CN103978255A - Composite milling cutter for machining different-diameter holes - Google Patents
Composite milling cutter for machining different-diameter holes Download PDFInfo
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- CN103978255A CN103978255A CN201410228598.XA CN201410228598A CN103978255A CN 103978255 A CN103978255 A CN 103978255A CN 201410228598 A CN201410228598 A CN 201410228598A CN 103978255 A CN103978255 A CN 103978255A
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Abstract
The invention discloses a composite milling cutter for machining different-diameter holes. The composite milling cutter comprises a cutter handle, a main cooling pipe and a cutting part, wherein the cutter handle is connected with a machine tool, the main cooling pipe is arranged in the cutter handle, and the cutting part is arranged at the front end of the cutter handle; an arc-shaped clamping groove is formed in the middle of the cutter handle, and chip removal grooves are uniformly distributed in the cutting part in a circumferential direction; an assembly wall is formed at the front end of a groove wall among the chip removal grooves, and a second cutter groove for inserting a small-hole milling blade is formed in the front end of the assembly wall; a first cutter groove for inserting a large-hole milling blade is formed in the transition position of the assembly wall and the groove wall, and the assembly wall and the groove wall are stepped; first cooling holes and second cooling holes, which are communicated with the main cooling pipe, are formed in the positions, close to the groove wall, in the chip removal grooves; the first cooling holes and the second cooling holes are respectively higher than the first cutter groove and the second cutter groove. The composite milling cutter can be used for machining the different-diameter holes in one time, a curved edge in the large-hole milling blade can machine a manhole fillet of the top of a small hole, and the phenomenon that the top of the small hole can generate burrs in the process of pulling out the composite milling cutter is avoided. The composite milling cutter has the advantages of high machining efficiency and long service life.
Description
Technical field
The invention belongs to milling cutter field, be specifically related to a kind of composite milling cutter of processing different diameter hole.
Background technology
Milling cutter, for Milling Process, have the rotary cutter of one or more cutters tooth.When work, each cutter tooth cuts the surplus of workpiece successively off and on.Milling cutter is mainly used in processing plane, step, groove, profiled surface and cut-out workpiece etc. on milling machine.
Milling cutter can be further divided into again according to purposes, cylindrical milling cutter, face milling cutters, slotting cutter, face and side cutter, angle milling cutter, metal saw and T shape milling cutter.Milling cutter can be divided into monoblock type milling cutter, the tooth-like milling cutter of entirety weldering, inserted tooth milling cutter, indexable formula milling cutter according to the assembling form of milling cutter and cutter hub.
Along with the development of milling cutter industry, milling cutter is also used in hole processing and pocket machining direction widely.The Milling Process in hole is widely used in machining industry, is especially applied in space industry, automobile engine field and complex equipment field in the processing in complicated hole.The processing of various composite holes is more and more higher to the requirement of machine tool and cutter, not only will meet requirement on machining accuracy and also will ensure cutter life, and processing cost is low simultaneously.
At present, the processing of different diameter hole mainly adopts alloy bit and the combined form of slotting cutter to carry out, first with alloy bit successively hole, roughing small-bore and hole, large aperture, again with slotting cutter successively hole, fine finishining small-bore and hole, large aperture, application said method is processed not only long processing time to different diameter hole, Cutter wear is serious, and the replacing cutter that takes place frequently causes processing cost high.
Summary of the invention
The present invention is that the problem that solves prior art existence proposes, and its objective is a kind of composite milling cutter of processing different diameter hole is provided.
Technical scheme of the present invention is: a kind of composite milling cutter of processing different diameter hole, comprise the handle of a knife being connected with lathe, the main cooling tube of handle of a knife inside, the cutting portion of front end, handle of a knife middle part forms arcuation draw-in groove, in cutting portion along circumferential uniform chip area, cell wall front end between chip area forms fit walls, fit walls front end is provided with the second cutter groove that inserts milling aperture blade, the transition position of fit walls and cell wall is provided with the first cutter groove that inserts milling macropore blade, described fit walls and cell wall are stepped, in chip area, form near cell wall place the first Cooling Holes being communicated with main cooling tube, the second Cooling Holes, the first described Cooling Holes is higher than the first cutter groove, the second Cooling Holes is higher than the second cutter groove.
