CN204294957U - With the numerical control turning superhard cutting blade of V-type cubic boron nitride cutting unit - Google Patents
With the numerical control turning superhard cutting blade of V-type cubic boron nitride cutting unit Download PDFInfo
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- CN204294957U CN204294957U CN201420689125.5U CN201420689125U CN204294957U CN 204294957 U CN204294957 U CN 204294957U CN 201420689125 U CN201420689125 U CN 201420689125U CN 204294957 U CN204294957 U CN 204294957U
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- boron nitride
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Abstract
With the numerical control turning superhard cutting blade of V-type cubic boron nitride cutting unit, belong to metal cutting tool technical field.Weld cubic boron nitride cutting unit by hard alloy substrate to form, described cubic boron nitride cutting unit is V-type cubic boron nitride cutting unit, the upper and lower end face of hard alloy substrate respectively has 2 acute angles, each acute angle all there is a V-type cubic boron nitride cutting unit, described hard alloy substrate is provided with V-type projection, V-type cubic boron nitride cutting unit is crossed in V-type projection, and V-type cubic boron nitride cutting unit inwall and V-type projection are fitted.The utility model utilizes V-type cubic boron nitride cutting unit, adds cross section bonding area, improves weld strength, improves cutting toughness and the anti-impact force of blade.Decrease cubic boron nitride cutting unit upper surface area, make circular cubic boron nitride composite piece blank can cut to more V-type cubic boron nitride cutting unit when area is certain, saving resource, cuts the waste.
Description
Technical field
The utility model relates to a kind of for the indexable numerical control turning superhard cutting blade of high-hardness metal material fine finishining with V-type cubic boron nitride cutting unit, belongs to metal cutting tool technical field.
Background technology
Conventional cubic boron nitride blade is welded on hard alloy substrate by the conventional cubic boron nitride cutting unit without grooved and forms, in the hard metal material processing of height, usual use carries out dry cutting to reach the object of alternative grinding technique without the turning superhard cutting blade of grooved to high-hardness metal material, and the cutting edge front end of these blades is only with negative chamfered edge.Although it is little that this type of blade has volume, hardness is high, cutting edge wearability is strong, the features such as versatility is stronger, but because its rake face is simple, waste area is larger, without point of a knife inclination angle, cutting zone is too much, therefore there is production cost high, bonding area is little, poor toughness, cutting resistance is large, cutting detritus is long, blade tip temperature crosses the high defect affecting blade life, particularly in high rigidity, cutting temperature is there is high in the working angles of high viscosity metal material, it is serious that sclerosis is cut in processing, easy formation built-up edge, the problems such as the large and surface quality of plastic deformation resistance and precision not easily ensure, cubic boron nitride material is failed to be performed to completely in process by material characteristics in the most rational material-saving mode.
Utility model content
The purpose of this utility model is exactly the deficiency existed for above-mentioned existing cubic boron nitride blade, a kind of numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit is provided, reach and make rational use of resources, solve the cutting technology difficult problems such as detritus accumulation that current high-hardness metal material runs in fine finishining, blade tip tipping, crescent hollow abrasion be serious simultaneously, improve blade service life and working (machining) efficiency.
For realizing above-mentioned utility model object, the technical solution of the utility model is as follows: with the numerical control turning superhard cutting blade of V-type cubic boron nitride cutting unit, weld cubic boron nitride cutting unit by hard alloy substrate to form, it is characterized in that, described cubic boron nitride cutting unit is V-type cubic boron nitride cutting unit, hard alloy substrate upper, respectively there are 2 acute angles lower surface, each acute angle all there is a V-type cubic boron nitride cutting unit, described hard alloy substrate is provided with V-type projection, V-type cubic boron nitride cutting unit is crossed in V-type projection, V-type cubic boron nitride cutting unit inwall and V-type projection are fitted.
The blade tip angle α of described V-type cubic boron nitride cutting unit is consistent with the sharp angle of described hard alloy substrate.
Described V-type cubic boron nitride cutting unit inwall angle β is consistent with V-type protrusion angle, and the width c between the inside and outside wall of V-type cubic boron nitride cutting unit is 0.2-1.5mm.
Described blade surrounding is provided with negative chamfered edge, and negative chamfered edge angle a is 10 °-35 °, and width b is 0.05mm-0.3mm.
Described V-type cubic boron nitride cutting unit inwall is with chamfered edge, and the cross section angle g of chamfered edge is 30 °-60 °, and width d is 0.05-0.2mm.
Described V-type cubic boron nitride cutting unit thickness e is 0.8-2mm.
