Product category:
Seam-tracking, guidance systems
News Release from: Oxford Sensor Technology | Subject: Circular Scanning Sensor for weld seams
Edited by the Manufacturingtalk Editorial
Team on 13 February 2003
Robots can locate weld seams faster
Using a circular scanning sensor overcomes poor imaging quality of existing weld seam laser tracker systems and allows the start and end point of seams to be located in a single measurement.
Unlike linear sensors for seam tracking which use either a projected laser strip (stripers) or a linear scanning spot to locate seams, the Circular Scanning Sensor (CSS) from Oxford Sensor Technology, uses a rotating spot of laser light Not only does this overcome the poor imaging quality associated with striper systems, it allows a full 3D model of the seam to be analysed and the start and end points of seams to be located in a single measurement
This article was originally published on Manufacturingtalk on 20 Aug 2001 at 8.00am (UK)
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Simpler system ensures weld paths are followed
A simple welding wire detection system uses LEDs and mathematical algorithms to monitor the wire and ensure all welds follow the correct path every time.
Location of an internal or external box corner with a linear system would require three independent measurements, with the sensor being moved between each one.
Using the CSS a corner is accurately located in a single measurement taking only a fraction of a second to complete.
The intensity of the rotating spot can be automatically varied whilst measuring to compensate for changes in material and the excellent imaging quality ensures accurate seam location even on aluminium.
(This was Manufacturingtalk's Top Story on 12 February 2003).
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