US1457387A

US1457387A - Multiple-spindle drill

Info

Publication number: US1457387A
Application number: US451737A
Authority: US
Inventors: Neitzel Frank Egon
Original assignee: BETHLEHEM SHIPBUILDING CORP
Current assignee: BETHLEHEM SHIPBUILDING Corp
Priority date: 1921-03-12
Filing date: 1921-03-12
Publication date: 1923-06-05
Anticipated expiration: 1940-06-05

Description

June 5, 19.23. 1,457,387

F. E. NEITZEL MULTIPLE SPINDLE DRILVL Filed March l2, 1921 18 Sheets-Sheet l ATTORNEYS L l\\ .www m N,

Q w N HHIHHIHIIIIHHH llllllllll .73 j BY June 5, 1923.

F. E, NElTzEl.

IvIUL'IIPLEy SPINDLE DRILL Filed March l2 1921 18 Sheets-Sheet 2 INVENTOR ATTORNEYS June`5, 1923. 1,457,387

F. E. NEITZEL MULTIPLE SPINDLE 4DRILL Filed March l2 1921 18 Sheets-Sheet 3 /70 Z049 .l l

W4/@6M ff ATToNEYs IN.VENTOR June 5, 1923. 1,457,387

F. E. NEITZEL MULTIPLE SPINDLE DRILL FiIed March 12, 1921 :1B sheets-sheet 4 l Hlllllnllllllilll` H|||||||1||\ a UEM 18 sheets-sheet 5 June 5, 1923.

F. E. NElTzEL MULTIPLE SPINDLE DRILL Filed March 12, 1921 WS/L June 5, 1923.

F. E. NEITZEL MULTIPLE SPINDLE DRILL 18 Sheets-Sheet 6 Filed March l2, 1921 SmY June 5, 1923. 1,457,387

F. E. NEITZEL MULTIPLE SPINDLE DRILL Filed March l2, 1921 18 Sheets-Sheet 7 June 5, 1923.

F. E. NETZEL MULTIPLE SPINDLE DRILL Filed March 12, 1921 1e sheets-sheen June 5, 1923.

* F. E. NEITZEI. MULTIPLE SPINDLE DRILL 1921 A1a sheets-sheet 9 Filed March l2 9% m F m M w M ATTORNE June 5, 1923.

F` E. NEITZEL MULTIPLE SPINDLE DRILL 1921 1s sheetsfs'heen 11 Filed March l2 LATI 00 /Jvoo June 5, 1923.

1,457,387 F. E. NEITZEL.

MULTIPLE SPINDLE DRILL Filed March 12, 1921 18 Sheets-'sheet 12 OWL/NE. Z5-25. Fl 6.6

C77 i `INVENTOR A I Z x y ATTORNEYS June 5, 1923.

F. E. NEITZEL MULTIPLE S PINDLE DRILL Filed March l2, 1921 18 Sheets-Sheet l5 wmv@ Nw June 5, 1923.

F. E. NEITZEL MULTI PLE SPINDLE DRILL Filed March 12 1921 18 Sheets-Sheet 14 au/Ms. .e7-Zz F1626.

June 5, 1923.

F. E. NEITZEL MULTIPLE SPINDLE DRILL Filed March 12, 1921 18 sheets-sheet 15 Anf! I /NVEIVTOR A TTORWEYS June 5, 1923.

F. E. NEITZEL MULTIPLE SPINDLE DRILL Filed March l2 1921 18 Sheets-Sheet 16 UZMQJLQM' .ATTORNEYS June 5, 1923.

1;457,387 F. E. NElTzl-:L

MULTIPLE SPINDLE DRILL Filed March l2 1921 18 Sheets-$heet 17 INVENTOR June 5, 1923.

1,45 7,38'7 F. E. NEITZEL fMULTIPLE SPINDLE DRILL Filed March 12, 1921 18 Sheets-Sheet 18 ATTORNEYS Patented June 5, 1923.

