A W-shaped bending mechanism
By designing a W-shaped bending mechanism and utilizing the synergistic effect of the primary bending component and the secondary bending component, the problem of damage to the sheet metal during the W-shaped bending process is solved, achieving efficient W-shaped forming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAOJING ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-31
AI Technical Summary
When bending a sheet metal into a W shape, forming it in one go can easily damage the sheet metal, resulting in poor bending effect.
The W-shaped bending mechanism includes a primary bending assembly, a secondary bending assembly, and a positioning assembly. Through the coordinated action of multiple rotating flanges, support plates, bending frames, and cylinders, U-shaped and W-shaped bending operations are performed step by step, ensuring that the sheet metal is effectively supported and positioned during each bending process.
This effectively avoids the problem of damage to the sheet metal during W-shaped bending due to one-time forming, improves the bending effect, and ensures that the sheet metal can be stably formed into a W shape.
Smart Images

Figure CN224574437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flat plate bending machine technology, and in particular to a W-shaped bending mechanism. Background Technology
[0002] A bending machine is a machine capable of bending thin plates. Its main structure includes a support frame, a worktable, and a clamping plate. The worktable is placed on the support frame and consists of a base and a pressure plate. The base is connected to the clamping plate via a hinge. The base comprises a housing, a coil, and a cover plate. The coil is placed in a recess within the housing, and the top of the recess is covered by the cover plate. During operation, the coil is energized by a wire, generating an attractive force on the pressure plate, thus clamping the thin plate between the pressure plate and the base. Because electromagnetic clamping is used, the pressure plate can be made to meet various workpiece requirements, and workpieces with side walls can be processed. Operation is also very simple.
[0003] When bending a sheet metal into a W shape, forming it in one go can easily damage the sheet metal, resulting in poor bending effect. Utility Model Content
[0004] The purpose of this invention is to provide a W-shaped bending mechanism, which solves the problem that when bending a sheet metal in a W-shape, the sheet metal is easily damaged in one forming process, resulting in poor bending effect.
[0005] To achieve the above objectives, this utility model provides a W-shaped bending mechanism, including a frame, a primary bending assembly, a secondary bending assembly, and a positioning assembly. The primary bending assembly includes a support base, a rotating flange, a support plate, a bending frame, and gaskets. The support base is connected to the frame and is located in the middle of the frame. There are multiple rotating flanges, each rotatably connected to and passing through the support base. There are two support plates, each detachably connected to the rotating flange and located in the middle of the rotating flange. There are multiple bending frames, each fixedly connected to the support plate and located on the outer side of the support plate. There are multiple gaskets, each fixedly connected to the bending frame and located on the top of the bending frame.
[0006] The bending assembly further includes a fixed frame, lifting cylinders, a lower slide rail, and mounting bases. The fixed frame is fixedly connected to the frame and located below the support base. There are two lifting cylinders, each fixedly connected to the fixed frame and located in the middle of the fixed frame. There are multiple lower slide rails, each fixedly connected to the fixed frame and located on both sides of the fixed frame. There are multiple mounting bases, each slidably connected to the lower slide rail and located at the bottom of the support base.
[0007] The secondary bending assembly includes a pressure frame, pressure cylinders, upper slide rails, a lifting frame, and a pressure plate. The pressure frame is fixedly connected to the machine frame and passes through it. There are two pressure cylinders, each fixedly connected to and passing through the pressure frame. There are two upper slide rails, each fixedly connected to the pressure frame and located in the middle of it. The lifting frame is slidably connected to the upper slide rails and located in the middle of them. The pressure plate is fixedly connected to the lifting frame and located in the middle of it.
[0008] The secondary bending assembly further includes a bending seat, a bending cylinder, a connecting seat, a bending plate, and connecting rods. There are two bending seats, each connected to the lifting frame and located on the outer side of the lifting frame. There are two bending cylinders, each fixedly connected to a bending seat and located at the top of the bending seat. The connecting seat is connected to the bending cylinder and located at the bottom of the bending cylinder. There are two bending plates, each rotatably connected to the connecting seat and located in the middle of the connecting seat. There are multiple connecting rods, each with one end rotatably connected to a bending seat and the other end rotatably connected to a bending plate.
[0009] The positioning assembly includes a positioning slide rail, a front fixed slider, a rear fixed slider, a side fixed slider, and a positioning plate. There are two positioning slide rails, each fixedly connected to the frame and located on either side of the support base. There are also two front fixed sliders, each slidably connected to the positioning slide rail and located on the outer side of the rail. Similarly, there are two rear fixed sliders, each slidably connected to the positioning slide rail and located on the outer side of the rail. The side fixed slider is slidably connected to the positioning slide rail and located on the side of the rail. The positioning plate is detachably connected to the positioning slide rail and located on top of the rail.
[0010] This utility model's W-shaped bending mechanism, in use, places a plate on the surface of the support plate and fixes it using the positioning assembly. Then, the pressure cylinder moves the pressure plate downwards to press the plate firmly. After releasing the positioning assembly, an external power device rotates the rotating flange and the support plate, simultaneously rotating the bending frame and the gasket, performing a first bend to form a U-shape. The lifting cylinder then moves downwards, causing the support seat to move downwards, and the bending cylinder moves the connecting seat upwards. Limiting the movement with the connecting rod, the bending plate rotates along the connecting seat, performing a second bend to form a W-shape. This solves the problem of damage and poor bending results that often occur during single-bending of plates in a W-shape. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0012] Figure 1 This is a schematic diagram of the overall structure of the W-shaped bending mechanism according to the first embodiment of this utility model.
[0013] Figure 2 This is a schematic diagram of the structure of a bending assembly according to the first embodiment of this utility model.
[0014] Figure 3 This is a schematic diagram of the structure of the secondary bending component according to the first embodiment of this utility model.
[0015] Figure 4 This is a schematic diagram of the positioning component according to the first embodiment of the present invention.
[0016] In the diagram: 101-Frame, 102-Support seat, 103-Rotating flange, 104-Support plate, 105-Bending frame, 106-Gasket, 107-Fixing frame, 108-Lifting cylinder, 109-Sliding slide rail, 110-Mounting seat, 111-Pressure frame, 112-Pressure cylinder, 113-Upper slide rail, 114-Lifting frame, 115-Pressure plate, 116-Bending seat, 117-Bending cylinder, 118-Connecting seat, 119-Bending plate, 120-Connecting rod, 121-Positioning slide rail, 122-Front fixed slider, 123-Rear fixed slider, 124-Side fixed slider, 125-Positioning plate. Detailed Implementation
[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0018] The first embodiment of this application is as follows:
[0019] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of the W-shaped bending mechanism according to the first embodiment of this utility model. Figure 2 This is a structural schematic diagram of the first embodiment of the bending assembly of this utility model. Figure 3 This is a structural schematic diagram of the secondary bending assembly according to the first embodiment of this utility model. Figure 4 This is a schematic diagram of the positioning component of the first embodiment of the present invention. The present invention provides a W-shaped bending mechanism, including a frame 101, a primary bending component, a secondary bending component, and a positioning component. The primary bending component includes a support base 102, a rotating flange 103, a support plate 104, a bending frame 105, a gasket 106, a fixing frame 107, a lifting cylinder 108, a lower slide rail 109, and a mounting base 110. The secondary bending component includes a pressing frame 111, a pressing... The components include a material cylinder 112, an upper slide rail 113, a lifting frame 114, a pressure plate 115, a bending seat 116, a bending cylinder 117, a connecting seat 118, a bending plate 119, and a connecting rod 120. The positioning assembly includes a positioning slide rail 121, a front fixed slider 122, a rear fixed slider 123, a side fixed slider 124, and a positioning plate 125. The aforementioned solution solves the problem that when bending a sheet metal in a W-shape, the sheet metal is easily damaged in one forming, resulting in poor bending effect.
[0020] In this specific embodiment, the support base 102 is connected to the frame 101 and is located in the middle of the frame 101. Multiple rotating flanges 103 are rotatably connected to the support base 102 and pass through it. Two support plates 104 are detachably connected to the rotating flanges 103 and are located in the middle of each flange. Multiple bending frames 105 are fixedly connected to the support plates 104 and are located on the outer side of each support plate. Multiple gaskets 106 are fixedly connected to the bending frames 105 and are located on top of each bending frame. The frame 101 provides support for the device, the support base 102 provides support for the primary bending assembly, and the rotating flanges 103 are connected to an external power device for bending. The frame 105 and the pad 106 provide a transmission function, the support plate 104 provides support for the plate, and the bending frame 105 and the pad 106 provide bending function for the plate. In use, the plate is placed on the surface of the support plate 104 and fixed by the positioning assembly. Then, the pressure cylinder 112 is controlled to move the pressure plate 115 downwards, pressing the plate tightly. Afterwards, the positioning assembly is released from fixing the plate, and an external power device drives the rotation... Flange 103 and the support plate 104 rotate, simultaneously driving the bending frame 105 and the gasket 106 to rotate, bending the plate once to form a U-shape. At this time, the lifting cylinder 108 moves downward, driving the support seat 102 to move downward, and then the bending cylinder 117 drives the connecting seat 118 to move upward. Through the limiting of the connecting rod 120, the bending plate 119 rotates along the connecting seat 118, bending the plate a second time to form a W-shape.
[0021] The fixed frame 107 is fixedly connected to the frame 101 and located below the support base 102. There are two lifting cylinders 108, each fixedly connected to the fixed frame 107 and located in the middle of the fixed frame 107. There are multiple sliding rails 109, each fixedly connected to the fixed frame 107 and located on both sides of the fixed frame 107. There are multiple mounting seats 110, each slidably connected to the sliding rails 109 and located at the bottom of the support base 102. The fixed frame 107 provides support for the lifting cylinders 108, which in turn control the primary bending assembly. The sliding rails 109 guide the mounting seats 110, which in turn guide the support base 102.
[0022] Secondly, the pressing frame 111 is fixedly connected to the frame 101 and passes through the pressing frame 111. There are two pressing cylinders 112, each fixedly connected to and passing through the pressing frame 111. There are also two upper slide rails 113, each fixedly connected to the pressing frame 111 and located in the middle of the pressing frame 111. The lifting frame 114 is slidably connected to the upper slide rails 113 and located in the middle of the upper slide rails 113. The pressure plate 115 is fixedly connected to the lifting frame 114 and is located in the middle of the lifting frame 114. The pressure frame 111 is used to support the pressure cylinder 112. The pressure cylinder 112 is used to control the secondary bending assembly. The upper slide rail 113 is used to guide the lifting frame 114. The lifting frame 114 is used to support the pressure plate 115. The pressure plate 115 is used to support the bending plate 119 and, together with the support plate 104, fixes the plate to be bent.
[0023] Furthermore, there are two bending seats 116, each connected to the lifting frame 114 and located on the outer side of the lifting frame 114. There are also two bending cylinders 117, each fixedly connected to a bending seat 116 and located at the top of the bending seat 116. A connecting seat 118 is connected to each bending cylinder 117 and located at its bottom. There are also two bending plates 119, each rotatably connected to a connecting seat 118 and located in the middle of the connecting seat 118. Finally, there are multiple connecting rods 120, one end of which is connected to a bending seat 116. The connecting rods 120 are rotatably connected to the bending plate 119 at their other ends. The bending seat 116 provides support for the bending cylinder 117, which controls the connecting seat 118. The connecting seat 118 provides rotation for the bending plate 119, which is used to perform a secondary bend on the U-shaped plate after the first bend. The connecting rods 120 provide a limiting function for the bending plate 119. In use, the bending cylinder 117 retracts, causing the connecting seat 118 to move upward. At this time, the bending plate 119 is limited by the connecting rods 120, allowing it to rotate along the connecting seat 118, which facilitates the secondary bend of the plate.
[0024] Finally, there are two positioning slide rails 121, each fixedly connected to the frame 101 and located on either side of the support base 102. There are also two front fixed sliders 122, each slidably connected to the positioning slide rail 121 and located on the outer side of the positioning slide rail 121. Finally, there are two rear fixed sliders 123, each slidably connected to the positioning slide rail 121 and located on the outer side of the positioning slide rail 121. The side fixing slider 124 is slidably connected to the positioning slide rail 121 and is located on the side of the positioning slide rail 121. The positioning plate 125 is detachably connected to the positioning slide rail 121 and is located on the top of the positioning slide rail 121. The positioning slide rail 121 is used to provide support and guidance for the positioning assembly. The front fixing block is used to position the front part of the plate. The rear fixing block cooperates with the front fixing block to clamp the front and rear of the plate. The positioning plate 125 cooperates with the side fixing slider 124 to fix the side of the plate.
