Method of adjusting the optical path of laser cutting machine

Method of adjusting the optical path of laser cutting machine

The laser cutting machine itself uses a flying light path system. During long-term work, the light path will be slightly deviated, which will have a great impact on the cutting effect. Therefore, it is very necessary to check the light path and adjust it regularly. So how to adjust the optical path of the laser cutting machine? There are these tips.

　　 By adjusting the angle of the three mirrors to make the light path parallel, the laser head hits the same spot at any position, focusing on the center of the focusing lens. The method of adjusting the optical path of the fiber laser cutting machine: (adjust the current to 4-5mA)

　　 1. Check whether the laser can hit a reflective lens. (Method to cover a mirror with a plastic sheet, press the TEST button to see the laser dot position) If the laser cannot hit the first lens, adjust the position of a lens.

　　2. Check whether the laser can hit the second and third mirrors. If not, adjust the M1, M2, and M3 screws behind the upper mirror.

　　3. Paste at least two layers of double-sided tape at the light entrance of the laser lens barrel, move the laser head to the upper right corner of the table and press the TEST button on the control panel to hit a laser spot.

　　4. Move the laser head to the upper left corner and hit a laser spot to see if it is at the same position as the spot hit on the upper right corner. If it is not at the same position, adjust the M1, M2, and M3 screws of the second mirror. Make the hit point and the point in the upper right corner at the same position.

　　 5. Move the laser head to the lower left corner, observe whether the dot is at the same position as the upper right corner, and adjust the second reflector.

　　6. Repeatedly adjust as described in d and e above, and finally the three laser points hit the same position.

7. Check whether the focus is in the center: Place a mirror below the focusing lens, and place a transparent plastic sheet close to the lens barrel under the lens barrel (ie, hold it in hand) and press the TEST button to hit the laser to see if the laser spot hits the focusing lens. center of. Be careful of laser burns when holding the plastic sheet, and do not put your hands in the vertical plane of the lens.

　　Note: When adjusting the optical path, adjust the M1, M2, and M3 screws of the frame angle to a small amount each time, and observe the changes in the optical path.