A Zero Focus Compensation Method for Intelligent Laser Cutting Head

Abstract

The invention discloses a zero-focus compensation method for an intelligent laser cutting head, which comprises the following steps: installing a magnetic scale on the moving section of the cutting head moving device; reading the magnetic grid signal of the magnetic scale through a main control unit MCU, And determine the zero point position reference; control the cutting head moving device to drive the laser cutting head to move up and down, thereby driving the focusing lens barrel to move up and down, and stop the movement when the zero point position reference is found by reference. The zero-focus compensation method of the intelligent laser cutting head of the present invention can perform a compensation calibration for the deviation between the assembly zero-focus and the theoretical zero-focus, and add the compensation value into each focusing and reference process to realize the function of eliminating errors . The invention performs zero focus compensation calibration at the factory, which reduces the difficulty of operation and ensures the continuity and consistency of zero focus compensation parameters. Difficulty of use.

Description

technical field [0001] The invention specifically relates to a zero-focus compensation method for an intelligent laser cutting head. Background technique [0002] The components of the laser cutting machine cutting head are: nozzle, focusing lens and focus tracking system. The laser cutting machine focus tracking system is generally composed of a focus cutting head and a tracking sensor system. The cutting head is composed of light guide focusing, water cooling, air blowing and mechanical adjustment; the sensor is composed of sensing element and amplification control part. The tracking system is completely different according to the different sensing elements. Here, there are mainly two types of tracking systems, one is the capacitive sensor tracking system, also known as the non-contact tracking system. The other is an inductive sensor tracking system, also known as a contact tracking system. [0003] The theoretical zero focus of the laser cutting head is required to be...

AI Technical Summary

Problems solved by technology

No zero focus compensation will affect the follow-up focusing accuracy

Compensation is done on the computer side of the host computer, which leads to the continuity of the parameters of the cutting head. If the cutting head is repaired or replaced, the parameters need to be re-adjusted, which increases the difficulty of use by on-site debuggers.

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