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[CN 202110564974.2] Anti-loosening Device and Method for Adjusting Mold Height of Top Material in Hot Touch Forging Machinery


[CN 202110564974.2] Anti-loosening Device and Method for Adjusting Mold Height of Top Material in Hot Touch Forging Machinery Title: Anti-loosening Device and Method for Adjusting Mold Height of Top Material in Hot Touch Forging Machinery Application Number: CN 202110564974.2 Applicant: Rongcheng East China Forging Machine Tool Co., Ltd. Application Date: 2021-5-24 Patent Type: Invention Application The present invention relates to high-end equipment manufacturing industry, it specifically relates to an anti-loosening device and method for adjusting the height of the lower jacking die of hot forging machinery. The anti-loosening device for adjusting the height of the lower jacking die of hot forging machinery comprises an upper nut pull rod, a lower nut pull rod and an adjusting screw. The adjusting screw rod connects the upper nut pull rod and the lower nut pull rod. The upper nut pull rod and the lower nut pull rod are designed with special-shaped pre-tightening nuts, and axial and radial opening grooves respectively, the pre-tightening protrusion compresses the open groove to generate elastic deformation and continuous pre-tightening. The invention makes full use of the metal elastic deformation theory, and the above structure realizes the pre-tightening of the mutual cooperation between the axial direction and the radial direction of the threaded connection, which well solves the key technical problem that the locking nut structure for adjustment between the upper pull rod and the lower pull rod is easy to loosen under the action of the heavy load impact force of the mechanical jacking technology of the mechanical press, and significantly improves the anti-loosening effect of the threaded connection, improve the reliability and stability of the mechanical top material device.