CN109883832A - A kind of detection method of automobile door structure sag detection - Google Patents
A kind of detection method of automobile door structure sag detection Download PDFInfo
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- CN109883832A CN109883832A CN201910180128.3A CN201910180128A CN109883832A CN 109883832 A CN109883832 A CN 109883832A CN 201910180128 A CN201910180128 A CN 201910180128A CN 109883832 A CN109883832 A CN 109883832A
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- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000005259 measurement Methods 0.000 claims abstract description 40
- 238000012795 verification Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000000691 measurement method Methods 0.000 claims abstract description 8
- 238000013507 mapping Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000007665 sagging Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
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- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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Abstract
The present invention relates to door sag detection fields, and specifically a kind of detection method of automobile door structure sag detection, automobile door structure are connected by body hinge with body structure；The detection method includes verification experimental verification measurement method and CAE analog analysing method.The present invention on automobile door structure by increasing counterweight, it realizes and sagging load is increased to car door, the amount of moving down of car door corresponding position is measured by dial gauge simultaneously, the sag of automobile door structure can be learnt by calculating, repeatedly measurement can obtain the sink-resistance performance of car door by arranging data simultaneously, better meet needs of production；The automobile door structure amount of moving down measured simultaneously by CAE analog analysing method is compared with the automobile door structure amount of moving down that verification experimental verification measurement method measures, and guarantees the accuracy of detection method.
Description
Technical field
The present invention relates to door sag detection field, the detection side that specifically a kind of automobile door structure sag detects
Method.
Background technique
It is a kind of phenomenon that vehicle frequently encounters in assembly, test and use process that bus door structure is sagging.It is led
Wanting the form of expression is the sagging deflections under automobile door structure door caused by being self-possessed is instantaneous sagging and vertical outer load effect.This deformation meeting
So that car door is generated friction with adjacent elements during use, even will affect the normal switching-off of car door when serious, close
It is not tight or be difficult to the phenomenon that closing.Therefore in the design process of car, sink-resistance performance will be as automobile door structure systematicness
One of very important performance parameter in energy；So a kind of detection method that can be used for the detection of automobile door structure sag is present
It is required.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of for detecting the inspection of automobile door structure sag
Survey method.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of detection method of automobile door structure sag detection, automobile door structure are connected by body hinge with body structure
It connects；The detection method includes verification experimental verification measurement method；The verification experimental verification measurement method includes the following steps
(1) fixed body structure to be measured；
(2) automobile door structure to be detected is chosen, and determines the load(ing) point and measurement point of the car door；
(3) after the completion of step (2), the dial gauge for measuring the car door amount of moving down is connected in measurement point, is connected to dial gauge
After the completion, load(ing) point applies vertical force to load(ing) point to realize by increasing counterweight, the car door measurement point surveyed by dial gauge
The amount of moving down, and record；
(4) after the completion of step (3), the detection for car door amount of moving down is completed, if necessary to detect on vehicle body other
Automobile door structure, repeat step (2)-(3).
In the step (2), load(ing) point and measurement point are at two positions of same automobile door structure；And load(ing) point with
Distance of the measurement point apart from body hinge is identical.
Measurement point in the step (2) passes through in load(ing) point projection mapping to automobile door structure；And the load(ing) point and
In in same level, the measurement point and load(ing) point are on same circumference measurement point.
The detection method further includes CAE analog analysing method；The CAE analog analysing method operate when and verification experimental verification
Method chooses same measurement point and load(ing) point.
The automobile door structure amount of moving down for using the CAE analog analysing method to measure and verification experimental verification method is used to measure
The automobile door structure amount of moving down is compared.
Load(ing) point in the step (2) is at the door lock in automobile door structure.
Measurement point in the step (2) is on door skin.
The measurement point is on the lateral surface of door skin.
The present invention has the advantages that
The invention discloses a kind of detection methods for the detection of automobile door structure sag, by increasing on automobile door structure
Counterweight is realized and increases sagging load to car door, while the amount of moving down of car door corresponding position is measured by dial gauge, passes through calculating
It can learn the sag of automobile door structure, while repeatedly measurement can obtain the sink-resistance performance of car door by arranging data, more
Good meets needs of production.
Detailed description of the invention
Below to each width attached drawing of description of the invention expression content and figure in label be briefly described:
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is structural schematic diagram when the present invention uses.
Label in above-mentioned figure is equal are as follows:
1, automobile door structure, 2, vehicle body, 3, measurement point, 4, load(ing) point.
Specific embodiment
A specific embodiment of the invention is made further detailed below against attached drawing by the description to optimum embodiment
Thin explanation.
