Processing method of double-headed non-axial pipe joint

Abstract

The invention discloses a double-end non-coaxial pipe joint machining method. The method comprises steps as follows: firstly, a hollow pipe blank is manufactured; the pipe blank is mounted on a working table of a CNC machining center, the working table is deflected according to a cross angle of thread axes of two ends of the workpiece, an outer end surface of an internal thread section and an auxiliary hole are formed by milling with the working table as the standard, and four technological planes are milled uniformly on the outer wall of the to-be-machined internal thread section; the blank is transferred onto a common lathe, the four technological planes on the outer wall are clamped by a four-jaw chuck, the auxiliary hole is corrected, and finish machining of the internal thread and aninner hole is completed; the excircle of an external thread section of the blank is subjected to turn-around clamping, and the excircle of the internal thread section is subjected to finish turning after correction; the excircle of the internal thread section is subjected to turn-around clamping, and an external thread and the inner hole are subjected to finish turning. With the adoption of a preferred technological route, the technology is reasonable and simple. With the adoption of a milling and turning combination method, production efficiency is improved, and use frequency of the CNC machining center is reduced, so that production cost is saved.

Description

technical field [0001] The invention belongs to the technical field of mechanical cutting technology. Specifically, the invention relates to a method for processing a pipe joint, in particular to a method for processing a pipe joint with two heads and different axes. Background technique [0002] In mechanical engineering, most of the pipes used to carry high temperature and high pressure are metal pipes, and the connections between these metal pipes are all connected by pipe joints. Therefore, the matching pipe joints are steel products. Conventional double-head pipe joints are conjoined structures. This type of pipe joints is generally formed by lathe cutting. The most typical process is to process one end thread first, then turn around, and use the formed end thread as a positioning reference, and then process the other end thread. . However, this process is only suitable for the processing of double-head coaxial pipe joints, not suitable for the processing of double-he...

AI Technical Summary

Problems solved by technology

Since the threads located at both ends of the pipe joint are not coaxial, effective production cannot be achieved with conventional turning processes, and the industry can only use CNC machining centers for processing

Although the existing CNC machining center can achieve effective processing, the production cost is relatively high, and it is not suitable for mass production

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