TWI453405B - Drop test device - Google Patents

Description

Drop test device

The invention relates to a drop test device.

Small consumer electronics such as mobile phones, digital cameras, MP3 players, and Personal Digital Assistants (PDAs) generally require a drop test to perform a rigid strength test on such electronic products. In order to improve the test efficiency, the drop test device is usually used for testing.

A drop test device includes a base, a bracket, a drop table, and an orientation clamp. The bracket is fixed substantially perpendicularly to the base. The drop table is movably mounted on the bracket and is a frame structure. The orientation fixture is fixed to the drop table. When the test piece is subjected to the drop test, the height of the drop table is first adjusted as needed. Then, the detecting piece is held by the orientation jig, and finally, the jig is loosened, and the detecting piece is dropped from the drop table.

However, the above-described drop test device needs to re-clamp the detecting member in the orientation jig again after each test, which makes it difficult to perform continuous plural test.

In view of the above, it is necessary to provide a drop test device that can be continuously tested in multiple numbers.

A drop test device for performing a drop test on a test piece, the drop test device comprising a base, a fixing bracket fixed on the base, a first driving member fixed on the fixing bracket, and a sliding bracket fixedly connected to the first driving member The sliding bracket is provided with a lifting arm, and the base is provided with a positioning member, and the first driving member drives the sliding bracket to slide the sliding bracket relative to the fixing bracket, so that one end of the detecting member is lifted, and the other end and the positioning member are Resist.

The sliding bracket of the above-mentioned drop test device is provided with a lifting arm, and the positioning member is arranged on the base, so that one end of the detecting member is lifted by the lifting arm, and is still in the original position after the falling, so that the drop test device continuously performs the detecting member. Plural test.

The drop test apparatus of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 and FIG. 2 , the drop test apparatus 100 of the preferred embodiment of the present invention includes a base 20 , a fixed bracket 30 , a lifting mechanism 40 , a first control member 50 , two reset mechanisms 60 , and a second control . A piece 70 and an operating platform 80.

The fixing bracket 30 is fixed to the base 20 substantially vertically. The lifting mechanism 40 is fixed to the fixing bracket 30. The two reset mechanisms 60 are disposed on opposite sides of the base 20. The first control member 50 and the second control member 70 are respectively fixed to the opposite ends of the base 20 . The operating platform 80 is fixed to the other opposite side of the base 20. The first control member 50 is for controlling the lifting mechanism 40, and the second control member 70 is for controlling the reset mechanism 60. The operating platform 80 is used to control the first control member 50 and the second control member 70.

Referring to FIG. 3 , the base 20 includes a base plate 21 , a carrier plate 23 , and a plurality of positioning members 25 . One end of the substrate 21 is provided with a receiving groove 213 which is parallel to each other. The carrier plate 23 is fixed on the substrate 21, and one end of the second limiting notch 231 is defined at one end thereof. The limit notch 231 corresponds to the receiving groove 213 of the substrate 21 . The positioning member 25 is fixed to the substrate 21 and is close to the periphery of the carrier plate 23. Specifically, in the embodiment, the positioning member 25 is a positioning post disposed near the edge of the carrier plate 23, and the number thereof is six.

Referring to FIG. 4 , the fixing bracket 30 includes a supporting member 31 , two first limiting members 32 , a guiding member 34 , two second limiting members 35 , a connecting member 36 and two buffering members 37 .

The support member 31 is fixed substantially perpendicularly to the substrate 21 of the base 20. The support member 31 is a plate body which is provided with two spaced-apart slots 312. Each of the sliding slots 312 extends from one end of the support member 31 and the base plate 21 of the base 20 to the middle of the support member 31 to form two first connecting portions 313 and a second connection at a position intermediate the two first connecting portions 313. Part 315.

The two first limiting members 32 are fixedly connected to the two first connecting portions 313 of the support member 31 respectively. The guide member 34 is fixed to the second connecting portion 315 of the support member 31. The guide member 34 has an elongated shape and is formed with a dovetail type guide rail 341 extending in the longitudinal direction thereof. The second limiting members 35 are fixed on the second connecting portion 315 of the support member 31 and are respectively located at two ends of the guiding member 34.

The connecting member 36 is fixed to one end of the support member 31 away from the sliding slot 312. The connecting member 36 includes a first fixing portion 361 and a second fixing portion 363 perpendicularly connected to one end of the first fixing portion 361. The first fixing portion 361 is fixed to the support member 31. The second fixing portion 363 extends away from one end of the first fixing portion 361 and has two protrusions 3631 spaced apart from each other.

