Pipe seam recognition device and method for cold pilger mill

The invention provides a pipe seam recognition device and method for a high-speed cold pilger mill. Comprising a first core rod chuck (1), a core rod rod (2), a pinch roll unit (3), a second core rod chuck (5), a first feeding chuck (6), a servo motor (8), a rotary feeding device (9), a second feeding chuck (10), a rolling area (11) and a controller (12). The first core rod chuck (1), the second core rod chuck (5) and the pinch roll unit (3) are all provided with sensors electrically connected with the controller (12). The device is provided with the diameter measurement sensor, the tail ends of the pipe blanks are accurately positioned in a diameter measurement mode, the problem that the joint position of the two pipe blanks is accurately detected is solved, and the problems that in an existing pipe seam recognition technology, detection signals are unstable and unreliable, the signals are prone to being interfered, and the pipe seam position cannot be accurately recognized are solved. 本发明提供了一种高速冷轧管机管缝识别装置及方