CN104634653B - Automobile power assembly suspending support arm destructive power test fixture and tensile test apparatus - Google Patents
Automobile power assembly suspending support arm destructive power test fixture and tensile test apparatus Download PDFInfo
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- CN104634653B CN104634653B CN201310567192.XA CN201310567192A CN104634653B CN 104634653 B CN104634653 B CN 104634653B CN 201310567192 A CN201310567192 A CN 201310567192A CN 104634653 B CN104634653 B CN 104634653B
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- support arm
- power
- power assembly
- assembly suspending
- destructive
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- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 230000001066 destructive effect Effects 0.000 title claims abstract description 50
- 238000009864 tensile test Methods 0.000 title claims abstract description 24
- 238000002474 experimental method Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to automobile power assembly suspending support arm destructive power test fixture and tensile test apparatus.The test fixture includes：Adpting flange, its motion portion for being affixed to the tensile test apparatus for the experiment of automobile power assembly suspending support arm destructive power；Force-guided stem, it is in shaft-like and with first end and the second end, and first end is fixed on adpting flange；Power framework is led, it has first end and the second end, its first end for leading power framework is fixed on the second end of force-guided stem, the second end is provided with ejector pin；Fixing hoop, its be installed in lead in power framework and including can be removably mounted with one end of automobile power assembly suspending support arm is fixedly clamped upper piece and bottom sheet, bottom sheet is provided with gathering sill, point is engaged between gathering sill and ejector pin, is rotated to avoid producing moment of flexure by Planar Mechanisms around contact point during power is transmitted to constitute pin force transferring structure；And installation pedestal.Test fixture of the invention can be applied to all kinds of automobile power assembly suspending support arm destructive power bench tests.
Description
Technical field
The present invention relates to a kind of test fixture, more particularly to a kind of automobile power assembly suspending part destructive power test fixture
And tensile test apparatus.
Background technology
Automobile power assembly suspension system is one of most important safety component of automobile, and its Main Function is stationary engine
And gearbox, engine and gearbox are connected firmly on vehicle body and vehicle frame by mounting bracket or support arm.Therefore, support arm one is suspended
Aspect bears the load of engine driving torque generation, while also subject to the load produced by road load excitation.Suspension branch
The harsh load environment of arm requires that it has intensity higher, and an important tests for evaluating support arm intensity are the examinations of support arm destructive power
Test.Fig. 1 show the suspension support arm 1a of certain engine in the prior art, and support arm one end is connected by bolt hole 2a with engine,
The other end is connected by suspension with vehicle body.The experiment of support arm destructive power fixes support arm one end by bolt hole 2a, in the support arm other end
Apply a directed force F for incrementally increasing, as shown in figure 1, the effect F as support arm destructive power recorded when support arm is broken.
Traditional support destructive power test structure, refer to shown in Fig. 2.In the figure, tensile test apparatus 3a is by watching
Taking motor drives adpting flange 4a and force-guided stem 5a to move up and down, and suspension support arm 1a one end is bolted tension test dress
Put on installation pedestal 7a, the other end is connected on force-guided stem 5a by test fixture 6a.Between test fixture 6a and force-guided stem 5a
Can be bolted or weld.Force-guided stem 5a drives in the servomotor of tensile test apparatus and moves up and down, so that will
Suspension support arm 1a breaks or breaks, and tensile test apparatus built-in sensors can read the power and displacement when support arm is destroyed.
In the above-mentioned this test method that Fig. 2 shows, because test fixture 6a and force-guided stem 5a passes through bolt or welding
Mode is connected, and is belonged to and is rigidly connected, therefore there are Planar Mechanisms when part stress deforms, the actual loading with part on automobile
It is inconsistent.Under the actual loading border of vehicle, by suspending connection vehicle body, it is elastomeric material to suspend to generally suspension support arm 1a,
Can be deformed by after load with good elasticity because rubber stiffness is smaller, therefore suspension support arm is connected with vehicle body and is not
It is rigidly connected.Conventional test methods stressing conditions, can be with further reference to Fig. 3 and Fig. 4.As shown in these figures, in experiment
In the presence of directed force F, tested parts suspension support arm 1a and force-guided stem 5a move to dotted line position, due to test fixture 6a with lead
Power bar 5a is rigidly connected by bolt or welding manner, then in figure at nearly test fixture suspend support arm 1a and force-guided stem 5a between
Angle keeps constant, and stress leading angle α is equal with both rear angle β.Cause force-guided stem 5a and tested parts due to being rigidly connected
This free degree of the angle of suspension arm room is restrained, and moment of flexure will necessarily be produced in experiment, and actually automobile power assembly hangs
Support arm is put in the absence of this moment of flexure caused by Planar Mechanisms.As shown in figure 3, moment M 1 can cause tested parts failure mode with
Complete vehicle test is inconsistent, and is disturbed by M1, and the destructive power for causing the experiment to measure is inaccurate, proves this by lot of experiments
Jig Design causes error of test data more than more than 20%.Simultaneously as moment M 2 is acted on force-guided stem, therefore when serious
Shi Keneng damages tensile test apparatus.
The experiment of support arm destructive power is for evaluating support intensity, ensureing vehicle safety, check designing quality, optimization design etc.
Aspect is significant, but in view of traditional experiment device and test method to there is result of the test inaccurate, and easily produce
The power of horizontal direction and cause experimental facilities to damage, therefore need badly problems above researched and solved.
The content of the invention
In view of this, it is an object of the invention to provide a kind of automobile power assembly suspending support arm destructive power test fixture and
Tensile test apparatus, so as to effectively solve the problems, such as above-mentioned and other aspect present in prior art.
For achieving the above object, the technical solution adopted by the present invention is as follows：
A kind of automobile power assembly suspending support arm destructive power test fixture, the automobile power assembly suspending support arm destructive power
Test fixture includes：
Adpting flange, it is used to be affixed to the tensile test apparatus for the experiment of automobile power assembly suspending support arm destructive power
Motion portion；
Force-guided stem, it is in shaft-like and with first end and the second end, and the first end is fixed on the adpting flange；
Power framework is led, its first end with first end and the second end, the power of the leading framework is fixed on the force-guided stem
Second end, the second end of the power of the leading framework is provided with ejector pin；
Fixing hoop, it is installed in described leading in power framework and including can be removably mounted with by automobile power assembly suspending support arm
One end be fixedly clamped upper piece and bottom sheet, gathering sill is provided with the bottom sheet, between the gathering sill and the ejector pin point connect
Touch and coordinate, be rotated to avoid being produced by Planar Mechanisms around contact point during power is transmitted to constitute pin force transferring structure
Raw moment of flexure；And
Installation pedestal, its bottom mounting platform for being used to be affixed to the tensile test apparatus, and automobile power assembly
The other end for suspending support arm is connected by connector with installation pedestal.
In above-mentioned automobile power assembly suspending support arm destructive power test fixture, alternatively, the adpting flange and institute
The first end of force-guided stem is stated by being welded to connect.
In above-mentioned automobile power assembly suspending support arm destructive power test fixture, alternatively, the of the power of the leading framework
One end is connected with the second end of the force-guided stem by built-in screw fastener.
In above-mentioned automobile power assembly suspending support arm destructive power test fixture, alternatively, the ejector pin is led with described
Power framework is by being welded to connect.
In above-mentioned automobile power assembly suspending support arm destructive power test fixture, alternatively, the ejector pin is machining
Stud.
In above-mentioned automobile power assembly suspending support arm destructive power test fixture, alternatively, the connector is bolt.
A kind of tensile test apparatus for the experiment of automobile power assembly suspending support arm destructive power, the tensile test apparatus
It is upper to set just like the automobile power assembly suspending support arm destructive power test fixture described in any of the above.
