JPH01100678U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の溶接ガンの一実施例を従来
のＣ形ガンと同様の機能を有するように変形させ
て示す正面図、第２図は第１図に示す溶接ガンを
矢印方向から見た矢視図、第３図は第１図に示
す溶接ガンの一部を変形途中の状態で第２図の
―線に沿う断面にて示す縦断面図、第４図は第
１図に示す溶接ガンを従来のＸ形ガンと同様の機
能を有するように変形させて示す正面図である。 １，２……電極チツプ、３，４……アーム、５
……ブラケツト、１２，１３……アームスライド
機構、１７，１８，２２，２３……エアシリンダ
、２４，２５……ワーク。 Fig. 1 is a front view showing an embodiment of the welding gun of this invention modified to have the same function as a conventional C-type gun, and Fig. 2 is a view of the welding gun shown in Fig. 1 from the direction of the arrow. Fig. 3 is a vertical cross-sectional view taken along line - in Fig. 2 of a part of the welding gun shown in Fig. 1 in the middle of deformation, and Fig. 4 is shown in Fig. 1. FIG. 2 is a front view showing a welding gun modified so as to have the same function as a conventional X-shaped gun. 1, 2... Electrode chip, 3, 4... Arm, 5
... Bracket, 12, 13 ... Arm slide mechanism, 17, 18, 22, 23 ... Air cylinder, 24, 25 ... Work.

Claims (1)

【実用新案登録請求の範囲】 互いに対をなすスポツト溶接用の第１電極１お
よび第２電極２と、 前記第１電極を先端部にて揺動可能に枢支する
第１腕部材３と、 前記第１腕部材より長く、その第１腕部材に沿
つて配置され、先端部が第１腕部材の方へ向つて
突出し、その先端部にて前記第２電極を揺動可能
に枢支する第２腕部材４と、 当該溶接ガンの支持のための支持部材５と、 前記第１腕部材を前記第２腕部材に対し、その
第２腕部材の先端部が突出する側で進退移動可能
に前記支持部材に支持する第１案内手段１２と、 前記第２腕部材を前記第１腕部材に沿つて進退
移動可能に前記支持部材に支持する第２案内手段
１３と、 前記第１電極を、前記第２腕部材の進退移動方
向と実質的に同方向で前記第２腕部材の先端部に
対向する方向へ先端が向く第１姿勢と、前記第１
腕部材の進退移動方向と実質的に同方向で前記第
２腕部材に対向する方向へ先端が向く第２姿勢と
の間で揺動させる第１揺動駆動手段１７と、 前記第２電極を、前記第２腕部材の進退移動方
向と実質的に同方向で前記第１腕部材に対向する
方向へ先端が向く第１姿勢と、前記第１腕部材の
進退移動方向と実質的に同方向で前記第１腕部材
に対向する方向へ先端が向く第２姿勢との間で揺
動させる第２揺動駆動手段１８と、 前記第１腕部材を、その先端部が前記第２腕部
材の先端部にその第２腕部材の進退移動方向へ実
質的に整列する前進限位置と、その先端部がそこ
と後退限位置に位置する前記第２腕部材の先端部
との間に前記第１および第２電極と、接合するワ
ーク２５とが介在し得る距離だけ少なくとも前記
第２腕部材の先端部から離間する後退限位置との
間で進退移動させる第１進退駆動手段１９と、 前記第２腕部材を、その先端部がそこと前進限
位置に位置する前記第１腕部材の先端部との間に
、前記第１および第２電極と、接合するワーク２
４とが介在し得る距離だけ少なくとも前記第１腕
部材の先端部から離間する前進限位置と、その先
端部が前記第１腕部材の先端部にその第１腕部材
の進退移動方向へ実質的に整列する後退限位置と
の間で進退移動させる第２進退駆動手段２０とを
具えてなる溶接ガン。[Claims for Utility Model Registration] A first electrode 1 and a second electrode 2 for spot welding that form a pair with each other; a first arm member 3 that pivotably supports the first electrode at its tip; It is longer than the first arm member, is arranged along the first arm member, has a distal end protruding toward the first arm member, and pivotably supports the second electrode at the distal end. a second arm member 4; a support member 5 for supporting the welding gun; and the first arm member is movable forward and backward relative to the second arm member on the side where the tip of the second arm member protrudes. a first guide means 12 that supports the second arm member on the support member; a second guide means 13 that supports the second arm member on the support member such that the second arm member can move forward and backward along the first arm member; , a first posture in which the tip of the second arm member faces in a direction opposite to the tip of the second arm member in substantially the same direction as the forward and backward movement direction of the second arm member;
a first swing drive means 17 for swinging the second electrode between a second posture in which the tip thereof faces in a direction opposite to the second arm member in substantially the same direction as the forward and backward movement direction of the arm member; , a first posture in which the tip of the second arm member faces the first arm member in a direction substantially the same as the direction in which the second arm member moves forward and backward; a second swing driving means 18 for swinging the first arm member between a second posture in which the distal end thereof faces in a direction opposite to the first arm member; The first arm member is located between a forward end position substantially aligned with the forward and backward movement direction of the second arm member at the forward end and a forward end position of the second arm member at which the forward end is located at the backward end position. and a first forward/backward drive means 19 for moving the second electrode back and forth between a backward limit position that is spaced from the distal end of the second arm member by a distance that allows the second electrode and the workpiece 25 to be joined to interpose therebetween; A workpiece 2 in which an arm member is joined to the first and second electrodes between the arm member and the distal end portion of the first arm member located at the forward movement limit position.
a forward movement limit position that is spaced apart from the distal end of the first arm member by at least a distance that allows interposition of the first arm member; A welding gun comprising a second forward/backward drive means 20 for moving forward and backward between a backward limit position aligned with the rearward limit position.