Swing block type negative angle bending die with buffering function

Abstract

The utility model discloses a swing block type negative angle bending die with a buffering function, which comprises an upper die assembly, a lower die assembly and a bending swing block, the lower die assembly is aligned and matched with the upper die assembly through a reset spring and a guide structure, the bending swing block is positioned on the upper die assembly, and the bending swing block is provided with a concave forming bending position. A passivated arc-shaped surface is arranged on the outer edge close to the bending position, a buffering curved surface block with an arc-shaped outer surface is arranged on the arc-shaped surface, and the outer surface of the buffering curved surface block and the outer surface of the bending swing block are in smooth transition. According to the bending die, the buffering curved surface layer is arranged on the bending swing block of the die, so that the buffering curved surface layer firstly makes contact with the material plate and gradually rotates, the hard structural body makes contact with the material plate, and therefore marks are prevented from being generated on the material plate. In this way, the buffering curved surface layer can effectively absorb and disperse impact force generated in the bending process, and the stability of the bending process and the quality of finished products are improved.

Description

Technical Field

[0001] The present application relates to the field of dies, and in particular to a swing block type negative angle bending die with a buffering function. Background Art

[0002] In the prior art, the swing block type negative angle bending die is widely used in the bending process of metal sheets. This type of die realizes the negative angle bending of metal sheets by swinging the die structure. The traditional swing block type negative angle bending die usually includes two parts: a fixed die and a swing die. The swing die applies pressure to the metal sheet to form a negative angle bend.

[0003] However, the existing swing block negative angle bending dies have some obvious shortcomings in practical applications. First, because the hard structure of the mold is in direct contact with the sheet, it is easy to leave marks on the sheet during the bending process, resulting in poor surface quality of the finished product. Especially in high-demand surface treatment applications, such marks will significantly reduce the market value and competitiveness of the product. In addition, during the bending process, due to the large impact force, the metal sheet may be locally deformed and damaged at the bending point, affecting the dimensional accuracy and structural integrity of the final product.

[0004] The main reason for the above shortcomings is that there is a lack of effective buffering mechanism in the prior art. Since the hard structure directly contacts the sheet, the impact force during the bending process cannot be effectively buffered and dispersed, resulting in the surface and structure of the sheet being easily damaged. At the same time, the design of the mold fails to fully consider the needs of buffering and shock absorption, making it impossible to effectively reduce the impact of the impact force on the sheet during the bending process.

[0005] In order to solve the above problems, it is of great significance and value to develop a pendulum block type negative angle bending die with a buffer curved surface layer provided on the bending pendulum block. Utility Model Content

[0006] The purpose of the present application is to overcome at least one of the shortcomings of the prior art and provide a swing block type negative angle bending die with a buffering function. The bending die sets a buffering curved surface layer on the bending swing block of the die, so that the buffering curved surface layer first contacts the material plate, and gradually rotates so that the hard structure contacts the material plate, thereby preventing marks from being generated on the material plate. In this way, the buffering curved surface layer can effectively absorb and disperse the impact force generated during the bending process, thereby improving the stability of the bending process and the quality of the finished product.

[0007] To achieve the above-mentioned purpose, the present application discloses a pendulum block type negative angle bending mold with a buffering function, comprising an upper mold assembly, a lower mold assembly aligned with the upper mold assembly through a reset spring and a guide structure, and a bending pendulum block located at the upper mold assembly, wherein the lower mold assembly is provided with a processing position, and an insert is provided in the processing position, and relatively, the bending pendulum block is installed on the upper mold assembly through a rotating shaft and aligned with the processing position and the insert; the bending pendulum block has a rotating shaft, and is installed on the upper mold assembly through the rotating shaft, and the bending pendulum block has an inwardly concave forming bending position, and the outer edge close to the bending position has a blunted arc surface, and a buffer curved surface block with an arc-shaped outer surface is provided on the curved surface, and the outer surface of the buffer curved surface block has a smooth transition with the outer surface of the bending pendulum block.

[0008] In some embodiments, the upper die assembly is provided with a plurality of punches and pressing blocks corresponding to the processing positions.

[0009] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0010] 1. Improve the quality of finished products: The design of the buffer curved surface block enables the bending swing block to gradually apply pressure when it contacts the material sheet, effectively avoiding marks on the material sheet and improving the surface quality of the bent product.

[0011] 2. Reduce sheet damage: Through the buffering effect of the passivated curved surface and the buffer curved surface block, the impact force during the bending process is dispersed, the deformation and damage risks of the sheet are reduced, and the dimensional accuracy and structural integrity of the finished product are improved.

[0012] The above-listed beneficial effects are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description parts of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] After reading the following detailed description in conjunction with the accompanying drawings, you will better understand the various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the accompanying drawings sometimes do not represent the actual positions, sizes, and ranges. In the accompanying drawings:

[0014] Figure 1 It is a structural decomposition diagram of an embodiment disclosed in the present application.

