An intelligent welding device suitable for safety ladder cage workpieces

Abstract

This invention discloses an intelligent welding device suitable for safety ladder cage workpieces, including a base plate with two symmetrically arranged conveying components for conveying the crossbars of the frame. The base plate also includes a first feeding component and two sets of second feeding components, symmetrically arranged on both sides of the first feeding component. The device further includes a rotating component, a shifting mechanism, an internal support component, and a clamping component. The first feeding component sequentially rotates four columns to suitable positions and cooperates with the internal support component for support. The two sets of second feeding components are mounted on the shifting mechanism, enabling them to move towards or away from each other. This invention addresses the technical problems in the prior art where manual positioning leads to dimensional deviations and poor overall frame consistency, severely affecting subsequent ladder cage assembly. It also solves the technical pain point of difficulty in demolding and removing tubular frames after complete welding due to interference from equipment components.

Description

Technical Field

[0001] This invention relates to the field of safety ladder cage production technology, and in particular to an intelligent welding device suitable for safety ladder cage workpieces. Background Technology

[0002] In high-altitude operations such as building construction and bridge construction, safety ladder cages serve as extremely important life protection and personnel access facilities. Their overall structural strength and dimensional accuracy directly affect the safety of on-site construction workers. Typically, the external protective frame of the ladder cage is a spatial tubular truss structure, mainly composed of multiple columns, crossbars, and positioning columns and positioning cylinders at both ends of the columns, which are assembled by welding.

[0003] Currently, when welding and assembling the external protective frame of safety cages, most manufacturers still use traditional methods such as manual material placement, manual clamping, or relying solely on simple semi-automatic tooling for auxiliary positioning. This traditional assembly method has significant shortcomings. The core problem lies in the extreme limitations of the relative positioning between components. Specifically, because the frame is composed of multiple loose parts with complex spatial relationships, the alignment and relative position accuracy between the crossbars, columns, and the positioning columns / cylinders at both ends during manual placement and clamping almost entirely depends on the experience, visual judgment, and operational proficiency of the on-site operators.

[0004] This kind of operation method that relies too much on human factors will inevitably lead to the accumulation of errors. For example, workers' visual bias, fatigue caused by continuous operation, and inconsistent clamping force can all easily cause slight slippage and angular deviation of each pipe before welding, which in turn leads to dimensional deviation problems such as out-of-tolerance length and width dimensions, unequal diagonals, or misalignment of pipe concentricity in the formed frame.

[0005] Due to the lack of a high-precision mechanical collaborative positioning mechanism, it is difficult to maintain a high degree of consistency and standardization in the production of each overall frame, resulting in inconsistent batch quality. More seriously, in practical applications, safety cages are used in a modular form, stacked and plugged together layer by layer. Once a single cage frame exhibits deviations in the aforementioned dimensions and geometric tolerances, it will directly lead to the inability to accurately align the interfaces between adjacent cage modules. This not only seriously affects the smooth assembly of subsequent cage modules and reduces construction efficiency, but may even cause hidden stresses within the frame during forced assembly, disrupting the overall structural stress balance and thus creating serious safety hazards for high-altitude operations.

[0006] Therefore, it is necessary to design an intelligent welding device suitable for safety ladder cage workpieces to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing an intelligent welding device suitable for safety ladder cage workpieces. This invention solves the technical problems in existing technologies, such as dimensional deviations and poor overall frame consistency caused by manual positioning, which seriously affect the subsequent assembly of ladder cages. It also solves the technical pain point that tubular frames are difficult to demold and remove after complete welding due to interference from equipment components.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An intelligent welding device for safety ladder cage workpieces includes a base plate with two symmetrically arranged conveying components for conveying the crossbars of the frame. The base plate also includes a first feeding component and two sets of second feeding components, symmetrically arranged on both sides of the first feeding component. The device further includes a rotating component, a shifting mechanism, an internal support component, and a clamping component. The first feeding component sequentially rotates four columns to suitable positions and cooperates with the internal support component for support. The two sets of second feeding components are mounted on the shifting mechanism, enabling them to move towards or away from each other. The rotating component is drively connected to the first feeding component and the two sets of second feeding components, driving them to rotate synchronously. Three clamping components are mounted on the second feeding components to clamp and position the crossbars conveyed by the conveying components. The three clamping components are arranged in a U-shape, leaving the two crossbar positions at the bottom of the workpiece unloaded for feeding and welding, so that after complete welding, the U-shaped frame can be laterally pulled out from the first feeding component and removed.

