CN103612226A - Auxiliary frame double-shaft testing clamp device - Google Patents
Auxiliary frame double-shaft testing clamp device Download PDFInfo
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- CN103612226A CN103612226A CN201310596095.3A CN201310596095A CN103612226A CN 103612226 A CN103612226 A CN 103612226A CN 201310596095 A CN201310596095 A CN 201310596095A CN 103612226 A CN103612226 A CN 103612226A
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- axis
- rigid arm
- subframe
- parallel
- grip device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an auxiliary frame double-shaft testing clamp device and belongs to the field of automobile testing clamps. The clamp device at least comprises a clamp body, a control arm ball pin, two-force rods and hydraulic cylinders. The clamp body is formed by two rigid arms which form a right angle. The control arm ball pin is mounted at the right angle. Two two-force rods are mounted in the middle of each of the two rigid arms. One hydraulic cylinder is mounted at the end of each of the two rigid arms. The two hydraulic cylinders is allowed to act on the auxiliary frame at the same time, mutual influence of the two hydraulic cylinders during double-shaft loading is avoided, the two hydraulic cylinders are mutually independent during loading, precision of indoor tests of the whole auxiliary frame is increased, testing results is good, error is small, and loss of the force transmitted by the hydraulic cylinder to the auxiliary frame is minimized.
Description
Technical field
The present invention relates to automobile test fixture field, particularly a kind of subframe twin shaft load test grip device.
Background technology
Hydraulic cylinder is a kind of loading force device, in many industries of space flight, national defence and national economy, has application.In automotive field, have a very wide range of applications especially, mainly comprise structure demarcation, chassis and body structure verification experimental verification etc., can provide normal width and random spectrum to load.Common load test is all generally, hydraulic cylinder charger works alone, between different hydraulic cylinders, do not exist and influence each other, such as torsion beam load test, stabiliser bar load test, four column load tests etc., between hydraulic cylinder, be separate, between hydraulic cylinder, can there is not coupled relation, this loading of test of simplifying for major part generally can satisfy condition, but certain structures can be subject to affect in different directions power at same point, for example fore sub frame test, when automobile on the way travels, subframe can bear wheel and transmit six direction load, between load, intercouple, in order to reflect well road examination stress, in bench test loading procedure, need to consider that multiaxis loads.In process of the test, load(ing) point generally is control arm ball stud place, and subframe Fx, Fy, Fz, Tx, Ty, Tz six direction load in road examination process all have certain influence, but affected by Fx, Fy both direction load, in process of the test, also at least to apply so two hydraulic cylinders and load simultaneously, so just can better reflect the actual forced status of this structure when road traveling.
In realizing process of the present invention, inventor finds that prior art at least exists following problem:
If subframe is directly loaded into two hydraulic cylinders on control arm ball stud in process of the test, as shown in Figure 1, on the one hand total is unstable, swings very obviously, is easy to damage charger.Owing to influencing each other between two hydraulic cylinders, both direction load is coupled and influences each other on the other hand, and the decay of power is very serious, can not be by actual load to control arm ball stud place, and such result of the test error is larger.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of subframe twin shaft load test grip device.Two hydraulic cylinders are acted on auxiliary frame structure simultaneously, and guarantee test precision, reduces test error; By twin shaft, load fixture and more reasonably try stress in equivalent actual road in laboratory test, meet subframe verification experimental verification process.Described technical scheme is as follows:
A subframe twin shaft load test grip device, this grip device at least comprises: jig main body, control arm ball stud, two power bars, hydraulic cylinder; Described jig main body consists of rectangular two rigid arm, and place, right angle is provided with control arm ball stud, and the middle part of described two rigid arm is respectively provided with two two power bars, and end is respectively provided with a hydraulic cylinder.
Particularly, two rigid arm of described jig main body are vertical opening along X-axis, Y direction, in the right angle intersection of X-axis rigid arm and Y-axis rigid arm, extend control arm mounting head, are provided with longitudinal hole and horizontal through hole on it.
Particularly, the middle part bilateral symmetry of described X-axis rigid arm is provided with the interior outer lug boss parallel with Y-axis rigid arm, wherein the end face of inner side boss is provided with the X-axis inner bolt hole parallel with Y-axis, by two power bars in bolt-connection X-axis, the end face of outside boss is provided with the outer screw of the X-axis parallel with Y-axis, by the outer two power bars of bolt-connection X-axis.
Particularly, the elongated end of described X-axis rigid arm is symmetrically arranged with the interior external end head parallel with Y-axis rigid arm, is provided with the X-axis inner via hole parallel with X-axis, X-axis accessibke porosity, for X-axis hydraulic cylinder is installed on described interior external end head.
Particularly, the middle part bilateral symmetry of described Y-axis rigid arm is provided with the interior outer lug boss parallel with X-axis rigid arm, wherein the end face of inner side boss is provided with the Y-axis inner bolt hole parallel with X-axis, by two power bars in bolt-connection Y-axis, the end face of outside boss is provided with the outer screw of the Y-axis parallel with X-axis, by the outer two power bars of bolt-connection Y-axis.
Particularly, the elongated end of described Y-axis rigid arm is symmetrically arranged with the interior external end head parallel with X-axis rigid arm, is provided with the Y-axis inner via hole parallel with Y-axis, Y-axis accessibke porosity, for Y-axis hydraulic cylinder is installed on described interior external end head.
Further, described X-axis hydraulic cylinder and the self-movement of Y-axis hydraulic cylinder both direction are loaded into the load of both direction on auxiliary frame structure simultaneously.
Particularly, in the longitudinal hole of the control arm mounting head of described X-axis rigid arm YuYZhou rigid arm intersection, control arm ball stud is installed, bar portion end is fixed with nut screwing clamping; Another bolt penetrates in horizontal through hole, and fastening nut is control arm ball stud connect control arm fixedly.
Particularly, the upper/lower terminal of described two power bars is all provided with ball pivot, upper end ball pivot jockey main body, and lower end ball pivot connects the fixedly six direction free degree of extraneous point.
Further, described two power bars refer to that gravity disregards in situation, are only subject to two power and rod member in balance, and the power at two power bar 3 two ends is only along the direction of rod member two ends line.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By main body fixture and four two power bars formation twin shafts loading fixtures are set, make two hydraulic cylinders act on auxiliary frame structure simultaneously, while avoiding twin shaft to load, two hydraulic cylinders interact, two hydraulic cylinders are loaded independent mutually, can guarantee test precision, reduce test error, obtain reliable result of the test.
By twin shaft, load fixture and more reasonably try stress in equivalent actual road in laboratory test, meet subframe verification experimental verification process, promote the precision of whole subframe laboratory test, through verification experimental verification, result of the test is better, error is less, and the power value loss that hydraulic cylinder can be delivered to subframe drops to minimum.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is loaded into the structure diagram on control arm ball stud by two hydraulic cylinders in prior art;
Fig. 2 is the subframe twin shaft load test grip device overall structure sketch that the embodiment of the present invention provides;
Fig. 3 is the jig main body structural representation of the subframe twin shaft load test grip device that provides of the embodiment of the present invention;
Fig. 4 is the control arm ball stud structure diagram of the subframe twin shaft load test grip device that provides of the embodiment of the present invention;
Fig. 5 is two power bar structure diagrams of the subframe twin shaft load test grip device that provides of the embodiment of the present invention.
