公开(公告)号：EP4385655A1

公开(公告)日：2024-06-19

申请号：EP22858079.1

申请日：2022-03-08

申请人： NT Tool Corporation

发明人： ISHIKAWA Hitoshi ,  SUZUKI Hiroyuki

IPC分类号： B23Q11/00 ,  B23Q17/00

CPC分类号： Y02P70/10 ,  B23Q17/00 ,  B23Q11/10 ,  B23Q11/00 ,  B23Q2220/00820130101 ,  B23Q11/1023

摘要： [Object] To provide a cooling medium spray device that can increase the pressure of a cooling medium supplied from a main shaft of a machine tool.
[Solution] A rotary part of a pump 200 is connected to a body member 110. In a state in which the body member 110 has been attached to a main shaft 20 of a machine tool 10, a rotation stopping pin 310 of a rotation stopping device 300 fits in a fitting hole 41 of the machine tool 10 and abuts on a wall surface 41a of the fitting hole 41. Furthermore, the rotation stopping pin 310 and a rotation stopping lever 340 move toward one side in an axial direction against an elastic force of a spring 320, and engagement of the rotation stopping lever 340 with an engagement hole 113 provided in the body member 110 is released. Thus, a support part (a cover 150 and a case 160) is fixed to the machine tool 10, and rotation of the support part around the body member 110 is prevented. Furthermore, rotation of the body member 110 relative to the support part becomes possible. A force detecting sensor 50 outputs a force detection signal indicating a force with which the pin 310 is pressing against the wall surface 41a.

公开(公告)号：EP4385654A1

公开(公告)日：2024-06-19

申请号：EP22858078.3

申请日：2022-03-08

申请人： NT Tool Corporation

发明人： ISHIKAWA, Hitoshi ,  SUZUKI, Hiroyuki

IPC分类号： B23Q11/00

CPC分类号： Y02P70/10 ,  B23Q11/00 ,  B23Q2220/00820130101 ,  B23Q11/1023

摘要： [Object] To disclose a cooling medium spray device that can increase the pressure of a cooling medium supplied from a main shaft of a machine tool.
[Solution] In a state in which a body member 110 has been attached to a main shaft 20, cooling medium (coolant) supplied from the main shaft 20 of a machine tool 10 is pressurized by a pump 300, and then conducted to a nozzle 242 via a second case passage 222. A relief valve 500 discharges cooling medium from an outlet part 511b when the pressure T of the cooling medium within the second case passage 222 exceeds a pressure set value Ts corresponding to the elastic force F of a relief spring 540. At a prescribed rotational speed Ns, the pump 300 discharges the cooling medium, which has a prescribed pressure Tr that is higher than the pressure set value Ts, from an outlet part 302. It is configured such that sectional area S2 of the outlet part 511b is set to be smaller than sectional area S1 of an inlet part 511a, and in the state in which the pump 300 is rotating at the prescribed rotational speed Ns, a change of the discharge state of the cooling medium from the outlet part 511b can be determined by visual observation.

公开(公告)号：EP4385656A1

公开(公告)日：2024-06-19

申请号：EP22860830.3

申请日：2022-03-08

申请人： NT Tool Corporation

发明人： ISHIKAWA Hitoshi ,  SUZUKI Hiroyuki

IPC分类号： B23Q11/10 ,  B23B29/24

CPC分类号： Y02P70/10 ,  B23B29/24 ,  B23Q11/10

摘要： [Object] Techniques are disclosed for tool holders that non-rotatably hold tools, which can prevent long continuous chips from wrapping around the tool or a workpiece.
[Solution] A tool holder 100 holds a tool 170 in a non-rotatable manner. When an attaching surface 112a of a body part (110, 120, 150) of the tool holder 100 is attached to a tool holder attachment surface of a machine tool, cooling medium supplied from the machine tool is conducted through a first body part passage (114, 124). Furthermore, a rotary member 130 is rotationally driven by a drive mechanism provided in the machine tool. As a result of a rotary part rotating in conjunction with the rotation of the rotary member 130, a pump 200 increases the pressure of the cooling medium suctioned from an inlet part 201 to a pressure corresponding to the rotational speed of the rotary part, and discharges the cooling medium, the pressure of which has been increased, from an outlet part 202. By way of a second body part passage (125, 115), cooling medium discharged from the outlet part 202 is sprayed from a spray hole 161 of a nozzle 160 onto a processed part.

