CN205436798U - High accuracy turn -ups mould of using to thick plate - Google Patents

High accuracy turn -ups mould of using to thick plate Download PDF

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Publication number
CN205436798U
CN205436798U CN201521116337.5U CN201521116337U CN205436798U CN 205436798 U CN205436798 U CN 205436798U CN 201521116337 U CN201521116337 U CN 201521116337U CN 205436798 U CN205436798 U CN 205436798U
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China
Prior art keywords
workpiece
hole
drift
enlarged
accuracy
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Active
Application number
CN201521116337.5U
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Chinese (zh)
Inventor
周冠华
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.)
Foshan Chengyang Zhengda Mould Hardware Plastic Co Ltd
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Foshan Chengyang Zhengda Mould Hardware Plastic Co Ltd
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Application filed by Foshan Chengyang Zhengda Mould Hardware Plastic Co Ltd filed Critical Foshan Chengyang Zhengda Mould Hardware Plastic Co Ltd
Priority to CN201521116337.5U priority Critical patent/CN205436798U/en
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Publication of CN205436798U publication Critical patent/CN205436798U/en
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Abstract

The utility model discloses a high accuracy turn -ups mould of using to thick plate, last mould including a whole assembly, being provided with the drift on going up the mould, wherein, including still that one sets up the reverse drift of expanding the processing above the work piece to the work piece after punching a hole, the punch hole technology who has solved prior art is in the back of punching a hole to the work piece, and hole portion border leads to the fact to rebound in response to power easily and caves in, has increased the manufacturing tolerance and has led to the fact the problem that does not reach the tolerance and require.

Description

A kind of high accuracy flanging die for slab
Technical field
This utility model relates to the mould manufacture field of metal plate punching part, a kind of high accuracy flanging die for slab.
Background technology
Existing stamping parts typically uses vertical angle drift that workpiece is carried out hole flanging process, technical staff inevitably suffers a problem that: rebounded by internal stress effect generation by the edge, workpiece hole portion after hole flanging, edge produces a certain degree of angle of rebound below workpiece, has had a strong impact on the crudy of workpiece.Reduce to offset the aperture caused that caves in, edge, endoporus portion, technical staff often adds the larger surplus with the bounce-back of preformed hole portion aperture drift when punching, but the degree of accuracy that this mode can make punching is had a greatly reduced quality, and, the degree of hole portion bounce-back is affected by many factors and be difficult to calculate, and rushes great aperture and is only this problem of suitable aperture and perplexs technical staff always.
Therefore, prior art has yet to be improved and developed.
Utility model content
The purpose of this utility model is to provide a kind of flanging die for slab, solve the flange of prior art, flange hole technology after workpiece is punched out, the easy stress in edge, hole portion causes bounce-back to cave in, and adds manufacturing tolerance and causes the problem not reaching tolerance.
The technical solution of the utility model is as follows:
A kind of high accuracy flanging die for slab, including the upper mold of an overall assembling, described upper mold is provided with flange drift, wherein, also includes that one is arranged at the backward flanging punch that the workpiece after punching carries out above workpiece divergence process.
The described high accuracy flanging die for slab, wherein, described reverse drift is provided with the enlarged portion that workpiece carries out divergence process near one end of workpiece.
The described high accuracy flanging die for slab, wherein, the cross section of described enlarged portion is set to the inverted trapezoidal that top is wider than bottom.
The described high accuracy flanging die for slab, wherein, described enlarged portion is arranged to R angle.
The described high accuracy flanging die for slab, wherein, the enlarged portion of described reverse drift is set to a cone.
The described high accuracy flanging die for slab, wherein, described reverse drift is driven by upper mold.
The beneficial effects of the utility model: this utility model is by providing a kind of high accuracy flanging die for slab and flanging process, solve the punching technology of prior art after workpiece is carried out hole flanging, the easy stress in edge, hole portion causes bounce-back, adds manufacturing tolerance and causes the problem not reaching tolerance.There is bounce-back in various degree for workpiece hole portion in this utility model, it is provided that different enlarged portion structures is to reach preferably hole portion expansion effect, and simple in construction, reliability are high.
Accompanying drawing explanation
Fig. 1 is the structural representation of drift in this utility model.
Fig. 2 is the structural representation of reverse drift in this utility model.
Fig. 3 is the structural representation of reverse another embodiment of drift in this utility model.
Fig. 4 is the structural representation of reverse another embodiment of drift in this utility model.
Accompanying drawing mark explanation:
Drift 1, reverse drift 2, enlarged portion 21, workpiece 3.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, this utility model is further described by the embodiment that develops simultaneously referring to the drawings.
Refering to Fig. 1 and Fig. 2, this utility model provides a kind of high accuracy flanging die for slab, upper mold (not indicating in figure) including an overall assembling, drift 1 it is provided with in described upper mold, wherein, also include that one is arranged at the reverse drift 2 that the workpiece after punching carries out above workpiece 3 divergence process.
Further, described reverse drift 2 is provided with the enlarged portion 21 that workpiece carries out divergence process near one end of workpiece, and the enlarged portion 21 hole portion to workpiece that moves from top to bottom expands.
Further, the cross section of described enlarged portion 21 is set to the inverted trapezoidal that top is wider than bottom.Edge, portion, workpiece 3 hole after being punched is produced bounce-back (as shown in Figure 2) by internal stress effect, edge produces a certain degree of caving in below workpiece, enlarged portion 21 is down moved, edge, workpiece hole portion is expanded edge, portion 21 and extrudes outward and deform upon, originally the cave in edge, portion, workpiece 3 hole of rear-inclined is softened, and aperture returns back to aperture during punching.Certainly, the cross sectional shape of enlarged portion 21 of the present utility model is not only defined in inverted trapezoidal, refering to Fig. 3, another embodiment as the enlarged portion of the reverse drift of this utility model, enlarged portion 21 is arranged to a hemisphere, and enlarged portion 21 is down moved, and edge, workpiece hole portion is expanded the edge that portion 21 smoothly transits and extrudes outward and deform upon, it is the most progressive that the enlarged portion of present embodiment arranges deformation when making workpiece hole portion softened, it is not easy to infringement workpiece.Refering to Fig. 4, the enlarged portion 21 of the reverse drift of this utility model may be arranged as a cone, the limit that the edge that enlarged portion 21 in present embodiment is caved in workpiece hole portion contacts is longer, for the hole portion (it is serious that back aperture of caving in reduces situation) that the degree that rebounds on workpiece is more serious, the reverse drift 2 of present embodiment is the most applicable.
Preferably, described reverse drift 2 is driven by upper mold.
This utility model is by providing a kind of high accuracy flanging die for slab and flanging process, solve the punching technology of prior art after workpiece is punched out, the easy stress in edge, hole portion causes bounce-back, adds manufacturing tolerance and causes the problem not reaching tolerance.There is bounce-back in various degree for workpiece hole portion in this utility model, it is provided that different enlarged portion structures is to reach preferably hole portion expansion effect, and simple in construction, reliability are high.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these modifications and variations all should belong to the protection domain of this utility model claims.

