Torque wrench dynamic intelligent distributed calibration system and method

Abstract

The invention discloses a torque wrench dynamic intelligent distributed calibration system and method. The system comprises a plurality of calibration subsystems which are arranged in a distributed way, wherein each calibration subsystem at least comprises a torque acquisition unit for acquiring moment signals of wrenches; the moment signals are converted into analog voltage signals, and the analog voltage signals are transmitted to a signal processing unit; the signal processing unit is used for amplifying the analog voltage signals, converting the amplified analog voltage signals into digital voltage signals, and transmitting the digital voltage signals to a processor; the processor is used for calibrating the sensitivities of the torque wrenches according to a standard determined by the moment acquisition unit, acquiring a real-time moment through a Newton's difference algorithm according to the calibrated sensitivities and the acquired digital voltage signals, accumulating and comparing moment values within set time, outputting peak values, outputting a real-time curve at the same time, and recording each sample moment peak value; extracting torque data and a calibration result of each calibration subsystem by an upper computer, and performing corresponding marking actions. By adopting the torque wrench dynamic intelligent distributed calibration system and method, the torque wrenches can be calibration dynamically.

Description

technical field [0001] The invention relates to a dynamic intelligent distributed verification system and method for a torque wrench. Background technique [0002] Torque wrench, also known as torque wrench, torque wrench, torque adjustable wrench, is a kind of wrench. According to the power source, it can be divided into: electric torque wrench, pneumatic torque wrench, hydraulic torque wrench and manual torque wrench; Stability of product quality. However, long-term use will increase the error of the wrench. At this time, it needs to be checked and adjusted. At the same time, the torque wrench also needs to be tested and calibrated before leaving the factory to ensure its accuracy. [0003] The types of devices used to test torque wrenches in the prior art are relatively single, mostly static torque test, the output of the result is single, and the output force value of the torque wrench cannot be monitored in real time. At the same time, the static test after the screw ...

AI Technical Summary

Problems solved by technology

[0003] The types of devices used to test torque wrenches in the prior art are relatively single, mostly static torque test, the output of the result is single, and the output force value of the torque wrench cannot be monitored in real time. At the same time, the static test after the screw is fixed may affect the tightened screw. Cause unpredictable impact; secondly, the existing dynamic torque verification mostly uses controllers such as PLC, which has slow processing speed, low sampling frequency and poor user interaction

Furthermore, the existing equipment is bulky, heavy and poor in mobility

[0004] In summary, the devices for verifying torque wrenches in the prior art have the problems of single output results, slow processing speed, low sampling frequency, and poor user interaction

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