15-year precision mould making

     Common cylindrical mold parts with the guide pillar, the die shank and the ejector pin.
     1. Guide pillar processing
     Guide pillar plays a guiding role in the mold, and ensure the convex die and the concave die in the work with the correct relative position, ensure the active portion of the mold can be smooth movement, no blocking phenomenon.
     The basic structure of the guide pillar: the surface of the revolving body.
     Material: hot rolled bar.
     Processing technological process: cutting stock→rough machining→semi finishing→ heat treatment→finishing→polishing.
     The positioning of the guide pillar in the processing. According to the principle of reference, the center hole is positioned. Fixed center hole method: grinding and extrusion, etc.. Grinding center hole with conical grinding wheel on lathe. Using the cone cast iron grinding head grinding center hole, can ensure the concentricity of less than 0.002mm.

     2. Processing of the die shank and the ejector pin mould parts
     Type of die holder type: Press in type, screw type, flange type shank, groove shaped mold, floating die, etc..
     The main structure of the die shank and the ejector pin is the shape of the stepped shaft.
     The center hole is used as the base of semi-finishing and finishing, and the final machining process is precision grinding.