Research on reasoning of machinery based on both design and assembly information and its application

本研究的目的是建立一个从设计信息和装配信息中分析/可视化人工对象行为的框架，并创建一个虚拟现实系统，以阐明机械设备的设计变更和装配过程的修改对设备的影响。随着CAD的繁荣，人工物体的设计得到了方便，但装配、机械推理等方面却没有取得进展。以零件公差为基础的设计检验成为可能，但零件形状和装配程序对机械的影响却无法迅速得知。由于通用机械检测程序的定制难度较大，且对待检机械的描述比较复杂，这就导致了对机械本身的描述和由于零件修改而引起的机械改造中出现了很多错误。这些事实使得进行正确的机械检查变得困难。如果在零件设计中出现了更多的错误，那么零件形状和机械描述的修改都是必要的，在设计的初始阶段几乎不可能使用机械检查。在虚拟空间中组装零件后，应该建立一个简单的方法来识别设施。因此，通过使用数据手套自由地组装机械部件，可以使装配产品以与实际环境相同的方式工作。但是图形并没有提供足够的设施来帮助新手在虚拟环境中组装机械部件。使用辅助线或力反馈装置的轴对准被发现是有用的，使装配操作容易。即使以这种方式确定了装配程序，也很难实现装配的完全自动化，因此有必要对装配过程进行人工介绍。在产品损坏或故障的情况下，维修是必要的。如果一个专家从事这些工作，将会导致产品价格的显著上涨。因此，在这些工作中引入非专业人士是必不可少的。为此需要一个指示装配I修理方法的系统，但如果利用上述系统，则实现该系统并不困难。我们已经证实，引入口语以确保自由交流和允许错误的装配操作有助于包括儿童在内的新手了解如何组装机械部件和组装对象的状态。少

The purpose of this research is to make the framework that analyzes / visualizes the behavior of an artificial object from the design information arid assembly information, and to create a virtual reality system clarifying the affect that the design change and modification of assembly procedure give to facility of machinery. The design of an artificial object is facilitated with the prosperity of CAD, but assembly, machinery reasoning do not make progress. Design inspection on the basis of parts tolerance becomes possible but the affect that part shapes and an assembly procedure give to the machinery cannot be known quickly. As customization of the general purpose machinery inspection program is difficult, and because a description of the machinery to be inspected is complicated, this causes many errors in the description of the machinery itself and machinery alteration caused with the parts modification. These facts makes it difficult to practice a correct machinery inspection. If the … More re are errors in the part design, both of the part shape and the modification of the machinery description become necessary, It is almost impossible to use machinery inspection at the initial stage of the design. A simple approach to identify the facility should be established after having made up parts in a virtual space. So a support system to has an assembly product work in the same way as in the real environment is made by assembling mechanical parts using a data glove freely. But graphics does not offer enough facility to help novices assemble mechanical parts in virtual environment.. An axis alignment using auxiliary lines or a force feedback device are found to be useful to make assembly operation easy. Even if an assembly procedure is decided in this way, complete automation of assembly is difficult, and human introduction to assembly process becomes necessary. And repair becomes necessary in the case that a product was damaged or broke down. If an expert were engaged in such tasks, a remarkable rise of product price would be caused. So introduction of non-experts into those works becomes indispensable. A system instructing assembly I repair method is necessary for that purpose, but it is not difficult to implement the system if the above mentioned system is exploited. We have confirmed that introduction of spoken language to secure a free communication and permission of erroneous assembly operation help novices including children understand how to assemble mechanical parts and the state of an assembled object. Less