公开(公告)号：EP3623093B1

公开(公告)日：2024-01-17

申请号：EP18802299.0

申请日：2018-05-11

发明人： ISHIKAWA Hitoshi

IPC分类号： B23B31/08 ,  B23B31/20 ,  B23G1/46

公开(公告)号：EP2308641A1

公开(公告)日：2011-04-13

申请号：EP10186375.1

申请日：2010-10-04

申请人： NT Tool Corporation

发明人： Esaka, Shuichi ,  Kubo, Shinji ,  Fukagawa, Katsutoshi

IPC分类号： B23Q17/22 ,  B23Q17/24 ,  G01B21/04

CPC分类号： B23Q17/2457

摘要： Die vorliegende Erfindung betrifft einen Werkzeughalter zur Aufnahme eines in einer Messanordnung zu vermessenden Werkzeugs. Bei dem Werkzeughalter kann es sich beispielsweise um eine Spindel oder um einen in die Spindel einzusetzenden Adapter eines Werkzeugvoreinstellgeräts handeln. Im Weiteren betrifft die Erfindung eine Messanordnung zur Vermessung von Werkzeugen sowie ein Verfahren zur Kalibrierung einer solchen Messanordnung auf einen Werkzeugnullpunkt. Der erfindungsgemäße Werkzeughalter umfasst zunächst einen rotationssymmetrischen einspannbaren Grundkörper (20), dessen Symmetrieachse (22) eine vertikale Achse des Werkzeughalters definiert. Dem Werkzeughalter ist ein Werkzeugnullpunkt (23) zugeordnet, welcher einen Bezugspunkt für das aufzunehmende Werkzeug darstellt. Der Werkzeughalter umfasst weiterhin ein von außen erkennbares Kalibriermerkmal (24), welches einen horizontalen Abstand und einen vertikalen Abstand zum Werkzeugnullpunkt (23) aufweist. Erfindungsgemäß weist das Kalibriermerkmal (24) in einer vertikalen den Werkzeugnullpunkt (23) umfassenden Ebene eine kreisbogenförmige, konturbildende Außenkante auf, deren Mittelpunktswinkel größer als 135° ist.

摘要翻译： 刀夹具有夹紧基体（20），其限定在工具保持器的竖直轴的对称轴（22）。 的圆弧形轮廓屏幕端外部边缘具有标定特性（24）指向在一个空的工具（23）形成的垂直水平。 因此独立权利要求中包括了以下内容：（1）一个用于测量测量工具布置; 和（2）一种用于校准测量装置的方法。

公开(公告)号：EP3623093A1

公开(公告)日：2020-03-18

申请号：EP18802299.0

申请日：2018-05-11

申请人： NT Tool Corporation

发明人： ISHIKAWA Hitoshi

IPC分类号： B23G1/46

摘要： A tool holder is provided which is capable of absorbing stress applied to a tool with a simple structure. A stress absorbing mechanism 400 has an elastic part 230 provided in a body 200, a collar 410 arranged on an outer periphery side of the body 200, a support member 420 arranged on an inner periphery side of the body 200, and a position adjusting member 430 threadedly engaged with the support member 420. The elastic part 230 has a plurality of first voids extending along a circumferential direction and a plurality of second voids extending along an axial direction, the first voids and the second voids extend between a body inner peripheral surface 240 and a body outer peripheral surface 250. The collar 410 moves along the axial direction by interlocking with elastic deformation of the elastic part 230 along the axial direction. An O-ring 461 is arranged between a rear end part of the collar 410 and the body outer peripheral surface 250. The support member 420 moves along the axial direction by interlocking with axial movement of a tool 10. An O-ring 462 is arranged between a rear end part of the support member 420 and the body inner peripheral surface 240.

公开(公告)号：EP2308641B1

公开(公告)日：2012-05-30

申请号：EP10186375.1

申请日：2010-10-04

申请人： NT Tool Corporation

发明人： Esaka, Shuichi ,  Kubo, Shinji ,  Fukagawa, Katsutoshi

IPC分类号： B23Q17/22 ,  B23Q17/24 ,  G01B21/04

CPC分类号： B23Q17/2457