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如图所示,这种气动油阻滑板,结构简单紧凑,调节方便,滑板运动的速度可根据粗精加工的需要而选择,其精加工的光洁度可达6～7。此结构的缺点是,油阻尼系统不能泄漏,否则空气进入系统,滑板运动就不稳定。‘_此机构由两个二位三通阀或用一个二位四通阀控制。当气缸24的螺孔21进压缩空气(一般用4～6公斤/厘米~2)时,螺孔26就排气,上滑板通过连接销9带动油阻尼缸内的活塞8一道向左运动。这时,左腔为正压,右腔为负压,便产生抽吸作用,左腔的油液就从两个通道迅速向右腔流动。一条油路为:左腔→Ⅲ→Ⅳ→右腔;另一条为:左腔→Ⅴ(经过可调单向节流阀)→Ⅱ(经单向节流阀)→右腔。在上滑板向左滑行的同时,螺钉
As shown in the figure, the pneumatic oil skateboard has the advantages of simple and compact structure, convenient adjustment, and the speed of the skateboarding motion can be selected according to the needs of the roughing finishing with finishing finish of up to 6 ~ 7. The disadvantage of this structure is that the oil dampening system can not leak or air enters the system and the skateboard motion is unstable. ’_ This mechanism is controlled by two two-position three-way valves or by a two-position four-way valve. When the screw hole 21 of the air cylinder 24 enters the compressed air (usually 4 to 6 kg / cm 2), the screw hole 26 is exhausted. The upper sliding plate drives the piston 8 in the oil damping cylinder to move to the left through the connecting pin 9. At this time, the left chamber is positive pressure, the right chamber is negative pressure, they have a suction effect, the left chamber of the fluid from the two channels to the right chamber quickly flow. One of the oil passages is: left chamber → Ⅲ → Ⅳ → right chamber; the other is left chamber → V (adjustable one-way throttle) → Ⅱ (unidirectional throttle) → right chamber. While sliding on the skateboard to the left, screw