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US 7,476,061 B2Granted
Turning tool and an indexable turning insert, as well as an attachment for such turning tools
AssigneeSandvik Intellectual Property AB
InventorDaniel Edler
Life of this patent
Estimating the term…
Abstract
An indexable turning insert, which has a symmetrical, preferably rotationally symmetrical basic shape, that is determined by a clearance surface extending between a top side and an underside, and which includes a cutting edge as well as a coupling device located to the underside. The coupling device comprises at least two, preferably three, suitably equiangularly spaced-apart engagement members, preferably in the form of ridges, emanating radially from a center axis and having a pair of flanks that mutually form an obtuse angle. A turning tool and an attachment for the same is also disclosed.
Claims28
A turning tool, comprising:
- a basic body having an insert seat defined by a center axis;
- a turning insert detachably mounted in the insert seat, said turning insert being indexable and having, about the center axis, a symmetrical basic shape that is determined by a clearance surface extending between a top side and an underside, said turning insert including a chip-removing cuffing edge adjacent to the top side;
- said turning insert including coupling means formed in the underside, said coupling means including an elongate engagement member having a pair of spaced-apart flanks which are inclined relative to each other at a certain angle in a cross-sectional plane being perpendicular to a length extension of the engagement member, said coupling means of the turning insert mechanically engaging a complementary coupling means that forms the insert seat of the basic body and likewise includes an elongate engagement member having a pair of spaced-apart flanks which are inclined relative to each other at an angle as viewed in a cross-sectional plane being perpendicular to a length extension thereof;
- wherein a first one of the two coupling means comprises three radially extending and equiangularly spaced-apart engagement members;
- and the second one of the two coupling means comprises at least two engagement members extending radially from the center axis and forming the same angle as two of the three engagement members of the first coupling means as viewed towards a plane view being perpendicular to the center axis, wherein the angle between the pairs of flanks of each individual engagement member is obtuse.
2 more elements
An indexable turning insert, comprising:
- a symmetrical basic shape around a center axis that is defined by a clearance surface extending between a top side and an underside;
- a chip-removing cutting edge disposed adjacent to the top side;
- coupling means located to the underside, said coupling means comprising an elongate engagement member having a pair of spaced-apart flanks which are inclined relative to each other at a certain angle as viewed in a cross-sectional plane being perpendicular to a length extension of the engagement member, wherein the coupling means comprises at least two engagement members extending radially from the center axis and forming an angle different from 180°;
- wherein the angle between the pairs of flanks of each individual engagement member when viewed in the cross-sectional plane is obtuse.
1 more element
A turning tool, comprising:
- a basic body having an insert seat defined by a center axis;
- a turning insert detachably mountable in the insert seat, said turning insert being indexable and having, about the center axis, a symmetrical basic shape that is determined by a clearance surface extending between a top side and an underside, said turning insert including a chip-removing cuffing edge adjacent to the top side;
- said turning insert including coupling means formed in the underside, said coupling means including an elongate engagement member having a pair of spaced-apart flanks which extend outwardly from said underside in the same direction as said center axis, said spaced apart flanks are inclined toward a line parallel to a direction of the center axis while forming an obtuse angle with each other in a plane that is perpendicular to said center axis, said coupling means of the turning insert mechanically engaging a complementary coupling means that forms the insert seat of the basic body;
- wherein one of the two coupling means comprises three equiangularly spaced-apart engagement members extending radially from the center axis;
- and said other of the two coupling means comprises at least two engagement members extending radially from the center axis and forming a same angle as two of the three engagement members of said one of the coupling means, wherein pairs of flanks of each individual engagement member form an obtuse angle with each other in a plane that is perpendicular to said center axis.
2 more elements
Dependencies are inferred from the claim text.