[0015] Figure 2 It is a schematic diagram of the structure of a bending pendulum block in an embodiment disclosed in the present application. DETAILED DESCRIPTION

[0016] The present disclosure will be described below with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in a variety of different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0017] It should be understood that the same reference numerals represent the same elements throughout the drawings. In the drawings, the dimensions of certain features may be distorted for clarity.

[0018] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms (including technical terms and scientific terms) used in the specification have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, the techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification.

[0019] The singular forms "a", "said" and "the" used in the specification include plural forms unless clearly indicated. The terms "include", "comprise" and "contain" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the relevant listed items.

[0020] like Figure 1 , 2 As shown, this embodiment discloses an exemplary structure of a pendulum block type negative angle bending die with a buffer function, which mainly includes an upper die assembly, a lower die assembly and a bending pendulum block 1 located on the upper die assembly. The upper die assembly and the lower die assembly are precisely aligned through a reset spring and a guide structure to ensure the stability and accuracy of the die during operation.

[0021] In this embodiment, the lower die assembly is provided with a processing position, in which an insert is installed. The insert material is high-hardness alloy steel to ensure its durability and stability during high-pressure processing.

[0022] In this embodiment, the bending pendulum block 1 is mounted on the upper mold assembly through a rotating shaft, and is aligned with the processing position and the insert. The bending pendulum block 1 is designed with an inwardly concave forming bending position 2, the outer edge of which adopts a passivated arc surface design, and the material is a heat-treated high-strength alloy steel to improve its wear resistance and service life.

[0023] More specifically, a buffer curved surface block 3 with an arc-shaped outer surface is arranged on the arc surface of the bending pendulum block 1. The buffer curved surface block 3 is made of a polymer composite material and has excellent elasticity and wear resistance.

[0024] Furthermore, the outer surface of the buffer curved block 3 smoothly transitions with the outer surface of the bending pendulum block 1. This design provides an effective buffering function in actual operation, preventing marks from being generated on the surface of the material sheet, thereby improving the surface quality of the finished product.

[0025] In this embodiment, the upper die assembly is also provided with a plurality of punches and press blocks, which are arranged relative to the processing position, and the punches are made of high-strength tungsten steel, and the press blocks are made of wear-resistant alloy materials, so as to further improve the processing accuracy and efficiency of the die. The design of the punches and press blocks ensures the stability and precise positioning of the sheet during the bending process, and avoids deviation and error during processing.

[0026] The specific operation steps are as follows: First, place the sheet to be processed on the processing position of the lower mold assembly to ensure that the contact surface between the sheet and the insert is flat and tight. Start the bending equipment, and the upper mold assembly moves downward under the action of the reset spring and the guide structure. At this time, the buffer curved surface block 3 in the bending pendulum block 1 first contacts the sheet and gradually applies pressure. The arc surface of the buffer curved surface block 3 gradually increases the contact area to achieve a smooth transition, effectively alleviating the impact force during initial contact. As the upper mold assembly continues to press down, the buffer curved surface block 3 breaks away from contact and the body of the bending pendulum block 1 processes and deforms the sheet.

[0027] It can be understood that, under the action of the buffer curved surface block 3, the pressure on the contact surface of the sheet material from the time of contact to the start of processing is evenly dispersed, reducing local stress concentration and preventing marks and deformation on the sheet material surface.

[0028] In practical applications, the mold can be used for high-precision bending of various metal sheets, especially for processing occasions with high requirements for surface quality. For example, in the fields of automobile manufacturing, aerospace industry, home appliance manufacturing, etc., the mold can significantly improve the surface quality and structural strength of the product, improve production efficiency and product competitiveness. By adjusting the material and shape of the buffer surface block, it can flexibly adapt to plates of different materials and thicknesses to meet diverse processing needs, with high flexibility and adaptability. Therefore, the mold has broad application prospects and significant market value.

[0029] Although the exemplary embodiments of the present disclosure have been described, it should be understood by those skilled in the art that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the scope of protection of the present disclosure as defined by the claims. The present disclosure is defined by the appended claims, and the equivalents of these claims are also included.

Claims

1. A pendulum block type negative angle bending die with a buffer function, characterized in that: include: An upper mold assembly, a lower mold assembly aligned with the upper mold assembly through a reset spring and a guide structure, and a bending pendulum block located at the upper mold assembly, wherein the lower mold assembly is provided with a processing position, in which an insert is provided, and correspondingly, the bending pendulum block is mounted on the upper mold assembly through a rotating shaft and aligned with the processing position and the insert; the bending pendulum block has a rotating shaft, through which it is mounted on the upper mold assembly, the bending pendulum block has a concave forming bending position, the outer edge of the bending position close to which has a blunted arc surface, and a buffer curved surface block with an arc-shaped outer surface is provided on the curved surface, and the outer surface of the buffer curved surface block has a smooth transition with the outer surface of the bending pendulum block.

2. A swing block type negative angle bending die with a buffer function as claimed in claim 1, characterized in that: The upper die assembly is provided with a plurality of punches and pressing blocks corresponding to the processing positions.

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