A high-precision construction process for decorative molding of cylindrical arc surfaces

Abstract

This invention relates to the field of architectural decoration construction technology, and in particular to a high-precision construction process for decorative molding of curved surfaces on columns. The process includes: pre-treating the column base layer; obtaining the curvature parameters and central axis parameters of the curved template; dividing the construction area and determining the construction sequence based on the curvature parameters and central axis parameters; installing decorative surface units area by area according to the construction sequence and checking the splicing surface accuracy; continuing construction in the original sequence based on the splicing surface accuracy being within a preset allowable range; calculating the cumulative deviation of the splicing surface accuracy based on the deviation exceeding the preset allowable range and performing graded adjustments; and performing closed optimization based on the accuracy of the first and last splicing surfaces at the end of the construction phase. This invention solves the problem of existing construction processes relying on manual experience to divide areas and being unable to actively adjust the construction sequence, achieving a precise fit between the decorative surface and the base layer.

Description

Technical Field

[0001] This invention relates to the field of architectural decoration construction technology, and in particular to a high-precision column arc-shaped curved surface decoration forming construction process. Background Technology

[0002] With the increasing demands for interior space aesthetics in the architectural decoration industry, curved decorative structures such as arched columns, curved walls, and arched doorways are being used more and more widely in high-end office buildings, shopping malls, residences, and hotels. The construction quality of these curved decorative surfaces directly affects the overall visual effect of the space. Among them, the fitting accuracy between the decorative unit and the column base, the uniformity of the joints between adjacent decorative units, and the consistency of the curvature of the overall curved surface are key indicators for measuring construction quality.

[0003] Currently, the construction of curved surface decorations on arched columns mainly relies on manual experience. Construction workers mark positioning lines on the column base according to design drawings, and then install the curved decorative panels sequentially from a certain position based on experience. After installation, the joint accuracy is checked visually or with simple measuring tools. This method has the following problems: the selection of the construction starting point and direction lacks scientific basis; when the actual curvature of the column base deviates from the designed curvature, sequential installation along a fixed direction leads to a gradual accumulation of deviations, eventually resulting in large joint errors or situations where decorative units cannot be installed at the end area, requiring repeated dismantling and reinstallation. This results in low construction efficiency and high material waste.

[0004] Chinese Patent Publication No. CN117449620A discloses a curved decorative aluminum panel installation error adjustment device and construction method, including a concrete connection unit, a steel keel connection unit, and a control unit; by sequentially assembling the concrete connection unit, the steel keel, and the steel keel connection unit into a curved decorative aluminum panel frame, and by using sensors and telescopic rods installed in the concrete connection unit and the steel keel connection unit, the installation error between the curved decorative aluminum panel frame and the curved decorative aluminum panel is intelligently adjusted.

[0005] The existing technology still has the following problems: the division of construction areas and the determination of construction sequence still rely on the personal experience of construction personnel, and there is a lack of a quantitative construction sequence planning method based on the actual curvature parameters and central axis parameters of the column; most of the existing precision control measures are static planning or local node adjustment, and a closed-loop mechanism between dynamic detection of splicing surface precision and feedback adjustment of construction sequence has not been established during the construction process; the existing schemes do not systematically link the geometric characteristics of the column base with the optimization strategy of construction area division and construction sequence, and cannot provide differentiated construction schemes for columns with different curvature and central axis deviation characteristics, resulting in poor construction precision and overall visual quality of arc-shaped curved surface decoration. Summary of the Invention

[0006] To address this, the present invention provides a high-precision construction process for decorative molding of cylindrical arc surfaces, which overcomes the problems in the prior art where the construction of decorative molding of arc surfaces relies on manual experience to divide the construction area, the splicing accuracy detection is lagging, and the construction sequence cannot be actively adjusted during the construction process.

