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我厂有一台天津塘沽机床厂制造的L6140拉床。该机床采用63SCY14-1型变量柱塞泵,工作和回程的速度取决于泵的调定流量。在液压系统中,差动油缸的回程速度是工作速度的2.24倍,回程速度不能单独调整,因此工作速度低时,回程速度也相应低。我厂经常使用的拉削速度为0.7m/min左右,回程速度为1.56m/min,因此工作效率低,不能满足生产要求。另外,该机床又采用手动控制,由于操纵手柄的作用力约为30公斤力左右,很费力。
I have a factory in Tianjin Tanggu Machine Tool Works L6140 broaching machine. The machine uses 63SCY14-1 variable displacement piston pump, work and return speed depends on the pump set flow. In the hydraulic system, differential cylinder return speed is 2.24 times the working speed, the return speed can not be adjusted separately, so the working speed is low, the return speed is also low. Our factory often use the broaching speed of 0.7m / min or so, the return speed of 1.56m / min, so the work efficiency is low, can not meet the production requirements. In addition, the machine and manual control, as the manipulation of the handle about 30 kilograms of force, it is laborious.