Servo controller for preventing downward displacement in gravitating axis
    1.
    发明申请
    Servo controller for preventing downward displacement in gravitating axis 有权
    伺服控制器,用于防止重力轴向下移位

    公开(公告)号:US20030076066A1

    公开(公告)日:2003-04-24

    申请号:US10269961

    申请日:2002-10-15

    申请人: Fanuc Ltd.

    IPC分类号: G05B001/06

    摘要: A servo controller capable of preventing downward displacement of a gravitating axis of a machine when an excitation of a servomotor for driving the gravitating axis is discontinued. When a shutdown command is issued, a command for shifting a position of the gravitating axis by an offset amount in a direction opposing the gravitation is issued to a servo system. Also, a command for operating a mechanical brake to apply a braking force on the gravitating axis is issued. After a predetermined time period, the excitation of the servomotor is discontinued. The position of the gravitating axis is shifted upward by the offset amount within a time-lag between an issuance of the mechanical brake operating command and actual application of the braking force by the mechanical brake, and the braking force is applied to the gravitating axis at the shifted position. When the excitation of the servomotor is discontinued, the downward displacement of the position of the gravitating axis due to a backlash of the mechanical brake is compensated by the upward shifting of the gravitating axis, thereby movable elements connected to the gravitating axis is prevented from collision or interference with peripheral objects.

    摘要翻译: 一种当用于驱动重力轴的伺服电动机的激励被停止时能够防止机器的重力轴的向下位移的伺服控制器。 当发出关闭命令时,向伺服系统发出用于将重力轴位置偏移与重力相反方向的偏移量的指令。 此外,发出用于操作机械制动器以在重力轴上施加制动力的命令。 在预定时间段之后,停止伺服电动机的激励。 引力轴的位置在机械制动器操作指令的发出与机械制动器的实际施加制动力之间的时间滞后期间向上移位偏移量,并且制动力施加到引力轴 转移位置。 当停止伺服电机的激励时,由于机械制动器的间隙引起的重力轴位置的向下位移通过引力轴的向上移位来补偿,从而防止连接到引力轴的可动元件碰撞 或干扰周边物体。

    Programmed path for automatic tool retraction and return responsive to
degradation threshold
    2.
    发明授权
    Programmed path for automatic tool retraction and return responsive to degradation threshold 失效
    响应退化阈值自动退刀和返回的程序路径

    公开(公告)号:US4723219A

    公开(公告)日:1988-02-02

    申请号:US747809

    申请日:1985-06-21

    摘要: A general safe retract and return function is provided for a machine tool which is easily programmed for all cases to avoid collision and interference between the workpiece and tool and to reduce the damage or imperfection in the surface of the machined workpiece caused by the termination and/or resumption of machining. The general safe retract and return function includes parameters defining incremental retract and entry vectors relative to the direction of the machining path in the region of the interrupted point. Preferably the tool and workpiece are reengaged at the interrupted point along an entry ventor which is at a grazing angle with respect to the reverse of the tool feed direction along the machining path, thereby avoiding remachining of the workpieces but providing a smooth surface finish. Preferably the general safe retract and return function interprets programmer specified conditional expressions to determine when logical jumps should be performed to disengage the tool and workpiece and execute respective user-defined interrupt subroutines for corrective action. Preferably the logical jump for certain limit conditions or trigger signals is conditional based upon the engagement and disengagement of the tool and workpiece as specified by rapid traverse and feed rate moves, beginning and ending distances for the feed rate moves, and the depth of cut at the beginning and ending points of the feed rate moves.

    摘要翻译: 为机床提供了一般的安全的退回和返回功能,该机床易于编程,适用于所有情况,以避免工件和工具之间的碰撞和干扰,并减少加工工件表面由端接和/ 或恢复加工。 通用安全退回和返回功能包括定义相对于中断点区域中加工路径方向的增量回退和入口向量的参数。 优选地,工具和工件沿着沿着加工路径相对于沿着工具进给方向相反的掠角的进入通风口在中断点处重新接合,从而避免了工件的再加工,但是提供光滑的表面光洁度。 优选地,一般的安全退回和返回功能解释程序员指定的条件表达式以确定何时应执行逻辑跳转以脱离工具和工件,并执行相应的用户定义的中断子程序以进行纠正。 优选地,对于某些限制条件或触发信号的逻辑跳转是基于通过快速移动和进给速度移动,进给速度移动的开始和结束距离以及进给速度移动深度的工具和工件的接合和分离而有条件的 饲料价格的起点和终点移动。

    MACHINE TOOL SYSTEM CONTROL HAVING AUTOMATIC SAFE REPOSITIONING
    3.
    发明申请
    MACHINE TOOL SYSTEM CONTROL HAVING AUTOMATIC SAFE REPOSITIONING 有权
    具有自动安全检测功能的机床系统控制

    公开(公告)号:US20110087364A1

    公开(公告)日:2011-04-14

    申请号:US12575847

    申请日:2009-10-08

    申请人: Paul J. Gray

    发明人: Paul J. Gray

    IPC分类号: B23Q15/22

    摘要: The present disclosure includes a motion control system for a machine tool system configured to shape a part with a tool, including an I/O module with machine configuration information that defines limits of a three-dimensional working space of the machine tool system. The I/O module further includes a part program that specifies first and second positions of the tool without reference to the working space limits. The motion control system further includes a software controller configured to internally process moves to determine whether the tool can be repositioned from the first position to the second position while maintaining the tool above a minimum clearance from the part and within the working space limits, output the internally processed moves to the machine tool system to cause movement of the tool if the tool can be safely repositioned, and output an error if the tool cannot be safely repositioned.

    摘要翻译: 本公开包括用于机床系统的运动控制系统,该机床系统被配置成用工具对部件成形,包括具有定义机床系统的三维工作空间限制的机器配置信息的I / O模块。 I / O模块还包括一个部件程序,它指定工具的第一和第二位置,而不参考工作空间限制。 运动控制系统还包括软件控制器,该软件控制器被配置为内部处理移动以确定工具是否可以从第一位置重新定位到第二位置,同时将工具保持在与零件之间的最小间隙以及工作空间限制之内,输出 如果工具可以安全地重新定位,则内部处理移动到机床系统以引起工具的移动,并且如果工具不能安全地重新定位,则输出错误。

    Automatic grinding apparatus
    4.
    发明授权
    Automatic grinding apparatus 失效
    自动研磨机

    公开(公告)号:US5299389A

    公开(公告)日:1994-04-05

    申请号:US956932

    申请日:1992-10-02

    IPC分类号: B25J9/16 G05B19/416 B24B49/00

    摘要: An automatic grinding apparatus includes a constant rotating grinder (24) having a motor (25) in which a load current increases or decreases due to the metal removal rate per unit hour, a travelling device for moving the grinder three-dimensionally along the grinding surface, a sliding device (20) for adjusting the distance between the grinder and an object (50, 51) to be found and a controller for controlling the sliding device to allow the load current of the grinding motor to be constant. An articulated robot or a cartesian coordinate robot is used for the travelling device. The automatic grinding apparatus starts the grinding motor at first, halting the travelling device at the initiation of grinding, permitting the grinder to approach the object to be ground after a time interval and starting the travelling device simultaneously or a little later after detecting that the grinding disk (26) contacts the object to be ground, due to the variation of the load current of the grinding motor. The apparatus restores respective relative positions of the grinder and the sliding device (20) to a certain position by regulating the operation time of an elevation motor (21) of the sliding device or by directly detecting the location of the slider of the sliding device before and after the grinding process. The automatic grinding apparatus is used for grinding a workpiece (50) such as for finishing welded metal and deburring or chamfering the work piece.

    摘要翻译: 一种自动磨削装置,包括具有电动机(25)的恒定旋转研磨机(24),由于每单位时间的金属去除率,负载电流增加或减少,用于沿研磨面三维地移动研磨机的行进装置 ,用于调整研磨机与要找到的物体(50,51)之间的距离的滑动装置(20)和用于控制所述滑动装置以允许所述研磨电机的负载电流恒定的控制器。 行走装置使用铰接机器人或笛卡尔坐标机器人。 首先,自动研磨装置启动研磨电机,在开始研磨时使行走装置停止,使得研磨机能够在时间间隔后接近被研磨物体,并且在检测到研磨之后同时或稍后起动行进装置 由于磨削电机的负载电流的变化,盘(26)接触被研磨物体。 该装置通过调节滑动装置的升降马达(21)的操作时间或者通过直接检测滑动装置的滑块的位置,将研磨机和滑动装置(20)的各个相对位置恢复到特定位置 并在研磨过程之后。 自动研磨装置用于研磨工件(50),例如用于整理焊接金属和去毛刺或倒角工件。

    Method of controlling a coordinate measuring apparatus
    5.
    发明授权
    Method of controlling a coordinate measuring apparatus 失效
    控制坐标测量装置的方法

    公开(公告)号:US5491638A

    公开(公告)日:1996-02-13

    申请号:US329302

    申请日:1994-10-26

    摘要: The invention is directed to a method for automatically generating travel paths to the next geometric elements to be measured when there is a collision of the probe 25 or the probe head 10, for example, with the workpiece 22. The method utilizes safety-reference surfaces (S1 to S5) placed in the form of an enclosing parallelepiped about the workpiece 22. The shortest collision-free connecting paths (P1-P2-P3) from one geometric element to the next are computed on these safety-reference surfaces.

    摘要翻译: 本发明涉及一种当探针25或探针头10与工件22发生碰撞时,自动产生要测量的下一个几何元件的行进路径的方法。该方法利用安全参考表面 (S1至S5)以围绕工件22的包围平行六面体的形式放置。在这些安全参考表面上计算从一个几何元件到下一个几何元件的最短的无碰撞连接路径(P1-P2-P3)。

    Method for machining a blank by means of a tool

    公开(公告)号:US09977421B2

    公开(公告)日:2018-05-22

    申请号:US15035241

    申请日:2014-11-07

    摘要: The present invention relates to a method for machining a blank (10) by means of a tool (12) for producing a finished part, wherein the tool (12) is moved during the machining on a guide path (14) comprising at least three successive path segments (16, 18, 20; 16-1, 18-1, 20-1; 16-2, 18-2, 20-2; 18′) in the form of two machining segments (16, 20; 16-1, 20-1; 16-2, 20-2) and one connecting segment (18; 18-1; 18-2; 18′), which connects the two machining segments (16, 20; 16-1, 20-1; 16-2, 20-2) to one another, and wherein the connecting segment (18; 18-1; 18-2; 18′) of the path segments (16, 18, 20; 16-1, 18-1, 20-1; 16-2, 18-2, 20-2; 18′), which connecting segment connects the two machining segments (16, 20; 16-1, 20-1; 16-2, 20-2), is determined in terms of its shape by the forward feed (F1) of the tool (12) at the end (24) of the first machining segment (16) and by the forward feed (F2) of the tool (12) at the start (30) of the second machining segment (20).

    Method for Machining a Blank by Means of a Tool
    8.
    发明申请
    Method for Machining a Blank by Means of a Tool 有权
    通过工具加工坯料的方法

    公开(公告)号:US20160274566A1

    公开(公告)日:2016-09-22

    申请号:US15035241

    申请日:2014-11-07

    IPC分类号: G05B19/402

    摘要: The present invention relates to a method for machining a blank (10) by means of a tool (12) for producing a finished part, wherein the tool (12) is moved during the machining on a guide path (14) comprising at least three successive path segments (16, 18, 20; 16-1, 18-1, 20-1; 16-2, 18-2, 20-2; 18′) in the form of two machining segments (16, 20; 16-1, 20-1; 16-2, 20-2) and one connecting segment (18; 18-1; 18-2; 18′), which connects the two machining segments (16, 20; 16-1, 20-1; 16-2, 20-2) to one another, and wherein the connecting segment (18; 18-1; 18-2; 18′) of the path segments (16, 18, 20; 16-1, 18-1, 20-1; 16-2, 18-2, 20-2; 18′), which connecting segment connects the two machining segments (16, 20; 16-1, 20-1; 16-2, 20-2), is determined in terms of its shape by the forward feed (F1) of the tool (12) at the end (24) of the first machining segment (16) and by the forward feed (F2) of the tool (12) at the start (30) of the second machining segment (20).

