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Ball screw auxiliary-stroke error detection system

A ball screw pair and stroke error technology, which is applied in the field of ball screw pair stroke error detection system, can solve problems such as influence, achieve the effect of accurate length change, reduce error value, and avoid measurement error

Pending Publication Date: 2017-08-18
BEIJING PIXI AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects caused by the influence of temperature on the length of the ball screw pair in the prior art during the length measurement process.

Method used

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Embodiment Construction

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

A ball screw auxiliary-stroke error detection system comprises a main transmission shaft, a compensation follower, a circular magnetic grid and a grating ruler; one end of the compensation follower abuts against a ball screw pair, and the other end of the compensation follower is fixedly disposed; the circular magnetic grid and the main transmission shaft are coaxially disposed and fixedly connected; the grating ruler and the ball screw pair are disposed in parallel, and the grating ruler comprises a grating reading head and a measuring head which is connected with the grating reading head and abuts against and cooperates with screw threads of the ball screw pair; and axial displacement information and angle displacement information of the ball screw pair can be measured respectively through the grating reading head and the circular magnetic grid, and then the purpose of manufacturing precision detection for the ball screw pair is achieved. Compensation monitoring can be performed on a length change of the ball screw pair through the compensation follower. After environment temperature of the ball screw pair changes, a processor can receive a change signal sent from the compensation follower and perform processing, an actual length of the ball screw pair is restored, and then an error value brought by a temperature change is reduced to a maximum degree.

Description

technical field [0001] The invention relates to the technical field of precision instrument detection, in particular to a ball screw secondary stroke error detection system. Background technique [0002] The ball screw pair is also known as the ball screw pair and the ball screw pair. It is composed of two sets of screw and nut. It is the transmission device with the highest precision and the most commonly used in transmission machinery at present. The ball screw pair is a screw transmission element with steel balls as rolling bodies between the screw and the nut. It converts rotary motion into linear motion or vice versa. Therefore, the ball screw pair is not only the transmission element, but also the conversion element between linear motion and rotary motion. Since the ball screw pair is a high-precision transmission device, it is inevitable that there will be unqualified products with large errors during the manufacturing process. Therefore, stricter requirements are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/02
CPCG01B5/0011G01B5/02G01B5/0014
Inventor 肖长华
Owner BEIJING PIXI AUTOMATION TECH
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