Welding equipment

Abstract

The present invention discloses a welding device. The welding device includes a frame, a pressurizing mechanism, a welding mechanism, and a pressure compensation device. The pressurizing mechanism is disposed on the frame and includes a driving member and a driving shaft. The welding mechanism includes a mounting seat, two first electrodes, and a second electrode. The pressure compensation device includes an elastic member and a connecting rod. The connecting rod is movably inserted through the mounting seat. One end of the connecting rod away from the driving shaft is connected to the other first electrode. The elastic member is detachably sleeved on the connecting rod, and two ends of the elastic member respectively abut against the mounting seat and the first electrode. The technical solution of the present invention performs pressure compensation on the pressure of electrodes with a large number of welding points, and then balances the pressure between multiple electrodes. By replacing elastic members with different lengths, the moving stroke during the welding of the electrodes to the pot body is changed, and the welding pressure of the electrodes at different strokes is kept the same, improving the welding effect.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly relates to a welding device. Background Art

[0002] Resistance welding refers to a method of locally heating a workpiece by using the resistance heat generated by the current passing through the workpiece and the contact point, and simultaneously applying pressure for welding. During welding, no filler metal is required, the productivity is high, the deformation of the workpiece is small, and it is easy to realize automation. Existing appliances such as boilers need to be formed by welding, and the welded parts are generally the pot body and the pot ear. Since some soup pot appliances have a large volume and diameter, high welding strength requirements for the pot ear are required.

[0003] Currently, in order to ensure the welding strength, a plurality of welding bumps are provided on the pot ear, and the plurality of welding points are evenly arranged, and it is necessary to perform layered welding on the plurality of welding points. Most of the existing electrode layers are two layers. Since the number of welding points in the two layers is inconsistent, the welding pressures in the two layers are also different.

[0004] However, the existing welding device cannot adjust the welding pressure of different layers, resulting in poor welding effects. And since the outer shapes of some pot bodies are inclined or arc-shaped, it is necessary to adjust different welding strokes for the welding heads of different layers. The existing welding device cannot adjust the moving stroke of the welding heads, and thus there are problems of uneven welding pressure and poor welding effects. Summary of the Invention

[0005] The main object of the present invention is to propose a welding device, aiming to achieve the effects of adjusting the pressure distribution during welding of electrodes in different layers and the moving stroke of the welding heads in the welding device, and improving the welding effect.

[0006] To achieve the above object, the welding device proposed by the present invention includes:

[0007] A frame;

[0008] A pressurizing mechanism, the pressurizing mechanism is provided on the frame, the pressurizing mechanism includes a driving member and a driving shaft, and the driving member is drivingly connected to one end of the driving shaft;

[0009] A welding mechanism, the welding mechanism includes a mounting seat, two first electrodes and a second electrode. The mounting seat is connected to the other end of the driving shaft. One of the first electrodes is connected to the mounting seat. The second electrode is provided on the frame and is located on one side of one of the first electrodes away from the driving shaft and is spaced apart from one of the first electrodes. The driving member drives the driving shaft, the mounting seat and one of the first electrodes to approach or move away from the second electrode; and

[0010] A pressure compensation device, the pressure compensation device includes at least two elastic members and a connecting rod. The elastic coefficients of at least two of the elastic members are different. The connecting rod is movably disposed through the mounting base in the moving direction of the mounting base. One end of the connecting rod away from the drive shaft is connected to the other first electrode. The elastic member is detachably sleeved on the connecting rod, and both ends of the elastic member respectively abut against the mounting base and the other first electrode.

[0011] Optionally, the pressure compensation device further includes a fixing member and a connecting seat. The fixing member is detachably connected to one surface of the mounting base. The connecting rod is movably disposed through the fixing member. The connecting seat is detachably connected to one side of the first electrode. Both ends of the elastic member respectively abut against the fixing member and the connecting seat.

