Patent ID: 6819973
Filing Date: 2004-11-16
Classification: G05B,Y10T

Abstract:
A control apparatus for numerical control of a cutting machine comprising a turret which is rotatable about a turret axis and a cutting tool attached to the turret and rotatable about a tool axis, wherein:an X-axis value (L2r) of a cutting edge of said cutting tool when said cutting tool is rotated about said tool axis to a tool rotation angle (&bgr;) is calculated according to the equation of L2r=L2Â·cos &bgr;; and an X-axis offset value (&Dgr;Xr) and a Z-axis offset value (&Dgr;Zr) when said turret is turned to a turret rotation angle (&agr;) are calculated according to the following equations 3 and 4, wherein said X-axis offset value (&Dgr;Xr) after the rotation of said cutting tool and said Z-axis offset value (&Dgr;Zr) after the rotation of said cutting tool are indicated on a display: â€ƒ&Dgr;Xr=(&Dgr;AzÂ·cos &agr;âˆ’&Dgr;AxrÂ·sin &agr;)Ã—2â€ƒâ€ƒ(Equation 3)&Dgr;Axr=L2r+L4&Dgr;Az=L1+L3&Dgr;Zr=âˆ’&Dgr;AzÂ·sin &agr;âˆ’&Dgr;AxrÂ·cos &agr;â€ƒâ€ƒ(Equation 4), wherein L1 is a Z-axis value of the tool, L4 is an X-axis value of the turret and L3 is a Z-axis value of the turret.