Welding device for butt joint automation

By integrating the design of dual synchronous welding heads and support and correction structures, the problems of flute height deviation and uneven thermal stress during corrugated plate welding were solved, achieving high-precision and stable welding of carriage doors, and improving welding efficiency and product quality.

CN121972873APending Publication Date: 2026-05-05NANTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANTONG UNIV
Filing Date
2026-03-16
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

During the automated welding process of the carriage door, the bending and forming structure of the corrugated plate leads to deviation in the corrugation height and warping. During welding, the weld has defects such as porosity and lack of fusion, which affect the sealing performance and structural strength. Furthermore, uneven distribution of thermal stress makes the weld area prone to cracking.

Method used

The corrugated sheet and frame are welded simultaneously on both sides using a dual synchronous welding head. The door is stably supported and its flatness is corrected by components such as support frame, connecting frame and supporting lifting parts, ensuring the uniformity and accuracy of the welding.

Benefits of technology

It effectively disperses welding heat input, reduces residual stress in the weld area, improves welding efficiency, and ensures welding quality and service life of the carriage door.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of welding devices for butt joint automation, in particular to a welding device for butt joint automation, which comprises two welding heads for automatically welding a carriage door, and the two welding heads synchronously and automatically weld the carriage door; a supporting frame is further arranged on the outer side of the welding head, a supporting column is rotationally connected to the supporting frame, the supporting column is rotationally connected with the supporting frame, and a rotating piece used for driving the supporting column to rotate is arranged on the supporting frame. The supporting frame, the connecting frame and the matched supporting piece lamp structure form an integrated supporting and correcting structure, a groove of the matched supporting piece is accurately attached to the valley peak of the corrugated board, the warped corrugated board is pre-corrected through the supporting middle plate, the pushing and finishing plate and the jacking plate, the flatness error of the corrugated board is effectively reduced, and the flatness of the corrugated board is improved. The precision of the attaching gap between the frame and the corrugated board in the welding process is guaranteed, and a high-precision positioning reference is provided for automatic welding.
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Description

Technical Field

[0001] This invention relates to the field of welding equipment technology for automated docking, specifically to a welding equipment for automated docking. Background Technology

[0002] Currently, in the automated welding process for carriage doors, the conventional procedure is as follows: First, four metal frames are spliced ​​around the corrugated plate, and the splicing components are pre-fixed by spot welding. Then, the spot-welded assembly is placed on an automated welding workbench, where a single welding head completes the edge sealing welding between the corrugated plate and the frame.

[0003] However, due to the continuous bending and forming structure of corrugated sheets, problems such as flute height deviation and local warping are prone to occur during the bending process. After splicing, the edge of the corrugated sheet and the frame are poorly fitted, and spot welding pre-fixing cannot eliminate local gaps. This leads to defects such as porosity and lack of fusion in the weld during the final welding, affecting the sealing performance and structural strength of the carriage door. At the same time, when using a single welding head for single-sided welding, the heat is concentrated on one side of the base material, resulting in uneven distribution of thermal stress in the weld area. After cooling, residual tensile stress is easily generated. In addition, the carriage door is subjected to the impact and vibration of goods for a long time, and fatigue cracking is prone to occur in the stress concentration area of ​​the weld, reducing the service life of the product. Therefore, we propose a welding device for automated docking. Summary of the Invention

[0004] The purpose of this invention is to provide a welding apparatus for automated docking, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device for automated docking, comprising two welding heads for automated welding of carriage doors, wherein the two welding heads simultaneously perform automated welding of the carriage doors;

[0006] The welding head is also provided with a support frame on the outside, and a support column is rotatably connected to the support frame. The support column is rotatably connected to the support frame, and a rotating component is provided on the support frame for rotating the support column.

[0007] A connecting frame is fixedly connected to one end of the support column near the welding head. A fixed platform is fixedly connected to one side of the connecting frame, and a rotating shaft passes through the fixed platform. An adjusting component for adjusting the rotating shaft is provided on the fixed platform.

[0008] The rotating shaft is also connected to a supporting component, which is used to support the corrugated plate of the carriage door and to correct the flatness of the corrugated plate.

[0009] When this invention is used, the two welding heads allow for simultaneous welding of both sides of one side of the corrugated plate to the frame of the carriage door, thus ensuring the uniformity of the welding and preventing uneven distribution of thermal stress in the weld area.

[0010] Meanwhile, this invention, through its supporting frame, connecting frame, and cooperating lifting components, stably supports the corrugated plate and its frame of the carriage door. It can also rotate to the welding position of the two welding heads, enabling high-precision welding of the carriage door. Furthermore, before welding, it effectively corrects the flatness of the corrugated plate, and after correction, it facilitates welding.

[0011] Furthermore, the supporting component includes a connecting block, a supporting middle plate, and a limiting outer frame. There are two connecting blocks, which are respectively fixedly installed at both ends of the rotating shaft, and both connecting blocks are fixedly connected to the supporting middle plate.

[0012] The two ends of the lifting plate are fixedly connected to the two sides of the inner wall of the limiting frame, and movable welding joints are provided on both sides of the lifting plate and between it and the limiting frame.

[0013] The supporting plate has a continuous supporting groove on the side away from the connecting block, and the supporting groove cooperates with the bottom surface of the corrugated plate. The limiting outer frame has a limiting groove inside, and the limiting groove communicates with the supporting groove. The limiting groove is used to limit the frame of the carriage door.

[0014] The limiting outer frame is provided with a pressing and pushing component, which cooperates with the lifting groove to correct the corrugated plate on the lifting groove.

[0015] The inner sides of the limiting frame are also provided with movable lifting components, which can movably lift the edge of the corrugated plate by moving the welding joint.

[0016] Furthermore, the pressing and pushing component includes a first electric push rod, a synchronization plate, a pushing plate, and a pushing component. There are two first electric push rods, which are respectively fixedly installed on both sides of the outer side of the limiting frame. The output ends of the two first electric push rods are fixedly connected to the synchronization plate, which is located outside the lifting groove.

[0017] The pusher plate is provided in two parts, and the two pusher plates cooperate with the lifting groove to straighten the corrugated plate at the lifting groove.

[0018] The pusher is mounted on the synchronization plate and is used to synchronously drive the two push plates.

[0019] Furthermore, the push plate has a continuous mating groove on the side near the corrugated plate, the mating groove corresponds to the outer surface of the corrugated plate, and the ridge height of the mating groove is consistent with the ridge height of the corrugated plate.

[0020] Furthermore, limiting components are fixedly installed at both ends of the push plate. The limiting components include a limiting plate, a limiting rod, a limiting sleeve, and a moving block. The limiting plate is fixedly installed at one end of the push plate, one end of the limiting rod is fixedly connected to the limiting plate, and the limiting sleeve is slidably sleeved on the outside of the limiting rod.

[0021] The movable block is fixedly installed on the outside of the limiting sleeve. Limiting grooves are provided on both sides of the outer side of the limiting frame. One end of the movable block is slidably connected inside the limiting groove. Through the provided limiting components, the limiting effect on the movement of the push plate is achieved.

[0022] Furthermore, a clamping plate is fixedly installed on one side of the movable block inside the limiting groove, and a pressure sensor is also provided inside the limiting groove.

[0023] Furthermore, the movable lifting component includes a second electric push rod, a movable plate, a connecting member, and a lifting plate. The second electric push rod is fixedly installed on the outside of the limiting frame, and the output end of the second electric push rod passes through the limiting plate and is fixedly connected to the movable plate. The output end of the second electric push rod is slidably connected to the limiting frame, and the movable plate is slidably connected inside the limiting groove.

[0024] Two connectors are provided, which are located at both ends of the movable plate and are connected to the lifting plate. The movable lifting components enable the corrugated plate at the movable weld joint to be movably lifted.

[0025] Furthermore, the lifting plate has a continuous lifting groove on the side near the corrugated plate, and the lifting groove matches the shape of the corrugated plate.

[0026] Furthermore, the connecting component includes a connecting rod, a movable shaft, a reinforcing plate, and a limiting frame. One end of the connecting rod is rotatably connected to the movable plate via a pin, and the other end of the connecting rod is rotatably connected to the movable shaft. The movable shaft passes through the reinforcing plate, and one end of the reinforcing plate is fixedly connected to the lifting plate. The limiting frame is fixedly installed on one side inside the limiting groove, and the limiting frame is provided with an L-shaped limiting groove. The other end of the movable shaft slides through the L-shaped limiting groove. Through the provided connecting component, the function of connecting the lifting plate is realized.

