Numerical control punching forming device for producing aluminum alloy composite profile

Abstract

The application provides an aluminum alloy composite profile production numerical control stamping forming device, and belongs to the technical field of profile stamping. The device comprises a roller conveying mechanism, two groups of centering guide structures and a stamping mechanism. The roller conveying mechanism comprises a main conveying roller, the two groups of centering guide structures are symmetrically arranged on the roller conveying mechanism, and the transverse spacing between the two groups of centering guide structures is adjustable; the stamping mechanism is arranged on one side of the roller conveying mechanism along the profile conveying direction; the centering guide structure comprises a mounting plate, an upper pressing roller and a centering arrangement plate, the upper pressing roller is configured to be adjustable in the vertical spacing between the upper pressing roller and the main conveying roller through lifting, the upper pressing roller is in contact with the upper surface of the profile through the lower surface of the upper pressing roller in lifting, and the centering arrangement plate is linked with the upper pressing roller and moves along the axial direction of the main conveying roller when the upper pressing roller rotates, so that the profile is forced from both sides and is in the centering position. The application specifically provides an aluminum alloy composite profile production numerical control stamping forming device which can center, correct and beat the profile in conveying.

Description

Technical Field

[0001] This invention belongs to the field of profile stamping technology, specifically referring to a CNC stamping forming device for producing aluminum alloy composite profiles. Background Technology

[0002] In the production and processing of aluminum alloy composite profiles, stamping is one of the key processes, widely used in construction, automotive, aerospace and other fields. The centering accuracy of the profile during feeding directly determines the subsequent stamping quality, dimensional consistency and production efficiency. With the increasing precision requirements of high-end manufacturing for aluminum alloy profiles, the feeding structure of existing stamping equipment has gradually revealed its core shortcomings, especially in balancing feeding centering efficiency and accuracy. Currently, most aluminum alloy composite profile stamping equipment on the market relies on manual assistance or a single conveyor roller group with side plates for positioning during the feeding process. The core problem is the lack of an active pre-adjustment structure; during feeding, the profile must be manually and precisely placed between the two side plates in the center position, and even a slight deviation will affect subsequent processing.

[0003] To prevent profiles from shifting, operators need to slow down the feeding speed and calibrate the profile position, resulting in extremely low feeding and placement efficiency, which cannot meet the needs of large-scale continuous production. Even with manual calibration of the feeding, the profile may shift in the early stage of conveying due to uneven weight distribution and slight vibration of the conveying rollers. The side plates can only play a passive limiting role and cannot correct the shifted profile, thus preventing the profile from entering the subsequent stamping process in a centered position.

[0004] The aforementioned problems not only cause quality defects such as uneven stamping force, forming size deviation, and chipping of profile edges, increasing the scrap rate and production cost of profiles, but also slow down the overall production line rhythm due to low material feeding efficiency. At the same time, the misaligned profiles may interfere with the stamping dies, shorten the die life and cause equipment failure. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the purpose of the present invention is to provide a CNC stamping forming device for producing aluminum alloy composite profiles, so as to at least partially solve the problems mentioned in the background art.

[0006] The technical solution adopted by this invention is as follows: This invention proposes a CNC stamping forming device for producing aluminum alloy composite profiles, comprising: A roller conveyor mechanism is used to convey and center profiles, including a main conveyor roller; the roller conveyor mechanism is symmetrically provided with two sets of centering guide structures, and the lateral spacing between the two sets of centering guide structures is adjustable; The stamping mechanism is located on one side of the roller conveyor along the profile conveying direction and is used to stamp the profile after centering adjustment. The centering guide structure includes a mounting plate, an upper pressure roller, and a centering plate. The upper pressure roller is configured to have an adjustable vertical distance between itself and the main conveying roller, so that the distance is adapted to the thickness of the profile. The upper pressure roller contacts the upper surface of the profile through the lifting of its lower surface and is configured to rotate under the frictional drive of the moving profile. The centering plate is linked to the upper pressure roller and moves along the axial direction of the main conveying roller when the upper pressure roller rotates, so as to apply force to the profile from both sides and keep the profile in the center position.

[0007] Furthermore, the mounting plate is equipped with a lifting mechanism for driving the upper pressure roller to rise and fall. The lifting mechanism includes a support column, a threaded rod, a top plate, and a lifting plate. The support column is vertically fixed on the upper surface of the mounting plate, and the top plate is fixedly fixed on the upper end of the support column. A lifting motor is fixedly installed on the top plate. The threaded rod is vertically rotatably mounted on the mounting plate, with its upper end fixedly connected to the output shaft of the lifting motor via a coupling, and its lower end rotatably engaged with the mounting plate via a bearing. The lifting plate is threadedly connected to the threaded rod via a threaded hole, and the lifting plate is slidably mounted on the support column.

[0008] Furthermore, the upper pressure roller is rotatably mounted on the lifting plate via bearings, and the axis of the upper pressure roller is parallel to the axis of the main conveying roller. The mounting plate and the lifting plate are equipped with a driving mechanism, which is connected to the upper pressure roller. The centering plate is linked with the upper pressure roller and is configured to reciprocate along the axis of the main conveying roller when the upper pressure roller rotates.

[0009] Furthermore, a first driving cavity is formed within the mounting plate, and a second driving cavity is formed within the vertical section of the lifting plate. A lifting groove is formed on the bottom wall of the second driving cavity. The driving mechanism includes an upper driving shaft, a lower driving shaft, a transmission shaft, a support plate, a sliding column, and a push plate. The transmission shaft is horizontally rotatable within the second driving cavity, and one end of it is connected to the rotating shaft of the upper pressure roller via a belt. The upper driving shaft is vertically rotatable on the inner top wall of the second driving cavity, and the lower driving shaft is vertically rotatable on the inner bottom wall of the first driving cavity. The lower driving shaft has a hollow cylindrical structure. An axial protrusion is formed on the outer wall of the upper driving shaft, and an axial groove adapted to the protrusion is formed on the inner wall of the lower driving shaft. The upper driving shaft can slide axially along the lower driving shaft as the lifting plate rises and falls, while simultaneously... Torque transmission is achieved through the cooperation of protrusions and grooves, enabling the upper and lower drive shafts to rotate synchronously. A driving bevel gear is fixedly mounted on the drive shaft, and a driven bevel gear is fixedly mounted on the upper end of the upper drive shaft, with the driven bevel gear meshing with the driving bevel gear. A cam is fixedly mounted on the lower end of the lower drive shaft. A support plate is horizontally fixedly mounted in the first drive cavity. A sliding column is horizontally slidably mounted on the support plate, with one end extending through the side wall of the first drive cavity to the outside of the first drive cavity and fixedly connected to the centering plate, and the other end located inside the first drive cavity. A push plate is fixedly mounted in the middle of the sliding column, and the push plate contacts the outer peripheral surface of the cam. A return spring is mounted on the sliding column, with both ends of the spring fixedly connected to the support plate and the side of the push plate away from the cam, respectively.

[0010] Furthermore, the lifting plate is an inverted L-shaped structure, with the lower end of the lifting plate located on the side of the centering plate away from the mounting plate, and the upper pressure roller is rotatably located on the side of the lifting plate away from the centering plate.

[0011] Furthermore, an auxiliary conveying roller is rotatably provided on the centering plate, and the axis of the auxiliary conveying roller is perpendicular to the axis of the main conveying roller; in addition, a first conveying side roller is rotatably provided at one end of the mounting plate near the stamping mechanism, and the axis of the first conveying side roller is perpendicular to the axis of the main conveying roller.

[0012] Furthermore, the roller conveyor mechanism is equipped with two sets of first telescopic cylinders. The two sets of first telescopic cylinders are respectively fixedly connected to the mounting plates of the two sets of central guide structures. The mounting plates are driven by the first telescopic cylinders to slide horizontally along the axial direction of the main conveyor roller, thereby realizing the rapid adjustment of the lateral spacing between the two sets of central guide structures. To ensure the stability of the adjustment, the roller conveyor mechanism is equipped with a guide assembly. The guide assembly includes a guide cylinder and a guide rod. The guide cylinder is fixedly mounted on the frame of the roller conveyor mechanism. The guide rod slides through the guide cylinder, and one end of the guide rod is fixedly connected to the mounting plate. The guide assembly restricts the movement direction of the mounting plate to avoid deviation during the adjustment process.

[0013] Furthermore, the lifting plate, upper pressure roller, centering plate, lifting mechanism and the drive mechanism that links the two are provided in at least two sets on a set of mounting plates, and are arranged at intervals along the profile conveying direction. Through the coordinated cooperation of multiple sets of centering structures, the profile is gradually adjusted to a precise center position, thereby improving the centering positioning accuracy.

[0014] Furthermore, the stamping mechanism includes an upper die, a lower die, a lifting cylinder, a stamping cylinder, and a load-bearing plate. The free end of the lifting cylinder faces upward and is fixedly connected to the lower die mounting plate. The lower die is detachably mounted on the lower die mounting plate by bolts. The load-bearing plate is located above the lower die mounting plate. The stamping cylinder is fixedly mounted on the load-bearing plate, with its free end facing downward and fixedly connected to the upper die mounting plate. The upper die is detachably mounted on the upper die mounting plate by bolts, and the upper die and lower die are arranged vertically correspondingly.

[0015] Furthermore, the stamping mechanism also includes a profile conveying mechanism, which has two sets of profile conveying mechanisms symmetrically arranged on both sides of the lower die, and the lateral spacing between the two sets of profile conveying mechanisms is adjustable; the profile conveying mechanism includes a conveying frame, on which multiple sets of second conveying side rollers are rotatably arranged, and the axis of the second conveying side rollers is perpendicular to the axis of the main conveying roller.

[0016] Furthermore, the stamping mechanism also includes two sets of second telescopic cylinders, which are respectively fixedly connected to the conveyor frames of the two profile conveying mechanisms. The conveyor frames are driven by the second telescopic cylinders to slide horizontally along the width direction of the lower die. The stamping mechanism is also provided with a guide assembly. The guide cylinder is fixedly mounted on the equipment frame, and the guide rod slides through the guide cylinder and is fixedly connected to the conveyor frame.

[0017] Furthermore, the load-bearing plate is provided with a positioning groove extending along the profile conveying direction. A positioning mechanism is provided in the positioning groove, which includes an adjusting motor, an adjusting screw, an adjusting slide rod, and an adjusting slider. The adjusting motor is fixedly mounted on one end of the load-bearing plate. The adjusting screw is horizontally rotatable in the positioning groove, with one end fixedly connected to the output shaft of the adjusting motor via a coupling, and the other end rotatably engaged with the inner wall of the positioning groove via a bearing. The adjusting slide rod is arranged parallel to the adjusting screw, with both ends fixed to the inner wall of the positioning groove. The adjusting slider is threadedly connected to the adjusting screw via a threaded hole and slidably mounted on the adjusting slide rod. A photoelectric sensor is fixedly mounted below the adjusting slider to sense the conveying position of the profile head end. Multiple sets of second conveying side rollers rotate synchronously and actively on the conveying frame via a drive assembly. The drive assembly of the main conveying roller, the drive assembly of the second conveying side rollers, and the second telescopic cylinder are all electrically connected to the photoelectric sensor.

