Cold and heat source integrated welding machine device for regulating and controlling welding deformation of sheet metal component

Abstract

The cold and heat source integrated welding device comprises a platform frame, a welding module, a heating module, a refrigerating module and a control module, a sliding flat plate is arranged on the platform frame, and supporting legs are arranged on the lower side of the middle of the platform frame; a supporting fixing frame which is used for supporting the heating module and can slide up and down is arranged on the supporting legs, and a gantry fixing frame used for fixing the welding module and the refrigerating module is arranged on one side of the center of the platform frame. The welding device is suitable for thin plate metal structure parts with different sizes and shapes, a rail sliding control system is adopted to support a welding test piece to move downwards at a preset speed on a platform, automatic operation of welding, an auxiliary heat source and an auxiliary cold source is achieved, parameters are set, welding operation can be automatically conducted after all equipment runs, and the welding efficiency is improved. The device is suitable for long-distance welding operation, can be compatible with various welding devices, gets rid of original devices needing manual welding, and meanwhile can be compatible with the devices for use.

Description

TECHNICAL FIELD

[0001] The application relates to a cold-heat source integrated welding device for regulating welding deformation of a sheet metal component, and belongs to the technical field of welding deformation regulation of metal structures. BACKGROUND

[0002] Using a high-strength metal sheet design to reduce the weight of products themselves and realizing light-weight production is an effective measure to solve the problems of reducing energy consumption, reducing emissions, protecting the environment and improving carrying capacity. High-strength metal sheet materials need to have good strength, toughness and certain low-temperature and corrosion resistance, and also need to have good welding performance. However, due to the sharp reduction of the thickness of the sheet material, the rigidity and stability of the sheet structure are significantly reduced. In the welding manufacturing process, inherent deformation in the plane caused by welding shrinkage may occur, instability may occur, and large-scale local wavy or overall torsional out-of-plane welding deformation may be generated. As the most complex form of welding deformation, welding instability deformation not only seriously affects the appearance and manufacturing precision of the welded structure and cannot be integrated with other components for manufacturing, but also increases the manufacturing cost and prolongs the working hours in the later correction process. In particular, welding instability deformation is difficult to eliminate in the post-welding correction due to its unstable characteristics. At present, laser welding has been used for some small or precision component sheet structures to avoid excessive deformation. However, for most manufacturers, the conventional gas shielded welding or submerged arc welding is still used for sheet welding, and therefore, relatively large out-of-plane deformation may be caused. Most manufacturers use post-welding correction methods to correct the deformation, which increases the difficulty and operation time. A part of researchers use mechanical forced external constraint methods to reduce the deformation during welding, but this may cause huge internal stress. At present, most of the researches on the prediction and elimination of welding instability of sheet structures are based on the analysis of welding residual stress. The essence of welding instability deformation, i.e. inherent deformation (longitudinal compression plastic strain at the weld) and the trend and internal mechanism of welding inherent deformation under high-frequency induction heating, has not been fully touched. How to experimentally measure and analyze the effective and ineffective inherent strain and determine which part of the inherent strain causes the instability deformation is also a difficulty in the research. SUMMARY

[0003] Invention purposes: The purpose of the present application is to provide a cold and hot source integrated welding device for regulating the welding deformation of sheet metal components. Based on inherent deformation theory, the mechanism of controlling and eliminating the welding unstable deformation of sheet ship body frame structure by applying post-welding cold source and additional heat source away from the welding area, and implementing cold and hot source integrated loading is clarified. The optimal parameters of post-welding cold source and additional heat source are obtained during the welding process through different processes. While optimizing the best value range of each process parameter, the local temperature regulation of the far end is finally realized. Not only the internal residual stress is eliminated, but also a large amount of out-of-plane deformation is eliminated. Thus, the welding unstable deformation is accurately and efficiently controlled, and the precision of sheet metal processing is improved.

[0004] Technical scheme: The cold and hot source integrated welding device for regulating the welding deformation of sheet metal components comprises a platform frame, a welding module, a heating module, a refrigeration module and a control module. A sliding plate is arranged on the platform frame. Support legs are arranged on the lower side of the middle part of the platform frame. A support fixing frame for supporting the heating module is arranged on the support legs and can slide up and down. A gantry fixing frame for fixing the welding module and the refrigeration module is arranged on one side of the center of the platform frame. The control module is used for controlling the forward and backward and left and right sliding of the heating module on the support fixing frame, and controlling the up and down and left and right free sliding of the welding module and the refrigeration module on the gantry fixing frame.

