POSITIONAL CORRECTION OF COMPONENT

摘要

PURPOSE:To improve the positional correction of a component in accuracy so as to enable the component to be accurately positioned by a method wherein partial images of the component are picked up through an image sensing device varying the relative position of the image sensing device to a component so as to enable a pair of adjacent partial images to partially overlap each other, and the coordinates of a required point on a component on a reference coordinates plane are obtained to compute the position of the component. CONSTITUTION:The partial adjacent images P1 and P2 of a component 1 which is in a transferring process by a suction head 2 are picked up through an image sensing device 4 such as an ITV camera or the like varying the relative position of the image sensing device 4 to the component 1 so as to enable the pair of adjacent partial images P1 and P2 to partially overlap each other. The same coordinate plane with the component images P1 and P2 is set to the partial images P1 and P2 respectively, and a horizontal coordinate axis and a vertical coordinate axis in the partial images P1 and P2 are set parallel to each other. Two or more partial images of the component 1 are taken through the image input device 4 varying the relative position of the device to the component 1, the coordinates of a prescribed part of the component 1 are obtained basing on the positional relation between the partial images, the suction head 2 is controlled in position so as to adjust the mounting position of the component 1.