CN113758733A - System and method for testing connection reliability of steering wheel and clock spring - Google Patents
System and method for testing connection reliability of steering wheel and clock spring Download PDFInfo
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- CN113758733A CN113758733A CN202110968063.6A CN202110968063A CN113758733A CN 113758733 A CN113758733 A CN 113758733A CN 202110968063 A CN202110968063 A CN 202110968063A CN 113758733 A CN113758733 A CN 113758733A
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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
- G01M17/06—Steering behaviour; Rolling behaviour
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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
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Abstract
The invention relates to a system and a method for testing the connection reliability of a steering wheel and a clock spring, wherein the steering wheel and the clock spring are connected through a plug connector according to a preset assembly tolerance, and the steering wheel and the clock spring are both arranged on a steering column; the test system comprises a test box, a vibration table, a driving device, a detection device and a control device, wherein the vibration table is arranged in the test box and used for fixing a steering column; the driving device is used for being connected with the steering wheel; the detection device is connected with the plug connector and is used for acquiring a conducting signal of the plug connector; the control device is connected with the vibration table, the driving device and the detection device and is used for controlling the vibration table to vibrate, controlling the driving device to drive the steering wheel and the steering column to rotate and driving the clock spring to rotate; and the circuit is also used for judging whether the plug connector is disconnected or not according to the conducting signal and verifying whether the preset assembly tolerance is qualified or not.
Description
Technical Field
The application relates to the technical field of automobile testing, in particular to a system and a method for testing connection reliability of a steering wheel and a clock spring.
Background
The steering wheel is fixed on the steering column by a bolt, and the steering column transmits the torque on the steering wheel to the steering gear to drive the steering gear to work so as to achieve the effect of controlling the driving direction of the automobile. The clock spring is a key electrical rotary connector used in an automobile steering wheel, mainly comprises a flexible flat cable, a rotor and a shell which rotate relatively, a wiring harness (conductive outgoing line) and a connector, is generally arranged below the automobile steering wheel, can ensure reliable electrical connection of electrical components such as a front safety airbag, a horn switch and the like between two relatively rotating components in the left and right rotating actions of the steering wheel, and can influence the normal functions of the safety airbag, a power-assisted steering angle sensor and a horn on the steering wheel if the clock spring fails.
In the related technology, an automobile clock spring durability test device is disclosed, which comprises a rack, an industrial personal computer with a display, a servo motor arranged on the rack, a motor driver connected with the servo motor, and a test fixture used for fixing a clock spring to be tested, wherein a motion control card is arranged in the industrial personal computer, the industrial personal computer is connected with the motor driver through the motion control card, and the test fixture is rotatably arranged on a test support.
However, the durability of the clock spring in the scheme simply refers to the quality of the clock spring, and the assembly tolerance between the clock spring and the steering wheel cannot be determined under the condition that the connection between the clock spring and the steering wheel is reliable, so that the method has no guiding significance for actual production and assembly.
Disclosure of Invention
The embodiment of the application provides a system and a method for testing the connection reliability of a steering wheel and a clock spring, and aims to solve the problem that the assembly tolerance between the clock spring and the steering wheel does not have guiding significance to actual production and assembly under the condition that the connection between the clock spring and the steering wheel is reliable in the related technology.
In a first aspect, a system for testing the connection reliability of a steering wheel and a clock spring is provided, wherein the steering wheel and the clock spring are connected through a plug connector according to a preset assembly tolerance, and the steering wheel and the clock spring are both mounted on a steering column; the test system includes:
a test chamber;
the vibration table is arranged in the test box and used for fixing the steering column;
a drive device for connecting with a steering wheel;
the detection device is connected with the plug connector and is used for acquiring a conducting signal of the plug connector;
the control device is connected with the vibration table, the driving device and the detection device and is used for controlling the vibration table to vibrate and controlling the driving device to drive the steering wheel and the steering column to rotate and drive the clock spring to rotate; and the connector is also used for judging whether the connector is disconnected or not according to the conducting signal and verifying whether the preset assembly tolerance is qualified or not.
In some embodiments, when the mounting frame of the steering wheel is located at a first position and a second position, the vertical distances between the plug connector and the mounting frame are a first distance and a second distance, respectively;
the assembly tolerance is defined as: a difference between the second distance and the first distance;
the plug connector has a normal assembly state and a limit assembly state;
when the assembly tolerance is in a normal assembly state, the preset assembly tolerance is a normal assembly tolerance, and when the assembly tolerance is in a limit assembly state, the preset assembly tolerance is a limit assembly tolerance, and the normal assembly tolerance is smaller than the limit assembly tolerance.
In some embodiments, the normal assembly tolerance is less than 1mm and the extreme assembly tolerance is greater than 3 mm.
