US1017859A - Stop mechanism for turret-lathes. - Google Patents

Description

H. DRESES.

STOP MBGHANISM FOR TURRET LATHES.

Arrmonlol funn we. o, 1911.

1,017,859; Patented Feb. 2o, 1912.

. 3 SHEETS-SHEET l.

H'. DRESES.

STOP MEGHANIBM FOR TURBBT LT'HEB.

` uruoulolr FILED .umm-1911.v

' Patented Feb. 20, 1912.

3 SHEETS-SHEET B.

H. DRESES. STOP MECHANISM POR TURRBT LATHES.

APPLIoATIoN FILED Amm. 1911.

1,017,859. Patented Feb.20,1912.

HENRY DRESES,

F CINCINNATI, OHIO.

STOP MECHANISM FOR TURRETLATHES.

Specification of Letters Patent. Application led August 9, 1911.

Patented Feb. 20, 1912. Serial No. 643,081.

To all whom 'it may concern:

Be it known that I, HENRY Danses, a citizen of the United States, and a resident of Cincinnati, Hamilton county, State of Ohio, have invented a certain new and Improved Stop Mechanism for Turret-Lathes; and T do declare the following to be a clear, full, and exact description of the invention, attention being called to the three sheets of drawings which accompany this application and form a part thereof.

This invention consists of certain means whereby in a turret-lathe the forward or fee -motion of the slide which carries the tool-holding turret is stopped at the proper time when the particular tool which acts at the time has done its work.

It also consists of means and connected devices whereby the turret-carrying slide, in case it is moved by power-feed, may be disconnected therefrom manually either at any time or automatically at certain predetermined times.

l'n the following specification and particularly pointed out in the claims at the end thereof will be found a full description of my invention, together with its operation, parts and construction, which latter is also illustrated in the accompanying three Sheets of drawings, in which Figure 1, is part of a side-elevation of a turret-lathe, showing the turret and adjacent parts of the lathe. Fig. 2, is a top-view of Fig. 1, with parts of it 1n horizontal section taken on line 22 of Fig. Fig. 3, is a vertical cross-section on line 3 3 of Fig. 1. Fig. 4, shows certain parts on that side of the lathe opposite to the side shown in Fig. 1, and fully explained hereinafter. -F ig. 5, is a vertical section on line 5 5 of Fig. 1. Fig. 6, is a detail View showing portions of Fig. l, also fully explained hereinafter. Fig. 7, is part of a view similar to the part shown in section in Fig. 2, it being a similar section taken slightly below the former section.

In the drawing, A indicates the turret mounted for rotation upon a slide B, which latter is fitted for longitudinal movement upon a carriage C. The turret is provided in its side with the usual number of sockets a adapted to receive tools, Sockets for six tools being shown. The proper position of the tool which operates at the time is secured by a bolt 8 while occupying one of six boltsockets 9 provided in the lower part of the turret. The position of the turret may be rendered more rigid by a locking handle 10 whereby it is tightened down on the slide.' Six pins shown at 1l project from the underside of the turret and constitute in conjunction with a spring-actuated dog 12, supported on carriage C, the indexlng device for the turret. When the slide with the turret is returned at the end of the forward feed movement, handle 10 having been eased oft', contact of one of these pins 11, with stationary member 12 causes a artial rotation of the turret so graduated 1t being oliesixth in this case as to brin another tool on the turret into proper positron for working.

This occurs during the latter part of this s return movement, the first part of it having caused a trip-device to become active to withdraw the spring-actuated locking bolt 8 to render such rotation possible. This trip-device consists of two complementary parts, one of which, part 13, is carried by the slide. The other part latter is supported on the lathe-bed D on which it is adjustable longitudinally and with reference to the work-holding chuck carried on the lathe-spindle it being adjusted in position according to the kind of work to be done and the Size thereof. After its position time being, it is locked in place and becomes a fixed support for slide B.

15 is a rack on the underside of the slide and 16 is a pinion in mesh with it. This pinion'is mounted upon a shaftl' supported in carriage C and by its rotation accordingly, the slide may be moved either forward, Vtoward the lathe-spindle, or away therefrom. Rotation may be had by hand by means of lever-handles 18 on one end of shaft 17, or by a power-actuated gearwheel 19 at its other end, operated by the power driven feed-shaft 20, actuated in the usual manner from the head-end of the lathe where one of its ends is supported.

Since none of the parts so far described are considered new, it is thought theyV have been explained and shown with suiiicient clearness for the purpose.

The other end of shaft 20 is support-ed in bearings 21 and carries a worm 22 which is in mesh with a worm-wheel 23 supported on a stud-shaft 24 which projects laterally 14 which co-acts4 `therewith is supported in carriage C. This has been determined for the Y from carriage C. There is also a inion 9.5 which rotates with the worm-wlieel and meshes with gear-wheel 19 on sha-ft 17.

When sliderB iste be moved by hand the power feed is cutout and this 1s done by dropping the worm out of mesh with the worm-wheel. See dot-ted position in Figs. Sand 4. 'For this purpose shaft-bearings 21-21 are rovided in connection with a 10. sliding brac et 27, fitted for vertical movement'upon a guide-wayV 28 provided on the rearside of carriage C. A limited portien of 011e edge of this bracket is -rovided with teeth to form a rack 29, which teeth are in engagement with a pinion on a rod 31 mounted in carriage By means of this Vpinion when rotated by rod 31 the bracket may raised Jfrom its dropped positionand it thereafter rotation et' this 20 rodi-sY levented, it serves also to hold the bracket laats-elevated positionV as shown in Figs. 3 and14to maintain the worm-gear in o Yrant-ive1connection. A handle 32 1s provided -attheAV other end of rod 31 for its manipulation Vfrom the front-side of the lathe. Y'U-heheh othis handle hasachec-k 33 and as longias this Vcheck is in engagement with,` that Yis supported by a shoulder 34, rotation of rodY 3l and of pinion 30 thereon prevented'and bracket 27 remains in its elevated position. See Fig. 6. YThis shoulder V.34Y Yistitu-ined within an opening contained infa bracket' supported to have a limited horizontal movement on a uide- 3 Yway 37 provided onY the front-side o carriage C.;V Ar Vspring Y38 recessedn in the bracket Yiserves to hold this latter nor- 1l against the hub of arm 32, which sshoulder 34 te a position in which y-support cheek 33 as soon as this israised above it by manipulacrflhand'le32'.V See Fig. 6. It will that-when bracket 36 is moved 'Y from-red 31,-checkr33 is deprived of Vportfbyfshoulder 34 and releases ro'd g 11`his'permits inion Softs; rotate and l Yori-bracket 2 thereby disconnecting rin-gear. A spring 39 recessed bethis bracket 27 and its guide-way tocause this drop to occur promptly. .actuation of bracket 36 to cut out the Y otion by power may be had by manua nperation 'at any time and automatically at'rpreelfetermined times. E :etsation manually is Y isndl pivotally carried enV bracket faT Yamst the hub of handle 3Q pusher? against this hub it will, by at its lower connected end. move tir-"away therefrom. This causes LVhitler.34 to move outY from below Vthereby tripping the Ysaine and Y gie-the#'worm-supporting Vbracket to depf-SeF-ig; 6, dotted' lines, the knocker- Q5 Yarma.being omittedin thisI view.

3de-eisY by means of a ree @5f-tmc- Y alsoYY s stops 42, another one Automatic actuation is provided to stop the forward movement of the slide at the proper' time when a certain tool has done its work, so as to relieve the operator of close attention and precluding possibility of mistakes and accidents. This is accomplished by a number of stops 452, consisting substantially of screw-threaded pins adjustably seated in the upper part of bracket 36, one stop for each tool-socket in the turret. They act in conjunction with a` swinging dog 43, carried by the slide so as to be im. movable lengthwise with respect thereto and adapted to co-act with all of stops 42, one at the time only, at the forward or movement of the slide. in contact with one of push bracket 36 away handle 32 causing thereby also shoulder '34 to move out from under check This latter is thereby tripped and permits the worm-supporting bracket to drop the saine as before described for the manual actuation by handle 41. The feed-movement ci the slide is thereby caused to stop and the slide is returned by actuation of handles 18, after which it is re-connected to the powerfeed by re-adjustment of the worm-gear which is done by manipulation of handle 32. This return-movement of the slide has also effected a rotary adjustment of the turret as before described so that now another tool is in position for action. In due time dog co-acts again with one of the this time, and by another actuation of bracket 36 drops the worm and again cuts out the power-feed as before described. ln order to thus enable the dog to co-act with another stop and with all the others successively, an adJustment is required whereby the dog is successively moved and set so as to be in position to encounter the various stops as it is carried toward them by 'the slide. This is done autematically and by means actuated by the turret when the saine is caused to rotate when the slide is returned. For such purpose dog 43 is rigidly mounted upon a rod 44 supported :for rotation in bearings, one formed by a bracket 45 and the other in an extension 46 of slide B. 47 is a pinion on this rod in engagementl with a rack 48 fitted into a guide-way so formed in said extension that the rack is capable of movement to or Jfrom the turret.

49 is a spring sleeved upon rod 44 and so connected as to impart to this latter a normal tendency to rotate the pinion in a direction which would move rack 48 toward the turret. Means are provided on the turret which act with each rotary movement of it upon said rack and in a manner to move the same so as to effect a limited rotation of rod 44 in opposite direction and against the action of spring 49. This movement is lf this deg cornes these stops it will from the hub of' facilitates the action of the pusher-arms f 5. The inner end of rack 48 is thereby held which the feed-slide is movably fitted, power-actuated-mechanism to move the slide on its support-involving a worm-wheel and a complementary worm, a shaft near one end of which the worm is supported. a bearing for this end of the shaft, a bracket of which this bearing forms a part, means on which this bracket is supported so as to permit sliding adjustment in a manner whereby the worm may be moved with re- 75. spect to the worm-wheel, a rack and pinion to hold and adjust this bracket, devicesto lock the pinion against rotation to cause the sliding bracket to hold the worm in operative engagement and means to operate these devices to eiiect disenga ment of the worm.

2. In a turret-lathe, thi combination of a turret, a feed-slide upon which it is mounted which the feed-slide is movably tilted, 35 power-actuated mechanism to move the slide on its support involving a worm-wheel and a complementa worm, a shaft near one end of which the wormis supported, a bearing for this end of the shaft, a bracket 9.1iv of which this bearin forms a part, means on which this bracket is supported so as to permit sliding adjustment in a manner whereby the worm may be moved with respectto the worm-wheel, a rack provided suicient to change the position of dog 43 to cause it to encounter another one of stops 42 when again moving forward with the slide. Any applicable means causing endwise movement of the rack may be used as for instance pusher-arms 51 secured to the underside of the turret from which thely; radially project, there being one for eac tool-socket. They act upon rack 48 end- Wise and move the same to cause it to rotate rod 44 and to change the position of dog 43 as described. They are graduated as to amount of projection, Fig. 7 showing extremes, the rack being shown as engaged and held against the action of spring 49, by the one having the largest project-ion which accordinglylholds the swinging dog in one of its extreme positions, the highest one as shown in Fig. 5, and in which positurret permits spring 49 to rotate rod 44 to the extent which anotherv pusher-arm of less projection permits, said pusherarm limiting this rotation by its contact with the end of rack 48 and holds dog 43 in a position in which it is adapted to co-act with the next succeeding one of stops 42. A cam-shaped shoe 52 carried at the inner end of rack 48 when they ass in sition opposite the end of the rac `Eac ofthe stops 42 is of course properly adjusted by preliminarv test-movementsbefore a certain line of wor is started. A curved slot 53 is provided in bracket 45 to clear such of stops 42 which are `set-out'so far thatthey would interfere with the longer feed-movement of the slide permitted b stops not set out so far. t may oocurrt at work is done in which each recurring feed-motion of the slide is of the same extent requiring the use of one stop only. In such case only the uppermost stop is used and a locking pin 54 is provided in bracket 45 which ma be moved so as to project under do 43 t ereb holding the same up in the lposition now s own in Fig.

manipulate this rod, Aa '.projection 1 provided in connection with this rod, a; movable shoulder which, when in engagement with this projection, prevents rotation of the rod and means to actuate this shoulderyeo that when disengaged from the projection men tioned the pinion-carrying rod is released and permitted to rotate. 105 3. In a turret-lathe, the combination of a turret, a feed-slide upon which itis mounted with a rotary adjustment, a support upon which the feed-slide is movably fitted, power-actuated mechanism to move the slide V on its support involving a worm-wheel and a complementary Worm, a shaft near one end ofwhich the worm is supported, a bearing for this end of the shaft, a bracket of which this bearing forms a part, means on which this bracket is supported so as to permit sliding adjustment in a manner whereby the worin may be moved with respect to the worm-wheel, a rack provided on the bracket, a pinion for it, a. rod upon 12H which this pinion is mounted, a handle to manipulate this rod, a projection provided in connection with this rod, a movable support, a spring whereby it is yieldingly held in engagement with the projection men- 125 tioned so as to prevent rotation of the rod and a handle to manipulate this support to disengage it from said projection'to release the rod to permit rotation of the pinion.

4. Ina turret-lathe, the combination of a not affected by them. i

The turret slide may of course be also fed forward entirely by hand by use of handles 18, the worm being simply left in its dropped position, the same stop-devices being used. Or the lathe may be built without power-feed, the same stop-devices and adjustingmeans for them beingused. 'In this case bracket 36 which carries stops 42 or an equivalent support for them is simply ri 'dly secured in position.

aving described my invention, I claim as new:

1. In a turret-lathe, the combination of a turret, a feed-slide upon which it is mounted with a rotary adjustment, a support upon 65. to act upon one of the stops mention turret, a feed-slide upon which it is mount each forward movement of the feed-slide, a

ed with a rotary adjustment, a support upon pinion on this rod, a rack in engagement which the feed-slide is movably fitted, therewith and pusher-arms provided on the power-actuated mechanism to move the turret from which they project at gradu- 5 slide on its support involving a wormated len ths, one for each turret-tool, they 70 wheel and a complementary worm, a shaft being a apted to act upon the rack to ronear one end of which the worm is suptate the rod mentioned, one of them upon ported, a bearinlg for this end of the shaft, each rotary adjustment of the. turret, to a bracket of w ich this bearing forms a cause the dog on said rod to act upon a difpart, means on which this bracket is supferent stop on each succeeding forward 75 ported so as to permit sliding adjust-ment movement of the feed-slide. in a manner whereby the worm may be 7. In a turret-lathe, the combination of a moved with respect to the worm-wheel, a turret, a feed-slide upon which it is mountrack provided on the bracket,.a pinion for ed with a rotary adjustment, a support to it, a rod upon which this pinion is mounted, which the feed-slide is movably fitted, means gg a handle to manipulate this rod, a projecto move the slide, a series of adjustably tion provided in connection with this rod, connected stops, one for each turret-tool, a a movable support, a spring whereby it is spring-actuated rod supported for rotation yieldingly. held in engagement with the and carried on the outside of the feed-slide projection mentioned so as to prevent rotaon which it extends forwardly so as to ter-` gg, tion of thev rod and means carried by the minate opposite the turret from which it is feed-slide and adapted to act upon said suplaterally spaced, a dog rigidly mounted on port in a manner to disengage it from the said rod and adapted to act upon one of projection to release the rod and the pinion the stops mentioned on each forward movethereon for rotation. ment ,of the feed-slide, a pinion on this rod 90 5. In a'turret-lathe, the combination of a a rack in engagement with the pinion and turret, a feed-slide upon which it is mountsupported on the slide so as to be in radial ed with a rotary adjustment, a support upon relation tothe turret, and means provided which .the feed-slide is movably fitted, on the turret and adapted to act upon the 3o :power-actuated mechanism to move the slide rack to eifect limited rotation of the rod 95 on its'support ninvolvin complementary mentioned upon each rotary adjustment of wormgear-elements, an a justably connectthe turret so. as to causethe dog on said rod ed s'upp rtjfoit one .of these elements, means to assume diiferent positions to act upon a involving a spring-actuated device to hold diiferent stop on each forward movement -this support in adjustment to maintain the of the feed-slide. 100 worm-gear elements in operative engage- 8. In a turret-lathe, thecombination-of a ment, adjustably connected stops provided turret, a feed-slide upon which it is mounted in connection with the device mentioned one with a rota adjustment, a sup ort to for each turretftool, an element carried by which the fee -slide is movably fitte ,means 40 the feed-slide and adapted to act upon one to move the slide, "a series of adjustably con- 10g of these stops on each forward movement nected stops, one for each turret-tool, a of said `feedlide and means automatically spring-actuated rod supported for` rotation actuated by the rota adjustment of the and traveling with the feed-slide, a dog turret whereby the e ement mentioned is rigidly mounted on said rod and adapted to 4adjusted to act upon a different stop, on act upon one of the stops mentioned/on each 111 each succeeding forward movement of the forward movement of the feed-slide, a feed-slide. pinion on this rod, a rack in engagement 6. In a turret-lathe, the combination of a with the pinion and pusher-arms provided turret, a feed-slide upon which'it is mounton the turret from which they project at ed with a rotary adjustment, a support graduated lengths, one for each turret-tool, 11 upon which the feed-slide is movably itthey being adapted to act upon the rack to ted, power-actuated mechanism to move the rotate the rod mentioned, one of them upon slide on its support involving compleeach rotary adjustment of the turret, to mentary worm-gear-elements, an adjustcause the dog on said rodto act upon a dif- 65 ably connected support for one of these eleferent stop on each succeeding forward 12 ments, means involving a spring-actuated movement of the feed-side. deviceto hold this support in adjustment to 9. In a turret-lathe, the combination of a maintain the worm-gear elements in operturret, a feed-slide upon which it is mounted ative enga ement, adjustably connected with a rotary adjustment, a support upon stops provi ed in connection with the dewhich the feed-slide is movably fitted, 1: vicev mentioned one for each turret-tool, a power-actuated mechanism to move the slide spring-actuated rod supported for rotation on its support involving a worm-wheel and and traveling with the feed-slide, a do a complementary 'worm, a shaft near one rigidly mounted on sa'd rod and adapte end of which the worm is su ported, a beare on ing for this'end of the sha a bracket of il.

which this bearing forms a part, means on which this bracket is supported so as to permit sliding adjustment in a manner whereby the worm may be moved with respect to the woi-mwheel, a rack provided on the bracket, a pinion for it, a rod upon which this pinion is mounted, a handle to manipulntethis rod, a projection provided in connection with this rod, a movable su port, a spring whereby it is yieldably heldj in engagement with the projection mentioned so as to prevent rotation of the rod, adjustnblv connected stops provided in connection with the movable support mentioned, one for each turret-tool, a spring-actuated rod supported for rotation and traveling with the feedslide, a dog rigidly mounted upon said rod and adapted to act upon one of the stops mentioned on each forward movement of the feed-slide, a ini'on on this rod, a rack in engagement t erewith and means pro vided on the turret and adapted to act upon this rack to e'ect limited rotation of the rod mentioned upon each rotary adustment of the turret to cause the dog on said rod to act upon a. different stop on each succeeding forward movement of the feed-slide.

10. In a turret-lathe, the combination of a turret, a feed-slide upon which it is mounted with a rotary adjustment, a su port upon which the feed-slide is mova y fitted, power-actuated mechanism to move the slide on its support involving a worm-wheel and a complementary worm, a shaft near one end of which the worm is supported, a bearing for this end of the shaft, a bracket of which this bearing forms a part, means on which this bracket is supported so as to permit sliding adjustment in a manner whereby the worm may be moved with "res ect to the worm-wheel, a rack provided on t e bracket, a pinion for it a rod upon which this pinion is mounted, a handle to manipulate this i'od a projection provided in connection with this rod, a movable sup port, a' spring whereby it is yieldingly he d in engagement with the projection mentioned so as to prevent rotation of the rod, adjustably connected stops provided in connection with the movable support mentioned, one for each .turret-too, a springactuated rod supported for rotation and traveling with the feed-slide, a do and a pinion on this rod, a rack en a ing the pinion and pusher-arms provi e on the turret from which they project at graduated lengths, one for each turret-too they being adapted to act upon the rack to rotate the rod mentioned, one of them upon each rotary adjustment of the turret to cause the dog on said rod to act upon a different stop on each succeeding forward movement of the feed-slide.

In testimon 0 whereof, I hereunto affix iiiy signature in t e presence of two witnesses.

HENRY DRESES. Witnesses:

C. SPxiNcm., T. LE Basu.

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