JP2008284593A - Tool for pulling out sheet metal and method of repairing sheet metal - Google Patents

Tool for pulling out sheet metal and method of repairing sheet metal Download PDF

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JP2008284593A
JP2008284593A JP2007133568A JP2007133568A JP2008284593A JP 2008284593 A JP2008284593 A JP 2008284593A JP 2007133568 A JP2007133568 A JP 2007133568A JP 2007133568 A JP2007133568 A JP 2007133568A JP 2008284593 A JP2008284593 A JP 2008284593A
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sheet metal
electrode
shaft
recessed
tool
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Tetsuya Tanida
哲也 谷田
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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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for pulling out sheet metal and method of repairing the sheet metal by which repairing is performed simply and rapidly without eliminating tension after pulling out even when the sheet metal is a kind of a high-tensile strength steel sheet and the works of puttying and cutting are performed simply. <P>SOLUTION: This tool is provided with a manipulating shaft 11, an electrode 21 mounted at the tip of the manipulating shaft 11 and a pressing member 31 arranged on the manipulating shaft 11 apart by a prescribed distance L1 from the electrode 21. The tool is constituted so that the tip 22 part of the electrode 21 is brought into contact with an optional portion (p1) of a concave part (B2) of the sheet metal (B) and temporarily welded to the contacted part (p1) and, in that state, the electrode 21 can be outward pulled and a portion (p2) near the welded part (p1) can be inward pressed with the pressing member 31. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、自動車のボディに代表される板金の凹みを補修する方法及び当該補修に使用する板金引出し工具に関する。   The present invention relates to a method of repairing a dent of a sheet metal represented by a body of an automobile and a sheet metal drawing tool used for the repair.

本体等が板金で作られた工業製品は多いが、かかる板金に凹みが発生することがある。例えば、自動車のボディに衝突事故などによって局部的に凹みが発生してしまうことがある。   Although there are many industrial products whose main body is made of sheet metal, dents may occur in such sheet metal. For example, a dent may occur locally in a car body due to a collision accident or the like.

自動車のボディに発生した凹みを補修するには、まず、当該凹み部分を板金引出し工具を用いて外側へ引出して正常面(凹みが発生しない前の面)に近い形状にする(形状修復作業)。   In order to repair a dent generated in the body of an automobile, first, the dent part is pulled out to the outside using a sheet metal drawing tool so that the shape is close to the normal surface (the surface before the dent is generated) (shape repair work). .

ここで、板金引出し工具80として、図11に示すように、操作軸81と、この操作軸81の先端に装着され先端部分が尖っていて溶接機の電源部(図示省略)から電流が供給される電極82と、操作軸81に打撃を加えるハンマー83とを備えたものが提案されている(例えば、特許文献1参照)。この工具80の電極82の先端部分を自動車ボディBの凹み部分B2の任意の部位に接触させ、当該接触部分を仮溶着させる。その状態で、上記接触部分が溶着されている間に、操作軸81にハンマー83で外側へ打撃を加えて当該凹み部分B2を外側へ引っ張り出していた。   Here, as a sheet metal drawing tool 80, as shown in FIG. 11, an electric current is supplied from an operating shaft 81 and a power supply unit (not shown) of the welding machine which is attached to the distal end of the operating shaft 81 and has a pointed tip. There has been proposed an electrode 82 and a hammer 83 that strikes the operation shaft 81 (see, for example, Patent Document 1). The tip portion of the electrode 82 of the tool 80 is brought into contact with an arbitrary portion of the recessed portion B2 of the automobile body B, and the contact portion is temporarily welded. In this state, while the contact portion was welded, the operation shaft 81 was hit outward with a hammer 83 to pull out the recessed portion B2 outward.

自動車ボディの外板パネルのうち組織が伸びきってしまった部分を補修する場合には、上記形状修復作業をする前に凹み部分全体を酸素ガスバーナやカーボン絞り棒などで高温に加熱した後に急速に冷却して当該部分の絞り作業性を高めていた。   When repairing a part of the outer panel of an automobile body where the tissue has been fully stretched, the entire recessed part is rapidly heated to a high temperature with an oxygen gas burner or carbon squeezing bar before performing the above-mentioned shape repair work. The squeezing workability of the part was improved by cooling.

このような形状修復作業を終えた後に、当該復元された面(B2)の凹凸を無くして平滑な面とするために、パテを塗り込んで硬化させ、しかる後に余分なパテを紙ヤスリ等で除去して平滑な表面を削り出し(いわゆるパテ塗り・削り出し作業)、その上から塗料を塗って仕上げていた。
特開平11−90533号公報
After finishing such shape restoration work, in order to eliminate the unevenness of the restored surface (B2) and make it a smooth surface, the putty is applied and cured, and then the extra putty is removed with a paper file or the like The smooth surface was removed and the surface was smoothed (so-called putty and shaving), and the paint was applied on top of it to finish.
JP-A-11-90533

ところで、現在では、省エネルギ化(燃料の節約)を図るために、自動車ボディは薄くても丈夫な高張力鋼版(または超高張力鋼版)製とされているのが一般的であるが、これらの高張力鋼版類は熱に弱く、そのため上記したように凹み部分全体を高温加熱・急速冷却して当該部分の絞り作業性を高めた状態で形状修復作業ができない。すなわち、高張力鋼版類の自動車ボディの凹み部分を高温加熱すると、当該部分の組織が壊されてしまい強度が甚だしく低下してしまう(いわゆる腰のない(張りのない)状態になってしまう)。   By the way, at present, in order to save energy (saving fuel), the automobile body is generally made of a high-strength steel plate (or ultra-high-strength steel plate) that is thin but strong. These high-strength steel plates are vulnerable to heat. Therefore, as described above, the shape cannot be restored in a state where the entire recessed portion is heated and rapidly cooled to improve the drawing workability of the portion. That is, when a high-temperature heating is performed on a concave portion of an automobile body of a high-strength steel plate, the structure of the portion is broken and the strength is drastically reduced (so-called waistless (no tension) state). .

そのため、ボディが高張力鋼版類でできている自動車ボディの補修する場合、凹み部分の高温加熱処理ができないので、凹み部分の面積の占める割合が多い場合には形状修復に大変な手間が掛かったり、パテを厚塗りして削り出さなければならずパテ塗り・削り出し作業に手間がかかる。凹み部分が大きい場合には、部品(例えばドア部分)ごと交換してしまうことも多くなっている。   Therefore, when repairing an automobile body whose body is made of high-strength steel plates, high-temperature heat treatment cannot be performed on the indented portion, so it takes a lot of trouble to restore the shape if the area occupied by the indented portion is large. In other words, it is necessary to apply a thick coat of the putty and cut it off, which takes time and effort for the putty coating and cutting process. When the dent portion is large, the parts (for example, door portions) are often replaced.

本発明の目的は、高張力鋼版類の板金であっても引っ張り出し後に張りをなくすることなく簡単かつ迅速に修復でき、かつ、パテ塗り・削り出し作業が簡単に行えるようになる板金引出し工具及び板金の補修方法を提供することにある。   It is an object of the present invention to provide a sheet metal drawer that can be easily and quickly repaired without losing tension even after being pulled out, and can be easily putted and scraped out even if it is a sheet metal of high-strength steel plates. It is in providing the repair method of a tool and a sheet metal.

請求項1の発明は、板金の凹み部分を外側へ引出した後にパテ塗り・削り出し作業を行いその上から塗料を塗って仕上げる板金の補修に使用される板金引出し工具であって、操作軸と、この操作軸の先端に固定されていて先端部分が尖っており電流が供給される電極と、当該操作軸に当該電極から所定距離離れて配設されるとともに先端部が尖っている押圧用部材とを備え、当該電極の先端部分を前記板金の凹み部分の任意の部位に接触させ当該接触部分に仮溶着させ、その状態で当該操作軸を外側へ引っ張り可能かつ当該押圧用部材で当該溶着部分の近くの部位を内側に押し込み可能なものである。   The invention of claim 1 is a sheet metal drawing tool for use in repairing a sheet metal which is subjected to putty coating and scraping work after the recessed portion of the sheet metal is pulled out and then coated with a paint, and is finished. An electrode that is fixed to the tip of the operation shaft and has a pointed tip and is supplied with current; and a pressing member that is disposed on the operation shaft at a predetermined distance from the electrode and has a pointed tip. The tip portion of the electrode is brought into contact with an arbitrary portion of the recessed portion of the sheet metal and temporarily welded to the contact portion, and the operation shaft can be pulled outward in this state, and the welding portion can be pulled by the pressing member. The part near can be pushed inward.

請求項2の発明は、板金の凹み部分を外側へ引出した後にパテ塗り・削り出し作業を行いその上から塗料を塗って仕上げる板金の補修方法であって、前記パテ塗り・削り出し作業の前に、操作軸に固定された電極の尖った先端部分を前記板金の凹み部分の任意の部位に接触させ当該接触部分に仮溶着させ、その状態で当該操作軸を外側へ引っ張るとともに当該押圧用部材で当該溶着部分の近くの部位を内側に押し込んで当該凹み部分を局部的に凹凸を付けながら正常面近くまで引っ張り出すことを特徴とする。   The invention of claim 2 is a method of repairing a sheet metal by performing a putty coating / cutting operation after drawing out a recessed portion of the sheet metal to the outside, and then applying a paint from the top, and before the putty coating / cutting operation In addition, the pointed tip portion of the electrode fixed to the operation shaft is brought into contact with an arbitrary portion of the recessed portion of the sheet metal, and is temporarily welded to the contact portion. In this state, the operation shaft is pulled outward and the pressing member Then, a portion near the welded portion is pushed inward, and the recessed portion is pulled out to the vicinity of the normal surface while locally uneven.

上記した本発明の場合、板金の凹み部分の任意の部位に電極を仮に溶着(電気溶着)し、その状態で当該電極を外側へ引っ張って当該電極と溶着した凹み部分の部位を正常面近くまで引っ張り出するとともに、当該電極を支点として押圧用部材で溶着部分の近くの部位を内側に押し込んで局部的に凹ませることができる。この押圧用部材の押し込みに伴い電極と溶着した凹み部分の部位は局部的に外側に引っ張り出される。   In the case of the present invention described above, an electrode is temporarily welded (electrically welded) to an arbitrary portion of the recessed portion of the sheet metal, and in this state, the electrode is pulled outward to bring the portion of the recessed portion welded to the electrode to near the normal surface. In addition to pulling out, a portion near the welded portion can be pushed inward with the pressing member using the electrode as a fulcrum to be recessed locally. As the pressing member is pushed in, the portion of the recessed portion welded to the electrode is locally pulled out.

このような引っ張り出し作業を板金の凹み部分の多数の部位で行えば、板金の凹み部分を多数の局部的な凹凸を付けながら正常面近くまで引っ張りだせる。このようにすれば、板金の凹み部分が塑性変形してしまって正常面であったころよりも延びてしまった長さを上記多数の凹凸で吸収できる。また、上記形状修復部分は多数の凹凸のおかげで外力が掛かっても撓みにくい形状となる。したがって、高張力鋼版類の板金であっても凹み部分を引っ張り出し後に張りをなくすることなく形状を簡単かつ迅速に修復できる。このことにより、後工程であるパテ塗り・削り出し作業(さらには塗装作業)が簡単に行えるようになる。   If such a pulling-out operation is performed at a large number of portions of the recessed portion of the sheet metal, the recessed portion of the sheet metal can be pulled close to the normal surface while adding a number of local irregularities. If it does in this way, the length which extended rather than the roller which the dent part of the sheet metal deformed plastically and was a normal surface can be absorbed by the above-mentioned many unevenness. In addition, the shape repair portion has a shape that is difficult to bend even when an external force is applied due to a large number of irregularities. Therefore, even if it is a sheet metal of high-strength steel plates, the shape can be easily and quickly restored without removing the tension after pulling out the recessed portion. This makes it possible to easily perform post-putting and shaving operations (and painting operations), which are subsequent processes.

本発明によれば、高張力鋼版類の板金であっても引っ張り出し後に張りをなくすることなく簡単かつ迅速に修復でき、かつ、パテ塗り・削り出し作業が簡単に行えるようになる。   According to the present invention, even a high-strength steel sheet metal can be repaired easily and quickly without losing tension after being pulled out, and putty coating and shaving can be easily performed.

以下、本発明の実施の形態を図面を参照しながら説明する。   Embodiments of the present invention will be described below with reference to the drawings.

本発明の板金引出し工具1は、図1および図3に示すように、板金(B)の凹み部分(B2)を外側へ引出した後にパテ塗り・削り出し作業を行いその上から塗料を塗って仕上げる板金の補修に使用される工具であって、操作軸11と、この操作軸11の先端に装着された電極21と、当該操作軸11に当該電極21から所定距離L1だけ離れて配設された押圧用部材31とを備え、当該電極21の先端22部分を板金(B)の凹み部分(B2)の任意の部位(p1)に接触させ当該接触部分(p1)を仮溶着させ、当該接触部分(p1)が溶着されている間に当該押圧用部材31で当該溶着部分(p1)の近くの部位(p2)を内側に押し込みながら当該電極21を外側へ引っ張り可能な構成とされている。   As shown in FIG. 1 and FIG. 3, the sheet metal drawing tool 1 of the present invention performs a putty coating and scraping operation after drawing the recessed portion (B2) of the sheet metal (B) to the outside, and paints the paint. A tool used for repairing a sheet metal to be finished, which is provided with an operation shaft 11, an electrode 21 attached to the tip of the operation shaft 11, and a predetermined distance L1 away from the electrode 21 on the operation shaft 11. The pressing member 31 and the tip 22 portion of the electrode 21 is brought into contact with an arbitrary portion (p1) of the recessed portion (B2) of the sheet metal (B), and the contact portion (p1) is temporarily welded, While the portion (p1) is welded, the pressing member 31 can pull the electrode 21 outward while pushing the portion (p2) near the welded portion (p1) inward.

この実施形態では、板金として、自動車(B)のボディ(B1)が選定されている。   In this embodiment, the body (B1) of the automobile (B) is selected as the sheet metal.

上記操作軸11は、アルミニウム合金や鉄鋼等の導電性材料で形成されており、その先端には電極21が装着されている。電極21は、図1に示すように、先端部分22が円錐形状とされて尖っており、ケーブルを介して溶接機の電源部(この実施形態では、正極)に接続されている。この電極21には、溶接機の電源部から設定した時間だけ電流が供給されるものとされている。また、溶接機の電源部の負極には、ケーブルを介して自動車ボディ(B)が接続されている。なお、操作軸11を非導電性材料で形成してもよい。また、操作軸11の後端には合成樹脂製の把持部15が設けられている。上記ケーブルおよび溶接機は、図示を省略する。この実施形態では、電極21は、図2(A)に示すように、雄ねじ部23を有しており、当該雄ねじ部23を操作軸11の雌ねじ部12に螺合させることにより装着される構成とされている。   The operation shaft 11 is made of a conductive material such as an aluminum alloy or steel, and an electrode 21 is attached to the tip thereof. As shown in FIG. 1, the tip 21 of the electrode 21 has a conical shape and is sharp, and is connected to a power supply unit (a positive electrode in this embodiment) of a welding machine via a cable. A current is supplied to the electrode 21 for a set time from the power supply unit of the welding machine. In addition, the automobile body (B) is connected to the negative electrode of the power supply unit of the welding machine via a cable. Note that the operation shaft 11 may be formed of a non-conductive material. A synthetic resin gripping portion 15 is provided at the rear end of the operation shaft 11. The cable and welder are not shown. In this embodiment, as shown in FIG. 2A, the electrode 21 has a male screw portion 23 and is mounted by screwing the male screw portion 23 into the female screw portion 12 of the operation shaft 11. It is said that.

上記操作軸11には、押圧用部材31が電極21から所定距離L1だけ離れるように配設されている。この押圧用部材31は、図2(A),(B)に示すように、操作軸11に保持された取付本体部32と、この取付本体部32に設けられた押圧軸33とから成り、当該押圧軸33の先端部分は円錐形状とされており尖っている。この実施形態では、押圧用部材31は、その先端部分34と電極21の先端部分22との間の距離L1は10mmで両先端部分(34,22)の水平レベルは同一とされている。なお、押圧用部材31は、金属製とされている。この押圧用部材33は、図2(A)に示すように、電極21と操作軸31とに挟まれるようにして装着される。   A pressing member 31 is disposed on the operation shaft 11 so as to be separated from the electrode 21 by a predetermined distance L1. As shown in FIGS. 2A and 2B, the pressing member 31 includes an attachment main body 32 held by the operation shaft 11 and a pressing shaft 33 provided on the attachment main body 32. The tip portion of the pressing shaft 33 has a conical shape and is sharp. In this embodiment, the pressing member 31 has a distance L1 between its tip portion 34 and the tip portion 22 of the electrode 21 of 10 mm, and the horizontal levels of both tip portions (34, 22) are the same. The pressing member 31 is made of metal. The pressing member 33 is mounted so as to be sandwiched between the electrode 21 and the operation shaft 31 as shown in FIG.

次に、上記板金引出し工具1を用いての自動車ボディBの凹み部分B2の補修について説明する。   Next, repair of the recessed part B2 of the automobile body B using the sheet metal drawing tool 1 will be described.

(1).まず、自動車ボディBの凹み部分B2を当該ボディBの表面側(外面側)に引き出す。   (1). First, the recessed portion B2 of the automobile body B is pulled out to the surface side (outer surface side) of the body B.

それには、図3に示すように、上記板金引出し工具1の操作軸11を手動操作して、電極21の先端部分22を自動車ボディBの凹み部分B2の任意の部位(p1)に接触させ当該接触部位(p1)を仮溶着させる。そして、電極21が上記接触部位(p1)と溶着している間に、図4中矢印で示すように、操作軸11を外方へ引っ張って当該凹み部分B2を正常面(凹む前の面)近くまで変位させ、その状態で電極21を支点としながら図5中2点鎖線で示すように操作軸11を揺動させて、押圧用部材31の先端部分34を当該凹み部分B2内の表面部位(p2)に押し付ける。そして、更に操作軸11を操作して押圧用部材31で上記表面部位(p2)を内側に押し込みながら電極21を外側へ引っ張る。これにより、図6に示すように、自動車ボディBの凹み部分B2内の或る範囲に凹凸(r)が付く。このような抉る操作を何回もすることにより、自動車ボディBの凹み部分B2に局部的に凹凸(r)が付いたところで、操作軸11を何回か首振り運動させて電極21とボディBとの溶着状態を解除して当該電極21をボディBから離す。   For this purpose, as shown in FIG. 3, the operating shaft 11 of the sheet metal drawing tool 1 is manually operated to bring the tip portion 22 of the electrode 21 into contact with an arbitrary portion (p1) of the recessed portion B2 of the automobile body B. A contact site (p1) is temporarily welded. Then, while the electrode 21 is welded to the contact portion (p1), as shown by an arrow in FIG. 4, the operating shaft 11 is pulled outward to bring the recessed portion B2 into a normal surface (surface before being recessed). In this state, the operating shaft 11 is swung as shown by a two-dot chain line in FIG. 5 while using the electrode 21 as a fulcrum, and the tip portion 34 of the pressing member 31 is moved to the surface portion in the recessed portion B2. Press against (p2). Then, the operation shaft 11 is further operated, and the electrode 21 is pulled outward while the surface portion (p2) is pushed inward by the pressing member 31. Thereby, as shown in FIG. 6, a certain range in the recessed part B2 of the motor vehicle body B becomes uneven | corrugated (r). By repeatedly performing such a turning operation, when the concave portion B2 of the automobile body B is locally uneven (r), the operation shaft 11 is swung several times to cause the electrode 21 and the body B to move. And the electrode 21 is separated from the body B.

上記操作を自動車ボディBの凹み部分B2の多くの部位で行うことによって、図7に示すように、当該凹み部分B2を多数の凹凸(r)を付けながら正常面近くまで引っ張り出す。このようにすれば、図8に示すように、自動車ボディBの凹み部分B2が正常面〔同図(A)では2点鎖線で図示〕よりも延びてしまった長さLを上記多数の凹凸(r)で吸収できる。すなわち、図8(B)に示すように、ボディ凹み部分B2の多数の凹凸(r)の表面に沿った長さ(e,f,g,h,‥‥の総和)が上記距離Lと同等かそれ以上となる。また、ボディ凹み部分B2は、多数の凹凸(r)が形成されているので外力が掛かっても撓みにくい。したがって、自動車ボディBの凹み部分B2を引っ張り出し後に張りをなくすることなく形状を修復できる。   By performing the above operation at many parts of the recessed part B2 of the automobile body B, as shown in FIG. 7, the recessed part B2 is pulled out to the vicinity of the normal surface with a large number of irregularities (r). In this way, as shown in FIG. 8, the length L of the concave portion B2 of the automobile body B extending from the normal surface (shown by a two-dot chain line in FIG. It can be absorbed by (r). That is, as shown in FIG. 8 (B), the length (total of e, f, g, h,...) Along the surface of the many irregularities (r) of the body recessed portion B2 is equal to the distance L. Or more. In addition, since the body recess portion B2 has a large number of irregularities (r), it is difficult to bend even when an external force is applied. Therefore, the shape can be restored without removing the tension after pulling out the recessed portion B2 of the automobile body B.

なお、図9に示すように、自動車ボディBの凹み部分B2の縁の部分が図中上方に凸することがあるが、このような場合には、凸部分(p2)近くの凹み部分(p1)に電極21の先端22を仮溶着させ、当該凸部分(p2)に押圧用部材31の先端部分が当たるように操作軸11をセットして、上記したような抉る操作をすればよい。   In addition, as shown in FIG. 9, the edge part of the recessed part B2 of the vehicle body B may protrude upward in the figure, but in such a case, the recessed part (p1) near the protruding part (p2). ), The tip 22 of the electrode 21 is temporarily welded, and the operation shaft 11 is set so that the tip of the pressing member 31 comes into contact with the convex portion (p2).

