CN104439469A - Round bottom milling cutter - Google Patents
Round bottom milling cutter Download PDFInfo
- Publication number
- CN104439469A CN104439469A CN201410729383.6A CN201410729383A CN104439469A CN 104439469 A CN104439469 A CN 104439469A CN 201410729383 A CN201410729383 A CN 201410729383A CN 104439469 A CN104439469 A CN 104439469A
- Authority
- CN
- China
- Prior art keywords
- cutting
- spiral
- cutting portion
- round bottom
- cutter
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/28—Features relating to lubricating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/08—Side or top views of the cutting edge
- B23C2210/084—Curved cutting edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to the technical field of cutting tools, and particularly relates to a round bottom milling cutter. The round bottom milling cutter comprises a cutter body, wherein the front end of the cutter body is a cutting part, and the rear end of the cutter body is a cutter handle; the cutting part is provided with a plurality of spiral cutting edges which are distributed uniformly; the spiral cutting edges are in circular arc transition from the front end part of the cutting part toward the axis, so that the front end edge of the cutting part is of an arc structure; the cutting part corresponding to the spiral cutting edges is provided with a spiral chip removing groove; the cutter body is a spiral cutting liquid channel extending from the rear end of the cutter handle to the front end of the cutting part; the cutting liquid channel corresponding to the cutting part is provided with a plurality of branch channels leading to the spiral chip removing groove; branch channel end openings of the branch channels at the groove wall of the chip removing groove are close to the spiral cutting edges, so that a groove or a cavity body at the bottom of an arc corner can be cut directly. The round bottom milling cutter is high in efficiency, and is good in heat dissipation efficiency, and the cutter has long service life.
Description
Technical field
The present invention relates to cutting tool technical field, be specifically related to a kind of round bottom milling cutter.
Background technology
Existing various cutting tool, no matter be cutting slot or process chamber, the bottom margin place of its groove cut or cavity is right angle, in a lot of situation, need groove or cavity bottom edge to be processed into arc angle structure, current various cutters cannot cutting at one time shaping, need multiple cutter coordinate cut successively, waste man-hour, efficiency is low.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned defect, provides a kind of round bottom milling cutter, and directly can cut the groove bottom arc angle or cavity, efficiency is high, and radiating efficiency is good, and cutter life is long.
The technical scheme that the present invention solves the employing of its technical problem is as follows:
A kind of round bottom milling cutter, comprise cutter hub, described cutter hub front end is cutting portion, rear end is handle of a knife, cutting portion is provided with the spiral cutting sword that multiple tracks is evenly arranged, spiral cutting sword makes cutting portion front edge place be arcuate structure in cutting portion front end place to axle center arc transition, arcuate structure is when cutting, directly bottom land edge or cavity bottom edge are cut into arc angle, the corresponding spiral cutting sword place of cutting portion is spiral bit-withdrawing slot, described cutter hub is provided with the spiral cutting fluid passage being extended to cutting portion front end by handle of a knife rear end, cut fluid passage to correspond to cutting portion place and be provided with the shunting that multiple tracks leads to spiral bit-withdrawing slot, shunting is in the shunting port of spiral bit-withdrawing slot cell wall near spiral cutting sword, when cutting, cutting fluid is by cutting fluid passage and shunting flows to spiral cutting sword everywhere, cooling and lubrication is provided when cutting, spiral cutting sword is led in shunting, and everybody makes the thorough of lubrication, and be conducive to the heat produced when cutting that leaves, improve cutting-tool's used life, improve precision and the quality in cutting face.
Further, described cutting portion diameter is greater than shank diameter, is convenient to chip and discharges from spiral bit-withdrawing slot timely.
Further, described cutting fluid passage is twice, and shunting port is uniformly distributed along spiral bit-withdrawing slot, twice cut fluid passage and shunting make cutting fluid along spiral cutting sword distribute evenly, play and better lubricate and radiating effect, leave timely cutting time heat.
Preferably, described spiral cutting sword number is 6 roads, and 6 road spiral cutting swords are uniformly distributed along cutting portion side face, and distribution rationally, ensure that the effect of cutting, cutting force is distributed rationally, avoids collapsing cutter.
The invention has the beneficial effects as follows: adopt such scheme, the front end of this milling cutter cutting portion is arcuate structure, make when cutting slot or cavity, directly the arc angle at bottom land edge or cavity edge processed, 6 road spiral cutting sword distributions rationally, stock-removing efficiency is high, the precision in cutting face and quality good, twice spiral cutting fluid passage is combined with shunting, makes cutting fluid play fully heat radiation and lubrication to spiral cutting sword when cutting, leave heat in time, extends cutting-tool's used life.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the present invention will become apparent.
Fig. 1 is structural representation of the present invention.
Wherein: 1 is spiral cutting sword, and 2 is handle of a knife, 3 for cutting fluid passage, and 4 is shunting, and 4.1 is shunting port.
Detailed description of the invention
Embodiment 1: with reference to a kind of round bottom milling cutter shown in Fig. 1, comprise cutter hub, described cutter hub front end is cutting portion, rear end is handle of a knife 2, the diameter of handle of a knife 2 is less than cutting portion diameter, be convenient to chip discharge in time, improve the quality of cutting, cutting portion is provided with the spiral cutting sword 1 of evenly arranging in 6 roads, spiral cutting sword 1 makes cutting portion front edge place be arcuate structure in cutting portion front end place to axle center arc transition, the arc angle α of arc angle structure is 6 °, arcuate structure is when cutting, directly bottom land edge or cavity bottom edge are cut into arc angle, corresponding spiral cutting sword 1 place of cutting portion is spiral bit-withdrawing slot, cutter hub is provided with the twice spiral cutting fluid passage 3 being extended to cutting portion front end by handle of a knife 2 rear end, cut fluid passage 3 to correspond to cutting portion place and be provided with the shunting 4 that multiple tracks leads to spiral bit-withdrawing slot, shunting 4 is in the shunting port 4.1 of spiral bit-withdrawing slot cell wall near spiral cutting sword, shunting port 4.1 is uniformly distributed along spiral bit-withdrawing slot cell wall, cutting fluid is by cutting fluid passage and shunting flows to spiral cutting sword everywhere, cooling and lubrication are fully provided when cutting, extend cutting-tool's used life, improve precision and the quality in cutting face.
Embodiment 2: with reference to a kind of round bottom milling cutter shown in Fig. 1, comprise cutter hub, described cutter hub front end is cutting portion, rear end is handle of a knife 2, the diameter of handle of a knife 2 is less than cutting portion diameter, be convenient to chip discharge in time, improve the quality of cutting, cutting portion is provided with the spiral cutting sword 1 of evenly arranging in 4 roads, spiral cutting sword 1 makes cutting portion front edge place be arcuate structure in cutting portion front end place to axle center arc transition, the arc angle α of arc angle structure is 10 °, arcuate structure is when cutting, directly bottom land edge or cavity bottom edge are cut into arc angle, corresponding spiral cutting sword 1 place of cutting portion is spiral bit-withdrawing slot, cutter hub is provided with the twice spiral cutting fluid passage 3 being extended to cutting portion front end by handle of a knife 2 rear end, cut fluid passage 3 to correspond to cutting portion place and be provided with the shunting 4 that multiple tracks leads to spiral bit-withdrawing slot, shunting 4 is in the shunting port 4.1 of spiral bit-withdrawing slot cell wall near spiral cutting sword, shunting port 4.1 is uniformly distributed along spiral bit-withdrawing slot cell wall, cutting fluid is by cutting fluid passage and shunting flows to spiral cutting sword everywhere, cooling and lubrication are fully provided when cutting, extend cutting-tool's used life, improve precision and the quality in cutting face.
