| 摘要 |
The gear-cutting machine contains a device for the coordinated rotation of the spindle (13) of the tool (14) and the spindle (5) of the workpiece (10) to be machined during the longitudinal feed. Two kinematic link chains (15 and 16) are provided which are pivotably connected to one another by a common element (17). Each link chain (15 and 16) is constructed with a transmission ratio equal to one and with the same direction of rotation of the common element (17) and the boundary elements (18 and 19) of the two link chains (15 and 16). Here, the one boundary element (18) of the one link chain (15) is connected to the spindle (13) of the tool (14), while the other boundary element (19) of the other link chain (16) is connected to the spindle (5) of the workpiece (10), to be machined, in such a way that the axes of rotation of the spindle (13) of the tool (14) and the spindle (5) of the workpiece (10) are located in parallel planes which are at right angles to the planes of the axes of rotation of all elements of the link chains. Considerable rigidity of the system and a high machining accuracy are obtained and the work of the machine tool is facilitated even under difficult conditions without reducing the machining accuracy. <IMAGE>
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