CN108941416A - A kind of cold upsetting die of car structure - Google Patents
A kind of cold upsetting die of car structure Download PDFInfo
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- CN108941416A CN108941416A CN201811130514.3A CN201811130514A CN108941416A CN 108941416 A CN108941416 A CN 108941416A CN 201811130514 A CN201811130514 A CN 201811130514A CN 108941416 A CN108941416 A CN 108941416A
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- Prior art keywords
- core
- die
- molding
- wall
- inner core
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A kind of cold upsetting die of car structure, including die body, the end face of die body is provided with forming cavity, being provided in forming cavity can pressed core compatible with part designated shape, pressed core includes forming outer core and molding inner core, molding inner core is arranged in the inner hole for forming outer core, it forms and forms upper molding cavity between the top surface of inner core and the inner hole wall of the outer core of molding, the inner hole wall of the molding inner core and the bottom surface of forming cavity form lower molding cavity, form the air drain that perforation respective external wall is distributed on the outer wall of inner core and on the outer wall of the outer core of molding.The advantage is that: the matrix thickness of molding inner core compared with the existing technology is bigger, and it is more sturdy and durable, have the characteristics that high impact-resistant power, therefore mold is hardly damaged, the service life of mold improves decades of times or more than prior art mold structure；Air drain can slightly be adjusted according to the actual size and structure of part, and air drain can ensure that the stability of die venting, oil extraction, guaranteed the stability of manufactured part size, improved the service life of mold.
Description
Technical field
The present invention relates to a kind of machine die manufacturing technology, a kind of especially cold upsetting die of car structure.
Background technique
Application No. is the Chinese utility model patents of CN201220246697.7 entitled " cold-heading molding mould " for existing one kind
A kind of cold-heading molding mould is disclosed, the mold core and matrix being arranged including housing and in housing, die cavity is by mold core and matrix
Hole is collectively formed, it is characterised in that: the mold core and matrix are overall structure, and die cavity is equipped with gas vent, the gas vent into
The interior hole end surface that port is located at the matrix is close to the inner hole side wall of matrix, and exhaust outlet is located at the bottom end face of the mold core, whole
The mold core and matrix of body structure have the outer circle of cone.The advantages of utility model, has: preventing matrix damage from falling off, extends mould
Has service life, the assembly or disassembly of mold is simple and convenient.However, cold-heading molding mould film when processing the part of thinner thickness
Piece is easily damaged, and influences using effect, therefore the structure of the cold-heading molding mould also needs to be further improved.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of punching press for above-mentioned state of the art to be hardly damaged,
Long service life, the good cold upsetting die of car structure of using effect.
The technical scheme of the invention to solve the technical problem is: this cold upsetting die of car structure, including die body, in mould
The end face of body is provided with forming cavity, be provided in forming cavity can pressed core compatible with part designated shape, feature
Be: the pressed core includes forming outer core and molding inner core, and the molding inner core is arranged in the inner hole for forming outer core, institute
State and form upper molding cavity between the top surface of molding inner core and the inner hole wall of the outer core of molding, the inner hole wall of the molding inner core and at
The bottom surface of type chamber forms lower molding cavity, is distributed with perforation on the outer wall of the molding inner core and on the outer wall of the outer core of molding
The air drain of respective external wall.
As an improvement, the air drain is preferably equally spaced on corresponding lateral wall, the width of the air drain is
0.4~0.7mm.
It is further improved, is preferably 2~12 positioned at the air drain quantity formed on outer core lateral wall, be located at molding inner core
Air drain quantity on lateral wall is preferably 2~6.
It is further improved, is preferably also equipped with air channel, the air channel and phase on the outer wall bottom surface for forming outer core
The air drain that should be formed on outer core lateral wall is connected.
As an improvement, the diameter of bore of the outer core of the molding is preferably mutually fitted with the diameter of part step on forming part
Match.
As an improvement, the outer diameter of the outer core of molding is preferably 0.03~0.05mm bigger than forming cavity internal diameter.
As an improvement, the diameter of bore of the outer core of molding is preferably 0.01~0.02mm bigger than molding inner core outer diameter.
As an improvement, the top surface of molding inner core preferably with form the distance between outer core top surface as 0.4~8mm.
As an improvement, the pressed core is preferably alloy core.
As an improvement, the die body includes die cap, rear cover, die-cushion and top stick, the top stick is set in die-cushion, described
Rear cover is connected to the lower part of die-cushion, and the die cap is nested in the top of die-cushion, the lower part of the die cap and the upper side wall spiral shell of rear cover
Line is connected, and the top of the die cap is provided with die cap through-hole, between the side wall and die-cushion top surface of the die cap through-hole formed at
Type chamber.
