A frame structure welding machine and welding method

Abstract

The application discloses a kind of frame structure welding machine and welding method, belong to welding technical field, including support frame;Lifting mechanism, including lifting frame;Lifting frame slidingly disposed in the support frame;Adjusting mechanism, including two clamping components;The clamping component is movably arranged on the lifting frame, for installing the frame to be welded;Two the clamping component drives respective frame to the middle and approaches and abuts;Wherein, the frame structure welding machine further includes first welding gun component and second welding gun component;First welding gun component and second welding gun component are respectively slidably arranged on the upper and lower sides of the welding position.The application is adjusted by multidimensional structure and automatic transmission cooperation, improves the freedom and adaptability of frame welding, meets the welding positioning needs of different specifications, different angle frames, without manual repeated adjustment of alignment, reduces labor intensity.Double welding gun is used to synchronize welding, improves welding efficiency and weld forming quality, and ensures reliable welding strength.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically a frame structure welding machine and welding method. Background Technology

[0002] During the construction and installation of frame structures, reliable welding is required at the connection nodes between columns, beams, floor slabs, and various supporting components. Welds firmly connect the independent components into a unified load-bearing system, ensuring the structure's integrity, stability, and load-bearing capacity. Existing frames typically employ manual welding. First, the four frame members are placed on clamps and welded to form the inner and outer frame members. Then, the inner and outer frame members and support members are fixed on the clamps. Finally, the support members are welded between the inner and outer frame members. This welding process requires repeated manual positioning, resulting in low welding efficiency.

[0003] Chinese patent application CN120663014A discloses a welding device for a bed frame, including longitudinal beam hoppers and transverse beam hoppers. Multiple longitudinal beam hoppers and transverse beam hoppers are provided and combined to form the shape of a bed frame. Multiple sets of support frames are provided on the outer side of the longitudinal beam hoppers. Self-positioning clamping units are slidably mounted on the support frames. Each self-positioning clamping unit includes a mounting frame, a longitudinal beam clamping unit, a transverse beam clamping unit, and a longitudinal beam centering unit. Welding robotic arms are provided on both sides of the self-positioning clamping unit. This welding device for a nursing bed frame, by setting up longitudinal beam hoppers and transverse beam hoppers, can automatically feed and pre-assemble various profiles. During the welding process, only one positioning of the frame is required. The self-positioning clamping unit can move up and down to pick up materials, and its vertical movement facilitates welding at the bottom of the frame.

[0004] However, the above-disclosed frame welding equipment generally lacks flexibility and automation. For frames of different specifications and welding angles, repeated manual positioning is required, resulting in low welding efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a frame structure welding machine to address the problems of limited freedom and automation in existing frame welding equipment, the need for repeated manual positioning between frames of different specifications and welding angles, and low welding efficiency.

[0006] To achieve the above objectives, the technical solution of the present invention is: a frame structure welding machine, comprising: Support frame; A lifting mechanism, including a lifting frame; the lifting frame is slidably disposed on the support frame; The adjustment mechanism includes two clamping assemblies; the clamping assemblies are movably mounted on the lifting frame for mounting the frame to be welded; the two clamping assemblies drive their respective frames to move closer together and abut against each other at the center. The frame structure welding machine further includes a first welding gun assembly and a second welding gun assembly; the first welding gun assembly and the second welding gun assembly are respectively slidably disposed on the upper and lower sides of the area to be welded.

[0007] As a further embodiment of the present invention: the support frame includes a support leg, and the support leg has a lifting groove; the lifting frame includes a slider, and the slider is slidably disposed in the lifting groove; The frame structure welding machine also includes a cylinder, and the lifting frame is located at the output end of the cylinder.

[0008] As a further embodiment of the present invention: the adjustment mechanism further includes a swing assembly, the swing assembly including a swing frame; the swing frame is rotatably mounted on the lifting frame; The frame structure welding machine also includes a first motor, which is connected to the swing frames on both sides for adjusting the angle between the frames to be welded on both sides.

[0009] As a further embodiment of the present invention: the first motor is disposed on the lifting frame, and the output end of the first motor is provided with a first threaded rod; The lifting mechanism further includes a lifting member and a connecting arm; the lifting member is slidably disposed on the lifting frame, the lifting member has a first threaded hole, and the first threaded rod is threadedly connected to the first threaded hole; one end of the connecting arm is rotatably connected to the swing frame, and the other end is rotatably connected to the lifting member.

