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Abstract：
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A rapid die replacement system based on the double station concept was designed to overcome the defects in the aircraft skin stretch forming production, such as a long die replacement time, low degree of automation and frequent shutdown of stretch forming machine. This rapid die replacement system moved the die replacement work into the preparation area, and the stretch forming work of other batches of skin parts was conducted synchronously during the die replacement period. Therefore, this system presented a series of advantages, like simple structure, high efficiency of die replacement and high degree of automation, and the work efficiency of skin stretch forming production was improved significantly. Furthermore, for the problem of unbalance loading in the jack-up process of moving worktable, a hydraulic synchronous jack-up system based on PWM control was designed, and the simulation model of hydraulic synchronous jack-up system was established by software AMESim. The simulation result shows that the synchronous control accuracy of the hydraulic synchronous jack-up system is higher than the expected design goal, and the requirements of displacement synchronous control in the jack-up process of moving worktable are met.
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Funds：
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四川省重点研发项目(2018GZ0063)
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AuthorIntro：
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吕常伟（1994-），男，硕士研究生，E-mail：1621413847@qq.com；通讯作者：罗大兵（1973-），男，博士，副教授，E-mail：dbluo@swjtu.edu.cn
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Reference：
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