Tool clamping system
Term to describe the interface between tool and machine in CNC-machining centres.
The tool clamping system usually consists of a tool interface, which contains a tool holder. If such a tool interface exists, Höchsmann specifies the standard of the tool interface under the name "tool clamping system".
Partly, machines do not have tool interfaces. In this case, the kind of tool holder is specified.
Since these terms are not standardized, they are not uniformly used. Here, the most common and most linguistically clear use is described.
In order to allow tool changes in CNC machining centers without re-measurements, the actual tool is clamped in devices, that can be easily tightened or loosened and do have a defined support surface. Thus, even after multiple exchanging procedures, a measured tool clamped in the interface still has exactly the same dimensions, in the machine.
In CNC woodworking, the following tool interfaces are common:
The tool holder is the element, which contains the actual tool. A tool holder can be located either directly in the router head or integrated into a tool interface. Router heads, which contain the tool holder without an interface are barely used anymore, today. Since a tool change has to be done manually and the tool has to be re-measured and saved, this is not economical. In exceptional cases, it could be found for reasons of precision or as an inexpensive additional router head.
In CNC woodworking, the following tool holders are common: