CAXA数控车床自动编程注意要点及难点解析

CAXA系列软件已经具有了非常丰富的功能,其应用范围涵盖了制造业的多种领域。CAXA系列软件的应用可以有效的解决手动编程过程中需要处理的大量计算问题,从而很大程度上缩短了编程所需的时间,同时可以减少人为错误,提升了编程效率和编程质量。本文主要对CAXA软件在自动编程中几点注意问题,并就几个难点问题进行解析。     

CAXA制造工程师

作为数控编程软件,CAXA制造工程师XP面向广大数控加工领域的用户,尤其为模具制造商提供了从三维CAD模型数据的接收、模具型腔型芯等复杂零件的三维造型设计、包括“粗、精、补加工”的自动数控编程、到通用机床后置处理等整个数控加工流程的解决方案。CAXA制造工程师XP最新版本     

CAXA EBV2在CNC车削手工编程中的应用

一,引言 数控车床加工的工件一般为回转体,其编程相对数控铣床更简单,目前采用手工编程方式较多。提高数控车削手工编程的精度及效率,是保证数控车床“优质、高效和低成本”加工的前提。 NC程序的编制过程大体如下:分析零件图纸→数控工艺处理→数学处理→编写NC程序→校验、调试NC程序→首件试切→对小批加工样件误差分析→根据系统误差修正NC程序。其中“数控工艺处理”及“数学处理”这两个编程准备环节对编制NC程序     

CAXA实体设计软件应用中的几点疑点探析

CAXA电子图板是一套在微机上运行的高效、方便、智能化的设计绘图软件,以交互绘图方式.对几何图形进行实时的绘制、编辑和修改,并能够存储各图形信息,由于CAXA电子版图的设计手段非常的形象化。而且它能在最大程度上使得设计人员发挥其创造性,从而缩短了新产品的设计周期,有助于促进产品设计的通用化、系列化、标准化。本文通过对CAXA实体设计软件应用中常见的注意要点及难点进行解析,望对注意事项进行归类,为设计人员起到一定的参考作用。     

CAXA编程助手应用小经验

“CAXA编程助手”是CAXA为数控机床操作工提供的,用于手工数控编程的小工具。它一方面能让操作工在计算机上方便地进行手工代码编制,同时也能让操作工很直观地看到所编制代码的轨迹。     

应用CAXA线切割进行数控加工自动编程

线切割加工一直是模具制造中一种常用的加工方法,其加工效率的高低.加工质量的好坏很大很大程度上取决于其数控编程软件系统.本文中所使用CAXA线切割系统是由北京数码大方有限公司推出的一款专门针对线切割加工的数控编程系统.虽然文章的加工实例软为简单,但内容全面、丰富,对读者了解和使用CAXA线切割系统定有帮助.     

CAXA数控车

系统要求 Windows95/98/NT:光盘软件、软件狗加密；基本配置为32内存，P166。     

CAXA编程助手的应用

CAXA制造工程师2008的编程助手是一款很好的用于手工编程的小工具,作者通过图文的方式将在实际工作中经常用到的几种结构手工编制的加工程序读入了CAXA制造工程师2008的编程助手中,实现了编程结果的可视化。     

利用CAXA软件实现数控机床DNC通信的设计

DNC通信是近代数控加工中提高劳动生产率、改善机床操作人员的劳动强度的有效途径.以广州数控GSK980TD系统为例,结合CAXA软件,介绍如何组建DNC通信.实践表明,数控车间建立DNC通信后,改进了生产,提高了效率.     

基于MasterCAM的零件数控加工编程

本文系统介绍了MasterCAM软件的特点和应用方法,就如何运用MasterCAM进行机械设计和加工进行了研究。     

基于MasterCAM的零件数控加工编程

本文系统介绍了MasterCAM软件的特点和应用方法，就如何运用MasterCAM进行机械设计和加工进行了研究。     

五轴联动数控加工中的微小程序段插补方法

针对五轴联动数控系统在加工微小程序段时频繁启动/停止导致机床产生剧烈振动的问题,提出一种五坐标微小程序段插补方法.该方法能够对多个微小程序段进行统一加减速处理,在保证加工精度的同时,实现对微小程序段的连续加工.五轴联动数控系统上的仿真实验结果表明该方法减少了加工微小程序段时的加减速频率,提高了加工速度.     

微处理器在超精密数控加工中的应用

本文简述了ＡＤＳＰ２１８１微处理器的特点,介绍了该处理器在超精密数控机床中的应用及数控系统下位机结构组成,给出了实验曲线和结果。     

数控技术在机械制造中的发展应用

随着计算机技术的快速发展,数控加工技术凭借精确和高效的优势,已经成为机械制造中的主流技术。主要分析了数控技术的发展现状和特点,并分析了数控技术在机械制造中的应用优势,以促进机械制造业的快速发展。     

Characterization of closed-loop measurement accuracy in precision CNC milling

This study investigates the closed-loop measurement error in computer numerical controlled (CNC) milling as they relate to the different inspection techniques. The on-line inspection of machining accuracy using a spindle probe has an inherent shortcoming because the same machine-produced parts are used for inspection. In order to use the spindle probe measurement as a means of correcting deviations in machining, the magnitude of measurement errors needs to be quantified. The empirical verification was made by conducting three sets of cutting experiments, followed by a design of experiment with three levels and three factors on a state-of-the-art CNC machining center. Three different material types and parameter settings were selected to simulate a diverse cutting condition. During the cutting, the cutting force and spindle vibration sensor signals were collected and a tool wear was recorded using a computer vision system. The bore tolerance was gauged by a spindle probe as well as a coordinate-measuring machine. The difference between the two measurements was defined as a closed-loop measurement error and the subsequent analysis was performed to determine the significant factors affecting the errors. The analysis results showed the potential of improving production efficiency and improved part quality.     

CAXA实体仿真设计的应用技巧

基于CAXA实体设计开发金属热处理多媒体仿真实验，能够很好地展现实验过程。真实形象的三维样机仿真模型的构建及运动仿真的应用，是当今发展研究热点。在三维实体动画仿真设计实现过程中，对于实现复杂实体造型的技巧设计，其关键．必须在构思中灵活巧妙地将二维图生成与三维设计结合起来，再对具体形状结构进行精确编辑：利用三维球技术能够满足动画仿真特殊路径的设计需求；合理运用贴图技巧，使仿真的视觉效果达到最逼真的程度。     

A methodology for the determination of foamed polymer contraction rates as a result of cryogenic CNC machining

The ability to produce products, suited to a particular individual is becoming more prevalent in today’s society. This requires more efficient and rapid methods for manufacturing of bespoke products. One such method being currently developed is the cryogenic CNC machining of soft materials for producing personalised shoe insoles and outsoles. A major element of cryogenic CNC machining is the freezing of the soft polymers, which subsequently contract. This paper describes a method for predicting and compensating for the effect of cryogenic material contraction for the commonly used shoe midsole foamed polymer, ethylene vinyl acetate (EVA). Using the linear coefficient of thermal expansion a scaling factor for EVA has been developed to enable it to be accurately cryogenically CNC machined. This factor is then applied to the X, Y and Z scaling within the Delcam CAM software to shrink the model. The process is tested for a series of EVA cube test pieces and the results provide a scaling factor, which shows that the linear scaled dimension are within 1% of the measured contracted X, Y and Z dimensions. The scaling factor is subsequently used on an example low density EVA orthotic insole, which is cryogenically machined and then compared dimensionally with the original CAD model. It was found that using the cryogenic contraction factor the cryogenically machined insole had a dimensional X, Y, Z error of less than 1% when compared and analysed with the original CAD model.