Ball screw grinding machine HJ090

precisionhydrostatic

The machine is mainly used for precisely grinding thread grooves of ball-screw 【NC system configuration】 【Working accuracy】 The accuracy of screw ground is up to grade P3 specified in GB/T17587.3-1998 【Technical characteristics】 1、Table moves along plastic-coated rails,and wheelhead travels along rolling guide-ways,ensuring a stable and smooth movement。 2、Supported by hydrostatic bearings,the wheel spindle has characteristic of precision & heavy loading capacity。 3、Wheel dresser, which can feed automatically & manually,dress the grinding wheel into double-arc profiles with corresponding copying plates。 4、Pitch change is done by exchange gears. Pitch error is corrected by a correction bar mounted in the front of the table