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Патент USA US2106830

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Feb. 1, 1938.
w_ w, cRlLEY
2,106,830
FORGING MACHINE
Filed Feb. 6, 1956
3 Sheets-Sheet l
INVENTOR,
jfig 1
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W/ll/AM W cR/LE)’
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ATTORNEY.
Feb 1, 193.8°
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w. w. CRlLEY
2,106,330
FORGING MACHINE
Filed Feb. 6, 1936 _
47
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3 Sheets-Sheet 2
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55'
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INVENTOR,
Mum/v WC'R/LEY,
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ATTORNEY.
5
Patented Feb. 1, 1938
2,106,830;
UNITED STATES
PATENT 0mm
2,106,830
FORGING momma
William W. Oriley, Cleveland, Ohio '
_
Application February 6, 1936, SerlalNo. $62,641
3 Claims.
This invention relates to an improvement in
forging machines, and more speci?cally is direct;
ed to a device for maintaining rigidity of the
blank gripper die carrying parts of the frame of
Oi such machines, and designed to facilitate the re
moval of large forgings, and further to» permit
access to the dies and blank gripping members.
One object of the present invention is the pro
vision of a transverse tie clamp of special design
10 for forging machines or the like which shall not
only effectively prevent springing of the frame
and consequent spreading of the blank gripping
members when the machine is in operation, but
contributes to an improved design of the body of
the machine.
Another object of the invention is to provide a
transverse tie clamp for forging machines which
is especially designed to permit access to the dies
and blank gripping members and also to facilitate
20 the removal of bulky forgings from the machine.
In large forging machines of the type disclosed,
it is essential to provide a machine having die
carrying frame jaws which will not spread or dis
tort under the great forces set up- while the ma
25 chine is in operation.
Applicant is aware that previous attempts have
been made in the design of forging machines to
make the dies and other parts thereof more ac
cessible than machines heretofore constructed.
Machines have been built without the usual trans
verse tie members across the side portions of the
frame. Such machines, however, are more ex
pensive to manufacture because of the large
amount of material necessary.
There are inher
35 ent di?iculties in machining and handling the
castings. Moreover, a machine of the above con
struction must necessarily be so much greater in
width than applicant's machine, of a size designed
to handle the same work, that the frame mustbe
40 made in two sections in order to comply withithe
present railroad shipping clearance requirements.
These two sections must be tied together on as
45
(01. 18-13)
nite clearance must be maintained between the
loweredge of the transverse member. and the
blank gripping die elements of a machine in order
to provide accessibility of these elements and also
to facilitate removal of the forgings,
5
A still further object of the invention is to
provide a transverse tie clam-p which, compared to
others, is inexpensive to manufacture and easily
applied.
7
,
Other objects'may be-apparent from the fol 10
lowing speci?cation, .which refers to the accom
panying drawings.
_
In thedrawingszw
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Fig. 1 is a plan view of a forgingvmachine show
ing the present invention applied thereto.
15
Fig. 2 is afront elevation of the machine shown
in Fig. 1.
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Fig. 3 is a perspective view of the transverse
tie clamp.
~
Fig. 4 is a. fragmentary front elevation of a forg 20
ing machine-(showing one modi?cation of the tie
clamp construction applied thereto.
Fig. 5 is a fragmentary plan view of the device
shown invFlg. 4.
Referring to the drawings, a forging with a 25
box-like frame I is shownv having side portions 2
and 3 extending longitudinally and being spaced
to form awork receiving opening indicated at 4
at the front of the machine.
The machine-is provided with a pair of blank 30
gripping die members as at 5 and .6, carried in the
frame near the front end, one of which may be
stationary and the other capable of constrained
movement transyerselyiof the machine in a guide
way as at 1.
Each, of therblank gripping membersS .and B
.35
may haveone-or vmore horizontal grooves shown
at *8 and H. respectively, formed in the engaging
surfaces thereof, which are adapted to register
with each otherand to produce openings as at I2 40
for encircling and tightly gripping a portion of
blank stock prior tosand during the forging op
sembly by several large longitudinal tie members,
which is an expensive and unsatisfactory method
eration. ' The innerendof the openings I2 may
of connection. .
tion of the-stock isiforced to ?ow under the'pres
sure ,exertedby theiformingdie.
Each blank ‘musty-be ?rmly held against subse
quent movement during the forging operation, in
frictional engagement between the blank .grip
ping members zby van extremely heavy'transverse '59
force-applied to’ themovable member 6. Fre
,
»Another object of the invention is to provide a
forging machine with a transverse tie clamp
which is located as near aspossible'to the center
of transverse pressure and still not interfere with
'50 the removal of forgings or the accessibility of dies
or the blank grip-ping members.
"
terminate inicav'ities as at I3 into which the por
Heretofore, the transverse tie members have
either passed beneath or above the‘usual longi
quentlythe Im'agnitudeof this force reaches sev
eral hundred tons-which is su?icientltospring or
tudinal tie bar. Those familiar with theart of
distort an :open 'type'irame'so as :to cause the
gripping membersito lioos'en their hold on the
5.5 forging machine construction realize that :a den
2
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2,106,830.
blank and allow it to slip when the force of the
forging die is applied thereto.
Since much of the success of such a forging
machine relies on its ability to positively hold
these blanks in a de?nite position, it follows that
a large amount of this responsibility depends
upon the proper design and construction of a
transverse frame reinforcing member or tie
clamp, which will hereinafter be described in
tie clamp shown in Figs. 1, 2, and 3, in which the
end is pivoted by a hinge pin ‘55 projecting
through a pair of spaced lugs 56 on one side
of the machine frame, and also through a suit
able opening provided in one end of the clamp
51 which lies in the space between lugs 56. In
wardly tapering shoulders v58 formed on lugs 6|
are adapted to register or abut with correspond
ing shoulders $2 located adjacent either end of
10
the clamp 57.
The tapering shoulders 55 and 62 facilitate
A die member as at “having a'die formation
I5 may be removably secured to a cross head I6 swinging the clamp member 5? open and closed
and is adapted to register with a cavity as at‘ -. with respect to the frame, and also assure a
10
detail.
15
and 6.
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'
I3 in the ends of the blank gripping members?!
'“
The cross head I6 is constrained? to move Ion‘
tight-?tting metallic contact between the abutting
15
‘surfaces.
The end of the tie clamp opposite the hinge
.may be secured to the lug 55 or the machine
‘frame‘as by screws 83. It will be noted that
cross head is caused to reciprocate betweenthe , in this modi?cation also the shoulders 58 and
guides by a connecting rod 22 and a crank shaft 52 carry the entire transverse tie clamp load in
gitudinally of the machine in a suitable ,recess
I‘! which is de?ned by guides 18 "and 2|"; ‘The
23 which may be driven by a motor and belt, not
the same manner as those in the heretofore de
shown,'a pulley 21, ‘shaft 28, pinion 3|, and 'gear
scribed form.
32'
i
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p
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‘ Each of the side'portions 2 and 3 may be pro
25 vided with heavy lugs as vat ‘35 and 36,v respec
tively,>which arev locatedv forwardly or to the
rear of the~blankgripping members 5 and 6 as
indicated in Fig. '1'.‘ The upper faces of‘the lugs
35 and 36 have formed thereon suitable vertical
30
dotted lines in Fig. 4, and to permit further ac
cessibility to the working parts of the machine.
The size and
of the clamp on a machine
of the present type are such as to require the
assistance of a crane or other hoisting device to
' In Fig. 3 a'transvers'e tie clamp 4| is shown
remove-and replace them.
having the lower surfaces adjacentfth‘e ends pro
vided with complementary shoulders‘ 42 and 43
which are suitably spaced'and adapted to snugly
engage theshoulders 31 and ‘38, respectively.
