Special copper deburring drill bit

Abstract

The invention relates to a special copper deburring drill bit which comprises a drill bit body and a drill shank, wherein the drill bit body is fixedly connected with the drill shank; the drill bit body is tapered; the tapered drill bit body comprises a drilling cutter and a drilling part; the drilling cutter and the drilling part are integrally formed; the drilling cutter is tapered, and the tapered angle is 30-60 degrees; the drilling part is concave and arc-shaped, and the minimum diameter of the arc-shaped concave area is 5-8 cm; the drill shank is a cylindrical drill shank with gradually-reduced diameters from the front end to the tail end; and the front end of the drill shank is fixedly connected with the drill bit body. According to the special copper deburring drill bit, deburring can be carried out effectively, and the deburring effect is excellent; the drilling part is concave and arc-shaped, and the minimum diameter of the arc-shaped concave area is 5-8 cm; problems of deflection and damage of the drill bit body can be effectively prevented; and the drill shank is a cylindrical drill shank with gradually-reduced diameters from the front end to the tail end, and the front end of the drill shank is fixedly connected with the drill bit body, so that burrs of a hole opening can be removed during punching, and the application range of the drill bit is expanded.

Description

technical field [0001] The invention relates to a special drill for copper deburring, which belongs to the field of drill equipment. Background technique [0002] The drill bit is an essential tool for breaking rocks when drilling. There are mainly three types of roller cone bits, diamond drill bits and scraper bits. Among them, ①Roller cone bits are composed of bit body, claws, roller cones, bearings, water eyes, etc. According to the structure of the cone, it is divided into two types: milling tooth type and insert type. According to the structure of the bearing, it is divided into two types: sealed (or unsealed) rolling bearing and sealed (or unsealed) sliding bearing. The cone bit is suitable for drilling various formations. most extensive. ②Diamond drill bits are initially only used in hard formations, but their varieties and scope of use are expanding day by day. Although the price of the drill bits is high, they have a long working life. If the selection is reasona...

AI Technical Summary

Problems solved by technology

②Diamond drill bits are initially only used in hard formations, but their varieties and scope of use are expanding day by day. Although the price of the drill bits is high, they have a long working life. If the selection is reasonable, better economic results can be achieved; ③Scraper drill bits have a simple structure , easy to manufacture, fast drilling speed in soft formations, but large torque when drilling, easy to damage

The drill bit is composed of a tool seat, a knife handle, and a cutter head. The structure of the existing drill bit is simple, and the drilling capacity is limited for materials with high hardness.

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