Röhm Main Catalogue Clamping Technology Page 721
Commercial customer offer**Top sellers from RÖHM
Determining the required gripping force of a power chuck Power-operated clamping devices Where: Fc = experimentally determined total centrifugal force of the chuck jaws obtained from the gripping forcespeed diagram. The gripping force curves refer to the hard, stepped jaws of the chuck. Ssp = safety factor for the initial gripping force in accordance with VDI Recommendation 3106 ≥ 1,5 If extremely heavy top jaws (special jaws) are used, the centrifugal forces Fc can be calculated using VDI Recommendation 3106. III) The operating power bears a given relationship to the total gripping force, depending on the Typee of chuck employed. The values for the operating power can be obtained from the gripping force/operating power diagram. In special cases where the centrifugal forces of the jaws are very high in comparison with the initial gripping force and power chucks with standard top jaws cannot be used, certain operations can be done with aluminium top jaws of special strength. Calculation (example) Having: Material Chucking diameter: (roughed) Machining diameter: Feed: Depth of cut: Distance cutting/clamp. points: Speed: dsp = C 45 = 60 mm Ø dz s t lz n = 20 mm Ø = 0,5 mm = 5 mm = 50 mm = 3000 min-1 Power-operated clamping devices 1. Workpiece and machining data: 2. Chuck data: KFD 200 power chuck Jaws with diamond style gripping surface Condition of chuck: new (no special influencing parameters) External gripping with UB-538-04 top jaws at mid-position of gripping range. Find: 1) Required gripping force Fspz = total gripping force required (without the effect of angular speed 2) Initial gripping force Fspo = (total) initial gripping force with the chuck stationary 3) Operating power www.eshop.roehm.biz 6207
892 Pages | Valid until 12/2024 | Previous page | Next page
Choose your language
Legal issues
The manufacturer is exclusively responsible for the content, price and article details of the products and offers presented in the catalogues. Subject to technical and optical changes by the manufacturer and errors excepted.
Request form for special products
The ToolTeam® Procurement Service
Are you looking for products that are shown in the catalogue but cannot be purchased directly online?Our procurement service will be pleased to make you a non-binding and individual offer.