US1570050A - Drilling machine - Google Patents

Description

Jan. 19 1920. w 1,570,050 0 F. W. DINE DRILLING momma Filed August 1, 1923 s Sheets-Sheet 1 FIG. 1

INVENTOR',

14 ATTORNEY Jan. 19,1926. 1,570,050

F. W. DINE DRILLING can:

Filed August 1, 1923 3 Shoots-Shut 2 Fl G. Z

Mam

Jan. 19 1926., 1,570,050

F. w. DINE DRILLING MACHINE Filed August 1, 1923 I5 Sheets-Sheet 5 INVENTOR/ 4L, ATTORNEY Patented Jan. 19, 1926.

-UNI-TED STATES PATaNrot-nca *II'RANK W. DINE, OF HINS'I'EB, OHIO, ASSIGNGSB, BY MESNE ASSIGNMENTS, TO THE NATIONAL AUTOMATIC TOOL COM PANY, RICHMOND, INDIANA, A CORPOBA- .TION O1 DIANA.

DRILLING MACHINE Application fled August 1, Serial Io. 855,188.

To all whom it may concern:

' merous housing parts that must be taken off- Be it known that I, FRANK W. DINE, a

- citizen of the United States," residing at Minster, in the county of Auglaize and State of Ohio, have invented certain new and useful Improvements in Drilling Machines, of which the following is a specification.

It is one of the principal objects of my invention to provide a drilling machine in which there may be easily installed one of three distinct drives, towit, a tight and loose pulley drive, a single clutch drive and a double clutch drive. The latter is more commonly known as the tapping attachment or reversing mechanism, since it provides for a reverse motion of the spindle.

The principal advantage of the three drive construction is, that one can take out one shaft such "as the single clutch drive, and insert another one in its place without the necessity ofunbolting and removing thenu- I in other drilling machines to remove a shaft.

joined claims.

It is alsoianother object of my invention to mount the shafts and the spindle invertical alinement to facilitate machining operations and to properly lubricate them. To supply oil to these shafts there is provided at the lower end of the first one, a' gear. pump that issubmerged at all times in 011 in v the lower part of the main housing, which acts as an Oil reservoir.

Other important and incidental objects will be brought-out in the following specification, and particularly set forth in the sub- In the accompanying drawings illustratingmy invention, Figure 1 is a perspective view of my improved drilling machine. Figure 2 is a longitudinal sectional view' taken through the head of the machine.

showing the double clutch drive and the gear oil pump. Figure 3 is a cross sectional view taken on theline 33 ofFigure 2, showing the reverse gears. Figure 4 is a longitudinal sectional view taken on the line 44 of Figure 2, showing the tight and loose pulley drive in the machine. Figure 5 is a-longi- .tudinal sectional view taken on the same line of Figure 2, showing the drilling machine equipped with the single clutch drive. Figure 6 isa detail side view of the gear oil able cover 7 and to which end pump. And Figure 7 is a bottom plan view of the latter.

Throughout the specification and drawings, similar reference characters denote corresponding parts.

Referring to the accompanying drawings for a detailed description of the form of embodiment of m invention illustrated therein, the numera 1 designates a drilling machine housing having a front bearin ortion 2 for a spindle 3. One of the ves which I have provided for the latter is a tight and loose pulley drive which will now be described.v

In Figure 4, which illustrates this form of drive, the numeral 4 designates a horizontal" pulley shaft that is journaled in ball bearlng members 5, 5 ressed in a removable shaft housing 6 for w ich there is a remov- I plates 8, Bare bolted.

Mounted on the right hand and of the pulle shaft 4 in Figure 4, is a tight pulley 9 an a loose pulley 10 to receive a power driven belt (not shown). Within the housing there is mounted on the pulley shaft 4 mounted in the lower. part of the housing 1. Keyed'to the shaft 13 just below the bearing member 15 is a gear 17 which drives the spindle 3 through an intermediate "train of gearing hereinafter to be described.

In Figure 5 I have shown a single clutch drive shaft 18 which has been substituted for the vertical shaft 13 shown in Figure 4.

