A steel pipe high-frequency welding and automatic packing integrated device for fitness equipment

Abstract

The application is suitable for the technical field of body-building equipment production, and provides a steel pipe high-frequency welding and automatic packing integrated device for body-building equipment, which comprises an integrated frame, wherein a high-frequency welding station unit, a station conversion unit and a packing station unit are respectively arranged on the integrated frame; the multifunctional structure of radial translation, circumferential rotation and posture overturning arranged in the station conversion unit can match the horizontal clamping working condition of the welding station and the stacking and unstacking working condition of the packing station, realize seamless docking of the welding and packing processes, reduce the clamping times, greatly improve the machining precision and product appearance quality; the lifting fork bucket in the packing station unit cooperates with the steel pipe blocking frame to form a storage space, which automatically completes the limiting alignment and regular sorting of the steel pipes during the stacking process, the bidirectional packing mechanism performs omnibearing surrounding packing, constant tension tightening, packing belt joint pressing and sealing and automatic cutting of the excess belt material on the steel pipe bundle, and completes bidirectional constant force packing on both ends of the steel pipe bundle.

Description

Technical Field

[0001] This invention belongs to the field of fitness equipment manufacturing technology, and in particular relates to an integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment. Background Technology

[0002] Fitness equipment extensively uses metal steel pipes as basic components. The ends of these pipes generally require high-frequency butt welding. After welding, the pipes need to be bundled and packaged for easy storage and transportation. Currently, the mainstream processing model in the industry involves independently arranging high-frequency welding equipment and packaging equipment. After welding, the pipes are transported to the packaging station by a conveyor or manually, resulting in the two processes being isolated from each other.

[0003] Currently, the high-frequency welding and automatic packaging of steel pipes in fitness equipment are generally handled by two separate devices. For example, existing automatic packaging machines consist of a processing table, a packaging host, a steel pipe support groove, a lateral gathering mechanism, and a tape feeding and cutting mechanism. The welded pipes are manually or transported to the support groove on the processing table. The lateral gathering mechanism then gathers multiple steel pipes laterally and neatly. The packaging host then guides the packaging tape around the bundle of steel pipes, sequentially completing the tightening, joint sealing, and tape cutting to achieve the steel pipe bundling operation. However, this separate welding and packaging process has certain technical drawbacks in practical applications: Firstly, the separation of the welding station and the packaging station means that the steel pipes need to be transferred and transported after welding, and they need to be clamped and positioned multiple times. Repeated clamping can easily cause the steel pipes to deviate in positioning or be bumped and scratched on the outer wall of the pipes. At the same time, it is necessary to add auxiliary transfer and transport equipment, which occupies a lot of workshop space, has poor process continuity, requires more manual intervention, and makes it difficult to continuously and stably control the welding accuracy and the appearance quality of the steel pipes. Secondly, existing baling machines lack an integrated limiting and regulating structure during the steel pipe unloading and stacking stage. After the steel pipes fall freely into the baling area, they are arranged haphazardly and the ends are of uneven lengths. As a result, the final bundles of steel pipes are loose and crooked, which easily leads to loose or scattered bundles and poor baling regularity. Moreover, most traditional baling machines can only achieve unidirectional baling, resulting in poor baling firmness of the steel pipe bundles.

[0004] Therefore, in view of the above situation, there is an urgent need to develop an integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment, so as to overcome the shortcomings in current practical applications. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment, thereby solving the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment includes an integrated frame, on which a high-frequency welding station unit, a station conversion unit and a packaging station unit are respectively provided, and the station conversion unit is located between the high-frequency welding station unit and the packaging station unit. The workstation conversion unit consists of a conversion motor, a conversion spindle, a conversion worktable, a radial translation mechanism, and a clamping and flipping mechanism. The conversion motor is fixed in the middle of the integrated frame and is driven by the conversion spindle rotatably mounted on the integrated frame. The top of the conversion spindle is rigidly connected to the conversion worktable. The conversion worktable is radially provided along the conversion spindle for driving the two clamping and flipping mechanisms to move synchronously towards and away from each other. The two clamping and flipping mechanisms rotate with the conversion worktable and, in conjunction with the telescopic translation of the radial translation mechanism, form intermittent docking operations with the high-frequency welding workstation unit and the packaging workstation unit, respectively. The clamping and flipping mechanism integrates the functions of steel pipe clamping and fixing and posture flipping adjustment. The high-frequency welding workstation unit is fixedly installed on one side of the integrated frame and performs high-frequency butt welding on the ends of the fitness equipment steel pipes delivered to the position by the clamping and flipping mechanism. The packaging station unit consists of a packaging frame, a steel pipe baffle, forks, and a bidirectional packaging mechanism. The packaging frame is located on one side of the transposition spindle and is fixed on an integrated frame. Two sets of vertically lifting forks are symmetrically mounted on the packaging frame. A steel pipe baffle is vertically fixed on the side of the packaging frame near the transposition spindle. The two sets of forks, the inner end face of the packaging frame, and the steel pipe baffle cooperate with each other to form a packaging and storage space for accommodating multiple fitness equipment steel pipes. The bidirectional packaging mechanism is slidably mounted on the packaging frame along its length. The direction of movement of the bidirectional packaging mechanism on the packaging frame is parallel to the axial direction of the clamping and flipping mechanism that holds the equipment steel pipes. The bidirectional packaging mechanism is used to automatically complete the entire packaging operation of constant tension tightening, joint sealing, and cutting of excess packing tape for the neatly stacked steel pipe bundles inside the storage space.

