CN1065169C - Keyseat straight-blade woodworking drill - Google Patents
Keyseat straight-blade woodworking drill Download PDFInfo
- Publication number
- CN1065169C CN1065169C CN97104495A CN97104495A CN1065169C CN 1065169 C CN1065169 C CN 1065169C CN 97104495 A CN97104495 A CN 97104495A CN 97104495 A CN97104495 A CN 97104495A CN 1065169 C CN1065169 C CN 1065169C
- Authority
- CN
- China
- Prior art keywords
- drill
- keyway
- angle
- blade
- drill lip
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a woodworking drill bit which is composed of a drill rod, a drill blade and a drill slot, wherein the drill slot is a single-edge straight-blade type key slot. The drill blade can be double-blade, and the key slot has double slots matched with the drill blade. The drill blade and a slot blade are symmetrically arranged according to a clockwise direction or a counterclockwise direction. The drill blade can be three-blade, and the key slot has three slots matched with the drill blade. The drill blade and the slot blade are symmetrically arranged according to the clockwise direction or the counterclockwise direction. The present invention is characterized in that the shape and the structure of a scrap discharge slot is changed; a spiral type slot is changed into the straight-blade type key slot so that the present invention has functions of scrap discharge and horizontal milling; the drill blades can be arranged in the clockwise direction and the counterclockwise direction which are respectively suitable for utilization in a clockwise turning direction and a counterclockwise turning direction and are conveniently arranged and used on a woodworking machine.
Description
The invention belongs to wood working tool, particularly solid center bit.
Traditional solid center bit is the fluted drill of spiral groove type.The drill bit that particularly on woodworking machinery, uses, the general spiral bit that all adopts the spiral groove identical with metal boring.The shortcoming that this drill bit exists is vertically to hole, and because timber has annual ring grain, and the inwall fineness of holing on the wooden part is very poor, and wood chip difficulty is deviate from, drill bit spin friction is big, the easy warming-up effect cutting speed of drill lip.Use at present this drill bit mortice opening, can only be arranged in order boring again and again and being shaped, operate very numb numerous, inefficiency, the quality of tongue-and-groove is also poor.
The objective of the invention is to propose a kind of Keyseat straight-blade woodworking drill technical scheme, make drill bit have the in-milling function, laterally mortice opening, and boring or tongue-and-groove inwall are highly polished, and furfur is easy, crudy efficient height.
Solid center bit of the present invention is a kind of Keyseat straight-blade woodworking drill, and by drilling rod, drill lip and drill flute constitute, and drill flute is monolateral straight-blade type keyway; It is the straight sword of keyway that its rotation lags behind on one side, and the drill flute angle is the angle β on keyway both sides, and angle β can be 75 ° ± 5 °; Keyway sword limit mouth arc length is that arc L can be 1.5 millimeters ± 0.5 millimeter to the passive back of the straight sword of keyway mouth arc L; Keyway sword back mouth action H, action H can be 1.0 millimeters ± 0.5 millimeter.The drill lip of described solid center bit can be a twolip, and keyway is the double flute that cooperates with drill lip, and drill lip and groove sword are symmetrical arranged in the direction of the clock, and drill lip mouth chamfering is the angle α of cutting edge limit and drill pipe diameter, and angle α can be 15 ° ± 5 °.The drill lip of the two-point bit of described solid center bit and groove sword also can be by counterclockwise being symmetrical arranged.The drill lip of solid center bit of the present invention also can be three swords, and keyway is the three-flute that cooperates with drill lip, and drill lip and groove sword are symmetrical arranged in the direction of the clock, and drill lip mouth chamfering is the angle α of cutting edge limit and drill pipe diameter, and angle α can be 15 ° ± 5 °.Three cutting drill swords of described drill bit also can drill lip and the groove sword by counterclockwise being symmetrical arranged.The external diameter of two-point bit drilling rod is the 8-20 millimeter, and internal diameter is the 2-8 millimeter.The external diameter of three-wing bit drilling rod is the 8-20 millimeter, and internal diameter is the 2.5-10 millimeter.
Characteristics of the present invention are shape and the structures that changed chip area, and spiral groove is changed into sword formula keyway, make it have the function of chip removal and in-milling concurrently.Another characteristics be the straight sword of drill lip and keyway can be just counterclockwise two kinds of direction of rotation arrange, just be fit to contrary two kinds respectively and turn to use, conveniently on woodworking machinery, be provided with and use.