[0009] In some possible implementations, the first feeding component includes: The mounting base is fixedly connected to the upper end of the base plate; A first ring is fixedly connected to the upper end of the fixed base, and a first discharge port is provided on the first ring; There are four arc-shaped blocks arranged in an array inside the first circular ring, and each arc-shaped block has a first placement groove on its outer side; A hollow cylinder is coaxially disposed inside the first ring, and the hollow cylinder is connected to the four arc-shaped blocks through the inner support assembly.

[0010] In some possible implementations, the internal support component includes: Multiple strip-shaped openings are provided and are formed on the outer wall of the hollow cylinder; The connecting rod is provided in multiple sets, and each connecting rod is rotatably connected to the inner wall of the arc-shaped block near the hollow cylinder. Two linear cylinders are provided, which are fixedly connected to the inner walls on the left and right sides of the hollow cylinder respectively; Two movable discs are provided, which are respectively fixedly connected to the telescopic ends of the two linear cylinders; the end of each connecting rod away from the arc block passes through the corresponding strip opening and is rotatably connected to the outer wall of the corresponding movable disc.

[0011] In some possible implementations, the second feeding component includes: The second ring has a second discharge port. A disc is disposed within the second ring; There are four second placement slots, which are arranged in an array on the outer wall of the disk. All four second placement slots are semi-circular slots. A closed baffle is provided on the side of each of the second placement slots away from the first ring.

[0012] In some possible implementations, the rotating component includes: Two U-shaped frames are provided, both of which are fixedly connected to the upper end of the base plate; Two fixing frames are provided, which are respectively fixedly connected to the upper ends of the two U-shaped frames; The first motor is fixedly connected to one of the mounting brackets; The gearbox is fixedly connected to a mounting frame on which the first motor is mounted, and the output shaft of the first motor is fixedly connected to the input shaft of the gearbox. Two rotating shafts are fixedly connected to the left and right sides of the hollow cylinder, respectively; one rotating shaft is rotatably connected to the corresponding fixed frame, and the other rotating shaft is fixedly connected to the output shaft of the gearbox.

[0013] In some possible implementations, keyways are provided on the outer walls of the rotating shafts on both sides; Two sliding keys are provided, which are fixedly connected to the inner walls of the circular holes in the centers of the two discs, and the two sliding keys are slidably connected in the corresponding keyways. Two limiting plates are provided, which are respectively fixedly connected to the opposite sides of the two second rings; Multiple stops are provided and are fixedly connected to the adjacent sides of the two second rings.

[0014] In some possible implementations, the displacement mechanism includes: The first slide rail has two sections, both of which are fixedly connected to the upper end of the base plate; Two sliding seats are provided, which are slidably connected to two first slide rails, and two second rings are respectively fixedly connected to the corresponding sliding seats; There are two bearing housings, both of which are fixedly connected to the upper end of the base plate; A bidirectional lead screw is installed between two bearing seats, and two sliding seats are respectively threaded to both ends of the bidirectional lead screw; The second motor is mounted on the base plate, and its output shaft end is fixedly connected to a bidirectional lead screw.

[0015] In some possible implementations, three sets of the gripping assemblies are mounted on adjacent sides of the two disks, the gripping assemblies comprising: A twin-shaft cylinder, which is mounted on the disc; The second slide rail is provided in two parts, both of which are mounted on the disc; The movable block is slidably connected to two second slide rails, and the telescopic end of the dual-axis cylinder is fixedly connected to the movable block; Two finger cylinders are provided and symmetrically mounted on the movable block; Multiple connecting blocks are provided, and each finger cylinder has two sliding ends fixedly connected to the connecting block; A clamping block is fixedly connected to the lower end of each of the connecting blocks.

