GMA Additive Manufacturing Dual Passive Vision Sensing Detection Device and Its Detection Method

Abstract

The invention provides a GMA additive manufacturing dual passive visual sensing detection device and detection method, the device includes a working platform, a substrate, a welding torch, a nozzle, a width visual sensor, a width composite filter system, a height vision sensor, and a height composite filter system , the width visual sensor is used to monitor the width information of the tail of the piled molten pool, and the height visual sensor is used to monitor the distance from the nozzle to the tail of the piled molten pool. The detection method includes piled size image processing and sensor system calibration process; the present invention can simultaneously monitor the GMA The characteristic information of the accumulation width of additive manufacturing and the distance from the nozzle to the upper surface of the cladding layer effectively solves the problem of real-time detection of the deposition width and height of GMA additive manufacturing. The closed-loop control provides a reliable technical support for the real-time control of the accumulation quality of GMA additive manufacturing.

Description

technical field [0001] The invention relates to a gas metal arc (GMA) additive manufacturing stack size passive visual sensing detection device and method, belonging to the technical field of arc additive manufacturing. Background technique [0002] With the increasingly stringent requirements for the performance, precision, manufacturing cost and cycle of dense metal parts in key technical fields such as aerospace, energy power, and national defense, the use of additive manufacturing technology to directly form metal parts has become a research hotspot at home and abroad. Commonly used heat sources for additive manufacturing of metal parts include lasers, electron beams, and electric arcs. Among them, the gas metal arc (GMA) additive manufacturing technology uses welding arc as the heat source to melt the metal wire, and stacks each layer on the substrate according to the set forming path, layer by layer until the formed metal part , has the advantages of low manufacturing...

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to solve the problems of inconsistent forming dimension width and the change of the distance from the nozzle to the upper surface of the cladding layer in the existing GMA additive manufacturing, and to provide a GMA additive manufacturing double passive Visual sensing device and detection method thereof

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