CN209598278U

CN209598278U - A kind of spiral bit

Info

Publication number: CN209598278U
Application number: CN201822141434.XU
Authority: CN
Inventors: 石秀兵
Original assignee: Danyang Surui Tools Co Ltd
Current assignee: Danyang Surui Tools Co Ltd
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2019-11-08
Anticipated expiration: 2028-12-20

Abstract

A kind of spiral bit, including drillstock, drill body, it is characterized by: setting on the drillstock, there are three planes, and 60 degree each other of the angle of three interplanars, the section of three planes composition is in equilateral triangle, the center of equilateral triangle and the central axis of drill body coincide, and the drill body includes drill bit and the spiral helicine chip space and smooth section that are connected with drill bit, are connected between the drillstock and the drill body by removably.Its structure is simple, and rationally, it is firm that clamping facilitates for design, is not easy to loosen, it is a kind of spiral bit of ideal type that drilling efficiency is high and drill bit is detachable and interchangeable.

Description

A kind of spiral bit

Technical field

The utility model relates to a kind of spiral bit, particularly relate to set that there are three planes on a kind of bit sub face , and the drill bit that the angle of three interplanars is 60 degree, belong to tool-class.

Background technique

Currently, all variation with rapid changepl. never-ending changes and improvements is occurring for all trades and professions, so with the fast development of Chinese national economy And tool, that is, drill bit for drilling is but ignored by people.Spiral bit is long-term in mechanical industry and relevant industries, a large amount of It uses, is a kind of boring bar tool having a large capacity and a wide range, traditional spiral bit is by drill bit, the bar portion of drill bit, cutting edge, chip pocket etc. It is integral, the utilization rate of drill bit is high in total, and the cutting edge of drill bit is easily damaged, and the bar portion of drill bit is shorter, uses Get up with certain limitation, and drill shank is smooth cylinder, be easy to cause the phenomenon that clamping not tight drill slipping, is influenced It also will cause the case where drill bit is scrapped while working efficiency and quality, therefore, being badly in need of one kind in the market can solve above ask The spiral bit of topic.The purpose of this utility model is that being related to a kind of clamp facilitates firm and steady three bone knobs fried dough twist It bores, and the Novel twist drill that drill bit is detachable and interchangeable, with overcome the deficiencies in the prior art.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of intensity height, long service life, Clamp firm fluted drill.

To achieve the above object, the utility model provides following technical solution:

A kind of spiral bit, including drillstock and drill body, set that there are three planes, and the angle of three interplanars on the drillstock 60 degree each other, the section of three planes composition is in equilateral triangle, and the center of equilateral triangle and the central axis of drill body are mutually be overlapped It closes, the drill body includes drill bit and the spiral helicine chip space and smooth section that are connected with drill bit, the drillstock and the drill body Between pass through removably connect.

Further improvement of the utility model is: the drill bit is fully grinding drill bit, and the conical cone angle of the drill bit is 125 ~ 135 degree.

Further improvement of the utility model is: the drill bit includes two cutting edges and apex point.

Further improvement of the utility model is: the chip space is arranged between the drill bit and the smooth section.

Further improvement of the utility model is: the drillstock is identical with the cross-sectional diameter of the drill body, and the two Central axis be overlapped.

Further improvement of the utility model is: having the abrasive particle of protrusion on the drillstock.

Further improvement of the utility model is: the drill body helical angle size is 20 ~ 25 degree.

Further improvement of the utility model is: the outermost diameter of the drill body is 1.68 ~ 1.75 millimeters.

Further improvement of the utility model is: the drillstock, which is connected through a screw thread, to be fixed in the drill body, the brill Screw is additionally provided between handle and drill body to fix,

In conclusion the utility model provides, a kind of structure is simple, and rationally, it is firm that clamping facilitates for design, is not easy to loosen, Drilling efficiency is high and drill bit is detachable and interchangeable, is a kind of Novel auger bit of ideal type.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of the utility model drillstock cross section.

Wherein: 1- drillstock, 2- drill body, 3- drill bit, 4- chip space, 5- smooth section.

Specific embodiment

In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.

The technical solution of the utility model is:

A kind of spiral bit, including drillstock 1 and drill body 2 are set on the drillstock 1 there are three plane, and three interplanars 60 degree each other of angle, the section of three planes composition is in equilateral triangle, the center of equilateral triangle and the central axis of drill body 2 It coincides, the drill body 2 includes drill bit 3 and the spiral helicine chip space 4 and smooth section 5 that are connected with drill bit 3, the drillstock 1 It is connected between the drill body 2 by removably, the drill bit 3 is fully grinding drill bit, and the conical cone angle of the drill bit 3 is 135 degree, the drill bit 3 includes two cutting edges and apex point, the chip space 4 setting the drill bit 3 and the smooth section 5 it Between, the drillstock 1 is identical with the cross-sectional diameter of the drill body 2, and the central axis of the two is overlapped, and has on the drillstock 1 convex The abrasive particle risen, the 2 helical angle size of drill body are 25 degree, and the outermost diameter of the drill body 2 is 1.75 millimeters, the brill Handle 1, which is connected through a screw thread, to be fixed in the drill body 2, is additionally provided with screw between the drillstock 1 and drill body 2 and is fixed, realizes the brill First 3 with the connection of the drill body 2, have the advantages that the advantages of easy to connect and connection effect is preferable, facilitates the replacement of drill bit, when When the drill bit 3 damages, drill body 2 is directly replaced, re-uses the drillstock 1, saves cost.

The beneficial effects of the utility model are: its structure is simple, design rationally, compared with prior art, can the side of playing Just chip removal and increase drill bit service efficiency and the structure by being fixedly welded, which play, increases drillstock and drill body linking intensity Effect, so that spiral bit is more stable during the work time.

It should be understood by those skilled in the art that the present utility model is not limited to the above embodiments, above-described embodiment and Only illustrate the principles of the present invention described in specification, on the premise of not departing from the spirit and scope of the utility model, The utility model also has various changes and improvements, these changes and improvements both fall within the scope of the claimed invention It is interior.The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. a kind of spiral bit, it is characterised in that: including drillstock and drill body, set on the drillstock there are three plane, and three flat The section of 60 degree each other of angle between face, three planes composition is in equilateral triangle, in the center and drill body of equilateral triangle Mandrel line coincides, and the drill body includes drill bit and the spiral helicine chip space and smooth section that are connected with drill bit, the drillstock It is connected between the drill body by removably.

2. a kind of spiral bit according to claim 1, it is characterised in that: the drill bit is fully grinding drill bit, the drill bit Conical cone angle be 125 ~ 135 degree.

3. a kind of spiral bit according to claim 1, it is characterised in that: the drill bit includes two cutting edges and brill Point.

4. a kind of spiral bit according to claim 1, it is characterised in that: the chip space is arranged in the drill bit and institute It states between smooth section.

5. a kind of spiral bit according to claim 1, it is characterised in that: the cross section of the drillstock and the drill body is straight Diameter is identical, and the central axis of the two is overlapped.

6. a kind of spiral bit according to claim 1, it is characterised in that: there is the abrasive particle of protrusion on the drillstock.

7. a kind of spiral bit according to claim 1, it is characterised in that: the drill body helical angle size is 20 ~ 25 degree.

8. a kind of spiral bit according to claim 1, it is characterised in that: the outermost diameter of the drill body be 1.68 ~ 1.75 millimeter.

9. a kind of spiral bit according to claim 1, it is characterised in that: the drillstock, which is connected through a screw thread, is fixed on institute It states in drill body, is additionally provided with screw between the drillstock and drill body and fixes.