[0007] To achieve the above objectives, the present invention provides a high-precision construction process for decorative molding of cylindrical arc-shaped surfaces, comprising: The column base is pretreated, and the curvature parameters and central axis parameters of the arc template are obtained to divide the arc surface of the column into several construction areas; Based on the changes in central axis deviation and radius of curvature, several construction areas of the column are determined for construction. Based on the completion of the installation of a single finishing unit in the construction area, the cumulative deviation of the splicing surface accuracy between two adjacent construction areas is determined. The construction of the finishing unit in the current construction area is determined by comparing the cumulative deviation of the splicing surface accuracy with the preset threshold. In response to the substandard construction of the finishing unit in the current construction area, feedback adjustment is triggered based on the cumulative deviation of the splicing surface accuracy exceeding a preset threshold, so as to insert a transition adjustment unit or adjust the construction direction in two adjacent construction areas; The overall closure accuracy is determined based on the joint width deviation of the two connected construction areas and the height difference of the joint surfaces, so as to determine the trigger optimization mechanism based on the closure deviation.

[0008] Furthermore, the pretreatment process of the column base includes: cleaning and leveling the surface of the column base, and marking positioning reference lines on the surface of the column base. The positioning reference lines include a horizontal elevation line along the circumference of the column and a vertical centerline along the axial direction of the column.

[0009] Furthermore, the process of obtaining the curvature parameters and the central axis parameters includes: pre-assembling the arc-shaped template onto the surface of the column base layer, and measuring and extracting the curvature parameters and the central axis parameters; the curvature parameters include the radius of curvature, arc length, and central angle, and the central axis parameters include the coordinates of the center and the direction vector of the central axis.

[0010] Furthermore, the process of dividing the construction area includes: calculating the curvature parameter deviation; dividing the area using equal central angles based on the result that the curvature parameter deviation is less than or equal to a preset deviation threshold; and further dividing the construction area by increasing the density based on the result that the curvature parameter deviation is greater than the preset deviation threshold.

[0011] Furthermore, the encryption division method is as follows: calculate the rate of change of curvature radius, and based on the construction area where the rate of change of curvature radius is greater than a preset rate of change threshold, adjust the arc length of the construction area within the construction area to a preset proportion of the reference arc length.

[0012] Furthermore, the construction of several construction areas of the column includes: calculating the central axis deviation, taking the construction area corresponding to the direction with the largest central axis deviation as the construction starting point, taking the direction with the largest change in the radius of curvature as the construction advancement direction, and carrying out construction on each construction area in sequence.

[0013] Furthermore, during the construction process, after the installation of each construction area is completed, the cumulative deviation of the splicing surface accuracy is calculated; based on the result that the cumulative deviation of the splicing surface accuracy is less than or equal to a first preset threshold, the construction of subsequent construction areas continues in the original construction direction; based on the result that the cumulative deviation of the splicing surface accuracy is greater than the first preset threshold and less than or equal to a second preset threshold, a transition adjustment unit is inserted between the deviation area and the next construction area for compensation; based on the result that the cumulative deviation of the splicing surface accuracy is greater than the second preset threshold, the construction direction of the construction area that has not yet been constructed is changed or construction is restarted from the opposite side.

[0014] Furthermore, when construction reaches the last construction area, the deviation in the width of the first and last splicing joints and the height difference between the first and last splicing surfaces of this construction area and the first construction area are detected. If the deviation in the width of the first and last splicing joints and the height difference between the first and last splicing surfaces are both within the preset allowable range, the overall closure accuracy is determined to be qualified. If the deviation in the width of the first and last splicing joints or the height difference between the first and last splicing surfaces exceeds the preset allowable range, an optimization mechanism is triggered to insert a transition adjustment unit between the last construction area and the first construction area for compensation, or to return to redetermine the construction direction or redefine the construction areas.

[0015] Furthermore, the feedback adjustment includes the following adjustment methods: changing the construction direction of the construction area that has not yet been constructed; inserting a transition adjustment unit between the deviation area and the next construction area; adjusting the thickness of the adhesive layer between the finishing unit and the column base in the construction area that has not yet been constructed; or restarting construction from the other side of the column base opposite to the current construction area.

[0016] Furthermore, after performing the feedback adjustment, construction continues in the subsequent construction areas, and the splicing surface accuracy is re-tested; based on the result that the re-tested splicing surface accuracy is within the preset allowable range, construction continues according to the adjusted construction sequence; based on the result that the re-tested splicing surface accuracy still exceeds the preset allowable range, the feedback adjustment is triggered again; after all the construction areas are completed, a comparison and optimization process is performed on the width deviation of the first and last splicing joints and the height difference of the first and last splicing surfaces until the overall closure accuracy is qualified.

[0017] Compared with the prior art, the beneficial effect of the present invention is that by obtaining the actual curvature parameters and central axis parameters of the column base, and determining whether to trigger the densification division based on the comparison result of the curvature parameter deviation and the preset deviation threshold, the present invention solves the problem of traditional construction relying on manual experience to arbitrarily determine the construction start point and direction, thereby improving the scientificity and rationality of the construction area division.

[0018] Furthermore, this invention calculates the cumulative deviation of the splicing surface accuracy and triggers different compensation and adjustment strategies based on its hierarchical comparison with the first and second preset thresholds. When the deviation is small, a transition adjustment unit is inserted for fine compensation. When the deviation is large, the construction direction is changed or the construction is restarted from the opposite side for fundamental adjustment. This solves the problem of the existing construction process adjustment strategy being singular and lacking a hierarchical response mechanism, thereby achieving precise intervention in construction deviations.

[0019] Furthermore, this invention calculates the closure deviation by detecting the joint accuracy of two connected construction areas at the end of construction. Based on the comparison result of the closure deviation and the preset closure deviation threshold, a closed-loop optimization mechanism is triggered, including insertion compensation or returning to redetermine the direction and re-divide. This extends the local accuracy control in the construction process to the overall circumference closure accuracy control, solving the problem that existing processes cannot systematically verify and optimize the final closure effect of the arc-shaped decorative surface, thereby achieving a precise fit between the decorative surface and the base layer.

[0020] Furthermore, this invention ensures the effectiveness of the adjustment measures by re-inspecting and comparing the cumulative deviation of the splicing surface accuracy after each adjustment, forming a closed-loop verification cycle and avoiding the accumulation of errors caused by inadequate single adjustments.

[0021] Furthermore, this invention provides a variety of flexible intervention methods for different degrees of precision deviation by changing the construction direction, inserting transition adjustment units, adjusting the adhesive layer thickness, or reconstructing from the opposite side. This solves the problem of the single intervention method and poor adaptability of existing processes, thereby improving the overall efficiency and quality stability of the construction of curved surface decorations.

[0022] Furthermore, this invention, by re-executing the construction area division and increasing the number of construction areas and decreasing the arc length of each area based on the result of the cumulative deviation of the splicing surface accuracy exceeding the preset number of times, achieves adaptive dynamic optimization of the construction area division scheme. This solves the problem that the traditional fixed division method cannot be adjusted according to the actual construction effect, thereby further improving the flexibility and adaptability of the construction scheme. Attached Figure Description

[0023] Figure 1 This is a flowchart of the high-precision cylindrical arc-shaped curved surface decoration construction process according to an embodiment of the present invention; Figure 2 This is a flowchart illustrating the process of obtaining curvature parameter deviation and central axis deviation in an embodiment of the present invention. Figure 3 This is a logic diagram for judging the accuracy of construction area division in an embodiment of the present invention; Figure 4 This is a flowchart illustrating the logic for splicing surface accuracy detection and feedback adjustment in an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0025] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0026] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0027] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Please see Figure 1 As shown, it is a flowchart of the high-precision cylindrical arc-shaped curved surface decoration construction process according to an embodiment of the present invention.

