Beam part end flanging mechanism

Abstract

The invention belongs to the technical field of automobile part machining, and discloses a beam part end flanging mechanism which comprises a workbench, a supporting assembly, a flanging forming assembly and a driving mechanism, the supporting assembly is fixed to the workbench, the flanging forming assembly comprises a forming execution part, the forming execution part is provided with a first position and a second position, and the first position and the second position are opposite to each other. When the forming execution piece is located at the first position, the execution surface of the forming execution piece is parallel to the flanging surface of the workpiece to be flanged; when the forming execution piece is located at the second position, the execution face of the forming execution piece abuts against the flanging face of the to-be-flanged workpiece, a preset angle is formed between the execution face of the forming execution piece and the flanging face of the to-be-flanged workpiece, the driving mechanism is installed on the workbench, and the output end of the driving mechanism is in transmission connection with the forming execution piece. The driving mechanism can drive the forming execution piece to rotate so that the forming execution piece can be switched between the first position and the second position. The beam part end flanging mechanism is simple in structure, low in cost, high in universality and high in production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and in particular to an end-flanging mechanism for beam-type parts. Background Technology

[0002] As core load-bearing components in fields such as machinery manufacturing, automotive industry, and aerospace, the machining accuracy of the end structures of beam components directly determines the overall assembly accuracy and structural load-bearing stability. In practical applications, to achieve reliable connections between beam components and other parts, improve the strength of the end structures, or meet functional requirements such as sealing, end flanging has become one of the key processes in the beam component manufacturing process. As the manufacturing industry transforms towards high efficiency and low cost, the market is placing increasingly higher demands on the versatility, economy, and processing efficiency of beam component processing equipment. Especially in small and medium batch production scenarios, the limitations of traditional processing equipment are becoming increasingly apparent, necessitating the development of flanging processing mechanisms with stronger adaptability and higher resource utilization.

[0003] Currently, the flanging of beam components mainly adopts conventional stamping forming process. This process requires a large press as a power source and a dedicated integral flanging die to be developed for each specification or model of beam component. In the specific processing, the beam component to be processed is first positioned and fixed in the dedicated die, and then the press drives the punch and die of the die to cooperate to extrude and deform the end of the beam component, thereby completing the flanging forming.

[0004] However, the aforementioned conventional stamping forming process has several significant drawbacks in practical applications: First, the mold investment cost is extremely high. Due to the diverse specifications and models of beam-type parts, each part requires a separate design and manufacturing of a formal mold. This not only results in a long mold development cycle but also in substantial upfront investment in equipment and molds, making it particularly unsuitable for small-batch production or trial production during the new product development stage. Second, resource waste is severe. The forming force requirement for the end flanging process of beam-type parts is relatively small, and the deformation process is relatively simple. However, the power output of large presses far exceeds the actual processing requirements, leading to excessive energy consumption. Furthermore, the versatility of dedicated molds is poor; once a product is iterated or production ceases, the molds face scrapping, resulting in a serious waste of materials and manufacturing costs. Finally, production flexibility is poor. When changing the processing of beam-type parts of different specifications, the entire set of molds must be disassembled, installed, and debugged, which is time-consuming and labor-intensive, significantly reducing production efficiency and making it difficult to adapt to the multi-variety, small-batch production rhythm of modern manufacturing. Summary of the Invention

[0005] The purpose of this invention is to provide an end-flanging mechanism for beam-type components, which has a simple structure, low cost, strong versatility, and high production efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution: A flanged end mechanism for beam-type components is provided, comprising: The worktable and support assembly are fixed to the worktable and are used to support the workpiece to be flanged. The flanging forming assembly includes a forming actuator with an actuating surface. The forming actuator is rotatably mounted on a worktable and has a first position and a second position. When the forming actuator is in the first position, the actuating surface of the forming actuator is parallel to the flanging surface of the workpiece to be flanged. When the forming actuator is in the second position, the actuating surface of the forming actuator abuts against the flanging surface of the workpiece to be flanged and forms a preset angle with the flanging surface of the workpiece to be flanged. The drive mechanism is mounted on the worktable. The output end of the drive mechanism is connected to the forming actuator through a transmission assembly. The drive mechanism can drive the forming actuator to rotate so that the forming actuator can switch between a first position and a second position.

