Theory And Application Of Laser Scanning Probe In The Flexible Coordinate Measuring Machines

Flexible Coordinate Measuring Machine was an equipment which can only its compact structure, flexibility and portability. Flexible coordinate measuring machine in the past to achieve is to contact the measurement, but for some soft fragile objects and some small holes, slots, circular workpiece, the contact measurement method can hardly be effective.This paper introduce a non-contact measurement method, we connect an FSL-60 scanning probe to the flexible coordinate measuring machine we independently developed, and it can be used to scanning and measuring the object. This method overcome some shortcomings of the original contact measurement methods, making Flexible Coordinate Measuring Machine more flexible.In this paper, through the study of a variety of structured light principle and method, as well as the investigation of the development status of domestic and foreign non-contact probe. Finally we selected a line of structured light measurement of FSL-60-type scanning probe, its accuracy is±0.045mm, scanning speed at 19200 points / sec. First, the study on the internal structure of the scanning probe and line structured light scanning measurement system, and secondly, we design its overall program, mechanical joints, coordinate transformation, after when the probe integrated into the flexible coordinate measuring machine. Finally, we study the theory of the camera calibration and the overall calibration.Experiments show that the machine can scan and measure the objects when the scanning probe is integrated on our self-developed flexible coordinate measuring machines,its accuracy reach in±0.15mm. At the same time, it combined with Geomagic Studio software we can reverse the product.