Kitagawa NPGT Manual de usuario

INSTRUCTION

MANUAL

MODEL NPGT

Thin 2-jaw Parallel Gripper

・This Instruction Manual has been prepared for intended use for

production engineers and maintenance persons who operate this

product. When the beginners use this product, be sure to receive the

guidance from skilled persons, sales agents, or us in advance.

・Before installing, using, or maintaining this product, read carefully the

safety precautions given in this manual so as to understand them

completely. If you do not heed given instructions or safety

precautions, serious human accidents, death, or physical damage

may occur.

・Store this manual with care in the specified place at hand, and reread

it as necessary for correct use of the product.

・Please contact the sales agent if you have any uncertainty or doubt

about this manual.

DANGER

MA1289YHG1

Version1.01(20200715)

Preface

This manual provides detailed information on the thin 2-jaw parallel gripper (model NPGT)

so that you can understand its performance and functions and use it safely and correctly.

Before using this gripper, read this manual carefully to understand how to use the gripper

correctly. Always follow the instructions and warnings given in “Important Safety

Precautions” and “Precautions for Use”. Failure to follow these precautions could result

in serious human accidents.

Terms and Symbols Used for Safety

Messages

In this manual, handling precautions that are considered especially important are classified

and displayed as shown below according to the degree of risk (seriousness of harm) that

could result. Please completely understand the meaning of these terms and follow the

instructions for safe operation.

Safety Alert Symbol

This triangle is a safety alert symbol used to alert you to potential safety hazards. To avoid

death or injuries that could occur, follow the safety messages given with this safety alert

symbol.

Failure to follow the safety precautions below will result

in death or serious injuries.

Failure to follow the safety precautions below could

result in death or serious injuries.

Failure to follow the safety precautions below may result

in minor or moderate injuries.

Indicates instructions which, if you do not heed given

instructions, could result in damage to the product or

shortened service life, or damage to peripheral

equipment.

Disclaimer and How to Use Instruction

Manual

This product is suitable for gripping a conveyed workpiece by being installed on the robot or

loader. The product is equipped with the jaws to grip the conveyed workpiece and they are

operated by air pressure. For any other applications, please contact us.

Kitagawa Corporation shall not be held liable for human accidents, death, damage, or loss

that occurred due to a failure to follow the safety precautions given in this manual.

This manual does not predict all potential hazards in operation, inspection, and

maintenance under all environmental conditions. There will be an infinite number of matters

that cannot or must not be done, and it is impossible for the manual to cover all of them.

Therefore, the matters, unless otherwise mentioned clearly as “can be done” or “may be

done” in this manual, should be considered as “cannot be done” or “must not be done”.

Please contact us or our agents if you have an uncertainty about safety when you try to

perform operation, inspection, or maintenance not mentioned in this manual.

Warranty and Disclaimer

The product is warranted for one year after the date of delivery.

All parts used shall be those delivered by Kitagawa Corporation. Kitagawa Corporation

shall not be held liable for human accidents, death, damage, or loss that occurred due to

the use of parts which are not genuine parts manufactured by Kitagawa. Also, the use of

parts other than Kitagawa’s genuine parts will void the warranty.

Contents

1. Structural Drawing and Parts List 4

1-1.Model indication

1-2.Structural drawing

1-3.Seal list

1-4.Parts list

2. Important Safety Precautions 7

3. Specifications 11

3-1.Specification table

3-2.Gripping force

4. Use 14

5. Design of Jaws 15

5-1. Designing jaws to be installed on the gripper

6. Installation 16

6-1.Installing the gripper

6-2.Installing the jaws

6-3. Connecting the air piping

6-4.Installing the switches

7. Maintenance and Checking 22

7-1.Periodic checking

7-2.Maintenance interval

7-3.Grease

7-4. Disassembly and assembly procedure

8. Troubleshooting 25

8-1.Problems and countermeasures

8-2.Contact address in case of trouble

9. Others 26

9-1.Standards and directives to which the gripper conforms

9-2.Disposal of gripper

1. Structural Drawing and Parts List

1-1. Model indication

The model indication is as follows:

NPGT 08 S

* For the gripper equipped with the length measuring sensor, see also the separately

provided instruction manual for it.

1-2. Structural drawing

1-3. Seal list

No.

Model

202

203

204

205

209

NPGT08

X-ring X013

X-ring X136

O-ring S55

Seal washer 6S1

NPGT10

X-ring X014

X-ring X146

O-ring S71

Seal washer 6S1

O-ring S11.2

Series

Size

Length measuring

sensor

NPGT

NBR seal

Nil

Not equipped

Equipped

Master jaw

Plunger

Body

Rear cover

Piston

Cover

1-4. Parts list

NPGT08

No.

Parts name

Quantity

No.

Parts name

Quantity

Body

200

Plunger fixing bolt

Rear cover

201

Cover fixing bolt

Plunger L（R）

1（1）

202

Shaft packing

Cover

203

Piston packing

Master jaw L（R）

1（1）

204

O-ring

Piston

205

Seal washer

206

Positioning bushing

207

Setscrew

208

Rear cover fixing bolt

204

202

201

203

207

206

205

200

208

NPGT10

No.

Parts name

Quantity

No.

Parts name

Quantity

Body

200

Plunger fixing bolt

Rear cover

201

Cover fixing bolt

Plunger L（R）

1（1）

202

Shaft packing

Cover

203

Piston packing

Master jaw L（R）

1（1）

204

O-ring

Piston

205

Seal washer

Pipe

206

Positioning bushing

207

Setscrew

208

Rear cover fixing bolt

209

O-ring

204

205

200

202

201

203

207

206

209

208

2. Important Safety Precautions

Important safety precautions that particularly you should know or follow are summarized

below. Please read them before starting to use the product.

DANGER

Failure to follow the safety precautions below will result

in death or serious injuries.

Be sure to turn off the main power supply when installing, checking,

oiling, or replacing the gripper.

Also, shut down the air pressure in the work area.

●During work, the robot or gripper

could move abruptly and collide

with your body.

●After shutting down the air

pressure, release the air

pressure remaining inside the

gripper.

When installing, checking, oiling, or replacing the gripper, post a sign or

notice, or provide a fence, and so on to notify people around the machine

that work is in progress.

●Notify people around the machine that work is in progress and take measures to keep

people other than the operator out of the work area.

Machine motion not predicted by a third party could cause serious danger.

Take safety measures so that the operator is not injured even if the

conveyed workpiece flies out due to the reduced air pressure.

●Observe the legal safety

standards defined by each

country, such as installation of

safeguards or fall prevention

covers.

！

Main power

OFF

Air pressure

DANGER

Failure to follow the safety precautions below will result

in death or serious injuries.

Do not modify the gripper.

●Not only the gripper is damaged

but also the gripper and fixed

workpiece may fly out.

If using the gripper as a workpiece fixture when the workpiece is drilled,

deburred, welded, or modified additionally, confirm the specifications.

●If the gripper is used out of the

specifications, not only the

gripper is damaged but also the

fixed workpiece may fly out.

Be sure to tighten the bolts with the specified torque.

●Lack of bolt quantity or tightening

torque, or excessive torque could

damage the bolt, causing the

gripper or conveyed workpiece to

fly out.

●When tightening the bolts, fix the

gripper so that it will not rotate.

Failure to do so may result in

injury by slipping your hands

when tightening the bolts.

Other than plunger fixing bolt Plunger fixing bolt

Bolt

size

Tightening

torque

Bolt

size

Tightening

torque

1.0

N･m

6.8

N･m

2.0

N･m

12.7

N･m

4.5

N･m

33.3

N･m

7.65

N･m

18.0

N･m

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