Method for manufacturing profile template of side bracket

Abstract

The present invention provides a method for manufacturing a sectional line template of a side bracket, and the method includes: S1, obtaining cross-sectional views of each template bracket; S2, adding template joint lines to the sectional line template in the cross-sectional view of the template bracket to split one sectional line template into multiple small templates, and marking the positioning waterlines of each small template and longitudinal section lines of at least two small templates to obtain a design drawing of the template bracket; S3, machining each small template and each support post according to the design drawing of the template bracket, and marking the corresponding positioning waterlines and longitudinal section lines on the small templates; S4, installing each support post on an iron platform; then, pre-installing the corresponding small templates on each support post to complete the splicing of each small template; by adding template joint lines in the cross-sectional view of the template bracket, the present invention splits the sectional line template into multiple small templates, improves the utilization rate of steel plates during subsequent blanking and cutting, and reduces material costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of shipbuilding, and particularly relates to a method for manufacturing a profile template of a side jig. Background Art

[0002] Curved sections such as the bow section and the stern section of a ship have the characteristics of large line type changes and difficult precision control. Their assembly precision on the jig is directly related to the construction quality and efficiency of the ship. In order to ensure a better external line type of the section, a template-type jig with the left side of the section as the jig base surface is usually selected as the side jig for building the curved section. However, due to the large change in the outer plate line type on the left side of the section, some profile templates in the template-type jig have large sizes; currently, these large-size profile templates are directly marked and cut on large-size steel plates at one time, leaving a lot of steel plate waste, resulting in material waste and significantly increasing the material cost. Summary of the Invention

[0003] In view of the above disadvantages of the prior art, the purpose of the present invention is to provide a method for manufacturing a profile template of a side jig, which splits a large-size profile template into multiple small templates for blanking and cutting to improve the utilization rate of steel plate materials.

[0004] To achieve the above object and other related objects, the present invention provides a method for manufacturing a profile template of a side jig. The side jig includes a plurality of spaced-apart template frames. Each template frame includes a profile template and a plurality of struts for supporting the profile template. The method for manufacturing the profile template includes:

[0005] S1. Obtain the cross-sectional view of each template frame. The cross-sectional view of the template frame includes a profile template, a horizontal center line, a jig ground line, a horizontal reference line, and the center lines of each strut;

[0006] S2. Add template joint lines to the profile template in the cross-sectional view of the template frame to split one profile template into multiple small templates, and mark the positioning water lines of each small template and the longitudinal section lines of at least two small templates to obtain the design drawing of the template frame; the determination basis of the positioning water lines on each small template includes the center lines of each strut; the determination method of the longitudinal section lines includes: taking the horizontal reference line as the reference, adding a plurality of auxiliary reference lines in the cross-sectional view of the template frame, and each auxiliary reference line is located between the horizontal reference line and the horizontal center line; according to the positions of each reference line, mark the longitudinal section lines of at least two small templates on the profile template, and at least one of the adjacent two small templates has a longitudinal section line;

[0007] S3. Process each small template and each strut according to the design drawing of the template frame, and mark the corresponding positioning water lines and longitudinal section lines on the small templates;

[0008] S4. Layout the preset distance baseline, the centerlines of each support column, and each reference line on the iron platform, and install each support column on the iron platform according to the positions of the centerlines of each support column; then, pre-install the corresponding small templates on each support column, so that the positioning waterline on the small template coincides with the centerline of the corresponding support column, and the longitudinal section line on the small template coincides with the corresponding reference line, and complete the splicing of each small template to obtain a section line template that meets the requirements.

[0009] Preferably, at least one cross-sectional view of the template frame includes the preset distance baseline; in the cross-sectional view including the preset distance baseline, the determination basis of the positioning waterline on each small template further includes the preset distance baseline.

[0010] Preferably, in S2, the distance between adjacent two reference lines is equal.

[0011] Preferably, in S2, after the plate seam lines are added, according to the estimated welding shrinkage, anti-deformation addition is performed on the small template at the upper opening of the bow section line template to optimize the upper edge line of the small template.

[0012] As described above, a method for manufacturing a section line template of a side bracket of the present invention has the following beneficial effects:

[0013] The present invention adds a template joint line in the cross-sectional view of the template frame to split the section line template into multiple small templates, so as to improve the utilization rate of the steel plate during subsequent blanking and cutting, and reduce the material cost; at the same time, a positioning waterline and a longitudinal section line are added to the small template as the reference for subsequent splicing of each small template, improving the splicing accuracy to ensure that the spliced section line template meets the requirements. Description of the Drawings

[0014] Figure 1 It is a method for manufacturing a section line template of a side bracket.

