CN109839322A - A kind of knuckle test device and test method - Google Patents
A kind of knuckle test device and test method Download PDFInfo
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- CN109839322A CN109839322A CN201910005409.5A CN201910005409A CN109839322A CN 109839322 A CN109839322 A CN 109839322A CN 201910005409 A CN201910005409 A CN 201910005409A CN 109839322 A CN109839322 A CN 109839322A
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Abstract
The invention discloses a kind of knuckle test devices, comprising: pedestal, driving assembly, force component and control assembly；Knuckle and driving assembly are located on pedestal；Force component one end is connect with driving assembly, and the other end is connect with knuckle mounting hole；Driving assembly drives force component to apply along axial push-pull effort knuckle；Control assembly is electrically connected with driving assembly, controls opening or closing for driving assembly.Also disclose a kind of test method using knuckle test device.The present invention passes through dedicated force component, knuckle is connect with driving assembly, according to experiment load, test the endurance of knuckle mounting hole, ensure that knuckle mounting hole meets design requirement, the faster and better gap between comparative simulation result and experimental result, and then the gap between the two is reduced, to construct the Product Validation system that design and test are combined closely.
Description
Technical field
The present invention relates to auto parts and components the field of test technology, in particular to a kind of knuckle test device and test side
Method.
Background technique
Knuckle is the important component of automobile suspension system, connects wheel hub and irs control arm, at the same be knuckle arm with
The installation carrier of brake caliper bears automobile front load, supports and front-wheel is driven to rotate around stub and make motor turning, it is ensured that
Vehicle steadily traveling and sensitive transmitting driving direction.Under vehicle driving state, it subjects load working condition complicated and changeable.Cause
This needs biggish rigidity and enough intensity and safety coefficient；Also to mitigate quality as far as possible simultaneously, to meet operation stabilization
Property and the light-weighted requirement of vehicle.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of knuckle test device is provided, for testing the durable of knuckle mounting hole
Degree, by dedicated force component, the matching component being used cooperatively with knuckle mounting hole is connect with driving assembly, according to reality
Load is tested, tests the endurance of knuckle mounting hole, it is ensured that knuckle mounting hole meets design requirement, faster and better compares
Gap between analog result and experimental result, and then the gap between the two is reduced, it is combined closely with building design and test
Product Validation system.
In order to solve the above technical problems, the first aspect of the embodiment of the present invention provides a kind of knuckle test device, use
In the durability degree of test knuckle mounting hole, comprising: pedestal, driving assembly, force component and control assembly；The knuckle and
The driving component is located on the pedestal；Described force component one end is connect with the driving component, the other end with described turn
To section mounting hole connection；The driving component drives the force component to apply along axial push-pull effort the knuckle；Institute
It states control assembly to be electrically connected with the driving component, controls opening or closing for the driving component.
Further, the knuckle test device further include: matching component, described matching component one end turn through described
It to section mounting hole, and is detachably connected with the knuckle, the other end is detachably connected with the force component.
Further, the knuckle mounting hole be circle, the matching component close to the knuckle mounting hole one
The shape at end matches with the knuckle mounting hole.
Further, the force component includes force-application block and force application rod；The force-application block be C-shaped configuration, one end with
The knuckle connection, the other end are connect with one end of the force application rod；The other end of the force application rod and the driving group
Part connection.
Further, the force-application block is to be fixedly connected or be integrally formed with the force application rod.
Further, the driving component includes: connecting rod；The connecting rod and the force application rod are detachably connected and together
Axis.
Further, the connecting pin of the connecting rod and the force application rod is U-shaped or c-type structure, the connecting rod it is U-shaped or
C-type structure both ends are equipped with first through hole；The connecting pin of the force application rod and the connecting rod is equipped with the second through-hole；Described second is logical
Hole matches with the first through hole, and is bolted.
Further, the driving component includes: cylinder or hydraulic cylinder.
Further, the control assembly includes: display unit, and the display unit is to show that the driving component pushes away
Displacement parameter, setting push-pull effort cycle-index, push-pull effort cycle-index and/or remaining push-pull effort circulation is completed in pulling force parameter
Number.
Further, the knuckle test device further include: location component, the location component include: the first adjustment
Component, second adjustment component and/or fixation member；The first adjustment component be set to the knuckle and the pedestal it
Between, for adjusting the tilt angle and vertical distance of the knuckle Yu the pedestal；The second adjustment component is set to institute
It states between driving assembly and the pedestal, for adjusting the vertical distance of the driving component Yu the pedestal；The fixed part
Part is set on the first adjustment component, is detachably connected with the knuckle.
Further, the knuckle test device further include: displacement sensor, institute's displacement sensors are set to described
Predeterminated position on knuckle, for detecting the knuckle predeterminated position displacement；Institute's displacement sensors and the control
Component communication connection.
The second aspect of the embodiment of the present invention provides a kind of knuckle test method, including the steering in above-described embodiment
Test device is saved, is included the following steps:
S100 presets push-pull effort based on driving assembly, and control the driving component runs the first preset loop number；
S200, checks whether knuckle has crackle, terminates to test and execute step S400 if "Yes", execute if "No"
Step S300；
Whether S300, the number that driving assembly described in checking step S100 runs the first preset loop number reach first
Preset times, if "Yes" thens follow the steps S400, as "No" thens follow the steps S100；
S400 records the cycle-index of the driving component actual motion.
Further, the test method further includes following steps:
The default push-pull effort of the driving component is improved preset ratio value by S500；
S600, control the driving component run the second preset loop number；
S700, detects whether the knuckle has crackle, terminates to test and execute step S900 if "Yes", if "No"
Execute step S800；
Whether S800, the raising number that push-pull effort is preset described in detecting step S400 reach the second preset times, such as
"Yes" then terminates to test and execute step S900, as "No" thens follow the steps S500；
S900 records the actual push-pull effort numerical value of the driving component.
Further, displacement sensor monitors the actual displacement amount of the knuckle predeterminated position, and by the actual bit
Shifting amount information is sent to control assembly；The control assembly compares the actual displacement amount and preset displacement amount, such as the reality
Border displacement is greater than the preset displacement amount, then it is out of service to control the driving component.
The above-mentioned technical proposal of the embodiment of the present invention has following beneficial technical effect:
By dedicated force component, knuckle is connect with driving assembly, according to experiment load, test knuckle installation
The endurance in hole, it is ensured that knuckle mounting hole meets design requirement, faster and better comparative simulation result and experimental result it
Between gap, and then the gap between the two is reduced, to construct design and the Product Validation system combined closely of test.
Detailed description of the invention
Fig. 1 is the schematic perspective view of knuckle test device provided in an embodiment of the present invention；
Fig. 2 is the perspective view of the explosion of knuckle test device provided in an embodiment of the present invention；
Fig. 3 is the load stress diagram of knuckle provided in an embodiment of the present invention；
Fig. 4 is the schematic perspective view of force component provided in an embodiment of the present invention；
Fig. 5 is the schematic perspective view of matching component provided in an embodiment of the present invention；
Fig. 6 is the connection schematic diagram of force component and matching component provided in an embodiment of the present invention；
Fig. 7 is the flow chart for the knuckle test method that one embodiment of the invention provides；
Fig. 8 be another embodiment of the present invention provides knuckle test method flow chart.
Appended drawing reference:
1, pedestal, 2, driving assembly, 21, connecting rod, 3, force component, 31, force-application block, 32, force application rod, 4, mating group
Part, 51, the first adjustment component, 52, second adjustment component, 53, fixation member, 6, knuckle.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
Fig. 1 is the schematic perspective view of knuckle test device provided in an embodiment of the present invention.
Fig. 2 is the perspective view of the explosion of knuckle test device provided in an embodiment of the present invention.
Fig. 3 is the load stress diagram of knuckle provided in an embodiment of the present invention.
Referring to Fig.1 and 2, the first aspect of the embodiment of the present invention provides a kind of knuckle test device, for surveying
Try the durability degree of 6 mounting hole of knuckle, comprising: pedestal 1, driving assembly 2, force component 3 and control assembly；Knuckle 6 and drive
Dynamic component 2 is located on pedestal 1；Force 3 one end of component is connect with driving assembly 2, and the other end is connect with 6 mounting hole of knuckle；It drives
Dynamic component 2 drives force component 3 to apply along axial push-pull effort knuckle 6；Control assembly is electrically connected with driving assembly 2, control
Driving assembly 2 processed opens or closes.Knuckle 6 is connect with driving assembly 2, is pressed by dedicated force component 3 by the present invention
Load is according to the facts tested, tests the endurance of 6 mounting hole of knuckle, it is ensured that 6 mounting hole of knuckle meets design requirement, more preferably faster
Gap between ground comparative simulation result and experimental result, and then the gap between the two is reduced, it is close with building design and test
In conjunction with Product Validation system.
Fig. 4 is the schematic perspective view of force component provided in an embodiment of the present invention.
Fig. 5 is the schematic perspective view of matching component provided in an embodiment of the present invention.
Fig. 6 is the connection schematic diagram of force component and matching component provided in an embodiment of the present invention.
In an embodiment of the embodiment of the present invention, knuckle test device further include: matching component 4, mating group
6 mounting hole of knuckle is run through in 4 one end of part, and is detachably connected with knuckle 6, and the other end is detachably connected with force component 3.
As shown in Figure 3 and Figure 5, in the present embodiment, matching component 4 is back lower controlling arm bulb, one end and force component 3
It is bolted, the other end runs through 6 mounting hole of knuckle, is detachably connected by nut and the realization of knuckle 6, i.e., mating group
The two sides of part 4 and 6 mounting hole of knuckle are to contradict connection, and driving assembly 2 applies one to matching component 4 by force component 3
A push-pull effort along axial direction, and two side positions of 6 mounting hole of knuckle are acted on, to test the durability degree of 6 mounting hole of knuckle.
Optionally, 6 mounting hole of knuckle be circle, matching component 4 close to one end of 6 mounting hole of knuckle shape with turn
Match to 6 mounting holes of section.In the present embodiment, knuckle mounting hole is circle, the lower control after being of matched matching component 4
Arm bulb processed, but invention is not limited thereto system, as long as the test device of knuckle installation site, in protection of the invention
Within the scope of.
The component 3 that exerts a force includes force-application block 31 and force application rod 32；Force-application block 31 is C-shaped configuration, and one end and knuckle 6 connect
It connects, the other end is connect with one end of force application rod 32；The other end of force application rod 32 is connect with driving assembly 2.It force-application block 31 and applies
Power bar 32 is to be fixedly connected or be integrally formed.
In the present embodiment, one end setting that force-application block 31 is connect with matching component is fluted, corresponding with matching component 4 to connect
The shape for connecing end matches, and to be detachably connected, is specially bolted.Optionally, driving assembly 2 includes: cylinder or liquid
Cylinder pressure.Preferably, driving assembly 2 is hydraulic cylinder.Cylinder is the baric systerm component that air pressure is changed into mechanical energy.Hydraulic cylinder
For by hydraulic energy be changed into mechanical energy, do straight reciprocating motion or the hydraulic system components of pendulum motion.Relative to cylinder, liquid
The work smoothness and response speed of cylinder pressure are more preferable.
In an embodiment of the embodiment of the present invention, driving assembly 2 includes: connecting rod 21；Connecting rod 21 and force
Bar 32 is detachably connected and coaxially.
The connecting pin of connecting rod 21 and force application rod 32 is U-shaped or c-type structure, and the U-shaped or c-type structure both ends of connecting rod 21 are set
There is first through hole；The connecting pin of force application rod 32 and connecting rod 21 is equipped with the second through-hole；Second through-hole matches with first through hole, and
It is bolted.
Control assembly includes: display unit, display unit to show the push-and-pull force parameter of driving assembly, displacement parameter,
Push-pull effort cycle-index and/or remaining push-pull effort cycle-index is completed in setting push-pull effort cycle-index.User can turn to
It saves in test process, current testing progress is obtained by display unit；And test pause or stop when, driving assembly 2 into
Capable cycle-index obtains the test result of knuckle 6.
