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Oct. 1, 1946.
J. R. HUNTLEY ' '
2,408,646
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MACHINE TOOL
Filed Augf2, 1945
2 Sheets-Sheet 1
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INVENTOR
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James R. Hzm il@ "
BY
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ATTORNEYS
Oct. 1, 1946.
J, R HUNTLEY
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2,408,646
MACHINE TooLFiled Aug. 2, 1945
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James K. Hzm?韊z
BY
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ATTORNEYS ?
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2,408,646
Patented Oct.. 1, 1,946
vUNITED STATES PATENT' 覨FICEv
2,408,645
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MACHINE Toor,
n' .rames n. Huntley, Hicksville., N. Y.,
" Application August 2, 1945', serial No. 608,535
11 Claims.
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(Cisca-ai)
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tion, of a modi馿d?form of a work stop shaft
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This invention relates to machine tools and
-particularly a device adapted to trim and/or
bearing and groove engaging projection in the
left-hand support.
There isprov'ided'l韎y> the present invention a
~ shape the end of a? tube, rod, or similar object.
. "Inthe use of 'tubing rin many industries, such
>means whereby a tube end, or work tov be op
erated upon, may be clamped, and then moved
toward rotating or moving cutting tools for the
purpose of? trimming and shaping the end of theA
work. Various types of tools maybe used which '
as the aircraft industry, tubes must be cut to
length and then a'bead, flare, or other opera
tion performed thereon requiring the tube ?t0
' have4 a trimmed and/or chamfered end.
s
In a
cutting operation by an abrasive wheel or a saw
rotate or move relative to the work, the tools > f
when thetube is out to length, an external and
internal burr will be 蚾rinedon the cut end which
used depending upon the particular operation to
be performed. In the form shown, a plurality
is not suitable or desirable in subsequent opera
-of toolsY are adjustably mounted in a rotating
tion- on thetubes such� as those mentioned.>
head. Means are provlded for correctly posi
One ofthe objects of the invention is to pro
f. tioning the tube in the clamp and for limiting
Vide a machine tool which can be used to cham
movement of the,y clamped work toward the tool
fer', trim, or otherwise operate on the ends of . means so as to perform the desired operation.V A
tubes or rods in a simple, quick, and facile man
single operating means or lever is' providedl for
ner.
When large numbers of `rtubes must be `
trimmed in the manufacture of a single item, it
is desirable and important to be able to trim the
clamping the work and thereafter for moving the f
clamped work toward the tool a predetermined
distance.
tube# ends in the quickest manner possible, and
In Fig. l, a work clamp or carriage' unit gem '
at the sam@` time maintain accurateand smoothV
surfaces thereon. Anotheroi the objects of the
present invention ' is to provide al means for
erally shown at l0 comprises two'clamping ele-'
ments or jaws Il and l2 which are pivoted on
Jaw ll may be sup
ported on guide l雔rby means of face plates "I4
f a guide. rod or piston i3.
clamping andV operating on an article with a
single movement of an operating lever. Another
object is to provide a simple work stop for posi
tioning the worl:v correctly inthe Iwork clamp
and 1:15 fastened on bot-h sides of 'right hand jaw
Il inany suitable manner such as- by_ screws l5.
Work stop orpositioner 29 is fixed? a 'predetere
each time and which is movable from the end 301 mined distance from the right hand faces offv the
of 籺he work piece as the work is moved into en
jaws so as to locate the end-of thework as it is
gagement with a tool. Itis to be understood that
placedwithin the open jaws by hand, or auto
articles other than tubes or rods may be >trimmed
matically, a predetermined distance to the right
by the invention described` herein. These yand
of- said jaws. The left-hand end (Figs. 1 andv 3)
other objects will become apparent from?v the
Lof work stop operating shaft 30 has a helical
following description and drawings whichare
groove Slt-herein which is engageable with a
merely exemplary;
?
In the drawings:
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projection 忪mounted in left-hand'bearing sup
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port 24.
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Fig. 1 is a perspective View of oneembodiment
As the carriage l0 is moved to the right, shaft
of the invention with portions broken away in 40 su wui be withdrawn te the right therewith
order to show 籺he various'parts with` greater ease.
through elongated hole 35 of the 'bearing support
Fig. 2 is a fragmentary?perspective Viewl of the
2li,` hole 35 being elongated so as-to allow for:
clamping and carriage unit Vwith portions Vthereof
the pivoting movement of the work> clamp;
Groove 32 in contact with projection 33 w韑l?cause
Fig. 3 is an elevation, partially in section, of the
stop 29 to be rotated ina clockwise'direction
broken
away.
machine.`
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(Figs. 1 and 4) so as to move out of the space 'be
.
Fig.r 4 isv an end view looking from the left of
Fig. 3 .with portions of the left support broken .
away.`
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tween the end of the tube located in the clampv
and the tools held 籭n rotating'tool yholder 36.
Shaft 30 is held in bearing 35 from longitudinal
Fig. >`5l is av vertical elevation, partiallyy in sec
movement thereof in any suitable manner and`
tion, of a modified form of the inventionv showing 5.05k may be adjustable longitudinally.v Carriage: stop
anaautomaticl means to operate the samel
37 limits the inward movement of the 'carriage
Fig.16'is a sectional view of an end of a trimmed
by contact with the face of the clamping car
piece of tubing showing the surfaces: which mayV
riage lll so, that the works` piece is carried a pre,
be cutby the device.;>
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Fig, 7v isa- fragmentary; View, partially in sec
determined distance# into engagement `with `the
2,408,646
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tools held by tool holder 36, said stop 31 being
as low as about 4� having been found to be sat
mounted on threaded bolt 28, said bolt being ad
isfactory.
justably carried in bearing support 24.
One end of "piston I3 is carried in bearing sup
Operating lever 38 is pivoted in bearing 39 in
port 24 and the other end in housing 25 by a suit
housing 25 and has spur gear 40 mounted on an v
able bushing. In the form shown, an opening is
provided at 14 slightly larger than chip protector
extension thereof. Spur gear 40 is engageable
with rack 4I, said rack being slidable on base 42
of the machine and positioned adjustably by
means of clamps 43.
.
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68 to allow the chip protector to slide Within the
housing 25. Piston I3 has spring 26 surrounding
,
At the left-hand endfof the rack are'located
10
- the same and vcontacting the wall 21 of housing
25T-縜nd 'the face 13 of bushing I1. , This serves to
urge'the' carriage IU to the left (Figf�) `'and away
from housing 25. The movement of the carriage
Eil to the left may be limited by contact of bush
ing I4 with support 24. The piston can be made
ter-clockwise direction (Figs. 1 and 3), rack 4I 15 stationary and the carriage slidable thereon in
will be drawn to the right, and cam surfaces 44
which case the dowel I6 would be omitted, A
and 4-5 will contact rollers 46 and 41 so as to
telescoping chip protector 69 may be provided.
separate said rollers and cause pivoting of jaws
Instead of providing an elongated hole 35 in
I I and I2 _relative to the center of piston I3 so as
the
left-hand support 24 to allow for pivoting
to clamp a piece of work which previously has 20 movement
of the clamping jaws, a pivoted arm
been placed within aperture 20 of the clamping
16 may be provided in support 24 as shown in Fig.
dies I3 and I9. Dies I3 and I9 may be held in
7, the upper end of support 24 being bifurcated
place by screws 56 and 51.
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cam surfaces 縤4 and 155, said surfaces being ar
ranged to Contact rollers 46 and 41 mounted on
the lower ends of the pivoted jaws I I and I2 re
spectively. As the lever 38 is rotated in a coun
so as to provide a slot for said arm. Arm 16 has
The cams or cam may take various forms and
a bushing 11 which is oscillatable on guide rod I3.
may or may not be integral with the rack or 25,
The Work stop shaft 30 is carried in aperture 18
operating bar.
at the right-hand end of the arm. There' is a
After the work is clamped firmly, the rack and
cams 44 and 45 will not be able to move further
projection 19 screw threadedly mounted in said
arm for engagement in the groove 32 of the work
stop shaft Si). A lock nut 80 may be provided for
when this occurs, further rotation of the oper 30. locking the projection in place. As the jaws are
ating lever 38 in the same direction will cause
closed, the pivoted arm 16 will move to the posi
carriage l D to move to the right against the com
longitudinally relative to the carriage I0 and,
pression of spring 26, piston I3 moving longitudi
nally through bearing 1D in housing 25. Spring
tion shown in the dotted lines 8 I;
Alternatively, the machine may be operated
26 previous to this has opposed movement of the 35 automatically by provision of an eccentric or cam
58 (Fig. 5), said cam being rotated by means of
worm
Wheel 59 and worm 60, Said cam can be
the work stop shaft 36 will be rotated, as previ
designed to engage an adjustable pin 6I mounted
ously described, so as to move the work gage or
on slide 62, the slide being movable longitudinally
work stop 29 out of the way between the tools
and the end of the work. The work is then moved 40 on the base of the machine in a manner similar
to that described for the rack. The slide has
into engagement with the tools held in rotating
cams 63 mounted on the end thereof similar to
head 36 and a chamfer, trimming, or other oper
the cams described for Figs. 1 to 4 inclusive. The
ation performed thereon.
slide
and cams may be started in operation man
The rotating tool head, for example. may carry
ually
or operated automatically in any desired
inside chamfer tool 53, outside chamfer tool 54, 45. fashion.
and end facing tool 55. It is to be understood,
In Fig. 6 will be found an example of one type
of course, that various combinations of tools and
of
work which may be done withthe machine
arrangements thereof may be used to meet the
wherein a tube 64 has an outside charnfer 65,
specific purpose for which the machine is to be
trimmed end 66, and inside chamfer 61.
employed.
50'
Various modifications may be made, such as
Tool head 36 may be carried by a rotatable
having
the carriage stationary and allowing the
shaft in bearings 48 and 49, said shaft being
housing and tool to move toward the carriage,
rotated by pulley 5D driven by motor 52.
without departing from the spirit of the inven
After completion of the trimming, or other
or the scope of the appended claims.
operation. operating lever 38 is rotated clockwise, 55 tion
I cla-im:
or released, whereupon spring 26 will cause car
l. In a machine of the character described, the
riage I6 to move away from the rotating tools and
combination comprising a tool; a work clamp for
be returned toward its original location and the
movement toward and away from said tool and
workreleased as the cams 44 and 4-5 are moved
from between the pivoted jaws. Dowel pin I6 60 movable to and from work to be clamped there
by; an operating member having a portion mov
mayv he provided passing through face plate I4
able toward said tool, said portion engaging the
and a suitable aperture in piston I3. Jaw I 2
work clamp, relative movement between said por
may have a bushing 1I surrounding piston I3
tion and work clamp toward the tool causing
fastened thereto by screws 12 to serve as the
pivot guide for said jaw. The aperture 23 of said 65 work engaging movement of the cla-mp and after
said work engagement, movement of the clamped
combined set of clamping dies is substantially
work toward the tool; and yieldable means to
the same, or slightly smaller, than that of the
restrain movement of said clamp relative to said
tube to be operated upon to provide proper grip
tool until said work has been firmly clamped.
ping. Jaws II and I2 are normally held in open
position by spring 2I, said spring serving to urge 70 2. In a machine of the character described,
the combination comprising a tool; a pivotedthelower ends 22 and 23 of the jaws II and I2
carriage. As the carriage moves to the right,-
together thereby separating the split dies I8 and
I9 so as to allow the work to be placed or re
work clamp' for movement toward and away from `
said tool and movable to and from work to' be
clamped thereby; an operating member having
moved; The amount of movement of the clamp
a portion movable toward said rtool, said portion
ing elements relative to each other can be small, 75 engaging said pivoted work clamp, relative move
2,408,646
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ment between said portion and work clamp
toward the tool causing work engaging move
ment of the clamp and after said work engage-Y-l
ment, movement of the clamped work toward the
tool; and yieldable means to restrain movement
of said work toward said tool until said work has
6
creased as the clamp and tool are moved relative
to each other.
>'7. In a machine of the character described, the
>combination comprising a tool; a pivoted work
3. In a machine of the character described,
clamp movable relatively toward and away from
said tool, the clamping movement being in a
plane angularly disposed to' the direction of the
movement of the clamp relative to said tool; op
y the combination comprisingVV a tool; a pivoted
erating means movable relative to said clamp to
work clamp for movement toward Aand away from
said tool and movable to and from work to be
closing to move said 'clamped work into operating
been firmly gripped.
,
close said clamp on a piece of Work and after said .
lclamped thereby, the work clamping movement , engagement with said tool; and yieldable means
to restrain movement of said clamp relative to
thereof being in a plane angularly disposed to_
the direction of movement of the clamp relative
to said tool; an operating member having a por
tion movable toward said tool, said portion en
gaging the work clamp, relative movement be
tween said portion and work clamp toward the
tool causing work engaging movement of the
clamp and after said work engagement, move
ment of the clamped work toward the tool; and
yieldable means to restrain movement of said
clamp relative to said tool until said work has `
said tool until said work has- been firmly clamped.
" 8. In a machine of the character described, the
combination comprising a tool means; a work
clamp movable toward said tool; a work stop be
tween said work clamp and tool for positioning
a piece of work in said clamp relative thereto;
operating means to iirst clamp work and there
after move said clamped work toward and into
engagement with said tool means; and means re
sponsive to movement of said clamp relative to
been iirmly clamped.
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4. In a machine of the character described, the ~
said tool to move said work stop from in front of ~
combination comprising a tool; a guide; a work
clampY pivoted on said guide for movement toward
and away from said tool and movable to and
from work to be clamped thereby, an operating
member having a portion movable toward said
toward said tool.
tool, said portion engaging the work clamp, rela
tive movement between said portion and work
of work in said clamp relative thereto, said stop
being carried by said clamp; operating means to
clamp toward said tool causing work engaging
駌st clamp work and thereafter to move said
the piece of clamped work as said work is moved
^
9. In a machine of the character described, the
combination comprising a tool; a work clamp
movable toward said tool; a work stopbetween
said work clamp and tool for positioning a piece
movement of the clamp and after said work en
clamped work toward and into engagement with K
gagement, movement of the clamped work toward
said tool means; and means responsive to move
the tool; and yieldable means to restrain move
ment of said clamp relative to said tool until said
Work has been 駌mly clamped.
5. In a machine of the character described, the `
combination comprising a tool; a guide; a pair
- of work clamps pivoted on said guide and mov
able toward and away from said tool and mov
able to and from work to be clamped; an oper
ating member having a cam movable toward said
tool, said cam engaging the'work clamps, rela
tive movement between said cam and work
clamps toward the tool causing work engaging
ment of said clamp relative to said tool to yrotate
said work stop from in front of said work piece.
10. In a machine of the character described,
the combination comprising 'a rotatable head
adapted to carry tools therein; a guide; a pair
of pivoted work clamps carried on said guide and
movable bodily toward and away from said ro
tating tool head; a work stop between said work
clamps and tool `for positioning a piece of Work
in said clamps relative thereto, said work stop
being rotatably mounted in one of said clamps;
operating means having a cam for iirst pivoting
said clamps into work clamping position and
gagement, movement of the clamped work toward y thereafter moving said clamped work into opera
said tool; a rack and pinion for reciprocating 50 tive engagement with said tool; and means re
sponsive to movement of said clamp relative to
said operating member; and yieldable means to
said tool engageable with said work stop to ro
restrain movement of said clamp relative to said
tate the stop from in front of a piece of clamped
, tool until said work has been iirmly clamped. �
work as said work is moved toward said tool.
6. In a machine of the character described, the
11.v In a machine of the character described.
combination comprising a tool; a work clamp for
the combination comprising a tool; a pair of piv
movement toward and away from said tool and
oted work clamps movable relatively toward and
movable to and from work to be clamped there
away from said tool; operating means for closing
by; an operating member having a portion mov
said clamps into work clamping position and for
able toward said tool, said portion engaging the
thereafter moving clamped work into operative
work clamp, relative movement between said por
engagement with said tool; a work stop between
tion and work clamp toward the tool causing work
said work clamp and tool for positioning a piece
engaging movement of the clamp and after said
of' work relative to said clamps, said stop being
work engagement, movement of the clamped
y rotatably mounted in one of said clamps; and a
work toward the tool; and spring means restrain
ing movement of said clamp relative to said tool 65 pivoted arm having means thereon to engage said
work stop and rotating the same as the work stop
until said work has been iirmly clamped so that
is moved with said clamps toward said tool.
the gripping force exerted on a piece of work of
JAMES R. HUNTLEY.
greater than a predetermined minimum size is in
movement of the clamps and after said work en
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