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Orientation device with a big elbow and the processing method of the clamping board

A technology of positioning device and large elbow, applied in auxiliary devices, metal processing equipment, manufacturing tools, etc., can solve the problems of undiscovered positioning clamping device and automatic welding difficulties, and achieve a simple and easy production method, simple structure, The effect of low production cost

Inactive Publication Date: 2007-09-26
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 concave weld of the large elbow cannot rotate around the axis of the workpiece itself to form a circular motion trajectory like circular seam welding, which brings great difficulties to automatic welding.
A positioning clamp device and a method for processing the device for automatic welding of the longitudinal concave seam of the large elbow have not been found yet

Method used

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  • Orientation device with a big elbow and the processing method of the clamping board
  • Orientation device with a big elbow and the processing method of the clamping board
  • Orientation device with a big elbow and the processing method of the clamping board

Examples

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Embodiment Construction

[0030] The large elbow positioning device, as shown in Figure 3, includes several clamping plates 20 fixed on the flat plate 14, the large elbow positioning device has the functions of automatic centering and welding seam alignment, the clamping plate structure, as shown in Figure 7 shown, including the bottom, left wing, and right wing, the whole is V-shaped, the left wing and the right wing are symmetrical, and the circle specified between any symmetrical points of the two wings of the clamp coincides with the cross section of the large elbow clamped at these two points, as shown in Figure 1 Shown, the cross section of the large elbow is the circle Q. It includes a small arc, a section of two circles, a large arc and a retaining portion from near the bottom to the top, and there is a groove at the lower part of the small arc. The clamping plate of the large elbow positioning device is processed by the following methods:

[0031] (1) As shown in Figure 4, take an odd number ...

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Abstract

The invention relates to a location device for large elbow and the processing method for the clipboard. The location device comprises bottom plate and several clipboards. Clipboards are fixed with the bottom plate. The clipboard comprises bottom part, left wing and right wing. The whole is in V-shape and the left wing is symmetric to the right wing. Circles set by any symmetric points on inner sides of two wings are coincidence with the cross section of large elbow which is set at two points. The machining method is that the clapboard is produced by adopting marking and cutting method on steel plate. The clipboard produced by the method has performances of automatic centering and automatic aligning welding line and makes the motion track of concave welding line of workpeice is changed into circle track. It solves difficult location problem in automatic welding for large elbow. The method provides a simple and easy production method for producing clipboards of location device for large elbow. The produced clipboard is provided with simple structure and low producing cost.

Description

technical field [0001] The invention relates to an automatic welding device, in particular to a positioning device and a clamping plate processing method for the large-diameter elbow automatic welding device. 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 usua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/04B23K101/06
Inventor 李文秀
Owner 李文秀
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