Abstract: A laser--punch composite processing machine has a vibration-proofing frame mounted on the main frame with a preload to enhance this vibration property and a laser beam generator mounted on the vibration-proof frame, an optical beam pathway between the laser beam generator and a processing head having first, second and third tubes mounted without physical contact therebetween.

Abstract: In a plate processing machine such as punch press provided with a workpiece moving/positioning device (49) including a carriage base (53) movable in the longitudinal Y-axis) direction of the machine and a carriage (69) movable in the lateral (X-axis) direction of the machine, a carriage drive unit of an X-axis motor (79) and a reduction gear (77) for moving the carriage is disposed near a middle portion of the carriage base to balance the workpiece moving/positioning device, so that workpiece processing precision can be improved. Further, the width of a caterpillar table (82) fixed to the carriage base between two movable tables (81) also fixed to the carriage base is reduced to prevent vibration of the caterpillar table, so that scratches under the surface of a workpiece can be reduced.

Abstract: The present invention relates to a punch press having a frame having an overhead beam and base portion, a vertically movable ram mounted at a front end of the overhead beam, a tool holder having upper and lower arms and being disposed on the base portion of the frame with a gap between the tool holder and the overhead beam, a plurality of upper punching tools disposed at a front end of the upper arm of the tool holder, a plurality of lower tools corresponding to the upper tools and disposed at a front end of the lower tool holder, a striker mounted on the ram so as to hit each of the upper punching tools and a workpiece feeding and positioning device disposed on the tool holder. The elements of the invention are arranged such that vibration and shocks occurring during the operation of the ram are not transmitted to the workpiece feeding and positioning device, and the punching tools.