CN204621168U - A kind of powerful drill drill bit - Google Patents

Abstract

The utility model discloses a kind of powerful drill drill bit, main body is drill body, described drill body is made up of drill bit and drill body global formation, its innovative point is: the structure of described drill bit be the Rotary-table that increases progressively of level Four successively centrally line arrangement form, the center line of drill bit is provided with through hole in the axial direction, be provided with cannelure in the end of drill bit, the other end of through hole is communicated with cannelure.The utility model adopts level Four rotary head boring, and integrate boring, repair hole wall, one-shot forming realizes perforate, and effectively keeps the smoothness of hole wall.

Description

A kind of powerful drill drill bit

Technical field

The utility model relates to a kind of drill bit, specifically a kind of powerful drill drill bit.

Background technology

Drill bit, as the indispensable instrument of boring, is engineer's common tool; The form of drill bit is more, and purposes is comparatively wide, and the pass having boring is also more.Because boring is according to the requirement of pass, the requirement of sheet material, there is different drill bit design requirements.Various informative.At present, although market drill bit is more, there are no powerful drill drill bit of the present utility model.

Utility model content

The utility model mainly provides a kind of powerful drill drill bit, solves perforate speed and perforate, repaiies the difficult problem of hole unification.

In order to solve above technical problem, the utility model provides following scheme:

A kind of powerful drill drill bit, main body is drill body, and described drill body is made up of drill bit and drill body global formation, and its innovative point is:

The structure of described drill bit be the Rotary-table that increases progressively of level Four successively centrally line arrangement form, the center line of drill bit is provided with through hole in the axial direction, is provided with cannelure in the end of drill bit, the other end of through hole is communicated with cannelure.

Described drill body is two-stage staged cylinder; One-level cylinder is circumferentially washed fluted wherein, this cylinder is divided into two sections, in every section, has elongated hole.

Further, the transition face between the Rotary-table that increases progressively of level Four is the conical surface.

The beneficial effects of the utility model are: the utility model adopts level Four rotary head boring, and integrate boring, repair hole wall, one-shot forming realizes perforate, and effectively keeps the smoothness of hole wall.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

A kind of powerful drill drill bit of the present utility model, structure as shown in the figure: main body is drill body, and drill body is made up of drill bit 1 and drill body 2 global formation.

The structure of concrete structure as: drill bit 1 be the Rotary-table that increases progressively of level Four successively centrally line arrangement form, Rotary-table is called Rotary-table 1a Rotary-table 1b Rotary-table 1c Rotary-table 1d, the transition face between the Rotary-table that level Four increases progressively is the conical surface 6.The center line of drill bit 1 is provided with through hole 7 in the axial direction, is provided with cannelure 5 in the end of drill bit 1, the other end of through hole 4 is communicated with cannelure 5.This structure can effective strong-force drilling, and can realize boring, repaiies hole one-shot forming.

Drill body 2 of the present utility model, for two-stage diameter is than being 1:2 staged cylinder, is respectively cylinder 2a, cylinder 2b; Cylinder 2a circumferentially washes fluted 2c, this cylinder is divided into two sections, in every section, has elongated hole, be respectively elongated hole 3 and elongated hole 4.The design of the design's elongated hole is in order to coordinate the installing hole of the mounting design of drill bit; Drill body 2 is for two-stage diameter is than for 1:2 staged cylinder design is the cost control of actuarial when in proof strength and design.

Operation principle: adopt level Four rotary head boring, integrate boring, repair hole wall, one-shot forming realizes perforate, and effectively keeps the smoothness of hole wall.

Claims (2)

1. a powerful drill drill bit, main body is drill body, and described drill body is made up of drill bit and drill body global formation, it is characterized in that:

The structure of described drill bit be the Rotary-table that increases progressively of level Four successively centrally line arrangement form, the center line of drill bit is provided with through hole in the axial direction, is provided with cannelure in the end of drill bit, the other end of through hole is communicated with cannelure;

Described drill body is two-stage staged cylinder; One-level cylinder is circumferentially washed fluted wherein, this cylinder is divided into two sections, in every section, has elongated hole.

2. a kind of powerful drill drill bit according to claim 1, is characterized in that: the transition face between the Rotary-table that level Four increases progressively is the conical surface.