US Patent 7882770 Machine with improved feeding and clamping devices

A feeding device is installed on a machine and is utilized to convey a workpiece to be machined. The feeding device includes first and second feeding apparatus and in conveying the workpiece the workpiece has two lateral sides engaged by the first and second feeding apparatuses respectively. A clamping device is installed on the machine and is utilized to hold the moving workpiece. The clamping device includes first clamping mechanism including first and second clamping apparatuses and a second clamping mechanism including a third clamping apparatus, with the first and second clamping device holding the lateral sides of the workpiece and with the third clamping apparatus holding the top side of the workpiece.