公开(公告)号：US09092025B2

公开(公告)日：2015-07-28

申请号：US13671952

申请日：2012-11-08

申请人： FANUC CORPORATION

发明人： Susumu Maekawa

IPC分类号： G05D19/00 ,  G05B19/404 ,  B23Q11/00

CPC分类号： G05B19/404 ,  B23Q11/0007 ,  G05B2219/49204

摘要： A thermal displacement compensating device calculates a thermal displacement amount which is produced by heat generation or dissipation as a machine tool is actuated or stopped and changes with time. A thermal displacement compensation amount is calculated by multiplying the calculated thermal displacement amount by a coefficient. A position command is compensated by adding the thermal displacement compensation amount to the position command. On the other hand, a variation between a thermal displacement amount calculated last time and a current thermal displacement amount is determined for each predetermined time. A plurality of thermal displacement amount change states are identified based on comparison between the determined variation and a predetermined threshold. The coefficient is calculated based on the identified thermal displacement amount change state.

摘要翻译： 热位移补偿装置计算当机床被致动或停止时由发热或耗散产生的热位移量随时间变化。 通过将计算的热位移量乘以系数来计算热位移补偿量。 通过向位置指令添加热位移补偿量来补偿位置指令。 另一方面，对于每个预定时间确定上次计算的热位移量与当前热位移量之间的变化。 基于确定的变化与预定阈值之间的比较来识别多个热位移量改变状态。 基于所识别的热位移量变化状态来计算系数。

公开(公告)号：US08631727B2

公开(公告)日：2014-01-21

申请号：US13456332

申请日：2012-04-26

申请人： Atsushi Nakagawa

发明人： Atsushi Nakagawa

IPC分类号： B23Q17/22

CPC分类号： B23Q17/22 ,  B23B25/06 ,  B23Q11/0007 ,  B23Q17/225 ,  G05B19/404 ,  G05B2219/49206 ,  G05B2219/49207 ,  G05B2219/49212 ,  Y10T82/2502 ,  Y10T82/2508 ,  Y10T82/2535 ,  Y10T82/2552 ,  Y10T82/2572

摘要： A machine tool includes a spindle side position measuring unit measuring a spindle axial position in a spindle radial direction relative to a first reference position and a tool side position measuring unit measuring the position of a tool post relative to a second reference position. The spindle side position measuring unit includes a first scale extending in the spindle radial direction and a first readout unit, one of a base end portion of the first scale and the first readout unit is disposed at a spindle axis and the other of the base end portion of the first scale and the first readout unit is disposed at the first reference position. One of a base end portion of a second scale and a second readout unit is disposed on the tool post and the other is disposed at the second reference position.

摘要翻译： 机床包括：主轴侧位置测量单元，其相对于第一基准位置测量心轴径向心轴轴向位置;以及刀具侧位置测量单元，其测量刀架相对于第二参考位置的位置。 主轴侧位置测量单元包括沿主轴径向延伸的第一刻度和第一读出单元，第一刻度尺的基端部和第一读出单元中的一个设置在主轴轴线处，另一个基端 第一刻度和第一读出单元的一部分设置在第一基准位置。 第二标尺的基端部和第二读出单元中的一个设置在工具柱上，另一个设置在第二基准位置。

公开(公告)号：US20130190921A1

公开(公告)日：2013-07-25

申请号：US13671952

申请日：2012-11-08

申请人： FANUC CORPORATION

发明人： Susumu MAEKAWA

IPC分类号： G05B13/00

CPC分类号： G05B19/404 ,  B23Q11/0007 ,  G05B2219/49204

摘要： A thermal displacement compensating device calculates a thermal displacement amount which is produced by heat generation or dissipation as a machine tool is actuated or stopped and changes with time. A thermal displacement compensation amount is calculated by multiplying the calculated thermal displacement amount by a coefficient. A position command is compensated by adding the thermal displacement compensation amount to the position command. On the other hand, a variation between a thermal displacement amount calculated last time and a current thermal displacement amount is determined for each predetermined time. A plurality of thermal displacement amount change states are identified based on comparison between the determined variation and a predetermined threshold. The coefficient is calculated based on the identified thermal displacement amount change state.

