Connecting rod detection method and device

The invention discloses a detection method and device for a connecting rod, and relates to the field of connecting rod detection, and the device comprises a first transmission belt, a second transmission belt, an infrared sensor, a first detection module, a second detection module, a third detection module, a fourth detection module and a fifth detection module, the second transmission belt is arranged on the right side of the first transmission belt, and the infrared sensor is arranged on the first transmission belt. The first laser sensor and the second laser sensor are arranged between the first conveying belt and the second conveying belt, the first laser sensor and the second laser sensor emit laser irradiation rays to detect the connecting rod to be detected, and whether the connecting rod to be detected is a correct connecting rod to be detected or not is judged. According to the detection method and device of the connecting rod, the problem that the pairing mark detection error rate of the to-be-detec