Profile bending processing equipment and bending processing method thereof

Abstract

The present invention relates to the technical field of profile processing, and provides a profile bending processing equipment and a bending processing method thereof, the equipment comprising a working platform provided with a mold core; a bending mechanism for clamping and stretching both ends of the profile, and bending the profile until it is against the mold core; and a rotary pressing mechanism for preventing deformation or wrinkling at the small radius forming portion of the profile; the bending mechanism is located on both sides of the working platform; the working platform comprises a platform frame and a positioning mechanism for positioning the profile fitted to the mold core; the mold core is arranged on the platform frame, and the outer side surface of the mold core serves as a positioning station for the profile, and the positioning mechanism is arranged on the platform frame and positions the profile at the positioning station; the rotary pressing mechanism is arranged on the platform frame and is located on the side of the positioning mechanism, and the rotary pressing mechanism can be rotatably arranged. The present invention can solve the problem of thinning the outer arc of the profile when performing small radius bending on the profile, and realize high-precision and high-reliability forming of the profile with small radius bending.

Description

Technical Field

[0001] The present invention relates to the technical field of profile processing, and more particularly to a profile bending processing device and a profile bending processing method thereof. Background Art

[0002] Profile bending machine is a kind of plastic processing equipment widely used in aerospace, automobile manufacturing and other fields. It bends metal profiles into parts with specific curvature through the combined action of axial tension and bending moment.

[0003] However, when bending a profile at a small radius, the profile is subjected to a combination of axial and circumferential tensile stresses within the deformation zone. This not only significantly alters the material's flow characteristics but also reduces the profile's pressure-bearing capacity and fatigue life, rendering it unable to meet processing quality requirements. In particular, the concentrated circumferential tensile stress on the outer arc side of the profile can cause a sharp decrease in wall thickness, even leading to defects such as localized deformation or wrinkling. This severely impacts the forming accuracy, mechanical properties, and service life of the processed profile parts. This potential risk can have serious safety consequences, particularly in safety-critical fields such as aerospace and automotive.

[0004] With the increasing requirements for the accuracy, strength and reliability of bent profiles in the industrial field, and the increasingly widespread application of small-radius bent profiles in various products, it has become extremely urgent to solve the problem of excessive thinning of the outer arc wall thickness of the profile during small-radius bending by stretch bending machines. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings and deficiencies of the prior art by providing a profile bending apparatus that addresses the issue of thinning the outer arc of a profile when performing small-radius bending, thereby achieving high-precision, high-reliability small-radius bending. The present invention also provides a profile bending method that achieves small-radius bending while maintaining both quality and efficiency.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions: a profile bending processing equipment, comprising:

[0007] A working platform with a mold core is provided;

[0008] A bending mechanism used to clamp and stretch the two ends of the profile, and bend the profile until it rests against the mold core;

[0009] and a rotary clamping mechanism to prevent deformation or wrinkling at small radius forming areas of the profile;

[0010] The stretching and bending mechanisms are located on both sides of the working platform;

[0011] The working platform includes a platform frame and a positioning mechanism for positioning the profile fitted to the mold core; the mold core is arranged on the platform frame, the outer side of the mold core serves as the positioning position of the profile, and the positioning mechanism is arranged on the platform frame and positions the profile at the positioning position;

[0012] The rotary clamping mechanism is arranged on the platform frame and is located on the side of the positioning mechanism. The rotary clamping mechanism can be rotatably set to achieve synchronous rotation as the profile bends during the arc forming process of the profile along the small radius of the mold core, so as to fit the supporting profile and avoid deformation or wrinkling of the profile.

[0013] Specifically, the rotary pressing mechanism includes a rotating assembly, a pressing assembly for pressing the profile to fit the mold core, and a rotary driving component for driving the rotating assembly to rotate; the pressing assembly is arranged on the rotating assembly, and its pressing surface faces the positioning station; the rotating assembly can be rotatably arranged on the platform frame, and the rotary driving component is connected to the rotating assembly; when working, the pressing assembly presses the profile to the mold core, and the rotary driving component drives the rotating assembly to rotate so that the pressing assembly is always in contact with the supporting profile.

[0014] The rotating assembly includes a rotating base, a rotating pressing seat, a fixed shaft and a rotating sleeve; the rotating base is connected to the mold core through the fixed shaft, and the rotating pressing seat is connected to the fixed shaft through the rotating sleeve; the pressing assembly is arranged on the rotating pressing seat, and the rotating driving component is connected to the rotating pressing seat to drive the rotating pressing seat and the pressing assembly to rotate.

