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MEASUREMENT OF INTERNAL THREAD OF THE NUT PART OF A ROLLER SCREW TRANSMISSION OF AN ELECTROMECHANICAL DRIVE

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A control over parameters of the internal special thread of the nut part included in the design of a roller screw transmission of an electromechanical drive is a difficult metrological task and is possible only using modern coordinate measuring equipment. The main problems associated with the control of the parameters of high-precision internal thread are considered. Methods of controlling the parameters of the internal thread are analyzed, measuring equipment that meets the accuracy requirements is selected, a method for evaluating the parameters of the internal special thread of the nut part is developed. The presented technique allows a full assessment of the thread parameters (pitch, average diameter, and the profile in axial section) based on the use of a contour meter with a double-sided probe. An algorithm of the analysis of the thread contour using the measured parameters is described.

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