[0007] As a further technical solution of the present invention, the radial translation mechanism includes a radial motor, a radial gear, two radial racks, two radial guide rail seats, and two radial linear guide rails. The radial motor is vertically mounted on the transposition worktable. A radial gear is coaxially fixed on the output end of the radial motor. Two radial racks are symmetrically meshed on the left and right sides of the radial gear. The two radial racks are radially slidably mounted on the transposition worktable along the transposition main shaft. The ends of the two radial racks are respectively fixedly connected to two radial guide rail seats symmetrically arranged on both sides of the transposition worktable. Each of the two radial guide rail seats is fixed with a clamping and flipping mechanism, and the two radial guide rail seats are radially slidably mounted on the transposition worktable through two radial linear guide rails.

[0008] As a further technical solution of the present invention, the clamping and flipping mechanism includes an adjusting component, two adjusting sliders and a flipping component. The adjusting component is perpendicular to the laying direction of the radial linear guide and is fixed on the radial guide seat. Two adjusting sliders are symmetrically slidably mounted at both ends of the adjusting component. Each of the two adjusting sliders is equipped with a hinge seat that is rotatably connected to the flipping component. A self-centering clamp is fixed at the flipping end of the flipping component.

[0009] As a further technical solution of the present invention, the pitch adjustment assembly includes a pitch adjustment track and a pitch adjustment screw. The pitch adjustment track is perpendicular to the laying direction of the radial linear guide rail and is fixed on the radial guide rail seat. The pitch adjustment screw is parallel to the length direction of the pitch adjustment track. The pitch adjustment slider is slidably installed in the pitch adjustment track. The pitch adjustment screw is threadedly connected to two pitch adjustment sliders.

[0010] As a further technical solution of the present invention, the flipping assembly includes a flipping motor, a main flipping rod, a secondary flipping rod, a clamping platform, a connecting block, and a hinge shaft. The flipping motor is fixedly mounted on the adjustable slider. The main flipping rod is coaxially fixed to the output end of the flipping motor. The free end of the main flipping rod is rotatably hinged to the bottom of the clamping platform through the secondary flipping rod. A self-centering clamp is fixed to the top of the clamping platform. A connecting block is fixed to the bottom of the clamping platform near the hinge seat. The connecting block is rotatably hinged to the hinge seat through the hinge shaft.

[0011] As a further technical solution of the present invention, a limiting boss is vertically provided at one end of the adjustable slider away from the hinge seat. The limiting boss is set directly opposite the flipping and swinging path of the clamping table and mechanically limits the downward flipping limit position of the clamping table.

[0012] As a further technical solution of the present invention, the bidirectional packaging mechanism includes a bidirectional translation component, a T-shaped packaging platform, a circumferential rotation component, a packaging motor, and a wrapping packaging component. The bidirectional translation component is installed on the packaging frame along the length direction of the packaging frame. A T-shaped packaging platform is vertically fixed on the power output end of the bidirectional translation component. A circular clearance opening is provided in the middle of the T-shaped packaging platform. The left and right sides of the T-shaped packaging platform are the packaging side and the driving side, respectively. Auxiliary pulleys and circumferential rotation components are equidistantly distributed circumferentially along the axis of the clearance opening on the packaging side of the T-shaped packaging platform. One end of the circumferential rotation component extends to the driving side of the T-shaped packaging platform and is connected to the packaging motor for transmission. The wrapping packaging component is coaxially arranged on the packaging side of the T-shaped packaging platform and is rotatably connected to the circumferential rotation component.

[0013] As a further technical solution of the present invention, the bidirectional translation component includes a bidirectional motor, a transmission belt, a dual-rotation screw, a screw assembly, a bidirectional guide rail seat, and a bidirectional linear guide rail. The bidirectional linear guide rail is fixed on the packing frame along the length direction of the packing frame and located below the fork bucket. The two ends of the bidirectional linear guide rail are symmetrically and slidably fitted with bidirectional guide rail seats. A screw assembly that is threadedly engaged with the dual-rotation screw is fixed on one side of the bidirectional guide rail seat. A T-shaped packing table is fixed on the bidirectional guide rail seat. The dual-rotation screw is parallel to the bidirectional linear guide rail and rotatably mounted on the packing frame. The middle part of the dual-rotation screw is connected to the power output end of the bidirectional motor fixed on the packing frame via a transmission belt.

[0014] As a further technical solution of the present invention, the circumferential rotating assembly includes an H-shaped rotating wheel, a rotating shaft, a synchronous wheel, and a synchronous belt. The H-shaped rotating wheels are equidistantly distributed circumferentially on the packaging side of the T-shaped packaging platform along the axis of the clearance opening, and are rotatably mounted on the T-shaped packaging platform via the rotating shaft. The multiple H-shaped rotating wheels are tensioned and assembled together to support the winding packaging assembly. One end of the rotating shaft extends to the drive side of the T-shaped packaging platform and is coaxially fixed to the synchronous wheel. The multiple synchronous wheels are connected by synchronous belt transmission to form a closed synchronous transmission cooperation. One of the synchronous wheels is connected to the power output end of the packaging motor via a coupling.

