Time：2025-07-17
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On the shop floor, electric screwdrivers are indispensable tools. Over time, however, a common headache emerges: the torque value shown on the screwdriver no longer matches the true torque measured by a tester. This mismatch can degrade product quality and slow production. The key to solving it is proper calibration.
Over-torque: risks damaging fasteners or components.
Under-torque: risks loosening in service and safety failures.
Danikor smart screwdrivers allow users to set a calibration interval (e.g., after every 5,000 cycles). When the preset count is reached, the tool reminds you to recalibrate, keeping production stable and quality consistent.
Tool: Dynamic torque tester.
Target: Customer’s specified torque value.
Mode: Match the screwdriver’s torque control mode (torque-only, torque + angle, etc.).
Record 25 pairs of readings:
– Screwdriver display value.
– Tester actual value.
Compute the torque drift (average deviation).
Derive a new K-factor (correction coefficient).
Run another 25 cycles with the new K-factor.
Confirm that display and actual values align within tolerance.
Only proceed to production after validation passes.
Accuracy: display and actual torque match.
Yield: fewer rejects from over- or under-tightening.
Efficiency: reduced manual checks and rework.
Daily: wipe dust, inspect cables and connectors.
Weekly: quick torque spot-check on a tester.
As-needed: recalibrate if any drift, vibration, or impact is noticed.
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