Pipeline thread rolling and processing method and roll machine

Abstract

The invention is a pipeline thread rolling method and the roller, nipping the pipeline on the pipe nipping mechanism driven by the electric machine, there is a thread rolling mechanism placed in the working front, there are rolling wheels in the rolling mechanism, the pipeline rotates and enters in between three rolling wheels coaxially and distributed at 120 deg. central angle in the thread rolling mechanism, rolling into a thread shape, the pipeline thread roller is composed of base, electric machine, reducer, guide pile locating mechanism and workpiece clamping mechanism, there is a sliding frame on the two guide piles and the there is a thread rolling mechanism set on the sliding frame, compared with existing techniques, it has the characters of reasonable structure, smooth thread, high precision, etc.

Description

technical field [0001] The invention relates to a method for rolling a pipeline to form pipeline threads and equipment for applying the method, belonging to pipeline machining methods and equipment. Background technique [0002] In the prior art, the thread processing of pipelines mostly adopts the method of cutting and forming, and the equipment using this method includes conventional threading machines and the like. The structure of the threading machine is generally composed of a machine base, a motor, a reducer, a profiling cutting head, a guide post positioning mechanism, a workpiece clamping mechanism, and a feeding mechanism. The threading machine composed of this mechanism cuts the thread of the pipe. Because the material fiber of the cut part is cut off, the original cross section is reduced, resulting in the tensile strength of the threaded joint of the pipe being much lower than that of the connected pipe. Tensile strength, and the sealing performance of the pipe...

AI Technical Summary

Problems solved by technology

The threading machine composed of this mechanism cuts the thread of the pipe. Because the material fiber of the cut part is cut off, the original cross section is reduced, resulting in the tensile strength of the threaded joint of the pipe being much lower than that of the connected pipe. Tensile strength, and the sealing performance of the pipe thread processed by cutting is not good when the pipe is connected. It is often necessary to use other auxiliary materials for sealing, which increases the cost of use and is subject to certain restrictions on use.

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