Method of bending extruded shapes
    42.
    发明授权
    Method of bending extruded shapes 失效
    弯曲挤压形状的方法

    公开(公告)号:US5743124A

    公开(公告)日:1998-04-28

    申请号:US747703

    申请日:1996-11-12

    CPC classification number: B21D7/14 B21D7/025 Y10S72/702

    Abstract: A method of bending extruded shapes of the present invention controls a bending radius and a bending angle in accordance with a moving distance of a movable bending die. In the bending process, hardness of an extruded shape to be processed is measured and converted into proof stress, and the bending condition for compensating the springback is determined. A correction coefficient C showing a ratio of a practical value of the moving distance and a theoretical value of the moving distance in a case of no spring-back occurring is defined by a function of Young's modulus E, geometrical coefficient Z, bending radius R and proof stress .sigma..sub.0.2 for the extruded shape to be processed. The correction coefficient C is obtained by measuring the hardness of the extruded shape to be processed, converting the measured hardness into the proof stress, and substituting the proof stress and a predetermined bending radius R into the function, and the practical value of the moving distance of the movable bending die is determined.

    Abstract translation: 本发明的弯曲挤压形状的方法根据可动弯曲模具的移动距离来控制弯曲半径和弯曲角度。 在弯曲过程中,测量待加工的挤出形状的硬度,并将其转化为证明应力,并且确定用于补偿回弹的弯曲条件。 表示在弹跳不发生的情况下移动距离的实际值与移动距离的理论值之比的校正系数C由杨氏模量E,几何系数Z,弯曲半径R和 挤出形状的加工抗力σσ0.2。 校正系数C是通过测定被加工的挤出形状的硬度,将测定的硬度转换为有效应力,将试验应力和规定的弯曲半径R代入功能而得到的,移动距离的实用值 确定可动弯曲模具。

    Process for the permanent bending of deformable bodies
    43.
    发明授权
    Process for the permanent bending of deformable bodies 失效
    可变形体永久弯曲的工艺

    公开(公告)号:US5535611A

    公开(公告)日:1996-07-16

    申请号:US353846

    申请日:1994-11-11

    CPC classification number: B21D7/14 B21D5/04 Y10S72/702

    Abstract: A method of permanently bending a first part of a subject body having non-linear elastic properties about a bending line to a desired angle relative to a second part of the body in which a first set of data is produced from similar bodies of the amount of permanent bending obtained as a function of different amounts of angular displacement of the first part, the first part of a subject body is permanently bent to a first angle different from said desired angle by angularly displacing the subject body's first part by an amount determined by the first set of data and thereafter the first part of the subject body is further angularly displaced from the first angle to permanently bend its first part to the desired angle.

    Abstract translation: 一种将具有关于弯曲线的非线性弹性性质的物体的第一部分相对于身体的第二部分永久地弯曲到相对于身体的第二部分的期望的方法,其中第一组数据由 作为第一部分的不同角度位移的函数获得的永久性弯曲,被检体的第一部分通过将被检体的第一部分角度地移位由第一部分确定的量而永久地弯曲成不同于所述期望角度的第一角度 第一组数据,此后,主体的第一部分进一步从第一角度角度地移位,以将其第一部分永久地弯曲到期望的角度。

    Springback stretch press
    44.
    发明授权
    Springback stretch press 失效
    回弹拉伸压力机

    公开(公告)号:US4989439A

    公开(公告)日:1991-02-05

    申请号:US272403

    申请日:1988-11-17

    CPC classification number: B21D25/02 Y10S72/702

    Abstract: A device and method for taking to account the elasticity of materials during bending operations to cause the proper amount of overbending such that after springback and while at rest, the material assumes its intended shape.

    Abstract translation: 一种用于在弯曲操作期间考虑材料的弹性以引起适当量的过度弯曲的装置和方法,使得在回弹之后并且在静止时材料呈现其预期的形状。

    Smart straightening press
    45.
    发明授权
    Smart straightening press 失效
    智能矫直机

    公开(公告)号:US4912957A

    公开(公告)日:1990-04-03

    申请号:US345009

    申请日:1989-04-28

    CPC classification number: B21D3/10 Y10S72/702

    Abstract: A straightening press of the type wherein a workpiece is supported for deflection in a given direction by an anvil engageable with the workpiece. A reference spring is supported for deflection with the reference spring supports being serially interconnected with the anvil. In a preferred embodiment, a floating bridge carries the anvil and reference spring supports. Deflecting force applied to the reference spring, as by a ram, is transmitted to the workpiece via the floating bridge. A change in the differential displacement of the ram and floating bridge is detected to determine the onset of plastic deformation of the workpiece.