[0007] As one possible implementation of the end-flanging mechanism for the aforementioned beam-type component, two forming actuators are provided. The transmission assembly includes a gear structure and a rack structure. Two gear structures are provided, symmetrically arranged on both sides of the rack structure and corresponding one-to-one with the two forming actuators. Each gear structure includes a gear and a rotating shaft. The rotating shaft is rotatably connected to the worktable. One end of the rotating shaft is coaxially and fixedly connected to the gear, and the other end of the rotating shaft is fixedly connected to the forming actuator. The output end of the drive mechanism is fixedly connected to the rack structure. The drive mechanism can drive the rack structure to reciprocate linearly along the first horizontal direction.

[0008] As one possible implementation scheme for the end flange mechanism of the aforementioned beam-type components, the rack structure is a double-sided rack with teeth on both sides, and two gears mesh with the teeth on both sides of the double-sided rack respectively.

[0009] As one possible implementation of the beam end flange mechanism, the beam end flange mechanism also includes a bottom support plate, which is fixedly connected to the worktable and located below the rack structure and gear. The rotating shaft is rotatably connected to the bottom support plate.

[0010] As one possible implementation of the end-flanging mechanism for the aforementioned beam-type components, the forming actuator includes a mounting base and a forming insert fixed to the mounting base. The mounting base is rotatably mounted on the worktable, and the rotating shaft is fixedly connected to the mounting base. The actuating surface of the forming insert can abut against the flanging surface of the workpiece to be flanged.

[0011] As one possible implementation of the beam end flange mechanism, the beam end flange mechanism further includes a fixed seat, which is fixedly connected to the workbench. The fixed seat is provided with a mounting groove, and the mounting seat is rotatably embedded in the mounting groove of the fixed seat.

[0012] As one possible implementation of the end-flanging mechanism for the aforementioned beam-type components, the support assembly includes a punch and a support block. Both the punch and the support block are fixed to the worktable and distributed along the extension direction of the workpiece to be flanged. The contour of the punch is adapted to the inner shape of the workpiece to be flanged, and the punch and the support block are used to support the workpiece to be flanged.

[0013] As one possible implementation of the beam-type component end flanging mechanism, the beam-type component end flanging mechanism further includes a pressure assembly. The pressure assembly includes a pressure drive, a connecting plate, and a pressure block. The pressure drive is fixed to the worktable, and the output end of the pressure drive is fixedly connected to the connecting plate. The connecting plate is fixedly connected to the pressure block, and the pressure block is located above the punch. The pressure drive can drive the connecting plate to rise and fall vertically so that the workpiece to be flanged can be clamped between the punch and the pressure block.

[0014] As one possible implementation of the end-flanging mechanism for the aforementioned beam-type components, two pressing drive components are provided. The two pressing drive components are distributed at intervals along the length direction of the connecting plate and are fixedly connected to both ends of the connecting plate. The workpiece to be flanged is placed between the two pressing drive components.

[0015] As one possible implementation of the end flange mechanism for the aforementioned beam-type components, the pressing assembly also includes a guide rod that extends vertically, with one end of the guide rod fixedly connected to the connecting plate and the other end of the guide rod slidingly engaged with the worktable.

[0016] The beneficial effects of this invention are: This invention provides a flanging mechanism for the end of a beam-like component. In the initial state, the forming actuator is held in a first position. When flanging is required, the operator first places the workpiece on a support assembly fixed to the worktable, ensuring that the flanging surface of the workpiece precisely aligns with the execution surface of the forming actuator. Then, the drive mechanism is activated, outputting power that is transmitted to the forming actuator via a transmission assembly. Under the power transmission of the transmission assembly, the forming actuator begins to rotate, switching from the first position to a second position. During this process, the execution surface of the forming actuator abuts against the flanging surface of the workpiece and drives its movement. Under the pushing and squeezing action of the execution surface, the flanging surface of the workpiece undergoes plastic deformation until it reaches the second position, where the execution surface and the flanging surface of the workpiece form a preset flanging angle, ultimately forming a flanging structure that meets the process requirements, thus completing the flanging operation.

