Device for determining the angular unbalance position in a balancing machine for rotating pieces

A device for determining the angular unbalance position in a balancing machine for rotating pieces comprising

• first pulse generating means, associated with the rotating piece to be balanced, to generate a succession of pulses at a constant frequency depending on the rotational speed of the piece;
• second pulse generating means, associated with the rotating piece to be balanced, to generate a pulse each time the rotating piece passes through a predetermined angular position;
• a continuously counting pulse counter means connected to both said first and second pulse generating means to count the constant frequency pulses generated by said first pulse generating means and to be periodically zeroed by the pulse generated by said second pulse generating means;
• at least one vibration indicator means associated with the rotating piece to generate an unbalance indicator signal each time the rotating piece passes through an angular unbalance position;
• pulse formation means connected to said vibration indicator means to convert said unbalance indication signal into a pulse, the position in time of which is indicative of the angular unbalance position of the rotating piece to be balanced;
• memory means;
• coincidence circuit means connected to said pulse counter means, said memory means, and to said pulse formation means, to determine and to transfer to said memory means that state of counting of said pulse counter means which coincides with said pulse indicative of the angular unbalance position;
• and digital visualizer means connected to said memory means to provide visual representation of said memorized state of counting.