Combined calibration device of no-coupling six-dimensional force sensor

The invention discloses a combined calibration device of a no-coupling six-dimensional force sensor. The combined calibration device belongs to the technical field of sensor calibration and solves the problems of large volume and difficult assembly and debugging in a conventional calibration device of a six-dimensional force sensor. The combined calibration device comprises an Fz-direction calibration device, an Fx-direction and Fy-direction calibration device, an Mz-direction calibration device and an Mx-direction and My-direction calibration device. A lower board of a sensor body is pressed by a layering so as to fix the sensor main body to a bottom board. A force changeover disk is connected with the sensor body. One end of a lever is fixed to a bearing seat, and the other end of the lever is hung with a poise weight by using a wire rope. By using a lever principle, after being amplified, the weight of the poise weight is applied to the force changeover disk through a first loading rod and a second loading rod. The poise weight is used as a force source; and the force increase action is realized by using the lever principle and a pulley block. Compared with other calibration devices of a six-dimensional force sensor, the combined method provided by the invention has the advantages of smaller volume, fewer parts and simpler installation and debugging due to the realization of the calibration in different directions.