Arc-shaped plate unit plate rib positioning and assembling sample plate and using method thereof

Abstract

The invention provides an arc-shaped plate unit plate rib positioning and assembling sample plate and a using method thereof, the sample plate is applied to an arc-shaped plate, and a plurality of plate ribs are sequentially arranged in the length direction of the inner side of the arc-shaped plate; the positioning assembly sample plate comprises a first edge and a second edge which are oppositely arranged, the first edge is provided with first grooves matched with the cross sections of the plate ribs, openings of the first grooves are located in the first edge, the first grooves extend along the side facing the second edge, and the number of the first grooves is the same as that of the plate ribs. The positioning assembly sample plate is made of a stainless steel sheet, has rigidity, can meet the auxiliary positioning and detection functions, and is light in weight, convenient to hold in the operation process and easy to operate; the positioning assembly sample plate is simple in structure, has the functions of various detection, inspection, auxiliary positioning and the like of key and difficult points for manufacturing and controlling the arc-shaped plate unit, and is comprehensive in function and effective in implementation; the assembly precision and efficiency of the arc-shaped plate unit are greatly improved, and the manufacturing process of the arc-shaped plate unit has a relative detection or control basis.

Description

Technical Field

[0001] The present application relates to the technical field of steel bridge manufacturing, and in particular to a curved plate unit rib positioning assembly template and a method for using the same. Background Art

[0002] Steel bridge structures primarily consist of box girders, trusses, and steel towers, often constructed from multiple plate elements, forming box-shaped, I-shaped, or polygonal structures. These elements are typically straight plate elements. Key control points for straight plate elements focus on flatness, rib perpendicularity, and rib spacing. Common inspection methods include using a flat ruler to measure plate flatness, a tape measure to measure rib spacing, and a square to measure rib perpendicularity.

[0003] As a key component of steel bridge segments, curved plate elements perform the same matching and force-transmitting functions as straight plate elements in longitudinal connections. Therefore, the control points for curved plate element fabrication are similar to those for straight plate elements. However, during actual fabrication and testing, conventional tools and techniques used for straight plate elements are inapplicable to curved plate elements. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a curved plate unit rib positioning assembly template and its use method, so as to solve the problem that conventional detection tools and means used for straight plate units in the prior art are not applicable to high-precision curved plate units.

[0005] In a first aspect, the present application provides a curved plate unit plate rib positioning assembly template, which is applied to a curved plate, and a plurality of plate ribs are sequentially arranged along the inner length direction of the curved plate; The positioning assembly template includes a first side and a second side that are arranged opposite to each other, the first side is provided with a first groove that matches the cross section of the plate rib, the opening of the first groove is located on the first side, the first groove extends along a side toward the second side, and the number of the first grooves is the same as the number of the plate ribs; One side of the first groove is a plate rib radial inspection edge, and the inclination of each plate rib radial inspection edge is different. The other side of the first groove is inclined away from the side of the corresponding plate rib radial inspection edge.

[0006] In one embodiment, the radial inspection edge of the plate rib is inclined toward the side where the corresponding plate rib is located so as to fit with the corresponding plate rib. The first edge is an inner arc reference edge and is arc-shaped. The inner arc reference edge coincides with the inner curved surface of the arc-shaped plate. At least one oblong hand hole is provided on the side close to the second edge, and a weight-reducing hole is also provided on the positioning assembly template between the first grooves.

[0007] In one embodiment, the distance between the hand hole and the second side is 45 mm to 55 mm.

[0008] In one embodiment, an alignment notch is provided in the middle of the first side, and the alignment notch is a right-angled triangle structure.

[0009] In one embodiment, the thickness of the positioning assembly template is 3 mm to 4 mm.

[0010] In one embodiment, the arc-shaped plate includes: a plate member that is arc-shaped and has an inner side surface; and plate ribs that are sequentially arranged on the inner side surface of the plate member along the length direction of the plate member.

[0011] In one embodiment, a longitudinal base line is drawn on the plate, and the position of the alignment notch matches the position of the longitudinal base line.

