Resistance directional welding device based on electromagnetic principle

Abstract

The present invention discloses a resistance directional welding device based on electromagnetic principles. The directional welding device includes a welding table, two sets of clamping assemblies, a set of extrusion assemblies, and an electromagnetic assembly. Clamping assemblies are respectively provided at both ends of the welding table, and an extrusion assembly is provided in the middle of the welding table. The electromagnetic assembly is provided in the middle of the welding table and is located on one side of the extrusion assembly. The clamping assembly clamps workpieces of different shapes, and the extrusion assembly tightly connects two workpieces. The clamping assembly clamps the workpieces of different shapes and electrically connects them to the power supply electrode, connecting the workpieces to the power supply electrode. The extrusion assembly squeezes the workpieces to tightly connect the two workpieces. After the two sets of workpieces are connected, they are welded together through resistance heat. The process of connecting the two workpieces is automated, avoiding welding accidents caused by workers holding the workpieces during welding.

Description

Technical Field

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

[0002] Resistance welding is a welding method that uses the resistance heat generated by an electric current passing through the contact surfaces of the workpieces as a heat source to locally heat the workpieces. The resistance heat generated by the current flowing through the contact surfaces and adjacent areas heats the workpieces to a molten or plastic state, while simultaneously applying pressure to form a metallic bond. The welding process does not require filler metal, resulting in high productivity, minimal weld deformation, and ease of automation.

[0003] At the same time, precisely 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] Furthermore, existing resistance welding devices have the following technical problems: 1. When welding overlapping workpieces, the overlapping areas, i.e., the contact interfaces between the workpieces, are not heated sufficiently; 2. The current path is fixed, and the heating area cannot be variably controlled in the thickness direction of the workpieces, making it difficult to preferentially heat and melt a predetermined area, which may result in reduced welding quality. Summary of the Invention

[0005] The object of the present invention is to provide a resistance directional welding device based on electromagnetic principles 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 principles, 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 provided at both ends of the welding table, and the extrusion component is provided in the middle of the welding table, the electromagnetic component is provided 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 extrude 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 sets of support plates are arranged between the upper shell and the lower shell, and the support plates are fixed to the upper shell and the lower shell respectively. 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, causing the electrons to accumulate 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, and the lower clamping mechanism is arranged in the lower shell. 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, thereby realizing the 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 the 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 through the rotation of 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 the two groups of first electromagnetic plates generate a changing magnetic field, and the second electromagnetic plate generates a uniform magnetic field. 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 motion trajectory of the 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. 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. The thrust plates are rotatably connected to the connecting plate. The thrust plates are rotatably connected to the clamping plate. The thrust plate can be retracted into the upper shell, and the thrust plate moves under the push of the clamping cylinder and clamps the workpiece through the clamping plate. The upper and lower sets 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] Both sets of thrust plates 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. Each set of second rotating plates, connected to the clamping plate, is subjected to force on one side. A triangular plate is cut out 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 the thrust plate pushes on both sides of the clamping plate, making the force on the clamping plate more even.

[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 groove 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, comprising an extrusion plate and a base. The base is mounted within the upper housing, with extrusion cylinders mounted at both ends. A linkage housing is mounted on the extrusion cylinders. Sealing plates are located on the left and right sides of the linkage housing within the upper housing. Two sets of extrusion cylinders are connected to the extrusion plates. A positioning cylinder is located in the middle of the linkage housing, which is rotatably connected to the extrusion plate. The four sides of the linkage housing are slidably connected to the inner wall of the upper housing and the two sets of sealing plates. The linkage housing forms a sealed space within the upper housing that communicates with the extrusion plate. The extrusion cylinders cause the linkage housing to rise and fall along with the extrusion plate, providing 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 to 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 slot, in which neutralizing blades and rotating blades are arranged from top to bottom. The mounting slot is connected to the interior of the upper shell. A T-shaped rotating slot is provided in the middle of the neutralizing blade, and gear teeth are provided at the T-shaped end of the rotating slot. An inverted T-shaped extrusion chute is provided in the middle of the rotating blade. A bearing is provided inside the extrusion chute, and 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. The upper linkage plate is located in the rotating slot, 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 via the transmission shaft. When the lower linkage plate engages with the gear teeth on the rotating blade, the upper linkage plate slides into connection with the rotating slot. When the lower linkage plate separates from the gear teeth in the extrusion chute and contacts the bearing, the upper linkage plate engages with the gear teeth in the rotating slot. By switching, the position of the workpiece and static neutralization are achieved.

