Intelligent double-beam welding gantry

Abstract

This invention relates to the field of welding auxiliary equipment technology, specifically an intelligent double-beam welding gantry. Two steel rails are fixedly supported longitudinally on both sides of the factory building near the top. The gantry assembly includes a main beam and traveling parts fixed to both ends of the main beam and moving along the steel rails. Two transverse guide rails are fixed horizontally to the front and rear walls of the main beam. Multiple movable bases move horizontally along the transverse guide rails. One end of a swing arm assembly is rotatably connected to a movable base and can reciprocate horizontally around the movable base. An electric hoist is fixed to the cantilever end of the swing arm assembly. A basket is suspended from the hook of the electric hoist and integrates welding equipment. This invention effectively solves the problems of limited movement range, inability to cross obstacles, and rigid layout of fixed-rail welding gantry structures.

Description

Technical Field

[0001] This invention relates to the field of welding auxiliary equipment technology, specifically to an intelligent double-beam welding gantry. Background Technology

[0002] In welding workshops for large structural components (such as ship sections, bridge assemblies, and large pressure vessels), welding stations are typically dispersed and the workpieces are enormous. Traditional welding service gantry cranes mostly rely on fixed tracks laid on the ground for linear movement. This model suffers from the following fundamental bottlenecks: Limited mobility and numerous blind spots: The fixed track lines prevent the gantry from covering areas where the tracks are not laid (such as the other side of the factory pillars, wide areas between tracks, and areas where workpieces are temporarily stored). This means that the welding equipment cannot directly serve the workpieces in these areas, requiring the use of cranes or manual labor to move the welding machine, resulting in low efficiency. Unable to overcome obstacles and lacking flexibility: Once the track path is blocked by factory columns, the foundations of other equipment, or large workpieces, the gantry cannot pass. To serve the work on the other side of the track, it is often necessary to hoist the workpiece to the area accessible by the gantry, or to set up a temporary working platform, which is cumbersome and poses safety risks. High track laying costs and rigid layout: To cover a larger area, a dense track network needs to be laid, which is costly and difficult to change once laid, making it unable to adapt to dynamic adjustments in production layout. Therefore, there is an urgent need for a new type of gantry system that does not rely on continuous fixed ground tracks, can flexibly realize path planning, split and reassemble to overcome obstacles, and ultimately achieve flexible scheduling and efficient operation of welding equipment throughout the workshop. Summary of the Invention

[0003] The purpose of this invention is to provide a smart double-beam welding gantry to solve the problems of limited movement range, inability to cross obstacles, and rigid layout of existing fixed-track welding gantry. To achieve the above objectives, the present invention provides the following technical solution: an intelligent double-beam welding gantry, wherein two steel rails are respectively fixedly supported longitudinally on both sides of the factory building near the top; the gantry assembly includes a main beam and traveling parts fixed to both ends of the main beam and respectively traveling along the steel rails; two transverse guide rails are respectively fixed horizontally to the front and rear walls of the main beam; a plurality of movable bases move horizontally along the transverse guide rails; one end of a swing arm assembly is rotatably connected to the movable base and can swing horizontally back and forth around the movable base; an electric hoist is fixed to the cantilever end of the swing arm assembly; and a basket is suspended on the hook of the electric hoist and integrates welding equipment. Preferably, the transverse guide rail includes a base plate fixed horizontally to the front and rear walls of the main beam, a slot on the upper and lower sides of the middle of the base plate, and a rack in the middle of the base plate. The movable base includes a frame, support wheels mounted on the inner end of the frame cavity and rotatably engaged in the slots, and a gear assembly rotatably mounted on the outer end of the frame cavity and meshing with the rack. The swing arm assembly includes a swing beam, a connecting plate fixed to the top and bottom of the inner end of the swing beam and rotatably sleeved on the top and bottom of the gear assembly, a drive motor mounted on the outer end of the top surface of the top connecting plate, a drive shaft fixedly connected to the bottom end of the drive motor power output shaft, and a drive gear fixedly sleeved in the middle of the drive shaft and meshing with the gear assembly. The inner end of the top surface of the frame is provided with a braking conversion mechanism for braking the gear assembly and the connecting plate respectively. Preferably, the gear assembly has a brake disc with its friction surface facing downwards fixed at the top. The top surface of the connecting plate at the top is provided with a friction ring II with its friction surface facing the friction surface of the brake disc. The brake conversion mechanism includes a support housing fixed to the inner end of the top surface of the frame, a lead screw with both ends rotatably sleeved to the two side walls of the support housing, a switching motor fixed to the outer wall of one side of the support housing and used to drive the lead screw to rotate, a nut threaded onto the lead screw, a slider fixedly sleeved on the outside of the nut, and a friction brake component whose inner end is vertically slidably engaged with the slider. The outer wall of the support housing is provided with an inclined groove that slidably engages with the middle of the friction brake component. The outer end of the friction brake component is located between the brake disc and the friction ring II, and its top and bottom surfaces are respectively provided with friction surfaces. Preferably, the outer wall of the slider is provided with a vertical groove extending vertically, and the friction braking component includes a locking block that slides and engages vertically with the vertical groove, a short column fixed to the locking block and slides and engages with the inclined groove, and a friction plate fixed to the outer end of the short column and extending horizontally, wherein the top and bottom surfaces of the friction plate are respectively provided with friction surfaces. Preferably, the inner wall of the support housing is provided with a slide rail in the horizontal direction that matches the sliding engagement of the slider. Preferably, the main beam is a double-beam box structure, a platform is fixed on the top surface of the main beam, guardrails are installed at the front and rear edges of the top surface of the platform, and maintenance platforms are provided on the front and rear walls at both ends of the main beam. Preferably, the traveling unit includes a strip-shaped box body arranged longitudinally above the rail, a plurality of double-flanged wheels rotatably mounted on the bottom of the inner cavity of the strip-shaped box body, a traveling motor fixedly mounted on the front and rear ends of the outer side wall of the strip-shaped box body for driving the rotation of the corresponding double-flanged wheels, polyurethane buffers mounted on the front and rear walls of the strip-shaped box body, and photoelectric sensors mounted on the front and rear ends of the strip-shaped box body. Preferably, horizontal guide wheels are fixed to both sides of the strip-shaped box body. The horizontal guide wheels include a cylindrical seat fixed to the outer side of the strip-shaped box body, a support beam that is slidably sleeved in the cylindrical seat in the horizontal direction, a vertical shaft that is rotatably sleeved at the top of the support beam, and a guide wheel that is fixedly sleeved at the bottom of the vertical shaft. Corresponding fixing plates and adjusting plates are fixed on the top surface of the cylindrical seat and the top surface of the support beam, respectively. An adjusting screw that is threadedly sleeved with the adjusting plate is rotated to the middle of the fixing plate. Preferably, the gear assembly includes a shaft with its top and bottom ends rotatably sleeved on the middle of the top and bottom plates of the frame, and an external gear disc fixedly sleeved on the middle of the shaft and meshing with the rack and the drive gear. The inner end of the connecting plate is rotatably sleeved on the top and bottom ends of the shaft, and the brake disc is detachably and fixedly sleeved on the top end of the shaft. Preferably, the top end of the shaft is fixedly connected to a top post, the top post has a radial hole in the middle, and the brake disc includes a friction ring sleeved on the bottom of the top post, a collar integrally formed on the inner edge of the top surface of the friction ring and sleeved and matched with the top post, and a pin sleeved radially on the middle of the collar and sleeved and matched with the radial hole. Compared with the prior art, the beneficial effects of the present invention are: The intelligent double-beam welding gantry of this invention utilizes a bridge-type mobile gantry, combined with a movable swing arm, electric hoist, and suspended platform, to achieve flexible transfer of welding equipment, flexibly cross obstacles, and adapt well to dynamic adjustments in production layout, thereby realizing flexible scheduling and efficient operation of welding equipment throughout the workshop. The intelligent double-beam welding gantry of this invention is composed of a modular structure, which facilitates processing and assembly, improves layout flexibility, and makes it easier to control input costs. Attached