In an embodiment of the embodiment of the present invention, knuckle test device further include: location component, location component
It include: the first adjustment component 51, second adjustment component 52 and/or fixation member 53；The first adjustment component 51 is set to knuckle 6
Between pedestal 1, for adjusting the tilt angle and vertical distance of knuckle 6 Yu pedestal 1；Second adjustment component 52 is set to drive
Between dynamic component 2 and pedestal 1, for adjusting the vertical distance of driving assembly 2 Yu pedestal 1；Fixation member 53 is set to angle tune
On integeral part 51, it is detachably connected with knuckle 6.
In an embodiment of the embodiment of the present invention, knuckle test device further include: displacement sensor, displacement pass
Sensor is set to the predeterminated position on knuckle 6 close to mounting hole, for detecting the predeterminated position near 6 mounting hole of knuckle
Displacement；Displacement sensor is electrically connected with control assembly.Predeterminated position displacement sensor is mainly used in 6 test process of knuckle
In, if the not up to preset cycle-index of knuckle 6 occurs as soon as when largely damaging, or because other reasons cause to turn to
Section 6 is mobile, and when the actual displacement amount that displacement sensor is transferred to control device is greater than preset displacement amount, control assembly makes driving group
Part 2 is out of service, and entire test device stops working, and checks to user test device, it is ensured that equipment safety.
Fig. 7 is the flow chart for the knuckle test method that one embodiment of the invention provides.
Fig. 7 is please referred to, the second aspect of the embodiment of the present invention provides a kind of knuckle test method, in driving assembly 2
Under conditions of default push-pull effort, the maximum push-and-pull number that knuckle 6 can bear is tested, or test knuckle 6 bears to preset
Push-and-pull number when whether cracked or damage, and record the practical push-and-pull number that knuckle 6 is finally born, specifically include as
Lower step:
S100 presets push-pull effort based on driving assembly 2, and control driving assembly 2 runs the first preset loop number.
S200, checks whether knuckle 6 has crackle, terminates to test and execute step S400 if "Yes", hold if "No"
Row step S300.
It is pre- whether the number that driving assembly 2 runs the first preset loop number in S300, checking step S100 reaches first
If number, if "Yes" thens follow the steps S400, as "No" thens follow the steps S100.
S400 records the cycle-index of 2 actual motion of the driving component.
Fig. 8 be another embodiment of the present invention provides knuckle test method flow chart.
Fig. 8 is please referred to, on the basis of the maximum receiving push-and-pull number of test knuckle 6, if knuckle 6 does not occur
Crackle or damage, knuckle test method further include that the test of push-pull effort is improved to knuckle 6, step up driving assembly 2
Push-pull effort numerical value, the maximum push-pull effort numerical value that test knuckle 6 can bear, or test knuckle 6 bear preset push-and-pull
When power numerical value whether cracked or damage, and record the practical push-pull effort numerical value that knuckle 6 is finally born, specifically include as follows
Step:
The default push-pull effort of driving assembly 2 is improved preset ratio value by S500.
S600, control driving assembly 2 run the second preset loop number.
Whether S700, detection knuckle 6 have crackle, terminate to test and execute step S900 if "Yes", hold if "No"
Row step S800.
Whether the raising number that push-pull effort is preset in S800, detecting step S400 reaches the second preset times, if "Yes"
Terminate to test and execute step S900, as "No" thens follow the steps S500.
S900 records the actual push-pull effort numerical value of driving assembly 2.
In an embodiment of the embodiment of the present invention, the push-pull effort of driving assembly 2 includes: mean value and amplitude.Driving
The range for the push-pull effort that component 2 applies knuckle 6 by force component for and amplitude difference to the sum of mean value and amplitude.It is optional
, in above-mentioned knuckle test method, the numerical value of default push-pull effort is improved according to preset ratio value, to improve push-pull effort numerical value
Mean value and/or amplitude.
In an embodiment of the embodiment of the present invention, displacement sensor monitors the actual bit of 6 predeterminated position of knuckle
Shifting amount, and actual displacement amount information is sent to control assembly；Control assembly compares actual displacement amount and preset displacement amount, such as
Actual displacement amount is greater than preset displacement amount, then it is out of service to control driving assembly 2.
The test of the maximum cycle and maximum push-pull effort numerical value that can bear below to knuckle 6 is illustrated:
It controls driving assembly 2 to recycle 200000 times, whether detection knuckle 6 has crackle, as controlled driving assembly 2 again without if
Secondary circulation 200000 times detects whether knuckle 6 has crackle again.Prove that knuckle 6 is carrying out 4,000,000,000 if flawless
It is remained intact when secondary cycle-index.
The mean value of push-pull effort and/or amplitude are increased by 25%, and controls driving assembly 2 and runs 200000 times；Wherein, often into
Row 40000 times, i.e. whether detection knuckle 6 has crackle, continues operation if flawless to next detecting step, until originally
Loop cycle number is completed.
The mean value of push-pull effort and/or amplitude are increased by 25% again if flawless, and control the operation of driving assembly 2
200000 times；Wherein, every to carry out 40000 times, i.e. whether detection knuckle 6 has crackle, continues operation if flawless extremely
Next detecting step, until this period cycle-index is completed.
The mean value of push-pull effort and/or amplitude are increased by 25% by third time if flawless, and control the operation of driving assembly 2
200000 times；Wherein, every to carry out 40000 times, i.e. whether detection knuckle 6 has crackle, continues operation if flawless extremely
Next detecting step, until this test process terminates.Proved if flawless knuckle 6 by default push-pull effort improve 3 times,
It remains to remain intact when improving 25% every time.
Every numerical value of above-described embodiment is only to be illustrated to this test method, system that invention is not limited thereto, as long as
Testing procedure is identical, that is, falls into protection scope of the present invention.
The stability test of multiple 6 durability degrees of knuckle in each position of automobile is illustrated below:
The knuckle 6 for choosing the different location of automobile to be tested is tested, and is turned to obtaining each position in entire automobile
Save the data of 6 durability degree stability.
It chooses the knuckle 6 on the right side of the knuckle 6 and 3 in 3 left sides to be tested, each 6 testing procedure of knuckle is such as
Under:
It controls driving assembly 2 to run 200000 times, whether detection knuckle 6 has crackle.
Such as flawless, then controls driving assembly 2 and run 200000 times again, it is every to carry out 40000 times, i.e. detection knuckle 6
Whether crackle is had, it is cracked, stop testing.
Using the test result of above-mentioned 6 knuckles 6 as foundation, the stability test data of knuckle 6 can be obtained.
The embodiment of the present invention is intended to protect a kind of knuckle test device, comprising: pedestal, driving assembly, force component and
Control assembly；Knuckle and driving assembly are located on pedestal；Force component one end is connect with driving assembly, the other end and knuckle
Mounting hole connection；Driving assembly drives force component to apply along axial push-pull effort knuckle；Control assembly and driving assembly
Electrical connection, controls opening or closing for driving assembly.Also protect a kind of test method using knuckle test device.Above-mentioned skill
Art scheme has following effect:
By dedicated force component, knuckle is connect with driving assembly, according to experiment load, test knuckle installation
The endurance in hole, it is ensured that knuckle mounting hole meets design requirement, faster and better comparative simulation result and experimental result it
Between gap, and then the gap between the two is reduced, to construct design and the Product Validation system combined closely of test.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (14)
1. a kind of knuckle test device, for testing the durability degree of knuckle (6) mounting hole characterized by comprising pedestal
(1), driving assembly (2), force component (3) and control assembly；
The knuckle (6) and the driving component (2) are located on the pedestal (1)；
The force component (3) one end is connect with the driving component (2), and the other end is connect with the knuckle (6) mounting hole；
The driving component (2) drives force component (3) to apply along axial push-pull effort the knuckle (6)；
The control assembly is electrically connected with the driving component (2), and control the driving component (2) opens or closes.
2. knuckle test device according to claim 1, which is characterized in that further include:
Matching component (4), described matching component (4) one end run through the knuckle (6) mounting hole, and with the knuckle (6)
It is detachably connected, the other end is detachably connected with the force component (3).
3. knuckle test device according to claim 2, which is characterized in that
Knuckle (6) the mounting hole cross section is circle, and the matching component (4) is close to the knuckle (6) mounting hole
The shape of one end matches with the knuckle (6) mounting hole.
