JP5101517B2 - Sheet metal repair method - Google Patents

Sheet metal repair method Download PDF

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JP5101517B2
JP5101517B2 JP2008542013A JP2008542013A JP5101517B2 JP 5101517 B2 JP5101517 B2 JP 5101517B2 JP 2008542013 A JP2008542013 A JP 2008542013A JP 2008542013 A JP2008542013 A JP 2008542013A JP 5101517 B2 JP5101517 B2 JP 5101517B2
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sheet metal
jig
repair
repairing
pressing
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JPWO2008053639A1 (en
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貞夫 樋上
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Dengen Co Ltd
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Dengen Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06Removing local distortions

Description

本発明は、車両、航空機、船舶、物品の筐体等(以下、車両等という。)を構成する板金(一般鋼板、高張力鋼板、アルミ製板金、ステンレス製板金等)の曲面や平面に生じた歪みの修復を行うための板金修復方法に関する。 The present invention occurs on a curved surface or flat surface of a sheet metal (general steel sheet, high-tensile steel sheet, aluminum sheet metal, stainless steel sheet metal, etc.) constituting a vehicle, an aircraft, a ship, a housing of an article (hereinafter referred to as a vehicle). The present invention relates to a sheet metal repairing method for repairing distortion.

板金の変形を修復する方法として、修復箇所の塗装を剥離し、プーラ等の引出し手段によって前記修復すべき凹んだ箇所を引き上げ概ね平坦とした後に、特にその修復箇所に対して加熱とその後の冷却による収縮を利用して、当該修復箇所の歪みを修復する方法がある。この加熱及び冷却を利用した歪みの修復を行うものとしては、例えば、アセチレンガス等を燃焼して得られる炎を放射してプーラ近傍を加熱した後、冷却を行い、次いで、伸びて歪んでいた引き出し平坦部を、加熱押圧し、水で濡らした布等で加熱部分を急冷することにより縮ませて、修復を行う修復方法(例えば、特許文献1参照。)が公知である。   As a method of repairing the deformation of the sheet metal, the coating of the repaired part is peeled off, the recessed part to be repaired is pulled up by a pulling means such as a puller to make it generally flat, and then the repaired part is heated and then cooled. There is a method of repairing the distortion at the repaired part by using the contraction caused by. As for repairing distortion using this heating and cooling, for example, after heating the vicinity of the puller by radiating a flame obtained by burning acetylene gas or the like, it was cooled and then stretched and distorted. A restoration method (for example, refer to Patent Document 1) is known in which the flat portion of the drawer is heated and pressed to shrink the heated portion with a cloth or the like wetted with water, thereby performing the restoration.

また、車両等の板金の修復加工時に使用するアース手段としては、単一又は数種の電極接続手段を具備した導電性部材からなる柱状基体の中心部縦方向に仮溶着棒用装着孔(中央穴)を貫設し、また該仮溶着棒用装着孔の一端開口部の周囲に複数のアース用接点を突設したアース接続装置と、該アース接続装置の仮溶着棒用装着孔の他端開口部側に貫着固定した絶縁スリーブと、頭部に仮溶接分離手段を具備し圧縮コイルばね及び絶縁スリーブを貫通して仮溶着棒用装着孔の一端開口側へ圧縮コイルばねに抗して突出するように保持させた仮溶着棒とからなり、該仮溶着棒の頭部を電気溶接機の一方の電極先端で押圧してその先端をアース面に仮溶接するとともに、アース用接点をアース面に押圧密着するようにしたことを特徴とする溶接機用アース側接続装置(例えば、特許文献2参照。)が公知である。   In addition, as a grounding means used when repairing a sheet metal of a vehicle or the like, a temporary welding rod mounting hole (center) is formed in the longitudinal direction of the central portion of the columnar base member made of a conductive member having a single or several kinds of electrode connecting means. A ground connection device having a plurality of contact points projecting around one end opening of the temporary welding rod mounting hole, and the other end of the temporary welding rod mounting hole of the ground connection device Insulating sleeve fixed to the opening side, and temporary welding separating means on the head, penetrating the compression coil spring and the insulating sleeve, one end opening side of the temporary welding rod mounting hole against the compression coil spring A temporary welding rod held so as to protrude, the head of the temporary welding rod is pressed with one electrode tip of the electric welding machine, the tip is temporarily welded to the ground surface, and the ground contact is grounded Welding machine characterized by being pressed and adhered to the surface Second connecting terminal device (e.g., see Patent Document 2.) It is known.

特開2005−254315号公報第3頁第5段落第1行乃至第3行Japanese Patent Laying-Open No. 2005-254315, page 3, fifth paragraph, first line to third line 特開平11−33732号公報JP 11-33732 A

上記特許文献1に開示された先行技術に係る発明は、ガスを燃焼させ、その炎を熱源とした加熱手段を用いることから、加熱手段である炎を維持するために常にガスを供給する必要性があった。   Since the invention according to the prior art disclosed in Patent Document 1 uses a heating means that burns gas and uses the flame as a heat source, it is necessary to always supply gas in order to maintain the flame that is the heating means. was there.

また、加熱時において、トーチから噴射される炎を、歪み部分に対して一定の距離を保ち、板金の広範囲に均一、適正に噴射加熱をすることは、非常に熟練を要するものであった。   In addition, it is very skillful to heat the flame sprayed from the torch at a constant distance from the strained part and to spray and heat it uniformly over a wide area of the sheet metal.

更にガスが噴射燃焼される構成のため、作業者に対する危険性や周辺環境による火災発生の危険性等が高い欠点があった。   Furthermore, because of the configuration in which gas is injected and burned, there are disadvantages such as high danger to workers and risk of fire due to the surrounding environment.

一方、特許文献2に係る発明は、鉄板に溶接して設置することで、アースを確実にとることができる点において優れるが、アルミ板に対して確実に溶接することができないため、アルミ板に対してアースを確実にとることができない欠点があった。   On the other hand, the invention according to Patent Document 2 is excellent in that it can be securely grounded by welding to an iron plate, but it cannot be reliably welded to an aluminum plate. On the other hand, there was a drawback that the earth could not be reliably taken.

本発明は以上の事情に鑑みてなされてものであり、危険性が高く温度管理の難しいガス炎を用いることなく、取扱い性に優れ、安全性が高く、アルミ板に対してアースを確実にとることができ、高い熟練を要することなく、容易に均一な加熱を行うことができる板金修復手段を用いた板金修復方法を提供することを、発明が解決しようとする課題とする。 The present invention has been made in view of the above circumstances, and without using a gas flame that is highly dangerous and difficult to control temperature, is excellent in handling, high in safety, and reliably grounds the aluminum plate. Therefore, an object of the present invention is to provide a sheet metal restoration method using a sheet metal restoration means that can perform uniform heating easily without requiring high skill.

本発明は、板金の修復箇所の引出し手段による引出しと、引出し時に生ずる突出部分や歪みの修復について、加熱及び冷却を行う板金の修復方法であって、板金に対する引出し手段を設置する前に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、引出し手段による引出し終了後、引出し手段を取り外した後に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、その後冷却するものとし、前記加熱手段は炭素と金属の合金を含有する押圧手段とした板金修復用治具とし、板金修復用治具に対して連続的に通電して発熱させ、該発熱した板金修復用治具を板金に対して押圧摺動して加熱する板金修復方法において、板金はアルミニウム製板金とし、通電手段として溶接機を有し、該溶接機は、アース接続装置と、加熱手段として炭素と金属の合金を含有する押圧手段とした板金修復用治具を有し、前記アース接続装置は、その下面には板金に当接するアース接点を突設し、前記アース接点は、銀接点とし、アルミニウム製の板金の表面に対してスタッドボルトを溶植し、ブリッジ部材は前記スタッドボルトに対する螺合手段を備え、前記ブリッジ部材と板金表面で前記アース接続装置を挟持押圧し、板金修復用治具の加熱手段は、連続的な通電によってアルミニウム製板金と前記アース接点と押圧接触して通電し、通電によって発熱し、板金に対して発熱した加熱手段を押圧摺動する板金修復方法を、課題を解決するための手段とする。 The present invention relates to a method of repairing a sheet metal by heating and cooling the sheet metal at a repaired portion by a drawing means and repairing a protruding portion or distortion generated at the time of drawing, and before installing the drawing means for the sheet metal, The repaired portion or its vicinity is heated by the heating means, and after the drawing by the drawing means is completed, the drawing means is removed, and then the repaired portion of the sheet metal or its vicinity is heated by the heating means and then cooled. The heating means is a sheet metal repairing jig which is a pressing means containing an alloy of carbon and metal. The sheet metal repairing jig is continuously energized to generate heat, and the heated sheet metal repairing jig is heated. in sheet metal repair method of heating by pressing slide tool against the sheet metal, the sheet metal is made of aluminum sheet metal, has a welding machine as energizing means, the welding machine, ground connection device And a sheet metal repairing jig as a pressing means containing an alloy of carbon and metal as a heating means, and the ground connection device has a ground contact projecting on the lower surface thereof, and the ground contact is In this case, a silver contact is used, and a stud bolt is fused to the surface of the aluminum sheet metal, and the bridge member is provided with screwing means for the stud bolt, and sandwiches and presses the ground connection device between the bridge member and the sheet metal surface. The heating means of the sheet metal repair jig is a sheet metal repair that presses and slides the aluminum sheet metal and the ground contact by continuous energization, energizes, generates heat by energization, and presses and slides the heating means that generates heat against the sheet metal. The method is a means for solving the problem.

本発明によれば、板金の修復箇所の引出し手段による引出しと、引出し時に生ずる突出部分や歪みの修復について、加熱及び冷却を行う板金の修復方法であって、板金に対する引出し手段を設置する前に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、引出し手段による引出し終了後、引出し手段を取り外した後に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、その後冷却するものとし、前記加熱手段は炭素と金属の合金を含有する押圧手段とした板金修復用治具とし、板金修復用治具に対して連続的に通電して発熱させ、該発熱した板金修復用治具を板金に対して押圧摺動して加熱する板金の修復方法において、板金はアルミニウム製板金とし、通電手段として溶接機を有し、該溶接機は、アース接続装置と、加熱手段として炭素と金属の合金を含有する押圧手段とした板金修復用治具を有し、前記アース接続装置はその下面に板金に当接するアース接点を突設し、前記アース接点は銀接点とし、アルミニウム製の板金の表面に対してスタッドボルトを溶植し、ブリッジ部材は前記スタッドボルトに対する螺合手段を備え、前記ブリッジ部材と板金表面で前記接続装置主体を挟持押圧し、板金修復用治具の加熱手段は、連続的な通電によってアルミニウム製板金と前記アース接点と押圧接触して通電し、通電によって発熱し、板金に対して発熱した加熱手段を押圧摺動することとしたから、アルミニウム製板金に溶植したスタッドボルトとブリッジ部材の螺合手段とを螺合し、ブリッジ部材で前記アース接続装置を下方へ付勢し、アルミニウム製板金を押圧接触して通電することで、通常溶着し難いアルミニウム製板金について、連続的に十分にアースをとることが可能となり、本発明の板金修復用治具の加熱手段を用いた優れた板金修復を行うことができる。 According to the present invention, there is provided a method of repairing a sheet metal by heating and cooling with respect to the drawing of the repaired portion of the sheet metal by the drawing means and the repair of the protruding portion and distortion generated at the time of drawing, and before installing the drawing means for the sheet metal Then, the repaired portion of the sheet metal or the vicinity thereof is heated by the heating means, and after the drawing by the drawing means is completed, the drawing means is removed, and then the repaired portion of the sheet metal or the vicinity thereof is heated by the heating means, and thereafter The heating means is a sheet metal repairing jig that is a pressing means containing an alloy of carbon and metal, and the sheet metal repairing jig is continuously energized to generate heat, and the heated sheet metal is repaired. In a method for repairing a sheet metal in which a jig is pressed and slid against the sheet metal and heated, the sheet metal is an aluminum sheet metal and has a welding machine as a current-carrying means. A sheet metal repairing jig as a pressing means containing an alloy of carbon and metal as a heating means, and the ground connection device has a ground contact projecting on the lower surface thereof to contact the sheet metal, and the ground contact Is a silver contact, and a stud bolt is fused to the surface of an aluminum sheet metal, and the bridge member is provided with screwing means for the stud bolt, and sandwiches and presses the connection device main body between the bridge member and the sheet metal surface, The heating means of the sheet metal repairing jig is energized by pressing and contacting the aluminum sheet metal and the ground contact by continuous energization, generating heat by energization, and pressing and sliding the heating means generated against the sheet metal. Therefore, the stud bolt fused to the aluminum sheet metal and the screwing means of the bridge member are screwed together, and the earth connection device is biased downward by the bridge member, It is possible to take a sufficient grounding continuously for an aluminum sheet metal that is usually difficult to weld by pressing and contacting the sheet metal sheet metal, and it is excellent using the heating means of the jig for repairing a sheet metal of the present invention Sheet metal repair can be performed.

本発明の実施例で使用する第1の板金修復用治具1を備えた板金修復装置を示す一部省略した斜視図である。It is the perspective view which abbreviate | omitted partially which shows the sheet metal repair apparatus provided with the 1st jig | tool 1 for sheet metal repair used in the Example of this invention. 本発明の実施例で使用する第1の板金修復用治具を示す斜視図である。It is a perspective view which shows the 1st jig | tool for sheet metal repair used in the Example of this invention. 本発明の実施例で使用する第1の板金修復用治具1を示す一部分解した状態の正面図である。1 is a partially exploded front view showing a first sheet metal repair jig 1 used in an embodiment of the present invention. FIG. 本発明の実施例で使用する第1の板金修復用治具の一部断面とした正面図である。It is the front view made into the partial cross section of the 1st jig | tool for sheet metal repair used in the Example of this invention. 本発明の実施例で使用する第1の板金修復装置の一部省略した電気配線図である。It is the electrical wiring diagram which a part of the 1st sheet metal repair apparatus used in the Example of this invention was abbreviate | omitted. 本発明の実施例で使用する第1の板金修復用装置におけるブリッジ部材を取付けたアース接続装置を示す斜視図である。It is a perspective view which shows the earth | ground connection apparatus which attached the bridge member in the 1st apparatus for sheet metal repair used in the Example of this invention. 本発明の実施例で使用する第1のブリッジ部材及びアース接続装置を(a)板金に対して取付ける前の状態を示す一部断面図、(b)板金に対して取付けた状態を示す一部断面図である。(A) Partial sectional view showing a state before the first bridge member and ground connection device used in the embodiment of the present invention are attached to the sheet metal, (b) Part showing the state attached to the sheet metal It is sectional drawing. 本発明の実施例で使用する第1の板金修復装置を板金に対して設置した状態を示す一部省略した説明図である。It is explanatory drawing partly abbreviate | omitted which shows the state which installed the 1st sheet metal repair apparatus used in the Example of this invention with respect to the sheet metal. 本発明の実施例で使用する第2の板金修復用治具を示す正面図である。It is a front view which shows the 2nd jig | tool for sheet metal repair used in the Example of this invention. 本発明の実施例で使用する第2の板金修復用治具を示す一部断面とした正面図である。It is the front view made into the partial cross section which shows the 2nd jig | tool for sheet metal repair used in the Example of this invention. 本発明の実施例で使用する第3の板金修復用治具を示す一部断面とした正面図である。It is the front view made into the partial cross section which shows the 3rd jig | tool for sheet metal repair used in the Example of this invention. 本発明の実施例で使用するブリッジ部材1と他のアース接続装置を示す斜視図である。It is a perspective view which shows the bridge member 1 used in the Example of this invention, and another earth connection apparatus. 本発明の実施例で使用する第1のブリッジ部材と他のアース接続装置を示す、(c)一部断面とした正面図、(d)底面図である。It is the front view made into the partial cross section which shows the 1st bridge member used in the Example of this invention, and another earth connection apparatus, (d) It is a bottom view. 本発明の実施例で使用する第1のブリッジ部材と他のT字型連結部材で連結した二基のアース接続装置を示す斜視図である。It is a perspective view which shows the two ground connection apparatuses connected with the 1st bridge | bridging member and other T-shaped connection member which are used in the Example of this invention. 本発明の実施例で使用する二基の他のアース接続装置とT字型連結部材との関係を示す、(e)一部断面とした正面図、(f)底面図である。It is the front view made into the partial cross section which shows the relationship between the two other earth | ground connection apparatuses used in the Example of this invention, and a T-shaped connection member, (f) It is a bottom view.

1 板金修復用治具
10 ローラ
11 温度センサ
110 センサ用ケーブル
111 温度調節器
113 本体制御基板
114 制御素子
115 電源
116 ブレーカ
117 変圧器
118 手元操作スイッチ
119 信号線
12 保持枠
12A 保持枠軸受部
12B 保持枠杆部
13 ローラ軸
130 センサ当接部
131 ローラ軸穴
14 軸体
15 板金押圧部
15A 先端側板金押圧部
15B 側方板金押圧部
150 センサ当接部
151 センサ挿通凹部
16 連結部
17 軸穴
18 センサ保持体
180 センサ保持通路
19 接続金具
2 板金修復装置本体
20 電極部
21 ケーブル
22 グリップ部
23 スイッチ
3 ブリッジ部材
30 底板
30A 取付穴
30B 位置決め穴
31 側板
32 天板
32A 逃し穴
33 ツマミナット
330 ツマミ部
331 ストッパ
4 アース接続装置
40 アース用接点
41 T字型連結部材
42 圧縮コイルばね
43 アース接続棒
44 絶縁スリーブ
45 電極接続部
46 下面
5 スタッドボルト
6 板金
7 板金修復装置
DESCRIPTION OF SYMBOLS 1 Sheet metal repair jig | tool 10 Roller 11 Temperature sensor 110 Sensor cable 111 Temperature controller 113 Main body control board 114 Control element 115 Power supply 116 Breaker 117 Transformer 118 Hand operation switch 119 Signal line 12 Holding frame 12A Holding frame bearing part 12B Holding Frame collar part 13 Roller shaft 130 Sensor contact part 131 Roller shaft hole 14 Shaft body 15 Sheet metal pressing part 15A Front side sheet metal pressing part 15B Side sheet metal pressing part 150 Sensor contact part 151 Sensor insertion recessed part 16 Connection part 17 Shaft hole 18 Sensor holding body 180 Sensor holding passage 19 Connection fitting 2 Sheet metal restoration device body 20 Electrode portion 21 Cable 22 Grip portion 23 Switch 3 Bridge member 30 Bottom plate 30A Mounting hole 30B Positioning hole 31 Side plate 32 Top plate 32A Relief hole 33 Knob nut 330 Knob 331 Stopper 4 Ground connection device 40 Ground contact point 41 T-shaped connecting member 42 Compression coil spring 43 Ground connection rod 44 Insulation sleeve 45 Electrode connection portion 46 Lower surface 5 Stud bolt 6 Sheet metal 7 Sheet metal repair device

本発明によれば、板金の修復箇所の引出し手段による引出しと、引出し時に生ずる突出部分や歪みの修復について、加熱及び冷却を行う板金の修復方法であって、板金に対する引出し手段を設置する前に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、引出し手段による引出し終了後、引出し手段を取り外した後に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、その後冷却するものとし、前記加熱手段は炭素と金属の合金を含有する押圧手段とした板金修復用治具とし、板金修復用治具に対して連続的に通電して発熱させ、該発熱した板金修復用治具を板金に対して押圧摺動して加熱する板金の修復方法において、板金はアルミニウム製板金とし、通電手段として溶接機を有し、該溶接機は、アース接続装置と、加熱手段として炭素と金属の合金を含有する押圧手段とした板金修復用治具を有し、前記アース接続装置はその下面に板金に当接するアース接点を突設し、前記アース接点は銀接点とし、アルミニウム製の板金の表面に対してスタッドボルトを溶植し、ブリッジ部材は前記スタッドボルトに対する螺合手段を備え、前記ブリッジ部材と板金表面で前記接続装置主体を挟持押圧し、板金修復用治具の加熱手段は、連続的な通電によってアルミニウム製板金と前記アース接点と押圧接触して通電し、通電によって発熱し、板金に対して発熱した加熱手段を押圧摺動することとしたから、アルミニウム製板金に溶植したスタッドボルトとブリッジ部材の螺合手段とを螺合し、ブリッジ部材で前記アース接続装置を下方へ付勢し、アルミニウム製板金を押圧接触して通電することで、通常溶着し難いアルミニウム製板金について、連続的に十分にアースをとることが可能となり、本発明の板金修復用治具の加熱手段を用いた優れた板金修復方法を実現した。According to the present invention, there is provided a method of repairing a sheet metal by heating and cooling with respect to the drawing of the repaired portion of the sheet metal by the drawing means and the repair of the protruding portion and distortion generated at the time of drawing, and before installing the drawing means for the sheet metal Then, the repaired portion of the sheet metal or the vicinity thereof is heated by the heating means, and after the drawing by the drawing means is completed, the drawing means is removed, and then the repaired portion of the sheet metal or the vicinity thereof is heated by the heating means, and thereafter The heating means is a sheet metal repairing jig that is a pressing means containing an alloy of carbon and metal, and the sheet metal repairing jig is continuously energized to generate heat, and the heated sheet metal is repaired. In a method for repairing a sheet metal in which a jig is pressed and slid against the sheet metal and heated, the sheet metal is an aluminum sheet metal and has a welding machine as a current-carrying means. A sheet metal repairing jig as a pressing means containing an alloy of carbon and metal as a heating means, and the ground connection device has a ground contact projecting on the lower surface thereof to contact the sheet metal, and the ground contact Is a silver contact, and a stud bolt is fused to the surface of an aluminum sheet metal, and the bridge member is provided with screwing means for the stud bolt, and sandwiches and presses the connection device main body between the bridge member and the sheet metal surface, The heating means of the sheet metal repairing jig is energized by pressing and contacting the aluminum sheet metal and the ground contact by continuous energization, generating heat by energization, and pressing and sliding the heating means generated against the sheet metal. Therefore, the stud bolt fused to the aluminum sheet metal and the screwing means of the bridge member are screwed together, and the earth connection device is biased downward by the bridge member, It is possible to take a sufficient grounding continuously for an aluminum sheet metal that is usually difficult to weld by pressing and contacting the sheet metal sheet metal, and it is excellent using the heating means of the jig for repairing a sheet metal of the present invention Realized a sheet metal repair method.

図1は本発明の板金修復方法の実施例で使用する第1の板金修復用治具1を備えた板金修復装置を示す一部省略した斜視図、図2は同実施例で使用する第1の板金修復用治具を示す斜視図、図3は同実施例で使用する第1の板金修復用治具1を示す一部分解した状態の正面図、図4は同実施例で使用する第1の板金修復用治具の一部断面とした正面図、図5は同実施例で使用する第1の板金修復装置の一部省略した電気配線図、図6は同実施例で使用する第1の板金修復用装置におけるブリッジ部材を取付けたアース接続装置を示す斜視図、図7は同実施例で使用する第1のブリッジ部材及びアース接続装置を(a)板金に対して取付ける前の状態を示す一部断面図、(b)板金に対して取付けた状態を示す一部断面図、図8は同実施例で使用する第1の板金修復装置を板金に対して設置した状態を示す一部省略した説明図である。 FIG. 1 is a partially omitted perspective view showing a sheet metal repairing apparatus equipped with a first sheet metal repairing jig 1 used in an embodiment of the sheet metal repairing method of the present invention, and FIG. 2 is a first view used in the embodiment . perspective view of a sheet metal repair jig, FIG. 3 is a first front view of a disassembled state a part showing a first sheet metal repair jig 1 used in the embodiment, FIG. 4 is used in the same embodiment front view of a partial section of the sheet metal repair jig, FIG. 5 is an electrical wiring diagram omitted part of the first sheet metal repair apparatus used in the embodiment, FIG. 6 is first used in the examples FIG. 7 is a perspective view showing a ground connection device to which a bridge member is attached in the sheet metal restoration device of FIG. 7. FIG. 7 shows a state before the first bridge member and the ground connection device used in the embodiment are attached to the sheet metal (a). partial sectional view illustrating, partially sectional view showing a state in which attached to (b) the sheet metal, Fig. 8 is used in the same embodiment The first sheet metal repair apparatus is an explanatory view partially omitted showing an installed state of relative sheet metal.

