GB950477A - Improved device for correcting the pitch of lead screws in screw-cutting machines - Google Patents

Improved device for correcting the pitch of lead screws in screw-cutting machines

Info

Publication number
GB950477A
GB950477A GB39569/60A GB3956960A GB950477A GB 950477 A GB950477 A GB 950477A GB 39569/60 A GB39569/60 A GB 39569/60A GB 3956960 A GB3956960 A GB 3956960A GB 950477 A GB950477 A GB 950477A
Authority
GB
United Kingdom
Prior art keywords
screw
carriage
lead
correcting
pitch
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
GB39569/60A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB950477A publication Critical patent/GB950477A/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
    • B23Q23/00—Arrangements for compensating for irregularities or wear, e.g. of ways, of setting mechanisms
    • 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
    • Y10T82/00—Turning
    • Y10T82/20—Lathe for screw cutting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

950,477. Screw-cutting lathes. P. F. DE VALLIERE. Nov. 17, 1960 [Nov. 20, 1959], No. 39569/60. Heading B3T. A screw-cutting lathe has a carriage 1, Fig. 1, driven by lead-screw 3, the nut 2 for which is rotatable and controlled by a cam 15 through feeler 13 for correcting pitch errors. The cam is formed of flexible strips 16, Fig. 3, and may be adjusted by jack members bearing on a bar 19 fixed parallel to the carriage guides. A cylindrical drum 9, Fig. 1, driven in unison with the lead-screw is engraved with a spiral which may be sighted through a microscope device 11, 12, fixed to the carriage, to obtain the true carriage position. The drum may be dispensed with and the spiral engraved on the tops of the threads of the lead-screw. An automatic optical control system is referred to.
GB39569/60A 1959-11-20 1960-11-17 Improved device for correcting the pitch of lead screws in screw-cutting machines Expired GB950477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR810732A FR1250503A (en) 1959-11-20 1959-11-20 Method for correcting the pitch of a lead screw of a threading machine and apparatus allowing the implementation of this method

Publications (1)

Publication Number Publication Date
GB950477A true GB950477A (en) 1964-02-26

Family

ID=8721551

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39569/60A Expired GB950477A (en) 1959-11-20 1960-11-17 Improved device for correcting the pitch of lead screws in screw-cutting machines

Country Status (5)

Country Link
US (1) US3130617A (en)
CH (1) CH365927A (en)
DE (1) DE1285848B (en)
FR (1) FR1250503A (en)
GB (1) GB950477A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270421A (en) * 1979-03-22 1981-06-02 The United States Of America As Represented By The United States Department Of Energy Apparatus for correcting precision errors in slide straightness in machine tools

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE420427C (en) * 1925-10-24 Friedrich Senkbeil Lifting curve for rear turning devices
DE244342C (en) *
US301165A (en) * 1884-07-01 Apparatus for cutting screws
US1347789A (en) * 1918-02-15 1920-07-27 Pratt & Whitney Co Lead-varying mechanism
DE681511C (en) * 1935-06-25 1939-09-25 Askania Werke Akt Ges Curve made of elastic steel band
DE673659C (en) * 1936-11-16 1939-03-25 Herbert Lindner Fa Device for compensating for feed fluctuations in a slide of machine tools driven by a lead screw spindle, in particular in turning jaws and grinding machines, for the production of threaded sockets
DE678515C (en) * 1938-06-11 1939-07-17 Herbert Lindner Fa Device for compensating for feed fluctuations in a slide of machine tools driven by a lead screw spindle, in particular in turning jaws and grinding machines for the production of threaded workpieces
US2169159A (en) * 1938-06-11 1939-08-08 Moller Georg Means for accurate screw cutting
GB665582A (en) * 1949-11-12 1952-01-23 Craven Brothers Manchester Ltd Improvements relating to the production of precision screws
DE841536C (en) * 1950-03-05 1952-08-14 Alex Geiger Adjustable guide curve, especially for longitudinal copying on copy milling and turning machines
US2916931A (en) * 1951-08-02 1959-12-15 Bosch Arma Corp Motor control system for automatic machine tools
US2811085A (en) * 1955-06-10 1957-10-29 Mcdonnell Aircraft Corp Form block shaping and bevel angle cutting machine

Also Published As

Publication number Publication date
US3130617A (en) 1964-04-28
DE1285848B (en) 1968-12-19
FR1250503A (en) 1961-01-13
CH365927A (en) 1962-11-30

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