1. Product overview

(1) Project introduction: The touch screen controlled digital display impact testing machine is a new type of impact testing machine product that the company took the lead to launch in the country recently. After continuous technical updates and improvements in recent years, the product has reached the domestic advanced technology The level of users involved in iron and steel metallurgy, machinery manufacturing, colleges and universities, scientific research institutes and other fields . The product is also exported to Australia, India, Malaysia, Turkey, Brazil and other countries, and has won unanimous praise from users at home and abroad.

(2) Application field: 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 mechanical metallurgy, aerospace, colleges and universities, scientific research institutes.

(C) According to the standard: JB S- 300 B / 500B Digital Charpy impact test machine is the company strictly in accordance with GB / T3038 - 2002 > and GB / T229 - 2007 > design, according to JJG145- 2007 "pendulum impact tester" factory inspection.

(4) Program description:

1) The unique appearance of the product is novel, beautiful and generous;

2) In terms of structure, the pendulum suspension adopts a simply supported beam structure, and the force method is more reasonable;

3) In terms of transmission, a standard reducer is used to replace the original belt wheel and worm wheel, and the structure is simpler;

4) In terms of electrical appliances, the equipment adopts Siemens PLC programmable controller control, and uses photoelectric proximity switches to replace most of the original mechanical limit, with strong anti-interference ability, accurate test data and more reliable performance;

5) Reliable safety pin device and novel protective fence make the operator safer;

6) The door-opening type strong electric board makes maintenance easier.

7) The equipment uses a dual-brush clutch to replace the old-style single-brush clutch, which solves the problem that the equipment is satisfied with the three-phase four-wire system and the three-phase five-wire system at the same time. The electrical control circuit refers to international standards and conforms to the national electrical standards for testing machines.

8) The working principle of this equipment is to use a high-precision photoelectric encoder and a liquid crystal display with a special measurement and control card to detect the impact absorption energy and the impact toughness of the material by detecting the difference between the potential energy before and after the impact of the pendulum.

9 The display mode is dual display: that is, the dial pointer and the liquid crystal display are displayed at the same time; the liquid crystal display can not only display impact absorption energy, impact toughness, but also automatically process test data and automatically generate test reports.

10) The action control of fetching, unloading, impact, and placing can be controlled manually by the hand control box, or can be automatically controlled by the mouse input using the LCD program, and the test results can be printed in batches or successively.

11) The industrial Siemens PLC control system is used to control the pendulum action, and the high-precision rotary encoder is used to obtain the real-time position of the pendulum. The system is stable and reliable, and the data is accurate. The Chinese text display can display the pendulum angle and test results in real time, which is convenient The input of various parameters is simple and convenient. The LAN interface is reserved .

12) The machine can be increased adding configure accordance GB229-2007 "metal Charpy notch impact test" low temperature test standard requirements and design of electronic equipment in refrigeration insulation. It has no chemical pollution, no noise, small size, simple operation and high control precision. It is an ideal sample cooling and heat preservation equipment in the impact test of metal materials. It can also be used for other low-temperature detection and testing. The working principle is to use semiconductor electronic components to generate temperature difference when energized. When the heat in the high temperature area is continuously taken away, in order to maintain the temperature difference between the low temperature area and the high temperature area, the temperature of the area is continuously reduced to cool down.

(5) Working principle: The German Siemens PLC is used as the lower computer control, and the LCD control is used as the upper computer control to complete the data exchange and instruction transmission between the upper and lower computers. A high-precision rotary encoder is used to obtain the real-time position of the pendulum and obtain the impact absorption work. It has the characteristics of system reliability, stability, and accurate data. ( 6 ) Introduction of digital display function

1 ) Language interface: support both Chinese and English operating languages, you can switch between Chinese and English before entering the test interface;

2 ) Semi-automated: First take the pendulum manually during the test, and manually discharge the material after completion, and then carry out the return and impact. After the impact, the device automatically fetches the pendulum. After each experiment is completed, the system display area will display the impact energy and impact toughness. Three tests are a group. After a group is completed, the system automatically calculates the average value of the three impact energy.

3 ) Storage function: 100 sets of experimental data can be stored, including test name, test original value, average value, test time and other information.

4 ) Print function: (optional ) print the current test data through a micro printer.

5 ) Multi-level energy: The equipment supports multiple heavy hammers with different energy levels.

6 ) Screen introduction: The machine screen has a total of 6 language selection interface, main operation interface, storage recall interface, password input interface, system setting and printing screen, etc., 6 in both Chinese and English .

2. Specification parameter table of JB S— 300 B /500B digital pendulum impact testing machine