[0010] As a further embodiment of the present invention: the adjustment mechanism further includes a telescopic component; the telescopic component includes a telescopic frame, which is slidably disposed on the swing frame for adjusting the distance between the two side frames; The swing assembly also includes a second motor, which is disposed on the swing frame, and the output end of the second motor is provided with a second threaded rod; the telescopic frame is provided with a second threaded hole, and the second threaded rod is threadedly connected to the second threaded hole.

[0011] As a further embodiment of the present invention: the clamping assembly includes a mounting base and a clamping plate; the mounting base is slidably disposed on the telescopic frame in a horizontal direction, and the clamping plate is slidably disposed on the mounting base for clamping the frame to be welded; The clamping assembly includes a reset assembly; the reset assembly includes two swing arms rotatably mounted on the mounting base, with both ends of the swing arms slidably connected to the clamping plates on both sides; a reset member is also connected between the two swing arms, the reset member being used to provide driving force so that the clamping plates clamp the frame.

[0012] As a further embodiment of the present invention: the mounting base has a swing cavity inside, the clamping plate includes a limiting part, the limiting part is slidably disposed in the swing cavity; the swing arm is rotatably disposed in the swing cavity; The clamping plate is provided with a meshing groove, and the two ends of the swing arm are provided with meshing parts, which are slidably disposed in the meshing groove.

[0013] As a further embodiment of the present invention: the telescopic frame includes a slide rail, the mounting base includes a sliding seat, and the sliding seat is slidably disposed on the slide rail; the mounting base is slidably disposed on the slide rail via the sliding seat; The mounting base is provided with a limiting boss on the side away from the welding area, and the limiting boss is used to abut against the frame; the clamping plate is provided with rollers for rotation towards the side of the frame; The swing frame includes a swing shaft, and the swing frame is rotatably mounted on the lifting frame via the swing shaft.

[0014] As a further embodiment of the present invention: the lifting frame includes a limiting frame, the limiting frame has a sliding groove on the outer wall of the side facing the lifting member, and the lifting member is provided with a limiting block on the side facing the limiting frame, the limiting block being slidably disposed in the sliding groove; The lifting component includes a swing seat, one end of the connecting arm is rotatably connected to the swing frame, and the other end is rotatably connected to the swing seat; the support frame includes a first suspension and a second suspension; the first suspension is disposed above the area to be welded, and the second suspension is disposed below the area to be welded; the first welding torch assembly is slidably disposed on the first suspension, and the second welding torch assembly is slidably disposed on the second suspension; The frame structure welding machine also includes a control panel for controlling the operation of the equipment; the support frame also includes a collection component located below the area to be welded for collecting welding slag.

[0015] As a further aspect of the present invention: a welding method for a frame structure welding machine, comprising: placing the frame to be welded into clamping assemblies on both sides respectively; adjusting the relative angle between the swing frames on both sides; using a lifting frame and a telescopic frame to bring the frames on both sides into contact and the area to be welded is positioned between a first welding gun assembly and a second welding gun assembly; adaptively adjusting the position of the mounting base relative to the telescopic frame to adjust the contact position to be welded.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention enhances the freedom and adaptability of frame welding through a multi-dimensional adjustable structure and automated transmission, meeting the welding positioning requirements of frames of different specifications and angles without requiring repeated manual adjustments, thus reducing labor intensity. The use of dual welding torches for simultaneous welding from top to bottom effectively improves welding efficiency and weld quality, ensuring uniform and reliable weld strength.

[0017] The clamping assembly features adaptive elastic clamping, compatible with frames of a certain size range, ensuring quick and secure clamping. Combined with rollers and limiting bosses, it protects the workpiece surface while achieving precise positioning. Each motion mechanism operates stably and with high positioning accuracy through grooved guides, threaded drives, and linkages, effectively reducing welding deviations and wobbling.

[0018] The entire machine is centrally controlled via a control panel, enabling integrated automatic operation of clamping, angle adjustment, height adjustment, butt welding, and other processes, resulting in a smooth and efficient workflow. A slag collection structure is installed at the bottom to maintain a clean working environment, improve safety, and extend equipment lifespan. This comprehensively solves the problems of low automation, cumbersome positioning, and low efficiency associated with traditional equipment. Attached Figure Description

[0019] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the support frame in this invention; Figure 3 This is a three-dimensional structural diagram of the lifting mechanism and the adjusting mechanism in this invention; Figure 4 This is a three-dimensional structural diagram of the present invention; Figure 5 This is a three-dimensional structural diagram of the lifting component in this invention; Figure 6 This is a three-dimensional structural diagram of the telescopic component in this invention; Figure 7 This is a three-dimensional structural diagram of the clamping component in this invention; Figure 8 This is a cross-sectional view of the mounting base in this invention; Figure 9 This is the internal three-dimensional structure of the clamping component in this invention. Figure 1 ; Figure 10 This is the internal three-dimensional structure of the clamping component in this invention. Figure 2 .

