计算机集成制造系统
計算機集成製造繫統
계산궤집성제조계통
COMPUTER INTEGRATED MANUFACTURING SYSTEMS
2010年
2期
280-286
,共7页
夹具配置%薄板零件%装配偏差%线性关系%模型
夾具配置%薄闆零件%裝配偏差%線性關繫%模型
협구배치%박판령건%장배편차%선성관계%모형
fixture configuration%sheet metal parts%assembly variation%linear relationships%models
为提高当前柔性薄板零件装配偏差分析的效率,提出了一种考虑夹具配置的装配偏差分析模型.通过对柔性薄板的定位装配过程的研究,分析了零件偏差、夹具偏差和装配偏差在各个步骤中的变化过程,建立了"N-2-1"和"3-2-1"两种夹具定位规则下的装配前后偏差之间的线性关系;根据装配后夹具定位点的释放模式的不同,建立了过定位释放和完全释放两种模式下的装配偏差分析模型.最后,通过分析实例薄板的装配偏差,表明了该装配偏差分析模型的有效性.
為提高噹前柔性薄闆零件裝配偏差分析的效率,提齣瞭一種攷慮夾具配置的裝配偏差分析模型.通過對柔性薄闆的定位裝配過程的研究,分析瞭零件偏差、夾具偏差和裝配偏差在各箇步驟中的變化過程,建立瞭"N-2-1"和"3-2-1"兩種夾具定位規則下的裝配前後偏差之間的線性關繫;根據裝配後夾具定位點的釋放模式的不同,建立瞭過定位釋放和完全釋放兩種模式下的裝配偏差分析模型.最後,通過分析實例薄闆的裝配偏差,錶明瞭該裝配偏差分析模型的有效性.
위제고당전유성박판령건장배편차분석적효솔,제출료일충고필협구배치적장배편차분석모형.통과대유성박판적정위장배과정적연구,분석료령건편차、협구편차화장배편차재각개보취중적변화과정,건립료"N-2-1"화"3-2-1"량충협구정위규칙하적장배전후편차지간적선성관계;근거장배후협구정위점적석방모식적불동,건립료과정위석방화완전석방량충모식하적장배편차분석모형.최후,통과분석실례박판적장배편차,표명료해장배편차분석모형적유효성.
An assembly variation analysis model with fixture configurations was proposed to improve the current variation analysis efficiency of sheet metal parts.The variation change process of part,fixture and assembly were analyzed by studying the positioning and assembly process of sheet metal parts.Linear relationships among variations of parts,fixtures and assemblies were established with two locating principles of"N-2-1"and"3-2-1".Moreover, in accordance with the different release modes of the fixture positioning points after the assembly,the assembly variation analysis model was established in the two modes of over-constrained release and full release.Finally,a case of sheet metal assembly was used to illustrate the effectiveness of the assembly variation analysis model.
