Control device and wire feeder of laser welding machine

The utility model discloses a control device and a laser welding machine wire feeder, the laser welding machine wire feeder is provided with a wire feeding mechanism, the control device comprises a control panel, the control panel is provided with a signal input end, a counting encoder interface and a control chip, and the signal input end is used for receiving a wire feeding control signal and a speed reduction control signal of an upper computer; the control chip is connected with the signal input end and used for controlling a motor of the wire feeding mechanism to work according to the wire feeding control signal and controlling the rotating speed of the motor to be reduced to a first preset speed according to the speed reduction control signal. The counting encoder is electrically connected with the control chip and is used for detecting the rotating speed of the motor; and when the motor rotating speed output by the encoder is equal to the first preset rotating speed, the control chip controls the motor