JPH063226A - Ascertaining method for accuracy during assembly of structure - Google Patents

Abstract

PURPOSE:To simplify the ascertaining of accuracy quality by marking inside structure material previously with an assembly parallel reference line and an assembly vertical reference line, and ascertaining horizontal degree and vertical degree with a detecting means through the assembling and welding work of the structure material. CONSTITUTION:The intersecting line of a plane parallel to a horizontal ground 1, being an assembly jig plane, and an inside structure material 4, being a hull block structure, is set as an assembly parallel reference line 7. The intersecting line of a plane passing a block reference line 6 on a hull outside plating 2, being vertical to the horizontal ground 1 and the structure material 4 is fixed thereto, and the structure material 4 is set as an assembly vertical reference line 8. The structure material 4 is previously marked with the assembly parallel reference line 7 and the assembly vertical reference line 8. The horizontal degree and vertical degree of the marked reference lines 7, 8 is ascertained with a detecting means through the assembling and welding work of the structure material. Positioning relationship between the structure material 4 and the hull outside plating 2 is ascertained by means of the reference lines 8, 6. By marking previously this way, it is possible to ascertain simply the placing way, torsion, and deformation of the structure material 4 against the hull outside plating 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for confirming accuracy when assembling a structure, and is particularly suitable as a method for confirming the accuracy such as twisting or deformation of a hull block when assembling to a hull skin. That's the method.

[0002]

2. Description of the Related Art Conventionally, accuracy confirmation at the time of assembling a hull block structure in a ship is as shown in FIG.
First, a large number of support jigs 13, 13, ... Are erected on the assembly jig plane (ground) 11, and the support jigs 13, 1
3, the hull skin 12 is placed, and then the positional relationship between the block reference line 16 and the material distribution reference line 15 on the assembly jig plane 11 of the hull skin 12 to be set is measured and matched. The hull block structures 14, 14, ...

The periphery 17, 18 of the hull skin 12,
The heights of 19, 20 and 21, 22, 23, 24 were measured.

[0004]

However, in the above-mentioned conventional technique, the periphery 17,1 of the hull outer plate 12 is used.
Although the accuracy of the accuracy of 8, 19, 20 and 21, 22, 23, 24 can be confirmed, the accuracy of the accuracy of the hull block structure 14 which is an internal structural material was not exactly known.

Therefore, the hull block structure 1 before assembly
The twisting and deformation of 4 can not be easily confirmed, and the work for adjusting the fitting of the structure 14 on the stern significantly increases, and
There is a problem that it is difficult to build a highly accurate ship.

The present invention is intended to solve the above problems. That is, according to the present invention, it is possible to easily confirm the twist or deformation of the internal structural member before assembly, correct the internal structural member, and reduce the work for adjusting the joint of the internal structural member. The purpose is to provide a method for confirming accuracy.

[0007]

In order to achieve the above object, the accuracy confirmation method at the time of assembling a structure of the present invention is such that an intersection line between a plane parallel to a plane of an assembly jig and an internal structural member is an assembly parallel reference. And a line perpendicular to the plane of the assembly jig and passing through the block reference line on the outer plate to which the internal structural member is attached and the internal structural member as an assembly vertical reference line. An assembly vertical reference line is previously marked on the internal structural material before assembly, and then the pre-marked assembly parallel reference line is passed through the assembly and welding operation of the internal structural material to detect the horizontality. To confirm the horizontality, and to confirm the verticality of the pre-marked assembly vertical reference line with the verticality detecting means, and the positional relationship between the internal structural member and the outer plate by the assembly vertical reference line and the block reference line. To It consists of certification.

[0008]

According to the present invention, the assembly parallel reference line parallel to the assembly jig plane and the vertical assembly vertical reference line are previously set.
Since the internal structural material before assembly is marked, it is easy to check how the internal structural material is placed, twisted, deformed, etc. with respect to the outer plate with horizontal level detecting means such as a leveler and vertical degree detecting means such as plumb bob. Moreover, by correcting the individual internal structural members using the measurement results, it is possible to obtain a product with high accuracy as a whole.