[0017] After the flanging process is completed, the drive mechanism outputs power in the opposite direction, driving the forming actuator to rotate in the opposite direction through the transmission assembly, resetting it from the second position to the initial first position. At this point, the actuating surface of the forming actuator separates from the flanging surface of the workpiece, and the operator can directly remove the processed workpiece from the support assembly, completing a single flanging cycle. If continuous processing is required, simply repeat the above steps of placing the workpiece back to its reset position.

[0018] Compared to traditional stamping processes that require the development of dedicated molds for each workpiece, this flanging mechanism can achieve flanging of beam-like parts of different specifications and models by adjusting and replacing suitable support components and forming actuators. This eliminates the need to develop a complete set of dedicated molds for a single workpiece, significantly shortening the new product development and trial production cycle and reducing upfront investment in mold design and manufacturing. It is particularly suitable for small-batch production and multi-variety workpiece processing scenarios. Furthermore, because the forming force required for flanging is relatively small and the deformation process is simple, the drive mechanism of this flanging mechanism can be selected and configured according to the actual requirements of the flanging forming force, eliminating the need for large presses and reducing energy consumption from the source.

[0019] Traditional stamping processes require the complete disassembly, installation, and debugging of the entire set of molds when changing workpieces, which is time-consuming and labor-intensive. This flanging mechanism, however, only requires simple adjustments to the positioning parameters of the support components or quick replacement of the appropriate forming actuator when processing workpieces of different specifications. It eliminates the need for complex mold disassembly and debugging, significantly shortening changeover time, improving work efficiency, and flexibly adapting to the multi-variety, small-batch production rhythm of modern manufacturing.

[0020] This flanging mechanism utilizes a rotating forming design for the forming actuator, resulting in smoother contact and force application between the actuator surface and the workpiece flanging surface. This avoids the workpiece deformation problem caused by excessive impact force during the engagement of the punch and die in traditional stamping processes. Simultaneously, the precise positioning of the workpiece by the support assembly and the accurate switching of the forming actuator between the first and second positions ensure the consistency of the flanging angle and dimensions for each batch of workpieces, significantly improving product quality stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the end flange mechanism for beam-type components provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the end flange mechanism for beam-type components provided in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the changes in the workpiece before and after flanging, provided by an embodiment of the present invention.

[0022] In the picture: 100. Workpiece to be flanged; 101. First flanged surface; 102. Second flanged surface; 201. Fixed base; 202. Mounting base; 203. Forming insert; 204. Connecting plate; 205. Guide rod; 206. Material pressing drive component; 207. Rack and pinion structure; 208. Gear structure; 209. Base plate; 210. Drive mechanism; 301. Workbench; 302. Pressure block; 303. Punch; 304. Support block. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

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

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0027] like Figure 1-3As shown, an embodiment of the present invention provides a beam-type component end-flanging mechanism, including a worktable 301, a support assembly, a flanging forming assembly, and a drive mechanism 210. The support assembly is fixed to the worktable 301 and is used to support the workpiece 100 to be flanged. The flanging forming assembly includes a forming actuator with an execution surface. The forming actuator is rotatably mounted on the worktable 301 and has a first position and a second position. When the forming actuator is in the first position, the execution surface of the forming actuator is parallel to the flanging surface of the workpiece 100 to be flanged. When the forming actuator is in the second position, the execution surface of the forming actuator abuts against the flanging surface of the workpiece 100 to be flanged and forms a preset angle with the flanging surface of the workpiece 100 to be flanged. The drive mechanism 210 is mounted on the worktable 301. The output end of the drive mechanism 210 is connected to the forming actuator through a transmission assembly. The drive mechanism 210 can drive the forming actuator to rotate so that the forming actuator switches between the first position and the second position.

[0028] Initially, the forming actuator is held in the first position. When the workpiece 100 to be flanged needs to be flanged, the operator first places the workpiece 100 on the support assembly fixed to the worktable 301, ensuring that the flanging surface of the workpiece 100 is precisely aligned with the execution surface of the forming actuator. Then, the drive mechanism 210 is activated, and the drive mechanism 210 outputs power, which is transmitted to the forming actuator through the transmission assembly. Under the power transmission of the transmission assembly, the forming actuator begins to rotate, switching from the first position to the second position. During this process, the execution surface of the forming actuator abuts against the flanging surface of the workpiece 100 to be flanged and drives it to move. Under the pushing and squeezing action of the execution surface, the flanging surface of the workpiece 100 to be flanged undergoes plastic deformation until it reaches the second position, where the execution surface and the flanging surface of the workpiece 100 to be flanged form a preset flanging angle, ultimately forming a flanging structure that meets the process requirements, and the flanging work is completed.

[0029] After the flanging process is completed, the drive mechanism 210 outputs power in the opposite direction, driving the forming actuator to rotate in the opposite direction through the transmission assembly, resetting it from the second position to the initial first position. At this point, the execution surface of the forming actuator separates from the flanging surface of the workpiece, and the operator can directly remove the processed workpiece from the support assembly, completing a single flanging cycle. If continuous processing is required, the above steps of placing the workpiece to the reset position can be repeated.

[0030] Compared to traditional stamping processes that require the development of dedicated molds for each workpiece, this flanging mechanism can achieve flanging processing of beam-like parts of different specifications and models by adjusting and replacing suitable support components and forming actuators. This eliminates the need to develop a complete set of dedicated molds for a single workpiece, significantly shortening the new product development and trial production cycle and reducing upfront investment in mold design and manufacturing. It is particularly suitable for small-batch production and multi-variety workpiece processing scenarios. Furthermore, because the forming force required for flanging is relatively small and the deformation process is simple, the drive mechanism 210 of this flanging mechanism can be selected and configured according to the actual requirements of the flanging forming force, eliminating the need for large presses and reducing energy consumption from the source.

[0031] Traditional stamping processes require the complete disassembly, installation, and debugging of the entire set of molds when changing workpieces, which is time-consuming and labor-intensive. This flanging mechanism, however, only requires simple adjustments to the positioning parameters of the support components or quick replacement of the appropriate forming actuator when processing workpieces of different specifications. It eliminates the need for complex mold disassembly and debugging, significantly shortening changeover time, improving work efficiency, and flexibly adapting to the multi-variety, small-batch production rhythm of modern manufacturing.

[0032] This flanging mechanism utilizes a rotating forming design for the forming actuator, resulting in smoother contact and force application between the actuator surface and the workpiece flanging surface. This avoids the workpiece deformation problem caused by excessive impact force during the engagement of the punch and die in traditional stamping processes. Simultaneously, the precise positioning of the workpiece by the support assembly and the accurate switching of the forming actuator between the first and second positions ensure the consistency of the flanging angle and dimensions for each batch of workpieces, significantly improving product quality stability.

[0033] like Figure 3 As shown, for ease of understanding, the flanged surface before flanging is defined as the first flanged surface 101, and the flanged surface after flanging is defined as the second flanged surface 102. The first flanged surface 101 is parallel to the side wall of the workpiece, and the second flanged surface 102 forms a certain angle with the side wall of the workpiece, with the preset angle between 0-360°.

[0034] Furthermore, two forming actuators are provided. The transmission assembly includes a gear structure 208 and a rack structure 207. Two gear structures 208 are provided, symmetrically arranged on both sides of the rack structure 207 and corresponding one-to-one with the two forming actuators. Each gear structure 208 includes a gear and a rotating shaft. The rotating shaft is rotatably connected to the worktable 301. One end of the rotating shaft is coaxially and fixedly connected to the gear, and the other end of the rotating shaft is fixedly connected to the forming actuator. The output end of the drive mechanism 210 is fixedly connected to the rack structure 207. The drive mechanism 210 can drive the rack structure 207 to reciprocate linearly along the first horizontal direction. Specifically, the drive mechanism 210 is a telescopic cylinder, and the output end of the telescopic cylinder is fixedly connected to the rack structure 207. The rack structure 207 is a double-sided rack, with teeth on both sides. Two gears mesh with the teeth on both sides of the double-sided rack.

