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Патент USA US3088207

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May 7, 1963
E. J. SVENSON
3,088,198
APPARATUS PoR ASSEMBLING AND TESTING PUMP PARTS
Filed Sept. 11, 1958
6 Sheets-Sheet 1
May 7, 1963
E. J. svENsoN
3,088,198
APPARATUS PoR ASSET/[BLING AND TESTING PUMP PARTS
Filed sept. 11, 1958
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May 7, 1963
.5. J. svENsoN
3,088,198
APPARATUS FOR ASSEMBLING AND TESTING PUMP PARTS
Filed Sept. ll, 1958
6 Sheets-Sheet 3
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INVENTOR.
jfvzasí Meadow
May 7, 1953
E. J. svENsoN
3,088,198
APPARATUS FOR ASSEMBLING AND TESTING PUMP PARTS
Filed Sept. ll, 1958
15,
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6 Sheets-Sheet 4
May 7, 1963
E. J. svENsoN
3,088,198
APPARATUS FoP ASSEMBLING AND TESTING PUMP PARTS
Filed Sept. ll, 1958
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6 Sheets-Sheet 5
May 7, 1963
E. J. svENsoN
3,088,198
APPARATUS FOR ASSEMBLING AND TESTING PUMP PARTS
Filed Sept. l1, 1958
6 Sheets-Sheet 6
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¥atented May 7, 1963
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pump, such as the housing, impeller, seal, shaft and bear
3,088,198
APPARATUS FÜR ASSEMBLING AND TESINE»
PUMP PARTS
Ernest J. Svenson, Rockford, lll., assigner to (Edin Cor
poration, Rockford, Ill., a corporation of Illinois
Filed Sept. 11, 1958, Ser. No. 769,355
7 Claims. (QL 29_2íi8)
This invention relates to improvements in methods
and apparatus for assembling and testing parts, and more
particularly to an apparatus for assembling the con
stituent parts of water pumps, as, for example, water
pumps of the type used in automobiles, trucks, and ve
ing assembly, and pulley hub;
FIG. 5 is an enlarged sectional view of the seal and
retaining washer as shown in FIG. 4, more clearly to
illustrate the physical nature of the seal per se;
FIG. 6 is a detailed horizontal sectional view taken
substantially along the line 6_6 of FIG. 4, to show how
the opposed peripheral lugs of the retaining washer co
operate with the hub portion of the impeller;
FIG. 7 is a semi-diagrammatic vertical sectional view
at Station No. 1, illustrating the manner in which im
pellers are fed into position for subsequent assembly with
the pump housing at a subsequent station;
FÍG. 8 is also a semi-diagrammatic vertical sectional
hicles of like nature.
Production line methods have, for a number of years, 15 View at Station No. 2, illustrating the manner in which
seal devices are delivered into proper position and tele
been used to reduce the cost to the ultimate consumer of
such ydevices as automobiles, refrigerators, radio, and
television equipment, and the like. The present invention
contemplates further reduction in cost to the ultimate
scopically associated within the hollow hub portion of
the pump impeller which had previously been delivered
to Station No. 1;
consumer of devices in which a water pump forms a part 20
FIG. 9 is a semi-diagrammatic view similar to FIGS.
7 and 8 at Station No. 3, illustrating mechanism for shift
of the general combination. It has heretofore been com
mon procedure in assembling devices such as water
pumps, to practice methods of assembly which are not
consistent with the principle of low cost to the consumer.
ing retaining washers into proper position and subse
quently, telescopically assembled with the hollow hub
It is, therefore, one of the primary objects of the present
ously delivered at Station No. 2;
invention to provide an apparatus which will insure a
FlG. 10 is a semi-diagrammatic view in vertical sec
tion at Station No. 4, illustrating the manner in which
a pump housing is associated with the irnpeller after the
aforesaid seal and retaining washer have been applied to
high degree of eliiciency in the assembly and testing of
water pumps, and the like.
Water pumps of the type contemplated by the present
invention consist of a number of parts, such as a pump 30
of the impeller so as to secure in position the seal previ
the impeller;
FÍG. 1l is a semi-diagrammatic vertical sectional view
at Station No. 5, yto illustrate the manner in which shaft
and bearing assemblies are brought into preliminary as
nipple. Heretofore, manual assembly of the parts just
sembled relation with the pump housing;
enumerated has not proven to be elîicient, and the pres
FIG. 12 is a view similar to FIG. 11 taken at Station
ent invention contemplates an apparatus whereby such 35
No. 6, Kdisclosing the association of the pulley hub with
parts may be assembled with a minimum amount of
the shaft and bearing assembly previously assembled
manual elfort and Within limited ñoor space. To this end,
With the housing at Station No. 5;
the invention contemplates the intermittent advancement
FIG. 13 is, likewise, a semi-diagrammatic vertical sec
of various parts, beginning with the pump housing, along
a predetermined path from one station to another, Where 40 tional View at Station No. 7, illustrating the assembly of
a pipe plug with the pump housing;
by to accomplish expeditiously and economically the
FIG. 14 is a view similar to FIG. 13 and is taken at
assembly and ultimate testing of the pump structure.
