Channel keel bottom plate lofting method and channel keel bottom plate processing method

Abstract

This invention belongs to the field of trough keel bottom plate processing technology, and discloses a method for laying out and processing trough keel bottom plates. In this method, a front view and a sectional view along the longitudinal centerline of the ship are obtained from the trough keel bottom plate. The actual length of each bottom plate is obtained based on the sectional view, and the actual length of each rib line is obtained based on the front view. An unfolded view of the bottom plate is then drawn. In the front view, the diagonals of the side plates of multiple segmented keel bottom plates are connected, and the projected length of the diagonals is measured. The actual length of the diagonals is obtained based on the projected length of the diagonals. An unfolded view of the side plates is then drawn based on the actual length of the diagonals in the unfolded view of the bottom plate, thus obtaining the unfolded view of the trough keel bottom plate. This allows the bottom plate and side plates to be unfolded sequentially, and the bottom plate and side plates are located in the same layout unfolded view, reducing errors and eliminating subsequent splicing operations.

Description

Technical Field

[0001] This invention relates to the field of processing technology for channel keel base plates, and more particularly to a method for laying out and processing channel keel base plates. Background Technology

[0002] The keel bottom plate of a ship is generally an irregular groove shape at the bow or stern, typically consisting of a bottom plate and two side plates on either side of the bottom plate. Current layout techniques involve unfolding each of these three parts separately and then splicing them together. However, unfolding each part individually results in significant errors, potentially leading to incomplete splicing. Therefore, machining allowances must be left, and these allowances need to be removed after splicing, making the process cumbersome and difficult to implement. Summary of the Invention

[0003] According to one aspect of the present invention, the present invention provides a method for laying out a grooved keel base plate to solve the problem that the three parts of the keel base plate are laid out separately in the prior art, resulting in large errors.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A method for laying out a trough-type keel bottom plate is used to lay out and unfold a trough-type keel bottom plate. The trough-type keel bottom plate includes multiple segmented keel bottom plates arranged sequentially along the fore-and-aft direction of the ship. Each segmented keel bottom plate includes a trough bottom plate and two side plates. The two side plates are respectively arranged on the left and right sides of the trough bottom plate. There are rib lines between any two adjacent trough bottom plates. The distance between any two adjacent rib lines along the fore-and-aft direction of the ship is the same.

[0006] include:

[0007] S100: Obtain the front view of the channel keel bottom plate and the sectional view of the front view along the midline of the ship;

[0008] S200: Obtain the actual length of each of the groove bottom plates based on the sectional view, obtain the actual length of each of the rib lines based on the front view, and draw the unfolded view of the groove bottom plates;

[0009] S300: In the front view, connect the diagonals of the side plates of the multiple segmented keel base plates, and measure the projected length of the diagonals;

[0010] S400: Obtain the actual length of the diagonal based on the projected length of the diagonal;

[0011] S500: Based on the actual length of the diagonal, draw the unfolded view of the side plate in the unfolded view of the bottom plate of the channel to obtain the unfolded view of the channel-shaped keel bottom plate.

[0012] As a preferred method for laying out the bottom plate of the trough keel, there is a transverse seam between any two adjacent side plates;

[0013] Step S500 includes:

[0014] S510: Draw the straight lines containing each of the horizontal seams based on the actual length of the diagonal;

[0015] S520: Obtain the actual length of each of the horizontal seams based on the front view;

[0016] S530: In the straight line where the transverse suture line is located, the position of the endpoint of the transverse suture line away from the rib line is obtained based on the actual length of the transverse suture line;

[0017] S540: Connect the endpoints of each of the transverse sutures away from the rib line in sequence.

[0018] As a preferred embodiment of the keel bottom plate layout method, the multiple rib lines are numbered sequentially as 1, 2, ..., n along the fore-and-aft direction of the ship, wherein the 2nd, 3rd, ..., n-1th rib lines are connected to the transverse seam lines; each of the multiple rib lines has a first endpoint located on one side of the ship and a second endpoint located on the other side of the ship.

[0019] In step S510, the straight lines connecting the first endpoints of the n rib lines to the transverse seam lines are drawn sequentially, and the straight lines connecting the second endpoints of the n rib lines to the transverse seam lines are drawn sequentially.

