CN104128641A - Drill bit - Google Patents
Drill bit Download PDFInfo
- Publication number
- CN104128641A CN104128641A CN201310159270.2A CN201310159270A CN104128641A CN 104128641 A CN104128641 A CN 104128641A CN 201310159270 A CN201310159270 A CN 201310159270A CN 104128641 A CN104128641 A CN 104128641A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cutting edge
- drilling
- sections
- blade
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/08—Side or plan views of cutting edges
- B23B2251/082—Curved cutting edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention aims to provide a power saving drill bit. The drill bit comprises a drill handle, and an edge part mounted at the end of the drill handle, wherein a parabola cutting edge is arranged on the edge part in the axial direction; the key point is that the cutting edge consists of multiple sections; and the dip angles of all sections of the cutting edges are different. In the drilling process, as the dip angles of all sections of the cutting edges are different, chips generated by drilling can be cut off in the connected places of the adjacent cutting edges, and the completion of longer length cannot be kept, so that the acting force between a drilling material and the drill bit is not increased along with the gradual drilling of the drill bit into the drilling material, and the driving force needed by the drilling is saved.
Description
Technical field
The invention belongs to bit technique field, specially refer to a kind of labour-saving drill bit.
Background technology
Traditional drill bit is all to adopt spiral cutting edge to hole, and cutting edge is continuous, the inclination angle of each position is also all identical, the chip that can cause like this boring to produce is also continuous shape, in boring procedure, along with drill bit is deep in boring material gradually, the active force between boring material and drill bit also can strengthen thereupon gradually, and then the resistance of expanded motor, the power that must improve gradually motor could continue boring.
Summary of the invention
The object of the invention is to propose a kind of labour-saving drill bit.
Drill bit of the present invention comprises drillstock and the blade that is arranged on drillstock end, and described blade is provided with parabola shaped cutting edge vertically, and key is that described cutting edge forms by several sections, the inclination angle difference of the cutting edge of described each section.
In boring procedure, due to the inclination angle difference of the cutting edge of each section, therefore the chip that boring produces can be cut off in the joint of adjacent cutting sword, thereby cannot keep the complete of length, active force between boring material and drill bit just can not be deep into gradually in boring material and increases gradually along with drill bit like this, has saved the required driving force of holing.
Further, the joint by the end of blade to blade and drillstock, the inclination angle of the cutting edge of described different sections (be cutting edge with boring material between angle) increase gradually.Because the inclination angle of the cutting edges of different sections increases gradually, therefore the active force between cutting edge and borehole wall also increases gradually, can avoid, because directly adopting diameter and inclination angle to cause the active force of holing between sword and hole wall to increase suddenly compared with large boring sword, making hole wall produce too much burr.
Drill bit of the present invention is by changing the structure of cutting edge, can avoid the active force of holing between material and drill bit just can not be deep into gradually in boring material and increase gradually along with drill bit, saved the required driving force of holing.
Brief description of the drawings
Fig. 1 is the structural representation of drill bit of the present invention.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as effect and the operation principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part.
Embodiment 1:
As shown in Figure 1, the drill bit of the present embodiment comprises drillstock 1 and the blade 2 that is arranged on drillstock 1 end, and described blade 2 is provided with parabola shaped cutting edge vertically, and key is that described cutting edge forms by 3,4 two sections, the inclination angle difference of the cutting edge of described 3,4 two sections.
In boring procedure, due to the inclination angle difference of the cutting edges of 3,4 two sections, therefore the chip that boring produces can be cut off in the joint of 3,4 two sections of cutting edges, thereby cannot keep the complete of length, active force between boring material and drill bit just can not be deep into gradually in boring material and increases gradually along with drill bit like this, has saved the required driving force of holing.
Further, 3, the inclination angle of the cutting edge of 4 two sections increases gradually, active force between cutting edge and borehole wall also increases gradually like this, can avoid, because directly adopting diameter and inclination angle to cause the active force of holing between sword and hole wall to increase suddenly compared with large boring sword, making hole wall produce too much burr.
Claims (2)
1. a drill bit, comprises drillstock and the blade that is arranged on drillstock end, and described blade is provided with parabola shaped cutting edge vertically, it is characterized in that described cutting edge forms by several sections, the inclination angle difference of the cutting edge of described each section.
2. drill bit according to claim 1, is characterized in that the joint to blade and drillstock by the end of blade, and the inclination angle of the cutting edge of described different sections increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310159270.2A CN104128641A (en) | 2013-05-03 | 2013-05-03 | Drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310159270.2A CN104128641A (en) | 2013-05-03 | 2013-05-03 | Drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104128641A true CN104128641A (en) | 2014-11-05 |
Family
ID=51801636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310159270.2A Pending CN104128641A (en) | 2013-05-03 | 2013-05-03 | Drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104128641A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0126409A2 (en) * | 1983-05-18 | 1984-11-28 | Hawera Probst GmbH + Co. | Boring tool |
| CN2039239U (en) * | 1988-12-09 | 1989-06-14 | 江西量具刃具厂 | Combined deep-hole drill |
| CN2207897Y (en) * | 1995-01-05 | 1995-09-20 | 许朝阳 | Concentric multi-grade drill |
| EP1537932A1 (en) * | 2003-12-02 | 2005-06-08 | Reiner Quanz GmbH & Co. KG | Drill |
| TWM270862U (en) * | 2005-01-31 | 2005-07-21 | Shiao Puo Shi Entpr Co Ltd | Drill bit structure with cutting blade |
| US20060037786A1 (en) * | 2004-08-19 | 2006-02-23 | Yoshihiro Takikawa | Drill having construction suitable for enlarging previously formed hole |
| CN1951637A (en) * | 2005-10-22 | 2007-04-25 | 组合产品公司第一公司 | Damaged bolt and screw removing devices |
| CN101342605A (en) * | 2007-07-12 | 2009-01-14 | 本田技研工业株式会社 | Drill |
| CN202317177U (en) * | 2011-11-23 | 2012-07-11 | 河南天丰节能板材科技股份有限公司 | Counterbore machining drill |
-
2013
- 2013-05-03 CN CN201310159270.2A patent/CN104128641A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0126409A2 (en) * | 1983-05-18 | 1984-11-28 | Hawera Probst GmbH + Co. | Boring tool |
| CN2039239U (en) * | 1988-12-09 | 1989-06-14 | 江西量具刃具厂 | Combined deep-hole drill |
| CN2207897Y (en) * | 1995-01-05 | 1995-09-20 | 许朝阳 | Concentric multi-grade drill |
| EP1537932A1 (en) * | 2003-12-02 | 2005-06-08 | Reiner Quanz GmbH & Co. KG | Drill |
| US20060037786A1 (en) * | 2004-08-19 | 2006-02-23 | Yoshihiro Takikawa | Drill having construction suitable for enlarging previously formed hole |
| TWM270862U (en) * | 2005-01-31 | 2005-07-21 | Shiao Puo Shi Entpr Co Ltd | Drill bit structure with cutting blade |
| CN1951637A (en) * | 2005-10-22 | 2007-04-25 | 组合产品公司第一公司 | Damaged bolt and screw removing devices |
| CN101342605A (en) * | 2007-07-12 | 2009-01-14 | 本田技研工业株式会社 | Drill |
| CN202317177U (en) * | 2011-11-23 | 2012-07-11 | 河南天丰节能板材科技股份有限公司 | Counterbore machining drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141105 |