Use case of MCV-500

Application Introduction of MCV-500 Laser Doppler Measuring Instrument

Our Beijing Jingyi Automation Equipment Company (formerly Beijing Instrument Machine Tool Factory) is an enterprise specializing in manufacturing CNC machine tools. Including the production of CNC equipment such as CNC milling machines, CNC lathes and special CNC machine tools. In order to improve the precision of CNC machine tools and ensure the quality of machine tools, our company has been performing geometric accuracy and cutting tests before the machine leaves the factory for many years. At the same time, laser measuring instruments are used to detect the coordinate position accuracy and error compensation of each machine tool. Because the laser interferometer used for a long time has been malfunctioning frequently, it cannot be used normally. Therefore, our company purchased the MCV-500 laser Doppler measuring instrument of American Photodynamic Company through detailed comparison of the quality, performance and price of similar products of different manufacturers through market research in 2001.

Over the past 2 years, we have used MCV-500 to detect and compensate for the pitch error of hundreds of CNC machine tools and overhauled CNC machine tools of various models and specifications produced, so that the accuracy of each machine tool has reached the factory requirements and achieved good Economic benefits. After nearly 3 years of use, we believe that the instrument has the following characteristics:

1. Compact structure, small size, light weight and easy to carry.

Because MCV-500 uses the principle of Doppler frequency difference effect, the volume of the whole instrument is reduced

Small and more compact. Because it reduces one group of lenses and does not require a bulky tripod, it provides convenient conditions for carrying out maintenance inspections.

2. Easy to light, easy to adjust and flexible to operate.

The original laser interferometer of our company, the laser head is fixed with a tripod, the laser beam

After being emitted from the laser head, it needs to return to the laser head through the parallel mirror before it can be used. It generally takes more than 1 hour to align the light, especially the Z-axis vertical direction is more difficult, which greatly affects the detection effectiveness. The MCV-500 of American Photodynamic Company is very easy to light, because its laser head is small and can be placed at any position on the machine tool to be measured, without using a tripod. At the same time, since the 90º refracting mirror can be rotated arbitrarily at 360º, it is extremely convenient to measure the vertical direction. In addition, by adjusting the fine adjustment knob, the return light intensity can reach 100% in a short time.

3. Multi-purpose for one machine. MCV-500 can not only detect the linear displacement accuracy of the machine tool, but also

Software and software increase and expand the scope of use.

1). Adding LB-500 can detect the precision of the machine tool's circular trajectory (the laser non-contact has the same function as the ballbar). Through this test, the indicators such as the dynamic circular interpolation accuracy of the servo system, the backlash of the machine tool, and crawling can be detected.

2). Add SD-500 and volume measurement software to detect the spatial accuracy, straightness and verticality of the machine tool.

4. Automatic compensation for temperature and air pressure.

MCV-500 has automatic temperature and air pressure compensation. In the detection process, through the sensor

Continuous sampling of air pressure, ambient temperature and machine tool temperature, and transfer the collected data to the processor, and then continuously correct the relevant parameters, and then synchronously display the corrected data in the displacement window to ensure the accuracy of detection.

5. High performance-price ratio.

The price is one third lower than similar products of other manufacturers.

6. Good quality and stable and reliable operation.

For more than 2 years, we have used MCV-500 to inspect and compensate hundreds of CNC machine tools.

Ensure the quality of machine tool inspection, won a good reputation among users. These machine tools use a variety of CNC systems, such as Siemens, Fanuc, and Mitsubishi, which have achieved relatively satisfactory results. In the course of more than 2 years of use, the instrument did not have any failures. And regularly sent to the China Institute of Metrology for calibration every year, they have reached the following technical indicators:

1) Laser stability: 0.1PPM

2) Positioning accuracy: 1.0PPM (1µM / M)

3) Resolution: 0.01 µM

4) Measuring range: 15M

5) Measurement speed: 4M / sec

6) Working environment temperature: 5-39ºC

7) Working environment humidity: 0-96ºC

8) Altitude: 0-3000M

9) Power supply: 90-220VAC 50-60HZ

In short, through our actual use of the US company's MCV-500 laser Doppler measuring instrument, we are satisfied with the original choice. The product does have the characteristics of compact structure, light weight, easy installation and light, high precision and affordable price. It makes it easier for the operator to check the accuracy of the machine tool and make corrections, avoiding the worries about the machine tool leaving the factory, and it is the preferred instrument for the accuracy test of the machine tool.

Quality Department of Beijing Jingyi Century Automation Equipment Company