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Roundness and straightness error measuring system for deep hole part

A straightness error and measurement system technology, applied in the direction of measuring devices, instruments, optical devices, etc., to achieve the effect of convenient use, low cost and accurate error

Active Publication Date: 2021-05-04
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The roundness error measurement equipment in the prior art - roundness meter and coordinate measuring machine, etc., and the straightness error measurement equipment - plug gauge, gauge, micrometer and ultrasonic thickness gauge, etc., are difficult to accurately and quantitatively Realize the measurement of the roundness and straightness errors of deep hole parts accurately, quickly and synchronously

Method used

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  • Roundness and straightness error measuring system for deep hole part
  • Roundness and straightness error measuring system for deep hole part
  • Roundness and straightness error measuring system for deep hole part

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A roundness and straightness error measurement system for deep hole parts, including: a support unit, a drive unit, a measurement unit and multiple sets of centering travel units.

[0030] The support unit, the support unit includes a forward bobbin 9 and a rearward bobbin 11 arranged coaxially; the forward bobbin 9 and the rearward bobbin 11 are fixedly connected; The end is provided with a bracket 12 fixedly connected with it, and a protective cover 13 is fixedly connected with the bracket 12; a first cavity and a second cavity are arranged in the forward bobbin 9; the first cavity and the second cavity In communication, the second cavity is located at one end close to the backward bobbin 11; the rearward bobbin 11 is provided with a third cavity.

[0031] Wherein, the diameter of the second cavity is larger than the diameter of the first cavity.

[0032] The drive unit, the drive unit includes a drive device, a sleeve 19 and a drive shaft 25, the drive device is arr...

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Abstract

The invention discloses a roundness and straightness error measuring system for a deep hole part, and belongs to the technical field of roundness and straightness error measurement of deep hole parts. The system comprises: a supporting unit which comprises a forward bobbin and a backward bobbin which are coaxially arranged; a driving unit comprising a driving device, a sleeve and a driving shaft, wherein the driving device is arranged in a second cavity and fixedly connected with the inner wall of the second cavity, and the driving shaft and the sleeve are arranged in the first cavity; a measuring unit comprising a laser displacement sensor, a two-dimensional position-sensitive sensor, an angle sensor and a laser distance measuring sensor; and centering walking units respectively arranged on the forward bobbin and the backward bobbin. According to the invention, the laser displacement sensor, the two-dimensional position-sensitive sensor and the angle sensor are integrated in a unified manner, positioning is carried out by using the centering walking mechanism, sample point coordinate values in a measurement coordinate system are unified in an absolute coordinate system, and accurate, quantitative and synchronous measurement of roundness and straightness errors of deep hole parts is realized.

Description

technical field [0001] The invention belongs to the technical field of roundness and straightness error measurement of deep hole parts, and in particular relates to a roundness and straightness error measurement system for deep hole parts. Background technique [0002] With the rapid development of modern equipment manufacturing industry, high-precision deep-hole parts are widely used in various fields such as aviation, shipbuilding, metallurgy and automobiles. As a precision component, the roundness and straightness of deep hole parts will directly affect the overall performance of the product. For example, the out-of-tolerance of the roundness of the engine cylinder will affect the tightness of the shaft-hole fit, resulting in the loss of energy conversion efficiency. Bending will also cause abnormal vibration and deformation of the cylinder during motion, resulting in a decrease in motion accuracy and even a certain safety hazard; excessive roundness and straightness erro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/27
CPCG01B11/2408G01B11/27
Inventor 刘志兵宋慈王西彬罗宏松王耀武刘炳鑫李大光冯彩霞沈文华腾龙龙焦黎解丽静梁志强颜培周天丰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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