Linear actuator

Abstract

A linear actuator (10) includes a cylinder main body (12). With respect to the cylinder main body (12), a slide table (14) is disposed for reciprocal displacement through a guide mechanism (16), which is disposed on the cylinder main body. A stopper mechanism (18) having a stopper bolt (82) is disposed on one end of the slide table (14) centrally in a widthwise direction perpendicular to the longitudinal direction of the slide table (14). In addition, when the slide table (14) is displaced along the cylinder main body (12), one end of the stopper bolt (82) comes into abutment with an end of a cover (96) of the guide mechanism (16), whereupon the slide table (14) becomes engaged therewith and movement of the slide table (14) is stopped.

Description

technical field [0001] The invention relates to a linear actuating device, which can make a slide table reciprocate along the axial direction of a cylinder body by introducing pressure fluid from a fluid inlet / outlet. Background technique [0002] Hitherto, a linear actuator made of, for example, a fluid pressure cylinder or the like has been employed as a means for transferring a workpiece. In Japanese Utility Model No. 2586276, the applicant proposed a linear actuator device, which can transport the Workpiece on slide table. [0003] Further, in Japanese Patent Laid-Open No. 2008-057679, a linear actuator equipped with a non-circulating guide mechanism is disclosed, wherein a plurality of steel balls are arranged in the main body between the guide rail and the slide table, thereby The steel balls are displaced following the displacement of the slide table. [0004] However, with the conventional technology as disclosed in the aforementioned Japanese Patent Laid-Open No....

AI Technical Summary

Problems solved by technology

[0004] However, with the conventional technology disclosed in the aforementioned Japanese Patent Laid-Open No. 2008-057679, for example, when the slide table is displaced under the condition that an unbalanced load is applied to the slide table, the guide rail left The steel balls on the side and right side are displaced, and with this displacement, the slide table may be tilted (skewed)

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