機械方向畢設外文翻譯-文庫吧資料
2024-11-10 04:41本頁面
【正文】 efficiency, guarantee the welding quality and improve the lifetime. The thin wall pipe lathing and welding pound machine tool is posed of an automation lathing system and an automation welding system. With twinsmilling head, the pound machine tool can finish the lathing and weld ing process of the thin wall pipe and flange with no declamp operation. 2 Control System Design With the three degreeoffreedom Manipulators and a special clamp, the pound machine tool can realize the thin wall pipe lathing and welding on the same tool with out a second clamping. The motion model of the pound machine tool is shown in figure 1. The pound NC machine tool consists of three parts, a CH2020/S ONC 大連交通大學 2020 屆本科畢業(yè)生畢業(yè)設計（論文）外文翻譯 system made by BUAA as the control system, a corresponding AC motor and a photoelectric encoder as the executive ponent and the reactive ponent of servo system. NC device of the control system piles of the program and sends order to the servo system, and then the servo system controls the motor’ s movement. In the whole movement process, the photoelectric encoder mounted on the corresponding AC mo tor detects the displacement and velocity of the pound machine tool, and this information is feed back to controller by the feedback system. After paring the actual displacement and velocity with the target value and other information, the controller sends new orders to the corresponding AC motor to produce corresponding movement which can rectify the movement of the pound machine tool [1]. It is a realtime detection, feedback and closed loop control system. The whole control structure of the lathing and welding pound NC machine tool is shown in figure 2. Fig. 1. Motion model of the pound machine tool 大連交通大學 2020 屆本科畢業(yè)生畢業(yè)設計（論文）外文翻譯 Fig. 2. The whole control structure of the machine tool 3 Hardware Constructions The hardware part is posed of a CH2020/S control system, an AMK AC servo module and 8 induction AC servo motors. The CH2020/S control system is an open controller system which is based on the PC puter and field bus SERCOS technology, and its hardware construction contains two cards, one is the PC main board card, another is the SERCOSMaster card. NCPLC kernel operates the SERCOSMaster interface card with SERCOSMaster driver program and the SERCOSMaster card connects with the AMK AC servo module. The AMK AC servo module is used as the control module. The AMKAZ sends signals to AMK AW when any numeric control mand receives from SERCOS. And then the AMKAW exports the signals to three phase induction AC servo motors. The hardware construction of
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