Method and apparatus for manufacturing an article in the form of a scroll
    2.
    发明授权
    Method and apparatus for manufacturing an article in the form of a scroll 失效
    用于制造卷轴形式的制品的方法和装置

    公开(公告)号:US5580198A

    公开(公告)日:1996-12-03

    申请号:US597660

    申请日:1996-02-07

    摘要: A tool is brought into contact with a radially outer part of an inner wall surface of a scrollwall along an X-axis at a position displaced from the center of a basic circle of an involute curve by a radius of the basic circle along a Y-axis. Thereafter, the tool and the scrollwall are relatively moved along the X- and Y-axes while rotating the scrollwall about the center of the basic circle and keeping a normal direction of the wall surface at a contact point with the tool parallel with the X-axis, so that the tool is brought into contact with the wall surface from the same wall surface. In this way, the inner wall surface the wall surface at the center and the outer wall surface can be continuously processed in the same direction. The processing can be easily corrected based on a processing error resulting from the deviation of the positional relationship from a predetermined one, with the result that the processing accuracy can be maintained at a satisfactory level.

    摘要翻译: 沿着X轴在与渐开线曲线的基本圆的中心偏移基本圆的半径的位置沿Y轴方向使工具与涡旋壁的内壁面的径向外侧部分接触, 轴。 此后,工具和卷壁相对于X轴和Y轴相对移动,同时围绕基本圆的中心旋转涡旋壁并且保持壁表面的法线方向与工具平行于X轴的接触点处, 轴,使得工具与壁表面从同一壁表面接触。 以这种方式,可以在相同的方向上连续地处理在中心和外壁表面处的壁表面的内壁表面。 可以基于由于与预定位置关系的偏离而产生的处理误差容易地校正处理,从而可以将处理精度保持在令人满意的水平。

    Method and apparatus for manufacturing an article in the form of a scroll
    3.
    发明授权
    Method and apparatus for manufacturing an article in the form of a scroll 失效
    用于制造卷轴形式的制品的方法和装置

    公开(公告)号:US5564185A

    公开(公告)日:1996-10-15

    申请号:US288522

    申请日:1994-08-10

    摘要: A tool is brought into contact with a radially outer part of an inner wall surface of a scrollwall along an X-axis at a position displaced from the center of a basic circle of an involute curve by a radius of the basic circle along a Y-axis. Thereafter, the tool and the scrollwall are relatively moved along the X- and Y-axes while rotating the scrollwall about the center of the basic circle and keeping a normal direction of the wall surface at a contact point with the tool parallel with the X-axis, so that the tool is brought into contact with the wall surface from the same wall surface. In this way, the inner wall surface, the wall surface at the center and the outer wall surface can be continuously processed in the same direction. The processing can be easily corrected based on a processing error resulting from the deviation of the positional relationship from a predetermined one, with the result that the processing accuracy can be maintained at a satisfactory level.

    摘要翻译: 沿着X轴在与渐开线曲线的基本圆的中心偏移基本圆的半径的位置沿Y轴方向使工具与涡旋壁的内壁面的径向外侧部分接触, 轴。 此后,工具和卷壁相对于X轴和Y轴相对移动,同时围绕基本圆的中心旋转涡旋壁并且保持壁表面的法线方向与工具平行于X轴的接触点处, 轴,使得工具与壁表面从同一壁表面接触。 以这种方式,可以在相同的方向上连续地处理内壁表面,中心的壁表面和外壁表面。 可以基于由于与预定位置关系的偏离而产生的处理误差容易地校正处理,从而可以将处理精度保持在令人满意的水平。

    Numerical control unit
    4.
    发明授权
    Numerical control unit 失效
    数控单元

    公开(公告)号:US5532932A

    公开(公告)日:1996-07-02

    申请号:US405025

    申请日:1995-03-16

    申请人: Tomomitsu Niwa

    发明人: Tomomitsu Niwa

    摘要: A numerical control unit for changing a cutting condition of a machine tool during machining of a workpiece. The numerical control unit includes a knowledge storage section for storing at least two rules for changing the cutting condition. At least one of the rules defines a rate at which movement of the machine tool is decelerated based on the position of the machine tool with respect to a corner of the workpiece. Other rules may define the rate at which movement of the machine tool is decelerated based on the shape of the corner of the workpiece being machined. Also, the other rules could be established based on the material of the tool or workpiece. The knowledge storage section further includes a rule description part and assessment functions. The numerical control unit further includes an inferring section for inferring the optimum value of the cutting condition on the basis of at least the rule or rules which define the rate at which movement of the machine tool is decelerated based on the position of the machine tool with respect to the corner of the workpiece. The numerical control unit then causes a workpiece to be machined in accordance with the cutting condition inferred by the inferring section.

