公开(公告)号：EP0343517A3

公开(公告)日：1991-03-20

申请号：EP89108974.0

申请日：1989-05-18

申请人： TOYODA KOKI KABUSHIKI KAISHA

发明人： Yoshimi, Takani ,  Matsuura, Akihiro ,  Takashima, Toshiharu ,  Nakano, Hiroyuki

IPC分类号： G05B19/18

CPC分类号： G05B19/404 ,  G05B2219/37096 ,  G05B2219/41164 ,  G05B2219/41165 ,  G05B2219/49207 ,  Y10T408/172 ,  Y10T408/175 ,  Y10T409/309352

摘要： A thermal displacement comensating apparatus capable of compensating for the thermal displacement of the main spindle of a machine tool is disclosed. A feed back scale and a measuring head are provided in order to detect the actual position of the front end portion of the spindle head. Furthermore, a distance sensor is provided for detecting the thermal extention of the main spindle with respect to the spindle head. The output signal from the distance sensor is used for modifying the present position detected by the measuring head or modifying a commanded target position. With this arrangement, a tool attached to the front end portion of the main spindle is moved to the commanded position regardless of the thermal displacement of the spindle head and the main spindle. Another type of compensation apparatus is also disclosed, wherein the measuring head is mounted on a mounting rod, and the mounting rod is automatically moved so as to maintain the distance between the measuring head and the front end surface of the main spindle at a constant distance. With this arrangement, actual position of the front end surface of the main spindle can directly be detected regardless of the thermal displacement of the spindle head and the main spindle.

公开(公告)号：EP0343517A2

公开(公告)日：1989-11-29

申请号：EP89108974.0

申请日：1989-05-18

申请人： TOYODA KOKI KABUSHIKI KAISHA

发明人： Yoshimi, Takani ,  Matsuura, Akihiro ,  Takashima, Toshiharu ,  Nakano, Hiroyuki

IPC分类号： G05B19/18

CPC分类号： G05B19/404 ,  G05B2219/37096 ,  G05B2219/41164 ,  G05B2219/41165 ,  G05B2219/49207 ,  Y10T408/172 ,  Y10T408/175 ,  Y10T409/309352

摘要： A thermal displacement comensating apparatus capable of compensating for the thermal displacement of the main spindle of a machine tool is disclosed. A feed back scale and a measuring head are provided in order to detect the actual position of the front end portion of the spindle head. Furthermore, a distance sensor is provided for detecting the thermal extention of the main spindle with respect to the spindle head. The output signal from the distance sensor is used for modifying the present position detected by the measuring head or modifying a commanded target position. With this arrangement, a tool attached to the front end portion of the main spindle is moved to the commanded position regardless of the thermal displacement of the spindle head and the main spindle. Another type of compensation apparatus is also disclosed, wherein the measuring head is mounted on a mounting rod, and the mounting rod is automatically moved so as to maintain the distance between the measuring head and the front end surface of the main spindle at a constant distance. With this arrangement, actual position of the front end surface of the main spindle can directly be detected regardless of the thermal displacement of the spindle head and the main spindle.

摘要翻译： 能够补偿的机床的主轴的热位移的热位移comensating装置游离缺失盘。 为了检测主轴头的前端部的实际位置提供一个反馈规模和测量头。 进一步，距离传感器被设置用于相对于所述主轴头检测所述主轴的热推广。 从距离传感器的输出信号被用于修改由测量头检测的当前位置或修改命令的目标位置。 利用这种布置，连接到主轴的前端部的工具移动到所命令的位置，而不管所述主轴头的热位移和主轴的。 这样补偿装置的另一种类型的光盘游离缺失，worin测量头被安装在一个安装杆，和安装杆自动地移动，以便保持在一个恒定的距离测量头和主轴的前端表面之间的距离 ， 利用这种布置，该主轴的前端表面的实际位置可以直接不管主轴头的热位移和主轴的检测。