Anti-springback bending die for metal plate accessory machining

Abstract

The utility model provides an anti-rebound bending die for sheet metal accessory processing, which belongs to the technical field of sheet metal processing, and comprises a bending mechanism and a bottom plate, a connecting shell is fixedly mounted at the top of the bottom plate, a clamping seat is fixedly mounted on the surface of the connecting shell, and a sliding rail is fixedly mounted on the side wall of the connecting shell. Through the arrangement of the bending mechanism and the pressing mechanism, the anti-springback function is effectively achieved, the bending precision of metal plate accessories is improved, and the size deviation caused by springback is reduced; through the arrangement of the reset assembly, it is ensured that the bending head can be rapidly reset after bending operation, and the production efficiency is improved; due to the arrangement of the limiting hole, the movement range of the bending head is limited, and the operation safety and the mold stability are enhanced; due to the arrangement of the pressing assembly, it is guaranteed that the metal plate accessories are firmly fixed in the bending process, and displacement is avoided; operation is easy and convenient, maintenance is convenient, and the product quality of sheet metal machining is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet metal processing, and particularly relates to an anti-rebound bending die for processing sheet metal accessories. Background Art

[0002] Sheet metal bending dies are an important metal processing tool. Their background technology originated from the ancient manual metal forming process. With the industrial revolution and the development of manufacturing, they have gradually realized mechanization and automation. Their development history has witnessed the leap of modern industrial technology. This technology has a wide range of application scenarios in many fields such as automobiles, aviation, home appliances, and construction. By precisely controlling the degree of bending of metal sheets, it provides various products with metal structural parts with high structural strength and exquisite appearance.

[0003] Application number 201420380883.9 proposes a sheet metal bending die. The utility model relates to the field of sheet metal processing equipment and discloses a sheet metal bending die. The sheet metal bending die comprises a lower die and an upper die. The lower die comprises a lower plate, an inner bending die, a guide die, and a guide die mounting plate. The inner bending die and the guide die mounting plate are mounted on either side of the lower plate, and the guide die is bolted to the guide die mounting plate. The upper die comprises a clamping member and a bending member. The clamping member comprises an upper plate, a clamping die, a limit block, and a return spring. The clamping die is connected to the upper plate via limit bolts. The limit block is mounted on one side of the clamping die, and a return spring is provided on the limit bolt. The bending member comprises a bending die, a dovetail slider, a dovetail fixing block, and a return plate. The bending die is fixed to the dovetail fixing block via a dovetail slider, and the return plate is connected to the bending die. The sheet metal bending die can achieve different negative bending angles according to actual needs, ensuring consistent bending angles at both ends of the sheet metal and high bending precision.

[0004] However, in actual application, although the comparative documents can bend the sheet metal into different angles, they do not take into account the rebound of the sheet metal after bending. Utility Model Content

[0005] The purpose of the present invention is to provide an anti-rebound bending die for processing sheet metal accessories, aiming to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An anti-rebound bending die for processing sheet metal accessories, comprising:

[0008] The bending mechanism includes a base plate, a connecting shell is fixedly mounted on the top of the base plate, a clamping seat is fixedly mounted on the surface of the connecting shell, a slide rail is fixedly mounted on the side wall of the connecting shell, a bending head is slidably connected to the inner wall of the slide rail, a limiting rod is fixedly mounted on the top of the connecting shell, and a reset assembly for use with the bending head is provided in the inner cavity of the connecting shell;

[0009] The pressing mechanism includes a connecting plate, the top of which is fixedly connected to a connecting head, a limiting hole is provided on the surface of the connecting plate, a top block is fixedly installed on the bottom of the connecting plate, and a pressing component is provided on the inner wall of the connecting plate.

[0010] As a preferred solution of the present invention, the reset assembly includes a reset shell fixedly mounted on the inner wall of the connecting shell, a limiting groove is provided on the side wall of the reset shell, and the bending head is inserted into the limiting groove.

[0011] As a preferred solution of the present invention, the reset assembly (108) further includes a connecting rod (108c) fixedly connected to the side wall of the bending head (105), and the other end of the connecting rod (108c) is inserted into the side wall of the reset shell (108a).

[0012] As a preferred solution of the present invention, a reset spring is sleeved on the surface of the connecting rod, one end of the reset spring is fixedly connected to the inner wall of the reset shell, and the other end of the reset spring is fixedly connected to the side wall of the bending head.

[0013] As a preferred solution of the present invention, the pressing assembly includes a limiting column slidably connected to the inner cavity of the connecting plate, a pressure plate is fixedly installed at the bottom of the limiting column, a support column is fixedly installed at the top of the pressure plate, and a top spring is sleeved on the surface of the support column.

