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Development of Control System of High-speed ATC of Machining Center  

Han, Dong-Chang (Dept.of Electric Engineering, Graduate School of Yeungnam University)
Lee, Dong-Il (Dept.of Electric Engineering, Graduate School of Yeungnam University)
Song, Yong-Tae (Dept.of Mechanical Engineering, Graduate School of Yeungnam University)
Lee, Seok-Gyu (Dept.of Electronics Information Engineering, Yeungnam University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.9, 2002 , pp. 125-132 More about this Journal
Abstract
We use a compound-cam twin arm structure and random tool access method to achieve a faster ATC (Automatic Tool Changer) system for the accurate position and rotation control of a tool magazine and an exchange am. Based on the data obtained from various sensors, it is possible to follow the sequence of commands in each control step for an exchange arm. However, it is not so easy to reduce the exchange time of the system because of the slow responses of the sensors and execution mode delays of PLC (Programmable Logic Controller) scan time. In this paper, we propose a new programmed limit-switch position control method to obtain the shortest possible delays for the random tool access method and compound-cam twin arm structure. With some experimental results, we have achieved below 0.9sec tool exchange time with the proposed method.
Keywords
ATC; Random tool access method; Tool exchange time; Magazine; Compound-cam;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 고정한, 강기영, 이상조, '서보모터를 이용한 자동공구교환장치의 개발,' 한국정밀공학회지, 제16권, 15호, pp. 66-73, 1999   과학기술학회마을
2 Web site, http://www.machinet.com.
3 YASKAWA, 'YASNACJ300/J100 PLC プログラミソグマニュル,' 자료번호 SI_C884-01, pp. 4-1-6-86, 1998
4 송용태, 'HSYS R&D 고속 ATC 사양분석표,' 하일시스알엔디, pp. 1-5, 2001
5 김두형, '3차년도 최종보고서(제2절 ATC신뢰성 시험기개발),' 기계연구원, pp. 5, 2001
6 삼성전자, 'FARA PLC N-700 사용자 Manual,' 삼선전자 메키로닉스팀 제어기사업그룹, pp. 26, 2001