CN104296978B - Automotive engine hood latch fatigue testing device - Google Patents
Automotive engine hood latch fatigue testing device Download PDFInfo
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- CN104296978B CN104296978B CN201410506349.2A CN201410506349A CN104296978B CN 104296978 B CN104296978 B CN 104296978B CN 201410506349 A CN201410506349 A CN 201410506349A CN 104296978 B CN104296978 B CN 104296978B
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- latch
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- cylinder
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- spring lock
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Abstract
The invention relates to an automotive engine hood latch fatigue testing device. The device is provided with an upper pressing plate provided with a spring lock, and a tool support provided with a latch, wherein the tool support is fixed on a lower pressing plate, the lower pressing plate and the upper pressing plate are connected in a matched mode through at least two guide rods and shaft sleeves matched with the guide rods, a force application cylinder is installed above the upper pressing plate, the force application center of the force application cylinder, the center of the latch and the center of the spring lock are kept on the same straight line, each guide rod located between the lower pressing plate and the upper pressing plate is sleeved with a compression spring, a latch unlocking mechanism is connected with an extension bar of a latch unlocking cylinder through a latch unlocking wire tendon for the latch unlocking mechanism to conduct unlocking, and a spring lock unlocking mechanism is connected with an extension bar of a spring lock unlocking cylinder through a spring lock unlocking wire tendon for the spring lock unlocking mechanism to conduct unlocking, so that the latch is separated from a matched spring lock assembly. The device meets the test standard requirements of a fatigue test for an automotive engine hood latch and a matched spring lock assembly before the latch and the spring lock assembly leave the factory.
Description
Technical field
The present invention relates to a kind of automobile engine cover lock catch fatigue experimental device, especially one kind are simulating actually used shape
The lock of the automobile engine cover lock catch under state and the fatigue experimental device of latch.
Background technology
Country is to the installation lock of automobile engine cover lock catch and the latch assembly of coupling in production and serviceability and product
Series of standards has been promulgated in product exfactory inspection, and for meeting standard, enterprise is during producing and assembling automobile engine cover lock catch
Work out with the inspection before product export and wanted summing target accordingly.One of them is the installation lock of automobile engine cover lock catch
Before dispatching from the factory with the latch assembly of coupling, fatigue test wants summing target.Require automobile engine cover lock catch before dispatching from the factory it is necessary to
The latch assembly fatigue test index installing lock and coupling completing automobile engine cover lock catch is it is ensured that automotive hood is locked
Be buckled in the range of service life, in working order in, lock and latch assembly on opening direction Tensile power effect under, lock
Not separated with the latch assembly mating, the latch assembly free from flaw installing lock and coupling of automobile engine cover lock catch, constantly
Split.The method of inspection that domestic production automobile engine cover lock catch producer generally adopts at present is two kinds, and a kind of method is only to vapour
The production material of car engine cover lock makes a strength test, and to the installation lock of automobile engine cover lock catch and touching of coupling
The fatigue test of lock assembly is directly dispatched from the factory because the shortage of assay device is no longer tested；Second method is to send out automobile
The latch assembly installed lock and mate of dynamic hood lock catch is directly installed on vehicle body, carries out fatigue test on request；It can be seen that
First method is the intensity index only examining material, and the latch installing lock and coupling to automobile engine cover lock catch
The fatigue test index of assembly is not done, and the defect that automobile engine cover lock catch produces during processing and installation is had no way of at all
Consider, bring very big potential safety hazard in use to car load, product rework rate is high.Second method completes on vehicle body
Automobile engine cover lock catch fatigue test index, simulates bonnet latch fatigue situation during use completely.But it is this
Method test high cost, place area occupied is big, low to the sampling observation many test efficiencies of batch.
Content of the invention
The purpose of the present invention is tired before the latch assembly latching and mating dispatches from the factory for installing of automobile engine cover lock catch
Test provides the lock of an automobile engine cover lock catch and latch to simulate a kind of examination that real use state carries out fatigue test
Experiment device, carries out fatigue examination to meet the latch assembly installed lock and mate to automobile engine cover lock catch by company standard
Test, fatigue test is carried out it is ensured that it is during fatigue test by automobile engine cover lock catch under car load use state, automobile
Bonnet latch simulation real use state and stress；Improve conforming product rate, meet automobile engine cover lock catch
The examination criteria installing fatigue test before the latch assembly latching and mating dispatches from the factory requires.
For achieving the above object, technical scheme: a kind of automobile engine cover lock catch fatigue experimental device, have
One be used for install the top board of latch of fixed car bonnet latch, one be used for fixed car bonnet louver is installed
The lock tooling bracket of button, top board is located above tooling bracket, and makes lock center with latch center point-blank, work
Dress support is fixed on lower platen, is connected by least two guide rods and supporting axle sleeve between lower platen and top board,
Top board is along the upper and lower guiding movement of guide rod；Top board top equipped with force cylinder, force cylinder force application center, lock center,
Latch center keeps point-blank, and when force cylinder loads downwards, lock and latch assembly are on primary lock position；
It is socketed with compression spring, spring is to lock and latch assembly in opening square on every guide rod between lower platen and top board
It is upwardly formed a tensile force；The unlocking mechanism of lock passes through the extension bar that lock unblock steel tendon connects lock unblock cylinder,
Unlocking mechanism unblock for lock；The unlocking mechanism of latch unlocks steel tendon by latch and connects stretching out of Latch unlocks cylinder
Bar, for the unlocking mechanism unblock of latch, is made lock and is separated with the latch assembly mating.
Unblock cylinder is arranged on left skeleton column；Latch unlocks cylinder is arranged on the crossbeam on skeleton rear column；Force vapour
Cylinder is arranged on framework beam；Framework beam is fixed in left skeleton column and right skeleton column, and left skeleton column, right skeleton stand
Post, skeleton rear column are fixedly connected on above lower skeleton.
The pivot pin in the hole that the lock of automobile engine cover lock catch embeds tooling bracket is fixed, and tooling bracket is passed through with lower platen
Securing member is fixedly connected, and lower platen is fixedly connected with lower skeleton by four securing members.
Four edges of top board embed four axle sleeves, and four axle sleeves are fixedly connected with top board cooperation, axle sleeve inner sleeve
Enter guide rod, the lower end screw rod of guide rod is fixedly connected with the screw cooperation of lower platen.
Beneficial effects of the present invention:
By electrical equipment control pneumatic circuit, the reversal valve in pneumatic circuit completes cylinder compression and unclamps car engine the present invention
The lock of hood lock catch declines and the fixed point action that rises and the retraction of another two cylinder and unclamp automobile engine cover lock catch
Lock and the unlocking mechanism fixed point action of matching latch, and fatigue experimental device is then total by automobile engine cover lock catch
Become to have moved on assay device from vehicle body, simulate the real use state of automobile engine cover lock catch completely and carry out is tired
Labor test action.The fatigue test of the latch assembly installing lock and coupling solving automobile engine cover lock catch is due to test
The shortage of device is not tested and the quality drawback causing that directly dispatches from the factory, and also solves simultaneously and completes car engine on vehicle body
Hood lock catch assembly fatigue test high cost, place area occupied is big, the problem low to the sampling observation many test efficiencies of batch.This is tired
Labor assay device high degree of automation, easy to operate, reliable in action, whole table apparatus structure is simple, and investment is little, is easy to safeguard.Full
Foot country examination criteria requires.
Brief description
Fig. 1 is the structural front view of the present invention；
Fig. 2 is the partial enlarged drawing at a in Fig. 1；
Fig. 3 is the left view of the present invention；
Fig. 4 is the top view of the present invention.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, a kind of automobile engine cover lock catch fatigue experimental device, including tooling bracket 2, lower platen
3rd, top board 7, axle sleeve 9, guide rod 10, lower skeleton 11, compression spring 12, framework beam 13, force cylinder 14, left skeleton column
15th, lock unblock cylinder 16, lock unblock steel tendon 17, the crossbeam 18 on skeleton rear column, Latch unlocks cylinder 19, unblock steel
Tow 20, right skeleton column 21, skeleton rear column 22 etc..
The pivot pin in the hole that the lock 1 of the automobile engine cover lock catch after the completion of assembling is embedded tooling bracket 2 is fixed, frock
Support 2 is connected by bolt 4 with lower platen 3, and it is solid respectively with assay device lower skeleton 11 that lower platen 3 passes through four bolts 5
Fixed, then the latch 6 of the automobile engine cover lock catch after the completion of assembling is connected by bolt 8 with top board 7, latch 1 and
Latch 6 center should be point-blank.Four edges of top board 7 embed four axle sleeves 9, solid with top board 7 by cooperation
Fixed, axle sleeve 9 is inserted in guide rod 10, can slide up and down, and four guide rods 10 are provided with four compression springs 12, four compression springs 12
Drafts produced by upwards elastic force answer Pass Test standard to require through adjusting, by the lower end screw rod of guide rod 10 and lower platen 3
Screw be connected.Framework beam 13 is fixed in left skeleton column 15 and right skeleton column 21, left skeleton column 15, right bone
Erect post 21, skeleton rear column 22 is fixedly connected on above lower skeleton 11.On the framework beam 13 of assay device install one to
The force cylinder 14 of lower force, the force application center of force cylinder 14 should keep point-blank with lock 1 and latch 6 center,
Lock unblock cylinder 16 is installed in left skeleton column 15 lower end of assay device, and the extension bar of lock unblock cylinder 16 is solved by lock
Lock steel tendon 17 is connected with the unlocking mechanism of lock 1, and the crossbeam 18 on assay device skeleton rear column 22 is installed latch unblock
Cylinder 19, the extension bar of Latch unlocks cylinder 19 is unlocked steel tendon 20 by latch and is connected with the unlocking mechanism of latch 6.Open work
Make button, first reversal valve energising in pneumatic circuit, force cylinder 14 push rod pushes and is loaded, under push to pressing plate 7 and drive
Latch 6 slide downward, makes lock 1 and the assembly of latch 6 be on primary lock situation, loaded value requires for test standard
Value.First reversal valve dead electricity, force cylinder 14 push rod unloading is gone up, and now top board 7 is formed by four compression springs 12
To a lock 1 and latch 6 assembly tensile force on opening direction, and latch 1 and must not separate with latch 6 assembly mating,
Second reversal valve energising, lock unblock cylinder 16 extension bar retraction, the unblock of lock 1 is pulled by lock unblock steel tendon 17
Mechanism unlocks, time delay 0.5 second, the 3rd reversal valve energising, and Latch unlocks cylinder 19 extension bar bounces back, and unlocks steel wire by latch
The unlocking mechanism unblock of bundle 20 pulling latch 6, lock 1 is separated with latch 6 assembly mating.Top board 7 is by four compression bullets
The elastic force of spring 12 unclamps upwards and returns back to original position, second reversal valve and the 3rd reversal valve dead electricity, lock unblock cylinder 16 He
The extension bar homing of Latch unlocks cylinder 19, forms a circulation, then is recycled to fatigue test number of times successively, observe automobile
Bonnet latch assembly has or not fracture and crack phenomenon.Complete the fatigue test of automobile engine cover lock catch assembly.
Present invention difference on assay device skeleton by the lock of the automobile engine cover lock catch after the completion of assembling and latch
Fixing, assay device top board loads downwards under cylinder action, makes lock and latch assembly be in primary lock situation
On.The top board of assay device is upwardly formed a tensile force to lock and latch assembly in opening square by four springs, lock
Button must not be separated with the latch assembly mating, then opens unlocking mechanism by two cylinders, latches composition total with the latch mating
Open.Form a circulation, be repeatedly performed by the cycle-index of test requirements document, observe automobile engine cover lock catch assembly and have or not fracture
Phenomenon.The real use state of this device energy simulated automotive bonnet latch completely carries out fatigue test, safe and reliable, meets
Enterprise product dispatches from the factory the fatigue test standard of regulation.
The present invention is applied to the latch assembly installing lock and coupling of automobile engine cover lock catch, to automobile before dispatching from the factory
A kind of assay device that real use state carries out fatigue test simulated by the lock of bonnet latch and latch.Automaticity
Height, easy to operate, put into little, reliable in action, meet national examination criteria and require.
Claims (4)
1. a kind of automobile engine cover lock catch fatigue experimental device, has one for installing fixed car bonnet latch
The top board (7) of latch (6), the tooling bracket (2) of a lock (1) for installing fixed car bonnet latch, on
Pressing plate (7) is located at tooling bracket (2) above, and makes lock (1) center with latch (6) center point-blank, and its feature exists
In: described tooling bracket (2) is fixed on lower platen (3), passes through at least two guide rods between lower platen (3) and top board (7)
(10) it is connected with supporting axle sleeve (9), top board (7) is along guide rod (10) guiding movement up and down；Top board (7) top equipped with
Force cylinder (14), the force application center of force cylinder (14), lock (1) center, latch (6) center keep point-blank,
When force cylinder (14) loads downwards, lock and latch assembly are on primary lock position；Positioned at lower platen (3) and upper pressure
Compression spring (12) is socketed with the every guide rod (10) between plate (7), spring (12) is to lock and latch assembly in opening square
It is upwardly formed a tensile force；The unlocking mechanism of lock (1) is passed through lock unblock steel tendon (17) and is connected lock unblock cylinder
(16) extension bar, the unlocking mechanism for latching (1) unlocks；The unlocking mechanism of latch (6) unlocks steel tendon by latch
(20) connect the extension bar of Latch unlocks cylinder (19), for the unlocking mechanism unblock of latch (6), make lock (1) and mate
Latch (6) assembly is separate.