[0018] It is understood that the device described in this invention also includes an integrated control system (not shown in the figure). This system typically includes a programmable logic controller (PLC), a human-machine interface (HMI), and corresponding motor drivers, pneumatic solenoid valves, and sensor signal receiving modules. The control system is electrically connected to the lifting motor, the first telescopic cylinder, the second telescopic cylinder, the positioning motor, the main conveyor roller drive assembly, the second conveyor side roller drive assembly, the stamping cylinder, the lifting cylinder, and the photoelectric sensor. Through a preset program, the control system coordinates the action sequence and parameters of each actuator to achieve fully automated control of the entire process from profile specification parameter input, automatic mechanism adjustment, feeding and centering, conveying and positioning to stamping.

[0019] The technical solution provided by this invention has the following beneficial effects: (1) By linking the upper pressure roller with the reciprocating centering plate, the centering plate continuously and flexibly laterally beats and corrects the profile during the conveying process of the main conveying roller, eliminating the need for manual precision centering, which greatly improves the feeding speed and efficiency and adapts to continuous production.

[0020] (2) By patting and correcting the centering plate, the profile is ensured to enter the stamping die in a precisely centered position, which effectively avoids defects such as dimensional deviation and edge chipping caused by uneven force, and reduces the scrap rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a CNC stamping forming device for producing aluminum alloy composite profiles, as proposed in an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a CNC stamping forming device for producing aluminum alloy composite profiles, as proposed in an embodiment of the present invention. Figure 2 ; Figure 3 for Figure 2 A magnified view of part A; Figure 4 This is a three-dimensional cross-sectional view of the drive mechanism of a CNC stamping forming device for producing aluminum alloy composite profiles according to an embodiment of the present invention. Figure 5 This is a top-view cross-sectional view of the first drive cavity of a CNC stamping and forming device for producing aluminum alloy composite profiles, as proposed in an embodiment of the present invention. Figure 6 This is a three-dimensional cross-sectional view of the central guiding structure of a CNC stamping forming device for producing aluminum alloy composite profiles, as proposed in an embodiment of the present invention. Figure 7 for Figure 6 A magnified view of part B; Figure 8 This is a schematic diagram of the structure of a CNC stamping forming device for producing aluminum alloy composite profiles according to an embodiment of the present invention, viewed from below. Figure 9 for Figure 8 A magnified view of part C.

[0022] Among them, 1. Main conveyor roller, 2. Centered guide structure, 3. Stamping mechanism, 4. Mounting plate, 5. Upper pressure roller, 6. Centered finishing plate, 7. Support column, 8. Threaded rod, 9. Top plate, 10. Lifting plate, 11. Lifting motor, 12. Upper drive shaft, 13. Lower drive shaft, 14. Transmission shaft, 15. Support plate, 16. Sliding column, 17. Push plate, 18. Belt, 19. Axial protrusion, 20. Axial groove, 21. Driving bevel gear, 22. Driven bevel gear, 23. Protrusion 24. Auxiliary conveyor roller, 25. First conveyor side roller, 26. First telescopic cylinder, 27. Guide assembly, 28. Upper mold, 29. Lower mold, 30. Lifting cylinder, 31. Stamping cylinder, 32. Load-bearing plate, 33. Lower mold mounting plate, 34. Upper mold mounting plate, 35. Conveyor frame, 36. Second conveyor side roller, 37. Second telescopic cylinder, 38. Positioning groove, 39. Adjustment motor, 40. Adjustment screw, 41. Adjustment slide bar, 42. Adjustment slider, 43. Photoelectric sensor.

[0023] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0024] The technical solutions in 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, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0025] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments.

[0026] See Figure 1 and Figure 2In this embodiment, the present invention provides a CNC stamping forming device for producing aluminum alloy composite profiles, including a roller conveying mechanism and a stamping mechanism 3. The roller conveying mechanism is used to realize the conveying and centering adjustment of the profiles. It includes a main conveying roller 1, which is arranged in multiple sets at intervals along the profile conveying direction. It is driven to rotate synchronously by a drive component to provide power for the profile conveying. The drive component driving multiple sets of active conveying rollers to rotate synchronously is an existing mature technology. Two sets of centering guide structures 2 are symmetrically arranged on the roller conveying mechanism. The two sets of centering guide structures 2 are located on both sides of the main conveying roller 1, and the lateral spacing between the two sets of centering guide structures 2 is adjustable. By adjusting the spacing, the two sets of centering guide structures 2 can be adapted to profiles of different widths. The stamping mechanism 3 is located on one side of the roller conveying mechanism along the profile conveying direction and is used to stamp the profiles after centering adjustment. The centering guide structure 2 includes a mounting plate 4, an upper pressure roller 5, and a centering plate 6. The upper pressure roller 5 is configured to adjust the vertical distance between itself and the main conveying roller 1 by lifting, so that the distance is adapted to the thickness of the profile. The upper pressure roller 5 contacts the upper surface of the profile by lifting its lower surface and is configured to rotate under the friction drive of the moving profile. The centering plate 6 is linked with the upper pressure roller 5 and moves along the axial direction of the main conveying roller 1 when the upper pressure roller 5 rotates, so as to apply force to the profile from both sides, gradually correct the profile's offset, and make the profile in the center position.

[0027] See Figure 3 In this embodiment, the mounting plate 4 is provided with a lifting mechanism for driving the upper pressure roller 5 to rise and fall. The lifting mechanism includes a support column 7, a threaded rod 8, a top plate 9, and a lifting plate 10. The support column 7 is vertically fixed on the upper surface of the mounting plate 4, and the top plate 9 is fixed on the upper end of the support column 7 to form a stable lifting support frame. A lifting motor 11 is fixedly installed on the top plate 9. The threaded rod 8 is vertically rotatably mounted on the mounting plate 4. Its upper end is fixedly connected to the output shaft of the lifting motor 11 through a coupling, and its lower end is rotatably engaged with the mounting plate 4 through a bearing. The lifting plate 10 is threadedly connected to the threaded rod 8 through a threaded hole, and the lifting plate 10 is slidably mounted on the support column 7, and the lifting guide is realized through the support column 7.