(2).上記操作で形状が修復された自動車ボディ部分(B2)にパテを塗り込む。パテが乾燥して硬化したら、当該パテ部分の余分なパテを紙ヤスリ等で削り取って平滑な面を作り出す。このパテ塗り・削り出し作業をすることによって、上記した自動車ボディBの修復部分(B2)の多数の凹凸(r)もパテによって隠れる。なお、凹凸(r)があることによって、パテの食付きもよくなる。この自動車ボディBの修復部分(B2)は、上記したように元のように凹むことはないので、パテを厚塗り等して当該凹みを解消させる必要はない。したがって、パテ塗り・削り出し作業を簡単に行える。   (2). Putty is applied to the automobile body part (B2) whose shape has been restored by the above operation. When the putty dries and hardens, the excess putty of the putty part is scraped off with a paper file or the like to create a smooth surface. By performing this putty coating and shaving operation, a large number of irregularities (r) of the restoration part (B2) of the automobile body B described above are also hidden by the putty. In addition, with the unevenness (r), the bite of the putty is improved. Since the restoration portion (B2) of the automobile body B does not dent as described above, it is not necessary to thicken the putty to eliminate the dent. Therefore, putty coating and shaving can be performed easily.

(3).パテ塗り・削り出し作業をした自動車ボディ部分(B2)に塗料を塗って仕上げをする。こうして補修された自動車ボディ部分(B2)は外力が掛かっても凹みにくいので見栄えも良い。   (3). The paint is applied to the car body part (B2) that has been putty-painted and shaved. The car body part (B2) thus repaired is good in appearance because it is difficult to dent even if an external force is applied.

なお、上記実施形態では、押圧用部材31を1つ設けたが、これに限定されず、複数個(たとえば、2個,3個,4個)でもよいことは勿論である。図10に、押圧用部材31を3個設けた場合を図示する(図中、電極21の後の押圧用部材31は図示を省略した)。この場合に、電極21を3個の押圧用部材31に対して軸線方向(図10中上下方向)に移動可能に設けてもよい。また、電極21と押圧用部材31とを一体に設けてもよい。   In the above embodiment, one pressing member 31 is provided. However, the present invention is not limited to this, and it is needless to say that a plurality (for example, two, three, four) may be used. FIG. 10 illustrates a case where three pressing members 31 are provided (in the drawing, the pressing member 31 after the electrode 21 is not shown). In this case, the electrode 21 may be provided so as to be movable in the axial direction (vertical direction in FIG. 10) with respect to the three pressing members 31. Further, the electrode 21 and the pressing member 31 may be provided integrally.

また、図11に、電極21を1個有するとともに押圧用部材31を2個有するピストル型の板金引出し工具1を図示する。なお、電極21および押圧用部材31は、図11〜図10に示す電極21および押圧用部材31と同様構成である。   FIG. 11 shows a pistol-type sheet metal drawing tool 1 having one electrode 21 and two pressing members 31. The electrode 21 and the pressing member 31 have the same configuration as the electrode 21 and the pressing member 31 shown in FIGS.

かかる板金引出し工具1は、先端部に電極21が固定され後端部に把持部45が設けられた操作軸11を有している。操作軸11には、移動部材41を介して2本の押圧用部材31が当該操作軸41の縦軸線Yの伸延方向に平行に設けられている。   The sheet metal drawing tool 1 has an operation shaft 11 in which an electrode 21 is fixed at a front end portion and a gripping portion 45 is provided at a rear end portion. On the operation shaft 11, two pressing members 31 are provided in parallel to the extending direction of the longitudinal axis Y of the operation shaft 41 via the moving member 41.

移動部材41は、操作軸11の縦軸線Yを中心としての回動はせずに当該縦軸線Yに沿った方向にのみ移動するように設けられている。移動部材41の内側端面41bと操作軸11の鍔部43との間にはスプリング42が縮設されており、当該移動部材41は把持部45へ向けて付勢されている。把持部45には、回転支持部46を介して引き金部47が回動可能に装着されている。この引き金部47の先端部47aは移動部材41の外側端面41aに当接しており、当該引き金部47の後端部47bと把持部45との間には戻しスプリング48が設けられている。   The moving member 41 is provided so as to move only in the direction along the vertical axis Y without rotating about the vertical axis Y of the operation shaft 11. A spring 42 is contracted between the inner end surface 41 b of the moving member 41 and the flange portion 43 of the operation shaft 11, and the moving member 41 is biased toward the grip portion 45. A trigger portion 47 is rotatably attached to the grip portion 45 via a rotation support portion 46. A front end portion 47 a of the trigger portion 47 is in contact with the outer end surface 41 a of the moving member 41, and a return spring 48 is provided between the rear end portion 47 b of the trigger portion 47 and the grip portion 45.

ここで、図11において、作業者(図示省略)が電極21に電流を流して自動車ボディBの凹み部分に仮溶着して正常面近くまで引っ張った後に、引き金部47の後端部47bに指を掛け矢印F方向に回動操作すれば、当該引き金部47の先端部47aは移動部材41の外側端面47aを押圧し、スプリング42の弾性力に抗しながら当該移動部材41を介して2本の押圧用部材31を自動車ボディBが内側へ凹む方向(矢印E方向)に移動させる。   Here, in FIG. 11, an operator (not shown) applies an electric current to the electrode 21 to temporarily weld it to the recessed portion of the automobile body B and pull it to the vicinity of the normal surface, and then applies a finger to the rear end portion 47 b of the trigger portion 47. And the tip end portion 47a of the trigger portion 47 presses the outer end surface 47a of the moving member 41 and resists the elastic force of the spring 42 via the moving member 41. The pressing member 31 is moved in the direction in which the automobile body B is recessed inward (arrow E direction).

この操作により、図12に示すように自動車ボディBには上記した場合と同様に凹凸が形成される。したがって、上記した場合と同様に、自動車ボディBの凹み部分を多数の局部的な凹凸を付けながら正常面近くまで引っ張りだせる。このようにすれば、自動車ボディBの凹み部分が塑性変形してしまって正常面であったころよりも延びてしまった長さを上記多数の凹凸で吸収できる。また、上記形状修復部分は多数の凹凸のおかげで外力が掛かっても撓みにくい形状となる。したがって、高張力鋼版類の板金であっても凹み部分を引っ張り出し後に張りをなくすることなく形状を簡単かつ迅速に修復できる。このことにより、後工程であるパテ塗り・削り出し作業(さらには塗装作業)が簡単に行えるようになる。この場合にも、押圧用部材は2個に限らず、任意に設定できる。また、電極の個数も1個に限らず、複数個でもよい。   By this operation, as shown in FIG. 12, unevenness is formed in the automobile body B in the same manner as described above. Therefore, as in the case described above, the recessed portion of the automobile body B can be pulled out to the vicinity of the normal surface while adding a number of local irregularities. If it does in this way, the length which the dent part of the motor vehicle body B was plastically deformed and extended rather than the roller which was a normal surface can be absorbed by the said many unevenness | corrugations. In addition, the shape repair portion has a shape that is difficult to bend even when an external force is applied due to a large number of irregularities. Therefore, even if it is a sheet metal of high-strength steel plates, the shape can be easily and quickly restored without removing the tension after pulling out the recessed portion. This makes it possible to easily perform post-putting and shaving operations (and painting operations), which are subsequent processes. Also in this case, the number of pressing members is not limited to two and can be arbitrarily set. Further, the number of electrodes is not limited to one, and may be plural.

また、押圧用部材31の先端部分を尖らせたが、これに限定されず、例えば刃先形状のように線状に板金に接触する形状としてもよい。   Moreover, although the front-end | tip part of the member 31 for pressing was sharpened, it is not limited to this, For example, it is good also as a shape which contacts a sheet metal like a cutting edge shape.

本発明に係る板金引出し工具を説明するための図である。It is a figure for demonstrating the sheet metal drawing tool which concerns on this invention. 板金引出し工具の電極と押圧用部材を説明するための図である。It is a figure for demonstrating the electrode and pressing member of a sheet metal drawing tool. 本発明に係る板金引出し工具を用いての板金補修方法を説明するための図(1)である。It is a figure (1) for demonstrating the sheet metal repair method using the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具を用いての板金補修方法を説明するための図(2)である。It is a figure (2) for demonstrating the sheet metal repair method using the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具を用いての板金補修方法を説明するための図(3)である。It is a figure (3) for demonstrating the sheet metal repair method using the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具を用いての板金補修方法を説明するための図(4)である。It is a figure (4) for demonstrating the sheet metal repair method using the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具を用いての板金補修方法を説明するための図(5)である。It is a figure (5) for demonstrating the sheet metal repair method using the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具を用いての板金補修方法を説明するための図(6)である。It is a figure (6) for demonstrating the sheet metal repair method using the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具を用いての板金補修方法を説明するための図(7)である。It is a figure (7) for demonstrating the sheet metal repair method using the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具の変形例を説明するための図である。It is a figure for demonstrating the modification of the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具の変形例を説明するための図である。It is a figure for demonstrating the modification of the sheet metal drawing tool which concerns on this invention. 本発明に係る板金引出し工具の変形例を説明するための図である。It is a figure for demonstrating the modification of the sheet metal drawing tool which concerns on this invention. 従来の板金引出し工具を説明するための図である。It is a figure for demonstrating the conventional sheet metal drawing tool.

