Rapid and accurate leveling method for three-point supporting precision measurement rotary table

Abstract

The invention discloses an accurate leveling method for a three-point supporting precision measurement rotary table, and belongs to the technical field of leveling of precision measurement rotary tables. According to leveling references of different sizes and different types, the adjustment proportion relation of the rotary table can be determined through geometric solution or trial adjustment, the morphology error of the reference surface is obtained through least square method fitting, then the adjustment amount of two adjustable supporting points is obtained through accurate calculation incombination with bounce data of the supporting points, and leveling work is guided to be carried out rapidly. The method covers two conditions of an end surface reference and a double-radial-surface combined reference, and guidance can be provided for leveling work more comprehensively. The mutual influence relation of the adjusting processes of the two adjustable supporting points is effectivelyconsidered, the adjusting amount of the precision three-point supporting rotary table is determined through quantitative calculation, the number of times of repeated adjusting can be greatly reduced,and leveling work is faster. The influence of the shape error of the reference surface is considered in the calculation process, so that the leveling result is more accurate.

Description

technical field [0001] The invention belongs to the technical field of precision measuring turntable leveling, and relates to a precise leveling method for a three-point supporting precision measuring turntable. Background technique [0002] The precision measuring turntable is widely used in the measurement and assembly of aero-engines, etc., mainly to position and clamp the parts, and drive them to rotate to assist in the completion of the measurement work. In order to suppress the clamping error caused by the misalignment of the parts and the rotation axis of the turntable and improve the measurement accuracy, the turntable must be adjusted, and leveling is a key step. This process adjusts the turntable so that its rotation axis is perpendicular to the reference plane (the end face is the reference) or parallel to the reference axis (the double-diameter surface is the reference). [0003] The leveling device of the precision turntable is usually a three-point support str...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantages of the above-mentioned prior art, such as the lengthy adjustment cycle of the three-point support precision measuring turntable leveling method, the inaccurate leveling result and the inability to be used for joint reference adjustment of double radial surfaces, and to provide a three-point support precision Method, system, device and storage medium for precise leveling of measuring turntable

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