Device for detecting surface of thread sleeve

The utility model discloses a thread sleeve surface detection device which comprises a working table, a supporting frame is fixedly arranged at the top of the working table, a fixing frame is fixedly arranged at the bottom of the supporting frame, a moving assembly is arranged in the fixing frame, the fixing frame is provided with a threaded column through the moving assembly, and the threaded column is fixedly connected with the working table. A supporting assembly is arranged at the top of the workbench, a first supporting block is fixedly arranged at the top of the workbench, a detection assembly is arranged in the first supporting block, second supporting blocks are fixedly arranged at the top of the workbench, and a clamping assembly is arranged between the opposite faces of the second supporting blocks. According to the device, whether the thread sleeve is qualified or not is detected through the detection groove, when the thread sleeve is not engaged with the interior of the detection groove, the detec