[0017] A varying magnetic field or a uniform magnetic field is generated between the two sets of the first electromagnetic plates and between the two sets of the second electromagnetic plates. When a varying magnetic field is generated between the two sets of the first electromagnetic plates, a uniform magnetic field is generated between the two sets of the second electromagnetic plates. Alternatively, a uniform magnetic field is generated between the two sets of the first electromagnetic plates and a varying magnetic field is generated between the two sets of the second electromagnetic plates. The varying magnetic field generates an electric field on the workpiece, which changes the positional distribution of electrons. Simultaneously, the uniform magnetic field alters the trajectory of the electrons, causing them to 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 spring constant of the first torsion spring is greater than the spring constant of the second torsion spring.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0020] 1. By guiding the movement of electrons through the magnetic field, the electrons accumulate 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 instantly generates a large amount of heat and causes damage to the workpiece, thereby increasing the service life of the workpiece after welding.

[0021] 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 is automated to avoid welding accidents caused by workers holding the workpieces during welding.

[0022] 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 this application is simpler and the cost of use is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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:

[0024] Figure 1 It is a left side view of the overall structure of the present invention;

[0025] Figure 2 It is a front half-section view of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall structure of the workpieces of the present invention when they are stacked and welded;

[0027] Figure 4 It is a schematic structural diagram of the extrusion assembly of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the extruded plate of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the clamping assembly of the present invention;

[0030] Figure 7 This is a schematic structural diagram of the clamping assembly of the present invention clamping a plate;

[0031] Figure 8 It is a schematic structural diagram of the clamping assembly of the present invention when clamping a cylindrical workpiece.

[0032] 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 chute; 2-12, drainage chute; 2-13, resistance-increasing 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 fan blades; 3-12, neutralizing fan blades; 3-13, extrusion slide; 3-14, bearing; 3-15, upper linkage plate; 3-16, lower linkage plate; 3-17, mounting slot; 4-1, horizontal plate; 4-2, vertical plate; 4-3, first electromagnetic plate; 4-4, second electromagnetic plate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1-8 The present invention provides a technical solution: a resistance directional welding device based on electromagnetic principles, 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 provided at both ends of the welding table, the extrusion component 3 is provided in the middle of the welding table, the electromagnetic component is provided 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 the two workpieces.

[0035] 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 fixed to the upper shell 1-1 and the lower shell 1-2 respectively. 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.

[0036] 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 and are symmetrically arranged on the welding table.

[0037] 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.

[0038] 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.

[0039] 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. The spring constant of the first torsion spring is greater than the spring constant of the second torsion spring.

[0040] 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 slidingly 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 the end of the second rotating plate 2-22 that is rotatably connected to the movable groove 2-5 is subjected to unilateral force.

[0041] 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. A positioning groove is provided in the middle of the lower end of the resistance increasing plate 2-13.

[0042] 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 bring the 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.

[0043] 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 edges of the linkage shell 3-4 are respectively slidably connected to the inner wall of the upper shell 1-1 and the two sets of sealing plates 3-5. A through groove is opened on the upper shell 1-1 above the extrusion plate 3-1.

[0044] Both groups of extrusion cylinders 3-3 are connected to the extrusion plate 3-1. 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. 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. A sealing ring 3-10 is installed between the upper shell 1-1 and the extrusion plate 3-1.

