Axial force calibration device of mouse cage stress ring composite structure

The invention relates to the technical field of axial force measurement of aero-engines, and discloses an axial force calibration device of a mouse cage stress ring composite structure, two calibration tests under pressing and pulling loading can be completed at a time without dismounting in the calibration process, the test process is simplified, and the test efficiency is improved. After the loading force arms correspond to the stress loading grooves through adjustment and positioning is completed, the loading ends of the loading force arms extend into the corresponding stress loading grooves so that the loading ends can be attached to the stress loading grooves, point contact is avoided, and therefore the force applied to the first pressing plate or the second pressing plate by the loading force arms is more uniform; the stress dispersing holes are formed in the stress loading grooves and can be formed in the stress concentration positions of the stress loading grooves, so that the problem that stress conc