US975966A

US975966A - Grinding-machine.

Info

Publication number: US975966A
Application number: US53678610A
Authority: US
Inventors: Andrew Lilljiquist
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-01-07
Filing date: 1910-01-07
Publication date: 1910-11-15
Anticipated expiration: 1927-11-15

Description

A. LILLJIQUIST. GRINDING- MACHINE.

APPLICATION FILED JAN. 7. 1910.

9"?5,966. Patented N0v. 15,1910

6 SHBETS-SHEET 1.

VWT/V55555 ATTU/P/VEyS A. LILLJIQUIST. GRINDING MACHINE.

APPLIOATION IILED JAN. 7. 1910. 975,9 7 Y Patented N0v."15, 1910.

a snnnrs snnnr 2.

Wyn/5555 ATTURA/Eys A. LILLJIQUIST. GRINDING MACHINE.

APPLIOATION FILED JAN. 7. 1910.

Patented Nov. 15, 1910.

6 SHEETS-SHEET 3.

A. L ILLJIQUIST. GRINDING MACHINE. APPLICATION FILED JAIL), 1910.

975,966. I y I Patented Nov.15,1910..

e SHEETS-SHEET 4.

Wyn/55555 A. LILLJIQUIST. GRINDING MACHINE. APPLIUATION FILED JAN. 7. 1910.

975,966. Patented Nov. 15, 1910.

6 SHEETSBHEET 5.

A. LILLJIQUIST. GRINDING MACHINE. APPLICATION FILED JAN.7. 1910.

8 SHEETS- -SHEET 6.

ATHTJH/VQ'YS Patented Nov. 15, 1 910.

c o., Fig.

i Yitoward n I ,jn'g' the'iamount of feed so that the faces UNITED STATES GRINDING-MACHINE.

Specification Letters Patent. Patented Nov. 1910.

lpplication flled January 7,1910. Ser1a111'o.536,786.

To all whom 'it may concern:

Be it known that LANDREW LILLJIQUIST,

' of Syracuse, in th county of Onondaga and State of New York, have invented a certain 5 new and useful Grinding-Machine, of which the following is a specification.

My invention relates to grinding ma-- chines and art icularly means whereby elongated arti es may be tapered a. predetermined amount, andprovided with-a predetermined number of faces of equal area; and it consists in the combinations and constructions hereinafter set forth and claimed.

In describing this inventionv reference is had to the accompanying drawings in which like characters designate correspond- ;in% parts in all the views.

igure 1 isa plan, of my grinding ma chine illustratin the same as holding an article, rectangu ar in' cross section, to the inder position to grind one of the en thwise "faces of said article. Fig. 2 is a p an similar to. Fig [1, showing the machine as: holding an artjicle octagonal in cross section, in position-to grind one of the faces thereof.--3 ,is a sectio'noon line Fig."'9 V a; Section online'Ex E, Fig. 1.- Fig.10isia 'section-on line F. F,. Fig.2. l The machinecoinprises generally agrindlellnengawork sugporting elemn pro.- with 'workihol m l means-fo1 ret' facesf of the wor 'to the grin ing workholdin means including hich the 'wor canbeadjusted a: "redetermmed amount after the grinding 1 ate, .that.the .finished article redetermined number of faces, aiding one of said; elements e'r,-and means fordetermin thereon *willibeiof equal area;

. As'here shown this grindin 'machinecoma grinding e ementri'2r rotatable aboutjan axis, a. carriage-'3 movable crosa'wi'sebfthta bed, a carria e 4 mounted- I Q on the carriage 3 and movab e lengthwise .of thebed '1 an 'adjustable'work supporter table 5 mounted on and movable with the form, size and construction. The grinding element 2 may be of any desirab e form,

size and construction and 1s here shown as a rotating wheel, usually an emery wheel, supported and actuated in any suitable manner.

The carriage 3 is movable crosswise of the bed 1, and is here shown as provided with projections? extending downwardly through parallel guides 8 in the bed for 'coacting with the feeding means'to be described.

- The carriage 3 is also formed with a guide 9 on its upper face extending crosswise of and at a right angle to the guides 8 and parallel to the side or working face 10 of the emery wheel or grinder. The carria e 4 is movable along the-guide 9 by feeding means to be described. Y

The table .5 is mounted on the carriage 4 and-adjustable about the axis of a pivot 11 relatively to the carriage 3 and the grinder 2 for arranging the work 12 with its axis out of parallelism with the working face 10 of the grinder 2,, and said table is provided with clam-ping devices mounted thereon for holding the work. Thin pivot 11. of the table 5 is preferably arranged parallel to the working face 10 of the grinder and intersects at a right angle the axis of the grinder.

means of a clamping screw 13 threading into the table 5 and extending through an arc-shaped slot 14 in the carriage .4, the screw having a nut 15 provided witha handle 16 located below the carriage 4.