[0015] As a further technical solution of the present invention, the wrapping and packaging assembly includes an annular rotating block, a reel, packing tape, and a locking clamp. The annular rotating block is coaxially arranged on the packaging side of the T-shaped packaging table. The edge end face of the annular rotating block is rotatably connected to multiple H-shaped rotating wheels and auxiliary pulleys. A reel is installed on one end face of the annular rotating block. The packing tape is wound and stored inside the reel. The starting wrapping end of the packing tape is fixedly engaged inside the locking clamp. The locking clamp is fixed on the T-shaped packaging table.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The workstation conversion unit features a multi-functional structure with radial translation, circumferential rotation, and posture flipping capabilities. This structure can be matched with the horizontal clamping conditions of the welding workstation and the material stacking and unloading conditions of the packaging workstation. This simplifies the overall structure, reduces the overall manufacturing cost, and enables seamless connection between welding and packaging processes. The steel pipe can complete two core processes with a single clamping and transfer, reducing the number of clamping operations and significantly improving processing accuracy and product appearance quality. The lifting fork bucket in the packaging station unit, together with the fixed steel pipe baffle, forms a storage space. During the stacking process, it automatically completes the limiting alignment and orderly sorting of steel pipes, eliminating the need for manual sorting and significantly improving the regularity and strength of the steel pipe bundle packaging. The sliding operation direction of the bidirectional packaging mechanism is parallel to the steel pipe clamping axis, perfectly adapting to the steel pipe bundle layout structure. It performs all-round wrapping, constant tension tightening, packing tape joint pressing and sealing, and automatic cutting of excess tape on the orderly steel pipe bundle, thereby completing the bidirectional constant force packaging of both ends of the steel pipe bundle.

[0017] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a partial structural schematic diagram of an integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment provided in an embodiment of the present invention.

[0019] Figure 2 This is a partial structural side view of the integrated high-frequency welding and automatic packaging device for steel pipes used in fitness equipment provided in an embodiment of the present invention.

[0020] Figure 3 for Figure 2 Enlarged view of the structure of the intermediate workstation conversion unit.

[0021] Figure 4 for Figure 3 Top view of the structure of the intermediate workstation conversion unit.

[0022] Figure 5 for Figure 3 A schematic diagram of the clamping and flipping mechanism.

[0023] Figure 6 for Figure 5 Enlarged view of the structure of the inverting component.

[0024] Figure 7 for Figure 2 A schematic diagram of the structure of the packaging station unit.

[0025] Figure 8 for Figure 7 A top-view front view of the packaging workstation unit structure.

[0026] Figure 9 for Figure 7 A schematic diagram of the bidirectional packaging mechanism.

[0027] Figure 10 for Figure 9 Front view of the packaging side of the T-shaped packing station.

[0028] Figure 11 for Figure 9 Front view of the drive side of the T-shaped packing station.

