Method of producing motor vehicles and tool suitable therefor
A method of producing vehicles includes coating a vehicle body with paint, drying the paint, mounting attachment parts on load-bearing components of the vehicle body that has been coated with the paint that has been dried, and applying an adhesive film including an adhesive layer to a surface of the vehicle body that has been coated with the paint that has been dried or at least one attachment part mounted thereon, wherein, to apply the adhesive film, the adhesive film is positioned between the surface and an elastic membrane with an automated system, and the elastic membrane is transformed in selected regions into a curved state with a convex and a concave side and is brought into contact with the surface with the convex side in front such that the adhesive layer of the adhesive film is pressed onto the surface by the membrane over the entire surface area.
1 . A tool that applies an adhesive film to a surface of a motor vehicle body that has been coated with at least one paint that has been dried and/or hardened or an attachment part mounted thereon, comprising:
a. an elastic membrane,
b. a means for fixing the adhesive film in a parallel alignment in relation to the elastic membrane, and
c. a frame that forms, together with the surface to be provided with adhesive and the membrane, a negative-pressure chamber in which the adhesive film is arranged and comprising a valve for ventilation and into which the elastic membrane can curve when the negative-pressure chamber is subjected to a negative pressure, wherein the negative pressure is configured for variation depending on a pressure exerted by the elastic membrane via the adhesive film on the surface.
2 . The tool as claimed in claim 1 , wherein at least one of:
a. the frame has a rectangular form,
b. the frame has a first opening closed by the membrane,
c. the frame comprises at least one elastic sealing element that can lie in a sealing manner against the surface,
d. the frame comprises a second opening at the edges of which the at least one elastic sealing element is fixed,
e. the frame comprises at least one connection for a negative-pressure source via which the negative-pressure chamber can be subjected to negative pressure, and
f. the frame comprises at least one attachment as a means for fixing the adhesive film.
3 . The tool as claimed in claim 1 , wherein at least one of:
a. the frame is composed of two or more sub-frames,
b. the frame has a rectangular form and is composed of the two or more rectangular sub-frames,
c. the frame comprises a first rectangular sub-frame on which an elastic sealing element is fixed and comprises a connection for a negative-pressure source, and
d. the frame comprises a second rectangular sub-frame that comprises an attachment for the adhesive film.
4 . The tool as claimed in claim 1 , further comprising at least one of:
a. a pressure equalizing chamber delimited by the membrane,
b. a connection for a pressure source or a negative-pressure source that leads into the pressure equalizing chamber, and
c. a valve via which the pressure equalizing chamber can be ventilated.
5 . The tool as claimed in claim 1 , wherein the tool is fixed on an automated system.
6 . The tool as claimed in claim 1 , arranged in a production line for production of motor vehicles.