A kind of detection method of automobile door structure sag detection, automobile door structure are connected by body hinge with body structure 2
It connects；The detection method includes verification experimental verification measurement method；The verification experimental verification measurement method includes the following steps
(1) fixed body structure 2 to be measured；
(2) automobile door structure 1 to be detected is chosen, and determines the load(ing) point 4 and measurement point 3 of the car door；
(3) after the completion of step (2), the dial gauge 5 for measuring the car door amount of moving down is connected in measurement point 3, is connected to dial gauge 5
After the completion of connecing, load(ing) point 4 applies vertical force to load(ing) point 4 to realize by increasing counterweight, is measured by the car door that dial gauge 5 is surveyed
The amount of moving down at point 3, and record；
(4) after the completion of step (3), the detection for car door amount of moving down is completed, if necessary to detect on vehicle body other
Automobile door structure 1, repeat step (2)-(3).
Practical automobile door structure 1 includes door skin and inner plate of car door, such structure is based on, in order to preferably measure car door
The sag of structure 1, the invention discloses a kind of detection methods for the detection of automobile door structure sag, in use, measuring
3 connection dial gauge 5 of point, dial gauge 5 is a known features, and the connection type of dial gauge 5 is also well-known technique, and dial gauge 5 is set
The purpose set is to increase counterweight in load(ing) point 4 when use, so that vehicle to preferably realize the subsequent amount of moving down of automobile door structure 1
Door 1 is by downward external force, so that the car door amount of moving down, when can be used for simulating automobile door structure structure 1 by external force
Sag, and then realize automobile door structure 1 sag detection.
Preferably, load(ing) point 4 and measurement point 3 are in same automobile door structure 1 in heretofore described step (2)
At two positions；And distance of the load(ing) point 4 with measurement point 3 apart from body hinge is identical；Mode of operation in this way, make
It obtains load(ing) point 4 and measurement point 3 is at the two different positions of automobile door structure 1, avoid occurring even if load(ing) point 4 local rigid
Degree is insufficient, generates the biggish displacement in part, will not have a huge impact to sagging result；It preferably protects to a certain extent
Demonstrate,prove the precision detected to 1 sag of automobile door structure；As bigger optimization, the measurement point 3 in heretofore described step (2) is logical
It crosses in load(ing) point 4 projection mapping to automobile door structure 1；And the load(ing) point 4 and measurement point 3 are in same level, described
Measurement point 3 and load(ing) point 4 are on same circumference；Such setting, so that load(ing) point 4 arrives the distance and survey of body hinge axis
Amount 3 being equidistant to body hinge axis of point, so that since the vertical outer load applied on door causes the change generated at hinge
Shape is transmitted to the variation of the value at measurement point 3 less, because being here mainly longitudinal direction of car displacement, at measurement point 3 and load(ing) point 4
In on same plane, because the different bring errors of position can remove substantially；The present invention is by guaranteeing 4 He of load(ing) point simultaneously
Measurement point 3 arrives the distance of body hinge axis, and measurement outside plate stringcourse in conventional method is avoided nearby to take a little so that measurement point 3 arrives hinge
The distance of chain axis differs larger problem at a distance from load(ing) point 4 to hinge axes, preferably guarantees to a certain extent real
Border detection accuracy.
Preferably, heretofore described detection method further includes CAE analog analysing method；The CAE sunykatuib analysis
Same measurement point 3 and load(ing) point 4 are chosen with verification experimental verification method when method operates；CAE analog analysing method can be used for testing
Card, while the component that CAE analog analysing method needs is less, can conveniently detect to automobile door structure 1；Simultaneously originally
Invention automobile door structure 1 amount of moving down and the vehicle that uses verification experimental verification method to measure use that the CAE analog analysing method measures
1 amount of moving down of door is compared, and the amount of moving down that can two ways measured is compared, and plays the work being mutually authenticated
With, preferably ensure that a certain extent to 1 sag of automobile door structure detection accuracy.
Preferably, the load(ing) point 4 in heretofore described step (2) is at the door lock in automobile door structure 1；It is convenient
Counterweight increase and decrease, facilitates subsequent operation.
Preferably, the measurement point 3 in heretofore described step (2) is on door skin；Because of outside plate intensity
It is larger, facilitate the connection of dial gauge 5, while the measurement point 3 is on the lateral surface of door skin；Facilitate the reading of data,
Also facilitate practical operation.
