A tee pipe welding and clamping assembly applied to radiator processing

Abstract

The present application relates to the technical field of radiator welding, and discloses a tee pipe welding and clamping assembly applied to radiator processing, which comprises a conveying module, a welding main machine and a feeding and clamping module, the conveying module is used for conveying two layers of radiator plate materials in up-down alignment, and the welding main machine is provided with a welding execution mechanism, the present application realizes the processing effect of differential guiding and conveying of the upper and lower two layers of radiator plate materials by setting the conveying module, the welding main machine, the feeding and clamping module and cooperating with a special sheet guiding mechanism, relying on the sectional guiding layout structure of the guiding inclined section and the guiding parallel section, effectively improves the fault tolerance and assembly convenience of tee pipe assembly operation, and helps to complete the self-adaptive flaring operation of the local assembly spacing without changing the whole machine conveying reference and the overall conveying posture of the plate material, and improves the industry pain points of the traditional radiator plate material fixed spacing conveying, small pipe assembly space and difficult alignment.

Description

Technical Field

[0001] This invention relates to the field of radiator welding technology, specifically to a T-pipe welding clamping assembly used in radiator processing. Background Technology

[0002] With the continuous development of the heating equipment industry, radiators, as the core equipment for civil and industrial heating, are gradually upgrading their production and processing technology towards automation, high precision, and large-scale production. The main body of a radiator is formed by welding multiple layers of metal plates and tee fittings. The welding and assembly precision of the tee fittings and double-layer plates directly determines the structural strength, sealing performance, and finished product appearance quality of the radiator. In existing automated production lines, a double-layer alignment conveying method is commonly used to continuously feed the radiator plates, and an independent feeding mechanism is used to clamp and place the tee fittings. Finally, resistance welding equipment is used to complete the integrated welding and fixing of the fittings and plates. This type of continuous processing mode can effectively improve the production efficiency of radiators and meet the needs of large-scale industrial production. Therefore, it is widely used in various radiator forming and processing processes.

[0003] However, in long-term actual production applications, existing radiator tee welding and clamping equipment still has significant technical defects and process shortcomings. Traditional equipment always maintains a fixed spacing for parallel conveying of double-layer radiator plates. The plate spacing is basically the same as the height of the tee fittings, resulting in a small assembly space. During the automatic feeding and alignment of the tee pipes, problems such as pipe skewing, offset, jamming, and inaccurate placement are very likely to occur. The assembly error tolerance is low, which seriously affects the welding accuracy and production yield.

[0004] To solve the assembly problem with narrow spacing, some existing technologies use an overall telescopic adjustment structure to change the overall conveying spacing of the two layers of boards. However, due to the large length of the radiator boards and the high requirements for conveying continuity, modifying the spacing of the overall conveying structure requires significant alterations to the conveying base, limiting structure, and alignment structure. This results in high modification costs, poor equipment adaptability, and the need to add supporting expansion and reset strokes, leading to complex control logic and a high risk of secondary problems such as board reset deviation, conveying misalignment, and damage to overall flatness.

[0005] In addition, the existing T-pipe feeding and clamping structures also have significant adaptation defects. The clamping force of traditional clamping mechanisms is mostly a fixed parameter, which cannot adaptively adjust the clamping state according to the actual assembly gap. In the assembly scenario of plates with narrow fixed gaps, adaptation imbalance is very likely to occur. If the clamping structure clamps too tightly, the rigid clamping force can easily squeeze and deform the T-pipe fitting, causing fitting deformation and port deviation, resulting in insufficient welding fit and reduced sealing performance. If the clamping force is too loose, the clamping structure cannot provide a stable limit for the T-pipe. During the process of pushing and feeding and inserting into the gap between two layers of radiator plates, the fitting is very likely to rotate, tilt, shift or even fall off, resulting in poor assembly alignment accuracy and assembly failure.

[0006] Therefore, this invention proposes a tee pipe welding clamping assembly for use in radiator processing. Summary of the Invention

[0007] The purpose of this invention is to provide a T-pipe welding clamping assembly for use in radiator manufacturing, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a T-pipe welding clamping assembly for radiator processing, comprising a conveying module, a welding host, and a feeding clamping module. The conveying module is used for vertically aligning and conveying two layers of radiator sheets. The welding host is equipped with a welding actuator. The feeding clamping module is used to clamp the T-pipe and place it between the upper and lower layers of radiator sheets. It also includes a sheet guiding mechanism, which comprises a guide inclined section and a guide parallel section. Both the guide inclined section and the guide parallel section are located along the conveying direction on the side close to the welding host, with the guide inclined section positioned above the guide parallel section. The guide inclined section guides and expands the upper radiator sheet, causing it to bend upwards and increasing the assembly spacing for the T-pipe. The guide parallel section supports the lower radiator sheet, ensuring the lower radiator is conveyed horizontally and parallel.

[0009] Preferably, the sheet guiding mechanism further includes a guide mounting base, which is fixedly connected between the conveying module and the welding host, and the guide inclined section and the guide parallel section are both mounted on the guide mounting base.

[0010] Preferably, the guide inclined section includes a guide strip and a guide roller. The guide strip is installed on the surface of the guide mounting seat, and at least one guide roller is provided and rotatably connected to the surface of the guide strip. The guide parallel section is equipped with a parallel roller for supporting the radiator plate below.

[0011] Preferably, the guide mounting base is provided with an attitude adjustment mechanism, which is used to adjust the working attitude of the guide bar and the guide roller, so that the guide bar can switch between an inclined state and a horizontal state parallel to the guide parallel section, thereby changing the bending amplitude of the upper radiator plate.

[0012] Preferably, the attitude adjustment mechanism includes a drive cylinder, which is mounted on the surface of the guide mounting base. The guide bar is hinged to the guide mounting base on the side closer to the conveying module. The drive cylinder is mounted on the side of the guide bar away from the hinge point. When the drive cylinder extends or retracts, it can push and pull the guide bar to rotate around the hinge point, thereby realizing the attitude switching of the guide bar between the inclined state and the horizontal state.

[0013] Preferably, the bottom of the guide bar is provided with a groove, and a slider is slidably connected inside the groove. The slider is hinged to the output shaft of the drive cylinder.

[0014] Preferably, the attitude adjustment mechanism includes a motor, which is mounted on a guide mounting base. The guide mounting base has a guide groove on its surface, and the guide strip is slidably connected inside the guide groove, allowing it to move up and down along the guide groove as a whole.

[0015] Preferably, a cam is fixedly connected to the output shaft of the motor. The cam is always in contact with the bottom of the guide bar. The rotation of the cam pushes the guide bar, causing the guide bar to rise and fall along the guide groove, thereby adjusting the working posture of the guide bar. When the guide bar descends to the lowest limit position, at most one guide roller contacts the upper radiator plate, and the guide roller is horizontally parallel to the parallel roller on the guide parallel section.

[0016] Preferably, the conveying module is provided with a plurality of conveying rollers, which are evenly arranged along the conveying direction of the radiator panels. The conveying rollers serve as the conveying foundation of the overall equipment and are used to support and smoothly convey the upper and lower layers of radiator panels.

[0017] Preferably, the welding actuator includes an upper electrode and a lower electrode that can move relative to each other, used to clamp the upper and lower radiator plates with the tee pipe inserted in them at the welding station and perform resistance welding.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a conveying module, a welding host, and a feeding clamping module in conjunction with a dedicated sheet material guiding mechanism, and relying on a segmented guiding layout structure of inclined and parallel guiding sections, achieves differentiated guiding and conveying of upper and lower layers of radiator sheet materials. This effectively improves the error tolerance and ease of assembly of T-pipes, and helps to complete adaptive flaring operations of local assembly spacing without changing the overall conveying benchmark of the machine or the overall conveying posture of the sheet materials. This improves upon the traditional industry practices of fixed-spacing conveying of radiator sheet materials, limited assembly space for pipe fittings, and difficulty in alignment. Addressing the pain points, this invention differs from traditional overall spacing adjustment methods. It uses only a guide tilting section to slightly elastically bend and expand the upper radiator panel, while a guide parallel section continuously supports and limits the lower panel, ensuring that the lower panel remains horizontally and neatly conveyed. This provides ample working space for the automatic feeding and pushing assembly of the tee pipe, completely avoiding problems such as pipe jamming, skewing, and inability to be positioned. It also avoids secondary problems such as panel misalignment, resetting deviation, and flatness damage caused by overall spacing adjustment, significantly improving the overall accuracy and processing stability of the radiator tee pipe pre-assembly.

[0019] 2. This invention, by adding an adjustable structure with a posture adjustment mechanism to the guide mounting base, achieves dynamic switching of the working posture of the guide bar and guide roller, effectively improving the processing adaptability and multi-category production capacity of the equipment. It helps to flexibly adjust the bending and unfolding range of the upper plate according to the pipe diameter and assembly height of different specifications of tee pipes, and improves the limitations of traditional fixed guide structures that are only adaptable to a single type and cannot be compatible with the processing of multiple types of radiators. The posture adjustment mechanism allows the guide bar to switch freely between an inclined flared state and a horizontal parallel state, accurately matching the segmented processing technology of welding the four vertices of the radiator and eliminating the need for welding in the middle area. The automatic flaring and unfolding at the front of the welding vertices ensures assembly conditions, and the horizontal posture is reset during the conveying stage of the plate to ensure the flatness of the plate. This effectively avoids elastic fatigue and deformation defects caused by long-term bending of the plate. While improving the versatility of the equipment, it significantly optimizes the forming quality and finished product appearance precision of the radiator plate.

[0020] 3. This invention, through the use of a swing-type drive structure with a front-mounted eccentric hinge and a sliding block, achieves a low-inertia, impact-free, and highly smooth attitude swing adjustment effect for the guide bar. This effectively improves the operational stability and transmission smoothness during attitude switching, helps to eliminate displacement interference between the linear extension and retraction motion of the cylinder and the circular swing motion of the hinge, and improves the problems of easy jamming, impact, and sudden force changes on the plate in traditional rigid transmission structures. The front-mounted eccentric hinge layout can achieve a reasonable flaring angle with a smaller cylinder stroke. The lever arm is evenly distributed, and the swing process is uniform and smooth. Combined with the adaptive sliding compensation function of the sliding block and groove, the guide roller is able to adjust against the plate without shaking or instantaneous pressure changes. It can gradually complete the plate opening and resetting actions, effectively protecting the surface of the thin-walled radiator plate from squeezing, scratching, and deformation damage, significantly reducing the defect rate of the workpiece, and improving the stability and reliability of the equipment's dynamic adjustment.

[0021] 4. This invention, through the use of a motor and cam in a continuous curve lifting structure, achieves a continuous, gradual, and abrupt linear lifting adjustment effect for the guide bar. This effectively improves the positioning accuracy and repeatability of the posture adjustment, making it suitable for high-precision, standardized, and large-scale radiator production lines. It overcomes the shortcomings of traditional linear drive structures, such as hard start / stop, sudden speed changes, impact vibration, and large positioning deviations. Relying on the smooth and continuous curve profile of the cam, the lifting stroke and speed of the guide bar smoothly transition with the motor rotation angle, achieving flexible and gradual adjustment of the plate opening amplitude. This completely eliminates the problem of plate offset and deformation caused by instantaneous force changes. At the same time, the cam structure has mechanical self-locking performance, which can ensure that the guide bar is stably locked at any height, unaffected by external forces during plate conveying. Combined with the pure linear limiting motion of the guide groove, the plate is subjected to constant force angle and uniform pressure, further improving the assembly accuracy and welding consistency of the pipe fittings. Attached Figure Description

[0022] Figure 1 This is a partial frontal perspective three-dimensional schematic diagram of the main structure in Embodiment 1 of the present invention; Figure 2 This is a partial side-view perspective of the main structure in Embodiment 1 of the present invention; Figure 3 This is a partial top-view perspective view of the main structure in Embodiment 1 of the present invention; Figure 4 This is a front view schematic diagram of the sheet guiding mechanism in Embodiment 1 of the present invention; Figure 5 This is a front view schematic diagram of the sheet guiding mechanism in Embodiment 2 of the present invention; Figure 6 This is a partial three-dimensional schematic diagram of the cooperation relationship between the slide, the slider, and the driving cylinder in Embodiment 2 of the present invention; Figure 7This is a partially exploded perspective view of the main structure in Embodiment 2 of the present invention; Figure 8 This is a planar schematic diagram of the guide tilting section in a parallel state in Embodiment 2 of the present invention; Figure 9 This is a partial three-dimensional schematic diagram of the main structure in Embodiment 3 of the present invention; Figure 10 This is a three-dimensional schematic diagram of the guide tilt section in a parallel state in Embodiment 3 of the present invention.

[0023] In the picture: 1. Conveying module; 2. Welding host; 3. Welding actuator; 31. Upper electrode; 32. Lower electrode; 4. Feeding and clamping module; 5. Sheet guiding mechanism; 51. Guide tilting section; 511. Guide bar; 512. Guide roller; 52. Guide parallel section; 53. Guide mounting base; 54. Drive cylinder; 541. Slide groove; 542. Slider; 55. Motor; 551. Cam; 552. Guide groove. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 protection scope of the present invention.

[0025] It should be noted that the conveying module 1, welding host 2, welding execution mechanism 3, upper electrode 31, lower electrode 32, feeding clamping module 4, and position sensor involved in this patent are all existing mature technologies and equipment. Among them, the conveying module 1 realizes the smooth conveying and alignment feeding of the upper and lower layers of radiator plates through the continuous rotation of the built-in conveying rollers; the welding host 2, together with the welding execution mechanism 3, provides the basic carrier and power support for the welding operation, and completes the resistance welding operation of the radiator plate and the T-pipe through the relative clamping movement of the upper electrode 31 and the lower electrode 32; the feeding clamping module 4 relies on its own clamping and linear pushing structure to realize the stable clamping and precise feeding and assembly of the T-pipe; the position sensor collects the plate conveying position signal in real time, and provides a precise triggering basis for the timing action of the attitude adjustment mechanism. The specific internal structure, driving principle and control method of the above structure are all conventional and common technologies in the field. This invention does not improve the structure itself, but only innovates and optimizes the sheet material guiding mechanism 5 used in conjunction with it. Therefore, given the universality and maturity of the above structure, its specific structure and working principle will not be described in detail below.

[0026] Please see Figures 1 to 3The present invention provides an embodiment: A welding clamping assembly for a T-pipe used in radiator processing includes a conveying module 1, a welding host 2, and a feeding clamping module 4. The conveying module 1 is used to convey two layers of radiator sheets vertically and vertically. The welding host 2 is equipped with a welding actuator 3. The feeding clamping module 4 is used to clamp the T-pipe and place it between the upper and lower layers of radiator sheets. It also includes a sheet guiding mechanism 5, which includes a guide inclined section 51 and a guide parallel section 52. Both the guide inclined section 51 and the guide parallel section 52 are arranged along the conveying direction on the side close to the welding host 2, and the guide inclined section 51 is located above the guide parallel section 52. The guide inclined section 51 is used to guide and open the upper radiator sheet, causing the upper radiator sheet to bend upward and increase the assembly spacing for the T-pipe to be inserted. The guide parallel section 52 is used to support the lower radiator sheet, keeping the lower radiator in a horizontal and parallel conveying state.

[0027] Please see Figures 3 to 4 The sheet guiding mechanism 5 also includes a guide mounting base 53, which is fixedly connected between the conveying module 1 and the welding host 2. The guide inclined section 51 and the guide parallel section 52 are both installed on the guide mounting base 53.

[0028] Please see Figure 4 The guide inclined section 51 includes a guide bar 511 and a guide roller 512. The guide bar 511 is installed on the surface of the guide mounting seat 53. At least one guide roller 512 is provided and is rotatably connected to the surface of the guide bar 511. The guide parallel section 52 is equipped with a parallel roller for supporting the heating radiator plate below.

[0029] It should be noted that the conveying module 1 is equipped with several conveying rollers, which are evenly arranged along the conveying direction of the radiator plate. The conveying rollers serve as the conveying foundation of the whole equipment and are used to support and smoothly convey the upper and lower radiator plates. The welding execution mechanism 3 includes an upper electrode 31 and a lower electrode 32 that can move relative to each other. It is used to clamp the upper and lower radiator plates with the T-pipe already inserted at the welding station and to perform resistance welding.

[0030] It should be added that the feeding and clamping module 4 not only has the function of clamping and positioning the T-shaped pipe workpiece, but also has the function of horizontal pushing and displacement. It can accurately push and assemble the clamped and fixed T-shaped pipe into the gap between the upper and lower radiator plates, and complete the pre-assembly of the pipe and the plate.

[0031] In this embodiment, the feeding and clamping module 4 can be any one of the following: clamping cylinder with linear slide, clamping robot, or electric push rod clamping mechanism, as long as it can achieve stable clamping and directional pushing assembly of the three-way pipe. The equipment has a wide range of adaptability and high assembly accuracy.

[0032] It should be noted that in the existing welding process for radiator tee pipes, both the upper and lower radiator panels are transported in parallel with a constant spacing. The assembly spacing between the panels is basically consistent with the height of the tee pipe fittings. In the actual assembly process, the fixed spacing between the panels results in a small working space for the tee pipes. Manual or mechanical loading can easily lead to problems such as pipe misalignment, misalignment, and jamming, resulting in a very low assembly error tolerance rate and seriously affecting the overall assembly efficiency and welding accuracy.

[0033] To address the challenge of assembling radiators with narrow spacing, some existing technologies employ an integrated telescopic adjustment structure to alter the overall spacing between the two layers of radiator panels. However, due to the considerable length of the radiator panels, adjusting the spacing across the entire panel requires extensive modifications to the overall conveying, positioning, and limiting structures of the conveying module 1. This results in extremely high structural modification costs and poor equipment adaptability. Furthermore, the integrated telescopic adjustment structure necessitates the inclusion of spacing opening and resetting strokes. Switching between multiple stroke segments significantly increases the difficulty of equipment control, easily leading to a chain reaction of problems such as panel misalignment, inadequate spacing adjustment, and resetting accuracy deviations. This not only fails to effectively improve assembly quality but also significantly increases equipment failure rates and subsequent maintenance costs, making it impractical.

[0034] Specifically, based on the aforementioned defects in the existing technology, this equipment optimizes the processing technology by adding a dedicated sheet guiding mechanism 5: In actual operation, the conveying module 1 continuously and smoothly conveys the upper and lower layers of radiator sheets through evenly arranged conveying rollers, ensuring that the conveying speed of the two layers of sheets is consistent, the alignment is accurate, and the conveying process is smooth and without jamming.

[0035] When the two layers of radiator panels move with the conveying module 1 to the front of the welding host 2, the panels gradually approach the position of the panel guide mechanism 5. The lower radiator panel moves in close contact with the parallel rollers of the guide parallel section 52 throughout the entire process. The guide parallel section 52 always supports and limits the lower panel, so that the lower radiator panel maintains a horizontal and parallel conveying posture throughout the entire process, without deformation or positional deviation.

[0036] At the same time, the upper radiator plate will come into contact with the guide roller 512 of the guide inclined section 51 during the process. Relying on the inclined structure of the guide bar 511 for guidance and limitation, the upper radiator plate will produce a slight upward bending angle change. By utilizing the slight elastic deformation of the plate itself, the assembly spacing between the upper and lower radiator plates is locally enlarged. Without changing the overall conveying structure, sufficient space for pipe assembly can be formed in front of the welding station.

[0037] After the upper radiator panel is partially flared, the feeding and clamping module 4 can obtain the T-shaped pipe workpiece through manual feeding or automated equipment feeding. After the T-shaped pipe is stably clamped, it is pushed horizontally into the gap between the two layers of panels. The large assembly space can effectively avoid the problems of T-shaped pipe assembly being skewed, stuck, or misaligned, and greatly improve the assembly accuracy and efficiency.

[0038] After the pre-assembly of the T-pipe is completed, the upper and lower radiator panels and the T-pipe workpiece in the middle continue to move to the welding station with the conveyor module 1. Since this solution only performs local minor bending and flaring on the upper panel, the lower panel is horizontally shaped throughout the process, the upper panel has minimal deformation and no plastic deformation occurs, and the overall panel flatness and structural accuracy are not affected.

[0039] Finally, the upper electrode 31 and lower electrode 32 of the welding actuator 3 clamp the workpiece by relative movement, and resistance welding is performed on the joint position of the tee pipe and the radiator plate to stably complete the integrated welding and fixing of the pipe and the plate.

[0040] In summary, this invention abandons the complex modification structure of traditional overall spacing adjustment, and realizes the flaring of the plate through a differentiated local guiding structure. The overall structure is simple, the modification cost is low, and the adaptability is strong. It does not require a complex stroke control and reset structure. It can effectively solve the technical pain points of difficult assembly and easy skewing of T-pipe without damaging the structural precision of the radiator plate or affecting the original conveying process. It takes into account the processing accuracy, assembly efficiency and equipment operation stability, and is extremely practical.

[0041] Please see Figure 5 and Figure 8 Based on Example 1, Example 2: The guide mounting base 53 is equipped with an attitude adjustment mechanism, which is used to adjust the working attitude of the guide bar 511 and the guide roller 512, so that the guide bar 511 can switch between an inclined state and a horizontal state parallel to the guide parallel section 52, thereby changing the bending amplitude of the upper radiator plate.

[0042] Please see Figure 6 and Figure 7 The attitude adjustment mechanism includes a drive cylinder 54, which is mounted on the surface of the guide mounting base 53. The guide bar 511 is hinged to the guide mounting base 53 on the side near the conveying module 1. The drive cylinder 54 is mounted on the side of the guide bar 511 away from the hinge point. When the drive cylinder 54 extends or retracts, it can push and pull the guide bar 511 to rotate around the hinge point, thereby realizing the attitude switching of the guide bar 511 between the inclined state and the horizontal state. A groove 541 is provided at the bottom of the guide bar 511. A slider 542 is slidably connected inside the groove 541. The slider 542 is hinged to the output shaft of the drive cylinder 54.

[0043] It should be noted that, further, the drive cylinder 54 in this embodiment is not the only limited structure. The drive cylinder 54 can be replaced with other drive structures that can realize reciprocating linear motion. Specifically, any one of the following can be selected: electric push rod, linear motor 55, hydraulic push rod, and lead screw slide transmission mechanism. The above equivalent drive structures can all output stable reciprocating linear thrust and pull to meet the swing posture adjustment requirements of guide bar 511. The overall transmission principle, matching structure and working process are consistent. It can be flexibly replaced and adapted according to the actual production scenario, processing accuracy requirements and equipment cost budget, effectively broadening the application scenarios and assembly adaptation range of the equipment.

[0044] It should be added that the guide bar 511 in this embodiment can switch between tilted and horizontal states. The core purpose is to adapt to the welding requirements of different positions of the radiator and the universal processing of different specifications of products. Specifically, the overall welding positions of the radiator and the tee pipe are only distributed at the four vertices of the radiator. Only the four vertices need to be welded and fixed. No welding work is required in the middle area of ​​the radiator.

[0045] Example 1 uses a fixed guide structure with an unadjustable guide posture, only maintaining a single opening for conveying operations, resulting in limited adaptability. This example, however, adds a posture adjustment mechanism, enabling precise timing switching of the guide posture: when the radiator sheet is conveyed to the front area of ​​the welding apex, the guide bar 511 is kept tilted, partially opening and widening the upper radiator sheet to allow sufficient space for precise assembly of the tee pipe, ensuring the accuracy of subsequent apex welding operations. When the sheet is conveyed to the middle area of ​​the radiator where welding is not required, the guide bar 511 can be switched to a horizontal parallel state, restoring the parallel and orderly conveying of the upper and lower radiator sheets, preventing fatigue deformation caused by long-term bending, and ensuring the overall flatness of the sheet. Simultaneously, by flexibly switching between tilted and horizontal postures, it can adapt to the processing and production of tee pipes and radiators of different diameters and specifications, effectively solving the problem of poor adaptability and inability to adapt to multi-variety production with fixed guide structures. Without increasing the difficulty of overall machine modification, it significantly improves the processing flexibility and applicability of the equipment.

[0046] The overall conveying, assembly, and welding working principle of this embodiment is basically the same as that of Embodiment 1. The difference lies in the addition of a posture adjustment mechanism, which enables adjustable switching of the working posture of the guide strip 511. During actual processing, the bending and unfolding range of the upper radiator plate can be flexibly adjusted according to the specifications and dimensions of the tee pipe to be processed and the height of the pipe fittings.

[0047] Specifically, in the actual production and processing process, this embodiment can be equipped with a position sensor to detect the conveying displacement and station position of the radiator sheet in real time. The sensor can be any one of photoelectric sensor, infrared sensor or limit switch. The sensor is electrically coordinated with the equipment control system and drive cylinder 54 to accurately identify the vertex welding area and the middle non-welding area of ​​the radiator sheet, thereby automatically controlling the extension and retraction of drive cylinder 54 to realize the time-sequential and precise switching of the posture of guide bar 511. No manual intervention is required throughout the process, and the degree of automation and processing accuracy are higher.

[0048] When the radiator sheet material is transported to the assembly area in front of the first welding apex, the control system controls the drive cylinder 54 to extend in advance, so that the guide bar 511 always maintains an inclined and open posture. The guide roller 512 is used to partially lift and bend the upper radiator sheet material, increasing the local assembly distance between the upper and lower sheet materials. This ensures that the feeding clamping module 4 can smoothly push the T-pipe into the assembly between the two sheet materials, effectively avoiding assembly skew and jamming problems, and providing a precise assembly foundation for the subsequent welding of the first apex.

[0049] After the first set of vertex welding operations is completed, the plate continues to move along with the conveying module 1. The sensor monitors the conveying distance of the plate in real time and feeds back the signal. The control system controls the drive cylinder 54 to slowly retract and gradually pull back the guide bar 511 to rotate around the hinge point to reset, so that the guide bar 511 gradually switches from the inclined state to the horizontal parallel state.

[0050] When the radiator panels are conveyed to the central area where welding is not required, the guide bar 511 is completely horizontal. At this time, the upper and lower radiator panels are conveyed in a completely parallel and orderly manner, which completely avoids the problem of elastic fatigue, deformation and warping caused by the panels being in a bent state for a long time, and effectively ensures the overall flatness and product quality of the radiator panels.

[0051] When the sensor detects that the plate is about to be transported to the second set of welding apex areas, the control system controls the drive cylinder 54 to extend again, pulling the guide bar 511 to switch to the tilted and open posture again, and enlarges the plate assembly spacing to meet the pre-assembly requirements of the T-pipe welding at the second set of apex positions. This cycle is repeated to precisely adapt to the exclusive processing technology of welding the four apex points of the radiator and transporting the middle empty space.

[0052] Crucially, the present invention employs a front-mounted eccentric hinge design near the side of the conveying module 1, which is the core key to ensuring extremely stable attitude adjustment in this embodiment. In this embodiment, the hinge fulcrum of the guide bar 511 and the guide mounting base 53 is close to the material feeding end, which makes the swing center of the entire guide bar 511 forward and the lever arm evenly distributed. During the entire process of the drive cylinder 54 pushing and pulling, the guide bar 511 always makes a low-amplitude, uniform, and low-inertia arc fine-tuning motion, without end shaking, instantaneous impact, or sudden angle changes.

[0053] This hinged structure ensures that the guide roller 512 maintains a gradual fit and release from the radiator panel when adjusting its position, resulting in a smooth and even pressure transition. It prevents sudden lifting or falling, completely eliminating problems such as panel compression, denting, scratches, and bouncing / shifting that are common with traditional adjustment structures.

[0054] Simultaneously, the adaptive sliding compensation structure of the bottom slide groove 541 and slider 542 perfectly eliminates the motion interference between the linear motion of the cylinder and the arc motion of the hinge, making the entire swing process uniformly damped, smooth in transmission, and without any jamming. This further enhances the overall adjustment stability. This stable hinge swing structure can precisely fine-tune the opening amplitude of the plate to adapt to different pipe fittings, and can also protect the forming accuracy of the thin-walled radiator plate to the greatest extent. It takes into account both dynamic adjustment capability and conveying stability. The structure is ingenious and highly practical.

[0055] Please see Figure 9 and Figure 10 Based on Example 1, Example 3: The attitude adjustment mechanism includes a motor 55, which is mounted on a guide mounting base 53. A guide groove 552 is provided on the surface of the guide mounting base 53. A guide bar 511 is slidably connected inside the guide groove 552 and can move up and down along the guide groove 552 as a whole.

[0056] Please see Figure 9 and Figure 10 A cam 551 is fixedly connected to the output shaft of the motor 55. The cam 551 is always in contact with the bottom of the guide bar 511. The rotation of the cam 551 pushes the guide bar 511, causing the guide bar 511 to rise and fall along the guide groove 552, thereby adjusting the working posture of the guide bar 511. When the guide bar 511 descends to the lowest limit position, at most one guide roller 512 will contact the upper radiator plate, and the guide roller 512 will be horizontally parallel to the parallel roller on the guide parallel section 52.

[0057] It should be noted that the drive structure composed of motor 55 and cam 551 in this embodiment is the preferred solution. In actual applications, motor 55 can also be replaced by stepper motor 55, servo motor 55 and other similar rotary drive components. All kinds of rotary drive devices can drive cam 551 to rotate in a circle. The transmission logic is consistent with the overall action. It can be flexibly selected according to the control accuracy and cost requirements of the equipment. The bottom of cam 551 and guide bar 511 are in continuous contact and cooperation. No additional locking components are required. The guide bar 511 can be continuously driven to complete the lifting action by relying on the contour change of cam 551. The structure is simple and the transmission is reliable.

[0058] Specifically, this embodiment can also be equipped with a position sensor to detect the conveying position of the radiator sheet. Based on the location of the sheet in the welding apex area and the middle non-welding area, the motor 55 is automatically controlled to start, stop, and rotate, realizing the timing switch of the lifting posture of the guide bar 511. When the sheet reaches the front of the welding apex, the motor 55 drives the cam 551 to rotate, using the protruding part of the cam 551 to lift the guide bar 511, causing it to move upward along the guide groove 552. The upper radiator sheet is lifted and bent, increasing the local gap, which meets the requirements of the T-pipe assembly operation. When the sheet enters the middle, welding is not required. When the plate is in the contact area, the cam 551 rotates and falls back down, and the guide bar 511 descends along the guide groove 552 to the lowest limit position. At this time, at most one guide roller 512 contacts the upper radiator plate, and the guide roller 512 and the lower parallel roller remain horizontal and parallel. On the one hand, this reduces the contact area of ​​the plate under pressure and avoids indentation and deformation caused by long-term pressure. On the other hand, it restores the upper and lower plates to the standard parallel conveying posture and ensures the straightness of the plate conveying. When the plate approaches the next set of welding apexes, the cam 551 lifts the guide bar 511 again, and the entire processing process is completed in a cycle.

[0059] It should be noted that this embodiment uses a cam 551 driven in conjunction with a linear sliding lifting motion, which is a clear and crucial structural difference from the articulated swing structure of Embodiment 2. Furthermore, compared to conventional linear reciprocating drive structures such as the drive cylinder 54, electric push rod, and lead screw drive, this solution employs a continuous curve contour drive method with the cam 551, possessing unique technical advantages. Conventional linear drive mechanisms involve rigid start-stop actions of "rapid extension and rapid descent," resulting in significant speed abrupt changes that can easily cause instantaneous impact on the guide bar 511, sudden changes in plate force, and conveying vibration. In contrast, this invention uses a continuous curved surface contour drive with the cam 551, whose contour is a continuous and smooth curve structure. During the uniform rotation of the motor 55, the cam 551's pushing height changes continuously, gradually, without breaks or abrupt changes with the rotation angle, ensuring a smooth transition in the lifting speed and stroke of the guide bar 511, eliminating speed abrupt changes and rigid impacts.

[0060] This continuous curve drive characteristic allows the expansion range of the upper radiator panel to rise and fall slowly, resulting in an extremely gentle panel deformation process. This completely avoids defects such as dents, scratches, elastic fatigue, or positional displacement caused by instantaneous force changes in thin-walled radiator panels. At the same time, the guide bar 511 moves in a pure linear motion along the guide groove 552, with a regular trajectory and no angular deviation. The contact angle between the roller and the panel remains stable, and the force is vertical and uniform. Combined with the mechanical self-locking characteristic of the cam 551 mechanism, the guide bar 511 can be stably maintained at any height position without being affected by the friction of the panel conveying. The repeatability is extremely high. The overall structure is suitable for the mass standardized production conditions of radiators with high precision and high appearance requirements. It operates more smoothly, provides better panel protection, and has a much higher adjustment accuracy than traditional linear drive structures. The structure is novel and highly practical.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding clamping assembly for a tee pipe used in radiator processing, comprising a conveying module (1), a welding host (2), and a feeding clamping module (4), wherein the conveying module (1) is used for vertically aligning and conveying two layers of radiator plates, the welding host (2) is equipped with a welding actuator (3), and the feeding clamping module (4) is used for clamping the tee pipe and placing it between the upper and lower layers of radiator plates, characterized in that: It also includes a sheet guiding mechanism (5), which includes a guide inclined section (51) and a guide parallel section (52). The guide inclined section (51) and the guide parallel section (52) are both arranged along the conveying direction on one side close to the welding host (2), and the guide inclined section (51) is located above the guide parallel section (52). The guide inclined section (51) is used to guide and open the upper radiator sheet, so that the upper radiator sheet bends upward and enlarges the assembly spacing for the T-pipe to be inserted. The guide parallel section (52) is used to support the lower radiator sheet, so that the lower radiator is kept in a horizontal and parallel conveying state.

2. The tee pipe welding clamping assembly for radiator processing according to claim 1, characterized in that: The sheet guiding mechanism (5) also includes a guide mounting base (53), which is fixedly connected between the conveying module (1) and the welding host (2). The guide inclined section (51) and the guide parallel section (52) are both installed on the guide mounting base (53).

3. The tee pipe welding clamping assembly for radiator processing according to claim 2, characterized in that: The guide tilt section (51) includes a guide bar (511) and a guide roller (512). The guide bar (511) is installed on the surface of the guide mounting base (53). At least one guide roller (512) is provided and is rotatably connected to the surface of the guide bar (511). The guide parallel section (52) is equipped with a parallel roller for supporting the heating radiator plate below.

4. The tee pipe welding clamping assembly for radiator processing according to claim 3, characterized in that: The guide mounting base (53) is provided with a posture adjustment mechanism, which is used to adjust the working posture of the guide bar (511) and the guide roller (512) so that the guide bar (511) can switch between an inclined state and a horizontal state parallel to the guide parallel section (52) to change the bending amplitude of the upper radiator plate.

5. A tee pipe welding clamping assembly for radiator processing according to claim 4, characterized in that: The attitude adjustment mechanism includes a drive cylinder (54), which is mounted on the surface of the guide mounting base (53). The guide bar (511) is hinged to the guide mounting base (53) on the side close to the conveying module (1). The drive cylinder (54) is mounted on the side of the guide bar (511) away from the hinge point. When the drive cylinder (54) extends or retracts, it can push and pull the guide bar (511) to rotate around the hinge point, thereby realizing the attitude switching of the guide bar (511) between the inclined state and the horizontal state.

6. A tee pipe welding clamping assembly for radiator processing according to claim 5, characterized in that: The bottom of the guide bar (511) is provided with a groove (541), and a slider (542) is slidably connected inside the groove (541). The slider (542) is hinged to the output shaft of the drive cylinder (54).

7. A tee pipe welding clamping assembly for radiator processing according to claim 4, characterized in that: The attitude adjustment mechanism includes a motor (55), which is mounted on a guide mounting base (53). A guide groove (552) is provided on the surface of the guide mounting base (53). The guide bar (511) is slidably connected to the inside of the guide groove (552) and can move up and down along the guide groove (552) as a whole.

8. A tee pipe welding clamping assembly for radiator processing according to claim 7, characterized in that: A cam (551) is fixedly connected to the output shaft of the motor (55). The cam (551) is always in contact with the bottom of the guide bar (511). The rotation of the cam (551) pushes the guide bar (511), causing the guide bar (511) to rise and fall along the guide groove (552), thereby adjusting the working posture of the guide bar (511). When the guide bar (511) descends to the lowest limit position, at most one guide roller (512) will contact the upper radiator plate, and the guide roller (512) will be horizontally parallel to the parallel roller on the guide parallel section (52).

9. A tee pipe welding clamping assembly for radiator processing according to claim 1, characterized in that: The conveying module (1) is provided with several conveying rollers. The conveying rollers are evenly arranged along the conveying direction of the radiator sheet. The conveying rollers serve as the conveying foundation of the whole equipment and are used to support and smoothly convey the upper and lower layers of radiator sheet.

10. A tee pipe welding clamping assembly for radiator processing according to claim 1, characterized in that: The welding actuator (3) includes an upper electrode (31) and a lower electrode (32) that can move relative to each other, used to clamp the upper and lower radiator plates that have been placed into the tee pipe at the welding station and perform resistance welding.

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