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圆柱气浮轴承是某机械台体的关键零件,它具有重量大、精度及硬度高的特点。在无大型精密加工设备的情况下,对普通设备进行了精化和改装,并自行设计了专用工装与检具,保证了加工精度,为在一般工厂条件下加工大型精密零件积累了经验。圆柱气浮轴承是由气浮轴、轴套及上气浮板组成。其材料为38CrMoAlA,渗氮深度为0.4～0.5mm,HV900～950,零件重约90kg。气浮轴与轴套的结构尺寸及主要精度要求如图1、图2所示。
Cylindrical flotation bearings are a key component of the machine body, which has a large weight, high precision and hardness characteristics. In the absence of large-scale precision machining equipment, the general equipment has been refined and modified, and designed their own special tooling and gage, to ensure the processing accuracy, in the general factory conditions of processing large-scale precision parts has accumulated experience. Cylindrical flotation bearings by the flotation axis, the sleeve and the composition of the floating board. The material is 38CrMoAlA, nitriding depth of 0.4 ~ 0.5mm, HV900 ~ 950, parts weighing about 90kg. Flotation shaft and sleeve structure size and the main precision requirements shown in Figure 1, Figure 2 shows.