[0014] As a preferred solution of the present invention, a reserved groove for cooperating with the top block is provided on the surface of the connecting shell, and the reserved groove is arranged below the bending head.

[0015] As a preferred solution of the present invention, the bottom of the top block is arranged in an inclined surface, and the top block is used in conjunction with the bending head.

[0016] As a preferred solution of the present invention, the side wall of the limiting rod is movably connected to the inner wall of the limiting hole, and limits the connecting plate.

[0017] Compared with the existing technology, the beneficial effects of the present invention are: through the setting of the bending mechanism and the pressing mechanism, the anti-rebound function is effectively realized, the bending accuracy of the sheet metal accessories is improved, and the dimensional deviation caused by rebound is reduced; the setting of the reset component ensures the rapid reset of the bending head after the bending operation, thereby improving production efficiency; the setting of the limit hole limits the range of movement of the bending head, thereby enhancing the safety of operation and the stability of the mold; the setting of the pressing component ensures that the sheet metal accessories are firmly fixed during the bending process, thereby avoiding displacement; it is simple to operate and easy to maintain, thereby improving the product quality of sheet metal processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection between the bending mechanism and the pressing mechanism of the present invention;

[0021] Figure 3 This is an overall schematic diagram of the bending mechanism of the present utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of the bending mechanism of the present utility model;

[0023] Figure 5 It is an overall schematic diagram of the pressing mechanism of the present utility model.

[0024] In the figure: 100, bending mechanism; 101, bottom plate; 102, connecting shell; 103, holder; 104, slide rail; 105, bending head; 106, limiting rod; 107, reserved slot; 108, reset assembly; 108a, reset shell; 108b, limiting slot; 108c, connecting rod; 108d, reset spring; 200, pressing mechanism; 201, connecting plate; 202, connecting head; 203, limiting hole; 204, top block; 205, pressing assembly; 205a, limiting column; 205b, pressing plate; 205c, support column; 205d, top spring. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figures 1 to 5 , is the first embodiment of the utility model, which provides an anti-rebound bending die for sheet metal accessories processing, including:

[0030] The bending mechanism 100 includes a base plate 101, a connecting shell 102 fixedly mounted on the top of the base plate 101, a retaining seat 103 fixedly mounted on the surface of the connecting shell 102, a slide rail 104 fixedly mounted on the side wall of the connecting shell 102, a bending head 105 slidably connected to the inner wall of the slide rail 104, a limit rod 106 fixedly mounted on the top of the connecting shell 102, and a reset assembly 108 for use with the bending head 105 provided in the inner cavity of the connecting shell 102;

[0031] The pressing mechanism 200 includes a connecting plate 201, a connecting head 202 is fixedly connected to the top of the connecting plate 201, a limiting hole 203 is opened on the surface of the connecting plate 201, a top block 204 is fixedly installed on the bottom of the connecting plate 201, and a pressing component 205 is provided on the inner wall of the connecting plate 201.

[0032] The height of the pressing assembly 205 is greater than that of the top block 204, ensuring that the pressing assembly 205 contacts the sheet metal fitting first when pressing down, and when the pressing mechanism 200 leaves the sheet metal fitting, the top block 204 leaves the bending mechanism first.

[0033] The reset assembly 108 includes a reset shell 108a fixedly mounted on the inner wall of the connecting shell 102. A limiting groove 108b is defined on the side wall of the reset shell 108a, and the bending head 105 is inserted into the limiting groove 108b.

[0034] The reset assembly 108 also includes a connecting rod 108c fixedly connected to the side wall of the bending head 105, the other end of the connecting rod 108c is inserted into the side wall of the reset shell 108a, and a reset spring 108d is sleeved on the surface of the connecting rod 108c. One end of the reset spring 108d is fixedly connected to the inner wall of the reset shell 108a, and the other end of the reset spring 108d is fixedly connected to the side wall of the bending head 105.

[0035] Specifically, after the bending is completed, the return spring 108d bounces the bending head 105 back to its original position, and the connecting rod 108c cooperates with the return shell 108a to limit the bending head 105.

[0036] The pressing assembly 205 includes a limiting column 205a slidably connected to the inner cavity of the connecting plate 201, a pressing plate 205b is fixedly installed on the bottom of the limiting column 205a, a supporting column 205c is fixedly installed on the top of the pressing plate 205b, and a top spring 205d is sleeved on the surface of the supporting column 205c.

[0037] Furthermore, the support column 205c is slidably connected in the inner cavity of the connecting plate 201. When the sheet metal accessories are bent, the support column 205c will drive the pressure plate 205b to move toward the connecting plate 201. When the bending is completed, the top spring 205d will bounce the support column 205c back to its original position, and the limit column 205a will limit the support column 205c when it moves.

