SUPPORT ARRANGEMENT FOR A MACHINE PORTAL AND METHOD FOR MANUFACTURE OF SUCH A SUPPORT ARRANGEMENT

• Main Author: HARNISCH GUNTER
• Format: Patent
• Language: English
• Published: 29.03.2007
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; CONVEYING; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PACKING; PERFORMING OPERATIONS; STORING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING

A support arrangement for a machine portal includes a lightweight support structure and a row of base segments supporting at least one guide rail of a linear drive on the support structure. Both the base segments and the guide rail exhibit different thermal expansion behavior from the support structure. The base segments are fixed at a distance from their edges by fixing screws to respective fastening members extending into the support structure. The base segments define at least one step on which they support the guide rail with a positive fit. The guide rail is fixed to the support structure by at least one expansion screw. The support arrangement maintains precise alignment of the guide rail while accommodating differing thermal expansions between the rail, base segments and support structure.