[0027] Furthermore, the reinforcing plate is L-shaped and has reinforcing ribs inside, thereby ensuring the stability of the reinforcing plate connection.

[0028] This invention has at least the following beneficial effects:

[0029] 1. This invention achieves simultaneous welding on both sides of the connection between the corrugated plate and the frame by setting up dual synchronous welding heads. While welding is carried out simultaneously on both sides, the welding heat input is effectively dispersed, and the residual stress in the weld area is effectively reduced, avoiding the stress concentration cracking problem caused by single-head welding.

[0030] 2. The support frame, connecting frame and the supporting component of the present invention form an integrated support and correction structure. The groove of the supporting component is precisely fitted with the valley peak of the corrugated plate. The bending of the corrugated plate is pre-corrected by lifting the middle plate, pushing the straightening plate and lifting the top plate, which effectively reduces the flatness error of the corrugated plate and ensures the accuracy of the fit gap between the frame and the corrugated plate during the welding process, providing a high-precision positioning reference for automated welding.

[0031] 3. This invention integrates the support, straightening and welding stations, enabling double-sided welding to be completed without secondary clamping, effectively improving the welding efficiency of automated docking of carriage doors. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a side view of the overall structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the rotating component structure of the present invention;

[0035] Figure 4 For the present invention Figure 3 Enlarged structural diagram of region A in the middle;

[0036] Figure 5 This is a schematic diagram of the welding head structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the pushing component structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the limiting component structure of the present invention;

[0039] Figure 8 For the present invention Figure 7 Enlarged structural diagram of region B in the middle;

[0040] Figure 9 This is a schematic diagram of the pressure sensor structure of the present invention;

[0041] Figure 10 This is a schematic diagram of the bottom structure of the middle plate of the present invention;

[0042] Figure 11 This is a schematic diagram of the support groove structure of the present invention;

[0043] Figure 12 This is a schematic diagram of the limiting outer frame structure of the present invention;

[0044] Figure 13 This is a schematic diagram of the lifting plate structure of the present invention;

[0045] Figure 14 For the present invention Figure 13 A magnified structural diagram of region C in the middle.

[0046] In the diagram: 1-Welding head; 2-Support frame; 21-Connecting frame; 22-Support column; 3-Rotating component; 4-Fixed platform; 41-Rotating shaft; 5-Adjusting component; 51-Rotating motor; 52-First rotating gear; 53-Second rotating gear; 6-Matching lifting component; 61-Connecting block; 62-Lifting middle plate; 621-Lifting groove; 63-Limiting outer frame; 631-Limiting groove; 632-Limiting slot; 64-Moving welding joint; 7-Pressure pushing component; 71-First electric push rod; 72-Synchronization plate; 73-Pushing plate; 731-Matching groove; 74-Pushing component Components; 741-Positioning shaft; 742-Positioning plate; 743-Positioning rod; 744-Positioning block; 745-Gear transmission assembly; 746-Synchronous motor; 75-Limiting component; 751-Limiting plate; 752-Limiting rod; 753-Limiting sleeve; 754-Moving block; 7541-Pressure plate; 7542-Pressure sensor; 8-Moving lifting component; 81-Second electric push rod; 82-Moving plate; 83-Connecting component; 831-Connecting support rod; 832-Moving shaft; 833-Reinforcing plate; 834-Limiting frame; 84-Lifting plate; 841-Lifting groove. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Example 1

[0049] Please see Figures 1 to 3 A welding device for automated docking includes a welding head 1 for automated welding of a carriage door. In this invention, the welding head 1 is designed to be mounted on a welding robot to achieve precise welding between the frame of the carriage door and the corrugated plate. There are two welding heads 1, and the two welding heads 1 simultaneously perform automated welding of the carriage door.

[0050] A support frame 2 is also provided on the outside of the welding head 1. A support column 22 is rotatably connected to the support frame 2. The support column 22 is rotatably connected to the support frame 2. A rotating component 3 is provided on the support frame 2 for rotating the support column 22.

[0051] As a further supplementary explanation, the rotating component 3 includes a rotating motor, a first rotating gear, a second rotating gear, and a gear chain. As shown in Appendix 3 of the specification, the rotating motor is mounted on the support frame 2, and the output end of the rotating motor is fixedly connected to the first rotating gear. The first rotating gear is connected to the second rotating gear through the gear chain, and the second rotating gear is fixedly sleeved on the outside of one end of the support column 22.

