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一、概述为提高轴承套圈毛坯的几何精度、尺寸精度和一致性,国外的轴承生产在锻造成形或扩孔以后广泛采用整径工艺。例如:日本精工轴承公司(NSK)和光洋轴承公司(KOYO)的400和1600吨压力机锻造套圈生产线均配有整径设备;西德瓦格纳(Wagner)公司的轴承锻造自动线也配有;西德FAG轴承公司除采用高速镦锻机的锻件和大型套圈锻件外,其平锻机、压力机和自动锻锤的锻件等均采用了整径工艺;苏联对平锻机锻件采用了重新加热进行的半热整径工艺,对具有磨削留量的精密辗扩套圈在辗扩前还采用二次整形的工艺。整径工艺可整套圈外径或内径,必要时还可在整径的同时整其高度以提高端面质量。一般情况下,圆筒形的套圈整外径;圆锥轴承外圈整外径、内圈
I. Overview In order to improve the geometric accuracy of the bearing ring blank, dimensional accuracy and consistency, the foreign bearing production widely used after the forging forming or reaming diameter technology. For example, the 400 and 1600 ton press forging rings at NSK and KOYO are all equipped with full-diameter devices; Wagner’s automatic bearing forging line is also equipped with; West Germany FAG bearing company in addition to using high-speed upsetting forging and large ferrules forging, the forging machine, presses and automatic forging forgings, etc. are used in the whole diameter process; the Soviet Union forging forgings reheat The semi-thermal diameter of the whole process, with grinding the remaining volume of precision rolling ring before rolling also used two plastic surgery. The entire diameter of the entire process can be outside diameter or diameter, if necessary, but also in the entire diameter at the same time the entire height to improve the quality of the end. Under normal circumstances, the outer diameter of the cylindrical ring; cone outer diameter of the outer ring, the inner ring