CN208542989U - A kind of variable core diameter becomes augers - Google Patents

Abstract

The utility model discloses a kind of variable core diameters, become augers, including drill body, the drill body is by drillstock, the frustum of a cone and bit body are composed, described drillstock one end is provided with the frustum of a cone, the vertical center line of the frustum of a cone and the vertical center line of drillstock coincide, the frustum of a cone other end is provided with bit body, the vertical center line of the bit body and the vertical center line of the frustum of a cone coincide, the bit body is by front cutting edge, chip space and rear knife edge are composed, the front cutting edge and with rear knife edge spiralization chip space, the front end of rear knife edge is arranged in the front cutting edge.The utility model has sharp cutting and heat-resisting ability by a series of setting of structures, and drill bit is more wear resistant, and double cutting edge cooperates lower cutting process more brisk, and bit life is longer.

Description

A kind of variable core diameter becomes augers

Technical field

The utility model relates to bit technique field, specifically a kind of variable core diameter becomes augers.

Background technique

Drill bit is the essential tool for processing drilling part, mostly uses single blade greatly on existing drill bit cutter head, due to Single blade drills to part, increase drill bit temperature in intensive work too fast, drill bit is easy to appear damage, adds The part disqualification rate that work comes out is promoted, and therefore, is unsatisfactory for existing demand.

Utility model content

The purpose of this utility model is to provide a kind of variable core diameter, become augers, to solve the problems of the prior art.

To achieve the above object, the utility model provides the following technical solutions: a kind of variable core diameter becomes augers, including Drill body, the drill body are composed of drillstock, the frustum of a cone and bit body, and described drillstock one end is provided with circular cone Platform, the vertical center line of the frustum of a cone and the vertical center line of drillstock coincide, and the frustum of a cone other end is provided with cutter head Ontology, the vertical center line of the bit body and the vertical center line of the frustum of a cone coincide, the bit body by front cutting edge, Chip space and rear knife edge are composed, the front cutting edge and with rear knife edge spiralization chip space, the front cutting edge is arranged rear The front end of blade.

Preferably, described drillstock one end is provided with chamfering b.

Preferably, the angle a formed between the frustum of a cone and drillstock is 15 °.

Preferably, ALTIN coating is provided on the drill body outer surface.

Compared with prior art, the utility model has the beneficial effects that by bit body by front cutting edge and rear knife edge It is used cooperatively, sharp front cutting edge and rear knife edge cutting and the intensity and reason of drill body are arranged in pairs or groups, the circle of front cutting edge and rear knife edge Arc relief angle makes drill bit more wear resistant, and the plane relief angle of front cutting edge and rear knife edge makes drill bit sharper strong, cutting process under double cooperations More brisk, bit life is longer, and the crossing center of front cutting edge and rear knife edge makes drilling outstanding, passes through front cutting edge and rear knife edge The waste material of drilling is discharged in the chip space of spiralization, and drill body outer surface is using advanced technology and equipment institute, Japan The ALTIN coating aluminium containing high ingredient done not only has high temperature oxidative resistance (800 DEG C), but also can dry type or high speed item again Optimal performance is played to machining tool under part.The utility model has sharp cutting and resistance to by a series of setting of structures High temperature capabilities, drill bit is more wear resistant, and double cutting edge cooperates lower cutting process more brisk, and bit life is longer.

Detailed description of the invention

Fig. 1 is a kind of variable core diameter of the utility model, the structural schematic diagram for becoming augers.

Fig. 2 is enlarged structure schematic diagram at the A of the utility model.

Fig. 3 is the structural schematic diagram at another visual angle of the utility model.

