Die holder device and method for utilizing the same
AssigneeNational Oilwell Varco Norway AS
InventorsJonathan Garrick Webb, Hugo Leonardo Rosano, David Allen Hill, Trond Werner Moen
Life of this patent
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Abstract
A die holder device includes a die holder that has an axial centre line and is adapted to receive a clamp die. The die holder is included in a clamp arm or slide block. The die holder is restricted from axial movement by at least a first complete or partial conical surface and possibly by a second complete or partial conical surface that directly or indirectly bears against the clamp arm or the slide block.
Claims21
A die holder device comprising:
- a die holder having an axial centre line, the die holder configured to receive a clamp die;
- and
- a clamp arm or a slide block in which the die holder is positioned;
- wherein the die holder comprises at least one conical surface matching with and complementary fitting to a conical surface on the clamp arm or slide block, the complementary fitting conical surfaces configured to restrict the die holder from axial movement;
- wherein the at least one conical surface of the die holder is an axially extending annular surface disposed about the axial centre line;
- wherein the conical surface on the clamp arm or slide block is an axially extending annular surface disposed about the axial centre line.
A method for utilizing a die holder device, the method comprising:
- providing a die holder positioned in a clamp arm or a slide block, wherein the die holder has an axial centre line;
- and
- restricting the die holder from axial movement relative to the clamp arm or the slide block by bearing a conical surface on the die holder against a matching complementary fitting conical surface on the clamp arm or the slide block, wherein the conical surface on the die holder is an axially extending annular surface disposed about the axial centre line and the conical surface on the clamp arm or slide block is an axially extending annular surface disposed about the axial centre line.
A die holder device, the die holder device comprising:
- a clamp arm or a slide block having a through-bore with an inside first conical surface;
- a die holder having a cylindrical housing, a first end portion, a second end portion, a die holder bore extending through the second end portion, an outside first conical surface facing away from the first end portion, the cylindrical housing extending into the through-bore of the clamp arm or the slide block;
- a clamp die coupled to the die holder and positioned adjacent the first end portion;
- and
- a die actuator coupled to the die holder and positioned opposite the clamp die;
- wherein the outside first conical surface of the die holder engages the inside first conical surface of the clamp arm or the slide block.
Dependencies are inferred from the claim text.