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US 8,984,995 B2Granted
Device for the fast exchange of nuts in a lathe plate
AssigneeSystec Metalurgica Ltda.
InventorRicardo Levi D'Ancona
Life of this patent
Estimating the term…
Abstract
A mechanical device for the fast exchange of jaws in a lathe plate providing an intermediate jaw support attached to the jaw holder with a straight support face and providing with a guide wherein the jaw is positioned and fixed precisely and eliminating the clearances found in the conventional method.
Claims12
A device for the fast exchange of jaws in a plate of lathe, comprising:
- (A) a jaw holder (3) having a longitudinal central channel (6) on an upper side;
- (B) a T retainer (5) having a straight grooved hole (51) and a slanted grooved hole (51′);
- the retainer constructed and arranged to be slidebly placed in the longitudinal central channel (6);
- (C) a jaw support (1) having lateral guides (14) on an upper surface;
- having a protuberance (13) on one end, the protuberance including a internal support face (16);
- the jaw support having a straight hole (12) axially aligned with the straight grooved hole (51) of the T retainer (5), and a slanted hole (12′) axially aligned with the slanted grooved hole (51′) of the T retainer (5);
- and having a longitudinal central channel (11) in a lower surface;
- the jaw support constructed and arranged to be slidebly placed on an upper surface of the T retainer (5);
- (D) a first screw (4) inserted into the straight grooved hole (51) of the T retainer (5) and the straight hole (12) of the jaw support (1) attaching the jaw support (1) and the T retainer (5) to the jaw holder (3);
- (E) a jaw (2) having a longitudinal central channel (15) on a lower surface the lower surface provided with an oblong center slit (17) internally provided with a slanted through-hole (18), and a radial housing (19) constructed and arranged to house a head of the first screw (4);
- the jaw constructed and arranged to be slidebly placed on an upper surface of the jaw support (1);
- the lower surface having an undercut (25) constructed and arranged to fit onto the internal support face (16) of the protuberance (13), and
- (F) a slanted screw (4′) inserted into the slanted through-hole (18) of the jaw (2) and into the slanted hole (12′) of the jaw support (1), and into the slanted grooved hole (51′) of the T retainer (5), attaching the jaw (2) and the jaw support (1) and the T retainer (5) to the jaw holder (3),
- wherein the slanted hole (51′) of the T retainer (5), the slanted hole (12′) of the jaw support (1) and the slanted through-hole (18) of the jaw (2) are slanted in such a way that the slanted screw (4′) is inserted at a same inclination and thus allowing to precisely position the undercut (25) of the jaw (2) onto the internal support face (16) of the protuberance (13), and
- wherein, when exchanging the jaw, the slanted screw (4′) is released and the jaw (2) in replaced.
12 more elements
Dependencies are inferred from the claim text.