Design of the multi-position progressive die for the 24 pin top shell

The technological property and the stamping technology of 24 pin top shell were analysed.Layout scheme,total structure of the mould,design of the key parts were introduced.To reach high precision,preparative sizing was carried out before bending.Varied punches were designed for the die to get high working strength and manufacturing easy.The mould structure is compact,working smoothly,operating conveniently and has high production efficiency.