Laser welding system

• import of targets from CAD drawings
• machine vision for high-precision aiming and alignment
• control and recording of all process parameters

A flexible work cell based on a large, high-payload anthropomorphic arm, able to perform circular or linear steel-to-steel welds with a high-power infrared laser and position control through a vision system.

Main features

• Installation on a 6-axis robot with a maximum reach of 3.5 metres and a wrist payload of 125 kg
• Solid-state laser source of over 8 kW optical, with power transmitted over armoured optical fibre cooled at the connectors
• Collimation and focusing optics with copper mirrors cooled by circulating deionised water, a removable protective final glass, and crossed compressed-air jets at the exit to deflect splashes of molten metal.
• Automatic vision system able to guide the alignment of the robot-mounted tool on the welding points with a precision of < 0.02 mm, and a system for measuring the distance of the workpiece using orthogonal laser lines, with a precision of < 0.1 mm
• Surveillance system for quality control and safety based on 4 IP cameras connected to a recording system
• Complete management of recipe revisions according to quality standards.
• Detailed records of the welding process, with initial and final photos, are kept for every single weld for quality control purposes
• SMS alarm system to report anomalies to the operator on duty during unsupervised automatic operation

CASE HISTORY: LASER WELDING

Qnet DIVISION: AUTOMATION

MANAGER: MASSIMO BELLUZ

CUSTOMER: MANGIAROTTI SPA

DELIVERY DATE: JANUARY 2009