摘要翻译： 热位移补偿装置计算当机床被致动或停止时由发热或耗散产生的热位移量随时间变化。 通过将计算的热位移量乘以系数来计算热位移补偿量。 通过向位置指令添加热位移补偿量来补偿位置指令。 另一方面，对于每个预定时间确定上次计算的热位移量与当前热位移量之间的变化。 基于确定的变化与预定阈值之间的比较来识别多个热位移量改变状态。 基于所识别的热位移量变化状态来计算系数。

公开(公告)号：US20120294688A1

公开(公告)日：2012-11-22

申请号：US13110650

申请日：2011-05-18

申请人： Chia-Hui TANG ,  Yu-Lin JUAN ,  Jin-Jia CHEN ,  Tsair-Rong CHEN ,  Paul CHANG

发明人： Chia-Hui TANG ,  Yu-Lin JUAN ,  Jin-Jia CHEN ,  Tsair-Rong CHEN ,  Paul CHANG

IPC分类号： B23Q17/20

CPC分类号： B23Q17/22 ,  B23Q11/0007 ,  B23Q17/12 ,  G05B19/404 ,  G05B2219/33133 ,  G05B2219/37432 ,  G05B2219/45145 ,  G05B2219/49206 ,  G05B2219/49212 ,  Y10T408/14 ,  Y10T408/172 ,  Y10T409/303864 ,  Y10T409/306888 ,  Y10T409/30728 ,  Y10T409/308064 ,  Y10T409/309744

摘要： A spindle control system for a milling machine is provided. The milling machine includes a column, an overarm, a spindle for mounting a cutter, a first motor mounted on the column for driving movement of the overarm, and a second motor mounted on the overarm for driving rotation of the spindle. The spindle control system includes a distance sensor and a temperature sensor, each to be mounted on the overarm and to be disposed proximate to the end portion of the spindle. The spindle control system further includes a central control unit for determining a compensation parameter based on the displacement sensed by the distance sensor and the temperature sensed by the temperature sensor, and for controlling movement of the overarm by the first motor through a compensation distance based on the compensation parameter to compensate for at least one of the cutter deformation and the spindle deformation.

摘要翻译： 提供了一种用于铣床的主轴控制系统。 铣床包括柱，超臂，用于安装切割器的主轴，安装在柱上用于驱动外臂运动的第一马达，以及安装在超臂上用于驱动主轴旋转的第二马达。 主轴控制系统包括一个距离传感器和一个温度传感器，每个都要安装在上臂上并靠近主轴的端部。 主轴控制系统还包括一个中央控制单元，用于根据由距离传感器检测的位移和由温度传感器检测的温度来确定补偿参数，并且用于通过基于第一马达的补偿距离来控制第一马达的超程的运动 补偿参数以补偿刀具变形和主轴变形中的至少一个。

公开(公告)号：US20120165971A1

公开(公告)日：2012-06-28

申请号：US13306206

申请日：2011-11-29

申请人： Toshihiko MURAHASHI ,  Hironori FUNAGUCHI

发明人： Toshihiko MURAHASHI ,  Hironori FUNAGUCHI

IPC分类号： G05B19/404

CPC分类号： G05B19/404 ,  B23Q11/0007 ,  G05B2219/49209

摘要： A thermal displacement correcting apparatus includes a correction amount estimating device and a parameter automatic selecting device that, in a machine tool having two different sets of specifications that differ due to the presence/absence of a scale and different methods of measuring the lengths of a bed and a table, estimate a thermal displacement correction amount of the machine tool of each set of specifications. The two devices store a collection of parameters for an estimated thermal displacement calculation corresponding to each of the bed, the scale, the table, and a workpiece, as a database, and select the parameters belonging to the set of specifications from the database based on machine information according to each set of specifications, calculate estimated thermal displacements of the bed, the table, and the workpiece, or also the scale, according to the selected parameters, and combine the estimated thermal displacements.

