CN103143736A - Special blade for roughly processing large axial forge piece with V-shaped tool noses - Google Patents
Special blade for roughly processing large axial forge piece with V-shaped tool noses Download PDFInfo
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- CN103143736A CN103143736A CN2013100859985A CN201310085998A CN103143736A CN 103143736 A CN103143736 A CN 103143736A CN 2013100859985 A CN2013100859985 A CN 2013100859985A CN 201310085998 A CN201310085998 A CN 201310085998A CN 103143736 A CN103143736 A CN 103143736A
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Abstract
The invention discloses a special blade for roughly processing a large axial forge piece with V-shaped tool noses, and belongs to the technical field of tools for turning, in order to solve the problems that during the course of roughly milling a hydrogenation shell ring of an ultra large axial forge piece, fracture failure is caused due to the fact that a tool bears load-variable and frequency-variable mechanical shock, and during the course of cutting, the tool is bonded with chips, and chip cutting and chip breaking are difficult due to the fact that a heat dissipation condition is poor and a tool body is softened resulting from high temperature. Four negative chamfered cutting edges are processed at four external rims of a blade rake face; the V-shaped tool noses are processed at connection parts between every two adjacent negative chamfered cutting edges; trapezoid chip breaker grooves are formed in the blade rake face; four rhombic bulges are arranged on the blade rake face, and are close to the four V-shaped tool noses; a tightening screw counter bore is processed in a bulge platform, and positioned in a geometric center; a circular heat-dissipation groove is processed at the periphery of the tightening screw counter bore in the bulge platform; and diagonal heat-dissipation grooves are processed in four diagonal lines of the bulge platform. The special blade is used for large knifing turning in rough processing of a large forge piece blank.
Description
Technical field
The invention belongs to turning tool technical field, relate in particular to a kind of V-arrangement point of a knife large axis forging roughing special blade.
Background technology
Along with China's expanding economy, the fields such as clean energy resource (nuclear power, water power), Aero-Space, communications and transportation constantly increase the demand of large-scale high-end equipment.But the manufacture level of Chinese large-sized equipment is restricting the production domesticization development of the high-end equipment of Chinese large-sized.The Large-Scale Equipment part material is generally difficult-to-machine material, and difficulty of processing is very large, and in cutting process, cutting depth a
pUp to the 30mm left and right, cutting force is very large, and tool failure is serious, and heavy type cutting tools production domesticization and seriation are China's equipment manufacture problem demanding prompt solutions.For example, large-scale hydrogenation shell ring blank is directly to forge to form, and weight can reach the hundreds of ton and even go up kiloton, and work surface has the unexistent forging defect of a lot of common forgings, such as: forge shovel ditch, oxide skin, forge crack and metal covering etc.Hydrogenation shell ring material used is more special, has very strong high temperature toughness.at present, the cutter that the waste machining of hydrogenation shell ring is used is the welded type lathe tool of single-blade, the cutting data that in process, forging defect causes changes very greatly, the mechanical shock that cutter bears is in dynamic change constantly, the cutting force maximum can reach tens tons, cutter is easy to be hit and ruptures, add that present cutter does not have chip-breaker, make the smear metal in process be difficult to fracture, be wrapped on cutter, make the radiating condition variation of cutter, thereby cause cutting zone temperature constantly raise (can reach 1000 ℃), a large amount of heat in metal cuttings are deposited on cutting zone, accelerated the softening of cutter, thereby be easy to cause that the cutting edge of cutter and smear metal produce cutter-bits bonding phenomenon, cutter life is short, the raising of serious restriction production efficiency.
