基于等离子火焰切割机传动微调机构的加工工艺研究

Research on processing technology of transmission fine adjustment mechanism based on plasma flame cutting machine

由于等离子火焰切割机传动机构在传动过程中的不稳定性,导致所加工产品的精度无法达到设计要求,分析得出当前等离子火焰切割机设备中的传动机构是产生加工误差的主要原因。通过设计改变传动机构的调节方式,限制多余自由度,利用弹性柱销联轴器和限位弹簧来调节传动箱的移动,使得传动齿轮与齿条准确啮合,避免产生齿向错位及跳动,确保在切割过程中切割头的稳定性和准确性。将改进后设备运用于齿轮精密加工工艺过程中,使得产品合格率提高到98%,加工成本降低57%,加工周期缩短50%,减少了对高性能专用机床的依靠,极大地提高了经济效益,且在同类零件加工中具有一定的市场推广价值。

Due to the instability of the transmission mechanism of the plasma flame cutting machine in the transmission process,the precision of the processed product cannot meet the design requirements. The transmission mechanism of plasma flame cutting machine is the main reason for producing machining error. By designing and changing the adjusting mode of the transmission mechanism,the redundant degree of freedom is limited,and the movement of the transmission case is adjusted by utilizing the elastic pin coupling and the limiting spring,so that the transmission gear is accurately meshed with the rack,the tooth direction dislocation and the beating are avoided,and the stability and the accuracy of the cutting head in the cutting process are ensured. The improved equipment is applied to the process of gear precision machining,results show that the qualified rate of the product is increased to 98%,the processing cost is reduce by 57%,the processing period is shortened by 50%,the dependence on a high-performance special machine tool is reduced,the economic benefit is greatly improved,and the method has certain market popularization value in the processing of similar parts.