基于Mastercam对连杆进行NC加工编程.docx

1、基于Mastercam对连杆进行NC加工编程基于Mastercam对连杆进行NC加工编程在UG/CAM系统中可以直接采用2D图形进行刀具轨迹设计。采用2D图形进行刀轨设计具有使用方便、灵活的特点，适合在没有零件实体模型的情况下，读入二维工程图进行快速数控编程。本文将通过Mastercam软件对连杆进行设计。1 绘制连杆几何模型1.1选择“文件/新建”命令，建立新文件夹，在顶部工具栏中单击选择俯视构图按钮和俯视图按钮。1.2在第1图层画出连杆的2D平面图形如图1-1所示。1.3在第2图层绘制几何图形边界框，输入X和Y均为30。1.4在第3图层将图形中心移到系统坐标原点，便于加工时以图形中心对刀。

2、 图 1-1 连杆2D平面图形2 规划加工刀具路径2.1规划挖槽加工路径（1）单击“机床类型”，在子菜单中选择“铣床”/“默认”。（2）选择“属性”/“材料设置”，在弹出的对话框中输入如图2-1所示参数。图2-1 设置零件坯料尺寸（3）单击“刀具路径”/“挖槽”进行挖槽加工。（4）选择“串联”命令，选择如图2-2所示圆弧处。图2-2 选择挖槽区域（5）选择“确定”命令执行。（6）系统弹出如图2-3所示挖槽加工对话框，在“刀具”下单击“选择刀具库中刀具”，系统弹出如图2-4所示刀具库对话框中，选择一把10的平铣刀，单击确定。图2-3 挖槽加工对话框图2-4 加工刀具选择（7）在选择的10平铣刀图

3、标上双击，系统弹出如图2-5所示刀具参数设定对话框，选择“参数”选项卡，输入如图2-6所示参数，单击确定。图2-5 刀具参数设定对话框图2-6 设置“参数”选项卡（8）选择图2-3中的“共同参数”选项，在出现的图中输入如图2-7所示参数。图2-7 设置参数（9）在“切削参数”选项下，切削方式选择“等距环切”，如图2-8所示。单击确定。图2-8 设置切削方式（10）在图2-9中选择，在弹出的对话框中单击，则会出现模拟路径如图2-10所示。图2-9 验证路径图2-10 模拟挖槽路径2.2 规划钻孔加工刀具路径（1）单击“刀具路径”/“钻孔”进行钻孔加工。（2）手动选择圆心为钻孔中心点。（3）选择一

4、把50的钻头，钻孔深度设置为-45。（4）选择，在弹出的对话框中单击，则会出现模拟路径如图2-11所示。图2-11 模拟钻孔路径2.3规划外形加工刀具路径（1）单击“刀具路径”/“外形铣削”，进行外形加工。（2）在“刀具”下单击“选择刀具库中刀具”，选择一把20的平铣刀，单击确定。（3）设置刀具、外形加工中的参数后，单击确定。（4）选择，在弹出的对话框中单击，则会出现模拟路径如图2-12所示。图2-12 模拟外形加工路径2.4生成加工NC代码利用mastercam系统的后处理功能，自动生成加工连杆几何图形所需要的NC代码。（1）单击，弹出的如图2-13所示对话框，单击确定。图2-13生成NC代

5、码（2）NC代码如下%O0000(T4)(DATE=DD-MM-YY - 22-11-13 TIME=HH:MM - 11:21)(MCX FILE - C:USERSUDESKTOPT3.MCX)(NC FILE - C:USERSUDESKTOPT4.NC)(MATERIAL - ALUMINUM MM - 2024)( T219 | 10. FLAT ENDMILL | H219 )( T60 | 50. DRILL | H60 )( T229 | 20. FLAT ENDMILL | H3 )N100 G21N102 G0 G17 G40 G49 G80 G90N104 T219 M6

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