Each buffer member 37 includes a fixing post 371 and a cushion 373 sleeved at one end of the fixing post 371. The fixing post 371 is disposed away from the protrusion 3631 of the connecting member 36 away from one end of the cushion 373.

Referring to FIG. 5, the lifting mechanism 40 includes a first driving member 41, a sliding bracket 43, a slider 44, and a stroke adjusting member 45.

In the present embodiment, the first driving member 41 is a telescopic cylinder having a telescopic rod 412.

The sliding bracket 43 includes a body 431, two lifting arms 432, two rotating shafts 434, and two rollers 435. The two lifting arms 432 are bent and extended from one end of the body 431 toward the same side of the body. Each of the rotating shafts 434 is fixed to the free end of the lifting arm 432. Each roller 435 is rotatably sleeved on the rotating shaft 434. In the present embodiment, the roller 435 is a rubber roller.

The slider 44 is fixed to the body 431 of the slide bracket 43 near one side of the lift arm 432. A sliding slot 441 is defined in the sliding member 44. In the present embodiment, the chute 441 is a dovetail type chute.

The stroke adjusting member 45 includes a fixing post 451 and a sleeve 452 fixed to one end of the fixing post 451. The fixing post 451 is fixed to the base plate 21 of the base 20. The telescopic rod 412 of the first driving member 41 is received in the sleeve 452.

Referring to FIG. 6 , the reset mechanism 60 includes a fixing member 61 , a connecting member 63 , a second driving member 65 , and a resisting member 66 . Both ends of the connecting member 63 are fixedly connected to the fixing member 61 and the second driving member 65, respectively. In the present embodiment, the second driving member 65 is a driving cylinder having a drive shaft 651. The receiving member 66 defines a receiving groove 661 for receiving the end of the second driving member 65. The drive shaft 651 is fixed to the bottom of the receiving groove 661.

In the embodiment, the first control member 50 and the second control member 70 are both electromagnetic valves, and the operating platform 80 is a controller having a display screen.

Referring to FIG. 1 to FIG. 6 together, when assembling the drop test device 100, first, the support member 31 of the fixing bracket 30 is fixed substantially perpendicularly to one end of the substrate 21 of the base 20. Then, the first driving member 41 of the lifting mechanism 40 is fixed to one end of the support member 31 of the fixing bracket 30 away from the base 20. The guide rail 341 of the guide member 34 of the fixing bracket 30 is received in the sliding groove 441 of the slider 44 of the lifting mechanism 40. The fixing post 451 of the stroke adjusting member 45 of the lifting mechanism 40 is fixed on the base plate 21 of the base 20, and the telescopic rod 412 of the first driving member 41 is received in the sleeve 452 of the stroke adjusting member 45. The body 431 of the sliding bracket 43 slides between the two first limiting members 32 of the fixing bracket 30. The lifting arm 432 of the sliding bracket 43 can be received in the receiving groove 213 of the base plate 21 of the base 20 and the limiting notch 231 of the carrying plate. Next, the first control member 50 is fixed to the substrate 21 of the base 20 and electrically connected to the first driving member 41 of the lifting mechanism 40. Next, the second control member 70 is fixed to the substrate 21 of the base 20 and electrically connected to the second driving member 65 of the reset mechanism 60. Finally, the operating platform 80 is fixed to the substrate 21 of the base 20 and electrically connected to the first control member 50 and the second control member 70.

When the detecting member 10 is subjected to the drop test, first, one end of the detecting member 10 is placed on the carrying plate 23 of the base 20, and is abutted against the positioning member 25, and the other end is placed on the lifting arm of the sliding bracket 43 of the lifting mechanism 40. On 432. Then, the control parameters of the test, such as the number of tests, the frequency, and the like, are set on the operating platform 80.

The sliding bracket 43 of the drop test device 100 of the present invention is provided with a lifting arm 432. The base 20 is provided with a positioning member 25, so that one end of the detecting member 10 is lifted by the lifting arm 432, and is still in the original position after falling, thereby The drop test apparatus 100 performs a continuous plural test on the detecting member 10.

The fixing bracket 30 is provided with a cushioning member 37 for abutting against the cushioning member 37 when the sliding bracket 43 is slid, so that the sliding bracket 43 smoothly slides back and forth. The lifting arm 432 of the sliding bracket 43 is provided with a roller 435, which converts the sliding friction between the lifting arm 432 and the detecting member 10 into rolling friction, and reduces the frictional force to prevent the detecting member 10 from being worn. The stroke adjusting member 45 adjusts the stroke of the movement of the slide bracket 43 according to the height of the test. The reset mechanism 60 can further position the detecting member 10 to improve the test accuracy.

