CN107225269A - With the top cutter of evagination - Google Patents
With the top cutter of evagination Download PDFInfo
- Publication number
- CN107225269A CN107225269A CN201710438677.7A CN201710438677A CN107225269A CN 107225269 A CN107225269 A CN 107225269A CN 201710438677 A CN201710438677 A CN 201710438677A CN 107225269 A CN107225269 A CN 107225269A
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- CN
- China
- Prior art keywords
- cutter
- blade
- knife
- handle
- evagination
- 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.)
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses with the top cutter of evagination.This includes top tip part, handle of a knife and cutter hub with the top cutter of evagination, top tip part, handle of a knife and cutter hub is together with coaxially connected, it is top top and second top including first, first top one end positioned at cutter hub, the other end of cutter hub connects one end of handle of a knife, the other end connection second of handle of a knife is top, and cutter hub is provided with outside spiral-shaped blade portion is tilted, and first is top for cylindrical pyramidal structure.The present invention, which has, to economize on resources, it is to avoid bursting apart for cutter ends, improve cutting precision and processing efficiency, improve the quality of cutter and the effect of service life.
Description
Technical field
The present invention relates to cutting-tool engineering field, more particularly to a kind of cutter top with evagination.
Background technology
Cutter is to be used for the instrument of machining, also known as cutting element in machine-building.It is right with the development of all trades and professions
Cutter manufacture technology proposes higher requirement, need to use the cutter of higher precision, meanwhile, the cost to cutter manufacture is also carried
The consumption for needing to save material, and the tool dimension transformation of the way after use are gone out in higher requirement, manufacturing process, by diameter reconditioning
Change it is small be continuing with into another specification, be client save cost.
By taking the drill bit of Drilling operation as an example, drill bit is made up of shank and cutting edge portion two parts, is needed between the two very
High concentricity, common processing method has：
The first：Bar centerless external cylindrical mill is first worked into handle footpath size, then clamping shank grinding blade, this method
Centering process can be saved, but 100% detection bounce is needed when clamping shank removes grinding blade, and this clamping beats past
Past larger, concentricity is larger between shank and blade.
Second：Bar two ends centering, the centre bore of Double Tops pinnacle bar both ends of the surface processes one end with peripheral milling, so
The u-turn reprocessing other end afterwards, to obtain higher concentricity, stationary center can be all used here and without using rolling center, although
This mode of Double Tops point can obtain the concentricity higher than foregoing first way.But：Drill bit is needed to cut after cylindricalo grinding
The centre bore excision of blade position is cut, then reconditioning apex point again, can so cause great waste of material and man-hour to waste；In drill bit
A part of region of male cone (strobilus masculinus) that the whole inner conical surface in heart hole is top with lathe is contacted, in grinding, between stationary center and cutter
High speed rotary grinding is carried out, the subregion Fast Wearing of the top contact of lathe can be caused in production in enormous quantities, other are non-
Contact area is again without synchronous abrasion.Because bit central hole varies, there is also error in processing, meanwhile, the top of lathe
Concentricity just occurs in repeated clamping and u-turn process is carried out there is also subregion abrasion, drill bit in point.It is fixed
It is top to carry out high speed rotary grinding between cutter, and on lathe prior art it is outer top without effective cooling means,
Temperature rise can be caused to influence bounce or the concentricity of cutter.
In the tool dimension transformation of the way, foregoing first method is undoubtedly concentricity maximum；Aforementioned second method need to be cut
Apex point position, then the centering on end face, cuts centre bore reconditioning apex point again again after the completion of the transformation of the way, still can so make
Wasted into great waste of material and process.
Therefore, to solve the deficiency on existing cutter structure, for lifting tool precision, in the manufacturing process to lift cutter
Efficiency, save material resources, further innovation need to be made to the structure of existing cutter.
The content of the invention
According to an aspect of the invention, there is provided with the top cutter of evagination, including top tip part, handle of a knife and cutter hub, top
Tip, handle of a knife and cutter hub be top top and second top including first for together with coaxially connected, the first top cutter hub that is located at
One end, the other end of cutter hub connects one end of handle of a knife, and the other end connection second of handle of a knife is top, and cutter hub, which is provided with, to be tilted outwards
Spiral-shaped blade portion, first is top for cylindrical pyramidal structure.
