US1250490A

US1250490A - Turret tool-post for engine-lathes.

Info

Publication number: US1250490A
Application number: US13856716A
Authority: US
Inventors: Hermann Newmann
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-12-23
Filing date: 1916-12-23
Publication date: 1917-12-18
Anticipated expiration: 1934-12-18

Description

- H. NEWMANN,

TURRET TOOL POST FOR ENGiNE LAIHES.

APPLICATION FILED DEC.23, 1916.

' Patented Dec. 18, 191?.

2 SHEETS-SHEET I.

3&4, mm;

H. NEWMANN.

TURRET TOOL POST FOR ENGINE LATHES.

APPLICATION FILED DEC-23,1916- 1,250,490a Patented Dec. 18, 1917.

2 SHEETS-SHEET 2- awuewtoz k "l5 $1; ,5 ilk km;

TE IiATENI OFFICE;

HERMANN newt/tanner {a aemia roan,

runner rooL-rosrf role h To all whomz't may concern: I

Be it known that I, HERMANN NEWMANN, a citizen ofthe German Empire, and afresident of Brooklyn, in the cojuntyof Kings and State of New York, have invented certain new and useful lmprovements in Turret Tool-Posts forEngine-Lathes, of which the followingis a specification. h v a a This invention relatestoa turret tool post of novel construction,- more particularly adapted to be securedto the slide rest of an engine lathe; The invention comprises novel means for centering the device novelfmeans forv setting the tool-head, and novel means for securing the tools to said head, allas niorefully pointed out and appended claims.

:' In the vaccompanying r drawingfz i Figurefl is a vertical longitudinal. section online' ofa turret tool post embodying my invention i 2,,a side elevation partly in seetion thereof," y it J V w 3, 21. right hand. end vjew;

Fig.4, a plan, partly in section; j v igavertical crosssection on line 5 -5 tool head settingineanaand i -'7, tai of P unger a As more fullydescri-bed in Patent 1195$9O issued to me August 22, 191 6, the cylindrical block 1010f the tool post is provided withprojecta distancebeyondloothends of the block; Vertically through the bl oek extends a screw bolt 12; the lower threaded end of which is engaged by1a'n ut1 1f3,,the head 14 of which in turn engages the slide rest 15. The

shank of the nut is above the slideirestg en-' compassed by a tubular sleeve 16, counters sunk into block 10, and threaded to the same.

In order to raise or lower block 10 so as to center spindle 11 opposite the lathe, it

was heretofore necessary to slip the device.

off the slide'rest, and thus expose sleeve 16, which was then turned by hand. Bythe construction which is the subject matter of I this invention, this manipulation is obviated, the nut being adapted to be set without requiring the removal of the tool post from the slide rest. For this purpose, sleeve 16 is furnished on its upper side with a peripheral flange having an internal gear 17 which is engaged by a pinion 18, fast on the lower in the specification ig. 6, a longitudinalsection through the boreofblock 10,-;and isheaded on itsupper exposedlend. l 1 :T

In ,order to center theblock, bolt" 124s" slackened; and then shaft 19, manipulated,-

nted Dec.'18',-191 7," Applicaticuifiled December 23,1916. Seria1No.1-38,5 67. 1 v I 3 end or ashaft 19, which status was toyturnsleeve l61by means =ofpinion 18,uso'

thatv in this Way, :the desired-vertical adjust ment of the block relatively to the slide restv may beiaccomplished in a simple and accu= rate manner.

To the exposed; right hand end of spiii'dle.

1; l, there is fitted the tool head. 20,-which is furnished. on its "innerface with a toothed.- rim, 21, adapted to beengagedaby: a: springcontrolled ;bolt 22 housed-withinbldcklO',v the position of thexteeth o-n ri1n21 corre sponding to the-position, of the toolholder'sl In order .;to turncarried r by V the 7 head. spindle .11 axially and thus present the tool desired to the work-there isthreaded on the? exposed left hand end ofspindle 11,-anut 23,;whiehin turn is engaged ,byj am nuts 24,; Nut/23 is-encompassed by the eye oriannulus 25 of ,ahollow handle 26, said annulus being furnishedQWith an arched groove 27 which is-eccentric to nut 23., This groove acconi-. i,

modates a roller or clutch member 28,. which is adapted to be straddled biy'the forked in ner end of a plunger 29, aXiallymovable within hollow handle 26, the. movement of v zlvrp l gel being defined by" apin 3.0 and .sll' WBv 3. r

The: plunger protrudesfrom 2:6,;

and by depressingthe; plunger, and. oscillate h reby i partspindle '11.

sition, it is provided; with a central con- ;9O ing the f handle, roller 28 :will be jammed againstjnut 23,;to turn the same,'a -nd ,to' a a; fcorresponding turn to.

tracted' section or neck 32, engaged by a stop 33'fast on a pin 34, which is accommodated vvithin a bore of plunger 29. This pin is depressed by a spring 34* housed with- Y in the plunger, the spring likewise tending to normally throw the lattter outward and thus out of engagement with the roller.

Tool head 20 is furnished with novel' 7 means for securing thereto a plurality of differently constituted tools. Thus for vaocommodating tools that extend from the head in parallelism with its axis, the head is furnished with a plurality of apertures or seats 35, the walls of which are straight along the inner moiety of the seat, and here converge toward a sharp edge. The wall on the outer moiety of the seat is semicircular, and is tapped for the accommodation of a set screw 36. The circular shank 37 of the tool will be forced by the set screw against the two straight rear walls, so that in this way, the shank will be tangentially engaged by said faces and be thus securely clamped in position'at three points.

For the purpose of securing to head 20, a tool that extends radially therefrom, there is sunk into the outer face of the head, a holder 38 which is pivoted to the head by bolt 39. This'holder is furnished with an adjusted. In order to accommodate tool shanks of different cross sections the bore of the holder is enlarged or squared along one side as at42 (Fig. 2) and contracted or oblongish along the other side as at 43, the

oblong section opening into the squared section. Thus a set screw 44 threaded into the holder, may clamp. thereto, an oblong tool shank 45, while a somewhat longer set screw, may clamp thereto a squared tool shank.

In order to secure a cut off tool 46 to head 20, there is provided a split clamp, formed of a pair of resilient'taperingjaws 47, that areadapted to be drawn against a correspondingly taperedseat 48 of the head. For this purpose, there extends rearwardly from jaws 47, a bolt 49 on which is threaded a nut 50, that engages the back of the head, so that by manipulating the nut, the jaws may either be relaxed or drawn toward each other.

I claim:

1. A turret tool post, comprising a block, a horizontal spindle journaled therein, a tool head carried by the spindle, a vertical screw bolt extending through the block, a nut carried by the bolt, a threaded sleeve engaging the block and encompassing the bolt, and a shaft rotatable within the block and intergeared with the sleeve. i r

2. A turret tool post, comprising a block,

Copies of this patent maybe obtained for five cents each, by addre's Washington, D. 0.

a horizontal spindle journaled therein, a

tool head carried by the spindle, a vertical screw bolt extending through the block, a nut carried by the bolt, a threaded sleeve engaging the block and encompassing the bolt, said sleeve being provided at its upper face with an internally toothed flange, a shaft rotatable within the block and protruding therefrom, and a pinion carried by said shaft and engaging said flange.

3. A turret tool-post, comprising a block, a spindle journaled therein, a tool head carried by one end of the spindle, a nut threaded on the'other end of'the spindle, an eyed handle encompassing the nut, a clutch member engaging the'nut, and'a plunger axially movable within the handle and adapted to engage said clutch member.

4. 'A turret tool post, comprising a block,

a spindle journaled therein, a tool head carriedby one end of the spindle, a nut threaded on the other end of the spindle, an eyed handle encompassing the nut, a clutch roller having a neck and engaging the nut, a forked plunger axially movable within the handle and adapted to engage the clutch roller, and a-spring-controlled stop carried by theplunger and engaging the roller n ck.

5. Aturret tool post comprising ablock, a. spindle journaled therein, a headcarried by the spindle, a tool holderpivoted to the head, said holder having a tail piece, and a set screw tapped into said tail piece and engaging the head. 7

6. A turret tool post comprising a block,

a spindle journaled therein, a head carried by the spindle, a tool holder pivoted to the head, said holder having a" resilient tail piece, and a set screw tappedinto said tail piece and engaging the head.

7. A turret tool post comprising a block, a spindle journaled therein, an eyed head: carried by the spindle, a tool holder pivoted to'the head, saidholder'having an arched tail piecethat extends along the eye of the head, and a set screw tapped into said tailpiece and engaging the eye. V HERMANN NEWMANN.

sing the Commissioner of Patents,"