Abstract: A machine tool includes a workpiece spindle that retains a workpiece or a tool, a spindle motor that rotates the workpiece spindle, an in-machine robot that is provided inside the machine tool and that is an articulated robot having one or more joints, and a plurality of gears that connect or disconnect a root joint which is placed, among the one or more joints, closest to a base end, and the spindle motor to or from each other.

Abstract: A machining installation for workpieces comprises a workpiece positioning device comprising a workpiece holder pivot unit as well as a tool positioning device comprising a tool holder pivot unit. The workpiece holder pivot unit is designed such that a workpiece holder is pivotable about at least three and no more than four workpiece holder pivot axes. Moreover, the tool holder pivot unit is designed such that a tool holder is pivotable about no more than two tool holder pivot axes. The machining installation has a simple design and ensures flexible and accurate machining of workpieces.

Abstract: A system comprises a machining device which comprises at least one chuck and at least one jaw detachably connected to said chuck, as well as a jaw exchanging device cooperating with said machining device. The chuck is provided with at least one locking element which can be moved in a locking direction and in an opposite direction, from a jaw releasing position to a jaw locking position, and vice versa, by means of the jaw exchanging device. The jaw exchanging device is provided with moving means for moving the jaw with respect to the chuck in said releasing position. The chuck is provided with a rotatable operating pin extending transversely to the locking direction, by means of which the locking element can be moved from the releasing position to the locking position and vice versa. The jaw exchanging device is provided with a connecting element to be connected to the operating pin, by means of which connecting element the operating pin can be rotated.

Abstract: A machine tool includes: a main spindle adapted to be rotatable with a workpiece chucked thereby; a tool spindle capable of moving in directions of three axes perpendicular to each other and capable of pivoting about one of the axes, the axis being perpendicular to the main spindle; an automatic tool changer adapted to detachably attach a first tool and a chucking unit to the tool spindle, the first tool being used for machining the workpiece chucked by the main spindle, the chucking unit being used for chucking the workpiece; and a tool post having a second tool mounted thereon, the second tool being used for machining the workpiece chucked by the chucking unit attached to the tool spindle.

Abstract: A base jaw and a top jaw of an implement clamping system, which can be plugged into each other and which comprise engaging surfaces configured together into cuneal manner and limiting the depth of penetration between the two jaws. The wedge angle is at least 85° or more, but at most 140°, thereby substantially avoiding jamming the engaging surfaces while nevertheless the top jaws are held in place in all directions by the base jaws.

Abstract: The present invention provides a machine tool with a spindle chuck replacing mechanism which is simply configured to enable a reduction in time for work replacement without the need to sense the rotation speed of a spindle chuck or the like. The machine tool includes a pre-rotation-transmission mechanism 7 transmits rotation of a spindle motor 4, via a path different from a chuck coupling portion 3a of a spindle 3, to a spindle chuck 5 placed in a processing position P1 and not coupled the chuck coupling portion 3a. The pre-rotation-transmission mechanism 7 makes a difference in rotation speed between the spindle chuck 5 and the spindle 3. The pre-rotation-transmission mechanism 7 has a speed difference absorbing mechanism 23 that absorbs the difference in rotation speed with the spindle chuck 5 coupled to the chuck coupling portion 3a.

Abstract: In an automatic chuck jaw change system, a combined machining lathe capable of positioning with high precision and a robot with lower positioning precision than the combined machining lathe cooperate to automatically change a chuck jaw. The system includes a robot disposed in front of the combined machining lathe, and the robot can be selectively mounted on a front end of an arm thereof with a work hand for operating a work, a chuck jaw, and a nut runner hand for operating a drive mechanism of the chuck. The robot cooperates with a tool for jaw mounted on a tool spindle of the combined machining lathe to automatically change a chuck jaw of a main spindle.

Abstract: An object of the present invention is to provide a machine tool with a spindle chuck replacing function which has a simple configuration and enables a reduction in work replacement time. The machine tool with the spindle chuck replacing function includes a spindle 3, a spindle motor 4, a plurality of spindle chucks 5, 5, a spindle chuck replacing mechanism 10, a pre-rotation motor 7, a rotation speed sensing arrangement, and a replacement spindle motor speed control device. The replacement spindle motor speed control device controls the rotation speed of the spindle motor 4 according to a speed sensed by the rotation speed sensing arrangement so that when the spindle chuck replacing mechanism 10 passes the spindle chuck located at a spindle opposite position P1 to a chuck coupling portion 3a of the spindle 3, the rotation speed of the spindle 3 synchronizes with the rotation speed of the spindle chuck 5 located at the spindle opposite position P1.

Abstract: A power tool driver includes a tool magazine having a cartridge that enables a change of tools in the power tool driver done in a convenient and safe way. The cartridge is selectively moveable and having a plurality of slots for accommodating a plurality of tools respectively, in which one of the tools can be selected to incorporate with the power tool driver.

Abstract: In an automatic chuck jaw change system, a combined machining lathe capable of positioning with high precision and a robot with lower positioning precision than the combined machining lathe cooperate to automatically change a chuck jaw. The system includes a robot disposed in front of the combined machining lathe, and the robot can be selectively mounted on a front end of an arm thereof with a work hand for operating a work, a chuck jaw, and a nut runner hand for operating a drive mechanism of the chuck. The robot cooperates with a tool for jaw mounted on a tool spindle of the combined machining lathe to automatically change a chuck jaw of a main spindle.

Abstract: In a machine tool arrangement comprising a machine tool component including a mounting structure for a work piece to be machined by a suitable metal cutting tool, a housing enclosing the machine tool component, a horizontal support beam is disposed above the housing and carries handling equipment for supplying work pieces from an adjacent loading area to the machine component for machining and returning the finished work pieces to the storage structure and an intermediate storage structure is disposed near the machine tool component for temporarily storing unfinished work pieces to be machined and finished work pieces after being machined.

Abstract: A method for fabricating a MEMS device comprises providing a substrate having a back side, a front side opposite to the back side and a periphery portion. A desired microstructure is formed on the back side of the substrate. The substrate is then supported for rotation. A precursor solution is deposited on the front side of the substrate during rotation so that a thin film layer may be formed thereon. During formation of the thin film layer, the substrate is supported and rotated that the microstructure formed on the back side is protected.

Abstract: 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 applied forces on the workpiece. For instance, the fixture processor may generate a set of admissible fixture designs for first, second and third locators placed in an array of holes on a fixture plate and a translating clamp attached to the fixture plate for contacting the workpiece. In another instance, a fixture vise is used in which first, second, third and fourth locators are used and first and second fixture jaws are tightened to secure the workpiece. The fixture process also ranks the set of admissible fixture designs according to a predetermined quality metric so that the optimal fixture design for the desired purpose may be identified from the set of all admissible fixture designs.

Abstract: Universal chuck for holding of irregular or regular shaped parts for machine processing such as milling, shaping, grinding and the like. Movable and fixed platens have grid-like patterns including protrusions and spaces into which gripping jaw members, having a configured bottom surface, align and secure. A robotic tool provides for selection and transfer of jaw members from a jaw storage fixture and for securing of the jaw members to the movable and fixed platens.

Abstract: On a frame, a headstock and a tool rest are provided being free to relatively move so as to perform machining operations. The headstock is rotatably provided with spindle. The spindle is provided with a workpiece gripping means. One or more than one bar supporting means for movably supporting a bar stock in a predetermined feeding direction are provided at a predetermined position with respect to the spindle. A cutting means, for cutting the bar stock supported by the bar stock supporting means at a cutting position on the feeding direction side to the bar supporting means, is provided. A workpiece carrying means is provided being free to move relative to the headstock so as to deliver the workpiece produced by cutting of the bar stock with the cutting means to the workpiece gripping means of the spindle from the workpiece gripping means side to the spindle.

Abstract: A system for changing the chucks of a tire uniformity machine includes a control which inactivates the main machine hydraulic and electrical system. The control also activates the chuck changing system which includes a small hydraulic power unit and a low set pressure relief valve for raising and lowering the lower chuck assembly and a small gearmotor for rotating the upper chuck assembly to facilitate removal of the upper chuck. The small hydraulic power unit and gearmotor, while mounted on the tire uniformity machine, operate entirely independently thereof for safety purposes.

Abstract: A flexible manufacturing system which includes a stack yard, a machine tool and a stacker crane. In the stack yard, a pallet group, formed by stacking a number of pellets, is stored. The pallet group is transferred to a machine tool cell by the stacker crane. Each pallet has a memory, and data of the pallet itself and the member loaded on the pallet are memorized by the pallet. There are various kinds of members such as work-piece, tool and chuck jaw. These members are stored on exclusive pallets made for each kind of the member. Of the members, each tool and chuck jaw has its own memory and memorizes its own data. The data of all the memory can be read and written; therefore, the position of the pallet, tool and chuck jaw can be controlled at all times.

Abstract: A computerized numerical control automatic complex lathe has a main spindle for gripping and rotating a work to be machined. A first machining tool performs a main machining of the work. A turret tool rest has an outer peripheral surface for holding a set of secondary tools along the outer peripheral surface thereof. The turret tool rest is selectively indexable to bring a selected secondary machining tool into a position to effect a secondary machining of the work and is selectively movable relative to the work to enable the selected secondary machining tool to perform the secondary machining of the work. The turret tool rest further includes a plurality of tool holders for holding a plurality of secondary tools. A back spindle is disposable on a side of the work opposite the main spindle for holding a selected secondary machining tool selected from the plurality of secondary tools.