JP2006205208A - Spot welding electrode device - Google Patents

Spot welding electrode device Download PDF

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Publication number
JP2006205208A
JP2006205208A JP2005020459A JP2005020459A JP2006205208A JP 2006205208 A JP2006205208 A JP 2006205208A JP 2005020459 A JP2005020459 A JP 2005020459A JP 2005020459 A JP2005020459 A JP 2005020459A JP 2006205208 A JP2006205208 A JP 2006205208A
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Japan
Prior art keywords
tip
spot welding
shaft member
workpiece
inclined surface
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JP2005020459A
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Japanese (ja)
Inventor
Kenji Sawada
健二 沢田
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Kanto Jidosha Kogyo KK
Toyota Motor East Japan Inc
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Kanto Jidosha Kogyo KK
Kanto Auto Works Ltd
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Application filed by Kanto Jidosha Kogyo KK, Kanto Auto Works Ltd filed Critical Kanto Jidosha Kogyo KK
Priority to JP2005020459A priority Critical patent/JP2006205208A/en
Publication of JP2006205208A publication Critical patent/JP2006205208A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a spot welding electrode device that automatically adjusts and corrects wear of the receiving end electrode tip for performing spot welding and that makes series spot welding possible without deforming a workpiece of a hat-shaped cross section. <P>SOLUTION: The device is equipped with: a trapezoidal and tubular tip guide 2 fixedly installed on a fixed base 3; a tip 7 provided on the slope 4 of the tip guide 2 in a manner movable forward and backward in the axial direction orthogonal to the slope 4; an actuating shaft member 8 vertically movably inserted in the tube of the tip guide 2 and intended to actuate the tip 7 forward and backward; and an actuator 11 for vertically controlling this actuating shaft member 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ハット断面形状のワークをスポット溶接するための受け側電極チップの位置を可変制御可能としたスポット溶接電極装置に関するものである。   The present invention relates to a spot welding electrode device that can variably control the position of a receiving electrode tip for spot welding a workpiece having a hat cross-sectional shape.

スポット溶接の受け側電極チップの位置を可変制御可能とした技術は、例えば、特開平10−6032公報で開示されている。このものは電極の位置をシリンダによって上下軸線方向に制御する技術であり、図3で示すような第1のワークW1にハット断面形状の第2ワークW2をスポット溶接することはできない。   For example, Japanese Patent Laid-Open No. 10-6032 discloses a technique that enables variable control of the position of the receiving electrode tip for spot welding. This is a technique for controlling the position of the electrode in the vertical axis direction by a cylinder, and the second workpiece W2 having a hat cross section cannot be spot welded to the first workpiece W1 as shown in FIG.

上記図3で示すような第1のワークW1にハット断面形状の第2ワークW2をスポット溶接するには、台形のベース12の傾斜面にチップ13を埋め込み、スポット溶接ガン14によりスポット溶接している。   In order to spot weld the second workpiece W2 having the hat cross-sectional shape to the first workpiece W1 as shown in FIG. 3, the tip 13 is embedded in the inclined surface of the trapezoidal base 12, and spot welding is performed by the spot welding gun 14. Yes.

図3で示すようなスポット溶接電極では、チップ13の摩耗によりワークとに隙間ができてスポット溶接後の組み付け精度のバラツキが生じる。また、ハット断面の第2ワークW2のサイズが変化した場合には、変化した断面形状に対応したスポット溶接電極を使用する必要があり、断面形状が変化しても同一のスポット溶接電極でシリーズスポット溶接することができないという問題がある。
特開平10−6032公報 特開2003−19571公報
In the spot welding electrode as shown in FIG. 3, there is a gap between the workpiece due to wear of the tip 13, and the assembling accuracy after spot welding varies. In addition, when the size of the second workpiece W2 in the hat cross section changes, it is necessary to use a spot welding electrode corresponding to the changed cross sectional shape. There is a problem that it cannot be welded.
Japanese Patent Laid-Open No. 10-6032 JP 2003-19571 A

本発明の目的は、スポット溶接するための受け側電極チップの摩耗を自動調節して補正し、またハット断面形状のワークを変形させることなくシリーズスポット溶接を可能としたスポット溶接電極装置を提供することである。   An object of the present invention is to provide a spot welding electrode device that automatically adjusts and corrects wear of a receiving electrode tip for spot welding and enables series spot welding without deforming a work having a hat cross-sectional shape. That is.

