Welding equipment for ferrous metal smelting rolled product

Abstract

The invention relates to the technical field of metal calendered products, in particular to black metal smelting calendered product welding equipment which comprises a welding seat, a placement bin and a manipulator, a pair of mounting seats is fixedly arranged at the top of the welding seat, and a first I-shaped plate and a second I-shaped plate are vertically and slidably arranged on the two mounting seats correspondingly; a first motor is fixedly arranged on the second I-shaped plate, a rotating plate is fixedly arranged at the output end of the first motor, and a first rack and a second rack horizontally and slidably sleeve the rotating plate; a third motor is fixedly arranged on the rotating plate, a spline shaft is fixedly arranged at the output end of the third motor, the spline shaft is horizontally and slidably sleeved with a moving seat, and a welding head is rotationally arranged below the moving seat; a synchronization component; a moving assembly; a rotating assembly; and an inflation assembly. Through cooperative arrangement of the spline shaft and other components, the welding initial posture standard is guaranteed, the welding device is suitable for welding of two metal plates with different thickness differences, and then the welding quality problem caused by posture deviation is solved.

Description

Technical Field

[0001] This invention relates to the field of metal rolled products technology, and more particularly to a welding equipment for ferrous metal smelting rolled products. Background Technology

[0002] Ferrous metal smelting refers to the industrial process of smelting and refining iron, chromium, and manganese ores to produce metal billets, which are used as raw materials for subsequent processing. Ferrous metal rolled products have a limited range of forms and are difficult to adapt to the needs of complex components. To achieve component splicing and enhance structural strength, welding processes for rolled products are required to meet the assembly needs of actual production.

[0003] The prior art, such as the intelligent laser welding device for multi-angle adjustment of metal parts disclosed in announcement number CN120885865A, includes a device body and a welding table fixedly installed on its top surface. The surface of the welding table is fixedly installed with a placement frame. The metal plate to be welded is placed inside the two placement frames. The corresponding ends of the two placement frames are respectively provided with a first fixed frame and a second fixed frame. The inner sides of the first fixed frame and the second fixed frame are provided with sliding grooves.

[0004] However, this technical solution has the following problems in actual use: The slider drives the rotating shaft and gear to rotate through its own translational motion. The gear moves synchronously with the slider and rotates due to the meshing of the first and second toothed plates, causing the welding head to swing back and forth slightly to complete the fish-scale welding operation of two metal plates. However, since the welding head can only rotate around the axis of the rotating shaft with the gear, it only has a single rotation mode and cannot adjust the welding posture angle, making it difficult to match the welding requirements of plates with different thicknesses. This leads to insufficient weld fit and ultimately restricts the improvement of welding process adaptability and finished product quality. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that in the prior art, the welding head can only follow the gear and rotate around the axis of rotation, which only has a single rotation form and cannot realize the adjustment of the welding posture and tilt angle, making it difficult to match the welding requirements of plates of different thicknesses. Therefore, a welding equipment for ferrous metal smelting and rolling products is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a welding device for ferrous metal smelting and rolling products, comprising a welding seat, a placement chamber with a clamping part, and a controller. A pair of mounting seats are fixedly provided on the top of the welding seat. A first I-beam and a second I-beam are vertically slidably provided on the two mounting seats respectively. A first motor is fixedly provided on the second I-beam. A rotating plate is fixedly provided at the output end of the first motor. A first rack and a second rack are horizontally slidably sleeved on the rotating plate. A third motor is fixedly mounted on the rotating plate, and a splined shaft is fixedly mounted on the output end of the third motor. A movable seat is horizontally slidably mounted on the splined shaft, and a welding head is rotatably mounted below the movable seat. The system also includes: a synchronization component for driving the first rack and the second rack to slide synchronously relative to each other; a moving component for driving the movable seat to move horizontally; and a rotating component for driving the welding head to rotate. An inflatable assembly is used to provide protective gas to the weld area during welding.

