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[CN 201910090073.7] screw sleeve fastening device and method for mechanical press
[CN 201910090073.7] A Mechanical Press Screw Sleeve Fastening Device and Method Title: A Mechanical Press Screw Sleeve Fastening Device and Method Application Number: CN 201910090073.7 Applicant: Rongcheng East China Forging Machine Tool Co., Ltd.; Huang Guoyan; Li Lifeng Application Date: 2019-1-30 Patent Type: Invention Application for a Mechanical Press Screw Sleeve Fastening Device and Method, it comprises several threaded connecting rods arranged on the end surface of the flange of the screw sleeve and arranged circumferentially along the central axis of the screw sleeve, and nuts respectively penetrating the shaft of the threaded connecting rod, the threaded connecting rod is provided with a heating channel inside, the threaded connecting rod passes through the threaded holes in the screw sleeve and the guide post to connect them, and the flange of the screw sleeve is provided with a stretching structure for stretching the threaded connecting rod, the threaded hole in the screw sleeve is provided with a plurality of circumferentially symmetrical keyways, a locking key plate matched with the keyways is provided between the threaded connecting rod and the screw sleeve, and a fan-shaped locking pressing block is arranged in the threaded hole of the guide post. By heating and stretching the threaded connecting rod and matching the locking key plate to lock the nut and using the fan-shaped locking pressure block to lock the root of the double-ended stud, the pre-tightening force between the threaded connecting rod and the screw sleeve and the guide post is increased. The locking key plate connects and locks the screw sleeve and the nut, which enhances the fastening effect.
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