Efficient rolling and shearing forming device and method for strip steel of aviation structural part

Abstract

The invention provides an aviation structural part strip steel efficient rolling and shearing forming device and method.The aviation structural part strip steel efficient rolling and shearing forming device comprises a lathe bed, an upper and lower roller assembly and a left and right roller assembly, the lathe bed is fixed to a supporting base, the upper and lower roller assembly comprises an upper roller and a lower roller, and the upper roller is installed on a support arranged on the lathe bed part through a bearing; an upper driving motor is installed on the support and is in transmission connection with the upper roller, the lower roller is installed on a lower roller installation frame, the lower roller installation frame is installed on a sliding block, the sliding block is arranged on a longitudinal sliding rail in a sliding mode, the longitudinal sliding rail is installed on the lathe bed, and a lower driving motor is installed on the lower roller installation frame and is in transmission connection with the lower roller. According to the three-roller type bending machine, the structural design is novel, efficient rolling forming and shearing after one-time feeding of strip steel are achieved, and compared with a traditional three-roller type bending machine, the machining efficiency is improved by at least 50%, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of processing of aerospace structural parts, and particularly to a high-efficiency rolling and shearing forming device and method for strip steel of aerospace structural parts. Background Art

[0002] In the field of aerospace, with the continuous development of the machinery industry, the manufacturing process requirements for aerospace structural parts are becoming increasingly stringent. As a traditional profile processing equipment, the three-roll bending machine has been applied in many occasions, but it has certain limitations. The existing three-roll bending machine usually includes an upper roll, two side rolls, an upper roll die, side roll dies, a left supporting roll, a right supporting roll, side roll cylinders, supporting roll lifting cylinders, supporting roll rotating cylinders, supporting roll dragging plate cylinders, hydraulic motors, a hydraulic system and an electrical system. When bending profiles, the flatness and perpendicularity of the profiles are adjusted by the supporting rolls. However, for the processing of strip steel in aerospace structural parts, such as rolling the strip steel into shape and performing rolling shearing, the three-roll bending machine is difficult to meet the high-efficiency and high-precision processing requirements.

[0003] On the one hand, the structural design of the three-roll bending machine makes it cumbersome to operate and inefficient in processing strip steel of aerospace structural parts with complex shapes. For example, when rolling strip steel with different curvature radii, it is necessary to frequently adjust the supporting rolls and dies, consuming a large amount of time and labor. On the other hand, due to its limited precision control ability, it is difficult to ensure the dimensional accuracy and surface quality of the processed strip steel of aerospace structural parts, affecting the overall performance and safety of aerospace structural parts.

[0004] In addition, the structural parts of aero-engine products have extremely high requirements for the processing quality of strip steel. The traditional three-roll bending machine is prone to problems such as uneven strip steel deformation and surface scratches during the processing process, and cannot meet the high-quality standards of the aerospace manufacturing industry. With the rapid development of the aerospace manufacturing industry, it is urgent to improve the processing equipment and methods for strip steel of aerospace structural parts. Therefore, it is necessary to design a high-efficiency rolling and shearing forming device for strip steel of aerospace structural parts. Summary of the Invention

[0005] The present invention provides a high-efficiency rolling and shearing forming device and method for strip steel of aerospace structural parts, so as to solve the problems such as uneven strip steel deformation and surface scratches easily generated by the traditional three-roll bending machine during the processing process, and achieve the purpose of efficiently rolling and forming and precisely shearing the strip steel after one-time loading.

[0006] The present invention provides a high-efficiency rolling and shearing forming device for strip steel of aerospace structural parts, including a bed body, an upper and lower roll assembly and a left and right roll assembly;

[0007] The bed body is fixed on a support base;

[0008] The upper and lower roller assembly comprises an upper roller and a lower roller, wherein the upper roller is mounted on a bracket provided on the bed part through a bearing, an upper drive motor is mounted on the bracket, and the upper drive motor is connected to the upper roller in a transmission manner, the lower roller is mounted on a lower roller mounting frame, and the lower roller mounting frame is mounted on a sliding block, and the sliding block is slidably arranged on a longitudinal slide rail, and the longitudinal slide rail is mounted on the bed, and a lower drive motor is mounted on the lower roller mounting frame, and the lower drive motor is connected to the lower roller in a transmission manner, and a lifting hydraulic cylinder is also mounted on the bed, and the telescopic end of the lifting hydraulic cylinder is connected to the lower end surface of the sliding block;

[0009] The left and right roller assemblies include a left roller mechanism and a right roller mechanism, and the left roller mechanism and the right roller mechanism are respectively arranged on both sides of the upper and lower roller assemblies.

