Torque calibrator for torque wrench

Abstract

The invention relates to a torque calibrator for a torque wrench. The problems of low working efficiency and measuring accuracy of the conventional torque calibrator are solved. The torque calibrator comprises a bottom plate, a mechanical auxiliary force adding mechanism, a measuring and executing mechanism and a data display mechanism, wherein the mechanical auxiliary force adding mechanism and the measuring and executing mechanism are arranged on the bottom plate; and the measuring and executing mechanism is connected with the data display mechanism. The torque calibrator is characterized in that a wrench push rod position adjustment unit is arranged in the mechanical auxiliary force adding mechanism. By the torque calibrator, the defects in the prior art are overcome, calibration time is effectively shortened, the measuring accuracy is enhanced, and the torque of the torque wrench is quickly calibrated.

Description

Technical field [0001] The invention relates to a torque calibration instrument, which is particularly suitable for rapid calibration of the torque of a torque wrench and belongs to the technical field of detection. Background technique [0002] A torque wrench is a commonly used tool in the process of mechanical manufacturing and maintenance. In order to ensure the accuracy and reliability of the torque value of the torque wrench, it is necessary to use a torque calibrator to calibrate the torque wrench regularly. [0003] As attached figure 1 As shown, the existing torque calibrator includes a bottom plate, a mechanical auxiliary force adding mechanism, a measuring actuator and a data display mechanism. Among them, the mechanical auxiliary afterburner mechanism consists of an afterburner handwheel, a lead screw, a lead screw support, a lead screw slider, an afterburner arm, an afterburner arm slider and a wrench push rod. The afterburner handwheel is connected with the lead screw...

AI Technical Summary

Problems solved by technology

[0005] At the initial moment of torque wrench calibration by the existing torque calibrator, there is a distance L between the tail of the torque wrench and the wrench push rod, so the wrench cannot be applied force immediately, and the force hand wheel needs to be shaken to make the wrench push the rod to the torque The tail of the wrench gradually approaches, which consumes a long invalid working time, which is not conducive to the rapid calibration of the torque wrench torque, and there is a sudden change in the torque of the afterburner handwheel during this process, which negatively affects the accuracy of the measurement data. influences

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