A kind of two-sided grooved Indexable cutting inserts
Technical field
The utility model relates to a kind of cutting tool, more specifically, relates to a kind of two-sided grooved Indexable cutting inserts.
Background technology
In prior art, indexable two-sided grooved cutting tip is conventional cutting tip, along with user is to the requirement of the surface quality of work piece, to the repetitive positioning accuracy of indexable insert tip, throw away tip, and all more and more higher to the requirement in indexable insert tip, throw away tip life-span when the workpiece that machining blanks surplus is uneven.
In machining, when indexable insert tip, throw away tip cutting edge strength is large, its life-span is strong, but work piece surface quality is poor; When indexable insert tip, throw away tip cutting edge is sharp, work piece surface quality is good, but blade cutting edge easily bursts apart, and its life-span will be greatly affected.
Utility model content
The technical problems to be solved in the utility model there are provided a kind of two-sided grooved Indexable cutting inserts, and this cutting tip has the structure that effectively can control the chip produced on workpiece, and energy chip removal smoothly, the surface quality of workpiece to be machined is good; And the cutting edge of indexable insert tip, throw away tip reaches good balance in intensity and sharpness, effectively improve the service life of blade.
Above-mentioned purpose of the present utility model is achieved by the following technical programs:
A kind of two-sided grooved Indexable cutting inserts is provided, comprises cutting edge 6 and the jut 7 of the periphery of blade body 1 rake face 8 being formed at described two-sided grooved Indexable cutting inserts; Described cutting edge 6 is two anterior angle cutting edges, and its tread is progressively increase progressively in certain distance range; Described pair of anterior angle comprises the first anterior angle δ tilted outside described blade and the second anterior angle θ tilted inside described blade; Described first anterior angle δ is 0 ° ~ 7 °, and described second anterior angle θ is 10 ° ~ 25 °; Described cutting edge 6 forms Circular Nose Cutting Edge 61 by the face of cylinder 5 is crossing with the upper surface 2 of blade body 1, forms side edge 62 by side 4 is crossing with upper surface 2, and the tread of described side edge 62 is progressively increase progressively in certain distance d; The side 10 of described jut 7 is the curved surface of constant relief angle γ, and from the side 10 of jut 7 to nose angle bisector L, the curved surface of relief angle change is the wall 9 of jut 7.
Preferably, described first anterior angle δ is 3 ° ~ 6 °; Described second anterior angle θ is 12 ° ~ 20 °.
Preferably, the tread of described side edge 62 is in progressively increasing progressively in certain distance d, and d is 1mm ~ 5mm.Further preferably, described d is 2mm ~ 4mm.
Preferably, described jut 7 is furnished with in fan-shaped recess 11, arranges scallop section 11 at jut 7, be conducive to the clamping of indexable insert tip, throw away tip, improve the repetitive positioning accuracy of indexable insert tip, throw away tip.Preferably, described recess 11 is symmetric about nose angle bisector L.
Further preferably, the fan angle of described fan-shaped recess 11 is α, α value is 10 ° ~ 50 °.
Further, described α value is 15 ° ~ 35 °.
Preferably, the wall 9 progressively relief angle increase of described jut 7, and reach maximum β in nose angle bisector L place relief angle.
Preferably, the side 10 of described jut 7 is the curved surface of constant relief angle γ, and the wall 9 of described jut 7 progressively relief angle increases, and reaches maximum β in nose angle bisector L place relief angle, and described relief angle γ is greater than relief angle β is 1 ° ~ 5 °.
Further preferably, described angle γ is greater than described maximum β is 1.5 ° ~ 4 °.
Preferably, described blade body 1 is polygon, is formed with centre bore 12 at blade body 1 center.
Further preferably, the structure of the lower surface 3 of described two-sided grooved Indexable cutting inserts is with upper surface 2.
The utility model provides a kind of highly preferred technical scheme: described two-sided grooved Indexable cutting inserts comprises and has polygonal blade body 1, and described blade body 1 comprises the side 4 of upper surface 2, lower surface 3, multiple connection upper surface 2 and lower surface 3, the centre bore 12 be formed centrally in blade body 1, the cutting edge 6 being formed at the periphery of described blade body 1 rake face 8 and jut 7; Described cutting edge 6 is two anterior angle cutting edges, and its tread is progressively increase progressively in certain distance range; Described pair of anterior angle comprises the first anterior angle δ tilted outside described blade and the second anterior angle θ tilted inside described blade; Described first anterior angle δ is 0 ° ~ 7 °, and described second anterior angle θ is 10 ° ~ 25 °; The angle γ that described jut 7 is constant with lower surface 3 one-tenth; Adjacent two sides are connected by the face of cylinder 5; Described cutting edge 6 comprises and intersects by the face of cylinder 5 Circular Nose Cutting Edge 61 that formed crossing with upper surface 2 with by side 4 and upper surface 2 side edge 62 formed; The tread of described side edge 62 is progressively increase progressively from Circular Nose Cutting Edge 61 in the middle part of side edge 62 in certain distance d, and described d is 1mm ~ 5mm; The wall 9 of described jut 7 is the curved surface progressively increased to nose angle bisector L angle from the side 4 of jut 7, and reaches maximum β in nose angle bisector L place angle; It is 1 ° ~ 5 ° that described angle γ is greater than maximum β; Described jut 7 is furnished with one in fan-shaped recess 11, described fan angle α is 10 ° ~ 50 °; The structure of the lower surface 3 of described two-sided grooved Indexable cutting inserts is with upper surface 2.
Preferably, described first anterior angle δ is 3 ° ~ 6 °; Described second anterior angle θ is 12 ° ~ 20 °.
Preferably, described tread d is 2mm ~ 4mm.
Preferably, described angle γ is greater than described maximum β is 1.5 ° ~ 4 °.
Preferably, described angle [alpha] is 15 ° ~ 35 °.
The beneficial effects of the utility model are as follows:
Cutting edge of the present utility model adopts two anterior angle, and the design adopting change of edge wide within the scope of certain distance, effectively balance sharpness and the robustness of cutting edge, scallop section is arranged further at jut, be conducive to the clamping of indexable insert tip, throw away tip, improve the repetitive positioning accuracy of indexable insert tip, throw away tip, especially have good performance to during the work pieces process that blank allowance is uneven.Therefore, when machining, not only meet the requirement of user to work piece surface quality, and fully reach the requirement of user to the indexable insert tip, throw away tip life-span.
Accompanying drawing explanation
Fig. 1 is the stereogram of this practical Indexable cutting inserts.
Fig. 2 is the top view of this practical Indexable cutting inserts.
Fig. 3 is the zoomed-in view in the F portion of cutting tip shown in Fig. 2.
Fig. 4 is the sectional view of cutting tip shown in Fig. 2 along B-B line.
Fig. 5 is the sectional view of cutting tip shown in Fig. 3 along D-D line.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.The utility model embodiment accompanying drawing, only for exemplary illustration, can not be interpreted as restriction of the present utility model.To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
embodiment 1
As shown in Figure 1, the utility model provides a kind of two-sided grooved Indexable cutting inserts, comprises cutting edge 6 and the jut 7 of the periphery of blade body 1 rake face 8 being formed at described two-sided grooved Indexable cutting inserts; Described cutting edge 6 is two anterior angle cutting edges, and its tread is progressively increase progressively in certain distance range; As shown in Figure 4, described pair of anterior angle comprises the first anterior angle δ tilted outside described blade and the second anterior angle θ tilted inside described blade; Described first anterior angle δ is 0 ° ~ 7 °, and described second anterior angle θ is 10 ° ~ 25 °, in the present embodiment, and the first anterior angle δ is 4 °, and the second anterior angle θ is 15 °; Described cutting edge 6 forms Circular Nose Cutting Edge 61 by the face of cylinder 5 is crossing with the upper surface 2 of blade body 1, forms side edge 62 by side 4 is crossing with upper surface 2, and the tread of described side edge 62 is progressively increase progressively in certain distance d; The side 10 of described jut 7 is the curved surface of constant relief angle γ, and from the side 10 of jut 7 to nose angle bisector L, the curved surface of relief angle change is the wall 9 of jut 7.
As shown in Figure 2, the tread of described side edge 62 is progressively increase progressively from Circular Nose Cutting Edge 61 in the middle part of side edge 62 in certain distance d, and described d is 1mm ~ 5mm, and in the present embodiment, d is 3mm; The wall 9 of described jut 7 is from the side of jut 7 to nose angle bisector L(as shown in Figure 3) curved surface that progressively increases of angle, and reach maximum β in nose angle bisector L place angle, as shown in Figure 4; It is 1 ° ~ 5 °, in the present embodiment that described angle γ is greater than maximum β, and it is 2 ° that γ is greater than β.
Described jut 7 is furnished with one in fan-shaped recess 11, as shown in Figure 2, described fan angle α is 10 ° ~ 50 °, and in the present embodiment, α is 25 °, and described recess 11 is symmetric about nose angle bisector L.Arrange scallop section 11 at jut 7, be conducive to the clamping of indexable insert tip, throw away tip, improve the repetitive positioning accuracy of indexable insert tip, throw away tip.
Described blade body 1 is polygon, is formed with centre bore 12 at blade body 1 center.
embodiment 2
In the present embodiment, two-sided grooved Indexable cutting inserts described in the utility model, cutting edge forms Circular Nose Cutting Edge by the face of cylinder 5 is crossing with the lower surface 3 of blade body 1, side edge is formed by side 4 is crossing with lower surface 3, other structures, with embodiment 1, namely form the two-sided grooved Indexable cutting inserts that upper surface 2 and lower surface 3 all can carry out cutting.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included in of the present utility model comprising within scope.