A gantry welding machine for crane component processing

Abstract

The present invention relates to the technical field of accessory welding, and in particular to a gantry welding for crane component processing; comprising two guide rails symmetrically laid on the ground; and also comprising a welding device, the welding device being connected to the two guide rails, the welding device comprising a door-type slide slidably connected to the two guide rails, a first hydraulic push rod being installed at the lower end of the middle section of the door-type slide, and an intermittent rotating module being installed at the lower end of the first hydraulic push rod. The positioning welding mechanism adopted by the present invention can accurately position the base at the welding position of the beam during the welding process, without the need to perform multiple fine-tuning positioning on the placed base; the positioning mechanism adopted by the present invention can limit the positioning welding mechanism during the welding process, effectively increasing the stability of the welding, ensuring the uniformity of the weld after welding, and avoiding the phenomenon of leaking welds and cold welds, and the positioning welding mechanism and the intermittent rotating module can realize the function of automatic side switching.

Description

Technical Field

[0001] The invention relates to the technical field of accessory welding, and in particular to gantry welding for crane component processing. Background Art

[0002] A crane is a mechanical device used to lift and move heavy objects. It is widely used in construction sites, ports, warehouses, factories and other places. A crane is usually composed of a structural frame, a hook, a pulley block, an electric motor and other components.

[0003] The structural frame of the crane mainly includes a base, a beam and a boom. During the connection process of the beam and the boom, the base is usually welded to the beam first, and then the boom is connected to the base.

[0004] When welding the beam and base of a crane with existing technology, the beam is usually moved to the working position and positioned first, and then the base to be welded is placed on the beam, and then the base is moved to the required welding position and aligned, and then the welding position of the beam and the base is welded by welding equipment. However, in the prior art, after the base is placed on the upper end of the beam, the staff is required to fine-tune the position of the base so that it can be accurately in the required welding position, thereby increasing the staff's operating steps and reducing the overall welding efficiency. In addition, when welding the four sides of the larger base at the contact position with the beam, it is necessary to move the fixed frame used in conjunction with the existing welding equipment to meet the welding requirements. After the welding equipment is moved by the fixed frame, there is a tendency for welding position deviation to occur when welding again, resulting in a reduction in the contact area of ​​the welding and a reduction in the welding strength between the welded beam and the base. Summary of the invention

[0005] Based on this, it is necessary to provide a gantry welding for crane component processing, aiming to solve the problems caused by welding the crane beam and the base in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme to achieve: a gantry welding for crane component processing, comprising: two guide rails symmetrically laid on the ground front and back.

[0007] It also includes a welding device, which is connected to the two guide rails. The welding device includes a door-type slide slidably connected to the two guide rails. A first hydraulic push rod is installed at the lower end of the middle section of the door-type slide, and an intermittent rotation module is installed at the lower end of the first hydraulic push rod. A positioning welding mechanism is connected to the lower end of the intermittent rotation module. A positioning mechanism is also connected to the lower end of the middle section of the door-type slide.

[0008] The positioning welding mechanism includes a cross plate installed at the lower end of the intermittent rotating module, and the four side ends of the cross plate are provided with adjustment branches. Any three of the adjustment branches are connected to the positioning branches, and the remaining one of the adjustment branches is connected to the welding branch. The four side ends of the cross plate are provided with positioning through holes that pass through from top to bottom.

[0009] It also includes a supporting device, which is arranged between the two guide rails and installed on the upper end of the ground. The supporting device includes a positioning plate fixed on the upper end of the ground, and centering mechanisms are symmetrically arranged on the left and right ends of the positioning plate.

[0010] According to an embodiment of the present invention, the positioning mechanism includes two connecting rods symmetrically installed front and back at the lower end of the middle section of the door-type slide, and a rectangular frame is commonly installed at the lower ends of the two connecting rods. Strip plates are installed in the middle of the inner ends of the four frame walls of the rectangular frame, and positioning columns that are plug-in compatible with the corresponding positioning through holes are installed at the upper ends of the strip plates.

