TY - GEN
T1 - Conceptional setup design oriented locating error analysis for workpiece-fixture system
AU - Zhang, Faping
AU - Tang, Shuiyuan
AU - Yanyan,
AU - Chen, Aiqing
PY - 2010
Y1 - 2010
N2 - Inaccuracies of machining fixture's location cause a deviation of workpiece from its nominal geometry position. To achieve an acceptable machining part, this deviation must be controlled within the allowed limits specified by corresponding geometric tolerances. In this paper the relationship between the locating inaccuracies and the machining errors is studied. By geometry analysis, a mathematical model to predict the deviation of workpiece at a feature resulted by a set of known location deviation of locators is formulated. Further, optimum method is employed to achieve allowed locator error bounds according to that the required workpiece geometry tolerance at a feature is not violated. A simplified method is put forward to facilitate the solution of the optimum process. The method can be used to verify the fixture design and error analysis for multiple stations machining process. Finally, a case study has been used to support and validate the proposed model.
AB - Inaccuracies of machining fixture's location cause a deviation of workpiece from its nominal geometry position. To achieve an acceptable machining part, this deviation must be controlled within the allowed limits specified by corresponding geometric tolerances. In this paper the relationship between the locating inaccuracies and the machining errors is studied. By geometry analysis, a mathematical model to predict the deviation of workpiece at a feature resulted by a set of known location deviation of locators is formulated. Further, optimum method is employed to achieve allowed locator error bounds according to that the required workpiece geometry tolerance at a feature is not violated. A simplified method is put forward to facilitate the solution of the optimum process. The method can be used to verify the fixture design and error analysis for multiple stations machining process. Finally, a case study has been used to support and validate the proposed model.
KW - Conceptional setup design
KW - Error modeling
KW - Locating error
KW - Workpiece-fixture system
UR - http://www.scopus.com/inward/record.url?scp=77955812806&partnerID=8YFLogxK
U2 - 10.1109/ICICTA.2010.640
DO - 10.1109/ICICTA.2010.640
M3 - Conference contribution
AN - SCOPUS:77955812806
SN - 9780769540771
T3 - 2010 International Conference on Intelligent Computation Technology and Automation, ICICTA 2010
SP - 1015
EP - 1018
BT - 2010 International Conference on Intelligent Computation Technology and Automation, ICICTA 2010
T2 - 2010 International Conference on Intelligent Computation Technology and Automation, ICICTA 2010
Y2 - 11 May 2010 through 12 May 2010
ER -