Electric vehicle switch contact laser welding device

Abstract

The application discloses a kind of electric vehicle switch contact laser welding device, more particularly to electric vehicle processing technical field, including base and top frame, the top end side of the base is equipped with material setting mechanism, first vertical frame is fixedly installed in the side of material setting mechanism close to the bottom end of the top frame, the bottom end of the first vertical frame is fixedly installed with welding mechanism, the side of the base top end close to welding mechanism is equipped with transmission equipment, the side of the bottom end of the top frame away from the first vertical frame is fixedly installed with second vertical frame, the electric vehicle switch contact platform is positioned transmission by being equipped with material setting mechanism, cooperate and use welding mechanism to carry out laser welding and glue sealing protection to welding position, improve the waterproof, chemical corrosion resistance of electric vehicle switch contact platform and electrical wiring welding position, reduce electric vehicle switch contact platform and electrical wiring welding position damage, improve the use effect of subsequent entire electric vehicle switch.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle processing technology, specifically to a laser welding device for electric vehicle switch contacts. Background Technology

[0002] Electric vehicle switch contacts are the core conductive components in the electric vehicle switch assembly responsible for realizing the opening and closing of the circuit. They are the "execution terminal" of the switch function. They are mainly made of highly conductive materials (such as copper, silver alloy, gold-plated materials, etc.). Through the mechanical operation of the switch (such as pressing, rotating, tossing), they make contact or separate from the corresponding conductive components, thereby controlling the conduction and disconnection of the electric vehicle circuit, and ultimately determining the working status of components such as headlights, horn, motor power supply, and turn signals.

[0003] Electric vehicle switch contacts are often firmly welded to related components using soldering to form welded joints. However, the soldering process for electric vehicle switch contacts is mostly a single-station operation, requiring manual positioning, which makes it difficult to accurately control the position of the solder joints and results in low efficiency. Furthermore, the use of soldering for fixing can easily cause oxidation and detachment, thus affecting the normal use of the electric vehicle switch contacts. Therefore, we propose a laser welding device for electric vehicle switch contacts to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a laser welding device for electric vehicle switch contacts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser welding device for electric vehicle switch contacts, comprising a base and a top frame. A material fixing mechanism is provided on one side of the top of the base. A first longitudinal frame is fixedly installed on the bottom of the top frame near the material fixing mechanism. A welding mechanism is fixedly installed on the bottom of the first longitudinal frame. A transmission device is provided on the top of the base near the welding mechanism. A second longitudinal frame is fixedly installed on the bottom of the top frame away from the first longitudinal frame. A feeding mechanism is fixedly installed on the bottom of the second longitudinal frame. Auxiliary support platforms are provided on both sides of the end of the transmission device near the welding mechanism. The auxiliary support platforms are fixedly installed on the top of the base.

[0006] Preferably, the material setting mechanism includes a first linear electric rail, which is fixedly installed on one side of the top of the base. A connecting crossbeam is fixedly installed at the driving end of the first linear electric rail, and positioning components are fixedly installed at both ends of the connecting crossbeam.

[0007] Preferably, the positioning component includes a positioning base frame, which is fixedly installed at the end of the connecting crossbeam. Positioning grooves are provided at each of the four corners of the positioning base frame. Positioning longitudinal rods are slidably engaged in the positioning grooves. Electric vehicle switch contact platforms to be welded are movably engaged between multiple positioning longitudinal rods. Two limiting rings are fixedly sleeved in the middle of each positioning longitudinal rod, and the two limiting rings respectively contact the upper and lower surfaces of the positioning base frame. First bidirectional telescopic rods are provided on both sides of the bottom end of the positioning base frame. Mounting seats are fixedly installed on the outer sides of the first bidirectional telescopic rods, and the mounting seats are fixedly installed at the bottom end of the positioning base frame. Driving slide frames are fixedly installed on both driving ends of the first bidirectional telescopic rods. The bottoms of two positioning longitudinal rods on the same side are movably engaged in the corresponding driving slide frames.

[0008] Preferably, the welding mechanism includes a longitudinal frame, which is fixedly installed at the bottom of a first longitudinal frame. A lifting cylinder is fixedly installed in the longitudinal frame. An adjusting frame is provided at the bottom of the lifting cylinder. A first toothed plate is slidably mounted on the top of the adjusting frame, and a second toothed plate is slidably mounted on the bottom of the adjusting frame. A first mounting frame is fixedly installed at the outer end of the first toothed plate, and a second mounting frame is fixedly installed at the outer end of the second toothed plate. A welding component is fixedly installed on the first mounting frame, and an auxiliary cover frame is fixedly installed on the second mounting frame. A protective frame is provided at the top of the adjusting frame. A rotary cylinder is fixedly installed in the protective frame. A drive shaft is fixedly installed at the drive end of the rotary cylinder. The drive shaft is fixedly installed at the middle of the top of the adjusting frame. A protective top cover is fixedly installed at the top of the protective frame, and the drive end of the lifting cylinder is fixedly installed at the top of the protective top cover.

[0009] Preferably, the welded component includes a protective outer cylinder, the bottom end of which is integrally formed with an exhaust head, the protective outer cylinder is fixedly mounted on a first mounting frame, the top end of which is fixedly mounted with a sealing ring, the middle of which is fixedly mounted with a laser welding head, the top of which is integrally formed with a first head, the end of which is fixedly mounted with a first flexible hose, the end of which is fixedly mounted with a first tube, the outside of which is fixedly mounted with a first seat, and the first seat is fixedly mounted on the outside of the longitudinal frame of the mechanism.

[0010] Preferably, the top of the auxiliary frame is integrally formed with a second head, the end of the second head is fixedly installed with a second flexible hose, the end of the second flexible hose is fixedly installed with a second pipe, the outside of the second pipe is fixedly installed with a second seat, and the second seat is fixedly installed on the outside of the longitudinal frame of the mechanism.

[0011] Preferably, a drive gear is meshed between the first toothed plate and the second toothed plate, and a drive horizontal shaft is fixedly installed in the middle of the drive gear and the drive horizontal shaft is rotatably installed on the adjustable frame.

[0012] Preferably, a worm gear is fixedly installed on the outer end of the drive shaft, and a worm is meshed with the outer side of the worm gear. The worm is rotatably installed on the outer wall of the adjustable frame. A first motor is fixedly installed on the side of the outer wall of the adjustable frame near the worm. The drive end of the first motor and the shaft end of the worm are fixedly installed.

[0013] Preferably, the feeding mechanism includes a second linear electric rail, which is fixedly installed at the bottom end of the second longitudinal frame. A connecting bracket is fixedly installed at the driving end of the second linear electric rail. A guide crossbar is fixedly installed at the end of the connecting bracket. A translation slide is slidably installed at both ends of the guide crossbar. A clamping member is fixedly installed at the bottom end of each translation slide. A second bidirectional telescopic rod is fixedly installed at the end of the connecting bracket. The two driving ends of the second bidirectional telescopic rod are respectively fixedly installed on the translation slide.

[0014] Preferably, the clamping member includes two symmetrically distributed clamping side frames, one of which is fixedly installed at the bottom end of the corresponding translation slide, and a guide slide rod is fixedly installed at the top of the two clamping side frames. Two symmetrically distributed clamping frames are slidably engaged on the outer side of the guide slide rod. A connecting seat is fixedly installed in the middle of the two clamping side frames, and a third bidirectional telescopic rod is fixedly installed at the bottom of the connecting seat. The two driving ends of the third bidirectional telescopic rod are respectively fixedly installed with the clamping frames.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By setting up a material positioning mechanism to position and transmit the electric vehicle switch contact platform, and using a welding mechanism to perform laser welding and sealant protection on the welding positions, the waterproof and chemical corrosion resistance of the electric vehicle switch contact platform and electrical wiring welding positions is improved, reducing damage to the electric vehicle switch contact platform and electrical wiring welding positions, and improving the overall performance of the electric vehicle switch.

[0017] 2. By setting up a welding mechanism, a protective area can be formed at the laser welding position of the electric vehicle switch contact platform to prevent the weld from oxidizing too quickly and affecting the welding effect at the laser welding position of the electric vehicle switch contact platform.

[0018] 3. By setting up a welding mechanism, the distance between the welded parts and the auxiliary frame can be flexibly adjusted to adapt to subsequent welding processes with different spacing contacts, thereby improving the overall flexibility of the device.

[0019] 4. By setting up a feeding mechanism, the two ends of the electrical wire are clamped and positioned and transferred to the electric vehicle switch contact platform above the welding position of the two switch contacts, so as to perform stable laser welding on the two ends of the electrical wire and the welding position of the two switch contacts on the electric vehicle switch contact platform. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the material feeding mechanism in this invention.

