Multi-angle corner plate bending equipment

Abstract

The present application relates to the technical field of bending processing, and particularly relates to a multi-angle corner plate bending equipment, which comprises a rack, which has a first direction and a second direction that are horizontal and perpendicular to each other, the upper surface of the rack forms a working surface for conveying along the first direction, the middle part of the rack along the first direction is rotationally installed with a frame through a rotating shaft, the lower part of the frame can rotate with the rotating shaft, the frame is arranged across the rack, the frame is installed with an upper knife capable of lifting, the lifting direction of the upper knife is perpendicular to the axis of the rotating shaft, the rack is provided with a first driving assembly for driving the frame to rotate and position; the two ends of the rotating shaft are respectively fixed with connecting pieces, the rotating shaft is fixed with a turnover knife through the connecting pieces, the rack is provided with a second driving assembly for driving the rotating shaft to rotate and position; the turnover knife is located on one side of the frame along the first direction.

Description

Technical Field

[0001] This invention relates to the field of bending processing technology, and in particular to a multi-angle corner plate bending device. Background Technology

[0002] Corner panels, as components in large public buildings, industrial plants, and prefabricated houses, are mainly used for wall joints and corner connections. Their bending precision and angle diversity determine the sealing performance of the structural splicing of the building facade. With the diversification of modern architectural styles, traditional single 90° right-angle corner panels can no longer meet the construction needs of irregularly shaped buildings. Irregularly shaped corner panels with different angles such as obtuse and acute angles are increasingly widely used.

[0003] Currently, existing corner plate bending equipment has a relatively simple structural design, and most of them are only suitable for 90° standard right angle bending operations. The position and angle of the bending cutter are fixed, and the bending angle cannot be adjusted according to production needs. It is difficult to complete the integrated bending processing of corner plates with multiple angles such as acute and obtuse angles, and the equipment has poor versatility.

[0004] In addition, the bending cutters of existing equipment are mostly fixed assembly structures, and there is no adaptive rotation or positioning adjustment function during bending operations. The sheet metal is subjected to uneven stress during the bending process, which not only easily causes the sheet metal to deform, but also results in irregular bending patterns. Summary of the Invention

[0005] The present invention provides a multi-angle corner plate bending device to at least solve one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, one or more embodiments of the present invention provide a multi-angle corner plate bending device, including a frame having a first direction and a second direction that are horizontal and perpendicular to each other. The upper surface of the frame forms a working surface for conveying along the first direction. A frame is rotatably mounted on the middle of the frame along the first direction via a rotating shaft. The lower part of the frame is rotatable relative to the rotating shaft. The frame is arranged across the frame. An upper blade capable of lifting and lowering is mounted on the frame. The lifting and lowering direction of the upper blade is perpendicular to the axis of the rotating shaft. A first driving assembly is provided on the frame to drive the frame to rotate and position. Connectors are fixed at both ends of the rotating shaft, and the rotating shaft is fixed to a flipping blade through the connectors. A second driving assembly is provided on the frame to drive the rotating shaft to rotate and position. The flipping blade is located on one side of the frame along the first direction, and a fixed blade is laid flat and fixed on the other side of the frame along the first direction. A pressure plate assembly is provided on the side of the frame away from the fixed blade along the first direction. The pressure plate assembly can press or release the plate on the working surface.

[0007] The beneficial effects of one or more of the above technical solutions are as follows: (1) This equipment breaks through the limitation of fixed angle in traditional bending equipment and realizes multi-angle bending processing of sheet metal. The present invention has a frame mounted in the middle of the frame and spans the frame. The first drive component can drive the frame to rotate and position as a whole. The frame is equipped with a liftable upper blade, so that the upper blade can be adjusted in angle synchronously with the frame. At the same time, the frame is equipped with a flipping blade that can be independently driven to rotate and position by the second drive component through the rotating shaft. Together with the fixed blades fixedly arranged on the frame, a dynamically adjustable bending and forming structure is formed. Through the independent angle adjustment structure of the frame and the flipping blade, the equipment is no longer limited to a single 90° right angle bending condition. It can be adapted to the bending and forming of corner plates with different angles such as acute angle and obtuse angle, effectively meeting the current processing and production needs of irregular corner plates.

[0008] (2) The present invention provides a pressure plate assembly on the side of the frame away from the fixed blade, which can reliably press and fix the plate material conveyed to the working surface of the frame. It can limit the displacement and movement of the plate material during the bending process, ensuring that the plate material is always in the preset processing position, avoiding the defects of traditional bending equipment without a pressure structure, which makes the plate material easy to shift and warp during bending, resulting in bending angle deviation and irregular forming shape.

