FR2267848A1 - Numerically controlled screw cutting slide lathe - has two drive screws with selective blocked guide nuts - Google Patents

Numerically controlled screw cutting slide lathe - has two drive screws with selective blocked guide nuts

Info

Publication number
FR2267848A1
FR2267848A1 FR7413744A FR7413744A FR2267848A1 FR 2267848 A1 FR2267848 A1 FR 2267848A1 FR 7413744 A FR7413744 A FR 7413744A FR 7413744 A FR7413744 A FR 7413744A FR 2267848 A1 FR2267848 A1 FR 2267848A1
Authority
FR
France
Prior art keywords
nut
selective
numerically controlled
drive screws
screw cutting
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.)
Withdrawn
Application number
FR7413744A
Other languages
French (fr)
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.)
Cri Dan SA
Original Assignee
Cri Dan SA
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 Cri Dan SA filed Critical Cri Dan SA
Priority to FR7413744A priority Critical patent/FR2267848A1/en
Publication of FR2267848A1 publication Critical patent/FR2267848A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B23B3/06—Turning-machines or devices characterised only by the special arrangement of constructional units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G3/00—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle
    • B23G3/06—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle for compensating inaccuracies in the pitch of the lead-screw
    • 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
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Transmission Devices (AREA)

Abstract

The lathe has a headstock (1), a mandrel (2) and a bed (3) on which slides a carriage (4). A transverse slide is mounted on the carriage. Positional speed control is through a single motor (6) and a coder (7) operating synchronously, through equal gears (8, 9), the two parallel master screws (10, 11). One screw (10) engages with a non-rotating nut (12). The other screw (11) engages a second nut (14), also non-rotating. Each nut can move in a bore provided around it and may be locked against the carriage by means of a double acting hydraulic cylinder (16) mounted between both nuts selectively forcing a nut into a blocked position in the bores.
FR7413744A 1974-04-19 1974-04-19 Numerically controlled screw cutting slide lathe - has two drive screws with selective blocked guide nuts Withdrawn FR2267848A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7413744A FR2267848A1 (en) 1974-04-19 1974-04-19 Numerically controlled screw cutting slide lathe - has two drive screws with selective blocked guide nuts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7413744A FR2267848A1 (en) 1974-04-19 1974-04-19 Numerically controlled screw cutting slide lathe - has two drive screws with selective blocked guide nuts

Publications (1)

Publication Number Publication Date
FR2267848A1 true FR2267848A1 (en) 1975-11-14

Family

ID=9137878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7413744A Withdrawn FR2267848A1 (en) 1974-04-19 1974-04-19 Numerically controlled screw cutting slide lathe - has two drive screws with selective blocked guide nuts

Country Status (1)

Country Link
FR (1) FR2267848A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189018A1 (en) * 1985-01-22 1986-07-30 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Gesellschaft m.b.H. Milling machine for working crank shafts, etc.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189018A1 (en) * 1985-01-22 1986-07-30 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Gesellschaft m.b.H. Milling machine for working crank shafts, etc.

Similar Documents

Publication Publication Date Title
GB1036675A (en) Spindle bearing preload assembly
US3796116A (en) Machine with tailstock
GB1305602A (en)
FR2267848A1 (en) Numerically controlled screw cutting slide lathe - has two drive screws with selective blocked guide nuts
GB1314306A (en) Multiple spindle automatic lathe
US4245938A (en) Device for positioning a tool carriage
US3448643A (en) Tool slide control for lathes,cutoff machines and the like
GB1506448A (en) Indexing mechanisms and machine tools incorporating the same
GB1136559A (en) Cutting stroke adjusting mechanism
GB714456A (en) Improvements in and relating to clamping sliding members to the slideways in machinetools
US2947223A (en) Gear machine or the like
GB1074409A (en) Improvements in or relating to hydraulic positioning apparatus
GB983028A (en)
US2092202A (en) Cutting device
US3315550A (en) Cutting-off lathe with opposed synchronized tool slides
US4065109A (en) Torch cutting machine and drive control arrangement therefor
GB1308172A (en) Machine tools
US2425543A (en) Apparatus for carving propeller blades
US2559089A (en) Pattern controlled machine tool
GB1182135A (en) Improvements in or relating to Machine Tools
US3012545A (en) Machines
GB1021766A (en) Method and machine for grinding a toothed wheel
GB1238051A (en)
US2737073A (en) Tailstock actuating device
GB1264296A (en)

Legal Events

Date Code Title Description
ST Notification of lapse