A synchronous mechanism for pressing large flat surfaces of workpieces

Abstract

This utility model discloses a synchronous mechanism for pressing large flat surfaces of workpieces, relating to the field of multi-hole riveting technology. It includes a lower support plate; a lower pressure head is fixedly connected inside the lower support plate; an upper support plate is provided at the top of the lower support plate; an upper pressure head is fixedly connected to the top of the upper support plate; a power mechanism is fixedly connected to the side of the lower support plate; and a power unit is provided on the lower support plate. By integrating multiple pressure heads onto the upper support plate, not only is the pressing area on the workpiece increased, making the workpiece more evenly stressed during multi-hole riveting and effectively reducing damage around the riveting holes, but the pressure heads can also be replaced and adjusted according to the specific requirements of the workpiece's pressing surface. This allows for flexible adaptation to large flat workpieces of different specifications and shapes, such as electric vehicle battery box covers, significantly reducing workpiece deformation and improving the adaptability and reliability of the riveting process.

Description

Technical Field

[0001] This utility model relates to the field of multi-hole riveting technology, specifically to a synchronous mechanism for pressing a large flat surface of a workpiece. Background Technology

[0002] Multi-hole riveting is a process that uses specialized equipment to simultaneously or in stages rivet multiple preset holes on a large flat workpiece. Its purpose is to achieve a reliable connection between the workpiece and other components through the tight fit between the riveted part and the hole wall of the workpiece. It is widely used in thin-walled workpiece connection scenarios in the automotive, rail transportation and other fields.

[0003] The existing multi-hole riveting method usually involves placing the workpiece on a tooling platform, initially positioning the workpiece using a positioning mechanism, and then applying pressure to the edge or local area of ​​the workpiece using a clamping mechanism to fix the workpiece. Subsequently, multiple pressure heads of the riveting equipment perform synchronous or sequential riveting operations corresponding to the riveting holes on the workpiece. The entire process relies on the coordination of positioning and clamping to ensure riveting accuracy.

[0004] In existing multi-hole riveting processes, traditional clamping mechanisms often use point-type or small-area clamping methods. The clamping area is small, which makes the workpiece susceptible to uneven stress concentration around the riveting holes when subjected to concentrated pressure from multiple riveting points. This can lead to damage such as hole wall wear and indentations. At the same time, the workpiece as a whole can deform significantly due to insufficient constraint, which seriously affects the dimensional accuracy and appearance quality of the workpiece. These problems are particularly prominent for workpieces with high flatness requirements, such as electric vehicle battery box covers. Utility Model Content

[0005] The purpose of this utility model is to provide a synchronous mechanism for clamping a large flat surface of a workpiece, so as to solve the technical problem that the clamping mechanism in the prior art often adopts a point-type or small-area clamping method, and the area around the rivet hole is prone to local stress concentration due to uneven force, which in turn causes damage such as hole wall wear and indentation.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A synchronous mechanism for pressing a large flat surface of a workpiece includes a lower support plate; a lower pressure head is fixedly connected inside the lower support plate; an upper support plate is provided at the top of the lower support plate; an upper pressure head is fixedly connected at the top of the upper support plate; a power mechanism is fixedly connected to the side end of the lower support plate; and a power unit is provided on the lower support plate.

[0008] As a further embodiment of this utility model: the power unit includes a rotating rod; the rotating rod is connected to a power mechanism; a gear is fixedly connected to the side end of the rotating rod; a guide rail is slidably connected to the side end of the lower support plate; a toothed plate is fixedly connected to the side end of the guide rail, and the toothed plate meshes with the gear.

[0009] As a further embodiment of this utility model: a cylinder is fixedly connected to the side end of the lower support plate; a first limiting plate is fixedly connected to the side end of the cylinder; a first electric slide rail is fixedly connected inside the lower support plate; a second limiting plate is slidably connected to the first electric slide rail, and the second limiting plate is located on one side of the lower pressure head.

[0010] As a further embodiment of this utility model: a second electric slide rail is fixedly connected inside the lower support plate; a third limiting plate is slidably connected on the second electric slide rail, and the third limiting plate is located on the side close to the lower pressure head.

