The invention discloses a
steel ball size detecting device, belonging to the detection field. The
steel ball size detecting device comprises a worktable, a
material storage bin, a screen mesh, a sliding chute, a material outlet, a
material recycling channel and a
material recycling box; the
material storage bin is arranged on the worktable; the upper part of the
material storage bin is provided with the screen mesh; the material storage bin is connected with the sliding chute; a long circular groove is arranged on the sliding chute; the width of the long circular groove is a little less than the
diameter of a
steel ball with a normal size; the sliding chute is connected with the material outlet; and the lower part of the sliding chute is connected with the
material recycling channel and the material recycling box. According to the steel
ball size detecting device disclosed by the invention, large-scale and continuous automatic detection is realized on the premise of reducing labor intensity of workers; and the steel
ball size detecting device has the advantages of convenience for detection and high detection reliability, solves error
assembly and error detection caused by visual fatigue or absent mindedness of detecting personnel, and effectively avoids the possibility that unqualified products enter into the next working procedure, therefore the brought potential risks for automobiles are eliminated.