Long weld seam wheel dynamic stress regulation device and method

Abstract

The application discloses a long-welding-line wheel rotating stress regulation device and method, which comprises a support body, a shaft cylinder, two parallel arranged double rings, two support arms, two mounting plates, a collector ring and a regulation wedge. The double rings are assembled on both ends of the shaft cylinder through spokes. The support arms are rotatably connected with both ends of the shaft cylinder and located outside the double rings. The mounting plates are arranged at a predetermined distance from the shaft cylinder and around the shaft cylinder. The collector ring is sleeved in the middle of the shaft cylinder and is used for supplying power for a high-energy acoustic beam transducer. One end of the regulation wedge is provided with a fixed flange, and the other end is provided with a regulation curved surface. The regulation wedge is arranged around the double rings. The regulation curved surface has the same curvature as the double rings, and the fixed flange is assembled on the through hole of the mounting plate. The receiving and transmitting end of the high-energy acoustic beam transducer is connected with one end of the fixed flange. The device has high flexibility and strong adaptability, can reduce investment cost and maintenance complexity, and improves regulation precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of residual stress regulation, and particularly relates to a long-welded seam wheel-type stress regulation device and method. BACKGROUND

[0002] Welding is a process widely used in the field of mechanical processing, and has a wide range of applications. After welding, large plate structures inevitably produce a non-uniform residual stress field. This stress concentration not only may cause deformation and even cracks in the long-welded seam area, but also seriously affects the stability, mechanical properties and service life of the component in the subsequent use process. Traditionally, the methods for regulating residual stress include natural aging, heat treatment and mechanical impact, but each of these methods has its limitations: the natural aging method is time-consuming and occupies a large area, and the regulation effect is difficult to accurately control; the heat treatment method has high energy consumption and serious environmental pollution, and is challenging when processing large plate components; the mechanical impact method may damage the surface of the component. In view of the shortcomings of these traditional methods, the technology of using high-energy ultrasonic waves to regulate residual stress has gradually been verified in multiple fields. It has the characteristics of short processing time, low energy consumption and no damage to the component, and is particularly suitable for reducing and homogenizing the residual stress of large plate welding.

[0003] However, the existing high-energy ultrasonic technology is applied according to the design of a device for regulating in a fixed position for components of different shapes. This device is not only complex in structure, but also fixed in the stress concentration area, and has limited adaptability to the shape of the component. Moreover, this fixed regulation device needs to be customized for each specific workpiece or size, which is higher in cost and storage space. With different requirements of the working surface, the angle or position needs to be adjusted. This fixed regulation device cannot well adapt to more variable working conditions and complex geometries, such as irregular or curved weld seams. SUMMARY

[0004] Therefore, the main purpose of the present application is to provide a long-welded seam wheel-type stress regulation device and method, so as to achieve the purposes of high flexibility, strong adaptability, reduced investment cost and maintenance complexity.

[0005] The present application provides a long-welded seam wheel-type stress regulation device, which comprises a support body, a collector ring, a regulation wedge and a high-energy acoustic beam transducer, wherein:

[0006] The support body is in the shape of a wheel as a whole, and comprises:

[0007] a shaft cylinder,

[0008] two parallelly arranged double-rim circles, which are respectively assembled at both ends of the shaft cylinder through spokes,

[0009] a support frame comprising two arms, which are rotationally connected to both ends of the shaft cylinder and located outside the double-rim circles,

[0010] A plurality of mounting plates are arranged around the shaft cylinder at a predetermined distance from the shaft cylinder and are fixed by spokes;

[0011] A bus ring is sleeved in the middle of the shaft cylinder, and the bus ring supplies power to the high-energy acoustic beam transducer;

[0012] A control wedge is arranged around the double rim, one end of the control wedge is provided with a fixed flange, and the other end is provided with a control curved surface, the curvature of the control curved surface is the same as that of the double rim, the fixed flange is assembled on the through hole of the mounting plate, and the receiving end of the high-energy acoustic beam transducer is connected with one end of the fixed flange.

[0013] Therefore, the support body is in the shape of a wheel, the bearings at both ends of the shaft cylinder are assembled with support frames, the annular ring formed by the control curved surface of the control wedge and the double rim rolls and controls at the long weld, enhances the flexibility of the device, and can adapt to the shapes of various components; the mounting plate is provided on the support body, the mounting plate can be used as the boundary between the control wedge and the high-energy acoustic beam transducer, that is, the high-energy acoustic beam transducer is assembled between the mounting plate and the shaft cylinder, the control wedge is assembled between the mounting plate and the double rim, and the mounting plate is matched with the fixed flange to make the control curved surface of the control wedge surround the outer curved surface of the annular ring; the bus ring not only can supply power to the high-energy acoustic beam transducer, but also can avoid the winding of the cable of the high-energy acoustic beam transducer.

[0014] Optionally, the through hole is arranged at the middle position of the mounting plate.

[0015] Therefore, the through hole is arranged at the middle position of the mounting plate, which is matched with the high-energy acoustic beam transducer, so as to facilitate the fixed connection of the mounting plate with the fixed flange on the control wedge through the high-energy acoustic beam transducer; the through hole at the middle position provides more flexibility for the fixed flange, which can adjust the position or direction of the fixed flange according to actual needs, adapt to different installation environments and requirements, and enhance the adaptability and configurability of the device.

