Electronic product shrapnel hot riveting is a common connection process, mainly used to firmly bond the shrapnel with the base or other components. The following is a detailed introduction to hot riveting of electronic product shrapnel:
1. Hot riveting principle
Hot riveting technology involves heating rivets or rivet columns to bring the material to a plastic state, and then shaping the rivet head into the desired fixed shape through pressure, thereby tightly fixing two or more components. In the hot riveting of electronic products, a heating device is usually used to locally heat the plastic or metal rivet column to soften or reach an appropriate plastic state, and then the riveting is completed by mechanical pressure.
2. Process characteristics
Accurate temperature and pressure control: The hot riveting machine is equipped with an intelligent temperature and pressure control system to ensure the reliability and accuracy of the riveting process.
Material adaptability: The hot riveting process is suitable for a variety of materials, including plastic and metal materials that do not contain fiberglass. For fiberglass reinforced plastics, temperature control is particularly crucial.
Appearance and strength: After riveting, the rivet points are round and full, without cracking, and both appearance and strength meet the requirements.
3. Equipment composition
Heating device: used to heat the rivet column to achieve a plastic state.
Pressure system: Mechanical pressure is applied through cylinders or electric cylinders to complete riveting.
Visual positioning system: using intelligent CCD visual recognition positioning to automatically and accurately identify the optimal welding area.
Fine tuning and buffering mechanism: Through the fine tuning table and elastic buffering components, it adapts to the height error of the workpiece and avoids damage to the workpiece.
4. Application Cases
VCM shrapnel and base hot riveting: In VCM (voice coil motor) manufacturing, the hot riveting process between the shrapnel and the base can ensure the quality of riveting and avoid optical axis eccentricity caused by uneven force.
PCBA hot riveting: In the fixation of PCB boards and components, hot riveting technology has the advantages of strong structure, high temperature resistance, and vibration resistance.