Porthole assembling method, moving tool and positioning tool

Abstract

The invention relates to the technical field of ship assembly, in particular to a porthole assembly method, a moving tool and a positioning tool, and the porthole assembly method comprises the steps that the center point of the mounting position of a porthole is marked on a broadside curved surface structure according to the drawing size; a plurality of guide lines are marked on the outer side surface of the porthole, the guide lines are parallel to the axis of the porthole, and the guide lines are evenly distributed in the circumferential direction of the porthole; the porthole is placed on a movable tool, a positioning tool capable of marking the axis of the porthole is fixed to the porthole, and the position of the porthole is adjusted through the movable tool, so that the axis, marked by the positioning tool, of the porthole is aligned with the center point; extending the guide lines to the broadside curved surface structure one by one, and marking contour points on the surface of the broadside curved surface structure; cutting the mounting hole of the porthole according to the pattern marked by the contour points; and the porthole is inserted into the mounting hole, and the porthole and the broadside curved surface structure are welded. According to the porthole assembling method, the moving tool and the positioning tool, precision is improved, and operation is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of ship assembly, and in particular to a porthole assembly method, a mobile tool and a positioning tool. Background Art

[0002] With the development of ship technology, the shape of ships has become more complex, especially the curvature of the side wall of the bow of the ship is large. Due to the influence of the curvature, positioning deviation may occur when using traditional positioning tools (such as tape measures, laser pens, etc.). This deviation will increase with the increase of curvature, thereby affecting the accuracy of porthole installation, resulting in difficulties in installing cylindrical portholes, low construction efficiency, high hole opening error rate and other problems. In addition, there are large and small differences in the curved surface bending of steel plates in different regions, and it is difficult to unify the shape of the porthole openings and control the accuracy of the porthole openings. Not only does it increase the difficulty of construction, but the positioning error of the portholes will directly affect the background construction period of the entire room in the later stage, and bring about the problem that the size of the room wall panels cannot be prefabricated. Summary of the invention

[0003] The purpose of this application is to provide a porthole assembly method, a mobile tooling and a positioning tooling, so as to solve the existing problems in the prior art to a certain extent, that the deviation will increase with the increase of curvature, thereby affecting the accuracy of porthole installation, resulting in difficulty in installing cylindrical portholes, low construction efficiency, high hole opening error rate, etc. There are large and small differences in the curved surface bending of steel plates in different regions, and it is difficult to unify the shape of the porthole openings, and it is difficult to control the accuracy of the porthole openings, which not only increases the difficulty of construction, but also the positioning error of the porthole will directly affect the background engineering construction period of the entire room in the later stage, and bring about the technical problem that the size of the room wall panel cannot be prefabricated.

[0004] According to a first aspect of the present application, a porthole assembly method is provided, the steps of which include:

[0005] Mark the center point of the side curved surface structure and the center point of the porthole installation position on the side curved surface structure according to the drawing dimensions;

[0006] Marking guide lines, marking a plurality of guide lines on the outer surface of the porthole, wherein the guide lines are parallel to the axis of the porthole, and the plurality of guide lines are evenly distributed along the circumferential direction of the porthole;

[0007] adjusting the position of the porthole, placing the porthole on a movable fixture, fixing a positioning fixture capable of marking the axis of the porthole on the porthole, and adjusting the position of the porthole using the movable fixture so that the axis of the porthole marked by the positioning fixture is aligned with the center point;

[0008] Marking the contour, extending the guide lines to the side curved surface structure one by one, and marking contour points on the surface of the side curved surface structure;

[0009] Cutting the mounting holes, cutting the mounting holes of the portholes according to the graphics marked by the contour points;

[0010] Install the porthole, insert the porthole into the installation hole to a predetermined depth, and weld the porthole and the side curved surface structure.

[0011] Preferably, the number of the guide wires is 36 to 42.

[0012] Preferably, in the circumferential direction of the porthole, a distance between two adjacent guide lines among the plurality of guide lines is 2 cm to 4 cm.

[0013] Preferably, the movable tool is fixed to one end of the porthole close to the side curved surface structure.

[0014] An embodiment of the second aspect of the present application provides a mobile tooling for use in the porthole assembly method described in any of the above embodiments, and thus has all the beneficial technical effects of the porthole assembly method, which will not be elaborated herein.

[0015] Wherein, the movable tooling comprises a supporting portion and a roller portion, the supporting portion is used to support the porthole, and the roller portion is fixed to the bottom of the supporting portion.

[0016] Preferably, it further comprises a lifting portion, which is disposed at the bottom of the supporting portion and can be extended and retracted relative to the roller portion to adjust the height of the porthole.

[0017] Preferably, the supporting portion comprises a supporting frame and a plurality of limit supports, the roller portion is arranged at the bottom of the supporting frame, the limit support is fixed to the top of the supporting frame, and the plurality of limit supports are arranged at intervals along the extension direction of the axis of the porthole.

[0018] The embodiment of the third aspect of the present application further provides a positioning tool, which is used for the porthole assembly method described in any of the above embodiments, and thus has all the beneficial technical effects of the porthole assembly method, which will not be repeated here.

[0019] Wherein, the positioning tooling comprises:

[0020] a fixing portion, the positioning tool being detachably connected to the porthole via the fixing portion;

[0021] a marking needle extending along the axial direction of the porthole;

[0022] A connecting portion connects the marking needle and the fixing portion, and when the fixing portion is disposed on the porthole, an axis of the marking needle coincides with an axis of the porthole.

[0023] Preferably, the connecting portion is a connecting disc, and the marking needle is arranged at the center of the connecting disc;

[0024] The fixing portion includes at least three locking bolts, and the locking bolts are fixed to the edge of the connecting disk. The at least three locking bolts are evenly distributed along the circumference of the connecting disk.

[0025] Preferably, it further comprises a placement claw, and the locking bolt is fixed to the connecting portion via the placement claw;

[0026] The seating claw includes a connecting portion and a seating portion connected to each other, the connecting portion extends in the radial direction of the porthole, and one end of the connecting portion away from the seating portion is fixedly connected to the connecting portion, the seating portion extends in the axial direction of the porthole, and the locking bolt penetrates the seating portion in the radial direction of the connecting portion.

[0027] Compared with the prior art, the beneficial effects of this application are:

[0028] 1. By first centering (i.e. aligning the axis of the porthole marked by the positioning tool with the center point of the installation position marked on the side curved surface structure according to the drawing), and then simulating the orthographic projection of the porthole on the side curved surface structure by extending the guide line, and drawing the outline point marks of the porthole according to the orthographic projection, the precise cutting of the porthole installation hole is achieved, which not only improves the opening accuracy of the porthole, but also simplifies the installation operation and improves the installation efficiency;

[0029] 2. By installing the portholes using the above method, the hole positioning accuracy error can be controlled within ±2mm, meeting the installation accuracy requirements of general ship portholes;

[0030] 3. Supporting the porthole with mobile tooling can effectively avoid the risk of the porthole being damaged by falling and being hit by objects during the installation process.

[0031] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the front view of the assembly structure of the porthole, the moving tooling and the positioning tooling provided in an embodiment of the present application;

[0034] Figure 2 A schematic side view of the assembly structure of the porthole, the moving tooling and the positioning tooling provided in an embodiment of the present application;

[0035] Figure 3 This is a schematic diagram of the front view structure of the positioning tool provided in an embodiment of the present application.

[0036] Reference numerals:

[0037] 1-porthole; 211-limiting support; 212-supporting frame; 22-roller part; 23-lifting part; 31-fixing part; 311-setting claw; 3111-connecting part; 3112-setting part; 312-locking bolt; 32-marking needle; 33-connecting part; F1-first direction; F2-second direction; F3-third direction. DETAILED DESCRIPTION

[0038] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0039] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0040] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] Refer to the following Figures 1 to 3 The present invention describes a porthole assembly method, a moving tool and a positioning tool according to some embodiments of the present application.

[0044] See also Figures 1 to 3 As shown, an embodiment of the first aspect of the present application provides a porthole assembly method, the steps of which include:

[0045] S01 marks the center point of the side curved surface structure, and marks the center point of the installation position of the porthole 1 on the side curved surface structure according to the drawing dimensions.

[0046] Optionally, the step of marking the center point of the side curved surface structure in S01 also includes measuring the position of the center point of the installation position of the porthole 1 on the surface of the side curved surface structure by using a total station.

[0047] Optionally, the center point of the installation position of the porthole 1 can be marked by tapping a punch point on the surface of the side curved structure.

[0048] S02 marks guide lines. A plurality of guide lines are marked on the outer surface of the porthole 1 . The guide lines are parallel to the axis of the porthole 1 . The plurality of guide lines are evenly distributed along the circumferential direction of the porthole 1 .

