CN101608566B - Packaging process for three-way catalytic converter - Google Patents
Packaging process for three-way catalytic converter Download PDFInfo
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- CN101608566B CN101608566B CN200810039110A CN200810039110A CN101608566B CN 101608566 B CN101608566 B CN 101608566B CN 200810039110 A CN200810039110 A CN 200810039110A CN 200810039110 A CN200810039110 A CN 200810039110A CN 101608566 B CN101608566 B CN 101608566B
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Abstract
The invention discloses a packaging process for a three-way catalytic converter, which relates to the technical field of mechanical manufacture, and aims to solve the technical problems that the bonding type has defects in the production of the three-way catalytic converters according with Europe IV standard. The flow of the packaging process comprises: 1) measuring the outside diameter of a carrier and the weight of a pad; 2) packaging the carrier first and favorably attaching the packaged pad to the carrier, and then pressing the packaged pad into the shell by a power source; 3) performing multiple contraction on workpieces by an outside diameter contracting device of the three-way catalytic converter on the basis of data obtained by measuring the outside diameter of the carrier and the pad; 4) flaring two end ports of the workpieces without damaging the carrier, and keeping the flared end surface straight to ensure that the space between two annual welding seams is consistent and equal; and 5) performing assembly welding, namely respectively inserting two end cones into flares at two ends of the workpieces and welding the flares along the end surfaces of the flares. The packaging process for the three-way catalytic converter has the characteristics of strong adaptability, even contraction and deformation, can avoid the breakage of the carrier and the damage of the pad, and has good circularity of the appearance.
Description
Technical field
The present invention relates to Machine Manufacturing Technology, particularly relate to a kind of packaging technology that is used for the manufacturing of the ternary catalyzing unit that motor vehicle exhaust emission handles.
Background technique
Vehicle exhaust is the main atmospheric pollution sources of modern city, pollution abatement discharging, mainly is to rely on the ternary catalyzing unit that contains catalyzer is installed, let CO, HC, NOx, etc. harmful gas become the gas that is fit to enter atmosphere.
For realizing the promise to " Kyoto Protocol ", it is main greenhouse gas emission that European Union requires various countries' time limit to reduce with the vehicle exhaust.According to the promise of the Green Olympics, Europe IV emission standard has been carried out in Beijing before 2008 Olympic Games.This shows that China progressively enlarges implementation vehicle exhaust Europe IV critical field, is trend of the times.
Because the hole count of the carrier of EUROIII Emission Standard ternary catalyzing unit is 600 orders; And the hole count of the carrier of Europe IV standard ternary catalyzing unit is more than 900 orders; Carrier than Europe III is broken more easily; If adopt binding type or common forced ternary catalyzing unit production line production Europe IV ternary catalyzing unit, very easily cause the very high damage percentage of carrier.
There is following shortcoming in the technological process of the binding type ternary catalyzing unit production line of analysis conventional:
1, roll bending; Cylinder need roll (as shown in Figure 1), is prone to straightway and misalignment phenomenon;
2, Manual Packaging carrier;
3, binding spot welding; In bundle process of system workpiece (as shown in Figure 2), because the pressure that the carrier circumference bears is inhomogeneous, can cause the damage of carrier, and liner is inhomogeneous in the circumferencial direction distortion.
Binding type is according to estimating seizing force as unified seizing force; The ternary catalyzing unit liner is shunk, but because the error that carrier is made, there is variation in the size of carrier; Adopt unified seizing force just to make the liner of the ternary catalyzing unit of vary in diameter produce different compression, and change bigger.
4. closing in station; When workpiece closes up (as shown in Figure 3),, cause a hidden trouble for later circumferential weld welding Zong the closing in degree is variant on circularity and long parameter with individuality.
5. welding station; (as shown in Figure 4) because workpiece when the variation of contour projector causes the assembly welding when closing up, and the distance between two circular welds is uncertain, is changing; Therefore the position of welding gun need be with each change of workpiece; Need to measure and follow the tracks of, make equipment too complicated, welding gun can not well be located; Cause weld defects, and welding in housing lap-joint weld defects appears easily circular weld the time.
The following problem that exists when in short, adopting binding type ternary catalyzing unit production line production Europe IV catalyst converter:
1, can not be according to the different defective that change of each carrier liner;
2, the outer circularity of cylinder is bad;
Easy damaged liner when 3, bundling;
Gasket deformation is inconsistent when 4, bundling, and the carrier pressurized is inhomogeneous, and carrier is prone to broken;
Profile variation is inconsistent when 5, closing up;
Straight weld is prone to cause weld defects when 6, welding, and needs repair welding, and bubble is arranged, and the place of scrap (bridge) is prone to weld defects;
7, because of the back size that closes up changes, the position of welding gun is unfixing when causing welding, and needs often adjustment, is prone to weld defects.
Therefore, when carrying out Europe IV standard ternary catalyzing unit production encapsulation, must adopt new technology, overcome the binding type significant deficiency that IV standard catalyst converter causes in encapsulation Europe, could satisfy the needs of mass production Europe IV standard catalyst converter.
Summary of the invention
To the defective that exists in the above-mentioned existing technology, it is strong that technical problem to be solved by this invention provides a kind of adaptability, shrinks evenly, and distortion evenly can avoid carrier broken, avoids damaging liner, the packaging technology of the ternary catalyzing unit that profile circularity is good.
In order to solve the problems of the technologies described above, the novel encapsulated technology of a kind of ternary catalyzing unit provided by the present invention is characterized in that, the flow process of packaging technology:
1) carrier outer (directly) directly, the measurement of liner weight;
2) carrier is pressed into housing,
The packing good vector is fitted well packaged liner and carrier earlier; The carrier that adopts power source will wrap liner then is pressed into housing;
3) the catalyst converter external diameter shrinks,
Using ternary catalyzing unit external diameter constriction device, is foundation with carrier outside diameter measuring and liner data measured, and workpiece is carried out secondary external diameter contraction at least, after promptly shrinking first, with the angle that Workpiece Rotating is set, shrinks once more;
4) catalyst converter enlarging,
Two port enlargings with workpiece do not damage carrier when enlarging, and make the end face of enlarging straight, i.e. the end face of enlarging is perpendicular to the axis of workpiece, when the end awl is with the workpiece location when guaranteeing welding, and the spacing unanimity equidistance of two ring-like weld seams;
5) assembly welding is bored the enlarging of inserting workpiece two ends respectively with two ends, and welds along the enlarging end face.
Further, adopt the contactless diameter of two groups of laser beam measuring carriers up and down in the described step 1).
Further; Described step 2) carrier that Manual Packaging is good is placed on carrier and is pressed on the seat in; The workpiece housing is placed between fixing half shell and mobile half shell; Hold cylinder tightly and promote to move half shell the workpiece housing is held tightly, clamping cylinder compresses the workpiece housing through pressing plate, then with packaged carrier in guide way is pressed into housing.Requirement can not be wrinkling, can not become flexible.
Further; Ternary catalyzing unit external diameter constriction device described in the described step 3); Comprising control section, tighten up the shrinking machine that anchor clamps are formed by driving structure and workpiece, is power with hydraulic pressure, air pressure or machinery, adopts computer close-loop control; The data of the station of measuring with carrier outside diameter measuring and liner are foundation, adopt the secondary at least of computer close-loop control contour projector to shrink.
Further, the workpiece after will shrinking in the described step 4) is put on the enlarging device, adopt power such as actuating motor with the two ends of workpiece with the buccal mass that rises (expansion) mouth that rises.
Further, in the described step 5) pack into the workpiece of end cap of two ends is placed on the work supporting block, by the mounting fixture top tight workpiece, drives anchor clamps driving Workpiece Rotating, two welding guns, are welded behind the cylinder two ends by servo-drive.
