Fixing device for stamping inner plate of car trunk lid
By designing a stamping and fixing device for the inner panel of a car trunk lid, and using screws and lead screws in conjunction with adjusting plates and movable plates, the problem of inaccurate positioning in sheet metal stamping was solved, enabling flexible adjustment and edge protection, and improving stamping efficiency and positioning accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏德钜汽车科技有限公司
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-08
AI Technical Summary
Existing automotive sheet metal stamping equipment requires customized positioning structures based on the shape of the sheet metal, which is costly and not easy to adjust flexibly, resulting in inaccurate positioning of the sheet metal during the stamping process.
A stamping and fixing device for the inner panel of a car trunk lid was designed. It uses components such as a stamping table, connecting block, adjusting plate and movable plate. Through the cooperation of screw and lead screw, the flexible positioning and height adjustment of the sheet metal can be realized. Combined with buffer pad and damper, the edges of the sheet metal are protected.
It achieves accurate positioning of sheet metal during the stamping process, avoids skewing, expands the scope of application, protects the edges of sheet metal from damage, and reduces the cost and complexity of the positioning structure.
Smart Images

Figure CN224208893U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts processing technology, specifically relating to a stamping and fixing device for the inner panel of an automotive trunk lid. Background Technology
[0002] In automobile manufacturing, sheet metal stamping is a frequently used process. By stamping sheet metal, a one-piece forming effect can be achieved, reducing weld seams between sheet metal parts, thereby increasing the strength of the sheet metal. Furthermore, the stamping process has high production efficiency for automotive sheet metal.
[0003] In the current automotive sheet metal stamping process, different shapes of sheet metal require corresponding positioning structures to ensure that the sheet metal blank is placed in the correct position on the stamping table. However, such stamping tables are expensive and need to be customized or molded according to the shape of the sheet metal after forming. They are not convenient to be flexibly adjusted according to the stamping shape, thus reducing their practicality. Utility Model Content
[0004] The purpose of this utility model is to provide a stamping and fixing device for the inner panel of a car trunk lid, which can adjust the positioning position of the sheet metal according to the shape of the formed sheet metal, so that the sheet metal can be in an accurate position during the stamping process.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] A stamping and fixing device for an inner panel of a car trunk lid includes a stamping table. The top surface of the stamping table has several evenly distributed rectangular slots. Several columns are fixedly connected to the bottom surface of the stamping table. A common fixing plate is fixedly connected to the bottom end of each column. A bracket is fixedly connected to the bottom surface of the fixing plate. A connecting block is disposed within each rectangular slot. An adjusting component is disposed on the bottom surface of each connecting block. An adjusting plate, which is U-shaped, is slidably connected to the top surface of the connecting block. A docking component is disposed between the adjusting plate and the connecting block. A movable plate is disposed inside the adjusting plate. The movable plate is slidably connected to the adjusting plate. A damper is assembled between the adjusting plate and the movable plate.
[0007] Furthermore, the adjustment assembly includes several screws, and the top surface of the fixing plate has several evenly distributed screw holes. The screws are threadedly connected to the screw holes, and the top ends of the screws are rotatably connected to the bottom surface of the connecting block.
[0008] Furthermore, the docking assembly includes a slider fixedly connected to the bottom surface of the adjustment plate. The connecting block and the top surface of the adjustment plate are respectively provided with sliding grooves. The slider is slidably connected to the sliding grooves. The side wall of the slider is provided with a threaded hole. A lead screw is threadedly connected to the threaded hole. The lead screw is threadedly connected to the threaded hole. Both ends of the lead screw are rotatably connected to the side wall of the sliding groove. The connecting block and the side wall of the adjustment plate are provided with a receiving groove. One end of the lead screw extends into the receiving groove.
[0009] Furthermore, the side wall of the adjusting plate is provided with a positioning groove, and the movable plate passes through the positioning groove.
[0010] Furthermore, buffer pads are fixedly connected to the side walls of the movable plate.
[0011] Furthermore, each of the rectangular grooves is provided with a sealing plate, which is flush with the surface of the stamping table.
[0012] The technical effects achieved by this utility model are as follows:
[0013] This utility model discloses a stamping and fixing device for the inner panel of a car trunk lid. Through the cooperation of a stamping table, connecting blocks, adjusting plates, and movable plates, the device can adjust the positioning position of the sheet metal according to the shape of the formed sheet metal, so that the sheet metal can be in an accurate position during the stamping process and avoid the phenomenon of skewing during stamping. In addition, multiple adjusting plates can be spliced together according to the height of the sheet metal, thereby expanding the scope of application. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the movable plate in an embodiment of this utility model;
[0016] Figure 3 This is a schematic diagram of the disassembled structure of the movable plate in an embodiment of this utility model;
[0017] Figure 4 This is an embodiment of the present utility model. Figure 2 Enlarged view of point A in the image.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Stamping table; 2. Rectangular groove; 3. Column; 4. Fixing plate; 5. Bracket; 6. Connecting block; 7. Screw hole; 8. Screw; 9. Adjusting plate; 10. Movable plate; 11. Damper; 12. Slider; 13. Slide groove; 14. Lead screw; 15. Storage groove; 16. Positioning groove; 17. Buffer pad; 18. Sealing plate. Detailed Implementation
[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0021] like Figures 1-4 As shown, a stamping and fixing device for the inner panel of a car trunk lid includes a stamping table 1. The top surface of the stamping table 1 has several evenly distributed rectangular grooves 2. Several columns 3 are fixedly connected to the bottom surface of the stamping table 1. The bottom end of each column 3 is fixedly connected to a common fixing plate 4. The bottom surface of the fixing plate 4 is fixedly connected to a bracket 5. A connecting block 6 is provided in the rectangular groove 2. An adjustment component is provided on the bottom surface of the connecting block 6. An adjustment plate 9 is slidably connected to the top surface of the connecting block 6. The adjustment plate 9 is U-shaped. A docking component is provided between the adjustment plate 9 and the connecting block 6. A movable plate 10 is provided inside the adjustment plate 9. The movable plate 10 is slidably connected to the adjustment plate 9. A damper 11 is assembled between the adjustment plate 9 and the movable plate 10.
[0022] like Figure 1 and Figure 2 As shown, the adjustment assembly includes several screws 8, and the top surface of the fixed plate 4 has several evenly distributed screw holes 7. The screws 8 are threadedly connected to the screw holes 7, and the top ends of the screws 8 are rotatably connected to the bottom surface of the connecting block 6. The adjustment assembly allows for adjustment of one or more screws 8 according to the local height of the sheet metal, thereby driving the connecting blocks 6 at different positions to move up and down, facilitating the adaptation of the movable plate 10 to sheet metal parts of different heights. Furthermore, the top ends of the screws 8 and the bottom of the connecting blocks 6 are in a contact-type rotatable connection, serving both support and adjustment functions.
[0023] like Figure 2 and Figure 4 As shown, the docking assembly includes a slider 12 fixedly connected to the bottom surface of the adjustment plate 9. The top surfaces of the connecting block 6 and the adjustment plate 9 are respectively provided with sliding grooves 13. The slider 12 is slidably connected to the sliding grooves 13. The side wall of the slider 12 is provided with a threaded hole. A lead screw 14 is threadedly connected to the threaded hole. The lead screw 14 is threadedly connected to the threaded hole. Both ends of the lead screw 14 are rotatably connected to the side wall of the sliding groove 13. The connecting block 6 and the side wall of the adjustment plate 9 are provided with a storage groove 15. One end of the lead screw 14 extends into the storage groove 15.
[0024] There are several adjusting plates 9 and movable plates 10. When adjusting plates 9 need to be spliced and combined, the slider 12 on the upper adjusting plate 9 is inserted into the groove 13 on the lower adjusting plate 9, and the lead screw 14 is passed through the storage groove 15 and the slider 12 to control the position of adjusting plates 9, which makes it convenient to position and fix the small gap between the movable plate 10 and the sheet metal.
[0025] like Figure 3As shown, the side wall of the adjusting plate 9 has a positioning groove 16, and the movable plate 10 passes through the positioning groove 16. When the movable plate 10 is subjected to compressive force, the movable plate 10 moves to the inner side of the adjusting plate 9, while the damper 11 provides damping, and the movable plate 10 moves translationally within the positioning groove 16, resulting in high stability.
[0026] All side walls of the movable plate 10 are fixedly connected with buffer pads 17. The buffer pads 17 are made of rubber, silicone and composite materials, which can protect the edge of the sheet metal and reduce damage and deformation caused by rigid contact or compression.
[0027] like Figure 1 As shown, each rectangular groove 2 is equipped with a sealing plate 18, which is flush with the surface of the stamping table 1. The sealing plates 18 are used to seal any unsuitable rectangular grooves 2 according to the shape of the stamping die, thereby increasing the strength of the stamping table 1. After the die is fixed to the stamping table 1, the sealing plates 18 are positioned between the die and the stamping table 1, providing additional support.
[0028] The working principle of this utility model is as follows: First, select an appropriate number of connecting blocks 6 according to the shape of the sheet metal and insert them into the corresponding rectangular slots 2. Then, insert the screw 8 into the screw hole 7 corresponding to the position of the connecting block 6 so that the screw 8 abuts against the bottom surface of the connecting block 6. After that, adjust the height of the adjusting plate 9 according to the height of the sheet metal and the positioning position. Rotating the screw 8 can lift the connecting block 6. If there is a small gap between the movable plate 10 and the sheet metal, the screw 14 can be rotated to drive the slider 12 to move. The slider 12 drives the adjusting plate 9 and the movable plate 10 to move, so that the buffer pad 17 abuts against the sheet metal to achieve the positioning function.
[0029] When sheet metal is stretched and deformed during the stamping process, the edge of the sheet metal extends outward and is squeezed by the buffer pad 17. The damper 11 can buffer the sheet metal and protect the edge of the sheet metal to avoid deformation caused by rigid extrusion of the mold.
[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A stamping and fixing device for the inner panel of a car trunk lid, characterized in that: The system includes a stamping table (1), the top surface of which has several evenly distributed rectangular slots (2), the bottom surface of which is fixedly connected to several columns (3), the bottom end of which is fixedly connected to the same fixing plate (4), the bottom surface of which is fixedly connected to a bracket (5), a connecting block (6) is provided in the rectangular slots (2), the bottom surface of which is provided with an adjustment component, the top surface of which is slidably connected to an adjustment plate (9), which is U-shaped, and a docking component is provided between the adjustment plate (9) and the connecting block (6), a movable plate (10) is provided inside the adjustment plate (9), the movable plate (10) is slidably connected to the adjustment plate (9), and a damper (11) is assembled between the adjustment plate (9) and the movable plate (10).
2. The stamping and fixing device for the inner panel of a car trunk lid according to claim 1, characterized in that: The adjustment assembly includes several screws (8), and the top surface of the fixing plate (4) is provided with several evenly distributed screw holes (7). The screws (8) are threadedly connected to the screw holes (7), and the top ends of the screws (8) are rotatably connected to the bottom surface of the connecting block (6).
3. The stamping and fixing device for the inner panel of a car trunk lid according to claim 1, characterized in that: The docking assembly includes a slider (12) fixedly connected to the bottom surface of the adjusting plate (9). The top surfaces of the connecting block (6) and the adjusting plate (9) are respectively provided with sliding grooves (13). The slider (12) is slidably connected to the sliding grooves (13). The side wall of the slider (12) is provided with a threaded hole. A lead screw (14) is threadedly connected to the threaded hole. The lead screw (14) is threadedly connected to the threaded hole. Both ends of the lead screw (14) are rotatably connected to the side wall of the sliding groove (13). The side walls of the connecting block (6) and the adjusting plate (9) are provided with a storage groove (15). One end of the lead screw (14) extends into the storage groove (15).
4. The stamping and fixing device for the inner panel of a car trunk lid according to claim 1, characterized in that: The side wall of the adjusting plate (9) is provided with a positioning groove (16), and the movable plate (10) passes through the positioning groove (16).
5. The stamping and fixing device for the inner panel of a car trunk lid according to claim 1, characterized in that: The side walls of the movable plate (10) are all fixedly connected with buffer pads (17).
6. The stamping and fixing device for the inner panel of a car trunk lid according to claim 1, characterized in that: Each of the rectangular grooves (2) is provided with a sealing plate (18), and the sealing plate (18) is flush with the surface of the stamping table (1).