A continuity welding device for switchgear and a welding method thereof

Abstract

The application relates to the technical field of laser welding equipment, and discloses a continuity welding device for switch equipment and a welding method thereof, which comprises a main box body and a conveying part. The conveying part is arranged at the manual operation end of the main box body and is used for feeding materials to be processed into the main box body and feeding finished products out of the main box body. Through the arrangement of a vibrating screen assembly and a progressive conveying assembly, the scattered materials are automatically arranged in a queue after being arranged by a vibrating screen disc, and then the materials are stepped and orderly conveyed between positioning grooves by cooperation of a progressive box body and a lifting piece. In combination with automatic grabbing and transferring of a universal mechanical arm, full-automatic continuous feeding from scattered material input to a processing station is realized, operation interruption caused by manual feeding is eliminated, batch welding production efficiency of switch equipment parts is improved, and the problems of insufficient production efficiency, low precision and high process risk in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of laser welding equipment technology, and more specifically, to a continuous welding apparatus and welding method for switchgear. Background Technology

[0002] The moving contact assembly in a disconnecting switch typically consists of two parallel copper plates, with a bushing and a magnetic lock welded to each end. The bushing is used to subsequently insert a rotating shaft to allow the moving contact to rotate and open, while the magnetic lock generates electromagnetic attraction when a short-circuit current passes through, enhancing the contact pressure. During the welding process, the dimensional accuracy of the inner hole of the assembly formed by the bushing and copper plates directly affects the assembly accuracy and operational reliability of the moving contact in the disconnecting switch; therefore, controlling the inner hole size is a critical step in the welding process.

[0003] In the prior art, Chinese invention patent CN120572152B discloses a continuous welding device and welding method for switchgear. The device includes a chassis, a fixing component, a welding component, a drill bit, and a driver. The fixing component comprises a fixed frame, a rotating component, and a moving frame, which can switch between vertical and horizontal states. The workflow is as follows: Before welding, the moving frame rotates to a vertical position. The operator places two copper plates and a bushing on the outside of the non-rotating drill bit, guides and aligns the copper plates and bushing using the drill bit, and presses the assembled copper plates and bushing together using a pressure plate. During welding, the moving frame rotates to a horizontal position, and a laser welds from above onto the support rod and bushing. After welding, the moving frame rotates back to a vertical position, and the rotating drill bit is inserted into the receiving hole to clean and reshape the inner diameter deformation caused by welding.

[0004] However, the automation level of this device is limited. Material assembly and placement before welding still require manual operation, making it impossible to achieve fully automated continuous flow from bulk material input to finished product output. Manual loading and unloading cause frequent interruptions in welding operations, which restricts further improvement in batch production efficiency. At the same time, the drill bit is used as a non-rotating guide and positioning axis before welding and as a rotating shaping tool after welding. Although this functional reuse simplifies the structure, the fixed drill bit diameter makes it impossible to detect the inner hole size of the incoming material online. Forcing workpieces with smaller inner hole sizes into the machine can easily cause scratches or jamming. Moreover, the sliding friction of the drill bit during the guiding stage can lead to surface wear and affect subsequent accuracy. In addition, the existing process places laser welding before inner hole grinding and shaping. The thermal deformation caused by the high temperature of welding may cause the inner hole to shrink or become out of round. If the deformation is too large, subsequent cutting and shaping will damage the surface quality of the inner hole or even damage the tool or workpiece. Summary of the Invention

[0005] This invention proposes a continuous welding device and welding method for switchgear, which solves the problems of insufficient production efficiency, low precision and high process risk in related technologies.

[0006] The technical solution of the present invention is as follows: a continuous welding apparatus and welding method for switchgear, comprising a main housing; The conveying unit is located at the manual operation end of the main box, and is used to feed the material to be processed into the main box and to send the finished product out of the main box. The conveying unit consists of a vibrating screen assembly, two linear conveying assemblies, two progressive conveying assemblies, and three extraction assemblies. The vibrating screen assembly is located inside the main body operating port and is used for conveying materials. Two linear conveying assemblies are symmetrically arranged on both sides of the main body operating port and are used for conveying materials and finished products, respectively. Two progressive conveying assemblies are located on one side of the two linear conveying assemblies and are used for conveying materials and finished products, respectively. Three extraction assemblies are located on both sides and in the middle of the two progressive conveying assemblies and are used for placing materials and finished products. A processing unit, located inside the main housing, is used to process materials; The processing unit consists of a welding assembly, an interleaved processing assembly, and two delivery assemblies. The welding assembly is located inside the main housing and is used for welding materials. The staggered processing assembly is located at the bottom of the welding assembly and is used for positioning the material and determining the inner diameter of the hole. The two delivery assemblies are respectively located at the processing ends of the two progressive conveying assemblies and are used for material processing, fixing, and conveying.

[0007] As a preferred embodiment of the present invention, the main housing is composed of a power control box and an operation box, the operation box and the power control box are connected to each other, and a parts input port is provided on one side of the operation box; A visual monitoring component is also provided on the top inner wall of the main housing. The visual monitoring component consists of several visual identifiers and lighting lamps. Several visual identifiers are respectively located on the top of the extraction component and the interleaved processing component, and several lighting lamps are equidistantly distributed on the top inner wall of the main housing.

[0008] In a preferred embodiment of the present invention, the linear conveying assembly comprises a conveying base, which is disposed at the top of the part input port. A conveying motor is mounted on one side of the conveying base, and a conveyor belt is disposed inside the conveying base. The conveying motor is used to drive the conveyor belt.

[0009] As a preferred embodiment of the present invention, the progressive conveying assembly consists of a progressive box and a plurality of spaced storage plates. The progressive box is disposed on one side of the linear conveying assembly, and the plurality of spaced storage plates are equidistantly distributed on the top of the progressive box. An axial telescopic cylinder is installed on one side of the progressive box, and a sliding plate is installed at the output end of the axial telescopic cylinder. Two symmetrically arranged lifting cylinders are disposed on the top of the sliding plate, and a lifting plate is installed at the output end of the two lifting cylinders. A centering cylinder is installed on one side of the end of the advancing box, and an air inlet is provided at the bottom of the end of the advancing box. A through groove is provided at the air inlet of the advancing box.

[0010] As a preferred embodiment of the present invention, the vibrating screen assembly consists of a vibrating screen plate and a dispensing box. The vibrating screen plate is disposed on one side of the linear conveying assembly at the material input end. An output port is provided on one side of the vibrating screen plate. The dispensing box is installed on one side of the material input end. A lateral cylinder is installed on one side of the dispensing box. A dispensing slide frame is installed at the output end of the lateral cylinder. The extraction component consists of a omnidirectional robotic arm and a flexible gripper. The omnidirectional robotic arm is respectively located on both sides and the middle of the two progressive conveying components, and the flexible gripper is installed at the end of the omnidirectional robotic arm.

[0011] In a preferred embodiment of the present invention, the welding assembly comprises an axial transmission mechanism, a radial transmission mechanism, a height adjustment mechanism, a rotation mechanism, a dust collector, and a laser welder; The axial transmission mechanism is installed on one side of the interlaced processing assembly, the radial transmission mechanism is installed on top of the axial transmission mechanism, the height adjustment mechanism is installed on one side of the axial transmission mechanism, the rotating mechanism is installed on one side of the height adjustment mechanism, the dust collector is installed on the side of the rotating mechanism, the laser welder is installed at the output end of the rotating mechanism, and the tail of the laser welder is provided with a feed pipe.

[0012] In a preferred embodiment of the present invention, the delivery assembly comprises a delivery track and a connecting base. The two delivery tracks are respectively disposed on one side of the two progressive delivery assemblies. A delivery slider is slidably mounted on the delivery track. The connecting base is mounted on the top of the delivery slider. A back plate is provided on the top of the connecting base. An electric telescopic cylinder is movably hinged to the back plate. A processing top plate is movably hinged to the connecting base via a hinge block. The processing top plate is hinged to the output end of the electric telescopic cylinder. A limit block is fixedly connected to one side of the processing top plate. The processing top plate is internally fitted with a sliding block, and the bottom of the sliding block is provided with a guide slider. The guide slider is slidably fitted inside the processing top plate. Both the sliding block and the top of the processing top plate are provided with limit blocks. At least two elastic dampers are connected between the processing top plate and the sliding block. Both sides of the sliding block are provided with top contact points. A rotator is installed on the top of the processing top plate. The output end of the rotator is connected to a coaxially arranged rotating plate via a coupling. A hinge plate is fixedly connected to the top of the rotating plate. A rotating block is movably hinged to one end of the hinge plate. Two symmetrically arranged torsion springs are arranged between the rotating block and the hinge plate. A pressure block is fixedly connected to one side of the rotating block. A positioning block is provided at the bottom of the pressure block. A top head is provided on one side of the pressure block. The top head abuts against the processing top plate.

[0013] As a preferred embodiment of the present invention, the staggered processing assembly consists of a processing base, a cleaning mechanism, and a positioning mechanism. The processing base is disposed at the bottom of the welding assembly. A front guide rail, a rear guide rail, and a tail guide rail are fixedly connected to the top of the processing base. A servo motor is installed on one side of the rear guide rail, and a plurality of symmetrically arranged belt guide pulleys are rotatably installed on the other side of the rear guide rail. A transmission belt is commonly fitted on the plurality of belt guide pulleys. The cleaning mechanism is slidably mounted on the rear guide rail and the tail guide rail, and the cleaning mechanism is also connected to the transmission belt; The cleaning mechanism consists of a first belt connecting clamp and a top sliding plate. The first belt connecting clamp is connected to the transmission belt. The top sliding plate is slidably mounted on the rear guide rail and the tail guide rail and is connected to the first belt connecting clamp. The positioning mechanism is slidably mounted on the rear guide rail and the front guide rail, and the positioning mechanism is also connected to the transmission belt; The positioning mechanism consists of a V-shaped guide rail, a second belt connecting clamp, and a central sliding plate. The V-shaped guide rail is located between the front guide rail and the rear guide rail. The second belt connecting clamp is connected to the transmission belt. The central sliding plate is slidably mounted on the front guide rail and the rear guide rail and is connected to the second belt connecting clamp. At least four symmetrically arranged telescopic shafts are slidably mounted inside the central sliding plate. A top mounting plate is fixedly connected to the top of several telescopic shafts. A connecting guide wheel is fixedly connected to the bottom of the top mounting plate. The connecting guide wheel is slidably mounted inside the V-shaped guide rail.

[0014] As a preferred embodiment of the present invention, the cleaning mechanism further includes a rotating host, which is installed on the top of the top slide plate, and an inner hole grinding shaft is installed at the output end of the rotating host. The positioning mechanism also includes a positioning feedback device, which is mounted on the top of the top mounting plate; The positioning feedback device consists of a mounting frame and a feedback box. The mounting frame and the feedback box are coaxially mounted on the top of the top mounting plate. Four centering guide wheels are evenly distributed and rotated inside the mounting frame. A tail contactor is fixedly connected inside the feedback box. A damping block is slidably mounted inside the feedback box. Feedback contactors are installed on both sides of the damping block. A positioning shaft is fixedly connected to one side of the damping block. The positioning shaft passes through the interior of the mounting frame and contacts the centering guide wheels.

[0015] Welding method for continuous welding apparatus used in switchgear; S1. Material loading and initial positioning: The omnidirectional robotic arm of the extraction component grabs the material to be processed from the progressive conveying component at the material input end and places it on the processing top plate of the delivery component; the electric telescopic cylinder drives the processing top plate and the sliding block to clamp the two sides of the material, and the rotator drives the pressure block to press down, so that the positioning block and the limit block cooperate to achieve the initial fixation of the material; S2. Material is delivered to the first station for internal hole positioning and dimensional measurement: The delivery slider slides along the delivery track, feeding the clamped material into the working area of ​​the interleaved processing component and aligning the inner hole of the material with the positioning shaft of the positioning mechanism; the top mounting plate rises under the drive of the telescopic shaft, so that the centering guide wheel of the positioning feedback device contacts the inner hole of the material, and with the cooperation of the V-shaped guide track and the connecting guide wheel, the positioning shaft automatically centers and inserts into the inner hole of the material. S3. Inner hole size inspection and pass / fail judgment: During the insertion of the positioning shaft, if the inner diameter is smaller than the positioning shaft diameter, the damping block will be forced to move backward, triggering the feedback toucher and sending a dimension non-compliance signal to the control system. The control system will then control the delivery component to move the material back to the initial position along the delivery track based on this signal, and the extraction component will remove the non-compliance material. If the inner diameter is within acceptable limits, the positioning shaft will be fully inserted and the feedback toucher will not be triggered, thus completing the inner diameter confirmation. S4. After positioning is completed, the delivery component returns and the workstation switches alternately: After the positioning step is completed, the delivery component releases the clamp on the material and slides back to the initial position along the delivery track; the servo motor drives the cleaning mechanism and the positioning mechanism to move synchronously along the front guide rail, the rear guide rail and the tail guide rail through the transmission belt, so that the inner hole grinding shaft of the cleaning mechanism and the positioning shaft of the positioning mechanism complete the position exchange at the material processing station. S5. The material is delivered to the welding station for laser welding: After the workstation switch is completed, the delivery component slides back above the material, re-clamps the qualified material and removes it from the positioning shaft. Then the delivery slider moves the material horizontally to the welding station below the welding component. The axial transmission mechanism, radial transmission mechanism and height adjustment mechanism of the welding component move the laser welder to the welding position above the material. The rotation mechanism adjusts the posture of the laser welder. The dust collector collects welding fumes simultaneously. The laser welder completes the welding of the part of the material to be welded. S6. The material is delivered to the grinding station for internal hole grinding and cleaning: After welding is completed, the delivery component moves the material back to the area where the interleaved processing component is located. At this time, the servo motor drives the transmission belt again to make the cleaning mechanism and the positioning mechanism move alternately, switching the inner hole grinding shaft to the processing station. The delivery component aligns the inner hole of the welded material with the inner hole grinding shaft and fits it in. The top slide plate drives the rotating host and the inner hole grinding shaft to rise and enter the inner hole of the material. The rotating host drives the inner hole grinding shaft to rotate, grinding and cleaning the oxide scale and minor deformation on the edge of the inner hole caused by welding. S7. Finished Product Output: After grinding and cleaning, the delivery component moves the finished product out of the interlaced processing component area and flips it back to a horizontal position. The omnidirectional robotic arm in the middle of the extraction component grabs the finished product and transfers it to the progressive conveying component at the finished product output end. After progressive conveying and linear conveying, it is sent out of the main box operation port to complete the continuous welding process.

[0016] As a preferred embodiment of the present invention The working principle and beneficial effects of this invention are as follows: 1. This invention, through the design of structures such as vibrating screen components and progressive conveying components, enables scattered materials to be automatically arranged into rows after being vibrated and sorted by the vibrating screen disc. Then, the progressive box and lifting plate work together to realize the step-by-step orderly progression of materials between positioning slots. Combined with the automatic gripping and transfer of the universal robotic arm, it realizes fully automatic continuous material feeding from bulk material input to the processing station, eliminating the operation interruption caused by manual material feeding and improving the batch welding production efficiency of switchgear components.

[0017] 2. This invention, through the setting of a positioning feedback device, delivery component and other structures, allows the delivery component to accurately fit the inner hole of the material into the positioning shaft before welding. The inner hole size is detected online by the cooperation of the damping top block and the feedback contactor. Materials with unqualified dimensions can be automatically identified and rejected. At the same time, the delivery component drives the linkage between the pressure block and the sliding block through the rotator to achieve flexible and elastic clamping of the material, avoiding the deformation of parts caused by rigid clamping, and ensuring the consistency of the accuracy of the inner hole positioning and welding operation.

[0018] 3. This invention separates the internal hole positioning and detection process from the laser welding process by setting up staggered processing components and welding components. The dimensions are confirmed before welding, and after welding, the staggered processing components switch the positioning shaft and the internal hole grinding shaft through differential connection of the transmission belt. The internal hole grinding shaft is used to flexibly grind and clean the slight changes in the inner diameter caused by welding thermal deformation, rather than large cutting volume shaping, thereby effectively avoiding the process risks of high temperature deformation during welding to the surface quality of the tool and the workpiece. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the main housing of the present invention; Figure 4 This is a schematic diagram of the overall structure of the linear conveying assembly of the present invention; Figure 5 This is a schematic diagram of the overall structure of the progressive delivery component of the present invention; Figure 6 This is a schematic side view of the overall structure of the progressive delivery component of the present invention; Figure 7 This is a schematic diagram of the overall structure of the vibrating screen assembly of the present invention; Figure 8 This is a schematic diagram of the overall structure of the extraction component of the present invention; Figure 9 This is a schematic diagram of the overall structure of the delivery component of the present invention; Figure 10 This is a schematic diagram of the overall structure of the connecting base of the present invention; Figure 11 This is a schematic diagram of the overall structure of the pressing block of the present invention; Figure 12 This is a schematic diagram of the overall structure of the sliding block of the present invention; Figure 13 This is a schematic diagram of the overall structure of the staggered processing component of the present invention; Figure 14This is a side view of the overall structure of the staggered processing component of the present invention; Figure 15 This is a schematic diagram of the transmission structure of the interlaced processing component of the present invention; Figure 16 This is a schematic diagram of the overall structure of the positioning mechanism of the present invention; Figure 17 This is a schematic diagram of the overall structure of the welding assembly of the present invention.

[0021] In the diagram: 100, conveying section; 200, processing section; 1. Main housing; 11. Power control box; 12. Control box; 13. Parts input port; 2. Linear conveyor assembly; 21. Conveyor base; 22. Conveyor motor; 23. Conveyor belt; 3. Progressive conveying assembly; 31. Progressive housing; 32. Spacer storage plate; 33. Axial telescopic cylinder; 34. Sliding plate; 35. Lifting cylinder; 36. Lifting plate; 37. Centering cylinder; 38. Air outlet.

[0022] 4. Vibrating screen assembly; 41. Vibrating screen plate; 42. Output port; 43. Dispensing box; 44. Side cylinder; 45. Dispensing slide frame; 5. Extraction components; 51. Universal robotic arm; 52. Flexible gripper; 6. Delivery assembly; 60. Delivery track; 61. Delivery slider; 62. Connecting base; 621. Back top plate; 622. Electric telescopic cylinder; 63. Machining top plate; 631. Limiting block; 632. Hinge block; 633. Limiting latch; 64. Rotator; 641. Rotating plate; 642. Hinge plate; 643. Rotating block; 644. Torsion spring; 645. Pressure block; 646. Positioning block; 647. Top head; 65. Sliding block; 651. Guide slider; 652. Elastic damping; 653. Top contact point; 7. Interlaced machining assembly; 71. Machining base; 72. Front guide rail; 73. Rear guide rail; 74. Tail guide rail; 75. Servo motor; 76. Belt guide pulley; 77. Drive belt; 78. Cleaning mechanism; 781. First belt connecting clamp; 782. Top sliding plate; 783. Rotating main unit; 784. Inner hole grinding shaft; 79. Positioning mechanism; 790. V-shaped guide rail; 791. Second belt connecting clamp; 792. Middle sliding plate; 793. Telescopic shaft; 794. Top mounting plate; 795. Connecting guide wheel; 796. Positioning feedback device; 7961. Mounting bracket; 7962. Centering guide wheel; 7963. Feedback box; 7964. Tail contactor; 7965. Positioning shaft; 7966. Damping top block; 7967. Feedback contactor.

[0023] 8. Welding assembly; 81. Axial transmission mechanism; 82. Radial transmission mechanism; 83. Height adjustment mechanism; 84. Rotation mechanism; 85. Dust collector; 86. Laser welder; 87. Feed pipe; 9. Visual monitoring components; 91. Visual recognition device; 92. Lighting. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] Example like Figures 1-17 As shown, a continuous welding apparatus and welding method for switchgear includes a main housing 1 and a conveying unit 100. The conveying unit 100 is disposed at the manual operation end of the main housing 1 and is used to feed the material to be processed into the main housing 1 and to send the finished product out of the main housing 1. The conveying unit 100 consists of a vibrating screen assembly 4, two linear conveying assemblies 2, two progressive conveying assemblies 3, and three extraction assemblies 5. The vibrating screen assembly 4 is located inside the operating port of the main housing 1. The vibrating screen assembly 4 is used for conveying materials. Two linear conveying assemblies 2 are symmetrically arranged on both sides of the operating port of the main housing 1. The two linear conveying assemblies 2 are used for conveying materials and finished products respectively. Two progressive conveying assemblies 3 are respectively located on one side of the two linear conveying assemblies 2. The two progressive conveying assemblies 3 are used for conveying materials and finished products respectively. Three extraction assemblies 5 are respectively located on both sides and in the middle of the two progressive conveying assemblies 3. The extraction assemblies 5 are used for placing materials and finished products. Processing unit 200 is located inside the main housing 1 and is used to process materials; The processing unit 200 consists of a welding assembly 8, an interlaced processing assembly 7, and two delivery assemblies 6. Welding assembly 8 is located inside the main housing 1 and is used for welding materials. Interlaced processing assembly 7 is located at the bottom of welding assembly 8 and is used for positioning the material and determining the inner diameter. Two delivery assemblies 6 are located at the processing ends of the two progressive conveying assemblies 3 respectively and are used for material processing, fixing, and conveying.

[0026] The device separates the operating area from the power area through the main housing 1. The manual operation end of the main housing 1 is equipped with a conveying unit 100. The function of the conveying unit 100 is to orderly feed the copper plate assembly in the switchgear into the processing area inside the main housing 1, and output the finished product after processing. The conveying unit 100 consists of a vibrating screen assembly 4, two linear conveying assemblies 2, two progressive conveying assemblies 3, and three extraction assemblies 5. The vibrating screen assembly 4 is located inside the operating port of the main housing 1. Its function is to vibrate and organize the batch-input materials, separating the originally randomly stacked materials and arranging them along a specific path under vibration, thus providing conditions for subsequent grasping. The two linear conveying assemblies 2 are symmetrically arranged on both sides of the operating port of the main housing 1. One is dedicated to conveying the organized materials towards the processing area, while the other is dedicated to conveying the finished welded products out of the operating port. A progressive conveying assembly 3 is correspondingly located on each side of the linear conveying assembly 2. The progressive conveying assembly 3 receives materials from the linear conveying assembly 5. The material or finished product of the line conveyor component 2 is conveyed in an orderly and sequential manner at the storage station, forming a buffer and precise feeding queue. The three extraction components 5 are respectively installed on both sides of the two progressive conveyor components 3 and in the middle between the two progressive conveyor components 3. The extraction components 5 on both sides are responsible for grabbing the material from the progressive conveyor component 3 at the material input end and transferring it to the processing section 200, and grabbing the finished product from the processing section 200 and transferring it to the progressive conveyor component 3 at the output end. The extraction component 5 in the middle directly picks up and puts the material between the processing area inside the main box 1 and the delivery component 6. The processing section 200 is set inside the main box 1 and is the core area for completing welding and auxiliary processing. The processing unit 200 consists of a welding assembly 8, an interleaved processing assembly 7, and two delivery assemblies 6. The welding assembly 8 is fixed in the upper space inside the main housing 1 and its function is to perform laser welding on specific parts of the material to be welded. The interleaved processing assembly 7 is set on the base directly below the welding assembly 8. The interleaved processing assembly 7 has the characteristic of alternating dual-station operation, which can sequentially complete the positioning and dimensional inspection of the inner hole before welding and the cleaning of the inner hole surface after welding. The two delivery assemblies 6 are respectively configured on one side of the processing end of the two progressive conveying assemblies 3, that is, respectively serving the processing station at the material input end and the auxiliary station at the finished product output end. The delivery assembly 6 moves between the worktable inside the main housing 1 and the interleaved processing assembly 7 through a sliding rail structure. The clamping mechanism on it can firmly fix the material and drive the material to switch positions between the positioning station, the grinding station and the welding station. The material is first fed into the vibrating screen assembly 4, and after being sorted, it is conveyed by the linear conveyor assembly 2 to the progressive conveyor assembly 3 for queuing. Then, the extraction assembly 5 grabs it and places it on the delivery assembly 6. The delivery assembly 6 carries the material into the area of ​​the interleaved processing assembly 7 for inner hole positioning and size detection. If the inner hole size meets the requirements, the delivery assembly 6 returns, the interleaved processing assembly 7 performs internal station switching, moves the grinding shaft to the working position, and the delivery assembly 6 feeds again to put the material into the grinding shaft for inner hole cleaning. Finally, the welding assembly 8 completes the welding, and the welded finished product is sent out of the main box 1 through the extraction assembly 5 and the output end progressive conveyor assembly 3.

[0027] The main housing 1 consists of a power control box 11 and an operation box 12. The operation box 12 and the power control box 11 are connected to each other. A parts input port 13 is provided on one side of the operation box 12. A visual monitoring component 9 is also installed on the top inner wall of the main housing 1. The visual monitoring component 9 consists of several visual identifiers 91 and lighting lamps 92. Several visual identifiers 91 are respectively installed on the top of the extraction component 5 and the interleaved processing component 7, and several lighting lamps 92 are equally distributed on the top inner wall of the main housing 1.

[0028] The main housing 1 is composed of two parts: a power control box 11 and an operation box 12. The operation box 12 is located at the top of the device and is the operation area for manually placing and taking out materials. A part input port 13 is opened on its side wall. The part input port 13 serves as the initial channel for materials to enter the conveying section 100. The power control box 11 is located at the bottom of the operation box 12. The two housings are rigidly connected by bolts. The power control box 11 contains all the electrical control units required by the welding device, including a programmable logic controller, a servo driver, a power module, and a pneumatic valve group. On the top inner wall of the main housing 1, a visual monitoring component 9 is also installed. The visual monitoring component 9 consists of several visual recognition devices 91 and several lighting lamps 92. The visual recognition device 91 is an industrial camera with image acquisition and processing functions. The visual recognition device 91 is fixedly installed above the end effector of the extraction component 5 and above the processing station of the interleaved processing component 7. The vision recognition device 91 located above the extraction component 5 is used to identify the spatial coordinates and posture of the material on the progressive conveying component 3, guiding the omnidirectional robotic arm to grasp it. The vision recognition device 91 located above the interlaced processing component 7 is used to monitor in real time the state of the inner hole grinding shaft inserted into the material, the alignment of the laser welding head and the weld, and the shape of the molten pool during the welding process, to ensure processing accuracy. To ensure that the visual recognition device 91 can acquire clear images inside the semi-enclosed operating box 12, multiple lighting lamps 92 are installed in an equidistant array on the top inner wall of the main box 1. The lighting lamps 92 use high-brightness light-emitting diodes as light sources, and the light emitted by them evenly illuminates the entire working area, eliminating shadows caused by structural obstruction, and providing a stable lighting environment for the feature extraction and edge detection algorithms of the visual recognition device 91. The activation of the lighting lamps 92 and the shooting trigger signal of the visual recognition device 91 are synchronously controlled by the controller in the power control box 11. After the operator puts the material into the part input port 13, the entire process of material conveying, positioning and processing inside the operation box 12 is under visual monitoring. Once material jamming, abnormal posture or weld deviation occurs, the visual monitoring component 9 will immediately send an alarm signal to the power control box 11 and stop the equipment operation, thereby ensuring the quality consistency and operational safety of the continuous welding process of the switchgear.

[0029] The linear conveyor assembly 2 consists of a conveyor base 21, which is located on top of the part inlet 13. A conveyor motor 22 is installed on one side of the conveyor base 21, and a conveyor belt 23 is installed inside the conveyor base 21. The conveyor motor 22 is used to drive the conveyor belt 23.

[0030] The main body of the linear conveyor assembly 2 is a conveyor base 21 constructed from profiles. The mounting plane of the conveyor base 21 is directly fixed to the bottom plate of the operation box 12 on top of the part input port 13. A conveyor motor 22, which is a stepper motor, is fixedly installed on the side wall of the conveyor base 21. Its output shaft extends into the internal cavity of the conveyor base 21. A conveyor belt 23, which is an industrial belt with anti-slip texture, is installed inside the conveyor base 21 and wraps around the drive roller and the driven roller. The output shaft of the conveyor motor 22 is connected to the shaft end of the drive roller through a coupling. When the conveyor motor 22 receives a pulse command from the power control box 11 to rotate, the drive roller drives the conveyor belt 23 to circulate by friction. After the material is placed from the part input port 13 onto the bearing surface of the conveyor belt 23 by the operator, The material is transported forward along with the conveyor belt 23. To ensure that the material does not slip laterally during the transport process, guide guards that are higher than the bearing surface of the conveyor belt 23 are provided on both sides of the conveyor base 21. When the material is transported to the end of the conveyor belt 23, it will contact the limiting block provided at the end of the conveyor base 21. At this time, the conveyor belt 23 continues to run and slides against the bottom surface of the material until the side pushing mechanism or extraction component 5 transfers the material to the progressive conveying component 3. On the finished product output side, the working principle of another symmetrically arranged linear conveying component 2 is exactly the same, except that the conveying direction is opposite. After the progressive conveying component 3 pushes the finished product onto the conveyor belt 23 of the linear conveying component 2, the conveyor motor 22 reverses or rotates forward, driving the conveyor belt 23 to send the finished product back to the part input port 13 for easy removal by the operator.

[0031] The progressive conveying assembly 3 consists of a progressive box 31 and several spaced storage plates 32. The progressive box 31 is located on one side of the linear conveying assembly 2. Several spaced storage plates 32 are evenly distributed on the top of the progressive box 31. An axial telescopic cylinder 33 is installed on one side of the progressive box 31. A sliding plate 34 is installed at the output end of the axial telescopic cylinder 33. Two symmetrically arranged lifting cylinders 35 are installed on the top of the sliding plate 34. A lifting plate 36 is installed at the output end of the two lifting cylinders 35. A centering cylinder 37 is installed on one side of the end of the advancing box 31, and an air inlet 38 is provided at the bottom of the end of the advancing box 31. A through groove is provided on the advancing box 31 at the air inlet 38.

