System and method for measuring deformation of component in high and low temperature environments based on three-coordinate machine

Abstract

The invention relates to a system and method for measuring deformation of a component in high and low temperature environments based on a three-coordinate machine, and belongs to the field of thermal deformation measurement in high and low temperature environments. The deformation measurement system is established and comprises a mobile temperature control module, a circulating temperature control module, a measurement module and a test piece installation and arrangement module. Through the deformation measurement system and detailed sequential control design of each module, the method for measuring the deformation of the component in the high and low temperature environments based on the three-coordinate machine is realized, the problem that deformation measurement and pose measurement of a complex and irregular component in high and low temperature environments are difficult to realize by the three-coordinate machine is mainly solved, and the system and the method are suitable for measuring deformation, end face relative pose change and the like of components in different shapes in high and low temperature environments.

Description

technical field [0001] The invention belongs to the field of thermal deformation measurement in high and low temperature environments, and relates to a component deformation measurement system and method based on a three-coordinate machine in high and low temperature environments. Background technique [0002] In some machinery and equipment, the impact of structural thermal deformation on the accuracy of equipment due to temperature changes has always been a concern, and a reasonable and effective high-precision thermal deformation measurement method is an important means to study the characteristics of structural thermal deformation . At present, the mainstream methods for measuring the thermal deformation of the tested parts in the high and low temperature environment mainly include contact measurement methods and optical measurement methods, including the ejector type thermal expansion measurement method, laser interferometry, digital image correlation measurement method...

AI Technical Summary

Problems solved by technology

However, the current three-coordinate measuring machine measurement platform is an open platform, which can only be measured at room temperature for precise measurement work, and cannot accurately and stably control the temperature of the tested part. Few high-precision measuring equipment such as three-coordinate measuring machines The deformation measurement method used in high and low temperature environments is mainly due to the difficulty in adapting the conventional temperature control system to the three-coordinate operating system, mutual interference, difficulty in high-precision temperature control, and difficulty in ensuring measurement accuracy.

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