2. automobile engine cover lock catch fatigue experimental device according to claim 1 it is characterised in that: described lock unblock
Cylinder (16) is arranged on left skeleton column (15)；Latch unlocks cylinder (19) is arranged on the crossbeam on skeleton rear column (22)
(18)；Force cylinder (14) is arranged on framework beam (13)；Framework beam (13) is fixed on left skeleton column (15) and right skeleton
On column (21), left skeleton column (15), right skeleton column (21), skeleton rear column (22) are fixedly connected on lower skeleton (11)
Face.
3. automobile engine cover lock catch fatigue experimental device according to claim 1 it is characterised in that: described car engine
The pivot pin in the hole that the lock (1) of hood lock catch embeds tooling bracket (2) is fixed, and tooling bracket (2) passes through fastening with lower platen (3)
Part is fixedly connected, and lower platen (3) is fixedly connected with lower skeleton (11) by four securing members.
4. automobile engine cover lock catch fatigue experimental device according to claim 1 it is characterised in that: described top board
(7) four edges embed four axle sleeves (9), and four axle sleeves (9) are fixedly connected with top board (7) cooperation, axle sleeve (9) inner sleeve
Enter guide rod (10), the lower end screw rod of guide rod (10) is fixedly connected with the screw cooperation of lower platen (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506349.2A CN104296978B (en) | 2014-09-28 | 2014-09-28 | Automotive engine hood latch fatigue testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506349.2A CN104296978B (en) | 2014-09-28 | 2014-09-28 | Automotive engine hood latch fatigue testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104296978A CN104296978A (en) | 2015-01-21 |
| CN104296978B true CN104296978B (en) | 2017-01-18 |
Family
ID=52316805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506349.2A Active CN104296978B (en) | 2014-09-28 | 2014-09-28 | Automotive engine hood latch fatigue testing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104296978B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928716A (en) * | 2016-07-13 | 2016-09-07 | 昆山浩硕精密机械有限公司 | Safety type automobile angle adjuster torque testing device |
| CN108152032B (en) * | 2018-03-20 | 2024-04-23 | 天津仲宇博金属制品有限公司 | Lock catch fatigue testing machine |
| CN109781401A (en) * | 2019-03-07 | 2019-05-21 | 武汉佳特轿车零部件有限公司 | A kind of durable detection system of hood lock |
| CN114295360A (en) * | 2022-01-11 | 2022-04-08 | 襄阳达安汽车检测中心有限公司 | Opening and closing endurance test device and endurance test method for air stay rod engine hood |
| CN116577090B (en) * | 2023-07-14 | 2023-09-08 | 珠海翔翼航空技术有限公司 | Bolt fatigue detection equipment for aviation face guard |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2836221B1 (en) * | 2002-02-15 | 2004-05-21 | Peugeot Citroen Automobiles Sa | PORTABLE DEVICE FOR MONITORING THE PRESSURE OF A GAS SPRING |
| CN201193979Y (en) * | 2008-05-06 | 2009-02-11 | 伟速达（昆山）安全系统有限公司 | Fatigue experiment machine for automobile lock core |
| CN202075119U (en) * | 2011-03-31 | 2011-12-14 | 奇瑞汽车股份有限公司 | Synchronous pressure load test device of seat belt lock and dead bolt |
-
2014
- 2014-09-28 CN CN201410506349.2A patent/CN104296978B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2836221B1 (en) * | 2002-02-15 | 2004-05-21 | Peugeot Citroen Automobiles Sa | PORTABLE DEVICE FOR MONITORING THE PRESSURE OF A GAS SPRING |
| CN201193979Y (en) * | 2008-05-06 | 2009-02-11 | 伟速达（昆山）安全系统有限公司 | Fatigue experiment machine for automobile lock core |
| CN202075119U (en) * | 2011-03-31 | 2011-12-14 | 奇瑞汽车股份有限公司 | Synchronous pressure load test device of seat belt lock and dead bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104296978A (en) | 2015-01-21 |
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