CN103969016A - Drop test table - Google Patents
Drop test table Download PDFInfo
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- CN103969016A CN103969016A CN201410146806.1A CN201410146806A CN103969016A CN 103969016 A CN103969016 A CN 103969016A CN 201410146806 A CN201410146806 A CN 201410146806A CN 103969016 A CN103969016 A CN 103969016A
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Abstract
The invention provides a drop test table, and belongs to the technical field of shock test equipment. The drop test table is composed of a supporting system, a lifting drop system and a secondary-shock-preventing drop system. The supporting system comprises guide rails (1) and a shock pad (2). The four guide rails (1), an upper drop table surface (21) and a lower drop table surface (22) form a cube to support the whole test table and guarantee the stability and guidance performance. The shock pad (2) is arranged on the bottom of the test table. The lifting drop system comprises a rigid base (3) and a collision plane (4). The top end of the rigid base (3) is of a half-round shape. The collision plane (4) is fixed below a drop table surface (18). The drop test table is good in stability and repeatability. Different shock accelerated speeds can be obtained by adjusting the elevation height of the drop table surface, the test requirements under different conditions can be met, secondary shock is avoided, operation is simple, and a man-made influence factor is small.
Description
Technical field
The present invention only causes falling table top and rigid base shock generation mechanical impact force by acceleration of gravity acting, comprises a kind of device of its parts and joint level welding spot reliability for testing electronic product, relates in particular to a kind of falling test stand.
Background technology
Along with electronic product is toward thin, light, short, little future development, especially the speed updating constantly increases, traditional heat, electricity, magnetic etc. are no longer the major influence factors of electronic product reliability, and in transport or use procedure, because producing macroscopical mechanical impact force to electronic product, accidental fall cause it all likely to produce and lost efficacy to internal circuit solder joint from shell, its life-span is played a decisive role, therefore, for electronic product, be it to be carried out to reliability evaluation become numerous scholars' research direction by drop test.Especially for consumer and production firm, it falls reliability its problem of being concerned about emphatically in purchase and manufacture process especially.
Drop performance test for electronic product comprises Product-level, plate level, joint level.By the fall-down test that repeats, to study its life-span be main method of testing, but its method to drop test of different product, element manufacturer is different.Therefore in order to improve the comparability to its reliability evaluation, JCDEC formulated detailed fall-down test standard in 2003, and test parameters (input acceleration amplitude, duration of pulse etc. while comprising drop impact) is all carried out to clear and definite specification.Not but very not detailed to the description of falling test stand in this standard, only provide the shape of typical drop test device, but for fall-down test, falling test stand stability, easy handling grade is the key factor that determines to fall reliability evaluation and whether have reference value.The equipment that falls that existing market is sold focuses mostly on greatly for the test to packing case, its experiment condition is as acceleration amplitude, duration of pulse etc., JCDEC standard was lower relatively, and expensive, still can not reach the requirement to drop test condition to electronic product, on the other hand, establishing criteria does not have the experiment condition of secondary pulse to be still difficult to reach in falling process, especially for laboratory, the equipment that falls of building voluntarily often has poor stability and repeatability, and artifical influence factor is more, thereby cause evaluation and prediction to falling reliability all can produce very large error.
Summary of the invention
The present invention is that problem to be solved is the technological deficiency for overcoming foregoing description, in the situation that ensureing that drop test requires, designs a kind of novel have good stability and easy handling falling test stand.
