EVALUATION OF DC SERVO MACHINE-TOOL FEED DRIVES AS FORCE SENSORS

被引：46

作者：

STEIN, JL

COLVIN, D

CLEVER, G

WANG, CH

机构：

[1] Univ of Michigan, Ann Arbor, MI, USA, Univ of Michigan, Ann Arbor, MI, USA

来源：

JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME | 1986年 / 108卷 / 04期

关键词：

CONTROL SYSTEMS; NUMERICAL - Computer Applications - LATHES - Control Systems - MACHINE TOOLS - Electric Drive - MACHINERY - Control Systems;

D O I：

10.1115/1.3143795

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The electric current in the dc motor of a CNC machine tool can be inexpensively measured and used to calculate the tool/workpiece cutting force and the forces associated with drive system components. In order to characterize the bandwidth, sensitivity and accuracy of current monitoring on the feed system of a CNC lathe, a dynamic lumped parameter model of this sensor system is developed. The model is used to identify the system components that have a dominant effect on the behavior of the sensor. Tests were conducted in order to determine the model parameters, verify the model, and determine the signal-to-noise (S/N) ratio of the sensor. Feed system design changes, to improve the S/N ratio of the feed system as a tool and machine force sensor, are discussed.

引用

页码：279 / 288

页数：10