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GB1235555A - Improvements in or relating to numerical control systems - Google Patents

Improvements in or relating to numerical control systems

Info

Publication number
GB1235555A
GB1235555A GB33191/68A GB3319168A GB1235555A GB 1235555 A GB1235555 A GB 1235555A GB 33191/68 A GB33191/68 A GB 33191/68A GB 3319168 A GB3319168 A GB 3319168A GB 1235555 A GB1235555 A GB 1235555A
Authority
GB
United Kingdom
Prior art keywords
computer
programme
digital
positioning
axes
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
Application number
GB33191/68A
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.)
Houdaille Industries Inc
Original Assignee
Houdaille Industries Inc
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 Houdaille Industries Inc filed Critical Houdaille Industries Inc
Publication of GB1235555A publication Critical patent/GB1235555A/en
Expired legal-status Critical Current

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
    • G05B19/414—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
    • G05B19/21—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 incremental digital measuring device
    • G05B19/23—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 incremental digital measuring device for point-to-point control
    • G05B19/231—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 incremental digital measuring device for point-to-point 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
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4181—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by direct numerical control [DNC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Numerical Control (AREA)

Abstract

1,235,555. Programmed control of machine tools. HOUDAILLE INDUSTRIES Inc. July 11, 1968 [July 12, 1967], No.33191/68. Heading G3N. A numerical positioning control system comprises a stored programme digital computer in on-line real-time programmed communications with a console, supplying numerical positioning command data in accordance with a stored programme, and a machine tool positioning means, which receives digital signals therefrom in accordance with the command data. As shown, a computer 603 has a first stored programme therein with which it interprets command input numerical positioning data, derived from a tape reader 600 through a tape reader interface 601, and feeds digital command signals to X and Y axes servo loops 622, 623. The servo loops, incorporating digital to analog converters independently function to drive the machine axes 605, 607 at a high speed towards the commanded positions. When the axes are within a predetermined distance of the end point, digital-to-analogue circuits, (not shown), progressively slow down the axes. When both axes are in the vicinity of the end point for a required time, null detector components, (not shown), signal the computer via a machine positioning interface 628. Other operations of the computer 603 are then held by a programme interrupt signal from the interface 628. The computer energizes an axis Hold circuit, (not shown), and reads the contents of the absolute position registers 609, 610. The stored programme then compensates for an error in the new position command. The computer then determines if a punch, tool change or other operation should be initiated before a new positioning cycle takes place. A further stored programme enables the generation of new positioning programmes from a console 602 contemperaneously with the machine operation. While the programme being generated is stored in the memory of the computer, any items thereof may be recalled to the console 602 for modification and checking. The operator can then signal the computer to enter the programme on a punched tape. The digital feedback components 112, 611 are photo-electric transducers and include preamplifiers supplying squarewave signals to the synchronizers 117, 608 which determines the sense of rotation of each transducer and supplies a clock pulse for each rotation of the transducer.
GB33191/68A 1967-07-12 1968-07-11 Improvements in or relating to numerical control systems Expired GB1235555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65296867A 1967-07-12 1967-07-12

Publications (1)

Publication Number Publication Date
GB1235555A true GB1235555A (en) 1971-06-16

Family

ID=24618960

Family Applications (2)

Application Number Title Priority Date Filing Date
GB33191/68A Expired GB1235555A (en) 1967-07-12 1968-07-11 Improvements in or relating to numerical control systems
GB053/71A Expired GB1235556A (en) 1967-07-12 1968-07-11 Improvements in or relating to numerical control systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB053/71A Expired GB1235556A (en) 1967-07-12 1968-07-11 Improvements in or relating to numerical control systems

Country Status (4)

Country Link
CH (2) CH497740A (en)
DE (1) DE1763654A1 (en)
FR (1) FR1583529A (en)
GB (2) GB1235555A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699317A (en) * 1970-05-22 1972-10-17 Westinghouse Electric Corp Sampled data numerical contouring machine controller apparatus and method providable with on line capability for contour cornering deceleration and acceleration
CA951412A (en) * 1970-08-06 1974-07-16 John E. Stevenson Stored program numerical control system
US3746845A (en) * 1970-08-06 1973-07-17 Bendix Corp Numerical control system
FR2228247A1 (en) * 1973-05-04 1974-11-29 Feutrier Electronique Instruction processing in numerically controlled machine tool - enables computer to control several machines in priority order
US4633954A (en) * 1983-12-05 1987-01-06 Otis Engineering Corporation Well production controller system

Also Published As

Publication number Publication date
CH493884A (en) 1970-07-15
FR1583529A (en) 1969-11-07
CH497740A (en) 1970-10-15
DE1763654A1 (en) 1972-02-10
GB1235556A (en) 1971-06-16

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