Bending forming structure in stamping die

Abstract

The utility model relates to the technical field of stamping dies, in particular to an inner bending forming structure of a stamping die. Comprising an inner forming part, an outer forming part, a left sliding block and a right sliding block, wherein the inner forming part is arranged in a lower stamping die and used for bending a product; the outer forming part is obliquely arranged on one side of the inner forming part and used for stamping reinforcing ribs on the product; the left sliding block is arranged on the side of the outer forming part and used for pushing the outer forming part to stamp the product; after the upper stamping die and the lower stamping die are assembled, the upper stamping die and the lower stamping die respectively push the inner forming piece and the upper stamping punch and the inclined wedge of the left sliding block, and a jacking assembly for pushing the inner forming piece to ascend is arranged in the lower stamping die below the inner forming piece; the end face, close to one side of the outer forming piece, of the left sliding block is arranged to be an inclined face. The die is simple and novel in structure, smooth stamping and die stripping can be guaranteed, product die stripping is fast, the product does not deform during die stripping, and the product quality is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to an inner bending forming structure of a stamping die. Background Art

[0002] Stamping machine tools are commonly used mechanical equipment in the field of metal processing. Stamping machine tools are stamping equipment that use molds to form stamping materials. In stamping die technology, the bending angle of the product is small, and the bending angle has a reinforcing rib structure. When the punch press forms from top to bottom, when the punch press moves upward, the inner formed part will hit the upper part of the product during the reset process, causing the product to deform and fail to achieve smooth demolding of the product. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0004] A bending and forming structure inside a stamping die comprises: an inner forming part arranged in a lower stamping die and used for bending a product, an outer forming part arranged obliquely at one side of the inner forming part and used for stamping reinforcing ribs on the product, a left slider arranged at the side of the outer forming part and used to push the outer forming part to stamp the product, and an upper pressing punch and an inclined wedge arranged in an upper stamping die and corresponding to the inner forming part and the left slider, and respectively pushing the inner forming part and the left slider after the upper stamping die and the lower stamping die are closed, a lifting component for pushing the inner forming part to rise is arranged in the lower stamping die below the inner forming part; an inclined surface is arranged on the end face of the left slider close to the side of the outer forming part, and when the left slider is pushed by the inclined wedge, the inclined surface gradually pushes the outer forming part to stamp the product, so that reinforcing ribs are formed on the product.

[0005] In this embodiment, a side block is provided on one side of the left sliding block away from one end of the inclined surface, and a first return spring for pushing the side block is provided in the lower punching die on one side of the side block.

[0006] In this embodiment, a through slide groove is provided in the outer molded part, and a reinforcing rib molded part pushed by the left slider is slidably provided in the through slide groove. A push block is formed along the thickness direction of the outer molded part on one side of the left slider, and a second return spring for pushing the push block is provided in the stamping die under the push block.

[0007] In this embodiment, the inner forming part includes a bending forming block and a guide slider slidably arranged on the lower stamping die and connected to the bending forming block. A limiting flange is formed on one side of the guide slider inserted into the lower stamping die. The lifting assembly contacts the guide slider and pushes the guide slider.

[0008] In this embodiment, the lifting assembly adopts a spring ejector.

[0009] In this embodiment, the outer molding is arranged vertically to the left sliding block.

[0010] Compared with the prior art, the utility model has the following advantages and positive effects: the utility model realizes product bending and reinforcing ribs by setting multiple mutually cooperating parts of inner forming parts, outer forming parts, left slider, upper pressing punch, inclined wedge and lifting assembly, and realizes product bending and reinforcing ribs by transmitting up, down, left and right motions between multiple parts. When the upper punching die and the lower punching die are in the open state, when the upper punching die is moving downward, the inner forming part presses the product and fits with the lower punching die, and the inclined wedge contacts the left slider to push the outer forming part and the reinforcing rib forming part to prepare for bending and forming. When the upper punching die continues to move downward and is completely closed with the lower punching die, the upper pressing punch presses the inner forming part, the inclined wedge pushes the left slider, and the left slider pushes the outer forming part and the reinforcing rib forming part to complete bending and reinforcing rib forming; when the upper punching die rises, the inclined wedge rises driven by the first reset spring, and the left slider and the outer forming part and the reinforcing forming part are reset to the bending position of the product under the action of the second reset spring, and the inner forming part rises obliquely under the action of the lifting assembly, thereby avoiding the upper part of the product bending and demolding smoothly. The utility model has a simple and novel structure, can ensure smooth stamping and demoulding, and the product demoulding is fast and the product is not deformed during demoulding, thus effectively ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the upper punching die and the lower punching die of the utility model when the die is opened;

[0012] Figure 2 FIG is a schematic structural diagram of the upper punching die and the lower punching die of the utility model when the upper punching die and the lower punching die are closed;

[0013] Figure 3 It is a schematic diagram of the structure of the punched reinforcement rib of the reinforcement rib forming part in the utility model. DETAILED DESCRIPTION

[0014] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the 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 violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0015] See also Figure 1 , Figure 2 and Figure 3The present embodiment provides a stamping die inner bending forming structure, which includes an inner forming part 1, an outer forming part 2, a left slider 3, an upper pressing punch 4, an inclined wedge 5 and a lifting assembly 6. The inner forming part 1, the outer forming part 2, the left slider 3 and the lifting assembly 6 are arranged in the lower stamping die 100. The outer forming part 2 is located on one side of the inner forming part 1. The left slider 3 is located on one side of the outer forming part 2 and pushes the outer forming part 2 close to the inner forming part 1, so that the outer forming part 2 punches the product with a reinforcing rib. The lifting assembly 6 is located below the inner forming part 1 and is used to push the inner forming part 1. The upper punch 4 and the inclined wedge 5 are arranged in the upper stamping die 200, and correspond to the positions of the inner molded part 1 and the left slider 3 one by one. When the upper stamping die 200 moves downward to close the mold with the lower stamping die 100, the upper punch 4 and the inclined wedge 5 push the inner molded part 1 and the left slider 3 respectively, so as to realize the inner molded part 1 and the outer molded part 2 to stamp and bend the product and to stamp and form reinforcing ribs on the product. When demolding after bending and forming through the above-mentioned arrangement, the upper bent part of the product can be avoided to be demolded smoothly, and the problem of deformation of the product during demolding can be effectively avoided.

[0016] In this embodiment, in order to prevent the outer molded part 2 from colliding with the product when the product is demoulded and to prevent the reinforcing ribs of the product from being deformed, an inclined surface is set at the end face of the left slider 3 close to the outer molded part 2, and the outer molded part 2 and the left slider 3 are set vertically. When the left slider 3 is pushed by the inclined wedge 5, the inclined surface gradually pushes the outer molded part 2 to stamp the product, so that the product forms reinforcing ribs. A side block 30 is provided on one side of the left slider 3 away from the end of the inclined surface, and a first return spring 31 for pushing the side block 30 is provided in the lower stamping die 100 on one side of the side block 30; and a through slide groove is provided in the outer molded part 2, and the slide in the through slide groove A reinforcing rib forming part 20 pushed by the left slider 3 is provided, and the reinforcing rib forming part 20 is used to stamp reinforcing ribs on the product. A push block 21 is formed along the thickness direction of the outer forming part 2 on one side of the left slider 3, and a second return spring 22 for pushing the push block 21 is provided in the stamping die 100 under the push block 21. When the upper stamping die 200 moves upward, the first return spring 31 pushes the inclined surface of the left slider 3 to gradually separate from the outer forming part 2, so that the second return spring 22 pushes the outer forming part 2, so that the reinforcing rib forming part 20 and the outer forming part 2 are separated from the product, so that when the product is demolded, it will not touch the outer forming part 2, effectively avoiding product deformation.