This machine'is provided with means for holding the work with its sides to the inder and also with' means interchangeable with the former means forholding the end of the work to the grinder. The means for holding the [articles sidewise to ,the grinder comprisesa clamping screw 17 for engaging one end of'the work or articles 12 and a device 18 for engaging the other end of said article whereby after one face has been ground on the article it can be turned a predetermined amount so as to present an unground Surface to the grinder. The

screw 17 and device 18'are carried by adjustable blocks 19, 20 spaced apart on the .table' 5 in front and in rear of the grinder 2 and clamped to said table. by suitable means as

screws

21, 22 which extend through These slots permit the blocks 19, 20 to be adjusted lengthwise in order to carry the parts 17, 18 toward and from the plane of the working face 10 of the grinder 1n order to accommodate work of various sizes or diameters. Set screws 25., carried by posts 26 cotiperate with the

screws

21, 22 to hold the blocks in their adjusted position. The block 20 carries an additional device 27 at its end opposite to the end carrying the de vice 18, and said block 20 is movableabout the ivot or axis of its clamping screw 22 for ringing either one or the other of thedevices 18 and 27 into operative position. The device 18 is used when the; work is of such length that it can be arranged at a right angle to the block 20 Fig. 1, and the device 26 is used when the work is too long "or too short to be arranged with its axis at a right angle to the block 20, Fig. 2. The holding device 18 consists of a member as a collar 28 adapted to be mounted on and fixed to the work 12, said collar having a hub 29, Fig. 9, projecting into the block 20 and coiiperating Withl the clamping means which normally prevents the collar and the Work from turning relatively to the block 20.

The collar 28 is provided with peripheral 1 indicating numera v s which when brought opposite to similar numerals on the periphery of a member or collar 30 fixed to the block 19, determines the amount of rotation to be given the work after the grinding of each face in order to provide the work with a predetermined number of. faces. For example if the'numeral 4 is brought. succesand if ever' other numeral .4 of the collar- 28 is broug t opposite .thesamenumeral 4 .on the fixed collar 30 the article W111 be ground rectangular.

The means which normally locks the members 28' and 30 from movement relatively. to each other comprises two jaws 31,

32, Fig. 9, having arc-shaped faces for engagingthe hub 29of the collar 28, onejaw as 31 having a threaded shank 33 on 'which.

turns a nut 34, against a loose collar 35 interposed between said nut and the jaw 31. The nut 34 is providedwith a handle36.

,The. additional holding device 27, Fig. 10, comprises two members and means for locking the members together, one mem er 37 pro ecting from the block 20 and having flat inclined faces 38 and a notch 39 near the .apex of said faces, and the other member .on, Figs. 3 and 4'.

consisting of a c'ollariO- for receiving one end of the work, said collar being provided with an annular series of notches 41 movable into register with the notch 39 and with indicating numerals opposite to the notches 41. Said locking means is a spring-pressed pin or key. 42 held b an arm 43 fixed to the block 20 and movab e partly into the notch.

to the table and having means at one end for engaging the :work when it is'rectangular as shown in Figs. 1 and 3, and means at its other end for engaging the work when one face of an article-to be provided with more than four'faces has been ground there- The first-mentioned means comprises aQblock 48 movable along an upright guide 49 extending arallel to the working face 10 of the grlnder, said block having a face 50'for engaging one of two faces of the work arranged at a right angle to each other and said block having a screw-57 for clamping a part 53 which engages the other of said two faces of the article or work being ground rectangular. The block 48'is held in its adjusted position by a clamping screw 54 extending through the guide 49 into the block 48. and having a head. turning thereon against the outer face of the guide.

The means for engaging one of the faces of the work to be provided with more than four faces comprises a disk 55 having a flattened peripheral face 56 for engaging the ground faces of the work, said-disk being adjustable about its axis to accommodate any angle of incline of the faces and being held in its adjusted position by a clamping screw 57. The element 46 is adjustable about its pivot 47 to bring one or the other of the holding means at its ends into operative position, and it is heldin its adjusted position by anut 58 turning the threaded end 59 of the swivel pin. 1 4

For holding articles on theends of which bevel faces are to be ground,the machine is provided with an element 60-, Figs. 6, 7 and 8, interchangeable with the element'46, saidelement 60 being adapted to be mounted on v in the table and. interchangeable with the, pivot 47 and said the swivel pin 61' turning element 60 consists of two clamps 62 adapted to engage the work 63, these clamps includmg arms depending from screws 64 extend- .ingtransversely through a support 6510- present a new sur-- cated above the element 60 and supported suitable manner as by means of screws 70 passing through threaded passages in the projections 7 of the carriage, each screw being fixed at one end in the bed 1, and having a pinion 71 at 'its other end which meshes with the driving gear 72 rovided with a crank handle 73, the driving gear being located between the pinion 71. The carriage 4' may be fed lengthwise by a lead screw 74 extending in a threaded passage in the projection 75 of the carriage and through a bearing 76. The lead screw 74 is' detachably held in the 'bearing by an externally-threaded sleeve 77 turning into the threaded portion of the bearing and the screw 74 may be removed by detaching the sleeve (in order to permit the carriage 4 to be fedby power means as the crank disk 78 and link 79 connected to the carriage 3. The crank disk 78 may be actuated in any suitable manner.

