Workpiece clamps and surface treatment equipment

Abstract

The invention relates to a workpiece clamping fixture comprising: a conductive frame element 630; several conductive primary chuck elements 610 supported by an upper frame element 631 to hold the upper edge of a rectangular workpiece 20; several conductive secondary chuck elements 620 supported by a lower frame element 632 to hold the lower edge of a rectangular workpiece; a common power supply unit 650; and a primary power supply unit 660 supplying power to the upper frame element from the common power supply unit; The second power supply unit provides power to the pair of vertical frame components 633,634 from the common power supply unit. The first power supply unit includes: the first pair of conductive components 661,662 which are electrically connected and fixed to both ends of the upper frame component and gradually guide the pair of vertical frame components in a way that moves vertically through the insulating component 635; and the second pair of conductive components 663,664 which are electrically connected to the common power supply unit with the first pair of conductive components.