US1139475A - Universal milling-machine. - Google Patents

Description

J. BECKER.

UNIVERSAL MILLING MACHINE. APPLICATION FILED FEB. 23. I909.

' Patented May 18, 1915.

5 SHEETS-SHEET 1.

Fig.1.

5% 'j/ E Jbhn Badger,

. 2 b g 3 z 590-50117? fl M y r Adys. 1

1. BECKER.

UNIVERSAL'MILLING MACHINE APPLICATION FILED-FEB 23,.l 909.-

Patented May 18, 1915.

I 5 SHEE TSSHEET 2.

Witnesses: I Invenivr:

TohnBec/ik,

y MrM J. BECKER.

UNIVERSAL MILLING MACHlNE.

Patented May18', 1915.

I APPLICATION FILED FEB. 23. 1909. 1,139,475.

5 SHEETSSHEET 3.

mm g I Attgs.

filth/Becker, I

Mam, Mmmw mhunnnuunuuwmmmmmmmmmmmmmiw 1 liiillllilllllllll l mer orrron.

J'OHlfI BECKER, F HYDE PARK, MASSACHUSETTS, ASSIGNOR-T0 BECKER MILLING MACHINE CQMPANY, 0F PORTLAND, MAINE, A CQRPORATION OEMAINE.

urnvnnsnr. MILLING-MACHINE.

meagre.

Specification of Letters Patent.

Application filed February 23, 1909. Serial No. 479,546

To all whom it may concern Be it known that I, JOHN BECKER, a citizen of the United States, and a resident of Hyde Park, in thecounty of Norfolk and Commonwealth of Massachusetts,' have invented an Improvement in Universal Milling-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like.

parts.

Myinvention relates to milling machines and the like and more particularly to feeding means therefor.

My invention may be readily understood by reference to the following description of an illustrative embodiment thereof shown in the accompanying drawings wherein,

Figure 1 is a front elevation of amilling machine embodyin my invention; Fig. 2 is a side elevation o Fig. 1; Fig.3is an on larged sectional detail taken on line of Fig: 2, looking toward the left; Fig. 4: IS a sectional detail takenon the vertical line 4-4 of Fig. 3 looking toward the right; Fig. 5' is a sectional detail taken on line 7 '7 of Fig. l looking toward the right; and

Fig. 6 is an enlarged sectional detail on the zig-zag 11116 8-8 of Fig.

In the drawings, referring to 'Flg. 1 the milling machine illustrating my invention comprises a column-like frame 1 supporting a vertically sliding knee 2 carrying a bed supporting a work table 3, see'Fig. 4. Said frame extends upwardly, curving forward to constitute an arm 1* overhanging the work table 3 to support a vertical spindle 4 having a pulley 5 which is drivenin the usual manner from a stepped cone pulley 6 1 spindle pulley 5 by pulleys 9 by a belt 7 said pulley 6 being mounted on a stud shaft 8 projecting rearward'ly from the frame 1 near its base. I The belt '7'is guided from said cone pulley 6 to the mounted on a seated on the back of the curved portion of .theframe 1. Said shaft and its pulleys may be adjusted to tighten the belt by a screw 12. The speed of the spindle 4 maybe varied by the usual back gears 1.3 Figs. 1 and 2). The spindle e is journaled in a slide block .14 (see Fig. 2) vertically adjustable on the front end of said overhanging arm 1* by the usual hand wheel 15 having gear connections with said slide not shown herein. A

groove 21 in said head flange 19, said Patented Mav 18, 1915. f

head 16 (seeFigs. 2 and 5) for supporting i I a horizontal cutter may be attached to the lower spindle bearing 17 on the block 14 by a flange 18 on said bearing registering with a corresponding flange 19 on the upper end of said head. These flanges may be conveniently held together by spliced vertical heads of which are received by an annular oove being T-shaped in section. It will e 'ap parent that by loosening said bolts the head bolts 20 depending from said flange 18; the

16 may be turned to'adjust the cutter carried thereby to any desired angle in a horizontal plane. This adjustment may be made to an angle of the desired number of degree by reference to a beveled graduated scale 22 (Figs. 1 and 2) on the upper periphery of the lower flange 19 and a mark 23 on the supporting head the cutter may be faced in any horizontaldirection to give the-desired relation between the cutter and Work without the necessity of turning the feed table.