[0012] In a second aspect, an embodiment of the present invention provides a method for using a curved plate unit rib positioning assembly template, comprising the following steps: Positioning and assembling templates to assist in detecting the arc accuracy of the inner side of the curved plate; Plate rib assembly; Insert the positioning assembly template into the curved plate in a manner such that the plate ribs and the first grooves correspond to each other; Check the fit between the plate rib surface and the positioning assembly template one by one; Position the positioning assembly template and re-measure the arc surface curvature, plate rib positioning accuracy and plate rib radial accuracy within the entire length of the arc plate until all are qualified.

[0013] In one embodiment, the horizontal baseline, the vertical baseline and the plate rib position line of the arc-formed curved plate are inspected; and / or Assemble the plate ribs by spot welding according to the plate rib position lines; and / or Insert the positioning assembly template into the curved plate in a manner such that the plate ribs and the first grooves correspond to each other, and align the corner points of the alignment notches with the longitudinal baseline of the curved plate; and / or Check the fit of the rib surface to the radial inspection edge of the rib of the positioning assembly template for each rib; and / or Align the corner point of the groove with any position of the longitudinal baseline of the arc plate.

[0014] In one embodiment, a method for using a positioning assembly template to assist in detecting the arc forming accuracy of the inner side of a curved plate includes: aligning the alignment notch of the positioning assembly template with the longitudinal baseline at any position in the curved plate, ensuring that the curved plate is perpendicular to the positioning assembly template, and using a feeler gauge to check the fit between the first side of the positioning assembly template and the inner side of the curved plate; when the gap is ≤1mm, the curved plate is determined to be qualified.

[0015] The positioning assembly template of the present application is made of stainless steel thin plate, which has a certain rigidity to meet the auxiliary positioning and detection functions, and is light in weight, easy to hold during operation, and simple to operate; the positioning assembly template has a simple structure, but has various detection, inspection and auxiliary positioning functions for the key and difficult points of arc plate unit production control, and is comprehensive in function and effective in implementation; the present invention greatly improves the assembly accuracy and efficiency of the arc plate unit, so that the production process of the arc plate unit has a relative detection or control basis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings of the embodiments. Obviously, the drawings described below only relate to some embodiments of the present application and are not intended to limit the present application. Figure 1 This is a structural diagram of the curved plate according to an embodiment of the present application; Figure 2 A plan view of the curved plate and its longitudinal base line according to an embodiment of the present application; Figure 3 This is a schematic diagram of the line drawing of the curved plate according to an embodiment of the present application; Figure 4 A structural diagram of the positioning assembly template for the embodiment of the present application; Figure 5 This is a schematic diagram showing the matching of the positioning assembly template and the curved plate in the embodiment of the present application; Figure 6 This is a transverse cross-sectional view of the position of the positioning assembly template when the positioning assembly template is matched with the curved plate in an embodiment of the present application. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0018] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 unique orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0019] In the application, the word "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes are not described in detail to avoid obscuring the description of the present application with unnecessary detail. Therefore, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein. Traditional steel bridge members or steel tower segments are mostly quadrilateral or polygonal in design. Members or segments are manufactured in the factory according to the designed length, and the extension assembly and welding operations are completed at the bridge site. The processing and manufacturing precision of steel structures is extremely high, and each monitoring point is measured in millimeters. The panel misalignment or plate rib misalignment at the interface position of the member or segment is required to be ≤2mm. For polygonal box structures composed of multiple straight edges, the assembly precision of steel structures can be controlled by controlling the plate rib spacing, verticality, leveling, and interface length, width, and diagonal dimensions during the unit manufacturing and segment assembly process. This can help determine whether its size meets the matching relationship between interfaces. For curved plates, especially multi-curvature curved plates, due to the free change of curvature, the manufacturing precision of the curved area cannot be determined by simple leveling and straightedge measurement.

