US2473445A - Spring cambering machine - Google Patents
Spring cambering machine Download PDFInfo
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- US2473445A US2473445A US740945A US74094547A US2473445A US 2473445 A US2473445 A US 2473445A US 740945 A US740945 A US 740945A US 74094547 A US74094547 A US 74094547A US 2473445 A US2473445 A US 2473445A
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- plates
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
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- Another object of the inventi ⁇ on-isthe provision of mechanism'. forn automaticallytransporting heatedlleafsprn'gs-froml af-heating furnace to a pair ofdiesfin 'alternating relation for the cambering andiquenching-ofYtheplates,l each of said dies receivingfdirent'platesf than thev other die.
- a ⁇ further' objectl oftheinvention is' the provisionVIV ofm'echa'nism i associated with' f a heating furnace-and Ltwov dies for automatically conveying or transportingtvvofdierent'types of leaf spring plates-- through" the heating furnace and fordliverixig-"the plates-'totheir respective dies in alternate'rlationl'and'lordrly arrangement for the canibeing! and "quench-ing thereof.
- a still furthery obect* of fthe' invention' is the provision of 'i combination" mechanismv for' automaticallyV carrying out” the heating, cambering, and" quenchingof twodifferent' types* of leaf spring plates* thi'ough”the utilization of a novel arrangement-cfa*singleheating furnace and two dies, one "'forf each' type of plate and ⁇ mechanism associated With""th ⁇ ffuri1ace a'iiddies "for proper- 2 ly transporting v therplatesithrough the'i furnace and thence alternately to the dies forthe camberin'g thereof whereinfth'e platesfaref loaded in preari'a'ngdordrfinitheifurnac'efor coordinated deliveryby.
- thiefv conveyingffmechanism to the prper diei
- Other ⁇ obj ects2-andfadvantagesof the invention will: appearfi'initliefollowirig description taken in' Lconnectionwith
- Fig.'1 isa fragmentary; p'artially'nV sectionalized, side' felevatiorialfview; ofi a #furnace and' automatic leaffspring;'platetransporting' anddelivery mechanisrnV associateci.- ⁇ therewith;v
- Figi 2 is'iaift'op: plan''-viei'yfofi Fig: 1
- Figi. 3l is. aside piani-view' of ⁇ mechanism for transf erringf the? s'elettedfn-leaf ⁇ 4 spring? plates from the" rollersz. off the delivery ⁇ mechanism to. their res pectiveil die:
- Fig: ⁇ 9g is' ar fragmentary side' plan'y vi'evvk of the cam' mec'l'rar'i'ism:V forr the;v lifting? .meansv of the transportingltmechanismeituatedin the furnace;
- Fig; -1f1' is "a-sidefpl'airivievffof th'eimicro-switch mechanism associatedwith the ⁇ rollers' for controll-ing;l the delivery means Fig.: 14fisa .top-planwviewiof thel spring-v plate pushenmeans *shewn'fin Fig: 1-.
- the finstantfinvention- was e-devised'f o1' the 'purposeof providing an automatic setiV up -for the heating; ,-camberings and quenching -offtWo different typescf 1eaf springplates; each-requiring a differentdie for the camberingthereof through thel utilization of a fsingle-fh'ea-tingv furnace and two4 diesffor the respective7 ⁇ different plates arranged appropriately relative to l the*V furnace and having., incerporated ftherevvith.- ⁇ mechanism for transporting ,thef platesthrough the furnace, mechanism" forfnlovrfg-thr plates from the furnace, mechanism for moving the plates to delivery means therefor, mechanism for alternately delivering the plates in accordance with prearranged loading in the furnace to their respective dies, and mechanism for inserting the plates in the dies, all of said operating mechanisms being automatically switch or cam controlled to provide for the coordinated timed operation thereof.
- the mechanism for alternating the delivery of the plates to their proper die forms the fundamental concept of this invention in that it provides the connecting link between the furnace and dies permitting the use of one furnace to supply two dies and, as such, consists of rollers which are reversely rotatable by appropriate gearing, clutching, and controls therefor actuated by timing cams effective to cause rotation of the rollers in one direction during one phase of operation for delivery of one type of spring plate to one die and rotatable in the other direction for the delivery of another type of spring plate to the other die.
- I represents generally a combination mechanism for the automatic handling of leaf spring plates through the steps of heating, cambering, and quenching, comprising a heating furnace I2, a pair of cambering dies I4, associated with appropriate oil quenching tanks I6, a conveyor means I8 arranged in the furnace for transporting the spring plates through the furnace in orderly parallel alignment, mechanism for unloading theplates from the furnace, mechanism 22 for pushing the plates down a suitable slide provided to delivery mechanism 24, said mechanism 24 providing for alternately moving the spring plates in one direction or another for ⁇ delivery to one die or another, a pair of mechanisms 26, each for association respectively with one of the dies for inserting the plates in the die for the cambering thereof, said dies I4, conveyor means I8, and mechanisms 20, 22, 24, and 26 all being power driven and controlled relative to one another for the coordinated timed operation thereof.
- the conveyor means I8 which comprises horizontally arranged arcuately horizontally ⁇ movable bars 28, cooperable with horizontally arranged vertically movable bars 30 for transporting the spring plates in orderly parallel arrangement through the furnace is more specifically described in my copending United States application, Serial No. 715,747, led December 12, 1946.
- the unloading mechanism 20 includes a plurality of arms 3
- the mechanism 22 for pushing the plates down the slide bars 32 after removal from the furnace after the heating thereof and for delivering said plates to mechanism 24 comprises a plurality of pusher arms 34 affixed at spaced points upon a longitudinally extended carriage 36 arranged for sliding movement upon rollers 38 attached thereto along rails or tracks 40 supported between the front 42 of the furnace and a vertical support 44 mounted intermediate the quench tanks.
- the arms 34 are adapted through the provision of suitable lever and linkage 46 to be pivoted in such a way that when the carriage is being pulled away from the furnace, the arms will be in dotted line position effective through the fingers 48 on the ends thereof to push the plates along slides 32 arranged adjacent the exit from the furnace and mechanism 24.
- the leverage and linkage 46 is actuated through power driver lever means 50 pivoted at a point on a horizontal support 52 affixed to support 44 effective during the movement of the carriage toward or away from the furnace as the case may be to move the arms 31E to full line position during the course of movement toward the furnace and to dotted line position as it moves away from the furnace. With the arms in dotted line position, the fingers 40 thereof engage the plate deposited on the slides b y arms 3
- the alternate delivery mechanism 24 comprises a plurality of driven rollers 54, 56, and 53 arranged in line with the axes of rotation parallel to one another, said rollers 54 comprising a group located centrally of the rollers 56 and 55 and being driven by reversing mechanism 69 for rotation in either direction depending upon the phase of motion to which the machine is set.
- the rollers 56 are associated with one of the dies I4 and one of the mechanisms 26 for positive continued rotation in one direction and the rollers 525 are associated with the other die I4 and mechanism 26 for continued rotation reversely to rollers 56.
- the mechanisms 26 each include arms 62 adapted to be belt driven from a motor 64 through gearing 66 along rollers 68 effective to pick up the plates delivered to the respective rollers 56 or 58 and deposit the plates in the appropriate die i4 with which the rollers and mechanism are associated between die faces I0 and 12.
- the course of the arms 62 is governed by movement along a reciprocating chain drive path and by an appropriate cam 'I4 driven from the motor 64 for effecting the lifting action of the plates from the rollers in the course of their travel to the dies; whereas a cam 'I6 together with a micro-switch 18, one of which is associated with a set of rollers 56 and 58, operates to control the operation of the motor 64 relative to the timed function of mechanism 26.
- Cam similar to cam 'I6 oppositely disposed from cam 'I6 driven by the same gearing as cam 'i6 is operable in timed relation to mechanism 26 for the proper timed operation of die I4 after a spring plate has been inserted the-rein.
- This operation comprises the closing of the die upon the plate for the cambering thereof as well as the subsequent movement of the die to quenching position for the quenching ol' the plate in oil tank I6.
- the rollers 54 are driven from a motor 82 through an arrangement of gears and clutches 84, including a clutch 86 controlled by a cam 80 and a second clutch 90 controlled 4noy the cam 92 rotatable with the cam 88.
- the clutches 86 and 9i! are adapted to transmit power respectively by way or sprockets 94 and 96 to a double sprocket S8 having gearing connection with one of the rollers 54, said rollers 54 each being geared together by suitable drive and idler gears
- the cams 88 and 92 are driven from a source of power to be hereinafter described and are arranged so as to effect alternate engagement and disengagement of the clutches for the purpose of driving sprocket 98 in one direction or another depending on which clutch is engaged.
- the rotation of sprocket 98 is imparted to the gear chain
- rollersi, and 58 illustrates 'the arrangement of rollersi, and 58 ⁇ respectively with'reg'ards to their-input drive means; and, as such; itfis totbeinotedfthat no driving relation exists:fbetweenltherespec-tive sets of rollers'.
- rollers te' are driveniromy ⁇ motor 82?- by an appropriate chain drive'H 2'coupled to sprocket lliwhich in-turnfdrivesasha-ft upon'which is secured a gear
- 22 ⁇ which is drivingly connected to a# sprocket gearf
- rollers eiland 58 ⁇ - ata1l-'tiines rotatevin unison with their respectivemotors-
- rollers et'v are all-arranged with the exception ci the endtwo rollers on'each'side thereof with shoulders
- Thefroller's 53 are arranged with their shouldersk
- the adjacent pair ofr'ollers Strand 54 and58land ⁇ 54 are arranged opposite to one Janother and opposite to the rollers ci their'respectivesetsv for the purpose of guiding the plates as theyare ⁇ moved down the rollers and thus maintain them in alignment on the rollers.
- the pusher mechanis'mf is operated lby way of lever Eil derivingmotion from'a'b'elt'crank and link arrangement lbelt driven from 'the'shaft
- the cams d8 and 92 are: driven from agear le? having driving connection ⁇ with a gear
- rollers 56 or 58e' are thenmoved f onto rollers 56 or 58e' as the case may be until itlmove's-toith'e end-ofl the set ofrollers and abuts ⁇ ori-er ofi the micro-switches 'it said tripping off the switch elrecting-operation of motorv S'Z-or H21?
- the next plate removed from the furnace and delivered to rollers 54 is moved to the set of rollers opposite from the previous operation and a like process is carried out relative to switch control and mechanism operation for the cambering and quenching thereof.
- This alternate conveyance and delivery of plates, one plate to one die and the next to the other die and so on provides for the efficient, and economical handling, heating, cambering, and quenching of two different sets of plates, each requiring an individual die for the cambering thereof, while only using one furnace for the heating of the plates.
- Combination mechanism for the automatic handling of leaf spring plates in the heating, cambering, and quenching thereof comprising a heating furnace, walking beam mechanism for transporting springs through the furnace in orderly and parallel array, articulating arm mechanism Afor retrieving the plates from the furnace and for delivery to a point removed from the furnace, a pair of spaced cambering dies arranged forwardly from the exit of the furnace, a pair of quenching tanks, one associated with each die into which the respective cambered plates are moved after a cambering operation, roller mechanism for del.
- a machine for the automatic handling of leaf spring plates in the heating, cambering, and quenching thereof comprising a heating furnace, a plurality of cambering dies associated with and spaced apart from each other and from the exit of the furnace, a plurality of quenching tanks, one associated with each of the cambering dies, walking beam mechanism associated with the furnace for conveying the leaf spring plates therethrough that have been manually loaded thereon in prearranged order, articulating arm mechanism for retrieving the plates from the furnace on" of the conveyor means one at a time after they have been heated and depositing same adjacent the furnace exit, pusher means for moving the plates after retrieval substantially outside the furnace to a further deposited location, roller means at the further location for delivering the plates alternately to one side or another to a point adjacent one die or another, and means for picking up the plates form the delivery means and inserting the plates in the die with which they are associated, said cambering dies conveying and retrieving mechanisms and means each being power driven in coordinated timed relation to one another.
- cambering, and quenching of leaf spring plates in an automatic manner comprising a heating furnace having a horizontal passage therethrough between the entrance and exit thereof, a pair of cambering dies arranged in spaced relation opposite the exit of the furnace, a pair of oil quench tanks one associated with each of the dies into which the plates are to be moved after a cambering operation, horizontally arranged walking beams means for conveying the plates through the horizontal passage in the furnace in singular parallel array, mechanism for delivering the plates singularly in alternate relation to one die or another from the exit of the furnace comprising arm members for retrieving the plates from the furnace one by one after being heated, arm means for pushing the plates down a pair of parallel slide bars after retrieval, roller means for receiving the plates after sliding down the bars and delivering same in a horizontal direction to a point adjacent one die or another as the phase of motion dictates, and pusher means for picking up the plates from the delivery means and inserting same in the dies, said dies, conveying means, and delivery mechanism all being operated in coordinated relation to one another in
- Mechanism for the automatic handling of leaf spring plates in the conveying thereof from a heating furnace to two dies associated therewith spaced apart from one another comprising articulated arm means for retrieving the spring plates from the furnace after the heating thereof, reciprocated arm means for pushing the plates to a position beyond the retrieved point, roller means for moving the plates alternately in one direction or another adjacent one die or another after their retrieval from the furnace, and arm means operating perpendicular to the roller means associated with the delivery means for inserting the plates into the die with which they are associated, said dies and means all being power driven in coordinated relation to one another.
- cambering, and quenching of two different types of plates, each requiring a separate cambering die comprising a heating furnace, two cambering dies, suitably spaced from the exit of the furnace, a pair of quench oil tanks one associated adjacent and with each die, automatic walking beam conveyor means for transporting the spring plates through the furnace in orderly parallel array, reciprocable mechanism for retrieving the plates from the furnace as they approach the exit thereof, mechanism for delivering the plates after being retrieved from the furnace to the dies for the cambering thereof comprising a plurality of roller means arranged in a horizontal aligned array extending along between and in front of the furnace exit and dies means for alternately delivering the plates adjacent the dies, reciprocable arm means for removing the plates from the rollers and inserting the plates in the dies, means for actuating the dies and for moving the dies into their associated quenching tanks during the cambering operation, power means for actuating the conveyor means, mechanisms, and dies, and control cams and switches associated with the power means, conveyor means
- Mechanism for the automatic handling of leaf spring plates in the conveying thereof from a heating furnace after the heating thereof to two dies associated therewith and spaced therefrom and apart from one another in parallel array to the exit from the furnace comprising a pair of parallel slide bars extending from the furnace exit to a point removed therefrom, articulating arm means for transferring the plates from the furnace exit to a point on the slide adjacent the furnace exit, reciprocable pusher means for moving the plates down the slide bars, a plurality of rollers aligned side by side extending between the dies and across and perpendicular to the slide bars, a number of said rollers rotatable in both directions for alternately moving the plates after delivery thereto to a point adjacent one or the other of the dies, and reciprocable arm means associated with each of the dies for transferring the plates delivered adjacent the dies from the rollers to the dies.
- Mechanism for the automatic handling of leaf spring plates in the conveying thereof from a heating furnace after the heating thereof to two dies associated therewith and spaced therefrom and apart from one another in parallel array to the exit from the furnace comprising a pair of parallel slide :bars extending from the furnace exit to a point removed therefrom, articulating arm means for transferring the plates from the furnace exit, reciprocable pusher means for moving the plates down the slide bars, a plurality of rollers aligned side by side extending between the dies and across and perpendicular to the slide bars, a number of said rollers rotatable in both directions for alternately moving the plates after delivery thereto to a point adjacent one or the other of the dies, reciprocable arm means associated with each of the dies for transferring the plates delivered adjacent the dies from the rollers to the dies, and means for operating in timed sequence the articulating arms, pusher, reciprocable arm means, and the rollers.
- Mechanism for the transferring of heated metallic articles from a heating furnace to a pair of spaced in line dies lying parallel to and spaced from the exit of the furnace comprising a plurality of rollers extending in alignment along and in front of the dies and furnace exit lwith their axes lying parallel to one another,
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Description
. NVENTOR. Geo/ge R .129624Y @Mw/4&7 l TTO/VEY' 3 Sheets-Sheet 1 Emme i4, 1949.; G. R. REED SPRING CAMBERING MACHINE Filed April 1l, 1947 une M, i949. G, R, REED SPRING CAMBERING MACHINE 3 Sheets-Sheet 2 Filed April l1. 1947 INVENTOR. George R.Reed M Hume M, R949. G. R. REED 29473345 SPRING CAMBERING MACHINE Filed April 11, 1947 5 Sheets-Sheet 3 IN V EN TOR.
george R.Ree
Patented June 14, 1949 STATES @F'FliCE srRiNG CAMBERING ivriwiirirnv George R. Reed,Gro'sse Pointe?Plark;l\[lch1.,as;*V
signor to Eaton Manufacturing: Con'pfsm'y;
Cleveland; Ollio,l a corporation ofv Ohio'2 Application April 11, 1947; srialNbf-riafsiis'i (ci: 26e- 4) S Claims.
'Iliis invention `relaises'to*'spririg-s vand xmore particularly; mechanism for y producing vcainloered leaf springs:l
Broadly" thefin'ventionicomprehends the provision of powerdriven' mechanisms f or automaticallyl handling leafll springf plates` through the stagesof'heating,-` camberig; andquenching in properly timed sequence for the substantially simultaneous l* production of two different spring plates of high" quality' `vehicle leafv springs from the fiat pla-te tocarnbered state;
Itv hasbeenlthe'fgfeneral practice inv the past in theheating.;v carr'rloering, I and* quenching of leaf spring plates' to employ manu-al handling of the plates -in -the-"transporting ofv same through the furnace, removal "-frorrr-the furnace, and delivery andinsertion to tlieproper die forthe cambering thereof.- The-presentiriventionthrough 4the provision of autom'atically4 operable mechanism effectively arrangedrelativeto aA single furnace and ltwo `dies having appropriate timing controls therefor providesfortheproduction of two differentcamberedleafrspring plates from their fiat stage when"mar1`ually inserted in the furnace to finished,v camb'ered heat-treatedstage withoutanyfmanualfassistance; wherein the two different plates`= eachy require a different die for the propercamberingithereofi Anfobject-'of-thelinvention is the provision of a machine" incorporating automatically operable mechanismforcarrying outthe heating, cambering', andouen'chi'ngo f'leafspring plates in an efci'entand economical manner.
Another object of the inventi`on-isthe provision of mechanism'. forn automaticallytransporting heatedlleafsprn'gs-froml af-heating furnace to a pair ofdiesfin 'alternating relation for the cambering andiquenching-ofYtheplates,l each of said dies receivingfdirent'platesf than thev other die.
A` further' objectl oftheinvention is' the provisionVIV ofm'echa'nism i associated with' f a heating furnace-and Ltwov dies for automatically conveying or transportingtvvofdierent'types of leaf spring plates-- through" the heating furnace and fordliverixig-"the plates-'totheir respective dies in alternate'rlationl'and'lordrly arrangement for the canibeing!" and "quench-ing thereof.
A still furthery obect* of fthe' invention' is the provision of 'i combination" mechanismv for' automaticallyV carrying out" the heating, cambering, and" quenchingof twodifferent' types* of leaf spring plates* thi'ough"the utilization of a novel arrangement-cfa*singleheating furnace and two dies, one "'forf each' type of plate and `mechanism associated With""th`ffuri1ace a'iiddies "for proper- 2 ly transporting v therplatesithrough the'i furnace and thence alternately to the dies forthe camberin'g thereof whereinfth'e platesfaref loaded in preari'a'ngdordrfinitheifurnac'efor coordinated deliveryby.' thiefv conveyingffmechanism to the prper diei Other` obj ects2-andfadvantagesof the invention will: appearfi'initliefollowirig description taken in' Lconnectionwith; the.drawings;frming a part of `the specification; l and-21 imwhiclr:
Fig.'1=isa fragmentary; p'artially'nV sectionalized, side' felevatiorialfview; ofi a #furnace and' automatic leaffspring;'platetransporting' anddelivery mechanisrnV associateci.-` therewith;v
Figi 2 is'iaift'op: plan''-viei'yfofi Fig: 1
Figi. 3l is. aside piani-view' of` mechanism for transf erringf the? s'elettedfn-leaf`4 spring? plates from the" rollersz. off the delivery` mechanism to. their res pectiveil die:
Fig.LV 4iisfiafragmentary; .side elevational view of.' a die' associated? Withethe'ffurnace and delivery mechanism;-
Fig. 5fisfa-fragmentaryendpian `'View of Fig. 3
Fig: 6 ai' partiallyr-broken r fragmentaryy end plan View of the roller mechanism of thefdelivery mechanism; i
Fig; '7v` isfafcrossesectional viewV of' the roller mechanismftakenthroughonesof the rollers;
Figur Sfis :a 'topplanvexvfoffthe'reversing mechanism 'for' th'e l centen' section Aof rollers;
Fig: `9g is' ar fragmentary side' plan'y vi'evvk of the cam' mec'l'rar'i'ism:V forr the;v lifting? .meansv of the transportingltmechanismeituatedin the furnace;
Fig. 101isfa fragrrieiiltariv/A sidef-plan 'viewof the ;cam mechanismfor' axialln` moving:v the'- transporting? rnecliari-isrrrE4 situated iin theffurnace;
Fig; -1f1' is "a-sidefpl'airivievffof th'eimicro-switch mechanism associatedwith the` rollers' for controll-ing;l the delivery means Fig.: 14fisa .top-planwviewiof thel spring-v plate pushenmeans *shewn'fin Fig: 1-.
The finstantfinvention- :was e-devised'f o1' the 'purposeof providing an automatic setiV up -for the heating; ,-camberings and quenching -offtWo different typescf 1eaf springplates; each-requiring a differentdie for the camberingthereof through thel utilization of a fsingle-fh'ea-tingv furnace and two4 diesffor the respective7^ different plates arranged appropriately relative to l the*V furnace and having., incerporated ftherevvith.-` mechanism for transporting ,thef platesthrough the furnace, mechanism" forfnlovrfg-thr plates from the furnace, mechanism for moving the plates to delivery means therefor, mechanism for alternately delivering the plates in accordance with prearranged loading in the furnace to their respective dies, and mechanism for inserting the plates in the dies, all of said operating mechanisms being automatically switch or cam controlled to provide for the coordinated timed operation thereof. The mechanism for alternating the delivery of the plates to their proper die forms the fundamental concept of this invention in that it provides the connecting link between the furnace and dies permitting the use of one furnace to supply two dies and, as such, consists of rollers which are reversely rotatable by appropriate gearing, clutching, and controls therefor actuated by timing cams effective to cause rotation of the rollers in one direction during one phase of operation for delivery of one type of spring plate to one die and rotatable in the other direction for the delivery of another type of spring plate to the other die.
Referring to the drawings for more specific details of the invention, I represents generally a combination mechanism for the automatic handling of leaf spring plates through the steps of heating, cambering, and quenching, comprising a heating furnace I2, a pair of cambering dies I4, associated with appropriate oil quenching tanks I6, a conveyor means I8 arranged in the furnace for transporting the spring plates through the furnace in orderly parallel alignment, mechanism for unloading theplates from the furnace, mechanism 22 for pushing the plates down a suitable slide provided to delivery mechanism 24, said mechanism 24 providing for alternately moving the spring plates in one direction or another for `delivery to one die or another, a pair of mechanisms 26, each for association respectively with one of the dies for inserting the plates in the die for the cambering thereof, said dies I4, conveyor means I8, and mechanisms 20, 22, 24, and 26 all being power driven and controlled relative to one another for the coordinated timed operation thereof.
The conveyor means I8 Which comprises horizontally arranged arcuately horizontally` movable bars 28, cooperable with horizontally arranged vertically movable bars 30 for transporting the spring plates in orderly parallel arrangement through the furnace is more specifically described in my copending United States application, Serial No. 715,747, led December 12, 1946.
The unloading mechanism 20 includes a plurality of arms 3| movable through a limited arc effective to pick up the plate at the exit of the furnace from bars 28 and 30 and deposit same at a point removed from the bars on slide bars 32.
The mechanism 22 for pushing the plates down the slide bars 32 after removal from the furnace after the heating thereof and for delivering said plates to mechanism 24 comprises a plurality of pusher arms 34 affixed at spaced points upon a longitudinally extended carriage 36 arranged for sliding movement upon rollers 38 attached thereto along rails or tracks 40 supported between the front 42 of the furnace and a vertical support 44 mounted intermediate the quench tanks. The arms 34 are adapted through the provision of suitable lever and linkage 46 to be pivoted in such a way that when the carriage is being pulled away from the furnace, the arms will be in dotted line position effective through the fingers 48 on the ends thereof to push the plates along slides 32 arranged adjacent the exit from the furnace and mechanism 24. The leverage and linkage 46 is actuated through power driver lever means 50 pivoted at a point on a horizontal support 52 affixed to support 44 effective during the movement of the carriage toward or away from the furnace as the case may be to move the arms 31E to full line position during the course of movement toward the furnace and to dotted line position as it moves away from the furnace. With the arms in dotted line position, the fingers 40 thereof engage the plate deposited on the slides b y arms 3| and push the plate down the slides as the carriage is retracted from adjacent the furnace.
The alternate delivery mechanism 24 comprises a plurality of driven rollers 54, 56, and 53 arranged in line with the axes of rotation parallel to one another, said rollers 54 comprising a group located centrally of the rollers 56 and 55 and being driven by reversing mechanism 69 for rotation in either direction depending upon the phase of motion to which the machine is set. The rollers 56 are associated with one of the dies I4 and one of the mechanisms 26 for positive continued rotation in one direction and the rollers 525 are associated with the other die I4 and mechanism 26 for continued rotation reversely to rollers 56.
The mechanisms 26 each include arms 62 adapted to be belt driven from a motor 64 through gearing 66 along rollers 68 effective to pick up the plates delivered to the respective rollers 56 or 58 and deposit the plates in the appropriate die i4 with which the rollers and mechanism are associated between die faces I0 and 12. The course of the arms 62 is governed by movement along a reciprocating chain drive path and by an appropriate cam 'I4 driven from the motor 64 for effecting the lifting action of the plates from the rollers in the course of their travel to the dies; whereas a cam 'I6 together with a micro-switch 18, one of which is associated with a set of rollers 56 and 58, operates to control the operation of the motor 64 relative to the timed function of mechanism 26. Cam similar to cam 'I6 oppositely disposed from cam 'I6 driven by the same gearing as cam 'i6 is operable in timed relation to mechanism 26 for the proper timed operation of die I4 after a spring plate has been inserted the-rein. This operation comprises the closing of the die upon the plate for the cambering thereof as well as the subsequent movement of the die to quenching position for the quenching ol' the plate in oil tank I6.
The rollers 54 are driven from a motor 82 through an arrangement of gears and clutches 84, including a clutch 86 controlled by a cam 80 and a second clutch 90 controlled 4noy the cam 92 rotatable with the cam 88. The clutches 86 and 9i! are adapted to transmit power respectively by way or sprockets 94 and 96 to a double sprocket S8 having gearing connection with one of the rollers 54, said rollers 54 each being geared together by suitable drive and idler gears |00 and I02 respectively. The cams 88 and 92 are driven from a source of power to be hereinafter described and are arranged so as to effect alternate engagement and disengagement of the clutches for the purpose of driving sprocket 98 in one direction or another depending on which clutch is engaged. The rotation of sprocket 98 is imparted to the gear chain |00 and |62 for the rotation of rollers 54 by way of'rotatable gear |04 secured to the shaft of sprocket 98. It is to be noted in view of the arrangement of gears |06, |08, and IIO, that upon alternate engagement of the clutches cavalerie and Lilli the -sprocket'sed an'clf-SEarelalternately; positively driven'revers'ely-to1'one anotherrwhere in the case ofclutcli ben'sln'engagementland clutch et being in disengagement; thefsprocketl will rotate idlywith .the Y rotation Fof' sprocket 94 because oi its chain drive relation Withspro'cket et and vice versal witlilregardsato'-tliefengagement ci' clutch dei -andldisengagement' of cltchBS Fig. 8 illustrates 'the arrangement of rollersi, and 58 `respectively with'reg'ards to their-input drive means; and, as such; itfis totbeinotedfthat no driving relation exists:fbetweenltherespec-tive sets of rollers'.
The rollers te' are driveniromy` motor 82?- by an appropriate chain drive'H 2'coupled to sprocket lliwhich in-turnfdrivesasha-ft upon'which is secured a gear ||'-assoeiatedfor'driving relau tion with drive andidlergearsllf and Hill?V for driving the rollersin oney direction'aslcontrolld by the direct operation ofy the motora' Iikewise the rollers fidare driven1from-amotor |22=`which is drivingly connected to a# sprocket gearf |24 similar to sprocket ||4-,` saidisprocket |24 in'turn having a rotatable shaft |26afXed thereto supporting a rotatable gear|28 having association with ldrive and iidlergears'- |3'0 and |32`ffor ydriving the rollersV Edin accordancewithfthe-rotation of motor |22.
The rollers eiland 58`- ata1l-'tiines rotatevin unison with their respectivemotors- |2'2- and82, whereas the rollers Seare controlled foi-'rotation in one direction or another depending'upon the desired control thereof:`
The rollers et'v are all-arranged with the exception ci the endtwo rollers on'each'side thereof with shoulders |34" away from the'rollers for ie purpose of restraining thespringplates' from being shoved off the4 rollers'when delivered there"- to after sliding down slider bars^32` Thefroller's 53 are arranged with their shouldersk |34 with the exception of two of each set'adjacent rollers iiil disposed fromy the dies" and quench tanks so that it is possible-ior the `mechanisms 2t to pick. the plates Aoff thefrollers"withoutthe necessity of lifting them over theshoulderst The adjacent pair ofr'ollers Strand 54 and58land`54 are arranged opposite to one Janother and opposite to the rollers ci their'respectivesetsv for the purpose of guiding the plates as theyare` moved down the rollers and thus maintain them in alignment on the rollers.
The conveyor |8;unloader mechanism '20,' pushing mechanism 22, and cams 88 and 925 arci-all driven from a source'of power; not shown-through power transmitting shaft |36:
The horizontal bars-2tL and 30`are*control1ed respectively for operation"` through appropriate levers and linkagev l38 being engaged'by'cams ifi@ and |552" rotatable with shaft |36 forY the timed cooperative relation thereof.
The unloading arms 3| of mechanism 2||`fare actuated by suitable links andlevers |44 Vincluding crank lever It derivingy motion" from an eccentric |58 affixed to the-shaft |36 for'rotation therewith.
The pusher mechanis'mf is operated lby way of lever Eil derivingmotion from'a'b'elt'crank and link arrangement lbelt driven from 'the'shaft The cams d8 and 92 are: driven from agear le? having driving connection`with a gear |54 secured for rotation with the shaft |36:
Through the proper' arrangement or the :mech- Ydowri'- the slide onto rollers 5l? 6 is; attainedf such that the'v mechanisms2 operate inra: smooth-relation toione anotherin :the auto-I maticVV handling of spring plates" from thefftime ofi deposita'4 onf thel conveyor untilltnecompletion of," th'el quenching operation thereof.
The dies? Hlalthough of asimila/r nature'with respecttoltheir disposition' on" oppositesidesrof the'furna'ce differV inv that'V` it is" the general` pur= pose to providev dies thathandle different? site spring plates r for the camberin'g thereofv such; example;v asl.` aimainllea springf plate' and Aalumni ber;l f our 'spring f plate of a conventional automa; tive vehicle leafspring assembly.
Arte-rl the" dies-aref arrangedwith` respeetto tlierlfurn'aceflocationl and platesfthat theyt'arfte handle,A iti is` thenl necessary f to' provide-ii for the operationoftherollers:r 5d a direction f of rotation.` that'. willr conveyv the springl platei therein to the proper? placef for insertion'`1 ii'itolc one'l or theother of" diese I Il? lnaddition to=thisr it is necessary 'that the 'spring' plates' toibe carribered b'e'floade'd in proper -arid alternating relatienlo'ri the:` conveyor so that! thel plate wil-lmatchi the die -tc 1 which it' is to beV delivered.` This fcanfbe accomplished by providing aidetectorilightatthe loading station which will infor-m1 the,I load'e` what plate is to be then placediin-the conveyor.
In a normal operation of the combination mechanism l0 wherein the heatingy elefmentsfoi thev furnace are placed in operation andth'e power transmitting shaft isrdriven' from its-power sourcev thereby effecting operation ofl thel conveyor I8" and` mechanisms 20,5 22; 24,5 and:` 2'6.
With r the conveyor in operation it is necessary for anlindividualito load-'flat spring-plates` upon the conveyor bars v2&1 and'3' a1ternating twolsets of plates',` such as, ai main plate, number foi'ni plate, mainl plate, and-so on.- Inwloadingthe plates upon 7the 'conveyor it is necessary? that fthe plates be deposited synchronously to 4 theoperationvv of rollers 5tlso that the lprop'er 'plates-f will bef delivered to their respectivey dies and this canibeaccomplished either through the* knowledge-ofthe loader` or by means such as -aashei light controlled vvby the f operation ofi` the reversing mechanism for the'rollers 51|. After the l`proper loading of the platesfandtheir subsequent1pasL sagethroug-hthefurnace to fbe heated; the. arms 32|1v oill unloaded mechanism 20 liti-orie-plateiat va1. time M frombars .2B- anda (il): and deposits 1 saine on slides'v t2 adjacent thef'urriacefwhereupon the lingers 48- oniarms 34' of carriage: 36`f'wh'ich is `coordinatedl for operation?- with l the conveyor andffmeohanismf'rle engage the plate and push'y it The'L rollers-r 5'4 at this timeL will-"be coordinated! iorf operatienis'o that fthey will llce rotating `in the `proper `direction to transfer the heated`I plate to' its V- proper-v die lll-'- TheU plate. is thenmoved f onto rollers 56 or 58e' as the case may be until itlmove's-toith'e end-ofl the set ofrollers and abuts` ori-er ofi the micro-switches 'it said tripping off the switch elrecting-operation of motorv S'Z-or H21? resulting irr actuating arms 182 effective-to pickiup-'theplate frornlth'el'rollers Aand depositit into fdi'e-f 4s Duringlthecourse of lthis operation the' rotationpf carni-'Flr' driven from motor' 6'4" provideslforfthe prope-rlftirrg action of the arms to piekuplthe plate"landfsubseduently i deposit' -it 'on thedi'e' and return-ato theirl normalfposition, whereasfcam 3D1@ which is set relative tot the:` operation-'- or mechanism 25 trips ai switch |56,v said `switch in turn controlling the :operation of thelclesig uitheideupon the'depbstd plait/S a's'i-Wellas spring plate in oil tank i6. The cam I6 engages switch |53 effective to stop rotation of motor 64 after a completed operation of mechanism 26.
The next plate removed from the furnace and delivered to rollers 54 is moved to the set of rollers opposite from the previous operation and a like process is carried out relative to switch control and mechanism operation for the cambering and quenching thereof. This alternate conveyance and delivery of plates, one plate to one die and the next to the other die and so on provides for the efficient, and economical handling, heating, cambering, and quenching of two different sets of plates, each requiring an individual die for the cambering thereof, while only using one furnace for the heating of the plates.
The cambering and quenching of a plate of each set of leaf spring plates completes an entire phase of operation of the mechanism.
While this invention has been described in connection with certain specific embodiments, the principle involved is susceptible of numerous other applications that will readily occur to persons skilled in the art. The invention, therefore, is limited only as indicated by the scope of the apd pended claims.
What I claim is:
1. Combination mechanism for the automatic handling of leaf spring plates in the heating, cambering, and quenching thereof comprising a heating furnace, walking beam mechanism for transporting springs through the furnace in orderly and parallel array, articulating arm mechanism Afor retrieving the plates from the furnace and for delivery to a point removed from the furnace, a pair of spaced cambering dies arranged forwardly from the exit of the furnace, a pair of quenching tanks, one associated with each die into which the respective cambered plates are moved after a cambering operation, roller mechanism for del.
livering the retrieved plates alternately in opposite horizontal directions to positions adjacent to the dies, and lifter and conveying mechanism associated with each die for transferring the plates from positions adjacent the die to the die, said mechanisms and dies all being power driven in coordinated timed relation to one another.
2. A machine for the automatic handling of leaf spring plates in the heating, cambering, and quenching thereof comprising a heating furnace, a plurality of cambering dies associated with and spaced apart from each other and from the exit of the furnace, a plurality of quenching tanks, one associated with each of the cambering dies, walking beam mechanism associated with the furnace for conveying the leaf spring plates therethrough that have been manually loaded thereon in prearranged order, articulating arm mechanism for retrieving the plates from the furnace on" of the conveyor means one at a time after they have been heated and depositing same adjacent the furnace exit, pusher means for moving the plates after retrieval substantially outside the furnace to a further deposited location, roller means at the further location for delivering the plates alternately to one side or another to a point adjacent one die or another, and means for picking up the plates form the delivery means and inserting the plates in the die with which they are associated, said cambering dies conveying and retrieving mechanisms and means each being power driven in coordinated timed relation to one another.
3. Mechanism for carrying out the heating,
cambering, and quenching of leaf spring plates in an automatic manner comprising a heating furnace having a horizontal passage therethrough between the entrance and exit thereof, a pair of cambering dies arranged in spaced relation opposite the exit of the furnace, a pair of oil quench tanks one associated with each of the dies into which the plates are to be moved after a cambering operation, horizontally arranged walking beams means for conveying the plates through the horizontal passage in the furnace in singular parallel array, mechanism for delivering the plates singularly in alternate relation to one die or another from the exit of the furnace comprising arm members for retrieving the plates from the furnace one by one after being heated, arm means for pushing the plates down a pair of parallel slide bars after retrieval, roller means for receiving the plates after sliding down the bars and delivering same in a horizontal direction to a point adjacent one die or another as the phase of motion dictates, and pusher means for picking up the plates from the delivery means and inserting same in the dies, said dies, conveying means, and delivery mechanism all being operated in coordinated relation to one another in accordance with prearranged loading of the plates in the furnace on the conveying means.
4. Mechanism for the automatic handling of leaf spring plates in the conveying thereof from a heating furnace to two dies associated therewith spaced apart from one another comprising articulated arm means for retrieving the spring plates from the furnace after the heating thereof, reciprocated arm means for pushing the plates to a position beyond the retrieved point, roller means for moving the plates alternately in one direction or another adjacent one die or another after their retrieval from the furnace, and arm means operating perpendicular to the roller means associated with the delivery means for inserting the plates into the die with which they are associated, said dies and means all being power driven in coordinated relation to one another.
5. A combination machine for the automatic handling of leaf spring plates in the heating,
cambering, and quenching of two different types of plates, each requiring a separate cambering die, comprising a heating furnace, two cambering dies, suitably spaced from the exit of the furnace, a pair of quench oil tanks one associated adjacent and with each die, automatic walking beam conveyor means for transporting the spring plates through the furnace in orderly parallel array, reciprocable mechanism for retrieving the plates from the furnace as they approach the exit thereof, mechanism for delivering the plates after being retrieved from the furnace to the dies for the cambering thereof comprising a plurality of roller means arranged in a horizontal aligned array extending along between and in front of the furnace exit and dies means for alternately delivering the plates adjacent the dies, reciprocable arm means for removing the plates from the rollers and inserting the plates in the dies, means for actuating the dies and for moving the dies into their associated quenching tanks during the cambering operation, power means for actuating the conveyor means, mechanisms, and dies, and control cams and switches associated with the power means, conveyor means, dies, and mechanisms for the coordinated operation thereof.
6. Mechanism for the automatic handling of leaf spring plates in the conveying thereof from a heating furnace after the heating thereof to two dies associated therewith and spaced therefrom and apart from one another in parallel array to the exit from the furnace comprising a pair of parallel slide bars extending from the furnace exit to a point removed therefrom, articulating arm means for transferring the plates from the furnace exit to a point on the slide adjacent the furnace exit, reciprocable pusher means for moving the plates down the slide bars, a plurality of rollers aligned side by side extending between the dies and across and perpendicular to the slide bars, a number of said rollers rotatable in both directions for alternately moving the plates after delivery thereto to a point adjacent one or the other of the dies, and reciprocable arm means associated with each of the dies for transferring the plates delivered adjacent the dies from the rollers to the dies.
7, Mechanism for the automatic handling of leaf spring plates in the conveying thereof from a heating furnace after the heating thereof to two dies associated therewith and spaced therefrom and apart from one another in parallel array to the exit from the furnace comprising a pair of parallel slide :bars extending from the furnace exit to a point removed therefrom, articulating arm means for transferring the plates from the furnace exit, reciprocable pusher means for moving the plates down the slide bars, a plurality of rollers aligned side by side extending between the dies and across and perpendicular to the slide bars, a number of said rollers rotatable in both directions for alternately moving the plates after delivery thereto to a point adjacent one or the other of the dies, reciprocable arm means associated with each of the dies for transferring the plates delivered adjacent the dies from the rollers to the dies, and means for operating in timed sequence the articulating arms, pusher, reciprocable arm means, and the rollers.
8. Mechanism for the transferring of heated metallic articles from a heating furnace to a pair of spaced in line dies lying parallel to and spaced from the exit of the furnace comprising a plurality of rollers extending in alignment along and in front of the dies and furnace exit lwith their axes lying parallel to one another,
-slide bars extending from the furnace exit to a point adjacent a central group of the rollers, said central group of rollers being rotatable in both directions and the groups of rollers on either side of the central group being rotatable solely in one direction opposite to each: other, a pair of articulating arms for picking the articles from the furnace and depositing. same at the end ofthe slide bars adjacent the furnace exit, a pair of reciprocable arms for pushing the articles down the slide .bars to the central group of rollers, and a pair of articulating arms associated with each die for transferring the articles from the group of rollers on one end associated therewith to the dies. GEORGE R. REED.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS- Number Name Date 1,713,137 Leck May 4, 1929 1,867,331 Shuhan et al. July 12, 1932 1,990,707 Moore Feb. 12, 1935 l2,022,532 Beans Nov. 26, 1935 2,217,333 Dahlman Oct. 8, 1940 2,243,174 Stevenson May 27, 1941 2,261,624 Inskeep Nov. 4, 1941
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US740945A US2473445A (en) | 1947-04-11 | 1947-04-11 | Spring cambering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US740945A US2473445A (en) | 1947-04-11 | 1947-04-11 | Spring cambering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2473445A true US2473445A (en) | 1949-06-14 |
Family
ID=24978710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US740945A Expired - Lifetime US2473445A (en) | 1947-04-11 | 1947-04-11 | Spring cambering machine |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2473445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2747855A (en) * | 1951-09-11 | 1956-05-29 | Harold N Ipsen | Heat treating apparatus |
| US5004213A (en) * | 1989-01-21 | 1991-04-02 | Luhn & Pulvermacher Gmbh & Co. | Leaf-spring hardener |
| US10989476B2 (en) * | 2018-06-14 | 2021-04-27 | Alite Gmbh | Clinker cooler and method for operating a clinker cooler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1713137A (en) * | 1926-06-14 | 1929-05-14 | Scullin Steel Co | Method of heat treating metallic articles |
| US1867331A (en) * | 1928-04-04 | 1932-07-12 | Wade & Butcher Corp | Forging machine |
| US1990707A (en) * | 1932-06-14 | 1935-02-12 | Pittsburgh Res Corp | Heat treating method and apparatus |
| US2022532A (en) * | 1934-03-20 | 1935-11-26 | First Nat Bank In Massillon | Spring forming and quenching machine |
| US2217333A (en) * | 1937-11-15 | 1940-10-08 | Eben D Dahlman | Machine for making link rods |
| US2243174A (en) * | 1938-05-10 | 1941-05-27 | Emsco Derrick & Equip Co | Method and apparatus for heating and quenching sucker rods |
| US2261624A (en) * | 1940-06-08 | 1941-11-04 | Linde Air Prod Co | Heat treating apparatus |
-
1947
- 1947-04-11 US US740945A patent/US2473445A/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1713137A (en) * | 1926-06-14 | 1929-05-14 | Scullin Steel Co | Method of heat treating metallic articles |
| US1867331A (en) * | 1928-04-04 | 1932-07-12 | Wade & Butcher Corp | Forging machine |
| US1990707A (en) * | 1932-06-14 | 1935-02-12 | Pittsburgh Res Corp | Heat treating method and apparatus |
| US2022532A (en) * | 1934-03-20 | 1935-11-26 | First Nat Bank In Massillon | Spring forming and quenching machine |
| US2217333A (en) * | 1937-11-15 | 1940-10-08 | Eben D Dahlman | Machine for making link rods |
| US2243174A (en) * | 1938-05-10 | 1941-05-27 | Emsco Derrick & Equip Co | Method and apparatus for heating and quenching sucker rods |
| US2261624A (en) * | 1940-06-08 | 1941-11-04 | Linde Air Prod Co | Heat treating apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2747855A (en) * | 1951-09-11 | 1956-05-29 | Harold N Ipsen | Heat treating apparatus |
| US5004213A (en) * | 1989-01-21 | 1991-04-02 | Luhn & Pulvermacher Gmbh & Co. | Leaf-spring hardener |
| US10989476B2 (en) * | 2018-06-14 | 2021-04-27 | Alite Gmbh | Clinker cooler and method for operating a clinker cooler |
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