Drilling device

Abstract

The invention relates to a drilling device which comprises a base, a support device, a drill bit device, a motor and a workpiece support. The support device is fixed on the base. The motor is fixed on the support device. The output shaft of the motor is connected with the drill bit device through a chuck. The workpiece support is fixed on the upper surface of the base. The circumferential surface of one end of a drill bit body is a conical surface. The circumferential surface of the drill bit body is provided with spherical grooves. Radial holes penetrating to a central hole are formed in the outer periphery of a tool handle. Each radial hole is a stepped hole with two small ends and one large middle. A positioning pin and a spring are slidably fitted in each radial hole. Each spring sleeves the corresponding positioning pin. The inner ring of each spring is fixedly connected with the circumferential surface of the corresponding positioning pin. Two ends of each spring are limited by the two stepped faces of the corresponding stepped hole. The end, facing the central hole, of each positioning hole is a ball head. After the drill bit body is inserted into the central hole, the ball heads of the positioning pins are inserted into the spherical grooves of the drill bit body. The drilling device has the advantage that the drill bit can be locked fast.

Description

technical field [0001] The invention relates to a drilling device. Background technique [0002] Drilling machine refers to a machine tool that mainly uses a drill bit to process holes in a workpiece. Generally, the rotation of the drill bit is the main movement, and the axial movement of the drill bit is the feed movement. The drilling machine has a simple structure and relatively high machining accuracy. It can drill through holes and blind holes, replace special tools, expand, countersink, ream or tap. During the machining process, the workpiece does not move, let the tool move, align the center of the tool with the center of the hole, and make the tool rotate (main movement). The characteristic of the drilling machine is that the workpiece is fixed and the tool rotates. [0003] There are many ways to control the drill on the current drilling machine, but most of them have problems such as the fixing and locking of the drill is not flexible enough, and the movement an...

AI Technical Summary

Problems solved by technology

[0003] There are many ways to control the drill bit on the current drilling machine, but most of them have problems such as the fixation and locking of the drill bit is not flexible enough, and the movement and positioning are complicated and inaccurate.

In addition, the existing drilling machines use manual control to control the axial feed of the drill bit. Because the control force of the manual feed method is not easy to control, the feed speed is sometimes fast and sometimes slow, and the quality of the drilled holes Difference

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