[0016] Optionally, the outer circumferential ring of the double rim is assembled with a non-slip pad.

[0017] Therefore, the non-slip pad arranged on the outer circumferential ring of the double rim can prevent the device from deviating from the track due to sliding when rolling, and the non-slip pad also has the effect of shock absorption; the material and design of the non-slip pad can be adjusted according to different environments to adapt to different use conditions.

[0018] Optionally, an installation hole is arranged at the center position of the fixed flange to connect the high-energy acoustic beam transducer and the control wedge.

[0019] From the above, the high-energy acoustic beam transducer is directly connected with the control wedge through the mounting hole at the center position, which can ensure the absolute center alignment of the acoustic beam transmission path and avoid energy loss or poor focusing caused by deviation, thereby maximizing the transmission efficiency and effect of the sound wave. The design of the high-energy acoustic beam transducer mounted in the center of the fixed flange helps to balance the weight distribution of the transducer and the control wedge, reduces vibration and unnecessary movement, and maintains stable performance even under long-time continuous operation or high-load operation, prolongs the service life of the device and improves the accuracy of operation.

[0020] Optionally, the two arms are rotatably connected with the shaft cylinder at both ends, and further comprising: a collar is arranged at one end of each arm, and the collar is rotatably connected with the bearing at both ends of the shaft cylinder.

[0021] From the above, the two arms are arranged at both ends of the shaft cylinder, and the same end of each arm is provided with a collar, which is sleeved on the bearing at both ends of the shaft cylinder. Through the structural design of the collar and the bearing, the two arms are rotatably connected with the shaft cylinder, so as to facilitate the rotary control of the device and enhance the flexibility.

[0022] Optionally, the pre-tightening mechanism comprises a bolt and a spring, wherein the bolt passes through the spring to press the control wedge on the mounting plate.

[0023] From the above, the addition of the spring enables the pre-tightening mechanism to adjust the pre-tightening force according to the actual situation, maintain the fastening state of the connection part, and avoid safety hazards or performance degradation caused by looseness. The elastic properties of the spring can effectively absorb and disperse the vibration energy generated during equipment operation, reducing the vibration amplitude transmitted to other components, thereby reducing the noise level of the entire device, improving the stability of operation and the comfort of the environment. Combined with the design of the pre-tightening mechanism of the bolt and the spring, the device can adjust the pre-tightening force, effectively reduce vibration and noise, prolong the service life, simplify installation and maintenance, and improve the adaptability of the device.

[0024] Optionally, the connection between the control wedge and the high-energy acoustic beam transducer is coated with a coupling medium.

[0025] From the above, the coupling medium is used at the connection between the transceiving end of the high-energy acoustic beam transducer and the control wedge, which improves the transmission efficiency of high-energy ultrasonic waves and reduces unnecessary energy consumption.

[0026] Optionally, the support frame is connected with the positioning and control mechanism.

[0027] From the above, the support frame provides a stable base for the positioning and control mechanism, ensuring the stability of the positioning and control mechanism during fine operation. The support frame is designed to be adjustable and rotatable through the bearing, further increasing the flexibility and applicability of the positioning and control mechanism. The stable support of the support frame also helps to accurately control the motion trajectory of the positioning and control mechanism, reducing operation errors.

[0028] The application also provides a long-welded seam wheel-moving stress regulation method, which uses the long-welded seam wheel-moving stress regulation device to regulate the stress at the long-welded seam of a large plate component, and comprises the following steps:

[0029] According to the residual stress distribution condition detected in advance at the long-welded seam, the position of the long-welded seam wheel-moving stress regulation device is adjusted by the positioning regulation mechanism;

[0030] According to the direction of the long-welded seam, the moving track of the positioning regulation mechanism is set;

[0031] The pre-tightening mechanism in the long-welded seam wheel-moving stress regulation device is adjusted to press the regulation wedge against the surface of the long-welded seam;

[0032] According to the residual stress distribution condition and the material and wall thickness of the large plate component, the working parameters of the high-energy acoustic beam transducer are determined;

[0033] According to the working parameters and the moving track, the residual stress concentrated areas of the long-welded seam are regulated;

[0034] The residual stress at the long-welded seam is monitored by an external device, and the regulation process is repeated as needed until the residual stress requirement is met.

[0035] According to the above, the residual stress concentrated areas at the long-welded seam are detected in advance, and the position of the device is positioned accordingly, so that these concentrated areas can be accurately regulated, the stress concentration after welding can be effectively reduced, the formation of cracks can be prevented, and the overall stability and service life of the large plate component can be improved. According to the direction of the long-welded seam, the moving track is set, and according to the residual stress distribution state, the material properties of the component to be measured, and the wall thickness of the component to be measured, the working parameters (such as amplitude, waveform, incident angle, etc.) of the high-energy acoustic beam transducer are adjusted. The pre-tightening mechanism is used to press the regulation wedge, which enhances the regulation efficiency. In combination with the external device, the residual stress at the weld is detected after a predetermined regulation time interval, and when the residual stress meets the standard, the regulation work is completed.

[0036] Optionally, before adjusting the pre-tightening mechanism, a coupling medium is applied to the long-welded seam.

[0037] From the above, the main function of the coupling medium is to eliminate the air gap between the regulating wedge and the long weld surface, because air is a good insulator of sound waves, which will seriously hinder the propagation of ultrasonic waves. After applying the coupling medium, a continuous medium can be formed, so that the high-energy sound beam can be more effectively transmitted from the transducer to the long weld surface, and then into the material interior, improving the transmission efficiency of sound wave energy and the regulation effect. The coupling medium helps to ensure that the high-energy sound beam enters the material interior at a more precise angle and intensity, which helps to improve the regulation accuracy; when adjusting the pre-tightening mechanism, direct contact between the regulating wedge and the long weld surface may cause scratches or wear, and applying the coupling medium can form a protective film between the two, reducing direct friction and protecting the long weld surface from damage, maintaining its original smoothness and integrity.

[0038] In summary, the long weld seam wheel dynamic stress regulation device and method provided by the present application can effectively reduce and homogenize the residual stress at the long weld seam without changing the existing welding process and procedure. The device has a simple structure and is easy to use, enabling convenient, fast and reliable clamping and installation of the high-energy sound beam transducer, and effectively reducing the residual stress at the long weld seam. The device can stably and firmly install the high-energy sound beam transducer on the surface of the large plate member to be processed by adjusting the pre-tightening force of the bolt and spring, so that the ultrasonic energy can be effectively transmitted into the stress concentration area of the long weld seam, achieving reduction and homogenization of the residual stress. The device has a small size and light weight, and can be firmly installed on the surface of the large plate member without causing secondary damage such as indentation and deformation. The device can be used to regulate the residual stress at the long weld seam, and the optimal residual stress reduction and homogenization effect can be achieved by selecting appropriate high-energy ultrasonic waveforms, frequencies, amplitudes and phases according to different materials, thereby improving the regulation accuracy of the residual stress. BRIEF DESCRIPTION OF DRAWINGS

[0039] The various technical features of the present application and the relationship between them will be further described below with reference to the accompanying drawings. The drawings are exemplary, some technical features are not shown in actual proportion, and some technical features in the drawings can be omitted, which are conventional in the technical field to which the present application belongs and are not essential for understanding and implementing the present application, or additional technical features are shown, which are not essential for understanding and implementing the present application. That is, the combination of various technical features shown in the drawings is not used to limit the present application. In addition, the same reference signs refer to the same contents throughout the present application. The specific drawings are as follows:

[0040] Figure 1 is a structural diagram of a long weld seam wheel dynamic stress regulation device in the present application;

[0041] Figure 2 is a structural diagram of a support body in the present application;

[0042] Figure 3 is the installation structure diagram of the collector ring in the present application;

[0043] Figure 4 is the schematic diagram of the control wedge in the present application;

[0044] Figure 5 is the flow chart of a long-welded seam wheel dynamic stress control method in the present application.

[0045] BRIEF DESCRIPTION OF DRAWINGS

[0046] 1 - support body, 101 - wheel rim, 102 - shaft cylinder, 103 - spoke, 104 - mounting plate, 105 - support frame, 1051 - collar, 106 - bearing, 2 - collector ring, 3 - control wedge, 4 - high-energy acoustic beam transducer.

[0047] The specific embodiments of the present application have been shown and described in the foregoing drawings, which will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the scope of protection of the present application can be more clearly defined.

[0049] It should be noted that, in this text, relational terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

[0050] The core of the high-energy ultrasonic residual stress control technology is to tightly connect the high-energy ultrasonic exciter and the control wedge to the residual stress concentration area of the long-welded seam of the large plate component through the coupling medium. This process accurately transmits high-energy ultrasonic waves to the stress concentration area according to the preset standard, effectively reduces and homogenizes the residual stress caused by welding by using the elastic wave energy generated by high-energy ultrasonic waves inside the component, thereby improving the overall performance and service life of the large plate component.

[0051] The technical advantages of the long-welded seam wheel rotating stress regulation device proposed in the application are as follows: first, the original welding process is not changed, the operation is simple, and lossless residual stress regulation is realized; second, the adjustable pre-tightening force ensures effective transmission of ultrasonic energy and realizes precise regulation; third, the device is compact and light, and there is no risk of secondary damage; fourth, ultrasonic parameters are optimized for different materials to improve regulation accuracy.

[0052] In the following, the technical solutions of the application and how the technical solutions of the application solve the above technical problems will be described in detail with specific embodiments. The specific embodiments described below can be combined with each other to form new embodiments. For the same or similar ideas or processes described in one embodiment, they can not be described again in some other embodiments. In the following, the embodiments of the application will be described with reference to the accompanying drawings.

