Light steel keel punch forming device and forming method

Abstract

The embodiment of the present disclosure relates to the technical field of light steel keel processing equipment, and provides a light steel keel punching forming device and a forming method, which are used for punching and forming a plate into a light steel keel. The forming device comprises a punching part, the punching part is movably arranged; a first bending assembly is arranged on one side of the punching part; a second inner support assembly is arranged on one side of the first bending assembly, is movably arranged and is configured to be capable of passing through a square through hole and abutting against the inner wall of the third edge or the first edge after moving; and a second bending assembly is arranged on one side of the second inner support assembly. Through the above technical scheme, the technical problem that the automation degree of light steel keel processing is relatively low in the prior art is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of light steel keel processing equipment, in particular to a light steel keel punching forming device and a forming method. BACKGROUND

[0002] Light steel keels are divided into many types, one of which is processed from a plate 600, as shown in the light steel keel 601 cross section is square, has a first side 610, a second side 620, a third side 630, a fourth side 640 and a fifth side 650 connected in turn, the first side 610 and the second side 620 are connected vertically, the second side 620 and the third side 630 are connected vertically, the fourth side 640 and the fifth side 650 are coplanar, the third side 630 and the fourth side 640 are connected vertically, the first side 610 and the fifth side 650 are connected vertically, and the second side 620 and the fourth side 640 both have a plurality of square through holes 660 arranged in turn. Figure 1 As shown in the light steel keel 601, when processing, it is usually punched and bent by using existing general processing equipment, however, this processing method has relatively low automation degree, which affects the production efficiency. Figure 1 SUMMARY

[0003] To overcome the above-mentioned defects, embodiments of the present disclosure provide a light steel keel punching forming device and a forming method, which solve the technical problem of relatively low automation degree of light steel keel processing in the prior art.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a light steel keel punching forming device, comprising:

[0005] a punching member, the punching member is movably arranged;

[0006] a first bending assembly, the first bending assembly is arranged on one side of the punching member;

[0007] a second inner support assembly, the second inner support assembly is arranged on one side of the first bending assembly, movably arranged and configured to pass through the square through hole and abut against the inner wall of the third side or the first side after moving;

[0008] a second bending assembly, the second bending assembly is arranged on one side of the second inner support assembly.

[0009] For example, the light steel keel punching forming device provided by at least one embodiment of the present disclosure further comprises:

[0010] ​The mobile clamping table is used for clamping the plate and is movably arranged to sequentially pass through the punching station, the first bending station and the second bending station after being moved.

[0011] For example, the light steel keel punching forming device provided by at least one embodiment of the present disclosure further comprises a first inner support assembly arranged at the first bending station, which comprises:

[0012] The first inner die is movably arranged and can be pressed on the plate to become the corresponding part of the second side after being moved.

[0013] For example, the light steel keel punching forming device provided by at least one embodiment of the present disclosure, the first bending assembly comprises:

[0014] The first pushing piece is movably arranged and has a first inclined pushing surface and a second inclined pushing surface, and the first inclined pushing surface and the second inclined pushing surface are respectively arranged on both sides of the first inner die. After the first pushing piece is moved up and down, the first pushing piece can push the first side and the third side on both sides of the second side of the plate to be bent out;

[0015] The second pushing piece and the third pushing piece are both horizontally arranged on the first pushing piece and can respectively penetrate the first inclined pushing surface and the second inclined pushing surface after being moved. After the second pushing piece is horizontally moved, the second pushing piece can push the first side to make the first side perpendicular to the second side. After the third pushing piece is horizontally moved, the third pushing piece can push the third side to make the third side perpendicular to the second side.

[0016] For example, the light steel keel punching forming device provided by at least one embodiment of the present disclosure, the second inner support assembly comprises:

[0017] The second inner die is movably arranged at the second bending station and can pass through the square through hole and be close to the inner wall of the first side or the third side after being moved.

[0018] The sliding expansion die is obliquely arranged on the second inner die and has at least an expansion state and a retraction state. When the sliding expansion die is in the retraction state, the outer contour of the sliding expansion die and the second inner die is smaller than the square through hole, so that the sliding expansion die and the second inner die can pass through the square through hole and abut against the inner wall of the first side or the third side. When the sliding expansion die is in the expansion state, the outer contour of the sliding expansion die and the second inner die is larger than the square through hole, and the sliding expansion die and the second inner die can cover the upper and lower edges of the first side and the third side.

[0019] For example, the light steel keel stamping forming device provided by at least one embodiment of the present disclosure further comprises a second inner support assembly, and the second inner support assembly comprises a second inner die and a sliding expansion die.

[0020] For example, the light steel keel stamping forming device provided by at least one embodiment of the present disclosure further comprises a second inner support assembly, and the second inner support assembly comprises a second inner die and a sliding expansion die.

[0021] For example, the light steel keel stamping forming device provided by at least one embodiment of the present disclosure further comprises a second inner support assembly, and the second inner support assembly comprises a second inner die and a sliding expansion die.

[0022] For example, the light steel keel stamping forming device provided by at least one embodiment of the present disclosure further comprises a second inner support assembly, and the second inner support assembly comprises a second inner die and a sliding expansion die.

[0023] According to another aspect, at least one embodiment of the present disclosure provides a forming method for processing a plate into a light steel keel by using the light steel keel stamping forming device, and the forming method comprises the following steps:

[0024] S1, the plate is sent to a punching station on the moving clamping table, and a punching piece punches two rows of square through holes on the plate;

[0025] S2, continue to send to a first bending station, and a first bending assembly bends out a first edge and a second edge which are perpendicular to each other, and a second edge and a third edge which are perpendicular to each other;

[0026] S3, continue to send to a second bending station, and a second bending assembly bends out a first edge and a fifth edge which are perpendicular to each other, and the second inner support assembly supports the inner wall of the first edge from the inside through the square through hole when bending;

[0027] S4, keep at the second bending station, rotate the moving clamping table by 180°, and a second bending assembly bends out a third edge and a fourth edge which are perpendicular to each other, and the second inner support assembly supports the inner wall of the third edge from the inside through the square through hole when bending, so as to obtain a square light steel keel.

