A multi-stage adjustment mechanism for a prestressed positioning mesh

Abstract

The present application relates to the technical fields of prestressed positioning mesh welding, and especially relates to a multi-stage adjusting mechanism for prestressed positioning mesh, which is provided with a welding control module, an information capturing module, a displacement analysis module and a welding correction module. The transverse steel bars are laid on the longitudinal steel bars through the laying unit, the intersection positions of the longitudinal steel bars and the transverse steel bars are welded through the welding unit, the vibration intensity change curve is drawn through the information capturing module, it is determined whether there is vibration allowance abnormal phenomenon at the intersection positions and the vibration allowance abnormal category of the intersection positions is determined through the abnormal analysis unit, the welding correction mode is selected through the welding correction module, and then, the quick abnormal risk identification according to the actual situation in the steel bar welding and sticking process is realized, the abnormal welding positions are classified and processed, the welding correction mode is adaptively adjusted, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prestressed positioning mesh welding, in particular to a multi-stage adjusting mechanism for prestressed positioning mesh. BACKGROUND

[0002] In modern construction engineering, bridge construction and many infrastructure projects, prestressed positioning mesh plays a key role in connection and support, directly affecting the stability and overall performance of the project. With the increasing diversification and refinement of building structure design, the requirements for prestressed positioning mesh have become more complex and demanding. Different building projects and different structural parts may require prestressed positioning mesh of different specifications, different spacings and different strength characteristics. In large-scale prestressed positioning mesh production process, if the parameters cannot be adjusted in real time, the production process may be bottlenecked, making it difficult to achieve continuous and automated production. Meanwhile, if the prestressed positioning mesh cannot be conveniently adjusted to adapt to the actual installation environment and structural requirements on the construction site, it will increase the construction difficulty, prolong the construction period, and even affect the safety and reliability of the entire building structure. Therefore, in the process of reinforcing steel bar welding, it is urgent to solve the technical problem of quickly and accurately adjusting the welding method to improve the production efficiency and welding reliability of prestressed positioning mesh.

[0003] For example, Chinese patent No. CN110405386B discloses a numerical control full-automatic reinforcing steel bar welded mesh welding machine, which comprises longitudinal reinforcing steel bar feeding mechanism, row welding mechanism, transverse reinforcing steel bar spacing material dropping mechanism and reinforcing steel bar welded mesh conveying mechanism arranged in sequence, and longitudinal reinforcing steel bar synchronous conveying mechanism is further arranged on one side of the longitudinal reinforcing steel bar feeding mechanism. The invention can realize the synchronization of longitudinal reinforcing steel bar feeding during the feeding process, avoid the situation that one end of the local longitudinal reinforcing steel bar of the welded reinforcing steel mesh extends out of the entire reinforcing steel mesh while the other end is retracted into the reinforcing steel mesh, improve the yield, realize rough inspection after welding, find reinforcing steel mesh that needs to be welded, and reduce the working hours and processes of subsequent quality inspection.

[0004] The existing technology also has the following problems:

[0005] The existing technology does not consider the influence of the fitting state of reinforcing steel bars on the welding effect during the reinforcing steel bar welding process. The existing technology cannot quickly identify abnormal risks according to the actual situation during the reinforcing steel bar welding fitting process, cannot classify and process abnormal welding positions, and cannot adaptively adjust the correction method of welding, which affects the production efficiency and welding reliability of prestressed positioning mesh. SUMMARY

[0006] To this end, the application provides a multi-stage adjusting mechanism for a prestressed positioning mesh to overcome the problems in the prior art that the actual situation during the process of welding and adhering the steel bars cannot be quickly and abnormally recognized, the abnormal welding positions cannot be classified and processed, and the correction mode of welding cannot be adaptively adjusted.

