论述了平行缝焊设备的研制及总体设计方案，介绍了机体、电源系统、机械系统、控制系统及其相互配合。
This paper discusses collectivity project for design of parallel welding equipment, and introduces machine's frame, power supply, mechanical system, electric control system and their mutual interface.
平行移动是由液压油缸推动，通过推动轴承传到推杆、同步盘，并相互配合实现的；
Level move is realized by the co-operation of oil vat, handspike and synchronizer.
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