[0005] Further, the width of the sliding plate is the same as or within the width of the platform frame, and the length of the sliding plate is within half of the length of the platform frame, so that the sliding plate can run back and forth on the platform frame. The platform frame is a desktop structure without a desktop made of a metal horizontal, vertical and longitudinal cuboid rod, and the length and width thereof are made according to the operation requirements.

[0006] Further, the platform frame comprises outermost edge beams, a longitudinal center beam and a horizontal center beam. A plurality of longitudinal side beams are arranged between the longitudinal center beam and the two longitudinal edge beams. A plurality of horizontal side beams are arranged between the horizontal center beam and the two horizontal edge beams. Support legs are arranged on the middle part of the two longitudinal edge beams of the platform frame and the lower part of the four corners of the platform frame.

[0007] Further, vertical slides are arranged on the support legs on the lower side of the middle part of the two edge beams, and support fixing frames are embedded in the vertical slides. The support fixing frames can slide up and down along the vertical slides.

[0008] Further, the sliding plate comprises a platform plate, a track panel, a cylindrical track and a first driving motor. The cylindrical track is fixedly connected with the longitudinal side beams of the platform frame. The platform plate is embeddedly connected with the cylindrical track through the track panel. The first driving motor is used for controlling the forward and backward sliding of the sliding plate on the cylindrical track. A plurality of clamping devices are arranged around the upper part of the sliding plate to assist the structure to be confined.

[0009] Further, the gantry fixing frame comprises a horizontal beam, a first cross sliding rail frame is fixedly arranged on the horizontal beam, a first universal gauge rod base and a second universal gauge rod base are arranged on the first cross sliding rail frame, a first universal gauge rod is fixedly arranged on the first universal gauge rod base, and a second universal gauge rod is fixedly arranged on the second universal gauge rod base; the second universal gauge rod is fixedly connected with the high-frequency induction heating module, and the first universal gauge rod is fixedly connected with the gas refrigeration module. Based on this, the working vertical height of the welding module and the refrigeration module can be controlled; the first universal gauge rod and the second universal gauge rod can adjust the six-degree-of-freedom displacement and rotation of the working end of the welding module and the refrigeration module in a small range.

[0010] Further, the support fixing frame is provided with a second cross sliding rail frame, a third universal gauge rod is arranged on the second cross sliding rail frame, and the third universal gauge rod is fixedly connected with the high-frequency induction heating module, so that the six-degree-of-freedom displacement and rotation of the working end of the high-frequency induction heating module in a small range can be adjusted.

[0011] Further, the welding module can be an automatic or semi-automatic welding robot or a robot arm with mature welding means, and is also compatible with a welding machine that needs to be manually welded, so as to face more production demands. The first universal gauge rod can fix the welding module, so that the welding module can stably work. Further, the high-frequency induction heating module comprises a high-frequency induction heating machine and a water cooling box, the high-frequency induction heating machine and the water cooling box are connected through two water pipes, the high-frequency induction heating machine is connected with a high-frequency induction heating coil for steel plate electromagnetic induction heating through two soft copper pipes, the soft copper pipes are externally sleeved with protective pipes, the induction coil is fixed on the support fixing frame, and the induction coil can be translated and rotated in six degrees of freedom by relying on the support fixing frame.

[0012] Further, the gas refrigeration module comprises a nozzle, the nozzle is connected with a gas storage tank through a pipeline, the gas storage tank is connected with a pressure pump through a pipeline, and the nozzle is fixed on the first cross sliding rail frame.

[0013] Further, the control module comprises a computer and a hand wheel, the computer and the hand wheel are connected with all motion driving facilities in the device through a data line, the computer of the control module controls the running speed, time and direction of all motors through the input of parameters and the internally prepared control program, and the hand wheel is used for adjusting the state before welding.

