查询词典 CAPP

In chapter 6, on the basis of the above research. A dynamic aided system of CAPP based PDM is developed. Phosphor CAPP system is developed based on Windchill system that is PDM system developed by PTC Corp.

该系统利用美国PTC公司的PDM产品Windchill系统提供的二次开发平台，采用面向对象等软件工程方法建模，利用Java语言开发而成。

With is new concept, we can set up the relational data model for part design features, machining method, database for cutting parameter, cutting tool, machine tool and gauge, which can support the development and applications of intelligent CAPP, CAD/CAPP and manufacturing oriented designing.

所定义的过程特征，不仅可以描述零件的信息模型，还用来建立了零件特征、加工方法、工艺数据库、刀具、量具和机床多种制造资源信息的联系模型，为智能化CAPP、CAD/CAPP集成系统以及面向制造的设计系统等开发和应用提供了技术支持。

Analysing the characteristics of the technology equipment for making the rectangle spline broach and the data for the rectangle spline broach"s technological design, selecting a programme for realization CAPP systems which is based on the management by data base, this CAPP system is composed of these models: the model of calculating the semi-finished product"s dimensions, the model of filling the manufacture process form, the model of filling the working procedure

分析了矩形花键拉刀制造过程中工艺装备的特点及其工艺设计所需要的各种资料和数据，选用了基于数据库的后台管理模式的由毛坯尺寸确定、过程卡填写、工序卡填写、时间定额确定、过程卡导入、工序卡导入等模块组成的计算机辅助工艺系统实施方案。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

The air cylinder jacket is an important spare part of the engine, it is usually produced by the flowing water line in batches, the precise of it"s production is very high.Generally specified equipments,tongs and cutting tools are adopted in it"s production,So in the course of the development of the air cylinder jackets CAPP, specified equipments, tongs and cutting tools must be considered.

气缸套是发动机的重要零件，其生产通常是采用流水线批量进行的，气缸套零件的加工精度高，工艺过程复杂，在生产过程中通常采用专用的设备，夹具和刀具，因此气缸套CAPP系统必须考虑生产过程中采用的设备、夹具和刀具。

Based on the above works, the framework of blanking CAPP system is built.

根据CAPP系统的功能模型和工艺设计流程，提出了冲裁件CAPP系统的框架结构。

This problem has become one of factors of hindering the perfect integration of CAD/CAPP/CAM system.

对CAPP系统在发展过程中的这个瓶颈问题提出了一个较为实用的解决方案。

A new design method of CAPP is proposed to adapt to the conceptual design of manufacturing system.

提出了以构造制造环境为背景的新型CAPP设计方法。

Process decision is the key point to the development of CAPP system.

工艺决策是CAPP系统开发的关键。

The part information description is of great importance to the reliability and quality of CAPP system.

零件信息模型对 CAPP系统的可靠性和质量具有决定性作用。

Core, self psychology is psychoanalytic, but there are crucial differences in how the patient-therapist relationship is viewed.

自体心理学的核心是精神分析，但在如何看待患者-治疗师关系方面，自体心理学和精神分析有着根本性的不同。

High-performance cars brake drum production costs increase less than 10%.

高性能汽车刹车鼓的生产成本增加小于10％。