CN102207421A

CN102207421A - Falling test device

Info

Publication number: CN102207421A
Application number: CN2010101345171A
Authority: CN
Inventors: 黄登聪; 余国俊; 胡永兵; 尚战
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2010-03-29
Filing date: 2010-03-29
Publication date: 2011-10-05
Anticipated expiration: 2030-03-29
Also published as: CN102207421B

Abstract

The invention discloses a falling test device, which is used for the falling test of a detected piece and comprises a base, a fixed bracket fixed on the base, a first driving member fixed on the fixed bracket and a sliding bracket fixedly connected with the first driving member, wherein the sliding bracket is provided with a lifting arm, the base is provided with a positioning member, the first driving member drives the sliding bracket to slide in relation to the fixed bracket so that one end of the detected piece is lifted while the other end abuts against the positioning member. The sliding bracket of the above falling test device is provided with the lifting arm, and the base is provided with the positioning member, thus one end of the detected piece is lifted by the lifting arm and still remains at the original position after falling, as a result, a plurality of continuous tests are performed on the detected piece by the falling test device.

Description

Drop test device

Technical field

The present invention relates to a kind of drop test device.

Background technology

Mobile phone, digital camera, MP3 player, personal digital aid (PDA) small-sized consumption electronic products such as (Personal DigitalAssistant are called for short PDA) generally need carry out drop test, detect these electronic products are carried out stiffness.In order to improve testing efficiency, adopt drop test device to test usually.

A kind of drop test device, it comprises base, support, dropping table and directed anchor clamps.Support substantially vertically is fixed on the base.Dropping table is installed on this support versatilely, and it is a frame structure.Directed anchor clamps are fixed on the dropping table.When detection piece is carried out drop test, regulate the height of dropping table at first as required, then, adopt directed anchor clamps clamping detection piece, last, unclamp anchor clamps, detection piece is dropped down from dropping table.

Yet above-mentioned drop test device needs once more detection piece to be held in these orientation anchor clamps again after each the detection, and it is difficult to repeatedly follow-on test.

Summary of the invention

In view of above-mentioned condition, be necessary to provide a kind of drop test device of repeatedly follow-on test.

A kind of drop test device, it is used for detection piece is carried out drop test, drop test device comprises base, is fixed in the fixed support on the base, the sliding support that is fixed in first actuator on the fixed support and fixedlys connected with first actuator, sliding support is provided with and lifts arm, base is provided with keeper, and first actuator drives sliding support, makes sliding support with respect to fixed support slidably, thereby an end of detection piece is lifted, and the other end and keeper offset.

The sliding support of above-mentioned drop test device is provided with and lifts arm, and base is provided with keeper, makes an end of detection piece be lifted arm and lifts, and still is in the original position after falling, thereby makes drop test device carry out repeatedly follow-on test to detection piece.

Description of drawings

Fig. 1 is the stereographic map of drop test device of the present invention, and this drop test device comprises base, fixed support, elevating mechanism and resetting-mechanism.

Fig. 2 is the partial exploded view of drop test device shown in Figure 1.

Fig. 3 is the amplification exploded perspective view of the base of drop test device shown in Figure 1.

Fig. 4 is the support bracket fastened amplification exploded perspective view of drop test device shown in Figure 1.

Fig. 5 is the amplification exploded perspective view of the elevating mechanism of drop test device shown in Figure 1.

Fig. 6 is the amplification exploded perspective view of the resetting-mechanism of drop test device shown in Figure 1.

The main element symbol description

Detection piece

10

Base	20
		Substrate	21
Accepting groove	213
		Loading plate	23
Spacing breach	231
		Keeper	25
Fixed support	30
		Support member	31
Chute	312
		First connecting portion	313
Second connecting portion	315
		First locating part	32
Guide	34
		Guide rail	341
Second locating part	35
		Web member	36
First fixed part	361
		Second fixed part	363
Projection	3631
		Bolster	37
Fixed leg	371
		Cushion pad	373
Elevating mechanism	40
		First actuator	41

Expansion link	412
		Sliding support	43
Body	431
		Lift arm	432
Rotating shaft	434
		Roller	435
Sliding part	44
		Chute	441
The stroke adjustment part	45
		Fixed leg	451
Sleeve	452
		First control piece	50
Resetting-mechanism	60
		Fixture	61
Web member	63
		Second actuator	65
Driving shaft	651
		Supporting piece	66
Accepting groove	661
		Second control piece	70
Operating platform	80
		Drop test device	100

Embodiment

Below in conjunction with drawings and the embodiments drop test device of the present invention is described in further detail.

