US1519351A

US1519351A - Radial drilling machine

Info

Publication number: US1519351A
Application number: US609735A
Authority: US
Inventors: Harold L Blood
Original assignee: NILES BEMENTPOND CO
Current assignee: NILES BEMENTPOND CO; NILES-BEMENTPOND Co
Priority date: 1922-12-29
Filing date: 1922-12-29
Publication date: 1924-12-16
Anticipated expiration: 1941-12-16

Description

H. L. BLOOD RADIAL DRILLING MACHINE Dec. E6, m4., 1,519,351

Filed Deo. 29, 1922. 4' 56./

, His:

'E INVENToR -3 f /Mlood Z5 ATTORNEY- Patented Dec. 16, i924.,

im a a garant HAROLD L. .BLO0D, 0F NOR-TH PLAINFIELD, NEVI JERSEY, ASSGNOR T0 NLES-BEMENT- FUND COME?.il-fh??t QE' NER?! YORK. l'l. l. CRPGRATN OE NEW JERSEY.

RADIAL DRLING NIACHNE.

Application filed December 29, 1922. Serial No. 609,735.

To all whom t may concern.'

Be it known that l, HAROLD Biioon a citizen of the United States, residing at North Plainfield, in the county of Somerset and State of New Jersey, have inventedv eertain new and useful lr/iprovements in Radial Drilling Machines7 of which the following is a specification.

'lhis invention relates to radial drilling machines and particularly to sucli machines of the universal type. ln such type of radial drill, the drill spindle supporting portion of the arm is mounted for rotary adjustment about an airis extending longitudinally therethrough and the drill spindle supporting head is rotatably adjustable on its saddle about an axis at right angles to the airis of adjustment of the arm. Heretofore7 both such adjustments have been made manually. The head being of comparatively light weight can be manually adjusted without inconvenience but since the arm is relatively heavy considerable effort is required to adjust the same. rlhe primary object of the invention is to provide a convenient power operated mechanism for rotatably adjusting the arm.

Another object of the invention is to provide, in combination with a radial drilling machine having a drill spindle driving arm shaft extending longitudinally through the arm, mechanism including gearing driven from thesaid shaft for rotatably adjusting the arm about such shaft.

Withthe above and other objects in view, my invention consists in the features of construction and operation set forth in the following specification and illustrated in the accompanying drawing. ln such drawing annexed hereto and forming a part of this specification, l have shown one 'embodiment of my invention but it will be understood that the invention can be otherwise embodied and that the drawing is not to be construed as defining or limiting the scope of the invention, the claims appended to this speciiication' being relied upon for that purpose.

Referring to the figures of the drawing:

Figure 1 is a front elevation of aradial drilling machine embodying my invention.

Fig. 2 is an enlarged fragmentary vertical section through the arm and column shown in Fig. 1.

Fig. 3 is a cross section thereof approximately on line 3-3 of F ig. 2.

Referring more speciiically tothe drawing by reference characters7 l indicates the base, 2 the column and 3 the vertically adjustable arm. of a radial drilling machine. 'Ehe column 2 is preferably divided as shown in Patent No. 1,071,590 and the arm 3 or a carrying member 3fl therefor extends oetween the two parts of the column and 1s suitably guided therein for vertical movement. Rigidly mounted at the rear end of the arm is a gear casing l which carries an electric motor 5. Slidably mounted on the other end 3b of the arm is a saddle 0 carrying a head 7 provided with a rotatable drill spindle 8. A driving shaft 9 entends longitudinally of the arm and is operatively connected to the spindle by means of bevel gears 10 and a short shaft 11.

Mounted on the shaft of the motor 5 is a pinion 12 which meshes with a gear 13 loosely mounted on the shaft 9. Connected with the gear 13 is a pinion 14 which meshes with a gear 15 on a countershaft 16. Mounted on the shaft 16 is a pinion 17 which is adapted to mesh with a gear 18 splined on the shaft 0 and movable by means of a hand lever 10. lWith the parts in the position shown in Fig. 1, the shaft 9 is driven at a relatively low speed indirectly from the motor through the countershaft 16. lWhen the gear 13 is moved toward the left7 it is disengaged from` the pinion 17 and is engaged with clutch teeth on the end of the pinion 14, thus making a direct high speed drive from the gear 13 to the shaft 9. lt will be` understood that the entire gear mechanism as described is mounted within the lcasing Ll and that this casing with the gearing and motor 5 is vertically movable with "the arm 3.

` is shown specifically in Patent No. 1,363,- 20/-l, the head l may be rotatably adjusted about the shaft 11 on the saddle (i by means of an operating shaft 20. The drill supporting portion 3b of the arm 3 is adapted .to be rotatably adjusted about the arm shaft 9. The improved means for so adjusting the arm from thc arm shaft 9 as hereinafter described comprises the main feature of this invention.

its shown specifically in Figs. 2 and 3, the drill supporting portion 3b of the arm 3 is rotatably mounted on a hub 21 of the carrying member 3ZL slidable vertically in the column 2 and such portion may be 1igidly lll.)

fill

kpositioned between the parts 3a and 3".

secured to the member 3a by means of bolts :22. The bolts are mounted in the part 31 and the heads thereof engage within an annular T-slot 23 in the member 3a. By tightenng th@ HUS 24, the part 3b may be rigidly secured in adjusted position to the part 3a.

