CN205785839U - Body in white bending stiffness test platform - Google Patents
Body in white bending stiffness test platform Download PDFInfo
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- CN205785839U CN205785839U CN201620532439.3U CN201620532439U CN205785839U CN 205785839 U CN205785839 U CN 205785839U CN 201620532439 U CN201620532439 U CN 201620532439U CN 205785839 U CN205785839 U CN 205785839U
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Abstract
This utility model provides a kind of body in white bending stiffness test platform, relates to vehicle testing techniques.Described body in white bending stiffness test platform, including: front overhang pallet, retrain for dialogue body structure；Described front overhang pallet includes: rack base, and the two ends of described rack base are provided with two electric cylinders, and described electricity cylinder is for how described body in white imposed load；Being provided with ball pivot assembly on described electricity cylinder, described ball pivot assembly is for being connected with described body in white；One of them described electricity cylinder is connected with described rack base also by electricity cylinder bearing diagonal part.When body in white is left-right asymmetry, by two electric cylinders to body in white imposed load, the power power in opposite direction equal in magnitude being capable of application point controls, and to measure the deformation in various degree of the body in white left and right sides, is effectively improved the accuracy of body in white bending stiffness excitations.Additionally, body in white bending stiffness test platform may also include that rear overhang stand, for described body in white rear end is retrained.
Description
Technical field
This utility model relates to vehicle testing techniques, particularly relates to a kind of body in white bending stiffness test platform.
Background technology
The body in white of automobile has referred to welding but vehicle body before non-application, does not include car door, engine
The movement parts such as lid.Curved, the torsion rigidity of body in white are to evaluate body in white opposing bending and torsional deformability
Important technology index, body in white curved, turn round Static stiffness to the NVH performance of automobile and control stability
Also have a major impact.Therefore, in vehicle complete vehicle R&D process, body in white is carried out the torsion of static state
Analysis of experiments research with bending stiffness is requisite link.
In prior art, by torsional rigidity test of vehicular platform to body in white imposed load, by each on body in white
The displacement measurement parts arranged at test point gather displacement data, so that it is determined that the torsion that body in white is static
And bending stiffness.Wherein, torsional rigidity test of vehicular platform includes: front overhang stand, rear overhang stand and loading
System, front overhang stand, rear overhang stand are for supporting body in white and retraining the degree of freedom of body in white；Front overhang
Stand includes supporting seat and being arranged on the crossbeam supported on seat, and crossbeam is by suspension, ball pivot and body in white
Connect to support body in white；Loading system includes PTO and shaft-like charger, and power is defeated
Go out device for providing power, the power transmission that shaft-like charger provides for the device that outputs power
To crossbeam, and then the side imposed load to body in white.But, apply to carry to body in white by crossbeam
Lotus, the torsion of the body in white left and right sides is close, body in white asymmetric for the left and right sides, curved
The accuracy turning round stiffness excitations is poor.
Utility model content
For drawbacks described above of the prior art, this utility model provides a kind of body in white bending stiffness test
Platform, it is possible to be effectively improved the accuracy of body in white bending stiffness excitations.
This utility model provides a kind of body in white bending stiffness test platform, including: front overhang pallet, for right
Body in white front end retrains；Described front overhang pallet includes: rack base, the two ends of described rack base
Being provided with two electric cylinders, described electricity cylinder is for how described body in white imposed load；On described electricity cylinder, ball is installed
Hinge assembly, described ball pivot assembly is for being connected with described body in white；One of them described electricity cylinder is also by electricity
Cylinder bearing diagonal part is connected with described rack base.
Further, described ball pivot assembly includes: ball pivot body and ball pivot fix seat, and described ball pivot is fixed
Seat is connected with described electricity cylinder；Described ball pivot is fixed seat and is provided with force transducer, so that described force transducer leads to
Cross described ball pivot assembly to be connected with described body in white.
