Rapid circle forming method for spherical segments of multiple jointed boards

Abstract

The invention provides a rapid circle forming method for multi-jointed-board spherical segments, and the method comprises the steps: firstly, measuring the edge of a processed jointed board through a total station, and obtaining a coordinate deviation value of each measurement point relative to a theoretical design model; then selecting a jointed board as a reference board, selecting a jointed board which is most matched with the reference board as an adjacent board according to the tolerance requirement of circle combination and closure, and calculating the value range of the coordinate deviation value of each measurement point of the adjacent board by utilizing the known coordinate deviation value of each measurement point of the reference board in the process; and adjacent plates are selected according to the value range, so that the edges of the two adjacent jointed plates are complementary as much as possible, and accurate splicing is achieved. According to the rapid circle assembling method, rapid circle assembling of the spherical segmented single bent plate is achieved, the problem of traditional repeated trial assembly work is solved, the optimal assembling scheme is found through digital virtual assembling, and one-time assembling of real objects is achieved, so that the construction period is shortened, the personnel investment is reduced, and the production efficiency and the product precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a method for quickly assembling a circle of spherical segments of multiple panels. Background Art

[0002] The head of a liquefied gas carrier is a spherical head or a spherical bulkhead segment. The conventional production method is to trim the qualified plates and leave one or two pieces for on-site matching, and then assemble them. The panels are connected one by one in sequence, and then the last piece is embedded in it. The deviation value is obtained through on-site matching, and then it is taken down for machining to eliminate the deviation, and finally assembled into a circle.

[0003] The traditional assembly method is to use a crane and personnel to match the curved plates on site. During the matching process, the upper and lower gaps will be inconsistent due to non-standard parts processing, and multiple re-matching is required to finally obtain the best matching result. This method has a long assembly cycle and low efficiency. It is easy to force assembly due to unsatisfactory precision, resulting in deformation after segment welding. Therefore, a new assembly method is urgently needed to achieve fast and efficient assembly. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a method for quickly assembling a circle of spherical segments of multiple puzzle panels, comprising the following steps:

[0005] S1, feature point data collection; according to the linear deviation of all the n-pieces of the group circular part plates, the plate with the smallest linear deviation is selected as the adjustment plate, and the remaining part plates are machined to form n-1 puzzle plates; the puzzle plate is a fan-shaped curved plate, including an upper edge arc, a lower edge arc, and a left edge and a right edge that are symmetrical on both sides, the length of the lower edge arc is greater than the length of the upper edge arc, and the center of the puzzle plate bulges outward relative to the edge, so that multiple puzzle plates can be assembled into a hemispherical shape;

[0006] After a single panel is processed, the left and right edges are measured using a total station. No less than three measuring points are selected for measurement on both the left and right edges, and the measuring points on the left and right edges are symmetrical to each other. The coordinate deviation values ​​S1 (X, Y, Z) of each measuring point relative to the theoretical design model are obtained by measuring the measuring points; wherein the coordinate direction of X is the height direction extending up and down along the panel line type, the coordinate direction of Y is the width direction extending left and right along the panel line type, and the coordinate direction of Z is the thickness direction perpendicular to the panel surface;

[0007] S2, select a panel as the reference panel K1, and select the panel that is most complementary to K1 as the adjacent panel according to the coordinate deviation value of the panel, so that the gap between the two panels meets the assembly requirements;

[0008] S3. According to the selected adjacent plates, n-1 panels are spliced ​​and welded in turn to form a hemispherical shape with a reserved closing opening, and the closing opening is used to install the adjustment plate. The horizontal reference lines of each panel are located in the same horizontal plane.

[0009] Optionally, in step S1, a right-angle groove measuring tool is used to realize the coordinate measurement of the measuring point, and the right-angle groove measuring tool includes a first right-angle side and a second right-angle side that are perpendicular to each other, and a reflective target sheet is pasted at the intersection of the first right-angle side and the second right-angle side; during measurement, the first right-angle side is close to the surface of the puzzle board, and the second right-angle side is perpendicular to the surface of the puzzle board and contacts with the groove of the left edge or the right edge. The position of the reflective target sheet is measured by a total station to obtain the coordinate values ​​of each measuring point.

