US1777567A - Fixture for forming bearings - Google Patents

Description

@dl 75 193%.. F, C, JQNEg ET AL 1,777,567

FIXTURE FOR FORMING BEARXNGS l Filed Dec. 2a, 1925 3 Shee-shz 1 @Mornago oct. 1, 1930.

F. c. JONES VE-r AL 1,777,567

FXTURE FOR,u FORMING BEARINGS Filed Deo. 2s, 1925 5 sheets-sheet 2 HSM ct. 7; 1930. v F. c. JONES ET AL 1,2 77,567

FIXTURE FOR FORMING ABEARINGS Patented Oct. `7, 17930 UNITED *12STATE-1S PATENT olflflcll FREDERICK c. JONES AND WINFIELD sfENniiRIOH, or DETROIT, MIOHIGAMASSIGNORS TO BOIIN ALUMINUM a BRASS CORPORATION, or DETROIT, MICHIGAN, A CORPORA- TION oFlVlIGAN FIXTURE ron FORMING V13eisernes p Application filed December 28, 1925,. `Serial No. 78,031.`

The invention relates `to i'netalvvorking and refers more particularly to a fixture for forming bearing, bushing or like segments.

In the manufacture of bearings, bushings and the like, the bearings arepi'eferably cast in cylindrical form from suitable material such as brass, bronze, etc. `This cylindrical casting is preferably of a larger diameter than desired in the `final product. The cy- `lindrical bearing is diametrically severed to produce two segmental bearing. members.k

The edges `of these members must thenv be `machined and with this in vIeWtlie cylindricalcastings are made over size as aforesaid.v

Before this machining operation takes place,

`theradii of the bearing segments are reduced to the final desired dimension, this closing-in operation providing bearing segments of greater than semi-circular` shape in transverse cross section V4so thativhen the edgesV are ma!- chined a true semi-cylindrical bearing segment of the desired radius Will beobtained.V `Thus, by reason of the closing-in operation,

su'llicient material is aflordedat the edges of the bearing segments to permit machiningv of the edges. Before the closing-in operation,

`it was common practice to cast theA cylindrical bearings to the iinaldesired radial'dimension necessitating destroying one-half of the castn ing,the cut being made so as to provide one of tlie..resulti1ig segments With sufficient material at the edges to permit machining to the final semifcircular cross section, the other of the segments, being less than a semi-circle in cross section, 4Was scrapped.

`inventionresides'inthe novel features of construction and combination and` arrangements of parts as more fullyhereinafter described and claimed. e

Referring to the accompanying drawings in which lilrefreference characters indicate corresponding parts;

Figure l is aperspective view showing the fixture; Figure 2 is an elevation view of the saine looking at the left side as shown in Figure .1', Y

F igure is a plan view of the fixture;

Figure 5 is a detail view in ing the close-iii die; y

Figure 6 is adetail elevation view showing the close-iii die in raised l l stripper bars; and v Figure 7 a diagrammatic view illustrat ing the cross sectional shape of the `cylindrielevation showcal bearing segment before and aftier the close-in operation.

In the drawings-reference character'A. represents the base which may be supported in any suitable manner such as by table or the like (not shown). Adjustably supported on the base is a 'loading platform B, headed fasteners 10 serving'to clamp the platfor-m`B to the base A. The platform ispreferabl'y` provided With longitudinal slots l1 engageable by the fasteners l0 so as to permit ad- Figure @is a front elevation `view there-` position and the Y' justinent of the platform Brelative to the base A to accommodate any desired number of bearing segments. @represents an unloading platform, Wliich like the platform B, is adjustably secured to the base A by reason of the headed fasteners 12 and slots 13.\ For guiding the cylindrical bearingror like segments during` movement thereof, along the platform Btoward the platform C, We have provided ,the guidebars or strips 14 Which extend longitudina'llyat opposite f sides of the platforms Band C respectively.

These guide bars are preferably secured" to the respective platforms by reason of the headed fasteners l5 engageable in'slotsl whereby the vguide bars of each platform` B and C may be relatively adjusted so as to accommodate bearing segmentsoffvarying Widths. p i

Positioned between the platforms B and C, are the complementary buffer plates 17 and 17a, these latter plates being adapted to receive the bearing segments from the platform B for operation thereof bythe reciprocatory close-in die D; In order to properly these square ends 31.

position the bearingr segments on the buffer plate 17 for operation thereon by the die D, the plates 17 and 17a are respectively provided with the positioning and guide bars 18 as best shown in Figure 5, these bars being secured to the plates 17 and 17a by suitable headed fasteners 19. It will be noted that the positioningbars 1.8 `are provided` with outer curved surfaces. 20engageable with the inner wall of the bearing segments so as not to interfere with the movement of the die D as the latter is movedby any suitableV mechanism (not shown) into engagement with the bearing segments for closing-in the spectively. Thus, by rotating the adjusting `members-24 the buffer plates 17 and 17? and consequentlythe positioning-bars 18 may be adjusted toward or vaway from eachA other. The brackets 23 may be slotted at 27, to provide for clamping the adjusting members in various positions of rotative adjustment. 28 represents a suitable clamping bolt for forcing together the slotted portions ofthe bracket 23 to produce the clamping action on the adjustment members 24.

Secured tothe base A are the L-shaped .brackets 29, a pair of these brackets being located at. the front and rear of the fixture j as shown in Figure 1 for supporting the rods 30. The roc 30 are preferably formed with the square ends 31, the brackets 29 being formed with suitable openings for receiving respective brackets 29. Mountedon each of the rods 30 is a pair of stripper brackets these brackets being fori'ned with asuitable opening for receiving` the rods 30. 34 represents a pair of cross bars serving to connect a bracket 33 on each ot the rods 30 by reasonof the filler blocks 35 and fasteners 36. The brackets 33 are provided with vertical slots 37 through which extend the stripper bars 38.A is shown in' Figure 2, these bars are normally urged upwardly byfreason of coil springs For positioning the bars 38 at`varying heights in the slots 37,. ad-

' justing screws 40 are provided, these adjusting screws serving to fix the upper-limit of travel of the stripper bars-38. The bars 38 are thus capable of vertical adjustment so l as to clear bearing segments of varying radii.

Headed fasteners 32v serve to connect the ends of rods 30 with thev The ends of the stripper bars 38 are preferably provided witli the fasteners 41 which serve to prevent longitudinal movement of the bars in the slots 37. 42 represents set screws adjustable in the brackets 33 and engageabie with the rods 30 whereby the pairs ofr brackets connected by the cross bars 33 and carrying the stripper bars 38 respectively maybe moved toward or away' from each other in order to accommodate bearing segments of varying length. As shown in Fig- .ureV 6,v the stripper bars 38 are located at opposite sides respectively of the path of Vmovement of the die D, the lower inner edges of the stripper bars slightly overlapping the respective ends of the cylindrical bearing or like segments E so as to engage the bearing segments to strip or eject the same from the die D.

The unloading platform C is provided with a transverse groove 43 adjacent the outer edge thereof and slidable within this groove are the abutment brackets 44. As shown in Figure 2, the brackets are adjustable toward or away from each other 'sliding in the groove V43, the brackets being clamped'in various positions of adjustment by reason of the clamping fixtures 45 slidably engaging slots 46 of the unloading platform C. The abutment brackets 44 respectively carry abutment rod's47 which are slidable therein and clamped thereto in various positions ofadjustment by reason ofthe set screw 48. f

rlhe operation of the fixture is as follows: The guide bars 14 areA adjusted to receive the bearing segments 'E therebetween as shown in Figure 3. vLikewise, the adjusting members 24 are actuated to limit the positioningbars 18 relative to cach other so to accommodate and properly position the bearing segments E preparatory for operation thereon by the closing-in die D. The stripper bars 38 are also relatively adjusted as shown in l1`jgure 6 so as to permit passage therebetween of the die -D and to position the lower inner edges of the stripper bars in slightly overlapping relation with the opposite ends respectively of the bearing segments E. The stripper bars 38 are also properly positioned vertically in the slots 37 so as to position the bars 38 above the bearing segments E whereby they latter may be passed beneath these bars. Y

Referring to Figure 7 r we have shown in dotted lines E, somewhat exaggerated for purpose of illust-ration, the cylindrical bearing or like segment before the close-in operation. After operation of the close-in die D, the radius of the segmental bearing is decreased froin R to R, the latter radius being desired in the iinal product. By reason of this close-in operation, the longitudinal edges of the bearing segment are forced below the original diameter F-G so as to provide an cnA amount of material49 ofthe bearing segment E in excess-of a true semi-cylinder. `Thus,

the edges ofthebearing segment 'E may then i be'machine `finished by removing the material 49 so as'to finally produce a bearing segment of Ythe desired radius and of a truesemicylindrical shape.

, The bearing segments E are placed on the loading platform B preferably arranged Y platform. f moved between the guide bars 14 andA around `the positioning land guide bars 18 until the tandem as shown in Figure. 3 aind`4,fthe ad- -jacent cylindrical segmentsfbeingrin contacting relation. The operator thus moves the lineof ,bearing segments tovvard` the die D by exerting a pushing force on the bearing segment E last positioned on the loading The bearing segments are thus platforms B and C and the buffer plates 17 tand 17a are substantially filled. The abutment rods 47 are positioned toward each other andaxially so as to engage the end of the line" of segmental hearings asshovvn irl-Figure. 3, the rods 47 being axially' adjusted so `as to properly positiona bearing segment in line with the vertical movement of the closesegment at the end of the lineengaged by the in die D. With the parts in this position theV die D is causedto move downwardly into engagement with the aligned bearing segment so as to perform the close-in operation decreasing'thefradius R of the bearing segment E to the radius R of thejbearing segment as' illustrated in VFigure `7. On the return upward stroke ofthe die D, the Ybearing segment E vvill 'be engaged bythe stripper bars 38 so as to ejectthe bearing segmentfrom theV die D.

f The operator Will then remove the bearing rods 47 andthe Whole line of bearing segments Will'be advanced from the loading plat-` form7 the length of one of the bearing seg- `ments in order toplace the next segment in proper position for engagement and operation by the close-indie D. As soon as the line of bearing segments is advanced, the operator placeson the loading platform-at the beginning of the lineof-segments, another bearing segment E and the cycle is thus repeated.

It will `be apparent that We have provided a xture for successive operationen a plurality-of bearing segments for closing-in the same, the bearing segments beingv guided in continuous fashion into proper position for the closing-in operation.` It will further be noted lthat vve have provided a fixture which is adjustable for accommodating varyingsize cylindrical bearing or like segments.

. l/Vhileit is believedfrom the foregoing description.,` the nature and advantageof our invention Will be readily understood, Wedesire to have it understood that We do not limit ourselves to What is herein shown vand described and that such changes maybe resorted fall Within "the scope of ing or like segments comprisinga recipro-` cable close-in die, and means for supporting and 'guiding-a `plurality "of the cylindrical segmentsinto position successively for operation thereon by said die,\ said supporting means affording a sliding vsupporting engage-rl Y ment With the longitudinal edges `of the cylindrical segments.- i l l 3. Afixture for closing-1n cylindricallbearing or like segments comprising a loading platform, an unloading platform, a recipro-f cable close-in die, meansfor guiding a plurality ofthejcylindrical segments arranged tandem With adjacent cylindrical segments in contacting relat-in duringfmovementthereof from the loadingto theunloading platform*7 said die beingpositioned for operation on the cylindrical segments' as they are successively moved from the `loading to the unloading platform.`

ing'orlike segments comprising a reciprocable close-1n die, means for supporting and guiding aplurality Vof theicylindrical segmentsv into position successively for operation there- "on by said die, and stripper mechanism cooperating Withthedie and engageable With f the cylindrical segment operated on by said die for stripping samefrom the latter. p

5.` A xture for closing-in cylindrical bearing or like segments comprising areciprocable close-in die, means for successively guiding a plurality of the cylindrical segments through a predetermined path into position beneaththe path of travel of said die. for

operation thereon by said die, and stripper mechanism cooperating with the die and en- 'gageable With the cylindrical segment operated on by said die for stripping same from the latter. p

6. A fixture for closing-in cylindrical bearing or like segments comprising a loading platform, an unloading platfornna reciprocable close-indie,` means for guiding Va plurality of the cylindrical segments during movement thereof from the loading to the unloading platform, said diebeing positioned for operation on the cylindrical segments as they are successively moved from the loading to the unloading platform, and stripper mechanism cooperating With the die and engage- 1"' isc oaf v "4. 'A fixture for closing-in cylindrical bear-"faimV able with the cylindrical segment operated on saine vfrom the by said die for stripping the latter.' i,

7. A fixture for Vclosing-in cylindrical bearing or like segments comprising a reciprocable close-in die,means for supporting and guid- 8. A fixture for closing-incylindrical bearing or like segments comprising a loading platform, an unloading platform, a reciprocable close-in die,f1neans for guiding a plurality of the cylindrical segments-during movement thereofifrom the loading to the .unloading platform, said die being positioned for operation on the cylindricalsegments `as they are successively moved .from the loading to the unloadingplatform, and a pair of stripper bars respectively arranged on opposite sides of the path of'movement of thediefor cooperating therewith'to eject the cylindrical segments therefrom.l f

9. A fixture for closing-in cylindrical bears ing or like segmentscomprisingv a reciprocable close-in die, means for support-ing and guiding a plurality'. of the cylindrical segments into position successively for `operation Vjchereon'by said die, a pair of stripper bars respectively arranged on opposite sides of the path of movement of the die for cooperating therewith `tol eject theV cylindrical segments'therefrom, said stripper bars extending transversely of said cylindrical segments and above the same.

l0. Al fixture for closing-in cylindrical bearing or like segments comprising a reciprocable close-in die.y means for supporting and guiding a plurality ofV the cylindrical segments into. position successively for operation thereon by said die, a pair of stripper bars respectively arranged oncopposite sides of the path of movement of the die for cooperating therewith to eject .the cylindrical segments therefrom, said stripper bars extending transversely of said cylindrical segments and above the same, and means'perniitting relative adjustment of the stripper bars.

11.7A fixture for'closing-in cylindrical bearing or like segmentscomprising la loading platform, an unloading platform, la reciprocable close-in die, means for guiding a plurality of the cylindrical segments during movement thereof from the lcz-iding to the unloading platform, said die being positioned for operationoii the cylindrical segments as they. are successively moved from the loading to the unloading platform, said guiding means comprising Yrelatively adjustable guide bars.

12. A fixture for closing-in cylindrical bearing or like segments comprising a recipiocable close-in die, means for supporting and guiding a plurality of the cylindrical segments into position successively forroperation thereon by said die, bars engageable interiorly of the cylindrical segments and cooperating with thedie for positioning the cylindrical segments and means for relatively ing width cylindrical segments. Y 'i 13. "A close-in fixture for cylindrical bearing orlike segments comprising a buffer plate adapted vto receive a cylindrical segment, positioning means carried by the buffer plate and engageable interiorly, of said cylindrical segment,'and a reciprocable close-in die adapted for movement toward the buffer plate for operation on the cylindrical seg- Vmoving said bars for accommodating varyinent for securing the desired radial dimension thereof.

' 14. A close-in fixture lfor vcylindrical bearing or likesegments comprising a buffer platev adapted to receive a cylindrical segment, positioning means for properly locating the'c'ylindrical segment on the buffer plate, a reciprocable close-in` die adapted for movement toward the buffer plate foroperation on the cylindrical segment to secure the desiredv radial dimension thereof, and means for `stripping the cylindrical segment fromfth'e die.

l5. Av close-in-fixture for cylindrical bearing or like segment-s comprising a buffer lplate adapted to receive fa cylindrical segmentfpositioning means for properly locating the cylindrical segment on the buffer plate, a reciprocable close-in die adapted for movement toward the buffer plate for operation on the cylindrical segment to secure the desired radial dimension thereof, and a pair of stripper bars respectively arranged on opposite sides of thel path of movement of the die for cooperating therewith to eject the cylindrical segment therefrom.

1G. A close-in fixture for cylindrical bearing or like segments comprising a buffer plate adapted to receive a cylindrical segment, positioning means for properly locating the cylindrical segment on" the buffer plate, a reciprocable close-in die adapted for movement toward the buffer plate for operation on t-he cylindricalr segment to secure the desired radial dimension thereof, a pair of stripper bars Vrespectively arranged on opposite sides of the path of movement of the die for cooperating therewith to eject the cylindrical segment therefrom, and means permitting relative adjustment of said stripper bars axially of the cylindricalsegment.

17. A close-in fixture for cylindrical bearing or like segments comprising a buffer plate adapted to receive a cylindrical segment, positioning means carried by the buffer plate and engageable interiorly, of said cylindrical segation thereon by said die, including rela-V members relatively adjustable transversely of the cylindrical segments.

18, A fixture for closing-in cylindrical bearing or like segments comprising a reciprocable close-in die, means for supporting and guiding a plurality of the cylindrical segments into position successively for opertively adjustable members engageable with the longitudinal edges of said cylindrical segments, and adjustable means cooperating With the die for positioning the cylindrical j segments.

19. A fixture for closing-in bearing or like segments comprising a loading platform and unloading platform, a reciprocable close-in die, means for guiding a plurality of the cylindrical segments arranged tandem with adjacent cylindrical segments in contacting relation during movement thereof from the' loading to the unloading platform, said .means including members positioned `upon said loading and unloading platforms and being adjustable relatively to one another` for accommodating bearings of varying Widths. 1 Y

20. A fixture for closing-in cylindrical bearing or like segments, comprising a reciprocable close-in die, supporting means for the bearing segments extending upon opposite sides of the die, and means upon the supporting means for guidingrv a train of segments to and beyond the die with adjacent segments in contacting relation, and means for accurately positioning the segments in alignment with the die to be operated on thereby.

21.A fixture for closing-in cylindrical bearing or like segments comprising a. re-

ciprocableclose-in die, supporting means for the bearing segments extending upon opposite sides of the die, means upon the supporting means for guiding a train of segmentsto and beyond said die with adjacent segments in contacting relation, and means cooperating with the bearing segments beyondV the die for arresting movement of the train of segments toposition a bearing segment in accurate alignmentVv with the die to be operated on thereby. i

22. A fixture for closing-in cylindrical hearingv or like segments comprising spaced loading and unloading platforms arranged in substantially the same plane and in alignment vvitlieach other, means for positioning a Vplurality of the cylindrical segments -in alignment and `incontact-ing relation with each other onsaid loading and unloading platforms, and a reciprocable close-in die interposed between the two platformsxin a ciprocable close-in die positioned for operation upon the cylindrical `segments as they are successively moved from the loading to the unloading platform, and means upon the unloading platform cooperating with the bearing segments thereon to accurately position the segments upon the unloading platform in proper alignment With said die.

24. A fixture for closing-in cylindrical bearing or like segments comprising loading and unloading platforms, means for guiding a plurality of cylindrical segments with ad,- jacent segments in contacting relation during movement thereof along both of said platforms, a reciprocable'close-in die positioned for operation on the cylindrical segments as they are successively moved from the loading to the unloading platforms, andmeans upon the unloading platform including a.

FREDERICK C. JONES. VINFIELD S. ENDERICH.

' tures.

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