Further, described ball pivot is fixed and is offered slotted hole on seat, and the length direction of described slotted hole hangs down
Directly in the length direction of described rack base and be perpendicular to described ball pivot and fix the short transverse of seat, described ball
Hinge body can be along the length direction of described slotted hole and width translation.
Further, the two ends at the top of described rack base set electricity cylinder respectively and fix seat；Described electricity cylinder is solid
Reservation is provided with described electricity cylinder.
Further, described rack base includes: rotary stand, and the top of described rotary stand is provided with institute
State electricity cylinder and fix seat；The bottom of described rotary stand is provided with stand and supports seat, and described stand supports seat and is used for
Support described rotary stand.
Further, the middle part of described rotary stand is connected by bearing pin with described stand support seat；Described
The bottom of rotary stand be respectively arranged at two ends with regulation support bar, described regulation support bar is for described rotation
Turntable frame carries out leveling.
Further, described electricity cylinder fix seat by hinge hinge be connected with described rotary stand.
Further, the two ends of described rotary stand further respectively have loading connecting rod, and described loading connects
Bar is for being connected with outside charger, with by rotating described rotary stand to body in white imposed load.
Further, described body in white bending stiffness test platform also includes: rear overhang stand, for described
Body in white rear end retrains；Described rear overhang stand includes: fixed frame, and described fixed frame is provided with
Fixed plate, described fixed plate be respectively arranged at two ends with shifted laterally bearing, described shifted laterally bearing sets
Having elevator, described elevator to be provided with described ball pivot assembly, described ball pivot assembly is used for and described white car
Body connects.
The body in white bending stiffness test platform that this utility model provides, by arranging two in rack base
Electricity cylinder, arranges ball pivot assembly on electricity cylinder, and is connected with body in white by ball pivot, carries body in white at electricity cylinder
During for bending power, the power of electricity cylinder output passes to body in white through ball pivot assembly, to realize body in white
The purpose of imposed load；When body in white is left-right asymmetry, by two electric cylinders, body in white is executed
Add load, it is possible to the power power in opposite direction equal in magnitude realizing application point controls, left to measure body in white
The deformation in various degree of right both sides, is effectively improved the accuracy of body in white bending stiffness excitations.
Accompanying drawing explanation
Fig. 1 is the structural representation of front overhang pallet in this utility model body in white bending stiffness test platform；
Fig. 2 is the close-up schematic view of Fig. 1；
Fig. 3 is the structural representation of this utility model body in white bending stiffness test platform.
Wherein, 100-front overhang pallet；110-rack base；111-rotary stand；112-stand supports seat；
113-bearing pin；114-regulates support bar；115-loads connecting rod；120-electricity cylinder；Seat fixed by 121-electricity cylinder；
122-hinge cuts with scissors；130-ball pivot assembly；131-ball pivot body；132-ball pivot fixes seat；140-electricity cylinder is oblique
Support member；150-force transducer；200-rear overhang pallet；210-fixed frame；220-fixed plate；230-
Elevator；240-shifted laterally bearing.
Detailed description of the invention
Below in conjunction with the accompanying drawings, embodiments more of the present utility model are elaborated.Do not conflict
In the case of, the feature in following embodiment and embodiment can be mutually combined.
Fig. 1 is the structural representation of front overhang pallet in this utility model body in white bending stiffness test platform；Please
With reference to Fig. 1, the present embodiment provides a kind of body in white bending stiffness test platform, including: front overhang pallet 100,
Retrain for dialogue body structure；Front overhang pallet 100 includes: rack base 110, rack base
The two ends of 110 are provided with two electric cylinders 120, and electricity cylinder 120 is for body in white imposed load；On electricity cylinder 120
Being provided with ball pivot assembly 130, ball pivot assembly 130 is for being connected with body in white；One of them electricity cylinder 120
It is connected with rack base 110 also by electricity cylinder bearing diagonal part 140.
Specifically, rack base 110 can be installed on work top rigidly in del,
To support electricity cylinder 120, work top can be cement flooring, floor or test table top etc..Need
Illustrate: electricity cylinder 120 can move along the length direction of rack base 110, to adapt to different size
Body in white, and can by the locking piece such as bolt, screw locking electricity cylinder 120 along rack base 110
The motion of length direction；Electricity cylinder 120 is arranged in rack base 110 the most in articulated manner, so that
Electricity cylinder 120 can rotate around rack base 110, to guarantee corresponding constraint requirements to greatest extent, real
Now body in white is carried out the purpose of bending rigidity test.
The side at electric cylinder 120 place being connected with rack base 110 by electricity cylinder bearing diagonal part 140 is base
By electricity cylinder bearing diagonal part 140, quasi-side, ensures that this electricity cylinder 120 cannot be along the length side of rack base 110
To translation.Wherein, the length of electricity cylinder bearing diagonal part 140 can regulate.
Body in white bending stiffness test platform also includes rear overhang pallet, and rear overhang pallet is for the rear end to body in white
Retrain；Rear overhang pallet may include that the supporting part being installed in rigidly on work top, supports
Portion is provided with ball pivot assembly 130, to be supported body in white by ball pivot assembly 130；Wherein, prop up
Support part can also carry out altitude mixture control with height adjustment needs during adaptive testing, such as: supporting part is permissible
Employing screw nut device realizes, in order to adjust the height of body in white rear end promptly.
The body in white bending stiffness test platform that the present embodiment provides, by arranging two in rack base 110
Individual electricity cylinder 120, arranges ball pivot assembly 130 on electricity cylinder 120, and is connected with body in white by ball pivot, at electricity
When cylinder 120 provides bending power to body in white, the power of electricity cylinder 120 output transmits through ball pivot assembly 130
To body in white, to realize the purpose to body in white imposed load；When body in white is left-right asymmetry,
By two electric cylinders 120 to body in white imposed load, it is possible to realize the power direction equal in magnitude phase of application point
Anti-power controls, and the requirement with Computer Aided Function CAE is consistent, to measure the body in white left and right sides not
With the deformation of degree, it is effectively improved the accuracy of body in white bending stiffness excitations.
In each of the embodiments described below, for the ease of describing, with the length direction of rack base 110 as y-axis,
With the rigidity direction of rack base 110 as z-axis, with the width of step base as x-axis, set up and sit
Mark system.
Fig. 2 is the close-up schematic view of Fig. 1；Refer to Fig. 2, further, ball pivot assembly 130
Including: ball pivot body 131 and ball pivot fix seat 132, and ball pivot is fixed seat 132 and is connected with electricity cylinder 120；
Ball pivot is fixed seat 132 and is provided with force transducer 150, so that force transducer 150 is by ball pivot assembly 130
It is connected with body in white so that force transducer 150 is relatively near apart from application point, decreases middle force transferring part,
Accuracy of detection can be effectively improved.
Wherein, ball pivot is fixed and is offered slotted hole on seat 132, and the length direction of slotted hole is perpendicular to stand
The length direction of base 110 and be perpendicular to ball pivot and fix the short transverse of seat 132, ball pivot body 131 energy
Enough length directions along slotted hole and width translation.
In the present embodiment, the size of the length direction of slotted hole and the size of width are all higher than ball pivot originally
The size of body 131 so that ball pivot body 131 can in the x-direction with y direction translational；Wherein, in peace
The dress stage, can by locating part such as pin limit ball pivot body 131 along y to movement, at dialogue
Vehicle body carries out some that test, release ball pivot body 131 along y to movement；Arrow indication in Fig. 2
The direction shown is the transportable direction of ball pivot body 131.
Further, the two ends at the top of rack base 110 set electricity cylinder respectively and fix seat 121；Electricity cylinder is solid
Reservation 121 is provided with electricity cylinder 120.
Specifically, electricity cylinder fixes seat 121 in column, and electricity cylinder is fixed the top of seat 121 and is provided with support platform,
Electricity cylinder 120 is fixed in support platform；Seat 121 fixed by electricity cylinder can be along y to movement, to regulate two
The distance between seat 121 fixed by electricity cylinder, thus adapts to various sizes of body in white.
Further, rack base 110 includes: rotary stand 111, and the top of rotary stand 111 sets
Electric cylinder is had to fix seat 121；The bottom of rotary stand 111 is provided with stand and supports seat 112, and stand supports seat
112 are used for supporting rotary stand 111.
In the present embodiment, the middle part of rotary stand 111 is supported seat 112 with stand and is connected by bearing pin 113,
So that the longeron of the left and right sides adjusting body in white is in level, then can each at body in white
Point layout displacement transducer.Being respectively arranged at two ends with of the bottom of rotary stand 111 regulates support bar 114,
Regulation support bar 114 is elevating mechanism, for rotary stand 111 is carried out leveling.
Further, electricity cylinder is fixed seat 121 and is connected with rotary stand 111 by hinge hinge 122, to protect
Card vehicle body select node in x direction can translation, reduce Planar Mechanisms, reduce error.
Further, the two ends of rotary stand 111 further respectively have loading connecting rod 115, load and connect
Bar 115 is for being connected with outside charger, to execute body in white by rotating this rotary stand 111
Add load.
In the present embodiment, it is also possible to by outside charger to rotary stand 111 imposed load, enter
And to body in white imposed load, now, electricity cylinder 120 not imposed load, only plays interconnection function；Passing through
When outside charger is to rotary stand 111 imposed load, rotary stand 111 rotates, and then
Drive body in white bending, wherein, on the premise of the deformation ignoring rotary stand 111, about body in white
The displacement of the junction point of both sides is consistent, belongs to Bit andits control.By rotary stand 111, body in white is applied
Load, and carry out Data Comparison, effectively utilize the empirical data during early development.
Fig. 3 is the structural representation of this utility model body in white bending stiffness test platform；Refer to Fig. 3,
Further, body in white bending stiffness test platform, also include: rear overhang stand 200, for body in white
Rear end retrains；Rear overhang stand 200 includes: fixed frame 210, and fixed frame 210 is provided with solid
Determine plate 220, fixed plate 220 be respectively arranged at two ends with shifted laterally bearing 240, shifted laterally bearing 240
Being provided with elevator 230, elevator 230 is provided with ball pivot assembly 130, ball pivot assembly 130 for in vain
Vehicle body connects.
Specifically, fixed frame 210 can be in del, and fixed frame 210 deviates from fixed plate 220
One end be provided with gripper shoe, gripper shoe is installed on work top rigidly；Shifted laterally bearing 240
Can move along the length direction of fixed plate 220, in order to be suitable for various sizes of body in white, and arrive
After reaching precalculated position, locked by locking piece；Elevator 230 is hand-worked lift, in order to regulation is white
The height of body rear end.
The detection process of the body in white bending stiffness test platform that employing the present embodiment provides can be:
By regulation support bar 114, rotary stand 111 is adjusted to horizontal level；
Measure the size of mount point of body in white, then according on size adjusting rotary stand 111 and
The position of the ball pivot assembly 130 that electricity cylinder bearing diagonal part 140 connects；
It is connected body in white with suspension point connecting plate by ball pivot assembly 130；
Fix seat 121 or right side upper electricity cylinder according to the electric cylinder in left side and fix (Fig. 3 on the basis of seat 121
In be by right side on the basis of), fine setting body in white fore-and-aft plane (the most perpendicular to the ground), further through bearing pin
113, the longeron of the left and right sides adjusting body in white is also at horizontal level, and then at body in white, each is surveyed
Point cloth displacement sensor；
Whole body in white suspension point selects a reference point, i.e. this point only to rotate, and limits translation, its
He at 3 suspension point all there is certain translational degree of freedom, this ensures that body in white will not increase because of Planar Mechanisms
Add rigidity；Y is all retrained to translation (as y to reference according to the right side fore suspension and rear suspension point shown in Fig. 3
Benchmark), retrain right rear-suspending x simultaneously, z is to translation, and retrains left rear suspension point x to translation (work
For x to basis reference), left front suspension point is not intended to degree of freedom；By electricity cylinder at left and right front-suspension point
Apply z in opposite direction equal in magnitude to load.
