Abstract: A cutting apparatus cuts a workpiece by a cutting blade. The cutting apparatus includes a mount flange on which the cutting blade is mounted and a replacement apparatus that replaces the cutting blade mounted on the mount flange with the cutting blade for replacement. The replacement apparatus includes a rotating part, a first holding part that holds the cutting blade mounted on the mount flange on a front surface side, a second holding part that holds the cutting blade for replacement on a front surface side, and a nut rotation part that has a nut holding part that holds a nut for fixing the cutting blade to the mount flange and rotates the nut held by the nut holding part. The rotating part is coupled to the first holding part, the second holding part, and the nut rotation part.

Abstract: The invention relates to a machine tool (1), comprising a plurality of fixed tool spindles (3) and such that can optionally be displaced from a retracted idle position to an extended working position and can be positioned at different positions in a frame-like rack (2), and a workpiece carrier (4) with at least one workpiece holder (5), with the workpiece (4) carrier being movable at least in several axes in a translational manner and preferably also in a rotational manner. In order to provide advantageous constructional conditions it is proposed that at least one of the tool spindles (3) is associated with a tool magazine (7) plus tool changer (8).

Abstract: A tool handling device for machine tools, comprising a tool magazine having a transfer position for the transfer of the tools, including a tool changer movable between the transfer position and an exchange position, which has a rotatable double gripper, and a supporting structure movable on a foundation, on which the tool changer is mounted. In order to achieve fast tool changes in tight spaces on the machine, the supporting structure has an upper slide and a lower slide which can both be displaced by means of spindle drives in the same direction on a foundation, wherein a single drive motor is provided for driving the two spindle drives.

Abstract: A tool changer for machine tools, the tool changer having at least one rotatable tool gripper, a supporting column for the tool gripper which can be lifted and lowered and rotated about a rotational axis, a mechanical cam gear for generating the lifting and rotating movements of the tool gripper, all driven by a drive motor connected to a cam barrel and intermediate gearing. The cam barrel has a tappet for the rotational drive of the tool gripper on its upper front and a cam curve or groove on its peripheral surface for the lifting movement of the tool gripper. The tappet drives a Maltese wheel supported on a shaft parallel to the rotational axis of the tool gripper. The Maltese wheel, the cam barrel, and the supporting column of the tool gripper are successively supported in a manner parallel to the axis.

Abstract: An automatic tool storing mechanism which has a plurality of magazines, a transporting device, and a tool exchanging part. Each magazine holds a number of pots each provided with tools. The transporting device transports tool-mounted pots one by one between the position close to the magazine and the waiting position close to the main spindle. The tool exchanging arm takes out an unused tool from the pot which is waiting at the waiting position and attaches it to the main spindle and also removes the used tool from the main spindle and places it in the pot. (FIG.

Abstract: A machine tool includes a headstock provided with a main spindle and movable in a direction different from a direction of axis of the main spindle, a tool post mounted on the headstock so as to be movable in the direction of axis of the main spindle, and a tool change unit configured to change a tool attached to the main spindle with another tool after an extremity of the main spindle has been moved to a predetermined tool change position. In this machine tool, when an extremity of the tool post is positioned in the tool change position by the movement of the headstock and also by the movement of the tool post, the tool change unit performs change of a tool attached to the tool post with another tool by the same tool change operation as that for the main spindle.

Abstract: The invention relates to a machine comprising a mechanical guide element (2a, 2b) for guiding the displacement of a first (3a, 3b) and a second device (4a, 4b). The machine comprises a first drive device (5a, 5b, 10a) for displacing the first device (3a, 3b) along the guide element (2a, 2b), and a second drive device (6a, 6b, 10b) for displacing the second device (4a, 4b) along the same guide element (2a, 2b) as the first device (3a, 3b). The mechanical construction of a machine is simplified due to said invention.

Abstract: An ergonomic tool lifting machine and method particularly useful for manipulating a machine tool or another heavy object. In one embodiment of the invention, the machine tool is a large milling cutter. The ergonomic tool lifting machine generally includes an articulating arm attached at a fixed end to a vertical lift mechanism, and at a free end to a grasping device or tool holder adapted for gripping and retaining an object of interest. When the object is a milling cutter, the ergonomic tool lifting machine may be used to transfer the cutter between a stored position and an installed position in a milling machine. Consequently, the tool holder of this embodiment is preferably able to rotate between a pick-up/drop-off position and an installation/removal position associated with the cutter. In general, the ergonomic tool lift machine allows heavy loads to be accurately moved with very little effort required on the part of an operator.