Utilize the packaging technology of the ternary catalyzing unit of catalyst converter provided by the invention,, make the present invention have following beneficial effect owing to adopt forced packaging technology:
1) forced cylinder adopt welding quality good the seam Stainless Steel Tube arranged, forming, circularity is good, does not have the damage liner, housing is carried out the problem of straight weld welding; Owing to adopt prefabricated cylinder, therefore reduced the welding straight weld, thereby avoided the welding defective that straight weld produced and the damage of carrier.
2) forced is even contraction to shell, makes carrier bear uniform pressure, and gasket deformation is even, is difficult for the crushing carrier;
3) each carrier diameter girth of forced detection, and detect the size of each cylindrical shell is cut the garment according to the figure, and confirms contour projector according to the size of each workpiece and liner thickness are different, and compression evenly more tallies with the actual situation;
4) forced packaging line is a power with hydraulic pressure, air pressure or machinery, adopts computer close-loop control, and the data of the station of measuring with carrier outside diameter measuring and liner are foundation, adopt the computer close-loop control contour projector, then with the Workpiece Rotating several angle, and contraction once more; Advantage: the catalyst converter external diameter repeatedly shrinks, and corner shrinks, and whole weight reducing banding shrinks evenly, and distortion evenly is difficult for the crushing carrier;
5) after the forced even closing in, enlarging is carried out in the both sides of workpiece after contraction, with the end face of workpiece after the enlarging as locating face; The straight weld distance of when welding workpiece both sides is consistent, can gain in strength and enlarging to the accurate size of end awl, be convenient to the end awl and insert; The length unanimity does not change, and with both sides enlarging ear end face location, the welding gun location is simple; Need not weld straight weld, circumferential weld is not prone to weld defects;
6) because two ends awl is the enlarging of inserting workpiece two ends respectively, circumferential weld is located at workpiece enlarging top and is held on the awl, thereby has avoided the infringement of the high temperature of weld to carrier in the workpiece and liner.
Because the Kong Gengxiao of the carrier of the ternary catalyzing unit of the boring ratio Europe III emission standard of the end face of the carrier of the ternary catalyzing unit of Europe IV or Euro V emissions; Closeer; Damage more easily, and adopt forced ternary catalyzing unit production line to be used for the production of the ternary catalyzing unit of Europe IV or Euro V emissions, owing to adopted new technology mode; Change configuration of devices, just can avoid the damaged problem of carrier.
Description of drawings
Fig. 1 is the process schematic representation of roll bending in the technological process of existing technology production line;
Fig. 2 is the process schematic representation of binding spot welding in the technological process of existing technology production line;
Fig. 3 is the process schematic representation that the technological process middle shell of existing technology production line closes up;
Fig. 4 is the process schematic representation of assembly welding in the technological process of existing technology production line;
Fig. 5 is the measurement process schematic representation of carrier diameter in the packaging technology flow process of embodiment of the invention ternary catalyzing unit, liner weight;
The process schematic representation that Fig. 6 is pressed into for carrier in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
The device structure schematic representation that Fig. 7 is pressed into for carrier in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
Fig. 8 is the process schematic representation that the catalyst converter external diameter shrinks in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
Fig. 9 is the control flow skeleton diagram of catalyst converter external diameter compressive shrinkage machines in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
Figure 10 is the capital equipment structural representation that the catalyst converter external diameter shrinks in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
Figure 11 is the process schematic representation in the catalyst converter enlarging in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
Figure 12 is the device structure schematic representation in the catalyst converter enlarging in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
Figure 13 is the process schematic representation of catalytic converter assembly welding in the packaging technology flow process of embodiment of the invention ternary catalyzing unit;
Figure 14 is the device structure schematic representation of catalytic converter assembly welding in the packaging technology flow process of embodiment of the invention ternary catalyzing unit.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
The packaging technology of a kind of ternary catalyzing unit that the embodiment of the invention provided is characterized in that, the flow process of packaging technology:
1, carrier outer (directly) directly, the measurement of liner weight,
Adopt the external diameter of non-contact measurement carrier,, adopt transmitter 14 to send two groups of laser beams by shown in Figure 5; Send from an end of carrier 12, through the both sides of carrier, by Receiver 15 receptions of the other end; By the dash area 13 that carrier is held back, can calculate the external diameter of carrier, simultaneously; Carrier can be measured the mean outside diameter of carrier by being rotated clockwise, makes carrier adjustment position by servo-drive then; Measure the external diameter of diverse location, calculate average external diameter data, parameter is provided for carrier shrinks station by computer; The weight of each liner of weighing can indirect calculation goes out the thickness of liner.Advantage: measure each carrier dimensions, the weight of each liner of weighing is cut the garment according to the figure, and more tallies with the actual situation.
2, carrier is pressed into,
By Fig. 6, shown in Figure 7, by hand liner is wrapped in the carrier circumference, and liner is cemented with resistant to elevated temperatures adhesive tape, not overlapping, do not stay the slit.Be aided with the mechanical device package carrier by hand, it is good that packaged liner and carrier are fitted.Advantage: liner is packed into and can not damaged, and liner can be not wrinkling.
The carrier 25 that Manual Packaging is good is placed on carrier and is pressed on the seat 24, and workpiece housing 32 is placed between fixing half shell 30 and mobile half shell 31, holds mobile half shell 21 of cylinder 27 promotions tightly the workpiece housing is held tightly; Clamping cylinder 29 compresses the workpiece housing through pressing plate 28; Actuating motor 21 drives push rod 23 by screw mandrel 22 after slowing down then, passes to carrier and is pressed into seat 24, and packaged carrier 25 is made progress jacking in guide way 26 is pressed into housing 32; Requirement can not be wrinkling, can not become flexible.
3, the catalyst converter external diameter shrinks
Workpiece is carried out external diameter to be shunk; Using special ternary catalyzing unit external diameter constriction device, is power with hydraulic pressure, air pressure or machinery, adopts computer close-loop control; The data of the station of measuring with carrier outside diameter measuring and liner are foundation; Adopt the computer close-loop control contour projector,, shrink once more then with the Workpiece Rotating several angle.Advantage: the catalyst converter external diameter repeatedly shrinks, and corner shrinks, and shrinks the no impression in back, and whole weight reducing banding shrinks evenly, and distortion evenly is difficult for the crushing carrier.
By Fig. 8-shown in Figure 10, said special ternary catalyzing unit external diameter constriction device comprises control section, tightens up the shrinking machine that anchor clamps are formed by driving structure and workpiece; Like Fig. 9; Said control section comprises measuring unit, microprocessor and the driving control unit that connects successively, and wherein, measuring unit is made up of generating laser and laser Receiver; The diameter that is used for accurate measuring workpieces; Microprocessor is established the diameter measurement computing module that connects measuring unit and is shunk control module with the workpiece that is connected diameter measurement computing module, driving control unit respectively, is used to calculate the average diameter of workpiece, and tightens up the each contour projector of anchor clamps through driving control unit control workpiece; Said driving structure comprises the actuating motor that connects successively and the top board of driving thereof, and driving control unit connects and the control actuating motor; Like Figure 10; Said workpiece tightens up anchor clamps 4 and comprises axially being followed successively by at least ten from the inside to the outside and shrinking modules 41, slide block 45, wedge 46 along workpiece 42; Top board 47 is touched in the slide block lower end; As shown in Figure 8, it is evenly distributed with a gap along the workpiece circumferencial direction to shrink module 41, and wedge is provided with and can becomes moving axially to shrinking the inclined-plane that module inwardly moves radially that top board makes progress.During contraction, the driven by servomotor top board upwards promotes slide block along workpiece spindle, and slide block inwardly promotes to shrink moving radially of module (to workpiece spindle) along the inclined-plane of wedge, thereby evenly shrinks workpiece (external diameter of catalyst converter) under the effect of wedge.After said contraction finishes; Shrinking machine unclamps workpiece, by hand or automatically workpiece is taken out then, the workpiece tune is reentered in the anchor clamps of shrinking machine again; And the angle of original relatively placement location deflection pi/2 M (wherein M is for shrinking number of modules); Carry out the second time and shrink, shrink the back and take out workpiece, accomplish the contraction work of catalyst converter.
4, catalyst converter enlarging,
Workpiece is put on the enlarging device; Power such as employing actuating motor carry out enlarging with the two ends of workpiece; When enlarging, do not damage carrier, make the end face of enlarging straight simultaneously, i.e. the end face of enlarging is perpendicular to the axis of workpiece; When end awl and workpiece are located when guaranteeing welding, the consistent equidistance of the spacing of two ring-like weld seams.
By Figure 11, shown in Figure 12, the workpiece 56 after shrinking is placed on the carriage 58, by actuating motor 51 through back drive leading screw and nut mechanism screw mandrel 52 nuts 53 that slow down, promotion wedge bar 54, the buccal mass 55 that the rises mouth that rises, 57 is guide rod.
Advantage: locate with both sides enlarging ear end face, end is bored and is located when being convenient to weld, and both sides enlarging uniform in shaping unanimity can be gained in strength and the accurate size that end is bored is arrived in enlarging, is convenient to hold bore and puts into.
5, assembly welding,
By Figure 13, shown in Figure 14, the enlarging that two end caps (awl) are inserted workpiece two ends respectively is placed on pack into the workpiece 69 of end cap of two ends on the work supporting block 70, and with workpiece jack-up, the clamping work pieces cylinder 73 on right side is with mounting fixture 72 top tight workpieces by retainer cylinder 71.Actuating motor 61 drives driving pulley 64 by driving shaft 63 and drives after retarder 62 slows down, be with 65 synchronously, driven pulley 66 driven shafts; Drive right side anchor clamps rotation; Drive Workpiece Rotating, two welding guns 11 ', are welded along the enlarging end face behind the cylinder two ends by servo-drive.
Owing to adopt prefabricated cylinder, therefore reduced the welding straight weld, thereby avoided the welding defective that straight weld produced and the damage of carrier.Advantage: with both sides enlarging ear end face location, the welding gun location is simple, need not weld straight weld, and circumferential weld is not prone to weld defects.
Claims (6)
1. the packaging technology of a ternary catalyzing unit is characterized in that, the flow process of packaging technology comprises:
1) measurement of carrier external diameter, liner weight;
2) carrier is pressed into housing,
The packing good vector is fitted well packaged liner and carrier earlier; The carrier that to wrap liner then is pressed into housing;
3) the catalyst converter external diameter shrinks,
Using ternary catalyzing unit external diameter constriction device, is foundation with the data measured of carrier outside diameter measuring and liner weight, carries out at least to workpiece that the secondary external diameter shrinks, after promptly shrinking first, with the angle that Workpiece Rotating is set, contraction once more;
4) catalyst converter enlarging,
Two port enlargings with workpiece do not damage carrier when enlarging, and make the end face of enlarging straight, when end awl and workpiece are located in the time of with the assurance welding, and the spacing unanimity equidistance of two ring-like weld seams;
5) assembly welding is bored the enlarging of inserting workpiece two ends respectively with two ends, and welds along the enlarging end face.
2. the packaging technology of ternary catalyzing unit according to claim 1 is characterized in that, adopts the contactless diameter of two groups of laser beam measuring carriers up and down in the described step 1).
3. the packaging technology of ternary catalyzing unit according to claim 1; It is characterized in that; Described step 2) in carrier is placed on carrier and is pressed on the seat, the workpiece housing is placed between fixing half shell and mobile half shell, hold mobile half shell of cylinder promotion tightly the workpiece housing is held tightly; Clamping cylinder compresses the workpiece housing through pressing plate, then with packaged carrier in guide way is pressed into housing.
4. the packaging technology of ternary catalyzing unit according to claim 1; It is characterized in that the ternary catalyzing unit external diameter constriction device described in the described step 3) comprises control section, tightens up the shrinking machine that anchor clamps are formed by driving structure and workpiece; With hydraulic pressure, air pressure or machinery is power; Adopting computer close-loop control, is foundation with the data of the station of the measurement of carrier outside diameter measuring and liner weight, and secondary is carried out in the contraction of employing computer close-loop control contour projector at least.
5. the packaging technology of ternary catalyzing unit according to claim 1 is characterized in that, the workpiece after will shrinking in the described step 4) is put on the enlarging device, and enlarging is carried out with the buccal mass that rises in the two ends of workpiece.
6. the packaging technology of ternary catalyzing unit according to claim 1; It is characterized in that; In the described step 5) pack into the workpiece of end awl of two ends is placed on the work supporting block,, drives anchor clamps to drive Workpiece Rotating by the mounting fixture top tight workpiece; Two welding guns, are welded behind the cylinder two ends by servo-drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810039110A CN101608566B (en) | 2008-06-18 | 2008-06-18 | Packaging process for three-way catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810039110A CN101608566B (en) | 2008-06-18 | 2008-06-18 | Packaging process for three-way catalytic converter |
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| Publication Number | Publication Date |
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| CN101608566A CN101608566A (en) | 2009-12-23 |
| CN101608566B true CN101608566B (en) | 2012-10-10 |
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| CN200810039110A Expired - Fee Related CN101608566B (en) | 2008-06-18 | 2008-06-18 | Packaging process for three-way catalytic converter |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000961B (en) * | 2010-09-08 | 2013-05-01 | 芜湖恒耀汽车零部件有限公司 | Carrier packaging process of three-way catalytic converter and carrier pressing machine |
| CN102536400A (en) * | 2012-02-13 | 2012-07-04 | 浙江邦得利汽车环保技术有限公司 | Encapsulation technology of three-way catalytic converter assembly |
| CN104071367B (en) * | 2014-07-03 | 2016-03-02 | 天津卡达克汽车高新技术公司 | A kind of for catalyst encapsulation without adhesive tape Wrap device |
| CN104265424B (en) * | 2014-08-11 | 2016-08-24 | 无锡威孚力达催化净化器有限责任公司 | The encapsulating mould of three-way catalytic converter |
| CN106697423A (en) * | 2017-02-28 | 2017-05-24 | 金华欧仑催化科技有限公司 | Automatic sizing type three-way catalyst packaging system |
| CN112621135A (en) * | 2020-12-23 | 2021-04-09 | 河北亿利康纳利亚环保科技有限公司 | Post-treatment non-guide die carrier packaging process |
| CN116550812B (en) * | 2023-07-07 | 2023-09-22 | 江苏龙胜机床制造有限公司 | Adjustable flaring veneer reeling machine that contracts |
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| JP2002523261A (en) * | 1998-08-24 | 2002-07-30 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | Mounting material for pollution control equipment |
| CN2602171Y (en) * | 2003-03-19 | 2004-02-04 | 上海德尔福排气控制系统有限公司 | Ternary catalytic converter |
| CN2900804Y (en) * | 2006-04-14 | 2007-05-16 | 陈法献 | Improvement of gasoline engine ternary catalystic device structure |
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2008
- 2008-06-18 CN CN200810039110A patent/CN101608566B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002523261A (en) * | 1998-08-24 | 2002-07-30 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | Mounting material for pollution control equipment |
| CN2602171Y (en) * | 2003-03-19 | 2004-02-04 | 上海德尔福排气控制系统有限公司 | Ternary catalytic converter |
| CN2900804Y (en) * | 2006-04-14 | 2007-05-16 | 陈法献 | Improvement of gasoline engine ternary catalystic device structure |
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