深孔加工变负压抽屑装置的设计与研究

Design and Research of Deep Hole Machining Variable Negative Pressure Drainage Device

深孔加工技术一直是机械制造业中的关键技术,其中加工过程中高效排屑又是深孔加工过程中尤为重要的一个环节。针对深孔加工过程中切屑形态不稳定所形成的轻微堵塞的问题,通过分析研究现有的负压抽屑装置,设计脉冲式变负压抽屑装置,并研究其变负压的形成理论关系,从理论上证明形成变负压的可行性,通过ANSYS FLUENT软件进行仿真分析。脉冲式变负压抽屑装置使负压抽屑装置所形成的抽吸力可以脉冲式的变化,使切屑受到松紧不一的抽吸力,轻微堵塞的切屑在变化的抽吸力的作用下改变方向后能顺利的排出,从而尽可能的避免加工失败,提高工作效率。

Deep hole processing technology has been the key technology in the machinery manufacturing industry,which is a very important part in the process of deep hole machining. In viewof the problem of the slight blockage of chip formation in deep hole machining process,through analyzing the existing negative pressure drainage device,design the pulse type variable negative pressure pumping device,and study the relationship between the formation of negative pressure and the formation of negative pressure. The pulse type variable negative pressure suction device makes the suction of the vacuum pumping device can be changed,so that the chip is pumped by an elastic force,and the chip can be discharged smoothly without the change of suction.