五轴数控旋压自动编程技术及仿真

发布时间：2018-03-12 15:50

本文选题：旋压　切入点：自动编程　出处：《沈阳航空航天大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着旋压技术从航空航天等军工领域逐渐向日常生活领域发展和壮大,旋压件的应用越来越广泛。旋压件形状的复杂程度和零件的质量要求也越来越高。但是,在旋压件的生产过程中,数控程序大多还是依靠传统的手工编写,并且这些程序在数控机床上一直在进行加工运用。但手工编程已严重制约了旋压技术的发展,影响了旋压零件进一步的应用。针对以上问题,本文提出了适用于SIMNS-840D数控系统五轴数控旋压机床的自动编程算法,基于CATIA/CAA进行开发,建立了一套自动编程软件。并且利用ANSYS有限元分析软件对生成代码仿真,得到可以在机床上直接应用的程序。利用脚本语言对ANSYS进行二次开发,在ANSYS软件中内嵌相应的数控程序仿真模块,实现了对程序代码的快速有效的仿真。本课题研制的系统实现了快速生成适合五轴数控旋压机床使用的数控程序,并可以对已生成的数控程序进行仿真,真正意义上实现了代码生成、仿真、加工一体化。本文在完成数控编程人员对复杂曲面、程序量大等无法完成的任务同时,还通过仿真减少了加工过程参数设计的不合理和数控程序编写的错误,不仅缩短了旋压零件从设计到制造的周期,降低了加工零件的废品率,提高了产品的质量,并真正实现了旋压制造数字化的目的。
[Abstract]:With the development and expansion of spinning technology from military industry such as aerospace to daily life, spinning parts are more and more widely used. The complexity of spinning parts and the quality requirements of parts are becoming more and more high. In the production of spinning parts, numerical control programs are mostly written by traditional hand, and these programs are used in NC machine tools all the time. However, manual programming has seriously restricted the development of spinning technology. In view of the above problems, this paper presents an automatic programming algorithm for five-axis NC spinning machine in SIMNS-840D CNC system, which is developed based on CATIA/CAA. A set of automatic programming software is established, and the generated code is simulated by ANSYS finite element analysis software, and the program that can be directly used in machine tools is obtained. The second development of ANSYS is carried out by using script language. The corresponding numerical control program simulation module is embedded in the ANSYS software, which realizes the fast and effective simulation of the program code. The system developed in this paper realizes the fast generation of the numerical control program suitable for the five-axis CNC spinning machine. It can simulate the generated NC program and realize the integration of code generation, simulation and machining. In this paper, the NC programmer can not complete the tasks such as complex surface, large amount of program, etc. Through simulation, the unreasonable design of machining process parameters and errors in NC programming are reduced, which not only shortens the cycle of spinning parts from design to manufacture, but also reduces the scrap rate of machining parts and improves the quality of products. The purpose of digitalization of spinning manufacturing is realized.
【学位授予单位】：沈阳航空航天大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TG659

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