[0020] See Figure 1 、 Figure 2 and Figure 4 , the embodiment of the present application provides a curved plate unit plate rib positioning assembly template, which is applied to the curved plate, and a plurality of plate ribs are sequentially arranged along the inner length direction of the curved plate; The positioning assembly template includes a first side and a second side that are arranged opposite to each other, the first side is provided with a first groove that matches the cross section of the plate rib, the opening of the first groove is located on the first side, the first groove extends along a side toward the second side, and the number of the first grooves is the same as the number of the plate ribs; One side of the first groove is a plate rib radial inspection edge, and the inclination of each plate rib radial inspection edge is different. The other side of the first groove is inclined away from the side corresponding to the plate rib radial inspection edge.

[0021] The positioning assembly template of the present application is made of stainless steel thin plate, which has a certain rigidity to meet the auxiliary positioning and detection functions, and is light in weight, easy to hold during operation, and simple to operate; the positioning assembly template has a simple structure, but has various detection, inspection and auxiliary positioning functions for the key and difficult points of arc plate unit production control, and is comprehensive in function and effective in implementation; the present invention greatly improves the assembly accuracy and efficiency of the arc plate unit, so that the production process of the arc plate unit has a relative detection or control basis.

[0022] The inclination of each radial inspection edge of the plate rib in the present application is different, the purpose of which is to facilitate the fit with the corresponding plate rib, and to judge whether the plate rib assembly angle is in place by whether there is a gap between the radial inspection edge of the plate rib and the plate rib; the other side of the first groove is inclined away from the side of the corresponding radial inspection edge of the plate rib, the purpose of which is to facilitate the placement of the positioning assembly template in place (to facilitate the fit with the corresponding plate rib), and also reduce the net area of the positioning assembly template, which can reduce the weight of the positioning assembly template and facilitate the holding operation during use.

[0023] The curved plate of the present application is a multi-curvature curved plate, and its curvature can be changed freely; the plate ribs are plate-like structures.

[0024] In some embodiments, the inclination direction of each rib is different.

[0025] Exemplarily, the curved plate is a circular arc plate.

[0026] In some embodiments, the radial inspection edge of the plate rib is inclined toward the side where the corresponding plate rib is located so as to fit with the corresponding plate rib. The first edge is an inner arc reference edge and is arc-shaped. The inner arc reference edge coincides with the inner curved surface of the arc-shaped plate. At least one oblong hand hole is provided on the side close to the second edge, and a weight-reducing hole is also provided on the positioning assembly template between the first grooves.

[0027] It can be understood that the first side coincides with the inner arc of the curved plate.

[0028] It can be understood that the first edge is set to coincide with the inner arc of the arc plate, and is used to detect whether the curvature of the inner arc of the arc plate unit meets the design requirements during the auxiliary positioning process; the number of first grooves of the positioning assembly template is set according to the width of the arc plate and the number of plate ribs, and one side of the first groove is set to an oblique opening, so that it is convenient to put the positioning assembly template in place, and the net area of the positioning assembly template is reduced, which can reduce the weight of the positioning assembly template and facilitate the holding operation during use; during the use of the positioning assembly template, the radial inspection edge of the plate rib is tightly attached to the plate rib, and whether there is a gap between the radial inspection edge of the plate rib and the plate rib is used to judge whether the plate rib assembly angle is in place; the plate rib position re-inspection corner point intersects with the plate rib position line during the use of the positioning assembly template to determine the accuracy of the plate rib position.

[0029] Exemplarily, the radius of the curved plate unit is 3500 mm, 4500 mm or 5500 mm.

[0030] It can be understood that the provision of the hand hole, on the one hand, satisfies the purpose of reducing the weight of the positioning assembly template, and on the other hand, facilitates hand-held operation during use.

[0031] In some embodiments, the distance between the hand hole and the second side is 45 mm to 55 mm, for example, it can be 45 mm, 48 mm, 50 mm, 52 mm, 54 mm, 55 mm, etc.

[0032] In some embodiments, an alignment notch is provided in the middle of the first side, and the alignment notch is a right-angled triangle structure.

[0033] It can be understood that one cutting edge of the alignment notch is a right-angled side of a right triangle, which is approximately perpendicular to the arc-shaped plate edge connected thereto, and the other cutting edge is a hypotenuse of the right triangle.

