Prestretching structure of numerical control machine tool ball screw pair and method
A ball screw pair, numerical control machine tool technology, applied in the field of numerical control machine tools, can solve the problems of thermal deformation of the ball screw, decrease in feed accuracy, and decrease in rigidity of the feed system of the machine tool, so as to eliminate thermal deformation, shock resistance and service life. Improve and improve the effect of supporting rigidity
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[0017] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0018] like figure 1 The shown pre-stretching structure of a ball screw pair of a CNC machine tool includes a slide seat 1, a ball screw pair 3 and a first lock nut 4 arranged on a CNC machine tool, and the slide seat 1 is fixedly installed with a first The bearing seat 5 and the second bearing seat 17, the first bearing seat 5 is provided with an outer spacer 6 and an inner spacer 7, and a tapered roller bearing 8 and a deep groove ball are arranged between the outer spacer 6 and the inner spacer 7 The bearing 9 is provided with a first end cover 10 on the outer spacer 6, and the first end cover 10 is fixedly installed on the first bearing seat 5, such as ...
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