Station No. 8 to illustrate the assembly with the pump
It is a further object of the present invention to ac
complish the assembly and testing of pump structures by 45 housing of a water by-pass nipple at Station No. 8;
FIG. 15 illustrates the mechanism for transferring a
directing constituent parts into the above mentioned pre
previously assembled pump structure from Station No.
determined path, shifting such parts into their proper as
9 to Station No. l0 after the pump housing has been un
sembled relation during periods of intermittent dwell
housing, impeller, seals, retaining washer, shaft and bear
ing assembly, pulley hub, pipe plug, and water by-pass
and finally subjecting the assembled parts to operational
testing after removing the pump structure from said pre
determined path.
lt is a further object of the present invention to em
ploy as far as possible, standardized equipment at the
various stations of assembly md, thus, reduce to a mini
mum added costs which would otherwise result when
clamped from its supporting fixture;
FIG. 16 illustrates the manner in which the completely
assembled pump structure is subjected to testing at Sta
tion No. 10, from which station defective pumps are de
livered to a reject point and satisfactory pumps are de
livered to a conveyor;
FIG. 17 is a plan View of a completely assembled
pump as supported and clamped upon its iixture prior
The foregoing and other objects and advantages will
to delivery to the testing station;
be more apparent from the following detailed description
FIG. 18 is a plan vieW of the pump shifting mechanism
when considered in connection with the occompanying
illustrated in FIG. 15, said view being taken substantially
drawings wherein:
60 along the line 118-18 of FIG. 15;
FIG. 1 is a plan diagrammatic View of apparatus which
FIG. 19 is a detailed sectional view of the clamping
may be employed in the practice of methods contem
mechanism for supporting a completed assembled pump
plated by the present invention;
structure prior to its being shifted from Station No. 9
FIG. 2 is a fragmentary elevational View taken sub
to Station No. 10, said view being taken substantially
stantially along the line 2_2 of FIG. l;
65 along the line 19_19 of FIG. 15, with the pump struc
FlG. 3 is an enlarged vertical sectional view taken
ture shown in elevation; and
along the line 3_3 of FIG. 1, Showing the position oc
FIG. 20 is a detailed sectional View of the aforesaid
cupied by the pump housing after it has been delivered
clamping mechanism taken along the line 2li-2U of
FÍG. 15.
to and located upon a supporting ñxture;
FlG. 4 is a vertical sectional View taken along the 70
Referring now to the drawings more in detail, wherein
line 4_4 of FlG. l at Station No. 8, more clearly to il
like nurnerals have been employed to designate similar
lustrate the assembled relation of constituent parts of the
parts throughout the various views, it is deemed advis
specially designed equipment is employed.
3,088,198
3
able to facilitate understanding of the present invention
4to describe one form of water pump of the type capable
4
able, oppositely disposed lugs 76 carried by the pin.72
(see FIG. 7) cooperate in properly locating the impeller
of being assembled by practicing the method contemplated
26 as it is shifted from the position shown in FIG. 7 to
the position shown in FIG. “8. It will be noted that the
fixture plate 60 is resiliently mounted upon the table 46
that the pump is designated kgenerally by the numeral
by means of coil springs 7S. Having telescopically asso
22. This pump 22 includes a pump housing or casting
ciated the impeller 26 with the pin 72, the plate 60 is now
24 which encloses animpeller 26. The impeller 26 is
ready to be advanced from Station No. 1 to Station No. 2.
carried by a shaft 28 of a shaft and bearing assembly
designatedA generally bythe numeral 30, FIGS. l1 to 13,
Station No. 2
inclusive. Also carried within a hollow hub portion 32 10
At Station No. 2 (see FIGS. l and 8), a supply of seal-r
of theim'peller 26 is a sealing device 34, best shown in
ri-ng devices 34 is maintained Within Va suitable hopper 80.A
ÈIG, 5. This sealing device 34 is held in place Within
From the hopper 80, »these seal devices are supplied to a.
the hub extension portion 32 of the impeller by a retain
conventional feeder device 82. This feeder device in-y
ingmember orwasher 36 (see FIGS. 4 to 6, inclusive).
The Washer 36 is provided with oppositely disposed pe 15 cludes a suitable ichute S4 for directing seals34 to the
dotted line position shown in PIG. 8. From this position,
ripherallugs 38, which are lodged within the comple
a conventional ‘hydraulic actuator 86 is adapted to shift
mentary recesses provided in the hub portion 32. The
the seal to the solid line position, in coaxial alignment
outer extremity of the shaft 28 >carries a pulley hub 40;
and as shown inVFIGS. 13 to 17, inclusive, there is asso- . with the previously mentioned pin 72 on `one side and a
cia'ted with the pump housing 24 a pipe plug 42 and a by 20 |hydraulic’actu-ator S8 on the opposite side. Advancing
movement of the actuator 88 causes the seal 34 to be
pass nipple 44.
