Patent ID: 6920375
Filing Date: 2005-07-19
Classification: B23K,B25J

Abstract:
1. An optical arm for coupling to a robot and adapted to movement of the robot so as to ensure the guidance of a laser beam from a laser beam generator to an outlet part, comprising: a first bent tubular part coupled to an outlet of the laser beam generator for rotational movement thereon and coupled to a third arm of the robot; a second bent tubular part coupled to a first support for rotational movement thereon and coupled to a fourth arm of the robot; a plurality of guides, the guides coupling the first bent tubular part and the second bent tubular part for relative movement of each of the first bent tubular part and the second bent tubular part, and the guides positioning an outlet of the first bent tubular part and an inlet of the second bent tubular part in opposing relationship during rotation of the fourth arm of the robot; an extendable tubular element coupling the outlet of the first bent tubular part and the inlet of the second bent tubular part and delimiting the passage area of the laser beam; a third bent tubular part coupled to the second bent tubular part, whereby an inlet of the third bent tubular part is positioned opposite an outlet of the second bent tubular part and an outlet of the third bent tubular part is positioned coaxially with a fifth rotation axis of the robot; a fourth bent tubular part having three bends coupled to the third bent tubular part, whereby an inlet of the fourth bent tubular part is positioned coaxially with an outlet of the third bent tubular part for rotational movement of the fourth bent tubular part and an outlet of the fourth bent tubular part positioned parallel to a sixth rotation axis of the robot; a second support for coupling the fourth bent tubular part with a fifth arm of the robot, whereby the fourth bent tubular part is positioned for rotation about the outlet of the third bent tubular part; a straight tubular length coupled to the fourth bent tubular part and positioned coaxially with the outlet of the fourth bent tubular part; a third support coupled to the fourth bent tubular length, whereby the fourth bent tubular length is maintained in a non-rotational relationship with respect to the fifth arm of the robot; the outlet part coupled coaxially to the tubular length for rotational movement; and a transmission, the transmission transmitting the rotational movement of the sixth arm of the robot to the outlet part.