Detector structure: Carbon-aluminum composite structures for the TPC
1 Rail_test_system.pptx Aug 12, 2010 version. 2 TPC – Time Projection Chamber (main detector in...
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Transcript of 1 Rail_test_system.pptx Aug 12, 2010 version. 2 TPC – Time Projection Chamber (main detector in...
1
Rail_test_system.pptxAug 12, 2010 version
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TPC – Time Projection Chamber (main detector in STAR)
HFT – Heavy Flavor Tracker SSD – Silicon Strip Detector IST – Inner Silicon Tracker PXL – Pixel Detector (PIXEL)
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rail test system
rail_test_system.SLDASMhttp://www-rnc.lbl.gov/~wieman/container_UTA_7_8_10.zip
8/12/2010this document: http://www-rnc.lbl.gov/~wieman/Rail_test_system.pptx
4
part/file cnfg material source total#
p. ref
grf
1 PIT_glue_plate_to_rail_hanger_free.SLDPRT 6061 UTA 16 3
2 PIT_end_fixture.SLDPRT PIT east end,PIT west end
MIC6, 2in LBL & UTA 1 each 10,11
3 PST_end_fixture.SLDPRT east, west MIC6, 2in LBL & UTA 1 each 11,12
4 IDS_flange_alignment_pin.SLDPRT steel UTA 4 13
5 Tooling ball CL_1_SCB steel CL 8 3
6 Tooling ball MC 8481A34 steel MC 36 3,15,16
7 tee_nut_custom_half_in_slot.SLDPRT 1018 cold rollsteel
UTA 20 14
8 PIT_base_fixture.SLDPRT PIT, PIT mid, PST
MIC6, 2in LBNL 1 each 14
9
10 PIT_fixture_flex_lever.SLDPRT 6061 UTA 4 3
11 PIT_hole_fixture_end_addapter.SLDPRT 6061 UTA 1 3
12 PIT_hole_fixture_end_addapter_mirrored.SLDPRT 6061 UTA 1 3
13 dowel pin 0.125 X .375 in, MC 98381A470 steel MC 4
14 PIT_hole_fixture_beam.SLDPRT 6061 UTA 1
parts list for assembly: rail_test_system.SLDASM
5
part/file cnfg material source total#
p. ref
grph
15 kin_cross_support.SLDPRT 6061 UTA 3 15,37
16 grand_master.SLDPRT 6061 LBL 1 15,16,17
17 ¼ in steel ball, precision steel 18
18 shoulder screw, MC 90298A535 steel MC 6
19 spring 6 lb, MC 9435K78 steel MC 6
20 shoulder screw, 10-24, 5/8 in, MC 90298A39 steel MC 3
21 spring 9 lb, MC9432K79 steel MC 3
22 butch_plate_single.SLDPRT 6061? UTA 18
23 grand_master_support_plate.SLDPRT MIC6 UTA 1 19
24 dowel_pin_MC98381A471.SLDPRT steel MC 2
parts list for assembly: rail_test_system.SLDASM
6PIT_rail_20mm_assembly.SLDASM (on test)
7
part/file cnfg material source total#
p. ref
grph
25 PIT_rail_20mm.SLDPRT east v2 CF LBNL 4 21,22
26 PIT_rail_20mm.SLDPRT main v2 CF LBNL 12 21,22
27 PIT_rail_coupler_20mm_v2.SLDPRT 6061 UTA 8 23,24,28
28 PIT_rail_arm_20mm_v2.SLDPRT 6061 UTA 8 23,24,27
29 PIT_rail_arm_achor_post_v2.SLDPRT 6061 UTA 8 21,24,26
30 PIT_rail_hanger_ext_v3.SLDPRT 6061 UTA 4 24,25
31 PIT_rail_hnaager_ext_mirror_v3.SLDPRT 6061 UTA 4 24,25
32 socket head cap screw 8-32 x 1 in aluminum FE 32 19
33 rail_mount_dowel_pin.SLDPRT long 6061 UTA 16 24
34 cylinder_nut.SLDPRT 6061 UTA 32 24
35 cam_rail_TR_1.SLDPRT 6061 UTA 2 21,29,30
36 cam_rail_TR_2.SLDPRT 6061 UTA 2 21,29,30
37 cam_rail_TR_3.SLDPRT 6061 UTA 2 21,29,30
parts list for subassembly: PIT_rail_20mm_assembly.SLDASM (on test)
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part/file cnfg material source tot#
p. ref
grph
38 socket head cap screw 8-32 x .375 in aluminum FE 48
39 shoulder screw 8-32 MC 95446A220 brass MC 24
40 rail_holder_sq_bar.SLDPRT CF LBNL 2 6
41 rail_holder.SLDPRT ring on bearing 6061 UTA 4 35,36
42 rail_holder.SLDPRT ring on insert plus west end connection
6061 UTA 2 32,34
43 linear bearing liner Pacific Bearing FMN20 PB 24 35
44 Retain_ext_modified_MC98541A139.SLDPRT steel MC/LBNL 40 35
45 set screw dog MC 92505A191 steel MC 20 35
46 bullet nose diamond pin MC 31335A31 steel MC 6
47 bullet nose aligning pin MC 31335A11 steel MC 6
48 bullet nose liner MC 31335A51 steel MC 8
49 liner_MC_31445A116.SLDPRT steel MC 4
50 rail_holder_west_strap.SLDPRT MIC6 UA 2 33
parts list for subassembly: PIT_rail_20mm_assembly.SLDASM (on test)
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details for rail_test_system.SLDASM
