The ball screw, sensor, motor, software and hardware of the electronic universal testing machine, and the transmission system are important parts of the testing machine. How to choose a high-quality testing machine, these five factors play a decisive role.
First, the ball screw electronic universal testing machine currently used ball screw and trapezoidal screw. In general, trapezoidal screw gap is relatively large, the friction force is relatively large, and the service life is short. At present, there will be some manufacturers on the market. In order to save more costs, they will use a lead screw instead of a ball screw.
Second, the sensor sensor is an important part of the tester's accuracy and force measurement stability. Currently on the market electronic universal testing machine sensor type S type, wheel type. Sensor internal strain gauges are not high accuracy, fixed strain gauges with plastic aging resistance is not good, the sensor's material will affect the sensor's accuracy.
Third, the motor quality electronic universal testing machine motor using AC servo speed control system, Panasonic AC servo motor, stable and reliable performance, with over-current, over-voltage, overload protection devices. At present, there is still an electronic universal testing machine using ordinary three-phase motor or variable frequency motor, which uses analog signal control, slow control response, positioning is not accurate, the general speed range is narrow and there is no high speed, there is no low speed or low speed No speed, and speed control is accurate.
Fourth, the software and hardware quality electronic universal testing machine using brand computers, control system software WINOOWsXP operating system platform, with a fast speed, mild interface, simple operation and other characteristics, can meet the needs of different materials, test and measurement, according to national standards, International standards or industry standards measure physical properties of various materials.
V. Transmission system The electronic universal testing machine has two main transmission parts: one is the arc synchronous gear belt and the other is the normal belt drive.
The first transmission method has stable transmission, low noise, high transmission efficiency, high precision, and long service life. The second transmission method cannot guarantee the synchronism of the transmission. Therefore, the accuracy and stability are not as good as those of the first transmission system.
First, the ball screw electronic universal testing machine currently used ball screw and trapezoidal screw. In general, trapezoidal screw gap is relatively large, the friction force is relatively large, and the service life is short. At present, there will be some manufacturers on the market. In order to save more costs, they will use a lead screw instead of a ball screw.
Second, the sensor sensor is an important part of the tester's accuracy and force measurement stability. Currently on the market electronic universal testing machine sensor type S type, wheel type. Sensor internal strain gauges are not high accuracy, fixed strain gauges with plastic aging resistance is not good, the sensor's material will affect the sensor's accuracy.
Third, the motor quality electronic universal testing machine motor using AC servo speed control system, Panasonic AC servo motor, stable and reliable performance, with over-current, over-voltage, overload protection devices. At present, there is still an electronic universal testing machine using ordinary three-phase motor or variable frequency motor, which uses analog signal control, slow control response, positioning is not accurate, the general speed range is narrow and there is no high speed, there is no low speed or low speed No speed, and speed control is accurate.
Fourth, the software and hardware quality electronic universal testing machine using brand computers, control system software WINOOWsXP operating system platform, with a fast speed, mild interface, simple operation and other characteristics, can meet the needs of different materials, test and measurement, according to national standards, International standards or industry standards measure physical properties of various materials.
V. Transmission system The electronic universal testing machine has two main transmission parts: one is the arc synchronous gear belt and the other is the normal belt drive.
The first transmission method has stable transmission, low noise, high transmission efficiency, high precision, and long service life. The second transmission method cannot guarantee the synchronism of the transmission. Therefore, the accuracy and stability are not as good as those of the first transmission system.
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