[0012] Optionally, the number of the pressure compensation devices is two. The two fixing members are respectively disposed on opposite sides of the mounting base along the direction perpendicular to the extending direction of the drive shaft. The two connecting seats are respectively disposed at opposite ends of the first electrode along the direction perpendicular to its horizontal extending direction.

[0013] Optionally, the welding device further includes a slide rail assembly. The slide rail assembly includes a guide rail and two sliders. The guide rail is disposed on the frame and is located below the pressing mechanism. The guide rail extends along the extending direction of the drive shaft. Both of the two sliders are slidably disposed on the guide rail. The other first electrode and the mounting base are respectively disposed on the two sliders.

[0014] Optionally, the number of the slide rail assemblies is two. The two slide rail assemblies are respectively disposed on opposite sides of the pressing mechanism below along the direction perpendicular to the horizontal extending direction of the drive shaft. One slide rail assembly is respectively correspondingly connected to one pressure compensation device.

[0015] Optionally, a plurality of welding heads are provided on a surface of the first electrode facing away from the mounting base. The plurality of welding heads are spaced apart and arranged in an array.

[0016] Optionally, a surface of the first electrode facing away from the mounting base is a concave arc surface, and a surface of the second electrode facing the first electrode is a convex arc surface. The radian of the concave arc surface of the first electrode is the same as that of the convex arc surface of the second electrode.

[0017] Optionally, the frame includes a support base at the bottom and fixing plates connected to opposite sides of the support base. The pressing mechanism is disposed on one of the fixing plates. The drive shaft passes through the fixing plate. The second electrode is disposed on the other fixing plate.

[0018] Optionally, the heights of the two fixing plates are different, and the two first electrodes are symmetrically distributed on opposite sides of the driving shaft in the vertical direction and are correspondingly located on the center line of the second electrode.

[0019] Optionally, the welding device further includes a transformer assembly. The transformer assembly is arranged below the frame. The transformer assembly includes a transformer and a plurality of connecting copper bars. The transformer is arranged below the welding mechanism. One ends of the plurality of connecting copper bars are electrically connected to the transformer, and the other ends are respectively electrically connected to the two first electrodes and the second electrode.

[0020] In the technical solution of the present invention, two first electrodes and one second electrode are arranged in the welding mechanism of the welding device, and a pressure compensation device is arranged between one of the first electrodes and the driving shaft of the pressing mechanism. The pressure compensation device includes an elastic member and a connecting rod. When the first electrode contacts the welding tool, the elastic member is squeezed, forming a reaction force of the elastic member. Then, the compression elastic force of the elastic member is used for pressure compensation to adjust the pressure between the first electrode and the second electrode. The connecting rod is used to stabilize the position of the first electrode. By arranging the pressure compensation device between the first electrode and the pressing mechanism, pressure compensation is performed on the electrode with a large number of welding points, and then pressure balance is achieved between multiple electrodes, thereby ensuring that the pressures of the two layers of electrodes are kept consistent during the welding process. Moreover, the elastic member is detachably connected, so that the elastic member can be replaced. For cookers with different shapes and curvatures, elastic members with different lengths can be replaced, thereby changing the moving stroke when the electrode is welded to the cooker and keeping the welding pressure of the electrode the same at different strokes, improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0022] Figure 1 is a schematic structural diagram of an embodiment of the welding device of the present invention;

[0023] Figure 2 is Figure 1 a schematic structural diagram of the welding device from another perspective shown;

[0024] Figure 3 is Figure 2 a schematic structural diagram of the welding device shown after removing the frame;

[0025] Figure 4is Figure 3 Schematic structural diagram of the welding equipment shown after removing the transformer assembly;

[0026] Figure 5 is Figure 4 Schematic structural diagram of the welding equipment shown after removing the pressurizing mechanism;

[0027] Figure 6 is Figure 5 Schematic structural diagram of the welding equipment shown after removing the second electrode;

[0028] Figure 7 is Figure 4 Schematic structural diagram of another perspective of the welding equipment shown;

[0029] Figure 8 Schematic structural diagram of the welding equipment of the present invention during welding operation.

