Several typical structures of continuous mode

Progressive dies are a type of stamping die characterized by multiple stations and high efficiency. Accurate positioning is crucial to ensuring the quality of stamped parts. Today, we'll introduce several typical structures based on their positioning requirements.

1. Positioning with Guide Pins

For products positioned with guide pins, the distance between the punching punch and the blanking punch is called the feed pitch. During operation, the initial position is defined by the initial stop pin, punching the first two holes. After completion, the spring of the initial stop pin returns to its original position. The strip is fed in one pitch, roughly positioned by the fixed stop pin. During blanking, accurate positioning is required based on the guide pin. Simultaneously, two holes are punched at the punching station until the entire strip is completely punched.

The guide pin and blanking punch in the die should be properly matched, and the connection should ensure easy assembly and disassembly later. The shape of the guide pin's head should facilitate insertion into the punched holes during alignment.

2. Guide Pin Positioning for Blanking and Punching

This positioning method is commonly used for thicker sheet metal and blanking parts with lower precision. During processing, it requires a guide plate and punch clearance for guidance. However, for ease of replication, automatic stop positioning can be used to make the strip feed direction more accurate.

3. Side Cutting Edge Positioning

In progressive dies with side cutting edge positioning, the feed pitch and the length of the side cutting edge cross-section must be the same to ensure the correct position of the hole and the outer shape.

These are three typical structures of progressive dies. Regardless of the structure used, operation should strictly follow the process requirements.