In some embodiments, when the mounting frame is rotated to the first position, the mounting frame is in the direction of the 12 o' clock of the steering wheel; when the mounting frame is rotated to the second position, the mounting frame is in a direction of the steering wheel at 6 o' clock.
In some embodiments, the vibration table comprises:
a horizontally arranged vibration table;
and the mounting table is arranged on the vibration table frame, the upper surface of the mounting table is obliquely arranged and is matched with the actual mounting angle of the steering wheel.
In some embodiments, the driving device comprises:
a clamping jaw for clamping the steering wheel;
and the motor is connected with the test box, and the driving shaft of the motor is connected with the clamping jaw and is used for driving the steering wheel to rotate through the clamping jaw.
In some embodiments, the jaw comprises:
a connecting plate connected with the driving shaft;
the two clamping plates are respectively arranged on two sides of the connecting plate, and a clamping space for clamping spokes of the steering wheel is formed between the two clamping plates; and the inner side of the clamping plate is concavely provided with an arc groove, and the arc groove is matched with the outer surface of the spoke.
In a second aspect, a method for testing the connection reliability of a steering wheel and a clock spring is provided, and the method comprises the following steps:
providing the test system;
fixing the steering column on the vibration table;
controlling the vibration table to vibrate, driving the steering wheel and the steering column to rotate at the same time, and driving the clock spring to rotate;
collecting a conducting signal of the plug connector;
judging whether the plug connector is disconnected or not according to the conducting signal, and verifying whether the preset assembly tolerance is qualified or not;
if the conducting signal does not meet the conducting condition, the plug connector is judged to be disconnected, and the preset assembly tolerance is determined to be unqualified;
and if the conducting signal meets the conducting condition, judging that the plug connector is not disconnected, and determining that the preset assembly tolerance is qualified.
In some embodiments:
when the mounting frame of the steering wheel is located at a first position and a second position, the vertical distances between the plug connector and the mounting frame are respectively a first distance and a second distance;
the tolerance is defined as: a difference between the second distance and the first distance;
the plug connector has a normal assembly state and a limit assembly state;
when the assembly tolerance is in a normal assembly state, the preset assembly tolerance is a normal assembly tolerance, and when the assembly tolerance is in a limit assembly state, the preset assembly tolerance is a limit assembly tolerance, and the normal assembly tolerance is smaller than the limit assembly tolerance;
judging whether the plug connector is disconnected or not, and verifying whether the preset assembly tolerance is qualified or not, wherein the method specifically comprises the following steps:
when the normal assembly tolerance is qualified and the limit assembly tolerance is qualified, taking the normal assembly tolerance and the limit assembly tolerance as a target normal assembly tolerance and a target limit assembly tolerance of the steering wheel and the clock spring;
when the normal assembly tolerance is qualified and the limit assembly tolerance is unqualified, reducing the limit assembly tolerance and re-verifying whether the limit assembly tolerance is qualified or not;
and when the normal assembly tolerance is unqualified and the limit assembly tolerance is unqualified, reducing the normal assembly tolerance and the limit assembly tolerance, and re-verifying whether the normal assembly tolerance and the limit assembly are qualified or not.
In some embodiments, the conduction condition is that the resistance of the connection line of the plug connector is greater than 7 Ω, and the duration is greater than 200 ns.
The embodiment of the application provides a system and a method for testing the connection reliability of a steering wheel and a clock spring, because the steering wheel, the clock spring and a steering column are installed in a test box, and the steering wheel and the clock spring are connected through a plug connector according to a preset assembly tolerance, the actual installation state of the steering wheel in a vehicle is simulated, the steering wheel is driven to vibrate through a vibration table, a bumpy road surface is simulated, the steering wheel is driven to rotate around the steering column through a driving device, the steering durability of the steering wheel is realized, and the real use environment of a real vehicle is simulated through setting the temperature and humidity in the test box, so that the connection reliability of the steering wheel and the clock spring is verified on the bumpy road surface and after the steering wheel is subjected to a steering durability test. In the process, the plug connector can move in the mounting frame, the detection device is used for collecting a conducting signal of a wire harness on the plug connector to judge whether the wire harness on the plug connector is disconnected or not, so that whether preset assembly tolerance is qualified or not is verified, and an instructive effect is achieved for actual assembly of a steering wheel and a clock spring.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a system for testing connection reliability of a steering wheel and a clock spring according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a usage status of a system for testing connection reliability of a steering wheel and a clock spring according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a mounting frame of a steering wheel in a first position according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a mounting frame of a steering wheel in a second position according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a driving device according to an embodiment of the present application.
In the figure: 1. a steering wheel; 10. a first position; 11. a second position; 12. installing a frame; 2. a clock spring; 3. a steering column; 4. a test chamber; 5. a vibration table; 50. a vibration table frame; 51. an installation table; 6. a plug-in unit; 7. a drive device; 70. a clamping jaw; 700. a connecting plate; 701. a splint; 71. a motor; 8. a detection device; 9. and a control device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1:
after repeated experiments and verification, the applicant finds that: the general connection mode between the steering wheel 1 and the clock spring 2 is as follows: the steering wheel 1 is provided with a mounting frame 12, the steering wheel 1 is connected with a male end of a plug connector 6, the clock spring 2 is connected with a female end of the plug connector 6, the connection between the clock spring 2 and the steering wheel 1 is realized through the butt joint of the male end and the female end of the plug connector 6, and the butt joint plug connector 6 is positioned in the mounting frame 12; in the rotating process of the steering wheel 1, the plug connector 6 is driven to move in the mounting frame 12, the plug connector 6 is expected to be always in the center of the mounting frame 12 in an ideal state, but because the clock spring 2 is mounted on the steering column 3 in an actual assembly state, and the steering wheel 1 is also mounted on the steering column 3, the three cannot be absolutely coaxial, and assembly tolerance exists between the steering wheel 1 and the clock spring 2, the plug connector 6 cannot be always in the center of the mounting frame 12 in the rotating process of the steering wheel 1, but can move in the mounting frame 12, so that a wire harness connected on the plug connector 6 is continuously pulled back and forth, the clock spring 2 fails, and therefore, a design experiment is needed to verify that whether the wire harness connected on the plug connector 6 is disconnected or not in the life cycle of a vehicle when the steering wheel 1 is connected with the clock spring 2 according to a preset assembly tolerance, failure of the clock spring 2 will not result and the target assembly tolerance is found so that the clock spring 2 will not fail throughout the life cycle of the vehicle.
In order to solve the above problems, referring to fig. 1 and 2, embodiment 1 of the present application provides a system for testing the connection reliability of a steering wheel and a clock spring, wherein the steering wheel 1 and the clock spring 2 are connected by a plug 6 according to a preset assembly tolerance, and both the steering wheel 1 and the clock spring 2 are mounted on a steering column 3; the test system comprises a test box 4, a vibration table 5, a driving device 7, a detection device 8 and a control device 9, wherein the test box 4 is a temperature and humidity control box, and the temperature and the humidity in the test box 4 can be adjusted by setting the temperature and the humidity; the vibration table 5 is arranged in the test box 4 and used for fixing the steering column 3; the driving device 7 is also arranged in the test box 4 and is used for being connected with the steering wheel 1; the detection device 8 is connected with the plug-in unit 6 and is used for collecting a conducting signal of the plug-in unit 6; the control device 9 is connected with the vibration table 5, the driving device 7 and the detection device 8 and is used for controlling the vibration table 5 to vibrate, controlling the driving device 7 to drive the steering wheel 1 and the steering column 3 to rotate and driving the clock spring 2 to rotate; and the device is also used for judging whether the plug connector 6 is disconnected or not according to the conducting signal and verifying whether the preset assembly tolerance is qualified or not.
The working principle of the test system in embodiment 1 of the present application is as follows:
through installing steering wheel 1 in proof box 4, clock spring 2 and steering column 3, and connect according to predetermined assembly tolerance through plug connector 6 between steering wheel 1 and the clock spring 2, come the actual mounted state of simulation steering wheel 1 in the vehicle, rethread shaking table 5 drive steering wheel 1 vibration, the road surface of simulation jolting, and drive steering wheel 1 through drive arrangement 7 and rotate around steering column 3, realize steering wheel 1's steering is durable, and still through the humiture that sets up in proof box 4, come the true real vehicle service environment of simulation, thereby verify jolting on the road surface, and steering wheel 1 turns to the endurance test back, the reliability of the connection of steering wheel 1 and clock spring 2. In the process, the plug connector 6 can move in the mounting frame 12, the detection device 8 is used for collecting a conducting signal of a wire harness on the plug connector 6 to judge whether the wire harness on the plug connector 6 is disconnected or not, so that whether preset assembly tolerance is qualified or not is verified, and an instructive effect is achieved for actual assembly of the steering wheel 1 and the clock spring 2.
Referring to fig. 3 and 4, when the mounting frame 12 of the steering wheel 1 is located at the first position 10 and the second position 11, the vertical distances between the plug 6 and the mounting frame 12 are respectively a first distance L1 and a second distance L2, specifically, the distance from the top end or the center of the plug 6 to the top end of the mounting frame 12, where the top ends refer to the top end when the steering wheel 1 is in the return state; wherein the assembly tolerance is defined as: the difference between the second distance and the first distance, i.e., L2-L1; the plug-in unit 6 has a normal assembly state and a limit assembly state; when the assembly tolerance is in the limit assembly state, the preset assembly tolerance is the limit assembly tolerance, and the normal assembly tolerance is smaller than the limit assembly tolerance.
The steering wheel 1 rotates, so that the mounting frame 12 rotates from the first position 10 to the second position 11, and in the rotating process of the steering wheel 1, the plug connector 6 is driven to move in the mounting frame 12, so that assembly tolerance is generated; when the plug-in unit 6 is in a normal assembly state, the range of movement of the plug-in unit 6 in the mounting frame 12 is small, and the pulling degree of the wire harness is small; when the plug-in unit 6 is in the limit assembly state, the range of movement of the plug-in unit 6 in the mounting frame 12 is large, and the pulling degree of the wire harness is also large; therefore, in the embodiment 1 of the present application, whether the normal assembly tolerance and the limit assembly tolerance are qualified or not is verified to determine the qualified normal assembly tolerance and the qualified limit assembly tolerance so as to guide the actual assembly of the steering wheel 1 and the clock spring 2, and ensure that the clock spring 2 does not fail in the steering process of the steering wheel 1.
Preferably, the normal assembly tolerance is less than 1mm and the limit assembly tolerance is greater than 3 mm.
When the plug-in unit 6 is in the normal assembly state:
1) fixing the steering column 3 on the vibration table 5 according to the actual vehicle angle of 25 degrees, wherein the tightening torque is 20 NM;
2) after centering adjustment, the clock spring 2 is fixed on the steering column 3, and the tightening torque is 4 NM;
3) according to the actual vehicle angle, the steering wheel 1 is assembled by adopting an M16 bolt, and the torque is 35 NM;
4) normal assembly tolerances are less than 1 mm;
5) the airbag of the steering wheel 1 is assembled and the whole system is placed in a test chamber 4.
When the plug-in unit 6 is in the limit assembly state:
1) fixing the steering column 3 on a vibration table according to the actual vehicle angle of 25 degrees, wherein the tightening torque is 20 NM;
2) fixing a clock spring 2 on a steering column 3, wherein the tightening torque is 4 NM;
3) according to the actual vehicle angle, the steering wheel 1 is assembled by adopting an M16 bolt, and the torque is 35 NM;
4) the limit assembly tolerance is more than 3 mm;
5) the airbag of the steering wheel 1 is assembled and the whole system is placed in a test chamber 4.
Preferably, as shown in fig. 3 and 4, when the mounting frame 12 is rotated to the first position 10, the mounting frame 12 is in the direction of 12 o' clock of the steering wheel 1; when the mounting frame 12 is rotated to the second position 11, the mounting frame 12 is in the direction of 6 o' clock of the steering wheel 1.
Optionally, the vibration table 5 includes a vibration table frame 50 horizontally disposed and a mounting table 51 disposed on the vibration table frame 50, and an upper surface of the mounting table 51 is obliquely disposed and adapted to an actual mounting angle of the steering wheel 1.
The installation of the mount base 51 allows the steering wheel 1 to be adapted to the installation angle of the actual vehicle, thereby simulating the actual installation state of the steering wheel 1 in the actual vehicle.
Further, as shown in fig. 5, the driving device 7 includes a clamping jaw 70 and a motor 71, the clamping jaw 70 is used for clamping the steering wheel 1; the motor 71 is connected to the test chamber 4, and its driving shaft is connected to the jaw 70, and is used to drive the steering wheel 1 to rotate through the jaw 70.
Two schemes are realized by the rotation of the steering wheel 1:
1. a spoke for turning a steering wheel 1: the driving shaft of the motor 71 and the clamping jaw 70 are connected by using an elastic coupling, the connection stability is high, but a gap exists between the clamping jaw 70 and the spoke, so that a certain deviation exists in the rotation precision, and the accumulated error of repeated positioning exists, and the error is about 2.5 times of the reserved gap between the clamping jaw 70 and the spoke.
2. The other clamping jaw 70 clamps the outer ring of the steering wheel 1, a loading shaft coaxial with the steering wheel 1 is led out, and the loading shaft is connected with a driving shaft of a motor 71 through a universal telescopic coupling. The vibration table 5 moves up and down, the universal telescopic coupling can ensure that no interference is generated in vibration, and the two ends of the universal shaft are ensured to be parallel by the tool, so that the motion transmitted by the motor 71 is accurate and uniform. However, the motor 71 is stationary due to the vibration of the steering column 3, and the universal telescopic coupling is easily damaged.
Furthermore, in the first solution, the clamping jaw 70 comprises a connecting plate 700 and two clamping plates 701 respectively arranged at two sides of the connecting plate 700, and the connecting plate 700 is connected with the driving shaft; a clamping space for clamping spokes of the steering wheel 1 is formed between the two clamping plates 701; and the inner side of the clamping plate 701 is concavely provided with an arc groove which is matched with the outer surface of the spoke.
The arc grooves are arranged to increase the contact area between the clamping plate 701 and the spokes, so that the friction force is increased, and the stability of the clamping jaw 70 is improved.
Example 2:
the embodiment 2 of the application provides a method for testing the connection reliability of a steering wheel and a clock spring, which comprises the following steps:
s1: providing a test system;
s2: fixing the steering column 3 on the vibration table 5;
s3: controlling the vibrating table 5 to vibrate, driving the steering wheel 1 to rotate around the steering column 3 at the same time, and driving the clock spring 2 to rotate;
s4: collecting a conducting signal of the plug connector 6;
s5: judging whether the plug connector 6 is disconnected or not according to the conducting signal, and verifying whether the preset assembly tolerance is qualified or not;
s6: if the conducting signal does not meet the conducting condition, judging that the plug connector 6 is disconnected, and determining that the preset assembly tolerance is unqualified;
s7: and if the conducting signal meets the conducting condition, judging that the plug connector 6 is not disconnected, and determining that the preset assembly tolerance is qualified.
The test process comprises the following steps:
first, a vibration signal, which is a vibration signal for testing the noise of the steering wheel 1, is input, and the cycle of vibration (sinusoidal excitation) is specified as follows: the road was swept at 10m/s2 longitudinal acceleration, from 10Hz to 100Hz, and then from 100Hz to 10Hz at a 0.2Hz/s sweep rate to simulate a bumpy road surface.
Then, the initial position of the steering wheel 1 is in a counterclockwise dead-beat state, the steering wheel 1 is started to turn to a durable motion, the steering wheel 1 is rotated clockwise to the rightmost end and then anticlockwise to the leftmost end, the cycle is realized, and the repetition times, the temperature requirements and the turning frequency are detailed in table 1.
And finally, judging an experimental result:
in the experimental process, a conducting signal of a wire harness of the plug connector 6 is collected in real time, whether the plug connector 6 is disconnected or not is judged according to the conducting signal, and whether a preset assembly tolerance is qualified or not is verified;
if the conducting signal does not meet the conducting condition, judging that the plug connector 6 is disconnected, and determining that the preset assembly tolerance is unqualified;
and if the conducting signal meets the conducting condition, judging that the plug connector 6 is not disconnected, and determining that the preset assembly tolerance is qualified.
This application embodiment 2 drives the vibration of steering wheel 1 through shaking table 5, simulates the road surface of jolting to and drive steering wheel 1 through drive arrangement 7 and rotate around steering column 3, realize steering wheel 1's durable that turns to, but also through setting up the humiture in the proof box 4, simulate real car service environment, thereby verify on the road surface of jolting to and steering wheel 1 turns to the endurance test back, the reliability of steering wheel 1 and clock spring 2's being connected. In the process, the plug connector 6 can move in the mounting frame 12, the detection device 8 is used for collecting a conducting signal of a wire harness on the plug connector 6 to judge whether the wire harness on the plug connector 6 is disconnected or not, so that whether preset assembly tolerance is qualified or not is verified, and an instructive effect is achieved for actual assembly of the steering wheel 1 and the clock spring 2.
Preferably, when the mounting frame 12 of the steering wheel 1 is located at the first position 10 and the second position 11, the vertical distances between the plug 6 and the mounting frame 12 are respectively a first distance and a second distance; wherein the assembly tolerance is defined as: a difference between the second distance and the first distance; the plug-in unit 6 has a normal assembly state and a limit assembly state; when the assembly structure is in a normal assembly state, the preset assembly tolerance is a normal assembly tolerance, and when the assembly structure is in a limit assembly state, the preset assembly tolerance is a limit assembly tolerance, and the normal assembly tolerance is smaller than the limit assembly tolerance;
the steering wheel 1 rotates, so that the mounting frame 12 rotates from the first position 10 to the second position 11, and in the rotating process of the steering wheel 1, the plug connector 6 is driven to move in the mounting frame 12, so that assembly tolerance is generated; when the plug-in unit 6 is in a normal assembly state, the range of movement of the plug-in unit 6 in the mounting frame 12 is small, and the pulling degree of the wire harness is small; when the plug-in unit 6 is in the limit assembly state, the range of movement of the plug-in unit 6 in the mounting frame 12 is large, and the pulling degree of the wire harness is also large; therefore, in the embodiment 1 of the present application, whether the normal assembly tolerance and the limit assembly tolerance are qualified or not is verified to determine the qualified normal assembly tolerance and the qualified limit assembly tolerance so as to guide the actual assembly of the steering wheel 1 and the clock spring 2, and ensure that the clock spring 2 does not fail in the steering process of the steering wheel 1.
Judging whether the plug connector 6 is disconnected or not, and verifying whether the preset assembly tolerance is qualified or not, wherein the method specifically comprises the following steps:
s50: when the normal assembly tolerance is qualified and the limit assembly tolerance is qualified, the normal assembly tolerance and the limit assembly tolerance are used as the target normal assembly tolerance and the target limit assembly tolerance of the steering wheel 1 and the clock spring 2;
when the normal assembly tolerance is qualified and the limit assembly tolerance is qualified, the preset assembly tolerance is qualified, and in the actual vehicle installation, the target assembly tolerance between the steering wheel 1 and the clock spring 2 can be assembled according to the range contained by the normal assembly tolerance and the limit assembly tolerance so as to ensure the reliability of the connection of the steering wheel 1 and the clock spring 2.
S51: when the normal assembly tolerance is qualified and the limit assembly tolerance is unqualified, reducing the limit assembly tolerance and re-verifying whether the limit assembly tolerance is qualified or not;
when the normal assembly tolerance is qualified and the limit assembly tolerance is unqualified, the limit assembly tolerance is over-large, so the limit assembly tolerance needs to be reduced, whether a new limit assembly tolerance is qualified or not is verified again until the qualified limit assembly tolerance is determined, and the normal assembly tolerance and the qualified limit assembly tolerance are used as the target normal assembly tolerance and the target limit assembly tolerance of the steering wheel 1 and the clock spring 2.
S52: and when the normal assembly tolerance is unqualified and the limit assembly tolerance is unqualified, reducing the normal assembly tolerance and the limit assembly tolerance, and re-verifying whether the normal assembly tolerance and the limit assembly are qualified or not.
When the normal assembly tolerance is unqualified and the limit assembly tolerance is unqualified, the normal assembly tolerance and the limit assembly tolerance are both large, the normal assembly tolerance and the limit assembly tolerance are required to be reduced at the same time until the qualified normal assembly tolerance and the qualified limit assembly tolerance are determined, and the qualified normal assembly tolerance and the qualified limit assembly tolerance are used as the target normal assembly tolerance and the target limit assembly tolerance of the steering wheel 1 and the clock spring 2.
Optionally, the conduction condition is that the resistance value of the connection line of the plug-in unit 6 is greater than 7 Ω, and the duration is greater than 200 ns.
If the conducting signal does not satisfy: if the resistance value of the connecting line of the plug connector 6 is greater than 7 omega and the duration is greater than 200ns, judging that the plug connector 6 is disconnected and determining that the preset assembly tolerance is unqualified;
if the conducting signal satisfies: and if the resistance value of the connecting line of the plug connector 6 is greater than 7 omega and the duration is greater than 200ns, judging that the plug connector 6 is not disconnected, and determining that the preset assembly tolerance is qualified.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present application and are presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A test system for connection reliability of a steering wheel and a clock spring is characterized in that the steering wheel (1) and the clock spring (2) are connected through a plug connector (6) according to preset assembly tolerance, and the steering wheel (1) and the clock spring (2) are both mounted on a steering column (3); characterized in that, this test system includes:
a test chamber (4);
a vibration table (5) which is provided in the test chamber (4) and fixes the steering column (3);
a drive device (7) for connection to the steering wheel (1);
the detection device (8) is connected with the plug connector (6) and is used for collecting a conducting signal of the plug connector (6);
the control device (9) is connected with the vibration table (5), the driving device (7) and the detection device (8) and is used for controlling the vibration table (5) to vibrate and controlling the driving device (7) to drive the steering wheel (1) and the steering column (3) to rotate and drive the clock spring (2) to rotate; and the connector is also used for judging whether the connector (6) is disconnected or not according to the conducting signal and verifying whether the preset assembly tolerance is qualified or not.
2. The system for testing the connection reliability of the steering wheel and the clock spring as claimed in claim 1, wherein when the mounting frame (12) of the steering wheel (1) is located at the first position (10) and the second position (11), the vertical distance between the plug connector (6) and the mounting frame (12) is a first distance and a second distance, respectively;
the assembly tolerance is defined as: a difference between the second distance and the first distance;
the plug connector (6) has a normal assembly state and a limit assembly state;
when the assembly tolerance is in a normal assembly state, the preset assembly tolerance is a normal assembly tolerance, and when the assembly tolerance is in a limit assembly state, the preset assembly tolerance is a limit assembly tolerance, and the normal assembly tolerance is smaller than the limit assembly tolerance.
3. The system for testing the reliability of a steering wheel and clock spring connection of claim 2, wherein the normal assembly tolerance is less than 1mm and the extreme assembly tolerance is greater than 3 mm.
4. The system for testing the reliability of a steering wheel and clock spring connection according to claim 2, wherein the mounting frame (12) is in the direction of 12 o' clock of the steering wheel (1) when the mounting frame (12) is rotated to the first position (10); when the mounting frame (12) is rotated to the second position (11), the mounting frame (12) is in a direction of 6 o' clock of the steering wheel (1).
5. The system for testing the reliability of a connection of a steering wheel with a clock spring as claimed in claim 1, characterized in that said oscillating table (5) comprises:
a horizontally arranged vibration table (50);
and the mounting table (51) is arranged on the vibration table frame (50), and the upper surface of the mounting table (51) is obliquely arranged and is matched with the actual mounting angle of the steering wheel (1).
6. The test system of the reliability of the connection of the steering wheel with the clock spring according to claim 1, characterized in that the drive means (7) comprise:
a clamping jaw (70) for clamping the steering wheel (1);
a motor (71) which is connected with the test box (4) and the driving shaft (72) of which is connected with the clamping jaw (70) and is used for driving the steering wheel (1) to rotate through the clamping jaw (70).
7. The steering wheel and clock spring connection reliability test system of claim 6, wherein the jaw (70) comprises:
a connecting plate (700) connected to the drive shaft (72);
the two clamping plates (701) are respectively arranged on two sides of the connecting plate (700), and a clamping space for clamping spokes of the steering wheel (1) is formed between the two clamping plates (701); and the inner side of the clamping plate (701) is concavely provided with an arc groove, and the arc groove is matched with the outer surface of the spoke.
8. A test method for connection reliability of a steering wheel and a clock spring is characterized by comprising the following steps:
providing a test system according to claim 1;
fixing the steering column (3) on the vibration table (5);
controlling the vibration table (5) to vibrate, simultaneously driving the steering wheel (1) and the steering column (3) to rotate, and driving the clock spring (2) to rotate;
collecting a conducting signal of the plug connector (6);
judging whether the plug connector (6) is disconnected or not according to the conducting signal, and verifying whether the preset assembly tolerance is qualified or not;
if the conducting signal does not meet the conducting condition, the plug connector (6) is judged to be disconnected, and the preset assembling tolerance is determined to be unqualified;
and if the conducting signal meets the conducting condition, judging that the plug connector (6) is not disconnected, and determining that the preset assembly tolerance is qualified.
9. The method for testing the reliability of a connection of a steering wheel and a clock spring according to claim 8, wherein:
when the mounting frame (12) of the steering wheel (1) is located at a first position (10) and a second position (11), the vertical distances between the plug connector (6) and the mounting frame (12) are respectively a first distance and a second distance;
the tolerance is defined as: a difference between the second distance and the first distance;
the plug connector (6) has a normal assembly state and a limit assembly state;
when the assembly tolerance is in a normal assembly state, the preset assembly tolerance is a normal assembly tolerance, and when the assembly tolerance is in a limit assembly state, the preset assembly tolerance is a limit assembly tolerance, and the normal assembly tolerance is smaller than the limit assembly tolerance;
judging whether the plug connector (6) is disconnected or not, and verifying whether the preset assembly tolerance is qualified or not, wherein the method specifically comprises the following steps:
when the normal assembly tolerance is qualified and the limit assembly tolerance is qualified, taking the normal assembly tolerance and the limit assembly tolerance as a target normal assembly tolerance and a target limit assembly tolerance of the steering wheel (1) and the clock spring (2);
when the normal assembly tolerance is qualified and the limit assembly tolerance is unqualified, reducing the limit assembly tolerance and re-verifying whether the limit assembly tolerance is qualified or not;
and when the normal assembly tolerance is unqualified and the limit assembly tolerance is unqualified, reducing the normal assembly tolerance and the limit assembly tolerance, and re-verifying whether the normal assembly tolerance and the limit assembly are qualified or not.
10. The method for testing the reliability of the connection between the steering wheel and the clock spring as claimed in claim 8, wherein the conduction condition is that the resistance of the connection line of the plug (6) is greater than 7 Ω and the duration is greater than 200 ns.