[0034] In some embodiments, the curved plate includes: a plate member, which is curved and has an inner side surface; The plate ribs are sequentially arranged on the inner side surface of the plate along the length direction of the plate.

[0035] Furthermore, a longitudinal baseline is drawn on the plate, and the position of the alignment notch matches the position of the longitudinal baseline, in order to assist in alignment.

[0036] It can be understood that the inner side of the curved plate is the inner side of the plate.

[0037] It can also be understood that the first groove of the positioning assembly template is matched with the corresponding plate rib, and the inner arc reference edge is matched with the inner curved surface of the arc-shaped plate. Then, multiple plate rib radial inspection edges are simultaneously pressed against the plate skin of the plate rib to check the degree of fit between each plate rib surface and the plate rib radial inspection edge. If they are not perfectly fitted, they are adjusted to be perfectly fitted and then spot welded to fix them. After the plate ribs are spot welded, the plate rib assembly effect of the arc plate along the length direction is checked by moving the positioning assembly template. The focus should be on controlling the position of the plate rib root, the plate rib angle and the spacing between the free ends of the plate rib. The inspection process must always ensure that the inner arc reference edge and the plate rib radial inspection edge are perfectly fitted to complete the plate rib welding operation.

[0038] In some embodiments, the thickness of the positioning assembly template is 3 mm to 4 mm, for example, 3 mm, 3.2 mm, 3.5 mm, 3.6 mm, 3.8 mm, 4 mm, etc. Within this thickness range, the positioning assembly template can be made rigid while reducing its own weight, making it easier for workers to use.

[0039] For example, the positioning assembly template is made of stainless steel sheet and is cut by laser.

[0040] It can be understood that the stainless steel sheet has a good surface condition.

[0041] See Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The present application also provides a method for using a curved plate unit rib positioning assembly template, comprising the following steps: S01. Positioning and assembling templates to assist in detecting the arc accuracy of the inner side of the curved plate; S02, plate rib assembly; S03, inserting the positioning assembly template into the curved plate in a manner such that the plate ribs and the first grooves correspond to each other; S04. Check the fit between the rib surface and the positioning assembly template one by one; S05. Position the assembly template and re-measure the arc surface curvature, rib positioning accuracy and rib radial accuracy within the entire length of the curved plate until all are qualified.

[0042] In the S01: In some embodiments, the horizontal baseline, the vertical baseline and the plate rib position line of the arc-formed arc plate are checked.

[0043] In some embodiments, the method of using a positioning assembly template to assist in detecting the arc forming accuracy of the inner side of the arc plate includes: aligning the alignment notch of the positioning assembly template with the longitudinal baseline at any position in the arc plate, ensuring that the arc plate is perpendicular to the positioning assembly template, and using a feeler gauge to check the fit between the first side of the positioning assembly template and the inner side of the arc plate. When the gap is ≤1mm, the arc plate is judged to be qualified.

[0044] It can be understood that the curved plate is qualified and can participate in the assembly of the curved plate unit.

[0045] It can be understood that it is necessary to ensure that the alignment groove of the positioning assembly template coincides with the longitudinal baseline, determine the horizontal position of the positioning assembly template, and ensure that the positioning assembly template is perpendicular to the inner side of the curved plate to prevent deviations caused by improper placement and misjudgment.

[0046] In the S02: In some embodiments, the plate ribs are positioned according to the plate rib position lines and assembled by spot welding.

[0047] It can be understood that the assembly process requires that the horizontal baseline of the plate rib be strictly aligned with the horizontal baseline on the inner side of the curved wall panel, and the plate skin on both sides of the plate rib be positioned close to the plate rib position line, while paying attention to controlling the radial positioning of the plate rib.

[0048] In said S03: In some embodiments, the positioning assembly template is inserted into the curved plate in a manner that the plate ribs and the first grooves correspond to each other, and the corner points of the alignment slots are aligned with the longitudinal baseline of the curved plate.

