US932791A - Cutter-grinder. - Google Patents

Description

R. K. LE BLOND & VV. F. GROENE.

GUTTER GRINDER.

APPLICATION FILED JUNE 29, 190s.

Patented Aug. 31, 1909.

5 SHEETS-SHEET 1.

,vir vlm@ ce@ R. K. LE BLOND z W. P. GROENE.

l CUTTER GRINDER. APPLICATION :ILBD JUNE 29, 190s.

Patented Aug. 31, 1909.

4 5 SHEETS-SHEET 3.

Wineoe@ R. K. LE BLOND 6L W. F. GROENE.

GUTTER GRINDBR.

APPLICATION FILED JUNE 29, 190e.

932,791 Patented Aug. 31, 1909.

5 SHEETS-SHEET 4.

l. @mam B.. K. LE BLOND & W. F. GROENE. CUTTER GRINDBR. APP'LIOATION FILED JUNE 29. 190s.

932,791. Patented Aug. 31, 1909.

5 SHEETS-SHEET 5.

#doi/'MW UNrrED STATES 'PATENT vonrion.

RICHARD K. LE BLOND AND WILLIAM GROENE, OF CINCINNATI, OHIO, ASSIGNORS TO THE yIR.. K. LE'BLOND MACHINE TOOL COMPANY, OF CINCINNATI, OHIO, A CORPORATION 0F OHIO.

CUTTER-Grampian.

Specicationof Letters Patenti Patented Aug. 3,1, 1 909.

Application filed .Tune 29, 1908.. Serial No. 440,956.

Ohio, have invented certain new and usej ful Improvements 1n Cutter-Grmders, of

which the following is a specification.-

The objects, of our invention are tov simplify and render more4 compact the construction of'cutterl grinders so as to obviate the use of stems, posts, split bearings, joints,

l etc., to increase the capacity of these machilies, to dispose the actuating levers in positions such that they will be accessible to the operator either from the frontjor the back of the machine to facilitate his examination of the work which is being done, and to provide for a fine adjustment of the parts in their various positions.

Referring to the accompanying drawings, in whichlike parts are illustratedy by similar reference letters wherever the occur throughout the various views: Figure l is a front elevation of a cutter grinder embodyingv our invention. Fig. 2 is a: side elevation of the same. Fig. 3 is a plan View thereof. Fig. 4 is a detail sectional view taken upon line --m of Fig. 3, upon a somewhat enlarged scale. Fig. 5 is a vertical sectional View taken upon line y--y of Fig. l, upon a somewhat enlarged scale. Fig., 6 is a detail sectional view taken upon line 6 6 of Fig. 3, upon an enlarged scale. Fig. 7 is a detail sectional view taken upon line 7 7 of Fig. 3, upon an enlarged scale.

Referring to the parts: a sleeve, A, is mounted ,tof rotate upon a vertical column, A, which is-secured rigidly upon t-he top of box, A2, which may be used as a cupboard for tools, etc. Column, A has a horizontal lla-nge, or foot, a, which is secured to the top of box, A2. To the top of column, A, is

I securedV a cap, a2. Sleeve, A, is mounted so as to rotate'upon the column, A', between flange, a, and cap, a2, which forms the base plate for the standards between which the spindle ofthe cutting wheels is' journaled, as hereafter described. Sleeve, A, has formed upon it vertical ways, a3, a4, upon which knee, B, is mounted. Sleeve, A, has a lug, a5, in which the elevating screw, b, is secured. Knee, B, has mounted rotatablyin its bottom a bevel pinion, b', whose sleeve engages the screw threads of the elevating screw, b, and whose bevel teeth are engaged by a bevel pinion, b2, which is secured upon the shaft, b3, which is provided with a hand-wheel, bt, for moving the knee, B, upon the ways, a3, a4, in a vertical direction.

Knee, B, is provided with horizontal ways, b5, b, upon which is mounted the saddle, C. Saddle, C, has .a bifurcatedapron, C, c', which passes upon each side of the sleeve,

Afand a flange, c2, Vat its forward end in which is journaled cross feed screw, c3, which passes through a horizontal bushing, b?, which is mounted in the knee, B, whereby the rotation'of the cross-feed screw, o3, reciprocates the saddle, C, upon the knee. Arranged paralle y to the cross feed screw, is a feed shaft, 04, which is journaled at its forward end in the flange, c2, and at its rear end in a vertical flange, c, which projects downward from the end of the apron, c. Shaft, c, at its forward end carries a pinion, c, which intermeshes with the pinion, 0T, which is mounted upon an intermediate stud- 'shaft, es, which is secured to the flange, c2.

Pinion, c7, meshes with a pinion, 09, which is secured upon the cross feed screw, c3. The rear end of the shaft, "c4, is provided with a handle, or lever, C. The saddle may therefore be fed from the front by means of the lever, C2, or from the rear by means of the lever, C.