    摘要翻译: 一种用于在加工工件期间改变机床的切割状态的数字控制单元。 数字控制单元包括用于存储用于改变切割条件的至少两个规则的知识存储部。 至少一个规则定义了机床的运动基于机床相对于工件的拐角的位置而减速的速率。 其他规则可以基于被加工工件的角部的形状来限定机床的运动减速的速率。 此外,可以基于工具或工件的材料建立其他规则。 知识存储部分还包括规则描述部分和评估功能。 数学控制单元还包括推断部分,用于基于至少限定基于机床的位置来减速机床的速度的规则或规则来推断切割条件的最佳值, 相对于工件的角落。 然后,数字控制单元根据推断部分推断的切割条件使工件被加工。

    Method of applying a material to a rotating object by using a robot
    5.
    发明授权
    Method of applying a material to a rotating object by using a robot 失效
    通过使用机器人将材料施加到旋转物体的方法

    公开(公告)号:US5314722A

    公开(公告)日:1994-05-24

    申请号:US13666

    申请日:1993-01-28

    IPC分类号: B05B13/04 G05B19/418 B05D1/02

    摘要: Material is uniformly applied to the entire outer peripheral surface of a rotating object by using a robot. The material is discharged toward the rotating object from a nozzle (2) of a material discharging device mounted on the distal end of a robot arm, with the nozzle moved along the outer peripheral surface of the object, e.g., a truncated cone (1), rotating at a predetermined speed. A robot control device periodically calculates coordinates (x, R, 0) in a work coordinate system (P5-XwYwZw), including a target moving position (x) of the nozzle in the direction of the rotation axis and a corresponding target nozzle moving position (R) in the radial direction which are individually expressed as a function of the time elapsed after the start of the material applying process (S12). These coordinates are converted to a robot-base coordinate system (OB-XBYBZB) (S14) and converts the result to data for respective robot axes (S15). Then, a pulse distribution is executed in accordance with moving amounts for the respective robot axes in the present cycle which are calculated based on the above data and data obtained in the preceding cycle (S16-S18). As a result, the nozzle mounted on the robot arm is moved at a speed corresponding to the outer diameter of the rotating object which varies along its rotation axis, to uniformly apply the material to the entire outer peripheral surface of the rotating object to the target thickness.

    摘要翻译: 通过使用机器人将材料均匀地施加到旋转物体的整个外周面。 材料从安装在机器人臂的远端的材料排出装置的喷嘴(2)朝向旋转物体排出,喷嘴沿物体的外周表面移动,例如截锥体(1) 以预定速度旋转。 机器人控制装置周期性地计算工作坐标系(P5-XwYwZw)中的坐标(x,R,0),包括喷嘴在旋转轴线方向上的目标移动位置(x)和相应的目标喷嘴移动位置 (R)在径向方向上分别表示为材料施加处理开始之后经过的时间的函数(S12)。 将这些坐标转换为机器人坐标系(OB-XBYBZB)(S14),并将结果转换为各机器人轴的数据(S15)。 然后,根据基于上述数据和前一周期获得的数据计算的本循环中的各机器人轴的移动量来执行脉冲分配(S16-S18)。 结果,安装在机器人手臂上的喷嘴以对应于沿其旋转轴线变化的旋转物体的外径的速度移动,以均匀地将材料施加到旋转物体的整个外周面到目标 厚度。

    Numerical control system for a lathe
    6.
    发明授权
    Numerical control system for a lathe 失效
    数字控制系统

    公开(公告)号:US3725651A

    公开(公告)日:1973-04-03

    申请号:US3725651D

    申请日:1970-08-05

    申请人: BENDIX CORP

    发明人: CUTLER H

    IPC分类号: G05B19/18 G06F15/46

    摘要: A continuous-path numerical system controls the position of the cutter of a lathe with respect to the workpiece and the rate of rotation of the work spindle in accordance with a series of numerical commands encoded on a punched tape. Each command, in addition to position information, includes information relating to the desired rate of movement of the cutter over the workpiece in surface feet per minute and the desired rate of advancement of the cutter in terms of inches per revolution. The commands controlling the position of the cutter with respect to the center line of the spindle are continuously monitored and the quantity representative of the commanded separation is divided into the programmed surface feet-per-minute number to derive a number used to control the spindle motor drive. This system additionally calculates a feedrate number based on the incremental distances of motion along the X and Z axes called for by a particular command and the inches per revolution number. A pulse train generated by a transducer which senses the rate of rotation of the spindle is multiplied by this feedrate number to derive command pulse trains for DDA-type interpolators which generate control signals for the X and Z axes.

