Delta Specialty/Delta/Delta-Rockwell/Rockwell PM 1643 & 1645 Toolmaker Tool and Cutter Grinder & Unihead Operating Manual Grinder

SERIES

DATE:

REPLACES: NONE

INDEX:

9-1-41

I2O.5.E

THE OELTA

MFC. CO., MILWAUIGE I, WIS.

OPERATING AND MAINTENANCE

Toolmaker Tool

In compiling

that the operator has

and cutters,

though

sibl€ to cov€r the

some lundamental data is given,

An

apprentice

information

In most

the sharpening

tools

and cuttets

chines

for

known
ening,

or by skilled m€chanics,

maximum production

A

dull tool or

fact that its

sirce

at each sharpening

edge.

In addition.

power,

spe€d, or r€move

in most

not

each

and cutter grinding, the Delta Toolmaker Surface

cannot be operated

cases, will not

In many shops where the

.iustify

type

of work such as surface

these

and how they should

entire art of cutter

or novice lequiring rnore

should refer

INTRODUCTION

manufacturing

and re-sharpeninA of

cutter w€ars away rapidly.

only a relativ€ly small

a dull tool

as

expense

the

and Cutter

Grinder

FOREWORD

instructions

a fair knowl€dge

we hav€ assured

of small tools

be sharpened. Al-

it

grinding

elemeDtary

to more complete oanuals

plants,

)) used

(Fig.

and accurat€

life is increas€d by frequent

wheo

restoring its correct cutting

or

at

much

stock as a sharp cutter, and

produce

amount

installing

of

the grinding, i.e.

multitude

the

on the

is of major importance

amount is r€moved

cutter

tbe maximum

quality

a

various

results.

consum€s more

cut or

of grinding

machine fo!

a

grinding.

is

impos-

in th€se

ma-

is

It

sharp-

feed and

finish.

does

and tool

or Tool

Grinder,

ed into

the Delta

of

Grinder,

stocks,

vides

ly any

designed

type

however,

Tool

of

a

su.iace
external

+24-955,

veloped

addition

scope

will

can

Grinders

Drill

ious

the following photographs

setups

also show

each

with them

can

erations required
thougb
tions

Stock

gov€rning

ience

stocks,

to
ening

tefs, this €an be

Tail

used,

INSTRUCTIONS

and

Cutter Grinding Attachment

as the basic machine,

a tool and cutter grinder

Tool

and Cutter

the Surface Grinder tahle.

The addition

consisting of

whe€l guards,

a suitable

type of

to

of grinding.

that this

of this

tbe tabl€, the head and tail

and tooth-rest assembly, pro-

arrangement

cutters, taper reamers,

meet the exacting

It

should be clearly

arrang€ment is

Grinding Machine

grinder

does

not adapt itself

circular grinding.

A Universal

see photograph pase

as an added

work

unit

head (Detta

of this unit results

of

operatiotrs which

A careful

reveal

undoubtedly

Presses,

To give

tool

study

of this

that with

or to other

etc., Ior other

general

a

and cutter g.inding

and points

a certain

be adapted

types

idea oI the methods

of advantage.

the equipprnent

setup. The

in order

The following

be accomplished

this table

can be performed

only

or with the

it. This

of the operator and upon

or collets lor the Unihead that may

hold

the tool to be sharpened. In the case

a reamer which is

Stock attachment. but

proper

the

operator

to do his work

table is

with respect

on

ditrerent types

shows that a number

with

Unihead, thele is no strict

depends la.gely

g€n€rally

applied directly

collet must 6rst be obtained

can easily be convert-

Grinder attachment on top

attachment to th€ Sudace

for sbarpening

requirements of

as the

t3) has

for

this

in

large increase

a

can

be

attachment in its

amount of ingenuity. it

to other

of machines, such

applications

operations, we

and

illustrations, numerous

and attachments

should become

gen€ral

a

either th€ Head

the mandiets for h€ad

if

the Unihead is to b€

24

GRINDERS

by sirnply mounting

practical-

etc., and is

this

und€rstood,

not a Universal

const rction of

for internal

Unihead, Catatos

also been d€-

attachment. and

perform€d.

makes oI Surface

as Lathes,

or purposes.

of doing var-

photographs

The

efiiciently

outline of

to the various

of cutters. Al-

of like opera-

upon the expe!-

be on hand

provided with

to

the Head and

the

or

the

in the

entirety.

show in

used for

Iamiliar

and

what

op-

and Tail

rule

of sharp-

cen-

for

it.

Attachh.nt with H.ad

and Tal Stock Only

Spiral Mills O.D. and corners.

Atta.hmcnt with

Stock and Uni-H.ad wiifi

propcr

H.ad and Tail

adaptc.

12

Spiral

End

Mills

Shell End

Mills
Key*ay

Stagger
Cutter

Side

Millins

Cutters

Angular
Face

Mills

Saws

up to

Saws

between

and

16" diaheter

Form

Millins

Crltter

up to

c;tteas

Tooth

cuiGs

;;

8"

a"

O.D. and corners,

O.D. and

corners,

O.D. only

o.D. a"d;.n;s.

O.D. and corners.

Angle Tooth up

8"

maximum O.D.

to 45o

O.D. and comers of

teeth,

but not face.

O.D.,

corners, and

C"tl"t"
No

operations

Grinding lace

All operations
All operatjons

with Unihead

position,

O.D. and corners. In

zontal position,

mum O.D., face

Crinding lace

ln vertical

12"

and corners

maximum,

7"

hori-

maxi

14

L7

l6

23

ZO

2t

22

2?

30

3l

33
29

10

l1

10

Taps

R""-"."

GENERAL

The

cleaned

sidered

box can

not

can

fo_r

adapters
Catalog

this instruction

to parts

incorporated

and replace

Pa.t

dle housing

with its straight

See

can now
tishtened with

attachment

of

pack;ng

all

The packing

so

thaa il

readily

in use.

Tf

be builr which

the

wheels, guards.

or attachments,

+24,955,

The part

number

draw;ng

in this instruction

Remove

the surface grinder

with

No.

SCG-156. Bolt the guard support to the

through the counter bored holes plovided,

Figure

2. The cup wheel or dish wheel guard

placed

be

thumb screw.

Grindins flutes
GrindinE clearance

O.D.,

Iace of teeth.

only

on

INSTRUCTIONS

UNPACKING AND

should

of

this unit has

care is taken in

be used

it is desired.

etc.

she€t can

and replacement parts

be carefullv unpacked

sreas€

been carefulty

unpackint-

as a storase

an inexDensive

will

cutter

provide

also

st;p assembty

such

aa the Detra

or item number

identified

be

sheet.

place

when

srorage space

a-nd oiher

referred

by ref€rrins

list which

WHEEL GUARDS

wheel guald

th€ sp€cial

iinished sides towards the

on the pin of the claop link and

guard

support, Item

G.ind

point

Sam€ operations

FOR MOUNTING

SETTING

and

con-

it, rhe

it is

cabinet

Unihead.

to in

ar;

assembly

52,

spin-

bottom.

flutes,

and

spiral

24
25
26

THE ATTACHMENTS

UP

Item

a:readv ir

l:ey

Item

sembled
engage
)oosened.

50, Part

p'a.e

slot of the grinder

51. Part

to the pilot plat€

thc

Tool

after

Grinder trol"
ihe pilot plug

First

motrnt

proximately

clamp

of the

same

sFcurely ro

pilot

plate graduations

PILOT

No.

in the

aCG-]59,

and Cutter

assehbly. permir

to

swivel 45" in eirher

betwe€n

the

in

the center

PLATE

SCG-185. l,'tone

pi

ot

tabla and hold

1,,"

in the elongated

the pilot plate

pilot

plat€

thF rable with

plare.

Thes€-slide

Ione

the

T-bolis ari as-

into the

pilot

slot. These

T-bolts are

crinder table and when

rhe Tool and

Cutter

direction about

and the tabl€.

with its T-bolts

of the

towards

srinder

table and

the ,ero mark

th€ operator.

plate.

ap-

tail

stock in place

erate.

this.
T-slot

perfect

be sure ro

all plav wh,ch

is

eliminated. and the

alignment with

with the T bolt when ready to op-

drdw rro rhe hand kroL. Ly

nny'exix bcrween

centers

each other.

the ley anI

a.e

brousht into

doing

FINE ADJUSTMENT

Also mount

Figure

3

right side.

Iine

adjusrment

vided,

one

(A)

the 6ne

in the T-slot

a d lock in

screw,

at lront and

placc

{FlGURE

Figure

one at rear of the

TABLE

Place

engaging
index plate

Lock the

The

The

holes

so it coincides with

table in

table can

table

3(B). for fine
ment. They

the table

Arinder

an

table.

can be swung downward to

table. The fin€

angle ol

14o

When

the upper table can

45' in

of

eithe. direction.

ov€r the

in the table

position

be swiveled up to 4s'to

is equipped with two

adjustment of the

engage the stop

adjustment car be

to either side oI the

gr€ater

angles

then

HEAD AND TAIL

The head stock

(B) (moveable center)

stock

as shown

in Fisure

(A) (stationary

Before tishtenins the head or

4.

STOP

adiusrment stop

of the

srinaer

with

3)

3

set screw.

(B).

pilot plat€

and arranse the mark on

mark

0o

w;th

the hexaton nuts.

assembly.

iaUte, to ttie

in

holes

rabte.

with T-bolts

pilot plat€.

of

eith;r side ol

screws, Figure

table swiv€l move-

already fastened to the

used

center line of the

are required, the stop

clear the upper table. and

be

swiveled its maximum

STOCI{

center) and tail

mounted

are

on the table

Turn

pro-

up to

further

A

that

the center parts

other

and

center is

When grinding

can

be set to a

cap screw.

when grinding

FINAL

B€ sure

up and that

When usrng

grinding,

ter

the table

in gibs and

For delailed

enclosed ;nsrruction

Maintenance

Crind€rs."

IT is very

always perpendicula.

rected

The very

ground

dionerer

should th€n be placed
clamping

flanges with the Indicator

point

and then rotating the

in

be

a

advantage

ol the head and tail

are interchangeable with each

can easily b€ changed so

on the left side if

small cutters, the moveable center

perfect

It

is advisable to lock this €enter tightly

large

desired.

sliding fit by mea:ls of the front

heavy

and

cutters-

CHECK PRIOR TO

that all end

play

in the spindle is taken

the moveable

that

GRINDING

the column flanse and base index marks

the Surface

is

it

also of major imponance io

and cross slide and remove

ways by taking up set screws.

instructions

sheer PM-lbl2

lnstrucrions

crrnder

covering lhr above. see

Ior Toolmaker Surlace

Io, rool

all excess

"OperatinE

importort rhar the table movement is

to the spindle. This

as follows-

best method is

ba.

about 9" or I0" long and ot ,rre some

to obtain a centered and

throllrtout its edire lergtfi.

Indicator

an

position

to contact the

between the centers and by

betwecn the wheel adapter

contacting the bar at one

spindle

lE0o

bar at

until

another point

stock

and cur-

check

be cor,

can

This bar

it would

play

and

at the opposite point of the arc. any error existing

will

be

obvious.

rect any error so that the Indicator contacts the bar

both

points.

at

b€ adjusted to coincide with the

pilot plate.

After the table is swiveled to cor-

index plate marked item 43. can

the

A secondary

method is to use the table

zero mark on the

is

T-slot in place

with

flanges

on

Indicator

an

of

indicator swing into line with th€ edge oI

ol the bar between cent€rs,

edge clamped b€tween

letting ends of the

WHEELS

sheel

GRINDING

or straight

adapter, and

There is no fixed set of rules that can

dorvn governing the selection of a

ard we

charact€ristics

ing

give

no absolute instructions here.

the materials to b€

of

conditions that are to be fulfrlled

into consideration in sel€cting the

wheel

cutting

to use. A

wheel, being of a

too Gne-never

It

is alwavs safer to use a soft

cutters are eisily ruined by using

too hard for the

cutting edge and spoils

good rule to follow

medium soft

finer

job.

than 60

grit.

Too hard a wheel burns

the tool. Balanced

grinding wheel.

ground and vary-

must be taken

proper grinding

is

grade

wheel. Tools and

a

trinding

should always be specified.