[0028] When the height of the upper pressure roller 5 needs to be adjusted, the lifting motor 11 is started. The lifting motor 11 drives the threaded rod 8 to rotate forward or backward. Under the threaded driving force of the threaded rod 8 and the guiding and limiting action of the support column 7, the lifting plate 10 is driven to rise and fall vertically along the support column 7, thereby driving the upper pressure roller 5 to rise and fall synchronously, so that the vertical distance between the upper pressure roller 5 and the main conveying roller 1 is precisely adapted to the thickness of the currently conveyed profile. When the profile is placed on the main conveying roller 1, the lower surface of the upper pressure roller 5 contacts the upper surface of the profile and applies a certain positive pressure. The friction generated by this positive pressure is sufficient to make the moving profile drive the upper pressure roller 5 to rotate passively, but at the same time, it should be ensured that the lateral static friction between the profile and the main conveying roller 1 and the upper pressure roller 5 is at a low level.

[0029] See Figure 3 In this embodiment, the upper pressure roller 5 is rotatably mounted on the lifting plate 10 via a bearing, and the axis of the upper pressure roller 5 is parallel to the axis of the main conveying roller 1. The mounting plate 4 and the lifting plate 10 are equipped with a driving mechanism, which is connected to the upper pressure roller 5. The centering plate 6 is linked with the upper pressure roller 5 and is configured to reciprocate along the axis of the main conveying roller 1 when the upper pressure roller 5 rotates. When the centering plate 6 moves toward the center of the main conveying roller 1, it pats the profile from both sides to gradually correct the profile's offset and make the profile in the center position.

[0030] See Figures 4-7 In this embodiment, a first driving cavity is provided in the mounting plate 4, and a second driving cavity is provided in the vertical section of the lifting plate 10. A lifting groove is provided on the bottom wall of the second driving cavity. The driving mechanism includes an upper driving shaft 12, a lower driving shaft 13, a transmission shaft 14, a support plate 15, a sliding column 16, and a push plate 17. The transmission shaft 14 is horizontally rotatably disposed in the second driving cavity, and one end of it is connected to the rotating shaft of the upper pressure roller 5 via a belt 18. When the upper pressure roller 5 rotates, it can drive the transmission shaft 14 to rotate synchronously via the belt 18. The upper driving shaft 12 is vertically rotatably disposed on the inner top wall of the second driving cavity, and the lower driving shaft 13 is vertically rotatably disposed on the inner bottom wall of the first driving cavity. The lower driving shaft 13 has a hollow cylindrical structure. An axial protrusion 19 is provided on the outer wall of the upper driving shaft 12. The diameter of the lifting groove is larger than the diameter of the upper driving shaft 12. An axial groove 20 adapted to the protrusion is provided on the inner wall of the lower driving shaft 13. The upper driving shaft 12 can move up and down with the lifting plate 10 along the... The axial lifting and sliding of the lower drive shaft 13, along with the torque transmission achieved through the cooperation of the protrusion and the groove, enables the upper drive shaft 12 and the lower drive shaft 13 to rotate synchronously. A driving bevel gear 21 is fixedly provided on the transmission shaft 14, and a driven bevel gear 22 is fixedly provided at the upper end of the upper drive shaft 12. The driven bevel gear 22 meshes with the driving bevel gear 21 to achieve the conversion of the power direction. A cam 23 is fixedly provided at the lower end of the lower drive shaft 13. A support plate 15 is horizontally fixedly provided in the first drive cavity. A sliding column 16 is horizontally slidably provided on the support plate 15. One end of the sliding column 16 extends through the side wall of the first drive cavity to the outside of the first drive cavity and is fixedly connected to the centering plate 6. The other end is located in the first drive cavity. A push plate 17 is fixedly provided in the middle of the sliding column 16, and the push plate 17 contacts the outer peripheral surface of the cam 23. A return spring is provided on the sliding column 16, and the two ends of the spring are fixedly connected to the support plate 15 and the side of the push plate 17 away from the cam 23, respectively.

[0031] In this embodiment, when the cam 23 rotates from a small radius to a large radius until it contacts the push plate 17, it gradually pushes the push plate 17 and the slide column 16 towards the center of the main conveying roller 1, at which point the spring is stretched. When it rotates from a large radius to a small radius, under the restoring force of the return spring, the push plate 17 drives the slide column 16 and the centering plate 6 back to their original positions. Through the continuous rotation of the cam 23, the reciprocating tapping action of the centering plate 6 is achieved.

[0032] See Figure 3 In this embodiment, the lifting plate 10 is an inverted L-shaped structure. The lower end of the lifting plate 10 is located on the side of the centering plate 6 away from the mounting plate 4. This structural design can effectively avoid positional interference between the lifting plate 10 and the centering plate 6 when the lifting plate 10 is lowered to a low position. The upper pressure roller 5 is rotatably located on the side of the lifting plate 10 away from the centering plate 6 to ensure that the contact position between the upper pressure roller 5 and the profile is reasonable and does not affect the movement of the centering plate 6.

[0033] See Figure 2 In this embodiment, an auxiliary conveying roller 24 is rotatably mounted on the centering plate 6. The axis of the auxiliary conveying roller 24 is perpendicular to the axis of the main conveying roller 1. When the centering plate 6 contacts the side of the profile, the auxiliary conveying roller 24 rotates synchronously with the profile, reducing the friction between the centering plate 6 and the profile, avoiding damage to the profile surface, and ensuring the smoothness of the profile conveying. In addition, a first conveying side roller 25 is rotatably mounted on the end of the mounting plate 4 near the stamping mechanism 3. The axis of the first conveying side roller 25 is perpendicular to the axis of the main conveying roller 1. It is used to perform secondary positioning on the profile after centering adjustment to ensure that the profile maintains a centered posture before entering the stamping mechanism 3.

