Automatic welding assembly line for pipe flange laser hybrid welding

Abstract

The utility model provides a pipe flange laser hybrid welding automatic welding assembly line, the assembly line includes: annular conveyor line structure, moving crossbeam structure and unloading conveyor, the inside of annular conveyor line is provided with moving crossbeam structure, the end of annular conveyor line is equipped with unloading conveyor, the end of moving crossbeam structure extends to unloading conveyor, and the end of moving crossbeam structure extends to unloading conveyor. A welding assembly is arranged on the inner side of the annular conveying line structure and sequentially comprises a laser composite welding gun A, a welding robot A, a CO2 welding gun A, a welding positioner A, a workpiece temporary storage table, a welding positioner B, a CO2 welding gun B, a welding robot B and a laser composite welding gun B from left to right. The novel welding technology of solid welding wire welding bottoming, laser and MAG composite welding filling and CO2 welding capping is adopted. The short pipes, the small-group vertical pipes and the gold objects are assembled and then conveyed to the annular conveying line from the feeding position, automatic conveying and automatic feeding are achieved through the annular conveying line, and other actions are automatically completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding assembly line technical field especially relates to pipe flange laser composite welding automatic welding assembly line. BACKGROUND

[0002] In the ship welding, the diameter of pipe changes, the wall thickness changes more, and the type of pipe flange is also more, pipe pipe butt joint, sleeve butt joint, and the splicing mode is also many, and many problems will be encountered in the process of welding: (1) in the welding, the flange needs to be welded inside and outside, and the switching is troublesome, and the workload is large; (2) because of the different wall thickness, the welding process of multiple layers and multiple passes is different, and the welding process needs to be adjusted in real time according to the different workpieces; (3) the butt joint ring seam welding requirement is higher, and skilled welder is needed; (4) the traditional process needs argon arc welding to bottom, and the working efficiency is low. SUMMARY

[0003] In view of above-mentioned problem, the utility model provides pipe flange laser composite welding automatic welding assembly line to solve the welding workload big, welding efficiency low problem mentioned in background art.

[0004] The utility model provides pipe flange laser composite welding automatic welding assembly line, this assembly line includes: annular conveying line structure, mobile crossbeam structure and unloading conveyor, the inside of annular conveying line structure stands mobile crossbeam structure, the end of annular conveying line structure is installed with unloading conveyor, and the end of mobile crossbeam structure extends to unloading conveyor.

[0005] The annular conveying line structure includes annular conveying line, loading position.

[0006] The inside of annular conveying line structure is provided with welding assembly, and the welding assembly includes laser composite welding gun A, welding robot A, CO2 welding gun A, welding positioner A, workpiece buffer station, welding positioner B, CO2 welding gun B, welding robot B, laser composite welding gun B from left to right in proper order.

[0007] The both sides of welding assembly are also provided with wire feeder A and wire feeder B respectively for respectively feeding laser composite welding gun A and laser composite welding gun B.

[0008] The inside of laser composite welding gun A is provided with gun cleaning and wire cutting machine A, and the inside of laser composite welding gun B is provided with gun cleaning and wire cutting machine B.

[0009] The mobile crossbeam structure is composed of the column of both sides and mobile crossbeam, and the mobile crossbeam is supported through the column, and the inside of mobile crossbeam is equipped with wire slot drag chain, and the wire slot drag chain is movably connected with carrying robot through slide plate structure below.

[0010] The carrying robot is installed with automatic grabbing dog below.

[0011] The annular conveying line structure and the welding assembly are provided with protective fences, and the discharge conveyors are provided with discharge protective fences on both sides.

[0012] Through the above scheme, the technical effects achieved are: after the butt joint of the pipe and the pipe, the pipe and the elbow, and the pipe and the reducing size head, a new welding process is adopted, which adopts a solid wire to weld a base, laser+MAG composite welding to fill, and CO2 welding to cover the surface;

[0013] After the short pipe, the small group of pipes and the fittings are assembled and aligned, they are conveyed from the loading position to the annular conveying line, the annular conveying line realizes automatic transmission and automatic loading, and the remaining actions are automatically completed;

[0014] Automatic welding, the welding positioner of the welding position can automatically clamp the workpiece and automatically change the position; the welding robot cooperates to complete the automatic base welding of the butt joint and the automatic welding of the flange / sleeve fillet weld; during the welding process, there is a weld tracking system, and the welding robot can automatically adjust according to the information feedback;

[0015] The protective fence has the automatic protection function of pipe welding spatter, and the inner surface of the welded piece is free of welding spatter. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Fig. 1 It is a front view of the pipe flange laser composite welding automatic welding assembly line of the present application.

[0018] Fig. 2 It is a top view of the pipe flange laser composite welding automatic welding assembly line of the present application.

[0019] Fig. 3 It is a side view of the pipe flange laser composite welding automatic welding assembly line of the present application.

[0020] Explanation of reference numerals in the attached drawings: 1. Circular conveyor structure; 11. Circular conveyor line; 12. Loading position; 2. Moving beam structure; 21. Column; 22. Moving beam; 23. Cable trough; 24. Handling robot; 241. Automatic gripper; 25. Column leveling mechanism; 3. Unloading conveyor; 4. Welding assembly; 41. Laser composite welding torch A; 411. Torch cleaning and wire cutting machine A; 42. Welding robot A; 43. CO2 welding torch A; 44. Welding positioner A; 45. Workpiece buffer platform; 46. Welding positioner B; 47. CO2 welding torch B; 48. Welding robot B; 49. Laser composite welding torch B; 491. Torch cleaning and wire cutting machine B; 51. Wire feeder A; 52. Wire feeder B; 5. Protective fence; 6. Unloading protective fence; 13. Operation box. Implementation

[0021] To facilitate understanding of the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] like Figs. 1-3 As shown, this utility model provides an automatic welding production line for laser composite welding of pipe flanges. This production line includes: a ring conveyor structure 1, a moving crossbeam structure 2, and an unloading conveyor 3. The moving crossbeam structure 2 is erected on the inner side of the ring conveyor 1, and the unloading conveyor 3 is installed at the end of the ring conveyor 1. The end of the moving crossbeam structure 2 extends to the unloading conveyor 3. The ring conveyor structure 1 includes a ring conveyor 11 and a loading position 12.

[0023] The circular conveyor line 11 in the circular conveyor line structure 1 uses a standard linear guide as the conveyor guide and is equipped with four moving linear sliders, which can withstand the impact when manually feeding materials.

[0024] The inner side of the circular conveyor structure 1 is provided with a welding assembly 4, which includes, from left to right: laser composite welding gun A41, welding robot A42, CO2 welding gun A43, welding positioner A44, workpiece buffer table 45, welding positioner B46, CO2 welding gun B47, welding robot B48, and laser composite welding gun B49.

[0025] The laser composite welding guns A41 and B49 in welding assembly 4 consist of a laser welding head and a MAG welding gun, and have the advantages of both laser welding and arc welding.

[0026] The welding assembly 4 is also equipped with wire feeders A51 and 52 on both sides, which feed the laser composite welding gun A41 and laser composite welding gun B49 respectively. The wire feeders A51 and 52 feed the welding wire to the laser composite welding gun A41 and laser composite welding gun B49 to facilitate welding.

[0027] The inner side of the laser composite welding gun A41 is provided with a gun cleaning and wire cutting machine A411, and the inner side of the laser composite welding gun B49 is provided with a gun cleaning and wire cutting machine B491. The gun cleaning and wire cutting machine A411 and the gun cleaning and wire cutting machine B491 are used to remove the burrs on the inner surface of the nozzle, so as to ensure the normal and stable gas.

[0028] The moving beam structure 2 is composed of two side columns 21 and a moving beam 22 supported by the columns 21, and the inner side of the moving beam 22 is provided with a wire slot drag chain 23. The wire slot drag chain 23 is movably connected with a carrying robot 24 through a slide plate structure 25, and the carrying robot 24 is provided with an automatic grabbing claw 241.

[0029] The column 21 is made of high-strength structural steel by welding, and the bottom of the column 21 is provided with a column horizontal adjusting mechanism 25, so that the column 21 has a fine adjustment function and is convenient for installation and debugging. The slide plate structure 25 is the main carrier for the movement of the carrying robot 2, and the function of the automatic grabbing claw 241 of the carrying robot 24 is mainly used for carrying and unloading the product.

[0030] The annular conveying line structure 1 and the welding assembly 4 are provided with a protective fence 5, and the both sides of the unloading conveyor 3 are provided with unloading protection fences 6. The protective fence 5 can effectively protect the welding and has the automatic protection function of the spatter in pipe welding. The unloading protection fence 6 can avoid the rolling of the workpiece and protect the unloading conveyors 3 on both sides from being damaged.

[0031] The workpiece parameter input system mode: data transmission mode or manual input mode, the data transmission mode includes: U disk copy, network transmission or existing MES system one-key import into the operation box 13. The robot welding trajectory can be automatically generated according to the input / imported workpiece type, pipe diameter, length and welding position parameters; manual loading to the loading position 12, automatic loading and unloading by the carrying robot 24. When the carrying robot 24 takes the material, it can detect the diameter of the workpiece and compare it with the parameters in the system to judge whether the workpiece is matched;

[0032] The welding positioners A44 and B46 in the welding assembly 4 can automatically clamp the workpiece, automatically change the position, and cooperate with the welding robots A42 and B48 to complete the automatic welding of the butt joint, the automatic covering or the flange / sleeve fillet weld. A welding seam tracking system is needed in the welding process, and the welding robot adjusts according to the information feedback.

Claims

1. A pipe flange laser hybrid welding automatic welding assembly line, characterized in that, The pipeline includes: a ring conveying line structure (1), a moving beam structure (2), and a discharging conveyor (3), the moving beam structure (2) is arranged on the inner side of the ring conveying line structure (1), the discharging conveyor (3) is arranged at the end of the ring conveying line structure (1), and the end of the moving beam structure (2) extends to the discharging conveyor (3).

2. The tube flange laser hybrid welding automatic welding assembly line according to claim 1, characterized in that: The ring conveying line structure (1) includes a ring conveying line (11) and a feeding position (12).

3. The tube flange laser hybrid welding automatic welding assembly line according to claim 1, characterized in that: The inner side of the ring conveying line structure (1) is provided with a welding assembly (4), the welding assembly (4) includes, from left to right, a laser composite welding gun A (41), a welding robot A (42), a CO2 welding gun A (43), a welding positioner A (44), a workpiece buffer table (45), a welding positioner B (46), a CO2 welding gun B (47), a welding robot B (48), and a laser composite welding gun B (49).

4. The tube flange laser hybrid welding automatic welding assembly line according to claim 3, characterized in that: The two sides of the welding assembly (4) are respectively provided with a wire feeder A (51) and a wire feeder B (52) for feeding wires to the laser composite welding gun A (41) and the laser composite welding gun B (49), respectively.

5. The tube flange laser hybrid welding automatic welding assembly line according to claim 3, characterized in that: The inner side of the laser composite welding gun A (41) is provided with a gun cleaning and wire cutting machine A (411), and the inner side of the laser composite welding gun B (49) is provided with a gun cleaning and wire cutting machine B (491).

6. The tube flange laser hybrid welding automatic welding assembly line according to claim 1, characterized in that: The moving beam structure (2) is composed of two side columns (21) and a moving beam (22), the moving beam (22) is supported by the columns (21), the inner side of the moving beam (22) is provided with a wire slot drag chain (23), and the wire slot drag chain (23) is movably connected with a carrying robot (24) through a slide plate structure (25).

7. The tube flange laser hybrid welding automatic welding assembly line according to claim 6, characterized in that: The carrying robot (24) is provided with an automatic grabbing claw (241).

8. The tube flange laser hybrid welding automatic welding assembly line according to claim 3, characterized in that: The ring conveying line structure (1) and the welding assembly (4) are provided with a protective fence (5), and the two sides of the discharging conveyor (3) are provided with discharging protective fences (6).

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