CN112903219A - Body-in-white rigidity test fixture - Google Patents

Body-in-white rigidity test fixture Download PDF

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Publication number
CN112903219A
CN112903219A CN202110074200.1A CN202110074200A CN112903219A CN 112903219 A CN112903219 A CN 112903219A CN 202110074200 A CN202110074200 A CN 202110074200A CN 112903219 A CN112903219 A CN 112903219A
Authority
CN
China
Prior art keywords
adjusting
cab
plate
studs
rear suspension
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110074200.1A
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Chinese (zh)
Inventor
袁慧
杨磊
谢万春
邓华侨
刘湘华
吴梦璇
刘洪浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Commercial Vehicle Co Ltd
Original Assignee
Dongfeng Commercial Vehicle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongfeng Commercial Vehicle Co Ltd filed Critical Dongfeng Commercial Vehicle Co Ltd
Priority to CN202110074200.1A priority Critical patent/CN112903219A/en
Publication of CN112903219A publication Critical patent/CN112903219A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0041Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
    • G01M5/005Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02Assembly jigs
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles

Abstract

The invention discloses a body-in-white rigidity test fixture. The front suspension support clamp comprises two adjusting studs, locking bolts matched with the adjusting studs are arranged at the upper parts of the two adjusting studs respectively, the top of each adjusting stud is hinged with an upper plate which can be connected with a mounting point of the front suspension of the cab, and a lock pin is arranged between the upper plate and the adjusting stud; the rear overhang supporting clamp comprises a triangular supporting plate, the top of the triangular supporting plate is hinged to a rear overhang main plate, rear overhang adjusting studs are arranged at two ends of the rear overhang main plate respectively, and the top of each rear overhang adjusting stud is provided with a spherical hinge which can be movably connected with a rear overhang mounting point of a cab. According to the invention, the height can be quickly and conveniently adjusted by rotating the adjusting structure on the front suspension support clamp, and unnecessary installation gaps can be eliminated; the rear suspension is a hinged structure which can be adjusted left and right through a ball head and a straight plate.