[0029] Reference numerals: 100-Transfer spindle, 110-Transfer worktable, 200-Radial translation mechanism, 210-Radial motor, 220-Radial gear, 230-Radial rack, 240-Radial guide rail seat, 250-Radial linear guide rail, 300-Clamping and flipping mechanism, 310-Adjusting distance assembly, 311-Adjusting distance rail, 312-Adjusting distance screw, 320-Adjusting distance slider, 321-Hinge seat, 322-Limiting boss, 330-Flipping assembly, 331-Flipping motor, 332-Main flipping rod, 333-Secondary flipping rod, 334-Clamping table, 335-Connecting block, 336-Hinge shaft, 400-Packing frame, 41 0-Steel pipe baffle, 500-Fork bucket, 600-Bidirectional packing mechanism, 610-Bidirectional translation component, 611-Bidirectional motor, 612-Drive belt, 613-Double rotary screw, 614-Screw connection kit, 615-Bidirectional guide rail seat, 616-Bidirectional linear guide rail, 620-T-type packing table, 621-Clearing opening, 622-Auxiliary pulley, 630-Circumferential rotation component, 631-H-type rotating wheel, 632-Rotating shaft, 633-Synchronous pulley, 634-Synchronous belt, 640-Packing motor, 650-Wrapping and packing component, 651-Annular rotating block, 652-Reel, 653-Packing strap, 654-Locking clamp. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0032] like Figures 1 to 11 As shown, an integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment, provided as an embodiment of the present invention, includes an integrated frame. The integrated frame is respectively provided with a high-frequency welding station unit, a station conversion unit and a packaging station unit. The station conversion unit is located between the high-frequency welding station unit and the packaging station unit to realize the orderly transfer and connection of steel pipes between the high-frequency welding station and the packaging station. The workstation conversion unit consists of a conversion motor, a conversion spindle 100, a conversion worktable 110, a radial translation mechanism 200, and a clamping and flipping mechanism 300. The conversion motor is fixed in the middle of the integrated frame and is connected to the conversion spindle 100, which is rotatably mounted on the integrated frame. The top end of the conversion spindle 100 is rigidly connected to the conversion worktable 110. The conversion worktable 110 is radially provided along the conversion spindle 100 for driving the two clamping and flipping mechanisms 300 to move synchronously towards or away from each other. The two clamping and flipping mechanisms 300 move with the conversion worktable 110. The rotating mechanism, in conjunction with the telescopic translation of the radial translation mechanism 200, forms intermittent docking operations with the high-frequency welding station unit and the packaging station unit, respectively. The clamping and flipping mechanism 300 integrates the functions of steel pipe clamping and fixing and posture flipping adjustment, which can adaptively match the horizontal precision clamping conditions of the welding station and the vertical material dropping and stacking conditions of the packaging station, realizing the adaptation of a single mechanism to the needs of two different processes. The high-frequency welding station unit is fixedly installed on one side of the integrated frame and performs high-frequency butt welding on the end of the fitness equipment steel pipe delivered by the clamping and flipping mechanism 300. After the welding is completed, it waits for the station conversion unit to transfer and discharge the material. The packaging station unit consists of a packaging frame 400, a steel pipe baffle 410, fork buckets 500, and a bidirectional packaging mechanism 600. The packaging frame 400 is located on one side of the shifting spindle 100 and is fixed to an integrated frame. Two sets of vertically lifting fork buckets 500 are symmetrically mounted on the packaging frame 400. A steel pipe baffle 410 is vertically fixed on the side of the packaging frame 400 near the shifting spindle 100. The two sets of fork buckets 500, the inner end faces of the packaging frame 400, and the steel pipe baffle 410 complement each other. The two-way packaging mechanism 600 is slidably mounted on the packaging frame 400 along the length of the packaging frame 400. The moving direction of the two-way packaging mechanism 600 on the packaging frame 400 is parallel to the axial direction of the clamping and flipping mechanism 300 clamping the steel pipes. The two-way packaging mechanism 600 can automatically complete the entire packaging operation of constant tension tightening, joint sealing and cutting of excess packaging tape 653 for the neatly stacked steel pipe bundles inside the storage space. After the steel pipe of the fitness equipment to be processed is clamped by the clamping and flipping mechanism 300, the shifting motor drives the shifting spindle 100 to rotate the shifting worktable 110. The shifting worktable 110 transfers the clamped steel pipe to the corresponding working position of the high-frequency welding station unit. Subsequently, the radial translation mechanism 200 extends, driving the clamping and flipping mechanism 300 and the steel pipe to be precisely fed into the welding work area. At the same time, the clamping and flipping mechanism 300 completes the fine-tuning and flipping of the steel pipe's posture, so that the butt joint end of the steel pipe is precisely fitted into the welding station, meeting the horizontal alignment processing requirements of high-frequency welding. The unit starts and completes the high-frequency butt welding operation at the end of the steel pipe. After the welding process is completed, the radial translation mechanism 200 drives the clamping and flipping mechanism 300 and the steel pipe to retract and reset. The clamping and flipping mechanism 300 maintains a stable clamping state on the steel pipe and completes the flipping and reset of the steel pipe posture. At the same time, the shifting worktable 110 rotates and resets slightly, so that the welded steel pipe is removed from the welding station operation area, effectively avoiding the problem of structural interference or collision between the steel pipe and the high-frequency welding station unit and the packaging station unit during the continuous operation of the device, and ensuring the safety and stability of the device operation. After completing the reset and avoidance, the shift motor drives the shift spindle 100 and the shift worktable 110 to rotate, so that the clamping and flipping mechanism 300 can rotate the welded steel pipe to one side of the packaging station unit. At this time, the two sets of fork buckets 500 of the packaging station unit are simultaneously raised and lowered to adjust to the standard receiving height, the radial translation mechanism 200 extends again, and the clamping and flipping mechanism 300 performs the flipping and unloading action, smoothly and accurately placing the single welded steel pipe into the packaging and storage space, thereby completing the single automatic unloading operation of the steel pipe. After a single steel pipe is unloaded, the various mechanisms of the workstation conversion unit are reset sequentially, continuously cycling through the steel pipe loading, welding, transfer, and unloading processes, continuously stacking the welded finished steel pipes into the packaging and storage space; when the number of steel pipes in the storage space reaches the set packaging quantity, the two sets of forklifts 500 are raised synchronously, cooperating with the steel pipe baffle 410 to laterally limit and align the entire bundle of steel pipes, ensuring that the entire bundle of steel pipes is neatly placed within the effective packaging operation range of the bidirectional packaging mechanism 600; subsequently, the slidingly installed bidirectional packaging mechanism 600 moves along the length of the packaging frame 400. The reciprocating movement adapts to the axial layout of the steel pipes, performing all-around wrapping, constant tension tightening, 653 joint pressing and sealing of the packing straps, and automatic cutting of excess material, completing the entire automated packing process. After a single packing operation is completed, the two sets of 500 forklifts continue to lift, raising the bundled steel pipes away from the packing and storage area, providing ample clearance for subsequent automated material discharge and transfer. Ultimately, this achieves integrated, fully automated, and continuous operation of fitness equipment steel pipes from high-frequency welding to automatic bundling and packing.

[0033] It should be noted that the multi-functional structure of the workstation conversion unit, which features radial translation, circumferential rotation, and posture flipping, can be matched with the horizontal clamping conditions of the welding workstation and the material stacking and unloading conditions of the packaging workstation. This simplifies the overall machine structure, reduces the overall manufacturing cost, and achieves seamless connection between welding and packaging processes. The steel pipe can complete two core processes in a single clamping and transfer, reducing the number of clamping operations and significantly improving processing accuracy and product appearance quality. The liftable fork bucket 500 in the packaging workstation unit, together with the fixed steel pipe baffle 410, forms a storage space. During the material stacking process, it automatically completes the limit alignment and orderly sorting of the steel pipes, eliminating the need for manual sorting and significantly improving the regularity and strength of the steel pipe bundle packaging. The bidirectional packaging mechanism 600 slides parallel to the steel pipe clamping axis, perfectly adapting to the steel pipe bundle layout structure. It performs all-round wrapping, constant tension tightening, 653 joint pressing and sealing of the packaging tape, and automatic cutting of excess tape on the orderly steel pipe bundle, thereby completing the bidirectional constant force packaging of both ends of the steel pipe bundle.