[0020] Explanation of reference numerals in the attached figures: 100. Support frame; 110. Support leg; 111. Lifting groove; 120. Cylinder; 130. First suspension; 131. First welding torch assembly; 140. Second suspension; 141. Second welding torch assembly; 150. Control Panel; 160. Collection Items; 200. Lifting mechanism; 210. Slider; 220. Limiting bracket; 221. Slide groove; 230. First motor; 231. First threaded rod; 240. Lifting component; 241. Limiting block; 242. First threaded hole; 243. Swing seat; 250. Connecting arm; 260. Lifting frame; 300. Adjustment mechanism; 310. Swing assembly; 311. Swing frame; 312. Swing shaft; 313. Second motor; 314. Second threaded rod; 320. Telescopic assembly; 321. Telescopic frame; 322. Second threaded hole; 323. Slide rail; 330. Clamping assembly; 331. Mounting base; 3311. Swinging cavity; 332. Sliding seat; 333. Limiting boss; 334. Reset assembly; 3341. Clamping plate; 3342. Limiting part; 3343. Engaging groove; 3344. Roller; 3345. Swing arm; 3346. Engaging part; 3347. Reset component. Detailed Implementation

[0021] The following will be combined with the appendix Figures 1 to 10 The technical solutions of the present invention have been clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] This invention provides, through improvements, a frame structure welding machine, such as... Figures 1-10 As shown, including; Support frame 100; The lifting mechanism 200 includes a lifting frame 260; the lifting frame 260 is slidably mounted on the support frame 100; The adjustment mechanism 300 includes two clamping assemblies 330; the clamping assemblies 330 are movably mounted on the lifting frame 260 for mounting the frame to be welded; the two clamping assemblies 330 drive their respective frames to move closer together and abut against each other in the center. The frame structure welding machine also includes a first welding gun assembly 131 and a second welding gun assembly 141; the first welding gun assembly 131 and the second welding gun assembly 141 are respectively slidably disposed on the upper and lower sides of the area to be welded.

[0026] As the basic support component of the entire frame structure welding machine, the support frame 100 is responsible for the installation and load-bearing of all functional components of the machine. It provides a stable installation reference surface and support point for all components such as the lifting mechanism 200, the adjustment mechanism 300, the first welding torch assembly 131, and the second welding torch assembly 141, laying the foundation for the accuracy of subsequent welding operations.

[0027] The lifting frame 260 and the support frame 100 are connected by a sliding engagement. The principle is that a drive structure causes the lifting frame 260 to slide up and down along a preset trajectory on the support frame 100, thereby driving the adjustment mechanism 300 mounted on the lifting frame 260 and the frame to be welded clamped on the adjustment mechanism 300, thus achieving overall height adjustment. This sliding arrangement allows for adjustment of the welding height, enabling precise adjustment of the part to be welded to the most suitable welding height position, specifically between the first welding torch assembly 131 and the second welding torch assembly 141, according to the specifications of the frame to be welded and the welding process requirements.

[0028] The function of the adjusting mechanism 300 is to clamp, align, and fix the frame to be welded. Two clamping components 330 are movably mounted on the lifting frame 260 and can move relative to each other in a preset direction. The clamping structure of each component 330 firmly clamps the frame to be welded, preventing displacement during welding. Simultaneously, the opposing movement of the two clamping components 330 drives the frames they hold closer to the center of the equipment until the ends of the two frames precisely abut against each other, completing the automatic alignment of the welded parts and ensuring that the gap and precision of the two frames meet the welding process requirements.

[0029] The two welding torch assemblies are symmetrically arranged, sliding on the upper and lower sides of the area to be welded. Both assemblies can be adjusted along the trajectory of the weld seam, allowing for flexible adjustment of the torch position and angle according to the length and direction of the weld, ensuring precise alignment of the torch with the area to be welded. Simultaneously, the two welding torch assemblies can start and operate synchronously, welding the upper and lower surfaces of the weld seam respectively, achieving simultaneous welding of both sides without the need for manual frame rotation to complete the entire weld seam.

[0030] See appendix Figure 1 -Appendix Figure 2 The support frame 100 includes a support leg 110, and a lifting groove 111 is provided on the support leg 110; the lifting frame 260 includes a slider 210, which is slidably disposed in the lifting groove 111. The frame structure welding machine also includes a cylinder 120, and a lifting frame 260 is located at the output end of the cylinder 120.

[0031] In this embodiment: the support leg 110 serves as the load-bearing part of the support frame 100, and a vertical guide rail is formed by the lifting groove 111 opened on it. The slider 210 of the lifting frame 260 forms a sliding engagement with the lifting groove 111, so that the lifting frame 260 can only move in the vertical direction along the lifting groove 111, restricting its horizontal offset and rotation.

[0032] In this embodiment: the cylinder 120 is fixed on the support frame 100, and its output end directly drives the lifting frame 260. Through the extension and retraction of the cylinder 120, the slider 210 is driven to slide up and down in the lifting groove 111, so as to realize the overall lifting and positioning of the lifting frame 260, the upper adjustment mechanism 300, the clamping component 330 and the frame to be welded.

[0033] In this embodiment, the sliding engagement between the lifting groove 110 and the slider 210 ensures that the lifting frame 260 is raised and lowered smoothly without jamming or lateral swaying, thus improving welding positioning accuracy. The cylinder 120 has a fast drive response and stable stroke, which can quickly adjust the part to be welded to a suitable welding height to meet the height requirements of different frame specifications.

[0034] See appendix Figure 1 -Appendix Figure 4 The adjustment mechanism 300 also includes a swing assembly 310, which includes a swing frame 311; the swing frame 311 is rotatably mounted on the lifting frame 260. The frame structure welding machine also includes a first motor 230, which is connected to the swing frames 311 on both sides for adjusting the angle between the two frames to be welded.

[0035] In this embodiment: the swing frame 311 is rotatably mounted on the lifting frame 260, forming a rotatable angle-adjustable base. The first motor 230 is fixed to the lifting frame 260 and forms a transmission cooperation with the swing frames 311 on both sides. When working, the first motor 230 outputs torque to drive the swing frames 311 on both sides to rotate synchronously around their rotation axis, thereby driving the clamping assembly 330 and the frame to be welded mounted on the swing frame 311 to swing synchronously, realizing the continuous adjustment of the included angle between the two frames to be welded, and meeting the positioning requirements for butt welding of frames at different angles.

[0036] In this embodiment, the automatic and precise adjustment of the frame welding angle is achieved through the transmission cooperation between the first motor 230 and the swing frame 311, eliminating the need for manual adjustment and repeated alignment, thus improving the angle positioning accuracy. The rotating structure of the swing frame 311 allows for a wider angle adjustment range and higher equipment freedom, making it suitable for welding frames with various included angle specifications.

[0037] See appendix Figure 3 -Appendix Figure 5 The first motor 230 is mounted on the lifting frame 260, and the output end of the first motor 230 is provided with a first threaded rod 231; The lifting mechanism 200 also includes a lifting member 240 and a connecting arm 250; the lifting member 240 is slidably disposed on the lifting frame 260, the lifting member 240 has a first threaded hole 242, and the first threaded rod 231 is threadedly connected to the first threaded hole 242; one end of the connecting arm 250 is rotatably connected to the swing frame 311, and the other end is rotatably connected to the lifting member 240.

[0038] In this embodiment: the first motor 230 is mounted on the lifting frame 260. During operation, it drives the first threaded rod 231 to rotate. The first threaded rod 231 forms a threaded transmission engagement with the first threaded hole 242 of the lifting member 240, converting the rotational motion of the first motor 230 into the linear sliding motion of the lifting member 240 along the lifting frame 260. During the movement, the lifting member 240 pushes and pulls the connecting arm 250, which transmits linear pushing or pulling force to the swing frame 311, driving the swing frame 311 to rotate around its hinge point, thereby achieving precise adjustment of the welding angle between the two frames to be welded.

[0039] In this embodiment, a threaded transmission structure with a first threaded rod 231 and a first threaded hole 242 is adopted, which provides smooth transmission, strong self-locking, and can achieve fine-tuning of angle and precise positioning, preventing the swing frame 311 from springing back and shifting during the welding process.