[0053] Embodiments of the long-welded seam wheel rotating stress regulation device

[0054] The application provides a long-welded seam wheel rotating stress regulation device, which comprises a support body 1, a collector ring 2, a regulation wedge 3 and a high-energy acoustic beam transducer 4, wherein:

[0055] The support body 1 is in the shape of a wheel as a whole, and the support body 1 comprises:

[0056] a shaft cylinder 102,

[0057] two parallel arranged double-rim 101 are respectively assembled on both ends of the shaft cylinder 102 through spokes 103,

[0058] a support frame 105 comprising two arms, which are rotationally connected to both ends of the shaft cylinder 102 and located outside the double-rim 101,

[0059] a mounting plate 104, which is a predetermined distance away from the shaft cylinder 102 and is provided around the shaft cylinder 102 with a plurality of mounting plates 104 fixed by the spokes 103;

[0060] the collector ring 2 is sleeved in the middle of the shaft cylinder 102, and the collector ring 2 supplies power for the high-energy acoustic beam transducer 4;

[0061] the regulation wedge 3 is provided with a fixed flange at one end and a regulation curved surface at the other end, and the regulation wedge is provided around the double-rim 101, wherein the curvature of the regulation curved surface is the same as that of the double-rim 101, and the fixed flange is assembled on the through hole of the mounting plate 104, and the receiving end of the high-energy acoustic beam transducer is connected with one end of the fixed flange.

[0062] Specifically, the support body is in the shape of a wheel, and the bearings 106 at both ends of the shaft cylinder 102 are equipped with support frames 105, so that the circular ring formed by the control curved surface of the control wedge and the double rim 101 rolls and controls at the long weld, enhancing the flexibility of the device and enabling it to adapt to the shapes of various components; the support body 1 is provided with a mounting plate 104, which can serve as the boundary between the control wedge 3 and the high-energy acoustic beam transducer 4, that is, the high-energy acoustic beam transducer 4 is assembled between the mounting plate 104 and the shaft cylinder 102, the control wedge 3 is assembled between the mounting plate 104 and the double rim 101, and the mounting plate 104 cooperates with the fixed flange to enable the control curved surface of the control wedge 3 to surround the outside curved surface of the circular ring; the bus ring 2 not only can supply power to the high-energy acoustic beam transducer 4, but also can avoid the winding of the cable of the high-energy acoustic beam transducer 4.

[0063] Figure 1 A specific embodiment of the long-weld wheel dynamic stress control device of the present application is shown. As shown in Figure 1 a large plate component long-weld wheel dynamic stress control device mainly includes a support body 1, a bus ring 2, a control wedge 3, and a high-energy acoustic beam transducer 4.

[0064] Among them, the support body 1 is used to fix the control wedge 3 and is designed with a through hole matched with the control wedge 3 for easy installation and positioning; the bus ring 2 is integrated on the support body 1, which can avoid the winding of the cable of the high-energy acoustic beam transducer 4; the control wedge 3 is connected with the high-energy acoustic beam transducer 4 through a screw rod, and is pressed in the corresponding through hole of the support body 1 through the fixed flange, bolt and spring of the control wedge 3, to ensure close contact. The high-energy acoustic beam transducer 4 can emit transverse and longitudinal waves at the same time, and the amplitude, waveform, frequency and other working parameters can be adjusted. The high-energy acoustic beam transducer 4 can emit high-energy ultrasonic waves through the bus ring 2 to carry out ultrasonic control treatment on the residual stress at the long weld.

[0065] In addition, the bus ring 2 is supplied with power by the ultrasonic power supply, the high-energy acoustic beam transducer controller controls the ultrasonic power supply, the high-energy acoustic beam transducer controller provides a frequency signal for the ultrasonic power supply, controls the opening and closing of the ultrasonic power supply through the frequency signal, and further controls the on-off of the bus ring 2.

[0066] In the above embodiment, the bus ring 2 is installed on the support body 1, the bus ring 2 is in contact with the high-energy acoustic beam transducer 4, the support body 1 has a plurality of screw holes matched with the shape of the control wedge 3 to install the control wedge 3, the control wedge 3 has a screw rod matched with the shape of the high-energy acoustic beam transducer 4 at the center, the screw rod makes the control wedge 3 and the high-energy acoustic beam transducer 4 tightly connected, and the control wedge 3 is located at the receiving and transmitting end of the high-energy acoustic beam transducer 4, and the contact surface between the two is coated with a coupling medium.

[0067] Optionally, the two arms are rotatably connected with the shaft cylinder 102 at both ends, and further comprising: a collar 1051 is arranged at one end of the arm, and the collar 1051 is rotatably connected with the shaft cylinder 102 at both ends through a bearing 106.

[0068] Specifically, the two arms are arranged at both ends of the shaft cylinder 102, and the same end of the two arms is provided with a collar 1051, and the collar 1051 is sleeved on the bearing 106 at both ends of the shaft cylinder 102. Through the structural design of the collar 1051 and the bearing 106, the two arms are rotatably connected with the shaft cylinder 102, so as to facilitate the rotary control of the device and enhance the flexibility. Optionally, the support frame 105 is connected with the positioning control mechanism.

[0069] Optionally, the support frame 105 is connected with the positioning control mechanism.

[0070] Specifically, the support frame 105 provides a stable base for the positioning control mechanism, ensuring the stability of the positioning control mechanism during fine operation; the support frame 105 is designed to be adjustable rotation through the bearing 106, further increasing the flexibility and applicability of the positioning control mechanism; the stable support of the support frame 105 also helps to accurately control the motion trajectory of the positioning control mechanism, reducing operation errors.

[0071] Figure 2 The structure of one specific embodiment of the support body is shown; as shown in the figure, Figure 2 The support body 1 is designed as a wheel as a whole, which is composed of a shaft cylinder 102, a double rim 101, a spoke 103, a support frame 105, a mounting plate 104 and a bearing 106. The shaft cylinder 102 serves as a central shaft, the double rim 101 is assembled at both ends, and the spoke 103 connects the shaft cylinder 102 and the rim 101 to form a stable main frame; the support frame 105 is designed in a U shape, i.e. two arms and a horizontal plate, the collar 1051 at one end of the arm is sleeved on the bearing 106 at both ends of the shaft cylinder 102, and the horizontal plate is connected with the external positioning control mechanism (such as a mechanical arm), which not only provides stable support, but also facilitates the rolling movement of the device at the long weld; the mounting plate 104 is fixed in the middle of the shaft cylinder 102 and the rim 101 through the spoke 103, providing a mounting platform for other components; the addition of the bearing 106 reduces friction and improves the smoothness of the wheel movement. The wheel design facilitates rolling along the long weld to realize continuous operation; the design of the collar 1051 on the support frame 105 improves the stability and flexibility of the device; the bearing 106 reduces friction, prolongs the service life and reduces energy consumption.

[0072] Optionally, the through hole is arranged at the middle position of the mounting plate 104.

[0073] Specifically, a through hole matched with the high-energy acoustic beam transducer 4 is arranged at the middle position of the mounting plate 104, so as to facilitate the fixed connection of the mounting plate 104 with the fixing flange on the regulating wedge 3 through the high-energy acoustic beam transducer 4; the through hole at the middle position provides more flexibility for the fixing flange, which can adjust the position or direction of the fixing flange according to actual needs, adapt to different installation environments and requirements, and enhance the adaptability and configurability of the device.

[0074] In a specific embodiment of the present application, a plurality of screw holes are arranged around the through hole on the mounting plate 104 for fixing the fixing flange on the regulating wedge. By uniformly distributing a plurality of screw holes around the through hole, the fixing flange can be tightly and stably connected to the mounting plate 104 using a corresponding number of screws. Such a design significantly improves the stability and vibration resistance of the entire structure, ensuring that the device is not easily loosened or displaced during operation, prolonging the service life; in addition, each screw hole bears a part of the force, thereby greatly enhancing the overall load-bearing performance; the standardized screw hole layout makes the installation process more standardized and simple, reducing the possibility of installation errors, while also facilitating technicians to quickly complete the assembly work, reducing assembly costs.

[0075] Optionally, the outer circumferential ring of the double-rim is equipped with a non-slip pad.

[0076] Specifically, the non-slip pad arranged around the outer circumference of the double-rim can prevent the device from deviating from the track due to sliding when rolling, and the non-slip pad also has a shock-absorbing effect; the material and design of the non-slip pad can be adjusted according to different environments to adapt to different use conditions. Optionally, an installation hole is arranged at the center position of the fixing flange for connecting the high-energy acoustic beam transducer 4 with the regulating wedge 3.

[0077] Optionally, an installation hole is arranged at the center position of the fixing flange for connecting the high-energy acoustic beam transducer 4 with the regulating wedge 3.

[0078] Specifically, the high-energy acoustic beam transducer 4 is directly connected with the regulating wedge 3 through the installation hole at the center position, which can ensure the absolute center alignment of the sound beam transmission path, avoiding energy loss or poor focusing due to deviation, thereby maximizing the transmission efficiency and effect of sound waves; the design of the fixing flange with the high-energy acoustic beam transducer 4 at the center helps to balance the weight distribution of the high-energy acoustic beam transducer 4 and the regulating wedge 3, reducing vibration and unnecessary movement, even under long-term continuous operation or high-load operation, it can maintain stable performance, prolong the service life of the device and improve the accuracy of the operation.

[0079] In one specific embodiment of the present application, a plurality of screw holes are arranged around the mounting hole on the fixed flange, matching the plurality of screw holes on the mounting plate. By arranging multiple screw holes around the mounting hole of the fixed flange, the mounting plate 104 can be tightly fixed to the fixed flange using a corresponding number of screws. This multi-point fixing method significantly enhances the strength and stability of the connection site, ensuring a good connection state even under high-strength vibration or impact conditions, reducing the risk of loosening. The design of matching screw holes not only significantly enhances the stability of the connection and the durability of the device, but also provides flexibility, precision, and convenience in maintenance. Optionally, the pre-tightening mechanism includes a bolt and a spring, where the bolt passes through the spring to press the regulating wedge 3 tightly against the mounting plate 104. Optionally, the pre-tightening mechanism includes a bolt and a spring, where the bolt passes through the spring to press the regulating wedge 3 tightly against the mounting plate 104.

[0080] Specifically, the addition of the spring allows the pre-tightening mechanism to adjust the pre-tightening force according to actual conditions, maintaining the tightness of the connection site and avoiding safety hazards or performance degradation caused by loosening. The elastic properties of the spring can effectively absorb and disperse the vibration energy generated during equipment operation, reducing the vibration amplitude transmitted to other components, thereby reducing the noise level of the entire device and improving the smoothness of operation and the comfort of the environment. By tightening the bolt, compressing the spring, and adjusting the pre-tightening force, loosening the bolt, and releasing the spring, the device can adjust the pre-tightening force, effectively reduce vibration and noise, prolong service life, simplify installation and maintenance, and improve system adaptability. Optionally, the connection between the regulating wedge and the high-energy acoustic beam transducer is coated with a coupling medium.

[0081] Optionally, the connection between the regulating wedge 3 and the high-energy acoustic beam transducer 4 is coated with a coupling medium.

[0082] Specifically, the connection between the receiving and transmitting ends of the high-energy acoustic beam transducer 4 and the regulating wedge 3 is improved by the coupling medium, improving the transmission efficiency of high-energy ultrasonic waves and reducing unnecessary energy consumption.

[0083] In one specific embodiment of the present application, the adjacent two spokes 103 and the rim 101 form a sector, and the arc length of multiple sectors constitutes the circumference of the rim 101, ensuring that the regulating wedge 3 and the double rim 101 can achieve precise docking during installation without gaps or excessive misalignment, smooth and accurate regulation, which helps to achieve more precise operation control. This is crucial for applications that require precise control of high-energy acoustic beam transmission paths.

[0084] Figure 3The application shows the application of a specific embodiment of the slip ring; the power supply mode of the slip ring is different, but the basic principle is similar, that is, the transmission of power or signal is realized through the sliding conduction of the contact surface. The slip ring 2 is arranged in the middle position of the shaft cylinder 102, and the cables on both sides of the high-energy acoustic beam transducer 4 extend out of the slip ring 2 to realize the sliding contact of the contact surface, thereby providing power supply for the high-energy acoustic beam transducer 4, realizing the continuous supply of energy, ensuring the uninterrupted operation, and avoiding the winding of the cable of the high-energy acoustic beam transducer 4. This power supply mode simplifies the power connection, so that the device does not need to frequently plug and unplug the power cord during the moving operation, thereby improving the operation efficiency and safety.

[0085] In addition, when the slip ring 2 is used, how to manage the auxiliary cables (such as control lines, data lines, etc.) on the slip ring 2 to prevent winding can take the following measures, such as using clips, straps or special wire harness tubes to arrange and fix the surrounding cables to ensure their orderly arrangement and avoid mutual crossing and winding; or designing a reasonable wire path to plan the layout of all cables at the initial installation stage, and arranging the cables along the most direct path without interfering with the rotating parts.

[0086] Figure 4 The application shows the application of a specific embodiment of the regulating wedge; the regulating wedge 3 is assembled on the mounting plate 104 through the fixing flange, and the regulating curved surface is designed to be consistent with the curvature of the double-rim 101, thereby ensuring the close contact with the long weld. The transmitting and receiving ends of the high-energy acoustic beam transducer are connected to the regulating wedge 3 through the through hole in the mounting plate 104.

[0087] In a specific embodiment of the present application, when the device is used, according to the position and direction of the long weld, the supporting body 1 is connected and positioned by the supporting frame 105 to the positioning and regulating mechanism (such as a mechanical arm), and is placed at the position of the long weld, so that the regulating wedge 3 closely contacts with the long weld, and the coupling medium is applied at the position to be regulated, thereby ensuring that the stress concentration area of the long weld closely contacts with the regulating wedge 3 and the high-energy acoustic beam transducer 4 through the coupling medium, and the high-energy ultrasonic waves generated by the high-energy acoustic beam transducer 4 are injected into the regulating wedge 3 through the coupling medium, and the regulating wedge 3 inputs the high-energy ultrasonic waves to the long weld through the coupling medium to reduce and homogenize the residual stress.

[0088]

Embodiment of the long-weld wheel-moving stress regulation method

[0089] Figure 5 The flow chart of the long-weld wheel-moving stress regulation method in the present application.

[0090] The present application also provides a long-weld wheel-moving stress regulation method, which uses the long-weld wheel-moving stress regulation device as described above to regulate the stress of the long weld of a large plate component, which comprises the following steps:

[0091] S101: According to the residual stress distribution condition detected in advance at the long weld, adjust the position of the long weld rotating stress regulation device through the positioning regulation mechanism;

[0092] S102: According to the direction of the long weld, set the moving track of the positioning regulation mechanism;

[0093] S103: Adjust the pre-tightening mechanism in the long weld rotating stress regulation device to press the regulation wedge on the surface of the long weld;

[0094] S104: According to the residual stress distribution condition and the material and wall thickness of the large plate component, determine the working parameters of the high-energy acoustic beam transducer;

[0095] S105: According to the working parameters and the moving track, regulate the stress of the residual stress concentration area of the long weld;

[0096] S106: Monitor the residual stress at the long weld through external equipment, and repeat the regulation process as needed until the residual stress requirement is met.

[0097] Specifically, the residual stress concentration area at the long weld is detected in advance, and the position of the device is located accordingly, which can accurately regulate these concentration areas, effectively reduce the stress concentration after welding, prevent the formation of cracks, and improve the overall stability and service life of the large plate component. According to the direction of the long weld, set the moving track, and according to the residual stress distribution state, the material characteristics of the measured component, and the wall thickness of the measured component, adjust the working parameters (such as amplitude, waveform, incident angle, etc.) of the high-energy acoustic beam transducer; use the pre-tightening mechanism to press the regulation wedge, enhance the regulation efficiency, and combine with the external equipment to detect the residual stress at the weld after a certain preset regulation time. When the detected residual stress meets the standard, the regulation work is completed.

[0098] The device rolls on the long weld for a preset regulation time, then stops working, uses external equipment to detect the residual stress at the long weld, re-determines the stress distribution map, and re-adjusts the position, moving track and working parameters of the device.