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| CN202110968063.6A CN113758733B (en) | 2021-08-23 | 2021-08-23 | System and method for testing connection reliability of steering wheel and clock spring |
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| CN202110968063.6A CN113758733B (en) | 2021-08-23 | 2021-08-23 | System and method for testing connection reliability of steering wheel and clock spring |
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| CN113758733B CN113758733B (en) | 2024-01-16 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998017504A1 (en) * | 1996-10-21 | 1998-04-30 | United Technologies Automotive, Inc. | Steering wheel assembly |
| FR2861357A1 (en) * | 2003-10-28 | 2005-04-29 | Tokai Rubber Ind Ltd | Vibration control system for steering system, has control device and drive portion to control drive of vehicle engine based on control signal so that engine is driven for transmitting oscillation to steering system to attenuate vibrations |
| WO2009062961A1 (en) * | 2007-11-17 | 2009-05-22 | Tyco Electronics Amp Gmbh | Clock spring |
| CN101776520A (en) * | 2009-12-25 | 2010-07-14 | 奇瑞汽车股份有限公司 | Automobile clock spring durability test device |
| CN102116820A (en) * | 2010-12-30 | 2011-07-06 | 重庆长安汽车股份有限公司 | Control system for durability test device of car rotary connector |
| CN102128960A (en) * | 2010-12-30 | 2011-07-20 | 重庆长安汽车股份有限公司 | Assembling table frame of test device for durability of automobile rotary connector |
| CN202433180U (en) * | 2011-12-30 | 2012-09-12 | 长城汽车股份有限公司 | Test bed for clock spring of supplementary restraint system |
| CN202522398U (en) * | 2012-02-21 | 2012-11-07 | 浙江豪情汽车制造有限公司 | Durability test device for clock spring, steering column and intermediate shaft of automobile |
| CN105466676A (en) * | 2015-12-11 | 2016-04-06 | 力帆实业(集团)股份有限公司 | Vehicle clock spring durability testing machine control system and test method |
| CN205246462U (en) * | 2015-12-11 | 2016-05-18 | 力帆实业(集团)股份有限公司 | Automobile -used clock spring endurance test machine |
| CN106949933A (en) * | 2017-04-07 | 2017-07-14 | 吉利汽车研究院（宁波）有限公司 | A kind of detection method of wire harness plug-in connecting component |
| KR20180069320A (en) * | 2016-12-15 | 2018-06-25 | 현대자동차주식회사 | Matching structure of steering column and clock spring |
| KR102127423B1 (en) * | 2018-12-27 | 2020-06-26 | 주식회사 세원정공 | Durability testing method and system for a motor driven power steering mounting part |
| CN111855167A (en) * | 2020-06-08 | 2020-10-30 | 东风柳州汽车有限公司 | Device and method for testing durability of spiral cable of steering wheel |
| CN213934035U (en) * | 2020-09-28 | 2021-08-10 | 法雷奥汽车内部控制（深圳）有限公司 | Automobile clock spring and angle sensor endurance test device |
-
2021
- 2021-08-23 CN CN202110968063.6A patent/CN113758733B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998017504A1 (en) * | 1996-10-21 | 1998-04-30 | United Technologies Automotive, Inc. | Steering wheel assembly |
| FR2861357A1 (en) * | 2003-10-28 | 2005-04-29 | Tokai Rubber Ind Ltd | Vibration control system for steering system, has control device and drive portion to control drive of vehicle engine based on control signal so that engine is driven for transmitting oscillation to steering system to attenuate vibrations |
| WO2009062961A1 (en) * | 2007-11-17 | 2009-05-22 | Tyco Electronics Amp Gmbh | Clock spring |
| CN101776520A (en) * | 2009-12-25 | 2010-07-14 | 奇瑞汽车股份有限公司 | Automobile clock spring durability test device |
| CN102116820A (en) * | 2010-12-30 | 2011-07-06 | 重庆长安汽车股份有限公司 | Control system for durability test device of car rotary connector |
| CN102128960A (en) * | 2010-12-30 | 2011-07-20 | 重庆长安汽车股份有限公司 | Assembling table frame of test device for durability of automobile rotary connector |
| CN202433180U (en) * | 2011-12-30 | 2012-09-12 | 长城汽车股份有限公司 | Test bed for clock spring of supplementary restraint system |
| CN202522398U (en) * | 2012-02-21 | 2012-11-07 | 浙江豪情汽车制造有限公司 | Durability test device for clock spring, steering column and intermediate shaft of automobile |
| CN105466676A (en) * | 2015-12-11 | 2016-04-06 | 力帆实业(集团)股份有限公司 | Vehicle clock spring durability testing machine control system and test method |
| CN205246462U (en) * | 2015-12-11 | 2016-05-18 | 力帆实业(集团)股份有限公司 | Automobile -used clock spring endurance test machine |
| KR20180069320A (en) * | 2016-12-15 | 2018-06-25 | 현대자동차주식회사 | Matching structure of steering column and clock spring |
| CN106949933A (en) * | 2017-04-07 | 2017-07-14 | 吉利汽车研究院（宁波）有限公司 | A kind of detection method of wire harness plug-in connecting component |
| KR102127423B1 (en) * | 2018-12-27 | 2020-06-26 | 주식회사 세원정공 | Durability testing method and system for a motor driven power steering mounting part |
| CN111855167A (en) * | 2020-06-08 | 2020-10-30 | 东风柳州汽车有限公司 | Device and method for testing durability of spiral cable of steering wheel |
| CN213934035U (en) * | 2020-09-28 | 2021-08-10 | 法雷奥汽车内部控制（深圳）有限公司 | Automobile clock spring and angle sensor endurance test device |
Non-Patent Citations (2)
| Title |
|---|
| 李赛;陈泰吉;郑忠辉;: "基于整车的转向***耐久测试研究", 时代汽车, no. 14, pages 11 - 12 * |
| 马燕: "时钟弹簧失效问题分析与解决", 汽车零部件, no. 1, pages 53 - 55 * |
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