CN114235430A - High-low temperature pendulum bob test method for automobile front-rear end protection device - Google Patents
High-low temperature pendulum bob test method for automobile front-rear end protection device Download PDFInfo
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- CN114235430A CN114235430A CN202111306780.9A CN202111306780A CN114235430A CN 114235430 A CN114235430 A CN 114235430A CN 202111306780 A CN202111306780 A CN 202111306780A CN 114235430 A CN114235430 A CN 114235430A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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Abstract
The invention provides a high-low temperature pendulum test method for a front-end and rear-end protection device of an automobile, which comprises the following steps: s1, cutting the head or tail of the vehicle from the standard body-in-white assembly, and mounting the head or tail of the vehicle on a moving trolley to form a rack; s2, providing a pendulum bob device, and carrying out pendulum bob weight box weight balancing according to the maximum value in the whole vehicle service mass; s3, balancing the mobile trolley according to the maximum value in the whole trolley servicing quality; s4, forming a test piece; s5, arranging a temperature sensor; s6, placing the test piece into a temperature box for high-temperature heat preservation or low-temperature heat preservation; s7, pulling the test piece out of the temperature box to perform pendulum test; and S8, after the pendulum test is finished, evaluating the test piece. The invention adopts a mode of placing test pieces into the temperature box for storage to simulate various extreme environment temperatures in different regions in China for collision tests, and is used for improving the collision resistance of the front and rear end protection devices of the automobile in the extreme environment.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a high-low temperature pendulum test method for an automobile front and rear end protection device.
Background
GB1734-1998 front and rear end protective device of car is a mandatory law related to low-speed collision of the car, the purpose is to guarantee many components mounted on front and rear ends of the car, after collision, keep the function normal, make the car after the low-speed collision accident, can also go to the maintenance point nearby safely and repair; regardless of whether the plastic front and rear end parts are damaged or not, regardless of the maintenance economy of the vehicle. The automobile front and rear end protection device refers to parts such as a front bumper, a rear bumper, an air inlet grille, a decorative strip, a water tank frame and the like.
The default test environment temperature of the regulation GB1734-1998 automobile front and rear end protection device is room temperature. However, because the climate in China has large temperature difference in four seasons, the actual temperature of the automobile running environment is increased from low temperature of ice and snow of minus ten degrees to high temperature of four and fifty degrees, and the heat of an automobile engine. Thus, at low speeds, collisions in these two environments will become of practical significance.
The front and rear end protection devices of the automobile are made of materials which are very sensitive to temperature change, and many parts of the automobile head and the automobile tail which cannot be damaged by low-speed collision at normal temperature can show different performances at high temperature and low temperature, so that the plastic front and rear end parts are irreversibly damaged. Thereby increasing the maintenance cost of the car owner and reducing the satisfaction degree of the car user.
Disclosure of Invention
The invention aims to provide a high-low temperature pendulum test method for automobile front and rear end protection devices, and therefore the problems that in the prior art, collision conditions under high-temperature and low-temperature conditions are not considered in the pendulum test method for the automobile front and rear end protection devices, the maintenance cost is high, and the satisfaction degree of automobile users is reduced are solved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the method for testing the high-low temperature pendulum bob of the automobile front-end and rear-end protection device comprises the following steps: s1, cutting the head or the tail of the vehicle from the standard body-in-white assembly, fixing the head or the tail of the vehicle on a fixing plate to form the standard head or the standard tail of the vehicle, and mounting the standard head or the tail of the vehicle on a moving trolley to form a rack; s2, providing a pendulum device comprising a pendulum bracket, a pendulum head and a pendulum weight box, and carrying out weight balancing on the pendulum weight box according to the maximum value in the vehicle service mass; s3, balancing the movable trolley according to the maximum value in the whole trolley servicing mass; s4, mounting parts on the standard locomotive or the standard locomotive tail to form a test piece; s5, arranging a temperature sensor on the test piece; s6, placing the test piece into a temperature box for high-temperature heat preservation or low-temperature heat preservation; s7, pulling out the heat-insulated test piece from the temperature box, quickly aligning the heat-insulated test piece with a pendulum bob head, and carrying out a pendulum bob test; and S8, after the pendulum test is finished, evaluating the test piece to obtain the low-speed collision conditions of the front and rear end protection devices of the automobile in high-temperature and low-temperature environments respectively.
In step S2, the weight of the pendulum weight box is calculated according to the formula Mx1 ═ Max- (M + M1), where Max is the maximum mass of the entire vehicle, M is the effective mass of the pendulum support, M1 is the effective mass of the pendulum head, and the required weight Mx1 of the pendulum weight box is calculated.
In step S3, aiming at the front-end high-low temperature pendulum bob test, performing moving trolley counterweight according to a formula Mx2 ═ (Max +225kg) × 90% -moving trolley weight-standard locomotive weight, and calculating to obtain a required moving trolley counterweight Mx 2; aiming at a rear-end high-low temperature pendulum bob test, according to a formula Mx2 ═ Max +225kg x 95% -mobile car weight-standard car tail weight, mobile car counterweight is carried out, and the required mobile car counterweight Mx 2' is obtained through calculation.
Step S4 includes: and a front wall assembly and a front bumper skin are installed on the standard locomotive, or a rear wall assembly and a rear bumper skin are installed on the standard locomotive.
The cowl assembly includes: the device comprises a water tank frame, a main cross beam, an auxiliary cross beam, an air guide piece and a headlamp bracket.
Step S5 includes: a recessed area is formed inside the bumper skin, and the temperature sensor is disposed in the recessed area.
Step S6 includes: and putting the test piece or the test piece and the moving trolley into a temperature box for heat preservation for more than 4 hours.
In the step S6, the high temperature in the temperature box is set to 65-85 ℃ for the high temperature pendulum test, and the low temperature in the temperature box is set to-30-10 ℃ for the low temperature pendulum test. Alternatively, the high temperature was set at 75 ℃ and the low temperature at-20 ℃ for 4 hours. It should be understood that other temperature conditions may be selected depending on the actual situation.
Step S7 includes: 1) calibrating the speed of the pendulum bob before testing, recording the stretching inclination angle, and lifting the weight box of the pendulum bob to the angle; 2) preparing a temperature measuring instrument and a camera; 3) placing the scale on a line corresponding to the first contact surface to be struck so as to position a striking position; 4) pulling out the heat-insulated test piece from the temperature box, and quickly aligning the test piece with a pendulum bob striking head; 5) connecting a temperature sensor line to a temperature measuring instrument, and monitoring temperature change; 6) turning on the camera; 7) releasing the pendulum bob when the test temperature is reached, completing a pendulum bob striking test, and recording a test number, the test temperature and the striking speed; 8) turning off the camera and the temperature measuring instrument; 9) and (6) recording the photographed image.
Step S8 includes: firstly, maintaining a bumper skin on a rack, and observing whether visible external damage exists or not by naked eyes; the bumper skin is then removed from the rack and a check is made for internal damage.
The invention aims to provide a high-low temperature pendulum test method for a front-end and rear-end protection device of an automobile, which adopts a mode of placing a test piece into a temperature box for storage to simulate various extreme environment temperatures in different regions in China and is used for improving the crashworthiness of the front-end and rear-end protection devices of the automobile when the front-end and rear-end protection devices of the automobile collide at low speed in the extreme environment, namely, the front-end and rear-end protection device parts are not damaged when the front-end and rear-end protection devices of the automobile collide at low speed with other vehicles at the extreme high temperature, the extreme low temperature and the normal environment.
Drawings
Fig. 1 shows a schematic diagram of a standard locomotive preparation process;
FIG. 2 shows a schematic view of a fabrication process of the gantry;
FIG. 3 shows a schematic diagram of a pendulum test;
FIG. 4 shows a schematic view of the installation process of the test piece;
FIG. 5 shows a schematic structural view of the cowl assembly;
FIG. 6 shows a schematic view of the installation of a temperature sensor;
fig. 7 shows a schematic representation of the test piece in a temperature box.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
According to a preferred embodiment of the invention, a high and low temperature pendulum test method for a front and rear end protection device of an automobile is provided, which comprises the following steps:
the method comprises the following steps: a stage is prepared.
The head or tail of the vehicle is cut off from the standard body-in-white assembly, then fixed on a fixed plate to form the standard head or tail of the vehicle, and the standard head or tail of the vehicle is arranged on the movable trolley to form the rack.
Specifically, as shown in a and B in fig. 1, the vehicle head parts cut out from the standard body-in-white assembly 100 include: the standard locomotive comprises a fender 1, an upper longitudinal beam 2, a lower longitudinal beam 3 and a lower longitudinal beam end plate 4, wherein after being cut off, the locomotive parts are fixed on a plane bottom plate 5 to form a standard locomotive 10. Similarly, the standard car tail is formed by the same method, and the description is omitted here.
As shown in fig. 2, the standard locomotive 10 can then be fitted to the mobile trolley 20 by means of bolts and standard fixing positions on the planar base plate 5, thus constituting a stand on which the counterweight 21 is fitted.
Step two: and a pendulum hammer head and a pendulum bob weight box are arranged for balancing weight.
The pendulum device 200 comprising the pendulum bracket, the pendulum weight box 201 and the pendulum head 202 is provided, and as shown in fig. 3, the height of the pendulum head is adjusted to ensure that the pendulum head can completely cover the whole height of the bumper during the test.
Then, the pendulum weight box is weighted according to the maximum value of the whole vehicle servicing mass. Specifically, the weight of the pendulum weight box is calculated according to a formula Mx1 ═ Max- (M + M1), wherein Max is the maximum mass of the whole vehicle, M is the effective mass of the pendulum support, and M1 is the effective mass of the pendulum head, and the required weight of the pendulum weight box Mx1 is obtained through calculation.
Step three: and (5) balancing the movable trolley.
Aiming at a front-end high-low temperature pendulum bob test, carrying out moving trolley counterweight according to a formula Mx2 ═ Max +225kg x 90% -moving trolley weight-standard locomotive weight, and calculating to obtain a required moving trolley counterweight Mx 2; aiming at a rear-end high-low temperature pendulum bob test, according to a formula Mx2 ═ Max +225kg x 95% -mobile car weight-standard car tail weight, mobile car counterweight is carried out, and the required mobile car counterweight Mx 2' is obtained through calculation.
Step four: the pendulum bob is aligned with the movable trolley.
Two plumbs are fixed on the vertical planes in front of and behind the movable trolley, so that the vertical line of the hitting head of the wooden pendulum bob is aligned with the central line of the bumper on the movable trolley.
Step five: forming a test piece.
As shown in fig. 4, the front wall assembly 30 and the front bumper skin 40 are further mounted on the standard vehicle head 10, so that the test piece 300 is formed. Similarly, for the automobile rear end protection device, the rear wall assembly and the rear bumper skin are mounted on the standard automobile tail.
As shown in fig. 5, the cowl assembly 30 includes: the water tank comprises a water tank frame 31, a main beam 32, an auxiliary beam 33, an air guide member 34 and a headlamp bracket 35.
Step six: a temperature sensor is arranged.
As shown in fig. 6, a region is selected on the inner side of the bumper skin 40, a small pit is filed in the region by a file, the depth of the pit is about half of the thickness of the skin, and then a temperature sensor strain gauge 50 is buried in the pit; covering with a heat insulating material 60, and finally, firmly adhering with a gray adhesive tape; the entire frame, particularly where the temperature sensor is located, is then covered with a heat-insulating jacket. Wherein the pendulum head impact position is shown by arrow Z in the figure.
Step seven: and (5) preserving the heat.
As shown in fig. 7, the test piece 300 is placed in a temperature chamber 400 and subjected to high-temperature heat preservation or low-temperature heat preservation.
The high temperature in the temperature box 400 is set to any temperature of 65-85 ℃ for a high-temperature pendulum test, and the low temperature in the temperature box is set to any temperature of-30-10 ℃ for a low-temperature pendulum test. Alternatively, the high temperature was set at 75 ℃ and the low temperature at-20 ℃ for 4 hours. It should be understood that other temperatures and holding times may be selected depending on the circumstances.
Step eight: and (4) pendulum testing.
Referring to FIG. 3, the incubated test piece 300 is pulled from the temperature chamber 400 and quickly aligned with the pendulum head 202 for pendulum testing. The test procedure was as follows:
1) calibrating the pendulum bob speed to be 4+0.25km/s before the test, recording the stretching inclination angle, and lifting the pendulum bob weight box 201 to the angle;
2) preparing a temperature measuring instrument and a camera;
3) placing the scale on a line corresponding to the first contact surface to be struck so as to position a striking position;
4) pulling the insulated test piece out of the temperature box 400 to quickly align with the pendulum head 202;
5) connecting a temperature sensor line to a temperature measuring instrument, and monitoring temperature change;
6) turning on the camera;
7) releasing the pendulum bob when the test temperature is reached, completing a pendulum bob striking test, and recording a test number, the test temperature and the striking speed;
8) turning off the camera and the temperature measuring instrument;
9) and (6) recording the photographed image. Five positions are photographed, at least two for each position.
Step nine: and (4) test evaluation.
After the test, first, the bumper skin 40 and the cowl assembly 30 are kept on a bench, and an engineer visually checks whether there is visible external damage, such as damage to the outer surface of the part and significant deformation (pits, convex hulls, etc.); the problems of tearing, white marks and the like exist between two molded surfaces of the part; whether the buckle between the two parts is broken or not and whether the bolt falls off or not are judged, so that whether the connection between the two parts fails or not is judged.
Next, the bumper skin 40 and the cowl assembly 30 are removed from the bed, the presence or absence of damage to the back of the bumper skin is checked, and damage to other parts covered by the bumper skin, such as plastic parts of the water tank frame, the air guide, the fixing strips, etc., is checked, all visible damage, deformation and cracks being impermissible.
The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.
Claims (10)
1. A high and low temperature pendulum test method for automobile front and rear end protection devices is characterized by comprising the following steps:
s1, cutting the head or the tail of the vehicle from the standard body-in-white assembly, fixing the head or the tail of the vehicle on a fixing plate to form the standard head or the standard tail of the vehicle, and mounting the standard head or the tail of the vehicle on a moving trolley to form a rack;
s2, providing a pendulum device comprising a pendulum bracket, a pendulum head and a pendulum weight box, and carrying out weight balancing on the pendulum weight box according to the maximum value in the vehicle service mass;
s3, balancing the movable trolley according to the maximum value in the whole trolley servicing mass;
s4, mounting parts on the standard locomotive or the standard locomotive tail to form a test piece;
s5, arranging a temperature sensor on the test piece;
s6, placing the test piece into a temperature box for high-temperature heat preservation or low-temperature heat preservation;
s7, pulling out the heat-insulated test piece from the temperature box, quickly aligning the heat-insulated test piece with a pendulum bob head, and carrying out a pendulum bob test;
and S8, after the pendulum test is finished, evaluating the test piece to obtain the low-speed collision conditions of the front and rear end protection devices of the automobile in high-temperature and low-temperature environments respectively.
2. The method for testing high and low temperature pendulum weights of front and rear end protectors of automobiles according to claim 1, wherein in step S2, the weight calculation of the pendulum weight box is performed according to the formula Mx1 ═ Max- (M + M1), where Max is the maximum mass of the entire automobile, M is the effective mass of the pendulum bracket, M1 is the effective mass of the pendulum head, and the required weight of the pendulum weight box Mx1 is calculated.
3. The high and low temperature pendulum test method for the front and rear end protection devices of the automobile according to claim 2, wherein in step S3, aiming at the front end high and low temperature pendulum test, the moving trolley counterweight is calculated according to the formula Mx2 ═ Max +225kg x 90% -moving trolley weight-standard head weight to obtain the required moving trolley counterweight Mx 2; aiming at a rear-end high-low temperature pendulum bob test, according to a formula Mx2 ═ Max +225kg x 95% -mobile car weight-standard car tail weight, mobile car counterweight is carried out, and the required mobile car counterweight Mx 2' is obtained through calculation.
4. The high and low temperature pendulum test method for an automobile front and rear end protector according to claim 1, wherein step S4 comprises: and a front wall assembly and a front bumper skin are installed on the standard locomotive, or a rear wall assembly and a rear bumper skin are installed on the standard locomotive.
5. The high and low temperature pendulum test method of an automotive front and rear end protector, according to claim 4, wherein the cowl assembly comprises: the device comprises a water tank frame, a main cross beam, an auxiliary cross beam, an air guide piece and a headlamp bracket.
6. The high and low temperature pendulum test method for an automobile front and rear end protector, according to claim 4, wherein step S5 comprises: a recessed area is formed inside the bumper skin, and the temperature sensor is disposed in the recessed area.
7. The high and low temperature pendulum test method for an automobile front and rear end protector according to claim 1, wherein step S6 comprises: and putting the test piece or the test piece and the moving trolley into a temperature box for heat preservation for more than 4 hours.
8. The high-low temperature pendulum test method for the front-rear end protector of the automobile according to claim 1, wherein in step S6, the high temperature in the temperature box is set to 65-85 ℃ for the high temperature pendulum test, and the low temperature in the temperature box is set to-30 ℃ to-10 ℃ for the low temperature pendulum test.
9. The high and low temperature pendulum test method for an automobile front and rear end protector according to claim 1, wherein step S7 comprises: 1) calibrating the speed of the pendulum bob before testing, recording the stretching inclination angle, and lifting the weight box of the pendulum bob to the angle; 2) preparing a temperature measuring instrument and a camera; 3) placing the scale on a line corresponding to the first contact surface to be struck so as to position a striking position; 4) pulling out the heat-insulated test piece from the temperature box, and quickly aligning the test piece with a pendulum bob striking head; 5) connecting a temperature sensor line to a temperature measuring instrument, and monitoring temperature change; 6) turning on the camera; 7) releasing the pendulum bob when the test temperature is reached, completing a pendulum bob striking test, and recording a test number, the test temperature and the striking speed; 8) turning off the camera and the temperature measuring instrument; 9) and (6) recording the photographed image.
10. The high and low temperature pendulum test method for an automobile front and rear end protector according to claim 1, wherein step S8 comprises: firstly, maintaining a bumper skin on a rack, and observing whether visible external damage exists or not by naked eyes; the bumper skin is then removed from the rack and a check is made for internal damage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306780.9A CN114235430A (en) | 2021-11-05 | 2021-11-05 | High-low temperature pendulum bob test method for automobile front-rear end protection device |
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| CN202111306780.9A CN114235430A (en) | 2021-11-05 | 2021-11-05 | High-low temperature pendulum bob test method for automobile front-rear end protection device |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980018761U (en) * | 1996-09-30 | 1998-07-06 | 양재신 | Bumper impact tester that can change the weight of the weight |
| KR20090008051A (en) * | 2007-07-16 | 2009-01-21 | 주식회사 성우하이텍 | Pendulum type impact test apparatus |
| CN102818708A (en) * | 2011-06-08 | 2012-12-12 | 重庆车辆检测研究院有限公司 | Device for detecting automobile cab and front and rear end protecting device |
| CN204903124U (en) * | 2015-08-20 | 2015-12-23 | 延锋彼欧汽车外饰***有限公司 | A platform truck for colliding in test |
| CN105547714A (en) * | 2016-02-01 | 2016-05-04 | 湖北文理学院 | Side brake mechanism of vehicle bumper simulation impact test device |
| CN105738066A (en) * | 2016-02-01 | 2016-07-06 | 湖北文理学院 | Bumper simulated collision test device |
| CN105841912A (en) * | 2016-06-02 | 2016-08-10 | 深圳朝伟达科技有限公司 | Test bench |
| CN106501007A (en) * | 2016-10-28 | 2017-03-15 | 广州汽车集团股份有限公司 | Automobile RCAR and front and back end low speed collision assay device and the test method based on the device |
| CN207019863U (en) * | 2017-06-05 | 2018-02-16 | 岳西县同兴尼龙橡胶制品有限公司 | Bumper high temperature resistant test device |
| CN208443552U (en) * | 2018-06-04 | 2019-01-29 | 江苏瑞延理化汽车饰件有限公司 | Mold is used in a kind of test of bumper |
| CN213336705U (en) * | 2020-11-24 | 2021-06-01 | 常州市鼎豪车辆配件有限公司 | Car bumper processing is with striking testing arrangement |
-
2021
- 2021-11-05 CN CN202111306780.9A patent/CN114235430A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980018761U (en) * | 1996-09-30 | 1998-07-06 | 양재신 | Bumper impact tester that can change the weight of the weight |
| KR20090008051A (en) * | 2007-07-16 | 2009-01-21 | 주식회사 성우하이텍 | Pendulum type impact test apparatus |
| CN102818708A (en) * | 2011-06-08 | 2012-12-12 | 重庆车辆检测研究院有限公司 | Device for detecting automobile cab and front and rear end protecting device |
| CN204903124U (en) * | 2015-08-20 | 2015-12-23 | 延锋彼欧汽车外饰***有限公司 | A platform truck for colliding in test |
| CN105547714A (en) * | 2016-02-01 | 2016-05-04 | 湖北文理学院 | Side brake mechanism of vehicle bumper simulation impact test device |
| CN105738066A (en) * | 2016-02-01 | 2016-07-06 | 湖北文理学院 | Bumper simulated collision test device |
| CN105841912A (en) * | 2016-06-02 | 2016-08-10 | 深圳朝伟达科技有限公司 | Test bench |
| CN106501007A (en) * | 2016-10-28 | 2017-03-15 | 广州汽车集团股份有限公司 | Automobile RCAR and front and back end low speed collision assay device and the test method based on the device |
| CN207019863U (en) * | 2017-06-05 | 2018-02-16 | 岳西县同兴尼龙橡胶制品有限公司 | Bumper high temperature resistant test device |
| CN208443552U (en) * | 2018-06-04 | 2019-01-29 | 江苏瑞延理化汽车饰件有限公司 | Mold is used in a kind of test of bumper |
| CN213336705U (en) * | 2020-11-24 | 2021-06-01 | 常州市鼎豪车辆配件有限公司 | Car bumper processing is with striking testing arrangement |
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