A Machining Technology of Thin Wall and Deep Hole Cylinder Liner

Abstract

The invention discloses a machining technology of a thin-walled and deep-hole air cylinder sleeve. The machining technology comprises the following steps that firstly, the semi-finish turning workingprocedure is conducted, specifically, the outer circle, the two end faces and an inner hole of the air cylinder sleeve are sequentially subjected to semi-finish turning; a large end inner hole is supported through an elastic sleeve, the inner holes is subjected to finish turning through cooperation of a lathe center frame, and the small end face is subjected to finish turning; the lathe center frame is removed, a jacking tool is additionally mounted at a small end inner hole and jacked through a jacking tip, and the outer circle of the cylinder sleeve is subjected to finish turning; and the outer circle and the inner hole are polished through a polishing device. An elastic sleeve clamping tool is used, it can be guaranteed that rigidity is enhanced, and meanwhile it is also guaranteed thatclamping force of a chuck to a workpiece is kept consistent; in order to meet the requirement of the roughness of the outer circle, the polishing device is specially designed, a motor is utilized fordriving, and the special polishing device is designed for mounting a grinding wheel and polishing the outer circle and the inner hole; and the machining technology is high in working efficiency, lowin manufacturing cost, high in product precision and low in scrap rate.

Description

technical field [0001] The invention relates to a processing technology of a cylinder liner, in particular to a machining process of a thin-walled and deep-hole cylinder liner. Background technique [0002] As the cylinder liner structure of natural gas compressors is more and more common, the cylinder liner has the characteristics of thin wall, deep hole, high precision, wear resistance and replaceability. Processing is a difficult point in processing. The cylinder liner has a wall thickness of 20mm and a length of 640mm. In addition, it is made of cast iron and has large deformation. The original technology in the industry can no longer adapt to the processing of the current cast iron thin-walled cylinder liner. The waste rate of the original processing technology reaches about 50%, the yield rate is very low, and the production cost is quite high. In the domestic industry, the processing technology of thin-walled cylinder liners is generally as follows: splitting the two...

AI Technical Summary

Problems solved by technology

Originally, 14 processes were required, and the number of processes was too many, which not only caused the accumulation of errors to increase, but also caused the outer circle and inner hole of the cylinder liner to increase outward at the same time due to the expansion of the inner hole for many times, resulting in large deformation of the cylinder liner and waste products. High rate, low product quality, high manufacturing cost

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