Light steel keel punch forming device and forming method

Abstract

The embodiment of the invention relates to the technical field of light steel joist machining equipment, and provides a light steel joist punch forming device and a forming method, the light steel joist punch forming device and the forming method are used for conducting punch forming on a plate to form a light steel joist, and the forming device comprises a punching part, a pressing part and a pressing part, the first bending assembly is arranged on one side of the punching piece; the second inner supporting assembly is arranged on one side of the first bending assembly, is movably arranged and is configured to penetrate through the square through hole and abut against the inner wall of the third edge or the first edge after moving; and the second bending assembly is arranged on one side of the second inner supporting assembly. By means of the technical scheme, the technical problem that in the prior art, the automation degree of light steel keel machining is relatively low is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of light steel keel processing equipment, specifically to a light steel keel stamping and forming apparatus and forming method. Background Technology

[0002] Light steel keel comes in various types, one of which is made from 600mm sheet metal, such as... Figure 1 The light steel keel 601 shown has a square cross-section and has a first side 610, a second side 620, a third side 630, a fourth side 640, and a fifth side 650 connected in sequence. The first side 610 is perpendicularly connected to the second side 620, the second side 620 is perpendicularly connected to the third side 630, the fourth side 640 and the fifth side 650 are coplanar, the third side 630 is perpendicularly connected to the fourth side 640, the first side 610 is perpendicularly connected to the fifth side 650, and both the second side 620 and the fourth side 640 have several square through holes 660 arranged in sequence. Figure 1 The light steel keel 601 shown is usually punched and bent using existing general processing equipment during processing. However, this processing method has a relatively low degree of automation, which affects production efficiency. Summary of the Invention

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

[0004] According to one aspect, at least one embodiment of the present disclosure provides a light steel keel stamping forming apparatus, comprising: The punched part is movable. A first bending assembly is disposed on one side of the punched part; The second inner support assembly is disposed on one side of the first bending assembly, is movable and configured to pass through the square through hole and abut against the inner wall of the third side or the first side after being moved. The second bending component is disposed on one side of the second inner support component.

[0005] For example, a light steel keel stamping forming apparatus provided in at least one embodiment of this disclosure further includes: A movable clamping table is used to clamp the sheet metal and is movable. After moving, it passes through a punching station, a first bending station, and a second bending station in sequence. The punching part is located at the punching station, the first bending assembly is located at the first bending station, and the second inner support assembly and the second bending assembly 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.

[0006] For example, at least one embodiment of this disclosure provides a light steel keel stamping forming apparatus, which further includes a first inner support assembly disposed at the first bending station, comprising: The first inner mold is movable and can press onto the plate to become the corresponding part of the second side after it is moved.

[0007] For example, at least one embodiment of this disclosure provides a light steel keel stamping forming apparatus, wherein the first bending component includes: The first pusher is configured to move up and down, and has a first inclined push surface and a second inclined push surface. The first inclined push surface and the second inclined push surface are respectively located on both sides of the first inner mold. After the first pusher moves up and down, it can push the plate to fold out the first side and the third side on both sides of the second side. The second pusher and the third pusher are both horizontally movable and disposed on the first pusher. After moving, they can respectively penetrate the first inclined push surface and the second inclined push surface. After the second pusher moves horizontally, it can push the first side so that the first side is perpendicular to the second side. After the third pusher moves horizontally, it can push the third side so that the third side is perpendicular to the second side.

[0008] For example, at least one embodiment of this disclosure provides a light steel keel stamping forming apparatus, wherein the second inner support assembly includes: The second inner mold is movable and set at the second bending station. After being moved, it can pass through the square through hole and approach the inner wall of the first side or the third side. A sliding mold expander is obliquely slidably disposed on the second inner mold, and the sliding allows for at least an expanded mold state and a retracted mold state. In the retracted mold state, the outer contours of the sliding mold expander and the second inner mold are smaller than the square through hole, thereby allowing it to pass through the square through hole and abut against the inner wall of the first or third side. In the expanded mold state, the outer contours of the sliding mold expander and the second inner mold are larger than the square through hole, and are able to cover the upper and lower edges of the first side and the upper and lower edges of the third side.

[0009] For example, at least one embodiment of this disclosure provides a light steel keel stamping forming apparatus, wherein the second inner support component further includes an elastic element, one end of which acts on the second inner mold and the other end of which acts on the sliding expansion member, providing a force to keep the sliding expansion member in a mold-closed state.

[0010] For example, at least one embodiment of this disclosure provides a light steel keel stamping forming device, wherein the sliding expansion member has an abutment portion that can abut against the inner wall of the first side or the third side and push the sliding expansion member from the mold closing state to the mold expanding state; the second inner mold has a limit stop portion that abuts against the limit stop portion when the sliding expansion member slides to the mold expanding state.

