Auxiliary support structure for stretch forming of curved aluminum plate

Abstract

The utility model discloses a curved surface aluminum plate stretch forming auxiliary support structure, more particularly in the curved surface aluminum plate production field, including frame, two symmetrical limit grooves are seted up in frame both sides, and the fixedly connected with mounting bracket on the frame, and the fixedly connected with push component between mounting bracket and frame, and the output fixedly connected with transmission assembly one end and connecting shaft one end of push component, and the other end fixedly connected with side plate of transmission assembly, and push component drives the linear motion of both sides' side plate through transmission assembly, and the bottom fixedly connected with the sliding block of side plate, and the sliding block is connected on the limit groove. The utility model discloses through the linkage and the collaborative drive of connecting shaft and realize the synchronous symmetrical movement of both sides' side plate and the collaborative movement of top plate, not only has improved the motion stability, also has guaranteed the accuracy and repeatability of positioning, makes the controllability and stability of whole forming process to obtain the remarkable promotion, provides reliable guarantee for the production high quality curved surface aluminum plate product.

Description

Technical Field

[0001] This utility model relates to the field of curved aluminum plate production technology, and more specifically, to an auxiliary support structure for the stretching and forming of curved aluminum plates. Background Technology

[0002] The auxiliary support structure for curved aluminum sheet stretching is a key device used in metal stamping processes to control material flow and prevent deformation defects. Its core function is to suppress wrinkling caused by tangential stress during the stretching process by applying controllable blanking force to the edge of the sheet. At the same time, it ensures uniform material extension through precisely designed gap parameters, thereby obtaining complex curved parts with stable dimensions and smooth surfaces.

[0003] Traditional auxiliary support structures for stretching and forming curved aluminum sheets use simple clamps for positioning. This design leads to inaccurate positioning and the inability to achieve dynamic adjustment. During the stretching process, it cannot automatically align itself according to the material flow state, and it cannot control the clamping force applied to the aluminum sheet during alignment. This results in unbalanced forces on the edge areas of the aluminum sheet, causing deformations such as wrinkles. At the same time, the single positioning structure is difficult to adapt to the processing requirements of aluminum sheets of different sizes, further exacerbating the fluctuation of forming quality and affecting the subsequent assembly accuracy. This seriously restricts the production efficiency and product consistency of high-precision curved aluminum sheets.

[0004] In summary, to achieve dynamic positioning of aluminum plates, it is necessary to address the problems of traditional curved aluminum plate stretching and forming auxiliary support structure positioning devices being too simple, resulting in substandard surface flatness of the formed parts, insufficient positioning accuracy, and affecting subsequent assembly precision, thus reducing production efficiency. The goal is to produce aluminum plates of better quality and with higher production efficiency. Utility Model Content

[0005] The problem that the auxiliary support structure for stretching and forming curved aluminum plates provided by this utility model aims to solve is that the positioning device of the traditional auxiliary support structure for stretching and forming curved aluminum plates is simple, which leads to the surface flatness of the formed parts not meeting the standards, the positioning not being accurate enough, and also affects the subsequent assembly accuracy and reduces production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary support structure for stretching and forming curved aluminum plates, including a frame, two symmetrical limiting grooves on both sides of the frame, a mounting frame fixedly connected to the frame, a pushing assembly installed between the mounting frame and the frame, a transmission assembly and a connecting shaft installed at the output end of the pushing assembly, a side plate fixedly connected to the output end of the transmission assembly, the pushing assembly driving the side plates on both sides to move linearly through the transmission assembly, a slider fixedly connected to the bottom of the side plate, the slider slidingly connected to the limiting groove, a top plate fixedly connected to the other end of the connecting shaft, and a pressure sensor fixedly connected to the top plate and the side plate near the mounting frame, the pressure sensor being used to detect the pressure value on the aluminum plate and send a signal to the control unit of the pushing assembly.

[0007] In a preferred embodiment, the actuating component includes a hydraulic cylinder fixedly connected between the mounting bracket and the frame. A hydraulic rod is fixedly connected to the output end of the hydraulic cylinder. The hydraulic cylinder is used to drive the hydraulic rod to perform linear motion. A connecting block is fixedly connected to one end of the hydraulic rod. The connecting block is fixedly connected to the input end of the transmission component and the coupling shaft.

[0008] In a preferred embodiment, the transmission assembly includes a first link fixedly connected to the connecting block, two symmetrically arranged second links rotatably connected to both ends of the first link, and a connecting support rotatably connected to the end of the second link away from the first link, the connecting support being fixedly connected to the side plate.

[0009] In a preferred embodiment, a compression spring is provided on the outer side of the coupling, and the compression spring is fixedly connected between the connecting block and the mounting bracket.

[0010] In a preferred embodiment, a molding plate is fixedly connected to the mounting frame, and a spiral liquid cooling channel is provided inside the molding plate. A cooler is fixedly connected to the frame, and the cooler is connected to the spiral liquid cooling channel through a pipe.

[0011] In a preferred embodiment, an adsorption plate is fixedly connected to the molding plate, the adsorption plate has multiple adsorption holes, and a vacuum pump is fixedly connected to the frame, the vacuum pump being connected to the adsorption plate through a pipe.

[0012] In a preferred embodiment, an electric push rod is fixedly connected to the center of the mounting frame, and a mold is fixedly connected to the output end of the electric push rod. The electric push rod is used to drive the mold to perform linear motion.

[0013] In a preferred embodiment, one end of a plurality of reset springs arranged in a circumferential array is fixedly connected to the bottom of the mold, and the other end of the reset springs is fixedly connected to the mounting bracket.

[0014] The beneficial effects of this utility model are as follows: This invention achieves synchronous symmetrical movement of the two side plates and coordinated movement of the top plate through the coordinated drive of the connecting rod and the connecting shaft. This not only improves the stability of the movement, but also ensures the accuracy and repeatability of the positioning. It can meet the application scenarios with high requirements for forming precision, and significantly improves the controllability and stability of the entire forming process, providing a reliable guarantee for the production of high-quality curved aluminum plate products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the pushing component structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the limiting groove structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the adsorption plate structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the molding plate of this utility model.

[0021] Figure 7 This is a schematic diagram of another embodiment of the limiting groove of this utility model.

[0022] The attached figures are labeled as follows: 1. Frame; 101. Limiting groove; 2. Mounting bracket; 301. Hydraulic cylinder; 302. Hydraulic rod; 303. Connecting block; 401. First connecting rod; 402. Second connecting rod; 403. Connecting support; 5. Side plate; 501. Slider; 6. Coupling shaft; 7. Top plate; 8. Pressure sensor; 9. Compression spring; 10. Forming plate; 1001. Spiral liquid cooling channel; 11. Cooler; 12. Adsorption plate; 1201. Adsorption hole; 13. Vacuum pump; 14. Electric push rod; 15. Mold; 16. Return spring; 17. Guide rod. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Refer to the instruction manual appendix Figures 1 to 6The auxiliary support structure for stretching and forming curved aluminum plates includes a frame 1. Two symmetrical limiting grooves 101 are opened on both sides of the frame 1. A mounting frame 2 is fixedly connected to the frame 1. A pushing component is installed between the mounting frame 2 and the frame 1. A transmission component and a connecting shaft 6 are installed at the output end of the pushing component. A side plate 5 is fixedly connected to the output end of the transmission component. The pushing component drives the side plates 5 on both sides to move linearly through the transmission component. A slider 501 is fixedly connected to the bottom of the side plate 5. The slider 501 is slidably connected to the limiting groove 101. A top plate 7 is fixedly connected to the other end of the connecting shaft 6. A pressure sensor 8 is fixedly connected to the top plate 7 and the side plate 5 near the mounting frame 2. The pressure sensor 8 is used to detect the pressure value of the aluminum plate and send a signal to the control unit of the pushing component.

[0025] It should be noted that a certain amount of space is left between the frame 1 and the mounting bracket 2 to allow the push assembly and transmission assembly to move normally. The limiting groove 101 on the frame 1 is a T-shaped slot, the size of which is adapted to the slider 501, and is used to limit the displacement of the side plate 5. At the same time, a through hole is provided at the contact point between the mounting bracket 2 and the connecting shaft 6. The size of the through hole is the same as that of the connecting shaft 6, so that the connecting shaft 6 passes through the through hole on the mounting bracket 2 to drive the top plate 7 to move linearly. The pressure sensor 8 is in direct contact with the aluminum plate and is used to detect the pressure on the aluminum plate when positioning it. The detection results are analyzed and processed, and control signals are transmitted to the push assembly to control the movement of the push assembly. The model of the pressure sensor 8 in this device is CYYZ11.

[0026] Another embodiment based on the limiting groove 101, please refer to Figure 7 Two through holes can be opened on both sides of the side plate 5, and a guide rod 17 can be fixedly connected between the frame 1 and the mounting bracket 2. The through holes on the side plate 5 can pass through the guide rod 17 and slide on the guide rod 17. The limiting groove 101 on the frame 1 and the slider 501 on the side plate 5 can be removed. The guide rod 17 can be used to limit the movement of the side plate 5, while avoiding long-term friction between the limiting groove 101 and the slider 501, which could lead to structural failure. This reduces the risk of the side plate 5 shifting and falling off, and allows the side plate 5 to work effectively for a long time.

[0027] Refer to the instruction manual appendix Figure 3 The pushing component includes a hydraulic cylinder 301 fixedly connected between the mounting frame 2 and the frame 1. The output end of the hydraulic cylinder 301 is fixedly connected to a hydraulic rod 302. The hydraulic cylinder 301 is used to push the hydraulic rod 302 to perform linear motion. One end of the connecting block 303 is fixedly connected to the hydraulic rod 302. The connecting block 303 is fixedly connected to the input end of the transmission component and the coupling shaft 6.

[0028] It should be noted that the hydraulic cylinder 301 is installed between the frame 1 and the mounting bracket 2, and pushes the hydraulic rod 302 to move linearly, thereby realizing the linear movement of the connecting block 303.

[0029] Refer to the instruction manual appendix Figure 3 The transmission assembly includes a first connecting rod 401 fixedly connected to the connecting block 303. Two symmetrically arranged second connecting rods 402 are rotatably connected to both ends of the first connecting rod 401. A connecting support 403 is rotatably connected to the end of the second connecting rod 402 away from the first connecting rod 401. The connecting support 403 is fixedly connected to the side plate 5.

[0030] It should be noted that the first connecting rod 401 has three through holes. The central through hole is fixedly connected to the connecting block 303 via a shaft, and the through holes on both sides are rotatably connected to the two second connecting rods 402 via shafts. The two second connecting rods 402 on both sides are the same size and are symmetrically distributed.

[0031] Refer to the instruction manual appendix Figure 2 A compression spring 9 is provided on the outside of the connecting shaft 6, and the compression spring 9 is fixedly connected between the connecting block 303 and the mounting bracket 2.

[0032] It should be noted that one end of the compression spring 9 is mounted on the connecting block 303 and deforms as the connecting block 303 moves, while the other end is fixedly connected to the mounting bracket 2 to limit the movement of the connecting block 303 and absorb the vibration generated by the movement.

[0033] Refer to the instruction manual appendix Figure 6 A molding plate 10 is fixedly connected to the mounting frame 2. The molding plate 10 has a spiral liquid cooling channel 1001 inside. A cooler 11 is fixedly connected to the frame 1. The cooler 11 is connected to the spiral liquid cooling channel 1001 through a pipe.

[0034] It should be noted that the forming plate 10 has a through hole in the middle, and a spiral liquid cooling channel 1001 is wound around the outer ring of the through hole. The cooler 11 provides coolant to the spiral liquid cooling channel 1001 to absorb the heat generated by the aluminum plate forming in the through hole and to cool it down quickly.

[0035] Refer to the instruction manual appendix Figure 6 An adsorption plate 12 is fixedly connected to the molding plate 10. The adsorption plate 12 has multiple adsorption holes 1201. A vacuum pump 13 is fixedly connected to the frame 1. The vacuum pump 13 is connected to the adsorption plate 12 through a pipe.

[0036] It should be noted that the adsorption plate 12 is in direct contact with the aluminum plate. When fixing the aluminum plate, the vacuum pump 13 removes the air between the adsorption holes 1201 on the adsorption plate 12 and the aluminum plate through the pipeline, forming a vacuum state. A pressure difference is formed above and below the aluminum plate, which firmly fixes the aluminum plate.

[0037] Refer to the instruction manual appendix Figure 6An electric push rod 14 is fixedly connected to the center of the mounting frame 2. The output end of the electric push rod 14 is fixedly connected to the mold 15. The electric push rod 14 is used to drive the mold 15 to perform linear motion.

[0038] It should be noted that the electric push rod 14 is installed in the center of the mounting frame 2, passes through the central through hole of the molding plate 10 and the adsorption plate 12, and is connected to an external power source, thereby pushing the mold 15 to perform linear motion.

[0039] In another embodiment based on mold 15, the fixed installation method of mold 15 on electric push rod 14 can be changed to a detachable installation structure. Specifically, mold 15 can be installed on electric push rod 14 with bolts, which facilitates the replacement of mold 15 in the future and adapts to various curved surface stretching requirements.

[0040] Refer to the instruction manual appendix Figure 6 The bottom of the mold 15 is fixedly connected to one end of a plurality of reset springs 16 arranged in a circular array, and the other end of the reset springs 16 is fixedly connected to the mounting bracket 2.

[0041] It should be noted that one end of the return spring 16 is mounted on the mounting bracket 2, and the other end is mounted on the bottom of the mold 15. It deforms as the mold 15 moves, providing support for the mold 15 while absorbing the vibration generated during the movement, making the movement of the mold 15 more stable.

[0042] Working principle: The aluminum plate to be stretched is placed on the adsorption plate 12. The hydraulic cylinder 301 outputs power to drive the hydraulic rod 302 to move linearly, thereby causing the connecting block 303 to drive the first connecting rod 401 and the connecting shaft 6 to move linearly. The first connecting rod 401 drives the second connecting rods 402 on both sides to rotate. The second connecting rods 402 drive the side plates 5 to move linearly through the connecting support 403, causing the slider 501 to slide on the limiting groove 101. The connecting shaft 6 drives the top plate 7 to move linearly until the two side plates 5 and the top plate 7 contact the aluminum plate. At this time, the pressure sensor 8 detects the pressure on the aluminum plate. The pressure is measured, and the measurement results are analyzed and converted into a control signal for the hydraulic cylinder 301, causing the hydraulic cylinder 301 to stop power output and complete the positioning of the aluminum plate. Then, the vacuum pump 13 is used to remove the air between the adsorption hole 1201 and the aluminum plate, so that a pressure difference is formed between the upper and lower parts of the aluminum plate, which firmly fixes the aluminum plate. Then, in conjunction with the upper pressing device, the electric push rod 14 retracts, driving the mold 15 to descend and perform curved stretching and forming of the aluminum plate. At the same time, coolant can be introduced into the spiral liquid cooling channel 1001 of the forming plate 10 through the cooler 11 to absorb the heat generated during the stretching process.

[0043] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. 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, and these all fall within the protection scope of this utility model.

Claims

1. An auxiliary support structure for stretching and forming curved aluminum plates, characterized in that: Includes a frame (1), with two symmetrical limiting grooves (101) on both sides of the frame (1). A mounting frame (2) is fixedly connected to the frame (1). A push assembly is installed between the mounting frame (2) and the frame (1). One end of a transmission assembly and one end of a connecting shaft (6) are installed at the output end of the push assembly. A side plate (5) is fixedly connected at the output end of the transmission assembly. The push assembly drives the side plates (5) on both sides to move linearly through the transmission assembly. A slider (501) is fixedly connected to the bottom of the side plate (5). The slider (501) is slidably connected to the limiting groove (101). A top plate (7) is fixedly connected to the other end of the connecting shaft (6). A pressure sensor (8) is fixedly connected to the top plate (7) and the side plate (5) near the mounting frame (2). The pressure sensor (8) is used to detect the pressure value of the aluminum plate and send a signal to the control unit of the push assembly.

2. The auxiliary support structure for curved aluminum plate stretching and forming according to claim 1, characterized in that: The driving component includes a hydraulic cylinder (301) fixedly connected between the mounting bracket (2) and the frame (1). The output end of the hydraulic cylinder (301) is fixedly connected to a hydraulic rod (302). The hydraulic cylinder (301) is used to push the hydraulic rod (302) to perform linear motion. One end of the connecting block (303) is fixedly connected to the hydraulic rod (302). The connecting block (303) is fixedly connected to the input end of the transmission component and the coupling shaft (6).

3. The auxiliary support structure for stretching and forming curved aluminum plates according to claim 2, characterized in that: The transmission assembly includes a first connecting rod (401) fixedly connected to the connecting block (303), two symmetrically arranged second connecting rods (402) rotatably connected to both ends of the first connecting rod (401), and a connecting support (403) rotatably connected to the end of the second connecting rod (402) away from the first connecting rod (401), and the connecting support (403) is fixedly connected to the side plate (5).

4. The auxiliary support structure for stretching and forming curved aluminum plates according to claim 3, characterized in that: A compression spring (9) is provided on the outside of the connecting shaft (6), and the compression spring (9) is fixedly connected between the connecting block (303) and the mounting bracket (2).

5. The auxiliary support structure for stretching and forming curved aluminum plates according to claim 1, characterized in that: A molding plate (10) is fixedly connected to the mounting bracket (2). The molding plate (10) has a spiral liquid cooling channel (1001) inside. A cooler (11) is fixedly connected to the frame (1). The cooler (11) is connected to the spiral liquid cooling channel (1001) through a pipe.

6. The auxiliary support structure for stretching and forming curved aluminum plates according to claim 5, characterized in that: An adsorption plate (12) is fixedly connected to the molding plate (10). The adsorption plate (12) has multiple adsorption holes (1201). A vacuum pump (13) is fixedly connected to the frame (1). The vacuum pump (13) is connected to the adsorption plate (12) through a pipe.

7. The auxiliary support structure for stretching and forming curved aluminum plates according to claim 1, characterized in that: The mounting bracket (2) is fixedly connected to an electric push rod (14) at its center. The output end of the electric push rod (14) is fixedly connected to a mold (15). The electric push rod (14) is used to drive the mold (15) to perform linear motion.

8. The auxiliary support structure for stretching and forming curved aluminum plates according to claim 7, characterized in that: The bottom of the mold (15) is fixedly connected to one end of a plurality of reset springs (16) arranged in a circular array, and the other end of the reset springs (16) is fixedly connected to the mounting bracket (2).

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