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Do You Know The Machining Process Of The Center Hole Of Guide Pillar?
Nov 04, 2017

At present, in the machining process of guide pillars, in order to obtain the required hardness standards, it is often necessary to do the carburizing, quenching and other heat treatment. However, there is also a very important processing link, which is processing the center hole of the guide pillar. What main content does it have? Let's take a look at it!

In fact, this part of the work is also more important. Usually, when machining the center hole of the guide pillar, the turning and grinding of the outer cylindrical surface is located at the center hole of both ends, that is, the design datum and the technological datum should be coincident.

Note that in order to ensure the machining quality of the guide pillar, we must process its center hole as required. This is because the shape accuracy and concentricity of the central hole will have a greater impact on the quality of the product. Therefore, in order to remove the deformation and other defects that may occur during the heat treatment of the central hole, and to ensure the accurate positioning of the outer cylindrical grinding, after the completion of the heat treatment operation, it is necessary to repair the central hole in time.

So, when in the trimming, what kind of method should be chosen? From the current situation, the main point is to use the grinding method on the lathe to trim the center hole of the guide pillar.

In comparison, this kind of trimming method not only can get better quality, but also the work efficiency is higher. The specific steps are: In the ground center hole of the guide pillar, add the appropriate amount of kerosene or oil, and then manually hold the workpiece for trimming.

It should be noted that if you want to further improve the precision level of the center hole of the guide pillar, when grinding it, the grinding allowance of about 0.01 to 0.015mm should be set aside after the inner circle grinding. The grinding guide pillar can use a vertical single shaft or a biaxial grinding machine.