[0015] The profile bending processing equipment also includes a pressing mechanism for pressing and positioning the profile; the pressing mechanism is arranged on the mold core and is located between the positioning mechanism and the rotary pressing mechanism;

[0016] The crimping mechanism includes a crimping mounting seat, a crimping driving component, a hinge seat, a rotating arm and a crimping plate; the crimping mounting seat is arranged on the mold core; the crimping driving component is hinged to the crimping mounting seat; the hinge seat is connected to the rotating arm and hinged to the crimping driving component; the crimping plate is arranged on one end of the rotating arm, and the other end of the rotating arm is hinged to the crimping mounting seat; when working, the crimping driving component drives the rotating arm to rotate so that the crimping plate crimps the profile to the outside of the mold core.

[0017] The positioning mechanism includes a front pressing device and an upper pressing device; the upper pressing device is connected to the mold core and is located above the positioning station, and is used to press and position the top of the profile; the front pressing device is set on the platform frame and is located in front of the positioning station, and is used to press and position the front of the profile;

[0018] The front pressing device includes a front pressing seat, a front pressing slide, a front pressing driving component, a front pressing assembly and an adaptive pressing assembly for adjusting the pressing angle by rotating as the profile is formed; the front pressing assembly and the adaptive pressing assembly are respectively arranged on the front pressing slide; the front pressing seat is arranged on the platform frame, the front pressing slide is slidably connected to the front pressing seat, and the front pressing driving component is connected to the front pressing slide to drive the front pressing assembly and the adaptive pressing assembly on the front pressing slide to press the profile toward the positioning station.

[0019] The upper clamping device includes an intermediate upper clamping assembly located above the middle of the positioning station and a side upper clamping assembly located above the side of the positioning station; the intermediate upper clamping assembly and the side upper clamping assembly have the same structure, both including an upper pressure plate and an upper pressure plate driving component; the upper pressure plate driving component is arranged inside the mold core and connected to the upper pressure plate to drive the upper pressure plate to rise and fall.

[0020] The adaptive clamping assembly includes an adaptive clamping drive component, an adaptive clamping block, an adaptive clamping block mounting seat and a fixed shaft seat with a fixed shaft; the adaptive clamping block mounting seat is slidably connected to the front clamping slide; the fixed shaft seat is arranged on the adaptive clamping block mounting seat; the adaptive clamping block sleeve is set with the fixed shaft of the shaft seat and is rotatably connected to the fixed shaft, and a limit block for limiting the rotation angle of the adaptive clamping block is also provided on the fixed shaft; the adaptive clamping drive component is connected to the adaptive clamping block mounting seat to drive the adaptive clamping block on the adaptive clamping block mounting seat to clamp the profile to the mold core, and the adaptive clamping block rotates as the profile is formed to adjust the clamping angle.

[0021] A profile bending method, using the above-mentioned profile bending equipment, the profile bending method is as follows:

[0022] The positioning mechanism positions the loaded profile to the positioning station;

[0023] The stretching and bending mechanisms on both sides simultaneously clamp and pre-stretch the two ends of the profile, and then move the clamped profile closer to the mold core to complete the bending of the first arc of the profile;

[0024] The rotary clamping mechanism is controlled to fit the profile that is not fitted to the mold core, and the stretch-bending mechanism moves the clamped profile closer to the mold core to fit it again. During the process of the profile fitting along the arc with a small radius of the mold core, the rotary clamping mechanism is controlled to rotate synchronously with the bending of the profile, so that the rotary clamping mechanism always fits the supporting profile until the second arc of the profile is bent, and finally the stretch-bending forming of the profile is achieved;

[0025] The first arc section refers to an arc section with a relatively large bending radius in the entire mold core; the second arc section refers to an arc section with a relatively small bending radius in the entire mold core.

[0026] The positioning mechanism includes a front pressing device and an upper pressing device, the upper pressing device includes an intermediate upper pressing assembly located above the middle of the positioning station and a side upper pressing assembly located above the side of the positioning station; the profile bending processing equipment is also provided with a pressing mechanism for pressing and positioning the profile, the pressing mechanism is arranged on the mold core and is located between the front pressing device and the rotary pressing mechanism;

[0027] Before the first arc of the profile is bent, the profile is pressed and positioned by the front pressing device and the middle upper pressing assembly;

[0028] Before the second arc of the profile is bent, the profile is pressed and positioned by the pressing mechanism and the side upper pressing assembly.

