Cheap Simple CO2 Laser Cutting Head Auto Focus Focusing Sensor for Automatic up Down Table

This auto focus is similar to the proximity switch sensor.
It works with up and down moving table.
The utility model relates to an automatic focusing structure for a laser carving machine. An electronic probe is mainly vertically arranged on a pen saddle of the laser carving machine; the electronic probe is designed into a circular pipe with an appropriate length; the top part of the circular pipe has a flange; the upper and the lower sections of the circular pipe are respectively provided with a concave ring for the clamping and the positioning of a positioning column on the pen saddle; the circular center part of the end face of the circular pipe is provided with an open hole for that internal a two-section type electronic sensing bar projects to the outer part. By that a platform driven by a Z shaft electrically rises, the surface of a processed object is in contact with the probe. According to lens focus distances stored by software, automatic focusing can be completed by that the platform drops down to a focusing face after calculation. When the utility model operates, the electron probe can be upwards folded without touching operation objects.