A bending die for iron parts in a car sunshade

Abstract

This paper proposes a bending die for iron parts in automotive cargo covers. The bending die includes an upper die and a lower die. The upper die includes an upper cover plate, an upper pad, an upper die frame, an upper clamping plate, and an upper bending punch. The upper cover plate is connected to the upper die frame via the upper pad. An upper clamping plate is placed below the upper die frame, and an upper bending punch is placed below the upper clamping plate. The upper bending punch has a conical structure with an irregularly shaped top. One side of the irregularly shaped structure is an arc end, and the other side is a 0.15mm boss structure. The boss structure is connected to the arc end via a bend end. Through the precise cooperation of the upper and lower dies, high-precision bending of the iron parts in automotive cargo covers is achieved, effectively solving the problems of insufficient bending accuracy and poor rounded corner forming effect of existing dies. This significantly improves the bending quality and production efficiency of iron parts, meeting the stringent requirements of automotive parts for dimensional accuracy and appearance quality.

Description

Technical Field

[0001] This article belongs to the technical field of automotive parts processing molds, specifically relating to a bending mold for iron parts in an automotive cargo cover. Background Technology

[0002] In the automotive manufacturing industry, car cargo covers are an important interior component that effectively conceals items in the trunk, ensuring a clean and aesthetically pleasing interior while also providing a degree of privacy. The iron components in car cargo covers, serving as support and connecting structures, require bending processing to form specific shapes to meet assembly and usage requirements.

[0003] Currently, the industry generally adopts a step-by-step processing method for the production of iron parts. Generally, iron parts are produced through three steps: blanking, bending, and forming. However, the molds used for bending iron parts for automotive cargo covers have several shortcomings. Regarding bending accuracy, due to unreasonable mold structure design, it is difficult to guarantee the accuracy of the bending angle when bending the iron parts, resulting in large dimensional deviations that affect subsequent assembly and may even cause parts to be scrapped. As for the rounded corner forming effect, existing molds all use rounded corners, such as... Figure 4 As shown, the rounded corners of bent iron parts often exhibit problems such as deformation, wrinkles, and collapse, which not only affect the appearance quality of the iron parts but also reduce their strength and service life. It is difficult to trace and rectify these issues in a timely manner, further increasing production costs and quality risks.

[0004] In addition, the existing molds have poor stability. During long-term use, due to the large force, the lower mold is prone to deformation, which shortens the service life of the mold and increases production costs. At the same time, the molds are inconvenient to load, unload and maintain, which also reduces production efficiency. Therefore, it is of great practical significance to develop a bending mold for automotive cargo curtain iron parts that can improve bending accuracy, improve the rounded corner forming effect, enhance mold stability and facilitate maintenance. Utility Model Content

[0005] To address the aforementioned issues, this paper proposes a bending die for metal parts in automotive cargo covers. The bending die includes an upper die and a lower die. The upper die comprises an upper cover plate, upper pads, an upper die frame, an upper clamping plate, and an upper bending punch. The upper cover plate is connected to the upper die frame via the upper pads. An upper clamping plate is positioned below the upper die frame, and the upper bending punch is positioned below the upper clamping plate. The upper bending punch has a conical structure with an irregularly shaped top. One side of the irregularly shaped structure is an arc end, and the other side is a 0.15mm boss structure. The boss structure is connected to the arc end via a bend. This structure ensures dimensional accuracy and consistency of the product, reduces the scrap rate, and is suitable for large-scale mass production of metal parts in automotive cargo covers.

[0006] The lower die includes a lower bending groove, a lower pad, a lower die frame, lower support feet, and a lower base plate. The lower base plate is connected to the lower die frame via the lower support feet. The lower pad is placed on top of the lower die frame, and the lower bending groove is placed on top of the lower pad. The connection between the lower base plate and the lower die frame via the lower support feet ensures the stability of the entire lower die structure. The function of the lower pad is to provide a stable and suitable support surface for the upper components. The lower bending groove is an important part of the lower die structure and can be adapted to the upper bending punch.

[0007] The upper cover plate is fixedly connected to the upper mold frame by several upper pads. The upper pads are evenly distributed between the upper cover plate and the upper mold frame to ensure the stability and reliability of the overall structure. At the same time, they can effectively disperse pressure and avoid deformation or damage caused by local stress concentration. This even distribution method not only improves the firmness of the connection, but also provides a solid guarantee for the normal operation of the entire device.

[0008] The upper clamping plate is fixed to the upper mold frame and the lower pad plate is fixed to the lower mold frame by welding. This welding method can ensure the stability of the structure and make the connection between the various components more secure and reliable. Therefore, it will not loosen or fall off due to external forces or other factors during use. The integrity and stability of the entire structure are effectively guaranteed, and the durability and service life of the equipment are also improved.

[0009] Both the upper bending punch and the lower bending groove are detachable and are compatible with each other. The detachability of both the upper bending punch and the lower bending groove greatly improves the maintainability of the mold. The conical structure of the upper bending punch and the lower bending die can complete the complex bending and forming of iron parts in one go, reducing processing steps and improving production efficiency.

[0010] The straightness of the bent iron part is no more than 1.0mm, and the small holes at both ends are symmetrical after bending. This is to ensure that when the iron part and the mold are used together in subsequent use, they can always maintain a precise alignment relationship, thereby effectively avoiding the problem of misalignment caused by asymmetrical hole positions or excessive straightness, and improving the stability of the overall structure and the reliability of operation.

