CN107649679A - A kind of powder metallurgy bar frame mold - Google Patents
A kind of powder metallurgy bar frame mold Download PDFInfo
- Publication number
- CN107649679A CN107649679A CN201710801702.3A CN201710801702A CN107649679A CN 107649679 A CN107649679 A CN 107649679A CN 201710801702 A CN201710801702 A CN 201710801702A CN 107649679 A CN107649679 A CN 107649679A
- Authority
- CN
- China
- Prior art keywords
- undershoot
- holding tank
- punch die
- upper punching
- locating slot
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
- B22F2003/033—Press-moulding apparatus therefor with multiple punches working in the same direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of powder metallurgy bar frame mold, including upper punching, undershoot and die sleeve, undershoot is located in die sleeve, provided with the first holding tank that cross section is more than half circular arc in undershoot, under rush to the first locating slot for being additionally provided with and the first holding tank being extended to from top surface, upper punching is arranged in the first locating slot, and the bottom surface of upper punching is provided with the second holding tank that cross section is smaller part circular arc, and the first holding tank and the second holding tank composition cross section are circular indent；Undershoot includes left half punch die and right half punch die, and left half punch die and right half punch die are symmetrical arranged on crossing the vertical plane of the first holding tank axis.It is an advantage of the invention that：Rushed under whole first holding tank to angle of circumference can exceed 180 degree, so as to cooperatively form a full circle with upper punching, also there was only the splicing seams of very little in the place that upper punching and undershoot combine, it again may be by grinding machine elimination, therefore the processing step of turning is eliminated, while the wastage of raw material is greatly reduced.
Description
Technical field
The present invention relates to a kind of powder metallurgy bar frame mold.
Background technology
When powder metallurgy bar manufactures, it is required for powder pressing forming using mould, as shown in figure 1, existing powder
Metallurgical bar frame mold includes die sleeve 2, upper punching 1 and undershoot 3, is provided with locating slot on die sleeve, the top of undershoot is inserted from bottom
Enter in locating slot, be then placed in the powder metallurgy powder of appropriate amount, inserted by upper punching from the top of locating slot, upper punching and undershoot
Deep-slotted chip breaker is equipped with relative face, the cross section of powder metallurgy bar 12 of finished product is generally circular in cross section, due to consider moving back mould
Problem, rush above and the deep-slotted chip breaker of undershoot to angle of circumference can not be 180 degree, be pressed into as shown in Fig. 2 this is resulted in
Respectively there is one section of Harvard band on the both sides of bar after type, and bar will enter grinding machine and process after finalization of the manufacture, but due to this two Kazakhstan
Buddhist band can not rely on grinding machine to remove, it is necessary to and increase by one of turning process, cause processing step to increase, while this Liang Tiao Harvards band
Also excessive raw material is occupied, causes wastage of material.
The content of the invention
It is an object of the invention to provide a kind of powder metallurgy bar frame mold, existing powder metallurgy can effectively solve the problem that
Bar frame mold can produce Harvard band after bar is suppressed, and add post-production process, the problem of also resulting in wastage of material.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：A kind of powder metallurgy bar
Frame mold, including upper punching, undershoot and die sleeve, the undershoot are located in die sleeve, provided with cross section are more than half in the undershoot
First holding tank of circular arc, the first locating slot for being additionally provided with and the first holding tank being extended to from top surface, the upper punching are rushed under described
It is arranged in the first locating slot, the bottom surface of the upper punching is provided with the second holding tank that cross section is smaller part circular arc, and described first holds
Receive groove and the second holding tank composition cross section is circular indent；
The undershoot includes left half punch die and right half punch die, and left half punch die and right half punch die are on crossing the first holding tank
The vertical plane of axis is symmetrical arranged.
Preferably, angle of circumference corresponding to the first holding tank cross section is 180 °~250 °；Angle is unfavorable for greatly very much filling out
Powder is filled, is also unfavorable for the compression of powder, easily causes bar Density inhomogeneity, angle is too small to cause punching to be stripped.
Preferably, the second locating slot is provided with the die sleeve, second locating slot is groove, and the top of the undershoot covers
It is located in the second locating slot, the width of the bottom of the undershoot is less than the width on undershoot top, and the height on the undershoot top is small
In the depth of the second locating slot；Second locating slot is positioned and fixed to left half punch die and right half punch die, and the bottom of undershoot
Width be less than undershoot upper width, and the height on undershoot top is less than the depth of the second locating slot, then when be stripped only
Die sleeve is pressed downward, allows die sleeve to move downward just energy fast demoulding with respect to undershoot, saves demoulding time.
Compared with prior art, it is an advantage of the invention that：Undershoot is divided into symmetrical left half punch die and right half punch die so that
Rushed under whole first holding tank to angle of circumference can exceed 180 degree, so as to cooperatively form a full circle with upper rush, and left
Half punch die and right half punch die can be divided into two and half punch dies after undershoot completes using wire cutting, and two and half punch dies coordinate
Precision is high, and billet surface after pressing can't be left a trace or the vestige of very little can be eliminated using grinding machine, and upper punching
The place combined with undershoot also only has the splicing seams of very little, again may be by grinding machine elimination, therefore the technique for eliminating turning
Step, while the wastage of raw material is greatly reduced.
Brief description of the drawings
Fig. 1 is existing powder metallurgy bar frame mold sectional view；
Fig. 2 is the bar sectional view of existing powder metallurgy bar frame mold compacting；
Fig. 3 is powder metallurgy bar frame mold sectional view of the present invention；
Fig. 4 is the bar sectional view of powder metallurgy bar frame mold of the present invention compacting；
Fig. 5 is the sectional view of die sleeve in the present invention；
Fig. 6 is the sectional view of undershoot in the present invention；
Fig. 7 is the sectional view of upper punching in the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instruction such as " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification is retouched
State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
It is a kind of embodiment of powder metallurgy bar frame mold of the present invention refering to Fig. 3, a kind of powder metallurgy bar framework
Mould, including upper punching 1, undershoot 3, die sleeve 2 and limiter 4.
As shown in fig. 7, the bottom surface of upper punching 1 is provided with the second holding tank 7 that cross section is smaller part circular arc；
As shown in Fig. 3, Fig. 6, the top surface of undershoot 3 is provided with the first holding tank 5 that cross section is more than half circular arc, and first accommodates
For circular indent 10, angle of circumference corresponding to the cross section of the first holding tank 5 is 180 ° for the holding tank 7 of groove 5 and second composition cross section
~250 °, 240 ° are preferably selected, the angle of circumference corresponding to the second holding tank 7 of so upper punching 1 is just 120 °, the bottom of undershoot 3
Width be less than the width on the top of undershoot 3, undershoot 3 is symmetrically divided into left half punch die 8 and the right side along the vertical plane for crossing the axis of the first holding tank 5
Half punch die 9, the punch die 8 of a left side half and right half punch die 9 are split after undershoot 3 completes using wire cutting, to ensure minimum gap；
As shown in Fig. 3, Fig. 5, the second locating slot 11 is provided with die sleeve 2, the second locating slot 11 is groove setting up and down, under
The height for rushing 3 tops is less than the depth of the second locating slot 11.
Limiter 4 is placed in the horizontal plane, die sleeve 2 is erected on limiter 4, and limiter 4 can not block the second positioning
11 mouthfuls of groove, the punch die 8 of a left side half and right half punch die 9 insert the second locating slot 11 after merging, and keep the opening upwards of the first holding tank 5, past
Addition powder metallurgy bar in second locating slot 11, then inserts upper punching 1 from the top of the first locating slot 6, and the second of upper punching 1
Open Side Down for holding tank 7,2-3s is kept after being flattened using press, then pressure release, and limiter 4 is extracted out, and is placed on die sleeve 2,
Limiter 4 can not equally block the second locating slot 11, press limiter 4 using press, allow undershoot 3 and die sleeve 2 to depart from, then a left side half
Punch die 8 and right half punch die 9 separate and take out upper punching 1, obtain product, as shown in figure 4, last product is after quadruplication,
Only there are two raised lines in upper punching 1 and the junction of undershoot 3, as long as just can be by product cavetto using grinding machine.
Undershoot 3 is divided for the symmetrical punch die 8 of a left side half and right half punch die 9 so that in whole undershoot 3 first holding tank 5 pair
Angle of circumference can exceed 180 degree, so as to cooperatively form a full circle with upper punching 1, and the punch die 8 of a left side half and right half punch die 9 can be with
Two and half punch dies are divided into using wire cutting after undershoot 3 completes, two and half punch die fit precision are high, rod after pressing
Expect that 12 surfaces can't leave a trace or the vestige of very little can eliminate using grinding machine, and the place that upper punching 1 and undershoot 3 combine
Also there was only the splicing seams of very little, again may be by grinding machine elimination, therefore eliminate the processing step of turning, be greatly reduced simultaneously
The wastage of raw material.
The specific embodiment of the present invention is the foregoing is only, but the technical characteristic of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the present invention by the change or modification made.
Claims (3)
1. a kind of powder metallurgy bar frame mold, including upper punching (1), undershoot (3) and die sleeve (2), it is characterised in that：Under described
Punching (3) is located in die sleeve (2), the first holding tank (5) in the undershoot (3) provided with cross section for more than half circular arc, under described
The first locating slot (6) that the first holding tank (5) is extended to from top surface is additionally provided with punching (3), it is fixed that the upper punching (1) is arranged on first
In position groove (6), the bottom surface of the upper punching (1) is provided with the second holding tank (7) that cross section is smaller part circular arc, first holding tank
(5) and the second holding tank (7) composition cross section is circular indent (10)；The undershoot (3) includes left half punch die (8) and right half
Punch die (9), left half punch die (8) and right half punch die (9) are symmetrical arranged on crossing the vertical plane of the first holding tank (5) axis.
A kind of 2. powder metallurgy bar frame mold as claimed in claim 1, it is characterised in that：First holding tank (5)
Angle of circumference corresponding to cross section is 180 °~250 °.
A kind of 3. powder metallurgy bar frame mold as claimed in claim 1, it is characterised in that：It is provided with the die sleeve (2)
Second locating slot (11), second locating slot (11) are groove, and the top of the undershoot (3) is set in the second locating slot (11)
Interior, the width of the bottom of the undershoot (3) is less than the width on undershoot (3) top, and the height on undershoot (3) top is less than second
The depth of locating slot (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801702.3A CN107649679B (en) | 2017-09-07 | 2017-09-07 | Powder metallurgy bar frame mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801702.3A CN107649679B (en) | 2017-09-07 | 2017-09-07 | Powder metallurgy bar frame mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107649679A true CN107649679A (en) | 2018-02-02 |
| CN107649679B CN107649679B (en) | 2023-08-22 |
Family
ID=61128048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710801702.3A Active CN107649679B (en) | 2017-09-07 | 2017-09-07 | Powder metallurgy bar frame mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107649679B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681963A (en) * | 2021-08-20 | 2021-11-23 | 山西江淮重工有限责任公司 | Bidirectional compression molding device and method for powdery material |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11192597A (en) * | 1997-12-26 | 1999-07-21 | Hitachi Powdered Metals Co Ltd | Molding method of green compact |
| JP2005240060A (en) * | 2004-02-24 | 2005-09-08 | Tdk Corp | Compact, in-magnetic-field compacting apparatus, and method for manufacturing magnetostrictive element |
| CN1915654A (en) * | 2006-09-01 | 2007-02-21 | 苏州江钻新锐硬质合金有限公司 | Standing mold pressing die for bars in hard alloy, and manufacturing method |
| CN102421553A (en) * | 2009-05-13 | 2012-04-18 | 日立粉末冶金株式会社 | Substantially cylindrical powder compact and powder die device |
| CN102847910A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Cylindrical-tooth mould |
| CN203401745U (en) * | 2013-07-24 | 2014-01-22 | 惠州铂科磁材有限公司 | R-rod die special for magnetic powder core |
| CN204892943U (en) * | 2015-07-20 | 2015-12-23 | 天津邦特磁性材料有限公司 | Compacting tool set of bonding neodymium iron boron magnetism body |
| JP2016039236A (en) * | 2014-08-07 | 2016-03-22 | 住友電気工業株式会社 | Powder magnetic core and coil component |
| JP2016039235A (en) * | 2014-08-07 | 2016-03-22 | 住友電気工業株式会社 | Powder-compact magnetic core manufacturing method |
| JP2016188402A (en) * | 2015-03-30 | 2016-11-04 | 日立金属株式会社 | Press device and magnet production method |
| CN207170946U (en) * | 2017-09-07 | 2018-04-03 | 浙江恒成硬质合金有限公司 | A kind of powder metallurgy bar frame mold |
-
2017
- 2017-09-07 CN CN201710801702.3A patent/CN107649679B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11192597A (en) * | 1997-12-26 | 1999-07-21 | Hitachi Powdered Metals Co Ltd | Molding method of green compact |
| JP2005240060A (en) * | 2004-02-24 | 2005-09-08 | Tdk Corp | Compact, in-magnetic-field compacting apparatus, and method for manufacturing magnetostrictive element |
| CN1915654A (en) * | 2006-09-01 | 2007-02-21 | 苏州江钻新锐硬质合金有限公司 | Standing mold pressing die for bars in hard alloy, and manufacturing method |
| CN102421553A (en) * | 2009-05-13 | 2012-04-18 | 日立粉末冶金株式会社 | Substantially cylindrical powder compact and powder die device |
| CN102847910A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Cylindrical-tooth mould |
| CN203401745U (en) * | 2013-07-24 | 2014-01-22 | 惠州铂科磁材有限公司 | R-rod die special for magnetic powder core |
| JP2016039236A (en) * | 2014-08-07 | 2016-03-22 | 住友電気工業株式会社 | Powder magnetic core and coil component |
| JP2016039235A (en) * | 2014-08-07 | 2016-03-22 | 住友電気工業株式会社 | Powder-compact magnetic core manufacturing method |
| JP2016188402A (en) * | 2015-03-30 | 2016-11-04 | 日立金属株式会社 | Press device and magnet production method |
| CN204892943U (en) * | 2015-07-20 | 2015-12-23 | 天津邦特磁性材料有限公司 | Compacting tool set of bonding neodymium iron boron magnetism body |
| CN207170946U (en) * | 2017-09-07 | 2018-04-03 | 浙江恒成硬质合金有限公司 | A kind of powder metallurgy bar frame mold |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681963A (en) * | 2021-08-20 | 2021-11-23 | 山西江淮重工有限责任公司 | Bidirectional compression molding device and method for powdery material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107649679B (en) | 2023-08-22 |
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