Modified structure of laser marking machine and method for machining hollowed-out matrix through laser marking machine

Abstract

The invention discloses a modified structure of a laser marking machine and a method for machining a hollowed-out matrix through the laser marking machine. The laser marking machine can carry out both marking and hollowed-out machining. The invention further provides the method for machining the hollowed-out matrix. The laser marking machine is composed of a supporting frame (4) fixed on a machine cabinet (5), an optical fiber laser device (3) fixed to the supporting frame, a plurality of two-dimensional lens adjustment frames (2), a red light indicator (10), a high-speed scanning galvanometer (1), and a revolving clamping head (8) fixed to a three-dimensional worktable (6) through an inclined surface work plate (7). The method comprises the steps of workpiece positioning, focusing and scanning photoetching. Particularly, the matrix is fixed to the inclined surface work plate (7); the focal distance is adjusted, and it is ensured that the light beam of the red light indicator (10) and the light beam of the high-speed scanning galvanometer (1) coincide on the surface of the matrix; scanning photoetching is carried out on the matrix repeatedly until the light beams penetrate through the matrix.

Description

technical field [0001] The present invention relates to a laser marking machine, in particular to an improved structure of the laser marking machine; the present invention also relates to a method for processing hollow fonts by using the improved laser marking machine. Background technique [0002] As we all know, a laser marking machine is a special equipment that uses a high-energy laser beam to etch graphics, numbers, scales, etc. on the surface of an object; The lens adjustment bracket, the red light indicator, and the scanning vibrating mirror are composed of a rotary chuck fixed on the three-dimensional worktable through the inclined working plate. Since the traditional laser marking machine uses a semiconductor laser, its power is small, and the laser beam cannot penetrate the font; therefore, it can only be used as a surface marking, not as a hollowing out device. [0003] Font is a kind of hollow thin template suitable for spraying or printing graphic marks on work...

AI Technical Summary

Problems solved by technology

Since the traditional laser marking machine uses a semiconductor laser, its power is small, and the laser beam cannot penetrate the font; therefore, it can only be used as a surface marking, not as a hollowing out device.

[0003] Font is a kind of hollow thin template suitable for spraying or printing graphic marks on workpieces or equipment, usually made by hand engraving; not only the font is not standardized, but also the efficiency is low

For this reason, there are also methods of milling or wire cutting. Although some improvements have been made, when the thickness of the template is less than 1mm, the phenomenon of knife springing will occur; and due to the limitations of the size of the tool and processing equipment, it is difficult to meet the requirements of small fonts or complex fonts. pattern requirements

Although the laser cutting machine can greatly improve the efficiency and meet the requirements of some complex patterns, the diameter of the laser beam is relatively thick (0.8-2mm), which still cannot meet the special requirements of some small fonts and complex patterns.

Images