Machining method of high-precision deep and long hole thin-walled sleeve part

Abstract

The invention provides a machining method of a high-precision deep and long hole thin-walled sleeve part. The machining method comprises the following steps that a rod is clamped and subjected to rough-machining forming, the machining allowance is reserved, and a process chuck is reserved; a roughly-machined workpiece is subjected to thermal treatment aging; and the process chuck of the workpieceis clamped by a lathe, finish machining of the workpiece is completed during primary clamping machining according to a workpiece drawing, and finish machining is divided into the following working steps that a core shaft, a lining and a screw are manufactured; the process chuck is clamped on the lathe, the core shaft is crammed into roughly-machined inner holes of the workpiece, and an outer circle of the part is machined to the required dimension; the screw is screwed into a core shaft threaded hole, and the core shaft is taken out of the workpiece; the lining sleeves the machined outer circle of the workpiece, the outer end face of the workpiece is machined, and the large and small inner holes and the bottom face are bored; tool setting is conducted from the bottom face, the outer end face of the workpiece is machined, and the length dimension L2 of the workpiece is ensured; and the workpiece is cut off, and the total length L1 of the workpiece is ensured. According to the machiningmethod of the high-precision deep and long hole thin-walled sleeve part, the rigidity of the part is improved, machining deformation of the part is reduced, vibration during thin-walled part machiningis reduced, and the machining quality and surface roughness are improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a processing method for high-precision deep and long hole thin-wall sleeve parts. Background technique [0002] At present, for high-precision, long-hole and thin-walled sleeve parts, if the dimensional accuracy of the inner hole and outer circle is required to be high, there are generally two processing methods: one is to perform rough machining first, and remove the inner hole and outer circle. Residue, after heat treatment and aging, finish machining. During finishing, the inner hole is processed first, and then the outer circle is processed with the inner hole positioning. The other is that the inner hole and the outer circle are completed in one clamping process after the rough machining has passed the aging process. Regardless of the processing method, if the dimensional accuracy is required to be high, it will be difficult to fully achieve it in...

AI Technical Summary

Problems solved by technology

The length deformation of aluminum alloy material is relatively small, but the length deformation of stainless steel material and copper alloy material is relatively large

The processing of such parts is a difficult problem in mechanical processing, which seriously affects the processing efficiency and production progress, and becomes a bottleneck restricting production

Images