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加强型圆锥滚子轴承筐形保持架,由于滚子增加,保持架孔梁变窄。在冲窗孔工序中,容易出现孔梁扭曲。即使经过压坡工序,仍存在压坡大小不均匀,直接影响产品质量。 为了解决孔梁扭曲变形,我厂将原有的平刃口冲头改为圆弧刃口冲头,经过7215E、 7310E等十余个型号的生产验证,基本消除了孔梁扭曲变形。同时可降低冲裁力50％左右,机床和模具的振动相应降低,延长了使用寿命。
Reinforced tapered roller bearing cage-shaped cage, due to increased rollers, cage bore narrow. Hole punch in the process, prone to hole beam distortion. Even after the pressure gradient process, there is still uneven slope size, a direct impact on product quality. In order to solve the hole beam distortion, I plant the original flat edge punch into a circular edge punch, after 7215E, 7310E, such as more than 10 models of production verification, the basic elimination of beam distortion. At the same time reduce the blanking force of about 50%, the corresponding reduction of machine tools and mold vibration, extending the service life.