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US 7,029,366 B2Granted
Method and apparatus for abrasive circular machining
AssigneeHTT Hauser Tripet Tschudin AG
InventorJean-Claude Montandon
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AssigneeHTT Hauser Tripet Tschudin AG
InventorJean-Claude Montandon
Estimating the term…
For the machining of a workpiece (18) rotating about a workpiece axis, a first abrasive tool (20), which rotates about a first tool axis, and the workpiece (18) are advanced towards one another, in order to machine a first workpiece face in a first abrasive operation. Further, a second abrasive tool (54), which rotates about a second tool axis (56), is advanced towards the workpiece (18), in order to machine a second workpiece face in a second abrasive operation. The two workpiece faces are designed rotationally symmetrically with respect to the workpiece axis and are arranged adjacently to one another in such a way that a sharp, burr-free, circular transition edge is formed between them. The two abrasive operations are controlled in such a way that they are terminated at the same time. The method and apparatus for abrasive circular machining allow a reliable and accurate machining of workpieces with a sharp and a burr-free transition edge between two rotationally symmetrical faces, even in the manufacture of large series.
Method for abrasive circular machining of a workpiece which has a workpiece axis and, while the method is being carried out, rotates about the workpiece axis, whilst at the same time a first abrasive tool rotating about a first tool axis and the workpiece are advanced towards one another, in order to machine a first workpiece face in a first abrasive operation, wherein a second abrasive tool rotating about a second tool axis is advanced towards the workpiece, in order to machine a second workpiece face in a second abrasive operation, the two workpiece faces being designed rotationally symmetrically with respect to the workpiece axis and being arranged adjacently to one another in such away that a circular transition edge is formed between them, and the two abrasive operations being terminated at the same time.
Abrasive apparatus for the abrasive circular machining of a workpiece, with a workpiece spindle which rotates about a workpiece-spindle axis and which is provided with a workpiece holder designed for receiving the workpiece, with a first abrasive tool rotating about a first tool axis and with a first advancing device in order to advance the first abrasive tool and the workpiece towards one another, wherein the apparatus comprises, further, a second abrasive tool rotating about a second tool axis, a second advancing device for advancing the second abrasive tool towards the workpiece and a control device for controlling the abrasive apparatus in such a way that the first abrasive tool and the workpiece are advanced towards one another by means of the first advancing device, in order to machine a first workpiece face in a first abrasive operation, and in that the second abrasive tool is advanced towards the workpiece by means of the second advancing device, in order to machine a second workpiece face n a second abrasive operation, the two workpiece faces being designed rotationally symmetrically with respect to the workpiece-spindle axis and being arranged adjacently to one another in such a way that a circular transition edge is formed between them, and the control device for controlling the two advancing devices being designed in such a way that the two abrasive operations are terminated at the same time.
Dependencies are inferred from the claim text.