Single-face welding and double-face forming welding fixture of stainless steel end head
A single-sided welding double-sided, welding tooling technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of inability to weld, high cost, affecting welding quality, etc., to achieve good molding consistency, The welding process is simple and the effect of improving production efficiency
Active Publication Date: 2015-06-10
北京中丽制机智能制造有限公司 +1
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Problems solved by technology
The main problems of this welding method are: 1. During the welding process, it is necessary to fill the inside of the pipe body with protective gas, and the cost is relatively high
2. Because one end of the pipe body is blocked and the other end continuously inflates the inside of the pipe body, it is difficult to control the internal air pressure to the most favorable welding environment. The shorter the pipe body, the more difficult it is to control
If the air pressure is high, the gas will diffuse from the inside to the outside from the weld bead, resulting in bad shape of the outside or failure to weld during the welding process
If the air pressure is small, the internal protection of the weld bead is not enough, and the forming of the internal bead will be incomplete, which will affect the welding quality
Method used
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[0015] see figure 1 , figure 2 and image 3 , a stainless steel end welding tool provided by the embodiment of the present invention with single-sided welding and double-sided forming, which forms a stepped cylindrical shape as a whole, including a front cylinder 1, a middle cylinder 2 and a rear cylinder 3, and the axis of the rear of the tool There are four air outlet holes 5 evenly arranged on the outer circumference of the middle part of the tooling, and the air inlet holes 4 and the air outlet holes 5 are connected; It is 1mm smaller than the inner diameter of the pipe end 6, which can ensure that the centerline of the welding tool is consistent with the centerline of the end 6, avoiding the backward flow of the shielding gas, and at the same time avoiding the welding of the end 6 and the pipe body after the welding is completed. 7 Welding deformation occurs, and the welding tool cannot be removed; the inner diameter of the front cylinder 1 of the tool is 2mm smaller t...
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The invention provides a single-face welding and double-face forming welding fixture of a stainless steel end head. The integral outline of the fixture is of a stepped cylinder; an air inlet hole is formed at the axle centre of the rear of the fixture; four air outlet holes are uniformly formed on the outer circumference of the middle part of the fixture; and the air inlet hole is communicated with the air outlet holes. The single-face welding and double-face forming welding fixture of stainless steel end head provided by the invention can simplify the welding process of a pipe body and an end head, guarantees that the internal forming uniformity of the weld bead is good and improves the production efficiency; and the processing cost is low and the welding quality is high.
Description
technical field [0001] The invention relates to the field of pipeline welding, in particular to a single-side welding and double-side forming welding tool for a stainless steel end. Background technique [0002] In the welding process of stainless steel pipes and ends, single-sided welding and double-sided forming are required. The welding method currently used is: plug one end of the pipeline with a plug, fill the pipeline with a protective body (argon gas) from the other end, and then use argon arc welding or other welding methods to weld on the outside of the pipeline , so as to achieve single-sided welding and double-sided forming of the weld. The main problems of this welding method are: 1. During the welding process, the inside of the pipe body needs to be filled with protective gas, and the cost is relatively high. 2. Because one end of the pipe body is blocked and the other end continuously inflates the inside of the pipe body, it is difficult to control the intern...
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IPC IPC(8): B23K37/00
Inventor 黄国亮
Owner 北京中丽制机智能制造有限公司