摘  要

 此设计主要是对典型零件进行图形绘制、工艺设计和程序的编制及加工，通过对平面槽型凸轮的外形尺寸分析，应用CAD以及Pro/E软件绘制出二维和三维的图形并进行标注说明，注明图纸的公差要求、技术要求等。

    接着对平面槽型凸轮的零件图进行工艺分析，确定加工方法、路线等，并设计好各切削参数自动编出加工刀路轨迹。然后跟据图纸的工艺分析，选择合理的工艺路线及加工方法，根据零件形状、余量等选择适用形状大小的各种铣刀， 最后将Pro/E软件绘制的三维图利用数控加工仿真软加工件Mastercam9.0进行仿真模拟加工，生产刀具轨迹；使用后置处理程序选取相应的配置文件，将刀具轨迹转换为数控机床可以识别的NC程序，为更加高速，快捷的造型，生产提供了一种切实可行的办法。生成的NC程序可以利用DNC方式传输给数控机床进行三维加工。

关键词：平面槽型凸轮；加工工艺；数控加工

Planar slotted CAM parts processing design and NC programming

Abstract

    This design is mainly focuses on the preparation, the process of graphics rendering, design and the typical parts, through the analysis of shape and size of plane cam groove by using CAD and Pro/E software to draw graphics, 2D and 3D to label instructions and annotate the drawings tolerance requirements and technical requirements.

     Then it comes to the analysis of plane groove cam parts , the determination of the method of producing,and routes for process as well as the design the cutting parameters, which will create tool’s path automatically.After the previous process, choosing suitable allowance cutter shape and size is determined by the analysis of pictures. According to the shape of parts, the NC machining simulation using Pro/E software rendering 3D map of the soft parts of Mastercam9.0 for simulation of processing and production tool path. Selecting the configuration file accordingly is determined by the use of post processing program, the tool path for CNC machine tool transformation can be identified by the NC program, for more rapid, efficient design,which provide a feasible solution.The generated NC program can be transmitted to the CNC machine tools for machining by using the DNC.

Key words:Planar slot type cam；machining process；NC machining