The invention relates to the technical field of tool detection, in particular to a 3D vision tool end face axial run-out detection mechanism and an outer
diameter online detection method. The mechanism comprises a rack, a back plate, a test seat, an adjusting
assembly and a protective cover. The back plate is slidably arranged in a strip-shaped hole of the rack, and the adjusting
assembly comprises a tool mounting base and a multi-dimensional moving mechanism and is used for adjusting the position of a tool. The testing seat is arranged on one side of the
machine frame in a turnover mode, and a
laser displacement sensor and a
visual detection unit are arranged in the testing seat and used for detecting end face run-out and the outer
diameter size of the tool respectively. The protective cover is slidably arranged outside the test seat in a covering mode. The method comprises the steps that tool setting is conducted through the adjusting
assembly, end face run-out is detected through the
laser displacement sensor, images are shot through the industrial camera, the outer
diameter size is analyzed, and multi-angle measurement can be achieved by rotating the shooting
pose. The mechanism can realize high-precision detection of multiple parameters on one device, has protection and position adjustment functions at the same time, and adapts to detection requirements of cutters of different specifications.