车齿刀齿形计算及计算机辅助设计

发布时间：2018-06-02 13:56

本文选题：刀具设计 + 车齿刀　；参考：《西安工业大学》2017年硕士论文

【摘要】：车齿法是一种高效率高精度的齿轮加工工艺,相比传统的滚齿、插齿加工工艺效率更高,且应用范围非常广,特别是对于非贯通的螺旋内齿轮加工,具有明显的优势。车齿刀具作为车齿工艺中关键的组成部分,其设计方法的研究是推进车齿工艺向前发展的最重要因素之一。鉴于此种情况,本文针对车齿工艺进行了研究,提出了一种适用于车齿加工工艺的通用刀具结构形式和刃形的设计方法,在此基础上开发了车齿刀CAD软件,并通过VERICUT仿真软件对所设计的车齿刀具进行了验证。首先,本文基于空间交错轴齿轮啮合原理,建立了车齿刀切削内齿圆柱齿轮的数学模型;由曲面共轭原理,建立刀具与工件的啮合方程,并与工件齿面方程联立得到啮合线方程;利用坐标变换矩阵,得出了与工件齿面相啮合的曲面,即刀具齿面的数学模型;然后选择合适的前刀面与刀具齿面求交,所得的空间曲线即为车齿刀具的主刃刃形。其次,根据上述车齿刀具设计的理论基础,以Visual C++6.0为开发工具,通过AutoCAD的二次开发软件工具Auto LISP,利用ODBC技术,完成了车齿刀CAD软件的开发。本系统采用模块化的软件开发原理,将系统分为参数输入模块、设计计算模块、CAD绘图模块、数据库管理模块,通过这四大模块之间的数据交换,最终输出了车齿刀具的设计工程图。最后,通过Pro/E构建车齿机床和车齿刀具模型,并导入VERICUT软件中完成车齿加工仿真实验,利用软件自带的自动对比功能得出仿真实验结果。通过分析仿真结果验证了该车齿刀具刃形设计方法的正确性,为进一步对车齿工艺的研究提供了指导意义。
[Abstract]:Turning gear method is a kind of gear machining technology with high efficiency and high precision. Compared with traditional gear hobbing, gear shaper machining is more efficient and has a wide range of applications, especially for non-through spiral internal gear machining, which has obvious advantages. As a key part of the wheel gear process, the research of the design method is one of the most important factors to promote the development of the wheel tooth process. In view of this situation, this paper has carried on the research to the lathe tooth craft, has proposed one kind of general tool structure form and the blade shape design method which is suitable for the turning tooth processing technology, and has developed the lathe tooth cutter CAD software on the basis of this. The designed tool is verified by VERICUT simulation software. First of all, based on the meshing principle of spatial staggered shaft gears, the mathematical model of cutting inner cylindrical gears with wheel teeth cutter is established, and the meshing equation between cutting tool and workpiece is established according to the principle of surface conjugation. The meshing line equation is obtained with the tooth surface equation of the workpiece, the mathematical model of the surface meshing with the tooth surface of the workpiece is obtained by using the coordinate transformation matrix, and then the proper front cutter surface and the tooth surface of the cutter are selected to obtain the intersection. The space curve obtained is the main edge shape of the tool. Secondly, according to the theoretical basis of the design of the lathe tooth cutter, the development of the CAD software of the lathe tooth cutter is accomplished by using the ODBC technology, taking Visual C 6.0 as the development tool, through the secondary development software tool Auto list of AutoCAD. The system is divided into parameter input module, design and calculation module CAD drawing module, database management module, data exchange between the four modules, the system is divided into parameter input module, CAD drawing module and database management module. Finally, the design engineering drawing of the tool is output. Finally, the model of the lathe tooth machine tool and the lathe tooth tool is constructed by Pro/E, and the simulation experiment is completed in the VERICUT software, and the simulation results are obtained by using the automatic contrast function of the software. The correctness of the design method is verified by analyzing the simulation results, which provides guidance for the further study of the wheel tooth technology.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG61

【参考文献】