[0034] It should be noted that, in the accompanying drawings of this embodiment, the end of the mounting plate 4 away from the stamping mechanism 3 is shown to be slidably disposed on the main conveyor roller 1. Similarly, the mounting plate 4 can also be located completely above the main conveyor roller 1, and its lower surface does not contact the main conveyor roller 1, which is also within the protection scope of this embodiment.

[0035] See Figure 1 and Figure 2 In this embodiment, the roller conveyor mechanism is provided with two sets of first telescopic cylinders 26. The two sets of first telescopic cylinders 26 are fixedly connected to the mounting plates 4 of the two sets of central guide structures 2 respectively. The mounting plates 4 are driven by the first telescopic cylinders 26 to slide horizontally along the axial direction of the main conveyor roller 1, so as to realize the rapid adjustment of the lateral distance between the two sets of central guide structures 2. In order to ensure the stability of the adjustment, the roller conveyor mechanism is provided with a guide assembly 27. The guide assembly 27 includes a guide cylinder and a guide rod. The guide cylinder is fixedly installed on the frame of the roller conveyor mechanism, and the guide rod slides through the guide cylinder. One end of the guide rod is fixedly connected to the mounting plate 4. The guide assembly 27 restricts the movement direction of the mounting plate 4 to avoid deviation during the adjustment process.

[0036] At least two sets of lifting plate 10, upper pressure roller 5, centering plate 6, lifting mechanism and driving mechanism that link the two are provided on a set of mounting plate 4, and are arranged at intervals along the profile conveying direction. Through the coordinated cooperation of multiple sets of centering structures, the profile is gradually adjusted to a precise center position, thereby improving the centering positioning accuracy.

[0037] It should be noted that the threaded rods 8 of two or more lifting mechanisms are connected by chain transmission.

[0038] Meanwhile, it is understandable that the vertical pressure of each set of upper pressure rollers 5 is kept uniform to avoid excessive local pressure causing an imbalance in the friction between the profile and the upper pressure rollers 5. Furthermore, the contact surface between the upper pressure rollers 5 and the profile is made of a low-friction coefficient wear-resistant material, which only needs to ensure the minimum friction force required to drive the upper pressure rollers 5 to rotate. The impact force of the centering plate 6 on the side of the profile is designed to be greater than the lateral static friction force between the profile and the upper pressure rollers 5 and the main conveying rollers 1, thereby smoothly driving the profile to make lateral fine adjustments.

[0039] See Figure 1 and Figure 2 In this embodiment, the stamping mechanism 3 includes an upper die 28, a lower die 29, a lifting cylinder 30, a stamping cylinder 31, and a load-bearing plate 32. The lifting cylinder 30 is fixedly mounted on the equipment frame, with its free end facing upward and fixedly connected to the lower die mounting plate 33. The lower die 29 is detachably mounted on the lower die mounting plate 33 by bolts. The load-bearing plate 32 is horizontally fixedly mounted on the equipment frame, located above the lower die mounting plate 33. The stamping cylinder 31 is fixedly mounted on the load-bearing plate 32, with its free end facing downward and fixedly connected to the upper die mounting plate 34. The upper die 28 is detachably mounted on the upper die mounting plate 34 by bolts, and the upper die 28 and the lower die 29 are arranged vertically in correspondence.

[0040] It is important to note that in this embodiment, the upper die 28 and the lower die 29 are respectively provided with positioning pins and positioning holes to ensure precise alignment of the upper die 28 and the lower die 29, thereby improving stamping accuracy. Since the height of the lower die 29 varies depending on the specifications of the profiles, the height of the lower die mounting plate 33 can be adjusted by the lifting cylinder 30 to keep the upper surface of the lower die 29 flush with the conveying surface of the roller conveyor mechanism, ensuring smooth entry of the profile into the lower die 29. Simultaneously, the adjustment by the lifting cylinder 30 ensures that the lower surface of the second conveying side roller 36 of the subsequent profile conveying mechanism is higher than and as close as possible to the upper surface of the lower die 29, thus not affecting the lifting of the lower die 29 while ensuring stable conveying of the profile after stamping.

[0041] See Figure 2In this embodiment, the stamping mechanism 3 also includes a profile conveying mechanism. Two sets of profile conveying mechanisms are symmetrically arranged on both sides of the lower die 29, and the lateral spacing between the two sets of profile conveying mechanisms is adjustable. This is used to assist the roller conveying mechanism in feeding the profile into the lower die 29 and conveying the stamped profile out. The profile conveying mechanism includes a conveying frame 35, on which multiple sets of second conveying side rollers 36 are rotatably arranged. The axis of the second conveying side rollers 36 is perpendicular to the axis of the main conveying roller 1. The second conveying side rollers 36 limit and guide the two sides of the profile to improve the conveying stability. The spacing of the second conveying side rollers 36 needs to be adapted to the spacing of the first conveying side rollers 25 to ensure that the profile is smoothly conveyed from the roller conveying mechanism to the stamping mechanism 3 without any risk of deviation.

[0042] In this embodiment, to achieve automatic unloading of the stamped profile, the lower die 29 needs to have an automatic ejection function. After stamping is completed, the lower die 29 ejects the stamped profile until it is flush with the upper surface of the lower die 29, so as to cooperate with the profile conveying mechanism for automatic unloading of the profile. The lower die 29 that achieves automatic unloading is a common existing technology in the field of profile stamping. Its core design logic has formed a standardized solution in the industry, and it can adapt to the automatic unloading requirements without additional innovative design. Specifically, the common type is the built-in ejection lower die 29. For stamped parts with complex shapes or those that are prone to sticking to the die, the lower die 29 has built-in ejection mechanisms such as push rods and ejector blocks. After stamping is completed, the workpiece is ejected from the die cavity, and then the conveying mechanism connects for unloading. This is also a mature existing technology.

