Machine Tool

A machine tool (M) comprising a kinematic structure (100) that moves an electric spindle (300) carrying a cutting tool (0), the cutting tool (0) rotating on the axis of the electric spindle (300),

• the kinematic structure (100) moving the electric spindle (300) in a positioning plane perpendicular to the axis of the electric spindle (300),
• the machine tool (M) comprising a workpiece (P) support module (200),
• characterized in that said kinematic structure (100) positions the electric spindle in said positioning plane and is an articulated structure comprising two articulated arms (110, 120):
• a first arm (110) having two ends (111, 112), a first end (111) of the first arm (110) being mounted to pivot in relation to a plate (130) about a single axis of rotation parallel to the axis of the electric spindle (300), a first means of driving (140) in rotation comprising a rotating shaft motor ensuring the movement about this axis,
• a second arm (120) having two ends (121, 122), a first end (121) of the second arm (120) being mounted to pivot in relation to the second end (112) of the first arm (110) about a single axis of rotation parallel to the axis of the electric spindle (300),
• a second means of driving (150) in rotation comprising a rotating shaft motor ensuring the movement about this axis,
• the second end (122) of the second arm (120) receiving the electric spindle (300),
• the machining taking place by a relative translation movement of the workpiece in relation to the electric spindle positioned and held fixed by the kinematic structure in said positioning plane, the translational movement of the workpiece (P) in relation to the tool (0) of the electric spindle (300) in a linear movement parallel to the axis of the electric spindle (300) being brought about by the workpiece (P) support module (200) or by a plate (130) support module.