《数控加工工艺与编程》课程设计零件的型腔铣及钻孔数控加工工艺与编程设计

《《数控加工工艺与编程》课程设计零件的型腔铣及钻孔数控加工工艺与编程设计》由会员分享，可在线阅读，更多相关《《数控加工工艺与编程》课程设计零件的型腔铣及钻孔数控加工工艺与编程设计（32页珍藏版）》请在装配图网上搜索。

1、 《数控加工工艺与编程》 课程设计说明书 学 院： 航空制造工程学院 专 业： 机械设计制造及其自动化 课程名称： 《数控加工工艺与编程》课程设计 学 生 姓 名： 学 号： 设计题目： 零件的型腔铣及钻孔数控加工工艺与编程设计 起 迄 日 期: 2015年11月17日~11月28日 指 导 教 师: 上交资料要求： 1、电子文档：零件的模型与工程图文档、 NC文件、设计说明书word稿等 2、设计说明书纸质打印稿等（与电子档相同） 一、设计任务 二、工艺分析 零件

2、铣削工艺分析如上图所示，零件材料的处理为：HT200，下面对该零件进行数控铣削工艺分析。 1. 零件图的完整性和正确性分析:零件图的表达清楚，能够直接反应各个地方的要求，符合标准。 2. 零件技术分析：零件图的尺寸精度、位置精度、形状精度、表面粗糙度和热处理，在保证零件合格和性能的前提下要经济合理。尺寸偏差为0.01，表面粗糙度均为6.3um，热处理采用正火处理。 3. 尺寸标注方法分析：为了零件图上的尺寸能够在加工精度保证使用性能的前提下，应集中标注或者用同一基准来标注，这样有利于设计基准、编制的程序和工艺基准的原点统一。 三、毛坯的选择 零件的力学性能分析：若力学性能要求高，则选

3、锻件。若不高，选铸件。因为零件材料是HT200，指的是最低抗拉强度为200MPa的灰铸铁。1.承受较大应力的零件（弯曲应力<29.40MPa） 2.摩擦面间的单位面积压力>0.49MPa（大于10t在磨损下工作的大型铸件压力>1.47MPa） 3.要求一定的气密性或耐弱腐蚀性介质 所以选铸件。 四、工艺过程设计 工序号 工序内容 刀具号mm 主轴转速（r/min） 进给速度（mm/min） 背吃刀量 mm 程序编号 1 零件 型腔铣 D10R1 1200 250 3 O0001 2 零件钻孔 Z8 1000 200 0.5 O0002

4、 五．型腔铣加工 1． 打开模型文件并进入加工环境 步骤1.在F盘ugwenjian文件夹中打开已经画好的-model4.prt模型文件 步骤2.进入加工环境。选择下拉菜单开始，点击加工命令，系统弹出“加工环境”的对话框，在“加工环境”的对话框的CAM会话配置列表中选择cam-general选项。在要创建的CAM设置列表框中选择mill contour选项。单击确定按钮，进入加工环境。 2． 创建几何体 任务一，创建机床坐标和安全平面 步骤1.进入几何视图。在工序导航的空白处右击，在系统弹出的快捷菜单中选择几何视图命令，在工序导航中双

5、击节点MCS-MILL，弹出“MILL Orient”对话框。 步骤2创建机床坐标系。这里采用系统默认的当前机床坐标系，如下图所示 步骤3.创建安全平面。 在安全设置选项中选择平面选项，平面参照及安全平面创建结果如下图所示，偏置距离为20. 任务二，创建部件几何体 单击如图所示指定部件，系统弹出“部件几何体”对话框。在“选择条”工具条中确认“类型过滤”设置为“实体”，在图形中选取整个零件为几何部件。单击确定完成。 任务三，创建毛胚几何体 如上图所示，单击指定毛胚命令框，得到如下图会话框，参数设置也如图所示。 单击确定，完成毛胚几何体创建。单击“铣销几何体

6、”对话框中的“确定”按钮，完成几何体的创建。 三，创建道具 道具的选取及参数如下图所示 单击确定，完成刀具的创建。 四，创建型腔铣操作 任务一，创建工序 选择菜单插入，点击工序命令，系统弹出“要创建工序”对话框。其参数选择如下图 单击确定，完成工序创建。 任务二显示刀具和几何体 显示刀具。在刀具区域单击“编辑|显示”按钮，各类参数数据显示如下图 显示几何体。在几何体区域中单击指定部件右侧的“显示”按钮，显示结果如下图。 任务三，设置刀具路径参数 参数设计结果如下图 任务四，切削参数设置

7、 切削参数设置如下图 任务五，设置非切削移动参数 结果如下图所示 任务六，设置进给率和速度 设置结果如下图 5，生成刀路径轨迹并仿真 六．标准钻孔加工 一，创建几何体 任务一，创建机床坐标系 任务二，创建部件几何体 任务三，创建钻加工几何体 步骤一，选择下拉菜单插入，单击几何体命令，系统弹出“创建几何体”对话框。 步骤二，在“创建几何体”的对话框几何体类型区域中单击“DRLL-GEOM”按钮，在几何体下拉列表中选择WORKPIECE选项，采用

8、系统默认名称，单击确定按钮。系统弹出“钻加工几何体”对话框。 步骤三， 指定孔 （1） 单击“钻加工几何体”对话框中“指定孔”右侧的按钮，系统弹出如下图所示“点到点几何体”对话框，单击选择按钮，系统弹出如下图所示“点位选择”对话框。 （2） 选择孔的边线圆弧为参照，单击确定按钮，返回到“点到点几何体”对话框。 （3） 单击“点到点几何体”对话框中的确定按钮，返回到“钻加工几何体”对话框。单击确定完成钻加工几何体的创建。 “点到点几何体”对话框 “点位选择”对话框 二，创建刀具 刀具的类型选择及参数设置如下图所示 三，创建工序 任务一，插入工

9、序 工序参数如下图所示 任务二，指定顶面 指定底面 任务三，设置循环控制参数 “指定参数”对话框 “Cvcle参数”对话框（单击Depth-模型深度按钮） “Cvcle深度”对话框（单击模型深度按钮） “安全高度设置类型”对话框（单击自由按钮） 任务四，设置一般参数如下图 任务五，避让设置 避让几何体对话框（单击Clearance plance-无按钮） “安全平面”对话框(单击指定按钮） 安全平面参数设置如下图所示 单击“安全平面”对话框中的

10、确定按钮，返回到“避让几何体”对话框，然后单击“避让几何体”对话框中的确定按钮，完成安全平面的设置，返回到“钻”对话框。 任务六，设置进给率和速度 单击“钻”对话框中的“进给率和速度”按钮，系统弹出“进给率和速度”对话框。 对话框中的参数设置如下图所示 单击确定按钮，完成设置 四，生成刀路径轨迹并仿真 生成刀路径轨迹如下图所示 2D仿真结果如下图所示 七．加工程序 TOOL PATH/CAVITY_MILL,TOOL,D10R1 TLDATA/MILL,10.0000,1.0000,75.0000,0.0000,0.0000 MS

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40、00,0.0000000,-1.0000000,12.4550,0.1500,0.2000,10.0000,1.0000 GOTO/5.8708,-10.9846,11.0000 CIRCLE/0.0000,0.0000,11.0000,0.0000000,0.0000000,-1.0000000,12.4550,0.1500,0.2000,10.0000,1.0000 GOTO/7.7064,9.7846,11.0000 CIRCLE/0.0000,0.0000,11.0000,0.0000000,0.0000000,-1.0000000,12.4550,0.1500,0.2000,

41、10.0000,1.0000 GOTO/0.0000,12.4550,11.0000 PAINT/COLOR,36 GOTO/0.0000,16.4550,11.0000 PAINT/COLOR,31 CIRCLE/0.0000,0.0000,11.0000,0.0000000,0.0000000,-1.0000000,16.4550,0.1500,0.2000,10.0000,1.0000 GOTO/-15.8808,4.3090,11.0000 CIRCLE/0.0000,0.0000,11.0000,0.0000000,0.0000000,-1.0000000,16.455

42、0,0.1500,0.2000,10.0000,1.0000 GOTO/-16.3742,-1.6290,11.0000 CIRCLE/0.0000,0.0000,11.0000,0.0000000,0.0000000,-1.0000000,16.4550,0.1500,0.2000,10.0000,1.0000 GOTO/7.7562,-14.5124,11.0000 CIRCLE/0.0000,0.0000,11.0000,0.0000000,0.0000000,-1.0000000,16.4550,0.1500,0.2000,10.0000,1.0000 GOTO/10.181

43、4,12.9270,11.0000 CIRCLE/0.0000,0.0000,11.0000,0.0000000,0.0000000,-1.0000000,16.4550,0.1500,0.2000,10.0000,1.0000 GOTO/0.0000,16.4550,11.0000 PAINT/COLOR,1 GOTO/0.0000,11.4550,11.0000 GOTO/0.0000,11.4550,14.0000 PAINT/COLOR,211 RAPID GOTO/0.0000,11.4550,60.0000 PAINT/SPEED,10 PAINT/TOOL,N

44、OMORE END-OF-PATH TOOL PATH/DRILLING,TOOL,Z8 TLDATA/DRILL,MILL,8.0000,0.0000,50.0000,118.0000,35.0000 MSYS/0.0000,0.0000,0.0000,1.0000000,0.0000000,0.0000000,0.0000000,1.0000000,0.0000000 $$ centerline data PAINT/PATH PAINT/SPEED,10 LOAD/TOOL,1,ADJUST,1 PAINT/COLOR,186 RAPID GOTO/0.0000

45、,40.0000,-10.0000,0.0000000,0.0000000,1.0000000 CYCLE/DRILL,RAPTO,3.0000,FEDTO,0.0000,RTRCTO,AUTO,MMPM,200.0000 PAINT/COLOR,31 GOTO/0.0000,40.0000,0.0000 GOTO/-40.0000,0.0000,0.0000 GOTO/40.0000,0.0000,0.0000 GOTO/0.0000,-40.0000,0.0000 CYCLE/OFF PAINT/COLOR,186 RAPID GOTO/0.0000,-40.0000,-10.0000 PAINT/SPEED,10 PAINT/TOOL,NOMORE END-OF-PATH