GB1163101A - Numerically controlled Machine. - Google Patents

Numerically controlled Machine.

Info

Publication number
GB1163101A
GB1163101A GB3856466A GB3856466A GB1163101A GB 1163101 A GB1163101 A GB 1163101A GB 3856466 A GB3856466 A GB 3856466A GB 3856466 A GB3856466 A GB 3856466A GB 1163101 A GB1163101 A GB 1163101A
Authority
GB
United Kingdom
Prior art keywords
required position
uniselector
motor
counter
driven
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
GB3856466A
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.)
Saab AB
Original Assignee
Saab AB
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 Saab AB filed Critical Saab AB
Publication of GB1163101A publication Critical patent/GB1163101A/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
    • G05B19/21—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
    • G05B19/238—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 only used to control speed in steps according to distance left, or to give a stop signal when error reaches zero
    • 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
    • G05B2219/34465—Safety, control of correct operation, abnormal states
    • 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
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41363—Excess in error, error too large, follow up error
    • 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
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42213—Position overshoot, axis still moves after stop
    • 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
    • G05B2219/43—Speed, acceleration, deceleration control ADC
    • G05B2219/43194—Speed steps, switch over as function of position

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)
  • Numerical Control (AREA)

Abstract

1,163,101. Digital control systems. SAAB AB. 30 Aug., 1966 [6 Sept., 1965], No. 38564/66. Heading G4H. In a control system, e.g. for a machine tool, pulses generated by a unit 7 (Fig. 2) as the work table moves, are compared in a counter 3 with the required position of the table, pulses received after the driving motor has received a stop signal being counted and if a predetermined number of such pulses are received an alarm signal is given. The motor 5 is controlled during normal working conditions by a voltage from a voltage divider 13. When the table nears its required position a contact 16 is moved under the control of the counter 3 so that the motor 5 is driven more slowly at a speed determined by the setting of a uniselector 15 until a further contact 17 is operated when the required position of the table has been reached. The uniselector 15 is controlled in accordance with the position of a uniselector 11, the setting of which determines the amount by which the table may overshoot the required position before an alarm signal is generated by the member 12. In a modification, the motor 5 is driven at a constant speed, but the speed at which the table moves is determined by a gear-box having magnetic clutches controlled by uniselector. In a further embodiment (Fig. 4), the counter 3 has a plurality of outputs 25 sequentially energized as the table nears its required position, one of the outputs controlling a contact 27 via selection means 26 so that the table is driven at a slower speed.
GB3856466A 1965-09-06 1966-08-30 Numerically controlled Machine. Expired GB1163101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1154865A SE306777B (en) 1965-09-06 1965-09-06

Publications (1)

Publication Number Publication Date
GB1163101A true GB1163101A (en) 1969-09-04

Family

ID=20294165

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3856466A Expired GB1163101A (en) 1965-09-06 1966-08-30 Numerically controlled Machine.

Country Status (4)

Country Link
DE (1) DE1563746B2 (en)
GB (1) GB1163101A (en)
NL (1) NL6612518A (en)
SE (1) SE306777B (en)

Also Published As

Publication number Publication date
SE306777B (en) 1968-12-09
NL6612518A (en) 1967-03-07
DE1563746B2 (en) 1971-09-30
DE1563746A1 (en) 1970-06-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees