CN210981742U - Dynamic load testing device for vehicle door lock - Google Patents
Dynamic load testing device for vehicle door lock Download PDFInfo
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- CN210981742U CN210981742U CN201921691744.7U CN201921691744U CN210981742U CN 210981742 U CN210981742 U CN 210981742U CN 201921691744 U CN201921691744 U CN 201921691744U CN 210981742 U CN210981742 U CN 210981742U
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- door lock
- dynamic load
- force sensor
- testing device
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Abstract
The utility model relates to an automobile product testing technical field discloses a door lock dynamic load testing arrangement, include: the automobile door lock comprises a mounting plate, a force sensor and a lock catch assembly, wherein the mounting plate comprises a bottom plate and a side plate fixed at one end of the bottom plate, the force sensor and the lock catch assembly are both positioned on the bottom plate, the lock catch assembly comprises a connecting part, a lock catch matched with an automobile door lock body and a supporting part for connecting the lock catch and the connecting part, one end of the force sensor is connected with the side plate, and the other end of the force sensor is connected with the connecting part; the testing device is compact in structure and reasonable in design, the original vehicle door lock catch can be replaced by the testing device to be mounted on a vehicle body through the mounting plate, a testing scene is consistent with the actual vehicle door closing state, the testing result is high in accuracy and good in reliability, and accurate load input can be provided for finite element models such as vehicle door design, vehicle door opening and closing endurance simulation calculation, vehicle door fatigue reliability tests and the like.
Description
Technical Field
The utility model relates to an automobile product testing technical field especially relates to a door lock dynamic load testing arrangement.
Background
The door is an important component of the body system, and the performance of the door directly affects the safety, comfort and durability of the whole automobile. The dynamic load of the door lock is tested in the closing process of the vehicle door, and the test result can provide accurate load input for finite element models such as vehicle door design, vehicle door opening and closing endurance simulation calculation, vehicle door fatigue reliability test and the like, so that reference and basis are provided for subsequent optimization design.
At present, a simulation test method is mostly adopted in a method for testing dynamic load of a door lock in a door closing process, as shown in fig. 1, an existing simulation test device is provided, one end of a sliding table 1 'is fixed with a latch mounting bracket 5', the other end of the sliding table 1 'is slidably provided with a lock mounting upright post 2', the lock mounting upright post 2 'can slide to move towards the latch mounting bracket 5', a cylinder 8 'is connected between the latch mounting bracket 5' and the lock mounting upright post 2 ', one end of a force sensor fixing frame 7' is fixedly connected with a side wall of the latch mounting bracket 5 ', the other end of the force sensor fixing frame 7' is fixed with a force sensor 6 ', a latch 4' is fixed at the front end of the force sensor 6 ', a door lock body 3' is fixed on the side wall of the lock mounting upright post 2 ', the latch 4' is arranged opposite to the door: the cylinder 8 ' drives the lock body mounting upright post 2 ' to slide on the sliding table, and rushes to the lock catch mounting bracket 5 ' at a certain speed, the car door lock body 3 ' is meshed with the lock catch 4 ', the force sensor 6 ' collects the dynamic load borne by the lock catch 4 ' in real time, and the dynamic load borne by the lock body 3 ' is indirectly obtained according to the Newton's third law.
The existing simulation test device has the following defects: the simulation test device can only simulate and test the dynamic load in the process of meshing the car door lock body 3 'with the lock catch 4', and in the actual car door closing process, the dynamic load in the process of meshing the car door lock body 3 'with the lock catch 4' is also related to other influence factors, such as car door dead weight, movement track, structural shape, sealing strips, buffer blocks, air flow in a car and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can test on the real car, test scene and actual door closed state unanimous and the door lock dynamic load testing arrangement of the door closure in-process that test result good reliability, accuracy are high.
In order to achieve the above object, the utility model provides a door lock dynamic load testing arrangement, include: mounting panel, force transducer and hasp subassembly, the mounting panel includes the bottom plate and is fixed in the curb plate of bottom plate one end, force transducer reaches the hasp subassembly all is located on the bottom plate, the hasp subassembly include connecting portion, be used for with door lock body matched with hasp and be connected the hasp with the supporting part of connecting portion, force transducer's one end with the curb plate is connected, force transducer's the other end with connecting portion connect.
Preferably, the testing device further comprises a data acquisition and processing system, and the force sensor is electrically connected with the data acquisition and processing system.
Preferably, the lock catch is L-shaped, and an open end of the lock catch is fixed at the front end of the support part.
Preferably, the force sensor comprises a body, two ends of the body are respectively connected with a stud, a through hole is formed in the side plate, a threaded hole is formed in the connecting part, one stud of the force sensor penetrates through the through hole and is matched and locked with a locking nut, and the other stud of the force sensor is screwed into the threaded hole.
Preferably, the length of each stud is 10-20 mm, the diameter of the body is 20-40mm, and the total length of the force sensor is 30-50 mm.
Preferably, the bottom plate is provided with a mounting hole.
Preferably, the bottom plate is fan-shaped.
Preferably, the mounting plate is L type, the bottom plate and the side plate are integrally formed, and a reinforcing rib is arranged between the bottom plate and the side plate.
Preferably, the connecting portion and the supporting portion are integrally formed.
Preferably, the upper surface of the bottom plate is provided with a groove for preventing the force sensor and the locking assembly from contacting the bottom plate.
The embodiment of the utility model provides a door lock dynamic load testing arrangement compares with prior art, and its beneficial effect lies in: the testing device is compact in structure and reasonable in design, can be directly used for testing by being installed on a vehicle body instead of an original vehicle door lock catch, the vehicle door lock body is locked with the lock catch of the testing device in the vehicle door closing process, the force sensor connected with the lock catch assembly collects signals of loads borne by the door lock in the vehicle door closing process in real time, a testing scene is consistent with the actual vehicle door closing state, the testing result is high in accuracy and good in reliability, factors influencing the dynamic load size of the door lock in the vehicle door opening or closing process can be researched, accurate load input can be provided for finite element models such as vehicle door design, vehicle door opening and closing durability simulation calculation, vehicle door fatigue reliability test and the like, the manufacturing cost of the testing device is low, and.
And the data acquisition and processing system generates a dynamic load force-time relation curve according to the load signal.
Drawings
FIG. 1 is a schematic diagram of a prior art analog testing device in the background art;
fig. 2 is a schematic structural diagram of a dynamic load testing device for a vehicle door lock according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a latch assembly of a dynamic load testing device for a vehicle door lock according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a force sensor of a dynamic load testing device for a vehicle door lock in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a mounting plate of a dynamic load testing device for a vehicle door lock in an embodiment of the present invention;
fig. 6 is a graph of a relationship between a dynamic load force and time of a door lock during a closing process of a vehicle door, which is obtained by applying the device for testing the dynamic load of the door lock of the embodiment of the present invention.
In the figure, 1', a sliding table; 2', mounting a stand column on the lock body; 3', a vehicle door lock body; 4', locking; 5', a lock catch mounting bracket; 6', a force sensor; 7', a force sensor fixing frame; 8', a cylinder; 9', a speed measuring instrument;
1. mounting a plate; 11. a base plate; 111. mounting holes; 112. a groove; 12. a side plate; 121. a through hole; 13. reinforcing ribs; 2. a force sensor; 21. a body; 22. a stud; 23. locking the nut; 3. a latch assembly; 31. a connecting portion; 311. a threaded hole; 32. a support portion; 33. and (5) locking.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the term load is used herein, the load refers to an external force and other factors that cause a structure or a member to generate an internal force and deform, the term dynamic load refers to an external load whose speed changes rapidly in a very short time, and the terms "upper", "lower", "left", "right", "top", "bottom", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 2, the present invention provides a dynamic load testing device for a vehicle door lock, including: mounting panel 1, force sensor 2 and hasp subassembly 3, mounting panel 1 includes bottom plate 11 and is fixed in the curb plate 12 of bottom plate 11 one end, and force sensor 2 and hasp subassembly 3 all are located bottom plate 11, and hasp subassembly 3 includes connecting portion 31, is used for with door lock body matched with hasp 33 and the supporting part 32 of connecting hasp 33 and connecting portion 31, and force sensor 2's one end is connected with curb plate 12, and force sensor 2's the other end is connected with connecting portion 31.
The testing device also comprises a data acquisition and processing system, and the force sensor 2 is electrically connected with the data acquisition and processing system. The data acquisition and processing system belongs to the existing equipment and can be a single chip microcomputer.
Based on the above technical scheme, the embodiment provides a vehicle door lock dynamic load testing device, the testing device is compact in structure and reasonable in design, the testing device can be installed on a vehicle body through an installation plate 1 instead of an original vehicle door lock catch, when a vehicle door is closed, a vehicle door lock body is locked with a lock catch 33 of the testing device, a force sensor 2 connected with a lock catch assembly 3 collects the load borne by the vehicle door lock in the locking process of the vehicle door in real time and transmits the load to a data acquisition and processing system, the data acquisition and processing system generates a dynamic load force-time relation curve shown in fig. 6 according to a load signal, a test scene is consistent with the actual vehicle door closing state, the accuracy of the test result is high, and the reliability is good.
As shown in fig. 2 and 3, the latch 33 is preferably L-shaped, and the open end of the latch 33 is fixed to the front end of the support portion 32, so that the dimensional shape and surface treatment process of the latch 33 of the testing device are consistent with those of an actual vehicle door latch in order to ensure the reliability of the test result.
Referring to fig. 2 and 4, preferably, the force sensor 2 includes a body 21, in order to ensure stable and reliable connection between the force sensor 2 and the connecting portion 31 of the locking assembly 3 and the side plate 12, two ends of the body 21 are respectively connected with a stud 22, the side plate 12 is provided with a through hole 121, the connecting portion 31 is provided with a threaded hole 311, one stud 22 of the force sensor 2 passes through the through hole 121 and is matched and locked with the locking nut 23, and the other stud 22 of the force sensor 2 is screwed into the threaded hole 311.
The length of each stud 22 is 10-20 mm, the diameter of the body 21 is 20-40mm, and the total length of the force sensor 2 is 30-50 mm. Illustratively, to ensure the connection strength and compact testing device, the length of each stud 22 is 15mm, the diameter of the body 21 is 32mm, and the total length of the force sensor 2 is 45 mm.
As shown in fig. 5, in order to meet the installation requirement, the bottom plate 11 is provided with an installation hole 111, and the size of the installation hole 111 is consistent with the size of the installation hole 111 of the original door lock catch 33.
Further, in order to save material and reduce cost, the bottom plate 11 is fan-shaped, the side plate 12 is disposed at the end with the smaller width, and the mounting hole 111 is disposed at the end with the larger width.
Preferably, the mounting plate 1 is shaped L for the convenience of molding and the stability of installation, the bottom plate 11 and the side plate 12 are integrally molded, and the reinforcing ribs 13 are disposed between the bottom plate 11 and the side plate 12 to increase the rigidity of the mounting plate 1.
To facilitate the spatial arrangement, reduce the overall occupied space of the latch assembly 3 and ensure the stability, the connecting portion 31 and the supporting portion 32 are integrally formed.
Preferably, in order to ensure the compact structure of the testing device and the accuracy and reliability of the testing result, the upper surface of the bottom plate 11 is provided with a groove 112 for preventing the force sensor 2 and the locking assembly 3 from contacting the bottom plate 11.
Use the utility model discloses when carrying out the door and closing process lock dynamic load test, including following step:
the first step is as follows: the original door lock catch on the car to be tested is detached, and the testing device of the utility model is fixedly arranged at the position of the original door lock catch by screws through the mounting hole 111 on the bottom plate 11 of the mounting plate 1;
the second step is that: setting various use parameters and acquisition frequency of the force sensor 2 through a data acquisition processing system;
the third step: manually closing the vehicle door, and locking a vehicle door lock body with a lock catch 33 of the testing device in a matched manner;
the fourth step: the force sensor 2 connected with the locking assembly 3 transmits the load signal acquired in the closing process of the vehicle door to the data acquisition and processing system, so that a relation curve of dynamic load force-time of the door lock in the closing process of the vehicle door can be directly obtained, as shown in fig. 6.
In summary, the embodiment of the utility model provides a dynamic load testing device for a car door lock, which has compact structure and reasonable design, it can be installed on the car body instead of the original car door lock catch, when the car door is closed, the car door lock body is locked with the lock catch 33 of the testing device, the force sensor 2 connected with the locking assembly 3 collects the load of the door lock in real time during the locking process of the vehicle door, and transmits the load signal to a data acquisition and processing system which generates a dynamic load force-time relation curve according to the load signal, the test result has high accuracy, has good reliability, solves the problem of poor accuracy of the test result caused by the fact that the actual state of the vehicle door can not be simulated in the test process in the prior art, the method can be used for researching the factors influencing the dynamic load of the door lock in the process of opening or closing the door, and can also be used for providing accurate load input for finite element models such as door design, door opening and closing endurance simulation calculation, door fatigue reliability test and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a door lock dynamic load testing arrangement which characterized in that includes: mounting panel, force transducer and hasp subassembly, the mounting panel includes the bottom plate and is fixed in the curb plate of bottom plate one end, force transducer reaches the hasp subassembly all is located on the bottom plate, the hasp subassembly include connecting portion, be used for with door lock body matched with hasp and be connected the hasp with the supporting part of connecting portion, force transducer's one end with the curb plate is connected, force transducer's the other end with connecting portion connect.
2. The vehicle door lock dynamic load testing device of claim 1, wherein the testing device further comprises a data acquisition and processing system, and the force sensor is electrically connected to the data acquisition and processing system.
3. The door lock dynamic load testing device of claim 1, wherein the latch is shaped L, and an open end of the latch is fixed to a front end of the support portion.
4. The dynamic load testing device for the car door lock as claimed in claim 1, wherein the force sensor comprises a body, two ends of the body are respectively connected with a stud, a through hole is formed in the side plate, a threaded hole is formed in the connecting part, one stud of the force sensor passes through the through hole and is matched and locked with a locking nut, and the other stud of the force sensor is screwed into the threaded hole.
5. The dynamic load testing device for the door lock of the vehicle door as claimed in claim 4, wherein the length of each stud is 10-20 mm, the diameter of the body is 20-40mm, and the total length of the force sensor is 30-50 mm.
6. The dynamic load testing device for the door lock of the vehicle door as claimed in claim 1, wherein the bottom plate is provided with a mounting hole.
7. The door lock dynamic load testing device of claim 6, wherein the base plate has a fan shape.
8. The apparatus for testing dynamic load of door lock according to claim 1, wherein said mounting plate is shaped like L, said bottom plate and said side plate are integrally formed, and a reinforcing rib is provided between said bottom plate and said side plate.
9. The door lock dynamic load testing device of claim 1, wherein the connecting portion and the supporting portion are integrally formed.
10. The apparatus for testing the dynamic load of the door lock of the vehicle door as claimed in any one of claims 1 to 9, wherein a groove for preventing the force sensor and the latch assembly from contacting the bottom plate is formed on the upper surface of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921691744.7U CN210981742U (en) | 2019-10-10 | 2019-10-10 | Dynamic load testing device for vehicle door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921691744.7U CN210981742U (en) | 2019-10-10 | 2019-10-10 | Dynamic load testing device for vehicle door lock |
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| Publication Number | Publication Date |
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| CN210981742U true CN210981742U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921691744.7U Active CN210981742U (en) | 2019-10-10 | 2019-10-10 | Dynamic load testing device for vehicle door lock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113591213A (en) * | 2021-07-15 | 2021-11-02 | 武汉理工大学 | Durability analysis method for novel door lock body of light commercial vehicle |
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2019
- 2019-10-10 CN CN201921691744.7U patent/CN210981742U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113591213A (en) * | 2021-07-15 | 2021-11-02 | 武汉理工大学 | Durability analysis method for novel door lock body of light commercial vehicle |
| CN113591213B (en) * | 2021-07-15 | 2023-11-03 | 武汉理工大学 | Durability analysis method for novel door lock body of light commercial vehicle |
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