[0023] Figure 3 This is a schematic diagram of the positioning component in this invention.

[0024] Figure 4 This is a schematic diagram of the welding mechanism in this invention.

[0025] Figure 5 This is a schematic diagram of the welding mechanism in this invention from another angle.

[0026] Figure 6 This is a schematic diagram of a portion of the structural connections of the welding mechanism in this invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle.

[0028] Figure 8 This is a schematic diagram of the structure of the welded component in this invention.

[0029] Figure 9 This is a schematic diagram of the structure of the auxiliary frame in this invention.

[0030] Figure 10 This is a schematic diagram of the feeding mechanism in this invention.

[0031] Figure 11 For the present invention Figure 10 Enlarged view of point B in the middle.

[0032] Figure 12 This is a schematic diagram of the clamping component in this invention.

[0033] In the diagram: 1. Base; 2. Top frame; 21. First longitudinal frame; 22. Second longitudinal frame; 3. Material positioning mechanism; 4. Welding mechanism; 5. Conveying equipment; 6. Feeding mechanism; 7. Auxiliary support platform; 31. First linear electric rail; 32. Connecting cross frame; 33. Positioning component; 331. Positioning bottom frame; 332. Positioning slide groove; 333. Positioning longitudinal rod; 334. Limiting clasp; 335. First bidirectional telescopic rod; 336. Mounting seat; 337. Drive slide frame; 41. Mechanism longitudinal frame; 42. Lifting cylinder; 43. Adjustable outer frame; 431. First toothed plate; 4311. First mounting frame; 432. Second toothed plate; 4321. Second mounting frame; 433. Drive gear; 4331. Drive horizontal shaft; 434. Worm gear; 435. Worm; 436. 44. First motor; 44. Welded component; 441. Protective outer cylinder; 4411. Exhaust head; 442. Sealing ring; 443. Laser welding head; 444. First head; 45. Auxiliary frame; 451. Second head; 46. Protective outer frame; 461. Rotary cylinder; 4611. Drive longitudinal shaft; 462. Protective top cover; 47. First hose; 471. First pipe; 472. First seat; 48. Second hose; 481. Second pipe; 482. Second seat; 61. Second linear electric rail; 62. Connecting bracket; 63. Guide crossbar; 631. Second bidirectional telescopic rod; 64. Translation slide; 65. Clamping component; 651. Clamping side frame; 652. Guide slide bar; 653. Clamping frame; 654. Connecting seat; 655. Third bidirectional telescopic rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example: Figure 1-12 As shown, the present invention provides a laser welding device for electric vehicle switch contacts, including a base 1 and a top frame 2. A material fixing mechanism 3 is provided on one side of the top of the base 1. A first longitudinal frame 21 is fixedly installed on the bottom of the top frame 2 near the material fixing mechanism 3. A welding mechanism 4 is fixedly installed on the bottom of the first longitudinal frame 21. A transmission device 5 is provided on the top of the base 1 near the welding mechanism 4. The transmission device 5 automatically transmits multiple electrical wires one by one to the position of the welding mechanism 4. A second longitudinal frame 22 is fixedly installed on the bottom of the top frame 2 away from the first longitudinal frame 21. A feeding mechanism 6 is fixedly installed on the bottom of the second longitudinal frame 22. Auxiliary support platforms 7 are provided on both sides of the end of the transmission device 5 near the welding mechanism 4. The auxiliary support platforms 7 are fixedly installed on the top of the base 1.

[0036] The material positioning mechanism 3 includes a first linear electric rail 31, which is fixedly installed on one side of the top of the base 1. A connecting crossbeam 32 is fixedly installed on the driving end of the first linear electric rail 31. Positioning components 33 are fixedly installed on both ends of the connecting crossbeam 32. By opening the first linear electric rail 31, the connecting crossbeam 32 is driven to move the two positioning components 33 to slide horizontally, so that one positioning component 33 moves to the bottom of the welding mechanism 4 and the other positioning component 33 moves to the side of the welding mechanism 4. This facilitates the unloading of the welded electric vehicle switch contact platform on the positioning component 33 and the random loading of the new electric vehicle switch contact platform, thereby improving the welding efficiency of the entire welding device for electric vehicle switch contacts.

[0037] The positioning component 33 includes a positioning base frame 331, which is fixedly installed at the end of the connecting crossbeam 32. Positioning grooves 332 are provided at the four corners of the positioning base frame 331. Positioning longitudinal rods 333 are slidably engaged in the positioning grooves 332. The electric vehicle switch contact platform to be welded is movably engaged between the multiple positioning longitudinal rods 333 to position the electric vehicle switch contact platform. Two limiting rings 334 are fixedly sleeved in the middle of the positioning longitudinal rods 333. The two limiting rings 334 are in contact with the upper and lower surfaces of the positioning base frame 331, respectively.

[0038] Both sides of the bottom end of the positioning base frame 331 are provided with first bidirectional telescopic rods 335. Mounting seats 336 are fixedly installed on the outer side of the first bidirectional telescopic rods 335. The mounting seats 336 are fixedly installed on the bottom end of the positioning base frame 331. Drive slide frames 337 are fixedly installed on both drive ends of the first bidirectional telescopic rods 335. The bottoms of the two positioning longitudinal rods 333 on the same side are movably engaged in the corresponding drive slide frames 337. By opening the first bidirectional telescopic rods 335, the two drive slide frames 337 on both sides slide towards each other, cooperating with the positioning longitudinal rods 333 in... The corresponding drive slide frame 337 slides, controlling multiple positioning rods 333 to slide towards each other in the corresponding positioning slide groove 332, positioning the electric vehicle switch contact platform, which facilitates the subsequent stable welding of the electric vehicle switch contact platform; conversely, by opening the first bidirectional telescopic rod 335, the two drive slide frames 337 on both sides slide in opposite directions, and the positioning rods 333 slide in the corresponding drive slide frame 337, controlling multiple positioning rods 333 to slide in opposite directions in the corresponding positioning slide groove 332, the electric vehicle switch contact platform loses its positioning.

[0039] The welding mechanism 4 includes a longitudinal frame 41, which is fixedly installed at the bottom end of the first longitudinal frame 21. A lifting cylinder 42 is fixedly installed in the longitudinal frame 41. An adjustable outer frame 43 is provided at the bottom end of the lifting cylinder 42. A first toothed plate 431 is slidably mounted on the top of the adjustable outer frame 43, and a second toothed plate 432 is slidably mounted on the bottom of the adjustable outer frame 43. A first mounting frame 4311 is fixedly installed on the outer end of the first toothed plate 431, and a second mounting frame 4321 is fixedly installed on the outer end of the second toothed plate 432. A welding component 44 is fixedly mounted on the first mounting frame 4311, and an auxiliary frame 45 is fixedly mounted on the second mounting frame 4321. The lifting component 44 and the auxiliary frame 45 are raised and lowered by opening the lifting cylinder 42.

[0040] The top of the adjustable outer frame 43 is provided with a protective outer frame 46. A rotary cylinder 461 is fixedly installed in the protective outer frame 46. A drive shaft 4611 is fixedly installed at the drive end of the rotary cylinder 461. The position of the drive shaft 4611 corresponds to the center position of the two contacts on the electric vehicle switch contact platform. The drive shaft 4611 is fixedly installed at the middle of the top of the adjustable outer frame 43. A protective top cover 462 is fixedly installed at the top of the protective outer frame 46. The drive end of the lifting cylinder 42 is fixedly installed at the top of the protective top cover 462. By opening the rotary cylinder 461, the welding part 44 and the auxiliary cover frame 45 are controlled to rotate, and the positions of the welding part 44 and the auxiliary cover frame 45 are changed.

[0041] The welded component 44 includes a protective outer cylinder 441, which is fixedly mounted on the first mounting frame 4311. An exhaust head 4411 is integrally formed at the bottom end of the protective outer cylinder 441. A sealing ring 442 is fixedly mounted at the top end of the protective outer cylinder 441, and a laser welding head 443 is fixedly mounted in the middle of the sealing ring 442. A first head 444 is integrally formed at the top of the protective outer cylinder 441. A first flexible hose 47 is fixedly mounted at the end of the first head 444, and a first tube 471 is fixedly mounted at the end of the first flexible hose 47. A first seat 472 is fixedly mounted on the outside of the first tube 471, and the first seat 472 is fixedly mounted on the outside of the mechanism's longitudinal frame 41. In use, the end of the first tube 471 is connected to the output port of the protective gas output system. When laser welding head 443 is used to perform laser welding on the electric vehicle switch contact platform and the laser welding position of the electrical wiring, the protective gas output system is turned on simultaneously. The protective gas is introduced into the protective outer cylinder 441 through the first tube 471, the first hose 47 and the first head 444, and is evenly discharged through the bottom exhaust head 4411. It is discharged at the laser welding position of the electric vehicle switch contact platform, forming a protective area at the laser welding position of the electric vehicle switch contact platform to prevent the weld from oxidizing too quickly and affecting the welding effect of the laser welding position of the electric vehicle switch contact platform.

[0042] The top of the auxiliary frame 45 is integrally formed with a second head 451. A second flexible tube 48 is fixedly installed at the end of the second head 451. A second pipe 481 is fixedly installed at the end of the second flexible tube 48. A second seat 482 is fixedly installed on the outside of the second pipe 481. The second seat 482 is fixedly installed on the outside of the longitudinal frame 41 of the mechanism. In use, the end of the second pipe 481 is connected to the output port of the epoxy resin output system. After the electric vehicle switch contact platform and the electrical wiring are automatically laser welded, the auxiliary frame 45 is moved above the welding position. The epoxy resin output system is turned on. The epoxy resin is introduced into the auxiliary frame 45 through the second pipe 481, the second flexible tube 48, and the second head 451, and discharged through the bottom end of the auxiliary frame 45. This seals and protects the welding position of the electric vehicle switch contact platform and the electrical wiring, improves the waterproof and chemical corrosion resistance of the welding position of the electric vehicle switch contact platform and the electrical wiring, reduces damage to the welding position of the electric vehicle switch contact platform and the electrical wiring, and improves the subsequent use effect of the entire electric vehicle switch.

[0043] A drive gear 433 meshes between the first toothed plate 431 and the second toothed plate 432. A drive horizontal shaft 4331 is fixedly mounted in the middle of the drive gear 433. The drive horizontal shaft 4331 is rotatably mounted on the adjustable frame 43. A worm gear 434 is fixedly mounted on the outer end of the drive horizontal shaft 4331. A worm 435 is meshed with the outer side of the worm gear 434. The worm 435 is rotatably mounted on the outer wall of the adjustable frame 43. A first motor 436 is fixedly mounted on the outer wall of the adjustable frame 43 near the worm 435. The drive end of the first motor 436 is fixedly mounted to the shaft end of the worm 435. The motor 436 drives the worm. The worm gear 435 drives the worm wheel 434 and the drive horizontal shaft 4331 to rotate, thereby controlling the drive gear 433 to rotate, which in turn drives the first toothed plate 431 and the second toothed plate 432 to move in opposite directions. Conversely, by turning on the first motor 436, the worm gear 435 drives the worm wheel 434 and the drive horizontal shaft 4331 to rotate in the opposite direction, thereby controlling the drive gear 433 to rotate in the opposite direction, which in turn drives the first toothed plate 431 and the second toothed plate 432 to move towards each other. This allows for flexible adjustment of the spacing between the welded part 44 and the auxiliary frame 45, adapting to subsequent welding processes with different spacing contacts, thereby improving the overall flexibility of the device.

[0044] The feeding mechanism 6 includes a second linear electric rail 61, which is fixedly installed at the bottom of the second longitudinal frame 22. A connecting bracket 62 is fixedly installed at the driving end of the second linear electric rail 61. A guide crossbar 63 is fixedly installed at the end of the connecting bracket 62. A translation slide 64 is slidably installed at both ends of the guide crossbar 63. A clamping member 65 is fixedly installed at the bottom end of the translation slide 64. A second bidirectional telescopic rod 631 is fixedly installed at the end of the connecting bracket 62. The two driving ends of the second bidirectional telescopic rod 631 are fixedly installed on the translation slide 64 respectively. By opening the second linear electric rail 61, the connecting bracket 62 is driven to move the two clamping members 65 to slide. By opening the second bidirectional telescopic rod 631, the two clamping members 65 are driven to move towards or away from each other, adjusting the distance between the two clamping members 65 to adapt to the clamping and positioning of different distance ends on the electrical wiring.

[0045] The clamping component 65 includes two symmetrically distributed clamping side frames 651. One clamping side frame 651 is fixedly installed at the bottom end of the corresponding translation slide 64. A guide slide rod 652 is fixedly installed on the top of the two clamping side frames 651. Two symmetrically distributed clamping frames 653 are slidably clamped on the outer side of the guide slide rod 652. A connecting seat 654 is fixedly installed in the middle of the two clamping side frames 651. A third bidirectional telescopic rod 655 is fixedly installed at the bottom of the connecting seat 654. The two driving ends of the third bidirectional telescopic rod 655 are fixedly installed with the clamping frames 653 respectively, so that the two ends of the electrical wire are moved between the two clamping frames 653 in the corresponding clamping component 65. The third bidirectional telescopic rod 655 is opened to drive the two clamping frames 653 to move towards each other, clamping and positioning the two ends of the electrical wire. This facilitates the subsequent movement of the two ends of the electrical wire to the welding position of the two switch contacts on the electric vehicle switch contact platform, so as to perform stable laser welding on the two ends of the electrical wire and the welding position of the two switch contacts on the electric vehicle switch contact platform.

[0046] Working principle: Connect the end of the first tube 471 to the output port of the protective gas output system, and connect the end of the second tube 481 to the output port of the epoxy resin output system.

[0047] The electric vehicle switch contact platform to be welded is placed between multiple positioning rods 333. By opening the first bidirectional telescopic rod 335, the two driving slide frames 337 on both sides are driven to slide towards each other. The positioning rods 333 slide in the corresponding driving slide frames 337, and the multiple positioning rods 333 are controlled to slide towards each other in the corresponding positioning slide grooves 332 to position the electric vehicle switch contact platform.

[0048] Subsequently, the first linear electric rail 31 drives the connecting crossbeam 32 to move the two positioning components 33 in a translational and sliding motion. This moves the electric vehicle switch contact platform below the welding mechanism 4, while the other positioning component 33 moves to one side of the welding mechanism 4. This allows the new electric vehicle switch contact platform to be immediately loaded and positioned on the other positioning component 33, facilitating subsequent laser welding of the new electric vehicle switch contact platform.

[0049] The transmission device 5 automatically transmits multiple electrical wires one by one to the welding mechanism 4. By opening the second linear rail 61, the connecting bracket 62 is driven to move the two clamping pieces 65 to the upper position of the end of the transmission device 5. By opening the second bidirectional telescopic rod 631, the two clamping pieces 65 are driven to move towards each other or away from each other, adjusting the distance between the two clamping pieces 65 to adapt to the clamping and positioning of the ends of the electrical wires with different distances. This moves the two ends of the electrical wires to the two clamping frames 653 in the corresponding clamping pieces 65. The third bidirectional telescopic rod 655 is opened to drive the two corresponding clamping frames 653 to move towards each other, clamping and positioning the two ends of the electrical wires. Then, the second linear rail 61 is opened again to drive the connecting bracket 62 to move the two clamping pieces 65 and the two ends of the electrical wires to the upper position of the welding position of the two switch contacts on the electric vehicle switch contact platform.

[0050] Subsequently, by activating the first motor 436, the worm gear 435 is driven to rotate, which in turn drives the worm wheel 434 and the drive horizontal shaft 4331 to rotate, thereby controlling the drive gear 433 to rotate, which in turn drives the first toothed plate 431 and the second toothed plate 432 to move in opposite directions. Conversely, by activating the first motor 436, the worm gear 435 is driven to rotate in the opposite direction, which in turn controls the drive gear 433 to rotate in the opposite direction, which in turn drives the first toothed plate 431 and the second toothed plate 432 to move towards each other. This allows for flexible adjustment of the spacing between the welded part 44 and the auxiliary frame 45, adapting to the subsequent welding processing of contacts with different spacings, until the positions of the welded part 44 and the auxiliary frame 45 are adjusted, so that the welded part 44 and the auxiliary frame 45 correspond one-to-one with the welding positions of the two switch contacts on the electric vehicle switch contact platform.

[0051] Subsequently, the lifting cylinder 42 is activated to control the welding parts 44 and the auxiliary frame 45 to descend, so that the laser welding head 443 is lowered to a suitable height. The laser welding head 443 is used to perform laser welding on the electric vehicle switch contact platform and the laser welding position of the electrical wiring. At the same time, the protective gas output system is activated. The protective gas is introduced into the protective outer cylinder 441 through the first pipe 471, the first hose 47 and the first head 444, and is evenly discharged through the bottom exhaust head 4411. It is discharged at the laser welding position of the electric vehicle switch contact platform, forming a protective area at the laser welding position of the electric vehicle switch contact platform to prevent the weld from oxidizing too quickly and affecting the welding effect of the laser welding position of the electric vehicle switch contact platform.

