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Actuators 2017, 6(3), 25; https://doi.org/10.3390/act6030025

Optimization Design of Electromagnetic Actuator Applied as Fast Tool Servo

1,2,* , 3
and
1,2
1
School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China
2
Tianjin Key Laboratory of High Speed Cutting & Precision Machining, Tianjin University of Technology and Education, Tianjin 300222, China
3
Tianjin Institute of Metrological Supervision and Testing, Tianjin 300192, China
*
Author to whom correspondence should be addressed.
Received: 21 June 2017 / Revised: 6 August 2017 / Accepted: 8 August 2017 / Published: 18 August 2017
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Abstract

Fast tool servos (FTS) for single point diamond turning are widely employed for machine optical free-form surfaces. A FTS with a large stroke and a high bandwidth can increase the efficiency of a machine and complexity of a work-piece. In this paper, a FTS driven by a Maxwell electromagnetic actuator is developed to obtain a relatively large stroke and high bandwidth. In this study, a multi-objective optimization model is proposed based on the whole system by considering electromagnetic driving principles, kinematic model, and mechanical model. The proposed optimization model can be applied to solve the parameters of electromagnetic actuators with diverse application requirements. A sequential quadratic programming (SQP) algorithm is implemented to solve the problem. The optimization results are verified through both finite element analysis and experiments. The optimized FTS can produce 49.55 μm of full stroke with a frequency response of 3.2 kHz. View Full-Text
Keywords: electromagnetic actuator; fast tool servo; freeform optics; sequential quadratic programming electromagnetic actuator; fast tool servo; freeform optics; sequential quadratic programming
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Nie, Y.; Du, Y.; Xu, Z. Optimization Design of Electromagnetic Actuator Applied as Fast Tool Servo. Actuators 2017, 6, 25.

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