G75 Automatic chamfering Okuma Control

G75 Automatic chamfering

        

          Corners of work can be chamfered using a simple program.

        

[Command format]

         G75 G01 X_ L_ F_

                  Z_

          X and Z: Instruct target points for axis movement.

          L: Instruct a (+) or (-) signed chamfering distance when the direction of axis movement in the next block is positive or negative direction, respectively.

[Note]

         1. G75 is valid only in the G01 mode.

          2. The chamfering program is effective also in combination  with LAP instruction or during nose radius compensation.

          

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Transverse Cut-Off Cycle G75 Or Diameter Grooving Cycle:-

Transverse Cut-Off Cycle G75 Or Diameter Grooving Cycle:-

Overview:-

  

          This function is used for smooth disposal of machining chips in transverse cut-off machining. This allows easy disposal of machining chips in face turning as well. Both G74 and G75 which are used for cutting off, grooving or drilling, are a cycle to give the escape of a tool automatically. Four patterns which are symmetrical with each other are available. During single block operation, all the blocks are executed step by step.

Programming Format:-

     

       G75 R (1^st ) ;

    

        G75  x__ Z__ P__ Q__ R__ F__ S__ T__  ;

Description:-

            R        =        Distance of Return

          X        =        Absolute Value / Incremental Value of X-Axis

          Z        =        Absolute Value / Incremental Value of Z Axis

          P        =        X-axis cut depth

          Q       =        Z-Axis Movement Distance

R        =        ( 2^nd R )Tool Escape Distance at the Bottom of Cut

          F        =        Feed Rate

          S        =        S Command

          T        =        T Command

Sample Program:-

            G00 G96 G98 ;

          G28 U0 W0 ;

          X102. Z-20. ;

          G75 R2. ;

          G75 W-15. X70. P6. Q5. F150 S100 M3 ;

          G28 U0 W0 ;

          M30 ;

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