CN106914578B - A kind of forging multipart punch - Google Patents
A kind of forging multipart punch Download PDFInfo
- Publication number
- CN106914578B CN106914578B CN201710249781.1A CN201710249781A CN106914578B CN 106914578 B CN106914578 B CN 106914578B CN 201710249781 A CN201710249781 A CN 201710249781A CN 106914578 B CN106914578 B CN 106914578B
- Authority
- CN
- China
- Prior art keywords
- punch
- forging
- holder shank
- loose plug
- inner hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention discloses a kind of forging multipart punch, including lower die and formed punch corresponding with lower die, the formed punch include punch-holder shank, and the upper end of punch-holder shank is fixed by screws on upper padding plate；Cutting blade is arranged in the lower end of the punch-holder shank, and the cutting blade is bolted on the lower end of punch-holder shank；The outer diameter of punch-holder shank is less than the outer diameter of cutting blade；Loose plug is socketed on punch-holder shank, and the upper end of loose plug is abutted with the spring being set on punch-holder shank, and the upper end of spring is abutted with upper padding plate；The lateral profile of the loose plug is corresponding with the side profile of forging inner hole.The invention has the advantages that due to the setting of loose plug, it is that loose plug is contacted with the inner hole side wall of forging first when can guarantee punching, inner hole side wall is supported in advance, ensure that will not generate biggish deformation in punch process, in addition, in formed punch lifting process, due to the effect of spring, loose plug has certain pressure to forging, avoids hole contraction and the case where forging encases formed punch and can not fall off occurs.
Description
Technical field
The invention belongs to the fields of forging, and are removed specifically in die forging production process to thin-walled forging inner hole gross weight
When it is a kind of prevent forging thin-walled occur punching deformation mold.
Background technique
Some connecting rods, flange, generally there is various shape hole shape structure in portion to the forging products such as wheel hub in the product, in forging process
Middle needs get rid of the gross weight in hole, and the die forging production technology of this kind of forging products generally comprises: heating, finish-forging, is cut blocking
The processes such as side, punching, correction, will form certain thickness gross weight in finish-forging process hole, and punching is using formed punch to by forging
Gross weight is got rid of in hole, forms a through-hole, and some product hole walls are relatively thin, and biggish deformation can be generated in punch process,
There is formed punch side, Kong Huixiang contract not can avoid this thin-wall part using the various punch structures for reducing punching power yet
Deformation.
Summary of the invention
Thin-walled deformation is eliminated when it is an object of the invention to the thin-walled punching forgings for needing punching, guarantees the size essence in hole
Degree designs a kind of mold for preventing thin-wall hole punching forgings from deforming, and can apply in punch process to hole wall and constrain, prevent
It deforms in punch process, while design has the material-pulling device to forging, prevents the contraction of punch process mesoporous from forging packet occur
Firmly formed punch and the case where can not fall off, this formed punch can be used alone, and also can be applied to various cooperation trimmings, punching and correction
The composite die of technique.Specific technical solution is as follows:
A kind of forging multipart punch, including lower die and formed punch corresponding with lower die, the formed punch include punch-holder shank, punch-holder shank
Upper end be fixed by screws on upper padding plate；Cutting blade is arranged in the lower end of the punch-holder shank, and the cutting blade is bolted on
The lower end of punch-holder shank；The outer diameter of punch-holder shank is less than the outer diameter of cutting blade；Loose plug is socketed on punch-holder shank, the upper end of loose plug
It is abutted with the spring being set on punch-holder shank, the upper end of spring is abutted with upper padding plate；The lateral profile of the loose plug and forging
The side profile of part inner hole is corresponding.
The outer upper of the loose plug is to face directly, and lower part is inclined-plane, is faced directly for transition face between inclined-plane, described to face directly
With angle >=3 ° of transition face.
Thickness >=4mm of the cutting blade.
The height on the inclined-plane is the one third of forging hole depth between 2/3rds.
The invention has the advantages that due to the setting of loose plug, it is ensured that be loose plug and forging first when punching
The contact of inner hole side wall, is in advance supported inner hole side wall, and ensure that will not generate biggish deformation in punch process, in addition,
In formed punch lifting process, due to the effect of spring, loose plug has certain pressure to forging, avoids hole and shrinks appearance
The case where forging encases formed punch and can not fall off.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the enlarged drawing of cutting blade part.
Specific embodiment
The present invention is illustrated with reference to the accompanying drawing, as shown, the present invention includes lower die 8 and punching corresponding with lower die 8
First 2, the formed punch includes punch-holder shank 9, and the upper end of punch-holder shank 9 is fixed on upper padding plate 6 by screw 5；Under the punch-holder shank 9
End setting cutting blade 10, the cutting blade 10 are fixed on the lower end of punch-holder shank 9 by bolt 3；The outer diameter of punch-holder shank 9 is less than cutting blade 10
Outer diameter；Loose plug 1 is socketed on punch-holder shank 9, and the upper end of loose plug 1 is abutted with the spring 4 being set on punch-holder shank 9, bullet
The upper end of spring 4 is abutted with upper padding plate 6；The lateral profile of the loose plug 1 is corresponding with the side profile of 7 inner hole of forging.
Not influenced by forging hole size error convenient for the activity of loose plug 1 and forging inner hole, the activity
The outer upper of insert is to face directly, and lower part is inclined-plane, is faced directly between inclined-plane as transition face, it is described face directly with the angle of transition face >=
3 °, which can guarantee that loose plug is smoothly inserted into forging inner hole or is detached from forging inner hole.
1 >=4mm of thickness h of the cutting blade.
The one third that the height h on the inclined-plane is forging hole depth H is between 2/3rds.
Operating principle of the invention is: 1) forging 7 being put into lower die 8, upper padding plate 6 drives the effect in press ram
Lower drive formed punch moves downward, and the inclined-plane of loose plug 1 is contacted with the side of forging inner hole first, under the action of the spring, by
Then inclined-plane, therefore, can inner hole side wall to forging apply radial pressure, on the other hand, on the inside of the profile and workpiece on inclined-plane
Side profile is corresponding, ensure that forging inner hole side will not deform；Continue to move downward in formed punch 2 and 7 inner hole of forging is connected
After skin carries out shearing punching except movement, formed punch 2 is moved upwards by bottom dead centre, at this point, since loose plug 1 is socketed on punch-holder shank 9,
Under the action of the spring, the inclined-plane of loose plug 1 is still kept in contact with the inner hole side of forging, avoids hole contraction and forging occurs
The case where encasing formed punch and can not falling off.
Claims (4)
1. a kind of forging multipart punch, including lower die and formed punch corresponding with lower die, it is characterised in that: the formed punch includes formed punch
The upper end of handle, punch-holder shank is fixed by screws on upper padding plate；Cutting blade is arranged in the lower end of the punch-holder shank, and the cutting blade passes through spiral shell
Bolt is fixed on the lower end of punch-holder shank；The outer diameter of punch-holder shank is less than the outer diameter of cutting blade；Loose plug is socketed on punch-holder shank, activity edge
The upper end of block is abutted with the spring being set on punch-holder shank, and the upper end of spring is abutted with upper padding plate；The outside of the loose plug
Profile is corresponding with the side profile of forging inner hole；When punching, the inclined-plane of loose plug is contacted with the side of forging inner hole first,
Under the action of spring, loose plug can inner hole side wall to forging apply radial pressure, on the other hand, the profile and workpiece on inclined-plane
The side profile of inside is corresponding, ensure that forging inner hole side will not deform；When formed punch is moved upwards by bottom dead centre, due to
Loose plug is socketed on punch-holder shank, and under the action of the spring, the inclined-plane of loose plug still keeps connecing with the inner hole side of forging
Touching avoids hole contraction and the case where forging encases formed punch and can not fall off occurs.
2. forging multipart punch according to claim 1, it is characterised in that: the outer upper of the loose plug is straight
Face, lower part are inclined-plane, are faced directly between inclined-plane as transition face, angle >=3 ° faced directly with transition face.
3. forging multipart punch according to claim 1, it is characterised in that: thickness >=4mm of the cutting blade.
4. forging multipart punch according to claim 2, it is characterised in that: the height on the inclined-plane is forging hole depth
One third is between 2/3rds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249781.1A CN106914578B (en) | 2017-04-17 | 2017-04-17 | A kind of forging multipart punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249781.1A CN106914578B (en) | 2017-04-17 | 2017-04-17 | A kind of forging multipart punch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106914578A CN106914578A (en) | 2017-07-04 |
| CN106914578B true CN106914578B (en) | 2019-04-12 |
Family
ID=59568520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710249781.1A Active CN106914578B (en) | 2017-04-17 | 2017-04-17 | A kind of forging multipart punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106914578B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719202B (en) * | 2020-12-08 | 2023-02-21 | 山西豪钢重工股份有限公司 | Integral forging and forming process for mining chain wheel |
| CN112620496A (en) * | 2020-12-09 | 2021-04-09 | 中信渤海铝业控股有限公司 | Photovoltaic frame stamping die |
| CN114535487B (en) * | 2022-04-25 | 2022-07-01 | 捷安特轻合金科技(海安)有限公司 | Forging die |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203356333U (en) * | 2013-05-15 | 2013-12-25 | 中信戴卡股份有限公司 | Locating mechanism for trimming and punching mold of casting wheel |
| CN204093910U (en) * | 2014-11-05 | 2015-01-14 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of punching press Combined punch pin |
| CN205270553U (en) * | 2015-12-15 | 2016-06-01 | 中信戴卡股份有限公司 | Modified forges wheel cut -out press |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4592135B2 (en) * | 1999-12-28 | 2010-12-01 | 株式会社アマダ | Mold equipment |
| CN102632129A (en) * | 2012-04-16 | 2012-08-15 | 江苏金方圆数控机床有限公司 | Contactless cutting mould for numerical control turret punch press |
| CN204035319U (en) * | 2014-08-22 | 2014-12-24 | 四川君格机械制造有限公司 | A kind of spoke punching die |
| CN204035318U (en) * | 2014-08-22 | 2014-12-24 | 四川君格机械制造有限公司 | A kind of punching die of wheel rim spoke hole |
| CN204429969U (en) * | 2015-02-05 | 2015-07-01 | 中信戴卡股份有限公司 | The punching shaving die improved |
-
2017
- 2017-04-17 CN CN201710249781.1A patent/CN106914578B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203356333U (en) * | 2013-05-15 | 2013-12-25 | 中信戴卡股份有限公司 | Locating mechanism for trimming and punching mold of casting wheel |
| CN204093910U (en) * | 2014-11-05 | 2015-01-14 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of punching press Combined punch pin |
| CN205270553U (en) * | 2015-12-15 | 2016-06-01 | 中信戴卡股份有限公司 | Modified forges wheel cut -out press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106914578A (en) | 2017-07-04 |
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