The principle of the roundness meter is the same as that of the three coordinate measuring machine. In fact, its working principle is very simple. The three coordinate measuring machine is a point acquisition tool. Its principle is to first acquire points, then form a line from points, and then form a three-dimensional model from lines. CMM is a kind of measuring equipment with guiding mechanism, length measuring element and digital display device in three mutually perpendicular directions, a workbench (not necessarily large or giant) that can place workpieces, the measuring head can be moved to the measured point quickly and manually or mechanically, and the coordinate value of the measured point is displayed by the data reading equipment and digital display device. Obviously, this is the simplest and most primitive measuring machine. With this measuring machine, the coordinate value of any point in the measuring volume can be displayed through a reading device and a digital display device.
Features of roundness and cylindricity measuring instrument:
·The main shaft adopts ultra high precision air floating shaft, so that the instrument has the advantages of high rotation accuracy, good stability, strong bearing capacity, non-contact, non wear, and long life, reaching the national first-class accuracy standard.
·The worktable and column are made of natural granite to make the mechanical performance of the instrument more stable and reliable, without deformation, drift and beautiful.
·The two-stage built-in air filter, a protective pressure relay and an oil-water separator device make the working air pressure of compressed air stable, clean and dry, and ensure good rotation stability and high accuracy of the air floating spindle.
·The spindle motor adopts high-precision speed regulating motor, which makes the instrument spindle rotate stably and reliably
·The vertical and horizontal movement of the sensor is driven by a linear motor, which makes the instrument easy to operate and accurate to adjust.
·2048 line/cycle high-precision rotary encoder is adopted to ensure the data sampling resolution.
·The inductance signal measuring circuit of the instrument is a high-precision LVDT special circuit independently developed by our company. The measuring accuracy and stability are at the leading level in China.
·The special measurement analysis management software based on Windows XP operating system has the functions of automatic collection, automatic correction of eccentricity, instrument calibration, digital filtering, measurement parameter evaluation in accordance with the latest ISO standard, measurement result database archiving, printing and output, etc
This instrument is based on the precision air floating spindle and high-precision column guide rail. It is a turntable cylindricity instrument with a computer measurement system. It is mainly used to measure the roundness, cylindricity, waviness, coaxiality, concentricity, perpendicularity, parallelism, straightness and other parameters of rotary workpieces such as rings and cylinders. It can be widely used in automobile parts, bearings, machine tools, oil pump nozzles Aerospace and other precision machinery manufacturing enterprises, colleges and universities, scientific research institutes, measurement institutions, etc. The instrument is mainly composed of high-precision air floating spindle, precision leveling and centering worktable, high-precision granite column, granite table top, high-precision inductive probe, precision rotary encoder, drive control electric box, high-precision measurement electric box, air filtering and drying system and special measurement and analysis software based on Windows XP.
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