Directional resistor welding device based on electromagnetic principle

Abstract

The invention discloses a resistor directional welding device based on an electromagnetic principle, the directional welding device comprises a welding table, two groups of clamping assemblies, a group of extrusion assemblies and an electromagnetic assembly, the two ends of the welding table are respectively provided with the clamping assemblies, the extrusion assemblies are arranged in the middle of the welding table, and the electromagnetic assembly is arranged in the middle of the welding table. The electromagnetic assembly is located on one side of the extrusion assembly, the clamping assembly clamps workpieces of different shapes, and the extrusion assembly is formed by tightly connecting the two workpieces. The clamping assembly clamps workpieces of different shapes and is electrically connected with the workpieces so that the workpieces can be communicated with the power supply electrode, the extrusion assembly extrudes the workpieces so that the two workpieces can be tightly connected, the two sets of workpieces can be welded together through resistance heat after being communicated, and automation of the process that the two workpieces are connected together is achieved. And welding accidents caused by hand holding of workers during workpiece welding are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a resistance directional welding device based on electromagnetic principle. Background Art

[0002] Resistance welding refers to a welding method that uses the resistance heat generated by the current passing through the contact end faces of the workpieces as a heat source to locally heat the workpieces, and uses the resistance heat effect generated by the current flowing through the contact end faces of the workpieces and the adjacent areas to heat them to a molten or plastic state, while applying pressure to form a metal bond. During welding, no filler metal is required, the productivity is high, the weldment deformation is small, and automation is easy to achieve.

[0003] At the same time, because resistance welding uses the resistance heat effect generated by electric current for welding, there are certain safety hazards in the welding process, which may cause workers to be injured or even endanger their lives due to electric shock.

[0004] Moreover, the existing resistance welding devices have the following technical problems: 1. When welding overlapping workpieces, the heating of the overlapping parts of the workpieces, i.e., the contact interface between the workpieces, is insufficient; 2. The current path is fixed, and the heating part cannot be variably controlled in the thickness direction of the workpiece, making it difficult to preferentially heat and melt the specified parts, which may reduce the welding quality. Summary of the invention

[0005] The object of the present invention is to provide a resistance directional welding device based on electromagnetic principle to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a resistance directional welding device based on electromagnetic principle, characterized in that: the directional welding device includes a welding table, two groups of clamping components, a group of extrusion components and an electromagnetic component, the clamping components are respectively arranged at both ends of the welding table, the extrusion component is arranged in the middle of the welding table, the electromagnetic component is arranged in the middle of the welding table, and the electromagnetic component is located on one side of the extrusion component. The clamping component clamps workpieces of different shapes, and the extrusion component tightly connects two workpieces; the clamping component clamps workpieces of different shapes and electrically connects the workpieces to connect the workpieces with the power supply electrode, the extrusion component squeezes the workpieces to tightly connect the two workpieces, and the two groups of workpieces are welded together by resistance heat after being connected, and the process of connecting the two workpieces together is automated to avoid welding accidents caused by workers holding the workpieces during welding.

[0007] The welding table includes an upper shell and a lower shell. Two groups of support plates are arranged between the upper shell and the lower shell, and the support plates are respectively fixed to the upper shell and the lower shell. The upper shell and the lower shell cooperate with each other to provide support for the setting of the clamping assembly, the extrusion assembly and the electromagnetic assembly. The electromagnetic assembly generates an electric field in the workpiece through a changing magnetic field, thereby causing the position of electrons in the workpiece to change, so that the electrons are accumulated on the side that needs to be welded, thereby improving the welding effect.

[0008] Each group of the clamping components includes an upper clamping mechanism and a lower clamping mechanism. The upper clamping mechanism is arranged on the upper shell body, and the lower clamping mechanism is arranged in the lower shell body. The upper clamping mechanism and the lower clamping mechanism have the same structure, and the upper clamping mechanism and the lower clamping mechanism are symmetrically arranged on the welding table; the upper clamping mechanism and the lower clamping mechanism cooperate with each other to clamp the workpiece, and the upper clamping mechanism and the lower clamping mechanism automatically change their own shapes according to the shape of the workpiece, so as to achieve clamping of workpieces of different shapes. The two groups of clamping components cooperate with each other to make the two electrically connected to the circuit, so that current flows in the workpiece, and then the two groups of workpieces complete resistance welding.

[0009] The extrusion assembly includes an upper extrusion mechanism and a lower extrusion mechanism, which are symmetrically arranged on the welding table, the upper extrusion mechanism is arranged on the upper shell, and the lower extrusion mechanism is arranged on the lower shell. The upper extrusion mechanism and the lower extrusion mechanism cooperate with each other to bring two workpieces close to each other and connect them together. The upper extrusion mechanism and the lower extrusion mechanism cooperate with each other to extrude the workpieces; the upper extrusion mechanism and the lower extrusion mechanism cooperate with each other to extrude the two workpieces, thereby increasing the welding effect. The extrusion mechanism brings the two workpieces close to each other by rotating the internal structure.

[0010] The electromagnetic assembly includes two groups of horizontal plates and two groups of vertical plates. The two groups of horizontal plates are respectively arranged on the upper shell and the lower shell, and the two groups of vertical plates are respectively arranged on the two groups of support plates. The middle position of the two groups of horizontal plates is provided with a first electromagnetic plate, and the middle position of the two groups of vertical plates is provided with a second electromagnetic plate. The first electromagnetic plate and the second electromagnetic plate are respectively distributed around the workpiece, and a changing magnetic field is generated on the two groups of first electromagnetic plates, and a uniform magnetic field is generated on the second electromagnetic plate. The changing magnetic field generates an electric field in the workpiece, so that the distribution of electrons in the workpiece changes. The second electromagnetic plate offsets the movement trajectory of electrons through the uniform magnetic field, so that the electrons accumulate on the side of the workpiece that needs to be welded.

[0011] The upper clamping mechanism includes a clamping cylinder, two groups of thrust plates and a clamping plate. The clamping cylinder is arranged in the upper shell body. A connecting plate is arranged on the clamping cylinder. The two groups of thrust plates are arranged on the connecting plate. The clamping plate is arranged on the two groups of thrust plates. The two groups of thrust plates are slidingly connected to the upper shell body. The thrust plates are rotatably connected to the connecting plates. The thrust plates are rotatably connected to the clamping plates. The thrust plate can be retracted into the upper shell body, and the thrust plate moves under the push of the clamping cylinder and clamps the workpiece through the clamping plate. The upper and lower groups of clamping plates cooperate with each other to clamp the workpiece. The thrust plate is rotatably connected to the connecting plate and the clamping plate and is also slidably connected to the clamping plate. When the clamping plate contacts the workpiece with a cylindrical structure, the thrust plate is subjected to an outward sliding force and slides outward on the clamping plate under the push of the clamping cylinder, so that the two ends of the clamping plate are subjected to force, the middle part of the clamping plate is subjected to the upward force of the workpiece, and the two ends are subjected to the downward force of the thrust plate, so that the clamping plate is bent and fits on the workpiece, thereby achieving clamping of workpieces of different shapes.

[0012] The two groups of thrust plates each include a first rotating plate and a second rotating plate, one end of the first rotating plate is rotatably connected to the connecting plate, the other end of the first rotating plate is rotatably connected to the second rotating plate, and the other end of the second rotating plate is rotatably connected to the clamping plate, and one end of each group of the second rotating plates connected to the clamping plate is subjected to force on one side. A triangular plate is cut off from the second rotating plate connected to the clamping plate, so that the second rotating plate is subjected to force on one side. When the clamping cylinder pushes the thrust plate downward, the second rotating plate is subjected to force on one side and slides on the clamping plate, so that both sides of the clamping plate are subjected to thrust from the thrust plate, so that the force on the clamping plate is more uniform.

[0013] A slider slot is provided on the clamping plate, and guide slots are provided on both sides of the slider slot inside the clamping plate. A movable slider is provided in the slider slot, and the movable slider is slidably connected to the guide slot, and the movable slider is rotatably connected to the second rotating plate. A resistance increasing plate is provided at the lower end of the clamping plate, and a positioning slot is provided in the middle of the lower end of the resistance increasing plate.

