A bending and forming device for aluminum alloy parts of urban rail vehicles

Abstract

This utility model relates to the field of urban rail vehicle component processing technology, and discloses a bending and forming device for aluminum alloy parts of urban rail vehicles. The device includes a frame, a material support platform fixedly mounted on the upper end of the frame, a downward hydraulic rod fixedly mounted on the upper end of the frame, and a downward pressure plate fixedly connected to the lower end of the hydraulic rod. A rotating bending hydraulic rod is mounted on the lower end of the frame, and a bending plate is rotatably connected to the upper end of the hydraulic rod. A switching mechanism is provided inside the downward pressure plate, which changes the concave shape of the material by switching the shape of the contact point with the material. This bending and forming device for aluminum alloy parts of urban rail vehicles, by setting a switching mechanism inside the downward pressure plate and using a switching motor to drive the central shaft to rotate, can easily switch the contact between the arc-shaped contact rod and the right-angle contact rod with the material, thereby changing the concave shape of the material. Compared with traditional devices, this eliminates the need to replace the entire contact component or even the mold.

Description

Technical Field

[0001] This utility model relates to the field of urban rail vehicle component processing technology, specifically to a bending and forming device for aluminum alloy parts of urban rail vehicles. Background Technology

[0002] Against the backdrop of the booming development of modern urban rail transit, the manufacturing process of urban rail vehicles is constantly pursuing efficiency, precision and intelligence. Aluminum alloys, due to their excellent properties such as light weight, high strength and corrosion resistance, have been widely used in the body structure and component manufacturing of urban rail vehicles. Bending and forming, as one of the key processes in aluminum alloy parts processing, directly affects the precision and quality of the parts, and thus relates to the overall performance and safety of urban rail vehicles.

[0003] Currently, common bending and forming equipment for aluminum alloy parts in urban rail vehicles typically uses a fixed-shape contact component to bend the aluminum alloy parts, achieving a specific concave angle shape. However, this traditional bending and forming equipment has significant limitations. The shape of the contact point with the material is fixed, making it impossible to flexibly switch the concave angle shape of the material according to different production needs. When processing aluminum alloy parts with different concave angle shapes, it is often necessary to replace the entire contact component or even the mold, which is not only cumbersome and time-consuming, but also increases production costs and reduces production efficiency.

[0004] In addition, existing bending forming equipment also has shortcomings in material conveying and positioning. Traditional equipment mostly relies on manual labor or simple mechanical structures to convey and position materials, which makes it difficult to achieve accurate positioning and efficient conveying of materials. This can easily lead to problems such as material deviation and skewing during processing, affecting the accuracy and quality of bending forming.

[0005] With the increasing demands for processing precision and production efficiency of aluminum alloy parts in the urban rail vehicle manufacturing industry, there is an urgent need for a bending and forming device that can flexibly switch the concave shape of materials and achieve precise material conveying and positioning. Utility Model Content

[0006] The purpose of this utility model is to provide a bending and forming device for aluminum alloy parts of urban rail vehicles, so as to solve the problems mentioned in the background art that traditional bending and forming devices cannot flexibly switch the concave corner shape of materials, have low material conveying and positioning accuracy, resulting in insufficient processing efficiency and quality.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bending and forming device for aluminum alloy parts of urban rail vehicles, comprising a frame, a material support platform fixedly provided at the upper end of the frame, a downward hydraulic rod fixedly installed at the upper end of the frame, and a downward pressure plate fixedly connected to the lower end of the downward hydraulic rod, a rotating bending hydraulic rod installed at the lower end of the frame, and a bending plate rotatably connected to the upper end of the bending hydraulic rod, wherein a switching mechanism is provided inside the downward pressure plate, and the shape of the concave corner of the material is changed by switching the shape of the contact point with the material;

[0008] The switching mechanism includes: a switching motor, which is fixedly installed on one side surface of the lower pressure plate, and a central shaft is fixedly connected to one end of the output shaft of the switching motor. An arc-shaped abutment rod and a right-angle abutment rod are fixedly provided on the outer surface of the central shaft. A switching electric push rod is fixedly installed inside the lower end of the lower pressure plate, and one end of the switching electric push rod passes through the outer surface of the lower end of the lower pressure plate. A pressure plate is fixedly connected to the end of the switching electric push rod located outside the lower pressure plate.

[0009] A support frame is fixedly installed at the upper end of the frame. Lifting electric push rods are fixedly installed on the inner bottom surfaces of both ends of the support frame. A lifting frame is fixedly installed at the upper end of the lifting electric push rods. A rotating material roller is installed on the inner surface of the lifting frame, and a material motor is fixedly installed on the outer surface of one end of the lifting frame.

[0010] Preferably, the arc-shaped contact rod and the right-angle contact rod are symmetrically arranged about the central axis.

[0011] By adopting the above technical solution, it can be ensured that the arc-shaped contact rod and the right-angle contact rod are subjected to uniform force during the switching process, maintain the stability and balance of the central axis rotation, avoid switching jamming or positioning deviation caused by structural asymmetry, and thus ensure the accuracy of the concave corner shape switching.

[0012] Preferably, the upper surface of the pressing plate is in contact with the lower end face of the lower pressing plate, and the end of the pressing plate facing the interior of the lower pressing plate is arc-shaped.

[0013] By adopting the above technical solution, the fitting design of the clamping plate and the lower pressure plate can enhance the stability when the abutment rod comes into contact with the material. At the same time, the arc-shaped end can adapt to the shape of the abutment rod, avoiding hard extrusion damage to the surface of the aluminum alloy parts when clamping the material, thus ensuring the surface quality of the material.

[0014] Preferably, the support frame and the bending plate are rotatably connected, the support frame is hollow, and a notch is provided in the center of the upper end of the support frame.

[0015] Using the above technical solution, the rotating connection between the support frame and the bending plate can be coordinated with the action of the bending hydraulic rod, so that the bending plate is not interfered with by the support frame when it rotates and bends. The hollow structure and notch design provide a channel for the material conveying roller to transport materials, which facilitates the precise positioning of materials to the bending area.

[0016] Preferably, the lifting frame and the support frame are slidably connected, and the output shaft of the conveyor motor is fixedly connected to the rotating shaft of the conveyor roller.

[0017] Using the above technical solution, the sliding connection between the lifting frame and the support frame can flexibly adjust the height of the conveyor roller through the lifting electric push rod to adapt to materials of different thicknesses. The rigid connection between the conveyor motor and the conveyor roller can ensure the stability of power transmission and realize uniform and precise material conveying.

[0018] Preferably, the outer diameter of the conveyor roller is smaller than the width of the notch opened in the middle of the upper end of the support frame, and the conveyor roller is located directly below the notch opened in the upper end of the support frame.

[0019] The above technical solution, with the outer diameter of the conveyor roller being smaller than the width of the notch, allows it to pass smoothly through the notch of the support frame during the lifting process, avoiding collision with the edge of the notch. Precise positioning ensures that the conveyor roller and the material are in full contact, and the material is stably conveyed to the designated position by using friction.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the bending and forming device for aluminum alloy parts of urban rail vehicles:

[0021] 1. By setting a switching mechanism inside the lower pressure plate and using a switching motor to drive the central shaft to rotate, the contact between the arc-shaped contact rod and the right-angle contact rod with the material can be easily switched, thereby changing the concave shape of the material. Compared with the traditional device that requires replacing the entire contact part or even the mold, this greatly reduces the production preparation time, avoids the time-consuming and labor-intensive problems caused by frequent mold changes, significantly improves production efficiency, and reduces production costs. Under diversified production needs, it can quickly respond to the processing of aluminum alloy parts with different concave shapes, effectively meeting the diversified design requirements of aluminum alloy parts in urban rail vehicle manufacturing.

[0022] 2. The material conveying structure, consisting of a support frame at the upper end of the frame, a lifting electric push rod, a lifting frame, a conveyor roller, and a conveyor motor, enables precise conveying and positioning of aluminum alloy parts. The lifting electric push rod can adjust the height of the lifting frame, and the conveyor motor drives the conveyor roller to rotate, smoothly conveying the material to the designated position. This avoids problems such as material deviation and skewing caused by traditional manual or simple mechanical conveying structures. Stable and precise material conveying and positioning ensure the accuracy of the position of the aluminum alloy parts during the bending and forming process, thereby guaranteeing the precision and quality of bending and forming, and improving the overall processing quality of aluminum alloy parts for urban rail vehicles.

[0023] 3. The arc-shaped and right-angled contact rods are symmetrically arranged about the central axis of the central shaft, making the switching process more stable and balanced. The upper surface of the pressure plate is in contact with the lower end of the lower pressure plate, and the end of the pressure plate facing the interior of the lower pressure plate is arc-shaped. During the operation of the switching mechanism, it can ensure the tight contact between the contact rod and the material, and avoid damage to the surface of the material. The support frame and the bending plate are rotatably connected, and the support frame is hollow with a notch in the middle of the upper end to facilitate material conveying and bending operations. The reasonable cooperation and structural design between the components enhance the practicality and reliability of the entire device, making it well applicable and have long-term stable working performance in the bending and forming of aluminum alloy parts for urban rail vehicles. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram showing the connection between the frame, the lower hydraulic rod, and the lower pressure plate of this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the frame, the material support platform, and the lower pressure plate of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the connection between the bent plate and the support frame of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the connection between the lower pressure plate, the switching electric push rod, and the clamping plate of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the connection between the electric lifting push rod, the lifting frame, and the conveyor roller of this utility model.

[0030] In the diagram: 1. Frame; 2. Material support platform; 3. Lower hydraulic rod; 4. Lower pressure plate; 5. Switching motor; 6. Central shaft; 7. Arc-shaped contact rod; 8. Right-angle contact rod; 9. Switching electric push rod; 10. Pressure plate; 11. Bending hydraulic rod; 12. Bending plate; 13. Support frame; 14. Lifting electric push rod; 15. Lifting frame; 16. Material roller; 17. Material motor. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-6 This utility model provides a technical solution: a bending and forming device for aluminum alloy parts of urban rail vehicles.

[0033] Example 1: This example discloses: a frame 1, a material support platform 2 fixedly installed at the upper end of the frame 1, a downward hydraulic rod 3 fixedly installed at the upper end of the frame 1, and a downward pressure plate 4 fixedly connected to the lower end of the downward hydraulic rod 3, a rotating bending hydraulic rod 11 installed at the lower end of the frame 1, and a bending plate 12 rotatably connected to the upper end of the bending hydraulic rod 11, and a switching mechanism is provided inside the downward pressure plate 4, which changes the concave corner shape of the material by switching the shape of the contact point with the material;

[0034] The switching mechanism includes: a switching motor 5, which is fixedly installed on one side surface of the lower pressure plate 4, and a central shaft 6 is fixedly connected to one end of the output shaft of the switching motor 5. An arc-shaped abutment rod 7 and a right-angle abutment rod 8 are fixedly provided on the outer surface of the central shaft 6. A switching electric push rod 9 is fixedly installed inside the lower end of the lower pressure plate 4, and one end of the switching electric push rod 9 penetrates the outer surface of the lower end of the lower pressure plate 4. A pressing plate 10 is fixedly connected to the end of the switching electric push rod 9 located outside the lower pressure plate 4.

[0035] The arc-shaped abutment rod 7 and the right-angle abutment rod 8 are symmetrically arranged about the central axis of the central axis 6;

[0036] The upper surface of the clamping plate 10 is in contact with the lower end face of the lower pressure plate 4, and the end of the clamping plate 10 facing the interior of the lower pressure plate 4 is arc-shaped.

[0037] When it is necessary to change the bending concave shape of the aluminum alloy parts on the material support platform 2, the switching motor 5 starts working. The output shaft of the switching motor 5 drives the central shaft 6 to rotate. Since the arc-shaped contact rod 7 and the right-angle contact rod 8 are fixedly set on the outside of the central shaft 6, the position of the arc-shaped contact rod 7 and the right-angle contact rod 8 can be switched as the central shaft 6 rotates, switching to the required contact position between the contact rod and the material. At the same time, the switching electric push rod 9 retracts, driving the pressure plate 10 to move. One end of the pressure plate 10 is in contact with the contact rod, ensuring that the contact rod is in close contact with the material. The downward hydraulic rod 3 is activated, pushing the downward pressure plate 4 to move downward, so that the corresponding contact rod and pressure plate 10 contact the aluminum alloy parts. Subsequently, the bending hydraulic rod 11 at the lower end of the frame 1 pushes the bending plate 12 to rotate, bending the aluminum alloy parts. Due to the different shapes of the contact rods, the shape of the concave corner of the material is changed. Compared with traditional devices, there is no need to replace the entire contact part or mold, which greatly shortens the production preparation time and improves production efficiency.

[0038] Example 2: This example is based on Example 1: A support frame 13 is fixedly installed at the upper end of the frame 1. Lifting electric push rods 14 are fixedly installed on the inner bottom surfaces of both ends of the support frame 13. A lifting frame 15 is fixedly installed at the upper end of the lifting electric push rods 14. A rotating material roller 16 is installed on the inner surface of the lifting frame 15. A material motor 17 is fixedly installed on the outer surface of one end of the lifting frame 15.

[0039] The support frame 13 is rotatably connected to the bending plate 12, and the support frame 13 is hollow, with a notch in the middle of the upper end of the support frame 13;

[0040] The lifting frame 15 and the support frame 13 are slidably connected, and the output shaft of the conveyor motor 17 is fixedly connected to the rotating shaft of the conveyor roller 16;

[0041] The outer diameter of the conveyor roller 16 is smaller than the width of the notch opened in the middle of the upper end of the support frame 13, and the conveyor roller 16 is located directly below the notch opened in the upper end of the support frame 13.

[0042] During material conveying, the lifting electric push rod 14 is activated. The lifting electric push rod 14, through its telescopic movement, drives the lifting frame 15 to slide up and down within the support frame 13, thereby adjusting the height of the conveyor roller 16. The conveyor motor 17 is started, and its output shaft drives the conveyor roller 16 to rotate. When the conveyor roller 16 rotates, it contacts the aluminum alloy material and conveys the material forward by friction. Since the support frame 13 is rotatably connected to the bending plate 12, and the support frame 13 is hollow with a notch in the middle of the upper end, the conveyor roller 16 can smoothly convey the material through the notch. When the material reaches the designated position, the lower hydraulic rod 3 pushes the lower pressure plate 4 to press down. Combined with the switching mechanism in Embodiment 1, the material is pressed and the concave shape is changed. Then, the bending hydraulic rod 11 drives the bending plate 12 to rotate to complete the bending operation. Throughout the process, the precise material conveying and positioning structure avoids material deviation and skew, ensuring the accuracy and quality of bending and forming.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending and forming device for aluminum alloy parts of urban rail vehicles, comprising a frame (1), wherein a material support platform (2) is fixedly provided at the upper end of the frame (1), a downward hydraulic rod (3) is fixedly installed at the upper end of the frame (1), and a downward pressure plate (4) is fixedly connected to the lower end of the downward hydraulic rod (3), and a rotating bending hydraulic rod (11) is installed at the lower end of the frame (1), and a bending plate (12) is rotatably connected to the upper end of the bending hydraulic rod (11), characterized in that: The lower pressure plate (4) is equipped with a switching mechanism inside, which changes the shape of the concave corner of the material by switching the shape of the contact point with the material; The switching mechanism includes: a switching motor (5), which is fixedly installed on one side surface of the lower pressure plate (4), and a central shaft (6) is fixedly connected to one end of the output shaft of the switching motor (5). An arc-shaped contact rod (7) and a right-angle contact rod (8) are fixedly provided on the outer surface of the central shaft (6). A switching electric push rod (9) is fixedly installed inside the lower end of the lower pressure plate (4), and one end of the switching electric push rod (9) penetrates the outer surface of the lower end of the lower pressure plate (4). A pressure plate (10) is fixedly connected to the end of the switching electric push rod (9) located outside the lower pressure plate (4).

2. The bending and forming device for aluminum alloy parts of urban rail vehicles according to claim 1, characterized in that: The upper end of the frame (1) is fixedly provided with a support frame (13), and the inner bottom surfaces of both ends of the support frame (13) are fixedly installed with lifting electric push rods (14). The upper end of the lifting electric push rods (14) is fixedly provided with a lifting frame (15), and the inner surface of the lifting frame (15) is equipped with a rotating material roller (16), and the outer surface of one end of the lifting frame (15) is fixedly installed with a material motor (17).

3. The bending and forming device for aluminum alloy parts of urban rail vehicles according to claim 1, characterized in that: The arc-shaped contact rod (7) and the right-angle contact rod (8) are symmetrically arranged about the central axis (6).

4. The bending and forming device for aluminum alloy parts of urban rail vehicles according to claim 1, characterized in that: The upper surface of the pressing plate (10) is in contact with the lower end face of the lower pressing plate (4), and the end of the pressing plate (10) facing the interior of the lower pressing plate (4) is arc-shaped.

5. The bending and forming device for aluminum alloy parts of urban rail vehicles according to claim 2, characterized in that: The support frame (13) is rotatably connected to the bending plate (12), and the support frame (13) is hollow, with a notch in the middle of the upper end of the support frame (13).

6. The bending and forming device for aluminum alloy parts of urban rail vehicles according to claim 2, characterized in that: The lifting frame (15) and the support frame (13) are slidably connected, and the output shaft of the conveyor motor (17) is fixedly connected to the rotating shaft of the conveyor roller (16).

7. The bending and forming device for aluminum alloy parts of urban rail vehicles according to claim 2, characterized in that: The outer diameter of the conveyor roller (16) is smaller than the width of the notch opened in the middle of the upper end of the support frame (13), and the conveyor roller (16) is located directly below the notch opened in the upper end of the support frame (13).

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