Cutter jumping volume and blade initial angle measuring method and device

Abstract

The invention discloses a cutter jumping volume and blade initial angle measuring method and device. By means of the method and the device, the spindle jumping volume measurement and the blade initial angle measurement can be completed synchronously. The cutter handle jumping volume and the cutter tooth jumping volume are acquired through two laser displacement sensors simultaneously. Data of the cutter handle jumping volume are used for calculating the cutter jumping volume, and data of the cutter tooth jumping volume and data of the cutter handle jumping volume are used for determining the blade initial angle simultaneously. Measurement angles are processed by a principal computer through serial port communication. The cutter jumping amount is obtained directly through calculation of the difference between the crest and the trough through data acquired by the laser displacement sensors at the position of the handle; the blade initial angle is obtained by calculation of the difference between the crest phases of two groups of data acquired through the laser displacement sensors at the positions of the handle and the blade.

Description

technical field [0001] The invention belongs to the technical field of machine tool performance testing, and more specifically relates to a method and device for measuring tool runout and initial angle of a knife edge. Background technique [0002] Ultra-precision machine tools are increasingly widely used in machinery manufacturing, especially in the field of high-precision molds. Since the workpiece generally has extremely high requirements on dimensional accuracy and surface topography and texture, in addition to the geometric accuracy of the machine tool itself, the deformation at the end of the tool also has a significant impact on dimensional accuracy. In order to improve the precision of the workpiece and control the shape and texture, it is particularly important to consider the cutting force modeling and the shape texture algorithm of the tool runout, in which the amount of tool runout and the initial angle of the blade are measured through experiments. Such as fi...

AI Technical Summary

Problems solved by technology

However, this patent can only measure the runout of the main shaft, and cannot be used to measure the initial angle of the blade. The function is relatively simple, and the application range is relatively narrow.

Since the milling tool rotates at high speed during use, the existing technology generally considers the tool as a cylinder to measure the tool runout, without considering the specific phase distribution of the cutter teeth in the rotating motion, which can meet requirements such as spindle performance evaluation, etc. General applications, but in some specific occasions, such as high-precision milling technology research, it is necessary to obtain the position distribution of the blade relative to the actual rotation center in real time. For this point, the existing technology cannot meet the requirements.

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