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Worksurfaces for highly accelerated life testing and stress screening equipment

A work surface, life test technology, applied in vibration testing, testing of machine/structural components, measuring devices, etc., to achieve the effect of improving bearing capacity, reducing mass, and increasing the maximum vibration level

Active Publication Date: 2016-02-24
SUZHOU SUSHI TESTING INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a working table for highly accelerated life test and stress screening equipment, the purpose of which is to solve the problems existing in the transmission of vibration acceleration of the working table with the existing hollow structure design

Method used

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  • Worksurfaces for highly accelerated life testing and stress screening equipment
  • Worksurfaces for highly accelerated life testing and stress screening equipment
  • Worksurfaces for highly accelerated life testing and stress screening equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: A workbench for highly accelerated life testing and stress screening equipment

[0048] Figure 3~5 A vibrating device composed of a worktable 1 , a vibrator 2 and a supporting spring 3 according to the embodiment of the present invention is given. If the vibrating device is placed at the bottom of a temperature-controlled box, it constitutes a highly accelerated life test and stress screening device. Wherein, the vibrator 2 can be an electromagnetic vibrator or a pneumatic vibrator, and the support spring 3 is used to support the weight of the test object, the working table 1 and the vibrator 2 . In order to highlight the subject of the invention, the following focuses on the detailed description of the work surface 1:

[0049] In this embodiment, the working surface 1 is a square in the top view state, and in the side view state, it is composed of three layers stacked from top to bottom and then fixed with bolts, wherein the first layer is the loading lay...

Embodiment 2

[0054] Embodiment 2: A working table for highly accelerated life test and stress screening equipment

[0055] The difference between this embodiment and the first embodiment lies in that the design of the connecting ribs on the excitation layer 6 is different. The rest of the structure and content are the same as in Embodiment 1.

[0056] Such as Figure 15 As shown, the connecting ribs on the exciting layer 6 in this embodiment are composed of radial connecting ribs arranged radially along the plane of the exciting layer 6 and circumferential connecting ribs arranged circumferentially along the plane of the exciting layer 6; a 3×3 matrix The three excitation seats 9 in the second row and the outer frame 7 are integrally connected through the first radial connecting rib 10; the three exciting seats 9 and the outer frame 7 in the second row of the 3×3 matrix are connected through the second radial connecting rib 11 integrally connected; the three excitation seats 9 in the fir...

Embodiment 3

[0057] Embodiment 3: A working table for highly accelerated life test and stress screening equipment

[0058] The difference between this embodiment and the first embodiment lies in that the design of the connecting ribs on the excitation layer 6 is different. The rest of the structure and content are the same as in Embodiment 1.

[0059] Such as Figure 16 As shown, the connecting ribs on the exciting layer 6 in this embodiment are composed of radial connecting ribs arranged radially along the plane of the exciting layer 6 and circumferential connecting ribs arranged circumferentially along the plane of the exciting layer 6; a 3×3 matrix The three excitation seats 9 in the second row and the outer frame 7 are integrally connected through the first radial connecting rib 10; the three exciting seats 9 and the outer frame 7 in the second row of the 3×3 matrix are connected through the second radial connecting rib 11 integrally connected; the three excitation seats 9 in the fir...

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Abstract

A work surface for a highly accelerated life test and a stress screening device is characterized that the work surface is from top to bottom sequentially formed by a loading layer (4), a thermal insulating layer (5) and a vibrating layer (6) in a overlapping and fixing mode, the loading layer and the thermal insulating layer are all in a whole plate structure, the vibrating layer is in a frame type planar hollow structure which is composed of an outer frame (7), four spring seats (8), a plurality of vibrating seats (9) and a connecting rib, the outer frame (7) is a square frame body, the four spring seats (8) are distributed at four corners of the square frame body, and the plurality of vibrating seats (9) are evenly distributed and connected with the spring seats (8) to form a whole. By adopting a design of the frame type planar hollow structure on the vibrating layer, based on reducing quality and keeping rigidity, the work surface for the highly accelerated life test and the stress screening device effectively solves the problems of evenly transferring high frequency vibration acceleration by adopting symmetry principles in different directions.

Description

technical field [0001] The present invention relates to mechanical environment test equipment, in particular to a three-axis six-degree-of-freedom working table (also known as "vibrating table" or "table" for short) that provides repeated impact characteristics. A set of vibrator (electromagnetic vibrator or pneumatic vibrator) is installed on the bottom of the workbench to form a vibrating device, and then this vibrating device is placed at the bottom of a temperature control box to form a high-accelerated life test and stress test. Filter devices. Background technique [0002] Highly accelerated life test and stress screening equipment is a kind of mechanical environment test equipment used to investigate product design and manufacturing defects. It is mainly used to investigate the impact of vibration and temperature changes on electronic products during transportation, storage, and use. Among them, the highly accelerated life test is used to investigate the design defec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/06
Inventor 朱荣华黄晓光
Owner SUZHOU SUSHI TESTING INSTR CO LTD