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fix-half subassembly are shown in Fig. 7(b). This assembly is
designed by the IMOLD system. Each plate of the mould base
is automatically positioned in the assembly. The standard parts
such as the locating ring and ejector are added to the assembly
automatically, and the pockets for these standard parts are also
created automatically.
7. Conclusion
The proposed feature-based and object-oriented hierarchical
representation for injection mould assembly not only extends
the feature paradigm to the assembly design, but also encapsulates
operational functions and geometric constraints, such as
the degree of freedom, mating conditions, insertion and orientation
limits, etc. Because of the extension of the feature
paradigm to assembly design, the modifications, such as dimen-
sional changes of the assembled component can be made even
after the completion of the assembly process. The encapsulation
of assembly objects has the following two advantages: first,
because the mating conditions are encapsulated in the assembly
objects, automatic assembly design is easy to implement; secondly,
the encapsulated operational functions in the object
assembly automate the routine processes of assembly design,
such as pocketing and interference check. The proposed simplified
action analysis can substantially reduce the programming
effort needed for automatic checking for component interference
within a mould assembly.
Acknowledgement
The authors would like to thank the National University of
Singapore and National Science and Technology Board of
Singapore for supporting the IMOLDÒ [14] research project. 注射模具是包含产品生产部分和自动化装配的组件，本篇论文论述了注射成型模塑的两个关键的装配组件，也就是由计算机设计模拟出来，并且决定非生产部件在装配组件中的位置和取向。这种从本质特征和客观取向所设计的组件，论文网是为了表现出注射成型装配组件的。这种设计允许设计者忽略模塑制件的细节，直接描述制件重点的那一部分及其原因，因此它给设计者提供了一次设计装配的机会，一个系统的简单几何方法通常可以在相同的条件下推断出一个客观配件在装配组件中的位置。在这种粗略设计和系统简单的几何方法的基础上，模塑自动化装配组件被进一步研究