Car seat, installation device and seat belt device testing machine

HT-6038Car seat, installation device and seat belt device testing machine（3通道）

Equipment Overview

1.1. Basic Information

Scope of use:Car seat, installation device and seat belt device testing machineMainly used for testing the strength test of seat belt fixing points. This testing machine is suitable for the following situations: strength evaluation testing of seat belt fixing points, new product design, process changes, material changes, source identification, product quality sampling, etc. The experimental software interface adopts a Windows environment, with a user-friendly human-machine interface and easy operation.

1.2. technical indicators

1.2.1. Overall dimensions

1)Host dimensions: (6000 × 2500 × 2800) mm;

2)Test base platform: Size (6000 × 2500 × 350) mm, longitudinal and transverse T-shaped grooves, evenly distributed with a spacing of 250mm.

3)Microcomputer control console: (800 × 600 × 1600) mm.

4)Electrical control cabinet: (800 × 600 × 1400) mm.

1.2.2. Servo actuator (electric cylinder)

1)Tensile strength: 26KN, quantity 9, comprehensive accuracy ± 1%;

2)Journey: 1000mm;

3)Loading speed range: The loading speed (0-250) mm/s is infinitely adjustable, and it takes 2-60 seconds to load to the specified value;

4)Speed accuracy: 0.5% F.S;

1.2.3. Load sensor

1)Load: 30KN, quantity: 3 pieces;

2)Accuracy: ± 0.1% F · S;

1.2.4. Optical code displacement sensor (using servo motor photoelectric encoder)

1) Quantity: 3 pieces;

2) Linear accuracy: 0.5% F · S;

3) Repetition accuracy: 0.1%.

1.2.5. Sampling frequency 1000Hz.

1.2.6. The AD conversion accuracy is 16 bits.

1.2.7.The measurement accuracy is better than ± 0.5% F · S.

1.2.8.The control accuracy is better than ± 0.5% F · S.

1.2.9.The equipment power supply is three-phase AC 380V 50Hz 50kW.

1.3.Performance Characteristics

1.3.1.The measurement and control system adopts the National Instruments NI high-performance motion controller as the core component, with modular and standardized functional units, flexible configuration, strong interchangeability, and easy after-sales service;

1.3.2.Control mode: load and displacement, two fully digital closed-loop real-time control modes, no disturbance switching; Three sets of actuators can be loaded separately or simultaneously, and can independently measure, display, and save data in parallel through multiple channels;

1.3.3.Loading time: The time required to load to the specified value under displacement control refers to the speed range of the servo actuator. The fastest time required to load to the specified value under load control is 2 seconds, and the slowest time is not limited;

1.3.4.Holding time: The holding time for loading to the target is infinitely adjustable, with a minimum of 1 second and a maximum of no limit;

1.3.5.The processing method of experimental curve data can be combined with the operating parameters of the experiment to form a whole experimental module, with flexible combination settings, easy calling, and the ability to save and read all parameters;

1.3.6.Safety protection function, with overload protection and software setting protection measures to ensure the safety of personnel and equipment.

Equipment structure

mechanical system

Electrical control and acquisition system

The entire electrical control and acquisition system can be divided into: electrical drive system and motion control system.

2.2.1.Electrical Drive System

The electrical drive system relies on standard cabinets and is the core of power distribution and electrical logic control for the entire equipment. All signal wire connections are completed in this section, which uses optoelectronic isolated solid-state relays and high-quality shielded cables in critical areas to effectively reduce interference with control and sampling signals during the operation of the servo motor system.

Using standard cabinets to place industrial computers, displays, servo control systems, electrical drive systems, etc., the overall layout is neat, with good dust resistance, providing a stable and safe operating environment for the system.

2.2.2. Measurement control system

The measurement and control system adopts a multifunctional board from NI Corporation in the United States, which is a robust and reliable high-performance industrial grade control card with industry standard certification. It is highly suitable for applications that require waveform acquisition, high-speed control, or signal processing.

Maximum number of single ended analog input channels: 32

Maximum number of differential analog input channels: 16

Maximum sampling rate: 250 kS/s

Analog input resolution: 16 bits

Bus connector: PCI Express

Number of analog output channels: 4

Maximum update rate: 900 kS/s

Number of bidirectional digital channels: 48

Number of counters/timers: 4

2.3.software system

1. Create hardware tasks and complete various practical actions

2. Configure sensor parameters and test parameters according to the instructions of the upper computer

3. Independently collect and control data, and transmit real-time data to the upper computer

The real-time display system and upper level software system for test status run on Advantech industrial control computers, which can perform complex programming and complete tasks such as storing sampling data.

The main features are:

1. The upper computer runs on the Windows operating system, with a user-friendly interface and easy operation

2. Hidden most of the hardware configuration parameters, leaving only a small number of hardware configuration parameters that users need to use, simplifying user operations

3. Real time display of sensor sampling instantaneous values after software startup, and maximum and minimum sensor sampling values can also be displayed during testing

4. The data processing method of the test curve can be combined with the test operation parameters to form a whole test module, with flexible combination settings, easy calling, and the ability to save and read all parameters

5. All experimental data can be stored completely;

6. All experimental data supports exporting to an Excel spreadsheet

7. Multiple conditions can be flexibly set to retrieve test records

8. Multiple sets of test report templates can coexist, and different templates can be called according to actual needs

9. Feature point search can be performed on the experimental curve under various conditions

4.1 Site conditions

1) Power requirements: three-phase AC 380V 50Hz 70kW; Single phase power supply AC220 ± 10% V, 1kW;

2) It should have a ground wire of no more than 3 Ω;

3) Equipment operating environment requirements, temperature: 15 ℃ to 35 ℃, humidity: 10% to 80%;

4) Equipment footprint: 8000 × 4000 × 3000 (mm);