[0016] The present invention has the following beneficial effects: Compared with the existing technology, the second placement slots on the left and right sides are used to place positioning columns and positioning cylinders respectively. When the clamping component clamps the crossbar, the shifting mechanism starts to operate. This action can not only clamp and position the four columns in the first feeding component for a second time, but also make the positioning columns and positioning cylinders in the second placement slots accurately aligned with the two ends of the columns. At the same time, the multiple clamped crossbars can also be accurately moved to the welding positions corresponding to the multiple columns. This multi-component linkage and one-step alignment mechanism reduces the errors caused by manual assembly, ensures the high consistency of the overall frame produced, and greatly facilitates the subsequent assembly into the external protective frame of the ladder cage. Compared to existing technologies, this method utilizes three uniquely designed clamping components arranged in a U-shape, intentionally leaving the two bottom crossbars unwelded. Once all other nodes of the frame are fully welded, the overall frame forms a downward-opening "U" shape. At this point, operators or robotic arms can directly pull the frame out laterally from the first ring and remove it, without the welded frame being unable to be removed due to obstruction by the central rotating shaft of the equipment, thus significantly improving material handling efficiency. Compared with the existing technology, the rotating component uses a long rotating shaft, a keyway and a sliding key on the disk to cooperate. When the displacement mechanism drives the two sets of second feeding components to move towards each other, the disk slides smoothly in the keyway through the sliding key. When flipping welding is required, the first motor can also drive the first feeding component and the second feeding components on both sides to rotate 360 ​​degrees together through the rotating shaft. The action is smooth and the structure is ingenious.

[0017] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of an intelligent welding device for safety ladder cage workpieces proposed in this invention; Figure 2 This is a schematic diagram of the structure of an intelligent welding device for safety ladder cage workpieces proposed in this invention from another perspective; Figure 3 This is a schematic diagram of the retraction component; Figure 4 for Figure 3 A sectional view; Figure 5 This is a schematic diagram of the disk structure; Figure 6 This is a schematic diagram of the clamping component. Figure 7 This is a schematic diagram of the rotating shaft. Figure 8 This is a schematic diagram of the completed frame welding.

[0019] In the diagram: 100 Base plate, 101 Conveying assembly, 102 Fixed frame, 103 U-shaped frame, 201 Fixed seat, 202 First discharge port, 203 Second ring, 204 Second discharge port, 205 Arc block, 206 First motor, 207 Rotating shaft, 208 Hollow cylinder, 209 First placement groove, 210 Second placement groove, 211 First ring, 212 Disc, 213 Gearbox, 301 First slide rail, 302 Sliding seat, 303 Second motor, 304 Bidirectional lead screw, 401 Limiting plate, 402 Keyway, 403 Sliding key, 404 Stop block, 501 Connecting rod, 502 Strip opening, 503 Moving disc, 504 Linear cylinder, 601 Dual-axis cylinder, 602 Second slide rail, 603 Moving block, 604 Finger cylinder, 605 Connecting block, 606 Clamping block. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Reference Figures 1-2 A smart welding device suitable for safety ladder cage workpieces includes a base plate 100 serving as the overall load-bearing foundation. Two conveying assemblies 101 are symmetrically arranged on the upper surface of the base plate 100. The conveying assemblies 101 are belt conveyors or chain conveyors, primarily used to orderly transport the frame crossbars to be welded to the designated gripping station of the device. A first feeding assembly is centrally located on the base plate 100, and two sets of second feeding assemblies are symmetrically distributed on either side of the first feeding assembly. In addition, the device is also equipped with an internal support assembly, a displacement mechanism, a rotating assembly, and a clamping assembly.

[0022] In some embodiments of this disclosure, reference is made to Figures 1-4 The first feeding assembly is used to rotate the four columns of the ladder cage to the appropriate position for feeding in sequence. Its structure includes a fixed base 201 fixedly connected to the upper end of the base plate 100. The top of the fixed base 201 is stably connected to a first ring 211. In order to facilitate feeding, the top of the first ring 211 is provided with a first discharge port 202 for the column to enter. A hollow cylinder 208 is coaxially suspended inside the first ring 211. Four arc-shaped blocks 205 are arranged in an array between the hollow cylinder 208 and the inner wall of the first ring 211. The outer side of each of the four arc-shaped blocks 205 is provided with a first placement groove 209 (semi-circular groove) for accommodating the column. The hollow cylinder 208 and the four arc-shaped blocks 205 are dynamically connected through an internal support assembly. The internal support assembly includes multiple strip-shaped openings 502 circumferentially opened along the outer wall of the hollow cylinder 208; horizontally arranged linear cylinders 504 are fixedly connected to the left and right side walls inside the hollow cylinder 208, the telescopic ends of the two linear cylinders 504 are arranged opposite each other, and each is fixedly connected to a movable disk 503; two connecting rods 501 are hinged to the side of each arc block 205 near the hollow cylinder 208, and the other ends of the two connecting rods 501 pass through the corresponding strip-shaped openings 502 and are rotatably connected to the outer wall of the corresponding movable disk 503, forming a linkage push-pull structure.

[0023] Specifically, when the equipment is in initial standby or ready to clamp the column, the two linear cylinders 504 inside the hollow cylinder 208 simultaneously retract towards the center or extend outward, causing the two moving discs 503 to undergo relative displacement within the hollow cylinder. Due to the oblique support of the connecting rod 501, the axial movement of the moving discs 503 is converted into the radial movement of the arc block 205. When the arc block 205 is radially pushed outward, the column placed in the first placement groove 209 will be firmly pressed against the inner wall of the first ring 211. At this time, the distance between the axis of the first placement groove 209 and the inner wall of the first ring 211 is equal to the radius of the column, achieving high-precision clamping and positioning of the column.

[0024] In some embodiments of this disclosure, reference is made to Figures 1-2 and Figure 5The second feeding assembly is used to place and position the positioning posts and positioning cylinders at both ends of the ladder cage frame. Its structure includes a second ring 203. The top of the second ring 203 is provided with a second feeding port 204 in the same direction as the first feeding port. A disc 212 is coaxially arranged on the inner side of the second ring 203. Four second placement slots 210 are arrayed on the outer circumference of the disc 212. These four second placement slots 210 are all semi-circular slots. In order to prevent the placed parts from slipping, a closed baffle is fixedly provided on the side of each second placement slot 210 away from the first ring 211. Since the positioning posts and positioning cylinders of the ladder cage are different in size, the aperture size of the second placement slots 210 on the left and right discs 212 is also designed differently to adapt to their radius size.

[0025] Specifically, during the step feeding process, the operator places the positioning column or positioning cylinder into the currently upward-facing second placement groove 210 through the second discharge port 204. After placement, the second placement groove 210 and the inner wall of the second ring 203 together form a closed limiting space. Since the distance is exactly equal to the radius of the corresponding pipe, the positioning part is firmly held on the edge of the disc 212 and changes position as the disc 212 rotates, without falling or shifting.

[0026] In some embodiments of this disclosure, reference is made to Figures 1-2 and Figure 7 The rotating assembly is responsible for step-by-step flipping of the entire workpiece to complete the loading, and then performing 360-degree rotation to meet the requirements of all-round welding. Its structure includes two U-shaped frames 103 fixedly connected to the upper end of the base plate 100. The upper end of each of the two U-shaped frames 103 is equipped with a fixed frame 102. The flange of the left fixed frame 102 is connected to the first motor 206 and the gearbox 213. The output shaft of the first motor 206 is fixedly connected to the input end of the gearbox 213 to achieve speed reduction and torque increase. The left and right ends of the hollow cylinder 208 are respectively coaxially fixedly connected to two rotating shafts 207; the outer end of the right rotating shaft 207 is rotatably connected to the right fixed frame 102 through a bearing, and the outer end of the left rotating shaft 207 is fixedly connected to the output shaft of the gearbox 213. To achieve power transmission while allowing axial sliding, elongated keyways 402 extending axially are provided on the outer cylindrical surfaces of both rotating shafts; circular holes are provided at the center of both discs 212, and sliding keys 403 are fixedly welded to the inner walls of the circular holes. The sliding keys 403 slide in the corresponding keyways 402. In addition, in order to maintain the axial position of the discs in the second rings, limit plates 401 are fixedly connected to the opposite sides of the two second rings 203, and multiple stops 404 are fixedly connected to the adjacent sides. The discs 212 are restricted in the second rings 203 by front and rear limit.

[0027] Specifically, the rotating assembly has two operating modes. During the feeding stage, the first motor 206 drives the gearbox 213 to rotate 90 degrees each time it receives a signal; the rotating shaft drives the hollow cylinder 208 to rotate, and through the cooperation of the keyway 402 and the sliding key 403, it synchronously drives the two left and right discs 212 to rotate 90 degrees, completing the step feeding of one station. During the positioning and welding stages, since the sliding key 403 can slide freely in the keyway 402, the rotational power of the rotating shaft will not only not interfere with the axial translation of the discs, but also allow the motor to drive the entire frame to achieve 360-degree continuous rotation without dead angles during welding.

[0028] In some embodiments of this disclosure, reference is made to Figures 1-2 The function of the transfer mechanism is to realize the axial insertion and closing positioning of the ladder cage component. Its structure includes two first slide rails 301 fixed parallel to the upper end of the base plate 100. Two sliding seats 302 are slidably engaged on the two first slide rails 301. The second rings 203 of the left and right sets of second feeding components are respectively fixedly installed on the corresponding sliding seats 302. A bidirectional lead screw 304 (with left-hand thread and right-hand thread at both ends) is also horizontally installed on the top of the base plate 100 through two bearing seats. The nut seats at the bottom of the two sliding seats 302 are respectively threaded to the two ends of the bidirectional lead screw 304.

[0029] Specifically, after all the columns, positioning columns, positioning cylinders, and crossbars have been loaded and clamped, the second motor 303 drives the bidirectional lead screw 304 to rotate in place. Based on the opposite rotation characteristics of the bidirectional thread, the unidirectional rotation of the lead screw is converted into the synchronous opposite linear movement of the two sliding seats 302 along the first slide rail 301. Under this action, the discs 212 on both sides, carrying the positioning columns / positioning cylinders, apply pressure to the end of the central column, realizing precise alignment, insertion, and final shaping between the components. After welding is completed, rotating the bidirectional lead screw in the opposite direction will allow the components on both sides to return to their initial positions, completing the unloading preparation.

[0030] In some embodiments of this disclosure, reference is made to Figure 6 The gripping assembly is used to precisely grab crossbars from the conveyor line and transfer them to the welding station. This equipment has three sets of gripping assemblies, which are installed on adjacent sides of two discs 212 and correspond to the positions of three second placement slots 210 on the discs. Each gripping assembly includes a dual-axis cylinder 601 mounted on the disc 212 via a bracket, and two parallel second slide rails 602. A U-shaped moving block 603 is slidably connected to both second slide rails 602. The piston rod extension end of the dual-axis cylinder 601 is fixedly connected to the moving block 603. Two finger cylinders 604 are symmetrically and invertedly mounted on the bottom of the moving block 603. Each finger cylinder 604 has two sliding ends connected to a semi-circular gripping block 606 via a connecting block 605. The overall distribution of the three sets of gripping assemblies forms a "door" shape.

[0031] Specifically, when the conveying component 101 conveys the crossbar to the side workstation of the equipment, the gripping component located at the corresponding position starts to work. First, the dual-axis cylinder 601 pushes the moving block 603 to extend downward along the second slide rail 602. Then, the finger cylinder 604 receives the air source signal and drives the two semi-circular gripping blocks 606 to close together, tightly gripping and locking the crossbar. Subsequently, the gripping component can not only rotate the crossbar with the disc under the drive of the motor, but also pull the crossbar to move horizontally during the operation of the transfer mechanism, ensuring that the crossbar is accurately delivered and close to the predetermined welding points of multiple columns. Since the three sets of gripping components are distributed in a gate shape, after the final welding is completed and the finger cylinder is released, there are two unwelded crossbar notches at the bottom of the frame, so that the operator can directly pull the finished U-shaped frame out horizontally from the first ring of the equipment.

[0032] It is worth noting that a rotary joint is connected to one of the rotating shafts 207, which is connected to an external air source. Each cylinder has an electromagnetic control valve at its interface. Meanwhile, this equipment is equipped with an intelligent central control system. During the processing of the ladder cage frame, two welding robots are placed at the front of the equipment to perform automated welding of the ladder cage frame. After the moving mechanism completes the closing, positioning, clamping of all columns, positioning columns, positioning cylinders and crossbars, the central control system will automatically send a "positioning ready" signal to the welding robot at the front of the equipment. After receiving the signal, the welding robot will immediately start spot welding or full welding. During the welding process, the central control system further controls the first motor 206 of the rotating component to drive the clamped ladder cage frame to perform a 360-degree intelligent rotation, so that every back side or dead corner weld can be accurately exposed within the working range of the robot.

[0033] The functional principle of this invention can be explained through the following operational methods: In the initial state of equipment operation, the internal support assembly is pre-opened. At this time, the distance between the axis of each first placement slot 209 set on the arc block and the inner wall of the first ring 211 is precisely defined as the radius of the column to be welded. Meanwhile, due to the different sizes of the positioning parts at both ends of the ladder cage frame, the sizes of the second placement slots 210 on the two side discs 212 are also different. The distance between the second placement slots 210 and the inner wall of the second ring 203 on their respective outer perimeters is exactly equal to the radius of the positioning column or positioning cylinder. This geometric spacing setting ensures that whether it is a column, positioning column or positioning cylinder, it can be clamped and limited by the inner wall of the outer ring and the inner placement slot after being placed, ensuring the coaxiality of the components. First, at the current upward-facing workstation, a manual or robotic arm sequentially places a column through the first discharge port 202 into the first placement slot 209, while simultaneously placing the corresponding positioning column and positioning cylinder through the second discharge port 204 into the corresponding second placement slots 210 on both sides; while placing these pipes, the conveying assembly 101 sends the crossbar to the designated position, and the clamping assembly corresponding to that workstation then moves accordingly. That is, the dual-axis cylinder 601 extends, the finger cylinder 604 drives the clamping block 606 to close, precisely clamping a horizontal bar, and then the dual-axis cylinder 601 returns to its original position. After the current set of components is loaded, the first motor 206 is started, which synchronously drives the internal support assembly and the two side discs 212 to rotate 90 degrees through the rotating shaft 207 and gearbox 213, so that the next empty placement slot is accurately aligned with the upper discharge port. Then, the above placement action is repeated, and so on, with the first motor driving each component to rotate in sequence, until all four columns and their corresponding four positioning columns and positioning cylinders are placed in place.

[0034] Since there are three sets of clamping components arranged in a U-shape, the crossbar is clamped only at three of the four stations during the cyclic feeding process, thus leaving the bottom open. After all components are placed and clamped, the transfer mechanism begins operation, with the bidirectional lead screw 304 rotating, causing the sliding seats 302 on both sides and the second feeding assembly to move towards the center. This translation process produces multiple synergistic effects: it not only axially clamps and ultimately positions the four columns from both ends, but also ensures that the positioning columns and positioning cylinders in the second placement slot 210 are precisely aligned with the ends of the columns; simultaneously, the multiple crossbars firmly held by the clamping assembly also move along with the translation, precisely moving to the predetermined welding positions on the surfaces of the four columns.

[0035] After assembly and positioning, the first motor 206 is started intermittently again, driving the overall frame to rotate 360 ​​degrees. This, in conjunction with the external welding robot, completes the full welding of each node. Since the equipment deliberately leaves the two bottom crossbars unwelded, the whole frame forms a U-shape. After welding is completed and each cylinder is released and reset, the displacement mechanism drives the two discs 212 to reset. At this point, the operator can smoothly pull the welded U-shaped frame out laterally from the first ring 211 and remove it.

[0036] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An intelligent welding device suitable for safety ladder cage workpieces, comprising a base plate (100), characterized in that: Two conveying assemblies (101) are symmetrically arranged on the base plate (100) for conveying the crossbars of the frame; The base plate (100) is provided with a first feeding component and two sets of second feeding components, and the two sets of second feeding components are symmetrically arranged on both sides of the first feeding component; It also includes a rotating assembly, a displacement mechanism, an internal support assembly, and a clamping assembly; The first feeding component is used to rotate the four columns to the appropriate positions in sequence and to provide support in conjunction with the internal support component; Two sets of the second feeding components are installed on the opposing mechanism, and can move towards or away from each other through the opposing mechanism; The rotating component is connected to the first feeding component and the two sets of the second feeding components in a transmission connection, and is used to drive them to rotate synchronously. The clamping assembly consists of three sets, which are installed on the second feeding assembly to clamp and position the crossbars conveyed by the conveying assembly (101). The three sets of clamping assemblies are arranged in a U-shape, leaving the two crossbar positions at the bottom of the workpiece empty so that the U-shaped frame can be pulled out laterally from the first feeding assembly and removed after the welding is completed.

2. The intelligent welding equipment for safety ladder cage workpieces according to claim 1, characterized in that: The first feeding component includes: The mounting base (201) is fixedly connected to the upper end of the base plate (100); The first ring (211) is fixedly connected to the upper end of the fixed base (201), and the first ring (211) is provided with a first discharge port (202). Four arc-shaped blocks (205) are arranged in an array inside the first circular ring (211), and each arc-shaped block (205) has a first placement groove (209) on its outer side. A hollow cylinder (208) is coaxially disposed inside the first ring (211), and the hollow cylinder (208) is connected to the four arc-shaped blocks (205) through the inner support assembly.

3. The intelligent welding equipment for safety ladder cage workpieces according to claim 2, characterized in that: The internal support component includes: Multiple strip-shaped openings (502) are provided and are formed on the outer wall of the hollow cylinder (208); The connecting rod (501) is provided in multiple sets, and each connecting rod (501) is rotatably connected to the inner wall of the arc block (205) near the hollow cylinder (208); Two linear cylinders (504) are provided, which are fixedly connected to the inner walls on the left and right sides of the hollow cylinder (208); Two movable disks (503) are provided, which are respectively fixedly connected to the telescopic ends of the two linear cylinders (504); the end of each connecting rod (501) away from the arc block (205) passes through the corresponding strip opening (502) and is rotatably connected to the outer wall of the corresponding movable disk (503).

4. The intelligent welding equipment for safety ladder cage workpieces according to claim 2, characterized in that: The second feeding component includes: The second ring (203) has a second discharge port (204) on it; A disk (212) is disposed within the second ring (203); There are four second placement slots (210), which are arranged in an array on the outer wall of the disk (212). All four second placement slots (210) are semi-circular slots. A closed baffle is provided on the side of each of the second placement slots (210) away from the first ring (211).

5. The intelligent welding equipment for safety ladder cage workpieces according to claim 4, characterized in that: The rotating component includes: Two U-shaped frames (103) are provided, both of which are fixedly connected to the upper end of the base plate (100); Two fixing frames (102) are provided, which are respectively fixedly connected to the upper ends of the two U-shaped frames (103); The first motor (206) is fixedly connected to one of the fixing brackets (102); The gearbox (213) is fixedly connected to the mounting bracket (102) on which the first motor is mounted, and the output shaft of the first motor (206) is fixedly connected to the input shaft of the gearbox (213). Two rotating shafts (207) are fixedly connected to the left and right sides of the hollow cylinder (208), respectively; one rotating shaft (207) is rotatably connected to the corresponding fixed frame (102), and the other rotating shaft (207) is fixedly connected to the output shaft of the gearbox (213).

6. The intelligent welding equipment for safety ladder cage workpieces according to claim 5, characterized in that: Keyways (402) are provided on the outer walls of the rotating shafts on both sides. Two sliding keys (403) are provided, which are fixedly connected to the inner walls of the circular holes in the centers of the two discs (212), and the two sliding keys (403) are slidably connected in the corresponding keyways (402); Two limiting plates (401) are provided, which are respectively fixedly connected to the opposite sides of the two second rings (203); Multiple stop blocks (404) are provided and are fixedly connected to the adjacent sides of the two second rings (203).

7. The intelligent welding equipment for safety ladder cage workpieces according to claim 4, characterized in that: The displacement mechanism includes: The first slide rail (301) has two sections, both of which are fixedly connected to the upper end of the base plate (100); Two sliding seats (302) are provided, which are slidably connected to the two first slide rails (301), and the two second rings (203) are respectively fixedly connected to the corresponding sliding seats (302); There are two bearing seats, both of which are fixedly connected to the upper end of the base plate (100); A two-way lead screw (304) is installed between the two bearing seats, and the two sliding seats (302) are respectively threaded to the two ends of the two-way lead screw (304); The second motor (303) is mounted on the base plate (100), and its output shaft end is fixedly connected to the bidirectional lead screw (304).

8. The intelligent welding equipment for safety ladder cage workpieces according to claim 4, characterized in that: Three sets of the clamping assemblies are mounted on adjacent sides of the two disks (212), the clamping assemblies comprising: A twin-shaft cylinder (601) is mounted on the disc (212); There are two second slide rails (602), both of which are mounted on the disc (212); The movable block (603) is slidably connected to the two second slide rails (602), and the telescopic end of the dual-axis cylinder (601) is fixedly connected to the movable block (603); Two finger cylinders (604) are provided and are symmetrically installed on the movable block (603); Multiple connecting blocks (605) are provided, and the two sliding ends of each finger cylinder (604) are fixedly connected to the connecting block (605). A clamping block (606) is fixedly connected to the lower end of each of the connecting blocks (605).

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