The end portions of the- tie ‘clamp including
frame is
and the strength greater than a
machine‘ having the usual type and size of trans
verse bar lying above the longitudinal bar be 35
than the‘ intermediate portion‘ 44 in order to
provide as large a bearing surface on these shoul~
40 ders to- sustain the great pressure ideveloped
without peening down and also'to assure trans
verse alignment <thereof with respect to the
framea
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4
The usual transverse tie bars areKhe'avy-‘cylin
45 drical members threaded on both-ends and pro
vided - with
large vnuts. ‘These bars project
through suitable) openings invlugs'located adja
cent the sides of the-frame.
The transverse load
is carried entirely by thethr'eads on the bars.
55
transverse clamp to be swung open as shown by 25
parallel‘ shoulders‘ as at-3'| and‘ 38, respectively.
the shoulders 42 and 43 may be somewhat wider
50
The transverse tie clamp 5'! must necessarily
lie
the longitudinal tie bar 41 to allow the
In applicant’stie clamp,-however,-it will be
seen that a muchless'expensive construction is
employed and a far- greater efficiency vobtained
in regard to strength and maintenance; vThe
transverse load 'is carried entirely by the regis
tering shoulders on the lugs and the‘ tie clamp
which is held in. place on the lugs by cap screws
5| which may be easily and quickly removed and
replaced by the use of a wrench of a size‘not dif
?cult to handle.
.
i
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' . 1
The tie clamp. 4| is shown somewhatenlarged
near the center in the form of‘ a hub as at‘ 45
to provide anopening 46 for embracing a longi
tudinal tie bar 4T'which acts to reinforce the
frame acrossthe guideway'l and the opening 4.
From' an examination of Fig. 2,r~it will also be
65
seen that through thezuse of the'clamp 4| which
embraces the member 41, the: frame heightimay
be, considerably less than that of a machine em
ploying the usual heavy cylindrical transverse
memberwhich lies entirely ‘above the longitudi
nal member 41, and alsoithe'franie strength is
greatly improved. Furthermore, it is possible to
materially reduce the total weight-and-cost of
a machine by the use of. such a ‘clamp.- .
.
vFigs. 4 and‘ 5. illustrate a modi?cation of the
' In this modi?cation also the head room of the
cause the member 51 is slightly arched, as shown
in Fig. Zl, to clear the member 4i’ and to bring
the abutting shoulders nearer the center of trans
verse pressure.
‘It will also be seen that applicant’s clamp does 40
not hinder the removal of large forgings from the 1
machine, which is an awkward and time-con
suming operation in machines where the trans
verse rod lies beneath the longitudinal member
and thus only a short distance above the work 45
receiving opening.
From the foregoing description, it will be seen
that the location of applicant’s transverse tie
clamps permits adjustment and replacement of
the blank gripping members to be made more
quickly’ and conveniently than such changes on
a machine employing the usual type of trans
verse clamp. Furthermore, the present tie clamp
is more effective in maintaining rigidity of the
frame than is a conventional reinforcing mem
ber because of the relatively close proximity of
applicant’s device to the center of transverse
pressure.
In a machine employing the usual transverse
tie bar which is located above the longitudinal bar,
the forces may be sufficient to cause the frame
to spring due to the inherently great distance of
such a bar from the center of pressure in the ma
chine frame.
,
I It will also be seen that applicant’s tie clamp
does not hinder the removal of large forgings
from the machine, as would be the case should
the transverse tie rod be placed beneath the lon
gitudinal tie rod.
65
,
The present showings are not intended to
speci?cally limit the construction thereto, since
other forms may occur to those skilled in the
'art without departing from the scope of the in
vention as de?ned in the annexed claims.
