CN106964826A - Helical milling counter boring rounding integrated cutter - Google Patents
Helical milling counter boring rounding integrated cutter Download PDFInfo
- Publication number
- CN106964826A CN106964826A CN201710329821.3A CN201710329821A CN106964826A CN 106964826 A CN106964826 A CN 106964826A CN 201710329821 A CN201710329821 A CN 201710329821A CN 106964826 A CN106964826 A CN 106964826A
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- CN
- China
- Prior art keywords
- cutting edge
- rounding
- helical milling
- cutting
- counter boring
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- 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
- 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
- B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses helical milling counter boring rounding integrated cutter, including the cutter hub being made up of handle of a knife and cutting tip, cutting tip includes the helical milling cutting edge portion set gradually from front to back, helical milling cuts neck, rounding cutting edge portion and counter boring cutting edge portion, counter boring cutting edge portion connects with handle of a knife, helical milling cutting edge portion includes the three helical milling cutting edges set along cutter hub circumferencial direction, rounding cutting edge portion includes the three rounding cutting edges set along cutter hub circumferencial direction, counter boring blade includes the three counter boring cutting edges set along cutter hub circumferencial direction, the blade of three rounding cutting edges is at helical milling cutting neck unslotted, the tangent setting of external diameter and each rounding cutting edge rear end and the tangent setting in a counter boring cutting edge front end being correspondingly arranged that neck is cut in rounding cutting edge front end with helical milling, three rounding cutting edges and helical milling cutting edge portion stagger setting.Machining accuracy is improved using this cutter.
Description
Technical field
The present invention relates to the processing helical milling of 4mm~12mm diametric holes, counter boring, the integral dedicated tool of rounding, especially
It is related to processing carbon fibre composite/titanium alloy module laminated body helical milling, counter boring, the dormant bolt connection of rounding integration
Hole dedicated tool.
Background technology
With the development of aircraft industry, conventional borehole can not meet actual requirement, and helical milling is a kind of new processing
Mode, crudy is more preferable, more efficient.The application of carbon fibre composite/titanium alloy module laminated body is more next in process
It is more, in order to ensure processing efficiency, assembling quality and surface quality, integrated drilling should be carried out to laminated material, to lamination
The application of component 4mm~12mm diametric hole helical milling dedicated tools is more and more frequent.It is the pneumatic property for meeting aircraft simultaneously, folds
Use countersunk fastener bolt connection more the connection of layer component, thus need to carry out counter boring and carry out bottom outlet and counter boring junction
Rounding.It is domestic current for module laminated body helical milling, counter boring, integrated research of the dedicated tool without correlation of rounding.
Entitled " machining composite material small diameter bore helical milling dedicated tool ", Patent No.
201510083667.7 Chinese patent disclose herein below：The blade of cutter differed provided with angle two-by-two first, the
2nd, the 3rd cutting edge, the sword length of three cutting edges is different, and the rear knife face of three cutting edges is the dual rear knife face with land,
The shear blade skew center cutter linear distance of three cutting edges, the helical angle formed by three cutting edges is different.The cutter is in processing
Behind complete hole, to carry out dormant bolt connection, subsequently still need to be processed using counter boring cutter, and need the connection of device to hole and counter boring
Place carries out rounding, so as to obtain preferable dimple rivet hole quality.But add man-hour requirement more tool changing carrying out counter boring, rounding
Tool, can produce many errors.Firstly, since changing the deviation of tool axis after counter boring cutter, bottom outlet axle can be produced after processing
The eccentric error of line and counter boring axially bored line；Secondly as changing the deviation of knife length after counter boring cutter, counter boring depth can produce depth
Error；Finally, it can not enter well in bottom outlet hole when guide rod diameter is identical with aperture during rounding, and guide rod diameter is less than
The rounding processed during aperture can produce seamed edge with bottom orifice.
In entitled " a kind of composite special cutter for spiral milling dimples ", Patent No. 201210396891.8
State's patent discloses herein below：Cutter is made up of integrally formed knife bar and cutting tip, the maximum outside diameter of cutting tip with
The diameter of knife bar is identical, and wherein cutting tip includes being provided with helicla flute between three structure identical cutters tooth, cutter tooth, and equidistantly
Distribution；Cutter front end cutting edge formation cutter drift angle is 100 °~120 ° of Ф.Cutting edge is all using the dual rear knife face for having land
Form, and with one group of jagged cutting tooth on the land of the dual rear knife face of cutting edge.The cutter is by general counter boring knife
Tool is converted to helical milling counter boring cutter, but there are still many problems.First, there is the bias after tool changing by mistake in the cutter
Difference and counter boring depth error；Secondly, the cutter does not have rounding function, the dimple rivet hole processed can not well with fastening bolt
Coordinate, obvious concentrated stress can be produced.
