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A drop test device

A technology of testing device and fixing device, applied in the direction of measuring device, impact test, machine/structural component testing, etc. The effect of accuracy

Inactive Publication Date: 2010-06-16
YITUO SCI & TECH CO LTD SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A problem with the existing method is that when a small item such as a mobile hard disk is dropped from a height, the mobile hard disk will be deflected, so that the required impact force data cannot be accurately obtained
The offset and deflection during the drop will cause the gravity line of the mobile hard disk to be tested to deviate from the tested surface, line or point, resulting in inaccurate data collection

Method used

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Examples

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Embodiment Construction

[0021] Such as figure 1 with figure 2 A drop test device for a mobile hard disk is shown, including a base 7, a support beam 14, a benchmark 5, a control cabinet 11, a fixture 2, a fixing device, a buffer device, an induction switch 8, a backing plate 6, and an object placement table 4 , rollers 15 and supporting feet 16, the fixing device includes a fixed base 12 and an electromagnet 13, and the buffering device includes a spring buffer 8 fixed on the base 7.

[0022] The supporting beam 14 is arranged in parallel with the pole 5, and is vertically fixed on the base 7 through bolt connection. The bottom of the base 7 is provided with four supporting feet 16 and four rollers 15. During the test, the supporting feet 16 prop up the entire testing device, and the level of the base can be adjusted by rotating each supporting foot 7. After the supporting feet 16 are retracted, the test device can be supported and moved by the rollers 15 .

[0023] The support beam 14 is provide...

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Abstract

The invention discloses a drop test device, which comprises a support beam and a base. A clamp is arranged on the support beam and comprises a clamping part. The clamping part is used for clamping an object to be tested and provided with a control module which is used for controlling the action of the clamping part. A base is positioned below the clamp so that the tested object drops on the base after falling from the clamp. The drop test device is characterized in that the support beam is provided with a slide rail vertically, the clamp is provided with a slide seat matched with a slide rail. The support beam is further provided with a fixture for fixing the clamp at a special position of the slide rail in the initial test state. The support beam is further provided with a sensitive switch for sensing the position of the clamp on the slide rail and outputting a position signal to the control module. The drop test device of the invention can guarantee the object to be tested not to shift in most process of the dropping, can enhance the test accuracy, and is suitable for the drop test of finished hard disks during the manufacturing of the mobile hard disks.

Description

technical field [0001] The invention relates to a drop test device. Background technique [0002] In the production process of the mobile hard disk, it is necessary to test the protection ability of the shockproof device inside the mobile hard disk to the hard disk core. Generally, the hard disk is dropped on a special test bench. In the existing hard disk drop test device, the hard disk is generally dropped freely from a certain height, and the impact force when the hard disk falls to the ground is collected by a sensor connected to the mobile hard disk. A problem existing in the existing method is: for a small item such as a mobile hard disk, when dropped from a height, the mobile hard disk will be deflected, so that the required impact force data cannot be accurately obtained. For example, in the surface drop test, the angle between the drop surface of the mobile hard disk and the horizontal plane may be greater than the allowable value of the test standard; in the edge ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08
Inventor 李源海聂贻孝
Owner YITUO SCI & TECH CO LTD SHENZHEN
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