CN102350531B - Small ball-end milling cutter - Google Patents
Small ball-end milling cutter Download PDFInfo
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- CN102350531B CN102350531B CN 201110283895 CN201110283895A CN102350531B CN 102350531 B CN102350531 B CN 102350531B CN 201110283895 CN201110283895 CN 201110283895 CN 201110283895 A CN201110283895 A CN 201110283895A CN 102350531 B CN102350531 B CN 102350531B
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- arc cutting
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- circular
- milling cutter
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Abstract
The invention relates to a small ball-end milling cutter which is composed of a cutter clamping handle, a cutting part and a transition part located between the cutter clamping handle and the cutting part, wherein multiple arc cutting edges are uniformly distributed on the cutting part; the ends of the arc cutting edges are intersected on the vertex of the milling cutter; and a ball-end cutter surface is arranged between two adjacent arc cutting edges. The small ball-end milling cutter is characterized in that: each arc cutting edge and the spin axis of the ball-end milling cutter are on the same plane, and the front angle [alpha] of each arc cutting edge is equal negative value, the central angle [beta] of each arc cutting edge is greater than or equal to 90 degrees and less than or equal to 120 degrees, and the cutting radius of each arc cutting edge is greater or equal to 0.01 mm and less than or equal to 1 mm; and the ball-end cutter surface is a ruled surface. By adopting the small ball-end milling cutter provided by the invention, the preparation efficiency is high, and relatively high geometric accuracy of the cutting edge can be obtained easily; and the small ball-end milling cutter is particularly applicable to the micro milling of a hard and fragile workpiece with a complicated curve shape so as to obtain high surface quality and high cutting efficiency.
Description
Technical field
The present invention relates to a kind of small-sized rose cutter, belong to field of machining.
Background technology
Along with the continuous development of micro-nano technology, Micrometer-Nanometer Processing Technology becomes current manufacturing industry one of active research focus the most as realizing its key technologies for application and important foundation.Exist during at present industry is made the small-sized and meso-scale(size of a large amount of three-dimensionals between several microns to hundreds of microns) complex characteristic of structure, requirement has high geometric accuracy and surface roughness, for these requirements, mechanical minuteness milling processing has the irreplaceable precision of other fine machining methods and flexibilities such as electrochemistry.In mechanical minuteness milling field, micro-nano machining tool is succeeded in developing and commercialization in Germany, Japan and the U.S. etc., but used milling cutter also is in the starting stage on these micro-nano machining tools, generally be that large-scale cutter miniaturization is obtained, the defective that has is as follows: the anterior angle of large-scale milling cutter generally be on the occasion of, make the minuteness milling tool of miniaturization also have positive rake angle, make that not only these minuteness milling tool rigidity are poor, and especially be not suitable for the microfabrication hard brittle material, be difficult to form smear metal and produce high-quality cutting surface; In the microminiaturized process of large-scale milling cutter, because the cutting edge feature affects, be difficult to miniaturization to 1 millimeter with interior radius of clean-up; The small-sized rose cutter that miniaturization gets because there is complicated geometric properties in rose cutter itself, makes that manufacturing efficient is low, and is difficult to obtain high-precision cutting edge during fabrication; Therefore the fine rose cutter that gets of miniaturization is when processing has the extra high micro concavo-convex formula of required precision curved surface features part, and machining accuracy is difficult to guarantee.
What research and development were suitable for the processing of mechanical minuteness milling has high rigidity, high accuracy and a high efficiency small-sized milling cutter, for the innovative development that promotes milling cutter, particularly significant for the development that promotes the minuteness milling technology.
Summary of the invention
The object of the present invention is to provide and a kind ofly can overcome above-mentioned defective, small-sized rose cutter that machining accuracy is high.Its technical scheme is:
A kind of small-sized rose cutter, by the cutter grip shank, cutting tip and the transition portion between cutter grip shank and cutting tip constitute, wherein be evenly equipped with a plurality of circular-arc cutting edges on the cutting tip, the head end of a plurality of circular-arc cutting edges intersects at the summit of milling cutter, be the bulb knife face between the adjacent two circular-arc cutting edges, namely along the milling cutter direction of rotation, cutting face behind the bulb of a circular-arc cutting edge, be the preceding cutting face of bulb of next circular-arc cutting edge, it is characterized in that: each circular-arc cutting edge all with the rotation copline of rose cutter, the negative value of each circular-arc cutting edge anterior angle α for equating, and central angle β≤120 of 90 °≤circular-arc cutting edge °, the radius of clean-up of 0.01 millimeter≤circular-arc cutting edge≤1 millimeter; The bulb knife face adopts ruled surface.
Described small-sized rose cutter, the anterior angle α of circular-arc cutting edge is greater than negative 70 °.
Described small-sized rose cutter is equipped with chip area on each bulb knife face.
The present invention compared with prior art, its advantage is:
1, because the anterior angle of each circular-arc cutting edge is negative value, make the rigidity height of small-sized milling cutter, be conducive to obtain high dimensional accuracy, and in mechanical minuteness milling processing, be conducive to generate smear metal, when especially processing has the hard brittle material workpiece of complex-curved feature, be conducive to form smear metal and generate high-quality cutting surface;
2,0.01 millimeter to 1 millimeter radius of clean-up is more suitable in the part processing with fine feature the present invention;
3, circular-arc cutting edge, simple structure is conducive to obtain the high accuracy of manufacture, makes the present invention be more suitable for the part that has the extra high micro concavo-convex formula of required precision curved surface features in minuteness milling processing;
4, the bulb knife face all adopts ruled surface, makes the present invention during fabrication, is conducive to obtain to have the circular-arc cutting edge of high accuracy geometry, makes efficient and also improves greatly.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that A shown in Figure 1 is to view;
Fig. 3 is B-B profile shown in Figure 1.
Among the figure: 1, cutter grip shank 2, transition portion 3, circular-arc cutting edge 4, bulb knife face 5, chip area
The specific embodiment
In the embodiment shown in Fig. 1-3: constituted by cutter grip shank 1, cutting tip and the transition portion between cutter grip shank 1 and cutting tip 2, wherein be evenly equipped with a plurality of circular-arc cutting edges 3 on the cutting tip, the head end of a plurality of circular-arc cutting edges 3 intersects at the summit of milling cutter, is bulb knife face 4 between the adjacent two circular-arc cutting edges 3; The anterior angle α of each circular-arc cutting edge 3 is negative 45 °, and the central angle β of circular-arc cutting edge 3 is 114 °, and the radius of clean-up of circular-arc cutting edge 3 is 0.2 millimeter; Bulb knife face 4 adopts ruled surface.Be equipped with chip area 5 on each bulb knife face 4.
Claims (3)
1. small-sized rose cutter, by cutter grip shank (1), cutting tip and the transition portion (2) that is positioned between cutter grip shank (1) and the cutting tip constitute, wherein be evenly equipped with a plurality of circular-arc cutting edges (3) on the cutting tip, the head end of a plurality of circular-arc cutting edges (3) intersects at the summit of milling cutter, be bulb knife face (4) between the adjacent two circular-arc cutting edges (3), it is characterized in that: each circular-arc cutting edge (3) all with the rotation copline of rose cutter, the negative value of each circular-arc cutting edge (3) anterior angle α for equating, and central angle β≤120 of 90 °≤circular-arc cutting edge (3) °, radius of clean-up≤1 of 0.01 millimeter≤circular-arc cutting edge (3) millimeter; Bulb knife face (4) adopts ruled surface.
2. small-sized rose cutter as claimed in claim 1 is characterized in that: the anterior angle α of circular-arc cutting edge (3) is greater than negative 70 °.
3. small-sized rose cutter as claimed in claim 1 is characterized in that: be equipped with chip area (5) on each bulb knife face (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110283895 CN102350531B (en) | 2011-09-22 | 2011-09-22 | Small ball-end milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110283895 CN102350531B (en) | 2011-09-22 | 2011-09-22 | Small ball-end milling cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102350531A CN102350531A (en) | 2012-02-15 |
| CN102350531B true CN102350531B (en) | 2013-09-18 |
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ID=45574235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110283895 Active CN102350531B (en) | 2011-09-22 | 2011-09-22 | Small ball-end milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102350531B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064788A (en) * | 2019-05-22 | 2019-07-30 | 汇专绿色工具有限公司 | A kind of cutter head structure and cutting tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5833402A (en) * | 1994-05-19 | 1998-11-10 | Societe Europeenne De Propulsion | Removable copying cutter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0753853Y2 (en) * | 1988-07-11 | 1995-12-13 | 三菱マテリアル株式会社 | Ball end mill |
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2011
- 2011-09-22 CN CN 201110283895 patent/CN102350531B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5833402A (en) * | 1994-05-19 | 1998-11-10 | Societe Europeenne De Propulsion | Removable copying cutter |
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| Publication number | Publication date |
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| CN102350531A (en) | 2012-02-15 |
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