Dmg Mori Company Limited

Mori Seiki Co., Ltd.

Dmg Mori Seiki Co., Ltd.

Shigetsugu Sakai

Yuhei Mezawa

Makoto Fujishima

Masahiko Mori

Shigeyuki Takashima

Toshio Ueda

Masahiro Yamane

Eiichiro Gomi

Takeshi Otawa

Yohei Shinkai

Syuichi Nishi

Yutaka Ido

Masanobu Nakazaki

Yuki Kimura

Satoshi Nozaki

A manufacturing machine is capable of subtractive manufacturing and additive manufacturing for a workpiece. The manufacturing machine includes: a first headstock and a second headstock disposed in a machining area and configured to hold a workpiece; a tool spindle and a lower tool rest disposed in the machining area and configured to hold a tool to be used for subtractive manufacturing for the workpiece; an additive manufacturing head configured to discharge a material during additive manufacturing for the workpiece; a workpiece gripper configured to grip the workpiece during transportation of the workpiece into and out of the machining area; and a robot arm on which the additive manufacturing head and the workpiece gripper are mountable. Accordingly, the manufacturing machine improving the productivity in the simple and easy manner is provided.

Manufacturing machine

A workpiece processing method is a method for successively processing a plurality of workpieces including a first workpiece and a second workpiece in a single machining area. The workpiece processing method includes: performing additive manufacturing on the second workpiece in the machining area; and performing subtractive manufacturing on the first workpiece in the machining area while keeping on standby the second workpiece on which additive manufacturing is performed. In this way, the workpiece processing method with improved productivity is provided.

Workpiece processing method

A manufacturing machine is capable of additive manufacturing. The manufacturing machine includes: a connecting part configured to be connectable to a machine tool capable of subtractive manufacturing; and an additive manufacturing head configured to be positioned in a machining area of the machine tool and discharge a material, when the connecting part is connected to the machine tool. The manufacturing machine for additive manufacturing that can be installed at a low cost is thus provided.

A manufacturing machine includes: a tool spindle configured to hold a tool for subtractive manufacturing for a workpiece; an additive manufacturing head detachably mounted on the tool spindle to discharge material powder and emit a laser beam during additive manufacturing; and a head stocker storing the additive manufacturing head in an outside-of-machining-area. The additive manufacturing head includes: a head body into which a laser beam is introduced; and a laser tool detachably mounted on the head body to emit the laser beam and define a laser-beam-irradiated region on the workpiece. The manufacturing machine further includes: a laser tool stocker storing a plurality of laser tools; and a laser tool exchanger for exchanging laser tools between the head body and the laser tool stocker. A high productivity of additive manufacturing is achieved by using the above features configured in this way.

A machine tool includes a cover body for separating at least a machining area from the outside. The cover body has an opening for allowing the machining area to communicate with the outside and includes a door for opening and closing the opening. The cover body does not include a transparent window for allowing the machining area to be visually checked from the outside. The cover body can be formed to be of a sufficient strength throughout and, if an unexpected accident occurs, structures within the machining area can be reliably prevented from being shot out of the machining area.

Machine tool provided with camera for capturing image of tool interior

A manufacturing machine is capable of subtractive manufacturing and additive manufacturing for a workpiece. The manufacturing machine includes: a first headstock and a second headstock disposed in a first processing area and configured to hold a workpiece; a lower tool rest and a tool spindle disposed in the first processing area and configured to hold a tool to be used for subtractive manufacturing for the workpiece; an additive manufacturing head disposed in a second processing area; and a robot arm configured to hold a workpiece and transport the workpiece between the first processing area and the second processing area. The additive manufacturing head is configured to discharge a material toward the workpiece held by the robot arm during additive manufacturing for the workpiece. Accordingly, the manufacturing machine configured simply to be capable of subtractive manufacturing and additive manufacturing is provided.

There is provided a method of compensating a command value for rotation angle capable of precisely compensating a command value for rotation angle even when conditions at detection differ to thereby make error patterns different in the case where a tooth-to-tooth period error pattern in an arbitrary tooth period is used for all the tooth periods to correct a command value for rotation angle. A forward direction tooth-to-tooth period error pattern being an error pattern of detected rotation angles at forward rotation and the actual rotation angles and a backward direction tooth-to-tooth period error pattern being an error pattern at backward rotation are found, and the command value for rotation angle is corrected based on the error pattern at the time of forward rotation, and the command value for rotation angle is corrected based on the error pattern at the time of backward rotation.

Method of compensating command value for rotation angle

A machine toolhas a support body, moving bodieswith an engagement memberhaving an engagement hole, a guide mechanismfor guiding the movement of the moving bodies, a guide railprovided along the moving direction of the moving bodieson the support body, a moving memberhaving a moving member bodyengaged with the guide railand an engagement shaftprovided on the moving member bodyand engaged with the engagement holeand a collar memberprovided on the tip portion of the engagement shaft, and a compressing springin which the engagement shaftis inserted and which energizes the engagement member. The engagement memberis provided on the opposite side to the moving body

Machine tool

A machine tool capable of eliminating a laborious attachment/detachment work of a cover member is provided. The machine tool includes a door devicehaving a first doorto cover a machining-area openingwhen machining a workpiece and a second doorto cover the machining-area openingwhen not machining the workpiece and formed to be visible an inside thereof, in which the first doorand the second doorare arranged in a movable manner between a position-in-use covering the machining-area openingand a position when opened opening the machining-area opening

A workpiece centering apparatusis provided on a lathe having a spindle, an independent chuck, and upper and lower tool rests, and has sandwiching membersmounted to the tool rests, respectively, and capable of contacting the outer peripheral surface of a workpiece W, and a centering control sectionfor moving the tool restsand thereby moving the sandwiching membersto their respective centering positions which are the positions of the sandwiching memberswhen the center position of a portion to be machined of the workpiece W coincides with the axis of the spindlein a state where the portion to be machined of the workpiece W is being sandwiched and held by the sandwiching members, and then causing the independent chuckto grip the workpiece W.

Growing community of inventors

Yamatokoriyama, Japan

Shigetsugu Sakai