Description

Body-in-white rigidity test fixture
Technical Field
The invention belongs to the technical field of cab assemblies, and particularly relates to a body-in-white rigidity test clamp.
Background
During a body-in-white rigidity test, the front suspension of the cab needs to be rigidly supported according to the installation mode of a real vehicle, and only the rotational freedom degree around the Y axis is reserved. At present, the height control of the front suspension of a body-in-white vehicle is realized by adjusting a square box and a base plate, the height of the base plate needs to be adjusted repeatedly according to the front-rear suspension height difference of different cabs in an actual test, and an installation gap which cannot be eliminated exists between the square box and the base plate.
At present, a gap exists in a front suspension fixing mode during a body-in-white rigidity test, and the height is inconvenient to adjust, so that the design of a height-adjustable clamp is very necessary for eliminating the front suspension mounting gap while realizing the universality of various types of cabs. And during the rigidity test, the four suspension brackets and the cab longitudinal beam are connected as fulcrums to support the vehicle body. The height difference between the front point and the rear point is the same as that of the actual vehicle.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a body-in-white rigidity test fixture.
The technical scheme adopted by the invention is as follows: a body-in-white rigidity test fixture comprises a front suspension support fixture and a rear suspension support fixture, wherein the front suspension support fixture is used for being connected with a front suspension of a cab, the rear suspension support fixture is used for being connected with a rear suspension of the cab, the front suspension support fixture comprises two adjusting studs, the horizontal distance between the two adjusting studs is adjustable, locking bolts matched with the adjusting studs are arranged at the upper parts of the two adjusting studs respectively, the tops of the adjusting studs are hinged to an upper plate which can be connected with a mounting point of the front suspension of the cab, and a lock pin is arranged between the upper plate and the adjusting studs; the rear overhang supporting clamp comprises a triangular supporting plate, the top of the triangular supporting plate is hinged to a rear overhang main plate, rear overhang adjusting studs and two horizontal intervals between the rear overhang adjusting studs are arranged at two ends of the rear overhang main plate respectively, and the top of the rear overhang adjusting stud is provided with a spherical hinge which can be movably connected with a rear overhang mounting point of a cab.
In a further preferred structure, the bottoms of the adjusting studs are slidably connected to the straight-line groove guide rail, and the distance between the two adjusting studs on the straight-line groove guide rail is adjustable.
In a further preferred structure, the bottoms of the rear suspension adjusting screw columns are respectively connected to two parallel groove guide rails in a sliding manner, and the two parallel groove guide rails are respectively fixed at two ends of the rear suspension main board.
In a further preferable structure, the upper plate comprises two triangular supports on the side surfaces, the tops of the triangular supports on the side surfaces are connected through a connecting plate, and the connecting plate is provided with a straight groove.
In a further preferred structure, the bottom of the triangular support plate is fixed on the bottom plate.
In a further preferred configuration, the linear groove guide is parallel to the parallel groove guide.
A method for assembling a body-in-white rigidity test fixture comprises the following steps: the method comprises the following steps:
(1) determining the front suspension height according to the actual height difference of the front suspension and the rear suspension, and adjusting the threads of the adjusting stud to enable the overall height of the clamp to meet the test requirement;
(2) installing the adjusting stud into a locking threaded hole of the adjusting locking bolt, locking the locking bolt by rotating the locking bolt thread, and positioning the height of the clamp;
(3) connecting and fixing the upper plate and a mounting hole at a front suspension mounting point of the cab through a bolt;
(4) and fixing two adjusting studs on the straight-line groove guide rail through four bolts, adjusting the two adjusting studs according to the actual distance of the cab longitudinal beam, then connecting and fastening the two adjusting studs, and finally integrally fixing the front suspension support clamp on the iron floor.
The steps further include:
(1) connecting two rear suspension adjusting studs to a rear suspension main board through four bolts, adjusting the distance between the two rear suspension adjusting studs to enable the distance to be as wide as the width of a cab longitudinal beam, and then screwing the bolts for positioning;
(2) adjusting the distance between the front suspension support clamp and the rear suspension support clamp to be equal to the front and rear suspension distance of the cab, and then fixing the rear suspension support clamp to the iron floor;
(3) then the cab is arranged in a falling mode, and the locking bolt and the upper plate are connected through the lock pin, so that the posture of the cab meets the test requirements finally; and meanwhile, the rear suspension adjusting stud is fixedly connected with a mounting hole at the mounting point of the rear suspension of the cab through a bolt.
In the step (2), the rear suspension support clamp is fixed to the iron floor through the bottom plate and the bolts.
The invention has the beneficial effects that: the front suspension adopts two clamps which are independent from the left and the right, the rear suspension adopts an integrated adjustable hinged clamp, and the left and the right spacing are adjusted through a straight groove guide rail; the front suspension height can be quickly adjusted by utilizing a thread mechanism.
The adjustment thread locking is realized by double threads. During a body-in-white rigidity test, the front suspension of the cab needs to be fixedly supported, only the rotational freedom degree around the Y axis is reserved, and the rear suspension is hinged and fixed. According to the invention, the height can be quickly and conveniently adjusted by rotating the adjusting structure on the front suspension support clamp, and unnecessary installation gaps can be eliminated; the rear suspension realizes a hinge structure which can be adjusted left and right through a ball head and a straight plate (rear suspension main plate). The adjusting range of the front suspension support height of the cab is 0-500mm, the adjusting range of the front suspension support width is 600-1400 mm, and the adjusting range of the rear suspension support width of the cab is 800-1400 mm. The invention is suitable for the cabs of different types of commercial vehicles.