Embodiment 3: with reference to a kind of round bottom milling cutter shown in Fig. 1, comprise cutter hub, described cutter hub front end is cutting portion, rear end is handle of a knife 2, the diameter of handle of a knife 2 is less than cutting portion diameter, be convenient to chip discharge in time, improve the quality of cutting, cutting portion is provided with the spiral cutting sword 1 of evenly arranging in 8 roads, spiral cutting sword 1 makes cutting portion front edge place be arcuate structure in cutting portion front end place to axle center arc transition, the arc angle α of arc angle structure is 16 °, arcuate structure is when cutting, directly bottom land edge or cavity bottom edge are cut into arc angle, corresponding spiral cutting sword 1 place of cutting portion is spiral bit-withdrawing slot, cutter hub is provided with the twice spiral cutting fluid passage 3 being extended to cutting portion front end by handle of a knife 2 rear end, cut fluid passage 3 to correspond to cutting portion place and be provided with the shunting 4 that multiple tracks leads to spiral bit-withdrawing slot, shunting 4 is in the shunting port 4.1 of spiral bit-withdrawing slot cell wall near spiral cutting sword, shunting port 4.1 is uniformly distributed along spiral bit-withdrawing slot cell wall, cutting fluid is by cutting fluid passage and shunting flows to spiral cutting sword everywhere, cooling and lubrication are fully provided when cutting, extend cutting-tool's used life, improve precision and the quality in cutting face.
The arc angle of the arcuate structure of its cutting portion front end of this milling cutter of different size is different, makes groove or the cavity that can process various arc angle.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, every according in technical spirit of the present invention to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.
Claims (4)
1. a round bottom milling cutter, comprise cutter hub, it is characterized in that: described cutter hub front end is cutting portion, rear end is handle of a knife, cutting portion is provided with the spiral cutting sword that multiple tracks is evenly arranged, spiral cutting sword makes cutting portion front edge place be arcuate structure in cutting portion front end place to axle center arc transition, the corresponding spiral cutting sword place of cutting portion is spiral bit-withdrawing slot, described cutter hub is provided with the spiral cutting fluid passage being extended to cutting portion front end by handle of a knife rear end, cut fluid passage to correspond to cutting portion place and be provided with the shunting that multiple tracks leads to spiral bit-withdrawing slot, shunting is in the shunting port of spiral bit-withdrawing slot cell wall near spiral cutting sword.
2. a kind of round bottom milling cutter according to claim 1, is characterized in that: described cutting portion diameter is greater than shank diameter.
3. a kind of round bottom milling cutter according to claim 1, is characterized in that: described cutting fluid passage is twice, and shunting port is uniformly distributed along spiral bit-withdrawing slot.
4. a kind of round bottom milling cutter according to claim 1, is characterized in that: preferred, described spiral cutting sword number is 6 roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729383.6A CN104439469A (en) | 2014-12-04 | 2014-12-04 | Round bottom milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729383.6A CN104439469A (en) | 2014-12-04 | 2014-12-04 | Round bottom milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104439469A true CN104439469A (en) | 2015-03-25 |
Family
ID=52886654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410729383.6A Pending CN104439469A (en) | 2014-12-04 | 2014-12-04 | Round bottom milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104439469A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328220A (en) * | 2015-12-15 | 2016-02-17 | 常州市海力工具有限公司 | Curved surface formed tool |
| CN108188460A (en) * | 2018-01-22 | 2018-06-22 | 华南理工大学 | It is a kind of based on the molding milling cutter for including spiral coolant flow channel of 3D printing |
| CN110328395A (en) * | 2019-07-22 | 2019-10-15 | 广东工业大学 | Helical end mills are sprayed in a kind of |
| CN110587836A (en) * | 2019-09-19 | 2019-12-20 | 安徽理工大学 | Micro-milling processing method for sapphire surface |
-
2014
- 2014-12-04 CN CN201410729383.6A patent/CN104439469A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328220A (en) * | 2015-12-15 | 2016-02-17 | 常州市海力工具有限公司 | Curved surface formed tool |
| CN108188460A (en) * | 2018-01-22 | 2018-06-22 | 华南理工大学 | It is a kind of based on the molding milling cutter for including spiral coolant flow channel of 3D printing |
| CN110328395A (en) * | 2019-07-22 | 2019-10-15 | 广东工业大学 | Helical end mills are sprayed in a kind of |
| CN110587836A (en) * | 2019-09-19 | 2019-12-20 | 安徽理工大学 | Micro-milling processing method for sapphire surface |
| CN110587836B (en) * | 2019-09-19 | 2021-01-01 | 安徽理工大学 | Micro-milling processing method for sapphire surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |