TY - JOUR

T1 - Increasing the Measuring Accuracy of a Sensory Swing Clamp by Multi-Sensor Evaluation

AU - Denkena, Berend

AU - Bergmann, Benjamin

AU - Kiesner, Johann

N1 - Funding information: The authors thank the company Roemheld GmbH for their support and cooperation and the German Research Foundation (DFG) (Funder ID: 10.13039/501100001659) for funding the development of the sensory clamping system within the Collaborative Research Centre 653.

PY - 2019/9/19

Y1 - 2019/9/19

N2 - The growing flexibility of modern production systems complicates the quality assurance and process safety of mechanical processing. As an import component of milling machines, the workpiece clamping systems plays a quality-determining role within every milling process. Thus, a sensory workpiece clamping system that utilizes sensory swing clamps was developed in former research work in order to provide monitoring capabilities. This contribution deals with the experimental analysis of the multiple integrated sensors of the sensory swing clamp and the characterization of their measuring capability toward different measurands. By means of the stepwise linear regression method, different models were developed that enable the determination of the clamping force, the hydraulic pressure, and the piston position. The results verify that the multi-sensor evaluation significantly increases the measuring accuracy of a sensory swing clamp. Thus, the measuring accuracy is measurable with a standard deviation of 0.05 MPa for the hydraulic pressure, 101 N for the clamping force, and 0.62 mm for the piston position. Furthermore, the practicability and flexible use at varying boundary conditions is proved.

AB - The growing flexibility of modern production systems complicates the quality assurance and process safety of mechanical processing. As an import component of milling machines, the workpiece clamping systems plays a quality-determining role within every milling process. Thus, a sensory workpiece clamping system that utilizes sensory swing clamps was developed in former research work in order to provide monitoring capabilities. This contribution deals with the experimental analysis of the multiple integrated sensors of the sensory swing clamp and the characterization of their measuring capability toward different measurands. By means of the stepwise linear regression method, different models were developed that enable the determination of the clamping force, the hydraulic pressure, and the piston position. The results verify that the multi-sensor evaluation significantly increases the measuring accuracy of a sensory swing clamp. Thus, the measuring accuracy is measurable with a standard deviation of 0.05 MPa for the hydraulic pressure, 101 N for the clamping force, and 0.62 mm for the piston position. Furthermore, the practicability and flexible use at varying boundary conditions is proved.

KW - Clamping system

KW - Hydraulic fixture

KW - Inspection and quality control

KW - Integration of sensors

KW - Materials handling

KW - Monitoring

KW - Monitoring and diagnostics

KW - Production systems optimization

KW - Sensing

KW - Sensors

KW - Sensory component

UR - http://www.scopus.com/inward/record.url?scp=85074641064&partnerID=8YFLogxK

U2 - 10.1115/1.4044714

DO - 10.1115/1.4044714

M3 - Article

AN - SCOPUS:85074641064

VL - 141

JO - Journal of Manufacturing Science and Engineering, Transactions of the ASME

JF - Journal of Manufacturing Science and Engineering, Transactions of the ASME

SN - 1087-1357

IS - 10

M1 - 111007

ER -