Automatic clamp positioning self-checking mechanism of double-spindle boring machine

The utility model relates to the technical field of boring machine processing, in particular to an automatic clamp positioning self-checking mechanism of a double-spindle boring machine, which comprises a double-spindle boring machine body and a boring machine sliding seat, a first transverse plate is mounted above the boring machine sliding seat, a worktable is fixedly connected above the first transverse plate, and a self-checking device is mounted in the middle of the worktable. The position of the center point of the front end face of a workpiece needing to be positioned can be marked through a marking pen and the like, then the workpiece is clamped and positioned through a clamping plate and the like, a detection ring is pulled upwards to drive a first vertical plate to move upwards, and the first vertical plate drives a check block to move; as the center point of the detection ring and the center point of the distance between the two clamping plates are on the same vertical line, the center point of the