pages 8-14
tolerances: ±0.25 mm unless specified
10PIT_end_fixture.SLDPRT (PIT east end) PIT_end_fixture.SLDPRT (PIT west end)
westside
westside
eastside
eastside
LBNL water jet from2 in MIC6
leave ¼ in on outer edges and round hole to be machined off
cut lightning holes on model line
after water jetting these parts will be sent to UTA for final machining
11PIT_end_fixture.SLDPRT (PIT west end)
ref surfaces
tooling ball location tolerance on front and back side: ±0.025 mm
diameter tolerance:+.013 mmslip fit for Brunson adapter
surface location tolerance:±.050 mmsets SSD location and probably sets glue bond thickness 1 of 6
location tolerance:0.050 mmsets SSD location
width tolerance:+.025 mm - .00 mmslip fit 1/8 in pin
hole position tolerance:.05 mm
hole diameter tolerance:0.05 mm
sideways hole position tolerance:±.05 mm
press fit for 1/8 in dowel pin.hole diameter tolerance:-0.013 mm
hole position tolerance:±0.05 mm
hole diameter tolerance:-0.013 mmpress fit for bullet/diamond pin liners
hole position tolerance:±.025 mm
hole diameter tolerance:+0.013 mm for slip fit on¼ in pin
tolerances on (PIT east end) configuration the same where applicable
12
PST_end_fixture.SLDPRT (east) west configuration similar, but fewer holes
tolerances for both configurations the same as PIT_end_fixture.SLDPRT where applicable , see previous page
ref surfaces
water jet at LBNLmachining at UTA
LBNL water jet from2 in MIC6
leave ¼ in on edges and round hole to be machined away
cut lightning holes on model line
http://www-rnc.lbl.gov/~wieman/container_UTA_7_8_10.zip
these parts are in PST_trans_v2.SLDASM which is now included in
13
IDS_flange_alignment_pin.SLDPRT
both diameter tolerances: -0.013mmfor slip fits
14PIT_base_fixture.SLDPRT (PIT, PIT mid, PST)
plane and parallel to ±0.05 mmlength tolerance: ±0.05 mm
sideways position tolerance ±0.05 mm
slip fit for 1/8 dowel pinwidth tolerance: +0.013 mm
water jet OK for lightning holes and all non specified edges
water jet and machine at LBNL
tolerances the same for all three configurations
15grand_master_kin_assembly.SLDASM
16
this plane perpendicularto a ref cylinder axis
line betweenholes centered onref cylinder axis to ±0.05 mm
separation tolerance±0.05 mm or match drilledwith butch_plate_single.SLDPRT
diameter tolerance:+0.000 mm-0.013 mmfor bullet insert press fit
this and other 2 similar planestolerances to chord and axisof ref cylinder: ±0.05 mm
±0.05 mm tolerances are to preserve glue bond thicknesses
these and other similar holesdiameter tolerance:-0.013 mmfor press fit with tooling balls,glue in OK if ends up sloppy
grand_master.SLDPRT
17grand_master.SLDPRT
separation tolerance:±.25 mm or match drill with grand_master_support_plate.SLDPRT
diameter tolerance:±0.125 mm for slip fit
18butch_plate_single.SLDPRT
surfaces parallel to 0.05 mm
hole position tolerance with respect to each other: ±0.05 mm
can be match drilled to appropriate parts
diameter tolerance: +.000 - .013 mm for press fit with bullet liners
19
position tolerance:±.25 mm or match drill with grand_master.SLDPRTdiameter tolerance:+0 -.013 mm forpress fit with 1/8 inch dowel pin per McMaster Carr recommendation for their pin
grand_master_support_plate.SLDPRT
mill top face onlyfrom ½” stockslightly less than 1/2” thick plate no problem
20
details for sub assembly PIT_rail_20mm_assembly.SLDASM (on test)
pages 21-36
tolerances: ±0.25 mm unless specified
21PIT_rail_20mm_single_v2.SLDASM
file config material quant. imagePIT_rail_20mm_single_v2.SLDASM PIT test TN 2PIT_rail_20mm_single_v2.SLDASM PIT test TS 2
22
file config material quantity image
PIT_rail_20mm.SLDPRT east v2 CF 4
PIT_rail_20mm.SLDPRT main v2 CF 12
toleranceOD +0-50mID +50-0m
23
file config material quant. imagePIT_rail_mount_20mm_v2.SLDASM tester normal 8PIT_rail_mount_20mm_v2.SLDASM tester mirror 8
24PIT_rail_mount_20mm_v2.SLDASM ( tester normal)
