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[CN 201911070787.8] Special hydraulic press for expansion and pressure forming of automobile axle housing and its press forming method


[CN 201911070787.8] Special Hydraulic Press for Bulging Forming of Automobile Axle Housing and Its Press Forming Method Title: Special Hydraulic Press for Bulging Forming of Automobile Axle Housing and Its Press Forming Method Application Number: CN 201911070787.8 Applicant: Qinhuangdao Tongqiao Technology Co., Ltd. Application Date: 2019-11-5 Patent Type: Invention Application The present invention discloses a special hydraulic press for bulging forming of automobile axle housing and its press forming method. The hydraulic machine body is a closed frame composed of an upper beam, a lower beam, four uprights I, II, III, IV, four vertical tie rods I, II, III, IV, and four tie rods I, II, III, and IV, Used to balance the deformation force of up to 3000T in the vertical and horizontal directions during the pressing and forming process. In the press forming process of the present invention, the main hydraulic cylinder drives the upper mold to press down the middle of the tube blank, and by accurately controlling the downward speed of the small left and right vertical hydraulic cylinders, the left indenter and the right indenter are controlled to drive the tube The blank ends move downward to ensure that the left and right ends and the middle of the tube blank are not bent during the press forming process. The invention can provide a deformation force of up to 3000T, can meet the needs of the production of large-scale automobile axle housing integrated forming, and the structure is optimized, the equipment manufacturing cost is low.