Calibration apparatus for six-dimension heavy force sensor

Abstract

The invention provides a calibration device of a six-dimensional heavy force sensor, and belongs to the field of sensors as well as the measurement and the control thereof. By adopting a single force source, the calibration device is capable of calibrating the six-dimensional force of a force sensor. The calibration device comprises a base, a calibration workbench, an upright post, a lifting nut, a handle, a large force value loading mechanism adopting a worm wheel and a worm for transmission, an upper support tablet, a lead screw, a nut, a sleeve, a standard uni-directional force sensor, a ranging rod, a bolt, a connection block, an L-shaped plate, a sensor to be calibrated, a working shaft, a positioning pin, a base plate, a T-shaped bolt and a signal wire; and a mechanism to be calibrated consists of the ranging rod, the bolt, the connection block, the L-shaped plate, the sensor to be calibrated, the working shaft, the positioning pin and the base plate. The device is capable of loading the six-dimensional heavy force sensor and carrying out systematic calibration. The device has the characteristics of compact structure, simplicity, high rigidity and high precision, and can achieve precise calibration of the six-dimensional heavy force sensor.

Description

technical field [0001] The invention belongs to the field of sensors and measurement and control thereof, in particular to a calibration device for a six-dimensional force sensor of giant heavy-duty operating equipment. Background technique [0002] At present, the calibration devices for sensors at home and abroad are mainly weight-type and gantry-type calibration devices. The weight-type loading method can realize the individual calibration of each force, but due to the weight limit of the weight, even if the lever principle is used to lengthen the force arm, it is impossible to calibrate the large value range, and its structure is not compact, and the loading accuracy is not high. . The gantry-type calibration device can also perform comprehensive calibration of the six-dimensional force of the sensor. It has good operability, compact structure, and good rigidity, but it is difficult to calibrate large-scale sensors, and the upper limit of the force value cannot be very ...

AI Technical Summary

Problems solved by technology

The weight-type loading method can realize the individual calibration of each force, but due to the weight limit of the weight, even if the lever principle is used to lengthen the force arm, it is impossible to calibrate the large value range, and its structure is not compact, and the loading accuracy is not high.

The gantry-type calibration device can also perform comprehensive calibration of the six-dimensional force of the sensor. It has good operability, compact structure, and good rigidity, but it is difficult to calibrate large-scale sensors, and the upper limit of the force value cannot be very high It can meet the working requirements of large force sensors in giant heavy-duty equipment

Giant heavy-duty operating equipment has the characteristics of large inertia, multiple degrees of freedom, and variable stiffness. Vigorous force sensor is used for static calibration, so the traditional calibration device mentioned above cannot meet the calibration requirements of six-dimensional force sensor

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