CN201579853U - Butterfly-shaped woodworking flat drill - Google Patents
Butterfly-shaped woodworking flat drill Download PDFInfo
- Publication number
- CN201579853U CN201579853U CN2009202145620U CN200920214562U CN201579853U CN 201579853 U CN201579853 U CN 201579853U CN 2009202145620 U CN2009202145620 U CN 2009202145620U CN 200920214562 U CN200920214562 U CN 200920214562U CN 201579853 U CN201579853 U CN 201579853U
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- drill
- cutting edge
- cutting blade
- drill body
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Abstract
The utility model relates to a butterfly-shaped woodworking flat drill, which comprises a drill body, wherein a drill rod is arranged at the center of the back end surface of the drill body, and a drill handle is arranged at the other end of the drill rod; and a drill point is arranged at the center of the front end surface of the drill body and protrudes out of the front end surface of the drill body, and main cutting blades are arranged at the two sides of the drill point. The butterfly-shaped woodworking flat drill is characterized in that a short-circumferential-section cutting blade is arranged at the back of the outer side of the main cutting blade, and a tool tooth is arranged on the short-circumferential-section cutting blade; and a chip removal groove is formed between the short-circumferential-section cutting blade and the main cutting blade. The short-circumferential-section cutting blade occupies a small area of the outer circumference of the drill body, and the chip removal groove occupies a large area. The utility model has the advantages that the drilling resistance is reduced, the friction area of the short-circumferential-section cutting blade and a hole wall is reduced, and chips are smoothly discharged and does not cause blockage, therefore, the power is reduced, the heat productivity is reduced, and the service life is prolonged during drilling; and the consumption of raw materials is reduced, the sources are saved, and the environment is protected.
Description
Technical field
The utility model relates to a kind of carpenter, is used for holing on nonmetallic materials such as timber, plastics, rubber.
Background technology
At present used carpenter's flat-wing driller comprises drill body 1 shown in Figure 1A and Figure 1B, the front end face center of drill body 1 is provided with apex point 2, and apex point 2 protrudes from the front end face of drill body 1.Apex point 2 both sides are provided with main cutting edge 3, the back outside of main cutting edge 3 is provided with circumference cutting edge 4, is provided with a plurality of cutters tooth on circumference cutting edge 4, is formed with chip area 5 between circumference cutting edge 4 and the main cutting edge 3, rear end face center at drill body 1 is provided with drilling rod 6, and the other end of drilling rod 6 is provided with drillstock 7.Its circumference cutting edge 4 shared scope on drill body 1 excircle is big.Cutting teeth quantity is many, thereby chip area 5 shared scopes are few.Therefore the drilling resistance is big in boring procedure, and the contact range of drill body and hole wall is big, and friction phenomenon is serious, and the energy that is consumed during boring is many, easily heating, reduction of service life.
Summary of the invention
It is little that the purpose of this utility model provides a kind of drilling resistance, is difficult for heating, and energy consumes carpenter's flat-wing driller of low and long service life.
In order to achieve the above object, the technical solution of the utility model has provided a kind of butterfly shape carpenter flat-wing driller, comprise drill body, rear end face center at drill body is provided with drilling rod, the other end of drilling rod is provided with drillstock, the front end face center of drill body is provided with apex point, apex point protrudes from the front end face of drill body, be provided with main cutting edge in the apex point both sides, it is characterized in that, the back outside of main cutting edge is provided with short circumferential segment cutting edge, is provided with a cutter tooth on short circumferential segment cutting edge, is formed with chip area between short circumferential segment cutting edge and main cutting edge.
Described apex point is rectangular pyramid shape or tapered thread apex point.
The cross section of described drillstock is a kind of in incomplete triangle, circle or the hexagon.
Short circumferential segment cutting edge of the present utility model shared scope on the drill body excircle is little, and the shared scope of chip area is big.Its advantage is that the drilling resistance reduces, and the friction area of short circumferential segment cutting edge and hole wall reduces, and smear metal is discharged unobstructed, does not stop up.Power descends when therefore holing, and caloric value reduces, and increases the service life.And reduced raw-material consumption, and economize on resources, help environmental protection.
Description of drawings
Figure 1A is the front view of former carpenter's flat-wing driller;
Figure 1B is the side view of former carpenter's flat-wing driller;
The front view of a kind of butterfly shape carpenter flat-wing driller that Fig. 2 A provides for the utility model;
The side view of a kind of butterfly shape carpenter flat-wing driller that Fig. 2 B provides for the utility model;
The cutaway view of the handle portion of a kind of butterfly shape carpenter flat-wing driller that Fig. 2 C provides for the utility model;
Fig. 3 is the structural representation of the back taper carpenter flat-wing driller of tapered thread apex point for apex point;
Fig. 4 A is that drillstock is circular front view;
Fig. 4 B is that drillstock is circular cutaway view;
Fig. 5 A is that drillstock is hexagonal front view;
Fig. 5 B is that drillstock is hexagonal cutaway view.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
Shown in Fig. 2 A and Fig. 2 B, the structural representation of a kind of butterfly shape carpenter flat-wing driller that provides for the utility model, comprise drill body 1, rear end face center at drill body 1 is provided with drilling rod 6, the other end of drilling rod 6 is provided with drillstock 7, the front end face center of drill body 1 is provided with apex point 2, apex point 2 protrudes from the front end face of drill body 1, be provided with main cutting edge 3 in apex point 2 both sides, the back outside of main cutting edge 3 is provided with short circumferential segment cutting edge 9, on short circumferential segment cutting edge 9, be provided with a cutter tooth, between short circumferential segment cutting edge 9 and main cutting edge 3, be formed with chip area 8.
During work, drillstock 7 is clamped in the chuck of drilling machine or electric hand drill, and apex point 2 is aimed at by the boring center, starts drilling machine or electric hand drill, applies axial compressive force, and apex point 2 just pierces in the material, plays the centering effect.Cutter tooth contact material on the then short circumferential segment cutting edge 9 marks a circle, and progressively cuts off along this bundle of circles material on material.Main cutting edge 3 forms a circular hole to material removal in the circle then, outside chip area 8 taps of the material chip under the excision before main cutting edge 3.
Because have only a cutter tooth on each short circumferential segment cutting edge 9, cutter tooth enters material easily, can reduce axial resistance and cutting moment of torsion.Have only a cutter tooth on the short again circumferential segment cutting edge 9, short circumferential segment cutting edge 9 is very short, reduces with the friction area of hole wall, and frictional heat reduces, and temperature of diamond bit reduces, so the little energy that is consumed in whole boring procedure, temperature is low, and drilling life of bit is long.
Claims (3)
1. butterfly shape carpenter flat-wing driller, comprise drill body (1), be provided with drilling rod (6) at the rear end face center of drill body (1), the other end of drilling rod (6) is provided with drillstock (7), the front end face center of drill body (1) is provided with apex point (2), apex point (2) protrudes from the front end face of drill body (1), be provided with main cutting edge (3) in apex point (2) both sides, it is characterized in that, the back outside of main cutting edge (3) is provided with short circumferential segment cutting edge (9), on short circumferential segment cutting edge (9), be provided with a cutter tooth, between short circumferential segment cutting edge (9) and main cutting edge (3), be formed with chip area (8).
2. a kind of butterfly shape carpenter flat-wing driller as claimed in claim 1 is characterized in that described apex point (2) is rectangular pyramid shape or tapered thread apex point (10).
3. a kind of butterfly shape carpenter flat-wing driller as claimed in claim 1 is characterized in that, the cross section of described drillstock (7) is a kind of in circle or the hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145620U CN201579853U (en) | 2009-12-01 | 2009-12-01 | Butterfly-shaped woodworking flat drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145620U CN201579853U (en) | 2009-12-01 | 2009-12-01 | Butterfly-shaped woodworking flat drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201579853U true CN201579853U (en) | 2010-09-15 |
Family
ID=42721846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202145620U Expired - Lifetime CN201579853U (en) | 2009-12-01 | 2009-12-01 | Butterfly-shaped woodworking flat drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201579853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108972901A (en) * | 2018-07-17 | 2018-12-11 | 温州市人民医院 | A kind of wall opening apparatus |
-
2009
- 2009-12-01 CN CN2009202145620U patent/CN201579853U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108972901A (en) * | 2018-07-17 | 2018-12-11 | 温州市人民医院 | A kind of wall opening apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |
|
| CX01 | Expiry of patent term |