Patents Examined by Donte Brown
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Patent number: 9517513Abstract: A drill driving apparatus includes a tool driving mechanism and a driving mechanism fixing instrument. The tool driving mechanism is configured to hold a tool and apply a rotation operation and a feeding operation in a tool axis direction to the tool. The driving mechanism fixing instrument has a through hole through which the tool passes. The driving mechanism fixing instrument is configured to be inserted detachably into a guiding through hole in order to fix the tool driving mechanism to a drill jig in which the guiding through hole is formed.Type: GrantFiled: July 1, 2013Date of Patent: December 13, 2016Assignee: FUJI JUKOGYO KABUSHIKI KAISHAInventors: Manabu Saito, Tatsuo Nakahata, Masao Watanabe
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Patent number: 9504163Abstract: A positioning system for a gantry adapted to move in the horizontal, X-Y plane that utilizes up to 80% less energy to operate than commercial machines, while at the same time decreasing the position settling times by 50%, and achieving this with an “in position window” of 2-3 microns, (a settling window) beating the current industry in position window of 7-12 microns. It accomplishes this through a novel synergistic overall design that utilizes a much lighter and much stiffer moving mass resulting in the moving components having an increased natural frequency. With this system on any style of PCB drilling machine, the drill bit life is extended in two ways: they do not dull as fast and they do not break as often.Type: GrantFiled: August 28, 2014Date of Patent: November 22, 2016Inventor: Wojciech B. Kosmowski
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Patent number: 9446457Abstract: A drill main body of an indexable drill is disposed first and second spiral flutes on a column-shaped outer circumferential surface with an inner blade tip cutting a hole center side mounted on a tip portion of the first spiral flute and an outer blade tip cutting a hole outer circumferential side mounted on a tip portion of the second spiral flute and the drill main body discharges chips through the first spiral flute and the second spiral flute toward a shank while hole machining is performed with the inner blade tip and the outer blade tip. The drill is a deep hole machining drill having a length of the first spiral flute and the second spiral flute equal to or greater than 4D relative to a drill diameter D that is an outer diameter of the outer blade tip.Type: GrantFiled: September 16, 2011Date of Patent: September 20, 2016Assignee: OSG CORPORATIONInventor: Takuma Aoyama
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Patent number: 9421624Abstract: The present invention relates to an end mill, which comprises a bottom edge, which is composed of an arc-shaped cutting edge that is curved when seen from a direction perpendicular to the tool axis and a linear or curved medium-to-low inclination cutting edge, and a peripheral edge, wherein, when seen from a direction parallel to the tool axis, the arc-shaped cutting edge and a rim at the rearward side of the rotation at a flank of the arc-shaped cutting edge are curved with radii of curvatures, and the radius of curvature of the arc-shaped cutting edge is smaller than the radius of curvature of the rim at the rearward side of the rotation at the flank of the arc-shaped cutting edge.Type: GrantFiled: January 27, 2012Date of Patent: August 23, 2016Assignee: HITACHI TOOL ENGINEERING, LTD.Inventors: Gang Han, Katsutoshi Maeda
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Patent number: 9421615Abstract: In a cutting tool having an indexable cutting insert with exactly four cutting portions, the cutting insert is removably securable to an insert holder by a fastener. The cutting insert has two opposing end surfaces with a peripheral side surface extending therebetween, and each cutting portion has a major cutting edge formed by the intersection of a rake surface and a relief surface. The peripheral side surface has first and second pairs of opposing side surfaces which include the four relief surfaces and the four rake surfaces, respectively. In an end view, four cutting points on the four major cutting edges define the transitions between the first and second pairs of opposing side surfaces, and a minimum first length dimension between the second pair of opposing side surfaces is less than six-tenths of a minimum second length dimension between two of the four cutting points.Type: GrantFiled: April 10, 2014Date of Patent: August 23, 2016Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 9409237Abstract: A finish depth turning insert includes a chip control arrangement. The chip control arrangement includes a medium protuberance for medium depth machining operations and a finish protuberance for finish depth machining operations. The finish protuberance is located between the medium protuberance and a corner of the insert. The finish protuberance also includes a front finish deflector surface and first and second relief surfaces extending towards the medium protuberance from the front finish deflector surface.Type: GrantFiled: September 16, 2013Date of Patent: August 9, 2016Assignee: Iscar, Ltd.Inventors: Shinya Majima, Daniel Hen
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Patent number: 9387541Abstract: A controlled feed speed drilling machine includes an output shaft for driving a cutting tool in motion. The output shaft is connected to first and second motors by a transmission, which includes a rotationally driving ring and a tapped drive nut. The driving ring is rotatable along the longitudinal axis of the output shaft via the transmission and the first motor. The output shaft is rotationally linked to the driving ring and is mobile in translation relative to the driving ring along the longitudinal axis via the transmission and the second motor. The tapped drive nut rotates along the longitudinal axis relative to the output shaft via the transmission and the first motor. The translation speed VT of the output shaft along its longitudinal axis is equal to the product of the rotation frequency FR of the second motor and a constant k according to VT=k. FR.Type: GrantFiled: January 9, 2014Date of Patent: July 12, 2016Assignee: SETI-TECInventor: Sebastien Pereira