[0045] The extrusion plate 3-1 is provided with a mounting groove 3-17, which is communicated with the interior of the upper shell 1-1. The neutralizing blade 3-12 and the rotating blade 3-11 are rotatably mounted in the mounting groove 3-17 from top to bottom. The rotating blade 3-11 is obliquely mounted 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 makes unilateral contact with the workpiece, 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 the T-shaped end of the rotating groove is processed with gear teeth. An inverted T-shaped extrusion chute 3-13 is provided in the middle of the dynamic fan blade 3-11, and a bearing 3-14 is fixed inside the extrusion chute 3-13. The bearing 3-14 is preferably a thrust ball bearing. Gear teeth are processed above the bearing 3-14 inside the extrusion chute 3-13, and 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 chute 3-13. The upper linkage plate 3-15 and the lower linkage plate 3-16 are both provided with second gear teeth that match the gear teeth.

[0046] When the gear teeth on the lower linkage plate 3-16 are engaged with the gear teeth on the rotating fan 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 engaged with the gear teeth, the lower linkage plate 3-16 is disengaged from the gear teeth of the rotating fan blade 3-11 and contacts the bearing 3-14.

[0047] 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 provided in the first electromagnetic plate 4-3 and the second electromagnetic plate 4-2.

[0048] 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.

[0049] Working principle of the present invention:

[0050] The first workpiece 5 and the second workpiece 6 to be welded are respectively moved from both ends of the welding table into the interior of the welding table, 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 under the drive of the thrust plate 2-2. At the same time, the extrusion plate 3-1 extrude the end of the first workpiece 5 and the second workpiece 6 to be welded under the drive of the extrusion cylinder 3-3.

[0051] 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 current. The current flows at the end where the two workpieces are in contact, generating heat between the two workpieces, and the heat is used to preheat the end of the two workpieces that need to be welded.

[0052] When the other workpiece is connected to the other electrode of the power supply, a large current flows between the two workpieces, causing the two workpieces to be welded by resistance heat, thereby achieving welding of the two workpieces.

[0053] By guiding the movement of electrons through the magnetic field, the electrons accumulate 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 large amounts of current, which would instantly generate a large amount of heat and cause damage to the workpiece, thereby increasing the service life of the workpiece after welding.

[0054] 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 engaged 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 through rotation. The rotating blades 3-11 generate forward power and power to move left or right for the workpieces through rotation. 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.

[0055] 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 engage with the gear teeth, and the lower linkage plate 3-16 rests on 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 rotates under the drive of the motor. 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 at the same time to cool the workpiece.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are 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 will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection 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. The clamping assemblies (2) are respectively provided at both ends of the welding table, and the extrusion assembly (3) is provided in the middle of the welding table. The electromagnetic assembly is provided in the middle of the welding table and 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 table comprises an upper shell (1-1) and a lower shell (1-2); two groups of support plates (1-3) are provided 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); Each group of the clamping components (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 a first electromagnetic plate (4-3); the middle positions of the two groups of vertical plates (4-2) are both provided with a second electromagnetic plate (4-4); 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).

2. The resistance directional welding device based on electromagnetic principle according to claim 1, 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 rotationally connected to the connecting plate (2-4); the other end of the first rotating plate (2-21) is rotationally connected to the second rotating plate (2-22); the other end of the second rotating plate (2-22) is rotationally 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.

3. The electromagnetic-based resistance directional welding device according to claim 2, 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 a guide slot (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 at the middle of the lower end of the resistance increasing plate (2-13).

4. The resistance directional welding device based on electromagnetic principle according to claim 3, 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), and 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), and the positioning cylinder (3-7) is rotatably connected to the extrusion plate (3-1).

5. The resistance directional welding device based on electromagnetic principle according to claim 4, characterized in that: A motor housing (3-8) is provided on the positioning cylinder (3-7), 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 blower (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).

6. The resistance directional welding device based on electromagnetic principle according to claim 5, 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 provided 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). A T-shaped rotating groove is provided in the middle of the neutralizing blade (3-12), and a gear is provided at the T-shaped end of the rotating groove. An inverted T-shaped extrusion groove is provided in the middle of the rotating blade (3-11). A pressure chute (3-13) is provided inside the pressure chute (3-13), a bearing (3-14) is provided inside the pressure chute (3-13), gear teeth are provided above the bearing (3-14) inside the pressure chute (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 chute (3-13).

7. The resistance directional welding device based on electromagnetic principle according to claim 6, 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).

8. The resistance directional welding device based on electromagnetic principle according to claim 7, 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.

Images