A welding process for high-voltage quick-connect connector

Abstract

The invention discloses a welding process for a high-voltage quick-plug connector, comprising the following steps: S1: a first slot body is provided on the front and back sides of a conductive connecting piece, and a welding boss is formed in the middle of the first slot body; S2: two conductive spring sheets are assembled on the front and back sides of the conductive connecting piece corresponding to the position of the first slot body, and a second slot body corresponding to the position of the first slot body is provided on the surface of the conductive spring sheet facing away from the conductive connecting piece, so as to obtain an assembly; S3: front welding of the assembly: a first laser beam is moved along the trajectory of the second slot body to melt the bottom wall and the welding boss of the second slot body and form a molten pool in the first slot body, and a second laser beam is used to place the liquid metal after the welding wire is melted in the molten pool and the second slot body; S4: the assembly of step S2 is turned over, the welding process of step S3 is repeated, and the back side of the assembly is welded; the invention reduces the thermal influence of the welding process on the surrounding area, and effectively reduces the deformation of the conductive spring sheets and the conductive connecting piece during the welding process.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding process for a high-voltage quick-plug connector. Background Art

[0002] High-voltage quick-plug connectors are an electrical connector used in high-voltage circuits of new energy vehicles. Since they need to conduct large currents and withstand the forces during the terminal plugging and unplugging process, they have high requirements for welding strength and welding pool area.

[0003] Most of the existing high-voltage quick-plug connectors use laser spot welding technology to weld the conductive spring pieces and the conductive connecting pieces. Due to direct welding, the molten pool needs to penetrate the conductive piece, which requires the use of a high-energy density laser beam for welding. The high-energy density laser beam causes more heat to accumulate in the welding molten pool area, making the heat-affected zone larger, which can easily cause deformation of the conductive connecting piece and the conductive spring piece in the heat-affected zone. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a high-voltage quick-plug connector welding process, which reduces the thermal impact of the welding process on the surrounding area and effectively reduces the deformation of the conductive spring sheet and the conductive connecting sheet during the welding process.

[0005] To achieve the above object, the specific scheme of the present invention is as follows:

[0006] A high-voltage quick-connector welding process comprises the following steps:

[0007] S1: opening a first slot body on the front and back sides of the conductive connecting sheet, and forming a welding boss in the middle of the first slot body;

[0008] S2: Assemble two conductive springs corresponding to the positions of the first slots on the front and back surfaces of the conductive connecting sheet, and open a second slot corresponding to the position of the first slot on the surface of the conductive spring facing away from the conductive connecting sheet to obtain an assembly;

[0009] S3: front welding of the assembly: the first laser beam moves along the trajectory of the second tank body to melt the bottom wall and the welding boss of the second tank body and form a molten pool in the first tank body, and the liquid metal after the welding wire is melted is placed in the molten pool and the second tank body by the second laser beam;

[0010] S4: Turn over the assembly of step S2, repeat the welding process of step S3, and weld the back side of the assembly.

[0011] Optionally, the depth of the first slot is less than half the thickness of the conductive connecting sheet.

[0012] Optionally, the width of the second groove body is greater than the diameter of the welding wire.

[0013] Optionally, it further includes a welding device, the welding device includes a rotary feeding device, the rotary feeding device includes a rotary table and a plurality of carrier mechanisms arranged on the rotary table along the circumferential direction;

[0014] The carrier mechanism includes a carrier seat, a flip assembly disposed on the carrier seat, and a carrier unit rotatably disposed on the carrier seat, wherein the flip assembly is connected to the carrier unit to drive the carrier unit to flip;

[0015] The rotary table is fixed with a driving block. When the carrier mechanism rotates until the flip assembly contacts the driving block, the driving block causes the flip assembly to drive the carrier unit to flip 180 degrees.

[0016] Optionally, the flip assembly includes a guide seat fixed to the carrier seat, a rack slidably passing through the guide seat, a push plate arranged at one end of the rack, and a first spring connected between the push plate and the guide seat; a contact roller is axially connected to the push plate;

[0017] The carrier unit is provided with a gear which meshes with the other end of the rack.

