Workbench for quick-cooling laser marking machine

Abstract

The invention discloses a workbench for a quick-cooling laser marking machine. The workbench for the quick-cooling laser marking machine comprises a fixed seat and a positioning groove formed in the top of the fixed seat, wherein a cavity of a T-shaped structure is formed in the fixed seat; two opposite wedge-shaped blocks are connected in the cavity in sealing and sliding manners; springs are separately fixedly connected to one sides, away from each other, of the two wedge-shaped blocks; an electromagnet is fixedly connected to the bottom of the cavity; the electromagnet abuts against a sealing plate of a permanent magnet structure, and like poles of the electromagnet and the magnetism of the sealing plate are opposite; a backflow hole is formed in the sealing plate in a penetrating mode;and a one-way valve is connected in the backflow hole in a sealing mode. The workbench has the advantages that after processing is finished, the sealing plate is moved upwards, so that the two wedge-shaped blocks are pushed to be separated under the action of hydraulic pressure, cooling liquid with a low boiling point is connected with the bottom of the positioning groove, the cooling liquid absorbs heat and evaporates greatly, then the temperature of the bottom of the positioning groove is lowered, and the bottom of an object is subjected to heat absorption operation.

Description

technical field [0001] The invention relates to the technical field of laser marking machines, in particular to a working table for a quick-cooling laser marking machine. Background technique [0002] Laser marking is the use of laser beams to permanently mark the surface of various materials. The effect of marking is to expose the deep material through the evaporation of the surface material, or to "carve" traces through the chemical and physical changes of the surface material through light energy, or to burn part of the material through light energy, showing the required etching. pattern, text. [0003] In the prior art, when the laser marking machine is in use, due to the concentrating effect of the laser, a large amount of heat will be generated when the light energy burns off part of the material on the surface of the object, making the surface temperature of the processed object extremely high. In this state, it cannot be cooled in a short time, which will affect th...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the surface temperature of the object after laser marking is extremely high, and it is difficult to reduce the temperature in a short time in the state of natural air drying, which affects the subsequent operation process. Working table for fast cooling laser marking machine

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