Термоусадочное оборудование DIEBOLD - страница 18

Shrinking 5 Shrinking 5.1 Basic shrink-fitting information Only tools with a ground shank and tolerance h4, h5 or h6 should be used. Tools with shank tolerance h7 cannot be securely clamped. The following shank tolerances are required for the various shank diameters: Shank Ø Shank Tolerance Type of Tool 3mm h4 HM 4mm h4 HM 5mm h5 HM ≥ 6mm h6 HM und HSS A device with an option “change coil” use different coils depending on the size of the tool to be shrunk-fit. For further information, see Chapter 5.4, Change the coil (only with an option “change coil”), page 21. If a wrong coil and ferrite disc are used, the ferrite disc can cause damage to the tool cutting edge. The diameter of the ferrite disc bore is 2.5mm larger than the largest tool diameter that the disk is designed for. In the case of ThermoGrip clamping chucks, the ferrite disc lies on the end face of the chuck which ensures that the coil is correctly positioned in relation to the chuck, even for extended clamping chucks. It is not possible to position slender shapes above the clamping chuck end surface. In this case, you require the coil limit stop ISGF3414 available as an optional accessory (see options Coil limit stop, page 49). After the heating cycle, the shrink fit chuck in the ISG3410 must not be touched by the operator until it has completely cooled down using the integrated direct coolant cooling. If it is necessary to handle the hot shrink fit chuck for special processes, this must only be carried out using protective gloves. Shrinking chucks should only be touched with gloves and only at the collar and not in the heated area. The maximum touching time should not exceed 5 sec. even when using a protection glove. Ensure that the chucks stand straight and are secure in the tool holders. Even though the shrinking of tools with Weldon, Whistle notch or similar shanks with non closed cylinder geometry is possible, cylindrical shanks such as DIN 1835 Form A are preferred, as these enable a greater holding force and the smallest amount of imbalance. Please ensure that the tool shanks used are not damaged in the clamping area. To achieve the best possible gripping forces only insert clean, grease-free shafts in the chuck. Ensure that there are no cutting flutes in the gripping area when deciding on the gripping depth. October 2015 ISG3410 18