[0014] The upper extrusion mechanism has the same structure as the lower extrusion mechanism, and includes an extrusion plate and a base. The base is arranged in the upper shell, and extrusion cylinders are arranged at both ends of the base. A linkage shell is arranged on the extrusion cylinder. Sealing plates are arranged on the left and right sides of the linkage shell inside the upper shell. Both groups of extrusion cylinders are connected to the extrusion plate. A positioning cylinder is arranged in the middle of the linkage shell, and the positioning cylinder is rotatably connected to the extrusion plate. The four sides of the linkage shell are slidably connected to the inner wall of the upper shell and the two groups of sealing plates respectively. The linkage shell forms a sealed space inside the upper shell, and the sealed space is connected to the extrusion plate. The extrusion cylinder makes the linkage shell rise or fall together with the extrusion plate, and the extrusion cylinder provides power for the extrusion plate to extrude the workpiece.

[0015] The positioning cylinder is provided with a motor housing, a motor is provided in the motor housing, a transmission shaft is provided on the motor, the transmission shaft is rotatably connected with the extrusion plate, an ion blower is provided on the linkage housing, and a sealing ring is provided between the upper housing and the extrusion plate.

[0016] The extrusion plate is provided with a mounting groove, and neutralizing blades and rotating blades are arranged in the mounting groove from top to bottom. The mounting groove is connected to the interior of the upper shell, and a T-shaped rotating groove is provided in the middle of the neutralizing blade, and gear teeth are provided at the T-shaped end of the rotating groove. An inverted T-shaped extrusion chute is provided in the middle of the rotating blade, and a bearing is provided inside the extrusion chute. Gear teeth are provided above the bearing inside the extrusion chute. An upper linkage plate and a lower linkage plate are provided on the transmission shaft from top to bottom, and the upper linkage plate is located in the rotating groove, and the lower linkage plate is located in the extrusion chute. The motor drives the upper linkage plate and the lower linkage plate to rotate through the transmission shaft. When the lower linkage plate is engaged with the gear teeth on the rotating blade, the upper linkage plate is slidably connected with the rotating groove. When the lower linkage plate is separated from the gear teeth in the extrusion chute and contacts the bearing, the upper linkage plate is engaged with the gear teeth in the rotating groove. By switching, the position of the workpiece can be adjusted and static electricity neutralization can be achieved.

[0017] A changing magnetic field or a uniform magnetic field is generated between the two groups of the first electromagnetic plates and between the two groups of the second electromagnetic plates. When a changing magnetic field is generated between the two groups of the first electromagnetic plates, a uniform magnetic field is generated between the two groups of the second electromagnetic plates, or a uniform magnetic field is generated between the two groups of the first electromagnetic plates and a changing magnetic field is generated between the two groups of the second electromagnetic plates. When the changing magnetic field is generated, an electric field is generated on the workpiece, and the electric field changes the position distribution of the electrons. At the same time, the movement trajectory of the electrons is changed by the uniform magnetic field, so that the electrons accumulate on one side of the end of the workpiece to be welded.

[0018] The first rotating plate and the connecting plate are rotationally connected via a first torsion spring, and the first rotating plate and the second rotating plate are rotationally connected via a second torsion spring. The stiffness coefficient of the first torsion spring is greater than the stiffness coefficient of the second torsion spring.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. By guiding the movement of electrons through the magnetic field, the electrons are accumulated on one side, reducing the area where the workpiece generates heat when the electrons flow, so that the heat is concentrated on one side of the workpiece and dissipated, thereby improving the welding effect; through the accumulation and flow of electrons, the two workpieces are preheated before welding to avoid direct passage of a large amount of current, which will instantly generate a large amount of heat and cause damage to the workpiece, thereby increasing the service life of the workpiece after welding.

[0020] 2. The extrusion assembly extrude the workpieces to connect the two workpieces tightly. After the two sets of workpieces are connected, they are welded together by resistance heat. The process of connecting the two workpieces together is automated to avoid welding accidents caused by workers holding the workpieces during welding.

