A bending device for machining

Abstract

This utility model application relates to the field of machining technology, specifically to a bending device for machining. It includes a bending device body, a first power component mounted on the body, the output end of which is connected to a connecting plate. A bending block is mounted on the connecting plate. The bending device body also includes a pushing mechanism for displacing the material to be bent, and a pressing mechanism to prevent the material from warping upwards during bending. By moving the pushing mechanism in conjunction with the bending block, the material to be bent is pushed upwards, increasing the straight portion at the unfixed end of the material during bending. This avoids dimensional errors caused by length changes, solving the technical problem of shortening the straight portion at the unfixed end of the pipe, leading to length errors in the final product and thus reducing the machining quality of the bending device.

Description

Technical Field

[0001] This utility model application relates to the field of machining technology, specifically to a bending device for machining. Background Technology

[0002] Bending devices in machining are mainly used to bend metal sheets, thin steel plates, and other materials to the required angles and shapes. The bending device applies pressure to cause the metal sheet to undergo plastic deformation under the action of a die, thereby achieving changes in angle or shape. This process transforms a flat sheet into a part with a specific geometric shape.

[0003] Chinese Patent Publication No. CN221603098U discloses a bending device for mechanical processing, relating to the field of mechanical processing technology. This utility model includes a housing, an angle control component mounted on the top of the housing, a fixing component mounted on the top of the housing away from the angle control component, a power component for a bending assembly mounted at the bottom of the housing's inner cavity, a guide groove formed on the top of the housing, and a bending component of the bending assembly slidably fitted within the guide groove. The angle control component includes a fixing block, with an angle control block mounted on the side of the fixing block closest to the guide groove. This utility model, by including the angle control block, facilitates control of the bending angle during the bending process, avoiding uneven bending angles and problems such as deformation or twisting. Furthermore, by including a main clamping protective pad, a protective sleeve, a secondary clamping protective pad, and a protective pad, it prevents damage to the workpiece surface from the fixing block, angle control block, clamping plate, and support block during the bending process.

[0004] The aforementioned patent mentions that the cylinder of the machining bending device can tightly clamp the workpiece by controlling the extension and retraction of the telescopic rod to move the clamping plate. Since the force applied during the bending process is usually concentrated on the bending part of the tube, and the fixing of one end of the tube can easily lead to the shortening of the straight part of the unfixed end of the tube when bending, resulting in length error in the final product, thereby reducing the processing quality of the machining bending device. Therefore, we propose a bending device for machining. Utility Model Content

[0005] To address the aforementioned issues, a bending device for machining is provided. When the pushing mechanism, in conjunction with the moving bending block, pushes the material to be bent upwards, increasing the straight portion at the unfixed end of the material during bending. This avoids dimensional errors caused by length variations, solving the technical problem of shortening the straight portion at the unfixed end of the pipe, leading to length errors in the final product and thus reducing the processing quality of the bending device.

[0006] To address the existing technical problems, this utility model application provides a bending device for machining, including a bending device body, a first power component on the bending device body, the output end of the first power component being connected to a connecting plate, a bending block on the connecting plate, a pushing mechanism on the bending device body for pushing the material to be bent to move, and a pressing mechanism on the bending device body for preventing the material to be bent from warping upwards during bending.

[0007] Preferably, the pushing mechanism includes a driven roller assembly, a driving roller assembly, a transmission mechanism, and a transfer mechanism; the driven roller assembly is disposed on the main body of the bending device; the driving roller assembly is disposed on the main body of the bending device; the transmission mechanism is disposed on the main body of the bending device and is used to drive each roller of the driving roller assembly to rotate synchronously; the transfer mechanism is disposed on the main body of the bending device and is used to transfer the rotational power of the bending block to the transmission mechanism.

[0008] Preferably, the driven roller assembly is disposed between the second power member and the guide mechanism; the second power member is connected to the main body of the bending device, and the output end of the second power member is connected to the driven roller assembly. The guide mechanism is disposed between the main body of the bending device and the driven roller assembly, and the guide mechanism is used to cooperate with the driven roller assembly to move linearly along the main body of the bending device.

[0009] Preferably, the guiding mechanism includes a first slider and a first groove; the first slider is connected to the driven roller assembly; the first groove is formed on the side of the bending device body near the first slider, and the first groove is used to cooperate with the first slider to move linearly.

[0010] Preferably, the transmission mechanism includes a first sprocket assembly, a second sprocket assembly, and a third sprocket assembly; the first sprocket assembly is rotatably mounted on the main body of the bending device, and its working end is connected to the roller of the drive roller assembly; the second sprocket assembly is rotatably mounted on the main body of the bending device, and its working end on one side is connected to the working end on one side of the first sprocket assembly; the third sprocket assembly is rotatably mounted on the main body of the bending device, and its working end on one side is connected to the working end of the second sprocket assembly away from the first sprocket assembly.

[0011] Preferably, the transmission mechanism includes a toothed disc and a toothed plate; the toothed disc is connected to the bending block, and the toothed disc is connected to the working end of the third sprocket assembly away from the second sprocket assembly; the toothed plate is connected to the toothed disc, and the toothed plate is connected to the main body of the bending device.

[0012] Preferably, the pressing mechanism includes a connecting rod, a pressure plate, a screw, and a guide mechanism; the connecting rod is connected to the main body of the bending device and the active roller assembly; the pressure plate is disposed on the connecting rod; the screw is rotatably disposed on the connecting rod; the guide mechanism is disposed on the connecting rod and is used to cooperate with the pressure plate for linear movement.

[0013] Preferably, the guiding mechanism includes a second slider and a second slide groove; the second slider is disposed on the connecting rod, the second slider is connected to the side of the pressure plate near the connecting rod, and the second slider is threadedly connected to the screw; the second slide groove is formed on the side of the connecting rod near the second slider, and the second slide groove is used to cooperate with the second slider to move linearly.

[0014] The advantages of this utility model application compared to the prior art are:

[0015] 1. When the pushing mechanism moves in conjunction with the bending block, it pushes the material to be bent upwards, increasing the straight portion of the unfixed end of the material during bending. This avoids dimensional errors caused by length changes, solving the technical problem of shortening the straight portion of the unfixed end of the pipe, which leads to length errors in the final product and reduces the processing quality of the mechanical bending device.

[0016] 2. By using a pressing mechanism to constrain the material to be bent during bending, the upward warping of the material during the bending process is effectively suppressed, which helps to ensure the accuracy of the bending angle. This solves the technical problem of bending angle deviation caused by upward warping deformation during pipe bending, which in turn affects the product assembly accuracy and performance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the main body of a bending device, bending blocks, and their connecting structures, which are used in mechanical processing.

[0018] Figure 2 This is a three-dimensional schematic diagram of the driven roller assembly and the driving roller assembly of a bending device used in machining, and their connection structure.

[0019] Figure 3 This is a three-dimensional schematic diagram of the toothed plate and pressure plate of a bending device used in machining, and their connection structure.

[0020] Figure 4 This is a three-dimensional schematic diagram of a first sprocket assembly, a second sprocket assembly, and their connection structure in a bending device for machining.

[0021] Figure 5 This is a three-dimensional schematic diagram of a screw and a second slider, and their connection structure, used in a bending device for machining.

[0022] Figure 6 It is a bending device used in machining. Figure 3 Enlarged diagram of point A in the middle.

[0023] The following are the labels in the diagram: 1. Bending device body; 11. First power component; 12. Connecting plate; 13. Bending block; 2. Driven roller assembly; 21. Driven roller assembly; 22. Second power component; 23. First slider; 24. First slide groove; 25. First sprocket assembly; 26. Second sprocket assembly; 27. Third sprocket assembly; 28. Gear plate; 29. ​​Gear plate; 210. Connecting rod; 211. Pressure plate; 212. Screw; 213. Second slider; 214. Second slide groove. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model application, the following detailed description of this utility model application is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] See Figures 1-3 As shown, a bending device for machining includes a bending device body 1, a first power member 11 is provided on the bending device body 1, the output end of the first power member 11 is connected to a connecting plate 12, a bending block 13 is provided on the connecting plate 12, and a pushing mechanism for pushing the material to be bent to move is provided on the bending device body 1; the bending device body 1 is also provided with a pressing mechanism for preventing the material to be bent from warping upwards during bending; the pushing mechanism includes a driven roller assembly 2, a driving roller assembly 21, a transmission mechanism, and a transfer mechanism; the driven roller assembly 2 is provided on the bending device body 1; the driving roller assembly 21 is provided on the bending device body 1; the transmission mechanism is provided on the bending device body 1 and is used to drive each roller of the driving roller assembly 21 to rotate synchronously; the transfer mechanism is provided on the bending device body 1 and is used to transfer the rotational power of the bending block 13 to the transmission mechanism.

[0026] Specifically, the first power component 11 uses an electric motor as the implementing element.

[0027] When the bending device body 1 is running, the material to be bent is placed between the driven roller assembly 2 and the driving roller assembly 21 and fixed in a limited position. The pressing mechanism clamps and limits the upper surface of the material to be bent. After the first power component 11 is started, the output end of the first power component 11 drives the bending block 13 to rotate via the connecting plate 12, compressing and bending the material to be bent. At this time, the pushing mechanism, together with the bending block 13, pushes the material to be bent forward to reduce the shortening of the straight part of the unfixed end of the material to be bent; at the same time, the pressing mechanism can suppress the upward deformation of the material to be bent during the bending process. By effectively controlling the shortening of the pipe and unnecessary deformation, the scrap rate and rework rate caused by processing differences can be reduced, thereby improving product consistency and production efficiency.

[0028] See Figures 1-4 and Figure 6As shown, the driven roller assembly 2 is disposed between the second power member 22 and the guide mechanism; the second power member 22 is connected to the bending device body 1, and the output end of the second power member 22 is connected to the driven roller assembly 2. The guide mechanism is disposed between the bending device body 1 and the driven roller assembly 2, and the guide mechanism is used to cooperate with the driven roller assembly 2 to move linearly along the bending device body 1; the guide mechanism includes a first slider 23 and a first slide groove 24; the first slider 23 is connected to the driven roller assembly 2; the first slide groove 24 is opened on the side of the bending device body 1 near the first slider 23, and the first slide groove 24 is used to cooperate with the first slider 23 to move linearly.

[0029] Specifically, a deformable rubber pad is connected to the outer side of the roller of the active roller assembly 21, and the rubber pads of the rollers of the active roller assembly 21 are pressed against each other. The second power component 22 uses a cylinder as the implementing element. The first slider 23 and the first slide groove 24 form a sliding guide engagement.

[0030] When the material to be bent is placed between the driven roller assembly 2 and the driving roller assembly 21, the second power unit 22 is activated. The output end of the second power unit 22 pushes the driven roller assembly 2 to move, while the driven roller assembly 2 drives the first slider 23 to slide along the first groove 24. Due to the sliding guide cooperation between the first slider 23 and the first groove 24, the wobbling and deviation of the first slider 23 during movement can be suppressed, allowing the driven roller assembly 2 to stably approach the driving roller assembly 21 and apply extrusion force to the material to be bent. The outer side of the roller of the driving roller assembly 21 is bonded with a deformable rubber layer, and through the mutual extrusion of the rubber layers, the free rotation of the roller can be restricted, thereby stably constraining the material to be bent between the driven roller assembly 2 and the driving roller assembly 21 without external interference.

[0031] See Figure 3 , Figure 4 and Figure 6 As shown, the transmission mechanism includes a first sprocket assembly 25, a second sprocket assembly 26, and a third sprocket assembly 27. The first sprocket assembly 25 is rotatably mounted on the bending device body 1, and its working end is connected to the roller of the drive roller assembly 21. The second sprocket assembly 26 is rotatably mounted on the bending device body 1, and its working end is connected to the working end of the first sprocket assembly 25. The third sprocket assembly 27 is rotatably mounted on the bending device body 1, and its working end is connected to the working end of the second sprocket assembly 26 away from the first sprocket assembly 25. The transmission mechanism includes a toothed disc 28 and a toothed plate 29. The toothed disc 28 is connected to the bending block 13, and the toothed disc 28 is connected to the working end of the third sprocket assembly 27 away from the second sprocket assembly 26. The toothed plate 29 is mated with the toothed disc 28 and connected to the bending device body 1.

[0032] Specifically, the first sprocket assembly 25, the second sprocket assembly 26, and the third sprocket assembly 27 each consist of meshing sprockets and chains forming a transmission pair. The toothed disc 28 and the toothed plate 29 form a meshing transmission.

[0033] When the output end of the first power component 11 drives the bending block 13 to rotate and approach the material to be bent via the connecting plate 12, the bending block 13 synchronously drives the toothed disc 28 to move along the toothed plate 29. The rotation of the toothed disc 28 is achieved through the meshing transmission between the toothed disc 28 and the toothed plate 29. The rotational motion of the toothed disc 28 drives the working end of the third sprocket assembly 27 to rotate, which in turn drives the rollers of the drive roller assembly 21 to rotate in the same direction through the first sprocket assembly 25, the second sprocket assembly 26, and the third sprocket assembly 27, which are connected by a synchronous belt and a synchronous pulley to form a transmission pair. The rotational motion of the drive roller assembly 21 pushes the material to be bent toward the bending block 13, increasing the length of the straight section of the material near the bending block 13. When the bending block 13 presses the material, it can effectively reduce the length shrinkage of this straight section. During the bending process, the reduction in shrinkage can reduce the frequency of adjustment and correction, thereby improving production efficiency and shortening the production cycle.

[0034] See Figures 1-5 As shown, the pressing mechanism includes a connecting rod 210, a pressure plate 211, a screw 212, and a guiding mechanism. The connecting rod 210 is connected to the bending device body 1 and the active roller assembly 21. The pressure plate 211 is mounted on the connecting rod 210. The screw 212 is rotatably mounted on the connecting rod 210. The guiding mechanism is mounted on the connecting rod 210 and is used to cooperate with the pressure plate 211 for linear movement. The guiding mechanism includes a second slider 213 and a second slide groove 214. The second slider 213 is mounted on the connecting rod 210 and is connected to the side of the pressure plate 211 near the connecting rod 210. The second slider 213 is threadedly connected to the screw 212. The second slide groove 214 is opened on the side of the connecting rod 210 near the second slider 213 and is used to cooperate with the second slider 213 for linear movement.

[0035] Specifically, the second slider 213 and the second groove 214 form a sliding guide fit.

[0036] After the material to be bent is constrained between the driven roller assembly 2 and the driving roller assembly 21, the screw 212 is rotated. Because the second slider 213 and the second groove 214 form a sliding guide engagement, the second slider 213 does not rotate with the screw 212. Furthermore, since the second slider 213 is threadedly connected to the screw 212, it can stably drive the pressure plate 211 downwards along the second groove 214, thus achieving downward pressure constraint on the material to be bent by the pressure plate 211. This effectively suppresses upward warping of the material during bending, helps ensure the accuracy of the bending angle, and thereby improves the overall processing precision of the product.

[0037] Working Principle: During operation, the bending device 1 places the material to be bent between the driven roller assembly 2 and the driving roller assembly 21. The second power component 22 is activated to clamp and constrain the material between them. The rotating screw 212 drives the pressure plate 211 downwards to compress the material. Subsequently, the first power component 11 is activated, and the bending block 13 performs the bending operation. The rotational motion of the driving roller assembly 21 pushes the material to be bent towards the bending block 13, reducing the shortening of the straight portion of the material without fixing, while simultaneously pushing the pressure plate 211 to suppress the upward tilting of the material during bending. By effectively controlling the shortening and unnecessary deformation of the pipe, the scrap rate and rework rate caused by processing differences can be reduced, thereby improving product consistency and production efficiency.

[0038] The above embodiments only illustrate one or more implementation methods of this utility model application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model application, and these all fall within the protection scope of this utility model application. Therefore, the protection scope of this utility model application should be determined by the appended claims.

Claims

1. A bending device for machining, comprising a bending device body (1), a first power member (11) disposed on the bending device body (1), the output end of the first power member (11) being connected to a connecting plate (12), and a bending block (13) disposed on the connecting plate (12), characterized in that, The bending device body (1) is provided with a pushing mechanism for pushing the material to be bent to move; The bending device body (1) is also equipped with a pressing mechanism to prevent the material to be bent from curling up when it is bent.

2. A bending device for machining according to claim 1, characterized in that, The pushing mechanism includes a driven roller assembly (2), a driving roller assembly (21), a transmission mechanism, and a transfer mechanism; The driven roller assembly (2) is mounted on the main body (1) of the bending device; The active roller assembly (21) is mounted on the main body (1) of the bending device; The transmission mechanism is set on the main body (1) of the bending device. The transmission mechanism is used to drive each roller of the active roller assembly (21) to rotate synchronously. The transmission mechanism is set on the main body (1) of the bending device. The transmission mechanism is used to transmit the rotational power of the bending block (13) to the transmission mechanism.

3. A bending device for machining according to claim 2, characterized in that, The driven roller assembly (2) is disposed between the second power member (22) and the guide mechanism; The second power component (22) is connected to the main body (1) of the bending device, and the output end of the second power component (22) is connected to the driven roller assembly (2). The guide mechanism is located between the bending device body (1) and the driven roller assembly (2). The guide mechanism is used to cooperate with the driven roller assembly (2) to move linearly along the bending device body (1).

4. A bending device for machining according to claim 2, characterized in that, The guiding mechanism includes a first slider (23) and a first groove (24); The first slider (23) is connected to the driven roller assembly (2); The first slide (24) is located on the side of the bending device body (1) near the first slider (23). The first slide (24) is used to cooperate with the first slider (23) to move linearly.

5. A bending device for machining according to claim 1, characterized in that, The transmission mechanism includes a first sprocket assembly (25), a second sprocket assembly (26), and a third sprocket assembly (27); The first sprocket assembly (25) is rotatably mounted on the main body (1) of the bending device, and the working end of the first sprocket assembly (25) is connected to the roller of the active roller assembly (21); The second sprocket assembly (26) is rotatably mounted on the bending device body (1), and the working end of one side of the second sprocket assembly (26) is connected to the working end of one side of the first sprocket assembly (25). The third sprocket assembly (27) is rotatably mounted on the bending device body (1), and the working end of the third sprocket assembly (27) is connected to the working end of the second sprocket assembly (26) away from the first sprocket assembly (25).

6. A bending device for machining according to claim 5, characterized in that, The transmission mechanism includes a toothed disc (28) and a toothed plate (29); The toothed disc (28) is connected to the bending block (13), and the toothed disc (28) is connected to the working end of the third sprocket assembly (27) away from the second sprocket assembly (26); The toothed plate (29) is connected to the toothed disc (28), and the toothed plate (29) is connected to the main body (1) of the bending device.

7. A bending device for machining according to claim 1, characterized in that, The pressing mechanism includes a connecting rod (210), a pressure plate (211), a screw (212), and a guide mechanism; The connecting rod (210) is connected to the bending device body (1) and the active roller assembly (21); The pressure plate (211) is mounted on the connecting rod (210); The screw (212) is rotatably mounted on the connecting rod (210); The guide mechanism is mounted on the connecting rod (210) and is used to cooperate with the pressure plate (211) to move linearly.

8. A bending device for machining according to claim 5, characterized in that, The guiding mechanism includes a second slider (213) and a second slide (214); The second slider (213) is mounted on the connecting rod (210). The second slider (213) is connected to the side of the pressure plate (211) near the connecting rod (210). The second slider (213) is threadedly connected to the screw (212). The second slide (214) is provided on the side of the connecting rod (210) near the second slider (213), and the second slide (214) is used to cooperate with the second slider (213) to move linearly.

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