Saddle, C, has longitudinal ways, c1", which engage the groove, in the bottom of the base, D, of the table. Ways, 010, have a central longitudinal groove, c, and to the bottonr" of the base, D, is secured 'a rack, 0l, which projects into the grooveo11, as illustratedv in Fig. 5. The teeth of rack, d, intermesh with the teeth of a gear wheel, nl', which is mounted upon the feed shaft, D', which is 'ournaled in lu s c, and l013 which ro`ect laterally from the saddle, C, so that the feed shaft, D', extends transversely through the machine and receives actuating levers, D? and D3 upon the front and rear of the machine, whereby the longitudinal movement of the table may be regulated either from the front or the rear of the machine. Secured upon shaft, D', adjacent to the gear wheel, d', is a pinion, nl?, which intermeshes with a worm, d3, upon a shaft, d4, which carries a wheel, d5, as illustrated in Fig. 6. By means of the worm, d3, the pinion, d2, and

the gear wheel, al', tine adjustments of `the longitudinal movement of the table are obtained.

le have provided a stop for the longitudinal movem'ekiithufI the table, which is constructed th'e follottingmanner: The saddle, C, has a central lug,`"'c1*, with a longitudinal screw-threaded bore, in which are seated screws, 015, o1, as illustrated in Fig. 7. Base, D, has upon its front a T- groove, d", in which are seated stop-bolts, dl, d8, which may be adjusted to the position desired in theway, d, to obtain the rough adjustment.

The liner adjustment for the stop is obtained 5 by `adjusting the screws, @'15, 016. When either the stop bolt, d?, or d8, contacts the screw, 015, or c1", the movement of the table is stopped. i

Base, D', has a semi-circular swivel platform, D4, in which a semi-circular 'lf-way,

. screw inward, to move the table, Dl5

d1, is formed. Table, D5, is swiveled upon 'the platform, Dt, in the following manner. In the rear the table has a central pivot bolt, d11,which is secured tothe base, D. 5 Upon the frontof the table, D5, is a forwardly projectin ledge, D6, diametrically j opposite pivot bo t, 11. Ledge, D, has a perforation, d, throughvwhich'a bolt, 0313, passes, into the T-way, d10, within which the 0 head of the bolt is adapted to slide. The head of'jthe bolt is larger than the neck of the T-.wa-y. Surrounding the bolt, 13, is a sleeve,d1*, which is of a diameter less than the hole, 0312, but greater than the diameter 5 of the neck ofthe lway, so that the lower end of sleeve, ai?, rests upon the top of the swivel base, D, as illustrated in Fig. 5. Sleeve, d, is externally screw-threaded at its upper end, 15. The bolt, d13,has a nut, 0 d1, to contact the end of the sleeve, ai. Ledge, D, has longitudinal'boresfd, d1, leading into the perforation, (i12, and in which are seated screws, d1", d to contact the sleeve, d, upon diametrically opposite 5 sides. By loosening theinuts, d, and d, the table, D, may be rotated about the pivot, al, to approximately the desired angleto the spindle. The ne adjustment is attained lirst by tighteningdown thenut, d1,

0 which clamps the edges of the metal adjacent to the neck of `the T-way between the.

l sleeve, d1'1,'and the head of the nut, d, thereby fixing thesaid nut -and'sleeve' in'a stationary (position:l The table, D5, may then 5 be adjuste by means of the screws, al1", d20, A inV one direction or the other by screwing one of 'the screws out and screwing the. other Vrelalay between the 12, and the evtively to the sleeve, d, the 0 walls lof the perforation,

of the sleeve, d, permitting t is riphely ytine a justinent. After t-hisl adjustment has been secured, the table, D, is locked in place by screwingdown the nut, i12 It is tcbe seen that the'maximum D, may be obtained at any point wit-hill the one hundred and eighty degrees of the movement df the table upon the swivel. For guidance in obtaining this adjustment the swivel platform, D4, is graduated upon its periphery. The live and dead centers, E, E', for holding the work, are mounted in waysfdf, upon the table.

We will now describe thefmeans of mounting the spindle of the grinding wheels. Plate, a2, is bolted to the top of the column, A', and has in the rear of its longitudinal diametertwo` standards, g, g', in which `spindle, G, is mounted. Standard, g, projects vertically upward from the plate, a2, within the circumference of said plate, while standard, is curved outward beyond the circumtgerence of the platew a2, so that the journal bearing of the standard, g, is within the vertical plane passing through the circumference of theplate, a2, and the journal bearingof the standard, g', projects beyond -Such a plane. Spindle, G', .may receive emery wheels, g2, g3, ofthe character desired. i

In use the sleeve, A, may be rotated to bring the saddle to any desired angle relatively to the spindle, G, of the cutters, simpl by loosening the clamping bolts, a", a". Wihen the saddle is adjusted so as to bring the table, D, parallel to the spindle, G, and upon the side of the` column opposite that upon which the spindle, G is located,.it is distance between the spindle, G, and the work holding c enters, E, E', is increased, thereby enabling the machine to cut work of an increased diameter, whereas, when the sleeve is turned to bring the saddle upon thelsame side of the column asthe spindle, G, it is seen that the minimum distance between the spindle, G, and the centers, E, E', is diminished, dthereby enabling the grinder to cut work of 'a more diminished diameter. The capacity of. the 'machine` is thus increased bh the mounting of the spindle feccentrical y to the column. Because of the ability to rotate the sleeve about the column, and also to adjust the knee vertically 4upon the rotating sleeve, work which is carried between the centers, E, E', maybe brought'in front of position would lbeone lat about ninety degrees tothe left'or to the right of the posiit is seen`that form cutters, hobs, or yreamers `which are supported between the centers while held between centers', E,

