Patent ID: 8561284

Claim:
A machining device comprising at least one machining head that is movable along at least three axes of translation, termed the longitudinal axis X, the transverse axis Y, which is transverse with respect to the X axis, and the vertical axis Z, which is transverse with respect to the X and Y axes, for machining an immobile workpiece, wherein: the workpiece is fixed above the at least one machining head on the Z axis; the at least one machining head is kept in a constant orientation by connection means comprising at least three hinged links; two links of the at least three links are hinged to the at least one machining head and to a first Y carriage so as to form a first parallelogram that is deformable in the plane defined by the X and Z directions; at least one other link of the at least three links is hinged both to the at least one machining head and also to a second Y carriage, so that the hinged assembly formed by the at least one other link, the at least one machining head and the second Y carriage is deformable in the plane defined by the X and Z directions; the first Y carriage is movable in a direction parallel to the Y axis on a first X carriage that is movable in a direction parallel to the X axis; and the second Y carriage is movable in a direction parallel to the Y axis on a second X carriage that is movable in a direction parallel to the X axis.