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Node deviation measuring instrument and node deviation measuring method

A technology of deviation measurement and measurement method, which is applied in the field of shipbuilding and can solve the problems of lack of versatility and many sizes and specifications.

Active Publication Date: 2019-05-21
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a node deviation measuring instrument and a method for measuring node deviation in order to overcome the defect that the node deviation measuring instrument has many sizes and specifications and does not have versatility in the prior art

Method used

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  • Node deviation measuring instrument and node deviation measuring method
  • Node deviation measuring instrument and node deviation measuring method
  • Node deviation measuring instrument and node deviation measuring method

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Experimental program
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Effect test

Embodiment 1

[0065] Such as figure 2 and image 3 As shown, the present invention provides a node deviation measuring instrument 20, which is used to measure the deviation of the cross joint 10. The node deviation measuring instrument 20 has a first reference edge 21, a second reference edge 22, a measurement reference line and a measurement edge twenty three. Wherein, the first reference edge 21 is used to abut against the first plate P of the cross joint 10 1 On the surface, the second reference edge 22 is used to abut against the second plate P of the cross joint 10 2 On the surface of , the measurement reference line is along the third plate P parallel to the cross joint 10 3 The center line L 3 Set, and the extension line of the measurement reference line intersects the intersection of the first reference edge 21 and the second reference edge 22, and the measurement edge 23 of the node deviation measuring instrument 20 coincides with the measurement reference line.

[0066] The ...

Embodiment 2

[0083] Such as image 3 , Figure 4 and Figure 6 As shown, this embodiment also provides a method for measuring the node deviation, which is used to measure the deviation of the cross joint 10. This method also uses the node deviation measuring instrument 20 as described in Embodiment 1. The specific steps of the method are as follows :

[0084] S201. Obtain the first plate P of the cross joint 10 to be measured 1 Thickness t 1 , the second board P 2 Thickness t 2 , the third board P 3 Thickness t 3 , the first board P 1 with the second plate P 2 The included angle β and the second plate P 2 with the third plate P 3 The included angle θ;

[0085] S202. Pass the first board P 1 Thickness t 1 , the second board P 2 Thickness t 2 , the third board P 3 Thickness t 3 , the first board P 1 with the second plate P 2 The included angle β and the second plate P 2 with the third plate P 3 Calculate the angle θ of the third plate P 3 The deviation reference value ...

Embodiment 3

[0094] This embodiment also provides a node deviation measuring instrument 20, which has roughly the same structure as that of the node deviation measuring instrument in Embodiment 1. The difference is that, in this embodiment, the measuring edge 23 of the node deviation measuring instrument 20 It is not coincident with the measurement reference line 231, but is arranged parallel to the measurement reference line 231 on the side away from the third plate. That is, the measuring edge 23 is kept parallel to the measuring reference line 231 , therefore, in the formula for calculating the deviation reference value a, the value of the distance z is not 0.

[0095] Specifically, in the cross joint 10 measured by the node deviation measuring instrument 20, the thickness t of the third plate 3 greater than the thickness t of the first plate 1 , or the thickness t of the second plate 2 When using the nodal deviation measuring instrument 20 provided by Embodiment 1, the following situ...

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Abstract

The invention discloses a node deviation measuring instrument and a node deviation measuring method. The node deviation measuring instrument is used for measuring the deviation of a cross joint; the node deviation measuring instrument is provided with a first reference edge, a second reference edge, a measurement edge, a measurement reference line; the first reference edge abuts against the surface of the first plate of the cross joint; the second reference edge abuts against the surface of the second plate of the cross joint; the measuring reference line is parallel to the center line of thethird plate of the cross joint; the extension line of the measurement reference line intersects the intersection point of the first reference edge and the second reference edge; and the measurement edge is parallel to or overlapped with the measurement reference line. Since the extension line of the measurement reference line intersects the intersection point of the first reference edge and the second reference edge, the deviation reference value of the measurement edge parallel to or overlapped with the measurement reference line can be directly obtained on the basis of the thickness of the plates of the cross joint and the angles of the plates, and therefore, the use universality of the node deviation measuring instrument is improved.

Description

technical field [0001] The invention relates to the field of shipbuilding, in particular to a node deviation measuring instrument and a node deviation measuring method. Background technique [0002] In the entire hull structure, there are a large number of cross joints (also called nodes) composed of upper, middle and lower steel plates. If these cross joints are located in key areas or positions of the hull, when the three steel plates are assembled, other The alignment of the centerline must be strictly controlled. [0003] Such as figure 1 As shown, the three plates of the cross connector 10 (P 1 ,P 2 ,P 3 ) intersects at one point, it is more conducive to the natural transmission of force and reduces the stress concentration caused by structural discontinuity, thereby reducing the risk of structural failure at nodes. [0004] In the actual manufacturing process of the hull, in order to be able to detect the deviation of the cross joint on site, a node deviation meas...

Claims

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Application Information

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IPC IPC(8): G01B5/00B23P19/10
Inventor 靳盼盼李勇甘水来黄祖钦金丽丽
Owner SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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