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Cut- off cold-formed profiles online arc control technology

Author: TianZhaoJun
Tutor: TianJianJun
School: North China University of
Course: Mechanical Manufacturing and Automation
Keywords: PLC Touchscreen Online cut off Cold-formed profiles Servo Control
CLC: TP273
Type: Master's thesis
Year: 2011
Downloads: 65
Quote: 0
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Abstract


Cold-formed profiles is a widely used economic walled steel, the cross section structure is reasonable, accurate geometry , variety of different specifications , widely used in various occasions. With the rapid development of roll forming technology , cutting length for cold-formed profiles online system technical updates and feature enhancements to improve production efficiency has become , reduce material waste , improve product quality of the key . At present , China's cold-formed profiles arc cutting device basically flying saw the car using the traditional sawing , cut to length accuracy is low , cut off frequency of slow , plant life is short , anti-interference ability, cutting cross-section of large deformations and burrs , greatly affected the profile processing enterprises production efficiency and product quality. The subject line for cold-formed profiles cutting arc control technology for a more in-depth research on the curved trajectory tracking forming solutions were designed, designed by AC servo motor with ball screw and linear guide drive implementation of the program , through leaning adjustment mode to adjust the tilt angle of curvature of the arc tracks . The subject of the use of the punching die cutting plan , cut off the power source with the hydraulic system , the hydraulic control system is designed. This topic is designed to PLC as the core of digital servo control system, PLC control system hardware selection and software design , the design of an incremental photoelectric encoder signal detection scheme as the core , and the control system was half closed-loop and closed-loop control theory , to build a semi-closed hardware system for closed-loop system of fuzzy PID control conducted a preliminary study for future technology upgrades to lay a theoretical foundation. The off -line system using a touch screen for position monitoring and display, designed a friendly man-machine interface . Finally, based on the theory of the subject off -line control system debugging and experimental . Experimental results show that the system is stable , length ± 0.5mm accuracy to meet the requirements of cutting frequency up to 1 times / s.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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