Scanning head of a laser marking machine

Abstract

The invention discloses a scanning head of a laser marking machine. The scanning head comprises a first water cooling base, a second water cooling base, a first fixing part and a second fixing part, wherein the first water cooling base and the second water cooling base are installed on a first supporting plate and a second supporting plate respectively. A water duct in the first water cooling base is communicated with a water duct in the second water cooling base through a water pipeline, the water pipeline penetrates through the fixing parts to be perpendicularly connected into connectors on water inlets of the water cooling bases and connectors on water outlets of the water cooling bases to form a water cooling circulating channel. It is avoided that due to too high temperature, the swing angle of a lens deviates, water leakage at the joints of the water pipeline is effectively avoided, and marking quality and equipment stability are improved. Meanwhile, if accidental water leakage occurs and water drops to marked objects through a ponding tank, operators can find the situation in time and shut down for maintenance, and safety is greatly improved. The water cooling bases, the fixing parts, the first supporting plate and the second supporting plate are matched with one another, so that the size of the scanning head is greatly reduced.

Description

technical field [0001] The invention relates to the field of laser marking equipment, in particular to a scanning head of a laser marking machine. Background technique [0002] At present, some laser marking machines on the market use a servo motor to drive the laser scanning lens to swing to adjust the angle of the laser beam. However, due to the high-speed operation of the scanning lens during the marking process, the temperature rises rapidly, and the accumulation of heat It is easy to cause changes in the properties of the laser working medium and affect the quality of the output laser beam. If the heat cannot be discharged in time, the temperature in the cavity will continue to rise, which will affect the normal operation of the laser marking machine, and there will be certain safety hazards, so the temperature control of the scanning head of the laser marking machine is the key to the long-term operation of the laser. Guarantee of efficient work on time. [0003] In ...

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Problems solved by technology

[0004] In order to solve the above shortcomings, the present invention designs a scanning head of a laser marking machine, which overcomes the phenomenon of temperature drift caused by excessive temperature during the marking process, and greatly improves the marking accuracy and safety

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