Numerical Control System Research And Online Test Of Numerical Control Ribbed Bars Straightening And Cutting Machine

GTK6/12 numerical control cold-rolled ribbed bars straightening and cutting machine is a scientific research production of YanShan University. For the first time in China, numerical control technology is imported on this kind of device to achieve high-powered flexible manufacture. Automatic length-fixing and cutting can be realized. Machining quantity, weight calculation, display failure and material waiting can be automatically set up. Whereas, error exists frequently when bars are cutted and badly affected putting the product into practice. Therefore the aim of this dissertation is to minish the error. We begin with what causes the error. Theory calculation and scientific inspection are used to do the research.Firstly, numerical control components are explained with electric knowledge. The working time of every part of executive system is calculated.Secondly, utilizing the basis theory of dynamics, the system periods is analyzed and theoretic periods is obtained. The cutting time of crank-block outfit and the relation formula are deduced. Error equation is acquired.To test the proportion between each factor of reason for error, the method of SCM(single chip micyoco) inspection online is put forward creatively. The numerical control system is tested comprehensively, mainly aiming at the output pulse count of photoelectric coder, electromagnetism valve and contacting switch. In this work we adopt AC4162 integrated programmable count timer. Meanwhile further research is made on timer precision. This difficult problem is solved effectively.At last, on the basis of theory calculation and inspection result, the reason for error is confirmed. A optimization theme is designed and take good effect.The GTK6/12 numerical control cold-rolled ribbed bars straighteningand cutting machine will be manufactured and has excellent market prospect.