CN103143741B - A kind of indexable two-sided grooved cutting tip - Google Patents
A kind of indexable two-sided grooved cutting tip Download PDFInfo
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- CN103143741B CN103143741B CN201210565322.1A CN201210565322A CN103143741B CN 103143741 B CN103143741 B CN 103143741B CN 201210565322 A CN201210565322 A CN 201210565322A CN 103143741 B CN103143741 B CN 103143741B
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- breaker
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Abstract
A kind of indexable two-sided grooved cutting tip, blade body is provided with the blade locating hole being positioned at its geometric center, form at upper and lower end face the cutting unit that at least 3 are positioned at angle, two sides respectively, cutting unit comprises main cutting edge, side cutting edge, major first face, the second rake face, the first chip breaker and the second chip breaker; Main cutting edge is provided with point of a knife and bears chamfered edge, and side cutting edge is provided with negative chamfered edge; The contiguous negative chamfered edge of end face and point of a knife are born chamfered edge and are provided with chip-breaker to lower recess, chip-breaker comprises to be born chamfered edge from point of a knife and to start to blade locating hole successively to lower recess and the major first face of smooth connection and the second rake face, the chip breaker with plane chip breaking end face is arranged around blade locating hole, the marginal section that chip breaker is positioned at cutting unit place bears chamfered edge along angular bisector to point of a knife contiguous, and make marginal section from chip-breaker upwards successively gradual change increase formation first chip breaker and the second chip breaker.
Description
Technical field
The present invention relates to a kind of turning cutting tool in metal cutting process field, particularly a kind of semi-finished indexable two-sided grooved cutting tip for steel etc. with the metal material workpiece of very high toughness and plasticity.
Background technology
In prior art, indexable two-sided grooved turning insert is conventional cutting tip, and selecting of turning insert should be selected according to the material of workpiece to be machined and processing purposes.For the iron-carbon alloy of steel carbon-content between 0.04% ~ 2.3%, because its workpiece to be machined has very high toughness and plasticity, cutting in conjunction with half finish turning processing has certain thickness feature, proposes special requirement to the groove design of turning insert.In prior art, the cutting unit of indexable two-sided grooved cutting tip only arranges main cutting edge usually, front cutting edge, a rake face, a chip breaker being positioned at end face, and its filings-breaking surface and rake face are oppositely arranged, be connected by plane or arc surface between filings-breaking surface with rake face, point of a knife does not arrange chamfered edge plane usually, keen edge, or even if there are two anterior angles, secondary chip breaking structure, but because the relevance between each parameter is not strong, mate bad, carrying out in semifinishing process to the good steel of above-mentioned toughness, workpiece to be machined generation plastic deformation, increase along with plastic region and plastic deformation work is increased, the cutting force causing blade to be subject to increases, cutting temperature is higher, thus easily cause cutter and chip generation bonding abrasion, sharp-pointed point of a knife can not bear severe processing environment and easy tipping, serious wear, blade significantly reduces service life, or the surface quality of workpiece to be machined is affected because of chip breaking poor effect, do not reach relevant criterion requirement, production efficiency declines, add production cost, therefore, the cutting tip with above-mentioned grooved can not adapt to the semifinishing requirement of above-mentioned steel.
Summary of the invention
The present invention is directed to above-mentioned deficiency, a kind of indexable two-sided grooved turning insert is provided, it has two anterior angle, secondary chip breaking structure, and forming very strong relevance between each parameter, matching is fine, can meet the semifinishing requirement of the iron-carbon alloy steel of phosphorus content between 0.04% ~ 2.3%, there is long service life, the advantage that workpiece to be machined surface quality is good.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of indexable two-sided grooved cutting tip, described blade body is upper and lower symmetric polygonal body, described blade body is provided with the blade locating hole 7 being positioned at its geometric center, described blade body comprises upper and lower end face, at least three sides 3 and connect the arc surface 4 of each side 3, described arc surface 4 is crossing with end face forms main cutting edge 51; Described side 3 is crossing with end face forms side cutting edge 61, form the cutting unit 15 being positioned at angle, two sides of at least 3 on upper and lower surface respectively, it is characterized in that: described cutting unit 15 comprises main cutting edge 51, side cutting edge 61, major first face 8, second rake face 9, first chip breaker 10 and the second chip breaker 12; Described main cutting edge 51 is provided with point of a knife and bears chamfered edge 5, and described side cutting edge 61 is provided with negative chamfered edge 6; The contiguous negative chamfered edge 6 of described end face and point of a knife are born chamfered edge 5 and are provided with chip-breaker 14 to lower recess, described chip-breaker 14 comprises to be born chamfered edge 5 from point of a knife and to start to described blade locating hole 7 successively to lower recess and the major first face 8 of smooth connection and the second rake face 9, the chip breaker with plane chip breaking end face 13 is arranged around blade locating hole 7, the marginal section that described chip breaker is positioned at cutting unit place bears chamfered edge 5 along angular bisector to point of a knife contiguous, and make described marginal section from chip-breaker 14 upwards successively gradual change increase formation first chip breaker 10 and the second chip breaker 12.
Described blade body is prismatic quadrangle, and the width that described point of a knife bears chamfered edge 5 is 0.05mm ~ 0.1mm; It is 5 ° ~ 15 ° that described point of a knife bears the angle [alpha] that chamfered edge 5 and chip breaking end face 13 formed; The angle beta that described major first face 8 and chip breaking end face 13 are formed is 2 ° ~ 10 °; The angle γ that described second rake face 9 and chip breaking end face 13 are formed is 10 ° ~ 30 °.
Described negative chamfered edge angle [alpha] angular range is 10 ° ~ 15 °; First anterior angle β is 3 ° ~ 6 °; Second anterior angle γ is 20 ° ~ 25 °.
First chip breaker 10 is connected by transition face 11 with the second chip breaker 12.
Described first chip breaker 10 is protruding sphere, and the radius R of described sphere is 0.5mm ~ 3mm.
Described first chip breaker 10 is 0.9mm ~ 1.1mm to the shortest horizontal range a of described main cutting edge 61, and the shortest vertical range b is 0.05mm ~ 0.1mm.
Compared with prior art, the invention has the advantages that:
The invention discloses a kind of indexable two-sided grooved turning insert, chamfered edge is born because it is provided with point of a knife, add the intensity of blade, improve the radiating condition of blade, especially machine ductile material is adapted to, the such as iron-carbon alloy of working steel products phosphorus content between 0.04% ~ 2.3%, the existence in chamfered edge face can avoid tipping, improves tool life.And owing to being provided with major first face to connect chamfered edge face and the second rake face, not only ensure that keen edge degree, and meet the cutting requirement of toughness material.And this hook angle structure enhances intensity and the crushing resistance of turning insert cutting edge, the roughness of finished surface also reduces greatly, and decrease tipping and wearing and tearing, blade life improves greatly.Simultaneously it is provided with twice chip breaking structure, when machine ductile material, chip is through twice chip breaking, even if the larger toughness chip of thickness also can be fractureed, and can ensure that machined surface is avoided being scratched by chip.The present invention expands the scope of application of blade, in production application, makes it can process the workpiece of general material, also can meet the machining needs of toughness material, save production cost.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention
Fig. 2 is the partial enlarged drawing of cutting angle sword
Fig. 3 is the A-A cross section view of Fig. 2
Fig. 4 is cutting unit partial enlarged drawing
In figure, each label represents:
1, upper surface, 2, lower surface, 3, side, 4, cutting circle cambered surface, 5, point of a knife bears chamfered edge, 51, main cutting edge, 6, chamfered edge born by cutting edge, and 61, side cutting edge, 7, blade locating hole, 8, major first face, the 9, second rake face, the 10, first chip breaker, 11, transition face, the 12, second chip breaker, 13, chip breaking end face, 14, chip-breaker, 15, cutting unit.
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 two-sided grooved cutting tip, the prismatic quadrangle blade of described blade body to be CN type 80 ° of nose angles be prismatic, as shown in Figures 1 to 4, described blade body is provided with the blade locating hole 7 being positioned at its geometric center, described blade body comprises upper surface 1, lower surface 2, four sides 3 and connect the arc surface 4 of each side 3, described arc surface 4 is crossing with lower surface, upper surface 1/ 2 forms main cutting edge 51; Described side 3 is crossing with lower surface, upper surface 1/ 2 forms side cutting edge 61, in upper surface 1, lower surface 2 forms the cutting unit 15 being positioned at angle, two sides 3 of 4 respectively, and described cutting unit 15 comprises main cutting edge 51, side cutting edge 61, major first face 8, second rake face 9, first chip breaker 10 and the second chip breaker 12; Described main cutting edge 51 is provided with point of a knife and bears chamfered edge 5, and described side cutting edge 61 is provided with negative chamfered edge 6; The contiguous negative chamfered edge 6 of described end face and point of a knife are born chamfered edge 5 and are provided with chip-breaker 14 to lower recess, described chip-breaker 14 comprises to be born chamfered edge 5 from point of a knife and to start to described centre bore 7 successively to lower recess and the major first face 8 of smooth connection and the second rake face 9, the chip breaker with plane chip breaking end face 13 is arranged around blade locating hole 7, the marginal section that described chip breaker is positioned at cutting unit place bears chamfered edge 5 along angular bisector to point of a knife contiguous, and make described marginal section from chip-breaker 14 upwards successively gradual change increase formation first chip breaker 10 and the second chip breaker 12.
In the present embodiment, the width that described point of a knife bears chamfered edge 5 is 0.05mm ~ 0.1mm; Be preferably 0.08mm; The chamfered edge face width degree bearing chamfered edge due to point of a knife is limited in narrower scope, and the setting making point of a knife bear chamfered edge does not change the effect of blade hook angle.
It is 5 ° ~ 15 ° that described point of a knife bears the angle [alpha] that chamfered edge 5 and chip breaking end face 13 formed; The angle beta that described major first face 8 and chip breaking end face 13 are formed is 2 ° ~ 10 °; The angle γ that described second rake face 9 and chip breaking end face 13 are formed is 10 ° ~ 30 °.
In the present embodiment, described negative chamfered edge angle [alpha] angular range is preferably 10 ° ~ 15 °; First anterior angle β is preferably 3 ° ~ 6 °; Second anterior angle γ is preferably 20 ° ~ 25 °.Particularly, in the present embodiment, α is 15 °; β is 6 °; γ is 15 °; In working angles, the first anterior angle β effectively can reduce negative chamfered edge 5 and the contact area of workpiece material, increases the stressed of workpiece material to excise chip better; Second anterior angle γ plays effective supporting role to negative chamfered edge 5 and the first anterior angle β, adds edge strength, makes it to bear larger external pressure; In the present embodiment, as preferred embodiment, the first chip breaker 10 and the second chip breaker 12 are connected by transition face 11.
In the present embodiment, as preferred embodiment, described first chip breaker 10 can be protruding sphere, and the radius R of described sphere is 0.5mm ~ 3mm.
In the present embodiment, as preferred embodiment, described first chip breaker 10 is 0.9mm ~ 1.1mm to the shortest horizontal range a of described main cutting edge 61, and the shortest vertical range b is 0.05mm ~ 0.1mm, and in the present embodiment, b is 0.06mm.
By arranging the first filings-breaking surface, turning insert when carrying out semifinishing to the good workpiece of toughness with little cutting-in, little feeding, chip by curling torsion easily to fractureing; When large cutting-in, roughing feed carry out semifinishing, chip is then swashed to the second filings-breaking surface along the first filings-breaking surface, even if machine ductile material, its chip also can be fractureed easily, and work piece also can be made to obtain good surface quality.
Above-described embodiment is only the preferred embodiment of the present invention; it should be pointed out that for the person of ordinary skill of the art, do not departing under principle prerequisite of the present invention; can also make some equivalents, these equivalents all should be considered as protection scope of the present invention.
Claims (5)
1. an indexable two-sided grooved cutting tip, described blade is used for the semifinishing of phosphorus content iron-carbon alloy steel workpiece between 0.04% ~ 2.3%, described blade body is upper and lower symmetric polygonal body, described blade body is provided with the blade locating hole (7) being positioned at its geometric center, described blade body comprises upper surface (1), lower surface (2), at least three sides (3) and connect the arc surface (4) of each side (3), described arc surface (4) is crossing with end face forms main cutting edge (51), described side (3) is crossing with end face forms side cutting edge (61), form at upper and lower end face the cutting unit (15) that at least 3 are positioned at angle, two sides respectively, it is characterized in that: cutting unit (15) comprises main cutting edge (51), side cutting edge (61), major first face (8), the second rake face (9), the first chip breaker (10) and the second chip breaker (12), described main cutting edge (51) is provided with point of a knife and bears chamfered edge (5), and described side cutting edge (61) is provided with negative chamfered edge (6), the contiguous negative chamfered edge (6) of described end face and point of a knife are born chamfered edge (5) and are provided with chip-breaker (14) to lower recess, described chip-breaker (14) comprises to be born chamfered edge (5) from point of a knife and starts to blade locating hole (7) successively to lower recess and the major first face of smooth connection (8) and the second rake face (9), the chip breaker with plane chip breaking end face (13) is arranged around blade locating hole (7), the marginal section that described chip breaker is positioned at cutting unit place bears chamfered edge (5) vicinity along angular bisector to point of a knife, and make described marginal section from chip-breaker (14) upwards successively gradual change increase formation first chip breaker (10) and the second chip breaker (12), first chip breaker (10) is connected by transition face (11) with the second chip breaker (12), it is 10 ° ~ 15 ° that described point of a knife bears the angle [alpha] that chamfered edge (5) and chip breaking end face (13) formed, the angle beta that described major first face (8) and chip breaking end face (13) are formed is 3 ° ~ 6 °, the angle γ that described second rake face (9) and chip breaking end face (13) are formed is 20 ° ~ 25 °.
2. the indexable two-sided grooved cutting tip of one according to claim 1, is characterized in that: described blade body is prismatic quadrangle, and the width that described point of a knife bears chamfered edge (5) is 0.05mm ~ 0.1mm.
3. the indexable two-sided grooved cutting tip of one according to claim 2, is characterized in that: described first chip breaker (10) is protruding sphere, and the radius R of described sphere is 0.5mm ~ 3mm.
4. the indexable two-sided grooved cutting tip of one according to claim 1, it is characterized in that: described first chip breaker (10) is 0.9mm ~ 1.1mm to the shortest horizontal range a of described main cutting edge (61), and the shortest vertical range b is 0.05mm ~ 0.1mm.
5. the indexable two-sided grooved cutting tip of one according to claim 2, it is characterized in that: when the angular range of angle beta is 3 ° ~ 6 °, described angle [alpha] is 10 ° ~ 15 °, described angle γ is 20 ° ~ 25 °, described first chip breaker (10) is 0.9mm ~ 1.1mm to the shortest horizontal range a of described main cutting edge (61), and the shortest vertical range b is 0.05mm ~ 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565322.1A CN103143741B (en) | 2012-12-24 | 2012-12-24 | A kind of indexable two-sided grooved cutting tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565322.1A CN103143741B (en) | 2012-12-24 | 2012-12-24 | A kind of indexable two-sided grooved cutting tip |
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| Publication Number | Publication Date |
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| CN103143741A CN103143741A (en) | 2013-06-12 |
| CN103143741B true CN103143741B (en) | 2015-12-02 |
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| CN201210565322.1A Active CN103143741B (en) | 2012-12-24 | 2012-12-24 | A kind of indexable two-sided grooved cutting tip |
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| CN103862074B (en) * | 2014-04-08 | 2016-02-10 | 哈尔滨理工大学 | A kind of double break bits structure heavy cutting blade |
| CN105965045B (en) * | 2016-06-29 | 2018-03-02 | 北京沃尔德金刚石工具股份有限公司 | A kind of chip-breaker cutter and processing method |
| CN107598200A (en) * | 2017-10-13 | 2018-01-19 | 株洲欧科亿数控精密刀具股份有限公司 | A kind of steel class turning insert |
| CN107790754A (en) * | 2017-11-23 | 2018-03-13 | 株洲欧科亿数控精密刀具股份有限公司 | The two-sided groove profile Indexable cutting inserts of one kind finishing |
| CN110788355A (en) * | 2018-08-01 | 2020-02-14 | 上海必攀金属切削技术有限公司 | CBN (cubic boron nitride) blade and machining method thereof |
| CN109014258A (en) * | 2018-09-10 | 2018-12-18 | 株洲华锐精密工具股份有限公司 | One kind being used for the semi-finished indexable turning blade of titanium alloy |
| CN113787204B (en) * | 2021-09-03 | 2022-12-09 | 厦门金鹭特种合金有限公司 | Cubic boron nitride cutter with chip breaker |
| CN113814430B (en) * | 2021-09-03 | 2022-12-30 | 厦门金鹭特种合金有限公司 | Diamond cutter with chip breaker groove for aluminum alloy material processing |
| CN114799305A (en) * | 2022-04-28 | 2022-07-29 | 厦门金鹭特种合金有限公司 | Diamond milling cutter with chip breaker groove |
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| JP3366751B2 (en) * | 1994-10-19 | 2003-01-14 | 東芝タンガロイ株式会社 | Indexable tip |
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| CN1043412C (en) * | 1992-07-02 | 1999-05-19 | 桑德维克公司 | Cutting insert for chipforming machining |
| US6217264B1 (en) * | 1998-05-30 | 2001-04-17 | Korloy, Inc. | Cutting insert having an improved chip breaker |
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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. |
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