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    • 2. 发明授权
    • Laser machining apparatus
    • 激光加工设备
    • US06555784B2
    • 2003-04-29
    • US09832206
    • 2001-04-11
    • Nobuaki IehisaNorio KarubeAkihiro TeradaAtsushi WatanabeMitsuhiro Okuda
    • Nobuaki IehisaNorio KarubeAkihiro TeradaAtsushi WatanabeMitsuhiro Okuda
    • B23K2636
    • B23K26/0613B23K26/0604B23K26/067
    • A laser machining apparatus with a simplified laser beam transmitting network. Respective laser beams form laser generators LS#11 to LS#25 divided into groups of G1 and G2 are aggregated to fiber-optic cables H1 and H2 by confluence devices HC1 and HC2 and transmitted to a most upstream laser beam outlet OP1. The laser beams are further aggregated to a fiber-optic cable H3 and distributed to a branch fiber-optic cable HH1 by the laser beam outlet OP1, and then distributed by laser beam outlet OP2 to OP8 to branch fiber-optic cables HH2 to HH8. The laser beams distributed to branch fiber-optic cables are focused by the machining tools TL1 to TL8 attached to robots RB1 to RB8 for laser machining. By controlling output levels of the laser generators with different oscillation wavelengths and different polarization characteristics, blend ratio of the laser beams can be adjusted. Distribution ratios of the laser beams at the laser beam outlets OP1 to OP8 are adjustable.
    • 激光加工设备,具有简化的激光束传输网络。 各激光束形成分为G1和G2组的激光发生器LS#11至LS#25通过汇流装置HC1和HC2聚集到光纤电缆H1和H2并传输到最上游的激光束出口​​OP1。 激光束进一步聚集到光纤电缆H3,并由激光束出口​​OP1分配到分支光纤电缆HH1,然后由激光束出口​​OP2分配到OP8以分支光纤电缆HH2至HH8。 分配到分支光纤电缆的激光束由机器人RB1至RB8附加的加工工具TL1至TL8聚焦,用于激光加工。 通过控制具有不同振荡波长和不同极化特性的激光发生器的输出电平,可以调整激光束的混合比。 激光束出口​​OP1至OP8处的激光束的分布比是可调节的。
    • 3. 发明授权
    • Laser machining apparatus
    • 激光加工设备
    • US06538231B2
    • 2003-03-25
    • US09813025
    • 2001-03-21
    • Norio KarubeAtsushi WatanabeNobuaki IehisaAkihiro TeradaMitsuhiro Okuda
    • Norio KarubeAtsushi WatanabeNobuaki IehisaAkihiro TeradaMitsuhiro Okuda
    • B23K2606
    • B23K26/0613B23K26/067
    • A plurality of laser generators are provided to be environmentally separated from a machining station, and temperature, humidity, vibration, cleanliness and the like are detected by a sensor, and displayed. When an abnormal environment is detected, machining operation is stopped immediately or after a predetermined time elapsed. The laser generators are grouped according to each machining tool, and fiber-optic cable switching devices FC3 and FC4 are arranged for each group. By the switchover of the laser generator, and the selective connection of a fiber-optic cable by using the fiber-optic cable switching device, the degree of freedom in selecting the laser generator and the fiber-optic cable is produced. The degree of freedom is utilized according to the abnormality of the laser generator, the abnormality of the fiber-optic cable, the type of machining work, and the like, by which a machining apparatus in which the occurrence of a partial failure does not lead to long-term shutdown of a manufacturing line can be obtained.