[0038] A reserved groove 107 for cooperating with the top block 204 is formed on the surface of the connection shell 102 . The reserved groove 107 is arranged below the bending head 105 .

[0039] The bottom of the top block 204 is arranged in an inclined surface, and the top block 204 is used in conjunction with the bending head 105 .

[0040] It should be noted that the side wall of the limiting rod 106 is movably connected to the inner wall of the limiting hole 203 and limits the connecting plate 201 .

[0041] When in use, the pressing mechanism 200 is connected to the cylinder through the connecting head 202. The cylinder drives the connecting plate 201 to drive the pressing assembly 205 and the top block 204 to move downward. The pressing assembly 205 first contacts the sheet metal accessories and fixes the sheet metal accessories in the holder 103. The top block 204 pushes the bending head 105 forward and moves it into the reserved groove 107. The bending head 105 bends the sheet metal accessories fixed in the holder 103. After the bending is completed, the connecting plate 201 drives the pressing assembly 205 and the top block 204 to leave the bending mechanism. The return spring 108d in the return shell 108a bounces the bending head 105 back to its original position. The connecting rod 108c limits the bending head 105 in the horizontal direction, and the limiting groove 108b limits the range of movement of the bending head 105.

[0042] In summary, the bending process of the sheet metal accessories is effectively controlled. During the bending process, the pressing component 205 first fixes the sheet metal accessories to prevent them from rebounding during bending, thereby ensuring the dimensional accuracy after bending; the top block 204 pushes the bending head 105 into the reserved groove 107, further ensuring the accuracy of the bending. At the same time, the coordinated use of the reset spring 108d and the connecting rod 108c quickly resets the bending head 105 after the bending is completed, and limits its range of motion, effectively reducing the rebound phenomenon of the sheet metal after bending, and improving the processing quality and consistency of the product.

[0043] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0045] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. An anti-rebound bending die for sheet metal parts processing, characterized by: include, A bending mechanism (100) comprises a base plate (101), a connecting shell (102) fixedly mounted on the top of the base plate (101), a holder (103) fixedly mounted on the surface of the connecting shell (102), a slide rail (104) fixedly mounted on the side wall of the connecting shell (102), a bending head (105) slidably connected to the inner wall of the slide rail (104), a limiting rod (106) fixedly mounted on the top of the connecting shell (102), and a reset assembly (108) used in conjunction with the bending head (105) provided in the inner cavity of the connecting shell (102); The pressing mechanism (200) comprises a connecting plate (201), a connecting head (202) is fixedly connected to the top of the connecting plate (201), a limiting hole (203) is provided on the surface of the connecting plate (201), a top block (204) is fixedly installed on the bottom of the connecting plate (201), and a pressing assembly (205) is provided on the inner wall of the connecting plate (201).

2. The anti-rebound bending die for sheet metal parts processing according to claim 1, characterized in that: The reset assembly (108) comprises a reset shell (108a) fixedly mounted on the inner wall of the connection shell (102); a limiting groove (108b) is provided on the side wall of the reset shell (108a); and the bending head (105) is inserted into the limiting groove (108b).

3. The anti-rebound bending die for sheet metal parts processing according to claim 2, characterized in that: The reset assembly (108) further includes a connecting rod (108c) fixedly connected to the side wall of the bending head (105), and the other end of the connecting rod (108c) is plugged into the side wall of the reset shell (108a).

4. The anti-rebound bending die for sheet metal parts processing according to claim 3, characterized in that: A return spring (108d) is sleeved on the surface of the connecting rod (108c), one end of the return spring (108d) is fixedly connected to the inner wall of the return shell (108a), and the other end of the return spring (108d) is fixedly connected to the side wall of the bending head (105).

5. The anti-rebound bending die for sheet metal parts processing according to claim 4, characterized in that: The pressing assembly (205) comprises a limiting column (205a) slidably connected to the inner cavity of the connecting plate (201); a pressing plate (205b) is fixedly mounted on the bottom of the limiting column (205a); a supporting column (205c) is fixedly mounted on the top of the pressing plate (205b); and a top spring (205d) is sleeved on the surface of the supporting column (205c).

6. The anti-rebound bending die for sheet metal parts processing according to claim 5, characterized in that: A reserved groove (107) for use with the top block (204) is provided on the surface of the connecting shell (102), and the reserved groove (107) is arranged below the bending head (105).

7. The anti-rebound bending die for sheet metal parts processing according to claim 6, characterized in that: The bottom of the top block (204) is arranged in an inclined surface, and the top block (204) is used in conjunction with the bending head (105).

8. The anti-rebound bending die for sheet metal parts processing according to claim 7, characterized in that: The side wall of the limiting rod (106) is movably connected to the inner wall of the limiting hole (203) and limits the connecting plate (201).

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