Stationary Coordinate Measuring Machines
Stationary coordinate measuring machines (CMM) are designed to measure the geometric characteristics of objects. They are controlled by a built-in controller and a control program. CMMs can be programmed to measure the same type of products. Measurements are made using a probe mounted on the third movable axis of the machine. Probes can be mechanical, optical and laser. Laser scanning heads allow high-precision scanning of the controlled part.
The most common "bridge" CMM. The probe moves along three axes (X, Y and Z). These three axes are orthogonal to each other, as in the usual three-axis coordinate system. Each axis contains a scale ruler that determines the position of the probe along the axis. The mode of reading data from the probe is determined by the operator or the program. As a rule, machines read the coordinates of each point with micron precision.
Stationary CMMs can have the following functions and capabilities:
Possibility of offline programming: Machines can be programmed outside of working hours to optimize the measurement process.
Collision protection of the probe with the measured part: Machines are usually equipped with a protection system that prevents damage to the part or the probe in case of unforeseen collisions.
Reverse engineering: CMMs can be used to create a three-dimensional model of an object based on its measurements. This is useful for reverse engineering or creating CAD models.
Possibility of installation in the workshop: Stationary CMMs can be installed directly on the production line or in the workshop for quick quality control and measurements.
Temperature compensation: Some CMMs have the ability to compensate for the effect of temperature changes on measurements, providing more accurate results.
Ability to import CAD models: CMMs can work with imported CAD models of objects, allowing you to compare the measured data with the specified parameters of the model.
Compatibility with the DMIS Standard: DMIS (Dimensional Measuring Interface Standard) is a standard for programming and data exchange between different CMMs. Compatibility with DMIS provides versatility and information exchange.
The open source controller I++: I++ (I++ DME Interface) is an industrial interface that provides communication between the CMM and the control software. Open source I++ controllers provide the ability to integrate and exchange data with various systems and programs.
Stationary CMMs with a "bridge" design are widely used in various industries. The upper movable part of the CMM consists of two supports, which together with the transverse guide form a bridge structure. The bridge is easily moved along the granite table with the help of a single support moving along the guide. The other support moves along the cross beam. Air bearings are used to ensure smooth and virtually frictionless movement of the bridge. Additionally, a vertical guide or spindle provides movement along the third axis (Z).
Thus, stationary CMMs make it possible to measure objects with high accuracy and control their geometric characteristics. They are an important tool in the field of quality control and ensuring accuracy in various industries.
Deltapro Automation LLC can supply you with a wide range of machines from the following manufacturers: Zeiss, Nikon, HEXAGONMetrology, TESATechnology, Werth, Coord, Wenzel, STIFELMAYER, AEH and Acura.