[0007] Preferably, the synchronization component includes: connecting ears, a pair of connecting ears fixedly disposed on the top of the rotating plate; a bidirectional lead screw, the bidirectional lead screw being rotatably disposed on the opposite sidewalls of the two connecting ears, and the first rack and the second rack being threadedly connected to the bidirectional lead screw; a second motor, the second motor being fixedly disposed on the connecting ears, and the second motor being used to drive the bidirectional lead screw to rotate; and sliding holes, the sliding holes being respectively formed on the first rack and the second rack.

[0008] Preferably, the moving component includes: a fixed plate, which is fixedly sleeved on the splined shaft; a fourth motor, which is fixedly mounted on the fixed plate; and a moving screw, which is coaxially and fixedly connected to the output end of the fourth motor, and the moving base and the moving screw are threadedly connected.

[0009] Preferably, the splined shaft, the first motor, and the fourth motor are coaxially arranged, and the welding head is equipped with a verticality instrument for monitoring verticality.

[0010] Preferably, the inflation assembly includes: an air supply tank, which is fixedly mounted on the movable base; a guide tube, which is mounted on the air supply tank and corresponds to the welding head; and a solenoid valve, which is mounted on the guide tube.

[0011] Preferably, the mounting base has a limiting port, and a hydraulic cylinder is fixedly installed in the limiting port, and the hydraulic cylinder is fixedly connected to the corresponding first I-beam and second I-beam respectively.

[0012] Preferably, both the first rack and the second rack are provided with a plurality of connecting blocks at their bottoms, and a pressure sensor is fixedly provided at the bottom end of each connecting block, with an arc-shaped transmission block provided on the pressure sensor.

[0013] Preferably, the teeth of the first rack and the second rack are opposite each other, and the teeth on the first rack and the teeth on the second rack are arranged in a staggered and spaced manner.

[0014] Preferably, a rotating rod is rotatably provided at the bottom of the movable seat, and a gear is fixedly provided at the bottom end of the rotating rod, the gear being configured correspondingly with the first rack and the second rack.

[0015] Preferably, the rotating assembly includes: a vertical plate, a pair of vertical plates fixedly disposed at the bottom of the gear; a connecting shaft, the connecting shaft being rotatably disposed on the vertical plate; and a fifth motor, the fifth motor being fixedly disposed on the vertical plate and used to drive the connecting shaft to rotate.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: 1. This invention sets up a first motor and a rotating plate, with a first rack and a second rack mounted on the rotating plate. The welding head moves in conjunction with the rotating plate and achieves vertical alignment between the welding head and the weld seam under the synchronous deflection driven by the first motor. This ensures the standard initial welding posture, adapts to the welding of two metal plates with different thicknesses, and thus avoids welding quality problems caused by posture deviation.

[0017] 2. The present invention uses an inflatable component and a vertical instrument to set up the fifth motor to connect the welding head. The inflatable component is set up in accordance with the welding head. Under the protection of air supply and the fine adjustment of the fifth motor, the molten pool is covered and protected and the welding posture is corrected, reducing porosity and oxidation defects, thereby improving the welding quality of ferrous metal rolled products. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a welding equipment for ferrous metal smelting and rolling products proposed in this invention; Figure 2 This is a schematic diagram of the mounting base in a welding equipment for ferrous metal smelting and rolling products proposed in this invention; Figure 3 This is a schematic diagram of the rotating plate in a welding equipment for ferrous metal smelting and rolling products proposed in this invention; Figure 4 This is a schematic diagram of the fourth motor in a welding equipment for ferrous metal smelting and rolling products proposed in this invention. Figure 5 This is a schematic diagram of a gas supply tank in a welding equipment for ferrous metal smelting and rolling products proposed in this invention. Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of a sensor in a welding equipment for ferrous metal smelting and rolling products proposed in this invention.

