The end cover of aluminum alloy belt gear box is an important part of small and micro low-speed motors. Its die-casting technology has eliminated the problem of deficient processing at the machining center

significantly improving productivity. A mold configuration with simple structure

reliable performance and the desirable parting surface was presented. Its side gate feeding design is benefitcial to both casting and removal of waste materials from the gate. Aiming at the irregular shape of the end cover casting and the dual-orthogonal bearing hole contained

it is need to accurately cutting to achieve highly-matched spigot and base

and bearing chamber and the bearing. A set of milling fixtures was presented of accurately positioning

reliable clamping without deformation

high turnover precision

concise and rational structure

and easy and convenient operation.