英译汉 机械A new machining-dimension-based locating scheme is devel- oped as a systematic analysis and design procedure.Firstly,based on the kinematics of the rigid body motion,machining-dimension requirements are related with the DOFs of the wo

英译汉 机械A new machining-dimension-based locating scheme is devel- oped as a systematic analysis and design procedure.Firstly,based on the kinematics of the rigid body motion,machining-dimension requirements are related with the DOFs of the wo
英译汉 机械
A new machining-dimension-based locating scheme is devel- oped as a systematic analysis and design procedure.Firstly,based on the kinematics of the rigid body motion,machining-dimension requirements are related with the DOFs of the workpiece to be constrained.Second,with known locator number and positions,the homogeneous linear system describing the constrained DOFs is formulated.Finally,based on the consistence analysis of both formulations,quantitative judgment criteria are concluded to cap- ture the relationship between the theoretical constrained DOFs and the practical constrained DOFs.The analysis is able to verify the locating correctness and to figure out the cause of locating incorrectness.The novel approach is useful not only to enrich the fixture design theory from experimental description to quantitative formulation but also to provide a practical tool for the develop- ment of computer aided fixture design CAFD system.
machining-dimension-based locating scheme 基于机械加工尺寸的定位方案
DOFs：自由度 CAFD：计算机辅助夹具设计 locating incorrectness：不合理定位

英译汉 机械A new machining-dimension-based locating scheme is devel- oped as a systematic analysis and design procedure.Firstly,based on the kinematics of the rigid body motion,machining-dimension requirements are related with the DOFs of the wo
一种新型的基于机械加工尺寸的定位方案以一种系统性的分析和设计程序方式来发展.首先,以刚体运动的运动学为基础,机械加工尺寸的要求与工作件的自由度联系起来受到约制.第二,由于定位仪数量和位置均已知,便制订出描述受约制自由度的同类线性系统.最后,基于对两种公式化所做的一贯分析,数量上的判断标准被总结出来获取理论上的受约制自由度和实践上的受约制自由度.此分析可以证实定位合理,并指出不合理定位的原因.这种新奇的方法不仅有利于丰富从实验性描述到数量格式化的固定装置设计理论,而且有利于为计算机辅助固定装置设计CAFD系统的发展提供实践工具.