CN102706567B - Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line - Google Patents
Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line Download PDFInfo
- Publication number
- CN102706567B CN102706567B CN201210147658.6A CN201210147658A CN102706567B CN 102706567 B CN102706567 B CN 102706567B CN 201210147658 A CN201210147658 A CN 201210147658A CN 102706567 B CN102706567 B CN 102706567B
- Authority
- CN
- China
- Prior art keywords
- vibroshock
- damping force
- model center
- center building
- real
- 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
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a real-time judgment method for the plumpness of sedan damper indicating characteristics in an assembling line. The real-time judgment method comprises the following steps of: 1) respectively taking a plurality of stroke positions (1, 2, 3 and 4) for each zone of four zones, the damper indicating characteristic attenuation force of which is suddenly changed, and respectively setting the reference values (a, b, c and d) of the attenuation force valves of a damper at a plurality of stroke positions (1, 2, 3 and 4) of the damper; 2) detecting the corresponding attenuation force valves (A, B, C and D) at the stroke positions (1, 2, 3 and 4) of the damper by an attenuation force detection system after the damper indicating characteristics are tested and obtained; and 3) judging whether a damper test piece is normal or not according to the set reference values (a, b, c and d) of the attenuation force valves and the detected attenuation force valves (A, B, C and D) by the attenuation force detection system, wherein when the detected attenuation force valves (A, B, C and D) are larger than or equal to the set reference values (a, b, c and d) of the attenuation force valves, the attenuation force detection system is judged to be normal, and otherwise, the attenuation force detection system is judged to be abnormal. The real-time judgment method provided by the invention can automatically carry out the online and the real-time judgment on the plumpness of the damper indicating characteristics.
Description
Technical field
The present invention is the real-time judge method of a car damper model center building plumpness at assembling line, belongs to the renovation technique of car damper model center building plumpness in the real-time judge method of assembling line.
Background technology
Car with at a high speed, comfortable, safety pushed away the vehicles into first-selection by people.Sedan suspension system is the important mechanism ensureing car driving safety and riding comfort.And vibroshock is as one of the important composition parts of sedan suspension system, the quality of its performance directly has influence on the safety and reliability that car runs.Therefore, in the driving process of car, must guarantee that vibroshock can keep stable and reliable serviceability.Affect a lot of because have of vibroshock performance, the quality of assembly quality is one of them important influence factor, and sometimes, assembly quality even plays decisive role to vibration damper performance quality.In order to address this problem, in production line assembling process, just must carry out strict on-line testing to vibroshock.The relation of vibroshock damping force and displacement in Tension and Compression process repeatedly is mainly tested in on-line testing, is judged the quality of vibroshock quality, undesirable vibroshock is picked out production line in real time by the relation between both analyzing.To the on-line testing of car damper, special checkout equipment is crucial, because checkout equipment technical merit directly affects the raising of vibroshock quality.The vibroshock test macro of car damper assembling line end is exactly arise at the historic moment under these circumstances.
Car damper damping force test macro take industrial computer as core, controlling servomotor drives toggle to be the straight reciprocating motion of shock absorber piston by converting rotary motion, form sinusoidal excitation, and then drive vibroshock to do Tension and Compression to-and-fro movement, coordinate suitable force snesor, realize the test of vibroshock damping force.
The model center building of tradition car damper test macro judges substantially to adopt artificial cognition method, not only inefficiency, and can not realize on-line testing function.And the system that have employed simple automatic discrimination function also can only differentiate the peak value of stretch recovery resistance and compression recovery resistance mostly, and plumpness and the smoothness of load-position diagram can not be identified.Thus cause vibroshock assembling line efficiency low and correctly can not pass judgment on the performance of tested vibroshock test specimen.Great many of experiments shows, car damper shows that the distortion of merit curve is multiple and is born in the upper dead center and bottom dead center-nearby region that show merit curve, and namely four regions jumpy occur damping force.As shown in Figure 1, when show merit curve occur distortion time, show merit curve no longer full round and smooth and damping force occur four regions jumpy may cave in.No matter show that merit curvilinear stretch section restores resistance or compression section recovery resistance all shows as depression when there is distortion, namely show that the area that merit Curves surrounds reduces, that is when vibroshock defectiveness, the energy of Systemic absorption decreases.Consider the requirement of accuracy of detection and real-time, during online differentiation, mainly differentiate whether model center building distorts in these four regions.
Summary of the invention
The object of the invention is to consider the problems referred to above and a kind of real-time judge method of car damper model center building plumpness at assembling line can carrying out on-line automatic real-time judge to vibroshock model center building plumpness is provided.Real-time judge method of the present invention is simple and convenient.
Technical scheme of the present invention is: car damper model center building plumpness of the present invention, in the real-time judge method of assembling line, comprises the steps:
1) respectively get several vibroshock travel position in each region in vibroshock model center building damping force generation four regions jumpy, and set the damping force reference value of vibroshock respectively at these several vibroshock travel position places;
2) test and after obtaining vibroshock model center building, damping force test macro detects decay force value corresponding to several vibroshock travel position places above-mentioned;
3) according to the decay force value of the damping force reference value of setting and detection, damping force test macro judges that whether vibroshock test specimen is normal: when the decay force value of satisfied detection is more than or equal to the decay force value reference value of setting, damping force test macro then judges that vibroshock test specimen is normal, otherwise abnormal.
There is the quadrant I that four regions jumpy are the upper left quarters in vibroshock model center building figure in above-mentioned vibroshock model center building damping force, the quadrant II of lower left quarter, the quadrant III of upper right quarter, the quadrant IV of right lower quadrant, the displacement of quadrant I is just, damping force is just, the displacement of quadrant II is just, damping force is negative, the displacement of quadrant III is just, damping force is just, the displacement of quadrant IV is just, damping force is negative.
The damping force reference value of above-mentioned vibroshock controls setting according to different vibroshock machine, Process management level and assembly precision, specifically as follows:
1) certain vibroshock corresponding, carries out multispecimen and repeatedly tests the normal model center building of acquisition to determine its normal damping force scope;
2) according to the accuracy requirement of user, the reference value of corresponding this kind of vibroshock damping force is determined.
Above-mentioned damping force test macro detects decay force value corresponding to several vibroshock travel position places above-mentioned by data acquisition interface.
Above-mentioned damping force test macro is car damper damping force test macro.
Above-mentioned data acquisition interface is Contec AD16-16 (PCI) EV high-speed multifunctional analog/digital amount data collecting card.
Above-mentioned data acquisition interface is triggered by encoder pulse.
The present invention can carry out on-line automatic real-time judge to vibroshock model center building plumpness to the implementation method of the real-time automatic decision of car damper model center building plumpness, and by sound and light signal and screen display, the vibroshock model center building to exception carries out alarm, to ensure the vibroshock test specimen of assembling line real-time eliminating exception.The present invention is the real-time judge method of a kind of convenient and practical car damper model center building plumpness at assembling line.
Accompanying drawing explanation
Fig. 1 is the abnormal schematic diagram of car damper model center building at quadrant I;
Fig. 2 is the abnormal schematic diagram of car damper model center building at quadrant II;
Fig. 3 is the abnormal schematic diagram of car damper model center building at quadrant III;
Fig. 4 is the abnormal schematic diagram of car damper model center building at quadrant IV;
Fig. 5 is that vibroshock model center building plumpness multiple spot of the present invention detection judges principle schematic;
Fig. 6 is that vibroshock model center building plumpness multiple spot of the present invention detects determining method program flow diagram;
Fig. 7 is normal vibroshock model center building curve map;
Fig. 8 is that the vibroshock of lower right corner depression shows merit curve map;
Fig. 9 is that the vibroshock of the upper left corner and lower right corner depression shows merit curve map.
Embodiment
Embodiment:
Vibroshock model center building plumpness multiple spot of the present invention detects and judges that principle schematic as shown in Figure 5, the basic thought of the method is: show that the region of distortion occurs merit curve at attenuator, namely there are four critical areas jumpy in damping force, there is the quadrant I that four regions jumpy are the upper left quarters in vibroshock model center building figure in above-mentioned vibroshock model center building damping force, the quadrant II of lower left quarter, the quadrant III of upper right quarter, the quadrant IV of right lower quadrant, the displacement of quadrant I is just, damping force is just, the displacement of quadrant II is just, damping force is negative, the displacement of quadrant III is just, damping force is just, the displacement of quadrant IV is just, damping force is negative.According to several reference values of the setting critical areas such as different attenuator machines, Process management level and assembly precision control.The vibroshock damping force test macro of assembling line end is in test with while obtaining vibroshock test specimen model center building, program judges the damping force of above-mentioned critical area automatically, as long as meet the damping force reference value that damping force is greater than corresponding displacement, then the model center building of corresponding vibroshock test specimen belongs to normal condition; Otherwise when damping force is less than the damping force reference value of corresponding displacement, then the model center building of corresponding vibroshock test specimen belongs to abnormality.
Vibroshock model center building plumpness multiple spot based on the method detects and judges that principle schematic is shown in Fig. 5.
Vibroshock model center building plumpness detects and automatic determination step:
A) at vibroshock model center building damping force, each region in four regions jumpy occurring and respectively get several points, such as, is 1mm, 2mm, 3mm and 4mm at stroke ... several reference values of place's setting, as the filled circles a in Fig. 5, b, c and d;
B) test and after obtaining vibroshock model center building, it is 1mm, 2mm, 3mm and 4mm that damping force test macro detects stroke automatically ... the decay force value that place is corresponding, as A, B, C in Fig. 5, D,
C) when only when meeting A >=a, B >=b, C >=c, D >=d ..., damping force test macro then judges vibroshock test specimen normal (OK), otherwise abnormal (No Good:NG).
On-the-spot test shows, should according to the above-mentioned damping force reference value of the setting critical areas such as different vibroshock machines, Process management level and assembly precision control.Its excess-three surveyed area detection mode is the same.Detect determining program flow process as shown in Figure 6.
Once judge that attenuator model center building critical area is defective, test macro then sends sound and light alarm signal, and prompting is rejected defective vibroshock test specimen in time and returned to the main interface of test macro.Clearly, the selective dependency of criterion is in the control of different vibroshock machines, enterprise's Process management level and assembly precision and judging area etc.According to industry standard, through a large amount of tests, suitable criterion must be found, on-line testing and judge that the model center building of vibroshock is to improve product quality and production efficiency.
Present invention employs vibroshock model center building plumpness 3 and detect determination methods.12 criterions (each region sets 3 points) are set in four potential danger regions of shock absorber and compression, these 12 criterions represent in corresponding displacement place corresponding damping force (F/N) value of critical area, then the range of tolerable variance of criterion is set, four critical areas are the upper left corner in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the lower left corner, the upper right corner and the lower right corner respectively, are namely the distortion section in Fig. 1, Fig. 2, Fig. 3 and Fig. 4 respectively.When 12 criterions and its margin tolerance all drop on show that the ellipse that merit curve comprises is inner time, represent that this shows that merit curve is qualified, judgment result displays OK; If 12 criterions and margin tolerance thereof have any one showing outside the ellipse that merit curve comprises, then judge that this shows that merit curve is defective, judgment result displays NG(No good), and carry out sound and light alarm simultaneously.Clearly, select these 12 criterions to be very important, it depends on the control of the different machine of vibroshock, enterprise's Process management level and assembly precision and judging area selection etc.According to industry standard, through a large amount of tests, suitable criterion must be found, on-line testing and judge that the model center building of vibroshock is to improve vibroshock product quality and production efficiency.
What Figure 7 shows that test macro tests normal vibroshock test specimen shows merit curve and judged result.Experimental test condition is: the speed of servomotor is 0.52m/s, the margin tolerance set is as ± 50N, set 12 criterions successively from left to right, the upper left corner: (5, 300), (15, 500), (25, 700), the lower left corner: (5,-200), (15,-400), (25,-500), the upper right corner: (75, 700), (85, 500), (95, 300), the lower right corner: (75,-500), (85,-400), (95,-200), wherein horizontal ordinate represents the displacement (S/mm) of vibroshock, ordinate represents the damping force (F/N) that displacement is corresponding.12 criterions are all being shown within the ellipse that merit curve comprises as seen from Figure 7, and show that merit curve is smooth and full, according to described above decision method, this vibroshock test specimen show that merit curve is qualified, system result of determination is OK.
What test macro was tested improper vibroshock test specimen shows merit curve as shown in Figure 8,9.Test condition is: the speed of servomotor is 0.52m/s, and margin tolerance is ± 50N, sets 12 criterion value successively from left to right, the upper left corner: (5,300), (15,500), (25,700), the lower left corner: (5 ,-300), (15 ,-500), (25,-700), the upper right corner: (75,700), (85,500), (95,300), the lower right corner: (75,-700), (85 ,-500), (95 ,-300).Fig. 8 be certain vibroshock test specimen lower right corner depression show merit curve, have a criterion point showing outside the ellipse that merit curve comprises in figure, show that merit curve is rough, not full, represent this vibroshock test specimen defectiveness, therefore system judged result is " NG "; Fig. 9 is that the vibroshock test specimen that the upper left corner and the lower right corner all exist depression shows merit curve, obviously can find out that three criterion points in the upper left corner and three criterion points in the lower right corner are all showing outside the ellipse that merit curve comprises, show merit curve severe deformities, therefore system judged result is " NG ".
Use vibroshock model center building plumpness multiple spot of the present invention to detect determination methods and can carry out on-line automatic analysis judgement to car damper model center building.Compared with traditional artificial judgment method, this system improves on-line testing accuracy and efficiency.At present this detection determination methods successful Application in the on-line testing of car damper assembling line end.
Claims (7)
1. car damper model center building plumpness is in a real-time judge method for assembling line, it is characterized in that comprising the steps:
1) respectively get several vibroshock travel position in each region in vibroshock model center building damping force generation four regions jumpy, and set the damping force reference value of vibroshock respectively at these several vibroshock travel position places;
2) test and after obtaining vibroshock model center building, damping force test macro detects decay force value corresponding to several vibroshock travel position places above-mentioned;
3) according to the decay force value of the decay force value reference value of several vibroshock travel position of setting and several vibroshock travel position of detection, damping force test macro judges that whether vibroshock test specimen is normal: when the decay force value of each vibroshock travel position of satisfied detection is more than or equal to the decay force value reference value of each vibroshock travel position of setting, damping force test macro then judges that vibroshock test specimen is normal, otherwise abnormal.
2. car damper model center building plumpness according to claim 1 is in the real-time judge method of assembling line, it is characterized in that the quadrant I that four regions jumpy are the upper left quarters in vibroshock model center building figure occurs above-mentioned vibroshock model center building damping force, the quadrant II of lower left quarter, the quadrant III of upper right quarter, the quadrant IV of right lower quadrant, the displacement of quadrant I is just, damping force is just, the displacement of quadrant II is just, damping force is negative, and the displacement of quadrant III is just, damping force is just, the displacement of quadrant IV is just, damping force is negative.
3. car damper model center building plumpness according to claim 1 is in the real-time judge method of assembling line, it is characterized in that the damping force reference value of above-mentioned vibroshock controls setting according to different vibroshock machine, Process management level and assembly precision, specifically as follows:
1) certain vibroshock corresponding, carries out multispecimen and repeatedly tests the normal model center building of acquisition to determine its normal damping force scope;
2) according to the accuracy requirement of user, the reference value of corresponding this kind of vibroshock damping force is determined.
4. the car damper model center building plumpness according to any one of claims 1 to 3, in the real-time judge method of assembling line, is characterized in that above-mentioned damping force test macro detects decay force value corresponding to several vibroshock travel position places above-mentioned by data acquisition interface.
5. car damper model center building plumpness according to claim 4 is in the real-time judge method of assembling line, it is characterized in that above-mentioned damping force test macro is car damper damping force test macro.
6. car damper model center building plumpness according to claim 5 is in the real-time judge method of assembling line, it is characterized in that above-mentioned data acquisition interface is Contec AD16-16 (PCI) EV high-speed multifunctional analog/digital amount data collecting card.
