Novel tool magazine door drive mechanism, door support structure and novel tool magazine door

The invention belongs to the field of tool magazine door drive, and provides a tool magazine door drive mechanism. The mechanism comprises a drive device, an installing base, a spline shaft and a toolmagazine door connecting block, the drive device and the spline shaft are installed on the installing base, the drive device is parallel to the spline shaft, and the tool magazine door connecting block is connected with the spline shaft and the drive device separately. A ball spline shaft is adopted as a guiding force bearing component of the tool magazine door, large torsion can be borne when the tool magazine door is opened or closed, and compared with the prior art, the whole mechanism is more stable and longer in service life. 本发明适用于刀库门驱动领域，提供了一种刀库门驱动机构，包括驱动装置、安装底座、花键轴及刀库门连接块，所述驱动装置及花键轴分别安装在所述安装底座上，所述驱动装置与所述花键轴平行，所述刀库门连接块分别与所述花键轴及驱动装置连接。采用滚珠花键轴作为刀库门的导向承力部件，使得刀库门在开关时可以承受大扭矩，整体比现有技术更加稳定，使用寿命更长。