Figure Description Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a three-dimensional structural schematic diagram of the gantry assembly of the present invention; Figure 3 This is a three-dimensional structural diagram of the walking mechanism of the present invention; Figure 4 This is a three-dimensional structural diagram of the horizontal guide wheel of the present invention; Figure 5 This is a three-dimensional structural diagram of the transverse guide rail of the present invention; Figure 6 This is a three-dimensional structural diagram of the movable base of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the gear kit of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the brake disc component of the present invention; Figure 9 This is a three-dimensional structural schematic diagram of the swing arm assembly of the present invention; Figure 10 This is a three-dimensional structural schematic diagram of the braking conversion mechanism of the present invention; Figure 11 This is a three-dimensional structural schematic diagram of the friction braking component of the present invention; Figure 12 For the present invention Figure 1 A magnified structural diagram of point A in the middle. In the diagram: 1 - Rail; 2-Mass assembly; 2.1-Main beam; 2.2-Traveling unit; 2.2.1-Strip box; 2.2.2-Traveling motor; 2.2.3-Double-flanged wheel; 2.2.4-Polyurethane buffer; 2.2.5-Photoelectric sensor; 2.2.6-Horizontal guide wheel; 2.2.6.1-Cylindrical seat; 2.2.6.2-Support beam; 2.2.6.3-Vertical shaft; 2.2.6.4-Guide wheel; 2.2.6.5-Fixed plate; 2.2.6.6-Adjusting plate; 2.2.6.7-Adjusting screw; 2.3-Platform; 2.4-Guardrail; 2.5-Maintenance platform; 3-Horizontal guide rail; 3.1-Base plate; 3.2-Slot; 3.3-Rack; 4-Moving base; 4.1-Frame; 4.2-Support wheel; 4.3-Gear assembly; 4.3.1-Shaft; 4.3.2-External gear disc; 4.3.3-Top column; 4.3.4-Radial hole; 4.4-Brake disc; 4.4.1-Friction ring one; 4.4.2-Collar ring; 4.4.3-Pin; 5-Swing arm assembly; 5.1-Swing beam; 5.2-Connecting plate; 5.3-Drive motor; 5.4-Drive shaft; 5.5-Drive gear; 5.6-Friction ring II; 6-Brake conversion mechanism; 6.1-Support housing; 6.1.1-Inclined groove; 6.1.2-Slide rail; 6.2-Lead screw; 6.3-Switching motor; 6.4-Nut; 6.5-Slider; 6.5.1-Vertical groove; 6.6-Friction brake component; 6.6.1-Friction plate; 6.6.2-Short column; 6.6.3-Clamping block; 7-Electric hoist; 8-Hanging basket. Detailed Implementation 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. Please see Figure 1-12The present invention provides a technical solution: a special gantry for intelligent double beam welding, wherein two steel rails 1 are fixedly supported longitudinally on both sides of the factory building near the top. The gantry assembly 2 includes a main beam 2.1 and traveling sections 2.2 fixed to both ends of the main beam 2.1 and traveling along the rails 1. The main beam 2.1 is a double-beam box structure. A platform 2.3 is fixed to the top surface of the main beam 2.1, and guardrails 2.4 are installed at the front and rear edges of the top surface of the platform 2.3. Maintenance platforms 2.5 are provided on the front and rear walls of both ends of the main beam 2.1. The platform 2.3 is used as a pedestrian maintenance platform and is protected by the guardrails 2.4. The maintenance platform 2.5 consists of a downward-extending ladder and a cage-like frame outside the ladder to facilitate maintenance work on the electric hoist 7, the mobile base 4, and the swing arm assembly 5. The traveling unit 2.2 includes a strip-shaped box 2.2.1 longitudinally positioned above the rail 1, multiple double-flanged wheels 2.2.3 rotatably mounted on the bottom of the inner cavity of the strip-shaped box 2.2.1, a traveling motor 2.2.2 fixedly mounted on the front and rear ends of the outer wall of the strip-shaped box 2.2.1 for driving the corresponding double-flanged wheels 2.2.3, polyurethane buffers 2.2.4 mounted on the front and rear walls of the strip-shaped box 2.2.1, and photoelectric sensors 2.2.5 mounted on the front and rear ends of the strip-shaped box 2.2.1. A limiting device is provided at the end of the rail 1, and the polyurethane buffers 2.2.4 and photoelectric sensors 2.2.5 together form an anti-collision system. In addition, to further ensure the smooth operation of the traveling unit 2.2 and prevent derailment, horizontal guide wheels 2.2.6 are fixed to both side walls of the strip box 2.2.1. The horizontal guide wheels 2.2.6 include a cylindrical seat 2.2.6.1 fixed to the outer side wall of the strip box 2.2.1, a support beam 2.2.6.2 that slides horizontally within the cylindrical seat 2.2.6.1, a vertical shaft 2.2.6.3 that is rotatably fitted at the top of the support beam 2.2.6.2, and a guide wheel 2.2.6.4 fixedly fitted at the bottom of the vertical shaft 2.2.6.4. Corresponding fixing plates 2.2.6.5 and adjusting plates 2.2.6.6 are fixed to the top surface of the cylindrical seat 2.2.6.1 and the top surface of the support beam 2.2.6.2, respectively. An adjusting screw 2.2.6.7 that is threadedly fitted to the adjusting plate 2.2.6.6 is mounted on the middle of the fixing plate 2.2.6.5. The extension and retraction of the support beam 2.2.6.2 relative to the cylindrical seat 2.2.6.1 is adjusted by adjusting the lead screw 2.2.6.7, so that the flange of the guide wheel 2.2.6.4 can be supported against the two sides of the rail web of the rail 1. That is, the flange of the double-flanged wheel 2.2.3 is locked on both sides of the top of the rail 1, while the guide wheels 2.2.6.4 on both sides of the traveling unit 2.2 are supported on both sides of the rail web of the rail 1, thus realizing the smooth and stable operation of the traveling unit 2.2 and avoiding derailment accidents. Two transverse guide rails 3 are fixed horizontally to the front and rear walls of the main beam 2.1, respectively. Each transverse guide rail 3 includes a base plate 3.1 fixed horizontally to the front and rear walls of the main beam 2.1, slots 3.2 located on the upper and lower sides of the center of the base plate 3.1, and a rack 3.3 located in the center of the base plate 3.1. The base plate 3.1 is bolted to the main beam 2.1. The transverse guide rails 3 are a single, integrated structure, using a multi-segment interlocking method to form a complete linear guide rail structure. Multiple movable bases 4 move horizontally along the transverse guide rails 3. Each movable base 4 includes a frame 4.1, support wheels 4.2 mounted inside the inner cavity of the frame 4.1 and rotatably engaged in slots 3.2, and a gear assembly 4.3 rotatably mounted outside the inner cavity of the frame 4.1. The gear assembly 4.3 includes a shaft 4.3.1 rotatably fitted at its top and bottom to the middle of the top and bottom plates of the frame 4.1, and an external gear disc 4.3.2 fixedly fitted to the middle of the shaft 4.3.1 and meshing with a rack 3.3. The top of the 4.3.1 shaft is fixedly connected to a top post 4.3.3. The top post 4.3.3 has a radial hole 4.3.4 in the middle. The brake disc 4.4 includes a friction ring 4.4.1 sleeved on the bottom of the top post 4.3.3, a collar 4.4.2 integrally formed on the inner edge of the top surface of the friction ring 4.4.1 and fitted with