【摘要】 根据一种驱动桥壳整体复合胀形的新加工工艺及其胀形装置,结合胀形成型的功能需求,详细分析了管坯变形过程和两次更换中芯缸的作业工序,开发了与整体复合胀形装置相匹配的液压机系统和液压系统,并介绍了系统组成和工作原理。最后,讨论了管坯变形中内模组件的受力和运动情况,以及液压驱动执行机构作用于内模组件上的承载、位移、速度、加速度变化规律。开发的液压系统使用合理的调速、调压、同步、平衡、缓冲和方向控制等液压回路,驱动外模与内模组件联合承载,具有能耗低、发热量少、冲击小、稳定性好、运动精度高等特点。更多还原

【Abstract】 According to a new processing technology and bulging device for driving axle housing integral compound bulging, combined with the functional requirement of bulging deformation, the deformation process of tube blank and the operation procedure of replacing central hydraulic cylinder twice are analyzed in detail. The hydraulic press system and hydraulic system matching the integral compound bulging device are developed, and the composition and working principle of system are introduced. Finally, the force and motion of internal model components during tube blank deformation are discussed, as well as the load, displacement, velocity and acceleration change rule of hydraulic drive actuator acting on the internal model components. The developed hydraulic system uses reasonable hydraulic loops such as speed regulation, pressure regulation, synchronization, balance, buffer and direction control to drive the combined load-bearing of outer mold and internal model components. It has the characteristics of low energy consumption, less heat generation, small impact, good stability and high motion accuracy.更多还原