[0099] In S101, the residual stress of the weld area is evaluated in advance using external equipment to determine the stress distribution map, identify the stress concentration area and stress peak value.

[0100] In S103, the regulation wedge 3 is tightly attached to the residual stress concentration area at the long weld, the bolt and spring are adjusted, the high-energy acoustic beam transducer 4 and the regulation wedge 3 are pressed on the surface of the long weld with a certain pre-tightening force, and the stable clamping of the device as a whole is realized.

[0101] In S104, according to the physical properties of the large plate component (welding material) such as TA15, BTi-64 and the like, thickness, elastic modulus, Poisson's ratio and the like, the appropriate ultrasonic wave parameters are selected. Because different materials have different absorption, reflection and propagation characteristics of ultrasonic waves, the waveform and amplitude of high-energy ultrasonic waves need to be selected accordingly. Higher amplitude may be required for the more concentrated residual stress area to achieve effective stress reduction, but it is also necessary to avoid too high to cause material damage. The amplitude is related to the focusing ability of high-energy ultrasonic waves, which needs to be adjusted according to actual needs to achieve the established goal. The incident angle of high-energy ultrasonic waves will affect the focusing depth and energy distribution, which needs to be adjusted according to the geometry of the weld and the residual stress depth. Generally, the selection of the incident angle needs to ensure that the high-energy ultrasonic waves can be concentrated in the most concentrated stress area to the greatest extent, and the interference to the surrounding material is reduced. According to the material type, wall thickness and residual stress distribution of the large plate component at the weld, the working parameters of the high-energy acoustic beam transducer 4 are determined, the working parameters are adjusted in the high-energy acoustic beam transducer controller, the control instructions are sent by the upper computer, the high-energy acoustic beam transducer controller receives the control instructions, controls the opening of the ultrasonic power supply, and then the bus ring 2 is powered on. The high-energy acoustic beam transducer 4 is connected to the power supply through the bus ring 2, and emits high-energy ultrasonic waves with the determined working parameters.

[0102] In S105, the high-energy acoustic beam transducer 4 generates high-energy ultrasonic waves through the coupling medium and injects them into the control wedge 3, and the control wedge 3 inputs the high-energy ultrasonic waves through the coupling medium into the long weld stress concentration area. During the operation of the high-energy acoustic beam transducer 4, the mechanical arm also drives the device to move along the pre-set moving track, and controls while moving, improving the working efficiency.

[0103] In S106, the external device detects the residual stress at the long weld to determine whether the residual stress meets the requirements. If the requirements are met, the long weld residual stress reduction and homogenization are completed. If not, repeat steps S101 to S105 until the requirements are met. After the residual stress control work is completed, the device is removed from the surface of the component, and the disassembly is completed.

[0104] Among them, the high-energy ultrasonic wave (i.e. high-energy acoustic beam) reduces and homogenizes the welding residual stress according to the elastic-plastic ultrasonic induction theory and the particle properties of elastic waves. Research and practice have shown that according to the particle energy characteristics of elastic waves, when high-energy ultrasonic waves propagate in the form of particle reciprocating vibration in the material, the focused energy of ultrasonic waves reaches a certain degree, which also plays a role in reducing and dissipating the constraint force between the lattices or particles in the material, thereby changing the residual stress constraint state between the lattices in the material, so as to achieve the purpose of directional and quantitative reduction and homogenization of welding residual stress.

[0105] The high-energy ultrasonic wave has certain sound beam focusing and pointing characteristics, the regulation and control method can simultaneously arrange multiple devices to utilize multiple high-energy sound beam transducers to realize the focusing of multiple high-energy ultrasonic waves in a certain range, the frequency, amplitude, sound beam incidence direction and energy in the focusing area of the high-energy ultrasonic waves such as longitudinal waves, transverse waves, surface waves and guided waves are effectively regulated and controlled, the high-energy ultrasonic wave focusing area is regulated and controlled at a specified position in the component material, so that the purpose of reducing and homogenizing residual stress is achieved without changing the original material lattice texture and mechanical physical characteristics, and meanwhile, the problem of material performance degradation caused by excessive energy in the focusing area (or excessive regulation and control) is prevented.

[0106] Optionally, before adjusting the pre-tightening mechanism, the coupling medium is applied at the long weld seam.

[0107] Specifically, the main function of the coupling medium is to eliminate the air gap between the regulation and control wedge and the surface of the long weld seam, because air is a good insulator of sound waves and will seriously hinder the propagation of ultrasonic waves. After applying the coupling medium, a continuous medium can be formed, so that the high-energy sound beam can be more effectively transmitted from the transducer to the surface of the long weld seam, and then penetrate into the material interior, thereby improving the transmission efficiency of sound wave energy and the regulation and control effect. The coupling medium helps to ensure that the high-energy sound beam enters the material interior at a more accurate angle and intensity, which helps to improve the regulation and control precision; when the pre-tightening mechanism is adjusted, direct contact between the regulation and control wedge and the surface of the long weld seam may cause scratches or wear, and the application of the coupling medium can form a protective film between the two, reducing direct friction, protecting the surface of the long weld seam from damage, and maintaining its original smoothness and integrity.