[0021] 3. The clamping assembly can clamp workpieces of different shapes, and cooperate with the extrusion assembly to fix them in the welding table. The clamping assembly can clamp plate workpieces and cylindrical workpieces to achieve clamping of multiple pieces. Compared with the existing resistance welding device that replaces the clamping assembly for clamping workpieces of different shapes, the structure of the clamping assembly in the present application is simpler and the cost of use is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a left view of the overall structure of the present invention; Figure 2 It is a front half-section view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of the workpieces of the present invention when they are stacked and welded; Figure 4 It is a schematic diagram of the structure of the extrusion assembly of the present invention; Figure 5 It is a schematic diagram of the internal structure of the extruded plate of the present invention; Figure 6 It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the clamping assembly of the present invention when clamping a plate; Figure 8 It is a schematic structural diagram of the clamping assembly of the present invention when clamping a cylindrical workpiece.

[0023] In the figure: 2, clamping assembly; 3, extrusion assembly; 5, first workpiece; 6, second workpiece; 7, third workpiece; 1-1, upper shell; 1-2, lower shell; 1-3, support plate; 2-1, clamping plate; 2-2, thrust plate; 2-3, clamping cylinder; 2-4, connecting plate; 2-5, movable slider; 2-11, slider slot; 2-12, guide slot; 2-13, resistance plate; 2-21, first rotating plate; 2-22, second rotating plate; 3-1, extrusion plate; 3-2, base ;3-3, extrusion cylinder;3-4, linkage shell;3-5, sealing plate;3-6, ion fan;3-7, positioning cylinder;3-8, motor shell;3-9, transmission shaft;3-10, sealing ring;3-11, rotating blades;3-12, neutralizing blades;3-13, extrusion slide;3-14, bearing;3-15, upper linkage plate;3-16, lower linkage plate;3-17, mounting groove;4-1, horizontal plate;4-2, vertical plate;4-3, first electromagnetic plate;4-4, second electromagnetic plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 8 The present invention provides a technical solution: a resistance directional welding device based on the electromagnetic principle, characterized in that: the directional welding device includes a welding table, two groups of clamping components 2, a group of extrusion components 3 and an electromagnetic component, the clamping components 2 are respectively arranged at both ends of the welding table, the extrusion component 3 is arranged in the middle of the welding table, the electromagnetic component is arranged in the middle of the welding table, the electromagnetic component is located on one side of the extrusion component 3, the clamping component 2 clamps workpieces of different shapes, and the extrusion component 3 tightly connects two workpieces.

[0026] The welding table includes an upper shell 1-1 and a lower shell 1-2. Two groups of support plates 1-3 are arranged between the upper shell 1-1 and the lower shell 1-2. The support plates 1-3 are respectively fixed to the upper shell 1-1 and the lower shell 1-2. The upper shell 1-1 and the lower shell 1-2 are both hollow structures. The support plates 1-3 are used to connect the upper shell 1-21 and the lower shell 1-2.

[0027] Each clamping assembly 2 includes an upper clamping mechanism and a lower clamping mechanism. The upper clamping mechanism is installed on the upper shell 1-1, and the lower clamping mechanism is installed in the lower shell 1-2. The upper clamping mechanism and the lower clamping mechanism have the same structure. The upper clamping mechanism and the lower clamping mechanism are symmetrically arranged on the welding table. The upper clamping mechanism includes a clamping cylinder 2-3, two sets of thrust plates 2-2 and a clamping plate 2-1. The clamping cylinder 2-3 is installed inside the upper shell 1-1. A connecting plate 2-4 is installed on the cylinder rod of the clamping cylinder 2-3. The two sets of thrust plates 2-2 are rotatably installed on the connecting plate 2-4. The clamping plate 2-1 is installed on the two sets of thrust plates 2-2. The two sets of thrust plates 2-2 are slidingly connected to the upper shell 1-1. The thrust plates 2-2 can be retracted into the upper shell 1-1. The thrust plates 2-2 are rotatably connected to the clamping plate 2-1.

[0028] The two sets of thrust plates 2-2 each include a first rotating plate 2-21 and a second rotating plate 2-22. One end of the first rotating plate 2-21 is rotatably connected to the connecting plate 2-4, and the other end of the first rotating plate 2-21 is rotatably connected to the second rotating plate 2-22.