[0015] Figure 2 It is a right view of the stern section of a ship.

[0016] Figure 3 It is a cross-sectional view of the template frame at the template line A.

[0017] Figure 4 It is a cross-sectional view of the template frame at the template line B.

[0018] Figure 5 It is a cross-sectional view of the template frame at the template line C.

[0019] Figure 6 It is a cross-sectional view of the template frame at the template line D.

[0020] Figure 7 It is a cross-sectional view of the template frame at the template line E.

[0021] Figure 8It is a cross-sectional view of the formwork support at the formwork line F.

[0022] Figure 9 It is a cross-sectional view of the formwork support at the formwork line G.

[0023] Figure 10 It is the design drawing of the formwork support at the formwork line E.

[0024] Figure 11 It is Figure 10 The partial enlarged view of the medium-sized line formwork.

[0025] Figure 12 It is the schematic diagram of each small formwork of the formwork line at the formwork line E.

[0026] Figure 13 It is the schematic diagram of adding anti-deformation to the small formwork.

[0027] Explanation of the reference numerals

[0028] Stern cast steel part 1, outer plate 2, transverse plate seam line 2a, longitudinal plate seam line 2b, preset distance from the baseline 3, horizontal center line 4, ground line of the jig 5, horizontal reference line 6a, auxiliary reference line 6b, formwork line 7, formwork joint line 7a, positioning water line 7b, longitudinal section line 7c, center line of the strut 8. Specific implementation manners

[0029] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0030] Please refer to Figures 1 to 13 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0031] The side staging involved in the present invention is a template-type staging with the segmented outer plate as the base surface, which can be used to complete the construction of side segments, bow segments, and stern segments; the side staging includes a plurality of template frames, and each template frame includes a profile template and a plurality of struts for supporting the profile template. The external profile of the segment can be ensured to be better through the profile templates on each template frame. Now, taking the stern segment as an example, the manufacturing method of the profile template of the side staging will be described.

[0032] As Figure 1 shown, the present invention provides a manufacturing method for the profile template of the side staging, and the method includes:

[0033] S1. Obtain the cross-sectional views of each template frame, and the cross-sectional views of the template frame include profile templates, horizontal centerlines, staging ground lines, horizontal reference lines, and the centerlines of each strut;

[0034] Figure 2 is the right view of the stern segment, on which the positions of template lines A - F and the position of the ship's baseline are marked. Since Figure 2 taking the centerline of the shaft hole as the X-axis and the ship height direction as the Z-axis, the Y-axis direction is further determined, and a coordinate system for the stern segment is established. And Figure 2 the relative position relationships between template lines A - E and the transverse plate seam 2a of the outer plate bow part, the centerline of the shaft hole, and the relative position relationships between template lines G - F and the ship's baseline are all determined based on the coordinate system of the stern segment and can be directly measured.

[0035] Figure 2 The positions of template lines A - G in

[0036] can be determined according to the characteristics of the stern segment and the requirements of the staging design. When determining, it is required that the minimum distance from template lines B - E to the transverse plate seam 2a of the outer plate is 80 mm - 150 mm, and template lines B - E are all required to be located on the rib lines; the minimum distance from plate seams F and G to the longitudinal plate seam 2b of the outer plate is 80 mm - 150 mm, and plate seams F - G are all required to be located on the flat plate lines; the position of template line A is comprehensively determined by template line B and the length of the stern cast steel part 1 to ensure the support stability of the lifting and positioning of the stern cast steel part 1 and the outer plate 2 involved in the segment. Figure 2The positions of the template lines in the template are cut to obtain the section diagrams at the positions of the template lines, and the section diagrams include the outer edge lines of the outer plates and the horizontal center line 4; wherein, the horizontal center line 4 at the template line AE is the transverse center line, which is the intersection line of the middle longitudinal section of the stern section (i.e., the longitudinal section passing through the center line of the shaft hole) and the corresponding section plane; the horizontal center line 4 at the template lines F to G is the longitudinal center line, which is the intersection line of the middle longitudinal section of the stern section and the corresponding section plane; the outer edge lines of the outer plates and the horizontal center line 4 in each section diagram are called, and the outer edge lines of the outer plates are used as the upper edge lines of the corresponding mold line templates 7, and the lower edge lines of the corresponding mold line templates 7 are drawn to determine the contour lines of each mold line template 7, and the tire frame ground line 5, the horizontal reference line 6a and the center lines 8 of each pillar are drawn to obtain the cross-sectional diagrams of each template frame, such as Figures 3 to 9 shown.

