| 摘要 |
<p>To be able, in a machine for machining workpieces and showing a spindle with spindle draw bar, to use an arm (10) with a draw bar pin (2) in a machining device for several working operations or separate tool holders (3) or different types of tools, the draw bar pin (2) is arranged in one piece with or in communication with a tool element (4) including in the arm (10). The tool element is shaped to hold tools or the tool holder (3). The draw bar pin (2) and tool element (4) plus eventual existing connecting elements (5, 12, 13) between the draw bar pin and the tool element are arranged displaceable in the arm (10), whereby the draw bar force of the machine's spindle draw bar is utilized to retain the tools or tool holder in the arm. When resetting or replacing the tools or tool holder (3) the draw bar force of the machine's spindle draw bar is made to stop, whereby the draw bar pin (2) of the arm (10) is made by a drawing element (7) shown by the arm, to displace whereby the tools or tool holder is released from an unmoveable or fixed position in the arm. Whenever applicable the arm (10) can show a holding device (6) which is brought into an activated position to retain the arm in the machine or its spindle. When the arm (10) is to be released from the machine or its spindle for for example exchanging an arm, a lock or fixing device (9) shown by the arm (10) is brought into engagement with the arm's draw bar pin (2), tool element (4), a connecting element (5, 12, 13) or another with the draw bar pin connected element and locks or fixes the draw bar pin against displacement, whereby the machine's ejector mechanism or its spindle draw bar can expel the arm.</p> |