[0028] The embodiments of the present disclosure have the following beneficial effects:

[0029] In the present disclosure, the device realizes integrated forming from the plate to the light steel keel through the cooperation of multiple components such as punching, bending, and inner support, optimizes the production process, realizes automatic production, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some exemplary embodiments of the present disclosure. Other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the exemplary embodiments of the present disclosure and the drawings.

[0031] Figure 1 The present disclosure is a schematic diagram of a plate and a light steel keel structure.

[0032] Figure 2 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure.

[0033] Figure 3 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure. Figure 1 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure.

[0034] Figure 4 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure. Figure 3 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure.

[0035] Figure 5 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure. Figure 3 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure.

[0036] Figure 6 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure. Figure 5 The present disclosure is a schematic diagram of the structure of a light steel keel punching forming device in an embodiment of the present disclosure.

[0037] In the figure: punching piece 100, first bending assembly 200, first pushing piece 210, first inclined pushing surface 211, second inclined pushing surface 212, second pushing piece 220, third pushing piece 230, second inner support assembly 300, second inner mold 310, limiting stop 311, sliding expansion mold piece 320, abutting portion 321, elastic piece 330, second bending assembly 400, moving clamping table 500, plate 600, light steel keel 601, first edge 610, second edge 620, third edge 630, fourth edge 640, fifth edge 650, square through hole 660, first inner support assembly 700, first inner mold 710. DETAILED DESCRIPTION

[0038] The present disclosure will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0039] For the simplicity of the drawings, only the parts related to the disclosure are shown in each drawing, and they do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown schematically, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0040] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in this disclosure can be understood according to the specific circumstances.

[0041] In this disclosure, unless otherwise explicitly specified and limited, "on" or "under" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation on the present disclosure.

[0043] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] As Figures 2-6 As shown in the figure, it shows a light steel keel punching forming device in an embodiment of the present disclosure, which is used for punching and forming a plate 600 into a light steel keel 601, as Figure 1As shown, the light steel keel 601 is square in cross section, having a first side 610, a second side 620, a third side 630, a fourth side 640 and a fifth side 650 connected in turn, the first side 610 and the second side 620 are connected vertically, the second side 620 and the third side 630 are connected vertically, the fourth side 640 and the fifth side 650 are arranged in the same plane, the third side 630 and the fourth side 640 are connected vertically, the first side 610 and the fifth side 650 are connected vertically, and the second side 620 and the fourth side 640 each have a plurality of square through holes 660 arranged in turn.

[0045] The light steel keel punching forming device comprises a punching member 100, a first bending assembly 200, a second inner support assembly 300 and a second bending assembly 400. The punching member 100 is movably arranged and can punch out square through holes 660 on the plate 600 after moving; the first bending assembly 200 is arranged on one side of the punching member 100 and is used for bending out the first side 610 and the second side 620 perpendicular to each other, and the second side 620 and the third side 630 perpendicular to each other; the second inner support assembly 300 is arranged on one side of the first bending assembly 200 and can pass through the square through hole 660 on the first side 610 and abut against the inner wall of the third side 630, and can also pass through the square through hole 660 on the third side 630 and abut against the inner wall of the first side 610; the second bending assembly 400 is arranged on one side of the second inner support assembly 300 and is used for bending out the first side 610 and the fifth side 650 perpendicular to each other, and the third side 630 and the fourth side 640 perpendicular to each other.

[0046] For example, the punching member 100 mainly consists of a punch, a punch fixing plate, a guide column and a driving device. The punch has high hardness to ensure sufficient strength during punching. The shape of the punch is square, which is suitable in size with the square through hole 660 on the light steel keel 601. The punch fixing plate is used to fix the punch, the guide column is installed at the four corners of the punch fixing plate and cooperates with the guide sleeve installed on the workbench to ensure the perpendicularity and stability of the punch during punching. The driving device selects a hydraulic cylinder which can provide sufficient pressure to push the punch to punch the plate 600.

[0047] The first bending assembly 200 can bend the first side 610 and the second side 620 of the light steel keel 601 and the bending part of the second side 620 and the third side 630 to adapt, and can process a 90° bending angle. The bending driving device selects a hydraulic machine which can provide sufficient pressure to make the plate bend and form between the molds.

[0048] When the plate 600 moves to the position of the first bending assembly 200 after punching, the hydraulic machine drives the first bending assembly 200 to apply pressure to the plate, so that the plate bends at a specific position to form the first side 610 and the second side 620 perpendicular to each other, and the second side 620 and the third side 630 perpendicular to each other.

[0049] The second inner support assembly 300 can play a supporting role when abutting against the inner wall of the light steel keel 601, thereby ensuring the realization of the bending. When the light steel keel 601 moves to the position of the second inner support assembly 300, the second inner support assembly 300 passes through the square through hole 660 on the first edge 610 or the third edge 630, and the support block abuts against the inner wall of the third edge 630 or the first edge 610, thereby providing internal support for the subsequent bending operation and ensuring the structural stability of the light steel keel 601 during the bending process.

[0050] The second bending assembly 400 can bend the first edge 610 and the fifth edge 650, and the third edge 630 and the fourth edge 640 of the light steel keel 601, and can process a bending angle of 90°. The bending driving device is selected to be a hydraulic machine, which can provide sufficient pressure to make the plate material bend and form between the molds.