[0029] The front pressing device includes a front pressing assembly and an adaptive pressing assembly, wherein the adaptive pressing assembly is provided with a rotatable adaptive pressing block;

[0030] The profile is pressed toward the positioning station by the front pressing assembly and the adaptive pressing assembly; during the pressing process, the adaptive pressing block rotates as the profile is formed to adjust the pressing angle.

[0031] The profile bending processing method also includes the step of straightening the straight section of the profile; after completing the bending of the second arc section of the profile, controlling the rotary pressing mechanism to fit the straight section of the profile, and the bending mechanism uses the rotary pressing mechanism as a support point to move in the opposite direction to achieve straightening of the straight section of the profile; the reverse direction refers to the direction opposite to the bending direction of the second arc section of the profile.

[0032] Traditional bending equipment uses a bending mechanism to bend the profile as a whole. This causes the outer arc side of the profile to be sharply thinned due to the concentration of circumferential tensile stress, and even defects such as local deformation or wrinkling may occur, especially for small radius bends. The present invention can use a bending mechanism to bend the first arc section, and then use a rotary clamping mechanism to support the second arc section of the profile. During the bending process of the bending mechanism for the second arc section, the rotary clamping mechanism of the present invention rotates synchronously with the bending of the profile, so that the rotary clamping mechanism always fits the supporting profile until the small radius bending of the profile is completed. Since the radius of the second arc section of the profile is too small, its cross-section will shrink and deform severely during bending. Therefore, a rotary clamping mechanism is required to protect the profile (to prevent cross-section deformation) and prevent wrinkling throughout the bending process of this arc section. The rotary clamping mechanism matches the shape of the outer arc surface of the profile, and moves synchronously with the bend during bending, supporting the profile so that it does not shrink, deform, or wrinkle.

[0033] On the other hand, since the straight section of the profile will also be bent to a certain degree during the bending process, after completing the bending of the second arc of the profile, the bending mechanism uses the rotary clamping mechanism as support to perform a certain degree of reverse movement (opposite to the bending direction) to straighten the straight section of the profile.

[0034] The present invention's staged bending method ensures that the profile is supported and protected before the second arc is formed, preventing wrinkles. This solves the problem of thinning the outer arc of the profile and enables high-precision, high-reliability bending of small-radius profiles. Therefore, the present invention's stretch-bending method achieves small-radius bending while maintaining high forming quality. Furthermore, the present invention can achieve both the first and second arc bends using a single device, eliminating the need for mid-process equipment replacement or repositioning, thereby significantly improving processing efficiency and accuracy.

[0035] The second arc is located to the side of the first arc. This invention uses a clamping mechanism and side upper clamping assemblies to position the two sides of the profile, and a rotating clamping mechanism to support the second arc. During the bending process of the first arc, the adaptive clamp rotates with the profile forming process. This compliant design ensures that the profile is closely aligned with the mold core, thereby improving the quality and precision of the profile forming.

[0036] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0037] 1. The profile bending equipment of the present invention can solve the problem of thinning of the outer arc of the profile when bending the profile with a small radius, and realize high-precision and high-reliability forming of the profile with a small radius.

[0038] 2. The profile bending method of the present invention can achieve small radius bending of the profile while taking into account both forming quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the profile bending processing equipment of the present invention;

[0040] Figure 2 It is a schematic diagram of the rotary pressing mechanism in the profile bending processing equipment of the present invention;

[0041] Figure 3 It is a schematic diagram of the buckling mechanism in the profile bending processing equipment of the present invention;

[0042] Figure 4 It is a schematic diagram of the front pressing device in the profile bending processing equipment of the present invention;

[0043] Figure 5 Schematic diagram of the adaptive pressing assembly in the profile bending processing equipment of the present invention;

[0044] Among them, 1 is the mold core, 2 is the profile, 3 is the bending mechanism, 4 is the rotary pressing mechanism, 4.1 is the rotating base, 4.2 is the rotating pressing seat, 4.3 is the pressing drive component, 4.4 is the guide slider, 4.5 is the close-fitting rubber plate, 4.6 is the rotating drive component, 5 is the platform frame, 6 is the pressing mechanism, 6.1 is the pressing mounting seat, 6.2 is the pressing drive component, 6.3 is the hinge seat, 6.4 is the rotating arm, 6.5 is the pressing plate, 7 is the middle upper pressing component, 7.1 is the upper pressing Plate, 8 is the upper side clamping assembly, 9 is the front clamping device, 9.1 is the front clamping seat, 9.2 is the front clamping drive component, 9.3 is the front clamping assembly, 9.4 is the connection between the front clamping drive component and the front clamping slide, 9.5 is the front clamping slide, 10 is the adaptive clamping assembly, 10.1 is the adaptive clamping drive component, 10.2 is the adaptive pressure block, 10.3 is the adaptive pressure block mounting seat, 10.4 is the fixed axis seat, 10.5 is the limit block, and 10.6 is the fixed axis. DETAILED DESCRIPTION

[0045] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0046] Example

[0047] like Figures 1 to 5 As shown, the profile bending processing equipment of the present invention includes:

[0048] A working platform is provided with a mold core 1;

[0049] A bending mechanism 3 for clamping and stretching the two ends of the profile 2, and bending the profile 2 until it abuts against the mold core 1;

[0050] and a rotary pressing mechanism 4 for preventing deformation or wrinkling at the small radius forming portion of the profile 2;

[0051] Among them, the stretching and bending mechanism 3 is located on both sides of the working platform;

[0052] The work platform includes a platform frame 5 and a positioning mechanism for positioning the profile 2 against the mold core 1. The mold core 1 is mounted on the platform frame 5, with the outer surface of the mold core 1 serving as the positioning station for the profile 2. The positioning mechanism is mounted on the platform frame 5 and positions the profile 2 at the positioning station. A rotary clamping mechanism 4 is mounted on the platform frame 5 and located to the side of the positioning mechanism. The rotary clamping mechanism 4 is rotatable, allowing it to rotate synchronously with the bending of the profile 2 during the small-radius arc forming process of the mold core 1, thereby conforming to and supporting the profile 2 to prevent deformation or wrinkling.

[0053] Specifically, the rotary pressing mechanism 4 includes a rotating assembly, a pressing assembly for pressing the profile 2 against the mold core 1, and a rotary drive component 4.6 for driving the rotating assembly to rotate. The rotating assembly includes a rotating base 4.1, a rotary pressing seat 4.2, a fixed shaft, and a rotating sleeve. The rotating base 4.1 is connected to the mold core 1 via the fixed shaft, and the rotary pressing seat 4.2 is connected to the fixed shaft via the rotating sleeve. The pressing assembly is arranged on the rotary pressing seat 4.2 and includes a pressing drive component 4.3, a guide slider 4.4, and a close-fitting rubber plate 4.5. The close-fitting rubber plate 4.5 is arranged on the guide slider 4.4, and its pressing surface faces the positioning station. The guide slider 4.4 is slidably connected to the rotary pressing seat 4.2 and is connected to the pressing drive component 4.3. The pressing drive component 4.3 drives the close-fitting rubber plate 4.5 on the guide slider 4.4 to press the profile 2. The rotary drive component 4.6 is connected to the rotary pressing seat 4.2, driving the rotary pressing seat 4.2 and the pressing assembly's contact rubber plate 4.5 to rotate. During operation, the contact rubber plate 4.5 on the guide slider 4.4 is driven by the pressing drive component 4.3 to contact the profile 2. The rotary drive component 4.6 then drives the rotary pressing seat 4.2 and the contact rubber plate 4.5 to rotate, ensuring that the contact rubber plate 4.5 is always in contact with the supporting profile 2.

[0054] The positioning mechanism of the present invention includes a front pressing device 9 and an upper pressing device, wherein the upper pressing device is connected to the mold core 1 and is located above the positioning station, and is used to press and position the top of the profile 2. The front pressing device 9 is arranged on the platform frame 5 and is located in front of the positioning station, and is used to press and position the front of the profile 2. The upper pressing device includes an intermediate upper pressing assembly 7 located above the middle of the positioning station and a side upper pressing assembly 8 located above the side of the positioning station. The intermediate upper pressing assembly 7 and the side upper pressing assembly 8 have the same structure, and both include an upper pressing plate 7.1 and an upper pressing plate driving component. The upper pressing plate driving component is arranged inside the mold core 1 and is connected to the upper pressing plate 7.1 to drive the upper pressing plate 7.1 to rise and fall.

[0055] The front pressing device 9 includes a front pressing seat 9.1, a front pressing slide 9.5, a front pressing drive component 9.2, a front pressing assembly 9.3 and an adaptive pressing assembly 10 for adjusting the pressing angle as the profile 2 is formed and rotated. The front pressing assembly 9.3 and the adaptive pressing assembly 10 are respectively arranged on the front pressing slide 9.5, the front pressing seat 9.1 is arranged on the platform frame 5, the front pressing slide 9.5 is slidably connected to the front pressing seat 9.1, and the front pressing drive component 9.2 is connected to the front pressing slide 9.5 ( Figure 4 9.4 is the connection between the front pressing drive component 9.2 and the front pressing slide 9.5), which drives the front pressing assembly 9.3 and the adaptive pressing assembly 10 on the front pressing slide 9.5 to press the profile 2 toward the positioning station.

[0056] The adaptive pressing assembly 10 includes an adaptive pressing drive component 10.1, an adaptive pressing block 10.2, an adaptive pressing block mounting seat 10.3, and a fixed axis seat 10.4 with a fixed axis 10.6. The adaptive pressing block mounting seat 10.3 is slidably connected to the front pressing slide 9.5, the fixed axis seat 10.4 is disposed on the adaptive pressing block mounting seat 10.3, the adaptive pressing block 10.2 is mounted on the fixed axis 10.6 of the fixed axis seat 10.4 and is rotatably connected to the fixed axis 10.6, and the fixed axis 10.6 is further provided with a limit block 10.5 for limiting the rotation angle of the adaptive pressing block 10.2. The adaptive pressing drive component 10.1 is connected to the adaptive pressing block mounting seat 10.3 to drive the adaptive pressing block 10.2 on the adaptive pressing block mounting seat 10.3 to press the profile 2 against the mold core 1. The adaptive pressing block 10.2 rotates as the profile 2 is formed to adjust the pressing angle.

[0057] In addition, the profile bending processing equipment of the present invention also includes a clamping mechanism 6 for clamping and positioning the profile 2. The clamping mechanism 6 is arranged on the mold core 1 and is located between the front clamping device 9 and the rotary clamping mechanism 4. Specifically, the clamping mechanism 6 includes a clamping mounting seat 6.1, a clamping drive component 6.2, a hinge seat 6.3, a rotating arm 6.4, and a clamping plate 6.5. The clamping mounting seat 6.1 is arranged on the mold core 1, the clamping drive component 6.2 is hinged to the clamping mounting seat 6.1, and the hinge seat 6.3 is connected to the rotating arm 6.4 and hinged to the clamping drive component 6.2. The clamping plate 6.5 is arranged on one end of the rotating arm 6.4 using a rubber plate, and the other end of the rotating arm 6.4 is hinged to the clamping mounting seat 6.1. During operation, the clamping drive component 6.2 drives the rotating arm 6.4 to rotate so that the clamping plate 6.5 clamps and positions the profile 2 to the outside of the mold core 1.

[0058] The present invention provides a profile bending method, which uses the above-mentioned profile bending equipment. The profile bending method comprises:

[0059] The loaded profile 2 is positioned at the positioning station by the front pressing device 9 and the middle upper pressing assembly 7; wherein the front pressing assembly 9.3 of the front pressing device 9 and the adaptive pressing assembly 10 press the profile 2 toward the positioning station.

[0060] The stretching and bending mechanisms 3 on both sides simultaneously clamp and pre-stretch the two ends of the profile 2, and then move the clamped profile 2 closer to the mold core 1 to complete the bending of the first arc of the profile 2; during the bending process of the first arc of the profile 2, the adaptive pressure block 10.2 rotates as the profile 2 is formed to adjust the clamping angle.

[0061] The profile 2 is pressed and positioned by the pressing mechanism 6 and the side upper pressing assembly 8 .

[0062] The rotary clamping mechanism 4 is controlled to fit the profile that is not fitted to the mold core 1, and the stretching and bending mechanism 3 moves the clamped profile 2 closer to the mold core 1 to fit it again. During the process of the profile 2 fitting along the arc with a small radius of the mold core 1, the rotary clamping mechanism 4 is controlled to rotate synchronously with the bending of the profile 2, so that the close-fitting rubber plate 4.5 of the rotary clamping mechanism 4 is always in fit with the supporting profile 2 until the bending of the second arc of the profile 2 is completed, and finally the stretching and bending forming of the profile 2 is realized.

