Machining method of threaded pipe

Abstract

The invention provides a machining method of a threaded pipe. A machining clamp and a matched screw cap are included, wherein the clamp comprises a lathe clamping end, a tool retracting part, a core shaft and the matched screw cap; the lathe clamping end is a cylinder, the length is 30mm-70mm and the diameter is 40mm-50mm; the tool retracting part is a cylinder, the length is 11mm-14mm, and the diameter is 11mm-13mm smaller than the outer diameter D of the threaded pipe; one end of the core shaft is a cylinder with a smooth surface and the other end of the core shaft is a cylinder with threads on the surface, and the diameter of the core shaft is 0.02mm-0.04mm smaller than the inner diameter d of the threaded pipe; the length of the cylinder with the smooth surface is the product of the quantity of parts needing to be clamped in one step and the thicknesses of the parts, and the length of the cylinder with the threads on the surface is 40mm-60mm; with the adoption of the lathe clamping end and the tool retracting part, the machining method of the threaded pipe has high machining efficiency, no waste of materials and high yield.

Description

technical field [0001] The invention relates to a processing method for a threaded pipe, which belongs to the technical field of machinery. Background technique [0002] During the processing of the threaded pipe of the aero-engine, since the threaded pipe is a thin part, the axial length of the threaded pipe is 10-30mm, and the bar is used for processing, and the outer circle size, inner hole size and outer end surface of the threaded pipe are processed first , and then turn the helical threaded pipe, and finally cut the threaded pipe from the bar, and then turn the other end face. Since the axial dimension of the threaded pipe is 5-15mm larger than the size of the part, not only is the material wasted, but also the turning tools are constantly replaced, resulting in low processing efficiency. When turning the other end face, since the helical threaded tube of the part has been processed, it is easy to pinch the part during clamping, causing the part to be scrapped. Cont...

AI Technical Summary

Problems solved by technology

Since the axial dimension of the threaded pipe is 5-15mm larger than the size of the part, not only is the material wasted, but also the turning tool is constantly replaced, and the processing efficiency is low

When turning the other end face, since the helical threaded pipe of the part has been processed, it is easy to pinch the part during clamping, causing the part to be scrapped