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Abstract：
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The features of electrical screw presses are the availability of high deformation energy and high forging precision.Therefore,they are highly suitable for precise forging and they are used for forging all kinds of materials.A drive mechanism with a motor direct drive via the gear was presented,which used electric energy to accelerate the flywheel by changing the speed and output torque of the motor.This drive concept opened up the possibility of precise,computer-controlled energy regulation.Energy could be adjusted by the vector control or direct torque control with three-phase induction motor,the start current could also be reduced.A control system based on PLC and inverter was realized.A stroke pressure display unit composed of single chip microprocessor and the resistance wire strain gauge was also designed.This research was applied successfully in the practical work.
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Funds：
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湖北省科技攻关项目(2003AA102B03)
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AuthorIntro：
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Reference：
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[3]胡小伟.电动螺旋压力机机械和控制若干关键技术研究[D].武汉:华中科技大学,2003.
[4]李军超.基于PLC的电动螺旋压力机控制系统[D].武汉:华中科技大学,2004.
[5]熊晓红,黄树槐.塑性成形设备计算机控制技术[J].华中理工大学学报,1999,27(10):88-90.
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