GB791016A - Improvements in feed mechanisms for the sliding supports of machine tools and the like - Google Patents

Improvements in feed mechanisms for the sliding supports of machine tools and the like

Info

Publication number
GB791016A
GB791016A GB29189/55A GB2918955A GB791016A GB 791016 A GB791016 A GB 791016A GB 29189/55 A GB29189/55 A GB 29189/55A GB 2918955 A GB2918955 A GB 2918955A GB 791016 A GB791016 A GB 791016A
Authority
GB
United Kingdom
Prior art keywords
feed screw
feed
slide
rotatable
sleeve
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
GB29189/55A
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.)
Johanssons Press & Hejarverkty
Original Assignee
Johanssons Press & Hejarverkty
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 Johanssons Press & Hejarverkty filed Critical Johanssons Press & Hejarverkty
Publication of GB791016A publication Critical patent/GB791016A/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
    • 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
    • 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
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/10—Feeding members carrying tools or work
    • B23Q2705/18—Feeding other members supporting tools also feeding working spindles supports
    • B23Q2705/182—Feeding other members supporting tools also feeding working spindles supports in lathes

Abstract

791,016. Machine-tool details. AKTIE-BOLAGET JOHANSSONS PRESS- & HEJARVERKTYG. Oct. 13, 1955 [Oct. 22; 1954], No. 29189/55. Class 83 (3). Feed mechanism for the slide of a machine tool comprises an externally-threaded feed screw arranged for axial but non-rotatable movement relative to a frame part, an internally threaded, axially displaceable and rotatable inner member engaging the threads of the feed screw, a first feeding device connected to the inner member to rotate it, an outer non-rotatable axially-slidable sleeve connected with the inner member for axial movement therewith, and a second feeding device connected to said outer sleeve for effecting axialmovement thereof and hence axial displacement of the inner member and feed screw. The first feed device, for hand operation, comprises a handwheel 1 and shaft 3 rotating a gear 5 through a pinion 4. The gear 5 consists of a hollow bush with a key 6 engaging a bush 7 secured by a nut 8 to a first sleeve nut 9. The latter engages for a part of its length with a non-rotatable feed screw 24. This feed screw is splined at its forward end to a part of the frame on which the table 43 slides, and its rear end is secured to a piston sliding in an hydraulic cylinder forming part of the slide. The piston and cylinder are used to effect a rapid traverse of the slide. The second automatic feeding arrangement comprises a driven transverse worm shaft 28 (a rack may be used), which rotates a nut 13 having a ball thread connection with an outer non-rotatable sleeve 12. The latter is moved axially and thus, through ballthrust-bearing 11, moves the inner sleeve 9 and feed screw 24 axially to feed the slide. Gauging.-A dial gauge 33 indicates movement of the outer sleeve 12, and thus slide movements, during automatic feed. Preventing backlash.-Play between the moving parts of the system is taken up by a spring 19, acting between a thrust-bearing 21 on bushing 23 screwed to feed screw 24 and the frame.
GB29189/55A 1954-10-22 1955-10-13 Improvements in feed mechanisms for the sliding supports of machine tools and the like Expired GB791016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE791016X 1954-10-22

Publications (1)

Publication Number Publication Date
GB791016A true GB791016A (en) 1958-02-19

Family

ID=20339514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29189/55A Expired GB791016A (en) 1954-10-22 1955-10-13 Improvements in feed mechanisms for the sliding supports of machine tools and the like

Country Status (1)

Country Link
GB (1) GB791016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217602A (en) * 1960-12-27 1965-11-16 Nat Broach & Mach Gear finishing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217602A (en) * 1960-12-27 1965-11-16 Nat Broach & Mach Gear finishing machine

Similar Documents

Publication Publication Date Title
US2564180A (en) Screw and nut gearing
GB1220698A (en) A machine tool with a mechanism for driving the spindle
US3311003A (en) Facing head attachment and drive mechanism therefor
GB1108641A (en) Boring quill
US3389413A (en) Single spindle tap unit
US3932961A (en) Grinding machine
GB791016A (en) Improvements in feed mechanisms for the sliding supports of machine tools and the like
US2760397A (en) Precision adjustment means for power machines
US2131129A (en) Cross feed mechanism for lathes
US2804781A (en) Gearing for machine tools and the like
US4068547A (en) Tail stock
US3018697A (en) Counterbalance control device
DE703490C (en) Machine tool, in particular lathe or grinding machine, for producing high-precision threads
US2239259A (en) Machine tool
US3383958A (en) Boring or drilling machine
US2686448A (en) Hydraulic screw feed
US2059091A (en) Backlash compensator for machine tools
US2002991A (en) Backlash remover
US2882741A (en) Sliding support with two feeding mechanisms independent of each other
US2155707A (en) Compound rest for lathes
US2640376A (en) Boring machine
US3120141A (en) Taper attachments for lathes
US2300363A (en) Work-positioning and backlash compensating device for machine tools
US2499152A (en) Control mechanism for machine tools
USRE29531E (en) Grinding machine