[0010] Optionally, in step S2, the Y values ​​of the three measuring points on the right edge of the reference plate K1 are Y1, Y2, and Y3 along the top, middle, and bottom, respectively, and the Y values ​​of the three measuring points on the left edge are Y4, Y5, and Y6 along the top, middle, and bottom, respectively;

[0011] The adjacent plate matched with the right edge of the reference plate K1 is the panel Kx. The Y values ​​of the three measuring points on the left edge of the panel Kx are Y7, Y8, and Y9 along the top, middle, and bottom, respectively. The gap values ​​along the Y direction between K1 and Kx are Ya, Yb, and Yc along the top, middle, and bottom, respectively, where Ya = Y1 + Y7, Yb = Y2 + Y8, and Yc = Y3 + Y9.

[0012] The principle for selecting adjacent plates is Ymax(Ya, Yb, Yc)-Ymin(Ya, Yb, Yc)≤AB, and Ymax(Ya, Yb, Yc)≤A, Ymin(Ya, Yb, Yc)≥B; where A is the preset maximum value of the assembly gap deviation, and B is the minimum value;

[0013] When the left edge or right edge of the puzzle board protrudes outward relative to the theoretical design model, the Y value is negative; when the left edge or right edge of the puzzle board shrinks inward relative to the theoretical design model, the Y value is positive.

[0014] Optionally, the adjacent plate matched with the left edge of the reference plate K1 is the panel Ky, the Y values ​​of the three measuring points on the right edge of the panel Ky are Y10, Y11, and Y12 along the top, middle, and bottom, respectively, and the gap values ​​between K1 and Ky along the Y direction are Yd, Ye, and Yf ​​along the top, middle, and bottom, respectively, wherein Yd=Y4+Y10, Ye=Y5+Y11, and Yf=Y6+Y12;

[0015] The adjoining plate selection principle is Ymax (Yd, Ye, Yf)-Ymin (Yd, Ye, Yf) ≤ AB, and Ymax (Yd, Ye, Yf) ≤ A, Ymin (Yd, Ye, Yf) ≥ B.

[0016] Optionally, in step S2, the Z values ​​of the three measuring points on the right edge of the reference plate K1 are Z1, Z2, and Z3 along the top, middle, and bottom, respectively, and the Z values ​​of the three measuring points on the left edge are Z4, Z5, and Z6 along the top, middle, and bottom, respectively;

[0017] The adjacent plate that matches the right edge of the reference plate K1 is the panel Kx. The Z values ​​of the three measuring points on the left edge of the panel Kx are Z7, Z8, and Z9 along the top, middle, and bottom respectively. The gap values ​​along the Z direction between K1 and Kx are Za, Zb, and Zc along the top, middle, and bottom respectively, where Za=Z1-Z7, Zb=Z2-Z8, and Zc=Z3-Z9; the adjacent plate selection principle is Zmax(Za, Zb, Zc)-Zmin(Za, Zb, Zc)≤H, and |(Za, Zb, Zc)|≤H; H is the maximum thickness difference between two adjacent panels, H≥0.

[0018] Optionally, the adjacent plate that matches the left edge of the reference plate K1 is the puzzle plate Ky, and the Z values ​​of the three measuring points on the right edge of the puzzle plate Ky are Z10, Z11, and Z12 along the top, middle, and bottom, respectively. The gap values ​​along the Z direction between K1 and Ky are Zd, Ze, and Zf along the top, middle, and bottom, respectively, wherein Zd=Z4-Z10, Ze=Z5-Z11, and Zf=Z6-Z12; the adjacent plate selection principle is Zmax(Zd, Ze, Zf)-Zmin(Zd, Ze, Zf)≤H, and |(Zd, Ze, Zf)|≤H.

[0019] Optionally, the method further includes step S4, determining the cutting amount of the adjustment plate according to the deviation values ​​on both sides of the closing mouth position, and installing the adjustment plate into the closing mouth after cutting, which specifically includes:

[0020] For the n-1 panels that have been spliced, the distance between the seams of two adjacent panels is set to D1. The calculation formula of D1 is D1 = [(Ymax(Ya, Yb, Yc) + Ymin(Ya, Yb, Yc)) / 2 + (A+B) / 2] / 2, where (A+B) / 2 is the standard value deviation. The n-1 panels form a total of n-2 seams, and the value D is obtained by adding the data of the n-2 seams.

