USRE17822E - Boeing machine - Google Patents

Description

Re. 17,822 I s. WAGNER BORING MACHINE Original Filed May 25. 1926 INVENTOR. ,STEF/IN WflG-NER.

ATTORNE Reissued Oct. 7, 1930 PATENT OFFICE- STEFAN WAGNER, LOS ANGELES, CALIFORNIA VBQRING MACHINE Q'i-iEinaI m. 1,693,971, dated This invention relates to boring machines. The general object of the invention is to provide an improvedmultiple spindle boring machine. 4

I A specific object of the invention is to provide an improved head for use with boring machines. I r I Another'object of the invention is to provide a novel mechanism for shifting the head of a boring machine.

A further object of the invention is to pro-v vide a head having a plurality of chucks thereon and having novel means for moving and holding the chucks.

Other objects of the invention will be apparent from the following description taken in connection with the accompanying drawings wherein:

' Fig. 1 is a perspective view of a boring machine embodying the feature of my invention.

Fig. 2 is a front view of the spindle head;

Fig. 3 is a transverse section through the head, and

Fig. 4 is a longitudinal section taken on line 44, Fig. 3.

Referring to the drawing by reference characters I have shown my improved boring machine as comprising a head 1 mounted on a base 2 which has a work holding slide 3 thereon. The slide moves on a bed 4 being moved toward and from the head 1 by a foot pedal 5. The bed 4 is moved vertically by means of a hand wheel 6. The boring head 1 is illustrated as having a pulley 8 and a belt 9 for supplying the rotating power to the tool spindles or chucks in which drills are mounted. It is to be understood however, that anysuitable means of power application may be employed such as a direct motor drive or a gear drive without afiecting the scope of the invention.

The boring head 1 consists of a supporting casing 12 having a supporting base 12 and provided with a central bore 13 for the reception of a flanged bushing 14 which is shown as secured to the front face of the supporting casing 12 by means of fastening members 14'.

The bushing serves to hold a gear 15, which December 4, 1928, semi 1%. 111,484, filed ma 25, 1926. Application for reissue filed May 29, 1930. Serial No; 457,458.

is mounted on a cylindrical sleeve 16, in

place. The housing is bored out as at 17 to form an end bearing for the sleeve 16 previously described. The face 20 of the gear abuts against the face 21 of an internal flange 22 formed at the juncture of bores 13v and '17. The front face 21 of the gear 15 engages the rear face ofthe'bushing 14 thus preventing undue lateral-movement of the gear 15. I

At the front and rear of the sleeve 16 I arrange internal collars 18 and 19 which are held in place by fastening members 20".

lounted within the'collars 18- and 19 is a shaft 23 upon which the pulley 8 is mounted. This shaft 23 is provided with suitable thrust bearings 22 which take thethrust from a spiral gear 23 arranged thereon. Mounted on'spindles 24 arranged about the shaft 23',

I fix spiral gears 25." Thesegears mesh with the-main gear 23 and are driven thereby. The spindles 24 are mounted 'in'the collars 18 and '19' and the construction is such that when the pulley 8 is driven the gear 23 will drive the gears 25.

The spindles 24 have chucks 27 mounted thereon. These chucks are adapted to receive drills or bits 28 which are adapted to operate upon work held upon the slide 3.

In order to rotate the gear 15 and thus bodily rotate all of the chucks, I provide a worm 30 which coacts with the worm gear 15 so that when a hand wheel 31 is turned the gear 15 will be rotated to-thus rotate the chucks. A locking'member '32 may be employed tohold the worm 3O inset position.

The spindles 24 are irregularly spaced around the shaft 23. By thus asymmetri- "cally spacing the spindles, the head may be adjustedfor boring a pair of holes or a group of holes in a piece of work in certain desired relations to each other. While thus adjusted, the operation may be repeated on another piece of work with the assurance that both pairs of holes or both groups of holes will be exact duplicates of each other.

The head is provided with a front face 33 while the outer face of the collar 19 isprovidedwith a scale 34 which cooperates with an index 35 to indicate the circumferential disposition of the chucks.

Fromthe foregoing description it vvill'be apparent that I have provided an improved w f i ",HL Y i n 2,.Abor1ngmach1ne compr sing a caslng, a sleeve onrnaIed said; casing, a centrally vided w1t11"gearsfmeshing with theflg'ear" on? said centrally disposed shaft, Worm-teeth o'n boring machine which can be economically manufactured and which is highly elficient in use.

the periphery of said; sleeve, a orm journaled in said casing adapted to; engage'with said wormteeth,1 andmea-ns for rotatingsaid disposed shaft mounted in saidsleeve, gear onsaid shaft,"fa plurality of spindles arrangedat irregular intervals around said shaft, rgear means ca ,-rriedfby each of said spindles adapted tomeshfyvith the gearmeans on said-=shaft,.means for rotatably adjusting a said sleeve in said casingand meansfor se curing is'ard "sleeve n T1ts ad ustecl POSltlOIl.

i3, A, boringmachine comprising a casing, a sleevegournaled in said cas1ng,;a shaft mounted inf-said sleeve, apluralityof spindles arranged at irregulariintervals around said shaft, iiinterengagingymeans carried by said shaft and; eachofsaid spindles whereby rotai ,tion of the shaft causes rotation of the spin- :dles and m'ea-nsfor rotatably adjusting-said sleeveandsaid shaft in said casing.

4. A boring machine comprising a support,

shaft carriedin said sleeve, a plura'li-ty of around-said central shaft, gear means :on said termeshinig with the gear means on saidshaft sa 51 P a 7. A oringmachine comprising a support, la sleeve joumialsed in said support, a centrally tral shaft mounted to rotate in said sleeve, a'. plurality of spindles asymmetrically disposed at intervals around said shaft, coacting means on said shaft and on each of said spindles to cause said spindles to be driven by said shaft, and means for holding said sleeve in adjusted position with respect to disposed shaft in said sleeve, spacedbearings for 'sai'd' shaft, gear teeth on said shaft, a pluralit of irregularly spaced spindles jour- Jnalef in saidfsleeve surroundin'gsaid centrally disposed" shaft, said spindles having gearingfteethmeshin'g with the gearteeth on said centrallydisposed shaft, vormteeth on the periphery of said sleeve and means to: hold said sleeve in adjusted asuppo i I Y ,t

w met I h r y In s mer STEFAN AGNER;

position relative to signature.

.5 a sleeve mounted on said support, a central spindles -arranged lat irregular intervals slraft, gear-means on each of said spindles iny and meanson saidj'supportandsaid sleevefor a "singularly adj'usting said sleeve withrespect "1 Q l q to said support. I i

r 5. Aboring;machine-comprisinga supporting casing, an internal abutment on said caswing, a SlBEyVGrIhGRIltBd on said supporting casingand having a, portion bearing against Esaid l-abutment, a central shaft \rotatably mounted :i'nsaid sleeve, a plurality of spindles gear means on said shaft, "gear means on each ef isa-id spindlesmeshinfg with the gear-means onfsaid shaft, and cooperating means on said casing and saidssleeve for rotatably adrjustmg casing. Y i 1 1 ing saidsleeve with respect to said support- 'BLA hOri-ng machinecomprisinga'support, Q

,r'aniabutment on said support, a sleeve rotatasymmetrical-1ydisposed around said shaft,

ablymonnted on-saidsupport and havinga it i Q 1 portion hearing againstisaidaabutmenuacen-

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