Патент USA US2404161код для вставки
July 15;.1946‘ I 2,404,161 B. F. BOWER INDEXING AND CHUCKING DEVICE ‘4 Sheéts-Sheetyl Filed May 28‘, 1é45' . , veggie-r, [n / .3 ran, . ower-f @ July-16,1946. 2,404,161 B. F. BOWER‘ I INDEXING AND CHUCKINGJDEVICE 4 Sheets-Sheet.- 2 Filedi-May .28, 1945 wi-./54/”,/lW. .l| w. mi_ my ,7? 4TM» _ .1. _. f .w ,v w yr an . @m WQQXQ-“Yli im . _ _ /. .7 ,w w”. . , . J July 1'6, 1946.‘ V B. "F. BOWER _ ' 2,404,161‘ IND-BIKING AND ‘CHUCKING' DEVICE I 'FiQéd May 28, 1945 ’ ‘ ’ J.‘ ' >4 Sheets-Sheet 4 jyranf?awer , I x . ' 05a 2,404,161 Patented July 16, 1946 UNITED STATES PATENT. OFFICE i INDEXING AND CHUCKING DEVICE V ' ,Byron F. Bower, Aurora, 111., assignor to Pines Engineering Company, Aurora, 111., a corpora tion of Illinois ' 1 Application May 28, 1945,‘ Serial No. 596,247 12 Claims. (01. 82-2) V The present invention relates to indexing and chucking devices ‘for machines that operate upon one or both ends of a length of stock such as a tube or a rod. It is the principal purpose of the invention to provide means to feed and position the work at a high rate of speed so that the operating tools can be used to the maximum capacity with a minimum delay in the position ing of new work and, the discharging of v?nished work. ’ It is alsothe purpose of my invention to provide in combination a reel feeding mechanism and an automatic self centering chuck so arranged that the lengths of tubing and the like can be ad vanced to chucking position along a proper cen ing lengths of stock like. The present whereby the stock source (not shown) 2 ~ such as tubing, rods and the invention provides means can be fed from a supply and held in a proper posi tion for the cutting or ?nishing operation to be performed thereon by tools located at one or both ends of the’ work holding device. As shown in the drawings a base Ill carries two spaced apart machines II ‘and I2. ‘The base ID has a track I3 10 on which the machines I I and [2' may be moved toward and away from each other to accommo date work of different lengths. Normally one‘ of the machines I2 will be placed at one end of the . base and the other machine will be adjustable 15 with respect to the machine I2 along the track ter line and then seized by the chuck with‘ a ‘high degree of accuracy and speed.“ It ‘is also the having cutting or ?nishing tool heads l4 and l5v purpose of ‘the invention to provide a novel mech thereon for performing work upon a work piece 1 I3. I have shown the machines II and I2 as anism for opening and closing the chuck itself I6. The heads I4 and I5 are of course movable in such a fashion that the work is rigidly held 20 toward and away from the work. 7 when the chuck is closed but the chuck is opened The feeding mechanism by which the work is wide so that the reel can move the work into fed to position rbetween the heads I 4 and I5 com the chuck regardless of great ‘variation in the prises a shaft I‘! which is .journaled in two bear size of the work. a > v ings I8 and I9 carried by the frames of the ma The nature and advantages of my‘ invention 25 chines I I and I2. These bearings are mounted .will appear more fully from the following de upon plates ‘20 and 2| of the aforesaid frames. scription and the accompanying drawings where Two notched discs 22 and 23 are provided with in a preferred form of the invention is shown. hubs 25 and 26 that are fastened upon shaft IT. It is to be understood however, that the drawings A ratchet wheel 21 is also secured upon the shaft and descriptions are illustrative only and that '30 If! so that it may be utilized to rotate the shaft they should not be considered as limiting the in and. the discs 22;, and 23. In order to rotate the vention except insofar as it is limited by the ratchet wheel 21 I provide a link mechanism 28 claims, - In the drawings: comprising two bars 29 and 30 connected together by a pin 3| that is adapted to ride over the teeth Figure 1 is a view in side elevation of a tube end 35 21a of the ratchet wheel 21 and turn the ratchet ?nishing machine embodying my invention; wheel step by step. The link 28 is pivoted at 32 Figure 2 is a cross sectional view taken on the to a. piston rod 33. The piston rod 33 is secured line 2—2 of Figure 1; to a piston 34 and ‘a hydraulic cylinder 35 to Figure 3 is a detailed view on a smaller scale which hydraulic ?uid is supplied ?rst to one end of an adjustable support plate and its mounting. 40 and then to the other end from a suitable source. means; The piston 34 is thus reciprocated at de?nite in Figure 4 is a cross sectional view on the line tervals to advance the discs 22 and 23 in the direc 4-—4 of Figure 3 illustrating the mechanism by tion of the arrowshown in Figure 2 in order to which the adjustable support plate is moved; bring the work pieces I6 into position between Figure 5 is a cross sectional view through the 45 the-heads I4‘ and I5. ' chuck operating mechanism showing a modi?ed The Work pieces such ‘as I6 may be supported form of the invention and; along side the discs 22 and Y23 by a platform '36 Figure 6 is a side view partly in section taken which is indicated on Figure 2 of the drawings. at right angles to Figure '5. ‘ These platforms are usually inclined so that the Referring now in detail to the drawings, the 60 work may roll down against- the discs and fill the present invention is embodied in a tube ?nishing notches as the discs are turnedQf The edges of mechanism although it will be obvious from the the ‘discs will of course, ‘keep the work pieces in description that the invention is not limited ‘to place until one of the notches‘is aligned with the such machines. The ‘invention is applicable to V foremost workpiece- Between the machine's. ;I}I' various'types of vmachines for‘ cutting and ?nish 55 and I2 there ‘is a ‘frame“workf?tliatgfits-civer‘gthe‘? aeoaiei . é. . 4 A coupling 86 is provided between the ends of the bed I!) andengages the track l3. This frame is clamped in position by two wedge shaped bars link13 so that a limited amount of adjustments of the length of the link 13 may be made. A cylin 38 and 39 which extend between front and back der BI is carried in two depending portions 82 of - portions 49 and 4| of the frame and the adjacent , beveled faces of the track l3. The bars 38 ‘and 39. are held in place by screw bolts 42 and 43. the frame 31. The cylinder _is pivoted on a cross rod 83 that is mounted on the depending portiom; The frame 31 has two adjustable support plates Miami 45 at the opposite ends thereof.v These support plates are movable up and down and on shown) supply hydraulic ?uid toithe cylinder 8% 82 of the frame. . Suitable connections " (not to reciprocate the piston rod 15. There is, of the frame 31 by means of studs that are fastened <10 course, a piston 84 within the cylinder 8| on the 7 ‘ in the frame 31 and slots in the plates. InFigJ 1 end of the rod ‘i5. ‘The form ofv chuck closing device shown in ures 3 and 4, the adjusting means for the plates I Figures 5 and; 6 comprises a guideframe made 44 and 45 are shown. Each plate’ is mounted on’ two studs 46 and 41 that are carried byy'the frame‘ I _' :up of one lu-shaped ‘casting 95 and two end plates 31. . ‘Each plate has three Vertically running slots 15' '86‘ and-,8]- that are bolted to the casting 85 at their side edges by bolts 88. The casting has a 48 through which the studs and a lug 49 extend. The frame alsov has a liftingroller 59 pivoted 'cylinder 69 secured to the bottom thereof by fourirods 96 that extend througha head 9| of ' thereon by means of a pivot pin 5|. This roller. the cylinder and'are threaded into the casting. has a handle 52 thereon‘by which it may be roe“ tated on its pivot so as to raise and lower the 20 The upper end of the'cylinder is seated in‘ a groove ‘92 in the bottom of the casting 95. vA plate 44 or 45 with'respect to a cross bar 540i the-‘frame 31. It is essential that the plates 44 and 45 be readily adjustable since the work pieces piston. 93 in the cylinder has its piston‘ rod 94 ride ion these plates as- they are brought/into bottom of ‘the casting.‘ A packing 99 is heldf‘in position between the heads l4 and I5. ' > The plates 44 and 45 can be adjusted to satis extending 'up through an aperture 95 in‘ the 25 place by a capSi that‘ is fastened'by screws 93 to factorily align the work pieces with the’ heads l4 and‘ I5 but in order for the work pieces to be actedv upon by the'cutting or ?nishing tools‘ it the casting. ‘ ' ' ' - ' Each ‘of 'thevend'pl'at’es .86 and 87 has two guide‘ ribs Y99 'and I99 formed'thereon to direct two shoes HM and I92 that are carried by a cross head I93 on the. upper end of the piston rod 94. must be held rigidly in place and this is accom plished by opposed pairs of chuck jaws 55 and 56. Wear. plates: H14 and i|05f are fastened to the ThesejaWs areadjacent to each of the end discs inner jaws of the endplates .86 and 8] for-the 22 and 23. ‘In the case. of extremely long work faces of the shoes‘ i?lfand-alllzjto ride upon. ' pieces it may bedesirable to have several inter The cross headsupports two shafts I66 and mediate discs like 22 and 23 between the end 35 I61. eachJoflwhich has two cam rollers: “18 jour-j discs 22 and 23. However, only two'sets of chuck nalled magenta opposite sides of the cross head. jaws are needed.- These chuck jaws are pivoted ' upon a shaft 51 that is carried in ‘the frame 31. Each 'of the jaws has a movableiliner 58. ‘ The These cam rollers_;engag_e opposite chuck. jaws I99: and’ H6. - The chuck jaws arepivotedruponl two stub shaftsH-l and “2 that are ‘mounted liners 58 are made up' in differentsizes to accom-. 40 in- the opposite walls of the casting ‘85.1 The jaw modate variations in size of the work pieces to be |991has its, bearings on the inner ends ofjthe held. ’ The chuck jaws 55 and 56 are provided with shafts; while the jaw; | I9 has its'bearings between plane faces- 59 and 69 which faces are tapered with respect to a vertical plane through the chuck jaws ‘when closed and this taper is very slight. Wear plates 60 and 6| are provided on the tapered the ?rst named bearings‘ and the :side walls of the'casting. ' ' ' as the :cross head is lowered. The guides 99 and lililiand the‘platesi I04 and... I95 insure'accurate‘ guiding .of .thelcros's'. head in it's'vertical move a jaws 55 and 56 on a work piece l6} -It will be ' noted that the chuck jaws, when'the'y are in opened (dotted line) position, are below the top edges of the supporting plates 44 and Misc‘ that they do not interfere with ‘the movement of 'a work piece when the shaft H is rotated to bring the work into position. 1 HIS-and [l9 as illustrated in Figure 5 show how the jaws open by riding down on the rollers I98 faces 59 and 66 for engagementrwithchuck‘clos ing rollers 62 and 63. The‘ chuck closing rollers 62 ‘and 63 move between the dotted and the full line positions shown in Figure 2 to close the chuck _- The full and'dotted line positions of the jaws. mentf‘ 1' > - - ‘7 The v?nal clamping action of the (jaws-is ob I tained by providing tapereds'ide faces .| |3 and “4 onthe jaws I09 and “9. 'These faces are provided by‘ mounting tapered wear plates I ||5 and~| |6»on' the chucks. These plates may’well i be of hardened steel and‘ tapered to suit the particular'work. -‘ A taperof' about '5 degrees from The meansrfor operating the rollers 62 and 63 is best shown in Figure 2. The roller 62 is carried the vertical is adequate in most cases. ' The oper on a bell crank 64 which in turn is pivoted on a ation of the wear plates is to make the ?nal clos shaft 65 mounted on the framework 31. The ‘lower arm of the bell crank 64 is bifurcated to receive‘one end of a link 66 which is secured by a pin 6'! that extends through one side of the bi furcated end of the bell crank and is threaded into ing of the chuck'jaws' very slow and very power ful as the cross head‘mov'es'lupward at the‘ ?nal part of: its stroke. All of the closing: pressure is‘ 'onr-therollers H18 ‘and notbn thev pivots'of the‘ the opposite side. The other end of the link 66 ‘It_is believed that V the _. Inature'and advantages is secured to the upstanding arm of a bell crank ' ' jaws.->'- .69 which is pivoted on a shaft 10. The shaft '16, 'is secured in the frame-:31. The other armv ‘H of the bellcrank 69 is pivoted by‘a pin 12 to an ad justable link 13. One end of the linkv13 is piv oted by a pin 14 to apiston rod 15. The other end. of my invention will -.be_clear to those skilled in the art to. which it'isdirected. 'Itjis evident 70 that ‘various minor modi?cations may be made‘ 1 without, departing from they spirit and scope of thelinventionj cated end 11. of a bell crank 18. ,The' bell ‘crank’ pivoted on a shaft'l9 and carries the roller 63. ' ‘ i " ' ' ' r ' “ " I , , Having'thus' describeaimyinvehugn I 01m. J of the link 13 is pivoted by a pin ‘l6 to the bifur- ' 75 ,1.;’_Indexing, andgcliucking. mechjamsmtfor. p sitioning and holding‘work pieces suchjas lengths 2,404,161: 5 tioning, and holding work piecessuch. as lengths of tubing and rods, said: mechanism comprising spaced apart guide members having upper edges‘v of tubing and rods, said mechanism comprising spaced apart guide members having upper guide edges along which the' work pieces may. bemoved ; along which the work pieces may be moved to position, opposed chuck jaws pivoted to close to position, work advancing, means comprising a shaft above said members, spaced circular carriers ?xed on said shaft and having notches in their upon a work piece positioned on said' members, and to move below said guide edges for passage of the work piecesto and from operatingposi peripheries for seating the :work pieces, opposed tion, and means to close said chuck jaws com, chuck, jaws pivoted to close upon a workpiece prising cam faces on the outer opposite surfaces of said jaws, rollers engaging said cam faces, 10' positioned on said members, and. to move below said guide edges for passage of the work pieces to and from operating position, and meanszto close said chuck jaws comprising cam faces .Ol'lithe jaws from open'position-into closed position. outer opposite surfaces of said jaws, rollers, en-i 2'. Indexing and chucking’ mechanism for pc sitioning and holding work pieces such as lengths 155: gaging said cam faces, and movable. supporting means for said rollers operable to move the rollers of tubing and rods,’ said mechanism comprising upwardly to‘ lift the jaws from openposition into spaced apart guide members havingiupper‘guide and movable supporting means for said rollers operable to movevthe rollers upwardly to lift the edges along, which the, work pieces may be moved closed position. , I , ~ , . to position, opposedchuck‘jaws pivotedto'close 6. Indexing and chucking'mechanism forxp'osi of the work pieces to and from operating posi spaced apart guide members having upper guide. edges along which the work pieces may be moved upon a work piece positioned on said'members, 20 tioning and holding work pieces such as lengths of’tubing and rods, said mechanism comprising: and to move below said guide edges for passage ‘ tion, and means to close saidchuck jaws com prising cam faces on the outeropposite surfaces to position, work advancing means comprising a shaft above said members, spacedcircular car?‘ of said jaws, rollers engaging said cam faces,iand riers ?xed on said shaft and‘ havingnotches in" movable supporting means for said rollers oper able to move the rollers upwardly to lift the jaws from open positioninto closed position, the supporting means comprising opposed bell crank levers, an operating member and means connect their peripheries for seating the workpieces, the upper guide edges on said guide members beingv substantially segments of a circle about an axis 30 in substantially verticalialignment with said shaft, opposed chuck jaws ‘pivoted to close upon a‘ work piece positioned on said members, and. to‘ move below said guide edges for passage of the work pieces to and from operating position, and ing the member and the levers for, moving the rollers in unison. V V 3. Indexing and chucking mechanism for pc sitioningand holding work pieces such as lengths 35 means to close said chuck jaws comprising cam of tubing and rods, said mechanism comprising faces on the outer opposite surfaces of said jaws, spaced apart guide, members having upper guide rollers engaging: said cam faces, and movable edges along which the work pieces may be moved supporting means for said rollers operable to to position, opposed chuck jaws pivoted to close move the rollers upwardlyto lift the jaws from upon a work piece positioned on said members, open position'into closed position. and to move below said guide edges for passage of the work pieces to and from operating posi 7 . Indexing and chucking mechanism for posi tioning and holding work pieces such as lengths tion, and means to close ‘said chuck jaws com of tubing and rods, said mechanism comprising prising cam faces on the outer opposite surfaces spaced apart guide members having upper con of said jaws, rollers engaging said cam faces, and 9. i .cave supporting and guiding surfaces, along movable supporting means for said rollers oper which the work pieces may be moved to position, able to move the rollers upwardly to lift the jaws a work carrying reel for moving the work pieces from open position into closed position, the sup into position, opposed chuck jaws pivoted to close porting means comprising a slide carrying said upon a work piece positioned on said members, rollers, and movable, to close the jaws, upwardly 50 and to move below said guide surfaces for passage , in a direction of a line through the pivotal axis of said jaws, and the center line of the jaws of the work pieces to and from operating position, 1 and means to close said chuck jaws comprising when closed, the cam faces on said jaws di cam faces on the outer oppositesurfaces of said ’ verging toward the free ends of the jaws whereby jaws, rollers engaging said cam faces, and mov- ’ said rollers wedge the jaws toward each other 55 able supporting means for said rollers operable to as they are raised. _ move the rollers upwardly to lift the jaws from 4. Indexing and chucking mechanism for pc open position into closed position. sitioning and holding work pieces such as lengths 8. Indexing and chucking mechanism for posi of tubing and rods, said mechanism comprising tioning and holding work pieces such as lengths spaced apart guide members having upper guide 60 of tubing and rods, said mechanism comprising spaced apart guide members having upper con edges along which the work pieces may be moved to position, a work carrying reel for moving the cave supporting and guiding surfaces, along which work pieces into position, opposed chuck jaws the work pieces may be'moved to position, a work pivoted to close upon a work piece positioned on 65 carrying reel for moving the work pieces into position, said guide members being adjustable said members, and to move below said guide edges for passage of the work pieces to and from oper vertically for positioning different sizes of work, opposed chuck jaws pivoted to close upon a work ating position, and means to close said chuck jaws comprising cam faces on the outer opposite piece positioned on said members, and to move surfaces of said jaws, rollers engaging said cam 70 below said guide surfaces for passage of the work pieces to and from operating position, and means faces, and movable supporting means for said to close said chuck jaws comprising cam faces on rollers operable to move the rollers upwardly to - the outer opposite surfaces of said jaws, rollers lift the jaws from open position into closed po engaging said cam faces, and movable supporting sition. 5. Indexing and chucking mechanism for posi 75 means for saidrollers operable to move the rollers ' 2,404,161: 7 8 upwardly to lift thejaws from open positioninto closed position. ' , .. , 9. Mechanism for positioning and, holding work pieces such as lengths of tubing and rods, compris ing. spaced supports, opposed chuck jawsforseiz ing a work piece [on said supports, pivots for said I jaws below the levelof the supports, and means to close the jaws comprising bearing means on, . .11; Mechanism for positioning 'and holding work pieces'such as lengths of tubing and rods,’ comprising spaced supports, opposed chuck jaws for seizing a work piece on saidsupports, pivots for said jaws below the level of thersupportavand means to close the jaws comprising bearing means on the outer opposite sides of said chuck jaws, spaced apart bearing members engaging said ’ bearing means, and movable supporting means for’ apart bearing members engaging said bearing 10V said bearing members operable to raise and lower them in unison along lines of increasing angu means, and movable supporting means for, said I the outer opposite sides of said chuck jaws, spaced bearing members operable to raise and lower them in unison along lines'of decreasing angularity with respect to the jaws as the jaws are brought to closed position, whereby to provide a powerful wedging action clamping the jaws to the work. 10. Mechanism for positioning 1 and holding 7 larityvwith respect to the jaws asithe jaws are. brought'to closed position, whereby to provide a powerful wedging action clamping the jaws to Lthe'work, 'said supporting means comprising a vertically slidable drive member having opposed chuck jaw engaging members secured thereon. ' _ ‘ "12,. Mechanism, for‘ positioning and holding work pieces such'as'lengths of tubing and rods, for seizing a work piece on said supports, pivots, 20; comprising spaced supports, opposed chuck jaws work pieces such as lengths of tubing androds, comprising spaced supports, opposed chuck jaws for said jaws below the level of the supports, and . means to close the'jaws comprising bearing means on, the outer opposite sides of said chuck jaws, spaced apart bearing members engaging said 'bearingmeans, and movable supporting means .for said'bearing members operable to raise and lower themin unison; along lines of decreasing ~ angularitywith respect to the jaws as, the jaws are brought to closed position, whereby to provide for seizing a workpiece on said supports, pivots for said jaws below the level of the supports, and means to close the jaws comprising bearing means on the outer opposite sides of said chuck jaws,v spaced apart bearing members " engaging said"? bearing means, and movable supporting means I for said bearing members operable to raise and 'lower them in“ unison along'lines of increasing angularity with respect to the jaws as the jaws are a powerful wedging action clamping the jaws to 80; brought to closed position, whereby to provide a' powerful wedging action clamping the jaws to the the’ work, said supporting means comprising two ‘ bell cranks pivoted on horizontal axes on opposite 1 sides of the jaws, the bell cranks having means at work, said supporting means comprising a ver tically slidable drive member having ‘opposed one end engaging said bearingmeans, the other . chuck jaw engaging members secured thereon, ends of said bell cranks beinginterconnected by 85 and said bearing means'comprising tapered plates two links and a lever, and a common drive mem- 7 bar operatively securedto the lever andone of the links. 7 on the chuck jaws. - BYRON F. BOWER. .