Novel fixture for testing adhesive force of laminated steel or paint film by pull-off test

A novel fixture for testing adhesive force of laminated steel or a paint film by a pull-off test comprises an upper connector, a lower connector, an upper trying pillar and a lower trying pillar, which are fixed on a tensile machine respectively, wherein a sample is bonded between the upper trying pillar and the lower trying pillar; the upper trying pillar is connected with the upper connector through an iron chain; the lower trying pillar is connected onto the lower connector. The novel fixture has the advantages that the human factor influence in the adhesive force test by the pull-off test is overcome; the labor intensity of experimenters is relieved, and the work efficiency is improved; through the combination of the experiment tensile machine and the pull-off test, the drawing at a constant speed is realized, the accuracy and the reproducibility of the test data are improved, and relatively scientific, objective and accurate reference is provided for the test result; the novel fixture has the characteris