Two-way fine stamping die and two-way fine stamping part processing method

A technology of fine blanking and dies, which is applied in the field of two-way fine blanking dies and two-way fine blanking parts processing, can solve the problems of increasing processing procedures and process difficulties, increasing costs and quality risks, and burrs on the cross-section, so as to achieve convenient promotion and implementation, structure Simple, good quality results

Active Publication Date: 2012-12-05
河南星光机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Parts produced by using existing fine blanking dies and processing methods are prone to local fractures and tears on the side section corresponding to the blanking slump surface, and burrs inevitably appear on the section, which increases the subsequent processing Difficulty in process and process increases cost and quality risk

Method used

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  • Two-way fine stamping die and two-way fine stamping part processing method
  • Two-way fine stamping die and two-way fine stamping part processing method
  • Two-way fine stamping die and two-way fine stamping part processing method

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Embodiment 1

[0020] Embodiment one: see figure 1 , Figure 5 . The two-way fine blanking die of the present invention comprises a patrix and a lower die, and the upper and lower dies all adopt a structure in which the die includes a punch, the patrix includes an upper punch 4, an upper die 5, and the lower die includes a lower punch 8. The lower die 6; the upper die 4 is installed in the upper die cavity, the upper die is installed on the upper die base 3, the lower die 8 is installed in the lower die cavity, and the lower die 6 passes through the die The fixed plate 7 is fixed on the lower mold base 10, and the upper punch and the lower punch rely on the pressure transmitted by the fine blanking press to slide in the die. The upper die 5 is connected with the fine blanking press through the upper die ejector pin 2 .

Embodiment 2

[0021] Embodiment two: see figure 1 , Figure 5 . In the two-way fine-blanking die described in this embodiment, the upper punch 4 is connected to the fine-blanking press through the upper punch ejector 1; the lower punch 8 is connected to the fine-blanking press through the lower punch ejector 11, and the lower punch A top block 9 is arranged between the push rod 11 and the fine blanking press.

[0022] For the two-way fine blanking dies of the foregoing embodiments, ring gears are provided on the stamping end faces of the upper die and the lower die.

Embodiment 3

[0023] Embodiment three: see Figure 1 ~ Figure 4 , Figure 5 . This embodiment is a two-way fine-blanking part processing method using the aforementioned two-way fine-blanking die. The process of blanking the material to complete the part production is as follows:

[0024] The first step: the lower die goes up, and the upper die, the lower die, the upper punch and the lower punch with the ring gear compress the material;

[0025] Step 2: When the material is in a compacted state, the fine blanking press acts on the lower punch through the ejector pin of the lower punch,

[0026] The lower punch continues to go up to 1 / 3~1 / 2 thickness of the material;

[0027] Step 3: The fine blanking press acts on the upper punch through the ejector pin of the upper punch, and the upper punch goes down, and the material is punched under the action of the pressing force, blanking force and counter pressure until the material is separated, realizing two Second blanking, complete two-way fin...

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PUM

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Abstract

The invention relates to a fine stamping die and a two-way fine stamping part processing method. The two-way fine stamping die is characterized in that an upper die and a lower die respectively adopt a structure in which a concave die contains a convex die, an upper convex die is arranged in a cavity of an upper concave die, the upper concave die is arranged on an upper die base, a lower convex die is arranged in a cavity of a lower concave die, the lower concave die is fixed on a lower die base through a concave die fixing plate, and the upper convex die and the lower convex die slide in the concave die through the pressure transmitted by a fine stamping pressure machine. The two-way fine stamping part processing method comprises the following steps that: the lower die moves upwards, the upper die and the lower die press a material so that the material is in a pressed state, and the lower convex die continuously moves upwards to the position which is 1/3-1/2 of the thickness of the material; the upper convex die moves downwards, and the material is chopped under the material pressing force, chopping force and reserve pressure until the material is separated; and the lower die moves downwards, the upper die and the lower die are separated, and the lower convex die ejects a part from the lower concave die. According to the invention, the finely-stamped part product obtained by the two-way fine stamping part processing method is good in chopping quality, and can be directly used for mechanical assembly, so that the production efficiency can be greatly improved.

Description

technical field [0001] The invention relates to a processing method for fine blanking parts, in particular to a bidirectional fine blanking die and a processing method for bidirectional fine blanking parts. Background technique [0002] Fine blanking is the abbreviation of fine blanking (stamping), which refers to blanking parts with high tolerance level and good cross-section quality directly from the sheet metal. It is widely used in national defense, instrumentation, automobile, electronics and other industries, and can replace casting , forging, and cutting parts. Manufactured by fine blanking technology, the productivity of blanking parts can be greatly improved and the production cost can be reduced. Existing fine-blanking processing methods are mainly the fine-blanking die used by the three-action press and the hydraulic fine-blanking die used on the hydraulic press, all of which are single-directional fine-blanking technology. [0003] Parts produced by using exist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D28/14
Inventor 马皓生姚万锋归超王占锋
Owner 河南星光机械制造有限公司
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