Through the example of making the fixing plate for vehicle number plate, the author introduces the working principle, feature, design key points and efficiency of progressive die press process and combination di

An inverse cam mechanism has been used to successfully solve the problem of discharging the scraps from the multi-position stamping die for the needles for sewing machines.

Taking linear movement of punching machine as drive,the linear and rotating movement of parts are realized,a pair of vertical rotating continuous punching die is designed.

The punching process and layout method of small-size board bending parts by continuous punching forming of multi-position, especially the layout of two rows and multi-rows continuous punching and the punching process as well as the typical punching structure are introduced respectively.