Online layer thickness compensation system for laser cladding

Abstract

The invention relates to an online layer thickness compensation system for laser cladding. The online layer thickness compensation system comprises a light splitting module, a light filtering module, a laser ranging module and a data processing module, the light splitting module is mounted on the cladding head, is positioned below the cladding head, is coaxially arranged with the cladding head, and is used for introducing the whole detection light path into a main processing laser optical axis; the light filtering module is arranged between the laser ranging module and the light splitting module and is used for filtering stray light; the laser ranging module is used for emitting detection light, the detection light is returned after reaching a processing plane and returns to the laser ranging module along an original light path, and the laser ranging module processes the received returned light and outputs a distance signal; and the data processing module is connected with the laser ranging module and is used for receiving the distance signal, processing the distance signal into layer thickness data and comparing a detected layer thickness value with a preset layer thickness value to automatically carry out process fine tuning. According to the invention, real-time monitoring and full-automatic compensation of the thickness of the processing layer are realized, and the method can be adapted to most laser cladding systems.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, in particular to an online layer thickness compensation system for laser cladding. Background technique [0002] The existing laser cladding equipment cannot realize the closed-loop process during the printing process. When an abnormality occurs, the equipment cannot automatically identify the abnormality. With the accumulation of printing time, workpiece defects will gradually accumulate and enlarge. Higher requirements require human observation and intervention when defects accumulate to a certain level. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides an online layer thickness compensation system for laser cladding, which can realize basic functions such as real-time automatic measurement of processing distance during processing, and can The distance signal is fed back to the data processing module, which is a...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides an online layer thickness compensation system for laser cladding, which can realize basic functions such as real-time automatic measurement of processing distance during processing, and can The distance signal is fed back to the data processing module, which is automatically processed into layer thickness data, and the data processing module then fine-tunes the process according to the comparison between the measured value of the layer thickness and the preset expected value, so as to achieve the purpose of real-time automatic compensation of the layer thickness; It solves the problem that the existing laser cladding process cannot get closed-loop feedback and requires on-site intervention by operators

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