US2693731A - Feeding device for the carriage of lathes and turret lathes - Google Patents

Feeding device for the carriage of lathes and turret lathes Download PDF

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Publication number
US2693731A
US2693731A US227363A US22736351A US2693731A US 2693731 A US2693731 A US 2693731A US 227363 A US227363 A US 227363A US 22736351 A US22736351 A US 22736351A US 2693731 A US2693731 A US 2693731A
Authority
US
United States
Prior art keywords
lathes
lever
carriage
hand
worm
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 - Lifetime
Application number
US227363A
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English (en)
Inventor
Mobius Walter
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.)
DMG Mori AG
Original Assignee
Gildemeister 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 Gildemeister AG filed Critical Gildemeister AG
Application granted granted Critical
Publication of US2693731A publication Critical patent/US2693731A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
    • 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
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5152—Plural diverse manufacturing apparatus including means for metal shaping or assembling with turret mechanism
    • Y10T29/5154—Plural diverse manufacturing apparatus including means for metal shaping or assembling with turret mechanism tool turret
    • Y10T29/5163—Rack-and-pinion operated
    • 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
    • Y10T409/304536—Milling including means to infeed work to cutter
    • 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
    • Y10T82/25—Lathe
    • Y10T82/2531—Carriage feed
    • Y10T82/2537—Apron mechanism
    • 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
    • Y10T82/25—Lathe
    • Y10T82/2531—Carriage feed
    • Y10T82/2547—Change gears

Definitions

  • a main feature of the invention is the connection of the hand wheel and particularly of the hand levers with a drop Worm which is driven by the shaft of the feeding device instead of the toothed gear used hitherto. That drop worm will be engaged to a worm gear located on the axis of the hand wheel or the hand levers, if that control part is moved in the direction away from the lathe. That arrangement guarantees a throwing into gear of the automatic feed device instantly and without difiiculties. An unintentional engaging of these parts cannot occur because the hand lever must always be moved in the direction away from the lathe, if the automatic feed devices shall be engaged.
  • Another advantage is the possibility to disengage the automatic feed device by an adjustable block on the carriage.
  • Fig. l is a section through the manual engaging device
  • Fig. 2 is a section through the lower part of the device to line EE of Fig. 1;
  • Fig. 3 is a detail
  • Fig. 4 is another section through the manual engaging device.
  • Fig. 5 is a detail.
  • the hollow axis 2 is rotating in the casing 1 and carries on its end directed towards the lathe a pinion 4 which engages the gear rack of the carriage (not shown in the drawings).
  • a hub 5 is located on the other end of the axis which carries inside the casing a worm gear 3.
  • the driving shaft 7 for the automatic feed device is rotating in bearings on the casing 1 below the hollow axis 2.
  • a drop worm 9 is driven by the shaft '7 by means of pinions 8.
  • the axis 10 of the drop worm 9 is located in arms 11 which are swinging around the shaft 7 to throw the drop worm in and out of gear with the worm gear 3.
  • the up or down movement of the drop worm 9 is exerted by the moving of the hand levers 6.
  • These levers are located in the hub 5 and they form together the hand wheel which is used for the hand feeding mechanism.
  • the hand levers 6 are fixed in holders 12 which are turnable around the bolts 13 located with their axis transverse to axis 2. Therefore the holders can be moved in planes parallel and radial to the axis 2.
  • the hand levers 6 have on their inner ends thumbs 14 which engage into the annular groove 15 of a disc 16, fixed on the end of a sliding bar 17 located in the hollow axis 2.
  • a disc ring 19 is sliding on the axis 2 under the influence of a pressure spring 18; the hub 19 of the disc ring 19 carries a Wedge 21 which is movable in the longitudinal 6 Claims.
  • One of the arms 11 is provided with a thumb 22 laying against the disc ring 19 and on the other hand with a nose 23 engaging a recess 24 of the blocking lever 25 movable on the axis 26. Thereby the drop worm 9 remains in contact with the worm gear 3 by blocking the arms 11 in their uppermost position.
  • the blocking lever 25 has a plug 27 which contacts a disc 29 in an annular recess 28 of the worm gear 9.
  • Stay bolts 30 are fixed in the disc 29, and the stay bolts reach through bored holes in the worm gear 3 contacting the disc ring 19.
  • the stay bolts 39 are surrounded by pressure springs 31 to ensure that contact.
  • the drop worm 9 is located in its out position on the floor of the casing 1 and it is held there by a tension spring 32 which is fixed on the arm 11. That is the position in which the feed can be exerted by hand by turning the hand wheel. If a change to the automatic feed shall take place, then one of the levers 6 must be turned in the direction of the arrow C (Fig. l), to move the disc ring 19 against the pressure spring 18. By that displacement thumb 22 and the arms 11 are moved in the direction of the arrow D, so that the nose 23 engages the recess 24 in the blocking lever 25. In that moment the drop worm 9 engages and drives the worm gear 3. That position is locked by the extension spring 34 on the lever 33 which is turnable around the bolt 26 of the blocking lever 25, as it is shown in Fig. 4. The other end of the extension spring 34 is fixed on the bolt 36.
  • the disengaging of the automatic feed device is exerted by hand by turning the hand lever 6 contrary to the direction of the arrow C (Fig. 1), so that the disc ring 19 is moved in the direction of the gear wheel 3.
  • the stay bolts 30 follow that movement and therefore the blocking lever 25 releases the nose 23 and the drop worm falls down to the bottom. That retract is aided by the tension spring 32.
  • the disengaging of the automatic feed device of the carriage can also be exerted by a block adjustably mounted on the lathe bed in a usual way.
  • the two-armed lever 35 is turnable around the bolt 36.
  • One arm of the lever 35 has an inclined gliding surface 37 attached to the roll 38 on the free end of the lever 33, as it is shown in Figs. 4 and 5.
  • the other end of the lever 35 is formed to a fork 39 which embraces the block 42, adjustable on the rod 40 under the pressure of a spring 41.
  • the block 42 is moved contrary to the tension of the spring 41, so that the two-armed lever 35 is turned, thereby the gliding surface 37 gives free the roll 38, the lever 33 is turned and therefore the nose 23 is disengaged.
  • the nose 23 lets fall the drop worm 9 and the worm gear 3 is stopped.
  • the hand levers 6 are fixed in the holders 12 by clamping screws 43.
  • the levers 6 can be taken out of their holders by loosening the clamping screws, which is expedient for the transport of the machine.
  • the hub 5 and the holders 12 are secured by a cap 44, which is held in its position by screws or wire snaps.
  • the bottom of the casing 1 is formed as an oiling bath into which the drop worm immerses, to secure a good lubrication of the gear.
  • a feeding device for the carriage of lathes and turret lathes provided with means for hand feed and power feed, a casing fixed on said lathe, a driving shaft journalled in said casing, a drop worm operatively connected to said driving shaft, arms turnable on said driving shaft and carrying said drop worm, a hollow shaft iournalled in said casing, a pinion fixed at the free end of said hollow shaft to drive said carriage, the axis of said hollow shaft being directed vertically to the axis of said driving shaft, a Worm gear fixed on saidhollow shaft, a bar slidingly located inside of said hollow shaft, at least one hand lever connected with said slide bar and with said;hollow shaft and. means operatively connected to said slide bar and to said turnable. arms: to disengage said drop worm: from said worm gear by; a movement of. said hand lever in the direction towards'the: lathe.
  • a hub fastened? to said. casing a holder. embracing said. hand lever, a bolt fixed in said holder. and journalled in said hub, the axis of said bolt extending; vertically to said hollow shaft, a disc. ring; slidably located: on said. hollow shaft and being connected. to said slide bar, anose fastened on said turnable arms, a. blocking lever for said nose operatively connected. with. said disc: ring. to transmit the movement of; said hand lever' to said blocking lever.
  • a feeding device in a, feeding device. according to claim 2; longitudi'nal' slots in said hollow shaft, a wedge. movable in said slots and being connected with said slide bar andsaid disc ring, a spring located on said hollow shaft. and adapted to be pressed against said di'sc; ring, displaceable stay bolts. carried by said Worm gear and being; in contact with said disc: ring, a recess in said worm gear, an annular disc located in said recess and being. in contactwithsaid stay bolts, said blocking lever beingin contact with said annular disc, arecess insaid blocking lever. to support said nose in the engaging position of said drop worm with said worm gear.
  • a. lever connected with said blocking lever, a. roll attachedv to the free end of said lever, a two-armedal'ever: rotatably journalled in said casing and having a gliding surface contacting said roll, adjustable block provided on the other arm. of said two-armed lever, a spring contacting said block and being located in the way of said carriage to disengage automatically-the blocking. position of said drop worm with said worm gear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Transmission Devices (AREA)
US227363A 1950-05-02 1951-05-01 Feeding device for the carriage of lathes and turret lathes Expired - Lifetime US2693731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE295165X 1950-05-02

