CN105290465A - Crossed grooves located and double-screw locked crown drilling blade - Google Patents
Crossed grooves located and double-screw locked crown drilling blade Download PDFInfo
- Publication number
- CN105290465A CN105290465A CN201510885071.9A CN201510885071A CN105290465A CN 105290465 A CN105290465 A CN 105290465A CN 201510885071 A CN201510885071 A CN 201510885071A CN 105290465 A CN105290465 A CN 105290465A
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- CN
- China
- Prior art keywords
- blade
- locating surface
- crown drill
- edge
- working end
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Classifications
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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
-
- 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
- B23B2251/04—Angles, e.g. cutting angles
- B23B2251/043—Helix 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
- B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/20—Number of cutting edges
- B23B2251/204—Four cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/28—Arrangement of teeth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The present invention relates to a crossed grooves located and double-screw locked crown drilling blade. The crown drilling blade comprises a working end and an installing end. A first blade locating surface, a second blade locating surface, a third blade locating surface and a fourth blade locating surface are formed on the working end. The first and second blade locating surfaces are in central symmetry distribution about the axis of the blade, and the third and fourth blade locating surfaces are in central symmetry distribution about the axis of the blade, forming two sets of cross facets. Two fastening facets are symmetrically disposed on the installing end of the crown drilling blade. The working end is provided with a spiral blade chip groove and a blade edge. The blade edge and the blade chip groove form a section of spiral cylindrical surface with the same lead and a certain width. The working end is provided with a spiral protection edge. The protection edge and the blade chip groove form a section of spiral surface with the same lead, a front angle of -15 to 0 degree and a certain width. The working end is provided with a cutting edge consisting of a main cutting edge, a transition edge, an inner edge and a cross edge. With double-side pressure locking way, the crown drilling blade can bear a large clamping force, and the blade clamping is reliable.
Description
Technical field
The present invention relates to the two screw lock crown drill blade in a kind of crossed grooves location.
Background technology
Crown drill bit is that head adopts carbide alloy or other high performance materials, and drilling rod adopts a kind of combination type drill bit of alloy steel material.There is the advantages such as use cost is low, the range of work is large.
At present, the head of crown drill bit and drilling rod have multiple combination mode.Such as there are " locking is run through in pin location, screw ", " location, intersection V-arrangement face, post-tensioning screw lock ", " open pin location, non-screw rotate clamping " etc. all multi-form.These location and locking mode respectively have feature, or complex structure, and production cost is higher, or poor reliability, and the scope of application is limited.
Summary of the invention
The object of the invention is the deficiency overcoming prior art existence, provide a kind of crossed grooves to locate two screw lock crown drill blade.
Object of the present invention is achieved through the following technical solutions:
The two screw lock crown drill blade in crossed grooves location, feature is: described crown drill blade comprises the working end and installation end that are connected mutually centered by same blade axis, the working end of crown drill blade is processed with the first blade locating surface, the second blade locating surface, the 3rd blade locating surface, the 4th blade locating surface, first blade locating surface and the second blade locating surface distribute with blade axis Central Symmetry, 3rd blade locating surface and the 4th blade locating surface, with the distribution of blade axis Central Symmetry, form two groups of cross facets; The installation end place of crown drill blade arranges two fastening surfaces symmetrically; Fastening surface and blade axis form angle;
The working end place of described crown drill blade is provided with helical blade chip area and blade seamed edge, and blade seamed edge and blade chip area are one section of spiral circle cylinder with width of same helical pitch;
The working end place of described crown drill blade is provided with helical form protection cutter rib, and protection cutter rib is same helical pitch with blade chip area and anterior angle is one section of helicoid with width of-15 ° ~ 0 °;
The working end of described crown drill blade is provided with the cutting edge be made up of main cutting edge, transitional edges, inner edge and chisel edge, the intersection of blade chip area and rear knife face forms main cutting edge, after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges and inner edge.
Further, the above-mentioned two screw lock crown drill blade in crossed grooves location, wherein, and the first blade locating surface of described crown drill blade and the second blade locating surface, or the angle of the 3rd blade locating surface and the 4th blade locating surface is 15 ° ~ 35 °.
Further, the above-mentioned two screw lock crown drill blade in crossed grooves location, wherein, the fastening surface of described crown drill blade is parallel with the 3rd blade locating surface or the 4th blade locating surface in a circumferential direction.
Again further, the above-mentioned two screw lock crown drill blade in crossed grooves location, wherein, the angle that the fastening surface of described crown drill blade and blade axis are formed is 2.5 ° ~ 10 °, in the form that middle low-end is high.
Again further, the above-mentioned two screw lock crown drill blade in crossed grooves location, wherein, the angle formed between the main cutting of described crown drill blade is drift angle, and drift angle is 180 ° ~ 90 °.
Again further, the above-mentioned two screw lock crown drill blade in crossed grooves location, wherein, the blade chip area of described crown drill blade and the helical angle of blade seamed edge are 0 ° ~ 30 °.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progress are mainly reflected in:
Utilize double faced lateral pressure locking mode, the angle of one of the fastening surface and drill body crossed grooves of crown drill blade is 60 ° ~ 120 °, when this angle is 90 °, can bear larger clamping force, and the clamping of crown drill blade is more reliable.The cutting edge of crown drill blade can be produced as multiple pattern according to actual processing conditions, applied range.There is simple for structure, reliable clamping, feature with low cost.
Accompanying drawing explanation
Fig. 1: the schematic diagram of the axes normal placement of crown drill blade;
Fig. 2: the schematic front view of crown drill blade;
Fig. 3: the schematic side view of crown drill blade;
Fig. 4: the schematic top plan view of crown drill blade;
The E-E cross-sectional schematic of Fig. 5: Fig. 1;
Fig. 6: the schematic diagram of the fastening surface of crown drill blade;
The F-F cross-sectional schematic of Fig. 7: Fig. 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
As Fig. 1 ~ 7, the two screw lock crown drill blade in crossed grooves location, crown drill blade comprises the working end 31 and installation end 32 that are connected mutually centered by same blade axis 30, the working end 31 of crown drill blade is processed with the first blade locating surface 37, second blade locating surface 38, 3rd blade locating surface 39, 4th blade locating surface 40, first blade locating surface 37 and the second blade locating surface 38 distribute with blade axis 30 Central Symmetry, 3rd blade locating surface 39 and the 4th blade locating surface 40 distribute with blade axis 30 Central Symmetry, form two groups of cross facets for coordinating with drill body insert groove, during installation, coordinate with drill body insert groove, play positioning action, can ensure that crown drill blade is coaxial with drill body.
The working end 31 of crown drill blade is provided with the cutting edge be made up of main cutting edge 34, transitional edges 35, inner edge 36 and chisel edge 33, crown drill blade chip area 41 forms main cutting edge 34 with the intersection of rear knife face, after two, the intersection of knife face forms chisel edge 33, and between main cutting edge and chisel edge, mill has transitional edges 35 and inner edge 36; The angle formed between main cutting 34 is drift angle 46, and drift angle 46 can be made into 180 °, 150 °, 140 °, 130 °, 120 °, 110 °, 100 °, 90 ° or other angle.
Working end 31 place of crown drill blade is provided with helical form crown drill blade chip area 41 and blade seamed edge 42, and blade seamed edge 42 and crown drill blade chip area 41 are the one section of spiral circle cylinder with one fixed width with helical pitch.Be mainly used to the diameter determining crown drill blade, and play a supporting role in drilling process.Blade end land width can be made into 0.5mm ~ 3mm.The helical angle 47 of crown drill blade chip area 41 and blade seamed edge 42 is 0 ° ~ 30 °.
Crown drill blade chip area 41 and seamed edge 42 intersection, be treated to one section of helicoid that the anterior angle with one fixed width is-15 ° ~ 0 ° usually, is called protection cutter rib 43, can plays the effect of protection seamed edge when drilling.Wherein protect cutter rib wide 44 to make 1mm ~ 3mm, protection cutter rib anterior angle 45 makes-15 ° ~ 0 °.Further, protection cutter rib 43 can do the blunt process of circle, strengthens its antiwear property.
The angle 53 of the cross facet that the first blade locating surface 37 and the second blade locating surface 38 or the 3rd blade locating surface 39 and the 4th blade locating surface 40 are formed is 15 ° ~ 35 °.
Installation end 32 place of crown drill blade arranges two fastening surfaces 51 symmetrically, when mounted, for bearing the clamping force of trip bolt.
Fastening surface 51 and blade axis 30 form angle 48, and angle 48 is 2.5 ° ~ 10 °, in the form that middle low-end is high.When trip bolt clamps, define the clamping force of Fy.According to mechanics principle, Fy can form Fx and Fh two component.And Fh component can make crown drill blade be adjacent to drill body in the axial direction, ensure that clamping reliability.The transversal 52 of fastening surface 51 on F-F cross section is parallel with the 3rd blade locating surface 39 or the 4th blade locating surface 40 in a circumferential direction.
During assembling, the installation end 32 of crown drill blade is placed in drill body blade fastener hole, two groups of cross facets of crown drill blade working end 31 and drill body insert groove location fit, trip bolt screws in drill body screw hole and abuts against with fastening surface 51, and crown drill blade is anchored on drilling rod.
Utilize double faced lateral pressure locking mode, the angle of one of the fastening surface and crossed grooves of crown drill blade is 60 ° ~ 120 °, when this angle is 90 °, can bear larger clamping force, and the clamping of crown drill blade is more reliable.The cutting edge of crown drill blade can be produced as multiple pattern according to actual processing conditions, applied range.There is simple for structure, reliable clamping, feature with low cost.
It is to be understood that: the above is only the preferred embodiment of the present invention; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. the two screw lock crown drill blade in crossed grooves location, it is characterized in that: described crown drill blade comprises the working end and installation end that are connected mutually centered by same blade axis, the working end of crown drill blade is processed with the first blade locating surface, the second blade locating surface, the 3rd blade locating surface, the 4th blade locating surface, first blade locating surface and the second blade locating surface distribute with blade axis Central Symmetry, 3rd blade locating surface and the 4th blade locating surface, with the distribution of blade axis Central Symmetry, form two groups of cross facets; The installation end place of crown drill blade arranges two fastening surfaces symmetrically; Fastening surface and blade axis form angle;
The working end place of described crown drill blade is provided with helical blade chip area and blade seamed edge, and blade seamed edge and blade chip area are one section of spiral circle cylinder with width of same helical pitch;
The working end place of described crown drill blade is provided with helical form protection cutter rib, and protection cutter rib is same helical pitch with blade chip area and anterior angle is one section of helicoid with width of-15 ° ~ 0 °;
The working end of described crown drill blade is provided with the cutting edge be made up of main cutting edge, transitional edges, inner edge and chisel edge, the intersection of blade chip area and rear knife face forms main cutting edge, after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges and inner edge.
2. the two screw lock crown drill blade in crossed grooves location according to claim 1, it is characterized in that: the first blade locating surface of described crown drill blade and the second blade locating surface, or the angle of the 3rd blade locating surface and the 4th blade locating surface is 15 ° ~ 35 °.
3. the two screw lock crown drill blade in crossed grooves location according to claim 1, is characterized in that: the fastening surface of described crown drill blade is parallel with the 3rd blade locating surface or the 4th blade locating surface in a circumferential direction.
4. the two screw lock crown drill blade in crossed grooves location according to claim 1, is characterized in that: the angle that the fastening surface of described crown drill blade and blade axis are formed is 2.5 ° ~ 10 °, in the form that middle low-end is high.
5. the two screw lock crown drill blade in crossed grooves location according to claim 1, it is characterized in that: the angle formed between the main cutting of described crown drill blade is drift angle, drift angle is 180 ° ~ 90 °.
6. the two screw lock crown drill blade in crossed grooves location according to claim 1, is characterized in that: the blade chip area of described crown drill blade and the helical angle of blade seamed edge are 0 ° ~ 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885071.9A CN105290465A (en) | 2015-12-04 | 2015-12-04 | Crossed grooves located and double-screw locked crown drilling blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885071.9A CN105290465A (en) | 2015-12-04 | 2015-12-04 | Crossed grooves located and double-screw locked crown drilling blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105290465A true CN105290465A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885071.9A Pending CN105290465A (en) | 2015-12-04 | 2015-12-04 | Crossed grooves located and double-screw locked crown drilling blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN105290465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862981A (en) * | 2016-10-26 | 2019-06-07 | 京瓷株式会社 | Cutting tool and method for manufacturing cut product |
Citations (6)
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|---|---|---|---|---|
| CN101151116A (en) * | 2005-03-29 | 2008-03-26 | 三菱麻铁里亚尔株式会社 | Insert attaching/detaching type drill |
| CN101733451A (en) * | 2009-12-07 | 2010-06-16 | 株洲钻石切削刀具股份有限公司 | Head-changeable hard alloy twist drill |
| DE102009013580A1 (en) * | 2009-03-19 | 2010-09-23 | EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge | Modular drill |
| CN104759664A (en) * | 2015-04-21 | 2015-07-08 | 成都锋宜精密工具制造有限公司 | Self-locking type head-replaceable carbide drill |
| CN104827090A (en) * | 2015-05-26 | 2015-08-12 | 苏州阿诺精密切削技术股份有限公司 | V-shaped positioning double-screw locking tooth crown blade |
| CN205254193U (en) * | 2015-12-04 | 2016-05-25 | 苏州阿诺精密切削技术股份有限公司 | Two screw locking crowns in crossed groove location bore blade |
-
2015
- 2015-12-04 CN CN201510885071.9A patent/CN105290465A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101151116A (en) * | 2005-03-29 | 2008-03-26 | 三菱麻铁里亚尔株式会社 | Insert attaching/detaching type drill |
| DE102009013580A1 (en) * | 2009-03-19 | 2010-09-23 | EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge | Modular drill |
| CN101733451A (en) * | 2009-12-07 | 2010-06-16 | 株洲钻石切削刀具股份有限公司 | Head-changeable hard alloy twist drill |
| CN104759664A (en) * | 2015-04-21 | 2015-07-08 | 成都锋宜精密工具制造有限公司 | Self-locking type head-replaceable carbide drill |
| CN104827090A (en) * | 2015-05-26 | 2015-08-12 | 苏州阿诺精密切削技术股份有限公司 | V-shaped positioning double-screw locking tooth crown blade |
| CN205254193U (en) * | 2015-12-04 | 2016-05-25 | 苏州阿诺精密切削技术股份有限公司 | Two screw locking crowns in crossed groove location bore blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862981A (en) * | 2016-10-26 | 2019-06-07 | 京瓷株式会社 | Cutting tool and method for manufacturing cut product |
| CN109862981B (en) * | 2016-10-26 | 2020-06-12 | 京瓷株式会社 | Cutting tool and method for manufacturing cut product |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Applicant after: Suzhou Ahno Precision Cutting Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Applicant before: Suzhou Ahno Cutting Tool Technology Co., Ltd. |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |
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| WD01 | Invention patent application deemed withdrawn after publication |