CN106513807B - A kind of ball end mill - Google Patents
A kind of ball end mill Download PDFInfo
- Publication number
- CN106513807B CN106513807B CN201611145526.4A CN201611145526A CN106513807B CN 106513807 B CN106513807 B CN 106513807B CN 201611145526 A CN201611145526 A CN 201611145526A CN 106513807 B CN106513807 B CN 106513807B
- Authority
- CN
- China
- Prior art keywords
- bulb
- cutting
- cutter body
- edge
- ball end
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1009—Ball nose end mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/54—Configuration of the cutting part
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a kind of ball end mills, cutting portion including cutter body and positioned at described cutter body one end, the cutting portion includes two bulb cutting edges for being located at cutter body axial end face and two spiral cutting swords for being located at cutter body circumferential surface, the bulb cutting edge is corresponded and is smoothly connected with spiral cutting sword, the bulb cutting edge has flank, the flank of two bulb cutting edges is crossed to form a chisel edge at the bulb vertex X of the bulb cutting edge, and the chisel edge forms a facet that can be cut after grinding.Ball end mill of the present invention, it is not easy to wear at the X of bulb vertex, and machined surface quality is more preferable, so as to effectively avoid the problem that chisel edge rapid wear, coating premature failure, improves tool surface processing quality and durability.
Description
Technical field
The present invention relates to metal cutting technology field more particularly to a kind of ball end mills.
Background technology
In mold processing industry, there is higher requirement to the suface processing quality of mold, and during mold processing not
Tool changing perhaps is filled, otherwise can leave and connect tool marks, this requires finishing ball milling cutters for preferable processing quality and higher resistance to
Expenditure.But there are a weakness, i.e. bulb central chisel edge for traditional rose cutter, because chisel edge is the line that two planes are crossed to form
Shape cutting edge, and be negative rake, so easily wearing, to cause machined surface quality to be deteriorated, cutter life reduces.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of cutting force is small, durability is high,
The ball end mill of machined surface quality.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of ball end mill, including cutter body and the cutting portion positioned at described cutter body one end, the cutting portion
The bulb cutting edge for being located at cutter body axial end face including two and two spiral cutting swords for being located at cutter body circumferential surface,
The bulb cutting edge is corresponded and is smoothly connected with spiral cutting sword, and the bulb cutting edge has flank, two institutes
The flank for stating bulb cutting edge is crossed to form a chisel edge, the chisel edge warp at the bulb vertex X of the bulb cutting edge
A facet that can be cut is formed after grinding.
As a further improvement of the above technical scheme：
The width of the facet is a, and a value ranges are 0.02 mm~0.08mm.
The cutter body is located at rotation axis O, the bulb vertex X on the rotation axis O.
There is bulb chip pocket between two bulb cutting edges, the offset distance b of the bulb chip pocket be 0.01 mm~
0.06 mm, cutting-in c are the 1mm of 0.02 mm~0., and circular arc r is the mm of 0.02 mm~0.12.
Compared with the prior art, the advantages of the present invention are as follows：
The ball end mill of the present invention, the flank of two bulb cutting edges is crossed to form a chisel edge, to the chisel edge into
Row grinding forms facet, and during the cutting process, which may participate in cutting, thus is not easy at the X of bulb vertex
Abrasion, and machined surface quality is more preferable, so as to effectively avoid the problem that chisel edge rapid wear, coating premature failure, improves
Tool surface processing quality and durability.
Description of the drawings
Fig. 1 is the structural schematic diagram of ball end mill of the present invention.
Fig. 2 be in Fig. 1 A to schematic diagram.
Fig. 3 is enlarged drawing at B in Fig. 2.
Each label indicates in figure：
1, cutter body；2, cutting portion；3, bulb cutting edge；31, flank；4, spiral cutting sword；5, chisel edge；6, small flat
Face；7, chip pocket.
Specific implementation mode
Below in conjunction with Figure of description and specific embodiment, invention is further described in detail.
Fig. 1 to Fig. 3 shows that a kind of embodiment of ball end mill of the present invention, the ball end mill include cutter body 1
With the cutting portion 2 positioned at 1 one end of cutter body, cutting portion 2 includes two bulb cutting edges for being located at 1 axial end face of cutter body
3 and two spiral cutting swords 4 for being located at 1 circumferential surface of cutter body, bulb cutting edge 3 and spiral cutting sword 4 correspond and flat
Slip, bulb cutting edge 3 have flank 31, and the flank 31 of two bulb cutting edges 3 is in the bulb top of bulb cutting edge 3
A chisel edge 5 is crossed to form at point X, chisel edge 5 forms a facet 6 that can be cut after grinding.
In the present embodiment, two relatively narrow flanks 31 of bulb cutting edge 3 are crossed to form a chisel edge 5（Fig. 3 two points are drawn
Shown in line）, grinding is carried out with grinding wheel to the chisel edge 5 and forms facet 6, on facet 6 after coating, facet 6 is parallel with chisel edge 5
Two boundaries may replace chisel edge 5 participate in cutting, can to avoid because chisel edge 5 cross quick-wearing due to make coating premature failure.It was cutting
It is not easy to wear at Cheng Zhong, bulb vertex X, and machined surface quality is more preferable, so as to effectively avoid 5 rapid wear of chisel edge, apply
The problem of layer premature failure, improve tool surface processing quality and durability.
