机械机电类毕业论文(毕业设计)-lx400立式旋压机的设计.doc

摘要
随着数控技术的发展,利用旋压工艺加工成形形状复杂、尺寸不同的回转体零件时,制件的尺寸和形状精度更好,在材料的微观结构和表面质量方面表现优秀。
本论文以旋压成形工艺为基础,结合企业现有加工水平,开展了立式旋压机设计。根据企业在卧式旋压机设计方面的经验,液压系统、主轴箱等采用与卧式相同的成套设备。本课题设计立式旋压机主要的运动、导向、传动等机械机构部分,包括夹具夹紧固定进给以及旋轮进给机构等,将其合理安装在床身上。在设计过程中应用了AutoCAD对旋压机进行造型设计,采用三维设计软件UG对零件和旋压机开展设计,完成了三维实体建模和模拟装配。
设计中利用有限元软件ANSYS对转轴在额定压力下变形量和轴肩受力进行分析。由分析结果可知道,其变形量和剪切应力均低于转轴允许最大变形量和疲劳剪切极限,转轴设计尺寸满足使用要求。
关键词:旋压工艺;机构;建模;有限元
ABSTRACT
With the developing of C technology, the spinning process can create the turning hollow parts. The parts are more accurate in the size and shape,especially in the material microstructure and surface quality of performance.
In this paper, a vertical spinning machine is designed what based on spin forming process and the machining level of enterprise. With the designed experience of the horizontal spinning machine in the factory, the hydraulic systems and spindle box are the same with the horizontal one. The machine have some major body parts of campaign-oriented, ransmission machinery, including the fixed clamping fixture , feed roller feeding mechanism and so on. Its will be reasonable to install in bed. During the design process, AutoCAD is applied for the design. And UG what is the three-dimensional design software is carried out the parts and design, completed a three-dimensional solid modeling and simulation of the assembly.
In the design progress, the finite element software of ANSYS is used to analysis the deformation and stress of the shaft what is reduced by the rated working pressure. It is know that the deformation and shear stress are lower than that the shaft to allow the maximum shear deformation and fatigue limit form the results of the ANSYS. And so that the shaft meet the design requirement.
Keywords: Spinning process;Mechanism;Modeling;Finite element
目录
摘要................................................Ⅰ
ABSTRACT............................................Ⅱ
1 绪论............................................1
旋压工艺的研究概述.............................1