[0018] Optionally, the carrier unit includes a carrier body and a press frame slidably inserted into the carrier body, a rotating shaft is protruding from one side of the carrier body, a U-shaped notch is provided at one end of the carrier body, the rotating shaft is rotatably connected to the carrier seat, the gear is sleeved on the rotating shaft, the press frame and the U-shaped notch are located at the same end, and a second spring is connected between the press frame and the carrier body, so that the press frame maintains clamping force on the conductive connecting sheet and the conductive spring sheet through the second spring.

[0019] Optionally, a limit pin is protrudingly provided on one side of the carrier body, and a semi-arc groove is provided on one side of the carrier seat, and the limit pin is movably embedded in the semi-arc groove to limit the flipping angle of the carrier body.

[0020] Optionally, the carrier body is provided with a first positioning pin, the pressing frame is provided with a second positioning pin, the conductive connecting plate is provided with a first positioning hole for cooperating with the first positioning pin, and the conductive connecting plate and the conductive spring sheet are both provided with a second positioning hole for cooperating with the second positioning pin.

[0021] Optionally, the welding device further includes a connecting piece feeding device, a first slotting device, a spring piece feeding device, a second slotting device, a first laser welding device and a second laser welding device, which are sequentially arranged around the rotary feeding device in a circumferential direction;

[0022] The first laser welding device and the second laser welding device have the same structure, both of which include a first laser for generating a first laser beam, a second laser for generating a second laser beam, and a wire feeder for conveying welding wire, wherein the wire feeder is located between the first laser and the second laser.

[0023] Optionally, the welding equipment also includes a base plate, and the rotary feeding device, the connecting piece feeding device, the first slotting device, the spring piece feeding device, the second slotting device, the first laser welding device and the second laser welding device are all fixedly mounted on the base plate.

[0024] The beneficial effects of the present invention are as follows: by providing a second groove body on the conductive spring sheet, the present invention reduces the metal thickness of the welding part compared with direct welding, so that a molten pool can be formed with a smaller laser energy density, thereby reducing the welding heat affected zone; at the same time, by providing a first groove body on the conductive connecting sheet and arranging a welding boss in the first groove body, compared with the case of direct welding without providing a groove around the welding boss, during the formation of the molten pool, the metal in the area around the welding boss is removed, so that the area for heat transfer to the periphery of the molten pool during the formation of the molten pool is reduced, thereby further reducing the thermal impact of the welding process on the surrounding area, and effectively reducing the deformation of the conductive spring sheet and the conductive connecting sheet during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic flow chart of the welding process of the present invention;

[0026] Figure 2 It is an exploded schematic diagram of a high-voltage quick-connect connector;

[0027] Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A;

[0028] Figure 4 It is a structural schematic diagram of the welding equipment of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the rotary feeding device of the present invention;

[0030] Figure 6 is a schematic structural diagram of the carrier mechanism of the present invention;

[0031] Figure 7 is an exploded schematic diagram of the carrier mechanism of the present invention;

[0032] Figure 8 is a schematic structural diagram of the first laser welding device or the second laser welding device of the present invention;

[0033] Description of the accompanying drawings: 1, bottom plate; 2, rotary feeding device; 21, rotary worktable; 22, carrier mechanism; 221, carrier seat; 2211, semi-arc groove; 222, flip assembly; 2221, guide seat; 2222, rack; 2223, push plate; 2224, first spring; 2225, contact roller; 223, carrier unit; 2231, carrier body; 2232, press frame; 2233, second spring; 2234, gear; 2235, rotating shaft; 2236, U-shaped notch; 2237, limit Position pin; 2238, first positioning pin; 2239, second positioning pin; 23, drive block; 3, connecting piece feeding device; 4, first slotting device; 5, spring piece feeding device; 6, second slotting device; 7, first laser welding device; 8, second laser welding device; 91, first laser; 92, second laser; 93, wire feeder; 10, conductive connecting piece; 101, first slot body; 102, welding boss; 103, first positioning hole; 20, conductive spring piece; 201, second slot body; 30, second positioning hole. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation scope of the present invention is not limited thereto.

[0035] like Figures 1 to 8 As shown, a high-voltage quick-plug connector welding process described in this embodiment includes a conductive connecting piece 10 and a conductive spring 20 arranged on the front and back sides of the conductive connecting piece 10. The welding process specifically includes the following steps:

[0036] Step S1: A first slot 101 is formed on the front and back sides of the conductive connecting sheet 10, and a welding boss 102 is formed in the middle of the first slot 101. The welding boss 102 does not contact the slot wall of the first slot 101. Figure 2 and Figure 3 As shown; preferably, the depth of the first slot 101 is less than half the thickness of the conductive connecting sheet 10;

[0037] Step S2: assemble the two conductive springs 20 on the front and back surfaces of the conductive connecting sheet 10 corresponding to the positions of the first slots 101, and open a second slot 201 corresponding to the position of the first slot 101 on the surface of the conductive spring 20 facing away from the conductive connecting sheet 10. Figure 2 As shown, an assembly is obtained. Preferably, the width of the second tank body 201 is greater than the diameter of the welding wire, so that the liquid metal after the welding wire is melted can fully enter the second tank body 201;

[0038] Step S3: welding the front side of the assembly: the first laser beam is moved along the trajectory of the second trough body 201 to melt the bottom wall of the second trough body 201 and the welding boss 102 and form a molten pool in the first trough body 101, thereby welding the conductive spring piece 20 and the conductive connecting piece 10, and the welding wire is melted by the second laser beam, and the melted liquid metal falls into the molten pool and the second trough body 201, and the conductive spring piece 20 and the conductive connecting piece 10 on the front side are welded and fixed after solidification. During the movement of the first laser beam and the second laser beam, the first laser beam is located at the front end of the moving direction, and the second laser beam is located at the rear end of the moving direction;

[0039] Preferably, the spot diameter of the first laser beam is larger than the width of the welding boss 102 so that the welding boss 102 can be melted quickly and fully;

[0040] Step S4: Turn over the assembly of step S2, repeat the welding process of step S3, and weld the back of the assembly so that the conductive spring sheet 20 on the back is welded and fixed to the conductive connecting sheet 10; after completion, unload the material, and the welding of the high-voltage quick-plug connector is completed.

[0041] In this embodiment, by opening a second groove body 201 on the conductive spring piece 20, the metal thickness of the welding part is reduced compared with direct welding, so that a molten pool can be formed with a smaller laser energy density, thereby reducing the welding heat affected zone; at the same time, by opening a first groove body 101 on the conductive connecting piece 10 and arranging a welding boss 102 in the first groove body 101, compared with the case of direct welding without opening a groove around the welding boss 102, during the formation of the molten pool, the metal in the area around the welding boss 102 is removed, so that the area for heat transfer to the periphery of the molten pool during the formation of the molten pool is reduced, thereby further reducing the thermal impact of the welding process on the surrounding area, and effectively reducing the deformation of the conductive spring piece 20 and the conductive connecting piece 10 during the welding process.

[0042] In addition, during the formation of the molten pool, the welding wire will absorb the heat radiated by the molten pool. On the one hand, this part of heat increases the temperature of the welding wire itself, which is conducive to melting the welding wire with a smaller energy density. On the other hand, the welding wire also takes away part of the heat in the molten pool while absorbing heat and raising the temperature, thereby further reducing the range of the heat affected zone of the molten pool.

[0043] It should be noted that if Figure 2As shown, in order to ensure the welding firmness between the conductive connecting sheet 10 and the conductive spring sheet 20, the first slot body 101 includes a first frame-shaped portion and a first X-shaped portion, the four corner positions of the first frame-shaped portion are connected to the four ends of the first X-shaped portion, the shape of the welding boss 102 is adapted to the shape of the first slot body 101, and the second slot body 201 includes a second frame-shaped portion and a second X-shaped portion, the four corner positions of the second frame-shaped portion are connected to the four ends of the second X-shaped portion to ensure the conductivity of the connector.

[0044] like Figures 4 to 8 As shown, a high-voltage quick-plug connector welding process described in this embodiment, in some embodiments, also includes welding equipment, the welding equipment includes a rotary feeding device 2, the rotary feeding device 2 includes a rotary worktable 21 and a plurality of carrier mechanisms 22 circumferentially arranged on the rotary worktable 21; the carrier mechanism 22 includes a carrier seat 221 fixedly mounted on the rotary worktable 21, a flip assembly 222 arranged on the carrier seat 221 and a carrier unit 223 rotatably arranged on the carrier seat 221, the flip assembly 222 is connected to the carrier unit 223 to drive the carrier unit 223 to flip; the rotary worktable 21 is fixedly installed with a driving block 23 near its edge, when the carrier mechanism 22 rotates until the flip assembly 222 contacts the driving block 23, the driving block 23 causes the flip assembly 222 to drive the carrier unit 223 to flip 180 degrees.

[0045] Specifically, in actual use, the rotary workbench 21 drives each carrier mechanism 22 to rotate in the circumferential direction, so as to sequentially perform the loading and grooving of the conductive connecting piece 10, the loading and grooving of the conductive spring piece 20, and the welding operations of the conductive connecting piece 10 and the conductive spring piece 20, thereby completing the welding process of the high-voltage quick-plug connector; after the conductive spring piece 20 on the front is welded, the rotary workbench 21 drives the carrier mechanism 22 to rotate, so that the flipping assembly 222 rotates to contact the driving block 23, and the driving block 23 causes the flipping assembly 222 to drive the carrier unit 223 to drive the assembly to synchronously flip 180 degrees, so that the conductive spring piece 20 on the back is facing upward, thereby welding the conductive spring piece 20 on the back.

[0046] like Figures 5 to 7 As shown, a high-pressure quick-plug connector welding process described in this embodiment, in some embodiments, the flip assembly 222 includes a guide seat 2221 fixedly mounted on the carrier seat 221, a rack 2222 slidably penetrated through the guide seat 2221, a push plate 2223 fixedly connected to one end of the rack 2222, and a first spring 2224 connected between the push plate 2223 and the guide seat 2221; a contact roller 2225 is axially connected to the push plate 2223; the carrier unit 223 is equipped with a gear 2234, and the gear 2234 is meshed with the other end of the rack 2222.

[0047] Specifically, when the contact roller 2225 contacts the driving block 23, the driving block 23 applies a thrust to the contact roller 2225, causing the rack 2222 to slide relative to the guide seat 2221, the rack 2222 drives the gear 2234 to rotate, and the gear 2234 drives the carrier unit 223 to flip 180 degrees, thereby realizing the flipping of the assembly.

[0048] like Figure 6 and Figure 7 As shown, a high-voltage quick-plug connector welding process described in this embodiment, in some embodiments, the carrier unit 223 includes a carrier body 2231 and a press frame 2232 slidably penetrated in the carrier body 2231, a rotating shaft 2235 is protruded from one side of the carrier body 2231, and a U-shaped notch 2236 is provided at one end of the carrier body 2231 to facilitate welding operations on the conductive spring sheet 20, the rotating shaft 2235 is rotatably connected to the carrier seat 221, the gear 2234 is sleeved on the rotating shaft 2235, the press frame 2232 and the U-shaped notch 2236 are located at the same end, and a second spring 2233 is connected between the press frame 2232 and the carrier body 2231, and the second spring 2233 is used to enable the press frame 2232 to maintain a clamping force on the conductive connecting sheet 10 and the conductive spring sheet 20.

[0049] Specifically, the press frame 2232 has two guide rods, and a clamping platform is provided at the end of the guide rod. The second spring 2233 is sleeved on the outer wall of the guide rod, and the two ends of the second spring 2233 are in contact with the carrier body 2231 and the clamping platform; in actual use, the press frame 2232 is controlled to slide relative to the carrier body 2231, so that the second spring 2233 is compressed, thereby increasing the distance between the press frame 2232 and the carrier body 2231, so as to facilitate the loading of the conductive connecting sheet 10 and the conductive spring sheet 20. After the loading is completed, the press frame 2232 is reset under the elastic force of the second spring 2233, thereby clamping and fixing the conductive connecting sheet 10 and the conductive spring sheet 20 placed on the carrier body 2231.

[0050] like Figure 7 As shown, in the welding process of a high-voltage quick-connector described in this embodiment, in some embodiments, a limiting pin 2237 is convexly provided on one side of the carrier body 2231, and a semi-arc groove 2211 is provided on one side of the carrier seat 221, and the limiting pin 2237 is movably embedded in the semi-arc groove 2211 to limit the flipping angle of the carrier body 2231. In this embodiment, the limiting pin 2237 cooperates with the semi-arc groove 2211 to limit the flipping angle range of the carrier body 2231.

[0051] like Figure 2 , Figure 6 and Figure 7As shown, in some embodiments of a high-voltage quick-plug connector welding process described in this embodiment, the carrier body 2231 is provided with a first positioning pin 2238, the press frame 2232 is provided with a second positioning pin 2239, the conductive connecting piece 10 is provided with a first positioning hole 103 for cooperating with the first positioning pin 2238, and the conductive connecting piece 10 and the conductive spring piece 20 are both provided with a second positioning hole 30 for cooperating with the second positioning pin 2239. In this embodiment, the conductive connecting piece 10 is installed on the carrier body 2231 through the first positioning pin 2238 and the first positioning hole 103, and the conductive spring piece 20 and the conductive connecting piece 10 are clamped and fixed by providing the second positioning pin 2239 and the second positioning hole 30, and the conductive spring piece 20 and the conductive connecting piece 10 can also be effectively prevented from being offset during the rotation process.

[0052] like Figure 4 As shown, in the welding process of a high-voltage quick-connector described in this embodiment, in some embodiments, the welding equipment also includes a connecting piece feeding device 3, a first slotting device 4, a spring feeding device 5, a second slotting device 6, a first laser welding device 7 and a second laser welding device 8 arranged in sequence around the rotary feeding device 2; the first laser welding device 7 and the second laser welding device 8 have the same structure, both of which include a first laser 91 for generating a first laser beam, a second laser 92 for generating a second laser beam, and a wire feeder 93 for conveying welding wire, and the wire feeder 93 is located between the first laser 91 and the second laser 92. In the welding process of a high-voltage quick-connector described in this embodiment, in some embodiments, the welding equipment also includes a bottom plate 1, and the rotary feeding device 2, the connecting piece feeding device 3, the first slotting device 4, the spring feeding device 5, the second slotting device 6, the first laser welding device 7 and the second laser welding device 8 are all fixedly mounted on the bottom plate 1; such an arrangement makes the structure more compact.

[0053] In actual use, the rotary table 21 drives the carrier unit 223 to rotate to a position corresponding to the position of the connecting piece feeding device 3. The connecting piece feeding device 3 transfers the conductive connecting piece 10 to be welded and assembled to the carrier mechanism 22, and clamps and fixes the conductive connecting piece 10 through the pressing frame 2232. Then, the carrier unit 223 carrying the conductive connecting piece 10 is transferred to a position corresponding to the first slotting device 4. The first slotting device 4 respectively opens the first slot body 101 on the front and back surfaces of the conductive connecting piece 10, and forms a welding boss 102 in the middle of the first slot body 101.

[0054] Then the rotary table 21 drives the carrier unit 223 and the conductive connecting sheet 10 to rotate until they are aligned with the position of the spring sheet feeding device 5. The spring sheet feeding device 5 assembles the conductive spring sheet 20 against the front and back sides of the conductive connecting sheet 10 to form an assembly. After assembly, the rotary table 21 drives the carrier unit 223 to rotate until it is aligned with the position of the second slotting device 6. The second slotting device 6 opens a second slot 201 corresponding to the position of the first slot 101 on the conductive spring sheet 20 located on the front and back sides. Then the rotary table 21 drives the carrier unit 223 to rotate until it is aligned with the position of the first laser welding device 7. The first laser welding device The first laser 91 of the device 7 generates a first laser beam and projects it onto the bottom wall of the second slot body 201. At the same time, the first laser beam moves along the trajectory of the second slot body 201, so that the bottom wall of the second slot body 201 and the welding boss 102 are melted and a molten pool is formed in the first slot body 101, thereby welding the conductive spring 20 and the conductive connecting sheet 10; the second laser 92 of the first laser welding device 7 generates a second laser beam to melt the welding wire, and the liquid metal formed after the welding wire is melted falls into the molten pool and fills the second slot body 201. After solidification, the conductive connecting sheet 10 and the conductive spring sheet 20 located on the front are welded into a whole;

[0055] Then the rotary table 21 drives the carrier unit 223 to rotate to align with the position of the second laser welding device 8. At this time, the carrier unit 223 is turned 180 degrees under the action of the driving block 23, so that the conductive spring sheet 20 on the back is facing upward. Then the second laser welding device 8 repeats the welding action of the first laser welding device 7 to weld the conductive connecting sheet 10 and the conductive spring sheet 20 on the back into a whole, thereby obtaining a high-voltage quick-plug connector.

[0056] The welded high-voltage quick-connector is then removed from the carrier unit 223 , and the idle carrier unit 223 is repositioned again by the rotary table 21 to align with the connecting piece feeding device 3 to perform the welding operation of the next high-voltage quick-connector.

[0057] The above is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.

Claims

1. A high-voltage quick-connector welding process, characterized in that: The invention comprises welding equipment; the welding equipment comprises a rotary feeding device, the rotary feeding device comprises a rotary table and a plurality of carrier mechanisms arranged on the rotary table along the circumferential direction; The carrier mechanism includes a carrier seat, a flip assembly disposed on the carrier seat, and a carrier unit rotatably disposed on the carrier seat, wherein the flip assembly is connected to the carrier unit to drive the carrier unit to flip; The rotary table is fixed with a driving block. When the carrier mechanism rotates until the flip assembly contacts the driving block, the driving block causes the flip assembly to drive the carrier unit to flip 180 degrees. The flip assembly includes a guide seat fixed to the carrier seat, a rack slidably passing through the guide seat, a push plate arranged at one end of the rack, and a first spring connected between the push plate and the guide seat; a contact roller is axially connected to the push plate; The carrier unit is provided with a gear which meshes with the other end of the rack; The carrier unit includes a carrier body and a press frame slidably arranged on the carrier body, a rotating shaft is convexly arranged on one side of the carrier body, a U-shaped notch is arranged at one end of the carrier body, the rotating shaft is rotatably connected to the carrier seat, the gear is sleeved on the rotating shaft, the press frame and the U-shaped notch are located at the same end, and a second spring is connected between the press frame and the carrier body, so that the press frame maintains a clamping force on the conductive connecting sheet and the conductive spring sheet through the second spring; A limit pin is convexly provided on one side of the carrier body, and a semi-arc groove is provided on one side of the carrier seat, and the limit pin is movably embedded in the semi-arc groove to limit the flipping angle of the carrier body; The carrier body is provided with a first positioning pin, the material pressing frame is provided with a second positioning pin, the conductive connecting piece is provided with a first positioning hole for cooperating with the first positioning pin, and the conductive connecting piece and the conductive spring sheet are both provided with a second positioning hole for cooperating with the second positioning pin; The welding process includes the following steps: S1: opening a first slot body on the front and back sides of the conductive connecting sheet, and forming a welding boss in the middle of the first slot body; S2: Assemble two conductive springs corresponding to the positions of the first slots on the front and back surfaces of the conductive connecting sheet, and open a second slot corresponding to the position of the first slot on the surface of the conductive spring facing away from the conductive connecting sheet to obtain an assembly; S3: front welding of the assembly: the first laser beam moves along the trajectory of the second tank body to melt the bottom wall and the welding boss of the second tank body and form a molten pool in the first tank body, and the liquid metal after the welding wire is melted is placed in the molten pool and the second tank body by the second laser beam; S4: Turn over the assembly of step S2, repeat the welding process of step S3, and weld the back side of the assembly.

2. A high-voltage quick-connector welding process according to claim 1, characterized in that: The depth of the first slot is less than half of the thickness of the conductive connecting sheet.

3. A high-voltage quick-connector welding process according to claim 1, characterized in that: The width of the second groove body is greater than the diameter of the welding wire.

4. A high-voltage quick-connector welding process according to claim 1, characterized in that: The welding equipment also includes a connecting piece feeding device, a first slotting device, a spring piece feeding device, a second slotting device, a first laser welding device and a second laser welding device which are sequentially arranged around the rotary feeding device in a circumferential direction; The first laser welding device and the second laser welding device have the same structure, both of which include a first laser for generating a first laser beam, a second laser for generating a second laser beam, and a wire feeder for conveying welding wire, wherein the wire feeder is located between the first laser and the second laser.

5. A high-voltage quick-connector welding process according to claim 4, characterized in that: The welding equipment also includes a base plate, and a rotary feeding device, a connecting piece feeding device, a first slotting device, a spring piece feeding device, a second slotting device, a first laser welding device and a second laser welding device are all fixedly mounted on the base plate.

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