Tool Path Planning of Tilted Plane Features and Motion Simulation for Five-Axis Machining

• Main Authors: Yueh-Hsun Tsai, 蔡岳勳
• Other Authors: Chen-Hua She
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/6vd622

碩士 === 國立虎尾科技大學 === 創意工程與精密科技研究所 === 98 === The design of free-form surface products becomes more and more complex. In traditional three-axis machine tool machining, errors due to repetitive positioning and the costs of fixture jig design and manufacturing must be taken into consideration. As multi-axis machining provides two more rotational degrees of freedom than three-axis machine tool, the former can solve the above problem, and thus, has become the trend of precision cutting. This study aimed to propose the tilted working plane feature for five-axis machining, and develop a process planning system for tilted plane feature. As multi-axis machining parts often have holes and grooves on the tilted plane, this study developed the module for machining tilted working plane feature, which provides common geometric features, allowing user to compile machining feature and sequence on tilted plane quickly through parent-child relation in a tree diagram, and finish tool path planning. Using postprocessor module developed in this paper, the tool path is transformed into NC program required for machining. In addition, this study developed virtual machine tool simulation module, with additional functions of cutting tool and machine collision detection. This module adopts two-stage detection, where the first stage uses only cube to make rough collision detection, the second stage uses geometric elements (cube, cylinder, sphere, cone, etc.) to carry out fine collision detection. This module can also detect STL triangular mesh entity file built on simple geometric patterns, so that users can simulate and verify tool path quickly through this functional module. This study employed the solid cutting simulation software, VERICUT, to verify the feasibility and correctness of the postprocessor, tilted plane feature path and virtual machine tool module developed in this study. Keywords：Feature Tree, Virtual Machine Tool, Tilted Plane Features, Collision Detection.