' The amount of feed of the carria e toward the grinder 1s determlned by a sca e or gage fixed to the frame 1 and over which moves taper per lineal unit the article will have;

for instance'if a given point or indicator, as the point mark 90 on the table 5 is moved to the graduation marked 1 of the scale '81,

the operator knows that the article will'have one inch taper to each foot of'its length.

a For determining the angle or bevel ofthe end face to be ground on the 'end of the work, the supporting element 60 is adjusted about its axis or swivelpin 61 so that the pointer 82 thereon is opposite a predetermined number. on a scale 83 designating degrees; For convenience the point 90 of this scale is used as the indicaton for the scale 81 to determine the position'of the tablev when the table is adjusted about its axis.

In operation to provide an article with tapered faces the article is clamped in posi-- tionin'one 6f the ways described, thetable is adjusted about its axis and the cross feed" carriage; :3 fed slowly toward the rinder to a 'ven oint shown by the inicator'80. en t e face has been ground the adjustable holding device 18 or 27 for the work is operated in order to present a newface of the work to the grinder, and the cross feed carriage is a ain fed toward the grinder a predetermine amount so that the article when finished is tapered and rovided with a predetermined number of aces of e ual area.

en it is desired to use the machine for rinding a bevel end face on work, the holdmg element 60 is interchanged for the other element 46, thework clamped therein and said. element is adjusted along the scale 83 to the predetermined number of degrees and the carriage is fed toward the working face of the grinder.

What I claim -is:

1. In a grinding machine, a movable car- 'riagei a grinding element, a work supporting e ement provided with means for holding the work to the grinding element, one of said elements being mounted on the cal ria e and movable therewith and one of sai elements being adjustable about an axis relatively to the other fon arranging'the plane of the working face of the grinding element and the longitudinal axis of the work out of parallelism with each other,-

means for feeding the carriage, and means for determining the amount of feed of the carriage so that a face of predetermined.

area is ground on the work, and. said work holding means including a device for-adjustin the work about its longitudinal axis a pre etermined amount so that the finished article is tapered and provided with a predetermined number of facesof equal area;

substantially as and for the purpose described.

adjustable about an axis relative y to the carriage. and work holding means mounted on the table,'means for feeding the carriage, means for determiningthe amount of feed of the carriage toward the grinding element so thata face of predetermined area will be ground on the work, and means for de-.

tel-mining the amount of movement of the table about its axis in order that the face ground onthe work extends at a prede termined incline relatively to the axis of the 'work, the work holding means including a device adjustablefor turning the work about its axisa predetermined amount, so that the finishe article is tapered and provided with the predeterminednumber of faces of equal area, substantially as and for'the purpose set forth. k

amount of crosswise feed of thecarriage so that the work is provided with a face of predetermined area, means for determining the amount of movement of the table about its axis, so that the face round on the work extends at a predetermined incline to the axis of the work, and means for feeding the carriage .lengthwise of the bed, substan tially as and forv the purpose described.

4. A grinding machine comprising a rotatable grinder, a bed anda carriage movable.

lengthwise of the bed parallel to the working face of the grinder and crosswise of the bed toward and from the grinder, a work supporting table mounted on the carriage and adjustable about an axis arranged par allel to the (plane of theiworking face of the grinder an intersecting at" a right angle the axis of said grinder, work holding means on the. table, means for feeding the table crosswise of the bed toward and from the grinder, a-gage for determining the amount of crosswise'feed of the carriage so that the work-is provided with a face of predetermined area, a scale carried by the carriage and fixed relatively to the table for deter- 'mining the amount of movement "of thetable about its axis so thatthe face ground on the work extends at a 'redetermined in- --cline to the axis of the wor means for feed-. ing the carriage lengthwise of the bed, said work holding means including a'dev'ice for. adjustin the work aboutits a'xis redetermine amount whereby the finisi i cle'is tapered and provided with a prede termiped number of faces of equal. area,substantially as and for the urpose specified.

5,'In a grinding .mac ine, a grinder, .a-f.

sai devices including a 'block mounted on -theitable, two members, one being-carried carriage movable toward and fromthe grinder, and a work'supporting table meant-i ed on and movable with the carriage, the J rovided with'meansffor holding thelwor said means including, clam" ing justab e re ativel 'to the table toward and from the plane 0 the working face of the grinder, substantially as and for the purpose Jset.

table being devices spaced apart and' a forth. 1 6. In a grinding machi grinder and a work supporting table mounted on and movable with the carriage and arti- I r a grinder, 'a. carriage movable toward and from the provided with means for holding the work, the work holding means including blocks spaced apart and located in front and in rear of the grinder, the blocks being provided with lengthwise slots, clamping means extending through the slots and into the table and clampin devices for engaging the work, said devices bein ends of the blocks, substantially as and for the purpose described. l I

7. In a grinding machine, a grinder, and a -work sup orting table provided with means for ho ding the work to the grinder, the work holding means including elements arranged in front of the plane of the working face of the grinder, one of said elements. including a block pivoted to the table and having devices at opposite sides of its pivot for engaging and holding the work, the'block being movable about.

means for ho ding the work to the grinder,v

said means including blocks arranged in front of the plane of the workin face of the grinder, each block being ormed of a lengthwise slot, clamping means extending through the slot and into the table, a spindle carried by one of .the blocks for engaging one end of the work and permitting rotation of the work, .and the other block being provided with devices at opposite sides of its clamping means for engagm and holding the opposite end of the wor the latter means beingp'erable for rotating the 4 work predetermined amounts, the last-mentioned block being movable about its axis, for bringing one or the other .ofsaid devices into operative positioii, substantially *as and for the purpose set forth.

carried at the holding means includin a clamping device for holding one end of t e'work and permit- .adjustment of-the work about its axis,

ing]. of a co lar adapted to be fixed to the work, the collar being connected to the firstnamed member and provided with a series:

-of-indicatin characters and being adjustable relative y to said one member for turn-' ing the work about its ax1s, and means for normally locking said members together, substantiallyas and for the purpose described.

10. In a grinding machine, agrinder, and

a work supporting table provided with isa means for holding the Work to the grinder,

the work holding means including a clampingdevice for holding one end of the work and permitting adjustment of the work about its axis, said device including a block 1 two members, one

-the work, the collar being connected to the first-named member provided with an annular series of notches and indicating characters associated with the notches, said notches being adapted to be brought into registration successively with the first-mentioned notch as the collar is turned to adjust the work and a key movable into and out of the notches in registration, substantially asand for the purpose specified.

11. In a grinding machine, a grinder, and a work supporting table provided with means for holding work to the gri'nd er, the work holding means including a block pivoted between its ends to the table and having means on opposite sides of its pivot for engaging one end of the work and permit ting adjustment of the work about its axis, said block being movable about its axis for bringing either of the engaging means into operative position, each engaging means including two members, one being carried by the block and the other member consisting of a collar-adapted to be fixed toone end of the work, the collar being connected to the member fixed to the block and provided with an annular series of indicators for determining the amount of adjusting movement to be given the work, and means for normally locking the members together, substantially as and for the purpose set forth. I

' 12. In a grinding machine, a grinder, and a work supporting table provided with a means for holding the work to the grinder,

the work holding-means including an ele-' ment pivoted to the table between its ends.

and havin a part at one end thereof for engaging aces of the work arranged at a ri t an le to each other and a part at the .ot er en of the work for engaging one of the faces of an article being provi d with .testing witnesses, at

more than four faces, the said member being movable about its axis for bringing either of said parts into operative position, sub-v stantially' as and for the purpose described. 13. In a grinding machine, a grindenand a work supporting table provided with means for holding the work to the grinder,

the work holding means including an element pivoted to'the table between its ends and havin a part at one end thereof for engaging aces of the work arrangedat a right angle to each other and a part. atth'e other end of said means for engaging one of the faces of an article being provided with more than four faces, the latter means said parts into operative position, substantially as and for theepurpose described.

. 14. In a grinding machine, a grinder, a carriage movable toward and from the grinder, a work supporting table mounted on the carriage and adjustable about an axis relatively thereto, work holding means mounted on the table a'ndinclud1ng devices for holding the work with its lengthwise sides to the grinder, said devices being operable for adjusting the work about its axis and presenting a predetermined number of faces consecutively to the grinder,

means for feeding the carriage, a gage for determining the amoiint of feed of the carriage toward the grinder, and a scale. for

determining the amount of -movement on the table about its axis in order to detersubstantially as andfor the purpose speci- In testimony whereof, I have hereunto signed my name in the presence of two at- Syracuse, in the county of Onondaga, in the State of New York, this 14thday of June, 1909.

ANDREW ,LILLJIQUIST.

Witnesses:

' S. DAVIS, a E. R. SEEMILLER.

mine the amount of taper of the article, 9