[0017] In this embodiment, the inner forming part 1 includes a bending forming block 10 and a guide slider 11 slidably arranged on the lower stamping die 100 and connected to the bending forming block 10. A limiting flange is formed on one side of the guide slider 11 inserted into the lower stamping die 100. When the upper punch 4 moves downward, it pushes the bending forming block 10, so that the guide slider 11 slides in the lower stamping die 100, so that the bending forming block 10 can bend the product. After the bending is completed, the upper stamping die 200 drives the upper punch 4 to move upward. Since the lifting component 6 contacts with the guide slider 11 and pushes the guide slider 11, the bending forming block 10 is lifted, so that the product is separated from the bending forming block 10, thereby realizing the demolding of the product; by setting the limiting flange on the guide slider 11 as mentioned above, when the lifting component 6 lifts the bending forming block 10, it will not push the guide slider 11 away from the lower stamping die 100, thereby playing a limiting role. It should be noted that, in the present embodiment, a limiting boss cooperating with the limiting flange is provided in the slide groove of the lower punching die 100 where the guide slider 11 slides, so as to ensure the limiting effect; in addition, in the present embodiment, the lifting component 6 adopts a spring ejector.

[0018] In summary, the utility model realizes product bending and the addition of reinforcing ribs by setting up multiple mutually cooperating parts including inner molding part 1, outer molding part 2, left slide block 3, upper pressing punch 4, inclined wedge 5 and lifting assembly 6, and by transmitting up, down, left and right movements among the multiple parts. When the upper stamping die 200 and the lower stamping die 100 are in the open state, when the upper stamping die 200 moves downward, the inner forming part presses the product to fit with the lower stamping die 100, and the inclined wedge 5 contacts the left slider 3 to push the outer forming part and the reinforcing rib forming part 20 to prepare for bending and forming. When the upper stamping die 200 continues to move downward and is completely closed with the lower stamping die 100, the upper punch 4 presses the inner forming part, and the inclined wedge 5 pushes the left slider 3, and the left slider 3 pushes the outer forming part and the reinforcing rib forming part 20 to complete the bending and reinforcing rib forming; when the upper stamping die 200 rises, the inclined wedge 5 rises driven by the first return spring 31, and the left slider 3 and the outer forming part and the reinforcing forming part are reset to the bending position of the product under the action of the second return spring 22, and the inner forming part rises obliquely under the action of the lifting component 6, thereby avoiding the upper part of the product bend and demolding smoothly.

[0019] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A bending forming structure in a stamping die, characterized in that: include: An inner molded part arranged in the lower punching die and used for bending the product, an outer molded part arranged obliquely at one side of the inner molded part and used for punching reinforcement ribs on the product, a left slider arranged at the side of the outer molded part to push the outer molded part to punch the product, and an upper pressing punch and an inclined wedge arranged in the upper punching die and corresponding to the inner molded part and the left slider, and respectively pushing the inner molded part and the left slider after the upper punching die and the lower punching die are closed, a lifting component for pushing the inner molded part to rise is arranged in the lower punching die below the inner molded part; an inclined surface is arranged on the end face of the left slider close to the side of the outer molded part, and when the left slider is pushed by the inclined wedge, the inclined surface gradually pushes the outer molded part to punch the product, so that reinforcement ribs are formed on the product.

2. The inner bending forming structure of the stamping die according to claim 1, characterized in that: A side block is arranged on one side of the left sliding block away from one end of the inclined surface, and a first return spring for pushing the side block is arranged in a lower punching die on one side of the side block.

3. The inner bending forming structure of the stamping die according to claim 1, characterized in that: A through slide groove is arranged in the outer molded part, and a reinforcing rib molded part pushed by the left slider is slidably arranged in the through slide groove. A push block is formed along the thickness direction of the outer molded part on one side of the left slider, and a second return spring for pushing the push block is arranged in the stamping die under the push block.

4. The inner bending forming structure of the stamping die according to claim 1, characterized in that: The inner forming part includes a bending forming block and a guide slider slidably arranged on the lower punching die and connected to the bending forming block. A limiting flange is formed on one side of the guide slider inserted into the lower punching die. The lifting component contacts the guide slider and pushes the guide slider.

5. The inner bending forming structure of the stamping die according to claim 4, characterized in that: The lifting assembly adopts a spring ejector.

6. The inner bending forming structure of the stamping die according to claim 1, characterized in that: The outer molding is arranged vertically with the left sliding block.

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