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A method for detecting the position degree of multi-hole intersection by three-coordinate measuring machine

A technology of a three-coordinate measuring machine and a detection method, which is applied in the detection field and can solve the problems of difficulty in testing the position of porous intersections and the like

Active Publication Date: 2019-11-29
中航洛阳光电技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to avoid the deficiencies of the prior art, the present invention proposes a method for detecting the degree of intersection of holes by using a three-coordinate measuring machine to solve the problem that it is difficult to test the degree of intersection of holes in housing parts in the optical system

Method used

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  • A method for detecting the position degree of multi-hole intersection by three-coordinate measuring machine
  • A method for detecting the position degree of multi-hole intersection by three-coordinate measuring machine
  • A method for detecting the position degree of multi-hole intersection by three-coordinate measuring machine

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specific Embodiment

[0031] exist figure 2 Among them, point B is the theoretical position point of F datum, and point O is the actual position point of F datum.

[0032] OA=ΔX is the difference between the actual size and the theoretical size from the F datum to the A datum plane;

[0033] OC=ΔZ is the difference between the actual size and the theoretical size from the F datum to the B datum plane;

[0034] ∠α=96°

[0035] Extend the two line segments AO and BC so that they intersect at point D

[0036] In right triangle COD:

[0037] which is:

[0038] but:

[0039]

[0040] In a right triangle ABD:

[0041] which is:

[0042]

[0043] In right triangle AOB:

[0044]

[0045]

[0046] but:

[0047]

[0048] Calculation of position degree of G hole (φ120)

[0049] The position error component of hole G to hole D is Z 1 :

[0050] From the actual angle where the two axes intersect, the deviation value Δα from the theoretically correct angle of 96° 1 The re...

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Abstract

The invention relates to a method for detecting a porous intersection position degree by using a three-coordinate measuring machine. A shell component with three intersected holes is measured. Three intersected axes formed by three intersected holes are arranged on a shell. The axes are named as X, Y and Z axes. The Z and X axes form a fixed angle. The Y axis is vertical to a plane formed by the Xand Z axes and passes through an intersection point. The position degrees of the Y axis and the Z axis relative to the X axis and a reference plane are resolved. Through a theory, analysis and solving are performed. And then, through programming, the automatic detection of a three-coordinate measuring machine is used to resolve, and the position degrees of the intersected hole axes can be rapidlyand accurately measured. By using the method, the position degrees of the intersected hole axes can be rapidly and accurately measured, and the method possesses good generalization performance.

Description

technical field [0001] The invention belongs to the technical field of detection, and relates to a method for detecting the position degree of porous intersection by using a three-coordinate measuring machine. The three-coordinate measuring machine is used to establish different coordinate systems to perform coordinate transformation and then test the position degree. The test scheme is simple, efficient and High precision. Background technique [0002] The intersection of multiple optical paths is very common in complex optical systems, and the housings for assembling optical components also have holes that intersect with each other. The position accuracy of the intersecting holes of the shell directly determines the performance of the optical system, so the detection of the intersecting position of the holes is very important. [0003] In the past, the position degree was measured qualitatively by designing a comprehensive inspection tool, but for a highly demanding optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/24
CPCG01B5/24
Inventor 方强余壮徐钢张辰
Owner 中航洛阳光电技术有限公司