Summary of the invention
The purpose of this invention is to provide a kind of V-arrangement point of a knife large axis forging roughing special blade, in the waste process of ultra-large type forged shaft hydrogenation shell ring, cutter bears the mechanical shock of varying load Frequency and causes fracture failure, and in working angles, radiating condition is poor, and high temperature makes softening cutter-bits bonding and the smear metal chip breaking hard problem that cause of cutter hub.
in order to achieve the above object, the technical solution used in the present invention is: V-arrangement point of a knife large axis forging roughing special blade, the profile of described blade is the truncated rectangular pyramids shape, the area of blade bottom surface is less than the area of blade rake face, four outer edge of blade rake face are processed with respectively four negative chamfered edge cutting edges, every adjacent two the negative chamfered edge cutting edge junctions of blade are processed with respectively a V-arrangement point of a knife, the sharp corner of V-arrangement point of a knife is processed with the facade perpendicular with the equidistant point of this V-arrangement point of a knife, the middle part of blade rake face is provided with the raised platform of truncated rectangular pyramids shape, the area of described raised platform front surface is less than the area of raised platform bottom surface, the center, edge of blade rake face be provided with four protruding stupefied, protruding stupefied and raised platform adjacent surface are the inclined-plane that tilts to blade bottom surface direction, by forming trapezoidal chip-breaker between the inclined-plane of raised platform and protruding stupefied inclined-plane, on the blade rake face, next-door neighbour four V-arrangement point of a knife places are provided with four rhombus projections, and four rhombus projections are arranged on the corresponding diagonal of blade rake face, the geometric center place that is positioned at blade on raised platform is processed with the trip bolt counterbore along the blade thickness direction, the neighboring that is positioned at the trip bolt counterbore on raised platform is processed with circular radiating groove, be processed with respectively the diagonal angle radiating groove on four diagonal of raised platform, the setting that communicates with circular radiating groove of diagonal angle radiating groove.
The invention has the beneficial effects as follows:
1, the zone between the inclined-plane of the raised platform on the blade rake face and protruding stupefied inclined-plane forms trapezoidal chip-breaker, strengthened the blade chip-breaking performance, chip breaking and chip removal are more prone to, have reduced large-scale smear metal to the friction at cutter cutting edge anterior angle position, reduce the generation of heat in metal cutting.
2, next-door neighbour four V-arrangement point of a knife places are provided with four rhombus projections on the blade rake face, can increase point of a knife intensity, reduce trapezoidal chip breaker groove depth when little cutting data, thereby reduce the chip curling radius, accelerate it and fracture, and reduce the wearing and tearing of blade rake face.
3, adopt the V-arrangement point of a knife, in large cutting data situation, the edge forms the stress concentration phenomenon and produces fracture breach in advance thereby the mutual extruding of large-scale smear metal edge and V-arrangement point of a knife inner edge causes smear metal, thereby improves large-scale chip breaking efficient.
4, the cutting edge reinforcement is set, when increasing edge strength, can also plays the effect of cutting apart and protecting to the major-minor cutting edge.
5, the cutting edge of blade adopts negative chamfered edge cutting edge, and purpose is to reduce the cutting vibration in working angles, improves edge strength and shock resistance.
6, the middle part of blade rake face is provided with the raised platform of truncated rectangular pyramids shape, has not only increased the thickness of blade axial direction, has also improved simultaneously the bulk strength of blade.
7, the neighboring that is positioned at the trip bolt counterbore on raised platform is processed with circular radiating groove, be processed with respectively the diagonal angle radiating groove on four diagonal of raised platform, the setting that communicates with circular radiating groove of diagonal angle radiating groove, increased the area of dissipation of blade rake face, if the cooling fluid of using, also will play the effect of volume cooling fluid, and make blade cooling fast.
8, the blade bottom is provided with square radiating groove and the center line radiating groove that communicates, and not only increases blade bottom heat radiation area, and reduces the contact area of blade and knife bar, thereby reduce heat transmission, avoid blade and knife bar Yin Gaowen and bond, also can carry cooling fluid, strengthening heat radiation.
9, be provided with radial heat radiation projection at the bottom of cutter, play the effect of supporting blade after fastening at blade and knife bar, there is a little radiating groove of the outside radiant type of circle on its surface, the heat that can distribute the screw place is introduced the cold air of square radiating groove or cooling fluid around trip bolt by the radial-type heat dissipating groove simultaneously, strengthen internal heat dissipating, prevent that screw and blade from boning.
10, be inner sunken face to be set play the effect that strengthens near the intensity the blade cut sword at the rear knife face of blade, not only downward pressure can be distributed to other direction, play the effect of strengthening cutter hub, and it also has the effect of funnel when using cutting fluid, be conducive to cutting fluid and enter blade bottom by center line radiating groove and square radiating groove, thereby strengthen heat radiation.
11, due to the blade bottom surface for supporting convex surface, knife bar or cutterhead have been protected in effectively vibrationproof equally, have also improved stable cutting.
12, the blade of the present invention maximum cutting force that can bear can reach 100～110KN, maximum depth of cut can reach 30mm, can satisfy the full depth requirement of large (maximum can reach tens tons) needs of workpiece material removal amount in ultra-large type forging blank roughing process.Blade of the present invention is 1.1 times of ordinary blade its service life, and working (machining) efficiency more originally improved 30% left and right.
Description of drawings
Fig. 1 is the front view of V-arrangement point of a knife large axis forging roughing special blade of the present invention, and Fig. 2 is the top view of Fig. 1, and Fig. 3 is the A-A cutaway view of Fig. 2, and Fig. 4 is the upward view of Fig. 1, and Fig. 5 is the B-B cutaway view of Fig. 4.
The specific embodiment
the specific embodiment one: as Fig. 1-shown in Figure 5, the V-arrangement point of a knife large axis forging roughing special blade of present embodiment, the profile of described blade is the truncated rectangular pyramids shape, the area of blade bottom surface is less than the area of blade rake face, four outer edge of blade rake face are processed with respectively four negative chamfered edge cutting edges 4, every adjacent two negative chamfered edge cutting edge 4 junctions of blade are processed with respectively a V-arrangement point of a knife 7, the sharp corner of V-arrangement point of a knife 7 is processed with the facade perpendicular with the equidistant point of this V-arrangement point of a knife 7, the middle part of blade rake face is provided with the raised platform 5 of truncated rectangular pyramids shape, the area of described raised platform 5 front surfaces is less than the area of raised platform 5 bottom surfaces, the center, edge of blade rake face be provided with four protruding stupefied, protruding stupefied and raised platform 5 adjacent surfaces are the inclined-plane that tilts to blade bottom surface direction, by forming trapezoidal chip-breaker 2 between the inclined-plane of raised platform 5 and protruding stupefied inclined-plane, on the blade rake face, next-door neighbour four V-arrangement point of a knife 7 places are provided with four rhombus projections 1, and four rhombus projections 1 are arranged on the corresponding diagonal of blade rake face, the geometric center place that is positioned at blade on raised platform 5 is processed with trip bolt counterbore 6 along the blade thickness direction, the neighboring that is positioned at trip bolt counterbore 6 on raised platform 5 is processed with circular radiating groove 8, be processed with respectively diagonal angle radiating groove 14 on four diagonal of raised platform 5, diagonal angle radiating groove 14 setting that communicates with circular radiating groove 8.
The specific embodiment two: in conjunction with Fig. 4 explanation, the outside that is positioned at trip bolt counterbore 6 neighborings on the blade bottom surface of present embodiment is provided with square radiating groove 9, the outer circumference that is positioned at trip bolt counterbore 6 on the groove bottom of square radiating groove 9 is provided with radial heat radiation projection 10, and every outer peripheral middle part of blade bottom surface extremely is processed with the center line radiating groove 15 that communicates with square radiating groove 9 between the middle part of square radiating groove 9 corresponding groove edges.In present embodiment, undocumented technical characterictic is identical with the specific embodiment one.
Near the specific embodiment three: in conjunction with Fig. 1 and Fig. 4 explanation, be positioned on knife face 16 after four of the blade of present embodiment behind the place and be processed with inner sunken face 11 the center line radiating groove 15 on knife face 16.In present embodiment, undocumented technical characterictic is identical with the specific embodiment two.
The specific embodiment four: in conjunction with Fig. 2 explanation, the cross centre line that is positioned at the blade rake face in the trapezoidal chip-breaker 2 in present embodiment is provided with cutting edge reinforcement 3.In present embodiment, undocumented technical characterictic is identical with the specific embodiment two.
The specific embodiment five: in conjunction with Fig. 3 and Fig. 5 explanation, the thickness S=8～12mm of the blade of present embodiment.The thickness S=10mm of preferred blade.Can satisfy the requirement of strength of blade.In present embodiment, undocumented technical characterictic is identical with the specific embodiment two.