[0037] The lower edge line of the mold line template 7 is obtained by normally offsetting the upper edge line of the mold line template 7 outward by a preset thickness value. The offset thickness value is comprehensively determined by the strength, rigidity and cost budget of the mold line template 7, and is generally 18mm to 22mm. In this embodiment, it is preferably set to 18mm.

[0038] Depend on Figures 3 to 9 It can be seen that the lowest point of the upper edge line of the profile template is on the template frame at E, and the distance from the lowest point of the tire frame working surface (i.e. the lowest point of the outer plate) to the tire frame ground is required to be 600mm~800mm, and the distance between the tire frame ground line 5 and the horizontal center line 4 is required to be S mm, wherein S is a positive integer when divided by 100; since in this embodiment, the distance between the horizontal center line 4 at E and the lowest point here (i.e. the half-width distance) is known to be 2260mm, the calculated distance between the horizontal center line 4 and the tire frame ground line 5 is 2860mm~3060mm, based on the cost of the pillar material, the distance between the horizontal center line 4 and the tire frame ground line 5 is taken as 2900mm, that is, the actual distance from the lowest point of the tire frame working surface to the tire frame ground line 5 is 640mm, and on this basis, the tire frame ground line 5 can be marked.

[0039] Since the height of the horizontal reference line 6a is determined by the height of a person squatting for welding, it is generally set to 0.5m to 0.8m. In this embodiment, the horizontal reference line 6a is a 700mm horizontal reference line.

[0040] Since the cross-section of the formwork support at the formwork lines A - E is perpendicular to that at the formwork lines F - G, when determining the positions of the centerlines 8 of the columns in the formwork support at the formwork lines A - E, it is necessary to first determine the position of the preset distance from the baseline 3; the position of the preset distance from the baseline 3 is determined by the ship's baseline and the horizontal centerline 4. Then, taking the preset distance from the baseline 3 as a reference, mark the positions of the centerlines 8 of the columns on both the left and right sides of the preset distance from the baseline 3; when determining the positions of the centerlines 8 of the columns in the formwork support at the formwork lines F - G, it is necessary to use the projection line of the transverse plate seam line 2a at the bow of the outer plate on the corresponding section plane as a reference to mark the positions of the centerlines 8 of the columns ( Figure 8 and Figure 9 in Figure 9 , the projection line of the transverse plate seam line 2a at the bow of the outer plate on the corresponding section plane coincides with the leftmost centerline 8 of the column); when marking the centerline 8 of the column, ensure that the column arranged at the centerline 8 of the column can stably support the outer plate 2 or the stern cast steel part 1;

[0041] The height of the column is the distance from the intersection point of the corresponding centerline 8 of the column and the upper edge line of the form line template 7 to the ground line 5 of the jig.

[0042] S2. Add a form joint line 7a to the form line template 7 in the cross-section view of the formwork support to split one form line template 7 into multiple small form templates, and mark the positioning waterlines 7b of each small form template and the longitudinal section lines 7c of at least two small form templates to obtain the design drawing of the formwork support; the determination basis of the positioning waterlines 7b on each small form template includes the centerlines 8 of the columns; the determination method of the longitudinal section lines 7c includes: taking the horizontal reference line 6a as a reference, adding multiple auxiliary reference lines 6b in the cross-section view of the formwork support, and each auxiliary reference line 6b is located between the horizontal reference line 6a and the horizontal centerline 4; according to the positions of the reference lines, mark the longitudinal section lines 7c of at least two small form templates on the form line template, and at least one small form template among adjacent two small form templates has a longitudinal section line 7c;

[0043] When adding the form joint line 7a to the form line template 7, it is necessary to ensure that the length of the upper edge line of each small form template is 500 mm - 700 mm to maximize nesting and achieve the purpose of saving material costs. The added form joint line 7a does not intersect with the centerline 8 of the column, and each small form template passes through at least one centerline 8 of the column.

[0044] The determination basis of the positioning waterlines 7b on each small form template in each cross-section view of the formwork support includes the centerlines 8 of the columns, that is, according to the intersection lines of the centerlines 8 of the columns and the form line template 7, determine the positions of the positioning waterlines 7b on each small form template.