Embodiments of the invention are as shown in drawings:
Fig. 1 is traditional spiral groove spiral bit, and wherein 1A is a front view, and Figure 1B is a upward view;
Fig. 2 is a kind of structural form of two-point bit of the present invention, and wherein Fig. 2 A is a front view, and Fig. 2 B is a upward view, and Fig. 2 C is the enlarged drawing of Fig. 2 B;
Fig. 3 is the another kind of structural form of two-point bit of the present invention, and wherein Fig. 3 A is a front view, and Fig. 3 B is a upward view, and Fig. 3 C is the enlarged drawing of Fig. 3 B;
Fig. 4 is the structural form of three-wing bit of the present invention, and wherein Fig. 4 A is a front view, and Fig. 4 B is a upward view, and Fig. 4 C is the enlarged drawing of Fig. 4 B.
Number in the figure is represented:
1. drill bit, 2. drilling rod, 3. drill lip, 4. keyway, 5. cutting edge chamfering α, 6. drill flute angle β, 7. keyway sword limit mouth arc L, 8. keyway sword back mouth action H, the 9. straight sword of keyway.
Accompanying drawing is specified the present invention in conjunction with the embodiments:
The chip area of drill bit 1 of the present invention is the keyway 4 that vertically is provided with along drilling rod 2, is the straight sword 9 of keyway Yi Bian keyway 4 rotations lag behind; The drill lip 3 that cooperates can be a twolip, and is as Fig. 2, shown in Figure 3; The industry can be three swords as shown in Figure 4.Cutting edge chamfering 5 is angle α of cutting edge limit and drill pipe diameter, and angle α can be 15 ° ± 5 °, and drill flute angle 6 is the angle β on keyway 4 both sides, and angle β can be 75 ° ± 5 °.Keyway sword limit mouth arc length 7 is that arc L can be 1.5 millimeters ± 0.5 millimeter to the passive back of the straight sword of keyway mouth arc L, and long meeting increases frictional force, makes the drill bit heating; Keyway sword back mouth action H8 can be 1.0 millimeters ± 0.5 millimeter.Drilling rod 2 external diameters and internal diameter can have plurality of specifications, when 8 to 20 millimeters of external diameters, internal diameter can be between 2.5 millimeters to 10 millimeters, and for example external diameter can have 8 millimeters, 10 millimeters, 12 millimeters, specifications such as 14 millimeters, its drilling rod internal diameter then, promptly the footpath, garden can be corresponding at the bottom of the three-wing bit keyway 2.5 millimeters, 3 millimeters, 5 millimeters; The footpath, garden can be corresponding 2 millimeters at the bottom of the twolip keyway, 2.5 millimeters.The cooperation data that more than provide all have good result of use through inventor's experiment.
Advantage of the present invention at first shows the purposes that has enlarged drill bit, both can hole, Again can the in-milling mortise; Secondly the straight sword of keyway cuts off the wooden muscle of annual rings of timber, makes Boring or tongue-and-groove have good fineness, and drill speed is fast, and chip removal is easy, and work efficiency at double Improve; Drill lip can have suitable, and counterclockwise two kinds of directions are in the woodworking machinery side of installing and using Just, can effectively utilize machine power. Adopt the present invention can energy savings, make high-quality The converted products of amount.
Claims (7)
1. Keyseat straight-blade woodworking drill, by drilling rod, drill lip and drill flute constitute, and it is characterized in that drill flute is monolateral straight-blade type keyway; It is the straight sword of keyway that its rotation lags behind on one side, and the drill flute angle is the angle β on keyway both sides, and angle β can be 75 ° ± 5 °; Keyway sword limit mouth arc length is that arc L can be 1.5 millimeters ± 0.5 millimeter to the passive back of the straight sword of keyway mouth arc L; Keyway sword back mouth action H, action H can be 1.0 millimeters ± 0.5 millimeter.
2. solid center bit as claimed in claim 1, it is characterized in that drill lip is a twolip, keyway is the double flute that cooperates with drill lip, and drill lip and groove sword are symmetrical arranged in the direction of the clock, drill lip mouth chamfering is the angle α of cutting edge limit and drill pipe diameter, and angle α can be 15 ° ± 5 °.
3. solid center bit as claimed in claim 1, it is characterized in that drill lip is a twolip, keyway is the double flute that cooperates with drill lip, and drill lip and groove sword are by counterclockwise being symmetrical arranged, drill lip mouth chamfering is the angle α of cutting edge limit and drill pipe diameter, and angle α can be 15 ° ± 5 °.
4. solid center bit as claimed in claim 1, it is characterized in that drill lip is three swords, keyway is the three-flute that cooperates with drill lip, and drill lip and groove sword are symmetrical arranged in the direction of the clock, drill lip mouth chamfering is the angle α of cutting edge limit and drill pipe diameter, and angle α can be 15 ° ± 5 °.
5. solid center bit as claimed in claim 1, it is characterized in that drill lip is three swords, keyway is the three-flute that cooperates with drill lip, and drill lip and groove sword are by counterclockwise being symmetrical arranged, drill lip mouth chamfering is the angle α of cutting edge limit and drill pipe diameter, and angle α can be 15 ° ± 5 °.
6. as claim 1 or 2 or 3 described solid center bits, the external diameter that it is characterized in that drilling rod is the 8-20 millimeter, and internal diameter is the 2-8 millimeter.
7. as claim 1 or 2 or 3 described solid center bits, the external diameter that it is characterized in that drilling rod is the 8-20 millimeter, and internal diameter is the 2.5-10 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97104495A CN1065169C (en) | 1997-06-23 | 1997-06-23 | Keyseat straight-blade woodworking drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97104495A CN1065169C (en) | 1997-06-23 | 1997-06-23 | Keyseat straight-blade woodworking drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1175497A CN1175497A (en) | 1998-03-11 |
| CN1065169C true CN1065169C (en) | 2001-05-02 |
Family
ID=5167405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97104495A Expired - Fee Related CN1065169C (en) | 1997-06-23 | 1997-06-23 | Keyseat straight-blade woodworking drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1065169C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092092A2 (en) * | 1982-04-15 | 1983-10-26 | Gianfranco Cecchi | Cutter arbor having helicoidal cutters for wood planing machines |
| US5323823A (en) * | 1992-12-11 | 1994-06-28 | Roto Zip Tool Corporation | Wood router bit |
-
1997
- 1997-06-23 CN CN97104495A patent/CN1065169C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092092A2 (en) * | 1982-04-15 | 1983-10-26 | Gianfranco Cecchi | Cutter arbor having helicoidal cutters for wood planing machines |
| US5323823A (en) * | 1992-12-11 | 1994-06-28 | Roto Zip Tool Corporation | Wood router bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1175497A (en) | 1998-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105772809B (en) | A kind of manufacturing method of drill bit and drill bit | |
| CN201295785Y (en) | Multi-point thin-plate twist drill with a slotting-cutter-shaped outer edge and with 120 degrees sharp angle of the outer edge | |
| CN1065169C (en) | Keyseat straight-blade woodworking drill | |
| CN2294827Y (en) | Keyslot straight-edge type wood craft drill bit | |
| CN201140289Y (en) | Indexable mechanically-clamped drill milling tool | |
| CN112139569A (en) | Twist drill with combined edge and alloy tool bit | |
| CN2868511Y (en) | Internal-cooling hole cutter | |
| CN206286612U (en) | A kind of chip discharging structure of drill bit | |
| CN201030447Y (en) | Highly effective auger-drill head | |
| CN213382046U (en) | Woodworking tool with drilling and reaming combined function | |
| CN201529798U (en) | Disposable spiral nesting drilling device | |
| CN2555123Y (en) | Four-cutter edge hollow bit | |
| CN2433036Y (en) | Fully grinding new-type groove central drill | |
| CN201579463U (en) | Twist drill with multiple arc edges and multiple edge point | |
| CN2467244Y (en) | Milling cutter shape blade convex blade efficient universal twist-drill | |
| CN2734391Y (en) | Single-blade reamer | |
| CN206326163U (en) | A kind of ceramic combination drill bit | |
| CN112453504A (en) | Twist drill with hole-dividing alloy tool bit | |
| CN206286613U (en) | A kind of crown-shaped Multifunctional drills of W | |
| CN201183135Y (en) | Novel multi-edge twist drill | |
| CN2039239U (en) | Combined deep-hole drill | |
| CN201446598U (en) | Straight blade type drillbit for woodworker | |
| CN2267885Y (en) | Multifunction combined high-efficiency engineering broaching bit | |
| CN202527754U (en) | Left-rotation drill bit | |
| CN2244446Y (en) | Internal cooling flat drill capable of toe index linking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 12 of the detailed rules for the implementation of the patent law: 97104495.3 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 97218095.8 utility model patent to be given up, and in the 17 volume of the 18 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |