CN208643837U - A kind of press-through die - Google Patents

A kind of press-through die Download PDF

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Publication number
CN208643837U
CN208643837U CN201820903450.5U CN201820903450U CN208643837U CN 208643837 U CN208643837 U CN 208643837U CN 201820903450 U CN201820903450 U CN 201820903450U CN 208643837 U CN208643837 U CN 208643837U
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CN
China
Prior art keywords
punch
pin
cavity plate
height
low
Prior art date
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Active
Application number
CN201820903450.5U
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Chinese (zh)
Inventor
李建军
叶方波
万宏春
黄柱权
杨国平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU BOYING PRECISION TOOLING CO Ltd
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SUZHOU BOYING PRECISION TOOLING CO Ltd
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Priority to CN201820903450.5U priority Critical patent/CN208643837U/en
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Publication of CN208643837U publication Critical patent/CN208643837U/en
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Abstract

The utility model relates to a kind of press-through dies, include cavity plate and punch-pin;The height of the punch-pin is gradually decreased from high-end past low side, while forming a lug boss in the low side of punch-pin;The least significant end of the cavity plate is provided with turn-up portion;The turn-up portion is located at the outside of lug boss;Height of the height of the turn-up portion lower than the low side of punch-pin;Drawing material is placed on the punch-pin;The top of punch-pin is arranged in the cavity plate, when cavity plate pushes, carries out drawing to drawing material with punch-pin cooperation, and form flange between the turn-up portion of cavity plate and the upper projecting portion of punch-pin simultaneously;The height of press-through die convex mould described in the utility model is gradually decreased from high-end past low side, be conducive to carry out deep-drawing to drawing material, the low side of punch-pin is provided with lug boss simultaneously, make to inhibit drawing material progress deep-drawing, reduce the speed of deep-drawing, it can occur to avoid product surface unevenness, corrugated situation.

