Torque coefficient determination method, device and equipment

The invention provides a torque coefficient determination method, device and equipment. The method comprises the following steps: acquiring a first pose change and a torque of a target point on a target surface; fitting the obtained torque and the first pose change relation to obtain a first fitting relation; acquiring a second pose change and a pre-tightening force of a target point in a scene that an assembly model for assembling the to-be-tested piece and the connecting piece applies a fixed increment pre-tightening force in different loading steps from simulation software; fitting the pre-tightening force and the second pose change to obtain a second fitting relationship; and based on the first fitting relationship and the second fitting relationship, finding out values of the torque and the pre-tightening force corresponding to each target point under the same pose change, so as to determine the torque coefficient of the to-be-tested piece based on the values. Therefore, by applying the technical scheme