CN-120480349-B - Large-span water conservancy gate and manufacturing process thereof

CN120480349BCN 120480349 BCN120480349 BCN 120480349BCN-120480349-B

Abstract

The invention belongs to the technical field of hydraulic engineering manufacture, and provides a large-span hydraulic gate and a manufacturing process thereof, wherein welding track monitoring is carried out on welding heads in the symmetrical direction through a visual sensor in a history symmetrical welding period to obtain an A welding split rail and a B welding split rail, welding seams at two sides of the A, B welding split rail are respectively analyzed from a space X axis, a space Y axis and a space Z axis, the integral coincidence degree of A, B welding split rails in a three-dimensional space is reflected, namely the consistency comprehensive performance of welding seams at two sides in each dimension is realized, so that vibration and shaking generated by inconsistent welding seam positions in the operation process of the gate are reduced, the structural stress of the gate is more uniform, the effect of larger external force can be born, gaps at the welding seams are effectively reduced, the sealing performance of the gate is improved, and the problems of water leakage and the like are prevented.

Inventors

XIA ZHENQUAN
ZHOU PENG
PAN HUA

Assignees

扬州研工水务科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250530

Claims (4)

1. A manufacturing process of a large-span water conservancy gate is characterized by comprising the following steps: in the history symmetrical welding period, monitoring welding tracks of the welding heads in the symmetrical direction to obtain an A welding track and a B welding track; carrying out consistency analysis on welding seams at two sides of a A, B welding split rail; If welding seams at two sides of the A, B welding split rails are inconsistent, performing stability analysis on the split rail deviation time periods in a plurality of history symmetrical welding periods, and evaluating whether the split rail deviation time periods are stable or not; if the track-dividing deviation period is stable, acquiring the adjustment quantity of the track-dividing welding gap, and performing welding adjustment on A, B welding tracks; if the track-dividing deviation period is unstable, acquiring a track-dividing welding gap adjustment range, and performing welding adjustment on A, B welding tracks; The method comprises the following steps of performing stable analysis on the track dividing deviation time periods in a plurality of history symmetrical welding periods to obtain the key track dividing quantity ratio: Randomly selecting a history symmetrical welding period as a target analysis period, and acquiring the sequence of all track-dividing deviation periods in the target analysis period to rank the target deviation; the residual historical symmetric welding period is used as a comparison analysis period, and comparison deviation ranks corresponding to the track separation deviation periods in all the comparison analysis periods are extracted; Recording that at least one comparison deviation ranking in the comparison analysis period coincides with the target deviation ranking in the target analysis period, recording the comparison deviation ranking as the coincidence deviation ranking, counting the track dividing deviation time periods of the coincidence deviation ranking, respectively acquiring corresponding welding tracks for marking, recording the corresponding welding tracks as the coincident welding tracks, counting the total number of the coincident welding tracks in a plurality of historical symmetric welding periods, and calculating the ratio of the total number of the historical symmetric welding time periods in the plurality of historical symmetric welding periods to obtain the important track dividing number ratio; The method comprises the steps of performing stable analysis on the track dividing deviation time periods in a plurality of history symmetrical welding periods to obtain a track dividing deviation standard deviation, wherein the process is as follows: In the track dividing deviation period of each superposition deviation rank, obtaining a corresponding track dividing anastomosis value, and entering with a track dividing anastomosis threshold value Performing row difference processing, namely taking an absolute value, performing ratio calculation on the absolute value and the split matching threshold value, and outputting to obtain a split deviation ratio; calculating standard deviation of all the track dividing deviation ratios, and outputting to obtain the standard deviation of the track dividing deviation ratios; whether the track-dividing deviation period is stable or not is evaluated, and the process is as follows: carrying out ratio processing on the key track dividing quantity ratio and the track dividing deviation standard deviation, and outputting to obtain a deviation stable value; if the deviation stable value is greater than or equal to the deviation stable threshold value, generating a deviation stable signal; if the track-dividing deviation period is stable, the track-dividing welding gap adjustment quantity is obtained, and the process is as follows: if a deviation stable signal is generated, extracting a track deviation degree ratio corresponding to the heavy spot welding track, carrying out averaging treatment, outputting to obtain a track welding gap adjustment quantity, and carrying out welding adjustment on the heavy spot welding track according to the track welding gap adjustment quantity; If the track dividing deviation period is unstable, acquiring an early warning lower limit welding track dividing and an early warning upper limit welding track dividing, wherein the process is as follows: If a deviation fluctuation signal is generated, comparing the magnitudes of deviation stable values corresponding to the heavy spot welding split rails in a plurality of history symmetrical welding periods, and respectively extracting key spot welding split rails corresponding to the deviation stable maximum value and the deviation stable minimum value to serve as an early warning lower limit welding split rail and an early warning upper limit welding split rail; the process for obtaining the adjustment range of the split welding gap comprises the following steps: acquiring corresponding split track deviation ratios of the early warning lower limit welding split tracks in a plurality of history symmetrical welding periods, carrying out averaging treatment, and outputting to obtain a lower limit adjustment value; acquiring corresponding track dividing deviation ratios of the early warning upper limit welding tracks in a plurality of history symmetrical welding periods, carrying out averaging treatment, and outputting to obtain an upper limit adjustment value; and constructing a track-dividing welding gap adjusting range based on the lower limit adjusting value and the upper limit adjusting value.
2. The manufacturing process of the large-span water conservancy gate according to claim 1, wherein the acquisition modes of the welding A split rail and the welding B split rail are as follows: Equally dividing the history symmetrical welding period into a plurality of history symmetrical welding periods; Converting a weld track in the A, B direction into a three-dimensional coordinate model by utilizing a visual sensor, equally dividing a history symmetrical welding period into a plurality of history actual measurement nodes, acquiring coordinate points of a welding head in each history actual measurement node on the three-dimensional coordinate model to obtain an A actual measurement coordinate point, connecting the A actual measurement coordinate points corresponding to all the history actual measurement nodes in the history symmetrical welding period according to a time sequence to obtain an A welding split rail; equally dividing a history symmetrical welding period into a plurality of actual measurement nodes, and acquiring coordinate points of a welding head in each history actual measurement node on a three-dimensional coordinate model to obtain an actual measurement coordinate point B; And connecting the B actual measurement coordinate points corresponding to all the history actual measurement nodes in the history symmetrical welding period according to a time sequence to obtain a B welding split rail.
3. The manufacturing process of the large-span water conservancy gate according to claim 1, wherein the process of analyzing weld seams on two sides of a A, B welded split rail is as follows: In the history symmetrical welding period, respectively obtaining and combining A measured coordinate points corresponding to A, B welding split rails at each history measured node to obtain an X-axis comparison group, a Y-axis comparison group and a Z-axis comparison group; and respectively carrying out calculation processing on all the X-axis comparison groups, the Y-axis comparison groups and the Z-axis comparison groups by using a Pelson distance formula to obtain an X-axis difference value, a Y-axis difference value and a Z-axis difference value.
4. A process for manufacturing a large-span water conservancy gate according to claim 3, wherein the process for evaluating whether the welding seams on two sides of a A, B welding split rail are consistent is as follows: Inputting the X-axis difference value, the Y-axis difference value and the Z-axis difference value into a coordinate distance formula, outputting to obtain a track separation fit value, and generating a track separation welding deviation signal to obtain a track separation deviation period if the track separation fit value is larger than a track separation fit threshold value.