[0010] Preferably, the left roller mechanism includes a left roller, a left roller mounting seat, a first support platform, a first pushing assembly and a first lifting hydraulic cylinder, the left roller is mounted on the left roller mounting seat, the bottom of the left roller mounting seat is slidably connected to the upper end surface of the first support platform through a first sliding member, the first lifting hydraulic cylinder is installed between the lower end surface of the first support platform and the support base, and the first pushing assembly is connected to the left roller mounting seat.

[0011] Preferably, the right roller mechanism includes a right roller, a right roller mounting seat, a second support platform, a second pushing assembly and a second lifting hydraulic cylinder, the right roller is mounted on the right roller mounting seat, the bottom of the right roller mounting seat is slidably connected to the upper end surface of the second support platform through a second sliding member, the second lifting hydraulic cylinder is installed between the lower end surface of the second support platform and the support base, and the second pushing assembly is connected to the right roller mounting seat.

[0012] Preferably, the first pushing assembly and the second pushing assembly have the same structure, both comprising a screw motor, a transmission screw and a screw nut, the screw nut being installed on the left roller mounting seat and the right roller mounting seat, the screw motor being installed on the upper end surfaces of the first support platform and the second support platform, the motor shaft of the screw motor being connected to one end of the transmission screw, and the other end of the transmission screw being threadedly installed on the screw nut.

[0013] Preferably, it also includes a mold assembly, which includes an upper concave mold and a lower convex mold, the upper concave mold is sleeved on the outside of the upper roller, the lower convex mold is sleeved on the outside of the lower roller, and the upper concave mold is adapted to the lower convex mold.

[0014] Preferably, it also includes a shearing assembly, which is installed on the bed and is located between the upper roller and the lower roller. The shearing assembly includes an annular cutter, a cutter mounting frame and a servo motor. The annular cutter is installed on the cutter mounting frame, the servo motor is installed on the cutter mounting frame, and the motor shaft of the servo motor is connected to the cutter shaft of the annular cutter.

[0015] Preferably, it further includes a control box which is installed on one side of the bed body. A touch screen is installed on the front side of the control box, and a controller is installed inside the control box. The controller is connected to the upper and lower roller assemblies, the left and right roller assemblies, and the shearing assembly.

[0016] Preferably, a method for using a high-efficiency rolling and shearing forming device for strip steel of an aviation structural member includes the following steps:

[0017] A. Strip steel feeding: Place the strip steel to be processed on the feeding and conveying device. The feeding and conveying device has an automatic centering function to make the strip steel enter the rolling area.

[0018] B. Rolling forming: The strip steel enters between the upper and lower rollers. The upper and lower rollers perform forward and reverse rotational movements. The lower roller rises to apply pressure to the strip steel, and the left and right rollers assist the strip steel to deform uniformly.

[0019] C. Pressing forming: Place the rolled cylindrical body into the special concave-convex mold notch. The lower roller rises, and the left and right rollers assist to apply pressure to the cylindrical body to make it meet the shape requirements of the aviation structural member.

[0020] D. Rotary shearing: The special shearing mold performs rotary shearing on the formed workpiece. A high-precision position sensor is used to monitor the position and speed of the shearing mold to ensure the shearing accuracy. The finished workpiece is sent out of the equipment through the discharging and conveying device.

[0021] Beneficial effects:

[0022] (1) The structure of the present invention is novel in design, realizing the high-efficiency rolling forming and shearing of strip steel after one-time feeding. Compared with the traditional three-roller bending machine, the processing efficiency is increased by at least 50%, improving the production efficiency.

[0023] (2) The upper and lower roller assemblies adopted in the present invention can ensure that the strip steel is uniformly stressed during the rolling process, avoiding problems such as surface scratches and uneven deformation; the left and right roller assemblies adopted can precisely control the horizontal displacement of the left and right rollers, and can also control the up and down movement of the left and right rollers, ensuring that the left and right rollers can flexibly adjust their positions during the auxiliary forming process to meet the processing requirements of strip steel with different shapes.

[0024] (3) The shearing assembly adopted in the present invention can perform rotary cutting on the formed product, with high cutting efficiency.

[0025] The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to be able to understand the technical means of the embodiments of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the specific embodiments of the present invention are hereinafter specifically exemplified. Description of the Drawings

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Structural schematic diagram of the present invention;

[0028] Figure 2 Side view of the installation of the upper and lower roller assemblies of the present invention;

[0029] Figure 3 Structural schematic diagram of the mold assembly of the present invention;

[0030] Figure 4 Structural schematic diagram of the shearing assembly of the present invention;

[0031] Figure 5 Flow chart of the operation of the present invention;

[0032] Explanation of reference numerals: Bed 1, support base 2, upper roller 3, lower roller 4, bearing 5, bracket 6, upper drive motor 7, longitudinal slide rail 10, lower drive motor 11, lifting hydraulic cylinder 12, left roller 13, left roller mounting seat 14, first support platform 15, first lifting hydraulic cylinder 16, first sliding member 17, right roller 18, right roller mounting seat 19, second support platform 20, second lifting hydraulic cylinder 21, second sliding member 22, lead screw motor 23, transmission lead screw 24, lead screw nut 25, upper female mold 26, lower male mold 27, annular cutting tool 28, cutting tool mounting bracket 29, servo motor 30, control box 31, touch screen 32, controller 33. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs; the terms used in the description of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the description and claims of the present invention and the drawings are intended to cover non-exclusive inclusion.

[0035] References to "embodiments" in this specification mean that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the invention. The phrase "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0036] The directional terms used in the following description are the directions shown in the figures and do not limit the specific structure of the present invention. For example, in the description of the present invention, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0037] In addition, expressions indicating directions such as the X direction, Y direction, and Z direction for explaining the operations and structures of the components of the present embodiment are not absolute but relative. Although these indications are appropriate when the components are in the positions shown in the figures, when these positions change, these directions should have different interpretations to correspond to the changes.

[0038] In addition, the terms "first", "second", etc. in the description and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, the "connection" or "coupling" of mechanical structures may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a screw, bolt, or other fixing member; a physical connection may also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection may also be an integral connection, such as a welded, bonded, or integrally formed connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0041] Please refer to Figures 1 - 5 , the present invention discloses a high-efficiency rolling and shearing forming device for strip steel of an aviation structural member, which includes a bed 1, an upper and lower roll assembly, and a left and right roll assembly;

[0042] The bed 1 is fixed on the support base 2;

[0043] The upper and lower roll assembly includes an upper roll 3 and a lower roll 4. The upper roll 3 is installed on a bracket 6 provided on the bed part through a bearing 5. An upper drive motor 7 is installed on the bracket 6, and the upper drive motor 7 is in transmission connection with the upper roll 3. The lower roll 4 is installed on a lower roll mounting frame 5, and the lower roll mounting frame 5 is installed on a sliding block 6. The sliding block 6 is slidably arranged on a longitudinal slide rail 10, and the longitudinal slide rail 10 is installed on the bed 1. A lower drive motor 11 is installed on the lower roll mounting frame 5, and the lower drive motor 11 is in transmission connection with the lower roll 4. A lifting hydraulic cylinder 12 is also installed on the bed 1, and the telescopic end of the lifting hydraulic cylinder 12 is connected to the lower end surface of the sliding block 6; The upper and lower roll assembly adopted in the present invention can ensure that the strip steel is evenly stressed during the rolling process, avoiding problems such as surface scratches and uneven deformation.

[0044] In the present invention, the left and right roller assemblies include a left roller mechanism and a right roller mechanism, and the left roller mechanism and the right roller mechanism are respectively arranged on both sides of the upper and lower roller assemblies. The left roller mechanism includes a left roller 13, a left roller mounting seat 14, a first support platform 15, a first pushing assembly, and a first lifting hydraulic cylinder 16. The left roller 13 is mounted on the left roller mounting seat 14. The bottom of the left roller mounting seat 14 is slidably connected to the upper end surface of the first support platform 15 through a first sliding member 17. The first lifting hydraulic cylinder 16 is mounted between the lower end surface of the first support platform 15 and the support base 2. The first pushing assembly is connected to the left roller mounting seat 14. The right roller mechanism includes a right roller 18, a right roller mounting seat 19, a second support platform 20, a second pushing assembly, and a second lifting hydraulic cylinder 21. The right roller 18 is mounted on the right roller mounting seat 19. The bottom of the right roller mounting seat 19 is slidably connected to the upper end surface of the second support platform 20 through a second sliding member 22. The second lifting hydraulic cylinder 21 is mounted between the lower end surface of the second support platform 20 and the support base 2. The second pushing assembly is connected to the right roller mounting seat 19. The first pushing assembly and the second pushing assembly have the same structure, and both include a lead screw motor 23, a transmission lead screw 24, and a lead screw nut 25. The lead screw nut 25 is mounted on the left roller mounting seat 14 and the right roller mounting seat 19. The lead screw motor 23 is mounted on the upper end surfaces of the first support platform 15 and the second support platform 20. The motor shaft of the lead screw motor 23 is connected to one end of the transmission lead screw 24, and the other end of the transmission lead screw 24 is threadedly mounted on the lead screw nut 25. The left and right roller assemblies adopted in the present invention can control the up and down movement of the left and right rollers, ensuring that the left and right rollers can be flexibly adjusted in position during the auxiliary forming process to meet the processing requirements of strip steel with different shapes.

[0045] The present invention further includes a die assembly, and the die assembly includes an upper female die 26 and a lower male die 27. The upper female die 26 is sleeved outside the upper roller 3, and the lower male die 27 is sleeved outside the lower roller 4. The upper female die 26 and the lower male die 27 are adapted to each other. The rolled cylindrical body is placed into the slots of the upper female die and the lower male die. The lower roller rises, and the left and right rollers apply pressure to press and form the cylindrical body so that the cylindrical body meets the shape requirements of the aviation structural parts.

[0046] The present invention further includes a shearing assembly, which is installed on the bed body 1 and is located between the upper roller 3 and the lower roller 4. The shearing assembly includes an annular cutter 28, a cutter mounting bracket 29 and a servo motor 30. The annular cutter 28 is installed on the cutter mounting bracket 29, the servo motor 30 is installed on the cutter mounting bracket 29, and the motor shaft of the servo motor 30 is connected to the cutter shaft of the annular cutter 28. After the roll forming is completed, the shearing assembly starts to work, and rotates and shears along the shearing line of the workpiece at a rotational speed of 3000 r / min and a feed rate of 0.5 mm / s. After about 10 s, the workpiece is rotationally sheared into two halves. After the shearing is completed, the finished workpiece is sent out of the equipment through the discharging conveying device, and the entire processing process ends. The shearing assembly adopted by the present invention can perform rotary cutting on the formed product, and has high cutting efficiency.

[0047] In addition, the present invention further includes a control box 31, which is installed on one side of the bed body 1. A touch screen 32 is installed on the front side of the control box 31, and a controller 33 is installed inside the control box 31. The controller is connected to the upper and lower roller assemblies, the left and right roller assemblies and the shearing assembly.

[0048] Working principle: A method for using a high-efficiency roll-pressing and shearing forming device for strip steel of an aviation structural part includes the following steps:

[0049] A. Strip steel loading: Place the strip steel to be processed on the feeding conveying device. The feeding conveying device has an automatic centering function to make the strip steel enter the rolling area;

[0050] B. Roll forming: The strip steel enters between the upper and lower rollers. The upper and lower rollers perform forward and reverse rotational movements. The lower roller rises to apply pressure to the strip steel, and the left and right rollers assist the strip steel to deform uniformly;

[0051] C. Press forming: Place the roll-formed cylinder into the notch of the special concave-convex mold. The lower roller rises, and the left and right rollers assist to apply pressure to the cylinder to make it meet the shape requirements of the aviation structural part;

[0052] D. Rotary shearing: The special shearing mold performs rotary shearing on the press-formed workpiece. The high-precision position sensor is used to monitor the position and speed of the shearing mold to ensure the shearing accuracy. The finished workpiece is sent out of the equipment through the discharging conveying device.

[0053] Taking the strip steel of a certain type of aviation engine structural part as an example, assume that the thickness of the strip steel is 3 mm, the width is 100 mm, the diameter of the target formed cylinder is 200 mm, and the shearing position is in the middle of the cylinder. According to these parameters, corresponding values are input on the HMI interface of the electrical system, including the rotational speeds of the upper and lower rollers, the rising stroke of the lower roller, the movement trajectories of the left and right rollers, the rotational speed and feed rate of the shearing mold, etc.

[0054] Place the strip on the feeding conveyor, start the feeding conveyor, and the strip enters between the upper and lower rollers at a speed of 2 m / min. The upper and lower rollers start to rotate in forward and reverse directions at a speed of 500 r / min, and the lower roller rises at a speed of 0.5 mm / s to apply pressure to the strip. According to the deformation of the strip, the left and right rollers move inward at a speed of 0.1 mm / s in the horizontal direction and make fine adjustments at a speed of 0.05 mm / s in the vertical direction to assist the strip in uniform deformation. During the rolling process, the laser displacement sensor monitors the thickness and forming dimensions of the strip in real time, feeds the monitoring data back to the electrical system, and the electrical system automatically adjusts the motion parameters of the rollers according to the feedback data. After about 30 s of rolling, the strip is gradually rolled into a cylindrical shape with a diameter of 200 mm.

[0055] Place the rolled cylinder into the special concave-convex die slot. The lower roller rises 5 mm, and the left and right rollers apply a pressure of 2 MPa to form the cylinder so that it meets the shape requirements of the aerospace structural parts. The forming process lasts about 20 s. Then, the special shearing die starts to work, rotates and shears along the shearing line of the workpiece at a rotational speed of 3000 r / min and a feed rate of 0.5 mm / s. After about 10 s, the workpiece is rotationally sheared into two halves. After shearing is completed, the finished workpiece is sent out of the equipment through the discharging conveyor, and the entire processing process ends.

[0056] In summary, the structure design of the present invention is novel, realizing efficient rolling forming and shearing of the strip after one-time feeding. Compared with the traditional three-roll bending machine, the processing efficiency is increased by at least 50%, improving the production efficiency.

[0057] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An efficient rolling and shearing forming device for strip steel of aviation structural parts, characterized in that: It comprises a bed (1), an upper and lower roller assembly and a left and right roller assembly; The bed (1) is fixed on a supporting base (2); The upper and lower roller assembly comprises an upper roller (3) and a lower roller (4); the upper roller (3) is mounted on a bracket (6) provided on the bed part through a bearing (5); an upper drive motor (7) is mounted on the bracket (6); the upper drive motor (7) is connected to the upper roller (3) in a transmission manner; the lower roller (4) is mounted on a lower roller mounting frame (8); the lower roller mounting frame (8) is mounted on a sliding block (9); the sliding block (9) is slidably arranged on a longitudinal slide rail (10); the longitudinal slide rail (10) is mounted on the bed (1); a lower drive motor (11) is mounted on the lower roller mounting frame (5); the lower drive motor (11) is connected to the lower roller (4) in a transmission manner; a lifting hydraulic cylinder (12) is also mounted on the bed (1); the telescopic end of the lifting hydraulic cylinder (12) is connected to the lower end surface of the sliding block (6); The left and right roller assemblies include a left roller mechanism and a right roller mechanism, and the left roller mechanism and the right roller mechanism are respectively arranged on both sides of the upper and lower roller assemblies.

2. The highly efficient rolling and shearing forming device for aviation structural parts strip according to claim 1 is characterized in that: The left roller mechanism comprises a left roller (13), a left roller mounting seat (14), a first support platform (15), a first pushing assembly and a first lifting hydraulic cylinder (16); the left roller (13) is mounted on the left roller mounting seat (14); the bottom of the left roller mounting seat (14) is slidably connected to the upper end surface of the first support platform (15) via a first sliding member (17); the first lifting hydraulic cylinder (16) is installed between the lower end surface of the first support platform (15) and the support base (2); and the first pushing assembly is connected to the left roller mounting seat (14).

3. The high-efficiency rolling and shearing forming device for aviation structural parts strip according to claim 2 is characterized in that: The right roller mechanism comprises a right roller (18), a right roller mounting seat (19), a second supporting platform (20), a second pushing assembly and a second lifting hydraulic cylinder (21); the right roller (18) is mounted on the right roller mounting seat (19); the bottom of the right roller mounting seat (19) is slidably connected to the upper end surface of the second supporting platform (20) via a second sliding member (22); the second lifting hydraulic cylinder (21) is installed between the lower end surface of the second supporting platform (20) and the supporting base (2); and the second pushing assembly is connected to the right roller mounting seat (19).

4. The high-efficiency rolling and shearing forming device for aviation structural parts strip according to claim 3 is characterized in that: The first pushing assembly and the second pushing assembly have the same structure, and both include a screw motor (23), a transmission screw (24) and a screw nut (25); the screw nut (25) is mounted on a left roller mounting seat (14) and a right roller mounting seat (19); the screw motor (23) is mounted on the upper end surfaces of the first supporting platform (15) and the second supporting platform (20); the motor shaft of the screw motor (23) is connected to one end of the transmission screw (24); and the other end of the transmission screw (24) is threadedly mounted on the screw nut (25).

5. The high-efficiency rolling and shearing forming device for aviation structural parts strip according to claim 4, characterized in that: The mold assembly also includes an upper concave mold (26) and a lower convex mold (27). The upper concave mold (26) is mounted on the outside of the upper roller (3), and the lower convex mold (27) is mounted on the outside of the lower roller (4). The upper concave mold (26) is adapted to the lower convex mold (27).

6. The highly efficient rolling and shearing forming device for aviation structural parts strip steel according to claim 5, characterized in that: The invention also comprises a shearing assembly, which is mounted on the bed (1) and is located between the upper roller (3) and the lower roller (4). The shearing assembly comprises an annular cutter (28), a cutter mounting frame (29) and a servo motor (30). The annular cutter (28) is mounted on the cutter mounting frame (29), the servo motor (30) is mounted on the cutter mounting frame (29), and the motor shaft of the servo motor (30) is connected to the cutter shaft of the annular cutter (28).

7. The highly efficient rolling and shearing forming device for aviation structural parts strip according to claim 1, characterized in that: The machine also comprises a control box (31), the control box (31) being mounted on one side of the bed (1), a touch screen (32) being mounted on the front side of the control box (31), a controller (33) being mounted inside the control box (31), and the controller being connected to the upper and lower roller assemblies, the left and right roller assemblies, and the shearing assembly.

8. A method for using the highly efficient rolling and shearing forming device for aerospace structural parts strip according to claim 1, characterized in that: The method of use includes the following steps: A. Strip loading: Place the strip to be processed on the feed conveyor, which has an automatic centering function to allow the strip to enter the rolling area; B. Rolling forming: The strip enters between the upper and lower rollers, and the upper and lower rollers rotate forward and reverse. The lower roller rises to exert pressure on the strip, and the left and right rollers assist the strip to deform evenly. C. Pressing: Place the roll-formed cylinder into the notch of a special concave-convex mold, the lower roller rises, and the left and right rollers assist, applying pressure to the cylinder to make it meet the shape requirements of aviation structural parts; D. Rotary shearing: A special shearing die is used to perform rotary shearing on the pressed workpiece. A high-precision position sensor is used to monitor the position and speed of the shearing die to ensure shearing accuracy. The finished workpiece is sent out of the equipment through a discharging conveyor.

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