Development of CAM system installed in CNC controller to achieve flexible and dynamic machining operations

开发安装在 CNC 控制器中的 CAM 系统,实现灵活动态的加工操作

基本信息

  • 批准号:
    13650278
  • 负责人:
  • 金额:
    $ 2.18万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2002
  • 项目状态:
    已结题

项目摘要

For the target CAM system installed in CNC controller, (i) The operation planning module to adapt operation sequence and cutting tools, (ii) The simulation module to recognize machined shape during machining operation, and (iii) The real time tool path generation module to achieve flexible and dynamic machining operations, are developed in this study.(i) The operation planning module to adapt operation sequence and cutting toolsThe total removal volume is detected from 3D CAD models of a raw material shape and a final machined shape. The total removal volume is divided into several machining features in three ways for different geometrical consideration. The operation sequence is derived from the geometrical relations among the machining features. The cutting tool is selected according to the machining feature detected. The cutting conditions are determined by referring the past cutting case data.(ii) The simulation module to recognize machined shape during machining operationA machine … More d shape during machining operation can be detected by successive Boolean subtractions between 3D solid models of a workpice and a tool swept volume. The tool swept volume equals the space occupied by the cutting tool in motion. In case of cutting trouble such as tool breakage, the machined shape during machining operation is available to use as a raw material shape for a new operation planning.(iii) The real time tool path generation module to realize flexible and dynamic machining operationTool paths can be generated in real time by the digital copy milling system which is developed for this module. In the digital copy milling system, a stylus and a master model are defined as geometrical surface models of 3D CAD, the stylus motion corresponding to the tool motion is generated based on copy milling principle. The tool motion can be changed dynamically during machining operation without any NC program.NC programless milling of sculptured surface has been achieved by the CAM system which consists of those three modules. Based on a 3D CAD model of machined shape, suitable tool paths and cutting conditions can be determined without any NC program to achieve flexible and dynamic machining operation. Less
针对安装在数控控制器上的目标凸轮系统,开发了加工计划模块,以适应加工顺序和刀具,仿真模块,以识别加工过程中的加工形状,实时刀路生成模块,以实现灵活动态的加工操作。(i)操作计划模块,以适应操作顺序和刀具。从原材料形状和最终加工形状的3D CAD模型中检测总去除量。根据不同的几何考虑,以三种方式将总去除量划分为几个加工特征。根据加工特征之间的几何关系推导出加工顺序。根据检测到的加工特征选择刀具。切削条件是通过参考过去的切削案例数据来确定的。(ii)加工过程中被加工形状识别的仿真模块。通过工件三维实体模型与刀具扫描体积之间的连续布尔减法,可以检测加工过程中更多的形状。刀具扫掠体积等于刀具在运动中所占的空间。当发生刀具断裂等切削故障时,加工过程中的加工形状可作为新的加工计划的原材料形状。(三)实时刀路生成模块,实现灵活、动态的加工操作。针对该模块开发的数字仿形铣削系统可实时生成刀路。在数字仿形铣削系统中,将手写笔和主模型定义为三维CAD的几何曲面模型,根据仿形铣削原理生成与刀具运动相对应的手写笔运动。刀具运动在加工过程中可以动态改变,无需任何数控程序。由这三个模块组成的凸轮系统实现了对已成形曲面的数控无程序铣削。基于被加工形状的三维CAD模型,无需任何数控程序即可确定合适的刀具路径和切削条件,实现灵活动态的加工操作。少

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

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SHIRASE Keiichi其他文献

Dynamic model of muscle fatigue and recovery considering the roles of slow-twitch and fast-twitch muscles (Validation with a pulling motion)
考虑慢肌和快肌作用的肌肉疲劳和恢复的动态模型(通过拉动进行验证)
  • DOI:
    10.1299/mej.18-00498
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0.5
  • 作者:
    MIURA Hayato;NISHIDA Isamu;SHIRASE Keiichi
  • 通讯作者:
    SHIRASE Keiichi
Proposal of Sensor-Less Cutting Force Monitoring Method Based on Equivalent Cutting Force Prediction Using Real Time End Milling Simulator
基于实时立铣模拟器等效切削力预测的无传感器切削力监测方法的提出
Influence of contact between tool and workpiece onto vibration characteristics of machine tools (Evaluation method and influence of contact length of cutting edge)
刀具与工件接触对机床振动特性的影响(切削刃接触长度的评价方法及影响)
  • DOI:
    10.1299/transjsme.20-00185
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    HOKAZONO Taisuke;SATO Ryuta;NISHIDA Isamu;SHIRASE Keiichi
  • 通讯作者:
    SHIRASE Keiichi

SHIRASE Keiichi的其他文献

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{{ truncateString('SHIRASE Keiichi', 18)}}的其他基金

Development of Digital Human Models which Perform Muscle Forces Estimationand Muscle Fatigue Evaluation for Work Environment Design
开发用于工作环境设计的肌肉力量估计和肌肉疲劳评估的数字人体模型
  • 批准号:
    23656107
  • 财政年份:
    2011
  • 资助金额:
    $ 2.18万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
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
  • 批准号:
    17360063
  • 财政年份:
    2005
  • 资助金额:
    $ 2.18万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of Advanced Machine Tool to Realize Autonomous Machining Operation Unconstrained by NC program
开发先进机床实现不受NC程序约束的自主加工操作
  • 批准号:
    13555035
  • 财政年份:
    2001
  • 资助金额:
    $ 2.18万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of autonomous NC machine tool to realize NC programless machining operation for advanced manufacturing systems
开发自主数控机床,实现先进制造系统的数控无程序加工操作
  • 批准号:
    11650129
  • 财政年份:
    1999
  • 资助金额:
    $ 2.18万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

相似海外基金

Development of Advanced Machine Tool to Realize Autonomous Machining Operation Unconstrained by NC program
开发先进机床实现不受NC程序约束的自主加工操作
  • 批准号:
    13555035
  • 财政年份:
    2001
  • 资助金额:
    $ 2.18万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
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