hereby.V It will be seen from a number of the figures
The present invention contemplates improved methods
telescopically associated with the pin 72 so as to occupy
the position illustrated in lFIG. 9‘. In this position, the
and apparatus whereby the pump parts referred to above
seal 34‘is held within the hollow hub portion 32 of the
may-.be assembled into a completeV pump structure, and
thiscomplete pump structure tested under operating con 25 impeller 26. The impeller and associated seal are now
in readiness to be moved from Station No. 2 to Station
ditions with a minimum amount ofeifort and skill on the
No. 3 in response to the functioning of the aforemen
part of an operator- and with the expenditure of a mini
tioned
hydraulic actuator 48.
mum amountV of time. Referring to PIG. l, it will be
seen that one form lof'apparatus for assembly and testing
Station No. 3 '
pump structures `of the type referred to above incorporates 30
A-t Station No. 3, Ia hopper 90 retains a supply of re
an «intermittently rotatable table 46. This table is prefer
taining washers 36. These washers are supplied to a conf
ablyY of annular shape as viewed in plan and is adapted
ventional feeder> mechanism ‘92, and are directed by a
to be shifted intermittently through the agency of a suit
chute 94 to the dotted line position illustrated in fFIG. 9.
able actuating mechanism, such as a hydraulic actuator
48.- 'Ihis- actuator 48 is designed to shift a feed pawl 50 35 From thisV position the retaining washer may be ad
vanced by a hydraulic actuator 96 from the dotted line
forwardly and rearwardly to impart intermittent move
position to the solid line position illustrated in FIG. 9;
ment tothe tablel in the directionindicated by the direc
In this latter position, the retaining washer 36 is located
tional arrow in FIG. 1. The pawl 50 is adapted to engage
in axial yalignment with the pin 72 and a hydraulic actu
aratchetmember 52 supportedby a vertical shaft 54. As
the pawl 50 reaches the limit- of its forward movement, a 40 ator 98.y The hydraulic actuator A98 carries an actuating
member or head 10i), which is equipped withoppositely
suitable spring pressed index pin 56 interlocks with a
disposed lugs 102. As these lugs move downwardly,
complementary recess in a disc memberV 58 so as to secure
they are brought into engagement with complementary
Ythe table 46 in a fixed position during the retracting stroke
oppositely disposed lug portions G8 (see FIG. 6) of the
of thepawl 50; It is this-forward actuating movement of
the pawl 50 which causesthe table 46 to be intermittently 45 retaining washer so as to move said lug portions into regisf
tration lwith complementary recesses in the wall `of the
advanced so as to move a work-holding-Íìxture or plate 60
impeller hubV3-2. During this step in the operation, the
Ifrom one station to another, these stations being indicated
retainingwasher is pressed against the upper or outer
as Ystations numbered from l to 9. It is during the dwell
side o-f the seal device 64, as` clearly shown in FIG. 10.
of the table 46 occasioned during the retracting stroke of
the pawl 50 that the various assembly and testing opera 50 With the retaining washer 36 thus assembled with the
impeller hub 32, the supporting fixture 60 is advanced
tionsV about to be described, take place.
Station No. 1
Y
At StationNo. l, an impeller 26 is delivered to a com
plementary fixture plate 60 from a suitable impeller feeder
designated, generally, by the numeral 62. This feeder
may be of any conventional design adapted to supply parts
fromY Station No. 3 to StationrNo. 4.
Station No. 4
As illustrated in FIG. 1, an operator removes a pump
housing 22 from a conveyor 104 and places the housing in
Vsuperimposed relation with respect to the impeller 26 and
down a chute to a position of association with the ñxture
parts previously vassembled therewith. Thus, las shown
y6I). A hopper 64 of conventional design may be used to
in FIG. 10, the housing 22 is manually located byY dowels
keep the feeder mechanism `62> supplied with impeller 60 1106. lIn thisposition, the housing is in readiness to be
parts. Referring to FIG. 7, it will be noted that the in
yclamped against the supporting ñxture Á60 by a suitable
vention contemplates the direction ofA impeller parts from
clamping device designated, generally, by the numeral
the feeder 62 through a chute 66. In the vicinity of the
108. ‘In- FIG. 3, the clamping device |108 is disclosed . I
bottom of the chute 66 is a hydraulic actuating device or
more in detail. To shift the pivotally mounted clamping
mechanism V68, which, at the proper interval of time, 65 device 103 from unclamped to clamped position, a con»
moves forwardly to shift an impeller located in the vicinity
ventional hydraulic actuator mechanism .110 may be em
of the bottom of the chute (dotted line position) to the
ployed. As the pistonv of this actuator advances, it is
solid line position immediately beneath a secondhydraulic
brought into engagement with the clamping device 108
so as to firmly clamp the housing in position upon the
actuator 70. This hydraulic actuator 70 is employed to
push the impeller 26downwardly into telescopic associa 70 plate 60. In fact, it is preferred to employ a pair of
clamping devices Iand consequently, a pair of hydraulic
'tion with an upwardly projecting pin 72. This pin 72 is
4shiftedly supported Vwithin the fixture plate 60 and is resil
actuators, as shown in FIG. 1. With the housing >properly
locatedwith respect to the impeller, seal, and retaining
washer as `shown in FIG. l0, the supporting fixture plate
through the agency of a coil spring, the function of which
will be more `apparent as the description progresses. Suit 75 l60 mayl now be shifted so as to advance it to Station No. 5.
