Miniature bending machine

Abstract

The utility model discloses a miniature bending machine, and belongs to the field of bending machines. A miniature bending machine comprises a working table, a bending component is fixed to the upper side of the working table, a sliding groove is fixed to the upper side of the working table, and a limiting plate is fixed to the inner side of the sliding groove. According to the bending device, the bending device can better adapt to bent pipe bodies with different diameters, the ends or other parts of the bent pipe bodies are bent, meanwhile, a pressure sensor is installed at the internal stress point of the bending die, and a force measuring component is installed on one side of the bending die; the stress condition of the die in the bending process is monitored in real time through cooperation of the force measuring component, so that an operator can find and adjust abnormal conditions in the bending process in time, the safety and stability of bending operation are ensured, real-time monitoring and accurate control over the bending process are achieved, and the working efficiency is improved. And the risk that the bent pipe body is damaged or equipment breaks down is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of bending machines, in particular to a micro bending machine. Background Art

[0002] Traditional pipe bending equipment typically uses a fixed mold to bend the ends or other parts of a pipe body. While this traditional method can meet production needs to a certain extent, it lacks adaptability and is difficult to adapt to pipes of varying diameters. Furthermore, due to the lack of real-time monitoring and precise control, the pipe body is easily damaged during the bending process, even leading to equipment failure, thus affecting production efficiency and product quality. Utility Model Content

[0003] The purpose of the present invention is to provide a micro bending machine to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A micro bending machine comprises: a workbench, a bending member is fixed on the upper side of the workbench, a chute is fixed on the upper side of the workbench, a limit plate is fixed on the inner side of the chute, a placement block is fixed on the upper side of the workbench, and a bending pipe body is tightly fitted on the outer side wall of the placement block;

[0006] The bending member includes a fixed plate, a fixed plate is fixed on the upper side of the workbench, a cylinder is fixed on the upper side of the fixed plate, a piston rod is fixed in the output direction of the cylinder, a slider is fixed on one side of the piston rod, a reserved opening is opened at the bottom of the slider, a bending mold is fixed on the upper side of the slider, and a pressure sensor is installed at the inner force point of the bending mold;

[0007] A force measuring component is also installed on one side of the bending die.

[0008] The force measuring component includes an L-shaped connecting plate, the upper side of the slide groove is in contact with the L-shaped connecting plate, a round rod is fixed to one side of the L-shaped connecting plate, the spring is in close contact with the reserved opening at the bottom of the slider, a spring is fixed to one side of the L-shaped connecting plate, a fixed block is fixed to the other side of the spring, the spring is located on the outside of the round rod, a force sensor is welded to one side of the slide groove, and the L-shaped connecting plate is in contact with the limit plate and the force sensor.

[0009] The user activates the pneumatic cylinder. As the power source of the micro press brake, the cylinder operates by expanding the compressed air inside it to push a piston rod in reciprocating motion. Upon receiving the start signal, the cylinder rapidly pushes the piston rod forward. The movement of the piston rod drives the connected slider to slide within its groove. As the slider slides, the bending die gradually approaches the tube body. The bending die is a core component of the micro press brake, and its shape and size are customized according to the material, diameter, and required bending angle of the tube body. Once the bending die contacts the outer wall of the tube body, the pneumatic cylinder continues to push the piston rod forward, applying pressure to the bending die. This pressure is transmitted through the bending die to the tube body, causing it to plastically deform and complete the bending. A pressure sensor plays a crucial role in the bending process. It monitors the pressure applied by the bending die on the tube body in real time and feeds this information back to an external control system. The control system precisely regulates the thrust of the pneumatic cylinder based on the preset pressure range and bending requirements, ensuring that pressure fluctuations remain within a safe range.

[0010] Preferably, the bending members and the sliding grooves are provided in at least four groups, and are staggered with each other.

[0011] Preferably, the bottom of the slider and the outer side wall of the slide groove are in close sliding contact.

[0012] The design of the slide provides a stable sliding track for the slider, ensuring the stability and accuracy of the slider during the bending process.

[0013] Preferably, the outer side wall of the bending die is in close contact with the bent tube body.

[0014] Preferably, the bent pipe body is located directly above the chute.

[0015] Preferably, the structure of the slide groove is rectangular.

[0016] Preferably, the top of the placement block is provided with an arc-shaped opening having the same diameter as the elbow body.

[0017] The diameter of the arc-shaped opening matches the diameter of the bend body, so that the bend body can fit tightly on the placement block, providing a solid foundation for subsequent bending operations.

[0018] Compared with the existing technology, the present invention provides a micro bending machine with the following beneficial effects:

[0019] The utility model adopts an arc-shaped placement block and four groups of bending dies arranged in an interlaced manner, so that the equipment can better adapt to the bending pipe bodies of different diameters and bend the ends or other parts of the bending pipe bodies. At the same time, the present invention also installs pressure sensors at the internal stress points of the bending mold and a force measuring component on one side. The force measuring component cooperates to monitor the stress conditions of the mold during the bending process in real time, so that the operator can promptly discover and adjust abnormal conditions in the bending process, ensure the safety and stability of the bending operation, realize real-time monitoring and precise control of the bending process, and effectively avoid the risk of damage to the bending pipe body or equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a micro bending machine proposed in the utility model;

[0021] Figure 2 This is a schematic diagram of the front elevation structure of a micro bending machine proposed in the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of a micro bending machine proposed in the utility model;

[0023] Figure 4 This is a schematic diagram of the bending component structure of a micro bending machine proposed in the utility model;

[0024] Figure 5 This is an enlarged view of node A of a micro bending machine proposed in the utility model;

[0025] Figure 6 This is a schematic diagram of the force measuring component structure of a micro bending machine proposed in the utility model;

[0026] Figure 7 This is a schematic structural diagram of a force measuring component of a micro bending machine proposed in the utility model.

[0027] In the figure: 1. Workbench; 2. Bending member; 21. Fixed plate; 22. Cylinder; 23. Piston rod; 24. Slider; 25. Bending die; 26. Pressure sensor; 27. Force measuring member; 271. L-shaped connecting plate; 272. Round rod; 273. Spring; 274. Fixed block; 275. Force sensor; 3. Slide; 4. Placement block; 5. Bending pipe body; 6. Limit plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example

[0030] refer to Figure 1-Figure 7 A micro bending machine comprises: a workbench 1, a bending member 2 is fixed on the upper side of the workbench 1, a chute 3 is fixed on the upper side of the workbench 1, a limit plate 6 is fixed on the inner side of the chute 3, a placement block 4 is fixed on the upper side of the workbench 1, and a bending pipe body 5 is tightly fitted to the outer side wall of the placement block 4;

[0031] The bending member 2 includes a fixed plate 21, which is fixed on the upper side of the workbench 1. A cylinder 22 is fixed on the upper side of the fixed plate 21. A piston rod 23 is fixed to the output end of the cylinder 22. A slider 24 is fixed to one side of the piston rod 23. A reserved opening is opened at the bottom of the slider 24. A bending die 25 is fixed on the upper side of the slider 24. A pressure sensor 26 is installed at the inner force point of the bending die 25.

[0032] A force measuring member 27 is also installed on one side of the bending die 25 .

[0033] The force measuring member 27 includes an L-shaped connecting plate 271, and the upper side of the slide groove 3 is in contact with the L-shaped connecting plate 271. A round rod 272 is fixed to one side of the L-shaped connecting plate 271. The spring 273 is in close contact with the reserved opening at the bottom of the slider 24. A spring 273 is fixed to one side of the L-shaped connecting plate 271, and a fixed block 274 is fixed to the other side of the spring 273. The spring 273 is located on the outside of the round rod 272. A force sensor 275 is welded to one side of the slide groove 3. The L-shaped connecting plate 271 is in contact with the limit plate 6 and the force sensor 275.

[0034] The user activates the pneumatic cylinder 22. Cylinder 22, the power source of the miniature bending machine, operates by expanding the compressed air within it to propel the piston rod 23 in reciprocating motion. Upon receiving the activation signal, cylinder 22 rapidly pushes piston rod 23 forward. The movement of piston rod 23 causes the connected slider 24 to slide within the chute 3. As slider 24 slides, the bending die 25 gradually approaches the bending body 5. The bending die 25 is a core component of the miniature bending machine, its shape and size customized to the material, diameter, and desired bending angle of the bending body 5. Once the bending die 25 contacts the outer wall of the bending body 5, cylinder 22 continues to push piston rod 23 forward, applying pressure to the bending die 25. This pressure is transmitted through the bending die 25 to the bending body 5, causing it to plastically deform and complete the bending operation. During the bending process, the pressure sensor 26 plays a crucial role. It monitors the pressure applied by the bending die 25 on the bending body 5 in real time and feeds this information back to the external control system. The control system precisely regulates the thrust of the cylinder 22 according to the preset pressure range and bending requirements to ensure that the pressure fluctuates within a safe range.

[0035] There are at least four groups of bending members 2 and sliding grooves 3, which are staggered with each other.

[0036] The bottom of the slider 24 slides against the outer wall of the chute 3 .

[0037] The design of the slide groove 3 provides a stable sliding track for the slider 24, ensuring the stability and accuracy of the slider 24 during the bending process.

[0038] The outer wall of the bending die 25 is in close contact with the bending tube body 5 .

[0039] The elbow body 5 is located directly above the chute 3 .

[0040] The structure of the chute 3 is a rectangular arrangement.

[0041] The top of the placement block 4 is provided with an arc-shaped opening having the same diameter as the elbow body 5 .

[0042] The diameter of the arc-shaped opening matches the diameter of the elbow body 5 , so that the elbow body 5 can fit tightly on the placement block 4 , providing a solid foundation for subsequent bending operations.

[0043] Working principle: Please refer to Figure 1-Figure 7As shown, the user first needs to place the elbow body 5 to be processed into the arc-shaped opening of the placement block 4. This ensures the stability of the elbow body 5 during the bending process, avoiding inaccurate bending or equipment damage caused by shaking or displacement. The diameter of the arc-shaped opening matches the diameter of the elbow body 5, allowing the elbow body 5 to fit tightly against the placement block 4, providing a solid foundation for subsequent bending operations.

[0044] Next, the user activates the cylinder 22. As the power source of the micro-bending machine, the cylinder 22 works by expanding the compressed air inside it to push the piston rod 23 in reciprocating motion. When the cylinder 22 receives the start signal, it quickly pushes the piston rod 23 forward. The movement of the piston rod 23 drives the slider 24 connected to it to slide within the chute 3. The design of the chute 3 provides a stable sliding track for the slider 24, ensuring the stability and accuracy of the slider 24 during the bending process. As the slider 24 slides, the bending die 25 gradually approaches the bend body 5. The bending die 25 is one of the core components of the micro-bending machine, and its shape and size are customized according to the material, diameter, and required bending angle of the bend body 5. After the bending die 25 comes into contact with the outer wall of the bend body 5, the cylinder 22 continues to push the piston rod 23 forward, thereby applying pressure to the bending die 25. This pressure is transmitted to the bend body 5 through the bending die 25, causing it to undergo plastic deformation and complete the bending action. During the bending process, pressure sensor 26 plays a crucial role. It monitors the pressure applied by bending die 25 to the tube body 5 in real time and feeds this information back to the external control system. Based on the preset pressure range and bending requirements, the control system precisely regulates the thrust of cylinder 22, ensuring pressure fluctuations remain within a safe range. This function not only prevents damage to the tube body 5 or equipment failure caused by excessive pressure, but also improves bending accuracy and consistency.

[0045] In addition, a force measuring component 27 is installed on one side of the bending mold 25 to measure or monitor the force conditions of the mold during operation. The force measuring component 27 is mainly composed of an L-shaped connecting plate 271, a round rod 272, a spring 273, a fixed block 274 and a force sensor 275. During the bending operation, the bending mold 25 gradually approaches the bending pipe body 5 as the slider 24 slides in the slide groove 3. At this time, the reserved opening at the bottom of the slider 24 plays a key role. This reserved opening makes it fit tightly with the round rod 272. When the slider 24 moves to bend, the reserved opening will slide smoothly along the round rod 272. As it slides, it will hit the fixed block 274. This pushing action causes the fixed block 274 to squeeze the spring 273. The spring 273, as an elastic element, will deform during this process, thereby generating a certain reaction force. One end of the spring 273 is connected to the fixed block 274, and the other end is connected to the L-shaped connecting plate 271. At the same time, the L-shaped connecting plate 271 maintains a close contact with the slide 3 and the limit plate 6. Therefore, when the spring 273 is squeezed, it pushes the L-shaped connecting plate 271 to move between the slide 3 and the limit plate 6. The movement of the L-shaped connecting plate 271 directly acts on the force sensor 275. The force sensor 275 is a high-precision device that can accurately measure and record the force generated when the L-shaped connecting plate 271 moves. This data is crucial for accurately grasping the bending force and performing precise control. By real-time monitoring and analysis of the data provided by the force sensor 275, the operator can promptly adjust the parameters of the bending process, such as the thrust of the cylinder, the speed of the slider, etc., to ensure that the bending force is always maintained within a safe and effective range. In this way, not only can the damage to the bend body 5 caused by excessive pressure be avoided, but the accuracy and consistency of the bending operation can also be further improved.

[0046] After bending is complete, the cylinder 22 pushes the piston rod 23 backward, resetting the slide 24 and bending die 25. The resetting process is the reverse of the sliding process, but requires the same smoothness and accuracy. Once resetting is complete, the micro-bending machine is ready for the next bending operation. Users can adjust parameters such as the position of the placement block 4, change the size of the bending die 25, and adjust the thrust of the cylinder 22 to accommodate different bending specifications and requirements.

Claims

1. A micro bending machine comprising: A workbench (1), characterized in that a bending member (2) is fixed on the upper side of the workbench (1), a slide groove (3) is fixed on the upper side of the workbench (1), a limit plate (6) is fixed on the inner side of the slide groove (3), a placement block (4) is fixed on the upper side of the workbench (1), and the outer side wall of the placement block (4) is tightly fitted with a bent pipe body (5); The bending member (2) includes a fixed plate (21), the fixed plate (21) is fixed on the upper side of the workbench (1), a cylinder (22) is fixed on the upper side of the fixed plate (21), a piston rod (23) is fixed in the output direction of the cylinder (22), a slider (24) is fixed on one side of the piston rod (23), a reserved opening is provided at the bottom of the slider (24), a bending die (25) is fixed on the upper side of the slider (24), and a pressure sensor (26) is installed at the inner force point of the bending die (25); A force measuring component (27) is also installed on one side of the bending die (25).

2. A micro bending machine according to claim 1, characterized in that: The force measuring member (27) includes an L-shaped connecting plate (271), the upper side of the slide groove (3) is in contact with the L-shaped connecting plate (271), a round rod (272) is fixed on one side of the L-shaped connecting plate (271), a spring (273) is fixed on one side of the L-shaped connecting plate (271), and a fixed block (274) is fixed on the other side of the spring (273), the spring (273) is located on the outside of the round rod (272), the spring (273) is in close contact with the reserved opening opened at the bottom of the slider (24), a force sensor (275) is welded on one side of the slide groove (3), and the L-shaped connecting plate (271) is in contact with the limit plate (6) and the force sensor (275).

3. A micro bending machine according to claim 1, characterized in that: The bending components (2) and the sliding grooves (3) are each provided in at least four groups, and are arranged in an interlaced manner.

4. A micro bending machine according to claim 1 or 3, characterized in that: The bottom of the slider (24) and the outer side wall of the slide groove (3) are in close contact and sliding engagement.

5. The micro bending machine according to claim 1, characterized in that: The outer side wall of the bending die (25) is in close contact with the bent tube body (5).

6. The micro bending machine according to claim 1, characterized in that: The curved pipe body (5) is located directly above the chute (3).

7. The micro bending machine according to claim 1, characterized in that: The structure of the slide groove (3) is rectangular.

8. The micro bending machine according to claim 1, characterized in that: The top of the placement block (4) is provided with an arc-shaped opening having the same diameter as the elbow body (5).

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