A kind of falling test stand, by support system, lifting is fallen system and is fallen anti-secondary pulse system composition; Support system comprises that 1, four guide rail of guide rail 1 forms square with falling upper table surface 21 and fall following table 22, supports whole dropping table, for ensureing its stability and guidance quality; 2, four beams of beam can ensure the stability of whole dropping table of dropping shock moment; Lifting is fallen system and is comprised rigid base 3, collision plane 4, and rigid base 3 tops are semicircle, and collision plane 4 is fixed on falls table top 18 belows, and for increased acceleration amplitude, the stability of table top is fallen in minimizing duration of pulse and guarantee; Cylinder I 5 and cylinder II6, cylinder I 5 and cylinder II6 all have double piston-rod, and piston rod top is I pulley 7, for ensureing to fall the stable rising of table top, decline and being regained and ensured that table top is stable, level is fallen by piston rod moment falling the moment; Graphite guide pin bushing 8, ensures that falling table top 18 is rising along guide rail 1, the lubricity in decline process.Motor 9, II pulley 10, ball-screw 11, motor 9 and ball-screw 11, cylinder I 5 is connected with cylinder II6, thus motor 9 drives ball-screw 11 to rotate control cylinder I5 and cylinder II6 lifting by I pulley 7, metal sensor I12, metal sensor II17, lay respectively at and fall the bracing frame I19 on table top 18 right sides and be positioned on the bracing frame II20 of cylinder I I6 rear side, be screwed on it, make its respectively with fall the distance of table top 18 and the distance of cylinder II6 within its identification range, by parbuckle screw up-down adjustment metal sensor I12, the position of metal sensor II13, metal sensor I12, the PLC(programmable logic controller (PLC) of metal sensor II17 and control desk) be connected, complete recognition function by software programming, making its diverse location determine to fall table top raises, reduce height, thereby obtain different impact accelerations by controlling metal sensor I12 differing heights, control metal sensor II17 differing heights, control cylinder I5 and cylinder II6 reduce height, reduce at the number of operations falling in lifting process.Prevent that secondary pulse system from comprising cylinder I II14 and cylinder IV15, cylinder has double piston-rod, and piston rod top has plastic cement post 16, for ensureing that buffering is fallen table top secondary pulse after dropping shock completes; Metal sensor III13, be connected with PLC equally, be positioned on the bracing frame I19 that falls table top 18 right sides, its diverse location ensures it is that it triggers moment difference, thereby in falling process, the common flexible moment of cylinder I II14 and cylinder IV15 is different, according to different its corresponding height of falling height control, make moment that plastic cement post 16 outreaches and to fall rebound moment of outreaching of table top 18 identical, thereby ensure only to complete one-shot in falling process.
The present invention can obtain following beneficial effect: the present invention falls equipment and has good stability and repeatability, fall the different height that raise of table top by adjusting, can obtain different impact accelerations, can meet the test request under different situations, guarantee does not have secondary pulse, simple to operate, artifical influence factor is low.
Brief description of the drawings
Fig. 1: the overall assembled front view of dropping table;
Fig. 2: dropping table totally assembles right view;
Fig. 3: motor pulley work schematic diagram;
Fig. 4: fall system works composition schematic diagram.
1-guide rail, 2-beam, 3-pedestal, 4-collides plane, 5-cylinder I, 6-cylinder I I, 7-pulley I, 8-graphite guide pin bushing, 9-motor, 10-pulley II, 11-ball-screw, 12-metal sensor I, 13-metal sensor II, 14-cylinder I II, 15-cylinder I V, 16-plastic cement post, 17-metal sensor III, 18 fall table top, 19-bracing frame I, 20-bracing frame II.
Concrete embodiment
Support system comprises four guide rails 1, by being fixedly connected with upper following table, supports whole dropping table framework, and four beams 2, by being fixed on following table, are evenly distributed on the Si Jiaochu of following table, and whole dropping table is played to buffer action.Support system comprises that rigid base 3 is fixed on following table, collision plane 4 is fixed on and falls table top 18 belows, both selects the material that rigidity is strong, in dropping shock process, can produce large impact acceleration, falling jacking system comprises, motor 9, pulley II10 is positioned at and falls upper table surface 21 tops, connect by travelling belt, ball-screw 11 is positioned at and falls table top 20 both sides, be connected with II pulley 10, motor 9 by frequency converter can forward, reversion work can be with travelling block II10 forward, rotate backward, thereby drive ball-screw 11 forwards, reverse operation, cylinder I 5 is fixedly connected with ball-screw 11 with cylinder II6, ball-screw 11 forwards, rotate backward and drive cylinder I 5 and cylinder II6 to rise and decline, cylinder cylinder I5 and cylinder II6 all have double piston-rod, fall its stabilization of table top to supporting, and piston rod top is pulley I7, be fixed on piston rod top, when piston rod stretches out, pulley I7 can stablize, and horizontal support falls table top 18, its lubricity can make expansion link flexible stably, ensures to fall table top 18 horizontal liftings, fall, graphite guide pin bushing 8, is arranged on the junction of falling table top 18 and guide rail 1, ensures that falling table top 18 is rising along guide rail 1, the lubricity in decline process, metal sensor I12, metal sensor II17, lay respectively at and fall the bracing frame I19 on table top 18 right sides and be positioned on the bracing frame II20 of cylinder I I6 rear side, be screwed on it, make its respectively with fall the distance of table top 18 and the distance of cylinder II6 within its identification range, by parbuckle screw up-down adjustment metal sensor I12, the position of metal sensor II13, metal sensor I12, the PLC(programmable logic controller (PLC) of metal sensor II17 and control desk) be connected, complete recognition function by software programming, making its diverse location determine to fall table top raises, reduce height, thereby obtain different impact accelerations by controlling metal sensor I12 differing heights, control metal sensor II17 differing heights, control cylinder I5 and cylinder II6 reduce height, reduce at the number of operations falling in lifting process.Prevent that secondary pulse system from comprising that cylinder I II14 and cylinder IV15 cylinder have double piston-rod, piston rod top has plastic cement post 16, for ensureing that buffering is fallen table top secondary pulse after dropping shock completes; Metal sensor III13, be connected with PLC equally, be positioned on the bracing frame I19 that falls table top 18 right sides, its diverse location ensures it is that it triggers moment difference, thereby in falling process, the common flexible moment of cylinder I II14 and cylinder IV15 is different, according to different its corresponding height of falling height control, make moment that plastic cement post 16 outreaches and to fall rebound moment of outreaching of table top 18 identical, thereby ensure only to complete one-shot in falling process.
Specific works process is: the present invention falls falling process as accompanying drawing 1, 2, 3, shown in 4, ensure under the normal work of power supply, open air compressor, control desk, now fall table top and be positioned at extreme lower position, collision plane 4 is connected with pedestal 3, metal sensor III17 points to cylinder I I6, receive signal, cylinder I I6 piston rod stretches out and falls table top and be connected by pulley I7, start rising button, motor 9 is with travelling block II10 to rotate, thereby drive ball-screw 11 to rotate, cylinder I 5 is fixedly connected with ball-screw 11 with cylinder II6, thereby drive is fallen table top and is risen along guide rail 1, while arriving the position of I metal sensor 12, receive signal, motor 9 quits work, fall table top be elevated to ask in advance height, start and fall button, piston rod is regained from cylinder I 5 and cylinder II6, falling table top falls along guide rail 1, collision plane 4 completes one-shot with pedestal 3, wherein, in the time falling table top 18 and arrive metal sensor II13, receive signal, starting cylinder I V15 piston rod stretches out, thereby ensure and fall table top 18 and complete while rebounding after one-shot and jointly rise, in the time rebounding to peak, plastic cement post 16 arrives its bounce-back position, thereby wherein different bounce-back height can ensure only to complete one-shot by the plastic cement post 16 of changing differing heights, start decline button, motor 9 rotates, thereby drives cylinder I 5 and cylinder II6 to decline, and arrives the position of metal sensor III17, receives signal, and motor quits work, and cylinder I 5 and cylinder II6 piston rod stretch out, and complete dropping shock one time.Wherein on control desk, manually fall mode with automatic two kinds, start hand push button, can complete in a manner described dropping shock one time, start automatic button, dropping table automatic lifting is fallen, and completes a dropping shock as one stroke taking above-mentioned, repeat to fall easy operating.
Claims (1)
1. a falling test stand, is characterized in that: by support system, lifting is fallen system and fallen anti-secondary pulse system composition, support system comprises guide rail (1), four guide rails (1) with fall upper table surface (21) and fall following table (22) form square, support whole dropping table, for ensureing stability and guidance quality, the beam (2) that is positioned at experiment table bottom, four beams can ensure the stability of whole dropping table of dropping shock moment, lifting is fallen system and is comprised rigid base (3), collision plane (4), rigid base (3) top is semicircle, collision plane (4) is fixed on falls table top (18) below, and for increased acceleration amplitude, the stability of table top is fallen in minimizing duration of pulse and guarantee, cylinder I (5) and cylinder II(6), cylinder I (5) and cylinder II(6) all there is double piston-rod, piston rod top is pulley I(7), for ensureing to fall the stable rising of table top, decline and regaining and ensure that table top is stable, level is fallen by piston rod moment falling the moment, graphite guide pin bushing (8), ensures to fall table top (18) and is rising along guide rail (1), the lubricity in decline process, motor (9), II pulley (10), ball-screw (11), motor (9) and ball-screw (11), cylinder I (5) and cylinder II(6) be connected, motor (9) is by pulley I(7) drive ball-screw (11) thereby rotation control cylinder I(5) and cylinder II(6) lifting, metal sensor I(12), metal sensor II(17), lay respectively at the bracing frame I(19 that falls table top (18) right side) and be positioned at cylinder I I(6) the bracing frame II(20 of rear side) on, be screwed, make metal sensor I(12) and metal sensor II(17) respectively with the distance and the cylinder II(6 that fall table top (18)) distance within identification range, by parbuckle screw up-down adjustment metal sensor I(12), metal sensor II(13) position, metal sensor I(12), metal sensor II(1) 7 be connected with the programmable logic controller (PLC) PLC of control desk, making diverse location determine to fall table top raises, reduce height, by controlling metal sensor I(12) thus differing heights obtains different impact accelerations, control metal sensor II(17) differing heights, control cylinder I(5) and cylinder II(6) the high number of degrees reduced.Prevent that secondary pulse system from comprising cylinder I II(14) and cylinder IV(15), cylinder has double piston-rod, and piston rod top has plastic cement post (16), for ensureing that buffering is fallen table top secondary pulse after dropping shock completes; Metal sensor III(13), be connected with PLC equally, be positioned at the bracing frame I(19 that falls table top (18) right side) on, metal sensor III(13) diverse location ensure be trigger moment difference, thereby cylinder I II(14 in falling process) with cylinder IV(15) the common flexible moment different, according to different falling height control height, make moment that plastic cement post (16) outreaches and to fall rebound moment of outreaching of table top (18) identical, thereby ensure only to complete one-shot in falling process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410146806.1A CN103969016B (en) | 2014-04-12 | 2014-04-12 | Drop test table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146806.1A CN103969016B (en) | 2014-04-12 | 2014-04-12 | Drop test table |
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| CN103969016A true CN103969016A (en) | 2014-08-06 |
| CN103969016B CN103969016B (en) | 2017-02-08 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004501A (en) * | 2015-07-27 | 2015-10-28 | 无锡吉兴汽车声学部件科技有限公司 | Dropping impact test platform |
| CN105509989A (en) * | 2016-01-27 | 2016-04-20 | 珠海罗西尼表业有限公司 | Watch drop test device |
| CN106124155A (en) * | 2016-08-31 | 2016-11-16 | 兹韦克测试技术（太仓）有限公司 | A kind of drop hammer impact testing machine |
| CN106706960A (en) * | 2016-12-27 | 2017-05-24 | 浙江吉利汽车研究院有限公司 | Drop test bench used for intermediate checking of acceleration transducer and detection method |
| CN107687929A (en) * | 2017-08-28 | 2018-02-13 | 广东小天才科技有限公司 | A kind of drop test equipment, method and its device |
| CN107966260A (en) * | 2017-11-22 | 2018-04-27 | 珠海万博科学服务有限公司 | A kind of electronic product drop test device |
| CN107991111A (en) * | 2017-12-21 | 2018-05-04 | 芜湖恒隆汽车转向系统有限公司 | Automobile steering system shock table |
| CN108168915A (en) * | 2017-12-21 | 2018-06-15 | 芜湖恒隆汽车转向系统有限公司 | A kind of automobile steering system impact test method |
| CN108168916A (en) * | 2017-12-21 | 2018-06-15 | 芜湖恒隆汽车转向系统有限公司 | A kind of automobile steering system shock table |
| CN108181073A (en) * | 2017-12-21 | 2018-06-19 | 芜湖恒隆汽车转向系统有限公司 | A kind of anti-secondary pulse testing stand of automobile steering system |
| CN108181112A (en) * | 2017-12-21 | 2018-06-19 | 芜湖恒隆汽车转向系统有限公司 | A kind of automobile steering system impact test apparatus |
| CN111413518A (en) * | 2020-05-11 | 2020-07-14 | 苏州笛灵科技有限公司 | Falling body type impact calibration device |
| CN111595702A (en) * | 2020-07-22 | 2020-08-28 | 佛山市公路桥梁工程监测站有限公司 | Secondary-strike-prevention galvanized layer adhesion performance testing device |
| CN111829911A (en) * | 2020-07-14 | 2020-10-27 | 北京建筑材料科学研究总院有限公司 | Performance measuring device for filling leveling layer on floating ground |
| CN111982447A (en) * | 2020-08-04 | 2020-11-24 | 中汽研汽车检验中心（天津）有限公司 | high-G-value half-sinusoidal acceleration crash test bed and test method |
| CN114034457A (en) * | 2021-11-15 | 2022-02-11 | 北京理工大学 | Drum-type impact test device and method for block slot key impact |
| CN114354396A (en) * | 2021-12-29 | 2022-04-15 | 上海交通大学 | Dynamic buckling and ultimate strength testing device for large stiffened plate of ship body under impact load |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004501A (en) * | 2015-07-27 | 2015-10-28 | 无锡吉兴汽车声学部件科技有限公司 | Dropping impact test platform |
| CN105509989A (en) * | 2016-01-27 | 2016-04-20 | 珠海罗西尼表业有限公司 | Watch drop test device |
| CN106124155B (en) * | 2016-08-31 | 2019-09-03 | 兹韦克测试技术（太仓）有限公司 | A kind of drop hammer impact testing machine |
| CN106124155A (en) * | 2016-08-31 | 2016-11-16 | 兹韦克测试技术（太仓）有限公司 | A kind of drop hammer impact testing machine |
| CN106706960A (en) * | 2016-12-27 | 2017-05-24 | 浙江吉利汽车研究院有限公司 | Drop test bench used for intermediate checking of acceleration transducer and detection method |
| CN107687929A (en) * | 2017-08-28 | 2018-02-13 | 广东小天才科技有限公司 | A kind of drop test equipment, method and its device |
| CN107966260B (en) * | 2017-11-22 | 2019-10-22 | 珠海美源智科技有限公司 | A kind of electronic product drop test device |
| CN107966260A (en) * | 2017-11-22 | 2018-04-27 | 珠海万博科学服务有限公司 | A kind of electronic product drop test device |
| CN108168915A (en) * | 2017-12-21 | 2018-06-15 | 芜湖恒隆汽车转向系统有限公司 | A kind of automobile steering system impact test method |
| CN108168916A (en) * | 2017-12-21 | 2018-06-15 | 芜湖恒隆汽车转向系统有限公司 | A kind of automobile steering system shock table |
| CN108181073A (en) * | 2017-12-21 | 2018-06-19 | 芜湖恒隆汽车转向系统有限公司 | A kind of anti-secondary pulse testing stand of automobile steering system |
| CN108181112A (en) * | 2017-12-21 | 2018-06-19 | 芜湖恒隆汽车转向系统有限公司 | A kind of automobile steering system impact test apparatus |
| CN107991111A (en) * | 2017-12-21 | 2018-05-04 | 芜湖恒隆汽车转向系统有限公司 | Automobile steering system shock table |
| CN111413518A (en) * | 2020-05-11 | 2020-07-14 | 苏州笛灵科技有限公司 | Falling body type impact calibration device |
| CN111829911A (en) * | 2020-07-14 | 2020-10-27 | 北京建筑材料科学研究总院有限公司 | Performance measuring device for filling leveling layer on floating ground |
| CN111595702A (en) * | 2020-07-22 | 2020-08-28 | 佛山市公路桥梁工程监测站有限公司 | Secondary-strike-prevention galvanized layer adhesion performance testing device |
| CN111982447A (en) * | 2020-08-04 | 2020-11-24 | 中汽研汽车检验中心（天津）有限公司 | high-G-value half-sinusoidal acceleration crash test bed and test method |
| CN114034457A (en) * | 2021-11-15 | 2022-02-11 | 北京理工大学 | Drum-type impact test device and method for block slot key impact |
| CN114354396A (en) * | 2021-12-29 | 2022-04-15 | 上海交通大学 | Dynamic buckling and ultimate strength testing device for large stiffened plate of ship body under impact load |
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| CN103969016B (en) | 2017-02-08 |
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Effective date of registration: 20210104 Address after: 518116 weiteliao Industrial Park, No.18, Shuitian 1st Road, Tongle community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN VITAL NEW MATERIAL COMPANGY Ltd. Address before: 100124 No. 100 Chaoyang District Ping Tian Park, Beijing Patentee before: Beijing University of Technology |