Horizontal measuring device for axial static rigidity of ball screw pair and method thereof

A ball screw pair and measuring device technology, applied in the field of measurement, can solve the problems of single form, low versatility, inability to measure, etc., and achieve the effects of accurate and reliable data value, stable and reliable loading, and wide application range

A ball screw pair and measuring device technology, applied in the field of measurement, can solve the problems of single form, low versatility, inability to measure, etc., and achieve the effects of accurate and reliable data value, stable and reliable loading, and wide application range

CN103018104AActive Publication Date: 2013-04-03NANJING UNIV OF SCI & TECH
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  • Horizontal measuring device for axial static rigidity of ball screw pair and method thereof
  • Horizontal measuring device for axial static rigidity of ball screw pair and method thereof
  • Horizontal measuring device for axial static rigidity of ball screw pair and method thereof

Examples

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Embodiment Construction

[0013] The present invention adopts the loading mode of fixing the screw to be tested and exerting force on the nut to be tested, and uses a pressure sensor and a displacement sensor to sample the axial load and micro-displacement of the nut to be tested respectively, wherein the pressure sensor and the nut to be tested are fixed Even, the displacement sensor is installed on the bed through the displacement sensor fixture to measure the vertical displacement of the right end face of the nut under test. By processing the sampled data, the axial static stiffness curve of the ball screw under the tension and compression state can be drawn respectively, and the value can be finally calculated, so as to realize the measurement of the axial static stiffness of the ball screw. The specific content is as follows.

[0014] to combine figure 1 , the horizontal static stiffness measuring device of the ball screw pair of the present invention includes a loading assembly, an anti-rotation ...

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Abstract

The invention discloses a horizontal measuring device and a horizontal measuring device for the axial static rigidity of a ball screw pair. The horizontal measuring device comprises a loading component, an anti-rotation component, a measuring component, a locking component, a support component and a data processing module, wherein the loading component comprises a servo motor, a decelerator, a belt wheel transmission part, a pair of loading screws, a pair of loading nuts and a moving beam; the anti-rotation component comprises a screw tool, an adaptor plate and a sleeve; the measuring component comprises a displacement sensor and a pressure sensor; the locking component comprises a locking screw, a locking hand wheel and double nuts; the support component comprises a lathe bed, a head bracket, a tail bracket and a displacement sensor clamp; and the data processing module is a computer needed by data processing. By utilizing the horizontal measuring device, the automatic measurement on the axial static rigidity of the ball screw pair is realized, and the horizontal measuring device has the advantages of large loading load, high measurement precision, wide application range, multiple measurement positions and consideration on both tension and compression in axial loading.

Description

technical field [0001] The invention belongs to the technical field of measurement, in particular to a horizontal measuring device and method for axial static stiffness of a ball screw pair. Background technique [0002] A ball screw pair is a mechanical component consisting of a ball screw, balls and ball nuts, whose main function is to convert rotational motion into linear motion, or torque into axial repetitive force. It can achieve very high transmission and positioning accuracy, and is widely used in the feed transmission system of various precision machine tools. It is a widely used and demanding accessory and basic part in the machinery industry. [0003] The axial static stiffness of the ball screw pair reflects the ability of the ball screw pair to resist axial deformation, which is defined as the axial force that produces 1 Axial force (N) required for deformation. The ball screw pair is a key component of the feed system of the CNC machine tool, and its various...

Claims

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Application Information

Patent Timeline
03 Apr 2013
Publication
CN103018104A
IPC
G01N3/08
Inventors
王禹林; 冯虎田