Secured to the end of the part 3b of thel arm by means of screws 9,5 and'pins :25' is an annular flanged member 26 provided with internal gear teeth 27, such member being A bracket member 2.8 bolted to the member 3a engages the outer end of the gear 26 whereby to hold lthe arm portion 3b positioned on the hub 2l.

Pins

29 and 30 respective-ly on the parts 3a and 3b limit the rotary adjustment of the arm portion 3b.

l Rotatably mounted in the part 3a are two pins 3l and 32. A portion of pin 3l is formed into a pinion 33 in mesh with a pinion 3A on the pin 32, the pinion 34; being in mesh with the internal gear teeth 27. Keyed to the outer end of the pin31 is a gear 35. A pinion 36 forming a part of a sleeve 37 is splined on the shaft 9 for longitudinal movement into and out of mesh with the gear 35; A spring pressed detent 38 within a hand gripping portion 39 of the sleeve normally holds the pinion 36 `disengaged from the gear 35. `When it is desired to rotatably adjust the portion 3b of the arm, the operator loosens the nuts and engages the pinion 36 with the gear An operative connection is thus made with the motor 5 whereby the arm may be rotatably adjusted therefrom.

The arm 3 may be moved vertically on the column from the motor as follows: A screw 4l@ is supported by the column at its upper end 41. A nut 4t2 provided with a bevel gear 43 thereon .is rotatably mounted in the portion 3a 'of the arm and in threaded engagement with the screw. A

ybevel gear la on a shaft 45 coaxial with the shaft 16 is in mesh with the bevel gear A3. A clutch 46 shiftable by a handle a? is adapted to connect shaft 16 with the shaft 45. A driving connection is thereby established between the motor 5 and nut 42 whereby such nut may be rotated in either direction to elevate or lower the arm 3.

1What l claim is:

1. A radial drilling machine comprising the combination of a vertically extending column, a horizontal arm movable vertically thereon, drill spindle supporting means on the arm, a drill spindle rotatably mounted therein, power means for rotating the spindle, and means operated by the said power means for rotatably adjusting the spindle supporting` portion of the arm about a horizontal axis Xtending longitudinally therethrough. j

2.` A radial drilling machine comprising the combination of a colu'mm'anarm movable vertically thereon, drill spindle sepporting means on thearm, a drill spindle rotatably mounted therein, means includ` ing a power operated shaft extending longitudinally through the arm for rotating the drill spindle, and means adapted to be operated from the said shaft for rotatably adjusting the spindle supporting portion of the arm about the shaft.

3. A radial drilling machine comprising the combination of a column, an arm movable vertically thereon, screw threaded means for movingthe arm vertically,drill spindle supporting meanson the arm, a drill spindle rotatably .mounted therein, a shaft extending longitudinally of the `arm and operatively connected to the spindle, power means for operating the shaft and the said screw threaded means, and means adapted to be operated from the said shaft for rotatably adjusting the spindle supporting 'portion of the arm about the shaft as an axis.

4. A radial drilling machine comprising vthe combination of a column, an arm movable vertically thereon, drill spindle sup-- porting means onthe arm at one side o f the column, a drill spindle rotatably mounted therein, a motor on the arm at the other side of the column, means including a shaft extending longitudinally of the arm operatively connecting the motor with the spindle, and means adaptedto be operated from I..

the shaft for rotatably adjusting the spindle supporting portionof the arm about the shaft. f

5. A radial drilling machine comprising the combination of a column, an arm mov-l able vertically thereon, drill spindle supporting means on the arm, a drill spindle rotatably mounted therein, means including a power operated shaft extendingy longitudinally through the Varm for rotating the drill spindle, and gearing including a pinion slidable on the shaft into and out of operative position for rotatably adjusting the spindle supporting portion of the arm about the shaft.

6, A radial drilling machine comprising the combination of a column, an arm movable vertically thereon, one portion of the arm being supported by the column and another portion thereof being mounted on the first portion for rotary adjustment about'a horizontal axis extending longitudinally therethrough, drill spindle supporting means on the said adjustable portion of the arm, a drill spindle rotatably mounted therein, means for rotating the spindle, and power operated means including gearing supported respectively by the non-adjustable and the adjustable portions of the arm for rotatably adjusting the spindle supporting portion.

7. A radial drilling machine comprising the combination oit a Column, an arm movable vertically thereon, a power operated arm shaft extending longitudinally through the arm, one portion of the arm being supported by the column and another portien thereof being mounted on the rst portion for rotary adjustment about the shaft, drill spindle supporting means on the said ad'- 10 justable portion of the arm: a drill spindle rotatably mounted therein and operatively connected to the Shaft?, and means ineluding a gear on the shaft conneeted to gearing on the non-adjustable and the adjustable portions of the arm for rotatably adjusting the spindle supporting portion about the shaft.

In testimony whereof,v lf hereto amr my signature.

HAROLD L. BLOOD