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公开(公告)号:US5387061A
公开(公告)日:1995-02-07
申请号:US950194
申请日:1992-09-24
申请人: William E. Barkman , Edwin F. Babelay , Paul D. DeMint , Thomas L. Hebble , Richard E. Igou , Richard R. Williams , Edward J. Klages , William H. Rasnick
发明人: William E. Barkman , Edwin F. Babelay , Paul D. DeMint , Thomas L. Hebble , Richard E. Igou , Richard R. Williams , Edward J. Klages , William H. Rasnick
IPC分类号: B23Q17/09 , B23Q17/24 , G05B19/401 , G05B19/42
CPC分类号: G05B19/401 , B23Q17/0985 , B23Q17/20 , B23Q17/22 , B23Q17/24 , B23Q3/1574 , G05B2219/34321 , G05B2219/36504 , G05B2219/37133 , G05B2219/37272 , G05B2219/37559 , G05B2219/49204 , G05B2219/49215 , G05B2219/50136 , G05B2219/50137 , G05B2219/50252 , Y10T409/300896 , Y10T409/303976
摘要: A compensation system for a computer-controlled machining apparatus having a controller and including a cutting tool and a workpiece holder which are movable relative to one another along preprogrammed path during a machining operation utilizes sensors for gathering information at a preselected stage of a machining operation relating to an actual condition. The controller compares the actual condition to a condition which the program presumes to exist at the preselected stage and alters the program in accordance with detected variations between the actual condition and the assumed condition. Such conditions may be related to process parameters, such as a position, dimension or shape of the cutting tool or workpiece or an environmental temperature associated with the machining operation, and such sensors may be a contact or a non-contact type of sensor or a temperature transducer.
摘要翻译: 一种具有控制器的计算机控制加工设备的补偿系统,其具有控制器并且包括可在加工操作期间沿预编程路径相对于彼此移动的切割工具和工件保持器,利用传感器在与加工操作相关的预选阶段收集信息 达到实际状况。 控制器将实际条件与程序假设存在于预选阶段的条件进行比较,并根据检测到的实际条件与假定条件之间的变化来改变程序。 这些条件可能与工艺参数有关,例如切削工具或工件的位置,尺寸或形状或与加工操作有关的环境温度,并且这种传感器可以是接触式或非接触型传感器或 温度传感器。
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公开(公告)号:US5318136A
公开(公告)日:1994-06-07
申请号:US924057
申请日:1992-09-04
IPC分类号: E21B41/00 , G05B19/416 , E21B44/00
CPC分类号: E21B44/00 , G05B19/4163 , G05B2219/34321 , G05B2219/42152 , G05B2219/45129 , G05B2219/49068
摘要: In a drilling process speed, bit thrust and penetration are monitored. Data stored in a data base relating rotational speed and thrust as adjustable variables is correlated with data on the penetration rate as controlled parameter to produce a matrix to enable prediction of penetration rate to be expected at known thrust and rotational rates. Likewise a similar matrix may be constructed for relating wear rate to adjustable variables for example speed and thrust. The parameters predicted from these variables at various values for the speed and thrust are used to construct a further matrix relating bit penetration and bit wear rates with cost per unit distance drilled and this third matrix searched for minimum cost. From the first two matrices rotation rate of the drill bit and thrust applied to the drill bit are adjusted to give a predicted penetration rate for minimum cost and the drill bit is operated at these conditions. All conditions are monitored and the information used to recalculate the various matrices to define the process.
摘要翻译: PCT No.PCT / GB91 / 00348 Sec。 371日期:1992年9月4日 102(e)日期1992年9月4日PCT 1991年3月6日PCT公布。 公开号WO91 / 14214 PCT 日期1991年9月19日。在钻孔过程中,钻头推力和穿透力被监控。 存储在与旋转速度和推力相关联的数据库中的数据作为可调整变量与作为受控参数的渗透率的数据相关联,以产生矩阵,以使得能够以已知的推力和旋转速率预测穿透速率。 同样,可以构造类似的矩阵,用于将磨损率与可调变量相关联,例如速度和推力。 用这些变量预测的各种速度和推力数值的参数用于构建一个进一步的钻头钻头与钻头磨损率相关的矩阵,每单位钻孔成本为零,而该第三个矩阵搜索最小成本。 从前两个矩阵中,钻头的旋转速度和施加到钻头的推力被调节以给出最小成本的预测穿透速率,并且在这些条件下操作钻头。 监视所有条件,并用于重新计算各种矩阵以定义过程的信息。
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公开(公告)号:US5255199A
公开(公告)日:1993-10-19
申请号:US628525
申请日:1990-12-14
IPC分类号: B23Q17/09 , B23Q17/24 , G05B19/401 , G05B19/18
CPC分类号: G05B19/401 , B23Q17/09 , B23Q17/24 , G05B2219/34321 , G05B2219/36504 , G05B2219/37133 , G05B2219/37272 , G05B2219/37559 , G05B2219/49204 , G05B2219/49215 , G05B2219/50136 , G05B2219/50137 , G05B2219/50252
摘要: A compensation system for a computer-controlled machining apparatus having a controller and including a cutting tool and a workpiece holder which are movable relative to one another along a preprogrammed path during a machining operation utilizes a camera and a vision computer for gathering information at a preselected stage of a machining operation relating to the actual shape and size of the cutting edge of the cutting tool and for altering the preprogrammed path in accordance with detected variations between the actual size and shape of the cutting edge and an assumed size and shape of the cutting edge. The camera obtains an image of the cutting tool against a background so that the cutting tool and background possess contrasting light intensities, and the vision computer utilizes the contrasting light intensities of the image to locate points therein which correspond to points along the actual cutting edge. Following a series of computations involving the determining of a tool center from the points identified along the tool edge, the results of the computations are fed to the controller where the preprogrammed path is altered as aforedescribed.
摘要翻译: 具有控制器的计算机控制加工装置的补偿系统,其具有控制器并且包括可在加工操作期间沿着预编程路径相对于彼此移动的切割工具和工件保持器,利用照相机和视觉计算机在预选中收集信息 与切割工具的切割刃的实际形状和尺寸相关的加工操作的阶段,并且根据检测到的切割边缘的实际尺寸和形状之间的变化以及切割的假设尺寸和形状来改变预编程路径 边缘。 照相机根据背景获得切割工具的图像,使得切割工具和背景具有对比度的光强度,并且视觉计算机利用图像的对比光强度来定位其中对应于沿着实际切割边缘的点的点。 在一系列计算涉及从沿着刀沿确定的点确定刀具中心之后,计算结果被馈送到控制器,其中预编程路径如上所述被改变。
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