US1037320A - Mechanism for feeding angular-formed blanks. - Google Patents

Description

Patented Sept. 3, 1912.

s snsms snnm 1.

B. F. RINDFLEISGH.

i i i APPLICATION FILED SBPT.9, 1911.

I MECHANISM FOR FEEDING ANGULARTORMED BLANKS.

' B. F. RINDFLEISGH. MECHANISM FOR FEEDING ANGULAR FORMED BLANKS.

APPLICATION FILED SEPT. 9, 1911.

Patented Sept. 3, 1912.

3 SHEETS-SHEET 2.

B. P. RINDFLEISOH.

MECHANISM FOR EEEDING ANGULAR FORMED BLANKSF APPLICATION FILED SEPT.9, 1911.

1,037,320. Patented Sept: 3,1912.

3 SHEETSHSHBET 3.

UNITED STATES PATENT OFFICE.

BENJAMIN IF. ItINDFLE ISCH, OF CLEVELAND, OHIO, ASSIGNOR TO THE NATIONAL- ACME MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

MECHANISM FOR FEEDING ANGULAR-FORMED BLANKS.

Specification of Letters Patent.

To all whom it may concern: Be it known that I, BENJAMIN F. BIND.- FLnIs'oH, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Mechanism for Feeding Angular-Formed Blanks, of which the following is a specification.

This invention relates to metal working machines, the object of the invention being to provide a mechanism for feeding angularshaped blanks or pieces, such as hexagon, square, octagon or other angular-formed blanks, from a normally stationary spindle to a live spindle, the invention being shown applied to an automatic multiple spindle machine, whereby each live or' rotating spindle may be fed or supplied with a blank at a predetermined time as it is brought into position by the indexing of" the turret, without stoppage of the spindle. In a machine of this general character it has usually been necessary to successively stop the live spindles of the turret in order to feed angular-formed blanks thereto. In the present improvement, however, such blanks are fed to the live or, rot 'at-ihgspindlesof the turret without the stoppage of the spindl'es.

In the drawings accompanyingand forming part of this specification, Figure 1 s a side elevation of this improved multiple spindle machine having the present 11nprovelnent applied thereto; Fig. 2 is a top view thereof; Fig. 3 is a right hand end view thereof; Fig. 4 is a cross-sectional view taken in line 4.4 of Fig. 1; Fig. 5 is a detail view of a part of the blank feedingnleans; Fig. 6 is an end view of the turret looking from front to rear thereofaand Figs. 7 and 8 are detail, partly sectional, views of the turret and tool slide with this improved blank feeding means applied thereto and illustrating different positions thereof.

Similar characters of reference indicate corresponding parts throughout the figures ported on the bed 3 of the machine and hav- I ing a rotary'turret 4 therein carrying a suit able number of live or rotating spindles 5, shownhereln as four in number, rotated in Y the usual manner by gears 6, one on each fed thereto.

spindle, by means of a gear 7 carried on the Patented Sept. 3, 1912.

live spindle shaft 8, which is suitably su'pport-ed at one end in the turret casing and housed at the opposite end in a suitable housing 9 carried on the bed of the machine, a. suitable pulley 10 being located on the shaft for imparting motion thereto. The turret may be rotated by means of "a fan gear 11 in mesh with a segment of teeth 12 carried by the turret casing, the fan gear being located on-a cam shaft 13 supported on the bed of the machine. The turret is looked in position after each indexing by suitable lock bolt mechanism 14: actuated by a suitable cam 15 carried on the cam shaft. cam shaft is rotated in any desired manner, and a conventional means for operating it is shown herein, this comprising a worm wheel 16 mounted on the camshaft and engaged by a worm shaft 17 mounted on the bed of the machine. On this worm shaft is located a sprocket 18, to which motion is imparted by a sprocket chain 19 carried by a sprocket 20 on a transverse shaft 21 suitably housed on the bed of the machine, and

which shaft is provided with a bevel gear 22 in mesh with internal teeth 23 of the pulley mounted upon the spindle driving shaft. It will be understood, of course, that various forms of driving means for the spindle drivin shaft and for the cam shaft may be use as found desirable in practice. The live or rotating spindles of the turret are provided with chucks 24 cor-- responding to the character of the blanks to be fedthereto, and these chucks are suitably operated in the usual manner'by a chuck operating means, comprising a lever25 actuated by earns 26 carried by a cam drum 27 carried on the cam shaft.

Mountedon the bed of the machine for reciprocatory or sliding movement is a tool slide 28 carryingthe tools, which may consist of a drill, reamer and tap, and this tool slide is reciprocated by means of cams 29 carried bya-cam drum 30 on the cam shaft, which cams engage a roll 31 carried by a projection 32 depending from the'slide.

Each of the live or rotating spindles of the turret is provided, as hereinbefore stated, with a suitable chuck for the reception' of the blank, the chuck corresponding to the character of the blank which is to be For instance, if hexagonal blanks are to be fed to the spindles the spindles are provided with hexagon-formed chucks. Each of these chucks is carried by a spindle cap or head 33,the end of which is provided with clutch teeth 34 equally spaced apart on the face of the head, and when a hexagonal blank is to be fedeach cap or head is provided with six clutch teeth, so that theen'dof each-live spindle is thus formed as one member of a clutch.

In the tool slide is mounted for rotation and for sliding movement with the tool slide a spindle 35, the face of which is also provided with similarly formed teeth to those on the caps or heads of the live spindles and therefore constitutes the other member of the clutch, and the bore of this sliding spindle is also machined to accord with the shape of the blanks to be fed to the live spindles. In the present instance it is shown shaped to receive hexagonal blanks, so that when this feeding spindle and the rotating spindle of the turret are in'engagement through the medium of the clutchteeth the bore of the feeding spindle will be in alinement with the bore of thechuck in the live spindle. The feeding spindle of the sliding tool carrier is also notched to correspond with the number of clutch teeth on the end thereof, and in the present in-I stance six of these notches equally spaced apart are shown. notches is a spring tensioned detent 38 for holding the feeding spindle in alinement with the blank magazine 39, the bottom of which is machined-t0 conform with the bore of the feeding spindle, and therefore is shown in the present instance as of hexagon formation. This detent, however, permits the rotation of the normally stationary feeding spindle with the live spindle' at the proper time.

Loosely mounted on the feeding spindle, at the rear of the tool slide, is a lever 40, held between suitable tension nuts 42 and 43 and washers 44. F or limiting the swinging movement of this lever a pair of stop pins 45 and 46 are housed in the tool slide 28. Connected at one end to the lever is a spring 56, the opposite end of which is carried by the head of the tool slide. The magazine 35) hereinbefore referred to is bolted to the tool slide, so that the swinging lever a0 is between the same and the, tool slide head 48, the bottom of the magazine being in line with the feeding spindle when the latter is not being rotated by the live spindle and held in position by its locking detent.

For feeding the blanks from the magazine to the feeding spindle suitable feeding mechanism is provided, which in the present instance comprises a feed rod 50 suitably supported on the bed of the machine and in position to push a blank from the magazine into the feeding spindle and thus, through intermediate blanks, push a forward blank into the chuck of the live spindle when the Cooperating with 'thesetwo spindles are in engagement. This rod is operated by a lever 51 suitably mounted on the bed of the machine and swung by means of cams 52 carried on a cam drum 53 mounted on the camshaft, the upper end of this lever being crotched for the reception of a spool 54 on the end of the feed rod. A suitable cushion spring 55 is located on the feed rod to prevent the breakage of the mechanism due to any variation of the blanks during the feeding operation.

In operation the feeding spindle is charged with blanks from the magazine, from the bottom thereof, through the medium of the feed rod, and on the forward movement of the tool slide it carries the feeding spindle with it so as to bring the clutch teeth thereof into position to engage the similarly formed clutch teeth of one of the live spindles which is in alinement at this time with the feeding spindle; whereupon, through the medium of the clutch teeth the rotating or live spindle of the turret rotates the feeding spindle so that the two spindles are, as it were, tied together with the bores thereof in proper alinement 'to permit a blank to be fed from one spindle to the other; whereupon, on the forward movement of the feed rod to push a blank from the magazine into the feeding spindle this will, through the medium of the intermediate blanks, push the forward blank from the feeding spindle into the chuckof the'live spindle. As the tool slide is retracted it carries its feeding spindle away from the live spindle, at which time the former is stationary, but possibly its bore is not in line with the hexagonal bore of the magazine' To bring the feeding spindle into such line is the purposeof the lever 40, the tension nuts of which clamp the lever between them just sufficiently to permit the feeding spindle when it engages the live spindle to swing or carry such lever into position to have its tail engage the stop pin 45, at which point the lever L0 remains until the tool slide is retracted and its feeding spindle is disconnected from the live spindle, whereupon the lever 40, by means of the spring 56 hereinbeforc referred to, is swung toward the opposite stop pin l6, where it is stopped, thus rotating the feeding spindle 'so as to aline its bore with the bore of the magazine, at which time the locking detent for the feeding spindle enters one of the notches of such feeding spindle and holds it in alinement with the bottom of the magazinc and so permits another blank to be forced from the magazine into the feeding spindle. It will be understood, of course. that after a blank is fed from the feeding spindle to the live spindlc of the turret. on the next indexing of the turret the blank is carried into position to be operated upon by one of the tools of the tool head slide.

into positiomse that the opposed clutch faces of a live spindle and the normally stationary .spindle will engage, at which time the blank will be fed from one spindle to the other in the manner hcreinbefore described, so that when the last tool has completed its operation upon a blank a blank will have been fed from the feeding spindle to the live spindle. This feeding operation will in practice occur in connection with a live spindle from which a blank has been previously ejected in some. suitable manner;

as for -instance when a tap is used the tap may be utilized to draw the blank from the spindle so that on the next indexing of the turret the empty spindle chuck will be carried into position to have a blank fed thereto-on the next forward movement of the tool slide head. I

I claim as my invention:

1. In a metal working machine, the combination of a normally rotating spindle and means for feeding blanks thereto without stopping the rotation of such spindle and comprising a normally stationary spindle' carrying simultaneously a series of blanks, meansfor alining the two lspindl'es during the transfer of such blanks from one spindle to the other, and means for successively transferring the blanks from said blank carrying spindle to the normally rotating spindle.

2. In a metal working machine, the combination of a normally rotating spindle and means for feeding an angular-formed blank.

thereto without stopping the rotation of such spindle and including a normally'stationary spindle movable toward and from the normally rotating spindle and carrying a series of blanks simultaneously, means for alining the two spindles during the transfer of such. blanks, and means through companion blanks to transfer a blank from the blank carrying. spindle to the normally rotating spindle.

3. In a metal wor bination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a normally sta tionary hollow spindle movable toward and from the normally rotating spindle and caroperative.

ing machine, the com-.

rying simultaneously a series of blanks, saidspindles having alining means whereby when they are engaged they will rotate together, and means for transferring a blank from the hollow spindle to the rotary spindle.

4. In a metal working machine, the combination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a normally stationary hollow spindle movable toward and from the normally rotating spindle, said spindles having clutch faces whereby when they are engaged they will rotate together, means for pushing blanks from the nor mally stationary hollow spindle to the nor mally rotating spindle and comprising a? rod, and-means for operating said rod. l

5. In a metal working machine, the com-l bination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a normally stationary spindle movable toward and from the normally rotating spindle, said spindles having'clutch faces whereby when they are engaged they will rotate together, and means for pushing blanks from the normally stationary spindle to the normally ro-' tating spindle and comprising a rod and a magazine having its lower end formed to blanks from the magazine to the hollow spindle and thereby feeding, through intermediate blanks, the foremost blank in the hollow spindle to the normally rotating spindle. a a

7. In a metal working machine, the combination of a normally rotating spindle, means for feeding an angular-formed blank thereto without stopping the rotation-of such spindle and including a normally stationary. spindle movable toward and from the normally rotating splndle, means for alining the two spindles during the'transfer of such blank, a magazine for supplying blanks to the normally stationary spindle, and means for alining the bore of the normally stationary spindle with the magazine at a predetermined time.

8. In' a metal working machine, the combination of a normally rotating spindle,

ment of the normally stationary spindle from the normally rotating spindle.

9. In a metal working machine, the combination of a normally rotating spindle, means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a normally sta-- tionary spindle movable toward and from the normally rotating spindle, means for alining the ,two spindles during the transfer of such blank, a magazine for supplying blanks to the normally stationary spindle, and means for alining the bore of the normally stationary spindle with the magazine at a predetermined time and comprising a spring actuated member operative on the movement of the normally stationaryspindle from the normally rotating spindle.

10. In a metal working machine, the combination of a normally rotating spindle, means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a normally stationary spindle movable toward and from the normally rotating spindle, means for alining the two spindles during the transfer of such blank, a magazine for supplying blanks to theinormally stationary spindle, and means for alining the bore of the i normally stationary spindle with the magazine at a predetermined time and comprising a spring actuated lever operative on the movement of the normally stationary spindle from the normally rotating spindle.

11. In a metal Working machine, the combination of a normally rotatingspindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a normally stationary-spindle movable toward and from the normally rotating spindle, means for alining the two spindles during the transfer of such blanks, a magazine for supplying blanks to the normally stationary spindle, means for pushing the blanks from the magazine into the spindle, and means carried by "the spindle for alining such spindle with the bore of the magazine.

12. In a metal Working machine, the combi.1ation of a normally rotating spindle and means for feeding an angular-formed blank thereto Without stopping the rotation of such spindle and including a normally sta spring actuated lever carried by the spindle and stops for limiting the movements of such lever.

13. In a metal working machine, the combination of a normally rotating spindle and 'means'for feeding an angular-formed blank thereto without stopping the rotation of such spindleand including a normally stationary spindle movable toward and from the normally rotating spindle, means for alining the two spindles during thetransfer of such blank, a magazine for supplying blanks to the normally stationary spindle, means for pushing the blanks from the magazine into the spindle, and means carried by the spindle for alining such spindle with the bore of the magazine and comprising a spring actuated lever carried by the spindle and stops for limiting the movements of such lever, said normally stationary spindle having notches located to correspond with the formation of the bore thereof and a spring pressed detent for holdin said spindle in alinement wit-h the bore 0 the magazlne.

ll. In a metal working machine, the combination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a. normally stationary spindle movable toward and from the normally rotating spindle, said spindles having clutch faces whereby when they are engaged they will rotate together, a magazine for supplying blanks to the bore of the normally stationary spindle, said spindle and magazine having bores corresponding with each other and with the blank to be fed from one to the other, means for. pushin blanks from the magazine into the bore of the spindle, means for holding the spindle so that its bore will be in alinement with the bore of the magazine, and means for alining the spindle bore with that of the magazine.

15. In a metal working machine, the combination of-a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and including a normally stationary spindle movable toward and from the normally rotating spindle, said spindles having clutch faces whereby when they are engaged they will rotate together, a magazine for supplying blanks to the bore of the normally stationary spindle, said spindle and magazine having bores corresponding with each other and with the blank to be fed from one to the other, means for pushing blanks from the magazine into the bore of the spindle, mean: for holding the spindle so that its bore will bein alinement with the bore of the magazine, and means for alining the spindle bore with that of the magazine and comprising a spring actuated lever carried by said spindle and stops for limiting the movement thereof. I

16. In a multiple spindle screw machine, the combination of a rotary turret having a plurality of normally rotating spindles each having aclutch face, a sliding tool carrier movable toward and from said turret, a nor- ,mally stationary spindle carried by said carrier and having a clutch-face corresponding to that of the turret spindles, and means for pushing a blank from the normally stationary spindle to the normally rotating spindles at a predetermined time.

17. In a multiple spindle screw machine, the combination of a rotary turret having a plurality of normally rotating spindles each having a clutch face, a sliding tool carrier movable toward and from said turret, a normally stationary spindle carried by said carrier and having a clutch face corresponding to that of the turret'spindles, a magazine for'supplying blanks to the normally stationary spindle, and means 'for pushing the blanks therefrom to the normally'stationary spindle at a predetermined time.

18. In a multiple spindle screw machine, the combination of a rotary turret having a plurality of normally rotating spindles each havinga clutch face, a sliding tool carrier movable toward and from said turret, a normally stationary spindle carried by said carrier and having a'clutch face corresponding to that of the turret spindles, a magazine for supplying blanks to the normally stationary spindle, means for pushing the blanks therefrom to the normally stationary spindle at a predetermined time, and means for positioning the normally stationary spindle at a predetermined time to receive the blanks from the magazine. a 19. In a multiple spindle screw machine, the combination of a rotary turret having a plurality of normally rotating spindles each havinga clutch face, a sliding tool carrier moving toward and from said turret and carrying a normally stationary spindle hav-' ing a clutch face corresponding with that of the normally rotating spindles and a bore corresponding with that of the blank to be fed, a magazine carried by'said tool slide and also having a bore corresponding with that of the normally stationary spindle, and

a rod for pushing blanks from the magazine into the normally stationary spindle. 20. In a multiple spindle screw machine,

the combination of a rotary turret having a plurality of normally rotating spindles 1 each having a clutch face, a sliding tool carrier movable toward and from said turret and carrying a normally stationary spindle having a clutch face corresponding with those of the normally rotating spindles and a bore corresponding with that of'the blanks to be fed, a magazine carried by said tool slide and also having a bore corresponding with that of the normally stationary spindle, a rod for pushing blanks from the magazine into the normally stationary spin dle, a spring actuated detent for holding the stationary spindle in alinement with the bore of the magazine,.and means for alining the stationary spindle with the bore of the magazine at a predetermined time.

21. In a multiple spindle screw machine,

the combination of a rotary turret having a plurality of normally rotating spindles each having a clutch face, a sliding tool carrier movable toward and from said turret and carrying-a normally stationary spindle having a clutch face corresponding with those of the normally rotating spindles and a bore corresponding with that of the blanks to be fed, a magazine carried by said tool' slide and also having a bore corresponding with that of the normally stationary spindle, arod for pushing blanks from the magazine into the normally stationary spindle, a spring actuated detent for holding the stationary spindle in alinement with the bore of the magazine, and means for alining the stationary spindle ,with the bore of the magazine at a predetermined time and com prising a swinging lever carried by such stationary spindle and stops for limiting the movement of such lever.

22. In a metal working machine,'the com bination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and comprising a normally stationary spindle movable toward and from the normally rotating spindle, a tool slide carrying said spindle, means for alin- V ing'the two spindles during the transfer of a blank, and means for pushing a blank from the stationary spindle to the rotary spindle.

23. In a metal working machine, the combination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and comprising a normally stationary spindle movable toward and from the normally rotating spindle, means for alining the two spindles-during thetransfer of such blank, a tool slide carrying said spindle, and .a magazine carried by said slide for supplying blanks to'the stationary spindle.

24. In a metal working machine, the combination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and comprising a normally stationary spindle movable toward and from the normally rotating spindle, means for alining the two spindles during the transfer of such; blank, a tool slide carrying said spindle, a magazine carried by said slide for supplying blanks to the stationary spindle, and means for pushing blanks from the magazine to the stationary spindle.

25. In a metal working machine, the combination of a-normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation .of such spindle and comprising a normally stationary spindle movable toward and from the normally rotating spindle, means for alining the two spindles during the transfer of such blank, a tool slide carrying said spindle, a magazine carried by said slide for supplying blanks to the stationary spindle, means for pushing blanks from the magazine to the stationary spindle, and means for positioning the stationary spindle with relation to the magazine at a predetermined time.

26. In a metal working machine, the combination of a normally rotating spindle indexable from one position to another and means for indexing it, a slide movable toward and from the spindle and means for shifting it, a normally stationary spindle carried by said slide, said spindles having coiiperating faces whereby when they are in engagement they will rotate together to permit a blankto be fed from one to the other without the stoppage of the normally rotating spindle, a magazine carried by said slide and having a bore corresponding with that of the stationary spindle, and means for feeding a blank from the magazine to the stationary spindle.

2'2. In a metal working machine, the combination of a normally rotating spindle indenable fromone position to another and means for indexing it, a slide movable toward and from the spindle and means for shifting it, a normally stationary spindle carried by said slide, said spindles having cooperating faces whereby when they are in engagement they will rotate together to permit a blank to be fed from one to the other without the stoppage of the normally rotating spindle, a magazine carried by said slide and having a bore corresponding with that of the stationary spindle, means for feeding a blank from the magazine to the stationary spindle, and means'for positioning the statienary spindle with relation to the magazine at a predetermined time.

28. In a metal working machine, the combination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and comprising a normally stationary spindle supported for sliding move ment toward and from said normally rotating spindle, said spindles having cotiperating faces and said stationary spindle having a bore corresponding with the blank to be fed, means for rotating the normally rotating spindle and means for shifting the normally stationary spindle, a magazine shiftable with the normally stationary spindle and having a bore corresponding with that of said spindle, and means for pushing a blank from the magazine into said stationary spindle when the spindles are in engagement.

29. In a metal working machine, the com bination of a normally rotating spindle and means for feeding an angular-formed blank thereto without stopping the rotation of such spindle and comprising a normally stationary spindle supported for sliding movement toward and from said normally rotating spindle, said spindles having cooperating faces and said stationary spindle having a bore corresponding with the blank to be fed, means for rotating the normally rotating spindle and means for shifting the normally stationary spindle, a magazine shiftable with the normally stationary spindle and having a bore corresponding with that of said spindle, means for pushing a blank from the magazine into said stationary spindle when the spindles are in engagement, and means for positioning the stationary spindle with relation to the magazine at a predetermined time.

30. In a metal working machine, the combination of a normally rotating spindle adapted to receive and hold a blank to be operated upon, a normally non-rotative hollow spindle for simultaneously carrying a series of blanks and delivering the same successively to the normally rotating spindle,

means for efiecting temporarily the coincident rotation of said two spindles on a common axis by the engagement of one with the other prior to the transfer of the blank, and means for feeding a blank from one spindle to the other through the medium of companion blanks.

Signed at Cleveland. in the county of -Cuyahoga and State of Ohio, this 7th day of Sept, 1911.

BENJAMIN F. RINDFLEISCH.

Witnesses:

P. F. MELLINGER, I. G. Lon.

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