Method and system for populating printed circuit boards

Abstract

In order to populate printed circuit boards by means of a pick-and-place line, set-up families having associated set-ups are provided. Each set-up family is assigned at least one printed circuit board type and each set-up is assigned at least one component type, such that a printed circuit board of a printed circuit board type of a set-up family can be populated by means of components of the component types of the set-up assigned to the printed circuit board type on the pick-and-place line. A set-up can be implemented in the form of supplies of components of the component types, in order to be fitted on the pick-and-place line. A method for populating printed circuit boards comprises steps of acquiring jobs, in each case relating to populating printed circuit boards of a printed circuit board type on the pick-and-place line, and associated probabilities by means of which a job is to be executed in each case, assigning printed circuit board types of the jobs to set-up families, determining for each set-up family the characteristic number which comprises the sum of probabilities of those jobs, the printed circuit board types of which are comprised by the set-up family, optimizing the assignment in such a way that the characteristic numbers of different set-up families are as different as possible, providing a set-up from one of the determined set-up families on the pick-and-place line, and populating printed circuit boards on the pick-and-place line.

Description

technical field [0001] The present invention relates to methods and systems for assembling printed circuit boards. In this case, it is assumed that an assembly line is set up for equipping printed circuit boards with components. Background technique [0002] The electronic component comprises a printed circuit board and components, which are mechanically and electrically fixed on the printed circuit board. To manufacture printed circuit boards, devices are placed on the printed circuit board by means of an automatic assembly device (pick-and-place) and then combined with the printed circuit board in a reflow (Reflow) oven welding. A plurality of automatic assembly devices can be passed through one after the other on the assembly line. Assembly systems including multiple assembly lines may be used to manufacture multiple printed circuit boards. [0003] The assembly of a component type on an automatic assembly device is referred to as assembly (Rüstung). With a kit, a la...

AI Technical Summary

Problems solved by technology

However, equipping the equipment bench with (Aufrüsten) components of the predetermined component type is expensive

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