:FRANK EGON Nnrrznr., or SAN FRANCISCO, OALIFORNiA, V.essreivon ro. nnfrrrrininlvr SHIPBUILDING CORPORATION. A CORPORATION OFDELAWARE.

MULTIPLESPINDLE DRILL.

Appncaun"ied'narcnia 1921. seriai No. 451,737'.

To all/whom t mag/concern;

- Be it known that'l, FRANK EGON Niemann, a citizen of the United States, residing at San Francisco, county or" j San Francisco, State of California, have invented a new and useful `Mlultiple-Spindle Drill, of which the following'is ay speciication. l In my prior application -tiled July 81st, 1919, Serial No. 314,510, 1 have illustrated and generically claimed a novel construction of multiple spindle drill, the claims being directed 'fmore particularly 'to the multipule spindle drill, per se, while `my present in-v vention is directed more particularly to the feeding and controlling mechanism for the worlr table.

l/Vith the above in view, my! invention comprehends a vnovel construction of multiple drill which is especially designed or'drilling the holes for .tubes in boiler drums, al-

though as is apparent, it can 'be employed.

in 'all cases wherein it is desired to simul, taneously drill or vream a multiplicity of holes. "Y It` furthercomprehends a novel construction and arrangement of a drill head,inovel means ormounting the drill heads so that they may be brought into closelyspaced relationship, novel driving mechanism for the spindles carried by the drill'heafls and a novel construction and arrangement of mechanism for controlling thespindle driving mechanism.

Other novel features of'constructio'n and advantagewill hereinafter more clearly appear in the detailed description of theinvention.

For the ypurpose of illustrating one manner vof carrying out my invention in practice, I have shown in the accompanying drawings a typical embodiment or it which in practice will give satisfactory and reliable results. 1t is, however, to be understood that this embodiment is typical only and that the various instrumentalities 'ofwhich my invention consists can be variously are ranged and organized and that the inven` tion is not limited to the precise arrangement and organization of these `instrumentalities asherein set forth.

Figure 1 represents, infront elevation, a' multiple spindle drill, embodying my in-v vention.

Figure 2 represents a top plan view of the drill.

the drill, viewed tween the spindle sockets.

.Figure 3 represents an lend elevation of from the left-hand side 'or the machine. i i y i 'i Figure 4 represents an end elevationof the drill, viewed from the right-hand side of the machine.

Figure 5 represents, in perspective, a trip-y ping device employed and adjuncts. c'

Figure 6 represents, on an enlarged scale, an end elevation Ofcertain parts left-hand side of the machine. `Figure represents a plan View, partly yin section, of certain features of construction at the left-hand side of the machine.v i

Figure 8 represents a section Online '8-8 Figure 7. i

Figure 9` represents, in perspective, and in detached position, a nut ,employed which is shown in assembled position in lFigure 8. `Figur J `10 represents a section` on 4line 10-10 Figure 2., v 4 Figure 11" represents a section =on line 11-11 Figure1. l f f i Figure 12 represents an end elevation,

certain of its anni s @5 seenat the 'partly in section, of certain features of 4the table cont-rolling mechanism.

tion, a bolt and the stop Whichit carries.

Figure Y1.6 representsy a" bottom* plan view of the construction seen in Figure 15.'

Figure 17 represents a section on' line 174-17 of Figurei2,.showing more palrticularly the manner in-which the kdrum and' certain of its adjun'cts 'are mounted.

l18 of Figure'19.v

Figure 19 represents a section on,` -line 19e-19 or Figure 18. y

Figure 18v represents a'sectioir on line- Figure 20 represents va sectiononline 20--20 of Figure 1, showing more clearly the manner in which thespindles are mounted and driven.'

1 Figure V21frep'resents `a sectionfon line n 2 1-421'Of`vFigure 1.

g Figure 22 represents 22-22 oFiguI'e 1. l

VvFigure 23, represents,'in sectional elevaT tion, another embodiment ot my invention wherein spacing elements-are employed bea section on line ist Figure 24 represents, in perspective, a spacing element. seen in Figure 23.

