公开(公告)号：US4972597A

公开(公告)日：1990-11-27

申请号：US448197

申请日：1989-12-14

申请人： Masahiro Kadosaki ,  Kihachiro Tohbo ,  Hiroshi Sugimori ,  Katsuji Taniguchi ,  Shigeru Yamada

发明人： Masahiro Kadosaki ,  Kihachiro Tohbo ,  Hiroshi Sugimori ,  Katsuji Taniguchi ,  Shigeru Yamada

IPC分类号： G01B11/00 ,  G01B11/24 ,  G01B11/245

CPC分类号： G01B11/007

摘要： A three-dimensional displacement gauge comprising a housing, a probe rotatably and slidably mounted on the housing, the probe is slidable along a first direction and having a contact member attached at one end thereof, two emitting members mounted on the probe each for emitting a light beam, two-dimensional measuring member such as a position sensor fixed to the housing for detecting the light beams, a biasing spring for biasing the probe toward the contact member, and a limit switch attached to the housing for detecting whether or not the probe moves in the first direction. The two-dimensional measuring member detects the light beams struck thereon so as to measure a small displacement of the contact member of the probe either in the first direction or in a second direction perpendicular to the first direction. In another mode, the two emitting members are mounted on the housing, and a mirror is mounted at the other end of the probe, and the two-dimensional measuring element detect the light beams struck thereon from the emitting members by way of the mirror.

公开(公告)号：US4924713A

公开(公告)日：1990-05-15

申请号：US316968

申请日：1989-02-28

申请人： Toshimichi Machino ,  Saiji Oda ,  Kihachirou Toubo ,  Masahiro Kadosaki

发明人： Toshimichi Machino ,  Saiji Oda ,  Kihachirou Toubo ,  Masahiro Kadosaki

IPC分类号： B23Q17/09

CPC分类号： B23Q17/0966

摘要： A cutting load or a cutting resistance which is applied to a machine tool is detected by using a transducer having a film sheet type piezoelectric sensor. A detection output of the transducer is converted into a voltage signal by a charge amplifier. The transducer is attached to the portion of a feed nut which is moved in the axial direction by a screw shaft, and the cutting load is applied to the transducer. On the other hand, the transducer may be assembled in the portion of the bearing which supports the feed screw shaft so as to detect the cutting load which is applied to the screw shaft. Further, the transducer may be assembled integrally with the tool holder. In order to prevent a drift which occurs in the output of the charge amplifier since a constant assembly load is applied to the transducer having the piezoelectric sensor, two transducers are provided so that the cutting loads are applied in opposite directions to the transducers and the inverted output of one of two charge amplifiers is added to the output of the other charge amplifier.

摘要翻译： 通过使用具有膜片型压电传感器的传感器来检测施加到机床的切割负荷或切割阻力。 换能器的检测输出由电荷放大器转换为电压信号。 传感器连接到通过螺纹轴在轴向上移动的进给螺母的部分，并且切割负载被施加到换能器。 另一方面，换能器可以组装在支撑进给螺杆轴的轴承部分中，以便检测施加到螺杆轴上的切削负荷。 此外，换能器可以与刀架一体地组装。 为了防止在电荷放大器的输出中发生漂移，因为对具有压电传感器的换能器施加恒定的组装负载，提供了两个换能器，使得切割负载沿相反的方向施加到换能器并且反向 两个电荷放大器之一的输出被加到另一个电荷放大器的输出端。