[0021] The Y values ​​of the three measuring points on the right edge of the puzzle board on the left side of the closing mouth are Y20, Y21, and Y22 along the top, middle, and bottom respectively. Then the Y-direction deviation values ​​of the left edge of the closing mouth are set to P1, P2, and P3 along the top, middle, and bottom respectively. P1=(A+B) / 2+D+Y20, P2=(A+B) / 2+D+Y21, and P3=(A+B) / 2+D+Y22. If P1, P2, and P3 are positive values, it means that the right edge of the puzzle board on the left side of the closing mouth protrudes outward, and the left edge of the adjustment plate will shrink inward by P1, P2, and P3 relative to the theoretical design model after cutting to achieve complementarity; if P1, P2, and P3 are negative values, it means that the right edge of the puzzle board on the left side of the closing mouth shrinks inward, and the left edge of the adjustment plate will protrude outward by P1, P2, and P3 relative to the theoretical design model after cutting.

[0022] Optionally, the Y values ​​of the three measuring points on the left edge of the puzzle panel on the right side of the closing mouth are Y23, Y24, and Y25 along the top, middle, and bottom, respectively, and the Y-direction deviation values ​​of the right edge of the closing mouth are set to P4, P5, and P6 along the top, middle, and bottom, respectively, P4=(A+B) / 2+D+Y23, P5=(A+B) / 2+D+Y24, P6=(A+B) / 2+D+Y25. If P4, P5, and P6 are positive values, it means that the left edge of the puzzle panel on the right side of the closing mouth protrudes outward, and the right edge of the adjustment plate shrinks inward relative to the theoretical design model after cutting; if P4, P5, and P6 are negative values, it means that the left edge of the puzzle panel on the right side of the closing mouth shrinks inward, and the right edge of the adjustment plate protrudes outward relative to the theoretical design model after cutting.

[0023] As described above, the present invention provides a method for rapidly assembling a spherical segment of multiple panels. The method first uses a total station to measure the edges of the processed panels to obtain the coordinate deviation values ​​of each measuring point relative to the theoretical design model; then a panel is selected as a reference plate, and the panel that best matches the reference plate is selected as an adjacent plate according to the tolerance requirements for closing the circle. In the process, the coordinate deviation values ​​of each measuring point of the known reference plate are used to calculate the value range of the coordinate deviation values ​​of each measuring point of the adjacent plate, and the adjacent plate is selected according to the value range, so that the edges of the two adjacent panels are as complementary as possible, and accurate assembly is achieved. The rapid assembly method of the present invention realizes the rapid assembly of a single curved plate of a spherical segment, eliminates the traditional repeated assembly and trial assembly of curved plates, solves the traditional repeated trial assembly work, finds the optimal assembly plan through digital virtual assembly, achieves one-time assembly of the physical object, and eliminates the physical repeated matching process, thereby saving construction period and personnel input, and improving production efficiency and product accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is a schematic diagram of the process of measuring the edge of the panel in the first embodiment of the present invention.

[0025] Figure 2 Shown is a schematic diagram of the use of the right-angle groove measuring tool in Example 1 of the present invention.

[0026] Figure 3 Shown is a schematic diagram of selecting the Y value of the adjacent plate in the first embodiment of the present invention.

[0027] Figure 4 Shown is a schematic diagram of selecting the Z value of adjacent plates in the first embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram showing the margin adjustment of the adjustment plate in the first embodiment of the present invention.

[0029] Figure 6 Shown is a schematic diagram of the assembled spherical segments in the first embodiment of the present invention.

[0030] Component number description

[0031] 1—measuring point; 2—total station; 3—reflective target; 4—right-angle groove measuring tool; 5—excess line point; 6—horizontal reference line; 10—jigsaw plate; 20—adjustment plate. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0033] For example, when describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0034] For ease of description, spatial relational terms such as "under", "below", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one element or feature shown in the drawings to other elements or features. It will be understood that these spatial relational terms are intended to include other directions of the device in use or operation in addition to the directions depicted in the drawings. In addition, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or there can be one or more intervening layers. As used herein, "between..." means including the end point values.

[0035] In the context of the present application, a structure in which a first feature is described as being "above" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0036] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, and therefore the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0037] The present invention mainly provides a method for quickly assembling a spherical circle of multiple panels by collecting characteristic data after a single processing panel is completed and analyzing the data fitting to obtain the optimal assembly sequence.

[0038] Embodiment 1

[0039] like Figures 1 to 6 As shown, this embodiment provides a method for quickly assembling a circle of spherical segments of multiple puzzle panels, comprising the following steps:

[0040] S1. Feature point data collection

[0041] S1-1. According to the linear deviation of all the n-pieces of the circular component plates, the plate with the smallest linear deviation is selected as the adjustment plate 20 without machining, and the remaining component plates are machined to form n-1 pieces of jigsaw puzzle 10; the jigsaw puzzle 10 is a fan-shaped curved plate, including an upper edge arc, a lower edge arc, and a left edge and a right edge that are symmetrical on both sides, and the length of the lower edge arc is greater than the length of the upper edge arc. The center of the jigsaw puzzle bulges outward relative to the edge, so that multiple jigsaw puzzles can be assembled into a hemispherical shape.

[0042] S1-2. After a single panel is processed, use total station 2 to measure the left and right edges. Figure 1 , Figure 2 As shown, no less than 3 measuring points are selected for the left edge and the right edge for measurement, and the measuring points of the left edge and the right edge are symmetrical to each other. The coordinate deviation values ​​of each measuring point relative to the theoretical design model are obtained by measuring the measuring points. Since there are inevitably processing errors in the processing process, it is necessary to measure the error value first, and then select the two panels with the smallest gap value as adjacent panels according to the error value. For example, when the right edge of a panel protrudes outward relative to the theoretical design model, another panel whose left edge shrinks inward relative to the theoretical design model is selected as the right panel of the panel. The two compensate each other to achieve the best match, so that there will be no large gaps and no large overlaps.

[0043] During the measurement process, a right-angle groove measuring tool is required to realize the coordinate measurement of the measuring point;

[0044] The right-angle groove measuring tool 4 includes a first right-angled side and a second right-angled side that are perpendicular to each other, and a reflective target sheet 3 is pasted at the intersection of the first right-angled side and the second right-angled side. During measurement, the first right-angled side is close to the surface of the puzzle board, and the second right-angled side is perpendicular to the puzzle board surface and contacts the groove of the left edge or the right edge. The position of the reflective target sheet is measured by the total station, and the position of the excess line point 5 is measured to obtain the coordinate value of each measuring point. The excess line point 5 is the edge position before the groove is formed. Then, the actual coordinate value of the measuring point in the puzzle board is subtracted from the theoretical coordinate value of the measuring point in the theoretical design model to obtain the coordinate deviation value S1 (X, Y, Z) of each measuring point. Among them, the coordinate direction of X is the height direction extending up and down along the puzzle board line type, the coordinate direction of Y is the width direction extending left and right along the puzzle board line type, and the coordinate direction of Z is the thickness direction perpendicular to the puzzle board surface. The X, Y, and Z directions are all set along the puzzle board line type, which is approximately a three-dimensional coordinate system, but the three coordinate values ​​are not standard mutually perpendicular.

[0045] When comparing the panel with the theoretical design model, it is necessary to ensure that the panel fits the theoretical design model as closely as possible so that the coordinate deviation value S1 (X, Y, Z) of each measuring point is as small as possible.

[0046] S2. Data fitting analysis: select a panel as the reference panel K1, and select the panel that best matches K1 as the adjacent panel according to the tolerance requirements of the group circle. In the process, the coordinate deviation value S1 of each measuring point of the known reference panel K1 is used to calculate the value range of the coordinate deviation value S1 of each measuring point of the adjacent panel, and the adjacent panel is selected according to the value range. The specific selection principle of the adjacent panel is:

[0047] S2-1, such as Figure 3 As shown, the range of the Y value of the adjacent plate is based on the following principles: first, a piece of panel is selected as the reference plate K1, and the Y values ​​of the three measuring points on the right edge of the reference plate K1 are Y1, Y2, and Y3 along the top, middle, and bottom, respectively, and the Y values ​​of the three measuring points on the left edge are Y4, Y5, and Y6 along the top, middle, and bottom, respectively.

[0048] The adjacent plate that matches the right edge of the reference plate K1 is the puzzle plate Kx. The Y values ​​of the three measuring points on the left edge of the puzzle plate Kx are Y7, Y8, and Y9 along the top, middle, and bottom respectively. The gap values ​​along the Y direction between K1 and Kx are Ya, Yb, and Yc along the top, middle, and bottom respectively, where Ya=Y1+Y7, Yb=Y2+Y8, and Yc=Y3+Y9.

