What is a servo controlled tensile testing machine?
In the fields of industrial production and scientific research, the tensile testing machine is an important equipment used to test the mechanical properties of materials. The servo-controlled tensile testing machine has become a representative of modern testing technology due to its high precision, high stability and intelligent features. This article will introduce in detail the definition, working principle, application scenarios and comparison of popular models in the market of servo-controlled tensile testing machines.
1. Definition of servo controlled tensile testing machine
The servo-controlled tensile testing machine is a device that uses a servo motor drive system, combined with high-precision sensors and a computer control system, to test the mechanical properties of materials such as tension, compression, and bending. Compared with traditional hydraulic or mechanical testing machines, it has the advantages of fast response speed, high control accuracy, and strong real-time data collection.
| Comparative item | Servo control type | Traditional hydraulic type |
|---|---|---|
| Control accuracy | ±0.5% | ±1-2% |
| Response speed | millisecond level | Second level |
| Energy consumption | Low (energy saving more than 30%) | high |
2. Core working principle
The servo control system achieves accurate testing through the following processes:
1.Instruction input: Set test parameters (such as speed, stroke) through the operation interface
2.closed loop control: The servo motor receives the displacement/force sensor feedback signal in real time
3.Dynamic adjustment: Automatically adjust the output torque and speed according to the deviation value
4.Data collection: Simultaneously record force value, deformation and other parameters, the sampling frequency can reach 1000Hz
| Subsystem | key components | Technical indicators |
|---|---|---|
| Drive system | AC servo motor | Power 0.5-10kW, accuracy ±0.1% |
| Measurement system | Strain sensor | Measuring range 50N-1000kN, accuracy level 0.5 |
| control system | DSP processor | Control cycle ≤1ms |
3. Latest industry application trends (hot spots in the past 10 days)
According to recent industry information monitoring, the demand for servo-controlled tensile testing machines has surged in the following fields:
1.New energy battery: Test the pole piece peeling strength (a head manufacturer purchased 20 units)
2.biomedical materials: Upgrading of tensile testing standards for surgical sutures
3.Aerospace: Composite material testing accuracy requirements increased to 0.2%
| Application areas | Typical test items | Technical difficulties |
|---|---|---|
| Auto parts | seat belt tensile strength | Dynamic impact testing |
| Electronic appliances | FPC flexible circuit board | Micro force test (<1N) |
| building materials | Yield strength of steel bars | Large tonnage test (≥500kN) |
4. Purchasing Guide (Comparison of Popular Models in 2023)
According to the latest data from major testing instrument exhibitions, the performance comparison of mainstream manufacturers’ models is as follows:
| Model | Maximum load | Accuracy level | Features | reference price |
|---|---|---|---|---|
| Instron 5965 | 50kN | Level 0.5 | Blu-ray video extensometer | ￥420,000 |
| MTS Criterion | 100kN | Level 0.5 | Multi-axis testing | ￥680,000 |
| Shimadzu AGX-V | 300kN | Level 0.5 | Automatic fixture recognition | ￥550,000 |
5. Technology development trends
According to recent industry seminars, servo-controlled tensile testing machines will develop in the following directions in the future:
1.Intelligent: AI algorithm realizes automatic generation of test plans
2.IoT: 5G remote monitoring and data cloud storage
3.Modular: Quick change fixture/sensor system
4.Greening: Energy consumption reduced to 40% of traditional models
With the advancement of the Made in China 2025 strategy, servo-controlled tensile testing machines will continue to make breakthroughs in accuracy, efficiency and intelligence, providing stronger technical support for material research and development and quality control.
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