Portable double-coil electromagnetic riveting device

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.

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...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to address the above deficiencies and provide a portable double-coil electromagnetic riveting device to solve the loss of electromagnetic energy, the limited energy generated by a single coil, and the difficulty in forming large-diameter rivets under the condition of limited size. Problems, problems with insufficient working strokes, problems with the shock absorption system not being able to quickly consume recoil energy

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