    • 多个激光发生器被设置为与加工台环境分离,并且通过传感器检测温度,湿度,振动,清洁度等并显示。 当检测到异常环境时,立即停止加工操作或经过预定时间。 激光发生器根据每个加工工具进行分组,并为每个组布置光纤电缆交换设备FC3和FC4。 通过激光发生器的切换以及通过使用光纤电缆切换装置选择性地连接光纤电缆,产生了选择激光发生器和光纤电缆的自由度。 根据激光发生器的异常,光纤电缆的异常,加工工作的类型等来利用自由度,通过该自由度,发生部分故障的加工装置不会导致 可以获得长期停产的生产线。
    • 4. 发明授权
    • Operation line searching method and robot/sensor system having operation line searching function
    • 具有操作线搜索功能的操作线搜索方法和机器人/传感器系统
    • US06321139B1
    • 2001-11-20
    • US09194610
    • 1998-11-30
    • Akihiro TeradaMitsuhiro Okuda
    • Akihiro TeradaMitsuhiro Okuda
    • G05B19418
    • B25J9/1697G05B2219/37571G05B2219/45104G05B2219/49386
    • An operation line searching method in which an operation start position is automatically approached and a robot/sensor system having such function of detecting the operation line. A robot having a laser sensor and an operation tool attached to a distal end thereof approaches an operation start position Q1 using various searching motion path patterns (a) to (d). Pattern (a) is determined to avoid an obstacle F or an obstructively-shaped portion G. The path thereof, for example, can be determined by specifying a coordinate axis of a coordinate system w. Patterns (b) and (c) are carried out by teaching, to the robot, data for determining the paths thereof in order. Pattern (d) is carried out in the following manner: an initial parameter , an angle of rotation and a norm increase factor are specified as parameters, and at the time when incremental travel quantity of a (i+1)th occurrence (i=0, 1, 2, . . . ) Should be obtained, it is obtained by calculating − , where the vector is obtained from the last obtained vector based on the illustrated relationship (the angle of rotation and the norm growth factor).
    • 自动接近操作开始位置的操作线搜索方法和具有检测操作线的功能的机器人/传感器系统。 具有激光传感器和附接到其远端的操作工具的机器人使用各种搜索运动路径图案(a)至(d)接近操作开始位置Q1。 确定图案(a)以避免障碍物F或阻塞形状部分G.例如,其路径可以通过指定坐标系统w的坐标轴来确定。 模式(b)和(c)通过向机器人教导依次进行确定其路径的数据来进行。 模式(d)以以下方式进行:初始参数,旋转角度和范数增加因子被指定为参数,并且在第(i + 1)次发生的增量行驶量 (i = 0,1,2,...)通过计算 - Vi>获得,其中从最后得到的矢量Vi获得矢量 基于所示的关系(旋转角度和标准生长因子)。
    • 5. 发明授权
    • Welding robot control system
    • 焊接机器人控制系统
    • US6040554A
    • 2000-03-21
    • US43487
    • 1998-03-19
    • Akihiro TeradaMitsuhiro Okuda
    • Akihiro TeradaMitsuhiro Okuda
    • B23K9/095B23K9/127H01S3/00
    • B23K9/1274
    • A control system of a welding robot for performing realtime tracking using a laser sensor in which a welding operation in passing a tack welded portion is rationally coped with. An arc welding torch and a laser sensor LS are mounted on a robot hand. A tool center point is set to coincide with an aimed position of a distal end of a welding wire. The tool center point is positioned at an advancing end of a formed bead B and immediately before a tack welded portion A1. The tool center point 4 is also positioned on a welding reference line (P.sub.1 .fwdarw. . . . .fwdarw.P.sub.6). A bright line 5 is formed between points 51 and 52 by a laser beam emitted from the laser sensor LS with a deflection range SC. A detected point SA is positioned at an edge of the tack welded portion A1 on the bright line 5 (there may be found no detected point). A deviation of the detected point SA from the proper welding reference line is determined based on a direction of a robot path immediately before the detected point. In such case, a detection substitutive point Q is determined based on the robot path immediately before the detected point and the TCP is moved toward the determined point. Detection substitutive points following the point Q are successively determined until the tack welded portion A1 has been passed, and the robot follows a path along a series of the detection substitutive points.
