SU132061A1 - A method of manufacturing valve crackers of internal combustion engines - Google Patents

Description

Typically, the manufacture of valve crunches for internal combustion engines is done by machining. The crackers are cut in pairs from a single round bar, cut into milling machines, after which they are deburred from the burrs. This method is associated with high metal consumption, considerable labor intensity and relatively low productivity.

The proposed method does not have the indicated disadvantages, since the croutons are stamped in pairs from a rectangular constant cross-section billet in a sequential stamp. This method makes it possible to obtain more accurate sizes of crackers and increases productivity.

The supreme strength of the method is illustrated in the drawing, which schematically shows the stamping process. Band 1 is fed into the stamp and the extreme spheres 2 and middle spheres 3 are cut down in it. The waste then falls down into the windows of the lower plate of the stamp. Upon further movement of the strip, the punches cut down two blanks of crackers 4 and form crackers on a given profile. At the same time, in the extreme spheres 2 crackers get the desired thickening, and in the spheres 3 a slight thinning.

Subject invention

A method of manufacturing valve crackers for internal combustion engines by punching, about 1 or 2, and so that, in order to achieve exact sizes of crackers and increase productivity, they are stamped in pairs from a rectangular constant cross-section blank in a successive stamp.