Thissubstitution may be easily effected in the following I manner. A nut 19 and a pump pulley 20 on the left-hand end of the pulley shaft 4 are removed, whereupon the end plates 8, 8 are taken off to permit the shaft 4 to be pulled out. The nut 14 is then removed from the vertical shaft 13 to permit the miter gear 12 to .be taken off, after which the shaft housing 6 is lifted out. The ver tical shaft 13 is then free to be pulled out v is screwed in place. A pulley shaft 4 which is shorterthan the first one, since the loose pulley is omitted from it, is then adjusted above the vertical shaft 13 to bring the miter gear 11 into mesh with the miter gear 12, after which the end plates 8, 8 are bo ted to theshaft housing 6. The pump pulley 20 and nut 19 are then applied to the pulley shaft.

Instead of the gear 17 being keyed to the vertical shaft as in Figure 4, it is keyed to a driven clutch member 23 which has in its lower end a conical bore 24 into which there is ada ted to be pressed a conical driving mem er 25 that is keyed to the shaft 18 for a sliding movement thereon.

(See Figure 5.)

The drivin member 25 is shifted along the shaft 18 Ey a shoe 26 which freely fits into a grooved sleeve 27 secured to said drivin -member. The shoe 26 is pinned to a vertical sliding bar 28 which may be reciprocated by any suitable means.

When the driving member 25 is pressed into engagement with the driven member 23,

the shaft 18, when rotated by the pulle shaft 4, will rotate the gear 17 by whic the spindle 3 will be turned through the train of gearing to be hereinafter described.

I have also provided for my drilling machine a double clutch drive shaft 29 shown in Figure 2. This shaft 29 may be substituted for the shaft 18 in the housing 1 1n the same facile manner that the latter shaft was substituted for the shaft 13 in said housing.

The shaft 29 carries not only the drivin clutch member 25 and the driven clutc member 23 to which the gear 17 is keyed, but

also reversin clutch means now to be described. Re erring to Figure 2, the numeral 30 designates a conical driven member mounted on the lower end of the shaft 29 and into engagement with which the driving member 25 is adapted to be pressed. Keyed to the driven member 30 is a gear 31 which meshes with an intermediate gear 32 that in turn is in mesh with a gear 33 fast on a jack shaft 34 journaled in parallelism with the shaft 29 in an upper bearing 35 and a lower bearing 36 in the housing 1.

Keyed to the upper end of the jack shaft 34 is a. gear 37 which meshes with the drivmg gear 17. When the driving member 25 is in engagement with the driven member 23, the gear 17, which is keyed to the latter, will rotate the jack shaft 34 in a positive direction. Then, when said driving member 25 is shifted into engagement with the conical member 30 on the lower end of the shaft 29, it will rotate the jack shaft 34 in a reverse direction for the reason that an intermediate gear 32 is meshed with the gears 31 and 33. (See Figures 2 and 3.)

There is also mounted on the jack shaft 34 a sliding gear -38 which engages a change speed gear 39 keyed to a back gear shaft 40 journaled in the: spindle bearing portion 2 of the housing 1, to give the machine two mechanical speed changes. (See Figure 2.)

The spindle bearing portion 2 of the housing 1, which is in the upper front part of the machine, terminates at its lower end in a skirt or'flan e portion 41 throu h which the back gears iaft 40 and the spin le 3 pro ject. Removably bolted tothis flange ortion of the spindle bearin part 2 IS a flanged or cup-shaped oil-holding member or cover 42. (See Figures 1 and 2.)

Secured tolthe lower end of the back gear shaft 40 is a gear 43 which meshes with a horizontal gear 44. The latter is secured to a spindle-drivingsleeve 45 that is rotatable in a bushing 46 secured in the bearing portion 2 of the housing 1. Pinned in the sleeve 45 are keys 47 which enter longitudinal grooves in the periphery of the spindle 3 for the purpose of driving the latter.

The gears 43 and 44 are mounted on the shaft 40 and sleeve 45 respectively to rotate within the flanged cover 42, which not only contains oil for the lubrication of these gears, but it may be readily taken off to perniit the replacement of them. Furthermore, the location of these change-speed gears at the bottom of the spindle bearing portion 3 of the housing 1, provides a driving connec tion between the back gear shaft 40 and the spindle 3 that is in close proximity to the work, thus eliminating the torque or twist to which the spindle is incident when driven from its upper end.

For the purpose of supplying an abundance of oil to the Various working parts within the housing 1, the following means are provided. In the first place, the shaft 29 is preferably constructed of a piece of hollow tubing to permit oil to be discharged from its upper end upon the miter gear 11 which throws it upon the working parts. The opening. in the housing 1 below the shaft 29, instead of being closed by the nut 22, has screwed into it a nut 48 having an enlarged lower end which contains two cavities in which there freely turn two oil pump gears 49 and 50. (See Figures 2, (i and 7.) These gears are covered by a bot tom plate 51 which is secured by cap screws 52 to the nut 48.

r The gear 50 has an upwardl projectin drivin shaft portion 53 throng which an throng the gear, an axial hole extends for communication at its top end with the hole that runs throu h the shaft 29. The latter is connected wit the drivin shaft portion 53 of the gear 50 by a Woo rufi' key 54, so that said ar may be driven by said shaft 29. (See igure 2.)

A hole 55 is drilled through the into the gear cavities to supply oil to the latter from a reservoir 56 which the housing 1 forms and with -which said hole 55 communicates. (See Figures'ti and7.) i

In the bottom plate 51 a pum discharge hole 57 is drilled, but not a l the way through it; and directly under the ar 50 a hole 58 is drilled in said bottom fp ate, but

not all the way through it, to communicate with the hole in said gear. These two'holes 57 and 58 are connected by a which contains in its outer end a plug 60. (See Figure 7.) This lateral hole 59 permits the 'oil to run from the hole 57 in the dischar e side of the bottom plate to the hole 58 in t e latter which communicates with the hole in the gear 50, that in turn communicates with the hole in the shaft 29. h It will now be seen that when the gears 49 and 50 are rotated by the shaft 29 which is connected to the latter gear, they will force a the oil through the holes 57, 59 and 58 into the hole in said shaft for discharge from its upper end upon the miter gear 11 that throws it upon the working parts. The

shafts 29, 34 and 40 are all mounted vertically and in parallelism with thespindle 3 to permit the oil to'run down over them upon the operating mechanism andtofac1l1- tate machinin operations.

It will also observed from the foregoing description that it is readily possible in my drilling machine to obtain one of three distinct drives, to wit, a tight and loose pulley drive, a single clutch drive or a double clutch one, by substituting any one of the shaft 13, 18 or 29 for the other in the driveshaft receiving portion of the housing 1. These shafts are all of equal length; they are confined at the same oints'in the housing d attachment. Therefore, one ma be substituted for the other with ease an without the necessity'of bolting on a separate housing for each of them as in other types of machines. 4

-Having described my invention, I claim: 1. In-a drilling machine, the combination with a housing having a drive shaft receiving ortion and a front bearing portion, of a spindle movable in the latter, aseries 0 different spindle-driving shafts, .bearing means in the drive shaft receiving portion ofthe housing to receive any one of said shafts without change, a removable'topart for the drive shaft receiving portion '0 the nut 48 lateral hole 59 housing, bearing means in the latter, a pulley', shaft insertible in said bearings, and a geared connection between the selected drive shaft and the pulley shaft.

2. In a drilling machine, the combination with a housingv having a drive shaft receivin portion and a front bearing portion, of. a spindle movable in the latter, a series of different s indle driving shafts, bearings in the drive s aft receiving portion of the housing to receive anyone of said shafts without change, a removable top part forthe drive shaft receiving portion .of the housing, bearings in the latter, a pulley shaft insertible in said bearings, a gear on the pulley shaft, a gear on the selected drive shaftin mesh with the gear on the-pulley shaft, and removwith a housing having a drive shaft receiving portion and a front bearing portion, of a s indle movable in the latter. aserics of di erent spindle-driving shafts, hearings in the drive shaft receiving portion of the housing to receive any one of said shafts without change, a removable top part applied to the drive shaft receiving portion of the housing, bearings in the latter, a pulley shaft adapted to be sli ped into said bearings, end plates adapte to be applied to the removable to part of the housin a miter gear adapte to be applied to t e pulley shaft and a miter gear adapted to be applied to the top part of the selected drive shaft for meshwith each other, a nut applied-to the pulley shaft and nuts applied 'to the selected drive shaft to hold them in proper gear connection with each -other within the housing. y l h 4. In a drilling machine, the combination with a housin of a s indle verticall mounted in the %atter, a tu ular drive sha for said spindle also vertically mounted in the housing, and pump means 0 erativel' connected to said drive shaft at its lower en to force oil through it for discharge at its upper end. 1