Referring more particularly to 'Fi 2,

about midway in thc'height of the co umn I is abracket 62carrying a change gear mechanism 63 driven at various speeds from a shaft 64 journaled in hearings on said bracket, said shaft having a stepped cone pulley 65 fast thereon driven by a. belt not shown herein, from a similar stepped cone pulley 66 mounted on the stud shaft 8 re- 'ferred to. Power is transmittedto feed the work table from 'said change gear mechanism by a short shaft 67 having a universal connection with an extensible or telescopic shaft 68 having a similar universal connection with a short shaft 69 (Fig. 4) journaled.

in hearings in the work. table'bed 70. Fast on the end of this short shaft 69 is a bevel gear 71 (see Fig. 4) driving in opposite directionsthe opposed bevel gears 72 and73 (see Figs. 4 and 5) which are loosely mounted on a transverse shaft 74 journaled in bearings in said bed. The hubs of said bevel gears 72 and 73 are provided with clutch ends cohperating with the clutch ends of a shifting piece 7 5 splined to said shaft 74. By sliding this shifting piece 00 the right or the left of the drive may be transmitted either through the bevel gear 72 or 73, according to the direction of rota tion desired. A pinion 7 6 fast on said bevel ear shaft 74 drives a spur gear 77 havinga l iub 78 rotative in a bushing 79 fast in the bed 70 referred to. The table feed screw shaft 80 herein is journaled at one of its ends in a bearing in said bed and at its op- .posite end is supported in the hub of the spur gear. 77 (see Fig. 5). This gear constitutes the drive "gear for said shaft and may be connected to rotate therewithby a I clutch spool 81 s lined to said shaft 80, the

opposed ends 0 said gear hub and said spool being provided with'clutch faces 81,

'whereby the sh ft 80 may be driven automatically through the drive described or be turned .manually to adjust it as desired.

The screw shaft being mounted in the bed does not travel as in the case where said by .a' lu 25.

screw shaft is mounted in the table. in the table is fed from the screw shaft 80 82 (see Figs. 1 and 4) having a threade engagement therewith and depending centrally from the work table. Heretofore, so far as I am aware, the rotative feed of the spindle of the index head has'.been

j translation and rotation. To this end (see transmitted from a feed screw shaft jour-' naled in the work table and not in the table supporting bed. r

I will now describe the mechanismwhereby the index head spindle may be givena rotative feed independently of a non-traveling feed screw shaft mounted in the table supporting bed, or whereby said shaft and spindle may be simultaneously -operated to give said spindle simultaneously, a feed 'of Fig. 4) the feed screw gear 7 7 referred to as driving the feed screw shaft 80, also drives a spur gear 91, fast on a short shaft 92 jour-.

naled in bearings in said bed, said gear 91 in turn driving a spur gear 93 having a wide hub 94 journaled in a bracket bearing 95 projecting laterally from the rear of-saidbed 70, said hub being axially retained in said bracket by acollar 96, threaded on the end thereof.

As the table 3 is fed on the bed toward the right. or left of Fig. 3, the index head will travel with it and in order to give the index head spindle 97 a rotative feed simultaneously with its' longitudinal travel to cut helices and spirals, etc., an'extensible or telescopic shaft 100 is splined to and mounted to slide longitudinally within along sleeve 101 which extends through the wide hub of the gear 93 and is splined thereto and rotated thereby. The relative longitu dinal movement of said sleeve 101 (see Fig. 3) with respect to said wide hub 94 is limited by stops 102 on the opposite ends of said sleeve one of said stops engaging the shoulder of a counter-bore 103 on the gear Here-- said frame 109.

' termediate idler pinion 122 (Fig. 6) fast on 93 and the other engaging the end of the feather 104 which connects said hub and sleeve. The relative longitudinal movement of said sleeve and shaft 100 to thesleft of -Fig. 3 is limited by the engagement of a stop 105'on theinner end of said shaft with the feather 106' connecting said sleeve and shaft and to the'right the movement is lim-. ited by the engagement of the end of saidsliaft with a diaphragm 107 fixed into the end of said sleeve.

The telescopic shaft 10015 caused to travelwith the index head and table and is moved longitudinally in its sleeve 101 by a lug 108 depending from a frame 109 bolted .to the .end of the work table (see Fig. 1) and sup-. portsa train of gears for transmitting a rotative feed to theindex head spindle as more fully hereinafter described. This lug is bored to receive saidtelescopic shaft and is interposed between collars 110. End thereto.

The feeding drive is transmitted from the telescopic shaft 100 to the index head gears by a spur gear 111 (see Fig. 3) fast on said a shaft, said gear meshing with and driving a gear 112 directly above it, and loosely mounted on a stud shaft on an adjustable bracket 113 (seeFig. 2) bolted. on the frame.

109 referred to. Fast upon the hub of the gear 112 is a larger gear 114 which drives a s ur gear 115 (see Fi 3 and 6) directly a ove it and mounted ast on the outwardly projecting end of a shaft 116' journaled in bearings in said frame'10-9. When the drive is as just described one speed w1ll be transmitted to said gear 115. A different speed may be trans'n'iitted by exchanging the I places of the gears 112 and 114 and readjusting said bracket 113. The index head spindle 97 may be given arotative feed in its one direction by a spur gear 117 (see Fig. 6)

fast on said shaft 116 meshing with and driving a spur. gear 118 fast on an. adjacent parallel shaft 119 'ournaled in hearings" in his gear drives-a wide faced gear 120.;fast on a parallel, adjacent shaft 121, the drive being transmittedtherefrom to the index head spindle by the usual gears not: shown herein. A wide faced .in

a sliding shaft 123, journaled in bearings m i said frame 109, is constantly in mesh with said gear 118, and when/the drive as described is direct from the gear 117 to the transmitting a feed to said movable means irrespective of relative movements between said table and its bed.

