A bending device

Abstract

The utility model discloses a kind of bending devices, including base, and material support is provided on base, and the discharge end of material support is provided with clamping part, and clamping part is provided with the clamping groove that can open and close up and down, and the side opening of clamping groove away from material support is provided with turnover plate, and the both ends of turnover plate are rotatably connected with clamping part, and push-pull assembly is provided on base, and the output end of push-pull assembly is hinged with turnover plate, and the both sides of material support are respectively provided with the presser plate assembly that can be lifted up and down;The output end of push-pull assembly is driven turnover plate to the direction of clamping groove when stretching out;Presser plate assembly is used to top the board surface of board;Presser plate assembly exerts vertical pressure to board, limit its vertical displacement;Clamping groove makes board vertical compact fixation, prevent loosening;Presser plate assembly and clamping part double fixation, reduce board adjustment time and frequent calibration demand, make board bending more stable;Turnover plate and clamping groove cooperate to form stable bending fulcrum, avoid uneven stress to cause position deviation.

Description

Technical Field

[0001] This utility model relates to the field of bending equipment technology, and in particular to a bending device. Background Technology

[0002] A bending device is a mechanical device specifically designed for bending sheet metal, its main function being to fold the edges or the entire sheet. However, existing bending devices are prone to displacement during the bending process. This displacement causes deviations in the bending position of the sheet, affecting the final processing accuracy and product quality. Due to sheet displacement, the bending device cannot maintain the stability and accuracy of the sheet during the bending process, which not only reduces production efficiency but also increases the scrap rate.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a bending device that can position and clamp the sheet metal to improve the stability of the sheet metal during bending.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bending device includes a base, a material support frame on the base, a clamping part at the discharge end of the material support frame, a vertically opening and closing clamping groove within the clamping part, a folding plate at the opening on the side of the clamping groove away from the material support frame, both ends of the folding plate being rotatably connected to the clamping part, a push-pull assembly on the base, the output end of the push-pull assembly being hinged to the folding plate, and vertically lifting pressure plate assemblies on both sides of the material support frame; when the output end of the push-pull assembly extends, it drives the folding plate to flip towards the clamping groove; the pressure plate assembly is used to press down on the surface of the material.

[0007] In the bending device, the clamping part includes a clamping bottom plate and a clamping top plate. The clamping bottom plate is disposed on the base and located at the discharge end of the material support frame. The clamping top plate is disposed above the clamping bottom plate. The clamping groove is formed between the clamping bottom plate and the clamping top plate. A first cylinder is respectively disposed on the bottom of both sides of the clamping bottom plate. The output end of the first cylinder extends toward the clamping top plate and is connected to the clamping top plate. Bearing parts are respectively disposed on both sides of the clamping bottom plate. The folding plate is rotatably connected to the bearing parts.

[0008] In the bending device, at least two second cylinders are provided on the clamping top plate, the output ends of the two second cylinders extend toward the top of the folding plate, and the top of the folding plate is provided with a positioning hole that mates with the output end of the second cylinder.

[0009] In the bending device, a folding positioning inclined plate is provided on one side of the clamping top plate near the folding plate, and the folding positioning inclined plate is detachably connected to the clamping top plate; the included angle between the folding positioning inclined plate and the folding plate is the folding angle.

[0010] In the bending device, the push-pull assembly includes two third cylinders respectively disposed on both sides of the base. The fixed end of the third cylinder is hinged to the base, and the output end of the third cylinder is hinged to the folding plate through a hinge seat.

[0011] In the bending device, the pressure plate assembly includes a fourth cylinder and a pressure roller. The fourth cylinder is connected to the side of the material support frame, and the output end of the fourth cylinder is connected to a lifting frame. The pressure roller is rotatably connected to the free end of the lifting frame. The fourth cylinder is used to drive the pressure roller to move up and down above the material.

[0012] In the bending device, a plate edge guide component is provided on one side of the pressure plate assembly on the material support frame; the plate edge guide component is used to guide the plate.

[0013] In the bending device, the plate edge guide assembly includes a mounting base, on which at least two guide wheels are provided. The two guide wheels are rotatably connected to the mounting base, and the wheel surfaces of the two guide wheels extend into the working surface of the material support frame.

[0014] In the bending device, the two guide wheels are staggered in the vertical direction.

[0015] In the bending device, the top surface of the material support frame has a plurality of clamping parts distributed along its length direction. The clamping parts are provided with clamping grooves and material support plates, and the material support plates are at least partially embedded in the clamping grooves.

[0016] Beneficial effects:

[0017] This invention provides a bending device that applies vertical pressure to a sheet metal using a pressure plate assembly, restricting its displacement in the vertical direction; a clamping groove ensures the sheet metal is tightly fixed in the vertical direction, preventing loosening. This dual fixing mechanism of the pressure plate assembly and the clamping part reduces the time required for sheet metal adjustment and the need for frequent calibration, thereby shortening the processing cycle of a single workpiece and making the sheet metal bending process more stable. The cooperation between the folding plate and the clamping groove forms a stable bending fulcrum, ensuring the sheet metal remains fixed during bending, avoiding positional deviations caused by uneven force, thus guaranteeing the accuracy of the bending position and reducing product dimensional errors. Attached Figure Description

[0018] Figure 1 Schematic diagram of the overall structure of the bending device provided by this utility model Figure 1 ;

[0019] Figure 2 Schematic diagram of the overall structure of the bending device provided by this utility model Figure 2 ;

[0020] Figure 3 A schematic diagram of the structure of the clamping top plate in the bending device provided by this utility model;

[0021] Figure 4 Schematic diagram of the assembly structure of the clamping base plate and the folding plate in the bending device provided by this utility model Figure 1 ;

[0022] Figure 5 Schematic diagram of the assembly structure of the clamping base plate and the folding plate in the bending device provided by this utility model Figure 2 ;

[0023] Figure 6 A schematic diagram of the material support frame in the bending device provided by this utility model;

[0024] Figure 7 A schematic diagram of the bending device provided by this utility model in use.

[0025] Explanation of main component symbols: 1-base, 2-material support frame, 21-clamping part, 22-clamping groove, 23-material support plate, 3-clamping part, 31-clamping bottom plate, 32-clamping top plate, 33-clamping groove, 34-first cylinder, 35-bearing part, 36-second cylinder, 37-folding positioning inclined plate, 4-folding plate, 41-positioning hole, 5-push-pull assembly, 51-third cylinder, 52-hinge seat, 6-pressure plate assembly, 61-fourth cylinder, 62-pressure roller part, 63-lifting frame, 7-plate edge guide assembly, 71-mounting seat, 72-guide wheel part, 8-plate. Detailed Implementation

[0026] This utility model provides a bending device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] In the description of this utility model, it should be understood that the terms "middle," "inner side," "outer side," etc., indicate the orientation or positional relationship of this utility model based on the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0028] Please see Figures 1 to 7 This utility model provides a bending device, including a base 1, a material support frame 2 on the base 1, a clamping part 3 at the discharge end of the material support frame 2, a clamping groove 33 that can be opened and closed vertically within the clamping part 33, a folding plate 4 at the opening on the side of the clamping groove 33 away from the material support frame 2, and both ends of the folding plate 4 being rotatably connected to the clamping part 3, a push-pull assembly 5 on the base 1, the output end of the push-pull assembly 5 being hinged to the folding plate 4, and pressure plate assemblies that can be raised and lowered vertically on both sides of the material support frame 2. Component 6; When the output end of the push-pull assembly 5 extends, it drives the folding plate 4 to flip towards the clamping groove 33; The pressure plate assembly 6 is used to press the surface of the plate 8; The pressure plate assembly 6 presses the surface of the plate 8, applying vertical pressure to both sides of the plate 8 surface, restricting the vertical displacement of the plate 8; The clamping groove 33 clamps the plate 8 from top to bottom, preventing vertical loosening; The double fixing design of the pressure plate assembly 6 and the clamping part 3 reduces the adjustment time of the plate 8, eliminates the need for frequent position calibration, shortens the processing cycle of a single workpiece, and makes the bending process of the plate 8 more stable. The folding plate 4 and the clamping groove 33 cooperate to form a stable bending fulcrum, so that the plate 8 is always fixed during the bending process, avoiding positional deviation caused by uneven force, ensuring bending position accuracy, and reducing product size error.

[0029] In actual use, the sheet material 8 is placed on the support frame 2 and moves along the support frame 2 towards the discharge end to the clamping part 3. The pressure plate assemblies 6 on both sides of the support frame 2 descend and press the sheet material 8 against the surface of the sheet material 8 to initially fix the sheet material 8 on the support frame 2, preventing the sheet material 8 from moving in the vertical direction. The clamping groove 33 in the clamping part 3 opens and closes. When the sheet material 8 is in place, the clamping groove 33 closes, clamping the edge or body of the sheet material 8 from the vertical direction to further fix the position of the sheet material 8. The push-pull assembly 5 on the base 1 is activated. When the output end of the push-pull assembly 5 extends, it will drive the folding plate 4 to rotate around its rotation connection point with the clamping part 3 and rotate towards the clamping groove 33. The folding plate 4 is used to squeeze the part of the sheet material 8 that needs to be bent, so that the sheet material 8 undergoes plastic deformation under the cooperation of the clamping groove 33 and the folding plate 4 to complete the bending. After the bending is completed, the output end of the push-pull assembly 5 retracts and drives the folding plate 4 to reset.

[0030] like Figures 1 to 7 As shown, the clamping part 3 further includes a clamping base plate 31 and a clamping top plate 32. The clamping base plate 31 is disposed on the base 1 and located at the discharge end of the material support frame 2. The clamping top plate 32 is disposed above the clamping base plate 31. The clamping groove 33 is formed between the clamping base plate 31 and the clamping top plate 32. A first cylinder 34 is respectively disposed on the bottom of both sides of the clamping base plate 31. The output end of the first cylinder 34 extends toward the clamping top plate 32 and is connected to the clamping top plate 32. The first cylinder 34 directly drives the clamping top plate 32 to move up and down. The spacing of the clamping groove 33 can be adjusted according to the thickness of the plate 8 to ensure that plates 8 of different specifications can be stably clamped. The parallel design of the clamping base plate 31 and the top plate makes the clamping groove 33 evenly stressed, avoiding deformation of the plate 8 due to excessive local pressure, and preventing the plate 8 from moving in the vertical direction.

[0031] Specifically, bearing portions 35 are provided on both sides of the clamping base plate 31, and the folding plate 4 is rotatably connected to the bearing portions 35. The folding plate 4 is rotatably connected to the clamping base plate 31 through the bearing portions 35, and the bearing portions 35 ensure that the folding plate 4 rotates smoothly, avoiding bending angle deviation caused by jamming.

[0032] like Figures 1 to 7As shown, further, the clamping top plate 32 is provided with at least two second cylinders 36, the output ends of the two second cylinders 36 extending towards the top of the folding plate 4, and the top of the folding plate 4 is provided with positioning holes 41 that mate with the output ends of the second cylinders 36; before performing the clamping operation of the clamping groove 33 to clamp the plate 8, the feeding process of the plate 8 must be pre-positioned by means of the output ends of the second cylinders 36. The specific process is as follows: the second cylinder 36 is started, so that its output end moves along the predetermined path towards the top of the folding plate 4 until it reaches and inserts into the positioning hole 41 at the top of the folding plate 4. The output end of the second cylinder 36 is used to limit the length of the plate 8 extending from the clamping groove 33 to ensure that it can reach the predetermined position in the subsequent bending process. When the bent end of the plate 8 gradually moves and finally contacts the output end of the second cylinder 36, it indicates that the plate 8 has been successfully fed into place. At this time, the second cylinder 36 will retract to make room for the next clamping operation. Subsequently, the plate 8 is clamped and stabilized in the predetermined position by the clamping groove 33.

[0033] like Figures 1 to 7 As shown, further, a folding positioning inclined plate 37 is provided on the side of the clamping top plate 32 near the folding plate 4, and the folding positioning inclined plate 37 is detachably connected to the clamping top plate 32; the included angle between the folding positioning inclined plate 37 and the folding plate 4 is the folding angle; before the plate 8 enters the clamping part 3, according to the target bending angle, a folding positioning inclined plate 37 with a corresponding angle specification is selected and installed on the side of the clamping top plate 32 near the folding plate 4 through a detachable connection structure. At this time, a preset folding angle is formed between the folding positioning inclined plate 37 and the folding plate 4, providing an angle reference for subsequent bending operations. After the plate 8 is conveyed to the clamping part 3, the first cylinder 34 drives the clamping top plate 32 to press down, cooperating with the clamping bottom plate 31 to clamp the plate 8. When the folding plate 4 pushes the bent part of the plate 8 into place, the inclined surface of the folding positioning plate 37 is close to the upper surface of the bent part of the plate 8 to position the bent part of the plate 8 and ensure that the bent part is folded in place.

[0034] In one embodiment, the folding positioning ramp 37 is connected to the clamping top plate 32 by bolts.

[0035] like Figures 1 to 7 As shown, the push-pull assembly 5 further includes two third cylinders 51 respectively disposed on both sides of the base 1. The fixed end of the third cylinder 51 is hinged to the base 1, and the output end of the third cylinder 51 is hinged to the folding plate 4 through the hinge seat 52. When performing the bending process, the two third cylinders 51 are used to push the folding plate 4 to rotate around the bearing seat, so that the folding plate 4 drives the part of the plate 8 to be bent to complete the bending process.

[0036] like Figures 1 to 7 As shown, the pressure plate assembly 6 further includes a fourth cylinder 61 and a pressure roller 62. The fourth cylinder 61 is connected to the side of the material support frame 2, and the output end of the fourth cylinder 61 is connected to a lifting frame 63. The pressure roller 62 is rotatably connected to the free end of the lifting frame 63. The fourth cylinder 61 is used to drive the pressure roller 62 to move up and down above the plate 8. When the plate 8 has not entered the bending station, the fourth cylinder 61 is in a retracted state, driving the lifting frame 63 connected to it to move upward, so that the pressure roller 62 moves away from the surface of the material support frame 2, leaving space for the plate 8 to be conveyed, so that the plate 8 can smoothly pass through the material support frame 2 to reach the clamping part 3. When the plate 8 is conveyed to the designated position, the fourth cylinder 61 is vented and started, the output end extends downward, pushing the lifting frame 63 to descend vertically, thereby driving the pressure roller 62 to move downward synchronously. After the pressure roller 62 contacts the surface of the sheet metal 8, as the fourth cylinder 61 continues to press down, the pressure roller 62 tightly presses the sheet metal 8 against the support frame 2, restricting the vertical movement of the sheet metal 8 and completing the initial positioning and fixing of the sheet metal 8. This provides a stable foundation for the subsequent clamping by the clamping part 3 and the bending operation of the folding plate 4. When the folding plate 4 performs the bending operation on the sheet metal 8, the pressure roller 62 remains in contact with the surface of the sheet metal 8. Since the pressure roller 62 is rotatably connected to the lifting frame 63, when the sheet metal 8 changes shape under the action of bending force, the pressure roller 62 can roll on the surface of the sheet metal 8, which not only maintains pressure on the sheet metal 8 to prevent displacement, but also avoids hindering the deformation of the sheet metal 8 due to hard compression, ensuring that the bending process proceeds smoothly.

[0037] like Figures 1 to 7 As shown, further, a plate edge guide component 7 is provided on one side of the pressure plate assembly 6 on the material support frame 2; the plate edge guide component 7 is used to guide the plate 8; when the plate 8 moves from the material support frame 2 to the clamping part 3, the sides of the plate 8 are constrained by the plate edge guide components 7 on both sides of the material support frame 2. The edge of the plate 8 contacts the plate edge guide component 7, and under the action of friction or mechanical limiting, it is forced to move along a preset path to ensure that the plate 8 is always smoothly conveyed to the clamping part 3 in a straight line, avoiding the inability to accurately enter the clamping groove 33 due to deviation.

[0038] like Figures 1 to 7As shown, the plate edge guide assembly 7 further includes a mounting base 71, on which at least two guide wheel portions 72 are provided. The two guide wheel portions 72 are rotatably connected to the mounting base 71, and the wheel surfaces of both guide wheel portions 72 extend into the working surface of the material support frame 2. The mounting base 71 is securely fixed to one side of the pressure plate assembly 6 on the material support frame 2, and at least two guide wheel portions 72 on it are rotatably connected to the mounting base 71 via bearings, with their wheel surfaces extending into the working surface of the material support frame 2, forming a guide channel for the side of the plate 8. When the plate 8 is fed into the material support frame 2 by the conveying equipment, the side of the plate 8 naturally enters between the two guide wheel portions 72 and contacts the wheel surfaces. Under the action of the conveying power, the plate 8 moves forward, and the side generates friction with the wheel surfaces of the guide wheel portions 72, driving the guide wheel portions 72 to rotate around their axis. The rotation of the guide wheel 72 converts sliding friction into rolling friction, reducing resistance to the plate 8. At the same time, the clamping space formed by the two guide wheels 72 laterally constrains the movement path of the plate 8, ensuring that the plate 8 is smoothly conveyed to the clamping part 3 along the center line of the support frame 2. If the plate 8 deviates, the force on the guide wheel 72 on the deviated side increases, and the change in rotation speed generates a reverse force, automatically correcting the position of the plate 8.

[0039] like Figures 1 to 7 As shown, the two guide rollers 72 are further staggered in the vertical direction. When the plate 8 is conveyed along the support frame 2, its side will successively contact the two guide rollers at different heights. The guide roller at the lower position first contacts the lower part of the side of the plate 8, providing bottom support and lateral constraint; the guide roller at the higher position contacts the upper part of the side of the plate 8, forming an upper limit. The two work together to clamp the plate 8 in two dimensions, horizontal and vertical, restricting the up-and-down swaying and lateral displacement of the plate 8 during the conveying process, and ensuring that the plate 8 moves along a precise path to the clamping part 3. If the plate 8 tilts or deviates during the conveying, the contact force points between the side of the plate 8 and the guide rollers will differ due to the different heights of the two guide rollers 72. For example, when the plate 8 tilts to the upper right, the guide roller at the higher position on the right receives increased force, its rotation speed increases, and it generates a downward and leftward component force; at the same time, the guide roller at the lower position on the left also generates a reverse force through friction.

[0040] like Figures 1 to 7 As shown, further, the top surface of the material support frame 2 has multiple clamping sections 21 distributed along its length. Each clamping section 21 is provided with a clamping groove 22, and each clamping section 21 is provided with a support plate 23. The support plate 23 is at least partially embedded in the clamping groove 22. When the sheet material 8 is fed into the material support frame 2 by the conveying equipment, the bottom of the sheet material 8 contacts each support plate 23 simultaneously, maintaining stability under the support of the support plates 23. Users can periodically replace the support plates 23, utilizing the clamping characteristics of the clamping groove 22 to achieve a detachable connection of the support plates 23.

[0041] In this embodiment, the material support plate 23 is a flexible material support plate, including but not limited to silicone material support plate, plastic material support plate, rubber material support plate, etc.; the flexible material support plate can avoid hard contact with the bottom of the plate 8 and prevent the material support plate 23 from scratching the bottom surface of the plate 8.

[0042] In summary, the pressure plate assembly 6 applies vertical pressure to the sheet metal 8, limiting its displacement in the vertical direction; the clamping groove 33 ensures that the sheet metal 8 is tightly fixed in the vertical direction, preventing loosening. This dual fixing mechanism of the pressure plate assembly 6 and the clamping part 3 reduces the time required to adjust the sheet metal 8, decreases the need for frequent calibration, thereby shortening the processing cycle of a single workpiece and making the bending process of the sheet metal 8 more stable. The cooperation between the folding plate 4 and the clamping groove 33 forms a stable bending fulcrum, ensuring that the sheet metal 8 remains fixed during the bending process, avoiding positional deviations caused by uneven force, thus guaranteeing the accuracy of the bending position and reducing product dimensional errors.

[0043] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A bending device, characterized in that, The device includes a base, on which a material support frame is mounted. The material support frame has a clamping portion at its discharge end, and a vertically opening and closing clamping groove within the clamping portion. A folding plate is located at the opening on the side of the clamping groove furthest from the material support frame. Both ends of the folding plate are rotatably connected to the clamping portion. A push-pull assembly is mounted on the base, and its output end is hinged to the folding plate. Vertically lifting pressure plate assemblies are located on both sides of the material support frame. When the output end of the push-pull assembly extends, it causes the folding plate to flip towards the clamping groove. The pressure plate assemblies are used to press down on the surface of the material.

2. The bending device according to claim 1, characterized in that, The clamping part includes a clamping base plate and a clamping top plate. The clamping base plate is disposed on the base and located at the discharge end of the material support frame. The clamping top plate is disposed above the clamping base plate. The clamping groove is formed between the clamping base plate and the clamping top plate. A first cylinder is respectively disposed on the bottom of both sides of the clamping base plate. The output end of the first cylinder extends toward the clamping top plate and is connected to the clamping top plate. A bearing part is respectively disposed on both sides of the clamping base plate. The folding plate is rotatably connected to the bearing part.

3. A bending device according to claim 2, characterized in that, The clamping top plate is provided with at least two second cylinders, the output ends of the two second cylinders extend toward the top of the folding plate, and the top of the folding plate is provided with positioning holes that cooperate with the output ends of the second cylinders.

4. A bending device according to claim 2, characterized in that, A folding positioning inclined plate is provided on one side of the clamping top plate near the folding plate, and the folding positioning inclined plate is detachably connected to the clamping top plate; the included angle between the folding positioning inclined plate and the folding plate is the folding angle.

5. A bending device according to claim 1, characterized in that, The push-pull assembly includes two third cylinders respectively disposed on both sides of the base. The fixed end of the third cylinder is hinged to the base, and the output end of the third cylinder is hinged to the folding plate through a hinge seat.

6. A bending device according to claim 1, characterized in that, The pressure plate assembly includes a fourth cylinder and a pressure roller. The fourth cylinder is connected to the side of the material support frame, and the output end of the fourth cylinder is connected to a lifting frame. The pressure roller is rotatably connected to the free end of the lifting frame. The fourth cylinder is used to drive the pressure roller to move up and down above the material.

7. A bending device according to claim 1, characterized in that, The material support frame is provided with a plate edge guide assembly on one side of the pressure plate assembly; the plate edge guide assembly is used to guide the plate.

8. A bending device according to claim 7, characterized in that, The plate edge guide assembly includes a mounting base, on which at least two guide wheels are provided. The two guide wheels are rotatably connected to the mounting base, and the wheel surfaces of the two guide wheels extend into the working surface of the material support frame.

9. A bending device according to claim 8, characterized in that, The two guide wheels are staggered in the vertical direction.

10. A bending device according to claim 1, characterized in that, The top surface of the material support frame has multiple clamping sections distributed along its length. Each clamping section is provided with a clamping groove and a material support plate. The material support plate is at least partially embedded in the clamping groove.

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