[0049] like Figure 1 As shown, the structure shown by the dotted line in the figure can be an example of the above-mentioned guide line.

[0050] Optionally, the number of the guide lines may be 36 to 42 to ensure the marking density of the following contour points, thereby improving the hole opening accuracy.

[0051] Optionally, in the circumferential direction of the porthole 1, the distance between two adjacent guide lines among the multiple guide lines can be 2 cm to 4 cm, for example, 2 cm, 2.5 cm, 3 cm, 3.5 cm, 4 cm, etc., to ensure the marking density of the following contour points and thereby improve the opening accuracy.

[0052] Preferably, in the above step S02 of marking the guide line, the porthole 1 can be placed vertically on the horizontal ground (here, vertically placed on the horizontal ground can be understood as when the porthole 1 is placed on the horizontal ground, the axis of the porthole 1 is perpendicular to the horizontal ground).

[0053] Preferably, in the above step S02 of marking the guide line, a level ruler or a level may be used to adjust the horizontality of the porthole 1 to improve the marking accuracy of the guide line.

[0054] Preferably, in the above-mentioned step S02 of marking guide lines, the cylindrical porthole 1 can also be divided into N equal parts in the circumferential direction of the porthole 1 with the axis of the porthole 1 as the axis by the laser line of the level (where N is the number of the above-mentioned guide lines), and guide lines can be drawn along the marked positions of the laser line to facilitate the marking operation of the guide lines.

[0055] S03 adjusts the position of the porthole 1, places the porthole 1 on a mobile tooling, and fixes a positioning tooling capable of marking the axis of the porthole 1 to the porthole 1, and uses the mobile tooling to adjust the position of the porthole 1 so that the axis of the porthole 1 marked by the positioning tooling is aligned with the center point.

[0056] Preferably, if Figure 1 and Figure 2 As shown, the above-mentioned movable tooling may include a supporting portion and a roller portion 22, wherein the supporting portion is used to support the porthole 1, and the roller portion 22 is fixed to the bottom of the supporting portion, so that the horizontal position of the porthole 1 can be adjusted by the roller.

[0057] Optionally, in the step S03 of adjusting the position of the porthole 1 , the porthole 1 may be lifted by a lifting device (eg, a hand winch, a crane, etc.) and placed at a predetermined position of the supporting portion to facilitate placement of the porthole 1 .

[0058] Preferably, in the step of adjusting the position of the porthole 1 in S03, it may also include using a spirit level / level ruler to adjust the levelness of the porthole 1 on the supporting portion, thereby increasing installation accuracy.

[0059] Preferably, if Figure 1 and Figure 2 As shown, the above-mentioned mobile tooling may further include a lifting portion 23, which is disposed at the bottom of the supporting portion, and the lifting portion 23 can extend and retract relative to the roller portion 22 to adjust the height of the porthole 1, further facilitating the alignment of the axis of the porthole 1 with the center point of the installation position.

[0060] Preferably, if Figure 2 As shown, the lifting portion 23 may include a lifting bolt, that is, by screwing the lifting bolt, the lifting bolt is controlled to extend or retract relative to the roller portion 22, thereby adjusting the length of the lifting portion 23 and adjusting the height of the porthole 1.

[0061] Alternatively, if Figure 1 and Figure 2 As shown, the roller part 22 may include a plurality of universal wheels to ensure the stability of the mobile tooling.

[0062] Preferably, if Figure 2 As shown, the lifting part 23 may include a plurality of the lifting bolts, which can not only improve the stability of the mobile tooling but also realize the leveling property of the mobile tooling.

[0063] However, it is not limited to this. The lifting part 23 is not limited to the example of the lifting bolt. As long as the lifting part 23 can be extended and retracted relative to the roller to adjust the height of the porthole 1, the lifting part 23 can also include multiple linear drive devices. For example, the linear drive device can be an electric telescopic rod, a pneumatic cylinder, an electric cylinder, etc.

[0064] Preferably, if Figure 1 and Figure 2 As shown, the supporting portion may include a supporting frame 212 and a plurality of limit supports 211, the roller portion 22 is arranged at the bottom of the supporting frame 212, the limit supports 211 are fixed to the top of the supporting frame 212, and the plurality of limit supports 211 are arranged at intervals along the extension direction of the axis of the porthole 1 to improve the supporting stability and accuracy of the porthole 1.

[0065] Alternatively, if Figure 2 As shown, the above-mentioned limiting support 211 can be provided with a groove adapted to the shape of the outer wall of the porthole 1 to further improve the supporting stability and accuracy of the porthole 1.

[0066] In an embodiment, preferably, Figure 1 As shown, the above-mentioned movable tooling can be fixed to one end of the porthole 1 close to the side curved surface structure, so that the positioning tooling can be close to the side curved surface structure, thereby facilitating the comparison between the axis of the porthole 1 marked by the positioning tooling and the center point of the installation position of the side curved surface structure, thereby improving the positioning accuracy.

[0067] Preferably, if Figures 1 to 3 As shown, the positioning tool may include a fixing portion 31 , and the positioning tool is detachably connected to the porthole 1 via the fixing portion 31 , so as to facilitate the loading and unloading of the positioning tool.

[0068] Preferably, if Figures 1 to 3 As shown, the positioning tool may further include a marking needle 32, which extends along the axial direction of the porthole 1 (defined as the first direction F1) to fill the gap between the porthole 1 and the side curved surface structure through the marking needle 32, so that the axis of the porthole 1 marked by the marking needle 32 of the positioning tool can directly contact the center point of the installation position marked by the side curved surface structure, so as to reduce errors and improve positioning accuracy.

[0069] like Figure 1 and Figure 2As shown, F1 shown in the figure may be an example of the first direction F1 mentioned above. When the mobile tooling is in use, the second direction F2 may be parallel to the direction of gravity. F2 shown in the figure may be an example of the second direction F2 mentioned above. For the convenience of description, the direction perpendicular to the first direction F1 and the second direction F2 is defined as a third direction F3. F3 shown in the figure may be an example of the third direction F3 mentioned above.

[0070] Optionally, the marking needle 32 may be in the shape of a hollow cylinder, so that the center point of the installation position of the side curved surface structure mark can be circled in the center of the marking needle 32, thereby further reducing errors and improving positioning accuracy.

[0071] Preferably, if Figures 1 to 3 As shown, the positioning tool may further include a connecting portion 33 , which connects the marking needle 32 and the fixing portion 31 . When the fixing portion 31 is disposed on the porthole 1 , the axis of the marking needle 32 coincides with the axis of the porthole 1 .

[0072] Preferably, if Figures 1 to 3 As shown, the connecting portion 33 may be a connecting disk, and the marking needle 32 may be disposed at the center of the connecting disk. However, the invention is not limited thereto, and as long as the connecting portion 33 can connect the marking needle 32 and the plurality of locking bolts 312 described below, the connecting portion 33 may also be a regular polygon, a polygonal star, a radial line, etc.

[0073] Preferably, if Figures 1 to 3 As shown in the figure, the fixing portion 31 includes an example of three locking bolts 312, which can be fixed to the edge of the connecting disk, and the three locking bolts 312 are evenly distributed along the circumference of the connecting disk (ie, Figure 3 ∠α=120°) is shown to ensure that the axis of the marking needle 32 can coincide with the axis of the porthole 1 mentioned above.

[0074] However, it is not limited thereto, and as long as the installation stability of the positioning tooling and the coincidence accuracy between the axis of the marking needle 32 and the axis of the porthole 1 can be ensured, the number of the locking bolts 312 can also be 4, 5... or more.

[0075] In addition, the fixing portion 31 is not limited to the example of the multiple locking bolts 312. As long as the installation stability of the positioning tooling and the coincidence accuracy of the axis of the marking needle 32 and the axis of the porthole 1 can be ensured, the fixing portion 31 can also be other fixing structures such as a hoop and a clamp.

[0076] Preferably, if Figures 1 to 3As shown, the positioning tool may further include a placement claw 311 , and the locking bolt 312 is fixed to the connecting portion 33 via the placement claw 311 , so that the fixing portion 31 and the connecting portion 33 are staggered in the axial direction, thereby avoiding interference between the fixing portion 31 and the marking needle 32 .

[0077] Preferably, if Figure 1 As shown, the seating claw 311 may include a connecting portion 3111 and a seating portion 3112 connected to each other, the connecting portion 3111 extends radially of the porthole 1, and one end of the connecting portion 3111 away from the seating portion 3112 is fixedly connected to the connecting portion 33, the seating portion 3112 extends along the axial direction of the porthole 1, and the locking bolt 312 penetrates the seating portion 3112 radially of the connecting portion 33.

[0078] Correspondingly, a locking nut matched with the locking bolt 312 is fixed on the above-mentioned placement part 3112, so that the fixing part 31 can clamp and release the porthole 1 by screwing the locking bolt 312.

[0079] S04 marks the contour, extends the guide lines to the side curved surface structure one by one, and marks the contour points on the surface of the side curved surface structure.

[0080] Optionally, in the step of marking the outline in S04, the guide line may be extended to the side curved surface structure by means of a lead wire or a caliper.

[0081] Optionally, in the step of marking the contour in S04, the contour points may be marked by striking points on the surface of the side curved structure.

[0082] S05 Cutting the mounting holes: Cut the mounting holes of porthole 1 according to the graphics marked with contour points.

[0083] Preferably, the porthole assembly method may further include S051 trimming the mounting hole, grinding and polishing the edge of the mounting hole to prevent the porthole 1 from being scratched after being inserted into the mounting hole.

[0084] S06 installs the porthole 1, inserts the porthole 1 into the installation hole to a predetermined depth, and welds the porthole 1 to the side curved surface structure.

[0085] Optionally, the predetermined depth to which the porthole 1 is inserted into the mounting hole may be understood as making at least a portion of the porthole 1 protrude by at least 10 mm relative to the outer surface of the side curved surface structure.

[0086] Preferably, the porthole assembly method may further include S07 shaping the porthole 1 , cutting, polishing and painting a portion of the porthole 1 that exceeds the outer surface of the porthole curved surface structure according to an outer contour line of the porthole curved surface structure.

[0087] Based on the characteristics described above, Figures 1 to 3 The porthole assembly method shown is described as an example, and the beneficial effects of the porthole assembly method will be described in detail below:

[0088] 1. By first centering (i.e. aligning the axis of the porthole 1 marked by the positioning tool with the center point of the installation position marked on the side curved surface structure according to the drawing), and then simulating the orthographic projection of the porthole 1 on the side curved surface structure by extending the guide line, and drawing the contour point marks of the porthole 1 according to the orthographic projection, the installation hole of the porthole 1 is accurately cut, which not only ensures the opening accuracy of the porthole 1, but also simplifies the installation operation and improves the installation efficiency;

[0089] 2. By installing the porthole 1 through the above method, the hole positioning accuracy error can be controlled within ±2mm, meeting the installation accuracy requirements of the general ship porthole 1;

[0090] 3. The porthole 1 can be supported by a mobile tooling to effectively avoid the risk of the porthole 1 being damaged by falling or hit by objects during the installation process.

[0091] See also Figure 1 and Figure 2 As shown, an embodiment of the second aspect of the present application provides a mobile tooling for use with the porthole assembly method described in any of the above embodiments, and thus has all the beneficial technical effects of the porthole assembly method, which will not be described in detail herein.

[0092] Preferably, if Figure 1 and Figure 2 As shown, the above-mentioned movable tooling may include a supporting portion and a roller portion 22, wherein the supporting portion is used to support the porthole 1, and the roller portion 22 is fixed to the bottom of the supporting portion, so that the horizontal position of the porthole 1 can be adjusted by the roller.

[0093] Preferably, if Figure 1 and Figure 2 As shown, the above-mentioned mobile tooling may further include a lifting portion 23, which is disposed at the bottom of the supporting portion, and the lifting portion 23 can extend and retract along the second direction F2 relative to the roller portion 22 to adjust the height of the porthole 1, further facilitating the alignment of the axis of the porthole 1 with the center point of the installation position.

[0094] Preferably, if Figure 2 As shown, the lifting portion 23 may include a lifting bolt, and correspondingly, the bottom of the supporting frame 212 is provided with an internal threaded hole extending along the second direction F2, so that by screwing the lifting bolt, the lifting bolt can be controlled to extend or retract relative to the roller portion 22, thereby adjusting the length of the lifting portion 23 and adjusting the height of the porthole 1.

[0095] Alternatively, if Figure 1 and Figure 2As shown, the roller part 22 may include a plurality of universal wheels to ensure the stability of the mobile tooling.

[0096] Preferably, if Figure 2 As shown, the lifting part 23 may include a plurality of the lifting bolts, which can not only improve the stability of the mobile tooling but also realize the leveling property of the mobile tooling.

[0097] However, it is not limited to this. The lifting part 23 is not limited to the example of the lifting bolt. As long as the lifting part 23 can be extended and retracted relative to the roller to adjust the height of the porthole 1, the lifting part 23 can also include multiple linear drive devices. For example, the linear drive device can be an electric telescopic rod, a pneumatic cylinder, an electric cylinder, etc.

[0098] Preferably, if Figure 1 and Figure 2 As shown, the supporting portion may include a supporting frame 212 and a plurality of limit supports 211, the roller portion 22 is arranged at the bottom of the supporting frame 212, the limit supports 211 are fixed to the top of the supporting frame 212, and the plurality of limit supports 211 are arranged at intervals along the extension direction of the axis of the porthole 1 to improve the supporting stability and accuracy of the porthole 1.

[0099] Preferably, if Figure 1 and Figure 2 As shown, the supporting frame 212 may be a rectangular frame welded from angle steels to adapt to the shape of the porthole 1 .

[0100] Optionally, the limiting support 211 may be fixed to the supporting frame 212 by welding.

[0101] Preferably, the height of the weld feet of the supporting frame 212 and the limiting support 211 may be 0.7 times the thickness of the thinnest plate of the supporting frame 212 and the limiting support 211 to ensure welding stability.

[0102] Alternatively, if Figure 2 As shown, the above-mentioned limiting support 211 can be provided with a groove adapted to the shape of the outer wall of the porthole 1 to further improve the supporting stability and accuracy of the porthole 1.

[0103] See also Figures 1 to 3 As shown, the embodiment of the third aspect of the present application further provides a positioning tool, which is used for the porthole assembly method described in any of the above embodiments, and thus has all the beneficial technical effects of the porthole assembly method, which will not be repeated here.

[0104] Preferably, if Figure 1As shown, the above-mentioned movable tooling can be fixed to one end of the porthole 1 close to the side curved surface structure, so that the positioning tooling can be close to the side curved surface structure, thereby facilitating the comparison between the axis of the porthole 1 marked by the positioning tooling and the center point of the installation position of the side curved surface structure, thereby improving the positioning accuracy.

[0105] Preferably, if Figures 1 to 3 As shown, the positioning tool may include a fixing portion 31 , and the positioning tool is detachably connected to the porthole 1 via the fixing portion 31 , so as to facilitate the loading and unloading of the positioning tool.

[0106] Preferably, if Figures 1 to 3 As shown, the positioning tool may further include a marking needle 32, which extends along the axial direction of the porthole 1, so as to fill the gap between the porthole 1 and the side curved surface structure through the marking needle 32, so that the axis of the porthole 1 marked by the positioning tool through the marking needle 32 can directly contact the center point of the installation position marked by the side curved surface structure, so as to reduce the error and improve the positioning accuracy.

[0107] Optionally, the marking needle 32 may be in the shape of a hollow cylinder, so that the center point of the installation position of the side curved surface structure mark can be circled in the center of the marking needle 32, thereby further reducing errors and improving positioning accuracy.

[0108] Preferably, if Figures 1 to 3 As shown, the positioning tool may further include a connecting portion 33 , which connects the marking needle 32 and the fixing portion 31 . When the fixing portion 31 is disposed on the porthole 1 , the axis of the marking needle 32 coincides with the axis of the porthole 1 .

[0109] Preferably, if Figures 1 to 3 As shown, the connecting portion 33 may be a connecting disk, and the marking needle 32 may be disposed at the center of the connecting disk. However, the invention is not limited thereto, and as long as the connecting portion 33 can connect the marking needle 32 and the plurality of locking bolts 312 described below, the connecting portion 33 may also be a regular polygon, a polygonal star, a radial line, etc.

[0110] Preferably, if Figures 1 to 3 As shown in the figure, the fixing portion 31 includes an example of three locking bolts 312, which can be fixed to the edge of the connecting disk, and the three locking bolts 312 are evenly distributed along the circumference of the connecting disk (ie, Figure 3 ∠α=120°) is shown to ensure that the axis of the marking needle 32 can coincide with the axis of the porthole 1 mentioned above.

[0111] However, it is not limited thereto, and as long as the installation stability of the positioning tooling and the coincidence accuracy between the axis of the marking needle 32 and the axis of the porthole 1 can be ensured, the number of the locking bolts 312 can also be 4, 5... or more.

[0112] In addition, the fixing portion 31 is not limited to the example of the multiple locking bolts 312. As long as the installation stability of the positioning tooling and the coincidence accuracy of the axis of the marking needle 32 and the axis of the porthole 1 can be ensured, the fixing portion 31 can also be other fixing structures such as a hoop and a clamp.

[0113] Preferably, if Figures 1 to 3 As shown, the positioning tool may further include a placement claw 311 , and the locking bolt 312 is fixed to the connecting portion 33 via the placement claw 311 , so that the fixing portion 31 and the connecting portion 33 are staggered in the axial direction, thereby avoiding interference between the fixing portion 31 and the marking needle 32 .

[0114] Preferably, if Figure 1 As shown, the seating claw 311 may include a connecting portion 3111 and a seating portion 3112 connected to each other, the connecting portion 3111 extends radially of the porthole 1, and one end of the connecting portion 3111 away from the seating portion 3112 is fixedly connected to the connecting portion 33, the seating portion 3112 extends along the axial direction of the porthole 1, and the locking bolt 312 penetrates the seating portion 3112 radially of the connecting portion 33.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A porthole assembly method, characterized in that: The steps include: Mark the center point of the side curved surface structure and the center point of the porthole installation position on the side curved surface structure according to the drawing dimensions; Marking guide lines, marking a plurality of guide lines on the outer surface of the porthole, wherein the guide lines are parallel to the axis of the porthole, and the plurality of guide lines are evenly distributed along the circumferential direction of the porthole; adjusting the position of the porthole, placing the porthole on a movable fixture, fixing a positioning fixture capable of marking the axis of the porthole on the porthole, and adjusting the position of the porthole using the movable fixture so that the axis of the porthole marked by the positioning fixture is aligned with the center point; Marking the contour, extending the guide lines to the side curved surface structure one by one, and marking contour points on the surface of the side curved surface structure; Cutting the mounting holes, cutting the mounting holes of the portholes according to the graphics marked by the contour points; Install the porthole, insert the porthole into the installation hole to a predetermined depth, and weld the porthole and the side curved surface structure.

2. The porthole assembly method according to claim 1, characterized in that: The number of the guide lines is 36 to 42.

3. The porthole assembly method according to claim 1, characterized in that: In the circumferential direction of the porthole, a distance between two adjacent guide lines among the plurality of guide lines is 2 cm to 4 cm.

4. The porthole assembly method according to claim 1, characterized in that: The movable tool is fixed to one end of the porthole close to the side curved surface structure.

5. A mobile tooling, characterized in that: Used in the porthole assembly method according to any one of claims 1 to 4, the movable tooling comprises a supporting portion and a roller portion, the supporting portion is used to support the porthole, and the roller portion is fixed to the bottom of the supporting portion.

6. The mobile tooling according to claim 5, characterized in that: It also includes a lifting part, which is arranged at the bottom of the supporting part, and the lifting part can be extended and retracted relative to the roller part to adjust the height of the porthole.

7. The mobile tooling according to claim 5, characterized in that: The supporting portion includes a supporting frame and a plurality of limit brackets, the roller portion is arranged at the bottom of the supporting frame, the limit bracket is fixed to the top of the supporting frame, and the plurality of limit brackets are arranged at intervals along the extension direction of the axis of the porthole.

8. A positioning tool, characterized in that: The porthole assembly method according to any one of claims 1 to 4, wherein the positioning tool comprises: a fixing portion, the positioning tool being detachably connected to the porthole via the fixing portion; a marking needle extending along the axial direction of the porthole; A connecting portion connects the marking needle and the fixing portion, and when the fixing portion is disposed on the porthole, an axis of the marking needle coincides with an axis of the porthole.

9. The positioning tool according to claim 8, characterized in that: The connecting part is a connecting disc, and the marking needle is arranged at the center of the connecting disc; The fixing portion includes at least three locking bolts, and the locking bolts are fixed to the edge of the connecting disk. The at least three locking bolts are evenly distributed along the circumference of the connecting disk.

10. The positioning tool according to claim 9, characterized in that: It also includes a placement claw, and the locking bolt is fixed to the connecting portion via the placement claw; The seating claw includes a connecting portion and a seating portion connected to each other, the connecting portion extends in the radial direction of the porthole, and one end of the connecting portion away from the seating portion is fixedly connected to the connecting portion, the seating portion extends in the axial direction of the porthole, and the locking bolt penetrates the seating portion in the radial direction of the connecting portion.

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