A method for detection of tooth wear difference of high-speed milling cutter under vibration

Abstract

The invention discloses a method for detecting the abrasion difference of cutter teeth of high-speed milling cutters under the action of vibration. The method is technically characterized by comprising the steps that firstly, the cutter tooth cutting motion speed and cutter skill contact relation under the action of vibration is built; secondly, a rear angle calculating equation under the action of vibration is calculated; thirdly, a cutter tooth friction contact point position calculating model and a cutter tooth friction contact point friction speed calculating model are constructed; fourthly, cutter tooth friction contact point positions and the cutter tooth friction contact point friction speed are analyzed, and the change rules of the cutter tooth friction contact point positions and the cutter tooth friction contact point friction speed are obtained; fifthly, an abrasion cutting test of the high-speed milling cutters is carried out; sixthly, cutting vibration signals are extracted and processed; seventhly, milling cutter abrasion cutting test data obtained in the fifth step is extracted; eighthly, the test results of the cutter tooth rear cutter face friction contact point positions and the friction contact point friction speed are obtained; and ninthly, a cutter tooth rear cutter face friction contact state model is verified. According to the method, bases are provided for relieving uneven abrasion and weakening fluctuating load excitation, and initial sample cutters are provided for efficient and high-precision cutting.

Description

Technical field: [0001] The invention relates to a method for detecting wear of a high-speed milling cutter, in particular to a method for detecting the difference in tooth wear of a high-speed milling cutter under the action of vibration. Background technique: [0002] In the process of high-speed milling, the difference in the initial wear of forced vibration under the impact of intermittent load affects the force state of the tool. In actual machining, problems such as severe tool wear, obvious tool vibration, low machined surface quality, serious tool damage, and decreased tool efficiency and service life are common, which seriously increases the uncertainty of milling cutter failure and restricts The safety of milling cutters and the application of high-efficiency milling in the processing of important parts and other fields. [0003] Different from ordinary milling, the cutting parameters used in high-efficiency milling are generally relatively large, and the conseque...

AI Technical Summary

Problems solved by technology

This method achieves the purpose of suppressing the wear of the cutter tooth at the cost of reducing the production efficiency by reducing the cutting parameters, and only solves the wear problem of a single cutter tooth, without considering the wear difference of multiple cutter teeth, and cannot achieve multi-cutter wear. Coordinated control of the wear of individual cutter teeth cannot solve the problem of shortened service life of milling cutters due to uneven wear of multiple cutter teeth

Existing studies have not revealed the specific impact mechanism of vibration on the tool-worker contact relationship, and there is a lack of research on safety prototype tools. It is necessary to make up for the defects in the safe and reliable design of the macrostructure of milling cutters.

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