发明名称 |
Motor-driven X-type resistance spot welding gun |
摘要 |
A motor-driven X-type resistance spot welding gun. A servo-controlled motor torque is converted into force to drive gun arms and into electrode force by using a reduction gear without converting rotational output of the motor into rectilinear motion. The two arms are respectively attached to an output shaft of the reduction gear or a case, and the rotational output of the motor can be converted into swing-wise movement to close and open the arms. The electrode tips on the arms nip a workpiece to apply electrode force to the workpiece, and current is passed through the workpiece to perform spot welding. A motor, a reduction gear and the like are assembled on a common base to form a driving unit so that an arm actuator for the X-type resistance spot welding gun is formed. The same driving unit can be used commonly to various X-type gun models. The independent properties of functions of a bracket for attaching the welding gun to a robot are improved. Since properties of the arm actuator and the bracket are not dependent on a welding unit of the gun (portion through which welding current flows), the production cost for a manufacturer and maintenance cost for a user are reduced.
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申请公布号 |
US5750953(A) |
申请公布日期 |
1998.05.12 |
申请号 |
US19960701953 |
申请日期 |
1996.08.23 |
申请人 |
DENGENSHA MANUFACTURING COMPANY LIMITED |
发明人 |
SATO, YOSHIO;KAMETA, KEIJI |
分类号 |
B23K11/11;B23K11/00;B23K11/31;(IPC1-7):B23K11/00 |
主分类号 |
B23K11/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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