Device and method for testing axial dynamic parameters of ball screw pair bonding surface

A technology of a ball screw pair and a ball screw, which is applied in the field of testing devices for dynamic characteristic parameters of a mechanical joint surface, can solve problems such as the lack of axial dynamic characteristic parameters of the joint surface of a ball screw pair, and achieve simple structure, good versatility, The effect of improving test accuracy

Inactive Publication Date: 2014-08-27
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above-mentioned device and method realize the testing of the dynamic characteristic parameters of the joint surface of the rolling guide rail, the bolted fixed joint surface

Method used

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  • Device and method for testing axial dynamic parameters of ball screw pair bonding surface
  • Device and method for testing axial dynamic parameters of ball screw pair bonding surface
  • Device and method for testing axial dynamic parameters of ball screw pair bonding surface

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[0051] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0052] figure 1 It is a schematic diagram of the structure of the device for testing the axial dynamic characteristic parameters of the joint surface of the ball screw pair of the present invention. Among them, the ball screw pair includes a ball screw nut that is joined with the ball screw. Such as figure 1 As shown, the testing device of the present invention includes a test bench 11, a ball screw support assembly, an excitation assembly with an excitation rod 9, an axial load application device, an excitation force sensor 8 and a ball screw displacement sensor 2.

[0053] Specifically, the ball screw support assembly includes: a first bearing seat 7 arranged adjacent to the excitation rod 9 of the excitation...

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Abstract

The invention relates to a device and method for testing axial dynamic parameters of a ball screw pair bonding surface. The device comprises a testing platform, a ball screw pair supporting assembly, an excitation assembly, an axial load exerting device, an excitation force sensor and a displacement sensor. The ball screw pair supporting assembly is fixed to the testing platform, is constructed to be only capable of horizontally supporting a ball screw to be tested in a micro-motion mode, and is constructed to allow a lead screw nut connected to the ball screw to be fixedly supported against the testing platform. The excitation assembly is provided with an excitation rod. The displacement sensor is used for measuring vibration of the lead screw. When the device for testing the axial dynamic parameters of the ball screw pair bonding surface is combined with the method, the axial dynamic characteristic parameters of the bonding surface of ball screw pairs of different types under different axial external loads can be texted, and the device has the advantages of being simple in structure, high in universality and high in testing accuracy.

Description

technical field [0001] The invention relates to a testing device for dynamic characteristic parameters of a mechanical joint surface and a testing method thereof, in particular to a testing device and a testing method for axial dynamic characteristic parameters of a joint surface of a ball screw pair. Background technique [0002] The CNC machine tool is a typical electromechanical coupling system with a very complex structure. The machine tool is assembled from many parts according to certain requirements. The surface connected between the parts is called the joint surface. There are a large number of mechanical joint surfaces in the machine tool. [0003] The existence of joint surfaces destroys the continuity of the machine tool structure and increases the complexity of the theoretical modeling of the machine tool. The contact stiffness and contact damping of the joint surface are important components of the stiffness and damping of the machine tool. Research shows that 3...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01N3/14
Inventor 朱坚民张统超王健李记岗战汉王海迪徐友法黄春燕
Owner UNIV OF SHANGHAI FOR SCI & TECH
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