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Patent number: 9352399Abstract: A drill comprises a drill body that is rotatable on an axis. Chip evacuating flutes, which are open on front flanks of the drill body and are extended rearwards, are formed in a periphery of the drill body on its front side. Cutting edges are formed along ridge lines where the front flanks intersect with wall surfaces of the chip evacuating flutes facing a drill rotating direction. At least first and second front flanks are formed on the front flanks in order of their locations in the drill rotating direction from its leading side to its trailing side. A clearance angle of the second front flank is greater than that of the first front flank. Intersection lines of the first and second front flanks cross the cutting edges.Type: GrantFiled: April 11, 2012Date of Patent: May 31, 2016Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Kazuya Yanagida, Koichiro Naruke
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Patent number: 9352405Abstract: The reaming tool comprises a cutting part having a peripherally arranged reaming cutter which, upon rotation about a center axis of the reaming tool, defines a cutting circle of nominal diameter. The reaming tool further comprises at least two peripherally arranged guide elements, which lie on a guide circle arranged eccentrically to the center axis or having a larger diameter than the cutting circle. As a result of this measure, high surface quality is obtained, in particular even in soft materials, since the reaming tool is clamped in the direction of the reaming cutter.Type: GrantFiled: December 11, 2013Date of Patent: May 31, 2016Assignee: KENNAMETAL INC.Inventor: Sebastian Hubert Kunschir
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Patent number: 9333566Abstract: Corner cutting edges (7 and 8) each having a side portion connected to a minor cutting edge and curved in the same direction as that in which the minor cutting edge is curved are formed on opposite sides of the minor cutting edge (6) of an indexable cutting insert for milling including a major cutting edge (5) formed of a ridge formed by an intersection of a rake face and a flank face and the minor cutting edge (6) for finish machining curved in a convex manner when viewed from a direction perpendicular to the flank face, and the minor cutting edge (6) continues to the major cutting edge (5) via the corner cutting edges (7 and 8).Type: GrantFiled: November 26, 2012Date of Patent: May 10, 2016Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Atsuhiko Maeta, Naoki Matsuda
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Patent number: 9308593Abstract: An angle-adjustable thread processing machine includes a base, a rocker arm, a rocker-arm toothed wheel, an idle wheel, a driven toothed wheel, and a processing unit. The base includes a power source with a drive shaft. The rocker arm is fixed to the drive shaft which rotates about a drive axis. The rocker-arm toothed wheel is pivotally sleeved on the drive shaft. The idle wheel is pivotally disposed on the rocker arm and engaged with the rocker-arm toothed wheel. The driven toothed wheel is pivotally disposed on the rocker arm to engage with the idle wheel and rotates around a driven axis which is located a first distance D1 from the drive axis. The processing unit includes a machining spindle fixed to the driven toothed wheel, and a machining head which rotates around a machining-head axis which is located a second distance D2 from the driven axis, and D1=D2.Type: GrantFiled: April 2, 2014Date of Patent: April 12, 2016Assignee: Hiwin Technologies Corp.Inventors: Chien-Hsiang Tsai, Chih-Wei Wang, Chien-Hung Lai
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Patent number: 9259793Abstract: A clamping device is attached to a front part of a body of a boring machine for clamping the boring machine and a workpiece together. The clamping device comprises a fixed piston fixed on the front part of the body, a movable piston equipped over the front part of the body movably in the axial direction of a spindle of the boring machine, a first pressure chamber, a second pressure chamber, a pressurized fluid-supply device to supply pressurized air to the first pressure chamber and the second pressure chamber so that the movable cylinder is moved in the axial direction, a connecting mechanism an end portion of which is connected to the movable cylinder, and a clamping unit which is connected to the other end portion of the connecting mechanism, and is fixed to a certain position of the workpiece.Type: GrantFiled: December 5, 2013Date of Patent: February 16, 2016Assignee: SUGINO MACHINE LIMITEDInventors: Minoru Ihara, Hideki Uchiuzo
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Patent number: 9233424Abstract: An adapter for holding a hole saw on a power tool includes a driver, a threaded spindle, and a connecting bushing, via which the threaded spindle and the driver are coupled in a direction of rotation.Type: GrantFiled: July 12, 2013Date of Patent: January 12, 2016Assignee: Robert Bosch GmbHInventors: Daniel Grolimund, Martin Richter
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Patent number: 9221108Abstract: A drill tool including a drill body having an inner insert and an outer insert at an end portion of the drill body. The distance from a central axis of the drill body to the outer insert is greater than the distance from the central axis to the inner insert. The cutting edges of the inner and outer inserts can be chamfered with the inner insert chambered at a radially inward portion and the outer insert chamfered at a radially outward portion. The inner insert and the outer insert can be mirror symmetric to one another. The inner insert and the outer insert are mounted to the drill body such that an effective cutting length of the inner insert equals an effective cutting length of the outer insert, the effective cutting lengths being measured in a direction perpendicular to the central axis.Type: GrantFiled: July 19, 2012Date of Patent: December 29, 2015Assignee: TaeguTec, Ltd.Inventor: Byung Gyun Bae
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Patent number: 9168588Abstract: A cutting insert having a main lip, a rake face and at least one coolant duct, which is formed on the top side of the cutting insert, is disclosed. The at least one coolant duct runs at least partially in the rake face towards the main lip and the width increases towards the main lip.Type: GrantFiled: November 27, 2013Date of Patent: October 27, 2015Assignee: KENNAMETAL INC.Inventors: Igor Kaufmann, Anwar Sadat Mohideen Abdul, Franz Havrda