Nut riveting device for plastic products

Abstract

The invention discloses a nut riveting device for plastic products. The nut riveting device for the plastic products comprises a device body, an output shaft and a starting switch, wherein the device body comprises a stator and a rotor. The output shaft comprises a fixed end and an expansion end. The fixed end is fixed with the rotor and is sleeved outside of one end of the expansion end. The expansion end can only slide along the fixed end. The expansion end is further provided with a returning spring. An index rotary drum, a pushing rod and a sliding claw sleeve are arranged in the fixed end. The index rotary drum is fixedly connected with the fixed end, the pushing rod is connected with the index rotary drum in a sliding manner and the sliding claw sleeve is placed at the end of the expansion end in a sleeving manner. Deep grooves and ratchet-shaped shallow grooves are arranged on the index rotary drum at intervals. A pressing strip and a sliding claw are arranged on the pushing rod and the sliding claw sleeve, and inclined surfaces which match each other are arranged on the pressing strip and the sliding claw. An electromagnet which can push the pushing rod is arranged in the fixed end. According to the nut riveting device, the expansion of the output shaft can be controlled by the electromagnet and the output shaft can not be compressed by axial force after extending.

Description

technical field [0001] The invention specifically relates to a nut riveting device for plastic products. Background technique [0002] Nut riveting devices are often used in plastic products to install them. The nut riveting device is a tool that drives the screwdriver head to rotate by a motor to automatically tighten the screws. The screwdriver head of the traditional nut riveting device is always exposed. Therefore, the screwdriver head often collides with some hard objects, so the screwdriver head will be deformed soon, causing the screwdriver head to not be used, or slipping during use, so the screwdriver head reduces the life of the screwdriver head; therefore, the output shaft of the motor If it is set as a retractable shaft, the screwdriver head can be hidden when the output shaft shrinks, so as to achieve the purpose of protecting the screwdriver head. Since when using the nut riveting device, the output shaft of the motor needs to bear the moving axial force in ad...

AI Technical Summary

Problems solved by technology

[0002] Nut riveting devices are often used in plastic products to install them. The nut riveting device is a tool that drives the screwdriver head to rotate by a motor to automatically tighten the screws. The screwdriver head of the traditional nut riveting device is always exposed. Therefore, the screwdriver head often collides with some hard objects, so the screwdriver head will be deformed soon, causing the screwdriver head to not be used, or slipping during use, so the screwdriver head reduces the life of the screwdriver head; therefore, the output shaft of the motor Set as a retractable shaft, the screwdriver head can be hidden when the output shaft shrinks, so as to achieve the purpose of protecting the screwdriver head

Since when using the nut riveting device, the output shaft of the motor needs to bear the moving axial force in addition to providing torque, so when the motor is output and only completed the elongation by air pressure or electromagnet, it is likely that the axial force is too large , so that the output shaft is compressed, resulting in the nut riveting device can not be used normally

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