Novel anti-springback bending die structure

Abstract

The utility model discloses a novel anti-springback bending die structure, an upper die comprises an upper die base and an upper bending block, the upper bending block is fixed at the axis position below the upper die base, the left side and the right side of the upper bending block are triangular inclined planes, a lower die comprises a lower die base, a lower bending block and a stripper plate, a lower die groove is arranged in the center of the lower die base, the stripper plate is contained in the lower die groove, and the lower bending block is fixed on the lower die base. The upper end of the lower bending block is connected with the upper end of the lower die base through a first spring, the lower end of the lower bending block is connected with the lower end of the lower die base through a second spring, the lower bending block comprises a bending part and a rotating part, a bending groove is formed in the inner edge of the bending part, and the inner wall of the rotating part is rotationally connected with the outer wall of the stripper plate through a wedge structure. The bending groove of the lower bending block rotates to be matched with the triangular inclined surface of the upper bending block; the spring is combined with the bending block for rotating and resetting, so that the bending device can be applied to the conditions of high product bending requirement, high product hardness and large resilience, the requirements of the bending angle and size of the product are ensured, and the stability of the bending quality of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending moulds, in particular to a novel anti-rebound bending mould structure. Background Art

[0002] like Figure 5 The high-strength steel formed parts shown in the figure have a very high bending height requirement of 200 mm. The bending mold structure of the existing technology can no longer meet the forming angle and size requirements of such products. It is necessary to improve the bending mold structure to ensure effective forming of the product. Summary of the invention

[0003] The utility model aims to provide a novel anti-rebound bending die structure.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] The utility model discloses a novel anti-rebound bending mold structure, which is characterized in that it comprises an upper mold and a lower mold, the upper mold comprises an upper mold base and an upper bending block, the upper bending block is fixed at the axis center below the upper mold base, the left and right sides of the upper bending block are triangular inclined surfaces, and the width of the upper bending block gradually increases from top to bottom, the lower mold comprises a lower mold base, a lower bending block and a stripping plate, the center of the lower mold base is provided with a lower mold groove, the lower mold groove accommodates the stripping plate, the upper end of the lower bending block is movably connected to the upper end of the lower mold base through a first spring, the lower end of the lower bending block is movably connected to the lower end of the lower mold base through a second spring, the lower bending block comprises a bending portion and a rotating portion that are connected in an integral manner up and down, the inner edge of the bending portion is provided with a bending groove, the inner wall of the rotating portion is rotatably connected to the outer wall of the stripping plate through an inclined wedge structure, and when the stripping plate is pressed down to the bottom end of the lower mold groove, the bending groove of the lower bending block rotates to match the triangular inclined surface of the upper bending block.

[0006] Furthermore, the lower mold base includes a mold base body, the inner edge of the upper end of the mold base body is provided with an outer groove, a lower pad is fixedly provided in the outer groove, the inner edge of the upper end of the lower pad is provided with an inner groove, the inner groove limits the downward range of the lower bending block, and the lower bending block is rotatably connected to the inner groove.

[0007] Furthermore, the upper die comprises an upper supporting plate, and the lower end of the upper supporting plate is fixedly connected to the upper die base and the upper end of the upper bending block via upper pads.

[0008] Furthermore, an upper pad is fixedly provided between the upper pad foot and the upper bending block.

[0009] Furthermore, the lower mold includes a lower supporting plate, and the upper end of the lower supporting plate is fixedly connected to the lower end of the lower mold base via a lower pad.

[0010] The utility model performs rotational reset and vertical reset by combining a spring with a bending block, and can be applied to situations where products have high bending requirements, high product hardness, and large rebound, thereby ensuring the angle and size requirements of the product bending and improving the stability of the product bending quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the side structure of the upper mold and the lower mold of the utility model;

[0012] Figure 2 It is the side structure of the upper mold and the lower mold of the utility model;

[0013] Figure 3 It is a three-dimensional structural schematic diagram of the lower mold of the utility model;

[0014] Figure 4 It is a three-dimensional structural schematic diagram of the upper mold of the utility model;

[0015] Figure 5 This is a schematic diagram of the structure of high-strength steel formed parts products.

[0016] Reference numerals:

[0017] 1 upper support plate, 2 upper pads, 3 upper die base, 4 upper pads, 5 upper bending blocks,

[0018] 6 first spring, 7 lower bending block, 71 bending portion, 72 rotating portion,

[0019] 8 stripper plate, 9 lower die base, 10 second spring,

[0020] 11 lower foot, 12 lower supporting plate, 13 lower pad, 14 outer groove, 15 inner groove, 16 product. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model discloses a novel anti-rebound bending die structure, comprising an upper die and a lower die. Figure 1 and Figure 4As shown, the upper mold includes an upper mold base 3 and an upper bending block 5. The upper bending block 5 is fixed at the axis below the upper mold base 3. The left and right sides of the upper bending block 5 are triangular inclined surfaces. The width of the upper bending block 5 gradually increases from top to bottom. The upper mold includes an upper support plate 1. The lower end of the upper support plate 1 is fixedly connected to the upper mold base 3 and the upper end of the upper bending block 5 through an upper pad 2. In one embodiment, an upper pad 4 is fixedly provided between the upper pad 2 and the upper bending block 5.

[0023] like Figure 1~Figure 3 As shown, the lower die includes a lower die base 9, a lower bending block 7 and a stripping plate 8. A lower die groove is provided in the center of the lower die base 9, and the lower die groove accommodates the stripping plate 8. The upper end of the lower bending block 7 is movably connected to the upper end of the lower die base 9 through a first spring 6, and the lower end of the lower bending block 7 is movably connected to the lower end of the lower die base 9 through a second spring 10.

[0024] like Figure 2 As shown, the lower bending block 7 includes a bending portion 71 and a rotating portion 72 which are connected integrally up and down. The inner edge of the bending portion 71 is provided with a bending groove. The inner wall of the rotating portion 72 is rotationally connected to the outer wall of the stripping plate 8 through an inclined wedge structure. When the stripping plate 8 is pressed down to the bottom end of the lower mold groove, the bending groove of the lower bending block 7 rotates to cooperate with the triangular inclined surface of the upper bending block 5.

[0025] The lower die also includes a lower supporting plate 12 , the upper end of which is fixedly connected to the lower end of the lower die base 9 via a lower pad 11 .

[0026] The lower die base 9 includes a die base body, the inner edge of the upper end of the die base body is provided with an outer groove 14, a lower pad 13 is fixedly provided in the outer groove 14, an inner edge of the upper end of the lower pad 13 is provided with an inner groove 15, the inner groove 15 limits the downward range of the lower bending block 7, and the lower bending block 7 is rotatably connected to the inner groove 15.

[0027] The use process of the bending mold of this utility model is as follows:

[0028] like Figure 1 As shown, the punch slide drives the upper die to move downward, the upper bending block 5 first contacts the product 16, the punch slide continues to move downward, the upper bending block 5 presses the stripper plate 8 downward, and during the downward movement of the stripper plate 8, the lower bending block 7 rotates through the inclined wedge structure, aligning the bending groove of the lower bending block 7 with the inclined surface of the upper bending block 5, until the upper bending block 5 is embedded in and contacts the bottom end of the lower die groove, the punch slide stops moving, the upper die and the lower die are closed, and the bending of the product 16 is completed, see Figure 2 .

[0029] Then, the punch slider drives the upper die to move upward, the upper bending block 5 is separated from the lower die groove and the lower bending block 7, and the lower bending block 7 is rotated and reset by the first spring 6 and the second spring 10. The punch slider drives the upper die to continue to move upward to remove the material, and the product 16 is removed to complete the material removal until the punch slider stops rising and the mold opening action is completed. At this point, the use process of the utility model ends.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A new anti-rebound bending die structure, characterized in that: The invention comprises an upper die and a lower die, wherein the upper die comprises an upper die base (3) and an upper bending block (5), wherein the upper bending block (5) is fixed at the axis below the upper die base (3), and the left and right sides of the upper bending block (5) are triangular inclined surfaces, and the width of the upper bending block (5) gradually increases from top to bottom; the lower die comprises a lower die base (9), a lower bending block (7) and a stripping plate (8), wherein a lower die groove is provided at the center of the lower die base (9), and the lower die groove accommodates the stripping plate (8), and the upper end of the lower bending block (7) and the upper end of the lower die base (9) are connected by a first The lower end of the lower bending block (7) is movably connected to the lower end of the lower die seat (9) via a second spring (10); the lower bending block (7) comprises a bending portion (71) and a rotating portion (72) which are connected in one piece; the inner edge of the bending portion (71) is provided with a bending groove; the inner wall of the rotating portion (72) is rotatably connected to the outer wall of the stripping plate (8) via an inclined wedge structure; when the stripping plate (8) is pressed down to the bottom end of the lower die groove, the bending groove of the lower bending block (7) rotates to match the triangular inclined surface of the upper bending block (5).

2. The novel anti-rebound bending die structure according to claim 1 is characterized in that: The lower die base (9) comprises a die base body, the inner edge of the upper end of the die base body is provided with an outer groove (14), a lower pad (13) is fixedly provided in the outer groove (14), an inner edge of the upper end of the lower pad (13) is provided with an inner groove (15), the inner groove (15) limits the downward range of the lower bending block (7), and the lower bending block (7) is rotatably connected to the inner groove (15).

3. The novel anti-rebound bending die structure according to claim 1 is characterized in that: The upper die comprises an upper support plate (1), the lower end of the upper support plate (1) being fixedly connected to the upper die base (3) and the upper end of the upper bending block (5) via upper pads (2).

4. The novel anti-rebound bending die structure according to claim 3 is characterized in that: An upper pad (4) is fixedly provided between the upper pad foot (2) and the upper bending block (5).

5. The novel anti-rebound bending die structure according to claim 1 is characterized in that: The lower die comprises a lower supporting plate (12), the upper end of the lower supporting plate (12) being fixedly connected to the lower end of the lower die base (9) via a lower pad (11).

Images