WO2016188842A3 - Method and system for determining a workpiece contour and for correcting a target path for machining a workpiece in a machine tool - Google Patents

Method and system for determining a workpiece contour and for correcting a target path for machining a workpiece in a machine tool Download PDF

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Publication number
WO2016188842A3
WO2016188842A3 PCT/EP2016/061226 EP2016061226W WO2016188842A3 WO 2016188842 A3 WO2016188842 A3 WO 2016188842A3 EP 2016061226 W EP2016061226 W EP 2016061226W WO 2016188842 A3 WO2016188842 A3 WO 2016188842A3
Authority
WO
WIPO (PCT)
Prior art keywords
machine tool
workpiece
machining
contour
stylus
Prior art date
Application number
PCT/EP2016/061226
Other languages
German (de)
French (fr)
Other versions
WO2016188842A2 (en
Inventor
Peter Berg
Alexander Blum
Original Assignee
Blum-Novotest Gmbh
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 Blum-Novotest Gmbh filed Critical Blum-Novotest Gmbh
Publication of WO2016188842A2 publication Critical patent/WO2016188842A2/en
Publication of WO2016188842A3 publication Critical patent/WO2016188842A3/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
    • 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
    • G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
    • G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
    • 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
    • G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
    • G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
    • G01B5/012—Contact-making feeler heads therefor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/408—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by data handling or data format, e.g. reading, buffering or conversion of data
    • G05B19/4083—Adapting programme, configuration
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/35—Nc in input of data, input till input file format
    • G05B2219/35097—Generation of cutter path, offset curve
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37374—Deflection
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37491—Compensate non linearity of transducer by lookup table
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37575—Pre-process, measure workpiece before machining
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50062—Measure deviation of workpiece under working conditions, machine correction
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50071—Store actual surface in memory before machining, compare with reference surface

Abstract

The invention relates to a method for machining a workpiece, comprising the following steps: providing, in a receiving portion of a numerically-controlled machine tool, a measuring probe that comprises a stylus, said measuring probe being configured to emit an output signal that is at least partially and at least approximately proportional to a deflection of its stylus, and the progression of said output signal at least approximately reproducing a contour of a workpiece; determining, in a preparation phase, at least one correction function for at least one section of the output signals relating to the associated deflection of the measurement probe stylus; storing characteristic variables of said at least one correction function in the measurement probe or a machine control unit associated with the machine tool; at least partially continuously tracing the contour, in a tracing phase, of a workpiece clamped in the machine tool but not yet fully machined, using the stylus of the measurement probe provided in the receiving portion of the machine tool; correcting the output signal of the measurement probe using the characteristic variables of the correction function; supplying the corrected output data to the machine control unit associated with the machine tool; calculating the corrected output data with machine coordinates of the contour to be produced, for machining the workpiece clamped in the machine tool, such that control commands for the machine tool are received; and machining the workpiece clamped in the machine tool using a tool that is provided in the receiving portion of the machine tool.
PCT/EP2016/061226 2015-05-22 2016-05-19 Method and system for determining a workpiece contour and for correcting a target path for machining a workpiece in a machine tool WO2016188842A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015006636.6A DE102015006636A1 (en) 2015-05-22 2015-05-22 Method and system for detecting a workpiece contour and for correcting a desired path for machining a workpiece in a machine tool
DE102015006636.6 2015-05-22

Publications (2)

Publication Number Publication Date
WO2016188842A2 WO2016188842A2 (en) 2016-12-01
WO2016188842A3 true WO2016188842A3 (en) 2017-01-19

Family

ID=56015013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/061226 WO2016188842A2 (en) 2015-05-22 2016-05-19 Method and system for determining a workpiece contour and for correcting a target path for machining a workpiece in a machine tool

Country Status (2)

Country Link
DE (1) DE102015006636A1 (en)
WO (1) WO2016188842A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018133220A1 (en) * 2018-12-20 2020-06-25 Diana Hubert Contour detection device and its use
CN109885913B (en) * 2019-01-18 2023-07-25 北京工业大学 Method, device, equipment and storage medium for fitting hob abrasion profile
CN110989494A (en) * 2019-11-29 2020-04-10 上海交通大学 Thin-wall part machining error measuring and compensating method based on trigger type measuring head
CN111624944B (en) 2020-06-16 2023-09-08 富联裕展科技(深圳)有限公司 Cutter control device and method
CN111861236B (en) * 2020-07-27 2023-10-27 东北大学 Bar finishing process data synchronization method
EP4293444A1 (en) * 2022-06-14 2023-12-20 Siemens Aktiengesellschaft Integration of a continuous measuring probe into a numerical control

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419222A (en) * 1992-10-08 1995-05-30 The United States Of America As Represented By The United States Department Of Energy Method for measuring the contour of a machined part
DE69020494T2 (en) * 1989-11-03 1996-03-07 Rank Taylor Hobson Ltd Metrology.
DE10241087A1 (en) * 2002-08-29 2004-03-11 Blum-Novotest Gmbh Multidirectional coordinate measurement probe has spring wire rod fixed to allow probe tilting with slide constraint at upper end
WO2005031254A1 (en) * 2003-09-24 2005-04-07 Renishaw Plc Measuring methods for use on machine tools
US20080051927A1 (en) * 2004-01-06 2008-02-28 Renishaw Plc Machine Tool Workpiece Inspection System
DE102013001457A1 (en) * 2013-01-28 2014-07-31 Blum-Novotest Gmbh In a workpiece processing machine to be recorded temperature-compensated probe and method for temperature compensation of a probe
DE102013015237A1 (en) * 2013-09-13 2015-03-19 Blum-Novotest Gmbh Roughness measuring instrument for use in a machine tool and method for measuring roughness in a machine tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1477726A1 (en) * 1951-01-28 1969-05-08 Siemens Ag Method and device for correcting workpiece dimensions in numerically controlled machine tools
DE10114811A1 (en) * 2001-03-26 2002-10-10 Volkswagen Ag System for producing multi-axis machining processes on workpieces, determines current path data and/or deviation while taking into account material removed by workpiece machining
GB0417536D0 (en) * 2004-08-06 2004-09-08 Renishaw Plc The use of surface measurement probes
DE102007006421A1 (en) * 2007-02-05 2008-08-07 Robert Bosch Gmbh Method for operating controlled machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69020494T2 (en) * 1989-11-03 1996-03-07 Rank Taylor Hobson Ltd Metrology.
US5419222A (en) * 1992-10-08 1995-05-30 The United States Of America As Represented By The United States Department Of Energy Method for measuring the contour of a machined part
DE10241087A1 (en) * 2002-08-29 2004-03-11 Blum-Novotest Gmbh Multidirectional coordinate measurement probe has spring wire rod fixed to allow probe tilting with slide constraint at upper end
WO2005031254A1 (en) * 2003-09-24 2005-04-07 Renishaw Plc Measuring methods for use on machine tools
US20080051927A1 (en) * 2004-01-06 2008-02-28 Renishaw Plc Machine Tool Workpiece Inspection System
DE102013001457A1 (en) * 2013-01-28 2014-07-31 Blum-Novotest Gmbh In a workpiece processing machine to be recorded temperature-compensated probe and method for temperature compensation of a probe
DE102013015237A1 (en) * 2013-09-13 2015-03-19 Blum-Novotest Gmbh Roughness measuring instrument for use in a machine tool and method for measuring roughness in a machine tool

Also Published As

Publication number Publication date
DE102015006636A1 (en) 2016-11-24
WO2016188842A2 (en) 2016-12-01

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