本発明の板金修復方法の実施例で使用する第1の板金修復装置は、一般鋼板用のポータブル溶接機をベースとしたものであり、図1に示すように、板金修復用治具1と、板金修復装置本体2と、アース接続装置4と、該アース接続装置4を板金に対して押圧固定するブリッジ部材3を備えている。 The first sheet metal restoration device used in the embodiment of the sheet metal restoration method of the present invention is based on a portable welding machine for general steel sheets, and as shown in FIG. A sheet metal repair device main body 2, an earth connection device 4, and a bridge member 3 for pressing and fixing the earth connection device 4 to the sheet metal are provided.

板金修復装置本体2は、電力供給手段であるケーブル21と、該ケーブル21の先端が接続されるグリップ部22と、グリップ部22から延設される電極部20を備えている。通常、一般鋼板用のポータブル溶接機は、電極部20に図示されない電極先端部材を装着するが、本発明の実施例で使用する第1の板金修復装置は、前記電極先端部材に代えて前記板金修復用治具1を装着した構成である。 The sheet metal repair device main body 2 includes a cable 21 that is power supply means, a grip portion 22 to which the tip of the cable 21 is connected, and an electrode portion 20 that extends from the grip portion 22. Normally, a portable welding machine for a general steel plate mounts an electrode tip member (not shown) on the electrode portion 20, but the first sheet metal repair device used in the embodiment of the present invention replaces the electrode tip member with the sheet metal. The repair jig 1 is mounted.

上記板金修復装置における板金修復用治具1は、図2乃至図4に示すように、板金6に対して熱を付与するためのローラ10と、該ローラ10を回動可能とするローラ軸13と、前記ローラ10の軸受となる正面視冂字形状の保持枠12(即ち、左右の保持枠軸受部12Aの各上端を夫々保持枠杆部12Bの端部と連結した構成)を設けている。また、保持枠12の中央部には軸体14を直立して設けている。   As shown in FIGS. 2 to 4, the sheet metal repairing jig 1 in the sheet metal repairing apparatus includes a roller 10 for applying heat to the sheet metal 6, and a roller shaft 13 that can rotate the roller 10. And a holding frame 12 having a letter-like shape in front view to serve as a bearing for the roller 10 (that is, a configuration in which the upper ends of the left and right holding frame bearing portions 12A are respectively connected to the end portions of the holding frame flange portion 12B). . Further, a shaft body 14 is provided upright at the center of the holding frame 12.

前記ローラ10は、銅と炭素の合金を用いている。炭素は固有抵抗が比較的高く、板金に対して熱を付与する熱源として機能し、且つ、板金とは溶着しない。このため、熱源として好適であるが、それ自体では耐摩耗性が低いため、当該耐摩耗性を向上させ、大電流のロスを抑えることが可能な材料として銅を用いた合金としている。当該構成によって、熱源の確保と効率的な熱の供給、及び熱伝導特性の確保、ローラ10としての使用時の耐久性の確保を実現している。   The roller 10 uses an alloy of copper and carbon. Carbon has a relatively high specific resistance, functions as a heat source for applying heat to the sheet metal, and does not weld to the sheet metal. For this reason, although it is suitable as a heat source, since the wear resistance itself is low, it is an alloy using copper as a material capable of improving the wear resistance and suppressing a large current loss. With this configuration, it is possible to secure a heat source, efficiently supply heat, ensure heat conduction characteristics, and ensure durability when used as the roller 10.

また前記ローラ10を回動可能とするローラ軸13は、側面にローラ軸穴131が開口する略中空形状を有している。ローラ軸13の内部中央の一箇所に節となる壁面状のセンサ当接部130を設けている。前記ローラ10を略中空形状とすることで熱容量を小さくし、温度センサの温度検知の正確性を向上させている。   The roller shaft 13 that allows the roller 10 to rotate has a substantially hollow shape with a roller shaft hole 131 opened on a side surface. A wall-shaped sensor abutting portion 130 serving as a node is provided at one location in the center of the roller shaft 13. By making the roller 10 into a substantially hollow shape, the heat capacity is reduced, and the temperature detection accuracy of the temperature sensor is improved.

更に、保持枠12の一方の保持枠軸受部12Aから保持枠杆部12Bに至る外面に当接して温度センサ保持体18を設けている。温度センサ保持体18には、温度検知手段である温度センサ11を通すためのセンサ保持通路180を形成している。   Further, a temperature sensor holding body 18 is provided in contact with the outer surface from one holding frame bearing portion 12A of the holding frame 12 to the holding frame flange portion 12B. The temperature sensor holding body 18 is formed with a sensor holding passage 180 through which the temperature sensor 11 which is a temperature detecting means is passed.

温度センサ11は、温度センサ保持体18のセンサ保持通路180を通じてローラ軸13のローラ軸穴131を通り、前記温度センサ11の先端(検知部分)が前記センサ当接部130に当接した状態で配置している。本実施例で使用する第1の板金修復装置では、温度センサ11で検知する温度が上限180℃、下限80℃として設定している。 The temperature sensor 11 passes through the roller shaft hole 131 of the roller shaft 13 through the sensor holding passage 180 of the temperature sensor holding body 18, and the tip (detection portion) of the temperature sensor 11 is in contact with the sensor contact portion 130. It is arranged. In the first sheet metal repair device used in this embodiment , the temperature detected by the temperature sensor 11 is set as an upper limit of 180 ° C. and a lower limit of 80 ° C.

加熱手段であるローラ10の温度制御は、図1に示すように、温度制御手段である温度調節器111で行う。該温度調節器111は、板金修復装置本体2に内蔵している。   As shown in FIG. 1, the temperature control of the roller 10 serving as a heating means is performed by a temperature regulator 111 serving as a temperature control means. The temperature controller 111 is built in the sheet metal repair device body 2.

実施例で使用する第1の板金修復装置の回路構成の概略を図5に示す。当該回路構成は、電力供給回路と、該電力供給回路に対して変圧器を介して連結される出力側回路を備えている。 FIG. 5 shows an outline of the circuit configuration of the first sheet metal repairing apparatus used in this embodiment . The circuit configuration includes a power supply circuit and an output side circuit connected to the power supply circuit via a transformer.

前記電力供給回路は、電源115からブレーカ116を経由して、本体制御基板113、温度調節器111、出力調節が可能な電子スイッチである制御素子114、温度センサ11(熱電対センサ)を備えてなる。   The power supply circuit includes a main body control board 113, a temperature regulator 111, a control element 114 which is an electronic switch capable of adjusting output, and a temperature sensor 11 (thermocouple sensor) via a breaker 116 from a power source 115. Become.

出力側回路の電極側となる一端には加熱手段であるローラ10を備えており、他端側はアース側となるアース接続装置4を連結している。ローラ10内に設置された温度センサ11の信号線119は、温度調節器111に接続している。   One end of the output side circuit on the electrode side is provided with a roller 10 as heating means, and the other end is connected to a ground connection device 4 on the ground side. A signal line 119 of the temperature sensor 11 installed in the roller 10 is connected to the temperature controller 111.

手元操作スイッチ118をONにすることで、本体制御基板113、温度調節器111、温度センサ11は通電状態となる。   By turning on the hand operation switch 118, the main body control board 113, the temperature adjuster 111, and the temperature sensor 11 are energized.

ローラ10内に埋め込まれた温度センサ11は、前記ローラ10の温度を計測し、温度センサ検出線を通じて温度調節器へ出力する。温度調節器には設定温度調節ツマミを備えており、該設定温度調節ツマミで任意に設定した温度(以下、設定温度)に達すると温度調節器の接点出力が働き、本体制御基板113は、出力の大小を制御する。計測温度が設定温度の上限を超えると、温度調節器接点をON、OFFして一定の温度を保持制御する。   The temperature sensor 11 embedded in the roller 10 measures the temperature of the roller 10 and outputs it to the temperature regulator through the temperature sensor detection line. The temperature controller is provided with a set temperature control knob. When the temperature reaches a temperature arbitrarily set by the set temperature control knob (hereinafter, set temperature), the contact output of the temperature controller works, and the main body control board 113 outputs Control the size of. When the measured temperature exceeds the upper limit of the set temperature, the temperature controller contact is turned on and off to maintain and control a constant temperature.

