CAJ | 학술논문

高精度立式圆台磨床的动态特性直接影响到加工精度和精度稳定性。以某立式圆台磨床为研究对象，对整机动态特性进行现场测试和分析，得到其前几阶模态的模态参数，通过对模态频率、模态振型的分析，找到影响整机性能的关键薄弱环节。对磨床关键部件卧磨头支架和立柱进行了有限元分析和计算，利用方案比较法进行改进设计，提出了具体的结构改进措施。同时，研究了筋格尺寸对动态性能的影响。所得结论为磨床进一步的结构优化设计及动态性能的改善提供了依据。
고정도입식원태마상적동태특성직접영향도가공정도화정도은정성。이모입식원태마상위연구대상，대정궤동태특성진행현장측시화분석，득도기전궤계모태적모태삼수，통과대모태빈솔、모태진형적분석，조도영향정궤성능적관건박약배절。대마상관건부건와마두지가화립주진행료유한원분석화계산，이용방안비교법진행개진설계，제출료구체적결구개진조시。동시，연구료근격척촌대동태성능적영향。소득결론위마상진일보적결구우화설계급동태성능적개선제공료의거。
The dynamic characteristics of high-precision vertical grinder directly affect machining precision and accuracy stabili-ty. A vertical circular grinder was tested and analyzed in order to find the critical vulnerabilities affecting overall performance. The grinding head bracket and column were calculated by finite element analysis. Based on scheme comparison,the key parts were im-proved. The specific structural improvement measures were proposed. Meanwhile,the effects of rib size on the dynamic performance were studied. The results provide basis for optimal design and dynamic performance improvement in further development.