Portable double-coil electromagnetic riveting device

An electromagnetic riveting and double-coil technology, which is applied in the field of mechanical processing, can solve the problems that the shock absorption system cannot quickly consume recoil energy, it is difficult to realize the problem of large-diameter rivet forming, and the energy of a single coil is limited, so as to improve energy utilization. Improves lifespan and reduces shock
CN104841840AInactive Publication Date: 2015-08-19FUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2015-08-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a portable double-coil electromagnetic riveting device which comprises a rear gun barrel and a front gun barrel. The front gun barrel slides relative to the rear gun barrel in a reciprocating mode through a damping system. A primary coil is fixedly connected into the front end of the front gun barrel. A sliding secondary coil is arranged at the front end of the front gun barrel in a sleeving mode and located beside the primary coil. The front end face of the primary coil is fixedly connected with a riveting die through an amplifier. The rear end face of the primary coil is fixedly connected with an intermediate spindle penetrating through the primary coil. The intermediate spindle slides relative to the rear gun barrel and the front gun barrel in a reciprocating mode through an elastic limit mechanism and a guide mechanism. The primary coil and the secondary coil are electrically connected. According to the double-coil self-excitation principle, currents with uniform wave forms are loaded to the coils at the same time, so that the riveting energy is increased, and the energy utilization rate is improved. Through a buffering spring, recoil energy is stored in the elastic potential energy of the buffering spring, and a one-way damper consumes energy to reduce vibration sense in the rebounding process.
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Description

Technical field

[0001] The invention provides a portable double-coil electromagnetic riveting device, which belongs to the technical field of mechanical processing. Background technique

[0002] Electromagnetic riveting technology is mainly used in the aerospace field. Electromagnetic riveting equipment includes electromagnetic riveting energy storage system and external electromagnetic force generating device. The principle is to store energy in a capacitor and discharge it in the primary coil to generate a magnetic field in the primary coil and the secondary coil, thereby generating repulsive force, so as to achieve the purpose of converting electrical energy into mechanical energy.

[0003] Reference Figure 13 , The document "Chinese invention patent with publication number CN101890473A" discloses a low-voltage electromagnetic riveting gun. Its power part structure includes a guide sleeve, a front cover, a punch, a nut, a compression spring, an amplifier, an air outlet, an insul...

Claims

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