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A study on the design, manufacturing and performance evaluation of air bearing spindle for PCB drilling  

Kim Sang-Jin (충남대학교 기계공학과 대학원)
Bae Myung-Il (충남대학교 기계공학과)
Kim Hyeung-Chul (충남과학대학 기계자동차과)
Kim Ki-Soo (충남대학교 기술교육과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.4, 2006 , pp. 29-36 More about this Journal
Abstract
Micro drilling by high-speed air bearing spindle is very useful manufacturing technology in electronic industry For the design of high speed air bearing spindle, there are considered stability of air bearing spindle, allowable load of air bearing, run out and tooling system design for micro drill's attach and remove. According to suggested details, we designed and manufactured high-speed air bearing spindle and carried out performance estimation such as run out, temperature change in running air bearing spindle, stiffness, chucking torque. Results are follows; Run out was measured under $5{\mu}m$ at air bearing spindle revolution $20,000\sim125,000rpm$. High speed air bearing spindle's temperature rose about $20^{\circ}C$ after 5 minutes from running and then was fixed. Allowable thrust load of spindle was 17kgf. Chucking torque of collet was 15kgfcm.
Keywords
Air bearing spindle; Change of temperature; Natural frequency; PCB(printed circuit board); Radial bearing; Run-out; Stiffness; Thrust bearing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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