符号の説明Explanation of symbols

1 板金引出し工具
11 操作軸
12 雌ねじ部
15 把持部
21 電極
22 先端部分
23 雄ねじ部
31 押圧用部材
32 取付本体部
33 押圧軸
34 先端部分
41 移動部材
41a 移動部材の外側端面
41b 移動部材の内側端面
42 スプリング
43 操作軸の鍔部
45 把持部
46 回転支持部
47 引き金部
47a 引き金部の先端部
47b 引き金部の後端面
48 戻しスプリング
DESCRIPTION OF SYMBOLS 1 Sheet metal drawing tool 11 Operation shaft 12 Female thread part 15 Holding part 21 Electrode 22 Tip part 23 Male thread part 31 Pressing member 32 Mounting main body part 33 Pressing shaft 34 Tip part 41 Moving member 41a Moving member outer end surface 41b Moving member inner end surface 42 Spring 43 Operating shaft collar 45 Gripping part 46 Rotation support part 47 Trigger part 47a Trigger part tip part 47b Trigger part rear end surface 48 Return spring

Claims (2)

板金の凹み部分を外側へ引出した後にパテ塗り・削り出し作業を行いその上から塗料を塗って仕上げる板金の補修に使用される板金引出し工具であって、
操作軸と、この操作軸の先端に固定されていて先端部分が尖っており電流が供給される電極と、当該操作軸に当該電極から所定距離離れて配設されるとともに先端部が尖っている押圧用部材とを備え、当該電極の先端部分を前記板金の凹み部分の任意の部位に接触させ当該接触部分に仮溶着させ、その状態で当該操作軸を外側へ引っ張り可能かつ当該押圧用部材で当該溶着部分の近くの部位を内側に押し込み可能な板金引出し工具。
It is a sheet metal drawing tool used for repairing a sheet metal that is finished by applying paint and scraping work after drawing out the recessed part of the sheet metal to the outside,
An operation shaft, an electrode that is fixed to the tip of the operation shaft, has a sharp tip, is supplied with current, and is disposed on the operation shaft at a predetermined distance from the electrode and has a sharp tip. A pressing member, the tip portion of the electrode is brought into contact with an arbitrary portion of the recessed portion of the sheet metal and temporarily welded to the contact portion, and in this state, the operation shaft can be pulled outward and the pressing member A sheet metal drawing tool capable of pushing a portion near the welded portion inward.
板金の凹み部分を外側へ引出した後にパテ塗り・削り出し作業を行いその上から塗料を塗って仕上げる板金の補修方法であって、
前記パテ塗り・削り出し作業の前に、操作軸に固定された電極の尖った先端部分を前記板金の凹み部分の任意の部位に接触させ当該接触部分に仮溶着させ、その状態で当該操作軸を外側へ引っ張るとともに当該押圧用部材で当該溶着部分の近くの部位を内側に押し込んで当該凹み部分を局部的に凹凸を付けながら正常面近くまで引っ張り出すことを特徴とする板金の補修方法。
A method of repairing a sheet metal, which is performed by putting out and scraping the sheet metal after drawing out the recessed part of the sheet metal and applying paint from the top.
Prior to the putty coating and shaving operation, the pointed tip portion of the electrode fixed to the operation shaft is brought into contact with an arbitrary portion of the recessed portion of the sheet metal and temporarily welded to the contact portion, and in this state, the operation shaft A method of repairing a sheet metal, characterized in that a portion near the welded portion is pushed inward with the pressing member, and the recessed portion is pulled out to the vicinity of a normal surface while being locally uneven.
JP2007133568A 2007-05-20 2007-05-20 Tool for pulling out sheet metal and method of repairing sheet metal Pending JP2008284593A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007133568A JP2008284593A (en) 2007-05-20 2007-05-20 Tool for pulling out sheet metal and method of repairing sheet metal

Publications (1)

Publication Number Publication Date
JP2008284593A true JP2008284593A (en) 2008-11-27

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JP2007133568A Pending JP2008284593A (en) 2007-05-20 2007-05-20 Tool for pulling out sheet metal and method of repairing sheet metal

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014161914A (en) * 2013-02-25 2014-09-08 Star:Kk Bit welding gun

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014161914A (en) * 2013-02-25 2014-09-08 Star:Kk Bit welding gun

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