Described hard alloy substrate upper and lower end face has groove along two sharp-angled apex line directions, and groove width f is 1-4mm, and groove depth is identical with V-type cubic boron nitride cutting unit inwall chamfered edge width d, and groove length h is 1-6m.
The blade tip angle α of described V-type cubic boron nitride cutting unit is: 35 ° or 55 ° or 60 ° or 80 ° or 90 °, inwall angle β is: 35 ° or 55 ° or 60 ° or 80 ° or 90 °.
The utility model design science is reasonable, is applicable to high-hardness metal material fine finishining.The upper and lower end face of blade respectively has on two or more acute angle, each acute angle and all has a V-type cubic boron nitride cutting unit.The design of V-type cubic boron nitride cutting unit considerably increases the cutting quantity of cubic boron nitride composite piece blank in unit are, each V-type cubic boron nitride cutting unit blade tip angle α is determined by blade shapes, inwall forms angle β, and as α=β, V-type cubic boron nitride cutting unit both sides width c is constant; As α ≠ β, c is gradual change amount, and c general range is 0.2-1.5mm.In inwall and hard alloy substrate, V-type projection is fitted.V-type projection limits V-type cubic boron nitride cutting unit horizontal direction and moves, thus V-type cubic boron nitride cutting unit welding precision before ensure that welding.Negative chamfered edge with fixed angle a and fixed width b sweeping in being distributed in blade surrounding.V-type cubic boron nitride cutting unit inwall is d with chamfered edge cross section angle g width perseverance.V-type cubic boron nitride cutting unit fixed thickness perseverance is e.Hard alloy substrate upper and lower end face has groove along two sharp-angled apex line directions, and groove width perseverance is f, and groove depth is all d with V-type cubic boron nitride cutting unit inwall chamfered edge width.Groove forms concave station near blade tip part, effectively limit the possibility of cubic boron nitride cutting unit transverse shifting, improves cubic boron nitride cutting unit and put precision.Blade tip angle α changes with blade shapes, and inwall forms angle β and also can change according to demand, negative chamfered edge width and angle along with blade sizes different and change, f changes with β angle.
The utility model compared with prior art, has following beneficial effect:
1. cubic boron nitride cutting unit is designed to V-type by the utility model dexterously, and rationally cut the waste area, take diameter as the circular composite sheet of 60mm blank cubic boron nitride is example, and original mode cutting can cut 408 cubic boron nitride cutting units; And adopt the utility model project organization can cut 503 cubic boron nitride cutting units, nearly 23% cubic boron nitride cutting unit can be cut more in unit are, greatly save production cost.
2. the V-type design of uniqueness considerably increases integral solder area, and before improving for CN type blade, bonding area is for 10.9mm
2, after improving, bonding area reaches 12.5mm
2; Bonding area adds nearly 15%, V-type cubic boron nitride cutting unit is welded more abundant with hard alloy substrate, adds the cutting hardness of blade in process, improves blade cut toughness simultaneously.
The sunk part that 3.V type cubic boron nitride cutting unit inwall and hard alloy substrate shallow slot are formed, shallow slot length can change according to demand, make blade in working angles, have certain chip breaking ability, Continuous maching process avoids the processing difficult problems such as the too short and surface roughness of the built-up edge generation time caused because detritus is long is too low, simultaneously this cutting blade structure design also makes this novel heat conductivity in working angles and cooling effect are also met consumers' demand greatly, improves blade life.
4. the way of contact of hard alloy substrate shallow slot front end boss and V-type cubic boron nitride cutting unit inwall uniqueness, effectively increase the accuracy of the front cubic boron nitride cutting unit of welding and hard alloy substrate putting position, adopting this design that cubic boron nitride cutting unit can be avoided to put, deviation is excessive causes the higher phenomenon of percent defective, under the prerequisite of precision is put in strict control, the monolateral grinding allowance of suitable reduction cubic boron nitride cutting unit, improve grinding efficiency, save processing cost.
5. α, β angle design significantly reduces the production cost of raw material, as α=β, cubic boron nitride cutting unit V-type both sides constant width, as α ≠ β, both sides width is then gradual change value, this design can meet the mobility of raw material cutting in production greatly, inner side angle β can cut into as required as 35 °, 55 °, 60 °, 80 °, the standard insert blade tip angles such as 90 °, make same a slice circular blanks cubic boron nitride composite piece under the prerequisite of area that rationally cuts the waste, also can meet the requirement of maneuverability in production like this, greatly reduce production cost.
6.V type cubic boron nitride cutting unit inwall chamfered edge designs, can by detritus by cubic boron nitride cutting unit rounding off to carbide alloy end face, and possess certain chip breaking ability, reduce rake wear possibility.
7. the CN type of to be 0 ° of acute angle be convex leg-of-mutton WN type, the anterior angle of 80 ° that namely flute profile of the present utility model is suitable for anterior angle to be 0 ° of acute angle be rhombic quadrangles VN type, the anterior angle of 35 ° to be 0 ° of acute angle be rhombic quadrangles DN type, the anterior angle of 55 ° to be 0 ° of acute angle be 80 ° of rhombic quadrangles, anterior angle are 0 ° of acute angle be 60 ° of leg-of-mutton TN types and anterior angle be 0 ° of blade tip angle is 90 ° of indexable numerical control turning superhard cutting blades of foursquare SN type standard, is equally also applicable to the indexable numerical control turning blade of standard of various anterior angle and non-standard indexable numerical control turning blade.
The utility model grooved, for CN type blade, has played the cutting characteristic of cubic boron nitride material in high rigidity machining to greatest extent.
Accompanying drawing explanation
Fig. 1 a is the conventional cubic boron nitride cutting unit schematic diagram that cubic boron nitride matrix cuts.
Fig. 1 b cubic boron nitride matrix cuts V-type cubic boron nitride cutting unit schematic diagram of the present utility model.
Cutting mode schematic diagram when Fig. 1 c is the α=β of the utility model V-type cubic boron nitride cutting unit.
Cutting mode schematic diagram when Fig. 1 d is the α ≠ β of the utility model V-type cubic boron nitride cutting unit.
Fig. 2 a is conventional cubic boron nitride cutting unit bonding area schematic diagram.
Fig. 2 b is V-type cubic boron nitride cutting unit bonding area schematic diagram of the present utility model.
Fig. 3 a is that conventional cubic boron nitride cutting unit puts schematic diagram.
Fig. 3 b is that V-type cubic boron nitride cutting unit of the present utility model puts schematic diagram.
Fig. 4 is the blade tip partial schematic diagram of blade of the present utility model (CN type).
Fig. 5 is blade of the present utility model (CN type) integral plane schematic diagram.
Fig. 6 a is A-A generalized section in Fig. 5.
Fig. 6 b is B-B generalized section in Fig. 5.
Fig. 6 c is C-C generalized section in Fig. 5.
In figure: 1, V-type cubic boron nitride cutting unit, 2, hard alloy substrate, 3, inwall chamfered edge, 4, negative chamfered edge, 5, groove, 6, concave station.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
With the numerical control turning superhard cutting blade of V-type cubic boron nitride cutting unit, weld cubic boron nitride cutting unit by hard alloy substrate to form, cubic boron nitride cutting unit is V-type cubic boron nitride cutting unit, the upper and lower end face of hard alloy substrate respectively has 2 acute angles, each acute angle all there is a V-type cubic boron nitride cutting unit, described hard alloy substrate is provided with V-type projection, V-type cubic boron nitride cutting unit is crossed in V-type projection, and V-type cubic boron nitride cutting unit inwall and V-type projection are fitted.The blade tip angle α of V-type cubic boron nitride cutting unit is consistent with the sharp angle of described hard alloy substrate.β is consistent with V-type protrusion angle for V-type cubic boron nitride cutting unit inwall angle, and the width c between the inside and outside wall of V-type cubic boron nitride cutting unit is 0.2-1.5mm.Blade surrounding is provided with negative chamfered edge, and negative chamfered edge angle a is 10 °-35 °, and width b is 0.05mm-0.3mm.V-type cubic boron nitride cutting unit inwall is with chamfered edge, and the cross section angle g of chamfered edge is 30 °-60 °, and width d is 0.05-0.2mm.V-type cubic boron nitride cutting unit thickness e is 0.8-2mm.Hard alloy substrate upper and lower end face has groove along two sharp-angled apex line directions, and groove width f is 1-4mm, and groove depth is identical with V-type cubic boron nitride cutting unit inwall chamfered edge width d, and groove length h is 1-6m.Groove 5 forms concave station 6 near blade tip part.The blade tip angle α of V-type cubic boron nitride cutting unit is: 35 ° or 55 ° or 60 ° or 80 ° or 90 °, inwall angle β is: 35 ° or 55 ° or 60 ° or 80 ° or 90 °.
As shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 1 d, at diameter be 60 ㎜ matrix on cut V-type cubic boron nitride cutting unit of the present utility model and conventional cubic boron nitride cutting unit, the V-type cubic boron nitride cutting unit cutting quantity that the utility model uses adds 95, and when α, β angle is identical and different cutting effect figure, this design makes materials control more maneuverability in production, greatly saves production cost.Fig. 2 a, Fig. 2 b are the contrast on the utility model and usual manner bonding area.
Fig. 3 a, Fig. 3 b is depicted as the utility model and contrasts with disposing way in conventional production, the V-type concave station of the utility model hard alloy substrate effectively limit the transverse shifting possibility of V-type cubic boron nitride cutting unit, make cubic boron nitride cutting unit putting position more accurate, Fig. 4, Fig. 5 is CN type blade cut sword partial enlarged drawing of the present utility model and integral plane schematic diagram, V-type cubic boron nitride cutting unit is positioned on blade acute angle, V-type cubic boron nitride cutting unit 1 is by negative chamfered edge 4, inwall chamfered edge 3 is formed, V-type cubic boron nitride cutting unit blade tip angle [alpha] changes with blade shapes, inwall angle beta, as α=β, width c is constant, as α ≠ β, c is gradual change amount, c is generally 0.2-1.5mm.Fig. 6 a, Fig. 6 b, Fig. 6 c are each sectional position sectional view in Fig. 5, and wherein negative chamfered edge 4 is surrounded on blade surrounding with fixed angle a and fixed width b sweeping, and a is generally 10 °-35 °, and b is generally 0.05-0.3mm; Inwall chamfered edge fixed angle g, width and groove 5 degree of depth are all d, and angle g is generally 30 °-60 °, and width d is generally 0.05-0.2mm; Groove groove width f is that 1-4mm, groove length h can change according to demand with angle beta excursion, and h scope is generally 1-6mm; Cubic boron nitride cutting unit thickness perseverance is e, is generally 0.8-2mm.Groove 5 forms concave station 6 near blade tip part, effectively limit the possibility of cubic boron nitride cutting unit transverse shifting, improves cubic boron nitride cutting unit and put precision.
Claims (8)
1. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit, weld cubic boron nitride cutting unit (1) by hard alloy substrate (2) to form, it is characterized in that, described cubic boron nitride cutting unit is V-type cubic boron nitride cutting unit (1), hard alloy substrate (2) upper, respectively there are 2 acute angles lower surface, each acute angle all there is a V-type cubic boron nitride cutting unit (1), described hard alloy substrate (2) is provided with V-type projection (6), V-type cubic boron nitride cutting unit (1) is crossed in V-type projection (6), V-type cubic boron nitride cutting unit (1) inwall and V-type projection (6) are fitted.
2. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit according to claim 1, is characterized in that: the blade tip angle α of described V-type cubic boron nitride cutting unit (1) is consistent with the sharp angle of described hard alloy substrate (2).
3. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit according to claim 1, it is characterized in that: described V-type cubic boron nitride cutting unit (1) inwall angle β is consistent with V-type projection (6) angle, and the width c between V-type cubic boron nitride cutting unit (1) inside and outside wall is 0.2-1.5mm.
4. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit according to claim 1, is characterized in that: described blade surrounding is provided with negative chamfered edge (4), and negative chamfered edge (4) angle a is 10 °-35 °, and width b is 0.05mm-0.3mm.
5. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit according to claim 1, it is characterized in that: described V-type cubic boron nitride cutting unit (1) inwall is with chamfered edge (3), the cross section angle g of chamfered edge (3) is 30 °-60 °, and width d is 0.05-0.2mm.
6. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit according to claim 1, is characterized in that: described V-type cubic boron nitride cutting unit (1) thickness e is 0.8-2mm.
7. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit according to claim 1, it is characterized in that: described hard alloy substrate (2) upper and lower end face has groove (5) along two sharp-angled apex line directions, groove width f is 1-4mm, groove depth is identical with V-type cubic boron nitride cutting unit (1) inwall chamfered edge (3) width d, and groove length h is 1-6m.
8. the numerical control turning superhard cutting blade with V-type cubic boron nitride cutting unit according to claim 1, it is characterized in that: the blade tip angle α of described V-type cubic boron nitride cutting unit (1) is: 35 ° or 55 ° or 60 ° or 80 ° or 90 °, inwall angle β is: 35 ° or 55 ° or 60 ° or 80 ° or 90 °.
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| CN201420689125.5U CN204294957U (en) | 2014-11-18 | 2014-11-18 | With the numerical control turning superhard cutting blade of V-type cubic boron nitride cutting unit |
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| CN201420689125.5U CN204294957U (en) | 2014-11-18 | 2014-11-18 | With the numerical control turning superhard cutting blade of V-type cubic boron nitride cutting unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234439A (en) * | 2015-11-23 | 2016-01-13 | 江苏切剀刀具有限公司 | Cutter blade and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234439A (en) * | 2015-11-23 | 2016-01-13 | 江苏切剀刀具有限公司 | Cutter blade and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20171118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |