Workpiece transfer device for row of presses - actuated by computerised numerical control system

摘要

The parent patent described a device conveying workpieces through a row of presses. In the entire space between two adjacent presses is a slide driven horizontally and fitted with pairs of tongs which reciprocate horizontally and vertically to move the workpieces. The novelty is that computerised numerical control (CNC), employing different programs to suit each workpiece, is utilised to operate the slide and the tongs. The CNC appts. is pref. actuated by an automatic input; punched tape; magnetic tape cassesttes; or solid state memory cassettes. Compared with the main patent, conventional CNC appts. is used which can be rapidly adjusted to suit the type of workpiece being fed through the presses.