[0011] According to an embodiment of the present invention, the adjusting branch chain includes a rectangular sliding through hole opened on the cross plate, and a plurality of evenly arranged limiting holes are provided on the cross plate and located at the length side of the sliding through hole. A sliding block with an I-shaped structure is slidably connected in the sliding through hole, and a positioning rod with a U-shaped structure is inserted into the sliding block. The two vertical sections of the positioning rod are inserted into and cooperate with any limiting holes on both sides of the sliding through hole.

[0012] According to an embodiment of the present invention, the alignment branch chain includes a first arc rod installed at the lower end of the corresponding sliding block, and a connecting frame with a U-shaped structure and an opening facing downward is installed at the lower end of the first arc rod, and a rotating roller is rotatably connected in the connecting frame.

[0013] According to an embodiment of the present invention, the welding branch chain includes a sliding frame installed at the lower end of the corresponding sliding block, a threaded rod is connected between the two end walls of the sliding frame for common rotation, either end of the threaded rod is fixedly connected to the output shaft of the driving motor, the driving motor is fixedly connected to the upper end of the sliding frame, and a moving block slidably connected to the sliding frame is threadedly connected to the threaded rod.

[0014] According to an embodiment of the present invention, the welding branch chain also includes a second arc rod installed at the lower end of the moving block, and a U-shaped plate with an opening facing downward is installed at the lower end of the second arc rod. The inner ends of the two vertical sections of the U-shaped plate are rotatably connected to cylindrical rollers, and a welding module fixedly connected to the U-shaped plate is arranged between the two cylindrical rollers.

[0015] According to an embodiment of the present invention, the centering mechanism includes a sliding groove opened at the end of the positioning plate, a sliding plate is slidably connected in the sliding groove, a plurality of evenly distributed plug-in holes are opened on the sliding plate, a plug-in rod is slidably penetrated and connected on the front and rear groove walls of the sliding groove, the plug-in rod is plugged into and cooperated with any one of the plug-in holes, and a centering branch chain is installed on the end of the sliding plate away from the positioning plate.

[0016] According to an embodiment of the present invention, the center branch chain includes a support plate installed at the end of the sliding plate, a bidirectional hydraulic push rod is installed in the middle of the support plate, pushing plates are installed at both the front and rear ends of the bidirectional hydraulic push rod, a second hydraulic push rod is installed at the end of the support plate away from the sliding plate, and an extrusion plate is installed at the end of the telescopic section of the second hydraulic push rod.

[0017] According to an embodiment of the present invention, the alignment welding mechanism further comprises an exhaust pipe installed in the middle of the lower end of the cross plate, and a trumpet-shaped opening is provided at the lower end of the exhaust pipe.

[0018] According to an embodiment of the present invention, the upper ends of the positioning plate and the supporting plate are rotatably connected with a plurality of evenly distributed balls.

[0019] In summary, the present invention includes the following beneficial effects: 1. The positioning welding mechanism adopted by the present invention can accurately position the base at the welding position of the beam during the welding process, without the need to perform multiple fine-tuning of the placed base, thereby reducing the operating steps of the staff, thereby reducing manpower input, and improving the efficiency of the overall welding of the base and the beam.

[0020] 2. The positioning mechanism adopted in the present invention can limit the position of the calibration welding mechanism during the welding process, effectively increasing the stability of welding, ensuring the uniformity of the weld after welding, and avoiding the phenomenon of leaking welds and cold welds. In addition, the calibration welding mechanism and the intermittent rotation module can realize the function of automatic side changing, and there is no need to perform welding positioning again after changing sides. The welding position is accurate, ensuring the welding effect of the connection between the beam and the base, and improving the strength of the connection between the beam and the base.

[0021] 3. The supporting device and the positioning welding mechanism used in the present invention can be adjusted to achieve welding processing of beams and bases of different sizes within a certain range, which effectively improves the applicability of gantry welding and increases the working occasions of gantry welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0024] Figure 2 A schematic diagram of the second viewing angle stereoscopic structure of the present invention is shown.

[0025] Figure 3 A front view of the present invention is shown.

[0026] Figure 4 A left side view of the present invention is shown.

[0027] Figure 5 Shows Figure 3 Sectional view along AA direction.

[0028] Figure 6 Shows Figure 4 Cross-sectional view along the BB axis.

[0029] Figure 7 The schematic structural diagram of the positioning welding mechanism of the present invention is shown.

[0030] Figure 8 The working schematic diagram of the present invention is shown.

[0031] The above drawings include the following reference numerals: 1, guide rail; 2, welding device; 21, door-type slide; 22, first hydraulic push rod; 23, intermittent rotation module; 24, calibration welding mechanism; 241, cross plate; 242, adjustment branch chain; 2421, sliding through hole; 2422, limiting hole; 2423, sliding block; 2424, positioning rod; 243, calibration branch chain; 2431, first arc rod; 2432, connecting frame; 2433, rotating roller; 244, welding branch chain; 2441, sliding frame; 2442, threaded rod; 2443, driving motor; 2444, moving block; 244 5. Second arc rod; 2446. U-shaped plate; 2447. Cylindrical roller; 2448. Welding module; 245. Positioning through hole; 246. Exhaust pipe; 25. Positioning mechanism; 251. Connecting rod; 252. Rectangular frame; 253. Strip plate; 254. Positioning column; 3. Support device; 31. Positioning plate; 32. Centering mechanism; 321. Sliding groove; 322. Sliding plate; 323. Plug-in hole; 324. Plug-in rod; 325. Centering branch chain; 3251. Support plate; 3252. Two-way hydraulic push rod; 3253. Pushing plate; 3254. Second hydraulic push rod; 3255. Extrusion plate. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1-Figure 4 , a gantry welding for crane component processing, including two guide rails 1 symmetrically laid on the ground front and back.

[0034] See also Figure 1 and Figure 2 The gantry welding for crane component processing also includes a welding device 2, which is connected to the two guide rails 1, and the welding device 2 includes a door-type slide 21 slidably connected to the two guide rails 1.

[0035] See also Figure 1 and Figure 2 The gantry welding for crane component processing also includes a supporting device 3, which is arranged between the two guide rails 1 and installed on the upper end of the ground. The supporting device 3 includes a positioning plate 31 fixed on the upper end of the ground, and a centering mechanism 32 is symmetrically arranged on the left and right ends of the positioning plate 31.

[0036] During specific work, the two guide rails 1 are initially fixed on the ground of the workplace, and then the positioning plate 31 is centered between the two guide rails 1 and fixed to the ground. The positioning plate 31 limits the two centering mechanisms 32, and then the door-type slide 21 is slidably connected to the two guide rails 1. The door-type slide 21 has its own driving source for driving the door-type slide 21 to move on the two guide rails 1.

[0037] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The centering mechanism 32 includes a sliding groove 321 opened at the end of the positioning plate 31, a sliding plate 322 is slidably connected in the sliding groove 321, and a plurality of evenly distributed plug holes 323 are opened on the sliding plate 322. A plug rod 324 is slidably penetrated and connected on the front and rear groove walls of the sliding groove 321, and the plug rod 324 is plugged into any one of the plug holes 323. A centering branch chain 325 is installed at the end of the sliding plate 322 away from the positioning plate 31.

[0038] See also Figure 1 , Figure 5 and Figure 6The central branch chain 325 includes a support plate 3251 installed at the end of the sliding plate 322, a bidirectional hydraulic push rod 3252 is installed in the middle of the support plate 3251, and pushing plates 3253 are installed at the front and rear ends of the bidirectional hydraulic push rod 3252. A second hydraulic push rod 3254 is installed at the end of the support plate 3251 away from the sliding plate 322, and an extrusion plate 3255 is installed at the end of the telescopic section of the second hydraulic push rod 3254.

[0039] See also Figure 1 , Figure 5 and Figure 6 The upper ends of the positioning plate 31 and the support plate 3251 are both rotatably connected with a plurality of evenly distributed balls.

