CN205097312U - Strengthen hole digger of chip removal power - Google Patents
Strengthen hole digger of chip removal power Download PDFInfo
- Publication number
- CN205097312U CN205097312U CN201520753504.0U CN201520753504U CN205097312U CN 205097312 U CN205097312 U CN 205097312U CN 201520753504 U CN201520753504 U CN 201520753504U CN 205097312 U CN205097312 U CN 205097312U
- Authority
- CN
- China
- Prior art keywords
- cutting
- connecting portion
- cutting body
- chip removal
- face
- 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
Abstract
The utility model relates to an electric tool field, especially a strengthen hole digger of chip removal power. This hole digger includes: a cutting body for cutting the saw -dust, the cutting body includes the cutting portion that two above circumference were laid, all has a cutting face in every cutting portion, cutting face and cutting body circumference planar contained angle are the acute angle the cutting blade has set firmly on the cutting face, the lower extreme of cutting blade stretches out the lower limb in cutting face, a connecting rod for connecting cutting body and rig, the connecting rod includes first connecting portion and second connecting portion, the second connecting portion set up between cutting body and first connecting portion, the toper of shape for drawing in in gradually to the cutting body from first connecting portion of second connecting portion. The utility model relates to a rationally, with low costs, can effectively the discharge saw -dust and the centre gripping of being convenient for.
Description
Technical field
The utility model relates to field of power tools, particularly a kind of hole making drill strengthening chip removal power.
Background technology
The instrument that existing wood materials perforation processing often uses is carpenter's Straight spiral drill head, the guidance part that its structure is normally made up of a self-tapping screw and a spiral main cutting portion form, the cutting edge of a class end is provided with at the periphery in main cutting portion, during boring, the guidance part first utilizing self-tapping screw to form bores a comparatively small holes on timber to be processed, using as cut time smooth-going guiding, pierce behind timber top layer smoothly until it, the most advanced and sophisticated cutting edge of recycling is taken advantage of a situation down-cutting, finally carry out cutting operation with main cutting portion, to complete the deep hole machining to wood materials.The structure of this kind of drill bit, although can carry out hole machined to timber, owing to only having a cutting edge, the speed of processing boring is slow, and stationarity is poor, and heat radiation is slow, and inner hole wall periphery rough after processing is rough, and precision is also poor.
Therefore, people improve on the basis of carpenter's Straight spiral drill head, as four sword four Wood working screw augers, six tooth wood-milling cutters, although this kind of drill bit changes the poor problem of the rough precision of inner hole wall periphery rough after the processing of carpenter's Straight spiral drill head, but when behind the use complete hole of these bit drills, drill bit all there will be and is compressed by wood chip, is not drawn out easily and problem that the clamping of drill bit connecting portion is unstable.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of reasonable in design, cost low, effectively can discharge wood chip and be convenient to the hole making drill that clamps.
The utility model solves the problems of the technologies described above the hole making drill that adopted technical scheme is this reinforcement chip removal power, comprise: for cutting the cutting body of wood chip, described cutting body comprises the cutting portion that two or more circumference is laid, each cutting portion all has a cutting face, the angle of described cutting face and cutting body circumferential plane is acute angle, described cutting face is installed with cutting tip, and the lower limb in described cutting face is stretched out in the lower end of described cutting tip; For connecting the connecting rod of cutting body and rig, described connecting rod comprises the first connecting portion and the second connecting portion, described second connecting portion is arranged between cutting body and the first connecting portion, and the shape of described second connecting portion is the taper of drawing in gradually from the first connecting portion to cutting body.In the geometrical principle of machinery, the circular penetration of taper ratio is strong, and wood chip is discharged from taper taper end, and the cylindrical card that is easy to is considered to be worth doing.
As preferably, the shape of described first connecting portion is hexagonal prism or tri-prismoid.
As preferably, described connecting rod also comprises the 3rd connecting portion, and described 3rd connecting portion is arranged between the second connecting portion and cutting body, and the shape of described 3rd connecting portion is cylinder.When holing darker, only upper strata wood chip need be discharged and can reach chip removal effect, the setting of the 3rd connecting portion can make hole making drill drilled darker, also saves the manufactured materials of the second connecting portion simultaneously, reduces cost.
The utility model compared with the existing technology has the following advantages and effect:
1, owing to being provided with the second connecting portion of taper, make connecting rod have stronger penetration, contribute to wood chip simultaneously and discharge from the thin portion of the second connecting portion.
2, because the first connecting portion is hexagonal prism or tri-prismoid, hole making drill can be clamped more firmly, thus further enhance chip removal power of the present utility model.
3, due to the setting of the 3rd connecting portion, effectively save the material of the second connecting portion, serve the effect reduced costs.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the side view of the utility model embodiment 1.
Fig. 2 is the side view of the utility model embodiment 2.
Fig. 3 is upward view of the present utility model.
Label declaration: cutting body 10, cutting portion 11, cutting face 12, cutting tip 13, center of circle cone 14, stroke circular cone 15, connecting rod 20, first connecting portion 21, second connecting portion 22, the 3rd connecting portion 23.
Detailed description of the invention
Be described in further detail the utility model below in conjunction with embodiment, following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment 1: as shown in Figure 1,3, the present embodiment is made up of cutting body 10, cutting portion 11, cutting face 12, cutting tip 13, center of circle cone 14, stroke circular cone 15, connecting rod 20, first connecting portion 21, second connecting portion 22.
Cutting body 10 comprises the cutting portion 11 that two circumferences are evenly laid, each cutting portion 11 all has a cutting face 12 tilted to same direction, cutting face 12 is acute angle with the angle of cutting body 10 circumferential plane, contribute to the discharge descending wood chip in working order, cutting face 12 is installed with cutting tip 13, and the lower limb 1mm in cutting face 12 is stretched out in the lower end of cutting tip 13.The lower surface of cutting body 10 is provided with the center of circle cone 14 for locating and draws circular cone 15; Center of circle cone 14 is arranged at the home position of cutting body 10 lower surface, draws the edge that circular cone 15 is arranged at cutting body 10 lower surface; Reducing highly successively of the lower end of the cone point of 14, the cone point of stroke circular cone 15 and cutting tip 13 is bored in the center of circle, and wherein the sharp lower end height 3mm than cutting tip 13 of the cone of center of circle cone 14, is conducive to piercing of hole making drill.
Cutting body 10 rear portion is provided with the connecting rod 20 be connected with rig body, connecting rod 20 comprises first connecting portion 21 and second connecting portion 22 two parts, second connecting portion 22 is arranged between cutting body and first 21, and described second connecting portion 22 is in the taper of drawing in gradually to cutting body 10 from the first connecting portion 21.First connecting portion 21, in hexagonal prism, makes hole making drill to be clamped more firmly, thus further enhances chip removal power of the present utility model.The setting of the second connecting portion 22, makes connecting rod 20 have stronger penetration, contributes to wood chip simultaneously and discharges from the thin portion of the second connecting portion 22.
Embodiment 2: as shown in Figure 2,3, all the other structures are identical with embodiment 1, and difference is that connecting rod 20 also comprises the 3rd connecting portion 23.
3rd connecting portion 23 of cylindricality effectively saves the material that the second connecting portion 22 should consume, and serves the effect reduced costs, and can not reduce compared with embodiment one in chip removal effect simultaneously.
In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different.All equivalences of doing according to structure, feature and the principle described in the utility model inventional idea or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (3)
1. strengthen a hole making drill for chip removal power, comprising:
For cutting the cutting body of wood chip, described cutting body comprises the cutting portion that two or more circumference is laid, each cutting portion all has a cutting face, the angle of described cutting face and cutting body circumferential plane is acute angle, described cutting face is installed with cutting tip, and the lower limb in described cutting face is stretched out in the lower end of described cutting tip;
For connecting the connecting rod of cutting body and rig, described connecting rod comprises the first connecting portion and the second connecting portion, described second connecting portion is arranged between cutting body and the first connecting portion, and the shape of described second connecting portion is the taper of drawing in gradually from the first connecting portion to cutting body.
2. strengthen the hole making drill of chip removal power according to claim 1, it is characterized in that: the shape of described first connecting portion is hexagonal prism or tri-prismoid.
3. according to claim 1 to 2 any one, strengthen the hole making drill of chip removal power, it is characterized in that: described connecting rod also comprises the 3rd connecting portion, described 3rd connecting portion is arranged between the second connecting portion and cutting body, and the shape of described 3rd connecting portion is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753504.0U CN205097312U (en) | 2015-09-22 | 2015-09-22 | Strengthen hole digger of chip removal power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753504.0U CN205097312U (en) | 2015-09-22 | 2015-09-22 | Strengthen hole digger of chip removal power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205097312U true CN205097312U (en) | 2016-03-23 |
Family
ID=55513122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520753504.0U Expired - Fee Related CN205097312U (en) | 2015-09-22 | 2015-09-22 | Strengthen hole digger of chip removal power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205097312U (en) |
-
2015
- 2015-09-22 CN CN201520753504.0U patent/CN205097312U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20160922 |