Pneumatic plate bender

Abstract

The utility model relates to a kind of pneumatic plate bending machine, comprising: fuselage, and workstation component;Workstation component includes workbench, bending mould, feed limiting strip, and side plate;The side of feed limiting strip away from bending mould is connected with moving frame, moving frame is slidably connected workbench;The opposite sides of moving frame bottom are respectively connected with rack, the side of moving frame top surface is connected with scale;The inside of workbench is rotatably installed with pivot, the opposite ends of pivot are respectively coaxially connected with gear, gear and rack are matched and engaged. The above-mentioned pneumatic plate bending machine, simple structure, convenient to use, feed limiting strip is slidably connected workbench by moving frame, position is adjusted using hand wheel, gear, rack, combined with scale and indicating block to improve precision, and then by eccentric compression rotating pin locking, can be flexibly adjusted according to different specifications plate piece feeding positioning, solve the problem that fixed positioning device cannot be flexibly adjusted, reduce the degree of operation cumbersome, satisfy various processing needs.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending technology, and in particular to a pneumatic sheet metal bending machine. Background Technology

[0002] As an important metal sheet processing equipment, the pneumatic plate bending machine uses a pneumatic system to power the bending die to bend the metal sheet, thereby processing the flat metal sheet into parts with specific angles and shapes to meet the design requirements of different products.

[0003] However, the feeding and positioning devices of most pneumatic plate bending machines on the market are currently outdated. Many machines use fixed limit blocks or baffles as feeding and positioning devices. This fixed structure cannot be flexibly adjusted according to the different sizes, shapes, and thicknesses of the feeding plates. When processing plates of different specifications, the fixed feeding and positioning device cannot adapt to the changes in the plates. Operators can only manually adjust the position of the plates to try to ensure the accuracy of the bending position. However, this method is not only cumbersome to operate, but it is also difficult to guarantee the accuracy of each adjustment. Utility Model Content

[0004] Based on this, the present invention provides a pneumatic plate bending machine with a simple structure and convenient use. The feed limit bar is slidably connected to the worktable through a moving frame. The position is adjusted by handwheel, gear, and rack, and the accuracy is improved by scale and indicator block. Then, it is locked by eccentric pressing rotating pin. The feed positioning can be flexibly adjusted according to different specifications of plates, which solves the problem that fixed positioning devices cannot be flexibly adjusted, reduces the complexity of operation, and meets diverse processing needs.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted: A pneumatic plate bending machine includes: a machine body and a worktable assembly mounted on the top of the machine body; the worktable assembly includes a worktable mounted on the top of the machine body, a bending die detachably mounted on one edge of the top surface of the worktable, a feed limiting strip movably connected to the top surface of the worktable, and side plates mounted on opposite sides of the worktable; a movable frame is connected to the side of the feed limiting strip away from the bending die, and the movable frame is slidably connected to the worktable; racks are respectively connected to opposite sides of the bottom surface of the movable frame, and a scale is connected to one side of the top surface of the movable frame; a rotating shaft is rotatably mounted inside the worktable, and gears are coaxially connected to opposite ends of the rotating shaft, with the gears meshing with the racks; a handwheel is coaxially connected to one end of the rotating shaft after passing through the side plate; an indicator block is connected to the inner wall of the side plate, and the indicator block is positioned opposite to the scale; an eccentric pressing rotating pin is also mounted on the side plate, and the eccentric pressing rotating pin is used to tightly abut against the movable frame.

[0006] The aforementioned pneumatic plate bending machine has a simple structure and is easy to use. The feed limit bar is slidably connected to the worktable through the moving frame. The position is adjusted by handwheel, gear, and rack, and the accuracy is improved by scale and indicator block. It is then locked by eccentric clamping rotating pin. It can flexibly adjust the feed positioning according to different specifications of plates, which solves the problem that fixed positioning devices cannot be flexibly adjusted, reduces the complexity of operation, and meets diverse processing needs.

[0007] In one embodiment, the bending die is disposed adjacent to the feed limit strip, and the bending die is located below the feed limit strip.

[0008] In one embodiment, the length direction of the bending die is consistent with the length direction of the feed limit strip.

[0009] In one embodiment, slide rails are connected to opposite sides of the top surface of the workbench; slide grooves are provided on the inner walls of opposite sides of the movable frame, and the slide grooves are matched and connected with the slide rails.

[0010] In one embodiment, the pneumatic plate bending machine further includes a bending assembly mounted on top of the workbench assembly and a cylinder mounted inside the machine body; the bending assembly includes a pressure plate slidably connected between two side plates, a synchronous shaft rotatably connected between the two side plates, and swing arms connected side-by-side to opposite ends of the synchronous shaft; one end of the swing arm is connected to the pressure plate via a connecting rod, and the other end of the swing arm is used to connect to the piston rod of the cylinder.

[0011] In one embodiment, the pressure plate is located directly above the bending die. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of a pneumatic plate bending machine according to one embodiment of the present invention; Figure 2 for Figure 1 A three-dimensional schematic diagram of the pneumatic plate bending machine from another perspective; Figure 3 for Figure 1 An exploded view of the pneumatic plate bending machine shown. Figure 4 for Figure 3 A three-dimensional schematic diagram of the workbench assembly in the pneumatic plate bending machine shown; Figure 5 for Figure 4 An exploded view of the workbench assembly in the pneumatic plate bending machine shown. Figure 6 for Figure 1 The diagram shows the internal structure of a pneumatic plate bending machine. Figure 7 for Figure 6 An enlarged view of circle A shown; Figure 8 for Figure 6 An enlarged schematic diagram of circle B shown.

[0013] Attached image annotations: 10-Fuselage; 20-Workbench assembly, 21-Workbench, 210-Slide rail, 22-Bending die, 211-Rotating shaft, 212-Gear, 23-Feed limit bar, 231-Moving frame, 232-Rack, 233-Scale, 24-Side plate, 240-Indicator block, 25-Handwheel, 26-Eccentric clamping rotating pin; 30-Bending assembly, 31-Pressure plate, 32-Synchronous shaft, 33-Swing arm, 34-Connecting rod; 40-Cylinder. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0015] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0017] Please see Figures 1 to 8 The pneumatic plate bending machine according to one embodiment of the present utility model includes a machine body 10, a worktable assembly 20 installed on the top of the machine body 10, a bending assembly 30 installed on the top of the worktable assembly 20, and a cylinder 40 installed inside the machine body 10; the cylinder 40 is connected upward to the bending assembly 30.

[0018] The workbench assembly 20 includes a workbench 21 mounted on the top of the machine body 10, a bending die 22 detachably mounted on one edge of the top surface of the workbench 21, a feed limiting strip 23 movably connected to the top surface of the workbench 21, and side plates 24 mounted on opposite sides of the workbench 21. The bending die 22 is arranged adjacent to the feed limiting strip 23, and the bending die 22 is located below the feed limiting strip 23.

[0019] In this embodiment, the length direction of the bending die 22 is consistent with the length direction of the feed limit strip 23.

[0020] In this embodiment, slide rails 210 are connected to opposite sides of the top surface of the workbench 21; a movable frame 231 is connected to the side of the feed limit bar 23 away from the bending mold 22. Slide grooves are provided on the inner walls of opposite sides of the movable frame 231. The slide grooves are matched and connected with the slide rails 210, so that the movable frame 231 is slidably connected to the workbench 21, thereby realizing the movable connection between the feed limit bar 23 and the workbench 21.

[0021] Furthermore, racks 232 are connected to opposite sides of the bottom surface of the movable frame 231, and a scale 233 is connected to one side of the top surface of the movable frame 231.

[0022] The worktable 21 has a rotatable shaft 211 inside. Gears 212 are coaxially connected to opposite ends of the shaft 211, and the gears 212 mesh with the rack 232. One end of the shaft 211 passes through the side plate 24 and is coaxially connected to a handwheel 25. By utilizing the synergistic effect of the handwheel 25, gears 212, and rack 232, the position of the feed limit bar 23 can be manually adjusted as needed, greatly improving the feeding positioning accuracy to meet the processing requirements of different specifications of sheet metal.

[0023] Furthermore, an indicator block 240 is connected to the inner wall of the side plate 24. The indicator block 240 is set opposite to the scale 233, which makes it convenient for the operator to accurately adjust the position of the feed limit bar 23.

[0024] Furthermore, an eccentric clamping rotary pin 26 is also installed on the side plate 24. The eccentric clamping rotary pin 26 is used to tightly abut against the moving frame 231 to lock the position of the moving frame 231, thereby locking the position of the feed limit bar 23.

[0025] The bending assembly 30 includes a pressure plate 31 slidably connected between two side plates 24, a synchronous shaft 32 rotatably connected between two side plates 24, and swing arms 33 connected side-by-side to opposite ends of the synchronous shaft 32; one end of the swing arm 33 is connected to the pressure plate 31 via a connecting rod 34, and the other end of the swing arm 33 is used to connect to the piston rod of the cylinder 40.

[0026] Specifically, the pressure plate 31 is located directly above the bending die 22. The pressure plate 31 is used to squeeze the sheet into the cavity of the bending die 22 to bend the sheet into the desired shape.

[0027] The pneumatic plate bending machine described above has a simple structure and is easy to use. The feed limit bar 23 is slidably connected to the worktable 21 through the moving frame 231. The position is adjusted by the handwheel 25, gear 212, and rack 232. The accuracy is improved by the ruler 233 and the indicator block 240. The machine is then locked by the eccentric pressing rotating pin 26. The feed positioning can be flexibly adjusted according to different specifications of plates, which solves the problem that fixed positioning devices cannot be flexibly adjusted, reduces the complexity of operation, and meets diverse processing needs.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pneumatic plate bending machine, characterized in that, include: The machine body and a worktable assembly mounted on the top of the machine body; the worktable assembly includes a worktable mounted on the top of the machine body, a bending die detachably mounted on one edge of the top surface of the worktable, a feed limit strip movably connected to the top surface of the worktable, and side plates mounted on opposite sides of the worktable; a movable frame is connected to the side of the feed limit strip away from the bending die, and the movable frame is slidably connected to the worktable; racks are connected to opposite sides of the bottom surface of the movable frame, and a scale is connected to one side of the top surface of the movable frame; a rotating shaft is rotatably mounted inside the worktable, and gears are coaxially connected to opposite ends of the rotating shaft, with the gears meshing with the racks; a handwheel is coaxially connected to one end of the rotating shaft after passing through the side plate; an indicator block is connected to the inner wall of the side plate, and the indicator block is positioned opposite to the scale; an eccentric clamping rotating pin is also mounted on the side plate, which is used to tightly abut against the movable frame.

2. The pneumatic plate bending machine according to claim 1, characterized in that, The bending die is arranged adjacent to the feed limit strip, and the bending die is located below the feed limit strip.

3. The pneumatic plate bending machine according to claim 1, characterized in that, The length direction of the bending die is consistent with the length direction of the feed limit strip.

4. The pneumatic plate bending machine according to claim 1, characterized in that, The top surface of the workbench is connected to slide rails on opposite sides; the inner walls on opposite sides of the movable frame are provided with slide grooves, which are matched and connected to the slide rails.

5. The pneumatic plate bending machine according to claim 1, characterized in that, It also includes a bending assembly mounted on top of the workbench assembly and a cylinder mounted inside the machine body; the bending assembly includes a pressure plate slidably connected between two side plates, a synchronous shaft rotatably connected between two side plates, and a swing arm connected side by side to opposite ends of the synchronous shaft; one end of the swing arm is connected to the pressure plate via a connecting rod, and the other end of the swing arm is used to connect to the piston rod of the cylinder.

6. The pneumatic plate bending machine according to claim 5, characterized in that, The pressure plate is located directly above the bending die.

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