Drawings
FIG. 1 is a schematic structural view of a cab front overhang support clamp;
FIG. 2 is a schematic structural view of a rear overhang supporting clamp of a cab;
fig. 3 is an assembly schematic of the present invention.
The cab suspension device comprises a 1-front suspension support clamp (1-1-straight groove guide rail, 1-2-adjusting stud, 1-3-locking bolt, 1-4-locking pin, 1-5-upper plate, 1-5-1-triangular bracket, 1-5-2-straight groove), a 2-rear suspension support clamp (2-1-bottom plate, 2-2-triangular support plate, 2-3-rear suspension main plate, 2-4-parallel groove guide rail, 2-5-rear suspension adjusting stud, 2-6-spherical hinge), a 3-cab front suspension mounting point and a 4-cab rear suspension mounting point.
Detailed Description
The invention will be further described in detail with reference to the following drawings and specific examples, which are not intended to limit the invention, but are for clear understanding.
As shown in fig. 1-3, the invention comprises a front suspension support clamp 1 for connecting with a front suspension of a cab and a rear suspension support clamp 2 for connecting with a rear suspension of the cab, wherein the front suspension support clamp 1 comprises two adjusting studs 1-2, the horizontal distance between the two adjusting studs 1-2 is adjustable, locking bolts 1-3 matched with the adjusting studs 1-2 are respectively arranged at the upper parts of the two adjusting studs 1-2, the top parts of the adjusting studs 1-2 are hinged with upper plates 1-5 which can be connected with a mounting point 3 of the front suspension of the cab, and locking pins 1-4 are arranged between the upper plates 1-5 and the adjusting studs 1-2; the rear overhang supporting clamp 2 comprises a triangular supporting plate 2-2, the top of the triangular supporting plate 2-2 is hinged with a rear overhang main plate 2-3, rear overhang adjusting studs 2-5 are respectively arranged at two ends of the rear overhang main plate 2-3, the horizontal distance between the two rear overhang adjusting studs 2-5 is adjustable, and a spherical hinge 2-6 which can be movably connected with a rear overhang mounting point 4 of a cab is arranged at the top of each rear overhang adjusting stud 2-5.
The bottom of the adjusting stud 1-2 is connected to the straight-line groove guide rail 1-1 in a sliding mode, and the distance between the two adjusting studs 1-2 on the straight-line groove guide rail 1-1 is adjustable.
The bottoms of the two rear suspension adjusting studs 2-5 are respectively connected to the two parallel groove guide rails 2-4 in a sliding manner, and the two parallel groove guide rails 2-4 are respectively fixed at two ends of the rear suspension main board 2-3.
The upper plate 1-5 comprises two triangular supports 1-5-1 on the side surfaces, the tops of the triangular supports 1-5-1 on the side surfaces are connected through a connecting plate, and the connecting plate is provided with a straight groove 1-5-2.
The bottom of the triangular supporting plate 2-2 is fixed on the bottom plate 2-1.
The straight-groove guide rail 1-1 is parallel to the parallel-groove guide rail 2-4.
The assembly process of the invention:
before a body-in-white rigidity test, the front suspension height is determined according to the actual height difference of the front suspension and the rear suspension, and the threads of the adjusting studs 1-2 are adjusted, so that the overall height of the clamp meets the test requirements.
And then the adjusting stud 1-2 is arranged in a locking threaded hole of the adjusting locking bolt 1-3, the locking bolt 1-3 is locked by rotating the thread of the locking bolt 1-3, and the height of the clamp is positioned.
The upper plates 1-5 are fixedly connected with mounting holes at a front suspension mounting point 3 of the cab through bolts.
Then fixing two adjusting studs 1-2 on the straight-line groove guide rail 1-1 through four bolts, adjusting the actual distance of the cab longitudinal beam, then connecting and fastening, and finally integrally fixing the front suspension support clamp 1 on the iron floor.
Two rear suspension adjusting studs 2-5 are connected to a rear suspension main board 2-3 through four bolts, the distance between the two rear suspension adjusting studs 2-5 is adjusted to be equal to the width of a cab longitudinal beam, and then the bolts are screwed for positioning.
The distance between the front suspension support clamp 1 and the rear suspension support clamp 2 is adjusted to be equal to the distance between the front suspension support clamp and the rear suspension support clamp of the cab, and then the rear suspension support clamp 2 is fixed on the iron floor.
Then the cab is dropped and installed, and the locking bolts 1-3 and the upper plate 1-5 are connected through the lock pins 1-4, so that the posture of the cab meets the test requirements finally. And meanwhile, the rear suspension adjusting studs 2-5 are fixedly connected with mounting holes at the rear suspension mounting point 4 of the cab through bolts.
During bending rigidity test, a front pivot bolt of a cab is connected with a rigid clamp for fixing, only the rotational freedom degree around the Y axis is reserved, and the connection between a rear pivot and a vehicle body adopts a universal hinge mode, so that when the vehicle body deforms under stress, all parts can be consistent with the actual deformation condition, and test load is vertically added downwards at the centers of a driver seat and a passenger seat support.
During torsional rigidity testing, the front suspension test fixture is connected to the front suspension mounting hole of the body-in-white through a bolt, then the front suspension test fixture is connected with the square base box through a bolt, and finally the square base box is fixed on the iron floor. The supporting mode is fixed supporting, and the constraint can limit the translational freedom degree of the white front suspension of the vehicle body and only keep the rotational freedom degree around the Y axis during the test. The rear suspension test fixture is connected to a spherical hinge of the torsion lever through a bolt, and finally the rear suspension test fixture is connected with the white vehicle body rear suspension mounting hole through a bolt. The supporting mode is hinged supporting, and the constraint can limit the translational freedom degree of the white rear suspension of the vehicle body during testing, but does not limit the rotational freedom degree.
Those not described in detail in this specification are within the skill of the art.

