Punching die for parts with protrusion

• Main Author: QIHONG TANG
• Format: Patent
• Language: English
• Published: 08.11.2006
• 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 relates to a punching die for pressing parts with protrusions, which relates to the punching die, particularly the punching die for pressing parts with protrusions. The manufacturability of pressing protrusions of the punching parts can be visibly enhanced, the parts with protrusions which are difficult to form can be favourably manufactured and the adjusting and maintenance of the mould are reduced by the provided punching die for pressing parts with protrusions. A lower mould holder is positioned at the bottom of the mould, a lower shim plate and a concave mould plate are arranged on the lower mould holder, and a lower mould is formed by the lower mould holder, the lower pad plate and the concave pad plate. An upper mould holder is arranged on the mould, an upper shim plate and a fixing plate are arranged below the upper mould holder, and an upper mould is formed by the upper mould holder, the upper pad plate and the fixing plate. A discharge spring is arranged on the upper mould holder, and a discharge plate is positioned in the middle of the mould, and the discharge plate part, the upper mould part and the lower mould part are positioned and connected by a guide column and a guide sleeve. A punching needle is fixed in the fixing plate, and penetrates through the discharge plate and is connected with the punching parts. An ejector pad, an ejector rod and a mould insert with punching protrusions are arranged in the concave mould plate, the ejector pad is positioned below the mould insert with punching protrusions and the ejector rod is positioned between the ejector pad and the mould insert with punching protrusions. A transmission rod is arranged in the lower shim plate and is in contact with the ejector pad, and the spring is arranged below the transmission rod and is installed in the lower mould holder.