The Development Trend of Three-coordinate Measuring Machine

1. The development strategy of the three-coordinate Measuring Machine

1.1 Improving the measurement accuracy of the measuring machine

Firstly, the scale accuracy should be enhanced. Under the current development trend of modern semiconductor lasers, laser interferometer scales are widely used in measurement work. In three-coordinate measuring machines, the application of such scales has its own characteristics. In practical applications, it can avoid the impact of heat generated by the laser on the accuracy of the measuring machine.

In practical application and measurement, special attention should be paid to the compensation of refractive index. The ideal light propagation is for the light to pass through the vacuum. However, research in this area is still relatively scarce at present. The main reason is that when moving in a closed optical path, although the inside of the optical path is vacuum, the outside is the atmosphere. When there is a change in the external atmospheric pressure, it will cause the slide seat to deform, thus leading to measurement errors.

In terms of improving the measurement accuracy of the measuring machine, one can start from the structure as the entry point, focusing on the accuracy of the measuring head, the main unit, the indexing table and the accessories. Additionally, in the absence of the influence of environmental factors, it is possible to effectively prevent deformation due to external forces and thermal deformation, thereby enhancing the measurement accuracy. Therefore, attention should also be paid to environmental factors.

1.2 Enhancing the Efficiency of the Measuring Machine

As the pace of modern industrial production continues to accelerate, in the actual measurement process, not only the accuracy but also a high rate of productivity must be ensured. In order to improve the working efficiency of the three-coordinate measuring machine, the following aspects can be taken as starting points:

Firstly, the structure of the measuring machine is improved by reducing the mass of the moving parts.  Among the materials cOmmonly used in modern measuring machines are ceramic materials, aluminum materials, and synthetic materials.

Secondly, enhance the operability of the measurement machine system. When the measurement machine is in high-speed movement, it is necessary to ensure that its movement remains stable and there are no oscillations.

Thirdly, during the measurement process, a scanning measurement method is selected. Therefore, the contact speed between the Probe and the workpiece cannot be too high, which will inevitably impose certain limitations on the detection speed. For the point measurement method, its efficiency is not as high as that of the scanning measurement method. However, it is still subject to the probe contact limitation. By choosing anon-contact probe to perform measurements during the continuous movement of the measuring machine, frequent acceleration, collision, and deceleration can be achieved, thereby effectively improving the working efficiency of the measuring machine.

Fourthly, increase the software running speed. During the actual operation of the three-coordinate measuring machine, the software running speed is not the main influencing factor. However, when the three-coordinate measuring machine is moving at high speed, it will have a significant impact on it. Therefore, in order to ensure that it does not affect the efficiency of the measuring machine, the software running speed of the measuring machine should be increased.

1.3 Further Improving the CMM Technology

For the three-dimensional coordinate measuring machine technology, the main aspect is the detection technology. The detection technology mainly relies on the ability of the main probe to reach. As long as the main probe can reach, CMM can perform the measurement. In the actual measurement process, the detection speed has a direct impact on the measurement efficiency of the measuring machine. In order to better improve the CMM technology and various accessories should also be developed.

In the development process of CMM technology, an important aspect is the application of non-contact probes. These probes can achieve high-speed detection. Using cameras, contour lines can be formed, thereby enabling accurate measurement. Non-contact probes can measure soft, scratched, and easily deformed workpieces. They can form smaller light spots, and can perform better measurements in areas where the contact end cannot easily enter. In many cases, their measurements are very important. The advantages of non-contact probes include strong reflectivity and the ability to self-focusing.

In conclusion, in the modern measurement process, CMM is a very important measuring tool, and its development is also accelerating. In order to enable the three-coordinate measuring machine to achieve better application effects, effective approaches and strategies should be adopted to promote its better development, and the development trend should be grasped so as to provide better guarantees for its better development and application.

Please contact us if any questions or advice at overseas0711@vip.163.com