When it is desired `to grind tapered work, it is mounted between the centers, E, E', and

to the grinding wheels, g2, g8, by loosening noted that. this. tine adjustment. of the table,

the-nuts, d, d1, and adjusting the table to thenfa'ce' of the cutter, g2, or g3, and beneath' the centers of said cutter grinders. This could be ground upon their radial faces,

ioo

tion illustrated in Fig. 1. In this position adjusted to any position desired in relation a column, a spindle mounted to one side ot" 60 the ways, f,lock in l the approximate position 'by rotating it by hand. Then the fine adjustment is obtained byinean's of the screws, d, d20, as heretolfore described. It is seen that this fine adjustment may be made atLany point in the travel of the table. v

In the operation of cutting, the operator at times finds it convenient .to stand in front of. the work, and at times to stand in y theA rear of it.u By means of the levers, C2,

and D, the cross feed of the saddle' andthe longitudinal feed of' the tablemay be Worked from the front of the Work While by means of the levers,'C, and D3, .these same operations can be carried on from the'\rear of the work', thus permitting the operatorto assume the position in relation to the more advantageous -for him.A What lWe claim is: J1. In a cutter grinder the lcombination. of

. the centerof the column, a" grinding tool carried by-the spindle, a knee mounted to rotate around the column, and means forv hold-ing the'work upon-the knee.

\2./ In a 'cuttergrinder the cbmbnation of a column, two. standards mounted eccentric- `ally. upon the column,I and one of the stand- .ards projecting beyond and theotherstand-4 ardl standing 'within the periphery of the 'columna spindle` journaled 1n the standards, a knee mounted rotatably .upon the column, -a Work holding device" mounted upon the knee, and means of feeding said devicetoward and from thespindle. 3. In-a cuttergrinderhaving a column, a

knee and a saddle mounted to reciprocate upon the`knee, the -combination of ,across feed screw mountedin the kneea'nd engag 10 ing the saddle, al main lever engaging the' cross feed. screw,and a-supplementary lever extending from the side of the cutter oppoi site-to that of the main .lever and coupled' tol the crbssffeed screw,A whereby an operator may feed the saddle from -a position either infront or, iltth/e rear of the saddle.

it. A cutter grinder having a table base with semi-circular Ways, -a table swiveled *upon the ways, a member carried byl the fh table adapted `to move inf engagement 'lig/ith' the base, means for'locking saidl member to the base and 'an adjusting' screw-carried. by

the-"table y engaging the said member' vto move the" table' 'relatively to said member when irislockedto the baser l table *with Semi-circular' ways,1 .thej table' mounted to swivelixponl the'jways, a post' carried bythe table and adapted 'tmslide in' work ` and the ling the knee, and a .the ways, means of locking the` post inthe .Ways, screws 'in the table and abutting lagainst the post to adjust the table in re*4 lation thereto.

f 7; A cutterigrinder .having a column, a knee,va table 1n combination with a feed lever situated in front of the table, a second feedl lever in .theV rear ofthe table, and a means of coupling said `feed levers to the -tableto'reciprocate Ait upon the knee.

8. A cutter grinder having a column, a knee, a saddle and a' table in combination with a feed lever situated in k,front of the knee, a second feed lever situated in the rear of the jknee.' and -a means, of'coupling said-feed levers `to the saddle to impart a transverse re'ciprocatlonto it, anda third feed lever situatedf in front ofthe table, a fourth feed flever situated ,in the rear of the-table and a mea-ns of coupling the. third and fourth le-V vers to the/cable t'ojmpart a longitudinal re- .ciprocation to it.

'e9a`In a cutter grinder thecombination of a column, a knee carried bythe column, a

bifurcated saddle mounted upon the knee and. `straddling the column, a table mounted upon the knee, two operating screw supported lupon each'side of the colulnn by the' saddle, oneadaptedt reciprocate the saddle -other. adapted to reciprocate the i Y u I' 1.0`. 'In a cutterv grinder havin af member with longitudinal Ways anda ta le adapted to be reoiprocated upon the ways the combination of averticall lugv upon said mem- 'ber adjacent to the table, having Waysupon its side adjacent to the lug, Stop bolts adapt.- ed to be in various posit-ions in the ways upon the table, and adjusting sc rewS mounted in the lug to contact the stop bolts. 4

11. In a cutter grinder the vcombinatifan of a column, a sleeve meuntedrotatably upon `the column ,and having vertical Ways formed upon it, a `kneetmonnted upon the Ways. upon the sleeve,; an elevating mechv.

anism mounted'lup'on the sleeve and engaggrinding toolmounted.`

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