Totally-digital laser focusing automatic tracking system

Abstract

The invention discloses a totally-digital laser focusing automatic tracking system. The system comprises a front end sensor, servo motor equipment and a control host. The front end sensor is arranged on a laser device and is used for collecting laser focus signals from the laser device. The servo motor equipment is used for automatically adjusting the focus height of the laser device based on a servo motor. The control host receives the laser focus signals collected from the front end sensor and conducts filtering processing on the signals, then acquires the focus height information of the laser device from the laser focus signals through a recursion average filtering algorithm, and controls the servo motor equipment according to the focus height information so as to automatically adjust the focus height of the laser device. Due to the facts that the front end sensor collects the signals, and the control host processes the signals and controls output signals to be subjected to digital processing completely, the dynamic response speed is high, the signal transmission distance is long, the environment temperature influence is avoided, and measuring accuracy is high. Automatic control is realized, the distance from a laser focus to the central position of the plane of a part is kept unchanged, and processing technique consistency is maintained.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to an all-digital laser focusing automatic tracking system. Background technique [0002] Lasers are one of the essential core components in modern laser processing systems. With the development of laser processing technology, lasers are also constantly developing. At present, in the field of laser applications, because the laser focus position is fixed, when the surface of the material to be processed is uneven, the laser will appear out of focus. When this happens, the processing technology will be inconsistent. Contents of the invention [0003] In view of the above problems, the present invention proposes an all-digital laser focus automatic tracking system, which keeps the distance between the laser focus and the center of the part plane unchanged by automatic control, and maintains the consistency of the processing technology. [0004] In order to solve the above technical ...

AI Technical Summary

Problems solved by technology

With the development of laser processing technology, lasers are also constantly developing. At present, in the field of laser applications, because the laser focus position is fixed, when the surface of the material to be processed is uneven, the laser will appear out of focus. When this happens, it will cause inconsistencies in the processing technology

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