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液压涨形工艺在我国已应用于皮带轮、弹性元件、蛇形管等零件的生产。它与铸件经过机加工而成的皮带轮相比,有重量轻、工序少、劳动条件好等优点。它的模具与常规冲模相比,具有润滑条件好,产品与模具没有相对滑动,寿命高等优点。但成型部分的精度是由模具来保证,所以模具精度直接影响产品的精度。而模具的精度又与具体结构有关,因此合理地设计模具是保证产品精度的重要一环. 我厂几年来采用“三瓣式”模具,现在已逐渐暴露出一些问题影响了生产,被列入厂攻关项目.我们在原模具的基础上重新设计了一套二瓣式模具,能稳定在80％左右,现在已用于生产。下面就风扇皮带轮的模具与产品精度问题来谈谈我们看法.
Hydraulic hogging technology in China has been applied to the pulley, flexible components, such as the production of serpentine tubes. It is machined compared with the cast pulley, light weight, less work, good working conditions and so on. Its die compared with conventional die, with good lubrication conditions, the product does not slide relative to the mold, high life expectancy. However, the accuracy of the molded part is guaranteed by the mold, so the accuracy of the mold directly affects the accuracy of the product. The accuracy of the mold is related to the specific structure, so designing the mold rationally is an important part of ensuring the accuracy of the product. In the past few years, our factory has adopted the “three-valve” mold, and now some problems have gradually been exposed, affecting the production. Plant tackling project.We have redesigned a set of two-valve mold on the basis of the original mold, can be stabilized at about 80%, and now has been used in the production. Below the fan pulley mold and product accuracy to talk about our views.