Riveting tool structure of power battery structural part assembly

Abstract

The utility model discloses a riveting tool structure for a power battery structural part assembly, which relates to the technical field of power batteries and comprises a limiting plate, a processing steel shell is arranged in the center of the limiting plate, steel shell clamping structures are arranged on two sides of the limiting plate, and clamping blocks are arranged at output ends of two cylinders of the steel shell clamping structures. A steel shell clamping structure is arranged, clamping blocks connected with air cylinders on the two sides of the steel shell clamping structure can clamp and fix a steel shell in the center, and the steel shell is completely fixed through the clamping blocks after being relatively fixed through the limiting blocks of the limiting plate. The profiling riveting column of the riveting structure drives the edge pressing ring to move downwards, the edge pressing ring and the sealing ring of the machined steel shell are evenly compressed, and after the sealing ring is compressed to the specified compression amount, the profiling riveting column continues to move to rivet the pole in the machined steel shell, so that the pole is evenly stressed, and the cracking phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and in particular to a riveting tooling structure for a power battery structural component assembly. Background Art

[0002] During the riveting process of the pole of the power battery cover (including the cylindrical steel shell), the assembly of the parts and the pole hole of the cover needs to be riveted to ensure the overall airtightness and riveting size after riveting. This requires that this type of cover must be subjected to a certain pressure during the riveting process to ensure the compression of the sealing ring, and to ensure that the pole does not crack and the riveting size is qualified.

[0003] In the prior art, the riveting of power batteries is generally carried out through specific devices, such as a power battery module riveted end plate with publication number CN208862060U, wherein the power battery module riveted end plate includes a rectangular bottom plate and four side plates, each side plate is evenly spaced with a number of through holes, and reinforcing transition plates are respectively provided on the four sides of the rectangular bottom plate, each reinforcing transition plate is connected to a side plate, and three mutually parallel first heat dissipation reinforcing plates and three mutually parallel second heat dissipation reinforcing plates are provided in the middle portion of the inner side surface of the rectangular bottom plate.

[0004] The prior art uses a servo press to perform pressing. However, due to the dimensional tolerance of components, the components cannot be fixed during the pressing process, resulting in problems such as no compression of the sealing ring and cracking of the pole when riveting the riveted pole. Summary of the invention

[0005] The purpose of the utility model is to solve the problems of no compression of the sealing ring and uneven force on the pole leading to cracking during the riveting process of the above-mentioned background technology, and to propose a riveting tooling structure for a power battery structural component assembly.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A riveting tooling structure for a power battery structural component assembly includes a limit plate, a processed steel shell is arranged at the center of the limit plate, steel shell clamping structures are arranged on both sides of the limit plate, and clamping blocks are arranged at two cylinder output ends of the steel shell clamping structure, and the clamping blocks are in contact with the surface of the processed steel shell;

[0008] A riveted structure is arranged above the limiting plate, and a guide tube of the riveted structure is located directly above the processed steel shell; a contoured riveted column is slidably arranged inside the guide tube, and a pressure ring is sleeved on the circumferential surface of the contoured riveted column, and a spring is fixedly arranged at the pressure ring and the top end of the contoured riveted column, and the spring is sleeved on the surface of the contoured riveted column.

[0009] As a further solution of the utility model: an opening is arranged on the top of the limiting plate, and the processed steel shell is arranged in the opening.

[0010] As a further solution of the utility model: a limiting block is arranged on the top surface of the limiting plate, and the limiting block is arranged around the opening.

[0011] As a further solution of the utility model: mounting plates are arranged on both sides of the limiting plate, and cylinders are arranged on the outer sides of the two mounting plates.

[0012] As a further solution of the utility model: the mounting plates on both sides are arranged along the vertical direction, and the mounting plates on both sides are arranged symmetrically about the central plane of the limiting plate.

[0013] As a further solution of the utility model: a semicircular clamping groove is arranged on one side opposite to the clamping blocks on both sides, and the shape of the clamping groove is adapted to the processed steel shell.

[0014] As a further solution of the utility model: a contoured soft rubber is arranged inside the clamping groove.

[0015] As a further solution of the utility model: a sliding groove is arranged inside the guide tube, and the contoured riveted column is slidably connected in the sliding groove.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model provides a riveting tooling structure for a power battery structural component assembly. By providing a steel shell clamping structure, the clamping blocks connected to the cylinders on both sides of the steel shell clamping structure can clamp and fix the central steel shell. After the steel shell is relatively fixed by the limit blocks of the limit plate, it is completely fixed by the clamping blocks;

[0018] (2) The utility model provides a riveting tooling structure for a power battery structural component assembly. By setting up a riveting structure, the contoured riveting column of the riveting structure drives the edge pressing ring to move downward, and the edge pressing ring and the sealing ring of the processed steel shell are evenly compressed. After the sealing ring is compressed to a specified compression amount, the contoured riveting column continues to move to rivet the pole in the processed steel shell, so that the pole is evenly stressed and does not crack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 This is a front structural schematic diagram of a riveting tooling structure of a power battery structural component assembly of the utility model;

[0021] Figure 2 This is an axial schematic diagram of a riveting tooling structure of a power battery structural component assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of a riveting tooling structure of a power battery structural component assembly of the utility model;

[0023] Figure 4 This utility model Figure 3 A partial enlarged view of point A in the middle.

[0024] In the figure: 1. limit plate; 11. limit block; 12. mounting plate; 2. processed steel shell; 3. steel shell clamping structure; 31. cylinder; 32. clamping block; 33. clamping groove; 34. contoured soft rubber; 4. riveting structure; 41. guide tube; 42. sliding groove; 43. contoured riveting column; 44. spring; 45. edge pressing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 As shown, the utility model is a riveting tooling structure for a power battery structural component assembly, including a limit plate 1, the top surface of the limit plate 1 is provided with an opening, and a processed steel shell 2 is detachably provided in the opening of the limit plate 1. A circle of limit blocks 11 is provided around the opening, and the limit blocks 11 protrude from the surface of the limit plate 1. The limit blocks 11 increase the contact area with the processed steel shell 2, thereby making the processed steel shell 2 more stably installed on the top surface of the limit plate 1. Mounting plates 12 are provided on both sides of the limit plate 1, and the mounting plates 12 on both sides are arranged along the vertical direction, and the mounting plates 12 on both sides are symmetrically arranged about the central plane of the limit plate 1. Cylinders 31 are provided on the surfaces of the mounting plates 12 on both sides, and the cylinders 31 on both sides are arranged on the outside of the mounting plates 12, and the cylinders 31 on both sides are arranged along the horizontal direction. The output end of the cylinder 31 passes through the mounting plate 12 and extends into the mounting plates 12 on both sides. The output end of each cylinder 31 is fixedly connected to a clamping block 32, and the opposite sides of the clamping blocks 32 on both sides are provided with clamping grooves 33, the shape of the clamping grooves 33 is semicircular, and the shape of the clamping grooves 33 is adapted to the shape of the processed steel shell 2; a layer of contoured soft rubber 34 is provided inside the clamping grooves 33.

[0027] The top of the limit plate 1 is provided with a riveted structure 4, which is located directly above. The guide tube 41 of the riveted structure 4 is fixedly connected to the transmission device above. The guide tube 41 is arranged along the vertical direction and is located directly above the opening of the limit plate 1. A sliding groove 42 is arranged inside the guide tube 41, and a profiled riveted column 43 is slidably arranged in the sliding groove 42. The top of the profiled riveted column 43 is connected to the output end of the transmission device above. The shape of the profiled riveted column 43 is similar to a "T" shape. The upper bottom of the profiled riveted column 43 is provided with a spring 44, which is sleeved on the circumferential surface of the profiled riveted column 43. The lower circumferential surface of the profiled riveted column 43 is provided with a pressure ring 45, which is sleeved on the surface of the profiled riveted column 43, and the top of the pressure ring 45 is fixedly connected to the bottom of the spring 44.

[0028] When using this power battery structural component assembly riveting tooling structure, first place the processed steel shell 2 in the opening of the limit plate 1. The limit block 11 on the surface of the limit plate 1 can increase the contact area with the processed steel shell 2, so that the processed steel shell 2 is more stably set in the limit plate 1. Then start the steel shell clamping structure 3 on both sides, the output end of the cylinder 31 of the steel shell clamping structure 3 can be extended, and the output end of the cylinder 31 drives the clamping block 32 to move, so that the clamping grooves 33 on one side of the clamping blocks 32 on both sides contact the surface of the processed steel shell 2, and the clamping block 32 and the processed steel shell 2 are closely contacted and fixed through the elastic deformation of the contoured soft rubber 34. Then the transmission device above controls the contour riveting column 43 to move, and the contour riveting column 43 slides downward in the sliding groove 42 of the guide tube 41; the edge pressing ring 45 connected by the spring 44 contacts the lower plastic on the top surface of the processed steel shell 2, and as the stroke slides down, the spring 44 is compressed. As the stroke is set to a certain stroke, the edge pressing ring 45 fixes the processed steel shell 2 and compresses the sealing ring on the top surface of the processed steel shell 2 until the sealing ring is compressed to a specified compression amount. Then the contour riveting column 43 moves downward with the transmission device, so that the contour riveting column 43 continues to contact the pole inside the processed steel shell 2 for riveting, so that the pole is evenly stressed without cracking and the sealing ring is evenly compressed.

[0029] Working principle of the utility model: The utility model is a riveting tooling structure of a power battery structural component assembly, by setting a steel shell clamping structure 3, the clamping blocks 32 connected to the cylinders 31 on both sides of the steel shell clamping structure 3 can clamp and fix the central steel shell, and after the steel shell is relatively fixed by the limit blocks 11 of the limit plate 1, it is completely fixed by the clamping blocks 32; by setting a riveting structure 4, the contoured riveting column 43 of the riveting structure 4 drives the edge pressing ring 45 to move downward, and the edge pressing ring 45 and the sealing ring of the processed steel shell 2 are evenly compressed. After the sealing ring is compressed to the specified compression amount, the contoured riveting column 43 continues to move to rivet the pole in the processed steel shell 2, so that the pole is evenly stressed and no cracking occurs.

[0030] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A riveting tooling structure for a power battery structural component assembly, characterized in that: It comprises a limit plate (1), a processed steel shell (2) is arranged at the center of the limit plate (1), a steel shell clamping structure (3) is arranged on both sides of the limit plate (1), and clamping blocks (32) are arranged at the output ends of two cylinders (31) of the steel shell clamping structure (3), and the clamping blocks (32) are in contact with the surface of the processed steel shell (2); A riveted structure (4) is arranged above the limiting plate (1), and a guide tube (41) of the riveted structure (4) is located directly above the processed steel shell (2); a contoured riveted column (43) is slidably arranged inside the guide tube (41), a pressure ring (45) is sleeved on the circumferential surface of the contoured riveted column (43), a spring (44) is fixedly arranged between the pressure ring (45) and the top end of the contoured riveted column (43), and the spring (44) is sleeved on the surface of the contoured riveted column (43).

2. A power battery structural component assembly riveting tooling structure according to claim 1, characterized in that: An opening is arranged on the top of the limiting plate (1), and the processed steel shell (2) is arranged in the opening.

3. A power battery structural component assembly riveting tooling structure according to claim 2, characterized in that: A limiting block (11) is arranged on the top surface of the limiting plate (1), and the limiting block (11) is arranged around the opening.

4. The power battery structural component assembly riveting tooling structure according to claim 1, characterized in that: Mounting plates (12) are arranged on both sides of the limiting plate (1), and cylinders (31) are arranged outside the two mounting plates (12).

5. A power battery structural component assembly riveting tooling structure according to claim 4, characterized in that: The mounting plates (12) on both sides are arranged along the vertical direction, and the mounting plates (12) on both sides are arranged symmetrically with respect to the central plane of the limiting plate (1).

6. The power battery structural component assembly riveting tooling structure according to claim 1, characterized in that: A semicircular clamping groove (33) is arranged on one side opposite to the clamping blocks (32) on both sides, and the shape of the clamping groove (33) is adapted to the processed steel shell (2).

7. A power battery structural component assembly riveting tooling structure according to claim 6, characterized in that: A contoured soft rubber (34) is arranged inside the clamping groove (33).

8. The power battery structural component assembly riveting tooling structure according to claim 1, characterized in that: A sliding groove (42) is arranged inside the guide tube (41), and a contoured riveting column (43) is slidably connected in the sliding groove (42).

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