A machine tool for implementing machining with rotation, the machine tool includes a first rotor, an enclosure, a first rail, a second rail, and a coupler. The first rotor rotates about a rotational axis. The first rotor is surrounded with the enclosure. The first rail is disposed on the first rotor. The second rail is disposed on the enclosure so as to be brought into alignment with the first rail at a rotational position. The coupler moves along the first rail and the second rail. The coupler is to engage with the first rail and the second rail in a first state and to engage with the second rail without engaging with the first rail in a second state.

A lathe capable of facilitating maintenance of a chucking mechanism. A chuck operating apparatus includes a claw and a shifter to open and close a chuck provided on a spindle. The tilt claw provided outside the spindle has a first posture to bring the chuck into the opened state and a second posture to bring the chuck into the closed state. The shifter provided outside the spindle and movable in a spindle axis direction is brought in a first position to bring the claw into the first posture and in a second position to bring the claw into the second posture. A roller is mounted on the shifter in a contact position with the claw to roll in the spindle axis direction.

A machine tool system includes a machine tool including a processor to process a workpiece with a tool, and a bed on which the processor is mounted, a transport apparatus including two, left and right, legs spaced apart from the bed to transport the workpiece and feed the workpiece to the processor or discharge the workpiece from the processor, and a plate that connects the bed to the legs and is elastically deformable. The plate is upright such that a plate surface is aligned with a front-rear direction, and a connection portion of the plate that connects with the bed and a connection portion of the plate that connects with the legs are displaced in a front-back direction.

A lathe includes a tool holder having a holder reference point, and a tool having a tool nose is attachable to the tool holder. A tool post has a tool post origin and mounting surfaces. An actuator is to adjust each of the mounting surfaces to an indexing position. A memory stores first distances between the tool post origin and the holder reference point of the tool holder mounted on the mounting surfaces, respectively. The memory stores instructions that when executed by a processor, cause the processor to perform operations. The operations include obtaining a second distance between the holder reference point and the tool nose of the attached tool, and estimating, based on the first distances and second distance, a third distance between the tool post origin and the tool nose of the attached tool to control the actuator.

A lathe includes a tool holder having a holder reference point, and a tool having a tool nose is attachable to the tool holder. A tool post has a tool post origin and mounting surfaces. An actuator is to adjust each of the mounting surfaces to an indexing position. A memory stores first distances between the tool post origin and the holder reference point of the tool holder mounted on the mounting surfaces, respectively. The memory stores instructions that when executed by a processor, cause the processor to perform operations. The operations include obtaining a second distance between the holder reference point and the tool nose of the attached tool, and estimating, based on the first distances and second distance, a third distance between the tool post origin and the tool nose of the attached tool to control the actuator.

A tooling assembly for a lathe machine includes a tool platform configured to be mounted on the lathe machine, a milling tool holder fixedly secured to the tool platform and workable to releasably secure a thread milling tool therein, and a milling tool drive. The milling tool drive is operatively connected to the milling tool holder and operable to rotate the milling tool holder independently of a work holder to mill threads on the workpiece when a pipe thread milling tool is secured in the milling tool holder. Computer numerical control threading lathes and methods of milling threads in tubular workpieces are also described.

An indexing system for a lathe tool holder comprises a lower housing assembly with a rotary driver shaft interfaced with a tool turret and rotatable by the tool turret, a rotary driver clutch secured to the rotary driver shaft, and an outer rotary comprising an internally threaded pocket. A rotary pusher with an externally threaded portion mates with the internally threaded pocket. Rotation of the rotary driver shaft causes the rotary pusher to move linearly without rotation. An upper housing assembly mounted on the lower housing assembly comprises a sawtooth connection for a multiple insert lathe tool holder head. A camshaft driver interfaces with the tool holder head and has a cam channel that circumscribes a path that is interfaced with a stationary cam pin. Linear movement of the rotary pusher causes rotation of the camshaft driver and thereby rotation and linear movement of the tool holder head.

In order to be suitable for space-saving of a multi-functional processing machine in which a tool main spindle device is disposed at a center of an opposed biaxial lathe, there is provided an automatic tool exchanger provided in the multi-functional processing machine, the automatic tool exchanger including: a tool magazine that is disposed in a machine body front surface upper portion of the multi-functional processing machine and is configured to house multiple tools for exchange with respect to the tool main spindle device; a shift device configured to move the tool between the tool magazine and a tool exchanging position with respect to the tool main spindle device; and a tool changer configured to exchange the tool between the shift device and the tool main spindle device.

Machine tool such as a lathe has a machine frame 110 having an upper tool carrier support portion 113, a lower tool carrier support portion 114 and a spindle carrier portion arranged between the upper and lower tool carrier support portions. A spindle carrier, is arranged on or at a height of the spindle carrier portion of the machine frame 110, supporting a main spindle 121 configured to receive a workpiece, and a plurality of tool carriers, each tool carrier being supported on a tool carrier assembly 150 being arranged on either the upper tool carrier support portion 113 or the lower tool carrier support portion 114 of the machine frame 110, wherein the machine tool also includes an auxiliary spindle carrier 130 arranged on the spindle carrier portion of the machine frame 110, for supporting an auxiliary spindle 131 configured to receive and guide a workpiece for parallel machining.

Machine tool such as a lathe has a machine frame 110 having an upper tool carrier support portion 113, a lower tool carrier support portion 114 and a spindle carrier portion arranged between the upper and lower tool carrier support portions. A spindle carrier, is arranged on or at a height of the spindle carrier portion of the machine frame 110, supporting a main spindle 121 configured to receive a workpiece, and a plurality of tool carriers, each tool carrier being supported on a tool carrier assembly 150 being arranged on either the upper tool carrier support portion 113 or the lower tool carrier support portion 114 of the machine frame 110, wherein the machine tool also includes an auxiliary spindle carrier 130 arranged on the spindle carrier portion of the machine frame 110, for supporting an auxiliary spindle 131 configured to receive and guide a workpiece for parallel machining.