75
2,106,830
3
Having thus described my invention, what I
the inwardly facing shoulders, said longitudinal
claim is:
1. In a horizontal forging machine having a
horizontal frame, one portion thereof being sub
stantially U-shaped in upright cross section,
transversely spaced lugs at the free ends of the
tie bar having a portion overlying a portion of
the transverse tie member, said transverse tie
U-shaped portion respectively and extending up
wardly of the frame and terminating longitudi
nally of the frame short of the ends of the frame,
10 clamping dies relatively movable laterally of the
frame within the U-shaped portion and buttressed
laterally thereby, a ram and cooperating die
relatively movable longitudinally of the frame,
whereby said U-shaped portion is stressed during
15 operation of the ram and dies and tends to
spread transversely of the frame, a longitudinal
tie bar reinforcing the frame longitudinally, a
transverse tie member having inwardly facing
shoulders near the ends thereof, said lugs hav
20 ing outwardly facing shoulders in abutting rela
tion to the inwardly facing shoulders, said trans
verse tie member having a hole extending longi
tudinally of the frame for accommodating the
longitudinal tie bar, said longitudinal tie bar be
25 ing offset laterally of the frame from the work
engaging plane of the gripping dies, said trans
verse tie member being movable along the longi
tudinal tie bar to a position wherein the shoul
ders on the transverse tie member are free from
30 the shoulders on the transversely spaced lugs, and
the end portions of the transverse tie member are
spaced longitudinally of the frame beyond the
upper surface of the lugs so that the transverse
tie member may be tilted relative to the frame
35 to permit greater ease of access to the dies while
the longitudinal tie bar is in place.
2. In a horizontal forging machine having a
horizontal frame, one portion thereof being sub
stantially U-shaped in upright cross section,
transversely spaced lugs at the free ends of the
40 U-shaped portion respectively and extending up
wardly of the frame and terminating longitudi
nally of the frame short of the ends of the frame,
clamping dies relatively movable laterally of the
frame within the U-shaped portion and but
45 tressed laterally thereby, a ram and cooperating
die relatively movable longitudinally of the frame,
whereby said U-shaped portion is stressed during
operation and tends to spread transversely of the
frame, a longitudinal tie bar reinforcing the
50 frame longitudinally, said longitudinal tie bar
being offset laterally of the frame from the work
engaging plane of the clamping dies, a trans
verse tie member having inwardly facing shoul
ders near the ends thereof, said lugs having out
55 wardly facing shoulders in abutting relation to
member being movable along the longitudinal tie
bar to a position wherein the shoulders on the
transverse tie member are free from the shoul
ders on the transversely spaced lugs and the end
portions of the transverse tie member are offset
from the upper surfaces of the lugs longitudinally
of the frame so that the transverse tie member 10
can be removed from its clamping position rela
tive to the frame to permit greater ease of access
to the dies while the longitudinal tie member
remains in place by sliding the transverse tie
member along the longitudinal member to a posi 15
tion beyond the lugs and then tilting the trans
verse member.
3. In a horizontal forging machine having a
horizontal frame, one portion thereof being sub
stantially U-shaped in upright cross section, 20
transversely spaced lugs at the free ends of the
U-shaped portion respectively and extending up
wardly of the frame and terminating longitudi
nally of the frame short of the ends of the frame,
clamping dies relatively movable laterally of the 25
frame within the U-shaped portion and but
tressed laterally thereby, a ram and cooperating
die relatively movable longitudinally of the frame,
whereby said U-shaped portion is stressed during
operation and tends to spread transversely of the 30
frame, a longitudinal tie bar reinforcing the
frame longitudinally, said longitudinal tie bar
being offset laterally of the frame from the work
engaging plane of the gripping dies, a transverse
tie member having inwardly facing shoulders
near the ends thereof, said lugs having outwardly
facing shoulders in abutting relation to the in
wardly facing shoulders, said longitudinal tie bar
having a portion overlying a portion of the trans
verse tie member, said transverse tie member nor- '
mally being in a position forwardly of the grip
ping dies and being movable along the longi
tudinal tie bar to a position wherein the shoulders
on the transverse tie member are free from the
shoulders on the transversely spaced lugs and 45
the end portions of the transverse tie member
are offset from the upper surfaces of the lugs so
that the transverse tie member can be removed
from its clamping position relative to the frame
to permit greater ease of access to the dies while 50
the longitudinal tie bar remains in place by slid
ing the transverse tie member along the longi
tudinal member to a position beyond the lugs and
then tilting the transverse member.
WILLIAM W. CRILEY.
55
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