4. knuckle test device according to claim 1, which is characterized in that
The force component (3) includes force-application block (31) and force application rod (32)；
The force-application block (31) is C-shaped configuration, and one end is connect with the knuckle (6), the other end and the force application rod
(32) one end connection；
The other end of the force application rod (32) is connect with the driving component (2).
5. knuckle test device according to claim 4, which is characterized in that
The force-application block (31) is to be fixedly connected or be integrally formed with the force application rod (32).
6. knuckle test device according to claim 5, which is characterized in that
The driving component (2) includes: connecting rod (21)；
The connecting rod (21) and the force application rod (32) are detachably connected and coaxially.
7. knuckle test device according to claim 6, which is characterized in that
The connecting pin of the connecting rod (21) and the force application rod (32) is U-shaped or c-type structure, and the connecting rod (21) is U-shaped or C
Type structure both ends are equipped with first through hole；
The connecting pin of the force application rod (32) and the connecting rod (21) is equipped with the second through-hole；
Second through-hole matches with the first through hole, and is bolted.
8. knuckle test device according to claim 1, which is characterized in that
The driving component (2) includes: cylinder or hydraulic cylinder.
9. knuckle test device according to claim 1, which is characterized in that
The control assembly includes: display unit, push-and-pull force parameter, position of the display unit to show the driving component
Push-pull effort cycle-index and/or remaining push-pull effort cycle-index is completed in shifting parameter, setting push-pull effort cycle-index.
10. knuckle test device according to claim 1, which is characterized in that further include:
Location component, the location component include: the first adjustment component (51), second adjustment component (52) and/or fixation member
(53)；
The first adjustment component (51) is set between the knuckle (6) and the pedestal (1), for adjusting the steering
Save the tilt angle and vertical distance of (6) and the pedestal (1)；
The second adjustment component (52) is set between the driving component (2) and the pedestal (1), for adjusting the drive
The vertical distance of dynamic component (2) and the pedestal (1)；
The fixation member (53) is set on the first adjustment component (51), is detachably connected with the knuckle (6).
11. knuckle test device according to claim 1, which is characterized in that further include:
Displacement sensor, institute's displacement sensors are set to the predeterminated position on the knuckle (6), for detecting the steering
Save the displacement of (6) predeterminated position；
Institute's displacement sensors are electrically connected with the control assembly.
12. a kind of test method of such as described in any item knuckle test devices of claim 1-11, which is characterized in that including
Following steps:
S100 presets push-pull effort based on driving assembly (2), and control the driving component (2) runs the first preset loop number；
S200, checks whether knuckle (6) have crackle, terminates to test and execute step S400 if "Yes", execute if "No"
Step S300；
Whether S300, the number that driving assembly described in checking step S100 (2) runs the first preset loop number reach first
Preset times, if "Yes" thens follow the steps S400, as "No" thens follow the steps S100；
S400 records the cycle-index of the driving component (2) actual motion.
13. test method according to claim 12, which is characterized in that further include following steps:
The default push-pull effort of the driving component (2) is improved preset ratio value by S500；
S600, control the driving component (2) run the second preset loop number；
S700, detects whether the knuckle (6) has crackle, terminates to test and execute step S900 if "Yes", if "No"
Execute step S800；
S800, whether the raising number that push-pull effort is preset described in detecting step S400 reaches the second preset times, if "Yes"
Terminate to test and execute step S900, as "No" thens follow the steps S500；
S900 records the driving component (2) actual push-pull effort numerical value.
14. test method according to claim 12 or 13, which is characterized in that
Displacement sensor monitors the actual displacement amount of knuckle (6) predeterminated position, and the actual displacement amount information is passed
It send to control assembly；
The control assembly compares the actual displacement amount and preset displacement amount, and such as actual displacement amount is greater than described default
It is out of service then to control the driving component (2) for displacement.
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| CN201910005409.5A CN109839322A (en) | 2019-01-03 | 2019-01-03 | A kind of knuckle test device and test method |
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| CN201910005409.5A CN109839322A (en) | 2019-01-03 | 2019-01-03 | A kind of knuckle test device and test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235434A (en) * | 2021-12-06 | 2022-03-25 | 杭州飞进汽车零部件制造有限公司 | A steering knuckle detection device for automobile ABS |
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