Automatic touch screen torque wrench calibrator

Abstract

The invention provides a fully-automatic contact-screen type torque wrench verification device. The verification device comprises a housing body, a driving unit, a speed reduction torque unit, a power transmission unit and a torque sensor. The housing body is of a cuboid type box body. A control panel is installed on the upper surface of the cuboid type box body. A torque wrench fixing unit is arranged on the outer wall, where the short edge of the housing body is arranged, of the side wall. The power transmission unit comprises a worm gear and a worm, which cooperate with each other in a shaft perpendicular manner. The output shaft of the driving unit, the central shaft of the speed reduction torque unit and the worm are successively coaxially arranged in the housing body along the long edge of the housing body. The driving unit is fixed on the base wall of the housing body via an installation seat. The worm is erected on the base wall. A bar-shaped elastic body of the torque sensor is fixed in a shaft hole of the worm gear. One end of the bar-shaped elastic body stretches into a through hole in the side wall where the short edge of the housing body is arranged and can be clamped in a torque wrench on a fixed unit outside the side wall. The other end of the bar-shaped elastic body is electrically connected with the control unit. The verification device is small, portable, simple to dismantle and applied in verification of a torque wrench.

Description

technical field [0001] The invention belongs to the technical field of automatic control and calibration, is suitable for the detection and calibration of torque wrenches, and can realize fully automatic testing. It can also be used in other torque testing systems that require electric drive. Background technique [0002] The torque wrench calibrator is an important device to test the accuracy of the torque wrench and to calibrate the torque wrench. Any torque wrench can only be used normally after regular calibration. [0003] The digital display torque wrench is a heavy measuring instrument that needs to control or measure the torque value quantitatively. In order to ensure the accuracy of the torque wrench tightening, it is necessary to regularly send the digital display torque wrench to the nationally recognized measurement unit or measurement department for verification or calibration. Verification and calibration of the torque wrench requires the use of special equip...

AI Technical Summary

Problems solved by technology

[0004] The imported torque wrench calibration table is expensive and complicated to maintain, and there are difficulties in wide-scale promotion

The domestic torque wrench calibration platform has a thin torque elastic body, low measurement accuracy and stability, prone to plastic deformation (permanent damage cannot be repaired), and the measurable range is narrow, large in size, cumbersome to transport and inconvenient to use

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