A kind of inner cooling drill shaft device based on turning-milling-drilling compound machining center

Abstract

The application relates to the technical field of cold drill shafts, in particular to an internal cooling drill shaft device based on a turning-milling-drilling composite machining center, which comprises a machining equipment body, the machining equipment body is composed of a machine base, two linear modules one, two linear modules two, a machining table and a machine frame. The internal cooling drill shaft device based on the turning-milling-drilling composite machining center is provided with cooling liquid valves and maintenance liquid valves, the switching of two liquid paths is realized through the movement and pressure change of a piston, the double-valve and double-liquid-path switching design enables the equipment to automatically switch liquid supply according to different working states, in the cooling mode, a third return spring is compressed by a guide wheel to store energy; in the instant of switching to the maintenance mode, the energy stored by the spring is instantaneously released, the piston moves, and a high-pressure pulse liquid flow is generated through the joint action, so that the pressurization flushing effect is realized, and the cleaning degree and applicability of the equipment are improved, and the problem of cooling channel blockage is effectively solved.

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