Stamping die for correcting U-shaped bending perpendicularity of thick material

Abstract

The utility model discloses a stamping die for correcting verticality of U-shaped bending of thick materials, which comprises a lower die holder and an upper die holder, a concave die plate is arranged on the lower die holder, two grooves for accommodating bending edges of a product are arranged on the concave die plate, inclined slide blocks positioned on the outer side of the product are arranged in the two grooves in an inclined sliding manner, and the inclined slide blocks are positioned on the outer side of the product. A first ejector rod is arranged at the bottom of the inclined sliding block in a sliding mode, a first spring is arranged between the first ejector rod and the lower die base, a fixing plate is arranged at the bottom of the upper die base, a discharging plate is arranged at the bottom of the fixing plate in a sliding mode, and a punch penetrating through the discharging plate is arranged in the fixing plate. The punch is used for pressing the inclined sliding block downwards so that the inclined sliding block can move in the inclined direction. The bent edge correcting device has the advantages that a product is fixed through the discharging plate, then the punch moves downwards to drive the inclined sliding block to correct the bent edge of the product, and efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the field of molds, and in particular relates to a punching mold for correcting the verticality of a thick material U-shaped bend. Background Art

[0002] If the U-shaped bending of thick metal stamping products is formed by one-time bending, the angle will generally be outward (greater than 90 degrees). Even if multi-step bending is adopted (such as first bending at 45 degrees and then bending at 90 degrees), it is difficult to achieve a bending angle of 90 degrees. At the same time, bending compensation must be done in the intermediate process of multi-step bending. If the performance of batch raw materials fluctuates, the bending parameters of this intermediate process need to be adjusted, and the bending punch and bending die need to be remade, which increases the mold debugging time, reduces production efficiency, and increases production costs. Utility Model Content

[0003] The utility model aims to provide a punching die for correcting the verticality of U-shaped bending of thick materials.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A stamping die for correcting the verticality of a U-shaped bend of thick material comprises a lower die base and an upper die base, the lower die base is provided with a concave die plate, the concave die plate is provided with two grooves for accommodating the bent edges of a product, an inclined sliding block located on the outside of the product is obliquely slidably arranged in the two grooves, a first push rod is slidably arranged at the bottom of the inclined sliding block, a first spring is arranged between the first push rod and the lower die base, a fixed plate is provided at the bottom of the upper die base, a stripping plate is slidably arranged at the bottom of the fixed plate, a punch penetrating the stripping plate is arranged in the fixed plate, and the punch is used to press down the inclined sliding block to move the inclined sliding block along the inclined direction.

[0006] Preferably, a guide block located outside the product is provided in the groove, a slide groove is provided on the guide block along an inclined direction, and a slider sliding in the slide groove is provided on the inclined slider.

[0007] Preferably, the concave template is slidably provided with a second push rod that passes through the concave template, the top of the second push rod corresponds to the position of the product, and a second spring is provided between the bottom of the second push rod and the lower template.

[0008] Preferably, the upper die seat is provided with a third spring which passes through the fixed plate and is connected to the unloading plate.

[0009] Preferably, the fixed plate is provided with a guide column penetrating the unloading plate, and the concave template is provided with a guide sleeve corresponding to the guide column.

[0010] Preferably, pads are provided between the upper die base and the fixed plate, on the top surface of the unloading plate, and between the lower die base and the concave die plate.

[0011] The beneficial effects of the utility model are as follows: the product is fixed by the unloading plate, and the punch is moved downward to drive the inclined slide block to correct the bent edge of the product. After the correction is completed, the first push rod lifts the inclined slide block under the action of the spring, so that the inclined slide block is away from the product, which is convenient for taking the product from both sides and also convenient for processing subsequent products with high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a top view of the guide block and the inclined sliding block in the utility model.

[0014] Figure 3 It is a front view of the guide block and the inclined sliding block in the utility model.

[0015] Among them: lower die base 10, concave die plate 12, guide block 14, inclined slide block 16, correction surface 17, first ejector pin 18, second ejector pin 20, guide sleeve 22, upper die base 24, fixing plate 26, unloading plate 28, punch 30, guide column 32, spring 34, pad 36, product 38. DETAILED DESCRIPTION

[0016] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0017] like Figures 1 to 3 As shown, a punching die for vertical correction of thick material U-shaped bending of the utility model comprises a lower die seat 10 and an upper die seat 24, a concave die plate 12 is arranged on the lower die seat 10, two grooves for accommodating the bending edges of the product 38 are provided on the concave die plate 12, an inclined slider 16 located on the outside of the product 38 is obliquely and slidably arranged in the two grooves, a first push rod 18 is slidably arranged at the bottom of the inclined slider 16, a first spring 34 is arranged between the first push rod 18 and the lower die seat 10, a fixed plate 26 is arranged at the bottom of the upper die seat 24, a stripping plate 28 is slidably arranged at the bottom of the fixed plate 26, a punch 30 penetrating the stripping plate 28 is arranged in the fixed plate 26, and the punch 30 is used to press down the inclined slider 16 to move the inclined slider 16 along the inclined direction;

[0018] The groove is used to accommodate the bent edge of the product 38. The unloading plate 28 first contacts the product 38 to apply force to the product 38 to fix it, and then the punch 30 applies a downward force to the inclined slider 16 to make the inclined slider 16 slide downward at an angle, and applies force to the bent edge of the product 38 to correct it to 90°. After completion, the first push rod 18 lifts the inclined slider 16 under the action of the spring 34, and the unloading plate 28 is separated from the fixed plate 26 under the action of gravity.

[0019] A guide block 14 is arranged in the groove and is located outside the product 38. A slide groove is provided on the guide block 14 along the inclined direction. A slider that slides in the slide groove is provided on the inclined slider 16.

[0020] The inclined sliding block 16 is limited by the sliding groove on the guide block 14 so that the inclined sliding block 16 slides along the length direction of the sliding groove.

[0021] The concave mold plate 12 is slidably provided with a second push rod 20 penetrating the concave mold plate 12, the top of the second push rod 20 corresponds to the position of the product 38, and a second spring 34 is provided between the bottom of the second push rod 20 and the lower mold plate;

[0022] When the product 38 is corrected, the product 38 is tightly attached to the concave template 12 . By providing the second push rod 20 , the second push rod 20 pushes up the product 38 under the action of the spring 34 , so that the product 38 can be easily removed.

[0023] The upper die holder 24 is provided with a third spring 34 penetrating the fixed plate 26 and connected to the stripper plate 28;

[0024] The third spring 34 makes it easier to separate the fixed plate 26 and the stripper plate 28, that is, the end of the punch 30 is located in the stripper plate 28, which can ensure that the stripper plate 28 contacts the product 38 first during each operation.

[0025] The fixed plate 26 is provided with a guide post 32 penetrating the unloading plate 28 , and the concave plate 12 is provided with a guide sleeve 22 corresponding to the guide post 32 ; the guide post 32 and the guide sleeve 22 are used for positioning.

[0026] Pads 36 are provided between the upper die base 24 and the fixed plate 26 , on the top surface of the stripper plate 28 , and between the lower die base 10 and the concave die plate 12 ; the pads 36 can effectively prevent the workpieces from colliding with each other and causing damage.

[0027] The correction surface of the inclined sliding block 16 facing the product 38 is set with an inclination of 2°, and the correction surface is processed with rounded corners to prevent the inclined sliding block 16 from causing damage to the product 38 when contacting the product 38.

[0028] The punch 30 is fixed in the fixing plate 26 by screws, and a gasket is arranged between the punch 30 and the fixing plate 26; this method facilitates the installation and disassembly of the punch 30, and the amount of push of the punch 30 on the correction block can be adjusted by changing the number of gaskets, thereby realizing the amount of push of the correction block on the bending edge, and then quickly achieving the purpose of adjusting the verticality of the bending edge.

[0029] Working principle: by inserting the two bent edges of the product 38 into the groove, when the upper die seat 24 moves down, the unloading plate 28 first contacts the product 38, presses the product 38 down so that the top of the product 38 is attached to the concave template 12 and fixed, when the upper die seat 24 continues to press down, the fixed plate 26 and the unloading plate 28 slide relative to each other, the unloading plate 28 does not move, the fixed plate 26 drives the punch 30 to move down and exerts a downward force on the inclined slide 16, so that the inclined slide 16 slides obliquely to exert a force on the bent edge of the product 38 to correct it to 90°, after completion, the upper die seat 24 moves up, the product 38 is lifted up by the second push rod 20 for easy picking, and the inclined slide 16 returns to its initial position under the action of the first push rod 18.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A punching die for vertical correction of thick material U-bend, characterized by: It includes a lower die base and an upper die base, the lower die base is provided with a concave die plate, the concave die plate is provided with two grooves for accommodating the bent edges of the product, the two grooves are provided with inclined sliding blocks located on the outside of the product for inclined sliding sliding blocks, a first push rod is slidably provided at the bottom of the inclined sliding block, a first spring is provided between the first push rod and the lower die base, a fixed plate is provided at the bottom of the upper die base, a discharge plate is slidably provided at the bottom of the fixed plate, a punch is provided in the fixed plate that penetrates the discharge plate, and the punch is used to press down the inclined sliding block to move the inclined sliding block along the inclined direction.

2. The punching die for verticality correction of thick material U-bend according to claim 1 is characterized by: A guide block located outside the product is arranged in the groove, a slide groove is provided on the guide block along an inclined direction, and a slider sliding in the slide groove is arranged on the inclined slider.

3. The punching die for verticality correction of thick material U-bend according to claim 1, characterized in that: The concave template is slidably provided with a second push rod penetrating the concave template, the top of the second push rod corresponds to the position of the product, and a second spring is arranged between the bottom of the second push rod and the lower template.

4. The punching die for verticality correction of thick material U-bend according to claim 1 is characterized in that: The upper die seat is provided with a third spring which penetrates through the fixed plate and is connected to the stripping plate.

5. The punching die for verticality correction of thick material U-bend according to claim 1, characterized in that: The fixed plate is provided with a guide column penetrating the unloading plate, and the concave template is provided with a guide sleeve corresponding to the guide column.

6. The punching die for verticality correction of thick material U-bend according to claim 1, characterized in that: Pads are arranged between the upper die seat and the fixed plate, the top surface of the unloading plate, and between the lower die seat and the concave die plate.

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