Resistance welding equipment and welding process for solenoid valve processing

Abstract

The present application relates to a resistance welding device and a welding process thereof for solenoid valve processing, wherein the resistance welding device for solenoid valve processing comprises a main body, a support block, a lifting member, an upper electrode and a lower electrode, wherein the support block is arranged on the main body, and the upper electrode is arranged on the support block through the lifting member; the lower electrode is arranged on the main body below the upper electrode; and further comprises a workpiece transfer device, wherein the workpiece transfer device comprises a first fixed block, a moving block, an adjustment block, a first clamping mechanism, a second clamping mechanism and a moving assembly, wherein the first fixed block is arranged on the main body on one side of the lower electrode; the moving block is arranged on the first fixed block; the adjustment block is slidingly arranged on the moving block; the first clamping mechanism and the second clamping mechanism are both arranged on the adjustment block; the moving assembly is arranged on the moving block and connected to the adjustment block. The present application has the effect of improving efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of welding, and in particular to a resistance welding device and a welding process thereof for processing a solenoid valve. Background Art

[0002] The solenoid valve controls the movement of the valve body by controlling the current on and off of the electromagnet, thereby achieving control of the fluid system. When the solenoid valve is processed and produced, resistance welding is used to weld the parts. Resistance welding uses the resistance heat and a large amount of plastic deformation energy of the welding area itself to make the two separated metal atoms close to the lattice distance to form a metal bond, and produce a sufficient amount of common grains on the bonding surface to obtain a welding point, weld or butt joint.

[0003] At present, a resistance welding device for electromagnetic valve processing includes a main body, a support block is fixed on the main body, a cylinder is arranged on the end of the support block away from the main body, an upper electrode is connected to the piston rod of the cylinder, and a lower electrode is fixed on the main body directly below the upper electrode. One of the workpieces is placed on the lower electrode, and then the other workpiece is placed on the workpiece located at the lower electrode, and the positions of the two workpieces are adjusted so that the center lines of the two workpieces are aligned; then the cylinder is started, and the piston rod of the cylinder drives the upper electrode to move. When the upper electrode hits the workpiece away from the lower electrode, the upper electrode and the lower electrode are energized, and the upper electrode and the lower electrode will weld the two workpieces together.

[0004] When adjusting the positions of the two workpieces, because there is no reference object, the operator needs to make multiple adjustments based on experience, which takes a long time and reduces the welding efficiency. Summary of the invention

[0005] In order to improve welding efficiency, the present application provides a resistance welding device and a welding process thereof for solenoid valve processing.

[0006] In the first aspect, the present application provides a resistance welding device for solenoid valve processing, which adopts the following technical solution:

[0007] A resistance welding device for solenoid valve processing, comprising a main body, a support block, a lifting member, an upper electrode and a lower electrode, wherein the support block is arranged on the main body, and the upper electrode is arranged on the support block through the lifting member; the lower electrode is arranged on the main body below the upper electrode; and also comprising a workpiece transfer device, the workpiece transfer device comprising a first fixed block, a moving block, an adjustment block, a first clamping mechanism, a second clamping mechanism and a moving assembly, the first fixed block is arranged on the main body on one side of the lower electrode; the moving block is arranged on the first fixed block; the adjustment block is slidably arranged on the moving block; the first clamping mechanism and the second clamping mechanism are both arranged on the adjustment block; the moving assembly is arranged on the moving block and connected to the adjustment block.

[0008] By adopting the above technical solution, a workpiece is first placed on the first fixed block, and then another workpiece is placed on the workpiece located on the first fixed block, and the first clamping mechanism is aligned with the workpiece close to the first fixed block, and the second clamping mechanism is aligned with the workpiece far away from the first fixed block, and then the first clamping mechanism clamps the workpiece close to the first fixed block, and the second clamping mechanism clamps the workpiece far away from the first fixed block; when the first clamping mechanism and the second clamping mechanism both clamp the workpieces, the center lines of the two workpieces will be aligned; then the moving component is started, and the moving component drives the adjustment block to move, and the adjustment block will drive the first clamping mechanism and the second clamping mechanism to move. The holding mechanisms move synchronously, and the workpiece clamped by the first clamping mechanism and the workpiece clamped by the second clamping mechanism will move synchronously to the lower electrode; then the first clamping mechanism and the second clamping mechanism will no longer clamp the workpiece; then the lifting member is started, and the lifting member will drive the upper electrode to move, so that the upper electrode contacts the workpiece away from the lower electrode, and the upper electrode and the lower electrode are energized, thereby realizing welding the two workpieces together; the workpiece transfer device set up can quickly adjust the relative positions of the two workpieces, and then transfer the two workpieces with adjusted relative positions to the lower electrode, thereby reducing the adjustment time of the two workpieces, thereby saving time and improving efficiency.

[0009] Optionally, a supporting block is provided on the first fixed block, a first supporting plate and a second supporting plate are provided on the supporting block, the second supporting plate is located on a side of the first supporting plate away from the first fixed block, the first clamping mechanism is located between the first supporting plate and the second supporting plate, and the second clamping mechanism is located on a side of the second supporting plate away from the first supporting plate; the adjustment block comprises a sliding block, a first lifting block, a second lifting block and a first adjusting component, the sliding block is slidably provided on the moving block, and the moving component is connected to the sliding block; the first lifting block is slidably provided on the sliding block, the first clamping mechanism is provided on the first lifting block; the second lifting block is slidably provided on the first lifting block, The second clamping mechanism is arranged on the second lifting block; the first adjusting component is arranged on the sliding block, and the first lifting block and the second lifting block are both connected to the first adjusting component; the first fixed block is provided with an adjusting mechanism, and the adjusting mechanism includes a first slider, a second slider and an adjusting component; the first fixed block is provided with a first sliding groove and a second sliding groove perpendicular to the first sliding groove, the first slider is slidingly arranged in the first sliding groove, and the supporting block is connected to the first slider; the second slider is slidingly arranged in the second sliding groove, and the moving block is arranged on the second slider; the adjusting component is arranged on the first fixed block, and the first slider and the second slider are both connected to the adjusting component.

[0010] By adopting the above technical solution, one of the two workpieces to be welded is first placed on the first supporting plate, and the other workpiece is placed on the second supporting plate; then the first clamping mechanism clamps the workpiece on the first supporting plate, and the second clamping mechanism clamps the workpiece on the second supporting plate, at which time the workpiece clamped by the first clamping mechanism is located directly below the workpiece clamped by the second clamping mechanism, and the center line of the workpiece clamped by the first clamping mechanism is aligned with the center line of the workpiece clamped by the second clamping mechanism; then the adjustment component is started, and the adjustment component causes the first slider to drive the supporting block to move in a direction away from the lower electrode, and at the same time the second slider will Drive the moving block to move, so that the first supporting plate and the second supporting plate no longer support the workpiece; then start the moving component, and the moving component drives the sliding block to slide on the moving block; when the sliding block moves, under the action of the adjusting component, the workpiece clamped by the second clamping mechanism will move in the direction close to the workpiece clamped by the first clamping mechanism, and the workpiece clamped by the first clamping mechanism will move in the direction close to the lower electrode. When the workpiece clamped by the first clamping mechanism hits the lower electrode, the workpiece clamped by the second clamping mechanism hits the workpiece clamped by the first clamping mechanism; then the first clamping mechanism and the second clamping mechanism no longer clamp the workpiece.

[0011] Optionally, a first groove is provided on the sliding block, the first lifting block is slidably arranged in the first groove, a sliding hole is provided on the first lifting block, the second lifting block is slidably arranged in the sliding hole, and a second groove is provided on the second lifting block located in the sliding hole; the moving assembly includes a first motor, a first gear and a first rack, the first motor is arranged on the sliding block, and the first gear key is connected to the output shaft of the first motor; the first rack is arranged on the moving block and meshes with the first gear; the first adjusting assembly includes a first driving plate, a second driving plate, an adjusting shaft, a second gear, a first adjusting screw and a second adjusting screw, the first driving plate is arranged on the first The first and second adjusting screws are respectively arranged on a lifting block and blocks the sliding hole; the second driving plate is arranged on the second lifting block and blocks the second groove; the adjusting shaft is rotatably arranged on the sliding block, the second gear key is connected to the adjusting shaft and meshes with the first rack; the first adjusting screw is arranged on the adjusting shaft, the end of the first adjusting screw away from the adjusting shaft passes through the first driving plate and is located in the sliding hole, and the first adjusting screw is threadedly connected to the first driving plate; the second adjusting screw is arranged on the first adjusting screw, the end of the second adjusting screw away from the adjusting shaft passes through the second driving plate and is located in the second groove, and the second adjusting screw is threadedly connected to the second driving plate.

[0012] By adopting the above technical solution, the first motor is started, and the output shaft of the first motor drives the first gear to rotate. Because the first gear is meshed with the fixed first rack, when the first gear rotates, the sliding block will slide in the third sliding groove; when the sliding block slides on the moving block, the second gear will move relative to the first rack, and the second gear will rotate, the second gear drives the adjusting shaft to rotate, the adjusting shaft drives the first adjusting screw to rotate, and the first adjusting screw drives the second adjusting screw to rotate; when the first adjusting screw rotates, the first adjusting screw will drive the first driving plate to move relative to the sliding block, and the first driving plate drives the first lifting block to slide in the first groove of the sliding block; when the second adjusting screw rotates, the second adjusting screw will drive the second driving plate to move relative to the first lifting block, and the second driving plate will drive the second lifting block to slide in the sliding hole of the first lifting block.

[0013] Optionally, a rotating mechanism is provided on the second lifting block, and the rotating mechanism includes a first connecting block, a second connecting block, a first rotating shaft, a second rotating shaft and a rotating assembly, the first connecting block is fixedly set on the second lifting block, the first rotating shaft is rotatably set on the first connecting block, the second connecting block is set on the first rotating shaft, the second rotating shaft is rotatably set on the second connecting block, and the second clamping mechanism is set on the second rotating shaft; the rotating assembly is set on the first connecting block, and the first rotating shaft and the second rotating shaft are both connected to the rotating assembly.

[0014] By adopting the above technical scheme, when both workpieces need to be brushed with solder paste for welding, the workpieces located on the first supporting plate and the second supporting plate are brushed with solder paste on the side away from the first fixed block; when the first clamping mechanism and the second clamping mechanism both clamp the workpiece and the first supporting plate and the second supporting plate no longer support the workpiece, the rotating assembly is started to rotate the second connecting block relative to the first connecting block, so that the workpiece clamped by the second clamping mechanism is rotated to the side where the workpiece is clamped by the first clamping mechanism, and then the rotating assembly drives the second rotating shaft to rotate, the second rotating shaft drives the second fixed block in the second clamping mechanism to rotate, and the two clamping blocks on the second fixed block drive the workpiece to rotate, so that the side of the workpiece clamped by the second clamping mechanism with solder paste brushed on it faces the workpiece clamped by the first clamping mechanism; then the rotating assembly is started so that the workpiece clamped by the second clamping mechanism is located above the workpiece of the first clamping mechanism.

[0015] Optionally, the lifting member is provided with a connecting mechanism connected to the upper electrode, the connecting mechanism includes a third connecting block, a fourth connecting block, a main rod, a secondary rod and a spring, the third connecting block is connected to the lifting member, the third connecting block is provided with a third groove, the fourth connecting block is slidably arranged in the third groove, and the upper electrode is arranged on the fourth connecting block; one end of the main rod is connected to the third connecting block and the other end is provided with a fourth groove; one end of the secondary rod is slidably arranged in the fourth groove and the other end is connected to the fourth connecting block; the spring is located in the fourth groove, one end of the spring is connected to the main rod and the other end is connected to the secondary rod.

[0016] By adopting the above technical solution, the lifting member is started, and the lifting member drives the third connecting block to move in the direction close to the main body, and the third connecting block drives the fourth connecting block to move, and the fourth connecting block drives the upper electrode to move; when the upper electrode contacts the workpiece, the fourth connecting block will be compressed into the third groove of the third connecting block, and the spring will be compressed at this time; when the lifting member drives the third connecting block to move in the direction away from the main body, under the action of the spring, the upper electrode on the fourth connecting block will maintain the state of contacting the workpiece for a certain period of time and will not be separated from the workpiece immediately, so that the two workpieces are still in contact under a certain pressure after welding is completed.

[0017] Optionally, a cooling device is provided on the main body, and the cooling device includes a cooling pipe, a transfer pipe, a circulation box, a water inlet pipe, a water outlet pipe, a power pump and a limiting block, a part of the cooling pipe is located on the fourth connecting block, and the other cooling pipes are located in the upper electrode; two transfer pipes are provided, and the two transfer pipes correspond to the two ends of the cooling pipe one by one, one end of the transfer pipe is connected to the cooling pipe and the other end is provided on the third connecting block; the circulation box is provided on one side of the main body, and the limiting block is provided on the supporting block; one end of the water inlet pipe is connected to the circulation box and the other end is connected to one of the transfer pipes; one end of the water outlet pipe is connected to the circulation box and the other end is connected to another transfer pipe; the power pump is provided in the circulation box and connected to the water inlet pipe; a plurality of limiting blocks are provided, and a plurality of limiting blocks are provided on the supporting block, and a limiting hole is provided on the limiting block for the water inlet pipe or the water outlet pipe to pass through.

[0018] By adopting the above technical solution, when it is necessary to cool the upper electrode, the circulation pump is started, and the circulation pump transfers the cooling water in the circulation box to the water inlet pipe, and then enters the cooling pipe through the adapter pipe, and then enters the water outlet pipe through another adapter pipe, and finally enters the circulation box; the cooling water in the cooling pipe can cool the upper electrode, thereby reducing the phenomenon that the upper electrode has a high temperature due to long-term workpiece welding, which affects the subsequent workpiece welding.

[0019] Optionally, the third connecting block is provided with a first tensioning mechanism connected to the two transfer tubes, the first tensioning mechanism includes a first adjusting block, a first tensioning block and a second adjusting component, the first adjusting block is slidably arranged on the third connecting block, the first tensioning block is fixedly arranged on the first adjusting block, and a part of the transfer tube is located on the first tensioning block; the second adjusting component is arranged on the third connecting block, and the fourth connecting block and the first adjusting block are both connected to the second adjusting component.

[0020] By adopting the above technical solution, when the fourth connecting block moves, the fourth connecting block drives the first tensioning block to move through the second adjusting component, and the first tensioning block drives the two transfer tubes to move; when the fourth connecting block moves relative to the third connecting block, the transfer tubes remain in a tensioned state, thereby reducing the phenomenon of the two transfer tubes being entangled together.

[0021] Optionally, a through hole is provided on the support block, and a second tensioning mechanism is arranged on the support block, the second tensioning mechanism includes a second adjusting block, a second tensioning block and a third adjusting assembly, one end of the second adjusting block is fixedly connected to the third connecting block and the other end passes through the through hole; two second tensioning blocks are provided, and both of the two second tensioning blocks are slidably arranged on the support block, a part of the water inlet pipe is connected to one of the second tensioning blocks, and a part of the water outlet pipe is connected to the other second tensioning block; the third adjusting assembly is arranged on the support block, and the two second tensioning blocks and the second adjusting block are connected to the third adjusting assembly.

[0022] By adopting the above technical solution, when the lifting member drives the third connecting block to move, the third connecting block drives the second adjusting block to move, and the second adjusting block drives the two second tensioning blocks to move through the third adjusting assembly, one of the second tensioning blocks drives the water inlet pipe to move, and the other second tensioning block drives the other second tensioning block to drive the water outlet pipe to move, so that the water inlet pipe and the water outlet pipe are kept in a tensioned state when the third connecting block moves to reduce the phenomenon of falling.

[0023] Optionally, an emptying assembly is provided on the water inlet pipe, and the emptying assembly includes an air pump and an emptying pipe, the air pump is provided on one side of the main body, one end of the emptying pipe is connected to the air pump and the other end is connected to the water inlet pipe.

[0024] By adopting the above technical solution, when cooling is not needed, the circulation pump is turned off and the air pump is started. The air generated by the air pump enters the water inlet pipe through the exhaust pipe. Under the action of air pressure, the cooling water in the connecting pipe, the transfer pipe and the cooling pipe will flow back to the circulation box through the outlet pipe, thereby reducing the heat loss caused by the heat generated by the upper electrode when energized and the heat exchanged with the cooling water.

[0025] In the second aspect, the present application provides a welding process of a resistance welding device for solenoid valve processing, which adopts the following technical solution:

[0026] A welding process of a resistance welding device for processing electromagnetic valves, comprising the following steps: S1: first placing one of two workpieces to be welded on a first supporting plate, and placing the other workpiece on a second supporting plate; S2: then using a first clamping mechanism to clamp the workpiece on the first supporting plate, and a second clamping mechanism to clamp the workpiece on the second supporting plate; S3: then starting a moving assembly, when the moving assembly moves, the length of an adjustment block changes, so that the workpiece clamped by the second clamping mechanism moves toward the direction of the workpiece clamped by the first clamping mechanism; when the workpiece clamped by the first clamping mechanism moves onto a lower electrode, the workpiece clamped by the second clamping mechanism contacts the workpiece clamped by the first clamping mechanism; S4: then making the first clamping mechanism and the second clamping mechanism no longer clamp the workpiece; S5: then starting a lifting member, the lifting member drives the upper electrode to move, so that the upper electrode contacts the workpiece away from the lower electrode and applies a certain pressure to the workpiece; S6: finally energizing the upper electrode and the lower electrode, and the upper electrode and the lower electrode weld the two workpieces together.

[0027] By adopting the above technical solution, when the upper electrode and the lower electrode are energized, a quantitative large current of one or several instantaneous pulse discharges will be applied to the workpieces, so that instantaneous heat is generated on the surfaces of the two workpieces. Under the conditions of heat and pressure, the material molecules on the surfaces of the two workpieces invade and bond with each other, thereby producing a reliable coating hard-connected solder joint.

[0028] In summary, this application includes the following beneficial technical effects:

[0029] The workpiece transfer device can quickly adjust the relative positions of the two workpieces, and then transfer the two workpieces with adjusted relative positions to the lower electrode, thereby reducing the adjustment time of the two workpieces, saving time and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of a resistance welding device used for solenoid valve processing in an embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the structure of a workpiece transfer device in an embodiment of the present application;

[0032] Figure 3 This is a schematic diagram of the structure of the adjustment component in the embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the structure of the mobile component in the embodiment of the present application;

[0034] Figure 5 This is a schematic diagram of the structure of the rotating mechanism in the embodiment of the present application;

[0035] Figure 6This is a schematic diagram of the structure of the second clamping mechanism in the embodiment of the present application;

[0036] Figure 7 This is a schematic diagram of the structure of the connection mechanism in the embodiment of the present application;

[0037] Figure 8 A schematic diagram of the structure of the defined block in the embodiment of the present application;

[0038] Fig. 9 for Figure 8 A magnified view of middle;

[0039] Fig.10 This is a schematic diagram of the structure of the second adjustment component in the embodiment of the present application;

[0040] Fig.11 Schematic diagram of the structure of the third adjustment component in the embodiment of the present application.

[0041] Figure numerals: 11, main body; 12, support block; 121, fifth slide; 13, lifting member; 14, upper electrode; 15, lower electrode; 2, workpiece transfer device; 21, first fixed block; 211, first slide; 212, second slide; 22, moving block; 221, third slide; 23, first clamping mechanism; 24, second clamping mechanism; 241, second fixed block; 242, clamping block; 243, bidirectional screw; 244, fifth motor; 25, moving assembly; 251, first motor; 252, first gear; 253, first rack; 26, supporting block; 27, First supporting plate; 28, second supporting plate; 3, adjustment block; 31, sliding block; 311, first groove; 32, first lifting block; 321, sliding hole; 33, second lifting block; 331, second groove; 34, first adjustment assembly; 341, first driving plate; 342, second driving plate; 343, adjustment shaft; 344, second gear; 345, first adjustment screw; 346, second adjustment screw; 4, adjustment mechanism; 41, first slider; 42, second slider; 43, adjustment assembly; 431, first adjustment screw; 432, second adjustment screw; 433, second motor; 434, first bevel gear; 435, second bevel gear; 5, rotating mechanism; 51, first connecting block; 52, second connecting block; 53, first rotating shaft; 54, second rotating shaft; 551, third motor; 552, fourth motor; 6, connecting mechanism; 61, third connecting block; 611, third groove; 62, fourth connecting block; 63, main rod; 64, auxiliary rod; 65, spring; 7, cooling device; 71, cooling pipe; 72, transfer pipe; 73, circulation box; 74, water inlet pipe; 75, water outlet pipe; 76, limiting block; 77, emptying assembly; 771, air pump; 772, emptying pipe ;8. First tensioning mechanism;81. First adjusting block;82. First tensioning block;83. Second adjusting assembly;831. Second rack;832. Third gear;833. Third adjusting block;834. Third rack;835. Fourth rack;836. Third rotating shaft;837. Fourth gear;838. Fifth gear;839. Fifth rack;9. Second tensioning mechanism;91. Second adjusting block;92. Second tensioning block;93. Third adjusting assembly;931. Sixth rack;932. Fourth rotating shaft;933. Sixth gear;934. Seventh gear;935. Seventh rack. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-11 This application is described in further detail.

[0043] The embodiment of the present application discloses a resistance welding device for solenoid valve processing.

[0044] refer to Figure 1A resistance welding device for solenoid valve processing includes a main body 11, an L-shaped support block 12 is fixed on the main body 11, a lifting member 13 is arranged on the end of the support block 12 away from the main body 11, the lifting member 13 is connected to a connecting mechanism 6, the connecting mechanism 6 is provided with an upper electrode 14, a lower electrode 15 is fixed on the main body 11 directly below the upper electrode 14; a workpiece transfer device 2 is arranged on the main body 11 on one side of the lower electrode 15.

[0045] refer to Figure 1 and Figure 2 The workpiece transfer device 2 includes a first fixed block 21 fixedly connected to the main body 11 , the first fixed block 21 is provided with a first slide groove 211 and a second slide groove 212 perpendicular to the first slide groove 211 , and the second slide groove 212 is perpendicular to the first slide groove 211 .

[0046] refer to Figure 2 and Figure 3 The first fixed block 21 is provided with an adjustment mechanism 4, which includes a first slider 41 slidably connected in the first slide slot 211, and a second slider 42 slidably connected in the second slide slot 212. The first fixed block 21 is provided with an adjustment assembly 43, which includes a first adjustment screw 431 rotatably connected in the first slide slot 211, the first adjustment screw 431 passes through the first slider 41 and is threadedly connected to the first slider 41; a second adjustment screw 432 is rotatably connected in the second slide slot 212, the second adjustment screw 432 passes through the second slider 42 and is threadedly connected to the second slider 42; a first bevel gear 434 is keyed to the end of the first adjustment screw 431 close to the second adjustment screw 432; a second bevel gear 435 meshing with the first bevel gear 434 is keyed to the second adjustment screw 432; a second motor 433 is fixedly connected to the first fixed block 21, and an output shaft of the second motor 433 is connected to an end of the first adjustment screw 431 away from the first bevel gear 434.

[0047] Start the second motor 433, and the output shaft of the second motor 433 drives the first adjusting screw 431 to rotate, and the first adjusting screw 431 drives the first slider 41 to slide in the first sliding groove 211; the first bevel gear 434 on the first adjusting screw 431 drives the second bevel gear 435 to rotate, and the second bevel gear 435 drives the second adjusting screw 432 to rotate, and the second adjusting screw 432 will drive the second slider 42 to slide in the second sliding groove 212.

[0048] refer to Figure 2 and Figure 3 The first sliding block 41 is fixedly connected to a supporting block 26 , and the supporting block 26 is fixed with a first supporting plate 27 and a second supporting plate 28 in sequence from bottom to top along its vertical direction.

[0049] The second slider 42 is fixedly connected with a moving block 22 , which is located at a side of the lower electrode 15 away from the main body 11 ; the moving block 22 is provided with a third sliding groove 221 along its length, and the adjusting block 3 is slidably connected in the third sliding groove 221 .

[0050] refer to Figure 2 and Figure 4 The adjustment block 3 includes a sliding block 31 slidingly connected in the third sliding groove 221, a moving assembly 25 is arranged on the sliding block 31, the moving assembly 25 includes a first motor 251 fixedly connected to the sliding block 31, a first gear 252 is keyed on the output shaft of the first motor 251, and a first rack 253 meshing with the first gear 252 is fixedly connected to the side wall of the third sliding groove 221.

[0051] The first motor 251 is started, and the output shaft of the first motor 251 drives the first gear 252 to rotate. Since the first gear 252 is meshed with the fixed first rack 253 , when the first gear 252 rotates, the sliding block 31 slides in the third sliding groove 221 .

[0052] refer to Figure 2 and Figure 4 The end of the sliding block 31 away from the moving block 22 is provided with a first groove 311 along its length direction, the first lifting block 32 is slidably connected in the first groove 311, the first lifting block 32 is provided with a sliding hole 321 along its length direction, the second lifting block 33 is slidably connected in the sliding hole 321, and the end of the second lifting block 33 located in the sliding hole 321 is provided with a second groove 331 along its length direction. A first adjusting component 34 is arranged on the sliding block 31, the first adjusting component 34 includes a first driving plate 341 fixedly connected to the first lifting block 32, the first driving plate 341 blocks the sliding hole 321; the second lifting block 33 is fixedly connected to a second driving plate 342 that blocks the second groove 331; an adjusting shaft 343 is rotatably connected to the sliding block 31, the adjusting shaft 343 is key-connected with a second gear 344 meshing with the first rack 253; the end of the adjusting shaft 343 away from the second gear 344 is fixedly connected with a first adjusting screw 345, the second adjusting screw 345 is fixedly connected to the first adjusting screw 345, and the second adjusting screw 345 is fixedly connected to the first adjusting screw 345. One end of an adjusting screw 345 away from the adjusting shaft 343 is located in the sliding hole 321 of the first lifting block 32, and the first adjusting screw 345 passes through the first driving plate 341 and is threadedly connected to the first driving plate 341; a second adjusting screw 346 is fixedly connected to one end of the first adjusting screw 345 away from the adjusting shaft 343, and one end of the second adjusting screw 346 away from the first adjusting screw 345 is located in the second groove 331 of the second lifting block 33, and the second adjusting screw 346 passes through the second driving plate 342 and is threadedly connected to the second driving plate 342. The cross sections of the first lifting block 32, the second lifting block 33, the sliding hole 321, the first groove 311 and the second groove 331 are all rectangular.

[0053] When the sliding block 31 slides in the third sliding groove 221 of the moving block 22, the second gear 344 will move relative to the first rack 253, and the second gear 344 will rotate, the second gear 344 will drive the adjusting shaft 343 to rotate, the adjusting shaft 343 drives the first adjusting screw 345 to rotate, and the first adjusting screw 345 drives the second adjusting screw 346 to rotate; when the first adjusting screw 345 rotates, the first adjusting screw 345 will drive the first driving plate 341 to move relative to the sliding block 31, and the first driving plate 341 drives the first lifting block 32 to slide in the first groove 311 of the sliding block 31; when the second adjusting screw 346 rotates, the second adjusting screw 346 will drive the second driving plate 342 to move relative to the first lifting block 32, and the second driving plate 342 will drive the second lifting block 33 to slide in the sliding hole 321 of the first lifting block 32.

[0054] refer to Figure 2 and Figure 5 The end of the second lifting block 33 away from the moving block 22 is provided with a rotating mechanism 5, which includes a first connecting block 51 fixedly connected to the second lifting block 33, a first rotating shaft 53 is rotatably connected to the first connecting block 51, a second connecting block 52 is fixedly connected to the first rotating shaft 53, a second rotating shaft 54 ​​is rotatably connected to the second connecting block 52, and the second rotating shaft 54 ​​is perpendicular to the first rotating shaft 53. A rotating assembly is provided on the first connecting block 51, and the rotating assembly includes a third motor 551 fixedly connected to the first connecting block 51, and the output shaft of the third motor 551 is connected to the first rotating shaft 53; a fourth motor 552 is fixedly connected to the second connecting block 52, and the output shaft of the fourth motor 552 is connected to the second rotating shaft 54.

