Design System of Machine Tool Structures Suitable for Autonomous Distributed Manufacturing Systems

本文研究了一种适用于小批量自主分布式制造系统的机床系统设计方法。研究结果如下：1.机床形状生成过程分析提出了一种描述机床形状生成过程的数学模型。该模型描述了刀具和工件之间的相对运动。基于该模型，分析了机床成形过程与产品曲面几何形状之间的关系.机床基本结构与成形过程的关系分析了成形过程与机床基本结构的关系，旨在建立设计机床基本结构所需的设计准则。特别是，机床的主要部件的形状和功能进行了澄清.加工精度分析系统的研制开发了一个分析系统，用于估计机床运动误差对被加工产品表面几何误差的影响。该系统可以根据成形过程的数学模型，由机床的运动误差计算出产品表面的几何误差.机床自治功能分析从自治分布式制造系统的观点出发，讨论了机床自治功能。提出了一种面向对象的模型来描述机床的分布式决策功能，并基于该模型开发了一个自治分布式调度系统。

The present research deals with a systematic design method for machine tools which are adaptable to autonomous distributed manufacturing system for very small batch productions. The results are summarized as follows ;1. Analysis of Shape Generation Process of Machine ToolsA mathematical model was proposed to represent the shape generation process of machine tools. The model proposed describes the relative motions between the tools and the workpieces. The relations between the shape generation process of machine tools and the geometries of the product surfaces were analyzed based on the model.2. Relations Between Shape Generation Process and Basic Structures of Machine ToolsThe relations between the shape generation process and the basic structures of machine tools were analyzed aiming at establishing a design criteria needed for designing suitable structures of machine tools. In particular, shapes and functions of main components of machine tools were clarified.3. Development of an Analysis System of Machining AccuracyAn analysis system was developed to estimate the effect of the kinematic errors of the machine tools on the geometric errors of the product surfaces to be machined. The system can calculate the geometric errors on the product surfaces from the kinematic errors of the machine tools based on the matheniatical model of the shape generation process.4. Analysis of Autonomous Functions of machine ToolsAutonomous functions of machiyie tools were discussed from the viewpoint of the autonomous distributed manufacturing systems. An object oriented model was proposed to represent the distributed decision making functions of machine tools, and an autonomous distributed scheduling system was developed based on the object oriented model proposed.