초록 ▼

A method for the production of a guide rail for linear guiding and having a hardened rolling body race groove on opposite sides of the guide rail. In order to minimize production costs and avoid cutting of the race grooves, the race grooves are initially spaced at a distance that is greater or small

A method for the production of a guide rail for linear guiding and having a hardened rolling body race groove on opposite sides of the guide rail. In order to minimize production costs and avoid cutting of the race grooves, the race grooves are initially spaced at a distance that is greater or smaller than their finally desired value, by an incremental distance. Grooves are provided centrally in the guide rail between the opposed race grooves, and the race rail is then hardened except in the region of the central grooves. Compression rollers in the race grooves or central grooves are then forced into the guide rail to decrease or increase respectively the distance between the race grooves until the desired distance therebetween is obtained. The method can also be employed when only a single race groove is provided on the rail.

대표청구항 ▼

A method for production of a guide rail for linear guides, wherein at least one hardened linear race groove for rolling bodies is provided on each of a pair of opposite sides of the guide rail, the race grooves being parallel, the bottoms of said grooves being spaced apart a given distance along the

A method for production of a guide rail for linear guides, wherein at least one hardened linear race groove for rolling bodies is provided on each of a pair of opposite sides of the guide rail, the race grooves being parallel, the bottoms of said grooves being spaced apart a given distance along the connection line of minimum length between the bottoms of the groove; the improvement comprising initially spacing the bottoms of said race grooves to have a spacing along said connection line that differs from their ultimate desired dimensions A by an incremental dimension x, the central section of the guide rail between the race grooves having an elongated recessed region of reduced thickness along a plane normal to said connection line between said race grooves, said recessed region extending coextensively with and for the total length of said grooves, said plane being equally spaced from said bottoms of said grooves on opposite sides of said rail, said thickness being measured at right angles to said connection line, thereafter hardening the guide rail except in said recessed region and finally compressing the rail in a direction substantially perpendicular to said plane until the race grooves are separated by the final desired dimension A, by means of first pressing tools positioned respectively in said pair of opposing race grooves.