CN207127182U - A kind of chamfer mould - Google Patents
A kind of chamfer mould Download PDFInfo
- Publication number
- CN207127182U CN207127182U CN201721098211.9U CN201721098211U CN207127182U CN 207127182 U CN207127182 U CN 207127182U CN 201721098211 U CN201721098211 U CN 201721098211U CN 207127182 U CN207127182 U CN 207127182U
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- CN
- China
- Prior art keywords
- chamfered bore
- taper
- hole
- liftout
- taper chamfered
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Abstract
It the utility model is related to machining technology field, specifically disclose a kind of chamfer mould, the chamfering forming hole of the chamfer mould is made up of taper chamfered bore one and taper chamfered bore two, and the cone angle of taper chamfered bore one is less than the cone angle of taper chamfered bore two, the advantage of the structure is, during bar product to be processed enters taper chamfered bore two by taper chamfered bore one, due to the change of cone angle（Become big）So that the resistance increase that bar product is descending, speed reduces, the descending extreme position of more preferable control bar, bar is effectively prevented because of the gap entered more than descending extreme position between ejector beam and liftout hole so as to avoid producing annular flanging, so that chamfering process one-shot forming, reduces production cost, production efficiency is improved.
Description
Technical field
It the utility model is related to machining technology field, and in particular to a kind of chamfer mould.
Background technology
The chamfering process of bar, is generally processed by turning, but the mode of turnery processing chamfering is commonly used to car
The processing of cutting members.Although chamfer machining can also be carried out by the way of turning for cast member, forge piece, clamping be present and account for
With the defects of time is longer, efficiency is low.Therefore, it have developed a kind of chamfer machining mould of forging forming chamfering for such part
Tool.This kind of chamfer machining mold reference Fig. 1, including die ontology 1, the die ontology is interior to be provided with extruding orifices 11 and liftout hole 12,
Taper chamfered bore 13, big the mouth diameter and mould of the taper chamfered bore are provided between the lower end and liftout hole 12 of the extruding orifices 11
The pressure diameter of hole 11 is identical, and the osculum diameter of taper chamfered bore 13 is identical with the diameter in liftout hole 12.
Ejector beam 2 is located in liftout hole 12 during forging forming chamfering, and the upper surface of ejector beam and liftout hole
Upper surface it is concordant, and there is certain gap between ejector beam and liftout hole.Die module 4 applies downward pressure to bar 5
Power, the lower end of bar 5 is driven to form the chamfering 54 shown in Fig. 4 by taper chamfered bore 13, extruding.The chamfer mould of the structure
Defect is that the speed during bar 5 is descending under pressure is not easy to control with stroke, and easily generation bar is over-pressed,
Lower edge enters ejector beam and the situation in the gap in liftout hole, forms the annular flanging 55 shown in Fig. 4.There is annular flanging 55
Afterwards, it is easily that ejector beam is stuck；Also the product for annular flanging occur is ground or turning trim process, undoubtedly be increased simultaneously
Process, improves production cost, reduces production efficiency.
The content of the invention
The technical problems to be solved in the utility model is that the chamfer mould for solving existing forging forming easily makes product produce ring
The technological deficiency of shape flanging.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows：A kind of chamfer mould, is at least wrapped
Die ontology is included, the extruding orifices and liftout hole, the extruding orifices and liftout of coaxial and mutual UNICOM are provided with the die ontology
Chamfering forming hole is provided between hole, the chamfering forming hole includes taper chamfered bore one and taper chamfered bore two, and the taper is fallen
The upper aperture of corner apertures one and the lower aperture of extruding orifices connect, and the lower aperture of the taper chamfered bore two connects with the upper aperture in liftout hole
Connect；The cone angle of the taper chamfered bore one is less than the cone angle of taper chamfered bore two.
A kind of preferred embodiment, the cone angle of the taper chamfered bore one is α, and the cone angle of the taper chamfered bore two is β,
Wherein α=40 ° ~ 50 °, β=100 ° ~ 120 °.
A kind of preferred embodiment, the height of the chamfering forming hole is H, and the height of the taper chamfered bore one is h1,
The height of the taper chamfered bore two is h2, wherein h1：h2：H=（0.15~0.25）:（0.75~0.85）：1.
A kind of preferred embodiment, in addition to ejector beam and moved axially in liftout hole for driving the ejector beam
Liftout drive mechanism, the ejector beam coordinate with liftout interporal lacuna.
A kind of preferred embodiment, in addition to the die module above die ontology.
A kind of preferred embodiment, in addition to the core rod inside the die ontology, the hardness of the core rod are more than
The hardness of die ontology, at least described extruding orifices and chamfering forming hole are located on the core rod.
A kind of preferred embodiment, at least a portion in the liftout hole is on core rod.
The chamfer mould of the present embodiment, wherein chamfering forming hole are made up of taper chamfered bore one and taper chamfered bore two, and
The cone angle of taper chamfered bore one is less than the cone angle of taper chamfered bore two, and the advantage of the structure is, bar product to be processed by
During taper chamfered bore one enters taper chamfered bore two, due to the change of cone angle（Become big）So that bar product is descending
Resistance increases, and speed reduces, and the more preferable extreme position for controlling bar descending, effectively prevents bar because exceeding descending extreme position
And the gap entered between ejector beam and liftout hole is so as to avoiding producing annular flanging so that chamfering process one-shot forming, reduce
Production cost, improves production efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment chamfer mould；
Fig. 2 is the partial enlargement structural representation at chamfering forming hole in Fig. 1；
Fig. 3 is the product structure schematic diagram after the processing of the present embodiment chamfer mould；
Fig. 4 is the product partial structural diagram after chamfer mould processing in the prior art.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in figure 1, a kind of chamfer mould of the present embodiment, including die ontology 1, ejector beam 2, liftout drive mechanism 3
And die module 4.Extruding orifices 11 and liftout hole 12 provided with coaxial and mutual UNICOM wherein in die ontology 1, extruding orifices 11
In be used to accommodate the bar 5 of chamfering to be processed, be used to accommodate ejector beam 2 in liftout hole 12, wherein ejector beam 2 is in chamfer machining mistake
Bar is ejected after the completion of Cheng Zhongqi support bars lower end, the position-limiting action of the limitation descending extreme position of bar and chamfer machining
Effect.
In the present embodiment, ejector beam 2 coordinates with the gap of liftout hole 12, and ejector beam 2 is driven in liftout by liftout drive mechanism 3
Moved in bar 2.It should be noted that wherein liftout drive mechanism 3 and die module 4 are prior art, not the application is practical
Novel point, therefore its concrete structure is not described in detail.
The improvement maximum as the present embodiment, as shown in Fig. 2 be provided with wherein between extruding orifices 11 and liftout hole 12 chamfering into
Type hole 13, the chamfering forming hole include taper chamfered bore 1 and taper chamfered bore 2 132, wherein taper chamfered bore 1
Upper aperture is connected with the lower aperture of extruding orifices 11, and the lower aperture of taper chamfered bore 2 132 is connected with the upper aperture in liftout hole 12.
Further, the cone angle of taper chamfered bore 1 is less than 132 cone angles of taper chamfered bore two.Set taper chamfering
The cone angle in hole 1 is α, and the cone angle of taper chamfered bore 2 132 is β, then α=40 ° ~ 50 °, β=100 ° ~ 120 °.
Further, the height of chamfering forming hole 13 is set as H, and the height of taper chamfered bore 1 is h1, taper chamfering
The height in hole 2 132 is h2.Then in order that the chamfer height that must be machined meets technological requirement, it is necessary to set h1：h2：H=
（0.15~0.25）:（0.75~0.85）：1.
A kind of embodiment for having choosing, in the present embodiment, α=45 ° 5, β=110, the diameter a of extruding orifices 11 is 20.9mm, liftout
The diameter c in hole 12 is 16mm, and the lower orifice diameter of taper chamfered bore 1 is the 132 of taper chamfered bore two upper orifice diameter b
For 18.2mm, accordingly, H=4.03mm, h1=3.26mm, h2=0.77.
The structure of bar product is machined with the embodiment as shown in figure 3, the end of bar body 51 forms chamfering
The conical surface 1 and the chamfering conical surface 2 52, the wherein cone angle of the chamfering conical surface 1 are less than the cone angle of the chamfering conical surface 2 52.
A kind of preferred embodiment, the wherein inside of die ontology 1 are provided with core rod 14, and the hardness of the core rod 14 is more than mould
The hardness of body 1.Also, at least described extruding orifices 11 and chamfering forming hole 13 are located on the core rod, further, liftout hole 12
At least a portion on the core rod 14.The purpose being arranged such is, reduces the material cost of mould, while core rod 14 is set
Changeable type structure is set to, then on the basis of die ontology, by changing the core rod of different size, realizes the rod of more specifications
Expect the chamfer machining of product.
With the method for the chamfer mould chamfering of the present embodiment, comprise the following steps：
Step 1, put down in the upper aperture of the upper surface and liftout hole that ejector beam are gone upward to by liftout drive mechanism driving ejector beam
Together；
Step 2, bar to be processed is put into extruding orifices；
Step 3, the lower end of bar is come downwards into the lower end of chamfering forming hole, wherein bar by molding Component driver bar
Resistance in taper chamfered bore two is more than the resistance in taper chamfered bore one, and the downstream rate in taper chamfered bore two is small
In the downstream rate in taper chamfered bore one；
Step 4, molding component is retracted, and liftout drive mechanism driving ejector beam is up, and ejector beam ejects bar, completes rod
Expect the chamfer machining process of end.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all not to limit the utility model
Made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in this practicality
Within new protection domain.
Claims (7)
1. a kind of chamfer mould, including at least die ontology, the extruding orifices provided with coaxial and mutual UNICOM in the die ontology
With liftout hole, chamfering forming hole is provided between the extruding orifices and liftout hole, it is characterised in that the chamfering forming hole includes cone
Shape chamfered bore one and taper chamfered bore two, the upper aperture of the taper chamfered bore one and the lower aperture of extruding orifices connect, the cone
The lower aperture of shape chamfered bore two is connected with the upper aperture in liftout hole；The cone angle of the taper chamfered bore one is less than taper chamfered bore two
Cone angle.
2. according to the chamfer mould described in claim 1, it is characterised in that the cone angle of the taper chamfered bore one is α, the cone
The cone angle of shape chamfered bore two is β, wherein α=40 ° ~ 50 °, β=100 ° ~ 120 °.
3. according to the chamfer mould described in claim 2, it is characterised in that the height of the chamfering forming hole is H, the taper
The height of chamfered bore one is h1, and the height of the taper chamfered bore two is h2, wherein h1：h2：H=（0.15~0.25）:（0.75~
0.85）：1.
4. according to the chamfer mould described in claim any one of 1-3, it is characterised in that also including ejector beam and for driving
The liftout drive mechanism that ejector beam moves axially in liftout hole is stated, the ejector beam coordinates with liftout interporal lacuna.
5. according to the chamfer mould described in claim 4, it is characterised in that also include the pressing mold group above die ontology
Part.
6. according to the chamfer mould described in claim 1-3 or 5 any one, it is characterised in that also include being located at the mould sheet
The core rod in internal portion, the hardness of the core rod are more than the hardness of die ontology, and at least described extruding orifices and chamfering forming hole are located at
On the core rod.
7. according to the chamfer mould described in claim 6, it is characterised in that at least a portion in the liftout hole is located at core rod
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098211.9U CN207127182U (en) | 2017-08-30 | 2017-08-30 | A kind of chamfer mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098211.9U CN207127182U (en) | 2017-08-30 | 2017-08-30 | A kind of chamfer mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207127182U true CN207127182U (en) | 2018-03-23 |
Family
ID=61636723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721098211.9U Expired - Fee Related CN207127182U (en) | 2017-08-30 | 2017-08-30 | A kind of chamfer mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207127182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520389A (en) * | 2017-08-30 | 2017-12-29 | 浙江鼎盛汽车紧固件有限公司 | A kind of chamfer mould and chamfering method |
-
2017
- 2017-08-30 CN CN201721098211.9U patent/CN207127182U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520389A (en) * | 2017-08-30 | 2017-12-29 | 浙江鼎盛汽车紧固件有限公司 | A kind of chamfer mould and chamfering method |
| CN107520389B (en) * | 2017-08-30 | 2023-08-22 | 浙江鼎盛汽车紧固件有限公司 | Chamfering die and chamfering method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20190830 |