Automatic detection and control device for steel coil telescoping

The invention discloses an automatic detection and control device for steel coil telescoping, and belongs to the technical field of steel coil telescoping detection. The device comprises four detection devices and two chucks (5). The two chucks (5) are symmetrically arranged on the two sides of a steel coil (6). A first detection device (1) and a second detection device (2) are arranged on the left chuck (5). A third detection device (3) and a fourth detection device (4) are arranged on the right chuck. The first detection device (1) and the third detection device (3) are located on the upper portions of the chucks (5) and used for detecting the position of the steel coil (6) and carrying out synchronous control. The second detection device (2) and the fourth detection device (4) are located on the centers of the chucks (5) and used for detecting the telescoping position and the telescoping amount. The automatic detection and control device has the advantages that online full-automatic operation of telescoping repair can be achieved, and telescoping detection, judgment, adjustment, butt clamping, return and the like in the whole process are free of manual intervention.