[0049] It can be understood that the corner points of the alignment grooves are aligned with the longitudinal baseline of the curved plate. First, check whether they can be aligned smoothly. If they can, it means that there is no interference between the full width of each plate rib and the radial inspection edge of the plate rib of the positioning assembly template. If they cannot be aligned smoothly, it means that at least one plate rib assembly positioning is inaccurate and needs to be adjusted and repeated.

[0050] In said S04: In some embodiments, the fit between the rib surface and the radial inspection edge of the rib of the positioning assembly template is checked one by one.

[0051] In said S05: In some embodiments, the corner points of the alignment slots are aligned with any position of the longitudinal baseline of the curved plate.

[0052] It can be understood that when the corner point of the alignment groove is aligned with the longitudinal baseline of the arc plate, and there is no interference between the plate rib and the radial inspection edge of the plate rib of the positioning assembly template, the fit between the plate rib surface and the radial inspection edge of the plate rib of the positioning assembly template is checked one by one. The inspection method is to use a feeler gauge measurement. When the gap is ≤1mm, it is judged to be qualified. Otherwise, the plate rib angle is adjusted according to the test results until it is qualified.

[0053] The arc plate unit plate rib positioning assembly template of the present invention is used for auxiliary inspection of the arc forming accuracy of the arc plate inner arc during the arc plate unit assembly process, inspection of the arc plate unit plate rib positioning assembly accuracy and inspection of the plate rib assembly radial accuracy.

[0054] The positioning assembly template of the present invention is made of stainless steel thin plate, has a certain rigidity to meet the auxiliary positioning and detection functions, and is light in weight, easy to hold during operation, and simple to operate; the positioning assembly template has a simple structure, but has various detection, inspection and auxiliary positioning functions for the key and difficult points of arc plate unit production control, and is comprehensive in function and effective in implementation; the present invention greatly improves the assembly accuracy and efficiency of the arc plate unit, so that the production process of the arc plate unit has a relative detection or control basis.

[0055] In this application, the method for manufacturing the curved plate includes: S1. Provide panels; S2. Draw the horizontal baseline, vertical baseline, plate rib position line, plate joint position line and arc bending guide line on the plate; S3, pressing the plate into a curved plate along the curved bending guide line; S4. Weld the plate ribs according to the plate rib position line.

[0056] In order to ensure the size and accuracy of the circumferential groove of the curved plate, the present application adopts the method of cutting the plate with the net size + process quantity when cutting the plate, thereby changing the post-trimming process of the plate unit production; when marking the plate, a high-precision laser marking machine is used to replace manual marking to improve the marking accuracy; the marking type is based on the horizontal baseline, vertical baseline, plate rib position line and plate joint position line, and an arc bending guide line is added to assist in the profiling and profiling position inspection of the curved plate; in order to improve the assembly accuracy of the plate rib, the original plate rib position line is marked according to the center line of the plate rib thickness, and adjusted to the plate skin line on one side or both sides of the plate rib, thereby reducing the deviation of the plate rib assembly alignment and realizing one-side reference control or two-way control; the traditional plate unit can measure the vertical relationship between the plate rib and the panel by a protractor, and the present application adopts a positioning assembly template for the curved plate design to control the plate rib angle and realize the centripetal (center of the circle) assembly of each plate rib; the flatness of the traditional plate unit panel can be detected and controlled by a long plate ruler, and the present invention adopts an internal and external double-sided template for the arc surface design to assist in checking the curvature effect, providing an intuitive basis for the correction of the plate unit. This application mainly realizes the manufacturing precision control of multi-curvature combined arc plate units from the aspects of curvature control, plate rib spacing and angle, and welding deformation.

[0057] The arc-shaped plate of the present application is a unit. The present application manufactures the plate, plate ribs and plate joint parts together as a unit body. The present application assembles the plate ribs for the first time after the plate is bent.

[0058] In S1: In some embodiments, the plate is a rectangular parallelepiped structure.

[0059] Furthermore, the plate is a steel plate.

[0060] In some embodiments, the flatness of the plate surface is ≤1 mm / m.