The beneficial effects of the present invention are：In automobile power assembly suspending support arm destructive power test fixture of the invention,
Realize that horizontal direction is decoupled with movement in vertical direction by setting the ejector pin structure of novelty, discharge test part and force-guided stem
Between the angle free degree such that it is able to be prevented effectively from Planar Mechanisms problem present in traditional experiment jig Design.This experiment
Fixture meets the loading characteristic of automobile suspended support arm, its can accurate simulation dynamic assembly suspension support arm receive force boundary, prevent examination
Test process due to the moment of flexure produced by Planar Mechanisms destructive test equipment, while guarantee test data are accurately credible so that stand
Test failure pattern is consistent with vehicle failure mode.Automobile power assembly suspending support arm destructive power of the invention can be tested
Fixture is attached on tensile test apparatus, and is applied to all kinds of automobile power assembly suspending support arm destructive power bench tests.
Brief description of the drawings
Below with reference to drawings and Examples, technical scheme is described in further detail.
Fig. 1 is the structural representation that a kind of test part of the prior art suspends support arm.
Fig. 2 is traditional suspension support arm destructive power experiment schematic diagram.
Fig. 3 is the stressing influence schematic diagram of traditional suspension support arm destructive power test fixture design.
Fig. 4 is that the stereochemical structure of automobile power assembly suspending support arm destructive power test fixture one embodiment of the invention is shown
It is intended to.
Fig. 5 is the attachment structure schematic diagram that power framework is led in embodiment illustrated in fig. 4.
Fig. 6 is the attachment structure schematic diagram of suspension support arm and fixing hoop in embodiment illustrated in fig. 4.
Fig. 7 is the cooperation schematic diagram of ejector pin and fixing hoop gathering sill in embodiment illustrated in fig. 4.
Fig. 8 is upper piece attachment structure schematic diagram with bottom sheet of fixing hoop in embodiment illustrated in fig. 4.
Fig. 9 is the attachment structure schematic diagram of suspension support arm and installation pedestal in embodiment illustrated in fig. 4.
Figure 10 is the stressing influence schematic diagram of suspension support arm destructive power test fixture design of the invention.
Specific embodiment
It should be noted that will by way of example illustrate automobile power assembly suspending support arm of the invention below breaking
The principle of bad power test fixture and tensile test apparatus, feature and advantage, but all of description is intended merely to illustrate
, without they should be interpreted as to form any limitation to the present invention.Additionally, giving in each embodiment mentioned by this paper
Description or implicit any single technical characteristic, or shown or implicit any single technical characteristic in the drawings, still
So can proceed to be combined or delete between these technical characteristics (or its equivalent), so as to obtain not exist
The of the invention more other embodiments for directly referring to herein.
Refer to shown in Fig. 4, automobile power assembly suspending support arm destructive power test clamp of the invention is given in the figure
One specific example of tool.In this embodiment, the automobile power assembly suspending support arm destructive power test fixture includes connection
Flange 4, force-guided stem 5, fixing hoop 6, installation pedestal 7, lead power framework 8 etc., below just for these building blocks and its they
Between connection and arrangement relation etc. be described in detail.
In the following description, please in combination with reference to Fig. 4 to Fig. 9.First, in the present invention, adpting flange 4 is to be fixed
The motion portion of tensile test apparatus 3 (Fig. 9) is connected to, the tensile test apparatus 3 are provided for carrying out automobile power assembly and hang
Put the experiment of support arm destructive power.As shown in figure 4, force-guided stem 5 is configured to shaft-like and with two ends, wherein one end can be using such as
It is welded to connect, the connected mode such as bolt connection and adpting flange 4 are fixed together, its other end can be by setting connector 15
(such as bolt or built-in screw) mode is fixedly attached on the one end for leading power framework 8.Meanwhile, leading the other end of power framework 8
On be provided with ejector pin 9, the ejector pin 9 can be linked together with both power frameworks 8 are led by using the mode such as being welded to connect.Only
As an example, in the illustrated embodiment, above-mentioned ejector pin 9 can be a machining stud, and lead to as illustrated in fig. 4
Cross it is fixed using bolt 14.
As shown in figure 5, being equiped with fixing hoop 6 in the inside for leading power framework 8, the fixing hoop 6 is upper with what be can be removably mounted
, can be fixedly clamped for one end of automobile power assembly suspending support arm by them by piece 10 and bottom sheet 11.In above-described embodiment
In, gathering sill 13 is provided with bottom sheet 11, the gathering sill 13 can carry out a little being engaged with ejector pin 9, thus constitute pin
Force transferring structure, so as to be rotated around the contact point between them during power is transmitted, avoiding problems
The foregoing undesirable moment of flexure produced due to Planar Mechanisms problem present in traditional structure, will then be carried out in detail to this
State.
Installation pedestal 7 is the support member in this automobile power assembly suspending support arm destructive power test fixture, is connected
Onto the bottom mounting platform of tensile test apparatus 3.Additionally, also passing through connector by the one of automobile power assembly suspending support arm 1
End links together with installation pedestal 7.For example, for as an example, as shown in Fig. 6, Fig. 8 and Fig. 9, using bolt etc. even
Be affixed in installation pedestal 7 for one end of automobile power assembly suspending support arm 1 through bolt hole 2 by fitting, while automobile is moved
The other end of power assembly suspension support arm 1 by fixing hoop 6 upper piece 10, bottom sheet 11 be clamped fixation, can for example use
The connectors such as bolt through upper piece 10, bolt hole 12,16 in bottom sheet 11 realizes being fixedly clamped.
Refer to shown in Fig. 5, Fig. 6 and Fig. 7, as noted previously, as in the examination of this automobile power assembly suspending support arm destructive power
Gathering sill 13 is designed with the fixing hoop 6 tested in fixture, and is innovated with the mutual cooperation of ejector pin 9 by the gathering sill 13
Property constitute a pin force transferring structure, this latch structure is to solve traditional experiment fixture to have the key of Planar Mechanisms.It is specific next
Say, a little contacting with being combined between ejector pin 9 and gathering sill 13, as shown in Figure 10, automobile power is total for its stressing influence situation sketch
It is released into the angle free degree between suspension support arm 1 and force-guided stem 5, so can just avoid the product of moment of flexure in process of the test
It is raw, so as to be consistent with the real case of real vehicle stress.In this way, this test fixture designed by the present invention not only can be with mould
Intend the actual loading operating mode of part, it is ensured that result of the test it is accurate, and loading process can be made while transmitting forces F
Middle test fixture can be rotated around contact point, you can the moment of flexure for preventing Planar Mechanisms from producing, it is to avoid thus caused horizontal force is damaged
Bad testing equipment.Further, since the presence of the gathering sill 13 on fixing hoop 6 also ensures that tested parts are not in slip,
Therefore improve and ensure that security during experiment.Generally speaking, can be made by using above-mentioned this structure in the present invention
Directed force F effectively prevents from Moment Influence result of the test and avoids damaging to try all the time along the axial direction of force-guided stem 5
Equipment is tested, while can be with guarantee test result accurately and reliably.
Because automobile power assembly suspending support arm destructive power test fixture of the invention has said structure feature and advantage,
Therefore it is very suitable for setting it to the tensile test apparatus for the experiment of automobile power assembly suspending support arm destructive power, so as to
Contribute to efficient, safety and implement various types of automobile power assembly suspending support arm destructive power bench tests exactly.
Be enumerated above example elaborate automobile power assembly suspending support arm destructive power test fixture of the invention and
Tensile test apparatus, these examples are only used for explanation principle of the invention and embodiments thereof, rather than limitation of the present invention,
Without departing from the spirit and scope of the present invention, one of ordinary skill in the art can also make various modifications and change
Enter.Therefore, all equivalent technical schemes all should belong to scope of the invention and be limited by every claim of the invention.
Claims (7)
1. a kind of automobile power assembly suspending support arm destructive power test fixture, it is characterised in that the automobile power assembly suspending
Support arm destructive power test fixture includes：
Adpting flange, its fortune for being used to be affixed to the tensile test apparatus for the experiment of automobile power assembly suspending support arm destructive power
Dynamic portion；
Force-guided stem, it is in shaft-like and with first end and the second end, and the first end is fixed on the adpting flange；
Power framework is led, its first end with first end and the second end, the power of the leading framework is fixed on the second of the force-guided stem
End, the second end of the power of the leading framework is provided with ejector pin；
Fixing hoop, it is installed in described leading in power framework and including can be removably mounted with by one end of automobile power assembly suspending support arm
Be fixedly clamped upper piece and bottom sheet, gathering sill is provided with the bottom sheet, between the gathering sill and the ejector pin put contact match somebody with somebody
Close, be rotated around contact point during power is transmitted to constitute pin force transferring structure curved to avoid being produced by Planar Mechanisms
Square；And
Installation pedestal, its bottom mounting platform for being used to be affixed to the tensile test apparatus, and automobile power assembly suspending
The other end of support arm is connected by connector with installation pedestal.
