某厂大型冲模的磨削需要加工直径达φ1700mm的磨床,目前国内尚无定型产品,进口大规格立式磨床费用很高.为此,我们将一台旧C512A立车改造成单柱式磨床.同时,将加工直径由原立车φ1250mm增大至φ1700mm,使用效果良好.该磨床采用端面磨法磨削平面,圆周磨法磨削内外圆及内外圆锥面.机床的改装结构不复杂,经济实用.在改装设计及制造过程中,遇到和解决了一些特殊问题 The grinding of a large die of a factory needs to grind the grinding machine with the diameter of φ1700mm, at present, there is no fixed-type product in China, and the import of large-size vertical grinding machine is very expensive, therefore, we transform an old C512A vertical lathe into a single-column grinder. At the same time, the processing diameter increased from the original car φ1250mm φ1700mm, the use of good results. The grinding machine uses face grinding grinding plane, the inner and outer circular cylindrical grinding process and the inner and outer conical surface. The modification of the machine structure is not complicated, economical and practical In the process of retrofitting design and manufacturing, some special problems were encountered and solved