7. car damper model center building plumpness according to claim 6 is in the real-time judge method of assembling line, it is characterized in that above-mentioned data acquisition interface is triggered by encoder pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210147658.6A CN102706567B (en) | 2012-05-14 | 2012-05-14 | Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210147658.6A CN102706567B (en) | 2012-05-14 | 2012-05-14 | Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102706567A CN102706567A (en) | 2012-10-03 |
| CN102706567B true CN102706567B (en) | 2015-02-18 |
Family
ID=46899510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210147658.6A Expired - Fee Related CN102706567B (en) | 2012-05-14 | 2012-05-14 | Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102706567B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155966B (en) * | 2013-05-15 | 2017-02-08 | 深圳市东仪电子有限公司 | Automobile CDC data acquisition analysis apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3906779A (en) * | 1973-01-17 | 1975-09-23 | Robert Peter Samuel Graham | Shock-absorber test method and apparatus |
| US5648902A (en) * | 1994-07-27 | 1997-07-15 | Hnd Co., Ltd. | Method for measuring a damping force of a shock absorber in a suspension system for a motor vehicle and a measuring system thereof |
| CN1403795A (en) * | 2002-10-17 | 2003-03-19 | 上海工程技术大学 | Failure detecting device and method for automobile damper |
| CN1743829A (en) * | 2005-09-14 | 2006-03-08 | 上海工程技术大学 | Automobile absorber damping force undisintegrated quick-measuring method |
| CN101963547A (en) * | 2010-09-30 | 2011-02-02 | 福建工程学院 | Special dynamic performance measuring and control system for vehicle rubber shock absorber |
-
2012
- 2012-05-14 CN CN201210147658.6A patent/CN102706567B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3906779A (en) * | 1973-01-17 | 1975-09-23 | Robert Peter Samuel Graham | Shock-absorber test method and apparatus |
| US5648902A (en) * | 1994-07-27 | 1997-07-15 | Hnd Co., Ltd. | Method for measuring a damping force of a shock absorber in a suspension system for a motor vehicle and a measuring system thereof |
| CN1403795A (en) * | 2002-10-17 | 2003-03-19 | 上海工程技术大学 | Failure detecting device and method for automobile damper |
| CN1743829A (en) * | 2005-09-14 | 2006-03-08 | 上海工程技术大学 | Automobile absorber damping force undisintegrated quick-measuring method |
| CN101963547A (en) * | 2010-09-30 | 2011-02-02 | 福建工程学院 | Special dynamic performance measuring and control system for vehicle rubber shock absorber |
Non-Patent Citations (3)
| Title |
|---|
| 双筒充气液压减振器的研究;李士松 等;《北方交通大学学报》;19960229;第20卷(第1期);第114-118页 * |
| 艾兆虎 主编.二、摩托车减震器的阻尼特性.《摩托车悬挂装置设计》.人民交通出版社,1996,第117-128页. * |
| 车用双筒液力减振器的建模与试验;王来钱 等;《机电工程》;20101231;第27卷(第12期);第32-35页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102706567A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108519400B (en) | Intelligent detection method and system for grouting fullness of prestressed beam | |
| CN2819235Y (en) | On-line quality state monitoring system of electromagnetic component | |
| CN102809660B (en) | Method for detecting fatigue damage during automobile axle housing reproduction | |
| CN102980894B (en) | Steel structure special type weld nondestructive detection system and method | |
| CN1766587A (en) | Real-time quality detection and alarm method for car body spot welding | |
| CN102735747A (en) | Defect quantitative identification method of high-speed magnetic flux leakage inspection of high-speed railway rails | |
| CN109489978A (en) | A kind of multi-source data association analysis method of a variety of discharge detection methods of diesel locomotive based on V-a operating condition | |
| CN102323059B (en) | Shaft pivoted hub bearing unit monitoring system for axial pivoting force and displacement and method | |
| CN112131797B (en) | Main shaft bearing life prediction and reliability assessment method based on stress analysis | |
| CN101968463A (en) | Method for recognizing pipeline spiral weld seam type crack defect through triaxial magnetic leakage internal detection line signal | |
| CN104142176A (en) | Air conditioner vibration detecting device | |
| CN102706567B (en) | Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line | |
| CN107748072B (en) | Method for identifying impact noise of automobile suspension shock absorber | |
| CN104007182B (en) | A kind of method utilizing acoustic emission signal frequency spectrum quantitatively to detect nugget formation in resistance spot welding forming core quality | |
| CN202013271U (en) | Service life testing system for electromagnetic valve | |
| CN111966062A (en) | Automatic judgment method for quality state of self-piercing riveting process | |
| CN103487136B (en) | A kind of method utilizing resistance spot welding process Acoustic Emission Signal Energy equivalent quantitatively to detect welding splash | |
| CN106290152A (en) | A kind of in-situ detection method for composite complex profile bonding quality | |
| CN110406559A (en) | A method of identification railway track structure modal characteristics | |
| CN107335908A (en) | The automation random device found for feature and its use in repetitive process | |
| CN103675103B (en) | A kind of method utilizing resistance spot welding process Acoustic Emission Signal Energy equivalent quantitatively to detect nugget crackle | |
| CN116188860A (en) | Method and device for identifying structural monitoring abnormal data with parameters adjusted in self-adaptive mode | |
| CN112927498B (en) | Data analysis method and device based on intelligent traffic monitoring | |
| CN110823057B (en) | Detection tool and detection method for detecting length of workpiece | |
| CN108678939B (en) | Method and system for detecting steam etching residue value of water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20180514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |