Off-site half-hull joining method and apparatus

Abstract

An off-site half-hull joining method and apparatus. In the joining method, three-dimensional data of half-hulls to be joined is established in the same precision measurement and control network, such that positioning datum lines of different half-hulls to be joined remain consistent, thereby reducing precision errors after joining; a reference half-hull is determined before half-hull joining, and the relative positional relationships between the half-hulls to be joined and hull transport carriers corresponding thereto are controlled to remain consistent, thereby avoiding the situation where overall misalignment during half-hull joining is caused by the offset of said half-hulls during transportation; joining simulation is performed before half-hull joining, and said half-hulls are corrected on the basis of the simulation results, so as to ensure that the hull structure alignment and weld gaps meet relevant precision requirements; and during half-hull joining, the offset positional relationships between the reference half-hull and other half-hulls to be joined are controlled to be consistent, thereby ensuring the structural alignment of the half-hulls during the joining process. The off-site half-hull joining method realizes full-process precision monitoring, and improves the precision of half-hull joining while ensuring the joining efficiency.

Description

Method and device for assembling two half-ships at different locations TECHNICAL FIELD

[0001] The present application relates to the technical field of shipbuilding, in particular to a method and device for assembling two half-ships at different locations. BACKGROUND

[0002] At present, the total segment construction method is one of the most effective ways to realize efficient assembly. With the continuous improvement of lifting and transportation capacity, the trend of total segment giantization is becoming more and more obvious. As a result, multiple total segments are constructed at different locations in parallel, and then transported to the same berth for assembly, which can shorten the construction period, improve the utilization rate of the site, make the arrangement of the assembly production line more flexible, and thus effectively improve the production capacity of the assembly plant. However, higher requirements are put forward for the precision of the half-ship construction at different locations.

[0003] The current half-ship assembly method does not have a unified reference, resulting in misalignment of the half-ship assembly opening, inaccurate positioning, and poor assembly effect, which requires secondary starting and transportation, increasing the transportation cost. SUMMARY

[0004] The present application provides a method and device for assembling two half-ships at different locations, which realizes precision monitoring throughout the process, improves the precision of half-ship assembly under the premise of ensuring the assembly efficiency.

[0005] To solve the above technical problems, the present application provides a method for assembling two half-ships at different locations, comprising: determining a reference half-ship among a plurality of half-ships to be assembled;

[0006] Obtaining assembly end surface data of each half-ship to be assembled;

[0007] Based on the assembly end surface data, each half-ship to be assembled is sequentially simulated for two-by-two assembly, and an assembly simulation result is obtained;

[0008] Determining a correction allowance and an assembly gap based on the assembly simulation result;

[0009] According to the correction allowance, the structure of each half-ship to be assembled is corrected;

[0010] According to the assembly gap, a guide and stop base is set on each half-ship to be assembled, and the reference half-ship is used as a positioning reference, and a traction device is used to assemble each half-ship to be assembled to the reference half-ship;

[0011] In the assembly process, the guide and stop base is used to judge the assembly precision, and when the assembly precision meets the predetermined precision requirement, the half-ship assembly is determined to be completed.

[0012] Further, the assembly end surface data of each half-ship to be assembled is obtained, specifically:

[0013] measure three-dimensional data of a plurality of half-ships to be closed;

[0014] construct a three-dimensional coordinate system of each of the half-ships to be closed based on the three-dimensional data of the half-ships to be closed;

[0015] obtain closing end surface data of each of the half-ships to be closed in the three-dimensional coordinate system of the half-ships to be closed;

[0016] The three-dimensional coordinate systems of all the half-ships to be closed are established in the same precision control network.

[0017] Further, the measurement of the three-dimensional data of the plurality of half-ships to be closed is specifically as follows:

[0018] measure hull parameters of the plurality of half-ships to be closed; the hull parameters include a hull centerline, a total section loading rib inspection line, a half-ship port side longitudinal section line, and a half-ship starboard side longitudinal section line;

[0019] measure ship moving carrier parameters corresponding to the plurality of half-ships to be closed; the ship moving carrier parameters include a berth centerline, a track centerline, and a track inspection line.

[0020] Further, before the analysis of the closing end surface flatness of each of the half-ships to be closed based on the closing end surface data, the method further comprises:

[0021] obtain position parameters of a reference half-ship and a reference carrier in the three-dimensional coordinate system of the reference half-ship, and generate a relative size relationship;

[0022] adjust half-ship positions and carrier positions of the plurality of half-ships to be closed according to the relative size relationship, obtain adjusted half-ship position parameters and carrier position parameters, and update the three-dimensional coordinate system of the corresponding half-ships to be closed.

[0023] Further, the obtaining of the position parameters of the reference half-ship and the reference carrier in the three-dimensional coordinate system of the reference half-ship, and the generation of the relative size relationship are specifically as follows:

[0024] obtain a hull centerline of the reference half-ship and a berth centerline in the three-dimensional coordinate system of the reference half-ship;

[0025] analyze the three-dimensional relative positions of the hull centerline of the reference half-ship and the berth centerline, and generate the relative size relationship.

[0026] Further, the adjustment of the half-ship positions and the carrier positions of the plurality of half-ships to be closed according to the relative size relationship, the obtaining of the adjusted half-ship position parameters and the carrier position parameters, and the updating of the three-dimensional coordinate system of the corresponding half-ships to be closed are specifically as follows:

[0027] for each of the half-ships to be closed except the reference half-ship, obtain a hull centerline and a berth centerline in the three-dimensional coordinate system;

[0028] analyzing the three-dimensional relative positions of the hull centerline and the berth centerline respectively;

[0029] comparing the three-dimensional relative positions with the relative size relationship;

[0030] when the three-dimensional relative positions are inconsistent with the relative size relationship, adjusting the position of the ship moving carrier based on the hull centerline;

[0031] after the position of the ship moving carrier is adjusted, reacquiring the ship moving carrier parameters and updating the three-dimensional coordinate system of the corresponding half-ship to be closed based on the ship moving carrier parameters.

[0032] Further, based on the closing end surface data, the two-by-two closing simulation is sequentially performed on each half-ship to be closed to obtain the closing simulation result, specifically:

[0033] a plurality of measurement points are determined in the closing end surface data of each half-ship to be closed; wherein the plurality of measurement points are distributed on the length reference line, the width reference line and the depth reference line;

[0034] the two-by-two closing simulation is performed on each half-ship to be closed, and the structural misalignment deviation after the simulation closing is analyzed by comparing the plurality of measurement points on the two half-ships to be closed;

[0035] the end surface flatness analysis of the closing end surface of each half-ship to be closed is performed based on the plurality of measurement points on the length reference line, and the end surface pre-repair amount is obtained;

[0036] the correction allowance and the closing gap are determined based on the structural misalignment deviation and the end surface pre-repair amount, and the closing simulation result is generated; wherein the correction allowance includes the correction allowance in the length direction, the correction allowance in the width direction and the correction allowance in the depth direction.