Description

Large-span water conservancy gate and manufacturing process thereof Technical Field The invention belongs to the technical field of hydraulic engineering manufacturing, and particularly relates to a large-span hydraulic gate and a manufacturing process thereof. Background In the field of hydraulic engineering, the manufacturing quality of a large-span gate is directly related to the safe and stable operation of the hydraulic engineering. The welding process is used as a key link in the manufacturing process of the gate, and the quality of the welding process has a decisive influence on the overall performance of the gate. As a common welding method, the symmetrical welding has certain advantages in the aspects of improving the welding efficiency and ensuring the welding quality, and is particularly suitable for welding large-scale structures such as large-span gates. In the prior art, aiming at the problem of inconsistent welding tracks in the symmetrical welding process, the prior art has certain limitation. On the one hand, when analyzing the welding track, only the deviation in a single dimension is usually focused, and the comprehensive consideration of the integral coincidence degree of the welding track in the three-dimensional space (X axis, Y axis and Z axis) is lacking; On the other hand, the prior art lacks systematic, in-depth analysis of the track-split deviations that occur during welding. During welding, even if a split-rail deviation phenomenon is found, it is difficult to determine whether such deviation occurs occasionally or is regular. Whether the effective evaluation method is short of stability of the track-dividing deviation period or not leads to incapability of accurately judging the severity and the influence range of the problem in the welding process, and due to the lack of stable analysis of the track-dividing deviation period, accurate application is difficult in the subsequent welding adjustment process. Therefore, the invention provides a large-span water conservancy gate and a manufacturing process thereof. Disclosure of Invention In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved. The technical scheme adopted for solving the technical problems is as follows: a large-span water conservancy gate and a manufacturing process thereof comprise the following steps: in the history symmetrical welding period, welding track monitoring is carried out on the welding head in the symmetrical direction through a visual sensor at the same time, so that a welding track A and a welding track B are obtained; In the history symmetrical welding period, respectively analyzing welding seams at two sides of the A, B welding split rail, and evaluating whether welding seams at two sides of the A, B welding split rail are consistent; If the two welding periods are inconsistent, performing stability analysis on the track dividing deviation periods in the plurality of historical symmetrical welding periods, and evaluating whether the track dividing deviation periods are stable or not to obtain a stability analysis result; and if the track dividing deviation period is stable, acquiring a track dividing welding gap adjustment quantity, performing welding adjustment on A, B welding tracks, and if the track dividing deviation period is unstable, acquiring a track dividing welding gap adjustment range, and performing welding adjustment on A, B welding tracks. The invention further adopts the scheme that the acquisition modes of the welding split A and the welding split B are as follows: Equally dividing the history symmetrical welding period into a plurality of history symmetrical welding periods; Converting a weld track in the A, B direction into a three-dimensional coordinate model by utilizing a visual sensor, equally dividing a history symmetrical welding period into a plurality of history actual measurement nodes, acquiring coordinate points of a welding head in each history actual measurement node on the three-dimensional coordinate model to obtain an A actual measurement coordinate point, connecting the A actual measurement coordinate points corresponding to all the history actual measurement nodes in the history symmetrical welding period according to a time sequence to obtain an A welding split rail Equally dividing a history symmetrical welding period into a plurality of actual measurement nodes, and acquiring coordinate points of a welding head in each history actual measurement node on a three-dimensional coordinate model to obtain an actual measurement coordinate point B; And connecting the B actual measurement coordinate points corresponding to all the history actual measurement nodes in the history symmetrical welding period according to a time sequence to obtain a B welding split rail. As a further scheme of the invention, the welding lines on two sides of the A, B welding split rail are respectively analyzed, and t