CN104296987A - Car engine hood lock catch fatigue test device - Google Patents
Car engine hood lock catch fatigue test device Download PDFInfo
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- CN104296987A CN104296987A CN201410590205.XA CN201410590205A CN104296987A CN 104296987 A CN104296987 A CN 104296987A CN 201410590205 A CN201410590205 A CN 201410590205A CN 104296987 A CN104296987 A CN 104296987A
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- snap close
- cylinder
- automobile engines
- lock catch
- unlocking
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Abstract
The invention relates to a car engine hood lock catch fatigue test device. The car engine hood lock catch fatigue test device comprises a tool support used for installing a lock catch of an engine hood of a car, and an inclined pressing plate used for fixing the lock catch of the engine hood of the car. One end of the inclined pressing plate is rotationally connected with a tool beam, a torsion compression spring is installed between the inclined pressing plate and the tool beam, and the other end of the inclined pressing plate is connected with a tension cylinder through a steel wire bundle to be used for a loading test on the lock catch and a spring lock assembly in a primary lock catch position. An unlocking mechanism of the lock catch is connected with an extension rod of an unlocking cylinder through a steel wire bundle, and the unlocking cylinder stretches out a cylinder rod to retract to pull back the unlocking mechanism of the lock catch for unlocking. A thrust unlocking cylinder is arranged below an unlocking lever mechanism of a spring lock, and an extension rod of the thrust unlocking cylinder moves upward to hit a lever of the unlocking mechanism of the spring lock to separate the lock catch from the matched spring lock assembly for unlocking. The car engine hood lock catch fatigue test device is high in automation degree, convenient to operate, reliable in action, simple in overall structure, small in investment and convenient to maintain and meets the requirements of the national detection standards of China.
Description
Technical field
The present invention relates to a kind of for the installation snap close of automobile engines housing snap close and the latch assembly of coupling, the snap close of automobile engines housing snap close and latch are carried out to a kind of test unit of real use state simulation torture test before dispatching from the factory, the real use state that this device can simulate automobile engines housing snap close completely carries out torture test, safe and reliable, meet enterprise product dispatch from the factory regulation torture test standard.
Background technology
Country has promulgated series of standards to the installation snap close of automobile engines housing snap close and the latch assembly of coupling in production and usability and product export inspection, for meeting standard, the inspection of enterprise before producing and assemble automobile engines housing snap close process neutralized product and dispatching from the factory has been worked out and has been wanted summing target accordingly.One of them for the installation snap close of automobile engines housing snap close and the latch assembly of coupling dispatch from the factory before torture test want summing target.Before requirement automobile engines housing latches in and dispatches from the factory, the installation snap close of automobile engines housing snap close and the latch assembly torture test index of coupling must be completed, ensure that automobile engines housing latches within the scope of serviceable life, in working order, snap close and latch assembly are on opening direction under the effect of Tensile power, snap close is not separated with the latch assembly mated, and the installation snap close of automobile engines housing snap close and the latch assembly free from flaw of coupling, do not rupture.Fix on the snap close of the automobile engines housing snap close after having assembled and the pressing plate of latch on test unit skeleton respectively, test unit inclined plate compresses loading downwards under the effect of cylinder pulling force, and snap close and latch assembly are on elementary snap close situation.The inclined plate of test unit forms a pulling force by two torsion springs to snap close and latch assembly on opening direction, and snap close must not separate with the latch assembly mated.Open release mechanism by two cylinders again, snap close separates with the latch assembly mated.Form a circulation, repeated by the cycle index of testing requirements, observe automobile engines housing lock assembly with or without phenomenon of rupture.
The method of inspection that current domestic production automobile engines housing snap close producer adopts usually is three kinds, one method only produces material to automobile engines housing snap close to make a strength test, and no longer test due to the shortage of test unit to the torture test of the installation snap close of automobile engines housing snap close and the latch assembly of coupling and directly dispatch from the factory; Second method is directly installed on vehicle body by the installation snap close of automobile engines housing snap close and the latch assembly of coupling, carries out torture test on request; The third method is arranged on a kind of cover snap close fatigue experimental device the installation snap close of automobile engines housing snap close and the latch assembly of coupling, carries out torture test on request; Visible first method is the intensity index only examining material, and the torture test index of the installation snap close of automobile engines housing snap close and the latch assembly of coupling is not done, automobile engines housing latches in the defect produced in the process of processing and installation and has no way of considering at all, in use bring very large potential safety hazard to car load, product rework rate is high.Second method completes automobile engines housing snap close torture test index on vehicle body, simulates the tired situation of engine hood snap close in use procedure completely.But this method test cost is high, place area occupied is large, low to test efficiency more than sampling observation batch.The third method completes automobile engines housing snap close torture test index on a kind of cover snap close fatigue experimental device, simulates the tired situation of engine hood snap close in use procedure.But this method mounting cup snap close test specimen spended time is longer, require high to four guide rod processing and installation accuracy, during the release of cover snap close elastic force, impulsive force is comparatively large, and test unit parts are fragile, high not enough to large quantities of sampling examination efficiency.
