High/low-temperature durable double-door testing machine for measuring automotive water cut long-term compressive load

Abstract

The invention belongs to the technical field of vehicle inspection devices and provides a high / low-temperature durable double-door testing machine for measuring an automotive water cut long-term compressive load. The testing machine comprises a closed box, wherein a testing worktable plate, a lower platform fixture fixing mechanism and an upper platform moving mechanism are respectively arranged in the box; a driving mechanism is arranged on the box; two sealing doors, namely an inner sealing door and an outer sealing door respectively, are arranged in the box; an operating hole is formed in the inner sealing door; a closing membrane is arranged in the operating hole. The high / low-temperature durable double-door testing machine has the advantages that due to the design of double doors, samples can be replaced through the operating hole in the glass door by both hands at high and low temperature under the condition that the temperature is guaranteed, a phenomenon that the test conditions in the test box are influenced by an external environment when the closing membrane is separated from the external environment to replace the samples is avoided, and a phenomenon that the high temperature suddenly drops and the low temperature suddenly rises is avoided. Moreover, water vapor enters the box to be condensed in the process of replacing the samples at low temperature, and the test efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of automobile detection devices, and relates to a double-door testing machine for measuring the high and low temperature durability of automobile water-cut long-term compression load. Background technique [0002] Automobile water cut, that is, the sealing strip of automobile window mainly plays the role of sealing and shock absorption. The performance of automobile water cut needs to be tested before use. Among them, the compression rebound force of automobile water cut is the compression load of automobile water cut. An important indicator of performance, the existing general-purpose automobile water-shear compression elasticity test is carried out on a universal material testing machine. Due to the limitation of testing equipment, the universal material testing machine cannot simulate the water-shearing of automobiles under wet conditions and different temperatures. Changes in the compression load, so the...

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Problems solved by technology

[0002] Automobile water cut, that is, the sealing strip of automobile window mainly plays the role of sealing and shock absorption. The performance of automobile water cut needs to be tested before use. Among them, the compression rebound force of automobile water cut is the compression load of automobile water cut. An important indicator of performance, the existing general-purpose automobile water-shear compression elasticity test is carried out on a universal material testing machine. Due to the limitation of testing equipment, the universal material testing machine cannot simulate the water-shearing of automobiles under wet conditions and different temperatures. Changes in the compression load, so the accuracy of the data on the compression load of the water-cut automobile tested on the universal material testing machine is not high, and can only be used as a reference, not as a definite value. There are also some testing companies that design special water-cut compression for automobile Load testing machine, the defect of this kind of testing machine is that when the sample is opened and replaced, the external environment will affect the test conditions in the test chamber, the temperature will drop rapidly at high temperature, and the temperature will rise rapidly at low temperature, and fog will be generated when changing the sample at high temperature, which will affect the replacement. For the sample, when the sample is changed at a low temperature, water vapor enters the inside of the box and condensation occurs, causing the screw to condense and freeze, thereby damaging the sensor due to condensation and freezing, which seriously affects the working efficiency of the testing machine

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