[0007] To achieve the above-mentioned object, the application provides a multi-stage adjusting mechanism for a prestressed positioning mesh, comprising:

[0008] a welding control module comprising a carrier for pulling the longitudinal steel bars to move, a laying unit for laying the transverse steel bars on the longitudinal steel bars, and a welding unit for welding the intersection positions of the longitudinal steel bars and the transverse steel bars;

[0009] a plurality of sets of clamps for fixing the transverse steel bars are arranged on both sides of the carrier;

[0010] an information capturing module connected with the welding control module for capturing the vibration intensity of the intersection positions in the steel bar adhering cycle to draw a vibration intensity change curve;

[0011] a displacement analysis module connected with the information capturing module, comprising an abnormality analysis unit and an abnormality classification unit, the abnormality analysis unit being used to determine whether there is a vibration allowance abnormality phenomenon in the intersection positions according to the signal intensity change of the vibration intensity change curve;

[0012] the abnormality classification unit being used to determine the vibration allowance abnormality category of the intersection positions according to the characteristic sub-parameters of the vibration intensity change curve;

[0013] wherein the characteristic sub-parameters comprise a plurality of wave peak signal intensities of the vibration intensity change curve;

[0014] a welding correction module connected with the displacement analysis module and the welding control module respectively, being used to select a welding correction mode according to the vibration allowance abnormality category, comprising,

[0015] determining the transverse steel bars corresponding to the intersection positions, and adjusting the interval distance of the clamps at both ends of the transverse steel bars;

[0016] or, correcting the welding time length of the welding unit at the intersection positions.

[0017] Further, the information capturing module is used to draw a vibration intensity change curve, wherein,

[0018] the vibration intensity change curve establishes a rectangular coordinate system with the time of the steel bar adhering cycle as the horizontal axis and the vibration signal intensity in the steel bar adhering cycle as the vertical axis.

[0019] Further, the abnormality analysis unit is further configured to obtain a margin coefficient of the cross position, wherein,

[0020] obtain a vibration intensity variation curve corresponding to the cross position;

[0021] determine a duration of the vibration signal intensity greater than the preset vibration amplitude reference value on the horizontal axis of the rectangular coordinate system as the margin coefficient of the cross position.

[0022] Further, the abnormality analysis unit determines whether the cross position has a vibration margin abnormality phenomenon, wherein,

[0023] if the margin coefficient of the cross position meets the reinforcement adhesion normal condition, the abnormality analysis unit determines that the cross position does not have a vibration margin abnormality phenomenon;

[0024] if the margin coefficient of the cross position does not meet the reinforcement adhesion normal condition, the abnormality analysis unit determines that the cross position has a vibration margin abnormality phenomenon;

[0025] wherein, the reinforcement adhesion normal condition is that the margin coefficient of the cross position does not exceed a preset margin threshold.

[0026] Further, the abnormality classification unit is further configured to obtain the characteristic sub-parameters, wherein,

[0027] obtain a vibration intensity variation curve corresponding to the cross position having the vibration margin abnormality phenomenon;

[0028] determine a difference between a maximum value of the vibration signal intensity corresponding to a wave crest in the vibration intensity variation curve and an average value of the vibration signal intensity corresponding to a plurality of wave crests as the characteristic sub-parameters of the cross position.

[0029] Further, the abnormality classification unit determines a vibration margin abnormality category of the cross position, wherein,

[0030] if the characteristic sub-parameters of the cross position having the vibration margin abnormality phenomenon do not meet a vibration margin weak dominance condition, the abnormality classification unit determines that the vibration margin abnormality category of the cross position is a vibration margin transverse abnormality category;

[0031] if the characteristic sub-parameters of the cross position having the vibration margin abnormality phenomenon meet the vibration margin weak dominance condition, the abnormality classification unit determines that the vibration margin abnormality category of the cross position is a vibration margin longitudinal abnormality category.

[0032] Further, the vibration margin weak dominance condition is that the characteristic sub-parameters corresponding to the cross position do not exceed a preset characteristic sub-parameter threshold.

[0033] Further, the welding correction module selects a welding correction mode, wherein,

[0034] If the vibration allowance abnormality category is a vibration allowance transverse abnormality category, the welding correction module selects a welding correction mode as adjusting the interval distance of the clamps at the two ends of the transverse steel bar corresponding to the intersection position;

[0035] If the vibration allowance abnormality category is a vibration allowance longitudinal abnormality category, the welding correction module selects a welding correction mode as correcting the welding time length of the welding unit at the intersection position.

[0036] Further, the welding correction module adjusts the interval distance of the clamps at the two ends of the transverse steel bar based on the characteristic sub-parameters corresponding to the intersection position.

[0037] The adjustment amount of the interval distance is positively correlated with the characteristic sub-parameters.

[0038] Further, the welding unit adjusts the correction amount of the welding time length at the intersection position based on the average value of the vibration signal intensity corresponding to the several wave crests in the vibration intensity change curve corresponding to the intersection position, and the correction amount is positively correlated with the average value.

[0039] Compared with the prior art, the present application has the beneficial effects that the welding control module, the information capturing module, the displacement analysis module and the welding correction module are arranged, the transverse steel bar is laid on the longitudinal steel bar by dragging the longitudinal steel bar by the laying unit, the intersection position of the longitudinal steel bar and the transverse steel bar is welded by the welding unit, the vibration intensity change curve is drawn by the information capturing module, it is determined whether the intersection position has a vibration allowance abnormality phenomenon and the vibration allowance abnormality category of the intersection position is determined by the abnormality analysis unit, the welding correction mode is selected by the welding correction module, and further, the actual situation in the steel bar welding and fitting process is used for quickly identifying abnormal risks, the abnormal welding position is classified and processed, the welding correction mode is adaptively adjusted, and the production efficiency and the welding reliability of the prestressed positioning mesh are improved.

[0040] Especially, the present application determines whether there is a vibration allowance abnormal phenomenon in the cross position through the signal strength change of the vibration intensity change curve, and it can be understood that when the transverse steel bar and the longitudinal steel bar are attached at the cross position, vibration will be generated due to interaction, and if the steel bar attachment process is relatively stable, the vibration intensity change curve will show a relatively regular characteristic, the curve fluctuation is small, and the vibration intensity will gradually tend to a stable value, and if the steel bar is not accurately placed or there is a vibration allowance that causes the attachment position to deviate, the contact between the steel bars will be uneven during attachment, and local collisions or friction may occur first, resulting in a large and irregular fluctuation in vibration intensity, with a sudden peak value, and due to uneven stress caused by deviation, the vibration intensity is also difficult to stabilize, and a large fluctuation will continue to occur, the present application determines whether there is a vibration allowance abnormal phenomenon according to the actual situation during the steel bar welding and attachment process, thereby realizing rapid abnormal risk identification according to the actual situation during the steel bar welding and attachment process, improving the production efficiency and welding reliability of the prestressed positioning mesh.

[0041] Especially, the present application determines the vibration allowance abnormal category of the cross position through the characteristic sub-parameters of the vibration intensity change curve, and it can be understood that during the attachment process at the cross position of the steel bars, the wave peak in the vibration intensity change curve reflects the vibration intensity change due to vibration, the difference reflects the peak value characteristic and the deviation of the overall energy distribution of the vibration signal, and the maximum value of the vibration signal intensity corresponding to the wave peak represents the energy release when the vibration is most intense, and the average value of the vibration signal intensity corresponding to a number of wave peaks represents the average energy level of the vibration in a stage, when the attached steel bars deviate horizontally, due to the mutual friction between the transverse steel bar and the longitudinal steel bar caused by the horizontal deviation of the position during the attachment of the steel bars, a larger vibration will be generated, and there will be an abnormally prominent vibration peak in the vibration intensity change curve, and when the steel bars deviate vertically, due to the lower tightness at the attachment position of the steel bars, the vibration lasts for a long time, and the fluctuation in the vibration intensity change curve is not obvious, thereby realizing rapid abnormal risk identification according to the actual situation during the steel bar welding and attachment process, classifying and processing the abnormal welding positions, and improving the production efficiency and welding reliability of the prestressed positioning mesh.

[0042] Especially, in the case of vibration allowance transverse abnormal category, the present application adjusts the interval distance of the clamps at both ends of the transverse steel bar, and it can be understood that in the case of vibration allowance transverse abnormal category, the transverse steel bar at the cross position deviates, and the deviated steel bar will cause poor attachment at the cross position, and problems such as stress concentration and uneven welds are prone to occur during welding, which seriously weakens the strength and stability of the welded joint. Adjusting the interval distance of the clamps at both ends of the transverse steel bar can enable the transverse and longitudinal steel bars to be precisely connected at the cross point, forming a uniform and stable welding surface, which can significantly improve the welding quality, and thereby realizing adaptive adjustment of the correction mode of welding, improving the production efficiency and welding reliability of the prestressed positioning mesh.

