The Pressfit machine works by pressing a component (usually a shaft or pin) into a hole slightly smaller in size, creating an interference fit between the two surfaces.
The pressing force can be provided by:
- Pneumatic system: Uses air pressure to generate stable force, suitable for applications requiring moderate force.
- Hydraulic system: Uses fluid to transmit force, providing higher pressing force, ideal for larger parts or harder materials.
- Electric servo system: Uses a servo motor to precisely control pressing force, ideal for complex assemblies requiring tight control.
Some modern Pressfit machines also integrate force and stroke sensors to monitor and control the assembly process, ensuring joint quality.
Applications of Pressfit machines include:
- Automotive industry: Assembly of shafts, gears, bearings, and other mechanical parts.
- Electronics industry: Assembly of electronic components, PCBs, and non-soldered connections.
- Aerospace industry: Assembly of parts requiring high precision and durability.
- Home appliance manufacturing: Assembly of components in washing machines, refrigerators, and other electrical appliances.
- Machinery manufacturing: Assembly of machine parts, shafts, and other mechanical components.