Bending die for aluminum alloy control arm

Abstract

The utility model discloses a bending die for an aluminum alloy control arm, which comprises an upper die fixing plate and a lower die fixing plate, an upper die core is fixed in the middle of the lower end of the upper die fixing plate, a lower die core is fixed in the middle of the upper end of the lower die fixing plate, and a Z-direction guide structure and a Z-direction limit structure are further arranged between the upper die fixing plate and the lower die fixing plate. Thus, the Z-direction guide structure and the Z-direction limiting structure are arranged between the upper die fixing plate and the lower die fixing plate, the Z-direction limiting structure plays a role in Z-direction limiting in the die-filling debugging process on a 500T oil press, and the Z-direction guide structure plays a role in X-direction and Y-direction positioning in the die-filling process, so that the centers of the upper die core and the lower die core are quickly aligned, and the die-filling process is quick and safe; stable production is accurately achieved; the problems of low die filling efficiency, unstable product production state and the like are solved, and the folding risk caused by inaccurate bending center point is completely eradicated.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a bending mold for an aluminum alloy control arm. Background Technology

[0002] With the development of the new energy vehicle industry and considering the requirements for vehicle lightweighting, the bending control arms of automotive chassis suspension systems are gradually switching from traditional sheet metal welding structures to aluminum alloy materials. (e.g., bending control arms...) Figure 1 As shown, bending dies must be designed in the forging manufacturing process. Traditional manual bending die structures, such as... Figure 2 As shown, there are no limiting devices in the X, Y, and Z directions during the production mold assembly process, requiring repeated manual alignment of the blank's center point during bending. This is inefficient and unsafe. After manual alignment in the X and Y directions, the work is carried out under a 500T press during normal production. Under such immense pressure, the upper and lower dies of the bending die are prone to misalignment during mold closing. From a product quality perspective, if the center point of the bending die is not aligned, it cannot be accurately matched with the forging die. This misalignment during production results in folding defects in the product, which is fatal in forgings. If not identified, these defects can easily lead to control arm breakage and accidents during vehicle operation as the product flows to the customer. Furthermore, considering the production process, if the center point is not aligned during mold assembly, the mold will not be in full-surface contact during mold closing, but rather point contact. This can cause stress concentration, leading to mold breakage and flying fragments, posing a threat to personal safety. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model proposes a bending die for an aluminum alloy control arm.

[0004] The present invention discloses a bending die for an aluminum alloy control arm, comprising an upper die fixing plate and a lower die fixing plate. An upper die core is fixed at the lower middle part of the upper die fixing plate, and a lower die core is fixed at the upper middle part of the lower die fixing plate. A Z-direction guiding structure and a Z-direction limiting structure are also provided between the upper die fixing plate and the lower die fixing plate.

[0005] Preferably, the Z-direction guide structure is provided in two sets. Each set of the Z-direction guide structure includes a guide post fixed to the lower end of the upper mold fixing plate and a guide sleeve fixed to the upper end of the lower mold fixing plate. When pressed down, the guide post can extend into the guide sleeve for engagement. The two guide posts are respectively located on both sides of the upper mold core, and the two guide sleeves are respectively located on both sides of the lower mold core.

[0006] Preferably, the guide pillar is fixed on the upper die fixed plate through a guide pillar pad, and the guide sleeve is fixed on the lower die fixed plate through a guide sleeve pad.

[0007] Preferably, the Z-direction limiting structure is provided with two groups, each group of the Z-direction limiting structure comprises an upper limiting block fixed at the lower end of the upper die fixed plate and a lower limiting block fixed at the upper end of the lower die fixed plate, the positions of the upper limiting block and the lower limiting block correspond to each other in the up-down direction, and when the upper limiting block and the lower limiting block abut against each other during pressing, a gap exists between the upper die core and the lower die core.

[0008] Preferably, the upper limiting block is located between the guide pillar and the upper die core, and the lower limiting block is located between the guide sleeve and the lower die core.

[0009] In summary, the utility model has the following beneficial effects: by setting the Z-direction guiding structure and the Z-direction limiting structure between the upper die fixed plate and the lower die fixed plate, the Z-direction limiting structure plays a Z-direction limiting role during die loading debugging on the 500T oil press, the Z-direction guiding structure plays an X-direction and Y-direction positioning role during die loading, the upper die core and the lower die core are quickly centered, the die loading process is fast and safe, and stable production is accurately achieved; the problems of low die loading efficiency and unstable product production state are solved, and the folding risk caused by inaccurate folding center point is eliminated.

[0010] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic view of a control arm blank after bending;

[0012] Figure 2 It is a schematic view of an existing bending die structure;

[0013] Figure 3 It is a schematic view of the bending die structure of the aluminum alloy control arm in the embodiment.

[0014] Figure 2 In the embodiment, the Z-direction guiding structure comprises a guide pillar and a guide sleeve.

[0015] 01, upper die plate; 02, upper die core; 03, blank; 04, lower die core; 05, lower die plate;

[0016] Figure 3 In the embodiment, the Z-direction limiting structure comprises an upper limiting block and a lower limiting block.

[0017] 1, upper die core; 2, lower die core; 3, upper die fixed plate; 4, blank; 5, lower limiting block; 6, upper limiting block; 7, guide pillar pad; 8, guide pillar; 9, guide sleeve; 10, guide sleeve pad; 11, lower die fixed plate. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] like Figure 3 As shown, the bending die for an aluminum alloy control arm proposed in this embodiment includes an upper die fixing plate 3 and a lower die fixing plate 11. An upper die core 1 is fixed at the lower middle part of the upper die fixing plate 3, and a lower die core 2 is fixed at the upper middle part of the lower die fixing plate 11. A Z-direction guiding structure and a Z-direction limiting structure are also provided between the upper die fixing plate 3 and the lower die fixing plate 11.

[0020] Thus, by setting a Z-direction guiding structure and a Z-direction limiting structure between the upper mold fixing plate 3 and the lower mold fixing plate 11, the Z-direction limiting structure plays a Z-direction limiting role during the mold assembly and debugging process on the 500T hydraulic press, while the Z-direction guiding structure plays an X-direction and Y-direction positioning role during the mold assembly process, enabling the upper mold core 1 and the lower mold core 2 to quickly find their center alignment. The mold assembly process is fast and safe, ensuring stable production. This solves the problems of low mold assembly efficiency and unstable product production status, and eliminates the risk of folding caused by inaccurate bending center point.

[0021] Furthermore, the Z-direction guide structure is provided in two sets. Each set of Z-direction guide structures includes a guide post 8 fixed at the lower end of the upper mold fixing plate 3 and a guide sleeve 9 fixed at the upper end of the lower mold fixing plate 11. When pressed down, the guide post 8 can extend into the guide sleeve 9 to cooperate. The two guide posts 8 are located on both sides of the upper mold core 1, and the two guide sleeves 9 are located on both sides of the lower mold core 2.

[0022] Furthermore, the guide post 8 is fixed to the upper mold fixing plate 3 by the guide post pad 7, and the guide sleeve 9 is fixed to the lower mold fixing plate 11 by the guide sleeve pad 10. The thickness of the guide post pad 7 and the guide sleeve pad 10 is set according to the actual situation.

[0023] The guide post 8 and guide sleeve 9 work together to not only guide in the Z direction, but also to position in the X and Y directions during the mold assembly process, so that the upper mold core 1 and the lower mold core 2 can be quickly aligned, making the mold assembly process fast and safe.

[0024] In the embodiment, the Z-direction limiting structure is provided with two groups, each group of the Z-direction limiting structure comprises an upper limiting block 6 fixed at the lower end of the upper die fixed plate 3 and a lower limiting block 5 fixed at the upper end of the lower die fixed plate 11, the upper limiting block 6 and the lower limiting block 5 are in position correspondence, and when being pressed down, the upper limiting block 6 and the lower limiting block 5 abut, and a gap exists between the upper die kernel 1 and the lower die kernel 2; the upper limiting block 6 is located between the guide column 8 and the upper die kernel 1, and the lower limiting block 5 is located between the guide sleeve 9 and the lower die kernel 2.

[0025] In this way, the lower limiting block 5 and the upper limiting block 6 can play a Z-direction limiting role in the mold loading debugging process on the 500T oil press, so that the upper die kernel 1 and the lower die kernel 2 will not be in contact.

[0026] In summary, before the bending die in the embodiment is loaded on the equipment, the die is accurately clamped offline by the guide column 8 and the guide sleeve 9, the die is hoisted by the crane, the die is loaded into the 500T oil press, the bolts are respectively placed into the U-shaped grooves of the upper and lower die templates for fixing and installation, the loading is completed, and debugging is performed, in the debugging process, the upper die kernel 1 and the lower die kernel 2 can be quickly and accurately centered by cooperation of the guide column 8 and the guide sleeve 9, and stable production can be accurately achieved.

[0027] It should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] In addition, the terms "first" and "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific situation.

[0030] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can be first and second feature direct contact, or first and second feature indirectly contact by intermediate medium.Moreover, first feature is "on", "above" and "on" second feature can be first feature is directly above or obliquely above second feature, or just indicate that the horizontal height of first feature is higher than second feature.First feature is "under", "below" and "under" second feature can be first feature is directly below or obliquely below second feature, or just indicate that the horizontal height of first feature is less than second feature.

[0031] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art according to the technical scheme and utility model concept of the utility model within the technology range disclosed by the utility model, carries out equivalent replacement or changes, should be covered in the protection scope of the utility model.

Claims

1. A bending die for an aluminum alloy control arm, comprising an upper die fixed plate and a lower die fixed plate, a lower end middle portion of the upper die fixed plate is fixed with an upper die core, and an upper end middle portion of the lower die fixed plate is fixed with a lower die core, characterized in that, The Z-direction guiding structure and the Z-direction limiting structure are further arranged between the upper die fixing plate and the lower die fixing plate.

2. The bending die for an aluminum alloy control arm according to claim 1, characterized by The Z-direction guiding structure is provided with two groups, each group of the Z-direction guiding structure comprising a guide column fixed at the lower end of the upper die fixing plate and a guide sleeve fixed at the upper end of the lower die fixing plate, the guide column being capable of extending into the guide sleeve to cooperate when being pressed down, the two guide columns being respectively located at two sides of the upper die core, and the two guide sleeves being respectively located at two sides of the lower die core.

3. The bending die for an aluminum alloy control arm according to claim 2, characterized by The guide column is fixed on the upper die fixing plate through a guide column pad block, and the guide sleeve is fixed on the lower die fixing plate through a guide sleeve pad block.

4. The bending die for an aluminum alloy control arm according to claim 2, characterized by The Z-direction limiting structure is provided with two groups, each group of the Z-direction limiting structure comprising an upper limiting block fixed at the lower end of the upper die fixing plate and a lower limiting block fixed at the upper end of the lower die fixing plate, the positions of the upper limiting block and the lower limiting block corresponding to each other in up-down direction, and there being a gap between the upper die core and the lower die core when the upper limiting block and the lower limiting block abut against each other when being pressed down.

5. The bending die for an aluminum alloy control arm according to claim 4, characterized by The upper limiting block is located between the guide column and the upper die core, and the lower limiting block is located between the guide sleeve and the lower die core.

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