[0030] Explanation of the reference numerals in the drawings:

[0031] Label Name Label Name 1 Welding equipment 10 Frame 11 Support base 13 Fixed plate 20 Pressing mechanism 21 Driver 23 Drive shaft 30 Welding mechanism 31 First electrode 311 Welding head 33 Second electrode 35 Mounting seat 40 Pressure compensation device 41 Elastic member 43 Connecting rod 45 Fastening piece 47 Connecting seat 50 Transformer assembly 51 Transformer 53 Wiring copper bar 60 Slide rail assembly 61 Guide rail 63 Slider 2 Welded part

[0032] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0034] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship and movement conditions between the components in a specific posture (as shown in the drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0035] In addition, if the embodiments of the present invention involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides a welding device 1.

[0037] In an embodiment of the present invention, as Figures 1 to 8 shown, the welding device 1 includes a frame 10, a pressurizing mechanism 20, a welding mechanism 30, and a pressure compensation device 40; the pressurizing mechanism 20 is provided on the frame 10, the pressurizing mechanism 20 includes a driving member 21 and a driving shaft 23, and the driving member 21 is drivingly connected to one end of the driving shaft 23; the welding mechanism 30 includes a mounting base 35, two first electrodes 31, and a second electrode 33, the mounting base 35 is connected to the other end of the driving shaft 23, one first electrode 31 is connected to the mounting base 35, the second electrode 33 is provided on the frame and is located on one side of the first electrode 31 away from the driving shaft 23 and is spaced apart from the first electrode 31, and the driving member 21 drives the driving shaft 23, the mounting base 35, and the first electrode 31 to approach or move away from the second electrode 33; the pressure compensation device 40 includes at least two elastic members 41 and a connecting rod 43, the elastic coefficients of the at least two elastic members 41 are different, the connecting rod 43 is movably inserted through the mounting base 35 in the moving direction of the mounting base 35, the end of the connecting rod 43 away from the driving shaft 23 is connected to the other first electrode 31, the elastic member 41 is detachably sleeved on the connecting rod 43, and both ends of the elastic member 41 respectively abut against the mounting base 35 and the other first electrode 31.

[0038] The pressurizing mechanism 20 is provided on the frame 10. The welding mechanism 30 and the pressure compensation device 40 are also provided on the frame 10. The frame 10 can serve as the support and mounting frame for the pressurizing mechanism 20, the welding mechanism 30 and the pressure compensation device 40, which has the function of stably mounting and protecting the pressurizing mechanism 20 and the welding mechanism 30, and has the function of stabilizing the position of the pressure compensation device 40. The pressurizing mechanism 20 includes a driving member 21 and a driving shaft 23. The driving member 21 can be a cylinder, an oil cylinder, etc. The driving member 21 is provided on one side of the frame 10. One end of the driving shaft 23 is connected to the output end of the driving member 21, and the other end of the driving shaft 23 is connected to one side of the mounting seat 35. The mounting seat 35 is connected with a first electrode 31. The driving shaft 23 is connected to the mounting seat 35, which can drive the mounting seat 35 to move. The driving member 21 drives the driving shaft 23 to extend or shorten, and then can drive the driving shaft 23 to move, drive the mounting seat 35 to move, and then drive the first electrode 31 to move. The other first electrode 31 is connected to the mounting seat 35 through a connecting rod 43. One end of the connecting rod 43 is movably inserted through the mounting seat 35, and the other end is connected to the other first electrode 31. When the mounting seat 35 moves, it can drive the two first electrodes 31 to move simultaneously.