[0040] See also Figure 1-Figure 8 During the specific operation, the two-way hydraulic push rod 3252 and the second hydraulic push rod 3254 are connected to the external hydraulic pump. Initially, the two plug-in rods 324 and the positioning plate 31 are in a separated state. According to the required length of the crane beam to be welded, the two sliding plates 322 are pushed. The sliding plates 322 slide in the sliding grooves 321 and drive the support plates 3251 to move, thereby changing the spacing between the two support plates 3251 to match the beam length. Subsequently, the two plug-in rods 324 are plugged into the positioning plate 31 and plugged into the corresponding plug holes 323 on the two sliding plates 322, thereby limiting the sliding plates 322. Subsequently, the two second hydraulic push rods 3254 and the two two-way hydraulic push rods 3252 are started to make them in the longest stroke state, and then the beam to be welded is lifted to the upper ends of the two support plates 3251 and the positioning plate 31 by the existing crane (see Figure 8 ), separate the crane from the beam, and then start the two second hydraulic push rods 3254 and the two bidirectional hydraulic push rods 3252 at the same time, the two second hydraulic push rods 3254 drive the two extrusion plates 3255 to approach each other and push the beam laterally, the two bidirectional hydraulic push rods 3252 drive the four pushing plates 3253 to approach each other and push the beam longitudinally, the two extrusion plates 3255 and the four pushing plates 3253 cooperate to realize the function of centering the beam, and the balls on the positioning plate 31 and the support plate 3251 facilitate the smooth movement of the beam.

[0041] See also Figure 1 and Figure 2 A first hydraulic push rod 22 is installed at the lower end of the middle section of the gate-type slide 21, an intermittent rotation module 23 is installed at the lower end of the first hydraulic push rod 22, a positioning welding mechanism 24 is connected to the lower end of the intermittent rotation module 23, and a positioning mechanism 25 is also connected to the lower end of the middle section of the gate-type slide 21.

[0042] During specific operation, the intermittent rotating module 23 is an existing groove wheel intermittent rotating mechanism, which connects the first hydraulic push rod 22 to an external hydraulic pump. After the beam is placed and positioned on the upper ends of the two support plates 3251 and the positioning plate 31, the door-type slide 21 is started. The door-type slide 21 drives the alignment welding mechanism 24 to move to the position where the beam is welded with the base through the first hydraulic push rod 22 and the intermittent rotating module 23. At the same time, the door-type slide 21 drives the positioning mechanism 25 to move, and starts the first hydraulic push rod 22. The first hydraulic push rod 22 drives the alignment welding mechanism 24 to cooperate with the positioning mechanism 25 through the intermittent rotating module 23.

[0043] See also Figure 1 , Figure 2 and Figure 7 The positioning welding mechanism 24 includes a cross plate 241 installed at the lower end of the intermittent rotating module 23. The four side ends of the cross plate 241 are provided with adjusting branches 242. Any three of the adjusting branches 242 are connected to the positioning branches 243, and the remaining one of the adjusting branches 242 is connected to the welding branch 244. The four side ends of the cross plate 241 are provided with positioning through holes 245 that pass through from top to bottom.

[0044] See also Figure 1 and Figure 7 The alignment welding mechanism 24 also includes an exhaust pipe 246 installed in the middle of the lower end of the cross plate 241, and a trumpet-shaped opening is provided at the lower end of the exhaust pipe 246.

[0045] During specific operation, the exhaust pipe 246 is connected to the existing air pump. After the door-type slide 21 drives the cross plate 241 to move to the welding position of the beam and the base through the first hydraulic push rod 22 and the intermittent rotating module 23, the air pump is started, and the air pump injects air into the exhaust pipe 246, and then discharges air from the trumpet-shaped opening at the lower end of the exhaust pipe 246, so as to blow and clean the welding position of the beam and the base, remove dust and impurities at the welding position, avoid dust and impurities from affecting the welding of the beam and the base, and ensure the welding effect. Then, the air pump is turned off, and the required base is placed at the welding position of the beam (see Figure 8 ).

[0046] See also Figure 1 , Figure 5 , Figure 6 and Figure 7The adjusting branch chain 242 includes a rectangular sliding hole 2421 opened on the cross plate 241, and a plurality of evenly arranged limiting holes 2422 are arranged on the cross plate 241 and located at the length side of the sliding hole 2421. A sliding block 2423 with an I-shaped structure is slidably connected in the sliding hole 2421, and a U-shaped positioning rod 2424 is inserted on the sliding block 2423. The two vertical sections of the positioning rod 2424 are plugged into any limiting holes 2422 on both sides of the sliding hole 2421.