[0049] The principle for selecting the butt joint plate is Ymax(Ya, Yb, Yc)-Ymin(Ya, Yb, Yc)≤AB, and Ymax(Ya, Yb, Yc)≤A, Ymin(Ya, Yb, Yc)≥B. Among them, the maximum value of the assembly gap deviation is A, and the minimum value is B. In other words, A and B are the maximum deviation values ​​allowed between the two preset panels. When selecting Kx, it is necessary to meet the basic requirement that Ya, Yb, and Yc are within the range of A to B, and at the same time, the difference between Ya, Yb, and Yc should be minimized as much as possible to minimize the butt joint deviation.

[0050] When the left or right edge of the panel protrudes outward relative to the theoretical design model, the Y value is negative; when the left or right edge of the panel shrinks inward relative to the theoretical design model, the Y value is positive;

[0051] Similarly, the adjacent plate that matches the left edge of the reference plate K1 is the puzzle plate Ky. The Y values ​​of the three measuring points on the right edge of the puzzle plate Ky are Y10, Y11, and Y12 along the top, middle, and bottom respectively. The gap values ​​along the Y direction between K1 and Ky are Yd, Ye, and Yf ​​along the top, middle, and bottom respectively, where Yd=Y4+Y10, Ye=Y5+Y11, and Yf=Y6+Y12.

[0052] The principle for selecting the butt joint plate is Ymax(Yd, Ye, Yf)-Ymin(Yd, Ye, Yf)≤AB, and Ymax(Yd, Ye, Yf)≤A, Ymin(Yd, Ye, Yf)≥B. Therefore, when selecting Ky, the butt joint deviation can be minimized.

[0053] S2-2, such as Figure 4 As shown, the range of the adjacent plate Z value is based on the following principles: the Z values ​​of the three measuring points on the right edge of the reference plate K1 are Z1, Z2, and Z3 along the top, middle, and bottom, respectively, and the Z values ​​of the three measuring points on the left edge are Z4, Z5, and Z6 along the top, middle, and bottom, respectively.

[0054] The adjacent plate that matches the right edge of the reference plate K1 is the puzzle plate Kx. The Z values ​​of the three measuring points on the left edge of the puzzle plate Kx are Z7, Z8, and Z9 along the top, middle, and bottom respectively. The gap values ​​along the Z direction between K1 and Kx are Za, Zb, and Zc along the top, middle, and bottom respectively, where Za=Z1-Z7, Zb=Z2-Z8, and Zc=Z3-Z9.

[0055] The principle of selecting the butt joint plate is Zmax(Za, Zb, Zc)-Zmin(Za, Zb, Zc)≤H, and |(Za, Zb, Zc)|≤H. H is the maximum thickness difference between two adjacent panels, and the minimum H value is 0. This ensures that the deviation of K1 and Kx along the Z direction is as small as possible, thereby ensuring the adaptability.

[0056] Similarly, the adjacent plate that matches the left edge of the reference plate K1 is the puzzle plate Ky. The Z values ​​of the three measuring points on the right edge of the puzzle plate Ky are Z10, Z11, and Z12 along the top, middle, and bottom respectively. The gap values ​​along the Z direction between K1 and Ky are Zd, Ze, and Zf along the top, middle, and bottom respectively, where Zd=Z4-Z10, Ze=Z5-Z11, and Zf=Z6-Z12.

[0057] The principle of selecting the butt joint plate is Zmax(Zd, Ze, Zf)-Zmin(Zd, Ze, Zf)≤H, and |(Zd, Ze, Zf)|≤H. H is the maximum thickness difference between two adjacent panels, and the minimum H value is 0. This ensures that the deviation between K1 and Ky along the Z direction is as small as possible, thereby ensuring the fit.

[0058] S3. Perform physical splicing and welding on n-1 panels in turn according to the selected adjacent panels to form a closing opening reserved for assembling the adjustment panels, and the horizontal reference lines 6 of each panel are located in the same horizontal plane.

[0059] S4, determining the cutting amount of the adjustment plate 20 according to the deviation values ​​on both sides of the closing mouth position, and installing the adjustment plate into the closing mouth after cutting.

[0060] For the n-1 panels that have been spliced, the distance between the seams of two adjacent panels is set to D1. The calculation formula of D1 is D1 = [(Ymax(Ya, Yb, Yc) + Ymin(Ya, Yb, Yc)) / 2 + (A+B) / 2] / 2, where (A+B) / 2 is the standard value deviation. The n-1 panels form a total of n-2 seams, and the value D is obtained by adding the data of the n-2 seams.

[0061] like Figure 5 , Figure 6 As shown in the figure, the Y values ​​of the three measuring points on the right edge of the panel on the left side of the closing mouth are Y20, Y21, and Y22 along the top, middle, and bottom, respectively. The Y-direction deviation values ​​of the left edge of the closing mouth are set as P1, P2, and P3 along the top, middle, and bottom, respectively. P1=(A+B) / 2+D+Y20, P2=(A+B) / 2+D+Y21, and P3=(A+B) / 2+D+Y22. If P1, P2, and P3 are positive values, it means that the right edge of the panel on the left side of the closing mouth protrudes outward, and the left edge of the adjustment plate should be adjusted accordingly. Shrink P1, P2, P3 inwards, that is, the left edge of the adjustment plate shrinks P1, P2, P3 inwards relative to the theoretical design model, and the cutting amount is more than the theoretical design model to achieve complementarity; if P1, P2, P3 are negative values, it means that the right edge of the puzzle board on the left side of the closing mouth shrinks inwards, then the left edge of the adjustment plate expands P1, P2, P3 outwards accordingly, that is, the left edge of the adjustment plate should protrude P1, P2, P3 outwards relative to the theoretical design model, and the cutting amount is less than the theoretical design model to achieve complementarity.

[0062] Similarly, calculate the Y-direction deviation value of the right edge of the closing mouth, and adjust the right edge cutting of the plate to achieve accurate assembly.

[0063] The Y values ​​of the three measuring points on the left edge of the panel on the right side of the closing mouth are Y23, Y24, and Y25 along the top, middle, and bottom, respectively. The Y-direction deviation values ​​of the right edge of the closing mouth are set to P4, P5, and P6 along the top, middle, and bottom, respectively. P4=(A+B) / 2+D+Y23, P5=(A+B) / 2+D+Y24, and P6=(A+B) / 2+D+Y25. If P4, P5, and P6 are positive values, it means that the left edge of the panel on the right side of the closing mouth protrudes outward, and the right edge of the adjustment plate should be adjusted inward accordingly. Shrink P4, P5, and P6, that is, the right edge of the adjustment plate shrinks P4, P5, and P6 inward relative to the theoretical design model, and the cutting amount is more than the theoretical design model to achieve complementarity; if P4, P5, and P6 are negative values, it means that the left edge of the puzzle board on the right side of the closing mouth shrinks inward, then the right edge of the adjustment plate expands P4, P5, and P6 outward accordingly, that is, the right edge of the adjustment plate should protrude P1, P2, and P3 outward relative to the theoretical design model, and the cutting amount is less than the theoretical design model to achieve complementarity.

[0064] In summary, the present invention provides a method for rapidly assembling a spherical segment of multiple panels. The method first uses a total station to measure the edges of the processed panels to obtain the coordinate deviation values ​​of each measuring point relative to the theoretical design model; then a panel is selected as a reference plate, and the panel that best matches the reference plate is selected as an adjacent plate according to the tolerance requirements for closing the circle. During the process, the known coordinate deviation values ​​of each measuring point of the reference plate are used to calculate the range of coordinate deviation values ​​of each measuring point of the adjacent plate, and the adjacent plate is selected according to the range of values, so that the edges of the two adjacent panels are as complementary as possible, and accurate assembly is achieved. The rapid assembly method of the present invention realizes the rapid assembly of a single curved plate of a spherical segment, eliminates the traditional repeated assembly and trial assembly of curved plates, solves the traditional repeated trial assembly work, finds the optimal assembly plan through digital virtual assembly, achieves one-time assembly of the physical object, and eliminates the physical repeated matching process, thereby saving construction period and personnel input, and improving production efficiency and product accuracy.

[0065] 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 quickly assembling a circle of spherical segments of multiple panels, characterized in that: The steps include: S1, feature point data collection; according to the linear deviation of all the n-pieces of the group circular part plates, the plate with the smallest linear deviation is selected as the adjustment plate, and the remaining part plates are machined to form n-1 puzzle plates; the puzzle plate is a fan-shaped curved plate, including an upper edge arc, a lower edge arc, and a left edge and a right edge that are symmetrical on both sides, the length of the lower edge arc is greater than the length of the upper edge arc, and the center of the puzzle plate bulges outward relative to the edge, so that multiple puzzle plates can be assembled into a hemispherical shape; After a single panel is processed, the left and right edges are measured using a total station. No less than three measuring points are selected for measurement on both the left and right edges, and the measuring points on the left and right edges are symmetrical to each other. The coordinate deviation values ​​S1 (X, Y, Z) of each measuring point relative to the theoretical design model are obtained by measuring the measuring points; wherein the coordinate direction of X is the height direction extending up and down along the panel line type, the coordinate direction of Y is the width direction extending left and right along the panel line type, and the coordinate direction of Z is the thickness direction perpendicular to the panel surface; S2, select a panel as the reference panel K1, and select the panel that is most complementary to K1 as the adjacent panel according to the coordinate deviation value of the panel, so that the gap between the two panels meets the assembly requirements; S3. According to the selected adjacent plates, n-1 panels are spliced ​​and welded in turn to form a hemispherical shape with a reserved closing opening, and the closing opening is used to install the adjustment plate. The horizontal reference lines of each panel are located in the same horizontal plane.

2. The method for rapidly assembling a circle of spherical segments of multiple panels according to claim 1, characterized in that: In step S1, a right-angle groove measuring tool is used to realize the coordinate measurement of the measuring point. The right-angle groove measuring tool includes a first right-angle side and a second right-angle side that are perpendicular to each other, and a reflective target sheet is pasted at the intersection of the first right-angle side and the second right-angle side. During measurement, the first right-angle side is close to the surface of the puzzle board, and the second right-angle side is perpendicular to the surface of the puzzle board and contacts with the groove of the left edge or the right edge. The position of the reflective target sheet is measured by a total station to obtain the coordinate values ​​of each measuring point.

3. The method for rapidly assembling a spherical segment of multiple panels according to claim 1, characterized in that: In step S2, the Y values ​​of the three measuring points on the right edge of the reference plate K1 are Y1, Y2, and Y3 along the top, middle, and bottom, respectively, and the Y values ​​of the three measuring points on the left edge are Y4, Y5, and Y6 along the top, middle, and bottom, respectively; The adjacent plate that matches the right edge of the reference plate K1 is the panel Kx. The Y values ​​of the three measuring points on the left edge of the panel Kx are Y7, Y8, and Y9 along the top, middle, and bottom, respectively. The gap values ​​along the Y direction between K1 and Kx are Ya, Yb, and Y7 along the top, middle, and bottom, respectively. Yc, where Ya=Y1+Y7, Yb=Y2+Y8, Yc=Y3+Y9; The principle for selecting adjacent plates is Ymax(Ya, Yb, Yc)-Ymin(Ya, Yb, Yc)≤AB, and Ymax(Ya, Yb, Yc)≤A, Ymin(Ya, Yb, Yc)≥B; where A is the preset maximum value of the assembly gap deviation, and B is the minimum value; When the left edge or right edge of the puzzle board protrudes outward relative to the theoretical design model, the Y value is negative; when the left edge or right edge of the puzzle board shrinks inward relative to the theoretical design model, the Y value is positive.

4. The method for rapidly assembling a circle of spherical segments of multiple panels according to claim 3, characterized in that: The adjacent plate that matches the left edge of the reference plate K1 is the panel Ky. The Y values ​​of the three measuring points on the right edge of the panel Ky are Y10, Y11, and Y12 along the top, middle, and bottom. The gap values ​​between K1 and Ky along the Y direction are Yd, Ye, and Yf ​​along the top, middle, and bottom, respectively, where Yd = Y4 + Y10, Ye=Y5+Y11、Yf=Y6+Y12; The adjoining plate selection principle is Ymax (Yd, Ye, Yf)-Ymin (Yd, Ye, Yf) ≤ AB, and Ymax (Yd, Ye, Yf) ≤ A, Ymin (Yd, Ye, Yf) ≥ B.