Compared with the prior art, the advantages of the present invention are as follows: molding inner core is arranged in the inner hole for forming outer core, in molding
Upper molding cavity is formed between the top surface of core and the inner hole wall of the outer core of molding, forms part step by upper molding cavity, at
The matrix thickness of type inner core compared with the existing technology is bigger, more sturdy and durable, has the characteristics that high impact-resistant power, therefore mold
It is hardly damaged, the service life of mold improves decades of times or more than prior art mold structure；Air drain can be according to the reality of part
Size and structure slightly adjust, and air drain can ensure that the stability of die venting, oil extraction, guarantee the stabilization of manufactured part size
Property, improve the service life of mold；The distance between forming top surface of inner core and form outer core top surface is 0.4~8mm, can also be with
It is worked into 8mm or more according to the demand of part, is solved because part step thicknesses size is too small, matrix assembly difficulty, service life be low,
The puzzlement that die cost is high, production efficiency is low；The superiority of this mould structure repeatedly, is widely tested in actual production at present
Card, die life obtain rapid raising than prior art construction.In mold production process, part manufacturing cost, production effect
Rate, quality, the stability of part size are greatly improved.Suitable for all kinds of coiled hair parts, flange step rivet, Yi Jiqi
The multi-step parts of its form are the mould structures being worthy to be popularized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural exploded view of Fig. 1；
Fig. 3 is the top view of Fig. 1.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1 to Figure 3, the cold upsetting die of car structure of the present embodiment, including die body are provided with molding in the end face of die body
Chamber 11, be provided in forming cavity 11 can pressed core compatible with part designated shape, the pressed core include molding
Outer core 4 is arranged in the inner hole for form outer core 4 with molding inner core 5, the molding inner core 5, the top surface for forming inner core 5 and at
Upper molding cavity 41 is formed between the inner hole wall of the outer core 4 of type, the bottom surface of the inner hole wall and forming cavity 11 of the molding inner core 5 is formed
Lower molding cavity 51 is distributed on the outer wall of the molding inner core 5 and on the outer wall of the outer core 4 of molding and penetrates through respective external wall
Air drain 52.The air drain 52 is equally spaced on corresponding lateral wall, and the width of the air drain 52 is 0.4~0.7mm.Position
It is 2~12 in forming the air drain quantity on outer core lateral wall, the air drain quantity on molding inner core lateral wall is 2~6.
Air channel 42 is also equipped on the outer wall bottom surface for forming outer core 4, outside the air channel 42 and corresponding shaping on core lateral wall
Air drain 52 is connected.The diameter of bore S1 of the outer core 4 of the molding is adapted with the diameter of part step on forming part.Molding is outer
The outer diameter S3 of core is 0.03~0.05mm bigger than forming cavity internal diameter S4.The diameter of bore S1 ratio for forming outer core forms inner core outer diameter
Big 0.01~the 0.02mm of S2.Forming the top surface of inner core 5 and forming the distance between outer core top surface L is 0.4~8mm.The molding
Core is alloy core.Alloy core is not the restriction to pressed core material but to the practical application of the prior art.It is described
Die body includes die cap 1, rear cover 2, and die-cushion 3 and top stick, the top stick are set in die-cushion 3, and the rear cover 2 is connected to die-cushion 3
Lower part, the die cap 1 is nested on the top of die-cushion 3, and the lower part of the die cap 1 is connected with the upper side wall screw thread of rear cover 2, institute
The top for stating die cap 1 is provided with die cap through-hole, and forming cavity 11 is formed between the side wall and die-cushion top surface of the die cap through-hole.
Working principle: in the prior art by placing matrix on mold core come the part step on machine-shaping part, zero
Matrix influences to reuse in dolioform after part is pressed into matrix, when part step thicknesses are less than 10mm, the thickness of matrix compared with
Thin, matrix easily broken disengaging formwork when by pressing mold impact force influences using effect, and the present apparatus is by forming outer core and molding
Inner core cooperates to realize the production of part step, avoids the use of diaphragm, is hardly damaged, and extends cold upsetting die of car structure
Service life, and thickness is easy to adjust, and using effect is good.
Claims (10)
1. a kind of cold upsetting die of car structure, including die body are provided with forming cavity (11) in the end face of die body, set in forming cavity (11)
Being equipped with can pressed core compatible with part designated shape, it is characterised in that: the pressed core include form outer core (4) and
Form inner core (5), molding inner core (5) setting in the inner hole for forming outer core (4), the top surface of molding inner core (5) and
It forms and forms upper molding cavity (41) between the inner hole wall of outer core (4), the inner hole wall of molding inner core (5) and forming cavity (11)
Bottom surface formed lower molding cavity (51), be distributed on the outer wall of molding inner core (5) and on the outer wall of the outer core (4) of molding
There is the air drain (52) of perforation respective external wall.
2. cold upsetting die of car structure according to claim 1, it is characterised in that: the air drain (52) is equally spaced in phase
On the lateral wall answered, the width of the air drain (52) is 0.4~0.7mm.
3. cold upsetting die of car structure according to claim 2, it is characterised in that: positioned at the air drain number formed on outer core lateral wall
Amount is 2~12, and the air drain quantity on molding inner core lateral wall is 2~6.
4. cold upsetting die of car structure according to claim 3, it is characterised in that: on the outer wall bottom surface for forming outer core (4)
It is provided with air channel (42), the air channel (42) is connected with the air drain (52) on the outer core lateral wall of corresponding shaping.
