CNC High speed bearing center for protecting cutting oil and alien matters in CNC lathe

摘要

The present invention relates to a CNC lathe cutting oil and a high-speed bearing center for preventing foreign matter from penetrating. More particularly, the present invention relates to a first sealing cover (SEALING COVER 1 And a second sealing cover (SEALING COVER 2), which is a form in which the cut surfaces are coupled with the " C " shape, to prevent penetration of cutting oil and foreign matter, and a cutting oil for CNC lathe and a high-will be.The present invention relates to a live center having a front end for rotationally supporting a workpiece and having an outer circumferential surface coupled with a plurality of bearings; A first sealing cover coupled to the large diameter portion of the live center and having a cut surface in a " C " shape; A shape-containing second sealing cover protruded to engage with the " D " A body for allowing the first sealing cover and the second sealing cover coupled to the live center to be inserted into the opening of the upper portion and to be coupled thereto; And an end cap mounted to the cap for blocking the hole at the rear end of the body.Therefore, the present invention is precisely machined so that it can be blocked only by the coupling of the sealing cover, so that the lifetime is shorter than that of the conventional bearing, and the maintenance cost is prevented from being increased by frequent replacement of oil seals.Also, according to the present invention, since the live center and the first sealing cover rotate together, the cutting oil and foreign matter that can flow between the first sealing cover and the second sealing cover can be cut off in a " C " shape.In addition, the present invention can prevent the occurrence of errors in the operation of the rotating body itself because the cutting oil and foreign matter are naturally discharged to the discharge hole by the centrifugal force to damage the bearing.