CAJ | 학술논문

研究夹具定位误差和工件加工精度之间的关系. 利用几何关系建立定位误差和工件空间方位变异之间的模型,实现已知定位误差的加工工件形位误差计算. 提出利用优化方法在满足工件形位公差条件下的定位误差分配算法,并讨论了该优化模型的简化计算. 实现了定位误差的合成与分配. 该方法可用于夹具制造设计精度的校验和零件的工艺验证. 零件实例验证了该分析方法的可行性.
연구협구정위오차화공건가공정도지간적관계. 이용궤하관계건립정위오차화공건공간방위변이지간적모형,실현이지정위오차적가공공건형위오차계산. 제출이용우화방법재만족공건형위공차조건하적정위오차분배산법,병토론료해우화모형적간화계산. 실현료정위오차적합성여분배. 해방법가용우협구제조설계정도적교험화령건적공예험증. 령건실례험증료해분석방법적가행성.
Relationship between the locating errors and machining errors is studied. By means of geometical analysis, the mathematical model to calculate the deviation of workpiece caused by the location deviation of locators is formulated. So that geometical tolerance can be calculated under the given location errors. Further, optimum method is employed to allocate the locator errors according to the required workpiece geometry tolerance. A simplified method is put forward to facilitate the solution of the optimum process. The method can be used to verify the fixture design. Finally, a case study has been used to support and validate the proposed model.