Computer Servo Control Unviersal Tensile Test Machine

1. Introduction

The tensible testing machine composed of the control computer & servo motor is a universal testing machine designed and manufactured for educational & institutional department like university and research institution.

PC,full-digital controller,servo motor with gear box,ball screw are integrated into the entire testing system to move up,down so as to accomplish the tensing, compressing, bending, cutting tests. Additionally equipped with the testing fixtures, it is widely applied in mechanical property test for the metals, metalloid,composite etc.

2. Main Technical Parameters

1. Max test force:100KN

2. Measure range of test force:0.4% - 100%(400 N - 100000N)

3. Indicator value accuracy of test force:Better than the indicated value±0.5%

4. Definition of test force:1/300000 (un separated or equivalent to 6 part)

5. Displacement of measurement accuracy:over0.0025mm

6. Test Speed range:0.01—500mm/min,continuously viable

7. Speed Control accuracy :±1%(0.01~10mm/min); ±0.5%(10~500mm/min)

8.Constant power, constant strain, constant displacement control range: 0.2%-100%FS

9 .Test space:A,Stretch space:600mm B,Compression space:700mm

10. Fixture style:Wedge fixture

11.Platen Dimension:φ100 mm

12.Power: 220V±10%,50Hz ,Single Phase

13. Work Environment:RT-35,Relative Humidity

  ≤ 80%

14. Host Dimension:760×510×2000mm

15. Weight:750 kg/1350KG

3.Features

1 Main Mechanism

1.1 High stiffness gantry frame structure adopted, with high strength and small deformation.

1.2 Adopt imported high precision ball screw, transmitted efficient and smoothly.

1.3 Transmission part adopt Arc-gear synchronous belt transmission, with no clearance in the bidirectional transmission process.

1.4 Adopt AC motor and drive system to ensure the stable transmission and torque, with over current, over voltage, overload protection devices, speed ratio of 1:10 0000;

1.5 With special designed clamp, it can fix firmly and easy to operate ,without jaw sliding phenomenon.

1.6 Special process ensured machine alignment, eliminate the influence of irregular sample to sensor.

4.Control System

1.The outstanding feature is the closed-loop control by realizing tensile value, deformation, position closed-loop control as well as smooth-switch between them; it even can realize the loop control (fatigue) & arbitrary curve control by script controlling, which can be applied for the great difficult testing control.

2.It adopts PC & the interface board to implement the data gathering, storage, treatment and testing result printing. It also can calculate the parameters such as the maximum tensile force, average yield strength, max. deformation, elastic modulus; with a flexibility to process the data that covers curve treatment, multi-sensor application, image and drawing interface & support MS-ACCESS data base, which make the entire more powerful.

5. Software Control

It is in compliance with GB228-87, GB228-2002 standard as well as other standards from more than 30 countries. Moreover, The GB, ISO,JIS,ASTM, DIN as well as standards offered by the customer to test, gather & process the result data with well-performed extensibility.

Software: It can realize the automatic shifts for that includes automatic variable range, automatic speed testing automatic returning after testing;

• Automatic mechanical load tension value setting for continuous testing; The value indicated by mouse and overlapping contrast.
• With protection devices of over load, over current, over voltage,under voltage, over speed ,stroke etc.
• Testing data derived with the current national standard report format.
• Software operating system language: both Chinese and English.
• The tension, displacement, stress as well as other testing targets can be testing by this system.

Control Method:

• The software in a multi-controlling method can set the speed, fracture load, running time;
• The special design operation pendant is introduced to calibrate as well as positioning when insert the testing piece.
• Automatic diagnosis for the material fracture, radial crushing and automatic shut-down & automatic returning setting;

Curve Type:  

• Vertical and horizontal coordinates can be set freely.
• Loading-displacement,loading-time,displacement-time.
• Stress-strain,strain-time,stress-time.

Available Testing Documents

• Max.force value, Min.force value, Fracture value, the upper and lower yield strength, tensile strength, compressive strength, elastic modulus, elongation, stripping interval maximum, minimum, average value, etc. (Should be selected before place order).

7.Testing Items:

General test items:(general show value and calculated value)

• Stretch test (standard clamp)
• Compression test (optional clamp)
• Bending Test (optional clamp)
• Peeling Test (optional clamp)
• Tearing Test (optional clamp)
• Cutting test (optional clamp)

8. Software:

Main Interface of material test software.

Configuration file interface               

Test report and curve analysis interface

9. System Basic Configuration

1. Host machine                                      

1.1 AC servo motor&servo drivers                        

1.2  High-precision load cell                 

1.3 Imported precision ball screw pair                             

1.4 Speed Reduction system (arc-gear synchronous belt drive)                          

2.Dual channel program-controlled amplifier                 

3.Smartest dedicated control software                               

4. Optical encoder                     

5.Accessory: Stretch and compression accessory