JP3399806B2 - Manufacturing method of positioning jig for automotive panel member - Google Patents
Manufacturing method of positioning jig for automotive panel memberInfo
- Publication number
- JP3399806B2 JP3399806B2 JP26886597A JP26886597A JP3399806B2 JP 3399806 B2 JP3399806 B2 JP 3399806B2 JP 26886597 A JP26886597 A JP 26886597A JP 26886597 A JP26886597 A JP 26886597A JP 3399806 B2 JP3399806 B2 JP 3399806B2
- Authority
- JP
- Japan
- Prior art keywords
- panel member
- positioning jig
- tank body
- base
- reference pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Jigs For Machine Tools (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、自動車のドアパネ
ルなどの自動車用パネル部材を水平状態に位置決めして
ロボットなどで溶接する際に用いる自動車用パネル部材
の位置決め冶具の製造方法に関する。
【０００２】
【従来の技術】この種の位置決め冶具は図２に示すよう
に、複数本の型鋼２ａを枠状に組合わせた土台の上に、
軟鉄板からなるクラウン２ｂを固定して水平な基盤２を
構成している。基盤２ないしクラウン２ｂの上面には碁
盤目状に番線（図示せず）が罫書きされ、この番線を基
準として基盤２上面の所定位置に複数のイケール４がボ
ルト止めにて立設されている。そして各イケール４の上
端にクランプ受６とクランプ８または受け金１０と基準
ピン１２が取付けられている。クランプ８は流体圧シリ
ンダ１４によって開閉可能とされ、クランプ８とクラン
プ受６との間に自動車用パネル部材１６の周縁部を上下
方向から挟持できるようになっている。また基準ピン１
２は自動車用パネル部材１６の周縁部の内側領域の複数
箇所に形成された基準孔に嵌合可能とされている。
【０００３】
【発明が解決しようとする課題】以上のように構成され
た位置決め冶具は、基盤２の上にイケール４、クランプ
受６，１０、クランプ８および基準ピン１２を積上げ的
に連結しているために、基盤２上面の平面加工精度と各
部材の寸法精度ないし組付け精度が、最終的な自動車用
パネル部材１６の位置決め精度として累積的に影響する
構造となっている。
【０００４】このため、位置決め冶具の設計に当っては
各部材の寸法誤差や組付け誤差ができるだけ生じないよ
うな設計が要求されることは勿論のこと、位置決め冶具
を組み上げた状態での最終的な組付け誤差が許容範囲内
に収まるように、各部材の許容寸法誤差を割り振ってい
かなければならない。また、各部材の加工は細心の注意
をもって行なう必要があるし、基盤２に対する番線の罫
書きやイケール取付用の多数のタップ孔形成にも多くの
手間がかかる。さらに、このようにして組付けた位置決
め冶具の精度が実際に許容範囲内にあるか否かを確認す
るための測定試験も不可欠である。
【０００５】本発明の目的は、前述のような設計、加工
および組付け上の手間を大幅に低減可能な自動車用パネ
ル部材の位置決め冶具の製造方法を提供することにあ
る。
【０００６】
【課題を解決するための手段】前記課題を解決するため
本発明の自動車用パネル部材の位置決め冶具の製造方法
は、自動車用パネル部材を基盤の上方所定高さ位置にほ
ぼ水平にした状態で、前記自動車用パネル部材の周縁部
を前記基盤上に立設したクランプ手段で挟持すると共
に、前記自動車用パネル部材の周縁部の内側領域に形成
した基準孔に前記基盤上に立設した基準ピンの上端部を
嵌合させるようにした自動車用パネル部材の位置決め冶
具において、上端開口を有する槽体の底面に磁気吸着力
を作用させる工程と、前記自動車用パネル部材と同形の
モデルパネル部材に、前記クランプ手段と基準ピンを位
置決め時と同じ位置に仮固定する工程と、前記モデルパ
ネル部材に仮固定した前記クランプ手段と基準ピンの各
下端部を、前記槽体の底面に着座させ前記磁気吸着力に
より固定する工程と、前記槽体内に溶融樹脂を充填し固
化させることにより前記基盤を構成する工程とを有す
る。
【０００７】このような位置決め冶具の製造方法によれ
ば、モデルパネル部材に仮固定したクランプ手段と基準
ピンの相対的位置関係が、そのまま完成品としての位置
決め冶具での最終的相対位置関係となるから、部材の加
工誤差や組付け誤差が自動車用パネル部材の位置決め精
度と無関係になり、位置決め冶具の設計、加工および組
付けなどの各工程で寸法に関係した各種作業が大幅に簡
略化される。
【０００８】
【発明の実施の形態】以下、本発明の一実施形態を図１
に基づいて説明する。図１は本発明に係る位置決め冶具
を製造する際の１つの工程を示す。同図で２０は上端が
開放された鋼製箱状の槽体であって、この槽体２０は電
磁チャック２２の水平面Ｆ上に水平に設置されている。
槽体２０内底面上には複数本の受け金２４が載置され、
この受け金２４の上端部にクランプ手段Ｃと基準ピン１
２が固定されている。そして、位置決めしようとする自
動車用パネル部材と同形のモデルパネル部材１６ａの周
縁部の所定複数個所に、クランプ手段Ｃのクランプ受６
が点溶接にて仮固定され、周縁部内側領域の複数箇所に
形成した基準孔に基準ピン１２が嵌合され点溶接にて仮
固定されている。また受け金２４の下端部には槽体２０
内底面と面当接する座部２６が形成され、この座部２６
に電磁チャック２２の磁気吸着力が作用して受け金２４
が垂直に固定されるようになっている。
【０００９】ここでクランプ手段Ｃとは、図２のように
クランプ受６、クランプ８および流体圧シリンダ１４を
含むものであって、図１ではクランプ受６のみ示し、ク
ランプ８と流体圧シリンダ１４は省略している。
【００１０】次に、位置決め冶具の製造工程について説
明する。鋼製箱状の槽体２０を電磁チャックの水平面Ｆ
上に載せ、位置決めしようとする自動車用パネル部材と
同形のモデルパネル部材１６ａの周縁部の所定複数個所
にクランプ手段Ｃのクランプ受６を仮固定すると共に、
周縁部の内側領域の所定複数箇所の基準孔に基準ピン１
２の上端部を仮固定する。この仮固定は、数箇所の点溶
接など後で容易に分離可能な固定方法であればよい。こ
のようにクランプ手段Ｃと基準ピン１２を仮固定したモ
デルパネル部材１６ａを、受け金２４を下にして槽体２
０内底面上に載置する。受け金２４の下端部の座部２６
を槽体２０内底面の所定位置にすべて着座させた後、電
磁チャック２２に通電して磁気吸着力によって座部２６
を槽体２０内底面所定位置に固定する。
【００１１】最後に、槽体２０内に溶融樹脂２８を流し
込み、溶融樹脂２８を自然に冷却固化させ、その後モデ
ルパネル部材１６ａを取外して位置決め冶具の製造を完
了する。溶融樹脂２８は受け金２４の位置が変化しない
ように、冷却固化した後も寸法変化ができるだけ小さい
ものが好ましい。また、溶融樹脂２８を流し込む時に受
け金２４が樹脂２８の流れで動かされないように、粘性
の少ない樹脂が好ましい。このような樹脂としては例え
ばポリウレタン系樹脂が好適である。樹脂２８が完全に
冷却して固化すると、モデルパネル部材１６ａを各クラ
ンプ受６および基準ピン１２から分離させて位置決め冶
具の製造を終了する。なお、溶融樹脂の充填量は、クラ
ンプ受６や基準ピン１２の下方に溶接ガンを入れるため
の最低限の空間を確保できる程度を上限として行なう。
【００１２】以上、電磁チャック２２を使用した本発明
の一実施形態につき説明したが、本発明は前記実施形態
に限定されることなく種々の変形が可能である。
【００１３】
【発明の効果】本発明は前述の如く、モデルパネル部材
にクランプ手段と基準ピンを仮固定した状態でクランプ
手段と基準ピンの下端部を電磁吸着力で槽体の底面に固
定するようにしたので、クランプ手段と基準ピンの相対
的位置関係が、そのまま完成品の位置決め冶具での最終
的位置関係となるから、部材の加工誤差や組付け誤差が
自動車用パネル部材の位置決め精度に影響することがな
くなり、位置決め冶具の設計、加工および組付けなどの
各工程で寸法に関係した煩雑な各種作業が大幅に簡略化
される。BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention is an automotive panel member used when positions the automotive panel member, such as automobile door panels in a horizontal position welding such as a robot < The present invention relates to a method for manufacturing a positioning jig. 2. Description of the Related Art As shown in FIG. 2, a positioning jig of this kind is mounted on a base in which a plurality of mold steels 2a are combined in a frame shape.
A horizontal base 2 is formed by fixing a crown 2b made of a soft iron plate. A number line (not shown) is scribed in a grid pattern on the upper surface of the base 2 or the crown 2b, and a plurality of scales 4 are erected at predetermined positions on the upper surface of the base 2 with bolts based on this number line. . The clamp receiver 6 and the clamp 8 or the receiving metal 10 and the reference pin 12 are attached to the upper end of each scale 4. The clamp 8 can be opened and closed by a fluid pressure cylinder 14, so that the periphery of the vehicle panel member 16 can be sandwiched between the clamp 8 and the clamp receiver 6 from above and below. Also, reference pin 1
Reference numeral 2 is adapted to be fitted into reference holes formed at a plurality of locations in the inner region of the peripheral portion of the vehicle panel member 16. [0003] The positioning jig configured as described above is constructed by connecting the scale 4, the clamp receivers 6, 10, the clamps 8, and the reference pins 12 on the base 2 in a stacking manner. to have, foundation 2 top surface machining accuracy and dimensional accuracy or assembly accuracy of each member, the final automotive
The structure is such that the positioning accuracy of the panel member 16 is cumulatively affected. [0004] For this reason, in designing the positioning jig, it is of course required to design such that a dimensional error and an assembling error of each member do not occur as much as possible. The permissible dimensional errors of each member must be allocated so that the proper assembling error falls within the permissible range. In addition, it is necessary to meticulously process each member, and it takes a lot of trouble to scribe a line on the base 2 and to form a large number of tapped holes for mounting a scale. Further, a measurement test for confirming whether or not the accuracy of the positioning jig thus assembled is actually within an allowable range is indispensable. SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle panel which can greatly reduce the above-mentioned design, processing and assembly labor.
It is an object of the present invention to provide a method for manufacturing a positioning jig for a screw member . [0006] In order to solve the above-mentioned problems, a method of manufacturing a positioning jig for a vehicle panel member according to the present invention comprises placing the vehicle panel member substantially horizontally at a predetermined height above a base. In this state, the peripheral portion of the vehicle panel member was clamped by clamp means provided on the base, and was erected on the base in a reference hole formed in an inner region of the peripheral portion of the vehicle panel member . the positioning jig automotive panel member which is adapted to fit the upper portion of the reference pin, a step of reacting magnetic attraction force on the bottom of the tank having a top opening, the model panel member of the automotive panel member isomorphous A step of temporarily fixing the clamp means and the reference pin at the same position as at the time of positioning; and a step of temporarily fixing the clamp means and the reference pin temporarily fixed to the model panel member. A step of seating the base on the bottom surface of the tank body and fixing the base by the magnetic attraction force, and a step of filling the molten resin into the tank body and solidifying the base to constitute the base. According to such a manufacturing method of the positioning jig, the relative positional relationship between the clamp means temporarily fixed to the model panel member and the reference pin becomes the final relative positional relationship of the finished positioning jig as it is. As a result, the processing errors and assembly errors of the members become independent of the positioning accuracy of the automotive panel members , and various operations related to dimensions in each process such as the design, processing and assembly of the positioning jig are greatly simplified. . FIG. 1 shows an embodiment of the present invention.
It will be described based on. FIG. 1 shows one step in manufacturing the positioning jig according to the present invention. In the figure, reference numeral 20 denotes a steel box-shaped tank body whose upper end is opened, and this tank body 20 is installed horizontally on a horizontal plane F of the electromagnetic chuck 22.
A plurality of receivers 24 are placed on the bottom surface inside the tank body 20,
The clamp means C and the reference pin 1
2 is fixed. And the self
At a plurality of predetermined positions on the periphery of the model panel member 16a having the same shape as the vehicle panel member , the clamp receiver 6 of the clamping means C is provided.
Are temporarily fixed by spot welding, reference pins 12 are fitted into reference holes formed at a plurality of locations in the inner region of the peripheral portion, and temporarily fixed by spot welding. Further, a tank body 20 is provided at the lower end of the receiving metal 24.
A seat 26 is formed in surface contact with the inner bottom surface.
The magnetic chucking force of the electromagnetic chuck 22 acts on the
Are fixed vertically. Here, the clamp means C includes the clamp receiver 6, the clamp 8 and the hydraulic cylinder 14 as shown in FIG. 2. Only the clamp receiver 6 is shown in FIG. Is omitted. Next, the manufacturing process of the positioning jig will be described. The steel box-shaped tank 20 is placed on the horizontal surface F of the electromagnetic chuck.
The clamp receiver 6 of the clamping means C is temporarily fixed at a plurality of predetermined positions on the peripheral edge of the model panel member 16a having the same shape as the vehicle panel member to be placed and positioned.
Reference pins 1 are inserted into a plurality of predetermined reference holes in the inner region of the peripheral portion.
Temporarily fix the upper end of 2. This temporary fixing may be any fixing method that can be easily separated later such as spot welding at several places. The model panel member 16a, to which the clamping means C and the reference pin 12 are temporarily fixed in this way, is placed on the tank body 2 with the receiving metal 24 down.
Place on the inner bottom surface. Seat 26 at the lower end of catch 24
Is seated at a predetermined position on the bottom surface of the tank body 20, and then the electromagnetic chuck 22 is energized so that the seat 26
Is fixed at a predetermined position on the bottom surface inside the tank body 20. Finally, the molten resin 28 is poured into the tank 20, and the molten resin 28 is naturally cooled and solidified. Thereafter, the model panel member 16a is removed to complete the manufacture of the positioning jig. It is preferable that the molten resin 28 has as small a dimensional change as possible after cooling and solidification so that the position of the receiving metal 24 does not change. Further, a resin having low viscosity is preferable so that the receiving metal 24 is not moved by the flow of the resin 28 when the molten resin 28 is poured. As such a resin, for example, a polyurethane resin is preferable. When the resin 28 is completely cooled and solidified, the model panel member 16a is separated from the clamp receivers 6 and the reference pins 12, and the production of the positioning jig is completed. The upper limit of the filling amount of the molten resin is such that a minimum space for inserting the welding gun below the clamp receiver 6 and the reference pin 12 can be secured. As described above, one embodiment of the present invention using the electromagnetic chuck 22 has been described. However, the present invention is not limited to the above embodiment, and various modifications are possible. As described above, according to the present invention, the lower end portions of the clamp means and the reference pin are fixed to the bottom surface of the tank body by electromagnetic attraction while the clamp means and the reference pin are temporarily fixed to the model panel member. As a result, the relative positional relationship between the clamping means and the reference pin becomes the final positional relationship in the positioning jig of the finished product without any change.
The positioning accuracy of the automobile panel member is not affected, and various complicated operations related to dimensions are greatly simplified in each step of designing, processing, and assembling the positioning jig.
【図面の簡単な説明】
【図１】本発明に係る自動車用パネル部材の位置決め冶
具の製造工程の１つを示す側面図。
【図２】従来の自動車用パネル部材の位置決め冶具の断
面図。
【符号の説明】
１６ａ モデルパネル部材
２０ 槽体
２２ 電磁チャック
２４ 受け金
２６ 座部
Ｃ クランプ手段
Ｆ 水平面BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing one of manufacturing steps of a positioning jig for an automobile panel member according to the present invention. FIG. 2 is a sectional view of a conventional positioning jig for a panel member for an automobile . [Description of Signs] 16a Model panel member 20 Tank body 22 Electromagnetic chuck 24 Receptacle 26 Seat C Clamping means F Horizontal plane
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B23Q 3/00 B23Q 3/18 B23K 37/04 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B23Q 3/00 B23Q 3/18 B23K 37/04
Claims (1)
さ位置にほぼ水平にした状態で、前記自動車用パネル部
材の周縁部を前記基盤上に立設したクランプ手段で挟持
すると共に、前記自動車用パネル部材の周縁部の内側領
域に形成した基準孔に前記基盤上に立設した基準ピンの
上端部を嵌合させるようにした自動車用パネル部材の位
置決め冶具において、上端開口を有する槽体の底面に磁
気吸着力を作用させる工程と、前記自動車用パネル部材
と同形のモデルパネル部材に、前記クランプ手段と基準
ピンを位置決め時と同じ位置に仮固定する工程と、前記
モデルパネル部材に仮固定した前記クランプ手段と基準
ピンの各下端部を、前記槽体の底面に着座させ前記磁気
吸着力により固定する工程と、前記槽体内に溶融樹脂を
充填し固化させることにより前記基盤を構成する工程と
を有することを特徴とする自動車用パネル部材の位置決
め冶具の製造方法。(57) With the substantially horizontally Patent ranging claimed is: 1. A motor vehicle panel members upwardly a predetermined height position of the substrate, the automotive panel portion
The periphery of the material is clamped by the clamp means provided on the base, and the upper end of a reference pin provided on the base is fitted into a reference hole formed in an inner region of the periphery of the vehicle panel member. In a positioning jig for an automobile panel member adapted to be combined, a step of applying a magnetic attraction force to a bottom surface of a tank body having an upper end opening, and a model panel member having the same shape as the automobile panel member, Temporarily fixing the clamp means and the reference pin at the same position as at the time of positioning, and lowering each of the lower ends of the clamp means and the reference pin temporarily fixed to the model panel member on the bottom surface of the tank body, thereby obtaining the magnetic attraction force. and fixing, the manufacture of the positioning jig automotive panel member characterized by a step of forming the base by solidifying filling molten resin into said tank body Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26886597A JP3399806B2 (en) | 1997-10-01 | 1997-10-01 | Manufacturing method of positioning jig for automotive panel member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26886597A JP3399806B2 (en) | 1997-10-01 | 1997-10-01 | Manufacturing method of positioning jig for automotive panel member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11104930A JPH11104930A (en) | 1999-04-20 |
| JP3399806B2 true JP3399806B2 (en) | 2003-04-21 |
Family
ID=17464344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26886597A Expired - Fee Related JP3399806B2 (en) | 1997-10-01 | 1997-10-01 | Manufacturing method of positioning jig for automotive panel member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3399806B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20105582A0 (en) | 2010-05-25 | 2010-05-25 | Kaarinan Robottileikkaus Oy | Fastening device, arrangement and method for attaching an object to be processed on a machining base |
| CN106312409A (en) * | 2016-10-10 | 2017-01-11 | 周峰 | Adjustable automobile door welding holder |
| CN109226990B (en) * | 2018-10-23 | 2021-07-16 | 中建钢构广东有限公司 | Process method for welding embedded part by using welding robot |
| CN109366220B (en) * | 2018-12-07 | 2020-11-06 | 上海大学 | Workpiece positioning method and system |
| CN113909951A (en) * | 2021-11-18 | 2022-01-11 | 包头北奔重汽桥箱有限公司 | Heavy truck drive axle final drive casing assembly adds clamping apparatus |
| CN117840683A (en) * | 2024-03-07 | 2024-04-09 | 中建五局第三建设有限公司 | Welding positioning device for special-shaped steel structure |
-
1997
- 1997-10-01 JP JP26886597A patent/JP3399806B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11104930A (en) | 1999-04-20 |
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