Described milling macropore blade comprises sickle-shaped the first installation portion and opens wide place's side edge on coherent first time side edge, Circular Nose Cutting Edge, the first chisel edge, first mutually successively, and described the first cutter groove coordinates with the first installation portion.
Described milling aperture blade comprises the second chisel edge, the second side edge that the second installation portion of arcuation links up successively mutually with unlimited place, and described the second cutter groove coordinates with the second installation portion.
Cutter blade is connected in cutter groove by silver-alloy brazing, and described milling macropore blade, milling aperture blade are diamond blade.
Described chip area and cutting portion joint face are arc surface.
Described the first Cooling Holes, the second Cooling Holes tilt to be communicated with main cooling tube, and the first Cooling Holes, the second Cooling Holes all tilt to cutting portion front end.
Composite milling cutter of the present invention can disposable processing different diameter hole, simplify operation, improve production efficiency, Circular Nose Cutting Edge in milling macropore blade can process the hand-hole fillet at aperture top, and avoid in the process of extracting composite milling cutter aperture top can produce the phenomenon of burr, working (machining) efficiency of the present invention is high, long service life.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is the partial enlarged drawing of A portion in Fig. 1 of the present invention;
Fig. 3 is upward view of the present invention;
Fig. 4 is the structural representation of milling macropore blade in the present invention;
Fig. 5 is the structural representation of milling aperture blade in the present invention.
Wherein:
The main cooling tube of 1 handle of a knife 2
3 draw-in groove 4 cutting portions
5 chip area 6 first Cooling Holes
7 second Cooling Holes 8 fit walls
9 milling macropore blade 10 first cutter grooves
11 milling aperture blade 12 second cutter grooves
13 cell wall 14 first installation portions
15 first times side edge 16 Circular Nose Cutting Edges
Side edge on 17 first chisel edges 18 first
19 second installation portion 20 second chisel edges
21 second side edges.
Detailed description of the invention
Below, with reference to drawings and Examples, the present invention is described in detail:
As shown in Fig. 1 ~ 5, a kind of composite milling cutter of processing different diameter hole, comprise the handle of a knife 1 being connected with lathe, the main cooling tube 2 of handle of a knife 1 inside, the cutting portion 4 of front end, handle of a knife 1 middle part forms arcuation draw-in groove 3, in cutting portion 4 along circumferential uniform chip area 5, cell wall front end between chip area 5 forms fit walls 8, fit walls 8 front ends are provided with the second cutter groove 12 that inserts milling aperture blade 11, fit walls 8 is provided with the transition position of cell wall 13 the first cutter groove 10 that inserts milling macropore blade 9, described fit walls 8 is stepped with cell wall 13, in chip area 5, form near cell wall 13 places the first Cooling Holes 6 being communicated with main cooling tube 2, the second Cooling Holes 7, the first described Cooling Holes 6 is higher than the first cutter groove 10, the second Cooling Holes 7 is higher than the second cutter groove 12.
Described milling macropore blade 9 is used for processing the large diameter hole in different diameter hole, and described milling aperture blade 11 is used for processing the little inner diameter hole in different diameter hole.
Described milling macropore blade 9 comprises sickle-shaped the first installation portion 14 and opens wide place's side edge 18 on coherent first time side edge 15, Circular Nose Cutting Edge 16, the first chisel edge 17, first mutually successively, and described the first cutter groove 10 coordinates with the first installation portion 14.
Described milling aperture blade 11 comprises the second chisel edge 20, the second side edge 21 that the second installation portion 19 of arcuation links up successively mutually with unlimited place, and described the second cutter groove 12 coordinates with the second installation portion 19.
Cutter blade is connected in cutter groove by silver-alloy brazing, and described milling macropore blade 9, milling aperture blade 11 are diamond blade.
Described chip area 5 is arc surface with cutting portion 4 joint faces.
Described the first Cooling Holes 6, the second Cooling Holes 7 tilt to be communicated with main cooling tube 2, and the first Cooling Holes 6, the second Cooling Holes 7 all tilt to cutting portion 4 front ends.
Handle of a knife 1 in the present invention is preferably BT40 handle of a knife.
In the present invention, the first chisel edge 17 right-hand members of milling macropore blade 9 are downward-sloping, and described the first chisel edge 17 can be processed into the conical surface that tapering is 1:6 by the transition face between large hole, footpath and diameter holes in different diameter hole, and the assembling of being convenient to different diameter hole is used.
In the present invention, milling macropore blade 9, milling aperture blade 11 cut position and all form cutting anterior angle α and back angle β.