[0029] The high-precision cylindrical arc-shaped curved surface decoration forming construction process of this invention includes: Step S1: Pre-process the column base and obtain the curvature parameters and central axis parameters of the arc template to divide the arc surface of the column into several construction areas; Step S2: Based on the changes in the central axis deviation and radius of curvature, determine the construction areas of the column and carry out construction. Step S3: Based on the completion of the installation of the finishing unit of a single construction area, determine the splicing accuracy of two adjacent construction areas; Step S4: Determine whether the construction of the finishing unit in the current construction area is qualified based on the comparison between the cumulative deviation of the splicing surface accuracy and the preset threshold. Step S5: In response to the substandard construction of the finishing unit in the current construction area, feedback adjustment is triggered based on the cumulative deviation of the splicing surface accuracy exceeding a preset threshold, so as to insert a transition adjustment unit in two adjacent construction areas or adjust the construction direction. Step S6: Determine the overall closure accuracy based on the joint width deviation of the two connected construction areas and the height difference of the joint surfaces, and determine the trigger optimization mechanism based on the closure deviation.

[0030] In this embodiment of the invention, the pretreatment process of the column base layer includes: Clean the surface of the column base to remove surface dust, oil stains and loose layers, and level any uneven areas on the base surface to ensure that the flatness of the base surface meets the requirements for subsequent installation of the finishing unit.

[0031] After cleaning and leveling, positioning reference lines are marked on the surface of the column base. These reference lines include a horizontal elevation line along the circumference of the column and a vertical centerline along the axial direction of the column. The horizontal elevation line controls the vertical installation position of each finishing unit, while the vertical centerline controls the horizontal installation position of each finishing unit and provides a reference for subsequent construction area division.

[0032] Specifically, for column base layers with cracks or holes on the surface, the cracks and holes should be repaired and filled before leveling. For column base layers with high water absorption, an interface treatment agent should be applied after leveling to enhance the adhesion between the base layer and the subsequent bonding layer. The thickness and number of applications of the interface treatment agent are determined based on the base material and site environmental conditions, and are not specifically limited.

[0033] In this embodiment of the invention, the horizontal elevation lines are drawn at equal intervals along the circumference of the column, with the distance between two adjacent horizontal elevation lines being 300-600mm, preferably 400mm in this embodiment. At least two vertical central axes are drawn, located at the beginning and end of the column's arc surface, respectively, to allow for continuous verification of the installation position of the finishing unit during construction to ensure it remains within acceptable limits.

[0034] Specifically, the process of obtaining the curvature parameter and the central axis parameter includes: The curved template is pre-assembled onto the surface of the column base, ensuring that the inner arc surface of the template fits snugly against the column base surface. The curvature parameters and the central axis parameters are measured and extracted. The curvature parameters describe the bending characteristics of the curved surface of the column base and serve as a basis for determining the construction area. The central axis parameters determine the geometric center position and axial extension direction of the curved surface of the column base. The curvature parameters include the radius of curvature, arc length, and central angle. The central axis parameters include the coordinates of the center and the central axis direction vector.

[0035] Specifically, the radius of curvature is the actual bending radius of the cylindrical base arc surface, the arc length is the actual unfolded length of the cylindrical base arc surface along the circumference, and the central angle is the angle between the two ends of the cylindrical base arc surface and the lines connecting the center coordinates. The center coordinates are the projected coordinates of the geometric center of the circumference of the cylindrical base arc surface on the horizontal plane, and the central axis direction vector is the extension direction of the center coordinates along the axial direction of the cylinder.

[0036] In this embodiment of the invention, during the pre-assembly of the arc-shaped template, at least three trial assembly points are selected along the circumference of the column base, and the spacing between adjacent trial assembly areas is equal. The gap distribution is measured using a feeler gauge, with a measurement accuracy of not less than 0.1 mm. The specific values ​​of the above parameters can be adjusted according to actual construction conditions, and are not specifically limited.

[0037] Please see Figure 2 As shown, it is a flowchart of obtaining the curvature parameter deviation and the central axis deviation in an embodiment of the present invention.

[0038] Specifically, the process of dividing the construction area includes: Calculate the curvature parameter deviation; The curvature parameter deviation is compared with a preset deviation threshold. Based on the result that the curvature parameter deviation is less than or equal to the preset deviation threshold, it is determined that the current division accuracy meets the standard. The equal central angle division method is used to divide the cylindrical arc surface into several construction areas along the circumference.

[0039] Based on the result that the curvature parameter deviation is greater than the preset deviation threshold, it is determined that the current division accuracy is not up to standard, triggering the division strategy adjustment mechanism to densify the division of the construction area.

[0040] In this embodiment of the invention, the curvature parameter deviation is the percentage of the difference between the actual radius of curvature and the designed radius of curvature of the column base layer to the designed radius of curvature, and the calculation formula is as follows:

[0041] in, For curvature parameter deviation, The actual radius of curvature, To design the radius of curvature.

[0042] Please see Figure 3 As shown, it is a logic diagram for judging the accuracy of construction area division in an embodiment of the present invention.

[0043] Specifically, the methods of encryption partitioning include: Calculate the rate of change of the radius of curvature; Based on the construction area where the rate of change of the radius of curvature is greater than a preset rate of change threshold, the arc length of the construction area within the construction area is adjusted to a preset ratio of the reference arc length.

[0044] In implementation, the adjustment method for the arc length of the construction area is as follows: the arc length of each construction area within the segment under the original equal central angle division method is uniformly reduced to a preset proportion of the reference arc length. The reference arc length is the arc length of a single construction area in a gently curvature segment under the equal central angle division method. After adjustment, the number of construction areas within the segment increases accordingly to accommodate geometric features with large curvature variations.

[0045] The rate of change of the radius of curvature is the amount of change of the radius of curvature along the circumferential direction, expressed by the following formula:

[0046] in, The rate of change of the radius of curvature, The change in radius of curvature This represents the change in the corresponding central angle.

[0047] In this embodiment of the invention, the preset deviation threshold is 5%, the preset rate of change threshold is 0.02 mm / °, and the preset ratio is 60% of the reference arc length.

[0048] Specifically, the construction of several construction areas of the column includes: calculating the central axis deviation, taking the construction area corresponding to the direction with the largest central axis deviation as the construction starting point, taking the direction with the largest change in curvature radius as the construction advancement direction, and carrying out construction on each construction area in sequence.

[0049] Wherein, the central axis deviation is the Euclidean distance between the coordinates of the circle center and the coordinates of the designed circle center:

[0050] In the formula, δ is the central axis deviation. Let the coordinates be the center of the circle. Design the coordinates of the center of the circle.

[0051] In this embodiment of the invention, during the construction process, after the installation of each decorative unit in the construction area is completed, the cumulative deviation of the splicing surface accuracy is calculated. The cumulative deviation of the splicing surface accuracy is compared with a first preset threshold and a second preset threshold, respectively. Based on the result that the cumulative deviation of the splicing surface accuracy is less than or equal to the first preset threshold, it is determined that the construction of the finishing unit in the current construction area is qualified, and the subsequent construction area is continued to be constructed in the original construction direction. The cumulative deviation of the splicing surface accuracy is the root mean square of the sum of the squares of the joint width deviation and the height difference of the splicing surface in each constructed area:

[0052] Where σ represents the cumulative deviation of the splicing surface accuracy. Let be the joint width deviation of the i-th construction area. Let represent the height difference of the splicing surface in the i-th construction area, and n represent the number of construction areas.

[0053] Based on the result that the cumulative deviation of the splicing surface accuracy is greater than the first preset threshold and less than or equal to the second preset threshold, the construction of the finishing unit in the current construction area is determined to be unqualified, triggering the first compensation adjustment strategy. The first compensation adjustment strategy is to insert a transition adjustment unit between the deviation area and the adjacent construction area, and compensate for the deviation by adjusting the thickness of the transition adjustment unit.

[0054] In this embodiment of the invention, the thickness adjustment amount of the transition adjustment unit is positively correlated with the cumulative deviation of the splicing surface accuracy:

[0055] in, σ is the first compensation coefficient, and σ is the cumulative deviation of the splicing surface accuracy.

