Metal material testing machine series

Product technical parameters：

Machine specification：

QT-60100D electro-hydraulic servo universal material testing machine set electro-hydraulic servo automatic control, automatic measurement, data acquisition, screen display, test result processing as one, with the cylinder lower host as the platform, equipped with precision oil pump and electro-hydraulic servo valve, PC servo controller, to achieve multi-channel closed-loop control, complete the test process automatic control, automatic measurement and other functions. It has the characteristics of good professionalism, high reliability, easy upgrade, etc., and can be continuously enriched and improved with the development of testing and control technology and the change of test standards.

Basic structure and main function:

1. Main machine: the configuration of the cylinder under the main machine frame, this structure greatly reduces the height of the main machine, convenient transportation, installation, stable and reliable performance, test bench lifting by motor, chain, screw drive, to achieve the adjustment of stretching space, easy test operation;

2. Measurement and control system: composed of electro-hydraulic servo oil source, full digital PC servo controller, electro-hydraulic servo valve, pressure sensor, extensometer for measuring specimen deformation, photoelectric encoder for measuring displacement, PC measurement and control card for testing machine, printer, multifunctional test package, electrical control unit, etc.

3. Standard electro-hydraulic servo oil source:

1) Suitable for the load of fuel inlet throttle speed regulation system, the use of mature technology according to the standard modular unit design and production, specially for the use of electro-hydraulic servo universal testing machine;

2) The selection of mature technology oil-motor, reliable quality, stable performance;

3) Adopt unique technology to develop and produce the load adaptive throttle speed regulating valve, the system pressure is stable, adaptive constant pressure difference flow regulation, no overflow energy consumption, easy to PID closed-loop control;

4) Pipeline system: pipelines, joints and their seals are selected with stable performance group kits to ensure reliable sealing of the hydraulic system and no leakage of oil failure;

4. Electrical control cabinet:

a. All the strong current components of the system are concentrated in the strong current control cabinet, to achieve the effective separation of the strong current unit and the weak current measurement and control unit, to ensure that the measurement and control system is not interfered with, long-term stable work;

b. Manual operation button is set on the electric control cabinet, including power switch, emergency stop and oil source pump start and stop;

5. Full digital PC servo control system:

a) The system is based on PC computer, full digital PID regulation, and equipped with PC plate servo amplifier, measurement and control software and data acquisition and processing software, which can realize closed-loop control of test force, sample deformation and piston displacement and smooth switching of control modes;

b) The system consists of three signal conditioning units (test force unit, cylinder piston displacement unit, specimen deformation unit), control signal generator unit, servo valve drive unit, servo oil source control unit, necessary I/O interface, software system, etc.

c) Closed-loop control loop of the system: the measurement sensor (pressure sensor, displacement sensor, deformation extender), servo valve, controller (each signal conditioning unit) and servo amplifier together form a number of closed-loop control loops to realize the closed-loop control function of the test force of the testing machine, the displacement of the cylinder piston and the deformation of the sample; It has a variety of control modes, such as equal rate test force, equal rate cylinder displacement and equal rate strain, and can realize smooth switching of control modes, so that the system has greater flexibility.

6. PC card servo amplifier for testing machine:

A. For the pluggable PC card board, the application of advanced computer bus control technology designed for the testing machine, with program-controlled analog amplifier, A/D conversion, digital acquisition channel, digital I/O, etc.;

b. The special measurement and control card and PC unit into a single card measurement and control system, can be directly connected with the sensor, measurement and control and data acquisition, so that the complex measurement and control and data acquisition system becomes simple and reliable;

c. The use of computer bus technology, directly inserted into the computer expansion slot, all digital circuit, zero adjustment, gain adjustment, etc. are realized by software, is the latest product unit of testing machine measurement and control technology development;

d. Gain programmable cascade amplifier, can get different gain magnification;

e. The sensor bridge power supply and the reference voltage of A/D chip share the same voltage, and the whole measurement system attenuates year-on-year, realizing the hardware compensation technology of the bridge power supply;

f. To meet the sensitivity and resolution requirements of the system through multi-bit A/D conversion, avoiding the software frequency doubling method to reduce the characteristics of the system;

7. Multifunctional test package:

a. Operating system Windows98/XP/2000 platform, all Chinese operation interface;

b. Computer screen display test force, cylinder displacement, loading rate, deformation test data, draw time - test force/deformation, deformation - test force and other test curves; Automatic data processing, data processing methods meet the requirements of GB228-2002 standard, such as upper and lower yield points, maximum force points, all kinds of specified non-proportional stress points, all kinds of specified full elongation stress points, etc. At the same time meet the testing machine pressure test requirements;

c. The software also provides data analysis function to meet the test personnel for test analysis and special test data processing.

d. With strong graphic operation functions, such as dynamic test curve and digital display function, graphic magnification, interception function, cursor following display function, etc.;

e. Adopt VXDs high-speed data acquisition technology to realize multi-channel (up to 16 channels) high-speed data acquisition;

f. The system has a complete file operation function for the storage of test curves and test data; At the same time, the test data can be stored in the form of ASCII code, so as to facilitate the user to carry out secondary data processing;

g. With single test report output and batch test report output printing function;

8. The control system has overload, oversetting, power off, piston to the limit position and other protection functions;

9. Hydraulic clamping oil source: Independent low noise hydraulic clamping oil source, control the clamping and loosening of the chuck.

Main configuration list:

1. Hydraulic universal testing machine host: 1 pcs

2. Hydraulic universal testing machine standard oil source: 1 set

3. Electro-hydraulic servo full digital PC controller (including computer): 1 pcs

4. Testing machine dedicated PC control card: 1 set

5. HP inkjet printer: 1 pcs

6. Electro-hydraulic servo valve: 1 pcs

7. Electrical control box (integrated with oil source): 1 set

8. Pressure sensor: 1 pcs

9. Bolt test fixture (M12 / M14 / M16 / M18 / M20 / M22 / m2-m24 / M27): 1 set

10. Anchor nuts and screws: 4 pcs

11. Measurement and control system: including (one Lenovo computer, one HP laser printer, one oil pressure sensor): 1 set

12. Special measurement and control software (installed in the microcomputer): 1 set

• Maximum test force：1000kN
• Test force measurement range：2%-100% FS
• Test force indication accuracy：indication accuracy ±1%
• Maximum stretching space：620mm
• Maximum compression space：520mm
• Flat specimen clamping thickness：0-30 (standard 0-15)
• Round specimen clamping diameter：Φ13-Φ40
• Maximum distance between bending supports：Maximum distance between bending supports
• Column spacing：510mm
• Piston displacement indication accuracy：±0.5%FS
• Deformation measurement resolution：0.001mm
• Deformation measurement accuracy： ±0.5%
• Sensor：oil pressure sensor, photoelectric sensor, extensometer
• Control mode：electro-hydraulic servo closed-loop control, control mode can be smoothly switched
• Display mode：computer screen display test force, piston displacement, sample deformation measurement value, screen display test curve, screen zero, calibration
• Host size：about 850×665×2340mm
• Control cabinet size：1010×650×870mm
• Host weight：about 3000kg
• Oil pump motor power：2.2KW
• Beam moving motor power：0.55KW