Cold bending machinery equipment design

　　1, orbit arc parts is slippery course core parts, the first few after moulding of circular arc, the back pass rolling vertical edge, deal with established arc, through the roll up and down, or cross, effectively control protection, otherwise, the material in the process of drawing arc will change, R has shrunk as triangles, steel ball is not in the end, two contact produce noise, when R is bigger, shaking with rail, slide rail track when using fuzzy, uneven, slide rail deformation, shorten life.

　　2. The principle of the average stress of each pass, the average stress of the whole line roller, wear balance, prolong the service life of the roller.

　　3, rolling stability problem, the production often encounter the problem of material in the raceway left and right swing, in fact, a single set of rollers under the asymmetry, the left side of the force is large, the material to the right swing; The force on the right side is large, and the material swings to the left.

　　4, the use of C12MoV roller material is the use of its wear resistance, but the specific strength and hardness is contradictory, heat treatment to use the red hardness of C12MoV, quenching, two or even three times tempering to achieve hardness.