Calculate angle by the displacement data gathered thus obtain torsional rigidity.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, and
Non-to its restriction；Although this utility model being described in detail with reference to foregoing embodiments, ability
The those of ordinary skill in territory is it is understood that it still can be to the technical scheme described in foregoing embodiments
Modify, or the most some or all of technical characteristic is carried out equivalent；And these amendment or
Person replaces, and does not make the essence of appropriate technical solution depart from the model of this utility model each embodiment technical scheme
Enclose.
Claims (9)
1. a body in white bending stiffness test platform, it is characterised in that including: front overhang pallet, retrain for dialogue body structure；Described front overhang pallet includes: rack base, and the two ends of described rack base are provided with two electric cylinders, and described electricity cylinder is for how described body in white imposed load；Being provided with ball pivot assembly on described electricity cylinder, described ball pivot assembly is for being connected with described body in white；One of them described electricity cylinder is connected with described rack base also by electricity cylinder bearing diagonal part.
Body in white bending stiffness test platform the most according to claim 1, it is characterised in that described ball pivot assembly includes: ball pivot body and ball pivot fix seat, described ball pivot is fixed seat and is connected with described electricity cylinder；Described ball pivot is fixed seat and is provided with force transducer, so that described force transducer is connected with described body in white by described ball pivot assembly.
Body in white bending stiffness test platform the most according to claim 2, it is characterized in that, described ball pivot is fixed and is offered slotted hole on seat, the length direction of described slotted hole is perpendicular to the length direction of described rack base and is perpendicular to described ball pivot and fixes the short transverse of seat, and described ball pivot body can be along the length direction of described slotted hole and width translation.
Body in white bending stiffness test platform the most according to claim 1, it is characterised in that the two ends at the top of described rack base set electricity cylinder respectively and fix seat；Described electricity cylinder is fixed seat and is provided with described electricity cylinder.
Body in white bending stiffness test platform the most according to claim 4, it is characterised in that described rack base includes: rotary stand, the top of described rotary stand is provided with described electricity cylinder and fixes seat；The bottom of described rotary stand is provided with stand and supports seat, and described stand supports seat and is used for supporting described rotary stand.
Body in white bending stiffness test platform the most according to claim 5, it is characterised in that the middle part of described rotary stand is supported seat with described stand and is connected by bearing pin；The bottom of described rotary stand be respectively arranged at two ends with regulation support bar, described regulation support bar is for carrying out leveling to described rotary stand.
Body in white bending stiffness test platform the most according to claim 5, it is characterised in that described electricity cylinder is fixed seat and is connected with described rotary stand by hinge hinge.
Body in white bending stiffness test platform the most according to claim 5, it is characterized in that, the two ends of described rotary stand further respectively have loading connecting rod, and described loading connecting rod is for being connected with outside charger, with by rotating described rotary stand to body in white imposed load.
