CN222447798U - Device for easy 90° forming in small progressive dies - Google Patents

Abstract

A device for facilitating 90° forming in a small progressive die, which is composed of three parts: a stripper plate insert, a forming insert and a forming punch; the left angle of the bottom of the stripper plate insert is a negative angle of 90°-α°, and the material is DC53 die steel with vacuum heat treatment HRC58°∽62°; the right angle of the upper part of the forming insert is a negative angle of 90°-α°, and the material is DC53 die steel with vacuum heat treatment HRC58°∽62°; the material of the forming punch is DC53 die steel with vacuum heat treatment HRC58°∽62°. Firstly, the utility model only needs one step for 90° forming, so the mold shape is small, so it is more conducive to production on a small punch press; secondly, because the insert is made into a negative angle of 90°-α°, wherein the angle α is used to offset the lack of material springback, so 90° forming becomes easier, and its processing can be realized without adding steps.

Description

Device easy to form at 90 degrees in small progressive die

Technical Field

The utility model relates to a device easy to form at 90 degrees in a small progressive die, and belongs to the technical field of mechanical and electronic processing.

Background

The small progressive die is primarily defined as a progressive die used under the condition that the pressure of a punching machine is less than 16 tons and the shape of a template is less than 100mm, and has the advantages of multi-process integration, small shape, short opening period, low cost, suitability for strip materials and coil materials and the like, so the small progressive die is widely applied to production, and particularly has prominent use condition in small-batch orders; however, the structure is compact, the product is 90 DEG plus or minus 1 DEG, as shown in figures 1, 2 and 3, the 90 DEG is formed after the 90 DEG is formed, and the rebound sizes of materials are different, so that 90 DEG is different, the phenomenon of over-tolerance on parts is caused, the forming process is also required to be independently added after blanking, compared with the prior large progressive die, the process step can be added in the die for forming, as shown in figure 4, the traditional 45 DEG plus 90 DEG forming structure is required to form 45 DEG (equivalent to pre-compression bending) firstly to bear a part of bending force, then the 90 DEG is directly beaten to 90 DEG through vertical punches and inserts, the defects of firstly, the 90 DEG is required to be subjected to two process steps of 45 DEG and 90 DEG, the occupied die space is increased intangibly, the template size is increased accordingly, the production on a small punch is not facilitated, secondly, in practice, the 90 DEG is very difficult in vertical process step forming, the requirements of softer and thinner materials, the bending radius is small, the material rebound is met, the requirements of the most of the material rebound is not met, the quality is required to be increased, the product is required to be carried out after the blanking process is increased, and the quality is not required to be increased, and the finished products are required to be delivered after the process is carried out, and the process steps are not required to be increased, and finally, and the quality is increased, resulting in an increase in processing costs.

Disclosure of utility model

The utility model aims to solve the technical problems that the processing procedures are reduced and the production cost is reduced, and the processing of the die can be directly realized in a small progressive die.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The device easy to form at 90 degrees in the small progressive die consists of a stripper plate insert, a forming insert and a forming punch;

The left side angle of the bottom of the stripper plate insert is a negative angle of 90-alpha degrees, and the material is DC53 die steel with the temperature of HRC 58-62 degrees through vacuum heat treatment;

The right side angle of the upper part of the forming insert is a negative angle of 90 degrees to alpha degrees, and the material is DC53 die steel with the temperature of HRC58 degrees and 62 degrees through vacuum heat treatment;

The forming punch material is DC53 die steel with a temperature of HRC58 degrees and 62 degrees.

The beneficial effects of adopting above-mentioned technical scheme are:

The utility model firstly needs only one working step for forming 90 degrees, thus the die shape is small, which is more beneficial to production on a small punch press, secondly, because the insert is made into a negative angle of 90 degrees to alpha degrees, wherein the angle alpha is used for counteracting the defect of material rebound, the forming of 90 degrees is easier, the processing of the material can be realized without adding working procedures, and finally, the production cost is reduced after a plurality of unnecessary working procedures are eliminated.

Drawings

Fig. 1 is a schematic diagram of a product structure.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a right side view of fig. 1.

Fig. 4 is a schematic structural diagram of a forming process of a device easy to form at 90 degrees in a small progressive die in the prior art.

Fig. 5 is a schematic diagram showing the structure of the device easy to form at 90 degrees in the small progressive die before forming.