[0052] After laser welding is completed at one of the switch contact welding positions, the welding part 44 and the auxiliary frame 45 are moved upward. Then, the rotary cylinder 461 is activated to control the welding part 44 and the auxiliary frame 45 to rotate and switch their positions. This allows the laser welding head 443 to move to another switch contact welding position for laser welding. At the same time, the auxiliary frame 45 corresponds to the previous switch contact welding position. Then, the epoxy resin output system is activated. The epoxy resin is introduced into the auxiliary frame 45 through the second pipe 481, the second hose 48, and the second head 451, and discharged through the bottom of the auxiliary frame 45. This seals and protects the electric vehicle switch contact platform and the electrical wiring welding position, improving the waterproof and chemical corrosion resistance of the electric vehicle switch contact platform and the electrical wiring welding position.

[0053] After the laser welding of another switch contact welding position is completed, the welding part 44 and the auxiliary frame 45 are moved up again and the welding part 44 and the auxiliary frame 45 are reset in the opposite direction. The auxiliary frame 45 is used to seal and protect the welding position of the other switch contact.

[0054] After all the welding positions of the two switch contacts are welded and sealed with glue, move the welded parts 44 and the auxiliary frame 45 back to their original positions and loosen the positioning of the electrical wiring.

[0055] Subsequently, the first linear electric rail 31 is activated again to drive the connecting crossbeam 32 to move the two positioning parts 33 to slide horizontally, so that the positioning part 33 of the new electric vehicle switch contact platform is moved to the bottom of the welding mechanism 4 for subsequent welding processing. After welding, the electric vehicle switch contact platform and the electrical wiring are moved to the side of the welding mechanism 4, which facilitates the unloading of the electric vehicle switch contact platform after welding on the positioning part 33. The auxiliary support platform 7 provides auxiliary support for the electrical wiring after welding.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser welding device for electric vehicle switch contacts, comprising a base (1) and a top frame (2), characterized in that: A material fixing mechanism (3) is provided on one side of the top of the base (1). A first longitudinal frame (21) is fixedly installed on the side of the bottom of the top frame (2) near the material fixing mechanism (3). A welding mechanism (4) is fixedly installed on the bottom of the first longitudinal frame (21). A transmission device (5) is provided on the side of the top of the base (1) near the welding mechanism (4). A second longitudinal frame (22) is fixedly installed on the side of the bottom of the top frame (2) away from the first longitudinal frame (21). A feeding mechanism (6) is fixedly installed on the bottom of the second longitudinal frame (22). Auxiliary support platforms (7) are provided on both sides of the end of the transmission device (5) near the welding mechanism (4). The auxiliary support platforms (7) are fixedly installed on the top of the base (1). The welding mechanism (4) includes a longitudinal frame (41), which is fixedly installed at the bottom end of a first longitudinal frame (21). A lifting cylinder (42) is fixedly installed in the longitudinal frame (41). An adjusting frame (43) is provided at the bottom end of the lifting cylinder (42). A first toothed plate (431) is slidably mounted on the top of the adjusting frame (43), and a second toothed plate (432) is slidably mounted on the bottom of the adjusting frame (43). A first mounting frame (4311) is fixedly mounted on the outer end of the first toothed plate (431), and a second mounting frame (4321) is fixedly mounted on the outer end of the second toothed plate (432). A welded part (44) is fixedly installed on the frame (4311), and an auxiliary cover frame (45) is fixedly installed on the second mounting frame (4321). A protective outer frame (46) is provided at the top of the adjustable outer frame (43). A rotary cylinder (461) is fixedly installed in the protective outer frame (46). A drive shaft (4611) is fixedly installed at the drive end of the rotary cylinder (461). The drive shaft (4611) is fixedly installed at the middle of the top of the adjustable outer frame (43). A protective top cover (462) is fixedly installed at the top of the protective outer frame (46). The drive end of the lifting cylinder (42) is fixedly installed at the top of the protective top cover (462).

2. The laser welding device for electric vehicle switch contacts according to claim 1, characterized in that: The material setting mechanism (3) includes a first linear electric rail (31), which is fixedly installed on one side of the top of the base (1). A connecting crossbeam (32) is fixedly installed at the driving end of the first linear electric rail (31), and positioning parts (33) are fixedly installed at both ends of the connecting crossbeam (32).

3. The laser welding device for electric vehicle switch contacts according to claim 2, characterized in that: The positioning component (33) includes a positioning base frame (331), which is fixedly installed at the end of the connecting crossbeam (32). Positioning grooves (332) are provided at each of the four corners of the positioning base frame (331). Positioning longitudinal rods (333) are slidably engaged in the positioning grooves (332). Electric vehicle switch contact platforms to be welded are movably engaged between multiple positioning longitudinal rods (333). Two limiting rings (334) are fixedly sleeved in the middle of each positioning longitudinal rod (333). The first bidirectional telescopic rod (335) is provided on both sides of the bottom end of the positioning base frame (331). The first bidirectional telescopic rod (336) is fixedly installed on the outer side of the first bidirectional telescopic rod (335). The mounting base (336) is fixedly installed at the bottom end of the positioning base frame (331). The two driving ends of the first bidirectional telescopic rod (335) are fixedly installed with driving slide frames (337). The bottom of the two positioning vertical rods (333) on the same side is movably engaged in the corresponding driving slide frames (337).

4. The laser welding device for electric vehicle switch contacts according to claim 1, characterized in that: The welded component (44) includes a protective outer cylinder (441), with an exhaust head (4411) integrally formed at the bottom end of the protective outer cylinder (441). The protective outer cylinder (441) is fixedly installed on the first mounting frame (4311). A sealing ring (442) is fixedly installed at the top end of the protective outer cylinder (441). A laser welding head (443) is fixedly installed in the middle of the sealing ring (442). A first head (444) is integrally formed at the top of the protective outer cylinder (441). A first flexible hose (47) is fixedly installed at the end of the first head (444). A first tube (471) is fixedly installed at the end of the first flexible hose (47). A first seat (472) is fixedly installed on the outside of the first tube (471). The first seat (472) is fixedly installed on the outside of the mechanism longitudinal frame (41).

5. The laser welding device for electric vehicle switch contacts according to claim 1, characterized in that: The top of the auxiliary frame (45) is integrally formed with a second head (451), and a second hose (48) is fixedly installed at the end of the second head (451). A second pipe (481) is fixedly installed at the end of the second hose (48), and a second seat (482) is fixedly installed on the outside of the second pipe (481). The second seat (482) is fixedly installed on the outside of the longitudinal frame (41) of the mechanism.

6. The laser welding device for electric vehicle switch contacts according to claim 1, characterized in that: A drive gear (433) is meshed between the first toothed plate (431) and the second toothed plate (432). The drive gear (433) and the drive horizontal shaft (4331) are fixedly installed in the middle. The drive horizontal shaft (4331) is rotatably installed on the adjustable frame (43).

7. The laser welding device for electric vehicle switch contacts according to claim 6, characterized in that: A worm gear (434) is fixedly installed on the outer end of the drive shaft (4331). A worm (435) is meshed with the outer side of the worm gear (434). The worm (435) is rotatably installed on the outer wall of the adjustable frame (43). A first motor (436) is fixedly installed on the side of the outer wall of the adjustable frame (43) near the worm (435). The drive end of the first motor (436) and the shaft end of the worm (435) are fixedly installed.

8. The laser welding device for electric vehicle switch contacts according to claim 1, characterized in that: The feeding mechanism (6) includes a second linear electric rail (61), which is fixedly installed at the bottom end of the second longitudinal frame (22). A connecting bracket (62) is fixedly installed at the driving end of the second linear electric rail (61). A guide crossbar (63) is fixedly installed at the end of the connecting bracket (62). A translation slide (64) is slidably installed at both ends of the guide crossbar (63). A clamping member (65) is fixedly installed at the bottom end of the translation slide (64). A second bidirectional telescopic rod (631) is fixedly installed at the end of the connecting bracket (62). The two driving ends of the second bidirectional telescopic rod (631) are fixedly installed on the translation slide (64) respectively.

9. The laser welding device for electric vehicle switch contacts according to claim 8, characterized in that: The clamping member (65) includes two symmetrically distributed clamping side frames (651), one of which is fixedly installed at the bottom end of the corresponding translation slide (64). A guide slide rod (652) is fixedly installed on the top of the two clamping side frames (651). Two symmetrically distributed clamping frames (653) are slidably attached to the outer side of the guide slide rod (652). A connecting seat (654) is fixedly installed in the middle of the two clamping side frames (651). A third bidirectional telescopic rod (655) is fixedly installed at the bottom of the connecting seat (654). The two driving ends of the third bidirectional telescopic rod (655) are fixedly installed with the clamping frames (653) respectively.

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