Claims (6)

1., for a high accuracy flanging die for slab, including the upper mold of an overall assembling, described upper mold is provided with drift, it is characterised in that also include that one is arranged at the reverse drift that the workpiece after punching carries out above workpiece divergence process.
High accuracy flanging die for slab the most according to claim 1, it is characterised in that described reverse drift is provided with the enlarged portion that workpiece carries out divergence process near one end of workpiece.
High accuracy flanging die for slab the most according to claim 2, it is characterised in that the cross section of described enlarged portion is set to the inverted trapezoidal that top is wider than bottom.
High accuracy flanging die for slab the most according to claim 2, it is characterised in that described enlarged portion is arranged to a hemisphere.
High accuracy flanging die for slab the most according to claim 2, it is characterised in that the enlarged portion of described reverse drift is set to a cone.
High accuracy flanging die for slab the most according to claim 2, it is characterised in that described reverse drift is driven by upper mold.
CN201521116337.5U 2015-12-25 2015-12-25 High accuracy turn -ups mould of using to thick plate Active CN205436798U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521116337.5U CN205436798U (en) 2015-12-25 2015-12-25 High accuracy turn -ups mould of using to thick plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521116337.5U CN205436798U (en) 2015-12-25 2015-12-25 High accuracy turn -ups mould of using to thick plate

Publications (1)

Publication Number Publication Date
CN205436798U true CN205436798U (en) 2016-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521116337.5U Active CN205436798U (en) 2015-12-25 2015-12-25 High accuracy turn -ups mould of using to thick plate

Country Status (1)

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CN (1) CN205436798U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108270055A (en) * 2017-12-27 2018-07-10 苏州市凯丽耐实业有限公司 A kind of filter lid board manufacturing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108270055A (en) * 2017-12-27 2018-07-10 苏州市凯丽耐实业有限公司 A kind of filter lid board manufacturing apparatus

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