inner side of the mounting rod, a gasket is welded on the top end of the mounting plate, and a fixing screw is threadedly connected to the inner side of the gasket.

[0011] Preferably, two groups of mounting holes are provided at the top end of the mounting rod, and the mounting holes are symmetrically arranged at the top position of the mounting rod.

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

[0013] Preferably, two sliding slot plates are provided, and the two sliding slot plates are symmetrically slidably installed at the outer sides of the slide rail, and sliding slots are provided at the bottom ends of the sliding slot plates and at positions corresponding to the slide rail.

[0014] Preferably, the driving end of the servo motor passes through the sliding slot plate and is welded to the supporting 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 equidistantly provided at the top of the slide rail, and the input ends of the electromagnets are electrically connected to the output ends of the external power supply.

[0016] Preferably, a displacement assembly 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 limit slot plate, a rotating slot, a drag reduction roller, a limit seat, a mobile three-phase motor, a driving gear, a driven gear slot, a limit slide slot, a reinforcing rib and a material chamber;

[0018] A base plate is provided at the bottom of the mounting rod, a load-bearing plate is welded to the top of the base plate, a partition plate is welded to one end face of the load-bearing plate, a limit slot plate is welded to the top of the load-bearing plate, a rotation slot is provided at the bottom of the limit slot plate, a drag-reducing roller is rotatably installed inside the rotation slot, and a limit seat is welded to one end face of the load-bearing plate;

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

[0020] Preferably, two load-bearing plates are provided, and the two load-bearing plates are symmetrically welded at the top position of the base plate. A plurality of drag-reducing rollers are provided, and the plurality of drag-reducing rollers are equidistantly installed on the inner side of the limiting groove plate.

[0021] Preferably, the driving gear is meshed with the driven tooth groove, and the input terminal of the mobile three-phase motor is electrically connected to the output terminal of the external power supply.

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

[0023] 1. A welding moving component is provided, and multiple telescopic welding machines can be used to weld the welds quickly and at a uniform speed at the same time, and the machine will not get tired, so the welds can be welded continuously and accurately, reducing the welding 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 can be slid on the outside of the slide rail according to the diameter of the annular tube, so that the sliding groove plates on both sides are slid to the corresponding positions, and then the positioning screw is passed through the sliding groove plate and tightened to the inner side of the corresponding positioning threaded hole, so that the sliding groove plate can be fixed. At this time, annular tubes of different diameters can be processed, further improving the processing efficiency.

[0024] 2. A displacement component is provided to adjust the extension length of the mounting rod according to the length of the annular tube to prevent the rod from being too short to process multiple welds at the same time, and to prevent the mounting rod from shaking due to being too long, thereby ensuring the welding stability of the telescopic welding machine and being adaptable to the welding of different annular tubes. When the mounting rod is extended to an appropriate length, the welding stability can be increased, the welding quality can be improved, and the quality of the annular tube after welding can be further ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0026] In the attached picture:

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

[0028] Figure 2 It is a structural schematic diagram of the welding moving assembly of the present invention;

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

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

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

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

[0033] Numbers in the figure: 1. Mounting rod;

[0034] 2. Welding moving assembly; 201. Mounting hole; 202. Snap-in groove; 203. Mounting plate; 204. Gasket; 205. Fixing screw; 206. Telescopic welding machine; 207. Rotating seat; 208. Connecting rod; 209. Positioning iron 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 seat;

[0035] 3. Displacement assembly; 301. Base plate; 302. Load-bearing plate; 303. Partition plate; 304. Limiting slot plate; 305. Rotating slot; 306. Drag reduction roller; 307. Limiting seat; 308. Mobile three-phase motor; 309. Driving gear; 310. Driven gear slot; 311. Limiting slide slot; 312. Reinforcing rib; 313. Material chamber. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] Example: Figure 1-6 As shown, the present invention provides a technical solution, a multi-head automated inner girth welding system, comprising a mounting rod 1, a welding moving assembly 2 is mounted on the top of the mounting rod 1;

