Coin Holder Design

DRAWING 1:

TREE STRUCTURE:

VIEWS:

ISOMETRIC VIEW:

FRONT VIEW:

TOP VIEW:

SIDE VIEW:

DRAFT ANALYSIS:

DRAFT ANALYSIS FOR CLASS A SURFACE:

DRAFT ANALYSIS FOR FINAL COMPONENT:

REPORT:

CREATION OF TOOLING AXIS USING BISECTION METHOD:

• In this case, the tooling direction is considered to be Z-direction as it has the easiest ejection and least complications compared to other directions.
• Initially an axis system is created at the centre of the model. a "Dummy Tooling Axis" is created along the Z-direction of the model.
• Then an "intersection" is created using the "Dummy Tooling Axis" as the first element and the class-A surface which is "FAN COVER" (in this case) , as the second element.
• The intersections are created along X-direction as well as Y-direction for the surface.
• For each intersection,the drafted surfaces are extended to create a bisecting line.
• The "Bisectors" of each intersection are again Bisected with each other to generate the "Tooling axis".

DRAFT ANALYSIS:

From the draft analysis we can observe that most of the surfaces clear the core, but the walls of the pocket are at 0 degrees which may creat problems while ejecting the part since there is no draft angle. this may lead to a mechanical lock between the core and the part surfaces. hence the class a surface should have some draft angle for the allowance of easy ejection.

The hole in the pocket of the part needs to be ejected with a side core tooling. hence the hole also need to have some draft angle.