また、制御素子は、手元操作スイッチ118をONにすることで、本体に内蔵された一定間隔で断続的に繰返す内部タイマーの出力と連動して動作し、前記温度調節器111で設定した一定温度となるように制御する。
尚、本板金修復方法の実施例では、内部断続タイマー出力等による制御素子のON、OFF駆動、及び出力の大小の調節を、CPUが制御する構成とすることもできる。
In addition, the control element operates in conjunction with the output of an internal timer that repeats intermittently at a constant interval built in the main body by turning on the hand operation switch 118, and the constant temperature set by the temperature controller 111. Control to be
In the embodiment of the sheet metal repair method , the CPU can also control the ON / OFF driving of the control element and the adjustment of the output by the internal intermittent timer output or the like.

一方、本板金修復方法の実施例で使用する第1の板金修復用治具1は、ローラ10以外の加熱手段として、後記板金押圧部15を有する接続金具19を備えている。 On the other hand, the first sheet metal repairing jig 1 used in the embodiment of the present sheet metal repairing method includes a connection fitting 19 having a sheet metal pressing portion 15 as a heating means other than the roller 10.

該接続金具19は、一端に前記軸穴17を有し他端に前記電極部20との連結部16を有する円柱体形状とし、更に該円柱体の長手中央位置から側方へ柱状の板金押圧部15を突設したT字状である。そして、前記板金押圧部15の材質は前記ローラ10と同様に、耐熱性を有する合金として、銅と炭素の合金としている。   The connection fitting 19 has a cylindrical body shape having the shaft hole 17 at one end and a connecting portion 16 with the electrode part 20 at the other end, and further pressing a columnar sheet metal from the longitudinal center position of the cylindrical body to the side. It is a T-shape with a protruding portion 15. And the material of the said sheet metal press part 15 is made into the alloy of copper and carbon as an alloy which has heat resistance similarly to the said roller 10. FIG.

接続金具19の軸穴17に前記軸体14が嵌り込み、軸体14を基準として接続金具19が回動可能となる構成である。   The shaft body 14 is fitted into the shaft hole 17 of the connection fitting 19, and the connection fitting 19 can be rotated with respect to the shaft body 14.

以上の構成を備えた板金修復装置及び板金修復用治具1について、アルミニウム製板金に対する使用方法及び設置構成について、以下に説明する。尚、アルミニウム製板金は、一般鋼板用の溶接機用アース側接続装置では、十分に強固な溶着ができないことから、十分にアースをとることができない。板金6の材質が、高張力鋼板等、鉄製のものであれば、アース側となる通電手段としては、例えば、従来技術で開示した特許文献2に係る溶接機用アース側接続装置を用いることができる。(即ち、溶接機用アース側接続装置のアース接続棒を板金に対して溶着して、通電させる。)   About the sheet-metal repair apparatus and the sheet-metal repair jig | tool 1 provided with the above structure, the usage method and installation structure with respect to aluminum sheet metal are demonstrated below. Note that an aluminum sheet metal cannot be sufficiently grounded by a welding machine ground side connection device for a general steel sheet because it cannot be sufficiently firmly welded. If the material of the sheet metal 6 is made of iron such as a high-tensile steel plate, for example, the ground-side connection device for a welding machine according to Patent Document 2 disclosed in the related art may be used as the energizing means on the ground side. it can. (That is, the ground connection rod of the welding machine ground side connection device is welded to the sheet metal and energized.)

また、通電時間が約0.2秒乃至0.5秒程度と短いスポット溶接機とは異なり、本発明に係る板金修復装置は、長時間連続して大電流を通電させるため、板金用修復装置に対応してアースをとるには特別な構成のアース接続装置4が必要となる。   Further, unlike a spot welder having a short energization time of about 0.2 to 0.5 seconds, the sheet metal repairing apparatus according to the present invention continuously energizes a large current for a long time. In order to provide grounding corresponding to the above, a specially configured ground connection device 4 is required.

先ず、溶接に必要な一対の電極のうちの一方であるアース接続装置4を、当該板金6に取付ける。本板金修復方法の実施例で使用する第1の板金用修復装置に対応したアース接続装置4を図6及び図7(a)(b)に示す。 First, the ground connection device 4 which is one of a pair of electrodes necessary for welding is attached to the sheet metal 6. FIGS. 6 and 7A and 7B show a ground connection device 4 corresponding to the first sheet metal repair device used in the embodiment of the sheet metal repair method .

板金修復方法の実施例で使用する第1のアース接続装置4は、電極接続部45を具備した導電性部材からなる柱状基体の中心部縦方向に中央穴を貫設し、また該中央穴の一端(下面46側)開口部の周囲に複数のアース用接点40を突設し、前記中央穴の他端開口部側に貫着固定した絶縁スリーブ44と、頭部に仮溶接分離手段を具備し圧縮コイルばね42及び絶縁スリーブ44を貫通して中央穴の一端開口側へ圧縮コイルばね42に抗して突出保持させたアース接続棒43を備える。前記アース用接点40は、特に電気抵抗の小さい銀接点とする。 The first ground connection device 4 used in the embodiment of the present sheet metal repairing method has a central hole penetrating in the longitudinal direction of the central portion of the columnar base member made of a conductive member having an electrode connection portion 45, and the central hole. A plurality of grounding contacts 40 project around the opening at one end (on the lower surface 46 side) of the inner sleeve, and the insulating sleeve 44 is fixedly attached to the other end opening side of the central hole. A grounding connecting rod 43 is provided which penetrates the compression coil spring 42 and the insulating sleeve 44 and protrudes and is held against one end opening side of the central hole against the compression coil spring 42. The ground contact 40 is a silver contact having a particularly low electric resistance.

前記ブリッジ部材3は、鉄鋼板をプレス加工して得られるもので、天板32の左右を夫々下方へ折曲してなる側壁31と該側壁31の下端側を外側へ折曲してなる底板30とを連続形成してなる。底板30にはスタッドボルト5を通すための取付穴30Aとスタッドボルト5の位置決めを行うための位置決め穴30Bを備え、天板32には、アース接続装置4の上端を逃すための逃し穴32Aを備えている。   The bridge member 3 is obtained by pressing a steel plate, and includes a side wall 31 formed by bending the left and right sides of the top plate 32 downward and a bottom plate formed by bending the lower end side of the side wall 31 outward. 30. The bottom plate 30 has a mounting hole 30A for passing the stud bolt 5 and a positioning hole 30B for positioning the stud bolt 5, and the top plate 32 has a relief hole 32A for letting out the upper end of the ground connection device 4. I have.

アース接続装置4の設置方法は、先ず、コンデンサ放電型のスタッド溶接方法を用いて、アルミニウム製の被修復面近傍にスタッドボルト5を二本溶植し、ブリッジ部材3と被修復面との間にアース接続装置4を配置する。アース接続装置4とブリッジ部材3の天板32における逃し穴32Aとを一致させ、且つ、スタッドボルト5とブリッジ部材3の底板30における取付穴30Aとを一致させて、アース接続装置4をブリッジ部材3と被修復面で挟持する。   The ground connection device 4 is installed by first depositing two stud bolts 5 in the vicinity of the repaired surface made of aluminum using a capacitor discharge type stud welding method, and between the bridge member 3 and the repaired surface. The ground connection device 4 is disposed on the ground. The ground connection device 4 and the escape hole 32A in the top plate 32 of the bridge member 3 are matched, and the stud bolt 5 and the mounting hole 30A in the bottom plate 30 of the bridge member 3 are matched, so that the ground connection device 4 is bridge member. 3 and the surface to be repaired.

