Bidirectional punch forming device of support structure

Abstract

The utility model discloses a bidirectional punch forming device of a support structure, which comprises a lower pressing structure and an upper pressing structure, the lower pressing structure is provided with a lower support body and a movable female die, the lower support body is fixedly arranged on the upper end face of a lower datum plate, and the movable female die is arranged above the lower datum plate in a lifting manner; when the movable female die ascends to an upper limit position, the upper pressing structure and the movable female die are pressed; and when the movable female die descends to a lower limit position, the upper pressing structure is pressed with the lower supporting body and the movable female die. According to the utility model, two reverse forming actions are combined into one-time stamping, so that the cost is reduced while the forming precision and quality are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping devices, in particular to a two-way stamping forming device with a bracket structure. Background Art

[0002] The bracket structure is a main component of automotive parts, and its functions are diverse. According to different installation requirements, the profile of the bracket structure is complex and diverse. To ensure a certain strength, a single sheet metal part is mostly used for stamping forming. Due to the complexity of its structure, especially when there are relatively reverse forming profiles, it is difficult to ensure the forming accuracy and quality through one-time stamping, which is likely to cause damage to the sheet material. And stamping in separate processes will generate relatively high die costs. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies existing in the prior art, the utility model provides a two-way stamping forming device with a bracket structure, which combines two reverse forming actions into one stamping, ensuring the forming accuracy and quality while reducing the cost.

[0004] Technical Solution: To achieve the above object, a two-way stamping forming device with a bracket structure of the utility model includes a downward pressing structure and an upward pressing structure. The downward pressing structure is provided with a lower support body and a movable die cavity. The lower support body is fixedly arranged on the upper end surface of a lower reference plate, and the movable die cavity is arranged to move up and down above the lower reference plate. When the movable die cavity rises to the upper limit position, the upward pressing structure is pressed against the movable die cavity. When the movable die cavity descends to the lower limit position, the upward pressing structure is pressed against the lower support body and the movable die cavity.

[0005] Further, the upward pressing structure is a spliced structure, and the splicing part corresponds to the interface of the profile of the bracket structure.

[0006] Further, the movable die cavity is provided with a die cavity groove, and the upward pressing structure is provided with a convex block corresponding to the die cavity groove. The convex block is located on the lowest pressing surface of the upward pressing structure.

[0007] Further, the downward pressing structure is provided with a limiting module, and the limiting module includes a plurality of fixed limiting blocks and multiple groups of movable limiting blocks. The fixed limiting blocks are attached to the two end edge surfaces of the sheet material.

[0008] Further, each group of the movable limiting blocks is provided with two, and the two movable limiting blocks are arranged to slide relative to each other. The two movable limiting blocks are attached to the two side edges of the sheet material.

[0009] Further, the movable limiting blocks are arranged on the upper end surface of the movable die cavity.

[0010] Beneficial effects: A two-way stamping and forming device for a bracket structure of the present utility model realizes two opposite forming actions in one stamping through the opposing stamping and lifting cooperation of the movable female die in the upper pressing structure and the lower pressing structure, ensures the accuracy of stamping and forming, effectively reduces the investment cost of the mold, and improves the efficiency of stamping and forming. Description of the Drawings

[0011] Figure 1 It is a front view schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 It is a three-dimensional schematic diagram of the lower pressing structure of an embodiment of the present utility model. Detailed Embodiment

[0013] The following further describes the present utility model with reference to the drawings.

[0014] As shown in the attached Figure 1-2 A two-way stamping and forming device for a bracket structure, comprising a lower pressing structure 1 and an upper pressing structure 2. The lower pressing structure is provided with a lower support body 3 and a movable female die 4. The lower support body 3 is fixedly arranged on the upper end surface of a lower reference plate 5, and the movable female die 4 is arranged to be lifted above the lower reference plate 5; when the movable female die 4 rises to the upper limit position, the upper pressing structure 2 is pressed against the movable female die 4; when the movable female die 4 descends to the lower limit position, the upper pressing structure 2 is pressed against the lower support body 3 and the movable female die 4.

[0015] In this solution, the upper pressing structure and the lower pressing structure press and fit the plate, and the cylinder ejection force of the upper pressing structure is less than the cylinder ejection force of the movable female die of the lower pressing structure. Thus, the movable female die is first raised to the upper limit position so that it cooperates with the upper pressing structure to form the structural profile in the middle of the plate downward, and then the movable female die is lowered to the lower limit position so that the lower support body cooperates with the upper pressing structure to form the bending step surfaces on both sides upward, thereby continuously completing the forming in two directions, saving the mold cost and stamping cost. It is applicable to the pressing and forming of sheet metal structural parts with multi-directional forming profiles.