[0019] In the diagram: 1. Welding seat; 2. Placement chamber; 3. Controller; 4. Mounting seat; 41. Limit port; 42. Hydraulic cylinder; 43. First I-beam; 44. Second I-beam; 441. First motor; 5. Rotating plate; 51. First rack; 511. Connecting block; 512. Pressure sensor; 513. Arc-shaped transmission block; 52. Second rack; 53. Connecting lug; 54. Bidirectional lead screw; 55. Second motor; 56. Third motor; 561. Splined shaft; 57. Sliding hole; 6. Fixing plate; 61. Fourth motor; 611. Moving screw; 612. Moving seat; 7. Air supply tank; 71. Guide tube; 72. Solenoid valve; 8. Rotating rod; 81. Gear; 82. Vertical plate; 83. Connecting shaft; 84. Fifth motor; 85. Verticality instrument; 9. Welding head. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figures 1-7 A welding device for ferrous metal smelting and rolling products includes a welding base 1, a placement chamber 2 with clamping parts, and a controller 3. The welding base 1 serves as the overall installation foundation of the equipment, the placement chamber 2 is used to fix the plates to be welded, and the controller 3 enables centralized control of all components. The three components work together to form the main support structure of the equipment. A pair of mounting seats 4 are fixedly installed on the top of the welding base 1. The two mounting seats 4 are symmetrically distributed on both sides of the top of the welding base 1, providing stable installation support for the subsequent lifting components. The mounting seats 4 serve as the core support carrier of the lifting components. Their symmetrical distribution design ensures that the first I-beam 43 and the second I-beam 44 are subjected to uniform force, avoiding excessive force on one side that could cause deviation in the lifting action. The mounting seats 4 are firmly fixed to the welding base 1, effectively bearing the entire weight of the first I-beam 43, the second I-beam 44, and the subsequent welding components, while resisting vibrations generated during the welding process, preventing the mounting seats 4 from loosening or shifting, and ensuring the accuracy of the lifting action. The vertical sliding fit between the first I-beam 43 and the second I-beam 44 and the mounting base 4 adopts a precise guide structure, which can minimize the sliding friction between the two, allowing the I-beams to slide flexibly and smoothly along the vertical direction of the mounting base 4 without jamming or offset, thus ensuring the accuracy of height adjustment.

[0022] Two mounting bases 4 each have a first I-beam 43 and a second I-beam 44 vertically sliding on them. The first I-beam 43 and the second I-beam 44 can slide flexibly vertically along the mounting bases 4 to achieve height adjustment. Furthermore, the first I-beam 43 and the second I-beam 44 can be driven to rise and fall vertically synchronously by controlling the hydraulic cylinder 42, thereby flexibly adjusting the height of the welding head 9. This ensures that the welding head maintains the optimal laser welding distance between the welding head and the plate to be welded. It is suitable for ferrous metal smelting and rolling plates of different thicknesses. Whether it is a thin or thick rolled plate, the height adjustment ensures welding stability and quality, avoiding problems such as over-melting and incomplete penetration. In the above structure, the clamping part inside the placement chamber 2 fits tightly to the outline of the plate, ensuring that the plate does not wobble at all during the entire welding process. This is a mature existing technology, usually using two relatively movable clamping plates for clamping and fixing, and therefore will not be described in detail here.

[0023] A first motor 441 is fixedly mounted on the second I-beam 44. The first motor 441 provides power output to the rotating components. A rotating plate 5 is fixedly mounted on the output end of the first motor 441. The rotating plate 5 can rotate synchronously under the drive of the first motor 441. A first rack 51 and a second rack 52 are horizontally slidably mounted on the rotating plate 5. The first rack 51 and the second rack 52 can slide horizontally along the rotating plate 5 to achieve spacing adjustment. The first motor 441 is the sole power source for the rotation of the rotating plate 5. Its fixed connection with the second I-beam 44 is firm and reliable, which can resist the vibration generated during the operation of the first motor 441, prevent the first motor 441 from loosening or shifting, and ensure that the first motor 441 can continuously and stably output power. The output end of the first motor 441 is rigidly connected to the rotating plate 5. This connection method ensures that the rotating plate 5 and the output end of the first motor 441 rotate completely synchronously. After the first motor 441 is started, the rotational power of the output end will be directly transmitted to the rotating plate 5, causing the rotating plate 5 to rotate around the axis of the output end of the first motor 441. The operator can flexibly adjust the rotation angle of the rotating plate 5 according to the welding position requirements of the plate to be welded, thereby driving the first rack 51, the second rack 52 and the subsequent welding head 9 to rotate synchronously, so that the welding head 9 can be accurately aligned with the part to be welded and adapt to the welding requirements of different positions.

