CN103192076A - 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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- CN103192076A CN103192076A CN2013100901200A CN201310090120A CN103192076A CN 103192076 A CN103192076 A CN 103192076A CN 2013100901200 A CN2013100901200 A CN 2013100901200A CN 201310090120 A CN201310090120 A CN 201310090120A CN 103192076 A CN103192076 A CN 103192076A
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- bed die
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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, the strip chip need be carried out encapsulation process, usually the centre of chip being passed prior moulding during sealing is provided with in the sealing powder agglomates of square opening, be placed in the sensor housing then together, again the sealing powder agglomates is press-fited to realize the sealing of chip, wherein seal the shape of powder agglomates as shown in Figure 1.The making of sealing powder agglomates need be packed sealing into and is pressed into the cylinder bulk in the shaped device with powder, and then at the center of cylinder punching press square opening.
Shaped device commonly used as shown in Figure 2, comprise base, base is provided with the support of placing the top cylinder, the bottom of cylinder connects cylindrical mold, 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 shape cylindrical tube corresponding with the mold shape and that be equipped with mutually, and the below of bed die connects bottomed cylinder.In sealing powder formation of lots process, sealing is packed in the cylindrical cavity of bed die with powder, start the top cylinder, mold is pressed down, just the sealing in the cylindrical cavity can be pressed into bulk with powder, central pin can will stamp out a through hole in the sealing powder agglomates simultaneously; The top cylinder resets then, and bottomed cylinder upwards action will seal powder agglomates and eject cylindrical cavity and get final product.To make the process of sealing powder agglomates comparatively convenient for this shaped device as early as possible, but in the process that presses down, and usually can be on the top of central pin residual have a sealing powder, and therefore the very difficult through hole that will seal the powder agglomates center is got through.In addition, because the top of central pin frequently presses cylindrical cavity under the effect of top cylinder bottom, it is comparatively serious to wear and tear, and causes sealing powder agglomates demoulding difficulty easily.
Summary of the invention
The technical problem that the present invention solves provides the shaped device of the high lambda sensor sealing powder agglomates of a kind of easy to operate, square central block ratio of briquetting, the process simple and fast that can make the compacting of sealing powder agglomates, the 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.
Be used for the shaped device of lambda sensor sealing powder agglomates, comprise the base plate that arranges by support level, described base plate is provided with four locating shafts vertically upward, and the top of described locating shaft is fixedly connected with top board, and top board is provided with the top cylinder; Be socketed with the location flat board that parallels with base plate and be slidingly matched with locating shaft on the described locating shaft, dull and stereotyped upper surface, location connects the piston rod of top cylinder, and dull and stereotyped lower surface, location is provided with and block-shaped corresponding and vertically downward the cylindrical mold of lambda sensor sealing powder; The position that described base plate is relative with mold is provided with bed die, forms between the top of bed die and the base plate and mold equipped cylindrical shape dress powder cavity mutually, and the bottom of bed die connects the bottomed cylinder that is used for the jack-up bed die;
The center cross-under of described bed die has central pin corresponding with the oxygen sensor chip shape and that be slidingly 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 arrange 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 the time, the top of central pin is concordant with the end face of dress powder cavity.
Improvement of the present invention is: the dull and stereotyped positioning sleeve that is slidingly matched with locating shaft that is provided with in described location.
Owing to adopted above technical scheme, the invention technological progress is as follows.
The present invention makes the manufacture process of sealing sealing powder agglomates convenient and reliable, and the setting of four locating shafts can guarantee to seal the precision that press-fits of powder agglomates; Can be with the flexible central pin of back-moving spring, can guarantee that the through hole that seals the powder agglomates center can thoroughly get through, greatly reduce the percent defective of sealing powder agglomates; And central pin is the top that is fixed on back-moving spring, when the wearing and tearing of centrepin, can directly change and gets final product, and has improved the service life of whole device.
The present invention locatees the dull and stereotyped positioning sleeve that arranges of going up, and can reduce to locate dull and stereotyped frictional force in the process of moving up and down and between the locating shaft, saves source of the gas, has reduced production cost.
Description of drawings
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, sealing powder agglomates, 2, the top cylinder, 3, top board, 4, mold, 5, the location is dull and stereotyped, 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.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further elaborated.
A kind of shaped device for lambda sensor sealing powder agglomates, its structure chart 3 and shown in Figure 5.Comprise that base plate 11 is provided with four locating shafts 12 vertically upward by support 10 horizontally disposed base plates 11, the top of locating shaft is fixedly connected with top board 3, and top board 3 is provided with top cylinder 2.
Be socketed with location dull and stereotyped 5 on the locating shaft, location dull and stereotyped 5 is provided with the positioning sleeve 13 that is slidingly matched with locating shaft 12, location dull and stereotyped 5 parallels setting with base plate 11, and be slidingly matched with locating shaft, the upper surface of location dull and stereotyped 5 connects the piston rod of top cylinder 2, is used for moving up and down under the effect of top cylinder.The lower surface of location dull and stereotyped 5 is provided with cylindrical mold 4 vertically downward, and the shape of the shape of mold 4 and lambda sensor sealing powder agglomates is corresponding.
The below of base plate 11 is provided with bottomed cylinder 8, and the bottom of bed die 7 connects, and the piston rod of bottomed cylinder 8, bottomed cylinder are for jack-up that bed die is made progress, and the sealing powder agglomates that will be positioned at dress powder cavity 14 ejects.
The center cross-under of bed die 7 has central pin 6, and the shape of central pin 6 is corresponding with the 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 is slidingly matched with bed die under the effect of back-moving spring in bed die.The structural representation of above-mentioned bed die, central pin, dress powder cavity and back-moving spring as shown in Figure 4.
When the present invention seals powder agglomates for compacting, at first a certain amount of sealing materials powder is poured in the dress powder cavity 14, started 2 actions of top cylinder then, top cylinder drive location flat board 5 and mold 4 are moved downward along locating shaft 12.When mold 4 was moved down into the end face of dress powder cavity along with the location is dull and stereotyped, mold touched powder, touches central pin simultaneously; Mold continues to press down under the effect of top cylinder then, promotes powder and central pin and moves down together, and this moment, spring was in compressive state.When the sealing powder agglomates is pressed into bulk gradually, till mold can't press down.
Close top cylinder 2, mold 4, location dull and stereotyped 5 move up under the effect of top cylinder at this moment, leave charging cavity 14, and the sealing powder agglomates of moulding is stayed in the cavity.This moment, back-moving spring lost pressure, popped up under the effect of restoring force, drove central pin simultaneously and also moved upward and pass the sealing powder agglomates, thereby be formed centrally square through hole in the sealing powder agglomates.
Then, open bottomed cylinder 8, promote bed die 7 and move upward, the sealing powder agglomates upwards ejects along dress powder cavity under the promotion of bed die together, breaks away from dress powder cavity fully up to the sealing powder agglomates, directly takes off to get final product.Close bottomed cylinder at last, bed die resets to the home position, can carry out the compacting of next sealing powder agglomates.
Claims (2)
1. one kind is used for the shaped device that lambda sensor seals powder agglomates, comprise by the horizontally disposed base plate of support (10) (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), and top board (3) is provided with top cylinder (2); Be socketed with the location flat board (5) that parallels with base plate (11) and be slidingly matched with locating shaft on the described locating shaft, the upper surface of location dull and stereotyped (5) connects the piston rod of top cylinder (2), and the lower surface of location dull and stereotyped (5) is provided with and block-shaped corresponding and vertically downward the cylindrical mold (4) of lambda sensor sealing powder; The position that described base plate (11) is relative with mold (4) is provided with bed die (7), form between the top of bed die (7) and the base plate (11) and mold (4) equipped cylindrical shape dress powder cavity (14) mutually, the bottom of bed die (7) connects the bottomed cylinder (8) that is used for the jack-up bed die; It is characterized in that:
The center cross-under of described bed die (7) has central pin (6) corresponding with the oxygen sensor chip shape and that be slidingly 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) arrange 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 the time, the top of central pin (6) is concordant with the end face of dress powder cavity.
2. the shaped device for lambda sensor sealing powder agglomates according to claim 1, it is characterized in that: described location flat board (5) is provided with the positioning sleeve (13) that is slidingly 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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| CN103192076A true CN103192076A (en) | 2013-07-10 |
| CN103192076B 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 (9)
| 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 |
| 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 |
-
2013
- 2013-03-20 CN CN201310090120.0A patent/CN103192076B/en active Active
Patent Citations (9)
| 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 |
| 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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| CN103192076B (en) | 2015-02-25 |
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