The role of pins

The main functions of pins include positioning, connection, relaxation, and overload shear connection in safety devices. These functions make pins widely used in machinery and other fields:

Positioning function: Pins are often used for assembly positioning to ensure the accurate position of parts in space. For example, in a mold, pins can help two adjacent parts to be accurately positioned. 
Connection function: Pins can also be used as connectors to connect multiple parts together to enhance the integrity of the structure. 
Relaxation function: In some cases, pins are used to relax mechanical parts to prevent them from loosening due to vibration or other external forces. 
Safety device: In a safety device, a pin can be used as an overload shear connection. When subjected to excessive force, the pin will break, thereby protecting other parts from damage.
In addition, there are many types of pins, including cylindrical pins, conical pins, pins with holes, cotter pins and safety pins, etc., to meet the needs of different application scenarios.