The Structure Of Metal Stamping Dies

The basic structure of metal stamping dies mainly includes the following parts:

Working parts: These parts directly perform stamping processing on blanks or sheets, including punches, dies, punch-die dies and their inserts and blocks.
Positioning parts: Used to determine the correct position of strips or blanks in the die, such as positioning pins, positioning plates, guide pins, guide plates, side blades and limit blocks.
Pressing and unloading parts: Used to press strips, blanks or push or unload waste from the die, including unloading plates, ejector blocks, ejector rods, pressure rings, pressure plates and waste cutters.
Guide parts: Ensure the correct movement of the upper die relative to the lower die or the punch relative to the die, such as guide pins, guide sleeves, guide plates and sliders.
‌Fixed parts‌: fix the punch and die on the upper and lower dies, and fix the upper and lower dies on the press to transmit the working pressure, such as upper and lower clamps, upper and lower die seats and pads, etc. ‌Fasteners and other parts‌: used to connect various parts or cooperate with other actions, such as screws, pins, springs and other parts‌. ‌Parts that transmit and change the direction of working movement‌: such as side wedges and sliders, etc. ‌Specific components and their functions ‌Upper cover plate‌: fixed on the punch press to balance the pressure of the stripping spring and have good coordination‌. ‌Upper die seat‌: place the outer guide sleeve, limit column and stripping spring, and its thickness is directly related to the length of the stripping spring‌. ‌Upper pad‌: bear the force return of the punch or insert during the stamping process to prevent the upper die seat from being dented or deformed‌. ‌Clamping plate‌: fix each punch and insert to ensure the position and accuracy of the parts‌. ‌ ‌Stripping plate‌: Fix the unloading insert and bear the concentrated stress generated by the forming insert during the production process.
‌Stripping plate‌: Place the unloading insert to ensure the accuracy of the position, and after the punch is punched and sheared, separate the punch from the stamping material through the force provided by the unloading spring.
‌Lower template‌: Place the die insert to ensure the accuracy of the position and bear the lateral force during punching and shearing.
‌Lower pad‌: Support the lower template to ensure its stability and precision.
Common hardware stamping die standardization structure and its function
‌Line pressing sub-structure‌: Used for material pre-deformation, reduce resistance during bending, and ensure accurate size.
‌Bead pressing sub-structure‌: Reduce rebound during bending and ensure accurate size.
‌Burst pressing sub-structure‌: Cut the sub-shape through wire cutting, process the burrs, and ensure that there are no burrs around the product.
‌Pre-cut structure‌: Pre-cut at the previous station to ensure that there are no burrs on the product appearance or where the hand can touch.
‌Shearing and bending structure‌: Cut first and then bend to reduce friction and ensure blade strength‌. Ejector pin design standard‌: Select appropriate ejector pin specifications and arrangement rules to ensure stripping effect and mold stability‌