Linear sliding rail having limited travel

Abstract

The invention discloses a linear sliding rail having a limited travel. The linear sliding rail having a limited travel comprises a rail bar, a slider, multiple rolling elements and a retaining device. The retaining device mainly comprises a body member and two retaining members. The two retaining members are fixed respectively to two sides of the body member. A retaining part of each one of the retaining members is provided with multiple retaining bodies arranged axially. Each one of the retaining bodies has a concave part and each one of two sides of the concave part has a concave retaining surface. A receiving part is arranged between each adjacent two of the retaining bodies and the receiving part is used for receiving the rolling elements. A distance between the two opposite concave retaining surfaces of each adjacent two of the retaining bodies is more than a diameter of the rolling element. A distance between each adjacent two of the retaining bodies is less than the diameter of the rolling element. The retaining device has an axial expansion function and guarantees that the rolling elements are not disengaged by extrusion in installation.

Description

Technical field [0001] The invention relates to a linear transmission assembly, in particular to a linear slide rail with a limited stroke. Background technique [0002] Linear components are commonly used transmission components in the industry. They are widely used in various machines where linear motion is required for various purposes such as moving workpieces, transporting goods, or arranging workpieces. Therefore, it is not difficult to find that linear components play an important role in transmission in the industry, as well as the operating characteristics of frequent movement during their work. [0003] In this regard, in order to meet the needs of more diversified industries, the specifications of linear transmission components are becoming more and more diversified. The spacer disclosed in the case is a ㄇ-shaped gap between the sliding seat and the sliding rail. The spacer has a row of through holes in the track position provided by the sliding seat. The through holes ...

AI Technical Summary

Problems solved by technology

[0004] 1. The rolling elements are separated by a certain distance in pairs by the through holes, which reduces the number of rolling elements that can be installed, and the relative load capacity will also decrease

[0005] 2. The spacer does not have the function of axial extension, so the number of spacers cannot be expanded, which reduces the versatility

[0006] 3. The protruding piece set around the through hole is to partially hold the rolling body. When the spacer with rolling body is installed, the rolling body is easily squeezed out by the slide rail and cannot be effectively held. Easy to break, resulting in low yield and relatively high manufacturing cost

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