数字刀具测量系统的研究

Research of Numerical System for Cutter Measurement

刀具的几何参数是影响数控机床加工精度和生产效率的重要因素。研究了基于计算机视觉检测技术的高精度刀具测量系统,分析了运行原理和功能模块,并对关键技术做了论述。系统实现了对刀具的刀尖切削特征点、圆弧半径和切削角参数的自动精确测量,并将数值反馈到数控机床刀具数据库,具有较高的效率、精度和自动化程度。实验结果证明,系统测量重复性精度可达3μm。

Cutter parameters are important factors for machining accuracy and production efficiency.A cutter measuring system of high precision based on computer vision measurement was investigated, the measurement principle and functional module were ana-lyzed, and some key technologies were proposed.The system can get automatic and precise measurement of cutter point, arc radius and angle.The cutter parameters are stored in database of CNC.This system features high efficiency and precision and automatic level.The experiment result shows a repeatability of 3μm is achieved.