A nut-driven hydrostatic screw screw transmission pair and machine tool
A screw drive and drive type technology, applied in transmissions, mechanical equipment, metal processing machinery parts, etc., can solve the problems of poor high-speed performance of equipment, temperature rise of lead screw, poor rigidity, etc. Noise reduction effect
Active Publication Date: 2021-08-31
SHANDONG UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to solve the existing problems of high energy consumption, serious vibration, serious temperature rise when the lead screw rotates at high speed, bending deformation, thermal deformation and cutting load deformation caused by the self-weight of the lead screw and temperature rise, etc. Problems of poor performance, low precision, poor rigidity, and high noise Provide a nut-driven hydrostatic screw screw transmission pair, which can be widely used in CNC gantry milling machines, CNC floor bores, large-scale pentahedron machining centers, etc. Large special equipment
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[0034] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0035] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof;
[0036] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present i...
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The invention discloses a nut-driven hydrostatic screw screw transmission pair and a machine tool, which include a hydrostatic screw and a nut assembly; the nut assembly includes a driving nut, a hydrostatic bearing, an oil inlet sleeve, and an oil inlet sleeve The base and the sleeve; the inner ring of the driving nut is threaded with the hydrostatic screw, and the structure is equivalent to that of a common hydrostatic screw nut pair. The outer ring of the drive nut is fitted with an oil inlet sleeve, and the drive nut and the oil inlet sleeve are supported by a hydrostatic bearing. The outer ring of the oil inlet sleeve is fitted with an oil inlet sleeve base, which is connected to the drive The nuts are supported by sleeves; the base of the oil inlet sleeve is provided with a first oil inlet hole, and the oil inlet sleeve is provided with a second oil inlet hole; the drive nut is provided with a third oil inlet hole, the second oil inlet hole The first oil inlet, the second oil inlet and the third oil inlet are connected in sequence, and the oil is fed into the auxiliary oil chamber of the hydrostatic lead screw through the first oil inlet, the second oil inlet and the third oil inlet.
Description
technical field [0001] The invention relates to a novel nut-driven hydrostatic screw drive device and various machine tools and high-end preparations including the device for realizing micro-nano-level high-precision machining and measurement in various occasions. Background technique [0002] With the country's industrial development, the requirements for high-end CNC equipment are getting higher and higher. The development of modern manufacturing industry has put forward higher requirements for CNC machine tools. High-speed, high-precision and high-efficiency machining are the goals that machine tool users and manufacturers have always pursued. Many scientific research institutions at home and abroad have done a lot of research on this. Ultra-precision machining technology is an important support technology for modern high-tech warfare, the foundation for the development of modern high-tech industries and science and technology, and the development direction of modern manu...
Claims
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IPC IPC(8): F16H25/24B23Q5/40
CPCB23Q5/40F16H25/24
Inventor 冯显英王兆国孙德鹏李沛刚杜付鑫李慧
Owner SHANDONG UNIV