[0014] Advantages: Compared with the prior art, the present application has the following remarkable advantages:

[0015] The present application adopts a track sliding control system to support a welding test piece to move on a platform at a predetermined speed and direction, realizes automatic operation of welding, auxiliary heat source and auxiliary cold source, and can automatically perform welding operation after all parameters are set and all equipment is operated, which is very suitable for long distance welding operation, can be compatible with various welding equipment, and can get rid of the original manual welding equipment, and can also be compatible with the use of the equipment.

[0016] Meanwhile, a new process of loading a post-welding cold source, an additional heat source applied in a region far from a weld seam and a cold-heat source integrated loading is launched, welding unstable deformation is controlled and eliminated, the mechanism has been verified through a large number of experiments and numerical simulation, the effectiveness of the auxiliary heat source and the cold source on deformation control is ensured, a set of controllable scheme is formed, efficient deformation control strategy is provided, and finally the precision of the metal sheet key structure is improved.

[0017] Since the welding module, the heating module and the refrigeration module are all configured with mechanical equipment and storage devices with large volume, the welding module, the heating module and the refrigeration module are difficult to move, through the function of the control system and the sliding plate, the function of moving the component and not moving the equipment can be realized, and only the appropriate length of the pipeline of each module needs to be selected according to the length of the platform. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a top view schematic diagram of a cold-heat source integrated welding device for regulating and controlling welding deformation of a sheet metal component according to the present application;

[0019] Figure 2 is a front view schematic diagram of a cold-heat source integrated welding device for regulating and controlling welding deformation of a sheet metal component according to the present application;

[0020] Figure 3 is a side view schematic diagram of a cold-heat source integrated welding device for regulating and controlling welding deformation of a sheet metal component according to the present application;

[0021] Figure 4 is a top view schematic diagram of a platform frame according to the present application;

[0022] Figure 5 is a front view schematic diagram of a platform frame according to the present application;

[0023] Figure 6 is a top view schematic diagram of a sliding plate according to the present application;

[0024] Figure 7 is a side view schematic diagram of a sliding plate according to the present application;

[0025] Figure 8 is a front view schematic diagram of a gantry fixed frame according to the present application;

[0026] Figure 9 is a side view schematic diagram of a gantry fixed frame according to the present application;

[0027] Figure 10 This is a side view of the triangular support bracket;

[0028] Figure 11 This is a schematic diagram of the heating module;

[0029] Figure 12 This is a schematic diagram of the cooling module;

[0030] Figure 13 This is a schematic diagram of the control module;

[0031] Figure 14 This is a front view schematic diagram of the driving motor's motion principle;

[0032] Figure 15 This is a side view schematic diagram of the driving motor's motion principle;

[0033] Figure 16 This is a top-view schematic diagram of the driving motor's motion principle. Detailed Implementation

[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0035] Example 1

[0036] like Figures 1-3 As shown, the present invention discloses an integrated hot and cold source loading platform for regulating the welding deformation of thin-plate metal components. Its basic frame is a rectangular table-shaped platform frame 1 formed by horizontal beams, vertical beams, and a control module 8. The platform frame 1 includes a welding module 5, a high-frequency induction heating module 6, a cooling module 7, and a control module 8. A sliding plate 2 is mounted on the platform frame 1. Support legs are located on the lower middle part of the platform frame 1, and triangular support brackets 4 are mounted on the support legs to support the high-frequency induction heating module 6. The heating module 6 can slide freely forward, backward, left, and right on the support brackets 4. A gantry bracket 3 is placed on one side of the center of the platform frame 1. The gantry bracket 3 has a sliding track frame for fixing the welding module 5 and the cooling module 7. The welding module 5 and the cooling module 7 can slide freely up, down, left, and right on the sliding track frame of the gantry bracket 3. The control module controls the movement of the welding module 5, the heating module 6, and the cooling module 7.

[0037] Among them, such as Figures 4-5As shown, the size and dimensions of the platform frame 1 and the sliding platform 2 can be designed according to requirements, ensuring that the width of the sliding platform 2 is the same as or within the width of the platform frame 1, without hindering the work. The sliding platform 2 is a platform for placing welding structures, and the platform frame 1 includes the outermost edge beams 11, the longitudinal center beam 13, and the transverse center beam 14, a plurality of longitudinal side beams 12 are arranged between the longitudinal center beam 13 and the two longitudinal edge beams 11, and a plurality of transverse side beams 16 are arranged between the transverse center beam 14 and the two transverse edge beams 11. The size and number of each beam are added according to the stability and strength requirements. The middle of the two longitudinal edge beams 11 of the platform frame 1 and the lower part of the four corners of the platform frame 1 are provided with support legs 15. The support legs 15 on the lower side of the middle of the two edge beams 11 are provided with vertical slides 17, and the vertical slides 17 are embedded with support fixtures 4, which can slide up and down along the vertical slides 17.

