Anti-deformation device applied to component welding and control method of anti-deformation device

Abstract

The application discloses a kind of deformation prevention devices applied to component welding and the control method of deformation prevention device, it is related to welding field, deformation prevention device includes: restraint unit, clamping piece surrounds the part of component to be welded, drive assembly drives clamping piece to move, pressure sensor detects the pressure between clamping piece and component to be welded;Temperature control unit, flow channel plate exchanges heat with component to be welded, temperature sensor detects the temperature of component to be welded;Controller is connected with drive assembly, pressure sensor, drive pump, temperature sensor, flow valve, and according to pressure information control drive assembly drive clamping piece to adjust the pressure between clamping piece and component to be welded, and according to temperature information control the rotating speed of drive pump and / or the opening of flow valve to adjust the medium flow in heat exchange circuit, whereby, deformation prevention device can actively compensate welding stress, accurately and flexibly control cooling rate, to effectively reduce the risk of deformation of component to be welded, improve welding quality.

Description

Technical Field

[0001] This invention relates to the field of welding, and in particular to an anti-deformation device and a control method for the anti-deformation device used in component welding. Background Technology

[0002] In related technologies, controlling welding deformation mainly relies on two passive methods: "strong rigid restraint" and "uniform cooling." However, "strong rigid restraint" cannot eliminate internal stress, and the component to be welded faces the risk of stress rebound leading to secondary deformation after the restraint is released. Furthermore, excessive rigid restraint can easily induce cold cracks in the weld. "Uniform cooling" usually employs water cooling, but the cooling rate is uncontrollable and difficult to adapt to the cooling rate requirements of the welding process. Moreover, uniform and strong cooling can introduce new thermal stress, leading to component deformation. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide an anti-deformation device for component welding, which can actively compensate for welding stress, precisely and flexibly control the cooling path, reduce the risk of deformation of the components to be welded, and improve the welding quality of the components to be welded.

[0004] The present invention further proposes a control method for an anti-deformation device.

[0005] According to the present invention, an anti-deformation device for component welding includes: a restraint unit, the restraint unit comprising: a drive assembly, a clamping member, and a pressure sensor, the clamping member being configured to surround a portion of the component to be welded, the drive assembly being configured to drive the clamping member to move, and the pressure sensor being disposed on the clamping member and configured to detect the pressure between the clamping member and the component to be welded; a temperature control unit, the temperature control unit comprising: a flow channel plate, a drive pump, a heat exchanger, a temperature sensor, and a flow valve, the flow channel plate defining a heat exchange flow path, the heat exchange flow path, the drive pump, and the heat exchanger forming a heat exchange loop, the flow valve being disposed on the heat exchange loop, the flow channel plate being configured to contact the component to be welded for heat exchange, and the temperature sensor being configured to detect the temperature of the component to be welded; and a controller, the controller being communicatively connected to the drive assembly, the pressure sensor, the drive pump, the temperature sensor, and the flow valve, the controller being configured to control the drive assembly to drive the clamping member to move based on the pressure information from the pressure sensor to adjust the pressure between the clamping member and the component to be welded, and being configured to control the rotational speed of the drive pump and / or the opening degree of the flow valve based on the temperature information from the temperature sensor to adjust the flow rate of the medium in the heat exchange loop.

[0006] The anti-deformation device for component welding according to the present invention can actively compensate for welding stress and precisely and flexibly control the cooling rate, thereby effectively reducing the risk of deformation of the components to be welded and improving the welding quality.

[0007] In some examples of the present invention, the clamping member includes a first clamping portion and two second clamping portions. Along a first direction, the two second clamping portions are connected to the same end of the first clamping portion, and the two second clamping portions are spaced apart along a second direction, wherein the first direction is perpendicular to the second direction.

[0008] In some examples of the present invention, the first clamping part and at least one second clamping part are provided with the pressure sensor.

[0009] In some examples of the present invention, the restraint unit includes: a first mounting base and a first movable base, the driving component includes: a first driving member, the first movable base is movably disposed on the first mounting base along a first direction, the clamping member is disposed on the first movable base, and the first driving member is configured to drive the first movable base to move along the first direction.

[0010] In some examples of the present invention, the restraint unit further includes: a second movable seat, and the driving assembly further includes: a second driving member, wherein the second movable seat is movably disposed on the first mounting seat along a second direction, the first movable seat is movably disposed on the second movable seat along the first direction, the first driving member is disposed on the second movable seat, and the second driving member is configured to drive the second movable seat to move along the second direction, wherein the first direction is perpendicular to the second direction.

[0011] In some examples of the present invention, the component to be welded includes: a first sub-component and a second sub-component passing through the first sub-component; the flow channel plate is formed with an installation notch, the flow channel plate is configured to be sleeved on the second sub-component, and the heat exchange flow path surrounds the installation notch.

[0012] In some examples of the present invention, the heat exchange flow path includes: an inlet branch, an outlet branch, and a plurality of sequentially nested connecting branches, wherein the plurality of connecting branches are connected between the inlet branch and the outlet branch, and the connecting branches surround the mounting notch.

[0013] In some examples of the present invention, there are multiple flow channels, and the heat exchange flow paths of the multiple flow channels are connected in series, or the heat exchange flow paths of the multiple flow channels are connected in parallel, and there are multiple flow valves, with each of the multiple flow valves corresponding to one of the multiple heat exchange flow paths.

[0014] In some examples of the present invention, the anti-deformation device further includes: a base having a plurality of mounting holes, wherein the restraint unit, the temperature control unit, and the controller are detachably fitted with some of the mounting holes.

[0015] According to the control method of the deformation device of the present invention, the above-mentioned anti-deformation device applied to component welding is included. The control method includes: during the welding process, controlling the drive assembly to drive the clamping member to move according to a preset ideal restraint force curve, so that the pressure between the clamping member and the component to be welded tracks the ideal restraint force curve, and controlling the rotation speed of the drive pump and / or the opening degree of the flow valve according to a preset target cooling curve, so that the temperature of the component to be welded follows the target cooling curve; after welding is completed, controlling the rotation speed of the drive pump to gradually decrease until the drive pump stops working, and then controlling the clamping member to gradually move away from the component to be welded until the clamping member separates from the component to be welded.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the anti-deformation device and the component to be welded according to an embodiment of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the anti-deformation device and the second sub-component according to an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of the flow channel plate according to an embodiment of the present invention;

[0021] Figure 4 This is a flowchart of the control method for the anti-deformation device according to an embodiment of the present invention.

[0022] Figure label:

[0023] Anti-deformation device 100;

[0024] Restraint unit 1; drive assembly 11; first drive element 111; second drive element 112;

[0025] Clamping member 12; First clamping part 121; Second clamping part 122;

[0026] Pressure sensor 13; First mounting base 14; First movable base 15; Second movable base 16;

[0027] Temperature control unit 2; flow channel plate 21; heat exchange flow path 211;

[0028] Inlet branch 2111; Outlet branch 2112; Connecting branch 2113; Installation notch 2114;

[0029] Drive pump 22; heat exchanger 23; temperature sensor 24; flow valve 25;

[0030] Controller 3;

[0031] Base 4; Mounting hole 41;

[0032] Second mounting base 5; mounting post 6; limiting angle iron 7;

[0033] Component to be welded 200; First sub-component 201; Second sub-component 202; Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The following is for reference. Figures 1-3 Describing an anti-deformation device 100 for component welding according to an embodiment of the present invention.

