An automatic through-hole system for laser cutting nozzles

Abstract

The invention relates to the field of laser cutting assistant devices, and in particular relates to an automatic through hole system for a laser cutting nozzle. The system comprises a work table and a cutting control system. A laser cutting head is arranged above the work table and comprises a cutting nozzle and further comprises a cutting nozzle block detection module and a through hole module. The cutting nozzle block detection module comprises a reducing valve and a flow sensor. The flow sensor is connected with a microprocessor system which is connected with the cutting control system. The through hole module comprises a through hole needle fixed at the edge on one side of the work table. The system further comprises a three-axis mobile platform. At least of the work table and the laser cutting head is arranged on the three-axis mobile platform. The microprocessor system dredges the laser cutting head by using the through hole needle through movement of the three-axis mobile platform. According to the system provided by the invention, the hole block examining frequency is reduced and the continuity of the machining process is ensured and the whole process is enabled to be automatic without manual intervene.

Description

technical field [0001] The invention relates to the field of laser cutting auxiliary equipment, in particular to a cutting nozzle through-hole system. Background technique [0002] During the laser cutting process, the laser beam is irradiated onto the surface of the material to be cut 11 after being focused. In order to assist laser cutting, the cutting nozzle 12 needs to be coaxially blown, and high-pressure air or oxygen is used as the auxiliary gas, such as figure 1 As shown, when the lower surface of the cutting nozzle 12 is closer to the cutting surface, part of the melted material will accumulate on the inner wall of the cutting nozzle 12 . Such as figure 2 As shown, the longer the time, the more waste materials will accumulate, and eventually the dross 13 will cause the cutting nozzle 12 to be blocked, blocking the transmission of the laser beam, resulting in the cutting nozzle 12 not working normally. Affected by the processing technology, it is not possible to s...

AI Technical Summary

Problems solved by technology

like figure 2 As shown, the longer the time, the more waste materials will accumulate, and finally the dross 13 will cause the cutting nozzle 12 to be blocked, blocking the transmission of the laser beam, causing the cutting nozzle 12 to not work normally

Affected by the processing technology, it is not possible to stop frequently during the laser cutting process to detect the clogging of the laser cutting nozzle. During the laser cutting process, the clogging of the laser cutting nozzle cannot be determined

Checking whether the laser cutting nozzle is clogged too frequently will waste time and production efficiency, but not checking for a certain period of time will easily affect the laser cutting quality due to the clogging of the cutting nozzle

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