[0034] like Figures 1 to 4 As shown, in a preferred embodiment of the present invention, the radial translation mechanism 200 includes a radial motor 210, a radial gear 220, two radial racks 230, two radial guide rail seats 240, and two radial linear guide rails 250. The radial motor 210 is vertically mounted on the transposition worktable 110. The radial gear 220 is coaxially fixed on the output end of the radial motor 210. Two radial racks 230 are symmetrically meshed on the left and right sides of the radial gear 220. The two radial racks 230 are radially slidably mounted on the transposition worktable 110 along the transposition main shaft 100. The ends of the two radial racks 230 are respectively fixedly connected to two radial guide rail seats 240 symmetrically arranged on both sides of the transposition worktable 110. Each of the two radial guide rail seats 240 is fixedly equipped with a clamping and flipping mechanism 300, and the two radial guide rail seats 240 are radially slidably mounted on the transposition worktable 110 through two radial linear guide rails 250.

[0035] Specifically, the radial motor 210, acting as an independent translational power source, drives the central radial gear 220 to rotate in either the forward or reverse direction during operation. Utilizing the symmetrical meshing transmission characteristics of the radial gear 220, it drives the two radial racks 230 to generate synchronous, opposite linear displacements. The racks drive the corresponding radial guide rail seats 240 to perform high-precision radial sliding along the radial linear guide rails 250, thereby achieving symmetrical translational movement of the two sets of clamping and flipping mechanisms 300, moving synchronously towards each other or synchronously away from each other. During welding operations, the clamping and flipping mechanisms 300 extend synchronously to precisely deliver the steel pipe into the welding station for alignment welding. After welding, they retract synchronously to avoid collisions at the workstation. During material transfer and unloading, they extend precisely again, combining with the flipping feature to complete precise unloading. Throughout the process, the synchronous splitting structure of the gears and racks ensures the consistency of displacement, alignment accuracy, and motion synchronization of the clamping and flipping mechanisms 300 on both sides.

[0036] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, the clamping and flipping mechanism 300 includes an adjusting component 310, two adjusting sliders 320, and a flipping component 330. The adjusting component 310 is perpendicular to the laying direction of the radial linear guide 250 and is fixed on the radial guide seat 240. Two adjusting sliders 320 are symmetrically slidably mounted at both ends of the adjusting component 310. Each of the two adjusting sliders 320 is equipped with a hinge seat 321 that is rotatably connected to the flipping component 330. A self-centering clamp is fixed at the flipping end of the flipping component 330.

[0037] The pitch adjustment assembly 310 includes a pitch adjustment track 311 and a pitch adjustment screw 312. The pitch adjustment track 311 is perpendicular to the laying direction of the radial linear guide 250 and is fixed on the radial guide seat 240. The pitch adjustment screw 312 is mounted parallel to the length direction of the pitch adjustment track 311. The pitch adjustment slider 320 is slidably installed in the pitch adjustment track 311. The pitch adjustment screw 312 is threadedly connected to two pitch adjustment sliders 320.

[0038] Specifically, the adjusting screw 312 uses positive and negative threads to adapt to two adjusting sliders 320. When the adjusting screw 312 rotates, it drives the two adjusting sliders 320 to make symmetrical synchronous displacement along the adjusting track 311 based on the thread transmission principle, quickly adjusting the clamping center distance of the two sets of self-centering clamps, adapting to the clamping and fixing of steel pipes of different lengths and specifications of fitness equipment. After the spacing adjustment is completed and the positioning is locked, the two sets of self-centering clamps stably clamp both ends of the steel pipe. During the operation of the whole machine, the clamping and flipping mechanism 300 completes radial feeding and retraction based on the radial translation mechanism 200, and realizes the overall angle flipping of the clamp based on its own flipping component 330. With the help of the storage space on the fork bucket 500, it completes precise material stacking and unloading. At the same time, the adjusting component 310 and the radial translation mechanism 200 are arranged perpendicular to each other to realize two-way dimensional adjustment of radial position adjustment and lateral pipe length adjustment, fully adapting to the clamping and transfer operation of steel pipes of different specifications.

[0039] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, the flipping assembly 330 includes a flipping motor 331, a main flipping rod 332, a secondary flipping rod 333, a clamping platform 334, a connecting block 335, and a hinge shaft 336. The flipping motor 331 is fixedly mounted on the adjustable slider 320. The main flipping rod 332 is coaxially fixed to the output end of the flipping motor 331. The free end of the main flipping rod 332 is rotatably hinged to the bottom of the clamping platform 334 through the secondary flipping rod 333. A self-centering clamp is fixed to the top of the clamping platform 334. A connecting block 335 is fixed to the bottom end of the clamping platform 334 near the hinge seat 321. The connecting block 335 is rotatably hinged to the hinge seat 321 through the hinge shaft 336.

[0040] It should be noted that: a limiting boss 322 is vertically provided at the end of the adjustable slider 320 away from the hinge seat 321. The limiting boss 322 is set directly opposite the flipping and swinging path of the clamping table 334, which can mechanically and rigidly limit the downward flipping limit position of the clamping table 334, effectively limiting the flipping angle of the clamping table 334, and preventing structural interference, component collision and steel pipe posture deviation caused by excessive rotation and overtravel swing of the clamping table 334.

[0041] Specifically, the flipping motor 331 serves as the power source for attitude adjustment. During operation, it drives the main flipping rod 332 to rotate and swing at a fixed angle. The main flipping rod 332 forms a linkage transmission structure through the auxiliary flipping rod 333. Utilizing the linkage push-pull drive principle, it drives the clamping table 334 to perform a controllable angle flipping motion with the hinge shaft 336 as the rotation fulcrum. The flipping posture of the clamping table 334 is precisely controlled by the forward and reverse rotation of the motor. During operation, it can automatically switch between a horizontal clamping welding posture and an inclined unloading and packaging posture. When welding is required, the flipping component 330 drives the clamping table 334 to maintain a horizontal locking state, ensuring that the steel pipe is horizontally aligned and meeting the coaxiality and flatness processing requirements of high-frequency welding. When unloading to the packaging station is required, the flipping component 330 drives the clamping table 334 to flip and tilt downwards. With the help of gravity, the steel pipe smoothly detaches from the self-centering clamp and accurately falls into the packaging and storage space.

[0042] like Figure 1 , Figures 7 to 11 As shown, in a preferred embodiment of the present invention, the bidirectional packaging mechanism 600 includes a bidirectional translation component 610, a T-shaped packaging table 620, a circumferential rotation component 630, a packaging motor 640, and a wrapping component 650. The bidirectional translation component 610 is mounted on the packaging frame 400 along its length. The T-shaped packaging table 620 is vertically fixed to the power output end of the bidirectional translation component 610. A circular clearance opening 621 is provided in the middle of the T-shaped packaging table 620 for the steel pipe. The T-shaped packing platform 620 performs centering, avoidance, and wrapping operations. The left and right sides of the T-shaped packing platform 620 are the packing side and the driving side, respectively. The packing side of the T-shaped packing platform 620 has auxiliary pulleys 622 and circumferential rotating components 630 distributed equidistantly along the axis of the avoidance opening 621. One end of the circumferential rotating component 630 extends to the driving side of the T-shaped packing platform 620 and is connected to the packing motor 640 for transmission. The wrapping component 650 is coaxially arranged on the packing side of the T-shaped packing platform 620 and is rotatably connected to the circumferential rotating component 630.

[0043] The bidirectional translation component 610 includes a bidirectional motor 611, a transmission belt 612, a double-rotating lead screw 613, a screw fitting 614, a bidirectional guide rail seat 615, and a bidirectional linear guide 616. The bidirectional linear guide 616 is fixed on the packing frame 400 along its length and located below the fork bucket 500. The two ends of the bidirectional linear guide 616 are symmetrically and slidably fitted with bidirectional guide rail seats 615. A screw fitting 614 that is threaded into the double-rotating lead screw 613 is fixed on one side of the bidirectional guide rail seat 615. A T-shaped packing table 620 is fixed on the bidirectional guide rail seat 615. The double-rotating lead screw 613 is parallel to the bidirectional linear guide 616 and rotatably mounted on the packing frame 400. The middle part of the double-rotating lead screw 613 is connected to the power output end of the bidirectional motor 611 fixed on the packing frame 400 via the transmission belt 612.

[0044] Specifically, after the bidirectional motor 611 starts, it drives the double-rotating screw 613 to rotate via the transmission belt 612. Utilizing the positive and negative thread structure at both ends of the double-rotating screw 613, it drives the screw-on components 614 on both sides and the bidirectional guide rail seat 615 to perform symmetrical translational movements along the bidirectional linear guide rail 616, synchronously clamping in opposite directions or synchronously opening in opposite directions. This achieves the overall lateral alignment, centering calibration, and stroke adjustment of the T-shaped packing table 620, ensuring that the circular clearance opening 621 of the T-shaped packing table 620 is always coaxially aligned with the center of the steel pipe bundle. After completing the lateral alignment adjustment, the packing motor 640 drives the circumferential rotating component 630 to rotate. The circumferential rotating component 630 carries... The dynamic wrapping and packaging component 650 performs continuous circumferential rotation around the circular clearance opening 621 and the neatly stacked steel pipe bundles inside. With the help of the auxiliary pulley 622, it achieves stable guidance of the packing strap 653, and completes the entire set of automated packaging processes in sequence, including strapping 653 threading, circumferential wrapping, constant tension tightening, joint pressing and sealing, and cutting off excess strapping material. In addition, the bidirectional translation component 610 can finely adjust the lateral position of the packaging station in real time according to the length of the steel pipe bundles and the number of stacks, ensuring that the wrapping strap 653 is centered and the force is balanced. With the lifting and regular structure of the whole machine fork bucket 500, it realizes standardized and highly consistent bidirectional alignment and wrapping operations.

[0045] like Figures 7 to 11As shown, in a preferred embodiment of the present invention, the circumferential rotating assembly 630 includes an H-shaped rotating wheel 631, a rotating shaft 632, a synchronous wheel 633, and a synchronous belt 634. The H-shaped rotating wheels 631 are equidistantly distributed circumferentially on the packing side of the T-shaped packing table 620 along the axis of the clearance opening 621, and are rotatably mounted on the T-shaped packing table 620 via the rotating shaft 632. The multiple H-shaped rotating wheels 631 are tensioned and assembled together to support the winding packing assembly 650, so that the winding packing assembly 650 can form a closed-loop rotation path circumferentially. One end of the rotating shaft 632 extends to the driving side of the T-shaped packing table 620 and is coaxially fixed to the synchronous wheel 633. The multiple synchronous wheels 633 are connected by the synchronous belt 634 to form a closed synchronous transmission cooperation. One of the synchronous wheels 633 is connected to the power output end of the packing motor 640 via a coupling.

