An electromagnetic riveting device based on a rotary motor and a ball screw technology
An electromagnetic riveting device using rotary motors and ball screw technology softens and stamps sheet metal with poor plasticity, solving the problems of difficult joint forming and low strength, and achieving high-strength connections. It is suitable for aircraft skin and automobile body manufacturing.
Patent Information
- Application Number
- CN202410709406.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2044-06-03
AI Technical Summary
Existing electromagnetic stamping rivetless connection technology has problems such as difficulty in joint forming and low joint strength after forming on connecting plates with poor plasticity.
An electromagnetic riveting device based on rotary motor and ball screw technology is used. The coil assembly softens the joint to be joined and the electromagnetic riveting gun completes the stamping rivetless connection. The device includes a coil assembly and an electromagnetic riveting gun. The coil assembly includes a coil and a coil frame. The electromagnetic riveting gun includes a ball screw, a nut, a mover frame, a permanent magnet and a stator. The punch assembly is connected to the ball screw and the punch is driven by a rotating magnetic field to perform riveting.
Without reducing the overall strength of the sheet metal, this method reduces the yield strength of the joint area of the connecting sheet metal, improves the electromagnetic stamping rivetless connection effect of the joint, and increases the joint strength. It is suitable for rivetless connections of high-strength aluminum alloys, titanium alloys, and high-strength steel materials, and can be applied to the manufacture of aircraft skins and automobile bodies.