Rubber sealing ring compression elasticity modulus testing instrument

Abstract

The invention discloses a rubber sealing ring compression elasticity modulus testing instrument, which comprises a touch screen, a PLC (programmable logic controller), a step motor driver and a detection instrument device, wherein a control program is guided into the PLC and the touch screen; the control instruction is transmitted to the PLC through the touch screen; then, a high-speed pulse signal is sent to the step motor driver to control the starting and the positive and reverse rotation of the step motor, and the speed change and the emergency position limitation. When a pressure sensor probe arranged on the step motor is in contact with a tested sealing rubber ring, pressure signals can be generated; then, the formed pressure analog quantity signals can be transmitted to an analog quantity signal amplifier to be amplified; the analog quantity module is further used for data collection; the data is converted into the digital quantity signals; next, the digital quantity signals arefinally sent to the touch screen through a CPU224; the dynamic relationship curve of pressure and time is formed; a cantilever structure of a probe can meet the test requirements of the sealing rubber rings with different diameters.

Description

technical field [0001] The invention relates to an instrument for testing the compressive elastic modulus of a solid elastic material, in particular to a tester for the compressive elastic modulus of a rubber sealing ring. Background technique [0002] Rubber seals are an important industrial product and a basic component in many industries. Rubber sealing rings can be waterproof, oil-proof, gas-proof, shock-absorbing and other functions, and its quality directly affects the performance and service life of the product, and even personal and property safety. Among all the rubber rings, the most used one is the O-ring, which has simple geometric shape, convenient production and low cost. Due to the limitation of production technology level, the rubber sealing rings produced will have some defects, such as different sizes, uneven cutting, surface damage, grooves, etc. These defects will affect the physical properties of the sealing rings and cause safety problems at the same t...

AI Technical Summary

Problems solved by technology

Due to the limitation of production technology level, the rubber sealing rings produced will have some defects, such as different sizes, uneven cutting, surface damage, grooves, etc. These defects will affect the physical properties of the sealing rings and cause safety problems at the same time. It will cause huge economic losses to users and production enterprises, so the sealing ring must be tested before leaving the factory and before use, and the detection of elastic modulus is one of the important detection parameters

At present, domestic rubber sealing ring defects are mainly detected manually. This detection method is labor-intensive, easy to fatigue, introduces human errors, and has poor data stability.

At the same time, for rubber rings with small diameter, small thickness and poor toughness, it is difficult to obtain accurate elastic modulus through manual detection.

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