Abstract: A tool changer includes a spindle including a first collet, an auxiliary arm having a second collet, a tool-pan having a plurality of tool-seats, and an auxiliary tool-magazine. The auxiliary tool-magazine comprises a main body, a turnplate rotatable relative to the main body, a first tool-carrier attached to the turnplate, and a second toll-carrier attached to the turnplate.

Abstract: A device for loading and unloading a machine-tool with tools, the tools being mounted in a tool store and being transportable via a manipulation device, which is particularly movable along multiple axes to a transfer position on the machine tool or in the machine tool and, after use in the machine tool, being removable therefrom, and the manipulation device having a gripper device for receiving the tools. To save weight and increase the access speed of the manipulation device, the manipulation device has at least one displacement arm movable in a preferably horizontal first movement direction, which is mounted so it is displaceable on a guide element, and the gripper device is mounted so it is displaceable on the displacement arm in this first movement direction.

Abstract: A multi-layered tool magazine of a CNC machine having multiple specifications and fast tool-changing speed, includes a racket connecting to the CNC machine and being disposed with more than one set of tool magazine modules, a tool selecting module and a tool changing module. The tool changing module includes a tool selecting disk disposed with two tool selecting portions at both ends thereof respectively, and the tool selecting disk can move up and down corresponding to the tool magazine module. Furthermore, the tool changing module includes a tool changing rod disposed corresponding to the shaft of the CNC machine and a positioning point of the tool selecting module; therefore, it can increase the number of tools of the tool magazine and prepare the tools for the next process quickly in advance to exchange the tools with high speed and to further enhance the processing efficiency.

Abstract: A tool magazine exhibits a storage wheel, on the circumference of which there are attached, in the direction of its rotational axis protruding in both directions, tool receivers designed to receive tools. To transport the tools to a tool changer arranged on one side of the storage wheel there is provided a tool handover device, which is movable by means of a 4-position drive. To also enable the tools arranged to face away from the tool changer to be transported, the storage wheel exhibits passage opening that is open towards its circumference.

Abstract: 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 a relay tool exchange device. The tool magazine is mounted near the first column and extends transversely. The relay tool exchange device is mounted on the first column and has a guide device, a frame, a tool case and a driving device. The guide device is mounted on the first column and extends longitudinally. The frame is mounted moveably on the guide device. The tool case is mounted the frame and aligned selectively with the upper and the lower tool exchange devices. The driving device is connected to the frame and drives the frame to approach the upper and the lower tool exchange devices.

Abstract: A tool shelf magazine for milling and drilling machines has at least one shelf, a plurality of compartments provided in the shelf above each other at predetermined intervals and also a plurality of notches, which are open on one side accommodating one suspended tool. A handling device is vertically and horizontally shiftable by means of a motor located adjacent to the shelf. At least one gripper arrangement is provided for extracting predetermined tools from the shelf and for transferring them to a tool changer. At least one shelf has compartments with notches serving as tool accommodations on the front and back side. The notches on the front side are located in the access range of the handling device and the notches on the back side are accessible for retooling. The shelf is formed so as to be rotatable about an axis for a change of sides.

Abstract: A tool magazine exhibits a storage wheel, on the circumference of which there are attached, in the direction of its rotational axis protruding in both directions, tool receivers designed to receive tools. To transport the tools to a tool changer arranged on one side of the storage wheel there is provided a tool handover device, which is movable by means of a 4-position drive. To also enable the tools arranged to face away from the tool changer to be transported, the storage wheel exhibits passage opening that is open towards its circumference.

Abstract: A storage arrangement (1) for machine tools is proposed, comprising at least two storage shelves (12) arranged vertically one above the other and in each case having a multiplicity of tool or workpiece retainers (14), the tool or workpiece retainers (14) being arranged in a circle, and a movable gripping arm (16) which is rotatably arranged about an axis through the center of the circle formed by the storage retainers (14) and which furthermore is arranged so as to be movable in the vertical direction with respect to the storage shelves (12) and which furthermore is arranged so as to be movable horizontally and radially from the circle center, the gripping arm (16), during its horizontal movement, covering at most a distance which corresponds to the radius of the circle formed by the storage retainers (14).