[0040] In this embodiment, the linkage transmission structure between the lifting member 240 and the connecting arm 250 can stably drive the swing frame 311 to deflect, adapting to the welding requirements of frames with different angles.

[0041] See appendix Figure 4 and attached Figure 6 The adjustment mechanism 300 also includes a telescopic component 320; the telescopic component 320 includes a telescopic frame 321, which is slidably disposed on the swing frame 311 for adjusting the distance between the two side frames; The swing assembly 310 also includes a second motor 313, which is disposed on the swing frame 311. The output end of the second motor 313 is provided with a second threaded rod 314. The telescopic frame 321 is provided with a second threaded hole 322, and the second threaded rod 314 is threadedly connected to the second threaded hole 322.

[0042] In this embodiment: the second motor 313 is fixedly mounted on the swing frame 311, and when working, it outputs torque to drive the second threaded rod 314 to rotate synchronously. The second threaded rod 314 forms a threaded transmission engagement with the second threaded hole 322 on the telescopic frame 321, converting the rotational motion of the second motor 313 into the linear translational motion of the telescopic frame 321.

[0043] In this embodiment: the telescopic frame 321 slides along the swing frame 311, and through its own telescopic movement, it drives the front clamping component 330 and the frame to be welded to move closer or further away, thereby achieving precise adjustment of the butt joint distance between the two frames to be welded and ensuring that the ends of the frames are tightly fitted and aligned.

[0044] In this embodiment, a threaded drive is adopted, which has high transmission accuracy, smooth movement and mechanical self-locking. It can realize minute and precise adjustment of the frame docking distance, avoid excessive docking gap or misalignment, and improve welding positioning accuracy.

[0045] The telescopic frame 321 is slidably mounted on the swing frame 311, which increases the horizontal telescopic freedom on the basis of angle adjustment, allowing the equipment to adapt to frames of different lengths and docking sizes, making it more versatile.

[0046] See appendix Figure 7 -Appendix Figure 10 The clamping assembly 330 includes a mounting base 331 and a clamping plate 3341; the mounting base 331 is slidably disposed on the telescopic frame 321 in the horizontal direction, and the clamping plate 3341 is slidably disposed on the mounting base 331 for clamping the frame to be welded; The clamping assembly 330 includes a reset assembly 334; the reset assembly 334 includes two swing arms 3345 rotatably disposed on the mounting base 331, the two ends of the swing arms 3345 being slidably connected to the clamping plates 3341 on both sides respectively; a reset member 3347 is also connected between the two swing arms 3345, the reset member 3347 being used to provide driving force so that the clamping plates 3341 can clamp the frame.

[0047] In this embodiment: the mounting base 331 is slidably disposed on the telescopic frame 321 in the horizontal direction, and can slide laterally on the telescopic frame 321 to facilitate adjustment of the mating parts of the frame to be welded. The clamping plate 3341 is slidably disposed on the mounting base 331, and can slide linearly in opposite directions on the mounting base 331, constituting the actuating component for clamping the frame.

[0048] In this embodiment, the two swing arms 3345 of the reset assembly 334 are rotatably mounted inside the mounting base 331 to form a symmetrical lever linkage structure. The two ends of the swing arms 3345 are slidably engaged with the clamping plates 3341 on both sides, so that the rotation of the swing arms 3345 is converted into the linear sliding of the clamping plates 3341.

[0049] In this embodiment: the reset member 3347 is connected between the two swing arms 3345, continuously applying an elastic contraction force to drive the two swing arms 3345 to swing inward around their respective rotation centers. Then, through the sliding engagement between the ends of the swing arms 3345 and the clamping plates 3341, the clamping plates 3341 on both sides are simultaneously pulled towards the center of the mounting base 331, thereby automatically clamping the frame to be welded and achieving adaptive clamping and fixing. When the frame is placed in, the outer wall of the frame expands the clamping plates 3341, and the clamping plates 3341 drive the swing arms 3345 to open outward against the elastic force of the reset member 3347. After placement, the clamping is automatically completed by the rebound force of the reset member 3347.

[0050] See appendix Figure 7 -Appendix Figure 10 The mounting base 331 has a swing cavity 3311 inside, the clamping plate 3341 includes a limiting part 3342, the limiting part 3342 is slidably disposed in the swing cavity 3311; the swing arm 3345 is rotatably disposed in the swing cavity 3311. The clamping plate 3341 is provided with a meshing groove 3343, and the two ends of the swing arm 3345 are provided with meshing parts 3346, which are slidably disposed in the meshing groove 3343.

[0051] In this embodiment: the mounting base 331 has a swing cavity 3311 inside, which provides a closed and directional motion space for the rotation of the swing arm 3345 and the sliding of the limiting part 3342 of the clamping plate 3341, while constraining the motion trajectory of each component and preventing radial movement.

[0052] In this embodiment, the limiting part 3342 of the clamping plate 3341 forms a sliding fit with the swing cavity 3311, allowing the clamping plate 3341 to move linearly along the set clamping direction, thus achieving motion guidance and limiting. The swing arm 3345 is integrally arranged in the swing cavity 3311 and can rotate around the fulcrum. The engaging parts 3346 at both ends of the swing arm 3345 are embedded in the engaging grooves 3343 of the clamping plate 3341 to form a sliding fit. When the swing arm 3345 rotates, the engaging parts 3346 slide relative to each other in the engaging grooves 3343, smoothly converting the rotational motion of the swing arm 3345 into the linear clamping motion of the clamping plate 3341, ensuring that the clamping plates 3341 on both sides open and close synchronously, and realizing reliable transmission of force and motion.

[0053] In this embodiment, the swing cavity 3311 cooperates with the limiting part 3342 to limit the movement direction of the clamping plate 3341, preventing the clamping plate 3341 from tilting during clamping and welding, thus improving clamping stability and positioning accuracy. The sliding fit structure between the meshing part 3346 and the meshing groove 3343 ensures no jamming in the transmission clearance, allowing the rotation of the swing arm 3345 to be converted into the linear movement of the clamping plate 3341, ensuring synchronous movement of the clamping plates 3341 on both sides. All moving parts are integrated inside the swing cavity 3311, maximizing space utilization and reducing the intrusion of external dust and welding slag into the moving parts, thereby reducing wear and the probability of failure.

[0054] See appendix Figure 6 -Appendix Figure 7 and attached Figure 9 -Appendix Figure 10 The telescopic frame 321 includes a slide rail 323, and the mounting base 331 includes a sliding seat 332, which is slidably disposed on the slide rail 323; the mounting base 331 is slidably disposed on the slide rail 323 via the sliding seat 332. Mounting base 331 is provided with a limiting boss 333 on the side away from the welding area, the limiting boss 333 is used to abut against the frame; the clamping plate 3341 is provided with a roller 3344 for rotation towards the side of the frame. The swing frame 311 includes a swing shaft 312, and the swing frame 311 is rotatably mounted on the lifting frame 260 via the swing shaft 312.

[0055] In this embodiment, the slide rail 323 on the telescopic frame 321 and the sliding seat 332 of the mounting base 331 form a linear sliding pair, allowing the mounting base 331 to make fine lateral displacement along the slide rail 323, thereby achieving fine adjustment of the clamping position. The limiting boss 333 on the mounting base 331 is located on the side away from the welding area, and it abuts and limits the end of the frame to be welded, limiting the position of the frame in the length direction and ensuring that the butt joint ends are uniformly aligned with the weld center.

[0056] In this embodiment, the rollers 3344 on the clamping plate 3341 roll in contact with the outer wall of the frame, changing sliding friction to rolling friction, which facilitates the smooth insertion of the frame into the clamping area and reduces surface scratches. The swing frame 311 forms a rotating pair with the lifting frame 260 through the swing shaft 312, and achieves angular deflection with the swing shaft 312 as the rotation center, providing a stable rotational basis for adjusting the frame angle.

[0057] In this embodiment, roller 3344 significantly reduces frictional resistance during frame clamping, making feeding smoother, while protecting the frame surface from scratches by clamping plate 3341 and improving the appearance quality of the finished product.

[0058] See appendix Figure 1 -Appendix Figure 10 The lifting frame 260 includes a limiting frame 220. The outer wall of the limiting frame 220 facing the lifting member 240 has a sliding groove 221. The lifting member 240 is provided with a limiting block 241 facing the limiting frame 220. The limiting block 241 is slidably disposed in the sliding groove 221. The lifting component 240 includes a swing seat 243, and a connecting arm 250 is rotatably connected at one end to a swing frame 311 and at the other end to a swing seat 243; the support frame 100 includes a first suspension 130 and a second suspension 140; the first suspension 130 is disposed above the area to be welded, and the second suspension 140 is disposed below the area to be welded; the first welding torch assembly 131 is slidably disposed on the first suspension 130, and the second welding torch assembly is slidably disposed on the second suspension 140; The frame structure welding machine also includes a control panel 150, which is used to control the operation of the equipment; the support frame 100 also includes a collection component 160, which is located below the area to be welded and is used to collect welding slag.

[0059] In this embodiment: the sliding groove 221 on the limiting frame 220 and the limiting block 241 of the lifting member 240 form a linear sliding guide fit, which strictly limits the lifting member 240 to only make directional linear movement along the sliding groove 221, prevents the lifting member 240 from deflecting during the transmission process, and ensures that the thread transmission between the first threaded rod 231 and the first threaded hole 242 is stable and reliable.

[0060] In this embodiment: the swing seat 243 on the lifting member 240 provides a hinge fulcrum for the connecting arm 250. The two ends of the connecting arm 250 form a rotating pair with the swing seat 243 and the swing frame 311 respectively. When the lifting member 240 moves up and down, the linear motion is converted into the rotation of the swing frame 311 around the swing axis 312 through the pushing and pulling action of the connecting arm 250, thereby realizing the adjustment of the welding angle.

[0061] In this embodiment, the first suspension 130 and the second suspension 140 on the support frame 100 are respectively arranged on the upper and lower sides of the part to be welded, providing a mounting carrier and sliding track for the first welding torch assembly 131 and the second welding torch assembly 141, so that the two sets of welding torches can move along the weld seam direction to achieve continuous welding operation. The first welding torch assembly 131 and the second welding torch assembly 141 each have a built-in independent power source. When the power source is running, it outputs driving force, which drives the first welding torch assembly 131 to slide along the first suspension 130 and the second welding torch assembly 141 to slide along the second suspension 140, so that the two welding torch assemblies can move autonomously along the weld seam length direction. At the same time, the power source can adjust the output speed and displacement stroke to control the moving speed, dwell position and welding stroke of the welding torch, so as to achieve linkage matching with the positioning rhythm of the frame.

[0062] In this embodiment, the control panel 150 serves as the overall control unit, integrating the start / stop, stroke, speed, and linkage logic control of components such as the cylinder 120, the first motor 230, the second motor 313, the first welding torch assembly 131, and the second welding torch assembly 140, thereby achieving automated welding operations. The collection component 160 is positioned below the area to be welded, using gravity to catch welding slag and spatter that fall during the welding process, preventing welding slag from scattering and contaminating the equipment or work area.

[0063] See appendix Figure 1 -Appendix Figure 10 A welding method for a frame structure welding machine includes: placing the frame to be welded into clamping assemblies 330 on both sides respectively; adjusting the relative angle between the swing frames 311 on both sides; using a lifting frame 260 and a telescopic frame 321 to bring the frames on both sides into contact and the welding point is set between a first welding gun assembly 131 and a second welding gun assembly 141; adaptively adjusting the position of the mounting base 331 relative to the telescopic frame 321 to adjust the welding contact position.

[0064] In this embodiment: First, the frame to be welded is automatically clamped and positioned by the clamping assemblies 330 on both sides. Then, the swing frame 311 is driven to rotate, adjusting the angle between the two frames to accommodate the welding requirements of frames with different angles. Subsequently, the lifting frame 260 adjusts the overall height, and the telescopic frame 321 moves the frame horizontally, causing the ends of the two frames to abut against each other, and precisely placing the butt weld between the first welding gun assembly 131 and the second welding gun assembly 141, preparing for simultaneous double-sided welding. Finally, the sliding structure of the mounting base 331 on the telescopic frame 321 is used for adaptive fine-tuning to further correct the weld butt position, which is suitable for frames with differences in length.

[0065] After welding, the reset component 3347 remains in an elastically tightened state and is clamped by the swing arm 3345 and the clamping plate 3341. At this time, the operator pulls the frame outward against the elastic force of the reset component 3347. The outer wall of the frame presses against the roller 3344 and drives the clamping plate 3341 to open to both sides. The swing arm 3345 rotates accordingly, releasing the clamping constraint on the frame. At the same time, the mounting base 331 can slide within a small range on the slide rail 323. With the rolling action of the roller 3344, and in conjunction with the telescopic frame 321 and the lifting frame 260, the frame can be smoothly pulled out along the clamping direction, completing the removal of the workpiece.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A frame structure welding machine, characterized in that, include: Support frame; A lifting mechanism, including a lifting frame; the lifting frame is slidably disposed on the support frame; The adjustment mechanism includes two clamping assemblies; the clamping assemblies are movably mounted on the lifting frame for mounting the frame to be welded; the two clamping assemblies drive their respective frames to move closer together and abut against each other at the center; the adjustment mechanism also includes a swing assembly, the swing assembly including a swing frame; the swing frame is rotatably mounted on the lifting frame. The frame structure welding machine also includes a first motor, which is connected to the swing frames on both sides for adjusting the angle between the frames to be welded on both sides; the first motor is mounted on the lifting frame, and the output end of the first motor is provided with a first threaded rod; the lifting mechanism also includes a lifting member and a connecting arm; the lifting member is slidably mounted on the lifting frame, and the lifting member has a first threaded hole, with the first threaded rod threadedly connected to the first threaded hole; one end of the connecting arm is rotatably connected to the swing frame, and the other end is rotatably connected to the lifting member; The frame structure welding machine further includes a first welding torch assembly and a second welding torch assembly; the first welding torch assembly and the second welding torch assembly are slidably disposed on the upper and lower sides of the area to be welded, respectively; the adjustment mechanism further includes a telescopic assembly; the telescopic assembly includes a telescopic frame, which is slidably disposed on the swing frame for adjusting the distance between the two side frames; the swing assembly further includes a second motor, which is disposed on the swing frame, and the output end of the second motor is provided with a second threaded rod; the telescopic frame has a second threaded hole, and the second threaded rod is threadedly connected to the second threaded hole; the clamp... The holding assembly includes a mounting base and a clamping plate; the mounting base is slidably disposed on the telescopic frame in a horizontal direction, and the clamping plate is slidably disposed on the mounting base for clamping the frame to be welded; the clamping assembly includes a reset assembly; the reset assembly includes two swing arms rotatably disposed on the mounting base, and the two ends of the swing arms are slidably connected to the clamping plates on both sides respectively; a reset member is also connected between the two swing arms, and the reset member is used to provide driving force so that the clamping plate clamps the frame; the mounting base has a swing cavity inside, and the clamping plate includes a limiting part, which is slidably disposed in the swing cavity; The swing arm is rotatably mounted in the swing cavity; The clamping plate has a meshing groove, and the two ends of the swing arm are provided with meshing parts, which are slidably disposed in the meshing groove; the telescopic frame includes a slide rail, and the mounting base includes a sliding seat, which is slidably disposed on the slide rail; the mounting base is slidably disposed on the slide rail via the sliding seat; a limiting boss is provided on the side of the mounting base away from the welding area, which is used to abut against the frame; the clamping plate is provided with a roller for rotation towards the side of the frame.

2. The frame structure welding machine according to claim 1, characterized in that, The support frame includes support legs, and the support legs have lifting grooves; the lifting frame includes a slider, and the slider is slidably disposed in the lifting grooves; The frame structure welding machine also includes a cylinder, and the lifting frame is located at the output end of the cylinder.

3. The frame structure welding machine according to claim 1, characterized in that, The lifting frame includes a limiting frame, the limiting frame having a groove on its outer wall facing the lifting member, and the lifting member having a limiting block on its side facing the limiting frame, the limiting block being slidably disposed in the groove.

4. A frame structure welding machine according to claim 1, characterized in that, The lifting component includes a swing seat, one end of the connecting arm is rotatably connected to the swing frame, and the other end is rotatably connected to the swing seat.

5. A frame structure welding machine according to claim 1, characterized in that, The support frame includes a first suspension and a second suspension; the first suspension is disposed above the area to be welded, and the second suspension is disposed below the area to be welded; the first welding gun assembly is slidably disposed on the first suspension, and the second welding gun assembly is slidably disposed on the second suspension; And / or, the frame structure welding machine further includes a control panel for controlling the operation of the equipment; And / or, the support frame further includes a collection element disposed below the area to be welded for collecting welding slag.

6. A welding method using the frame structure welding machine according to any one of claims 1-5, characterized in that: S100. Place the frame to be welded into the clamping assemblies on both sides respectively; S200. Adjust the relative angle between the two swing frames; S300. The frames on both sides are brought together by the lifting frame and the telescopic frame, and the area to be welded is located between the first welding gun assembly and the second welding gun assembly; S400. Adaptive adjustment of the mounting base relative to the telescopic frame to adjust the welding contact position.

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