NS1209M01_0

TOKINARC
Tungsten Changer
for Robotic TIG Torches(TA-200CDA, TA-301CDW, TA-500CDW)

Instruction Manual

Table of Contents
1.

Confirmation of Included Items

2.

Applicable Robotic TIG Torch for Tungsten Changer

3.

Tungsten Changer Setup

4.

How to Use

5.

Tungsten

ChangerParts

List(TA-200CDA,TA-Changer

Dimensions(TA-200CDA,TA-301CDW)
6.

Tungsten
301CDW)

7.

Tungsten Changer Parts List (TA-500CDW)

8.

Tungsten Changer Dimension (TA-500CDW)TOKIN CORPORATION.

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NS1209M01_0

1.

Confirmation of Included Items(1): Tungsten changer unit
1 set(2): Tungsten projection length adjusting tool
1 set(3): Tungsten collection box
1(4): Confirmation switch
1
Please confirm whether all the above mentioned items are included.

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2.

Applicable Robotic TIG Torch for Tungsten Changer

Applicable robotic TIG torch for tungsten changer has a special built in double lift
air cylinder that clips on and clamps the tungsten by air compression through thecylinder operation.
When the air is supplied from the pushing side, the internal shaft moves forward
and the collet is pressed into the collet body to clamp the tungsten with the collet.
When the tungsten is exchanged and the projection length is adjusted, air issupplied to the retracting side and the shaft is moved back to unclamp the tungsten.
Even when no air is supplied (in neutral state), the shaft is pushed forward by thebuilt-in spring and so, the tungsten cannot fall, and cannot be welded.
While welding, always supply air and confirm whether the tungsten is clamped
properly before starting.
Solenoid valve for torch cylinder

TIG torch connection
φ6 air hose (accessory)

Air (φ6 air hose)

Robot controller* Ask the customer to arrange for a solenoid valve.
Use the above mentioned solenoid valve or another make of the same quality.

2

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Signal wire connection position for short circuit detection
TA-200CDA

Short circuit detection wire fitting bolt (M4)TA-301CDW

Short circuit detection wire fitting bolt (M8)TA-500CDW

Short circuit detection wire fitting bolt (M8)3

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3.

Tungsten Changer Setup

1. Install the tungsten changer.

2. Fit a push in fitting and air hose to the parallel opening-closing type air chuck.

4

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3. Install the confirmation switch.

Use the hexagon socket bold (M4) attached on the back of the tungsten changer
to fix the confirmation switch.

5

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4. Connect the wire of the solenoid valve for the tungsten removing chuck and of theswitch for confirmation.

Confirmation switch

Tungsten changer

Robot controller

Tungstencollection box

Solenoid

valvefor

opening-closing

thetungsten

removing chuck

Solenoid

For air chuck opening-closing
Confirmation switch

valvefor

opening-closing

tungsten removing chuck

6

theConfirmation switchTOKINARC
5. Connect the short circuit detection wire.
The neutral state occurs when air is not supplied for both clamping andunclamping and the collet is pushed by the force of the spring to clamp thetungsten.
In this state, if the tungsten projection length is adjusted, the collet will rub
against the tungsten and may get damaged.
Unclamp the tungsten before adjusting the projection length.
Short circuit detection wire cable size: 2SQ/M4

Built-inaircylinderTIG torch

Robot controller
TungstenTungsten leveling mountInsulation Plate

Tungsten changer unit

*Tungsten projection length leveling mount is insulated by insulation plate. Always
maintain the insulation status by cleaning etc.
See that conduction in the detection line on the TIG torch side takes place only forshort circuit detection and it is shutoff while welding.

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4.

How to Use

1. Tungsten exchange method*Numbers noted in circles, please refer to page 10.
*Numbers noted in parentheses, please refer to page 12, 14.

① Open the "Tungsten removing chuck (11)".
② Move the torch to the tungsten removing position and Close the "Tungsten
removing chuck (11)".
Confirm that the claws of the "Tungsten removing chuck (11)" are clamping
the tungsten tightly, and "unclamp" the torch side chuck.
③ Pull up the torch till the tungsten can be removed completely.
④ Open the "Tungsten removing chuck (11)" and drop the used tungsten in the"Tungsten collecting box (7)".
⑤ Use the "Confirmation switch (9)" to confirm that the torch does not retain thetungsten.
⑥ While the torch side chuck is unclamped, move the torch to clamp newtungsten which is on "Electrode plate (2)"till it can be grasped, and clampthe torch side chuck to clamp the tungsten.
⑦ Move up the torch to where the tungsten can be completely removed fromthe "Electrode plate (2)".
⑧ Use the "Confirmation switch (9)" to confirm that the torch retains thetungsten.
⑨ Move the torch on top of the "Tungsten leveling mount (4)", unclamp thetorch side chuck and bring it down towards the "Tungsten leveling mount(4)". At this time, the tungsten will get detached from the torch if the chuck
is too high to unclamp and the tungsten is short. See that the position for
unclamping the torch side chuck is suitable when the tungsten is short.
* Before the torch side chuck reaches the unclamping position, set the chuck to
the neutral state without fail.
When using a short circuit signal in flow chart A, set the chuck on the torchside to neutral and move the torch near the "Tungsten leveling mount (4)".
When there is a short circuit between the tungsten end and the "Tungsten
leveling mount (4)", "unclamp" the torch side chuck.
⑩ Clamp the torch side chuck in the most suitable area of the tungsten
projection length.

8TOKINARC<Treatment of the rear end part of tungsten>"Remove the tungsten identification paint" and "chamfer the rear end part of thetungsten" to ensure that the electrode is exchanged smoothly.
New tungsten

After treatment

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Short circuit position A10

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2. Tungsten exchange flow chart (example)
TorchStatus
TorchChuck

START

Clamp

Tungsten changer

TungstenRemoval chuckYes(with) or No(without)Yes

OPENOPEN↓
CLOSE

Retry

Removal position

Clamp↓
Unclamp

Yes

Removal position topUnclamp

NoCLOSE↓OPENUnclamp

NoOPENChuck position

Unclamp↓Clamp

YesOPEN

Chuck position top

Clamp

Yes

OPENClamp

Yes

OPENUnclamp
orNeutral

Yes

OPEN

Yes

NoNo

RetryNoA

Yes
Yes

Projection length adjustment position top

Short circuitposition

When a short circuit detection signal is used
Unclamp

Projection length adjustment position

Unclamp↓Clamp

END
11Yes

OPEN

Yes

OPEN

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5.

Tungsten Changer Parts List (TA-200CDA, TA-301CDW)

Tungsten changer
Name

Material

Count

(1)

Tungsten changer base plate

SS4001(2)Electrode plate

AL2Article
For TA-200CDA
TA-301CDW(3)Resin color

Polyacetal

20
For used tungsten diameter(4)

Tungsten leveling mount

SS400

1(5)

Insulation plate

Phenolic

1resin(6)

ClawS50C

1(7)Tungsten collection box

SPC 1.2t

1

For used tungsten diameter* If you want to purchase parts (3) and (6), let us know the diameter of the tungsten
you are using.
Purchased parts
Name

Manufacturer

Count

Model Number(8)Ball plunger

MISUMI20

SPJH6(9)Confirmation switch

OMRON

1

Z-15GNJ55-B(10)

Solenoid valve

SMC

1

SY3220-5LZ-C6-F2

(11)

Chuck

SMC

1

MHZ2-16D2-M9PVSL

Tungsten insertion jigName
1MaterialHolderSS40DCountRemarks

1

Purchased parts
Name

Manufacturer

Count

Model Number

2

Resin color

MISUMI1

CLJJ4-12-40

3Adjusting bolt

MISUMI

1USS8-25

Tungsten insertion jig parts structure
31212TOKINARC

6.

Tungsten

Changer

Dimensions

301CDW)

13(TA-200CDA,

TA-TOKINARC

7.

Tungsten Changer Parts List (TA-500CDW)

Tungsten changer
Name

MaterialCountArticle(1)

Tungsten changer base plate

SS400

1(2)

Electrode plate

AL

2

For TA-500CDW(3)Resin color

Polyacetal

16

For used tungsten diameter(4)

Tungsten leveling mount

SS4001(5)Insulation plate

Phenolic

1resin(6)ClawS50C

1(7)Tungsten collection box

SPC 1.2t

1

For used tungsten diameter* If you want to purchase parts (3) and (6), let us know the diameter of the tungsten
you are using.
Purchased parts
Name

Manufacturer

Count

Model Number(8)

Ball plunger

MISUMI

16

SPJH6

(9)

Confirmation switch

OMRON

1

Z-15GNJ55-B(10)

Solenoid valve

SMC

1

SY3220-5LZ-C6-F2(11)

Chuck

SMC

1

MHZ2-16D2-M9PVSL

Tungsten insertion jig
Name
1

Material

Holder

SS40DCountRemarks

1

Purchased partsNameManufacturer

Count

Model Number

2Resin color

MISUMI1

CLJJ4-12-40

3Adjusting bolt

MISUMI

1USS8-25

Tungsten insertion jig parts structure
31214

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8.

Electrode Exchange Device Dimension (TA-500CDW)

15

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Tungsten Changer
September 6, 2012

Ver 1.0

Version 1 issued

January 17, 2014

Ver 2.0

Version 2 issued

Contact details
TOKIN CORPORATION.
〒432-8006

1509 Okubo-cho, Nishi-ku, Hamamatsu-shi,
Shizuoka-ken, Japan(Inside the Hamamatsu Technological Park Association)

TEL +81-53-485-5252 (representative)
URL: http://www.tokinarc.co.jp/
E-mail: trading@tokinarc.co.jp

16FAX+81-53-485-5680