close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2406780

код для вставки
Patented Sept. 3, 1946
UNITED
2,400,780
STATES
'
PATENT Y OFFICE
2,406,780
'
'
rRoFnmGMILLING CUTTER
.
Alois Kutscha, Chicago, Ill.
. .Application vApril '122, 1943, Serial No.484,016
.5 Claimsj (ci. 29-105)
.1
Y
l
The present invention relates to a milling cut
ter -assembly having a ¿plurality Iof .spaced »arms
each adapted -tc carry abutting blade er bit ¿for
,milling profiles,-etc.
work.
¿
„
-
ing the position of the cutter blade ror bit 'with
in its `mounting »after `it has become worn vandre
sharpened.
Figiure -6
>Each blade Fer -bít 'is .mount
.ed in -position »to -mill longitudinally and radially
of the .axis of the cutter head to ,thereby ‘most
eiîectively mill profiles or to'recess a »castingor
other
v
y
'
lIîhe invention further fcomprehends a novel
means and manner of adjusting each :cutter bit
.or blade »within its ’mounting to :assure fop
“timum `cutting .eiîect and to‘insure or Ypermit
.most effective use .of athe bits Yor blades and .for 'a
.maximum period. -It‘-will -be readily appreciated
a view-'showing in .-front elevation
an illustrative embodiment of .a- cutter bit or
blade, the `initial positionof this -cutter .blade -or
bit and the -novel manner ‘of mounting :it being
shown in dotted outline, and .subsequently îad-justed -position of the'rzblade `being shownzin Kfull
outline.
.
v
-~
1
'
>
f
'
Referring more particularly to the embodi- v
.ment -selected to illustrate the invention, the
novel Vmilling cutter assembly is shown »at il Vand
provided with »a plurality of spaced «projections
from 'the illustrative :embodiment of _cutter vhead 15 2 providing -a novel support nand mounting `for a
.plurality of cutter :bits ,or blades 3. The assem
herein disclosed .that lthe spaced arms ,or pro
bly is shown Y'as mounted .upon and .rotatable
jections are -so constructed and arranged as ‘to
.from :a vertically arranged .shaft H1 .driven from
reffect -a considerable saving in metal over prior
any suitable .source ,of power. «Each Íprojection
types .of heads, :and that 4they novel construction
`of cutter ybits ~or blades is Asuchas to >alsoallow 20 .is-slottedcr 'recessed at xoneside thereof at 5 :for
¿for an appreciable :saving inthe high grade 4tool
steel necessary .for Atheir `cutting edges lor rsur
faces. ‘Forexampla the body .of f each 3bit -orfblade
may be of :a relativelycheapìmetal >with-»only -the
>cutting edges of a high grade tool steel.
'
^
Further objects are to ¿provide a construction
'the reception-of one »of the-‘cutting bits-or -blades
Q3 land with «the outer surface of this VAprojection
which may be preferably tapered fat «6 and :pro
vided
three openings Tl .sui-tablyspaced apart
fand »arranged Tin »triangular formation 'for ithe re
fception Y.ef' locking bolts »8 l‘carried »in similarly ar
ranged recesses Yor `.openings :in a locking -plate A9.l
Each cutter -bit or blade Íis preferably Yprovided
`with ñve lopenings =|-0 with 'three vof these Aopen-
.of maximum simplicity, efficiency, economy and
‘ea-se of >assembly fand operation, and -such 'further
objects, advantages and-.capabilities as `will vlater
more fully Vappear ïand ;a-r_e .inherently possessed 30 yings 'spaced -in the same Vmanner ‘as .the openings
thereby.
’
.
The 'invention further .resides inthe construc
tion, `combination 'and yarrangement y'of parts
illustrated 'in the :accompanying drawing, and
in the locking plate v9 and projection 2 -for'the
reception of the Ylocking bolts and whereby Yeach
:bit Ior blade is rigidly anchored and Ylocked in
.posi-tion for operation upon'a Acasting or other
while there iis vshown ‘therein a `preferred em v35 Work.
As shown 4»in Figure »6, »each .blade «may be Iof
bodiment, 'it is .to be understood `that the same
is nsusceptible .of _modification >and `change, `and
comprehends -other :.details, ` arrangements
of
parts, features and l-cofnstructions vwithout .de
parting from the spirit fof the invention.
In vthe drawing:
’
‘ '
substantially triangular shape 1and provided with
`cutting edges Vor surfaces vIleand Ylf2 whereby to
milla profile such -as in the surface I3 and
'under-cut
~I4 of a casting-orotherobject I~5 upon
40
which »the milling cutter is operating. -Due .-t'o
perspective nf zthe .novel
»thefact that the cutting vbit or blade `isof «a high
:cutter :assembly- shown in lpositinnîer 'milling and
:grade steel, it :is highly >important that it be l’em
ployed to its _maximum efficiency. This is con
templated :and .the present invention ¿permits ythe
surfaces Il and `I2 to be sharpened whenever
.Figure 1 :is :a view
profiling a recess in an object for roasting.
Figure .2 'isa View .in side elevation of the cut
ter head assembly but with several of the arms
that becomes necessary.
As shown in Figure 4, when a new cutting
blade 3 is inserted into the cutter head or holder
assembly.
50 with its inner edge abutting the shoulder or rear
ward abutment of the recess, the three locking
Figure 4 is an enlarged fragmentary view in
removed to more clearly show the manner of
attaching the cutter tool or head to the shaft.
