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公开(公告)号：EP4265372A1
公开(公告)日：2023-10-25
申请号：EP23164682.9
申请日：2023-03-28
摘要： An indexing device (1) includes a drive transmission mechanism (30), a fixing mechanism (40). The drive transmission mechanism (30) includes an intermediate gear (34) which includes an intermediate shaft (35) being inserted at an end portion into an accommodation hole (11b) formed in a frame (10), and the intermediate shaft includes an accommodating concave portion (35c) and a plurality of through-holes (35e). The fixing mechanism (40) includes a cylindrical pressing member (42), steel balls (41) and a screw member (43). There is a gap (44) between the pressing member (42) and a bottom surface (35g) of the pressing member in a state in which the pressing member is accommodated in the accommodating concave portion (35c) and the steel ball (41) accommodated in each throughhole (35e) is in contact with a tapered surface (42a1) and an inner peripheral surface of the accommodation hole (11b).
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公开(公告)号：EP4331771A1
公开(公告)日：2024-03-06
申请号：EP23187907.3
申请日：2023-07-26
摘要： A machine tool (1) includes a rotation indexing device (2) and an abnormality determination device (53). The rotation indexing device including a clamp device (4) configured to maintain a rotary shaft at an indexed angular position and an air purge device (30) configured to supply compressed air to a space within a frame (5). The abnormality determination device (53) includes a pressure sensor (37) configured to output a pressure signal (S1) according to a pressure in a supply pipe conduit (32) of the air purge device, and a determinator (51) configured to determine presence or absence of an abnormality, based on the pressure signal from the pressure sensor.
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公开(公告)号：EP4091766A1
公开(公告)日：2022-11-23
申请号：EP22163848.9
申请日：2022-03-23
摘要： A rotary table device (1) includes a table (4) provided on one end-side of a main shaft (3) rotatably supported in a frame (2); and a drive transmission mechanism (7) transmit rotation of an output shaft of a drive motor (19) to the main shaft and including a drive transmission member (26) and accommodated in an accommodation space (27) formed in the frame (2). The table (4) is supported with respect to the frame (2) by a bearing (9) provided between a lower surface of the table (4) and an upper surface of the frame (2), and a space (17) is provided between the lower surface of the table and the upper surface of the frame. The frame (2) is provided with a communication passage (28) configured so that the space (17) and the accommodation space (27) communicate with each other.
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公开(公告)号：EP4066992A1
公开(公告)日：2022-10-05
申请号：EP22158506.0
申请日：2022-02-24
发明人： ISHIZAKI, Junichiro
IPC分类号： B23Q11/08
摘要： A rotation indexing device (1) includes a rotary body (20) having a main shaft (21) rotatably supported via a bearing (2) in an accommodating hole (11) of a frame (10) and a table part (22) provided on one end-side of the main shaft (21), a workpiece or a jig for attaching the workpiece being attached to the table part (22); an oil seal (51) provided in a void portion (50), which is a portion on the one end-side relative to the bearing (2), in a space between the frame (10) and the rotary body (20); a drive mechanism (30) configured to rotationally drive the rotary body (20); and a holding mechanism (40) for holding the rotary body (20) at an indexed angular position during indexing processing. A dust seal (52) is provided in the void portion (50) on an opposite side to the bearing (2)-side with respect to the oil seal (51).
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公开(公告)号：EP3828443A1
公开(公告)日：2021-06-02
申请号：EP20204448.3
申请日：2020-10-28
IPC分类号： F16H55/06
摘要： Provided is a rotation drive device (1), which has a driving-force transmission mechanism (7) configured such that a drive transmission member (9) provided on a driving shaft (8) and a disk-shaped driven member (10) attached to a main shaft (4) are directly or indirectly engaged with each other and which is further configured such that an increase in diameter of the driven member (10) due to thermal expansion can be suppressed as much as possible. The driven member (10) includes an inner ring (11) attached to the main shaft (4), and an outer ring (12) attached to the inner ring (11) by shrinkage fit and having an engaging groove (13) formed to be opened on an outer circumferential surface (10b) thereof. The inner ring (11) is formed by a low thermal expansion member, which is an alloy having a thermal expansion coefficient of 5×10 -6 /K or less. The outer ring (12) is formed of a hardenable iron-based material.
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公开(公告)号：EP3287233A1
公开(公告)日：2018-02-28
申请号：EP17187616.2
申请日：2017-08-24
发明人： ISHIZAKI, Junichiro , IKEDA, Yohei
IPC分类号： B23Q16/10
CPC分类号： B23Q16/105 , B23Q2220/004 , B23Q2701/025
摘要： Provided is a clamp device (60) of an indexing apparatus (1) that indexes a main shaft (20), which is rotatably supported in an accommodation hole (13) of a frame (10) via a bearing (30), to a set angular position by rotating the main shaft (20) by using a driving device (50). The clamp device (60) includes a working channel (90) that connects an air supply device (70), which supplies compressed air, to a pressure chamber (65) in the clamp device (60). The clamp device (60) operates to retain an angular position of the main shaft (20) when compressed air is supplied from the air supply device (70). The clamp device (60) includes a pressure transmitting portion (80) that is interposed in the working channel (90) and in which a piston (82) is slidably disposed. A portion of the working channel (90) on the pressure chamber (65) side of the piston (82) in the pressure transmitting portion (80) is filled with an incompressible fluid.
摘要翻译： 本发明提供一种分度装置（1）的夹紧装置（60），该分度装置（1）将经由轴承（30）可旋转地支撑在框架（10）的容纳孔（13）中的主轴（20） 通过使用驱动装置（50）旋转主轴（20）来设定角位置。 夹紧装置60包括将压缩空气供应到空气供应装置70的工作通道90连接到夹紧装置60中的压力室65。 当从供气装置（70）供应压缩空气时，夹紧装置（60）操作以保持主轴（20）的角位置。 夹紧装置（60）包括插入工作通道（90）中的压力传递部分（80），并且活塞（82）可滑动地布置在该压力传递部分中。 在压力传递部分80中的活塞82的压力室65侧的工作通道90的一部分填充有不可压缩的流体。
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