Abstract: A spring-forming control system and its control method for a spring forming machine in which the spring-forming control system uses a host computer to provide graphical spring parameter setting, program modification, and dragline-method program modification graphical interfaces that are selectively switchable on a display monitor. After setting of spring processing parameters through the spring parameter setting interface, a trial production is done subject to a spring parameter auto-generation software built in the spring-forming control system, and then the production is started if the trial meets the requirements, or the spring processing parameters are modified through the spring parameter setting interface, program modification interface, or dragline-method program modification interface if the trial does not meet the requirements, and then a further trial production is performed till the shaped spring meets the requirements.

Abstract: A spring forming machine includes a machine frame, a movable member, and a driving mechanism. The driving mechanism comprises a slide plate seat, a slide plate and a cam wheel. When fitting an eccentric pin unit and a filler within a horizontal slide slot in the slide plate, the slide plate seat rotates on the machine frame, and the slide plate moves on the slide plate seat so as to move the movable member along an elliptical path upon actuation. When locking the slide plate seat and removing the filler, the cam wheel moves the eccentric pin unit so as to move the slide plate on the slide plate seat and thus to move the movable member along a straight path upon actuation. When locking the slide plate seat and removing the eccentric pin unit and the filler, a follower shaft can be mounted removably on the slide plate in contact with the cam wheel to permit a straight movement of the movable member on the machine frame upon actuation.