1. Inject molding mold custom processing workpiece is located with a flat positioning

The number of freedom limit according to the plane is divided into three types:

The main support surface limit the three freedom positioning planes of the workpiece, which is often used in the surface of the workpiece with higher accuracy.

The positioning plane of the two freedoms of the inheritance of the supporting support surface is often made into a narrow -length surface.

The tolerance of the push branch restricts a degree of freedom. In order to ensure that the positioning is accurate, the plane area is often as small as possible.

2. Injection molding mold custom processing workpiece is positioned with round holes

Long -term sales restricted 4 degrees of freedom, short sales limit 2 freedom.

3. Injection molding mold custom processing workpiece beyond cylindrical positioning

The positioning benchmark is the center line of the outer circle. Three categories of commonly used

Positioning set: Realize the perseverance and positioning support board: positioning the outer circle

V -shaped block: realize the surface of the outer circle, positioning and positioning