[0037] Further, the plurality of measurement points are determined in the closing end surface data of each half-ship to be closed, specifically:

[0038] the data corresponding to a plurality of preset mandatory ship structures are acquired in the closing end surface data of each half-ship to be closed;

[0039] a plurality of mandatory measurement points are selected in the data corresponding to the plurality of mandatory ship structures;

[0040] interpolation is performed in the plurality of mandatory measurement points, and a plurality of selected measurement points are selected;

[0041] the plurality of mandatory measurement points and the plurality of selected measurement points are determined as the measurement points of the half-ship to be closed.

[0042] Further, the hull structure to be measured comprises a hull centerline, a total section mounting rib inspection line, a half-ship port longitudinal section line, a half-ship starboard longitudinal section line, a partial total section waterline reference line, and a closing end surface plate contour.

[0043] Further, the structure of each half-ship to be closed is modified according to the to-be-modified allowance, specifically as follows:

[0044] A plurality of structures to be modified are determined in the to-be-modified allowance;

[0045] Importance of each structure to be modified is judged;

[0046] Through importance analysis, the plurality of structures to be modified are classified into a plurality of main structures and a plurality of secondary structures;

[0047] Each main structure is modified according to the to-be-modified allowance;

[0048] Each secondary structure is simulatedly modified according to the to-be-modified allowance, and whether the simulatedly modified secondary structure affects the main structure is analyzed;

[0049] When the simulatedly modified secondary structure does not affect the main structure, each secondary structure is modified according to the to-be-modified allowance.

[0050] Further, the guide stop base is arranged on each half-ship to be closed according to the closing gap, and the reference half-ship is taken as a positioning reference, and each half-ship to be closed is closed to the reference half-ship by using a traction device, specifically as follows:

[0051] A guide stop base with a corresponding size is selected according to the closing gap, and the guide stop base is installed on the closing end surface of each half-ship to be closed;

[0052] The reference half-ship is taken as a positioning reference, and each half-ship to be closed is closed to the reference half-ship by using a traction device.

[0053] Further, the reference half-ship is taken as a positioning reference, and each half-ship to be closed is closed to the reference half-ship by using a traction device, specifically as follows:

[0054] In the process of closing each half-ship to be closed to the reference half-ship by using a traction device, the offset positional relationship between the reference half-ship and the reference carrier is monitored, and the offset positional relationship between each half-ship to be closed and the ship-moving carrier corresponding to each half-ship to be closed is monitored, and the offset positional relationship between each half-ship to be closed and the ship-moving carrier corresponding to each half-ship to be closed is controlled to be consistent with the offset positional relationship between the reference half-ship and the reference carrier.

[0055] Further, the offset positional relationship between the reference half-ship and the reference carrier is monitored, specifically as follows:

[0056] Monitoring the offset positional relationship between the centerline of the reference half-ship and the hull centerline of the reference carrier;

[0057] Monitoring the offset positional relationship between the half-ship port longitudinal centerline of the reference half-ship and the hull centerline of the reference carrier;

[0058] Monitoring the offset positional relationship between the half-ship starboard longitudinal centerline of the reference half-ship and the hull centerline of the reference carrier.

[0059] Further, the guiding stop base is used to judge the closing precision in the closing process, and when the closing precision meets the preset precision requirement, it is determined that the half-ship closing is completed, and specifically, the following steps are included:

[0060] The closing precision is judged according to the distance between the guiding stop bases in the closing process;

[0061] When the two guiding stop bases are attached, it is determined that the current closing precision meets the preset precision requirement, and the half-ship closing is completed.

[0062] The application provides a half-ship closing method in different places, three-dimensional data of different half-ships to be closed are established in the same precision measurement and control network, so that the positioning reference lines of different half-ships to be closed built in different places are consistent, and the precision error after closing is reduced; the reference half-ship is determined before the half-ships are closed, and the relative positional relationship between each half-ship to be closed and the corresponding ship carrier is kept consistent, so that the misalignment of the half-ships to be closed due to the offset caused by the transportation is avoided; the closing simulation is performed before the half-ships are closed, and each half-ship to be closed is corrected according to the simulation result, so that the hull structure alignment and the seam gap meet the related precision requirements; during the closing of the half-ships, the offset positional relationship between the reference half-ship and the other half-ships to be closed is kept consistent in real time, and the half-ship structure alignment in the closing process is ensured. The application realizes the whole-process precision monitoring, improves the precision of the half-ship closing under the premise of ensuring the closing efficiency.

[0063] Correspondingly, the application provides a half-ship closing device in different places, which comprises a connection module, an upgrade package generation module, a sending module and a verification module;

[0064] The connection module is used for the reference determination module, the data acquisition module, the closing simulation module, the simulation result determination module, the correction module, the closing module and the judgment module;

[0065] The reference determination module is used for determining the reference half-ship in the plurality of half-ships to be closed;

[0066] The data acquisition module is used for acquiring the closing end surface data of each half-ship to be closed;

[0067] The closing simulation module is configured to simulate the closing of each pair of the to-be-closed half ships based on the closing end face data, and obtain a closing simulation result.

[0068] The simulation result determination module is configured to determine a to-be-corrected allowance and a closing gap based on the closing simulation result.

[0069] The correction module is configured to correct the structure of each to-be-closed half ship according to the to-be-corrected allowance.

[0070] The closing module is configured to set a guide and stop base on each to-be-closed half ship according to the closing gap, and to close each to-be-closed half ship to the reference half ship by using a traction device with the reference half ship as a positioning reference.

[0071] The judgment module is configured to judge the closing precision by using the guide and stop base during the closing process, and to determine that the half ship closing is completed when the closing precision meets a preset precision requirement.

[0072] The application provides a half ship closing device, which is based on the organic combination of modules, and establishes the three-dimensional data of different to-be-closed half ships in the same precision measurement and control network, so that the positioning reference lines of different to-be-closed half ships built in different places are consistent, and the precision error after closing is reduced. The reference half ship is determined before closing the half ships, and the relative position relationship between each to-be-closed half ship and the corresponding ship carrier is kept consistent, so that the misalignment of the to-be-closed half ships caused by the deviation of the to-be-closed half ships during the transportation is avoided. The closing simulation is performed before closing the half ships, and each to-be-closed half ship is corrected according to the simulation result, so that the structure alignment of the ship body and the gap between the welds meet the relevant precision requirements. During the closing of the half ships, the deviation position relationship between the reference half ship and the other to-be-closed half ships is controlled in real time, so that the structure alignment of the half ships during the closing process is ensured. The application realizes the whole-process precision monitoring, improves the precision of the half ship closing under the premise of ensuring the closing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0073] Fig. 1 is a flowchart of an embodiment of the half ship closing method provided by the application;

[0074] Fig. 2 is a structural schematic view of an embodiment of the guide and stop base provided by the application;

[0075] Fig. 3 is a structural schematic view of an embodiment of the half ship closing device provided by the application. DETAILED DESCRIPTION

[0076] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described in order to make the technical solutions in the embodiments of the present application apparent to those skilled in the art. Obviously, the described embodiments are only a part rather than all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts should fall into the scope of the present application.

[0077] The flowchart shown in the drawings is only an example and does not necessarily include all the contents and operations / steps, nor does it have to be executed in the order described. For example, some operations / steps can be further decomposed, combined or partially merged, so the actual execution order can be changed according to the actual situation.

[0078] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0079] Embodiment 1

[0080] Referring to FIG. 1, it is a flowchart of an embodiment of the method for assembling a ship from half-ships in different locations provided by the present application, which includes steps 101 to 107, and each step is as follows:

[0081] Step 101: determining a reference half-ship among a plurality of half-ships to be assembled.

[0082] In the first embodiment of the present application, during the shipbuilding process, due to the characteristics of large weight and large size of the ship, the ship is generally built in sections. When each half-ship is built on its own berth, the half-ships are assembled by using the total section construction method. One of the plurality of half-ships is taken as a reference half-ship, which is used as a positioning reference, and the remaining half-ships can be transported and assembled with the reference half-ship. The present application determines a reference half-ship, thereby determining the assembly reference, which greatly improves the accuracy of half-ship assembly.

[0083] Step 102: obtaining assembly end surface data of each half-ship to be assembled.

[0084] Further, in the first embodiment of the present application, the assembly end surface data of each half-ship to be assembled is obtained, specifically as follows:

[0085] measuring three-dimensional data of a plurality of half-ships to be assembled;

[0086] constructing a three-dimensional coordinate system of each half-ship to be assembled based on the three-dimensional data of each half-ship to be assembled;

[0087] obtaining assembly end surface data of each half-ship to be assembled in the three-dimensional coordinate system of each half-ship to be assembled;

[0088] All three-dimensional coordinate systems of the half-ships to be closed are established in the same precision control network.

[0089] In the first embodiment of the present application, the half-ships to be closed are simulated to be closed before the actual closing of the half-ships, and the parameters of the half-ships are adjusted according to the simulation effect to achieve a higher closing precision. When the simulation is performed, the closing end surface data of the half-ships to be closed is obtained, and the simulation is performed by using a computer algorithm. In order to achieve a better simulation effect, the closing end surface data used for the simulation is three-dimensional data, which is obtained by actually measuring the half-ships to be closed. Specifically, the relevant three-dimensional data of the half-ships to be closed and the corresponding ship moving carriers is actually measured by using a measuring device. The ship coordinate system is obtained from the drawings of the half-ships to be closed, and the three-dimensional coordinate system of each half-ship to be closed is constructed based on the actually measured three-dimensional data and the ship coordinate system. The three-dimensional coordinate system contains all three-dimensional data of the half-ships to be closed and the corresponding ship moving carriers. The three-dimensional data of different half-ships to be closed is established in the same precision control network, so that the positioning reference lines of different half-ships to be closed built in different places are consistent, thereby ensuring the accurate positioning of the half-ships to be closed.

[0090] Further, in the first embodiment of the present application, the three-dimensional data of the half-ships to be closed is measured, specifically as follows.

[0091] The ship body parameters of the half-ships to be closed are measured, and the ship body parameters include the ship body center line, the total segment loading rib inspection line, the half-ship left side longitudinal center line and the half-ship right side longitudinal center line.

[0092] The ship moving carrier parameters corresponding to the half-ships to be closed are measured, and the ship moving carrier parameters include the berth center line, the track center line and the track inspection line.

[0093] In the first embodiment of the present application, the three-dimensional coordinate system of the half-ships to be closed is mainly measured by the ship body center line, the total segment loading rib inspection line, the half-ship left side longitudinal center line and the half-ship right side longitudinal center line of the half-ships to be closed. When the half-ships to be closed are completed, the half-ships to be closed are generally moved by the track. Therefore, the ship moving carrier parameters corresponding to the half-ships to be closed generally include the berth center line, the track center line and the track inspection line.

[0094] Further, in the first embodiment of the present application, before the flatness of the closing end surface of each half-ship to be closed is analyzed based on the closing end surface data, the following steps are further included.

[0095] The position parameters of the reference half-ship and the position parameters of the reference carrier are obtained in the three-dimensional coordinate system of the reference half-ship, and the relative size relationship is generated;

[0096] The half-ship positions and the carrier positions of the half-ships to be closed are adjusted according to the relative size relationship, the adjusted half-ship position parameters and the carrier position parameters are obtained, and the three-dimensional coordinate system of the corresponding half-ship to be closed is updated.

[0097] In the first embodiment of the present application, before the to-be-closed half ships are closed and moved, the relative positions of the to-be-closed half ships and the corresponding ship moving carriers are controlled to be consistent, so that the precision requirements of the to-be-closed half ships are consistent, thereby improving the precision of the half ship closing. Specifically, the measured position parameters of the reference half ship and the position parameters of the reference carrier are obtained from the three-dimensional coordinate system of the reference half ship, the three-dimensional position relationship between the reference half ship and the reference carrier is analyzed, and the carrier positions of the remaining to-be-closed half ships are adjusted based on the reference.

[0098] Further, in the first embodiment of the present application, the position parameters of the reference half ship and the position parameters of the reference carrier are obtained in the three-dimensional coordinate system of the reference half ship, and the relative size relationship is generated, specifically:

[0099] The centerline of the ship body and the centerline of the berth of the reference half ship are obtained in the three-dimensional coordinate system of the reference half ship.

[0100] The three-dimensional relative positions of the centerline of the ship body and the centerline of the berth of the reference half ship are analyzed to generate the relative size relationship.

[0101] In the first embodiment of the present application, by analyzing the three-dimensional position relationship between the centerline of the ship body and the centerline of the berth of the reference half ship, the relative size relationship as a reference can be obtained. The centerline of the ship body and the centerline of the berth can clearly indicate the position relationship between the reference half ship and the center of the reference carrier, so that a more accurate reference relative relationship can be obtained by analyzing these two parameters.

[0102] Further, in the first embodiment of the present application, the positions of the half ships and the positions of the carriers of the to-be-closed half ships are adjusted according to the relative size relationship, the adjusted half ship position parameters and carrier position parameters are obtained, and the three-dimensional coordinate system of the corresponding to-be-closed half ship is updated, specifically:

[0103] For each to-be-closed half ship except the reference half ship, the centerline of the ship body and the centerline of the berth are obtained in the three-dimensional coordinate system;

[0104] The three-dimensional relative positions of the centerline of the ship body and the centerline of the berth are analyzed respectively;

[0105] The three-dimensional relative positions are compared with the relative size relationship;

[0106] When the three-dimensional relative positions are inconsistent with the relative size relationship, the position of the ship moving carrier is adjusted based on the centerline of the ship body;

[0107] After the position of the ship moving carrier is adjusted, the carrier parameters are re-obtained, and the three-dimensional coordinate system of the corresponding to-be-closed half ship is updated according to the carrier parameters.

[0108] In the first embodiment of the present application, the relative size relationship between the reference half-ship and the reference carrier is taken as a template, the distances between the remaining groups of to-be-joined half-ships and their corresponding ship-moving carriers are measured respectively, the measured distances are compared with the relative size relationship as the template, and a suitable deviation threshold can be set. If the distance data of the to-be-joined half-ships exceeds the deviation threshold, the positions of the corresponding ship-moving carriers of the to-be-joined half-ships need to be adjusted so that the distance data is within the deviation threshold. The present application sets the relative size relationship as the template to keep the distances between all to-be-joined half-ships and their corresponding ship-moving carriers consistent, thereby reducing the precision error after joining before the half-ship joining, and improving the joining precision.

[0109] Step 103: based on the joining end face data, two-by-two joining simulation is performed on each to-be-joined half-ship in turn to obtain a joining simulation result.

[0110] Further, in the first embodiment of the present application, based on the joining end face data, two-by-two joining simulation is performed on each to-be-joined half-ship in turn to obtain a joining simulation result, specifically:

[0111] A plurality of measurement points are determined in the joining end face data of each to-be-joined half-ship; wherein the plurality of measurement points are distributed on the length reference line, the width reference line and the depth reference line respectively;

[0112] Two-by-two joining simulation is performed on each to-be-joined half-ship, and the positional deviation of the simulated joined structure is analyzed by comparing the plurality of measurement points on the two to-be-joined half-ships;

[0113] According to the plurality of measurement points on the length reference line, end face flatness analysis is performed on the joining end face of each to-be-joined half-ship to obtain an end face pre-correction amount;

[0114] Based on the positional deviation of the structure and the end face pre-correction amount, a to-be-corrected allowance and a joining gap are determined to generate a joining simulation result; wherein the to-be-corrected allowance includes a to-be-corrected allowance in the length direction, a to-be-corrected allowance in the width direction and a to-be-corrected allowance in the depth direction.

[0115] In the first embodiment of the present application, before the half-ship joining and moving, based on the joining end face precision data obtained in the three-dimensional coordinate system, joining simulation can be performed on each to-be-joined half-ship to obtain the reference line correction values in the length, width and depth directions, thereby maximizing the adjustment of the structure before joining and improving the joining efficiency.

[0116] In the first embodiment of the present application, the closing end face data obtained in the three-dimensional coordinate system includes but is not limited to the closing end face outer plate profile and the main longitudinal continuous wall plate, the measurement data on each layer platform plate (inner bottom plate, intermediate deck, main deck). The measurement point comparison is carried out on the to-be-closed half ship, and the current closing end face situation can be analyzed. The measurement point data obtained in the three-dimensional coordinate system is all spatial three-dimensional coordinates. By comparing the model theoretical value with the measured point, the deviation between the measured three-dimensional coordinates and the theoretical coordinates can be obtained, so that the end face precision data can be judged, analyzed and adjusted. Since the theoretical data of the two closing end face measurement points should be the same when the two closing end face measurement points are consistent, the positional deviation of the closed structure can be pre-judged and analyzed before the half ship is closed by comparing the two closing end face data. At the same time, according to the measurement point data of the closing end face in the length direction of the ship, the flatness of the closing end face can be analyzed, and the trimming amount of the closing section can be obtained. Therefore, after the positional deviation of the structure and the trimming amount of the closing section are obtained by analysis, the closing simulation result can be generated, which provides a theoretical basis for the half ship trimming.

[0117] Further, in the first embodiment of the present application, a plurality of measurement points are determined in the closing end face data of each to-be-closed half ship, specifically:

[0118] a plurality of preset measurement data corresponding to the necessary ship body structures are obtained in the closing end face data of each to-be-closed half ship;

[0119] a plurality of necessary measurement points are selected from the data corresponding to the necessary ship body structures;

[0120] interpolation is performed on the plurality of necessary measurement points to select a plurality of selected measurement points;

[0121] the plurality of necessary measurement points and the plurality of selected measurement points are determined as the measurement points of the to-be-closed half ship.

[0122] Further, in the first embodiment of the present application, the necessary ship body structures include the ship centerline, the total section loading rib inspection line, the half ship port side longitudinal section line, the half ship starboard side longitudinal section line, the total section waterline reference line and the closing end face outer plate profile.

[0123] In the first embodiment of the present application, when the closing simulation is performed, the measurement points selected on the to-be-closed half ship are divided into necessary points and selected points. The necessary points are the points on the main structures of the to-be-closed half ship, such as the ship centerline, the total section waterline reference line, the longitudinal section reference line, the points on the important and main structures, the line type change (turning) points, etc. The selected points are selected according to the number and distribution of the measurement points, the distance threshold value between the measurement points is set, and a plurality of selected points are selected on the non-important structure, and the distance between the selected points does not exceed the preset distance threshold value.

[0124] Step 104: determining the correction margin and the closing gap according to the closing simulation result.

[0125] Step 105: correcting the structure of each half ship to be closed according to the correction margin.

[0126] Further, in the first embodiment of the present application, the structure of each half ship to be closed is corrected according to the correction margin, specifically:

[0127] a plurality of structures to be corrected are determined in the correction margin;

[0128] the importance of each structure to be corrected is judged;

[0129] through the importance analysis, the plurality of structures to be corrected are classified into a plurality of main structures and a plurality of secondary structures;

[0130] each main structure is corrected according to the correction margin;

[0131] each secondary structure is simulatedly corrected according to the correction margin, and whether the simulatedly corrected secondary structure affects the main structure is analyzed;

[0132] when the simulatedly corrected secondary structure does not affect the main structure, each secondary structure is corrected according to the correction margin.

[0133] In the first embodiment of the present application, after the correction margin in the three directions of the ship length, the ship width and the depth is obtained through the simulation analysis, the main structure and the secondary structure of the structure to be corrected are prioritized to ensure the alignment of the main structure, and a reasonable correction scheme is obtained. For example, the main structure includes the plate contour, the longitudinal wall, the platform plate and the like. If the main structure is involved in the correction margin, the main structure is prioritized to be trimmed to ensure the correct alignment of the main structure. If the secondary structure is involved in the correction margin, it is necessary to judge whether the trimming of the secondary structure will affect the alignment of the main structure. If not, the secondary structure can be directly corrected. If yes, the secondary structure needs to be adjusted under the premise of ensuring the alignment of the main structure.

[0134] In the first embodiment of the present application, the simulation modification is performed on each secondary structure according to the modification margin to be modified, and whether the secondary structure after the simulation modification has an impact on the primary structure can be analyzed. For example, if the simulation modification is performed on the secondary structure, and it is found that the simulation modification has an adverse impact on the main dimension of the hull structure, such as the molded width, the molded depth, the layer height, etc., it is considered that the modification of the secondary structure has an impact on the primary structure. Or, if the simulation modification is performed on the secondary structure, and it is found that the simulation modification has a misalignment impact on the base alignment strengthening structure, it is considered that the modification of the secondary structure has an impact on the primary structure. Or, if the simulation modification is performed on the secondary structure, and it is found that the simulation modification has an impact on the fitting of the fitting joint, such as the fitting flange pipe, etc., it is also considered that the modification of the secondary structure has an impact on the primary structure. Therefore, after the simulation modification is performed on each secondary structure, it can be concluded whether the modification of the secondary structure has an impact on the primary structure, so as to determine whether the secondary structure is modified.

[0135] Step 106: According to the fitting gap, guide and stop bases are arranged on each half ship to be fitted, and the reference half ship is used as a positioning reference, and a traction device is used to fit each half ship to be fitted to the reference half ship.

[0136] Further, in the first embodiment of the present application, according to the fitting gap, guide and stop bases are arranged on each half ship to be fitted, and the reference half ship is used as a positioning reference, and a traction device is used to fit each half ship to be fitted to the reference half ship, specifically:

[0137] According to the fitting gap, guide and stop bases of corresponding sizes are selected and installed on the fitting end surface of each half ship to be fitted;

[0138] The reference half ship is used as a positioning reference, and a traction device is used to fit each half ship to be fitted to the reference half ship.

[0139] In the first embodiment of the present application, according to the fitting simulation result, the fitting joint gap of the fitting end surface can be obtained, and therefore a guide and stop base of a suitable size is selected according to the gap, and the guide and stop base is installed at a suitable position on the fitting end surface according to the simulation result. After the guide and stop base is installed, a traction device is used to fit each half ship to be fitted to the reference half ship.

[0140] Further, in the first embodiment of the present application, the reference half ship is used as a positioning reference, and a traction device is used to fit each half ship to be fitted to the reference half ship, specifically:

[0141] In the process of folding each to-be-folded half-ship to the reference half-ship by using the traction device, the offset positional relationship between the reference half-ship and the reference carrier is monitored, and the offset positional relationship between each to-be-folded half-ship and the corresponding ship-moving carrier of each to-be-folded half-ship is monitored, and the offset positional relationship between each to-be-folded half-ship and the corresponding ship-moving carrier of each to-be-folded half-ship is controlled to be consistent with the offset positional relationship between the reference half-ship and the reference carrier.

[0142] Further, in the first embodiment of the present application, the offset positional relationship between the reference half-ship and the reference carrier is monitored, specifically:

[0143] monitoring the offset positional relationship between the half-ship centerline of the reference half-ship and the hull centerline of the reference carrier;

[0144] monitoring the offset positional relationship between the half-ship port longitudinal centerline of the reference half-ship and the hull centerline of the reference carrier;

[0145] monitoring the offset positional relationship between the half-ship starboard longitudinal centerline of the reference half-ship and the hull centerline of the reference carrier.

[0146] In the first embodiment of the present application, in the process of folding the half-ship, in order to ensure the folding accuracy, the relative position between the to-be-folded half-ship and its corresponding ship-moving carrier is monitored in real time, and the relative position between the to-be-folded half-ship and its corresponding ship-moving carrier is controlled to be consistent with the relative position between the reference half-ship and the reference carrier. Specifically, the left and right deviations between the half-ship centerline, the half-ship port longitudinal centerline and the half-ship starboard longitudinal centerline of the reference half-ship and the hull centerline of the reference carrier are monitored respectively, and the monitoring data of the reference half-ship is used as a template. At the same time, the left and right deviations between the half-ship centerline, the half-ship port longitudinal centerline and the half-ship starboard longitudinal centerline of each to-be-folded half-ship and the hull centerline of the corresponding ship-moving carrier are monitored. The left and right deviations between the half-ship centerline, the half-ship port longitudinal centerline and the half-ship starboard longitudinal centerline of each to-be-folded half-ship and the hull centerline of the corresponding ship-moving carrier are controlled to be consistent with the template data measured on the reference half-ship, so that all to-be-folded half-ships can be simultaneously moved to the left or to the right, or simultaneously kept unchanged. The present application monitors the offset positional relationship between each to-be-folded half-ship and its corresponding ship-moving carrier in real time during the folding process, which can avoid human errors and measurement blind spots, and improve the folding accuracy during the folding process.

[0147] Step 107: determining that the half-ship folding is completed when the folding accuracy meets the preset accuracy requirement by using the guide and stop base during the folding process.

[0148] Further, in the first embodiment of the present application, the folding accuracy is judged by using the guide and stop base during the folding process, and the half-ship folding is determined to be completed when the folding accuracy meets the preset accuracy requirement, specifically:

[0149] Judge the closing precision according to the distance between the guide stop bases during closing;

[0150] When the two guide stop bases are attached, it is determined that the current closing precision meets the preset precision requirement, and it is determined that the half-ship closing is completed.

[0151] In the first embodiment of the present application, referring to Figure 2, it is a structural schematic diagram of an embodiment of the guide stop base provided by the present application. According to the simulation analysis result, a group of guide stop bases can be arranged on the left and right sides of the end surface of each half-ship to be closed. When the guide stop bases of the two half-ships contact and attach to each other, it indicates that the gap between the two closing surfaces reaches the expected result of the simulation analysis. At this time, the gap between the joint seams of the closing end surface meets the welding requirement, and the control of the closing movement is ended. By installing the guide stop base on the closing end surface, the present application can prevent the half-ship from stopping too early or too late during the closing movement, avoid the large gap caused by stopping too early, and thus the secondary start of the movement, thereby improving the movement cost. It also avoids the collision of the half-ship structure caused by stopping too late.

[0152] In summary, the first embodiment of the present application provides a half-ship closing method in different places. The three-dimensional data of different half-ships to be closed are established in the same precision measurement and control network, so that the positioning reference lines of different half-ships to be closed built in different places are consistent, and the precision error after closing is reduced. Before closing the half-ships, the reference half-ship is determined, and the relative position relationship between each half-ship to be closed and its corresponding ship carrier is kept consistent, thereby avoiding the misalignment of the half-ship closing caused by the deviation of the half-ship to be closed during the movement. Before closing the half-ships, the closing simulation is performed, and the half-ships to be closed are corrected according to the simulation result, so as to ensure that the ship structure alignment and the welding gap meet the related precision requirements. When the half-ships are closed, the deviation position relationship of the reference half-ship and the other half-ships to be closed is controlled to be consistent, thereby ensuring the alignment of the half-ship structure during the closing process. The present application realizes the whole-process precision monitoring, improves the precision of the half-ship closing under the premise of ensuring the closing efficiency, and ensures that the precision during the half-ship construction in different places and the overall precision of the whole ship after the half-ship closing meet the related requirements of the shipbuilding quality standards.