52. In adrilling machine, the combination 3. In a drilling machine, the combination I with a housing, of a spindle vertically series of vertical intermediate shafts operatively connected between the spindle and the..drive shaft, and a gear pump operatively connected to'the lower end of the la ter for forcing oil through it to be discharged i at its upper end for descent around it and f the intermediate shafts and spindle, for the purpose specified.

6. In a drilling machine, the combination with .a housing, of a spindle vertically mounted in the latter, a'

orizontal pulley. shaft in said housing, a miter gear on the latter, a tubular drive shaft vertically mounted in said housing, a miter gear on the upper end of the drive shaft in mesh with the miter gear on the pulley shaft, a train of gearing interposed between the drive shaft and spindle to rotate the latter, and gear pump means operatively connected to the lower end of the drive shaft for forcing oil through the latter to be discharged from its upper end upon its miter gear, by which it is thrown upon it, the train of gearing and the spindle, for descent around them.

7 In a drilling machine, the combination with a housing having an opening in its lower end, of a tubular drive shaft vertically mounted in said housing over said opening, a nut screwed into said opening below said shaft and containing two gear receiving cavities in its bottom portion, a pair of oil pump gears in mesh with each other in said cav1- lies, a bottom plate secured. to said nut l-elow the gears, one of said gears having an upwardly projecting tubular shaft portion for connection to said drive shaft, said gear having a central hole which communicates with the hole in its tubular portion and through it with the hole in said drive shaft, the housing being constructed to act as an oil reservoir, said nut containing a hole leading from the latter to the gear cavities, the bottom plate containing'a pump discharge hole, and a hole directly under the gear which is turned by the drive shaft, said holes not extending all the way throu h the bottom plate and being connected y a lateral hole in the latter, and a lug in the outer end of said lateral ole. whereby oil is adapted to be forced throu 11 said holes by the gears whenvrotated by he drive shaft, into and through the latter for dischargefrom its upper end.

In testimony whereof I have hereunto set my hand this 30th da ofJuly, 1923.

F RANK W. DINE;

7 5 Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,570,050, granted January 19, 1926, upon the application of Frank W. Dine, of Minster, Ohio, for an im rovement in Drilling Machines, errors appear requiring correction as follows: n the drawings, Sheet 2, containing Figures 2 and 3, should appear as attached herewith instead of as shown in the drnwin s; Sheet 41, containing Figure 8, should appear as attached herewith as part of the Jetters Patent' in the heading of the drawings, line 3, for 3 sheets read 1; sheets; page 1 of .he printed specification, line 54:, after the word latter and before the period insert a comma and the Words and F gwre 8 is a view on the line 8-8 of F igure 2; page 4, after line 41 add the follow ing as claim 8:

8. In a; drilling machine, a series of interchangeable chewing shafts, a support provided with bearings for we'd clm'm'ng shafts, camovublespindle, bearings therefor in said support, said spindle being operable by said drive shafts, anyone of the drive shafts being insertablee'n the bearings without change a part of said support being removable for the reception 0% said drive shafts, hearing means in said removable part, a Zleg/ shaft inserta la in and readily removable from said bearings, and gearing 'etween the pulley shafts and the drive shaft;

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 25th day. of May, A. D. 1926.

WM. A. KINNAN,

[HEAL] Acting Commissioner of Patents.

Jan. 19 1926. 1,570,050

F. WVDINE DRILLING MACHINE Filed August 1.. 1923 4 Sheets-Sheet 2 AA; ATTORNEY Jan. 19 1926.

F. w. DINE DRILLING MACHINE Filed August 1, 1923 4 Sheets-Sheet 4 J FRANK VV-DINE,

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