CN204867570U - Efficiency of work is improved durable type through -hole and combined drill of counter bore - Google Patents
Efficiency of work is improved durable type through -hole and combined drill of counter bore Download PDFInfo
- Publication number
- CN204867570U CN204867570U CN201520344740.7U CN201520344740U CN204867570U CN 204867570 U CN204867570 U CN 204867570U CN 201520344740 U CN201520344740 U CN 201520344740U CN 204867570 U CN204867570 U CN 204867570U
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- CN
- China
- Prior art keywords
- drill
- hole
- cutting blade
- durable type
- counterbore
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Abstract
The utility model discloses an efficiency of work is improved durable type through -hole and combined drill of counter bore, the body and cutting blade are bored for the straight shank to the main part, and its innovation point lies in: the straight shank bores personally experiences sth. Part of the body to the cylinder the straight shank bores to personally experience sth. Part of the body to go up to open there is the chip groove, cutting blade has two, forms the chip groove between the rotatory orbit of cutting cutting part, cutting blade's center is fixed with bullet head form alloy head. Parallel shank drill integrated into one piece, the rigidity is stable, compact structure, convenient to use, the one of which thing is dual -purpose.
Description
Technical field
The utility model relates to a kind of rough machinedly repaiies hole instrument, specifically a kind of durable type bored plain bore and bore the combined drill of counterbore.
Background technology
Drill bit goes out through hole or blind hole in order to drilling on solid material, and can to the cutter of existing hole reaming.Drill bit can be divided into roughing with and fining-off, the drill bit of roughing generally has very large cutting output.But, because general drill bit only has a kind of function of boring, and there is no bullet-shaped alloy head, cause blade to be easy to wearing and tearing, and the function of drill bit be relatively single.
Utility model content
The purpose of this utility model is that the combined drill of a kind of durable type through hole of increasing work efficiency and counterbore both can be used for boring common hole, also can be used for boring counterbore.
The technical solution adopted in the utility model is: the combined drill of a kind of durable type through hole of increasing work efficiency and counterbore, main body is staight shank drill body and cutting blade, its innovative point is: described staight shank drill body is cylinder, described staight shank drill body has chip area, described cutting blade has two, form chip area between cutting edge portion rotational trajectory, the center of described cutting blade is fixed with bullet-shaped alloy head.
Further, the length of described staight shank drill body is 20 ~ 30cm.
Further, the angle of described cutting blade and horizontal line angle is 15 ~ 20 degree; The shape of cutting edge is back taper.
Further, be fixed with bullet-shaped alloy head in described cutting blade, its length is 1cm, and width is: 0.5cm.
Further, described drill body is cylinder, and its length is 10 ~ 15cm.
Further, described drill body is provided with the frictional layer increasing frictional force.
The beneficial effects of the utility model are:
1, straight shank drill described in the utility model is one-body molded, stiff stability, and compact conformation is easy to use, its dual-use material.
2, the utility model drill bit is provided with two blades, and the design of the angle that blade is carried out and structure, effectively raise the operating efficiency of boring.
3, be fixed with bullet-shaped alloy head in blade described in the utility model, such design effectively can prevent the excessive wear of blade.
4, drill body described in the utility model is provided with the layer of sand that rubs increasing frictional force, and can increase the frictional force of drill bit and rotating shaft, what drill bit was clamped is more firm.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Fig. 1 is structural scheme of mechanism of the present utility model.
Fig. 2 is the cutting end view of the utility model drill bit.
Detailed description of the invention
Straight shank drill as shown in Figure 1, by drill body 1, drill body 2, cutting blade 3, bullet shaped alloy head 4, chip area 5, frosted layer 6 is formed.
The structure of straight shank drill is as shown in Figure 1: drill body 1 is cylinder, and the length of drill body is 10 ~ 15cm, and handling and the use of straight shank drill are mainly considered in the design of this structure, and too short being not easy grips, the poor stability of oversize use.