[0153] Embodiment 2

[0154] Referring to Figure 3, it is a structural schematic diagram of an embodiment of the half-ship closing device provided by the present application. The device includes a reference determination module 201, a data acquisition module 202, a closing simulation module 203, a simulation result determination module 204, a correction module 205, a closing module 206, and a judgment module 207.

[0155] The reference determination module 201 is used to determine the reference half-ship in a plurality of half-ships to be closed.

[0156] The data acquisition module 202 is used to acquire the closing end surface data of each half-ship to be closed.

[0157] The closing simulation module 203 is configured to simulate the closing of each pair of the to-be-closed half ships based on the closing end surface data, and obtain a closing simulation result;

[0158] The simulation result determination module 204 is configured to determine a to-be-corrected allowance and a closing gap based on the closing simulation result;

[0159] The correction module 205 is configured to correct the structure of each to-be-closed half ship according to the to-be-corrected allowance;

[0160] The closing module 206 is configured to set a guide and stop base on each to-be-closed half ship according to the closing gap, and use a traction device to close each to-be-closed half ship to the reference half ship by taking the reference half ship as a positioning reference;

[0161] The judgment module 207 is configured to judge the closing precision by using the guide and stop base during the closing process, and determine that the half ship closing is completed when the closing precision meets a preset precision requirement.

[0162] Further, in the second embodiment of the present application, the closing end surface data of each to-be-closed half ship is obtained, specifically as follows:

[0163] Three-dimensional data of a plurality of to-be-closed half ships is measured;

[0164] A three-dimensional coordinate system of each to-be-closed half ship is constructed based on the three-dimensional data of the to-be-closed half ship;

[0165] The closing end surface data of each to-be-closed half ship is obtained in the three-dimensional coordinate system of the to-be-closed half ship;

[0166] The three-dimensional coordinate system of all to-be-closed half ships is established in the same precision control network.

[0167] Further, in the second embodiment of the present application, the three-dimensional data of a plurality of to-be-closed half ships is measured, specifically as follows:

[0168] Ship body parameters of a plurality of to-be-closed half ships are measured; the ship body parameters include a ship body center line, a total section loading rib inspection line, a half ship port side longitudinal section line and a half ship starboard side longitudinal section line;

[0169] Ship moving carrier parameters corresponding to a plurality of to-be-closed half ships are measured; the ship moving carrier parameters include a berth center line, a track center line and a track inspection line.

[0170] Further, in the second embodiment of the present application, before analyzing the closing end surface flatness of each to-be-closed half ship based on the closing end surface data, the method further includes:

[0171] The position parameter of the reference half-ship and the position parameter of the reference carrier are acquired in the three-dimensional coordinate system of the reference half-ship, and a relative size relationship is generated;

[0172] The half-ship position and the carrier position of each half-ship to be closed are adjusted according to the relative size relationship, the adjusted half-ship position parameter and the carrier position parameter are acquired, and the three-dimensional coordinate system of the corresponding half-ship to be closed is updated.

[0173] Further, in the second embodiment of the present application, the position parameter of the reference half-ship and the position parameter of the reference carrier are acquired in the three-dimensional coordinate system of the reference half-ship, and a relative size relationship is generated, specifically:

[0174] The centerline of the hull of the reference half-ship and the centerline of the berth of the reference half-ship are acquired in the three-dimensional coordinate system of the reference half-ship;

[0175] The three-dimensional relative positions of the centerline of the hull of the reference half-ship and the centerline of the berth of the reference half-ship are analyzed, and the relative size relationship is generated.

[0176] Further, in the second embodiment of the present application, the half-ship position and the carrier position of each half-ship to be closed are adjusted according to the relative size relationship, the adjusted half-ship position parameter and the carrier position parameter are acquired, and the three-dimensional coordinate system of the corresponding half-ship to be closed is updated, specifically:

[0177] For each half-ship to be closed except the reference half-ship, the centerline of the hull and the centerline of the berth are acquired in the three-dimensional coordinate system, respectively;

[0178] The three-dimensional relative positions of the centerline of the hull and the centerline of the berth are analyzed, respectively;

[0179] The three-dimensional relative positions are compared with the relative size relationship;

[0180] When the three-dimensional relative positions are inconsistent with the relative size relationship, the position of the ship-moving carrier is adjusted based on the centerline of the hull;

[0181] After the position of the ship-moving carrier is adjusted, the carrier parameter is re-acquired, and the three-dimensional coordinate system of the corresponding half-ship to be closed is updated according to the carrier parameter.

[0182] Further, in the second embodiment of the present application, based on the closing end surface data, each half-ship to be closed is sequentially closed in pairs for simulation, and a closing simulation result is obtained, specifically:

[0183] A plurality of measurement points are determined in the closing end surface data of each half-ship to be closed; wherein the plurality of measurement points are distributed on the length reference line, the width reference line and the depth reference line, respectively;

[0184] Simulate the two-by-two closing of each to-be-closed half ship, analyze the positional deviation of the structure after the simulation closing by comparing a plurality of measuring points on the two to-be-closed half ships, and analyze the positional deviation of the structure after the simulation closing;

[0185] According to a plurality of measuring points on the ship length reference line, analyze the end surface flatness of the closing end surface of each to-be-closed half ship, and obtain the end surface pre-repair amount;

[0186] Determine the to-be-repaired allowance and the closing gap based on the positional deviation of the structure and the end surface pre-repair amount, and generate a closing simulation result; wherein the to-be-repaired allowance includes a to-be-repaired allowance in the ship length direction, a to-be-repaired allowance in the ship width direction, and a to-be-repaired allowance in the depth direction.

[0187] Further, in the second embodiment of the present application, a plurality of measuring points are determined in the closing end surface data of each to-be-closed half ship, specifically:

[0188] Obtain data corresponding to a plurality of preset mandatory ship structures from the closing end surface data of each to-be-closed half ship;

[0189] Select a plurality of mandatory measuring points from the data corresponding to the plurality of mandatory ship structures;

[0190] Interpolate a plurality of selected measuring points from the plurality of mandatory measuring points;

[0191] The plurality of mandatory measuring points and the plurality of selected measuring points are determined as the measuring points of the to-be-closed half ship.

[0192] Further, in the second embodiment of the present application, the mandatory ship structures include a ship centerline, a total section loading rib inspection line, a half ship port side longitudinal centerline, a half ship starboard side longitudinal centerline, a sectional waterline reference line, and a closing end surface outer plate contour.

[0193] Further, in the second embodiment of the present application, the structure of each to-be-closed half ship is modified according to the to-be-repaired allowance, specifically:

[0194] Determine a plurality of to-be-repaired structures in the to-be-repaired allowance;

[0195] Judge the importance of each to-be-repaired structure;

[0196] Classify the plurality of to-be-repaired structures into a plurality of main structures and a plurality of secondary structures through importance analysis;

[0197] Modify each main structure according to the to-be-repaired allowance;

[0198] Simulate the modification of each secondary structure according to the to-be-repaired allowance, and analyze whether the simulated modified secondary structure affects the main structure;

[0199] When the simulation modified secondary structure does not affect the main structure, the secondary structures are modified according to the remaining amount to be modified.

[0200] Further, in the second embodiment of the present application, the guide stop bases are arranged on each of the half ships to be closed according to the closing gap, and each of the half ships to be closed is closed to the reference half ship by using the traction device with the reference half ship as the positioning reference, specifically:

[0201] The guide stop bases of corresponding sizes are selected according to the closing gap, and the guide stop bases are installed on the closing end surfaces of each of the half ships to be closed;

[0202] The reference half ship is taken as the positioning reference, and each of the half ships to be closed is closed to the reference half ship by using the traction device.

[0203] Further, in the second embodiment of the present application, the reference half ship is taken as the positioning reference, and each of the half ships to be closed is closed to the reference half ship by using the traction device, specifically:

[0204] During the process of closing each of the half ships to be closed to the reference half ship by using the traction device, the offset positional relationship between the reference half ship and the reference carrier is monitored, and the offset positional relationship between each of the half ships to be closed and the corresponding ship moving carrier of each of the half ships to be closed is monitored, and the offset positional relationship between each of the half ships to be closed and the corresponding ship moving carrier of each of the half ships to be closed is controlled to be consistent with the offset positional relationship between the reference half ship and the reference carrier.

[0205] Further, in the second embodiment of the present application, the offset positional relationship between the reference half ship and the reference carrier is monitored, specifically:

[0206] The offset positional relationship between the berth center line of the reference half ship and the hull center line of the reference carrier is monitored;

[0207] The offset positional relationship between the port longitudinal center line of the half ship of the reference half ship and the hull center line of the reference carrier is monitored;

[0208] The offset positional relationship between the starboard longitudinal center line of the half ship of the reference half ship and the hull center line of the reference carrier is monitored.

[0209] Further, in the second embodiment of the present application, the guide stop bases are used to judge the closing precision during the closing process, and when the closing precision meets the preset precision requirement, it is determined that the half ship closing is completed, specifically:

[0210] The closing precision is judged according to the distance between the guide stop bases during the closing process;

[0211] When the two guide stop bases are in contact, it is determined that the current closing precision meets the preset precision requirement, and it is determined that the half ship closing is completed.

[0212] In summary, the second embodiment of the present application provides a half-ship closing device in different places, which is based on the organic combination between modules, and establishes three-dimensional data of different half-ships to be closed in the same precision control network, so that the positioning reference lines of different half-ships to be closed built in different places are consistent, and the precision error after closing is reduced. The reference half-ship is determined before closing the half-ships, and the relative position relationship between each half-ship to be closed and the corresponding ship carrier is kept consistent, so that the misalignment of the half-ship closing whole caused by the deviation of the half-ship to be closed due to the transportation is avoided. The closing simulation is performed before closing the half-ships, and each half-ship to be closed is corrected according to the simulation results, so that the ship structure alignment and the weld gap meet the relevant precision requirements. During the closing of the half-ships, the offset position relationship of the reference half-ship and other half-ships to be closed is controlled in real time, so that the half-ship structure alignment during the closing process is ensured. The present application realizes the whole-process precision monitoring, improves the precision of the half-ship closing under the premise of ensuring the closing efficiency, and ensures that the precision during the half-ship construction in different places and the whole-ship precision after the half-ship closing meet the relevant requirements of the shipbuilding quality standards.

[0213] The above specific embodiments further illustrate the purpose, technical solutions and advantages of the present application. It should be understood that the above description is only for specific embodiments of the present application and is not intended to limit the protection scope of the present application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method of assembling a ship in a different location, characterized in that, The application relates to a method for assembling a ship, and comprises the following steps: determining a reference half-ship among a plurality of half-ships to be assembled; acquiring assembling end surface data of each half-ship to be assembled; sequentially assembling each half-ship to be assembled in pairs based on the assembling end surface data to obtain assembling simulation results; determining a to-be-corrected allowance and an assembling gap based on the assembling simulation results; correcting the structure of each half-ship to be assembled according to the to-be-corrected allowance; setting a guide and stop base on each half-ship to be assembled according to the assembling gap, taking the reference half-ship as a positioning reference, and assembling each half-ship to be assembled to the reference half-ship by using a traction device; judging assembling precision by using the guide and stop base during the assembling process, and determining that the half-ship assembling is completed when the assembling precision meets preset precision requirements; wherein the correcting the structure of each half-ship to be assembled according to the to-be-corrected allowance is specifically as follows: determining a plurality of to-be-corrected structures in the to-be-corrected allowance; judging the importance of each to-be-corrected structure; classifying the plurality of to-be-corrected structures into a plurality of main structures and a plurality of secondary structures through importance analysis; correcting each main structure according to the to-be-corrected allowance; simulating correction of each secondary structure according to the to-be-corrected allowance, and analyzing whether the simulated secondary structure affects the main structure; correcting each secondary structure according to the to-be-corrected allowance when the simulated secondary structure does not affect the main structure.

2. The method of claim 1, wherein, The acquiring assembling end surface data of each half-ship to be assembled is specifically as follows: measuring three-dimensional data of the plurality of half-ships to be assembled; constructing a three-dimensional coordinate system of each half-ship to be assembled based on the three-dimensional data of the half-ships to be assembled; acquiring assembling end surface data of each half-ship to be assembled in the three-dimensional coordinate system of the half-ship to be assembled; wherein the three-dimensional coordinate systems of all the half-ships to be assembled are established in a same precision control network.

3. The method of claim 2, wherein, The measuring three-dimensional data of the plurality of half-ships to be assembled is specifically as follows: measuring ship body parameters of the plurality of half-ships to be assembled; the ship body parameters include a ship body center line, a total section loading rib inspection line, a half-ship left side longitudinal section line and a half-ship right side longitudinal section line; measuring corresponding ship moving carrier parameters of the plurality of half-ships to be assembled; the ship moving carrier parameters include a ship berth center line, a track center line and a track inspection line.

4. The method of claim 3, wherein, Before the analyzing assembling end surface flatness of each half-ship to be assembled based on the assembling end surface data, the method further comprises the following steps: acquiring position parameters of the reference half-ship and position parameters of a reference carrier in the three-dimensional coordinate system of the reference half-ship to generate a relative size relationship; adjusting half-ship positions and carrier positions of each half-ship to be assembled according to the relative size relationship, acquiring adjusted half-ship position parameters and carrier position parameters, and updating the three-dimensional coordinate system of the corresponding half-ship to be assembled.

5. The method of claim 4, wherein, The acquiring position parameters of the reference half-ship and position parameters of a reference carrier in the three-dimensional coordinate system of the reference half-ship to generate a relative size relationship is specifically as follows: acquiring a ship body center line and a ship berth center line of the reference half-ship in the three-dimensional coordinate system of the reference half-ship; analyzing three-dimensional relative positions of the ship body center line and the ship berth center line of the reference half-ship to generate the relative size relationship.

6. The method of claim 5, wherein, The half-ship position and the carrier position of each half-ship to be closed are adjusted according to the relative size relationship, and the adjusted half-ship position parameter and carrier position parameter are obtained, and the three-dimensional coordinate system corresponding to the half-ship to be closed is updated, specifically as follows: For each half-ship to be closed except the reference half-ship, the hull centerline and the berth centerline are obtained in the three-dimensional coordinate system respectively; The three-dimensional relative positions of the hull centerline and the berth centerline are analyzed respectively; The three-dimensional relative positions are compared with the relative size relationship; When the three-dimensional relative positions are inconsistent with the relative size relationship, the position of the ship moving carrier is adjusted based on the hull centerline as the reference; After the position of the ship moving carrier is adjusted, the ship moving carrier parameter is re-obtained, and the three-dimensional coordinate system corresponding to the half-ship to be closed is updated according to the ship moving carrier parameter.

7. The offsite semi-ship closing method of claim 1, wherein, Based on the closing end surface data, each half-ship to be closed is closed in pairs in sequence to obtain closing simulation results, specifically as follows: A plurality of measuring points are determined in the closing end surface data of each half-ship to be closed; wherein the plurality of measuring points are distributed on the length reference line, the width reference line and the depth reference line respectively; Each half-ship to be closed is closed in pairs, and the structural misalignment deviation after simulation closing is analyzed by comparing the plurality of measuring points on the two half-ships to be closed; The end surface flatness of the closing end surface of each half-ship to be closed is analyzed according to the plurality of measuring points on the length reference line, and the end surface pre-repair amount is obtained; The correction allowance and the closing gap are determined based on the structural misalignment deviation and the end surface pre-repair amount, and the closing simulation results are generated; wherein the correction allowance includes the correction allowance in the length direction, the correction allowance in the width direction and the correction allowance in the depth direction.

8. The method of claim 7, wherein, The plurality of measuring points are determined in the closing end surface data of each half-ship to be closed, specifically as follows: The data corresponding to a plurality of preset necessary hull structures are obtained in the closing end surface data of each half-ship to be closed; A plurality of necessary measuring points are selected in the data corresponding to the plurality of necessary hull structures; Interpolation is performed on the plurality of necessary measuring points to select a plurality of selected measuring points; The plurality of necessary measuring points and the plurality of selected measuring points are determined as the measuring points of the half-ship to be closed.

9. The offsite semi-ship closing method of claim 8, wherein, The necessary hull structures include the hull centerline, the total segment loading rib inspection line, the half-ship port longitudinal centerline, the half-ship starboard longitudinal centerline, the total segment waterline reference line and the closing end surface plate contour.

10. The method of claim 1, wherein, According to the closing gap, guide and stop bases are arranged on each half-ship to be closed, and each half-ship to be closed is closed to the reference half-ship by using a traction device with the reference half-ship as the positioning reference, specifically as follows: Guide and stop bases of corresponding sizes are selected according to the closing gap, and the guide and stop bases are installed on the closing end surface of each half-ship to be closed; Each half-ship to be closed is closed to the reference half-ship by using a traction device with the reference half-ship as the positioning reference.

11. The offsite semi-ship closing method of claim 10, wherein, Each half-ship to be closed is closed to the reference half-ship by using a traction device with the reference half-ship as the positioning reference, specifically as follows: In the process of using the traction device to close each to-be-closed half ship to the reference half ship, the offset positional relationship between the reference half ship and the reference carrier is monitored, and the offset positional relationship between each to-be-closed half ship and the corresponding ship-moving carrier of each to-be-closed half ship is monitored, and the offset positional relationship between each to-be-closed half ship and the corresponding ship-moving carrier of each to-be-closed half ship is controlled to be consistent with the offset positional relationship between the reference half ship and the reference carrier.

12. The offsite semi-ship closing method of claim 11, wherein, The monitoring of the offset positional relationship between the reference half ship and the reference carrier specifically includes: Monitoring the offset positional relationship between the berth center line of the reference half ship and the hull center line of the reference carrier; Monitoring the offset positional relationship between the left half ship longitudinal center line of the reference half ship and the hull center line of the reference carrier; Monitoring the offset positional relationship between the right half ship longitudinal center line of the reference half ship and the hull center line of the reference carrier.

13. The offsite semi-ship closing method of claim 10, wherein, The guiding and stopping base is used to judge the closing precision during the closing process, and when the closing precision meets the preset precision requirement, it is determined that the half ship closing is completed, and specifically: The distance between the guiding and stopping bases is used to judge the closing precision during the closing process; When the two guiding and stopping bases are in contact, it is determined that the current closing precision meets the preset precision requirement, and the half ship closing is completed.

14. A split-hull assembly device, characterized in that It includes: A reference determination module, a data acquisition module, a closing simulation module, a simulation result determination module, a correction module, a closing module, and a judgment module; The reference determination module is used to determine a reference half ship from a plurality of to-be-closed half ships; The data acquisition module is used to acquire closing end surface data of each to-be-closed half ship; The closing simulation module is used to simulate the closing of each to-be-closed half ship based on the closing end surface data, and obtain a closing simulation result; The simulation result determination module is used to determine a to-be-corrected allowance and a closing gap from the closing simulation result; The correction module is used to correct the structure of each to-be-closed half ship according to the to-be-corrected allowance; The closing module is used to set guiding and stopping bases on each to-be-closed half ship according to the closing gap, and use the reference half ship as a positioning reference to close each to-be-closed half ship to the reference half ship by using a traction device; The judgment module is used to judge the closing precision by using the guiding and stopping bases during the closing process, and when the closing precision meets the preset precision requirement, it is determined that the half ship closing is completed. The correction of the structure of each to-be-closed half ship according to the to-be-corrected allowance specifically includes: Determining a plurality of to-be-corrected structures from the to-be-corrected allowance; Judging the importance of each to-be-corrected structure; Classifying the plurality of to-be-corrected structures into a plurality of main structures and a plurality of secondary structures through importance analysis; Correcting each main structure according to the to-be-corrected allowance; Simulating the correction of each secondary structure according to the to-be-corrected allowance, and analyzing whether the simulated secondary structure affects the main structure; When the simulated secondary structure does not affect the main structure, correcting each secondary structure according to the to-be-corrected allowance.

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