[0029] The first rotating plate 2-21 and the connecting plate 2-4 are rotationally connected via a first torsion spring, and the first rotating plate 2-21 and the second rotating plate 2-22 are rotationally connected via a second torsion spring, and the stiffness coefficient of the first torsion spring is greater than the stiffness coefficient of the second torsion spring.

[0030] Two groups of slider grooves 2-11 are provided on the clamping plate 2-1, and guide grooves 2-12 are provided on both sides of the slider grooves 2-11 inside the clamping plate 2-1. Movable sliders 2-5 are slidably installed in the two groups of slider grooves 2-11. Both sides of the movable slider 2-5 are slidably connected to the guide grooves 2-12 through pillars. One side of the upper end of the movable slider 2-5 is rotatably connected to the second rotating plate 2-22, and one end of the second rotating plate 2-22 that is rotatably connected to the movable groove 2-5 is subjected to single-sided force.

[0031] A resistance increasing plate 2-13 is installed at the lower end of the clamping plate 2-1. The resistance increasing plate 2-13 is a plate made of rubber material, and a positioning groove is opened in the middle of the lower end of the resistance increasing plate 2-13.

[0032] The extrusion assembly 3 includes an upper extrusion mechanism and a lower extrusion mechanism, which are symmetrically arranged on the welding table. The upper extrusion mechanism is installed on the upper shell 1-1, and the lower extrusion mechanism is installed on the lower shell 1-2. The upper extrusion mechanism and the lower extrusion mechanism cooperate with each other to make the two workpieces close to each other and connected together. The upper extrusion mechanism and the lower extrusion mechanism cooperate with each other to extrude the workpieces.

[0033] The upper extrusion mechanism has the same structure as the lower extrusion mechanism. The upper extrusion mechanism includes an extrusion plate 3-1 and a base 3-2. The base 3-2 is fixed inside the upper shell 1-1. Extrusion cylinders 3-3 are fixedly installed at both ends of the base 3-2. A linkage shell 3-4 is installed on the cylinder rod of the extrusion cylinder 3-3. Sealing plates 3-5 are fixed on the left and right sides of the linkage shell 3-4 inside the upper shell 1-1. The four sides of the linkage shell 3-4 are slidably connected to the inner wall of the upper shell 1-1 and the two groups of sealing plates 3-5 respectively. A through groove is opened on the upper shell 1-1 above the extrusion plate 3-1.

[0034] The two groups of extrusion cylinders 3-3 are connected to the extrusion plate 3-1, and a positioning cylinder 3-7 is fixedly installed in the middle position of the linkage shell 3-4. The positioning cylinder 3-7 is installed with a motor shell 3-8 through a support plate. A motor is installed in the motor shell 3-8. The upper shaft of the motor is connected to a transmission shaft 3-9, and the other end of the transmission shaft 3-9 is rotatably connected to the extrusion plate 3-1. An ion fan 3-6 is installed on the linkage shell 3-4, and a sealing ring 3-10 is installed between the upper shell 1-1 and the extrusion plate 3-1.

[0035] The extrusion plate 3-1 is provided with an installation groove 3-17, which is connected to the interior of the upper shell 1-1. The installation groove 3-17 is provided with a neutralizing blade 3-12 and a rotating blade 3-11 which are rotatably installed from top to bottom. The rotating blade 3-11 is obliquely installed in the extrusion plate 3-1 (not shown in the figure). The rotating blade 3-11 is arranged obliquely so that the rotating blade 3-11 contacts the workpiece on one side, so that the workpiece is only subjected to forward power or backward power. A T-shaped rotating groove is provided in the middle of the neutralizing blade 3-12, and gear teeth are processed on the T-shaped end of the rotating groove. An inverted T-shaped extrusion groove 3-13 is opened in the middle of the moving fan blade 3-11, and a bearing 3-14 is fixed inside the extrusion groove 3-13. The bearing 3-14 is preferably a thrust ball bearing. Gear teeth are processed inside the extrusion groove 3-13 above the bearing 3-14. An upper linkage plate 3-15 and a lower linkage plate 3-16 are installed on the transmission shaft 3-9 from top to bottom. The upper linkage plate 3-15 is located in the rotating groove, and the lower linkage plate 3-16 is located in the extrusion groove 3-13. The upper linkage plate 3-15 and the lower linkage plate 3-16 are both provided with second gear teeth matching the gear teeth.

[0036] When the gear teeth on the lower linkage plate 3-16 are meshed with the gear teeth on the rotating blade 3-11, the upper linkage plate 3-15 is slidably connected with the rotating groove in the horizontal direction. When the upper linkage plate 3-15 is located inside the rotating groove and is meshed with the gear teeth, the lower linkage plate 3-16 is disengaged from the gear teeth of the rotating blade 3-11 and contacts the bearing 3-14.

[0037] The electromagnetic assembly includes two groups of horizontal plates 4-1 and two groups of vertical plates 4-2. The two groups of horizontal plates 4-1 are respectively installed on the upper shell 1-1 and the lower shell 1-2, and the two groups of vertical plates 4-2 are respectively installed on the two groups of support plates 1-3. The first electromagnetic plate 4-3 is installed in the middle position of the two groups of horizontal plates 4-1, and the second electromagnetic plate 4-4 is installed in the middle position of the two groups of vertical plates 4-2. Coils are arranged in the first electromagnetic plate 4-3 and the second electromagnetic plate 4-2.

[0038] A changing magnetic field or a uniform magnetic field is generated between the two groups of first electromagnetic plates 4-3 and between the two groups of second electromagnetic plates 4-4. The two groups of first electromagnetic plates 4-3 are respectively located between the extrusion plate 3-1 and the upper shell 1-1, and the cylinder rod of one group of extrusion cylinders 3-3 passes through the first electromagnetic plate 4-3.

[0039] Working principle of the present invention: The first workpiece 5 and the second workpiece 6 to be welded are respectively inserted into the welding table from both ends thereof, and the vertical plate 4-2 guides the forward direction of the first workpiece 5 and the second workpiece 6. When the first workpiece 5 and the second workpiece 6 arrive at the corresponding workstations, the clamping cylinder 2-3 starts to work, so that the clamping plate 2-1 clamps the first workpiece 5 or the second workpiece 6 driven by the thrust plate 2-2. At the same time, the extrusion plate 3-1 extrudes the ends of the first workpiece 5 and the second workpiece 6 to be welded driven by the extrusion cylinder 3-3.

[0040] Before the first workpiece 5 and the second workpiece 6 come into contact, one of the workpieces is energized first, that is, the electrode of the power supply is connected separately, and it is the negative electrode. The power supply is direct current, and the negative electrode is electrically connected to the workpiece, so that the workpiece is filled with electrons. When the workpiece is between the first electromagnetic plate 4-3 and the second electromagnetic plate 4-4, the electrons in the workpiece are distributed on one side of the end that needs to be welded through the changing magnetic field and the uniform magnetic field. When the two workpieces are in contact, the other workpiece is also connected to the negative electrode of the power supply, and electrons flow into the other workpiece. The flow of electrons is electric current. The current flows at the end where the two workpieces are in contact, so that heat is generated between the two workpieces, and the end of the two workpieces that need to be welded is preheated by the heat.

[0041] When another workpiece is connected to the other electrode of the power supply, a large current flows between the two workpieces, so that the two workpieces are welded by resistance heat, thereby realizing the welding work of the two workpieces.

[0042] By guiding the movement of electrons through the magnetic field, the electrons are accumulated on one side, reducing the area where the workpiece generates heat when the electrons flow, so that the heat is concentrated on one side of the workpiece and dissipated, thereby improving the welding effect; through the accumulation and flow of electrons, the two workpieces are preheated before welding, avoiding the direct passage of a large amount of current, which will instantly generate a large amount of heat and cause damage to the workpiece, thereby increasing the service life of the workpiece after welding.

[0043] After the first workpiece 5 and the second workpiece 6 are placed in the corresponding workstations, the motor drives the upper linkage plate 3-15 and the lower linkage plate 3-16 to rotate through the transmission shaft 3-9. In the initial state, the lower linkage plate 3-16 is meshed with the rotating blades 3-11, and the lower linkage plate 3-16 drives the rotating blades 3-11 to rotate. The rotating blades 3-11 drive the movement of the workpieces in the welding table by rotating. The rotating blades 3-11 generate forward power and power to move left or right for the workpieces by rotating. Since the left and right directions are blocked by the vertical plate 4-2, the workpieces can only move forward, and both groups of workpieces move forward, thereby achieving a close connection between the two workpieces.

