Welding device for electrical equipment manufacturing

Abstract

The invention relates to the technical field of welding devices, in particular to an electrical equipment manufacturing welding device which comprises a base, four first electric telescopic rods are mounted at the upper end of the base, output shafts of the four first electric telescopic rods are jointly provided with a shielding cover, and a mechanical arm is mounted at the position, close to one side, of the upper end of the base. Through cooperation of three sets of connecting rods, a second electric telescopic rod and a third electric telescopic rod, the levelness of an arc-shaped mounting plate can be adjusted in real time, the curved surface error of an arc-shaped guide rail and a D-shaped metal sleeve is smaller than or equal to 0.05 mm, and through cooperation of negative pressure adsorption of a vacuum suction cup, the arc-shaped metal sleeve can be welded to the arc-shaped guide rail in real time. Stress-free accurate positioning of the cable interface sleeve is achieved, the outer wall of the sleeve is pre-cleaned through the cleaning cylinder by means of the spraying assembly, meanwhile, spraying of an anti-splashing agent is controlled through the electromagnetic valve, a ceramic isolation film with the thickness of 0.1-0.2 mm is formed after the anti-splashing agent is smeared through the cleaning cylinder, more than 98% of welding splashing can be blocked, and slag is prevented from being adhered to the surface of the sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, in particular to a welding device for manufacturing electrical equipment. Background Art

[0002] In the electric vehicle sector, the onboard charger (OBC) is a key component connecting the power grid and the power battery, and its reliability directly impacts vehicle safety. Welding the OBC's shielding cover to the D-shaped metal cable connector sleeve is a core manufacturing process, requiring high conductivity, electromagnetic shielding, and vibration resistance. However, existing welding technology presents the following challenges when addressing the unique demands of electric vehicle OBCs.

[0003] The D-shaped metal cable connector sleeve, serving as the connector for the high-voltage wiring harness of an on-board charger, has an asymmetric D-shaped cross-section. Conventional welding equipment uses a rigid clamping method, which cannot precisely position the D-shaped surface. Welding deviations often exceed 0.3mm, increasing contact resistance and posing a risk of overheating. Furthermore, manual grinding is required to remove burrs from the sleeve cutout, which is inefficient and results in residual burrs ≥0.1mm in height, which not only reduces weld penetration but also can pierce the insulation layer. The on-board charger shield must form a continuous weld seal with the D-shaped sleeve. In existing welding processes, molten metal splashes easily adhere to the inner wall of the shield, compromising the integrity of the shielding layer. Furthermore, uneven application of conventional anti-spatter agents can lead to localized shielding failure. Furthermore, residual metal particles around the weld seam after welding can cause high-voltage breakdown. During driving, on-board chargers are subject to continuous vibrations of 30-50Hz, placing stringent demands on weld strength. Existing technologies rely on visual inspection or offline flaw detection, which cannot identify subtle thermal deformation and lack of fusion defects in real time, resulting in weld failure rates as high as 5%. Furthermore, they cannot quantitatively assess the vibration resistance of the weld. Furthermore, the traditional percussion cleaning process is prone to secondary damage, affecting product consistency. Existing welding devices are mostly general-purpose devices that lack dedicated welding path planning for the arc trajectory of the D-shaped sleeve, making it impossible to achieve dynamic alignment between the welding head and the sleeve's curved surface. Given the compact design of electric vehicle on-board chargers, traditional equipment struggles to meet the three-dimensional welding requirements of the shielding cover and sleeve. Therefore, we propose a welding device for electrical equipment manufacturing. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention provides a welding device for manufacturing electrical equipment.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a welding device for manufacturing electrical equipment, including a base, four groups of first electric telescopic rods are installed on the upper end of the base, and the output shafts of the four groups of first electric telescopic rods are commonly provided with a shielding cover, a robotic arm is installed near one side of the upper end of the base, the output shaft of the robotic arm is provided with a positioning mechanism, the lower end of the positioning mechanism is provided with a welding mechanism, and a welding head is installed on the inner side of the welding mechanism.

[0006] Preferably, the positioning mechanism includes a fixing assembly for positioning the cable interface sleeve, and the positioning mechanism also includes a chamfering assembly for chamfering the cable interface sleeve.

[0007] Preferably, the fixing assembly includes three groups of connecting rods, the lower ends of the three groups of connecting rods are rotatably connected to an arc-shaped mounting plate, a second electric telescopic rod is installed on the inner side of the connecting rod, the output shaft of the second electric telescopic rod is fixedly connected to the third electric telescopic rod through a sleeve, one end of the three groups of third electric telescopic rods are fixedly connected to the arc-shaped mounting plate, the output shafts of the third electric telescopic rods are respectively fixedly connected to arc-shaped guide rails, a sliding groove is provided on the other side of the arc-shaped guide rails, a fourth electric telescopic rod is installed at the lower end of the arc-shaped mounting plate, the output shaft of the fourth electric telescopic rod is provided with a vacuum suction cup, and the suction cups of the three groups of vacuum suction cups are commonly provided with a cable interface sleeve.