Figure 3 is a top plan view of the cutter head
horizontal cross-section through the mounting or
bolts 8 project through the aligned openings l0
support for a cutter blade or bit and taken on
in the blade or bit 3 and lock this blade rigidly
in position. Whenever the surfaces Il and I2
55 become suiñciently Worn, the blade may be re
the line 4_4 of Figure 2.
`
Figure 5 is a View similar to Figure 4 but show
'
2,406,780
4
3
moved and sharpened along surfaces substan
shoulder, a retaining plate substantially conform
tially parallel with those of Il and I2 and then
again inserted into the holder as shown in Fig
ure 5. At such time, the blade being of less
ing to the shape of the recess and provided with
a plurality of spaced locking bolts passing through
aligned openings in the bit and anchored in
dimensions than when new or initially applied,
two of the locking bolts 8 in the plate 9 are pro
aligned openings in the projection, and additional
openings in the bit for receiving certain of the
jected through the other two openings l0 in the
locking bolts and mounting the bit outwardly of
bit or blade and the third locking bolt 8 in the
plate engages the rear surface or inner edge of
the bit or blade and provides an abutment for
its initial position and in which position one of
the bolts provides an abutment for the rear edge
of the blade.
3. A cutting tool for a machine for milling pro
iiles comprising a cutter head having spaced out
wardly extending projections each to mount a
vcutting bit, one side of each projection recessed
for a greater portion of its length and provided
with a shoulder, a cutting bit having two of its
edges exposed for milling purposes and another
preventing retraction and rigidly holding each
bit or blade in position, as more clearly shown
in Figure 5. Thus, the purpose of each of the
ñve openings to allow for this dual adjustment,
will be appreciated.
,
The cutter head or cutting tool may be
mounted upon the shaft 4 by any suitable means.
As shown in Figure 2, the upper and lower sur
face of the head maybe recessed or counter
edge abutting against the shoulder, a retaining
plate for anchoring and retaining the cutting
bored at I6 and` I1, respectively, and provided 20 bit within the recess and projection and against
-with a tapered opening I8 for receiving the re
the shoulder, spaced locking bolts carried by the
plate and received in spaced aligned openings in
duced end of the shaft. The recess I6 is adapted
to receive a collar or enlargement on the shaft
the cutting bit and projection, and other open
ings provided in the cutting bit to be aligned with
and the recess or counterbore I1 receive a lock
nut or other means for locking the head to the 25 and receive certain of the locking bolts for per
threaded, reduced end of the shaft 4.
It will be readily appreciated that the cutter
mitting the bit to be adjusted to another posi
able therewith for the purpose desired, such for
having spaced outwardly extending projections
tion away from the shoulder when the initial
head is so designed and constructed that the bits
cutting surfaces thereof become worn, and means
or blades need not be of the shape or contour or
providing an abutment for the rear of the bit
purpose of the bits or blades 3 as therein shown, 30 in this latter position.
4. A cutting tool for a machine for milling pro
but other forms of bit, blades or tools with or
without ñttings or adapters, may be interchange
files in a metal casting comprising a cutter head
example as end cutters or milling blades, etc.
Having thus disclosed my invention, I claim:
1. A cutting tool for a milling machine com
prising a cutter head having a plurality of out
each to mount a cutting bit, one side of each pro
35 jection recessed for a greater portion of its length
and provided with a shoulder, a cutting bit mount
ed in the recess and having its cutting surface ex
posed and the rear edge of the bit abutting the
wardly extending projections, one side of each
projection being recessed for the reception of a
shoulder to prevent inward movement of the bit.
cutting bit and provided with a shoulder, a cut 40 a removable retaining plate substantially con
ting bit mounted within the recess and having
forming to the shape of the recess and provided
substantially the shape of a right-angle tri
with spaced locking bolts arranged in triangular
angle with the base and hypotenuse provided
formation and carried in the retaining plate and
with cutting edges and the other side seating
to be received in aligned openings in the bit and
against the shoulder, a plate for anchoring and 45 projection for rigidly locking the bit against
shifting from its predetermined position.
retaining the cutting bit within the recess and
projection, spaced locking bolts carried by the
5. A milling cutter assembly for milling pro
plate and received in spaced aligned openings
files, comprising a cutter head having a plurality
in the cutting bit and projection, and other open
of spaced projections, one side of each of the
ings provided in the cutting bit _to be aligned 50 projections being recessed axially and provided
with and receive certain of the locking bolts for
with a shoulder, a cutting blade of substan
permitting the bit to be adjusted to another
tially triangular formation to be received in each
position when the initial cutting surfaces thereof
recess and provided with milling surfaces at two
become worn, one of the locking bolts provid
of its sides and with its other side abutting the
ing an abutment against which the rear of the bit
shoulder, a plate for retaining each blade in posi
seats when in the latter adjustedY position.
tion, locking members carried in each plate and
projecting through aligned openings in each blade
2. A cutting tool for a machine for milling pro
iiles comprising a cutter head having spaced out
and received in aligned threaded openings in each
wardly extending projections each to mount a
arm, additional openings provided in each blade
cutting bit, one side of each projection recessed 60 and spaced from the ñrst mentioned openings for
for a greater portion of its length and provided
anchoring the blade in another position to permit
>with a shoulder, a cutting bit having substan
the blades to be re-sharpened and reused, and an
abutment against which the rear of the blade
tially the shape of a right angle triangle with
the base and hypotenuse provided with milling
surfaces and its other side abutting against the
abuts in this latter position.
V65
~
`
`
ALOIS KUTSCI-IA.
Документ
Категория
Без категории
Просмотров
0
Размер файла
378 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа