Definition principle and classification difference

2022-08-03
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Definition principle and classification difference of CMM

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definition principle and classification difference of CMM

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core e.g. 2 silica aerogel has a high operating temperature prompt: CMM, coordinate measuring machine in English, It refers to an instrument that can calculate various geometric shapes, dimensions and other measurement capabilities through a three-dimensional software system according to the point data returned by the probe system in a three-dimensional measurable space. It is also called a three-dimensional coordinate measuring instrument or a three-dimensional measuring bed. Coordinate measuring machine (CMM) refers to an instrument that can enhance the ability to deal with trade protectionism according to the point data returned by the probe system within the three-dimensional measurable space, and calculate the measurement ability of various shapes and sizes through the three-dimensional software system. It is also called coordinate measuring instrument or coordinate measuring bed

the basic principle of CMM is to put the measured part into its allowable measurement space, accurately measure the values of the points on the surface of the measured part at three coordinate positions in space, process the coordinate values of these points by computer, fit them to form measurement elements, such as circle, ball, cylinder, cone, curved surface, etc., and obtain their shape, position tolerance and other geometric data through mathematical calculation

coordinate measuring instrument can be defined as an instrument with a detector that can move in three directions and can move on three mutually perpendicular guide rails. The detector transmits signals in contact or non-contact ways. The displacement measuring system of three axes (such as optical ruler) calculates the coordinates of each point (x, y, Z) and various functions of the workpiece through data processor or computer. The measuring functions of the CMM shall include dimensional accuracy measurement, positioning accuracy measurement, geometric accuracy measurement, contour accuracy measurement, etc

there are great differences between the manual CMM and the NC three-dimensional measuring instrument in many aspects, including design principle, technical structure, use characteristics, maintenance methods, etc. eccoh materials can meet the strict regulations on smoke and toxicity. In order to make it easier for everyone to understand and ensure the understanding of users, we will explain the performance advantages between the two

the manual CMM has the advantages of projector, tool microscope and CMM, so it is especially suitable for the measurement of electronic products, thin-wall parts, micro space and other workpieces with special requirements. In addition, the manual CMM can perfectly combine image measurement with trigger measurement, and different measurement methods can be selected according to the characteristics of the workpiece. The manual CMM can carry out the combined correction and measurement of optical and trigger probe

different from the manual three-dimensional coordinate, the z-axis of the NC three-dimensional measuring instrument adopts a pneumatic balance device, which can easily adjust the balance force when configured with different probe systems to make the movement reach the best state. The three-axis of the NC three-dimensional measuring machine adopts high-performance synchronous belt transmission, which can obtain very high movement speed and acceleration to improve the measurement efficiency. The nonlinear spring system of the NC three-dimensional element, It reduces the influence of the small error of the guide rail on the measurement accuracy and ensures that the equipment has higher adaptability to the ambient temperature. In addition, the CNC cubic element measuring instrument adopts a unique guide rail section to ensure the maximum span of the guide air bearing under the condition of minimum inertia

based on the above information, we can clearly understand the relationship between the two at a glance. There are great differences between them. At the same time, 4. There are certain connections in the operation of the unit. The biggest difference is that the foundation and mode of operation are different. Even so, they are at least the same in terms of work objectives, and both exist for the purpose of measurement

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