Nozzle device of linear cutting machine

Abstract

The invention discloses a nozzle device of a linear cutting machine, which comprises a nozzle seat and a nozzle head, wherein the nozzle head has an eccentric cylindrical sleeve structure; one end of the nozzle head is arranged in the nozzle seat which is arranged in a nozzle body; the nozzle body is provided with an annular groove in which an adjustment element is arranged in a screwing way; the adjustment element slides in the annular groove and drives the nozzle seat and the nozzle head to rotate in the nozzle body; the end part of the nozzle body is fixedly provided with a nozzle end cover; and the centre of the nozzle end cover is provided with a jet-flow outlet which forms an annular cavity with the other end of the nozzle head. The nozzle device uniformly sprays a liquid flow out in a way that the nozzle head serves as the centre to cover the wire electrodes to reduce irregular vibration produced by the impact of the liquid flow on the wire electrodes so as to improve mechanical stripes on surfaces, can simultaneously meet the two states of straight-wall machining and conical machining without detaching and replacing parts, is simple to operate, improves working efficiency, reduces the dynamic flexibility of the wire electrodes because bearing distances of the wire electrodes between upper and lower idler pulleys are shortened, and improves the quality of the surfaces.

Description

technical field [0001] The invention relates to a nozzle device of a wire cutting machine tool. Background technique [0002] During the wire cutting process, the wire electrode usually completes the automatic wire threading process under the guidance of the guide device. The guide device is generally divided into an upper guide device and a lower guide device. The guide device has a spray device arranged opposite to it. Since the texture of the electrode wire is very soft, in order to ensure that the electrode wire can pass through the lower guide device accurately and without bending, in the process of the electrode wire starting from the upper guide device and reaching the lower guide device, the jet flow through the nozzle of the upper guide device forms a follow-up The liquid column that falls together with the electrode wire guides the electrode wire, and the jet flow completed by the lower guide device through the nozzle is mainly used to cool the electrode wire and t...

AI Technical Summary

Problems solved by technology

[0003] During the use of existing nozzles, the liquid column often cannot flow down well, and the liquid droplets will splash and affect the normal progress of the wire threading process, or the liquid flow will impact the electrode wire and cause the electrode wire to vibrate irregularly, affecting the workpiece. Processing surface quality; In addition, in online cutting, when switching between taper processing and straight wall processing, it is usually necessary to replace the corresponding parts to meet the two processing states, which reduces the processing efficiency, is time-consuming and laborious, and is not suitable for automated production

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