Limiting device for flat head lead processing

The utility model relates to the technical field of flat head lead processing, in particular to a limiting device for flat head lead processing, which comprises a base, a working table, a guide rail, a threaded rod, a motor, a sliding block, a limiting arc plate and a moving unit, the working table is fixedly connected with the base, and the guide rail is fixedly connected with the top of the base and located on the left side of the working table. The two ends of the threaded rod are rotationally connected with the guide rails respectively, the output end of the motor penetrates through the guide rails and is fixedly connected with the threaded rod, the sliding block is provided with a threaded hole, and the limiting arc plate is fixedly connected with the sliding block. The output end of the motor drives the threaded rod to rotate, then under the cooperation of the threaded rod and the threaded hole, the sliding block moves downwards, the limiting arc plate is driven to move downwards, the flat head is clamp