上記の目的を達成するための本発明は、請求項1に記載の通り、ハット断面形状のワークをスポット溶接するための受け側電極装置であって、固定ベース上に固設された台形で筒状のチップガイドと、前記チップガイドの傾斜面に、この傾斜面と直交する軸線方向に進退移動可能に設けたチップと、前記チップガイドの筒内に昇降動可能に挿入され前記チップを進退作動するための作動軸部材と、この作動軸部材を昇降動制御するためのアクチュエータとを備えたことを特徴とするものである。   In order to achieve the above object, according to the present invention, there is provided a receiving-side electrode device for spot welding a work having a hat cross-sectional shape, wherein the trapezoidal cylinder is fixed on a fixed base. Shaped tip guide, a tip provided on the inclined surface of the tip guide so as to be movable back and forth in an axial direction perpendicular to the inclined surface, and inserted into the cylinder of the tip guide so as to be movable up and down. And an actuator for controlling the up-and-down movement of the operating shaft member.

本発明によると、チップガイドの傾斜面に設けたチップを作動軸部材によってチップガイドの傾斜面と直交する軸線方向に進退移動可能にしたことにより、チップの摩耗では前進移動して適正位置に補正してワークとチップとの間に隙間をなくし、スポット溶接後の組み付け精度を向上するとともに、ハット断面形状のワークの変化では、変化したワークに対応するようチップの位置を進退移動してワーク断面形状を変化させることなく同一のスポット溶接電極でシリーズスポット溶接を可能にした効果を有している。   According to the present invention, the tip provided on the inclined surface of the tip guide can be moved forward and backward in the axial direction perpendicular to the inclined surface of the tip guide by the operating shaft member, so that the tip moves forward and is corrected to an appropriate position. As a result, the gap between the workpiece and the tip is eliminated to improve the assembly accuracy after spot welding. In addition, when the hat cross-sectional workpiece changes, the tip position moves forward and backward to accommodate the changed workpiece. This has the effect of enabling series spot welding with the same spot welding electrode without changing the shape.

以下本発明を実施するための最良の形態について図面に基づいて説明する。図1において、1は本発明によるハット断面形状のワークをスポット溶接するための受け側電極装置を示す。このスポット溶接電極装置1は、固定ベース3上に固設された台形で筒状のチップガイド2と、前記チップガイド2の傾斜面4に、この傾斜面4と直交する軸線方向に進退移動可能に設けたチップ7と、前記チップガイド2の筒内に昇降動可能に挿入され前記チップ7を進退作動するための作動軸部材8と、この作動軸部材8を昇降動制御するためのアクチュエータ11とを備えた構成である。尚、図1において、W1は第1のワークであり.W2は前記第1のワークW1にスポット溶接するハット断面形状の第2ワークである。   The best mode for carrying out the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a receiving electrode device for spot welding a workpiece having a hat cross-sectional shape according to the present invention. The spot welding electrode device 1 can move back and forth in a trapezoidal cylindrical tip guide 2 fixed on a fixed base 3 and an inclined surface 4 of the tip guide 2 in an axial direction perpendicular to the inclined surface 4. A tip 7 provided on the tip guide 2, an actuating shaft member 8 inserted in the cylinder of the tip guide 2 so as to be movable up and down, and an actuator 11 for controlling the raising and lowering of the working shaft member 8. It is the structure provided with. In FIG. 1, W1 is the first workpiece. W2 is a second workpiece having a hat cross-sectional shape that is spot-welded to the first workpiece W1.

以下さらに詳しく説明する。前記チップ7はチップベース6に埋め込まれており、前記チップガイド2の傾斜面4に明けられた穴5に前記チップベース6を介してチップガイド2の傾斜面4と直交する軸線方向に進退移動可能に設けられている。   This will be described in more detail below. The chip 7 is embedded in the chip base 6, and moves forward and backward in the axial direction perpendicular to the inclined surface 4 of the chip guide 2 through the chip base 6 into the hole 5 formed in the inclined surface 4 of the chip guide 2. It is provided as possible.

前記作動軸部材8はチップガイド2と相似形であり、アクチュエータ11によりチップガイド2の筒内で昇降動するようになっている。例えば、アクチュエータ11は可逆転モータとし、このモータの回転軸にピニオンを設け、作動軸部材8には前記ピニオンと噛み合うラックを設けたロッド10が結合している構造である。   The operating shaft member 8 is similar in shape to the tip guide 2 and is moved up and down within the cylinder of the tip guide 2 by an actuator 11. For example, the actuator 11 is a reversible motor, a pinion is provided on the rotating shaft of the motor, and a rod 10 provided with a rack that meshes with the pinion is coupled to the operating shaft member 8.

前記チップベース6は作動軸部材8の傾斜面に接触し、かつ作動軸部材8の昇降動を許容すべく相対移動可能に係合している。この相対移動可能な係合構造は、作動軸部材8に、その傾斜面に沿って溝8aが切ってあり、この溝8aにチップベース6から突設した係合突起9を相対摺動可能に係合した構造である。   The tip base 6 is in contact with the inclined surface of the operating shaft member 8 and is engaged so as to be relatively movable so as to allow the operating shaft member 8 to move up and down. In this relatively movable engagement structure, a groove 8a is cut along the inclined surface of the operating shaft member 8, and an engagement protrusion 9 protruding from the chip base 6 can be slid relative to the groove 8a. It is an engaged structure.

本発明は上記の通りの構造であるから、アクチュエータ11により作動軸部材8を上昇動させることにより、作動軸部材8の傾斜面に接触しているチップベース6は作動軸部材8の傾斜面で押されてチップガイド2の傾斜面4と直交する軸線方向に前進してチップ7を押し出し位置する。   Since the present invention has the structure as described above, the tip base 6 that is in contact with the inclined surface of the operating shaft member 8 is moved up by the actuator 11 by moving the operating shaft member 8 upward by the actuator 11. The tip 7 is pushed to advance in the axial direction perpendicular to the inclined surface 4 of the tip guide 2 and the tip 7 is pushed out.

また、アクチュエータ11により作動軸部材8を下降動させることにより、チップベース6を作動軸部材8の傾斜面に接触した状態で係合突起9を溝8aで引き込みチップガイド2の傾斜面6と直交する軸線方向に後退してチップ7を引き込み位置する。   Further, by lowering the operating shaft member 8 by the actuator 11, the engaging protrusion 9 is pulled in by the groove 8 a in a state where the tip base 6 is in contact with the inclined surface of the operating shaft member 8, and is orthogonal to the inclined surface 6 of the chip guide 2. The tip 7 is retracted by retreating in the axial direction.

このように、チップ7は作動軸部材8の昇降動によって押し出しあるいは引き込み位置する可変制御可能であるため、チップ7が摩耗したときには作動軸部材8を適当量で上昇させてチップ7を押し出し位置し適正位置に補正する。これにより、チップ7の摩耗によるワークとチップ7との間に隙間をなくし、スポット溶接後の組み付け精度を向上する利点を有する。   Thus, since the tip 7 can be variably controlled to be pushed out or retracted by raising and lowering the operating shaft member 8, when the tip 7 is worn, the operating shaft member 8 is raised by an appropriate amount to push the tip 7 out. Correct to an appropriate position. This eliminates the gap between the workpiece 7 and the tip 7 due to wear of the tip 7 and has the advantage of improving the assembling accuracy after spot welding.

また、ハット断面形状の第2ワークW2のサイズが変化した場合、チップ7の位置を変化したハット断面形状のサイズに対応するよう作動軸部材8を昇降動してチップ7を押し出しあるいは引き込み制御する。これにより、ワーク断面形状を変化させることなく同一のスポット溶接電極でシリーズスポット溶接を可能する利点を有する。   Further, when the size of the second workpiece W2 having the hat cross-sectional shape changes, the operating shaft member 8 is moved up and down to control the push-out or pull-in of the tip 7 so as to correspond to the changed size of the hat cross-sectional shape. . This has the advantage that series spot welding can be performed with the same spot welding electrode without changing the workpiece cross-sectional shape.

尚、作動軸部材8を昇降動させるにはチップとワークの接触を微弱電流で検知しながらアクチュエータ11を駆動してチップの位置を自動調節するものである。   In order to move the operating shaft member 8 up and down, the position of the tip is automatically adjusted by driving the actuator 11 while detecting the contact between the tip and the workpiece with a weak current.

本発明によるスポット溶接電極装置の断面図である。It is sectional drawing of the spot welding electrode apparatus by this invention. 図1のA−A線断面図である。It is the sectional view on the AA line of FIG. 従来一般的に使用されているハット断面形状ワークのスポット溶接用の受け側電極を示す図である。It is a figure which shows the receiving side electrode for the spot welding of the hat cross-section shaped workpiece generally used conventionally.

符号の説明Explanation of symbols

1 スポット溶接電極装置
2 チップガイド
3 固定ベース
4 チップガイドの傾斜面
5 穴
6 チップベース
7 チップ
8 作動軸部材
8a 溝
9 係合突起
10 ロッド
11 アクチュエータ
DESCRIPTION OF SYMBOLS 1 Spot welding electrode apparatus 2 Tip guide 3 Fixed base 4 Tip inclined surface 5 Hole 6 Tip base 7 Tip 8 Actuation shaft member 8a Groove 9 Engagement protrusion 10 Rod 11 Actuator

Claims (1)

ハット断面形状のワークをスポット溶接するための受け側電極装置であって、固定ベース上に固設された台形で筒状のチップガイドと、前記チップガイドの傾斜面に、この傾斜面と直交する軸線方向に進退移動可能に設けたチップと、前記チップガイドの筒内に昇降動可能に挿入され前記チップを進退作動するための作動軸部材と、この作動軸部材を昇降動制御するためのアクチュエータとを備えたことを特徴とするスポット溶接電極装置。   A receiving-side electrode device for spot-welding a work having a hat cross-sectional shape, a trapezoidal and cylindrical tip guide fixed on a fixed base, and an inclined surface of the tip guide orthogonal to the inclined surface A tip provided so as to be movable back and forth in the axial direction, an operating shaft member inserted into the tip guide cylinder so as to be movable up and down, and an actuator for controlling the vertical movement of the operating shaft member And a spot welding electrode device.
JP2005020459A 2005-01-28 2005-01-28 Spot welding electrode device Pending JP2006205208A (en)

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JP2005020459A JP2006205208A (en) 2005-01-28 2005-01-28 Spot welding electrode device

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JP2005020459A JP2006205208A (en) 2005-01-28 2005-01-28 Spot welding electrode device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111715988A (en) * 2020-05-21 2020-09-29 定州之源汽车零部件制造有限公司 Welding process and welding assembly for engine mounting cross beam welding assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111715988A (en) * 2020-05-21 2020-09-29 定州之源汽车零部件制造有限公司 Welding process and welding assembly for engine mounting cross beam welding assembly

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