[0039] Further, the welding device 1 further includes a pressure compensation device 40, and the pressure compensation device 40 is disposed between the first electrode 31 and the mounting base 35. It can be understood that the pressure compensation device 40 can be disposed at the bottom of the mounting base 35 or on the side of the mounting base 35. Disposing it at the bottom of the mounting base 35 can reduce the lateral space occupied inside the frame 10 and improve the space utilization rate. Disposing it on the side of the mounting base 35 enables the pressure compensation device 40 to include an elastic member 41 and a connecting rod 43. One end of the connecting rod 43 is movably inserted through the mounting base 35, and the other end is connected to the first electrode 31. The elastic member 41 is sleeved outside the connecting rod 43. Thus, the first electrode 31 can move relative to the mounting base 35. When the first electrode 31 moves towards the driving shaft 23, since one end of the elastic member 41 connected to the mounting base 35 is in a relatively static position relative to the other end, the elastic member 41 can be compressed in the direction towards the driving shaft 23 to generate elastic potential energy. When the first electrode 31 moves away from the driving shaft 23, the elastic member 41 resumes its original state, and the elastic potential energy is converted into kinetic energy. In this embodiment, since different numbers of welding heads 311 are provided on the two layers of the first electrodes 31, and the number of welding heads 311 is proportional to the welding pressure, for the first electrode 31 with a larger number of welding heads 311, a greater welding pressure is required. Therefore, it is necessary to provide a pressure compensation device 40 to compensate for and increase the welding pressure. After the pressure compensation device 40 is provided, for the first electrode 31 of the layer provided with the pressure compensation device 40, due to the elastic deformation of the elastic member 41 itself, the travel distance of this layer of the first electrode 31 from the second electrode 33 is greater than that of the first electrode 31 without the pressure compensation device 40. Thus, when the two first electrodes 31 move towards the second electrode 33 simultaneously, the first electrode 31 provided with the pressure compensation device 40 first contacts the welding part 2 and compresses the elastic member 41. When the two first electrodes 31 reach the welding part 2, the first electrode 31 provided with the pressure compensation device 40 compensates for the pressure due to the elastic potential energy of the elastic member 41, thereby increasing the welding pressure of this layer, achieving the effect of matching the welding pressure to the number of welding heads 311 of this layer, and further achieving the purpose of the same welding effect between the two layers of electrodes, ensuring the welding effect.

[0040] Further, the elastic member 41 is detachably sleeved on the connecting rod 43. The detachable connection method can be bonding, screw connection, snap connection, etc., which is not limited herein. The elastic member 41 is detachably sleeved on the connecting rod 43, and the number of the elastic members 41 is at least two. The elastic coefficients of at least two elastic members 41 are different. Thus, the moving stroke of the first electrode 31 provided with the pressure compensation device 40 after contacting the welding part 2 can be changed by replacing different elastic members 41. Further, the moving distance of the first electrode 31 can be changed, the deviation of the moving stroke between the two first electrodes 31 can be realized, and the welding part 2 of the pot body with a tilted or arc-shaped outer shape can be adapted. Further, the lengths of different elastic members 41 are different. By replacing elastic members 41 with different lengths, the initial installation lengths of the two first electrodes 31 can be changed, and the deviation of the moving stroke between the two first electrodes 31 can also be realized. Further, in order to adapt to the first electrodes 31 with different moving lengths, the moving distance of the first electrode 31 can be limited by replacing the connecting rod 43 with a different length, the limiting effect of the moving distance of the first electrode 31 is improved, and the moving distance after the first electrode 31 is connected to the connecting rod 43 can be adjusted, so as to ensure the deviation of the moving stroke between the two first electrodes 31.

[0041] In this embodiment, both the driving member 21 and the driving shaft 23 are arranged in the horizontal direction. Therefore, the first electrode 31 is also connected to the driving shaft 23 in the horizontal direction. The driving member 21 can drive the driving shaft 23 to move, thereby driving the first electrode 31 to reciprocate in the horizontal direction. The second electrode 33 is arranged on the side of the first electrode 31 away from the driving shaft 23 and is spaced from the first electrode 31. Thus, the first electrode 31 can approach or move away from the second electrode 33 under the drive of the driving member 21. When the first electrode 31 approaches the second electrode 33, the welding part 2 to be welded is placed between the first electrode 31 and the second electrode 33. The first electrode 31 and the second electrode 33 respectively abut against the two opposite surfaces to be welded. Through the pressurization of the pressurization mechanism 20 and the application of current to the first electrode 31 and the second electrode 33, the resistance heat generated by the current passing through the welded part and the contact part can be used as a heat source to locally heat the welded part, and at the same time, pressurization is carried out for welding to realize the butt joint of the welding part 2.

[0042] The technical solution of the present invention is that there are two first electrodes 31 and one second electrode 33 in the welding mechanism 30 of the welding device 1, and a pressure compensation device 40 is arranged between one of the first electrodes 31 and the drive shaft 23 of the pressing mechanism 20. The pressure compensation device 40 includes an elastic member 41 and a connecting rod 43. When the first electrode 31 contacts the welding tool, the elastic member 41 is squeezed, forming a reaction force of the elastic member 41. Then, the compression elastic force of the elastic member 41 is used for pressure compensation to adjust the pressure between the first electrode 31 and the second electrode 33. The connecting rod 43 is used to stabilize the position of the first electrode 31. By arranging the pressure compensation device 40 between the first electrode 31 and the pressing mechanism 20, pressure compensation is performed on the electrodes with a large number of welding points, and then pressure balance is achieved among multiple electrodes, thereby ensuring that the pressure of the two layers of electrodes remains consistent during the welding process. Moreover, the elastic member 41 is detachably connected, so that the elastic member 41 can be replaced. For pot bodies with different shapes and curvatures, elastic members 41 with different lengths can be replaced, thereby changing the moving stroke when the electrodes are welded to the pot body and keeping the welding pressure of the electrodes the same at different strokes, improving the welding effect.

[0043] In an embodiment of the present invention, as Figures 4 to 7 shown, the pressure compensation device 40 further includes a fixing member 45 and a connecting seat 47. The fixing member 45 is detachably connected to one surface of the mounting seat 35. The connecting rod 43 is movably inserted through the fixing member 45. The connecting seat 47 is detachably connected to one side of the first electrode 31. Two ends of the elastic member 41 respectively abut against the fixing member 45 and the connecting seat 47.

[0044] The fixing member 45 is provided for connecting the connecting rod 43 and the mounting seat 35, and restricting the moving direction of the connecting rod 43, avoiding the movement of the connecting rod 43 relative to the mounting seat 35, and maintaining the moving direction and mounting height of the connecting rod 43 for controlling the first electrode 31. The connecting seat 47 is provided. The connecting seat 47 is arranged on one side of the first electrode 31 for connecting the connecting rod 43 and the first electrode 31. The connecting seat 47 cooperates with the fixing member 45 to fix the moving direction and the force conduction direction of the connecting rod 43, thereby maintaining the moving direction and mounting height of the connecting rod 43 for controlling the first electrode 31 and ensuring the working effect of the pressure compensation device 40 on the first electrode 31.

[0045] Further, the fixing member 45 and the connecting seat 47 need to be arranged on the same horizontal line, and thus can be arranged at the bottom of the mounting seat 35 and the first electrode 31 at the same time, or can be arranged on the sides of the mounting seat 35 and the first electrode 31 at the same time. In this embodiment, when there is only one pressure compensation device 40, it can be arranged at the bottom of the mounting seat 35 and the first electrode 31. Preferably, it can be arranged at the bottom center of the bottom of the mounting seat 35 and the first electrode 31, so as to ensure balance and stability during the process of moving the first electrode 31.

[0046] In an embodiment of the present invention, as Figures 1 to 7 shown, the number of the pressure compensation devices 40 is two. The two fixing members 45 are respectively arranged on opposite sides of the mounting seat 35 along the direction perpendicular to the extension direction of the driving shaft 23, and the two connecting seats 47 are respectively arranged at both ends of the first electrode 31 along its extension direction.

