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Stand for welding machine head of equipment for automatically welding large elbow

A technology of automatic welding and welding head, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of undiscovered and automatic welding difficulties, achieve low manufacturing cost, improve welding quality, and simple structure Effect

Inactive Publication Date: 2007-10-03
李文秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two are different welds. The longitudinal inner weld of the large elbow cannot rotate around the axis of the workpiece itself to form a circular motion track like the circular seam welding, which brings great difficulties to automatic welding, and the inner weld How to fix the welding head for automatic welding, no corresponding device has been found so far

Method used

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  • Stand for welding machine head of equipment for automatically welding large elbow
  • Stand for welding machine head of equipment for automatically welding large elbow
  • Stand for welding machine head of equipment for automatically welding large elbow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] As shown in Fig. 3 and Fig. 10, the head support 30 comprises a first section 31, an intermediate section 32, a secondary intermediate section 36, an adjusting plate 33, a distal section 34 and a base 35, the first section 31, an adjusting plate 33, an intermediate section 32, a secondary The middle section 36 and the end section 34 are connected into an arc shape, and the center of the arc coincides with the center of the motion track of the weld seam of the workpiece. The center of the seam movement trajectory coincides, that is, the radius of the head support is 1.5D, and D is the maximum diameter of the cross-section of the large elbow of the workpiece, and the straight line length of AD shown in Figure 1.

[0030] First section 31 is used for installing machine head, and structure as shown in Figure 4, comprises upper cover plate 311, lower cover plate 312, connecting plate 313, connecting plate 314, mounting hole 315 and installation shaft 316, upper and lower cove...

Embodiment 2

[0039]As shown in Figure 11, it is the same as Embodiment 1, the difference is that the base 5 fixes the entire head support on the synchronization device, the synchronization device rotates synchronously with the main shaft of the workpiece power device, and the synchronization device drives the head support to rotate to drive The welding head and the workpiece rotate synchronously, which can realize the automatic welding of the inner welding seam.

[0040] When the welding operation of the inner concave weld seam is carried out to the large elbow workpiece, the welding head of the inner longitudinal concave seam BB' arc (as shown in Figure 1) is automatically welded by the large elbow inner weld seam provided by the present invention The welder head bracket is fixed to the outer end of the inner concave weld of the workpiece, aligned with the arc of the inner weld BB', and the movement trajectory of the welding spot on the longitudinal inner concave weld BB' arc forms a traje...

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Abstract

A weld head supporting frame for the automatic welder of great elbow is composed of a beginning segment, an intermediate segment, a regulating plate, a final segment and a base. It features that said all segments are sequentially linked to become an arc shape whose circular center is coincident with that of great elbow, so ensuring that the welding direction is always perpendicular to welded seam, resulting in high weld quality.

Description

technical field [0001] The invention relates to a device for automatic welding technology, in particular to a welding machine head support for automatic welding of the inner welding seam of a large elbow. Background technique [0002] At present, the welding of large elbow welds in my country adopts manual welding. The so-called large elbow is a large-diameter high-pressure steel pipe connector used in high-pressure pipelines such as oil transportation, gas transportation, and coal slurry transportation. The pipe diameter is above 630mm. These pipes usually withstand high pressure above 100MPa. As shown in Figure 1, the large elbow is formed by molding and welded by two semi-elbows with upper and lower symmetry. There are four welds, which are longitudinal arch welds AA' arc, CC' arc and longitudinal concave weld. Seam BB' arc and DD' arc, where AA' and DD' arcs are longitudinal outer welds, and BB' arc and CC' arcs are longitudinal inner welds. These four longitudinal wel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/02B23K101/06
Inventor 李文秀
Owner 李文秀
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