positioning fork m. ciappeti r. vuillermet 29/09/20111

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Positioning fork

M. CiappetiR. Vuillermet

29/09/2011

29/09/2011

Cooling pipes

HV, LV, DCS

Signal, clock

PP0 Cooling pipe bushing

Flex connectors

PP1 Cooling pipe Fitting

Cables connectors

Cables and cooling pipe sliding / ring

Side A IP

Beam Pipe supports same interface as current beam pipe

Sealing ring with soft interface

Pulling cables for insertion/extraction of the IBL Package inside

IST

ID e

nd

Pla

te

IBL package kinematic scheme with services

2

PP0 board support

Z-stopper mechanism

3

Beam pipe + IST

See next slide

Side A

Side C

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Beam pipe detail

Side A

Side C

I.P.

See next slide

Positioning fork

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Positioning fork + pin + IST

Side A

Side C

Positioning fork

IST pin

IST

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Positioning fork + pin

Side A

Side C

Positioning fork

IST pin

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Positioning fork

Side A

Side C

Positioning fork

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Positioning fork

Positioning fork

Side ASide C

See next slide

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Positioning fork

Side ASide C29/09/2011

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Positioning fork

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Purpose of the Z stopper

• Function of the Z stropper– Position along Z the IBL package respect to the IST– Guaranty that once engaged, the package can not extract– But is shall allow disengagement for the extraction

process– Orientate angularly the package

• Constrain in the design– Limited space to position this Z stopper – Made out of material

• with low X/Xo• Can withstand activation of the area• With high enough elasticity

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IBL package characteristics

• IBL package weight : – about 20kg (to be re-evaluated)

• Friction coefficient between IBL package and IST : – to be measured (this operation can be done at

cern as we have IST with some peek interfaces

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Work to be done• Step 1

– Fabricate a prototype out of a titanium plate (1.5mm)– Fabricate a test bench to measure insertion/extraction force– Test :

• Measure the insertion/extraction force• Evaluate if the extraction with cables are helpful

– Loop on the design to modify geometrical parameters• Step 2

– Fabricate a second prototype out of a titanium plate– Test :

• Measure the insertion/extraction force

– Loop on the design to modify geometrical parameters• • • Step n

– Make a prototype out of a titanium block– Test :

• Measure the insertion/extraction force• Validate the design

• Install this block on the integration mock-up at CERN– Validate integration– Validate the positioning precision– Validate the insertion/extraction force

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