An ultra-precision grinding temperature compensator and grinding process

Abstract

An ultra-precision grinding temperature compensator and grinding process, including a compensator, a three-axis worktable assembly, a measuring instrument, a sample fixing frame workbench assembly, a sample fixing assembly, and a standard sample; the temperature compensator controls the grinding process The circulating coolant is passed into the heating plate of the temperature compensator, and the standard sample is heated by the heating plate to keep the temperature of the standard sample consistent with the temperature of the processed part; then the measuring instrument is used to measure the dimensional change of the standard sample, and the dimensional change The amount is fed back to the processing and grinding machine tool to compensate the error of the processed parts due to temperature changes, thereby solving the problem of part size out-of-tolerance caused by thermal expansion and contraction during ultra-precision grinding; using the temperature compensator of the present invention, There is no need to place the grinding machine and the processed parts in a constant temperature environment, and the ultra-precision grinding process can be carried out at room temperature only according to a certain process, so it has the advantages of low environmental conditions, short processing cycle and low cost.

Description

technical field [0001] The invention relates to the technical field of mechanical processing ultra-precision grinding temperature compensation, in particular to an ultra-precision grinding temperature compensation instrument and a grinding process. Background technique [0002] It is known that during mechanical grinding, the temperature of the processed parts rises rapidly due to the grinding heat, so it is necessary to spray the grinding fluid to cool down; the grinding fluid is recycled, and as the grinding process continues , the temperature of the grinding fluid will gradually increase, so the temperature of the processed parts will also gradually increase with the temperature of the grinding fluid. When the processed part is ground to the required size, the grinding process ends, but the temperature of the processed part will be higher than normal temperature. As the temperature of the processed parts is gradually lowered to room temperature, the size of the parts wil...

AI Technical Summary

Problems solved by technology

This problem has little effect on the processing of parts with general precision size requirements, but for the processing of parts with ultra-high precision size requirements, this problem will lead to out-of-tolerance parts, so it becomes a problem that must be solved; the current processing technology to solve this problem It is to place the grinding machine tool and the processed parts in the set constant temperature environment. Before processing, the grinding machine tool and the processed parts need to be placed in the set constant temperature environment for a specified time before they can be processed; at the same time, during the processing The coolant used is also subjected to constant temperature treatment; this ultra-precision grinding process requires high environmental conditions, long processing cycles, and high costs. Enterprises that do not have the conditions cannot implement this process for ultra-precision grinding.

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