In figure: 1, the frustum of a cone；2, drillstock；3, drill body；4, bit body；5, front cutting edge；6, chip space；7, rear knife Sword.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please referring to Fig. 1~3, in the utility model embodiment, a kind of variable core diameter becomes augers, including drill body 3, Drill body 3 is composed of drillstock 2, the frustum of a cone 1 and bit body 4, and 2 one end of drillstock is provided with the frustum of a cone 1, the frustum of a cone 1 The vertical center line of vertical center line and drillstock 2 coincides, and 1 other end of the frustum of a cone is provided with bit body 4, bit body 4 The vertical center line of vertical center line and the frustum of a cone 1 coincides, and bit body 4 is combined by front cutting edge 5, chip space 6 and rear knife edge 7 It forms, by being used cooperatively by front cutting edge 5 and rear knife edge 7 of bit body 4, sharp front cutting edge 5 and the cutting of rear knife edge 7 and bores The circular arc relief angle of the intensity and reason collocation of head ontology 3, front cutting edge 5 and rear knife edge 7 makes drill bit more wear resistant, front cutting edge 5 and rear knife edge 7 Plane relief angle make drill bit sharper strong, cutting process is more brisk under double cooperations, and bit life is longer, front cutting edge 5 and rear knife The crossing center of sword 7 allow drilling it is outstanding, front cutting edge 5 and with 7 spiralization chip space 6 of rear knife edge, by front cutting edge 5 and after The waste material of 6 pairs of chip space drillings of 7 spiralization of blade is discharged, and the front end of rear knife edge 7, drillstock 2 one is arranged in front cutting edge 5 End is provided with chamfering b, and the angle a formed between the frustum of a cone 1 and drillstock 2 is 15 °, and drill body is provided on 3 outer surface ALTIN coating, the ALTIN coating aluminium containing high ingredient that 3 outer wall coating of drill body is done using the advanced technology and equipment of Japan, Not only there are 800 DEG C of high temperature oxidative resistance, but also optimal property can be played to machining tool under dry type or high-speed condition again Energy.

The working principle of the utility model is: being used cooperatively by front cutting edge 5 and rear knife edge 7 by bit body 4, sharp Front cutting edge 5 and the cutting of rear knife edge 7 and the intensity of drill body 3 and reason collocation, the circular arc relief angle of front cutting edge 5 and rear knife edge 7 allow Drill bit is more wear resistant, and the plane relief angle of front cutting edge 5 and rear knife edge 7 makes drill bit sharper strong, and cutting process is more brisk under double cooperations, Bit life is longer, and the crossing center of front cutting edge 5 and rear knife edge 7 makes drilling outstanding, passes through 7 spiral shell of front cutting edge 5 and rear knife edge The waste materials for 6 pairs of the chip space drillings that rotation is formed are discharged, on 3 outer surface of drill body coating using the advanced technology of Japan and The ALTIN coating that equipment is done, not only has 800 DEG C of high temperature oxidative resistance, but also can be right under dry type or high-speed condition again Machining tool plays optimal performance.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (4)

1. a kind of variable core diameter becomes augers, including drill body (3), which is characterized in that the drill body (3) is by drillstock (2), the frustum of a cone (1) and bit body (4) are composed, and described drillstock (2) one end is provided with the frustum of a cone (1), the frustum of a cone (1) vertical center line and the vertical center line of drillstock (2) coincide, and the frustum of a cone (1) other end is provided with bit body (4), the vertical center line of the vertical center line and the frustum of a cone (1) of the bit body (4) coincides, the bit body (4) It is composed of front cutting edge (5), chip space (6) and rear knife edge (7), the front cutting edge (5) and in a row with rear knife edge (7) spiral shape It considers to be worth doing slot (6), front end of front cutting edge (5) setting in rear knife edge (7).

2. a kind of variable core diameter according to claim 1 becomes augers, which is characterized in that drillstock (2) one end setting There is chamfering b.

3. a kind of variable core diameter according to claim 1 becomes augers, which is characterized in that the frustum of a cone (1) and drillstock (2) the angle a formed between is 15 °.

4. a kind of variable core diameter according to claim 1 becomes augers, which is characterized in that drill body (3) appearance ALTIN coating is provided on face.