[0108] In summary, the long weld seam wheel dynamic stress regulation and control device and method provided by the present application has the advantages that without changing the existing welding process and procedure, the device has simple structure and is easy to use, realizes convenient, fast and reliable clamping and installation of the high-energy sound beam transducer, and effectively reduces the residual stress of the long weld seam without damage; through the cooperation of the bolt and the spring, the high-energy sound beam transducer can be stably and firmly installed on the surface of the large plate component to be processed with a certain pre-tightening force, and the pre-tightening force is adjustable, so that the ultrasonic energy can be effectively transmitted into the interior of the stress concentration area of the long weld seam through the transducer, and the reduction and homogenization of the residual stress are realized; the device has small size and light weight, can be firmly installed on the surface of the large plate component without causing secondary damage such as indentation and deformation; when the device is used to regulate and control the residual stress of the long weld seam, appropriate high-energy ultrasonic waveforms, frequencies, amplitudes and phases are selected according to different materials, so that the optimal residual stress reduction and homogenization effect can be achieved, and the regulation and control precision of the residual stress is improved.

[0109] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. If there is a conflict between the definitions of terms in the specification and the patent statutes, the latter shall control. In addition, the mention of any reference herein shall not be construed as an admission that the application is not entitled to antedate such reference by virtue of prior application.

[0110] It is to be understood that the above description is intended to be illustrative, and not restrictive. Many other embodiments will be apparent to those of skill in the art upon reviewing the above description. The scope of the application should, therefore, be determined not with reference to the above description, but instead with reference to the appended claims, along with their full scope of equivalents.

[0111] The above description is intended to enable those skilled in the art to best utilize the application, and is not intended to limit the scope of the application. Various modifications can be made with the aim to employ the principles of the application in other implementations and embodiments, and the exercise of the principles of the application illustrated and described herein makes the application apparent to those skilled in the art. Accordingly, the patent is not intended to limit the scope of the application to be literally described, but rather what is claimed is intended to be the widest scope consistent with the principles of the application.

Claims

1. A long weld seam rotating stress regulation device, comprising a support body, a busbar ring, a regulating wedge, and a high-energy acoustic beam transducer, characterized in that: The support body is generally wheel-shaped, and the support body includes: Shaft tube, The two wheel rims are arranged in parallel and are respectively assembled to both ends of the shaft cylinder via spokes. The support frame includes two arms, which are rotatably connected to both ends of the shaft cylinder and located on the outside of the double wheel rims. Mounting plates are provided at a predetermined distance from the shaft cylinder, and multiple mounting plates are arranged around the shaft cylinder. The mounting plates are fixed by the wheel spokes. The busbar ring is sleeved in the middle of the shaft cylinder, and the busbar ring supplies power to the high-energy acoustic beam transducer; The regulating wedge has a fixed flange at one end and an regulating curved surface at the other end. The regulating wedge is arranged around the double wheel ring. The curvature of the regulating curved surface is the same as that of the double wheel ring. The fixed flange is fitted onto the through hole of the mounting plate. The transceiver end of the high-energy sound beam transducer is connected to one end of the fixed flange.

2. The long weld seam rotating stress control device according to claim 1, characterized in that, The through hole is located at the middle position of the mounting plate.

3. The long weld seam rotating stress control device according to claim 2, characterized in that, The outer circumference of the dual wheel rims is equipped with anti-slip pads.

4. The long weld seam rotating stress control device according to claim 1, characterized in that, A mounting hole is provided at the center of the fixed flange for connecting the high-energy acoustic beam transducer to the control wedge.

5. The long weld seam rotating stress control device according to claim 1, characterized in that, The two arms are rotatably connected to both ends of the shaft cylinder, and further include: One end of the support arm is provided with a collar, which is rotatably connected to both ends of the shaft cylinder via bearings.

6. The long weld seam rotating stress control device according to claim 1, characterized in that, Also includes: A pre-tightening mechanism comprising a bolt and a spring, wherein the bolt passes through the spring to press the regulating wedge against the mounting plate.

7. The long weld seam rotating stress control device according to claim 1, characterized in that, The connection between the control wedge and the high-energy acoustic beam transducer is coated with a coupling medium.

8. The long weld seam rotating stress control device according to claim 1, characterized in that, The support frame is connected to the positioning and control mechanism.

9. A method for controlling stress in long weld seams using a rotating mechanism, characterized in that, Using the long weld seam rotating stress control device according to any one of claims 1-8 to perform stress control at long weld seams of large plate components, the method includes: Based on the residual stress distribution detected in advance at the long weld, the position of the long weld wheel-type stress control device is adjusted by the positioning and control mechanism. The movement trajectory of the positioning and control mechanism is set according to the direction of the long weld. Adjust the pre-tightening mechanism in the long weld seam wheel-type stress control device to press the control wedge block tightly onto the surface of the long weld seam; The operating parameters of the high-energy sound beam transducer are determined based on the residual stress distribution and the material and wall thickness of the large plate-like component. Based on the working parameters and the movement trajectory, stress regulation is performed on the residual stress concentration area of ​​the long weld. The residual stress at the long weld is monitored by external equipment, and the adjustment process is repeated as needed until the residual stress requirement is met.

10. The long weld seam rotating stress control method according to claim 9, characterized in that, Before adjusting the pre-tightening mechanism, apply a coupling medium to the long weld seam.

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