Introduction to Titanium Standard Parts Manufacturers: What is a cylindrical positioning pin?

Release time：2023-10-26 17:47:09 丨 Number of visits：

A cylindrical positioning pin, also known as a spring pin, is a hollow cylindrical body without a head, with axial grooves and chamfers at the ends of both ends, used for positioning, connecting, and fixing between parts; This type of pin has good elasticity and shear resistance, and its outer diameter is slightly larger than the assembly aperture.

Characteristics of cylindrical positioning pins:

1. Column positioning pins have the characteristics of simple structure, good alignment, high load-bearing capacity, and good resistance to variable loads and impacts. However, cylindrical positioning pins require high machining accuracy of the mating surface.

2. The cylindrical positioning pin has a high disassembly force and can scratch the mating surface, making it a non detachable connection. When the interference is not large or when hydraulic assembly and disassembly are used, the connection is also detachable.

Applicable occasions for cylindrical positioning pins

The manufacturer of titanium standard parts stated that cylindrical positioning pins are suitable for positioning and can also be used for connection. Different fitting requirements allow for the same selection of diameters with different tolerance requirements; The pin hole needs to be reamed, and multiple disassembly and assembly will reduce the positioning accuracy and connection tightness of the pin, which can only be used to transmit small loads. The internal thread of the cylindrical positioning pin with internal thread is convenient for disassembly and use. The positioning accuracy of threaded cylindrical positioning pins is relatively low, and they are often used in situations with low accuracy requirements.

Elastic cylindrical positioning pins have elasticity and are tightly pressed against the hole wall after being installed into the pin hole, making them less likely to loosen. They have low requirements for the accuracy of the pin hole, and interchangeable holes can be disassembled multiple times with poor rigidity, making them unsuitable for high-precision positioning. They are suitable for situations with impact and vibration, and can replace some cotter pins, cylindrical positioning pins, pin shafts, or conical pins. The perforated pin and pin shaft can be locked separately with a split pin, making disassembly convenient and suitable for hinges.