Multi-station closed-die forming combined punch for bearing ring

Abstract

The utility model relates to bearing ring braising forming processing equipment technical field, concretely relates to a kind of exhaust's combined punch for multi-station braising forming bearing ring. Including punch body, the outside of punch body is sleeved in punch cover, the inner wall of punch cover is close to top end place and is equipped with the limiting step for limiting punch body, the outer wall of punch body is formed with the pressure platform matched with limiting step, the bottom of punch body is equipped with the stamping section that protrudes punch cover bottom end outside. The inner wall of punch cover is equipped with the arc-shaped channel for assisting exhaust, the bottom end of arc-shaped channel is flush with the bottom end of punch cover, arc-shaped channel is equipped with the exhaust hole that passes through punch cover side wall. The combined punch formed by punch cover and punch body in the utility model improves service life, and provides reliable guarantee for high-precision stamping. In addition, arc-shaped channel and reasonable layout exhaust hole cooperate exhaust, improve the internal quality of forming piece, reduce cracking risk, ensure surface quality.

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