GB460791A - Improvements in feeler control devices for controlling feed movements in machine tools - Google Patents

Improvements in feeler control devices for controlling feed movements in machine tools

Info

Publication number
GB460791A
GB460791A GB26987/35A GB2698735A GB460791A GB 460791 A GB460791 A GB 460791A GB 26987/35 A GB26987/35 A GB 26987/35A GB 2698735 A GB2698735 A GB 2698735A GB 460791 A GB460791 A GB 460791A
Authority
GB
United Kingdom
Prior art keywords
feeler
lever
shutter
nozzles
copying
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
GB26987/35A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB460791A publication Critical patent/GB460791A/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
    • B23Q35/24—Feelers; Feeler units
    • B23Q35/26—Feelers; Feeler units designed for a physical contact with a pattern or a model
    • B23Q35/30—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system
    • B23Q35/34—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system in which the feeler varies an electrical characteristic in a circuit, e.g. capacity, frequency
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303416—Templet, tracer, or cutter
    • Y10T409/303472—Tracer
    • Y10T409/303528—Adapted to trigger electrical energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Copy Controls (AREA)
  • Scissors And Nippers (AREA)
  • Automatic Control Of Machine Tools (AREA)

Abstract

460,791. Electric control systems. SIEMENS - SCHUCKERTWERKE AKT.- GES. Sept. 30, 1935, No. 26987. Convention date, Oct. 2, 1934. [Class 40 (i)] In a feeler control device for controlling the feed motions between the cutter and work in machine tools, and particularly adaptable for copying-lathes and copying milling-machines a nozzle bolometer of known form is operated by the feeler and is utilized to produce electric control impulses for controlling the feed motions. As applied to a copying-lathe or milling-machine, the feeler 1 which contacts with the pattern is mounted by means of a semi-spherical part 2 in a casing 3 attached to a base 19 which may be secured to the sliderest &c. of the machine. A ball 4 at the rear end of the feeler engages a spherical recess 5 in a lever 20 pivoted at 6 on a bracket 21 secured to the base 19. A second arm 10 on the lever 20 carries a shutter 11 for co-operating with two nozzles 12, 13 of a nozzle bolometer, which consists of two heated branches of a temperature-sensitive electric bridge circuit which are normally cooled by two currents of air from the nozzles, the air currents being of equal amount in the neutral or zero condition of the apparatus. Oscillation of the lever 20 by pressure of the pattern on the feeler causes the shutter 11 to obstruct one or other of the nozzles by a variable amount, thus cutting down one of the air currents and varying the resistance of the corresponding branch of the bridge. The electric impulses so produced are used to operate an electric discharge rectifier having one or more control electrodes, which in turn controls the feed mechanism, such as magnetic couplings. A spring 8 biasses the lever 20 in a clockwise direction and stops 15, 16 limit the movements of the shutter 11. Damping means for the control may be provided to reduce the frequency with which changes of feed are effected. The arm 10 and shutter may be adjusted relatively to the lever 20 by means of a slot and screw 18.
GB26987/35A 1934-10-02 1935-09-30 Improvements in feeler control devices for controlling feed movements in machine tools Expired GB460791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE460791X 1934-10-02

Publications (1)

Publication Number Publication Date
GB460791A true GB460791A (en) 1937-02-04

Family

ID=6539785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26987/35A Expired GB460791A (en) 1934-10-02 1935-09-30 Improvements in feeler control devices for controlling feed movements in machine tools

Country Status (2)

Country Link
US (1) US2046013A (en)
GB (1) GB460791A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012799B (en) * 1953-07-08 1957-07-25 Heid Ag Maschf Sensor for electrically controlled post-forming machines

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484553A (en) * 1944-10-02 1949-10-11 Gen Motors Corp Duplicating machine
GB859474A (en) * 1957-11-19 1961-01-25 Frederick William Armytage Improvements in or relating to tracers for machine tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012799B (en) * 1953-07-08 1957-07-25 Heid Ag Maschf Sensor for electrically controlled post-forming machines

Also Published As

Publication number Publication date
US2046013A (en) 1936-06-30

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