ieutly urged upwardly within . a depending portion 74
3,088,198
6
5
Station N0. 9
Station No. 5
'on No. 5, shaft and bearing assemblies 30 are
At Station No. 9, FIG. 15, the previously assembled
pump structure must be unclamped from the supporting
fixture or plate 66. This is accomplished by hydraulic
actuators 148 (see FIGS. 1 and 15). These hydraulic
dìrîctztêdailrom a feeder 112 through a chute 114~t_o the
dotted position `shown in FIG. l1. From this position, a
hydraulic actuator 116 is adapted to shift the assembly
30 into axial alignment with a bearing sect1on of the pump
actuators 148 function simultaneously so as to engage the
housing 24 and a hydraulic actuator 118. The actuator
l118 serves to move the `assembly 38 downwardly into
telescopic `association with the bearing section of the hous
clamp structures 108, as illustrated in FIG. 15. This
causes the clamps 108 to become disengaged from the
pump housing 24, thus permitting the coil spring 118 to
urge the pin 72 upwardly. The upward movement of the
pin 72 causes the pump housing 24 to become disengaged
from the locating pins 1116, and the pulley hub 40 is
ing 24. As the shaft y28 of the :assembly .116 moves down
wardly into the pump housing, it 1s brought into engage
ment »with the upper extremity of _the pm 72 and forces
the pin 72 downwardly so as to eject 1t from telescop1c
forced between a pair of clamp jaws 151i (see, particularly,
association with the retaining washer 36 «and the seal 34.
FIGS. 18 to 20, inclusive). The extent of upward move
ment of the supporting fixture or means 60 is limited by
The pin 72, when thus shifted by .the shaft 2S of the as
sembly 30, compresses a coil spring 118 interposed be
the head of a pin 149 (FIG. 3). 'I'hese clamping jaws
151D are resiliently urged toward each other by coil springs
tween a collar 121i= secured to the pin 72. and a threaded
152 housed within a frame structure 154. The entire
pump unit has now been elevated to a position which will
permit a fork member 156 to pass beneath the flange por
iton of the pulley hub 40. The advancement of the fork
plug 121. In other words, the pin 72 1s moved down
wardly against the yieldable res1stance of the spring 118..
In this manner, the shaft and bearmg asesmbly 3G _1s ulti
mately shifted to its position of lfinal assembly w1t-h the
pump housing, »as shown in FIG. l2. '_The Iforced fit of
156 is accomplished by a suitable hydraulic actuator 158.
This actuator 158 is pivotally supported at 160, FIG. 15,
and the opposite portion of the actuator, namely, the
piston rod, carries a pair of rollers 162. As these rollers
the bearing portion of the assembly 3i) within the comple
mentary wall portion of the pump housing is suñicient to
prevent the force of the spring 11S from dislodgmg the as
sembly lfrom the housing. With the assembly 30 thus
associated with fthe pump housing, the pump structure
is in readiness to be shifted to Station No. 6.
162 advance along the upper surfaces of elongated cam or
rail members 164, they are eventually brought into con
tact with the rise 166 of said cam members. At this point,
the fork 156 has reached a position beneath the pulley
30
Station N0. 6
hub 40 and, thus, the entire pump structure is elevated
suñiciently to clear the upper projecting portion of the
At Station No. 6 (see FIGS. 1 and 12), pulley hub
pin 72. Continued advancement of the `fork 156 causes
members 48 are directed from a suitable feeder 1122
the pulley hub 4@ to be disengaged from the clamping
through
1, servesatochute
retain124.
a supply
Conventional
of hub members
storage means,
4t) `for deliv
jaws 159 and ultimately shifted to the dotted position
35
shown in FIG. 15. At this position, the housing has be
ery to the `feeder 122. A hydraulic `actuator 128 vserves
lto shift hub members 40 from `the dotted to the solid lme
come located at Station No. 10 in readiness for testing.
position shown in FIG. l2. A hydraulic «actuator 130
Station No. 10
then functions to telescopically associate the hub mem
ber 40 with the exposed portion of the shaft 218 of .the
40
As the fork 156 is disengaged from the pulley hub 40
assembly ‘30. With the hub `member 40 thus forced into
position upon the shaft 28, the pump structure may now
be shifted to Station No. 7, through the agency of the
upon the return stroke of the actuator 158, the pump
structure is brought to rest upon a plate 16S, FIG. 16.
This plate 168 functions in the nature of a sealing plate
At Station No. 7, FIG. 13, water plugs are directed
gagement with the outer extremity of the water by-pass
nipple 44. Simultaneously, a second hydraulic actuator
from a suitable -feeder 132 through a chute 134 into axial
176 causes a sealing and water conducting head -178 to
and carries a water inlet conduit 170. As the pump struc
actuator 48 which operates the pawl 50 previously de
ture is located in this position, a hydraulic actuator 172
45
scribed.
function to move a sealing member 174 into sealing en
Station No. 7
alignment with a torque wrench mechanism designated, 50 be sealed against the outlet passages 180 of the pump
structure. A third hydraulic actuator 182 causes a rotary
generally, «by the numeral 136. This mechanism 136 may
torque mechanism 184 to be moved downwardly into
be of the conventionally rotatable overload release type;
driving engagement with the pulley hub 40. This causes
and as it is moved forwardly during the rotation thereof
the pump to be rotated at its required speeds, and water
by a suitable hydraulic actuator :138, the head of the plug
42 is engaged so `as to cause the plug to be screwed into a 55 directed through the inlet conduit 170 and outlet con
complementary aperture in the pump housing. Upon
retract-ion of the torque mechanism 136 following the
proper positioning of the plug y42, the assembled pump
unit may -be shifted to Station No. 8.
Station N0. 8
At Station No. 8 (see FIGS. 1 and 14), water by-pass
nipples 44 are directed from a suitable feeder mechanism
140 through a chute 142 to the position in FIG. 14. A
hydraulic actuator l144 then functions to move a conven
duit 186 is subjected to normal operating conditions. If
the pump meets the required high and low pressure tests,
the completely assembled structure is now in readiness to
be shifted by a suitable unloading position designated,
60 generally, by the numeral 188, FIG. 1, to a finished unit
conveyor 199. If the pump, as tested, does not meet the
prescribed requirements for test, it is shifted to a reject
conveyor 192. By having thel pressure testing conducted
at a point spaced outwardly from the path of movement
65 taken by the pump parts during the assembly thereof,
splash and drain conditions incident to the testing opera-tional rotatable torque wrench mechanism 146 to the right,
tion does not interfere or in any way contaminate the
FIG. 14, into engagement with the head of the water by~
parts being assembled at the various stations along the
pass nipple 44. This causes the nipple 44 to be screwed
predetermined path of assembly. Various conventional
into a complementary threaded aperture in the pump
pressure responsive and indicating devices (not shown)
70
housing. After the nipple 44 has been secured in position,
may be employed in performance of the tests.
actuator 144 serves to retract the torque wrench mech
Obviously, conventional hydraulic units, such as the
anism 146, and the pump unit is now ready to be shifted
units 194 and 196 as well as the control console 198
to Station No. 9. All of the constituent elements of the
diagrammatically illustrated in FIG. l, may be used to
pump have now been assembled and the device is ready
control the automatic functioning of the mechanisms pre
75 viously described. It is not necessary for a clear under
for testing.
3,088,198
7
8
tion to the alignment Ielements of successive assembly
standing of the present invention to include all of the de
tails of such arrangements-'and it will suihce to say that
iixtures moved into said one station, a later one of said
stations `constituting a housing applying station, pump
»shaft supplying means mounted to -supply >pump ¿shafts
to a'third one of said'stations, Vpump shaft applyingmeans
»A the _various-.hydraulic >actuators and the'like previously
described maybe automatically controlled from a central
.fpoint in a manner-wellknown to those skilled in this par
. ticular -art. y. Applicant is a hydraulic engineer of long
(standing, andas will appear from many patents which
»have been-issued to him, hydraulic units, actuators and
thelike, as well as controls therefor, have heretofore been
used extensively in instances Where sequential, timed func
t-ioning> of machine elements and the like is required.
Y
- located` at said third station for applying' pump `>-shafts to
>successive housing encased pump impellers‘supported-by
> successivev assembly'ñxtures moved into ‘said‘third-station,
pump receiving means disposed 'in coacting relation tofa
10 still later one of said stations to receive assembled pumps
» moved into lsaid last mentioned'station, track‘meanssup
porting said pump receiving -means andextending away
yfrom said last »mentioned station, hydraulic vactuating
From the foregoing, it will beapparent that the present
invent-ion makes itpossible to perform, in sequence, as
sembling operations, and finally 'a testing operation which
_makes for ~increased eiliciency, aswell as accuracy‘in'pro
. duction.
means operating at -said las-t mentioned' station- tofm‘ove
said pump‘recei-ving means along said `Stra-ck ‘means-to
transfer successive Iassembled pumps `away from'said last
- mentioned station, and'said track means bei-ng shaped to
' effect lifting of said receiving meansand the assembled
~ pump supported thereby upwardly from the housing'lo
By-intermittentlyrmoving pump parts along a
,"predetermined.pathithrough a series of'assembly stations,
Y and'finally to a-testing station, manual labor is reduced
to a` minimum, and the entire operation may be carried
on Within a -very limited floor space or area.
The latter 20 eating means ofthe associated assembly'«?xture'automati
is o_f extreme importance in these days of high costs of
-cally as an incident to movement of‘said receiving means
along the track means by said »actuating means.
'
building construction. ` `Furthermore, the assembly opera
tions or steps previously described may be carried out by
3. ’Apparatus vfor sequentially ‘assembling Vandv'te'sting
-unskilled persons, as distinguished from previously known
» pumps comprising, in combination, a rotatable assembly
methods and apparatus requiring the use of skilled Work 25 table, an'fannular. series of support `iixtui‘es on said table,
men.
« indexing' means coacting with said table'tointer'mittently
.
ÍWhile -certain specific disclosures have been made here
- index the latter rotatably to move said fixture-s vto ’succes
t infthe invention isnot, of necessity, limited to such dis~
sive ones cfan annular 4series of stationsyeach of‘said
¿closures- but vshouldrbe construed inthe light and Within
lfixtures including a -`depressible locating plungerspring
. the scope of claims appended hereto.
30 urged upwardly to a normal position; aplurality‘of‘said
stations being equipped respectively with impeller supply
VThe invention is herebyY Vclaimed as follows:
1. Apparatus-for sequentially assembling pumps, com
means, sealing element »supply means, washer supply
means,`-pump'shatft and bearing supply means, and >pulley
nprising, in'combinatiOn, a rotatable assembly table, a
series of circumferentially spaced assembly fixtures mount
hubïsupply means; hydraulically actuated transfer- means
>edïon said table,»spring means yieldably supporting each 35 associated with'each of said plurality ,of‘stationstoïtrans
V'of said iñxtures, indexing means coacting -withsaid table
:ferparts from theassociated supply means intooverlying
concentricrelation -to the locating plunger of the fixtures
dor vintermittently indexing v»the latter to a succession of
»angularly spaced positions to locate the individual as
positioned 'in the associated station, hydraulically'actu
sembly -iixtures in a succession ofy assembly stations, pump
ated pusher >means'm‘ounted at'each of said> plurality 'of
impeller >supplying means located ata -ñrstpf'said as 40 stations to move a' par-t Ifrom' the associated transfer means
sembly-stations, pump impeller applying means at said
:axially Vinto an 'assembled position von the iixture in the
fiirstf'sta-tion for applying a pump impeller to the- assembly
. associated station, pump housing clamping means onfeach
»dixture >in said'ñrst station, eachassembly -iixture'includ
Ving va yieldably supported depressible impeller locating
' of -said tixtures, an intermediate one of said“ stations con
stitutinga housing assembly station andL beingY equipped
f element, sealing device supply» means located `at a second 45 with hydraulic actuating means for' applying the-housing
Vofvsaìd stations, sealing device applying means at said
Ysecond-station ttor applying-a `sealing device to a pump
clamping means of the fixtures in «the housing assembly
station, another :one of Vsaid stations constituting a trans
” ter station equipped with hydraulically vactuatedhousing
I ini-pellet~ supportedY by «the lassembly lixture in said second
»f station, each Iof said Iassembly'iixtures including housing
clamp releasing means, two yieldably supported pulley
v clamping means, clamp applying means located at athird 50 hub guide jaws located at said transfer station in elevated
_one ofvsaid stationsfor Veñecting clamping of a pump
positions to receive therebetweenthe pulley hubsorf pump
>Vhousingapplied to avpump impeller supported by the
» »assemblies moved into the transfer station and released by
assemb-lyfñxture in the thirdV station, pump shaft supply
means located Vat a -fourth- one of said stations, pump shaft
^ the coacting housing vclamping means, a transfer track
extending across said transfer station to a testing station
applying means at said -fourthstation for applying a pump 55 out >of the annular path of said fixture, a pump> assembly
ï- shaft to'a housing encased pump impeller supported by
transfer fork supported on said track, hydraulic actuating
-the assembly jiixture in said'fourth station, transferY means
means coacting with said fork» to move- the latter along
ylocated at a íifth Vone of'said stations for transferring
-rto «a testing station successive assembled pumps ' moved
said track to transfer pump assemblies from vsaid transfer
station to said testingstation,- said track-including arise
therein which `eñîectslifting of a pump :assembly ìfrom said
fro-the fifth stationbysaid 'assembly fixtures, pump driving
» means at said testing» station movable into driving relation
Y fto«.an assembled pump-in- said »testing station, andñuid
~ supply >and discharge means ‘at said «testin g station movable
into connected relation to a pump in said »testing station.
Y2. Apparatus «for-sequentially assembling’pumps on> a
Ymass productionl basis, comprising, in combination, an
transferV station by said yfork .as an incident to transfer of
u the pump assembly to said testingstation, and hydrauli
`cally actuatedsealingand testing means located in said
-testing station for coaction' with pump assemblies trans
65
`ferred to said testing station.
