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Patent
Yamazaki Mazak Corporation | Date: 2016-11-11

A tool magazine includes at least one tool carriage movable along a circulation path. The tool holders each have tool pot sockets to which the tool pots are mountable. The tool holders are disposed pivotably about a pivot axis with respect to the at least one tool carriage. The tool pot sockets include a first and second tool pot sockets. An angle is created in a pivoting direction about the pivot axis between a first tool pot mounted to the first tool pot socket and a second tool pot mounted to the second tool pot socket. The turning device turns each of the tool holders about the pivot axis at a position on the circulation path. The tool pot stopper positions each of the tool pots and stops one of the first tool pot and the second tool pot at a pivotable location in the pivoting direction.


Patent
Yamazaki Mazak Corporation | Date: 2016-06-02

A table clamp device includes a reference rail, a slider section, and a movement mechanism. The reference rail is provided on a mounting surface of a base on which a rotary table is rotatably supported. The rotary table has a first engagement part. The slider section is provided to slide along the reference rail and has a second engagement part. The movement mechanism moves the slider section along the reference rail so that the second engagement part engages with the first engagement part such that the rotary table is positioned and clamped to the base.


Patent
Yamazaki Mazak Corporation | Date: 2016-11-28

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.


Patent
Yamazaki Mazak Corporation | Date: 2016-06-30

A tool magazine includes a magazine arm and a gripper plate. The magazine arm has a tool pot to hold a tool. The magazine arm is pivotable around a pivotal axis such that the tool pot pivots around the pivotal axis. The gripper plate has at least one gripper to hold the tool at a holding position on a circular arc track along which the tool moves when the magazine arm pivots. The at least one gripper is open in a tangent direction of the circular arc track at the holding position.


A vertical machining center 1 includes a table 20 to move in an X axis direction on a bed 10. On a portal column 30, a tool spindle 70 is disposed to be movable in a Y axis direction and a Z axis direction. An automatic tool changer 100 is capable of replaceably supplying a tool T to a tool spindle. The tool spindle is capable of furnishing itself with an angle tool holder 200. An angle tool holder storage unit 300 includes restriction means 380 fitted in a hole 204, which is disposed on a bottom surface of the angle tool holder 200. An unclamping unit 370 and a tool changer 350 automatically change a tool of the angle tool holder 200.


Patent
Yamazaki Mazak Corporation | Date: 2016-02-17

A vertical machining center includes a base; a tilting rotary table, a tool spindle, a tilting shaft, a recessed area, a slide door, and an inner cover. The tilting rotary table is disposed on the base and configured to turn and tilt a table face of a rotary table. The tool spindle is rotatable about a vertical axis line and movable in an X axis direction, a Y axis direction, and a Z axis direction. The tilting shaft is disposed in the tilting rotary table and oriented in the Y axis direction. The recessed area is disposed on a front surface of the vertical machining center. The recessed area is adjacent to a support supporting the tilting shaft. The slide door is configured to cover the front surface. The inner cover is integral with the slide door. The inner cover is configured to cover the recessed area.


Patent
Yamazaki Mazak Corporation | Date: 2016-03-30

A turning control device (50) calculates an approach angle for setting a thrust force to zero based on thrust force data when a cutting depth is designated through an input unit (74). When the approach angle is thus calculated, the turning control device (50) outputs, to a B-axis driving unit (46), a command amount for inclining a turning tool (36) with a point (P1) as a center. Moreover, the turning control device (50) outputs a command amount for controlling the cutting depth to an X-axis driving unit (42) for linearly displacing the turning tool (36) in an X-axis direction based on the cutting depth and the approach angle. Then, turning work is performed by rotating a workpiece (10) by a spindle driving unit (40) and displacing the turning tool (36) in a Z-axis direction by a Z-axis driving unit (44) depending on a cutting speed.


Patent
Yamazaki Mazak Corporation | Date: 2016-08-31

A tool magazine includes a magazine arm and a gripper plate. The magazine arm includes a pivotal axis on one end of the magazine arm, and a tool pot on the other end of the magazine arm. The tool pot is configured to hold a tool in a suspended manner. On the gripper plate, a plurality of grippers are disposed in a longitudinal direction of the tool magazine. The plurality of grippers are configured to hold the tool in a suspended manner on a circular arc track on which the tool moves when the magazine arm pivots. The plurality of grippers are open in a tangent direction of the circular arc at a position where the tool is held.


Patent
Yamazaki Mazak Corporation | Date: 2016-05-27

A turret tool rest includes a main shaft, a turret turning shaft, a turret, a joint base, a mill housing connection shaft, and an engagement member. The main shaft rotates a tool. A part of the main shaft is provided in the turret turning shaft. The turret turning shaft has a first coupling hole. The turret is connected to the turret turning shaft via which the turret is rotated. The joint base has a second coupling hole. The mill housing connection shaft is connected to the joint base. The mill housing connection shaft is provided between the main shaft and the turret turning shaft. Each of the mill housing connection shaft, the joint base, the part of the main shaft, and the turret turning shaft are disposed to rotate around a rotation axis of the turret. The engagement member moves in the first coupling hole and the second coupling hole.


Patent
Yamazaki Mazak Corporation | Date: 2016-04-06

A vertical machining center (1) includes a tool spindle (70) movable in directions of three orthogonal axes X, Y, and Z. A base (10) has a machining area (W) and a tool replacing area (A). In the machining area (W), a rotary table (30) is disposed. The rotary table (30) is mounted on a tilting frame (20). The tilting frame (20) has a tilting shaft extending between machine front side (F) and the rear side. A work area (S) is disposed on the machine front side (F) and used as a work area for an operator.

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