The cutter top with evagination of the present invention, its advantage is that the two ends of cutter are provided with first top and the second top
Point, the cutter of top tip structure can realize the effect for positioning in time and being easy to cutting, in use, by the second top and shank portion
Be fixed, cutter hub is used for machining, when cutter hub occur it is badly damaged to when can not repair, can be by with the second top knife
Handle portion carries out directly being ground to structure of the cutter body, thus directly will not scrap by the cutter of damage, save resource.
Cutter in the present invention is a kind of drill bit.
In some embodiments, the male cone (strobilus masculinus) angle α of top tip part (1) cylindrical pyramidal structure is 50 ° to 150 °.Its is beneficial
Effect is that this scope belongs to the apex point drift angle of drill bit, such as the most conference of processing stainless steel and high strength steel uses the brill to 150 °
Even up to 50 ° of apex point below 90 ° of point, processing rubber or plastics.Using it is complete it is top after directly can be worn into apex point.
In some embodiments, the male cone (strobilus masculinus) angle α of top tip part (1) cylindrical pyramidal structure is 90 ° to 140 °.Its is beneficial
Effect is that its advantage is that this scope belongs to the apex point top corner regions of most of drill bits, such as standard mill flower brill is 118 °,
According to the different drill head apical angle of rapidoprint in this range changing.Using it is complete it is top after directly can be worn into apex point.
In some embodiments, the male cone (strobilus masculinus) angle α of top tip part (1) cylindrical pyramidal structure is 60 ° to 90 °.Its is beneficial
Effect is that its advantage is that this scope belongs to the apex point top corner regions of pilot drill, such as 90 ° pilot bits can be disposably complete
Into centering and chamfer machining, 60 ° of counterbits are applied to the processing in 60 ° of countersunk head screw holes.Using it is complete it is top after can directly be ground
Into apex point.
In some embodiments, blade part includes interior blade and outer blade, and interior blade is located at the spiral shape knot of blade part
The inner side of structure, outer blade is located at the outside of the helical structure of blade part, and the outer surface between interior blade and outer blade is and knife
The parallel arc structure in handle outer surface.Its advantage is, interior blade and outer blade can cutter rotary cutting workpiece when
Time acts on workpiece, realizes cutting.
In some embodiments, cutter hub is provided with chip area, the inner surface that chip area blade part spiral is formed
Fluted body structure, chip area is the helical structure parallel with blade part.Its advantage is that interior blade and outer blade are simultaneously right
After workpiece is cut, the waste material cut can be discharged by parallel spiral shape chip area, prevent scrap from influenceing cutter
Continue to cut.
In some embodiments, interior blade is provided with fillet surface on the excircle at the blade end of first top one end,
Fillet surface and top outer surface form the first chamfering, and the outer surface of fillet surface and interior blade forms the second chamfering, fillet surface with
Arc surface the 3rd chamfering of formation between interior blade and outer blade.Its advantage is that the tip of the interior blade of blade part is entered
Row circumference falls after blunt processing, will in the tip of end of blade cut, remove tip, form three chamferings, the brill
Point of penetration is the end of interior blade, internal blade when so can avoid high speed rotary drilling-head after processing during the high speed rotation of head
Cause heavy wear or blade to burst apart deformation in end, it is to avoid influence cutting precision and processing efficiency, improve the quality of cutter
And service life.
In some embodiments, the angle of the first chamfering, the second chamfering and the 3rd chamfering is 30 °~60 °.Its is beneficial
Effect is, the angle of chamfering, which is realized, to be carried out circumference to the tip of the interior blade of blade part and fall blunt processing, realizes fillet surface
Quality stability, furthermore achieved that the interior non-damageable effect in blade end.