[0043] See Figure 2 In this embodiment, the stamping mechanism 3 also includes two sets of second telescopic cylinders 37. The second telescopic cylinders 37 are mounted on the equipment frame. The two sets of second telescopic cylinders 37 are fixedly connected to the conveyor frames 35 of the two sets of profile conveying mechanisms. The conveyor frames 35 are driven by the second telescopic cylinders 37 to slide horizontally along the width direction of the lower die 29, thereby adjusting the lateral spacing between the two sets of profile conveying mechanisms to adapt to profiles of different widths and the corresponding upper dies 28 and lower dies 29. Similarly, the stamping mechanism 3 is also provided with a guide assembly 27. The guide cylinder is fixedly mounted on the equipment frame, and the guide rod slides through the guide cylinder and is fixedly connected to the conveyor frame 35 to ensure the stability of the conveyor frame 35 during the adjustment process.

[0044] See Figure 7 and Figure 8In this embodiment, a positioning groove 38 extending along the profile conveying direction is provided on the load-bearing plate 32. A positioning mechanism is provided in the positioning groove 38, which includes an adjusting motor 39, an adjusting screw 40, an adjusting slide rod 41, and an adjusting slider 42. The adjusting motor 39 is fixedly mounted on one end of the load-bearing plate 32. The adjusting screw 40 is horizontally rotatably mounted in the positioning groove 38. One end of the adjusting screw 40 is fixedly connected to the output shaft of the adjusting motor 39 through a coupling, and the other end is rotatably engaged with the inner wall of the positioning groove 38 through a bearing. The adjusting slide rod 41 is arranged parallel to the adjusting screw 40, and both ends are fixed to the inner wall of the positioning groove 38. The adjusting slider 42 is threadedly connected to the adjusting screw 40 through a threaded hole and is slidably mounted. The adjusting slide bar 41 is used to guide and limit the movement. A photoelectric sensor 43 is fixedly installed below the adjusting slider 42 to sense the conveying position of the profile head end, ensuring that profiles of different lengths can be conveyed to their corresponding lower mold 29. Multiple sets of second conveying side rollers 36 are driven by a drive assembly to rotate synchronously and actively on the conveying frame 35 to realize the active conveying of the profile. The drive assembly of the main conveying roller 1, the drive assembly of the second conveying side rollers 36, and the second telescopic cylinder 37 are all electrically connected to the photoelectric sensor 43. The drive assembly of the main conveying roller 1 and the drive assembly of the second conveying side rollers are existing technologies. The photoelectric sensor 43 needs to be linked with the control system.

[0045] It is understood that the device of the present invention also includes an integrated control system, which typically includes a programmable logic controller (PLC), a human-machine interface (HMI), and corresponding motor drivers, pneumatic solenoid valves, and sensor signal receiving modules. The control system is electrically connected to the lifting motor 11, the first telescopic cylinder 26, the second telescopic cylinder 37, the positioning motor 39, the main conveyor roller 1 drive assembly, the second conveyor side roller 36 drive assembly, the stamping cylinder 31, the lifting cylinder 30, and the photoelectric sensor 43. Through a preset program, the control system coordinates the action sequence and parameters of each actuator, realizing fully automated control of the entire process from profile specification parameter input, automatic mechanism adjustment, feeding and centering, conveying and positioning to stamping.

[0046] This embodiment provides a CNC stamping forming device for producing aluminum alloy composite profiles, and its specific usage method is as follows: (1) Select and install appropriate upper mold 28 and lower mold 29 according to the aluminum alloy composite profile to be processed, and make the upper surface of the lower mold 29 flush with the upper surface of the main conveying roller 1; then, according to the width and thickness specifications of the aluminum alloy composite profile to be processed, start the control system to link the first telescopic cylinder 26 and the second telescopic cylinder 37: the first telescopic cylinder 26 drives the mounting plates 4 of the two sets of central guide structures 2 to slide horizontally along the guide assembly 27, adjust the lateral distance between the two sets of central guide structures 2 so that the distance is slightly larger than the width of the profile, and reserve the movement space of the central sorting plate 6; the second telescopic cylinder 37 synchronously drives the conveying frame 35 of the two sets of profile conveying mechanisms to slide, adjust the distance between the two sets of second conveying side rollers 36 to match the distance of the central guide structure 2, and ensure smooth conveying connection.

[0047] (2) Start the lifting motor 11. The lifting motor 11 drives the threaded rod 8 to rotate. Under the guidance of the support column 7, it drives the lifting plate 10 and the upper pressure roller 5 to rise and fall vertically. Adjust the vertical distance between the upper pressure roller 5 and the main conveying roller 1 so that the vertical distance between them is adapted to the thickness of the profile. At the same time, the threaded rods 8 of multiple lifting mechanisms are driven to rotate synchronously through chain transmission to ensure that the lifting height of multiple upper pressure rollers 5 is consistent and to ensure that the profile is pressed with uniform force. According to the profile length and stamping position requirements, start the adjustment motor 39. The adjustment motor 39 drives the adjustment screw 40 to rotate and drives the adjustment slider 42 to move along the adjustment slider 41, adjusting the photoelectric sensor 43 to the sensing area corresponding to the preset stamping start position.

[0048] (3) The feeding equipment or operator roughly places the aluminum alloy composite profile on the main conveyor roller 1 of the roller conveyor mechanism. There is no need to precisely calibrate the centering position. Start the drive component of the main conveyor roller 1. The main conveyor roller 1 rotates synchronously and drives the profile to be conveyed towards the stamping mechanism 3, which greatly improves the feeding efficiency. After the profile enters between the two sets of central guide structures 2, the lower surface of the upper pressure roller 5 contacts the upper surface of the profile. The profile moves continuously under the drive of the main conveyor roller 1, and the upper pressure roller 5 rotates synchronously through friction.

