796 Каталог HOFFMANN GROUP 2015 Инструмент режущий слесарный измерительный Стр.796

Каталог HOFFMANN GROUP 2015 Tools Инструменты Ver 46 Стр. 796 0796 ENG Lab2u

Vacuum clamping technology What is vacuum clamping A vacuum is being produced under the workpiece to be clamped, so that the workpiece is clamped to the clamping plate by the pressure differential. The surface structure, the size of the workpiece, and the pressure differential are crucial for the clamping force / movement resistance force of the workpiece. Virtually all surface geometries of varying materials, including films and porous materials, can be securely clamped using the vacuum technology. Vacuum clamping technology is suitable for milling, grinding, turning, inspecting, measuring, coating, laser cutting, polishing, drilling, deburring, engraving, and assembly. Highly accurate clamping, the avoidance of damage, and the automation of production require new clamping systems. Advantages of vacuum clamping Clamping of pressure-sensitive workpieces, therefore no damage or distortion to the component. Clamping of very thin sheets or films. 5-face machining in a single clamping. No vibration during machining. Reduced clamping times due to quick clamp / quick release process (< 1 second). Compatible with the GARANT ZeroClamp zero point clamping system. Non-magnetic materials can be clamped. Which is the right vacuum clamping system Different materials and machining processes require the correct choice of the vacuum clamping system. Please contact our technical advisors if you require further assistance. An overview of various systems for secure clamping of your components Modular grid vacuum plates Patented Vac-Mat system Slit vacuum plates Micro-porous vacuum plates For heavy-duty machining of simpleshaped workpieces with rough surfaces. Grid vacuum plates of high-tensile aluminium or steel. Sealing cords compensate minor surface irregularities and bulges. Special shapes and sizes available in all dimensions. Grid spacing dependent on workpiece contour and size. High clamping forces, universal application, secure clamping of unmachined workpiece surfaces, since the clamping face has a high coefficient of friction. A wide spectrum of shapes of workpieces can be clamped. Thin soft reusable plastic mats with vacuum holes, suckers in various sizes, with elastic lips on the upper face and fine holes in the centre. High clamping forces, clamping faces with high coefficient of friction. Milling of external and internal contours can be performed, yielding precise and clean burr-free cut edges on the workpiece. No scratching of surfaces, therefore suitable for sensitive materials. Significantly reduced set-up times when changing over workpieces. The clamping surfaces are provided with slits. Clamping is achieved using rubber adapter mats or covering films, which are laid between the workpiece and vacuum plate. The mat is perforated to match the outline of the workpiece. It is then laid on the surface of the vacuum slit plate and suction is applied to it and to the workpiece. The outstanding coefficient of friction offers good resistance to the movement forces that arise during machining. Preferable for thin-walled, fine or soft workpieces such as paper, film, circuit boards, metal strips, lenses, rubber. Also suitable for measurement and inspection processes in the micrometre or nanometre range, for precision machining and in silicon wafer production. Depending on the application, the clamping surfaces can consist of permeable sintered bronze, ceramic or porous aluminium. The special characteristics of METAPOR open up a wide variety of application fields and new types of solutions to problems. No deformation of the workpieces. Main catalogue Hoffmann Group 46