Product Manual B

Safe Operation
Observe the following guidelines when performing Press operations.
• Operator Safety / Safe Work Zone Applying pressure to parts
or assemblies can fail the part being worked, fail a part adjacent
to the work or fail the pressing tool. Failed parts can become
airborne projectiles with deadly force. Protect yourself with
appropriate personal protective equipment when operating the
press. Protect others by dening a safe work zone for press use
and limiting access to the press operator.
• Press Inspection Press operations may generate concussive
failure to mechanical parts. Although Edwards press machinery is
fabricated with both bolted and welded construction, concussive
failure is a possibility over time or with extreme use. Prior to any
press operation, visually check all bolted and welded connections
for failure. All bolts must be tight and welds intact. Failure to
verify the structural integrity of the machinery may result in work-
piece shift, part ejection, operator injury or machinery damage.
• Workpiece Inspection Workpiece failure is the most common
source of injury during press operations. Take time to thoroughly
understand the workpiece. Never apply pressure to unstable
objects, round shapes, balls, springs or any item with elastic,
spring-back tendencies. Conrm the material properties of the
workpiece will withstand the pressure to be exerted by the press.
Conrm that workpiece items are stripped down to their simplest
form. Many components contain unseen items that could fail
during the press operation. Remove all sub components known to
the workpiece prior to a pressing operation. Workpiece must be
clean and free of substances at the pressing surface that would
allow the pressing surfaces to slip under load.
• Workpiece Support Workpiece failure may be a result of
improper or inadequate workpiece support. Adequate support
for the workpiece must be present through the entirety of the
press operation. Understand your workpiece and conrm that the
workpiece support system you employ will withstand the pressure
being exerted through the press operation.
• Safe Use of Tooling Edwards Manufacturing Company pro-
vides optional press tooling designed to provide for basic press
applications. These tools are not designed to provide for all press
applications. Care must be taken when selecting press tooling.
Select tooling that is designed and rated for the specic applica-
tion. Press with the shortest, most compact, tool length available.
Conrm that press tooling and workpiece are aligned and follows
a direct press path. Conrm that the correct press sleeve and ar-
bor plate are used. Misaligned loads may fail the press tooling or
workpiece and cause operator injury or damage to the machinery.
• Special Fits
Not all parts were designed or engineered to be
removed or applied with a press. When inspecting your workpiece,
conrm any press tolerances, environmental, heating, cooling or
xative requirements that require special care prior to initiat-
ing the press operation. Do not proceed with a press operation
without acknowledgment that the workpiece is pressable.
• Do Not Force Press Consider the rating of the press and the
work at hand. Gradually build pressure being applied to the
workpiece. Carefully observe the workpiece to avoid tooling
misalignment or workpiece failure. Observe the press as it reacts
under load. Do not overload the press. Under heavy press opera-
tion built up force is released when the pressed part breaks free
of its mount. This release of pressure is sudden and can appear
to shake the machinery. Take care to avoid parts falling from the
workpiece.
Press Operation
1. For Operator safety, wear personal protective equipment, clear
the work zone of any tooling or debris prior to powering the
machinery on.
2. Perform press inspection.
3. Perform workpiece inspection.
4. Turn power source on.
5. Retract ram, install press tooling.
6. Adjust press bed as necessary to achieve the shortest distance
between the press pin and workpiece. Conrm hardened pins are
fully engaged with linchpins secured.
7. Tighten retention bolts.
8. Safely load, position and support workpiece in press cavity.
9. Align and secure cylinder and ram over workpiece press site.
10. Conrm minimum table height to workpiece, alignment of ram
and tooling to workpiece.
11. Carefully, slowly, extend ram and tooling to meet press site.
Preload the workpiece and observe workpiece support and tooling
alignment. Observe the preloaded condition from multiple angles
to assure that the press tooling is in alignment with the ram and
workpiece. If unstable, reverse ram, reset workpiece and re-align
press tooling.
12. Gradually build pressure to complete the press operation. Do not
overload the press.
13. Retract the ram to relieve hydraulic pressure following the press
operation.
10
Operations
11
Press Brake tooling is available in a 12” assembly for the 20 Ton
Shop Press, and Press Brake tooling ranging in size from 12” to
32” is available for the 40 Ton Shop Press. Brake tooling will al-
low for the graduated bending of 10 ga. x 32”, 1/4” x 24”, 3/8” x
6” at stock up to 90 degrees.
Press brake tooling consists of a moving brake ‘punch’ and a
stationary brake ‘die’. The punch is held within a push block that
is mounted upon two guide pin and spring assemblies xed to
the mounting plate. The die is held within two retaining brackets
that are bolted to the mounting plate. Hydraulic force is applied
to the push block assembly to activate the punch into the die as-
sembly. Punches and dies are wearing parts and may need to be
replaced over time. Contact your Edwards Dealer or the Factory
for genuine Edwards replacement parts.
Setup
Turn off power to press by depressing the red stop / off button
on the Edwards Ironworker or Edwards Porta-Power or lockout
upstream power at the main electrical panel.
If press-brake tooling was ordered with your press, the tooling is
already installed and ready for operation. If ordered as an option, your
press-brake tooling ships on a pallet. This tooling is heavy and is
supplied with fork-lift installation hardware for safe and easy
setup.
Install the brake tooling by unbolting the brake tooling from the ship-
ping pallet and inserting fork-lift forks through the 4 brackets bolted
to the brake mounting plate. Once the forks are stable in the brackets,
apply clamps (not supplied) to the forks beyond the brake to prevent
the brake from slipping off forks during installation.
Prepare the Press cavity to accept the brake tooling. Clean the press
bed of any tooling or debris. Conrm that the press bed is secure, the
hardened pins are properly seated and secured with their retaining
clips.
Carefully lift the brake tooling with forklift and guide into the press
cavity. Lower the brake tooling to the press bed and align through bolt
holes in the press brake base table with the bolt slots in the press bed
anges. When aligned, carefully remove the safety clamps from the
forks and remove the forks from the lifting brackets.
Secure the brake table to the press bed with 4pcs - 3/8” x 2” cap-
screw, washer and nut assemblies (not supplied).
Remove the 4 mounting brackets. Re-install the mounting bolts.
The 4-way bottom die is marked for 1/16”, 3/16”, 1/8” and 1/4” at
stock. Select the correct bottom die surface according to the material
being used. Observe brake and material tolerances as listed in the
tooling specications and at the tooling station.
Apply standard press cup to ram end, center ram over press-brake
tooling and power machine on.
Jog ram down to press brake push block and center within the cup
centering guide. Once aligned, secure rolling cylinder to head frame by
tightening retention bolt.
Safe Operation
Observe the following guidelines when operating Press Brake Tooling.
• Never exceed the capacities of the machine or tooling as
described in the Ironworker specications or listed at the tooling
station.
• Keep the Brake tooling clean.
• Check Brake clearance and alignment at every tooling change,
maintenance cycle or extended brake operation. Failure to
maintain proper clearance may damage punch, die and support
brackets or adjacent tooling.
• Brake material towards the center of the brake length.
• Do not stack material in the Brake station.
• Use Brake aids when working with small items at the Brake sta-
tion.
• When not in use, remove the Brake die from the holder.
Brake Operation
1. Clear the Press Brake tooling station of any tools or debris prior to
powering the machine on.
2. Turn your power source on and place the material to be “broken”
on top of the bottom 4-way die.
3. Center your material within the length of the bottom die.
Bending material ‘off-center’ to the ram may load the die unequally
and produce poor quality parts, jam the push block on the guide
pins and void the warranty on the tooling.
4. Position your material on the Brake die for the desired bend. Jog
the ‘punch’ down to meet the material, clear your hands from the
working area and depress the extend button on the hand control.
Extend the ram to achieve your desired bend. When the operation
is complete, retract the ram by pressing the retract button. Remove
your material from the Press Brake tooling when the ram has fully
retracted from the tooling and the tooling has returned to its neutral
position.
Optional Tooling - Brake