WO2007111656A3 - Temperature compensation system for a coordinate measuring machine - Google Patents

Temperature compensation system for a coordinate measuring machine Download PDF

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Publication number
WO2007111656A3
WO2007111656A3 PCT/US2006/046294 US2006046294W WO2007111656A3 WO 2007111656 A3 WO2007111656 A3 WO 2007111656A3 US 2006046294 W US2006046294 W US 2006046294W WO 2007111656 A3 WO2007111656 A3 WO 2007111656A3
Authority
WO
WIPO (PCT)
Prior art keywords
support structure
respect
rail
movement
coupling
Prior art date
Application number
PCT/US2006/046294
Other languages
French (fr)
Other versions
WO2007111656A2 (en
WO2007111656B1 (en
Inventor
Wilhelmus Godefridus Weekers
Jens Hupkau
David W Payette
John Langlais
Original Assignee
Hexagon Metrology Ab
Wilhelmus Godefridus Weekers
Jens Hupkau
David W Payette
John Langlais
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hexagon Metrology Ab, Wilhelmus Godefridus Weekers, Jens Hupkau, David W Payette, John Langlais filed Critical Hexagon Metrology Ab
Publication of WO2007111656A2 publication Critical patent/WO2007111656A2/en
Publication of WO2007111656A3 publication Critical patent/WO2007111656A3/en
Publication of WO2007111656B1 publication Critical patent/WO2007111656B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
    • G01B21/045—Correction of measurements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0003—Arrangements for preventing undesired thermal effects on tools or parts of the machine
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0011—Arrangements for eliminating or compensation of measuring errors due to temperature or weight
    • G01B5/0014—Arrangements for eliminating or compensation of measuring errors due to temperature or weight due to temperature

Abstract

A machine, such as a coordinate measuring machine, having a component or element movable with respect to a support structure along rails or guideways, wherein the rails have a coefficient of thermal expansion that is different from that of the support structure to which they are attached. Differential thermal expansion and contraction of the rails with respect to the support structure may be accommodated without binding or distortion of the rails by coupling each guideway to the support structure at two different points. Typically, the coupling at the first point is rigid and prevents any movement of the rail with respect to the support structure. The second coupling includes a flexible component that permits movement of the rail with respect to the support structure in a direction of movement of the element or component. This flexible component may be a leaf spring. In another embodiment, the first coupling may also be flexible. A method is also disclosed for accommodating differential thermal expansion and contraction of the rail with respect to the support structure by providing first and second couplings between the rail and support structure wherein at least the second coupling includes a flexible component that permits movement of the rail with respect to the support structure in a direction generally parallel to the direction of movement of the machine element.
PCT/US2006/046294 2005-12-06 2006-12-04 Temperature compensation system for a coordinate measuring machine WO2007111656A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/294,784 US7191541B1 (en) 2005-12-06 2005-12-06 Temperature compensation system for a coordinate measuring machine
US11/294,784 2005-12-06

Publications (3)

Publication Number Publication Date
WO2007111656A2 WO2007111656A2 (en) 2007-10-04
WO2007111656A3 true WO2007111656A3 (en) 2007-11-29
WO2007111656B1 WO2007111656B1 (en) 2008-01-17

Family

ID=37863702

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/046294 WO2007111656A2 (en) 2005-12-06 2006-12-04 Temperature compensation system for a coordinate measuring machine

Country Status (2)

Country Link
US (1) US7191541B1 (en)
WO (1) WO2007111656A2 (en)

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Also Published As

Publication number Publication date
WO2007111656A2 (en) 2007-10-04
US7191541B1 (en) 2007-03-20
WO2007111656B1 (en) 2008-01-17

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