[0056] Based on the result that the cumulative deviation of the splicing surface accuracy exceeds the second preset threshold, it is determined that the construction of the finishing unit in the current construction area is unqualified, triggering the second compensation and adjustment strategy. The second compensation and adjustment strategy is: to change the construction direction that has not yet been constructed, or to restart construction from the other side of the column base opposite to the current construction area, using the symmetrical tensile effect generated after the finishing units on both sides of the column base are installed to correct the deviation.

[0057] After executing the second compensation adjustment strategy, the cumulative deviation of the splicing surface accuracy is recalculated, and the recalculated deviation is compared again with the first preset threshold and the second preset threshold until the cumulative deviation of the splicing surface accuracy is less than or equal to the first preset threshold.

[0058] If the cumulative deviation of the splicing surface accuracy exceeds the second preset threshold for more than a preset number of times, the process returns to re-execute the construction area division, increases the number of construction areas, and decreases the arc length of each construction area.

[0059] Specifically, when re-dividing the construction areas, the number of construction areas is increased to 1.2 to 1.5 times the original number, and the arc length of each construction area is reduced to 60% to 80% of the original arc length.

[0060] In this embodiment of the invention, the first preset threshold is 0.8 mm, the second preset threshold is 1.5 mm, the preset number of times is 2 to 4 times, the first compensation coefficient is 0.5 to 1.5, and the specific value of the first compensation coefficient can be adjusted according to the material characteristics and deviation compensation effect of the transition adjustment unit in actual construction, and is not specifically limited.

[0061] Specifically, when construction reaches the last construction area, the deviation of the width of the first and last joints and the height difference of the first and last joint surfaces between this construction area and the first construction area are detected as the basis for judging the overall closure accuracy.

[0062] The width deviation of the first and last seams is compared with the preset allowable width deviation range, and the height difference of the first and last splicing surfaces is compared with the preset allowable height difference range. Based on the fact that the width deviation of the first and last seams is within the preset allowable width deviation range, and the height difference of the first and last splicing surfaces is within the preset allowable height difference range, the overall closure accuracy is determined to be qualified. Based on the result that the deviation of the width of the first and last seams or the difference in the height of the first and last splicing surfaces exceeds the corresponding preset allowable range, the overall closure accuracy is determined to be unqualified, and the optimization mechanism is triggered.

[0063] Specifically, the optimization mechanism includes: The closure deviation is calculated. Based on the result that the closure deviation is less than or equal to a preset closure deviation threshold, a transition adjustment unit is inserted between the last construction area and the first construction area. The closure deviation is compensated by adjusting the thickness of the transition adjustment unit.

[0064] Based on the result that the closure deviation is greater than the preset closure deviation threshold, the following optimization measures are performed: Measure 1: Return to the original construction direction and start construction on the unfinished construction area in the opposite direction to the current construction direction, while simultaneously adjusting the construction advancement direction to be consistent with the offset direction of the height difference between the first and last splicing surfaces. Measure 2: If the closure deviation is still greater than the preset closure deviation threshold after Measure 1 is executed, return to re-execute the construction area division, increase the number of construction areas to a preset multiple of the original number, correspondingly reduce the arc length of each construction area to a preset proportion of the original arc length, and further densify the division in sections with large curvature changes.

[0065] Specifically, the closure deviation is calculated as follows:

[0066] in, The deviation in the width of the first and last seams. The height difference between the first and last splicing surfaces.

[0067] In this embodiment of the invention, the preset allowable width deviation range is [-1.0mm, +1.0mm], the preset allowable height difference range is [0, 0.5mm], the preset closure deviation threshold is 1.2mm, the preset multiple for increasing the number of construction areas is 1.3 times, and the preset proportion for reducing the arc length is 70%. The specific values ​​of the above parameters can be adjusted according to the actual construction conditions and are not specifically limited.

