73results about How to "Realize full closed-loop control" patented technology

The invention discloses an intelligent CNC spring machine used for processing extension springs, compression springs, torsion springs, spiral springs and the like. The intelligent CNC spring machine comprises a straightening mechanism, a wire feeding mechanism, a pitch mechanism, a core seat mechanism, a knife seat mechanism and a computer control system. The pitch mechanism comprises a pitch servo motor and a pitch ball screw pair driving a pitch shaft to move; the core seat mechanism comprises a core seat lifting mechanism and a core rod core-pulling mechanism; and the knife seat mechanism comprises a plurality of sliding knife seats and knife seat driving mechanisms and can move along an arc-shaped track in a radial direction. The spring machine is provided with five sections includinga straightening section, a wire feeding section, a pitch section, a core seat section and a knife seat section according to the principle of spring formation, and has reasonable structure design and is driven by a full servo and controlled by a computer so as to realize fully closed loop control and be capable of reducing the rejection rate of finished products. The intelligent CNC spring machinecan be widely applied to the production of various extension springs, compression springs, torsion springs, spiral springs and the like, with simple operation, high processing precision and high production efficiency.

The invention discloses a high-speed board thickness measuring and retaining device. The device comprises a guide mechanism and thickness measuring mechanisms; the guide mechanism is inserted on a sliding block with a reset spring in a sleeving manner, and can vertically move on a guide rail; the three thickness measuring mechanisms are arranged at the middle position and the two symmetric side positions of the place where a board passes through; a suspension mechanism is formed by the whole guide mechanism and the thickness measuring mechanisms, and the board to be measured is in the natural stretching state, the problems of measuring abrasion of a traditional displacement sensor and the damage to the board are solved, and the measuring precision is improved.

The invention provides a system enabling a moving metal toothed body with circumferentially and mechanically halving characteristics to automatically perform precision angular displacement detection and output displacement information. The side-mounted precision angular displacement self-detection system designs a group of detection heads which comprise exciting, induction and compensation coils, arranged beside a moving metal body to be detected and work with a microprocessor system to accurately obtain motion displacement information of the moving metal body in a non-contact mode. The system is characterized in that the detection heads are additionally provided with axially-halved grooves, and a single coil is axially wound and tangentially connected in series to weaken magnetic field edge effects of the coil; tooth crests of metal winding bases of the detection heads are tangentially and axially machined into a particular arc respectively; the metal body to be detected and toothed portions of the detection heads comply with set distribution principles; the detection heads are provided with signal compensation coils with independently adjustable compensation power supplies; the metal body to be detected and the detection heads are regarded as an overall mechanical system with a sensing function, and an online or system error correction technology is used, so that the whole system can have the capability of self-detection and precision displacement information output.