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Equipment for automatically welding longitudinal arched seam of large elbow

A welding equipment and automatic seam technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of automatic welding difficulties and undiscovered problems, and achieve improved welding quality, good welding quality, and work safety. 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 arched 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.
There is no equipment for automatic welding of longitudinal arched seams of large elbows

Method used

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  • Equipment for automatically welding longitudinal arched seam of large elbow
  • Equipment for automatically welding longitudinal arched seam of large elbow
  • Equipment for automatically welding longitudinal arched seam of large elbow

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0053] As shown in Figure 14, the automatic welding equipment for longitudinal arched seams of large elbows includes a power unit 1, a large elbow positioning device 2, a welding head positioning device 3 and a braking device 4, wherein

[0054] The power unit 1 includes a motor, a reducer, a transmission part, a main shaft 13, and a drum 14 that is concentric with the main shaft and is fixedly sleeved outside the main shaft. The steel wire rope 41 fed by the brake device is wound around the drum, and the drum is fixedly connected with the large elbow positioning device. After the motor is powered on, it drives the reducer to rotate, the reducer drives the main shaft to rotate through the transmission parts, and the main shaft drives the roller and the big elbow positioning device to rotate around the main shaft. Transmission components can be chains, belts or gear drives.

[0055] 20 rounds of R-shaped threads are machined on the central axis of the outer circle of the drum w...

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Abstract

An automatic welder for the longitudinal arch seam of a great elbow is composed of a power unit, a great elbow locating unit with several fastening plats fixed on drum and having centering function, a welding head locating unit with special supporting frame, and a brake unit.

Description

technical field [0001] The invention relates to an automatic welding device, in particular to an automatic welding device for longitudinal arched seams of large diameter elbows. 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, DD' arc, these four longitudinal arc welds are four equal-angle arcs of four concentric circles, the center of which is O, and the elbow is usually named after the angle of an...

Claims

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Application Information

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IPC IPC(8): B23K37/00B23K37/04B23K37/02B23K101/06
Inventor 李文秀
Owner 李文秀
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