Clamping device for a machine tool
OwnerVincent P. Marroncelliinventor
Life of this patent
Estimating the term…
Abstract
A clamping device for a machine tool that is securable to a work table of the machine tool. The machine tool typically has a work table and a saddle. The worktable is slidably mounted to the saddle. An elongated table screw is carried by the work table and extends through threaded block carried by the other saddle. A pair of jaws of the clamping device each have an acurate surface for engaging the elongated table screw. A mechanism moves the jaws relative to each other and into a closed position engaging and retaining the elongated table screw.
Claims31
A clamping device for a machine tool, the machine tool having a work table unit and a saddle unit, the work table slidably mounted to the saddle, an elongated screw carried by one of the units and a threaded block carried by the other unit and threadably receives the elongated screw, the clamping device comprising:
- a frame secured to one of the units;
- a pair of jaws, the jaws each having an arcuate surface for engaging the elongated table screw;
- and
- a clamping mechanism for moving the jaws relative to each other and engaging the elongated table screw.
A machine tool comprising:
- a base unit;
- a knee unit that is carried by the base unit and movable in a vertical direction relative to the base unit;
- a saddle unit, the saddle unit carried by the knee unit and movable in a transverse direction relative to the base unit and knee unit;
- a work table unit, the work table unit slidably mounted to the saddle;
- an elongated screw carried by the work table unit;
- a threaded block secured to the saddle unit, the elongated screw threadably received by the threaded block and rotated to move the work table in a longitudinal direction relative to the saddle unit;
- a clamping device having a housing carried by the work table unit, a pair of jaws, each of the jaws having an arcuate surface for engaging the elongated screw, one of the jaws secured to the housing and the carried by the other unit and a threadably receiving the elongated screw, the clamping device including a housing secured to one of the units;
- a pair of jaws, the jaws each having an arcuate surface for engaging the elongated screw;
- and
- a mechanism for moving the jaws relative to each other.
A clamping device for a machine tool having a supporting structure, a work table slidably mounted on the supporting structure and an elongated screw having external helical threads and operably connected to the supporting structure and table for enabling the table to move relative to the supporting structure and longitudinally of the central longitudinal axis of the screw, the locking device comprising:
- (a) a base;
- (b) a first clamping jaw slidably mounted on the base, the first clamping jaw having a first arcuate surface;
- (c) a second clamping jaw slidably mounted on the base for movement toward and away from the first clamping jaw, the second clamping jaw having a second arcuate surface;
- (d) a linkage mechanism operably connected to the base and the first and second clamping jaws so that the first and second clamping jaws move toward one another when one of the first and second clamping jaws is moved toward the other of the first and second clamping jaws and the first and second clamping jaws move away from one another when one of the first and a second clamping jaws is moved away from the other of the first and second clamping jaws;
- (e) an attachment mechanism for connecting the base to the work table in a fixed position relative to the work table so that screw is between the first and second clamping jaws and spaced from the arcuate surfaces of the first and second clamping jaws;
- and
- (f) an actuator mounted on the base for moving the first clamping jaw toward the second clamping jaw, so that when the first clamping jaw is moved by the actuator toward the second clamping jaw, the second clamping jaw is moved toward the first clamping jaw and the first and second clamping jaws are effective to clamp the screw and to prevent the screw from rotating about its longitudinal axis.
A machine tool comprising:
- (a) a supporting structure;
- (b) a work table slidably mounted on the supporting structure;
- (c) an elongated screw having external helical threads and operably connected to the supporting structure and table for enabling the table to move relative to the supporting structure and longitudinally of the central longitudinal axis of the screw;
- and
- (d) a clamping device comprising:
- (1) a base;
- (2) a first clamping jaw slidably mounted on the base, the first clamping jaw having a first arcuate surface;
- (3) a second clamping jaw slidably mounted on the base for movement toward and away from the first clamping jaw;
- the second clamping jaw having a second arcuate surface;
- (4) a linkage mechanism operably connected to the base and the first and second clamping jaws so that the first and second clamping jaws move toward one another when one of the first and second clamping jaws is moved toward the other of the first and second clamping jaws and the first and second clamping jaws move away from one another when one of the first and a second clamping jaws is moved away from the other of the first and second clamping jaws;
- (5) an attachment mechanism for connecting the base to the work table in a fixed position relative to work table so that screw is between the first and second clamping jaws and spaced from the arcuate surfaces of the first and second clamping jaws;
- and
- (6) an actuator mounted on the base for moving the first clamping jaw toward the second clamping jaw, so that when the first clamping jaw is moved by the actuator toward the second clamping jaw, the second clamping jaw is moved toward the first clamping jaw and the first and second clamping jaws are effective to clamp the screw and to prevent the screw from rotating about its longitudinal axis.
Dependencies are inferred from the claim text.