CN104827096A - Novel auger bit - Google Patents
Novel auger bit Download PDFInfo
- Publication number
- CN104827096A CN104827096A CN201510276017.4A CN201510276017A CN104827096A CN 104827096 A CN104827096 A CN 104827096A CN 201510276017 A CN201510276017 A CN 201510276017A CN 104827096 A CN104827096 A CN 104827096A
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- CN
- China
- Prior art keywords
- drill body
- drill
- auger bit
- groove
- shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a novel auger bit. The novel auger bit is formed by connecting a drill handle and a drill body. The novel auger bit is characterized in that the structure of the drill body is composed of a drill point and a main drill body in an integrated forming mode; the main drill body is formed in the manner that an 8-shaped drill body front end part with the small diameter and an 8-shaped drill body rear end part with the large diameter are integrally formed in the same axis, wherein the two ends of the 8-shaped drill body front end part with the small diameter are straight end faces, and the two ends of the 8-shaped drill body rear end part with the large diameter are straight end faces; a horizontal S-shaped main cutter is arranged on the drill body front end part along the 8-shaped part, a horizontal S-shaped auxiliary cutter is arranged on the drill body rear end part along the 8-shaped part, the drill handle is of a fine and long cylinder structure, and a positioning groove is formed in the position, close to the end, of one end of the drill handle. According to the novel auger bit, the drill point, the main cutter, the auxiliary cutter and a chip removal structure are effectively combined, three-level drilling and one-time forming are achieved, chip removal is smooth, and the smoothness of the drilling cut face is achieved.
Description
Technical field
The invention belongs to drill bit field, particularly relate to a kind of Novel auger bit.
Background technology
Drill bit is a kind of rotation and head end has the instrument of cutting power, general with carbon steel SK, or high-speed steel SKH2, the materials such as SKH3 through milling or rolling again through quenching, grind after tempering heat treatment and form, Drilling operation on metal or other materials, its scope of application is extremely wide, can apply to the toolroom machines such as drilling machine, lathe, milling machine, electric hand drill use.
Fluted drill is with the instrument of drilling workpiece circular hole by the rotary cutting of its relative fixed axis.When at present Drilling operation being carried out to workpiece, because fluted drill bit diameter often runs into comparatively greatly the situation that drill bit advances difficulty, time serious, also can cause the damage of unrepairable to drill bit.In order to ensure that there is higher precision in the hole processed, need on workpiece to be processed subdrilling one aperture, and then carry out reaming.Present way is exactly first get out aperture by Small-diameter drill, and then change the drill bit reaming of large footpath, such operation bothers very much, and inefficiency; Easily there is offset tool in reaming after changing large footpath drill bit, causes reaming failure.And existing fluted drill, the bit body of its boring is identical with the diameter of drill bit, the hole that this drill bit processes is with one heart with the hole of diameter, need processing with one heart and the shoulder hole of different-diameter time, need the bit bore first using minor diameter, bore the shoulder hole of minor diameter, because large diameter drill bit and head are with tapering, the ladder position of the shoulder hole expanded is also with tapering, sometimes also flatten the tapered portion of ladder with forsner bit, with this fluted drill converted products, there is following shortcoming: operation is more, inefficiency; Repeatedly process, concentricity is poor, and precision is low, can not meet the demand of high-precision product.
Summary of the invention
The technical problem to be solved in the present invention is that solution operation is more, inefficiency, and repeatedly process, concentricity is poor, and precision is low, can not meet the demand of high-precision product.
For solving the problems of the technologies described above, the invention provides following technical scheme: a kind of Novel auger bit, being connected and composed by drillstock, drill body two parts, it is characterized in that: the structure of described drill body is made up of apex point and drill body body two parts monolithic molding; Described drill body body by be the drill body head portion of the ∞ font body of straight end face and large diameter two ends be at the two ends of the minor diameter ∞ font body of straight end face drill body rearward end on the same axis monolithic molding form;
Described drill body body leading section is provided with horizontally disposed S shape main cutting cutter along ∞ font position, described S shape main cutting cutter and drill body body are monolithic molding, and described S shape main cutting cutter blade and described drill body body level angle are 15 ~ 30 °;
Described drill body body rearward end is provided with the secondary bite of horizontally disposed S shape along ∞ font position, the secondary bite of described S shape and drill body body are monolithic molding, and the secondary bite blade of described S shape and described drill body body level angle are 30 ~ 45 °;
The structure of described drillstock is elongate cylinder body structure, in one end of drillstock, near end position, is provided with positioning groove.
Further, the leading section of described drill body body is 1:1.5 with rearward end maximum gauge ratio.
A kind of Novel auger bit according to claim 1, is characterized in that: the angle on described apex point and horizontal axis is 15 ~ 25 °, and apex point length is 2 ~ 3cm.
Further, described drill body body rear ends is also respectively equipped with two groove for cuttings, described groove for cuttings extends to bottom from the start-up portion of drill body body rear ends in a helical pattern, on arbitrary cross section of drill body body, groove for cuttings is all positioned at position diametrically opposed to each other in drill body plane, and drill body body rear ends is divided into four parts by described two groove for cuttings uniformly.
Further, the structure of described positioning groove is offer the groove of 2 semicircle strips along cylinder drillstock periphery.