[0047] In this embodiment, when the number of the pressure compensation devices 40 is two, the two pressure compensation devices 40 are respectively arranged on opposite sides of the horizontal extension direction of the welding mechanism 30. The two fixing members 45 are respectively arranged on opposite sides of the mounting seat 35 along the direction perpendicular to the horizontal extension direction of the driving shaft 23, and the two connecting seats 47 are respectively arranged on opposite sides of the first electrode 31 along the direction perpendicular to its horizontal extension direction. With such an arrangement, the two pressure compensation devices 40 respectively connect and fix the opposite sides of the first electrode 31, so as to ensure balance and stability during the process of moving the first electrode 31, avoid relative movement of the first electrode 31 in the horizontal and vertical directions, and ensure the working effect of the pressure compensation device 40 on the first electrode 31.

[0048] Further, when the number of the pressure compensation devices 40 is two and the two pressure compensation devices 40 are simultaneously connected to the same first electrode 31, the elastic potential energy provided by each of the two pressure compensation devices 40 is half of that of one pressure compensation device 40, and the effect of the provided elastic potential energy is the same as that of one pressure compensation device 40.

[0049] In an embodiment of the present invention, as Figures 3 to 7 shown, the welding equipment 1 further includes a slide rail assembly 60. The slide rail assembly 60 includes a guide rail 61 and two sliders 63. The guide rail 61 is arranged on the frame 10 and is located below the pressurizing mechanism 20. The guide rail 61 extends along the extension direction of the driving shaft 23, and the two sliders 63 are both slidably arranged on the guide rail 61. The other first electrode 31 and the mounting seat 35 are respectively arranged on the two sliders 63.

[0050] The slide rail assembly 60 includes a guide rail 61 and two sliders 63. The two sliders 63 are respectively arranged below the fixing member 45 and the connecting seat 47. The arrangement of the guide rail 61 and the sliders 63 facilitates the movement of the pressure compensation device 40 and the welding mechanism 30, maintains the moving direction of the slide rail assembly 60 and the stability during movement. Moreover, the arrangement of the two sliders 63 can adapt to the movement process of the connecting seat 47 relative to the fixing member 45 during the release and compression processes of the elastic member 41, ensuring the moving stability of the pressure compensation device 40 and maintaining balance and stability during the process of moving the first electrode 31.

[0051] In an embodiment of the present invention, as Figure 3 , Figure 4 , Figure 7 shown, the number of the slide rail assemblies 60 is two. The two slide rail assemblies 60 are respectively arranged on the relative two sides along the direction vertically extending horizontally to the driving shaft 23 below the pressurizing mechanism 20, and one slide rail assembly 60 is respectively connected to one pressure compensation device 40.

[0052] In this embodiment, when the number of the pressure compensation devices 40 is two, the number of the slide rail assemblies 60 is also two. The two slide rail assemblies 60 are respectively arranged below the two pressure compensation devices 40, maintaining the moving direction of the slide rail assembly 60 and the stability during movement. Moreover, the arrangement of the two sliders 63 can adapt to the movement process of the connecting seat 47 relative to the fixing member 45 during the release and compression processes of the elastic member 41, ensuring the moving stability of the pressure compensation device 40 and maintaining balance and stability during the process of moving the first electrode 31.

[0053] In an embodiment of the present invention, as Figure 6 shown, a plurality of welding heads 311 are provided on the end faces of the two first electrodes 31 facing away from the driving shaft. The plurality of welding heads 311 are arranged at intervals along the extending direction of one first electrode 31 and are arranged in an array.

[0054] The number of the welding heads 311 is multiple. The multiple welding heads 311 can perform synchronous welding on different points on the welded part 2, thereby achieving the effect of multi-point welding of the welded part 2 and improving the welding efficiency. In this embodiment, since different numbers of welding heads 311 are provided on the two layers of the first electrodes 31, and the number of the welding heads 311 is proportional to the welding pressure, for the first electrode 31 with a larger number of welding heads 311, a greater welding pressure is required. Therefore, a pressure compensation device 40 needs to be provided to compensate for and increase the welding pressure.