[0055] The third motor 551 is started, and the output shaft of the third motor 551 drives the first rotating shaft 53 to rotate, and the first rotating shaft 53 drives the second connecting block 52 to rotate; the fourth motor 552 is started, and the output shaft of the fourth motor 552 drives the second rotating shaft 54 ​​to rotate.

[0056] refer to Figure 2 and Figure 6 A first clamping mechanism 23 is disposed on the first lifting block 32 , and a second clamping mechanism 24 is disposed on the second rotating shaft 54 ​​, and the first clamping mechanism 23 and the second clamping mechanism 24 have the same structure.

[0057] The first clamping mechanism 23 and the second clamping mechanism 24 both include a second fixed block 241, the second fixed block 241 of the first clamping mechanism 23 is fixedly connected to the first lifting block 32, and the second fixed block 241 in the second clamping mechanism 24 is fixedly connected to the second rotating shaft 54; a fourth sliding groove is provided on the second fixed block 241, and two clamping blocks 242 are slidingly connected in the fourth sliding groove; a bidirectional screw 243 is rotatably connected in the fourth sliding groove, the bidirectional screw 243 passes through the two clamping blocks 242, and the two clamping blocks 242 are respectively threadedly connected to the two ends of the bidirectional screw 243; a fifth motor 244 is fixedly connected to the second fixed block 241, and the output shaft of the fifth motor 244 is connected to one end of the bidirectional screw 243.

[0058] The fifth motor 244 is started, and the output shaft of the fifth motor 244 drives the bidirectional screw 243 to rotate, and the bidirectional screw 243 drives the two clamping blocks 242 to move toward each other, and the two clamping blocks 242 clamp the workpiece. In order to better align the workpiece clamped by the first clamping mechanism 23 and the workpiece clamped by the second clamping mechanism 24 after being clamped, a positioning groove corresponding to the side wall of the workpiece is provided on the clamping block 242, so that when the two clamping blocks 242 clamp the workpiece, the positioning grooves on the two clamping blocks 242 will adjust the position of the workpiece, and when the clamping blocks 242 are pressed against the workpiece, the workpiece is clamped and positioned, so that the orthographic projection of the workpiece clamped by the second clamping mechanism 24 will be aligned with the position where the workpiece clamped by the second clamping mechanism 24 needs to be welded to the workpiece clamped by the first clamping mechanism 23. Taking two workpieces welded together as an example, both are pancake-shaped and their axes coincide when welded, when the clamping block 242 in the first clamping mechanism 23 and the clamping block 242 in the second clamping mechanism 24 clamp the workpieces, the positioning grooves on the clamping blocks 242 will adjust the positions of the workpieces, and the axes of the two workpieces will coincide in the vertical direction.

[0059] refer to Figure 1 and Figure 7 The lifting member 13 includes a cylinder, and the cylinder body of the cylinder is fixedly connected to the supporting block 12.

[0060] The connecting mechanism 6 includes a third connecting block 61 connected to the cylinder piston rod, a third groove 611 is provided on the third connecting block 61, a fourth connecting block 62 is slidably connected in the third groove 611, and the upper electrode 14 is fixedly connected to the fourth connecting block 62; a main rod 63 is fixedly connected to the third connecting block 61, the main rod 63 is located in the third groove 611, the main rod 63 is provided with a fourth groove along its length direction, a secondary rod 64 is slidably connected in the fourth groove, and one end of the secondary rod 64 away from the fourth groove is fixedly connected to the fourth connecting block 62; a spring 65 is arranged in the fourth groove, one end of the spring 65 is connected to the third connecting block 61 and the other end is connected to the secondary rod 64.

[0061] Start the cylinder, and the piston rod of the cylinder drives the third connecting block 61 to move toward the main body 11, and the third connecting block 61 drives the fourth connecting block 62 to move, and the fourth connecting block 62 drives the upper electrode 14 to move; when the upper electrode 14 contacts the workpiece, the fourth connecting block 62 will be pressed into the third groove 611 of the third connecting block 61, and the spring 65 will be compressed; when the cylinder drives the third connecting block 61 to move in the direction away from the main body 11, under the action of the spring 65, the upper electrode 14 on the fourth connecting block 62 will remain in contact with the workpiece for a certain period of time and will not be separated from the workpiece immediately.

[0062] refer to Figure 1 , Figure 7 and Figure 8 A cooling device 7 is provided on the upper electrode 14 and the fourth connecting block 62, and the cooling device 7 includes a cooling tube 71, both ends of the cooling tube 71 are located on the fourth connecting block 62, and the other part of the cooling tube 71 is located in the upper electrode 14; two transfer tubes 72 are fixedly connected to the third connecting block 61, one of the transfer tubes 72 is connected to one end of the cooling tube 71, and the other transfer tube 72 is connected to the other end of the cooling tube 71; the transfer tube 72 fixed between one end of the third connecting block 61 and the end of the transfer tube 72 connected to the cooling tube 71 is located in the third groove 611.

[0063] A circulation box 73 is placed on one side of the main body 11, and a water inlet pipe 74 and a water outlet pipe 75 are connected to the circulation box 73. The end of the water inlet pipe 74 away from the circulation box 73 is connected to one of the transfer pipes 72, and the end of the water outlet pipe 75 away from the circulation box 73 is connected to the other transfer pipe 72; a power pump is connected inside the circulation box 73, and the power pump is connected to the water inlet pipe 74.

[0064] A plurality of limiting blocks 76 are fixed on the support block 12 , and limiting holes are formed on the limiting blocks 76 for the water inlet pipe 74 or the water outlet pipe 75 to pass through.

[0065] refer to Figure 8 and Fig. 9 An emptying assembly 77 is provided on one side of the main body 11. The emptying assembly 77 includes an air pump 771 placed on one side of the main body 11. An emptying pipe 772 is connected to the air pump 771. The end of the emptying pipe 772 away from the air pump 771 is connected to the water inlet pipe 74 between the circulation box 73 and the transfer pipe 72.

[0066] When the upper electrode 14 needs to be cooled, the circulation pump is started, and the circulation pump transfers the cooling water in the circulation box 73 to the water inlet pipe 74, and then enters the cooling pipe 71 through the transfer pipe 72, and then enters the water outlet pipe 75 through another transfer pipe 72, and finally enters the circulation box 73. When cooling is not needed, the circulation pump is turned off, and the air pump 771 is started. The air generated by the air pump 771 enters the water inlet pipe 74 through the exhaust pipe 772. Under the action of air pressure, the cooling water in the connecting pipe, the transfer pipe 72 and the cooling pipe 71 will flow back to the circulation box 73 through the water outlet pipe 75.

[0067] In this embodiment, a circulation pipe may be connected to the lower electrode 15 , a portion of the circulation pipe is located in the lower electrode 15 , a portion of the circulation pipe is located in the circulation box 73 , and a water pump is provided on the circulation pipe located in the circulation box 73 .

[0068] refer to Figure 7 and Fig.10 A first tensioning mechanism 8 connected to the transfer tube 72 is provided on the third connecting block 61. The first tensioning mechanism 8 includes a first adjusting block 81 slidably connected to the third connecting block 61. A first tensioning block 82 is fixedly connected to the first adjusting block 81. Parts of the two transfer tubes 72 are connected to the first tensioning block 82. A second adjusting assembly 83 is provided on the third connecting block 61, and the second adjusting assembly 83 includes a second rack 831 fixedly connected to the fourth connecting block 62, and a third gear 832 meshing with the second rack 831 is rotatably connected to the third connecting block 61; a third adjusting block 833 is slidably connected to the third connecting block 61, and a third rack 834 meshing with the third gear 832 is fixedly connected to the third adjusting block 833; a fourth rack 835 is fixedly connected to the third adjusting block 833, a third rotating shaft 836 is rotatably connected to the third connecting block 61, and a fourth gear 837 meshing with the fourth rack 835 is keyed to the third rotating shaft 836, and a fifth gear 838 is keyed to one end of the third rotating shaft 836 away from the fourth gear 837, and a fifth rack 839 meshing with the fifth gear 838 is fixedly connected to the first adjusting block 81.

[0069] When the fourth connecting block 62 moves, the second rack 831 on the fourth connecting block 62 drives the third gear 832 to rotate, the third gear 832 drives the third rack 834 to move, the third rack 834 drives the third adjusting block 833 to move, the fourth rack 835 on the third adjusting block 833 drives the fourth gear 837 to rotate, the fourth gear 837 drives the third rotating shaft 836 to rotate, the fifth gear 838 on the third rotating shaft 836 drives the fifth rack 839 to move, and the fifth rack 839 will drive the first adjusting block 81 to move, the first adjusting block 81 drives the first tensioning block 82 to move, and the first tensioning block 82 drives the two transfer tubes 72 to move.

[0070] refer to Figure 7 and Fig.11 The support block 12 is provided with a through hole, and the support block 12 is provided with a second tensioning mechanism 9, which includes a second adjustment block 91 fixedly connected to the third connection block 61, and the end of the second adjustment block 91 away from the third connection block 61 passes through the through hole of the support block 12; the support block 12 is provided with two fifth chutes 121, and the second tensioning blocks 92 are slidably connected in the two fifth chutes 121, one of the second tensioning blocks 92 is connected to the water inlet pipe 74, and the other second tensioning block 92 is connected to the water outlet pipe 75. One end of the water inlet pipe 74 close to the transfer pipe 72 and one end of the water outlet pipe 75 close to the transfer pipe 72 are both serpentinely arranged on the support block 12.

[0071] A third adjusting assembly 93 is provided on the support block 12, and the third adjusting assembly 93 includes a sixth rack 931 fixedly connected to the second adjusting block 91; a fourth rotating shaft 932 is rotatably connected to the support block 12, and a sixth gear 933 meshing with the sixth rack 931 is keyed to the fourth rotating shaft 932; both ends of the fourth rotating shaft 932 are keyed to a seventh gear 934, and the two second tensioning blocks 92 are fixedly connected to a seventh rack 935, and the two seventh racks 935 are respectively meshed with the two seventh gears 934.

[0072] When the cylinder drives the third connecting block 61 to move, the third connecting block 61 drives the second adjusting block 91 to move, the sixth rack 931 on the second adjusting block 91 drives the sixth gear 933 to rotate, the sixth gear 933 drives the fourth rotating shaft 932 to rotate, the seventh gear 934 on the fourth rotating shaft 932 drives the seventh rack 935 to move, and the seventh rack 935 will drive the second tensioning block 92 to move.

[0073] The implementation principle of a resistance welding device for solenoid valve processing in an embodiment of the present application is: first, one of the two workpieces to be welded is placed on the first supporting plate 27 , and the other workpiece is placed on the second supporting plate 28 .

[0074] Then, the fifth motor 244 in the first clamping mechanism 23 and the second clamping mechanism 24 is started, so that the two clamping blocks 242 in the first clamping mechanism 23 clamp the workpiece on the first supporting plate 27, and the two clamping blocks 242 in the second clamping mechanism 24 clamp the workpiece on the second supporting plate 28. At this time, the workpiece clamped by the first clamping mechanism 23 is located directly below the workpiece clamped by the second clamping mechanism 24.

[0075] Then start the second motor 433, so that the first slider 41 drives the supporting block 26 to move away from the lower electrode 15, and the second slider 42 drives the moving block 22 to move towards the lower electrode 15; so that the first supporting plate 27 and the second supporting plate 28 no longer support the workpiece.

[0076] When the first supporting plate 27 and the second supporting plate 28 no longer support the workpiece, the first motor 251 is started to make the sliding block 31 slide in the third sliding groove 221 of the moving block 22; when the sliding block 31 moves, the first lifting block 32 and the second lifting block 33 will both move in the direction close to the main body 11, so that the workpiece clamped by the two clamping blocks 242 in the first clamping mechanism 23 is pressed against the lower electrode 15, and the workpiece clamped by the two clamping blocks 242 in the second clamping mechanism 24 is pressed against the workpiece clamped by the two clamping blocks 242 in the first clamping mechanism 23.

[0077] Then, the fifth motor 244 in the first clamping mechanism 23 and the second clamping mechanism 24 is started, so that the two clamping blocks 242 in the first clamping mechanism 23 no longer clamp the workpiece, and the two clamping blocks 242 in the second clamping mechanism 24 no longer clamp the workpiece.

[0078] Then start the second motor 433, so that the first slider 41 drives the supporting block 26 to move toward the lower electrode 15, and the second slider 42 drives the moving block 22 to move away from the lower electrode 15; so that the clamping blocks 242 in the first clamping mechanism 23 and the second clamping mechanism 24 both maintain a certain distance from the workpiece.

[0079] Then, the cylinder is started to make the upper electrode 14 contact the workpiece away from the main body 11, and then the upper electrode 14 and the lower electrode 15 are energized so that the upper electrode 14 and the lower electrode 15 connect the two workpieces together.

[0080] When special devices need to be welded, first, solder paste is applied to the side of the workpiece on the first supporting plate 27 away from the first fixing block 21, and solder paste is applied to the side of the workpiece on the second supporting plate 28 away from the first fixing block 21; then, the first clamping mechanism 23 and the second clamping mechanism 24 are both clamped to hold the workpiece; then, the second motor 433 is started, so that the first supporting plate 27 and the second supporting plate 28 no longer hold the workpiece; then, the third motor 551 is started, and the output shaft of the third motor 551 drives the first rotating shaft 53 to rotate, and the first rotating shaft 53 drives the second connecting block 52 to rotate, so that the second clamping mechanism 23 and the second clamping mechanism 24 are both clamped to hold the workpiece; then, the second motor 433 is started, so that the first supporting plate 27 and the second supporting plate 28 no longer support the workpiece; then, the third motor 551 is started, and the output shaft of the third motor 551 drives the first rotating shaft 53 to rotate, and the first rotating shaft 53 drives the second connecting block 52 to rotate, so that the second clamping mechanism 23 and the second clamping mechanism 24 are both clamped to hold the workpiece; then, the second motor 433 is started, and the second motor 551 is started, and the output shaft of the third motor 551 drives the first rotating shaft 53 to rotate, and the first rotating shaft 53 drives the second connecting block 52 to rotate, and the second clamping mechanism 23 and the second clamping mechanism 24 are both clamped to hold the workpiece; then, the second motor 433 is started, and ... The workpiece clamped by the first clamping mechanism 24 rotates one side of the workpiece clamped by the first clamping mechanism 23, and then the fourth motor 552 is started, the output shaft of the fourth motor 552 drives the second rotating shaft 54 ​​to rotate, the second rotating shaft 54 ​​drives the second fixed block 241 in the second clamping mechanism 24 to rotate, and the two clamping blocks 242 on the second fixed block 241 drive the workpiece to rotate, so that the side of the workpiece clamped by the second clamping mechanism 24 with the solder paste brushed is facing the workpiece clamped by the first clamping mechanism 23; then the third motor 551 is started, so that the workpiece clamped by the second clamping mechanism 24 is located directly above the workpiece of the first clamping mechanism 23.