ALWAYS DRESS A WHEEL BEFORE

GRINDING

We have

standardized

a standard type t1 cup wheel,

standard
carried

pose wh€€ls for grinding high speed

but

wheel,
represenrarive
order to obtain the

type I2

in stock.

in

order to obtain the

we sugg€st that

dish wheel, 6" diameter-which

The wheels ofier€d

ol some

rrroper

on two types

4" diameter and

are general

steel cutters. etc..

greatest efficiency

the custom€r contact

reliable abrasive

wheel lor

his purpose.

and check

be laid

Difierent

to use

a fr€e

and

wheel

wheels

of whe€ls-

from

the local

company

bar

th€

ftot

the

are

pur-

tn

The

is obtain€d

clearance of the

by setting

below the center of the

rest

tooth

tooth being

tooth

The

should be set

ground

rest

should

ansle of clea.ance

ol the cutters and

than for
plain

large

milling cutteis

ior finishing- cutters and 5

cutters

ovei

3

Ior those under 3

Excessive ci€arancc

ing, and the teeth become

Cutters may b3 divided

The 6rst is sharpened

Ldee so

a

a

rhat

CLEARANCE

teeth back of the

end of the iooth

cutter.

up square to the

as shown

always bear

depends

must be

ones.

inches

rhe

The cl€arance

should be

in

diameter,

inches in diameter.

causes chattering

on the

cl;arance

The po5ition of

in

Figure 7

against the

upon the

greater

froo 4

degrees

to 7

aDd 6

quickiy.

dull

into two

l,ack of the

i,

Produced

cutting

rest above

face of

tooth that

lor small

on the

to

5

for roughing

to 7

when mill'

classes:

bt

edge

or

the
the

the

and

is

diameter

cutters

te€th of

d€grees
degrees

cutting

srindint.

DIRECTION

The

edge. as shown

salest

way

ROTATION

OF

to run the wh€el otr

is

iu Figure

ior by

5.

direction there is no dange. of the
aivay

lrom the tooth r€st by tbe

A keener

cutting

edge can be obtained

the wheel onto the cutting €dge.

6. but

the tooth

in

this m€thod the cutter

rest as the

the tooth away.

action of the

This

must be held aeainst

method

WHEEL

01'

the cuttine

running in this

work being drawn

action of the wheel.

by running

as shown

wheel tends to force

in

Figure

requires a skillfu)

CUPPI,]D WHI'EL CLEARANC!]'TAtsLF]

oI

Angl.

,065

.lo9

.217

.260

t3

.311

.391

.434 .520
.475 572
.52t

.608 .724

.214

.3

.343
.343
.418

,452

.147

.651 .780

.551 .695 .432

L

,;

.0c9

'l

i.ot?

t,o

',,oz-,

l 035

rYa

,/L

rY4

.oor

2

7

.caz

rs

122 ,;;; ,;; .30.1

.140

I

,209

1.227

i.244

.262

2y2

3

3/.

4
4!" l.rs7
s .nl

6

61
7/,

''B for

.087
.109

,131

_153

105

.131
.r57 .133

,209

.196 .235
.24A 2A7

-261

.314

,2g3 .340

,305 .366
,327 .3s2

Cleara.ce

,152

-305
.335
.366

.427

.qiz

.017 .o22

.035 .043

.a52
.o7o .087

rs7

.104 .130
.122 .t52

.t3q
.t74 ,260

t20

.026

.0,2

.0?8

.130
.156

.142

.2aa

312

.36,1

,468

.621

and

ihe

,r8

rhe edte

rhe

latter

relieving

Thc

strarghr

lace

cutters,

ond

class rhtre

and

such

rooth

The face

ters

of the first

,claiion

in

conracl.

that

this relarion

iagle.

cutters

se_cond

is sharpened

io

class.

preserve

the clearance

or backing

6rs(

class

or

spiral

ree(h and

reamers

are raps.

as are

of a cup rvhecl

of

lt

wheel

rs

importanr

class.

rhe

will

A dish wheel
of the

second class.

on

the shape

ofl

rn the process

consists

of

antular

and end mitls.

Iorm cutrers, gear

sharpened

is used

The ctearance

and the

that the machine

produce

iir most

ca.es is used to

the Iront face. produc-

of the

ha;

been produced

paratlet

todth. In

of-manutacrui-

currers

with

cuiter. side mils,

ln the sec-

cutrers.

on the face

to sharpen

is formeit bv the

toorh with which'it is

clearance

oI the correct

of thc

cuF

be so set

sharpen

by

ty

The

graph
primary

ro I

ilue

creas(
occurs

correct.width

ondary

ing

_a:1gle

above,

clearance

The

normal land

16 dep.

to repeated

,n wrdth.

it is

This

is reletred

cl€arance

on the

SECONDARY

of

clearance

can theor€ticallv

angle

ot

nd,n8

a cutter may vary

on the size and

grinding.

causing interterence

thai necessary

by_grinding

rn

F rgure

E.

h"ro&r-mio

K-

CLEARANCE

to

rn later paragraphs.

rngle varies

type oI

cutrer used and

CLEARA

as outtin€d in

be considered a; the

"A"-Fig.

8.

tlpe oi cutter, but

rhe land will

at D. WheD this

to reduce

a secondary

CLEARANOE

SEOONDARY

ANGLE

from

60 to 15" depend

NCE

the para-

lrom I

graduatty in-

the land to the

clearanc€ Antle

ANCLE

The sec-

material Leine

32

RELATION

The

r€lation of

shown

done with

DependinS
rhe

vary

up. as shown

on

in Figs-

the outer

on the

back edge,

frod

I

in Figure 10.loos€n

top oI the colurnn

OF WHEEL TO

the wheel

s or

and

6

10. The

edge of the whe€I,

setup. it may

and the amounr

to 3 degrees.

and swivel

CUTTER EDGE

to the cutter shoutd

s.indins

be eirher the front

of clearance angle

should be

not the full face.

In ord€r to make

the larg€ hexagon

the complete column

be as

or

can

the set,

nut

l-

In general.

cast

iron

Wher g.inding

or spi.al
position

the

tos

The

ihe

thus causing

inally.

teeth.

reratrve

toorh'rcsr

of

the

tooth being

tooth-rest

so that the

is ground

throughour

relative ro the wheel

the

wheel

before it reaches the whe€1.

travers€d past

straight fluted

ly

on the table

for alloy

10o. aluminum

POSITION

the tooth,rest

to the

asscmbly

[uard

to

support

ground

and will

the

cutter to turn

a uniform distance

its length.

st€el it is

and brass 13".

OF TOOTH,REST

a cylindrical

grrndins

should

will be hetd

then slide

edge oI the

When

it should

face.

so that the

the wheel face.

cutter. the tooth-rest is mounted
in

a fired

position

mild

6",

cutter having helical

should remain

uheel.

be iasrened

bracket.

See

Figure

tn this case,

to the bot-

by hind

over'rhe tooth'-rest-

as it moves longitud-

spiral or helical-tooth

from the

rhe too(h-rest is fixed

be somewhal wider

cutter will have

and also after it has

When

relative

srindins

to the cutter.

steel 8",

i;

fixed

a

(C).

9

against

ceDter.

than

a support

been

direct,

and spindle

to

securely

(l

16" between

gives

The

the

column

and the

To give

a spiral

various

in

detail, and therefor€ seem rather

a

actual setup requires

1.

Mount the cup wheel

wheel.

assembly

tithten

approximat€ly

lace

of the wheel is parallcl

and column

wheel should

to the desired

the nut after adjuslment is

index

marks on

lo at face of wheel).

flanpe index marks

be dressed while i.

GRINDING A SPIRAL

(Fig.

tt

and l2)

the operator

mill for grinding.

s(ages. step by step These

a cleai

qe

only a short time.

on th€

Swivel the spindle

ansle. beins sure

colunrn and base

to the table when

coincide,

position.

this

MILL

picture

will

in setting up

go

through the

steps are

long. but the

spindle

assembly

and dress

%

made.

t,ven

to 3

degrees as shown

assembly to under side of

2. BeIore setting up the tooth-rest

height,

check with

iable (Pase

inches to set end of tooth'rest b€low c€nt€r

cutter,

of head

gage to this dimension.

subtract

and

to this height close to

using the
Figure 9.

plain

in Fig. 10. Mounting

guard bracket.

the cupped

this

amount

find the B

high

a) rnd

tail stock). set

Now set the

the edge of

round stop

Then lock spindle

fror 5.250

finger

assembly.

tooth'rest

to its

wheel clearance

distance

gage

or

tooth_rest

the wheel

shown in

as

proper

in

ot

(height

surface

3. Clamp the head

ing

to the

4. Press the cutter on

mandrel betw€€, centers.

5. Grind the cutter

and tail srock

length o[ the

the mandrel

guiding

caoirst trre toori-rect,

Afler grinding the cu ing

curter ;irh a micrometer to see that
eround

ilearanci,. using

An alt€rnate

is to set up a dull cutter

angle wnLout using

height

parallel.

m€thod oft€n

gage.

Reset and

the same method

the clearance

in

arbor or

trte cotler

i, ,ecesscty.

(learance.

Rrind

used by an

to;ts

position accord-

mandrel.

place th€

and

by

(Fig 6)

tesr

it has

the secondary

as outlined

op€rator

previous

clearance

table

iond

the

been

or the

In cases where the teeth of a cutter

very closely,

grinding is

as shown in Figure 13.

done with

GRINDING A SPIRAL OR A SHELL

The

same

spiral or

shell

ins a spiral milling cutter.

seiups iequired, howeve!, the

of th€ teeth and

After grinding

ably b€tween cent€.s.

for

srindins

setup should be made

the

practice is carried out when

end mill

the

the upper edg€ of

Fig. 14 and ls as

There are two

sharpening of

the corners.

periphery

the

ploceed as follows

lace of the teeth.

the teeth.

of

Fig. 17.

ar€ spaced

so that the

the cup whe€t

END MILL

grinding a

grind

when

additional

the lace

prefer-

to setup

l.Place

cutter in the

2. Fasten

swiv€l

shown in Figure 10.

3. Clamp the tooth.resr

for when clamped
cutter

the tooth-rest.

against the under

the Unihead on th€ table.

Unihead.

cup wheel
spindte assembly

to the spindle.

l/z

prelerably

to the table the

changed without

cannot

be

Place the blade of

side of the tooth

Fig. 16.

4- Swivel the cutter downward

clamp in

ance angle

and

position.

to 3

lhe Unihead,

on

anSle ol

readjusting

the tooth_rest

to be

to the desired

the

ground,

cl€at-

5. Lower

one being ground
head

swivelled

low

grnc.

th€ wheel

Unihead

rsee

sli8hrly

in the

center oI the

so that the

will

clear

in.rtuctions, paSe

prind

to

tooth next

the wheel. The

the teerh.O0l

cutter to prevent

to the

Uni-

lj) may

to.002

drag-

be

6. Proceed

ance

and

outlined

Unihead

by the

As much

corne-rs

the face

edges

finish

will

will be the result

to grind.

g.ind.

above.

in

the horizonral

Sraduations

care

Reset lor

usinR rhe

To

erind

on the bases.

should Le uscd when

of th€ reeth,

or periphery.

rapidly.

dull

the secondary

same

the corneis.

plane

FiB. 18.

as when grindiot

otherwrse

w;ll , hattcr.

procedure

swivel ihe

a5o

ro

grinding

the

and a

ctear-

as

rs shown

rhe

cuttinE

pooi

{>

t

(0

GRINDING

Figure

milling

as well.as

the periphery

the

up

19 shows

cutter.

that is,

the periphery

ol

Unihead Ior grinding

SIDE

the

same

manner

SHELL END

the

teerh. Tn

ground

1re

follov

lined

this, the cutting

can be r€duced

again the same procedure

for grinding

This

type of

cases where

on a 45o angle

IFIOURE I3)

A SIDE

(Fisute

the teeth in

20, 2r and

principal

the

oni

of

MILLING

22)

which
the

elements

cuts

(eeth.

the reSutar

one side

I

MILLING

(FIGURE

as described

MILLS,

rhen

CUTTER

I9)

under

srind

th; corners

as shown

corners

cutter often thatters.

clearance

to as low,

of a spirat

on the sides of

as 1 desree. In

as previouity

CUTTER

of

with

the sides

Afrer grinding

manner, set

of the teeth in

GRINDING

rhe orher

ot

the teeth

side ot

in Figure

end m;ti.

To

ovetcome

the teeth

addition,

a side

18,

out-

the

cutter

th€ width "O"

19.

about

can be slightly "hollow'

To

accomplish

ti

to

is made less at "Y" than

this result. swivel

Z

degree

when grinding the

ground,

at "X". Figure

that

the Unihead

sides.

is,

GRINDING A

A

stagger tooth cutter. Figure 23.

STAGGER TOOTH

CUTTER

is one which

altemate side rake in opposite direction,

teeth

vhos€

cutting

edge is about

half the width

has

and with

of

the cut.

to thos€ on a

19.

but it

similar

The side cutting edge of

side milling cutter, as shown

The

is

cutter

to

has right and left

ground

grinding

The setup is

The

mill.

the t€eth can

alternat€ dght and

round

Blide over the blade

one setting. the

on

a spiral cutter-

of

practically

the

top tooth-rest

left hand spiral.

the teeth is s:t1ila:

in Figurc

hand spiral t€eth,

operations being

samc as for a

blad€ is used, so

regardless cf

spiral

that

thc

GRINDING

Figures 24 and 25

i:rg

the angle

A STRAIGHT

REAMER

of cl€arance

WITH A CUP

illustrate the

of the teeth. A standard
operation.

Th€ tooth-reEt

1'OOTHED

WHEEL

back of

wheel

cup

mountcd on

is

MACHINE

method

ol grind-

the cutting

is used

for this

the table

edge

t

because

to

should

rest

the r€amer

th€ centers throughout

keep rhe reamer

exerting

by

a rotating pressure

(rtcuRE

teeth must

their

in 6rm

rl)

atwavs remain parallel

tengih. rhe

contict with

on

the tooth-

its

shank.

oberator

CRINDING

The

same

reamer

can be

IFIOURE

A TAPER

CUTTER

procedure

followed for

26)

REAMER

as used for grinding

sharpening a taper

ANGULAR

OR

straight

a

reamer,

Fig.26. except

when

rers.

Fieurr 20.

that thiansle

check-up

the table is set

sharFcn,ne a

wiih

is checked

is npcessdry as the

ly when the rooth

iap.ted reamer

wheel. care should

cuP

a

aft€r taking

ansle

ro be ground

at the

requ:red angle

in between cen_

be taken

a trial cut.

will change slight-

is set below

This

center

iieved cutters. The

foltowing steps should

in making the setup-

1. Mount

wheel on spindle.

2. Set the table on

Dress the wheel.

3.

4.

Check by

of

stock centers or

readjust index

5. Place the cutter

ters and mount the tooth-rest

cutter tooth.

6. Proceed

whe€l

the dish

placing a straight

the wheel,

grind by

to

by traversing

Zero.

and Iine up

T-slot in table

plat€

with its mandrel

wheel

guard and mount

edge across

with the head

on swivel

on the

passing across the

th€ table

by hand.

be followed

dish

the face

and tail

and, ii necessary

table.

betw€en cen-

back of the

grinding

I

I

a

to obtain the

necessary clearance

angl€ as shown

Figure 28-A.

The best way to

shown
exactly on thi cenrer.

will

in Fiq. 27.

be

sround

to the angle shown

of the Unihead or

to proper currer angle

then obtained by tiltiDq the Unihead.

GRINDING

Ilre

cutter,

the

same. sinc€

Figure 29, a d grinding a

for gr;nding a radial tooth

setup

grind an angular

Here the tooth rest should

rFigure 28B). so that

by the

the table. The

and the angle oi

tabte should be set

A FCRM CUTTER

tap are essentially

they are both straight

cutter is as

be s€t

th€

cutter

graduations

clearance

form milling

tooth, form

in

re-

GRINDING SMALL

DIAMETER

METAL

CUTTING SA\/vS

Metal

ground

cutting saws

with the standard

The saw is h€]d on

head and tail stock

is the same as

an ordinary cutter. Use

is

a saw, lower the spindle

previously outlin€d

tooth next to the one

of the wh€€l as shown

of 8" diarb€ter

equipment.

ai arbor

centers. The method

a cup uheel

assembly

ground

being

in Figure 30.

or less may be

placed

between

of grinding

for sharpening of

grinding

when

far enough for

clear the top

to

the

the

IMPORTANT-It

that saw blades ar€

milling

rnanner. A car€ful

shape and a

shoutd

l0

cutters

be

made

(FIGURE

should b€ noted

in the same category

should be

and

rubbing or tracing

r€cord oI the

when the saw

3O)

treated in the

rake and

is new

at this

as

ol the

clearance angles

so that

point

high grade

same

tooth

when

I

lesharpening

angles are exactly
impossible

there

are

blade

used and the manufacturer's specifications.

it

th€ tooth shape,

the

give

to

many

complete data on these factors since

variations depending on the type of

same

as

rak€

in

a new saw.

GRINDING LARGE DIAMETER METAL

SAWS

grinding

16/' in

of a metal cutting

Figuie

saw mounted

over

31 shows the

in diameter and up to

8"

CUTTING

in the Unihead- With this setup, saws

and clearance

It is

diameter may

5. Adjust the

grinding

If

6.

saw is too large to grind with table in normal

position,

will clear

7.Set the bevel protractor

the

saw

was previously

cl€araDce ansle

wheel

and clamp into position.

swivet the table enough until the saw

the moto. as shown

to a convenient

in Figure

to 88' and

with

one edge on the center

t2

d€grees.)

(This

setting

drawn.

of

height for

31.

place it on

line which

give

will

8.Now turn the saw until the other edge of the

protractor

Lock

is parallel lvith

the

the Unihead sl€eve from

face oi the whe€1.

rotating in

this

a

L

bc ground. The saw

aad ciamped in place

The

s€tup is very simpl€ and is

is centered on a special aiaptor

large

with

washerc.

outlined as fol-

9. Clamp

10.

Unlock

In addition,

should

being

wheel,

will keep

ting

rest parts

be

g.ound,

as

a better

illustrated

the saw froo vibrating and will help in

tooth-rest

the

Unihead sleeve a d

the

to tbe

on large narrow saws, a support

placed

fasten€d to table can

under th€ saw, close to the tooth

to tak€

grindirg

downward

the

X in Figure

at

job.

Figure

table

as shown.

proceed

pressure

This

31.

shows how tooth

3l

provide

such a sup-

grind.

to

of

support

the

get-

GRINDING ALTERNATE BEVELED TOOTH

SAW

The

grinding

shown in Fisure

of an alternaie beveled tooth saw

33.

is

1.For cutting the

wheel

.

LETS or sharpening the front of the tooth, use

a dish

to

conform

in Figure

2.

Clamp the Unihead to the

3. Draw

4. Clamp the sav, on the Unihead

thumb screw firm enough to rotate by

the spindle.

on

wheel, dr€ssing the wheel with a

32.

line across the saw through the center.

a

clearance angle. mount a cup

grinding

For

with the shape of th€ gullet

tabl€.

and tighten

the

diamond

as shown

hand.

GUL-

A

dish or cupwheel can be used for this operation.

Swivel the
for

the

tooth. To

side, reset Unihead to the same opposire angle and

proceed

Unihead to the desired angle

bevel

and lock Unih€ad. Grind €very second

grind

the alternate tooth on th€ opposite

as before.

tl

required

aol

lt

6

L

L

rt

J

I

sP-209

2*

sco-173,s

scG,l74-s

NSS,274

5

scG-r76

6

sco-r77

scG-r78

7

I

sP-203

9

sP-229

10

scc-r83

I1

scG-182

12

scG-r79

13

DDL.T23

1,r

scG-l3t

15

SCG.ITT

l6

sco-r72

t7

sPJ207

t8

sP-r605

19

scG-170

20

scG-180

21

sco,l52

22

cBL,453

23

scG-105

24

scG,66

25

sP'224

2i

sP-710

27

scG-r60

2A

scc,l6t

LBS-177,A

29

30+

scG-r88,s

3tt

scc-ls0-s

32

sP,24a6

oiDcR aY r^ir

TOOL AND

rs

l6\.ix

I-,{rs Ann

slrl) Ann A.!Jnt)tl

t:i ?r\ls lr'g ll,i r...... ..

CUTTER GRINDER ATTACHMENT

S,,.l,rr Hca{lIss

Assrnrl)ll .. . . .. . . .

-\ci

SI(v( ....

linu.lr(t \ul

.\(ljn\ial)lt

tj 20\'r,i

,1

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Lhnrl' I{ifls ..

r*

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H,,tn.r

T-lrl,ll

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sn,r,

S!'.l,irt Il.adlr:\

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' '!j

(.ap

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S...

S.t Sc,

s(l sc.

xuxBEi rior usl Do ror oiDER B, n

REPLACEMENT PARTS

33 SCG-169

3,{

SCO-166

35

SCG-16?

36

SPl001

37

SP-160/+

38

SCG-163

39 SCG-162
40 DAC-120

41

SCG,I65

42

SCG-I64

43 SCG-103

44

SCO-r13

.r5

sP,567

!6*

SCG-187-S

47

SCG-85

4a sP-2252
50

scc-185

5l

scc,l59

52 SCG-156
53

SP-1527

s4

scc-153

55

SCG-r5rt

56

SCG-155

57+ SCG-Is7,S

53

SCG-168

59 SCG-l5t

60 sP-1231

Catatos

#153+

Srrin{

#a

Sr,,r, llar r l Bl,,.k ]\:icnrIl\ ..

|

......,.............-..

il2\l':

Il,{rn,l lld. lla.h.sc.rs.

-lr,

r r i.l\I, L'

s

NOTE|

anc. vala.s

Prices in this list apply only to

iI a machin.

is o.der.d

parts

"l.sJ'

ord.r.d for rcpair

..rtai.

parts,

and

r.ptac.mcnt. Thcy tannot b. used lo. computing allow-

l2

SERIES

DATE : 9-r

REPLACESI

|NDEX 120.5-f

-tl

OPERATING AND MAINTENANCE

NONE

THE DELTA MFG. CO.. MILWAUXEE

D.he Mrg.

co.. 1913

For the Delta Unihead

I. \f,Is.

INSTRUCTIONS

24

GRINDERS

l3

THE DELTA UNIHEAD

INTRODUCTION

The Delta

work

h€ad. designed for

Toolmaker
us€ful on other makes

D€lta #24-970 Tooth

in

connection with it.

This head

ranged with a +9 Browne
curately

for-life

mounted in

ball bearings that need no further

Another

index

stop colla. and

be set in any position

the operator.

collar

automatically
equal spaces.

plate)

ings

or

with selector plate.

are

and

Catalog lor list

Additional

rang€d

tighdy
to

out.

%-13

at the back of

fitted

the unit, resulting

This Push-out

cap screw, provided

required.

the Iront

hold

the sleev€ while

Cap Screw

Ample provision

Stop

Unit. The swivel

graduations

is fu{nished

in addition,

similar

alog i24-9oz). Th€ base is

engage

can easily be changed iI this head is

makes

to those

the table and these keys are reoovable

of machines.

It should

used directly on

a limited number of setups its

reached wh€n

of

direction. which. when combined
Unihead is otrset and can be rev€rsed on the table, pro­vides

lent of a 16" diameter

that

screw when properly set. will remove all

Tool

th€

+24'952.

th€ operator with a range which is the

ADJUSTABLE

The indexing dog is held

be

can

The dog hold€r is slotted

Unihead

Cutter Grinder,

consists of a

feature of this work head is

is a universally adjustable

in connection with the

use

it will

machines,

of

Stop Unit

pre-loaded,

dog that can be disengaged

also be

€specially

(Figure

heat

tr€ated sleeve. ar-

Sharpe taper

&

sealed and lubricated-

which is most

It is equipped with

which

engag€ either 2,

Other

available which provide

can be ordered

features include

adapters,

plain

collars

as required-see

of collars

the sleeve

thus avoiding possible

when

attempting to

Nut

is bored out

a 12 tooth index

permits

3, 4, 6, or 12 selected

(without

other

and sp€cifications.

push-out

a

for

for drawing in

The sleeve is

ior which

also arranAed

a wrench is supplied

the Push-out

Nut or Draw,in

is being turned.

is

made for applying

bracket is arrang€d

and although only one

with the head.

Ior obtaining

obtainable on the Delta Univis€

be noted that although this head

Delta

the

is possible

it

certain compound angles

arranged with k€ys that

Surface Grinder table for

of these swivels

maximum utility is

us€d in connection

and Cutter

Grinding

with

Attachment,

This tabl€ can b€ swiveled to

with the fact that th€

saw blade.

AND DOG

in

an adjustabl€ bracket

so the adjusting

clamped

COLLAR

in any convenient

through,

found very

i{

1) is used

and ac-

attention.

the adjustable

convenient to

the dog to

selector

equal spac,

parts

Nut ar-

pushing

dahage

drive them

to receive the

adapters as

with a flat at

in orde. to

the Tooth

with

to use another.

(Cat,

so they

used on other

can be

th€ swivel

position.

45'

play.

table

Catalog

in

equiva-

thus

the

List

out

360

any

or

providing

INDEX

The

plate is

spaces

with

th€ collar

only

needed,

If

our

that these

accurate engagement of the dog in

COLLAR \vTTH SELECTOR

Index Collar

marked 2, 3, 4, and 6. When

are requiredi merely lock the

has

12 teeth

and the selector

selector marked

the number requiled in line with any

and the dog

ensasc the desiied

the selector

other indexing collars are ordered

Catalog,

Nos.24-957 to 24-965,

not ofrered with the selector

are

will slide over the

notches. Il l2 spaces

plate

must be

re6ov€d.

it will be noted

it is therefore necessary that the desired

marked

and the dog engaged in the

with chalk or in some

other manner as desired

marked spaces accordingly.

the index

PLATE

any oI these

tooth on

outside and

are

as ofiered

plate, and

spacing be

PUSH OUT NUT

The

a sleeve nut

adapter which is seated

ol the sieeve is arranged

of the

back

Unihe3d

which, when turned, will

tightiy in the taper.

tapei sleeve

with ffats and can be

with wrench furnished, while turning

IMPORTANT:

odcpters 6e dtiven o,Ltt with hc,,,rnet

sin.e

trh

For ri,,Iircr reorors, lie dog lrtould

goged

P',sh

in ,ie inder

Out

After adapter is

enough so

surely seat itseu

The

Push-out Nut is bored out. and a

screw and washer are provided Ior drav/ing
€rs are generally draw in when heavy worL is

ed on
erted

the Unihcad

during the

Under no.i|'cul,,slcrces

mdy dd,noge beorirgr and

pldre

r,t it being t',rred.

out, tura

when

that

flrli

the

used t6 hord sreeve, wlrire

or

back Push-out Nut

adapter is applied it will

next

o{

depth

the

or when excessive prcssure

various

ope.ations

is fitt€d with

force out any

The front

held

out-

slor,d

ot drive

lhe

Pin

.uin occ,,rdcy

,ever be eD-

far

taper.

%'rl3

Cap

in. Adapt-

mount-

is

ex-

performed on this

Il the Draw in Screw is used. the adapter should

be seated by hand, the Push-out Nut turned in until

just

it

out

end of

end
depth.

in

scew.

attached to the swivels are set correctly at the

touches the end of the adapter and

3 or 4 threads. By

following

this

the Push-out Nut will not interfere with the

of the adaprer

Care should be exercised in tightening the Dra\?

Screw, to avoid stripping the

the adapter, or the Push-out Nut.

SWIVEL

The small stampings arranged

when

it t drawn to the maximum

threads

INDEX MARKS

with the index mark

If, fo! any reason. they become out of adjustment,

then backed

procedure,

oI either the

factory.

the

it is

in

an easy

and

matter ior the operator

r€set the

index marks by

means of the two

TOOTH STOP

The work head uses the same

regulaily

furnished

with the Tool

Attachment. Cataiog +24-95?.

to be used on another

advisable to obtain

(Figure

head

on

A

%"

1). A

which the tooth stop bracket

hole is

pad

also

make o{

the +-24-970

provided at front of the

is

provided

for application

to square up the

screws

UNIT

tooth stop unit

and Cutter Grind€r

lf the work

machine. it may

head is

Tooth Stop unit

can be applied

of tooth

head

as is

b€

work

given for the customers'

ar€

proper

the

Dettd does not

tict

or.ongellrents

pl,!

ltel,,. |o Derla deoleB.

for the

one

wilrl lr,e tn!rutocluret

convenience

job,

and it .iourd

&eep lrrern it

in selecting

be rrderdood

tlocl nor

,o,,ted, to 5l,P'

it. mode

ADAPTERS

The

sleeve

will

receive

tane. No

unit. For

ADAPTERS

is arranged

any s!1ch taper

adapters or collets are

further inforrnation on adapters

FOR DELTA UNIHEAD

The Delta Unihead

less number of

ious

types and

combinations

mak€s of adapters.

shank. Listed below

types.

Although ther€

TYPE

AND COLLETS

with a

lends itself to an almost

+9

B. & S.

ends lvith or without

furnished with

through the use

with a No. 9 B. & S.

ar€ a

few oI the most useful

are many

others, these

taper and

or collets

DESCRIPTION

#9 B. & S. OLrtside

with tbreaded €.d

chuck or Delta

#9 B. & S.

with #33

Jacobs

Z" Jacobs

a

this

end-

of var-

few

taper arranged

to receive

#937 6" face

3

plat€.

outside taper arranged

taper €nd to take

chuck.

jaw

REMARKS

This rs thc only Adapr€r
nish.d by D.lta Mis, Co.

Cat.

+937-6"

Photo Pas. 18 lurnishcd by

3

Jawcd

18 NOT lu.nish.d

This

is the only

furnished

Fac. Plate

as shown in

Chuck

Delta MIg. Co.

by

oi this lypc

(C.t.

D.lta at this tim..

by

Adapter of this type

'24-968).

#24.967).

as shown

D.lta.

Photo Pagc

(Cat.

fur-

in

Gorton

and

nished

Machine Co.,

10 spring collets

Erickson

Steel Co.. Cleveland.

by Delta

tional information.

Racine

Wis. ofiers a

ranging

Manufacturing

B.

+9

taper can be

;2 Morse

+9 B.

mill arbors of

S. Outside

&

#5, +7.

Tapers.

S. Outside

&

various types. When

key is removabte,

be used

+9 B.

for holdins

outside taper Spring Col-

& S.

let with straight

compl€te

fIon

/s"

Ohio,

company,

1".

to

makes a set similar to

also

and above

taper. Inside

B.

& S. or

Styl€ 102 Scully

+1.

Brown

Drlta.

tap€r shell end

Scully

lent. NOT fuhished by D€lta.

these arbors can

saw blades, etc.

Brown

hole

s€t consisting of a

of

various

NOT furnished by

collet

This is known as their Set

the above. These sets are

manufacturers' catalogs

l5

Sharpe. NOT

&

Co. Style B or

Jones

Sharpe type or

&

chuck. with

tr703-2

should

be checked for addi-

Jones

Delta.

+9

or style

furnish€d by

equiva-

equivalent.

B.

S. shank

&

not fur-

+2

The followiDg photographs

setups which are most genelally

general

tool

idea

of what can be accomplished in

and cutter

srindins.

The titl€s

show the

Unihead

used. Th€y give a

everyday

notes

and

under

photographs,

the

given

throughout

complete

be adequate to s€t up th€ Unihead for

Tool and Cutter

together

the

with

instruction

Grinder

the instructions as

sheet covering the

Attachment, should

general purposes.

(toorh

soD mounr.d in * Hol.)

(Tooth

sr.p

mourr.d on

D.d)

Gindins corn4r or a i5' End lrilr

NOTE Table is set at

45"

16

to

gain

adequate capacity

crildrq a rDovds ) Ansda! cin.r

,,

rruax

Djr.)

inlen.d

rodh !.v

unihdd wnfi

t7

r'j,

lda

Jrrobs

.hu(k

pbE.

i!

v

unihhd

tith D.li

(€hu.k

.or rurnkh.d by

LUBRICATION

Unihead Sleeve Pre-sealed

Unihead Index

d"s

Tailstock

crr,

t2r-967

D.lta Mrg, co,

CHART FOR TOOL AND

SAE

j.v

chucr iu

at lhn tim.,)

oil

SAE 10

10

pr.c.

uniL.rd rh D.na

u*r!r ror rdufiins

clr

t937-5,,rac.

jiF

CUTTER GRINDING ATTACHMENT

M€thod

of

Fillins

S€aled for

attention is necessary

index plunser

Ball

Oil Cup Daily

pt:e

n

.Dd

6:iur.!,

lhe

AND UNIHEAD

Period of

Chaage

life. No

Daily

furth€r

Tooth

Stop dog SAE 10

Daily

IE

G-r

nI

L*

il*

.$8tr#*ft!iffi!.f3!|.*"

L

UNIHEAD_REPLACEMENT

I

SP-JI07 ,,

2 BS-257

I\l

I

\\'...1-r

H, \,'8.

3 SCG-230 Sr.. llextrsonNnr(Pu\1,,{r\nl)
4

SP 504

5 SCG-235 Selccl.r l'latc

li

20x.r,1

.

ll, ,,1

l.D

^

R,ruad H(1. \1..h.

'

I O Lr. I.l

"t.

.t\7

S.rL\

6 SCG-236 ll l-!!'th ln(l.x l)i\.
7 SBS-4O linrb

8 SP-229

9 SCG-227 lr..l,

lO

SCG-245

ll*

SCG-228-S

12

SP-755 i.'\', S,,..lrr

l3 SCG-225 H,a.r

14

sP-638

15

SP-209

16

SCG-246 rlrr.. P',,:

l7

SCG-231 n"x.i.s \,r.jr'.

l8 ND-87507

19

scc-229

NOTE:

'

visabl.

b.(aus.

Cat.
Cat.

Cat.

Cat.
Cat.

Cat.

to

of rh.

#949

#1521

+1s24

#24-95?
+24,958

#24-959

St

I

,rf

n1'l ll,d'.r'a.

If bcarirss

-r.lurn

pr.-load

lll"

,'i

,1.'1,,,rt,

l1 T,(,lrr n,r

J.l

,, .. ,. .. .. .. . . .. . .

r-.tn".

'

':n!

.x

".'rt',r

l6x[

k."s,

S,,,1.

llol,,-_ C

."',

.

H"\.

Socket

n..,.t

'l r

r.ri-(

,rt,.r.:,n\

Hca,t Scr Scre\..

.

& S,.,r" :t,,\,

'',,

rh. compl.re sl..v.

ot

Oren En,l

a..l

14

INDEX

j0

cqurl Spacr,

b.arinss and

Wren.l' ..... :

"

CI.s.(l Fnn\

COLLARS

lL r 2, ,1, 4, i-,,

l7 an(l ,ll

l,!,rl' n'r l, 11,

r"i

rhr

r.r

H(r.l

..

N..

bc r.Dia(.d it is

.sscmbti

!). 12, 18, ann

((tual

af,l J.l .(lual

. ..

i,.,ii

..

prcss

\\'r.nf1, l

sra.cs

.

a

n

I

ri

I

>

I

..

20r

21, DDL.5r.S l..a\

22
23

24
25

26 SCG-lol

27 DP-276

"r

28 SR 234

29
30 scc-105
3l SP-224 :"\,rll-..1
32 SP-226 8..,

33
34

*

to lhc lactory

ad-

fit on sl..va,

If. d.sir.d,

the

MISCELLANEOUS

Cat.

cat.
Cat

Cat,
Cat. +24-965 nlanL

NOTE:

PARTS

SCG-229-S

SCG-IO4

SCG-567 +0i2xrl I{!1. H(l Ma.,,inu

SCG-I13

SCG-103

SCG-I12

SCG 86

SP,225O

Sold o.ly

preJo.d.d

PARTS

as a unir.

hov.v.r,

#24-960

#24-96r

+24-962

#34-963

See Catalos for additional AdaDt.rs

Iln\n

#,

t)ltlc

Slce\.\ aril lie(ai..r Nut,

,r,l

Sru.

\\ra.lrer

lr',1,

. l'1,,'r

L,.

k \\, ,. r,, ,

\\

1.'

i

\, \.-i,

rl,\,".'r'

\,l

\arf(

',j

#{

ass.hbly SCG

3l'l.,,rh

rrluxl

3r) !"nrr n,r l.

ritual it,r.(

(,!)rh

2s

l. ro,)11, n)r 1.1 an,l

& Shnrr)c Sl..vr,.onr

\rir]r Ilall Bcarinss, Sfac.r

l

-i,.fn

.. ..........-.......

.

\..(r,,Ltr .. ..

9/64

1.)).

.

Jri

l'1,',

\'r'

.. ...

O.D,

,r'

,Jr'S,n\

.r',

I

a

I'lar.

lti\rr

rhe

compler.

unit can br r.plac.d witb

229-S,

l,r 2..1.8- lii. and.12

't)x...

(

,nlar

n.l,

6. 10, r5,

5.

'

7, l-1, irn 18 lqnaj

?n r{tu1l

r)n'

Sc,r,

l/1\1/32 .

\'

,l,L{

an{t .r)

!r,n.,

or

I
I

2

6

2
a
I

2

2

)

I
I

s

Acc.sso.i.s

NOTE:,Pric.s
anc.

valu.s

if a mdchine

in rhis.list

apply only ro

is o,dered "l.ss

pafts

ordcred Ior r.pair

(.rrain

pdru.

Jnd

,cplacrmenr. They

cannor b. us€d ror

(ompurins

allow-

J