CN205254193U - Two screw locking crowns in crossed groove location bore blade - Google Patents
Two screw locking crowns in crossed groove location bore blade Download PDFInfo
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- CN205254193U CN205254193U CN201520999295.8U CN201520999295U CN205254193U CN 205254193 U CN205254193 U CN 205254193U CN 201520999295 U CN201520999295 U CN 201520999295U CN 205254193 U CN205254193 U CN 205254193U
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Abstract
The utility model relates to a two screw locking crowns in crossed groove location bore blade contains work end and installation end, and processing is served in work has first blade locating surface, second blade locating surface, third blade locating surface, fourth blade locating surface, and first blade locating surface and second blade locating surface distribute with blade shaft line central symmetry, and third blade locating surface and fourth blade locating surface distribute with blade shaft line central symmetry, forms two sets of alternately faces, the installation end department that the crown bored the blade sets up two fastening faces symmetrically, work end department is equipped with heliciform blade chip groove and blade edge, and blade edge and blade chip groove are the one section spiral face of cylinder that has a width with the helical pitch, work end department is equipped with heliciform protection sword arris, protection sword arris be with the blade chip groove for with the helical pitch and the anterior angle for - 15~0 the one section helicoid that has a width, the work end is equipped with the cutting edge that comprises main cutting edge, transition sword, inside edge and chisel edge. Utilizing two -sided side pressure locking mode, can bearing bigger clamp force, the blade centre gripping is reliable.
Description
Technical field
The utility model relates to the two screw lock crown drill blades 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. For example there are " pin location, screw run through locking ", " intersection V-arrangement face location, post-tensioning screw lock ", " open pin location, non-screw rotation 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.
Utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of crossed grooves location two screw lock crown drill blades.
The purpose of this utility model is achieved through the following technical solutions:
The two screw lock crown drill blades in crossed grooves location, feature is: described crown drill blade comprises the working end and the installation end that centered by same blade axis, are connected mutually, on the working end of crown drill blade, be processed with the first blade locating surface, the second blade locating surface, the 3rd blade locating surface, four blade sheet locating surface, the first blade locating surface and the second blade locating surface distribute with blade axis Central Symmetry, the 3rd blade locating surface and four blade sheet locating surface distribute with 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, one section of spiral circle cylinder of what blade seamed edge and blade chip area were same helical pitch have width;
The working end place of described crown drill blade is provided with helical form protection cutter rib, and protection cutter rib is 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 being 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, the intersection of two rear knife faces 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 blades 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 four blade sheet locating surface is 15 °～35 °.
Further, the above-mentioned two screw lock crown drill blades in crossed grooves location, wherein, the fastening surface of described crown drill blade is parallel with the 3rd blade locating surface or four blade sheet locating surface in a circumferential direction.
Again further, the above-mentioned two screw lock crown drill blades in crossed grooves location, wherein, the angle that the fastening surface of described crown drill blade and blade axis form is 2.5 °～10 °, the high form of low-end in the middle of being.
Again further, the above-mentioned two screw lock crown drill blades in crossed grooves location, wherein, the angle forming between two main cutting edges on described crown drill blade is drift angle, drift angle is 180 °～90 °.
Again further, the above-mentioned two screw lock crown drill blades 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 of technical solutions of the utility model and progressive being mainly reflected in:
Utilize double faced lateral pressure locking mode, the angle of one of the fastening surface of crown drill blade and drill body crossed grooves is 60 °～120 °, in the time that 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, applied range according to actual processing conditions. There is simple for structure, reliable clamping, feature with low cost.
Brief description of the drawings
Fig. 1: the vertical schematic diagram of placing of axis of crown drill blade;
Fig. 2: the master of crown drill blade looks schematic diagram;
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. 2;
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 solutions of the utility model are described further:
As Fig. 1～7, the two screw lock crown drill blades in crossed grooves location, crown drill blade comprises the working end 31 and the installation end 32 that centered by same blade axis 30, are connected mutually, on the working end 31 of crown drill blade, be processed with the first blade locating surface 37, the second blade locating surface 38, the 3rd blade locating surface 39, four blade sheet locating surface 40, the first blade locating surface 37 and the second blade locating surface 38 distribute with blade axis 30 Central Symmetries, the 3rd blade locating surface 39 and four blade sheet locating surface 40 distribute with blade axis 30 Central Symmetries, form two groups of cross facets for coordinating with drill body insert groove, when installation, coordinate with drill body insert groove, play positioning action, can ensure that crown drill blade and drill body are coaxial.
The working end 31 of crown drill blade is provided with the cutting edge being 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, the intersection of two rear knife faces forms chisel edge 33, and between main cutting edge and chisel edge, mill has transitional edges 35 and inner edge 36; The angle forming between two main cutting edges 34 is drift angle 46, and drift angle 46 can be made into 180 °, 150 °, 140 °, 130 °, 120 °, 110 °, 100 °, 90 ° or other angle.
31 places, working end of crown drill blade are provided with helical form crown drill blade chip area 41 and blade seamed edge 42, and blade seamed edge 42 is the one section of spiral circle cylinder with certain width with helical pitch with crown drill blade chip area 41. Be mainly used to determine the diameter of 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 intersections, be treated to the anterior angle with certain width and be one section of helicoid of-15 °～0 ° conventionally, is called protection cutter rib 43, can in the time of drilling, play the effect of protection seamed edge. Wherein protect cutter rib wide 44 to make 1mm～3mm, protection cutter rib anterior angle 45 is made-15 °～0 °. Further, protection cutter rib 43 can do the blunt processing 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 four blade sheet locating surface 40 form is 15 °～35 °.
Installation end 32 places of crown drill blade arrange two fastening surfaces 51 symmetrically, when mounted, and for bearing the clamping force of trip bolt.
Fastening surface 51 forms angle 48 with blade axis 30, and angle 48 is 2.5 °～10 °, the high form of low-end in the middle of being. In the time that trip bolt clamps, form the clamping force of Fy. According to mechanics principle, Fy can form Fx and two component of Fh. And Fh component can make crown drill blade be adjacent to drill body along axis direction, ensure clamping reliability. The transversal 52 of fastening surface 51 on F-F cross section is parallel with the 3rd blade locating surface 39 or four blade sheet locating surface 40 in a circumferential direction.
When 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 coordinate with drill body insert groove location, and trip bolt screws in drill body screw hole and connects 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 of crown drill blade and crossed grooves is 60 °～120 °, in the time that 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, applied range according to actual processing conditions. There is simple for structure, reliable clamping, feature with low cost.
It is to be understood that: the above is only preferred embodiment of the present utility model; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. the two screw lock crown drill blades in crossed grooves location, it is characterized in that: described crown drill blade comprises the working end and the installation end that centered by same blade axis, are connected mutually, on the working end of crown drill blade, be processed with the first blade locating surface, the second blade locating surface, the 3rd blade locating surface, four blade sheet locating surface, the first blade locating surface and the second blade locating surface distribute with blade axis Central Symmetry, the 3rd blade locating surface and four blade sheet locating surface distribute with 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, one section of spiral circle cylinder of what blade seamed edge and blade chip area were same helical pitch have width;
The working end place of described crown drill blade is provided with helical form protection cutter rib, and protection cutter rib is 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 being 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, the intersection of two rear knife faces 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 blades in crossed grooves according to claim 1 location, 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 four blade sheet locating surface is 15 °～35 °.
3. the two screw lock crown drill blades in crossed grooves according to claim 1 location, is characterized in that: the fastening surface of described crown drill blade is parallel with the 3rd blade locating surface or four blade sheet locating surface in a circumferential direction.
4. the two screw lock crown drill blades in crossed grooves according to claim 1 location, is characterized in that: the angle that the fastening surface of described crown drill blade and blade axis form is 2.5 °～10 °, the high form of low-end in the middle of being.
5. the two screw lock crown drill blades in crossed grooves according to claim 1 location, is characterized in that: the angle forming between two main cutting edges on described crown drill blade is drift angle, and drift angle is 180 °～90 °.
6. the two screw lock crown drill blades in crossed grooves according to claim 1 location, 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 |
|---|---|---|---|
| CN201520999295.8U CN205254193U (en) | 2015-12-04 | 2015-12-04 | Two screw locking crowns in crossed groove location bore blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520999295.8U CN205254193U (en) | 2015-12-04 | 2015-12-04 | Two screw locking crowns in crossed groove location bore blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205254193U true CN205254193U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520999295.8U Active CN205254193U (en) | 2015-12-04 | 2015-12-04 | Two screw locking crowns in crossed groove location bore blade |
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| Country | Link |
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| CN (1) | CN205254193U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290465A (en) * | 2015-12-04 | 2016-02-03 | 苏州阿诺精密切削技术股份有限公司 | Crossed grooves located and double-screw locked crown drilling blade |
| CN109538127A (en) * | 2019-01-16 | 2019-03-29 | 中石化江钻石油机械有限公司 | A kind of ansa shape cutting tooth |
| CN109862981A (en) * | 2016-10-26 | 2019-06-07 | 京瓷株式会社 | The manufacturing method of cutting element and machined object |
| CN114799288A (en) * | 2022-05-19 | 2022-07-29 | 广东鼎泰高科技术股份有限公司 | Drilling tool with sectional edges |
-
2015
- 2015-12-04 CN CN201520999295.8U patent/CN205254193U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290465A (en) * | 2015-12-04 | 2016-02-03 | 苏州阿诺精密切削技术股份有限公司 | Crossed grooves located and double-screw locked crown drilling blade |
| CN109862981A (en) * | 2016-10-26 | 2019-06-07 | 京瓷株式会社 | The manufacturing method of cutting element and machined object |
| CN109862981B (en) * | 2016-10-26 | 2020-06-12 | 京瓷株式会社 | Cutting tool and method for manufacturing cut product |
| CN109538127A (en) * | 2019-01-16 | 2019-03-29 | 中石化江钻石油机械有限公司 | A kind of ansa shape cutting tooth |
| CN114799288A (en) * | 2022-05-19 | 2022-07-29 | 广东鼎泰高科技术股份有限公司 | Drilling tool with sectional edges |
| CN114799288B (en) * | 2022-05-19 | 2024-02-06 | 广东鼎泰高科技术股份有限公司 | Sectional edge drilling tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Patentee after: Suzhou Ahno Precision Cutting Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Patentee before: Suzhou Ahno Cutting Tool Technology Co., Ltd. |