2 WAM336數(shù)控磨床電器系統(tǒng)技術(shù)改造

3 加工宏程序的編制

1. 磨削直線面的宏程序
   
   磨削直線面的宏程序(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)
   
   呼叫一次SUB9011 宏程序可完成磨削四個直線面的加工程序編制。在實際應(yīng)用中，可根據(jù)圖紙和工藝要求，通過在演算子程序中連續(xù)呼叫SUB9011宏程序來完成磨削任意直線面的加工編程。為此，首先需要建立一個演算子程序(即呼叫子程序)，然后在該程序中對參數(shù)進行賦值，即可完成加工程序的編制。需要賦值的參變量包括：初始上料角度P0，磨床*邊半徑尺寸P1，磨削第二邊外夾角P2，磨削第二邊半徑尺寸P3，磨削第三邊夾角P4，磨削第三邊半徑尺寸P5，磨削第四邊外夾角P6，磨削第四邊半徑尺寸P7，*邊到第四邊的后角P11～P14，磨削速度P20，外接圓半徑P21，空磨時間P23。
   
   
2. 磨削圓弧面的宏程序
   
   磨削圓弧面的宏程序(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)
   
   (P23 = P23 + P12)
   
   (P18 = P18 = P12)
   
   (IF P23 LE(P19 + P4)GOTO N35)
   
   (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)
   
   通過呼叫SUB9010 宏程序，可實現(xiàn)磨削任意形狀圓弧面的加工程序編制。使用時，通過對參數(shù)賦值即可完成加工程序編制。需賦值的參變量包括：初始磨圓角P0，X 中心坐標P1，Y 中心坐標P2，圓弧半徑P3，圓弧轉(zhuǎn)角P4，切線角度P7，圓弧分度P12，圓弧速度P20，外接圓半徑P21。
   
   
   
   
   
   圖
   
   
3. 加工實例
   
   現(xiàn)以磨削加工如圖所示刀片為例，說明如何調(diào)用宏程序SUB9010、SUB9011 和建立演算子程序。
   
   該刀片需要加工的尺寸包括二個直線面(14mm×7mm)和四個圓弧面(4-R2mm)。根據(jù)工藝要求，首先磨削直線面，再依次磨削圓弧面。刀片初始上料角度為0°。編制演算子程序如下：
   
   (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
   
   將編制好的演算子程序在機床中運行，生成一個新的磨削子程序P8000。在實際加工中，將P8000連接到主程序中即可實現(xiàn)刀片的磨削。