CN2220334Y - Powder matallurgy mould mechanism - Google Patents
Powder matallurgy mould mechanism Download PDFInfo
- Publication number
- CN2220334Y CN2220334Y CN 95204923 CN95204923U CN2220334Y CN 2220334 Y CN2220334 Y CN 2220334Y CN 95204923 CN95204923 CN 95204923 CN 95204923 U CN95204923 U CN 95204923U CN 2220334 Y CN2220334 Y CN 2220334Y
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- China
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- positioning module
- core bar
- fixed
- utility
- guide pillar
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Abstract
The utility model belongs to a forming mechanism used in the working process of manufacturing powder metallurgy composite products. The utility model is a multipurpose mould frame which is suitable for manufacturing bimetallic products, namely forming a powder metallurgy sintering coating on the inner surface of a part matrix, and the utility model comprises an upper and a lower mold plates, a floatation mold plate, a guide post, a spring, a work piece positioning mold and a forming core rod. The utility model is characterized in that the lower part of the position mold 13 is allocated with a friction adjusting device, the two ends of the forming core rod 10 are columnar, the middle part is taper, a central line included angle alpha is 1-10 DEG between a conical working surface and the core bar, and the effect is the best when the included angle is 2-7 DEG.
Description
The utility model belongs to the shaping mechanism that uses in the metallurgical composite article process that makes powder.
The preparation method of existing powder metallurgy composite article has technology such as spraying, built-up welding, the processing of bimetallic plates stamping-out, double layer of powder compacting.Spraying or built-up welding all are the outer surface covering layer of metal layers at original part, can improve the performance of original part material, but its weak point are that process conditions and coating quality are restive, and auxiliary material consumption is many, only is fit to single-piece or partial operation.Stamping-out processing is to adopt the bimetallic plates punch forming, and as bi-metal shaft bushing DU bearing, its weak point is that production process is many, the technological requirement height, so waste of raw materials is big, the production cost height.Patent of invention CN1056832A, CN1061367A are disclosed to be the manufacture craft of iron, copper powder metallurgy composite article, and the employing copper powder loads at interval with iron powder, vertical compression moulding, and the shaping mould of its use comprises former, core bar, upper punch, bottom punch.Its core bar is a cylindricality, and the metal dust material is filled between former and the core bar, and press power is added on two stampings in opposite directions during moulding, and part of every moulding need be suppressed and two course of exerting pressure of the demoulding less.The drawing method of above-mentioned powder metallurgy only is applicable to full powdered metal parts, and can not form sintered combined layer on the inner surface of forming part matrix.
The purpose of this utility model provides a kind of shaping mechanism of the metallurgical composite bed that makes powder on the inner surface of part base solid.
The utility model is achieved in that
A kind of Powder metallurgic forming machines structure is made up of upper and lower template, the template of floating, guide pillar, spring.Be fixed with pressure head (8) on the cope match-plate pattern (1), be fixed with guide pillar (3) on the lower bolster (17), be with floating spring (19) on the guide pillar (3), the template (5) of floating is positioned at the top of described spring (19), fluctuate along guide pillar (9) under pressure, workpiece positioning module (13) is fixed on unsteady template (5) center, and moulding core bar (10) is positioned at the central axis position of positioning module (13), it is characterized in that positioning module (13) bottom is with the friction adjustment device; Moulding core bar (10) two ends are column, and the middle part is taper, and taper work face and core bar center line angle α are 1～10 °, best results in the time of 2～7 °.
The friction adjustment mechanism of positioning module (13) bottom is following structure: positioning module (13) inboard, bottom is embedded with friction plate (15), and friction plate (15) back is equipped with and is passed the adjustment screw (16) that positioning module (13) is gone up the hole.Friction adjustment mechanism can also be the list structure that positioning module (13) bottom has vertical sulculus, and its outer ring is fixed with rubber (24), and going up hoop at described rubber (24) has steel band (22), and the termination of steel band (22) is fixed with adjustment screw (23).Positioning module (13) can be one with the list structure that the bottom has vertical sulculus, also can be split up into upper and lower two parts.
Compare with background technology, the beneficial effects of the utility model are:
1, can be on the inner surface of forming part matrix the metallurgical composite bed of moulding and multiple press-powder end, can save precious metal material like this, reduce production costs, improve product properties.
2, simple in structure, easy to use, the high efficiency of the utility model, the desirable workpiece of exerting pressure once helps realizing full-automatic production, alleviates labor strength.
3, the utility model also can use when the metallurgical part shaping of ordinary powder (finishing).
Fig. 1 is a structural representation of the present utility model.
The left and right symmetry of structure among the figure, left part is the SBR of exerting pressure, right part is for exerting pressure or exerting pressure done state.
Fig. 2 is moulding core bar (a 10) structural representation.
Fig. 3 is the friction adjustment apparatus structure schematic diagram of positioning module among the embodiment 2 (13) bottom.
Be described further below in conjunction with embodiment.
Embodiment 1:
The Powder metallurgic forming machines structure is worked under hydraulic press pressure.Cope match-plate pattern of mechanism (1) and lower bolster (17) are separately fixed at below the slide block of hydraulic press and on the base, compacting pressure head (8) is fixed on the cope match-plate pattern (1) by pressing head seat (7), and moves up and down with the hydraulic press slide block.Be fixed with guide pillar (3) on the lower bolster (17), and bear the press power that reaches shaping core bar (10) and positioning module supporting base (20) from pressure head (8) by workpiece (12), workpiece (14).Workpiece positioning module (13) places on the unsteady template (5).Relocation mechanism is made up of guide pillar (3), guide pin bushing (4), spring (19) the spring seat of honour (6), spring lower seat (18) and stop collar (2).
Curved lever (10) two ends are cylinder, and the middle part is cone.The center line angle α of taper work face and core bar (10) is 4 °.Friction adjustment device in positioning module (13) bottom is: positioning module (13) inboard, bottom is embedded with friction plate (15), and friction plate (15) back is equipped with and is passed the adjustment screw (16) that positioning module (13) is gone up the hole.
The course of work of the present utility model is:
Insert between slit between workpiece (12) and the moulding core bar (10) with cushion rubber or a little fabric earlier, sew to stop up metal dust material (11), also the available metal ring stops up and locatees, and concentricity is preferably arranged when initial in the hope of coating and matrix.Then enter the operate as normal circulation.Preformed workpiece (12) is packed in the positioning module (13), and the two is the gap and is slidingly matched.The metal powder material of inserting between moulding core bar (10) and workpiece (14) (11) is because core middle part conical surface effect pressurized, there is very big frictional force, makes powder (11) the relative lower bolster (17) under the SBR of exerting pressure in moulding core bar (10), workpiece (12,14) and the slit of packing into unsettled.
Sequence of movement of the present utility model is:
A, dress workpiece (12) are in positioning module (13).
B, move into dress powder box (9) metal powder material (11) of between workpiece (12) and moulding core bar (10), packing into.
C, remove the dress powder box (9).
D, the compacting pressure head (8) that descends apply pressure to workpiece (12), reach workpiece (14).
E, because the effect of frictional force, positioning module (13) together glides along guide pillar (13) with unsteady template (5).
F, to the appropriate location, positioning module (13) touches mutually with supporting base (20), simultaneously moulding core bar (10) falls to lower bolster (17), this moment, each floating part all stopped to float downward.
G, pressure head (8) continue to exert pressure, and workpiece (12), (14) move down a Workpiece length synchronously.By press ram travel switch control and spacing.
Pressure head (8) is lifted in h, release, and each part that floats returns to original position, and can take out the workpiece (21) that enters the demoulding position this moment.
Putting into the workpiece powder of packing into once more, exert pressure, pickup, is second cyclic process.
The utility model can also use when the shaping of ordinary powder metallurgy part in addition.Its method is removal moulding core bar (10) or uses the shaping core bar instead that positioning module (13) changes to the shaping former and can realize ordinary powder metallurgy pipe box class part is carried out finishing internal diameter, finishing external diameter, the outer hoop outside interior, interior the expanding, and reaches the outer interior shaping processing of expanding of binding round.
Embodiment 2:
The primary structure and the course of work are with embodiment 1, and its difference is:
1, the taper work face of moulding core bar (10) and center line angle α are 2.5 °.
2, positioning module (13) bottom is the list structure that has vertical sulculus, and its outer ring is fixed with rubber (24), and going up hoop at described rubber (24) has steel band (22), and the termination of steel band (22) is fixed with adjustment screw (23).The top of positioning module (13) also can be processed as the two parts that separate with the bottom that has vertical sulculus list structure.
Claims (4)
1, a kind of Powder metallurgic forming machines structure, form by upper and lower template, the template of floating, guide pillar, spring, be fixed with pressure head (8) on the cope match-plate pattern (1), be fixed with guide pillar (3) on the lower bolster (17), be with floating spring (19) on the guide pillar (3), the template (5) of floating is positioned at the top of described spring (19), fluctuate along guide pillar (9) under pressure, workpiece positioning module (13) is fixed on unsteady template (5) center, moulding core bar (10) is positioned at the central axis position of positioning module (13), it is characterized in that:
A, in positioning module (13) bottom with the friction adjustment device;
B, moulding core bar (10) two ends are column, and the middle part is taper, and taper work face and core bar center line are angle α.
2, Powder metallurgic forming machines structure according to claim 1, the friction adjustment device that it is characterized in that positioning module (13) bottom is: positioning module (13) inboard, bottom is embedded with friction plate (15), and friction plate (15) back is equipped with and is passed the adjustment screw (16) that positioning module (13) is gone up the hole.
3, Powder metallurgic forming machines structure according to claim 1, the friction adjustment device that it is characterized in that positioning module (13) bottom is: positioning module (13) bottom is the list structure that has vertical sulculus, its outer ring is fixed with rubber (24), going up hoop at described rubber (24) has steel band (22), and the termination of steel band (22) is fixed with adjustment screw (23).
4, Powder metallurgic forming machines structure according to claim 1 is characterized in that the taper work face of moulding core bar (10) and core bar center line angle α are 1～10 °, best results in the time of 2～7 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204923 CN2220334Y (en) | 1995-03-08 | 1995-03-08 | Powder matallurgy mould mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204923 CN2220334Y (en) | 1995-03-08 | 1995-03-08 | Powder matallurgy mould mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220334Y true CN2220334Y (en) | 1996-02-21 |
Family
ID=33857291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95204923 Expired - Fee Related CN2220334Y (en) | 1995-03-08 | 1995-03-08 | Powder matallurgy mould mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220334Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717075A (en) * | 2012-06-21 | 2012-10-10 | 黄彬 | Automatic powder forming die carrier based on powder metallurgy press and implementation method thereof |
| CN106270521A (en) * | 2016-08-30 | 2017-01-04 | 佛山市顺德区然华精密金属制品有限公司 | powder metallurgy press mandrel holder rotating mechanism |
-
1995
- 1995-03-08 CN CN 95204923 patent/CN2220334Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717075A (en) * | 2012-06-21 | 2012-10-10 | 黄彬 | Automatic powder forming die carrier based on powder metallurgy press and implementation method thereof |
| CN106270521A (en) * | 2016-08-30 | 2017-01-04 | 佛山市顺德区然华精密金属制品有限公司 | powder metallurgy press mandrel holder rotating mechanism |
| CN106270521B (en) * | 2016-08-30 | 2018-07-31 | 佛山市顺德区然华精密金属制品有限公司 | Powder metallurgy press mandrel holder rotating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |