CN204974994U - Novel chamfer of punching a hole fine blanking mould - Google Patents
Novel chamfer of punching a hole fine blanking mould Download PDFInfo
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- CN204974994U CN204974994U CN201520587900.0U CN201520587900U CN204974994U CN 204974994 U CN204974994 U CN 204974994U CN 201520587900 U CN201520587900 U CN 201520587900U CN 204974994 U CN204974994 U CN 204974994U
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Abstract
The utility model relates to a novel chamfer of punching a hole fine blanking mould is fixed with chamfer drift and interstitial hole drift on the lower bolster of this mould, the interstitial hole drift is just to the punch -die, the die surface of the outstanding die in top of chamfer drift. Because the chamfer orientation of part and punching press opposite direction, so the chamfer drift is fixed on the lower bolster, at the compound die in -process, chamfer drift and whole lower mould move together, and the billot is formed required chamfer by the part extrusion of the outstanding die surface in chamfer drift top, and the chamfer back that takes shape is gone out the round hole at a back drift of interstitial hole station the for and is accomplished promptly and punch a hole and the taking shape of chamfer, owing to punch a hole after the first chamfer, so the position of the round hole of processing and size precision height.
Description
Technical field
The utility model belongs to stamping Die Design field, relates to a kind of Novel punching chamfering fine blanking die, for the part that chamfering direction is contrary with pressing direction.
Background technology
Diel is equipment material being carried out to pressure processing use, its operation principle be generally by mould drive under the effect of punching press the folding face of upper die and lower die by it between raw material carry out cutting, punching, the shaping such as stretching, form stamping parts.Fine blanking die is that current existing product manufactures the novel mould in field, and it is formed by the punch coordinated up and down (or punch-die) die set usually, and punch (or punch-die) is fixed by upper padding plate, and upper padding plate and cope match-plate pattern are fixed, and die and lower bolster are fixed.
The method of the circular hole of traditional processing chamfer, before this to part punching, then carried out chamfering in machined, and this processing mode efficiency is low, and process costs is high.In order to address this problem, people devise punching, chamfering mould, at the last station of punching, chamfering mould, first go out circular hole, then form chamfering in a rear station extruding.But find in the production process of reality, after extruding chamfering, circular hole easily deforms, and then affects its position and dimensional accuracy.Because part is very not high to the requirement of chamfer dimesion precision, therefore in order to ensure the requirement of the position and dimensional accuracy that reach circular hole, the order of punching and chamfering can be changed, chamfering is formed in the last station extruding of mould, a rear station completes punching, therefore need to improve punching, chamfering mould, develop a kind of Novel punching chamfering fine blanking die that can realize punching after first chamfering.
Utility model content
The purpose of this utility model is to provide a kind of Novel punching chamfering fine blanking die, and this mould can realize the process sequence of punching after first chamfering, and position and the dimensional accuracy of the circular hole of processing are high.
The utility model solves the technical scheme adopted:
A kind of Novel punching chamfering fine blanking die, for the part that chamfering direction is contrary with pressing direction, comprise upper die and lower die, described patrix comprises cope match-plate pattern, upper padding plate, guide plate and punch-die, upper padding plate is fixed on bottom cope match-plate pattern, guide plate is located at bottom cope match-plate pattern, punch-die is located at bottom upper padding plate, punch-die passes guide plate and is mated, described counterdie comprises lower bolster and die, die is located at lower bolster top, it is characterized in that: described lower bolster is also fixed with chamfer punch and interstitial hole drift, described interstitial hole drift is just to punch-die, the die face of die is given prominence on the top of described chamfer punch.
As further improvement of the utility model, the top end face of described chamfer punch is provided with the chamfering block of a ring shape, and the cross section of described chamfering block is triangular in shape.
As further improvement of the utility model, described counterdie is also provided with main ejector, described main ejector is just to punch-die.
The beneficial effects of the utility model are:
1. the chamfering direction due to part is contrary with pressing direction, so chamfer punch is fixed on lower bolster, in matched moulds process, chamfer punch moves together with whole counterdie, billot chamfering punch tip gives prominence to the portion extrusion of die face, form required chamfering, chamfering goes out at a rear station interstitial hole drift shaping that namely circular hole completes punching and chamfering after being shaped.Due to punching after first chamfering, thus the position of circular hole of processing and dimensional accuracy high.Punching and blanking synchronously completes simultaneously, prevents circular hole because of the plastic deformation of following process, further increases position and the dimensional accuracy of circular hole.
2. when bore dia is larger, if directly squeeze out chamfering with the round punch of band chamfering, the extruding force not only needed is comparatively large, but also the round punch of described band chamfering is designed to the form of floating by needs, and complex structure, stability is low.The utility model arranges ring cross-section annular chamfer block triangular in shape on the top end face of chamfer punch, due to the structure that chamfering block top is sharp-pointed, so when matched moulds chamfer punch extruding billot time deformed region less, larger extruding force is not needed to squeeze out chamfering, therefore chamfer punch can directly be fixed on lower bolster, structure is simple, and stability is high.
3. main ejector facilitates the taking-up after forming parts.
Accompanying drawing explanation
Fig. 1 is the top view of required processing parts in the present embodiment.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the structural representation of chamfer punch in the utility model.
In figure: 1-cope match-plate pattern; 2-upper padding plate; 3-guide plate; 4-punch-die; 5-die; The main ejector of 6-; 7-interstitial hole drift; 8-chamfer punch; 9-lower bolster.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As depicted in figs. 1 and 2, be the part drawing of processing required in the present embodiment.This part has larger interstitial hole, and the bottom of this interstitial hole needs chamfering, and this part chamfering direction is contrary with pressing direction.
As shown in Figure 3, a kind of Novel punching chamfering fine blanking die, for the part that chamfering direction is contrary with pressing direction, comprise upper die and lower die, described patrix comprises cope match-plate pattern 1, upper padding plate 2, guide plate 3 and punch-die 4, upper padding plate 2 is fixed on bottom cope match-plate pattern 1, guide plate 3 is located at bottom cope match-plate pattern 1, and punch-die 4 is located at bottom upper padding plate 2, and punch-die 4 passes guide plate 3 and is mated, described counterdie comprises lower bolster 9 and die 5, and die 5 is located at lower bolster 9 top.Described lower bolster 9 is also fixed with chamfer punch 8 and interstitial hole drift 7, described interstitial hole drift 7 is just to punch-die 4, and the die face of die 5 is given prominence on the top of described chamfer punch 8.
Because the chamfering direction of part is contrary with pressing direction, so chamfer punch 8 is fixed on lower bolster 9, in matched moulds process, chamfer punch 8 moves together with whole counterdie, the portion extrusion of die face is given prominence on billot chamfering drift 8 top, form required chamfering, chamfering goes out at a rear station interstitial hole drift 7 shaping that namely circular hole completes punching and chamfering after being shaped.Due to punching after first chamfering, thus the position of circular hole of processing and dimensional accuracy high.Punching, blanking synchronously complete, and prevent circular hole because of the plastic deformation of following process, further increase position and the dimensional accuracy of circular hole.
As shown in Figure 3, in the present embodiment, described counterdie is also provided with main ejector 6, described main ejector 6 is just to punch-die 4.Main ejector 6 facilitates the taking-up after forming parts.
As shown in Figure 4, in the present embodiment, the top end face of described chamfer punch 8 is provided with the chamfering block of a ring shape, and the cross section of described chamfering block is triangular in shape.When bore dia is larger, if directly squeeze out chamfering with the round punch of band chamfering, the extruding force not only needed is comparatively large, but also the round punch of described band chamfering is designed to the form of floating by needs, and complex structure, stability is low.The utility model arranges ring cross-section annular chamfer block triangular in shape on the top end face of chamfer punch 8, due to the structure that chamfering block top is sharp-pointed, so deformed region is less when when matched moulds, chamfer punch 8 extrudes billot, larger extruding force is not needed to squeeze out chamfering, therefore chamfer punch 8 can directly be fixed on lower bolster 9, structure is simple, and stability is high.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (3)
1. a Novel punching chamfering fine blanking die, comprise upper die and lower die, described patrix comprises cope match-plate pattern, upper padding plate, guide plate and punch-die, upper padding plate is fixed on bottom cope match-plate pattern, guide plate is located at bottom cope match-plate pattern, punch-die is located at bottom upper padding plate, punch-die passes guide plate and is mated, described counterdie comprises lower bolster and die, die is located at lower bolster top, it is characterized in that: described lower bolster is also fixed with chamfer punch and interstitial hole drift, described interstitial hole drift is just to punch-die, and the die face of die is given prominence on the top of described chamfer punch.
2. a kind of Novel punching chamfering fine blanking die as claimed in claim 1, it is characterized in that: the top end face of described chamfer punch is provided with the chamfering block of a ring shape, the cross section of described chamfering block is triangular in shape.
3. a kind of Novel punching chamfering fine blanking die as claimed in claim 1, it is characterized in that: described counterdie is also provided with main ejector, described main ejector is just to punch-die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587900.0U CN204974994U (en) | 2015-08-07 | 2015-08-07 | Novel chamfer of punching a hole fine blanking mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587900.0U CN204974994U (en) | 2015-08-07 | 2015-08-07 | Novel chamfer of punching a hole fine blanking mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204974994U true CN204974994U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520587900.0U Active CN204974994U (en) | 2015-08-07 | 2015-08-07 | Novel chamfer of punching a hole fine blanking mould |
Country Status (1)
| Country | Link |
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| CN (1) | CN204974994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727516A (en) * | 2022-11-30 | 2023-09-12 | 珠海菲高科技股份有限公司 | Soft metal coarse and fine punching integrated punching upper die |
-
2015
- 2015-08-07 CN CN201520587900.0U patent/CN204974994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727516A (en) * | 2022-11-30 | 2023-09-12 | 珠海菲高科技股份有限公司 | Soft metal coarse and fine punching integrated punching upper die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201229 Address after: 430058 2nd floor, No.1 Workshop, No.8 fengshuwu Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee after: Wuhan Zhonghang fine blanking technology branch of Hubei Zhonghang Fine Blanking Technology Co.,Ltd. Address before: 430058 No.8, fengshuwu Road, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN FINE BLANKING TECHNOLOGY Co.,Ltd. |