[0044] After the two workpieces are tightly connected together and the two workpieces are energized for welding, the positioning cylinder 3-7 works, so that the motor housing 3-8 drives the motor to move, thereby moving the transmission shaft 3-9, so that the upper linkage plate 3-15 and the neutralizing blade 3-12 are meshed, and the lower linkage plate 3-16 is against the bearing 3-14, so that the rotating blade 3-11 is fixed in the extrusion plate 3-1, and the neutralizing blade 3-12 is driven by the motor to rotate. The rotation of the neutralizing blade 3-12 blows the ions generated by the ion fan 3-6 to the workpiece through the rotating blade 3-11, which is used to neutralize the static electricity generated during the welding of the workpiece, and is also used to cool the workpiece.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Resistance directional welding device based on electromagnetic principle, characterized by: The directional welding device comprises a welding table, two groups of clamping assemblies (2), a group of extrusion assemblies (3) and an electromagnetic assembly, wherein the clamping assemblies (2) are respectively arranged at both ends of the welding table, the extrusion assembly (3) is arranged at the middle of the welding table, the electromagnetic assembly is arranged at the middle of the welding table, and the electromagnetic assembly is located on one side of the extrusion assembly (3), the clamping assembly (2) clamps workpieces of different shapes, and the extrusion assembly (3) tightly connects two workpieces; The welding platform comprises an upper shell (1-1) and a lower shell (1-2), two groups of support plates (1-3) are arranged between the upper shell (1-1) and the lower shell (1-2), and the support plates (1-3) are respectively fixed to the upper shell (1-1) and the lower shell (1-2); Each group of the clamping assemblies (2) comprises an upper clamping mechanism and a lower clamping mechanism, the upper clamping mechanism being arranged on the upper shell (1-1), and the lower clamping mechanism being arranged in the lower shell (1-2), the upper clamping mechanism and the lower clamping mechanism having the same structure, and the upper clamping mechanism and the lower clamping mechanism being symmetrically arranged on the welding table; The extrusion assembly (3) comprises an upper extrusion mechanism and a lower extrusion mechanism, the upper extrusion mechanism and the lower extrusion mechanism are symmetrically arranged on the welding table, the upper extrusion mechanism is arranged on the upper shell (1-1), and the lower extrusion mechanism is arranged on the lower shell (1-2), the upper extrusion mechanism and the lower extrusion mechanism cooperate with each other to make two workpieces approach each other and connect together, and the upper extrusion mechanism and the lower extrusion mechanism cooperate with each other to extrude the workpieces; The electromagnetic assembly comprises two groups of horizontal plates (4-1) and two groups of vertical plates (4-2); the two groups of horizontal plates (4-1) are respectively arranged on the upper shell (1-1) and the lower shell (1-2); the two groups of vertical plates (4-2) are respectively arranged on the two groups of support plates (1-3); the middle positions of the two groups of horizontal plates (4-1) are both provided with first electromagnetic plates (4-3); the middle positions of the two groups of vertical plates (4-2) are both provided with second electromagnetic plates (4-4).

2. The resistance directional welding device based on electromagnetic principle according to claim 1, characterized in that: The upper clamping mechanism comprises a clamping cylinder (2-3), two groups of thrust plates (2-2) and a clamping plate (2-1); the clamping cylinder (2-3) is arranged in the upper shell (1-1); a connecting plate (2-4) is arranged on the clamping cylinder (2-3); the two groups of thrust plates (2-2) are arranged on the connecting plate (2-4); the clamping plate (2-1) is arranged on the two groups of thrust plates (2-2); the two groups of thrust plates (2-2) are slidably connected to the upper shell (1-1); the thrust plates (2-2) are rotatably connected to the connecting plate (2-4); and the thrust plates (2-2) are rotatably connected to the clamping plate (2-1).

