Device and method for cutting super-thick material by swinging abrasive water jet nozzle

Abstract

According to the device and method for cutting the super-thick material through the abrasive water jet nozzle in the swinging mode, a swinging air cylinder swings back and forth at a certain angle and frequency, then the nozzle is driven to conduct swinging cutting, the swinging direction of the nozzle is perpendicular to the transverse moving direction, a wide seam is cut, and the nozzle can penetrate into a workpiece to conduct subsequent multiple times of cutting. And when half of the depth of the workpiece is cut, the motor is controlled to rotate by 180 degrees, that is, the workpiece rotates by 180 degrees, the swing cutting process is repeated, separation of the workpiece is finally achieved, and cutting of the super-thick material is completed. The device is simple in structure, the workpiece overturning assembly can achieve 180-degree overturning of a workpiece, under the condition that cutting parameters are the same, the cutting depth is expanded to be two times of the original cutting depth, according to a nozzle swinging cutting method, the swinging direction is perpendicular to the transverse moving direction, the width of a cutting seam is larger than the diameter of a nozzle, and therefore the nozzle can stretch into the workpiece to achieve multi-channel cutting, and the cutting efficiency is improved. Compared with a common cutting method, the method has the advantage that the cutting capacity of the abrasive water jet is greatly improved.

Description

technical field [0001] The invention relates to the technical field of abrasive water jets, in particular to an abrasive water jet nozzle swing cutting device and method for ultra-thick materials. Background technique [0002] The principle of abrasive water jet cutting is to use tens to hundreds of megapas of abrasive water to pass through a specially designed nozzle with a very small aperture, and spray abrasive water jets at a high speed of hundreds of meters per second to impact and cut the surface of the workpiece to achieve workpiece surface cutting. cutting. Compared with traditional contact processing methods, abrasive water jet cutting has the advantages of no thermal stress, strong versatility, and environmental protection. [0003] When the abrasive water jet is used to cut the workpiece, the cutting ability of the abrasive water jet is limited, so there is a situation that the workpiece cannot be cut through in one cut. Because the kerf width obtained by abrasi...

AI Technical Summary

Problems solved by technology

[0003] When using abrasive water jets to cut workpieces, the cutting ability of abrasive water jets is limited, so there are cases where the workpiece cannot be cut through in one cut

Since the kerf width obtained by abrasive water jet cutting is much smaller than the diameter of the nozzle, the nozzle cannot go deep into the workpiece to complete the cutting. Therefore, a method of multi-pass cutting is proposed in some patent documents. Patent document CN105081587A discloses a water jet laser Composite multi-pass ceramic cutting method, through multiple passes to complete the separation of ceramic materials

Images