A method for controlling the size of hull sections using a tire frame reference line

Abstract

The present invention discloses a method for controlling the size of a hull segment using a tire frame reference line, the method comprising: using a total station to open an angle ruler line on the pre-buried iron on the ground around the tire frame; when laying the base plate material constituting the hull segment on the tire frame, the plate edge of the base plate material is at a predetermined distance from the angle ruler line on the pre-buried iron; fixing the base plate material on the tire frame with a horse plate; assembling the hull segment, determining the position of the sample punch point on the angle ruler line in the total station through a reflection sheet mode, and establishing a coordinate system for measurement; using the total station to measure the distance between the management point on the hull segment and the angle ruler line; and correcting the hull segment according to the measured distance. The present invention uses the tire frame reference line, uses the total station to measure the hull segment management point, directly calculates the error data on site, and the on-site operator can make corrections in time according to the deviation data, thereby ensuring the first-time qualified rate of the segment and reducing the segment manufacturing cycle.

Description

Technical Field

[0001] The invention belongs to the field of shipbuilding, and in particular relates to a method for controlling the size of a hull segment by using a tire frame reference line. Background Art

[0002] At present, in the process of ship construction, especially in the process of hull manufacturing, the hull sections are getting larger and larger, and some sections are becoming more and more complex. It will become more complicated for on-site section assembly personnel to make sections, and the accuracy of sections is difficult to control. It often requires the precision management department to make multiple measurements and repeated corrections on site to achieve sections that meet the accuracy requirements, which seriously prolongs the dock cycle. It is urgent to find a convenient and fast way to change this situation. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a method for controlling the size of hull segments using a tire frame baseline. Some embodiments of the present invention can use the tire frame baseline to measure the hull segment management points with a total station, and directly calculate the error data on site. On-site operators can make corrections in time according to the deviation data, thereby ensuring the first-time qualified rate of the segments and reducing the segment manufacturing cycle.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for controlling the size of a hull segment using a datum line of a tire frame, the method comprising: using a total station to open an angle ruler line on the pre-buried iron on the ground around the tire frame; when laying the base plate materials constituting the hull segment on the tire frame, the plate edge of the base plate materials is at a predetermined distance from the angle ruler line on the pre-buried iron; fixing the base plate materials on the tire frame with a horse plate; assembling the hull segment, determining the position of the sample punch point on the angle ruler line in the total station through a reflection sheet mode, and establishing a coordinate system for measurement; using the total station to measure the distance between the management point on the hull segment and the angle ruler line; and correcting the hull segment according to the measured distance.

[0006] Preferably, sample punching points are punched at both ends of the angle ruler line.

[0007] Preferably, the error between the edge of the base panel and the angle ruler line on the embedded iron is less than plus or minus 2 mm.

[0008] Preferably, the angle ruler lines include: a head and tail reference line and a half-width direction reference line perpendicular thereto.

[0009] Preferably, the large assembly of the hull sections includes: one side of the base plate is connected to a curved outer plate; the other side of the base plate is connected to a flat longitudinal plate.

[0010] Preferably, the management points include: 3 evenly distributed points on the top of the outer plate and the longitudinal plate; and connection points between the outer plate and / or the longitudinal plate and the base plate visible on one side of the total station installation.

[0011] Preferably, the predetermined distance is N mm, where N is an integer greater than 0.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: using a total station to open angle ruler lines on the embedded iron on the ground around the tire frame, during the stage of laying the hull plates, the main board of the hull section base surface is kept at a fixed value from the two reference lines; after the large assembly of the hull sections is completed, the total station is used to measure the positions of the sample punching points on the two reference lines, a coordinate system is established, and then the positions of the management points on the hull sections are continued to be measured, the errors between the management points and the theoretical design data are calculated by the onboard software of the total station, and the data are fed back to the on-site operators in a timely manner, thereby achieving a one-time qualified rate for the hull sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the tire frame and the angle ruler line.

[0015] Figure 2 It is a schematic diagram of the management points after the hull sections are assembled, where AI is marked with 9 management points.

[0016] Embedded iron 1, head and tail reference lines 2, tire frame 3, half-width direction reference line 4, base plate 5, outer plate 6, management point 7, longitudinal plate 8. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1-2 As shown, this embodiment provides a method for controlling the size of a hull segment using a tire frame reference line, the method comprising: using a total station to open a square line on the embedded iron 1 on the ground around the tire frame 3; when laying the base plate material 5 constituting the hull segment on the tire frame 3, the board edge of the base plate material 5 is at a predetermined distance from the square line on the embedded iron 1; fixing the base plate material 5 on the tire frame 3 with a horse plate; assembling the hull segment, determining the position of the sample punch point on the square line in the total station through the reflection sheet mode, and establishing a coordinate system for measurement; measuring the distance from the management point 7 on the hull segment to the square line by the total station; and correcting the hull segment according to the measured distance.

[0020] Both ends of the angle ruler line are marked with points.

[0021] The error between the plate edge of the base plate material 5 and the angle ruler line on the embedded iron 1 is less than plus or minus 2 mm.

[0022] The angle ruler lines include: a head and tail reference line 2 and a half-width direction reference line 4 perpendicular thereto.

[0023] The large assembly of the hull sections includes: one side of the base plate 5 is connected to the curved outer plate 6; the other side of the base plate 5 is connected to the flat longitudinal plate 8.

[0024] The management points 7 include: 3 evenly distributed points on the top of the outer plate 6 and the longitudinal plate 8; and connection points between the outer plate 6 and / or the longitudinal plate 8 and the base plate 5 visible on one side of the total station installation.

[0025] The predetermined distance is N mm, where N is an integer greater than 0.

[0026] The present invention uses a total station to open a square line on the pre-buried iron on the ground around the tire frame, and knocks sample punching points at both ends of the square line; when laying the base panel materials constituting the hull segment on the tire frame, the horizontal distance from the two plate edges of the base panel materials facing the square line to the square line reaches a predetermined distance, and then the base panel materials are fixed on the tire frame with a horse plate; in the large assembly stage of the hull segment, in the reflection sheet mode, the total station is used to measure the position of the sample punching points on the pre-buried iron, and a coordinate system for measurement is established through the total station airborne software; the total station is used to measure the horizontal distance from the management point on the hull segment to the square line, and after comparing with the theoretical data of the hull, the hull segment is corrected according to the error.

[0027] Although the above embodiments have been described in detail for the present invention, it should be understood by those skilled in the art that modifications or improvements may be made based on the contents disclosed in the present invention without departing from the spirit and scope of the present invention, and such modifications and improvements are within the spirit and scope of the present invention.

Claims

1. A method for controlling the size of a hull segment using a tire frame reference line, characterized in that: The method comprises: On the embedded iron on the ground around the tire frame, a total station is used to open a square ruler line, wherein the square ruler line includes: a head and tail reference line and a half-width direction reference line perpendicular thereto; When the base panels constituting the hull sections are laid on the cradle, the edge of the base panels should be at a predetermined distance from the angle ruler line on the embedded iron; Use horse boards to fix the base panel on the tire frame; The hull is assembled in sections, and the position of the sample punch point on the angle ruler line is determined in the total station through the reflection sheet mode to establish the coordinate system for measurement; Use a total station to measure the distance between the management point on the hull section and the angle ruler line; Correct the hull segmentation according to the measured distance; The hull section assembly includes: One side of the base panel is connected to the curved outer panel; The other side of the base panel is connected to a planar longitudinal panel; The management points include: 3 evenly distributed points on the top of the outer plate and the longitudinal plate; and connection points between the outer plate and / or the longitudinal plate and the base plate visible on one side of the total station installation.

2. The method for controlling the hull segment size using the tire frame reference line according to claim 1, characterized in that: Both ends of the angle ruler line are punched with sample points.

3. The method for controlling the hull segment size using the tire frame reference line according to claim 1, characterized in that: The error between the edge of the base panel and the angle ruler line on the embedded iron is less than plus or minus 2 mm.

4. The method for controlling the size of a hull segment using a tire frame reference line according to claim 1, characterized in that: The predetermined distance is N mm, where N is an integer greater than 0.

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