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| Number | Title | Issue Date |
| 8062200 | Tool-changing device having a directly driven stroke and pivoting actuator A tool-changing device includes a tool gripper and a stroke and pivoting actuator for operating the tool gripper. The stroke and pivoting actuator can be driven by a first direct drive for producing a linear movement and by a second direct drive for producing a rota... | 11/22/2011 |
| 7604584 | Automatic tool-changing arm of automatic tool changer An automatic tool-changing arm of an automatic tool changer applicable to a machine tool, primarily comprises an immovable platform, a movable platform located below the immovable platform, a platform driving device driving the movable platform to vertically move wi... | 10/20/2009 |
| 7361129 | Multi-axis automatic tool-changing system A multi-axis automatic tool-changing system for an automatic machining center which is disposed with a plurality of machining principal axes and a tool magazine. The tool magazine is disposed with a plurality of tool-changing positions located correspondingly to the... | 04/22/2008 |
| 7338419 | Tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder A tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder. The tool coupler has a hollow shaft, a ring-shaped collar, and a gripper groove, in which gripper groove are disposed two diametrically opposi... | 03/04/2008 |
| 7264581 | Machining center with a relay tool exchange device A machining center includes a first column, a second column, a crossbeam mounted transversely on the first and the second columns, a tool magazine, an upper tool exchange device mounted on the crossbeam, a lower tool exchange device mounted on the tool magazine and ... | 09/04/2007 |
| 7207611 | Tool handling device A tool handling device for a machine tool with a support construction movable along at least two coordinate axes by means of a motor and a gripper arrangement mounted to the support construction. The grippers have two gripper claws pivotable against each other as we... | 04/24/2007 |
| 7150705 | Tool changing device which prevents chips adhering to tool A tool changing device of a machine tool which prevents chips adhering to a tool. By using a drive motor with which a tool changing device of the machine tool is usually provided, to vibrate the tool, the chips are prevented from adhering to the tool, especially to ... | 12/19/2006 |
| 7104940 | Tool changer for a machine tool A tool changer for machine tools having at least two tong-shaped grippers, the legs of which are formed for engaging with the ring groove at a broader end of a tool taper. The grippers are symmetrically mounted about the central axis of a carrier and are rotatable a... | 09/12/2006 |
| 7070550 | Transmission mechanism for tool changing device A tool changing device includes a conjugate cam composed of two plate cams and the conjugate cam is mounted to the cam axle. The two plate cams are operatively engaged with two rollers on two sides of a gear so that the gear is periodically rotated to drive the tool... | 07/04/2006 |
| 7063654 | Machining center Machining is possible in such a manner that an optional position of a workpiece is positioned just under a tool by rotation of a turn table in a C-axis direction and movement of a spindle on a Y-Z plane, so that a width of a main unit in a X-axis direction can be ma... | 06/20/2006 |
| 6949055 | Machine tool A machine tool consists in a pair of slide ways set apart one from another and extending parallel with a longitudinal axis, a machining station between the slide ways, presenting a first zone and a second zone adjacent one to the other, and a traveling gantry set in... | 09/27/2005 |
| 6601470 | Cam mechanism A cam mechanism through which torque applied to an input shaft is converted into the bi-directional rotation and reciprocating axial movement of an output shaft. Two cam elements are utilized, one consisting of a roller gear cam attached to the input shaf... | 08/05/2003 |
| 6450932 | Spare tool changing system for machining center A guide rail (12) is laid on a frame (4) of a horizontal machining center provided with a tool magazine (5) to guide a tool changer (11) for movement between a tool transfer station near the tool magazine (5) and a tool changing station at a lower part of... | 09/17/2002 |
| 6416449 | Device for changing bending tools A grasping device for changing bending tools on tube bending machines which includes a frame mounted over the bending machine. The grasping device includes a rotary head having independent movements in rotation, vertical motion and horizontal motion. A to... | 07/09/2002 |
| 6090026 | Automatic tool exchanging machine An automatic tool exchanging machine include a machine body such as gear box, a tool exchanging arm having a tool grasping member and supported by the machine body to be rotatable and to be linearly reciprocally movable in an axial direction of a rotation... | 07/18/2000 |
| 6007464 | Tool-changing apparatus and method for a machine tool In a tool-changing apparatus for a machine tool, a tool-locking pin and an arm-locking pin are provided in a tool-changing arm and urged upward. When the arm is moved downward by a swinging shaft, the tool-locking pin and the arm-locking pin are moved upw... | 12/28/1999 |
| 5988961 | Machine tool with pivoting release lever A machine tool includes a spindle to which a tool is detachably attached to be clamped, an unclamping lever provided for rocking motion and having two ends, rocking means for rocking the unclamping lever, a releasing section provided in the spindle so as ... | 11/23/1999 |
| 5947879 | Device for controlling a tool shaft of a cutting machine A device for controlling a tool shaft of a cutting machine includes a casing in which the tool shaft is rotatably and movably received therein, the casing having a first and a second detection member, a first, a second and a third switch member respective... | 09/07/1999 |
| 5947878 | Tool exchange device for machining centers A tool exchange device is capable of automatically and swiftly exchanging tools during non-cutting processes. The tool exchange device includes a motor; a belt assembly capable of being driven by the motor; a reduction gear assembly having a worm engaged ... | 09/07/1999 |
| 5928120 | Method and apparatus for exchanging tools in a machine tool with locking grippers When pairs of fingers grasp tools and a tool exchange arm starts lowering, upper ends of lock pins which have been held by a spindle head are released, the lock pins are pushed up by urging forces of springs, and tapered portions of the lock pins push out... | 07/27/1999 |
| 5908374 | Tool changer for machine tool A tool changer for a machine tool includes an arm support disposed between a spindle head and a tool magazine to be reciprocally moved along the spindle relative to the spindle, a pair of tool changing arms mounted for rocking motion on support shafts fur... | 06/01/1999 |
| 5876316 | Automatic tool changer An automatic tool changer can reduce a space required for an output shaft and thus permits downsizing of the whole device. Also, the automatic tool changer can reduce an inertia force in reciprocal linear motion to perform high speed operation. The automa... | 03/02/1999 |
| 5871426 | Machining center A machining center has a tool change device provided above a horizontally mobile column that has a main spindle for holding a tool. A circular tool magazine for carrying a plurality of tools in a horizontal attitude is provided on a support base which is ... | 02/16/1999 |
| 5868656 | Machine tool having a tool changing device with linear stroke mechanism A machine tool comprises a spindle having a tool receptacle for receiving tool holders in their working position. A tool changer is provided for conveying a tool holder in a first changing step between a magazine position and a spindle position at said sp... | 02/09/1999 |
| 5856924 | Processor and method for developing a set of admissible fixture designs for a workpiece Methods and apparatus are provided for developing a complete set of all admissible Type I and Type II fixture designs for a workpiece. The fixture processor generates the set of all admissible designs based on geometric access constraints and expected app... | 01/05/1999 |
| 5752905 | Automatic tool-changing mechanism The present invention is related to an automatic tool-changing mechanism adapted to be used in a machining center and including a power source, a machine frame and an automatic tool changing device secured to the machine frame, wherein the automatic tool ... | 05/19/1998 |
| 5749819 | Automatic tool changing apparatus An automatic tool changer in a machining enter includes a reducer, a compound cam, a cylindrical cam, a four-bar mechanism, a toggle mechanism, and a tool cahnge device. The compound cam and the cylindrical cam are driven by a motor after speed reduction ... | 05/12/1998 |
| 5662569 | Stepping apparatus capable of large angle oscillation A stepping apparatus capable of large angle oscillation comprising an output shaft and a driving shaft arranged parallel to, and spaced apart from, each other wherein the output shaft is provided with a roller wheel plate, both sides of the wheel plate be... | 09/02/1997 |
| 5424621 | Parallel conjugate cam type tool magazine mechanism A tool magazine for use with an automatic machine tool comprising a housing for removably storing tools, a rotatable tool holding disk for rotatingly switching one of the tools between a first position and a second position, the tool holding disk being ro... | 06/13/1995 |
| 5194061 | Tool changer A tool changer comprises a support (7) movable parallel to the axis (A or B) of a tool holder, a pivoting head (8) which pivots on the support (7) about an axis of rotation (D), and two gripper arms (9, 10) arranged on the head (8) substantially radially ... | 03/16/1993 |
| 5133128 | Drive control system for exchange arm Herein disclosed is an exchange arm drive control system which is adopted as the automatic tool exchanger of a vertical quadruple spindle type machining center and enabled to contribute to sparing the space and improving the machinability. The drive contr... | 07/28/1992 |
| 5107582 | Tool changing system A tool changing system for chip forming machine tools is described which with a simple construction ensures a tool change both in conjunction with horizontal spindles and vertical spindles and also spindles which adopt intermediate positions, which minimi... | 04/28/1992 |
| 5097877 | Machine tool with automatic tool-changing device The invention relates to a machine tool with a revolving head (11) used particularly for working on wood. It is fitted with an automatic tool-changing device (14) able to remove and fit a tool from and on each spindle of said head when the head is in a pr... | 03/24/1992 |
| 5081762 | Tool exchange device for a machine tool A tool exchange arm comprising a rotatable tool exchange arm body, and multiple sets of two fingers with claws mounted to the tool exchange arm for exchanging tools on a spindle and in a tool magazine of a machine tool, and a mechanism for driving the too... | 01/21/1992 |
| 4884332 | Tool changer A tool changer has a pair of chucking units mounted respectively on the ends of a tool arm and movable in mutually opposite directions for simultaneously gripping tools, the tool arm being angularly movable 180° for changing tools. The tool changer is us... | 12/05/1989 |
| 4852243 | Tool changer for drill press An apparatus that machines a workpiece with any of a plurality of tools of different lengths and comprises a generally stationary frame adapted to support the workpiece at a working station, a vertically displaceable drive unit on the frame, a spindle fix... | 08/01/1989 |
| 4833770 | Flexible manufacturing system for machining workpieces A flexible manufacturing system for machining workpieces. The system encompasses several tool machines, a storage unit that includes several tool shelves that are disposed along a guideway and have recesses for holding the tools. The guideway is disposed ... | 05/30/1989 |
| 4833772 | Automatic tool changing apparatus An automatic tool changing apparatus is disclosed which has first to fourth cam mebers (37, 42, 47, 51) integral with a drive shaft (23). The cam members operate cam index mechanism (FIG. 6), shaft drive mechanism (FIG. 7), claw driving mechanism (FIGS. 8... | 05/30/1989 |
| 4817267 | Tool change apparatus for machining center and the like A tool change apparatus for a machining center and the like comprises a spindle head vertically slidably mounted on a column, and a spindle rotatably mounted in the spindle head. The spindle has at the lower end thereof a tapered tool reception bore in wh... | 04/04/1989 |
| 4799308 | Automatic tool changer An automatic tool changer for use in a machine tool includes a chain (1) having a plurality of tool pots (2), a plurality of tool holders (H) set in the tool pots (2) in a fixed address manner so that the tool holders (H) are returned to their original to... | 01/24/1989 |