9. A machineof the class described comprising, in combination, a table supporting bed, a work table adapted. to be fed rela tively thereto, an index head spindle on said table, driving means on said bed and transmission means coiiperating with said driving means and spindle and including ex' tensible means to feed said spindle from said driving means.

10. A machine of the class described comprising, in combination, a table; a supporting bed therefor; a spindle carried by said table; a feed screw shaft journaled in said bed for feeding said spindle longitudinally; driving means on said bed; and an extensible shaft extending from said bed to said stituting a bearing for said shaft and means detachably to connect said gear to said shaft.

12. A machine ofthe class described comprising, in combination, a bed, a work table thereon, a table feed screw shaft journaled in. said bed, a spindle on said table, a gear having a wide hub journaled in said bed and constituting a bearing for one end of said shaft and adjustable means deta'chably to connect said gear to said shaft to drive the latter from said gear. i

'13. A machine of the class described com prising, in' combination, movable means; a-support therefor; and transmission means for imparting movements of translation and rotation to said movable means includin a non traveling feed screw shaft journale in said support; and means for varying the direction of the rotative feed of said movable means independently of the direction of rotation of said shaft.

14. ,A machine of the class described'comprising, in combination, a table; its bed; a

's'pindle mounted on said table; driving means on said bed; and m eans for transmitting a feed to said spindle, irrespective ,of relative movements between saidtable and bed, including a plurality of gears carried by said table for transmitting the feed to said spindle and axially adjustable gears interposed between said gears for varying the direction of feed of said spindle.

15. A machine of the class described comprising, in combination, a table; its bed; a spindle mounted on said table; driving means on said bed; and means for translitting a feed to said spindle, irrespective of relative movements between said table and bed, including a pluralityof gears carried by said table for transmitting the feed to said spindle, axially adjustable shafts and gears fast thereon interposed between said first named gears to vary the direction of said feed; and means to retain said shifts in their positions ofaxial adjustment.

16. A machine of the class described comprising, in combination, a bed; a table there and transmission means for imparting a. ro-

tative feed to said rotative means irrespective of relative movements between said table and bed; and means mounted on said table for changing the direction. of rotative feed of said rotative means.-

17 A machine of the class described com I v on; rotative means'mounted on said table;

prising, in combination, a bed; a work table thereon; means for feeding said table-ale said bed; ro'tative means carried by sai table; and driving means on said bed having provision for rotating said rotative means independently of said table feeding means.

19, A machine of the class described comprising, in combination, a, bed; a' table;

adapted to be. fed thereon; a spindle carried "by said table; a non-traveling feed screw shaft journaled in said bed; means on said table for threaded connection with said screw shaft whereby [rotation of the latter may feed said table; and driving means for transmitting a feed to said s indie, said driving means including means or rotating said shaft.

20. A machine of the class described'comprising, in combination, a bed; a table'thereon; a non-travelin feed screw shaft journaled on said bed or feeding said table; a

spindle carried by the latter; and means to transmit a rotative feed to said spindle without rotation of said screw shaft.

21. A machine oftheclass described com prising, in combination, a su port; awo rk table thereon; means for fee 'ng said table relatively to said sigpport; rotative means mounted on'said tableiind ha'ving provision for acting on the work; driving means on said supper-ligand, transmission means extending frdin said, driving means to said table for. transmitting power to said rotatfv e of said table feeding.

means independently means. I 22. A-machififflieclnssdoscribbdcomprising, in com ation, asuppo thereon; means for feeding and table rehtvely to, and lgppqm monbb menu mounted on said table; driving means on said support; and means for transmitting power to said movable means from said driving means including a shaft movable in the direction of its axis with said table and means to rotate said shaft from said driving means while permitting the axialmovement of said shaft.

23. A macliine of the class described comprising, in combination, a support; a work table thereon; means for feeding said table relatively to said support; a rotative instrumentality mounted on said table and having provision for acting on the work; driving means on said support; and means extending from said driving means to said instrumentality for transmitting power to the latter including a shaft rotated by said driving means irrespective of relative movement between said table and support.

24. A machine of the class described comprising, in combination, a support; a work having provision.for'acting on the work; driving means on saidsupport; and means to transmit power from said driving means to said instrumentality including a shaft and gear, and means permitting relative movement between said shaft and gear on movement of said table relatively to said support.

25. A machine of the class described comprising, in combination, a support; a work table thereon; means for feeding said table relatively to said support; rotative meansmounted on said table and having provision for acting on the work; and means for automatically operating said rotative means ins."

dependently of said table feeding means.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOHN BECKER.

Witnesses EVERETT S. Emery, HENRY T. Wruanms.

Images