Inclined drill bit with suction device

Abstract

The invention relates to an inclined drill bit with a suction device. The inclined drill bit comprises a twist drill, a central drill tip is ground at the top end of the twist drill, left and right outer edges are formed between the central drill tip and the twist drill and used for cutting a workpiece, an L-shaped suction channel from top to bottom is arranged inside the twist drill, a suction hole at the lower end of the L-shaped suction channel is arranged on the chip groove of the twist drill, and the upper end of the L-shaped suction channel is connected with the suction device after penetrating through the twist drill. The suction device is of a pump pipe. The inclined drill bit is firstly drilled into the workpiece by the central drill tip so as to play a role in centering, and then the outer edges are used for cutting, thus reducing the radial cutting component force of the edge at the outer side, guaranteeing the quality of drill holes, and avoiding damage to the workpiece and the drill bit by sucking the chips by virtue of the suction device in time. The inclined drill bit is simple in structure and convenient to manufacture, ensures the quality of drill holes as well as the quality of the workpiece and avoids damage to the drill bit.

Description

technical field [0001] The invention relates to a drill bit, in particular to an inclined plane drill bit with a suction device. Background technique [0002] When drilling on an inclined surface, if a twist drill with general geometry is used, the axis of the drill bit will be deflected under the action of the radial resistance of the cutting edge of the drill bit, and it is difficult to ensure the correct position of the hole. To drill into the workpiece, there will be some small debris that is not easy to be removed through the flute and left on the workpiece, which will not only affect the quality of the workpiece, but also cause damage to the drill bit. Contents of the invention [0003] In order to solve the above-mentioned problems, the present invention provides a bevel drill bit which ensures the drilling quality. [0004] In order to achieve the above object, the present invention is achieved through the following technical solutions: [0005] T...

AI Technical Summary

Problems solved by technology

[0002] When drilling on an inclined surface, if a twist drill with general geometry is used, the axis of the drill bit will be deflected under the action of the radial resistance of the cutting edge of the drill bit, and it is difficult to ensure the correct position of the hole. To drill into the workpiece, there will be some small chips that are not easy to be removed through the flute and left on the workpiece, which will not only affect the quality of the workpiece, but also cause damage to the drill bit

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