Do you want the instrument to have a small footprint? Want to achieve high-precision measurement? Do you want the instrument to have long-term stable accuracy? Want to measure with high efficiency? Mizar Gold high-precision series three coordinate is your choice.

1、 Mizar Gold Performance Parameters

Mizar Gold is a high-precision version of the mobile bridge coordinate measuring machine newly launched by Zhongtu Instrument. Equipped with self-developed Alpha controller, CP500S high-precision scanning probe, and measurement software PowerDMIS, it can accurately measure the size, shape, and mutual position relationship of various components, as well as perform optical scanning measurement on soft materials or complex parts. Support the selection of independently developed probe replacement racks, imaging cameras, precision turntables, and other accessories for Zhongtu Instrument. At the same time, it also supports the measurement of special parts, such as blades, discs, etc.

2、 How Mizar Gold achieves small footprint

High precision coordinate measuring machines are mostly in the form of fixed bridges, which have high accuracy but occupy a relatively large area. Compared to fixed bridges, Mizar Gold has a smaller footprint, lighter overall weight, and is easy to transport and install.

3、 How Mizar Gold achieves high precision

I believe everyone will find a phenomenon when using Coordinate Measuring Detection Error (MPEP), that is, the more vertical compensation values (if the vertical structure is not adjusted properly, the verticality is compensated through software), the worse the detection error?

The error compensation of the three coordinate system mainly involves compensating for 21 systematic errors in the structure through software. Due to the fact that a three coordinate machine has X/Y/Z translation axes, errors such as straightness are relatively easy to compensate for through the movement of the host, while angle errors are converted into translation through algorithms for compensation. However, in terms of structure, angles always exist and cannot be eliminated, resulting in residual errors caused by angles.

Mizar Gold uses ceramic crossbeams and Z-axis, ensuring that the plane accuracy of the crossbeam and Z-axis is within 2 μ m, and the angle error of the entire machine is controlled within 2 arcseconds. At the same time, the rigidity of ceramics is much better than that of granite and aluminum alloys, so the crossbeam has almost no deformation when subjected to sliding frame pressure. Therefore, by reducing the structural error of the system and decreasing the compensation amount, the accuracy of the system can be improved.

4、 How Mizar Gold achieves stability improvement

Using granite or aluminum alloy makes it difficult to ensure long-term stability, while using ceramics can keep the guide rail stable for a long time.

As shown in the figure below, for the same machine with different beam materials, the angle swing of the XRY beam was tested for a long time. The angle swing of the ceramic beam remained stable within 0.5 arc seconds, while the fluctuation of the XRY angle swing of the aluminum alloy beam was within 2 arc seconds.

Secondly, by designing the transmission of the reducer as a multi ribbed belt, the vibration and scraping during the transmission process of the reducer can be reduced, thereby reducing the uncertainty caused by tooth meshing during machine measurement and improving stability.

In addition, the three-axis adopts non-metallic materials with low and basically the same thermal expansion coefficient, achieving three-axis thermal matching.

Moreover, Mizar Gold is equipped with a temperature sensor that can compensate for temperature changes. Thereby improving the accuracy and stability of the equipment.

5、 How Mizar Gold achieves efficiency improvement

The main way for machines to improve efficiency is to increase the speed and acceleration of the equipment

Firstly, improve the rigidity of the equipment. The crossbeam and Z-axis are designed with ceramic (99 ceramic), with an elastic modulus of 300-400GPa for ceramic, and around 70GPa for granite and aluminum alloy, which can significantly improve the rigidity of the crossbeam and Z-axis.

Secondly, reduce the weight of equipment operation. Ceramics, aluminum alloys, and granite have similar densities. Moreover, the entire structure has undergone finite element analysis to ensure lightweight and good rigidity.

Again, improve the rigidity of the transmission. Adopting high rigidity steel ribbon transmission, the reducer adopts high rigidity multi wedge belt to increase the rigidity of the transmission.

VI. Summary

Mizar Gold is a high-precision, high stability, and high-efficiency mobile bridge coordinate system launched by Zhongtu Instrument, providing a more cost-effective option for your high-precision parts.