[0043] Especially, the present application corrects the welding time length of the cross position in the case of the vibration allowance longitudinal abnormal category, and it can be understood that in the case of the vibration allowance longitudinal abnormal category, the fitting state of the steel bars is not tight, and the insufficient welding pool and uneven weld metal filling caused by the non-tight fitting of the steel bars reduce the strength and density of the welded joint, making it difficult to withstand the expected load and stress, and by correcting the welding time length, the welding time can be appropriately prolonged according to the fitting degree, so that the welding heat can fully act on the contact gap, and the weld metal can flow and fill better, the fusion effect is enhanced, the integrity and mechanical properties of the welded joint are improved, the stability and reliability of the entire steel structure are ensured, and then the adaptive correction mode of welding is realized, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0044] Especially, the adjustment amount of the present application for adjusting the interval distance of the clamp has a positive correlation with the characteristic sub-parameters, and it can be understood that the greater the characteristic sub-parameters, the greater the difference between the maximum value of the vibration signal intensity corresponding to the wave peak in the vibration intensity change curve and the average value of the vibration signal intensity corresponding to the several wave peaks, the greater the lateral offset amount of the steel bars during fitting, and the greater the adjustment amount required for adjusting the offset steel bars, and then the adaptive correction mode of welding is realized, the offset steel bars are adjusted, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0045] Especially, the correction amount of the present application for the welding time length of the cross position has a positive correlation with the average value of the vibration signal intensity corresponding to the several wave peaks in the vibration intensity change curve, and it can be understood that the greater the average value of the vibration signal intensity corresponding to the several wave peaks in the vibration intensity change curve, the greater the longitudinal offset amount of the steel bars during fitting, and the worse the fitting tightness at the fitting place of the steel bars, and the greater the correction amount required for the welding time length of the cross position, and then the adaptive correction mode of welding is realized, the offset steel bars are adjusted, and the production efficiency and welding reliability of the prestressed positioning mesh are improved. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 The functional block diagram of the multi-stage adjusting mechanism of the prestressed positioning mesh for the embodiment of the present application;

[0047] Figure 2 The logic flow chart for determining whether the cross position has vibration allowance abnormal phenomenon by the abnormal analysis unit of the embodiment of the present application;

[0048] Figure 3 The logic flow chart for determining the vibration allowance abnormal category of the cross position by the abnormal classification unit of the embodiment of the present application.

[0049] Figure 4The logic flow chart for selecting a welding and correcting mode for the welding and correcting module of the embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the objects and advantages of the present application clearer, the present application will be further described in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0051] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the embodiments are only used to explain the technical principles of the present application and are not used to limit the protection scope of the present application.

[0052] It should be noted that, in the description of the present application, the terms indicating the direction or positional relationship such as "upper", "lower", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0053] In addition, it should also be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] Please refer to Figure 1 Fig. 1 is a functional block diagram of a multi-stage adjusting mechanism for a prestressed positioning mesh according to an embodiment of the present application, and the multi-stage adjusting mechanism for a prestressed positioning mesh according to the present application comprises:

[0055] A welding control module, which comprises a carrier for pulling the longitudinal steel bars to move, a laying unit for laying the transverse steel bars on the longitudinal steel bars, and a welding unit for welding the intersection position of the longitudinal steel bars and the transverse steel bars;

[0056] A plurality of clamps for fixing the transverse steel bars are arranged on both sides of the carrier;

[0057] Specifically, the present application does not limit the specific structure of the welding control module, and preferably, it can be a butt welding machine, the steel bars to be welded are clamped on the electrode clamp, and the steel bars are fused together at the intersection welding point by a low-voltage and high-current power supply, so as to complete the welding process.

