CN104280291A - Normal loading method for sinking resistance test on automobile outer covering part - Google Patents
Normal loading method for sinking resistance test on automobile outer covering part Download PDFInfo
- Publication number
- CN104280291A CN104280291A CN201410625982.3A CN201410625982A CN104280291A CN 104280291 A CN104280291 A CN 104280291A CN 201410625982 A CN201410625982 A CN 201410625982A CN 104280291 A CN104280291 A CN 104280291A
- Authority
- CN
- China
- Prior art keywords
- resistance test
- dent resistance
- vehicle exterior
- cladding element
- exterior cladding
- 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.)
- Pending
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a normal loading method for a sinking resistance test on an automobile outer covering part. The method comprises the following steps: determining a sinking resistance measuring point on a to-be-tested automobile outer covering part; selecting three points nearby the measuring point; acquiring spatial coordinates of the three points; calculating a plane and normal determined by the three points as well as an angle between the normal and an integral coordinate axis X, an integral coordinate axis Y as well as an integral coordinate axis Z; and realizing the normal loading of the measuring point when the direction of a measuring point is consistent with the normal direction of the determined plane. The spatial positioning is carried out by utilizing the three-coordinate measuring technology, the normal loading capable of realizing the sinking resistance test on one point on a curved surface structure of the automobile outer covering part is established, so that the accuracy of the sinking resistance test result is improved, and the further research on the sinking resistance and the establishment of the sinking resistance experiment standard can be greatly promoted.
Description
Technical field
The invention belongs to Automobile Plate applied technical field, relate to a kind of automobile panel dent resistance testing experiment method, be specifically applicable to a kind of technical method of the vertical loading in vehicle exterior cladding element dent resistance testing experiment.
Background technology
Dent resistance be automobile panel bear outside quiet, dynamic load effect (as artificial touch and pressing, advance in Stone Shock), the flexure of opposing depression and local indenture distortion, keep the ability of shape, be deeper performance requirement after forming property.It affects body outer panel as an important indicator of the surface quality such as car door, hood, top cover and usability and characteristic.If the dent resistance of covering is not enough, vehicle exterior quality in use will decline greatly, and will produce significantly vibration, noise, very easily cause client to complain.At present, the low side vehicle of low side depot is paid close attention to little to the dent resistance of covering, but middle and high end depot, high-end vehicle require higher to the dent resistance of outer covering piece.
Along with the development of automotive light weight technology, the application on body of a motor car of high strength, sheet steel is more and more general, but reduction thickness of slab also makes vehicle body sag resistant problem in use appear suddenly out.Therefore, how to improve the sag resistant performance of outer covering piece, to not reducing automotive quality and class while body lightening, be depot and steel mill must faced by important topic.
At present, domestic and international scientific research institutions, depot and steel mill are theoretical to the dent resistance of vehicle exterior cladding element, dent resistance test method assesses with inspection and dent resistance influence factor has carried out large quantifier elimination.But because dent resistance experiment does not also have standard, respective test method, parameter disunity, the requirement of inspection assessment is also different, particularly for when on the curved-surface structure of vehicle exterior cladding element, certain some dent resistance is tested, due to cannot know fast the Surface Method of measurement point to, the normal direction being therefore difficult to realize measurement point loads test.Will realize the vertical loading to covering certain point in pieces at present, the roughly judgement that main dependence is artificial, error is very large, has a huge impact the accuracy of experimental result.
China Patent No. NO.CN1493863 discloses about automobile component part antisink property testing method, comprises method of addition and single stage method, but does not relate to the problem of loading direction.
Summary of the invention
The object of the invention is to the deficiency for existing test condition, set up a kind of certain some dent resistance method of testing that can to realize on vehicle exterior cladding element curved-surface structure to the thoughts and methods loaded, the Obtaining Accurate for dent resistance test figure provides convenient.Principle of the present invention: get 3 points near certain measurement point on vehicle exterior cladding element, determine the principle of a plane according to 3, can determine a space plane with these 3, plane can obtain the normal direction of this plane after determining.If this distance of 3 is enough near, the planar process calculated to, the Surface Method being measurement point to.By adjusting the direction of measuring head with this planar process to consistent, can realize loading the normal direction of measurement point testing.
