CN201179541Y - Stage-mould feeding precision positioning apparatus employing guide hole two-stage eyelet work - Google Patents
Stage-mould feeding precision positioning apparatus employing guide hole two-stage eyelet work Download PDFInfo
- Publication number
- CN201179541Y CN201179541Y CNU2008200745654U CN200820074565U CN201179541Y CN 201179541 Y CN201179541 Y CN 201179541Y CN U2008200745654 U CNU2008200745654 U CN U2008200745654U CN 200820074565 U CN200820074565 U CN 200820074565U CN 201179541 Y CN201179541 Y CN 201179541Y
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- punching hole
- punching
- die
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Abstract
The utility model relates to a progressive die material feeding accurate locating device which adopts a guide hole double stage punching hole. The progressive die material feeding accurate locating device comprises a pad plate, a fixation plate, a guide pin, a discharging plate and a punching hole part. The punching hole part adopts a guide hole double stage punching hole structure, that is, the punching hole part is formed by two parts which are a pre-punching hole and a precision punching hole. The pre-punching hole comprises a pre-punching hole convex die and a pre-punching hole concave die, the precision punching hole comprises a precision punching hole convex die and a precision punching hole concave die, the pre-punching hole convex die, the precision punching hole convex die and the guide pin are all fixed on the fixation plate, and step distances among the pre-punching hole convex die, the precision punching hole convex die and the guide pin are equal. The progressive die material feeding accurate locating device has the advantages of high progressive die material feeding locating accuracy, long service life of the guide pin, simple structure and easy implementation, and is widely applied to a progressive die of a large accurate automobile part which adopts cold punching forming.
Description
(1) technical field
The utility model relates to a kind of progressive die locating unit, particularly a kind of progressive die feeding precision positioning device that adopts the twin-stage punching of correcting hole.
(2) background technology
" progressive die " is called " progressive die " or " progressive die " again, is a kind of mould the most complicated in the cold stamping shaped mould of sheet metal, and it is in the one stroke of forcing press, on the diverse location of mould, finish two above stamping procedures.Progressive die will seek out high-precision product, just must guarantee the feeding positioning accuracy of metal blank in progressive die.The feeding positioning accuracy is high more, and the precision of product is high more.At present, the locating unit in the progressive die all adopts correcting hole single-stage punching structure, and promptly metal blank during feeding, is cooperated by piercing punch and punching concave die earlier in progressive die, goes out the correcting hole on metal blank, and metal blank is sent a step pitch forward to then; After sending to, in the correcting hole on the pilot pin insertion metal blank, with the metal blank correcting, so that eliminate the site error that produces when progressive die is sent metal blank to.Adopt the progressive die locating unit of above-mentioned correcting hole single-stage punching, its feeding positioning accuracy depends mainly on the precision in correcting hole, but the correcting hole precision of common punching mode can only reach IT8～IT9 level, can not satisfy the needs of high accuracy product far away; When adopting the single-stage punching of correcting hole in addition, the correcting hole surface of going out on metal blank is of poor quality, its section can produce burr and rough shear fracture, when cooperating, can scratch the correcting surface of pilot pin with pilot pin, not only reduce the correcting precision, and can influence the service life of pilot pin greatly.
(3) utility model content
The purpose of this utility model is at above-mentioned existing problems, and the progressive die feeding precision positioning device of the employing correcting hole twin-stage punching of a kind of feeding positioning accuracy height, pilot pin long service life, simple in structure and easy enforcement is provided.
The technical solution of the utility model
A kind of progressive die feeding precision positioning device that adopts the twin-stage punching of correcting hole, partly form by backing plate, fixed head, pilot pin, stripper and punching, it is characterized in that: correcting hole twin-stage punching structure is partly adopted in punching, be that the punching part is made of pre-punched hole and smart punching two parts, pre-punched hole comprises pre-punched hole punch and pre-punched hole die, smart punching comprises smart piercing punch and smart punching concave die, pre-punched hole punch, smart piercing punch and pilot pin all are fixed on the fixed head, and pre-punched hole punch, smart piercing punch are identical with pilot pin step pitch each other.
Pre-punched hole partly is to go out on metal blank in advance towards the correcting hole by the mating reaction of pre-punched hole punch and pre-punched hole die, and in advance towards the diameter in correcting hole less than designed correcting hole; After metal blank was sent a step pitch forward to, smart punching part was then dashed correction by the mating reaction of smart piercing punch and smart punching concave die to the essence of carrying out towards the correcting hole in advance on the metal blank; After metal blank was sent a step pitch forward again to, the essence on the pilot pin insertion metal blank was in the correcting hole, with the metal blank correcting.
The utility model has the advantages that 1) improved the machining accuracy in correcting hole: in locating unit, be provided with smart piercing punch and smart punching concave die, by it to dashing towards the essence in correcting hole in advance, make the precision in correcting hole bring up to IT6～IT7 level, can improve feeding positioning accuracy 50% by IT8～IT9 level; 2) reduced the fit clearance of correcting hole and pilot pin: by smart piercing punch and smart punching concave die to 1 carrying out essence and dash and revise towards the correcting hole in advance, correcting hole surface quality is improved, the fit clearance of correcting hole and pilot pin can reduce more than 1/2, has further improved the feeding positioning accuracy; 3) improved service life of pilot pin: wash away except burr on the metal blank section and rough shear fracture by essence, when correcting, avoided damage like this pilot pin correcting surface, thus the service life of having improved pilot pin.
(4) description of drawings
Fig. 1 is for adopting the progressive die feeding precision positioning device structural representation of correcting hole twin-stage punching.
Among the figure: 1. pre-punched hole punch 2. backing plates 3. fixed heads 4. smart piercing punch 5. pilot pins 6. stripper 7. essences towards the correcting hole 8. smart punching concave die 9. metal blanks 10. pre-punched hole dies 11. in advance towards the correcting hole
(5) specific embodiment
Embodiment:
A kind of progressive die feeding precision positioning device that adopts the twin-stage punching of correcting hole, partly form by backing plate 2, fixed head 3, pilot pin 5, stripper 6 and punching, correcting hole twin-stage punching structure is partly adopted in punching, be that the punching part is made of pre-punched hole and smart punching two parts, pre-punched hole comprises pre-punched hole punch 1 and pre-punched hole die 10, smart punching comprises smart piercing punch 4 and smart punching concave die 8, pre-punched hole punch 1, smart piercing punch 4 and pilot pin 5 all are fixed on the fixed head 3, and pre-punched hole punch 1, smart piercing punch 4 are identical with pilot pin 5 step pitch L each other.The pre-punched hole mould partly is to go out on metal blank 9 in advance towards correcting hole 11 by the mating reaction of pre-punched hole punch 1 and pre-punched hole die 10, and in advance towards the diameter in correcting hole 11 than the designed little 0.1～0.5mm in correcting hole; After metal blank 9 is sent a step pitch L forward to, smart perforating die part then the mating reaction by smart piercing punch 4 and smart punching concave die 10 to 11 carrying out essence and dash correction towards the correcting hole in advance on the metal blank 9; After metal blank 9 was sent a step pitch L forward again to, the essence on the pilot pin 5 insertion metal blanks 9 was in correcting hole 7, with metal blank 9 correctings.This device is used in large-scale precision auto parts progressive die, and testing result shows that the metal blank positioning accuracy can improve 50%.
Claims (1)
1. progressive die feeding precision positioning device that adopts the twin-stage punching of correcting hole, partly form by backing plate, fixed head, pilot pin, stripper and punching, it is characterized in that: correcting hole twin-stage punching structure is partly adopted in punching, be that the punching part is made of pre-punched hole and smart punching two parts, pre-punched hole comprises pre-punched hole punch and pre-punched hole die, smart punching comprises smart piercing punch and smart punching concave die, pre-punched hole punch, smart piercing punch and pilot pin all are fixed on the fixed head, and pre-punched hole punch, smart piercing punch are identical with pilot pin step pitch each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200745654U CN201179541Y (en) | 2008-04-29 | 2008-04-29 | Stage-mould feeding precision positioning apparatus employing guide hole two-stage eyelet work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200745654U CN201179541Y (en) | 2008-04-29 | 2008-04-29 | Stage-mould feeding precision positioning apparatus employing guide hole two-stage eyelet work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179541Y true CN201179541Y (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200745654U Expired - Fee Related CN201179541Y (en) | 2008-04-29 | 2008-04-29 | Stage-mould feeding precision positioning apparatus employing guide hole two-stage eyelet work |
Country Status (1)
| Country | Link |
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| CN (1) | CN201179541Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844381A (en) * | 2010-05-11 | 2010-09-29 | 天津理工大学 | Anti-rotation positioning device used for rows of mold cores or punch heads |
| CN102284558A (en) * | 2011-08-01 | 2011-12-21 | 天津市津兆机电开发有限公司 | Step pitch detection method and device for punching continuous die |
| CN102327957A (en) * | 2011-06-23 | 2012-01-25 | 苏州旭创精密模具有限公司 | Stamping method for producing precise HDMI (high definition multimedia interface) terminals |
| CN102950190A (en) * | 2011-08-25 | 2013-03-06 | 江苏银河电子股份有限公司 | Production method of sheet metal parts |
| CN107186050A (en) * | 2017-06-19 | 2017-09-22 | 菲斯达排放控制装置（苏州）有限公司 | The method of stainless steel thickness material part fine blanking hole |
-
2008
- 2008-04-29 CN CNU2008200745654U patent/CN201179541Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844381A (en) * | 2010-05-11 | 2010-09-29 | 天津理工大学 | Anti-rotation positioning device used for rows of mold cores or punch heads |
| CN102327957A (en) * | 2011-06-23 | 2012-01-25 | 苏州旭创精密模具有限公司 | Stamping method for producing precise HDMI (high definition multimedia interface) terminals |
| CN102284558A (en) * | 2011-08-01 | 2011-12-21 | 天津市津兆机电开发有限公司 | Step pitch detection method and device for punching continuous die |
| CN102284558B (en) * | 2011-08-01 | 2013-06-12 | 天津市津兆机电开发有限公司 | Step pitch detection method and device for punching continuous die |
| CN102950190A (en) * | 2011-08-25 | 2013-03-06 | 江苏银河电子股份有限公司 | Production method of sheet metal parts |
| CN107186050A (en) * | 2017-06-19 | 2017-09-22 | 菲斯达排放控制装置（苏州）有限公司 | The method of stainless steel thickness material part fine blanking hole |
| CN107186050B (en) * | 2017-06-19 | 2019-06-11 | 菲斯达排放控制装置（苏州）有限公司 | The method of stainless steel thickness material part fine blanking hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20120429 |