数控机床编程：第5讲-系统编程基础-G92螺纹循环切削加工指令.ppt

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1、第5讲数控编程基础知识G92指令数控机床加工技术1、程序段格式：G92X____Z____I____F____；X、Z－－螺纹终点坐标值；I－－锥螺纹起点和终点的半径差，一般按延伸后的值进行考虑；I的正负判别如下：锥面起点坐标大于终点坐标时取正，反之取负；圆柱螺纹直径相同，所以I为0，可省略。F－－螺纹的导程；第5讲　数控编程常用指令－G92一、螺纹切削循环指令G92例题4－2-A：第5讲　数控编程常用指令－G92一、螺纹切削循环指令G92普通螺纹M24×1.5,δ1＝3mm，δ2＝1mm。第5讲　数控编程常用指令－G92一、螺纹切削循环指令G92①计算螺纹底径d

2、´=d-2×0.62P=(24-2×0.62×1.5)mm=22.14mm②确定背吃刀量1mm0.5mm0.3mm0.06mm③加工程序第5讲　数控编程常用指令－G92一、螺纹切削循环指令G92③加工程序O1004N05M03S300;N10T0202;N15G00X30.0Z3.0;N20G92X23.0Z-23.0F1.5;N25X22.5;N45X22.2;N50X22.14;N55G00X100.0;N60Z100.0;N65…例题4－2-B：第5讲　数控编程常用指令－G92一、螺纹切削循环指令G92圆锥螺纹大端大径φ55,圆锥螺纹小端大径φ35,P＝2m

3、m；δ1＝3mm；δ2＝2mm第5讲　数控编程常用指令－G92一、螺纹切削循环指令G92①计算螺纹小端底径d´1=d1-2×0.62P=(35-2×0.62×2)mm=32.52mm②计算螺纹大端底径d´2=d2-2×0.62P=(55-2×0.62×2)mm=52.52mm③确定背吃刀量1mm0.7mm0.5mm0.2mm0.08mm④加工程序第5讲　数控编程常用指令－G92一、螺纹切削循环指令G92④加工程序O1005N05M03S300;N10T0202;N15G00X70.0Z3.0;N20G92X54.0Z-42.0I-10.0F2.0;N25X53.3

4、;N30X52.8;N35X52.6;N40X52.52;N45G00X100.0Z100.0;N50…第5讲　数控编程常用指令－G92课后习题:G32指令练习第5讲　数控编程常用指令－G92课后习题:G32指令与G92指令对比O1004N05M03S300;N10T0202;N15G00X30.0Z3.0;N20X23.0;N25G32Z-23.0F1.5;N30G00X30.0;N35Z3.0;N40X22.5;N45G32Z-23.0F1.5;N50G00X30.0;N55Z3.0;N60X22.2;N65G32Z-23.0F1.5;N70G00X30.0;

5、N75Z3.0;N80X22.14;N85G32Z-23.0F1.5;N90G00X100.0;N95Z100.0;N100M05;N105M30;%O1004N05M03S300;N10T0202;N15G00X30.0Z3.0;N20G92X23.0Z-23.0F1.5;N25X22.5;N45X22.2;N50X22.14;N55G00X100.0;N60Z100.0;N65…