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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part B. Journal of engineering manufacture >Automated process planning system: A new method for setup planning and a mathematical model for fixture design
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Automated process planning system: A new method for setup planning and a mathematical model for fixture design

机译：自动化过程计划系统：用于安装计划的新方法和用于夹具设计的数学模型

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摘要

Setup planning and fixture design are two main tasks for the integration of design and manufacturing process. Setup planning identifies which features must be machined in each setup and determines locating datum for each setup, whereas fixture planning determines precise locating and rigid clamping of workpieces according to a part design and process requirements. So, a close interaction exists between setup planning and fixture design. This research deals with the problems of setup and fixture planning for the machining of prismatic parts. In the first step, a new heuristic method is presented to plan the setups with accurate respect to datum faces in design and manufacturing. Two concepts, namely, "inferiority face" and "control face," have been used for this purpose. In the next step, a mathematical model is used to define the primary, secondary and tertiary fixture planes with respect to locators' position. This model determines relationship between misplacement of locators and dimensional and geometrical specifications of workpiece. The main purpose of developing the model is to determine the effect of locator height error on hole position tolerance. The capability of this model is verified by simulation in "motion study" module in SolidWorks software. This approach is very useful in the hole-making process. The system is developed in Visual Basic on a SolidWorks platform. The effectiveness of the system is verified by an industrial component.
机译：安装计划和夹具设计是设计和制造过程集成的两个主要任务。设置计划确定了每个设置中必须加工的特征，并确定了每个设置的定位基准，而夹具计划则根据零件设计和工艺要求确定了工件的精确定位和刚性夹紧。因此，安装计划和夹具设计之间存在密切的相互作用。这项研究解决了棱柱形零件加工中的安装和夹具规划问题。第一步，提出一种新的启发式方法，以在设计和制造过程中相对于基准面准确地计划设置。为此，使用了两个概念，即“自卑的面孔”和“控制面孔”。在下一步中，将使用数学模型来定义相对于定位器位置的主要，次要和三次夹具平面。该模型确定定位器的错位与工件的尺寸和几何规格之间的关系。开发模型的主要目的是确定定位器高度误差对孔位置公差的影响。该模型的功能已通过SolidWorks软件中“运动研究”模块中的仿真进行了验证。这种方法在制孔过程中非常有用。该系统是在SolidWorks平台上的Visual Basic中开发的。该系统的有效性由工业组件验证。

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