Method and device for producing mirror units for heliostats

A method for producing mirror units for heliostats having a main body as a carrier of a reflective surface and a fixing carriage to ensure stress-free mounting of the main body during production, comprising the following features:

• a) main bodies (13) are fed to a production line by means of a mirror carrier delivery feed (3), wherein said main bodies are either fabricated on site from metal sheets by means of connecting means or are supplied in fabricated form,
• b) fixing carriages (2) are fed to the production line by means of running rails (4), wherein said fixing carriages have, on each transverse side, means for a two-point mounting of a main body (13) and, by means of play-free mounting of the main body (13) on one of the two sides by means of a rotating and fixing apparatus (17, 21), stress-free mounting is ensured, wherein any possible rotation of the main body (13) resulting therefrom is registered by means of a sensor,
• c) in each case a main body (13) is transferred into a fixing carriage (2) by means of a gripping apparatus and fixed without stress by pneumatic means,
• d) by means of an adhesive bonding device (5), a plurality of parallel beads of adhesive (10) of different thickness are applied simultaneously,
• e) via a mirror feed (8), by means of a gripping apparatus, in each case a mirror (10) is removed from a store and is placed on the surface of the main body (13) provided with adhesive, wherein this operation is completed when the entire envisaged surface is covered with mirrors (10),
• f) the main body (13) covered with mirrors (10) in this way is fed to a device for pressing on the mirrors (10) with the main body (13) by means of a pressure plate (29),
• g) following the completion of the adhesive bonding operation, the fixing carriage (2) is fed to a measuring device (9), in which all the relevant parameters of the production process are checked for impermissible tolerances.