90-degree bending one-station forming die

Abstract

The utility model discloses a 90-degree bending one-station forming die which comprises an upper die base, an upper die plate, a middle die plate, a lower die plate and a lower die base which are sequentially arranged, an insert is arranged on the upper die plate, a punch is installed on the insert, an assembly groove is formed in the lower die plate, an ejector block matched with one side of the punch is arranged on one side in the assembly groove, and the ejector block is connected with the lower die base. A forming block matched with the other side of the punch is arranged on the other side in the assembling groove, a first forming opening is formed in the side, close to the punch, of the forming block, and a guide slope for guiding the punch to obliquely move towards the first forming opening is arranged on the side, close to the punch, of the ejector block. By means of the mode, products can be bent and formed in place in a one-stop mode, space arrangement is reduced, bending work stations are reduced, and machining cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, in particular to a 90° bending one-step forming die. Background Art

[0002] When the existing die is used to bend a product, the conventional bending structure of the existing die is 45° bending, then 90° bending, and then a one-step alignment. Therefore, three workstations are required to complete the 90° bending of the product. In this way, the space layout is relatively large, the die opening cost is relatively high, and the efficiency is relatively low. Summary of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a 90° bending one-step forming die, which can bend and form the product in one step, reduce the space layout, reduce the bending workstations, and reduce the processing cost.

[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a 90° bending one-step forming die, including: an upper die base, an upper template, a middle template, a lower template and a lower die base arranged in sequence. An insert block is arranged on the upper template, a punch is installed on the insert block, an assembly groove is opened on the lower template, a top block matched with one side of the punch is arranged on one side in the assembly groove, a forming block matched with the other side of the punch is arranged on the other side in the assembly groove, a first forming opening is opened on one side of the forming block close to the punch, and a guiding slope for guiding the punch to move obliquely towards the first forming opening is arranged on one side of the top block close to the punch.

[0005] Preferably, an upper die backing plate is arranged between the upper die base and the upper template. A cushion block is arranged on the upper die backing plate. A spring is arranged between the cushion block and the end of the punch far from the assembly groove. The spring provides a certain elastic force for the punch, which is convenient for the cooperation between the punch and the top block when the die is closed.

[0006] Preferably, a pressing plate is connected to the upper template. The punch is provided with a limiting groove matched with the pressing plate. The movement range of the punch is limited by the cooperation between the pressing plate and the limiting groove.

[0007] Preferably, the pressing plate is connected to the upper template by screws.

[0008] Preferably, the punch is provided with a second forming opening matched with the first forming opening. The product is bent through the cooperation between the second forming opening and the first forming opening.

[0009] Preferably, a middle die backing plate is arranged on one side of the middle template.

[0010] Preferably, a lower die backing plate is arranged between the lower template and the lower die base.

[0011] Preferably, opposite limiting columns are installed on both the upper die base and the lower die base.

[0012] The beneficial effects of the present utility model are as follows: Through the guiding slope of the top block, lateral thrust is provided for the punch, so that the product can be gradually bent, and the 90° bending of the product is completed under the cooperation of the first forming opening of the forming block and the second forming opening of the punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model when the mold is opened;

[0014] Figure 2 is Figure 1 the enlarged schematic diagram of part A in

[0015] Figure 3 is the overall structural schematic diagram of the present utility model when the mold is closed.

[0016] The markings of each component in the drawings are as follows:

[0017] 1. Upper mold base;

[0018] 2. Upper template; 21. Insert block; 22. Upper mold backing plate; 221. Spacer block; 23. Pressure plate; 24. Screw;

[0019] 3. Middle template; 31. Middle mold backing plate;

[0020] 4. Lower template; 41. Assembly groove; 42. Lower mold backing plate;

[0021] 5. Lower mold base;

[0022] 6. Punch; 61. Limit groove; 62. Second forming opening;

[0023] 7. Top block; 71. Guiding slope;

[0024] 8. Forming block; 81. First forming opening;

[0025] 9. Spring; 100. Limit post; 200. Product. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0029] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0031] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0032] For the physical quantities in the formula, if there is no separate annotation, they should be understood as the basic quantities of the SI base units, or the derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0033] Embodiment:

[0034] Reference Figures 1 - 3 , a 90° bending one-step forming die, comprising: an upper die base 1, an upper template 2, a middle template 3, a lower template 4 and a lower die base 5 arranged in sequence. A insert block 21 is installed on the upper template 2, and a punch 6 is installed on the insert block 21. The punch 6 can move on the insert block 21 and there is a certain gap between the outer wall of the punch 6 and the inner wall of the insert block 21, so that the punch 6 can have a radial displacement on the insert block 21, reserving space for the radial displacement of the punch 6 when gradually bending the product 200. An assembly groove 41 is opened on the lower template 4. On one side of the assembly groove 41, a top block 7 that cooperates with one side of the punch 6 is fixedly connected, and on the other side of the assembly groove 41, a forming block 8 that cooperates with the other side of the punch 6 is fixedly connected. A first forming opening 81 is opened on the side of the forming block 8 close to the punch 6. A guiding slope 71 for guiding the punch 6 to move obliquely towards the first forming opening 81 is provided on the side of the top block 7 close to the punch 6.

[0035] Reference Figures 1 - 3 , an upper die backing plate 22 is installed between the upper die base 1 and the upper template 2. A spacer block 221 is installed on the upper die backing plate 22. A spring 9 is arranged between the spacer block 221 and the end of the punch 6 far from the assembly groove 41. The spring 9 provides a certain elastic force for the punch 6, facilitating the cooperation between the punch 6 and the top block 7 when closing the die, so as to achieve the soft contact between the punch 6 and the top block 7, thereby avoiding damaging the punch 6 or the top block 7 and also being able to better bend the product 200.

[0036] Reference Figures 1 - 3 , a pressure plate 23 is connected to the upper template 2. The pressure plate 23 is connected to the upper template 2 by screws 24. The punch 6 is provided with a limit groove 61 that cooperates with the pressure plate 23. One end of the pressure plate 23 is within the range of the limit groove 61, so as to limit the movement range of the punch 6 through the cooperation between the pressure plate 23 and the limit groove 61, avoiding damage caused by the movement range of the punch 6 exceeding the specified maximum range.

[0037] ReferenceFigures 1 - 3 The punch 6 is provided with a second forming opening 62 that cooperates with the first forming opening 81, so that the product 200 is bent through the cooperation of the second forming opening 62 and the first forming opening 81. Since the product 200 is in a long strip shape, when the mold is closed, one side of the product 200 is in contact with the first forming opening 81, and the other side is in contact with the second forming opening 62, thereby completing the bending of the product 200.

[0038] Reference Figures 1 - 3 On one side of the middle template 3, a middle mold backing plate 31 is installed. Between the lower template 4 and the lower mold base 5, a lower mold backing plate 42 is installed, and the lower mold backing plate 42 is installed on the lower mold backing plate 42.

[0039] Reference Figures 1 - 3 On both the upper mold base 1 and the lower mold base 5, opposite limit columns 100 are installed, so as to support and limit the position between the upper mold base 1 and the lower mold base 5 when the mold is closed.

[0040] Reference Figures 1 - 3 Bending process: When starting to close the mold and bend the product 200, under the elastic force of the spring 9, the punch 6 opens towards the top block 7. During the process of closing the mold, the punch 6 contacts the guiding slope 71 of the top block 7 first. Thus, the top block 7 pushes the punch 6 back through the guiding slope 71. As a result, the punch 6 receives a lateral force, so that the punch 6 gradually adheres to one end of the product 200 at the second forming opening 62 and gradually bends one end of the product 200 under the lateral push of the guiding slope 71. Finally, when the punch 6 is in place, one end of the product 200 is bent in place.

[0041] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A 90° bending one-stop forming mold, characterized in that: include: An upper die base (1), an upper die plate (2), a middle die plate (3), a lower die plate (4) and a lower die base (5) are arranged in sequence; an insert (21) is provided on the upper die plate (2), a punch (6) is mounted on the insert (21), an assembly groove (41) is provided on the lower die plate (4), a top block (7) matched with one side of the punch (6) is provided on one side of the assembly groove (41), a forming block (8) matched with the other side of the punch (6) is provided on the other side of the assembly groove (41), a first forming opening (81) is provided on the side of the forming block (8) close to the punch (6), and a guide slope (71) for guiding the punch (6) to move obliquely toward the first forming opening (81) is provided on the side of the top block (7) close to the punch (6).

2. A 90° bending one-stop forming mold according to claim 1, characterized in that: An upper die pad (22) is arranged between the upper die seat (1) and the upper die plate (2), a cushion block (221) is arranged on the upper die pad (22), a spring (9) is arranged between the cushion block (221) and an end of the punch (6) away from the assembly groove (41), and the spring (9) provides a certain elastic force for the punch (6) to facilitate the cooperation between the punch (6) and the top block (7) when the mold is closed.

3. The 90° bending one-stop forming mold according to claim 2, characterized in that: The upper mold plate (2) is connected to a pressing plate (23), and the punch (6) is provided with a limiting groove (61) matched with the pressing plate (23). The moving range of the punch (6) is limited by the matching of the pressing plate (23) and the limiting groove (61).

4. The 90° bending one-stop forming mold according to claim 3, characterized in that: The pressing plate (23) is connected to the upper template (2) via screws (24).

5. The one-stop 90° bending forming die according to claim 1, characterized in that: The punch (6) is provided with a second molding opening (62) that matches the first molding opening (81), and the product (200) is bent through the cooperation between the second molding opening (62) and the first molding opening (81).

6. The 90° bending one-stop forming mold according to claim 1, characterized in that: A middle mold pad (31) is provided on one side of the middle mold plate (3).

7. The one-stop 90° bending forming die according to claim 1, characterized in that: A lower die pad (42) is provided between the lower die plate (4) and the lower die base (5).

8. The 90° bending one-stop forming mold according to claim 1, characterized in that: Relative limiting columns (100) are installed on both the upper die base (1) and the lower die base (5).

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