    摘要翻译: 连续路径数值系统根据编码在穿孔带上的一系列数字命令来控制车床的切割器相对于工件的位置和工作主轴的旋转速度。 除了位置信息之外,每个命令还包括有关切割器在工件上以每分钟表面英尺的运动速度的期望速度以及切割机的每转英寸的期望速度。 控制刀具相对于主轴中心线位置的命令被连续地监视,代表命令间隔的数量被划分成编程表面每分钟数,以导出用于控制主轴电动机的数量 驾驶。 该系统还基于特定命令所需的X轴和Z轴的运动距离和每转英寸数量,计算进给速度数。 由感应主轴旋转速度的传感器产生的脉冲串乘以该进给速度数,以导出产生X轴和Z轴控制信号的DDA型内插器的指令脉冲串。

    Numerical control unit for controlling a machine tool to machine a
workpiece at an instructed feed rate along linear and rotational axes
    7.
    发明授权
    Numerical control unit for controlling a machine tool to machine a workpiece at an instructed feed rate along linear and rotational axes 失效
    数控单元,用于控制机床以沿着线性和旋转轴的指令进给速度加工工件

    公开(公告)号:US5493502A

    公开(公告)日:1996-02-20

    申请号:US935876

    申请日:1992-08-26

    申请人: Tomomitsu Niwa

    发明人: Tomomitsu Niwa

    摘要: A numerical control unit for a machining apparatus which operates under the control of a machining program comprising a plurality of blocks, such blocks being adapted to define a command or instruction for specifying and automatically controlling the relative movement between a machine tool and a workpiece with respect to one or more of linear and rotational axes, and being modifiable at starting-point and end-point areas in a single block to specify desired variations in relative movement or feedrate. The feedrate may be controlled on the basis of preset rules within a single block without dividing a machining path into a plurality of blocks for controlling the feedrate, the preset rules being changeable by an operator whereby his machining know-how can easily be incorporated into the machining program. Rules incorporating machining know-how are set in a knowledge storage section, an inferring section is provided independently of the knowledge storage section to ensure ease of additions and corrections to the rules, and the inferring section synthesizes the results of inference provided by a plurality of rules and deduces a final conclusion, whereby complex control can be easily achieved with various factors taken into consideration. Rules set in the knowledge storage section can be described in a production rule format, allowing a final conclusion to be achieved by fuzzy inference.

    摘要翻译: 一种用于在包括多个块的加工程序的控制下操作的加工装置的数字控制单元,所述块适于定义用于指定和自动控制机床和工件之间的相对运动的命令或指令, 到一个或多个线性和旋转轴线,并且可以在单个块中的起始点和终点区域修改以指定相对运动或进给速度期望的变化。 可以在单个块内基于预设规则来控制进给速度,而不将加工路径分成用于控制进给速度的多个块,预设规则可由操作者改变,由此他的加工专有技术可以容易地并入到 加工程序。 在知识存储部分中设置了包含加工专有技术的规则,独立于知识存储部分提供了推断部分,以确保对规则的容易的添加和更正,并且推断部分综合由多个 规则并推导出最终结论,从而可以通过考虑各种因素轻松实现复杂的控制。 在知识存储部分中设置的规则可以以生产规则格式描述,允许通过模糊推理来实现最终结论。

    Numerical control system for providing a constant rate of metal removal
    9.
    发明授权
    Numerical control system for providing a constant rate of metal removal 失效
    用于提供金属去除量恒定的数值控制系统

    公开(公告)号:US3665170A

    公开(公告)日:1972-05-23

    申请号:US3665170D

    申请日:1969-12-12

    申请人: GEN ELECTRIC

    摘要: A numerical control system for providing a constant rate of metal removal in terms of surface feet per unit time. The operative relationship between the rotational speed of a rotating workpiece (RPM), the effective radius in inches of the rotating workpiece (R) and the desired rate of metal removal in surface feet per minute (SFM) is defined as: The relationship is mechanized by a plurality of digital integrators which generate pulse frequency signals proportional to each side of this relationship. These pulse frequencies are then compared with the result of this comparison affecting the speed of the rotating workpiece so as to close the control loop and fully mechanize this relationship. In one embodiment, the pulse frequencies are compared by generating phase varying signals which are then phase compared. In another, a single phase varying signal is generated and phase compared with a constant phase signal. A number of alternative embodiments are disclosed for indicating the speed of the rotating workpiece including a novel digitizer which also provides a steady state signal indicative of workpiece rotational speed.