GB1402616A - Tracer tangential velocity control system - Google Patents

Tracer tangential velocity control system

Info

Publication number
GB1402616A
GB1402616A GB3406172A GB3406172A GB1402616A GB 1402616 A GB1402616 A GB 1402616A GB 3406172 A GB3406172 A GB 3406172A GB 3406172 A GB3406172 A GB 3406172A GB 1402616 A GB1402616 A GB 1402616A
Authority
GB
United Kingdom
Prior art keywords
stylus
signals
velocity
control
signal
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
GB3406172A
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.)
GETTYS Manufacturing CO Inc
Original Assignee
GETTYS Manufacturing CO 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 GETTYS Manufacturing CO Inc filed Critical GETTYS Manufacturing CO Inc
Priority to GB3406172A priority Critical patent/GB1402616A/en
Publication of GB1402616A publication Critical patent/GB1402616A/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
    • B23Q35/14—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means controlling one or more electromotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Copy Controls (AREA)

Abstract

1402616 Automatic electric control of template tracer stylus velocity GETTYS Mfg CO Inc 20 July 1972 34061/72 Heading G3N In a template tracing system the stylus velocity is controlled by co-ordinate control voltages produced by stylus deflection and these voltages are modified to make the tangential velocity (tracing speed) of the stylus equal a predetermined value. As shown, the stylus deflection signals are applied to a motor control circuit 12 to control the co-ordinate drive motors 10A, 10B in the usual way. A multiplier is included within the control circuit where the control signals are multiplied by the tangential velocity correction signal M. Tachometers 14A, 14B provide signals representing the co-ordinate velocity signals VA, VB in magnitude and these D.C. signals are modulated at a reference frequency, e.g. 1000 Hz, in modulators 17A, 17B with the output of modulator 17A phase shifted by 90 degrees. These signals V'A, VB are added at 22 to produce velocity vector V which is filtered at 23. Demodulator 24 is supplied with an A.C. signal representative of the actual deflection of the stylus P so that a D.C. signal output is produced which is proportional to the magnitude of the tangential velocity (Vt) of the stylus. This voltage is compared in comparator 27 with a signal representing the desired tracing speed to provide an error signal which after integration, by a capacitor or by a motor driven potentiometer arrangement, is used to modify the motor control signals.
GB3406172A 1972-07-20 1972-07-20 Tracer tangential velocity control system Expired GB1402616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3406172A GB1402616A (en) 1972-07-20 1972-07-20 Tracer tangential velocity control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3406172A GB1402616A (en) 1972-07-20 1972-07-20 Tracer tangential velocity control system

Publications (1)

Publication Number Publication Date
GB1402616A true GB1402616A (en) 1975-08-13

Family

ID=10360887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3406172A Expired GB1402616A (en) 1972-07-20 1972-07-20 Tracer tangential velocity control system

Country Status (1)

Country Link
GB (1) GB1402616A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027339A1 (en) * 1989-08-29 1991-03-14 Mitutoyo Corp METHOD AND DEVICE FOR MEASURING CONTROL OF A COORDINATE MEASURING PROBE WITH A TURNTABLE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027339A1 (en) * 1989-08-29 1991-03-14 Mitutoyo Corp METHOD AND DEVICE FOR MEASURING CONTROL OF A COORDINATE MEASURING PROBE WITH A TURNTABLE
GB2237661A (en) * 1989-08-29 1991-05-08 Mitutoyo Corp Copy controlling using coordinate measuring probe with rotary table
US5204824A (en) * 1989-08-29 1993-04-20 Mitutoyo Corporation Method of and apparatus for copy controlling coordinate measuring probe with rotary table
GB2237661B (en) * 1989-08-29 1994-02-09 Mitutoyo Corp Method of and apparatus for copy controlling coordinate measuring probe with rotary table
DE4027339C2 (en) * 1989-08-29 2002-10-31 Mitutoyo Corp Method and device for measuring control of a coordinate sensor with a rotary table

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Legal Events

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