| 摘要 |
Electromechanical knocking device and knocking method for working, smoothing and cold-hardening the surface of tools, machine parts and other parts by hammering an impact head onto the surface of the said parts by means of mounting them on a machine tool or a robot. The impact head (1a) is fastened to a support (1b), which has a ferromagnetic part (1c). A magnetic field (B1 ) keeps the support of the impact head in a defined position of rest. On the support of the impact head (1b) there is at least one coil (4), which is located in the first-mentioned magnetic field (B1) or another magnetic field (B2) and is flowed through by an alternating current or pulsed current (12) with or without a variable direct current component. As a result, the impact head (1a) is made to undergo oscillations with a defined impact frequency, impact amplitude and zero crossing. The combination of this device with an analytical CAM system makes it possible for any three-dimensional workpiece surfaces to be worked with allowance for the geometrical and material-relate d technical data as well as local dimensional and positional tolerances as a control unit or a fully automatic control system. |
