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Sliding guide post and guide sleeve OR rolling guide post and guide sleeve? Can you tell the difference? What is the difference between sliding guide post and rolling guide post?

2020-12-03 15:27

Sliding guide post and guide sleeve: This kind of guide device has an oil groove in the guide post or guide sleeve to maintain good lubrication. The inner hole d1 of the guide sleeve is matched with the guide post, and adopts or sliding fit. The length l1 of the guide sleeve pressed into the upper bottom plate and the diameter D of the guide sleeve should not be less than 1.5 times the diameter d of the guide post, and the guide length of the guide sleeve should be 2 to 3 times the diameter of the guide post. The diameter d of the guide post can be determined according to the mold structure, the strength and rigidity of the guide post. Generally, the diameter of the guide post d≧30 (mm). The length l of the guide post pressed into the lower base plate shall not be less than 1.5 times the diameter d. The total length L of the guide post is determined according to the closed height of the mold, but it must be ensured that the guide post extends into the guide sleeve 15 (mm) before the punch enters the female mold. ) Above, otherwise it will not play a guiding role.
Rolling guide pin guide sleeve: The guide sleeve of this guide device is equipped with a steel ball retaining ring to ensure accurate guidance. The inner hole d1 of the steel ball retaining ring in the guide sleeve is matched with the guide post. The rolling guide pin and guide sleeve mold base has high guiding accuracy and long service life. It is mainly used for high-precision, long-life precision molds and thin-material blanking molds.

There are two common types of mold guide posts. One type of guide has an oil groove in the guide post to maintain good lubrication. The inner hole of the guide sleeve is matched with the guide post in a sliding form. This kind of guide post is called a sliding guide post. As shown below

There is also a guide pin and guide sleeve. The guide sleeve of the guide device is equipped with a steel ball sleeve holder to ensure accurate guidance. The inner hole of the guide sleeve and the guide post are matched in the form of balls. As shown below

Analyze the sliding guide post from the performance. The length of the guide sleeve pressed into the upper bottom plate and the outer diameter of the guide sleeve shall not be less than 1.5 times the diameter of the guide post, and the guide length of the guide sleeve should be 2 to 3 times the diameter of the guide post. The diameter of the guide post can be determined according to the mold structure, the strength and rigidity of the guide post. The length of the guide post pressed into the lower base plate shall not be less than 1.5 times the diameter of the guide post. The total length L of the guide post is determined by the closing height of the mold, but it must be ensured that the guide post extends into the guide sleeve 15 (mm) before the punch enters the female mold. ) Above, otherwise it will not play a guiding role.

The rolling guide post does not need to consider these things, and the guide precision is higher and the service life is longer. Therefore, rolling guide posts are more commonly used in high-precision, long-life precision molds and thin-material blanking dies than sliding guide posts.

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