Summary of the invention
The object of the invention is for the installation snap close of automobile engines housing snap close and the latch assembly of coupling dispatch from the factory before torture test a kind of automobile engines housing snap close fatigue experimental device is provided, torture test is carried out to the snap close of automobile engines housing snap close and latch simulation real use state, to meet, by company standard, torture test is carried out to the installation snap close of automobile engines housing snap close and the latch assembly of coupling, torture test is carried out under latching in car load using state by automobile engines housing, ensure that it is in torture test process, automobile engines housing snap close simulation real use state and stress, test specimen is installed simple, during elastic force release, parts are controlled.Improve product percent of pass, the examination criteria requirement of torture test before the latch assembly of the installation snap close and coupling that meet automobile engines housing snap close dispatches from the factory.
The object of the present invention is achieved like this: a kind of automobile engines housing snap close fatigue experimental device, comprise one for installing the tooling bracket of the snap close of automobile engines housing snap close, an inclined plate for the latch of fixing automobile engines housing snap close, inclined plate one end and fixture cross beam are rotatably connected, and twist compression spring is installed between inclined plate and fixture cross beam, the inclined plate other end is mounted on the pulling force cylinder in tool base plate by steel tendon, the assembly for snap close and latch is in the load test on elementary snap close position; The release mechanism of snap close passes through the extension bar of the unblock cylinder of steel tendon connection left skeleton column upper end, and unblock cylinder stretches out cylinder bar retraction and pulls the release mechanism of snap close to unlock; Be provided with thrust below the release lever mechanism of latch and unlock cylinder, thrust unlocks release mechanism lever that the extension bar of cylinder upwards impacts latch and snap close is separated with the latch assembly mated unlock.
Thrust is unlocked cylinder and is connected with tool base plate by height adjusting cushion block, and tool base plate is fixedly connected with skeleton sill.Tooling bracket is fixedly connected with lower platen, and lower platen is fixedly connected with skeleton entablature.Fixed-hinged support is installed in one end of inclined plate, is connected with fixture cross beam by clearance fit.Fixture cross beam installs two twist compression springs by bearing pin.Pulling force cylinder is inserted in the bolt hook on inclined plate by steel tendon, its direction of pull and snap close center parallel.
Beneficial effect of the present invention:
The present invention is by electrical equipment control pneumatic circuit, reversal valve in pneumatic circuit completes cylinder and compresses and unclamp the retraction of the decline of automobile engines housing snap close and the fixed point action of rising and another two cylinders and the release mechanism fixed point action of the rising snap close unclamping automobile engines housing snap close and the latch matched, the assembly of automobile engines housing snap close has then been moved on test unit from vehicle body by fatigue experimental device, simulates the real use state of automobile engines housing snap close completely and the torture test action carried out.The torture test solving the installation snap close of automobile engines housing snap close and the latch assembly of coupling is not tested and the quality drawback caused that directly dispatches from the factory due to the shortage of test unit, also solve that on vehicle body, to complete automobile engines housing lock assembly torture test cost high simultaneously, place area occupied is large, the problem low to test efficiency more than sampling observation batch.Improve and solve a kind of cover snap close fatigue experimental device installation test specimen efficiency low, test unit processing and installation accuracy require high and the flimsy defect of parts.This fatigue experimental device automaticity is high, easy to operate, reliable in action, and whole table apparatus structure is simple, invests little, is convenient to safeguard.Meet national examination criteria requirement.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is structure right view of the present invention;
Fig. 3 is structure vertical view of the present invention;
Fig. 4 is the partial enlarged drawing at A place in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figures 1 to 4, a kind of automobile engines housing snap close fatigue experimental device, comprises snap close 1, tooling bracket 2, lower platen 3, bolt 4, bolt 5, latch 6, inclined plate 7, bolt 8, hinged-support 9, twist compression spring 10, skeleton entablature 11, skeleton sill 12, tool base plate 13, pulling force cylinder 14, left skeleton column 15, unlock cylinder 16, steel tendon 17, steel tendon 20, height adjusting cushion block 21, fixture cross beam 18, thrust unlock cylinder 19, bolt hook 22, bearing pin 23, bolt 24, bolt 25, screw 26, bolt 27.