[0011] Beneficial effects:

[0012] By adding a 0.15mm small boss at one end of the rounded corner, a thin indentation can be pressed into the part at the moment the mold presses downward. When the part is bent, the entire length of the sheet will be bent with the indentation as a guide, ensuring that the straightness is within 1mm. The small round holes at both ends on both sides are symmetrical after bending, and there will be no vertical misalignment problem.

[0013] The fact that both the upper bending punch and the lower bending groove are detachable greatly improves the maintainability of the mold. When the upper bending punch or the lower bending groove is worn, it is not necessary to replace the entire mold; only the worn part needs to be replaced, which reduces production costs and shortens maintenance time.

[0014] The bending operation on the iron workpiece is achieved through the mutual adaptation of the lower bending groove and the upper bending punch. In this process, the lower bending groove provides a precise positioning and support space, while the upper bending punch applies downward pressure. The close cooperation between the two ensures that the iron workpiece can complete the required bending angle and shape at the predetermined position, improves processing accuracy, and avoids the problem of displacement or deformation of the workpiece during the bending process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a bending die for iron parts in a car cargo cover;

[0016] Figure 2 This is a schematic diagram of the upper bending punch of a bending die for iron parts in a car sunshade.

[0017] Figure 3 This is an enlarged view of the upper bending punch angle of a bending die for iron parts in a car sunshade.

[0018] Figure 4 This is a schematic diagram of the upper bending punch of the bending die for the iron parts in an existing car sunshade.

[0019] In the diagram: 1. Upper bending punch, 2. Arc end, 3. Corner end, 4. Boss structure, H = 0.15mm. Detailed Implementation

[0020] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0021] 1. Upper bending punch, 2. Arc end, 3. Corner end, 4. Boss structure.

[0022] like Figure 1 , 2 As shown in Figure 3;

[0023] A bending die for metal parts in a car cargo cover, comprising an upper die and a lower die. The upper die includes an upper cover plate, upper pads, an upper die frame, an upper clamping plate, and an upper bending punch 1. The upper cover plate is connected to the upper die frame via the upper pads. An upper clamping plate is placed below the upper die frame, and the upper bending punch 1 is placed below the upper clamping plate. The upper bending punch 1 has a conical structure, and its top has an irregular shape. One side of the irregular shape is an arc end 2, and the other side is a 0.15mm boss structure 4. The boss structure 4 is connected to the arc end 2 via a bend end 3. The lower die includes a lower bending punch. The system comprises a groove, a lower pad, a lower mold frame, lower pad feet, and a lower base plate. The lower base plate is connected to the lower mold frame via lower pad feet. A lower pad is placed on top of the lower mold frame, and a lower bending groove is placed on top of the lower pad. The upper cover plate is fixedly connected to the upper mold frame via several upper pad feet, which are evenly distributed between the upper cover plate and the upper mold frame. The upper clamping plate and the upper mold frame, as well as the lower pad and the lower mold frame, are fixed by welding. Both the upper bending punch 1 and the lower bending groove are detachable and are compatible with each other. The straightness of the bent iron part is no greater than 1.0 mm, and the small holes at both ends are symmetrical after bending.

[0024] Implementation example;

[0025] The iron material is placed on the lower bending groove. The upper die moves downward and uses the conical structure of the upper bending punch 1, the arc end 2, the boss structure 4, and the bend end 3 at the top of the upper bending punch 1, in conjunction with the lower bending groove, to bend the iron material. A thin, long indentation is first pressed into the iron material. When the part is bent, the entire length of the sheet metal is bent along the indentation. After completion, the upper die moves upward and the processed iron material is taken out.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bending die for iron parts in a car cargo cover, characterized in that, The iron bending die includes an upper die and a lower die. The upper die includes an upper cover plate, an upper pad, an upper die frame, an upper clamping plate, and an upper bending punch. The upper cover plate is connected to the upper die frame via the upper pad. An upper clamping plate is placed below the upper die frame, and an upper bending punch is placed below the upper clamping plate. The upper bending punch has a conical structure, and the top of the upper bending punch has an irregular shape. One side of the irregular shape is an arc end, and the other side is a 0.15mm boss structure. The boss structure is connected to the arc end via a bend end.

2. The ironwork bending die in the automobile shade curtain according to claim 1, characterized in that, The lower mold includes a lower bending groove, a lower pad plate, a lower mold frame, a lower pad foot, and a lower base plate. The lower base plate is connected to the lower mold frame via the lower pad foot. The lower pad plate is placed on top of the lower mold frame, and the lower bending groove is placed on top of the lower pad plate.

3. The bending die for iron parts in an automobile shade curtain according to claim 1, characterized in that, The upper cover plate is fixedly connected to the upper mold frame by a number of upper pads, which are evenly distributed between the upper cover plate and the upper mold frame.

4. The ironwork bending die in the automobile shade curtain according to claim 2, characterized in that, The upper clamping plate is fixed to the upper mold frame and the lower pad plate is fixed to the lower mold frame by welding.

5. The bending die for iron parts in a car sunshade according to claim 2, characterized in that, Both the upper bending punch and the lower bending groove are detachable, and the upper bending punch and the lower bending groove are compatible.

6. The bending die for iron parts in a car sunshade according to claim 1, characterized in that, The straightness of the bent iron part is no more than 1.0mm, and the small holes at both ends are symmetrical after bending.

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