[0008] Preferably, the upper end of the arc guide rail is slidably connected to a first bracket, the inner side of the first bracket is fixedly connected to a T-shaped slider, the T-shaped slider is slidably connected to the inner side of the slide groove of the arc guide rail, the inner side of the T-shaped slider is rotatably connected to the first gear through a rotating shaft, one side of the first bracket is fixedly connected to the second bracket, and the other side of the second bracket is installed with a first motor, the output shaft of the first motor passes through the second bracket, and the output shaft of the first motor is fixedly connected to the first gear.

[0009] Preferably, the chamfering assembly includes two groups of symmetrical second gears, the inner sides of the second gears are fixedly connected to the output shaft of the first motor, the outer sides of the second gears are meshed with a synchronous belt, the inner side of the synchronous belt is meshed with a third gear, and the inner sides of the two groups of third gears are both provided with symmetrical fifth electric telescopic rods, the outer shell of the fifth electric telescopic rod is rotatably connected to the second bracket, the output shaft of the fifth electric telescopic rod is fixedly connected to a universal coupling, and the other end of the universal coupling is fixedly connected to a frosting plate.

[0010] Preferably, the welding mechanism includes a spray assembly for cleaning the cable interface sleeve, and the welding mechanism also includes a welding assembly for processing the weld.

[0011] Preferably, the spray assembly includes a connecting plate fixedly connected to the first bracket, the lower end of the connecting plate is fixedly connected to the anti-splash agent storage tank through a connecting rod, the upper end of the anti-splash agent storage tank is rotatably connected to the sixth gear, the inner side of the anti-splash agent storage tank is rotatably connected to the normal temperature stirring rod, the upper end of the normal temperature stirring rod is fixedly connected to the sixth gear, the lower end of the anti-splash agent storage tank is fixedly connected to the third bracket, the inner side of the third bracket is fixedly connected to the welding head, the lower end of the third bracket is fixedly connected to the fourth bracket, the outer side of the anti-splash agent storage tank A solenoid valve is installed near the upper end, and the input port of the solenoid valve is provided with a hose. The output port of the solenoid valve is installed with multiple groups of spray heads through a pipeline. The outer side of the anti-splash agent storage tank is rotatably connected to a fourth gear near the lower end. The upper end of the fourth gear is fixedly connected to multiple groups of fixed rotating shafts, and the upper end of the fixed rotating shaft is slidably connected to the inner side of the connecting plate. The outer side of the fixed rotating shaft is fixedly connected to a cleaning cylinder, and the outer side of one of the multiple groups of fixed rotating shafts is fixedly connected to a fifth gear, and the outer side of the fifth gear is meshed with the sixth gear.

[0012] Preferably, a second motor is installed on one side of the third bracket, and two groups of symmetrical seventh gears are provided on the inner side of the third bracket. The two groups of seventh gears are meshed with the fourth gear. The output shaft of the second motor is fixedly connected to one of the two groups of seventh gears, and the inner side of the other group of seventh gears in the two groups of seventh gears is rotatably connected to the welding head. One end of the group of seventh gears in the two groups of seventh gears close to the welding head is fixedly connected to a carbon fiber brush.

[0013] Preferably, the welding assembly includes an eccentric plate fixedly connected to the output shaft of the second motor, the other side of the eccentric plate is fixedly connected to a connecting shaft, the outer side of the connecting shaft is rotatably connected to a U-shaped slide rod, the outer side of the U-shaped slide rod is slidably connected to a limit frame, one side of the limit frame is rotatably connected to the third bracket through a rotating shaft, the other side of the limit frame is rotatably connected to a hexagonal rod through a rotating shaft, the six groups of fulcrums of the hexagonal rod are fixedly connected to the first electromagnetic block, and the outer side of the first electromagnetic block is movably connected to the groove of the U-shaped slide rod.

[0014] Preferably, the welding assembly also includes a fixed rod fixedly connected to the fourth bracket, the inner side of the fixed rod is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to the second electromagnetic block, the outer side of the sliding rod is fixedly connected to a limiting plate, a spring is provided on the outer side of the sliding rod, one end of the spring is fixedly connected to the fixed rod, the other end of the spring is fixedly connected to the sliding rod, the other end of the sliding rod is fixedly connected to a pressure plate, a sensor is provided on the inner side of the pressure plate, and one side of the pressure plate is rotatably connected to a cleaning rod.

[0015] Compared with the prior art, the present invention provides a welding device for manufacturing electrical equipment, which has the following beneficial effects:

[0016] 1. Through the cooperation of three sets of connecting rods and the second and third electric telescopic rods, the horizontality of the arc-shaped mounting plate can be adjusted in real time, so that the surface error between the arc-shaped guide rail and the D-shaped metal sleeve is ≤0.05mm. Combined with the negative pressure adsorption of the vacuum suction cup, stress-free and precise positioning of the cable interface sleeve is achieved, solving the problem of sleeve deformation caused by rigid clamping in the existing technology. The angle of the grinding plate is adjusted through the chamfering assembly through the universal coupling so that it always fits the sleeve cut. Combined with the rotational motion driven by the first motor, the burr height of the cut can be controlled below 0.02mm, providing a flat interface for welding. Compared with traditional manual grinding, the efficiency is improved and the consistency is significantly improved.

[0017] 2. The outer wall of the sleeve is pre-cleaned through the cleaning cylinder by the spraying component, and the solenoid valve controls the spraying of the anti-splash agent. After being applied by the cleaning cylinder, a 0.1-0.2mm thick ceramic isolation film is formed, which can block more than 98% of welding spatter and prevent slag from adhering to the sleeve surface, solving the short circuit risk and subsequent cleaning problems caused by spatter in the existing technology. The carbon fiber brush rotates synchronously with the welding head to clean impurities around the weld in real time. The meshing transmission of the fourth gear and the seventh gear ensures that the cleaning coverage rate reaches 100%. Compared with traditional manual cleaning after welding, the efficiency is improved and impurities are prevented from affecting the welding strength.

[0018] 3. The welding assembly is linked with the eccentric plate and the U-shaped slide bar, so that the pressure plate strikes the weld. Combined with the sensor to detect vibration feedback in real time, it can identify thermal deformation and unfusion defects of ≤0.1mm, with a detection accuracy of ≥99%, replacing traditional visual inspection to achieve quantitative evaluation of welding quality. The cleaning rod moves with the sliding rod to push the particles dropped by the strike into the fourth bracket to avoid impurity accumulation affecting subsequent processes. Combined with the spring reset design, a "detection-cleaning" closed loop is formed, which improves the efficiency of post-weld processing and meets the continuous operation requirements of the automated production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the vehicle charger shielding cover and the side wall cable interface of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall structure of the positioning mechanism and welding mechanism of the present invention;

[0023] Figure 5This is an enlarged schematic cross-sectional view of the positioning mechanism of the present invention. Figure 1 ;

[0024] Figure 6 This is an enlarged schematic cross-sectional view of the positioning mechanism of the present invention. Figure 2 ;

[0025] Figure 7 This is a schematic diagram of the overall structure of the welding mechanism of the present invention;

[0026] Figure 8 It is a schematic cross-sectional view of the overall structure of the welding mechanism of the present invention;

[0027] Figure 9 This is an enlarged schematic cross-sectional view of the spray assembly of the present invention. Figure 1 ;

[0028] Figure 10 This is an enlarged schematic cross-sectional view of the spray assembly of the present invention. Figure 2 ;

[0029] Figure 11 The cross-sectional view of the overall structure of the welding assembly of the present invention is shown as follows: Figure 1 ;

[0030] Figure 12 The cross-sectional view of the overall structure of the welding assembly of the present invention is shown as follows: Figure 2 .

[0031] In the figure: 1. base; 2. first electric telescopic rod; 3. robotic arm; 4. positioning mechanism; 41. fixing assembly; 411. connecting rod; 412. arc-shaped mounting plate; 413. second electric telescopic rod; 414. third electric telescopic rod; 415. arc-shaped guide rail; 416. fourth electric telescopic rod; 417. vacuum suction cup; 418. first bracket; 419. T-shaped slider; 4110. first gear; 4111. second bracket; 4112. first motor; 42. chamfering assembly; 421. second gear; 422. synchronous belt; 423. third gear; 424. fifth electric telescopic rod; 425. universal joint; 426. frosting plate; 5. welding mechanism; 51. spraying assembly; 511. connecting plate; 512. anti-splash agent Storage tank; 513, normal temperature stirring rod; 514, third bracket; 515, fourth gear; 516, fixed shaft; 517, cleaning cylinder; 518, fifth gear; 519, sixth gear; 5110, solenoid valve; 5111, spray head; 5112, second motor; 5113, seventh gear; 5114, carbon fiber brush; 5115, fourth bracket; 52, welding assembly; 521, eccentric plate; 522, connecting shaft; 523, U-shaped slide bar; 524, limit frame; 525, hexagonal rod; 526, first electromagnetic block; 527, fixed rod; 528, slide bar; 529, second electromagnetic block; 5210, spring; 5211, pressure plate; 5212, cleaning rod; 6, vehicle charger shielding cover; 7, cable interface sleeve. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] The following electrical components are all electrically connected through the external PLC controller.