    Abstract translation: 一种矫直压力机,其中工件被支撑以通过可与工件接合的砧在给定方向上偏转。 参考弹簧被支撑用于偏转,参考弹簧支撑件与砧座串联连接。 在优选实施例中,浮桥承载砧和参考弹簧支撑件。 通过柱塞施加到基准弹簧的偏转力通过浮桥传递给工件。 检测冲头和浮桥的差动位移的变化,以确定工件塑性变形的开始。

    Adaptive method and apparatus for correcting deviations in the shape of
objects
    46.
    发明授权
    Adaptive method and apparatus for correcting deviations in the shape of objects 失效
    用于校正物体形状偏差的自适应方法和装置

    公开(公告)号:US4531391A

    公开(公告)日:1985-07-30

    申请号:US361142

    申请日:1982-03-24

    Applicant: Guy R. Engman

    Inventor: Guy R. Engman

    CPC classification number: G01B7/282 B21D3/10 Y10S72/702

    Abstract: Deviations from desired shape of plasticly deformable objects are corrected within narrow tolerances by a method wherein the real shape of the object is sensed, whereupon the deviation from the desired shape is determined and a correction length corresponding to the deviation is defined, after which the object in a straightening operation is subjected to a shape correction corresponding to the correction length. At least one measurement transmitter (4) is disposed to sense the real shape of the object (2) and deliver a corresponding output signal which is fed to a unit (6,8,9) for comparison with information about the desired shape of the object stored in the unit for determining the deviation, the unit delivering an output signal defining a correction length corresponding to the deviation, the output signal controlling a straightening device (12,14,16,18,20,22,24) to carry out a correction of the shape of the object corresponding to the correction length. The method and the apparatus are adaptive as the shape of the object (2) is sensed after the shape correction and the relationship between correction length and deviation in the shape is modified in response to a possibly remaining deviation in the shape.

    Abstract translation: 通过其中感测到物体的实际形状的方法在窄公差内进行偏差校正,由此确定与期望形状的偏差,并且定义与偏差相对应的校正长度,之后对象 在矫直操作中对与校正长度对应的形状校正进行处理。 设置至少一个测量发射器(4)以感测物体(2)的实际形状,并传送相应的输出信号,该输出信号被馈送到单元(6,8,9),用于与关于 存储在单元中的用于确定偏差的对象,所述单元传送限定对应于偏差的校正长度的输出信号,所述输出信号控制矫直装置(12,14,16,18,20,22,24)以执行 对应于校正长度的对象的形状的校正。 该方法和装置是自适应的,因为在形状校正之后检测到物体(2)的形状,并且响应于形状中可能的剩余偏差来修改形状的校正长度和偏差之间的关系。

    Automatic process and aligning apparatus having a plurality of aligning
stations
    48.
    发明授权
    Automatic process and aligning apparatus having a plurality of aligning stations 失效
    具有多个对准台的自动处理和对准装置

    公开(公告)号:US3948076A

    公开(公告)日:1976-04-06

    申请号:US506728

    申请日:1974-09-17

    Abstract: Method and apparatus for automatically straightening elongated and at least partly rotationally symmetrical workpieces by applying a sequence of straightening strokes to a workpiece at each of a plurality of straightening stations to counteract a deformation until the measured instantaneous values of the deformation fall within a predetermined deformation tolerance. The depth of the straightening strokes is determined by the difference between the measured instantaneous values of the deformation and the mean of the maximum and minimum values of the deformation.

    Abstract translation: 通过在多个矫直工位中的每一个处对一个工件施加一系列矫直行程来抵消变形,直到所测量的变形瞬间值落入预定的变形公差内,自动矫直细长和至少部分旋转对称的工件的方法和装置 。 矫直行程的深度由变形的测量瞬时值与变形的最大值和最小值的平均值之间的差确定。

    Bending machine for rods, wires and other elongated articles of steel, etc.
    49.
    发明授权
    Bending machine for rods, wires and other elongated articles of steel, etc. 失效
    棒材,电线等细长钢筋弯曲机等

    公开(公告)号:US3895509A

    公开(公告)日:1975-07-22

    申请号:US36184973

    申请日:1973-05-18

    CPC classification number: B21D7/12 G05B19/108 Y10S72/702

    Abstract: A bending machine for elongated articles in which a rotatable bending platen supports bending tools, adjustable setting means control the rotation of the bending platen through predetermined principal bending angles, with an electrically operated control system continuining any bending operation through a predetermined supplementary angle after bending through the principal angle has been accomplished. An adjustable delay device is operably associated with each principal bending angle and is arranged to coact with a motor for driving the bending platen so that the motor remains activated for a further period of time after a given principal bending has been reached for effecting bending through the supplementary bending angle.

    Abstract translation: 一种用于细长制品的弯曲机,其中可旋转的弯曲压板支撑弯曲工具,可调整的设定装置通过预定的主弯曲角度控制弯曲压板的旋转,电动控制系统在弯曲后通过预定的辅助角度延续任何弯曲操作 主角已经完成。 可调延迟装置与每个主弯曲角度可操作地相关联并且被布置成与用于驱动弯曲压板的电动机共同作用,使得在达到给定的主弯曲之后电动机保持激活一段时间以便通过 辅助弯角。

    Method and apparatus for automatically compensated tube bending
    50.
    发明授权
    Method and apparatus for automatically compensated tube bending 失效
    自动补偿管弯曲的方法和装置

    公开(公告)号:US3821525A

    公开(公告)日:1974-06-28

    申请号:US23528372

    申请日:1972-03-16

    Applicant: CONRAC CORP

    Inventor: EATON H SHEVELL W

    CPC classification number: G05B19/188 B21D7/12 G05B2219/45143 Y10S72/702

    Abstract: Method and apparatus for automatically compensating specified tube bend data for angular, fixed and radial springback to generate commanded machine axis motions which will result in the specified bent tube. For a given tube material and bending machine configuration, a calibration run is performed with a test tube and, thereafter, for that material and machine configuration, a tube of any shape can be produced from the specified bend data alone. Bends of radius greater than the machine bend die radius can be produced by automatically calculating and executing the axis commands for a series of incremental bends. The system incorporates a control sequence using operator response to machine generated questions and statements as well as general input and output capabilities.

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