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随着科学技术的发展,液压技术在各工业部门的应用愈来愈广泛。应用液压技术的关键,在于要有合乎质量要求的液压元件,油缸则是液压元件中重要的一项。几年来,我们在生产钻机、油压镦管机以及修理改制8T 液压汽车吊等设备过程中,碰到了加工长油缸的难题。在攻克这一关键的过程中,我们曾了解了一些目前国内生产长油缸的技术现状。在加工工艺上都应用推镗或拉镗的方法(加工油缸一般分三次成形,也有一次成形的,但镗头构造甚为复杂)。其设备大都是长床身的大型机床,或为进口的长床身专用机床,
With the development of science and technology, the application of hydraulic technology in various industrial sectors is more and more widespread. The key to applying hydraulics is to have hydraulic components that meet quality requirements, and cylinders are an important part of hydraulic components. Over the past few years, we have encountered the problem of machining long cylinders in the production of drilling rigs, hydraulic upsetting machines, as well as the equipment for repairing and rebuilding 8T hydraulic truck cranes. In tackling this crucial process, we have learned some of the current status of the technology for producing long cylinders in China. In the processing technology are applied push boring or boring method (processing cylinder generally divided into three forming, there is a forming, but the boring head structure is very complicated). Most of its equipment is a long bed of large machine tools, or for the import of long bed dedicated machine tools,