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Device and method for measuring clearance and rigidity of ball screw

A ball screw and measuring device technology, applied in the field of measurement, can solve problems such as troublesome operation and low precision, and achieve the effects of convenient processing and assembly, high measurement precision, and adjustable damping

Pending Publication Date: 2017-07-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of low precision and cumbersome operation in the prior art, the present invention provides a measuring device and method for ball screw clearance and stiffness

Method used

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  • Device and method for measuring clearance and rigidity of ball screw
  • Device and method for measuring clearance and rigidity of ball screw
  • Device and method for measuring clearance and rigidity of ball screw

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Such as Figure 1-Figure 5 As shown, a ball screw clearance and stiffness measuring device, including a ball screw transmission unit, a displacement detection unit and a damping loading unit;

[0036] The ball screw transmission unit includes a servo motor 1, a shaft coupling 3, a ball screw 5, a slider 7 and two linear guide rails 6, the servo motor is mechanically connected to one end of the motor base 2, and the other end of the motor base is mechanically connected. One end is mechanically connected to one end of the lead screw base 4, and the bottom plate of the motor base is fixed on the test bench 14 by bolts. The motor base has a U-shaped structure, and the coupling 3 is located in the hollow of the motor base. The input of the coupling The output end of the coupling is directly connected to the output end of the servo motor, and the output end of the coupling is connected to one end of the ball screw lever. The ball screw is placed on the screw base, and the two...

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Abstract

The invention discloses a device and method for measuring the clearance and rigidity of a ball screw. The device comprises a ball screw driving unit, a displacement detection unit and a damp loading unit, and is characterized in that the ball screw driving unit comprises a servo motor, a coupling, a ball screw, a sliding block and two linear guide rails; the displacement detection unit comprises a grating scale displacement sensor and a servo motor encoder used for measuring rotation angular displacement of the servo motor and the ball screw, and the damp loading unit comprises an electromagnetic damper, a damping base and a floating joint. The device can realize measurement for the clearance and rigidity of the ball screw under the action of big and small damping forces.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a device and method for measuring the gap and stiffness of a ball screw. Background technique [0002] A ball screw is a mechanical component consisting of a screw, balls, and ball nuts. Its main function is to convert rotational motion into linear motion, and to convert torque into axial repetitive force. Because of its high precision, reversibility and high efficiency, it is widely used in various industrial equipment and precision instruments. It is a widely used and demanding accessory and basic part in the machinery industry. [0003] In actual production, in order to improve the accuracy of screw transmission, in addition to ensuring the manufacturing and assembly accuracy of each transmission component, reasonable measures must be taken to eliminate the gap of the ball screw. The gap measured by the screw is very important for gap control. Function; the axial static s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/14G01M5/00
CPCG01B11/14G01M5/0058
Inventor 邱志成余龙焕
Owner SOUTH CHINA UNIV OF TECH
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