[0068] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-precision construction process for decorative molding of cylindrical arc-shaped surfaces, characterized in that, include: The column base is pretreated, and the curvature parameters and central axis parameters of the arc template are obtained to divide the arc surface of the column into several construction areas; Based on the changes in central axis deviation and radius of curvature, several construction areas of the column are determined for construction. Based on the completion of the installation of a single finishing unit in the construction area, the cumulative deviation of the splicing surface accuracy between two adjacent construction areas is determined. The construction of the finishing unit in the current construction area is determined by comparing the cumulative deviation of the splicing surface accuracy with the preset threshold. In response to the substandard construction of the finishing unit in the current construction area, feedback adjustment is triggered based on the cumulative deviation of the splicing surface accuracy exceeding a preset threshold, so as to insert a transition adjustment unit or adjust the construction direction in two adjacent construction areas; The overall closure accuracy is determined based on the joint width deviation of the two connected construction areas and the height difference of the joint surfaces, so as to determine the trigger optimization mechanism based on the closure deviation.

2. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 1, characterized in that, The process of dividing the construction area includes: Calculate the curvature parameter deviation; The curvature parameter deviation is compared with a preset deviation threshold. Based on the result that the curvature parameter deviation is less than or equal to the preset deviation threshold, it is determined that the current division accuracy meets the standard. The equal central angle division method is used to divide the cylindrical arc surface into several construction areas along the circumference.

3. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 1, characterized in that, The process of dividing the construction area also includes: Based on the result that the curvature parameter deviation is greater than the preset deviation threshold, it is determined that the current division accuracy is not up to standard, triggering the division strategy adjustment mechanism to densify the division of the construction area.

4. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 3, characterized in that, The encryption partitioning methods include: Calculate the rate of change of the radius of curvature; Based on the construction area where the rate of change of the radius of curvature is greater than a preset rate of change threshold, the arc length of the construction area within the construction area is adjusted to a preset ratio of the reference arc length.

5. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 1, characterized in that, The process of determining the construction areas of the column includes: Calculate the central axis deviation, take the construction area corresponding to the direction with the largest central axis deviation as the construction starting point, take the direction with the largest change in curvature radius as the construction advancement direction, and carry out construction on each construction area in sequence.

6. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 1, characterized in that, The process of determining whether the finishing unit construction in the current construction area is up to standard includes: The cumulative deviation of the splicing surface accuracy is compared with a first preset threshold. Based on the result that the cumulative deviation of the splicing surface accuracy is less than or equal to the first preset threshold, the construction of the finishing unit in the current construction area is determined to be qualified.

7. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 1, characterized in that, The process of determining whether the finishing unit construction in the current construction area is up to standard also includes: The cumulative deviation of the splicing surface accuracy is compared with a first preset threshold and a second preset threshold, respectively. Based on the result that the cumulative deviation of the splicing surface accuracy is greater than the first preset threshold and less than or equal to the second preset threshold, it is determined that the construction of the finishing unit in the current construction area is unqualified. In response to construction defects, a transition adjustment unit is inserted between the current construction area and the adjacent construction area.

8. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 7, characterized in that, The process of determining whether the finishing unit construction in the current construction area is up to standard also includes: Based on the result that the cumulative deviation of the splicing surface accuracy is greater than the second preset threshold, it is determined that the construction of the finishing unit in the current construction area is unqualified; In response to substandard construction, the construction direction was redefined.

9. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 1, characterized in that, The process of determining the overall closure accuracy includes: The width deviation of the first and last seams is compared with the preset allowable width deviation range, and the height difference of the first and last splicing surfaces is compared with the preset allowable height difference range. Based on the result that the deviation of the width of the first and last seams or the difference in the height of the first and last splicing surfaces exceeds the corresponding preset allowable range, the overall closure accuracy is determined to be unqualified.

10. The high-precision cylindrical arc-shaped curved surface decoration forming construction process according to claim 1, characterized in that, The process of determining the trigger optimization mechanism based on closure bias includes: The closure deviation is calculated. Based on the result that the closure deviation is less than or equal to a preset closure deviation threshold, a transition adjustment unit is inserted between the last construction area and the first construction area. The thickness of the transition adjustment unit is adjusted to compensate for the closure deviation.

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