5. according to claim 1 to any cold upsetting die of car structure in 4, it is characterised in that: core (4) is interior outside the molding
Bore dia (S1) is adapted with the diameter of part step on forming part.
6. according to claim 1 to any cold upsetting die of car structure in 4, it is characterised in that: the outer diameter (S3) of the outer core of molding
It is 0.03~0.05mm bigger than forming cavity internal diameter (S4).
7. according to claim 1 to any cold upsetting die of car structure in 4, it is characterised in that: the diameter of bore of the outer core of molding
(S1) 0.01~0.02mm bigger than molding inner core outer diameter (S2).
8. according to claim 1 to the cold upsetting die of car structure any in 4, it is characterised in that: the top surface of molding inner core (5) with
Forming the distance between outer core top surface (L) is 0.4~8mm.
9. according to claim 1 to any cold upsetting die of car structure in 4, it is characterised in that: the pressed core is alloy
Core.
10. according to claim 1 to any cold upsetting die of car structure in 4, it is characterised in that: the die body includes die cap
(1), rear cover (2), die-cushion (3) and top stick, the top stick are set in die-cushion (3), and the rear cover (2) is connected to die-cushion (3)
Lower part, the die cap (1) is nested on the top of die-cushion (3), the lower part of the die cap (1) and the upper side wall screw thread of rear cover (2)
Be connected, the top of the die cap (1) is provided with die cap through-hole, between the side wall and die-cushion top surface of the die cap through-hole formed at
Type chamber (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130514.3A CN108941416A (en) | 2018-09-27 | 2018-09-27 | A kind of cold upsetting die of car structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130514.3A CN108941416A (en) | 2018-09-27 | 2018-09-27 | A kind of cold upsetting die of car structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108941416A true CN108941416A (en) | 2018-12-07 |
Family
ID=64471972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811130514.3A Pending CN108941416A (en) | 2018-09-27 | 2018-09-27 | A kind of cold upsetting die of car structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108941416A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756536A (en) * | 2020-12-29 | 2021-05-07 | 铭昊汽车金属零部件(广州)有限公司 | Forging die for automobile step parts |
| CN112916780A (en) * | 2020-12-29 | 2021-06-08 | 铭昊汽车金属零部件(广州)有限公司 | Automobile parts cold-heading forming die |
| CN114054660A (en) * | 2021-11-15 | 2022-02-18 | 河南航天精工制造有限公司 | Combined die for cold heading cap rod piece |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202123185U (en) * | 2011-06-15 | 2012-01-25 | 浙江振华紧固件有限公司 | Cold heading forming mold |
| CN102806296A (en) * | 2012-07-27 | 2012-12-05 | 苏州市东立机械有限公司 | Female die structure of bolt assembly |
| CN202667527U (en) * | 2012-05-30 | 2013-01-16 | 浙江振华紧固件有限公司 | Cold heading forming mold |
| CN205043062U (en) * | 2015-09-17 | 2016-02-24 | 河南航天精工制造有限公司 | Hot -forging dies utensil and go up mould thereof |
| CN206702142U (en) * | 2017-05-19 | 2017-12-05 | 三门通顺铆钉有限公司 | Cold upsetting die of car |
| CN208991670U (en) * | 2018-09-27 | 2019-06-18 | 舟山市7412工厂 | A kind of cold upsetting die of car structure |
-
2018
- 2018-09-27 CN CN201811130514.3A patent/CN108941416A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202123185U (en) * | 2011-06-15 | 2012-01-25 | 浙江振华紧固件有限公司 | Cold heading forming mold |
| CN202667527U (en) * | 2012-05-30 | 2013-01-16 | 浙江振华紧固件有限公司 | Cold heading forming mold |
| CN102806296A (en) * | 2012-07-27 | 2012-12-05 | 苏州市东立机械有限公司 | Female die structure of bolt assembly |
| CN205043062U (en) * | 2015-09-17 | 2016-02-24 | 河南航天精工制造有限公司 | Hot -forging dies utensil and go up mould thereof |
| CN206702142U (en) * | 2017-05-19 | 2017-12-05 | 三门通顺铆钉有限公司 | Cold upsetting die of car |
| CN208991670U (en) * | 2018-09-27 | 2019-06-18 | 舟山市7412工厂 | A kind of cold upsetting die of car structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756536A (en) * | 2020-12-29 | 2021-05-07 | 铭昊汽车金属零部件(广州)有限公司 | Forging die for automobile step parts |
| CN112916780A (en) * | 2020-12-29 | 2021-06-08 | 铭昊汽车金属零部件(广州)有限公司 | Automobile parts cold-heading forming die |
| CN114054660A (en) * | 2021-11-15 | 2022-02-18 | 河南航天精工制造有限公司 | Combined die for cold heading cap rod piece |
| CN114054660B (en) * | 2021-11-15 | 2024-05-17 | 河南航天精工制造有限公司 | Combined die for cold heading capped rod piece |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |