The cutting machine for cutting logs of web material, includes a cutting head arranged along the feeding path of the logs. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes a store unit for disc-shaped cutting blades associated with the cutting head. A handling member is provided to remove a worn disc-shaped cutting blade from the cutting head and replace the worn disc-shaped cutting blade with a new disc-shaped cutting blade taken from the store unit.

This machine tool is provided with an arm for exchanging a tool between a main shaft in a machining chamber and a secondary tool standby position in a tool holding chamber, a shutter which is provided in an opening defined in a wall which partitions between the machining chamber and the tool holding chamber, a first motor for opening and closing the shutter, a shutter position detector which can detect the position of the shutter in the entire range between the fully open position and the fully closed position, a storage device which stores a prescribed position of the shutter associated with a prescribed operation of the arm and a control device which is configured to perform a prescribed operation of the arm on the basis of the position of the shutter detected by the shutter position detector and the prescribed position of the shutter stored in the storage device.

A tool machine magazine includes a base, a tool disc disposed on the base, tool sleeves disposed on a periphery of the tool disc through a bearing, a motor, a brake structure, a cam, a driver shaft, an angle sensor, and a control terminal. The motor drives the cam to operate. Each bearing orderly operates along the outline of the cam, driving the tool disc to continuously rotate without intermittence. The angle sensor is disposed on one end of the driver shaft or a rotation center of the tool disc. When the rotation angle of the tool disc matches the tool change command, the control terminal controls the brake structure to stop the motor, so as to stop the tool disc for facilitating the tool change operation.

A machining center includes two independent carriages supported so that they can slide along respective longitudinal translation axes (X′, X″) by two parallel horizontal rails fixed in a raised position to a supporting structure. The carriages support respective machining heads which move along two respective translation axes (Y′, Y″, Z′, Z″). The machining heads support respective tool holding spindles arranged with a vertical axis. At least one workpiece holding table is supported at the base of the supporting structure in a rotatable manner about a first horizontal and transverse rotation axis (Yr′, Yr″) and about a second rotation axis (Hr′, Hr″) perpendicular to the first one. Two mechanized tool magazines are supported at the opposite longitudinal ends of the supporting structure and are accessible by the spindles.

A lockable tool clamp includes two jaw members and a pin together installed on a mount to clamp a tool holder securely. The jaw members each have a connecting portion and a jaw tip. The two connecting portions are overlapped and connected to the mount through a shaft. The pin when installed on the mount is parallel to the shaft, and passes through the two jaw members at a location different from where the shaft passes through the two jaw members. When the pin is in its unlocking position, the jaw members are allowed to pivot with respect to each other, so that the tool holder can be withdrawn or replaced by pushing the jaw tips apart. When the pin is in its locking position, the jaw members are restricted from pivoting with respect to each other. At this time, the tool holder is clamped between the jaw tips securely.

A drum-type tool magazine adaptive to a multi-axis machining center allows the machining center to use spindles to directly take and replace tool holders that hold machining tools. The drum-type tool magazine includes a driving member, a drum, and plural tool clamps. The drum is centrally provided with a rotating shaft and peripherally provided with plural separated mounts that are arranged circularly. The driving member drives the drum to rotate. Plural tool clamps are arranged abreast on each of the mount. Every tool clamp of the same mount has a tool-clamping jaw parallel to a tangential direction at a periphery of the drum and communicated with the tool clamp so that the machining tool when clamped is laid horizontal and located close to the periphery of the drum. This allows the volume of the tool magazine to be minimized.

The present disclosure relates to a device for attaching and detaching tools in a magazine, and more particularly, to a device for attaching and detaching tools in a magazine of a machine tool, the device being capable of attaching or detaching a tool having directionality to or from each gripper of the magazine of the machine tool while accurately adjusting a fixed position of the tool.

The present disclosure relates to a tool magazine for a machine tool, and more particularly, to a tool magazine for a machine tool, wherein tool receiving units of a tool magazine are provided in multiple stages in a vertical turning center, such that a spindle head may easily change internal diameter machining tools and external diameter machining tools while moving in a horizontal direction and a vertical direction.

There is provided a blade replacing apparatus for replacing a cutting blade. The blade replacing apparatus includes a blade storage unit including a movable storage section configured to store the cutting blade, a transporting unit including a holding unit configured to hold the cutting blade and a moving mechanism configured to move the holding unit, a camera configured to photograph the holding unit, and a control unit including an operation control section configured to control operation of the blade storage unit and the transporting unit and a position registration section in which positions of the storage section and the holding unit. The storage section includes a first mark portion photographable by the camera, and the holding unit includes a second mark portion photographable by the camera.

A tool magazine receives a plurality of tools which are provided for arrangement on a tool spindle of a machine tool, and a method for changing tools using a tool magazine. The tool magazine exhibits a guide rail arranged in a fixed position on a machine base, a magazine carriage displaceably mounted on the guide rail, a rotary drive arranged on the magazine carriage and having a magazine shaft which can be rotated around a shaft axis of rotation, at least two magazine wheels arranged non-rotatably on the magazine shaft and having a plurality of tool holders, and a transfer device linearly displaceable along a transfer axis transverse to the guide rail and which picks up a tool arranged on one of the tool holders of the magazine wheels and transports the tool to the tool spindle and back.