摘要翻译： 热位移校正装置包括校正量估计装置和参数自动选择装置，该装置在具有两种不同规格的机器中，由于存在/不存在刻度而不同，并且具有不同的测量床的长度的方法 和一个表，估计每组规格的机床的热位移校正量。 这两个装置存储用于对应于床，秤，工作台和工件中的每一个的估计热位移计算的参数的集合作为数据库，并且基于数据库从数据库中选择属于该组规范的参数 根据各组规格计算机床信息，根据选定的参数计算床，工作台和工件的估计热位移，并结合估计的热位移。

公开(公告)号：US07503691B2

公开(公告)日：2009-03-17

申请号：US11404858

申请日：2006-04-17

申请人： Kunio Kojima ,  Susumu Maekawa

发明人： Kunio Kojima ,  Susumu Maekawa

IPC分类号： G01K1/20

CPC分类号： G05B19/404 ,  B23Q11/0007 ,  B23Q17/22 ,  G05B2219/37285 ,  G05B2219/42281 ,  G05B2219/49214

摘要： A machine tool capable of detecting an ambient temperature change without a detector for detecting the ambient temperature and capable of detecting an abnormality of a temperature detector for detecting the motor temperature. Motor temperature Ti (i=1, 2 . . . n) and the current feedback Ifi of each motor are read out from the temperature detector for detecting the temperature of each motor of the machine tool. The heating value Qi of each motor is obtained from current feedback Ifi. Motor temperature Ti is calculated and estimated from the heating value Q. Difference ΔTi between the estimated motor temperature Tmi and the detected temperature Tsi is obtained. When difference between maximum and minimum values of difference ΔTi exceeds the first threshold value β, a temperature detector abnormality is outputted. When it is equal to or less than the first threshold value β, the mean value ΔT′ of differences is obtained. If the mean value ΔT′ is equal to or less than the second threshold value γ, it is determined that there is no abnormality. If it is equal to or more than the second threshold value γ, the indication that the ambient temperature has been changed is outputted.

摘要翻译： 一种能够检测环境温度变化的机床，其不需要用于检测环境温度的检测器，并且能够检测用于检测电动机温度的温度检测器的异常。 从温度检测器读出电机温度Ti（i = 1,2，...，n）和每个电机的电流反馈Ifi，以检测机床各电机的温度。 每个电动机的发热值Qi从电流反馈Ifi获得。 根据发热值Q计算出电动机温度Ti，并求出估算出的电动机温度Tmi与检测温度Tsi之间的差ΔTi。 当差值DeltaTi的最大值和最小值之间的差超过第一阈值β时，输出温度检测器异常。 当它等于或小于第一阈值β时，获得差值的平均值ΔT'。 如果平均值DeltaT'等于或小于第二阈值γ，则确定没有异常。 如果等于或大于第二阈值γ，则输出环境温度已被改变的指示。

公开(公告)号：US09956660B2

公开(公告)日：2018-05-01

申请号：US14755907

申请日：2015-06-30

申请人： FANUC Corporation

发明人： Yasuaki Koyama

IPC分类号： B23Q11/14 ,  B23Q11/00 ,  B23Q15/12 ,  B23Q15/18 ,  G05B19/404

CPC分类号： B23Q11/14 ,  B23Q11/0007 ,  B23Q15/12 ,  B23Q15/18 ,  G05B19/404 ,  G05B2219/37428 ,  G05B2219/37429 ,  G05B2219/49204 ,  G05B2219/49213

摘要： A thermal displacement state (target thermal displacement state) in which thermal displacement of a machine tool is saturated when the machine tool is operated based on a machining program is previously stored, and a warm-up operation pattern of a motor is determined so as to approach the target thermal displacement state. The motor is driven based on the warm-up operation pattern and the warm-up operation of the motor is stopped if the thermal displacement state of the machine tool is within a predetermined range.

公开(公告)号：US09186764B2

公开(公告)日：2015-11-17

申请号：US13884191

申请日：2011-11-05

申请人： Walter Hagspiel

发明人： Walter Hagspiel

IPC分类号： B23Q15/18 ,  B23Q11/00 ,  B23Q1/34 ,  G05B19/404 ,  B23Q17/24

CPC分类号： B23Q11/0007 ,  B23Q1/34 ,  B23Q11/0028 ,  B23Q15/18 ,  B23Q17/2452 ,  B23Q2210/002 ,  B23Q2717/006 ,  G05B19/404 ,  Y10T409/309744

摘要： A device is provided for correcting the position of at least one element of a machine tool, in particular a milling machine, in which at least one compensating element is disposed between a machine element and an element whose position is to be corrected. The compensating element is adjustable by an actuating distance such that, as a result of the actuation of the compensating element, the element is pivotable about a pivot axis at a joint between the machine element and the element of which the position is to be corrected which ensures the pivoting movement about the pivot axis.

摘要翻译： 提供了一种用于校正机床，特别是铣床的至少一个元件的位置的装置，其中至少一个补偿元件设置在机械元件和要被校正的元件之间。 补偿元件可通过致动距离来调节，使得由于补偿元件的致动，元件可以在机械元件和要被校正的元件之间的接头处绕枢转轴线枢转， 确保围绕枢转轴线的枢转运动。

公开(公告)号：US20130325162A1

公开(公告)日：2013-12-05

申请号：US14001175

申请日：2011-12-22

申请人： Natale Valsecchi ,  Stefano Zucchini ,  Roberto Goffrini

发明人： Natale Valsecchi ,  Stefano Zucchini ,  Roberto Goffrini

IPC分类号： G05B19/18

CPC分类号： G05B19/182 ,  B23Q11/0007 ,  B23Q17/22 ,  G01D5/34746 ,  G05B19/404 ,  G05B2219/49206

摘要： Machine tools are provided, including machines tools of large dimension, which include a bench, an upright base, control elements for the translation of the upright base, an upright base position sensor comprising an optical line or linear encoder fixed to the bench, detection elements for detecting the temperature of the optical line and management elements for processing the temperature signals coming from the optical line temperature detection elements and the signals of the upright base translation control elements to determine a correction signal for the upright base translation control elements according to at least one temperature detected along the optical line.

摘要翻译： 提供机床，包括大尺寸的机床，其中包括一个台架，一个直立底座，用于平移直立底座的控制元件，一个直立的基座位置传感器，包括固定在工作台上的光学线或编码器，检测元件 用于检测光线路的温度和用于处理来自光线路温度检测元件的温度信号的管理元件和直立基座转换控制元件的信号，以确定至少基于直立基座转换控制元件的校正信号 沿着光学线路检测到一个温度。

公开(公告)号：US20130028673A1

公开(公告)日：2013-01-31

申请号：US13579142

申请日：2011-02-14

申请人： Kimihiro Onishi

发明人： Kimihiro Onishi

IPC分类号： B23B35/00

CPC分类号： B23Q15/18 ,  B23Q11/0007 ,  G05B19/404 ,  G05B2219/49206 ,  Y10T408/16

摘要： An inspection point positional information acquisition step of acquiring thermal displacement positions of at least three inspection points set on a support member; an approximate curve calculation step of calculating an approximate curve of a deformed shape of the support member on the basis of the thermal displacement positions of the inspection points; a correction value calculation step of calculating a correction value for a command position of a movable member on the basis of the command position and the approximate curve; and a correction step of correcting the command position of the movable member using the correction value, are provided.

摘要翻译： 检查点位置信息获取步骤，获取设置在支撑构件上的至少三个检查点的热位移位置; 近似曲线计算步骤，基于检查点的热位移位置计算支撑构件的变形形状的近似曲线; 校正值计算步骤，根据命令位置和近似曲线计算可移动部件的命令位置的校正值; 以及使用校正值校正可动构件的指令位置的校正步骤。