COMPANY PRODUCT

1. Simple Introduction：
The spring tension and compression testing machine is a special testing equipment designed and manufactured in accordance with the spring test specifications stipulated by the national standard. It is suitable for testing the performance of various springs such as tension and compression springs, damping springs, gas springs, wave springs, etc.; it is the preferred testing equipment for spring manufacturers, spring users, and major testing institutions.
The testing machine uses a micro AC servo motor as a power source; it adopts advanced chip integration technology, a professionally designed PCI data acquisition amplification and control system, the test force, deformation amplification, and A/D conversion process realize the full digitalization of control and display Adjustment. The computer-controlled tension and compression spring testing machine is made according to the technical requirements specified in JB/T7796-2005 "Technical Conditions for Tension and Compression Spring Testing Machines". This type of tension and compression spring testing machine is mainly used to test the strength of various coil springs and elastic elements, that is, test the test force of the spring under a certain amount of deformation (or height) or measure the height or deformation of the spring under a certain test force the amount.
Testing machine execution standard:
JJF 1134-2005 Calibration specification for special working measuring machine,
GB/T 13634 Calibration of dynamometer for testing machine inspection.

2. Product composition system:
1. Main machine: large processing center processing, high processing accuracy, good material; the machine body adopts door structure, four-column type, and selects domestic high-quality ball screws to ensure the rigidity of the whole machine, which is better than the modification of the tensile testing machine in the industry. model.
2. Transmission system: It is composed of deceleration system, precision ball screw and guiding part.
3. Drive system: load loading is realized by AC servo speed governor and motor.
4. Measurement control system: The test force measurement control system is composed of high-precision load sensors, measuring amplifiers, A/D conversion, switching power supplies, etc.; the displacement measurement control system is composed of photoelectric encoders, frequency multiplying shaping circuits, and counting circuits. Through various signal processing, computer display, control and data processing functions are realized.
5. Safety protection device: sample break shutdown, overload protection, beam limit position protection, overcurrent, overvoltage, overspeed protection, etc.
 
3.  Main Technical Parameters:
1. Maximum test force: 2000N
2. Effective measuring range of test force: 1%-100%FS accuracy≤1%
3. The minimum reading value of the test force: 0.01N
4. Minimum reading value of displacement: 0.0012mm
5. Displacement accuracy: ≤±(50+0.15)L
6. Loading speed: 0.05-300 mm/min (stepless speed regulation and arbitrary setting can be realized)
7. Effective test space of testing machine: ≥280mm
8. Diameter of pressure plate: 120mm
9. Test machine size (length * width * height): 550*350*1400mm
10. Weight of testing machine: about 200kg
11. Power of the whole machine: 0.75kw
12. Protection link: movable beam position protection (limit), protection of test force exceeding 10% of rated load, protection of fast breaking shutdown, automatic protection of drive system over current.
13. Display mode: computer screen display, Windows operating platform, screen display test force, displacement, beam moving speed, test machine working status, test force-displacement curve and various pull-down menus, etc., man-machine dialogue mode, easy to operate.
 
Function Introduction:
(a) The machine adopts a built-in controller, which ensures that the test machine can realize constant velocity displacement test.
The electrical control circuit refers to the international standard, conforms to the electrical standard of the national testing machine, and has strong anti-interference ability, which ensures the stability of the controller and the accuracy of the experimental data.
(b) Measurement method: automatic and jog (button to move up and down) measurement at the same time; step-by-step measurement
(c) When automatically measuring the load, the beam drops directly from the preset height to the heights 1, 2, 3 that need to be detected, and then automatically returns to the preset height to measure the load of different springs cyclically, and only the load that needs to be detected is displayed).
(d) With automatic return function: height and load can be automatically returned to zero (the pressure plate surface below the height is zero, and it is automatically returned to zero).
(e) Automatically measure the load of different remaining heights of the spring, the elastic coefficient between the two heights of the spring, the height of the spring and the winding height, and stop at any specified height; load error: ±1% of the indicated value, height error: ±0.05mm .
(e) When automatically measuring the spring, input the measurement conditions (remaining height of the spring) and the judgment value before measuring. After the measurement, the system can automatically make a comprehensive judgment of whether it is qualified or not, and an alarm will be displayed when it is unqualified.
(f) For automatic measurement, continuous measurement of multiple samples can be performed continuously; when the load and elastic coefficient of a specified height can also be automatically measured, each measurement cycle can include 1 to 3 measurement conditions (remaining height of the spring)
(g) Automatic gear shifting: automatically switch to the appropriate range according to the load size to ensure the accuracy of the measurement data; realizing the real physical zeroing, gain adjustment and automatic shifting, zeroing and calibration of test force measurement And save, without any analog adjustment link, the control circuit is highly integrated
(h) Condition saving: test control data and sample conditions can be made into modules, which facilitates batch testing;
(i) Automatic transmission: The speed of moving the beam during the test can be changed automatically according to a preset program, or it can be changed manually;
(j) Automatic calibration: the system can automatically achieve the calibration of the accuracy of the indication;
(k) Automatic save: the test data and curve are automatically saved after the test is over;
(l) Process realization: the test process, measurement, display and analysis are all completed by the microcomputer;
(m) Test software: English WINDOWS interface, menu prompt, mouse operation;
(n) Display mode: data and curves are displayed dynamically along with the test process;
(o) Curve traversal: After the test is completed, the curve can be re-analyzed, and the test data corresponding to any point on the curve can be found with the mouse;
(p)Curve selection: force-deformation, force-time, deformation-time and other curves can be selected for display and printing according to needs;
(q) Test report: The report can be prepared and printed in the format required by the user; it has a network interface, which can carry out data transmission, storage, printing records and network transmission and printing, and can be connected to the internal LAN or Internet network of the enterprise.
(r) Limit protection: with two levels of program control and mechanical limit protection;
(s) Overload protection: When the load exceeds 3-5% of the maximum value of each gear, it will automatically stop;
The test results are obtained in two modes of automatic and manual, and reports are automatically formed, making the data analysis process simple and convenient.