See also Fig. 1 and Fig. 2, the drop test device 100 of better embodiment of the present invention comprises a base 20, fixed support 30, elevating mechanism 40, one first control piece 50, two resetting-mechanisms 60, second control piece 70 and an operating platform 80.

Fixed support 30 substantially vertically is fixed on the base 20.Elevating mechanism 40 is fixed on the fixed support 30.Two resetting-mechanisms 60 are located at the relative both sides of base 20.First control piece 50 and second control piece 70 are individually fixed on the two ends, the same side of base 20.Operating platform 80 is fixed in another opposite side of base 20.First control piece 50 is used to control elevating mechanism 40, the second control pieces 70 and is used to control resetting-mechanism 60.Operating platform 80 is used to control first control piece 50 and second control piece 70.

See also Fig. 3, base 20 comprises a substrate 21, a loading plate 23 and an a plurality of keeper 25.One end of substrate 21 offers and connects an accepting groove 213 that is parallel to each other.Loading plate 23 is fixed on the substrate 21, and the one end offers two spacing breach 231 that are parallel to each other.Spacing breach 231 is corresponding with the accepting groove 213 of substrate 21.Keeper 25 is fixed on the substrate 21, and the periphery of close loading plate 23.Specifically in the present embodiment, keeper 25 is that its quantity is 6 near the reference column of the edge setting of loading plate 23.

See also Fig. 4, fixed support 30 comprises a support member 31, two first locating parts 32, guide 34, two second locating parts 35, web member 36 and two bolsters 37.

Support member 31 substantially vertically is fixed on the substrate 21 of base 20.Support member 31 is plate body, and it offers two chutes 312 that are provided with at interval.The end that each chute 312 links to each other with the substrate 21 of base 20 from support member 31 extends to the middle part of support member 31, to form two first connecting portions 313 and second connecting portion 315 that is positioned at these two first connecting portion 313 centre positions.

Two first locating parts 32 are fixedlyed connected with two first connecting portions 313 of support member 31 respectively.Guide 34 is fixed on second connecting portion 315 of support member 31.Guide 34 is a strip, and it is formed with along the guide rail 341 of the dove-tail form of its length direction extension.Two second locating parts 35 are fixed on second connecting portion 315 of support member 31, and lay respectively at the two ends of guide 34.

Web member 36 is fixed in the end of support member 31 away from chute 312.Web member 36 comprise first fixed part 361 and with vertical second fixed part 363 that links to each other of an end of this first fixed part 361.First fixed part 361 is fixed on the support member 31.Second fixed part 363 is extended with two projections 3631 of space away from an end of first fixed part 361.

Each bolster 37 comprises fixed leg 371 and is sheathed on the cushion pad 373 of fixed leg 371 1 ends.Fixed leg 371 wears the projection 3631 of web member 36 away from an end of cushion pad 373.

See also Fig. 5, elevating mechanism 40 comprises first actuator 41, sliding support 43, sliding part 44 and stroke adjustment part 45.

In the present embodiment, first actuator 41 is a telescopic cylinder, and it has expansion link 412.

Sliding support 43 comprises that a body 431, two lift arm 432, two rotating shafts 434, two rollers 435.Two lift arm 432 from an end of body 431 towards body the same side bending extend.The free end that lifts arm 432 is fixed in each rotating shaft 434.Each roller 435 is sheathed in the rotating shaft 434 rotationally.In the present embodiment, roller 435 is a rubber roll.

Sliding part 44 is fixed in the body 431 of sliding support 43 near a side of lifting arm 432.Offer chute 441 on the sliding part 44.In the present embodiment, chute 441 is the chute of dove-tail form.

Stroke adjustment part 45 comprises fixed leg 451 and is fixed in the sleeve 452 of fixed leg 451 1 ends.Fixed leg 451 is fixed on the substrate 21 of base 20.The expansion link 412 of first actuator 41 is contained in the sleeve 452.

See also Fig. 6, resetting-mechanism 60 comprises fixture 61, web member 63, second actuator 65 and supporting piece 66.The two ends of web member 63 are the fixedly connected fixture 61 and second actuator 65 respectively.In the present embodiment, second actuator 65 is for driving cylinder, and it has driving shaft 651.Offer the accepting groove 661 of accommodating second actuator, 65 ends on the supporting piece 66.Driving shaft 651 is fixed in the bottom of accepting groove 661.

In this way of example, first control piece 50 and second control piece 70 are solenoid valve, and operating platform 80 is for having the controller of display screen.