[0049] (4) When the upper pressure roller 5 rotates, it drives the transmission shaft 14 to rotate synchronously through the belt 18 transmission assembly. The active bevel gear 21 on the transmission shaft 14 drives the meshing driven bevel gear 22 to rotate, which in turn drives the upper drive shaft 12 to rotate. Since the upper drive shaft 12 is inserted into the lower drive shaft 13 through the cooperation of the protrusion and the groove, the torque is synchronously transmitted to the lower drive shaft 13, causing the lower drive shaft 13 to drive the cam 23 to rotate. When the large end of the cam 23 faces the push plate 17, it pushes the push plate 17 to drive the slide column 16 to slide towards the middle of the main conveying roller 1. The centering plate 6 at the other end of the slide column 16 synchronously approaches the profile and beats the profile from both sides to correct the profile offset. When the small end of the cam 23 faces the push plate 17, the return spring pulls the push plate 17 and the slide column 16 to return to their original positions, and the centering plate 6 moves away from the profile.

[0050] (5) Multiple sets of centering and straightening plates 6 arranged along the profile conveying direction perform reciprocating tapping actions in sequence to gradually adjust the profile to a precise centering position; at the same time, the auxiliary conveying rollers 24 on the centering and straightening plates 6 rotate synchronously with the profile conveying to reduce the friction with the profile surface and avoid scratching the profile. After the profile is adjusted by multiple sets of centering guide structures 2, it is secondarily limited by the first conveying side roller 25 near the end of the mounting plate 4 close to the stamping mechanism 3, maintaining the centering posture as it is conveyed to the stamping mechanism 3.

[0051] (6) When the profile head is conveyed to the stamping mechanism 3 area, the photoelectric sensor 43 under the load-bearing plate 32 is triggered. The photoelectric sensor 43 sends a signal to the control system. The control system immediately controls the drive components of the main conveying roller 1 and the second conveying side roller 36 to stop rotating. At this time, the profile is accurately delivered to the preset stamping position of the lower die 29. Subsequently, the second telescopic cylinder 37 drives the two sets of profile conveying mechanisms to move outward synchronously a short distance along the width direction of the lower die 29, so that the second conveying side roller 36 is disengaged from the side of the profile, leaving space for the stamping process. At this time, the profile is fully supported by the mold cavity or worktable of the lower die 29.

[0052] (7) Start the stamping cylinder 31. The stamping cylinder 31 drives the upper die mounting plate 34 and the upper die 28 to descend vertically. The upper die 28 and the lower die 29 are precisely aligned to stamp the profile. During the stamping process, the lifting cylinder 30 can finely adjust the height of the lower die 29 according to the profile thickness and stamping requirements to ensure the forming quality. After the stamping is completed, the stamping cylinder 31 drives the upper die 28 to reset. The lower die 29 pushes out the bottom wall of the profile to be flush with the upper surface of the lower die 29. Then, the second telescopic cylinder 37 drives the two sets of profile conveying mechanisms to move inward and reset, so that the second conveying side roller 36 clamps the two sides of the profile again. The main conveying roller 1 and the second conveying side roller 36 are restarted to continue conveying the profile and realize continuous stamping operation.

[0053] (8) After stamping, the profile is conveyed out from the lower die 29 under the coordinated drive of the second conveying side roller 36. The second conveying side roller 36 continuously limits the two sides of the profile to prevent the profile from shifting due to structural changes after forming, and ensures smooth discharge. The subsequent profiles to be processed can repeat the above feeding, pre-adjustment, conveying, stamping and discharge steps in sequence to achieve large-scale continuous production. When changing to different specifications of profiles, repeat the previous specification adaptation adjustment steps to quickly complete the device adjustment and adapt to the production needs of multiple specifications.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0055] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A CNC stamping forming device for producing aluminum alloy composite profiles, characterized in that, include: A roller conveyor mechanism, including a main conveyor roller (1); Two sets of centrally located guide structures (2) are symmetrically arranged on the roller conveyor mechanism, and the lateral spacing between the two sets of centrally located guide structures (2) is adjustable; The stamping mechanism (3) is located on one side of the roller conveyor along the profile conveying direction and is used to stamp the profile after centering adjustment. The centering guide structure (2) includes a mounting plate (4), an upper pressure roller (5), and a centering plate (6). The upper pressure roller (5) is configured to adjust the vertical distance between itself and the main conveying roller (1) by lifting, so that the distance is adapted to the thickness of the profile. The upper pressure roller (5) contacts the upper surface of the profile by lifting its lower surface and is configured to rotate by friction driven by the moving profile. The centering plate (6) is linked with the upper pressure roller (5) and moves along the axial direction of the main conveying roller (1) when the upper pressure roller (5) rotates, so as to apply force to the profile from both sides and center the profile.

2. The CNC stamping and forming device for producing aluminum alloy composite profiles according to claim 1, characterized in that, The mounting plate (4) is provided with a lifting mechanism for driving the upper pressure roller (5) to rise and fall. The lifting mechanism includes a lifting plate (10) that can be raised and lowered vertically. The upper pressure roller (5) is rotatably mounted on the lifting plate (10) through a bearing.

3. The CNC stamping forming device for producing aluminum alloy composite profiles according to claim 2, characterized in that, The axis of the upper pressure roller (5) is parallel to the axis of the main conveying roller (1). The mounting plate (4) and the lifting plate (10) are provided with a driving mechanism. The driving mechanism is connected to the upper pressure roller (5). The centering plate (6) is linked with the upper pressure roller (5) and is configured to move back and forth along the axis of the main conveying roller (1) when the upper pressure roller (5) rotates.