[0020] The process of drawing the straight line connecting the first endpoint of the i-th rib line includes steps S511-S512, where 2≤i≤n-1:

[0021] S511: With the first endpoint of the (i-1)th rib line as the center, draw a first arc with the actual length of the diagonal line passing through the first endpoint of the (i-1)th rib line and close to the i-th rib line as the radius;

[0022] With the first endpoint of the (i+1)th rib line as the center, draw a second arc with the actual length of the diagonal line passing through the first endpoint of the (i+1)th rib line and close to the i-th rib line as the radius;

[0023] S512: The first arc and the second arc intersect at the intersection point of the first arc. Connect the intersection point of the first arc with the first endpoint of the i-th rib line to obtain the straight line where the transverse seam line is connected to the first endpoint of the i-th rib line.

[0024] As a preferred embodiment of the method for laying out the grooved keel base plate, in step S510, drawing the straight line containing the transverse seam line connected to the second endpoint of the i-th rib line includes steps S513-S514, where 2≤i≤n-1:

[0025] S513: Using the second endpoint of the (i-1)th rib line as the center, draw a third arc with the actual length of the diagonal line passing through the second endpoint of the (i-1)th rib line and close to the i-th rib line as the radius;

[0026] With the second endpoint of the (i+1)th rib line as the center, draw a fourth arc with the actual length of the diagonal line passing through the second endpoint of the (i+1)th rib line and close to the i-th rib line as the radius;

[0027] S514: The third arc and the fourth arc intersect at the intersection point of the second arc. Connect the intersection point of the second arc with the second endpoint of the i-th rib line to obtain the straight line where the transverse seam line is connected to the second endpoint of the i-th rib line.

[0028] As a preferred embodiment of the method for laying out the grooved keel base plate, in step S520, the actual length of the transverse seam is obtained by measuring the length of the line segment corresponding to each transverse seam in the front view.

[0029] As a preferred embodiment of the keel bottom plate layout method, the distance between any two adjacent rib lines along the fore-and-aft direction of the ship is L; step S400 includes:

[0030] Draw two parallel lines that are parallel and spaced apart, with a distance of L between the two parallel lines;

[0031] Draw a perpendicular line from the first connection point of one of the parallel lines to the other parallel line, intersecting at the second connection point. With the first connection point as the center and the projected length of the diagonal as the radius, draw an arc that intersects the parallel line containing the first connection point at the third connection point. Connect the second connection point and the third connection point.

[0032] As a preferred embodiment of the keel bottom plate layout method, the distance between any two adjacent rib lines along the fore-and-aft direction of the ship is L; step S400 includes:

[0033] Calculate the actual length LA of the diagonal. 2 =L 2 +La 2 , where La is the projected length of the corresponding diagonal.

[0034] As a preferred embodiment of the method for laying out the bottom plate of the trough keel, in step S200, the actual length of the bottom plate of the trough is obtained by measuring the length of the line segment corresponding to each bottom plate of the trough in the sectional view.

[0035] As a preferred embodiment of the method for laying out the trough-type keel base plate, in step S200, the actual length of the rib line is obtained by measuring the length of the line segment corresponding to each rib line in the front view.

[0036] According to another aspect of the present invention, a method for processing a channel-shaped keel base plate is provided, characterized in that it includes the above-described channel-shaped keel base plate layout method, and further includes the following method located after the channel-shaped keel base plate layout method:

[0037] The grooved keel base plate is processed based on its unfolded diagram.

[0038] The beneficial effects of this invention are:

[0039] This invention provides a method for laying out a channel-shaped keel bottom plate. In this method, a front view and a sectional view along the ship's centerline of the channel-shaped keel bottom plate are obtained. Based on the sectional view, the actual length of each bottom plate is obtained. Based on the front view, the actual length of each rib line is obtained, and an unfolded view of the bottom plate is drawn. In the front view, the diagonals of the side plates of multiple segmented keel bottom plates are connected, and the projected length of the diagonals is measured. Based on the projected length of the diagonals, the actual length of the diagonals is obtained. Based on the actual length of the diagonals, an unfolded view of the side plates is drawn in the unfolded view of the bottom plate to obtain the unfolded view of the channel-shaped keel bottom plate. This allows the bottom plate and side plates to be unfolded sequentially, and the bottom plate and side plates are located in the same unfolded view, reducing errors and eliminating subsequent splicing operations.

[0040] The present invention also provides a method for processing a channel-shaped keel base plate, including the above-mentioned method for laying out the channel-shaped keel base plate. In this method, the channel base plate and the side plate are unfolded in sequence to reduce errors and eliminate the need for subsequent splicing operations. Attached Figure Description

[0041] Figure 1 This is a flowchart of the method for laying out the grooved keel base plate in an embodiment of the present invention;

[0042] Figure 2 This is a front view of the grooved keel base plate in an embodiment of the present invention;

[0043] Figure 3 This is a front view of the channel keel bottom plate in an embodiment of the present invention, and a sectional view along the midline of the ship.

[0044] Figure 4 This is an unfolded view of the bottom plate of the groove in an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram of the diagonal of the side plate in an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram illustrating the calculation principle of the actual length of the diagonal in an embodiment of the present invention. Figure 1 ;

[0047] Figure 7 This is a schematic diagram illustrating the calculation principle of the actual length of the diagonal in an embodiment of the present invention. Figure 2 ;

[0048] Figure 8 This is the unfolding of the grooved keel base plate in the embodiment of the present invention. Figure 1 ;

[0049] Figure 9 This is the unfolding of the grooved keel base plate in the embodiment of the present invention. Figure 2 .

[0050] In the picture:

[0051] 1. Segmented keel base plate; 11. Groove base plate; 12. Side plate;

[0052] 2. Rib line;

[0053] 3. Horizontal seam. Detailed Implementation

[0054] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0055] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0058] The keel bottom plate of a ship is generally an irregular groove shape at the bow or stern, typically consisting of a bottom plate and two side plates on either side of the bottom plate. Current layout techniques involve unfolding each of these three parts separately and then splicing them together. However, unfolding each part individually results in significant errors, potentially leading to incomplete splicing. Therefore, machining allowances must be left, and these allowances need to be removed after splicing, making the process cumbersome and difficult to implement.

[0059] To address the aforementioned issues, this embodiment provides a method for laying out a channel-type keel base plate, which solves the problem of large errors caused by unfolding the three parts of the keel base plate separately in the prior art. This method can be used in the field of channel-type keel base plate processing technology.

[0060] In this embodiment, the trough keel bottom plate layout method is used to lay out and unfold the trough keel bottom plate, which is located at the bow or stern end of the ship. The trough keel bottom plate includes multiple segmented keel bottom plates 1 arranged sequentially along the fore-and-aft direction of the ship. Each segmented keel bottom plate 1 includes a trough bottom plate 11 and two side plates 12. The two side plates 12 are respectively arranged on the left and right sides of the trough bottom plate 11. There is a rib line 2 between any two adjacent trough bottom plates 11. The distance between any two adjacent rib lines 2 along the fore-and-aft direction of the ship is the same and is L.

[0061] Reference Figure 1 The method for laying out the trough-type keel base plate includes steps S100-S500.

[0062] S100: Obtain the front view of the channel keel bottom plate and the sectional view of the front view along the midline of the ship.

[0063] The front view of the channel-shaped keel base plate is as follows: Figure 2 As shown, this front view was designed by technicians, and the sectional view along the ship's centerline is as follows. Figure 3 As shown, Figure 3 In the middle, the distance between two adjacent rib lines 2 is L.

[0064] S200: Obtain the actual length of each slot bottom plate 11 based on the sectional view, obtain the actual length of each rib line 2 based on the front view, and draw the unfolded view of the slot bottom plate 11.

[0065] Optionally, the actual length of the bottom plate 11 is obtained by measuring the length of the line segment corresponding to each bottom plate 11 in the sectional view. The actual length of the rib line 2 is obtained by measuring the length of the line segment corresponding to each rib line 2 in the front view. The unfolded view of the bottom plate 11 is shown below. Figure 4 As shown.

[0066] S300: In the front view, connect the diagonals of the side plates 12 of the multiple segmented keel base plates 1, and measure the projected length of the diagonals.

[0067] A schematic diagram of the diagonal of the side panel is shown below. Figure 5 As shown, one of the side plates 12 has two diagonals.

[0068] S400: Obtain the actual length of the diagonal based on the projected length of the diagonal.

[0069] In this embodiment, the distance between any two adjacent rib lines 2 along the fore-and-aft direction of the ship is L; step S400 includes:

[0070] Draw two parallel lines that are parallel and spaced apart, with a distance of L between them.

[0071] Draw a perpendicular line from the first connection point of one of the parallel lines to the other parallel line, intersecting at the second connection point. With the first connection point as the center and the projected length of the diagonal as the radius, draw an arc that intersects the parallel line containing the first connection point at the third connection point. Connect the second connection point and the third connection point.

[0072] like Figure 6As shown, the distance between two parallel lines is L. A perpendicular line is drawn from the first connecting point of one parallel line to the other parallel line, intersecting at the second connecting point. The distance between the first and second connecting points is L. An arc is drawn with the first connecting point as the center and the projected length of the diagonal as the radius, intersecting the parallel line containing the first connecting point at the third connecting point. The distance between the first and third connecting points is equal to the projected length La of the diagonal. Connecting the second and third connecting points, the distance between the second and third connecting points is the actual length LA of the diagonal. Repeating this step yields the actual lengths of all diagonals, as shown... Figure 7 As shown.

[0073] In other embodiments, the actual length of the diagonal can also be obtained by direct calculation. Specifically, step S400 includes:

[0074] Calculate the actual length LA of the diagonal. 2 =L 2 +La 2 , where La is the projected length of the corresponding diagonal.

[0075] This process can also yield the actual length of the diagonal.

[0076] S500: Draw the unfolded view of the side plate 12 in the unfolded view of the bottom plate 11 based on the actual length of the diagonal, so as to obtain the unfolded view of the trough-shaped keel bottom plate.

[0077] Specifically, S500 includes steps S510-S540.

[0078] S510: Draw the straight lines containing each horizontal seam 3 based on the actual length of the diagonal.

[0079] Specifically, the multiple rib lines 2 are numbered 1, 2, ..., n in the forward and backward direction of the ship, wherein the 2nd, 3rd, ..., n-1th rib lines 2 are connected to the transverse seam line 3; the multiple rib lines 2 each have a first end point located on one side of the ship and a second end point located on the other side of the ship.

[0080] In step S510, the straight lines of the transverse seam 3 connected to the first endpoints of the n rib lines 2 are drawn in sequence, and the straight lines of the transverse seam 3 connected to the second endpoints of the n rib lines 2 are drawn in sequence.

[0081] The process of drawing the straight line of the transverse suture line 3 that connects to the first endpoint of the i-th rib line 2 includes steps S511-S512, where 2≤i≤n-1.

[0082] S511: Draw a first arc with the first endpoint of the (i-1)th rib line 2 as the center and the actual length of the diagonal passing through the first endpoint of the (i-1)th rib line 2 and close to the diagonal of the ith rib line 2 as the radius; draw a second arc with the first endpoint of the (i+1)th rib line 2 as the center and the actual length of the diagonal passing through the first endpoint of the (i+1)th rib line 2 and close to the diagonal of the ith rib line 2 as the radius.

[0083] There are two diagonals passing through the first endpoint of the (i-1)th rib line 2. One extends diagonally toward the ith rib line, i.e., close to the ith rib line, and the other extends diagonally toward the (i-2)th rib line, i.e., close to the (i-2)th rib line.

[0084] S512: The first arc and the second arc intersect at the intersection point of the first arc. Connect the intersection point of the first arc with the first endpoint of the i-th rib line 2 to obtain the straight line of the transverse seam line 3 connected to the first endpoint of the i-th rib line 2.

[0085] Understandably, if all side plates 12 are located on the same plane, the intersection of the arcs is the endpoint of the transverse seam 3 furthest from the rib line 2, and there is no need to measure the actual length of the transverse seam 3. However, in reality, the side plates 12 are located on different planes, so there may be a certain deviation between the intersection of the arcs and the endpoint of the transverse seam 3 furthest from the rib line 2. For a channel-shaped keel base plate where all side plates 12 are located on the same plane, subsequent steps S520-S530 can be omitted, and the intersection of the drawn arcs can be directly used as the endpoint of the transverse seam 3.

[0086] Similar to the above process, in step S510, drawing the straight line where the transverse suture line 3 connects to the second endpoint of the i-th rib line 2 includes steps S513-S514, where 2≤i≤n-1.

[0087] S513: Draw a third arc with the second endpoint of the (i-1)th rib line 2 as the center and the actual length of the diagonal passing through the second endpoint of the (i-1)th rib line 2 and close to the diagonal of the ith rib line 2 as the radius; draw a fourth arc with the second endpoint of the (i+1)th rib line 2 as the center and the actual length of the diagonal passing through the second endpoint of the (i+1)th rib line 2 and close to the diagonal of the ith rib line 2 as the radius.

