摘要:
The invention relates to a method for making a cylindrical bore into a conical bore using a honing tool, wherein the honing tool comprises honing stones (13), the length thereof being less than 1/2 the length of the bore to be processed, comprising the following steps: applying the honing stones (13) of the honing tool to the bore; honing the bore over its entire length with a maximum stroke (HMax= OP1 - UP); honing the bore with decreasing stroke (H), wherein a lower reversal point (UP) of the honing tool remains essentially unchanged; and ending the honing process as soon as the upper reversal point (OP) has reached a predefined end value (OP2). In another embodiment, the widening of the bore into a conical shape is carried out by controlling the feed force (Z) with which the honing stones (13) are pressed against the bore according to a position of the honing tool in the bore.
摘要:
The present invention relates to a honing tool (31) for machining a plurality of separate bores (17a, 17b, 17c) arranged coaxially one behind the other, with different diameters. The honing tool (31) comprises a plurality of cutting bar groups (3, 4, 5) arranged coaxially one behind the other, wherein a cross-section of one cutting bar group (3, 4, 5), formed by radially extendable cutting bars (18), differs from the cross-section of at least one other cutting bar group (3, 4, 5). The cutting bar groups (3, 4, 5) are designed and arranged in such a way that, during one single pass, a through-bore (17a, 17c) can be machined by at least a first cutting bar group (3, 5) and a stepped bore (17b) can be machined by at least a second cutting bar group (4).
摘要:
The invention relates to a method and a device for removing overspray (13) on previously thermally coated workpieces (1), said removal being carried out with coolants and comparatively low pressures of 28 MPa for example.
摘要:
The invention relates to a device for fine machining workpieces, preferably for honing and/or fineboring cylinder bores in crankcases of internal combustion engines, wherein inside a module (1) one or two horizontally displaceable machining units (10, 11, 12, 13) each are provided on two longitudinal sides (2, 3) that are opposite each other for honing and/or fineboring. Each machining unit (10, 11, 12, 13) comprises a spindle (100), a drive for creating the oscillating stroke movement of the spindle (100) and for displacing the machining unit into the working position, a tool holder (8) with a rigid axis, and a feed device (60, 61, 62, 63, 64) for the radial feeding of the machining tools, and between the longitudinal sides equipped with the machining units (10, 11, 12, 13) a service chamber (7) that can be accessed from an end side, wherein at least one tool magazine (30, 31) is associated with the machining units (10, 11, 12, 13) at the rear end side (4) of the module (1).
摘要:
Die Erfindung betrifft ein Verfahren zur Träufelimprägnierung des Stators (2) oder Ankers einer Elektromaschine mit einem unter Temperaturerhöhung aushärtenden Kunstharz (5), welches folgende Schritte aufweist: a) Erwärmen des Stators (2) oder Ankers von einer Ausgangstemperatur (T1) auf einen Träufeltemperaturbereich (T2 - T3) des zunächst noch flüssigen Kunstharzes (5) in einem ersten Zeitraum (t0 - t1), b) Konstanthalten der Temperatur im Träufeltemperaturbereich (T2 - T3) sowie Einbringen des noch flüssigen Kunstharzes (5) in den Stator (2) oder Anker in einem zweiten Zeitraum (t1 - t2), c) Erwärmen des Stators (2) oder Ankers auf einen Aushärtetemperaturbereich (T4 - T5) in einem dritten Zeitraum (t2 - t3), d) Konstanthalten der Temperatur des Stators (2) oder Ankers im Aushärtetemperaturbereich (T4, T5) in einem vierten Zeitraum (t3 - t4) sowie Abbinden und Aushärten des Kunstharzes (5) zu einem Duroplast, und e) Abkühlen des Stators (2) oder Ankers nach dem Ende des vierten Zeitraumes (t3 - t4), wobei der Stator (2) oder Anker während des Einbringens des flüssigen Kunstharzes (5) in einer Imprägniervorrichtung (1) angeordnet ist, und bei dem der Träufeltemperaturbereich (T2 - T3) geringere Temperaturen aufweist als der Aushärtetemperaturbereich (T4 - T5). Gemäß der Erfindung ist vorgesehen, dass die Erwärmung des Stators (2) oder Ankers induktiv erfolgt.