Guide pin and manufacturing method therefor
AssigneeChaozhou Three-Circle (Group) Co., Ltd.
InventorXueyun Huang
Life of this patent
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Abstract
The present invention discloses a guide pin, which comprises a base support layer (1) and a protective layer (2). The base support layer (1) is a rod-shaped structure. The protective layer (2) tightly wraps the surface of the base support layer (1). A manufacturing method for the guide pin made of various materials is also disclosed. The guide pin manufactured by the method of the present invention is not prone to bending or deformation and has good corrosion resistance and acid/alkaline resistance properties; it is wear resistant and has of extended service life; it is easy to be processed and is low in cost.
Claims8
A guide pin, wherein it comprises a base support layer and a protective layer, the base support layer has a rod-shaped structure, and the protective layer tightly wraps a surface of the base support layer, a thickness ratio of the base support layer to the protective layer is in a range from 4 to 350:1,
- two ends of the guide pin are a fixed end and an insertion end respectively and a middle part of the guide pin is a rod-shaped main body, the fixed end is provided with at least one groove, and the insertion end of the guide pin is a cone frustum,
- a joint of the insertion end and the rod-shaped main body is provided with a first arc chamfer, a second arc chamfer is provided at a position of the base support layer corresponding to the first arc chamfer of the base support layer and the protective layer.
Dependencies are inferred from the claim text.