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[CN 201910633146.2] Anti-lock device for eccentric core shaft of mechanical press
[CN 201910633146.2] Mechanical Press Eccentric Mandrel Anti-lock Device Title: Mechanical Press Eccentric Mandrel Anti-lock Device Application Number: CN 201910633146.2 Applicant: Rongcheng East China Forging Machine Tool Co., Ltd. Application Date: 2019-7-15 Patent Type: Invention Application Mechanical Press Eccentric Mandrel Anti-lock Device, Including: Rotating Mandrel, The rotating mandrel is fixedly connected with the eccentric body through a wedge key in the inner hole of the eccentric body, and rotates synchronously with the eccentric body, the wedge key is fixed by the shaft with a retaining ring, and one end of the rotating core shaft is provided with a shaft table; the first bearing bush, the first bearing bush is fixed in the upper beam hole by a set screw, and one end of the rotating core shaft is arranged in the first bearing hole, The first bearing bush is provided with a first rib, and the inner side of the shaft table and the outer end surface of the first rib form a first sliding friction pair; the second bearing bush, the second bearing bush, the second bearing bush, the shaft sleeve is fixed in the upper beam hole through the perforated hexagon head bolt and iron wire, which prolongs the service life of the bearing bush, improves the movement speed, accuracy and production efficiency of the mechanical press, ensures the quality of the product, and solves the problem that the eccentric core shaft of the mechanical press is moved by the axial load, which ensures the stability of the machine tool and the personal safety of the operator.
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