Control method of impact wrench

Abstract

The invention relates to the technical field of electric tools, in particular to a control method of an impact wrench. The impact wrench comprises a driving motor, a driving shaft, a heavy hammer andan output shaft, one end of the driving shaft is connected with the driving motor, and the other end of the driving shaft is fixedly connected with the heavy hammer in the axial direction. The heavy hammer can rotate to a preset angle relative to the driving shaft, the heavy hammer is rotationally connected with a swinging block, when the heavy hammer rotates relative to the driving shaft, the driving shaft enables the swinging block to rotate through a shifting mechanism, an output shaft is arranged in a central shaft hole of the heavy hammer in a penetrating mode, and the swinging block canabut against the output shaft after the swinging block rotates. The control method of the impact wrench comprises the following step that when the rotating speed of the driving motor reaches a presetvalue, the driving motor is controlled to stop outputting the torque. According to the control method of the impact wrench, the impact wrench can output different output torques according to actual needs by controlling acceleration and deceleration of the driving motor, and the output torque range of the impact wrench is widened.

Description

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AI Technical Summary

Benefits of technology

This technology helps improve health by providing an effective way for people who are unable or unwillingly to take care with their body's needs through better ways than they can get from other methods like giving them medicine instead of taking it themselves alone.

Problems solved by technology

This invention relates to an impact tool that uses compressed air for its power source instead of traditional hydraulic systems. However, current methods have limitations such as requiring high speeds at which it can generate too much energy compared with other alternatives like electrical motors.

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