Microcomputer controlled spring support hanger testing machine height

1 Introduction

The TLS-W100 microcomputer controlled spring support and hanger testing machine is applied to various spring production enterprises and quality inspection departments. It can complete the testing of various mechanical performance indicators such as compression springs, tension springs, torsion springs, etc., meeting the testing requirements of JB/T 8130.1 constant force spring support and hanger and JB/T 8130.2 variable force spring support and hanger. The company has been committed to the research and development of mechanical performance testing instruments for products in the spring and other industries for many years, and has received strong support and assistance from quality inspection departments and enterprises at all levels. Our products are sold all over the country and are ideal testing equipment for spring production enterprises, colleges and universities, research institutions, and technical supervision departments.

2 Scheme Description

2.1 Host

1. Using Japanese Panasonic servo speed control motors to drive German NEUGRART servo controlled reducers, circular arc synchronous toothed belts, and ball screw pairs to achieve loading, smooth operation, and low noise. pollution-free. Stable and reliable performance, with protection devices for overcurrent, overvoltage, overspeed, overload, etc. The speed ratio can reach 1:100000. High service life, easy operation, and smooth lifting.

Adopting sensor placement, various types of samples can be replaced without climbing up, making it convenient for sample replacement. Slotting the middle crossbeam facilitates the adjustment of the sample center.

2. Compared with the old-fashioned electro-hydraulic servo pressure testing machine, this testing machine has the following advantages

a: The measurement range of test force is wider and more stable: due to the inherent zero position covering problem of electro-hydraulic servo control valves during static control (which is a characteristic of electro-hydraulic servo valves themselves), coupled with the sealing and friction problems of oil cylinders, the output (displacement and test force) near the zero position is non-linear, and it is easy to crawl at low speeds, with poor stability, high initial pressure, and inability to achieve output control of small deformation and small test force (the sample load is very small, and this method of control cannot be achieved); By using an AC servo motor combined with ball screw control, there is no problem with the aforementioned electro-hydraulic servo control. In addition, load sensors are used to measure force, resulting in a wider and more stable range of test force measurement.

B: Low noise during the experimental process: The noise of the AC servo motor is significantly lower than the working noise of the hydraulic pump

C: The control process is not affected by temperature, and the performance is more stable

C: No pollution caused by hydraulic oil running, leaking, dripping, or leaking

D: There is no problem with the servo valve being contaminated and stopping working

E: The power and transmission system is more compact, the structure is simpler and clearer, and the reliability is greatly improved.

F: Long term use with high reliability and maintenance free (without the hassle of replacing hydraulic oil).

H: Avoiding various drawbacks such as high oil circuit temperature requiring cooling during long-term operation of hydraulic systems

Jinan Zhongyan Microcomputer Controlled Spring Support and Hanger Testing Machine

2.2 Drive System

2.3 Control System

a) This machine adopts a domestic dual position upper and lower microcomputer controller (LCD and computer can be controlled separately or dual), ensuring that the testing machine can achieve closed-loop control of parameters such as test force, sample deformation, and beam displacement, and can achieve tests such as constant velocity test force, constant velocity displacement, constant velocity strain, constant velocity load cycle, and constant velocity deformation cycle. Smooth switching between various control modes is possible.

b) The electrical control circuit is in accordance with the electrical standards of the testing machine, with strong anti-interference ability, ensuring the stability of the controller and the accuracy of experimental data.

c) Automatic shifting: automatically switches to the appropriate range according to the load size to ensure the accuracy of measurement data; It has achieved true physical zeroing, gain adjustment, and automatic shifting, zeroing, calibration, and saving of test force measurement, without any analog adjustment links, and highly integrated control circuit

d) Conditional storage: Test control data and sample conditions can be modularized, facilitating batch testing;

e) Automatic transmission: The speed of moving the crossbeam during the test can be automatically adjusted according to a pre-set program or manually adjusted;

f) Automatic calibration: The system can automatically calibrate the accuracy of the displayed values;

g) Automatic saving: After the experiment is completed, the experimental data and curves are automatically saved;

h) Process implementation: The experimental process, measurement, display, and analysis are all completed by a microcomputer;

i) Batch experiment: For samples with the same parameters, they can be sequentially completed after one setting;

j) Experimental software: Chinese WINDOWS interface, menu prompts, mouse operation;

k) Display mode: Data and curves are dynamically displayed during the experimental process;

l) Curve traversal: After the experiment is completed, the curve can be reanalyzed, and the experimental data corresponding to any point on the curve can be found with the mouse;

m) Curve selection: Stress strain, force displacement, force time, displacement time and other curves can be selected as needed for display and printing;

n) Test report: The report can be prepared and printed in the format required by the user; Equipped with a network interface, it can transmit, store, print records, and perform network transmission printing of data, and can be connected to the internal LAN or Internet of the enterprise.

o) Limit protection: It has two levels of limit protection: programmable and mechanical;

p) Automatic shutdown: After the sample breaks, the moving crossbeam automatically stops;

q) Overload protection: When the load exceeds 3-5% of each gear value, it will automatically shut down;

The experimental results are obtained in both automatic and manual modes, and a report is automatically generated to simplify the data analysis process.

Jinan Zhongyan Microcomputer Controlled Spring Support and Hanger Testing Machine

2.4 Performance Parameters

a) Test force: 1000kN;

b) Test force grading: × 1, × 2, × 5, × 10

c) Accurate measurement range of test force: Sensor: 0.2kN~1000 kN (one for each of the three sensors 1000kN, 100kN, and 10kN);

d) Accuracy of test force measurement: ± 1%;

e) Displacement testing range: 0-1000mm

f) Displacement accuracy: ± 0.01mm;

g) Displacement speed control range: 0.01mm/min~200mm/min stepless speed regulation;

h) Displacement speed control accuracy: ± 0.02mm/min

i) Height above ground: 5000mm;

j) Effective lifting height:>1000mm

k) Power supply power: 8kW, 380V, 50Hz.

l) Working environment: Room temperature of 10-35 ℃, humidity of 20% -80%

2.5 Main Configuration

a) One 1000kN host; (The machine adopts a desktop dual space structure, with the sample placed in the lower space. The horizontal beam can be adjusted infinitely, and the test space can be changed after replacing the column, screw, and outer cover. The transmission system consists of an imported servo controlled reducer, a circular arc synchronous toothed belt, and a ball screw pair, which runs smoothly and has low noise. It is pollution-free.)

b) Pressure plate: undergo heat treatment, with a surface hardness of not less than 55HRC.

c) A set of spring stretching attachments;

d) A set of Panasonic servo speed control system from Japan;

e) A set of Panasonic servo motors from Japan;

f) Deceleration system: (NEUGRART, Germany)

g) High ball screw: ≥ ∧ 125mm

h) Three load sensors: (Shiquan, USA)

i) Omron photoelectric encoder from Japan;

j) Column: Four standing structure, chrome plated, diameter Φ 100

k) Pull rod: cross universal joint and ball joint universal swivel

l) Lenovo brand computer (mainstream configuration, LCD display);

m) HP A4 inkjet printer;

n) WINDOWS compatible control software. (The software was developed by Zhejiang University, and the concept of "microcomputer control" was first proposed in China in 1994. Later, it was jointly developed and researched by the Building Materials Bureau. It is a fully functional, controlled, and analytical testing machine software in the Chinese testing machine industry, and is also widely used in the domestic testing machine industry.)