[0024] A third motor 56 is fixedly mounted on the rotating plate 5. The third motor 56 provides power to the rotary transmission component. A spline shaft 561 is fixedly mounted on the output end of the third motor 56. The spline shaft 561 can transmit the rotational power of the third motor 56 and simultaneously realize the guiding sliding of the moving seat 612. The moving seat 612 is horizontally slidably mounted on the spline shaft 561. The moving seat 612 can slide horizontally along the spline shaft 561, driving the welding head 9 to move synchronously. The welding head 9 is rotatably mounted below the moving seat 612. The welding head 9 is preferably, but not limited to, using the MZ-1000 model. MZ-1000 is an existing mature technology, so it will not be described in detail here. It is used to perform specific welding operations and can realize multi-posture movement. The third motor 56 is fixedly mounted on the rotating plate 5. Its installation position is rationally planned to ensure its own installation stability and avoid interference with components such as the first rack 51 and the second rack 52, ensuring that each component can operate independently and smoothly. As the power core of the rotary transmission component, the third motor 56 can output stable and continuous rotational power. Its output end is rigidly fixedly connected to the spline shaft 561, ensuring that the spline shaft 561 can rotate synchronously with the output end of the third motor 56, accurately transmitting the rotational power of the third motor 56 to subsequent components without power loss or transmission deviation.

[0025] The spline shaft 561 serves a dual function of power transmission and guiding sliding. Its structural design fully considers the needs of both. The surface of the spline shaft 561 is provided with precise spline protrusions. This structure not only enables efficient transmission of rotational power but also provides precise guidance for the moving seat 612. The moving seat 612 mates with the spline shaft 561 through an internal spline hole and is fitted onto the spline shaft 561. This mating method ensures that the moving seat 612 can slide flexibly along the horizontal direction of the spline shaft 561 and rotate synchronously with the spline shaft 561, achieving coordinated horizontal and rotational movements. This, in turn, drives the welding head 9 below to achieve multi-pose movement, adapting to welding requirements at different angles and positions.

[0026] It also includes synchronization components, movement components, inflation components, and rotation components.

[0027] The synchronization component ensures the sliding synchronization of the first rack 51 and the second rack 52, providing a foundation for the subsequent meshing transmission of gears and racks, and avoiding deviations in the movement trajectory of the welding head 9 due to rack offset. The moving component drives the moving seat 612 to move horizontally, realizing the welding feed of the welding head 9 and ensuring the uniformity and integrity of the welding trajectory. The rotating component realizes the fine adjustment of the angle of the welding head 9, ensuring that the welding head 9 always maintains the optimal welding angle with the weld. The gas filling component provides protective gas, isolating the influence of air on the weld pool and reducing welding defects. The four components work together to form a complete welding system with the main components such as the welding seat 1, the placement chamber 2, and the controller 3, ensuring that the equipment can adapt to ferrous metal smelting and rolling plates of different specifications and thicknesses, and achieve efficient and high-quality welding operations. The purpose of the synchronous relative sliding of the first rack 51 and the second rack 52 is to achieve rapid switching between the fish scale welding mode and the straight line welding mode.

[0028] The synchronization components include: a connecting lug 53, a bidirectional lead screw 54, a second motor 55, and a sliding hole 57.

[0029] A pair of connecting ears 53 are fixedly mounted on the top of the rotating plate 5. The two connecting ears 53 are arranged opposite each other to support the bidirectional lead screw 54. The bidirectional lead screw 54 is rotatably mounted on the opposite sidewalls of the two connecting ears 53. The bidirectional lead screw 54 can rotate flexibly under the support of the connecting ears 53. The first rack 51 and the second rack 52 are both threadedly connected to the bidirectional lead screw 54. The rotation of the bidirectional lead screw 54 drives the two racks to slide synchronously. The second motor 55 is fixedly mounted on the connecting ears 53. The second motor 55 provides rotational power to the bidirectional lead screw 54 and is used to drive the bidirectional lead screw 54 to rotate. Sliding holes 57 are respectively opened on the first rack 51 and the second rack 52. The sliding holes 57 can be fitted with guide components to reduce the friction when the racks slide and ensure smooth sliding.

[0030] The moving components include: a fixed plate 6, a fourth motor 61, and a moving screw 611.

[0031] The fixing plate 6 is fixedly sleeved on the spline shaft 561. The fixing plate 6 is used to fix and support the fourth motor 61 and the moving screw 611. The fourth motor 61 is fixedly mounted on the fixing plate 6. The fourth motor 61 provides power for the horizontal movement of the moving seat 612. The output end of the moving screw 611 and the fourth motor 61 are coaxially fixedly connected and can rotate synchronously under the drive of the fourth motor 61. The moving seat 612 and the moving screw 611 are threadedly connected, and the rotational motion is converted into linear motion through thread transmission.

[0032] The connecting lugs 53 serve as support components for the bidirectional lead screw 54. Their paired and relatively arranged design provides symmetrical and stable support for the bidirectional lead screw 54, ensuring that it can rotate flexibly and smoothly between the two connecting lugs 53 without tilting or wobbling. The fixed connection between the connecting lugs 53 and the rotating plate 5 is firm and reliable, employing a rigid connection method. This connection can withstand the weight of the bidirectional lead screw 54 and the forces generated during its rotation, preventing the connecting lugs 53 from loosening or shifting. This ensures the rotational stability of the bidirectional lead screw 54 and provides a fundamental guarantee for the subsequent synchronous sliding of the rack. The installation positions of the two connecting lugs 53 are precisely calibrated to ensure that their central axes coincide and remain consistent with the axis of the bidirectional lead screw 54, preventing the bidirectional lead screw 54 from jamming or uneven power transmission due to installation deviations.

[0033] The bidirectional lead screw 54, as the core component driving the synchronous sliding of the first rack 51 and the second rack 52, has a precision-machined overall structure with two sections of threads running in opposite directions on its surface. The two sections of threads have consistent precision and uniform pitch, ensuring a precise fit with the threads of the two racks. Both ends of the bidirectional lead screw 54 are connected to the connecting lugs 53 via precise bearings. The bearings minimize rotational friction between the bidirectional lead screw 54 and the connecting lugs 53, allowing the bidirectional lead screw 54 to rotate flexibly and smoothly with the support of the connecting lugs 53, without any jamming or abnormal noise during rotation. When the bidirectional lead screw 54 rotates under the drive of the second motor 55, because its two ends of the threads run in opposite directions, and the first rack 51 and the second rack 52 are respectively connected to the two sections of threads, they drive the two racks to slide synchronously in opposite directions, achieving precise adjustment of the distance between them. This adjustment method ensures that the sliding speed and sliding distance of the two racks are consistent, avoiding misalignment and ensuring the precise meshing of subsequent gears and racks.

[0034] The sliding hole 57 serves as a guide auxiliary component for the sliding of the rack. It is respectively opened on the first rack 51 and the second rack 52. Its opening position is precisely planned and corresponds precisely to the guide component on the rotating plate 5. The guide component passes through the sliding hole 57 and can provide precise guidance for the sliding of the rack, avoiding left and right wobbling or deviation when the rack slides.

[0035] The spline shaft 561, the first motor 441, and the fourth motor 61 are coaxially arranged. This coaxiality ensures coaxial power transmission, reduces transmission deviation, and improves motion accuracy. A verticality gauge 85 is installed on the welding head 9 to monitor perpendicularity. The model of the verticality gauge 85 is preferred but not limited to DL-800, as DL-800 is a mature technology and will not be discussed further here. It can monitor the perpendicularity between the welding head 9 and the weld in real time, providing data support for angle fine-tuning. Furthermore, the verticality gauge 85 is fixedly installed at the center of the front side of the welding head 9, consistent with the welding direction. It can capture the perpendicularity deviation between the welding head and the weld to be welded in real time and transmit the monitoring data to the controller 3. When the deviation exceeds a set threshold, the controller 3 can automatically control the rotation component to start, fine-tuning the angle of the welding head 9 to ensure that the welding head 9 always remains perpendicular to the weld, improving weld formation quality.

[0036] The vertical gauge 85's automatic monitoring and fine-tuning design effectively avoids welding angle deviations caused by human error or equipment malfunction, ensuring weld quality and reducing welding defects. Simultaneously, it eliminates the need for real-time manual adjustments, reducing operator workload, improving automation and efficiency, and enabling the equipment to withstand long-duration, high-intensity welding operations, further enhancing its practicality and reliability.

[0037] The central axes of the spline shaft 561, the first motor 441, and the fourth motor 61 are kept coincident, ensuring coaxiality during power transmission, reducing deviations and losses, and preventing issues such as uncoordinated movement and trajectory deviations of components due to axis misalignment. The first motor 441 drives the rotating plate 5 to rotate, and the spline shaft 561 rotates synchronously with the rotating plate 5. The fourth motor 61 drives the moving screw 611 to rotate. The coaxial arrangement of the three motors allows these rotational and linear movements to coordinate with each other, ensuring precise and controllable movement trajectory of the welding head 9, improving welding accuracy, and preventing welding defects such as weld seam misalignment and poor forming due to transmission deviations.

[0038] The inflation assembly includes: an air supply tank 7, a pressure sensor 512, and an arc-shaped transmission block 513.

[0039] The gas supply tank 7 is preferably, but not limited to, the CG-10L model. CG-10L is a mature existing technology, so it will not be described in detail here. It is fixedly mounted on the movable base 612. The gas supply tank 7 is used to store the shielding gas required for welding and can move synchronously with the movable base 612. The gas supply tank 7 is equipped with a power pump, which provides stable gas supply power to ensure that the shielding gas can be continuously and smoothly delivered to the welding area. The guide tube 71 is mounted on the gas supply tank 7. The guide tube 71 is used to deliver the shielding gas and corresponds to the welding head 9, so that the shielding gas can be accurately delivered to the welding area. The solenoid valve 72 is mounted on the guide tube 71. The solenoid valve 72 can control the opening and closing of the guide tube 71, the flow rate and concentration of the shielding gas, and accurately regulate the shielding gas supply parameters to adapt to the needs of different welding scenarios. In addition, the gas filling component can precisely control the flow rate and concentration of the protective gas through the solenoid valve 72, adapting to the welding requirements of ferrous metal smelting and rolling products of different materials. The guide tube 71 adopts an inclined arc setting, which can guide the protective gas in a directional airflow, accurately blowing the protective gas towards the molten pool area to be welded. At the same time, the guide tube 71 is equipped with two solenoid valves 72. During welding, one solenoid valve can be opened and the other closed according to actual needs, forming a directional airflow, which quickly guides the air, fumes and other non-protective gases in the welding area to the other side for discharge, rather than discharge along the weld seam direction, further reducing defects such as welding porosity and slag inclusions, and ensuring welding quality.

[0040] The mounting base 4 has a limiting port 41, which is used to install and fix the hydraulic cylinder 42, and at the same time, it limits the movement of the hydraulic cylinder 42. The hydraulic cylinder 42 is fixedly installed in the limiting port 41. The hydraulic cylinder 42 provides power for the lifting and lowering of the I-beam plate, and the hydraulic cylinder 42 is fixedly connected to the corresponding first I-beam plate 43 and second I-beam plate 44 respectively, which can synchronously drive the two I-beam plates to lift and lower vertically.

[0041] The bottom of both the first rack 51 and the second rack 52 is provided with several connecting blocks 511. The connecting blocks 511 are used to connect the rack and the pressure sensor 512. The several connecting blocks 511 are evenly distributed on the bottom of the rack. The pressure sensor 512 is fixedly installed at the bottom of the connecting block 511. The pressure sensor 512 can detect the contact pressure between the rack and the plate. The pressure sensor 512 is provided with an arc-shaped transmission block 513. The arc-shaped transmission block 513 can fit the surface of the plate with different thicknesses to ensure sufficient contact and avoid scratching the plate.

[0042] The teeth of the first rack 51 and the second rack 52 are opposite each other, and the teeth on the first rack 51 and the teeth on the second rack 52 are staggered and spaced apart. This tooth distribution allows the gear 81 to mesh alternately with the two racks, driving the welding head 9 to perform fish scale welding.

[0043] The bottom of the movable seat 612 is rotatably equipped with a rotating rod 8, which can rotate flexibly to provide support for the gear 81. The bottom end of the rotating rod 8 is fixedly equipped with a gear 81, which can drive the rotating rod 8 to rotate synchronously. The gear 81 is correspondingly set with the first rack 51 and the second rack 52, and can achieve precise meshing transmission with the two racks.

[0044] The rotating assembly includes: a vertical plate 82, a connecting shaft 83, and a fifth motor 84.

[0045] A pair of vertical plates 82 are fixedly mounted on the bottom of the gear 81. The two vertical plates 82 are arranged opposite each other to provide mounting support for the connecting shaft 83 and the fifth motor 84. The connecting shaft 83 is rotatably mounted on the vertical plate 82. The connecting shaft 83 can rotate flexibly under the support of the vertical plate 82, driving the welding head 9 to rotate synchronously. The fifth motor 84 is fixedly mounted on the vertical plate 82. The fifth motor 84 provides power for the fine adjustment of the angle of the welding head 9 and is used to drive the connecting shaft 83 to rotate.

[0046] The functional principle of this invention can be explained through the following operational methods: When performing fish-scale welding on metal plates of different thicknesses, the first motor 441 is started first, driving the rotating plate 5 to rotate. The rotating plate 5 synchronously drives the first rack 51, the second rack 52, and the fourth motor 61 to rotate. The fourth motor 61 drives the spline shaft 561 to rotate, which in turn drives the moving seat 612 to rotate, thereby causing the verticality indicator 85 below the moving seat 612 and the welding head 9 to deflect synchronously. During this operation, the hydraulic cylinder 42 is started simultaneously, driving the first I-beam 43 and the second I-beam 44 to move vertically synchronously, causing the first rack 51 and the second rack 52 to contact the metal plates, so that they are respectively attached to metal plates of different thicknesses. After being squeezed, the pressure sensor 512 outputs the corresponding pressure value. At this time, the welding head 9 remains perpendicular to the weld.

[0047] Subsequently, the verticality of the welding head 9 is monitored in real time by the verticality instrument 85. If there is a deviation in posture, the fifth motor 84 is started. The fifth motor 84 drives the connecting shaft 83 to rotate, and the connecting shaft 83 drives the welding head 9 to deflect, completing the angle fine adjustment and ensuring that the welding head 9 and the weld always remain perpendicular.

[0048] During the actual welding process, the gas supply assembly is activated, and the protective gas in the gas supply tank 7 is delivered to the weld position via the guide pipe 71. The flow rate and concentration of the protective gas can be adjusted by the solenoid valve 72. Subsequently, the fourth motor 61 is activated, which drives the moving screw 611 to rotate. The moving screw 611 drives the moving seat 612 to move horizontally. The gear 81 reciprocates and meshes with the first rack 51 and the second rack 52, driving the welding head 9 to complete the fish-scale welding operation.

[0049] If fish-scale welding is not required, start the second motor 55. The second motor 55 drives the bidirectional lead screw 54 to rotate. The bidirectional lead screw 54 drives the first rack 51 and the second rack 52 to separate relative to each other, disengaging them from the gear 81. This allows direct control of the horizontal movement of the welding head 9, thus completing the conventional straight-line welding operation.

[0050] The above description is only a preferred embodiment 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. A welding device for ferrous metal smelting and rolling products, comprising a welding stand (1), a placement chamber (2) provided with a clamping part, and a controller (3), characterized in that, The welding base (1) is fixedly provided with a pair of mounting bases (4). The two mounting bases (4) are respectively vertically slidably provided with a first I-beam plate (43) and a second I-beam plate (44). The second I-beam plate (44) is fixedly provided with a first motor (441). The output end of the first motor (441) is fixedly provided with a rotating plate (5). The rotating plate (5) is horizontally slidably fitted with a first rack (51) and a second rack (52). A third motor (56) is fixedly mounted on the rotating plate (5), and a spline shaft (561) is fixedly mounted on the output end of the third motor (56). A moving seat (612) is horizontally slidably mounted on the spline shaft (561), and a welding head (9) is rotatably mounted below the moving seat (612). The device also includes: a synchronization component, which drives the first rack (51) and the second rack (52) to slide synchronously relative to each other; a moving component, which drives the moving seat (612) to move horizontally; a rotating component, which drives the welding head (9) to rotate; and an air-filling component, which provides protective gas to the welding area during welding.

2. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The synchronization component includes: connecting ears (53), a pair of connecting ears (53) fixedly disposed on the top of the rotating plate (5); a bidirectional lead screw (54), the bidirectional lead screw (54) being rotatably disposed on the opposite sidewalls of the two connecting ears (53), and the first rack (51) and the second rack (52) being threadedly connected to the bidirectional lead screw (54); a second motor (55), the second motor (55) being fixedly disposed on the connecting ears (53), and the second motor (55) being used to drive the bidirectional lead screw (54) to rotate; and sliding holes (57), the sliding holes (57) being respectively opened on the first rack (51) and the second rack (52).

3. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The moving component includes: a fixed plate (6), which is fixedly sleeved on the spline shaft (561); a fourth motor (61), which is fixedly mounted on the fixed plate (6); and a moving screw (611), whose output ends are coaxially fixedly connected to the fourth motor (61), and the moving seat (612) and the moving screw (611) are threadedly connected.

4. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The spline shaft (561), the first motor (441) and the fourth motor (61) are coaxially arranged, and a verticality instrument (85) for monitoring verticality is provided on the welding head (9).

5. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The inflation assembly includes: an air supply tank (7), which is fixedly mounted on the movable seat (612); a guide tube (71), which is mounted on the air supply tank (7) and corresponds to the welding head (9); and a solenoid valve (72), which is mounted on the guide tube (71).

6. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The mounting base (4) has a limiting port (41), and a hydraulic cylinder (42) is fixedly installed in the limiting port (41). The hydraulic cylinder (42) is fixedly connected to the corresponding first I-beam (43) and second I-beam (44).

7. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The bottom of the first rack (51) and the second rack (52) are provided with a plurality of connecting blocks (511), and a pressure sensor (512) is fixedly provided at the bottom of the connecting block (511), and an arc-shaped transmission block (513) is provided on the pressure sensor (512).

8. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The teeth of the first rack (51) and the second rack (52) are opposite each other, and the teeth on the first rack (51) and the teeth on the second rack (52) are arranged in a staggered and intermittent manner.

9. The welding equipment for ferrous metal smelting and rolling products according to claim 1, characterized in that, The bottom of the movable seat (612) is rotatably provided with a rotating rod (8), and a gear (81) is fixedly provided at the bottom end of the rotating rod (8). The gear (81) is correspondingly provided with the first rack (51) and the second rack (52).

10. A welding equipment for ferrous metal smelting and rolling products according to claim 9, characterized in that, The rotating assembly includes: a vertical plate (82), a pair of vertical plates (82) fixedly disposed at the bottom of the gear (81); a connecting shaft (83), the connecting shaft (83) being rotatably disposed on the vertical plate (82); and a fifth motor (84), the fifth motor (84) being fixedly disposed on the vertical plate (82), and the fifth motor (84) being used to drive the connecting shaft (83) to rotate.

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