[0058] an information capturing module connected with the welding control module, used to capture the vibration intensity of the cross position in the reinforcing bar adhering period, so as to draw a vibration intensity change curve;

[0059] Specifically, the information capturing module is not limited in the present application, preferably, it can be a vibration sensor connected with data processing software, the vibration intensity signal of the reinforcing bar adhering period is captured by the vibration sensor, the collected digital signal is preprocessed, high frequency interference is removed, and the vibration intensity change curve is drawn, which will not be described here.

[0060] Specifically, the reinforcing bar adhering period is the process of laying the transverse reinforcing bar on the longitudinal reinforcing bar by the laying unit.

[0061] a displacement analysis module connected with the information capturing module, comprising an abnormality analysis unit and an abnormality classification unit, the abnormality analysis unit is used to determine whether there is a vibration allowance abnormality phenomenon in the cross position according to the signal intensity change of the vibration intensity change curve;

[0062] Specifically, the displacement analysis module is not limited in the present application, preferably, it can be composed of logic components, the vibration allowance abnormality phenomenon is determined according to the vibration intensity change curve, the logic components can be field programmable logic components, microprocessors, processors used in computers, etc., which will not be described here.

[0063] the abnormality classification unit is used to determine the vibration allowance abnormality category of the cross position according to the characteristic sub-parameters of the vibration intensity change curve;

[0064] The characteristic sub-parameters include the signal intensity of several wave peaks of the vibration intensity change curve.

[0065] a welding correction module connected with the displacement analysis module and the welding control module respectively, used to select the welding correction mode according to the vibration allowance abnormality category, comprising,

[0066] determining the transverse reinforcing bar corresponding to the cross position, adjusting the interval distance of the clamps at both ends of the transverse reinforcing bar;

[0067] or, correcting the welding time length of the welding unit at the cross position.

[0068] Specifically, the welding correction module is not limited in the present application, preferably, it can be composed of logic components, the welding correction mode is selected according to the vibration allowance abnormality category, the logic components can be field programmable logic components, microprocessors, processors used in computers, etc., which will not be described here.

[0069] Specifically, the information capturing module is configured to draw a vibration intensity variation curve, wherein,

[0070] The vibration intensity variation curve establishes a rectangular coordinate system with the time of a reinforcing bar bonding cycle as the horizontal axis and the vibration signal intensity in the reinforcing bar bonding cycle as the vertical axis.

[0071] Specifically, the abnormality analysis unit is further configured to obtain a margin coefficient of the cross position, wherein,

[0072] obtain the vibration intensity variation curve corresponding to the cross position;

[0073] determine the duration of the vibration signal intensity greater than the preset vibration amplitude reference value on the horizontal axis of the rectangular coordinate system as the margin coefficient of the cross position.

[0074] Specifically, the preset vibration amplitude reference value can be obtained by a person skilled in the art according to the current prestressed positioning mesh welding working condition, and the average value of a plurality of vibration amplitude values obtained at a preset interval is determined as the vibration amplitude reference value. Preferably, the vibration amplitude value is recorded once every 2 seconds, and the vibration amplitude reference value can be 0.25 cm.

[0075] Specifically, please refer to Figure 2 the abnormality analysis unit determines whether the cross position has a vibration margin abnormality phenomenon, wherein,

[0076] If the margin coefficient of the cross position meets the reinforcing bar bonding normal condition, the abnormality analysis unit determines that the cross position does not have a vibration margin abnormality phenomenon.

[0077] If the margin coefficient of the cross position does not meet the reinforcing bar bonding normal condition, the abnormality analysis unit determines that the cross position has a vibration margin abnormality phenomenon.

[0078] The reinforcing bar bonding normal condition is that the margin coefficient of the cross position does not exceed a preset margin threshold.

[0079] Specifically, the preset margin threshold can be set by a person skilled in the art according to the actual diameter of the reinforcing bar. Preferably, when the diameter of the reinforcing bar is 30 mm, the margin threshold can be 2 s.