[0038] As shown, Figures 6-7 The length of the sliding platform 2 is half the length of the platform frame 1, ensuring that the sliding platform 2 can run back and forth in the platform frame 1. The sliding platform 2 is a completely flat metal plate, which is divided into a platform plate 21, a track panel 22, a cylindrical track 23, and a first drive motor 25. The cylindrical track 23 is fixedly connected with the longitudinal side beams 12 of the platform frame 1, the platform plate 21 is embeddedly connected with the cylindrical track 23 through the track panel 22, to facilitate the forward and backward sliding of the sliding platform 2 on the cylindrical track 23, and the first drive motor 25 is fixedly arranged at the bottom of the sliding platform 2 corresponding to the longitudinal center beam 13. The sliding platform 2 moves forward and backward by moving on the longitudinal center beam 13 through the first movement drive motor 25. A plurality of clamping devices 24 are arranged around the upper part of the sliding platform 2 to assist in the confinement of the structure.

[0039] As shown, Figure 2 , 8As shown in FIG. 9, a gantry fixed frame 3 is added above the lateral side beam 16 on one side of the center of the platform frame 1, and the gantry fixed frame 3 and the platform frame 1 are fixedly connected by welding, and are actually integrated. The main reason for deviating from the center of the platform frame 1 is to ensure that the welding module 5 is in the center of the entire loading platform, and not to hinder the work of the heating module 6. The gantry fixed frame 3 is used to fix the welding module 5 and the gas refrigeration module 7, and the height of the gantry fixed frame 3 needs to meet the welding requirements of the test piece. The gantry fixed frame 3 includes a horizontal beam 31, and a first cross sliding rail frame 32 is fixedly arranged on the horizontal beam 31. The first cross sliding rail frame 32 is divided into a left-right horizontal rail frame 323 and a vertical vertical rail frame 324. The vertical vertical rail frame 324 is embedded in the horizontal rail 321 of the left-right horizontal rail frame 323 through an embedded plate 325, and a second motion driving motor 326 is arranged inside the embedded plate 325 to control the left-right (horizontal) movement of the vertical vertical rail frame 324. The vertical rail 322 of the vertical vertical rail frame 324 is embedded with a first universal table rod base 33 and a second universal table rod base 34, and the first universal table rod base 33 and the second universal table rod base 34 are respectively provided with a third motion driving motor 331 and a fourth motion driving motor 341. A first universal table rod 35 is fixedly arranged on the first universal table rod base 33, and a second universal table rod 36 is fixedly arranged on the second universal table rod base 34. The second universal table rod 36 is used to fix the welding module 5, and the first universal table rod 35 is used to fix the gas refrigeration module 7. Therefore, the vertical vertical rail frame 324 can control the up-down movement of the first universal table rod base 33 and the second universal table rod base 34 through the third motion driving motor 331 and the fourth motion driving motor 341, so as to control the vertical height of the work of the welding module 5 and the refrigeration module 7. The first universal table rod 35 and the second universal table rod 36 can adjust the six-degree-of-freedom displacement and rotation of the work end of the welding module 5 and the refrigeration module 7 in a small range.

[0040] As Figure 10As shown, the triangular support fixing frame 4 is symmetrical on both sides of the platform frame 1, and the main function is to fix the high-frequency induction heating module 6. The triangular support fixing frame 4 is embedded in the vertical slide 17 of the support leg 15 in the longitudinal middle part of the platform frame 1 through the embedding plate 41. The fifth motion drive motor 446 is arranged inside the embedding plate 41 position of the triangular support fixing frame 4, which facilitates the up-down movement of the triangular support fixing frame 4. The upper part of the support fixing frame 4 is provided with a second cross sliding rail frame 44, which has the same structure and working principle as the first cross sliding rail frame 32. The second cross sliding rail frame 44 is divided into left-right horizontal rail frame 441 and front-back horizontal rail frame 442. The left-right horizontal rail frame 441 is below, and the left-right horizontal rail 443 is arranged above the left-right horizontal rail frame 441. The front-back horizontal rail frame 442 is above, and the embedding plate 445 is arranged at the bottom of the front-back horizontal rail frame 442 for embedding the left-right horizontal rail 443. The front-back horizontal rail frame 442 is provided with a front-back horizontal rail 444 at the upper part, which is convenient for the embedding of the third universal table rod base 42. The sixth motion drive motor 447 is arranged in the embedding plate 445. The front-back horizontal rail frame 442 is embedded in the left-right horizontal rail 443 of the left-right horizontal rail frame 441 through the embedding plate 445, and then moves left and right on the left-right horizontal rail frame 441 through the control of the sixth motion drive motor 447. The third universal table rod base 42 is arranged on the front-back horizontal rail frame 442. The seventh motion drive motor 421 is arranged in the third universal table rod base 42, and the third universal table rod base 42 is embedded in the front-back horizontal rail 444 of the front-back horizontal rail frame 442. The third universal table rod base 42 can move forward and backward on the front-back horizontal rail frame 442 through the control of the seventh motion drive motor 421. The third universal table rod 43 is fixed on the third universal table rod base 42, and the third universal table rod 43 is used for fixing the high-frequency induction heating module 6. The third universal table rod 43 can adjust the six-degree-of-freedom displacement and rotation of the working end of the high-frequency induction heating module 6 in a small range.

[0041] The welding module 5 can be an automatic or semi-automatic welding robot or a machine arm with mature welding means, and is also compatible with welding machines that need to be manually welded to face more production needs. The second universal table rod 36 can fix the welding module 5 to facilitate stable operation of the welding module 5. All devices on the gantry fixing frame 3 can ensure that the welding module 5 can move in a small range of six degrees of freedom in the platform.

[0042] As Figure 11As shown, the high-frequency induction heating module 6 includes two high-frequency induction heating machines 62 and a water-cooled tank 61, two high-frequency induction heating machines 62 and the water-cooled tank 61 are connected by two water pipes 65 respectively, and each high-frequency induction heating machine 62 is further connected with a high-frequency induction heating coil 63 for steel plate electromagnetic induction heating through two soft copper pipes 66, and the soft copper pipe 66 is externally sleeved with a protective pipe 64. In use, the water-cooled tank 61 is first filled with a certain amount of water, and when the equipment is running, the water-cooled tank 61 sends water into the high-frequency induction heating machine 62 through one of the two water pipes 65, and then sends water into the high-frequency induction heating coil 63 through one of the two soft copper pipes 66, and then returns the water from the high-frequency induction heating coil 63 to the other one of the two soft copper pipes 66 to return to the high-frequency induction heating machine 62, and finally returns to the water-cooled tank 61, forming a water circulation, continuously cooling the equipment during operation, avoiding damage to the high-frequency induction coil 63. The induction coil 63 is fixed on the third universal table rod 43. The working principle of the high-frequency induction heating machine 62 is: electromagnetic induction heating, abandoning the conventional flame heating. Induction heating is generally applied to the far end of the weld, and high-frequency induction heating is generally applied to the position away from the weld, and the induction coil 63 is clamped and fixed on the triangular support fixture 4 by the third universal table rod 43, that is, the two sides of the platform frame 1. In order to protect the equipment, since the high-frequency induction heating coil 63 is the working end, the third universal table rod 43 can only clamp the soft copper pipe 66 behind the high-frequency induction heating coil 63, so the protective pipe 64 is added at the clamping position of the soft copper pipe 66 to facilitate clamping by the third universal table rod 43. The induction heating coil 63 can rely on all devices on the triangular support fixture 4 to perform six degrees of freedom translation and rotation.

[0043] As shown in Figure 12 The gas refrigeration module 7 includes a nozzle 73 connected with a gas storage tank 71 through a first pipe 75, and the gas storage tank 71 is connected with a pressure pump 72 through a second pipe 76. The nozzle 73 is externally sleeved with a protective pipe 74. The external pressure pump 72 pressurizes the gas in the gas storage tank 71 through the pipe 76, and finally sprays out through the nozzle 73 through the pipe 75. Since it is a spray cooling during welding, the fixing method and position of the nozzle 73 and the welding gun head of the welding module 5 are basically the same, which is clamped by the first universal table rod 35, and adjusted according to the actual situation.

[0044] As shown in Figure 13As shown, control module 8 includes a computer 81 and a handwheel 82. Both computer 81 and handwheel 82 are connected to all the aforementioned motion drive motors via data cables for motor control. The motion drive motors include a first drive motor 25, a second drive motor 326, a third drive motor 331, a fourth drive motor 341, a fifth drive motor 446, a sixth drive motor 447, and a seventh drive motor 421. Computer 81 in control module 8 controls the speed, time, and direction of all motors through parameter input and an internally programmed control program. The motion control program of handwheel 82 is shared with computer 81; single parameter input requires manual adjustment. Handwheel 82 includes a motor selection wheel 822, a direction selection wheel 821, a speed wheel 823, and an execution rotation wheel 824. The start of welding operations is primarily controlled by computer 81; handwheel 82 is used for pre-welding status adjustments. The motor selection wheel 822 can select the motor to be controlled, the direction selection wheel 821 can select the direction of movement of the motor, the execution rotation wheel 824 can execute the movement of the selected motor and its direction, and the movement speed wheel 823 can control the speed of the motor when the execution rotation wheel 824 controls the movement of the motor. For example, when the adjustment range is far, the movement speed can be increased by 10 to save time; when controlling the distance between the welding torch and the weld seam, very fine adjustments are required, so a movement speed of 0.1 times can be selected.

[0045] like Figure 14 , 15 As shown in Figure 16, taking the second drive motor 326 as an example, the motion principle of all drive motors is described: The drive motor 326 internally houses a conventional rotary drive motor 3261, the power and number of which are determined by the functional force of the attached structure. The rotary drive motor 3261 drives the motion gears 3262 at both ends of each rotary drive motor 3261 via a transmission shaft 3264. A track 3263, whose shape matches the motion gear 3262, is fixed to the surface of the horizontal track frame 323, the basic structure upon which the motion is based. The top of the drive motor 326 is rigidly connected to the vertical track frame 324 of the attached structure. The sliding between the embedded plate 325 and the horizontal track 321 serves two purposes: guidance and limiting, ensuring that the motion gear 3262 and the track 3263 do not deviate from a straight line during long-term operation. However, the first drive motor 25 of the sliding plate 2 does not require a structure similar to the embedded plate 325 and the horizontal track 321, because the track plate 22 and the cylindrical track 23 already fulfill these functions. Thus, as long as the rotary drive motor 3261 rotates, the vertical track frame 324 on which the drive motor 326 is attached can move left and right on the horizontal track frame 323.

[0046] When using:

[0047] like Figure 1、 Figure 2 、 Figure 3 As shown in Fig. 1, the metal components to be welded are placed on the sliding platform 2 and fixed by the clamping device 24. The welding module 5 is fixed on the overall device by the second universal joint 36. The welding module 5 is adjusted to the desired position by the computer control 81 in the control module 8 and fine-adjusted by the hand wheel 82. The speed, time and direction of the operation are inputted by the computer control 81 to control the movement of the track panel 22 along the cylindrical track 23 to complete the welding process.

[0048] As shown in Fig. 2, the heating module 6 is started if the application of auxiliary heat source is required. The heating module 6 is implemented by the induction coil 63 to locally heat the position away from the weld. Since the induction coil 63 is fixed on the triangular support frame 4, the heating module 6 does not need to move. The induction coil 63 controls the overall inherent strain and temperature field of the welded structure to control the welding deformation. Figure 1 、 Figure 2 、 Figure 3 As shown in Fig. 3, the refrigeration module 7 is started if the application of auxiliary cold source is required. The refrigeration module 7 is implemented by the cooling gas sprayed by the spray head 73 to achieve the function of cooling the weld. The shrinkage force is generated to stretch the weld metal being cooled and solidified, refine the microstructure of the weld and heat affected zone, and improve the mechanical properties of the joint, thereby achieving the purpose of actively and online controlling the welding deformation.

[0049] As shown in Fig. 4, the welding module 5, the heating module 6 and the refrigeration module 7 are started simultaneously to maximize the control of the welding deformation of the thin plate metal. Since the welding module 5, the heating module 6 and the refrigeration module 7 are all configured with large mechanical equipment and storage devices, it is difficult to move the welding module 5, the heating module 6 and the refrigeration module 7. The function of the control system 8 and the sliding platform 2 can realize the function of moving the components and not moving the equipment. Only the appropriate length of the pipeline of each module needs to be selected according to the length of the platform. Figure 1 、 Figure 2 、 Figure 3 As shown in Fig. 5, the welding module 5, the heating module 6 and the refrigeration module 7 are started simultaneously to maximize the control of the welding deformation of the thin plate metal. Since the welding module 5, the heating module 6 and the refrigeration module 7 are all configured with large mechanical equipment and storage devices, it is difficult to move the welding module 5, the heating module 6 and the refrigeration module 7. The function of the control system 8 and the sliding platform 2 can realize the function of moving the components and not moving the equipment. Only the appropriate length of the pipeline of each module needs to be selected according to the length of the platform.

[0050] As shown in Fig. 6, the welding module 5, the heating module 6 and the refrigeration module 7 are started simultaneously to maximize the control of the welding deformation of the thin plate metal. Since the welding module 5, the heating module 6 and the refrigeration module 7 are all configured with large mechanical equipment and storage devices, it is difficult to move the welding module 5, the heating module 6 and the refrigeration module 7. The function of the control system 8 and the sliding platform 2 can realize the function of moving the components and not moving the equipment. Only the appropriate length of the pipeline of each module needs to be selected according to the length of the platform. Figures 1-13 Example 2

[0051]

[0052] ​The effectiveness of the device and the method thereof is illustrated by cases by using the device shown in Example 1 to carry out welding, and the effectiveness is verified by experiment of butt welding of two 200mmx400mm AH36 steel materials with a thickness of 5mm. When the heating module 6 and the refrigeration module 7 are closed, only the welding module 5 is turned on to carry out butt welding of the flat plate. The welding module 5 used in the experiment adopts inert gas protection welding, 80% carbon dioxide and 20% argon, which is one of the welding methods used by most metal manufacturers. The welding speed is 5mm / s, the current is 360A, the voltage is 32V, and the total welding time is 80s. After the welding is completed and cooled to room temperature, the out-of-plane deformation of the test piece is measured. After the butt welding is completed, the same new base material is selected, the heating module 6 and the refrigeration module 7 are turned on at the same time, the heating module 6 selects an induction heating coil 3 with a diameter of 60mm, the output current is 600-650A, and the temperature generated is about 257℃. The center longitudinal position of the induction coil 3 is aligned with the welding gun of the welding module 5, and the speed is consistent with the welding speed. The refrigeration module 7 is a liquid nitrogen cooling with the welding gun behind 10cm, which directly acts on the weld position. After the welding is completed and cooled to room temperature, the out-of-plane deformation is measured and compared, and the comparison is shown in Table 1. As shown in Table 1, the out-of-plane deformation is reduced by 44.7% by using the device and the method thereof.

[0053] Table 1 Comparison of two welding results Welding process Welding module 5 Welding module 5, heating module 6, refrigeration module 7 Out-of-plane deformation reduction ratio Positive out-of-plane deformation 5.226 mm 3.641 mm -30% Negative out-of-plane deformation -6.845 mm -3.036 mm -56% .

Claims

1. A cold and heat source integrated welding device for controlling the welding deformation of thin plate metal components, characterized in that, The system includes a platform frame (1), a welding module (5), a heating module (6), a cooling module (7), and a control module (8). The platform frame (1) is provided with a sliding plate (2). The lower part of the middle of the platform frame (1) is provided with a support leg. The support leg is provided with a support fixing frame (4) that can slide up and down to support the heating module (6). A gantry fixing frame (3) for fixing the welding module (5) and the cooling module (7) is placed on one side of the center of the platform frame (1). The control module (8) is used to control the heating module (6) to slide back and forth and left and right on the support fixing frame (4), and to control the welding module (5) and the cooling module (7) to slide freely up and down and left and right on the gantry fixing frame (3).

2. The integrated cold and hot source welding device for controlling the welding deformation of thin-plate metal components according to claim 1, characterized in that, The width of the sliding plate (2) is the same as or within the width of the platform frame (1), and the length of the sliding plate (2) is within half the length of the platform frame (1), so that the sliding plate (2) can run back and forth on the platform frame (1).

3. The integrated cold and hot source welding device for controlling welding deformation of thin plate metal components according to claim 1, characterized in that, The platform frame (1) includes the outermost edge beam (11), the longitudinal center beam (13) and the transverse center beam (14). Multiple longitudinal side beams (12) are provided between the longitudinal center beam (13) and the two longitudinal edge beams (11). Multiple transverse side beams (16) are provided between the transverse center beam (14) and the two transverse edge beams (11). Support legs (15) are provided in the middle of the two longitudinal edge beams (11) of the platform frame (1) and at the lower part of the four corners of the platform frame (1).

4. The integrated cold and hot source welding device for controlling welding deformation of thin-plate metal components according to claim 3, characterized in that, A vertical slide (17) is provided on the support leg (15) on the lower side of the middle of the two side beams (11). A support fixing frame (4) is embedded in the vertical slide (17). The support fixing frame (4) can slide up and down along the vertical slide (17).

5. The integrated cold and hot source welding device for controlling welding deformation of thin-plate metal components according to claim 1, characterized in that, The sliding plate (2) includes a platform plate (21), a track panel (22), a cylindrical track (23), and a first drive motor (25). The cylindrical track (23) is fixedly connected to the longitudinal side beam 12 of the platform frame 1. The platform plate (21) is fitted and connected to the cylindrical track (23) through the track panel (22). The first drive motor (25) controls the sliding plate (2) to slide back and forth on the cylindrical track (23). Multiple clamping devices (24) are provided around the upper part of the sliding plate (2) to assist in the confinement of the structure.

6. The integrated cold and hot source welding device for controlling welding deformation of thin-plate metal components according to claim 1, characterized in that, The gantry fixing frame (3) includes a horizontal beam (31), a first cross sliding rail frame (32) is fixedly mounted on the horizontal beam (31), a first universal rod base (33) and a second universal rod base (34) are mounted on the first universal rod base (33), a first universal rod (35) is fixedly mounted on the first universal rod base (33), a second universal rod (36) is fixedly mounted on the second universal rod base (34), the second universal rod (36) is fixedly connected to the fixed welding module (5), and the first universal rod (35) is fixedly connected to the gas cooling module (7).

7. The integrated cold and hot source welding device for controlling welding deformation of thin plate metal components according to claim 1, characterized in that, The second cross sliding rail frame (44) is mounted on the upper part of the support frame (4). The third universal joint rod (43) is mounted on the second cross sliding rail frame (44). The third universal joint rod (43) is fixedly connected to the high-frequency induction heating module (6) and can adjust the displacement and rotation of the working end of the high-frequency induction heating module (6) within a small range of six degrees of freedom.

8. The integrated cold and heat source welding device for controlling welding deformation of thin-plate metal components according to claim 1, characterized in that, The high-frequency induction heating module (6) includes a high-frequency induction heater (62) and a water-cooled box (61). The high-frequency induction heater (62) and the water-cooled box (61) are connected by two water pipes (65). The high-frequency induction heater (62) is connected to a high-frequency induction heating coil (63) for electromagnetic induction heating of steel plate by two soft copper pipes (66). The soft copper pipes (66) are covered with protective tubes (64). The induction coil (63) is fixed on the support frame 4. The induction coil (63) can be translated and rotated in six degrees of freedom by relying on the support frame (4).

9. The integrated cold and hot source welding device for controlling welding deformation of thin-plate metal components according to claim 6, characterized in that, The gas cooling module (7) includes a nozzle (73), which is connected to a gas storage tank (73) via a pipe. The gas storage tank (71) is connected to a pressure pump (72) via a pipe. The nozzle (73) is fixed on the first cross sliding rail frame (32).

10. The integrated cold and hot source welding device for controlling welding deformation of thin plate metal components according to claim 1, characterized in that, The control module (8) includes a computer (81) and a handwheel (82). The computer (81) and the handwheel (82) are connected to all motion drive facilities via data cables. The computer (81) of the control module (8) controls the running speed, time and direction of all motors through parameter input and internally written control programs. The handwheel (82) is used for pre-welding status adjustment.

Images