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Creating Ejector Pin Clearance Holes

Ejector pin clearance holes are created in mold components so that ejector pins can pass through and push the molded part out.
• Ejector pin holes are similar to conventional holes.
– You can specify a different diameter through each intersected component.
• Available types:
– Linear
– Radial
– Coaxial
– On Point
Creating Ejector Pin Clearance Holes

Creating Ejector Pin Clearance Holes 1
Figure 1 – Completed Ejector
Pin Holes

Creating Ejector Pin Clearance Holes 2
Figure 2 – Viewing Ejector Pin
Holes in Core
The ejector pin clearance hole is a hole feature that is only available in Mold mode. Ejector pin clearance holes are created in the mold components so that ejector pins can pass through and push the molded part out. An ejector pin clearance hole is very similar to the conventional hole feature except that you can specify a different diameter through each component that the hole intersects in the mold model. An ejector pin hole is created as an assembly feature in the mold model.
You can create the following types of ejector pin clearance holes:
• Linear — Enables you to create an ejector pin hole on a selected reference, offset linearly from two references.
• Radial — Enables you to create an ejector pin hole on a selected reference, at a radial offset from an axis, and at an angle from a plane. When you specify a radial hole type and select the axis, you can specify the radial offset in the following ways:
– Diameter — Places the hole with a diameter dimension for the offset.
– Radius — Places the hole with a radius dimension for the offset.
– Linear — Places the hole with a linear dimension for the offset.
• Coaxial — Enables you to create an ejector pin hole on a selected reference, through a selected datum axis. If ejector pins are already
assembled in the mold model, then you can use the coaxial hole to easily place the ejector pin clearance holes. You can also use the axes created for the ejector pin pads created in the reference model.
• On Point — Enables you to create an ejector pin hole through a specified datum point. If there are several datum points in the mold model where the holes should be placed, you can simultaneously place holes at each point within the same hole feature.
Once the ejector pin hole type and placement references have been defined, you must specify the following options:
• Direction — Determines the direction of hole creation. You can flip the direction.
• Intersected Parts — Enables you to select the mold components that the ejector clearance hole intersects. The following options are available for determining which components are going to be intersected, or cut, by the ejector pin:
– Auto Update Intrscts — When this check box is selected, the system automatically determines which mold components are cut by the ejector
pin hole feature. All other selection options become grayed out. When this option is used, the automatic intersection excludes the reference
models and any molding.

– Select a component to intersect — Enables you to manually specify which components are cut by the ejector pin hole feature.
– AutoAdd — Similar to the Auto Update Intrscts check box, when this option is selected, the system automatically determines which mold
components are cut by the ejector pin hole feature.
– Info — Enables you to display information regarding the ejector pin hole feature in the browser.
The mold components that are specified display in the Intersected Comps dialog box. To remove any components displayed, you can select the
component and either click Remove, or right-click and select Remove.
• Counterbore — Each ejector pin clearance hole contains a counterbore.
You must also specify the counterbore diameter and depth

Incoming search terms:

  • ejector pin to cyclinder clearances
  • pin hole clearance

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