the top post 4.3.3, and a pin 4.4.3 radially sleeved on the middle of the collar 4.4.2 and fitted with the radial hole 4.3.4. That is, the brake disc 4.4 is assembled on the top of the shaft 4.3.1 by the pin 4.4.3. The bottom surface of the friction ring 4.4.1 is provided with a friction-enhancing surface. One end of the swing arm assembly 5 is rotatably connected to the movable base 4 and can reciprocate horizontally around the movable base 4. The swing arm assembly 5 includes a swing beam 5.1, a connecting plate 5.2 fixed to the top and bottom of the inner end of the swing beam 5.1 and rotatably sleeved at the top and bottom of the shaft 4.3.1, a drive motor 5.3 mounted on the outer end of the top surface of the top connecting plate 5.2, a drive shaft 5.4 fixedly connected to the bottom end of the power output shaft of the drive motor 5.3, and a drive gear 5.5 fixedly fitted in the middle of the drive shaft 5.4 and meshing with the external gear disc 4.3.2. The top surface of the top connecting plate 5.2, located at the outer edge of the shaft 4.3.1, is provided with a second friction ring 5.6 opposite to the friction surface of the first friction ring 4.4.1. The braking conversion mechanism 6 includes a support housing 6.1 fixed to the inner end of the top surface of the frame 4.1, a lead screw 6.2 with both ends rotatably sleeved to the two side walls of the support housing 6.1, a switching motor 6.3 fixed to the outer side wall of the support housing 6.1 and used to drive the lead screw 6.2 to rotate, a nut 6.4 threaded onto the lead screw 6.2, a slider 6.5 fixedly sleeved on the outside of the nut 6.4, and a friction brake 6.6 whose inner end is vertically slidably engaged with the slider 6.5. The supporting housing 6.1 has an inclined groove 6.1.1 on its outer wall; the slider 6.5 has a vertically extending groove 6.5.1 on its outer wall; the friction brake 6.6 includes a locking block 6.6.3 that slides vertically into the groove 6.5.1, a short column 6.6.2 fixed to the locking block 6.6.3 and slides into the inclined groove 6.1.1, and a friction plate 6.6.1 fixed to the outer end of the short column 6.6.2 and extending horizontally, with friction surfaces on its top and bottom surfaces; the supporting housing 6.1 has a horizontally aligned slide rail 6.1.2 that slides into the slider 6.5. That is, the switching motor 6.3 drives the lead screw 6.2 to rotate, and the transmission relationship between the lead screw 6.2 and the nut enables the slider 6.5 to slide horizontally along the slide rail 6.1.2. When the slider 6.5 slides horizontally, it pushes the friction brake 6.6 as a whole, giving it horizontal displacement. Combined with the guiding effect of the inclined groove 6.1.1 in the inclined direction, the short column 6.6.2 slides relative to the inclined groove 6.1.1 while the locking block 6.6.3 slides vertically relative to the vertical groove 6.5.1 on the slider 6.5, so that the friction plate 6.6.1 has both horizontal and vertical displacement at the same time. When the friction plate 6.6.1 slides to the left, it will have an upward displacement, so that the friction-enhancing surface of its top surface will be in contact with the friction-enhancing surface of the bottom surface of the friction ring 4.4.1, so as to achieve braking of the gear assembly 4.3 as a whole through the brake disc 4.4, and to achieve braking positioning of the moving base 4 relative to the transverse guide rail 3; at this time, when the drive motor 5.3 drives the drive gear 5.5 to rotate through the drive shaft 5.4, the drive gear 5.5 will rotate along the outer edge of the fixed outer gear disk 4.3.2, so as to achieve the horizontal swing of the entire swing arm assembly 5. Through size coordination setting, the horizontal swing angle is guaranteed to be ±90°. Conversely, when the friction plate 6.6.1 slides to the right, it will have a downward displacement, thereby achieving the contact between the bottom friction surface of the friction plate 6.6.1 and the top friction surface of the friction ring 5.6, so as to fix the swing arm assembly 5 relative to the moving base 4; at this time, when the drive motor 5.3 drives the drive gear 5.5 to rotate through the drive shaft 5.4, the drive gear 5.5 will mesh with and drive the external gear disk 4.3.2, so as to achieve the operation of the external gear disk 4.3.2 relative to the rack 3.3, thus achieving the effect of the moving base 4 driving the swing arm assembly 5 to move laterally. The electric hoist 7 is fixed to the cantilever end of the swing arm assembly 5; the suspended basket 8 is suspended on the hook of the electric hoist 7 and integrates welding equipment. That is, by the movement of the traveling part 2.2 along the rail 1, the gantry assembly 2 can move longitudinally along the factory building, thereby facilitating the crossing of obstacles and flexibly moving to the vicinity of the welding station. Then, by the horizontal movement of the moving base 4, plus the horizontal swing of the swing arm assembly 5, the suspended basket 8 can be precisely moved to directly above the welding station. The electric hoist 7 then lowers the suspended basket 8 to the ground, making it easy to retrieve welding torches and other equipment from the suspended basket 8 for welding operations. Building upon the aforementioned structure, functional expansion can be achieved through a vision-based and path planning-driven cantilever automatic positioning system. This involves installing vision cameras (including laser contour scanning) on ​​the cage or gantry to automatically identify pre-defined welding workpiece features or QR code markings. The system incorporates a path planning algorithm that automatically plans the optimal coordinated motion path for cantilever rotation, cage lifting, and trolley movement based on the welding task sequence, achieving "one-click automatic positioning" from point A to point B. This significantly improves operational efficiency and accuracy, enabling the construction of an intelligent factory. It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those 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. 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 special intelligent double-beam welding gantry frame, characterized in that, include: Two steel rails (1) are fixedly supported longitudinally on both sides of the factory building near the top. The gantry assembly (2) includes a main beam (2.1) and a traveling part (2.2) fixed to both ends of the main beam (2.1) and traveling along the rails (1). Transverse guide rails (3), the two transverse guide rails (3) are respectively fixed to the front and rear walls of the main beam (2.1) in the horizontal direction; The movable base (4) and the plurality of the movable bases (4) move horizontally along the transverse guide rail (3); The swing arm assembly (5) is rotatably connected to the movable base (4) at one end and can swing horizontally back and forth around the movable base (4); An electric hoist (7) is fixed to the cantilever end of the swing arm assembly (5); The basket (8) is suspended on the hook of the electric hoist (7) and is equipped with welding equipment.

2. The intelligent double-beam welding gantry according to claim 1, characterized in that: The transverse guide rail (3) includes a base plate (3.1) fixed horizontally to the front and rear walls of the main beam (2.1), a slot (3.2) located on the upper and lower sides of the middle of the base plate (3.1), and a rack (3.3) located in the middle of the base plate (3.1). The movable base (4) includes a frame (4.1), support wheels (4.2) installed in the inner cavity of the frame (4.1) and rotatably engaged in the slots (3.2), and a gear assembly (4.3) rotatably installed in the outer cavity of the frame (4.1) and meshing with the rack (3.3). The swing arm assembly (5) includes a swing beam (5.1). The frame (4.1) is provided with a connecting plate (5.2) fixed to the top and bottom of the inner end of the swing beam (5.1) and rotatably sleeved on the top and bottom of the gear kit (4.3), a drive motor (5.3) installed on the outer end of the top surface of the top connecting plate (5.2), a drive shaft (5.4) fixedly connected to the bottom end of the power output shaft of the drive motor (5.3), and a drive gear (5.5) fixedly sleeved in the middle of the drive shaft (5.4) and meshing with the gear kit (4.3). The inner end of the top surface of the frame (4.1) is provided with a braking conversion mechanism (6) for braking the gear kit (4.3) and the connecting plate (5.2) respectively.

3. The intelligent double-beam welding gantry according to claim 2, characterized in that: The gear assembly (4.3) has a brake disc (4.4) with its friction surface facing downwards fixed at its top. The top surface of the connecting plate (5.2) at the top is provided with a friction ring (5.6) with its friction surface facing the friction surface of the brake disc (4.4). The brake conversion mechanism (6) includes a support housing (6.1) fixed to the inner end of the top surface of the frame (4.1), a lead screw (6.2) with both ends rotatably sleeved with the two side walls of the support housing (6.1), a switching motor (6.3) fixed to the outer wall of one side of the support housing (6.1) and used to drive the lead screw (6.2) to rotate, a nut (6.4) threaded onto the lead screw (6.2), a slider (6.5) fixedly sleeved on the outside of the nut (6.4), and a friction brake (6.6) with its inner end slidingly engaging with the slider (6.5) vertically. The outer wall of the support housing (6.1) is provided with an inclined groove that slides and engages with the middle of the friction brake (6.6). 6.1.1), the outer end of the friction brake (6.6) is located between the brake disc (4.4) and the second friction ring (5.6), and the top and bottom surfaces are respectively provided with friction surfaces.

4. The intelligent double-beam welding gantry according to claim 3, characterized in that: The slider (6.5) has a vertically extending groove (6.5.1) on its outer wall. The friction brake (6.6) includes a locking block (6.6.3) that slides vertically into the groove (6.5.1), a short post (6.6.2) fixed to the locking block (6.6.3) and slidably locked to the inclined groove (6.1.1), and a friction plate fixed to the outer end of the short post (6.6.2) and extending horizontally. 6.6.1), the friction plate (6.6.1) has friction surfaces on its top and bottom surfaces respectively.

5. The intelligent double-beam welding gantry according to claim 3, characterized in that: The inner wall of the support housing (6.1) is provided with a slide rail (6.1.2) in the horizontal direction, which is matched with the slider (6.5) in sliding engagement.

6. The intelligent double-beam welding gantry according to claim 1, characterized in that: The main beam (2.1) is a double-beam box structure. A platform (2.3) is fixed on the top surface of the main beam (2.1). Guardrails (2.4) are installed at the front and rear edges of the top surface of the platform (2.3). Inspection platforms (2.5) are provided on the front and rear walls of both ends of the main beam (2.1).

7. The intelligent double-beam welding gantry according to claim 1, characterized in that: The traveling unit (2.2) includes a strip-shaped box (2.2.1) longitudinally positioned above the rail (1), multiple double-flanged wheels (2.2.3) rotatably mounted on the bottom of the inner cavity of the strip-shaped box (2.2.1), a traveling motor (2.2.2) fixedly mounted on the front and rear ends of the outer wall of the strip-shaped box (2.2.1) for driving the corresponding double-flanged wheels (2.2.3) to rotate, polyurethane buffers (2.2.4) mounted on the front and rear walls of the strip-shaped box (2.2.1), and components mounted on the strip-shaped box (2.2.1). 2.2.1) Front and rear photoelectric sensors (2.2.5).

8. The intelligent double-beam welding gantry according to claim 7, characterized in that: The two side walls of the strip-shaped box (2.2.1) are fixed with horizontal guide wheels (2.2.6). Each horizontal guide wheel (2.2.6) includes a cylindrical seat (2.2.6.1) fixed to the outer side wall of the strip-shaped box (2.2.1), a support beam (2.2.6.2) slidably fitted into the cylindrical seat (2.2.6.1) in the horizontal direction, and a vertical shaft (2.2.6.3) with its top end rotatably fitted onto the outer end of the support beam (2.2.6.2). A guide wheel (2.2.6.4) is fixedly fitted to the bottom end of the vertical shaft (2.2.6.3). A corresponding fixing plate (2.2.6.5) and adjusting plate (2.2.6.6) are respectively fixed on the top surface of the cylindrical seat (2.2.6.1) and the top surface of the support beam (2.2.6.2). An adjusting screw (2.2.6.7) is threadedly fitted to the middle of the fixing plate (2.2.6.5) and connected to the adjusting plate (2.2.6.6).

9. The intelligent double-beam welding gantry according to claim 3, characterized in that: The gear assembly (4.3) includes a shaft (4.3.1) rotatably sleeved at the top and bottom of the frame (4.1) at the middle of the top and bottom plate, and an external gear disc (4.3.2) fixedly sleeved at the middle of the shaft (4.3.1) and meshing with the rack (3.3) and the drive gear (5.5). The inner end of the connecting plate (5.2) is rotatably sleeved at the top and bottom of the shaft (4.3.1), and the brake disc (4.4) is detachably and fixedly sleeved at the top of the shaft (4.3.1).

10. The intelligent double-beam welding gantry according to claim 9, characterized in that: The top end of the shaft (4.3.1) is fixedly connected to a top post (4.3.3). The top post (4.3.3) has a radial hole (4.3.4) in the middle. The brake disc (4.4) includes a friction ring (4.4.1) sleeved on the bottom of the top post (4.3.3), a collar (4.4.2) integrally formed on the inner edge of the top surface of the friction ring (4.4.1) and sleeved and matched with the top post (4.3.3), and a pin (4.4.3) sleeved radially on the middle of the collar (4.4.2) and sleeved and matched with the radial hole (4.3.4).

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