Unibor UA5000 Autofeed User Manual

1

The UA5000

Autofeed

machine

is part of

the

range of

specialist

engineering

products.

UA5000 AUTOFEED

DRILLING SYSTEM

OPERATING INSTRUCTIONS

(A Nitto Kohki Company )

To get the best possible

performance from your

new Magnetic Drilling

Machine, please read

this carefully

BEFORE using

the drill.

FOR THE

2

3

2

BEFORE STARTING

(A Nitto Kohki Company )

Read these instructions carefully before
operating, maintaining or servicing this
tool.

Please keep these instructions in a safe
accessible place.

Read to fully understand and observe
the following safety precautions and
warnings. Careless or improper use of
this equipment may result in serious or
fatal injury.

Always wear eye, head and ear
protection equipment, when using this
tool.

WARNING! Indicates instant possibility
of severe personal injury or loss of life,
if instructions are not followed.

CAUTION! Indications a possibility of
personal injury or equipment damage, if
instructions are not followed.

OPERATOR SAFETY

• Always read the instructions carefully so as to
avoid any injury or damage when unfamiliar with
this equipment.

• Always wear a safety face shield or goggles.

• Wear ear defenders when using this equipment.

• Always wear heavy clothing, boots and gloves.
Do not wear loose clothing, short pants, sandals
etc. and ensure that long hair is tied up above
shoulder length.

• Do not operate this equipment when tired,
ill or under the influence of alcohol, drugs or
medication

• Never allow an inexperienced person operate
this equipment.

• Never operate the equipment in damp, or water
logged area.

• Keep all carry handles and levers free from oil.

• Keep hands away from the cutter when it is
rotating. Ensure that it has stopped rotating and

is disconnected from the power source before
touching the cutter.

• Do not attempt to gain access into the electrical
panel. There is risk of electrical shock.

• Never use a larger diameter cutter than
specified for use with this equipment.

• Do not attempt to connect the equipment to a
power source other than that specified by the
manufacturer.

• Ensure that the cutter being used is sharp and
free from damage.

T

OOL SAFETY

• Inspect the entire piece of equipment before
use.

• Replace damaged components, lubricate
where necessary and ensure that all fasteners
are secure.

• Always use a safety chain to secure the
equipment when it is being used above the
ground.• Use only accessories that have been
recommended by the manufacturer. Failure to do
so could result in damage to the tool and may
invalidate the warranty.

WARNING!

Never modify the tooling any way. Do not use
your equipment for any job other than for which
it is intended.

M

AINTENANCE SAFETY

• Maintain according to the manufacturers
recommended procedures.

• Disconnect the equipment from the power
source before attempting any maintenance.

• Use only genuine replacement components as
recommended by the manufacturer.

T

RANSPORT AND STORAGE

• Before moving the tool, ensure that the cutter
has stopped rotating.

• Carry the tool with the cutter pointing away
from the body to avoid laceration.

• After use, clean the equipment and it’s
accessories and store in a dry place.

• Store the equipment along with the maintenance
tools in its correct carrying case when not in use.

Page 3.
Warnings and Safety Instructions

Page 4.
Broach Cutting Concept & Technical overview

Page 5.
Machine Parts & Electronic Functions

Page 6.
Preparation & Drilling

Page 7.
Manual Feed & Autofeed

Page 8.
Parts Explosion Diagram

Page 9.
Parts List

Page 10.
Maintenance and recycling

Page 11.
EU Declaration of Conformity

43, Catley Road,

Darnall, Sheffield

S9 5JF. England.

Tel: [phone]

Fax: [phone]

Website- http://www.unibor.com

e-mail: [e-mail]

CONTENTS

INTRODUCTION

Congratulations on the purchase
of your new, lightweight, autofeed
multi-purpose magnetic base drill.
This is a high quality product with
unique features that make it the
perfect solution for your hole drilling
requirements.

4

5

If you are unfamiliar with the use of annular

(or broaching) cutters, read this guide - you will
benefit from the better performance and longer
life of the tool if you understand the concept.
Annular cutters only cut material at the
periphery of the hole leaving a solid ‘slug’ at
the centre which is ejected at the end of the cut,
rather than converting the entire hole to shavings.
As a result, the time and energy required to make
the hole is lower than for a traditional twist
drill.
The broaching capacity of a machine is
therefore greater than the twist drill capacity.
The slug ejected after the cut also has a higher
scrap value than shavings.
The benefits in terms of productivity can be
as much as double.

Power

required

Material
removed

Cutting Time

Cutting Time

ELECTRONIC CONTROLS

LOAD DETECTOR

If there is an overload during drilling, the
following functions are automatically activated.
The load detector may not function properly if
the power supply is an engine generator or the
supply voltage is too high or too low.

A

UTOMATIC FEED CONTROL FUNCTION

This system automatically controls the feed
rate where several seconds after start-up of the
drilling it automatically slows down the feed
and then the rate varies depending on the load
on the motor. The feed rate is also automatically
regulated according to the cutter diameter.

OVERLOAD STOP FUNCTION

Both the drilling and feeding operations stop
automatically whenever there is an excessive
load on the motor, preventing the motor and
cutter from breaking. If the cutter is dull, however,
breakage may be inevitable.

C

YCLE STOP FUNCTION

After the cut has finished, a detector responds to
the reduction in load and both the drill and the
feed motor automatically stop.

MACHINE PARTS

Capstan

Speed
change
switch

LIMIT SWITCH FUNCTION

Even if the automatic stop function fails at the end
of drilling, allowing the drill motor to continue
downward feed, the limit switch stops both the
drilling and feed when the stroke reaches its
lower limit.

S

IDE SLIP DETECTION FUNCTION

If the magnet slides off while drilling, the drill
motor and the feed will stop.

R

ESTART PREVENTION FUNCTION

• When a power failure occurrs while the tool
is being used, the restart prevention function
operates when the power is restored.

• Even when the drill stops during operation
because of the interruption or accid ental
unplugging of the power supply, and the power
supply then resumes, the indicator lamps are lit
and the magnet regains its attracting power, but
the drill motor will not rotate.

• To resume work, set the magnet switch to On
and then the motor switch to On, and the drill
motor will start.

BROACH CUTTING

Cradle slide

Cradle slide
adjustment screws

Cutter capacity - 12 - 50mm (HSS)
No load speeds - 350/650 rpm
Power consumption - 1150w
Clamping force - 720kg
Size (L/W/H) - 330 x 268 x 565mm
Weight - 21 kg
Voltage - 240v
ALSO INCLUDES: Warranty, Carrying case,
Allen keys, Safety strap, Cutting Oil

• The easy to use and rugged design makes the
UA5000 a cost effective solution to drilling
clean, accurately positioned holes.

• Powered by a variable speed Eibenstock UNI
II motor.

• Automatic load sensing cutter feed.

MAIN FUNCTIONS

1. Slow start

The feed motor rotates slowly before cutting
starts for cutter protection and ease of
centring.

2. Auto feed speed adjustment

The feeding speed is automatically adjusted
depending on the size of cutter used.

3. Auto-return

The drill motor rises quickly when cutting is
completed and stops at its original retracted
position.

4. Auto-stop

The drill motor stops to avoid breakage of the
cutter when the force required to cut reaches a
predetermined amount. The drill motor will stop
if the magnet base moves during cutting.

5. Non-accidental-start

The machine must be reset if the power supply
is lost during operation. The switch must be
manually set to off and then back to on to reset.

TECHNICAL OVERVIEW