Oil supply device for hole cutting apparatus

An inner cylinder (10), a pin (21), and a valve body (26) are movable in a reciprocating manner in a direction along the rotational axis in relation to an oil supply pipe (24). At a proximate position, where a cutter attaching portion (11) is close to the oil supply pipe, a rod portion (27) of the v...

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Bibliographische Detailangaben
Hauptverfasser:	INAGAKI, KAZUYOSHI, OMI, SHOHEI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING BORING COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING LUBRICATING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL TRANSPORTING TURNING WEAPONS
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Beschreibung
Zusammenfassung:	An inner cylinder (10), a pin (21), and a valve body (26) are movable in a reciprocating manner in a direction along the rotational axis in relation to an oil supply pipe (24). At a proximate position, where a cutter attaching portion (11) is close to the oil supply pipe, a rod portion (27) of the valve body is supported by a pressure receiving portion of the holder inner cylinder (10) due to the elastic force of a compression coil spring (29), such that an opening-closing portion (28)of the valve body closes a valve port (25) of the oil supply pipe. At a separated position, where the cutter attaching portion is separated from the oil supply pipe, the rod portion of the valve body is supported by the upper end of the pin (21) due to the elastic force of the compression coil spring, instead of the pressure receiving portion, such that the opening-closing portion opens the valve port.