A laser marking focus calibration device and calibration method

Abstract

The invention relates to a laser marking focus calibration device and a calibration method, comprising a substrate and two red light adjustment units, characterized in that: the two red light adjustment units are symmetrically fixed on both sides of the substrate, and the red light The adjustment unit includes a fixed base, an adjustment shaft, an adjustment bolt, a red light tube base, a red light tube, a compression spring and an aperture diaphragm; the red light tube base and the adjustment shaft are connected to the fixed base through an adjustment bolt, and the adjustment shaft is connected to the The fixed seat is slip-fitted and can slide along the axis of the adjusting bolt, and the red light pipe seat and the adjusting shaft are slip-fitted and can rotate around the axis of the adjusting shaft. The compression spring is sleeved on the adjusting bolt and is located between the adjusting shaft and the fixing seat , the red light tube base is provided with a stepped hole, the red light tube is fixed in the stepped hole, and the aperture stop is located in the stepped hole, between the red light tube and the red light tube base. The method for calibrating the laser marking focus of the present invention is simple to operate, has high precision in indicating the focus position, and is easy to realize standardized management.

Description

technical field [0001] The invention relates to the technical field of laser marking, in particular to a laser marking focus calibration device and a calibration method. Background technique [0002] At present, most marking machines on the market use manual focus adjustment. Before marking, the height of the workbench must be adjusted repeatedly to find the focus position. For special materials, off-focus marking is required. When the workpiece size changes, the height of the workbench needs to be readjusted. Finding a new focus position increases the working time; when determining the focus, a thin metal sheet is often placed on the upper surface of the workpiece for pre-marking, which increases the operating cost. Contents of the invention [0003] The object of the present invention is to provide a laser marking focus calibration device and a calibration method in order to save focus adjustment time and adapt to marking workpieces with different working heights. The m...

AI Technical Summary

Problems solved by technology

[0002] At present, most marking machines on the market use manual focus adjustment. Before marking, the height of the workbench must be adjusted repeatedly to find the focus position. For special materials, off-focus marking is required. When the workpiece size changes, the height of the workbench needs to be readjusted. Finding a new focus position increases the working time; when determining the focus, a thin metal sheet is often placed on the upper surface of the workpiece for pre-marking, which increases the operating cost

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