[0009] (3) This equipment uses the frame as the load-bearing base, and the working surface conveys the plate along the first direction. The frame is arranged across the frame and the rotating shaft is assembled in the center. The overall structure is uniformly stressed and has high assembly stability. The lifting direction of the upper blade is perpendicular to the axis of the rotating shaft. With the partitioned arrangement of the fixed blade and the flipping blade, the bending force is balanced and the forming condition is stable. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention.

[0011] Figure 2 This is an isometric view of the upper and lower pressure knife assemblies in an embodiment of the present invention.

[0012] Figure 3 This is a side view of the upper and lower pressure knife assemblies in an embodiment of the present invention when they are not rotated.

[0013] Figure 4 This is a side view of the upper and lower pressure knife assemblies after rotation in an embodiment of the present invention.

[0014] Figure 5 This is a schematic diagram of the upper blade, fixed blade, and flipping blade in a vertical position in an embodiment of the present invention.

[0015] Figure 6 This is a schematic diagram of the upper blade, fixed blade, and flipping blade when tilted in an embodiment of the present invention.

[0016] Figure 7This is a schematic diagram of the pressure plate assembly in an embodiment of the present invention.

[0017] Figure 8 This is a schematic diagram illustrating how plates with different V-groove angles are bent to form different types of corner plates in an embodiment of the present invention.

[0018] In the diagram, 1. Upper pressure knife assembly; 2. Lower pressure knife assembly; 3. Frame; 4. Pressure plate assembly; 5. Sheet metal; 101. Rotary servo cylinder; 102. Lifting servo cylinder; 103. Frame; 104. Linear guide rail; 105. Slider; 106. Upper knife fixing plate; 107. Rack; 108. Rear connecting seat; 109. Upper knife; 111. Rotating shaft; 112. Gear; 113. Bearing seat; 201. Electric servo cylinder; 202. Fixed knife; 203. Tilting knife; 204. Connecting piece; 205. Support plate; 401. Frame plate; 402. Bullseye bearing; 403. Fixing seat; 404. Spring; 405. Pressure plate cylinder; 407. Pressure plate. Detailed Implementation

[0019] It should be noted that in the description of this application, the terms "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are used only for the purpose of concisely describing the technical solution of this application and do not indicate or imply that the device or component 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 application. In addition, the terms "first" and "second" are used only for distinguishing descriptive purposes and do not represent relative importance.

[0020] This embodiment discloses a multi-angle corner plate bending device, which is a preferred embodiment of this application and is only used to illustrate the technical principles of this application, and is not intended to limit the scope of protection of this application. Based on the embodiments of this application, all implementation methods obtained by those skilled in the art without creative effort fall within the scope of protection of this application.

[0021] Combination Figures 1 to 8 As shown, the multi-angle corner plate bending equipment in this embodiment includes a frame 3. The frame 3 is defined with a first direction and a second direction that are horizontal and perpendicular to each other. The upper surface of the frame 3 is constructed as a working surface for conveying the plate 5 along the first direction, which can stably convey and support the plate 5 to be processed. A frame 103 is rotatably mounted on the frame 3 at the middle position along the first direction via a rotating shaft 111. The frame 103 is arranged across the frame 3, and the lower part of the frame 103 can rotate relative to the rotating shaft 111 to realize the deflection adjustment of the overall angle of the frame 103.

[0022] Specifically, frame 103 is formed by two symmetrically arranged side beams and a top beam. The bottom ends of the two side beams are rotatably connected to the frame 3 via rotating shafts 111, and the top ends of the side beams are fixedly connected via the top beam to ensure the overall structural strength of frame 103. Linear guide rails 104 are fixedly installed on the inner side of the side beams. The extension direction of linear guide rails 104 is perpendicular to the axis of rotating shafts 111. A slider 105 is slidably mounted on the linear guide rails 104. The slider 105 is fixedly connected to the side of the upper blade fixing plate 106. An upper blade 109 is fixedly installed at the lower end of the upper blade fixing plate 106, so that the upper blade 109 can stably rise and fall along the linear guide rails 104 with the slider 105. A lifting servo cylinder 102 is fixedly installed at the upper end of the top beam. The extension and retraction drive end of the lifting servo cylinder 102 is fixed to the upper end of the upper blade fixing plate 106. The lifting servo cylinder 102 can drive the upper blade fixing plate 106 and the upper blade 109 to rise and fall vertically, completing the bending, pressing and resetting actions.

[0023] The frame 3 is equipped with a first drive assembly for driving the frame 103 to rotate and position. In this embodiment, the first drive assembly uses two sets of symmetrically arranged rotary servo cylinders 101. The end of the extension rod of the rotary servo cylinder 101 is hinged to the middle of the frame 103, and the end of the cylinder body of the rotary servo cylinder 101 is hinged to the frame 3 through the rear connecting seat 108. By synchronously extending and retracting the two sets of rotary servo cylinders 101, the frame 103 can be driven to deflect at any angle relative to the rotating shaft 111, and the angle self-locking position can be achieved, thereby adjusting the bending angle of the upper blade 109 to adapt to different bending angle requirements.

[0024] Connectors 204 are fixedly mounted at both ends of the rotating shaft 111. The rotating shaft 111 is fixedly connected to the flipping blade 203 through the connectors 204 at both ends, so that the flipping blade 203 can rotate synchronously with the rotating shaft 111. A second drive assembly is provided on the frame 3 to drive the rotating shaft 111 to rotate and position. The second drive assembly includes a gear 112, a rack 107, and an electric servo cylinder 201. The gear 112 is coaxially fixed with the rotating shaft 111. The rack 107 is arranged vertically and meshes with the gear 112 for transmission. The lower end of the rack 107 is fixed to the drive end of the vertically arranged electric servo cylinder 201. The cylinder body of the electric servo cylinder 201 is fixed to the frame 3 through the rear connecting seat 108. During operation, the electric servo cylinder 201 drives the rack 107 to move vertically, and through the gear and rack meshing transmission, drives the rotating shaft 111 to rotate precisely, thereby realizing the angle adjustment and positioning of the flipping blade 203.

[0025] This equipment adopts a partitioned cutter arrangement structure. A flip-over cutter 203 is positioned on one side of the frame 103 along the first direction, while a fixed cutter 202 is laid flat and fixed on the other side of the frame 103 along the first direction. The fixed cutter 202 remains stationary. Together with the angle-adjustable upper cutter 109 and the flip-over cutter 203, a multi-angle adjustable bending and forming station is formed. A support plate 205 is fixedly installed on the outer side of the flip-over cutter 203. The support plate 205 extends away from the rotating shaft 111, forming a cantilever structure. The support plate 205 is a flat plate, and its extension length along the second direction does not exceed the range of the frame 103. During bending, the support plate 205 effectively supports the bending area of ​​the sheet metal 5, preventing the sheet metal 5 from being suspended and deformed, and ensuring the flatness of the bent shape.

[0026] A pressure plate assembly 4 is mounted on the side of frame 103 along the first direction and away from the fixed blade 202. The pressure plate assembly 4 is used to press and fix the sheet metal 5 on the working surface of the frame 3 or to loosen and reset it, effectively preventing the sheet metal 5 from shifting or moving during bending. Specifically, the pressure plate assembly 4 includes a frame plate 401 fixed on the frame 3. Several fixed seats 403 are arrayed on the frame plate 401. Each fixed seat 403 is equipped with a bullseye bearing 402. A spring 404 is installed between the bullseye bearing 402 and the fixed seat 403. During the conveying of the sheet metal 5, the spring 404 lifts the bullseye bearing 402, which can greatly reduce the conveying friction of the sheet metal 5 and ensure smooth conveying of the sheet metal 5. During the bending operation, the bullseye bearing 402 is compressed and compresses the spring 404, causing the bottom surface of the sheet metal 5 to fit against the plane of the frame plate 401, achieving gapless positioning.

[0027] A pressure plate cylinder 405 is fixedly installed at both ends of the frame plate 401 along the second direction. The pressure plate cylinder 405 is arranged vertically, and a pressure plate 407 is fixed to the upper end of the telescopic end of the pressure plate cylinder 405. When the sheet material 5 is conveyed to the preset bending station, the pressure plate cylinder 405 extends to drive the pressure plate 407 to press down, pressing the surface of the sheet material 5. This allows the sheet material 5 to overcome the elastic force of the spring 404 and sink with the bullseye bearing 402. Finally, the sheet material 5 is completely in contact with the working surface, achieving locking and positioning, and avoiding problems such as sheet material displacement, warping, and offset during bending. After bending is completed, the pressure plate cylinder 405 retracts, the pressure plate 407 rises, the spring 404 resets and lifts the bullseye bearing 402, thus releasing the sheet material 5, facilitating the unloading of the finished product and the feeding of the next workpiece.

[0028] The specific workflow of this equipment is as follows: During actual production, the operator transports the pre-cut V-groove plate 5 along the first direction of the working surface of the frame 3 to the bending station to complete the initial alignment and positioning of the plate. Then, the pressure plate cylinder 405 is activated, which drives the pressure plate 407 to press down and tighten the plate 5. The pressure on the plate 5 causes the bullseye bearing 402 to compress the lower spring 404 and sink, so that the lower surface of the plate 5 is completely in contact with the working surface of the frame plate 401, achieving stable locking of the plate.

[0029] Based on the target bending angle of the corner plate to be processed, the equipment control system adjusts the parameters accordingly, controlling the rotation servo cylinder 101 of the first drive component and the electric servo cylinder 201 of the second drive component to adjust the deflection angle of the frame 103 and the rotation angle of the flipping blade 203, so that the upper blade 109, the fixed blade 202 and the flipping blade 203 match to form the target bending angle. After the parameters are adjusted, the lifting servo cylinder 102 drives the upper blade fixed plate 106 and the upper blade 109 to press down stably along the linear guide rail 104, which, together with the angle support of the flipping blade 203, makes the V-groove position of the plate 5 accurately fit and bend, completing the multi-angle bending operation.

[0030] After a single sheet of material is bent and formed, the equipment automatically resets. The lifting servo cylinder 102 drives the upper cutter 109 to rise and reset, the electric servo cylinder 201 drives the flipping cutter 203 to return to its original position, and at the same time, the pressure plate cylinder 405 drives the pressure plate 407 to rise. The spring 404 rebounds and lifts the bullseye bearing 402, releasing the formed corner plate. The operator then transports the finished sheet to the next process, allowing it to enter the next cycle of processing. When it is necessary to change the bending angle or adapt to the production of corner plates of different specifications, only the target angle parameters need to be input into the equipment control system. Each servo cylinder automatically matches and adjusts the working stroke and positioning angle, eliminating the need to change molds or manually align, thus quickly completing product changeover production.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the protection scope of this application. Structures, connection methods, and control principles not described in detail in this application are all existing well-known technologies in the field and can be conventionally implemented by those skilled in the art.

Claims

1. A multi-angle corner plate bending device, characterized in that, The device includes a frame having a first direction and a second direction that are horizontal and perpendicular to each other. The upper surface of the frame forms a working surface for conveying along the first direction. A frame is rotatably mounted on the middle of the frame along the first direction via a pivot. The lower part of the frame is rotatable relative to the pivot. The frame is arranged across the frame. An upper blade that can be raised and lowered is mounted on the frame. The raising and lowering direction of the upper blade is perpendicular to the axis of the pivot. The frame is provided with a first drive assembly for driving the frame to rotate and positioning. Connectors are fixed at both ends of the rotating shaft, and the rotating shaft is fixed to the flipping blade through the connectors. A second drive assembly is provided on the frame to drive the rotating shaft to rotate and position it. The flipping blade is located on one side of the frame along the first direction, and a fixed blade is laid flat and fixed on the other side of the frame along the first direction. The frame is provided with a pressure plate assembly on the side opposite to the fixed blade along the first direction. The pressure plate assembly can press or release the plate on the working surface.

2. The multi-angle corner plate bending device according to claim 1, characterized in that, The first drive assembly includes two rotary servo cylinders. The end of the extension rod of the rotary servo cylinder is hinged to the middle of the frame, and the end of the cylinder body of the rotary servo cylinder is hinged to the frame.

3. The multi-angle corner plate bending equipment according to claim 1, characterized in that, The second drive assembly includes a gear, a rack, and an electric servo cylinder. The gear meshes with the rack, the gear is coaxially fixed with the rotating shaft, the rack is vertically arranged, and the lower end of the rack is fixed to the drive end of the vertically driven electric servo cylinder.

4. The multi-angle corner plate bending equipment according to claim 1, characterized in that, The frame includes two side beams and a top beam. The bottom end of the side beams is rotatably connected to the frame via a pivot, and the top end of the side beams is fixed via the top beam. A linear guide rail is installed on the side beams. The extension direction of the linear guide rail is perpendicular to the axis of the pivot. A slider is installed in the linear guide rail. The slider is fixed to the side of the upper blade fixing plate, and the lower end of the upper blade fixing plate is fixed to the upper blade.

5. The multi-angle corner plate bending device according to claim 4, characterized in that, The top beam is equipped with a lifting servo cylinder, and the lower end of the lifting servo cylinder is fixed to the upper end of the upper blade fixing plate.

6. The multi-angle corner plate bending device according to claim 1, characterized in that, The pressure plate assembly includes a frame plate fixed to the frame, a fixed seat is mounted on the frame plate, a bullseye bearing is mounted on the fixed seat, and a spring is provided between the bullseye bearing and the fixed seat.

7. The multi-angle corner plate bending device according to claim 6, characterized in that, A pressure plate cylinder is fixed to one end of the frame plate along the second direction, and a pressure plate is fixed to the upper end of the pressure plate cylinder.

8. The multi-angle corner plate bending device according to claim 1, characterized in that, A support plate is fixed on the flipping blade, and the support plate extends toward the side away from the rotating shaft.

9. The multi-angle corner plate bending device according to claim 8, characterized in that, The tray is a flat plate that extends along the second direction to no more than the frame.

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