[0011] The beneficial effects of this utility model are as follows: By integrating multiple pressure heads onto the upper support plate, the pressing area of ​​the workpiece is increased, making the workpiece more evenly stressed during multi-hole riveting and effectively reducing damage around the riveting holes. Moreover, the pressure heads can be replaced and adjusted according to the specific requirements of the workpiece pressing surface, which can flexibly adapt to the electric vehicle battery box cover of large flat workpieces of different specifications and shapes, significantly reducing the degree of workpiece deformation, and improving the adaptability and reliability of riveting processing. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a three-dimensional view of the toothed plate structure in this utility model;

[0015] Figure 3 This is a schematic diagram of the lower support plate structure of this utility model;

[0016] Figure 4 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0017] In the diagram: 1. Lower support plate; 2. Lower pressure head; 3. Upper support plate; 4. Upper pressure head; 5. Power mechanism; 6. Cylinder; 7. No. 1 limit plate; 8. No. 1 electric slide rail; 9. No. 2 limit plate; 10. No. 2 electric slide rail; 11. No. 3 limit plate; 12. Rotating rod; 13. Gear; 14. Gear plate; 15. Guide rail. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-4 As shown, a synchronous mechanism for pressing a large flat surface of a workpiece includes a lower support plate 1; a lower pressure head 2 is fixedly connected inside the lower support plate 1; an upper support plate 3 is provided at the top of the lower support plate 1; an upper pressure head 4 is fixedly connected at the top of the upper support plate 3; a power mechanism 5 is fixedly connected to the side end of the lower support plate 1; and a power unit is provided on the lower support plate 1.

[0020] During operation, the worker places the large flat workpiece on the lower support plate 1. The power mechanism 5 rotates the rotating rod 12, which in turn rotates the gear 13. The rotation of the gear 13 causes the toothed plate 14 to slide, which in turn causes the guide rail 15 to slide, moving the upper support plate 3 downward. The lower support plate 1 has multiple sets of lower pressure heads 2 inside, and the upper support plate 3 has multiple sets of upper pressure heads 4. The cooperation between the lower pressure heads 2 and the upper pressure heads 4 can improve the uniform force distribution on the large flat workpiece during multi-hole riveting. By integrating multiple pressure heads into the upper support plate 3, not only is the pressing area of ​​the workpiece increased, making the force distribution on the workpiece more uniform during multi-hole riveting and effectively reducing damage around the riveting holes, but the pressure heads can also be replaced and adjusted according to the specific requirements of the workpiece pressing surface. This allows for flexible adaptation to large flat workpieces of different specifications and shapes, such as the electric vehicle battery box cover, significantly reducing the degree of workpiece deformation and improving the adaptability and reliability of the riveting process.

[0021] The power unit includes a rotating rod 12; the rotating rod 12 is connected to the power mechanism 5; a gear 13 is fixedly connected to the side end of the rotating rod 12; a guide rail 15 is slidably connected to the side end of the lower support plate 1; a toothed plate 14 is fixedly connected to the side end of the guide rail 15, and the toothed plate 14 meshes with the gear 13.

[0022] The large flat workpiece is placed on the lower support plate 1. The rotating rod 12 is rotated by the power mechanism 5. The rotation of the rotating rod 12 causes the gear 13 to rotate. The rotation of the gear 13 causes the toothed plate 14 to slide. The sliding of the toothed plate 14 causes the guide rail 15 to slide and drive the upper support plate 3 to move downward. The lower support plate 1 is equipped with multiple sets of lower pressure heads 2, and the upper support plate 3 is equipped with multiple sets of upper pressure heads 4. The cooperation between the lower pressure heads 2 and the upper pressure heads 4 can improve the uniform force distribution on the large flat workpiece during the multi-hole riveting process.

[0023] A cylinder 6 is fixedly connected to the side end of the lower support plate 1; a first limiting plate 7 is fixedly connected to the side end of the cylinder 6; a first electric slide rail 8 is fixedly connected inside the lower support plate 1; a second limiting plate 9 is slidably connected to the first electric slide rail 8, and the second limiting plate 9 is located on one side of the lower pressure head 2.

[0024] After the large flat workpiece is placed on the lower support plate 1, to avoid the position deviation of the large flat workpiece, the cylinder 6 causes the first limit plate 7 to slide to adjust the position of the large flat workpiece. The first electric slide rail 8 causes the second limit plate 9 to slide in conjunction with the first limit plate 7 to adjust the large flat workpiece, ensuring that the large flat workpiece is processed in the designated position.

[0025] The lower support plate 1 is internally fixed with a second electric slide rail 10; a third limiting plate 11 is slidably connected to the second electric slide rail 10, and the third limiting plate 11 is located on the side close to the lower pressure head 2.

[0026] The lower pressure head 2 is provided with a second electric slide rail 10 on one side. The second limit plate 9 and the first limit plate 7 can adjust the front and rear ends of the large flat workpiece. The second electric slide rail 10 makes the third limit plate 11 slide, which can adjust the left and right ends of the large flat workpiece.

[0027] The working principle of this utility model is as follows: During operation, the operator places the large flat workpiece on the lower support plate 1. The power mechanism 5 rotates the rotating rod 12, which in turn rotates the gear 13. The rotation of the gear 13 causes the toothed plate 14 to slide, which in turn causes the guide rail 15 to slide, moving the upper support plate 3 downward. The lower support plate 1 has multiple sets of lower pressure heads 2 inside, and the upper support plate 3 has multiple sets of upper pressure heads 4. The cooperation between the lower pressure heads 2 and the upper pressure heads 4 can improve the uniform force distribution on the large flat workpiece during multi-hole riveting. By integrating multiple pressure heads on the upper support plate 3, not only is the pressing area of ​​the workpiece increased, making the force distribution on the workpiece more uniform during multi-hole riveting, but damage around the riveting holes is also effectively reduced. Moreover, the pressure heads can be adjusted according to the specific requirements of the workpiece pressing surface. The electric vehicle battery box cover can be flexibly adapted to large flat workpieces of different specifications and shapes through replacement and adjustment, significantly reducing the deformation of the workpiece and improving the adaptability and reliability of the riveting process. After the large flat workpiece is placed on the lower support plate 1, to avoid positional deviation of the large flat workpiece, the cylinder 6 causes the first limit plate 7 to slide to adjust the position of the large flat workpiece. The first electric slide rail 8 causes the second limit plate 9 to slide in conjunction with the first limit plate 7 to adjust the large flat workpiece, ensuring that the large flat workpiece is processed in the designated position. The lower pressure head 2 is provided with a second electric slide rail 10 on one side. The second limit plate 9 and the first limit plate 7 can adjust the front and rear ends of the large flat workpiece. The second electric slide rail 10 causes the third limit plate 11 to slide, which can adjust the left and right ends of the large flat workpiece.

[0028] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A synchronization mechanism for large plane pressing of a workpiece, characterized by, It includes a lower support plate (1); a lower pressure head (2) is fixedly connected inside the lower support plate (1); an upper support plate (3) is provided at the top of the lower support plate (1); an upper pressure head (4) is fixedly connected at the top of the upper support plate (3); a power mechanism (5) is fixedly connected to the side end of the lower support plate (1); and a power unit is provided on the lower support plate (1).

2. A synchronization mechanism for large plane pressing of a workpiece according to claim 1, characterized in that, The power unit includes a rotating rod (12); the rotating rod (12) is connected to the power mechanism (5); a gear (13) is fixedly connected to the side end of the rotating rod (12); a guide rail (15) is slidably connected to the side end of the lower support plate (1); a toothed plate (14) is fixedly connected to the side end of the guide rail (15), and the toothed plate (14) meshes with the gear (13).

3. The synchronization mechanism for large plane pressing of a workpiece according to claim 1, wherein, A cylinder (6) is fixedly connected to the side end of the lower support plate (1); a first limiting plate (7) is fixedly connected to the side end of the cylinder (6); a first electric slide rail (8) is fixedly connected inside the lower support plate (1); a second limiting plate (9) is slidably connected on the first electric slide rail (8), and the second limiting plate (9) is located on one side of the lower pressure head (2).

4. The synchronization mechanism for large plane pressing of a workpiece according to claim 1, wherein, The lower support plate (1) is internally fixed with a second electric slide rail (10); a third limiting plate (11) is slidably connected on the second electric slide rail (10), and the third limiting plate (11) is located on the side close to the lower pressure head (2).

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