Claims (9)

1. The utility model provides a body in white rigidity test anchor clamps, includes front overhang support anchor clamps (1) that are used for being connected with driver's cabin front overhang and is used for rear overhang support anchor clamps (2) that are connected with driver's cabin rear overhang, its characterized in that: the front suspension support clamp (1) comprises two adjusting studs (1-2), the horizontal distance between the two adjusting studs (1-2) is adjustable, locking bolts (1-3) matched with the adjusting studs are respectively arranged at the upper parts of the two adjusting studs (1-2), the top of each adjusting stud (1-2) is hinged with an upper plate (1-5) which can be connected with a front suspension mounting point (3) of a cab, and a lock pin (1-4) is arranged between each upper plate (1-5) and each adjusting stud (1-2); the rear overhang supporting clamp (2) comprises a triangular supporting plate (2-2), the top of the triangular supporting plate (2-2) is hinged to a rear overhang main plate (2-3), rear overhang adjusting studs (2-5) are arranged at two ends of the rear overhang main plate (2-3) respectively, the horizontal distance between the rear overhang adjusting studs (2-5) is adjustable, and a spherical hinge (2-6) which can be movably connected with a rear overhang mounting point (4) of a cab is arranged at the top of each rear overhang adjusting stud (2-5).
2. The body-in-white rigidity test jig as set forth in claim 1, wherein: the bottom of each adjusting stud (1-2) is connected to the straight-line groove guide rail (1-1) in a sliding mode, and the distance between the two adjusting studs (1-2) on the straight-line groove guide rails (1-1) is adjustable.
3. The body-in-white rigidity test jig as set forth in claim 2, characterized in that: the bottoms of the two rear suspension adjusting studs (2-5) are respectively connected to the two parallel groove guide rails (2-4) in a sliding manner, and the two parallel groove guide rails (2-4) are respectively fixed at two ends of the rear suspension main board (2-3).
4. The body-in-white rigidity test jig as set forth in claim 1, wherein: the upper plate (1-5) comprises two triangular supports (1-5-1) on the side surfaces, the tops of the triangular supports (1-5-1) on the side surfaces are connected through a connecting plate, and the connecting plate is provided with a straight groove (1-5-2).
5. The body-in-white rigidity test jig as set forth in claim 1, wherein: the bottom of the triangular supporting plate (2-2) is fixed on the bottom plate (2-1).
6. The body-in-white rigidity test jig as set forth in claim 3, characterized in that: the straight groove guide rail (1-1) is parallel to the parallel groove guide rail (2-4).
7. The assembling method of the body-in-white rigidity test jig according to claim 1, characterized in that: the method comprises the following steps:
(1) determining the front suspension height according to the actual height difference of the front suspension and the rear suspension, and adjusting the threads of the adjusting studs (1-2) to enable the overall height of the clamp to meet the test requirement;
(2) installing the adjusting stud (1-2) into a locking threaded hole of the adjusting locking bolt (1-3), locking the locking bolt (1-3) by rotating the thread of the locking bolt (1-3), and positioning the height of the clamp;
(3) the upper plate (1-5) is fixedly connected with a mounting hole at a front suspension mounting point (3) of the cab through a bolt;
(4) two adjusting studs (1-2) are fixed on the straight groove guide rail (1-1) through four bolts, are adjusted according to the actual distance of the cab longitudinal beam and then are connected and fastened, and finally the front suspension support clamp (1) is integrally fixed on the iron floor.
8. The assembling method of the body-in-white rigidity test jig according to claim 7, characterized in that: the steps further include:
(1) connecting two rear suspension adjusting studs (2-5) to a rear suspension main board (2-3) through four bolts, adjusting the distance between the two rear suspension adjusting studs (2-5) to enable the distance to be equal to the width of a cab longitudinal beam, and then screwing the bolts for positioning;
(2) adjusting the distance between the front suspension support clamp (1) and the rear suspension support clamp (2) to be equal to the front-rear suspension distance of the cab, and then fixing the rear suspension support clamp (2) to the iron floor;
(3) then the cab is dropped and installed, and the locking bolt (1-3) and the upper plate (1-5) are connected through the lock pin (1-4) to finally enable the attitude of the cab to meet the test requirement; and meanwhile, the rear suspension adjusting studs (2-5) are fixedly connected with mounting holes at a rear suspension mounting point (4) of the cab through bolts.
9. The assembling method of the body-in-white rigidity test jig according to claim 8, characterized in that: in the step (2), the rear suspension support clamp (2) is fixed on the iron floor through the bottom plate (2-1) and the bolts.
CN202110074200.1A 2021-01-20 2021-01-20 Body-in-white rigidity test fixture Pending CN112903219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110074200.1A CN112903219A (en) 2021-01-20 2021-01-20 Body-in-white rigidity test fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110074200.1A CN112903219A (en) 2021-01-20 2021-01-20 Body-in-white rigidity test fixture

