CN108437115A - A kind of timber Special drill drill bit - Google Patents
A kind of timber Special drill drill bit Download PDFInfo
- Publication number
- CN108437115A CN108437115A CN201810632644.0A CN201810632644A CN108437115A CN 108437115 A CN108437115 A CN 108437115A CN 201810632644 A CN201810632644 A CN 201810632644A CN 108437115 A CN108437115 A CN 108437115A
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- cutting
- arc groove
- drill
- shaped pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G15/00—Boring or turning tools; Augers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of timber Special drill drill bit, innovative point is：The cutting head includes three centered on drill shank axis, equidistant radially distributed cutting edge；Tapping screw thread slot is provided on the side of each cutting edge upper end, described be provided on each cutting edge side of tapping screw thread slot lower end is additionally provided with arc groove, and the arc groove includes the lateral arc groove set gradually from inside to outside and apex point arc groove；The cutting edge one side of the arc groove lower end is equipped with a S-shaped pair bite, and the S-shaped pair bite stagger setting on each cutting edge.The advantage of the invention is that：It is three cutting edges that the present invention, which changes double cutting edges, and each cutting edge uses the structure type combined with S-shaped pair bite with tapping screw thread slot main cutting edge, so that cutting is light, simultaneously, it can guarantee uniform force in cutting process, reduce cutting resistance, in addition, it is cut using double cutting structure forms, stock-removing efficiency can be greatly improved.
Description
Technical field
The invention belongs to wood working tool more particularly to a kind of carpenter drilling target drills.
Background technology
Brill, drilling machine, the cutter on drilling machine, can cause hole on workpiece or rock.Xu Chi《Goldbach's Conjecture's stone
Oil head》：" in 1956, China's bored material was somewhat nervous, and drill bit is not enough." course of work dig pit operation when, drill bit
It rotates, while moving axially with vertical shaft.Soil is cut under the torque and responsive to axial force of drill bit, in squeezing for working-blade
It is raveled under pressure and centrifugation force effect, forms native stream and press to crater wall, while along page elevator to earth's surface.When native stream moves to Wu Keng
When at wall blocking, since centrifugation force effect hack is thrown around hole, process of digging pit is completed.
Be suitable for the various timber of drilling in the prior art mainly has two kinds of common fluted drill and flat-wing driller, common fluted drill
Only it is made of drill body and drillstock, the head of drill body is taper, so the hole bored in actual use is not bright and clean enough, meanwhile, by
It is big in cutting resistance so that cutting is not light enough, and efficiency is low.
Therefore, a kind of cutting timber Special drill drill bit that is light and can improving stock-removing efficiency of research and development is to be highly desirable
's.
Invention content
It is special that the technical problem to be solved in the present invention is to provide a kind of cutting timber that is light and can improving stock-removing efficiency
Drill.
In order to solve the above technical problems, the present invention provides following technical schemes：
A kind of timber Special drill drill bit, including drillstock and cutting head, innovative point are：The cutting head includes three
Centered on drill shank axis, equidistant radially distributed cutting edge；It is provided with self tapping spiral shell on the side of each cutting edge upper end
Groove, described be provided on each cutting edge side of tapping screw thread slot lower end are additionally provided with arc groove, and the arc groove includes in
The lateral arc groove and apex point arc groove set gradually outward；The cutting edge one side of the arc groove lower end is equipped with a S-shaped
Secondary bite, and the S-shaped pair bite stagger setting on each cutting edge.
Further, the S-shaped pair bite and cutting edge are monolithic molding, and S-shaped pair bite blade is cut with described
It is 30~45 ° to cut sword level angle.
Beneficial effects of the present invention are as follows：
(1) timber Special drill drill bit of the present invention, it is three cutting edges to change double cutting edges, and each cutting edge uses band self tapping spiral shell
The structure type that groove main cutting edge is combined with S-shaped pair bite so that cutting it is light, meanwhile, can guarantee in cutting process by
Power is uniform, reduces cutting resistance, in addition, using double cutting structure form cuttings, can greatly improve stock-removing efficiency；
(2) timber Special drill drill bit of the present invention, S-shaped pair bite and cutting edge are monolithic molding, it is ensured that the two it
Between binding strength, ensure that it is excessive to be unlikely to stress for S-shaped pair bite in cutting process, and fall, and then be effectively ensured and cut
Cutting can be smoothed out.
Description of the drawings
Fig. 1 is the structural schematic diagram of timber Special drill drill bit of the present invention.
Specific implementation mode
To keep the goal of the invention, technical solution and advantage of the present invention clearer, below in conjunction with attached drawing to the present invention's
Embodiment is described in further detail.
Embodiment
The present embodiment timber Special drill drill bit, as shown in Figure 1, including drillstock 1 and cutting head 2, cutting head 2 includes three
Centered on drill shank axis, equidistant radially distributed cutting edge 21；It is provided on the side of 21 upper end of each cutting edge certainly
Tapping slot 211 is provided on each cutting edge side of 211 lower end of tapping screw thread slot and is additionally provided with arc groove 212, and arc groove 212
Including the lateral arc groove set gradually from inside to outside and apex point arc groove；On 21 one side of cutting edge of 212 lower end of arc groove
213 stagger setting of S-shaped pair bite equipped with a S-shaped pair bite 213, and on each cutting edge 21.
In the present embodiment, in order to ensure S-shaped pair bite 213 and the binding strength of cutting edge 21 between the two, ensure to cut
It is excessive to be unlikely to stress for S-shaped pair bite 213 during cutting, and falls, and then cutting has been effectively ensured can be smoothed out, S
Shape pair bite 213 and cutting edge 21 are monolithic molding, and S-shaped pair bite blade and 21 level angle of cutting edge be 30~
45°。
The present embodiment timber Special drill drill bit, it is three cutting edges to change double cutting edges, and each cutting edge 21 is using band self tapping
The structure type that thread groove main cutting edge is combined with S-shaped pair bite so that cutting is light, meanwhile, it can guarantee in cutting process
Uniform force reduces cutting resistance, in addition, using double cutting structure form cuttings, can greatly improve stock-removing efficiency.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
Without the technical solution that creative work can be realized on the basis of the above embodiments, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (2)
1. a kind of timber Special drill drill bit, including drillstock and cutting head, it is characterised in that：The cutting head includes three to bore
Centered on arbor line, equidistant radially distributed cutting edge；It is provided with tapping screw thread slot on the side of each cutting edge upper end,
Described be provided on each cutting edge side of tapping screw thread slot lower end is additionally provided with arc groove, and the arc groove include from inside to outside according to
The lateral arc groove and apex point arc groove of secondary setting；The cutting edge one side of the arc groove lower end is cut equipped with a S-shaped pair
Knife, and the S-shaped pair bite stagger setting on each cutting edge.
2. timber Special drill drill bit according to claim 1, it is characterised in that：The S-shaped pair bite and cutting edge
For monolithic molding, and S-shaped pair bite blade and the cutting edge level angle are 30~45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810632644.0A CN108437115A (en) | 2018-06-17 | 2018-06-17 | A kind of timber Special drill drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810632644.0A CN108437115A (en) | 2018-06-17 | 2018-06-17 | A kind of timber Special drill drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108437115A true CN108437115A (en) | 2018-08-24 |
Family
ID=63206477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810632644.0A Withdrawn CN108437115A (en) | 2018-06-17 | 2018-06-17 | A kind of timber Special drill drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108437115A (en) |
-
2018
- 2018-06-17 CN CN201810632644.0A patent/CN108437115A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
|
| WW01 | Invention patent application withdrawn after publication |