Study on smint NC processor which includes milling process model for process prediction to buill the next generation of machine tools

smint NC 处理器的研究，其中包括用于过程预测的铣削过程模型，以构建下一代机床

基本信息

批准号：
17360063
负责人：
SHIRASE Keiichi
金额：
$ 9.43万
依托单位：
Kobe University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360063/
关键词：
Milling process model Voxel model Milling simulation Intelligent machine tool Reactive scheduling NC processor CAD CAM CAE

项目摘要

1. Machining shape simulator based on Voxel modelIn order to predict the change of material shape during machining operation, a machining shape simulator based on the Voxel model was developed. By introducing the Oct-tree structure into the Voxel model to represent a material shape precisely, the total amount of the Voxel (memory usage of the computer) can be reduced to realize a practical machining shape simulation. Moreover. the machining shape simulation of five-axis controlled machining can be achieved successfully utilizing the feature of the Voxel model.2. Cutting force simulator of endmilling operationIn order to predict the change of cutting force during machining operation, a cutting force simulator for endmilling operation was developed. It was verified that the predicted cutting forces in several cutting conditions have good agreement with the measured one for both the square end mill and the ball end mill. In addition, a virtual machining simulation, which shows the change … More of material shape and cutting force during milling operation. was achieved.3. Process planning support system for 5-axis machine toolIn order to utilize the performance of 5-axis machine tools effectively a process planning support system, which assists to determine the suitable tool posture for 5-axis machine tools, was developed. The process planning support system is designed to perform the collision check and the tool path generation quickly by applying Voxel model expression of the material and the tooling shapes. It is verified that the suitable tool posture for 5-axis machine tools can be determined effectively.4. Reactive scheduling utilizing for autonomous machine toolIn order to achieve flexible operation of the autonomous machine tool with a smart NC processor, a reactive scheduling system which is able to change the machining operation schedule dynamically according to the observed situation of machine tools was developed. It was confirmed that the machining operation schedule was flexibly updated to the change and the difference of operation times by the computational experiment. Less

1。基于体素模型序列的加工形状模拟器，以预测加工操作过程中材料形状的变化，开发了基于体素模型的加工形状模拟器。通过将OCT-树结构引入体素模型以准确表示材料形状，可以减少体素（计算机的存储器使用情况）的总量以实现实用的加工形状模拟。而且。可以成功利用Voxel模型的功能成功实现五轴控制加工的加工形状模拟。2。终端操作的切割力模拟器，以预测加工操作期间切割力的变化，开发了用于末端填充操作的切割力模拟器。经过证实，在几个切割条件下预测的切割力与平方端磨机和球端磨坊的测量值都很好地吻合。此外，虚拟加工模拟显示了变化……在铣削操作过程中，更多的材料形状和切割力。实现了3。 5轴机床工具的流程计划支持系统有效地利用5轴机床的性能，有效地开发了一个过程计划支持系统，该系统有助于确定5轴机床工具的合适工具姿势。过程计划支持系统旨在通过应用材料和工具形状的体素模型表达来快速执行碰撞检查和工具路径生成。可以有效地确定5轴机床的合适工具姿势。4。使用自动机器工具订单的反应性调度使用SMART NC处理器实现自动机器的灵活操作，Smart NC处理器是一个反应性调度系统，能够根据观察到的机床的情况动态更改机器操作时间表。已经证实，通过计算实验，加工操作时间表灵活地更新了操作时间的变化和操作时间差。较少的