1. Overview of the equipment
1.1. basic information
equipment name: car seat three station head pillow on dorsal strength test rig
equipment types: ZYQD-3
use range: mainly used for testing seat headrest static test. The test machine is suitable for the following situations: the evaluation test, the new design, the change process, the change of material, the source of goods, the product quality sampling, etc.. Reference standard: reference and can meet the GB11550-2009 "car seat head pillow strength requirements and test methods", GB15083-2006 "car seats, seat and seat device and test method of the head strength requirements and test methods", R17
ECEMethod of static test of seat head rest on the uniform provisions of the vehicle for the approval of the seat, the seat of the seat and the head of the R25 ECE.
1.2. technical specifications
1.2.1.
1 (:3000) host size (horizontal x 2000 x 1880 (mm);
2 600 x 1400 (mm);
3 control cabinet: 800 x 600 x 1700 (mm).
1.2.2. host frame
1) three station spacing adjustable;
2) three position before and after adjustable;
3) three position adjustable;
4.
1.2.3.
1) the maximum thrust force: 2000N,
2,, 600mm,
3, 1mm/min, 400mm/min, and
4).
1.2.4. back loaded cylinder
1) maximum push pull: 2000N;
2) stroke:
3; 400mm) speed regulation range: 1mm/min to 400mm/min. Using
1.2.5. load measuring
Shu Chi, Shanghai Automation Co., Ltd.
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1) range 20 to 1800 (n);
2) measurement accuracy: + 1%.
1.2.6. displacement measurement
1) using range: according to the load cylinder stroke;
2) measuring accuracy: S - 0.05%F.
1.3. performance characteristics
1.3.1.Mechanical system
1) test platform with vertical and horizontal T type groove, can be fixed with different types of specimen base;
2) with a head pillow loading cylinder height positioning device, simplified test operation;
3) with the position of the initial angle positioning device, a key position of the initial point of view,
4) with a shift trunk zero position positioning device, a key position shift trunk zero;
5.
1.3.2. control system
1) test collection and control use based on Advantech IPC of American NI PCI card, acquisition and control
speed is quick, the stability is high;
2) relying on the board independent hardware millisecond timing for PID closed-loop control, control precision, good synchronization,
3) using PLC for system scheduling, the use of software centralized control equipment and all mobile devices,
4) to complete the watchdog function, protect equipment and operating personnel security;
5) all major components and boards are purchased from the market mainstream brands, late maintenance operation is simple, maintenance costs. The structure of the
2. equipment is mainly composed of the experimental platform, the main frame, the head of the back mode, the head of the pillow, the back of the loading cylinder, and the lateral moving device,The vertical movement device and computer control and collection system and so on.
Shu Chi, Shanghai Automation Co., Ltd.
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4 Figure 2-1 host sketch figure
2.1. mechanical system
mechanical system consists of longitudinal T type groove cast iron platform, headrest cylinder loading and back loading cylinder, H point alignment device and
high precision load sensor and so on.
2.1.1. cast iron platform
figure 2-2 cast iron platform, the platform is in accordance with the provisions of the JB/T7974-1999 level of the accuracy of the level of 2. The bottom platform is a cast iron platform with a vertical T type. The platform uses high strength cast iron HT250 casting, the platform after going to magnetic and stability, the
Platform with high accuracy, good abrasion resistance.
2.1.2. pillow for head loading cylinder
Shu Chi, Shanghai Automation Co., Ltd.
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figure 2-3 headrest loading cylinder schematic diagram
loading cylinder uses the servo electric cylinder, which has low noise, energy saving, clean, high rigidity, shock resistance, long life
, operation and maintenance simple. Before and after the induction type limit switch can be installed with the servo system to improve the safety of the system. The schematic diagram of the 2-4 electric servo cylinder is used to adjust the parameters, monitor the state and analyze the failure of the servo motor and the servo driver of the Panasonic.Its powerful intelligent automatic adjustment function can replace the usual professional complex debugging process, easy to complete the high
fast response, the highest speed response frequency can reach 1kHz. On the control side, the servo drive can receive up to 2Mpps
of the pulse command, and the instantaneous speed observer is built, and the motor speed can be detected quickly and with high resolution. In practical use, the servo motor front end is also installed with a speed reducer, connected to the electric cylinder through the reducer.
Shu Chi, Shanghai Automation Co., Ltd.
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figure 2-5 Panasonic servo motor schematic diagram
2.1.3. back loading cylinder
figure 2-6 back loaded cylinder schematic
figure 2-7 backrest size
A=131.5mm B=545.4mm C=487mm D=318.9mm center 235mm
E=388.2mm F=58.4mm
Shu Chi, Shanghai Automation Co., Ltd.
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2.1.4. H-point alignment device H point alignment device is mainly used for seat r points and test rig H point alignment. H point alignment device is mainly composed of a hand wheel, a lamp, a moving beam, a base, etc..
figure 2-8 H point alignment device illustrations of figure
2.1.5. load sensor
using spoke sensor, special design of dual-use of tension and compression sensor, can meet the test requirements of the different precision, high precision of the
, distortion is small, the performance is stable and reliable, good resistance to lateral force, wide measurement range,Easy to install. 2-9 load sensor schematic diagram
2.1. electrical control and acquisition system
the whole electrical control and acquisition system can be divided into: electric drive system and control system two parts.
2.1.1. electric drive system, which is based on the standard cabinet, is the core of the power distribution and the logic control of the whole equipment. The wire connection of the signal is completed in this part, which is used to reduce the interference of the control signal and the sampling signal in the key parts. The standard cabinet is used for the industrial control computer and display,Electric drive system, collection system, control system, etc., the whole body layout neat, dust performance is good, the system provides a stable, safe operating environment.
Shu Chi, Shanghai Automation Co., Ltd.
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8 figure 2-10 standard cabinet schematic figure
2.1.2. acquisition control system
the system by American NI multi-function card as a core component, with the sensor signal amplifier, photoelectric encoder
acquisition card, analog output card and realize the function unit template, standardized design, has a flexible configuration, interchangeability strong
, easy to service and other features. All boards are used in the PCI bus mode with high efficiency and stability, and only need to be inserted into the calculation.
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