Drawer Mechanics: Mini-Drawers, Tooling Tilecal upgrade meeting at Valencia (19-21 November 2014) François Vazeille on behalf of Roméo Bonnefoy, François Daudon, Gilles Magaud, Marc Nivoix, Guy Savinel, Pierre Verdier ● Summary of previous progresses ● Concept of Mini-Drawers ● Concept of Handling Tools ● Next activities (?) 1
● Concept of Mini-Drawers - Half length easier handling. 2 - Sliding sides in polyethylene gain factor 2 on sliding. - Tests at CERN in 3 positions, by pulling and by pushing No bad arrangement (Zig-Zag). No blocking. Validation of concept + drawings (including Patch-Panel sizes). Official decision at Stockholm of using trains of 4 Mini-Drawers inside a Super-Drawer (June 2013). Sharing of tasks: - Mini-Drawers: Bucharest. - Services (including mechanical links and cooling): Barcelona. - Tools: Clermont-Ferrand.
● Concept of handling tools Finger cover not perfectly perpendicular to Girder axis. ▪ ATLAS today The 256 Fingers were drilled in order to have reference contacts for the external alignment. ▪ New concept for the Mini-Drawers Alignment tool: Slider on the external side of New Rings large girder-Ring parts Alignment from inside. New Rings inside the Finger. Fixation of the Basket. 3
▪ Several campaigns of tests at CERN versions Slider 3 and Basket 2. Slider at 45° Contacts on 4 rings Adjustment screws Basket in position Insertion of Mini-Drawer 4
Slider-Basket assembly Perfect alignment and easy sliding of the Mini-Drawers. Validation of Slider/Basket concept . 5
▪ Parallel studies made by Barcelona Strongly screwed Alignment on the foam of small Rings. Drawer Strong locking of Basket on the Finger Bad solution: Damages to Rings. Bad alignment. 6
▪ Integration of Barcelona services in Clermont tools? We must think about how is it possible to integrate the Barcelona services … if we go on ? 7
● Next activities (?) ▪ Clermont-Ferrand team has the will of keeping an activity on the mechanics through the handling tools of Mini-Drawers. ▪ He has validated the concepts of Mini-Drawers and Tools A sharing of tasks has been defined. There are ambiguities in their applications and in the use of given information, like: - mechanical dimensions of Drawers and Patch-Panel, - tools and handling procedure. Better contacts in between Institutes and mechanics experts are strongly wished. 8
▪ Clermont-Ferrand will continue providing information on mechanics and the manipulation of Drawers Thanks to his past experience: from the concept of the long Drawers to their certification in the pit. ▪ A Tilecal Note will report the tests and concepts of Mini-Drawers and handling tools. ▪ The team will think about: - How to integrate the Barcelona services in his tooling? - How to establish an handling procedure? ▪ In the upgrade, he could provide all the tools: - 5 Sliders (at least). - 20 Baskets (at least). - and possibly a Super-long basket for specific tests in the pit. and before, some units for the Test Beam (and Bld 175). 9
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