Machine reamer
AssigneeDihart AG
InventorsOtto Buettiker, Roman Eigenmann, Jacek Kruszynski
Life of this patent
Estimating the term…
Abstract
A machine reamer has a base and a reamer head configured as a one-piece indexable insert that axially projects beyond the front of the base. The indexable insert can be introduced in a front insert seat of the base with an axially projecting, preferably conical shoulder and can be clamped therein by a tension rod that extends through the center-axis of the base. In order to improve the rotational catch effect between the base and the indexable insert, the indexable insert has a central polygonal opening through which the tension rod engages with a complementary polygonal section.
Claims15
A machine reamer comprising a base and a reamer head that axially projects beyond a front of the base, and comprises a one-piece indexable insert for introduction into a front-side insert seat of the base, the indexable insert having an axially projecting shoulder, for clamping by a tension rod which extends axis-centrally through the base, whereby the tension rod comprises a head resting against a face of the indexable insert, wherein the tension rod has a complementary polygonal section extending through an axis-central polygonal opening of the indexable insert.
A machine reamer comprising a shaft-like base and a reamer head, which axially projects beyond a front of the base, and comprises a one-piece indexable insert for introduction into a front-side insert seat of the base, the indexable insert having an axially projecting shoulder for clamping by a tension rod, which extends axis-centrally through the base, whereby the tension rod comprises a head resting against a face of the indexable insert, wherein the head of the tension rod rests with a conical clamping surface against a complementary inner cone portion on the face of the indexable insert, wherein the base has an axis-central recess at its end not facing the insert seat, in which recess is arranged a tension nut for screwing onto a thread of the tension rod, and a snap ring for holding the tension nut in the recess.
A machine reamer comprising a shaft-like base and a reamer head, which axially projects beyond the front of the base, and comprises a one-piece indexable insert for introduction into a front-side insert seat of the base, the indexable insert with an axially projecting shoulder for clamping by a tension rod that extends axis-centrally through the base, whereby the tension rod has a head resting against a face of the indexable insert, wherein the head of the tension rod rests with a conical clamping surface against a complementary inner cone portion on a face of the indexable insert, wherein the base has an axis-central recess at its end not facing the insert seat, in which recess is arranged a tension nut, which can be screwed onto a thread of the tension rod, the tension nut comprising a head portion axially supportable on an annular boundary surface of the axis-central recess and a shaft portion extending through an axial bore of the base, whereby the shaft portion carries at its free end a female thread for screwing onto the thread of the tension rod.
Dependencies are inferred from the claim text.