A forming mechanism for beading

Abstract

The utility model discloses a kind of forming mechanisms of inclined wedge flanging, including lower die holder, stop plate and driving block being installed on upper die holder, pad and fixed seat are installed on lower die holder, pad is installed on the pad for carrying blank, fixed seat is equipped with installation cavity, slide block, insert and driven block are installed in installation cavity, slide block is arranged in the bottom of the installation cavity. Upper die is under the action of press, moves downward, upper forming block starts to contact product and is pressed tightly, when driving block contacts insert, insert moves downward and pushes slide block to slide left, slide block pushes driven block, lower forming block moves upward and starts to form product, to the lower dead point of press slide block, forming is completed. Compared with prior art, the utility model's forming process is simpler, cost is lower, and forming precision is higher.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and more specifically, to a forming mechanism for a wedge flange. Background Technology

[0002] In the field of automated stamping, automotive rear panel reinforcement parts have complex shapes and often require flanging. However, flanging is prone to cracking. Therefore, it is necessary to unfold the part and use a flanging structure set in the stamping die to achieve side flanging. This also results in negative angles being generated at the flanging points.

[0003] The presence of a negative angle makes it impossible to directly remove the molded parts vertically upwards after mold opening, resulting in cumbersome part removal and affecting production efficiency.

[0004] To reduce mold manufacturing costs while ensuring product precision, the goal is to produce parts with the fewest stamping steps and the most economical forming structure. To address this challenge, a wedge-shaped flanging forming mechanism is designed. Utility Model Content

[0005] This invention provides a forming mechanism for a wedge flange to solve the problems of poor efficiency and accuracy of existing flange forming molds.

[0006] According to one aspect of the present invention, a forming mechanism for a wedge flange is provided, comprising a lower mold base, a stop plate mounted on an upper mold base, and a driving block. A pad and a fixed seat are mounted on the lower mold base. A pad for supporting a blank is mounted on the pad. The fixed seat has an installation cavity, in which a slider, a cutting tool, and a driven block are installed. The slider is disposed at the bottom of the installation cavity, and its top has two adjacent first and second wedge-shaped surfaces. The bottom of the cutting tool is wedge-shaped and abuts against the first wedge-shaped surface. The bottom of the driven block is wedge-shaped and abuts against the second wedge-shaped surface. The side end face of the cutting tool is vertical and fits against the side end face of the driven block. The cutting tool is positioned opposite to the driving block. A lower forming block is disposed at the top of the driven block, and an upper forming block is disposed on the stop plate opposite to the pad.

[0007] Preferably, based on the above scheme, the drive block is detachably connected to the upper mold base. Preferably, based on the above scheme, a nitrogen spring is provided on the side end face of the slider, and the nitrogen spring abuts against the inner side of the mounting cavity.

[0008] Preferably, based on the above scheme, the stop plate is installed on the upper mold base by unloading bolts.

[0009] Based on the above scheme, a nitrogen spring is preferably provided between the stop plate and the upper mold base.

[0010] This utility model discloses a wedge-shaped flange forming mechanism. Under the action of a press, the upper die moves downwards, and the upper forming block initially contacts and presses against the product. When the drive block contacts the insert, the insert moves downwards and pushes the slider to the left. The slider then pushes the driven block and the lower forming block upwards to begin forming the product. Forming is completed when the press slider reaches its bottom dead center. The press slider then begins to rise, sliding to the right under the action of a nitrogen spring. The insert slides upwards, and the driven block and the lower forming block slide downwards until the drive block leaves the insert, the upper forming block disengages from the product, and the press slider reaches its top dead center, completing one stroke. This mechanism allows for smooth production in a stamping die. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the first state of a forming mechanism for a wedge flange according to the present invention; Figure 2 This is a schematic diagram of the second state of a forming mechanism for a wedge flange according to the present invention; Explanation of icon numbers: 1. Lower mold base; 2. Upper mold base; 3. Stop plate; 4. Drive block; 5. Pad block; 6. Fixed base; 7. Blank; 8. Pad plate; 9. Mounting cavity; 10. Slider; 10a. First wedge surface; 10b. Second wedge surface; 11. Insert cutter; 12. Follower block; 13. Lower forming block; 14. Upper forming block; 15. Bolt; 16. Nitrogen spring; 17. Unloading bolt; 18. Nitrogen spring. Detailed Implementation

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0013] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0014] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0015] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0016] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0017] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0019] Please see Figure 1 and combined Figure 2As shown, the present invention discloses a forming mechanism for a wedge flange, comprising a lower mold base 1, a stop plate 3 mounted on an upper mold base 2, and a driving block 4. The lower mold base 1 is provided with a pad block 5 and a fixed seat 6. The pad block 5 is provided with a pad plate 8 for supporting the blank 7. The fixed seat 6 is provided with a mounting cavity 9. The mounting cavity 9 is provided with a slider 10, a cutting tool 11, and a driven block 12. The slider 10 is located at the bottom of the mounting cavity 9. The top of the slider 10 is provided with two adjacent first wedge surfaces 10a and second wedge surfaces 10b. The bottom of the cutting tool 11 is wedge-shaped and abuts against the first wedge surface 10a. The bottom of the driven block 12 is wedge-shaped and abuts against the second wedge surface 10b. The side end face of the cutting tool 11 is vertical and fits against the side end face of the driven block 12. The cutting tool 11 is positioned opposite to the driving block 4. The top of the driven block 12 is provided with a lower forming block 13, and the stop plate 3 is provided with an upper forming block 14 positioned opposite to the pad block 5. The drive block 4 is detachably connected to the upper mold base 2 by bolts 15, which makes it easy to replace the drive block 4 according to different molding requirements.

[0020] A nitrogen spring 16 is provided on the right end face of the slider 10. The nitrogen spring 16 abuts against the inner right side of the mounting cavity 9 and is used to provide the power for the slider 10 to reset during the return stroke.

[0021] The stop plate 3 is mounted on the upper mold base 2 by the unloading bolt 17, and a nitrogen spring 18 is provided between the stop plate 3 and the upper mold base 2 to provide buffering and restoring force during unloading.

[0022] The working principle of this utility model is as follows: Under the action of the press, the upper die moves downward, and the upper forming block 14 begins to contact and press the product 7. When the driving block 4 contacts the insert 11, the insert 11 moves downward and pushes the slider 10 to slide to the left. The slider 10 pushes the driven block 12 and the lower forming block 13 upward through the second wedge surface 10b and begins to form the product 7. Forming is completed when the press slider reaches the bottom dead center. The press slider begins to rise, and the slider 10 slides to the right to reset under the action of the nitrogen spring 16. The insert 11 slides upward, and the driven block 12 and the lower forming block 13 slide downward until the driving block 4 leaves the insert 11. The upper forming block 14 disengages from the product 7 under the action of the nitrogen spring 18. When the press slider reaches the top dead center, one stroke ends. This mechanism realizes the conversion between vertical and horizontal motion through the wedge transmission, and can smoothly complete the flanging forming process in the stamping die.

[0023] Compared with existing technologies, this utility model adopts a wedge-shaped transmission structure, which not only enables rapid pre-positioning, but also allows for quick and precise completion of flanging forming through wedge transmission, resulting in higher precision of the formed products.

[0024] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A forming mechanism for a wedge flange, characterized in that, The device includes a lower mold base, a stop plate mounted on an upper mold base, and a drive block. The lower mold base is equipped with a pad and a fixed seat. The pad is equipped with a pad for supporting the blank. The fixed seat has an installation cavity. The installation cavity is equipped with a slider, a cutting tool, and a driven block. The slider is located at the bottom of the installation cavity. The top of the slider has two adjacent first wedge-shaped surfaces and a second wedge-shaped surface. The bottom of the cutting tool is wedge-shaped and abuts against the first wedge-shaped surface. The bottom of the driven block is wedge-shaped and abuts against the second wedge-shaped surface. The side end face of the cutting tool is vertical and fits against the side end face of the driven block. The cutting tool is opposite to the drive block. The top of the driven block is equipped with a lower forming block, and the stop plate is equipped with an upper forming block opposite to the pad.

2. The forming mechanism for a wedge flange as described in claim 1, characterized in that, The drive block is detachably connected to the upper mold base.

3. The forming mechanism for a wedge flange as described in claim 1, characterized in that, A nitrogen spring is provided on the side end face of the slider, and the nitrogen spring abuts against the inner side of the mounting cavity.

4. The forming mechanism for a wedge flange as described in claim 1, characterized in that, The stop plate is installed on the upper mold base by unloading bolts.

5. The forming mechanism for a wedge flange as described in claim 1, characterized in that, A nitrogen spring is provided between the stop plate and the upper mold base.

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