The tool handle is the key interface between the cutting tool and the Disc Type Special Machine spindle. The failure of the tool handle will cause the tool handle to fail to function, resulting in short tool life and unreliable cutting process.

Tool handle failure has the following forms:

1, the chip winding tool handle, due to the friction between the tool handle, the workpiece and the chip, the tool handle formed wear.

2. The intermittent cutting force causes the surface fatigue of the tool handle.

3. Tool handle deformation caused by cutting force.

4, cutting heat and cutting temperature lead to the phase change of the tool handle material structure.

A worn handle will not provide good accuracy and will wear the tool quickly, resulting in poor machining surface roughness and possibly even damage to the machine spindle. Check whether the positioning cone is worn or damaged. Any problem with the cone will directly affect the machining accuracy, if the cone has any defects, the tool handle should be replaced.

In order to ensure the performance of the tool handle, the overall environment must be maintained. The tool holder is required to operate within micron tolerances. Any dirt, dust, oil, chips or other contaminants that remain on the spindle, the tool holder cone and the front end clamping system will cause poor T.I.R.(radial runout), resulting in premature wear of the tool, the tool holder and the machine tool spindle.

Regular preventive maintenance, including regular cleaning and inspection of the Disc Type Special Machine spindle and tool holder, is recommended, which will help improve machining performance.

At the same time, it is recommended to check the T.I.R. of the tool handle assembly regularly to verify that the tool handle is worn. The handle assembly needs to be properly assembled using specific tool assembly equipment to keep the production floor safe and prevent premature damage to the cutting tools.

Proper maintenance and use of tool handles is an effective way to increase Disc Type Special Machine productivity, reduce downtime, and reduce the number of unqualified parts. The handle cost, although only a small part of the processing cost, has a large impact on productivity and cost-effectiveness.

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