Precise punching die

• Main Author: QIU WENDONG
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2020
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The utility model discloses an accurate punching die. The die comprises an upper die, a lower die, a back dragging plate and an upper stripping plate which are arranged at the lower end of the upper die, a first spring arranged between the upper die and the back dragging plate, an outer guide module arranged between the upper die and the lower die, an inner guide column arranged between the lowerdie and the back dragging plate as well as the upper stripping plate, a first long screw and a punch arranged at the lower end of the upper die, the back dragging plate and the upper stripping plate protrude downwards relative to the upper die under the elastic action force of the first spring, the lower end of the inner guide column penetrates through the lower end face of the upper stripping plate to extend out of the lower end face of the upper stripping plate, the lower die is provided with a through hole for the inner guide column to penetrate in, and a stroke limiting structure is arranged between the upper die