[0051] After the second inner support assembly 300 supports the inside, the second bending assembly 400 acts on the plate material to bend the first edge 610 and the fifth edge 650, and the third edge 630 and the fourth edge 640, which are perpendicular to each other, and finally forms the light steel keel 601 with a square cross section.

[0052] The plate material 600 is sent to below the punching member 100, and the punching member 100 moves downward to punch out the square through hole 660 on the plate material 600. By controlling the moving position of the punching member 100, a plurality of square through holes arranged in sequence can be punched out on the plate material according to the design requirements.

[0053] The punched plate material 600 is moved to the position of the first bending assembly 200. The first bending assembly 200 acts to apply pressure to the plate material, and according to the shape of the mold, the first edge 610 and the second edge 620, and the second edge 620 and the third edge 630, which are perpendicular to each other, are bent to preliminarily form part of the structure of the light steel keel 601.

[0054] The light steel keel 601 after the first bending is moved to the position of the second inner support assembly 300. The second inner support assembly 300 passes through the square through hole 660 on the first edge 610 or the third edge 630 and abuts against the corresponding inner wall, thereby providing internal support for the subsequent bending operation and preventing the light steel keel 601 from deforming during the bending process.

[0055] The light steel keel 601 supported by the inner support is simultaneously positioned at the second bending assembly 400. The second bending assembly 400 applies pressure to the plate material to bend the first edge 610 and the fifth edge 650, and the third edge 630 and the fourth edge 640, which are perpendicular to each other, thereby completing the overall forming of the light steel keel and finally forming the light steel keel product with a square cross section, which is output by the discharging mechanism.

[0056] By punching the light steel keel 601 into a square cross-section structure, compared with the traditional channel type product, the structural strength of the light steel keel is greatly improved, meeting the increasing requirements of buildings on structural stability.

[0057] The device realizes the integrated forming from the plate 600 to the light steel keel 601 through the cooperation of multiple components such as punching, bending, and internal support, optimizes the production process, and improves the production efficiency.

[0058] In some examples, a mobile clamping table 500 is further included for clamping the plate 600, and is movably arranged to pass through the punching station, the first bending station, and the second bending station in sequence after moving. The punching piece 100 is located at the punching station, the first bending assembly 200 is located at the first bending station, and the second internal support assembly 300 and the second bending assembly 400 are both located at the second bending station and are oppositely arranged, respectively at both sides of the mobile clamping table 500.

[0059] For example, the mobile clamping table 500 mainly consists of a clamping plate, a sliding rail, a sliding block, a driving motor, and a screw rod. The clamping plate is made of high-strength steel plate and can stably clamp the plate. The clamping mechanism includes two clamping plates, which are driven by a cylinder to realize clamping and loosening actions. When the cylinder extends, the two clamping plates approach each other to clamp the plate; when the cylinder retracts, the clamping plates loosen the plate.

[0060] The punching piece 100 is installed above the punching station, and its punch is aligned with the punching position of the plate 600 on the mobile clamping table 500. The guide rail of the punching piece is parallel to the sliding rail of the mobile clamping table, ensuring that the punching piece can accurately punch the plate during movement.

[0061] The first bending assembly 200 is installed at the first bending station, and when the mobile clamping table 500 moves to the first bending station, the plate is accurately positioned between the dies of the first bending assembly to realize bending operation.

[0062] The second internal support assembly 300 and the second bending assembly 400 are oppositely arranged at both sides of the second bending station and are respectively located at both sides of the mobile clamping table 500. The second internal support assembly 300 can horizontally extend through the square through hole of the plate on the mobile clamping table and abut against the inner wall of the light steel keel 601. The die position of the second bending assembly 400 cooperates with the mobile clamping table to perform the final bending forming on the plate after the internal support is completed.

[0063] Place the plate 600 between the two clamping plates of the mobile clamping table 500, and extend the cylinder of the clamping mechanism to clamp the plate with the clamping plates.

[0064] When punching, the moving clamp table 500 transports the plate to the punching station, the driving device of the punching part 100 pushes the punch downward to punch out a square through hole 660 on the plate 600. After punching, the moving clamp table continues to move and transports the punched plate to the first bending station.

[0065] During the first bending process, when the moving clamp table 500 moves to the first bending station, the hydraulic machine of the first bending assembly 200 drives the first bending assembly 200 to apply pressure to the plate to bend out the first edge 610 and the second edge 620 perpendicular to each other, and the second edge 620 and the third edge 630. After bending, the moving clamp table moves the preliminarily bent plate to the second bending station.

[0066] During the inner support and second bending process, after the moving clamp table 500 reaches the second bending station, the second inner support assembly 300 passes through the square through hole on the plate, and the support block abuts against the inner wall of the light steel keel 601 to provide internal support for the second bending. Subsequently, the second bending assembly 400 acts to bend out the first edge 610 and the fifth edge 650 perpendicular to each other, and the third edge 630 and the fourth edge 640, completing the forming of the light steel keel 601. Finally, the moving clamp table transports the formed light steel keel to the discharge position, the clamping mechanism is released, and the light steel keel is output by the discharge mechanism.

[0067] The moving clamp table 500 can accurately transport the plate 600 to each station, ensuring the accuracy of the processing position, reducing the manual positioning error, and improving the production efficiency and product quality. At the same time, the continuous movement of the clamp table makes the production process more smooth, shortening the production cycle. The stations are reasonably arranged according to the movement path of the moving clamp table, so that the punching, bending and inner support operations can be carried out in an orderly manner, and the cooperation between the assemblies is more closely, further improving the working efficiency and stability of the entire punching forming device.

[0068] In some examples, a first inner support assembly 700 is further included, which is arranged at the first bending station and includes a first inner mold 710 that is movably arranged and can press on the plate 600 at the corresponding position of the second edge 620 after moving.

[0069] For example, the shape of the first inner mold 710 is matched with the shape of the inner surface of the second edge 620, and the length and width thereof are designed according to the size of the light steel keel. The first inner mold 710 is movably arranged through a linear slide rail and a sliding block. The linear slide rail is fixedly installed on the workbench, and the sliding block is connected to the bottom of the first inner mold and has two numbers, which are respectively located at both ends of the first inner mold. The driving device is an electric push rod, one end of which is connected to the first inner mold through a connecting seat, and the other end is fixed on the workbench. By controlling the extension and retraction of the electric push rod, the first inner mold is driven to move along the linear slide rail.

[0070] When the mobile clamp table 500 transports the plate to the first bending station, the first inner die 710 of the first inner support assembly 700 is in the initial position. After the plate is in place, the first inner die is driven by the electric push rod to move along the linear slide to the plate until it is pressed on the plate as the corresponding part of the second edge 620. After the first inner die is pressed on the plate, the mobile clamp table continues to clamp the plate to ensure that the plate does not shift during the subsequent bending operation of the first bending assembly 200.

[0071] After the first inner die 710 is pressed on the plate, the first bending assembly 200 applies pressure to the plate, and the first inner die serves as internal support, making the bending process more stable and better shaping the first edge 610 and the second edge 620, which are perpendicular to each other, and the second edge 620 and the third edge 630.

[0072] When the mobile clamp table 500 transports the plate 600 to the first bending station, the control system sends a signal to start the first inner support assembly 700 to move the first inner die 710 towards the plate. When the first inner die moves to the predetermined position, the first inner die is accurately pressed on the plate as the corresponding part of the second edge 620.

[0073] After the first inner die 710 is pressed on the plate, the first bending assembly 200 is started to apply pressure to the plate. Due to the internal support of the first inner die, the plate can maintain a stable shape during the bending process, avoiding problems such as wrinkles and deformation. Under the action of pressure, the plate is successfully bent to form the first edge 610 and the second edge 620, which are perpendicular to each other, and the second edge 620 and the third edge 630.

[0074] After the bending is completed, the first inner die 710 is driven back to the initial position, preparing for the next stamping and forming. The mobile clamp table continues to transport the preliminarily bent plate to the second bending station for subsequent processing.

[0075] The first inner die 710 of the first inner support assembly 700 provides internal support during the bending process, effectively avoiding problems such as wrinkles and deformation of the plate during bending, improving the bending quality of the first edge 610, the second edge 620, and the third edge 630 of the light steel keel, and making the shape of the formed light steel keel more regular and the size more accurate.

[0076] Through the support of the first inner die 710 to the plate, the structure of the light steel keel during the bending process is more stable, which helps to improve the overall structural strength of the light steel keel and meet the requirements of building structure stability.

[0077] The cooperation of the first inner support assembly with the mobile clamp table and the first bending assembly further optimizes the production process, improves the production efficiency, and makes the entire light steel keel stamping and forming process more smooth and efficient.

[0078] In some examples, the first bending assembly 200 comprises a first pushing piece 210 and a third pushing piece 230, the first pushing piece 210 is arranged to move up and down, and has a first inclined pushing surface 211 and a second inclined pushing surface 212, which are respectively located on both sides of the first inner mold 710, and after the first pushing piece 210 moves up and down, it can push the first edge 610 and the third edge 630 on both sides of the second edge 620 of the plate 600; the second pushing piece 220 and the third pushing piece 230 are both arranged to move horizontally on the first pushing piece 210, and after moving, they can respectively penetrate the first inclined pushing surface 211 and the second inclined pushing surface 212, and after the second pushing piece 220 moves horizontally, it can push the first edge 610 to make the first edge 610 perpendicular to the second edge 620, and after the third pushing piece 230 moves horizontally, it can push the third edge 630 to make the third edge 630 perpendicular to the second edge 620.

[0079] For example, the first pushing piece 210 has a block-shaped structure as a whole, and has a first inclined pushing surface 211 and a second inclined pushing surface 212, and the included angles between the two inclined pushing surfaces and the horizontal plane are both 45°, which is beneficial to guide the plate bending.

[0080] The first pushing piece 210 is arranged to move up and down by a hydraulic oil cylinder. In order to ensure the verticality and stability of the first pushing piece, guide columns are installed on both sides of the first pushing piece, which cooperate with guide sleeves installed on both sides of the workbench.

[0081] The second pushing piece 220 and the third pushing piece 230 are similar in structure, and are arranged on the first pushing piece 210 to move horizontally by a linear guide rail and a sliding block, and the sliding block is fixedly connected with the second pushing piece and the third pushing piece.

[0082] The second pushing piece 220 and the third pushing piece 230 are respectively driven to move horizontally by an electric push rod. One end of the two electric push rods is connected with the second pushing piece 220 and the third pushing piece 230, and the other end is fixed on the first pushing piece 210. By controlling the extension and retraction of the electric push rod, the horizontal movement of the second pushing piece and the third pushing piece is realized, so that they can penetrate the first inclined pushing surface 211 and the second inclined pushing surface 212 respectively.

[0083] The first inclined pushing surface 211 and the second inclined pushing surface 212 of the first pushing piece 210 are respectively located on both sides of the first inner mold 710. When the first inner mold 710 moves to the corresponding position of the second edge 620 on the plate 600, the first pushing piece 210 starts to move up and down, and its inclined pushing surface gradually approaches the plate, preparing to push the plate to bend.

[0084] The moving clamping table 500 transports the plate to the first bending station and clamps it. During the descent of the first pushing piece 210, the first inclined pushing surface 211 and the second inclined pushing surface 212 push the plate to bend to both sides, preliminarily forming the bending trend of the first edge 610 and the third edge 630. Subsequently, the second pushing piece 220 and the third pushing piece 230 move horizontally, respectively pushing the first edge 610 and the third edge 630, so that they are perpendicular to the second edge 620, completing the precise bending operation.