[0047] During specific operation, the four sliding blocks 2423 are adjusted in sequence according to the size of the base. The sliding blocks 2423 slide in the sliding through holes 2421 until the sliding blocks 2423 slide to the desired position. The locking rods 2424 are passed through the sliding blocks 2423 and are plugged into the corresponding limiting holes 2422 to achieve the function of limiting the sliding blocks 2423.

[0048] See also Figure 2 , Figure 5 , Figure 6 and Figure 7 The alignment branch chain 243 includes a first arc rod 2431 installed at the lower end of the corresponding sliding block 2423, and a connecting frame 2432 with a U-shaped structure and an opening facing downward is installed at the lower end of the first arc rod 2431, and a rotating roller 2433 is rotatably connected in the connecting frame 2432.

[0049] See also Figure 2 , Figure 5 , Figure 6 and Figure 7 The welding branch chain 244 includes a sliding frame 2441 installed at the lower end of the corresponding sliding block 2423, and a threaded rod 2442 is connected between the two end walls of the sliding frame 2441 for common rotation. The output shaft of the driving motor 2443 is fixedly connected to either end of the threaded rod 2442. The driving motor 2443 is fixedly connected to the upper end of the sliding frame 2441, and a moving block 2444 slidably connected to the sliding frame 2441 is threadedly connected to the threaded rod 2442.

[0050] See also Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The welding branch chain 244 also includes a second arc rod 2445 installed at the lower end of the moving block 2444, and a U-shaped plate 2446 with an opening facing downward is installed at the lower end of the second arc rod 2445. The inner ends of the two vertical sections of the U-shaped plate 2446 are rotatably connected to cylindrical rollers 2447, and a welding module 2448 fixedly connected to the U-shaped plate 2446 is arranged between the two cylindrical rollers 2447.

[0051] During specific operation, the welding module 2448 is a welding head of an existing laser welding device, and the laser welding device is fixed on the door-shaped slide 21. Initially, the driving motor 2443 is connected to an external power supply. When the sliding block 2423 moves, the four sliding blocks 2423 respectively drive the three first arc rods 2431 and the sliding frame 2441 to move. The three first arc rods 2431 drive the three rotating rollers 2433 to move to corresponding positions through the three connecting frames 2432. The sliding frame 2441 drives the second arc rod 2445 to move through the moving block 2444. The second arc rod 2445 drives the two cylindrical rollers 2447 to move to the corresponding positions through the U-shaped plate 2446. , at which point the size of the three rotating rollers 2433 and the two cylindrical rollers 2447 matches the size of the base, and then the first hydraulic push rod 22 is started, and the first hydraulic push rod 22 drives the cross plate 241 to move downward through the intermittent rotating module 23, and the cross plate 241 drives the three first arc rods 2431 and the sliding frame 2441 to move downward through the four sliding blocks 2423, and the sliding frame 2441 drives the second arc rod 2445 to move downward through the moving block 2444, and the three first arc rods 2431 and the second arc rod 2445 drive the three rotating rollers 2433 and the two cylindrical rollers through the three connecting frames 2432 and the U-shaped plate 2446. 2447 moves downward until it contacts the four side walls of the base. Because the four side walls of the base are inclined and the vertical section is an upright trapezoidal structure, the three rotating rollers 2433 and the two cylindrical rollers 2447 contact the side walls of the base and push the side walls of the base in the process of continuing to move downward. The base slides on the beam under force, thereby realizing the function of automatic alignment between the beam and the base. There is no need for the staff to fine-tune the positioning of the base many times, which reduces the input of manpower and improves the accuracy of welding between the base and the beam. When the three rotating rollers 2433 and the two cylindrical rollers 2447 descend to fit the upper end of the beam, the first hydraulic push rod 22 is closed, and then the drive motor 24 is started. 43. The driving motor 2443 drives the threaded rod 2442 to rotate, and the threaded rod 2442 drives the moving block 2444 to rotate. The moving block 2444 drives the U-shaped plate 2446 and the welding module 2448 to move to the end of the sliding frame 2441 through the second arc rod 2445. Then the driving motor 2443 is rotated in the opposite direction, and the welding module 2448 moves toward the base. When the welding module 2448 moves to the contact point between the base and the beam, the welding module 2448 is started, and the welding module 2448 welds the contact point between the base and the beam until the welding module 2448 completes welding on one side of the contact point between the base and the beam, and then the driving motor 2443 is turned off.

[0052] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7The positioning mechanism 25 includes two connecting rods 251 symmetrically installed at the lower end of the middle section of the door-type slide 21, and a rectangular frame 252 is installed at the lower ends of the two connecting rods 251. The middle part of the inner ends of the four frame walls of the rectangular frame 252 is installed with a strip plate 253, and the upper end of the strip plate 253 is installed with a positioning column 254 that is plugged into the corresponding positioning through hole 245.

[0053] During specific operation, initially, the positioning column 254 is plugged into the positioning through hole 245 to realize the function of limiting the cross plate 241, thereby preventing the cross plate 241 from rotating during the welding process, improving the stability of welding, and avoiding the phenomenon of cold welding and leaking welding. After the welding of one side of the contact point between the base and the cross beam is completed, the first hydraulic push rod 22 is started, and the first hydraulic push rod 22 drives the cross plate 241 to move upward through the intermittent rotation module 23. The cross plate 241 drives the three first arc rods 2431 and the sliding frame 2441 to move upward through the four sliding blocks 2423. The sliding frame 2441 drives the second arc rod 2445 to move upward through the moving block 2444. The three first arc rods 2431 and the second arc rod 2445 drive the three connecting frames 2432 and the U-shaped plate 2446 drives the three rotating rollers 2433 and the two cylindrical rollers 2447 to move upward until the cross plate 241 is separated from the positioning column 254, and then the intermittent rotation module 23 is started. The intermittent rotation module 23 drives the cross plate 241 to rotate 90°, and then the first hydraulic push rod 22 drives the cross plate 241 to move downward through the intermittent rotation module 23. The four positioning through holes 245 on the cross plate 241 are plugged into and matched with the four positioning columns 254 to re-limit the rotation direction of the cross plate 241. The first hydraulic push rod 22 drives the intermittent rotation module 23 and the cross plate 241 to continue to move downward, and repeat the previous welding steps until the welding module 2448 completes the welding of the corresponding side of the contact between the base and the cross beam, and then the cross plate 241 is driven to move upward by the first hydraulic push rod 22 again.

[0054] Repeat the steps of changing sides and welding until the four contact points between the base and the beam are completely welded, then start the door-type slide 21, and the door-type slide 21 drives the cross plate 241 to move to the welding position on the other side of the beam through the first hydraulic push rod 22 and the intermittent rotation module 23, and then place another base at the welding position, and repeat the previous steps of welding the base and the beam until the welding of the other base and the beam is completed. The welding of the beam and the base is completed, and the two second hydraulic push rods 3254 and the two bidirectional hydraulic push rods 3252 drive the four pushing plates 3253 to separate from the two extrusion plates 3255, and then the beam is removed from the two support plates 3251 and the positioning plate 31 by a crane, and the welding is completed.

[0055] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gantry welding system for crane component processing, comprising two guide rails (1) symmetrically laid on the ground front and back, characterized in that: A welding device (2) is connected to the two guide rails (1), the welding device (2) comprises a door-type slide (21) slidably connected to the two guide rails (1), a first hydraulic push rod (22) is installed at the lower end of the middle section of the door-type slide (21), an intermittent rotating module (23) is installed at the lower end of the first hydraulic push rod (22), a positioning welding mechanism (24) is connected to the lower end of the intermittent rotating module (23), and a positioning mechanism (25) is also connected to the lower end of the middle section of the door-type slide (21); The positioning welding mechanism (24) comprises a cross plate (241) installed at the lower end of the intermittent rotating module (23); the four side ends of the cross plate (241) are provided with adjustment branches (242); any three of the adjustment branches (242) are connected to the positioning branches (243); the remaining one of the adjustment branches (242) is connected to the welding branch (244); and the four side ends of the cross plate (241) are provided with positioning through holes (245) that pass through from top to bottom; A support device (3) is arranged between the two guide rails (1) and installed on the upper end of the ground, wherein the support device (3) comprises a positioning plate (31) fixed on the upper end of the ground, and a centering mechanism (32) is symmetrically arranged at the left and right ends of the positioning plate (31); The adjusting branch chain (242) comprises a rectangular sliding through hole (2421) opened on the cross plate (241), a plurality of evenly arranged limiting holes (2422) are arranged on the cross plate (241) and located at the length side of the sliding through hole (2421), a sliding block (2423) with an I-shaped structure is slidably connected in the sliding through hole (2421), a U-shaped locking rod (2424) is plugged into the sliding block (2423), and two vertical sections of the locking rod (2424) are plugged into any limiting holes (2422) on both sides of the sliding through hole (2421); The alignment branch chain (243) comprises a first arc-shaped rod (2431) mounted at the lower end of the corresponding sliding block (2423); a connecting frame (2432) having a U-shaped structure and an opening facing downward is mounted at the lower end of the first arc-shaped rod (2431); a rotating roller (2433) is rotatably connected in the connecting frame (2432); The welding branch chain (244) comprises a sliding frame (2441) installed at the lower end of the corresponding sliding block (2423); a threaded rod (2442) is rotatably connected between two end walls of the sliding frame (2441); an output shaft of a driving motor (2443) is fixedly connected to any one end of the threaded rod (2442); the driving motor (2443) is fixedly connected to the upper end of the sliding frame (2441); a moving block (2444) slidably connected to the sliding frame (2441) is threadedly connected to the threaded rod (2442); The welding branch chain (244) also includes a second arc-shaped rod (2445) installed at the lower end of the moving block (2444), and a U-shaped plate (2446) with an opening facing downward is installed at the lower end of the second arc-shaped rod (2445), and the inner ends of the two vertical sections of the U-shaped plate (2446) are rotatably connected to cylindrical rollers (2447), and a welding module (2448) fixedly connected to the U-shaped plate (2446) is arranged between the two cylindrical rollers (2447).

2. The gantry welding for crane component processing according to claim 1 is characterized in that: The positioning mechanism (25) comprises two connecting rods (251) symmetrically mounted at the lower end of the middle section of the door-type slide (21), a rectangular frame (252) being mounted on the lower ends of the two connecting rods (251), strip plates (253) being mounted at the middle of the inner ends of the four frame walls of the rectangular frame (252), and a positioning column (254) pluggably engaged with the corresponding positioning through hole (245) being mounted on the upper end of the strip plate (253).

3. The gantry welding for crane component processing according to claim 1 is characterized in that: The centering mechanism (32) comprises a sliding groove (321) provided at the end of the positioning plate (31), a sliding plate (322) being slidably connected in the sliding groove (321), a plurality of evenly distributed plug holes (323) being provided on the sliding plate (322), a plug rod (324) being slidably penetrated and connected on the front and rear groove walls of the sliding groove (321), the plug rod (324) being plugged into and matched with any one of the plug holes (323), and a centering branch chain (325) being installed at one end of the sliding plate (322) away from the positioning plate (31).

4. The gantry welding for crane component processing according to claim 3 is characterized in that: The central branch chain (325) includes a support plate (3251) installed at the end of the sliding plate (322), a bidirectional hydraulic push rod (3252) is installed in the middle of the support plate (3251), and pushing plates (3253) are installed at the front and rear ends of the bidirectional hydraulic push rod (3252). A second hydraulic push rod (3254) is installed at one end of the support plate (3251) away from the sliding plate (322), and an extrusion plate (3255) is installed at the end of the telescopic section of the second hydraulic push rod (3254).

5. The gantry welding for crane component processing according to claim 1, characterized in that: The alignment welding mechanism (24) further comprises an exhaust pipe (246) installed at the middle portion of the lower end of the cross plate (241), and a trumpet-shaped opening is provided at the lower end of the exhaust pipe (246).

6. The gantry welding for crane component processing according to claim 4, characterized in that: The upper ends of the positioning plate (31) and the support plate (3251) are both rotatably connected to a plurality of evenly distributed balls.

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