CN209452826U - A kind of CBN carbide chip - Google Patents

Abstract

The utility model belongs to auto parts and components processing equipment field, and in particular to a kind ofCBNCarbide chip, comprising: the matrix of diamond shape and be mounted on the several of matrix edges and cornersCBNBlade；It is wherein describedCBNBlade includes: cutting edge positioned at rake face and flank junction, the 3D chip-breaker that is provided between cutting edge and flank；And the cutting edge is suitable for cutting workpiece and generates chip, and disconnects chip by 3D chip-breaker.It is possible to prevente effectively from chip is wrapped on cutter or workpiece, cause chip removal unsmooth, under the premise of guaranteeing processing effect and production efficiency, also improves cutting-tool's used life.

Description

A kind of CBN carbide chip

Technical field

The utility model relates to auto parts and components processing equipment fields, and in particular to a kind ofCBNCarbide chip.

Background technique

Cubic boron nitride (CBN) it is not superhard material or a kind of insulator and splendid that hardness is only second to diamond Heat carrier has very high thermal stability and the chemical inertness to iron group metal and its alloy, therefore is widely used in high rigidity The machining of material and difficult-to-machine material, especially auto parts and components.In the market existing carbide chip andCBNKnife Piece, when carrying out machining, due to lacking necessary chip breaking structure (as shown in Figure 3), chip can continue constantly, to process with Cutter is all unfavorable or even some chips can be also wrapped on cutter or workpiece, causes chip removal unsmooth, and not only the service life of cutter is short, Processing effect and production efficiency can also be reduced.

Utility model content

The purpose of the utility model is to provide one kindCBNCarbide chip, by being provided with cutting edge and flank Between 3D chip-breaker disconnect chip.

In order to solve the above-mentioned technical problem, the utility model provides one kindCBNCarbide chip, comprising: diamond shape Matrix and it is mounted on the several of matrix edges and cornersCBNBlade；It is wherein describedCBNBlade includes: to hand over positioned at rake face and flank The cutting edge at the place of connecing, the 3D chip-breaker being provided between cutting edge and flank；And the cutting edge is produced suitable for cutting workpiece Raw chip, and chip is disconnected by 3D chip-breaker.

Further, describedCBNThe horizontal cross-section of blade is isosceles triangle, and two waist edges form the cutting edge；And The end of the cutting edge passes through arc transition.

Further, the degree of the circular arc is 75-85 °, radius 0.6-0.9mm.

Further, the 3D chip-breaker is cambered surface groove, and is arranged along the inside edge of cutting edge.

Further, the 3D chip-breaker is from slot bottom to two trough rims in flared.

Further, the width of the 3D chip-breaker gradually becomes smaller from end to two sides.

Further, describedCBNBlade is two, is symmetricly set on the long-diagonal of matrix.

Further, the material of described matrix is golden alloy, is suitable for installing by welding manner eachCBNBlade.

The utility model has the beneficial effects that the utility modelCBNCarbide chip by be provided with cutting edge with 3D chip-breaker between flank disconnects chip and causes chip removal unsmooth it is possible to prevente effectively from chip is wrapped on cutter or workpiece, Under the premise of guaranteeing processing effect and production efficiency, cutting-tool's used life is also improved.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the utility modelCBNThe structural schematic diagram of carbide chip；

Fig. 2 is the utility modelCBNThe top view of carbide chip；

Fig. 3 is existingCBNThe structural schematic diagram of blade；

In figure: matrix 1, mounting hole 11,CBNBlade 2, rake face 21, flank 22, cutting edge 23, the end of cutting edge 23 Portion 231,3D chip-breaker 24.

Specific embodiment

The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram, Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.

Fig. 1 is the utility modelCBNThe structural schematic diagram of carbide chip.

Fig. 2 is the utility modelCBNThe top view of carbide chip.

As depicted in figs. 1 and 2, one kind is present embodiments providedCBNCarbide chip, comprising: the matrix 1 and peace of diamond shape Mounted in the several of 1 edges and corners of matrixCBNBlade 2；It is wherein describedCBNBlade 2 includes: to join positioned at rake face 21 and flank 22 The cutting edge 23 at place, the 3D chip-breaker 24 being provided between cutting edge 23 and flank 22；And the cutting edge 23 is suitable for cutting Turning work piece generates chip, and disconnects chip by 3D chip-breaker 24.

Optionally, see Fig. 2, it is describedCBNBlade 2 is two, is symmetricly set on the long-diagonal of matrix 1.In matrix 1 Portion is provided with installationCBNThe mounting hole 11 of carbide chip, when one of themCBNAfter blade cut abrasion, it can incite somebody to actionCBN Carbide chip rotates 180 °, makes anotherCBNBlade is improved for cuttingCBNThe whole of carbide chip uses Service life.

Optionally, the material of described matrix 1 is golden alloy, is suitable for installing by welding manner eachCBNBlade 2.

The present embodimentCBNCarbide chip is cut by the 3D chip-breaker disconnection being provided between cutting edge and flank Bits, it is possible to prevente effectively from chip is wrapped on cutter or workpiece, cause chip removal unsmooth, are guaranteeing processing effect and production efficiency Under the premise of, also improve cutting-tool's used life.

AsCBNA kind of optional embodiment of blade.

See Fig. 2, it is describedCBNThe horizontal cross-section of blade 2 is isosceles triangle, and two waist edges form the cutting edge 23；With And the end 231 of the cutting edge 23 passes through arc transition.

Optionally, the degree of the circular arc is 75-85 °, radius 0.6-0.9mm.Preferably, the degree of the circular arc is 80 °, radius 0.8mm.

Present embodimentCBNThe end of cutting edge by arc transition, can not only have been reduced cutting edge abrasion by blade, but also Processing effect can be improved.If the end of cutting edge is too sharp (circular arc degree is too small), not only the abrasion loss of cutting edge can be increased, It is too deep also to will cause cutting mark, damages cutter, reduces chip effect.If the end of cutting edge is too blunt (circular arc degree is excessive), Stock-removing efficiency can be reduced, to reduce production efficiency.

A kind of optional embodiment as 3D chip-breaker.

See that Fig. 1, the 3D chip-breaker 24 are cambered surface groove, and are arranged along the inside edge of cutting edge 23.

Preferably, see that Fig. 1, the 3D chip-breaker 24 are in flared from slot bottom to two trough rims, i.e., slot bottom width is small, trough rim is wide Degree is big, can not only guarantee that chip breaking acted in this way, but also fills or be caught in 3D chip-breaker after can disconnecting to avoid chip, influences subsequent Chip breaking effect.

Preferably, see that Fig. 1, the width of the 3D chip-breaker 24 gradually become smaller from its end to two sides.Due to 3D chip-breaker End and the end of cutting edge be correspondingly arranged, so the chip of 3D chip-breaker end is relatively more, by the width of 3D chip-breaker Degree setting can be adapted to scrap rate, form good channel of chip removal, further increase chip removal in gradually becoming smaller from end to two sides Fluency.

Present embodiment 3D chip-breaker design in from slot bottom to two trough rims be in flared, width from end to two sides gradually Become smaller, ensure that the lasting chip breaking effect of 3D chip-breaker, improve chip removal fluency；It is simultaneously that the design of 3D chip-breaker is recessed in cambered surface The stress that slot can also reduce 3D chip-breaker in cutting process is concentrated, and prevents from damagingCBNBlade.

Fig. 3 is existingCBNThe structural schematic diagram of blade.

As shown in figure 3, existing carbide chip andCBNBlade lacks necessary chip breaking structure, such as the present embodiment 3D chip-breaker, in cutting metal workpiece, chip can continue constantly, or even be wrapped on cutter or workpiece, cause chip removal unsmooth. And in the present embodiment, thisCBNCarbide chip between cutting edge and flank by being arranged 3D chip-breaker for disconnecting Chip improves chip removal effect it is possible to prevente effectively from chip is wrapped on cutter or workpiece, is particularly suited for auto parts and components, example The machining of such as gear.

In conclusion thisCBNCarbide chip is disconnected by the 3D chip-breaker being provided between cutting edge and flank The design of 3D chip-breaker is in especially cambered surface groove by chip, and is in flared from slot bottom to two trough rims, and width is from end to two sides It gradually becomes smaller, the stress for both having reduced 3D chip-breaker in cutting process is concentrated, it is ensured that the effect of lasting chip breaking, the row of improving Consider fluency to be worth doing；In addition, willCBNThe cutting edge end of blade can not only reduce cutting edge abrasion by arc transition, but also can mention High processing effect.Therefore, originallyCBNCarbide chip has the advantages that chip removal is smooth, processing effect is good, long service life.

It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims Property range.

Claims (8)

1. a kind of CBN carbide chip characterized by comprising

The matrix (1) of diamond shape and several CBN blades (2) for being mounted on matrix (1) edges and corners；Wherein

The CBN blade (2) include: positioned at rake face (21) with flank (22) junction cutting edge (23), be provided with and cut Cut the 3D chip-breaker (24) between sword (23) and flank (22)；And

The cutting edge (23) is suitable for cutting workpiece and generates chip, and disconnects chip by 3D chip-breaker (24).

2. CBN carbide chip according to claim 1, which is characterized in that

The horizontal cross-section of the CBN blade (2) is isosceles triangle, and two waist edges form the cutting edge (23)；And

The end (231) of the cutting edge (23) passes through arc transition.

3. CBN carbide chip according to claim 2, which is characterized in that

The degree of the circular arc is 75-85 °, radius 0.6-0.9mm.

4. CBN carbide chip according to claim 1, which is characterized in that

The 3D chip-breaker (24) is cambered surface groove, and is arranged along the inside edge of cutting edge (23).

5. CBN carbide chip according to claim 4, which is characterized in that

The 3D chip-breaker (24) is from slot bottom to two trough rims in flared.

6. CBN carbide chip according to claim 4, which is characterized in that

The width of the 3D chip-breaker (24) gradually becomes smaller from its end to two sides.

7. CBN carbide chip according to claim 1, which is characterized in that

The CBN blade (2) is two, is symmetricly set on the long-diagonal of matrix (1).

8. CBN carbide chip according to claim 1, which is characterized in that

The material of described matrix (1) is golden alloy, suitable for installing each CBN blade (2) by welding manner.