One end of straight shank drill is drill body 2 as shown in Figure 1, and the front end of drill body 2 is provided with cutting blade 3, and described cutting blade 3 has two, is in a center of symmetry about the rotary middle spindle of drill body; The angle of cutting blade 3 is comparatively large, is so just conducive to boring counterbore; The shape of boring the cutting edge of cutting blade 3 is back taper, and so effective laminating processing work surface, reduces process time, increase work efficiency.
Described drill body 2 has chip area 5, between the rotational trajectory of two cutting blades 3, forms chip area 5, during processing work, cut the material bits produced and discharge from chip area 5.
Be fixed with bullet-shaped alloy head 4 in described cutting blade 3, bullet-shaped alloy head 4 being designed to bullet-shaped is to make the cutting of alloy head be more prone to, so also can preventing cutting blade excessive wear.
The outer surface of described drill body 1 is provided with the frosted layer 6 increasing frictional force, and frosted layer 6 can increase the frictional force of drill bit and rotating shaft, makes drill bit more firm by what clamp, not easily drops.
During processing work, the drill jig of electric drill firmly clamps drill body 1, first bullet-shaped alloy head 4 contacts processing work surface, and carries out preparatory processing, prevents the excessive wear of 3 of cutting blade, when bullet-shaped alloy head 4 successfully passes processing work surface, then cutting blade 3 starts processing work for further processing, and produces a large amount of material bits, and material bits are automatically discharged from chip area 5, after continuing for some time, so just successfully can complete processing.And counterbore is the operation having carried out next step after having bored through hole, generally be used on the through hole less than the diameter of cutting blade 3, first be allow bullet-shaped alloy head 4 through through hole, cutting blade 3 is directly contacted with the surrounding of through hole, add man-hour, only need through hole surrounding to be processed into the counterbore that caves in just, need not drill through.
The above is preferred embodiment of the present utility model, can not limit the interest field of the utility model with this.It should be pointed out that for those skilled in the art, the technical solution of the utility model is modified or equivalent replacement, do not depart from protection domain of the present utility model.
Claims (6)
1. the combined drill of a durable type through hole of increasing work efficiency and counterbore, main body is staight shank drill body and cutting blade, it is characterized in that: described staight shank drill body is cylinder, described staight shank drill body has chip area, described cutting blade has two, form chip area between cutting edge portion rotational trajectory, the center of described cutting blade is fixed with bullet-shaped alloy head.
2. the combined drill of a kind of durable type through hole of increasing work efficiency according to claim 1 and counterbore, is characterized in that: the length of described staight shank drill body is 20 ~ 30cm.
3. the combined drill of a kind of durable type through hole of increasing work efficiency according to claim 1 and counterbore, is characterized in that: the angle of described cutting blade and horizontal line angle is 15 ~ 20 degree; The shape of cutting edge is back taper.
4. the combined drill of a kind of durable type through hole of increasing work efficiency according to claim 1 and counterbore, it is characterized in that: be fixed with bullet-shaped alloy head in described cutting blade, its length is 1cm, and width is: 0.5cm.
5. the combined drill of a kind of durable type through hole of increasing work efficiency according to claim 1 and counterbore, it is characterized in that: described drill body is cylinder, its length is 10 ~ 15cm.
6. the combined drill of a kind of durable type through hole of increasing work efficiency according to claim 5 and counterbore, is characterized in that: described drill body is provided with the frictional layer increasing frictional force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344740.7U CN204867570U (en) | 2015-05-26 | 2015-05-26 | Efficiency of work is improved durable type through -hole and combined drill of counter bore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344740.7U CN204867570U (en) | 2015-05-26 | 2015-05-26 | Efficiency of work is improved durable type through -hole and combined drill of counter bore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204867570U true CN204867570U (en) | 2015-12-16 |
Family
ID=54811998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520344740.7U Expired - Fee Related CN204867570U (en) | 2015-05-26 | 2015-05-26 | Efficiency of work is improved durable type through -hole and combined drill of counter bore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204867570U (en) |
-
2015
- 2015-05-26 CN CN201520344740.7U patent/CN204867570U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160526 |