[0038] The welding moving assembly 2 includes a mounting hole 201, a clamping groove 202, a mounting plate 203, a gasket 204, a fixing screw 205, a telescopic welder 206, a rotating seat 207, a connecting rod 208, a positioning iron block 209, a supporting rod 210, an electromagnet 211, a moving plate 212, a moving groove 213, a roller 214, a slide rail 215, a sliding groove plate 216, a supporting roller 217, a servo motor 218, a positioning threaded hole 219, a positioning screw 220 and a servo motor seat 221;

[0039] The top of the mounting rod 1 is provided with a mounting hole 201. Two groups of mounting holes 201 are provided at the top of the mounting rod 1. The mounting holes 201 are symmetrically provided at the top of the mounting rod 1, which is conducive to fixing the mounting plate 203 to different positions. The mounting plate 203 is clamped at the top of the mounting rod 1 and at the position corresponding to the mounting holes 201. The bottom of the mounting plate 203 is provided with a telescopic welder 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 provided on 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, so as to facilitate the fixing of the positioning iron block 209, a supporting rod 210 is welded to one end face of the positioning iron block 209, and 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 installed on the inner side of the movable groove 213, a slide rail 215 is welded on the top of the movable plate 212, a sliding groove plate 216 is slidably installed 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 installed at the outer side of the slide rail 215, a sliding card groove is provided at the bottom end of the sliding groove plate 216 and at the corresponding position of the slide rail 215, which is conducive to the rapid sliding of the sliding groove plate 216, a supporting roller 217 is installed at the inner top position of the sliding groove plate 216, and a side end surface of the sliding groove plate 216 is installed A servo motor seat 221 is provided with a servo motor 218 installed on the inner side of the servo motor seat 221. The transmission end of the servo motor 218 passes through the sliding slot plate 216 and is welded to the supporting roller 217. The input end of the servo motor 218 is electrically connected to the output end of the external power supply, which is convenient for driving the roller 214. A positioning threaded hole 219 is provided at the top of the slide rail 215. There are several positioning threaded holes 219, and several positioning threaded holes 219 are equidistantly provided 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, which is conducive to fixing the sliding slot plate 216. The inner side of the positioning threaded hole 219 is threadedly connected with a positioning screw 220.

[0042] A clamping groove 202 is provided on the inner side of the mounting rod 1 , a gasket 204 is welded on the top of the mounting plate 203 , and a fixing screw 205 is threadedly connected to the inner side of the gasket 204 , so as to fix the mounting plate 203 conveniently.

[0043] A displacement assembly 3 is installed at the bottom 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 limit slot plate 304, a rotating slot 305, a drag reduction roller 306, a limit seat 307, a mobile three-phase motor 308, a driving gear 309, a driven tooth slot 310, a limit slide slot 311, a reinforcing rib 312 and a material chamber 313;

[0045] A base plate 301 is provided at the bottom of the mounting rod 1, a load-bearing plate 302 is welded at the top of the base plate 301, a partition plate 303 is welded at one end face of the load-bearing plate 302, a limiting slot plate 304 is welded at the top of the load-bearing plate 302, a rotating slot 305 is provided at the bottom end of the limiting slot plate 304, a drag reducing roller 306 is rotatably installed inside the rotating slot 305, two load-bearing plates 302 are provided, and the two load-bearing plates 302 are symmetrically welded at the top position of the base plate 301, a plurality of drag reducing rollers 306 are provided, and the plurality of drag reducing rollers 306 are equidistantly installed on the inner side of the limiting slot plate 304, which is conducive to the sliding of the mounting rod 1, and a limiting seat 307 is welded at one end face of the load-bearing plate 302;

[0046] A limiting seat 307 is installed on one end face of the load-bearing plate 302, and a mobile three-phase motor 308 is installed on the inner side of the limiting seat 307. The transmission end of the mobile three-phase motor 308 is connected to a driving gear 309. A driven tooth groove 310 is provided on the outer side of the mounting rod 1, and the driving gear 309 is meshed with the driven tooth groove 310. The input unit of the mobile three-phase motor 308 is electrically connected to the output end of an external power supply, so as to facilitate and quickly drive the mounting rod 1 to move. A limiting slide groove 311 is provided on the inner side of the limiting slot plate 304, and a reinforcing rib 312 is welded on one end face of the load-bearing plate 302. A material chamber 313 is formed between the partition plate 303 and the limiting slot plate 304.

[0047] The working principle and use process of the present invention are as follows: first, the operator places the pipes to be internally welded on the supporting rollers 217 on the top of the multiple moving plates 212, and then the operator can take out the telescopic welder 206 from the inside of the material chamber 313 according to the number of welds to be welded, and then place the mounting plate 203 on the inside of the corresponding mounting hole 201 according to the position of the weld, and then use the gasket 204 and the fixing screw 205 to fix the mounting plate 203 and the telescopic welder 206 to the inside of the clamping groove 202, so that the multiple telescopic welders can be welded. The shrink welder 206 is placed at the corresponding position, and 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, and then the positioning iron block 209 is rotated by the connecting rod 208 on the inner side of the rotating seat 207, and then the support rod 210 can be supported on the ground, and the electromagnet 211 is turned on so that the positioning iron block 209 can be adsorbed and fixed by the electromagnet 211, so that the weld can be moved to the bottom position of the telescopic welder 206, and the telescopic welder 206 can be moved to the weld position;

[0048] Next, the servo motor 218 inside the servo motor seat 221 is started. At this time, the support roller 217 can be driven to rotate by the servo motor 218, so that the annular tube can be driven to rotate on the outside of the support roller 217. At this time, the telescopic welder 206 is controlled to weld the annular tube while rotating the annular tube, so that all welds of the annular tube can be quickly and synchronously welded. The welds can be welded quickly and uniformly at the same time by multiple telescopic welders 206, and the machines will not be fatigued, so that the welds can be welded continuously and accurately, reducing the welding failure caused by worker fatigue, improving the weld quality and ensuring the overall quality of the annular tube. Then, during welding, the sliding slot 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 slot plates 216 on both sides are slid to the corresponding positions, and then the positioning screw 220 is passed through the sliding slot plate 216 and tightened to the inner side of the corresponding positioning threaded hole 219, so that the sliding slot 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 on the inner side of the limit slot plate 304 according to the length of the annular tube. At this time, the three-phase motor 308 is moved on the inner side of the limit seat 307 to drive the driving gear 309 to rotate. The driving gear 309 and the driven tooth groove 310 can drive the mounting rod 1 to slide on the inner side of the limit slot plate 304. At this time, the mounting rod 1 can be driven to slide on the inner side of the drag reduction roller 306, so that the mounting rod 1 can be slid to the inner side of the annular tube. The extended length of the mounting rod 1 can be adjusted according to the length of the annular tube to prevent multiple welds from being processed simultaneously due to being too short, and to prevent the mounting rod 1 from shaking due to being too long, thereby ensuring the welding stability of the telescopic welding machine 206 and adapting to the welding use of different annular tubes. After the mounting rod 1 is extended to an appropriate length, the welding stability can be increased, the welding quality can be improved, and the quality of the annular tube after welding is completed can be further ensured.

[0050] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automated internal girth welding system with multiple heads, comprising a mounting rod (1), characterized in that: A welding moving assembly (2) is installed on the top of the installation rod (1); The welding moving assembly (2) comprises a mounting hole (201), a clamping groove (202), a mounting plate (203), a gasket (204), a fixing screw (205), a telescopic welder (206), a rotating seat (207), a connecting rod (208), a positioning iron block (209), a supporting rod (210), an electromagnet (211), a moving plate (212), a moving groove (213), a roller (214), a slide rail (215), a sliding groove plate (216), a supporting roller (217), a servo motor (218), a positioning threaded hole (219), a positioning screw (220) and a servo motor seat (221); The top end of the mounting rod (1) is provided with a mounting hole (201), a mounting plate (203) is clamped at a position corresponding to the top end of the mounting rod (1) and the mounting hole (201), and a telescopic welder (206) is installed at the bottom end of the mounting plate (203); 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 supporting rod (210) is welded to one end face of the positioning iron block (209), and an electromagnet (211) is embedded in one end face of the mounting rod (1); 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 installed on the inner side of the movable groove (213), a slide rail (215) is welded on the top of the movable plate (212), a sliding groove plate (216) is slidably installed on the outer side of the slide rail (215), a supporting roller (217) is installed at the inner top position of the sliding groove plate (216), a servo motor seat (221) is installed on one end surface of the sliding groove plate (216), a servo motor (218) is installed on the inner side of the servo motor seat (221), a positioning threaded hole (219) is provided on the top of the slide rail (215), and a positioning screw (220) is threadedly connected to the inner side of the positioning threaded hole (219).

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

3. The multi-head automated inner girth welding system according to claim 1, characterized in that: Two groups of mounting holes (201) are provided at the top end of the mounting rod (1), and the mounting holes (201) are symmetrically arranged at the top position of the mounting rod (1).

4. The multi-head automated inner girth welding system according to claim 1, characterized in that: The inner side of the rotating seat (207) and the connecting rod (208) are provided with movable grooves, and the connecting rod (208) is rotatably connected to the rotating seat (207) through the movable grooves.

5. The multi-head automated inner girth welding system according to claim 1, characterized in that: Two sliding slot plates (216) are provided, and the two sliding slot plates (216) are symmetrically slidably installed at the outer positions of the slide rail (215). The bottom ends of the sliding slot plates (216) are provided with sliding slots at positions corresponding to the slide rail (215).

6. The multi-head automated inner girth welding system according to claim 1, characterized in that: The transmission end of the servo motor (218) passes through the sliding slot plate (216) and is welded to the supporting roller (217), and the input end of the servo motor (218) is electrically connected to the output end of the external power supply.

7. The multi-head automated inner girth welding system according to claim 1, characterized in that: A plurality of positioning threaded holes (219) are provided, and the plurality of positioning threaded holes (219) are equidistantly provided at the top of the slide rail (215). The input ends of the electromagnets (211) are electrically connected to the output ends of the external power supply.

8. The multi-head automated inner girth welding system according to claim 1, characterized in that: A displacement assembly (3) is installed at the bottom end of the installation rod (1); The displacement assembly (3) comprises a base plate (301), a load-bearing plate (302), a partition plate (303), a limit slot plate (304), a rotating slot (305), a drag reduction roller (306), a limit seat (307), a mobile three-phase motor (308), a driving gear (309), a driven tooth slot (310), a limit slide slot (311), a reinforcing rib (312) and a material chamber (313); 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), one end face of the load-bearing plate (302) is welded with a partition plate (303), the top of the load-bearing plate (302) is welded with a limit slot plate (304), the bottom of the limit slot plate (304) is provided with a rotation slot (305), a drag reduction roller (306) is rotatably mounted inside the rotation slot (305), and one end face of the load-bearing plate (302) is welded with a limit seat (307); A limiting seat (307) is installed on one end face of the load-bearing plate (302), a movable three-phase motor (308) is installed on the inner side of the limiting seat (307), a driving gear (309) is connected to the transmission end of the movable three-phase motor (308), a driven tooth groove (310) is provided on the outer side of the mounting rod (1), a limiting sliding groove (311) is provided on the inner side of the limiting slot plate (304), a reinforcing rib (312) is welded on one end face of the load-bearing plate (302), and a material chamber (313) is formed between the partition plate (303) and the limiting slot plate (304).

9. The multi-head automated inner girth welding system according to claim 8, characterized in that: The load-bearing plates (302) are provided in two numbers, and the two load-bearing plates (302) are symmetrically welded at the top position of the base plate (301). The drag-reducing rollers (306) are provided in a plurality, and the plurality of drag-reducing rollers (306) are equidistantly installed on the inner side of the limiting groove plate (304).

10. The multi-head automated inner girth welding system according to claim 8, characterized in that: The driving gear (309) is meshed with the driven tooth groove (310), and the input terminal of the mobile three-phase motor (308) is electrically connected to the output terminal of the external power supply.

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