[0063] The first arc section refers to an arc section with a relatively large bending radius in the entire mold core 1 ; the second arc section refers to an arc section with a relatively small bending radius in the entire mold core 1 , and the second arc section is located on the side of the first arc section.

[0064] Specifically, during the first arc bending process of the profile 2, the adaptive clamping drive component 10.1 drives the adaptive clamping block 10.2 on the adaptive clamping block mounting seat 10.3 to clamp the profile 2 to the mold core 1, and the adaptive clamping block 10.2 rotates as the profile 2 is formed to adjust the clamping angle.

[0065] Before the second arc of the profile 2 is bent, the clamping drive component 6.2 of the clamping mechanism 6, located between the front clamping device 9 and the rotary clamping mechanism 4, drives the rotating arm 6.4 to rotate, causing the clamping plate 6.5 to clamp and position the profile 2 to the outside of the mold core 1. Simultaneously, it drives the upper side clamping assembly 8 to clamp and position the profile 2. After positioning, the clamping drive component 4.3 drives the contact rubber plate 4.5 on the guide slider 4.4 to press the profile 2 to the mold core 1. The rotary drive component 4.6 drives the rotary clamping seat 4.2 and the contact rubber plate 4.5 to rotate, so that the contact rubber plate 4.5 of the rotary clamping mechanism 4 continues to contact and support the profile 2 until the profile 2 is bent into a small radius, ultimately achieving the stretch bending of the profile 2.

[0066] The profile bending processing method also includes the step of straightening the straight section of the profile 2; after completing the bending of the second arc of the profile 2, the rotary pressing mechanism 4 is controlled to fit the straight section of the profile 2, and the bending mechanism 3 moves in the opposite direction with the rotary pressing mechanism 4 as a support point to achieve straightening of the straight section of the profile 2; the reverse direction refers to the opposite direction of the bending direction of the second arc of the profile 2.

[0067] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A profile bending equipment, characterized by: include: A working platform with a mold core is provided; A bending mechanism used to clamp and stretch the two ends of the profile, and bend the profile until it rests against the mold core; and a rotary clamping mechanism to prevent deformation or wrinkling at small radius forming areas of the profile; The stretching and bending mechanisms are located on both sides of the working platform; The working platform includes a platform frame and a positioning mechanism for positioning the profile fitted to the mold core; the mold core is arranged on the platform frame, the outer side of the mold core serves as the positioning position of the profile, and the positioning mechanism is arranged on the platform frame and positions the profile at the positioning position; The rotary pressing mechanism is arranged on the platform frame and is located on the side of the positioning mechanism. The rotary pressing mechanism can be rotatably arranged to realize synchronous rotation with the bending of the profile during the forming process of the profile along the arc with a small radius of the mold core, so as to fit the supporting profile and avoid deformation or wrinkling of the profile; The positioning mechanism includes a front pressing device and an upper pressing device; the upper pressing device is connected to the mold core and is located above the positioning station, and is used to press and position the top of the profile; the front pressing device is set on the platform frame and is located in front of the positioning station, and is used to press and position the front of the profile; The front pressing device includes a front pressing seat, a front pressing slide, a front pressing driving component, a front pressing assembly and an adaptive pressing assembly for adjusting the pressing angle as the profile is formed; the front pressing assembly and the adaptive pressing assembly are respectively arranged on the front pressing slide; the front pressing seat is arranged on the platform frame, the front pressing slide is slidably connected to the front pressing seat, and the front pressing driving component is connected to the front pressing slide to drive the front pressing assembly and the adaptive pressing assembly on the front pressing slide to press the profile toward the positioning station; The upper pressing device includes an intermediate upper pressing assembly located above the middle of the positioning station and a side upper pressing assembly located above the side of the positioning station; the intermediate upper pressing assembly and the side upper pressing assembly have the same structure and both include an upper pressing plate and an upper pressing plate driving component; the upper pressing plate driving component is arranged inside the mold core and connected to the upper pressing plate to drive the upper pressing plate to rise and fall; The adaptive clamping assembly includes an adaptive clamping drive component, an adaptive clamping block, an adaptive clamping block mounting seat and a fixed shaft seat with a fixed shaft; the adaptive clamping block mounting seat is slidably connected to the front clamping slide; the fixed shaft seat is arranged on the adaptive clamping block mounting seat; the adaptive clamping block sleeve is set with the fixed shaft of the shaft seat and is rotatably connected to the fixed shaft, and a limit block for limiting the rotation angle of the adaptive clamping block is also provided on the fixed shaft; the adaptive clamping drive component is connected to the adaptive clamping block mounting seat to drive the adaptive clamping block on the adaptive clamping block mounting seat to clamp the profile to the mold core, and the adaptive clamping block rotates as the profile is formed to adjust the clamping angle.

2. The profile bending equipment according to claim 1, characterized in that: The rotary pressing mechanism includes a rotating assembly, a pressing assembly for pressing the profile to fit it to the mold core, and a rotary driving component for driving the rotating assembly to rotate; the pressing assembly is arranged on the rotating assembly, and its pressing surface faces the positioning station; the rotating assembly can be rotatably arranged on the platform frame, and the rotary driving component is connected to the rotating assembly; when working, the pressing assembly presses the profile to the mold core, and the rotary driving component drives the rotating assembly to rotate so that the profile fits along the arc of the small radius of the mold core.

3. The profile bending equipment according to claim 2, characterized in that: The rotating assembly includes a rotating base, a rotating pressing seat, a fixed shaft and a rotating sleeve; the rotating base is connected to the mold core through the fixed shaft, and the rotating pressing seat is connected to the fixed shaft through the rotating sleeve; the pressing assembly is arranged on the rotating pressing seat, and the rotating driving component is connected to the rotating pressing seat to drive the rotating pressing seat and the pressing assembly to rotate.

4. The profile bending equipment according to claim 1, characterized in that: The profile bending processing equipment also includes a pressing mechanism for pressing and positioning the profile; the pressing mechanism is arranged on the mold core and is located between the positioning mechanism and the rotary pressing mechanism; The crimping mechanism includes a crimping mounting seat, a crimping driving component, a hinge seat, a rotating arm and a crimping plate; the crimping mounting seat is arranged on the mold core; the crimping driving component is hinged to the crimping mounting seat; the hinge seat is connected to the rotating arm and hinged to the crimping driving component; the crimping plate is arranged on one end of the rotating arm, and the other end of the rotating arm is hinged to the crimping mounting seat; when working, the crimping driving component drives the rotating arm to rotate so that the crimping plate crimps the profile to the outside of the mold core.

5. A profile bending method, characterized in that: The profile bending processing equipment according to claim 4 is used; the profile bending processing method is: The positioning mechanism positions the loaded profile to the positioning station; The stretching and bending mechanisms on both sides simultaneously clamp and pre-stretch the two ends of the profile, and then move the clamped profile closer to the mold core to complete the bending of the first arc of the profile; The rotary clamping mechanism is controlled to fit the profile that is not fitted to the mold core, and the stretch-bending mechanism moves the clamped profile closer to the mold core to fit it again. During the process of the profile fitting along the arc with a small radius of the mold core, the rotary clamping mechanism is controlled to rotate synchronously with the bending of the profile, so that the rotary clamping mechanism always fits the supporting profile until the second arc of the profile is bent, and finally the stretch-bending forming of the profile is achieved; The first arc section refers to an arc section with a relatively large bending radius in the entire mold core; the second arc section refers to an arc section with a relatively small bending radius in the entire mold core.

6. The profile bending method according to claim 5, characterized in that: Before the first arc of the profile is bent, the profile is pressed and positioned by the front pressing device and the middle upper pressing assembly; Before the second arc of the profile is bent, the profile is pressed and positioned by the pressing mechanism and the side upper pressing assembly.

7. The profile bending method according to claim 6, characterized in that: The profile is pressed toward the positioning station by the front pressing assembly and the adaptive pressing assembly; during the pressing process, the adaptive pressing block rotates as the profile is formed to adjust the pressing angle.

8. The profile bending method according to claim 5, characterized in that: The profile bending processing method also includes the step of straightening the straight section of the profile; after completing the bending of the second arc section of the profile, controlling the rotary pressing mechanism to fit the straight section of the profile, and the bending mechanism uses the rotary pressing mechanism as a support point to move in the opposite direction to achieve straightening of the straight section of the profile; the reverse direction refers to the direction opposite to the bending direction of the second arc section of the profile.

Images