Die for riveting outer diameter deformation of thin-walled pipe

• Main Authors: ZHANG JIACHENG, ZHANG LIANG, ZHU MINGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2024
• 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 invention provides a thin-walled tube riveting outer diameter deformation die and relates to the technical field of dies, the thin-walled tube riveting outer diameter deformation die comprises an upper die, a lower die and a middle die, a movable groove is formed in the upper die, the upper die is provided with two protruding female dies communicated with the movable groove, an interlayer is arranged between the lower die and the upper die, and a male die is arranged on the lower die; the male die is located in the female die, an annular groove communicated with the interlayer is formed by the outer wall of the male die and the inner wall of the female die, the middle die is installed in the movable groove in a sliding mode, a pressing column is installed on the middle die, and the space of the annular groove is reduced through extrusion of the pressing column. The thin-walled tube on an object is formed through press fit between the upper mold and the lower mold, two processes of welding and grinding of