Concrete technical scheme is as follows:
Vehicle exterior cladding element dent resistance test method(s), to the method loaded, comprises the steps:
(1) on vehicle exterior cladding element to be tested, a dent resistance measurement point is determined;
(2) 3 points are chosen at measurement point annex;
(3) this volume coordinate of 3 is obtained;
(4) calculate 3 planes and normal direction determined, and normal direction and overall coordinate axis X-axis, Y-axis, Z axis angle;
(5) measuring head direction and the planar process determined are to consistent, realize loading the normal direction of measurement point.
Further, described in step (2) 3 near as far as possible.
Further, three-dimensional optical measuring instrument is utilized to obtain this volume coordinate of 3 in step (3).
Further, by regulating the angle of measuring head in overall coordinate in step (5), measuring head direction is reached with the planar process determined to consistent.
Further, vehicle exterior cladding element to be determined is placed on test platform in (1) by step, and fixes with fixture.
Further, regulate measuring head direction in step (5), make the angle of itself and X, Y, Z tri-coordinate axis identical with above angle, measuring head loading direction is identical with measurement point direction, realizes vertical loading.
Further, based on the dent resistance testing machine of full-sized car part.
Further, this equipment is portal frame construction, and can realize the dent resistance test of the optional position of the large-scale auto body panels of 2000*2000mm size, measuring head can move in optional position, space.
Compared with currently available technology, the present invention utilizes three-dimensional coordinates measurement technology to carry out space orientation, set up a kind of normal direction when can to realize on vehicle exterior cladding element curved-surface structure certain some dent resistance test to load, thus improve the accuracy of dent resistance test result, strong has promoted deeply carrying out of dent resistance research, and the foundation of dent resistance experimental standard.
Accompanying drawing explanation
Fig. 1 is that normal direction of the present invention loads instantiation (partial enlarged drawing)
Embodiment
Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in numerous embodiments of the present invention.
The present invention is the dent resistance testing machine based on full-sized car part, and this equipment is portal frame construction, and can realize the dent resistance test of the optional position of the large-scale auto body panels of 2000*2000mm size, measuring head can move in optional position, space.The determination of volume coordinate is undertaken testing and calculating by optical three-coordinate instrument.Embodiment of the present invention as shown in Figure 1.Suppose the actual normal direction OP of this point geometry curved surface.In order to the Surface Method of trying to achieve this point to, choose close as far as possible A, B, C tri-point at measurement point O annex, a plane ABC can be determined, the normal direction OP' of this plane can be calculated for these 3.If A, B, C of choosing 3 is more close to measurement point O, then normal direction OP' is more close to OP.As the enough near measurement point O of A, B, C 3, then OP' and OP overlaps.Therefore, replacement OP can be similar to by trying to achieve OP'.Utilize three-coordinates measuring machine can obtain the volume coordinate of A, B, C 3, try to achieve OP' normal direction and the angle with global coordinate system X, Y, Z, finally by the adjustment angle of measuring head in overall coordinate, reach measuring head loading direction and OP direction ' consistent, namely realize the normal direction loading of O point.
The present invention is the dent resistance testing machine based on full-sized car part, and this equipment is portal frame construction, and can realize the dent resistance test of the optional position of the large-scale auto body panels of 2000*2000mm size, measuring head can move in optional position, space.The determination of volume coordinate is undertaken testing and calculating by optical three-coordinate instrument.
Embodiment:
1) vehicle exterior cladding element S to be determined is placed on test platform, and fixes with fixture;
2) determine dent resistance measurement point O on part, and near O point, choose near as far as possible A, B, C tri-point;
3) three-coordinate measuring method is utilized, the normal direction OP ' of Calculation Plane ABC and the angle with X, Y, Z tri-coordinate axis thereof;
4) regulate measuring head direction, make the angle of itself and X, Y, Z tri-coordinate axis identical with above angle;
5) measuring head loading direction is identical with measurement point O direction OP, realizes vertical loading.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or directly apply to other occasion, all within protection scope of the present invention without improving.
Claims (8)
1. vehicle exterior cladding element dent resistance test method(s) is to the method loaded, and it is characterized in that, comprises the steps:
(1) on vehicle exterior cladding element to be tested, a dent resistance measurement point is determined;
(2) 3 points are chosen at measurement point annex;
(3) this volume coordinate of 3 is obtained;
(4) calculate 3 planes and normal direction determined, and normal direction and overall coordinate axis X-axis, Y-axis, Z axis angle;
(5) measuring head direction and the planar process determined are to consistent, realize loading the normal direction of measurement point.
2. vehicle exterior cladding element dent resistance test method(s) as claimed in claim 1 is to the method loaded, and it is characterized in that, described in step (2) 3 near as far as possible.
3. vehicle exterior cladding element dent resistance test method(s) as claimed in claim 1 or 2 is to the method loaded, and it is characterized in that, utilizes three-dimensional optical measuring instrument to obtain this volume coordinate of 3 in step (3).
4. the vehicle exterior cladding element dent resistance test method(s) according to any one of claim 1-3 is to the method loaded, it is characterized in that, by regulating the angle of measuring head in overall coordinate in step (5), reach measuring head direction with the planar process determined to consistent.
5. the vehicle exterior cladding element dent resistance test method(s) according to any one of claim 1-3 is to the method loaded, and it is characterized in that, vehicle exterior cladding element to be determined is placed on test platform in (1) by step, and fixes with fixture.
6. the vehicle exterior cladding element dent resistance test method(s) according to any one of claim 1-5 is to the method loaded, it is characterized in that, measuring head direction is regulated in step (5), make the angle of itself and X, Y, Z tri-coordinate axis identical with above angle, measuring head loading direction is identical with measurement point direction, realizes vertical loading.
7. the vehicle exterior cladding element dent resistance test method(s) according to any one of claim 1-6, to the method loaded, is characterized in that, based on the dent resistance testing machine of full-sized car part.
8. vehicle exterior cladding element dent resistance test method(s) as claimed in claim 7 is to the method loaded, it is characterized in that, this equipment is portal frame construction, can realize the dent resistance test of the optional position of the large-scale auto body panels of 2000*2000mm size, measuring head can move in optional position, space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410625982.3A CN104280291A (en) | 2014-11-08 | 2014-11-08 | Normal loading method for sinking resistance test on automobile outer covering part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410625982.3A CN104280291A (en) | 2014-11-08 | 2014-11-08 | Normal loading method for sinking resistance test on automobile outer covering part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104280291A true CN104280291A (en) | 2015-01-14 |
Family
ID=52255389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410625982.3A Pending CN104280291A (en) | 2014-11-08 | 2014-11-08 | Normal loading method for sinking resistance test on automobile outer covering part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104280291A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842931A (en) * | 2019-07-30 | 2020-02-28 | 南京埃斯顿机器人工程有限公司 | Tool posture adjusting method applied to robot punching |
| CN112414662A (en) * | 2020-11-10 | 2021-02-26 | 上海飞机制造有限公司 | Impact test device and positioning method thereof |
| CN114136563A (en) * | 2021-12-15 | 2022-03-04 | 神龙汽车有限公司 | Finger pressure rigidity automatic testing device and testing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575653Y (en) * | 2002-10-31 | 2003-09-24 | 宝山钢铁股份有限公司 | Three-phase flow multi-speed corrosion analog testing device for oil field gathering & transporting system |
| CN203824825U (en) * | 2014-03-13 | 2014-09-10 | 广州汽车集团股份有限公司 | Device for loading sinking resistance performance of coverage piece outside automobile body and equipment for testing sinking resistance performance of coverage piece outside automobile body |
-
2014
- 2014-11-08 CN CN201410625982.3A patent/CN104280291A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575653Y (en) * | 2002-10-31 | 2003-09-24 | 宝山钢铁股份有限公司 | Three-phase flow multi-speed corrosion analog testing device for oil field gathering & transporting system |
| CN203824825U (en) * | 2014-03-13 | 2014-09-10 | 广州汽车集团股份有限公司 | Device for loading sinking resistance performance of coverage piece outside automobile body and equipment for testing sinking resistance performance of coverage piece outside automobile body |
Non-Patent Citations (1)
| Title |
|---|
| 王亮 等: "车身覆盖件抗凹性试验方法及系统", 《北京航空航天大学学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842931A (en) * | 2019-07-30 | 2020-02-28 | 南京埃斯顿机器人工程有限公司 | Tool posture adjusting method applied to robot punching |
| CN110842931B (en) * | 2019-07-30 | 2022-03-22 | 南京埃斯顿机器人工程有限公司 | Tool posture adjusting method applied to robot punching |
| CN112414662A (en) * | 2020-11-10 | 2021-02-26 | 上海飞机制造有限公司 | Impact test device and positioning method thereof |
| CN112414662B (en) * | 2020-11-10 | 2023-09-26 | 上海飞机制造有限公司 | Impact test device and positioning method thereof |
| CN114136563A (en) * | 2021-12-15 | 2022-03-04 | 神龙汽车有限公司 | Finger pressure rigidity automatic testing device and testing method |
| CN114136563B (en) * | 2021-12-15 | 2024-04-23 | 神龙汽车有限公司 | Automatic finger pressure rigidity testing device and testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xavier et al. | Stereovision measurements on evaluating the modulus of elasticity of wood by compression tests parallel to the grain | |
| Peng et al. | Residual stress measurement combining blind-hole drilling and digital image correlation approach | |
| CN102539101B (en) | Force limit control vibration test system and test method | |
| CN104280291A (en) | Normal loading method for sinking resistance test on automobile outer covering part | |
| Acero et al. | Verification of an articulated arm coordinate measuring machine using a laser tracker as reference equipment and an indexed metrology platform | |
| Hou et al. | A new trifilar pendulum approach to identify all inertia parameters of a rigid body or assembly | |
| CN109443670A (en) | A kind of body of a motor car surface indentation and dent test method | |
| CN204359225U (en) | A kind of Multifunctional check tool of automobile buffer beam body | |
| CN106468623A (en) | Power assembly suspension system rigid body mode parameter test method under a kind of whole vehicle state | |
| CN103868667A (en) | Automobile plate constraint mode test fixture and method | |
| Cuesta et al. | A new concept of feature-based gauge for coordinate measuring arm evaluation | |
| CN204944363U (en) | A kind of automotive back door opening inspection device | |
| Stumpf et al. | The new aerodynamic and aeroacoustic wind tunnel of the Porsche AG | |
| Li et al. | New approach for estimating international roughness index based on the inverse pseudo excitation method | |
| CN204301670U (en) | Adjustable air throttle board plane degree measuring instrument | |
| CN108204789A (en) | For detecting the device and detection method of the shape splicing of heavy-calibre planar optical elements face | |
| CN101949775B (en) | Measuring method of ground reflection noise source | |
| CN104729384B (en) | A kind of gearbox leg detection means | |
| CN102750412A (en) | Intelligent load arrangement system and method thereof in bridge load test | |
| CN202033196U (en) | Visual field measuring device | |
| CN112729731B (en) | Machine tool sensitive part identification method and device based on dynamic stiffness sensitivity | |
| CN204963845U (en) | Measuring device meets an emergency in space based on triaxial inclination location | |
| Kim et al. | Noncontact bending and torsional stiffness estimation model for automobile frames based on 3D displacements | |
| CN204359222U (en) | A kind of cubing of right support of fascia board girder | |
| CN106271606B (en) | A kind of unmanned aerial vehicle onboard radar elevating mechanism fixtures for rapid assembly and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150114 |