Coordinate system description of the robot
4-151
(2) Tool coordinate system
A tool coordinate system is one that is defined for the leading end of the robot hand (control point for the
robot hand).
It is obtained by shifting the origin point of a mechanical interface coordinate system to the leading end of
the robot hand (control point hand) and adding given rotational elements.
X axis, Y axis and Z axis of the tool coordinate system are denoted as Xt, Yt and Zt, respectively.
Fig.4-8:Mechanical interface coordinate system and tool coordinate system
Tool data consists of the same elements as position data.
X, Y, Z: Amount of shift. Amount by which the origin point of the mechanical interface
coordinate system is shifted to agree with that of the tool coordinate system (in mm).
A, B, C: Angle of rotation of each coordinate axis (in degrees)
A
→
Angle of rotation on X axis
B
→
Angle of rotation on Y axis
C
→
Angle of rotation on Z axis
ツール座標系
メカニカルインタフェース
座標系
Ym
Xm
Zm
Zt
Yt
Xt
Mechanical interface
coordinate system
Tool coordinate
system