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 |  موضوع: كتاب Automatic Screw Machines الأربعاء 14 ديسمبر 2022, 8:19 pm | |
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Automatic Screw Machines
A Treatise on the Construction, Design, and Operation of Automatic Screw
Machines and Their Tool Equipment
By
Douglas T. Hamilton
Associate Editor of Machinery
AUTHOR OF " AUTOMATIC SCREW MACHINE PRACTICE," " SHRAPNEL
SHELL MANUFACTURE," " MACHINE FORGING," " BOLT,
NUT, AND RIVET FORGING," ETC.
AND
FRANKLIN D. JONES
ASSOCIATE EDITOR OF MACHINERY
AUTHOR OF " TURNING AND BORING," " PLANING AND MILLING,"
GAGING TOOLS AND METHODS," ETC.
و المحتوى كما يلي :
CONTENTS
CHAPTER I
SCREW MACHINE CLASSIFICATION AND
DEVELOPMENT PAGES
Origin of the Term "Screw Machine" Distinction
between Automatic and Semi-automatic Machines General Features of Automatic Screw Machines . Classification
of Automatic Screw Machines Development of Singleand Multiple-spindle Types General Application of Automatic Screw Machines Advantages of Single- and Multiple-spindle Designs i-io
CHAPTER II
SINGLE-SPINDLE AUTOMATIC SCREW MACHINES
Brown & Sharpe Automatic Screw Machine Cleveland Automatic Screw Machine Gridley Single-spindle
Automatic Turret Lathe Chicago Automatic Screw
Machine 11-38
CHAPTER III
MULTIPLE-SPINDLE AUTOMATIC SCREW
MACHINES
Acme Four-spindle Automatic Screw Machine Davenport Five-spindle Automatic Screw Machine Hayden
Five-spindle Automatic Screw Machine Gridley Fourspindle Automatic Screw Machine New Britain Sixspindle Automatic Screw Machine 39-83
CHAPTER IV
AUTOMATIC SCREW MACHINE TOOL
EQUIPMENT
Circular Forming and Cutting-off Tools Tool-holders
foi Flat Forming Tools Box-tools Methods of Applying Box-tool Cutters Work Supports for Box-toolsViii CONTENTS
Hollow Mills Centering and Facing Tools Drills and
Drill-holders Counterboring Tools Reamers and Reamerholders Swing Tools for Turning and Recessing Shaving
Tools Dies for Screw Machine Work Die-holders
Taps for Screw Machines Knurling Tools 84-147
CHAPTER V
ADJUSTING OR SETTING-UP AUTOMATIC
SCREW MACHINES
Setting-up the Brown & Sharpe Machine Adjustments
on the Cleveland Automatic Method of
Setting-up the
Acme
Multiple-spindle Machine Setting-up the Davenport Multiple-spindle Automatic 148-196
CHAPTER VI
ATTACHMENTS FOR AUTOMATIC SCREW
MACHINES
Screw Slotting Attachment Slotting and Slabbing
Attachment Index
Drilling Attachment Cross-drilling
Attachments Turret Drilling Attachment Burring Attachment Tap and Die Revolving Attachment Accelerated Reaming Attachment Drilling and Milling Attachment Vertical-spindle Milling Attachment End-milling
or Slotting Attachment Attachment for Forming Squares
and Hexagons Attachment for Robbing Worms and
Spiral Gears Magazine Feeding Attachments 197-223
CHAPTER VII
DESIGNING SCREW MACHINE CAMS
Effect of Cutting Speed on Cam Design General
Method of Designing Cams Laying Out Cams for a Specific Operation Development of Cam Lobe for Controlling Movement of Threading Die Allowance for Tool
Clearance Use of Cam-lever Templets Laying Out
Cams for
Recessing Cam Rise for Drilling Designing
Cams for Deep-hole Drilling 224-257CONTENTS IX
CHAPTER VIII
OPERATIONS ON SINGLE- AND MULTIPLESPINDLE SCREW MACHINES
Examples of Forming Operations Recessing Drilling and Counterboring from Cross-slide Making Watch
Parts in Screw Machine Examples of Work on the Cleveland Automatic Operations on Acme Multiple-spindle
Machine Use of Screw Machine for Producing and
Assembling Parts Thread Rolling in the Screw Machine
- Different Types of Tools for Thread Rolling Cutting
Helical Gears in Screw Machine Speeds and Feeds for
Screw Machine Operation 258-335
INDEX
ACCELERATING type of reaming
attachment, 207
Accelerating type of cross-drilling attachment, 202
Acme accelerating reaming attachment,
207
Acme
cross-drilling attachment, 202
Acme
milling attachments, 209
Acme multiple-spindle automatic, 39
adjustment of, 170
camshaft, 44
camshaft speed-changing mechanism,
45
feeding stock through spindle, 51
general description, 39
indexing mechanism, 49
mechanism for threading, 52
operation of cross-slides, 48
operation of spindle chuck, 50
operations on, 290
speed of main driving shaft, 47
spindle-driving mechanism, 43
standard tool positions, 41
Acme over-cut box-tools, 98
Acme
thread-rolling tool, 322
Adjustment of automatic screw machines, 148
Allowances for reaming, 125
Allowances for shaving cuts, 130, 131
Aluminum, use of roller supports in
turning, 109
Angle of centering tool, 115
Angles, cutting, for box-tool cutters,
in
Application of automatic screw machines, general, 7
Assembling parts in automatic screw
machine, 304
Attachment, for hobbing worm and
spiral gears, 215
Attachment for
self-opening dies, 137
for
drilling, 200
for forming squares and hexagons,
213
for milling, 209
for screw slotting, 197
magazine feeding, 219
Automatic, application of term, 2
Automatic screw machines, adjustment, 148
advantages of single- and multiplespindle designs, 8
classification, 4
development of multiple-spindle type,
6
development of single-spindle type, 5
general features, 3
multiple-spindle designs, 39
single-spindle designs, n
BACK-SLIDE cam, method of laying out, 241
Boring and recessing tools, 125
Box-tool
cutters, cutting angles, i T i
holding and adjusting, 106
methods of applying, 104
radial and tangential positions for,
104
size of
steel, 113
Box-tools, 94
over-cut type, 98
spring-releasing type, 99
setting, on Acme machine, 178
taper turning, 101
Box-tool work
supports, 108
holding and adjusting, 109
position relative to cutter, 112
Brass, speeds and feeds for, 332
Brown & Sharpe burring attachment,
205338 INDEX
Brown & Sharpe cross-drilling attachment, 201
Brown & Sharpe index drilling attachment, 200
Brown & Sharpe screw machines, deflector for chips, 1 8
general method of setting up, 158
general description, n
operation of cross-slide, 15
operation of turret-slide, 16
reversal of spindle for threading, 18
sample record of cam and tool equipment, 159
spindle speed changes, 18
stock-feeding and chuck-operating
mechanism, 15
Brown & Sharpe screw slotting attachment, 197
Brown & Sharpe tap and die revolving
attachment, 206
Brown & Sharpe taper-turning tool, 102
Brown & Sharpe turret .drilling attachment, 205
Burring attachment, 205
blanks, Brown & Sharpe,
234
Cam circumference, proportioning, 233
Cam
design, allowance for tool clearance, 247
effect of cutting speed on, 225
general procedure, 225
lobe for thread cutting, 243
rise for
drilling, 255
Cams for making a screw, 227
Cams for
recessing, laying out, 253
Cams for screw machines, designing, 224
Cams, function of lead, front-slide
and
back-slide, on B. & S. Machine,
224
Cam-lever
templets, use of, 250
Cast
iron, use of roller supports in
turning, 109
Centering and facing tools, 114
Centering-tool holder, 115
Centering tool, included angle of point,
"5
Centering tools and drills, setting, 154
Change-gears, table of No. oo Brown &
Sharpe machine, 233
Chicago screw machine, general description, 35
camshaft and main
cam, 36
chuck feeding mechanism, 36
feeding movements for tools, 38
method of cutting threads, 37
operation of cross-slides, 37
turret mechanism, 36
Chips, measurement of, to determine
feed, 329
Circular forming and cutting-off tools,
holder
for, 88
setting, 149
Circular forming tools, methods of
applying, 85, 89
Clearance for circular
tools, 90
Clearance for tools in laying out cams,
247
Cleveland automatic, adjustment of,
161
chuck-operating mechanism, 22
examples of work on, 281
feed-regulating drum, 29
general description, 20
operation of cross-slide, 28
spindle-driving mechanism, 22
stock-feeding mechanism, 25
turret and turret-slide, 26
variable feeding mechanism, 28
Cleveland independent cutting-off attachment, 211
Cleveland magazine feeding attachments, 219
Cleveland silent die-holder, 135
Cleveland slotting and slabbing attachment, 199
Cleveland thread-rolling attachment,
321
Compensating stops for multiple-spindle
machines, 60
Cone-point turning in screw machine,
274
Counterbores, amount of taper for, 120
holders, 123
location of cutting edge, 120
reasons for defective operation, 119INDEX
339
Counterbores and reamers, setting, 154
Counterboring and drilling from crossslide, 266
Counterboring and reaming feeds, 335
Counterboring tools, 119, 122
Cross-drilling attachment, 201
Cross-drilling attachment of opposed
spindle type, 204
Cross-drilling, example of work requiring, 294
Cutters for box-tools, 104
cutting angles, in
holding and adjusting, 106
position relative to work supports,
112
size of steel, 113
Cutting-off and forming tools, rake of,
93
setting on Acme machine, 177
Cutting-off attachment, Cleveland, 211
Cutting-off tool-holder, universal, 91
Cutting-off tools, 92
inclination of cutting edge, 229
thickness of blade, 93
DAVENPORT multiple-spindle automatic, 55
cam equipment for, 192
compensating stops, 60
cross-slides and swinging arms, 58
driving mechanism for camshaft, 58
general description, 55
indexing the spindle head, 60
method of cutting thread, 62
method of driving spindles, 55
operation of tool spindles, 56
sample record of operations, 193
setting-up, 189
speeds and feeds recommended, 63
Deep-hole drilling, designing cam for,
257
Die- and
tap-holder, telescopic, 136
Die and
tap revolving attachment, 206
Die-holders, 133
Cleveland silent type, 135
releasing, 134
Dies and
taps, setting, 155
Dies, attachment for self-opening, 137
Dies for screw machine work, 132
Drill-holder, high-speed, 118
Drill-holders for screw machines, 118
Drilling and Counterboring from crossslide, 266
Drilling and milling attachment, Acme,
209
Drilling attachment, cross-, 201
index, 200
Drilling, feeds for, 334
laying out cams for, 255
Drill rod, speeds and feeds for, 333
Drills and centering tools, setting, 154
Drills, flat, 122
for screw machine work, 116
END-MILLING or slotting attachment, 211
facing and centering tools, 114
pEED, determining, by measuring
chips, 329
for thread
rolling, 333
Feeding attachments, magazine, 219
Feeds and
speeds, 330
for different tools and
materials, 331
Feeds, for Counterboring and reaming,
335
for
drilling, 334
Flat forming tool-holders, 90
Flutes, number in taps, 139
Forming and cutting-off tools, rake of,
93
setting, on Acme machine, 177
Forming operations, examples of, 260
Forming tools, methods of applying,
85,89
tool-holders for
flat, 90
Front-slide
cam, method of laying out,
242
gears, helical or spiral, cutting in
screw machine, 323
(~^UN screw iron, speeds and feeds for,
332
Gridley multiple-spindle automatic, 71
camshaft and
cams, 74
feeding movements, 73340 INDEX
Gridley multiple-spindle automatic,
general description, 71
idle movements, 73
method of cutting threads, 76
tool-slide, 73
Gridley single-spindle automatic, application of motor drive, 35
arrangement of cams, 33
arrangement of turret, 30
general description, 30
operation of forming and cutting-off
tools, 33
fjAYDEN multiple-spindle automatic, 64
adjustable cams for tool spindles and
cross-slides, 68
chuck-closing mechanism, 66
general description, 64
operation of master cam, 66
thread cutting operations, 71
time required for making one piece,
69
Helical
gears, cutting in screw machine,
323
Hexagon and square forming attachment, 213
Holders, for centering tools, 115
for circular forming and cutting-off
tools, 88
for counterbores, 123
for flat forming tools, 90
for
reamers, 127
Hollow
mills, 113
Hollow mills or
box-tools, setting, 153
Hollow roughing mill, 98
INDEX drilling attachment, 200
KNURL-HOLDER, double type for
cross-slide, 143
opening and closing type, 143
Knurling tools, 140
Knurls, concave, 145
different methods of applying, 144
spiral, 146
straight, 145
Knurl teeth, angles for different materials, 145
calculating depth of, 145
LEAD CAM, function of, on Brown
& Sharpe machine, 224
method of laying out, for Brown &
Sharpe machine, 236
MACHINE steel, speeds and feeds
for, 333
Magazine feeding attachments, 219
Milling attachments, Acme, 209
Multiple- and single-spindle designs,
relative advantages, 8
Multiple-spindle screw machine development, 6
Multiple-spindle screw machines, 39
BRITAIN
multiple-spindle
screw machine, 76
indexing mechanism, 80
spindle construction, 78
thread cutting mechanism, 82
tool
slide, 79
Non-releasing type of die-holder, 133
OPERATIONS on screw machines,
miscellaneous, 258
pointing end of work, 259
PRODUCTION rate, calculating for
Acme machine, 172
RAISING block for swing tools,
128
methods of
setting on Brown &
Sharpe machines, 157
Reamer
holders, 127
Reamers and counterbores, setting, 154
Reamers for screw machine work, 125
Reamers, taper of, 125
Reaming allowances, 125
Reaming and counterboring feeds, 335
Reaming attachment, accelerated, 207
Recessing and boring tools, 125
Recessing, laying out cams for, 253
Recessing operation, 265INDEX 341
Recessing swing tools, 129
Record of cam and tool equipment on
Brown & Sharpe machine, 159
Record of operations on Davenport
machine, 193
Releasing die-holder, 134
Roller supports for box-tools, 95, 96,
109, in
Rolling threads in screw machine, 314
Roller type of steadyrest, 113
Rotary magazine attachment, 221
gCREW MACHINE, adjustment,
148
cams, designing, 224
classification, 4
development, 5
general features, 3
multiple-spindle designs, 39
operations, miscellaneous, 258
origin of term, i
relative advantages of single- and
multiple-spindle designs, 8
single-spindle designs, n
use
of, for machining and assembling, 304
Screw slotting attachments, 197
Setting-up automatic screw machines,
148
Shaving operation, allowances for, 130,
131
Shaving tools for screw machines, 130
Single- and multiple-spindle designs,
relative advantages, 8
Single-spindle screw machine development, 5
Slab milling attachments, 209
Slotting and slabbing attachment, 199
Speeds and feeds, 330
for different tools and materials, 331
Spiral gear-hobbing attachment, 215
Spiral gears, cutting in screw machine,
323
Spiral knurls, determining lead of teeth,
147
determining number of teeth around
circumference, 146
Spring-releasing box-tools, 99
Spring screw threading dies, making,
132
Square and hexagon forming attachment, 213
Steadyrest of roller type, 1 13
Steel for box-tool
cutters, size of, 113
Steel for box-tool
supports, 109
Stop for stock, setting, 152
Supports, work, for box-tools, 108
holding and adjusting, 109
Swing tools, for turning, 128
methods of setting raising block for
operating, 157
raising block for, 128
recessing, 129
setting, 156
TAP- and die-holder, telescopic, 136 .
Tap and die revolving attachment, 206
Taps and dies, setting, 155
Taps, chamfer for different pitches, 139
cutters for fluting, 139
for automatic screw machines, 138
for Norway iron and machine steel,
140
number of flutes
for, 139
width of
lands, 139
Telescopic die- and tap-holder, 136
Templet for dividing cam circumference, 238
Templet for laying out screw machine
cams, 235
Templets, use of cam-lever type, 250
Thread
cutting, development of cam
lobe
for, 243
dies for screw machines, 132
number of revolutions
for, 229
on Acme machine, 181
on Davenport multiple-spindle automatic, 192
on Gridley multiple-spindle automatic, 76
on Hayden multiple-spindle automatic, 71
on New Britain multiple-spindle
automatic, 82
reversal of spindle for, in B. & S.
machine, 18342 INDEX
Threading-die holders, 133
Threading dies, methods of making
spring screw type, 132
Thread
rolling, Acme type of holder
for, 322
attachment, Cleveland, 321
by means of swing tool, 320
calculating blank diameter, 315
Cleveland attachment for, 321
feeds
for, 333
holder for passing roll over work, 319
holder for passing roll under work,
320
inclination of thread on
roll, 315
in screw machines, 314
preparation of work for, 318
shape of thread on roll, 316
size of thread
roll, 317
steel for thread rolls applied to steel,
3i5
Thread
roll, size of, 317
Tilting magazine attachment, 219
rotary type of, 222
Tool
clearance, allowance for, in cam
design, 247
Tool equipment for screw machines, 84
Tool-holders for boring and recessing
tools, 125
Tool-holder, universal cutting-off, 91
Turret drilling attachment, 205
UNIVERSAL cross-slide knurling
tool, 141
Universal
cutting-off tool-holder, 91
VERTICAL magazine feeding attachment, 220
parts, making, in screw
machine, 271
Worm
gear bobbing attachment, 215
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