Method and device for producing mirror units for heliostats

Patent metadata

Field	Value
Publication number	US-9315005-B2
Application number	US-201214232037-A
Country	US
Kind code	B2
Filing date	Jul 26, 2012
Priority date	Jul 28, 2011
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A method and a device for producing mirror units for heliostats, comprising 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) a feed for main bodies ( 13 ) by means of a mirror-carrier delivery feed ( 3 ), b) a feed for fixing carriages ( 2 ) by means of running rails ( 4 ), c) a device for transferring a main body ( 13 ) into a fixing carriage, d) a mirror feed ( 8 ), e) an adhesive bonding device ( 5 ), f) a device for pressing a main body ( 13 ) together with a plurality of mirrors ( 11 ) and g) a measuring device ( 9 ) for checking relevant tolerances of the production process.

First claim

The invention claimed is:

1. A device for producing mirror units for heliostats comprising a main body as 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) a feed for main bodies ( 13 ) by means of a mirror carrier delivery feed ( 3 ),
b) a feed for fixing carriages ( 2 ) by means of running rails ( 4 ),
c) a device for transferring a main body ( 13 ) into a fixing carriage,
d) a mirror feed ( 8 ),
e) an adhesive bonding device ( 5 ),
f) a device for pressing on a main body ( 13 ) with a plurality of mirrors ( 11 ),
g) a measuring device ( 9 ) for checking relevant tolerances of the production process.

2. The device as claimed in claim 1 , wherein each fixing carriage ( 2 ) has, on its two opposite transverse sides, holding plates ( 18 , 28 ) which each ensure the mounting of a main body ( 13 ) by means of a two-point mounting, wherein both holding plates ( 18 , 28 ) can be actuated pneumatically and, in addition, on one side, a holding plate ( 18 ) permits slight rotation of the main body ( 13 ) via a rotating and fixing device ( 17 , 21 ), and wherein stress-free fixing is carried out by means of a locking brake.

3. The device as claimed in claim 1 wherein the output signal from the rotational angle sensor is used for quality control.

4. The device as claimed in claim 1 , wherein the main body ( 13 ) is provided with lateral fixing points ( 14 ).

5. The device as claimed in claim 1 , wherein by means of the adhesive bonding device ( 5 ), a plurality of parallel beads of adhesive ( 10 ) of different thickness are applied simultaneously.

6. The device as claimed in claim 1 , wherein the device for pressing on a main body ( 13 ) with a plurality of mirrors ( 11 ) has a pressure plate ( 29 ) which is flexurally rigid in all directions and, on its active surface, has an adjustable curvature which corresponds to the desired curvature of the mirror surfaces.

7. The device as claimed in claim 1 , wherein the measuring device ( 9 ) has means for checking all the relevant parameters which can have fabrication tolerances.

8. 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.

9. The method as claimed in claim 8 , wherein the device for pressing on the mirrors ( 11 ) with the main body ( 13 ) has a pressure plate ( 29 ) which is flexurally rigid in all directions and, on its active surface, has an adjustable curvature which corresponds to the desired curvature of the mirror surfaces.

Assignees

• Herre Erwin
• Vogt Bernd
• Grenzebach Maschb Gmbh

Inventors

• Herre Erwin
• Vogt Bernd

Classifications

• Y02E10/40

  Solar thermal energy, e.g. solar towers · CPC title

• F24S25/632

  Side connectors; Base connectors · CPC title

• F24S2025/601

  by bonding, e.g. by using adhesives · CPC title

• F24S2023/832

  curved · CPC title

• G02B7/183

  specially adapted for very large mirrors, e.g. for astronomy, {or solar concentrators} · CPC title