CN105921644A - Fine-blanking formation method for reducing corner collapse size of fine-stamped part by using progressive die - Google Patents
Fine-blanking formation method for reducing corner collapse size of fine-stamped part by using progressive die Download PDFInfo
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- CN105921644A CN105921644A CN201610268986.XA CN201610268986A CN105921644A CN 105921644 A CN105921644 A CN 105921644A CN 201610268986 A CN201610268986 A CN 201610268986A CN 105921644 A CN105921644 A CN 105921644A
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- Prior art keywords
- punch
- die
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- blanking
- crowded
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/28—Making other particular articles wheels or the like gear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention belongs to the technical field of fine-blanking formation of a plate material and particularly relates to a fine-blanking formation method for reducing the size of a collapsed corner of a fine-blanked part by using a progressive die. The fine-blanking formation method for reducing the size of the collapsed corner of the fine-stamped part by using the progressive die is characterized by comprising the following steps: (1) preparing the progressive die; (2) blanking the outer contour of the position of the collapsed corner of the part and keeping a certain reservation quantity; (3) removing the reservation quantity from the burr side of the part by cutting in a cut-extrusion way; (4) finishing blanking and dropping. Compared with a traditional plate material fine-blanking method, the method disclosed by the invention has the advantages of effectively reducing the size of the collapsed corner, improving the quality of the part, preventing application of an auxiliary milling step, lowering the production cost and improving the efficiency.
Description
Technical field
The invention belongs to Used for Sheet Stamping forming technique field, be specifically related to a kind of use progressive die to reduce fine part to collapse the essence of angle square cun
Punching formation method.
Background technology
Fine is the metal forming technique of a kind of advanced person, can replace the machining of flat part, have high-quality, efficiently,
The feature of low consumption.Qualified fine blanking part can directly use without follow-up operation.
The cut surface character of fine part includes collapse angle, euphotic belt and burr.Angle of collapsing is the intrinsic phenomenon of common fine, and it is that plate enters
Material generation plastic deformation near cutting edge of die and flowing when entering die and produce, it is the weight evaluating fine blanking part quality
Wanting standard, the measurement index at angle of collapsing has collapse angle height and width.
In the fine-punching formation technique of plate, the angular defect of collapsing at the evagination profile such as part wedge angle is obvious.The appearance at angle of collapsing makes part
Work area reduce and reduce the serviceability of part.Such as gear part, angle phenomenon of collapsing clearly, thus drops
Low gear effectively use thickness.The gear such as gone out for the Used for Sheet Stamping using thickness to be 5mm, the angle height that collapses is
1mm, then it is 4mm that gear effectively carries thickness.If effectively carrying thickness must reach 5mm, need with 6mm even
Thicker plate carries out fine.
The angle problem that solves at present to collapse generally uses the removal of aided process such as Milling Process to collapse angle, adds production cost, reduces enterprise
Industry benefit.
Summary of the invention
It is an object of the invention to provide and a kind of use progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun.
For achieving the above object, the technical solution adopted in the present invention is: a kind of use progressive die to reduce fine part to collapse angle square cun
Fine-punching formation method, it is characterised in that it comprises the steps:
1) progressive die is prepared；
2) it is punched out part to collapse the outline of Angle Position retain certain pre-allowance；
3) cut crowded mode from the use of the burr side of part and excise pre-allowance；
4) stamping and blanking of part is completed.
Step 1) described in progressive die include upper bolster 1, push rod 2, holding pad 3, punch extermal form punch 4, punch extermal form die 5,
Cut crowded punch 7, die shoe 8, blanking die 9, blanking punch 10, cut crowded die 11；Holding pad 3 is positioned at upper bolster 1
Lower section, the upper end of push rod 2 is connected through upper bolster 1 with retractor device, and the lower end of push rod 2 is fixed with holding pad 3；Punch extermal form
Punch 4, blanking punch 10 are separately mounted on upper bolster 1, and the lower end of punch extermal form punch 4, the lower end of blanking punch 10 are divided
Not Chuan Guo holding pad 3, cut crowded die 11 and be located on holding pad 3, cut crowded die 11 and be positioned at punch extermal form punch 4 and blanking punch
Between 10；The upper end cutting crowded punch 7 passes die shoe 8, and the lower end cutting crowded punch 7 is connected with retractor device, cuts crowded punch 7
It is positioned at the underface cutting crowded die 11；Punch extermal form die 5, blanking die 9 are respectively provided on die shoe 8, punch extermal form die 5
Being positioned at the underface of punch extermal form punch 4, blanking die 9 is positioned at the underface of blanking punch 10.
Described step 2) particularly as follows: put between holding pad 3 and die shoe 8 by plate 6, holding pad 3 compresses plate 6,
Punch extermal form punch 4 is descending, is punched out part and collapses the outline of Angle Position retain certain pre-allowance, i.e. the two of this part head
At individual half fillet, pre-allowance is 0.2mm.
Described step 3) particularly as follows: plate 6 proceeds to next station, holding pad 3 compresses plate 6, cuts crowded punch 7 up,
The pre-allowance of the Angle Position that collapses is cut from the burr side of part.
Described step 4) particularly as follows: plate 6 continues to proceed to next station, holding pad 3 compresses plate 6, blanking punch 10
Descending, complete the stamping and blanking of whole part, obtain required part.
The invention has the beneficial effects as follows: compared with traditional Used for Sheet Stamping method, effectively reduce the size at angle of collapsing, improve
The quality of part, it is to avoid the use of aided process milling, reduces production cost, improves benefit.
Accompanying drawing explanation
Fig. 1 is a kind of to use progressive die to reduce fine part to collapse the work step schematic diagram of fine-punching formation method of angle square cun.
Label in Fig. 1: 1-upper bolster, 2-push rod, 3-holding pad, 4-punch extermal form punch, 5-punch extermal form die, 6-plate,
7-cuts crowded punch, 8-die shoe, 9-blanking die, 10-blanking punch, and 11-cuts crowded die.
Fig. 2 is the fine blanking part schematic diagram of application the method, and the unit in Fig. 2 is mm.
Detailed description of the invention
The material that part uses is AISI304, and thickness is 5mm, is the outline being easily formed angle of collapsing at head half fillet, fillet
Radius is 0.2mm.Part cross section quality requires euphotic belt more than 90%, and the angle square cun that collapses is less than 0.5mm.
A kind of using progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun, it comprises the steps:
1) progressive die is prepared；
2) it is punched out part to collapse the outline of Angle Position retain certain pre-allowance；
Described step 2) particularly as follows: put between holding pad 3 and die shoe 8 by plate 6, holding pad 3 compresses plate 6,
Punch extermal form punch 4 is descending, is punched out part and collapses the outline of Angle Position retain certain pre-allowance, i.e. the two of this part head
At individual half fillet (as shown in the A in Fig. 1, i.e. first station), pre-allowance is 0.2mm；
3) cut crowded mode from the use of the burr side of part and excise pre-allowance (and squeezing the size at little angle of collapsing)；
Described step 3) particularly as follows: plate 6 proceeds to next station, holding pad 3 compresses plate 6, cuts crowded punch 7 up,
The pre-allowance of the Angle Position that collapses { reserved metal (as shown in the B Fig. 1, i.e. second station) } is cut from the burr side of part,
Under cutting crowded comprehensive function, the angle square cun that collapses of part diminishes；
4) stamping and blanking of part is completed.
Described step 4) particularly as follows: plate 6 continues to proceed to next station, holding pad 3 compresses plate 6, blanking punch 10
Descending, complete the stamping and blanking (as shown in the C in Fig. 1, i.e. the 3rd station) of whole part, obtain required part (i.e.
Fine blanking part).
The euphotic belt ratio of final formation of parts is more than 95%, and angle of collapsing is smaller in size than 0.5mm, has reached the technology requirement of part,
Demonstrate the effectiveness of fine-punching formation method.
Step 1) described in progressive die include upper bolster 1, push rod 2, holding pad 3, punch extermal form punch 4, punch extermal form die 5,
Cut crowded punch 7, die shoe 8, blanking die 9, blanking punch 10, cut crowded die 11；Holding pad 3 is positioned at upper bolster 1
Lower section, the upper end of push rod 2 is connected with the first retractor device (such as: hydraulic means) through upper bolster 1, the lower end of push rod 2 and
Holding pad 3 fixing (the telescopic band dynamic pressure flitch 3 of push rod 2 moves up and down, and holding pad 3 moves down pushes down plate 6)；Punch extermal form is convex
Mould 4, blanking punch 10 are separately mounted on upper bolster 1, the lower end of punch extermal form punch 4, the lower end difference of blanking punch 10
Through holding pad 3 (being positioned at the top of die shoe 8), cut crowded die 11 and be located on holding pad 3, cut crowded die 11 and be positioned at outside punching
Between shape punch 4 and blanking punch 10 (punch extermal form punch 4, cut crowded die 11, blanking punch 10 arrange from left to right)；
The upper end cutting crowded punch 7 passes die shoe 8 (cutting crowded punch 7 can move up and down), cuts lower end and the second flexible dress of crowded punch 7
Put (such as: hydraulic means) to be connected, cut crowded punch 7 and be positioned at the underface cutting crowded die 11；Punch extermal form die 5, blanking die
9 are respectively provided on die shoe 8, and punch extermal form die 5 is positioned at the underface of punch extermal form punch 4, and it is convex that blanking die 9 is positioned at blanking
The underface of mould 10.
Claims (6)
1. one kind uses progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun, it is characterised in that it comprises the steps:
1) progressive die is prepared；
2) it is punched out part to collapse the outline of Angle Position retain pre-allowance；
3) cut crowded mode from the use of the burr side of part and excise pre-allowance；
4) stamping and blanking of part is completed.
The most according to claim 1 a kind of use progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun, it is characterised in that: the progressive die described in step 1) includes upper bolster (1), push rod (2), holding pad (3), punch extermal form punch (4), punch extermal form die (5), cuts crowded punch (7), die shoe (8), blanking die (9), blanking punch (10), cuts crowded die (11)；Holding pad (3) is positioned at the lower section of upper bolster (1), and the upper end of push rod (2) is connected through upper bolster (1) with retractor device, and the lower end of push rod (2) is fixed with holding pad (3)；Punch extermal form punch (4), blanking punch (10) are separately mounted on upper bolster (1), the lower end of punch extermal form punch (4), the lower end of blanking punch (10) are each passed through holding pad (3), cut crowded die (11) to be located on holding pad (3), cut crowded die (11) and be positioned between punch extermal form punch (4) and blanking punch (10)；The upper end cutting crowded punch (7) passes die shoe (8), and the lower end cutting crowded punch (7) is connected with retractor device, cuts crowded punch (7) and is positioned at the underface cutting crowded die (11)；Punch extermal form die (5), blanking die (9) are respectively provided on die shoe (8), and punch extermal form die (5) is positioned at the underface of punch extermal form punch (4), and blanking die (9) is positioned at the underface of blanking punch (10).
The most according to claim 1 a kind of use progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun, it is characterized in that: described step 2) particularly as follows: plate (6) is put between holding pad (3) and die shoe (8), holding pad (3) compresses plate (6), punch extermal form punch (4) is descending, is punched out part and collapses the outline of Angle Position retain certain pre-allowance.
The most according to claim 3 a kind of use progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun, it is characterised in that: described pre-allowance is 0.2mm.
The most according to claim 1 a kind of use progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun, it is characterized in that: described step 3) is particularly as follows: plate (6) proceeds to next station, holding pad (3) compresses plate (6), cut crowded punch (7) up, cut the pre-allowance of the Angle Position that collapses from the burr side of part.
The most according to claim 1 a kind of use progressive die to reduce fine part to collapse the fine-punching formation method of angle square cun, it is characterized in that: described step 4) is particularly as follows: plate (6) continues to proceed to next station, holding pad (3) compresses plate (6), blanking punch (10) is descending, completes the stamping and blanking of whole part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268986.XA CN105921644A (en) | 2016-04-27 | 2016-04-27 | Fine-blanking formation method for reducing corner collapse size of fine-stamped part by using progressive die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268986.XA CN105921644A (en) | 2016-04-27 | 2016-04-27 | Fine-blanking formation method for reducing corner collapse size of fine-stamped part by using progressive die |
Publications (1)
| Publication Number | Publication Date |
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| CN105921644A true CN105921644A (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610268986.XA Pending CN105921644A (en) | 2016-04-27 | 2016-04-27 | Fine-blanking formation method for reducing corner collapse size of fine-stamped part by using progressive die |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277460A (en) * | 2018-11-02 | 2019-01-29 | 苏州铭峰精密机械有限公司 | Small size thickness material stamping continuous die and Sheet Metal Forming Technology |
| CN111618159A (en) * | 2020-06-09 | 2020-09-04 | 成都宏明双新科技股份有限公司 | Process for reducing corner collapse of circular ring product |
| CN113560418A (en) * | 2021-07-26 | 2021-10-29 | 苏州东风精冲工程有限公司 | Small-collapse-angle fine blanking forming method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69200391T2 (en) * | 1991-07-20 | 1995-01-05 | Lawson Mardon Sutton Ltd | Sheet metal forming and process. |
| CN202715717U (en) * | 2012-07-17 | 2013-02-06 | 武汉中航精冲技术有限公司 | Multi-station gear-shaving fine punching mold for multi-gear punching piece |
| CN103909137A (en) * | 2013-01-08 | 2014-07-09 | 江苏高歌机电有限公司 | Burr-free machining die |
| CN104338823A (en) * | 2013-08-07 | 2015-02-11 | 江苏博俊工业科技股份有限公司 | Punching progressive die for locally and finely punching tooth-shaped products on thick steel plate |
| CN204194583U (en) * | 2014-10-17 | 2015-03-11 | 武汉中航精冲技术有限公司 | Shape fine blanking die is protected for thin-walled stamping parts |
-
2016
- 2016-04-27 CN CN201610268986.XA patent/CN105921644A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69200391T2 (en) * | 1991-07-20 | 1995-01-05 | Lawson Mardon Sutton Ltd | Sheet metal forming and process. |
| CN202715717U (en) * | 2012-07-17 | 2013-02-06 | 武汉中航精冲技术有限公司 | Multi-station gear-shaving fine punching mold for multi-gear punching piece |
| CN103909137A (en) * | 2013-01-08 | 2014-07-09 | 江苏高歌机电有限公司 | Burr-free machining die |
| CN104338823A (en) * | 2013-08-07 | 2015-02-11 | 江苏博俊工业科技股份有限公司 | Punching progressive die for locally and finely punching tooth-shaped products on thick steel plate |
| CN204194583U (en) * | 2014-10-17 | 2015-03-11 | 武汉中航精冲技术有限公司 | Shape fine blanking die is protected for thin-walled stamping parts |
Non-Patent Citations (1)
| Title |
|---|
| 肖祥芷: "《中国模具工程大典 第4卷 冲压模具设计》", 31 March 2007, 电子工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277460A (en) * | 2018-11-02 | 2019-01-29 | 苏州铭峰精密机械有限公司 | Small size thickness material stamping continuous die and Sheet Metal Forming Technology |
| CN111618159A (en) * | 2020-06-09 | 2020-09-04 | 成都宏明双新科技股份有限公司 | Process for reducing corner collapse of circular ring product |
| CN113560418A (en) * | 2021-07-26 | 2021-10-29 | 苏州东风精冲工程有限公司 | Small-collapse-angle fine blanking forming method |
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Application publication date: 20160907 |
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