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Positioning fork

Positioning fork. M. Ciappeti R. Vuillermet. IBL package kinematic scheme with services. Side A. IP. Signal, clock. Cables and cooling pipe sliding / ring . HV, LV, DCS. Pulling cables for insertion/extraction of the IBL Package inside IST. Cooling pipes. Z-stopper mechanism.

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Positioning fork

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  1. Positioning fork M. Ciappeti R. Vuillermet

  2. IBL package kinematic scheme with services Side A IP Signal, clock Cables and cooling pipe sliding / ring HV, LV, DCS Pulling cables for insertion/extraction of the IBL Package inside IST Cooling pipes Z-stopper mechanism ID end Plate PP0 board support Sealing ring with soft interface Flex connectors PP1 Cooling pipe Fitting Cables connectors PP0 Cooling pipe bushing Beam Pipe supports same interface as current beam pipe

  3. Beam pipe + IST Side C See next slide Side A

  4. Beam pipe detail I.P. See next slide Side C Side A Positioning fork

  5. Positioning fork + pin + IST IST IST pin Side C Side A Positioning fork

  6. Positioning fork + pin IST pin Side C Side A Positioning fork

  7. Positioning fork Side C Side A Positioning fork

  8. Positioning fork See next slide Side C Side A Positioning fork

  9. Positioning fork Side C Side A

  10. Positioning fork

  11. 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

  12. 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

  13. 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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