SINUMERIK CNC PROGRAM FOR COMBINE CYCLE 95 &97 ( INTERNAL THREADING)

SINUMERIK CNC PROGRAM FOR COMBINE CYCLE 95 &97 ( INTERNAL THREADING)

MAIN PROGRAM

HARSH .MPF

N01   G90 G71 G94 F100 ;

N02   G28 X0 Z0  ;

N03   M06 T05 D01 ;

N04   M03 S1000 ;

N05   M07 ;

N06   G00 X50 Z 2 ;

N07   Cycle 95 [ RAM , 0.2 ,0.1 ,0.1 , 0.1 , 200 , 300 , 200 , 11 ,_ ,_,_]

N08   G28 X0 Z0 ;

N09   M05 ;

N10   G94 F50 ;

N11   M06  T02  D01 ;

N12   M03  S600 ;

N13   G00   X50  Z2 ;

N14   CYCLE 97 [ 2 , 0 , 0, -30 ,50 , 50, 0 ,0 , 1.226 , 0.05 , 30 , 0 , 12 , 2 ,

4, 1 , _]

N15   G28 X0  Z0 ;

N16   M05 ;

N17   M09 ;

N18   M30 ;

SUB  PROGRAM FOR CYCLE 95

RAM.SPF

N01  G01  X50 Z0 ;

N02  G01 X50 Z-30 ;

N03  G01 X20 Z-40 ;

N04  G01  X20 Z-50 ;

N05  M17 ;                                                        More examples..........!!!!

DISCRIPTION OF PROGRAM

MAIN PROGRAM

(note : G coge for sinumerik and fanuc are not exactly similar )

N01-   Program in absolute co-ordinate system ,  all dimension in mm , feed in mm permin , feed rate 100 .

N02 -  Referance point command where tool at X0 Z0 .

N03 – Tool change command , select tool no 5 and offset diameter 01 .

N04 – Spindle onclockwise at speed 1000 rpm.

N05 – Coolant ON .

N06 – Rapid command to near to the job and ready for machining .

N07 – For understanding these  block we have to need knowledge about “stock removal  cycle data “

           Refer this link – STOCK REMOVAL CYCLE 95 DATA 

          

The following data directly put value in computer

       NPP – RAJ

       MID – 0.2

       FALZ – 0.1

       FALX – 0.1

       FAL -    0.1

       FF1 -   200

       FF2 –  300

       FF3 -   200

       VARI - INT=11(Operation perform Internally therefore we take  11, if externally we take 9)

       DT -   ___ (skip it)

       DAM -  ____(skip it)

       VRT -   ____(skip it)

N08 -  Referance point command where tool at X0 Z0 .

N09 – Spindlestop .

N10-  Feed rate in mm per min , feed 50

N11  – Tool change command , select tool no 2 and offset diameter 01 .

N12 – Spindle on clockwise at speed 600 rpm.

N13 – Rapid command to near to the job and ready for machining .

N14 – For better understanding refer this link – THREADING CYCLE 97

          This  parameter value directly put into computer .Fig shows 50M X2 , it means given is 50                  mm diameter and pitch 2

      PIT -    PIT means pitch of threads is 2 mm .

      MPIT -  It is also pitch of thread but it takes whenever if not given ,it is standards threads pitch                         from 3.5  to 60 . To produce metric cylindrical threads . But in these program we don’t                              need MPIT , we take zero .   
      SPL - Starting point of thread along  Z – axis , we take zero .

      FPL- End point of thread along Z – axis , we take -30 .

      DM1 - Diameter of thread at starting point is 50 .

      DM2- Diameter of thread at end point is also 50 .

      APP- How much tool away from when start operation , in these program no clearance is provide

                 hence we take zero .                 

      ROP -  After threading  ideal run path for Z axis , we take zero .

      TDEP- Thread depth , there is calculation  0.6134 x pitch ,

                        0.6134 X 2 = 1.226

      FAL - Finishing allowance for finish cut , we take 0.05 .

      IANG- Thread angle , if angle is 60 we take always half of the angle 30.

      NSP- Used for offset at starting  1⁰  , 2⁰  , but we naver take offset in these program hence we                        used 0 .   
      NRC- No. of rough cut , its deped on depth of cut . We take 12 .

      NID-Finishing cut at last . we take 2 .

      VARY- In computer panel there is four option for thread , generally we select for external                                threading no. 4.     

      NUMTH – No of thread cut this is depend upon single start and multi-start . We take 1 .

      VRT-   ___ (skip it )

                                         

N15 -  Referance point command where tool at X0 Z0 .

N16 – Spindle OFF

N17- Coolent OFF .

N18 – Mainprogram end .

SUB PROGRAM FOR CYCLE-95

RAM.SPF – Sub program name .

N01-  Tool at linearly where X50 and Z0 .(Position A)

N02- Tool moves linearly X50 and Z -30. (Position A to B )

N03 – Tool moves linearly X20 and Z -40 .( Position B to C)

N04 - Tool moves linearly X20 and Z -50 .( Position C to D)

N06- Sub programend .

SINUMERIK CNC PROGRAMMING FOR COMBINE CYCLE 95 & 97 (taper threading cycle)