次いで、スタッドボルト5に対応する雌螺子を有するツマミナット33を取付けて締め込み、ブリッジ部材3でアース接続装置4を下方へ付勢する構成とする。ツマミナット33はブリッジ部材3の底板の上面側にツマミ部330を配置し、下面側に外れ止めのストッパ331が露呈する構成としている。スタッドボルト5と螺合していない状態でもブリッジ部材3から離脱しない構成とすることによって、ツマミナット33の紛失防止効果を有する。以上のアース接続装置4の設置によって、次に示す本発明の実施例で使用する第1の板金修復用治具1を使用することができる。また、位置決め穴30Bを設けたことによって、スタッドボルト5を螺合した状態においても、位置決め穴30Bから板金の所定位置を確認することができるから、的確にスタッドボルト5の取付位置を決定することができる。 Next, a knob nut 33 having a female screw corresponding to the stud bolt 5 is attached and tightened, and the ground connection device 4 is biased downward by the bridge member 3. The knob nut 33 is configured such that a knob portion 330 is disposed on the upper surface side of the bottom plate of the bridge member 3 and a stopper 331 for preventing the detachment is exposed on the lower surface side. Even if the stud bolt 5 is not screwed in, the knob nut 33 can be prevented from being lost by preventing the bridge member 3 from being detached. By installing the ground connection device 4 as described above, the first sheet metal repairing jig 1 used in the following embodiment of the present invention can be used. In addition, since the positioning hole 30B is provided, the predetermined position of the sheet metal can be confirmed from the positioning hole 30B even in the state where the stud bolt 5 is screwed, so that the mounting position of the stud bolt 5 is accurately determined. Can do.

実施例で使用する第1の板金修復用治具は、(1)引出し手段であるプーラ等(以下、プーラ及スタッドボルトをいう。本実施例において以下同じ。)を取り外すまでの引出し工程と、(2)プーラ等の取り外し後に残る板金の伸びた部分の歪みに対し加熱、冷却して縮める修復工程において、使用する。 The first sheet metal repairing jig used in the present embodiment is (1) a pulling-out process until a puller or the like (hereinafter referred to as a puller and a stud bolt, which is the same in the present embodiment) as pull-out means is removed. (2) Used in a repairing process in which the distortion of the stretched portion of the sheet metal remaining after removal of the puller or the like is contracted by heating and cooling.

(1)引出し手段であるプーラ等を取り外すまでの引出し工程においては、板金修復用治具1による加熱操作は、プーラ等の取付前に行うこともできるし、プーラ等を取付けて板金6の凹み部分の引出しを行うのに並行して、加熱操作を行うこともできる。また、両方の加熱操作を併せて行うこともできる。 (1) In the pulling out process until the puller or the like as the pulling means is removed, the heating operation by the sheet metal repairing jig 1 can be performed before the puller or the like is attached, or the puller or the like is attached and the sheet metal 6 is recessed. A heating operation can be performed in parallel with the withdrawal of the part. Moreover, both heating operation can also be performed collectively.

プーラ等の取付前にローラ10を用いて、板金を加熱することによって、プーラ及びスタッドボルト5といった障害物がない条件で、ローラ10の摺動操作を行うことがでるため、より高精度の修復を行うことができ、また作業効率を高めることができる。   By heating the sheet metal using the roller 10 before attaching the puller or the like, the roller 10 can be slid under the condition that there are no obstacles such as the puller and the stud bolt 5, so that the restoration can be performed with higher accuracy. It is possible to improve the work efficiency.

そして、本実施例に係る発明においては、プーラ等を取付けて板金6の凹み部分の引出しを行うのに並行して、プーラと板金6の接続部分及びその近傍を押圧加熱する。このようにすることで、板金6が軟らかくなり、プーラで引出した後に自然冷却することで板金6が引出し後の形状で保持され、プーラを取り外す際に生ずる反発弾性が低下し、跳ね返り(元の形状への急速な復元)がなくなる。このため、引出した形状を維持して、プーラを取り外すことができる。 And in the invention which concerns on a present Example , a puller etc. are attached and in parallel with drawing out the recessed part of the sheet metal 6, the connection part of the puller and the sheet metal 6 and its vicinity are pressed and heated. By doing so, the sheet metal 6 becomes soft and naturally cooled after being pulled out by the puller, so that the sheet metal 6 is held in the shape after being pulled out, and the rebound resilience generated when the puller is removed is lowered and rebounded (original Rapid restoration to shape). For this reason, the puller can be removed while maintaining the drawn shape.

(2)そして、修復工程では、引出し後の板金6の伸びた歪みの修復を、歪み部分を含むより広範囲の領域で、加熱手段であるローラ10を板金6に対して押圧摺動することで行う。 (2) In the repairing process, the stretched strain of the sheet metal 6 after the drawing is repaired by pressing and sliding the roller 10 as the heating means against the sheet metal 6 in a wider area including the strained portion. Do.

この際に、ローラ10による加熱温度は、温度制御手段によって、当該板金6に適する所定温度で略一定に保たれている。そして、従来ガス炎の噴射時には、トーチと板金との距離は変動するものであったところ、本発明によれば、熱源であるローラ10と板金6との距離は常に一定している。これらの要素によって、本発明における板金修復用治具1を用いることで、特に熟練を要することもなく、非常に簡単に均一な加熱を行うことができる。また、ローラ10を摺動させるだけの操作であるから、ガス炎などを用いる手段とは異なり、高い安全性を確保することができる。   At this time, the heating temperature by the roller 10 is kept substantially constant at a predetermined temperature suitable for the sheet metal 6 by the temperature control means. In the conventional gas flame injection, the distance between the torch and the sheet metal fluctuates. However, according to the present invention, the distance between the roller 10 as the heat source and the sheet metal 6 is always constant. By using the sheet metal repairing jig 1 according to the present invention by these elements, uniform heating can be performed very easily and without special skill. Further, since the operation is only to slide the roller 10, high safety can be ensured unlike means using a gas flame or the like.

また、接続金具19における板金押圧部15は、プーラによる引出し作業や歪みとして形成された局所的な突出部に対して加熱押圧することにより、板金6の突出部を凹ませる。そして、局部的に絞り(熱収縮)を行い、自然冷却によって最終的に板金6を平滑な状態とする。   Further, the sheet metal pressing portion 15 in the connection fitting 19 dents the protruding portion of the sheet metal 6 by heating and pressing a local protruding portion formed as a pulling work or distortion by a puller. And it restrict | squeezes locally (heat contraction) and finally makes the sheet metal 6 a smooth state by natural cooling.

(板金修復方法の実施例において使用する第2の板金修復用治具を用いた例)
また、本発明の板金修復方法の実施例で使用する第2の板金修復用治具1を図9及び図10に示す。図9は本発明の同実施例で使用する第2の板金修復用治具1を示す正面図、図10は同実施例で使用する第2の板金修復用治具1を示す一部断面とした正面図である。
(Example using the second sheet metal repair jig used in the embodiment of the sheet metal repair method)
Moreover, the 2nd jig | tool 1 for sheet metal repair used in the Example of the sheet metal repair method of this invention is shown in FIG.9 and FIG.10. FIG. 9 is a front view showing a second sheet metal repair jig 1 used in the embodiment of the present invention, and FIG. 10 is a partial cross section showing the second sheet metal repair jig 1 used in the embodiment . FIG.

板金修復方法の実施例で使用する第2の板金修復用治具1は、同実施例で使用する第1の板金修復用治具1におけるローラ10と該ローラ10を保持する構成に代えて、柱状の板金押圧部15(以下、先端側板金押圧部15Aという。)を備えた構成である。
即ち、本板金修復方法の実施例で使用する第2の板金修復用治具1は、前記ローラ10に代えて設けた先端側板金押圧部15Aと接続金具19に設けた板金押圧部15(以下、側方板金押圧部15Bという。)の二つの板金押圧部15を備えている。
The second sheet metal repair jig 1 used in the embodiment of the present sheet metal repair method is replaced with the roller 10 in the first sheet metal repair jig 1 used in the embodiment and a configuration for holding the roller 10. , A columnar sheet metal pressing portion 15 (hereinafter referred to as a tip side sheet metal pressing portion 15A).
That is, the second sheet metal repairing jig 1 used in the embodiment of the present sheet metal repairing method is a sheet metal pressing part 15 (hereinafter referred to as a metal plate pressing part 15A provided on the front end side metal sheet pressing part 15A and the connection fitting 19 provided in place of the roller 10). , Referred to as a side sheet metal pressing portion 15B).

これら二つの板金押圧部15は直径寸法が相違する。先端側板金押圧部15Aの直径寸法は30ミリメートル程度、側方板金押圧部15Bの直径寸法は18ミリメートル程度である。尚、本実施例で使用する第2の接続金具19の構成は、実施例で使用する第1の接続金具19と同一である。 These two sheet metal pressing portions 15 have different diameter dimensions. The diameter of the tip side sheet metal pressing portion 15A is about 30 millimeters, and the diameter of the side sheet metal pressing portion 15B is about 18 millimeters. The configuration of the second connection fitting 19 used in this embodiment is the same as that of the first connection fitting 19 used in the embodiment .

また、図9に示すように、先端側板金押圧部15Aの側部に、温度センサ保持体18を当接して設けている。温度センサ保持体18内には、実施例で使用する第1の板金修復用治具1と同様に温度センサ11を通すためのセンサ保持通路180を形成してある。 Moreover, as shown in FIG. 9, the temperature sensor holding body 18 is provided in contact with the side portion of the distal end side metal plate pressing portion 15A. In the temperature sensor holding body 18, a sensor holding passage 180 for passing the temperature sensor 11 is formed in the same manner as the first sheet metal repair jig 1 used in the embodiment .

更に先端側板金押圧部15Aにおける前記センサ保持通路180に対応する位置にセンサ挿通凹部151を設けてあり、温度センサ11の先端がセンサ挿通凹部151の内面であるセンサ当接部150に当接することで、先端側板金押圧部15Aの温度を検知測定する構成としている。そして温度センサ11のセンサ用ケーブル110は、前記制御素子114と接続されており、制御素子114が温度調節器111と温度センサ11によって先端側板金押圧部15Aの温度を所定の範囲内に制御する構成である。   Furthermore, a sensor insertion recess 151 is provided at a position corresponding to the sensor holding passage 180 in the front end side metal plate pressing portion 15 </ b> A, and the tip of the temperature sensor 11 is in contact with the sensor contact portion 150 which is the inner surface of the sensor insertion recess 151. Thus, the temperature of the tip side metal plate pressing portion 15A is detected and measured. The sensor cable 110 of the temperature sensor 11 is connected to the control element 114, and the control element 114 controls the temperature of the front end side metal plate pressing portion 15A within a predetermined range by the temperature adjuster 111 and the temperature sensor 11. It is a configuration.

(板金修復方法の実施例において使用する第3の板金修復用治具を用いた例)
本発明の板金修復方法の実施例で使用する第3の板金修復用治具1を図11に示す。本実施例で使用する第3の板金修復用治具1は、実施例で使用する第2の構成に近似するものであるが、加熱手段が、温度センサ10を有する一個の柱状の板金押圧部15のみを備えるものである。
(Example using the third sheet metal repair jig used in the embodiment of the sheet metal repair method)
A third sheet metal repair jig 1 used in the embodiment of the sheet metal repair method of the present invention is shown in FIG. The third sheet metal repair jig 1 used in the present embodiment is similar to the second configuration used in the embodiment , but the heating means is a single columnar sheet metal pressing portion having a temperature sensor 10. 15 only.

実施例で使用する第3の板金修復用治具1においても、第2の板金修復用治具1と同様に、柱状の板金押圧部15を板金6に押し当て板金表面を摺動させることで、従来のガス炎による加熱とは異なり、常に板金6に対して熱源から一定の距離を保って加熱できるため、熟練を要することなく、容易に均一な加熱を行うことができる点で共通する。本実施例で使用する第3の板金修復用治具1は、一個の柱状の板金押圧部15のみを備えることで、特に局部的な突出部分を押圧するために適した形状とし、ローラでは作業できない幅狭な変形箇所等において、修復作業を容易とする点に特化したものである。 In the third sheet metal repair jig 1 used in the present embodiment , as in the second sheet metal repair jig 1 , the columnar sheet metal pressing portion 15 is pressed against the sheet metal 6 to slide the surface of the sheet metal. Thus, unlike the conventional heating by a gas flame, the sheet metal 6 can always be heated at a fixed distance from the heat source, and therefore it is common in that uniform heating can be easily performed without requiring skill. . The third sheet metal repairing jig 1 used in this embodiment is provided with only one columnar sheet metal pressing portion 15 and has a shape particularly suitable for pressing a locally protruding portion. It specializes in making repair work easier at narrow deformation places where it cannot be done.

本発明において、アース接続装置4の構成は、上記実施例に開示した構成のものに限らず、種々の構成のアース接続装置4に対して、ブリッジ部材3とスタッドボルト5を用いた設置方法を適用することを含む趣旨である。 In the present invention, the configuration of the ground connection device 4 is not limited to the configuration disclosed in the above-described embodiment , and an installation method using the bridge member 3 and the stud bolt 5 is used for the ground connection device 4 having various configurations. Including the application.

従って、例えば、アース接続装置4の構成は、図12及び図13に示すアース接続棒を有しない構成のアース接続装置4や、図14及び図15に示す、T字型連結部材41で二基のアース接続装置4を連結したものにも適用できる。   Therefore, for example, the ground connection device 4 has two configurations including the ground connection device 4 having no ground connection rod shown in FIGS. 12 and 13 and the T-shaped connecting member 41 shown in FIGS. 14 and 15. The present invention can also be applied to a connection of the ground connection device 4.

前記図12及び図13に示したアース接続棒を有しない構成のアース接続装置4は、高張力鋼板に対してアース接続棒を有しないため、高張力鋼板に対する従来の設置方法を使用することはできないが、軽量且つコストの低廉化を図ることができる点で優れている。また、図14及び図15に示す前記二連のアース接続装置4は、本願発明の実施例に係る発明に示すような大電流を扱うために適合したアース手段である。 The ground connection device 4 having no ground connection rod shown in FIGS. 12 and 13 does not have a ground connection rod with respect to the high-strength steel plate. Although not possible, it is excellent in that it can be reduced in weight and cost. 14 and 15 is a grounding means suitable for handling a large current as shown in the invention according to the embodiment of the present invention.

以上の本発明における実施例で使用する第2の加熱手段の温度設定においても、上記実施例で使用する第1の加熱手段の温度設定と同様に、概ね80℃乃至180℃程度としている。しかしながら、本発明における加熱手段を用いたアルミニウム製板金の修復方法においては、当該温度条件に限定するものではなく、板金の材質や厚みなどによって適宜定めることができる。 Also in the temperature setting of the second heating means used in the embodiment of the present invention described above , the temperature is set to about 80 ° C. to 180 ° C. in the same manner as the temperature setting of the first heating means used in the above embodiment . However, the method for repairing an aluminum sheet metal using the heating means in the present invention is not limited to the temperature condition, and can be appropriately determined depending on the material and thickness of the sheet metal.

尚、本発明の実施例で使用する板金修復用治具1は、第1の接続金具19、第2の接続金具19及び第3の接続金具19を備える構成に限定するものではなく、例えば、上記板金修復方法の実施例の構成から接続金具19を除いた構成とすることもできる。 The sheet metal repair jig 1 used in the embodiment of the present invention is not limited to the configuration including the first connection fitting 19, the second connection fitting 19, and the third connection fitting 19 , for example, It can also be set as the structure remove | excluding the connection metal fitting 19 from the structure of the Example of the said sheet metal restoration method .

また、二以上の板金押圧部15を備える構成において、先端側板金押圧部15(15A)、側方板金押圧部15(15B)のいずれの直径を大きくしてもよい。本実施例で使用する第3の板金修復用治具では、よく用いられる先端側板金押圧部15(15B)により直径の大きい(板金6と接触する面積が大きい)板金押圧部15としており、側方板金押圧部15(15B)を補助的な細部への押圧を目的とした直径の小さい板金押圧部15とすることで、利便性に優れた構成としている。 Moreover, in the structure provided with the 2 or more sheet metal press part 15, you may enlarge any diameter of the front end sheet metal press part 15 (15A) and the side sheet metal press part 15 (15B). In the third jig for repairing a sheet metal used in the present embodiment, a sheet metal pressing part 15 having a large diameter (a large area in contact with the sheet metal 6) is formed by a commonly used tip side sheet metal pressing part 15 (15B), By making the sheet metal pressing part 15 (15B) into a sheet metal pressing part 15 having a small diameter for the purpose of pressing the auxiliary details, the structure is excellent in convenience.

ローラ10及び板金押圧部15の材質については、本実施例で使用する第3の板金修復用治具では、概ね合金中の炭素の含有率を10重量%乃至50重量%程度としている。当該範囲で使用すると、耐摩耗性と導電性とのバランスが非常に優れ、好適な加熱手段とすることができる。合金中の炭素の含有率が10%未満程度になると、通電による炭素の有する発熱性能が不十分となる。また、合金中の炭素の含有率が50%を超えると、耐摩耗性が低下し、十分な性能を発揮することができないものとなる。 About the material of the roller 10 and the sheet metal pressing part 15, in the 3rd sheet metal repair jig | tool used in a present Example, the content rate of the carbon in an alloy is about 10 to 50 weight% in general. When used in this range, the balance between wear resistance and conductivity is extremely excellent, and a suitable heating means can be obtained. When the carbon content in the alloy is less than about 10%, the heat generation performance of the carbon due to current flow becomes insufficient. On the other hand, if the carbon content in the alloy exceeds 50%, the wear resistance is lowered and sufficient performance cannot be exhibited.

柱状の板金押圧部15は各縁の角を落として曲面を形成することによって、押圧操作するのみならず、ローラ10のように板金に対して摺動操作を円滑に行うことができる。また、ローラ10と比べて幅狭な形状とすることで、ローラ10では処理できない幅の狭い修復箇所に対して押圧部15で加熱処理を行うことができるため、非常に高い利便性を発揮する。   The columnar sheet metal pressing portion 15 can perform not only a pressing operation but also a sliding operation with respect to the sheet metal smoothly like the roller 10 by forming a curved surface by dropping corners of each edge. In addition, by making the shape narrower than that of the roller 10, it is possible to perform heat treatment with the pressing portion 15 on a repaired portion having a narrow width that cannot be processed by the roller 10. .

また、本発明の実施例で使用する板金修復用治具のうち、ローラ10を有する構成のものについては、前記第1の板金修復用治具では、ローラ10の直径寸法は、長手中央部分の直径寸法が最も大きくなる構成としたが、本願発明で使用する板金修復用治具はこれに限るものではなく、ローラ10の長手方向に亘って全体を同一の直径寸法(即ち、円柱状)とすることもできる。 Of the jigs for repairing a sheet metal used in the embodiments of the present invention, the diameter of the roller 10 in the first sheet metal repair jig is the same as that of the longitudinal center portion. Although the diameter dimension is the largest , the sheet metal restoration jig used in the present invention is not limited to this, and the entire diameter dimension of the roller 10 is the same (that is, cylindrical) throughout the length of the roller 10. You can also

通常、ローラ10の材質を鉄やステンレス等の単体の金属で、大電流を流すと同材質又は他の材質の金属板、高張力鋼板との接触面での局所的な電流集中により、アークが断続的に発生し、鋼板表面が広範囲にアークによる無数の損傷(溶着痕)が発生するところ、上記本発明の構成によれば、炭素を用いることでアークを発生させず、更に金属を併用することで、事実上アークの発生しない範囲で耐久性を向上させ、熟練を要することなく、板金に対する摺動、押圧のみで均一かつ十分な加熱を可能としたのである。   Normally, the material of the roller 10 is a single metal such as iron or stainless steel. When a large current is passed, the arc is generated due to local current concentration at the contact surface with the same or other metal plate or high-tensile steel plate. It occurs intermittently and the surface of the steel plate causes numerous damages (welding marks) due to arc over a wide area. According to the configuration of the present invention, no arc is generated by using carbon, and metal is used in combination. As a result, the durability is improved in a range where virtually no arc is generated, and uniform and sufficient heating can be achieved only by sliding and pressing the sheet metal without requiring skill.

このように、炭素と共に合金として本発明の機能を果たすものの例としては、銅、アルミニウム、真鍮(黄銅)、鉄、ステンレス鋼、タングステン、チタン、炭素鋼、鉛等が挙げられるが、本発明はこれらの合金との組合せのみに限定するものでない。 As described above, examples of the alloy that fulfills the functions of the present invention together with carbon include copper, aluminum, brass (brass), iron, stainless steel, tungsten, titanium, carbon steel, lead, and the like. It is not limited only to the combination with these alloys.

また、本発明におけるアルミニウム製板金の修復方法の実施例において、ブリッジ部の固定手段として、ツマミナットを用いているが、本発明は上記構成に限らず、通常のナット等を固定手段とすることもできる。   In the embodiment of the method for repairing an aluminum sheet metal according to the present invention, a knob nut is used as a fixing means for the bridge portion. However, the present invention is not limited to the above configuration, and a normal nut or the like is used as the fixing means. You can also.

本発明における引出し工程、修復工程での夫々の「冷却」とは、自然冷却に限定するものではない。本発明においては、自然冷却に代えて、水で濡らせた布を板金上に載置することで行うことも含む。また、自然冷却と水でらせた布による冷却を併用することも含む趣旨である。 Each “cooling” in the drawing process and the repairing process in the present invention is not limited to natural cooling. In this invention, it replaces with natural cooling and includes performing by putting the cloth wetted with water on a sheet metal. Also, it is intended to also include a combination of cooling with cloth get wet et allowed by natural cooling and water.

更に本発明の実施例に開示した回路構成は、一例を示すにすぎないものであり、検知した温度の情報処理の手順や、制御手段を含めたハードウェア手段の構成等は、特に限定するものではなく、種々の公知の回路構成や情報処理、ハードウェア手段の構成等を利用することができる。   Further, the circuit configuration disclosed in the embodiment of the present invention is merely an example, and the procedure of information processing of the detected temperature, the configuration of hardware means including the control means, etc. are particularly limited. Instead, various known circuit configurations, information processing, configurations of hardware means, and the like can be used.

Claims (1)

板金の修復箇所の引出し手段による引出しと、引出し時に生ずる突出部分や歪みの修復について、加熱及び冷却を行う板金の修復方法であって、板金に対する引出し手段を設置する前に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、引出し手段による引出し終了後、引出し手段を取り外した後に、板金の修復箇所若しくはその近傍に対して加熱手段で加熱を行い、その後冷却するものとし、前記加熱手段は炭素と金属の合金を含有する押圧手段とした板金修復用治具とし、板金修復用治具に対して連続的に通電して発熱させ、該発熱した板金修復用治具を板金に対して押圧摺動して加熱する板金修復方法において、A sheet metal repairing method that performs heating and cooling with respect to the drawing by the drawing means of the sheet metal repairing part and the repair of the protruding portion and distortion generated at the time of drawing, and before installing the drawing means for the sheet metal, The vicinity is heated by the heating means, and after the drawing by the drawing means is finished, the drawing means is removed, and then the repaired portion of the sheet metal or its vicinity is heated by the heating means, and then cooled, The heating means is a sheet metal repair jig that is a pressing means containing an alloy of carbon and metal. The sheet metal repair jig is continuously energized to generate heat, and the heated sheet metal repair jig is applied to the sheet metal. In the sheet metal repairing method of pressing and sliding against heating,
板金はアルミニウム製板金とし、通電手段として溶接機を有し、該溶接機は、アース接続装置と、加熱手段として炭素と金属の合金を含有する押圧手段とした板金修復用治具を有し、前記アース接続装置は、その下面には板金に当接するアース接点を突設し、前記アース接点は、銀接点とし、アルミニウム製の板金の表面に対してスタッドボルトを溶植し、ブリッジ部材は前記スタッドボルトに対する螺合手段を備え、前記ブリッジ部材と板金表面で前記アース接続装置を挟持押圧し、板金修復用治具の加熱手段は、連続的な通電によってアルミニウム製板金と前記アース接点と押圧接触して通電し、通電によって発熱し、板金に対して発熱した加熱手段を押圧摺動することを特徴とする板金修復方法。The sheet metal is an aluminum sheet metal, and has a welding machine as an energization means, the welding machine has a ground connection device and a sheet metal repair jig as a pressing means containing an alloy of carbon and metal as a heating means, The ground connection device has a ground contact on its lower surface protruding to contact the sheet metal, the ground contact is a silver contact, a stud bolt is fused to the surface of the aluminum sheet metal, and the bridge member is A means for screwing to the stud bolt is provided, and the ground connection device is sandwiched and pressed between the bridge member and the surface of the sheet metal. The heating means of the sheet metal repair jig is in contact with the aluminum sheet metal and the ground contact by continuous energization. Then, the sheet metal repairing method is characterized in that the heating means that generates heat by energization and presses and slides the heating means that generates heat against the sheet metal.
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