GB1226676A - Postion control system - Google Patents

Postion control system

Info

Publication number
GB1226676A
GB1226676A GB1226676DA GB1226676A GB 1226676 A GB1226676 A GB 1226676A GB 1226676D A GB1226676D A GB 1226676DA GB 1226676 A GB1226676 A GB 1226676A
Authority
GB
United Kingdom
Prior art keywords
machine
discriminator
phase
control loop
interrupted
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
Inventor
Bakel Joseph Francis
Gyorko Brinley Andrew
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1226676A publication Critical patent/GB1226676A/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
    • G05B19/19—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
    • 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
    • G05B2219/50083—Power loss, measures again loss of power

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

1,226,676. Programmed control of machines. GENERAL ELECTRIC CO. July 17, 1968 (Aug. 10, 1967], No.34137/68. Heading G3N. A numerical control system comprises a command signal generator, responsive to controlling input signals, for generating a command signal for a servo-control loop positioning a device, an absolute position register, for registering the desired position of the device, and a position tracking device for adjusting the position register and the command signal generator when the servoloop is interrupted. As shown, command signals are applied to a terminal 28 and fed to an absolute position register 12, indicating desired machine position, and a phase counter 10, providing a phase-controlled output waveform to an input of a discriminator 18 forming the comparison element of a control loop 35. The other input of the discriminator is supplied from a wave shaper 16 with a squarewave having a phase dependent upon the position of a machine 22 as sensed by a feedback transducer 24 comprising a resolver supplied with a sinusoidal waveform from a source 26. The discriminator detects the phase difference between the inputs and through a servo 20 moves the machine 22 towards the commanded position. The phase relationship between the inputs to the discriminator is also sensed by an update whenever the control loop 35 is interrupted. The output signal on lead 36 updates the absolute position register 12 whereby it always provides a correct numerical indication of the machine position. The machine control loop is interrupted by a switch not shown, to permit manual positioning which, it is stated, can be recorded to provide a programme for future automatic operation.
GB1226676D 1967-08-10 1968-07-17 Postion control system Expired GB1226676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65972867A 1967-08-10 1967-08-10

Publications (1)

Publication Number Publication Date
GB1226676A true GB1226676A (en) 1971-03-31

Family

ID=24646574

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226676D Expired GB1226676A (en) 1967-08-10 1968-07-17 Postion control system

Country Status (4)

Country Link
JP (1) JPS468905B1 (en)
DE (1) DE1798023C3 (en)
FR (1) FR1578357A (en)
GB (1) GB1226676A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488738A (en) * 1981-05-12 1984-12-18 Valdes Osvaldo J Synthetic plastic pipe coupling and method of assembly
DE3424246C2 (en) * 1984-06-30 1994-03-24 Teldix Gmbh Method for monitoring a drive system

Also Published As

Publication number Publication date
DE1798023B2 (en) 1976-09-16
JPS468905B1 (en) 1971-03-06
FR1578357A (en) 1969-08-14
DE1798023C3 (en) 1979-03-15
DE1798023A1 (en) 1971-09-09

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years