Subdivision bearing ring line when the blowout

In is not easy to install and remove the bearing applications using split bearing, split bearing ring after fine grinding wire-cutting processing method is used to split apart. Line is mainly used for processing all kinds of complicated shape and precision of the workpiece, with a small machining allowance, high machining accuracy, short production cycle, low manufacturing cost advantages, suitable for small batch and many varieties of parts processing. Subdivision bearing line due to the ring after quenching brittleness, internal stress, coupled with the thread cutting when the cutting stress and the cutting effect, make the ring is going to cut out the gouges where whole pieces were missing when blowout phenomenon, increases the product rejection rate, affect the production progress and product quality. After a lot of calculation and test, this paper proposes a subdivision bearing wire-cutting processing, the method of preventing the ring in wire-cutting generated when blowout, put an end to the ring subdivision process of waste. Wire-cutting processing method as shown in figure 1, the specific process as follows: 1) From tungsten filament diameter direction cutting ring wall thickness of 2/5; 2) Tungsten wire will be moved to the inner diameter cut the position of the other side of the 180 ° to wall thickness of 2/5; 3) Tungsten wire will be moved to the outer diameter cut wall thickness of 2/5; 4) Tungsten wire will be moved to the outer diameter cut the position of the other side of the 180 ° until ( Due to the role of internal stress, tungsten wire cut to a certain position will automatically disconnect, including had not yet cut on one side of the 1/5, if there is no natural disconnect, can be further cut last) 。 Figure 1 wire-cutting processing method sketch the ring line through bearing ring wall thickness calculation lattices, reasonable distribution of each step with cutting thickness values of time-sharing, and strictly control the order of profile control points of improved bearing product quality and production efficiency, to provide a reference for the other ring pieces cutting processing.