Figure 25 represents a section on line 25-4-25 of Figure 1 showing more clearly, on an enlarged scale, the manner in which the drill spindles are mounted and driven.

Figure 26 represents. in front elevation, the feed gear box and certain of its adjuncts.

Figure 27 represents a section on line 27-27 of Figure 26.

Figure 28 represents a section on line 28-28 of Figurey 1. showing more clearly the friction feed, and the manner in which it is controlled.

Figure 29 represents a section on line 29-29 of Figure 27.

Figure 3() represents a. section on line 30-30 of Figure 29.

Referring to the drawings.

a. section on line reference indicate The framework of the machine.

The framework of the machine consists of a base-or foundation 1 to which are connected side frames 2, braced at their upper end by means of a cross-beam 3 of structural metal of any desired shape. The base 1 is provided with laterally extending tracks 4, see Figures 1 and 2, which extend outwardly beyond the base and are supported at their outer ends by brackets 5 connected to the base. The tracks are adapted to have mounted on them a work carrying table 6, having the depending ribs 7, see more par ticularly Figure 1, which are guided in the slots 8 in the track 4.

The table 6 is provided with means for actuating it, and such means will be hereinafter fully set forth.

The base of the machine carries a main driving motor 9, see Figure 4, the shaft of which is provided with a pulley 10, around which passes a belt 11, which also passes around a compound pulley 12 which is mounted on a counter-shaft 13 journalled in the side frames.

14 is a belt which passes around the pullev 12 and also around a compound pulley 15 mounted on a shaft 16 carried by a side frame 2. A belt 17 passes around the pulley 15 and around a pulley 18 mounted on a shaft 19 which also has mounted on it a pulley 20, around which passes a belt 21, which also passes around a pulley 22, mounted on a shaft 23 journalled in the machine framework. f

The feed gear bow. y The shaft 23 extends into the feed gear box 24 which is carried by the cross beam 3, which connects the side frames 2. The shaft 23 is provided with a pinion 25, see Figure 29, which meshes with a gear 26, the hub of which is loosely mounted on a` shaft 27 journalled in the gear box.

The shaft 23 is also provided with a worm 28 which meshes with a worm wheel 29, see Figure 30, mounted on a shaft 30, which latter also has mounted on it a Worm 31, which meshes with a worm wheel 32, the hub of which is loosely mounted on the shaft 27. The hub of the gear 26 is provided with a clutch face 33, which co-operates with a clutch face 34 of a clutch collar 35, which latter is also provided with a clutch face 36, which co-operates with a clutch face 37 of the worm Wheel 32, so that the

shafts

23 and 27 can be operatively connected with each u other.

The clutch collar 35`is sllidingly mounted on and keyed to the shaft 27 to rotate in unison with it and the clutch collar 35 is provided witha yoke 38, which is fulcrumed y 46 is secured to the forward end of the rock shaft 45. The rock shaft 45 has loosely mounted on it an actuating lever 47 to which is connected one end of a slide bar 48 guided in a sleeve 49 on the feed gear box 24, see Figures 1 and 26.

The bar 48 is provided with an inclined or bevelled face 50, see more particularly Figure 26, which merges into a straight face 51, and the free end of the slide bar 48 is provided with a downwardly extending lug 52.'

53 designates a roller which normally engages the straight face 51 and this roller is carried by a spring-pressed plunger 54, which is keyed in a bracket 55 so as to have only longitudinal movement, and a spring 56 is provided which tends to retain a stop arm 57 on the plunger in its upward or operative position and in the path of an arm 58 which extends through a slot 59 in the feed gea-r box and is connected to the yoke 38, see more particularly Figure 30.

I provide a. holding device for such yoke 38, which consists of a plunger 60, see more particularly Figure 30, slidable in a sleeve 61 extending through a wall of the feed gear ico box 24. A spring 62 is provided one end of which abuts against the plunger While its opposite end abuts against an adjusting screw 63 in engagement with the sleeve and provided with a lock nut 64. The plunger