The function of described cutting anterior angle α is to make cutting edge more sharp, reduces cutting deformation and reduces cutting force, and excessive cutting anterior angle can affect intensity and the heat radiation of cutting edge.And in the time of processing different materials, the anterior angle of cutting is slightly different, during as milling steel part, cutting anterior angle is 10 ° ~ 20 °; When milling cast iron, cutting anterior angle is 5 ° ~ 15 °, and when milling carbide alloy, cutting anterior angle is 5 ° ~ 10 °, milling macropore blade 9 in the present invention, the cutting anterior angle α that milling aperture blade 11 cuts position get smaller value in scope allowable, extend the service life of cutting edge.
Described back angle β is mainly the friction reducing between rear knife face and finished work, thereby improves the fineness of surface of the work, and the back angle β in the present invention gets higher value in scope allowable, thereby improves the quality of workpiece.
Composite milling cutter of the present invention can disposable processing different diameter hole, simplify operation, improve production efficiency, Circular Nose Cutting Edge in milling macropore blade can process the hand-hole fillet at aperture top, and avoid in the process of extracting composite milling cutter aperture top can produce the phenomenon of burr, working (machining) efficiency of the present invention is high, long service life.
Claims (6)
1. process the composite milling cutter of different diameter hole for one kind, comprise the handle of a knife (1) being connected with lathe, the main cooling tube (2) that handle of a knife (1) is inner, the cutting portion (4) of front end, it is characterized in that: handle of a knife (1) middle part forms arcuation draw-in groove (3), in cutting portion (4) along circumferential uniform chip area (5), cell wall front end between chip area (5) forms fit walls (8), fit walls (8) front end is provided with the second cutter groove (12) that inserts milling aperture blade (11), fit walls (8) is provided with the transition position of cell wall (13) the first cutter groove (10) that inserts milling macropore blade (9), described fit walls (8) is stepped with cell wall (13), in chip area (5), locate to form near cell wall (13) the first Cooling Holes (6) being communicated with main cooling tube (2), the second Cooling Holes (7), described the first Cooling Holes (6) is higher than the first cutter groove (10), the second Cooling Holes (7) is higher than the second cutter groove (12).
2. a kind of composite milling cutter of processing different diameter hole according to claim 1, it is characterized in that: described milling macropore blade (9) comprises sickle-shaped the first installation portion (14) and open wide place's side edge (18) on coherent first time side edge (15), Circular Nose Cutting Edge (16), the first chisel edge (17), first mutually successively, described the first cutter groove (10) coordinates with the first installation portion (14).
3. a kind of composite milling cutter of processing different diameter hole according to claim 1, it is characterized in that: described milling aperture blade (11) comprises the second chisel edge (20), the second side edge (21) that second installation portion (19) of arcuation links up successively mutually with unlimited place, and described the second cutter groove (12) coordinates with the second installation portion (19).
4. according to the composite milling cutter of any one processing different diameter hole described in claim 2 or 3, it is characterized in that: cutter blade is connected in cutter groove by silver-alloy brazing, and described milling macropore blade (9), milling aperture blade (11) are diamond blade.
5. a kind of composite milling cutter of processing different diameter hole according to claim 1, is characterized in that: described chip area (5) is arc surface with cutting portion (4) joint face.
