英文文献-塑料注射模具设计与制造的自动尺寸标注.pdfVIP

Int J Adv Manuf Technol (2006) 28: 370–378 DOI 10.1007/s00170-004-2374-2 O R I G I N A L A R T I C L E C.L. Li · K.M. Yu · Y.H. Lee Automatic datum dimensioning for plastic injection mould design and manufacturing Received: 7 May 2004 / Accepted: 10 August 2004 / Published online: 20 April 2005 © Springer-Verlag London Limited 2005 Abstract Datum dimensioning (or ordinate dimensioning) tech- entire mould assembly. With the advance in Internet technology nique is very popular in plastic injection mould drawings where and the recent development of Internet-enabled CAD, the de- the location dimensions of a large number of hole features must sign information of the injection mould can be communicated be specified in the drawings of the mould plates. Although com- electronically between the product engineer (who designs the mercial CAD/CAM systems provide semi-automatic tools to as- plastic part) and the tooling engineer (who designs the injection sist the designer in the dimensioning process, it is still a very mould), even though they may be located in different geographic tedious process, as the user has to specify the location of each di- regions of the world. While flow of design information between mension tag. This paper reports a completely automatic method product design and tooling design are communicated effectively where optimal placements of the dimension tags can be deter- through an electronic means, the communication of manufac- mined. The method employs dynamic programming technique to turing information to the shop floor is done by both electronic optimize the dimension process with respect to several criteria and traditional techniques. Computer Numerical Control (CNC) that can be selected by the user. The method has been imple- machining tool