[0032] The progressive conveying assembly 3 is configured on the side of the linear conveying assembly 2. The progressive conveying assembly 3 consists of a progressive housing 31 and several spacer storage plates 32. The progressive housing 31 is a hollow metal shell with an open top channel, and its length direction is consistent with the material conveying direction. The several spacer storage plates 32 are made of sheet metal and are arranged at equal intervals with screws and fixed to the top two sides of the progressive housing 31. The gap between two adjacent spacer storage plates 32 forms a positioning groove for storing a single piece of material. When the linear conveying assembly 2 feeds the material, the material will slide into the positioning groove closest to the input end. In order to realize the progressive advancement of the material, a reciprocating conveyor is installed in the internal cavity of the progressive housing 31. The structure includes an axial telescopic cylinder 33 fixedly installed on the outer side wall of the advancing box 31. The piston rod of the axial telescopic cylinder 33 extends into the box and is connected to the sliding plate 34. The sliding plate 34 is a flat plate, and its bottom slides in cooperation with the linear guide rail on the bottom surface of the advancing box 31. When the piston rod of the axial telescopic cylinder 33 reciprocates, the sliding plate 34 makes a long-distance reciprocating linear motion along the material conveying direction inside the advancing box 31. On the upper surface of the sliding plate 34, two lifting cylinders 35 are installed in a symmetrical arrangement. The cylinder bodies of the two lifting cylinders 35 are vertically fixed, and the top of their piston rods are connected to a lifting plate 36. The length of the lifting plate 36 covers the positioning groove area formed by multiple spaced storage plates 32. When the axial telescopic cylinder 33 drives the sliding plate 34 to retract to the starting point, the lifting cylinder 35 is in the retracted state, and the upper surface of the lifting plate 36 is lower than the bottom surface of the material; then the piston rod of the lifting cylinder 35 extends, the lifting plate 36 rises and simultaneously lifts all the material in the current positioning slot, so that its bottom is freed from the support of the spacer plate 32; then the axial telescopic cylinder 33 extends, pushing the entire lifting plate 36, which is holding the material, forward one station spacing; finally, the lifting cylinder 35 retracts, the lifting plate 36 descends, and the material is placed in the next positioning slot that has advanced one station. The lifting plate 36 continues to descend and detach from the material; finally, the axial telescopic cylinder 33 retracts, driving the unloaded lifting plate 36 back to the starting point from under the material; This cycle enables the step-by-step transfer of materials between the positioning slots. At the end of the advancing box 31, near the extraction component 5, a centering cylinder 37 is installed. Its piston rod end has a push plate, which is used to push the material that has reached the end to the lateral reference surface to achieve positioning, making it easy for the omnidirectional robotic arm to grasp. In addition, a through slot is opened at the bottom of the end of the advancing box 31, and an air blowing port 38 is connected to the outside of the through slot. The air blowing port 38 is connected to a compressed air source through a pipeline. Before the material is extracted, airflow is blown upward through the through slot to clean up any debris that may be attached to the bottom of the material, ensuring the cleanliness of the subsequent welding process.

[0033] The vibrating screen assembly 4 consists of a vibrating screen plate 41 and a dispensing box 43. The vibrating screen plate 41 is located on one side of the linear conveying assembly 2 at the material input end. An output port 42 is provided on one side of the vibrating screen plate 41. The dispensing box 43 is installed on one side of the material input end. A lateral cylinder 44 is installed on one side of the dispensing box 43. A dispensing slide frame 45 is installed at the output end of the lateral cylinder 44. The extraction component 5 consists of a universal robotic arm 51 and a flexible gripper 52. The universal robotic arm 51 is respectively located on both sides and in the middle of the two progressive conveying components 3, and the flexible gripper 52 is installed at the end of the universal robotic arm 51.

[0034] The vibrating screen assembly 4 is used to process randomly fed materials. It consists of a vibrating screen disc 41 and a dispensing box 43. The vibrating screen disc 41 is a disc-shaped container with an open top and a vibrating motor installed at its bottom. The entire vibrating screen disc 41 is suspended from the frame of the operating box 12 on one side of the linear conveyor assembly 2 at the material input end by shock-absorbing springs. The inner wall of the vibrating screen disc 41 is provided with a spiral upward track. When the vibrating motor works, the vibrating screen disc 41 generates high-frequency, low-amplitude torsional vibration, forcing the material in the disc to climb upward layer by layer along the spiral track and automatically arrange itself into a column. An output port 42 is connected to the outlet of the spiral track of the vibrating screen disc 41. The output port 42 is connected to the dispensing box 43. The dispensing box 43 is a rectangular trough, the bottom of which is flush with the vertical surface of the material. The conveyor belt 23 of the linear conveyor assembly 2 is flush with the side of the pick-up box 43. A lateral cylinder 44 is installed on the side of the pick-up box 43. The piston rod of the lateral cylinder 44 passes through the side wall of the box and a pick-up slide frame 45 is installed at its end. The pick-up slide frame 45 is a rectangular frame structure, and its internal space can only hold a single piece of material. When the vibrating screen 41 sends the material through the output port 42 into the pick-up slide frame 45 in the pick-up box 43 by vibration, the lateral cylinder 44 is activated, pushing the pick-up slide frame 45 and the material inside it to move laterally until the material is pushed onto the conveyor belt 23 of the linear conveyor assembly 2. Then the lateral cylinder 44 retracts, and the pick-up slide frame 45 resets to wait for the next piece of material. This process transforms the chaotic incoming material into an orderly single-piece feeding. The extraction component 5 transports materials between various workstations. The extraction component 5 consists of a universal robotic arm 51 and a flexible gripper 52. The universal robotic arm 51 is a multi-degree-of-freedom articulated industrial robot. Its base is fixed to the sides and the middle of the two progressive conveying components 3. The universal robotic arms 51 on the sides are used to transfer materials between the progressive conveying components 3 and the delivery components 6. The universal robotic arm 51 in the middle is used to transfer materials between the two delivery components 6 or between the delivery components 6 and the defective product placement area. The flexible gripper 52 is installed on the end flange of the universal robotic arm 51. The flexible gripper 52 adopts a pneumatically driven parallel opening and closing mechanism. Its gripper finger surface is covered with a flexible pad of polyurethane material to protect the surface coating of the switch equipment parts during the gripping process. The power control box 11 controls the movement trajectory of the universal robotic arm 51 through programming, so that under the guidance of the vision monitoring component 9, it can move the flexible gripper 52 to the gripping position at the end of the progressive conveying component 3, close the gripper to grab the material, and then move it above the delivery component 6 to open the gripper to release the material.

[0035] The welding assembly 8 consists of an axial transmission mechanism 81, a radial transmission mechanism 82, a height adjustment mechanism 83, a rotation mechanism 84, a dust collector 85, and a laser welder 86; An axial transmission mechanism 81 is installed on one side of the staggered processing assembly 7, a radial transmission mechanism 82 is installed on top of the axial transmission mechanism 81, a height adjustment mechanism 83 is installed on one side of the axial transmission mechanism 81, a rotating mechanism 84 is installed on one side of the height adjustment mechanism 83, a dust collector 85 is installed on the side of the rotating mechanism 84, a laser welder 86 is installed at the output end of the rotating mechanism 84, and a feed pipe 87 is provided at the tail of the laser welder 86.

[0036] Welding assembly 8 is located to the side of interleaved processing assembly 7. Welding assembly 8 includes an axial transmission mechanism 81, a radial transmission mechanism 82, a height adjustment mechanism 83, a rotation mechanism 84, a dust collector 85, and a laser welder 86. The axial transmission mechanism 81 is a horizontally arranged electric lead screw slide, the base of which is fixedly mounted on the processing seat 71 or the bottom plate of the main housing 1 on one side of the interleaved processing assembly 7 by bolts. A transition plate is fixedly connected to the slide of the axial transmission mechanism 81, and the radial transmission mechanism 82 is mounted on the upper surface of the transition plate. The radial transmission mechanism 82 is also an electric lead screw slide, and its movement direction is the same as that of the axial transmission mechanism 81. The directions of motion are perpendicular to each other on the horizontal plane. A height adjustment mechanism 83 is vertically mounted on the side of the slide of the radial transmission mechanism 82. The height adjustment mechanism 83 is driven by a servo motor and a ball screw to achieve lifting and lowering motion. A rotating mechanism 84 is mounted on the side of the slide of the height adjustment mechanism 83. The rotating mechanism 84 contains a hollow reducer, with its output flange facing downwards. A dust collector 85 is fixedly mounted on the side of the housing of the rotating mechanism 84 via a bracket. The dust collector 85 is a negative pressure collection device with an internal filter cartridge. Its air inlet extends through a universal bamboo-joint tube to the vicinity of the welding head of the laser welder 86. The main body of the laser welder 86... Part of the laser welder 86 is mounted on the output flange of the rotating mechanism 84 via a clamp, allowing it to oscillate or rotate continuously in the vertical plane along with the output shaft of the rotating mechanism 84. The tail of the laser welder 86 is connected to a feed pipe 87, which supplies shielding gas or auxiliary welding wire to the weld pool. During processing, after the delivery assembly 6 fixes the switchgear components to be welded in the working position of the staggered processing assembly 7, the power control box 11 coordinates and controls the axial transmission mechanism 81, radial transmission mechanism 82, and height adjustment mechanism 83 to move the laser welder 86 to the welding position according to the preset welding trajectory program. Above the starting point, the excitation source inside the laser generates a high-energy laser beam, which is transmitted through an optical fiber to the welding head and focused on the weld. If the weld is circular, the rotating mechanism 84 drives the laser welder 86 to slowly rotate around the center of the weld. At the same time, the height adjustment mechanism 83 can be finely adjusted to adapt to the slight height changes of the weld. During the welding process, the negative pressure fan inside the dust collector 85 works continuously, sucking the high-temperature fumes and spatter generated during welding into the air intake. After filtration, clean air is discharged, protecting the optical devices and moving parts inside the main housing 1. The feed pipe 87 blows inert gas when needed to isolate the air and prevent the weld from oxidizing.

[0037] The delivery component 6 consists of a delivery track 60 and a connecting base 62. The two delivery tracks 60 are respectively set on one side of the two progressive delivery components 3. The delivery slider 61 is slidably mounted on the delivery track 60. The connecting base 62 is installed on the top of the delivery slider 61. The top of the connecting base 62 is provided with a back plate 621. An electric telescopic cylinder 622 is movably hinged on the back plate 621. A processing top plate 63 is movably hinged on the connecting base 62 through a hinge block 632. The processing top plate 63 is hinged to the output end of the electric telescopic cylinder 622. A limit block 631 is fixedly connected to one side of the processing top plate 63. A sliding block 65 is slidably mounted inside the processing top plate 63. A guide slider 651 is provided at the bottom of the sliding block 65. The guide slider 651 is slidably mounted inside the processing top plate 63. Limiting blocks 633 are provided at the top of both the sliding block 65 and the processing top plate 63. At least two elastic dampers 652 are connected between the processing top plate 63 and the sliding block 65. Top contact points 653 are provided on both sides of the sliding block 65. A rotator 64 is installed on the top of the machining top plate 63. The output end of the rotator 64 is connected to a coaxially arranged rotating plate 641 through a coupling. A hinge plate 642 is fixedly connected to the top of the rotating plate 641. A rotating block 643 is movably hinged to one end of the hinge plate 642. Two symmetrically arranged torsion springs 644 are arranged between the rotating block 643 and the hinge plate 642. A pressure block 645 is fixedly connected to one side of the rotating block 643. A positioning block 646 is provided at the bottom of the pressure block 645. A top head 647 is provided on one side of the pressure block 645. The top head 647 abuts against the machining top plate 63.

[0038] The delivery component 6 is initially in the receiving state. At this time, the piston rod of the electric telescopic cylinder 622 is in the retracted position. The processing top plate 63 is kept in a horizontal position that is roughly parallel to the delivery track 60 under the support of the limiting block 631. The extraction component 5 places the material to be processed on the processing top plate 63. The front and rear edges of the material abut against the area between the limiting block 633 at the front end of the processing top plate 63 and the limiting block 633 at the front end of the sliding block 65. At this time, the material has not yet been clamped. The sliding block 65 is in a relatively rearward initial position under the action of the elastic damping 652. Subsequently, the rotator 64 receives a control command and begins to rotate. Its output end drives the rotating plate 641 to rotate synchronously via a coupling. The rotational motion of the rotating plate 641 is transmitted to the hinge plate 642, which is vertically fixed to its upper surface. The hinge plate 642 swings in an arc around the axis of the rotator 64. Since the rotating block 643 and the hinge plate 642 are movably connected by a hinge shaft, and torsion springs 644 are symmetrically arranged between them, the rotating block 643 moves with the hinge plate 642 while being oscillating due to the torsion springs 644. The preload force keeps the material tilting downwards. When the rotating plate 641 rotates to a predetermined angle, the pressure block 645, formed by extending from one side of the rotating block 643, moves directly above the material. As the rotating unit 64 continues to rotate, the top head 647 on the rear side of the pressure block 645 contacts the top surface of the processing plate 63, forcing the rotating block 643 to overcome part of the elastic force of the torsion spring 644, causing the pressure block 645 to produce a definite downward displacement. During this downward pressing process, the lower surface of the pressure block 645 first passes through... The positioning block 646 fits against the top contour of the material, while the pressure block 645 applies a downward pressure component to the sliding block 65 located below it. The pressure component pushes the guide slider 651 at the bottom of the sliding block 65 to slide forward along the longitudinal groove inside the processing top plate 63. After overcoming the resistance of the elastic damping 652, the sliding block 65 moves forward a small distance, causing the limiting block 633 at its front end to move closer to the limiting block 633 at the front end of the processing top plate 63. The distance between the two limiting blocks 633 is reduced, thereby generating a clamping force on the front and rear edges of the material and firmly locking the material in the front and rear direction. At the same time, the positioning block 646 on the lower surface of the pressure block 645 presses down on the top of the material from top to bottom, realizing the fixation of the material in the height direction. The top contact points 653 on both sides of the sliding block 65 are in contact with the corresponding limiting surfaces on the processing top plate 63 at this time, which plays the role of limiting the sliding stroke and preventing the clamping force from being too large and damaging the material. Thus, the material has completed the horizontal positioning and clamping on the delivery component 6. After the material is reliably clamped, the delivery component 6 needs to change the material's orientation so that its inner hole is aligned with the positioning or grinding axis of the interlaced processing component 7. At this time, compressed air is introduced into the rodless chamber of the electric telescopic cylinder 622, and the piston rod extends outward. Since the tail end of the electric telescopic cylinder 622 is hinged to the back top plate 621 of the connecting base 62, and the end of its piston rod is hinged to the rear side of the lower surface of the processing top plate 63, the extension of the piston rod pushes the rear end of the processing top plate 63 upward. Under the action of the thrust, the processing top plate 63 rotates around the hinge. The long pin shaft of the receiving block 632 rotates, and the part of its front end that holds the material gradually lifts upward. As the piston rod continues to extend, the processing top plate 63 gradually swings from the initial horizontal state to a vertical state that is almost perpendicular to the horizontal plane, completing a posture flip of about ninety degrees. During this flip, the inner hole axis of the material changes from the vertical direction to the horizontal direction, facing the working area of ​​the interlaced processing component 7. The limiting block 631 limits the maximum downward swing angle of the processing top plate 63 at the beginning of the flip, ensuring that the starting position of the flip action is accurate. After the material is flipped to a vertical position, the lead screw nut at the bottom of the delivery slider 61 rotates under the drive of the servo motor, converting the rotational motion of the motor into linear displacement of the delivery slider 61 along the delivery track 60. The rolling friction pair formed between the circulating balls inside the delivery slider 61 and the delivery track 60 ensures smooth movement and positioning accuracy. The delivery slider 61 drives the entire clamping mechanism and the clamped material to move together towards the working area of ​​the interlaced processing component 7 through the connecting base 62. During the translation process, the inner hole of the material gradually approaches and finally fits onto the positioning shaft or grinding shaft, preparing for subsequent inner hole size inspection, grinding and cleaning, and laser welding processes.

[0039] The staggered processing assembly 7 consists of a processing base 71, a cleaning mechanism 78, and a positioning mechanism 79. The processing base 71 is located at the bottom of the welding assembly 8. The top of the processing base 71 is fixedly connected to a front guide rail 72, a rear guide rail 73, and a tail guide rail 74. A servo motor 75 is installed on one side of the rear guide rail 73, and several symmetrically arranged belt guide pulleys 76 are rotatably installed on the other side of the rear guide rail 73. A transmission belt 77 is commonly fitted on the several belt guide pulleys 76. The cleaning mechanism 78 is slidably mounted on the rear guide rail 73 and the tail guide rail 74, and the cleaning mechanism 78 is also connected to the drive belt 77. The cleaning mechanism 78 consists of a first belt connecting clamp 781 and a top sliding plate 782. The first belt connecting clamp 781 is connected to the transmission belt 77. The top sliding plate 782 is slidably mounted on the rear guide rail 73 and the tail guide rail 74 and is connected to the first belt connecting clamp 781. The positioning mechanism 79 is slidably mounted on the rear guide rail 73 and the front guide rail 72, and the positioning mechanism 79 is also connected to the transmission belt 77. The positioning mechanism 79 consists of a V-shaped guide rail 790, a second belt connecting clamp 791, and a middle slide plate 792. The V-shaped guide rail 790 is located between the front guide rail 72 and the rear guide rail 73. The second belt connecting clamp 791 is connected to the transmission belt 77. The middle slide plate 792 is slidably mounted on the front guide rail 72 and the rear guide rail 73 and is connected to the second belt connecting clamp 791. At least four symmetrically arranged telescopic shafts 793 are slidably mounted inside the middle slide plate 792. The top of the telescopic shafts 793 is fixedly connected to a top mounting plate 794. The bottom of the top mounting plate 794 is fixedly connected to a connecting guide wheel 795. The connecting guide wheel 795 is slidably mounted inside the V-shaped guide rail 790.

[0040] The staggered processing assembly 7 is located at the bottom of the welding assembly 8 and consists of a processing base 71, a cleaning mechanism 78, and a positioning mechanism 79. The processing base 71 is a large-sized metal base plate that has been precision machined and is fixed to the inside of the main housing 1 by anchor bolts. On the top plane of the processing base 71, three parallel guide rails are fixedly installed by screws, namely the front guide rail 72, the rear guide rail 73, and the tail guide rail 74. At one end of the outer wall of the rear guide rail 73, a servo motor 75 is installed, and its output shaft extends into the inner side of the rear guide rail 73 through the mounting plate. On the other inner wall of the rear guide rail 73, several symmetrically arranged belt guide pulleys 76 are rotatably installed. A closed-loop transmission belt 77 is tightly fitted between the output synchronous pulley of the servo motor 75 and each belt guide pulley 76. The cleaning mechanism 78 consists of a first belt connecting clamp 781 and a top sliding plate 782. The first belt connecting clamp 781 is a metal pressure block with toothed grooves, which clamps and connects the upper belt of the drive belt 77 to the top sliding plate 782 with screws. The top sliding plate 782 is a cross-type slide, and its bottom slider is simultaneously slidably mounted on the rear guide rail 73 and the tail guide rail 74. The bottom of the first belt connecting clamp 781 and the top sliding plate 782 are rigidly connected by screws. When the servo motor 75 drives the drive belt 77 to rotate, the first belt connecting clamp 781 drives the entire cleaning mechanism 78 to move linearly along the rear guide rail 73 and the tail guide rail 74. The positioning mechanism 79 consists of a V-shaped guide rail 790, a second belt connecting clamp 791, and a middle sliding plate 792. The V-shaped guide rail 790 is a track plate with a V-shaped cross-section groove, which is fixedly installed on the upper surface of the machining seat 71 between the front guide rail 72 and the rear guide rail 73. The second belt connecting clamp 791 is also clamped and fixed on the lower layer of the transmission belt 77. The bottom slider of the middle sliding plate 792 is slidably mounted on the front guide rail 72 and the rear guide rail 73, and its bottom is connected to the second belt connecting clamp 791. Since the cleaning mechanism 78 is connected to the upper layer of the transmission belt 77, and the positioning mechanism 79 is connected to the lower layer of the transmission belt 77, the positioning mechanism 79 is connected to the lower layer of the transmission belt 77. Below the belt 77, when the servo motor 75 rotates, these two sets of mechanisms will move alternately along the guide rail in opposite or the same speed. Inside the middle slide plate 792, at least four symmetrically arranged telescopic shafts 793 are vertically slidably mounted. The outer cylindrical surface of the telescopic shafts 793 cooperates with the linear bearings on the middle slide plate 792, allowing them to slide smoothly up and down. The tops of the four telescopic shafts 793 are all fixedly connected to a top mounting plate 794 by screws. A set of connecting guide wheels 795 is mounted on the bottom center of the top mounting plate 794 through a bearing seat. The connecting guide wheels 795 fit precisely into the grooves of the V-shaped guide rail 790 and roll with it. In a coordinated manner, when the servo motor 75 drives the middle slide plate 792 to move horizontally via the belt, the up-and-down movement of the connecting guide wheel 795 within the V-shaped track forces the top mounting plate 794, along with the telescopic shaft 793, to move up and down relative to the middle slide plate 792. By utilizing the power of the horizontal transmission, the positioning mechanism 79 is automatically raised and lowered when it moves to different horizontal positions, eliminating the need for an additional independent lifting cylinder. In the welding process of switchgear, the staggered processing component 7, through the differential connection of the upper and lower belts, completes the alternation of the positioning shaft and the grinding shaft at the workstation, providing the delivery component 6 with a dual-station continuous operation condition of first positioning and measurement, and then grinding and cleaning.

[0041] The cleaning mechanism 78 also includes a rotating host 783, which is mounted on the top of the top slide plate 782. An inner hole grinding shaft 784 is installed at the output end of the rotating host 783. The positioning mechanism 79 also includes a positioning feedback unit 796, which is mounted on top of the top mounting plate 794; The positioning feedback device 796 consists of a mounting bracket 7961 and a feedback box 7963. The mounting bracket 7961 and the feedback box 7963 are coaxially mounted on the top of the top mounting plate 794. Four centering guide wheels 7962 are evenly distributed and rotated inside the mounting bracket 7961. A tail contactor 7964 is fixedly connected inside the feedback box 7963. A damping top block 7966 is slidably assembled inside the feedback box 7963. Feedback contactors 7967 are installed on both sides of the damping top block 7966. A positioning shaft 7965 is fixedly connected to one side of the damping top block 7966. The positioning shaft 7965 passes through the interior of the mounting bracket 7961 and contacts the centering guide wheel 7962.

[0042] The cleaning mechanism 78 also includes a rotating host 783, which is a vertically mounted high-speed servo motor. Its housing is vertically fixed to the upper surface of the top slide plate 782 via a flange. The output shaft of the rotating host 783 extends downward, and an inner hole grinding shaft 784 is clamped at its shaft end via an elastic chuck. Depending on the material of the inner hole of the material, the surface of the inner hole grinding shaft 784 may be coated with diamond abrasive or wrapped with industrial scouring pad. In the cleaning process, when the top slide plate 782 moves the rotating host 783 to the processing station, the rotating host 783 is energized and rotates at high speed, driving the inner hole grinding shaft 784 to perform rotary grinding in the inner hole of the material to remove the oxide scale and minor deformation of the inner hole edge after welding. The positioning mechanism 79 also includes a positioning feedback device 796, which is a key component for realizing automatic detection of the inner hole size. The positioning feedback device 796 is installed on the upper surface of the top mounting plate 794. Its specific structure consists of two parts: a mounting frame 7961 and a feedback box 7963. The mounting frame 7961 is a circular shell, and the two are coaxially connected to the top mounting plate 794 by screws. Inside the cavity of the mounting frame 7961, four centering guide wheels 7962 are evenly distributed and rotated at ninety degrees around the circumference. The centering guide wheels 7962 have an arc-shaped groove in the middle of their wheel bodies. The grooves of the four wheels together form a central channel. Inside the feedback box 7963, a tail contact is fixedly installed at one end near the mounting frame 7961. The contactor 7964, specifically the tail contactor 7964, is a microswitch. Inside the feedback box 7963, a damping block 7966 is slidably mounted. The space between the outer wall of the damping block 7966 and the inner wall of the feedback box 7963 is filled with viscous damping grease, generating resistance during sliding. A feedback contactor 7967, a sensor with contacts, is mounted on each side of the damping block 7966 to detect the forward and backward displacement of the damping block 7966 within the box. A slender positioning shaft 7965 is fixedly connected to the center of the side of the damping block 7966 facing the mounting bracket 7961. The positioning shaft 7965 passes through the central hole of the mounting bracket 7961 and extends from the central channel of the four centering guide wheels 7962. In the free state, the positioning shaft 7965 remains stationary due to the damping effect of the damping block 7966. When the delivery component 6 moves the inner hole of the material toward the positioning shaft 7965, if the inner hole diameter is larger than the positioning shaft 7965 diameter, the positioning shaft 7965 will be inserted smoothly, the damping block 7966 will not be subjected to axial thrust, and the feedback toucher 7967 will not send a signal. If the inner hole of the material is smaller than the positioning shaft 7965 due to welding deformation or processing error, the insertion of the positioning shaft 7965 will be obstructed. The material will convert the guiding force of the centering guide wheel 7962 into an axial thrust on the positioning shaft 7965 through leverage. At this time, the thrust overcomes the damping of the damping block 7966, causing the damping block 7966 to move backward a small distance. This movement first triggers the feedback toucher 7967, which sends an alarm signal to the power control box 11 that the inner hole is too small. The control box then stops the feeding action of the delivery component 6 and commands it to retract. If the thrust continues to increase, the damping block 7966 will eventually touch the tail toucher 7964, which will send an extreme position stop signal, forcing the equipment to stop urgently to prevent damage to the positioning shaft.

[0043] Welding method for continuous welding apparatus used in switchgear; S1. Material loading and initial positioning: The omnidirectional robotic arm 51 of the extraction component 5 grabs the material to be processed from the progressive conveying component 3 at the material input end and places it on the processing top plate 63 of the delivery component 6; the electric telescopic cylinder 622 drives the processing top plate 63 and the sliding block 65 to clamp the two sides of the material, and the rotator 64 drives the pressure block 645 to press down, so that the positioning block 646 cooperates with the limiting block 633 to achieve the initial fixation of the material; S2. Material is delivered to the first station for internal hole positioning and dimensional measurement: The delivery slider 61 slides along the delivery track 60 to feed the material in the clamped state into the working area of ​​the interleaved processing component 7 and align the inner hole of the material with the positioning shaft 7965 of the positioning mechanism 79; the top mounting plate 794 rises under the drive of the telescopic shaft 793, so that the centering guide wheel 7962 of the positioning feedback device 796 contacts the inner hole of the material, and with the cooperation of the V-shaped guide track 790 and the connecting guide wheel 795, the positioning shaft 7965 automatically centers and inserts into the inner hole of the material; S3. Inner hole size inspection and pass / fail judgment: During the insertion of the positioning shaft 7965, if the inner diameter is smaller than that of the positioning shaft 7965, the damping block 7966 will be forced to move backward, triggering the feedback toucher 7967 and sending a dimension non-compliance signal to the control system. Based on this signal, the control system will control the delivery component 6 to move the material back to the initial position along the delivery track 60, and the extraction component 5 will remove the non-compliance material. If the inner diameter is acceptable, the positioning shaft 7965 will be fully inserted and the feedback toucher 7967 will not be triggered, thus completing the inner diameter confirmation. S4. After positioning is completed, the delivery component returns and the workstation switches alternately: After the positioning step is completed, the delivery component 6 releases the clamp on the material and slides back to the initial position along the delivery track 60; the servo motor 75 drives the cleaning mechanism 78 and the positioning mechanism 79 to move synchronously along the front guide rail 72, the rear guide rail 73 and the tail guide rail 74 through the transmission belt 77, so that the inner hole grinding shaft 784 of the cleaning mechanism 78 and the positioning shaft 7965 of the positioning mechanism 79 complete the position exchange at the material processing station; S5. The material is delivered to the welding station for laser welding: After the workstation switch is completed, the delivery component 6 slides above the material again, re-clamps the qualified material and removes it from the positioning shaft 7965. Then the delivery slider 61 moves the material to the welding station below the welding component 8. The axial transmission mechanism 81, radial transmission mechanism 82 and height adjustment mechanism 83 of the welding component 8 move the laser welder 86 to the welding position above the material. The rotation mechanism 84 adjusts the posture of the laser welder 86. The dust collector 85 collects welding fumes at the same time. The laser welder 86 completes the welding of the part of the material to be welded. S6. The material is delivered to the grinding station for internal hole grinding and cleaning: After welding is completed, the delivery component 6 moves the material back to the area where the interleaved processing component 7 is located. At this time, the servo motor 75 drives the transmission belt 77 again to make the cleaning mechanism 78 and the positioning mechanism 79 move alternately, switching the inner hole grinding shaft 784 to the processing station. The delivery component 6 aligns the inner hole of the welded material with the inner hole grinding shaft 784 and fits it in. The top slide plate 782 drives the rotating host 783 and the inner hole grinding shaft 784 to rise and enter the inner hole of the material. The rotating host 783 drives the inner hole grinding shaft 784 to rotate, grinding and cleaning the oxide scale and minor deformation on the edge of the inner hole caused by welding. S7. Finished Product Output: After grinding and cleaning, the delivery component 6 removes the finished product from the area of ​​the interlaced processing component 7 and flips it back to a horizontal position. The omnidirectional robotic arm 51 in the middle of the extraction component 5 grabs the finished product and transfers it to the progressive conveying component 3 at the finished product output end. After progressive conveying and linear conveying, it is sent out of the operating port of the main box 1 to complete the continuous welding process.

[0044] Working principle: The material is first put into the vibrating screen plate 41 of the vibrating screen assembly 4 located inside the operating port of the main box 1. The vibrating motor at the bottom of the vibrating screen plate 41 works to generate high frequency low amplitude torsional vibration, which forces the material in the plate to climb along the spiral track and automatically arrange itself into a line, and enter the pick-up box 43 through the output port 42; the lateral cylinder 44 pushes the pick-up slide frame 45 to push the single piece of material laterally to the conveyor belt 23 of the linear conveying assembly 2 at the material input end; the conveyor motor 22 drives the conveyor belt 23 to convey the material forward along the conveyor base 21 until the material reaches the predetermined grab position at the end of the conveyor belt 23; At this time, the omnidirectional robotic arm 51 in the extraction component 5 located on the material input end side, under the auxiliary guidance of the visual recognition device 91 and the lighting lamp 92 of the visual monitoring component 9, drives the flexible gripper 52 to descend and grab the material on the conveyor belt 23. Then the omnidirectional robotic arm 51 rotates and moves, placing the material in the foremost positioning groove formed by several spaced storage pieces 32 on the top of the advancing box 31 of the advancing conveying component 3 at the material input end. Subsequently, the axial telescopic cylinder 33 on one side of the advancing box 31 drives the sliding plate 34 to reciprocate, and in conjunction with the lifting cylinder 35, drives the lifting plate 36 to advance the material step by step between adjacent positioning slots until the material reaches the end of the advancing box 31; the centering cylinder 37 pushes the material to the side reference surface to achieve precise positioning, while the air blowing port 38 blows air upward through the through slot to clean the debris at the bottom of the material. On the other side of the material input end, the omnidirectional robotic arm 51 of the extraction component 5, guided by vision, once again grasps the material at the end of the delivery box 31 and places it on the processing top plate 63 of the delivery component 6; the rotator 64 in the delivery component 6 drives the rotating plate 641 to rotate, which drives the pressure block 645 to swing through the hinge plate 642, the rotating block 643 and the torsion spring 644. The top head 647 abuts against the processing top plate 63, causing the pressure block 645 to press down. The positioning block 646 fits against the top of the material and pushes the sliding block 65 to overcome the elastic damping 652. Sliding forward along the guide slider 651, the two limit blocks 633 clamp the front and rear edges of the material to complete the initial fixation in a horizontal position; then the piston rod of the electric telescopic cylinder 622 extends, pushing the processing top plate 63 to rotate 90 degrees around the long pin shaft of the hinge block 632, so that the material flips from a horizontal position to a vertical position, with the inner hole axis facing the working area of ​​the interlaced processing component 7; the delivery slider 61 moves along the delivery track 60 under the drive of the servo motor drive screw, sending the clamped material into the positioning station of the interlaced processing component 7; In the interleaved processing assembly 7, the servo motor 75 drives the cleaning mechanism 78 and the positioning mechanism 79 simultaneously via the transmission belt 77 and the belt guide pulley 76. The middle slide plate 792 of the positioning mechanism 79 moves along the front guide rail 72 and the rear guide rail 73. The connecting guide wheel 795 rolls in the V-shaped guide rail 790, causing the telescopic shaft 793 to drive the top mounting plate 794 to rise. The positioning shaft 7965 of the positioning feedback device 796 is inserted into the inner hole of the material under the guidance of the centering guide wheel 7962. If the inner hole size is smaller than the diameter of the positioning shaft 7965, the damping top block 7966 is triggered by the force to move backward. Feedback contactor 7967, power control box 11 controls delivery component 6 to retract, and middle extraction component 5 removes unqualified material; if the size is qualified, positioning shaft 7965 is fully inserted and tail contactor 7964 is not triggered, completing the inner hole size confirmation; after positioning, delivery component 6 releases material and retracts to the initial position along delivery track 60, servo motor 75 drives transmission belt 77 to make cleaning mechanism 78 and positioning mechanism 79 move alternately, and the inner hole grinding shaft 784 of cleaning mechanism 78 and positioning shaft 7965 of positioning mechanism 79 are exchanged at the processing station; The delivery component 6 feeds again, clamps the qualified material and removes it from the positioning shaft 7965. Then, the delivery slider 61 moves the material to the welding station below the welding component 8. The axial transmission mechanism 81, radial transmission mechanism 82 and height adjustment mechanism 83 of the welding component 8 work together to move the laser welder 86 to the welding position above the material. The rotation mechanism 84 adjusts the welding posture, the dust collector 85 collects the fumes simultaneously, the feed pipe 87 delivers protective gas, and the laser welder 86 completes laser welding on the part of the material to be welded. After welding, the delivery component 6 moves the material back to the area where the staggered processing component 7 is located. At this time, the servo motor 75 drives the transmission belt 77 again to make the cleaning mechanism 78 and the positioning mechanism 79 move alternately, and switch the inner hole grinding shaft 784 to the processing station. The delivery component 6 aligns the inner hole of the welded material with the inner hole grinding shaft 784 and inserts it. The top slide plate 782 drives the rotating host 783 and the inner hole grinding shaft 784 to rise and enter the inner hole of the material. The rotating host 783 drives the inner hole grinding shaft 784 to rotate, grinding and cleaning the oxide scale and minor deformation on the edge of the inner hole caused by welding, restoring the dimensional accuracy of the inner hole. After grinding and cleaning, the delivery component 6 removes the finished product from the interlaced processing component 7 and flips it back to a horizontal position. The omnidirectional robotic arm 51 in the middle of the extraction component 5 grabs the finished product and transfers it to the positioning slot of the progressive conveying component 3 at the finished product output end. The finished product is progressively advanced to the end through the progressive box 31, and then the conveyor belt 23 of the linear conveying component 2 at the output end transports the finished product towards the parts input port 13 of the operation box 12, and finally sends it out of the main box 1. The entire continuous welding process of the switchgear is completed.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous welding apparatus for switchgear, comprising a main housing (1), characterized in that: The conveying unit (100) is located at the manual operation end of the main box (1) and is used to send the material to be processed into the main box (1) and send the finished product out of the main box (1). The conveying unit (100) consists of a vibrating screen assembly (4), two linear conveying assemblies (2), two progressive conveying assemblies (3), and three extraction assemblies (5); The vibrating screen assembly (4) is located inside the operating port of the main box (1). The vibrating screen assembly (4) is used for conveying materials. The two linear conveying assemblies (2) are symmetrically arranged on both sides of the operating port of the main box (1). The two linear conveying assemblies (2) are used for conveying materials and finished products respectively. The two progressive conveying assemblies (3) are respectively located on one side of the two linear conveying assemblies (2). The two progressive conveying assemblies (3) are used for conveying materials and finished products respectively. The three extraction assemblies (5) are respectively located on both sides and in the middle of the two progressive conveying assemblies (3). The extraction assemblies (5) are used for placing materials and finished products. A processing unit (200) is disposed inside the main housing (1) and is used to process materials; The processing unit (200) consists of a welding assembly (8), an interlaced processing assembly (7), and two delivery assemblies (6); The welding assembly (8) is located inside the main housing (1). The welding assembly (8) is used for welding materials. The staggered processing assembly (7) is located at the bottom of the welding assembly (8). The two delivery assemblies (6) are respectively located at the processing ends of the two progressive conveying assemblies (3). The delivery assemblies (6) are used for processing, fixing and conveying materials. The interlaced processing assembly (7) consists of a processing base (71), a cleaning mechanism (78), and a positioning mechanism (79). The processing base (71) is located at the bottom of the welding assembly (8). The top of the processing base (71) is fixedly connected to a front guide rail (72), a rear guide rail (73), and a tail guide rail (74). A servo motor (75) is installed on one side of the rear guide rail (73), and several symmetrically arranged belt guide pulleys (76) are rotatably installed on the other side of the rear guide rail (73). A transmission belt (77) is sleeved on several belt guide pulleys (76), and the transmission belt (77) is also sleeved on the output synchronous pulley of the servo motor (75). The cleaning mechanism (78) is slidably mounted on the rear guide rail (73) and the tail guide rail (74), and the cleaning mechanism (78) is also connected to the transmission belt (77); The cleaning mechanism (78) consists of a first belt connecting clamp (781) and a top sliding plate (782). The first belt connecting clamp (781) is connected to the transmission belt (77). The top sliding plate (782) is slidably mounted on the rear guide rail (73) and the tail guide rail (74) and is connected to the first belt connecting clamp (781). The positioning mechanism (79) is slidably mounted on the rear guide rail (73) and the front guide rail (72), and the positioning mechanism (79) is also connected to the transmission belt (77); The positioning mechanism (79) consists of a V-shaped guide rail (790), a second belt connecting clamp (791), and a middle sliding plate (792). The V-shaped guide rail (790) is located between the front guide rail (72) and the rear guide rail (73). The second belt connecting clamp (791) is connected to the transmission belt (77). The middle sliding plate (792) is slidably mounted on the front guide rail (72) and the rear guide rail (73) and is connected to the second belt connecting clamp (791). At least four symmetrically arranged telescopic shafts (793) are slidably mounted inside the middle sliding plate (792). The top of several telescopic shafts (793) is fixedly connected to a top mounting plate (794). The bottom of the top mounting plate (794) is fixedly connected to a connecting guide wheel (795). The connecting guide wheel (795) is slidably mounted inside the V-shaped guide rail (790). The cleaning mechanism (78) also includes a rotating host (783), which is mounted on the top of the top slide plate (782), and an inner hole grinding shaft (784) is installed at the output end of the rotating host (783). The positioning mechanism (79) further includes a positioning feedback device (796) which is mounted on the top of the top mounting plate (794); The positioning feedback device (796) consists of a mounting frame (7961) and a feedback box (7963). The mounting frame (7961) and the feedback box (7963) are coaxially mounted on the top of the top mounting plate (794). The mounting frame (7961) has four centering guide wheels (7962) evenly distributed in a circle inside. The feedback box (7963) has a tail contactor (7964) fixedly connected inside. The feedback box (7963) has a damping top block (7966) slidably assembled inside. Feedback contactors (7967) are installed on both sides of the damping top block (7966). A positioning shaft (7965) is fixedly connected to one side of the damping top block (7966). The positioning shaft (7965) passes through the interior of the mounting frame (7961) and contacts the centering guide wheel (7962). The positioning shaft (7965) is used to position the material by engaging with the inner hole of the material; the feedback toucher (7967) is used to detect the forward and backward displacement of the damping block (7966) within the feedback box (7963); when the delivery component (6) drives the inner hole of the material to fit into the positioning shaft (7965), and the diameter of the inner hole of the material is smaller than the diameter of the positioning shaft (7965), causing the insertion of the positioning shaft (7965) to be obstructed, the positioning shaft (7965) is subjected to force and drives the damping block (7966) to move backward, triggering the feedback toucher (7967) to issue a dimension non-compliance signal.

2. The continuous welding apparatus for switchgear according to claim 1, characterized in that, The main housing (1) is composed of a power control box (11) and an operation box (12). The operation box (12) and the power control box (11) are connected to each other. A parts input port (13) is provided on one side of the operation box (12). A visual monitoring component (9) is also provided on the top inner wall of the main housing (1). The visual monitoring component (9) consists of several visual identifiers (91) and lighting lamps (92). Several visual identifiers (91) are respectively located on the top of the extraction component (5) and the interleaved processing component (7). Several lighting lamps (92) are equidistantly distributed on the top inner wall of the main housing (1).

3. The continuous welding apparatus for switchgear according to claim 2, characterized in that, The linear conveying assembly (2) consists of a conveying base (21), which is located on top of the part input port (13). A conveying motor (22) is installed on one side of the conveying base (21), and a conveyor belt (23) is provided inside the conveying base (21). The conveying motor (22) is used to drive the conveyor belt (23).

4. The continuous welding apparatus for switchgear according to claim 1, characterized in that, The progressive conveying assembly (3) consists of a progressive box (31) and several spacer storage plates (32). The progressive box (31) is located on one side of the linear conveying assembly (2). Several spacer storage plates (32) are evenly distributed on the top of the progressive box (31). An axial telescopic cylinder (33) is installed on one side of the progressive box (31). A sliding plate (34) is installed at the output end of the axial telescopic cylinder (33). Two symmetrically arranged lifting cylinders (35) are provided on the top of the sliding plate (34). A lifting plate (36) is installed at the output end of the two lifting cylinders (35). A centering cylinder (37) is installed on one side of the end of the progressive box (31), and an air inlet (38) is provided at the bottom of the end of the progressive box (31). A through groove is provided on the progressive box (31) at the air inlet (38).

5. The continuous welding apparatus for switchgear according to claim 1, characterized in that, The vibrating screen assembly (4) consists of a vibrating screen plate (41) and a dispensing box (43). The vibrating screen plate (41) is located on one side of the linear conveying assembly (2) at the material input end. An output port (42) is provided on one side of the vibrating screen plate (41). The dispensing box (43) is installed on one side of the material input end. A lateral cylinder (44) is installed on one side of the dispensing box (43). A dispensing slide frame (45) is installed at the output end of the lateral cylinder (44). The extraction component (5) consists of a universal robotic arm (51) and a flexible gripper (52). The universal robotic arm (51) is respectively located on both sides and the middle of the two progressive conveying components (3), and the flexible gripper (52) is installed at the end of the universal robotic arm (51).

6. The continuous welding apparatus for switchgear according to claim 1, characterized in that, The welding assembly (8) consists of an axial transmission mechanism (81), a radial transmission mechanism (82), a height adjustment mechanism (83), a rotation mechanism (84), a dust collector (85), and a laser welder (86); The axial transmission mechanism (81) is installed on one side of the interlaced processing assembly (7), the radial transmission mechanism (82) is installed on the top of the axial transmission mechanism (81), the height adjustment mechanism (83) is installed on one side of the axial transmission mechanism (81), the rotating mechanism (84) is installed on one side of the height adjustment mechanism (83), the dust collector (85) is installed on the side of the rotating mechanism (84), the laser welder (86) is installed at the output end of the rotating mechanism (84), and the tail of the laser welder (86) is provided with a feed pipe (87).

7. The continuous welding apparatus for switchgear according to claim 1, characterized in that, The delivery component (6) consists of a delivery track (60) and a connecting base (62). The two delivery tracks (60) are respectively set on one side of the two progressive delivery components (3). A delivery slider (61) is slidably mounted on the delivery track (60). The connecting base (62) is installed on the top of the delivery slider (61). A back plate (621) is provided on the top of the connecting base (62). An electric telescopic cylinder (622) is movably hinged on the back plate (621). A processing top plate (63) is movably hinged on the connecting base (62) through a hinge block (632). The processing top plate (63) is hinged to the output end of the electric telescopic cylinder (622). A limit block (631) is fixedly connected to one side of the processing top plate (63). The processing top plate (63) is internally fitted with a sliding block (65), and a guide slider (651) is provided at the bottom of the sliding block (65). The guide slider (651) is slidably fitted inside the processing top plate (63). Limiting blocks (633) are provided at the top of both the sliding block (65) and the processing top plate (63). At least two elastic dampers (652) are connected between the processing top plate (63) and the sliding block (65). Top contact points (653) are provided on both sides of the sliding block (65). A rotator (64) is installed on the top of the processing top plate (63). The output end of the rotator (64) is connected to a coaxially arranged rotating plate (641) through a coupling. A hinge plate (642) is fixedly connected to the top of the rotating plate (641). A rotating block (643) is movably hinged to one end of the hinge plate (642). Two symmetrically arranged torsion springs (644) are provided between the rotating block (643) and the hinge plate (642). A pressure block (645) is fixedly connected to one side of the rotating block (643). A positioning block (646) is provided at the bottom of the pressure block (645). A top head (647) is provided on one side of the pressure block (645). The top head (647) is in contact with the processing top plate (63).

8. The welding method of the continuous welding apparatus for switchgear according to any one of claims 1-7, characterized in that, S1. Material loading and initial positioning: The omnidirectional robotic arm (51) of the extraction component (5) grabs the material to be processed from the progressive conveying component (3) at the material input end and places it on the processing top plate (63) of the delivery component (6); the electric telescopic cylinder (622) drives the processing top plate (63) and the sliding block (65) to clamp the two sides of the material, and the rotator (64) drives the pressure block (645) to press down, so that the positioning block (646) cooperates with the limiting block (633) to achieve the initial fixation of the material; S2. Material is delivered to the first station for internal hole positioning and dimensional measurement: The delivery slider (61) slides along the delivery track (60) to deliver the material in the clamped state into the working area of ​​the interleaved processing assembly (7) and align the inner hole of the material with the positioning shaft (7965) of the positioning mechanism (79); the top mounting plate (794) rises under the drive of the telescopic shaft (793) so that the centering guide wheel (7962) of the positioning feedback device (796) contacts the inner hole of the material. With the cooperation of the V-shaped guide track (790) and the connecting guide wheel (795), the positioning shaft (7965) automatically centers and inserts into the inner hole of the material. S3. Inner hole size inspection and pass / fail judgment: During the insertion of the positioning shaft (7965), if the inner diameter is smaller than the diameter of the positioning shaft (7965), the damping block (7966) will be forced to move backward, and the feedback toucher (7967) will be triggered, sending a dimension non-compliance signal to the control system. The control system will control the delivery component (6) to drive the material back to the initial position along the delivery track (60) according to the dimension non-compliance signal sent by the feedback toucher (7967), and the extraction component (5) will take away the non-compliance material. If the inner diameter is qualified, the positioning shaft (7965) will be fully inserted and the feedback toucher (7967) will not be triggered, thus completing the inner diameter confirmation. S4. After positioning is completed, the delivery component returns and the workstation switches alternately: After the positioning step is completed, the delivery component (6) releases the clamp on the material and slides back to the initial position along the delivery track (60); the servo motor (75) drives the cleaning mechanism (78) and the positioning mechanism (79) to move synchronously along the front guide rail (72), the rear guide rail (73) and the tail guide rail (74) through the transmission belt (77), so that the inner hole grinding shaft (784) of the cleaning mechanism (78) and the positioning shaft (7965) of the positioning mechanism (79) exchange positions at the material processing station; S5. The material is delivered to the welding station for laser welding: After the workstation switch is completed, the delivery component (6) slides to the top of the material again, re-clamps the qualified material and removes it from the positioning shaft (7965). Then the delivery slider (61) moves the material to the welding station below the welding component (8). The axial transmission mechanism (81), radial transmission mechanism (82) and height adjustment mechanism (83) of the welding component (8) move the laser welder (86) to the welding position above the material. The rotation mechanism (84) adjusts the posture of the laser welder (86). The dust collector (85) collects welding fumes at the same time. The laser welder (86) completes the welding of the part of the material to be welded. S6. The material is delivered to the grinding station for internal hole grinding and cleaning: After welding is completed, the delivery component (6) moves the material back to the area where the interleaved processing component (7) is located. At this time, the servo motor (75) drives the transmission belt (77) again to make the cleaning mechanism (78) and the positioning mechanism (79) move alternately, and switch the inner hole grinding shaft (784) to the processing station. The delivery component (6) aligns the inner hole of the welded material with the inner hole grinding shaft (784) and fits it in. The top slide plate (782) drives the rotating host (783) and the inner hole grinding shaft (784) to rise and enter the inner hole of the material. The rotating host (783) drives the inner hole grinding shaft (784) to rotate, and grinds and cleans the oxide scale and small deformations on the edge of the inner hole caused by welding. S7. Finished Product Output: After grinding and cleaning, the delivery component (6) moves the finished product out of the area of ​​the interlaced processing component (7) and flips it back to a horizontal position. The universal robotic arm (51) in the middle of the extraction component (5) grabs the finished product and transfers it to the progressive conveying component (3) at the finished product output end. After progressive conveying and linear conveying, it is sent out of the main box (1) operation port to complete the continuous welding process.

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