Static characteristic detection device and measurement method specially for numerical-control pivot angle cutter head

Abstract

The invention discloses a static characteristic detection device and measurement method specially for a numerical-control pivot angle cutter head. A swing structure of the pivot angle cutter head is analyzed to find a kinematic characteristic rule of the pivot angle cutter head, and a cutter head static test method is provided to obtain deformation condition of the cutter head in different directions and loads. In the test process, a force sensor is used to record the magnitude of load applied to the pivot angle cutter head, a laser tracker records deformation amount of the pivot angle cutterhead in the directions X, Y and Z after bearing a force, a signal collection submodule transmits data recorded by the laser tracker to a single-chip microcomputer for processing, the single-chip microcomputer transmits the data to an industrial controller via a communication serial port, the industrial controller includes an MATLAB interface, analysis is made according to the data after an experiment, and deformation condition of the pivot angle cutter head in the static environment is obtained, and the static rigidity is detected. The static characteristic detection method is simple in operation, repeated use can be realized, and a higher precision can be achieved.

Description

technical field [0001] The invention belongs to the technical field of multi-axis machine tool machining with an accessory milling head, and specifically relates to the research on static characteristics such as deformation analysis under the static action of a swing angle milling head. Background technique [0002] The CNC swing angle milling head is the core functional component of the five-axis linkage CNC machine tool. It is the key to the five-axis linkage and high-quality machining of the machine tool. The structure of the swing angle milling head is as follows: swing head body, pull rod, tool taper Quick change connector male end, servo motor and transmission system. [0003] At present, in the field of precision and ultra-precision machining, various machining errors of machine tools directly affect the accuracy of the machined parts. Modern CNC machine tools are developing towards high precision, and machine tool rigidity is the premise to ensure high precision of m...

AI Technical Summary

Problems solved by technology

However, the force situation of the oscillating milling head under the action of static load is relatively complicated, and all the oscillating milling head mechanisms are divided into three swinging conditions: AB, AC, and BC. Therefore, it is necessary to design a device that can detect the above three working conditions Static stiffness testing device, and at present, the research and development of such a device for testing the static stiffness characteristics of the swing angle milling head is still immature

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