The content of the invention
It is an object of the invention to overcome the shortcoming of prior art there is provided one kind by helical milling cutter, counter boring cutter, fall
The function of fillet cutter is combined as a whole, and substantially increases helical milling-counter boring-rounding integrated cutter of machining accuracy.
Helical milling-counter boring-rounding integrated cutter, including the cutter hub being made up of handle of a knife and cutting tip, described cuts
Cut helical milling cutting edge portion, helical milling cutting neck, rounding cutting edge portion that part includes setting gradually from front to back
With counter boring cutting edge portion, described counter boring cutting edge portion connects with handle of a knife, and described helical milling cutting edge portion is included along cutter hub
Three helical milling cutting edges that circumferencial direction is set, described rounding cutting edge portion includes what is set along cutter hub circumferencial direction
Three rounding cutting edges, described counter boring blade includes the three counter boring cutting edges set along cutter hub circumferencial direction, described
The blade of three rounding cutting edges be in helical milling cutting neck unslotted at, each rounding cutting edge front end with
The tangent setting of external diameter of helical milling cutting neck and each rounding cutting edge rear end and a counter boring being correspondingly arranged
Cutting edge front end is tangent to be set, and three described counter boring cutting edges are located at the bus position of same frustum, and described three fall
Fillet cutting edge and helical milling cutting edge portion stagger setting, and counter boring cutting edge and rounding cutting edge chip area are wholely set simultaneously
Communicated with helical milling cutting edge chip area, described helical milling cutting edge portion diameter cuts recess diameter phase with helical milling
Together, described helical milling cutting edge portion diameter is smaller than the diameter of handle of a knife, and rounding cutting edge blade is that arc structure falls simultaneously
Fillet cutting edge tip and tool axis are at grade.
It is of the invention compared with existing invention, the present invention has the advantage that：
This cutter carries out spiral using the function of helical milling cutter, counter boring cutter, rounding cutter is combined as a whole
Hole milling feed motion completes counter boring and rounding, can a procedure process counter boring be connected with dormant bolt required for cooperation
Hole.Eccentric axis error, helical milling cutter and the counter boring knife of the bottom outlet axis caused by tool changing and dimple rivet hole can be greatly reduced
The problem of there is seamed edge with bottom outlet junction in counter boring depth error and rounding caused by the tool long error of knife.It can make simultaneously
The dimple rivet hole of different-diameter required for being gone out with a tool sharpening, can greatly reduce required number of cutters.
Brief description of the drawings
Fig. 1 is processing carbon fibre composite/titanium alloy module laminated body helical milling-counter boring-rounding one of the present invention
Body cutter overall structure diagram；
Fig. 2 is the partial enlarged drawing that cutter rounding blade shown in Fig. 1 and helical milling cut neck；
Fig. 3 is the A-A profiles of the cutter shown in Fig. 1；
Fig. 4 is the B-B profiles of the cutter shown in Fig. 3；
Fig. 5 is the C-C profiles of the cutter shown in Fig. 3；
Fig. 6 is cutter three-dimensional model diagram；
Fig. 7 is the schematic shapes portalled using the tool sharpening of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail.
As shown in drawings, helical milling-counter boring-rounding integrated cutter of the invention, including by handle of a knife 5 and cutting tip
The cutter hub of composition, described cutting tip includes helical milling cutting edge portion 1, the helical milling cutting set gradually from front to back
Neck 2, rounding cutting edge portion 3 and counter boring cutting edge portion 4.Described counter boring cutting edge portion connects with handle of a knife, described spiral
Hole milling cutting edge portion includes the three helical milling cutting edges set along cutter hub circumferencial direction, described rounding cutting edge portion bag
The three rounding cutting edges set along cutter hub circumferencial direction are included, described counter boring blade includes what is set along cutter hub circumferencial direction
Three counter boring cutting edges.The blade of three described rounding cutting edges is at helical milling cutting neck unslotted, with true
Protect and obtain complete rounding cutting edge portion and make it that cutting edge portion front end and the external diameter of helical milling blade are tangent.Each falls
Fillet cutting edge front end with helical milling cut neck external diameter it is tangent setting and each rounding cutting edge rear end with
One counter boring cutting edge front end being correspondingly arranged is tangent to be set.Three described counter boring cutting edges are located at the bus of same frustum
Position.Described three rounding cutting edges and helical milling cutting edge portion stagger settings, and counter boring cutting edge and rounding are cut
Sword chip area is wholely set and communicated with helical milling cutting edge chip area, it is ensured that chip removal is unobstructed.Described helical milling cutting
Diameter at edge part D1 is identical with helical milling cutting recess diameter D2, can take 4~6mm, described helical milling cutting edge portion is straight
Footpath is smaller than the diameter D3 of handle of a knife, and the diameter D3 of the handle of a knife is on the premise of counter boring cutting edge portion size is met according to clamping needs
Designed, designed.
Preferably to cause the dimple rivet hole that counter boring cutting edge portion is processed with rounding cutting edge portion and rounding boundary
Seamed edge is occurred without, by rounding cutting edge portion with being designed as tangent, rounding cutting edge blade at the point of a knife of counter boring cutting edge portion
The i.e. no helical angle of arc structure for being R1 for radius, while rounding cutting edge tip and tool axis are at grade.
The cutter is processed by a bar, and it has in a center of rotation axis a, process around axis progress spiral shell
Feed motion is revolved, so as to obtain the cutting function that helical milling, spiral rounding, spiral counter boring are combined into one.
It is preferred that described three helical milling cutting edge between spacing it is unequal, between three rounding cutting edges
Spacing between spacing and three counter boring cutting edges is equal, i.e., axial rotating clamp angle θ is 120 ° between adjacent counter boring cutting edge.From
And can effectively solve the problems, such as chatter and counter boring cutting edge portion in helical milling working angles and rounding cutting edge portion
Processing problems.
For preferably chip removal, rounding cutting edge and counter boring cutting edge are using double relief angle cutting edges.Rounding cutting edge
Tread a1, rounding cutting front edge angle beta 1, the first relief angle of rounding cutting edge γ 1, the second relief angle of rounding cutting edge γ 2,
Counter boring cutting edge tread a2, counter boring cutting edge cutting front edge angle beta 2, the first relief angle of counter boring cutting edge γ 3, counter boring cutting edge the
The correlation values such as two relief angle γ 4 can be set according to actual needs.
The shank length L4 of cutter takes 35~45mm according to bar and convenient mounting and clamping designed, designed；Cutter helical milling
Cutting edge portion length L1 takes 5~12mm according to the carbon fibre composite processed/titanium alloy lamination plate thickness designed, designed；
Helical milling cuts neck L2 according to counter boring blade and the chip area size designed, designed of rounding blade, takes 2.5~4mm；Spiral shell
The helical angle for revolving hole milling blade is the designed, designeds as the case may be of α 1, takes 28 °~34 °.
Rounding cutting edge portion is in position of the helical milling cutting neck without escape in this cutter, so that
Rounding blade and the hole that helical milling cutting edge portion is processed are tangent, and then can greatly reduce the deviation of rounding.Make
Obtain in process, helical milling cutting edge, rounding cutting edge, the continuous cutting of counter boring cutting edge formation one can be made
Sword, and make cutting force steadily be incremented by, is not likely to produce layering, tear, burr, wire drawing, collapses the defects such as block during machining composite material.
The counter boring cutting edge of this cutter is used for the gradient of control processing counter boring, control with the angle α 2 of helical milling cutting edge
Fig. 7, processes angle [alpha] 3 on workpiece.The angle [alpha] 4 of the angle corresponding diagram 7 for the dimple rivet hole that counter boring cutting edge portion is processed,,
According to dormant bolt designed, designed joined together, 100 °~130 ° are taken.Rounding cutting edge portion R1 correspond to work pieces process in Fig. 7
The rounding R3 gone out, according to dormant bolt designed, designed joined together, radius takes 0.5~1.0mm.
The above description of this invention is only schematical, rather than restricted.So, embodiments of the present invention
It is not limited to above-mentioned embodiment.If one of ordinary skill in the art is enlightened by it, the present invention is not being departed from
In the case of objective and claimed scope, make other changes or modification belongs to protection scope of the present invention.
Claims (2)
1. helical milling-counter boring-rounding integrated cutter, including the cutter hub being made up of handle of a knife and cutting tip, it is characterised in that：
Described cutting tip includes the helical milling cutting edge portion set gradually from front to back, helical milling cutting neck, rounding
Cutting edge portion and counter boring cutting edge portion, described counter boring cutting edge portion connect with handle of a knife, described helical milling cutting edge portion bag
The three helical milling cutting edges set along cutter hub circumferencial direction are included, described rounding cutting edge portion is included along cutter hub circumference side
To three rounding cutting edges of setting, described counter boring blade includes cutting along three counter borings that cutter hub circumferencial direction is set
Sword, the blade of three described rounding cutting edges is at helical milling cutting neck unslotted, the cutting of each rounding
Sword front end with helical milling cut neck external diameter it is tangent setting and each rounding cutting edge rear end is corresponding with one
The counter boring cutting edge front end of setting is tangent to be set, and three described counter boring cutting edges are located at the bus position of same frustum, institute
Three rounding cutting edges stating and helical milling cutting edge portion stagger setting, counter boring cutting edge and rounding cutting edge chip area
It is wholely set and is communicated with helical milling cutting edge chip area, described helical milling cutting edge portion diameter is cut with helical milling
Recess diameter is identical, and described helical milling cutting edge portion diameter is smaller than the diameter of handle of a knife, and rounding cutting edge blade is circular arc
Structure simultaneously rounding cutting edge tip with tool axis at grade.
2. helical milling-counter boring-rounding integrated cutter according to claim 1, it is characterised in that：Three described spiral shells
The spacing revolved between hole milling cutting edge is unequal, between the spacing and three counter boring cutting edges between three rounding cutting edges
Spacing it is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329821.3A CN106964826B (en) | 2017-05-11 | 2017-05-11 | Helical milling-counter boring-rounded corner integrated cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329821.3A CN106964826B (en) | 2017-05-11 | 2017-05-11 | Helical milling-counter boring-rounded corner integrated cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106964826A true CN106964826A (en) | 2017-07-21 |
| CN106964826B CN106964826B (en) | 2019-06-18 |
Family
ID=59331911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710329821.3A Expired - Fee Related CN106964826B (en) | 2017-05-11 | 2017-05-11 | Helical milling-counter boring-rounded corner integrated cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106964826B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649633A (en) * | 2021-09-27 | 2021-11-16 | 嘉兴沃尔德金刚石工具有限公司 | Corrugated spiral milling cutter for finish machining of aerospace materials |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202344008U (en) * | 2011-12-07 | 2012-07-25 | 苏州阿诺精密切削技术股份有限公司 | Stepped milling cutter without common groove |
| DE102012205127A1 (en) * | 2011-04-04 | 2012-10-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | CUTTING TOOL FOR CONTROLLING SURFACE RAY |
| EP2578341A1 (en) * | 2010-05-27 | 2013-04-10 | Kyocera Corporation | End mill |
| CN103978255A (en) * | 2014-05-28 | 2014-08-13 | 中核（天津）机械有限公司 | Composite milling cutter for machining different-diameter holes |
| CN203817466U (en) * | 2014-04-28 | 2014-09-10 | 天合富奥汽车安全***（长春）有限公司 | Composite tool for reaming surface, boring hole, reversely milling plane and rounding off both sides of hole |
| CN204234845U (en) * | 2014-07-30 | 2015-04-01 | 常州创伟工具制造有限公司 | A kind of three sword aluminium milling cutters |
| CN204800025U (en) * | 2015-07-01 | 2015-11-25 | 苏州市新纶喷丝组件厂 | Step cutter |
| CN105081432A (en) * | 2015-07-02 | 2015-11-25 | 江苏扬碟钻石工具有限公司 | Flat-end three-edge PCD (Poly Crystal Diamond) milling cutter |
| CN205673666U (en) * | 2016-06-04 | 2016-11-09 | 东莞市富奇实业有限公司 | A kind of plastic cement processing composite milling cutter |
-
2017
- 2017-05-11 CN CN201710329821.3A patent/CN106964826B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2578341A1 (en) * | 2010-05-27 | 2013-04-10 | Kyocera Corporation | End mill |
| DE102012205127A1 (en) * | 2011-04-04 | 2012-10-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | CUTTING TOOL FOR CONTROLLING SURFACE RAY |
| CN202344008U (en) * | 2011-12-07 | 2012-07-25 | 苏州阿诺精密切削技术股份有限公司 | Stepped milling cutter without common groove |
| CN203817466U (en) * | 2014-04-28 | 2014-09-10 | 天合富奥汽车安全***（长春）有限公司 | Composite tool for reaming surface, boring hole, reversely milling plane and rounding off both sides of hole |
| CN103978255A (en) * | 2014-05-28 | 2014-08-13 | 中核（天津）机械有限公司 | Composite milling cutter for machining different-diameter holes |
| CN204234845U (en) * | 2014-07-30 | 2015-04-01 | 常州创伟工具制造有限公司 | A kind of three sword aluminium milling cutters |
| CN204800025U (en) * | 2015-07-01 | 2015-11-25 | 苏州市新纶喷丝组件厂 | Step cutter |
| CN105081432A (en) * | 2015-07-02 | 2015-11-25 | 江苏扬碟钻石工具有限公司 | Flat-end three-edge PCD (Poly Crystal Diamond) milling cutter |
| CN205673666U (en) * | 2016-06-04 | 2016-11-09 | 东莞市富奇实业有限公司 | A kind of plastic cement processing composite milling cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649633A (en) * | 2021-09-27 | 2021-11-16 | 嘉兴沃尔德金刚石工具有限公司 | Corrugated spiral milling cutter for finish machining of aerospace materials |
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| Publication number | Publication date |
|---|---|
| CN106964826B (en) | 2019-06-18 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20210511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |