CN103009333B - Indexable cutting insert for rough machining - Google Patents
Indexable cutting insert for rough machining Download PDFInfo
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- CN103009333B CN103009333B CN201210565186.6A CN201210565186A CN103009333B CN 103009333 B CN103009333 B CN 103009333B CN 201210565186 A CN201210565186 A CN 201210565186A CN 103009333 B CN103009333 B CN 103009333B
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- chip breaker
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- cutting edge
- concave face
- plane
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Abstract
The invention discloses an indexable cutting insert for rough machining. An insert body is a polygonal body, the geometrical center is provided with a mounting through hole, a chip breaker body is arranged around the mounting through hole, and cutting units are respectively distributed at the included angle between each two neighboring sides. The indexable cutting insert is characterized in that each cutting unit consists of a main cutting edge and an auxiliary cutting edge; each of the main cutting edge and the auxiliary cutting edge is provided with a chamfer plane and an arris plane, and a first front insert face and a second front insert face are connected with the chip breaker body through concave bottoms; at each cutting unit, the chip breaker body is provided with a boss, the surface of the boss gradually rises to form a first chip breaker and a second chip breaker, a first concave is formed between the ridge of the first chip breaker and the ridge of the second chip breaker, a second concave is formed between the second chip breaker and the chip breaker body, and both the first concaves and the second concaves are smoothly connected with the concave bottoms. Under the premise of guaranteeing the edge strength of the insert, the cutting resistance is decreased, the indexable cutting insert has high chip-breaking ability, and the overall cutting performance is good.
Description
Technical field
The present invention relates to a kind of for the anti-dandruff rough machined Indexable cutting inserts of metal.
Background technology
Blade cut grooved for the anti-dandruff rough machined Indexable cutting inserts of metal should design according to different machining conditions and processing object, the composite factors such as the intensity of processing environment, processing object, cutter hub material, coating, blade should be taken into full account, to obtain better cutting ability and efficiency.For roughing blade, it had in use both needed to adopt larger cutting feeding to meet the requirement of working (machining) efficiency, needed again to ensure cutting edge strength, met the requirement in service life, how obtaining best blade serviceability, is the key point of blade cut groove design.In each design considerations, the anterior angle that blade datum surface and rake face are formed is a key parameter, the excessive excellent cutting performance of anterior angle but its cutting edge easily break, so often adopt wide chamfered edge to cutting edge or reduce front corner structure with proof strength, but this mode of directly cutting edge being carried out to simple chamfered edge process, although the impact property of blade can be improved, the cutting resistance suffered by blade is sharply increased, the wearing and tearing aggravation of blade.
On the other hand, chip breaking Functional Design is also very important in the design of roughing Chip grooves, because roughing cutting depth is large, transverse curvature rigidity is high, generally can not form long and thick screw type chip, and major part is considered to be worth doing based on C type, its main chip breaking function is completed by the cutting unit of point of a knife, in prior art, the employing plane transition that in point of a knife cutting unit, chip-breaker is more, is unfavorable for the chip breaking of roughing chip.Therefore, the groove design for roughing Indexable cutting inserts needs to optimize further.
Summary of the invention
The object of the invention is the deficiency for prior art, there is provided a kind of for roughing Indexable cutting inserts, it under the prerequisite ensureing blade cutting edge intensity, can reduce the cutting resistance be subject in working angles, there is good chip breaking ability, improve overall cutting ability.
Technical scheme of the present invention is:
A kind of indexable double-sided cutting insert, blade body is laterally zygomorphic polygonal body, comprises two end faces and side surface, and blade body geometric center is provided with installs through hole 17, chip breaker body is arranged around installation through hole 17, and described two adjacent side are connected by arc surface 14; Cutting unit is distributed in two adjacent side angles, it is characterized in that: described cutting unit comprises: described end face section crossing with arc surface 14 is main cutting edge 15, and described end face section crossing with side surface is front cutting edge 16; Described main cutting edge 15 and front cutting edge 16 are provided with negative chamfered edge plane, major first face 20 chamfered edge plane of thinking highly of oneself caves inward, continue to cave inward with smooth the second rake face 21 connected of major first face 20 major first face 20 that continues, connected with chip breaker body by concave face bottom surface;
In each cutting unit place, chip breaker body is provided with the boss of contiguous main cutting edge 15, described boss is symmetrical arranged along angular bisector, surface raises formation first chip breaker 22 and the second chip breaker 23 gradually, described first chip breaker 22 and the second chip breaker 23 are provided with the ridge peak across angular bisector, described ridge peak is to the contiguous height that also gradually reduces of side cutting edge to connecting with concave face bottom surface is smooth, the first concave face 46 is formed between the ridge peak of described first chip breaker 22 and the ridge peak of the second chip breaker 23, the second concave face 47 is formed between second chip breaker 23 and chip breaker body, described first concave face 46 and the second concave face 47 all connect with concave face bottom surface is smooth.
Described blade body is with by-level section for datum plane, and described rib plane 19 is parallel with datum plane, width l
2for 0.1mm-0.2mm.Described negative chamfered edge plane 18 width l
1for 0.08mm-0.15mm, angle [alpha] is 5 °-15 °.
The anterior angle β of described second rake face 21 is 12 °-18 °.
The ratio of the anterior angle γ of described major first face 20 and the anterior angle β of the second rake face 21 is 2/5-3/5, the width l of described major first face 20
3with rib plane 19 width l
2ratio be 1-1.2.
Described concave face bottom surface extends along front cutting edge direction, described concave face bottom surface and angular bisector intersection are peak, the minimum point of described concave face bottom surface is positioned at front cutting edge center vertical cross section, and the difference in height between described concave face bottom surface peak and minimum point is 0.2mm-0.25mm.
Described first chip breaker (22) end face is conical convex surface, and described conical convex surface and concave face bottom surface are by arc surface transition, and the summit of described conical convex surface is apart from the distance l of main cutting edge
4for 1.5mm-1.8mm.
The difference in height l of described second chip breaker (23) and rib plane (19)
5for 0.12mm-0.15mm.
Beneficial effect of the present invention is:
In the present invention, because cutting edge is provided with negative chamfered edge plane, and there is hook angle structure, and the major first face be connected with this plane, the second rake face define a side of concave face bottom surface, and the first chip breaker, the first concave face and the second chip breaker, the second concave face form the waveform extensional surface gradually raised from concave face bottom surface, namely another side of concave face bottom surface is become, define the chip-breaker of blade, the roughing indexable insert tip, throw away tip of above-mentioned grooved had the following advantages:
1, the setting in chamfered edge face enhances the impact resistance at point of a knife top, major first face is as the transition face of rib plane and the second rake face, effective chamfered edge face of having relaxed directly is connected with the second rake face and forms pointed part, reduce cutting resistance suffered by blade in working angles, and ensure that the virtual angle of chamfered edge face and the second rake face is constant, namely do not reduce anterior angle and the sharpness of cutting edge is weakened, also cutting force is not enlarged markedly because of chamfered edge face, under the impact resistance condition that ensure that blade base, improve the cutting ability of blade.
2, the chip-breaker that concave face bottom surface etc. are formed ensure that chip space, set secondary chip breaker structure, i.e. the first chip breaker, first concave face and the second chip breaker, the extensional surface of rising waveform gradually that second concave face is formed can guide chip effectively, the chip of the different-thickness produced in roughing process all can effectively be fractureed, namely the chip of thinner thickness is fractureed at the first chip breaker, the chip that thickness is slightly large is fractureed through the first concave face and the second chip breaker after the first chip breaker is curling, this waveform extensional surface effectively can control chip-flowing, smooth chip removal, reduce blade abrasion, reduce cutting temperature, ensure that chip breaking effect, avoid the phenomenon of sticky cutter.
3, profile exquisiteness is attractive in appearance, optimizes the overall structure of blade.
Accompanying drawing explanation
Fig. 1 is structural representation stereogram of the present invention;
Fig. 2 is cutting unit partial structurtes of the present invention signal enlarged drawing;
Fig. 3 is top view of the present invention;
Fig. 4 is side view of the present invention;
Fig. 5 is the A-A sectional schematic diagram of Fig. 3 of the present invention.
In figure:
Arc surface-14, main cutting edge-15, front cutting edge-16, installs through hole-17, negative chamfered edge plane-18, rib plane-19, major first face-, the 20, second rake face-21, the first chip breaker-22, the second chip breaker-23, the first concave face-46, the second concave face 47.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1:
A kind of indexable double-sided cutting insert, blade body is upper and lower symmetrical square body, as shown in Figures 1 to 5, comprise two end faces and side surface, end face is provided with four connecting surfaces, blade is positioned in cutter connecting surface by connecting surface, particularly, is fixed through the installation through hole 17 being positioned at blade body geometric center by hold-down screw.The both ends of the surface of described blade body are that datum plane m is symmetrical arranged with mid-section, and described two adjacent side are connected by arc surface 14; Eight cutting units are distributed in two adjacent side angles of upper and lower two end faces, and described cutting unit comprises: the main cutting edge 15 that described end face section crossing with arc surface 14 is formed, and described end face section crossing with side surface is front cutting edge 16; Described main cutting edge 15 and front cutting edge 16 are provided with negative chamfered edge plane 18, and described negative chamfered edge plane 18 is 5 °-15 ° with datum plane angle α, described negative chamfered edge plane 18 width l
1for 0.08mm-0.15mm, rib plane 19 is connected with negative chamfered edge, and rib plane 19 is parallel with datum plane, width l
2for 0.1mm-0.2mm; Described end face caves inward from rib plane 19 and forms major first face 20, second rake face 21 major first face 20 that continues and continue to cave inward and smoothly to connect with it, forms the concave face bottom surface of end face; Described concave face bottom surface extends along front cutting edge 16 direction, described concave face bottom surface and main cutting edge 15 angular bisector intersection are peak, the minimum point of described concave face bottom surface is positioned at front cutting edge central cross-section, and the difference in height between described peak and minimum point is 0.2mm-0.25mm.
The chip breaker body raised up from concave face bottom surface is arranged around through hole 17, described chip breaker body is provided with multiple boss being respectively adjacent to each main cutting edge 15, described boss is that symmetry axis is symmetrical arranged with angular bisector, the surface of described boss raises formation first chip breaker 22 and the second chip breaker 23 gradually along angular bisector to chip breaker body, described first chip breaker 22 end face is highly cumulative along angular bisector to center conical convex surface, described conical convex surface and concave face bottom surface arc transition, the distance l of the summit distance main cutting edge of described conical convex surface
3for 1.5mm-1.8mm.
Described first chip breaker 22 and the second chip breaker 23 are provided with the ridge peak across angular bisector, two ends, ridge peak extremely connect with concave face bottom surface is smooth respectively to the contiguous height that also gradually reduces of side cutting edge, the first concave face 46 is formed between the ridge peak of described first chip breaker 22 and the ridge peak of the second chip breaker 23, form the second concave face 47 between second chip breaker 23 and chip breaker body, described first concave face 46 and the second concave face 47 all connect with concave face bottom surface is smooth.
As preferred forms of the present invention, the anterior angle β of described second rake face 21 is preferably 12 °-18 °.On this basis, the ratio that the present invention also limits the anterior angle γ of major first face 20 and the anterior angle β of the second rake face 21 is 2/5-3/5, makes the combination of the two be in optimized scope, if the second anterior angle is 15 degree, first anterior angle is then 9 degree, forms the corresponding relation of optimization therebetween.And limit the width l of major first face 20 further
3with rib plane 19 width l
2ratio be 1:1-1:1.2, the width as rib plane 19 is 0.2mm, then the width of major first face is no more than 0.24mm, and after the combination of above-mentioned Optimal Parameters, the geometry of cutting edge can reach the optimized cutting performance of blade, ensures enough chip spaces.
The difference in height l of described second chip breaker 23 and rib plane 19
5for 0.12mm-0.15mm, above-mentioned restriction can realize optimum chip breaking effect, and lower than this scope, then the resistance that runs into of chip is too little, and cannot realize chip breaking, higher than this scope, then resistance is too large, is unfavorable for smooth chip removal.
Above-described embodiment is only the preferred embodiment of the present invention, should be understood that, for the person of ordinary skill of the art, not departing under principle prerequisite of the present invention, some equivalents can also be made, if the basic profile of blade is except can be except square, can also be parallelogram, rhombus, triangle, pentagon, hexagon etc.These equivalents all should be considered as protection scope of the present invention.
Claims (3)
1. an indexable double-sided cutting insert, blade body is laterally zygomorphic polygonal body, comprises two end faces and side surface, and blade body geometric center is provided with installs through hole (17), chip breaker body is arranged around installation through hole (17), and two adjacent side are connected by arc surface (14); Cutting unit is distributed in two adjacent side angles, it is characterized in that: described cutting unit comprises: described end face and arc surface (14) crossing section are main cutting edge (15), and described end face section crossing with side surface is front cutting edge (16); Described main cutting edge (15) and front cutting edge (16) are provided with negative chamfered edge plane (18) and rib plane (19), major first face (20) caves inward from rib plane, continue to cave inward with smooth the second rake face (21) connected of major first face (20) major first face (20) that continues, connected with chip breaker body by concave face bottom surface;
In each cutting unit place, chip breaker body is provided with the boss of contiguous main cutting edge (15), described boss is symmetrical arranged along angular bisector, surface raises formation first chip breaker (22) and the second chip breaker (23) gradually, described first chip breaker (22) and the second chip breaker (23) are provided with the ridge peak across angular bisector, described ridge peak is to the contiguous height that also gradually reduces of side cutting edge to connecting with concave face bottom surface is smooth, the first concave face (46) is formed between the ridge peak of described first chip breaker (22) and the ridge peak of the second chip breaker (23), the second concave face (47) is formed between second chip breaker (23) and chip breaker body, described first concave face (46) and the second concave face (47) all connect with concave face bottom surface is smooth,
Described blade body is with by-level face for datum plane, and described negative chamfered edge plane (18) and datum plane angle α are 5 °-15 °, described negative chamfered edge plane (18) width l
1for 0.08mm-0.15mm, connected rib plane (19) width l
2for 0.1mm-0.2mm;
The anterior angle β of described second rake face (21) is 12 °-18 °;
The ratio of the anterior angle γ of described major first face (20) and the anterior angle β of the second rake face (21) is 2/5-3/5, the width l of described major first face (20)
3with the width l of rib plane (19)
2ratio be 1/1-1/1.2;
Described concave face bottom surface extends along front cutting edge direction, described concave face bottom surface and angular bisector intersection are peak, the minimum point of described concave face bottom surface is positioned at front cutting edge center vertical cross section, and the difference in height between described concave face bottom surface peak and minimum point is 0.2mm-0.25mm.
2. indexable double-sided cutting insert according to claim 1, it is characterized in that, described first chip breaker (22) end face is conical convex surface, and described conical convex surface and concave face bottom surface are by arc surface transition, and the summit of described conical convex surface is apart from the distance l of main cutting edge
4for 1.5mm-1.8mm.
3. indexable double-sided cutting insert according to claim 1, is characterized in that, the difference in height l of described second chip breaker (23) and rib plane (19)
5for 0.12mm-0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565186.6A CN103009333B (en) | 2012-12-24 | 2012-12-24 | Indexable cutting insert for rough machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565186.6A CN103009333B (en) | 2012-12-24 | 2012-12-24 | Indexable cutting insert for rough machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103009333A CN103009333A (en) | 2013-04-03 |
| CN103009333B true CN103009333B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210565186.6A Active CN103009333B (en) | 2012-12-24 | 2012-12-24 | Indexable cutting insert for rough machining |
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| CN (1) | CN103009333B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551615B (en) * | 2013-11-01 | 2016-01-20 | 株洲欧科亿硬质合金有限公司 | Indexable double-sided cutting insert |
| CN104308206B (en) * | 2014-10-21 | 2018-02-02 | 台州市锐安硬质合金工具有限公司 | Turning indexable insert tip, throw away tip |
| CN104400029A (en) * | 2014-11-07 | 2015-03-11 | 江西稀有稀土金属钨业集团有限公司 | Preparation method for effectively improving use property of indexable cutter blade |
| CN107414114B (en) * | 2017-09-26 | 2023-09-08 | 株洲欧科亿数控精密刀具股份有限公司 | Double-sided indexable turning blade for rough machining of high-temperature alloy |
| CN111054961B (en) * | 2019-11-01 | 2021-11-16 | 株洲欧科亿数控精密刀具股份有限公司 | Indexable insert and cutter for large-feed milling |
| CN111468748A (en) * | 2020-04-28 | 2020-07-31 | 厦门金鹭特种合金有限公司 | Indexable cutting insert |
| CN111730077B (en) * | 2020-06-29 | 2024-07-02 | 厦门金鹭特种合金有限公司 | Indexable turning tool |
| CN113182575B (en) * | 2021-05-11 | 2024-05-28 | 哈尔滨理工大学 | High-strength milling blade for heavy cutting, heat resistance and antifriction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6217264B1 (en) * | 1998-05-30 | 2001-04-17 | Korloy, Inc. | Cutting insert having an improved chip breaker |
| CN1490105A (en) * | 2003-08-27 | 2004-04-21 | 株洲钻石切削刀具股份有限公司 | Positionable milling cutter |
| CN101695761A (en) * | 2009-10-23 | 2010-04-21 | 株洲钻石切削刀具股份有限公司 | Cutting blade for processing soft metal materials |
| CN202087853U (en) * | 2010-12-07 | 2011-12-28 | 中硬金属切削(大连)有限公司 | Double groove type indexable vertical numerical control turning blade for heavy cutting |
| CN203091768U (en) * | 2012-12-24 | 2013-07-31 | 株洲欧科亿硬质合金有限公司 | Indexable cutting blade for rough machining |
-
2012
- 2012-12-24 CN CN201210565186.6A patent/CN103009333B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6217264B1 (en) * | 1998-05-30 | 2001-04-17 | Korloy, Inc. | Cutting insert having an improved chip breaker |
| CN1490105A (en) * | 2003-08-27 | 2004-04-21 | 株洲钻石切削刀具股份有限公司 | Positionable milling cutter |
| CN101695761A (en) * | 2009-10-23 | 2010-04-21 | 株洲钻石切削刀具股份有限公司 | Cutting blade for processing soft metal materials |
| CN202087853U (en) * | 2010-12-07 | 2011-12-28 | 中硬金属切削(大连)有限公司 | Double groove type indexable vertical numerical control turning blade for heavy cutting |
| CN203091768U (en) * | 2012-12-24 | 2013-07-31 | 株洲欧科亿硬质合金有限公司 | Indexable cutting blade for rough machining |
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| CN103009333A (en) | 2013-04-03 |
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Address after: Dong Jia Duan high-tech park in Hunan province 412008 Zhuzhou city Lusong District venture four Road No. eight Patentee after: Zhuzhou OUKE CNC precision cutting tools Co., Ltd. Address before: Dong Jia Duan high-tech park in Hunan province 412008 Zhuzhou city Lusong District venture four Road No. eight Patentee before: Zhuzhou OKE Carbide Co., Ltd. |
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Address after: 412500, Hunan County, Zhuzhou province Yanling County entrepreneurship Park entrepreneurial road Patentee after: Zhuzhou OUKE CNC precision cutting tools Limited by Share Ltd Address before: Dong Jia Duan high-tech park in Hunan province 412008 Zhuzhou city Lusong District venture four Road No. eight Patentee before: Zhuzhou OUKE CNC precision cutting tools Co., Ltd. |