l
t
'4. Apparatus'for sequentially assembling ‘water’ pumps,
f interconnected series of. assembly hutures, indexing means
~ rfor intermittently indexing said ñxtures in unison to lo
» series of .iixture plates‘loc'ated 'onV saidtable'v in circum
>catethe individual tix-tures in successive assembly sta
ferentially spaced relation to each other, coiled'compres
comprising, in combinationpa'rotary table, `an «annular
tions, A each- of said fixtures including »upwardly protruding 70 -sionY springs yieldably supporting each of ‘said-.plateson
`housing locating means and includingia `depressible align
?said table, a depressible locating plunger mounted iueach
- ment element which'protrudes upwardly, Virnpeller sup
' fixture plate andrfbeing spring urged upwardly to a guiding
y.plyirig meansufor'supplying pump impellers to one of said
position projecting Aabove the coactingplate, indexing
meansvcoacting with said table to index the latter rotat
Ȕ stations, Vimpeller applying means located at said one
`-ïstat'io'n'for ’applyingrpump' impellers into intertltting rela 75 ably to movefsaid plates‘to successiveïon'es'of 'an annular
3,088,198
9
one of said stations, hydraulically operated impeller
concentric relation to the locating plunger of the fixtures
positioned in the associated station, hydraulically actu
transfer means »at said first station for moving pump
ated pusher means mounted at each of said plurality «of
series of stations, pump impeller supply means at a first
impellers from said supply means into overlying coaxial
stations to move a part from the associated transfer means
relation to a locating plunger indexed into said first sta
tion, hydraulically lactuated pusher means in said first
axially into an assembled position on the fixture in the
associated station, pump housing 4clamping means on each
of said fixtures, an intermediate one of said stations in
station positioned to move impellers downwardly from
the impeller transfer means into telescoped relation to
»said series constituting a housing assembly station and
being equipped with hydraulic actuating means for ap
plying the housing clamping means o-f the fixtures in the
housing assembly station, another one of said stations
constituting a transfer station equipped with hydraulically
the plunger in said first station, ‘seal supply means posi
tioned to supply seals to a second one of said stations,
hydraulically actuated .transfer means positioned at said
second station positioned to transfer seals horizontally
into overlying coaxial relation to a locating plunger in
actuated housing clamp releasing means, ya transfer track
said second station, hydraulically actuated pusher means
extending across said transfer station to a testing station
positioned in said second station to move seals down 15 out of the annular path of said fixture, pump assembly
wardly from the seal transfer means into telescoped rela
transfer means supported on said track, hydraulic actuat
tion to a locating plunger in said second station, washer
ing means coacting with said transfer means to move the
latter along said track to transfer pump assemblies from
supply means positioned in a third one of said stations,
hydraulically actuated transfer means positioned at said
said transfer station to said testing station, and said track
third station for moving washers horizontally from said 20 including a rise therein which effects lifting of a pump
washer supply means into overlying coaxial relation to a
assembly from said trans-fer station as »an incident to the
plunger in said third station, ya hydraulically actuated
beginning of transfer movement of the assembly to said
testing station.
pusher mounted in said third station to move washers
6. Apparatus for assembling water pumps, comprising,
into telescoping relation to locating plungers therein, each
of said fixture plates including housing locating projec
in combination, a rotary table, an annular series of as
tions thereon, pump housing clamp means associ-ated with
sembly fixtures mounted on said table, a depressible lo
cating plunger mounted in each fixture and -being spring
urged upwardly to a projecting guiding position, indexing
constituting la housing loading station equipped with
means coacting with said table to index the latter rotatably
hydraulic `actuating means for operating the housing
clamps of fixture plates moved into the fourth station, 30 to move said fixtures through a series of stations, hydrau
each of said fixture plates, a fourth one of the stations
shaft and hearing feeding means positioned in a fifth one
of said stations, hydraulically ractuated transfer means
mounted in said fifth station for moving shafts and bear
lically operated impeller transfer means at said first one
of said stations for moving pump impellers into overlying
coaxial relation to a locating plunger indexed into said
ings horizontally into overlying -coaxial relation to locat
first station, hydraulically actuated pusher means in said
ing plungers indexed into said fifth station; hydraulically 35 ñrst station positioned to move impellers downwardly from
actuated pusher means positioned in said ñfth station for
the impeller transfer means into telescoped relation to
moving shafts and bearings downwardly into telescoped
relation to housings, washers, seals, and impellers located
in the fifth station thereby depressing locating plungers
actuated seal transfer means positioned in a second one
the locating plunger in said first station, hydraulically
of said stations to transfer seals into overlying coaxial rela
in said fifth station, pulley -hub ‘feeder means in a sixth 40 tion to a locating plunger in said second station, hydrau
lically actuated pusher means positioned in said second
one of said stations, hydraulic transfer means for moving
station to move seals downwardly from the seal transfer
said pulley hubs horizontally into coaxial relation to
means into telescoped relation to a locating plunger in
pump shafts in said sixth station, hydraulic pusher means
said second station, hydraulically actuated washer trans
positioned in said sixth station for moving pulley hubs
fer means positioned in a third one of said stations for
axially into assembled relation to ptunp shafts, another
one of said stations constituting a transfer station in
which ‘two pulley hub guide jaws are yieldably mounted
in elevated positions, hydraulic `clamp release means po
sitioned in said transfer station to release housing clamps
therein to effect upward movement into guided relation 50
to said jaws of a pump assembly in said transfer station
yby the spring urged locating plunger in said transfer sta
tion, a transfer fork supported on :a track extending across
moving washers into overlying coaxial relation to a plunger
in said third station, a hydraulically actuated pusher
mounted in said third station to move Washers axially
into telescoping relation to locating plungers therein, pump
housing clamp means associated with each of said fixtures,
a fourth one of the stations constituting a housing loading
station equipped with hydraulic actuating means for op
erating the housing clamps of fixtures moved into the
fourth station, hydraulically actuated transfer means
the transfer station to a test station, hydraulic actuating
means for moving said transfer fork `along said track to 55 mounted in a fifth one of said stations for moving shafts
move pump assemblies from said transfer station to said
test station, said track defining a rise therein alined with
said transfer station to effect lifting of a pump assembly
from said `transfer station for movement to said »test sta
tion, and pump testing means mounted in said test sta
tion for testing pump assemblies moved thereinto.