Publications (1)

Publication Number Publication Date
CN112903219A true CN112903219A (en) 2021-06-04

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ID=76116471

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110074200.1A Pending CN112903219A (en) 2021-01-20 2021-01-20 Body-in-white rigidity test fixture

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Country Link
CN (1) CN112903219A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201229239Y (en) * 2008-03-21 2009-04-29 中国第一汽车集团公司 Liftable rigid support for hardness test
CN102944431A (en) * 2012-11-30 2013-02-27 北京汽车股份有限公司 Body-in-white torsional fatigue testing system and method thereof
CN103162969A (en) * 2013-02-18 2013-06-19 湖南湖大艾盛汽车技术开发有限公司 Finished automobile rigidity experiment bench and clamping method of experiment bench
CN104344936A (en) * 2013-07-29 2015-02-11 北汽福田汽车股份有限公司 Vehicle body rigidity testing apparatus
CN204422213U (en) * 2015-01-16 2015-06-24 同济大学 A kind of testing table for auto Model Test
CN205506408U (en) * 2016-02-01 2016-08-24 北汽银翔汽车有限公司 White quiet rigidity postdetection suspension restraint device of automobile body
CN205785839U (en) * 2016-06-02 2016-12-07 北京汽车股份有限公司 Body in white bending stiffness test platform
KR101965649B1 (en) * 2017-12-22 2019-04-10 (주)호원 Torsional analysis method for vehicle body part module
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
CN111999017A (en) * 2019-05-07 2020-11-27 东风汽车集团有限公司 Vehicle body rigidity test system and method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201229239Y (en) * 2008-03-21 2009-04-29 中国第一汽车集团公司 Liftable rigid support for hardness test
CN102944431A (en) * 2012-11-30 2013-02-27 北京汽车股份有限公司 Body-in-white torsional fatigue testing system and method thereof
CN103162969A (en) * 2013-02-18 2013-06-19 湖南湖大艾盛汽车技术开发有限公司 Finished automobile rigidity experiment bench and clamping method of experiment bench
CN104344936A (en) * 2013-07-29 2015-02-11 北汽福田汽车股份有限公司 Vehicle body rigidity testing apparatus
CN204422213U (en) * 2015-01-16 2015-06-24 同济大学 A kind of testing table for auto Model Test
CN205506408U (en) * 2016-02-01 2016-08-24 北汽银翔汽车有限公司 White quiet rigidity postdetection suspension restraint device of automobile body
CN205785839U (en) * 2016-06-02 2016-12-07 北京汽车股份有限公司 Body in white bending stiffness test platform
KR101965649B1 (en) * 2017-12-22 2019-04-10 (주)호원 Torsional analysis method for vehicle body part module
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
CN111999017A (en) * 2019-05-07 2020-11-27 东风汽车集团有限公司 Vehicle body rigidity test system and method

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Application publication date: 20210604

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