生瓷带打孔机冲孔单元的质量提升

Quality Improvement of Punching Unit for LTCC

生瓷带打孔机是LTCC多层基板制造的关键工艺设备,冲孔单元是其核心部件,用来完成冲孔动作。在长期使用过程中发现,随着冲针与凹模之间的间隙减小,孔的边缘质量越来越差。通过试验观察,冲针在下降冲孔时受损。运用鱼骨图分析冲针受损的原因,通过提高导向刚度、完善零件加工工艺和整改装配过程不符合项等措施,提升冲孔单元质量。通过客户现场使用验证,改进后的冲孔单元冲孔质量稳定可靠,满足生产使用需求,性能得到提升。

The green tape punching machine is one of the key equipment of the LTCC multi-layer substrate manufacture. Punching unit is the core component of the equipment. However, with the long-term application, it had been found that as the gap between the pin and the die decreased, the edge quality of the hole was getting worse. Through the experiment, the pin was damaged when it declined. The factors which causes needle damage were analyzed with fishbone diagrams. By improving the guidance stiffness, the processing technology, the stability of punching unit was improved greatly. At last, it was proved by field experiment that the improvements accorded with production requirement and the performances were also improved.