Manual automatic drilling machine

Abstract

The invention relates to a manual-automatic drilling machine which is simple in structure, convenient to operate, low in machining cost, capable of achieving integrated operation of manual and automatic, low in labor intensity and high in working efficiency and machining accuracy. The manual-automatic drilling machine comprises a working table, a main shaft box arranged above the working table, and a main shaft which can be vertically installed in the main shaft box in a rotating mode. A drill stem is arranged outside the main shaft in the main shaft box, and the drill stem can slide vertically in the axial direction through an axial feeding device. A drill bit is arranged at a free end of the drill stem, a radial locating device is arranged between the drill stem and the main shaft, the axial feeding device comprises a feeding gear sleeve and an operating rod, wherein the feeding gear sleeve is arranged outside the circumstance of the drill stem, the operating rod transversely penetrates through the main shaft box and can rotate freely in the main shaft box, a feeding gear meshed with outer circle teeth of the feeding gear sleeve is arranged on the position, corresponding to the feeding gear sleeve, of the operating rod, and two free ends of the operating rod respectively extend out of the main shaft box. One free end of the operating rod is provided with a hand wheel, and an automatic feeding driving device capable of achieving automatic feeding of the drill stem is arranged at the other free end of the operating rod.

Description

technical field [0001] The invention relates to a metal cutting machine tool, in particular to a manual automatic drilling machine. Background technique [0002] The drilling machine is a small hole processing machine tool that is small in size and easy to operate, and is usually installed on a special workbench. As known, the existing drilling machine mainly includes a workbench, a spindle box installed above the workbench and a spindle vertically installed in the spindle box rotatable by a motor. The device can slide axially up and down with a drill rod, the free end of the drill rod is provided with a drill bit for processing workpieces, and a diameter that allows the drill rod to rotate with the rotation of the spindle is also provided between the drill rod and the main shaft. A positioning device is provided on the workbench below the drill bit. The axial feeding device includes a feed gear sleeve, an operating rod and a hand wheel. The feed gear is sleeved on the dril...

AI Technical Summary

Problems solved by technology

In the above-mentioned known drilling machines, the feed of the drill pipe is manually operated, which cannot realize automatic operation. The operation is time-consuming, labor-intensive, and the production efficiency is low. Uniformity, human error is large, the drill bit at the lower end of the drill pipe is prone to move up and down during cutting, not only will reduce the machining accuracy, but also easily twist the drill bit at the end of the drilling, which greatly increases the processing cost

Images