Zero point clamping systems
Less set-up time
The long-established company Kocks relies on AMF zero-point clamping systems for the production of components on a new machining center. This allows production times to be reduced by more than 80 percent in some cases and more flexibility to be gained in spare parts production and shift organization.
Some parts no longer have to be clamped nine times as in the past, but only three times. The K-20 module from AMF is approved for milling-turning operations up to 2,200 revolutions per minute. A processing machine at Kocks consists of a 48 millimeter high base plate with four of these zero-point installation clamping modules. They apply feed and locking forces of 20 kilonewtons each and holding forces of 55 kilonewtons each. The repeat accuracy during clamping is less than 0.005 millimeters. With a diameter of 112 millimetres each and additional ground contact pieces on the station, a large contact surface is created. Nevertheless, with an installation depth of 34 millimetres, the modules are compact and require only a small amount of the overall installation height on the machine table.
Some workpieces that are clamped directly with AMF clamping pins take around three hours to machine. Because the AMF zero-point clamping modules show convincing results in reducing set-up times, Kocks uses the technology on two other machines - including a Union boring machine with a machine table measuring 2,000 by 2,000 millimetres and a clamping angle measuring 1,000 by 1,000 by 2,000 millimetres. Here, the extra-strong AMF K40-H modules are used for heavy-duty machining in a superstructure station for direct workpiece clamping and in a single station for holding base plates or fixtures. pb
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