Class / Patent application number | Description | Number of patent applications / Date published |
279020000 | Fluid-conduit drill holding | 20 |
20100007101 | Shank Attachment Structure - A shank attachment structure which may supply coolant even if a drill without a center pin is attached. A shank can be attached to a shank attachment hole with a single motion. The outer diameter of the shank can be inserted into the shank attachment hole. A chamfered portion is formed around an edge of a base end, and an elongated concave portion is formed on a tip end. A coolant hole is formed on a base end of the shank attachment hole, and a valve body is disposed in the hole. A sealing member is disposed adjacent to the tip end side. A first sleeve is disposed such that a base of the shank moves the first sleeve, so that a base of the sleeve separates from the sealing member; and when the shank is not in contact with the tip, an outer peripheral surface of the first sleeve moves the engaging member radially outwardly. | 01-14-2010 |
20100066037 | Axially adjustable tool holder - An axially adjustable tool holder, essentially constituted by a principal body ( | 03-18-2010 |
20100148454 | Interface between a rotating shank tool and a lubricant transfer area in a tool holder - An interface between a shank tool and a lubricant transfer area. The shank tool is arranged in a tool holder, and comprises a clamping section, a conical shank end and at least one internal lubricant duct comprising an orifice located in a tapered surface of the shank end outside a shank tool axis. The lubricant transfer area is provided in the tool holder, which encompasses an inner recess, and which narrows in the direction of a centrical lubricant feed pipe, the inner recess defining an inner cone supporting the conical shank end radially outside of the orifice. The conical shank end and the lubricant transfer area include a funnel-shaped lubricant transfer chamber, which extends between the centrical lubricant feed pipe and a tapered surface contact area between the inner cone of the lubricant transfer area and the conical shank end. Also, an adjustable screw for an interface as described above. | 06-17-2010 |
20100270757 | TOOL COOLANT APPLICATION AND DIRECTION ASSEMBLY - A tool holder includes an insert having an annular channel in fluid communication with an inlet. The insert mounts within a body that provides for rigidly mounting the tool to the machine. Coolant flow through the inlet and annular channel exits the insert through passages directing coolant fluid along the axis of the tool. The passages are annularly disposed about a face of the insert for directing coolant fluid along the tool. | 10-28-2010 |
20110156363 | TOOL HOLDING DEVICE - The invention relates to a tool holding device comprising a tool holding body for securing, in a fixed manner, a rotary tool comprising a shaft, provided with a clamping section and a receiving opening for the shaft of the tool, a coolant feeding device for pressurized fluid, at least one coolant guiding device for guiding the coolant into a clamped tool shaft. The coolant guiding device is designed as at least one flat groove on an inner side of the receiving opening, joining to the front side on a free end of the tool holding body and directly adjacent to the tool shaft in the surroundings of the tool holding device or a coolant storing chamber and/or collecting chamber is provided in the region of the free end of the tool holding body, to which the at least one coolant guiding device joins. The coolant storing chamber and/or collecting chamber is connected by means of an annular gap to the surroundings of the tool holder device. The coolant storing chamber and/or collecting chamber and the annular gap are defined at least partially by the work shaft. | 06-30-2011 |
20110169230 | CHUCK FOR TOOLS - A chuck for a tool having an inner coolant channel, comprising a chuck body having a front part with an inner cone; an externally conical collet having a plurality of slots in a longitudinal direction thereof and engaging in the inner cone of the front part of the chuck body, a length adjusting means for the tool arranged so that the tool is bearable via an end surface against the length adjusting means, a coolant supply tube provided with a coolant supply channel extending into the length adjusting means so that the coolant supply tube discharges into the length adjusting means, a lock nut having a sleeve section extending over a front part of the chuck body and retained on the latter in an axially displaceable manner via a threaded connection and also connected to the collar in an axially displaceable manner, and at least one sealing means provided in a contact region selected from the group consisting of a contact region of the coolant supply channel, a contact region of the threaded connection, and a contact region of both. | 07-14-2011 |
20110266756 | DAMPING SLEEVE - The invention relates to a tool holder comprising a tool receptacle for frictionally clamping a tool shaft. A sleeve is arranged between the tool shaft and the clamping surface of the tool holder, said tool holder applying pressure to the tool shaft via the sleeve, producing the friction fit. At least one of the bearing surfaces of the sleeve is interrupted by open surfaces that are designed and arranged such that they form the damping cavities. | 11-03-2011 |
20120061924 | TOOL HOLDER FOR USE IN A MACHINE TOOL AND METHOD FOR OPERATING SUCH A TOOL HOLDER - A tool holder has a first holder part for inserting into a receptacle in the machine tool and a second holder part for holding a tool. The tool holder has a conduit for directing a coolant and/or lubricant to the tool from a coolant and/or lubricant source. The tool has a conduit section for the coolant and/or lubricant for directing the latter to a machining point, and wherein, in the fitted state of the tool in the tool holder, the conduit is in contact with the conduit section at a coupling point. Provision is made for there to be an air feed line which directs compressed air from a compressed-air source into the region of the coupling point in such a way that the compressed air acts on the outer circumferential surface of the conduit and of the conduit section. Furthermore, methods for operating such a tool holder are described. | 03-15-2012 |
20120211950 | CHUCK FOR A TOOL - A chuck for a tool comprises a device for supplying a cooling and/or lubricating medium to a medium channel in a tool held in the chuck, an adjusting screw, and securing means. The adjusting screw serves as a stop for the tool held in the chuck, is arranged in the chuck, is adjustable in relation to the chuck in the axial direction of the chuck, and interacts with a pipe element. The pipe element is held rotatably in the chuck and the securing means limit an axial displacement of the pipe element at least in the direction of the adjusting screw. The pipe element and the adjusting screw are connected in a rotationally fixed but axially displaceable manner with respect to each other. | 08-23-2012 |
20120292863 | QUICK CHANGE CLAMPING DEVICE - A clamping assembly for a toolholder includes a toolholder body having an access hole. A locking sleeve is slidably disposed within the access hole and a center collet is disposed within the locking sleeve and is fixedly connected to the toolholder body. The center collet receives a retaining tip of a tool. A spring assembly and a release device cause the locking sleeve to move within the access hole between a load position, where the locking sleeve is disengaged from the center collet such that the center collet is open and a lock position, where the locking sleeve engages the center collet such that the center collet is closed and locks the retaining tip of the tool within the access hole. | 11-22-2012 |
20130069322 | Tool Holder - A tool holder, which is inserted into a center-through-coolant spindle and employs a side-lock type chuck structure, can reliably prevent leakage of cutting liquid from a bolt hole for a side-lock bolt. The tool holder includes a side-lock bolt and an annular seal member. The side-lock bolt is inserted into a through hole extending from an outer peripheral surface to an inner peripheral surface of a tool attachment portion, threadedly engaged with an internal thread formed in the through hole, and secures a shank of a tool to a tool-holding bore. The seal member seals between the through hole and side-lock bolt. | 03-21-2013 |
20140197608 | TOOL HOLDER AND TOOL ARRANGEMENT - The present invention relates to a tool holder, in particular a steep-taper shank type tool holder, the tool holder comprising at least one mounting surface, in particular a mounting cone, for being received and driven by a drive spindle, and further comprising at least one integrated fluid path for an operating fluid, wherein at least one flow blocking member is associated with the at least one fluid path and is configured to block or release the at least one fluid path in a manner depending on flow direction. The at least one flow blocking member may be configured and arranged such that it permits flow for the operating fluid in the intended direction of supply and does not permit flow for the operating fluid in opposition to the intended direction of supply. The tool holder may be arranged as a chuck or a clamping chuck, for example. | 07-17-2014 |
20150048576 | Machining Tool Holder With Vibration Preventing Capability and Lubricating Function - A machining tool holder includes: a sleeve defining a central channel and a lubricant channel and formed with annular inner grooves and fastener holes, the lubricant channel having a truncated spherical end region; fasteners extending through the fastener holes; first O-rings retained in the annular inner grooves; a truncated spherical nozzle mounted rotatably in the truncated spherical end region; and an abutting mechanism having an abutting shaft and an second O-ring. The abutting shaft extends into the central channel and defines a retaining groove. The second O-ring is retained in the retaining groove and extends outwardly of the retaining groove beyond an end face of the abutting shaft. | 02-19-2015 |
20150360295 | TOOL HOLDER FOR A TOOL WITH A TOOL SHAFT PROVIDED WITH AN OUTER THREAD - A tool holder for a screw-in tool, having a receiving body, which includes a receiving opening with an inner thread and a support region with at least one guide surface for receiving the screw-in tool in the tool holder accurately in position. The receiving body has a receiving part and a guide part, which is fixed on the receiving part and on which the support region with the at least one guide surface is provided. | 12-17-2015 |
20150367423 | TOOL HEAD HAVING A SHRINK-FIT CHUCK - The invention relates to a tool head having a shrink-fit chuck ( | 12-24-2015 |
20160016235 | MODULAR TOOL HOLDER WITH DIVERSE CUTTING TOOLS ASSEMBLY - A modular tool holder with diverse cutting tools assembly includes a holder body, an adjusting screw and a blind bolt and a cutting tool. The holder body has a clamping section defined at a front side and a mounting hole formed through along an axis of the holder body. The adjusting screw is mounted in the middle of the mounting hole and has a first tool recess and a second tool recess formed on a head portion. The blind bolt is mounted in a rear side of the mounting hole. The cutting tool is mounted in a front side of the mounting hole and abuts to the clamping section. The cutting tool and the holder body are firmly connected and are double-restricted status. A user can use any one of different types of hand tools to rotate the adjusting screw to remove the cutting tool easily. | 01-21-2016 |
20160052061 | TOOL HOLDER COMPRISING SLITS - A tool holder for non-positively holding a rotatable tool by a receiving body containing a receiving opening with slits extending radially from the inner wall towards the exterior and running in the longitudinal direction of the receiving body. To permit a simple production process, the receiving body has an insert fixed into a receiving section. | 02-25-2016 |
20160158847 | TOOL HOLDING FIXTURE - The invention relates to a tool holding fixture ( | 06-09-2016 |
20160184903 | Blade fastening device with arrangement for guiding cutting fluid to cutting site - A blade fastening device is provided with a holding member including an axial channel for disposing a blade, and spaced, longitudinal clamping sections on an outer surface for clamping the blade; a hollow, cylindrical clamping member for clamping the clamping sections; and a cutting fluid guide member releasably secured to a front portion of the clamping member and including an axial channel for receiving a portion of the blade, and at least one through hole extending from a front surface of an edge portion of the cutting fluid guide member to a rear surface thereof. Each through hole further communicates with one of at least one gap each between two adjacent clamping sections so that cutting fluid may pump through the at least one gap and the at least one through hole to a front portion of the blade. | 06-30-2016 |
20170232566 | TOOL HOLDER WITH FLUID SUPPLY | 08-17-2017 |