共查询到20条相似文献,搜索用时 93 毫秒
1.
阐述了检具的基本构成及其检测原理,结合应用实例提出了汽车车身冲压件检具设计开发的一般方案及各功能部件的设计方法和相关要求,为检具的设计开发提供了参考依据,对于其它零部件检具的设计也有一定的参考价值。 相似文献
2.
3.
4.
研制了一种小模数花键辅助检具。该检具具有偏心凸轮结构,用参数化设计的方法进行设计。对检具的结构以及使用方法做出了说明,并进行了参数化自动测量和结果比较。 相似文献
5.
汽车检具对提升产品关键精度起到至关重要的作用。以检具的设计原则为基础,从提高零件的精度一致性、检具的使用效率和利用率,以及降低工装开发成本等为目的,对检具的开发过程进行研究。检具开发过程中通过设计方法的优化和检具制作技术的改进,在不断提升产品质量、缩短产品开发周期的同时,提高了产品竞争力。此外,通过合理规划工装开发,减少工装开发数量,现场管理更加方便和有序。目前检具的设计过程中,此类方法已得到应用。 相似文献
6.
7.
汽车前车门内板检具设计 总被引:1,自引:1,他引:0
介绍了汽车前车内板上的部分孔位检测方法及检具设计制造的过程,针对大型零件的检具设计采用了简化方法,降低了成本,提高了检测效率,实现了设计目的。 相似文献
8.
9.
对于TAC结构也可称为整车匹配检具,此类检具本身属于特殊的标准车身构造检具,其中包含总装零件以及白车身。具体在设计整车匹配检具时,关键在于结合产品数模的比例,确保达到优化设计整车匹配检具的目标。因此可见,设计以及开发各种类型的整车匹配检具都要确保遵照现行的相关技术指标,避免检具设计过程的误差产生,从而保证了整车匹配检具符合现行的检具质量标准。 相似文献
10.
《现代制造技术与装备》2015,(3)
阐述了检具的基本构成及其检测原理,结合应用实例提出了汽车覆盖件检具设计开发的一般方案及各功能部件的设计方法和相关要求,为检具的设计开发提供了参考依据,对适应快速发展的汽车市场需求具有重要意义,同时对于一般夹具的设计也有一定的参考价值。 相似文献
11.
在机械制造厂中,夹具大致分为机床夹具、焊接夹具、热处理夹具、装配夹具等,运用最为广泛的是机床夹具。在以前的工厂生产中,所使用的基本上都是手动夹具,这一工具的效率并不高,且存在着质量不稳定的特点,被人为因素所影响的概率很大。而随着我国现代化工业技术的进步,工厂对设备的自动化要求越来越高,所以自动化液压夹具在当前的工厂中逐渐被大众接受,并且已经越来越向着自动化的方向发展。本文通过对液压夹具的定位原则进行了分析,且对后续的发展做出了简要的判断,本文针对液压夹具的设计原则和应用等进行研究。 相似文献
12.
13.
Automatic design of machining fixtures: Conceptual design 总被引:8,自引:0,他引:8
Yon-Chun Chou R. A. Srinivas Sujit Saraf 《The International Journal of Advanced Manufacturing Technology》1994,9(1):3-12
Fixtures are used in many manufacturing operations. Owing to the great variety of parts and manufacturing operations, parts may have different sets of fixturing requirements and call for different design strategies. Although there are numerous possibilities for fixture designs, a few basic configurations are clearly identifiable. Based on the belief that it would be more promising to develop one design strategy for each type of fixture than to attempt to develop a general strategy for all types of fixtures, a three-stage design process has been proposed for automatic design of fixtures: conceptual, configuration, and detail design. This paper focuses on the conceptual design stage. A methodology is presented by which the part shape, part features, and cutting force field are analysed to generate conceptual designs of fixtures. 相似文献
14.
15.
16.
针对车身焊装夹具的设计特点和规律,阐述了在车身焊装夹具设计过程中知识的表示方法和获取途径,总结了该设计领域的研究特点和发展方向,将面向对象的VisualC++技术应用到智能化设计系统的开发中,构建了一个用于焊装夹具加紧方案设计的智能化CAD系统,基于该系统完成了焊装夹具加紧方案的自动设计,并将方案设计结果作为案例存储于系统中,极大地方便了后期的开发和维护. 相似文献
17.
Dr. M. -C. Wu J. -Y. Yen 《The International Journal of Advanced Manufacturing Technology》1993,8(3):123-128
This paper presents a computer-aided approach to the design of modular fixtures by retrieving similar workpieces from an existing database. A database which stores previously-manufactured workpieces and their modular fixtures is assumed to be available. Each workpiece in the database is described by its skeleton and its boundary representation (BREP). The skeleton is a tree structure that describes the interior framework of a workpiece. Workpieces that have similar skeletons usually require similar fixturing configurations. For a new workpiece which requires a fixture to be designed, we first determine its skeleton and then retrieve existing workpieces with similar skeletons. The modular fixtures of these retrieved workpieces are displayed to assist engineers in designing new fixtures. 相似文献
18.
Prof. D. T. Pham M. J. Nategh A. de Sam Lazaro 《The International Journal of Advanced Manufacturing Technology》1989,4(1):26-45
The state of the art in the technology of jigs and fixtures is reviewed. Heuristic and analytical principles of jig and fixture
design are summarised. An interactive knowledge-based program for assisting designers of jigs and fixtures is described. The
program incorporates design principles in the form of explicity declared facts and rules as well as numerical procedures.
The declarative part of the program is implemented in an expert system shell with a powerful inference engine and comprehensive
explanation and trace facilities. Details of these are given, together with a simplified example of a design session using
the program. 相似文献
19.