Abstract: A tool handling device for a machine tool has a plurality of tool holders, which are arranged stationarily in one plane. A boom is able to be pivoted around a pivot axis normal to such plane and bears a tool gripper arrangement able to be moved in a radial direction normal to the pivot axis. Tools may be moved by it between a transfer station and the tool holders. This tool handling device is suitable both for use as a tool magazine and also as a magazine extension module for a machine tool to permit high speed tool changing with simple movements.

Abstract: A tool changing device for a tool machine having a tool spindle which can be moved at least in the spindle direction and with which a tool can be engaged in a spindle hand-over position. A tool magazine/storage area houses a tool to be changed in a magazine ready position with an orientation diverging from the spindle direction. A transport device is fitted with a tool holder which, by means of an operating device provided with a driving guide/guide path, swivels the tool about a swiveling axis during its transport from the ready position in the tool magazine and an orientation parallel to the spindle direction. The transport device is designed for an entire transport path between the magazine ready position and a spindle hand-over position. The transport device is aligned with the rotation axis of the stored tool. The swiveling axis runs perpendicularly to the transport direction and the spindle axis.

Abstract: A tool magazine system and a gripper for a machining spindle. The gripper should be fed to the tool laterally with respect to the rotational or longitudinal axis of the tool, particularly substantially at right angles to that axis, and should grasp the tool.

Abstract: 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 motion along the slide ways and carrying a machining head positionable in the first and second zones. Installed alongside at least one of the slide ways and containing a supply of tools attachable to the machining head is a magazine equipped with a first changer element positioned to coincide with the first zone of the station, and a second changer element positioned to coincide with the second zone, so that whichever of the two zones the machining head happens to occupy at any given moment, the tool currently in use can be replaced with a tool from the magazine by the relative changer element with minimal loss of time.

Abstract: An automatic tool-exchanging apparatus is provided which extends/contracts an arm with a rational and simple structure and can realize a high-speed operation essentially obtainable by making the arm's turning radius small. The apparatus comprises: an arm-driving shaft for being driven to rotate; an arm provided on the shaft and capable of being rotated, the arm capable of being moved to extend/contract and comprising a grip arm for attaching/detaching a tool, and an arm support movably supporting the grip arm; a clutch between the arm support and the shaft, the clutch for connecting the arm support and the shaft to make them rotate integrally, and disconnecting the arm support and the shaft to generate a relative rotation therebetween; and a link between the grip arm and the shaft, the link for transmitting the relative rotation of the shaft in respect to the arm support to make the grip arm move.

Abstract: A tool handling device for a machine tool has a plurality of tool holders, which are arranged stationarily in one plane. A boom is able to be pivoted around a pivot axis normal to such plane and bears a tool gripper arrangement able to be moved in a radial direction normal to the pivot axis. Tools may be moved by it between a transfer station and the tool holders. This tool handling device is suitable both for use as a tool magazine and also as a magazine extension module for a machine tool to permit high speed tool changing with simple movements.

Abstract: The present invention provides a tool changer for removal and installation of tools in a machining center having a spindle for holding a tool including a tool rack having a plurality of locations for holding tools and a rotatable arm movable between the spindle and the plurality of locations. Each of the plurality of locations has a clip for holding a tool and each clip has two arms with the arm on a first side of the clip having an inclined surface. The rotatable arm includes at least two grippers with each gripper defining at least one cam surface, the cam surface being structured and arranged to engage the inclined surface of the clip to allow for the removal of a tool in the clip.

Abstract: The present invention involves a tool changer for removal and installation of tools in a machining center having a machine tool with a spindle for holding a tool disposed within the machining center frame. The tool changer comprises a tool rack having a plurality of locations for holding tools, and an arm structured and arranged to be movable between the plurality of locations and a position which is capable of accessing a spindle of the machining center. Each tool holding location farther comprises a fork, which has a plurality of prongs. The movable arm has two grippers and one of the two grippers is disposed at an angle of about 90° relative to the other of the two grippers. The movable arm also is associated with rotational, vertical, and horizontal movement mechanisms. The rotational mechanism includes a motor, a pulley associated with the motor, a belt attached to the motor and the pulley, and a gear wheel attached to the belt with a limit switch for sensing one of the locations on the gear wheel.

