Universal testing machine, a material testing machine integrating tensile, bending, compression, shearing, ring stiffness and other functions. It is mainly used for the mechanical properties test of metal and non-metal materials. It is an industrial and mining enterprise, research institute, college, engineering. Ideal testing equipment for departments such as quality supervision stations. The most common are electronic and hydraulic.
Electronic universal testing machine
The electronic universal testing machine is a machine that performs testing of stretching, compression, bending, shearing, etc. by using a servo motor as a power source. It is commonly used in various metal, non-metal, composite materials, medicine, food, wood, copper, aluminum, plastic profiles, wire and cable, paper, film, rubber, textile, aerospace and other industries to stretch and other functional objectives. Testing, can also be customized according to the domestic and international specifications provided by the user, all kinds of experimental data processing software and experimental aids
The computer system controls the servo motor to rotate through the controller through the speed control system. After deceleration, the beam is driven by the lead screw to complete the ascending and descending; the tensile, compression, bending and shearing tests are completed. Adding test attachments can be widely used in metals, non-metals, materials, plastics and other industries.
Electronic universal testing machine is mainly composed of two major parts: machinery and electrical appliances.
1. The structure and working principle of the mechanical part:
The mechanical drive is used to drive the reducer by the motor. The power transmission screw drives the intermediate beam to move up and down. Two clamps are mounted on the upper beam and the upper beam to realize the tensile and compression test of the test piece.
2. The characteristics and working principle of the measurement part:
It adopts computer control, high-precision load cell, high-precision AD conversion and imported photoelectric encoder. It has the characteristics of intuitive display, convenient operation and accurate data. Field calibration and peak hold are available.
Hydraulic universal testing machine is mainly used for metal, non-metal materials and tensile, bending, bending and other mechanical function experiments of parts, components and components. It is an industrial and mining enterprise, building building materials, intermediate quality inspection, water conservancy and hydropower, bridge engineering, scientific research. The ideal experimental equipment for the mechanical laboratory of colleges and universities.
Test working principle
The high-pressure oil pump supplies oil to the working cylinder, and through the movement of the piston, the platen and the upper beam (the upper jaw seat) are pushed upward to perform the tensile or compression test of the sample. The tensile test is carried out between the upper beam of the main machine and the moving beam, and the compression test is carried out between the platen of the main machine and the moving beam. The adjustment of the test space is achieved by the drive mechanism (elevating motor, sprocket, chain, etc.) driving the double screw to rotate synchronously to raise and lower the moving beam.
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