00193631-0602.pdf - 第60页

5 Feed axes Adjustment Instructions MTC 2 5.1 Belt tension 12/2007 Edition 60 5.1.4 Checking and setti ng the toothed belt  Carry out the relev ant preparat ory measur es (see section 5.1.2 " Preparatory m easures …

Adjustment Instructions MTC 2 5 Feed axes

12/2007 Edition 5.1 Belt tension

5.1.2 Preparatory measures

 Empty the MTC 2 completely (see the User Manual).

 Undock the MTC 2 from the SIPLACE station (see User Manual).

 Remove both cover plates between the rails of the feed axes.

5.1.3 Checking and setting the drive belt

 Carry out the relevant preparatory measures (see section 5.1.2 "Preparatory measures").

 Measure the belt tension with the belt frequency measuring device in the following way:

 Cause the drive belt to oscillate and measure the frequency in the middle of the sloping sur-

face between the motor axis and the belt wheel (for the measuring point, see Fig. 5.1 - 1,

item 4).

You must set the belt tension if the measured frequency deviation deviates from the nominal

value (120 Hz ± 5 Hz):

 Turn the adjusting screw of the drive belt as far as it will go. Before doing this you will need

to loosen the lock nut.

 Loosen the two clamping screws on the mounting block of the motor.

 Use the adjusting screw to raise the belt tension (by turning in a clockwise direction) or lo-

wer it (by turning in an anticlockwise direction), until the nominal frequency is achieved.

Tighten the lock nuts each time you measure the belt tension.

 Firmly tighten the clamping screws and varnish them with red screw locking varnish.

 Check the belt tension again.

 Secure the cover plates and dock the MTC 2 onto the SIPLACE station (see the User Manual).

 Check the zero offset of the feed axis (see section 5.2.3 "Checking and setting the zero offset")

if you have changed the belt tension.

5 Feed axes Adjustment Instructions MTC 2

5.1 Belt tension 12/2007 Edition

5.1.4 Checking and setting the toothed belt

 Carry out the relevant preparatory measures (see section 5.1.2 "Preparatory measures").

 Measure the belt tension with the belt frequency measuring device in the following way:

 Cause the toothed belt to oscillate and measure the frequency - from the underside of the

belt - in the middle between the outer deflection roll and the first deflection roll of the drive

(for the measuring point, see Fig. 5.1 - 1, item 7). Ensure that the driver is approximately in

its reference position.

You must set the belt tension if the measured frequency deviation deviates from the nominal

value (70 Hz ± 2 Hz):

 Place the open-ended wrench on the setting flats of the eccentric axis.

 Loosen the clamping screw on the eccentric axis and maintain the position of the axis with

the open-ended wrench.

 Raise or lower the belt tension with the open-ended wrench (turning it in a direction depen-

ding on the position of the eccentric axis), until the nominal frequency is achieved. Firmly

tighten the clamping screw each time you measure the belt tension and varnish it with red

screw locking varnish.

 Check the belt tension again and make sure the screws are varnished with red screw lok-

king varnish.

 Secure the cover plates and dock the MTC 2 onto the SIPLACE station (see the User Manual).

 Check the zero offset of the feed axis (see section 5.2.3 "Checking and setting the zero offset")

if you have changed the belt tension.

Adjustment Instructions MTC 2 5 Feed axes

12/2007 Edition 5.2 Zero offset, removal position and transfer position

5.2 Zero offset, removal position and transfer position

NOTE

You must carry out the steps described for checking and calibrating the removal positions

for WTCs 2 - 5 on tower 1 and

for WTCs 2 -4 on tower 2.

The removal position for WTC 1 corresponds to the zero position (zero offset).

WARNING

You may only check and calibrate the positions of the feed axis with the correct zero position and

correct transfer positions of the lifting axis.

5.2.1 Tools and accessories

– Adjustment gauge, WTC

– Adjustment gauge, WTC XL

5.2.2 Preparatory measures

NOTE

The positions must be checked and calibrated with cassettes in the towers. There must be a WTC

in the bottom level of each cassette.

 Set the MTC 2 up completely with empty cassettes (see the User Manual).

 Set up every cassette with an empty WTC in the bottom level.