[0061] In some embodiments, the straightness of the plate edge is ≤1 mm / m.

[0062] In some embodiments, the plate is first milled straight around its periphery, and then grooves are machined around the periphery of the plate.

[0063] It can be understood that the plate is milled straight all around to ensure that the straightness of all sides of the plate is ≤1mm / m. At a distance of 50mm from the edge of the plate, the groove processing alignment line is drawn to accurately locate the position of the processing head or cutting nozzle. According to the processing groove size, such as 45° single V groove or 40° single V groove, the corresponding groove size is processed by adjusting the cutting head angle, thereby realizing groove processing accuracy control and avoiding grooves of different depths and sizes that affect welding quality.

[0064] In S2: See Figure 2 In some embodiments, a high-precision laser marking machine is used to mark horizontal baselines, vertical baselines, plate rib position lines, plate joint position lines and arc bending guide lines on the plate.

[0065] It can be understood that the horizontal baseline and the longitudinal baseline will be preserved as the benchmark of the unit element until the overall assembly of the steel box girder segment. The longitudinal and transverse control of the plate unit manufacturing process is based on the horizontal baseline and the longitudinal baseline. When the steel box girder segment is assembled, the spacing between the horizontal and longitudinal baselines of adjacent plates is used to control the assembly position of the plate elements, assist in the positioning of the plate elements, and realize the assembly dimensional accuracy control of the steel box girder at the same time.

[0066] In some embodiments, the longitudinal base line is located at the center of the panel along the length direction of the panel.

[0067] In some embodiments, along the width direction of the plate, the transverse base line is located at the center of the plate or at one side of the center of the plate.

[0068] In some embodiments, a plurality of the plate rib position lines are arranged in sequence and spaced apart along the length direction of the plate.

[0069] In some embodiments, a plurality of the plate connecting position lines are sequentially spaced apart along the width direction of the plate.

[0070] In some embodiments, the arc-shaped bending guide lines are arranged at equal intervals along the length of the plate, and the distance between adjacent arc-shaped bending guide lines is less than 100 mm, for example, 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 99 mm, etc. This distance range is conducive to increasing the indentation density.

[0071] It can be understood that the plate is first bent through the arc bending guide line and then the plate rib is installed through the plate rib position line.

[0072] In the S3: See Figure 1 、 Figure 3 and Figure 4 In some embodiments, a press is used to press the plate into an arc-shaped plate along an arc-shaped bending guide line.

[0073] Furthermore, the press includes an upper die and a lower die, the upper die adopts an R150 die head, and the upper die and the lower die cooperate to complete the pressing.

[0074] It can be understood that during the pressing process, the indentation density is increased by encrypting the arc guide lines, and the pressure areas of the plate are cross-propelled to avoid hard bends or obvious straight sections on the plate surface during the bending process.

[0075] Furthermore, during the pressing process, a positioning assembly template is used to track and inspect the arc size after each pressing step. If the arc size does not meet the requirements, the press is used to re-press until the arc size meets the requirements.

[0076] It can be understood that each embossing is the arc formed by each plate pressed down by the press.

[0077] It can be understood that the inspection reference edge of the arc inspection template is designed according to the radius size of the arc plate to be inspected. During the inspection process, the inspection reference edge is pressed against the inner side of the arc plate to check the gap between the template reference edge and the inner side of the arc plate. When the gap is ≤1mm, it can be determined that the arc pressing size at that location meets the requirements. When the gap is greater than 1mm, it can be determined to be unqualified. During the inspection process, the template position is moved and the arc size of any position of the arc plate is checked multiple times. If it does not meet the requirements, re-pressing is performed. Generally, each position is pressed at least twice.

[0078] In some embodiments, when the curved plate is pressed, a reverse deformation amount is preset.

[0079] It can be understood that the amount of reverse deformation is set according to the chord length of the arc plate + 1mm~2mm, and the production process is adjusted in time according to the actual measurement situation.

