Laser heating-assisted milling device capable of real-time monitoring tool wear

Abstract

The invention discloses a laser heating-assisted milling device capable of real-time monitoring tool wear. The laser heating-assisted milling device capable of real-time monitoring tool wear comprises a milling device, a laser heating device and a real-time monitoring device. The milling device comprises a CNC (Computer Numerical Control) milling machine table, a milling cutter and a workpiece fixed to the CNC milling machine table; the laser heating device comprises a laser focus head; a laser light is incident on the surface of the workpiece through the laser focus head; the real-time monitoring device comprises a plurality of acoustic emission sensors, a signal processing module, a data acquisition processing module and an industrial personal computer; the acoustic emission sensors are arranged on the workpiece and are used for detecting acoustic emission signals of the milling cutter at a milling state; the acoustic emission signals are processed through the signal processing module and the data acquisition processing module and then are stored in the industrial personal computer; and through processing and analyzing, the real-time wear condition of the milling cutter is obtained.

Description

technical field [0001] The invention relates to a tool wear detection device, in particular to a laser heating assisted milling device which can monitor tool wear in real time. Background technique [0002] Laser heating assisted cutting technology is to focus a high-power laser beam on the surface of the workpiece in front of the cutting edge. In a short time before the material is cut, the local heating is heated to a very high temperature to change the machinability of the material at high temperature, and then Processing with cutting tools. By heating the material in a small local area, the plasticity of the material is improved while the yield strength of the material is reduced, the cutting force is reduced, the service life of the tool is extended, the generation of sawtooth chips is suppressed, and cutting chatter is prevented, so as to improve processing efficiency and reduce Cost, the purpose of increasing surface quality. [0003] Laser heating assisted milling ...

AI Technical Summary

Problems solved by technology

However, the materials processed by laser heating milling are usually difficult-to-machine materials for aerospace. Even if laser heating milling is used for processing, the wear of the milling cutter is relatively serious, which has a great impact on the processing quality of the parts. At the same time, it is necessary to remove the tool frequently The measurement of the wear value of the milling cutter greatly reduces the processing efficiency, and also brings about the problem of positioning when the milling cutter is clamped for the second time.

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