Necking device for stainless steel pipe

• Main Authors: SUN NAN, SU HAI, SHI LIANG, JIANG YANGANG, LIU DA, YU CUICUI, XU BIN, YE GUIQING, LI NAN, LIU BAOGUI, MAO TAO, LIU QINGMING
• Format: Patent
• Language: Chinese; English
• Published: 17.02.2023
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The utility model discloses a stainless steel pipe necking device which aims at solving the problems that in the prior art, necking quality is low and production efficiency is low due to the fact that a necking block is manually taken and placed. The die comprises an upper die base and a lower die base, and the upper die base and the lower die base are fixed to an upper working face and a lower working face of the single-column hydraulic press correspondingly. The upper die holder is provided with an upper necking block, and the lower die holder is provided with a lower necking block; a guide column is installed on the upper die base, and a guide sleeve is installed in the lower die base. In the working process, the upper working face and the lower working face of the single-column hydraulic press move to drive the upper die base and the lower die base to operate, and the upper necking block and the lower necking block are replaced through the guide sliding effect of the guide columns and the guide sleeves; t