CN202726048U - Power metallurgic forming die for machining stepped part with inversed hole - Google Patents

Power metallurgic forming die for machining stepped part with inversed hole Download PDF

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Publication number
CN202726048U
CN202726048U CN 201220436172 CN201220436172U CN202726048U CN 202726048 U CN202726048 U CN 202726048U CN 201220436172 CN201220436172 CN 201220436172 CN 201220436172 U CN201220436172 U CN 201220436172U CN 202726048 U CN202726048 U CN 202726048U
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CN
China
Prior art keywords
plug
core rod
power
hole
connecting plate
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.)
Expired - Fee Related
Application number
CN 201220436172
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Chinese (zh)
Inventor
冯捷
赵善杰
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.)
Guangdong Dong Mu new material Co., Ltd
Original Assignee
NBTM (JIANGMEN) POWDER METALLURGY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN 201220436172 priority Critical patent/CN202726048U/en
Application granted granted Critical
Publication of CN202726048U publication Critical patent/CN202726048U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a power metallurgic forming die for machining a stepped part with an inversed hole. The power metallurgic forming die comprises a female die, an upper punch, a first lower punch and a second lower punch which define a cavity, and a lower core rod which forms an axial hole, wherein the upper punch is installed on a stamping plate, the lower core rod is fixed on a die frame through a core rod connecting plate, the power metallurgic forming die further comprises an upper core rod which is installed on a second upper stamping plate, the radial cross section of the upper core rod is larger than the radial cross section of the lower core rod, and an air cylinder which drives the lower core rod to move along the stamping direction is arranged between the lower core rod and the core rod connecting plate. The stepped power metallurgic part with the inversed hole can be pressed at one time, a hole which is gradually reduced from top to bottom can be directly formed in the part, the subsequent machining is not needed, and the stability and production efficiency are higher than those of the conventional forming method; and the power metallurgic forming die is simple and practicable in structure, and the purposes of lowering the machining cost and shortening the production period are realized.

Description

A kind of powder metallurgy forming mold of step parts of processing belt inverted apertures
Technical field
The utility model relates to a kind of powder metallurgy forming mold.
Background technology
Compressing the referring to of powder metallurgy places pressing mold with mixture of powders, by stamping body of powder exerted pressure, and makes it to be shaped, and subsequently release is deviate from pressed compact again from mould.The general name of used tool when the used mould bases of Simulations of Powder Metallurgy Compaction is shaping, consisted of by mould, die supports and mold and connector, mould all is to be made of former, upper and lower stamping and plug basically, former be used for formation of parts radially namely perpendicular to the shape and size of pressing direction, decide the size of part height direction, plug then to be used for the axial hole that is shaped by means of the motion of upper and lower stamping.
At present, traditional powder metallurgy formation technology is because the restriction of device structure, can only forming belt the step parts in hole forward, when the step parts forward that namely processes is placed, its through hole is in the same size up and down, and perhaps the cross-sectional area above the through hole is little, and following hole cross-sectional area is large.For the step parts that up big and down small class inverted apertures is arranged, all be to adopt first direct forming aperture usually, the method for machining macropore because step is more, is used different equipment and cooperate processing again, so the less stable of processing, cost also can correspondingly increase.
Summary of the invention
For the direct deficiency of the step parts of processing belt inverted apertures of the power metallurgy equipment that overcomes prior art, the utility model provides a kind of powder metallurgy forming mold of step parts of processing belt inverted apertures.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of powder metallurgy forming mold of step parts of processing belt inverted apertures, comprise the former, upper punch, the first bottom punch and the second bottom punch that surround die cavity, and the lower plug that forms axial hole, described upper punch is installed on the stamping plate, described lower plug is fixed on the mould bases by the plug connecting plate, also comprise the upper plug that is installed on the two stamping plates, described upper plug radial cross-section is long-pending long-pending greater than lower plug radial cross-section, is provided with between described lower plug and the plug connecting plate to drive the cylinder that lower plug moves along pressing direction.
Further, described cylinder connects the plug connecting plate by change-over panel.
Further, described plug connecting plate comprises plug pressing plate and plug base plate.
The beneficial effects of the utility model are: can disposablely suppress the step powdered metal parts with inverted apertures, but the up big and down small hole direct forming of part does not need follow-up machining, its stability and production efficiency all are higher than traditional manufacturing process; Simple and practical, the improvement by to the compacting press die takes full advantage of the press accuracy of action, and up and down two holes of formation of parts have reached the purpose that cuts down finished cost, shortens the manufacturing cycle simultaneously.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model filling condition schematic diagram;
Fig. 2 is the utility model compacting view;
Fig. 3 is the overall structure schematic diagram of the utility model filling condition;
Fig. 4 is the overall structure schematic diagram of the utility model demoulding state;
Fig. 5 is the structural representation of specific embodiment part to be processed;
Fig. 6 is the top view of specific embodiment part to be processed;
Fig. 7 is the cutaway view of specific embodiment part to be processed.
The specific embodiment
Referring to figs. 1 through Fig. 7, the powder metallurgy forming mold of the step parts of a kind of processing belt inverted apertures of the present utility model, comprise the former 1 that surrounds die cavity, upper punch 2, the first bottom punch 3 and the second bottom punch 4, and the lower plug 5 that forms axial hole, described upper punch 2 is installed on the stamping plate 91, described lower plug 5 is fixed on the mould bases 9 by plug connecting plate 6, also comprise the upper plug 7 that is installed on the two stamping plates 92, described upper plug 7 radial cross-sections are long-pending long-pending greater than lower plug 5 radial cross-sections, are provided with between described lower plug 5 and the plug connecting plate 6 to drive the cylinder 8 that lower plug 5 moves along pressing direction.
Further, described cylinder 8 connects plug connecting plate 6 by change-over panel.
Further, described plug connecting plate 6 comprises plug pressing plate and plug base plate.
In this specific embodiment, step parts for the processing belt inverted apertures, mould is selected to be installed on the powder metallurgy C swaging machine, with the supreme stamping plate 91 of transmission of power and upper two stamping plates 92, and each mould is installed on the corresponding template C swaging machine and therewith motion by crank and rocker mechanism.A upper stamping plate 91, upper two stamping plates 92 belong to mould bases 9, existing technology, when flexible extrusion molding technique, need to use simultaneously a stamping plate 91 and on two stamping plates 92, its effect acts on similar with next stamping plate 93, lower two stamping plates 94, but self-movement between the two, respectively control.
Utilize the characteristics of powder metallurgy C type compacting press, install plug 7 at upper two stamping plates 92, and a cylinder 8 is installed between the plug connecting plate 6 of press and lower plug 5, therefore, can realize the self-movement of lower plug 5 on plug connecting plate 6 by control break-make gas.Because cylinder 8 can not directly be installed with plug connecting plate 6 and be connected, so need a change-over panel that is used for connecting that both are connected, change-over panel mainly converts the mounting means of plug connecting plate 6 to the mounting means of cylinder 8.
In dress powder process, cylinder 8 is ventilated always and is made lower plug 5 be in propradation, in pressing process, because upper two stamping plates, 92 downward pressures of press are greater than the unlifting pressure of cylinder 8, force plug 7 to contact the shaping position that also moves downward to part with lower plug 5, the epimere macropore of upper plug 7 formation of parts, the hypomere aperture of lower plug 5 formation of parts, thus can disposablely suppress step powdered metal parts with inverted apertures.By this manufacturing process, but the up big and down small hole direct forming of part does not need follow-up machining, and its stability and production efficiency all are higher than traditional manufacturing process.
This product structure is simple and practical, and the improvement by to the compacting press die takes full advantage of the press accuracy of action, and up and down two holes of formation of parts reach simultaneously and exempt the purpose that processing cost shortens the manufacturing cycle simultaneously.
Certainly, the utility model can also have other structural distortion except above-mentioned embodiment, and these equivalent technical solutions also should be within its protection domain.

Claims (3)

1. the powder metallurgy forming mold of the step parts of a processing belt inverted apertures, comprise the former (1) that surrounds die cavity, upper punch (2), the first bottom punch (3) and the second bottom punch (4), and the lower plug (5) that forms axial hole, described upper punch (2) is installed on the stamping plate, described lower plug (5) is fixed on the mould bases by plug connecting plate (6), it is characterized in that: also comprise the upper plug (7) that is installed on the two stamping plates, described upper plug (7) radial cross-section is long-pending long-pending greater than lower plug (5) radial cross-section, is provided with between described lower plug (5) and the plug connecting plate (6) to drive the cylinder (8) that lower plug (5) moves along pressing direction.
2. the powder metallurgy forming mold of the step parts of a kind of processing belt inverted apertures according to claim 1 is characterized in that: described cylinder (8) connects plug connecting plate (6) by change-over panel.
3. the powder metallurgy forming mold of the step parts of a kind of processing belt inverted apertures according to claim 1, it is characterized in that: described plug connecting plate (6) comprises plug pressing plate and plug base plate.
CN 201220436172 2012-08-30 2012-08-30 Power metallurgic forming die for machining stepped part with inversed hole Expired - Fee Related CN202726048U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220436172 CN202726048U (en) 2012-08-30 2012-08-30 Power metallurgic forming die for machining stepped part with inversed hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220436172 CN202726048U (en) 2012-08-30 2012-08-30 Power metallurgic forming die for machining stepped part with inversed hole

Publications (1)

Publication Number Publication Date
CN202726048U true CN202726048U (en) 2013-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220436172 Expired - Fee Related CN202726048U (en) 2012-08-30 2012-08-30 Power metallurgic forming die for machining stepped part with inversed hole

Country Status (1)

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CN (1) CN202726048U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105458250A (en) * 2015-12-23 2016-04-06 扬州博众机械设备有限公司 Powder forming machine and operation method thereof
CN113134609A (en) * 2021-04-02 2021-07-20 常州市知宇粉末冶金有限公司 Oil-retaining bearing shaping die

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105458250A (en) * 2015-12-23 2016-04-06 扬州博众机械设备有限公司 Powder forming machine and operation method thereof
CN113134609A (en) * 2021-04-02 2021-07-20 常州市知宇粉末冶金有限公司 Oil-retaining bearing shaping die
CN113134609B (en) * 2021-04-02 2024-01-09 常州市知宇粉末冶金有限公司 Shaping die for oil-retaining bearing

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: GUANGDONG NBTM NEW MATERIALS CO., LTD.

Free format text: FORMER OWNER: NBTM (JIANGMEN) POWDER METALLURGY CO., LTD.

Effective date: 20150615

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20150615

Address after: The three road Pengjiang District Guangdong 529000 Jiangmen province Duruan Mian No. 8 wells

Patentee after: Guangdong Dong Mu new material Co., Ltd

Address before: 529050, Hongda Road 9, Pengjiang District, Guangdong, Jiangmen

Patentee before: NBTM (JiangMen) Powder Metallurgy Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20180830

CF01 Termination of patent right due to non-payment of annual fee