[0035] Specifically, the drive mechanism 210 is a telescopic cylinder, the output end of which is fixedly connected to the rack and pinion structure 207. The telescopic cylinder outputs linear motion, which can directly drive the double-sided rack to move along the first horizontal direction. The rack directly drives the gear to rotate through tooth meshing, and then drives the forming actuator to rotate through the rotating shaft. The entire transmission process only involves one conversion between "linear motion and rotational motion", without any redundant intermediate transmission links, and the power transmission efficiency is increased to over 90%, far exceeding that of traditional multi-stage transmission mechanisms. At the same time, the simplified transmission path significantly reduces energy loss. Combined with the low energy consumption characteristics of the telescopic cylinder itself, the overall energy consumption of the equipment is reduced by 30%-40% compared to traditional equipment. In addition, the forming force requirement for the end flanging process of beam-type parts is relatively small, and the output force of the telescopic cylinder can be precisely selected according to the actual processing requirements, avoiding energy waste caused by the power redundancy of traditional large presses. At the same time, the cylinder drive has a fast response speed, and combined with the rigidity characteristics of rack and pinion transmission, it can realize rapid and precise switching of the forming actuator between the first and second positions.

[0036] Specifically, the rack structure 207 is a double-sided rack, with teeth on both sides. Two gears mesh with the teeth on both sides of the rack. By setting two forming actuators, both sides of the workpiece 100 to be flanged can be flanged simultaneously. Combined with the symmetrical transmission design of the double gears and double-sided rack, the flanging of both sides of the workpiece can be completed in one go. Compared with the traditional single-sided sequential processing mode, the process of workpiece flipping and repositioning is eliminated, improving processing efficiency by more than 50%, which is especially suitable for batch processing of symmetrical beam parts.

[0037] The system employs a double-sided rack and pinion mechanism with symmetrically arranged gears 208 on both sides. When the telescopic cylinder drives the rack to move linearly along the first horizontal direction, the teeth on both sides of the rack can simultaneously mesh with two gears, ensuring that the two gears achieve identical rotational speeds and directions. Since the gears are connected one-to-one with the forming actuators via rotating shafts, the two forming actuators can rotate in absolute synchronization, ensuring that the forming angle and deformation degree of the flanged surfaces on both sides of the workpiece are completely consistent. This effectively solves the quality problems such as asymmetry in double-sided flanging and workpiece warping that are common in traditional single-sided processing, significantly improving the product qualification rate. This flanging mechanism requires only one telescopic cylinder to achieve the linkage of the forming actuators on both sides through the meshing of the rack and pinions. Compared to the traditional double-sided processing design that requires two independent drive systems, this setup reduces the number of power sources by 50% and eliminates the need for complex electrical control modules that require multi-power source coordination, thus reducing equipment manufacturing costs and simplifying subsequent maintenance procedures.

[0038] Furthermore, the end flange mechanism for beam-type components also includes a bottom support plate 209, which is fixedly connected to the worktable 301. The bottom support plate 209 is located below the rack structure 207 and the gear, and the rotating shaft is rotatably connected to the bottom support plate 209.

[0039] The base plate 209 provides downward support for the rotating shaft, enabling the rotating shaft to achieve two-point positioning support between the worktable 301 and the base plate 209. This strengthens the rigidity of the rotating shaft support, effectively avoids the deformation problem of the rotating shaft during transmission, and improves transmission accuracy and stability.

[0040] Furthermore, the forming actuator includes a mounting base 202 and a forming insert 203 fixed to the mounting base 202. The mounting base 202 is rotatably mounted on the worktable 301, and the rotating shaft is fixedly connected to the mounting base 202. The actuating surface of the forming insert 203 can abut against the flanged surface of the workpiece 100 to be flanged.

[0041] The flanging angle and contour dimensions of beam-type components vary depending on the product model, and the actuating surface of the forming insert 203 directly determines the flanging forming effect. This design uses the forming insert 203 as a replaceable functional module, fixed to the mounting base 202 via standardized connections such as bolts and locating pins. Replacement only requires disassembling the forming insert 203, without needing to adjust the mounting base 202, rotating shaft, or other core transmission components. For multi-variety processing needs, only the forming insert 203 needs to be designed and manufactured according to the flanging requirements of different workpieces; the mounting base 202 is universal. Compared to traditional integral forming actuators, the forming insert 203 is smaller in size and consumes less material, shortening the time for replacing different specifications of forming inserts 203 and improving changeover efficiency. Especially in small-batch, multi-variety production scenarios, it can significantly reduce the investment cost of dedicated tooling.

[0042] Furthermore, the end flange mechanism for beam-type components also includes a fixed seat 201, which is fixedly connected to the workbench 301. The fixed seat 201 is provided with a mounting groove, and the mounting seat 202 is rotatably embedded in the mounting groove of the fixed seat 201.

[0043] The fixed base 201 is fixed to the worktable 301. The inner contour of its mounting groove is precisely matched with the outer contour of the mounting base 202. The mounting groove of the fixed base 201 can be used as the assembly datum of the mounting base 202. During installation, the rotation center can be quickly determined simply by inserting the mounting base 202 into the mounting groove, without the need to repeatedly calibrate the coaxiality of the rotating shaft and the mounting base 202. When the mounting base 202 is rotatably fitted into the mounting groove, the mounting groove can limit the radial displacement of the mounting base 202, preventing the radial runout caused by the rotating shaft driving the mounting base 202 to cause the execution surface of the forming insert 203 to shift, thus ensuring the stability of the rotation trajectory of the forming insert 203.

[0044] Furthermore, the support assembly includes a punch 303 and a support block 304. Both the punch 303 and the support block 304 are fixed to the worktable 301 and distributed along the extension direction of the workpiece 100 to be flanged. The contour of the punch 303 is adapted to the inner shape of the workpiece 100 to be flanged. The punch 303 and the support block 304 are used to support the workpiece 100 to be flanged. Specifically, the punch 303 is fixed to the fixing seat 201.

[0045] The contour of the punch 303 is adapted to the inner shape of the workpiece 100 to be flanged. When the workpiece is placed on the punch 303, the punch 303 can rigidly position the workpiece from inside, limiting the radial and circumferential displacement of the workpiece. Compared with the traditional external clamping positioning, this internal positioning method improves the positioning accuracy by more than 40%, and can effectively avoid the problem of asymmetry in flanged on both sides caused by workpiece displacement during the flanged process.

[0046] The punch 303 and the support block 304 are distributed along the extension direction of the workpiece 100 to be flanged, forming a multi-point support structure. The punch 303 can support the middle or key stress-bearing parts of the workpiece, and the support block 304 is set on the bottom surface of the end of the workpiece. The two work together to effectively suppress the warping or deformation of the workpiece caused by the force during flanged operation, and significantly improve the flatness of the flanged surface.

[0047] For beam components of different lengths and specifications, stable support can be achieved by adjusting the installation position of the support block 304 or replacing the punch 303 with a suitable internal shape, without the need to redesign the entire support assembly. For example, by replacing the punch 303 with different cross-sectional dimensions, it can be adapted to the processing of beam components of different widths, greatly improving the versatility of the support assembly.

[0048] Furthermore, the end-flanging mechanism for beam-type components also includes a pressure assembly. The pressure assembly includes a pressure drive 206, a connecting plate 204, and a pressure block 302. The pressure drive 206 is fixed to the worktable 301, and its output end is fixedly connected to the connecting plate 204. The connecting plate 204 is fixedly connected to the pressure block 302, which is located above the punch 303. The pressure drive 206 can drive the connecting plate 204 to move vertically up and down so that the workpiece 100 to be flanged can be clamped between the punch 303 and the pressure block 302. Specifically, the pressure drive 206 is a telescopic cylinder.

[0049] The pressure block 302 is located above the punch 303. The pressure drive 206 drives the connecting plate 204 to raise and lower the pressure block 302, clamping the workpiece 100 to be flanged between the punch 303 and the pressure block 302. This "bottom support and top pressure" bidirectional positioning method, compared to the unidirectional support of the support components alone, can completely limit the axial displacement of the workpiece, avoiding the flange angle deviation caused by the workpiece moving upward under force during the flange process, and improving the flange angle control accuracy. The pressure drive 206 can be adapted to beam-like parts of different thicknesses by adjusting the output stroke, and can achieve stable clamping of workpieces of different thicknesses without replacing the pressure block 302. If the cross-sectional shape of the workpiece changes, only the pressure block 302, punch 303, and support block 304 need to be replaced, and the remaining components can be used interchangeably.

[0050] Optionally, the bottom surface of the pressure block 302 is provided with an elastic buffer layer. Specifically, the elastic buffer layer can be made of polymer materials with high elasticity and high wear resistance, such as polyurethane, nitrile rubber, or silicone.

[0051] The elastic buffer layer can absorb the impact force during the pressing process through its own elastic deformation, avoiding rigid contact between the pressing block 302 and the workpiece surface, and effectively preventing defects such as indentations and scratches on the surface of workpieces made of easily scratched materials such as aluminum alloy and stainless steel.

[0052] Optionally, the bottom of the elastic buffer layer is provided with anti-slip texture to increase friction and improve fixation stability.

[0053] Preferably, two pressing drive components 206 are provided, which are distributed at intervals along the length direction of the connecting plate 204 and fixedly connected to both ends of the connecting plate 204. The workpiece 100 to be flanged is disposed between the two pressing drive components 206. Specifically, the length direction of the connecting plate 204 is consistent with the width direction of the workpiece 100 to be flanged.

[0054] Two pressure drive components 206 are symmetrically distributed at both ends of the connecting plate 204. When driven, power can be output synchronously from both sides of the connecting plate 204, so that the driving force on the connecting plate 204 is symmetrically distributed. This avoids the force deviation of the connecting plate 204 caused by single-point drive or asymmetrical drive, thereby making the pressure distribution on the bottom surface of the pressure block 302 uniform, ensuring that the entire pressure area of ​​the workpiece is subjected to consistent force, and effectively preventing workpiece deformation or loosening caused by uneven local force.

[0055] Furthermore, the pressing assembly also includes a guide rod 205, which extends vertically. One end of the guide rod 205 is fixedly connected to the connecting plate 204, and the other end of the guide rod 205 is slidably engaged with the worktable 301.

[0056] The guide rod 205 slides vertically with the worktable 301, which can rigidly guide the lifting and lowering movement of the connecting plate 204 and the pressure block 302, strictly limiting their horizontal deviation, ensuring that the pressure block 302 is accurately aligned with the workpiece above the punch 303, avoiding excessive pressure force on one side or workpiece deviation caused by the tilt of the pressure block 302, and ensuring the verticality of the pressure.

[0057] The specific working process of the end-flanging mechanism for beam-type components provided in this embodiment is as follows: Before the flanging begins, the forming insert 203 is rotated back to its initial position by the shrinking of the drive mechanism 210, and the pressure block 302 is raised by the extension of the pressure drive 206, so that there is enough space between the punch 303 and the pressure block 302 to accommodate the workpiece 100 to be flanged and the first flanging surface 101 of the workpiece before flanging.

[0058] Then, the workpiece 100 to be flanged is placed between the punch 303 and the pressure block 302, with the other end of the workpiece supported by the support block 304. Afterwards, the pressure block 302 closes with the punch 303 under the contraction of the pressure drive 206, fixing the workpiece in place. At this time, the drive mechanism 210 starts working. During its extension, the drive mechanism 210 drives the rack structure 207 forward, which in turn drives the gear to rotate. The gear, through a rotating shaft, drives the mounting base 202 and the forming insert 203 to rotate. The forming insert 203 causes the first flanging surface 101 of the workpiece before flanging to rotate, resulting in the second flanging surface 102 of the workpiece after flanging.

[0059] After the flanging is completed, the drive mechanism 210 retracts, driving the mounting base 202 and the forming insert 203 to rotate in the opposite direction back to their initial positions via the rack structure 207 and gears. The pressure block 302 separates from the punch 303 under the extension of the pressure drive 206, and the workpiece is removed, completing the entire flanging process.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A beam end flanging mechanism characterized by comprising: The application relates to a beam end flanging mechanism. The beam end flanging mechanism comprises a workbench (301) and a support assembly fixed to the workbench (301) for supporting a workpiece (100) to be flanged; a flanging forming assembly comprising a forming implement with an execution surface, the forming implement being rotatably installed on the workbench (301) and having a first position and a second position, the execution surface of the forming implement being parallel to a flanging surface of the workpiece (100) to be flanged when the forming implement is in the first position, and the execution surface of the forming implement abutting against the flanging surface of the workpiece (100) to be flanged and being at a preset angle with the flanging surface of the workpiece (100) to be flanged when the forming implement is in the second position; and a driving mechanism (210) installed on the workbench (301), an output end of the driving mechanism (210) being in transmission connection with the forming implement through a transmission assembly, the driving mechanism (210) being capable of driving the forming implement to rotate so as to switch the forming implement between the first position and the second position. The forming implement is provided with two transmission assemblies, the transmission assembly comprising a gear structure (208) and a rack structure (207), the gear structure (208) being provided with two, the two gear structures (208) being symmetrically arranged on two sides of the rack structure (207) and corresponding to the two forming implements respectively, the gear structure (208) comprising a gear and a rotating shaft, the rotating shaft being rotatably connected to the workbench (301), one end of the rotating shaft being coaxially arranged with the gear and fixedly connected, the other end of the rotating shaft being fixedly connected with the forming implement, the output end of the driving mechanism (210) being fixedly connected with the rack structure (207), the driving mechanism (210) being capable of driving the rack structure (207) to linearly reciprocate along a first horizontal direction. The rack structure (207) is a double-sided rack, both sides of the double-sided rack being provided with teeth, and the two gears are respectively in meshing connection with the teeth on the two sides of the double-sided rack.

2. A beam end flanging mechanism according to claim 1, wherein The beam end flanging mechanism further comprises a bottom supporting plate (209) fixedly connected to the workbench (301), the bottom supporting plate (209) being located below the rack structure (207) and the gear, and the rotating shaft being rotatably connected to the bottom supporting plate (209).

3. A beam end flanging mechanism according to claim 2, wherein The forming implement comprises a mounting seat (202) and a forming insert (203) fixed to the mounting seat (202), the mounting seat (202) being rotatably installed on the workbench (301), the rotating shaft being fixedly connected with the mounting seat (202), and the execution surface of the forming insert (203) being capable of abutting against the flanging surface of the workpiece (100) to be flanged.

4. A beam end flanging mechanism according to claim 2, wherein ​ 5. A beam end flanging mechanism according to claim 2, wherein ​ 6. A beam end flanging mechanism according to claim 5, wherein The beam end flanging mechanism further comprises a fixing base (201) fixedly connected to the workbench (301), wherein the fixing base (201) is provided with a mounting groove, and the mounting base (202) is rotatably embedded in the mounting groove of the fixing base (201).

7. A beam end flanging mechanism according to any one of claims 1 to 6, wherein The support assembly comprises a punch (303) and a support block (304), wherein the punch (303) and the support block (304) are both fixed to the workbench (301) and are distributed along the extension direction of the workpiece (100) to be flanged, the profile of the punch (303) is matched with the inner shape of the workpiece (100) to be flanged, and the punch (303) and the support block (304) are used for supporting the workpiece (100) to be flanged.

8. A beam end flanging mechanism according to claim 7, wherein The beam end flanging mechanism further comprises a pressing assembly, wherein the pressing assembly comprises a pressing driving element (206), a connecting plate (204) and a pressing block (302), the pressing driving element (206) is fixed to the workbench (301), the output end of the pressing driving element (206) is fixedly connected with the connecting plate (204), the connecting plate (204) is fixedly connected with the pressing block (302), the pressing block (302) is located above the punch (303), and the pressing driving element (206) can drive the connecting plate (204) to ascend and descend in the vertical direction so that the workpiece (100) to be flanged can be clamped between the punch (303) and the pressing block (302).

9. A beam end flanging mechanism according to claim 8, wherein The pressing driving element (206) is provided with two, the two pressing driving elements (206) are distributed in the length direction of the connecting plate (204) and are fixedly connected with both ends of the connecting plate (204), and the workpiece (100) to be flanged is arranged between the two pressing driving elements (206).

10. A beam end flanging mechanism according to claim 8, wherein The pressing assembly further comprises a guide rod (205) extending in the vertical direction, one end of the guide rod (205) is fixedly connected with the connecting plate (204), and the other end of the guide rod (205) is slidingly matched with the workbench (301).

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