[0036] like Figures 1-2 As shown, the anti-deformation device 100 for component welding according to the present invention includes: a restraint unit 1, which includes a drive assembly 11, a clamping member 12, and a pressure sensor 13. The clamping member 12 is configured to surround a portion of the component 200 to be welded. The drive assembly 11 is configured to drive the clamping member 12 to move. The pressure sensor 13 is disposed on the clamping member 12 and configured to detect the pressure between the clamping member 12 and the component 200 to be welded. A temperature control unit 2 includes a flow channel plate 21, a drive pump 22, a heat exchanger 23, a temperature sensor 24, and a flow valve 25. The flow channel plate 21 defines a heat exchange flow path 211. The heat exchange flow path 211, the drive pump 22, and the heat exchanger 23 form a heat exchange... The heat exchange circuit includes a flow valve 25, a flow channel plate 21 configured to contact the component 200 to be welded for heat exchange, and a temperature sensor 24 configured to detect the temperature of the component 200. A controller 3 is communicatively connected to the drive assembly 11, pressure sensor 13, drive pump 22, temperature sensor 24, and flow valve 25. The controller 3 is configured to control the drive assembly 11 to move the clamping member 12 based on the pressure information from the pressure sensor 13 to adjust the pressure between the clamping member 12 and the component 200 to be welded, and is also configured to control the speed of the drive pump 22 and / or the opening of the flow valve 25 based on the temperature information from the temperature sensor 24 to adjust the flow rate of the medium in the heat exchange circuit.

[0037] The anti-deformation device 100 includes a restraint unit 1, a temperature control unit 2, and a controller 3. The restraint unit 1 includes a drive assembly 11, a clamping member 12, and a pressure sensor 13. The clamping member 12 is configured to surround the part to be welded 200, allowing it to actively counteract welding stress and reduce the risk of deformation of the part to be welded 200. In some embodiments of this application, the drive assembly 11 can be configured as a motor. In some embodiments of this application, the drive assembly 11 can be configured as a cylinder. The drive assembly 11 can drive the clamping member 12 to move, dynamically adjusting the output force of the clamping member 12 to "shaving off peaks and filling valleys" of transient thermal stress during welding, actively counteracting the welding stress of the part to be welded 200, and maintaining the welding stress in a low-stress state. Pressure sensor 13 is disposed on clamping member 12. As some embodiments of this application, the surface of clamping member 12 may have openings, and pressure sensor 13 may be disposed at the openings on the surface of clamping member 12. Pressure sensor 13 can detect the pressure between clamping member 12 and the part 200 to be welded.

[0038] The temperature control unit 2 includes a flow channel plate 21, a drive pump 22, a heat exchanger 23, a temperature sensor 24, and a flow valve 25. The flow channel plate 21 defines a heat exchange flow path 211. The heat exchange flow path 211, the drive pump 22, and the heat exchanger 23 form a heat exchange loop. The drive pump 22 can drive the heat exchange medium to flow between the heat exchange flow path 211 and the heat exchanger 23. The flow valve 25 is located in the heat exchange loop. As some embodiments of this application, the flow valve 25 can be located between the heat exchange flow path 211 and the heat exchanger 23. As some embodiments of this application, the flow valve 25 can be located in the heat exchanger 23 to regulate the flow rate of the heat exchange medium.

[0039] As some embodiments of this application, the flow channel plate 21 may be constructed as a copper plate. As some embodiments of this application, the flow channel plate 21 may be constructed as a stainless steel plate. Along the height direction of the anti-deformation device 100, that is... Figure 1 In the Z direction, the flow channel plate 21 is set to correspond with the component 200 to be welded. Furthermore, the flow channel plate 21 is set to correspond with key parts such as the weld seam and heat-affected zone of the component 200 to be welded, so that the flow channel plate 21 can contact the component 200 to be welded for heat exchange. The temperature sensor 24 can detect the temperature of the component 200 to be welded, thereby detecting the temperature of the component 200 to be welded in real time.

[0040] The controller 3 is communicatively connected to the drive assembly 11, pressure sensor 13, drive pump 22, temperature sensor 24, and flow valve 25. The controller 3 can control the drive assembly 11 to move the clamping member 12 based on the pressure information from the pressure sensor 13, thereby adjusting the pressure between the clamping member 12 and the part to be welded 200 and actively counteracting welding stress. In some embodiments of this application, the controller 3 can control the rotational speed of the drive pump 22 based on the temperature information from the temperature sensor 24 to adjust the flow rate of the medium in the heat exchange circuit. In some embodiments of this application, the controller 3 can control the opening degree of the flow valve 25 based on the temperature information from the temperature sensor 24 to adjust the flow rate of the medium in the heat exchange circuit. In some embodiments of this application, the controller 3 can control the rotational speed of the drive pump 22 and the opening degree of the flow valve 25 based on the temperature information from the temperature sensor 24 to adjust the flow rate of the medium in the heat exchange circuit, thereby precisely and flexibly controlling the cooling rate.

[0041] Specifically, the clamping member 12 surrounds the part 200 to be welded, and the flow channel plate 21 is correspondingly set with the weld seam, heat-affected zone, and other key parts of the part 200 to be welded. Welding is performed on the part 200 to be welded. During the welding process, the pressure sensor 13 and the temperature sensor 24 detect the pressure between the clamping member 12 and the part 200 to be welded and the temperature of the part 200 to be welded, respectively. The controller 3 receives the pressure and temperature information and controls the drive assembly 11 to drive the clamping member 12 to move according to the pressure information, so as to adjust the pressure between the clamping member 12 and the part 200 to be welded and actively counteract welding stress. It can also control the speed of the drive pump 22 and the opening of the flow valve 25 according to the temperature information to adjust the flow rate of the medium in the heat exchange circuit, thereby precisely and flexibly controlling the cooling rate.

[0042] Therefore, the anti-deformation device 100 of this application can actively compensate for welding stress and precisely and flexibly control the cooling rate, thereby effectively reducing the risk of deformation of the component 200 to be welded and improving the welding quality.

[0043] In some examples of the present invention, such as Figure 1 As shown, the clamping member 12 includes a first clamping part 121 and two second clamping parts 122. Along the first direction, the two second clamping parts 122 are connected to the same end of the first clamping part 121, and the two second clamping parts 122 are spaced apart along the second direction. The first direction is perpendicular to the second direction.

[0044] Among them, along the first direction, that is Figure 1 In the X direction, the two second clamping parts 122 are connected to the same end of the first clamping part 121, and along the second direction, i.e. Figure 1In the Y direction, the two second clamping parts 122 are spaced apart. This arrangement allows for a reasonable structural design of the clamping member 12, facilitating the placement of a portion of the component 200 to be welded between the two second clamping parts 122. This achieves the effect of the clamping member 12 surrounding a portion of the component 200 to be welded. It also facilitates the pressure sensor 13's accurate detection of the pressure between the clamping member 12 and the component 200 to be welded. Consequently, the controller 3 can control the drive assembly 11 to move the clamping member 12 based on the received pressure information, thereby adjusting the pressure between the clamping member 12 and the component 200 to be welded, and thus actively counteracting welding stress. The first direction is perpendicular to the second direction; that is, the X direction is perpendicular to the Y direction.

[0045] It should be noted that the verticality described in this article refers to the verticality that can be achieved in industry, rather than absolute verticality in a mathematical sense. Therefore, with a certain error (e.g., 88° to 92°), the verticality proposed in this application can be considered to have been achieved.

[0046] In some examples of the present invention, such as Figure 1 As shown, the first clamping part 121 and at least one second clamping part 122 are each equipped with a pressure sensor 13.

[0047] In some embodiments of this application, both the first clamping part 121 and the second clamping part 122 are equipped with pressure sensors 13. The pressure sensor 13 of the first clamping part 121 can detect the pressure between the clamping member 12 and the component 200 to be welded along a first direction, while the pressure sensor 13 of the second clamping part 122 can detect the pressure between the clamping member 12 and the component 200 to be welded along a second direction. By equipping the first clamping part 121 and at least one second clamping part 122 with pressure sensors 13, the arrangement of the pressure sensors 13 can be optimized. This allows the controller 3 to flexibly control the drive assembly 11 to drive the clamping member 12 to move along the first or second direction based on the pressure information detected by different pressure sensors 13. This effectively maintains the stress between the clamping member 12 and the component 200 to be welded in different directions at a low stress level, reducing the risk of deformation of the component 200 to be welded and improving welding quality.

[0048] In some examples of the present invention, such as Figure 1 As shown, the restraint unit 1 includes: a first mounting base 14 and a first movable base 15. The drive assembly 11 includes: a first drive member 111. The first movable base 15 is movably disposed on the first mounting base 14 along a first direction. The clamping member 12 is disposed on the first movable base 15. The first drive member 111 is configured to drive the first movable base 15 to move along the first direction.

[0049] Among them, along the first direction, that is Figure 1 In the X direction, the first movable seat 15 is movably disposed on the first mounting base 14. In some embodiments of this application, the first mounting base 14 has a slide rail extending along the first direction. The first movable seat 15 has a slider, and the slide rail and slider are slidably engaged, allowing the first movable seat 15 to be movably disposed on the first mounting base 14 along the first direction. A clamping member 12 is disposed on the first movable seat 15. In some embodiments of this application, the clamping member 12 and the first movable seat 15 are welded together. In some embodiments of this application, the clamping member 12 and the first movable seat 15 are integrally formed. The first driving member 111 drives the first movable seat 15 to move along the first direction, thereby causing the clamping member 12 to move along the first direction. This helps to counteract the stress along the first direction between the clamping member 12 and the component 200 to be welded, reducing the risk of deformation of the component 200 to be welded along the first direction.

[0050] In some examples of the present invention, such as Figure 1 As shown, the restraint unit 1 further includes a second movable seat 16, and the drive assembly 11 further includes a second drive member 112. The second movable seat 16 is movably disposed on the first mounting base 14 along a second direction, the first movable seat 15 is movably disposed on the second movable seat 16 along a first direction, the first drive member 111 is disposed on the second movable seat 16, and the second drive member 112 is configured to drive the second movable seat 16 to move along the second direction, wherein the first direction is perpendicular to the second direction.

[0051] Among them, along the second direction, that is Figure 1 In the Y direction, the second movable seat 16 is movably disposed on the first mounting base 14. As in some embodiments of this application, the first mounting base 14 has a slide rail extending along the first direction. The second movable seat 16 has a slider, and the slide rail and slider are slidably engaged, so that the second movable seat 16 is movably disposed on the first mounting base 14 along the second direction. Along the first direction, i.e. Figure 1 In the X direction, the first movable seat 15 is movably disposed on the second movable seat 16. As in some embodiments of this application, the second movable seat 16 has a slide rail that extends along the first direction. The first movable seat 15 has a slider, and the slide rail and the slider slide in a sliding engagement so that the first movable seat 15 is movably disposed on the second movable seat 16 along the first direction.

[0052] The first driving member 111 is disposed on the second movable seat 16, and the second driving member 112 is configured to drive the second movable seat 16 to move along the second direction, thereby causing the clamping member 12 to move along the second direction. This helps to counteract the stress between the clamping member 12 and the part to be welded 200 along the second direction, and reduces the risk of deformation of the part to be welded 200 along the second direction. The first direction is perpendicular to the second direction, that is, the X direction is perpendicular to the Y direction.

[0053] Therefore, the controller 3 can flexibly control the first driving member 111 or the second driving member 112 to drive the clamping member 12 to move along the first direction or the second direction according to the pressure information detected by the different pressure sensors 13 in different directions, thereby keeping the stress between the clamping member 12 and the part to be welded 200 in a low stress state, reducing the risk of deformation of the part to be welded 200 and improving the welding quality.

[0054] In some examples of the present invention, such as Figure 1 and Figure 1 As shown, the component to be welded 200 includes: a first sub-component 201 and a second sub-component 202 passing through the first sub-component 201; the flow channel plate 21 has an installation notch 2114, the flow channel plate 21 is configured to be sleeved on the second sub-component 202, and the heat exchange flow path 211 surrounds the installation notch 2114.

[0055] The second sub-component 202 passes through the first sub-component 201, and the second sub-component 202 can pass through the mounting notch 2114 so that the flow channel plate 21 is fitted onto the second sub-component 202, and the heat exchange flow path 211 surrounds the mounting notch 2114. This arrangement makes the structure of the flow channel plate 21 reasonable. When welding the first sub-component 201 and the second sub-component 202, it is beneficial for the heat exchange flow path 211 to surround the weld, thereby cooling the component 200 to be welded, effectively reducing the risk of deformation of the component 200 to be welded, and improving the welding quality.

[0056] As some embodiments of this application, the flow channel plate 21 may be attached to the lower surface of the first sub-component 201.

[0057] In some examples of the present invention, such as Figure 3 As shown, the heat exchange flow path 211 includes: an inlet branch 2111, an outlet branch 2112, and a plurality of sequentially nested connecting branches 2113. The plurality of connecting branches 2113 are all connected between the inlet branch 2111 and the outlet branch 2112, and the connecting branches 2113 surround the installation notch 2114.

[0058] In some embodiments of this application, there are two connecting branches 2113. In some embodiments of this application, there are three connecting branches 2113. The heat exchange medium flows into the connecting branches 2113 from the inlet branch 2111. The connecting branches 2113 surround the mounting notch 2114, which is beneficial for the connecting branches 2113 to surround the weld, thereby cooling the component 200 to be welded, effectively reducing the risk of deformation of the component 200 to be welded, and improving the welding quality. After heat exchange with the component 200 to be welded, the heat exchange medium flows out from the outlet branch 2112, realizing the heat exchange circulation of the heat exchange medium.

[0059] In some examples of the present invention, such as Figure 3As shown, there are multiple flow channels 21, and the heat exchange flow paths 211 of the multiple flow channels 21 are connected in series, or the heat exchange flow paths 211 of the multiple flow channels 21 are connected in parallel, and there are multiple flow valves 25, with each flow valve 25 corresponding to one of the multiple heat exchange flow paths 211.

[0060] In this application, there are multiple flow channel plates 21. In some embodiments, there are two flow channel plates 21. In some embodiments, there are three flow channel plates 21. In some embodiments, the number of flow channel plates 21 can correspond one-to-one with the number of second sub-components 202. That is, one flow channel plate 21 corresponds to one second sub-component 202. Furthermore, the heat exchange flow paths 211 of multiple flow channel plates 21 are connected in series or in parallel. This arrangement makes the number and arrangement of flow channel plates 21 reasonable, which is beneficial to improving the adaptability of the anti-deformation device 100. It can also effectively cool the welding parts of different second sub-components 202, further reducing the risk of deformation of the component 200 to be welded.

[0061] There are multiple flow valves 25. In some embodiments of this application, there are two flow valves 25. In some embodiments of this application, there are three flow valves 25. The multiple flow valves 25 correspond one-to-one with multiple heat exchange flow paths 211. That is, one flow valve 25 corresponds to one heat exchange flow path 211. By making multiple flow valves 25 correspond one-to-one with multiple heat exchange flow paths 211, the flow rate of the heat exchange medium in the corresponding heat exchange flow path 211 can be controlled by the corresponding flow valve 25. This is beneficial for precise and flexible control of the cooling rate, thereby further reducing the risk of deformation of the component 200 to be welded and further improving the welding quality.

[0062] In some examples of the present invention, such as Figure 2 and Figure 1 As shown, the anti-deformation device 100 also includes: a base 4, which has multiple mounting holes 41, and the restraint unit 1, the temperature control unit 2, and the controller 3 are all detachably fitted with some of the mounting holes 41.

[0063] The base 4 has multiple mounting holes 41. In some embodiments of this application, the base 4 has fifty mounting holes 41. In some embodiments of this application, the base 4 has one hundred mounting holes 41. The restraint unit 1, the temperature control unit 2, and the controller 3 are all detachably assembled with some of the mounting holes 41. In some embodiments of this application, the mounting holes 41 have internal threads, and the restraint unit 1, the temperature control unit 2, and the controller 3 can all be bolted to some of the mounting holes 41, thereby achieving the effect of detachable assembly of the restraint unit 1, the temperature control unit 2, and the controller 3 with some of the mounting holes 41. This arrangement facilitates changing the position of the restraint unit 1, the temperature control unit 2, and the controller 3, thereby adapting to different components 200 to be welded.

[0064] As some embodiments of this application, such as Figure 2 As shown, the anti-deformation device 100 also includes a second mounting base 5, which is detachably fitted with a portion of the mounting hole 41. The drive pump 22 and the heat exchanger 23 are mounted on the second mounting base 5 so that the drive pump 22 and the heat exchanger 23 are fixed to the base 4, thereby improving the stability of the drive pump 22 and the heat exchanger 23.

[0065] As some embodiments of this application, such as Figure 2 and Figure 1 As shown, the anti-deformation device 100 also includes a mounting post 6, which is detachably fitted with a portion of the mounting holes 41. The flow channel plate 21 is mounted on the mounting post 6 so that the flow channel plate 21 is fixed to the base 4 by the mounting post 6. This arrangement allows the flow channel plate 21 to have a certain height, which is beneficial for the flow channel plate 21 to contact the part 200 to be welded, thereby improving the heat exchange effect.

[0066] As some embodiments of this application, such as Figure 2 and Figure 1 As shown, the anti-deformation device 100 also includes limiting angle irons 7. In some embodiments of this application, there are eight limiting angle irons 7. In some embodiments of this application, there are sixteen limiting angle irons 7. The limiting angle irons 7 can support and limit the flow channel plate 21, thereby further improving the stability of the flow channel plate 21.

[0067] like Figure 2 Figure 4 As shown, the control method for the deformation device according to the present invention includes the above-mentioned anti-deformation device applied to component welding. The control method includes: during the welding process, controlling the drive assembly to drive the clamping member to move according to a preset ideal restraint force curve, so that the pressure between the clamping member and the component to be welded tracks the ideal restraint force curve, and controlling the rotation speed of the drive pump and / or the opening of the flow valve according to a preset target cooling curve, so that the temperature and pressure of the component to be welded reaches the target cooling curve; after welding is completed, controlling the rotation speed of the drive pump to gradually decrease until the drive pump stops working, and then controlling the clamping member to gradually move away from the component to be welded until the clamping member separates from the component to be welded.

[0068] As some embodiments of this application, a digital twin model of the component to be welded can be established before welding. Finite element simulation can be used to predict its welding deformation behavior and stress distribution, thereby formulating optimal restraint and temperature control strategies. On the base, the restraint unit and temperature control unit are installed and adjusted according to the restraint and temperature control strategies to ensure good contact between the restraint unit and the component to be welded. The restraint unit is then activated, applying a preset anti-deformation force based on simulation results to the component to be welded.

[0069] S1. During the welding process, the drive assembly is controlled to drive the clamping part to move according to the preset ideal restraint force curve, so that the pressure between the clamping part and the part to be welded tracks the ideal restraint force curve. The speed of the drive pump and / or the opening of the flow valve are controlled according to the preset target cooling curve, so that the temperature of the part to be welded follows the target cooling curve.

[0070] The controller has a pre-stored ideal restraint force curve based on the welding process. The pressure sensor monitors the feedback of the part to be welded to the pressure in real time. The controller controls the drive component to move the clamping part according to the pressure information of the pressure sensor to adjust the pressure between the clamping part and the part to be welded, so that the pressure between the clamping part and the part to be welded tracks the preset ideal restraint force curve and actively counteracts the welding stress.

[0071] The controller also has a pre-stored target cooling curve. The temperature sensor monitors the temperature information of the parts to be welded in real time. The controller controls the speed of the drive pump and / or the opening of the flow valve according to the temperature information of the temperature sensor, so that the temperature of the parts to be welded follows the target cooling curve, achieving the effect of precise control of the cooling rate. This allows for on-demand cooling of the parts to be welded, thereby effectively reducing the risk of deformation of the parts to be welded and improving the welding quality.

[0072] S2. After welding is completed, control the speed of the drive pump to gradually decrease until the drive pump stops working, and then control the clamping part to gradually move away from the part to be welded until the clamping part separates from the part to be welded.

[0073] After welding, the speed of the drive pump is gradually reduced until it stops working, promoting the relaxation and homogenization of residual stress. Then, the clamping parts are gradually moved away from the parts to be welded, thereby slowly relieving the stress on the parts to be welded until the clamping parts separate from the parts to be welded.

[0074] This allows for the proactive counteraction of welding stress and precise, flexible control of the cooling rate, thereby effectively reducing the risk of deformation of the parts to be welded and improving welding quality.

[0075] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0076] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0077] In the description of this invention, "a plurality of" means two or more.

[0078] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0079] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A deformation prevention device applied to component welding, characterized in that, include: A restraint unit, comprising: a drive assembly, a clamping member, and a pressure sensor, wherein the clamping member is configured to surround a portion of a component to be welded, the drive assembly is configured to drive the clamping member to move, and the pressure sensor is disposed on the clamping member and configured to detect the pressure between the clamping member and the component to be welded; A temperature control unit, comprising: a flow channel plate, a drive pump, a heat exchanger, a temperature sensor, and a flow valve, wherein the flow channel plate defines a heat exchange flow path, the heat exchange flow path, the drive pump, and the heat exchanger form a heat exchange loop, the flow valve is disposed in the heat exchange loop, the flow channel plate is configured to contact the component to be welded for heat exchange, and the temperature sensor is configured to detect the temperature of the component to be welded; The controller is communicatively connected to the drive assembly, the pressure sensor, the drive pump, the temperature sensor, and the flow valve. The controller is configured to control the drive assembly to move the clamping member according to the pressure information from the pressure sensor to adjust the pressure between the clamping member and the part to be welded, and is also configured to control the rotational speed of the drive pump and / or the opening degree of the flow valve according to the temperature information from the temperature sensor to adjust the flow rate of the medium in the heat exchange circuit. The clamping member includes a first clamping part and two second clamping parts. Along a first direction, the two second clamping parts are connected to the same end of the first clamping part, and the two second clamping parts are spaced apart along a second direction. A portion of the component to be welded is disposed between the two second clamping parts. The first direction is perpendicular to the second direction. The component to be welded includes: a first sub-component and a second sub-component passing through the first sub-component; the flow channel plate has an installation notch, the flow channel plate is configured to be sleeved on the second sub-component, and the heat exchange flow path surrounds the installation notch.

2. The anti-deformation device for component welding according to claim 1, characterized in that, The pressure sensor is provided in both the first clamping part and at least one of the second clamping parts.

3. The anti-deformation device for component welding according to claim 1, characterized in that, The restraint unit includes: a first mounting base and a first movable base. The driving component includes: a first driving member. The first movable base is movably disposed on the first mounting base along a first direction. The clamping member is disposed on the first movable base. The first driving member is configured to drive the first movable base to move along the first direction.

4. The anti-deformation device for component welding according to claim 3, characterized in that, The restraint unit further includes a second movable seat, and the driving assembly further includes a second driving member. The second movable seat is movably disposed on the first mounting seat along a second direction, the first movable seat is movably disposed on the second movable seat along the first direction, the first driving member is disposed on the second movable seat, and the second driving member is configured to drive the second movable seat to move along the second direction, wherein the first direction is perpendicular to the second direction.

5. The anti-deformation device for component welding according to claim 1, characterized in that, The heat exchange flow path includes: an inlet branch, an outlet branch, and multiple connecting branches arranged sequentially. The multiple connecting branches are all connected between the inlet branch and the outlet branch, and the connecting branches surround the installation notch.

6. The anti-deformation device for component welding according to claim 1, characterized in that, There are multiple flow channels, and the heat exchange flow paths of the multiple flow channels are connected in series or in parallel. There are also multiple flow valves, and each of the multiple flow valves corresponds to one of the multiple heat exchange flow paths.

7. The anti-deformation device for component welding according to any one of claims 1-6, characterized in that, Also includes: The base has multiple mounting holes, and the restraint unit, the temperature control unit, and the controller are all detachably assembled with some of the mounting holes.

8. A control method for an anti-deformation device, characterized in that, The anti-deformation device includes an anti-deformation device applied to component welding according to any one of claims 1-7, and the control method includes: During the welding process, the drive assembly is controlled to drive the clamping member to move according to the preset ideal restraint force curve, so that the pressure between the clamping member and the part to be welded tracks the ideal restraint force curve. The speed of the drive pump and / or the opening of the flow valve are controlled according to the preset target cooling curve, so that the temperature of the part to be welded follows the target cooling curve. After welding is completed, the speed of the drive pump is gradually reduced until the drive pump stops working. Then, the clamping member is gradually moved away from the part to be welded until the clamping member separates from the part to be welded.

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