3. The resistance directional welding device based on electromagnetic principle according to claim 2 is characterized in that: The two groups of thrust plates (2-2) each comprise a first rotating plate (2-21) and a second rotating plate (2-22); one end of the first rotating plate (2-21) is rotatably connected to the connecting plate (2-4); the other end of the first rotating plate (2-21) is rotatably connected to the second rotating plate (2-22); the other end of the second rotating plate (2-22) is rotatably connected to the clamping plate (2-1); and one end of each group of the second rotating plates (2-22) connected to the clamping plate (2-1) is subjected to unilateral force.

4. The resistance directional welding device based on electromagnetic principle according to claim 3 is characterized in that: The clamping plate (2-1) is provided with a slider slot (2-11), and the clamping plate (2-1) is provided with guide slots (2-12) on both sides of the slider slot (2-11). A movable slider (2-5) is provided in the slider slot (2-11), and the movable slider (2-5) is slidably connected to the guide slot (2-12). The movable slider (2-5) is rotatably connected to the second rotating plate (2-22). A resistance increasing plate (2-13) is provided at the lower end of the clamping plate (2-1), and a positioning slot is provided in the middle of the lower end of the resistance increasing plate (2-13).

5. The resistance directional welding device based on electromagnetic principle according to claim 4 is characterized in that: The upper extrusion mechanism has the same structure as the lower extrusion mechanism, and comprises an extrusion plate (3-1) and a base (3-2). The base (3-2) is arranged in the upper shell (1-1). Extrusion cylinders (3-3) are arranged at both ends of the base (3-2). A linkage shell (3-4) is arranged on the extrusion cylinder (3-3). Sealing plates (3-5) are arranged on the left and right sides of the linkage shell (3-4) inside the upper shell (1-1). Both groups of the extrusion cylinders (3-3) are connected to the extrusion plate (3-1). A positioning cylinder (3-7) is arranged in the middle of the linkage shell (3-4). The positioning cylinder (3-7) is rotatably connected to the extrusion plate (3-1).

6. The resistance directional welding device based on electromagnetic principle according to claim 5, characterized in that: The positioning cylinder (3-7) is provided with a motor housing (3-8), a motor is provided in the motor housing (3-8), a transmission shaft (3-9) is provided on the motor, the transmission shaft (3-9) is rotatably connected to the extrusion plate (3-1), an ion fan (3-6) is provided on the linkage housing (3-4), and a sealing ring (3-10) is provided between the upper housing (1-1) and the extrusion plate (3-1).

7. The resistance directional welding device based on electromagnetic principle according to claim 6 is characterized in that: The extrusion plate (3-1) is provided with a mounting groove (3-17), and a neutralizing blade (3-12) and a rotating blade (3-11) are arranged in the mounting groove (3-17) from top to bottom. The mounting groove (3-17) is communicated with the interior of the upper shell (1-1), and a T-shaped rotating groove is provided in the middle of the neutralizing blade (3-12), and gear teeth are provided at the T-shaped end of the rotating groove. The rotating blade (3-11) is provided with an inverted T-shaped extrusion groove in the middle. A pressure slide groove (3-13) is provided with a bearing (3-14) inside the pressure slide groove (3-13), and gear teeth are provided above the bearing (3-14) inside the pressure slide groove (3-13). An upper linkage plate (3-15) and a lower linkage plate (3-16) are provided on the transmission shaft (3-9) from top to bottom. The upper linkage plate (3-15) is located in the rotating groove, and the lower linkage plate (3-16) is located in the pressure slide groove (3-13).

8. The resistance directional welding device based on electromagnetic principle according to claim 7, characterized in that: A variable magnetic field or a uniform magnetic field is generated between the two groups of the first electromagnetic plates (4-3) and between the two groups of the second electromagnetic plates (4-4).

9. The resistance directional welding device based on electromagnetic principle according to claim 8, characterized in that: The first rotating plate (2-21) and the connecting plate (2-4) are rotationally connected via a first torsion spring, and the first rotating plate (2-21) and the second rotating plate (2-22) are rotationally connected via a second torsion spring, wherein the spring constant of the first torsion spring is greater than the spring constant of the second torsion spring.

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