[0080] Specifically, the present application determines whether there is a vibration allowance abnormal phenomenon in the cross position through the signal intensity change of the vibration intensity change curve, and it can be understood that when the transverse steel bars and the longitudinal steel bars are attached at the cross position, vibration will be generated due to the interaction, if the steel bar attachment process is relatively stable, the vibration intensity change curve will show a relatively regular characteristic, the curve fluctuation is small, and the vibration intensity will gradually tend to a stable value, and if the steel bars are not accurately placed or there is a vibration allowance that causes the attachment position to deviate, the contact between the steel bars will be uneven during attachment, and local collision or friction may occur first, resulting in a large and irregular fluctuation of the vibration intensity, and there will be a sudden peak, and due to the uneven stress caused by the deviation, the vibration intensity is also difficult to stabilize, and there will be a large fluctuation, the present application determines whether there is a vibration allowance abnormal phenomenon through the signal intensity change, and then, the actual situation during the steel bar welding and attachment process is used for rapid abnormal risk identification, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0081] Specifically, the abnormal classification unit is also used to obtain the characteristic sub-parameters, wherein,

[0082] Obtain the vibration intensity change curve corresponding to the cross position with a vibration allowance abnormal phenomenon;

[0083] The difference between the maximum value of the vibration signal intensity corresponding to the wave crest in the vibration intensity change curve and the average value of the vibration signal intensity corresponding to a plurality of wave crests is determined as the characteristic sub-parameters of the cross position.

[0084] Specifically, please refer to Figure 3 The abnormal classification unit determines the vibration allowance abnormal category of the cross position, wherein,

[0085] If the characteristic sub-parameters of the cross position with a vibration allowance abnormal phenomenon do not meet the weak dominance condition of the vibration allowance, the abnormal classification unit determines that the vibration allowance abnormal category of the cross position is the vibration allowance transverse abnormal category.

[0086] If the characteristic sub-parameters of the cross position with a vibration allowance abnormal phenomenon meet the weak dominance condition of the vibration allowance, the abnormal classification unit determines that the vibration allowance abnormal category of the cross position is the vibration allowance longitudinal abnormal category.

[0087] Specifically, the weak dominance condition of the vibration allowance is that the characteristic sub-parameters corresponding to the cross position do not exceed the preset characteristic sub-parameter threshold.

[0088] Specifically, the preset characteristic sub-parameter threshold value can be set by a person skilled in the art according to the actual diameter of the reinforcing bar, and preferably, when the diameter of the reinforcing bar is 30 mm, the characteristic sub-parameter threshold value can be 0.35 cm.

[0089] Specifically, the present application determines the vibration margin abnormal category of the cross position through the characteristic sub-parameters of the vibration intensity change curve. It can be understood that, in the fitting process of the reinforcing bar cross position, the wave crest in the vibration intensity change curve reflects the vibration intensity change caused by vibration, the difference reflects the deviation of the peak value characteristics and the overall energy distribution of the vibration signal, and the maximum value of the vibration signal intensity corresponding to the wave crest represents the energy release when the vibration is most intense, and the average value of the vibration signal intensity corresponding to a plurality of wave crests embodies the average energy level of the vibration in a stage. When the fitted reinforcing bar is laterally offset, the lateral reinforcing bar and the longitudinal reinforcing bar will rub each other due to the lateral offset of the position of the reinforcing bar during fitting, which will generate larger vibration, and there will be an abnormally prominent vibration peak in the vibration intensity change curve. When the reinforcing bar is longitudinally offset, the continuity of the vibration is longer due to the lower tightness of the fitting position of the reinforcing bar, and the fluctuation in the vibration intensity change curve is not obvious. Therefore, the actual situation during the reinforcing bar welding fitting process is quickly identified, the abnormal welding position is classified and processed, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0090] Specifically, please refer to Figure 4 The figure is a logic flow chart of the welding correction module selecting a welding correction mode, and the welding correction module selects a welding correction mode, wherein,

[0091] If the vibration margin abnormal category is the vibration margin lateral abnormal category, the welding correction mode selected by the welding correction module is to determine the lateral reinforcing bar corresponding to the cross position and adjust the interval distance of the clamps at both ends of the lateral reinforcing bar.

[0092] If the vibration margin abnormal category is the vibration margin longitudinal abnormal category, the welding correction mode selected by the welding correction module is to correct the welding time length of the welding unit at the cross position.

