Tool special for overlaying and assembly welding of small-caliber elbows and installing method
A small-diameter, elbow technology, applied in the field of special tooling and installation for small-diameter elbow surfacing and assembly welding, can solve the problems of special product structure, inability to guarantee surfacing welding quality, and variable welding positions, and achieve a simple design structure. , Solve the problem of welding weight and the effect of short manufacturing cycle
Active Publication Date: 2015-03-11
HARBIN BOILER
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Problems solved by technology
The purpose of the present invention is to provide a special tooling and installation method for surfacing and assembly welding of small-diameter elbows, which solves the problem that the welding position during manual surfacing welding is variable and the quality of surfacing welding cannot be guaranteed due to the special structure of the product.
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Abstract
Provided are a tool special for overlaying and assembly welding of small-caliber elbows and an installing method. At present, the elbows are manufactured by means of a traditional manufacturing process 'trisection-respective overlaying-assembly welding and overlaying', and the traditional manufacturing process is still widely adopted, has the advantages of being simple in required devices and low in manufacturing cost and has the shortcomings of being complicated and tedious in process, long in manufacturing period and large in manual overlapping work amount. The tool special for overlaying and assembly welding of the small-caliber elbows comprises a small rib plate(1), wherein the small rib plate is connected with a bent plate (6), the bent plate is connected with a large rib plate (2), a middle rib plate (3) and a base plate (10) respectively, the base plate is connected with a support fixing plate (11), the support fixing plate is connected with a bolt (7), a nut (9), a washer (8) and a large support (5), the large support is connected with a small support, and an upper seal head elbow module and a lower seal head elbow module are installed on the small support. The tool is mainly applied to overlaying and assembly welding of the small-caliber elbows and the installing method.
Description
Technical field: The invention relates to a small-diameter elbow special tooling for surfacing and assembly welding and an installation method. Background technique: At present, there are three forming methods and manufacturing problems for small-diameter elbow parts. The traditional manufacturing process of "three equal parts-respective welding-reassembly and welding" is adopted. This process method is still widely used today. The advantage is that the required equipment is simple and the manufacturing cost is low. The disadvantage is that the process is complex and cumbersome, the manufacturing cycle is long, and the workload of manual surfacing is large; The small-diameter elbow is a research and development bending process, that is, the straight pipe is first surfacing and then bent into a 90° elbow, that is, "welding first and then bending". The advantage is that the equipment required for the manufacturing process is simple, and the disadvantage is that the forming pr...
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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/047
CPCB23K9/044B23K37/047
Inventor 马鸣张盛岩张亚奇李春光欧海燕
Owner HARBIN BOILER
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