[0080] It can be understood that after the arc plate is press-formed, the plate rib assembly and welding operations will continue. At the same time, flame correction is required to reduce the influence of welding deformation on the dimensional accuracy of the arc plate unit. Therefore, when the arc plate is pressed, it is necessary to preset the reverse deformation amount according to the arc radius of the pressed arc plate and the thickness of the plate. Since the plate ribs are evenly arranged on the inner side of the arc plate, the arc plate will tend to retract due to the heat on the inner side during welding, that is, the arc opening will shrink. Therefore, during the arc plate pressing process, the arc plate opening size is appropriately relaxed to compensate for the steel plate press rebound amount and welding shrinkage amount. Here, the reverse deformation amount should be remeasured and tracked during the production process and adjusted when necessary.

[0081] It can also be understood that during the arc-shaped plate pressing process, the arc-pressing and pushing operation of the arc-shaped plate is completed by the CNC front pushing shaft and CNC rear stop frame of the press, realizing the forward pushing and backward feeding (CNC) operation, ensuring that each line is accurate, ensuring that the inner and outer arcs of the arc-shaped plate are smooth, and using a non-indentation lower die to press to ensure that there is no obvious indentation on the outer arc.

[0082] In said S4: See Figure 5 In some embodiments, the plate skin line on one side or both sides of the plate rib is extended into the curved plate to form a plate rib position line.

[0083] It can be understood that rib position lines are drawn along the length direction of the arc-shaped plate, and each rib position line is connected to the plate skin lines on one side or both sides of the corresponding rib.

[0084] Furthermore, the plate skin of the plate rib is close to the plate rib position line, and the plate thickness surface of the plate rib is close to the inner side surface of the curved plate.

[0085] It can be understood that the plate skin is the thick surface of the plate rib.

[0086] Furthermore, after welding, a positioning assembly template is used to check the assembly effect of the plate ribs.

[0087] It can be understood that spot welding is used for welding, and the positions of plate rib ports and connecting plate parts are avoided during spot welding, because patch welding is required later.

[0088] Furthermore, the positioning assembly template includes a first side and a second side arranged opposite to each other, the first side is provided with a first groove that matches the cross-section of the plate rib, the opening of the first groove is located on the first side, and the first groove extends along one side toward the second side. The number of first grooves is the same as the number of plate ribs, one side of the first groove is a radial inspection edge of the plate rib, the first side is an inner arc reference edge, and the inner arc reference edge matches the inner curved surface of the arc plate; at least one oblong hand hole is provided on the side close to the second side, and a weight reduction hole is also provided on the positioning assembly template between the first grooves.

[0089] It can be understood that the weight-reducing holes can be of regular shape or irregular shape.

[0090] Furthermore, the first groove of the positioning assembly template is matched with the corresponding plate rib, and the inner arc reference edge is matched with the inner curved surface of the arc plate. Then, multiple plate rib radial inspection edges are simultaneously pressed against the plate skin of the plate rib to check the degree of fit between each plate rib surface and the plate rib radial inspection edge. If it is not perfectly fitted, adjust it to be perfectly fitted and then perform spot welding to fix it. After the plate rib is spot welded, the plate rib assembly effect of the arc plate along the length direction is checked by moving the positioning assembly template. The focus should be on controlling the plate rib root position, the plate rib angle and the plate rib free end spacing. The inspection process must always ensure that the inner arc reference edge and the plate rib radial inspection edge are perfectly fitted to complete the plate rib welding operation.

[0091] It can be understood that the plate rib surface is the surface on both sides of the plate rib width direction.

[0092] It can be understood that the focus should be on controlling the root position of the plate rib, that is, the outer skin line on both sides of the plate rib is accurately aligned with the plate rib position line, where the root position of the plate rib is the position where the outer skin line of the plate rib contacts the inner arc surface of the arc plate, and welding is welding on both sides of the plate rib thickness surface.

[0093] It can also be understood that the rib angle and the distance between the free ends of the ribs are formed because the ribs are welded to the inner side of the curved panel and the ribs are arranged centripetally, so a natural angle is formed between the ribs, namely the rib angle. At the free end of the ribs, that is, the width side that is not welded, there will be a size between the ribs, namely the distance between the free ends of the ribs.