[0011] For example, at least one embodiment of this disclosure provides a light steel keel stamping and forming device, wherein the movable clamping table is capable of being raised, lowered and rotated, and before rotation, the second bending component and the second inner support component can bend out a fifth side and a first side that are perpendicular to each other, and after rotation, the second bending component and the second inner support component can bend out a fourth side and a third side that are perpendicular to each other.

[0012] For example, at least one embodiment of this disclosure provides a light steel keel stamping and forming device, wherein the second inner support component is a plurality of sequentially arranged components, and the number of the components corresponds to the number of square through holes.

[0013] According to another aspect, at least one embodiment of this disclosure provides a forming method for processing sheet metal into a light steel keel using the aforementioned light steel keel stamping forming apparatus, comprising the following steps: S1. The sheet metal is fed to the punching station on the moving clamping table, and the punching part punches two rows of square through holes in the sheet metal. S2. Continue to feed to the first bending station, where the first bending assembly bends out a first and second perpendicular side, as well as a second and third perpendicular side. S3. Continue to the second bending station, where the second bending assembly bends out the first and fifth sides that are perpendicular to each other. During bending, the second inner support assembly passes through the square through hole and supports the inner wall of the first side from the inside. S4. While maintaining the second bending position, move the clamping table to rotate 180°. The second bending assembly bends out the third and fourth sides that are perpendicular to each other. During bending, the second inner support assembly passes through the square through hole and supports the inner wall of the third side from the inside, thereby obtaining a square light steel keel.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the device achieves integrated molding from sheet metal to light steel keel through the coordinated work of multiple components such as punching, bending, and internal support, optimizing the production process, realizing automated production, and improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the sheet metal and light steel keel structure in this disclosure; Figure 2 This is a schematic diagram of the structure of a light steel keel stamping and forming device in one embodiment of the present disclosure; Figure 3 for Figure 1 A top view of the light steel keel stamping forming device in the embodiment; Figure 4 for Figure 3 Schematic diagram of the sectional structure of the middle AA section; Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB; Figure 6 for Figure 5 Schematic diagram of the structure of the second inner support component; In the figure: punching part 100, first bending assembly 200, first pusher 210, first inclined push surface 211, second inclined push surface 212, second pusher 220, third pusher 230, second inner support assembly 300, second inner mold 310, limiting stop 311, sliding expansion part 320, abutment part 321, elastic part 330, second bending assembly 400, movable clamping table 500, plate 600, light steel keel 601, first side 610, second side 620, third side 630, fourth side 640, fifth side 650, square through hole 660, first inner support assembly 700, first inner mold 710. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 2-6 As shown, it illustrates a light steel keel stamping and forming apparatus according to an embodiment of the present disclosure, used to stamp and form a sheet metal 600 into a light steel keel 601, as follows. Figure 1 As shown, the light steel keel 601 has a square cross-section and has a first side 610, a second side 620, a third side 630, a fourth side 640, and a fifth side 650 connected in sequence. The first side 610 is perpendicularly connected to the second side 620, the second side 620 is perpendicularly connected to the third side 630, the fourth side 640 and the fifth side 650 are coplanar, the third side 630 is perpendicularly connected to the fourth side 640, the first side 610 is perpendicularly connected to the fifth side 650, and both the second side 620 and the fourth side 640 have several square through holes 660 arranged in sequence.

[0024] The light steel keel stamping and forming device includes a punching component 100, a first bending assembly 200, a second inner support assembly 300, and a second bending assembly 400. The punching component 100 is movable and can punch a square through hole 660 on the sheet 600 after being moved. The first bending assembly 200 is disposed on one side of the punching component 100 and is used to bend out a first side 610 and a second side 620 that are perpendicular to each other, as well as to bend out a second side 620 and a third side 630 that are perpendicular to each other. The second inner support assembly 300 is disposed 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, or it can 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 disposed on one side of the second inner support assembly 300 and is used to bend out a first side 610 and a fifth side 650 that are perpendicular to each other, as well as to bend out a third side 630 and a fourth side 640 that are perpendicular to each other.

[0025] For example, the punching part 100 mainly consists of a punch, a punch fixing plate, guide posts, and a drive device. The punch has high hardness to ensure sufficient strength during the stamping process. The punch is square in shape, matching the size of the square through hole 660 on the light steel keel 601. The punch fixing plate is used to fix the punch, and the guide posts are installed at the four corners of the punch fixing plate, cooperating with the guide sleeves installed on the worktable to ensure the perpendicularity and stability of the punch during the stamping process. The drive device is a hydraulic cylinder, which can provide sufficient pressure to push the punch to stamp the sheet metal 600.

[0026] The first bending assembly 200 can bend the first side 610 and the second side 620, the second side 620 and the third side 630 of the light steel keel 601 to match, and can process a bending angle of 90°. The bending drive device is a hydraulic press, which can provide sufficient pressure to bend the sheet metal into shape between the molds.

