论文部分内容阅读
气压传动由于其高效率、低成本和对环境没有污染,在制造业中,特别是在压力机中得到了广泛应用.但是,气动压力机有一个致命的缺点,就是气体极易泄漏,导致系统压力不能太高.因此,如何增加压力机的输出力及优化输出性能是设计者要解决的主要问题之一.针对一些传统压力机的不足,作者利用自行创新的方法——高副取代低副法,设计了将滑动副变为滚动副的基于无杆活塞缸与增力机构toggle的气动压力机.所提出的创新设计理念,可以使设计人员遵循一定的思维程序,仅仅通过改变增力机构toggle与无杆活塞缸的数量、联接模式和配置方式,就可重构出不同结构与性能的气动压力机,满足生产过程中对压力机布局、多工位、大输出力和变输出力的需求.同时提供了一些创新设计案例,给出了相应的简明力学计算公式,并对力学性能进行了对比.
Because of its high efficiency, low cost and no pollution to the environment, pneumatic drive has been widely used in the manufacturing industry, especially in the press.However, there is a fatal disadvantage of the pneumatic press, which is that the gas leaks easily and leads to the system The pressure can not be too high.Therefore, how to increase the output force and optimize the output performance of the press is one of the major problems designers need to solve.For some problems of traditional presses, the author makes use of their own innovative methods - Actually, a pneumatic press based on a rodless piston cylinder and a toggle mechanism with sliding pair is designed.An innovative design concept is proposed, which allows designers to follow a certain thinking process, toggle and the number of rodless piston cylinders, coupling modes and dispositions, pneumatic presses with different structures and performances can be reconstructed to meet the requirements of press layout, multi-station, large output force and variable output force in the production process Requirements.At the same time, some innovative design cases are provided, corresponding formulas of simple mechanics calculation are given, and mechanical properties are compared.