The invention discloses a high-speed
numerical control gantry vertical and horizontal drilling and milling composite
machine tool, which relates to the technical field of
machine tools, and comprises a horizontal
machine tool, a vertical
machine tool arranged in the middle of the horizontal
machine tool, a connecting end arranged at the output end of the vertical
machine tool, and a
twist drill movably clamped at the bottom of the connecting end, the
twist drill further comprises a first oil cavity arranged outside the
twist drill in a sleeving mode. By means of the drilling and milling combined machine tool, the problem that when an existing high-speed
numerical control gantry vertical and horizontal drilling and milling combined machine tool drills a tubular workpiece or a workpiece with a cavity, most chippings can enter the cavity in the workpiece due to the structural characteristics of a spiral groove after a
drill bit drills through is solved. The chippings are distributed dispersedly, easily clamped in complex and narrow corner gaps of a cavity and difficult to clean, special tools such as a long and thin
brush and a high-pressure air gun are needed, a large amount of manpower and time are consumed, and the production efficiency is reduced. And in addition, scraps accumulated in the cavity may scratch and abrade the inner surface of the workpiece, the
machining quality and precision are affected, and the performance of the workpiece is damaged due to oxidation and
corrosion if the scraps are left for a long time.