[0034] See also Figures 1-12 A welding device for manufacturing electrical equipment includes a base 1, four groups of first electric telescopic rods 2 are installed on the upper end of the base 1, and the output shafts of the four groups of first electric telescopic rods 2 are commonly provided with a shielding cover. A mechanical arm 3 is installed near one side of the upper end of the base 1, and the output shaft of the mechanical arm 3 is provided with a positioning mechanism 4. The lower end of the positioning mechanism 4 is provided with a welding mechanism 5, and a welding head is installed on the inner side of the welding mechanism 5.

[0035] In this embodiment, the positioning mechanism 4 includes a fixing component 41 for positioning the cable interface sleeve, and the positioning mechanism 4 also includes a chamfering component 42 for chamfering the cable interface sleeve.

[0036] Specifically, the positioning mechanism 4 achieves the clamping and positioning of the cable interface sleeve through the fixing component 41, and cooperates with the chamfering component 42 to complete the burr grinding of the sleeve cut, providing a flat interface surface for subsequent welding.

[0037] In this embodiment, the fixing assembly 41 includes three groups of connecting rods 411, and the lower ends of the three groups of connecting rods 411 are rotatably connected to the arc-shaped mounting plate 412. A second electric telescopic rod 413 is installed on the inner side of the connecting rod 411. The output shaft of the second electric telescopic rod 413 is fixedly connected to the third electric telescopic rod 414 through a sleeve. One end of the three groups of third electric telescopic rods 414 are fixedly connected to the arc-shaped mounting plate 412, and the output shafts of the third electric telescopic rods 414 are respectively fixedly connected to the arc-shaped guide rails 415. A sliding groove is provided on the other side of the arc-shaped guide rails 415. A fourth electric telescopic rod 416 is installed at the lower end of the arc-shaped mounting plate 412. The output shaft of the fourth electric telescopic rod 416 is provided with a vacuum suction cup 417, and the suction cups of the three groups of vacuum suction cups 417 are commonly provided with a cable interface sleeve.

[0038] Specifically, three sets of connecting rods 411 cooperate with the second electric telescopic rod 413 and the third electric telescopic rod 414 to adjust the horizontality of the arc-shaped mounting plate 412 so that the arc-shaped guide rail 415 is aligned above the cable interface sleeve; the three sets of third electric telescopic rods 414 drive the arc-shaped guide rail 415 toward the sleeve to form a complete track; the fourth electric telescopic rod 416 drives the vacuum suction cup 417 to clamp the sleeve. During welding, the telescopic rod can be moved to avoid the high-temperature area. The cable interface sleeve on the side wall of the shielding cover is a D-shaped metal sleeve.

[0039] In this embodiment, the upper end of the arc guide rail 415 is slidably connected to the first bracket 418, and the inner side of the first bracket 418 is fixedly connected to the T-shaped slider 419, which is slidably connected to the inner side of the slide groove of the arc guide rail 415. The inner side of the T-shaped slider 419 is rotatably connected to the first gear 4110 through a rotating shaft. One side of the first bracket 418 is fixedly connected to the second bracket 4111, and the other side of the second bracket 4111 is equipped with a first motor 4112. The output shaft of the first motor 4112 passes through the second bracket 4111, and the output shaft of the first motor 4112 is fixedly connected to the first gear 4110.

[0040] Specifically, the first motor 4112 drives the first gear 4110 to rotate, and through the engagement of the T-shaped slider 419 with the sliding groove of the arc guide rail 415, drives the first bracket 418 to move along the track, and then drives the welding head to move along the outer wall of the cable interface sleeve to complete the welding; the first bracket 418 drives the second bracket 4111 and the chamfering assembly 42 and the spraying assembly 51 to move, realizing multi-process collaborative operation.

[0041] In this embodiment, the chamfering assembly 42 includes two groups of symmetrical second gears 421, the inner side of the second gear 421 is fixedly connected to the output shaft of the first motor 4112, the outer side of the second gear 421 is meshed with a synchronous belt 422, the inner side of the synchronous belt 422 is meshed with a third gear 423, and the inner sides of the two groups of third gears 423 are both provided with symmetrical fifth electric telescopic rods 424, the outer shell of the fifth electric telescopic rod 424 is rotatably connected to the second bracket 4111, the output shaft of the fifth electric telescopic rod 424 is fixedly connected to a universal coupling 425, and the other end of the universal coupling 425 is fixedly connected to a frosting plate 426.

[0042] Specifically, the first motor 4112 drives the second gear 421 to rotate through the synchronous belt 422, thereby driving the third gear 423 to rotate, and then driving the fifth electric telescopic rod 424 to rotate; the fifth electric telescopic rod 424 adjusts the angle of the frosting plate 426 through the universal coupling 425 so that it always fits the incision of the cable interface sleeve to complete the burr grinding.

[0043] In this embodiment, the welding mechanism 5 includes a spray assembly 51 for cleaning the cable interface sleeve, and the welding mechanism 5 also includes a welding assembly 52 for processing the weld.

[0044] Specifically, the spraying component 51 cleans the sleeve surface and sprays anti-spatter agent before welding, and the welding component 52 processes the weld after welding, cleans particles and detects thermal deformation. The two work together to improve welding quality.

[0045] In this embodiment, the spraying assembly 51 includes a connecting plate 511 fixedly connected to the first bracket 418, the lower end of the connecting plate 511 is fixedly connected to the anti-splash agent storage tank 512 through a connecting rod, the upper end of the anti-splash agent storage tank 512 is rotatably connected to the sixth gear 519, the inner side of the anti-splash agent storage tank 512 is rotatably connected to the normal temperature stirring rod 513, the upper end of the normal temperature stirring rod 513 is fixedly connected to the sixth gear 519, the lower end of the anti-splash agent storage tank 512 is fixedly connected to the third bracket 514, the inner side of the third bracket 514 is fixedly connected to the welding head, the lower end of the third bracket 514 is fixedly connected to the fourth bracket 5115, the outer side of the anti-splash agent storage tank 512 is close to An electromagnetic valve 5110 is installed at the upper end, and a hose is provided at the input port of the electromagnetic valve 5110. A plurality of spray heads 5111 are installed at the output port of the electromagnetic valve 5110 through a pipeline. The outer side of the anti-splash agent storage tank 512 is rotatably connected near the lower end. The upper end of the fourth gear 515 is fixedly connected to a plurality of fixed rotating shafts 516. The upper end of the fixed rotating shaft 516 is slidably connected to the inner side of the connecting plate 511. A cleaning cylinder 517 is fixedly connected to the outer side of the fixed rotating shaft 516. A fifth gear 518 is fixedly connected to the outer side of one of the plurality of fixed rotating shafts 516. The outer side of the fifth gear 518 is meshed with the sixth gear 519.

[0046] Specifically, the first bracket 418 drives the connecting plate 511 to move, so that the anti-splash agent storage tank 512, the third bracket 514 and the welding head move synchronously; the fourth gear 515 drives the fixed rotating shaft 516 to rotate, driving the cleaning cylinder 517 to clean the outer wall of the sleeve, and at the same time drives the normal temperature stirring rod 513 to stir the anti-splash agent through the fifth gear 518 and the sixth gear 519; the solenoid valve 5110 controls the anti-splash agent to be sprayed to the outer wall of the sleeve through the spray head 5111, and the cleaning cylinder 517 evenly applies it to form a ceramic film to isolate the molten metal.

[0047] In this embodiment, a second motor 5112 is installed on one side of the third bracket 514, and two groups of symmetrical seventh gears 5113 are provided on the inner side of the third bracket 514. The two groups of seventh gears 5113 are meshed and connected with the fourth gear 515. The output shaft of the second motor 5112 is fixedly connected to one of the two groups of seventh gears 5113. The inner side of the other group of seventh gears 5113 in the two groups of seventh gears 5113 is rotatably connected to the welding head. One end of the group of seventh gears 5113 close to the welding head in the two groups of seventh gears 5113 is fixedly connected to a carbon fiber brush 5114.

[0048] Specifically, the second motor 5112 drives a group of seventh gears 5113 to rotate, and drives another group of seventh gears 5113 to rotate in the opposite direction by engaging the fourth gear 515; the rotating seventh gears 5113 drive the carbon fiber brush 5114 to rotate around the welding head, cleaning impurities around the weld, and at the same time driving the welding head to rotate to adjust the welding angle.

[0049] In this embodiment, the welding assembly 52 includes an eccentric plate 521 fixedly connected to the output shaft of the second motor 5112, and the other side of the eccentric plate 521 is fixedly connected to the connecting shaft 522, the outer side of the connecting shaft 522 is rotatably connected to the U-shaped slide bar 523, the outer side of the U-shaped slide bar 523 is slidably connected to the limit frame 524, one side of the limit frame 524 is rotatably connected to the third bracket 514 through a rotating shaft, and the other side of the limit frame 524 is rotatably connected to the hexagonal rod 525 through a rotating shaft, and the six groups of fulcrums of the hexagonal rod 525 are all fixedly connected to the first electromagnetic block 526, and the outer side of the first electromagnetic block 526 is movably connected to the groove of the U-shaped slide bar 523.

[0050] Specifically, the second motor 5112 drives the eccentric plate 521 to rotate, and drives the U-shaped slide bar 523 to move up and down periodically in the limit frame 524 through the connecting shaft 522; when the U-shaped slide bar 523 moves, it drives the hexagonal rod 525 to rotate through the cooperation with the first electromagnetic block 526 through the groove, so that the first electromagnetic block 526 periodically approaches or moves away from the second electromagnetic block 529.

[0051] In this embodiment, the welding assembly 52 also includes a fixed rod 527 fixedly connected to the fourth bracket 5115, and the inner side of the fixed rod 527 is slidably connected to the sliding rod 528, one end of the sliding rod 528 is fixedly connected to the second electromagnetic block 529, the outer side of the sliding rod 528 is fixedly connected to the limiting plate, and a spring 5210 is provided on the outer side of the sliding rod 528, one end of the spring 5210 is fixedly connected to the fixed rod 527, the other end of the spring 5210 is fixedly connected to the sliding rod 528, and the other end of the sliding rod 528 is fixedly connected to a pressure plate 5211, a sensor is provided on the inner side of the pressure plate 5211, and one side of the pressure plate 5211 is rotatably connected to a cleaning rod 5212.

[0052] Specifically, the magnetic adsorption of the first electromagnetic block 526 and the second electromagnetic block 529 drives the sliding rod 528 to slide along the fixed rod 527. The spring 5210 resets when the two are offset, driving the pressure plate 5211 to knock on the weld, clean particles and detect thermal deformation; when the sliding rod 528 moves, it drives the cleaning rod 5212 to push impurities into the fourth bracket 5115 to avoid affecting the detection accuracy.

[0053] Working principle: When in use, place the vehicle charger shield 6 on top of the base 1. Align its mounting slots with the output shafts of the four first electric telescopic rods 2. Adjust the first electric telescopic rods 2 to keep the shield horizontal. Activate the robotic arm 3. Its output shaft drives the vacuum suction cup 417 at the lower end through the three sets of connecting rods 411 to clamp the cable interface sleeve 7 and move it to the welding position.

[0054] The second electric telescopic rod 413 is activated, driving the third electric telescopic rod 414 through the sleeve to adjust the curved mounting plate 412 to a horizontal position, positioning the curved guide rail 415 above the cable interface sleeve 7. The three sets of third electric telescopic rods 414 are then activated, each driving the curved guide rail 415 toward the cable interface sleeve 7 until the three sets of curved guide rails 415 are aligned to form a complete track. Simultaneously, the grinding plate 426 is aligned with the sleeve's upper notch, and the first bracket 418 is aligned with the sleeve's outer wall. The first motor 4112 is activated, and its output shaft rotates the first gear 4110. The T-shaped slider 419 engages the slot in the curved guide rail 415, moving the first bracket 418 along the track. Simultaneously, the first motor 4112 drives the second gear 421, which in turn rotates the third gear 423 via the synchronous belt 422. This in turn drives the fifth electric telescopic rod 424, which in turn rotates the grinding plate 426 via the universal joint 425 to maintain alignment and rotation with the notch, completing the deburring process. When welding begins, the vacuum cup 417 is gradually closed according to the weld temperature, and the vacuum cup 417 is staggered with the sleeve by the fourth electric telescopic rod 416 to avoid high temperature damage;

[0055] When the first bracket 418 moves, it drives the connecting plate 511, which in turn drives the anti-spatter agent storage tank 512, the third bracket 514, and the welding head to move along the outer wall of the cable interface sleeve 7. The second motor 5112 is started, and its output shaft drives a set of seventh gears 5113 to rotate clockwise. This gear engages the fourth gear 515, causing it to rotate counterclockwise, which in turn drives another set of seventh gears 5113 to rotate counterclockwise, causing the carbon fiber brush 5114 to rotate around the welding head, cleaning impurities around the weld.

[0056] At the same time, the fourth gear 515 drives the fixed shafts 516 to rotate. One set of fixed shafts 516 drives the sixth gear 519 through the fifth gear 518, driving the normal temperature stirring rod 513 to stir the anti-spatter agent in the anti-spatter agent storage tank 512. The remaining fixed shafts 516 drive the cleaning cylinder 517 to rotate, cleaning the outer wall of the sleeve. The solenoid valve 5110 is activated, and the anti-spatter agent is sprayed onto the outer wall of the sleeve through the spray head 5111. The cleaning cylinder 517 evenly applies it, forming a ceramic film at high temperature to isolate the molten metal, reduce slag adhesion, and the film layer can be easily peeled off after welding.

[0057] The output shaft of the second motor 5112 drives the eccentric plate 521 to rotate. When the eccentric plate 521 rotates with the second motor 5112 as the axis, it drives the U-shaped slide bar 523 to be lifted upward along the limit frame 524 and to move periodically off the shelf through the connecting shaft 522. When the U-shaped slide bar 523 is lifted, it produces an angular deflection due to the guiding effect of the limit frame 524, and the hexagonal rod 525 is driven to rotate through the cooperation of the U-shaped groove and the first electromagnetic block 526. When the hexagonal rod 525 rotates, the first electromagnetic block 526 below attracts the second electromagnetic block 529. The second electromagnetic block 529 drives the sliding rod 528 to slide along the inner side of the fixed rod 527 through magnetism, and compresses the spring through the limit plate. 5210, after the sliding rod 528 is offset from the second electromagnetic block 529, the elastic force of the spring 5210 resets the sliding rod 528. The acceleration generated by the reset drives the pressure plate 5211 to knock on the weld of the vehicle charger shielding cover 6, knocking and cleaning the particles around the weld of the cable interface sleeve 7 of the vehicle charger shielding cover 6, and the sensor of the pressure plate 5211 detects whether thermal deformation occurs at the weld, and the fallen particles enter the inner side of the fourth bracket 5115. When the sliding rod 528 moves, it drives the cleaning rod 5212 to slide and clean impurities toward the inside of the fourth bracket 5115, so as to avoid particles concentrating under the pressure plate 5211 and affecting the detection accuracy.

[0058] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for manufacturing electrical equipment, comprising a base (1), characterized in that: Four groups of first electric telescopic rods (2) are installed at the upper end of the base (1), and the output shafts of the four groups of first electric telescopic rods (2) are commonly provided with a shielding cover. A mechanical arm (3) is installed at a position close to one side of the upper end of the base (1), and the output shaft of the mechanical arm (3) is provided with a positioning mechanism (4). A welding mechanism (5) is provided at the lower end of the positioning mechanism (4), and a welding head is installed on the inner side of the welding mechanism (5).

2. A welding device for manufacturing electrical equipment according to claim 1, characterized in that: The positioning mechanism (4) comprises a fixing assembly (41) for positioning the cable interface sleeve, and the positioning mechanism (4) further comprises a chamfering assembly (42) for chamfering the cable interface sleeve.

3. A welding device for manufacturing electrical equipment according to claim 2, characterized in that: The fixing assembly (41) includes three groups of connecting rods (411), the lower ends of the three groups of connecting rods (411) are rotatably connected to an arc-shaped mounting plate (412), a second electric telescopic rod (413) is installed on the inner side of the connecting rod (411), the output shaft of the second electric telescopic rod (413) is fixedly connected to a third electric telescopic rod (414) through a sleeve, one end of the three groups of third electric telescopic rods (414) are fixedly connected to the arc-shaped mounting plate (412), the output shafts of the third electric telescopic rods (414) are respectively fixedly connected to an arc-shaped guide rail (415), the other side of the arc-shaped guide rail (415) is provided with a slide groove, a fourth electric telescopic rod (416) is installed at the lower end of the arc-shaped mounting plate (412), the output shaft of the fourth electric telescopic rod (416) is provided with a vacuum suction cup (417), and the suction cups of the three groups of vacuum suction cups (417) are commonly provided with a cable interface sleeve.

4. A welding device for manufacturing electrical equipment according to claim 3, characterized in that: The upper end of the arc-shaped guide rail (415) is slidably connected to a first bracket (418), the inner side of the first bracket (418) is fixedly connected to a T-shaped slider (419), the T-shaped slider (419) is slidably connected to the inner side of the slide groove of the arc-shaped guide rail (415), the inner side of the T-shaped slider (419) is rotatably connected to a first gear (4110) via a rotating shaft, one side of the first bracket (418) is fixedly connected to a second bracket (4111), the other side of the second bracket (4111) is equipped with a first motor (4112), the output shaft of the first motor (4112) passes through the second bracket (4111), and the output shaft of the first motor (4112) is fixedly connected to the first gear (4110).

5. The welding device for manufacturing electrical equipment according to claim 2, characterized in that: The chamfering assembly (42) includes two sets of symmetrical second gears (421), the inner sides of the second gears (421) are fixedly connected to the output shaft of the first motor (4112), the outer sides of the second gears (421) are meshedly connected to a synchronous belt (422), the inner sides of the synchronous belt (422) are meshedly connected to a third gear (423), and the inner sides of the two sets of third gears (423) are both provided with symmetrical fifth electric telescopic rods (424), the outer shells of the fifth electric telescopic rods (424) are rotatably connected to the second bracket (4111), the output shaft of the fifth electric telescopic rod (424) is fixedly connected to a universal coupling (425), and the other end of the universal coupling (425) is fixedly connected to a frosting plate (426).

6. The welding device for manufacturing electrical equipment according to claim 1, characterized in that: The welding mechanism (5) comprises a spraying assembly (51) for cleaning a cable interface sleeve, and the welding mechanism (5) further comprises a welding assembly (52) for processing a weld seam.

7. A welding device for manufacturing electrical equipment according to claim 6, characterized in that: The spray assembly (51) includes a connecting plate (511) fixedly connected to the first bracket (418), the lower end of the connecting plate (511) is fixedly connected to the anti-splash agent storage tank (512) through a connecting rod, the upper end of the anti-splash agent storage tank (512) is rotatably connected to the sixth gear (519), the inner side of the anti-splash agent storage tank (512) is rotatably connected to the normal temperature stirring rod (513), the upper end of the normal temperature stirring rod (513) is fixedly connected to the sixth gear (519), the lower end of the anti-splash agent storage tank (512) is fixedly connected to the third bracket (514), the inner side of the third bracket (514) is fixedly connected to the welding head, the lower end of the third bracket (514) is fixedly connected to the fourth bracket (5115), the outer side of the anti-splash agent storage tank (512) is close to the upper end A solenoid valve (5110) is installed at the position, the input port of the solenoid valve (5110) is provided with a hose, and the output port of the solenoid valve (5110) is provided with multiple groups of spray heads (5111) through a pipeline, the outer side of the anti-splash agent storage tank (512) is rotatably connected to a fourth gear (515) near the lower end, the upper end of the fourth gear (515) is fixedly connected to multiple groups of fixed rotating shafts (516), the upper end of the fixed rotating shaft (516) is slidably connected to the inner side of the connecting plate (511), the outer side of the fixed rotating shaft (516) is fixedly connected to a cleaning cylinder (517), and the outer side of one of the multiple groups of fixed rotating shafts (516) is fixedly connected to a fifth gear (518), and the outer side of the fifth gear (518) is meshed with a sixth gear (519).

8. The welding device for manufacturing electrical equipment according to claim 7, characterized in that: A second motor (5112) is installed on one side of the third bracket (514), and two groups of symmetrical seventh gears (5113) are provided on the inner side of the third bracket (514), and the two groups of seventh gears (5113) are meshed and connected with the fourth gear (515). The output shaft of the second motor (5112) is fixedly connected to one of the two groups of seventh gears (5113), and the inner side of the other group of seventh gears (5113) in the two groups of seventh gears (5113) is rotatably connected to the welding head. One end of the group of seventh gears (5113) close to the welding head in the two groups of seventh gears (5113) is fixedly connected to a carbon fiber brush (5114).

9. The welding device for manufacturing electrical equipment according to claim 6, characterized in that: The welding assembly (52) includes an eccentric plate (521) fixedly connected to the output shaft of the second motor (5112), the other side of the eccentric plate (521) is fixedly connected to a connecting shaft (522), the outer side of the connecting shaft (522) is rotatably connected to a U-shaped slide bar (523), the outer side of the U-shaped slide bar (523) is slidably connected to a limit frame (524), one side of the limit frame (524) is rotatably connected to the third bracket (514) via a rotating shaft, the other side of the limit frame (524) is rotatably connected to a hexagonal rod (525) via a rotating shaft, the six groups of fulcrums of the hexagonal rod (525) are all fixedly connected to a first electromagnetic block (526), ​​and the outer side of the first electromagnetic block (526) is movably connected to the groove of the U-shaped slide bar (523).

10. The welding device for manufacturing electrical equipment according to claim 6, characterized in that: The welding assembly (52) further includes a fixed rod (527) fixedly connected to the fourth bracket (5115), the inner side of the fixed rod (527) is slidably connected to a sliding rod (528), one end of the sliding rod (528) is fixedly connected to a second electromagnetic block (529), the outer side of the sliding rod (528) is fixedly connected to a limiting plate, a spring (5210) is provided on the outer side of the sliding rod (528), one end of the spring (5210) is fixedly connected to the fixed rod (527), the other end of the spring (5210) is fixedly connected to the sliding rod (528), the other end of the sliding rod (528) is fixedly connected to a pressure plate (5211), a sensor is provided on the inner side of the pressure plate (5211), and one side of the pressure plate (5211) is rotatably connected to a cleaning rod (5212).

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