[0094] It can be understood that the centripetal (center of the arc plate) arrangement of the plate ribs can be achieved with the help of the positioning assembly template auxiliary control.

[0095] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0096] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

Claims

1. A curved plate unit rib positioning assembly template, characterized in that: Applied to a curved plate, a plurality of plate ribs are sequentially arranged along the inner length direction of the curved plate; The positioning assembly template includes a first side and a second side that are arranged opposite to each other, the first side is provided with a first groove that matches the cross section of the plate rib, the opening of the first groove is located on the first side, the first groove extends along a side toward the second side, and the number of the first grooves is the same as the number of the plate ribs; One side of the first groove is a plate rib radial inspection edge, and the inclination of each plate rib radial inspection edge is different. The other side of the first groove is inclined away from the side corresponding to the plate rib radial inspection edge.

2. The arc-shaped plate unit rib positioning assembly template according to claim 1, characterized in that: The radial inspection edge of the plate rib is inclined toward the side where the corresponding plate rib is located so as to fit with the corresponding plate rib. The first edge is the inner arc reference edge and is arc-shaped. The inner arc reference edge coincides with the inner curved surface of the arc plate. At least one oblong hand hole is provided on the side close to the second edge, and a weight-reducing hole is also provided on the positioning assembly template between the first grooves.

3. The arc-shaped plate unit rib positioning assembly template according to claim 2, characterized in that: The distance between the hand hole and the second side is 45mm~55mm.

4. The arc-shaped plate unit rib positioning assembly template according to claim 1, characterized in that: An alignment notch is provided in the middle of the first side, and the alignment notch is a right-angled triangle structure.

5. The arc-shaped plate unit rib positioning and assembly template according to claim 1, characterized in that: The thickness of the positioning assembly template is 3mm~4mm.

6. The arc-shaped plate unit rib positioning and assembly template according to claim 4, characterized in that: The arc-shaped plate comprises: a plate member, which is arc-shaped and has an inner side surface; The plate ribs are sequentially arranged on the inner side surface of the plate along the length direction of the plate.

7. The arc-shaped plate unit rib positioning assembly template according to claim 6, characterized in that: A longitudinal baseline is drawn on the plate, and the position of the alignment notch matches the position of the longitudinal baseline.

8. A method for using a curved plate unit rib positioning assembly template, characterized in that: The steps include: Positioning and assembling templates to assist in detecting the arc accuracy of the inner side of the curved plate; Plate rib assembly; Insert the positioning assembly template into the curved plate in a manner such that the plate ribs and the first grooves correspond to each other; Check the fit between the plate rib surface and the positioning assembly template one by one; Position the positioning assembly template and re-measure the arc surface curvature, plate rib positioning accuracy and plate rib radial accuracy within the entire length of the arc plate until all are qualified.

9. The method for using the arc-shaped plate unit rib positioning and assembly template according to claim 8, characterized in that: Check the horizontal baseline, vertical baseline and rib position line of the arc-formed curved plate; and / or Assemble the plate ribs by spot welding according to the plate rib position lines; and / or Insert the positioning assembly template into the curved plate in a manner such that the plate ribs and the first grooves correspond to each other, and align the corner points of the alignment notches with the longitudinal baseline of the curved plate; and / or Check the fit of the rib surface to the radial inspection edge of the rib of the positioning assembly template for each rib; and / or Align the corner point of the groove with any position of the longitudinal baseline of the arc plate.

10. The method for using the arc-shaped plate unit rib positioning and assembly template according to claim 8, characterized in that: The method of using a positioning assembly template to assist in detecting the arc forming accuracy of the inner side of the curved plate includes: aligning the alignment notch of the positioning assembly template with the longitudinal baseline at any position in the curved plate, ensuring that the curved plate is perpendicular to the positioning assembly template, and using a feeler gauge to check the fit between the first side of the positioning assembly template and the inner side of the curved plate. When the gap is ≤1mm, the curved plate is judged to be qualified.

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