CN103192076B - Forming device for sealing powder block for oxygen sensor - Google Patents
Forming device for sealing powder block for oxygen sensor Download PDFInfo
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- CN103192076B CN103192076B CN201310090120.0A CN201310090120A CN103192076B CN 103192076 B CN103192076 B CN 103192076B CN 201310090120 A CN201310090120 A CN 201310090120A CN 103192076 B CN103192076 B CN 103192076B
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Abstract
The invention discloses a forming device for a sealing powder block for an oxygen sensor, which comprises a bottom plate, wherein a positioning shaft is arranged on the bottom plate, a top plate is fixedly connected with the top end of the positioning shaft, and a top cylinder is arranged on the top plate; a positioning flat plate is connected with the positioning shaft in a sleeving way, a piston rod of the top cylinder is connected onto the upper end surface of the positioning flat plate, and a cylindrical upper die is arranged on the lower end surface of the positioning flat plate; a lower die is arranged on the bottom plate, a cylindrical powder storage cavity assembled with the upper die in a matched manner is formed between the top end of the lower die and the bottom plate, and a bottom cylinder is connected to the bottom end of the lower die; a central pin penetrates the center of the lower die, and a reset spring is connected with the bottom end of the central pin; and the upper die, the powder storage cavity, the lower die and the central pin are coaxially arranged through the reset spring. The forming device is convenient to operate, the complete penetration of the through hole in the center of the sealing powder block is further ensured on the basis of ensuring the pressing precision of the sealing powder block, and the rejection ratio of the sealing powder block is greatly reduced.
Description
Technical field
The present invention relates to a kind of powder forming unit, particularly a kind of shaped device for the manufacture of lambda sensor sealing powder agglomates.
Background technology
In the manufacture process of oxygen sensor used in vehicle, strip chip is needed to carry out encapsulation process, usually chip is provided with in the sealing powder agglomates of square opening through centre shaping in advance during sealing, then be placed in sensor housing together, again the sealing realizing chip is press-fited to sealing powder agglomates, wherein seal the shape of powder agglomates as shown in Figure 1.The making of sealing powder agglomates needs sealing powder to load in shaped device to be pressed into cylinder bulk, and then at the center punching press square opening of cylinder.
Conventional shaped device as shown in Figure 2, comprise base, base is provided with the support placing top cylinder, the bottom connecting cylinder shape mold of cylinder, the center of mold is provided with central pin, the position corresponding with mold, base center is provided with bed die, and bed die is corresponding to mold shape and the equipped mutually cylindrical tube of shape, and the below of bed die connects bottomed cylinder.In sealing powder formation of lots process, sealing is loaded with powder in the cylindrical cavity of bed die, starts top cylinder, mold is pressed down, just the sealing powder pressing in cylindrical cavity can be become block, central pin can stamp out a through hole by sealing powder agglomates simultaneously; Then top cylinder resets, and sealing powder agglomates is ejected cylindrical cavity by bottomed cylinder upwards action.The process of this shaped device making sealing powder agglomates is comparatively convenient as early as possible, but in the process pressed down, usually can remain sealing powder on the top of central pin, is therefore difficult to the through hole sealing powder agglomates center to get through.In addition, the top due to central pin frequently presses the bottom of cylindrical cavity under the effect of top cylinder, and wearing and tearing are comparatively serious, easily causes sealing powder agglomates demoulding difficulty.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of shaped device of easy to operate, lambda sensor that square central formation of lots rate is high sealing powder agglomates, can make the process simple and fast sealing powder agglomates compacting, rate of reducing the number of rejects and seconds.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
For the shaped device of lambda sensor sealing powder agglomates, comprise the base plate arranged by support level, described base plate is provided with four locating shafts vertically upward, the top of described locating shaft is fixedly connected with top board, top board is provided with top cylinder; Described locating shaft is socketed with and parallels with base plate and the location panel be slidably matched with locating shaft, the piston rod of connection top, the upper surface cylinder of location panel, the lower surface of location panel is provided with corresponding and cylindrical mold vertically downward block-shaped to lambda sensor sealing powder; The position that described base plate is relative with mold is provided with bed die, forms the cylindrical shape be equipped with mutually with mold and fill powder cavity between the top of bed die with base plate, and the bottom of bed die connects the bottomed cylinder for jack-up bed die;
The center cross-under of described bed die has central pin that is corresponding to oxygen sensor chip shape and that be slidably matched with bed die, and the bottom of described central pin connects a back-moving spring, and the other end of back-moving spring is fixed on the base of bottomed cylinder; Described mold, dress powder cavity, bed die, central pin are arranged with the concentricity axle of back-moving spring;
The length of described central pin is greater than the degree of depth of dress powder cavity; When back-moving spring in the raw time, the either flush of the top of central pin and dress powder cavity.
Improvement of the present invention is: described location panel is provided with the positioning sleeve be slidably matched with locating shaft.
Owing to have employed above technical scheme, the invention technological progress is as follows.
It is convenient and reliable that the present invention makes sealing seal the manufacture process of powder agglomates, and what the setting of four locating shafts can ensure to seal powder agglomates press-fits precision; The central pin can stretched with back-moving spring, can ensure that the through hole sealing powder agglomates center can thoroughly be got through, greatly reduce the percent defective of sealing powder agglomates; And central pin is the top being fixed on back-moving spring, when the wearing and tearing of central pin, directly can changes, improve the service life of whole device.
The positioning sleeve that location panel of the present invention is arranged, can reduce the frictional force of location panel in the process of moving up and down and between locating shaft, saves source of the gas, reduces production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of sealing powder agglomates.
Fig. 2 is the structure chart of traditional shaped device.
Fig. 3 is the structural representation of shaped device of the present invention.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Fig. 5 is the left view of Fig. 3.
Wherein: 1, seal powder agglomates, 2, top cylinder, 3, top board, 4, mold, 5, location panel, 6, central pin, 7, bed die, 8, bottomed cylinder, 9, back-moving spring, 10, support, 11, base plate, 12, locating shaft, 13, positioning sleeve, 14, dress powder cavity.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is further elaborated.
For a shaped device for lambda sensor sealing powder agglomates, shown in its structure chart 3 and Fig. 5.Comprise by the horizontally disposed base plate 11 of support 10, base plate 11 is provided with four locating shafts 12 vertically upward, the top of locating shaft is fixedly connected with top board 3, top board 3 is provided with top cylinder 2.
Locating shaft is socketed with location panel 5, location panel 5 is provided with the positioning sleeve 13 be slidably matched with locating shaft 12, location panel 5 parallels setting with base plate 11, and be slidably matched with locating shaft, the piston rod of connection top, the upper surface cylinder 2 of location panel 5, for moving up and down under the effect of top cylinder.The lower surface of location panel 5 is provided with cylindrical mold 4 vertically downward, and the shape of mold 4 is corresponding to the shape that lambda sensor seals powder agglomates.
The position that base plate 11 is relative with mold 4 is provided with bed die 7, form cylindrical shape between the top of bed die 7 and base plate 11 and fill powder cavity 14, cylindrical shape dress powder cavity 14 is equipped with mold 4 phase, for splendid attire sealing materials powder, and makes sealing powder agglomates in the lower pressure of mold.
The below of base plate 11 is provided with bottomed cylinder 8, and the bottom of bed die 7 connects, the piston rod of bottomed cylinder 8, and bottomed cylinder is used for bed die upwards jack-up, is ejected by the sealing powder agglomates being positioned at dress powder cavity 14.
The center cross-under of bed die 7 has central pin 6, and the shape of central pin 6 is corresponding to oxygen sensor chip shape, and the length of central pin 6 is the degree of depth and the bed die height sum of dress powder cavity 14.The bottom of central pin 6 connects a back-moving spring 9, and the other end of back-moving spring 9 is fixed on the base of bottomed cylinder 8.Central pin, in bed die, is slidably matched with bed die under the effect of back-moving spring.The structural representation of above-mentioned bed die, central pin, dress powder cavity and back-moving spring as shown in Figure 4.
Mold 4 in the present invention, dress powder cavity 14, bed die 7, central pin 6 are arranged with all concentricity axle of back-moving spring 9, when back-moving spring 9 in the raw time, the top of central pin 6 and the either flush of dress powder cavity.
When the present invention is for suppressing sealing powder agglomates, first a certain amount of sealing materials powder is poured in dress powder cavity 14, then starting top cylinder 2 action, make top cylinder drive location panel 5 and mold 4 to move downward along locating shaft 12.When mold 4 is moved down into the end face of dress powder cavity along with location panel, mold touches powder, touches central pin simultaneously; Then mold continues to press down under the effect of top cylinder, and promote powder and move down together with central pin, now spring is in compressive state.When sealing powder agglomates is pressed into bulk, gradually till mold cannot press down.
Close top cylinder 2, now mold 4, location panel 5 move up under the effect of top cylinder, leave charging cavity 14, are stayed in cavity by shaping sealing powder agglomates.Now back-moving spring loses pressure, pops up under the effect of restoring force, drives central pin also move upward and pass sealing powder agglomates simultaneously, thus is formed centrally square through hole in sealing powder agglomates.
Then, open bottomed cylinder 8, promote bed die 7 and move upward, sealing powder agglomates upwards ejects along dress powder cavity together under the promotion of bed die, until sealing powder agglomates departs from dress powder cavity completely, directly takes off.Finally close bottomed cylinder, bed die resets to home position, can carry out the compacting of next sealing powder agglomates.
Claims (2)
1. the shaped device for lambda sensor sealing powder agglomates, comprise by support (10) horizontally disposed base plate (11), described base plate (11) is provided with four locating shafts (12) vertically upward, the top of described locating shaft is fixedly connected with top board (3), top board (3) is provided with top cylinder (2); Described locating shaft is socketed with and parallels and the location panel (5) be slidably matched with locating shaft with base plate (11), the piston rod at the connection top, upper surface cylinder (2) of location panel (5), the lower surface of location panel (5) is provided with corresponding and cylindrical mold (4) vertically downward block-shaped to lambda sensor sealing powder; The position that described base plate (11) is relative with mold (4) is provided with bed die (7), form the cylindrical shape equipped mutually with mold (4) between the top of bed die (7) with base plate (11) and fill powder cavity (14), the bottom of bed die (7) connects the bottomed cylinder (8) for jack-up bed die; It is characterized in that:
The center cross-under of described bed die (7) has central pin (6) that is corresponding to oxygen sensor chip shape and that be slidably matched with bed die, the bottom of described central pin (6) connects a back-moving spring (9), and the other end of back-moving spring (9) is fixed on the base of bottomed cylinder (8); Described mold (4), dress powder cavity (14), bed die (7), central pin (6) are arranged with the concentricity axle of back-moving spring (9);
The length of described central pin (6) is greater than the degree of depth of dress powder cavity (14); When back-moving spring (9) in the raw time, the either flush of the top of central pin (6) and dress powder cavity.
2. the shaped device for lambda sensor sealing powder agglomates according to claim 1, is characterized in that: described location panel (5) is provided with the positioning sleeve (13) be slidably matched with locating shaft (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090120.0A CN103192076B (en) | 2013-03-20 | 2013-03-20 | Forming device for sealing powder block for oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090120.0A CN103192076B (en) | 2013-03-20 | 2013-03-20 | Forming device for sealing powder block for oxygen sensor |
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| Publication Number | Publication Date |
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| CN103192076A CN103192076A (en) | 2013-07-10 |
| CN103192076B true CN103192076B (en) | 2015-02-25 |
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| CN201310090120.0A Active CN103192076B (en) | 2013-03-20 | 2013-03-20 | Forming device for sealing powder block for oxygen sensor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11217601A (en) * | 1998-01-30 | 1999-08-10 | Daihatsu Motor Co Ltd | Powder compaction equipment |
| JP3842098B2 (en) * | 2001-10-12 | 2006-11-08 | Ｔｄｋ株式会社 | Powder material molding apparatus and molding method |
| CN201058500Y (en) * | 2007-06-27 | 2008-05-14 | 河源富马硬质合金股份有限公司 | Lever press fixed by die |
| JP4490241B2 (en) * | 2004-11-22 | 2010-06-23 | 三菱マテリアルテクノ株式会社 | Powder molding equipment |
| CN101875127A (en) * | 2009-11-16 | 2010-11-03 | 南京东部精密机械有限公司 | Powder metallurgy sizing die frame |
| CN201736449U (en) * | 2010-07-27 | 2011-02-09 | 宁波市北仑新港冶金机械有限公司 | Reset cylinder of powder mill |
| CN102555268A (en) * | 2011-12-29 | 2012-07-11 | 上海爱普生磁性器件有限公司 | Demoulding method capable of reducing fractures of magnetic body |
| CN203140763U (en) * | 2013-03-20 | 2013-08-21 | 无锡隆盛科技股份有限公司 | Forming device for oxygen sensor sealing powder block |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1770084C (en) * | 1990-05-29 | 1992-10-23 | Институт проблем материаловедения АН УССР | Apparatus for hydrostatic compaction of hollow long-dimension articles made of powders |
-
2013
- 2013-03-20 CN CN201310090120.0A patent/CN103192076B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11217601A (en) * | 1998-01-30 | 1999-08-10 | Daihatsu Motor Co Ltd | Powder compaction equipment |
| JP3842098B2 (en) * | 2001-10-12 | 2006-11-08 | Ｔｄｋ株式会社 | Powder material molding apparatus and molding method |
| JP4490241B2 (en) * | 2004-11-22 | 2010-06-23 | 三菱マテリアルテクノ株式会社 | Powder molding equipment |
| CN201058500Y (en) * | 2007-06-27 | 2008-05-14 | 河源富马硬质合金股份有限公司 | Lever press fixed by die |
| CN101875127A (en) * | 2009-11-16 | 2010-11-03 | 南京东部精密机械有限公司 | Powder metallurgy sizing die frame |
| CN201736449U (en) * | 2010-07-27 | 2011-02-09 | 宁波市北仑新港冶金机械有限公司 | Reset cylinder of powder mill |
| CN102555268A (en) * | 2011-12-29 | 2012-07-11 | 上海爱普生磁性器件有限公司 | Demoulding method capable of reducing fractures of magnetic body |
| CN203140763U (en) * | 2013-03-20 | 2013-08-21 | 无锡隆盛科技股份有限公司 | Forming device for oxygen sensor sealing powder block |
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| CN103192076A (en) | 2013-07-10 |
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