Scale division measuring head

The utility model relates to a scale division measuring head. The scale division measuring head is characterized in that a probe is connected with a rotary electrode and is not in contact with a shell, a hole for the probe to penetrate through is reserved in the shell, the measurement movement range of the hole is sufficient, a rotating shaft is fixed to the shell, the rotary electrode is connected with the rotating shaft through a bearing and can rotate in space of the shell through the bearing with the rotating shaft as the center, one end of an extension spring is connected to the rotary electrode, the other end of the extension spring is fixed to the shell, an electrode pole is fixed to the shell through two screws, insulation is achieved between the two screws and the electrode pole and between the electrode pole and the shell, small steel balls are embedded into corresponding positions of the contact faces of the rotary electrode and the electrode pole respectively, the two poles of a signal transmission line are connected to the rotary electrode and the electrode pole respectively, and a fixing rod is installed on the shell. The practical divided scales between teeth of a polycrystalline diamond circular saw web can be measured, the manufacturing technological difficulty can be greatly lowered, and cost can be greatly reduced.