[0025] Using the W-shaped bending mechanism of this embodiment, the plate is placed on the surface of the support plate 104 and fixed by the positioning component. At this time, the pressure cylinder 112 is controlled to drive the pressure plate 115 to move downward, pressing the plate tightly. Then, the positioning component is released from fixing the plate, and the rotating flange 103 and the support plate 104 are rotated by an external power device, which simultaneously drives the bending frame 105 and the gasket 106 to rotate, bending the plate once to form a U-shape. At this time, the lifting cylinder 108 moves downward, driving the support seat 102 to move downward, and then the bending cylinder 117 drives the connecting seat 118 to move upward. Through the limiting of the connecting rod 120, the bending plate 119 is driven to rotate along the connecting seat 118, bending the plate a second time to form a W-shape. This solves the problem that when bending a plate in a W-shape, the plate is easily damaged in one forming, resulting in poor bending effect.
[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A W-shaped bending mechanism, comprising a frame, characterized in that, It also includes a primary bending assembly, a secondary bending assembly, and a positioning assembly; The primary bending assembly includes a support base, a rotating flange, a support plate, a bending frame, and gaskets. The support base is connected to the frame and is located in the middle of the frame. There are multiple rotating flanges, each rotatably connected to the support base and passing through it. There are two support plates, each detachably connected to the rotating flange and located in the middle of it. There are multiple bending frames, each fixedly connected to the support plate and located on the outside of it. There are multiple gaskets, each fixedly connected to the bending frame and located on top of it. The secondary bending assembly and the positioning assembly are connected to the frame.
2. The W-shaped bending mechanism as described in claim 1, characterized in that, The single-bending assembly further includes a fixed frame, lifting cylinders, a lower slide rail, and mounting bases. The fixed frame is fixedly connected to the frame and located below the support base. There are two lifting cylinders, each fixedly connected to the fixed frame and located in the middle of the fixed frame. There are multiple lower slide rails, each fixedly connected to the fixed frame and located on both sides of the fixed frame. There are multiple mounting bases, each slidably connected to the lower slide rail and located at the bottom of the support base.
3. The W-shaped bending mechanism as described in claim 2, characterized in that, The secondary bending assembly includes a pressure frame, pressure cylinders, upper slide rails, a lifting frame, and a pressure plate. The pressure frame is fixedly connected to the machine frame and passes through it. There are two pressure cylinders, each fixedly connected to and passing through the pressure frame. There are two upper slide rails, each fixedly connected to the pressure frame and located in the middle of it. The lifting frame is slidably connected to the upper slide rails and located in the middle of them. The pressure plate is fixedly connected to the lifting frame and located in the middle of it.
4. The W-shaped bending mechanism as described in claim 3, characterized in that, The secondary bending assembly further includes a bending seat, a bending cylinder, a connecting seat, a bending plate, and connecting rods. There are two bending seats, each connected to the lifting frame and located on the outer side of the lifting frame. There are two bending cylinders, each fixedly connected to a bending seat and located at the top of the bending seat. The connecting seat is connected to the bending cylinder and located at the bottom of the bending cylinder. There are two bending plates, each rotatably connected to a connecting seat and located in the middle of the connecting seat. There are multiple connecting rods, each with one end rotatably connected to a bending seat and the other end rotatably connected to a bending plate.
5. The W-shaped bending mechanism as described in claim 4, characterized in that, The positioning assembly includes a positioning slide rail, a front fixed slider, a rear fixed slider, a side fixed slider, and a positioning plate. There are two positioning slide rails, each fixedly connected to the frame and located on either side of the support base. There are also two front fixed sliders, each slidably connected to the positioning slide rail and located on the outer side of the rail. Similarly, there are two rear fixed sliders, each slidably connected to the positioning slide rail and located on the outer side of the rail. The side fixed slider is slidably connected to the positioning slide rail and located on the side of the rail. The positioning plate is detachably connected to the positioning slide rail and located on top of the rail.