Supplementary File 2.doc

DESIGN CALCULATION FOR COMBINATION FIXTURE

1. CENTER PLATE:

It is position by centre point of base plate. It’s used for fixture multi-seating plate changed one by one seating period on both side every components locating for centre plate at the centre point 

Height of the plate : h = maximum diameter of component + lower clearance valve + upper clearance valve h = 223mm + 25mm + 20mm = 268mm.

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Width of the plate : b = maximum diameter of component + 2* clearance valve = 223mm + 2*35 = 299mm.

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Thickness of the plate : t = two side seating plate undercut depth + centre gap between seating plate depth = 2*6 + 12 = 24mm.

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Seating size arrangement of centre plate : Minimum diameter of the component due to run directly on fixture. So, minimum diameter of component = 122mm.

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Working of the plate : 

seating plate arrangement in centre plate a) M6 thru tap 3no’s equal spaced on PCD 155 mm