8-32 x 1 in aluminum cap screwsvender: Fastner-express.com
PIT_rail_arm_anchor_post_v2.SLDPRTPIT_rail_hanger_ext_v3.SLDPRT
rail_mount_dowel_pin.SLDPRT (long)
PIT_rail_arm_20mm_v2.SLDPRT cylinder_nut.SLDPRT
PIT_rail_coupler_20mm_v2.SLDPRT
25
file config material quant. imagePIT_rail_hanger_ext_v3.SLDPRT MCC 88805K64 8PIT_rail_hanger_ext_mirror_v3.SLDPRT MCC 88805K64 8
fillet not important, remove sharp edges
diam +.05mm - 0
#8-32 tap all small holes
26
diam +0mm – 0.013mm press fit with 1/8 in dowel pin
file config material quant. imagePIT_rail_arm_anchor_post_v2.SLDPRT 6061 16
#8-32 tap one hole
diam +0-0.05 mm
27
#8-32 tap 4 holes
diameter tolerance +.025-0 mmslip fit 1/8 in pin
surface to cyl. surface tolerance .05 mm (controls glue bond thickness)
PIT_rail_arm_20mm_v2.SLDPRT
28
file config material quant. imagePIT_rail_coupler_20mm.SLDPRT 6061 16
diameter tolerance:+0-.2 mmaffects rail position
diameter tolerance:±.05mmaffects glue bond
29
file config material quant. imagecam_rail_TR_1.SLDPRT v2 6061 1cam_rail_TR_2.SLDPRT v2 6061 1cam_rail_TR_3.SLDPRT v2 6061 1
thickness tolerance ± 0.13 mmfor the 3 pieces
30
file config material quant. imagecam_rail_TL_1_v2.SLDPRT v2 6061 1cam_rail_TL_2_v2.SLDPRT v2 6061 1cam_rail_TL_3_v2.SLDPRT v2 6061 1
thickness tolerance ± 0.13 mmfor the 3 pieces
31
each guide rail has one end fixed and one end sliding lengthwise
detail from PIT_rail_20mm_single_v2.SLDASM
part config material quant. image8-32 x .375 in aluminum socket headvender: Fastner-express.com aluminum 32 total
8-32 shoulder head MC 95446A220 brass 32 total
32
file config material quant. imagerail_holder_termination_assembly.SLDASM 2
33
file config material quant. imagerail_holder_strap_assembly.SLDASM 2rail_holder_west_strap.SLDPRT 6061 2
tolerance of relative position of inner holes to each other ± .025 mm (controls glue bond thickness, and must match bullet pins on other parts)inner hole diameter tolerance +0-.013 mm (press fit for bullet nose liners)
make from .5” x 2” barback side and long edgesnot machined, will change modelto be 2 in wide
34
file config material
quant. image
rail_holder.SLDPRT ring on insert plus west end connection
6061 2
bullet nose (McMaster 31335A11) 1 perdiamond nose (McMaster 31335A31) 1 per
tolerance 4 outer edges ± 0.025 mm ( controls glue bond thickness and limits slider binding)
tolerance inner hole position ± 0.025 mmtolerance inner hole diameter +0-.013mm (press fit nose bushings)
35
file config material
quant. image
rail_holder.SLDASM 4Retain_ext_modified_MC98541A139.SLDPRT 8 perrail_holder.SLDPRT ring on bearing 6061 1 perlinear bearing liner, Pacific bearing FMN20 4 perset screw dog 8-32 McMaster 92505A191 steel 4 per
MC master-Carr part number98541A139with one ear ground off and hot glued to prevent rotation. Two retainers on each bearing liner
tolerances on this part, see next page
36
file config material
quant. image
rail_holder.SLDPRT ring on bearing 6061 4
tolerance on 4 outer edges and centers of 4 open circles ± .050 mm ( controls rail positions, must avoid slider binding)
diameter tolerance of 4 open circles +0.025 mm-0(fit bearing liners without forcing)
37
kin_cross_support.SLDPRT
All fillets and chamfers shown in the model can be eliminated, deburring is sufficient
Fillet from endmill radius OK
These 6 holes will have balls glued in. The holes are slightly oversize for a glue bond and a vent hole has been added so that the balls will not piston out due to a trapped air bubbles.These devices are designed for reproducibility of placement. Precision is not so important as long as the location of the three parts in the grandmaster_kin_assembly.SLDASM are not interchanged. These 3 parts and their positions will be labled.
38
References:
MC http://www.mcmaster.com/FE http://www.fastener-express.com/PB http://www.pacific-bearing.com/CL http://www.carrlane.com/