4. The CNC stamping and forming device for producing aluminum alloy composite profiles according to claim 3, characterized in that, The mounting plate (4) has a first driving cavity, and the vertical section of the lifting plate (10) has a second driving cavity, and the bottom wall of the second driving cavity has a lifting groove. The drive mechanism includes an upper drive shaft (12), a lower drive shaft (13), a transmission shaft (14), a support plate (15), a sliding column (16), and a push plate (17). One end of the transmission shaft (14) is connected to the rotating shaft of the upper pressure roller (5) via a belt (18). The upper drive shaft (12) is vertically rotatably mounted on the inner top wall of the second drive cavity, and the lower drive shaft (13) is vertically rotatably mounted on the inner bottom wall of the first drive cavity. The lower drive shaft (13) is a hollow cylindrical structure. The outer wall of the upper drive shaft (12) is provided with an axial protrusion (19), and the inner wall of the lower drive shaft (13) is provided with an axial groove (20) that matches the protrusion. The upper drive shaft (12) can slide along the axial direction of the lower drive shaft (13) as the lifting plate (10) rises and falls. At the same time, the torque is transmitted through the cooperation of the protrusion and the groove, so that the upper drive shaft (12) and the lower drive shaft (13) rotate synchronously. The drive shaft (14) is fixedly provided with an active bevel gear (21), and the upper end of the upper drive shaft (12) is fixedly provided with a driven bevel gear (22), which meshes with the active bevel gear (21); the lower end of the lower drive shaft (13) is fixedly provided with a cam (23), the support plate (15) is horizontally fixedly provided in the first drive cavity, the slide column (16) is horizontally slidably provided on the support plate (15), one end of which extends through the side wall of the first drive cavity to the outside of the first drive cavity and is fixedly connected to the centering plate (6), and the other end is located in the first drive cavity; the push plate (17) is fixedly provided in the middle of the slide column (16), and the push plate (17) contacts the outer peripheral surface of the cam (23), and the slide column (16) is provided with a return spring, the two ends of which are fixedly connected to the support plate (15) and the side of the push plate (17) away from the cam (23), respectively.

5. The CNC stamping forming device for producing aluminum alloy composite profiles according to claim 4, characterized in that, The lifting plate (10) is an inverted L-shaped structure. The lower end of the lifting plate (10) is located on the side of the centering plate (6) away from the mounting plate (4). The upper pressure roller (5) is rotatably located on the side of the lifting plate (10) away from the centering plate (6).

6. The CNC stamping and forming device for producing aluminum alloy composite profiles according to claim 1, characterized in that, An auxiliary conveying roller (24) is rotatably mounted on the centering plate (6), and the axis of the auxiliary conveying roller (24) is perpendicular to the axis of the main conveying roller (1); a first conveying side roller (25) is rotatably mounted on one end of the mounting plate (4) near the stamping mechanism (3), and the axis of the first conveying side roller (25) is perpendicular to the axis of the main conveying roller (1).

7. The CNC stamping and forming device for producing aluminum alloy composite profiles according to claim 1, characterized in that, The stamping mechanism (3) includes an upper die (28), a lower die (29), a lifting cylinder (30), a stamping cylinder (31), and a load-bearing plate (32). The free end of the lifting cylinder (30) faces upward and is fixedly connected to the lower die mounting plate (33). The lower die (29) is detachably mounted on the lower die mounting plate (33) by bolts. The load-bearing plate (32) is located above the lower die mounting plate (33). The stamping cylinder (31) is fixedly mounted on the load-bearing plate (32), and its free end faces downward and is fixedly connected to the upper die mounting plate (34). The upper die (28) is detachably mounted on the upper die mounting plate (34) by bolts, and the upper die (28) and the lower die (29) are arranged vertically in correspondence.

8. The CNC stamping and forming device for producing aluminum alloy composite profiles according to claim 7, characterized in that, The stamping mechanism (3) also includes a profile conveying mechanism. Two sets of profile conveying mechanisms are symmetrically arranged on both sides of the lower die (29), and the lateral spacing between the two sets of profile conveying mechanisms is adjustable. The profile conveying mechanism includes a conveying frame (35). Multiple sets of second conveying side rollers (36) are rotatably arranged on the conveying frame (35). The axis of the second conveying side rollers (36) is perpendicular to the axis of the main conveying roller (1).

9. The CNC stamping and forming device for producing aluminum alloy composite profiles according to claim 7, characterized in that, The load-bearing plate (32) is provided with a positioning groove (38) extending along the profile conveying direction. A positioning mechanism is provided in the positioning groove (38). The positioning mechanism includes a positioning motor (39), a positioning screw (40), a positioning slide rod (41), and a positioning slider (42). The positioning motor (39) is fixedly installed at one end of the load-bearing plate (32). The positioning screw (40) is horizontally rotatably installed in the positioning groove (38). One end of the screw is fixedly connected to the output shaft of the positioning motor (39) through a coupling, and the other end is rotatably engaged with the inner wall of the positioning groove (38) through a bearing. The positioning slide rod (41) is parallel to the positioning screw. A rod (40) is set up, with both ends fixed to the inner wall of the positioning groove (38); the adjusting slider (42) is threadedly connected to the adjusting screw (40) through a threaded hole and is slidably sleeved on the adjusting slide rod (41); a photoelectric sensor (43) is fixedly provided below the adjusting slider (42) for sensing the conveying position of the profile head end; multiple sets of second conveying side rollers (36) are synchronously and actively rotated on the conveying frame (35) through a driving assembly; the driving assembly of the main conveying roller (1), the driving assembly of the second conveying side roller (36) and the second telescopic cylinder (37) are all electrically connected to the photoelectric sensor (43).

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