The specific embodiment six: in conjunction with Fig. 1 and Fig. 3 explanation, the relief angle α of the blade of present embodiment
0=7～9 °.The relief angle α of preferred blade
0=8 °.Can satisfy the requirement of the large cutting of blade.In present embodiment, undocumented technical characterictic is identical with the specific embodiment five.
The specific embodiment seven: the anterior angle of the blade of present embodiment is 6～8 °.The anterior angle of preferred blade is 7 °.Can satisfy the requirement of the large cutting of blade.In present embodiment, undocumented technical characterictic is identical with the specific embodiment six.
The specific embodiment eight: the cutting edge inclination of the blade of present embodiment is 0 °.In present embodiment, undocumented technical characterictic is identical with the specific embodiment seven.
When V-arrangement point of a knife large axis forging roughing special blade of the present invention used, blade was fixed on knife bar (or cutterhead) by trip bolt.
Claims (8)
1. V-arrangement point of a knife large axis forging roughing special blade, the profile of described blade is the truncated rectangular pyramids shape, the area of blade bottom surface is less than the area of blade rake face, it is characterized in that: four outer edge of blade rake face are processed with respectively four negative chamfered edge cutting edges (4), every adjacent two the negative chamfered edge cutting edges (4) of blade junction is processed with respectively a V-arrangement point of a knife (7), the sharp corner of V-arrangement point of a knife (7) is processed with the facade perpendicular with the equidistant point of this V-arrangement point of a knife (7), the middle part of blade rake face is provided with the raised platform (5) of truncated rectangular pyramids shape, the area of described raised platform (5) front surface is less than the area of raised platform (5) bottom surface, the center, edge of blade rake face be provided with four protruding stupefied, protruding stupefied and raised platform (5) adjacent surface are the inclined-plane that tilts to blade bottom surface direction, by forming trapezoidal chip-breaker (2) between the inclined-plane of raised platform (5) and protruding stupefied inclined-plane, on the blade rake face, four V-arrangement points of a knife of next-door neighbour (7) locate to be provided with four rhombus projections (1), and four rhombus projections (1) are arranged on the corresponding diagonal of blade rake face, the geometric center place that is positioned at blade on raised platform (5) is processed with trip bolt counterbore (6) along the blade thickness direction, the neighboring that is positioned at trip bolt counterbore (6) on raised platform (5) is processed with circular radiating groove (8), be processed with respectively diagonal angle radiating groove (14) on four diagonal of raised platform (5), diagonal angle radiating groove (14) setting that communicates with circular radiating groove (8).
2. V-arrangement point of a knife large axis forging roughing special blade according to claim 1, it is characterized in that: the outside that is positioned at trip bolt counterbore (6) neighboring on the blade bottom surface is provided with square radiating groove (9), the outer circumference that is positioned at trip bolt counterbore (6) on the groove bottom of square radiating groove (9) is provided with radial heat radiation projection (10), and every outer peripheral middle part of blade bottom surface extremely is processed with the center line radiating groove (15) that communicates with square radiating groove (9) between the middle part of the corresponding groove edge of square radiating groove (9).
3. V-arrangement point of a knife large axis forging roughing special blade according to claim 2 is characterized in that: be positioned on knife face (16) after four of blade behind the place and be processed with inner sunken face (11) near the center line radiating groove (15) on knife face (16).
4. according to claim or 2 described V-arrangement point of a knife large axis forging roughing special blades, it is characterized in that: the cross centre line that is positioned at the blade rake face in trapezoidal chip-breaker (2) is provided with cutting edge reinforcement (3).
5. V-arrangement point of a knife large axis forging roughing special blade according to claim 2, is characterized in that: the thickness S=8～12mm of blade.
6. V-arrangement point of a knife large axis forging roughing special blade according to claim 5, is characterized in that: the relief angle α of blade
0=7～9 °.
7. V-arrangement point of a knife large axis forging roughing special blade according to claim 6, it is characterized in that: the anterior angle of blade is 6～8 °.