The snap close 1 of the automobile engines housing snap close after having assembled is embedded the pin hole internal fixtion of tooling bracket 2, tooling bracket 2 is fixedly connected with by bolt 4 with lower platen 3, lower platen 3 is fixedly connected with the skeleton entablature 11 of test unit respectively by four bolts 5, open inclined plate 7, again the latch 6 of the automobile engines housing snap close after having assembled is fixedly connected with rear reposition with inclined plate 7 by two bolts 8, hangs up steel tendon 20.Inclined plate 7 while install fixed-hinged support 9, fixed by clearance fit and fixture cross beam 18, fixture cross beam 18 is installed by bearing pin 23 and fixes two twist compression springs 10, the rotation elasticity that twist compression spring 10 produces answers Pass Test standard-required through adjusting.The skeleton sill 12 of test unit installs one piece of tool base plate 13, tool base plate 13 is connected and fixed by four bolts 24 and skeleton sill 12, pulling force cylinder 14 is arranged in tool base plate 13, pulling force cylinder 14 is inserted in bolt hook 22 by steel tendon 20, direction of pull and snap close 1 center keeping parallelism, left skeleton column 15 upper end of test unit is installed and is unlocked cylinder 16, the cylinder bar that stretches out unlocking cylinder 16 is connected by the release mechanism of steel tendon 17 with snap close 1, in test unit tool base plate 13, back is provided with height adjusting cushion block 21, height adjusting cushion block 21 is connected with tool base plate 13 by four bolts 25, thrust is unlocked cylinder 19 and is connected and fixed by four screws 26 and height adjusting cushion block 21, the cylinder bar that stretches out that thrust unlocks cylinder 19 realizes unlocking function by the release lever mechanism of the impact latch 6 that rises.
Unlatching work button, first reversal valve energising in pneumatic circuit, pulling force cylinder 14 push rod retraction loads, and drives latch 6 slide downward by the drop-down inclined plate 7 of steel tendon 20, make the assembly of snap close 1 and latch 6 be on elementary snap close situation, loaded value is testing standard required value.Time delay 0.5 second, first reversal valve dead electricity, the unloading of pulling force cylinder 14 push rod is risen, and now inclined plate 7 forms a tensile force on opening direction to snap close 1 and latch 6 assembly by twist compression spring 10, and snap close 1 must not separate with latch 6 assembly mated.Second reversal valve energising, unlocks cylinder 16 and stretches out cylinder bar retraction, pull the release mechanism of snap close 1 to unlock by steel tendon 17.Time delay 0.5 second, the 3rd reversal valve energising, thrust unlocks cylinder 19 cylinder bar and rises, and the release mechanism lever upwards impacting latch 6 unlocks, and snap close 1 separates with latch 6 assembly mated.Inclined plate 7 is upwards unclamped by the elastic force of twist compression spring 10 and returns back to original position, second reversal valve and the 3rd reversal valve dead electricity in succession, and what unlock that cylinder 16 and thrust unlocks cylinder 19 stretches out cylinder bar homing, forms a test cycle.Be circulated to torture test number of times successively again, observe automobile engines housing lock assembly with or without fracture and crack phenomenon.Complete the torture test of automobile engines housing lock assembly.
The present invention is applicable to the installation snap close of automobile engines housing snap close and the latch assembly of coupling, the snap close of automobile engines housing snap close and latch simulation real use state is carried out to a kind of test unit of torture test before dispatching from the factory.Automaticity is high, easy to operate, drops into little, reliable in action, meets national examination criteria requirement.
