Five-axis linked numerical control laser cutting machine for hole edge of blister shell of helmet and process thereof

Abstract

The invention discloses a five-axis linked numerical control laser cutting machine for a hole edge of a blister shell of a helmet and a process thereof and belongs to the technical field of laser cutting. The five-axis linked numerical control laser cutting machine for the hole edge of the blister shell of the helmet comprises a worktable. A spindle capable of translating along axes X, Y and Z ismounted on the upper side of the worktable; a carbon dioxide laser tube and a launching mirror are mounted in the spindle; the lower end of the spindle is connected to a rotatable shaft C, the lower end of the shaft C is connected to a shaft A capable of rotating around the axis X, the tail end of the shaft A is connected to a laser cutting head, and the laser cutting head comprises a focus lamp.The hole edge of the blister shell of the helmet can be cut by applying a five-axis linked numerical control laser cutting technology. Cut by laser, material is sublimated to gas instantaneously and gas is taken away by an exhaust fan without an obvious mechanical force to a blister workpiece. The cut edge is smooth, the quality of the edge is far better than that of machining, and the quality ofa product is enhanced conveniently, and the competitiveness is improved.

Description

technical field [0001] The invention relates to the technical field of laser cutting, and more specifically relates to a five-axis linkage numerically controlled laser cutting machine for the hole edge of a plastic-absorbing shell of a helmet and a process thereof. Background technique [0002] In the industry, three mass production methods are usually used to cut the hole position and edge of the plastic shell of the helmet, and the analysis is as follows: One is cutting with a six-axis robot milling cutter, which has the advantages of large degree of freedom in machine processing, low labor intensity of workers, and fast production speed The disadvantage is that when cutting the turning position, due to the wear of the tool, unreasonable chip speed, and insufficient cooperation between the blister and the positioning fixture (soft blister, deformation, etc.), it is easy to produce small steps, and subsequent repairs are required; It is multi-set stamping die assembly line ...

AI Technical Summary

Problems solved by technology

[0002] In the industry, three mass production methods are usually used to cut the hole position and edge of the plastic shell of the helmet, and the analysis is as follows: One is cutting with a six-axis robot milling cutter, which has the advantages of large degree of freedom in machine processing, low labor intensity of workers, and fast production speed The disadvantage is that when cutting the turning position, due to the wear of the tool, unreasonable chip speed, and insufficient cooperation between the blister and the positioning fixture (soft blister, deformation, etc.), it is easy to produce small steps, and subsequent repairs are required; It is multi-set stamping die assembly line stamping. The advantage is that it is beneficial to large-volume products. The disadvantage is that the mold cost is expensive, the mold change time is long, and there is subsequent mold maintenance costs. The third is to use jigs for manual cutting. The advantage is that the hardware cost is low

The disadvantage is that the labor intensity is too high and the production efficiency is low

[0003] The six-axis manipulator milling cutter cutting blister is currently popularized and applied in the industry, but as mentioned above, due to the softness and deformation of the blister, this method leads to insufficient cooperation with the positioning fixture, tool wear and unreasonable feed speed, and the processing time The tool and the blister generate mechanical force, and small steps are likely to be generated at the corner of the blister hole due to the vibration of the blister

In the laser cutting industry, the six-axis manipulator is only used to cut metal, because the laser source is transmitted to the laser head through the optical fiber, and the fiber is soft and suitable for layout on the six-axis manipulator; while the carbon dioxide tube laser source is not transmitted to the laser through the refraction of several mirrors. head, and the focusing mirror installed on the laser head will converge the light into one point, so it should not be used in six-axis manipulators

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