8. V-arrangement point of a knife large axis forging roughing special blade according to claim 7, it is characterized in that: the cutting edge inclination of blade is 0 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100859985A CN103143736A (en) | 2013-03-18 | 2013-03-18 | Special blade for roughly processing large axial forge piece with V-shaped tool noses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100859985A CN103143736A (en) | 2013-03-18 | 2013-03-18 | Special blade for roughly processing large axial forge piece with V-shaped tool noses |
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| Publication Number | Publication Date |
|---|---|
| CN103143736A true CN103143736A (en) | 2013-06-12 |
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ID=48542206
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100859985A Pending CN103143736A (en) | 2013-03-18 | 2013-03-18 | Special blade for roughly processing large axial forge piece with V-shaped tool noses |
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| CN (1) | CN103143736A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655427A (en) * | 2018-05-22 | 2018-10-16 | 哈尔滨理工大学 | A kind of indexable turnning and milling composite blade of heavy cutting |
| CN109552268A (en) * | 2019-01-30 | 2019-04-02 | 广州市道诺电子科技有限公司 | A kind of intelligent car washing installation of split type control |
| CN109926604A (en) * | 2018-05-15 | 2019-06-25 | 哈尔滨理工大学 | A kind of dedicated indexable turning blade of high temperature alloy roughing |
| CN112139527A (en) * | 2020-09-23 | 2020-12-29 | 哈尔滨理工大学 | Chip breaker cutter for cutting beryllium material |
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| US5743681A (en) * | 1993-04-05 | 1998-04-28 | Sandvik Ab | Cutting insert with chip control protrusion on a chip surface |
| US20110070040A1 (en) * | 2007-07-05 | 2011-03-24 | Taegu Tec, Ltd. | Cutting Insert Having a Corner Recess |
| CN102120267A (en) * | 2011-03-08 | 2011-07-13 | 哈尔滨理工大学 | Special efficient turning tool for hogging ultra-large axial forgings |
| JP4889300B2 (en) * | 2005-12-22 | 2012-03-07 | 京セラ株式会社 | Throw-away insert and cutting tool equipped with it |
| CN102744431A (en) * | 2012-07-24 | 2012-10-24 | 哈尔滨理工大学 | Grip type milling and turning composite special blade under extreme super-heavy load condition |
| CN202684122U (en) * | 2012-07-19 | 2013-01-23 | 哈尔滨理工大学 | Turning tool blade for rough machining of heavy cutting |
-
2013
- 2013-03-18 CN CN2013100859985A patent/CN103143736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5743681A (en) * | 1993-04-05 | 1998-04-28 | Sandvik Ab | Cutting insert with chip control protrusion on a chip surface |
| JP4889300B2 (en) * | 2005-12-22 | 2012-03-07 | 京セラ株式会社 | Throw-away insert and cutting tool equipped with it |
| US20110070040A1 (en) * | 2007-07-05 | 2011-03-24 | Taegu Tec, Ltd. | Cutting Insert Having a Corner Recess |
| CN102120267A (en) * | 2011-03-08 | 2011-07-13 | 哈尔滨理工大学 | Special efficient turning tool for hogging ultra-large axial forgings |
| CN202684122U (en) * | 2012-07-19 | 2013-01-23 | 哈尔滨理工大学 | Turning tool blade for rough machining of heavy cutting |
| CN102744431A (en) * | 2012-07-24 | 2012-10-24 | 哈尔滨理工大学 | Grip type milling and turning composite special blade under extreme super-heavy load condition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109926604A (en) * | 2018-05-15 | 2019-06-25 | 哈尔滨理工大学 | A kind of dedicated indexable turning blade of high temperature alloy roughing |
| CN108655427A (en) * | 2018-05-22 | 2018-10-16 | 哈尔滨理工大学 | A kind of indexable turnning and milling composite blade of heavy cutting |
| CN109552268A (en) * | 2019-01-30 | 2019-04-02 | 广州市道诺电子科技有限公司 | A kind of intelligent car washing installation of split type control |
| CN112139527A (en) * | 2020-09-23 | 2020-12-29 | 哈尔滨理工大学 | Chip breaker cutter for cutting beryllium material |
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Application publication date: 20130612 |