Pneumatic hydraulic servo horizontal impact tester

Abstract

The invention discloses a pneumatic hydraulic servo horizontal impact tester, which mainly comprises a horizontal linear guide rail and a test bed. The test bed is positioned on the linear guide rail to form a test vehicle structure for the movement of the horizontal linear guide rail. A slide block is arranged at the bottom of the test bed, and the test bed is contacted with the guide rail through the slide block. One side of the test bed along the direction of the linear guide rail is connected with the front end of a piston rod of a transmitting cylinder, and the reverse side of the test bed is connected with the piston rod of a brake hydraulic cylinder. A driving cavity and an air cushion cavity of the transmitting cylinder are connected with a high-pressure air storage tank through apipeline, and the high-pressure air storage tank is connected with a compressor through the pipeline. The braking force control of the tester and the driving force computation of the tester are controlled by an embedded controller, and an upper computer is connected with the embedded controller through the Ethernet. The pneumatic hydraulic servo horizontal impact tester has simple testing form, can improve the intelligence and accuracy of the system, and has the advantages of high precision for simulating impact impulses, high degree of automation, convenient maintenance, and simple operation.

Description

technical field [0001] The invention relates to an impact testing machine, in particular to a gas-liquid servo horizontal impact testing machine. Background technique [0002] The reliability of electronic components and equipment working in shock environments has been paid more and more attention by users. Electronic components, equipment and other electrical and electronic products (hereinafter referred to as samples), the non-repetitive impact effects that these samples may experience during transportation or use. Impact testing may be used as a method of determining the satisfactory design of samples in terms of structural strength, or as a means of quality control. The national standard GB / T2423.5-1995, GB / T 2423.6-1995, international standard IEC 68-2-29 and other standards stipulate that the shock source excitation includes half sine wave, rear peak sawtooth wave and trapezoidal wave. Whether it can withstand the impact. [0003] The development of impact testing m...

AI Technical Summary

Problems solved by technology

The national patent ZL200510041463.3 "Linear Acceleration and Impact Testing Machine" uses the stored tension of the elastic rope as the power of the test vehicle. After repeated tests, the elastic fatigue of the elastic rope will occur, and the elastic coefficient will change, which will affect the test accuracy; The braking force and the positive pulling force of the test vehicle are independent of each other, and no closed-loop control is formed, which also reduces the accuracy of the test results

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