Industrial robot connecting rod rigidity testing method

The invention relates to the field of industrial robot connecting rod rigidity testing, in particular to an industrial robot connecting rod rigidity testing method. The industrial robot connecting rod rigidity testing method comprises the following steps of S1, side mounting of a whole robot; S2, robot connecting rod load calculation; S3, adjusting the test pose of the robot; S4, mounting a robot test tool; S5, loading a load and recording relative displacement; and S6, connecting rod rigidity calculation result output, quantitatively obtaining of industrial robot connecting rod rigidity under the condition that a machine is not disassembled. In order to guarantee the accuracy of an independent test result of each connecting rod, the relative displacement of the tail end of each connecting rod relative to a connecting rod coordinate system needs to be tested, a small tool is used for assisting the test, the test process is convenient, the requirement for experiment testers is low, and the test efficiency is h