Positioning device for V belt length-measuring machine

Abstract

The invention relates to a positioning device for a V belt length-measuring machine. The positioning device comprises a pair of parallel mobile tracks. A mobile platform is arranged between the pair of mobile tracks; steps are arranged at the inner sides of the mobile tracks; the two sides of the upper end surface of the mobile platform are respectively provided with a supporting plate; a supporting shaft is arranged between two supporting plates; the two ends of the supporting shaft are provided with rolling wheels which are arranged on the steps of the mobile tracks respectively; the inner sides of the left supporting plate and the right supporting plate are respectively provided with a sleeve; a movable spiral shaft is arranged inside each sleeve; the outer end of each spiral shaft is provided with a positioning rod which passes through the supporting plate; the mobile tracks are provided with a plurality of positioning holes which are matched with the positioning rods respectively; the inner end of each spiral shaft is provided with a cavity; a central shaft which is arranged between the left spiral shaft and the right spiral shaft is arranged inside the cavities; the outer wall of each spiral shaft is provided with a U-shaped groove; the two ends of the central shaft are respectively provided with a blocking pin arranged inside the U-shaped groove; each spiral shaft is externally provided with a spiral groove; and each sleeve is externally provided with a pin shaft which passes through the sleeve and is inserted into the spiral groove. The positioning device is simple in structure and can accurately position the mobile platform of the V belt length-measuring machine; and therefore, the accuracy of V belt length measurement is ensured.

Description

technical field [0001] The invention relates to a positioning device for a V-belt length measuring machine, which belongs to the technical field of detection equipment. Background technique [0002] The V-belt length measuring machine is a kind of testing equipment for measuring the length and exposed height of the V-belt. It is composed of a host, a length measuring part, a exposed height measuring part, a length positioning device, and a mobile platform. The mobile platform can move on the moving track. The length and exposure height are measured by grating R. After the mobile platform moves for a certain distance, the measurement data of the V-belt length is not accurate enough due to the inaccurate positioning of the mobile platform. Contents of the invention [0003] In view of the above defects, the object of the present invention is to provide a positioning device for a V-belt length measuring machine with a simple structure, capable of positioning the mobile platfo...

AI Technical Summary

Problems solved by technology

[0002] V-belt length measuring machine is a kind of testing equipment for measuring the length and exposed height of V-belt. It is composed of a host, a length measuring part, a exposed height measuring part, a length positioning device, and a mobile platform. The mobile platform can move on a moving track. The length and exposed height are measured by grating R. After the mobile platform moves for a certain distance, the measurement data of the V-belt length is not accurate enough due to the inaccurate positioning of the mobile platform.

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