[0093] Specifically, in the case of the transverse abnormality category of the vibration allowance, the interval distance of the clamps at the two ends of the transverse steel bar is adjusted, and it can be understood that in the case of the transverse abnormality category of the vibration allowance, the transverse steel bar at the intersection position is deviated, the deviated steel bar causes poor fit at the intersection, and stress concentration, uneven weld and other problems are prone to occur during welding, which seriously weakens the strength and stability of the welded joint. Adjusting the interval distance of the clamps at the two ends of the transverse steel bar can accurately butt the transverse and longitudinal steel bars at the intersection point, form a uniform and stable welding surface, and significantly improve the welding quality. Furthermore, the adaptive adjustment of the correction mode of welding is realized, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0094] Specifically, in the case of the longitudinal abnormality category of the vibration allowance, the welding time at the intersection position is corrected, and it can be understood that in the case of the longitudinal abnormality category of the vibration allowance, the fit state of the steel bars is not tight, and the tight fit of the steel bars will lead to insufficient formation of the welding pool and uneven filling of the weld metal, which reduces the strength and density of the welded joint, making it difficult to withstand the expected load and stress. By correcting the welding time, the welding time can be appropriately prolonged according to the fit degree, so that the welding heat fully acts on the contact gap, promotes the better flow and filling of the weld metal, enhances the fusion effect, improves the integrity and mechanical properties of the welded joint, and ensures the stability and reliability of the entire steel structure. Furthermore, the adaptive adjustment of the correction mode of welding is realized, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0095] Specifically, the welding correction module adjusts the interval distance of the clamps at the two ends of the transverse steel bar based on the characteristic sub-parameters corresponding to the intersection position.

[0096] The adjustment amount of the interval distance is positively correlated with the characteristic sub-parameters.

[0097] Specifically, the greater the characteristic sub-parameters, the greater the difference between the maximum value of the vibration signal intensity corresponding to the wave peak in the vibration intensity change curve and the average value of the vibration signal intensity corresponding to a plurality of wave peaks, the greater the transverse deviation of the steel bar during fit, and the greater the adjustment amount required for adjusting the deviated steel bar. Furthermore, the adaptive adjustment of the correction mode of welding is realized, the deviated steel bar is adjusted, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0098] Specifically, the welding unit adjusts the correction amount of the welding time at the intersection position based on the average value of the vibration signal intensity corresponding to a plurality of wave peaks in the vibration intensity change curve corresponding to the intersection position, and the correction amount is positively correlated with the average value.

[0099] Specifically, the greater the average value of the vibration signal intensity corresponding to the several wave peaks in the vibration intensity change curve, the greater the longitudinal offset of the reinforcing steel bars during the fitting, the worse the fitting tightness at the fitting position of the transverse and longitudinal reinforcing steel bars, and the greater the correction demand for the welding time at the intersection position. Thus, the adaptive adjustment of the correction mode for welding is realized, the offset reinforcing steel bars are adjusted, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.

[0100] The technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

[0101] The above description is only the preferred embodiments of the present application and is not intended to limit the present application; for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-stage adjustment mechanism for a pre-stressed positioning mesh, characterized in that, The application relates to a welding control system for reinforcing steel bars, comprising: a welding control module, which comprises a carrier for moving longitudinal steel bars, a laying unit for laying transverse steel bars on the longitudinal steel bars, and a welding unit for welding the intersection position of the longitudinal steel bars and the transverse steel bars; a plurality of clamps for fixing the transverse steel bars are arranged on both sides of the carrier; an information capturing module connected with the welding control module, which is used for capturing the vibration intensity of the intersection position in a reinforcing steel bar adhering period, so as to draw a vibration intensity change curve; a displacement analysis module connected with the information capturing module, which comprises an abnormality analysis unit and an abnormality classification unit, the abnormality analysis unit is used for judging whether the intersection position has a vibration allowance abnormality phenomenon according to the signal intensity change condition of the vibration intensity change curve; the abnormality classification unit is used for determining the vibration allowance abnormality category of the intersection position according to a characteristic sub-parameter of the vibration intensity change curve; the characteristic sub-parameter comprises a plurality of wave crest signal intensities of the vibration intensity change curve; a welding correction module connected with the displacement analysis module and the welding control module respectively, which is used for selecting a welding correction mode according to the vibration allowance abnormality category, comprising: determining the transverse steel bar corresponding to the intersection position, and adjusting the interval distance of the clamps at both ends of the transverse steel bar; or, correcting the welding time length of the welding unit at the intersection position; the abnormality classification unit is also used for obtaining the characteristic sub-parameter, wherein: obtaining the vibration intensity change curve of the intersection position with the vibration allowance abnormality phenomenon; determining the difference between the maximum value of the vibration signal intensity corresponding to the wave crest in the vibration intensity change curve and the average value of the vibration signal intensities corresponding to a plurality of wave crests as the characteristic sub-parameter of the intersection position; the abnormality classification unit determines the vibration allowance abnormality category of the intersection position, wherein: if the characteristic sub-parameter of the intersection position with the vibration allowance abnormality phenomenon does not conform to the weak dominance condition of the vibration allowance, the abnormality classification unit determines that the vibration allowance abnormality category of the intersection position is a vibration allowance transverse abnormality category; if the characteristic sub-parameter of the intersection position with the vibration allowance abnormality phenomenon conforms to the weak dominance condition of the vibration allowance, the abnormality classification unit determines that the vibration allowance abnormality category of the intersection position is a vibration allowance longitudinal abnormality category.

