An electric screwdriver that adjusts torque based on capacitance changes

Abstract

An electric screwdriver for adjusting torque based on capacitance changes, which relates to the technical field of daily necessities, including a rotating shaft, the inner wall of the rotating shaft is movably connected with a slider, the inner wall on the right side of the slider is fixedly connected with a positive plate, and the left side of the slider is The inner wall of the slider is fixedly connected with the negative plate fixed to the left side of the positive plate, the right side of the slider is movably connected with a press block, the inner wall of the top right side of the slider is movably connected with a conductive block, and the middle part of the block is fixedly connected with a magnetic block one. The electric screwdriver that adjusts the torque based on the change of capacitance is used through the cooperation of the positioning block and the positioning slot. After the force is applied, the positioning block will be squeezed into the rotating rod by the rotating shaft. At this time, the rotating shaft and the rotating rod are no longer relatively fixed, so as to ensure the stable tightening of the screw and avoid overloading of the electric screwdriver, effectively prolonging the service life of the electric screwdriver.

Description

Technical field [0001] The present invention relates to the field of daily necessities, in particular, a motor-based electric screwdriver that modulates the torque force based on capacitive changes. Background technique [0002] Electric screwdriver, alleged electric batch, electric start, is a power tool for tightening and spinning screws, the electric tool is equipped with mechanisms for adjusting and limiting torque, mainly for assembly lines, is a must-have tool for most producers 1. Since the screws often use in daily life, the electric screwdriver has become one of the daily necessities, which is convenient for everyday life. [0003] The current electric screwdriver can only implement screws and screw, but cannot meet the screws to stop screwing in a suitable torque force, causing the electric screwdriver to be tightened in the screw, but the screw cannot be rotated At this time, the electric screwdriver causes the electric screwdriver to shorten the service life of the el...

AI Technical Summary

Problems solved by technology

[0003] The current electric screwdriver can only screw on and off the screw, but it cannot stop the screw at an appropriate torque. As a result, the electric screwdriver is often still working after the screw is tightened, but the screw cannot be rotated. , At this time, the electric screwdriver will be in an overload working state, shortening the service life of the electric screwdriver, but if you stop turning the screw too early, it will cause the screw to loose easily and reduce the fixing effect of the screw, so there is no specific judgment standard. Difficult to operate

Images