[0055] In an embodiment of the present invention, as Figures 3 to 7 shown, the surface of the first electrode 31 facing away from the mounting seat 35 is a concave arc surface, and the surface of the second electrode 33 facing the first electrode 31 is a convex arc surface. The radian of the concave arc surface of the first electrode 31 is the same as that of the convex arc surface of the second electrode 33.

[0056] The welding surface of the first electrode 31 is an arc surface, and the welding surface of the second electrode 33 is an arc surface. The radian of the arc surface of the first electrode 31 is the same as that of the arc surface of the second electrode 33. Thus, the first electrode 31 and the second electrode 33 can be adapted to the arc-shaped pot body welding part 2, ensuring that when the welding part 2 is a furnace body or a pot body, the first electrode 31 and the second electrode 33 can closely adhere to the surface of the welding part 2, guaranteeing the welding effect.

[0057] In an embodiment of the present invention, as Figure 1 、 Figure 2 shown, the frame 10 includes a support base 11 located at the bottom and fixing plates 13 connected to opposite sides of the support base 11. The pressurizing mechanism 20 is disposed on one fixing plate 13, the driving shaft 23 passes through the fixing plate 13, and the second electrode 33 is disposed on the other fixing plate 13.

[0058] The setting of the support plate plays a role in stably installing and protecting the pressure compensation device 40 and the welding mechanism 30; the setting of the fixing plate 13, one fixing plate 13 plays a role in stabilizing the position of the pressurizing mechanism 20, and the other fixing plate 13 plays a role in stabilizing the position of the second electrode 33. The setting of the two fixing plates 13 can stabilize the horizontal positions of the driving member 21, the driving shaft 23, and the mounting plate, thereby maintaining the positions of the first electrode 31 and the second electrode 33. Furthermore, the stability and accuracy of the docking of multiple first electrodes 31 and second electrodes 33 are ensured, the connection direction and connection effect of the first electrode 31 and the second electrode 33 are guaranteed, the connection effect of the first electrode 31 and the second electrode 33 is ensured, and the welding effect is improved.

[0059] In an embodiment of the present invention, as Figure 1 、 Figure 2 shown, the heights of the two fixing plates 13 are different. The two first electrodes 31 are symmetrically distributed on opposite sides of the driving shaft 23 in the vertical direction and are correspondingly located on the center line of the second electrode 33.

[0060] The two first electrodes 31 are symmetrically distributed on opposite sides of the driving shaft 23 in the vertical direction and are correspondingly located on the center line of the second electrode 33, maintaining the horizontal positions of the driving member 21, the driving shaft 23, and the mounting plate. As Figure 1 、 Figure 2 、 Figure 8 shown, thereby maintaining the positions of the first electrode 31 and the second electrode 33. Furthermore, the stability and accuracy of the docking of multiple first electrodes 31 and second electrodes 33 are ensured, the connection direction and connection effect of the first electrode 31 and the second electrode 33 are guaranteed, the connection effect of the first electrode 31 and the second electrode 33 is ensured, and the welding effect is improved.

[0061] In an embodiment of the present invention, the welding device 1 further includes a transformer assembly 50. The transformer assembly 50 is disposed below the frame 10. The transformer assembly 50 includes a transformer 51 and a plurality of wiring copper bars 53. The transformer 51 is disposed below the welding mechanism 30. One ends of the plurality of wiring copper bars are electrically connected to the transformer 51 respectively, and the other ends are electrically connected to the two first electrodes 31 and the second electrode 33 respectively.

[0062] The plurality of wiring copper bars are electrically connected to the plurality of electrodes and the transformer 51 respectively. Further, the transformer 51 can provide current for the plurality of electrodes, and the transformer 51 can change the welding voltage according to different welding requirements and welding environments, so as to realize the change of the welding voltage and current.

[0063] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields shall be included in the patent protection scope of the present invention.

Claims

1. A welding device, characterized in that, Comprising: A frame (10); A pressing mechanism (20), the pressing mechanism (20) being provided on the frame (10), the pressing mechanism (20) including a driving member (21) and a driving shaft (23), the driving member (21) being drivingly connected to one end of the driving shaft (23); A welding mechanism (30), the welding mechanism (30) including a mounting base (35), two first electrodes (31) and a second electrode (33), the mounting base (35) being connected to the other end of the driving shaft (23), one of the first electrodes (31) being connected to the mounting base (35), the second electrode (33) being provided on the frame and located on one side of one of the first electrodes (31) away from the driving shaft (23) and being spaced apart from one of the first electrodes (31), the driving member (21) driving the driving shaft (23), the mounting base (35) and one of the first electrodes (31) to approach or move away from the second electrode (33); A pressure compensation device (40), the pressure compensation device (40) including at least two elastic members (41), a connecting rod (43), a fixing member and a connecting seat, the elastic coefficients of at least two of the elastic members (41) being different or the lengths of at least two of the elastic members being different, the connecting rod (43) being movably inserted through the mounting base (35) in the moving direction of the mounting base (35), the end of the connecting rod (43) away from the driving shaft (23) being connected to the other first electrode (31), the elastic member (41) being detachably sleeved on the connecting rod (43), the two ends of the elastic member (41) respectively abutting against the mounting base (35) and the other first electrode (31), the fixing member (45) being detachably connected to one surface of the mounting base (35), the connecting rod (43) being movably inserted through the fixing member (45), the connecting seat (47) being detachably connected to one side of the first electrode (31), the two ends of the elastic member (41) respectively abutting against the fixing member (45) and the connecting seat (47); A slide rail assembly, the slide rail assembly (60) including a guide rail (61) and two sliders (63), the guide rail (61) being provided on the frame (10) and located below the pressing mechanism (20), the guide rail (61) extending along the extending direction of the driving shaft (23), the two sliders (63) both being slidably provided on the guide rail (61), the other first electrode (31) and the mounting base (35) being respectively provided on the two sliders (63); The number of the slide rail assemblies (60) is two, the two slide rail assemblies (60) being respectively provided on the relative two sides of the pressing mechanism (20) along the direction vertically perpendicular to the horizontal extending direction of the driving shaft (23), one of the slide rail assemblies (60) being respectively correspondingly connected to one of the pressure compensation devices (40); The surface of the first electrode (31) facing away from the mounting base (35) is a concave arc surface, and the surface of the second electrode (33) facing the first electrode (31) is a convex arc surface. The radian of the concave arc surface of the first electrode (31) is the same as that of the convex arc surface of the second electrode (33). The frame (10) includes a support base (11) at the bottom and fixing plates (13) connected to opposite sides of the support base (11). The pressing mechanism (20) is provided on one of the fixing plates (13), the drive shaft (23) passes through the fixing plate (13), and the second electrode (33) is provided on the other fixing plate (13).

2. The welding device according to claim 1, characterized in that, The number of the pressure compensation devices (40) is two. The two fixing members (45) are respectively provided on opposite sides of the mounting base (35) along the direction perpendicular to the extension direction of the drive shaft (23), and the two connecting seats (47) are respectively provided at both ends of the first electrode (31) along its extension direction.

3. The welding device according to claim 2, characterized in that, A plurality of welding heads (311) are provided on the end surfaces of the two first electrodes (31) facing away from the drive shaft. The plurality of welding heads (311) are arranged at intervals along the extension direction of one of the first electrodes (31) and are arranged in an array.

4. The welding device according to claim 3, characterized in that, The heights of the two fixing plates (13) are different. The two first electrodes (31) are symmetrically distributed on opposite sides of the drive shaft (23) in the vertical direction and are correspondingly located on the center line of the second electrode (33).

5. The welding device according to claim 1, characterized in that, The welding device further includes a transformer assembly (50). The transformer assembly (50) is provided below the frame (10). The transformer assembly (50) includes a transformer (51) and a plurality of wiring copper bars (53). The transformer (51) is provided below the welding mechanism (30). One ends of the plurality of wiring copper bars are electrically connected to the transformer (51), and the other ends are respectively electrically connected to the two first electrodes (31) and the second electrode (33).

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