Dial gauge 5 can increase body structure 2 using structure as disclosed in fig. 2, while in the present invention in the present invention
When adding counterweight, balance weight mechanism 6 can be used, balance weight mechanism 6 includes hook and clump weight, can be connected using hook with door lock
It connects, increases clump weight on hook to realize and apply external force operation to automobile door structure 1, such as shown in Fig. 2.While in order to reduce vehicle
Door 1 is cheap, further includes cylinder part 7 in detection method disclosed by the invention, and cylinder part 7 is arranged on the inside of car door, is used for
Automobile door structure 1 is resisted on the inside of automobile door structure 1, plays the role of limit, avoids automobile door structure 1 from rotating, while in order to avoid gas
Influence of the cylinder part 7 to detection structure, piston rod is only contacted without connecting with car door, in turn with car door in cylinder part 7 in the present invention
It avoids the presence of cylinder part 7 and influences the sagging of automobile door structure 1.
Obviously present invention specific implementation is not subject to the restrictions described above, as long as using method concept and skill of the invention
The improvement for the various unsubstantialities that art scheme carries out, it is within the scope of the present invention.
Claims (8)
1. a kind of detection method of automobile door structure sag detection, automobile door structure are connected by body hinge with body structure；
It is characterized in that, the detection method includes verification experimental verification measurement method；The verification experimental verification measurement method includes the following steps
(1) fixed body structure to be measured；
(2) automobile door structure to be detected is chosen, and determines the load(ing) point and measurement point of the car door；
(3) after the completion of step (2), the dial gauge for measuring the car door amount of moving down is connected in measurement point, connects and completes to dial gauge
Afterwards, load(ing) point applies vertical force to load(ing) point to realize by increasing counterweight, under the car door measurement point surveyed by dial gauge
Shifting amount, and record；
(4) after the completion of step (3), the detection for a car door amount of moving down is completed, if necessary to detect other vehicles on vehicle body
Door repeats step (2)-(3).
2. a kind of detection method of automobile door structure sag detection according to claim 1, which is characterized in that the step
(2) in, load(ing) point and measurement point are at two positions of same automobile door structure；And load(ing) point and measurement point are cut with scissors apart from car door
The distance of chain is identical.
3. a kind of detection method of automobile door structure sag detection according to claim 2, which is characterized in that the step
(2) measurement point in passes through in load(ing) point projection mapping to automobile door structure；And the load(ing) point and measurement point are in same water
In plane, the measurement point and load(ing) point are on same circumference.
4. a kind of detection method of automobile door structure sag detection according to claim 1, which is characterized in that the detection
Method further includes CAE analog analysing method；Same survey is chosen when the CAE analog analysing method operates with verification experimental verification method
Amount point and load(ing) point.
5. a kind of detection method of automobile door structure sag detection according to claim 4, which is characterized in that using institute
State the automobile door structure amount of moving down that CAE analog analysing method measures and the automobile door structure amount of moving down that is measured using verification experimental verification method into
Row compares.
6. a kind of detection method of automobile door structure sag detection according to claim 1, which is characterized in that the step
(2) load(ing) point in is at the door lock in automobile door structure.
7. a kind of detection method of automobile door structure sag detection according to claim 3, which is characterized in that the step
(2) measurement point in is on door skin.
8. a kind of detection method of automobile door structure sag detection according to claim 7, which is characterized in that the measurement
Point is on the lateral surface of door skin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180128.3A CN109883832B (en) | 2019-03-11 | 2019-03-11 | Detection method for detecting sag of vehicle door structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180128.3A CN109883832B (en) | 2019-03-11 | 2019-03-11 | Detection method for detecting sag of vehicle door structure |
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| CN109883832A true CN109883832A (en) | 2019-06-14 |
| CN109883832B CN109883832B (en) | 2021-07-30 |
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|---|---|---|---|---|
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| CN101916322A (en) * | 2010-09-07 | 2010-12-15 | 上海奕代汽车技术有限公司 | Optimization design method for sagging problem of car door based on CAE (Computer Aided Engineering) structural analysis |
| CN202145162U (en) * | 2011-07-12 | 2012-02-15 | 上海宏昌汽配有限公司 | Vehicle door hinge assembly sinking test booster |
| CN203615908U (en) * | 2013-10-25 | 2014-05-28 | 北京汽车股份有限公司 | Device for measuring sinkage quantity of automobile door |
| CN204177562U (en) * | 2014-09-30 | 2015-02-25 | 北京汽车股份有限公司 | Car door sinking test stand |
| CN204329928U (en) * | 2014-12-20 | 2015-05-13 | 北汽银翔汽车有限公司 | A kind of sagging measurement frock based on car door durable test |
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2019
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| KR100439808B1 (en) * | 1997-12-19 | 2004-09-30 | 현대자동차주식회사 | Door-deflection measuring device for vehicle for simplifying measurement of door-deflection degree |
| CN101916322A (en) * | 2010-09-07 | 2010-12-15 | 上海奕代汽车技术有限公司 | Optimization design method for sagging problem of car door based on CAE (Computer Aided Engineering) structural analysis |
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