Pre-forging structure of middle cross beam

Abstract

The utility model discloses a pre-forging structure of a middle cross beam. The pre-forging structure comprises a body, the flash bridge part is arranged on the periphery of the body; the flash bin part is located on the periphery of the body, the flash bin part is connected with the body through a flash bridge part, and the body, the flash bridge part and the flash bin part are formed by integrally forging bars or plates. According to the pre-forging structure of the middle cross beam, metal flowing in the forming process is limited by arranging the flash bridge part, it is guaranteed that metal can form a body, and the pre-forging structure has the advantages that the forging forming effect is good, and it can be guaranteed that a finally-forged product is completely filled.

Description

Technical Field

[0001] The utility model belongs to the technical field of forging, and in particular relates to a pre-forging structure of an intermediate cross beam. Background Art

[0002] With the popularization of new energy electric vehicles, in order to achieve long-distance endurance, the battery capacity of electric vehicles has been continuously increased, and the battery packs have become larger and larger. In order to improve the strength of the battery pack, it is usually necessary to set an intermediate beam between the battery groups of the battery pack. On the one hand, it can separate the battery groups, and on the other hand, it can improve the strength and deformation resistance of the battery pack.

[0003] There are many processing methods for the middle cross beam, and the forged middle cross beam has excellent quality. However, since the middle cross beam is a thin and large sheet product, it is difficult to forge. Only by properly designing the pre-forging structure can the quality of the finished product be guaranteed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the utility model proposes a pre-forging structure of an intermediate cross beam, which has the advantages of good forging effect and can ensure that the final forged product is filled completely.

[0006] According to the pre-forging structure of the middle cross beam of the embodiment of the utility model, it includes: a main body; a flash bridge portion, which is arranged around the main body; a flash storage portion, which is located around the main body, and the flash storage portion is connected to the main body through the flash bridge portion. The main body, the flash bridge portion and the flash storage portion are forged as a whole from rods or plates.

[0007] According to an embodiment of the present invention, the main body includes a first connecting portion, a second connecting portion and a plate body, and the plate body is located between the first connecting portion and the second connecting portion.

[0008] According to an embodiment of the present invention, X-shaped protrusions are provided on the upper and lower surfaces of the plate body.

[0009] According to an embodiment of the present invention, first recessed portions are formed on both upper and lower surfaces of the first connecting portion, and second recessed portions are formed on both upper and lower surfaces of the second connecting portion.

[0010] According to an embodiment of the utility model, an inclined surface is provided on the burr bridge portion, and the inclined surface is located at two ends of the first connecting portion.

[0011] According to an embodiment of the utility model, a portion of the burr bridge portion is located in the length direction of the main body, another portion of the burr bridge portion is located in the width direction of the main body, and the width of a portion of the burr bridge portion is greater than the width of another portion of the burr bridge portion.

[0012] According to an embodiment of the utility model, the thickness of the burr bridge portion is 1.5-3 mm.

[0013] According to an embodiment of the present invention, the thickness of the burr bridge portion is 2.5 mm.

[0014] According to an embodiment of the utility model, the thickness of the flash bin portion is 3-5 times the thickness of the flash bridge portion.

[0015] According to one embodiment of the utility model, the thickness of the flash bin portion is 16 mm.

[0016] The beneficial effect of the utility model is that the utility model restricts the metal flow in the forming process by arranging the flash bridge portion to ensure that the metal can form the main body, and by arranging the first recessed portion and the second recessed portion on the main body, the metal height around the first recessed portion and the second recessed portion is made higher, which makes it easier to fill the cavity during subsequent forging and avoids the situation of incomplete punching. The width of the flash bridge portion is designed to facilitate clamping and transportation, and facilitate automated processing.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments of the present invention, in which:

[0020] Figure 1 It is a schematic diagram of the structure according to the utility model;

[0021] Figure 2 It is a schematic diagram of the structure according to the second angle of the present utility model;

[0022] Figure 3 It is a schematic diagram of the structure according to the third angle of the present utility model;

[0023] Reference numerals:

[0024] The main body 1 , the flash bridge part 2 , the flash storage part 3 , the first connecting part 11 , the plate body 12 , the second connecting part 13 , the first recessed part 111 , the inclined surface 112 , the protrusion 121 , and the second recessed part 131 . DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The pre-forging structure of the middle cross beam of the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-Figure 3 As shown, the pre-forged structure of the middle cross beam according to the embodiment of the utility model includes: a main body 1, a flash bridge portion 2 and a flash storage portion 3, the flash bridge portion 2 is arranged around the main body 1; the flash storage portion 3 is located around the main body 1, and the flash storage portion is connected to the main body 1 through the flash bridge portion 2, and the main body 1, the flash bridge portion 2 and the flash storage portion 3 are forged as a whole from rods or plates.

[0030] In this embodiment, there is a single-sided gap of 0.8-1.2 mm between the main body 1 and the final forging die cavity in the length and width directions to facilitate the placement of the pre-forging into the final forging die cavity. At the same time, the height of the main body 1 is 1.5-2.5 mm higher than the final forging so that the metal can be squeezed to fill the cavity during final forging. The main body 1 includes a first connecting part 11, a second connecting part 13 and a plate body 12, and the plate body 12 is located between the first connecting part 11 and the second connecting part 13.

[0031] That is to say, threaded holes need to be drilled at both ends of the middle cross beam to be fixed in the battery pack. Then, the thickness of the left and right ends of the middle cross beam is relatively thick. The plate body 12 mainly plays the role of supporting and isolating the battery. Therefore, the plate body 12 is arranged between the first connecting part 11 and the second connecting part 13.

[0032] Specifically, the upper and lower surfaces of the plate body 12 are both provided with X-shaped protrusions 121. The X-shaped protrusions 121 can effectively improve the strength and anti-deformation ability of the plate body 12, thereby improving the stability of the middle cross beam.

[0033] In this embodiment, first recessed portions 111 are formed on both upper and lower surfaces of the first connection portion 11 , and second recessed portions 131 are formed on both upper and lower surfaces of the second connection portion 13 .

[0034] In other words, since threaded holes need to be opened at the ends of the first connecting part 11 and the second connecting part 13, by setting the first recessed part 111 on the upper and lower surfaces of the first connecting part 11 and the second recessed part 131 on the upper and lower surfaces of the second connecting part 13, the thickness of the ends of the first connecting part 11 and the second connecting part 13 is made thicker than the middle part. During the final forming, it can be ensured that the ends of the first connecting part 11 and the second connecting part 13 fill the mold cavity, thereby retaining the necessary space for drilling threaded holes.

[0035] Furthermore, the flash bridge portion 2 is provided with an inclined surface 112, which is located at both ends of the first connecting portion 11. By providing the inclined surface 112 on the flash bridge portion 2, the flow of the metal is guided during extrusion, thereby preventing the metal from folding at both ends of the first connecting portion 11.

[0036] In this embodiment, a portion of the burr bridge portion 2 is located in the length direction of the body 1, and another portion of the burr bridge portion 2 is located in the width direction of the body 1, and the width of one portion of the burr bridge portion 2 is greater than the width of the other portion of the burr bridge portion 2. Preferably, the thickness of the burr bridge portion 2 is 1.5-3 mm. More preferably, the thickness of the burr bridge portion 2 is 2.5 mm.

[0037] Further, the thickness of the flash bin portion 3 is 3-5 times the thickness of the flash bridge portion 2. Further, the thickness of the flash bin portion 3 is 16 mm.

[0038] In other words, the middle crossbeam is generally a rectangular sheet structure, and the main body 1 is also a rectangular sheet structure. During forging, in order to facilitate clamping, the width of the flash bridge portion 2 located in the width direction of the main body 1 is designed to be wider to facilitate clamping of the two ends of the pre-forged part, which is more conducive to automation.

[0039] In summary, the utility model restricts the metal flow during the forming process by setting the flash bridge portion 2 to ensure that the metal can form the main body 1. By setting the first recessed portion 111 and the second recessed portion 131 on the main body 1, the metal height around the first recessed portion 111 and the second recessed portion 131 is made higher, which makes it easier to fill the cavity during subsequent forging and avoids the situation of incomplete punching. The width of the flash bridge portion 2 is designed to facilitate clamping and transportation, thereby facilitating automated processing.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pre-forging structure of an intermediate cross beam, characterized in that: include: ontology(1); A fin bridge portion (2), wherein the fin bridge portion (2) is arranged around the body (1); The flash storage part (3) is located around the main body (1), the flash storage part is connected to the main body (1) through the flash bridge part (2), and the main body (1), the flash bridge part (2) and the flash storage part (3) are forged as a whole from rods or plates.

2. The pre-forging structure of the intermediate cross beam according to claim 1, characterized in that: The body (1) comprises a first connecting portion (11), a second connecting portion (13) and a plate body (12), wherein the plate body (12) is located between the first connecting portion (11) and the second connecting portion (13).

3. The pre-forging structure of the intermediate cross beam according to claim 2, characterized in that: The upper and lower surfaces of the plate body (12) are both provided with X-shaped protrusions (121).

4. The pre-forging structure of the intermediate cross beam according to claim 2, characterized in that: The upper and lower surfaces of the first connecting portion (11) are both formed with a first recessed portion (111), and the upper and lower surfaces of the second connecting portion (13) are both formed with a second recessed portion (131).

5. The pre-forging structure of the intermediate cross beam according to claim 4, characterized in that: The burr bridge portion (2) is provided with an inclined surface (112), and the inclined surface (112) is located at two ends of the first connecting portion (11).

6. The pre-forging structure of the intermediate cross beam according to claim 1, characterized in that: A portion of the burr bridge portion (2) is located in the length direction of the main body (1), another portion of the burr bridge portion (2) is located in the width direction of the main body (1), and the width of a portion of the burr bridge portion (2) is greater than the width of another portion of the burr bridge portion (2).

7. The pre-forging structure of the intermediate cross beam according to claim 1, characterized in that: The thickness of the burr bridge portion (2) is 1.5-3 mm.

8. The pre-forging structure of the intermediate cross beam according to claim 7, characterized in that: The thickness of the burr bridge portion (2) is 2.5 mm.

9. The pre-forging structure of the intermediate cross beam according to claim 1, characterized in that: The thickness of the flash bin portion (3) is 3-5 times the thickness of the flash bridge portion (2).

10. The pre-forging structure of the intermediate cross beam according to claim 9, characterized in that: The thickness of the flash bin portion (3) is 16 mm.

Images