[0045] For the cross-sectional view of the template frame at locations A to E, the basis for determining the positioning waterline 7b on each small template also includes a preset distance baseline 3, that is, the position of the positioning waterline 7b on one of the small templates is determined based on the intersection line of the preset distance baseline 3 and the mold line template 7.

[0046] When determining the position of the longitudinal section line 7c, the distances between two adjacent reference lines are equal to reduce the difficulty of marking subsequent reference lines.

[0047] The template design diagram at E determined by the above method is as follows: Figure 10 As shown, Figure 11 This is a partial enlarged view of the mold line template 7 in the template frame design drawing at E.

[0048] Through past experience, it is found that when the outer plate spot-welded on the mold line template 7 at E is completely welded with the internal structures such as the rib plate and the platform plate, shrinkage deformation occurs, which causes the upper opening of the bow to shrink inward (i.e., the upper opening of the bow moves toward the direction close to the mid-longitudinal section) when the outer plate is separated from the mold line template 7, resulting in a phenomenon of smaller half-width. It is necessary to add a small template at the upper opening of E for anti-deformation (i.e., take the left end point of the upper edge line of the small template as the center of the circle, rotate the upper edge line clockwise, so that the distance between the right end point of the rotated upper edge line and the right end point of the initial upper edge line is equal to the estimated welding shrinkage). The schematic diagram of adding a small template for anti-deformation is shown as follows Figure 13 As shown, the estimated welding shrinkage in this embodiment is 10 mm.

[0049] S3. According to the template frame design drawing, process each small template and each pillar, and mark the corresponding positioning waterline and longitudinal section line on the small template;

[0050] The small templates of the mold line template at E are as follows Figure 12 shown.

[0051] S4. Lay out preset distance baselines, center lines of each pillar and each reference line on the iron platform, and install each pillar on the iron platform according to the position of the center line of each pillar; then, pre-install corresponding small templates on each pillar, so that the positioning waterline on the small template coincides with the center line of the corresponding pillar, and the longitudinal section line on the small template coincides with the corresponding reference line, and complete the splicing of each small template to obtain a profile template that meets the requirements.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for manufacturing a contour template of a side bracket, the side bracket comprising a plurality of template frames, each template frame including a contour template and a plurality of struts for supporting the contour template; characterized in that, The method for manufacturing the profile template includes the following steps: S1. Obtain the cross-sectional views of each template frame, where the cross-sectional views of the template frame include the profile template, the horizontal center line, the ground line of the jig, the horizontal reference line, and the center lines of each support pillar; S2. Add template joint lines to the profile template in the cross-sectional view of the template frame to split one profile template into multiple small templates, and mark the positioning water lines of each small template and the longitudinal section lines of at least two small templates to obtain the design drawing of the template frame; the determination basis of the positioning water lines on each small template includes the center lines of each support pillar; the determination method of the longitudinal section lines includes: taking the horizontal reference line as the reference, adding multiple auxiliary reference lines in the cross-sectional view of the template frame, and each auxiliary reference line is located between the horizontal reference line and the horizontal center line; according to the positions of each reference line, mark the longitudinal section lines of at least two small templates on the profile template, and at least one small template among adjacent two small templates has a longitudinal section line; S3. Process each small template and each support pillar according to the design drawing of the template frame, and mark the corresponding positioning water lines and longitudinal section lines on the small templates; S4. Layout the preset distance from the baseline, the center lines of each support pillar, and each reference line on the iron platform, and install each support pillar on the iron platform according to the positions of the center lines of each support pillar; then, pre-install the corresponding small templates on each support pillar, so that the positioning water line on the small template coincides with the center line of the corresponding support pillar, and the longitudinal section line on the small template coincides with the corresponding reference line, and complete the splicing of each small template to obtain a profile template that meets the requirements.

2. The manufacturing method of the section line template of a side fender according to claim 1, characterized in that, At least one cross-sectional view of the template frame includes a preset distance from the baseline; in the cross-sectional view including the preset distance from the baseline, the determination basis of the positioning water lines on each small template also includes the preset distance from the baseline.

3. The manufacturing method of the section line template of a side bracket according to claim 1, characterized in that, In S2, the distance between adjacent two reference lines is equal.

4. A manufacturing method of a contour template of a side bracket, according to any one of claims 1 to 3, characterized in that, In S2, after the template joint lines are added, according to the estimated welding shrinkage, anti-deformation is added to the small template at the upper opening of the bow profile template to optimize the upper edge line of this small template.

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