Automatic rivet pulling mechanism

Abstract

The invention discloses an automatic rivet pulling mechanism comprising a rivet pulling gun. The rivet pulling gun comprises a gun body with a hollow cavity, and a rivet pulling piston, a sleeve, a sleeve piston, a thimble, a chuck and a seal end which are installed in the cavity. The automatic rivet pulling mechanism is characterized in that an automatic waste rivet discharging mechanism is arranged on the gun body, and comprises a spring piece, a rivet outlet channel, a rivet outlet pipe and compression air for driving the waste rivet to move, the rivet outlet channel is communicated with the rivet outlet pipe, a waste rivet discharging chute is arranged on the sleeve, one end of the spring piece is fixed, and the other end of the spring piece is free and extends into the sleeve by the waste rivet discharging chute, when the spring piece is in natural state, the spring tilts from front to back so as to form a return channel by which a waste rivet enters the rivet outlet channel. According to the automatic rivet pulling mechanism, full-automatic feeding, broken pulling and waste discharging are realized, the problem that manual and semi-automatic rivet pulling are low in efficiency is solved, and the automatic rivet pulling mechanism can be fixed on a mechanical hand so as to realize automatic production.

Description

technical field [0001] The invention relates to the technical field of rivet riveting equipment, in particular to an automatic rivet pulling mechanism. Background technique [0002] Riveting is a commonly used connection method in mechanical connection. Blind rivets are the most widely used standard form rivets, which have many specifications and reliable connections. At present, the blind rivet tools that have been widely used are divided into two categories: manual rivet guns and semi-automatic pneumatic rivet guns. These two types of tools use the lever labor-saving mechanism and compressed air to provide the pulling force to break the rivet, so that pulling the rivet is relatively labor-saving. However, these two tools all require workers to manually insert the core of the rivet into the counter mouth, then perform the riveting action, and finally manually remove the waste nails, which does not realize automatic production. In high-density riveting work, it is ineffic...

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