Slot position detection device

The utility model discloses a slot position detection device which includes a base, a spacing assembly, a fixed seat, a rotating seat, a probe, a support seat and a dial indicator. The spacing assembly includes two single-side spacing groups which are fixed on a table top of the base and capable of positioning the fixed seat. The two single-side spacing groups form mirror symmetry relative to a vertical plane which a first line is on. Each single-side spacing group includes a first-type spacing block and a second-type spacing block. The first-type spacing block includes a first-type spacing face. The second-type spacing block includes a second spacing face. The beneficial advantages of the slot position detection device lie in that the probe is adopted to carry out direct physical contact so that the detection is more direct and simpler. Through comparison of read numbers of the dial indicator, it can be judged that whether the size meets demands so that operation steps are simplified and detection time is sa