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    • 4. 发明申请
    • Pressure application driving unit of welding gun
    • 焊枪压力驱动单元
    • US20090100950A1
    • 2009-04-23
    • US11975513
    • 2007-10-19
    • Yoshio Sato
    • Yoshio Sato
    • B23K11/31
    • B23K11/315Y10T74/18656
    • The invention provides a pressure application driving unit of a welding gun that is safe, low in manufacturing cost, and compact as a whole by employing a hollow rotary shaft of the ordinary motor as it is and fixing a screw shaft fixing member to an end face of the rotary shaft, thereby reciprocating a pressure application shaft by the rotation of a screw shaft. The pressure application driving unit of a welding gun comprises a hollow through hole formed in a rotary shaft of a motor, a pressure application shaft having a portion pulled in the hollow through hole of the motor via a screw shaft to be driven by the motor, a hole for housing a tip end side of the screw shaft formed on the center portion of the pressure application shaft in the axial direction of the pressure application shaft, a nut at the end side of the pressure application shaft and a screw of the screw shaft are threaded with each other, the pressure application shaft side being nonrotatable, and a space formed in the hollow through hole and capable of housing the nut that is threaded with the screw shaft, wherein a screw shaft fixing member is fixed to tap holes formed on an end face of the rotary shaft of the motor and the screw shaft is fixed in the screw shaft fixing member.
    • 本发明提供了一种焊枪的压力施加驱动单元,其安全性低,制造成本低,并且通过采用普通电机的中空旋转轴将其整体紧凑化并将螺钉轴固定构件固定到端面 由此通过螺杆轴的旋转使压力施加轴往复运动。 焊枪的压力施加驱动单元包括形成在电动机的旋转轴中的中空通孔,压力施加轴,其具有经由电动机驱动的螺杆轴在电动机的中空通孔中拉动的部分, 用于容纳形成在加压轴的中心部分上的螺杆轴的前端侧的孔,在加压轴的轴向方向上的螺母,以及螺杆轴的螺钉 彼此螺纹连接,压力施加轴侧不可旋转,并且形成在中空通孔中的空间,并且能够容纳与螺纹轴螺纹连接的螺母,其中螺钉轴固定构件固定到形成在 电动机的旋转轴的端面和螺杆轴被固定在螺钉轴固定构件中。
    • 5. 发明授权
    • Friction stir spot joining device
    • 摩擦搅拌点接合装置
    • US07322509B2
    • 2008-01-29
    • US11037809
    • 2005-01-18
    • Yoshio Sato
    • Yoshio Sato
    • B23K20/12
    • B23K20/1265B23K20/125Y10T74/18664
    • There is provided a friction stir spot joining device to eliminate the generation of tipping torque caused by a pressing force by allowing the axis of a ball screw for generating the pressing force and the center of a shaft of a stirring motor to be coincident with each other, thereby allowing the device to be downsized and the device to effect joining operation with ease. The friction stir spot joining device comprises a ball nut fixed to the rear end side the stirring motor, a hole is defined in an output shaft of the stirring motor in which the ball screw is housed from a rear portion of the hole so as to be positioned in the hole, wherein a rotating force of the pressing motor is transmitted to the ball screw and the stirring motor is moved forward and backward by the ball nut threaded with the ball screw.
    • 提供了一种摩擦搅拌点接合装置,以通过使滚珠丝杠的轴线产生压力并使搅拌马达的轴的中心彼此一致来消除由压力产生的倾翻力矩的产生 从而允许设备小型化,并且该设备容易地进行连接操作。 摩擦搅拌点接合装置包括固定在搅拌马达的后端侧的滚珠螺母,在搅拌马达的输出轴中限定有孔,其中滚珠丝杠从孔的后部容纳在其中,以便是 定位在孔中,其中按压电动机的旋转力传递到滚珠丝杠,并且搅拌马达通过与滚珠丝杠螺纹连接的滚珠螺母前后移动。
    • 8. 发明授权
    • Motor-driven resistance spot welding machine
    • 电机电阻点焊机
    • US5928531A
    • 1999-07-27
    • US928483
    • 1997-09-12
    • Yoshio SatoJunichi TaniguchiKeiji Kameta
    • Yoshio SatoJunichi TaniguchiKeiji Kameta
    • B23K11/31B23K11/11
    • B23K11/315B23K11/115B23K11/311
    • A motor-driven resistance spot welding machine includes: a drive rod having an electrode tip on an end thereof and making a linear motion; a linear guide for guiding the linear motion of the drive rod, the linear guide including a bearing; and a reduction gear being supported by a gun arm or a gun bracket. The machine also linearly drives the drive rod in an electrode force direction by transmitting an output torque of an electric motor to the reduction gear. In the machine, a rear portion of the drive rod is connected to a swing lever through a link, the swing lever being secured either to an output shaft of the reduction gear or to a main body of the reduction gear, whereby an arcuate motion is transmitted to the swing lever by an output of the electric motor, and is then converted into a linear motion of the drive rod by the link to thereby drive the drive rod so as to apply electrode force. As a result of this construction, the reduction gear is sealed, so that the reduction gear is free from welding splashes. Such problems as the large moment of inertia (GD.sup.2) and the restricted strokes of the ball-bearing leadscrew and the nut can be overcome. Further, gun parts are grouped by function. That is, the functions are unitized into a drive unit for generating electrode force, and a welding unit including the electrode tips, the gun arm, the welding transformer, and the like, so that parts are unitized into common parts so as to be standardized. Further, a new bracket which can be used irrespective of the posture of the gun attached to the robot can be realized.
    • 电动电阻点焊机包括:驱动杆,其端部具有电极末端并进行直线运动; 用于引导所述驱动杆的直线运动的线性引导件,所述线性引导件包括轴承; 减速机由枪臂或枪架支撑。 该机器还通过将电动机的输出扭矩传递到减速齿轮来以电极力方向线性地驱动驱动杆。 在机器中,驱动杆的后部通过连杆与摇摆杆连接,摆动杆固定在减速齿轮的输出轴上或固定在减速齿轮的主体上,由此弓形运动是 通过电动机的输出传递到摆动杆,然后通过连杆转换成驱动杆的直线运动,从而驱动驱动杆以施加电极力。 作为这种结构的结果,减速齿轮被密封,使得减速齿轮没有焊接飞溅。 可以克服诸如大惯性矩(GD2)和滚珠轴承丝杠和螺母的限制冲程等问题。 此外,枪部件按功能分组。 也就是说,功能被组合成用于产生电极力的驱动单元,以及包括电极尖端,枪臂,焊接变压器等的焊接单元,使得部件被组合成公共部分,以便被标准化 。 此外,可以实现能够使用与支撑机器人的枪的姿势无关的新的支架。