It can be understood that the first control member 50 and the second control member 70 can be omitted. At this time, the first driving member 41 of the lifting mechanism 40 and the second driving member 65 of the reset mechanism 60 are controlled by the operating platform 80. The number of the lifting arms 432 of the sliding bracket 43 may be one or two or more.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧Test pieces

20‧‧‧Base

21‧‧‧Substrate

213‧‧‧ housing trough

23‧‧‧Loading board

231‧‧‧ Limit gap

25‧‧‧ Positioning parts

30‧‧‧Fixed bracket

31‧‧‧Support

312‧‧ ‧ chute

313‧‧‧ First connection

315‧‧‧Second connection

32‧‧‧First limiter

34‧‧‧ Guides

341‧‧‧rails

35‧‧‧second limiter

36‧‧‧Connecting parts

361‧‧‧First Fixed Department

363‧‧‧Second fixed department

3631‧‧‧ Protrusion

37‧‧‧ cushioning parts

371‧‧‧Fixed column

373‧‧‧ cushion

40‧‧‧ Lifting mechanism

41‧‧‧First drive

412‧‧‧ Telescopic rod

43‧‧‧Sliding bracket

431‧‧‧ Ontology

432‧‧‧ Lifting the arm

434‧‧‧ shaft

435‧‧‧Roller

44‧‧‧Sliding parts

441‧‧‧Chute

45‧‧‧Travel adjustment parts

451‧‧‧Fixed column

452‧‧ ‧ sleeve

50‧‧‧First control

60‧‧‧Reset mechanism

61‧‧‧Fixed parts

63‧‧‧Connecting parts

65‧‧‧second drive

651‧‧‧ drive shaft

66‧‧‧Resistance

661‧‧‧ receiving trough

70‧‧‧Second control

80‧‧‧Operation platform

100‧‧‧Drop test device

1 is a perspective view of a drop test device of the present invention, the drop test device including a base, a fixed bracket, a lifting mechanism, and a reset mechanism.

Figure 2 is a partially exploded view of the drop test apparatus shown in Figure 1.

Fig. 3 is an enlarged exploded perspective view showing the base of the drop test device shown in Fig. 1.

4 is an enlarged exploded perspective view of the fixing bracket of the drop test device shown in FIG. 1.

Fig. 5 is an enlarged exploded perspective view showing the elevating mechanism of the drop test device shown in Fig. 1.

Fig. 6 is an enlarged exploded perspective view showing the repositioning mechanism of the drop test device shown in Fig. 1.

10‧‧‧Test pieces

20‧‧‧Base

30‧‧‧Fixed bracket

40‧‧‧ Lifting mechanism

50‧‧‧First control

60‧‧‧Reset mechanism

70‧‧‧Second control

80‧‧‧Operation platform

100‧‧‧Drop test device

Claims (10)

A drop test device for performing a drop test on a test piece, the drop test device comprising a base and a fixing bracket fixed to the base, wherein the drop test device further comprises a first fixed on the fixed bracket a driving member and a sliding bracket fixedly coupled to the first driving member, the sliding bracket is provided with a lifting arm, the base is provided with a positioning member, and the first driving member drives the sliding bracket to make the sliding bracket relative to the sliding bracket The fixing bracket is slidable such that one end of the detecting member is lifted and the other end is abutted against the positioning member. The drop test device of claim 1, wherein the free end of the lifting arm is provided with a roller. The drop test device of claim 1, wherein the base comprises a substrate and a carrier plate fixed to the substrate, the positioning member being fixed on the substrate and adjacent to the edge of the carrier plate. The drop test device of claim 3, wherein the substrate is provided with a receiving slot for receiving the lifting arm, and the carrying plate is provided with a limiting notch for receiving the lifting arm. The drop test device of claim 3, wherein the positioning member is a positioning post disposed adjacent to an edge of the carrier plate. The drop test device of claim 3, wherein the fixing bracket comprises a support member fixed substantially perpendicularly to the substrate and a guide member fixed to the support member, the slide bracket being provided with respect to the guide Sliding slider. The drop test device of claim 6, wherein the fixing bracket further comprises a buffer member fixed to the support member and abutting the sliding bracket. The drop test device of claim 6, wherein the sliding member is provided with a sliding slot, and the guiding member is provided with a guiding rail extending along the longitudinal direction thereof and cooperating with the sliding slot. The drop test device of claim 3, wherein the drop test device further comprises two reset mechanisms fixed on the substrate and located on opposite sides of the carrier plate. The drop test device of claim 9, wherein each reset mechanism comprises a resisting member and a second driving member for driving the resisting member.