摘要
为了研究双刀立式数控法兰车床的薄弱部位,并对薄弱部位进行静动态分析,为优化设计提供依据。通过Solid Works三维软件建立整机三维模型,在ANSYS Workbench中,对整机简化模型进行模态分析,发现横梁是整机中的主要薄弱零件。取双刀架处于横梁中部位置时为极限工作位置,对横梁进行静态及模态分析,获得横梁的应力应变分布、固有频率和振型,分析表明:横梁中间位置变形最大,局部刚度分配不均匀,会影响机床的加工精度。通过静动态分析找出了零件的薄弱部位,为横梁的优化设计提供一定依据。
In order to study the weak part of the double-tool vertical NC Lathe,take static and dynamic analysis on the weak part to provide certain basis for optimization design. 3D model of the lathe was built through solidworks. Modal analysis of the simplified entire machine model was carried out. Through ANSYS Workbench,the beam was found as the major weak part of the entire machine. Taking the position that two tool rests in the middle of the beam as the extreme position. static and modal analysis of the beam was carried out. The stress and strain distribution,inherent frequency and mode of vibration were obtained. The biggest deformation was found in the middle of the beam,the uneven distribution of the local stiffness will affect the machining precision of the lathe. The results show that through static and dynamic analysis,the weak position of the part was obtained. The research can provide certain basis for optimization design of the beam.
出处
《轻工机械》
CAS
2015年第4期97-99,105,共4页
Light Industry Machinery
关键词
双刀立式车床
横梁优化
静态分析
模态分析
double-tool vertical lathe
optimization design of beam
static analysis
modal analysis
