Konstruktion av kassett och kalibreringsstation till jetprintern MY500

Sammanfattning: MYDATA automation AB is one of the leading companies in development of surface-mounting technology and stencil free solder paste applications. MYDATA’s MY500 is a jet printer designed for solder paste application on printed circuit boards. The jet printer contains a cassette which consists of a holder and a cartridge. There is also a calibration unit which monitors and calibrates the application of solder paste. In a prior development project two concepts for each unit has been devised. Some aspects of industrial design have been taken into consideration but not all. The purpose of this master’s thesis was to improve ergonomics, function, usability and costeffectiveness on both the cassette and the calibration unit in the MY500. Another important goal was to design the parts more esthetically pleasing. It was also desirable to minimize the weight of the cassette. The thesis started with a pre-study where the concepts were analyzed. An information gathering which consisted of a literature study, user surveys and interviews with various employees of MYDATA was conducted. A specification requirement was formulated based on the data collected from the information gathering. A frame of reference was developed for the thesis; it contains information from earlier projects, investigations and other useful information. The concepts were analyzed and the problems was identified and considered in the concept generation phase. The concepts were actualized in the design phase, the most important tools in the design phase being CAD and FEM software. Various materials were taken into consideration during the design. Detail drawings for the calibration units were produced. Finally a costanalysis was performed. Four prototypes were constructed. From these four, two have been deemed the most relevant to continue working with. The cassette prototype is similar to the current solution but has better ergonomics, weighs less and is independent of the orientation of the tubes flanges, which was a requirement from customers. The calibration unit has a sheet metal frame and casing. This is a cost-effective solution which is considered to be substantially cheaper than today’s calibration unit.