5. Apparatus for sequentially assembling 'and testing
pumps comprising, in combination, a rota-table assembly
and bearings into overlying lcoaxial relation to locating
plungers indexed into said fifth station, hydraulically ac
tuated pusher means positioned in said fifth station for
moving a shaft and bearing downwardly against a locat
ing plunger in the fifth station and into assembled posi
60
tions on a fixture in said fifth station, hydraulic transfer
means for moving pulley hubs into coaxial relation to
pump shafts in a sixth one of said stations, hydraulic
pusher means positioned in said sixth station for moving
pulley
hubs axially into assembled relation to pump shafts,
indexing means coacting with said table to intermittently 65
table, an annular series of support fixtures on said table,
index the latter rotatably to move said fixtures to suc
cessive ones of an annular series of stations, each of said
another one of said stations constituting a transfer station,
pump assembly guide means positioned above said trans
fer station, hydraulic clamp release means positioned in
fixtures including a depressible locating plunger spring
said transfer station to release housing clamps therein to
urged upwardly to a normal position; a plurality of said
stations being equipped respectively with impeller sup 70 effect upward movement into guided relation to guide
means of a pump assembly in said transfer station by
ply means, sealing element supply means, washer supply
the spring urged locating plunger in said transfer station,
means, pu-mp shaft and bearing supply means, and pulley
hydraulically actuated transfer means for moving pump
hub supply means; hydraulically ‘actuated transfer means
assemblies from said transfer station to a test station re
associated with each of said plurality of stations to trans
fer parts from the associated supply means into overlyin-g 75 moved from the rotary path of said fixtures, and pump test
3,088,198
11
12
ing means mounted in said test station »for testing pump
pulley hub feeding means in a sixth one of said stations,
hydraulic pusher means positioned in said sixth station for ’
assemblies movredthereintû-
'
7. Apparatus for assembling centrifugal pumps, com
prising, in combination, a rotary table, an »annular series
of assembly ñxtures -on saidtahle, a depressigble locating
moving pulley hubs axially into assembled Yrelation to
pump shafts, another> one of said stations constituting
a transfer station equippedwith hydraulic clamp release
plunger mounted inveach fixture, indexing means coacting
means lfor releasing Vthe housing clamps on ñxtures moved
into the transfer station, hydraulically actuated transfer
means for moving pump assemblies from said transfer
with Vsaid table to index the latter to move saidv ñxtures
through a series of stations, pump impeller `feeding means
at a _iirstone of said stations,y hydraulically actuated -pusher
means positioned atsaid Vñrst station to move impellers 10
station to a -test station removed `from the-path of said
axially into telescoped relation to the plunger in alíixture
fixtures, andrrpump testing means mounted in said test
station for testing pump assemblies moved thereinto.
in said ñrst station, Iseal feeding means positioned to feed
impeller seals to asecondone of said stations, hydraulical
ly actuated pusher means positioned insaidsecond station
ReferencesvCited in the tile of this patent
UNITED STATES PATENTSY
to move seals axially into telescoped relation to a locating 15
plunger in said secondistation, Washer supply means posi
tioned in a third one of said stations, a hydraulically actu
ated pusher mounted in saidthird station to move washers
into telescoping relation to locating plungers therein, pump
housing clamp means associated Withveachof said fixtures,
akfourthone ofthe stations constituting a housing loading
wstation equippedr with hydraulic >actuating means for _oper
ating the housing clamps of fixturesV moved'y into said
fourth station, shaft and hearing feeding means positioned
Vin a'fiith one of said stations; hydraulically actuated push
er means positioned in said tifth station for moving shafts
and hearings axially into telescoped relation to housing
washers, seals, and impellers located in said ñfth station,
20
25
2,191,917
2,207,371
Sheldrick __________ ____-._ Feb. 27, _1940
Blackmore _____________ __ July 9, 1940
2,297,950~
FlaWS ...... -Y__.___,....____.. Oct. 6, 1942
2,339,807
Rau __________________ .__ Ian. 25, 1944
v2,380,742
Flaws ________ _i____k____- July 31', 1945
2,431,279
Remington ..-7---.____ __ NOV. 18,1947
2,620,553
Schultz ______ __...._.._Y........_ Dec. 9, _1952
2,734,258
Schultz ...... _..
2,746,132
oliver ...... __V_V__V__-_V__ May 22, 1956
2,753,619
Franklin ____________ _'___ July l0, 1.956
___ Feb. 14, 1956
OTHER REFERENCES
“New Techniques Build ’57 Cars,” American Machinist,
pages4145-147, November 5, 1_956.
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