2. The multi-stage adjustment mechanism for a pre-stressed site, according to claim 1, wherein, the information capturing module is used for drawing a vibration intensity change curve, wherein: the vibration intensity change curve establishes a rectangular coordinate system with the time change of a reinforcing steel bar adhering period as the horizontal axis and the vibration signal intensity in the reinforcing steel bar adhering period as the vertical axis.

3. The multi-stage adjustment mechanism for a pre-stressed site, according to claim 2, wherein, the abnormality analysis unit is also used for obtaining the allowance coefficient of the intersection position, wherein: obtaining the vibration intensity change curve corresponding to the intersection position; determining the duration of the vibration signal intensity greater than a preset vibration amplitude reference value on the horizontal axis of the rectangular coordinate system as the allowance coefficient of the intersection position.

4. The multi-stage adjustment mechanism for a pre-stressed site, according to claim 3, wherein, the abnormality analysis unit judges whether the intersection position has a vibration allowance abnormality phenomenon, wherein: if the allowance coefficient of the intersection position conforms to the normal condition of the reinforcing steel bar adhering, the abnormality analysis unit judges that the intersection position does not have the vibration allowance abnormality phenomenon. If the excess coefficient of the intersection position does not meet the reinforcement fitting normal condition, the abnormality analysis unit determines that the intersection position has a vibration excess abnormality phenomenon; The reinforcement fitting normal condition is that the excess coefficient of the intersection position does not exceed a preset excess threshold.

5. The multi-stage adjustment mechanism for a pre-stressed site, according to claim 4, wherein, The vibration excess weak dominance condition is that the representation sub-parameter corresponding to the intersection position does not exceed a preset representation sub-parameter threshold.

6. The multi-stage adjustment mechanism for a pre-stressed site, according to claim 5, wherein, The welding correction module selects a welding correction mode, wherein, If the vibration excess abnormality category is a vibration excess transverse abnormality category, the welding correction mode selected by the welding correction module is to determine the transverse reinforcement corresponding to the intersection position and adjust the interval distance of the clamps at both ends of the transverse reinforcement; If the vibration excess abnormality category is a vibration excess longitudinal abnormality category, the welding correction mode selected by the welding correction module is to correct the welding time length of the welding unit at the intersection position.

7. The multi-stage adjustment mechanism for a pre-stressed site, according to claim 6, wherein, The welding correction module adjusts the interval distance of the clamps at both ends of the transverse reinforcement based on the representation sub-parameter corresponding to the intersection position. The adjustment amount of the interval distance is positively correlated with the representation sub-parameter.

8. The multi-stage adjustment mechanism for a pre-stressed site, according to claim 6, wherein, The welding unit adjusts the correction amount of the welding time length at the intersection position based on the average value of the vibration signal intensity corresponding to a plurality of wave peaks in the vibration intensity change curve of the intersection position, and the correction amount is positively correlated with the average value.

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