Numerically-controlled machine tool cutter wear monitoring device based on microphone array and machine vision

Abstract

The invention relates to a numerically-controlled machine tool cutter wear monitoring device based on a microphone array and machine vision. The device comprises a hydraulic rod which extends front and back, a piston rod of the hydraulic rod extends out of the front of a cylinder barrel, and the cylinder barrel is connected with a triangular bracket which is supported at the position close to the rear end and a fixed support which is supported at the front end. A guide hole for the piston rod to penetrate out is formed in the fixed support, the front end of the piston rod is connected with an L-shaped support, one side wall plate of the L-shaped support is fixedly connected to the piston rod, the other side wall plate of the L-shaped support faces forwards, an industrial camera located on the front plate face is installed on the forward wall plate of the L-shaped support, and a forward microphone array is connected to the lower portion of the forward wall plate. Through the combination of sound signals and image signals, the tool damage point is accurately identified and timely close observation is realized, so that the tool feature photographing precision and efficiency are improved.

Description

technical field [0001] The invention belongs to the field of real-time monitoring of equipment health status, and in particular relates to a CNC machine tool wear monitoring device based on a microphone array and machine vision, which uses a microphone array and a monitoring camera to monitor the wear status of a CNC machine tool in real time. Background technique [0002] At present, CNC machine tool is the abbreviation of numerical control machine tool, which is an automatic machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the numerical control device through the information carrier. After calculation and processing, various control signals are sent by the numerical control device to control the movement of the machine tool, and the parts are automatically processed according to the shape and size required ...

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the equipment used to collect tool images is an industrial camera, and due to the influence of pixels and zoom performance, the tools captured by fixed zoom have more noise, although after using the impurity removal algorithm, as much as possible These noises are removed, but due to the small deformation area of ​​the tool, the pixel distortion is still serious, resulting in serious distortion of the extracted tool features, which reduces the accuracy of subsequent data processing and compensation setting

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