Automatic compensation nailing mechanism for automobile headrest rod

The utility model provides an automobile headrest rod automatic compensation nailing mechanism which comprises an air cylinder fixing block and an air cylinder, the output end of the air cylinder is connected with the middle of a first nail box fixing block through an air cylinder movable connector, and a linear sliding rail is arranged below the first nail box fixing block. The bottom of the first nail box fixing block is fixedly connected with a second nail box fixing block, the second nail box fixing block is slidably connected with the linear sliding rail, the first nail box fixing block is connected with the nail box through a spring, the spring is arranged on a guide rod in a sleeving mode, one end of the guide rod is fixedly connected with the nail box, and the other end of the guide rod is fixedly connected with the linear sliding rail. One end of the first nail box fixing block is provided with a through hole, the other end of the first nail box fixing block is arranged in a guide sleeve on the first