Description

A kind of press-through die
Technical field
The utility model relates to a kind of improvement of press-through die, refer in particular to it is a kind of product surface can be prevented uneven, corrugation Press-through die.
Background technique
In the prior art, as shown in Fig. 1, press-through die includes cavity plate 1 and punch-pin 2;The height of the punch-pin 2 is from one It holds toward the other end and gradually decreases;The least significant end of the punch-pin 2 is provided with flanging portion 4;Drawing material 3 is placed on the punch-pin 2;Institute The top that punch-pin 2 is arranged in cavity plate 1 is stated, when cavity plate 1 pushes, drawing is carried out to drawing material 3 with the cooperation of punch-pin 2, and simultaneously Flanging (not shown) is formed between cavity plate 1 and flanging portion 4.The press-through die of this structure, since the height of punch-pin 2 is from one It holds toward the other end and gradually decreases, when cavity plate 1 pushes, when carrying out drawing to drawing material 3 with the cooperation of punch-pin 2, be easy to cause production Product uneven surface, corrugation.
For this purpose, we have developed it is a kind of product surface can be prevented uneven, corrugated press-through die.
Utility model content
The utility model aim be for overcome the deficiencies in the prior art and provide it is a kind of product surface can be prevented uneven, Corrugated press-through die.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of press-through die, comprising cavity plate and convex Mould;The height of the punch-pin is gradually decreased from high-end past low side, while forming a lug boss in the low side of punch-pin;The cavity plate Least significant end be provided with turn-up portion;The turn-up portion is located at the outside of lug boss;The height of the turn-up portion is low lower than punch-pin The height at end;Drawing material is placed on the punch-pin;The top of punch-pin is arranged in the cavity plate, when cavity plate pushes, with punch-pin Cooperation carries out drawing to drawing material, and forms flange between the turn-up portion of cavity plate and the upper projecting portion of punch-pin simultaneously.
Preferably, the height of the lug boss is higher than the high-end height of punch-pin.
Preferably, height of the height of the turn-up portion lower than the low side of punch-pin.
Due to the application of the above technical scheme, the utility model has the advantage that compared with prior art
The height of press-through die convex mould described in the utility model is gradually decreased from high-end past low side, is conducive to drawing Prolong material and carry out deep-drawing, while the low side of punch-pin is provided with lug boss, makes to inhibit drawing material progress deep-drawing, drop The speed of low deep-drawing can occur to avoid product surface unevenness, corrugated situation.
Detailed description of the invention
Technical solutions of the utility model are described further with reference to the accompanying drawing:
Attached drawing 1 is the schematic diagram of the press-through die of the prior art;
Attached drawing 2 is the schematic diagram of press-through die described in the utility model;
Wherein: 1, cavity plate;2, punch-pin;3, drawing material;4, flanging portion;11, cavity plate;12, punch-pin;13, turn-up portion;14, Lug boss.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the utility model is described in further detail.
Attached drawing 2 is press-through die described in the utility model, includes cavity plate 11 and punch-pin 12;The height of the punch-pin 12 It is gradually decreased from high-end past low side, while forming a lug boss 14 in the low side of punch-pin 12;The height of the lug boss 14 is high In the high-end height of punch-pin 12.
The least significant end of the cavity plate 11 is provided with turn-up portion 13;The turn-up portion 13 is located at the outside of lug boss 14.It is described Height of the height of turn-up portion 13 lower than the low side of punch-pin 12.
Drawing material 3 is placed on the punch-pin 12;The top of punch-pin 12 is arranged in the cavity plate 11, when cavity plate 11 pushes When, drawing is carried out to drawing material 3 with the cooperation of punch-pin 12, and the lug boss in the turn-up portion 13 of cavity plate 11 and punch-pin 12 simultaneously Flange (not shown) is formed between 14.
When work, since the height of the punch-pin 12 is gradually decreased from high-end past low side, be conducive to carry out drawing material 3 Deep-drawing, while the low side of punch-pin 12 is provided with lug boss 14, makes to inhibit the progress deep-drawing of drawing material 3, reduce deep The speed of drawing can occur to avoid product surface unevenness, corrugated situation.
Due to the application of the above technical scheme, the utility model has the advantage that compared with prior art
The height of press-through die convex mould 12 described in the utility model is gradually decreased from high-end past low side, is conducive to pair Drawing material 3 carries out deep-drawing, while the low side of punch-pin 12 is provided with lug boss 14, make to carry out drawing material 3 deep-drawing into Row inhibits, and reduces the speed of deep-drawing, can occur to avoid product surface unevenness, corrugated situation.
The above is only the specific application examples of the utility model, do not constitute any limit to the protection scope of the utility model System.Any technical scheme formed by adopting equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it It is interior.

Claims (2)

1. a kind of press-through die includes cavity plate and punch-pin;It is characterized by: the height of the punch-pin from high-end past low side gradually It reduces, while forming a lug boss in the low side of punch-pin;The least significant end of the cavity plate is provided with turn-up portion;The flange position In the outside of lug boss;Height of the height of the turn-up portion lower than the low side of punch-pin;Drawing material is placed on the punch-pin;Institute The top that punch-pin is arranged in cavity plate is stated, when cavity plate pushes, drawing is carried out to drawing material with punch-pin cooperation, and simultaneously in cavity plate Turn-up portion and punch-pin upper projecting portion between form flange.
2. press-through die according to claim 1, it is characterised in that: the height of the lug boss is higher than the high-end of punch-pin Height.
CN201820903450.5U 2018-06-12 2018-06-12 A kind of press-through die Active CN208643837U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820903450.5U CN208643837U (en) 2018-06-12 2018-06-12 A kind of press-through die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820903450.5U CN208643837U (en) 2018-06-12 2018-06-12 A kind of press-through die

Publications (1)

Publication Number Publication Date
CN208643837U true CN208643837U (en) 2019-03-26

Family

ID=65781075

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820903450.5U Active CN208643837U (en) 2018-06-12 2018-06-12 A kind of press-through die

Country Status (1)

Country Link
CN (1) CN208643837U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110814133A (en) * 2019-10-18 2020-02-21 芜湖创挚汽车科技有限公司 Machining method for preventing flanging and wrinkling of plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110814133A (en) * 2019-10-18 2020-02-21 芜湖创挚汽车科技有限公司 Machining method for preventing flanging and wrinkling of plate

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