Miller Welding Gebruikershandleiding - Pagina 17

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IMPORTANT: The robot program must be changed to

accommodate plasma arc welding. The program is fac-

tory set to accommodate factory installed plasma arc

welding equipment. The following information pertains

to the robot Owner's Manual and must be followed when

field installing plasma arc welding equipment.

WARNING: ELECTRIC SHOCK can kill.

Do not touch live electrical parts.

Shut down robot and welding power source,

and disconnect input power employing lock-

out/tagging procedures before inspecting or

installing.

Lockout/tagging procedures consist of pad-

locking line disconnect switch in open position,

removing fuses from fuse box, or shutting off

and red-tagging circuit breaker or other discon-

necting device.

4-1.

SETTING UP PLASMA (NON-STANDARD)

TORCH FOR MRH

It is necessary to use the robot Owner's Manual in addi-

tion to this manual to complete the proper installation of

the torch.

IMPORTANT: Follow entire procedure in presented or-

der.

Check System Data settings against the test

sheet supplied with the unit. These should match

before beginning installation.

Mount plasma arc welding torch according to

Section 3-3 of this manual. Make sure that sup-

plied brass tip gauge and holder have been

installed on torch.

Do tool center point adjustment according to Sec-

tion 4.6 of the robot Owner's Manual.

The universal J-bar is included to record exact

torch position so that it is possible to recover posi-

tion in case of a robot crash. Install universal J-

bar as follows:

a. Remove 2 screws and cover plate from bottom

of Axis 5 gear housing.

b. Install universal J-bar onto Axis 5 by aligning in-

dex pin with hole in housing, and securing with

supplied screws.

SECTION 4 – ROBOT PROGRAM MODIFICATIONS

ROBOT (Figure 4-1)

Indexing Pin

Scribe Marks

Scribe marks where

torch tip touches

lower bar.

Lower Bar

Figure 4-1. Scribe Marks on Universal J-Bar

Position lower bar of universal J-bar so that it

touches torch tip gauge, and scribe marks on the

J-bar to indicate exact torch position as shown in

Figure 4-1.

Remove universal J-bar, and retain for future use.

4-2.

SETTING UP PLASMA TORCH FOR MRV

ROBOT (Figure 4-1)

The plasma torch does not require any changes to data

in PARMTER/SYSTEM/TOOL PARAMETER. The stan-

dard I-bar is used for adjusting torch position and for

position recovery after a robot crash. Mount plasma arc

welding torch, install tip gauge, and follow mounting ad-

justment procedures according to instructions in Sec-

tion 4 – System Set Up in the robot Owner's Manual.

Loosen torch clamp setscrews and position torch so that

tip gauge touches I-bar reference point. Retighten set-

screw.

After completing torch adjustment procedure, remove

tip gauge and reinstall cup onto end of torch.

4-3.

MARKING POSITION OF TORCH HEAD AS-

SEMBLY (Figure 4-2)

When the mounting adjustment procedure is complete,

place scribe marks on the torch head assembly and

sleeve to mark the torch head assembly position for fu-

ture alignment adjustments.

Attaches To Bottom

Of Axis 5 Housing

Rod

Scribe around rod below

lower bar to record height.

Tighten screw and setscrew

when torch tip is touching

lower bar.

Screw

Setscrew

ST-146 220

OM-169 510 Page 13