Publications (1)

Publication Number Publication Date
US2693731A true US2693731A (en) 1954-11-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
US227363A Expired - Lifetime US2693731A (en) 1950-05-02 1951-05-01 Feeding device for the carriage of lathes and turret lathes

Country Status (4)

Country Link
US (1) US2693731A (de)
CH (1) CH295165A (de)
FR (1) FR1042923A (de)
GB (1) GB695412A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934974A (en) * 1957-10-21 1960-05-03 Warner Swasey Co Feed mechanism having a manual override
US3008155A (en) * 1957-05-01 1961-11-14 Tsuda Masao Drilling and thread cutting machine
US3102445A (en) * 1959-07-16 1963-09-03 Martin D Elledge Lathe tool holding and operating attachment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US801012A (en) * 1904-02-16 1905-10-03 Chapman Valve Mfg Co Disconnecting mechanism.
US939043A (en) * 1908-02-06 1909-11-02 Charles L Libby Feed for lathes.
US1026595A (en) * 1911-01-03 1912-05-14 Rockford Drilling Machine Co Feeding attachment for drill-spindles.
US1027496A (en) * 1911-07-22 1912-05-28 Fitchburg Machine Works Lathe.
US1071539A (en) * 1913-04-10 1913-08-26 Kokomo Nail And Brad Company Feed mechanism for drill-presses.
DE688275C (de) * 1938-02-25 1940-02-16 Hermann Schoening Bohrmaschine, insbesondere Radialbohrmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US801012A (en) * 1904-02-16 1905-10-03 Chapman Valve Mfg Co Disconnecting mechanism.
US939043A (en) * 1908-02-06 1909-11-02 Charles L Libby Feed for lathes.
US1026595A (en) * 1911-01-03 1912-05-14 Rockford Drilling Machine Co Feeding attachment for drill-spindles.
US1027496A (en) * 1911-07-22 1912-05-28 Fitchburg Machine Works Lathe.
US1071539A (en) * 1913-04-10 1913-08-26 Kokomo Nail And Brad Company Feed mechanism for drill-presses.
DE688275C (de) * 1938-02-25 1940-02-16 Hermann Schoening Bohrmaschine, insbesondere Radialbohrmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008155A (en) * 1957-05-01 1961-11-14 Tsuda Masao Drilling and thread cutting machine
US2934974A (en) * 1957-10-21 1960-05-03 Warner Swasey Co Feed mechanism having a manual override
US3102445A (en) * 1959-07-16 1963-09-03 Martin D Elledge Lathe tool holding and operating attachment

Also Published As

Publication number Publication date
CH295165A (de) 1953-12-15
GB695412A (en) 1953-08-12
FR1042923A (fr) 1953-11-04

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