US3656124A - Linear and circular interpolation contouring control using repeated computation - Google Patents

Linear and circular interpolation contouring control using repeated computation Download PDF

Info

Publication number
US3656124A
US3656124A US762835A US3656124DA US3656124A US 3656124 A US3656124 A US 3656124A US 762835 A US762835 A US 762835A US 3656124D A US3656124D A US 3656124DA US 3656124 A US3656124 A US 3656124A
Authority
US
United States
Prior art keywords
delta
signals
representing
along
axis
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US762835A
Other languages
English (en)
Inventor
John K Mcgee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giddings and Lewis LLC
Original Assignee
Giddings and Lewis LLC
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 Giddings and Lewis LLC filed Critical Giddings and Lewis LLC
Application granted granted Critical
Publication of US3656124A publication Critical patent/US3656124A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G05B19/414—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
    • 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
    • G05B19/19—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/33—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an analogue measuring device
    • G05B19/37—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an analogue measuring device for continuous-path control
    • G05B19/371—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an analogue measuring device for continuous-path control the positional error is used to control continuously the servomotor according to its magnitude
    • 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
    • G05B19/41—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 interpolation, e.g. the computation of intermediate points between programmed end points to define the path to be followed and the rate of travel along that path
    • G05B19/4103—Digital interpolation
    • 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
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34132—Choosing largest, major coordinate axis
    • 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
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34167—Coarse fine, macro microinterpolation, preprocessor

Definitions

  • a numerical path control system including a time shared digital computer generating for each of a plurality of axes regularly recurring numerical excursion commands.
  • a two axis system is shown to be capable of deriving from a small number of data words successive straight line path or circular arc path command signals at a rate of 50 times a second and of converting these into intennediate or secondary command signals which are applied to the servos of the machine axes at a rate of 500 times a second.
  • SHEET 03UF 76 PATENTEDAPR 1 1 1972 PATENTEDAPR 1 1 1972 SHEET 120F 76 Q mu my 5% Q Mil 6 702. JOHN K MC GEE I'llllll SHEET 130! 76 PATENTEDAFR 1 1 me ITrJZA/EVJ'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Numerical Control (AREA)
  • Feedback Control In General (AREA)
US762835A 1968-09-26 1968-09-26 Linear and circular interpolation contouring control using repeated computation Expired - Lifetime US3656124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76283568A 1968-09-26 1968-09-26

Publications (1)

Publication Number Publication Date
US3656124A true US3656124A (en) 1972-04-11

Family

ID=25066140

Family Applications (1)

Application Number Title Priority Date Filing Date
US762835A Expired - Lifetime US3656124A (en) 1968-09-26 1968-09-26 Linear and circular interpolation contouring control using repeated computation

Country Status (5)

Country Link
US (1) US3656124A (enrdf_load_stackoverflow)
JP (1) JPS507222B1 (enrdf_load_stackoverflow)
CA (1) CA961959A (enrdf_load_stackoverflow)
DE (1) DE1948490C3 (enrdf_load_stackoverflow)
GB (1) GB1289504A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842330A (en) * 1972-08-09 1974-10-15 Giddings & Lewis Method and apparatus for numerical control of members independently movable along coincident axes
US4041287A (en) * 1976-09-08 1977-08-09 Giddings & Lewis, Inc. Final servo control in NC systems
US4509126A (en) * 1982-06-09 1985-04-02 Amca International Corporation Adaptive control for machine tools
US4914364A (en) * 1987-10-22 1990-04-03 Mitsubishi Denki Kabushiki Kaisha Numerical control apparatus
US5520077A (en) * 1994-01-26 1996-05-28 Lindstrom; Conrad B. Numerically controlled contouring head having translation of axial spindle movement into radial cutting edge movement
US20070069665A1 (en) * 2003-05-05 2007-03-29 Toshio Takahashi Multi-axis ac servo control system and method
US20080058984A1 (en) * 2006-08-04 2008-03-06 Hurco Companies, Inc. Generalized kinematics system
US20080058982A1 (en) * 2006-08-04 2008-03-06 Hurco Companies, Inc. Machine tool control system
US7529599B1 (en) * 2003-09-30 2009-05-05 Rockwell Automation Technologies, Inc. Systems and methods for coordination motion instructions
US20090183610A1 (en) * 2005-12-13 2009-07-23 Renishaw Plc Method of Machine Tool Calibration
US8773427B2 (en) 2010-12-22 2014-07-08 Sony Corporation Method and apparatus for multiview image generation using depth map information

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT942654B (it) * 1971-09-30 1973-04-02 Olivetti & Co Spa Sistema di controllo numerico per il comando simultaneo di piu uten sili o assi di una o piu macchine utensili
BE790191A (fr) * 1971-12-01 1973-02-15 Gretsch Unitas Gmbh Assemblage de coin pour elements horizontal et vertical d'un chassis defenetre, de porte, ect.
US3909600A (en) * 1972-06-26 1975-09-30 Cincinnati Milacron Inc Method and apparatus for controlling an automation along a predetermined path

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058657A (en) * 1956-11-15 1962-10-16 Inductosyn Corp Variable speed drive interpolation system for automatic machine control
US3109092A (en) * 1959-12-24 1963-10-29 Licentia Gmbh Digital curve computer for use in controlling the path of a work tool or work piece
US3277288A (en) * 1961-03-02 1966-10-04 Emi Ltd Automatic control mechanism for machine tools

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058657A (en) * 1956-11-15 1962-10-16 Inductosyn Corp Variable speed drive interpolation system for automatic machine control
US3109092A (en) * 1959-12-24 1963-10-29 Licentia Gmbh Digital curve computer for use in controlling the path of a work tool or work piece
US3277288A (en) * 1961-03-02 1966-10-04 Emi Ltd Automatic control mechanism for machine tools

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842330A (en) * 1972-08-09 1974-10-15 Giddings & Lewis Method and apparatus for numerical control of members independently movable along coincident axes
US4041287A (en) * 1976-09-08 1977-08-09 Giddings & Lewis, Inc. Final servo control in NC systems
US4509126A (en) * 1982-06-09 1985-04-02 Amca International Corporation Adaptive control for machine tools
US4547847A (en) * 1982-06-09 1985-10-15 Amca International Corporation Adaptive control for machine tools
DE3348159C2 (enrdf_load_stackoverflow) * 1982-06-09 1992-12-17 Giddings & Lewis, Inc., Fond Du Lac, Wis., Us
US4914364A (en) * 1987-10-22 1990-04-03 Mitsubishi Denki Kabushiki Kaisha Numerical control apparatus
US5520077A (en) * 1994-01-26 1996-05-28 Lindstrom; Conrad B. Numerically controlled contouring head having translation of axial spindle movement into radial cutting edge movement
US7245100B2 (en) * 2003-05-05 2007-07-17 International Rectifier Corporation Multi-axis AC servo control system and method
US20070069665A1 (en) * 2003-05-05 2007-03-29 Toshio Takahashi Multi-axis ac servo control system and method
US7529599B1 (en) * 2003-09-30 2009-05-05 Rockwell Automation Technologies, Inc. Systems and methods for coordination motion instructions
US8000818B1 (en) 2003-09-30 2011-08-16 Rockwell Automation Technologies, Inc. Systems and methods for coordination motion instructions
US20090183610A1 (en) * 2005-12-13 2009-07-23 Renishaw Plc Method of Machine Tool Calibration
US8250952B2 (en) * 2005-12-13 2012-08-28 Renishaw Plc Method of machine tool calibration
US8875603B2 (en) 2005-12-13 2014-11-04 Renishaw Plc Method of machine tool calibration
US20080058984A1 (en) * 2006-08-04 2008-03-06 Hurco Companies, Inc. Generalized kinematics system
US20080058982A1 (en) * 2006-08-04 2008-03-06 Hurco Companies, Inc. Machine tool control system
US8024068B2 (en) * 2006-08-04 2011-09-20 Hurco Companies, Inc. Machine tool control system
US8725283B2 (en) 2006-08-04 2014-05-13 Hurco Companies, Inc. Generalized kinematics system
US8773427B2 (en) 2010-12-22 2014-07-08 Sony Corporation Method and apparatus for multiview image generation using depth map information

Also Published As

Publication number Publication date
DE1948490A1 (de) 1970-04-02
DE1948490B2 (de) 1975-02-13
GB1289504A (enrdf_load_stackoverflow) 1972-09-20
DE1948490C3 (de) 1975-09-25
JPS507222B1 (enrdf_load_stackoverflow) 1975-03-24
CA961959A (en) 1975-01-28

Similar Documents

Publication Publication Date Title
US3656124A (en) Linear and circular interpolation contouring control using repeated computation
US3548172A (en) Adaptive control system for numerically controlled machine tool
US3634662A (en) Numerical control system and method
US4554497A (en) Acceleration/deceleration circuit
US3911347A (en) Adaptive control system
US3576979A (en) Motion monitor system
US3727191A (en) Acceleration-deceleration for numerical control
US3757095A (en) Numerical control system
US3748563A (en) Numerical control devices for machine tools to permit continuous motion between segments of the desired path
US5070287A (en) Method for a numerical positioning control system
US4549271A (en) Measurement method by numerical control device
US3866027A (en) Digital tool size compensation for numerical control
US3551656A (en) Numerical control system
US4130788A (en) Numerical control servo system
US3518513A (en) Position control device comprising an interpolating unit
US3612976A (en) Position control system
US3246125A (en) Numerical control system for a machine tool
US3569814A (en) Programmed digital servo control including repeated command updating whereby output function becomes smoothly varying
US4415967A (en) Multi-axis controller
US3443178A (en) Servo system
US3648244A (en) Readout system for selective display of digital data on time-shared conductors
US3414787A (en) Numeric control and servo system
US3148316A (en) Contouring control apparatus
US3593091A (en) System for positioning movable members with absolute dimension with selectable offset point
US3749995A (en) Method and apparatus for producing digital contour movement on at least three axes