Title
Simultaneous Clamping and Cutting Force Measurements with Built-In Sensors.
Abstract
The intensity of the clamping force during milling operations is very important, because an excessive clamping force can distort the workpiece, while inadequate clamping causes slippage of the workpiece. Since the overall clamping force can be affected by the cutting forces throughout machining, it is necessary to monitor the change of clamping and the cutting forces during the process. This paper proposes a hybrid system in the form of a vise with built-in strain gauges and in-house-developed piezoelectric sensors for simultaneous measurement of clamping and cutting forces. Lead zirconate titanate (PZT) sensors are fabricated and embedded in a layered jaw to measure the dynamic forces of the machine tool. A cross-shaped groove within the jaw is designed to embed strain gauges, which predominantly measure the static clamping forces. Sensor fusion technology combining the signals of the strain gauges and PZT piezoelectric sensors is used to investigate the interactions between cutting forces and clamping forces. The results show average errors of 11%, 17%, and 6% for milling forces in X, Y, and Z directions, respectively; and 19% error for clamping forces, confirming the capability of the setup to monitor the forces in milling.
Year
DOI
Venue
2020
10.3390/s20133736
SENSORS
Keywords
DocType
Volume
clamping forces,cutting forces,vise with built-in sensors,PZT fabrication,sensor fusion
Journal
20
Issue
ISSN
Citations 
13
1424-8220
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Sina Rezvani100.34
Chang-Ju Kim200.34
Simon S. Park311.83
Jihyun Lee419528.17