Quick die change clamp
OwnerStephen F. Shanleyinventor
Life of this patent
Estimating the term…
Abstract
A quick die change clamp secures a workpiece to a work surface equipped with a T-slot. The quick die change clamp includes a fastener having a threaded end and a head at an end opposite the threaded end for slidable movement in a T-slot of a work surface. The quick change clamp also includes a clamp bar adapted to engage and disengage a workpiece and a rotatable flange stem nut attached to the clamp bar for moving the clamp bar along the threaded end.
Claims24
A quick die change clamp for securing a workpiece to a work surface equipped with a T-slot, said quick die change clamp comprising:
- a fastener having a longitudinal axis, said fastener having a threaded end and a head at an end opposite said threaded end for slidable movement in a T-slot of a work surface;
- a clamp bar for engaging and disengaging a workpiece;
- rotatable means attached to said clamp bar for moving said clamp bar along said threaded end;
- and
- pivotal means disposed between said rotatable means and said clamp bar and rotatable about a second axis substantially parallel the longitudinal axis of said fastener for engaging said rotatable means when said rotatable means is rotated to develop a clamping force on the workpiece and for resisting said rotatable means from rotating about said fastener after the clamping force has been developed on the workpiece.
A quick die change clamp for securing a workpiece to a work surface equipped with a T-slot, said quick die change clamp comprising:
- a fastener having a threaded end and a heat at an end opposite said threaded end for slidable movement in a T-slot of a work surface;
- a clamp bar for engaging and disengaging a workpiece;
- rotatable means attached to said clamp bar for moving said clamp bar along said threaded end;
- and
- means between said clamp bar and said fastener for preventing said clamp bar from disengaging said fastener and for preventing said clamp bar from rotating about said fastener.
A quick die change clamp for securing a workpiece to a work surface equipped with a T-slot, said quick die change clamp comprising:
- a fastener having a threaded end and a heat at an end opposite said threaded end for slidable movement in a T-slot of a work surface;
- a clamp bar for engaging and disengaging a workpiece;
- rotatable means attached to said clamp bar for moving said clamp bar along said threaded end;
- pivotal means disposed between said rotatable means and said clamp bar and rotatable for engaging said rotatable means when said rotatable means is rotated to develop a clamping force on the workpiece and for resisting said rotatable means for rotating about said fastener after the clamping force has been developed on the workpiece;
- and
- means between said clamp bar and said fastener for preventing said clamp bar from disengaging said fastener and for preventing said clamp bar from rotating about said fastener.
A quick die change clamp for securing a workpiece to a work surface equipped with a T-slot, said quick die change clamp comprising:
- a fastener having a threaded end, a head for slidable movement in a T-slot of a work surface, two guide flats along said threads between a free end of said threaded end and said head, said guide flats being substantially parallel to each other;
- a clamp bar for engaging and disengaging a workpiece;
- rotatable means attached to said clamp bar for moving said clamp bar along said threaded end;
- guide bars attached to said clamp bar and having a planar edge such that one planar edge of one guide bar abuts one of said guide flats to prevent said clamp bar from rotating around said fastener and to prevent said clamp bar from exiting said fastener.
A quick die change clamp for securing a workpiece to a work surface equipped with a T-slot, said quick die change clamp comprising:
- a fastener having a threaded end and a head at an end opposite said threaded end for slidable movement in a T-slot of a work surface;
- a clamp bar for engaging and disengaging a workpiece;
- rotatable means attached to said clamp bar for moving said clamp bar along said threaded end;
- a retainer plate disposed between said rotatable means and said clamp bar, said retainer pate including a protrusion disposed in a corresponding recess of said clamp bar to allow pivotal movement of said retainer plate for engaging said rotatable means when said rotatable means is rotated to develop a clamping force on the workpiece and for resisting said rotatable means from rotating about said fastener after the clamping force has been developed on the workpiece.
Dependencies are inferred from the claim text.