6. a kind of composite milling cutter of processing different diameter hole according to claim 1, it is characterized in that: described the first Cooling Holes (6), the second Cooling Holes (7) tilt to be communicated with main cooling tube (2), and the first Cooling Holes (6), the second Cooling Holes (7) all tilt to cutting portion (4) front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228598.XA CN103978255B (en) | 2014-05-28 | 2014-05-28 | Composite milling cutter for machining different-diameter holes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228598.XA CN103978255B (en) | 2014-05-28 | 2014-05-28 | Composite milling cutter for machining different-diameter holes |
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| CN103978255A true CN103978255A (en) | 2014-08-13 |
| CN103978255B CN103978255B (en) | 2017-05-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907619A (en) * | 2015-06-24 | 2015-09-16 | 昆山科森科技股份有限公司 | MCD arc-surface-milling cutter |
| CN106964826A (en) * | 2017-05-11 | 2017-07-21 | 天津大学 | Helical milling counter boring rounding integrated cutter |
| CN107138779A (en) * | 2016-03-01 | 2017-09-08 | 北新集团建材股份有限公司 | A kind of plate milling device |
| CN109108348A (en) * | 2018-10-12 | 2019-01-01 | 广州汇专工具有限公司 | A kind of milling cutter construction and milling cutter tool |
| CN112692527A (en) * | 2020-12-17 | 2021-04-23 | 昆山市优捷科自动化设备有限公司 | Machining method of cutting knife saw |
| CN115178780A (en) * | 2022-09-08 | 2022-10-14 | 成都永峰科技有限公司 | Aviation thin-wall part milling device |
| CN118543872A (en) * | 2024-07-30 | 2024-08-27 | 沈阳新宝能科技有限公司 | Shaping milling cutter for stator blade machining |
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| CN201253705Y (en) * | 2008-08-25 | 2009-06-10 | 中冶宝钢技术服务有限公司 | Milling machine cutter bar |
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| CN102717138A (en) * | 2012-06-01 | 2012-10-10 | 上海交通大学 | Re-constructable formed milling cutter for fine machining of circular-arc-shaped curved mortise of wheel disc |
| CN202824794U (en) * | 2012-09-21 | 2013-03-27 | 海门市沪海有色铸造有限公司 | Inner conductor bearing surface machining tool for high-voltage electric main bus support cylinder |
| CN202951914U (en) * | 2012-11-26 | 2013-05-29 | 四平市方向机械有限公司 | Shell notch chamfering tool |
| CN203356695U (en) * | 2013-07-31 | 2013-12-25 | 大连交通大学 | Combined machining cutter |
| CN203459732U (en) * | 2013-09-16 | 2014-03-05 | 无锡市蠡湖铸业有限公司 | One-step forming cutter for secondary air inlet of pressurizer enclosure |
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| EP0715917A1 (en) * | 1994-12-06 | 1996-06-12 | Izumi Industry Kabushiki Kaisha | Milling cutter for T shaped groove |
| CN2825180Y (en) * | 2005-09-16 | 2006-10-11 | 哈尔滨量具刃具集团有限责任公司 | Turnable screw end mill |
| EP2014398A1 (en) * | 2007-06-05 | 2009-01-14 | Sandvik Intellectual Property AB | An indexable end-milling insert |
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| JP2010055561A (en) * | 2008-08-29 | 2010-03-11 | Seiko Instruments Inc | Electronic dictionary, retrieval method in electronic dictionary and program |
| WO2010055561A1 (en) * | 2008-11-13 | 2010-05-20 | オーエスジー株式会社 | Throw-away cutting rotary tool |
| CN201871773U (en) * | 2010-10-25 | 2011-06-22 | 常州埃特法斯工具有限公司 | Four-blade molding interior-cooling cutter |
| CN102717138A (en) * | 2012-06-01 | 2012-10-10 | 上海交通大学 | Re-constructable formed milling cutter for fine machining of circular-arc-shaped curved mortise of wheel disc |
| CN202824794U (en) * | 2012-09-21 | 2013-03-27 | 海门市沪海有色铸造有限公司 | Inner conductor bearing surface machining tool for high-voltage electric main bus support cylinder |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907619A (en) * | 2015-06-24 | 2015-09-16 | 昆山科森科技股份有限公司 | MCD arc-surface-milling cutter |
| CN107138779A (en) * | 2016-03-01 | 2017-09-08 | 北新集团建材股份有限公司 | A kind of plate milling device |
| CN106964826A (en) * | 2017-05-11 | 2017-07-21 | 天津大学 | Helical milling counter boring rounding integrated cutter |
| CN106964826B (en) * | 2017-05-11 | 2019-06-18 | 天津大学 | Helical milling-counter boring-rounded corner integrated cutter |
| CN109108348A (en) * | 2018-10-12 | 2019-01-01 | 广州汇专工具有限公司 | A kind of milling cutter construction and milling cutter tool |
| CN112692527A (en) * | 2020-12-17 | 2021-04-23 | 昆山市优捷科自动化设备有限公司 | Machining method of cutting knife saw |
| CN115178780A (en) * | 2022-09-08 | 2022-10-14 | 成都永峰科技有限公司 | Aviation thin-wall part milling device |
| CN118543872A (en) * | 2024-07-30 | 2024-08-27 | 沈阳新宝能科技有限公司 | Shaping milling cutter for stator blade machining |
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| CN103978255B (en) | 2017-05-17 |
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