WAM336数控磨床电器系统技术改造
| WAM336数控周边磨床主要用于磨削各类具有直线面和圆弧面的硬质合金可转位铣刀片。根据改造后的机床特点和加工要求，我们编制了磨削直线面和圆弧面的工艺宏程序。 磨削直线面的宏程序 磨削直线面的宏程序(9011)如下： %LINE，MX， (SUB 9011) (WRITE G54) (WRITE G90 G0 XP21) (WRITE G90 G0 CP0) (WRITE G90 G0 BP11) (P25 = P1 + 1) (WRITE G90 G0 XP25) (P15 = P1 + ORGX54*(1-1 / COS(P11))) (WRITE G90 G1 XP15 FP20) (WRITE G4 KP23) (WRITE G90 G0 XP21) (WRITE G91 G0 CP2) (WIRTE G90 G0 BP12) (P24 = P3 + 1) (WRITE G90 G0 XP24) (P16 = P3 + ORGX54*(1-1 / COS(P12))) (WRITE G90 G1 XP16 FP20) (WRITE G4 KP23) (WRITE G90 G0XP21) (WRITE G91 G0 CP4) (WRITE G90 G0 BP13) (P22 = P5 + 1) (WRITE G90 G0 XP22) (P17 = P5 + ORGX*(1-1 / COS(P13))) (WRITE G90 G1 XP5 FP20) (WRITE G4 KP23) (WRITE G90 G0 XP21) (WRITE G91 G0 CP6) (WRITE G90 G0 BP14) (P19 = P7 + 1) (WRITE G90 G0 XP19) (P17 = P7 + ORGX54*91-1 / COS(P14))) (WRITE G90 G1 XP17 FP20) (WRITE G4 KP23) (P0 = 0，P1 = 0，P2 = 0，P3 = 0，P4 = 0，P5 = 0，P6 = 0，P7 =0，P8 = 0，P9 = 0，P10 = 0，P11 = 0，P12 = 0，P13 = 0，P14 =0，P15 = 0，P16 = 0，P17 = 0，P18 = 0，P19 = 0，P20 = 0，P21= 0，P22 = 0，P23 = 0，P24 = 0，P25 = 0) (RET) 加工实例 现以磨削加工如图所示刀片为例，说明如何调用宏程序SUB9010、SUB9011 和建立演算子程序。 该刀片需要加工的尺寸包括二个直线面(14mm×7mm)和四个圆弧面(4-R2mm)。根据工艺要求，首先磨削直线面，再依次磨削圆弧面。刀片初始上料角度为0°。编制演算子程序如下： (OPEN P8000，D) (WRITE(SUB 8000)) (PCAL9011，P0 = 0，P1 = 3. 50，P2 = 90°，P3 = 7. 00，P4 =90，P5 = 3. 50，P6 = 90°，P7 = 7. 00，P20 = 8，P21 = 12，P23= 100°) (PCALL9010，P0 = 270°，P1 = 5. 00，P2 = 1. 5，P3 = 2，P4 =90°，P7 = 0，P12 = 0.1，P20 = 100，P21 = 12°) (PCALL9010，P0 = 360，P1 = 1. 5，P2 = 5，P3 = 2，P4 = 90，P7 = 0，P12 = 0.1，P20 = 100，P21 = 12°) (PCALL 9010，P0 = 450°，P1 = 5.00，P2 = 1. 5，P3 = 2，P4 =90°，P7 = 0，P12 = 0.1，P20 = 100，P21 = 12°) (PCALL 9010，P0 = 540°，P1 = 1. 5，P2 = 5，P3 = 2，P4 =90°，P7 = 0，P12 = 0.1，P20 = 100，P21 = 12°) (WRITE(RET)) M30 将编制好的演算子程序在机床中运行，生成一个新的磨削子程序P8000。在实际加工中，将P8000连接到主程序中即可实现刀片的磨削。 呼叫一次SUB9011 宏程序可完成磨削四个直线面的加工程序编制。在实际应用中，可根据图纸和工艺要求，通过在演算子程序中连续呼叫SUB9011宏程序来完成磨削任意直线面的加工编程。为此，首先需要建立一个演算子程序(即呼叫子程序)，然后在该程序中对参数进行赋值，即可完成加工程序的编制。需要赋值的参变量包括：初始上料角度P0，磨床第一边半径尺寸P1，磨削第二边外夹角P2，磨削第二边半径尺寸P3，磨削第三边夹角P4，磨削第三边半径尺寸P5，磨削第四边外夹角P6，磨削第四边半径尺寸P7，第一边到第四边的后角P11～P14，磨削速度P20，外接圆半径P21，空磨时间P23。 磨削圆弧面的宏程序 磨削圆弧面的宏程序(9010)如下： %CYCLE，MX， (SUB 9010) (WRITE M7) (WRITE G5) (WRITE G90 G1) (P24 = P0) (P25 = SQRT (P1*P1 + P2*P2)) (P23 = P7) (P19 = P23) N10(P20 = P3 - P25) (IF P20 GT 0 G0T0 N30) (P23 = - P7 - ACOS(P1 / P25)) (P19 = P23) N20(P22 = P25*COS(P23)+ P3) (WRITE F10) (WRITE XP22) (WRITE F100) (WRITE CP24) N25(P22 = P25*COS(P23)+ P3) (WRITE XP22 CP24) (P23 = P23 + P12) (P24 = P24 + P12) (IF P23 LE(P19 + P4)GOTO N25) (RET) N30(P23 = P7) (P19 = P23) (P22 = - P25*COS(P23 + P3) (WRITE F10) (WRITE XP22) (P18 = P24 + 90 + P7) (WRITE F100) (WRITE CP18) N35(P22 = - P25*COS(P23)+ P3) (WRITE XP22 CP18) |
