平面磨削有效切深在线测量方法

• Format: Patent
• Language: Chinese
• Published: 26.01.2018
• Subjects: DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PERFORMING OPERATIONS; PHYSICS; POLISHING; TESTING; TRANSPORTING

本发明涉及种平面磨削有效切深在线测量方法，首先将声发射传感器安装在机床加工区域，测量平面磨削稳定状态的声发射信号值，然后以声发射信号呈指数下降趋势计算出系统时间常数；最后推导出有效切深量与砂轮弹性退让量的比例，计算磨削临界时间及工件有效切深量。用声发射传感器进行数据测量，声发射传感器可以安装在加工区域的任何位置，克服目前由于位移传感器测量所带来的缺陷，有效简化精密零件的加工工艺流程，降低加工成本，提高整个工艺流程效率。 The invention relates to an online measurement method for the effective cutting depth of plane grinding. The online measurement method comprises the steps that firstly, an acoustic emission sensor is installed in a machining area of a machine tool, and an acoustic emission signal value of the stable state of plane grinding is measured; secondly, a system time constant is worked out according to the index downtrend of an acoustic emission signal; and finally, the ratio of the effective cutting depth quantity to the elastic receding quantity of a grinding wheel is derived, and the grinding critical time and the effective cutting depth of a workpiece are calculated. According to the online measurement method for the effective cutting depth of plane grinding, the acoustic emission sensor is used for data