Method and a fixture system for positioning and fixing details for assembly

A welding fixture system for the positioning and clamping of details to be assembled through welding, characterized by selectively interconnectable standard fixture components (1, 5, 7, 14) provided with hole systems (2, 6, 8, 25) where the holes are provided in exact positions with predetermined pitch, the standard fixture components being interconnectable in predetermined exact positions in the longitudinal, transversal and vertical direction with the hole systems (2, 6, 8) selectively extendable along the X-, Y-and/or Z-axis of a coordinate system, all of the holes of the hole systems having specified positions in the coordinate system, said welding fixture system comprising a computer for storing drawing information regarding a product, for storing fixture standard component data and fixture means data and for establishing an installation plan for the specific fixture to be built in each case, based on the stored drawing information and the fixture component data.

A method for providing a fixture for the positioning and clamping of details to be assembled, comprising the steps of storing in a computer drawing information regarding a product, fixture standard component data and fixture means data;

• establishing a zero position on the product;
• providing an installation plan for the specific fixture to be built through determining, based on the stored drawing information and the fixture component data, support positions for the fixture relative to the product, in a system of coordinates and starting from the zero position on the product;
• and building up a fixture according to the installation plan, from standard fixture components selectively interconnectable by means of a hole system extendable in the direction of the X-, Y- and/or Z-axis of the system of coordinates.