JPS63101180U

JPS63101180U -

Info

Publication number: JPS63101180U
Application number: JP19680986U
Authority: JP
Priority date: 1986-12-23
Filing date: 1986-12-23
Publication date: 1988-07-01
Also published as: JPH0335496Y2

Description

[Brief explanation of drawings]

第１Ａ図乃至第１Ｃ図は本考案の実施例に係る
電極保持機構を示し、第１Ａ図は全体斜視図、第
１Ｂ図は正面断面図、第１Ｃ図は電極の挿入前後
の状態を示す第１Ｂ図の作用説明図、第２図は前
記電極保持機構を装着したプラズマトーチの断面
図、第３図は従来公知のプラズマトーチの断面図
を示す。４：トーチ本体、２：ノズル、３：棒状電極、
１０：ガイド体、１１：軸孔、１２：開口窓部、
１３：移動体、１４：弾性体。 1A to 1C show an electrode holding mechanism according to an embodiment of the present invention, FIG. 1A is an overall perspective view, FIG. 1B is a front sectional view, and FIG. 1C is a diagram showing the state before and after insertion of the electrode. 1B is an explanatory view of the operation, FIG. 2 is a sectional view of a plasma torch equipped with the electrode holding mechanism, and FIG. 3 is a sectional view of a conventionally known plasma torch. 4: Torch body, 2: Nozzle, 3: Rod-shaped electrode,
10: Guide body, 11: Shaft hole, 12: Opening window,
13: Moving body, 14: Elastic body.

Claims

[Claims for Utility Model Registration] (1) In an electrode holding mechanism for a plasma torch that holds a rod-shaped electrode movably along the nozzle axis, the rod-shaped electrode is detachably mounted inside the torch body and A guide body with a shaft hole of approximately the same diameter as the diameter, an opening window opened midway through the guide body to expose the shaft hole, and an opening that is movable only in a direction perpendicular to the axis of the shaft hole. It has a movable body housed in the window and an elastic body that elastically holds the movable body within the open window, and the rod-shaped electrode penetrated through the shaft hole is moved by the elastic biasing force of the movable body. An electrode holding mechanism for a plasma torch characterized by being configured to be pressed and held against the wall surface of a shaft hole. (2) An opening window is provided between a pair of arc-shaped restriction parts formed integrally with the guide body so as to face the shaft hole, and movement is possible only in the direction perpendicular to the axis of the shaft hole within the opening window. An electrode holding mechanism for a plasma torch according to claim 1, wherein the moving body is accommodated and the moving body is clamped by an annular spring provided in the arcuate restriction portion. . (3) The movable body is an eccentric guide having an eccentric hole having the same diameter as the shaft hole and slightly eccentric with respect to the shaft hole axis, and a rod-shaped electrode that is penetrated into the shaft hole using the eccentric hole. An electrode holding mechanism for a plasma torch according to claim 1, wherein the electrode holding mechanism is configured such that it can be pressed from the side.