The computer controlled electronic universal testing machine is a new generation microcomputer controlled electronic universal testing machine specially designed for colleges and universities and research institutes.Computer system by digital controller, the speed control system to control the servo motor rotation, after reduction system to slow down the move beam by precision ball screw pair drive up and down, to complete the sample of tensile, compression, bending, shear, and other mechanical properties test, additional configuration supported by a wide variety of experiment, in the metal, nonmetal, composite materials and products of mechanical performance test, has the very broad application prospects.This machine is widely used in building materials, aerospace, machinery manufacturing, wire and cable, rubber, plastic, textile, home appliances and other industries of material inspection analysis, is a scientific research institutions, universities and colleges, industrial and mining enterprises, technical supervision, commodity inspection, arbitration and other departments of the ideal test equipment.

GB/T16491 -- 1996 electronic universal testing machine

Gb2611-92 general technical requirements for testing machine

GB/ t6825.1-2002 test of static uniaxial testing machine part 1: test and calibration of force system for tension and/or pressure testing machine

GB/ t12160-2002 "single axle test with extensometer regulations" etc.

GB/ t228-2002 metal materials room temperature tensile test method

GB/ t7314-2005 metal materials room temperature compression test method

GB/ t14452-1993 "test method for bending mechanical properties of metal materials"

GB/ t8653-1988 metal young's modulus, string modulus, tangent modulus and poisson's ratio test method.

1.The host

1.1 the host is the door type floor type frame with high axial rigidity.It is mainly composed of upper beam, moving beam (middle part), mesa and light bar, and ball screw is fixed on the mesa and upper beam.The two ball screw threads and the guide sleeve are fixed on the moving beam.

1.2 structure principle: adopt the circular arc synchronous belt wheel deceleration, the German company has the ball screw side transmission, the transmission has no gap, the test force and the deformation speed precision control is guaranteed.Through the three-stage synchronous belt wheel, the motor drives the screw to rotate, thus driving the moving beam to move in a straight line at the selected speed to achieve various test functions.

1.3 the double space structure is adopted for tensile test.Lower space for compression, bending test.

1.4 stable transmission, quick response and low noise.

1.5 servo unit adopts full digital ac servo motor and drive, with wide speed range and high precision.

1.6 automatic zero adjustment, automatic calibration and other functions;

1.7 protection function: overload, overstroke, overpressure, overcurrent, overheating and other protective functions;

1) mobile beam limit protection mechanism: it is composed of the limit rod, upper and lower block, fastening screw, pulling fork, limit switch and so on.In order to prevent the moving beam from exceeding the upper or lower limit position causing mechanical accident or making the moving beam stop at the setting position, the tester has a movable beam limit protection mechanism.When the fork on the moving beam comes into the blocking block, the test machine is stopped by the contact of the limit switch and the limit switch.

2) "emergency stop" : in your use of the abnormal situation in the process of testing machine, cannot by normal means to turn it off, please press the "emergency stop" button immediately, protect machine from accidental damage.

1.8 force channel interface can replace other types of force sensors, automatic calibration.Deformation channel interface can also replace other types of deformation sensors, automatic calibration.

1.The test force measurement and control system - using the American power value sensor to realize the test force without inertial measurement.

Maximum test force: 300kN.

Force value resolution: 1/300,000.

Force sensing element: us - world power sensor.

Test force measurement error:

Test force measurement range: 0.4~100%FS.

Test force value display: computer screen display direct reading.

2.Deformation measurement system - use the extension meter to measure the deformation of the specimen.

Extension meter specification: standard distance: 50mm.

Range: 5 mm

Deformation measurement error:

Deformation measurement resolution: 1/300000.

Deformation measurement range: 1~100%FS (continuous full range measurement)

Deformation value display: computer screen displays direct reading.

3.Displacement measurement system - using photoelectric encoder to measure displacement.

Relative error of displacement measurement:

Displacement measurement range: 0~999mm.

Displacement measurement resolution: 0.001mm.

Display mode: the displacement value is displayed by the computer screen.

4.Speed control

1) test force

Rate control: 0.1~100% FS/min.

Control range: 2~100%FS.

Accuracy of equal rate control: + 1% set value.

(2) change shape

Rate control: 0.01~100% FS/min.

Control range: 2~100%FS.

Accuracy of equal rate control: + 1% set value.

(3) a move

Rate control: 0.01~200mm/min.

Accuracy of equal rate control: + 1% set value.

The control precision of the constant test force, constant deformation and constant displacement rate is set.

5. Host and accessories.

Maximum test force: 300kN.

Maximum stroke of moving beam: 1000mm.

Source: 220V, 50Hz, 1kw.

Clamping method: wedge holder.

Clamping range of stretching device (according to user requirements) : plate 0-20mm;Rod from 5 to 26 mm

Compression device: 100mm.

Bending device support roller diameter: 30mm.

Span range: 80 ~ 430mm.

Extension meter distance and range: 50/5mm.

Power supply: 220V,50Hz, 2.0kW.