CLAMPING DEVICE
First Claim
1. A clamp apparatus in which, by rotation of a pair of clamp arms, a workpiece is clamped between one clamp arm and another clamp arm, comprising:
- a body;
a drive unit disposed on the body and having a displacement member that is displaced along an axial direction;
a pair of clamp arms, which are supported rotatably with respect to the body, and are arranged in mutual confronting relation to each other;
a driving force transmission mechanism having pressing members that press ends of the clamp arms, and which is connected to the drive unit and transmits to the clamp arms a driving force along an axial direction of the drive unit, to thereby cause rotation of the clamp arms; and
cam members having pressing surfaces, which are inclined at a predetermined angle with respect to the axial direction and are disposed detachably with respect to the ends of the clamp arms, the cam members being pressed by the pressing members of the driving force transmission mechanism abutting against the pressing surfaces, and the pressing members pressing the cam members.
1 Assignment
0 Petitions
Accused Products
Abstract
A clamping device has a pair of first and second clamping arms rotatably supported with respect to a body, and a cam member having a cam surface is removably provided at one end of each of the first and second clamping arms. A pair of rollers pivotally supported by a block body constituting a drive unit are each in contact with the cam member. By a descent of the block body under the driving action of the drive unit, the cam surface of the cam member is pressed by the rollers, and the cam surface inclined in the displacement direction of the block body and recessed in a cross-sectional arc shape is pressed.
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Citations
9 Claims
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1. A clamp apparatus in which, by rotation of a pair of clamp arms, a workpiece is clamped between one clamp arm and another clamp arm, comprising:
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a body; a drive unit disposed on the body and having a displacement member that is displaced along an axial direction; a pair of clamp arms, which are supported rotatably with respect to the body, and are arranged in mutual confronting relation to each other; a driving force transmission mechanism having pressing members that press ends of the clamp arms, and which is connected to the drive unit and transmits to the clamp arms a driving force along an axial direction of the drive unit, to thereby cause rotation of the clamp arms; and cam members having pressing surfaces, which are inclined at a predetermined angle with respect to the axial direction and are disposed detachably with respect to the ends of the clamp arms, the cam members being pressed by the pressing members of the driving force transmission mechanism abutting against the pressing surfaces, and the pressing members pressing the cam members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification