Light-controlled safety switch for a punch press
    1.
    发明授权
    Light-controlled safety switch for a punch press 有权
    用于冲压机的轻型安全开关

    公开(公告)号:US6114690A

    公开(公告)日:2000-09-05

    申请号:US165100

    申请日:1998-10-02

    摘要: A light-controlled safety switch for an automated press includes an optical transmitter and receiver affixed to the press frame just above the press ram that redirects the light beam from vertical to horizontal. A light beam is directed downward from the transmitter to a 45-degree reflective surface on the ram. A cross-hole, perpendicular to the centerline of the ram, and a second 45-degree opposite-facing reflector opposite to the first reflective surface returns the light beam to the receiver. Thus, an optical path is achieved from the transmitter to the first reflector, through the ram, to the second reflector and then back up to the receiver. The opposing 45-degree reflectors are preferably provided by a 45-degree dished collar with a light-reflective interfacing surface fitted about the ram. The collar, and thus the reflective surfaces, stroke up and down with the movement of the ram, but maintains the optical path from the transmitter to the receiver because the send and receive light paths are parallel to the linear motion of the ram. A light-blocking shutter is connected to the top of a slidable punch holder assembly that breaks the horizontal light beam through the ram centerline whenever the punch contacts an object. Thus, the present optical system replaces the hard-wired punch contact safety switch of the prior art and its external wiring, thereby providing many advantages.

    摘要翻译: 用于自动压力机的光控安全开关包括固定到压机框架上方的压机框架上的光发射器和接收器,其将光束从垂直方向重定向到水平。 光束从发射器向下定向到冲头上的45度反射表面。 垂直于冲头的中心线的十字孔和与第一反射表面相对的第二45度相对面的反射器将光束返回到接收器。 因此,从发射器到第一反射器,通过压头,到第二反射器,然后返回接收器,实现光路。 相对的45度反射器优选地由具有围绕压头安装的光反射接口表面的45度碟形环提供。 由于发射和接收光路平行于柱塞的直线运动,轴环和反射表面随着压头的运动而上下移动,而是保持从发射器到接收器的光路。 遮光挡板连接到可滑动的冲头保持器组件的顶部,每当冲头接触到物体时,其将水平光束穿过冲头中心线。 因此,本光学系统代替了现有技术的硬接线冲头接触安全开关及其外部布线,从而提供了许多优点。

    Clinch-type lock nut installation and formation process
    2.
    发明授权
    Clinch-type lock nut installation and formation process 失效
    钳型锁紧螺母的安装和形成过程

    公开(公告)号:US5713116A

    公开(公告)日:1998-02-03

    申请号:US502156

    申请日:1995-07-13

    摘要: A two-tiered punch having an extending imprint head with impact surfaces is employed to deform the top threads of a clinch-type nut during installation to create a lock-type nut. As the deforming imprint is applied, a shoulder on the punch supplies the installation pressing force against the top face of the nut. As the imprint head moves downward into the material of the nut, portions of the top thread are deformed, being compressed axially downward. The size of the imprint head and the distance that the imprint head projects from the shoulder determines the depth of imprint deformation and, hence, the degree of thread deformation. The imprint head is centered on the nut thread and is configured in the shape of a polygon extending from the face of the punch. During deformation and installation, the nut is held in a center position with regard to the coining edges of the imprint head by a centering pin which extends from the end face of the punch. The distortion of the threads provides the desired prevailing torque against a thread-in bolt.

    摘要翻译: 使用具有带冲击表面的延伸压印头的双层冲头在安装期间使夹紧螺母的顶部螺纹变形以形成锁定型螺母。 当施加变形印记时,冲头上的肩部提供抵靠螺母顶面的安装压力。 当压印头向下移动到螺母的材料中时,顶线的部分变形,被轴向向下压缩。 压印头的尺寸和压印头从肩部突出的距离决定了压痕变形的深度,因此确定了螺纹变形的程度。 压印头位于螺母螺纹的中心并且被构造成从冲头的表面延伸的多边形的形状。 在变形和安装过程中,螺母通过从冲头的端面延伸的定心销而相对于压印头的压边保持在中心位置。 螺纹的变形提供了针对螺纹螺栓所需的主要扭矩。

    Molded stand-off
    3.
    发明授权
    Molded stand-off 失效
    模制对立

    公开(公告)号:US4130138A

    公开(公告)日:1978-12-19

    申请号:US802116

    申请日:1977-05-31

    IPC分类号: F16B9/00 F16B37/04

    摘要: A self-clinching stand-off to be embedded into thin sheeted material. The stand-off comprises a base produced on a "screw machine" and an extension molded thereto. The extension is formed from a material which is softer than that of the base. Further, the extension may vary in length for a given base.

    摘要翻译: 一种嵌入薄片材料的自锁式支架。 支架包括在“螺丝机”上制造的基座和模制在其上的延伸部。 延伸部由比基部的材质柔软的材料形成。 此外,对于给定的基座,延伸部的长度可以变化。

    Cam-actuated thread tapper
    4.
    发明授权
    Cam-actuated thread tapper 失效
    凸轮驱动螺纹塞

    公开(公告)号:US5165828A

    公开(公告)日:1992-11-24

    申请号:US743701

    申请日:1991-08-12

    IPC分类号: G05B19/18

    摘要: An electronic thread tapper includes a cam-operated feed mechanism which drives the tap carriage rigidly in the advance direction only. Separate force means are employed to move the carriage in the retract direction when the tap is being withdrawn from the work material. Spindle and feed motors operate separately, but are cycle-coordinated during a dwell period between tapping strokes. By measuring any position error developed between the spindle and feed positions, a fault condition, such as a worn tap, a workpiece material defect, or an obstruction in the machine can be sensitively detected.

    摘要翻译: 电子螺纹塞子包括一个凸轮操作进给机构,其仅在前进方向上刚性驱动龙头托架。 当水龙头从工作材料中取出时,分离力装置用于沿收回方向移动托架。 主轴和进给电机单独运行,但在敲击行程之间的停留期间是循环协调的。 通过测量在主轴和进给位置之间产生的任何位置误差,可以敏感地检测故障状况,例如磨损的攻丝,工件材料缺陷或机器中的障碍物。

    Electrical connector panel fastener
    7.
    发明授权
    Electrical connector panel fastener 失效
    电连接器面板紧固件

    公开(公告)号:US5306175A

    公开(公告)日:1994-04-26

    申请号:US51337

    申请日:1993-04-23

    IPC分类号: H01R13/621 H01R13/627

    CPC分类号: H01R13/6215

    摘要: An improved electrical connector panel standoff fastener includes a panel-mounted stud with an affixed cap nut which is captive within the cable end connector shell. The stud includes a knurled head which is pressed into the chassis panel from the inside out. The stud includes a knurled head sized so that excessive bulging of the panel cutout does not occur upon pressing the stud into the panel. The desired standoff height is maintained by an end wall within the cap nut which acts as a screw stop. Also, the stud may be internally threaded to receive a screw from the opposite side of the panel to fasten the connector receptacle to the panel. The invention may further include a locking device such as a plug inserted into the threads of the stud.

    摘要翻译: 改进的电连接器面板支座紧固件包括面板安装的螺柱,其具有固定的盖螺母,该固定的螺帽固定在电缆端连接器外壳内。 螺柱包括从内侧压入底盘面板的滚花头部。 螺柱包括滚花头,其尺寸使得当将螺柱压入面板时不会发生面板切口的过度膨胀。 所需的间隔高度由作为螺旋止动件的盖螺母内的端壁保持。 此外,螺柱可以是内螺纹以从面板的相对侧接收螺钉,以将连接器插座固定到面板上。 本发明还可以包括锁定装置,例如插入螺柱的螺纹中的插头。

    Progressively-formed clinch nut
    8.
    发明授权
    Progressively-formed clinch nut 失效
    逐渐形成的紧固螺母

    公开(公告)号:US06439819B2

    公开(公告)日:2002-08-27

    申请号:US09864405

    申请日:2001-05-25

    IPC分类号: F16B3704

    CPC分类号: F16B37/068 F16B37/02

    摘要: A three-sided, progressively-formed threaded fastener is comprised of a plurality of planar longitudinal faces intersecting at comer areas. Shank tabs extend downward from the bottom of each of the faces at the base of the fastener. Threaded regions along the inside surface of the planar faces are coined indentations applied during the formation of the fastener. A plurality of wedge-shaped protrusions extend downward from the comer areas at the base of the fastener. The combination of shank tabs and wedge-shaped protrusions form a clinch profile along the bottom of the fastener so that it may can be affixed to a sheet of metal by clinch fit.

    摘要翻译: 三面逐渐形成的螺纹紧固件包括与拐角区域相交的多个平面纵向面。 柄片从紧固件底部的每个面的底部向下延伸。 沿着平面的内表面的螺纹区域是在紧固件形成期间施加的造型压痕。 多个楔形突起从紧固件的基部处的拐角区域向下延伸。 柄突片和楔形突起的组合沿紧固件的底部形成紧固件轮廓,使得其可以通过紧固配合固定到金属片上。

    Progressively-formed threaded insert
    9.
    发明授权
    Progressively-formed threaded insert 失效
    逐渐形成的螺纹插件

    公开(公告)号:US5927920A

    公开(公告)日:1999-07-27

    申请号:US162989

    申请日:1998-09-30

    CPC分类号: F16B37/122 F16B37/02

    摘要: An insert for plastic sections is manufactured from a flat strip of metal by high-speed progressive die-stamping which forms the strip into a threaded female insert. The metal strip is first cut into a flat blank and then thread regions are impressed on the face of the strip, providing a thread pitch profile. During the stamping operation, the strip is folded to form a triangular hollow tube with sharp-edged protrusions extending radially outward from each corner of the triangle. A tab and interlocking cutout secure the abuting longitudinal side edges of the strip and ensures axial alignment of the thread regions. As a result of the folding and stamping process, the thread regions lie along the interior wall of the tubular construction and define a thread pitch diameter which will accept the screw threaded into the center of the insert. The resulting triangular insert is sized so that a diameter describing the outside corners of the insert is equal to or slightly larger than the diameter of the intended receiving hole, while the barbs extend to a greater diameter than the hole. A closure may be included at the bottom of the insert to provide surrounding material from entering the insert channel as the insert is installed.

    摘要翻译: 用于塑料部件的插入件通过高速渐进式冲压从金属板形成,其将带材形成为螺纹母插入件。 首先将金属条切割​​成扁平坯料,然后将螺纹区域印在条带的表面上,从而提供螺距分布。 在冲压操作期间,条带被折叠以形成具有从三角形的每个角部径向向外延伸的尖锐突起的三角形中空管。 翼片和互锁切口固定条带的朝向纵向侧边缘,并确保螺纹区域的轴向对准。 作为折叠和冲压过程的结果,螺纹区域沿着管状结构的内壁并且限定螺纹节圆直径,其将接纳拧入插入件的中心的螺纹。 所得到的三角形插入物的尺寸使得描述插入件的外角的直径等于或略大于预期的接收孔的直径,而倒钩延伸到比孔更大的直径。 在插入件的底部可以包括封闭件,以在安装插入件时提供围绕材料进入插入通道。

    Shrouded captive screw
    10.
    发明授权
    Shrouded captive screw 失效
    有护圈的螺丝

    公开(公告)号:US5338139A

    公开(公告)日:1994-08-16

    申请号:US138090

    申请日:1993-10-20

    摘要: A panel fastener includes a smooth-surface cylindrical shroud encompassing the periphery of the screw head. The shroud is freely rotatable about the shank of the screw and has sides extending down around the barrel which is affixed to a panel. The shroud is fitted to the screw by an internal flange which is yieldably held between the underside of the screw head and the end of a spring. The top edge of the protective shroud does not extend above the head of the screw. The components are dimensioned so that the sides of the shroud are held away from the top side of the panel when the screw is fully compressed. The fastener may be press-fit into a panel as an assembled unit by applying ram pressure to the top of the screw assembly and barrel.

    摘要翻译: 面板紧固件包括围绕螺钉头的周边的平滑的圆柱形护罩。 护罩可以围绕螺钉的柄部自由旋转,并且具有围绕套筒向下延伸的侧面,其固定到面板上。 护罩通过内部凸缘装配到螺钉上,内部凸缘可靠地保持在螺钉头的下侧和弹簧的端部之间。 保护罩的顶部边缘不会延伸到螺丝头部的上方。 这些部件的尺寸使得当螺钉被完全压缩时,护罩的侧面被保持远离面板的顶侧。 紧固件可以通过将压头压力施加到螺钉组件和筒体的顶部而作为组装单元压配合到面板中。