CN201147954Y - Blade-changeable self-tapping woodwork flat-wing drill - Google Patents
Blade-changeable self-tapping woodwork flat-wing drill Download PDFInfo
- Publication number
- CN201147954Y CN201147954Y CNU2008200547704U CN200820054770U CN201147954Y CN 201147954 Y CN201147954 Y CN 201147954Y CN U2008200547704 U CNU2008200547704 U CN U2008200547704U CN 200820054770 U CN200820054770 U CN 200820054770U CN 201147954 Y CN201147954 Y CN 201147954Y
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- China
- Prior art keywords
- drill
- blade
- drill body
- flat
- tapping
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to a self-tapping woodwork forstner drill with a replaceable blade, which comprises a drill body, a drill point, a drill stem and a drill shank. The drill body, the drill stem and the drill shank are integrated. The threaded drill point is arranged in the deep hole on the front end of the drill body. The self-tapping woodwork forstner drill is characterized in that a flume is arranged on the front end of the drill body; a replaceable blade is arranged in the flume; the drill point is provided with a shoulder which presses the blade. The self-tapping woodwork forstner drill has the advantages that the blade, the drill point and a bolt are replaceable; the blade can be taken down for milling conveniently when the blade is worn and torn; the blade which is heavily worn can be replaced with a new one; the drill body, the drill point, the drill stem and the drill shank are reconvenient in use; materials resources can be saved; the self-tapping woodwork forstner drill is friendly to the environment.
Description
Technical field
The utility model relates to a kind of knife changable self tapping carpenter flat-wing driller, can be used for holing on the nonmetallic materials such as timber, plastics, belongs to the carpenter technical field.
Background technology
Present used a kind of knife changable self tapping carpenter flat-wing driller, generally form monolithic construction by apex point, circumference cutting edge, main cutting edge, flute, drilling rod, drillstock, because carpenter's flat-wing driller structure is special, the grinding of its cutting edge will be equipped with special fixture and could process on cutter and tool grinding machine, so after the drill edge wearing and tearing, the user can't reface, can only abandon, become disposable products, drilling life of bit is short, and waste is serious.
Summary of the invention
The purpose of this utility model provides the removable self tapping carpenter of a kind of cutting edge flat-wing driller.
For realizing above purpose, the technical solution of the utility model provides a kind of knife changable self tapping carpenter flat-wing driller, comprise drill body, apex point, drilling rod and drillstock, drill body, drilling rod and drillstock are made as one, are provided with threaded apex point in the drill body front end deep hole, it is characterized in that, the drill body front end is provided with a skewed slot, is provided with dismountable blade in skewed slot, fix by screw, apex point is provided with oblique shoulder, is pressed on the blade.
The utility model has the advantages that: blade, apex point and screw are detachable, blade can be pulled down behind the blade abrasion and reface, and reface conveniently; replaceable new blade when blade heavy wear need be scrapped; and drill body, apex point, drilling rod and drillstock are reusable, but the economical with materials resource helps environmental protection.
Description of drawings
Fig. 1 is a kind of knife changable self tapping carpenter flat-wing driller structural representation;
Fig. 2 is a kind of knife changable self tapping carpenter flat-wing driller side view;
Fig. 3 is the A-A cutaway view;
Fig. 4 is drill body, drilling rod and drillstock integrative-structure schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, 2, 3, be a kind of knife changable self tapping carpenter flat-wing driller structural representation, described a kind of knife changable self tapping carpenter flat-wing driller is by drill body 1, apex point 2, blade 3, screw 4, drilling rod 5, drillstock 6, skewed slot 9 and tiltedly take on 10 and form.
Drill body 1, drilling rod 5 and drillstock 6 are made as one, are provided with threaded apex point 2 in the drill body 1 front end deep hole 7, and drill body 1 front end has a skewed slot 9, is provided with dismountable blade 3 in skewed slot 9, and fixing by screw 4, apex point 2 is provided with oblique shoulder 10, is pressed on the blade 3.
Described blade 3 is made up of main cutting edge 11 and circumference cutting edge 12, and circumference cutting edge 12 is located at the termination of main cutting edge 11, and main cutting edge 11 fronts are provided with flute 14.
Fig. 4 is drill body, drilling rod and drillstock integrative-structure schematic diagram, described drilling rod 5 is provided with horizontal screw 8, connects with drill body 1 front end deep hole 7, and screw 4 is located in the screw 8, the epiconus of screw 4 holds out against in the conical counterbore 13 of apex point 2 shanks, thereby apex point 2 and blade 3 are fixed on the drill body 1.
During work, drillstock 6 is clamped in the drill chuck of drilling machine or electric hand drill, and apex point 2 is aimed at by the boring center, start drilling machine or electric hand drill, apply axial compressive force, apex point 2 is screwed into material, and drives drill body 1 to material movement, circumference cutting edge 12 is contact material at first, draw a circle on material, and along this circle material is cut off gradually, then main cutting edge 11 is material cutting in the circle, form a circular hole, the material that cuts is by outside flute 14 evacuation apertures.
After repeatedly boring makes blade 3 wearing and tearing, screw 4 can be unscrewed and withdraw from screw 8, extract apex point 2, just can take off blade 3, main cutting edge 11 and circumference cutting edge 12 on the blade 3 are sharp from new mill, again blade 3 are put into skewed slot 9, insert apex point 2, tighten screw 4, drill bit again can be from new use, after repeatedly refacing, when blade 3 can not use because of size decreases, the adjustable blade that renews, and drill body 1, drilling rod 5 and drillstock 6 can be reused for a long time.
Claims (3)
1. knife changable self tapping carpenter flat-wing driller, comprise drill body (1), apex point (2), drilling rod (5) and drillstock (6), drill body (1), drilling rod (5) and drillstock (6) are made as one, be provided with threaded apex point (2) in drill body (1) the front end deep hole (7), it is characterized in that drill body (1) front end is provided with a skewed slot (9), is provided with dismountable blade (3) in skewed slot (9), fixing by screw (4), apex point (2) is provided with oblique shoulder (10), is pressed on the blade (3).
2. a kind of knife changable self tapping carpenter flat-wing driller according to claim 1, it is characterized in that, described blade (3) is made up of main cutting edge (11) and circumference cutting edge (12), circumference cutting edge (12) is located at the termination of main cutting edge (11), and main cutting edge (11) front is provided with flute (14).
3. a kind of knife changable self tapping carpenter flat-wing driller according to claim 1 is characterized in that described drilling rod (5) is provided with horizontal screw (8), connects with drill body (1) front end deep hole (7), and screw (4) is located in the screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200547704U CN201147954Y (en) | 2008-01-16 | 2008-01-16 | Blade-changeable self-tapping woodwork flat-wing drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200547704U CN201147954Y (en) | 2008-01-16 | 2008-01-16 | Blade-changeable self-tapping woodwork flat-wing drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147954Y true CN201147954Y (en) | 2008-11-12 |
Family
ID=40115720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200547704U Expired - Lifetime CN201147954Y (en) | 2008-01-16 | 2008-01-16 | Blade-changeable self-tapping woodwork flat-wing drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147954Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140216825A1 (en) * | 2013-02-01 | 2014-08-07 | Milwaukee Electric Tool Corporation | Auger bit with replaceable cutting bit |
-
2008
- 2008-01-16 CN CNU2008200547704U patent/CN201147954Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140216825A1 (en) * | 2013-02-01 | 2014-08-07 | Milwaukee Electric Tool Corporation | Auger bit with replaceable cutting bit |
| US9500038B2 (en) * | 2013-02-01 | 2016-11-22 | Milwaukee Electric Tool Corporation | Auger bit with replaceable cutting bit |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |