种基于声发射的磨削状态测控方法及装置

• Format: Patent
• Language: Chinese
• Published: 12.06.2018
• Subjects: DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; PERFORMING OPERATIONS; POLISHING; TRANSPORTING

本发明涉及种基于声发射的磨削状态测控方法及装置，在学习阶段计算不同滤波频段的特征参数，获取工作阶段所需的最佳滤波频段，在工作阶段与学习阶段存储的特征参数实时对比，精确判断磨削加工状态，并把状态反馈信号输出给数控系统，使磨削加工中砂轮或工件采用分段磨削逐次完成，即完成单个工件的加工数控系统控制砂轮有多次进刀和退刀；空程阶段采用快速进给，磨削阶段采用慢速进给，从而缩短空程时间达到消空程的目的；同时检测磨削过程中的异常情况，防止造成设备损坏达到防碰撞目的。该系统实现了消空程、防碰撞的在线监测，提高磨削加工效率，实现磨削加工的自动化、智能化。 The invention relates to a grinding state detecting and controlling method and device based on sound emission. Characteristic parameters of different filtering frequency bands are calculated in the learning stage, and the optimal filtering frequency band required in the working stage is obtained; the stored characteristic parameters in the working stage and the learning stage are compared in real time; the grinding state is accurately judged; a state feedback signal is output to a numerical control system, and a grinding wheel or a workpiece adopts segmented grinding and successive completion during grinding, that is, the numerical control system controls the grinding wheel to perform repeated feed and retract when machining of the single work