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淬火机控制系统设计.pdf
23 2 Vol.23 No.2
2009 4 Refrigeration and Air Conditioning Apr. 2009.102105
1671-6612 2009 02-102-04
PLC
OMORON
I/O
,
PLC
TM273 B
Systemic Design for Quenching Machine Controller
Zhang Shisheng Zhang Dongmei
Zibo Vocational Institute Zibo 255000
Abstract Quench is the technology that a metal work piece heated to propriety temperature for a while is being put into
quenching medium suddenly. Quench can improve the rigidity and abrasion resistance of metal. Making use of PLC to control
quenching process, the quenching has simple technology, cheap price, stable function and convenient operation. This quenching
system constitutes heating system, quenching liquid cycle system, hydraulic pressure system and electric control system. The
quenching machine control system introduced in this thesis have three control mode manual-control, auto-control and try-piece
designed utilized OMRON PLC. This system can rise and fall worktable, clamp and relax work piece, sway forward and backwards,
control highness by approach-switch, control time by outer-timer, produce many kinds of auto-spring plate, meet the requirement of
auto-spring plate nowadays. It is presented in this thesis detailed control-demand, element list for electric control, I/O distribute list,
control LAD and three improved measure for system soft and hardware in the end.
Keywords PLC Quenching machine Electromagnetic valve LAD
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