Protective device of cutting machine

Abstract

The invention discloses a protective device of a cutting machine, and belongs to the technical field of cutting machines. The device comprises a cutting machine body; a shell assembly, the end part of an air guide pipe being fixedly connected with a waist-shaped shell, and the surface of the waist-shaped shell being fixedly connected with a communicating pipe; a pneumatic balance assembly, an air guide ring being embedded in the inner surface of the annular seat, and the air guide ring being connected with air injection equipment through a connecting pipe; and a blocking assembly, arranged in an inner cavity of the kidney-shaped shell. Air flow is evenly blown to the hollow seat through the air guide ring, when foreign matter enters the air guide pipe, pneumatic balance is broken after the foreign matter passes through the blown air flow surface, air pressure in the spherical sleeve is changed, the positioning disc is driven to move forwards along the guide column, the tensioning acting force on the traction rope is relieved, the blocking plates draw close to each other and are combined under the action of the connecting springs, and the blocking plates are driven to enter the inner cavity of the air guide pipe under the action of the reset springs, so that the ventilation efficiency is improved, the tedious operation of subsequent maintenance is avoided, and the problem of foreign matter blockage is avoided.

Description

technical field [0001] The invention relates to the technical field of cutting machines, in particular to a protective device for cutting machines. Background technique [0002] The laser cutting machine focuses the laser light emitted from the laser device into a high power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam will blow away the molten or gasified metal. purpose of cutting. [0003] During the processing of the laser cutting machine, the contact part with the workpiece will generate a high temperature, and the contact part needs to be cooled in time in the follow-up, but when the device for heat dissipation is in use, the vents in it may sometimes be in the ventilation process. There will be foreign objects entering the vents, resulting in a decrease in ventilation efficiency or ...

AI Technical Summary

Problems solved by technology

[0003] During the processing of the laser cutting machine, the contact part with the workpiece will generate a high temperature, and the contact part needs to be cooled in time afterwards, but when the device used for heat dissipation is in use, the vents in it may sometimes be in the ventilation process. There will be foreign objects entering the vents, resulting in a decrease in ventilation efficiency or blockage of the ventilation passages. The current vents are often solved by installing a screen, but the screen is easy to accumulate dust, and it is difficult to clean after the screen is blocked. And the screen will also have a certain impact on the ventilation efficiency. Therefore, we propose a protective device for cutting machines

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