In the present embodiment, there is cutter body 1 rotation axis O, bulb vertex X to be located on rotation axis O.
The width of facet 6 is a, and a value ranges are 0.02 mm~0.08mm.There is ball between two bulb cutting edges 3
The offset distance b of head chip pocket 7, bulb chip pocket 7 is the mm of 0.01 mm~0.06, and cutting-in c is that 0.02 mm~0.1 mm, circular arc r are
The mm of 0.02 mm~0.12.
In concrete application example, the value size and the diameter of cutter body 1 of a, b, c, r are closely related, cutter body 1
Diameter is bigger, and the value of a, b, c, r are bigger.In the present embodiment, by taking cutter body 1 is 6mm as an example, a may be configured as 0.03mm.Partially
It is 0.04mm away from b, cutting-in c is 0.06mm, and circular arc r is 0.08mm.Rational 7 parameter value of bulb chip pocket can improve cutting edge
7 chip space of intensity and bulb chip pocket promotes cutting edge strength by controlling 7 circular arc of bulb chip pocket, offset distance and cutting-in, from
And improve cutting wear.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, every
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (4)
1. a kind of ball end mill, including cutter body（1）With positioned at the cutter body（1）The cutting portion of one end（2）, described
Cutting portion（2）It is located at cutter body including two（1）The bulb cutting edge of axial end face（3）It is located at cutter body with two（1）
The spiral cutting sword of circumferential surface（4）, the bulb cutting edge（3）With spiral cutting sword（4）It corresponds and is smoothly connected, it is described
Bulb cutting edge（3）With flank（31）, two bulb cutting edges（3）Flank（31）In the bulb cutting edge
（3）Bulb vertex X at be crossed to form a chisel edge（5）, the chisel edge（5）Formation one can be cut small after grinding
Plane（6）, the facet（6）With chisel edge（5）Two parallel boundaries replace chisel edge（5）Participate in cutting.
2. ball end mill according to claim 1, it is characterised in that：The facet（6）Width be a, a value models
It encloses for 0.02 mm~0.08mm.
3. ball end mill according to claim 1, it is characterised in that：The cutter body（1）With rotation axis O,
The bulb vertex X is located on the rotation axis O.
4. according to the ball end mill described in claims 1 to 3 any one, it is characterised in that：Two bulb cutting edges
（3）Between have bulb chip pocket（7）, the bulb chip pocket（7）Offset distance b be 0.01 mm~0.06 mm, cutting-in c be
0.02 mm~0.1 mm, circular arc r are the mm of 0.02 mm~0.12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145526.4A CN106513807B (en) | 2016-12-13 | 2016-12-13 | A kind of ball end mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145526.4A CN106513807B (en) | 2016-12-13 | 2016-12-13 | A kind of ball end mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106513807A CN106513807A (en) | 2017-03-22 |
| CN106513807B true CN106513807B (en) | 2018-08-31 |
Family
ID=58342384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611145526.4A Active CN106513807B (en) | 2016-12-13 | 2016-12-13 | A kind of ball end mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106513807B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964825A (en) * | 2017-04-26 | 2017-07-21 | 哈尔滨理工大学 | One kind splicing mould milling rose cutter |
| CN108580999A (en) * | 2018-05-14 | 2018-09-28 | 哈尔滨理工大学 | A kind of special rose cutter of Milling of Titanium Alloy thin-walled parts |
| CN109262038B (en) * | 2018-10-29 | 2020-06-02 | 株洲钻石切削刀具股份有限公司 | Multifunctional ball head milling cutter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002187012A (en) * | 2000-12-21 | 2002-07-02 | Osg Corp | Cbn ball end mill |
| JP3840661B2 (en) * | 2003-06-27 | 2006-11-01 | 日立ツール株式会社 | Ball end mill |
| CN101790432A (en) * | 2007-08-31 | 2010-07-28 | 佑能工具株式会社 | Ball end mill |
| CN204053051U (en) * | 2014-09-16 | 2014-12-31 | 贵州西南工具(集团)有限公司 | A kind of two S sword ball end mill |
| CN205085445U (en) * | 2015-11-03 | 2016-03-16 | 上海科弦精密工具有限公司 | Ball end mill suitable for finish machining |
| CN105436588A (en) * | 2015-12-28 | 2016-03-30 | 株洲钻石切削刀具股份有限公司 | Ball end mill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL159639A (en) * | 2003-12-29 | 2009-09-22 | Hanita Metal Works Ltd | Ballnose end mill |
-
2016
- 2016-12-13 CN CN201611145526.4A patent/CN106513807B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002187012A (en) * | 2000-12-21 | 2002-07-02 | Osg Corp | Cbn ball end mill |
| JP3840661B2 (en) * | 2003-06-27 | 2006-11-01 | 日立ツール株式会社 | Ball end mill |
| CN101790432A (en) * | 2007-08-31 | 2010-07-28 | 佑能工具株式会社 | Ball end mill |
| CN204053051U (en) * | 2014-09-16 | 2014-12-31 | 贵州西南工具(集团)有限公司 | A kind of two S sword ball end mill |
| CN205085445U (en) * | 2015-11-03 | 2016-03-16 | 上海科弦精密工具有限公司 | Ball end mill suitable for finish machining |
| CN105436588A (en) * | 2015-12-28 | 2016-03-30 | 株洲钻石切削刀具股份有限公司 | Ball end mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106513807A (en) | 2017-03-22 |
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