Claims (6)
1. an automobile engines housing snap close fatigue experimental device, comprise one for installing the tooling bracket (2) of the snap close (1) of automobile engines housing snap close, an inclined plate (7) for the latch (6) of fixing automobile engines housing snap close, it is characterized in that: described inclined plate (7) one end and fixture cross beam (18) are rotatably connected, and between inclined plate (7) and fixture cross beam (18), twist compression spring (10) is installed, inclined plate (7) other end is mounted on the pulling force cylinder (14) in tool base plate (13) by steel tendon (20), assembly for snap close (1) and latch (6) is in the load test on elementary snap close position, the release mechanism of snap close (1) passes through the extension bar of the unblock cylinder (16) of steel tendon (17) connection left skeleton column (15) upper end, and unblock cylinder (16) is stretched out cylinder bar retraction and pulled the release mechanism of snap close (1) to unlock, be provided with thrust below the release lever mechanism of latch (6) and unlock cylinder (19), the release mechanism lever that the extension bar that thrust unlocks cylinder (19) upwards impacts latch (6) makes snap close (1) separate with the latch mated (6) assembly to unlock.
2. automobile engines housing snap close fatigue experimental device according to claim 1, it is characterized in that: described thrust is unlocked cylinder (19) and is connected with tool base plate (13) by height adjusting cushion block (21), and tool base plate (13) is fixedly connected with skeleton sill (12).
3. automobile engines housing snap close fatigue experimental device according to claim 1, it is characterized in that: described tooling bracket (2) is fixedly connected with lower platen (3), lower platen (3) is fixedly connected with skeleton entablature (11).
4. automobile engines housing snap close fatigue experimental device according to claim 1, is characterized in that: fixed-hinged support (9) is installed in one end of described inclined plate (7), is connected with fixture cross beam (18) by clearance fit.
5. automobile engines housing snap close fatigue experimental device according to claim 1, is characterized in that: described fixture cross beam (18) installs two twist compression springs (10) by bearing pin (23).
6. automobile engines housing snap close fatigue experimental device according to claim 1, it is characterized in that: described pulling force cylinder (14) is inserted in bolt hook (22) on inclined plate (7) by steel tendon (20), its direction of pull and snap close (1) center parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590205.XA CN104296987B (en) | 2014-10-29 | 2014-10-29 | Car engine hood lock catch fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590205.XA CN104296987B (en) | 2014-10-29 | 2014-10-29 | Car engine hood lock catch fatigue test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104296987A true CN104296987A (en) | 2015-01-21 |
| CN104296987B CN104296987B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410590205.XA Expired - Fee Related CN104296987B (en) | 2014-10-29 | 2014-10-29 | Car engine hood lock catch fatigue test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836063A (en) * | 2017-04-05 | 2017-06-13 | 刘发良 | Berth lock with torsion spring bascule |
| CN107479416A (en) * | 2017-08-21 | 2017-12-15 | 天津航天瑞莱科技有限公司 | A kind of universal fatigue experiment control system |
| CN107560841A (en) * | 2017-10-10 | 2018-01-09 | 陈露露 | A kind of vehicle boot lid fatigue experimental device |
| CN110302971A (en) * | 2019-08-02 | 2019-10-08 | 长兴新亚环保机械科技有限公司 | A kind of vehicle component automatic checkout equipment |
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2014
- 2014-10-29 CN CN201410590205.XA patent/CN104296987B/en not_active Expired - Fee Related
Patent Citations (7)
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| KR20020022971A (en) * | 2000-09-21 | 2002-03-28 | 이계안 | Device for testing durability of hood lever for vehicle |
| US20040261548A1 (en) * | 2003-06-26 | 2004-12-30 | Shea Robert E. | Fixture for hood slam simulation |
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Non-Patent Citations (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836063A (en) * | 2017-04-05 | 2017-06-13 | 刘发良 | Berth lock with torsion spring bascule |
| CN107479416A (en) * | 2017-08-21 | 2017-12-15 | 天津航天瑞莱科技有限公司 | A kind of universal fatigue experiment control system |
| CN107560841A (en) * | 2017-10-10 | 2018-01-09 | 陈露露 | A kind of vehicle boot lid fatigue experimental device |
| CN110302971A (en) * | 2019-08-02 | 2019-10-08 | 长兴新亚环保机械科技有限公司 | A kind of vehicle component automatic checkout equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104296987B (en) | 2017-02-01 |
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Address after: 200235 Xuhui District, Caobao Road, No. 120, Applicant after: Shanghai Institute of Technology Address before: 200235 Xuhui District, Caobao Road, No. 120, Applicant before: Shanghai Institute of Technology |
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Inventor after: Huang Qun Inventor after: Lu Baokang Inventor after: Huang Biao Inventor after: Zhang Yunlong Inventor before: Lu Baokang Inventor before: Huang Biao Inventor before: Zhang Yunlong |
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