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GB1296673A - - Google Patents

Info

Publication number
GB1296673A
GB1296673A GB1296673DA GB1296673A GB 1296673 A GB1296673 A GB 1296673A GB 1296673D A GB1296673D A GB 1296673DA GB 1296673 A GB1296673 A GB 1296673A
Authority
GB
United Kingdom
Prior art keywords
photo
head
motor
line
displacement
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
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 filed Critical
Publication of GB1296673A publication Critical patent/GB1296673A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/12—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means
    • B23Q35/127—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using non-mechanical sensing
    • B23Q35/128—Sensing by using optical means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K11/00—Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal
    • G06K11/02—Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Computer Hardware Design (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Machine Tool Copy Controls (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

1296673 Photo-electric line follower BRITISH OXYGEN CO Ltd 10 Nov 1969 [12 Nov 1968] 53629/68 Heading G1A [Also in Division G3] A line tracing apparatus includes a rotatable tracer head incorporating two offset photoelectric devices, which oscillate across a line being followed and produce displacement and orientation signals, wherein the amplitude of the displacement signal is used to slow down the movement of the tracer head. As shown, a line tracing head 2 is rotated by a steering motor 10 on a carriage 12 traversed on a beam 14 by a motor 16. The beam 14 is driven along rails 20 by a motor 28. The head 2 incorporates two photo-cells which are oscillated in unison across a line on a platen 30. The steering photo-cell controls the motor 10 and the displacement photo-cell which is mounted on the rotational axis of the head, controls the motors 16, 28 through a resolver 34. The displacement photo-cell is employed to slow-down the speed of travel of the tracer head at sharp bends by reducing the voltages applied to the resolver windings as a function of the photocell output voltage or to a pre-set value at a threshold value of the output voltage.
GB1296673D 1968-11-12 1968-11-12 Expired GB1296673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5362968 1968-11-12

Publications (1)

Publication Number Publication Date
GB1296673A true GB1296673A (en) 1972-11-15

Family

ID=10468474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1296673D Expired GB1296673A (en) 1968-11-12 1968-11-12

Country Status (4)

Country Link
DE (1) DE1956657A1 (en)
ES (1) ES373413A1 (en)
GB (1) GB1296673A (en)
SE (1) SE362600B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2007960A6 (en) * 1988-07-12 1989-07-01 Ona Electro Erosion Two dimensional generating system for the geometry of a model using artificial vision

Also Published As

Publication number Publication date
DE1956657A1 (en) 1970-06-11
ES373413A1 (en) 1972-02-01
SE362600B (en) 1973-12-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee