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What is the use of the mold positioning pin?


First, the definition of the mold positioning pin
The mold positioning pin uses the workpiece hole as a positioning reference to participate in the part that limits the degree of freedom of the object, and controls the linear motion of the article in the three axial directions of X, Y, and Z, and the six freedoms of the rotational motion around X, Y, and Z. Degree of exercise. In a mold composed of two or more parts, a pin designed to accurately position two adjacent portions of the mold.
Second, the standard of mold positioning pin
Mold positioning pin is a standard part
Cylindrical pin: GB/T119.1-2000 GB/T119.2-2000
Internal threaded cylindrical pin: GB/T120.1-2000 GB/T120.2-2000
Tapered pin: GB/T117-2000
Third, the classification of mold positioning pins
Fixed mold positioning pin
2. Replaceable mold positioning pin
3. Cone mold positioning pin
4. Flanged die positioning pin
5. Standard diamond mold positioning pin
Fourth, the use of mold positioning pins
The role of the mold positioning pin is to limit the free movement of the item.
Linear motion, and rotational motion around X, Y, Z. Degree of freedom: When an object is in space, there must be six degrees of freedom, X, Y, and Z.
In a mold composed of two or more parts, a pin designed to accurately position two adjacent portions of the mold.

In the spindle positioning, 1) mechanical cam mechanism (2) photoelectric plate mode for coarse positioning, then a hydraulic or pneumatic mold positioning pin is inserted into the pin hole or pin groove on the spindle to achieve precise positioning, and the mold positioning after the tool change is completed. When the pin exits, the spindle begins to rotate.



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