What is an electric screwdriver? Electric screwdrivers are suitable for sturdy or detachable screw connections in industries such as mechanical assembly and construction. A single-phase series screwdriver consists of a single-phase series motor, a gear reducer, a clutch device, a screwdriver head and protective sleeve, a forward and reverse power switch, and a power connection device.
The electric screwdriver clutch device consists of a toothed clutch, a pressure spring, an adjusting nut, and a spindle for clamping the screwdriver head. The rotational motion of the screwdriver head is driven by an electric motor through a secondary gear reduction to rotate the hollow shaft. The front end of the hollow shaft is the active component of the tooth embedded clutch. After the motor starts, the hollow shaft rotates without load, and the screwdriver head remains stationary.
What is an electric screwdriver
When the screwdriver head is subjected to axial pressure, the hollow shaft spring compresses, causing the teeth on the end face of the clutch follower to mesh with the teeth on the front end of the hollow shaft clutch active part, thereby connecting the steel ball of the tooth embedded clutch with the screwdriver head. The screwdriver head also rotates together to tighten or disassemble the screw. After the engagement of the toothed clutch, torque is transmitted by the three steel balls in the middle.
When working, if the required torque is reached or the torque is too high, the driven part of the toothed clutch compresses the spring, causing it to slip away from the active and driven parts of the toothed clutch to prevent damage to the threads and overload of the motor. Adjusting the nut is used to adjust the output torque of the screwdriver head. By working the spring, adjust the clamping force of the driven part of the tooth embedded clutch to ensure smooth separation of the tooth embedded clutch under a certain torque.
The magnitude of torque can be achieved by turning the adjusting nut. If the adjusting nut rotates in the direction of the toothed clutch, the spring compresses and transmits a large torque; If the adjusting nut rotates in the opposite direction of the toothed clutch, the spring will have less force and transmit less torque. The tightening torque of the screw can be adjusted according to the above method to ensure a stable clamping force between the screw and the workpiece, thereby ensuring the assembly quality of the screw and the workpiece.
What is an electric screwdriver? Through the above introduction, I believe you have gained some understanding of this.
