Machining technology of guide rail

Abstract

The invention provides a machining technology of a guide rail, and belongs to the technical field of machinery. The problem that the qualified rate of machined guide rails is low in the existing machining process of the guide rail is solved. The machining technology of the guide rail comprises the following steps of A, selecting a set raw material hot-rolled round steel for surface treatment, andremoving defects of the surface; B, cold rolling forming; C, crystallization annealing; D, shot blasting; E, finishing; F, carrying out quenching treatment; G, straightening; and H, mounting hole machining. The machining process of the guide rail has the advantages of high precision of machined guide rails and high product qualification rate.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a processing technology, in particular to a processing technology of a guide rail. Background technique [0002] The guide rail is used to support and guide the moving parts, and do reciprocating linear motion in a given direction, generally can be divided into: roller linear guide, cylindrical linear guide, ball linear guide. Linear guides are used in linear reciprocating motion applications, have a higher rated load than linear bearings, and can bear a certain torque at the same time, and can achieve high-precision linear motion under high load conditions. Linear guides, like planar guides, have two basic elements; one as a guide is a fixed element, and the other is a moving element. There is no intermediate medium between the moving element and the fixed element of the linear guide rail, but rolling steel balls are used. It can also be understood as a rolling guide, which is...

AI Technical Summary

Problems solved by technology

[0003] At present, in the processing and production of guide rails, the commonly used method is to obtain blanks by full milling of round steel, punch holes, and then conduct overall heat treatment, and then use a grinding machine to flat grind and cut the blanks to obtain guide rails; but The work efficiency of flat grinding and cutting is low during processing

[0004] For example, the processing technology of a linear guide rail disclosed in a Chinese patent (application number: 201710010287.X) includes the following steps: 1. Select a suitable raw material cold-rolled steel bar to form a profile; 2. Cut the profile into several sections according to the drawing requirements , Through multi-axis different-knife machining, the profile is processed to form a mounting hole; 3. Heat treatment, heating to 840-860°C at a speed of 50-100°C / h, holding for 3-5h, and heating at 20-50°C / h h speed cooling to 200°C and air cooling to room temperature; 4. After heat treatment, put it on a magnetic levitation three-axis grinder for grinding and scraping to form a guide rail, but when the linear guide rail is processed by the processing technology, the pass rate of the guide rail is low