1. Application characteristics of JBW-300C /500C microcomputer controlled pendulum impact testing machine

1. Introduction:

The JBW-300C /500C microcomputer controlled pendulum impact testing machine is a new type of impact testing machine product launched by the company in China. After continuous technical updates and improvements in recent years, the product has reached the domestic advanced technical level. It is also exported to Australia, India, Malaysia, Turkey, Brazil and other countries, and has been well received by users at home and abroad.

2. Field of use:

This machine is suitable for measuring the impact toughness value of metal materials and the impact resistance of metal materials under dynamic load in various fields such as machinery metallurgy, aerospace, colleges, universities, and research institutes.

3. According to the standard :

1) GB/T3038-2002 "Inspection of Pendulum Impact Tester"

2) GB/T229—2007 "Metal Charpy Notch Impact Test Method"

3) JJG145- 2007 " Verification Regulation of Pendulum Impact Testing Machine "

2. Main features of JBW-300C /500C microcomputer controlled pendulum impact testing machine

1. The JBW-300C /500C microcomputer controlled pendulum impact tester is composed of a microcomputer and an industrial PLC programmable controller upper and lower two-level control system. The upper computer mainly completes the fully automated control, data processing and data management of the test process. Data printing, the lower computer completes the whole process of fetching, impacting, automatically raising the pendulum, and then impacting multiple tests according to the instructions of the host computer. After impacting the sample, the PLC programmable controller can transmit the collected test data such as the impact absorption energy to the microcomputer through the RS-232 interface. The test software can automatically save the test data in the database and import the test report to In the test report template (Excel format), the test report can be consulted and printed out at any time.

2. Advanced control principle

1) This machine adopts the PLC programmable controller produced by Siemens, Germany, to realize the fully automatic control of pendulum fetching, impact, automatic pendulum swing, and re-impact multiple tests during impact test. Data processing and data printing are possible. Features.

2) Test data can be automatically obtained after impacting the sample. Use Siemens PLC (or use high-precision PCI bus control card) to collect data, control the pendulum movement, completely avoid the interference of the single-chip control system, and ensure that every data collected is absolutely correct, and every action is controlled accurately . Prevent damage to the equipment due to incorrect actions caused by inaccurate control caused by interference (especially damage to the jaw clutch).

3) It has the advantages of simple operation, high reliability, strong anti-interference ability, versatility, adaptability, strong expansibility, small maintenance workload, and high work efficiency. It is better to demonstrate its superiority in steel manufacturers, machinery factories, scientific research institutions and universities that do continuous impact tests.

4) The data acquisition system has high resolution. The angular resolution is 0.1 degrees, and the accuracy is about 10 times higher than that of the dial pendulum, which ensures the measurement accuracy .

5. The base and column of the main frame are processed by casting, the rigidity of the main frame is greatly improved, and the stability of the test is greatly improved; the pendulum shaft is supported by simply supported beams, and the radial load distribution of the bearing is reasonable, which greatly reduces the energy caused by bearing friction. The impact absorption energy of the empty pendulum is less than 0.3%; the single standard geared motor is used to lift the hammer, which greatly reduces the complexity of the hammer lifting system and avoids the problems in the assembly and use of the previous deceleration link; the suspension device adopts spring buffer, sound Small and stable.

6. The square pendulum body design of the pendulum adopts 3D software design analysis to ensure the accuracy of the strike center and the precise moment of the pendulum, which fundamentally guarantees the accuracy of the detection data.

7. Built-in national standard energy loss correction program, so that every test result is corrected in accordance with the standard requirements, and the test result is more accurate. And it has equipment calibration function.

8. The main electrical components of the control circuit are produced by well-known foreign or Sino-foreign joint ventures to ensure the reliability and stability of the equipment.

9. This machine is not only designed with a safety protection pin protection device in the control circuit, but also equipped with a fully enclosed protective cover to completely protect personal safety, safer and more reliable to use, and beautiful in appearance.

10. The whole machine adopts high-grade automobile special paint and a well-designed color scheme. The whole equipment has an elegant appearance and is coordinated with the overall good working environment of the quality inspection department.

11. Add a low temperature test device, which can also be used for low temperature impact test. Low temperature specifications: -30°, -40°, -60°, -80°, -100°, -190°.

3. The main technical indicators of JBW-300C /500C microcomputer-controlled pendulum impact testing machine :