[0081] The first motor 251 is started again to place the two workpieces on the lower electrode 15 .

[0082] The embodiment of the present application also discloses a welding process of a resistance welding device used for solenoid valve processing.

[0083] refer to Figure 1 , a welding process of a resistance welding device for solenoid valve processing, comprising the following steps:

[0084] S1: First, one of the two workpieces to be welded is placed on the first supporting plate 27 , and the other workpiece is placed on the second supporting plate 28 .

[0085] S2: Then start the fifth motor 244 in the first clamping mechanism 23 and the second clamping mechanism 24, so that the two clamping blocks 242 in the first clamping mechanism 23 clamp the workpiece on the first supporting plate 27, and the two clamping blocks 242 in the second clamping mechanism 24 clamp the workpiece on the second supporting plate 28.

[0086] S3: Then start the second motor 433, so that the first slider 41 drives the supporting block 26 to move away from the lower electrode 15, and at the same time, the second slider 42 drives the moving block 22 to move toward the lower electrode 15, so that the first supporting plate 27 and the second supporting plate 28 no longer support the workpiece. When the first supporting plate 27 and the second supporting plate 28 no longer support the workpiece, start the first motor 251, so that the sliding block 31 slides in the third sliding groove 221 of the moving block 22, and when the sliding block 31 moves, the first lifting block 32 and the second lifting block 33 will move toward the direction close to the main body 11, so that the workpiece clamped by the two clamping blocks 242 in the first clamping mechanism 23 hits the lower electrode 15, and the workpiece clamped by the two clamping blocks 242 in the second clamping mechanism 24 hits the workpiece clamped by the two clamping blocks 242 in the first clamping mechanism 23.

[0087] S4: Then start the fifth motor 244 in the first clamping mechanism 23 and the second clamping mechanism 24, so that the two clamping blocks 242 in the first clamping mechanism 23 no longer clamp the workpiece, and the two clamping blocks 242 in the second clamping mechanism 24 no longer clamp the workpiece. Then start the second motor 433, so that the first slider 41 drives the supporting block 26 to move toward the direction close to the lower electrode 15, and the second slider 42 drives the moving block 22 to move away from the lower electrode 15; so that the clamping blocks 242 in the first clamping mechanism 23 and the second clamping mechanism 24 are kept at a certain distance from the workpiece.

[0088] S5: Then the air cylinder is started, and the piston rod of the air cylinder drives the upper electrode 14 to move, so that the upper electrode 14 contacts the workpiece away from the lower electrode 15 and applies a certain pressure to the workpiece.

[0089] S6: Then start the cylinder to make the upper electrode 14 contact the workpiece away from the main body 11, and then energize the upper electrode 14 and the lower electrode 15, which will apply one or several instantaneous pulse discharges of quantitative large current to the workpiece, so that instantaneous heat is generated on the surfaces of the two workpieces. Under the conditions of heat and pressure, the material molecules on the surfaces of the two workpieces invade and bond with each other, thereby producing a reliable coating hard-connected weld.

[0090] In order to obtain better controlled discharge pulses, the discharge of energy storage capacitors is preferred, so that the discharge time and current of each welding can be effectively quantified and the discharge energy can be controlled and stable. The workpiece surface where the electrode contacts the workpiece uses a high-conductivity and high-temperature resistant electrode that is much larger than the welding point surface.

[0091] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A resistance welding device for processing a solenoid valve, comprising a main body (11), a support block (12), a lifting member (13), an upper electrode (14) and a lower electrode (15), wherein the support block (12) is arranged on the main body (11), the upper electrode (14) is arranged on the support block (12) via the lifting member (13); and the lower electrode (15) is arranged on the main body (11) below the upper electrode (14); It is characterized in that The workpiece transfer device (2) further comprises a workpiece transfer device (2), wherein the workpiece transfer device (2) comprises a first fixed block (21), a moving block (22), an adjustment block (3), a first clamping mechanism (23), a second clamping mechanism (24) and a moving assembly (25). The first fixing block (21) is arranged on the main body (11) at one side of the lower electrode (15); The moving block (22) is arranged on the first fixed block (21); The adjusting block (3) is slidably arranged on the moving block (22); The first clamping mechanism (23) and the second clamping mechanism (24) are both arranged on the adjustment block (3); The moving component (25) is arranged on the moving block (22) and connected to the adjusting block (3); A supporting block (26) is arranged on the first fixed block (21), a first supporting plate (27) and a second supporting plate (28) are arranged on the supporting block (26), the second supporting plate (28) is located on a side of the first supporting plate (27) away from the first fixed block (21), the first clamping mechanism (23) is located between the first supporting plate (27) and the second supporting plate (28), and the second clamping mechanism (24) is located on a side of the second supporting plate (28) away from the first supporting plate (27); The adjustment block (3) comprises a sliding block (31), a first lifting block (32), a second lifting block (33) and a first adjustment component (34). The sliding block (31) is slidingly arranged on the moving block (22), and the moving assembly (25) is connected to the sliding block (31); the first lifting block (32) is slidingly arranged on the sliding block (31), and the first clamping mechanism (23) is arranged on the first lifting block (32); the second lifting block (33) is slidingly arranged on the first lifting block (32), and the second clamping mechanism (24) is arranged on the second lifting block (33); the first adjusting assembly (34) is arranged on the sliding block (31), and the first lifting block (32) and the second lifting block (33) are both connected to the first adjusting assembly (34); The first fixed block (21) is provided with an adjustment mechanism (4), the adjustment mechanism (4) comprising a first sliding block (41), a second sliding block (42) and an adjustment assembly (43). The first fixed block (21) is provided with a first sliding groove (211) and a second sliding groove (212) perpendicular to the first sliding groove (211); the first sliding block (41) is slidably disposed in the first sliding groove (211), and the supporting block (26) is connected to the first sliding block (41); The second sliding block (42) is slidably disposed in the second sliding groove (212), and the moving block (22) is disposed on the second sliding block (42); The adjustment component (43) is arranged on the first fixed block (21), and the first sliding block (41) and the second sliding block (42) are both connected to the adjustment component (43); The sliding block (31) is provided with a first groove (311), the first lifting block (32) is slidably disposed in the first groove (311), the first lifting block (32) is provided with a sliding hole (321), the second lifting block (33) is slidably disposed in the sliding hole (321), and the second lifting block (33) located in the sliding hole (321) is provided with a second groove (331); The moving assembly (25) comprises a first motor (251), a first gear (252) and a first rack (253). The first motor (251) is arranged on the sliding block (31), and the first gear (252) is key-connected to the output shaft of the first motor (251); the first rack (253) is arranged on the moving block (22) and meshes with the first gear (252); The first adjustment assembly (34) comprises a first drive plate (341), a second drive plate (342), an adjustment shaft (343), a second gear (344), a first adjustment screw (345) and a second adjustment screw (346). The first driving plate (341) is arranged on the first lifting block (32) and blocks the sliding hole (321); the second driving plate (342) is arranged on the second lifting block (33) and blocks the second groove (331); The adjusting shaft (343) is rotatably arranged on the sliding block (31); the second gear (344) is key-connected to the adjusting shaft (343) and meshes with the first rack (253); The first adjusting screw (345) is arranged on the adjusting shaft (343), one end of the first adjusting screw (345) away from the adjusting shaft (343) passes through the first driving plate (341) and is located in the sliding hole (321), and the first adjusting screw (345) is threadedly connected to the first driving plate (341); The second adjusting screw (346) is arranged on the first adjusting screw (345), one end of the second adjusting screw (346) away from the adjusting shaft (343) passes through the second driving plate (342) and is located in the second groove (331), and the second adjusting screw (346) is threadedly connected to the second driving plate (342).