[0085] When the moving clamping table 500 accurately transports the plate 600 to the first bending station and the first inner die 710 has been pressed on the plate to become the corresponding part of the second edge 620, the hydraulic cylinder drives the first pushing piece 210 to rise. As the first pushing piece 210 rises, the first inclined pushing surface 211 and the second inclined pushing surface 212 gradually contact and push the plate to bend to both sides, preliminarily forming the bending shape of the first edge 610 and the third edge 630 by using the angle of the inclined pushing surface. At this time, the included angle between the first edge 610 and the third edge 630 and the second edge 620 has not reached 90°, and they are not yet perpendicular.

[0086] After the first pushing piece 210 rises to a certain position, the control system starts the electric push rod of the second pushing piece 220 and the third pushing piece 230. The second pushing piece 220 moves horizontally, penetrating the first inclined pushing surface 211, and pushes the first edge 610 to make it reach the precise 90° perpendicular angle with the second edge 620. Similarly, the third pushing piece 230 moves horizontally, penetrating the second inclined pushing surface 212, and pushes the third edge 630 to also reach the precise 90° perpendicular angle with the second edge 620, thereby completing the precise bending of the first edge 610, the second edge 620, and the third edge 630.

[0087] After the bending is completed, the hydraulic cylinder drives the first pushing piece 210 to descend back to the initial position, while the electric push rod of the second pushing piece 220 and the third pushing piece 230 retracts, so that the second pushing piece and the third pushing piece return to the initial position, ready for the next bending operation. The moving clamping table 500 transports the preliminarily bent plate to the second bending station for subsequent processing.

[0088] Through the pre-bending of the inclined pushing surface of the first pushing piece 210 and the precise pushing of the second pushing piece 220 and the third pushing piece 230, the bending angle of the first edge 610, the second edge 620, and the third edge 630 of the light steel keel can be accurately controlled, improving the forming precision of the product and ensuring the structural accuracy of the light steel keel.

[0089] This step-by-step bending method makes the bending process more orderly and efficient, reduces the scrap rate that may be caused by the difficulty of one-time forming, and at the same time, the cooperative work of each component is close, which can quickly complete the bending operation and improve the overall production efficiency.

[0090] The precise bending angle ensures the structural stability of the light steel keel, thereby enhancing the overall structural strength of the light steel keel and meeting the high requirements of construction engineering on structural stability.

[0091] In some examples, the second inner support assembly 300 includes a second inner die 310 and a sliding die expander 320. The second inner die 310 is movably arranged at the second bending station and can pass through the square through hole 660 after movement and abut against the inner wall of the first side 610 or the third side 630. The sliding die expander 320 is obliquely arranged on the second inner die 310 and can slide to at least have an expanded die state and a retracted die state. In the retracted die state, the outer contour of the sliding die expander 320 and the second inner die 310 is smaller than the square through hole 660, so that the sliding die expander 320 and the second inner die 310 can pass through the square through hole 660 and abut against the inner wall of the first side 610 or the third side 630. In the expanded die state, the outer contour of the sliding die expander 320 and the second inner die 310 is larger than the square through hole 660 and can cover the upper and lower edges of the first side 610 and the third side 630.

[0092] For example, the second inner die 310 has a cuboid shape and is movably arranged by a linear guide rail and a sliding block. The sliding block is connected to the bottom of the second inner die 310 and has two ends located at two ends of the second inner die 310. The driving device is an electric push rod, one end of which is connected to the second inner die 310 through a connecting seat and the other end of which is fixed on the workbench. By controlling the extension and retraction of the electric push rod, the second inner die is driven to move along the linear guide rail, so that it can pass through the square through hole 660 and abut against the inner wall of the first side 610 or the third side 630.

[0093] The sliding die expander 320 is composed of two inclined die expansion plates and a connecting component. The die expansion plate has high hardness to ensure sufficient strength during die expansion. The inclination angle of the die expansion plate is 30°, which can ensure the die expansion effect and maintain stability during sliding. The two die expansion plates are connected together by the connecting component, which includes a guide rod. The guide rod is fixed at two ends of the two die expansion plates.

[0094] The second inner die 310 is provided with a sliding groove matching the inclination angle of the die expansion plate. The sliding die expander 320 is matched with the sliding groove through the guide rod and obliquely slides in the sliding groove, so as to switch between the expanded die state and the retracted die state.

[0095] After the second inner die 310 is moved into position and the sliding die expander 320 is expanded, the second bending assembly 400 starts to work. The sliding die expander covers the upper and lower edges of the first side 610 and the third side 630, providing stable internal support for the final bending of the second bending assembly, ensuring that the light steel keel will not deform during the bending process and ensuring the bending quality.

[0096] When the moving clamp table 500 delivers the light steel keel to the second bending station, the control system starts the electric push rod to drive the second inner mold 310 to move along the linear guide rail to the light steel keel. At this time, the sliding expansion mold piece 320 is in the mold closing state, and the outer contour of the sliding expansion mold piece 320 and the second inner mold 310 is smaller than the square through hole 660, which can smoothly pass through the square through hole and approach the inner wall of the first side 610 or the third side 630.

[0097] After the second inner mold 310 is moved to the position, the sliding expansion mold piece slides, which gradually expands, and the spring is compressed. When the sliding expansion mold piece 320 reaches the expansion mold state, the outer contour of the sliding expansion mold piece 320 and the second inner mold 310 is greater than the square through hole 660, and covers the upper and lower edges of the first side 610 and the upper and lower edges of the third side 630, providing stable internal support for subsequent bending operations.

[0098] After the second bending assembly 400 completes the bending operation, the sliding expansion mold piece 320 retreats, and the second inner mold 310 returns to the initial position along the linear guide rail, ready for the next inner support operation. The moving clamp table 500 delivers the formed light steel keel to the discharge position.

[0099] In some examples, the second inner support assembly 300 further includes an elastic member 330, one end of the elastic member 330 acting on the second inner mold 310, and the other end acting on the sliding expansion mold piece 320, providing a force for the sliding expansion mold piece 320 to remain in the mold closing state.

[0100] In some examples, the sliding expansion mold piece 320 has an abutting portion 321 capable of abutting the inner wall of the first side 610 or the third side 630 and pushing the sliding expansion mold piece 320 from the mold closing state to the expansion mold state; the second inner mold 310 has a limiting stop portion 311, which abuts with the limiting stop portion 311 when the sliding expansion mold piece 320 slides to the expansion mold state.

[0101] For example, the elastic member 330 can be a compression spring, which can provide a stable contraction force for the sliding expansion mold piece 320. One end of the spring abuts on the second inner mold 310, and the other end abuts with the sliding expansion mold piece 320.

[0102] The abutting portion 321 of the sliding expansion mold piece 320 is located at the end of the sliding expansion mold piece 320, which can be attached to the inner wall of the light steel keel and uniformly transmit the force.

[0103] The limiting stop portion 311 is a protruding structure provided on the second inner mold 310, which is designed at the end point of the expansion mold stroke of the sliding expansion mold piece. When the sliding expansion mold piece 320 slides to the expansion mold state, it abuts on the limiting stop portion 311, limiting further sliding, and ensuring the stability of the expansion mold state.

[0104] In the initial state, the elastic member 330 is in a compressed state, providing an inwardly retracting force to the sliding expansion die 320, so that it remains in the die retraction state. At this time, the outer contour of the sliding expansion die 320 and the second inner die 310 is smaller than the square through hole 660, facilitating the second inner die to pass through the square through hole.

[0105] When the second inner die 310 passes through the square through hole and approaches the inner wall of the first side 610 or the third side 630, the abutting portion 321 of the sliding expansion die 320 comes into contact with the inner wall of the light steel keel. As the second inner die continues to move, the reaction force generated by the inner wall of the light steel keel on the abutting portion overcomes the elastic force of the elastic member 330, pushing the sliding expansion die 320 to slide obliquely in the sliding groove of the second inner die 310, gradually changing from the die retraction state to the die expansion state.

[0106] During the die expansion process of the sliding expansion die 320, when it slides to a certain position, its end portion abuts against the limiting stop portion 311 of the second inner die 310. The limiting stop portion 311 prevents the sliding expansion die from continuing to slide, so that it remains in the die expansion state. At this time, the outer contour of the sliding expansion die 320 and the second inner die 310 is larger than the square through hole 660, and covers the upper and lower edges of the first side 610 and the third side 630, providing stable internal support for the bending of the light steel keel.

[0107] When the bending of the light steel keel is completed, the second inner die 310 begins to withdraw. As the second inner die comes out of contact with the inner wall of the light steel keel, the elastic force of the elastic member 330 causes the sliding expansion die 320 to slide reversely along the sliding groove, returning to the die retraction state, ready for the next inner support operation.

[0108] The provision of the elastic member 330 enables the sliding expansion die 320 to stably switch between the die retraction and die expansion states. In the die retraction state, the force provided by the elastic member ensures that the sliding expansion die will not accidentally expand, facilitating the second inner die to pass through the square through hole; in the die expansion state, the abutting force of the inner wall of the light steel keel can overcome the elastic force of the elastic member, achieving die expansion, and the limiting stop portion ensures the stability of the die expansion state, improving the reliability of the inner support process.

[0109] Through the cooperation of the elastic member 330 and the limiting stop portion 311, the control process of the sliding expansion die is simplified, the complex mechanical or electrical control structure is reduced, the failure rate of the equipment is reduced, and the overall operation efficiency of the equipment is improved.

[0110] In some examples, the moving clamp table 500 can be arranged to be lifted and rotated, and before rotation, the second bending assembly 400 and the second inner support assembly 300 can bend the fifth side 650 and the first side 610 perpendicular to each other, and after rotation, the second bending assembly 400 and the second inner support assembly 300 can bend the fourth side 640 and the third side 630 perpendicular to each other.

[0111] For example, the lifting function of the mobile clamp table 500 is realized by a hydraulic lifting column, which is installed below the workbench and fixedly connected with the workbench. The bottom of the mobile clamp table 500 is connected with the piston rod of the hydraulic lifting column, realizing stable lifting. The rotating function is realized by a rotary motor and a rotary support. The rotary motor is a servo motor, which is connected with the inner ring of the rotary support. The outer ring of the rotary support is fixed on the workbench, and the inner ring is fixed with the bottom of the mobile clamp table, which can bear large axial and radial loads, ensuring the stability of the rotation of the mobile clamp table.

[0112] In the first stage of bending, the fifth edge 650 and the first edge 610 are bent. The mobile clamp table 500 transports the plate after punching and the first bending to the second bending station. At this time, the mobile clamp table is at the initial height and angle. The second inner die 310 of the second inner support assembly 300 passes through the square through hole 660, and the slide die expanding piece 320 expands the die to provide support for bending. The hydraulic machine of the second bending assembly 400 drives the upper die seat to move downward, and the plate is bent to the perpendicular fifth edge 650 and the first edge 610.

[0113] After the bending of the fifth edge 650 and the first edge 610 is completed, the mobile clamp table 500 is lowered by a certain height to avoid interference with other components during rotation. Then the rotary motor drives the mobile clamp table 500 to rotate 90° around the central axis of the rotary support to meet the bending requirements of the fourth edge and the third edge. After rotation, the hydraulic lifting column lowers the mobile clamp table to the appropriate height, preparing for the next bending.

[0114] In the second stage of bending, the fourth edge 640 and the third edge 630 are bent. After the mobile clamp table 500 is rotated into position and the height is adjusted, the second inner support assembly 300 works again. The second inner die 310 passes through the square through hole 660 again, and the slide die expanding piece 320 expands the die again to provide support for bending. The hydraulic machine of the second bending assembly 400 drives the upper die seat to move downward again, and the plate is bent to the perpendicular fourth edge 640 and third edge 630, completing the overall forming of the light steel keel.

[0115] The lifting and rotating functions of the mobile clamp table 500 make the bending process of the light steel keel more compact and efficient. Through one-time feeding, the bending of multiple edges is completed at the same station, reducing the carrying and positioning time of the plate between different stations, and improving the overall production efficiency. This design optimizes the spatial layout of the equipment, reduces the space occupation caused by multiple independent bending stations, and makes the entire light steel keel punching forming device more compact, facilitating the planning of the production site and the maintenance of the equipment.

[0116] In some examples, the second inner support assembly 300 is arranged in sequence and corresponds to the number of square through holes 660. For example, multiple second inner support assemblies 300 can more comprehensively cover the inner walls of the first edge 610 and the third edge 630, and the second bending assembly 400 can perform the bending operation when the multiple second inner support assemblies 300 provide stable support. The multiple second inner support assemblies 300 are arranged corresponding to the square through holes 660, which can provide more uniform and stable internal support during the light steel keel bending process. Each inner support assembly supports the corresponding position respectively, effectively preventing local deformation of the light steel keel during bending, and ensuring the overall structural stability and bending precision of the light steel keel.

[0117] Uniform and stable support enables the second bending assembly 400 to perform bending operations more accurately, reduces bending defects caused by uneven support, improves the production quality of light steel keels, and meets the high-precision requirements of building engineering for light steel keels.

[0118] The embodiment also proposes a forming method for processing the plate 600 into a light steel keel by using a light steel keel punching forming device, which includes the following steps:

[0119] S1: Punching step

[0120] The operator places the plate 600 on the movable clamping table 500, and the movable clamping table 500 clamps the plate. Then, the movable clamping table 500 is driven to stably convey the plate to the punching station along the slide rail.

[0121] When the plate reaches the punching station, the driving device of the punching piece 100 pushes the punch downward to punch out two rows of square through holes 660 on the plate. After the punching is completed, the movable clamping table continues to convey the punched plate to the first bending station.

[0122] S2: First bending step

[0123] When the punched plate reaches the first bending station, the first inner support assembly 700 starts to work, and the first inner mold 710 moves towards the plate. When the first inner mold 710 moves to the predetermined position, it is pressed on the plate as the corresponding part of the second edge 620 to provide internal support for the subsequent bending operation.

[0124] After the first inner die 710 is in place, the hydraulic cylinder of the first bending assembly 200 drives the first push piece 210 to descend. The first inclined push surface 211 and the second inclined push surface 212 of the first push piece are located on both sides of the first inner die respectively. As the first push piece descends, the inclined push surfaces gradually contact and push the plate to bend to both sides, preliminarily forming the bending trend of the first edge 610 and the third edge 630. At this time, the first edge 610 and the second edge 620, and the third edge 630 and the second edge 620 have not reached 90°, and have not yet been perpendicular. Then, the control system starts the electric push rod of the second push piece 220 and the third push piece 230. The second push piece 220 moves horizontally, penetrates through the first inclined push surface 211, and pushes the first edge 610, so that the first edge 610 and the second edge 620 reach an accurate 90° perpendicular angle. Similarly, the third push piece moves horizontally, penetrates through the second inclined push surface 212, and pushes the third edge 630, so that the third edge 630 and the second edge 620 also reach an accurate 90° perpendicular angle, thereby completing the accurate bending of the first edge 610, the second edge 620 and the third edge 630. After the bending is completed, the first inner die returns to the initial position under the drive of the electric push rod, and the moving clamping table transports the preliminarily bent plate to the second bending station.

[0125] S3: Fifth edge bending step

[0126] The moving clamping table 500 transports the plate subjected to the first bending to the second bending station. At this time, the plurality of second inner support assemblies 300 are in the initial position, and the sliding die expanding piece 320 is in the die closing state. The control system starts the electric push rod to drive the plurality of second inner dies 310 to simultaneously move towards the plate along the straight line guide rail. Since the sliding die expanding piece 320 remains in the die closing state under the action of the elastic piece 330, the outer contour of the second inner die 310 and the sliding die expanding piece 320 is smaller than the square through hole 660, and can smoothly pass through the square through hole. When the second inner die 310 passes through the square through hole and approaches the inner wall of the first edge 610, the abutting portion 321 of the sliding die expanding piece contacts the inner wall of the first edge. As the second inner die 310 continues to move, the reaction force generated by the inner wall of the light steel keel on the abutting portion 321 overcomes the elastic force of the elastic piece, and pushes the sliding die expanding piece 320 to slide and incline in the sliding groove of the second inner die 310, and gradually changes from the die closing state to the die expanding state. When the sliding die expanding piece slides to the die expanding state, it abuts against the limiting stop portion 311 of the second inner die 310. At this time, the outer contour of the sliding die expanding piece and the second inner die is larger than the square through hole, and covers the upper and lower edges of the first edge 610, thereby providing stable internal support for bending.

[0127] When the second inner support assembly 300 is supporting, the hydraulic machine of the second bending assembly 400 drives the second bending assembly 400 to move horizontally, and exerts pressure on the plate to bend the first edge 610 and the fifth edge 650 which are perpendicular to each other. During the bending process, the internal support provided by the second inner support assembly 300 ensures that the light steel keel does not deform during bending, thereby ensuring the bending quality. After the bending is completed, the small hydraulic cylinder drives the sliding die expander to retract to the die closing state, and the electric push rod drives the second inner die to return to the initial position.

[0128] S4: fourth edge bending step

[0129] After the bending of the first edge 610 and the fifth edge 650 is completed, the moving clamp table 500 is lowered by a certain height to avoid interference with other components during rotation. Then the rotating motor drives the moving clamp table to rotate 180° around the central axis of the rotating support. After rotation, the hydraulic lifting column lifts the moving clamp table to the appropriate height. At this time, the plurality of second inner support assemblies 300 work again, the electric push rod drives the second inner die 310 to pass through the square through hole and approach the inner wall of the third edge 630, and the sliding die expander expands the die again to provide support for bending.

[0130] After the second inner support assembly 300 is ready, the hydraulic machine of the second bending assembly 400 bends the plate to form the third edge 630 and the fourth edge 640 which are perpendicular to each other. At this time, the square light steel keel is formed, the moving clamp table transports the formed light steel keel to the discharge position, the clamp mechanism is loosened, and the light steel keel is output by the discharge mechanism.

[0131] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be covered in the scope of the claims of the present disclosure.

Claims

1. A light steel keel stamping and forming device, characterized in that, include: A punched part (100), wherein the punched part (100) is movable; A first bending assembly (200) is disposed on one side of the punched part (100); The second inner support assembly (300) is disposed on one side of the first bending assembly (200), is movably disposed and configured to pass through the square through hole (660) and abut against the inner wall of the third side (630) or the first side (610) after being moved. The second bending assembly (400) is disposed on one side of the second inner support assembly (300); A movable clamping table (500) is used to clamp the sheet metal (600) and is movable. After moving, it passes through the punching station, the first bending station and the second bending station in sequence. The punching part (100) is located at the punching station. The first bending assembly (200) is located at the first bending station. The second inner support assembly (300) and the second bending assembly (400) are both located at the second bending station and are arranged opposite to each other, respectively located on both sides of the movable clamping table (500). The second inner support assembly (300) includes: The second inner mold (310) is movably disposed at the second bending station. After being moved, it can pass through the square through hole (660) and approach the inner wall of the first side (610) or the third side (630). A sliding expansion member (320) is obliquely slidably disposed on the second inner mold (310), and the sliding allows for at least an expansion state and a retracted state. In the retracted state, the outer contours of the sliding expansion member (320) and the second inner mold (310) are smaller than the square through hole (660), so that they can pass through the square through hole (660) and abut against the inner wall of the first side (610) or the third side (630). In the expansion state, the outer contours of the sliding expansion member (320) and the second inner mold (310) are larger than the square through hole (660) and can cover the upper and lower edges of the first side (610) and the upper and lower edges of the third side (630). An elastic element (330) is provided, with one end acting on the second inner mold (310) and the other end acting on the sliding expansion member (320), providing a force to keep the sliding expansion member (320) in the mold-closed state; The sliding expansion member (320) has an abutment portion (321) that can abut against the inner wall of the first side (610) or the third side (630) and push the sliding expansion member (320) from the mold-shrinking state to the mold-expanding state; the second inner mold (310) has a limiting stop portion (311) that abuts against the limiting stop portion (311) when the sliding expansion member (320) slides into the mold-expanding state. The movable clamping table (500) is capable of being raised, lowered, and rotated. Before rotation, the second bending component (400) and the second inner support component (300) can bend out a fifth side (650) and a first side (610) that are perpendicular to each other. After rotation, the second bending component (400) and the second inner support component (300) can bend out a fourth side (640) and a third side (630) that are perpendicular to each other.

2. The light steel keel stamping and forming device according to claim 1, characterized in that, It also includes a first inner support assembly (700), which is disposed at the first bending station and includes: The first inner mold (710) is movable and can press on the plate (600) to become the corresponding part of the second side (620) after it is moved.

3. The light steel keel stamping and forming device according to claim 2, characterized in that, The first bending assembly (200) includes: The first pusher (210) is designed to move up and down, and has a first inclined push surface (211) and a second inclined push surface (212). The first inclined push surface (211) and the second inclined push surface (212) are located on both sides of the first inner mold (710). After the first pusher (210) moves up and down, it can push the plate (600) to fold out the first side (610) and the third side (630) on both sides of the second side (620). The second pusher (220) and the third pusher (230) are both horizontally movable on the first pusher (210), and after moving, they can pass through the first inclined push surface (211) and the second inclined push surface (212) respectively. After the second pusher (220) moves horizontally, it can push the first side (610) so that the first side (610) is perpendicular to the second side (620). After the third pusher (230) moves horizontally, it can push the third side (630) so that the third side (630) is perpendicular to the second side (620).

4. The light steel keel stamping and forming device according to claim 1, characterized in that, The second inner support component (300) consists of several arranged sequentially, and the number corresponds to the number of square through holes (660).

5. A forming method, wherein a light steel keel is formed by processing a sheet metal (600) into a light steel keel using the light steel keel stamping forming device according to any one of claims 1-4, characterized in that, Includes the following steps: S1. The sheet metal (600) is fed to the punching station on the moving clamping table (500), and the punching part (100) punches two rows of square through holes (660) on the sheet metal (600). S2. Continue to be sent to the first bending station, where the first bending assembly (200) bends out a first side (610) and a second side (620) that are perpendicular to each other, as well as a second side (620) and a third side (630) that are perpendicular to each other. S3. Continue to the second bending station, where the second bending assembly (400) bends out the first side (610) and the fifth side (650) that are perpendicular to each other. During bending, the second inner support assembly (300) passes through the square through hole (660) and supports the inner wall of the first side (610) from the inside. S4. While maintaining the second bending position, the moving clamping table (500) rotates 180°, and the second bending assembly (400) bends out the perpendicular third side (630) and fourth side (640). During bending, the second inner support assembly (300) passes through the square through hole (660) and supports the inner wall of the third side (630) from the inside, thereby obtaining a square light steel keel.

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