Smart Electric ScrewdriverIt can simultaneously record the torque and angle of tightening. Although in most cases we control the tightening results based on torque as the target value, we can also utilize this function of the electric screwdriver to monitor the angle through which the bolt turns when achieving the target torque. In mass production, fasteners and connecting parts are highly consistent components, and the monitoring angle for tightening parts with abnormal conditions may deviate significantly from the data of normal parts. Today, let's take a look at the error-proofing mode of the smart electric screwdriver.

(1) Prevent Repeated Tightening

For workstations that require tightening multiple bolts, there may be instances of mistakenly re-tightening bolts that have already been tightened. Angle monitoring can prevent this error from occurring. When re-tightening a bolt that has already been tightened, since the bolt has reached the target torque, if torque is applied again for re-tightening, the angle value may even be far less than the normal monitoring angle limit.

(2) Prevent Incorrect Bolt Installation

For errors related to incorrect bolt installation, angle monitoring methods can also capture these situations. To capture incorrect bolt installation through angle monitoring, it is necessary to analyze the differences in thread length, thereby understanding the differences in the required turning angle during tightening. By controlling this difference outside the limits of the monitoring angle, we can prevent the mixing of different bolts. Under the same target torque for tightening, if the wrong bolt is used, the monitoring angle for tightening will be outside the monitoring range of the correct bolt's tightening angle, at which point the tightening gun will issue an alarm.

(3) Tightening Curve Error-Proofing Method

For fasteners with sealing rings or soft gaskets, we can use the tightening curve error-proofing method to prevent operators from forgetting to install these seals. This method uses the tightening curve of the fastener to determine whether the seals have been forgotten. Throughout the tightening process of the fastener, the tightening torque increases from zero to the target torque, and by monitoring and recording the entire process through the tightening program, we can collect the torque variation curve during the tightening process.

As the application of the smart electric screwdriver in actual production becomes more widespread, the role of the error-proofing function of electric tightening tools is also becoming increasingly important. During product assembly, appropriate error-proofing methods can be selected based on actual conditions to maximize the prevention of operators making mistakes that could lead to non-compliant products being delivered to customers, ensuring the quality of the assembly.