文中阐述该厂根据轴承装配时需要冲压力大和工作行程短的特点,设计了具有低压快速趋近、气液增压压力机。它集中了气动和液压的优点,而避免了两者的缺点,而且具有体积小、重量轻、易制造、造价廉、冲压质量好等优点。介绍了压力系统的工作原理、增压缸的结构和工作原理、气液转换缸 的结构。附图5幅。 In this paper, according to the bearing assembly needs of the plant stamping force and the work of short stroke characteristics, designed with a rapid approach to low pressure, gas-liquid booster presses. It combines the advantages of pneumatic and hydraulic, while avoiding the shortcomings of both, but also has the advantages of small size, light weight, easy to manufacture, low cost, good stamping quality. The working principle of the pressure system, the structure and working principle of the pressurized cylinder, the structure of the gas-liquid switching cylinder are introduced. Figure 5 Figure.