Clamp device
AssigneePascal Engineering Corporation
InventorTakayuki Kawakami
Life of this patent
Estimating the term…
Abstract
A clamp device grips and fixes the inner circumferential surface of a hole in a workpiece while ensuring a support function of supporting an engagement assembly for gripping and also is capable of eliminating at least a portion of the support force after gripping.
Claims8
A clamp device comprising a clamp main body, an engagement assembly that can be changed over between a diameter-expanded state in which it engages with an inner circumferential surface of an aperture in a workpiece and a diameter-reduced state in which it does not so engage, a clamp rod that is engaged with an interior of the engagement assembly, and a drive means for driving the clamp rod to and fro with respect to the clamp main body,
- a support mechanism that, when said engagement assembly is expanded in diameter and is engaged with said inner circumferential surface, supports the engagement assembly with a pneumatic force of pressurized air at a first pressure;
- and
- a pneumatic force release means that, when the clamp rod is driven for clamping by said drive means, releases at least a part of the pneumatic force of said support mechanism after said engagement assembly has been expanded in diameter.
Dependencies are inferred from the claim text.