Beneficial effect of the present invention is as follows:
1, apex point, main cutting cutter, secondary bite and chip discharging structure effectively combine by drill bit of the present invention, realize three grades of borings, once-forming, and chip removal is unobstructed, realize the smooth of boring cutting face;
2, the setting of the ratio of the maximum gauge of drill body body front end of the present invention, drill body body rear end, is beneficial to the stable of structure in boring procedure, not easily occurs the phenomenon ruptured;
3, drill bit of the present invention is respectively equipped with two groove for cuttings on the leading section and rearward end of drill body body, the groove for cuttings of this symmetric figure, and row's bevel is long-pending large, and it is fast that row cuts speed, not easily causes broken accumulation of cutting;
4, have the positioning groove of 2 the semicircle strips offered along cylinder drillstock periphery outside drillstock of the present invention, such trench design serves fastening effect, Embedded drillstock, effectively can prevent drill bit landing from install machinery.
Accompanying drawing explanation
If Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Drawing reference numeral: 1, apex point, 2, main cutting cutter, 3, secondary bite, 4, positioning groove, 5, row cuts groove, 6, drill body body leading section, 7, drillstock, 8, drill body body rearward end
For making goal of the invention of the present invention, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
The structure of spiral bit of the present invention as shown in Figure 1, a kind of Novel auger bit, by drillstock 7, drill body two parts connect and compose, it is characterized in that: the structure of drill body is made up of apex point 1 and drill body body two parts monolithic molding, drill body body by be the drill body head portion 6 of the ∞ font body of straight end face and large diameter two ends be at the two ends of the minor diameter ∞ font body of straight end face drill body rearward end 8 on the same axis monolithic molding form, drill body body leading section 6 is provided with horizontally disposed S shape main cutting cutter 2 along ∞ font position, S shape main cutting cutter 2 and drill body body are monolithic molding, S shape main cutting cutter 2 blade and drill body body level angle are 15 ~ 30 °, drill body body rearward end 8 is provided with the secondary bite 3 of horizontally disposed S shape along ∞ font position, the secondary bite 3 of S shape is monolithic molding with drill body body, secondary bite 3 blade of S shape and drill body body level angle are 30 ~ 45 °, by apex point 1, main cutting cutter 2, secondary bite 3 and chip discharging structure 5 effectively combine, realize three grades of borings, once-forming, and chip removal is unobstructed, realize the smooth of boring cutting face.
The structure of drillstock 7 is elongate cylinder body structure, in one end of drillstock 7, near end position, be provided with positioning groove 4, structure is offer the groove of 2 semicircle strips along cylinder drillstock 7 periphery, such groove design serves fastening effect, Embedded drillstock, effectively can prevent drill bit landing from install machinery.
The rear ends of drill body body is respectively equipped with the row extending to bottom from start-up portion and cuts groove 5, on arbitrary cross section of drill body body, groove for cuttings 5 is all positioned at position diametrically opposed to each other in drill body plane, drill body body rear ends is divided into four parts by two groove for cuttings 5 uniformly, the groove for cuttings 5 of this symmetric figure, row's bevel is long-pending large, and it is fast that row cuts speed, not easily causes broken accumulation of cutting.
Above-described embodiment is preferred embodiment of the present invention; it is not the restriction to technical solution of the present invention; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (5)
1. a Novel auger bit, is connected and composed by drillstock, drill body two parts, it is characterized in that:
The structure of described drill body is made up of apex point and drill body body two parts monolithic molding; Described drill body body by be the drill body head portion of the ∞ font body of straight end face and large diameter two ends be at the two ends of the minor diameter ∞ font body of straight end face drill body rearward end on the same axis monolithic molding form;
Described drill body body leading section is provided with horizontally disposed S shape main cutting cutter along ∞ font position, described S shape main cutting cutter and drill body body are monolithic molding, and described S shape main cutting cutter blade and described drill body body level angle are 15 ~ 30 °;
Described drill body body rearward end is provided with the secondary bite of horizontally disposed S shape along ∞ font position, the secondary bite of described S shape and drill body body are monolithic molding, and the secondary bite blade of described S shape and described drill body body level angle are 30 ~ 45 °;
The structure of described drillstock is elongate cylinder body structure, in one end of drillstock, near end position, is provided with positioning groove.
2. a kind of Novel auger bit according to claim 1, is characterized in that: the leading section of described drill body body is 1:1.5 with rearward end maximum gauge ratio.
3. a kind of Novel auger bit according to claim 1, is characterized in that: the angle on described apex point and horizontal axis is 15 ~ 25 °, and apex point length is 2 ~ 3cm.
4. a kind of Novel auger bit according to claim 1, it is characterized in that: described drill body body rear ends is also respectively equipped with two groove for cuttings, described groove for cuttings extends to bottom from the start-up portion of drill body body rear ends in a helical pattern, on arbitrary cross section of drill body body, groove for cuttings is all positioned at position diametrically opposed to each other in drill body plane, and drill body body rear ends is divided into four parts by described two groove for cuttings uniformly.
5. a kind of Novel auger bit according to claim 1, is characterized in that: the structure of described positioning groove is offer the groove of 2 semicircle strips along cylinder drillstock periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276017.4A CN104827096A (en) | 2015-05-27 | 2015-05-27 | Novel auger bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276017.4A CN104827096A (en) | 2015-05-27 | 2015-05-27 | Novel auger bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104827096A true CN104827096A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510276017.4A Pending CN104827096A (en) | 2015-05-27 | 2015-05-27 | Novel auger bit |
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| Country | Link |
|---|---|
| CN (1) | CN104827096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364140A (en) * | 2015-11-18 | 2016-03-02 | 无锡科诺达电子有限公司 | Novel drill |
-
2015
- 2015-05-27 CN CN201510276017.4A patent/CN104827096A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364140A (en) * | 2015-11-18 | 2016-03-02 | 无锡科诺达电子有限公司 | Novel drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150812 |
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| WD01 | Invention patent application deemed withdrawn after publication |