Fig. 6 is a schematic diagram showing the structure of the device easy to form at 90 degrees in the small progressive die before forming.

Fig. 7 is a schematic diagram showing the structure of the device easy to form at 90 deg. in the small progressive die before forming.

In the figure, a 1-stripper insert, a 2-forming insert, a 3-forming punch and a 4-product are shown.

FIG. 8 is a schematic view of the forming process of the device which is easy to form at 90 degrees in the small progressive die.

Detailed Description

For the purpose of promoting an understanding of the principles of the utility model, reference will now be made in detail to the embodiments described herein, including examples, illustrated in the accompanying drawings.

The device easy to form at 90 degrees in the small progressive die consists of a stripper plate insert 1, a forming insert 2 and a forming punch 3;

The stripper plate insert 1 is assembled in a stripper plate cavity, particularly carries out hanging table treatment for preventing falling, plays roles of pressing, angle forming, angle adjustment and the like, bends the material after pressing in advance during processing, avoids poor flatness caused by material deformation, is beneficial to 90-alpha negative angle of the bottom left side of the stripper plate insert 1, is good in product 90-degree forming, adopts DC53 die steel with the advantages of good machining performance, small heat treatment deformation, wear resistance, impact resistance and the like, and carries out vacuum heat treatment HRC 58-62 degrees;

The forming insert 2 is assembled in a cavity of a die plate, plays roles of lifting materials, forming angles, adjusting sizes and the like, and is bent after being tightly attached to the inclined surface of the stripper insert in advance during processing, so that poor flatness caused by material deformation is avoided, the right side angle of the upper part of the forming insert 2 is a negative angle of 90 degrees to alpha degrees, 90 degrees of forming of products is facilitated, DC53 die steel with the advantages of good machining performance, small heat treatment deformation, wear resistance, impact resistance and the like is selected as the material, and HRC58 degrees of air compression is processed by vacuum heat treatment to 62 degrees;

The forming punch 3 is assembled in the cavity of the fixed plate, particularly carries out hanging table treatment for preventing falling, plays roles of angle forming, adjustable size and the like, and adopts DC53 die steel with the advantages of good machining performance, small heat treatment deformation, wear resistance, impact resistance and the like, and carries out vacuum heat treatment on HRC 58-62 degrees.

Due to the presence of α°, the formation of 90 ° in a small progressive die is also made easier.

The application method of the forming device easy to form at 90 degrees in the small progressive die comprises the following steps:

Before forming, namely when the die is arranged on the punch and is in a top dead center state, the components are suspended and are not operated at the moment;

step two, in the forming process, the punch is moved downwards in a point-by-point manner, and the stripper plate insert 1 and the forming insert 2 press materials first to finish the pre-forming work;

And thirdly, after forming, the punch press sliding block continuously descends, the product is formed, meanwhile, the punch press reaches a bottom dead center, and after the completion, the punch press sliding block ascends, and the die is reset by a spring.

The application combines the 45-degree forming step and the 90-degree forming step into one step of 90-alpha-degree, as shown in figure 8, because alpha-degree exists, the forming insert can be easily made into a negative angle to compensate the rebound of raw materials, the value design of alpha-degree can be temporarily corrected according to the actual conditions when the product material, thickness, bending radius and the like are preliminarily determined and then the die is tested, so that the 90-degree forming in a small progressive die is easily solved.

After the structure is successfully applied to small progressive dies of various mounting plates, reeds, connecting plates, supporting plates and other parts, the effect is very remarkable, the consistency and the delicacy of related personnel are obtained, and hundreds of thousands of economic benefits are generated.

Claims (1)

1. The device easy to form at 90 degrees in the small progressive die is characterized by comprising a stripper plate insert (1), a forming insert (2) and a forming punch (3);

The left side angle of the bottom of the stripper plate insert (1) is a negative angle of 90-alpha degrees, and the material is DC53 die steel with the temperature of HRC 58-62 degrees through vacuum heat treatment;

the right side angle of the upper part of the forming insert (2) is a negative angle of 90 degrees to alpha degrees, and the material is DC53 die steel with the temperature of HRC58 degrees to 62 degrees through vacuum heat treatment;

the forming punch (3) is made of DC53 die steel with the temperature of HRC 58-62 degrees through vacuum heat treatment.