See also Fig. 1 to Fig. 6, during assembling drop test device 100, at first, the support member 31 of fixed support 30 substantially vertically is fixed in substrate 21 1 ends of base 20.Then, first actuator 41 of elevating mechanism 40 is fixed in the end of the support member 31 of fixed support 30 away from base 20.The guide rail 341 of the guide 34 of fixed support 30 is contained in the chute 441 of sliding part 44 of elevating mechanism 40.The fixed leg 451 of the stroke adjustment part 45 of elevating mechanism 40 is fixed on the substrate 21 of base 20, and the expansion link 412 of first actuator 41 is contained in the sleeve 452 of stroke adjustment part 45.The body 431 of sliding support 43 slides between two first locating parts 32 of fixed support 30.Lifting in the spacing breach 231 that arm 432 can be contained in the accepting groove 213 of substrate 21 of base 20 and loading plate of sliding support 43.Then, first control piece 50 is fixed on the substrate 21 of base 20, and is electrically connected with first actuator 41 of elevating mechanism 40.Then, second control piece 70 is fixed on the substrate 21 of base 20, and is electrically connected with second actuator 65 of resetting-mechanism 60.At last, operating platform 80 is fixed on the substrate 21 of base 20, and is electrically connected with first control piece 50 and second control piece 70.

When detection piece 10 is carried out drop test, at first, an end of detection piece 10 is positioned on the loading plate 23 of base 20, and offsets with keeper 25, the other end is positioned over the lifting on the arm 432 of sliding support 43 of elevating mechanism 40.Then, on operating platform 80, set the controlled variable of test, for example Ce Shi number of times, frequency etc.

The sliding support 43 of drop test device 100 of the present invention is provided with and lifts arm 432, base 20 is provided with keeper 25, make an end of detection piece 10 be lifted arm 432 and lift, still be in the original position after falling, thereby make 100 pairs of detection pieces of drop test device 10 carry out repeatedly follow-on test.

Fixed support 30 is provided with bolster 37, makes sliding support 43 when sliding, and can offset with bolster 37, slides thereby sliding support 43 is come and gone stably.The arm 432 that lifts of sliding support 43 is provided with roller 435, makes the sliding friction of lifting between arm 432 and the detection piece 10 be converted to rolling friction, reduces friction, in order to avoid abrasion detection part 10.Stroke adjustment part 45 can be regulated the stroke of sliding support 43 motions according to the difference of the height of testing.Resetting-mechanism 60 can position detection piece 10 further, thereby improves measuring accuracy.

Be appreciated that first control piece 50 and second control piece 70 all can omit, at this moment, by first actuator 41 of operating platform 80 control elevating mechanisms 40 and second actuator 65 of resetting-mechanism 60.The number of lifting arm 432 of sliding support 43 can be one or more.

In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included in the present invention's scope required for protection.

Claims

1. drop test device, it is used for detection piece is carried out drop test, this drop test device comprises base and is fixed in fixed support on this base, it is characterized in that: this drop test device also comprises first actuator that is fixed on this fixed support and the sliding support of fixedlying connected with this first actuator, this sliding support is provided with and lifts arm, this base is provided with keeper, this first actuator drives this sliding support, make this sliding support slidably with respect to this fixed support, thereby an end of this detection piece is lifted, and the other end and this keeper offset.

2. drop test device as claimed in claim 1 is characterized in that: this free end that lifts arm is provided with roller.

3. drop test device as claimed in claim 1 is characterized in that: this base comprises substrate and is fixed in loading plate on this substrate, and this keeper is fixed on this substrate and near this loading plate edge.

4. drop test device as claimed in claim 3 is characterized in that: offer on this substrate and accommodate the accepting groove that this lifts arm, offer on this loading plate and accommodate the spacing breach that this lifts arm.

5. drop test device as claimed in claim 3 is characterized in that: the reference column that this keeper is provided with for the edge near this loading plate.

6. drop test device as claimed in claim 3 is characterized in that: this fixed support comprises and substantially vertically is fixed in the support member on this substrate and is fixed in guide on this support member that this sliding support is provided with the sliding part that slides with respect to this guide.

7. drop test device as claimed in claim 6 is characterized in that: also comprise the bolster that is fixed on this support member and offsets with this sliding support on this fixed support.

8. drop test device as claimed in claim 6 is characterized in that: offer chute on this sliding part, this guide is provided with the guide rail that extends and match with this chute along its length direction.

9. drop test device as claimed in claim 3 is characterized in that: this drop test device also comprises two resetting-mechanisms that are fixed on this substrate and are positioned at the relative both sides of this loading plate.

10. drop test device as claimed in claim 9 is characterized in that: each resetting-mechanism comprises supporting piece and orders about second actuator of this supporting piece motion.