[0046] Specifically, after the packaging motor 640 starts, it drives one set of synchronous pulleys 633 to rotate through the coupling. Then, through the closed-loop transmission of the synchronous belt 634, it drives all synchronous pulleys 633, rotating shaft 632, and H-shaped rotating pulleys 631 to rotate synchronously. The multiple H-shaped rotating pulleys 631, which are evenly distributed around the circumference, adopt a ring array layout to jointly support and pull the winding and packaging assembly 650 to make a uniform circumferential rotational motion around the outer perimeter of the circular clearance opening 621. With the centering alignment completed by the bidirectional translation assembly 610 and the fork bucket 500 in the early stage, the winding and packaging assembly 650 stably surrounds the regularized steel pipe bundle to continuously wind and feed the belt. Combined with the equipment's tightening, pressing, and belt breaking structure, the closed-loop bundling and packaging operation of the entire bundle of steel pipes is completed.

[0047] It should be noted that the groove structure of the H-shaped rotating wheel 631 and the auxiliary pulley 622 can provide lateral positioning and anti-deviation protection for the wrapping and packaging assembly 650, ensuring that the packaging tape 653 has a stable trajectory throughout the entire process, does not deviate, and does not fall out of the groove, thus achieving continuous, uniform, and constant tension circumferential wrapping action.

[0048] like Figures 7 to 11 As shown, in a preferred embodiment of the present invention, the wrapping assembly 650 includes an annular rotating block 651, a reel 652, a packing strap 653, and a locking clamp 654. The annular rotating block 651 is coaxially disposed on the packing side of the T-shaped packing table 620. The edge end face of the annular rotating block 651 is rotatably connected to a plurality of H-shaped rotating wheels 631 and auxiliary pulleys 622. A reel 652 is installed on one end face of the annular rotating block 651. The packing strap 653 is wound and stored inside the reel 652. The starting winding end of the packing strap 653 is fixedly engaged inside the locking clamp 654. The locking clamp 654 is fixed on the T-shaped packing table 620.

[0049] Specifically, when the device enters the packaging mode, the locking clamp 654 fixes and locks the starting end of the packaging strap 653, completing the initial positioning of the packaging strap 653; the packaging motor 640 drives one of the synchronous pulleys 633 to rotate through the coupling, and then through the closed-loop transmission of the synchronous belt 634, drives all the synchronous pulleys 633, the rotating shaft 632 and the H-shaped rotating pulley 631 to rotate synchronously; the multiple H-shaped rotating pulleys 631, which are evenly distributed around the circumference, adopt a ring array layout, jointly supporting and pulling the ring rotating block 651 to rotate at a uniform speed around its own axis. The reel 652 revolves synchronously with the ring rotating block 651, continuously releasing the packaging strap 653 and winding it around the centrally aligned steel pipe bundle in a full circle, thereby completing the multi-layer regular winding of the steel pipe bundle; after the number of winding turns reaches the standard, in conjunction with the tightening, pressing and strap breaking functions of the whole machine packaging mechanism, the steel pipe bundle is tied and fixed. After the operation is completed, the ring rotating block 651 is reset, waiting for the next round of packaging operation.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment, comprising an integrated frame, characterized in that, The integrated frame is equipped with a high-frequency welding station unit, a station conversion unit and a packaging station unit, with the station conversion unit located between the high-frequency welding station unit and the packaging station unit. The workstation conversion unit consists of a conversion motor, a conversion spindle, a conversion worktable, a radial translation mechanism, and a clamping and flipping mechanism. The conversion motor is fixed in the middle of the integrated frame and is driven by the conversion spindle rotatably mounted on the integrated frame. The top of the conversion spindle is rigidly connected to the conversion worktable. The conversion worktable is radially provided along the conversion spindle for driving the two clamping and flipping mechanisms to move synchronously towards and away from each other. The two clamping and flipping mechanisms rotate with the conversion worktable and, in conjunction with the telescopic translation of the radial translation mechanism, form intermittent docking operations with the high-frequency welding workstation unit and the packaging workstation unit, respectively. The clamping and flipping mechanism integrates the functions of steel pipe clamping and fixing and posture flipping adjustment. The high-frequency welding workstation unit is fixedly installed on one side of the integrated frame and performs high-frequency butt welding on the ends of the fitness equipment steel pipes delivered to the position by the clamping and flipping mechanism. The packaging station unit consists of a packaging frame, a steel pipe baffle, forks, and a bidirectional packaging mechanism. The packaging frame is located on one side of the transposition spindle and is fixed on an integrated frame. Two sets of vertically lifting forks are symmetrically mounted on the packaging frame. A steel pipe baffle is vertically fixed on the side of the packaging frame near the transposition spindle. The two sets of forks, the inner end face of the packaging frame, and the steel pipe baffle cooperate with each other to form a packaging and storage space for accommodating multiple fitness equipment steel pipes. The bidirectional packaging mechanism is slidably mounted on the packaging frame along its length. The direction of movement of the bidirectional packaging mechanism on the packaging frame is parallel to the axial direction of the clamping and flipping mechanism that holds the equipment steel pipes. The bidirectional packaging mechanism is used to automatically complete the entire packaging operation of constant tension tightening, joint sealing, and cutting of excess packing tape for the neatly stacked steel pipe bundles inside the storage space.

2. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 1, characterized in that, The radial translation mechanism includes a radial motor, a radial gear, two radial racks, two radial guide rail seats, and two radial linear guide rails. The radial motor is vertically mounted on the transposition worktable. A radial gear is coaxially fixed to the output end of the radial motor. Two radial racks are symmetrically meshed on the left and right sides of the radial gear. The two radial racks are radially slidably mounted on the transposition worktable along the transposition main shaft. The ends of the two radial racks are respectively fixedly connected to two radial guide rail seats symmetrically arranged on both sides of the transposition worktable. Each of the two radial guide rail seats is fixed with a clamping and flipping mechanism, and the two radial guide rail seats are radially slidably mounted on the transposition worktable through two radial linear guide rails.

3. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 2, characterized in that, The clamping and flipping mechanism includes an adjusting component, two adjusting sliders, and a flipping component. The adjusting component is perpendicular to the laying direction of the radial linear guide and is fixed on the radial guide seat. Two adjusting sliders are symmetrically slidably mounted at both ends of the adjusting component. Each of the two adjusting sliders is equipped with a hinge seat that is rotatably connected to the flipping component. A self-centering clamp is fixed at the flipping end of the flipping component.

4. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 3, characterized in that, The pitch adjustment assembly includes a pitch adjustment track and a pitch adjustment screw. The pitch adjustment track is perpendicular to the laying direction of the radial linear guide rail and is fixed on the radial guide rail seat. The pitch adjustment screw is mounted parallel to the length direction of the pitch adjustment track. The pitch adjustment slider is slidably installed in the pitch adjustment track. The pitch adjustment screw is threadedly connected to two pitch adjustment sliders.

5. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 3, characterized in that, The flipping assembly includes a flipping motor, a main flipping rod, a secondary flipping rod, a clamping platform, a connecting block, and a hinge shaft. The flipping motor is fixedly mounted on the adjustable slider. The main flipping rod is coaxially fixed to the output end of the flipping motor. The free end of the main flipping rod is rotatably hinged to the bottom of the clamping platform through the secondary flipping rod. A self-centering clamp is fixed to the top of the clamping platform. A connecting block is fixed to the bottom of the clamping platform near the hinge seat. The connecting block is rotatably hinged to the hinge seat through the hinge shaft.

6. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 5, characterized in that, A limiting boss is vertically provided at one end of the adjustable slider away from the hinge seat. The limiting boss is positioned directly opposite the flipping and swinging path of the clamping table and mechanically limits the downward flipping limit position of the clamping table.

7. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 1, characterized in that, The bidirectional packaging mechanism includes a bidirectional translation component, a T-shaped packaging platform, a circumferential rotation component, a packaging motor, and a wrapping packaging component. The bidirectional translation component is installed on the packaging frame along its length. A T-shaped packaging platform is vertically fixed to the power output end of the bidirectional translation component. A circular clearance opening is provided in the middle of the T-shaped packaging platform. The left and right sides of the T-shaped packaging platform are the packaging side and the driving side, respectively. Auxiliary pulleys and the circumferential rotation component are equidistantly distributed along the axis of the clearance opening on the packaging side of the T-shaped packaging platform. One end of the circumferential rotation component extends to the driving side of the T-shaped packaging platform and is connected to the packaging motor for transmission. The wrapping packaging component is coaxially arranged on the packaging side of the T-shaped packaging platform and is rotatably connected to the circumferential rotation component.

8. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 7, characterized in that, The bidirectional translation component includes a bidirectional motor, a transmission belt, a dual-rotation screw, a screw-connecting assembly, a bidirectional guide rail seat, and a bidirectional linear guide. The bidirectional linear guide is fixed on the packing frame along its length and located below the fork bucket. Bidirectional guide rail seats are symmetrically slidably mounted at both ends of the bidirectional linear guide. A screw-connecting assembly that threadedly engages with the dual-rotation screw is fixed on one side of the bidirectional guide rail seat. A T-shaped packing table is fixed on the bidirectional guide rail seat. The dual-rotation screw is parallel to the bidirectional linear guide and rotatably mounted on the packing frame. The middle part of the dual-rotation screw is connected to the power output end of the bidirectional motor fixed on the packing frame via a transmission belt.

9. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 7, characterized in that, The circumferential rotating assembly includes an H-shaped rotating wheel, a rotating shaft, a synchronous pulley, and a synchronous belt. The H-shaped rotating wheels are equidistantly distributed circumferentially along the axis of the clearance opening on the packaging side of the T-shaped packaging platform and are rotatably mounted on the T-shaped packaging platform via the rotating shaft. The multiple H-shaped rotating wheels are tensioned and supported together to wrap the packaging assembly. One end of the rotating shaft extends to the drive side of the T-shaped packaging platform and is coaxially fixed to the synchronous pulley. The multiple synchronous pulleys are connected by synchronous belt transmission to form a closed synchronous transmission fit. One of the synchronous pulleys is connected to the power output end of the packaging motor via a coupling.

10. The integrated device for high-frequency welding and automatic packaging of steel pipes for fitness equipment according to claim 9, characterized in that, The wrapping assembly includes an annular rotating block, a reel, packing tape, and a locking clamp. The annular rotating block is coaxially arranged on the packing side of the T-shaped packing table. The edge end face of the annular rotating block is rotatably connected to multiple H-shaped rotating wheels and auxiliary pulleys. A reel is installed on one end face of the annular rotating block. The packing tape is wound and stored inside the reel. The starting wrapping end of the packing tape is fixedly engaged inside the locking clamp, and the locking clamp is fixed on the T-shaped packing table.

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