摘要：在船舶制造业发展的当下，对船用柴油机的需求有了很大的提升，对于船用柴油机的制造，一般的生产企业会选择重点加工其中的典型零件，如曲轴、连杆、箱体、缸盖等。典型零件的加工影响着企业的生产力与竞争实力，而夹具的设计与研究则能有效保障零件生产制造的质量。目前为止，夹具也已经发展出了相当完备的标准件体系，常见的夹具中的大部分零件均为标准规格，使用标准件进行设计能降低夹具的制造成本，缩短设计周期，简化设计难题。

本论文从船用柴油机典型零件夹具与参数化图库这两方面出发，归纳了一些典型的专利夹具设计，分析了各种专利方案的实用性，提取出可参考的部分用于船用柴油机典型零件夹具的设计。针对现有参数化图库需联网使用的问题，选择UG作为软件平台，通过部件族与重用库的结合，建立了一个船用柴油机典型零件夹具常用件的参数化图库，作为夹具设计人员的参考案例，为未来的夹具设计提供潜在的解决方案和设计思路。

关键词：标准件库；重用库；参数化建模

Abstract：In the shipbuilding industry development of the moment, the demand for marine diesel engine has been greatly improved, for the manufacture of marine diesel engines, the general production enterprises will choose to focus on the processing of typical parts, such as crankshaft, connecting rod, basis, cylinder and so on. Typical parts of the processing of the enterprise's productivity and competitive strength, and fixture design and research can effectively protect the quality of parts manufacturing. So far, fixtures have also developed a fairly complete standard parts system, most of the common fixture parts use standard parts. Using standard parts can reduce the fixture manufacturing costs, shorten the design cycle and simplify the design problems.

In this paper, some typical patented fixture designs are summarized from the aspects of typical parts fixture and parametric library of marine diesel engine. The practicality of various patent schemes is analyzed, and some of the reference parts can be used to extract the typical parts of marine diesel engine design. At the same time, in order to solve the problem of using the existing parameter library, we choose UG as the modeling software, set up a parameterized library of typical parts of marine diesel engine. The library also has a few non-standard parts and typical fixture, as fixture design personnel reference case for future fixture design to provide potential solutions and design ideas.

Keywords: Standard Parts Library; Reuse Library; Parametric Modeling

目录

第一章绪论-1

1.1研究背景--1

1.2研究现状与发展--1

1.2.1船用柴油机零件夹具--1

1.2.2参数化图库-2

1.3存在不足与待解决问题--3

1.3.1船用柴油机零件夹具--3

1.3.2参数化图库-4

1.4本课题主要研究内容-5

1.4.1夹具标准件库--5

1.4.2参数化夹具装配体-5

1.5设计与实现方法--5

1.5.1UG平台的标准件图库-5

1.5.2夹具装配体参数化入库6

第二章夹具标准件参数化图库7

2.1软件背景介绍-7

2.2参数化建模方法--7

2.2.1表达式概念-7

2.2.2基于特征8

2.2.3基于草图--10

2.2.4基于装配--12

2.2.5建模方法总结-14

2.3建库方法对比与选择14

2.3.1部件族建库14

2.3.2重用库建库16

2.3.3GRIP建库--18

2.3.4建库方法的比较与选择--18

2.4图库构建-19

2.4.1筛选标准件19

2.4.2参数化模型建立--20

2.4.3部件族与数据表--22

2.4.4重用库与可重用部件-24