[0052] Furthermore, by operating the rotary motor, the first rotary gear drives the second rotary gear to rotate through the gear chain. As the second rotary gear rotates, the support column 22 rotates further. As the support column 22 rotates, the connecting frame 21 rotates synchronously.

[0053] A connecting frame 21 is fixedly connected to one end of the support column 22 near the welding head 1. A fixed platform 4 is fixedly connected to one side of the connecting frame 21, and a rotating shaft 41 passes through the fixed platform 4. An adjusting component 5 for adjusting the rotating shaft 41 is provided on the fixed platform 4.

[0054] As a further supplementary explanation, the adjusting component 5 includes a rotating motor 51, a first rotating gear 52 and a second rotating gear 53. The rotating motor 51 is fixedly mounted on the fixed platform 4, and the output end of the rotating motor 51 is fixedly connected to the first rotating gear 52. The first rotating gear 52 is meshed with the second rotating gear 53, and the second rotating gear 53 is fixedly sleeved on the outside of the rotating shaft 41.

[0055] Then, by rotating the motor 51, the first rotating gear 52 drives the second rotating gear 53 to rotate. When the second rotating gear 53 rotates, the rotating shaft 41 rotates synchronously. When the rotating shaft 41 rotates, the supporting member 6 flips over.

[0056] Please see Figures 3 to 14 The rotating shaft 41 is also connected to a supporting member 6, which is used to support the corrugated plate of the carriage door and to correct the flatness of the corrugated plate.

[0057] The supporting component 6 includes a connecting block 61, a supporting middle plate 62, and a limiting outer frame 63. There are two connecting blocks 61, which are respectively fixedly installed at both ends of the rotating shaft 41. Both connecting blocks 61 are fixedly connected to the supporting middle plate 62.

[0058] The two ends of the supporting middle plate 62 are fixedly connected to the two sides of the inner wall of the limiting outer frame 63. The two sides of the supporting middle plate 62 and the limiting outer frame 63 are provided with movable welding ports 64. In this application, the movable welding ports 64 are provided so that the welding head 1 can be inserted into the movable welding ports 64 to perform stable welding between the corrugated plate and the frame.

[0059] A continuous lifting groove 621 is provided on the side of the supporting plate 62 away from the connecting block 61, and the lifting groove 621 mates with the bottom surface of the corrugated plate. The lifting groove 621 can precisely fit the arched structure of the corrugated plate, and by supporting it at the crest of the corrugated plate, it achieves physical limitation, prevents the corrugated plate from misaligning and falling, and at the same time provides stable support for the corrugated plate. The limiting outer frame 63 has a limiting groove 631 inside, and the limiting groove 631 is connected to the lifting groove 621. The limiting groove 631 is used to limit the frame of the carriage door.

[0060] Specific implementation process: When welding the carriage door, the spot-welded frame is placed into the limiting groove 631. At this time, the limiting groove 631 limits the frame. At the same time, the corrugated plate is placed in the supporting groove 621 of the supporting plate 62 to stabilize the corrugated plate in a horizontal state. Then, the corrugated plate and the frame are fixed by pressing and pushing the whole piece 7. Then, the adjusting piece 5 is rotated to make the limiting outer frame 63 drive the corrugated plate and the frame to the welding head 1 position. Then, by moving the two welding heads 1, they are moved to the moving welding port 64 to achieve high-precision welding of the inner wall of the corrugated plate and the frame.

[0061] The limiting outer frame 63 is provided with a pressing and pushing component 7, and the pressing and pushing component 7 cooperates with the lifting groove 621 to correct the corrugated plate on the lifting groove 621.

[0062] The inner sides of the limiting frame 63 are also provided with movable lifting parts 8, which can movably lift the edge of the corrugated plate through the movable welding joint 64.

[0063] The pressing and pushing component 7 includes a first electric push rod 71, a synchronization plate 72, a pushing plate 73, and a pushing component 74. There are two first electric push rods 71, which are respectively fixedly installed on both sides of the outer side of the limiting frame 63. The output ends of the two first electric push rods 71 ​​are fixedly connected to the synchronization plate 72. The synchronization plate 72 is located outside the lifting groove 621.