    摘要翻译: 本发明涉及一种用于通过用于生产成品部件的工具(12)来加工坯件(10)的方法,其中所述工具(12)在加工期间在包括至少三个的导向路径(14)上移动 形式为两个加工段(16,20; 18')的连续路径段(16,18,20; 16-1,18-1,20-1; 16-2,18-2,20-2; 18') -1,20-1; 16-2,20-2)和一个连接段(18; 18-1; 18-2; 18'),其连接两个加工段(16,20; 16-1,20 -1; 16-2,20-2)彼此连接,并且其中路径段(16,18,20; 16-1,18)的连接段(18; 18-1; 18-2; 18') -1,20-1; 16-2,18-2,20-2; 18'),所述连接段将两个加工段(16,20; 16-1,20-1; 16-2,20- 通过在第一加工段(16)的端部(24)处的工具(12)的向前进给(F1)和工具(12)的向前进给(F2)来确定其形状 )在第二加工段(20)的开始(30)处。

    Numerical control for machine-tools, robots or the like
    9.
    发明授权
    Numerical control for machine-tools, robots or the like 有权
    机床,机器人等的数值控制

    公开(公告)号:US06529795B1

    公开(公告)日:2003-03-04

    申请号:US09462655

    申请日:2000-03-31

    IPC分类号: G06F1900

    摘要: By implementing a sequence control in a numerical control, tool-related machining operations and position elements are executed depending on the technology-dependent sequence in the machining program so that all cycles of a machining operation are selected consecutively as modal cycles, with all cycles being selected consecutively for a position element for each cycle for a machining operation, and the respective operation being executed at the position of the respective position element prior to the following cycle being selected as a modal cycle for an operation. Thus unnecessary tool changes are avoided and therefore machining productivity is increased.

    摘要翻译: 通过在数值控制中实现顺序控制,根据加工程序中与工艺相关的顺序执行与刀具相关的加工操作和位置元件,使得加工操作的所有循环都被连续选择为模态循环,所有循环为 连续选择用于每个循环的位置元素用于加工操作,并且在随后的循环之前的各个位置元素的位置处执行相应的操作作为操作的模态周期。 因此避免了不必要的刀具更换,因此增加了加工生产率。

    Method and apparatus for operating a hydraulic ram
    10.
    发明授权
    Method and apparatus for operating a hydraulic ram 失效
    用于操作液压油缸的方法和装置

    公开(公告)号:US5435216A

    公开(公告)日:1995-07-25

    申请号:US98108

    申请日:1993-07-28

    申请人: William P. Murphy

    发明人: William P. Murphy

    摘要: A method for controlling punch strokes of a punch press machine includes the step of performing a first punching operation with a punching tool wherein a sheet of material is in a first preselected position. A second punching operation is then initiated with the punching tool at a variable hover height before the sheet of material reaches a second preselected position. The variable hover height of the punching tool is determined by the distance between the first and second punching operations. If the sheet reaches a predetermined in-position zone before the punching tool reaches maximum hover height, the ram changes direction moving downward. The punch reaches the material just prior to the work piece coming to a stop thereupon performing the next punching operation.

    摘要翻译: 一种用于控制冲压机冲头冲程的方法包括以下步骤:用冲压工具执行第一冲压操作,其中材料片处于第一预选位置。 然后在该材料片材达到第二预选位置之前,使冲压工具以可变的悬浮高度开始第二冲压操作。 冲压工具的可变悬停高度由第一和第二冲压操作之间的距离决定。 如果在冲压工具达到最大悬停高度之前纸张到达预定的就位区域,则压头改变方向向下移动。 冲压件在工件停止之前到达材料,从而进行下一次冲压操作。