Abstract: 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 the frame (4). The guide rail (12) has a horizontal section (12a), a vertical section (12b) and a curved section (12c). The direction of the tool changer (11) is changed while the tool changer (11) is traveling along the curved section (12c). The tool changer (11) carries a spare tool (T) in a horizontal position along the horizontal section (12a) of the guide rail (12) and in a vertical position along the vertical section (12b) of the guide rail (12). The tool changer (11) has a carriage (16) and a tool holding device (17) supported on the carriage (16) so as to be movable in directions perpendicular to the guide rail (12).

Abstract: A tool changer for machine tools is capable of transferring a tool transfer pot with a stroke smaller than the transfer distance of the tool transfer pot. The tool changer for a combined machining lathe includes a tool magazine having a multiplicity of tools and serving for transferring and indexing a next-process tool to a specified tool takeout position. A tool transfer mechanism transfers the next-process tool positioned in the tool takeout position or the tool delivery position to a tool changing position. A tool changing mechanism changes a process-completed tool loaded on a tool post body with the next-process tool positioned in the tool changing position. The tool transfer mechanism comprises a transfer arm pivotally disposed between the tool delivery position and the tool changing position. A tool transfer pot is coupled to a front-end portion of the transfer arm and serves to support the next-process tool.

Abstract: A tool changing device for a tool machine having a tool spindle which can be moved at least in the spindle direction and with which a tool can be engaged in a spindle hand-over position. A tool magazine/storage area houses a tool to be changed in a magazine ready position with an orientation diverging from the spindle direction. A transport device is fitted with a tool holder which, by means of an operating device provided with a driving guide/guide path, swivels the tool about a swiveling axis during its transport from the ready position in the tool magazine and an orientation parallel to the spindle direction. The transport device is designed for an entire transport path between the magazine ready position and a spindle hand-over position. The transport device is aligned with the rotation axis of the stored tool. The swiveling axis runs perpendicularly to the transport direction and the spindle axis.

Abstract: 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 to be pressed by the unclamping lever when the unclamping lever is rocked by the rocking means with a tool being clamped by the spindle, thereby releasing the tool from a clamped state, and a support shaft for rockably supporting the unclamping lever, the support shaft being movable axially with respect to the spindle.

Abstract: 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 positioned above the region in which the mobile column moves. The support base is supported in a cantilever fashion by posts erected on a bed. The tool magazine rotates within a horizontal plane for indexing tools to a standby position. The tools are accommodated in pots suspended via rolling members from the body of the tool magazine and adapted to move along a ring-shaped path under the tool magazine body. The tool magazine body has a local removal opening or cutout, from where a shifter at a standby position carries a pot to a tool delivery position.

Abstract: An automatic tool changer in a machining center includes a reducer, a compound cam, a cylindric cam, a four-bar mechanism, an elliptic trammel mechanism, and a tool changer device. The compound cam and the cylindric cam are driven by a motor after speed reduction through a belt and gear train. The compound cam which is composed of a roller gear cam and a face cam performs the tool change motions. During the tool change motions, the cylindric cam drives the follower which is fixed on the slider of the elliptic trammel mechanism to make the other slider push the pull bar which produces the pushing and pulling tool motions in the spindle head. By way of using this design, the tool change time is largely reduced, the tool change motions are smoother, and the cost is less expensive than the previous designs.

Abstract: A tool gripper to remove a tool from and position the tool in a work spindle or a tool magazine, respectively, includes two tong-like gripper arms, a support attached to a tool changer on which the two gripper arms are mutually movably mounted, and an operating device to open and close the two gripper arms. To achieve a simple construction with only a few individual parts, and to avoid technically complicated hydraulic or pneumatic driving mechanisms, according to the invention a first spring is disposed between the two gripper arms to provide a closing force. Further, the support having a bore therein, is motor-driven and movably arranged on a column. A pin inserted in the bore, which is axially parallel to the column, may be shifted against a second spring, and a locking member laterally attached to the bore engages between the rear legs of the two gripper arms.