2. automobile power assembly suspending support arm destructive power test fixture according to claim 1, it is characterised in that the connection
Flange passes through to be welded to connect with the first end of the force-guided stem.
3. automobile power assembly suspending support arm destructive power test fixture according to claim 1, it is characterised in that the power of leading
The first end of framework is connected with the second end of the force-guided stem by built-in screw fastener.
4. automobile power assembly suspending support arm destructive power test fixture according to claim 1, it is characterised in that the ejector pin
With the power of the leading framework by being welded to connect.
5. automobile power assembly suspending support arm destructive power test fixture according to claim 1, it is characterised in that the ejector pin
It is machining stud.
6. automobile power assembly suspending support arm destructive power test fixture according to claim 1, it is characterised in that the connection
Part is bolt.
7. it is a kind of for automobile power assembly suspending support arm destructive power experiment tensile test apparatus, it is characterised in that the drawing
Stretch the automobile power assembly suspending support arm destructive power test clamp set on experimental rig just like any one of claim 1-6
Tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310567192.XA CN104634653B (en) | 2013-11-14 | 2013-11-14 | Automobile power assembly suspending support arm destructive power test fixture and tensile test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310567192.XA CN104634653B (en) | 2013-11-14 | 2013-11-14 | Automobile power assembly suspending support arm destructive power test fixture and tensile test apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104634653A CN104634653A (en) | 2015-05-20 |
| CN104634653B true CN104634653B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310567192.XA Expired - Fee Related CN104634653B (en) | 2013-11-14 | 2013-11-14 | Automobile power assembly suspending support arm destructive power test fixture and tensile test apparatus |
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| Country | Link |
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| CN (1) | CN104634653B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192610B (en) * | 2017-06-30 | 2023-08-25 | 西南交通大学 | Clamp of tensile testing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842001A (en) * | 1956-07-03 | 1960-07-20 | Nat Res Dev | Improvements in or relating to specimen mountings for tensile testing machines |
| KR20050110284A (en) * | 2004-05-18 | 2005-11-23 | 현대모비스 주식회사 | Test part fixing portable jig device |
| CN201138318Y (en) * | 2007-10-22 | 2008-10-22 | 济南试金集团有限公司 | Multifunctional connecting structure of clamp for test machine |
| CN201740696U (en) * | 2010-06-21 | 2011-02-09 | 西安工业大学 | Device for clamping tensile test piece |
| CN202886187U (en) * | 2012-10-11 | 2013-04-17 | 上海华东计算技术研究所实验工厂 | Tensile strength testing fixture |
-
2013
- 2013-11-14 CN CN201310567192.XA patent/CN104634653B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842001A (en) * | 1956-07-03 | 1960-07-20 | Nat Res Dev | Improvements in or relating to specimen mountings for tensile testing machines |
| KR20050110284A (en) * | 2004-05-18 | 2005-11-23 | 현대모비스 주식회사 | Test part fixing portable jig device |
| CN201138318Y (en) * | 2007-10-22 | 2008-10-22 | 济南试金集团有限公司 | Multifunctional connecting structure of clamp for test machine |
| CN201740696U (en) * | 2010-06-21 | 2011-02-09 | 西安工业大学 | Device for clamping tensile test piece |
| CN202886187U (en) * | 2012-10-11 | 2013-04-17 | 上海华东计算技术研究所实验工厂 | Tensile strength testing fixture |
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| Publication number | Publication date |
|---|---|
| CN104634653A (en) | 2015-05-20 |
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Granted publication date: 20170531 |