In some embodiments, the radius of the cylindrical structure of handle of a knife is more than cutter hub circumferential outer surface distance center axis
Distance.Its advantage is that the excircle diameter of handle of a knife is big, and handle of a knife is fastened when realizing using cutter,
It is easy to implement handle of a knife being processed and is ground to cutter hub.
In some embodiments, top tip part, handle of a knife and cutter hub use hard metal material.Its advantage is to push up
Sharp structure can be made of Hardmetal materials, ensured its wearability, increased the service life.
In some embodiments, second is top for concave conical structure.Its advantage is that concave is conical
Structure can conveniently coordinate on general lathe top fixed structure top and shank portion is fixed by second.
In some embodiments, second is top for cylindrical pyramidal structure.Its advantage is that cutter two ends are top
Cylindrical pyramidal structure, two evaginations of first process tool are top, reuse indent special on lathe it is top with cutter on it is outer
Convex top cooperation, Double Tops point clamping grinding is cylindrical, and this clamping processing mode can ensure very high between tool shank and sword
Concentricity, this clamping processing mode can also ensure very high repeated clamping precision.Second is top for cylindrical pyramidal structure
With the cylindrical structural of handle of a knife, handle of a knife and the second top part be subjected to grinding when being easy to need top into cutter hub and first
Identical structure, make the best use of everything, economize on resources and accelerate to be made the efficiency of cutter, cutter can not be straight during the use in later stage
Stand up and put, this does not just have the situation for toppling over damage, and the second top outer cone structure setting eliminates cutter and was made
The top process of grinding is carried out in journey again, the top error of repetition reconditioning is decreased, eliminates the cumbersome of multilayer process,
Processing efficiency is accelerated, cutting-tool's used life is added.
The cutter of the present invention uses whole hard alloy or high speed steel making.Its hardness and wearability are good, and physical life is long.
Brief description of the drawings
Fig. 1 is the side structure schematic view of the cutter top with evagination of an embodiment of the present invention；
Fig. 2 is the structural representation of the part A of the cutter top with evagination shown in Fig. 1；
Fig. 3 is the dimensional structure diagram with the top cutter of evagination shown in Fig. 1；
Fig. 4 is the structural representation of the part B of the cutter top with evagination shown in Fig. 3；
Fig. 5 is the structural representation of the cutter top with evagination of another embodiment of the invention.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1-Fig. 5 schematically shows the cutter top with evagination according to one embodiment of the present invention.As schemed
Shown, the cutter includes top tip part 1, handle of a knife 2 and cutter hub 3, and top tip part 1, handle of a knife 2 and cutter hub 3 are top for together with coaxially connected
Including first top 11 and second top 12, first top 11 is located at one end of cutter hub 3, the other end connection handle of a knife 2 of cutter hub 3
One end, the other end connection second top 12 of handle of a knife 2, cutter hub 3 is provided with the outside spiral-shaped blade portion of inclination, first top 11
For cylindrical pyramidal structure.
The male cone (strobilus masculinus) angle α of top tip part (1) cylindrical pyramidal structure is 50 ° to 150 °.
It is preferred that, the male cone (strobilus masculinus) angle α of top tip part (1) cylindrical pyramidal structure is 90 ° to 140 °.
It is further preferred that the male cone (strobilus masculinus) angle α of top tip part (1) cylindrical pyramidal structure is 60 ° to 90 °.
Interior blade 31 on the excircle at the blade end of first top 11 one end be provided with fillet surface 4, fillet surface 4 with it is top
Outer surface form the first chamfering, the outer surface of fillet surface 4 and interior blade 31 forms the second chamfering, fillet surface 4 and the interior knife
Arc surface the 3rd chamfering of formation between sword 31 and outer blade 32.
Second top 12 is cylindrical pyramidal structure, and handle of a knife 2 is cylindrical structural.Second top 12 be cylindrical pyramidal structure and
The cylindrical structural of handle of a knife 2, when being easy to need by 2 and second top 12, handle of a knife 1 point carry out grindings into cutter hub 3 and first
Top 11 identical structure.
The cutter top with evagination of the present invention, the two ends of cutter are provided with first top 11 and second top 12, top knot
The cutter of structure can realize the effect for positioning in time and being easy to cutting, in use, second top 12 and the part of handle of a knife 2 are consolidated
Fixed, cutter hub 3 is used for machining, when cutter hub 3 occur it is badly damaged to when can not repair, can be by with second top 12 handle of a knife
2 parts carry out directly being ground to the structure of cutter hub 3, thus directly will not scrap by the cutter of damage, save resource, and the
Two top 12 setting is eliminated carries out the top process of grinding again during cutter is made, eliminate the numerous of multilayer process
It is trivial, processing efficiency is accelerated, cutting-tool's used life is added；And it is blunt to the tip progress circumference of the interior blade 31 of blade part
After processing, will in the tip of end of blade 31 cut, remove tip, form three chamferings, the high speed of the drill bit
Point of penetration is the end of interior blade 31 during rotation, the end of internal blade 31 when so can avoid high speed rotary drilling-head after processing
Cause heavy wear or blade to burst apart deformation, it is to avoid influence cutting precision and processing efficiency, improve the quality of cutter and make
Use the life-span.
Blade part includes interior blade 31 and outer blade 32, and interior blade 31 is located at the inner side of the helical structure of blade part, outside
Blade 32 is located at the outside of the helical structure of blade part, outer surface between interior blade 31 and outer blade 32 be with outside handle of a knife 2
The parallel arc structure in surface.Interior blade 31 and outer blade 32 can act on workpiece when cutter rotary cutting workpiece,
Realize cutting.
Cutter hub 3 is provided with chip area 33, the fluted body structure for the inner surface that the blade part spiral of chip area 33 is formed, row
Bits groove 33 is the helical structure parallel with blade part.Interior blade 31 and outer blade 32 are cut workpiece simultaneously after, cutting
The waste material got off can be discharged by parallel spiral shape chip area 33, prevent scrap from influenceing the continuation cutting of cutter.
The angle of first chamfering, the second chamfering and the 3rd chamfering is 30 °~60 °.The angle of chamfering is realized to blade
The tip of the interior blade 31 in portion carries out circumference and falls blunt processing, realizes the quality stability of fillet surface 4, furthermore achieved that interior knife
The non-damageable effect in the end of sword 31.
The radius of the cylindrical structure of handle of a knife 2 is more than the distance of the circumferential outer surface distance center axis of cutter hub 3.Handle of a knife 2
Excircle diameter is big, realizes using handle of a knife 2 is fastened during cutter, also allows for realization and handle of a knife 2 is processed into mill
It is whittled into cutter hub 3.
Top tip part 1, handle of a knife 2 and cutter hub 3 use hard metal material.Top tip structure can use Hardmetal materials system
Into ensureing its wearability, increase the service life.
As shown in figure 5, second top 12 can also be concave conical structure.Concave conical structure can facilitate
Coordinate on general lathe top fixed structure top and shank portion is fixed by second.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (10)
1. with the top cutter of evagination, it is characterised in that including top tip part (1), handle of a knife (2) and cutter hub (3), the top tip part
(1), handle of a knife (2) and cutter hub (3) for it is coaxially connected together, it is described top including first top (11) and second top (12),
Described first top (11) are located at one end of the cutter hub (3), and the other end of the cutter hub (3) connects the one of the handle of a knife (2)
End, the other end of the handle of a knife (2) connects second top (12), and the cutter hub (3) is provided with the outside spiral shape of inclination
Blade part, described first top (11) are cylindrical pyramidal structure.
2. the cutter top with evagination according to claim 1, it is characterised in that the cylindrical taper knot of top tip part (1)
The male cone (strobilus masculinus) angle α of structure is 50 ° to 150 °.
3. the cutter top with evagination according to claim 2, it is characterised in that the cylindrical taper knot of top tip part (1)
The male cone (strobilus masculinus) angle α of structure is 90 ° to 140 °.
4. the cutter top with evagination according to claim 3, it is characterised in that the cylindrical taper knot of top tip part (1)
The male cone (strobilus masculinus) angle α of structure is 60 ° to 90 °.
5. the cutter top with evagination according to claim 1, it is characterised in that the cutter hub (3) is provided with chip area
(33), the fluted body structure for the inner surface that the chip area (33) is formed by blade part spiral, the chip area (33) is
The helical structure parallel with blade part.
6. the cutter top with evagination according to claim 5, it is characterised in that the blade part includes interior blade (31)
With outer blade (32), the interior blade (31) is located at the inner side of the helical structure of the blade part, outer blade (32) position
In the outside of the helical structure of the blade part, the outer surface between the interior blade (31) and outer blade (32) is and handle of a knife
(2) the parallel arc structure in outer surface.
7. the cutter top with evagination according to claim 1, it is characterised in that the interior blade (31) is top first
(11) excircle at the blade end of one end is provided with fillet surface (4), and the fillet surface (4) forms first with top outer surface
Chamfering, the outer surface of the fillet surface (4) and the interior blade (31) forms the second chamfering, the fillet surface (4) with it is described interior
Arc surface the 3rd chamfering of formation between blade (31) and outer blade (32).
8. the cutter top with evagination according to claim 1, it is characterised in that first chamfering, the second chamfering and
The angle of 3rd chamfering is 30 °~60 °.
9. the cutter top with evagination according to claim 1, it is characterised in that described second top (12) are concave
Conical structure.
10. the cutter top with evagination according to claim 1, it is characterised in that described second top (12) are cylindrical
Pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710438677.7A CN107225269A (en) | 2017-06-12 | 2017-06-12 | With the top cutter of evagination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710438677.7A CN107225269A (en) | 2017-06-12 | 2017-06-12 | With the top cutter of evagination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107225269A true CN107225269A (en) | 2017-10-03 |
Family
ID=59936366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710438677.7A Pending CN107225269A (en) | 2017-06-12 | 2017-06-12 | With the top cutter of evagination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107225269A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2245834A1 (en) * | 1996-03-27 | 1997-10-02 | Komet Prazisionswerkzeuge Robert Breuning Gmbh | Drilling tool for machine tools and method of producing the same |
| CN101821044A (en) * | 2007-10-17 | 2010-09-01 | 钴碳化钨硬质合金公司 | Rotary tool, in particular drill |
| CN104439432A (en) * | 2014-11-27 | 2015-03-25 | 苏州阿诺精密切削技术股份有限公司 | J-shaped seamed edge correction auger bit |
| CN104551105A (en) * | 2013-10-17 | 2015-04-29 | 常州埃特法斯工具有限公司 | Dual-bit center drill |
| CN205096600U (en) * | 2015-09-11 | 2016-03-23 | 武汉泰尔斯刀具有限公司 | Tubesheet holes processes drill bit |
| CN207188851U (en) * | 2017-06-12 | 2018-04-06 | 杭州希恩希拓斯精密机械有限公司 | With the top cutter of evagination |
-
2017
- 2017-06-12 CN CN201710438677.7A patent/CN107225269A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2245834A1 (en) * | 1996-03-27 | 1997-10-02 | Komet Prazisionswerkzeuge Robert Breuning Gmbh | Drilling tool for machine tools and method of producing the same |
| CN101821044A (en) * | 2007-10-17 | 2010-09-01 | 钴碳化钨硬质合金公司 | Rotary tool, in particular drill |
| CN104551105A (en) * | 2013-10-17 | 2015-04-29 | 常州埃特法斯工具有限公司 | Dual-bit center drill |
| CN104439432A (en) * | 2014-11-27 | 2015-03-25 | 苏州阿诺精密切削技术股份有限公司 | J-shaped seamed edge correction auger bit |
| CN205096600U (en) * | 2015-09-11 | 2016-03-23 | 武汉泰尔斯刀具有限公司 | Tubesheet holes processes drill bit |
| CN207188851U (en) * | 2017-06-12 | 2018-04-06 | 杭州希恩希拓斯精密机械有限公司 | With the top cutter of evagination |
Non-Patent Citations (1)
| Title |
|---|
| 李红: "《机械制造基础》", 北京邮电大学出版社, pages: 233 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20171003 |