Forging press workpiece-deficient detecting method

The present invention discloses a method for detecting forging machine missing pieces, characterized by detecting forging machine operating current judgment lack of parts, comprising the steps of: (1) Given a set value that is greater than in the absence forging press stamping inrush current rms and less than effective at forging machine stamping inrush current rms; (2) in a working cycle forging machine, forging machine sequentially detects the operating current of each current continuous rms cycle, with the set value; (3) if the step (2) at least one of the detected current value is greater than the set value, directly to the next step, otherwise an alarm signal; (4 ) repeat steps (2) and (3), to continuously monitor forging machine missing pieces. The present invention by detecting forging machine operating current rms can accurately determine the state of the press forging machine actual pressing station on the reliable detection to avoid false negative phenomenon.