[0009]

1 is a perspective view showing an example of a state in which the method of the present invention is being carried out. In FIG. 1, 1 is a horizontal ground as an assembly jig plane, 2 is a hull outer plate, 3 is a support jig, 4 is an internal structural material, 5 is a distribution reference line, 6 is a block reference line, and 7 is described later. An assembly parallel reference line, 8 is an assembly vertical reference line described later, 9 is a bracket material, and 10 is a longe material.

That is, the horizontal ground 1 which is the plane of the assembly jig.
A line on the hull outer plate 2 to which the internal structural member 4 is attached perpendicularly to the horizontal ground 1 as an assembly parallel reference line 7 which is a line of intersection between the plane parallel to the internal structural member 4 which is a hull block structure. An intersection line between the plane passing through the reference line 6 and the internal structural member 4 is used as an assembly vertical reference line 8, and the assembly parallel reference line 7 and the assembly vertical reference line 8 are previously set in the internal structural member 4 before assembly. Mark it.

Next, during the assembling and welding operations of the internal structural member 4, the previously marked assembly parallel reference line 7 and assembly vertical reference line 8 are used to determine the levelness of the leveler, water pipe hose, tension thread, plumb bob, etc. The horizontality and verticality are confirmed by the detection means and the verticality detection means. Further, the positional relationship between the internal structural member 4 and the hull outer plate 2 is confirmed by the assembly vertical reference line 8 and the block reference line 6.

As described above, the assembly parallel reference line 7 parallel to the horizontal ground 1 and the assembly vertical reference line 8 perpendicular to the horizontal ground 1 are set in advance.
Since the internal structural material 4 before assembly is marked, it is possible to easily check how the internal structural material 4 is placed, twisted, deformed or the like with respect to the hull skin 2, and use the measurement results. By modifying the individual internal structural members, it is possible to build a highly accurate ship as a whole.

[0013]

As described above, according to the present invention,
A line of intersection between the plane parallel to the assembly jig plane and the internal structural member is taken as an assembly parallel reference line, and a plane perpendicular to the assembly jig plane and passing through the block reference line on the outer plate to which the internal structural member is attached and As an assembly vertical reference line an intersecting line with the internal structural material, these assembly parallel reference line and assembly vertical reference line are marked in advance on the internal structural material before assembly, then,
Throughout the assembly and welding work of the structural material, the pre-marked assembly parallel reference line is checked for levelness by the levelness detecting means, and the pre-marked assembly vertical reference line is checked for levelness by the verticality detecting means. Therefore, it is possible to easily confirm whether the accuracy is good or bad, and use the measurement result to correct each internal structural material, thereby making it possible to manufacture a highly accurate product. Further, the positional relationship between the internal structural member and the outer plate can be confirmed by the assembly vertical reference line and the block reference line.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a conventional technique.

[Explanation of symbols]

 1 Horizontal ground (assembly jig plane) 2 Hull outer plate 4 Internal structural material (block) 5 Pipe reference line 6 Block reference line 7 Assembly parallel reference line 8 Assembly vertical reference line

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tamoji Hamada, 2-1 Showa-cho, Kure-shi, Hiroshima Prefecture Ishikawajima Harima Heavy Industries Co., Ltd. Kure Daiichi Factory (72) Inventor Takamaro Hatsuzaki 2 Showa-cho, Kure-shi, Hiroshima Prefecture -1 Ishikawajima Harima Heavy Industries Co., Ltd. Kure Daiichi Factory

Claims (2)

[Claims] 1. A block reference line on an outer plate to which the internal structural member is attached perpendicular to the plane of the assembly jig, with a line of intersection between a plane parallel to the plane of the assembly jig and the internal structural member as an assembly parallel reference line. As an assembly vertical reference line, a line of intersection between the plane passing through and the internal structural material, these assembly parallel reference line and assembly vertical reference line,
In advance, the internal structural material before assembly is marked, and then, the level of the pre-marked assembly parallel reference line is checked by the levelness detecting means throughout the assembly and welding of the internal structural material. The verticality of the pre-marked assembly vertical reference line is confirmed by a verticality detecting means, and the positional relationship between the internal structural member and the outer plate is confirmed by the assembly vertical reference line and the block reference line. How to check the accuracy when assembling a structure. 2. The accuracy in assembling a structure according to claim 1, wherein the plane of the assembly jig is a horizontal ground, the outer plate is a hull outer plate, and the internal structural material is a block welded to the hull outer plate. Confirmation method.