US 2015/0209872 A1 · ELASTIC CHUCK

Abstract

An elastic chuck includes a base plate, an elastic plate and jaws. The base plate has a through hole running between upper and lower surfaces thereof. The elastic plate has a fixing ring fixed to the base plate, a pulling block that can move along a central axis of the through hole, and holders radially extending from the pulling block toward the fixing ring. Each of the holders has a top surface facing the upper surface of the base plate across a radial gap. The jaws are mounted at top surfaces of the holders, respectively. The pulling block of the elastic plate receives a pulling force along the central axis to drive the jaws to hold a workpiece firmly. The elastic chuck has a simple structure and limited parts, so its process of manufacturing and assembling are time-saving and cost saving, and the resultant structure is highly precise.

Claims11

Dependent claims

An elastic chuck, comprising:

a base plate, having an upper surface, a lower surface, and a through hole running between the upper surface and the lower surface, a central axis defined by the through hole;
an elastic plate, being integratedly formed as a unity and having a fixing ring, a pulling block located at the center of the fixing ring, and a plurality of holders radially extending from the pulling block toward the fixing ring, the fixing ring being fixed to the base plate, the pulling block being for receiving a pulling force and movably mounted substantially along the central axis within the through hole, each said holder having a bottom surface and a top surface, the bottom surface facing the upper surface of the base plate, and a radial gap existing between the bottom surface and the upper surface;
and
a plurality of jaws, each one being mounted on the top surface of the holders respectively.

1 more element

Dependencies are inferred from the claim text.

Elastic chuck

Life of this patent

Elastic chuck

Life of this patent

Abstract

Claims11