Collets - Hardinge

®
Hardinge Product brochures
The Hardinge
Advantage
Sure-Grip® Expanding
Collet Systems:
Brochure #2270
Swiss-Type Collets &
Guide Bushings:
Brochure #2283
Collets for
Automatics:
Brochure #2287
HQC® Quick-Change
Collet Systems:
Brochure #2339
Hardinge Sure-Grip®
3-Jaw Power & QuickChange Chucks:
Brochure #2357
Spindle Tooling for
Manual & CNC
Lathes:
Brochure #2348
Precision Tool
Holding Systems
for Mills:
Brochure #2350
Toolholder Collets,
Toolholder Bushings &
Round Shank Holders:
Brochure #2351
HCAC® Collet
Adaptation Chucks:
Brochure #2352
Sure-Grip® Chuck
Jaws for All
Brands of Chucks:
Brochure #2358
Machine Tool
Products
Overview:
Brochure #1190
Worldwide Manufacturer of
Machine Tools and
Workholding/Industrial Products
Workholding &
Industrial Products
Overview:
Brochure #2353
www.hardingetooling.com
your online purchasing source for workholding
Hardinge Inc.
One Hardinge Drive
P.O. Box 1507
Elmira, New York 14902-1507 USA
Brochure #2327-C
Part No. HAC-0009500-2327
January 2002
To order in USA:
800-843-8801
To order in Canada:
800-468-5946
All other calls:
607-734-2281
Fax (machine tools):
607-734-8819
Fax (workholding/tooling): 607-734-3886
Internet:
www.hardinge.com
www.hardingeworkholding.com
(on-line ordering) www.hardingetooling.com
All other marks indicated by ® or ™ are trademarks of Hardinge Inc.
All specifications subject to change without notice.
Litho in USA
© Hardinge Inc. 2002
7.5MHI 0102 Printed in USA
®
Leader by Design™
A Focus on Productivity
Hardinge Inc. has provided
workholding solutions for
machine tool users for over a
century. We are the only
machine tool builder that also
designs and manufactures a
comprehensive range of
workholding systems. This
strategy has produced the
most adaptable, flexible,
complementary workholding
and CNC turning machine
packages available for
optimized productivity.
The Hardinge spindle tooling
systems for the QUEST®,
CONQUEST® and COBRA®
line of CNC lathes are specifically designed to match
the spindles of the machines
to meet all of your machining
requirements.
The unique Hardinge jaw
chuck / collet-ready spindle
design with A2 spindle mount
allows quick changeover
capability with the flexibility
to change from throughspindle bar work to second
operation and chucking work
without the time penalties
and alignment problems
associated with other machine tool builders’ systems.
The range and adaptability
of Hardinge workholding
systems for second operations, blanks and castings
are second to none. These
are adapted from standard
“off-the-shelf” blank “emergency-style” step chucks for
holding round and non-round
shapes. Short grip length
and minimum distortion are
just two of the many benefits
realized.
For maximum reduction of
setup time, the HQC® QuickChange collet system has a
distinct advantage over other
collet systems. Changing
from collet to collet takes less
than twenty seconds and
provides the benefit of true
parallel gripping.
For internal part gripping,
Hardinge Sure-Grip® expanding collets with machineable
Dead-Length® work stops
provide equally effective
solutions for machining parts
with relationship to a premachined bore.
Sure-Grip® lever-operated
counterbalanced 3-jaw
chucks benefit from the same
combination of Hardinge
workholding experience and
technology, giving you
maximum performance at a
minimum price.
The Hardinge Spindle with Collet Seat
®
Cross Section of the Hardinge-Designed Spindle
with Collet Seat and ANSI A2 Spindle Mount
The collet angle, back bearing, spindle face, nose taper and locating
shoulder are finish ground to ensure maximum spindle accuracies. You
are assured the best possible spindle runout – Total Indicator Reading
(T.I.R.) with submicron accuracy on every spindle.
2
Large stocks of CNC lathe
spindle tooling systems
ensure that when a Hardinge
customer has a workholding
problem, Hardinge has the
solution—ready to ship.
A comprehensive range of
workholding accessories
ensures that there is a
Hardinge solution to most
workholding problems
within the capacity of each
machine.
Advantages of the Hardinge® Spindle
The Hardinge spindle design is both jaw chuck- and collet-ready and
does not require a spindle adapter
Hardinge Spindle
shown with Collet
• Collet seats directly in the Hardinge spindle
• Minimum overhang from the spindle bearings
assures that spindle accuracy is transferred
directly to the workpiece
• Maximum rigidity and gripping power
transferred to the part
• Minimum weight on spindle
• Maximum utilization of RPM
• Optimum T.I.R.
• Gripping force directly over the workpiece
• Superior tolerances and finishes
• Capable of using maximum machine stroke capacity
• Quick changeover—collet draw tube is easily and
accurately adjusted from the back of the spindle
• Longer tool life
• Ability to use a wide variety of workholding devices—
3-jaw chucks, collets, quick-change collets, step
chucks, expanding collets, Dead-Length® systems,
fixture plates and others
The Hardinge spindle design
allows quick changeover from bar
work to chucking work!
Hardinge Spindle
shown with 3-Jaw Chuck
3
Disadvantages of Other Spindle Designs
overhang from
spindle bearings
Hardinge® Spindle Design—
No collet adapter required
Other CNC Lathe Spindle Design—
Collet adapter required
overhang from spindle bearings
Other spindle designs require the use of a collet adapter creating an extreme
overhang from the spindle bearings. Any error in the spindle is multiplied by
the overhang distance.
This spindle design:
4
• Is not rigid
• Is not easily adjusted
• Creates poor T.I.R.
• Reduces the work envelope
• Creates excessive overhang
• Does not allow quick changeover
Wide Range of Workholding Products
with Quick and Efficient Changeover
Collets
Solid Collets, Master
Collets & Pads, Emergency Collets,
Threaded Stops for
Collets, Dead-Length®
Collets and Special
Collets—pages 7-11
Basic Workholding System
for Hardinge CNC Lathes
Sure-Grip® 3-Jaw Power Chucks
Sure-Grip 3-Jaw Lever-Operated Counterbalanced
Chucks—page 6
HQC® Quick-Change Collets
HQC Quick-Change Collet Systems—page 7
Step Chucks
Step Chucks, Dead-Length® Step Chucks, Dead-Length
Spider-Style Step Chucks, Step Chucks for Precision Die
Castings or Non-Round Workpieces, and Special
Step Chuck Applications—pages 11-15
Sure-Grip® Expanding Collets
Sure-Grip Expanding Collet Systems for ID Gripping
—page 16
5
Sure-Grip® 3-Jaw Power Chucks
Lever-Operated and Counterbalanced
4", 5", 6", 8", 10" and 12"
Sure-Grip 3-Jaw Power Chucks—
10" chuck shown.
Hardinge Power Chuck
mounted on Hardinge CNC lathe
spindle
Quick-Change Sure-Grip®
Power Chucks
• The only precision lever-operated, counterbalanced 3-jaw chucks that are
priced to compete with non-lever operated, non-counterbalanced chucks
• Designed to run at higher spindle speeds with optimized gripping force
• Dynamically balanced to run super smooth
• 60° x 1.5mm industry standard metric serrated master jaws—low cost jaw
replacement
• 90° x 1/16" industry standard inch serrations also available
Request brochure #2357 (Chucks) and #2358 (Jaws)
6
Hardened & Ground Collets
Bar Work & First/Second Operations
Hex Collet
Square Collet
Collets
Decimal Collet
Round Collet
•
•
•
•
•
•
Hardened and ground bores
Metric and inch sizes from stock
Most accurate location
Round, hexagon and square
Special profiles—made to order
Serrated bores—greater gripping power
Request brochure #2348
Style “S” Master Collet System
Master Collets and Pads
S-16
S-12
• Hardened and ground
• Round, hexagon and square
• Serrated bores—
greater gripping power
• Lower cost
per bar size
• 16C, 20C and
25C versions
Request brochure #2348
HQC® Quick-Change
Collet System
• Change from one size collet to the next
in less than 20 seconds
• Hardened and ground bores
• True parallel gripping—accuracy & force
• Metric and inch sizes
• Round, hexagon and square configurations
• Greatest range: ±1/64" on diameters under 2";
±1/32" on diameters over 2"
• Serrated bores—greater gripping power
Request brochure #2339
7
Soft Emergency-Style Collets
Second Operation Systems
Boring out emergency collet with pins in place
Pin
Step Collet
End-for-end part in Step Collet
•
•
•
•
•
•
•
Bore to suit application
Various size pilot holes—various nose lengths available
3-pin design—enables precise gripping pressure when boring out the collet
Absolute precise concentricity—bored in place—matches spindle bearing T.I.R.
99% gripping around the part—minimal distortion
Short gripping length
Reusable many times—up to the bar capacity of the machine
Request brochure #2348
8
Threaded Stops for Hard & Soft Collets
Solid Stop with Adapter
Solid Stop
Ejector Stop
with Adapter
Long Stop
Solid Stops, Ejector Stops and Long Stops all have adjustable and
machineable stop rods to suit your application. Stops lock against
the end of a Hardinge collet to permit a wide variety of chucking
work to desired part lengths.
Request brochure #2348
9
Special Collets
Hardinge has a “special collet” department
dedicated to the manufacture of specialshaped and special-accuracy collets and
step chucks. Hardinge is world renowned
for having the ability to produce very
precise hardened collets for gripping
extruded stock for bar work, as well as
step chucks for gripping large round and
irregular-shaped parts for first operation
and secondary work. This department has
complete facilities to either ram or wire
EDM complex contours needed for gripping
your workpiece. Lead time is typically
between 3 and 4 weeks.
10
• Special Accuracy
• Special Shapes
• Off-Center
• Threaded
• Extruded Stock
• Multi-Stepped Parts
• Oversize Step Chucks
• Specialty Machines
and High-Speed Production
Dead-Length® Collets
and Dead-Length Step Chucks
Dead-Length Collet
Dead-Length
Step Chuck
Dead-Length Through Collet
(Bar Work)
• Absolute length control regardless of
gripping diameter variations
• Emergency styles—bore to size on
machine—round or non-round shapes
• Hardened and ground to your workpiece
diameter
Request brochure #2348
11
Dead-Length® Spider-Style Step Chucks
Step Chuck
Workpiece
Spider
• Absolute length control
regardless of gripping
diameter variations
• Most accurate T.I.R.
(only one moving part)
• Locates against the collet
angle of the spindle
• Emergency styles—bore
to size on machine—
round or non-round shapes
• Hardened and ground
to order
Request brochure #2348
Stop Button
Closer
Dead-Length® Work Stop Assembly
Another Hardinge innovation for providing absolute part length control using
standard workholding components. Work stop assemblies are spindle-nose mounted.
Request brochure #2348
Work Stop &
Spindle Mount
Work Stop & Spindle Mount
(Threaded arbor for quick
loading off the machine)
Work Stop & Spindle Mount with Adapter
(Long stem part with special locating surface)
12
Step Chucks
The Gem of Hardinge Workholding Systems
End-for-End Step Chuck with Two Gripping Diameters
Closer
Step Chuck
• Extends the collet gripping principle to the maximum chucking
capacity of the machine tool
• Run at maximum RPM—Minimal centrifugal force with step chuck
and closer
• Infinitely adaptable—round and non-round shapes
• Excellent for short grips—no distortion
• Multiple grips “end-for-end”—one machining sequence to completely
finish the part
• Eccentrics with synchronized locations eliminate special workholding fixtures
• Hardened and ground to order
Request brochure #2348
End-for-End Step Chuck with Two Steps
Closer
Step Chuck
13
Hardinge Short-Grip Step Chuck Design
Closer
Workpiece
Step Chuck
Typical Short Grip with Hardinge Step Chucks
• 99% contact around the part location ensures maximum holding power
without distortion
• No decrease in gripping force at high spindle speeds—centrifugal force
will not open the step chuck
14
Special Step Chuck Applications
Step Chuck for a Precision Die Casting
Soft Emergency Step Chucks for
Irregular Shape Die Castings and
Non-Round Workpieces
This method of accurate and secure gripping in a
Hardinge step chuck eliminates 2-jaw chucking and
elaborate special fixtures.
Hardened and
Ground Step Chuck
for a Non-Round
Workpiece
End-for-End Round Fixture
in Single-Step Precision
Step Chuck
Fixture Loaded Off the Machine
Supplied “off-the-shelf”, Hardinge soft step chucks
can easily be machined to receive irregular-shaped
die castings. Hardinge can manufacture hardened
and ground step chucks for your longer production
runs. Our special workholding department can satisfy
your requirements with short lead times. Step chucks
are available with three or four splits
to suit diverse workpiece
configurations.
Threaded Solid Step Chuck
Eccentric Part in
Step Chuck
(Counterweight
not shown)
Hardinge emergency spindle tooling systems and peripheral accessories are made to be
adapted by the customer on the machine that will be used for the production operation.
For volume production or larger batch work, hardened and ground versions or other special
features can be supplied, typically in a lead time of 4 to 5 weeks.
15
Sure-Grip® Expanding Collet Systems
for ID Gripping
Precision Length Control
using Stop Plate
Stop locates against bottom
of trepan in workpiece
Stepped Stop Plate to
locate on counterbore
• True parallel internal gripping from 1/8" to 4" (3mm to 100mm) diameters on a
series of six expanding arbor sizes
• Complete range of machineable work stops to ensure precision length control
• Collets will accept 1/64" (.4mm) variation of ID chucking diameter
• Heavy-duty machining capabilities using the Sure-Grip system, with or without
tailstock support
• Collets can be machined to suit your applications
Request brochure #2270
16
Other Hardinge Workholding Systems
There are many additional Hardinge workholding systems available as standard “off-theshelf” products designed to increase the scope of workpieces which can be held using
Hardinge lathes or Hardinge lathe spindle products. These workholding products can
also be used on non-Hardinge machine tools.
Fixture Plates / Face Plates
Fixture plates and face plates are used to
make special application workholding
arrangements for parts that cannot be held
using conventional Hardinge systems.
Request brochure #2348
Spindle Reducer Collet
Adapters—
16C-to-5C, 20C-to-16C, 25C-to-16C
Adapters enable the use of small-size
collets in larger spindle capacity
machines. There is also a 20C-to-16C
step chuck adapter available for 20C
machines.
Request brochure #2348
Hardinge 16C Collet Block
An A2-5 16C spindle nose block enables
all of the 16C Hardinge lathe spindle
tooling systems to be used for other
machining processes. The same versatile
and accurate Hardinge lathe workholding
system can be used for subsequent
operations, thus eliminating additional
workholding and fixturing cost. The block
has a pneumatically actuated collet “open”
and “close” mechanism.
Request brochure #2348
17
Accessories
Hardinge offers a complete line of accessories to complement their workholding
products.
Request brochure #2348
•
•
•
•
•
Collet Wrenches and Spanners
Bar Pullers and Knurling Tools
Dead-Length® Ejector Stops
Bushings and Toolholder Collets
Collet Racks
Wrenches for Workholding Devices
Bristol Wrench
ch
End View
rW
ne
pan
e® S
ing
d
Har
Bar Stock Pullers and Knurling Tools
Ejector Stops for Dead-Length®
Collets & Step Chucks
Bushings and Tool Holder Collets
Request brochure #2351
Collet Racks
HARD
INGE
BROT
HERS
, INC.,
ELMIR
A,
N.Y.
HAR
HARD
INGE
DING
BRO
THER
S,
INC.,
E
ELMI
RA,
N.Y.
18
®
ren
Additional Workholding Applications
Over-the-Shoulder Gripping in Collet with Bushing
for End-for-End Workpiece
Extended Nose Collet
with Ejector Stop
ID Gripping with Sure-Grip®
Expanding Collet Sytem
with Stop Plate
Eccentric Collet with Stop
Dead-Length Collet
with Locating Ring System
Dead-Length® Step Chuck
with Locating Stop System
Collet with Dead-Length
Backing Plate
Dead-Length Backing Plate
with Special Collet Nose
Pull-Back System for
Piston-Shaped Parts
Dead-Length Step Chuck
with Pins System
Step Chuck with Bushing
for Part Reversing
Dead-Length® Step Chuck with
Locating Stop System
Hardinge manufactures a broad range of machine tools including horizontal and vertical turning
machines, inverted-spindle (automated) vertical turning lathes, twin-spindle/twin-turret turning
centers, manual toolroom lathes, machining centers and grinding machines.
Request brochure #1190 for more information on Hardinge Machine Tools
19
®
Hardinge Product brochures
The Hardinge
Advantage
Sure-Grip® Expanding
Collet Systems:
Brochure #2270
Swiss-Type Collets &
Guide Bushings:
Brochure #2283
Collets for
Automatics:
Brochure #2287
HQC® Quick-Change
Collet Systems:
Brochure #2339
Hardinge Sure-Grip®
3-Jaw Power & QuickChange Chucks:
Brochure #2357
Spindle Tooling for
Manual & CNC
Lathes:
Brochure #2348
Precision Tool
Holding Systems
for Mills:
Brochure #2350
Toolholder Collets,
Toolholder Bushings &
Round Shank Holders:
Brochure #2351
HCAC® Collet
Adaptation Chucks:
Brochure #2352
Sure-Grip® Chuck
Jaws for All
Brands of Chucks:
Brochure #2358
Machine Tool
Products
Overview:
Brochure #1190
Worldwide Manufacturer of
Machine Tools and
Workholding/Industrial Products
Workholding &
Industrial Products
Overview:
Brochure #2353
www.hardingetooling.com
your online purchasing source for workholding
Hardinge Inc.
One Hardinge Drive
P.O. Box 1507
Elmira, New York 14902-1507 USA
Brochure #2327-C
Part No. HAC-0009500-2327
January 2002
To order in USA:
800-843-8801
To order in Canada:
800-468-5946
All other calls:
607-734-2281
Fax (machine tools):
607-734-8819
Fax (workholding/tooling): 607-734-3886
Internet:
www.hardinge.com
www.hardingeworkholding.com
(on-line ordering) www.hardingetooling.com
All other marks indicated by ® or ™ are trademarks of Hardinge Inc.
All specifications subject to change without notice.
Litho in USA
© Hardinge Inc. 2002
7.5MHI 0102 Printed in USA
®
Leader by Design™