GB909398A - Screw-cutting lathe - Google Patents

Screw-cutting lathe

Info

Publication number
GB909398A
GB909398A GB2935658A GB2935658A GB909398A GB 909398 A GB909398 A GB 909398A GB 2935658 A GB2935658 A GB 2935658A GB 2935658 A GB2935658 A GB 2935658A GB 909398 A GB909398 A GB 909398A
Authority
GB
United Kingdom
Prior art keywords
saddle
feeler
screw
driven
lathe
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
GB2935658A
Inventor
Ruben Hadekel
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.)
Sperry Gyroscope Co Ltd
Original Assignee
Sperry Gyroscope Co Ltd
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 Sperry Gyroscope Co Ltd filed Critical Sperry Gyroscope Co Ltd
Priority to GB2935658A priority Critical patent/GB909398A/en
Priority to FR804776A priority patent/FR1245605A/en
Priority to BE582616A priority patent/BE582616A/en
Publication of GB909398A publication Critical patent/GB909398A/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
    • B23Q35/121—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using mechanical sensing
    • B23Q35/123—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using mechanical sensing the feeler varying the impedance in a circuit
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/36—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission in which a servomotor forms an essential element

Landscapes

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

Abstract

909,398. Electric copying machines. SPERRY GYROSCOPE CO. Ltd. Aug. 21, 1959 [Sept. 12, 1958], No. 29356/58. Class 38 (6). [Also in Group XXII] A lathe is provided with a feeler-member 15 arranged to be moved along a path parallel to the lathe bed in accordance with the rotation of the work-spindle 5, and an electrical device 10 having one part 11 fixed relative to the saddle and another part 13 movable relative thereto by the feeler-member, the saddle being movable along the bed by a motor 2 arranged to be controlled from the electrical device to maintain its two parts in a predetermined relationship. One saddle 1 is driven by an hydraulic motor 2 which drives through gearing a pinion 20 co-operating with a rack 21. Hydraulic fluid is supplied from a source 6 through an electro-hydraulic control valve 7. The latter is operated by an electrical copying device 10 carried by an adjustable support 11 attached to the saddle. The feeler-member 15 biased by a spring 17 forms part of the copying device and this is adapted to engage a pilot lead-screw 3. The lead-screw is driven from the headstock spindle 5 through change-gears 4. A switch 51 enables an additional " velocity-error " signal described in Specification 29351/58 (referred to in the Provisional Specification) to be applied to the arrangement.
GB2935658A 1958-09-12 1958-09-12 Screw-cutting lathe Expired GB909398A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2935658A GB909398A (en) 1958-09-12 1958-09-12 Screw-cutting lathe
FR804776A FR1245605A (en) 1958-09-12 1959-09-10 Thread cutting lathe
BE582616A BE582616A (en) 1958-09-12 1959-09-12 Thread cutting lathe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2935658A GB909398A (en) 1958-09-12 1958-09-12 Screw-cutting lathe

Publications (1)

Publication Number Publication Date
GB909398A true GB909398A (en) 1962-10-31

Family

ID=10290225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2935658A Expired GB909398A (en) 1958-09-12 1958-09-12 Screw-cutting lathe

Country Status (3)

Country Link
BE (1) BE582616A (en)
FR (1) FR1245605A (en)
GB (1) GB909398A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275416A (en) * 1961-03-06 1900-01-01

Also Published As

Publication number Publication date
BE582616A (en) 1959-12-31
FR1245605A (en) 1960-11-10

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