5. The method for rapidly assembling a circle of spherical segments of multiple panels according to claim 4, characterized in that: In step S2, the Z values ​​of the three measuring points on the right edge of the reference plate K1 are Z1, Z2, and Z3 along the top, middle, and bottom, respectively, and the Z values ​​of the three measuring points on the left edge are Z4, Z5, and Z6 along the top, middle, and bottom, respectively; The adjacent plate that matches the right edge of the reference plate K1 is the panel Kx. The Z values ​​of the three measuring points on the left edge of the panel Kx are Z7, Z8, and Z9 along the top, middle, and bottom respectively. The gap values ​​along the Z direction between K1 and Kx are Za, Zb, and Zc along the top, middle, and bottom respectively, where Za=Z1-Z7, Zb=Z2-Z8, and Zc=Z3-Z9; the adjacent plate selection principle is Zmax(Za, Zb, Zc)-Zmin(Za, Zb, Zc)≤H, and |(Za, Zb, Zc)|≤H; H is the maximum thickness difference between two adjacent panels, H≥0.

6. The method for rapidly assembling a circle of spherical segments of multiple panels according to claim 5, characterized in that: The adjacent plate that matches the left edge of the reference plate K1 is the puzzle plate Ky. The Z values ​​of the three measuring points on the right edge of the puzzle plate Ky are Z10, Z11, and Z12 along the top, middle, and bottom respectively. The gap values ​​along the Z direction between K1 and Ky are Zd, Ze, and Zf along the top, middle, and bottom respectively, among which Zd=Z4-Z10, Ze=Z5-Z11, and Zf=Z6-Z12; the principle for selecting the adjacent plate is Zmax(Zd, Ze, Zf)-Zmin(Zd, Ze, Zf)≤H, and |(Zd, Ze, Zf)|≤H.

7. The method for rapidly assembling a spherical segment of multiple panels according to claim 6, characterized in that: The method further includes step S4, determining the cutting amount of the adjustment plate according to the deviation values ​​on both sides of the closing mouth position, and installing the adjustment plate into the closing mouth after cutting, which specifically includes: For the n-1 panels that have been spliced, the distance between the seams of two adjacent panels is set to D1. The calculation formula of D1 is D1 = [(Ymax(Ya, Yb, Yc) + Ymin(Ya, Yb, Yc)) / 2 + (A+B) / 2] / 2, where (A+B) / 2 is the standard value deviation. The n-1 panels form a total of n-2 seams, and the value D is obtained by adding the data of the n-2 seams. The Y values ​​of the three measuring points on the right edge of the puzzle board on the left side of the closing mouth are Y20, Y21, and Y22 along the top, middle, and bottom respectively. Then the Y-direction deviation values ​​of the left edge of the closing mouth are set to P1, P2, and P3 along the top, middle, and bottom respectively. P1=(A+B) / 2+D+Y20, P2=(A+B) / 2+D+Y21, and P3=(A+B) / 2+D+Y22. If P1, P2, and P3 are positive values, it means that the right edge of the puzzle board on the left side of the closing mouth protrudes outward, and the left edge of the adjustment plate will shrink inward by P1, P2, and P3 relative to the theoretical design model after cutting to achieve complementarity; if P1, P2, and P3 are negative values, it means that the right edge of the puzzle board on the left side of the closing mouth shrinks inward, and the left edge of the adjustment plate will protrude outward by P1, P2, and P3 relative to the theoretical design model after cutting.

8. The method for rapidly assembling a circle of spherical segments of multiple panels according to claim 7, characterized in that: The Y values ​​of the three measuring points on the left edge of the puzzle board on the right side of the closing mouth are Y23, Y24, and Y25 along the top, middle, and bottom respectively. The Y-direction deviation values ​​of the right edge of the closing mouth are set to P4, P5, and P6 along the top, middle, and bottom respectively. P4=(A+B) / 2+D+Y23, P5=(A+B) / 2+D+Y24, and P6=(A+B) / 2+D+Y25. If P4, P5, and P6 are positive values, it means that the left edge of the puzzle board on the right side of the closing mouth protrudes outward, and the right edge of the adjustment plate will shrink inward relative to the theoretical design model after cutting by P4, P5, and P6; if P4, P5, and P6 are negative values, it means that the left edge of the puzzle board on the right side of the closing mouth shrinks inward, and the right edge of the adjustment plate will protrude outward relative to the theoretical design model after cutting by P1, P2, and P3.

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