    • PCT No.PCT / JP97 / 02532 Sec。 371日期:1998年3月19日 102(e)1998年3月19日PCT 1997年7月22日PCT公布。 第WO98 / 03294号公报 日期1998年1月29日一种用于使用激光传感器进行实时跟踪的焊接机器人的控制系统,其中通过定位焊接部分的焊接操作被合理地应对。 电弧焊炬和激光传感器LS安装在机器人手上。 将工具中心点设定为与焊丝的远端的目标位置一致。 刀具中心点位于形成的胎圈B的前端,并且紧靠着定位焊接部A1之前。 刀具中心点4也位于焊接参考线(P1-> ...→P6)上。 通过具有偏转范围SC的激光传感器LS发射的激光束,在点51和52之间形成亮线5。 检测点SA位于亮线5上的定位焊接部A1的边缘(可能没有发现检测点)。 基于在检测点之前的机器人路径的方向,确定检测点SA与正确的焊接基准线的偏差。 在这种情况下,基于紧接在检测点之前的机器人路径并且TCP朝向确定的点移动来确定检测替代点Q。 依次确定点Q之后的检测取代点,直到粘接部A1通过,并且机器人沿着一系列检测取代点的路径。
    • 6. 发明授权
    • Operation line tracking device using sensor
    • 操作线跟踪装置采用传感器
    • US06445979B1
    • 2002-09-03
    • US09705885
    • 2000-11-06
    • Toshihiko InoueMitsuhiro OkudaAkihiro Terada
    • Toshihiko InoueMitsuhiro OkudaAkihiro Terada
    • G05B1500
    • B25J9/1684G05B2219/37009G05B2219/4719
    • An operation line tracking device for a robot for performing an operation with a tool mounted on the robot while tracking an operation line using a sensor wherein a detection failure of the sensor is restored by automatically changing or resetting a detecting condition of the sensor when the sensor fails in detecting the operation line. If a detection failure occurs for a cause of excessive or too small quantity of light impinged on light receiving elements of a laser sensor, a laser output intensity is automatically changed. If a detection failure occurs for a cause of basing of the quantity of the impinged light, an orientation of the laser sensor is automatically adjusted. If a detection failure occurs for a cause of biasing of position of the operation line in the visual field of the laser sensor, the position of the laser sensor is automatically adjusted. If a detection failure occurs for a cause of detection of an unexpected line, an algorithm for detecting the operation line is replaced with another one. Thus, the detecting condition is automatically changed or reset in accordance with the cause of the detection failure, and the tracking operation of the robot is automatically restarted.
    • 一种用于机器人的操作线跟踪装置,用于使用安装在机器人上的工具执行操作,同时使用传感器跟踪操作线,其中当传感器的传感器自动改变或重置传感器的检测条件时,传感器的检测故障恢复 未能检测到操作线。 如果因激光传感器的光接收元件入射过多或过少的光线而导致检测失败,则激光输出强度自动变化。 如果由于撞击光量的基础而发生检测故障,则激光传感器的方位自动调整。 如果在激光传感器的视野中对操作线的位置偏置的原因发生检测失败,则自动调整激光传感器的位置。 如果检测到意外行的检测失败,则用另一个检测操作线的算法进行替换。 因此,根据检测失败的原因自动地改变或复位检测条件,并且机器人的跟踪操作被自动重启。
    • 9. 发明授权
    • Robot control apparatus for monitoring load on robot
    • 用于监控机器人负载的机器人控制装置
    • US5587635A
    • 1996-12-24
    • US446713
    • 1995-05-30
    • Atsushi WatanabeRyo NiheiAkihiro Terada
    • Atsushi WatanabeRyo NiheiAkihiro Terada
    • B25J19/06G05B19/4065H02P29/00H02K17/32
    • G05B19/4065G05B2219/37209G05B2219/37344G05B2219/45083Y02P90/265
    • A robot control apparatus in which a load exerted on a driving system of a robot is detected to make it easy to judge a time for preventive maintenance or overhaul, and life of the robot driving system. A driving torque Ta outputted to the driving system is found by subtracting a torque which is spent in a motor itself for accelerating or decelerating a rotor from an output torque T of a motor M for driving each axis of the robot. Further, an average torque of the driving torque Ta and an average speed of an output shaft of the motor M are found and displayed. An average torque of an output torque of a speed reducer and an average speed of an output shaft of the speed reducer are obtained, and, based on these values, the life of the speed reducer is determined. Then a ratio of the determined life to a rated life is obtained and displayed. An actual load exerted on the driving system is monitored, so that the time for the preventive maintenance or overhaul, and life of the driving system is easily judged. Also, the life of the speed reducer is easily predicted.
    • PCT No.PCT / JP94 / 01582 Sec。 371日期:1995年5月30日 102(e)日期1995年5月30日PCT 1994年9月27日PCT公布。 公开号WO95 / 09479 日期1995年4月6日一种机器人控制装置,其中检测到施加在机器人的驱动系统上的负载,以便容易地判断用于预防性维护或大修的时间以及机器人驱动系统的寿命。 通过从用于驱动机器人的每个轴的电动机M的输出转矩T减去用于电动机本身用于加速或减速转子的转矩,找到驱动系统输出的驱动转矩Ta。 此外,找到并显示驱动转矩Ta的平均转矩和电动机M的输出轴的平均速度。 获得减速器的输出转矩的平均转矩和减速器的输出轴的平均转速,并根据这些值确定减速机的寿命。 然后获得并显示确定的寿命与额定寿命的比率。 对驱动系统施加的实际负载进行监控,以便容易地判断驾驶系统的预防性维护或大修时间和使用寿命。 此外,减速器的寿命也容易预测。