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Design of A Linear Voice-Coil Motor for LED Die Bonding Application

Author: LiKe
Tutor: LouYunJiang
School: Harbin Institute of Technology
Course: Mechanical and Electronic Engineering
Keywords: LED automatic solid crystal Voice coil motor Finite Element Analysis Prototype development Optimal design
CLC: TM302
Type: Master's thesis
Year: 2010
Downloads: 95
Quote: 0
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Abstract


LED solid crystal belongs to an important part of the package LED production process equipment , whose task is the LED die by the swing arm system from the wafer tray isolated and fixed by adhesive to the corresponding carrier material . The accuracy of the vertical direction of the movement of the swing arm system , the key factors affecting the quality of the solid crystal , it affects the overall performance of the solid crystal machine . The Bonder swing arm system is multi- servo motor driven by the timing belt and cam mechanism , the the arm vertical direction to achieve solid crystal . Poor precision of its movement , and the actuator is relatively complex , not conducive to cost control . In this paper, the analysis arm of solid crystal structure system of a voice coil motor (Voice-Coil Motor, referred to as VCM ) for the improvement of the drive way , and its R \u0026 D and design of core components - the voice coil motor . Specific contents include : First, the thesis of the the solid crystal swing arm system dynamics modeling required to calculate motor thrust , combined with LED solid crystal process requirements, reasonable to calculate and propose the necessary design parameters of the voice coil motor . This paper describes the LED solid crystal swing arm with a permanent magnet voice coil motor design process , which includes electromagnetic quantitative calculation , including the selection of the permanent magnet material , the calculation of the volume , moving coil design , and the use of professional electromagnetic finite element analysis software Ansoft Maxwell 12, modeling and simulation , and repeated verification needed voice coil motor . The overall mechanical structure of the motor design and perfect simulation program . The design prototype according to the results of calculation and simulation speed loop controller , PID (ProportionIntegration Differentiation) as the position loop controller and select PI (Proportion Integration) bicyclo control architecture prototype experiment and test its dynamic performance . Then , through the establishment of the mathematical model of the voice coil motor , export motor electromagnetic force expressions using constrained nonlinear optimization algorithm and the differential evolutionary optimization iterative algorithm for solving the optimal design of the voice coil motor size , voice coil motor optimal design model . In this thesis , the simulation and experimental results show the effectiveness of the design . By the method of mathematical modeling to optimize the design of the motor , saving the motor production costs while greatly improve the performance of the voice coil motor .

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CLC: > Industrial Technology > Electrotechnical > Motor > General issues > Motor design,drawing
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