[0027] When the sheet 600 moves to the position of the first bending assembly 200 after being punched, the hydraulic press drives the first bending assembly 200 to apply pressure to the sheet, so that the sheet is bent at a specific position into 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.

[0028] The second inner support component 300 provides support when it abuts against the inner wall of the light steel keel 601, thus ensuring the bending is achieved. When the light steel keel 601 moves to the position of the second inner support component 300, the second inner support component 300 passes through the square through hole 660 on the first side 610 or the third side 630, and the support block abuts against the inner wall of the third side 630 or the first side 610, providing internal support for subsequent bending operations and ensuring the structural stability of the light steel keel 601 during the bending process.

[0029] The second bending assembly 400 can bend the first side 610 and the fifth side 650, the third side 630 and the fourth side 640 of the light steel keel 601, and can process a bending angle of 90°. The bending drive device is a hydraulic press, which can provide sufficient pressure to bend the sheet metal into shape between the molds.

[0030] After the second inner support assembly 300 supports the inner part, the second bending assembly 400 acts on the plate to bend out the first side 610 and the fifth side 650, as well as the third side 630 and the fourth side 640, which are perpendicular to each other, and finally form a light steel keel 601 with a square cross section.

[0031] The sheet metal 600 is fed to the bottom of the punching part 100. The punching part 100 moves downward and punches out square through holes 660 on the sheet metal 600. By controlling the moving position of the punching part 100, several square through holes arranged in sequence are punched out on the sheet metal according to the design requirements.

[0032] After punching, the sheet metal 600 moves to the position of the first bending assembly 200. The first bending assembly 200 operates, applying pressure to the sheet metal and bending out the first side 610 and the second side 620, as well as the second side 620 and the third side 630, which are perpendicular to each other, according to the shape of the mold, thus initially forming part of the structure of the light steel keel 601.

[0033] After the first bend, 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 side 610 or the third side 630 and abuts against the corresponding inner wall, providing internal support for subsequent bending operations and preventing the light steel keel 601 from deforming during the bending process.

[0034] The internally supported light steel keel 601 is simultaneously positioned at the second bending component 400. The second bending component 400 applies pressure to the plate, bending out the first side 610 and the fifth side 650, as well as the third side 630 and the fourth side 640, which are perpendicular to each other, thus completing the overall forming of the light steel keel and finally forming a light steel keel product with a square cross section, which is output by the unloading mechanism.

[0035] By stamping the 601 light steel keel into a square cross-section structure, the structural strength of the light steel keel is greatly improved compared with the traditional channel-shaped product, meeting the increasingly higher requirements of buildings for structural stability.

[0036] This device achieves integrated molding from sheet metal 600 to light steel keel 601 through the coordinated work of multiple components such as punching, bending, and internal support, optimizing the production process and improving production efficiency.

[0037] In some examples, a movable clamping table 500 is also included. The 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, and 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.

[0038] For example, the movable clamping table 500 mainly consists of clamping plates, slide rails, sliders, drive motors, and lead screws. The clamping plates are made of high-strength steel plates, which can stably clamp the plates. The clamping mechanism includes two clamping plates, which are driven by cylinders to achieve clamping and releasing actions. When the cylinder extends, the two clamping plates move closer together to clamp the plates; when the cylinder retracts, the clamping plates release the plates.

[0039] The punching component 100 is installed above the punching station, with its punch aligned with the punching position of the sheet metal 600 on the movable clamping table 500. The guide rail of the punching component is parallel to the slide rail of the movable clamping table, ensuring that the punching component can accurately punch the sheet metal during movement.

[0040] The first bending assembly 200 is installed at the first bending station. When the moving clamping table 500 moves to the first bending station, the sheet metal is accurately positioned between the molds of the first bending assembly to achieve the bending operation.

[0041] The second inner support assembly 300 and the second bending assembly 400 are positioned opposite each other on both sides of the second bending station, located on either side of the movable clamping table 500. The second inner support assembly 300 can extend horizontally, passing through the square through hole in the sheet metal on the movable clamping table and abutting against the inner wall of the light steel keel 601. The mold position of the second bending assembly 400 cooperates with the movable clamping table, and after the inner support is completed, the sheet metal is finally bent and formed.

[0042] The sheet material 600 is placed between the two clamping plates of the movable clamping table 500. The cylinder of the clamping mechanism extends to clamp the sheet material.

[0043] During punching, the movable clamping table 500 transports the sheet metal to the punching station, and the driving device of the punching part 100 pushes the punch downward to punch a square through hole 660 in the sheet metal 600. After punching is completed, the movable clamping table continues to move, transporting the punched sheet metal to the first bending station.

[0044] During the first bending process, when the movable clamping table 500 moves to the first bending station, the hydraulic press of the first bending assembly 200 drives the first bending assembly 200 to apply pressure to the sheet metal, bending out the first perpendicular side 610 and the second side 620, as well as the second side 620 and the third side 630. After the bending is completed, the movable clamping table moves the initially bent sheet metal to the second bending station.

[0045] During the internal support and second bending process, after the moving clamping table 500 reaches the second bending station, the second internal support assembly 300 passes through the square through hole in the plate, and the support block abuts against the inner wall of the light steel keel 601, providing internal support for the second bending. Subsequently, the second bending assembly 400 operates to bend out the mutually perpendicular first side 610 and fifth side 650, as well as the third side 630 and fourth side 640, completing the forming of the light steel keel 601. Finally, the moving clamping table transports the formed light steel keel to the discharge position, the clamping mechanism releases, and the light steel keel is output by the discharge mechanism.

[0046] The movable clamping table 500 accurately transports the sheet metal 600 to each workstation, ensuring accurate processing positioning, reducing manual positioning errors, and improving production efficiency and product quality. Simultaneously, the continuous movement of the clamping table makes the production process smoother and shortens the production cycle. The workstations are rationally arranged according to the moving path of the clamping table, allowing operations such as punching, bending, and internal support to be performed in an orderly manner. The closer collaboration between components further enhances the working efficiency and stability of the entire stamping and forming device.

[0047] In some examples, a first inner support assembly 700 is also included, which is disposed at the first bending station and includes a first inner mold 710. 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 being moved.

[0048] For example, the shape of the first inner mold 710 is adapted to the inner surface shape of the second side 620, and its length and width are designed according to the dimensions of the light steel keel. The first inner mold 710 is moved via a linear slide rail and sliders. The linear slide rail is fixedly installed on the worktable, and two sliders are connected to the bottom of the first inner mold, located at opposite 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 via a connecting seat, and the other end is fixed to the worktable. By controlling the extension and retraction of the electric push rod, the first inner mold is moved along the linear slide rail.

[0049] When the moving clamping table 500 transports the sheet metal to the first bending station, the first inner mold 710 of the first inner support assembly 700 is in its initial position. Once the sheet metal is in place, the first inner mold, driven by an electric push rod, moves along a linear guide rail towards the sheet metal until it presses against the sheet metal, becoming the corresponding part of the second side 620. After the first inner mold presses against the sheet metal, the moving clamping table continues to clamp the sheet metal, ensuring that the sheet metal does not shift during the subsequent bending operation of the first bending assembly 200.

[0050] After the first inner mold 710 presses onto the sheet metal, the first bending component 200 applies pressure to the sheet metal. At the same time, the first inner mold acts as an internal support, making the bending process more stable and enabling better shaping of the mutually perpendicular first side 610 and second side 620, as well as the second side 620 and third side 630.

[0051] After the moving clamping table 500 transports the sheet metal 600 to the first bending station, the control system sends a signal to activate the first inner support assembly 700, which pushes the first inner mold 710 to move towards the sheet metal. When the first inner mold moves to the predetermined position, it accurately presses onto the sheet metal, becoming the corresponding part of the second side 620.

[0052] After the first inner mold 710 presses onto the sheet metal, the activation of the first bending assembly 200 applies pressure to the sheet metal. Due to the internal support of the first inner mold, the sheet metal can maintain a stable shape during the bending process, avoiding problems such as wrinkles and deformation. Under the pressure, the sheet metal is successfully bent to form mutually perpendicular first sides 610 and second sides 620, as well as second sides 620 and third sides 630.

[0053] After bending is completed, the first inner mold 710 is driven back to its initial position, preparing for the next stamping process. The moving clamping table continues to transport the initially bent sheet metal to the second bending station for further processing.

[0054] The first inner mold 710 of the first inner support component 700 provides internal support during the bending process, effectively avoiding problems such as wrinkles and deformation of the sheet metal during bending, improving the bending quality of the first side 610, the second side 620 and the third side 630 of the light steel keel, and making the formed light steel keel more regular in shape and more precise in size.

[0055] The support of the plate by the first inner mold 710 makes the structure of the light steel keel more stable during the bending process, which helps to improve the overall structural strength of the light steel keel and meet the requirements of building for structural stability.

[0056] The coordinated operation of the first inner support assembly, the moving clamping table, and the first bending assembly further optimizes the production process, improves production efficiency, and makes the entire light steel keel stamping process smoother and more efficient.

[0057] In some examples, the first bending assembly 200 includes a first pusher 210 and a third pusher 230. The first pusher 210 is vertically movable 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, respectively. After the first pusher 210 is vertically movable, 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 and disposed on the first pusher 210. After the movement, 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.

[0058] For example, the first pusher 210 has a block-shaped structure with a first inclined push surface 211 and a second inclined push surface 212. The angle between the two inclined push surfaces and the horizontal plane is 45°. This angle design is beneficial for guiding the bending of the sheet metal.

[0059] The first pusher 210 is lifted and moved by a hydraulic cylinder. To ensure the verticality and stability of the lifting of the first pusher, guide columns are installed on both sides of the first pusher, which cooperate with guide sleeves installed on both sides of the worktable.

[0060] The second pusher 220 and the third pusher 230 have similar structures and are mounted on the first pusher 210. They move horizontally via a linear guide rail and a slider, with the slider fixedly connected to the second and third pushers.

[0061] The second pusher 220 and the third pusher 230 are driven to move horizontally by electric push rods. One end of each electric push rod is connected to the second pusher 220 and the third pusher 230, and the other end is fixed to the first pusher 210. By controlling the extension and retraction of the electric push rods, the second and third pushers can move horizontally, allowing them to pass through the first inclined push surface 211 and the second inclined push surface 212, respectively.

[0062] The first inclined pushing surface 211 and the second inclined pushing surface 212 of the first pusher 210 are located on both sides of the first inner mold 710. After the first inner mold 710 moves onto the plate 600 and becomes the corresponding part of the second side 620, the first pusher 210 begins to rise and fall, and its inclined pushing surface gradually approaches the plate, preparing to push the plate to bend.

[0063] The movable clamping table 500 conveys the sheet metal to the first bending station and clamps it. During the descent of the first pusher 210, the first inclined push surface 211 and the second inclined push surface 212 push the sheet metal to bend to both sides, initially forming a bending trend of the first side 610 and the third side 630. Subsequently, the second pusher 220 and the third pusher 230 move horizontally, pushing the first side 610 and the third side 630 respectively, making them perpendicular to the second side 620, thus completing the precise bending operation.

[0064] Once the moving clamping table 500 accurately delivers the sheet metal 600 to the first bending station and the first inner mold 710 has pressed onto the sheet metal to form the corresponding part of the second side 620, the hydraulic cylinder drives the first pusher 210 to rise. As the first pusher 210 rises, the first inclined push surface 211 and the second inclined push surface 212 gradually contact and push the sheet metal to bend to both sides. The angle of the inclined push surfaces guides the sheet metal to initially form the bending shape of the first side 610 and the third side 630. At this time, the angle between the first side 610 and the third side 630 and the second side 620 has not reached 90° and is not yet perpendicular.

[0065] After the first pusher 210 rises to a certain position, the control system activates the electric push rods of the second pusher 220 and the third pusher 230. The second pusher 220 moves horizontally, passes through the first inclined push surface 211, and pushes the first side 610 to achieve a precise 90° perpendicular angle with the second side 620. Similarly, the third pusher 230 moves horizontally, passes through the second inclined push surface 212, and pushes the third side 630 to also achieve a precise 90° perpendicular angle with the second side 620, thereby completing the precise bending of the first side 610, the second side 620, and the third side 630.

[0066] After bending is completed, the hydraulic cylinder drives the first pusher 210 to descend back to its initial position. At the same time, the electric push rods of the second pusher 220 and the third pusher 230 retract, returning the second and third pushers to their initial positions, preparing for the next bending operation. The movable clamping table 500 then transports the initially bent sheet metal to the second bending station for further processing.

[0067] By pre-bending the light steel keel through the inclined pushing surface of the first pusher 210, and then precisely pushing it by the second pusher 220 and the third pusher 230, the bending angles of the first side 610, the second side 620 and the third side 630 can be precisely controlled, which improves the forming accuracy of the product and ensures the structural accuracy of the light steel keel.

[0068] This step-by-step bending method makes the bending process more orderly and efficient, reducing the scrap rate that may be caused by the difficulty of one-time forming. At the same time, the close cooperation of each component can quickly complete the bending operation and improve the overall production efficiency.

[0069] Precise bending angles ensure 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 building engineering for structural stability.

[0070] In some examples, the second inner support assembly 300 includes a second inner mold 310 and a sliding expansion member 320. 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. The sliding expansion member 320 is obliquely slidably disposed on the second inner mold 310, and the sliding allows for at least an expanded 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 expanded 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.

[0071] For example, the second inner mold 310 is rectangular in shape and is moved via a linear guide rail and sliders. Two sliders are connected to the bottom of the second inner mold 310, located at opposite ends. The driving device is an electric push rod, one end of which is connected to the second inner mold 310 via a connecting seat, and the other end is fixed to the worktable. By controlling the extension and retraction of the electric push rod, the second inner mold is moved along the linear guide rail, allowing it to pass through the square through hole 660 and approach the inner wall of either the first side 610 or the third side 630.

[0072] The sliding mold expander 320 consists of two inclined mold expander plates and a connecting component. The mold expander plates are highly rigid, ensuring sufficient strength during the mold expansion process. The inclination angle of the mold expander plates is 30°, a design that ensures both effective mold expansion and stability during sliding. The two mold expander plates are connected together by a connecting component, which includes guide rods. The guide rods are fixed at both ends to the two mold expander plates.

[0073] A groove matching the tilt angle of the expansion mold plate is provided on the second inner mold 310. The sliding expansion mold part 320 cooperates with the groove through the guide rod and slides tilted in the groove, which can realize the switching between the expansion mold state and the shrinking mold state.

[0074] After the second inner mold 310 moves into place and the sliding expansion member 320 expands the mold, the second bending assembly 400 begins to work. The sliding expansion member covers the upper and lower edges of the first side 610 and the third side 630, providing stable internal support for the second bending assembly to perform the final bending, ensuring that the light steel keel will not deform during the bending process and guaranteeing the bending quality.

[0075] After the moving clamping table 500 transports the light steel keel to the second bending station, the control system activates the electric push rod to drive the second inner mold 310 to move along the linear guide rail toward the light steel keel. At this time, the sliding expansion mold 320 is in the mold-retracting state, and its outer contour and that of the second inner mold 310 are smaller than the square through hole 660, allowing it to pass smoothly through the square through hole and approach the inner wall of the first side 610 or the third side 630.

[0076] After the second inner mold 310 moves into place, the sliding expansion component slides and gradually unfolds, compressing the spring. When the sliding expansion component 320 reaches the expanded state, its outer contour and that of the second inner mold 310 are larger than the square through hole 660, and it 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.

[0077] After the second bending assembly 400 completes the bending operation, the sliding expansion mold 320 retracts, and the second inner mold 310 returns to its initial position along the linear guide rail, preparing for the next inner support operation. The movable clamping table 500 then transports the formed light steel keel to the discharge position.

[0078] In some examples, the second inner support assembly 300 also includes an elastic element 330, one end of which acts on the second inner mold 310 and the other end of which acts on the sliding expansion member 320, providing a force to keep the sliding expansion member 320 in the mold-closed state.

[0079] In some examples, the sliding expansion member 320 has an abutment portion 321, which 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, which abuts against the limiting stop portion 311 when the sliding expansion member 320 slides into the mold-expanding state.

[0080] For example, the elastic element 330 can be a compression spring, which can provide a stable contraction force for the sliding expansion member 320. One end of the spring abuts against the second inner mold 310, and the other end abuts against the sliding expansion member 320.

[0081] The abutting part 321 of the sliding expansion member 320 is located at the end of the sliding expansion member 320, and can fit against the inner wall of the light steel keel to evenly transmit force.

[0082] The limiting stop 311 is a protrusion on the second inner mold 310, and its position is designed at the end of the expansion stroke of the sliding mold expander. When the sliding mold expander 320 slides to the expansion state, it abuts against the limiting stop 311 to restrict its further sliding and ensure the stability of the expansion state.

[0083] In the initial state, the elastic element 330 is in a compressed state, providing an inward contraction force to the sliding expansion element 320, keeping it in a closed state. At this time, the outer contours of the sliding expansion element 320 and the second inner mold 310 are smaller than the square through hole 660, facilitating the passage of the second inner mold through the square through hole.

[0084] When the second inner mold 310 passes through the square through hole and approaches the inner wall of the first side 610 or the third side 630, the abutment portion 321 of the sliding expansion member 320 contacts the inner wall of the light steel keel. As the second inner mold continues to move, the reaction force generated by the inner wall of the light steel keel on the abutment portion overcomes the elastic force of the elastic member 330, pushing the sliding expansion member 320 to slide tilted within the groove of the second inner mold 310, gradually changing from the mold-closing state to the mold-expanding state.

[0085] During the mold expansion process, when the sliding mold expander 320 slides to a certain position, its end abuts against the limiting stop 311 of the second inner mold 310. The limiting stop 311 prevents the sliding mold expander from sliding further, keeping it in the mold expansion state. At this time, the outer contours of the sliding mold expander 320 and the second inner mold 310 are larger than the square through hole 660, and cover 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 the bending of the light steel keel.

[0086] After the light steel keel fracture is completed, the second inner mold 310 begins to retract. As the second inner mold disengages from the inner wall of the light steel keel, the elastic force of the elastic element 330 causes the sliding expansion element 320 to slide in the opposite direction along the slide groove, returning to the mold-shrinking state, preparing for the next inner support operation.

[0087] The elastic element 330 enables the sliding mold expander 320 to stably switch between the mold closing and mold expanding states. In the mold closing state, the force provided by the elastic element ensures that the sliding mold expander will not expand accidentally, facilitating the passage of the second inner mold through the square through hole. During mold expansion, the abutting force of the inner wall of the light steel keel can overcome the elastic force of the elastic element, realizing mold expansion, and the limiting stop ensures the stability of the mold expansion state, improving the reliability of the internal support process.

[0088] The cooperation between the elastic element 330 and the limiting stop 311 simplifies the control process of the sliding expansion mold, reduces the complex mechanical or electrical control structure, lowers the equipment failure rate, facilitates equipment maintenance and upkeep, and improves the overall operating efficiency of the equipment.

[0089] In some examples, the movable clamping table 500 is capable of being raised, lowered, and rotated. Before rotation, the second bending assembly 400 and the second inner support assembly 300 are capable of bending out a fifth side 650 and a first side 610 that are perpendicular to each other. After rotation, the second bending assembly 400 and the second inner support assembly 300 are capable of bending out a fourth side 640 and a third side 630 that are perpendicular to each other.

[0090] For example, the lifting function of the movable clamping table 500 is achieved by a hydraulic lifting column, which is installed below the worktable and fixedly connected to it. The bottom of the movable clamping table 500 is connected to the piston rod of the hydraulic lifting column, enabling smooth lifting. The rotation function is achieved through a rotary motor and a slewing bearing. The rotary motor is a servo motor, connected to the inner ring of the slewing bearing. The outer ring of the slewing bearing is fixed to the worktable, and the inner ring is fixed to the bottom of the movable clamping table, capable of bearing large axial and radial loads and ensuring the stability of the movable clamping table's rotation.

[0091] In the first stage of bending, the fifth side 650 and the first side 610 are bent. The moving clamping table 500 transports the sheet metal, which has undergone punching and the first bend, to the second bending station. At this time, the moving clamping table is at its initial height and angle. The second inner mold 310 of the second inner support assembly 300 passes through the square through hole 660, and the sliding mold expander 320 expands the mold to provide support for bending. The hydraulic press of the second bending assembly 400 drives the upper mold base to move downward, bending the sheet metal to form the perpendicular fifth side 650 and the first side 610.

[0092] After completing the bending of the fifth side 650 and the first side 610, the movable clamping table 500 is lowered to a certain height to avoid interference with other components during rotation. Then, the rotary motor drives the movable clamping table 500 to rotate 90° around the central axis of the rotary support to meet the bending requirements of the fourth and third sides. After rotating into position, the hydraulic lifting column lowers the movable clamping table to a suitable height, ready for the next bending.

[0093] In the second stage of bending, the fourth side 640 and the third side 630 are bent. After the moving clamping table 500 rotates into place and adjusts its height, the second inner support assembly 300 works again. The second inner mold 310 re-passes through the square through hole 660, and the sliding mold expander 320 expands the mold again to provide support for bending. The hydraulic press of the second bending assembly 400 drives the upper mold base to move downward again, bending the sheet metal to form the perpendicular fourth side 640 and third side 630, completing the overall forming of the light steel keel.

[0094] The lifting and rotating functions of the 500-meter mobile clamping table make the bending process of light steel keel more compact and efficient. By loading material once, bending of multiple sides can be completed at the same station, reducing the time spent handling and positioning sheet metal between different stations and improving overall production efficiency. This design optimizes the spatial layout of the equipment, reducing the space occupied by multiple independent bending stations, making the entire light steel keel stamping and forming device more compact, and facilitating production site planning and equipment maintenance.

[0095] In some examples, several second inner support components 300 are arranged sequentially, corresponding to the number of square through holes 660. For instance, multiple second inner support components 300 can more comprehensively cover the inner walls of the first side 610 and the third side 630. With the multiple second inner support components 300 providing stable support, the second bending component 400 performs the bending operation. The multiple second inner support components 300, corresponding to the square through holes 660, can provide more uniform and stable internal support during the bending process of the light steel keel. Each inner support component provides support at its corresponding position, effectively preventing local deformation of the light steel keel during bending, and ensuring the overall structural stability and bending accuracy of the light steel keel.

[0096] Uniform and stable support enables the second bending component 400 to perform bending operations more precisely, reducing bending defects caused by uneven support, improving the production quality of light steel keel, and meeting the high precision requirements of construction projects for light steel keel.

[0097] This embodiment also proposes a forming method, which uses a light steel keel stamping forming device to process the sheet 600 into a light steel keel, including the following steps: S1: Punching Steps The operator places the sheet metal 600 on the movable clamping table 500, which clamps the sheet metal. Then, the movable clamping table 500 is driven to smoothly transport the sheet metal to the punching station along the slide rail.

[0098] When the sheet metal reaches the punching station, the driving device of the punching part 100 pushes the punch downward to punch two rows of square through holes 660 on the sheet metal. After punching is completed, the moving clamping table continues to transport the punched sheet metal to the first bending station.

[0099] S2: First bending step When the punched sheet reaches the first bending station, the first inner support assembly 700 starts to work, and the first inner mold 710 moves toward the sheet. When the first inner mold 710 moves to the predetermined position, it presses on the sheet to become the corresponding part of the second side 620, providing internal support for subsequent bending operations.

[0100] After the first inner mold 710 is in place, the hydraulic cylinder of the first bending assembly 200 drives the first pusher 210 to descend. The first inclined push surface 211 and the second inclined push surface 212 of the first pusher are located on both sides of the first inner mold, respectively. As the first pusher descends, the inclined push surfaces gradually contact and push the sheet metal to bend to both sides, initially forming a bending trend of the first side 610 and the third side 630. At this time, the first side 610 and the second side 620, as well as the third side 630 and the second side 620, have not reached 90° and are not yet perpendicular. Next, the control system activates the electric push rods of the second pusher 220 and the third pusher 230. The second pusher 220 moves horizontally, passes through the first inclined push surface 211, and pushes the first side 610 to achieve a precise 90° perpendicular angle with the second side 620. Similarly, the third pusher moves horizontally, penetrating the second inclined push surface 212, and pushing the third side 630 so that it also reaches a precise 90° perpendicular angle with the second side 620, thereby completing the precise bending of the first side 610, the second side 620, and the third side 630. After bending is completed, the first inner mold returns to its initial position under the drive of the electric push rod, and the moving clamping table transports the initially bent sheet metal to the second bending station.

[0101] S3: Fifth side bending steps The moving clamping table 500 transports the sheet metal after the first bend to the second bend station. At this time, multiple second inner support assemblies 300 are in their initial positions, and the sliding expansion member 320 is in the retracted state. The control system activates the electric push rod, driving multiple second inner molds 310 to move simultaneously along the linear guide towards the sheet metal. Because the sliding expansion member 320 is kept in the retracted state under the action of the elastic member 330, the outer contours of the second inner molds 310 and the sliding expansion member 320 are smaller than the square through hole 660, allowing them to pass smoothly through the square through hole. When the second inner mold 310 passes through the square through hole and approaches the inner wall of the first side 610, the abutment portion 321 of the sliding expansion member contacts the inner wall of the first side. As the second inner mold 310 continues to move, the reaction force generated by the inner wall of the light steel keel on the abutment portion 321 overcomes the elastic force of the elastic member, pushing the sliding expansion member 320 to slide tilted within the groove of the second inner mold 310, gradually changing from the retracted state to the expanded state. When the sliding expansion member slides to the expansion state, it abuts against the limiting stop 311 of the second inner mold 310. At this time, the outer contour of the sliding expansion member and the second inner mold is larger than the square through hole and covers the upper and lower edges of the first side 610, providing stable internal support for bending.

[0102] During the bending process, the hydraulic press of the second inner support assembly 300 drives the second bending assembly 400 to move horizontally, applying pressure to the sheet metal and bending it to form the first perpendicular side 610 and the fifth perpendicular side 650. The internal support provided by the second inner support assembly 300 ensures that the light steel keel does not deform during bending, guaranteeing the bending quality. After bending is complete, a small hydraulic cylinder drives the sliding expansion mold to retract to the mold-folding state, and an electric push rod drives the second inner mold back to its initial position.

[0103] S4: Steps for bending the fourth side After bending the first side 610 and the fifth side 650, the movable clamping table 500 lowers to a certain height to avoid interference with other components during rotation. Then, the rotary motor drives the movable clamping table to rotate 180° around the central axis of the rotary support. After rotation, the hydraulic lifting column raises the movable clamping table to the appropriate height. At this time, multiple second inner support assemblies 300 work again, and the electric push rod drives the second inner mold 310 through the square through hole and close to the inner wall of the third side 630. The sliding mold expander expands the mold again to provide support for bending.

[0104] After the second inner support component 300 is ready, the hydraulic press of the second bending component 400 folds the plate again to form the third side 630 and the fourth side 640, which are perpendicular to each other. At this point, the square light steel keel is formed. The moving clamping 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.

[0105] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this 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).

2. The light steel keel stamping and forming device according to claim 1, characterized in that, Also includes: 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).

3. The light steel keel stamping and forming device according to claim 2, 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.

4. The light steel keel stamping and forming device according to claim 3, 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).

5. The light steel keel stamping and forming device according to claim 2, characterized in that, 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), thus allowing them to 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).

6. The light steel keel stamping and forming device according to claim 5, characterized in that, The second inner support assembly (300) also includes an elastic element (330), one end of which acts on the second inner mold (310) and the other end of which acts on the sliding expansion member (320), providing a force to keep the sliding expansion member (320) in the mold-closed state.

7. The light steel keel stamping and forming device according to claim 6, characterized in that, The sliding expansion member (320) has an abutment portion (321), which 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), which abuts against the limiting stop portion (311) when the sliding expansion member (320) slides into the mold-expanding state.

8. The light steel keel stamping and forming device according to claim 7, characterized in that, 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.

9. The light steel keel stamping and forming device according to claim 7, characterized in that, The second inner support component (300) consists of several arranged sequentially, corresponding to the number of square through holes (660).

10. A forming method, comprising processing sheet metal (600) into a light steel keel using the light steel keel stamping forming apparatus according to any one of claims 1-9, 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.

Images