Shanghai Spring Testing Machine

Shanghai Spring Testing MachineTechnical parameters and indicators:

Shanghai Spring Testing MachineScheme description:

3.1 Host: Adopting a gantry structure, the host frame is fully guaranteed in terms of stiffness and strength through mechanical finite element analysis. The transmission system adopts zero clearance ball screw pairs to ensure the accuracy and durability of the test results. The main frame is guided by guide columns to ensure the rigidity of the frame.

3.2 Transmission system: composed of synchronous toothed belt, precision ball screw pair, and guiding part.

3.3 Drive System: The system is driven by a CNC speed controller and its motor.

3.4 Measurement and Control System: The test force measurement and control system consists of high-precision load sensors, measurement amplifiers, A/D converters, stabilized power supplies, etc; The displacement measurement control system consists of a photoelectric encoder, a frequency doubling shaping circuit, a counting circuit, etc. Through various signal processing, achieve functions such as computer display, control, and data processing

3.5 Safety protection devices: 10% overload protection for excess rated load, limit position protection for crossbeam, overcurrent, overvoltage, overspeed protection, etc.

3.6 Control software system

3.6.1 The measurement and control software consists of functional modules such as dynamic communication, data acquisition, result observation, record query, data processing, and printing. Ensured the efficiency and accuracy of data collection, and the result output is convenient and fast.

In terms of appearance, this measurement and control software has the advantages of clear and beautiful interface, and easy operation. (The main interface is as follows)

3.6.2 Different experimental plans can be established according to the needs. Multiple batch numbers can be established under one plan for batch testing. During the testing process, real-time data collection and curve drawing can be carried out, and a large Access database can be used for data storage, facilitating user resource sharing and reanalysis. After the experiment is completed, the data is automatically processed and saved, and the test results can be viewed and the test report can be printed at any time. The format of the test report can be changed according to different user requirements. The processing of test data by the testing machine conforms to the standards of spring testing machines.

3.6.3 Control Methods: Multiple control methods are used, as described below:

a) Set the test force P and detect the deformation amount F of the spring

b) Set the deformation amount F and detect the test force P of the spring.

c) Set the test force P and detect the remaining height H of the spring;

d) Set the remaining height H of the spring and detect the test force P of the spring;

3.6.4 Ten detection points can be set. The spring can be pre compressed by setting the pre compression height, and the number of pre compressions can be freely set.

3.6.5 Batch testing greatly facilitates user use. After setting the number of tests, the testing machine automatically conducts tests based on the set number of times, without the need for manual intervention.

During the testing process, high-speed approximation and low-speed acquisition were achieved to ensure the efficiency and accuracy of data acquisition by the testing machine.

3.6.7 Set the test speed by yourself and automatically return to the initial position after the test is completed.

3.6.8 has an overload automatic shutdown function.

3.6.9 Configure a manual micro feed device that can achieve micro feed under various load conditions, facilitating calibration and displacement adjustment.

3.6.10 Can automatically calculate the segmented stiffness P/of the compression spring.

3.6.11 Software Calibration Section

1) Force calibration: Using a three-point calibration method to make the test force more accurate and precise.

2) Displacement compensation: The deformation caused by the sensor can be compensated for. The deformation caused by the sensor and the overall stiffness does not affect the accuracy of displacement.

3.7 Safety Features:

3.7.1 Adopting high-speed disc alignment function, the upper pressure disc will automatically align at a speed of 300mm/min, and then automatically set the displacement to zero, determining the lower pressure disc as the displacement zero point. Then automatically return to a stop 50mm away from the lower pressure plate. Improve the accuracy of the testing machine to meet higher requirements and reduce the randomness of manual disk merging.

3.7.2 It has a limit function and a limit protection switch at the two extreme positions of tension and compression to prevent misoperation.

3.7.3 It has a strong setting function, effectively preventing the spring from causing damage to the equipment in case of accidents.

3.7.4 Equipped with displacement protection setting function

3.7.5 With deformation protection setting function

3.7.6 has an emergency stop function, which can be used to stop the machine in case of accidents during the test.

3.8 Data Printing Content Description

It is possible to classify and print test data from different experimental modes.