Body in white bending stiffness test platform the most according to claim 1, it is characterised in that also include: rear overhang stand, for retraining described body in white rear end；Described rear overhang stand includes: fixed frame, described fixed frame is provided with fixed plate, described fixed plate be respectively arranged at two ends with shifted laterally bearing, described shifted laterally bearing is provided with elevator, described elevator is provided with described ball pivot assembly, and described ball pivot assembly is for being connected with described body in white.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532439.3U CN205785839U (en) | 2016-06-02 | 2016-06-02 | Body in white bending stiffness test platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532439.3U CN205785839U (en) | 2016-06-02 | 2016-06-02 | Body in white bending stiffness test platform |
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| CN205785839U true CN205785839U (en) | 2016-12-07 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121248A (en) * | 2017-06-20 | 2017-09-01 | 辽宁工业大学 | A kind of equation motorcycle race chassis torsion stiffness test stand and its test method |
| CN107991196A (en) * | 2017-12-28 | 2018-05-04 | 上汽通用五菱汽车股份有限公司 | A kind of car white vehicle vehicle body joint stiffness measuring device |
| CN109855820A (en) * | 2018-12-05 | 2019-06-07 | 合肥百川自动化科技有限公司 | A kind of white body Static stiffness local stiffness testing stand |
| CN111122173A (en) * | 2018-10-31 | 2020-05-08 | 中国北方车辆研究所 | Restraint device for loading white body of cab |
| CN111707429A (en) * | 2020-06-29 | 2020-09-25 | 安徽江淮汽车集团股份有限公司 | Fixed connection device and equipment for vehicle body bending rigidity test |
| CN111855234A (en) * | 2020-09-01 | 2020-10-30 | 东风汽车集团有限公司 | Evaluation test system and method for vehicle front-end structure subsystem |
| CN112504693A (en) * | 2020-11-25 | 2021-03-16 | 东风柳州汽车有限公司 | Static rigidity test device for body-in-white structure |
| CN112525548A (en) * | 2020-11-25 | 2021-03-19 | 东风柳州汽车有限公司 | Fixture tool of white vehicle body static rigidity test bench |
| CN112903219A (en) * | 2021-01-20 | 2021-06-04 | 东风商用车有限公司 | Body-in-white rigidity test fixture |
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2016
- 2016-06-02 CN CN201620532439.3U patent/CN205785839U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121248A (en) * | 2017-06-20 | 2017-09-01 | 辽宁工业大学 | A kind of equation motorcycle race chassis torsion stiffness test stand and its test method |
| CN107121248B (en) * | 2017-06-20 | 2024-05-31 | 辽宁工业大学 | Torsional rigidity test bed for formula car frame and test method thereof |
| CN107991196A (en) * | 2017-12-28 | 2018-05-04 | 上汽通用五菱汽车股份有限公司 | A kind of car white vehicle vehicle body joint stiffness measuring device |
| CN111122173A (en) * | 2018-10-31 | 2020-05-08 | 中国北方车辆研究所 | Restraint device for loading white body of cab |
| CN109855820A (en) * | 2018-12-05 | 2019-06-07 | 合肥百川自动化科技有限公司 | A kind of white body Static stiffness local stiffness testing stand |
| CN111707429A (en) * | 2020-06-29 | 2020-09-25 | 安徽江淮汽车集团股份有限公司 | Fixed connection device and equipment for vehicle body bending rigidity test |
| CN111855234A (en) * | 2020-09-01 | 2020-10-30 | 东风汽车集团有限公司 | Evaluation test system and method for vehicle front-end structure subsystem |
| CN111855234B (en) * | 2020-09-01 | 2021-09-21 | 东风汽车集团有限公司 | Evaluation test system and method for vehicle front-end structure subsystem |
| CN112504693A (en) * | 2020-11-25 | 2021-03-16 | 东风柳州汽车有限公司 | Static rigidity test device for body-in-white structure |
| CN112525548A (en) * | 2020-11-25 | 2021-03-19 | 东风柳州汽车有限公司 | Fixture tool of white vehicle body static rigidity test bench |
| CN112525548B (en) * | 2020-11-25 | 2022-06-21 | 东风柳州汽车有限公司 | Fixture tool of white vehicle body static rigidity test bench |
| CN112903219A (en) * | 2021-01-20 | 2021-06-04 | 东风商用车有限公司 | Body-in-white rigidity test fixture |
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