[0088] S514: The third arc and the fourth arc intersect at the intersection point of the second arc. Connect the intersection point of the second arc with the second endpoint of the i-th rib line 2 to obtain the straight line where the transverse seam line 3, which is connected to the second endpoint of the i-th rib line 2, is located.

[0089] This method can be used to draw the transverse seam line 3 connected to the 2nd, 3rd, ..., n-1th rib lines. For the transverse seam line 3 connected to the rib lines 2 at both ends, i.e. the 1st or nth rib line 2, other adjacent hull sections located outside the keel bottom plate and adjacent rib lines in the ship can be selected as references. The transverse seam line 3 connected to the rib line 2 can be obtained through similar steps, i.e., the diagonal line is drawn, and the straight line where the transverse seam line 3 connected to the 1st or nth rib line 2 is located is obtained according to the actual length of the diagonal line.

[0090] S520: Obtain the actual length of each horizontal seam 3 based on the front view.

[0091] In step S520, the actual length of the transverse seam 3 is obtained by measuring the length of the line segment corresponding to each transverse seam 3 in the front view.

[0092] S530: In the straight line containing the transverse suture 3, obtain the position of the endpoint of the transverse suture 3 away from the rib line 2 based on the actual length of the transverse suture 3.

[0093] This step will allow you to draw the unfolded diagram of horizontal seam line 3. The following is combined with... Figure 8 Let's take one of the horizontal seams, 3, as an example.

[0094] Figure 8 In this process, the horizontal seam 3 to be drawn is BD, which is the horizontal seam 3 connecting to the endpoint B of the rib line 2. First, with the endpoint A adjacent to endpoint B as the center, draw a first arc with the actual length of the diagonal AD' as the radius, where the actual length of the diagonal AD' has been obtained in step S400. Then, with the endpoint C adjacent to endpoint B as the center, draw another first arc with the actual length of the diagonal CD' as the radius, where the actual length of the diagonal CD' has been obtained in step S400. The first arc and the second arc intersect at a point, namely the intersection point D' of the first arc. Connecting BD' will give the straight line containing the horizontal seam 3. Then, based on the actual length of the horizontal seam 3, obtain the position of the endpoint of the horizontal seam 3 furthest from the rib line 2, namely endpoint D. BD is the horizontal seam 3 to be drawn.

[0095] S540: Connect the endpoints of each transverse suture 3 away from the rib line 2 in sequence.

[0096] The above steps allow for further layout and unfolding of the side plate 12 within the unfolded diagram of the bottom plate 11, resulting in the unfolded diagram of the trough-shaped keel base plate. This layout method for the trough-shaped keel base plate allows for the sequential unfolding of the bottom plate 11 and the side plate 12, ensuring they are located within the same layout diagram, reducing errors and eliminating the need for subsequent splicing operations.

[0097] This embodiment also provides a method for processing a channel-shaped keel base plate, including the above-mentioned method for laying out the channel-shaped keel base plate, and further including the method following the method for laying out the channel-shaped keel base plate:

[0098] The trough-shaped keel base plate is processed based on its unfolded drawing. This process includes cutting, bending, and other steps to complete the fabrication of the trough-shaped keel base plate.

[0099] In this method of laying out the trough-shaped keel base plate, the trough base plate 11 and the side plate 12 are unfolded in sequence to reduce errors and omit the subsequent splicing operation.

[0100] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for laying out a trough-type keel bottom plate, used for laying out and unfolding a trough-type keel bottom plate, wherein the trough-type keel bottom plate includes multiple segmented keel bottom plates arranged sequentially along the fore-and-aft direction of the ship, each of the multiple segmented keel bottom plates includes a trough bottom plate and two side plates, the two side plates are respectively arranged on the left and right sides of the trough bottom plate, and there are rib lines between any two adjacent trough bottom plates, and the distance between any two adjacent rib lines along the fore-and-aft direction of the ship is the same; Its features are, include: S100: Obtain the front view of the channel keel bottom plate and the sectional view of the front view along the longitudinal line of the ship; S200: Based on the sectional view, obtain the actual length of each of the groove bottom plates, based on the front view, obtain the actual length of each of the rib lines, and draw the unfolded view of the groove bottom plates; S300: In the front view, connect the diagonals of the side plates of the multiple segmented keel base plates, and measure the projected length of the diagonals; S400: Obtain the actual length of the diagonal based on the projected length of the diagonal; S500: Based on the actual length of the diagonal, draw the unfolded view of the side plate in the unfolded view of the bottom plate of the channel to obtain the unfolded view of the channel-shaped keel bottom plate; The distance between any two adjacent rib lines along the fore-and-aft direction of the ship is L; step S400 includes: Draw two parallel lines that are parallel and spaced apart, with a distance of L between the two parallel lines; Draw a perpendicular line from the first connection point of one of the parallel lines to the other parallel line, intersecting at the second connection point. With the first connection point as the center and the projected length of the diagonal as the radius, draw an arc that intersects the parallel line where the first connection point is located at the third connection point. Connect the second connection point and the third connection point. The distance between any two adjacent rib lines along the fore-and-aft direction of the ship is L; step S400 includes: Calculate the actual length LA of the diagonal. 2 =L 2 +La 2 , where La is the projected length of the corresponding diagonal.

