High-stability step gauge and preparation method thereof

Abstract

The invention discloses a high-stability step gauge and a preparation method thereof, wherein the step gauge is provided with a base body; the base body comprises a pillar carrier arranged along one coordinate direction; gauge block installing blocks are distributed and configured on the pillar carrier, and measuring pieces are fixedly installed on the gauge block installing pieces. The high-stability step gauge is good in precision stability, small in dimension and powerful in function; through reasonable combination of the base body and the gauge block installing blocks, the shape change bias of the step gauge caused by self-weight of the base body and other factors is effectively and significantly reduced; material use and step gauge weight are reduced according to the minimized design of the base body specification; thus the high-stability and high-precision calibration entity are provided. Through taking a cylindrical rigid supporting body as the base body, the preparation provides the stable and low shape change performance on length direction; the suit gauge block installing blocks are high in stability of fixedly installation, and accurate in positioning assembly of the measuring pieces.

Description

technical field [0001] The invention belongs to a step gauge used for calibrating the movement accuracy of a machine tool workbench and a three-coordinate measuring machine, and in particular relates to a high-precision and high-stability step gauge and a preparation method thereof. Background technique [0002] Step gauge is also called pitch gauge and step gauge. It is arranged in a straight line with precise measuring parts and permanently fixed in a strong frame. It can be used to detect the movement accuracy of the machine tool table and calibrate the three-coordinate measuring machine. It is convenient to adjust the machine tool to compensate for the error and improve the positioning accuracy of the equipment. The step gauge is a stable multi-indication physical standard composed of a series of measuring surfaces, which mostly use a solid frame or substrate made of metal materials. In order to ensure the accuracy and stability of the measuring piece on the substrate, t...

AI Technical Summary

Problems solved by technology

The larger the size of the substrate itself, the smaller its deformation along the length direction. Therefore, in order to ensure the accuracy, the existing step gauge is relatively bulky, large in size, and high in production cost. Unable to adapt to the needs of the development of non-contact measurement technology

Furthermore, precision gauge blocks are commonly used as measuring surface generators, which are difficult to apply effectively to non-contact measuring equipment such as photographic measuring equipment.

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