[0064] Two push plates 73 are provided, and the two push plates 73 cooperate with the lifting groove 621 to straighten the corrugated plate at the lifting groove 621;

[0065] The pusher 74 is mounted on the synchronization plate 72 and is used to synchronously drive the two push plates 73.

[0066] The push plate 73 has a continuous mating groove 731 on the side near the corrugated plate. The mating groove 731 corresponds to the outer surface of the corrugated plate, and the ridge height of the mating groove 731 is consistent with the ridge height of the corrugated plate.

[0067] Limiting components 75 are also fixedly installed at both ends of the push plate 73. The limiting components 75 include a limiting plate 751, a limiting rod 752, a limiting sleeve 753 and a moving block 754. The limiting plate 751 is fixedly installed at one end of the push plate 73, one end of the limiting rod 752 is fixedly connected to the limiting plate 751, and the limiting sleeve 753 is slidably sleeved on the outside of the limiting rod 752.

[0068] The movable block 754 is fixedly installed on the outside of the limiting sleeve 753. Limiting grooves 632 are provided on both sides of the outer side of the limiting frame 63. One end of the movable block 754 is slidably connected inside the limiting groove 632.

[0069] Specific implementation process: In this application, when the frame and corrugated plate are pressed together, the two first electric push rods 71 ​​retract simultaneously, thereby causing the synchronous plate 72 to drive the two push plates 73 to move along the direction of the corrugated plate until the mating groove 731 of the push plate 73 presses against the outer side of the corrugated plate. At this time, the limiting plates 751 at both ends of the push plate 73 simultaneously press and fix the frame, thereby ensuring that the frame is stably fixed at the limiting outer frame 63.

[0070] Subsequently, by operating the pusher 74, the two pusher plates 73 move in opposite directions, thereby moving and correcting the corrugated plate. With the corrugated plate supported by the lifting groove 621, the corrugated plate can be accurately corrected.

[0071] A pressure plate 7541 is fixedly installed on one side of the movable block 754 inside the limiting groove 632, and a pressure sensor 7542 is also provided inside the limiting groove 632.

[0072] Please see Figures 10 to 14 The movable lifting component 8 includes a second electric push rod 81, a movable plate 82, a connecting member 83, and a lifting plate 84. The second electric push rod 81 is fixedly installed on the outside of the limiting frame 63, and the output end of the second electric push rod 81 passes through the limiting plate 751 and is fixedly connected to the movable plate 82. The output end of the second electric push rod 81 is slidably connected to the limiting frame 63, and the movable plate 82 is slidably connected inside the limiting groove 631.

[0073] There are two connectors 83, which are located at both ends of the movable plate 82, and the two connectors 83 are connected to the lifting plate 84.

[0074] The lifting plate 84 has a continuous lifting groove 841 on the side near the corrugated plate, and the lifting groove 841 matches the shape of the corrugated plate.

[0075] The connector 83 includes a connecting rod 831, a moving shaft 832, a reinforcing plate 833, and a limiting frame 834. One end of the connecting rod 831 is rotatably connected to the moving plate 82 via a pin, and the other end of the connecting rod 831 is rotatably connected to the moving shaft 832. The moving shaft 832 passes through the reinforcing plate 833, and one end of the reinforcing plate 833 is fixedly connected to the lifting plate 84. The limiting frame 834 is fixedly installed on one side inside the limiting groove 631, and the limiting frame 834 is provided with an L-shaped limiting groove 632. The other end of the moving shaft 832 slides through the L-shaped limiting groove 632.

[0076] The reinforcing plate 833 is L-shaped and has reinforcing ribs inside.

[0077] Specific implementation process: In the initial state of this invention, the two lifting plates 84 are respectively located at the positions of the two movable welding ports 64, and the lifting grooves 841 on the top of the two positioning plates 742 are consistent in shape and size with the lifting grooves 621 of the supporting plate 62, and are on the same horizontal plane, thereby achieving full support for the corrugated plate. At the same time, when the two pushing plates 73 cooperate to correct the corrugated plate, the lifting plates 84 play the role of cooperating to lift the corrugated plate.

[0078] Furthermore, after correction, the two push plates 73 move towards each other, deviating from the moving weld joint 64 and stopping at the edge of the moving weld joint 64. Then, the corresponding clamping plate 7541 continuously clamps the pressure sensor 7542, and the pressure sensor 7542 continuously sends signals to the controller. The controller then sends a signal to the two second electric push rods 81. At this time, the two second electric push rods 81 operate synchronously. While the second electric push rods 81 are operating, they drive the moving plate 82 to move along the inside of the limiting groove 631. The moving plate 82 drives the connecting support rod 831 to move synchronously. The connecting support rod 831 then pulls the reinforcing plate 833 through the moving shaft 832. Since the reinforcing plate 833 is limited by the L-shaped limiting groove 632 of the limiting frame 834, the reinforcing plate 833 drives the lifting plate 84 to disengage from the moving welding port 64 until it moves into the inside of the limiting groove 631. At this time, only the welding joint between the corrugated plate to be welded and the frame is exposed at the moving welding port 64, thereby achieving precise docking between the corrugated plate and the frame. Subsequently, the two welding heads 1 automatically weld the corrected corrugated plate and the frame.

[0079] Example 2

[0080] Please see Figures 6 to 9Example 2 provides a further supplementary description of the pusher 74 in Example 1. Specifically, the pusher 74 includes a positioning shaft 741, a positioning plate 742, a positioning rod 743, and a positioning block 744. There are two positioning shafts 741, both of which are rotatably connected to the synchronization plate 72. The end of the positioning shaft 741 near the lifting plate 62 is fixedly connected to the positioning plate 742. The positioning plate 742 has two arc-shaped openings, and the positioning rod 743 slides through the arc-shaped openings. One end of the positioning rod 743 is fixedly connected to the positioning block 744. The positioning block 744 is L-shaped, and the two positioning blocks 744 are fixedly connected to the two pushing plates 73 respectively.

[0081] The synchronization plate 72 is also provided with a gear transmission assembly 745 and a synchronous motor 746. The gear transmission assembly 745 is used to synchronously drive the two positioning shafts 741, and the synchronous motor 746 is used to drive the gear transmission assembly 745.

[0082] The synchronous motor 746 operates, which in turn drives the two positioning shafts 741 to rotate synchronously relative to the synchronous plate 72 through the gear transmission assembly 745. When the positioning shafts 741 rotate, they drive the positioning plate 742 to rotate. The arc-shaped opening on the positioning plate 742 drives the positioning rod 743. At this time, due to the limitation of the push plate 73 at both ends by the limiting members 75, the two push plates 73 move in opposite directions to achieve the function of correcting the flatness of the corrugated plate. After correction, the two push plates 73 move towards each other and deviate from the moving weld joint 64, and stop at the edge of the moving weld joint 64. Then, through the cooperation of the push plate 73 and the supporting plate 62, the corrugated plate is pressed close to the edge.

[0083] Subsequently, the entire outer frame 63 is flipped to the welding position to cooperate with the welding head 1 for high-precision welding.

[0084] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding apparatus for automated docking, comprising a welding head (1) for automated welding of carriage doors, characterized in that: The welding head (1) is provided in two parts, and the two welding heads (1) simultaneously perform automated welding on the carriage door; The welding head (1) is also provided with a support frame (2) on the outside. A support column (22) is rotatably connected to the support frame (2). The support column (22) is rotatably connected to the support frame (2). A rotating component (3) is provided on the support frame (2) for rotating the support column (22). The support column (22) is fixedly connected to a connecting frame (21) at one end near the welding head (1). A fixed platform (4) is fixedly connected to one side of the connecting frame (21), and a rotating shaft (41) passes through the fixed platform (4). An adjusting component (5) for adjusting the rotating shaft (41) is provided on the fixed platform (4). The rotating shaft (41) is also connected to a supporting member (6), which is used to support the corrugated plate of the carriage door and to correct the flatness of the corrugated plate.

2. The welding device for automated docking according to claim 1, characterized in that: The supporting component (6) includes a connecting block (61), a supporting middle plate (62), and a limiting outer frame (63). There are two connecting blocks (61), which are respectively fixedly installed at both ends of the rotating shaft (41). Both connecting blocks (61) are fixedly connected to the supporting middle plate (62). The two ends of the lifting middle plate (62) are fixedly connected to the two sides of the inner wall of the limiting outer frame (63), and movable welding joints (64) are provided on both sides of the lifting middle plate (62) and between it and the limiting outer frame (63). The supporting plate (62) has a continuous supporting groove (621) on the side away from the connecting block (61), and the supporting groove (621) cooperates with the bottom surface of the corrugated plate. The limiting outer frame (63) has a limiting groove (631) inside, and the limiting groove (631) communicates with the supporting groove (621). The limiting groove (631) is used to limit the frame of the carriage door. The limiting outer frame (63) is provided with a pressing pusher (7), and the pressing pusher (7) cooperates with the lifting groove (621) to correct the corrugated plate on the lifting groove (621); The inner sides of the limiting frame (63) are also provided with movable lifting parts (8), which can lift the edge of the corrugated plate by moving the welding port (64).

3. The welding device for automated docking according to claim 2, characterized in that: The pressing and pushing component (7) includes a first electric push rod (71), a synchronization plate (72), a pushing plate (73), and a pushing component (74). There are two first electric push rods (71), which are respectively fixedly installed on both sides of the outer side of the limiting frame (63). The output ends of the two first electric push rods (71) are fixedly connected to the synchronization plate (72) and the synchronization plate (72) is located outside the lifting groove (621). Two push plates (73) are provided, and the two push plates (73) cooperate with the lifting groove (621) to correct the corrugated plate at the lifting groove (621); The pusher (74) is mounted on the synchronization plate (72) and is used to synchronously drive the two push plates (73).

4. The welding apparatus for automated docking according to claim 3, characterized in that: The push plate (73) has a continuous mating groove (731) on the side near the corrugated plate. The mating groove (731) corresponds to the outer surface of the corrugated plate, and the rib height of the mating groove (731) is consistent with the rib height of the corrugated plate.

5. A welding apparatus for automated docking according to claim 4, characterized in that: Limiting components (75) are also fixedly installed at both ends of the push plate (73). The limiting component (75) includes a limiting plate (751), a limiting rod (752), a limiting sleeve (753), and a moving block (754). The limiting plate (751) is fixedly installed at one end of the push plate (73). One end of the limiting rod (752) is fixedly connected to the limiting plate (751). The limiting sleeve (753) is slidably sleeved on the outside of the limiting rod (752). The movable block (754) is fixedly installed on the outside of the limiting sleeve (753). The limiting outer frame (63) has limiting grooves (632) on both sides. One end of the movable block (754) is slidably connected inside the limiting groove (632).

6. A welding apparatus for automated docking according to claim 5, characterized in that: The moving block (754) is also fixedly installed with a pressing plate (7541) on one side inside the limiting groove (632), and a pressure sensor (7542) is also provided inside the limiting groove (632).

7. A welding apparatus for automated docking according to claim 2, characterized in that: The movable lifting component (8) includes a second electric push rod (81), a movable plate (82), a connector (83), and a lifting plate (84). The second electric push rod (81) is fixedly installed on the outside of the limiting frame (63), and the output end of the second electric push rod (81) passes through the limiting plate (751) and is fixedly connected to the movable plate (82). The output end of the second electric push rod (81) is slidably connected to the limiting frame (63), and the movable plate (82) is slidably connected inside the limiting groove (631). There are two connectors (83), which are located at both ends of the movable plate (82) and are connected to the lifting plate (84).

8. A welding apparatus for automated docking according to claim 7, characterized in that: The lifting plate (84) has a continuous lifting groove (841) on the side near the corrugated plate, and the lifting groove (841) matches the shape of the corrugated plate.

9. A welding apparatus for automated docking according to claim 7, characterized in that: The connector (83) includes a connecting rod (831), a moving shaft (832), a reinforcing plate (833), and a limiting frame (834). One end of the connecting rod (831) is rotatably connected to the moving plate (82) via a pin, and the other end of the connecting rod (831) is rotatably connected to the moving shaft (832). The moving shaft (832) passes through the reinforcing plate (833), and one end of the reinforcing plate (833) is fixedly connected to the lifting plate (84). The limiting frame (834) is fixedly installed on one side inside the limiting groove (631), and the limiting frame (834) is provided with an L-shaped limiting groove (632). The other end of the moving shaft (832) slides through the L-shaped limiting groove (632).

10. A welding apparatus for automated docking according to claim 9, characterized in that: The reinforcing plate (833) is L-shaped and has reinforcing ribs inside.