2. The method for laying out the channel-type keel base plate according to claim 1, characterized in that, There is a horizontal seam between any two adjacent side panels; Step S500 includes: S510: Draw the straight lines containing each of the horizontal seams based on the actual length of the diagonal; S520: Obtain the actual length of each of the horizontal seams based on the front view; S530: In the straight line where the transverse suture line is located, the position of the endpoint of the transverse suture line away from the rib line is obtained based on the actual length of the transverse suture line; S540: Connect the endpoints of each of the transverse sutures away from the rib line in sequence.

3. The method for laying out the channel-type keel base plate according to claim 2, characterized in that, The multiple rib lines are numbered sequentially as 1, 2, ..., n along the fore-and-aft direction of the ship, wherein the 2nd, 3rd, ..., n-1th rib lines are connected to the transverse seam lines; each of the multiple rib lines has a first endpoint located on one side of the ship and a second endpoint located on the other side of the ship. In step S510, the straight lines connecting the first endpoints of the n rib lines to the transverse seam lines are drawn sequentially, and the straight lines connecting the second endpoints of the n rib lines to the transverse seam lines are drawn sequentially. The process of drawing the straight line connecting the first endpoint of the i-th rib line includes steps S511-S512, where 2≤i≤n-1: S511: With the first endpoint of the (i-1)th rib line as the center, draw a first arc with the actual length of the diagonal line passing through the first endpoint of the (i-1)th rib line and close to the i-th rib line as the radius; With the first endpoint of the (i+1)th rib line as the center, draw a second arc with the actual length of the diagonal line passing through the first endpoint of the (i+1)th rib line and close to the i-th rib line as the radius; S512: The first arc and the second arc intersect at the intersection point of the first arc. Connect the intersection point of the first arc with the first endpoint of the i-th rib line to obtain the straight line where the transverse seam line is connected to the first endpoint of the i-th rib line.

4. The method for laying out the channel-type keel base plate according to claim 3, characterized in that, In step S510, drawing the straight line containing the transverse suture line connecting the second endpoint of the i-th rib line includes steps S513-S514, where 2≤i≤n-1: S513: Using the second endpoint of the (i-1)th rib line as the center, draw a third arc with the actual length of the diagonal line passing through the second endpoint of the (i-1)th rib line and close to the i-th rib line as the radius; With the second endpoint of the (i+1)th rib line as the center, draw a fourth arc with the actual length of the diagonal line passing through the second endpoint of the (i+1)th rib line and close to the i-th rib line as the radius; S514: The third arc and the fourth arc intersect at the intersection point of the second arc. Connect the intersection point of the second arc with the second endpoint of the i-th rib line to obtain the straight line where the transverse seam line is connected to the second endpoint of the i-th rib line.

5. The method for laying out the channel-type keel base plate according to claim 2, characterized in that, In step S520, the actual length of the transverse seam is obtained by measuring the length of the line segment corresponding to each transverse seam in the front view.

6. The method for laying out the channel-type keel base plate according to claim 1, characterized in that, In step S200, the actual length of the bottom plate of the trough is obtained by measuring the length of the line segment corresponding to each bottom plate of the trough in the cross-sectional view.

7. The method for laying out the channel-type keel base plate according to claim 1, characterized in that, In step S200, the actual length of the rib line is obtained by measuring the length of the line segment corresponding to each rib line in the front view.

8. A method for processing a channel-type keel base plate, characterized in that, The method for laying out the grooved keel base plate as described in any one of claims 1-7 further includes, following the method for laying out the grooved keel base plate: The grooved keel base plate is processed based on its unfolded diagram.

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