文档介绍：数控机床主轴支承系统设计
【摘要】
本论文主要阐述了数控机床主轴支撑系统的选用及日常维护,衡量数控机床的重要指标主要是衡量加工精度和机床使用寿命,而机床的主轴部件是机床的一个关键部件,主轴部件的工作性能直接影响到机床的加工质量和生产率,所以在选用主轴部件是应由其注意,既要考虑耐用、方便安装维修和日常保养,也要考虑一定的经济性。在现有的技术条件下,数控机床主轴支撑系统有滚动轴承、磁浮轴承、电主轴和静压轴承四大类。本论文主要从多个方面综合对比这四种支撑系统的优缺点,最后做出合理的选择。确定静压轴承为最佳设计方案。
关键词:数控主轴支撑
Abstract:The present paper mainly elaborated numerical control engine bed main axle support system selection and the routine maintenance, the weight numerical control engine bed important target mainly is weighs the processing precision and the engine bed service life, but the engine bed main axle part is an engine bed ponent, the main axle part operating performance affects directly the engine bed processing quality and the productivity, therefore is selecting the main axle part is should by its attention, also must consider durable, the convenient installment service and the current maintenance, also must consider certain efficiency. Under the existing engineering factor, the numerical control engine bed main axle support system has the rolling bearing, ism floats the bearing, the electricity main axle and the static pressure bearing four big kinds. The present paper mainly contrasts these four kind of support system from many aspect synthesis the good and bad points, finally makes the reasonable choice. Definite static pressure bearing for best design proposal.
Key word: Numerical control main axle support
前言
从中国机械工业联合会获悉:近几年来,我国机床行业每年以两位数的速度增长,迎来快速发展时期,国内机床行业呈现国有、民营、三资企业共同发展的局面,行业结构得到优化,整体素质明显提高。从2002年以来我国连续5年成为世界机床消费第一大市场,2005、2006年我国机床产值居全球第三,已成为世界机床大国。2007年1~10月份,%,利润同比增长37%,行业景气度继续维持高位运行。在国家大力振兴装备制造业、鼓励自主创新的大环境下,机床行业科研成果层出不穷,新产品开发成果显著,五轴联动数控机床、多功能复合机床等高性能数控机床产品初具规模,产品的数控化率逐年提高,国产化率持续提高,进口替代明显。一些机床优势企业通过兼并、收购、重组,特别是收购外资企业,在不断提高,力争“做大做强”。同时,伴随我国汽车、船舶、工程机械、航空航天等行业的快速发展,对机床行业提供了巨大的需求,我国机床行业的长期发展被看好。预计国内的机床消费将保持15%以上快速增长,而数控机床将保持30%左右的增速,数控机床每年将超过普通金属切削机床发展速度20个百分点以上,数控机床发展前景宽广。
从以上的数字可以看出,数控机床的产量在不断提高,但是仅解决产量问题是不够的,数控金属切削机床的加工范围、加工精度等方面也要不断的提高,这就要求设计人员可以借鉴外国的先进技术来完善