[0016] The upper pressing structure 2 is a splicing structure, and the splicing part corresponds to the interface of the bracket structure profile. Correspondingly, the movable female die is arranged to be lifted along the vertical surface of the lower support body, and the fitting part also corresponds to the interface of the bracket structure profile, so as to facilitate the processing and forming of the interface.

[0017] Embodiment: It can be applied to the pressing and forming of a warning light vehicle-mounted bracket structure. The middle part of the bracket structure is provided with a convex structure for positioning and installing the warning light, and the two side edges are provided with strip-shaped step surfaces that are formed in the opposite direction to the convex structure for fitting and positioning with the vehicle body installation surface.

[0018] For the bracket structure, the movable female die 4 of the present solution is provided with a female die groove 41, and the upper pressing structure 2 is provided with a convex block 21 corresponding to the female die groove 41. The convex block 21 is located at the lowest pressing surface of the upper pressing structure 2. It can first form the convex structure in the middle downward. In the state where the upper pressing structure and the movable female die clamp the middle of the plate, the plate is driven to move downward until the upper pressing structure is pressed against the lower support body, so as to form the strip-shaped stepped surfaces on both sides upward. The forming in two directions is combined into one pressing and completed successively, without being completed in two processes, improving the pressing and forming efficiency, reducing the die cost, and ensuring the forming accuracy and quality.

[0019] The lower pressing structure 1 is provided with a limiting module. The limiting module includes a plurality of fixed limiting blocks 42 and multiple groups of movable limiting blocks 43. The fixed limiting blocks 42 are attached to the two end edge surfaces of the plate. Each group of the movable limiting blocks 43 has two, and the two movable limiting blocks 43 are arranged to slide relative to each other, and the two movable limiting blocks 43 are attached to the two side edges of the plate. Preferably, the movable limiting blocks 43 are arranged on the upper end surface of the movable female die 4.

[0020] When installing the plate, first raise the movable female die to a certain height so that its upper end surface is higher than the support surfaces of all the lower supports. Place the plate to be pressed on the upper end surface of the movable female die so that its two end edge surfaces are attached to the fixed limiting blocks, thereby restricting its position in the profile distribution direction. Then, by adjusting the positions of the movable limiting blocks on both sides, the convex forming position of the plate corresponds to the female die groove, and the movable limiting blocks on both sides are locked to realize the limiting installation of the plate. The forming accuracy is improved.

[0021] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A bidirectional stamping forming device for a bracket structure, characterized in that: The invention comprises a lower pressing structure (1) and an upper pressing structure (2), wherein the lower pressing structure is provided with a lower supporting body (3) and a movable concave die (4), wherein the lower supporting body (3) is fixedly arranged on the upper end surface of a lower reference plate (5), and the movable concave die (4) is arranged to be lifted above the lower reference plate (5); when the movable concave die (4) rises to an upper limit position, the upper pressing structure (2) is pressed together with the movable concave die (4); when the movable concave die (4) falls to a lower limit position, the upper pressing structure (2) is pressed together with the lower supporting body (3) and the movable concave die (4).

2. A bidirectional stamping forming device for a bracket structure according to claim 1, characterized in that: The upper pressing structure (2) is a spliced ​​structure, and the spliced ​​portion corresponds to the interface of the support structure profile.

3. A bidirectional stamping forming device for a bracket structure according to claim 2, characterized in that: The movable die (4) is provided with a die groove (41), and the upper pressing structure (2) is provided with a convex block (21) corresponding to the die groove (41), and the convex block (21) is located at the lowest pressing surface of the upper pressing structure (2).

4. A bidirectional stamping forming device for a bracket structure according to claim 3, characterized in that: The pressing structure (1) is provided with a limiting module, the limiting module comprising a plurality of fixed limiting blocks (42) and a plurality of groups of movable limiting blocks (43), the fixed limiting blocks (42) being fitted to the edge surfaces at both ends of the plate.

5. A bidirectional stamping forming device for a bracket structure according to claim 4, characterized in that: Each group of movable limit blocks (43) is provided with two, the two movable limit blocks (43) are arranged to slide relative to each other, and the two movable limit blocks (43) are attached to the edges of both sides of the plate.

6. A bidirectional stamping and forming device for a bracket structure according to claim 5, characterized in that: The movable limiting block (43) is arranged on the upper end surface of the movable die (4).

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