Joint structure

专利名称：Joint structure发明人：HAWLEY; LEE E.申请号：US52865474申请日：19741202公开号：US3916596A公开日：19751104

摘要：Each one of a series of die parts is secured to and located within a preciseposition on a common die shoe by means of two joint structures. In each joint structure, asleeve of a fixed length and diameter is telescoped with a slip fit into a longer openingextending through the die part and into the die shoe to precisely locate the die part onthe shoe with respect to the other die parts and with respect to the shoe. The insidediameter of the sleeve is larger in diameter than the diameter of a screw which extendsthrough the sleeve and is threaded into a hole in the die shoe to secure the part on theshoe regardless of whether the axis of the screw coincides precisely with the axis of thesleeve. When mounting the die part on the die shoe, the part first is clamped on the dieshoe in an initially accurate position with a bore defining the portion of the opening in thedie part serving to locate the position of the hole to be drilled and tapped in the dieshoe. Once the hole is drilled and tapped in the die shoe, the screw is telescoped throughthe bore and threaded into the hole with an adapter captivated between the head of thescrew and a shoulder in the bore to temporarily fasten the die part on the die shoe whenthe screw is tightened down. After all of the die parts are fastened temporarily to the dieshoe in a similar manner, the accuracy of the initial positioning of the parts is checked andthe parts are machined as required to be shifted into their precise positions with respect

to each other and with respect to the die shoe. To complete each joint structure afterclamping the part in its precise position on the shoe, the screw and adapter are removedand a second bore is machined in the die shoe utilizing the first bore as a guide to formthe other portion of the opening regardless of whether the axis of the completedopening coincides with the axis of the hole. Then, the sleeve is telescoped into theopening to hold the part against moving horizontally out of its precisely located positionand the screw is inserted through the sleeve and threaded into the hole to hold the parton the die shoe.

申请人：HANLEY; RONALD

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