In figure, each symbol represents that implication is as follows:
1 jig main body,
1-1 longitudinal hole, 1-2 horizontal through hole, 1-3X axle inner bolt hole, the outer screw of 1-4X axle, 1-5X axle inner via hole, 1-6X axle accessibke porosity, 1-7Y axle inner bolt hole, the outer screw of 1-8Y axle, 1-9Y axle inner via hole, 1-10Y axle accessibke porosity;
2 control arm ball studs;
3 two power bars,
Two power bars in 3-1X axle, the outer two power bars of 3-2X axle, two power bars in 3-3Y axle, the outer two power bars of 3-4Y axle;
4 hydraulic cylinders,
4-1X axle hydraulic cylinder, 4-2Y axle hydraulic cylinder;
5 control arms.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Shown in Figure 2, the embodiment of the present invention provides a kind of subframe twin shaft load test grip device, and this grip device at least comprises: the parts such as jig main body 1, control arm ball stud 2, two power bars 3, hydraulic cylinder 4; Particularly, as preferably, described jig main body 1 consists of rectangular two rigid arm, and place, right angle is provided with the control arm ball stud 2 that connects control arm 5, two two power bars 3 are respectively installed at the middle part of two rigid arm, in the end of two rigid arm, a hydraulic cylinder 4 are respectively installed.Form thus twin shaft load test fixture, guarantee that two hydraulic cylinders are unaffected mutually, the load of both direction can be loaded on auxiliary frame structure simultaneously, obtain reliable result of the test.
Shown in Figure 3, particularly, described jig main body 1 is one to be had along coordinate system X-axis, Y direction and is the square overall structure that the X-axis rigid arm of vertical opening and Y-axis rigid arm form, control arm mounting head is extended by right angle intersection in X-axis rigid arm and Y-axis rigid arm, on it, be provided with the longitudinal hole 1-1 along Z-direction, and the horizontal through hole 1-2 vertical with longitudinal hole 1-1, for control arm ball stud 2 is installed.
The middle part bilateral symmetry of described X-axis rigid arm is provided with the interior outer lug boss parallel with Y-axis rigid arm, wherein the end face of inner side boss is provided with the X-axis inner bolt hole 1-3 parallel with Y-axis, the end face of outside boss is provided with the outer screw 1-4 of the X-axis parallel with Y-axis, and described inner bolt hole 1-3 and outer screw 1-4 are for connecting respectively two power bar 3-1 and the outer two power bar 3-2 of X-axis fastening in X-axis by bolt thread; The elongated end of described X-axis rigid arm is symmetrically arranged with the interior external end head parallel with Y-axis rigid arm, rectangular shape, wherein on termination, inner side, be provided with the X-axis inner via hole 1-5 parallel with X-axis, on termination, outside, be provided with the X-axis accessibke porosity 1-6 parallel with X-axis, for X-axis hydraulic cylinder 4-1 is installed.
In like manner, the middle part bilateral symmetry of described Y-axis rigid arm is provided with the interior outer lug boss parallel with X-axis rigid arm, wherein the end face of inner side boss is provided with the Y-axis inner bolt hole 1-7 parallel with X-axis, the end face of outside boss is provided with the outer screw 1-8 of the Y-axis parallel with X-axis, and described inner bolt hole 1-7 and outer screw 1-8 are for connecting two power bar 3-3 and the outer two power bar 3-4 of Y-axis fastening in Y-axis by bolt thread; The elongated end of described Y-axis rigid arm is symmetrically arranged with the interior external end head parallel with X-axis rigid arm, rectangular shape, wherein on termination, inner side, be provided with the Y-axis inner via hole 1-9 parallel with Y-axis, on termination, outside, be provided with the Y-axis accessibke porosity 1-10 parallel with Y-axis, for Y-axis hydraulic cylinder 4-2 is installed.
When X-axis hydraulic cylinder 4-1 and Y-axis hydraulic cylinder 4-2 are installed, bolt is penetrated respectively to fastening nut in the inside and outside through hole 1-5 of X-axis, 1-6 and the inside and outside through hole 1-9 of Y-axis, 1-10 to be fixed, must guarantee hydraulic cylinder 4 and fixture six direction Fx, Fy, Fz, Tx, Ty, Tz free degree Complete Bind simultaneously, through actual verification, this way of restraint can avoid producing the large swing of whole loading system.When loading along X-axis, Y direction, the X-axis hydraulic cylinder 4-1 of both direction and Y-axis hydraulic cylinder 4-2 are equivalent to self-movement, mutually, coupling is very little, because hydraulic cylinder 4 is connected and has played certain supporting role with jig main body 1 rigid arm, so what overall structure can be very stable moves along X-axis, Y-axis both direction, the load of both direction is loaded on auxiliary frame structure simultaneously, and no matter loading the still normal width load of random spectrum all can well guarantee test precision.
Simultaneously shown in Figure 4, described control arm ball stud 2 is prior art, comprise bar portion and ball head, during assembling, the bar portion of control arm ball stud 2 is penetrated in the longitudinal hole 1-1 of X-axis rigid arm YuYZhou rigid arm intersection control arm mounting head, ball head is against on jig main body 1, and bar portion end is fixed with nut screwing clamping; Stability in order to guarantee to install penetrates in horizontal through hole 1-2 with another bolt simultaneously, and fastening nut is control arm ball stud 2 connect control arm 5 fixedly.
Simultaneously shown in Figure 5, described two power bars 3 are prior art, comprise bar portion and ball pivot portion, and the upper/lower terminal of two power bars 3 is all provided with ball pivot, upper end ball pivot is in order to jockey main body 1, and lower end ball pivot is in order to connect as required the fixedly six direction free degree of extraneous point.
The operation principle of the embodiment of the present invention: general rod member both can occur to stretch or compressive deformation, also can bend or torsional deformation, bar stressed not necessarily along the direction of bar.So-called two power bars 3 refer to that gravity disregards in situation, are only subject to two power and rod member in balance, and the power at two power bar 3 two ends must be along the direction of bar two ends line, otherwise bar can not balance.Adopt two power bars 3 as the support of whole test fixture device, can not make fixture produce reaction force, because two power bar 3 two ends all adopt spherical hinge structure, ball pivot only can retrain the translational degree of freedom of three directions, can not retrain rotational freedom, and hydraulic cylinder 4 itself when afterburning direction fix, in a plane, load, therefore as long as guarantee that rotary freedom is decontroled, can guarantee can not produce additional reaction force.If do not have two power bars 3 to support, along with loading procedure carries out, the direction of hydraulic cylinder 4 can change so, two power bars 3 supports is set as can be seen here and can reduces test error.
In addition, the embodiment of the present invention also has advantages of, it is stable that twin shaft loads fixture movement locus, guarantees that hydraulic cylinder can not tilt to cause cylinder body to damage in loading procedure.Simple in structure, easy to use, cost is lower, is easy to produce and assembling, makes indoor twin shaft test become feasible, strong for the structural test applicability that affected by two height bonding forces.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a subframe twin shaft load test grip device, is characterized in that, this grip device at least comprises: jig main body (1), control arm ball stud (2), two power bars (3), hydraulic cylinder (4); Described jig main body (1) consists of rectangular two rigid arm, and place, right angle is provided with control arm ball stud (2), and the middle part of described two rigid arm is respectively provided with two two power bars (3), and end is respectively provided with a hydraulic cylinder (4).
2. subframe twin shaft load test grip device according to claim 1, it is characterized in that, two rigid arm of described jig main body (1) are vertical opening along X-axis, Y direction, control arm mounting head is extended by right angle intersection in X-axis rigid arm and Y-axis rigid arm, is provided with longitudinal hole (1-1) and horizontal through hole (1-2) on it.
3. subframe twin shaft load test grip device according to claim 2, it is characterized in that, the middle part bilateral symmetry of described X-axis rigid arm is provided with the interior outer lug boss parallel with Y-axis rigid arm, wherein the end face of inner side boss is provided with the X-axis inner bolt hole (1-3) parallel with Y-axis, by two power bars (3-1) in bolt-connection X-axis, the end face of outside boss is provided with the outer screw (1-4) of the X-axis parallel with Y-axis, by the outer two power bars (3-2) of bolt-connection X-axis.
4. subframe twin shaft load test grip device according to claim 3, it is characterized in that, the elongated end of described X-axis rigid arm is symmetrically arranged with the interior external end head parallel with Y-axis rigid arm, on described interior external end head, be provided with the X-axis inner via hole (1-5) parallel with X-axis, X-axis accessibke porosity (1-6), for X-axis hydraulic cylinder (4-1) is installed.
5. subframe twin shaft load test grip device according to claim 2, it is characterized in that, the middle part bilateral symmetry of described Y-axis rigid arm is provided with the interior outer lug boss parallel with X-axis rigid arm, wherein the end face of inner side boss is provided with the Y-axis inner bolt hole (1-7) parallel with X-axis, by two power bars (3-3) in bolt-connection Y-axis, the end face of outside boss is provided with the outer screw (1-8) of the Y-axis parallel with X-axis, by the outer two power bars (3-4) of bolt-connection Y-axis.
6. subframe twin shaft load test grip device according to claim 5, it is characterized in that, the elongated end of described Y-axis rigid arm is symmetrically arranged with the interior external end head parallel with X-axis rigid arm, on described interior external end head, be provided with the Y-axis inner via hole (1-9) parallel with Y-axis, Y-axis accessibke porosity (1-10), for Y-axis hydraulic cylinder (4-2) is installed.
7. according to the subframe twin shaft load test grip device described in claim 4 or 6, it is characterized in that, described X-axis hydraulic cylinder (4-1) and the self-movement of Y-axis hydraulic cylinder (4-2) both direction are loaded into the load of both direction on auxiliary frame structure simultaneously.
8. subframe twin shaft load test grip device according to claim 2, it is characterized in that, in the longitudinal hole (1-1) of the control arm mounting head of described X-axis rigid arm YuYZhou rigid arm intersection, control arm ball stud (2) is installed, bar portion end is fixed with nut screwing clamping; Another bolt penetrates in horizontal through hole (1-2), and fastening nut is control arm ball stud (2) connect control arm fixedly.
9. subframe twin shaft load test grip device according to claim 1, it is characterized in that, the upper/lower terminal of described two power bars (3) is all provided with ball pivot, upper end ball pivot jockey main body (1), and lower end ball pivot connects the fixedly six direction free degree of extraneous point.
10. subframe twin shaft load test grip device according to claim 9, it is characterized in that, described two power bars (3) refer to that gravity disregards in situation, are only subject to two power and rod member in balance, and the power at two power bar 3 two ends is only along the direction of rod member two ends line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596095.3A CN103612226B (en) | 2013-11-21 | 2013-11-21 | A kind of subframe Biaxial stress test fixture device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310596095.3A CN103612226B (en) | 2013-11-21 | 2013-11-21 | A kind of subframe Biaxial stress test fixture device |
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| CN103612226A true CN103612226A (en) | 2014-03-05 |
| CN103612226B CN103612226B (en) | 2016-03-16 |
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| CN201310596095.3A Active CN103612226B (en) | 2013-11-21 | 2013-11-21 | A kind of subframe Biaxial stress test fixture device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000938A (en) * | 2018-10-15 | 2018-12-14 | 陈俊 | A kind of subframe Biaxial stress test fixture device |
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| CN202305198U (en) * | 2011-10-25 | 2012-07-04 | 上海汇众汽车制造有限公司 | Test fixture for automobile control arm |
| CN202676445U (en) * | 2012-07-11 | 2013-01-16 | 芜湖市中兴机械技术开发有限公司 | Automobile part fatigue testing tools |
| CN203148664U (en) * | 2013-03-15 | 2013-08-21 | 上海汇众汽车制造有限公司 | Test fixture for front auxiliary frame control arm |
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2013
- 2013-11-21 CN CN201310596095.3A patent/CN103612226B/en active Active
Patent Citations (6)
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| CN2901278Y (en) * | 2006-05-12 | 2007-05-16 | 上海工程技术大学 | Analogue test table frame for automobile front axle rocking arm dynamic strength durability |
| KR100787238B1 (en) * | 2006-11-09 | 2007-12-21 | 한국기계연구원 | Driveline test bench of vehicle chassis system and test method using the same |
| US20100126262A1 (en) * | 2008-11-21 | 2010-05-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Test Fixture |
| CN202305198U (en) * | 2011-10-25 | 2012-07-04 | 上海汇众汽车制造有限公司 | Test fixture for automobile control arm |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109000938A (en) * | 2018-10-15 | 2018-12-14 | 陈俊 | A kind of subframe Biaxial stress test fixture device |
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| CN103612226B (en) | 2016-03-16 |
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