2. The resistance welding equipment for solenoid valve processing according to claim 1, characterized in that: The second lifting block (33) is provided with a rotating mechanism (5), wherein the rotating mechanism (5) comprises a first connecting block (51), a second connecting block (52), a first rotating shaft (53), a second rotating shaft (54) and a rotating assembly. The first connection block (51) is fixedly arranged on the second lifting block (33), the first rotating shaft (53) is rotatably arranged on the first connection block (51), the second connection block (52) is arranged on the first rotating shaft (53), the second rotating shaft (54) is rotatably arranged on the second connection block (52), and the second clamping mechanism (24) is arranged on the second rotating shaft (54); The rotating assembly is arranged on the first connecting block (51), and the first rotating shaft (53) and the second rotating shaft (54) are both connected to the rotating assembly.

3. The resistance welding equipment for solenoid valve processing according to claim 1, characterized in that: The lifting member (13) is provided with a connection mechanism (6) connected to the upper electrode (14), the connection mechanism (6) comprising a third connection block (61), a fourth connection block (62), a main rod (63), a secondary rod (64) and a spring (65). The third connection block (61) is connected to the lifting member (13), a third groove (611) is provided on the third connection block (61), the fourth connection block (62) is slidably arranged in the third groove (611), and the upper electrode (14) is arranged on the fourth connection block (62); One end of the main rod (63) is connected to the third connecting block (61) and the other end is provided with a fourth groove; One end of the auxiliary rod (64) is slidably disposed in the fourth groove and the other end is connected to the fourth connecting block (62); The spring (65) is located in the fourth groove, one end of the spring (65) is connected to the main rod (63) and the other end is connected to the auxiliary rod (64).

4. The resistance welding equipment for solenoid valve processing according to claim 3 is characterized in that: The main body (11) is provided with a cooling device (7), the cooling device (7) comprising a cooling pipe (71), a transfer pipe (72), a circulation box (73), a water inlet pipe (74), a water outlet pipe (75), a power pump and a limiting block (76). A portion of the cooling tube (71) is located on the fourth connecting block (62), and the rest of the cooling tube (71) is located inside the upper electrode (14); Two transfer tubes (72) are provided, and the two transfer tubes (72) correspond to the two ends of the cooling tube (71) one by one, one end of the transfer tube (72) is connected to the cooling tube (71) and the other end is provided on the third connection block (61); The circulation box (73) is arranged on one side of the main body (11), and the limiting block (76) is arranged on the supporting block (12); One end of the water inlet pipe (74) is connected to the circulation box (73) and the other end is connected to one of the transfer pipes (72); One end of the water outlet pipe (75) is connected to the circulation box (73) and the other end is connected to another transfer pipe (72); The power pump is arranged in the circulation box (73) and connected to the water inlet pipe (74); A plurality of limiting blocks (76) are provided, and the plurality of limiting blocks (76) are all provided on the supporting block (12), and a limiting hole is provided on the limiting block (76) for the water inlet pipe (74) or the water outlet pipe (75) to pass through.

5. The resistance welding equipment for solenoid valve processing according to claim 4, characterized in that: The third connecting block (61) is provided with a first tensioning mechanism (8) connected to the two transfer tubes (72), the first tensioning mechanism (8) comprising a first adjusting block (81), a first tensioning block (82) and a second adjusting assembly (83). The first adjustment block (81) is slidably disposed on the third connection block (61), the first tensioning block (82) is fixedly disposed on the first adjustment block (81), and a portion of the transfer tube (72) is located on the first tensioning block (82); The second adjustment component (83) is arranged on the third connection block (61), and the fourth connection block (62) and the first adjustment block (81) are both connected to the second adjustment component (83).

6. The resistance welding equipment for solenoid valve processing according to claim 4, characterized in that: The support block (12) is provided with a through hole. The support block (12) is provided with a second tensioning mechanism (9), the second tensioning mechanism (9) comprising a second adjustment block (91), a second tensioning block (92) and a third adjustment assembly (93). One end of the second adjustment block (91) is fixedly connected to the third connection block (61) and the other end passes through the through hole; Two second tensioning blocks (92) are provided, and the two second tensioning blocks (92) are both slidably arranged on the support block (12); a portion of the water inlet pipe (74) is connected to one of the second tensioning blocks (92), and a portion of the water outlet pipe (75) is connected to the other second tensioning block (92); The third adjustment component (93) is arranged on the support block (12), and the two second tensioning blocks (92) and the second adjustment block (91) are both connected to the third adjustment component (93).

7. The resistance welding equipment for solenoid valve processing according to claim 4, characterized in that: The water inlet pipe (74) is provided with an emptying assembly (77), wherein the emptying assembly (77) comprises an air pump (771) and an emptying pipe (772). The air pump (771) is arranged on one side of the main body (11); one end of the exhaust pipe (772) is connected to the air pump (771) and the other end is connected to the water inlet pipe (74).

8. A welding process using the resistance welding equipment for solenoid valve processing as claimed in claim 1, characterized in that: The following steps are involved: S1: First, one of the two workpieces to be welded is placed on a first supporting plate (27), and the other workpiece is placed on a second supporting plate (28); S2: Then, the first clamping mechanism (23) clamps the workpiece located on the first supporting plate (27), and the second clamping mechanism (24) clamps the workpiece located on the second supporting plate (28); S3: Then, the moving component (25) is started. When the moving component (25) moves, the length of the adjustment block (3) changes, so that the workpiece clamped by the second clamping mechanism (24) moves toward the direction close to the workpiece clamped by the first clamping mechanism (23); when the workpiece clamped by the first clamping mechanism (23) moves onto the lower electrode (15), the workpiece clamped by the second clamping mechanism (24) contacts the workpiece clamped by the first clamping mechanism (23); S4: The first clamping mechanism (23) and the second clamping mechanism (24) no longer clamp the workpiece; S5: then starting the lifting member (13), the lifting member (13) drives the upper electrode (14) to move, so that the upper electrode (14) contacts the workpiece away from the lower electrode (15) and applies a certain pressure to the workpiece; S6: Finally, the upper electrode (14) and the lower electrode (15) are energized, and the upper electrode (14) and the lower electrode (15) weld the two workpieces together.

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