JP2003290865A - Method for deciding pressurizing force of self-piercing rivet - Google Patents

Method for deciding pressurizing force of self-piercing rivet

Info

Publication number
JP2003290865A
JP2003290865A JP2002094455A JP2002094455A JP2003290865A JP 2003290865 A JP2003290865 A JP 2003290865A JP 2002094455 A JP2002094455 A JP 2002094455A JP 2002094455 A JP2002094455 A JP 2002094455A JP 2003290865 A JP2003290865 A JP 2003290865A
Authority
JP
Japan
Prior art keywords
self
marking
piercing rivet
pressing force
limit value
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.)
Granted
Application number
JP2002094455A
Other languages
Japanese (ja)
Other versions
JP3979575B2 (en
Inventor
Shuichiro Iwatsuki
修一郎 岩月
Masa Fujita
雅 藤田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2002094455A priority Critical patent/JP3979575B2/en
Publication of JP2003290865A publication Critical patent/JP2003290865A/en
Application granted granted Critical
Publication of JP3979575B2 publication Critical patent/JP3979575B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B21C51/005—Marking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for deciding pressurizing force of a self-piercing rivet, a method in which the force can be decided as too much or too little objectively and simply in all parts to be caulked. <P>SOLUTION: On the ring-shaped pressure receiving face D1 of a die D, there are formed the lower limit marking S1, the optimum marking S2 and the upper limit marking S3 which are transferred on a lower panel by pressurizing force of not less than the lower limit, the middle optimum and the upper limit respectively in the range of the proper pressurizing force of the self-piercing rivet. If a marking to be transferred is only the lower limit marking S1, the pressurizing force is decided to lie between the lower limit and the optimum. If the marking to be transferred is the lower limit marking S1 and the optimum marking S2, the pressurizing force is decided to lie between the optimum and the upper limit. If the marking to be transferred is the lower limit marking S1, the optimum marking S2 and the upper limit marking S3, the pressurizing force is decided to lie above the upper limit. If no marking is transferred, the pressurizing force is decided to lie below the lower limit. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、複数の板材をセル
フピアッシングリベットにより相互にカシメ付ける際の
加圧力の過不足を判定するセルフピアッシングリベット
の加圧力判定方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-piercing rivet pressing force determination method for determining whether a plurality of plate members are crimped to each other by self-piercing rivets.

【０００２】[0002]

【従来の技術】複数の板材を重ねてカシメ付ける方法と
して、ダイとポンチとを有する締結装置により被締結板
材にセルフピアッシングリベットを打ち込む方法が知ら
れている（特表平８−５０５０８７号公報参照）。この
方法によれば、図９に示すように、被締結板材としての
アッパパネルＵＰを貫通したセルフピアッシングリベッ
トＳＰＲの脚部Ｌの先端がロアパネルＬＰの内側に留ま
って径方向に拡がり、ロアパネルＬＰの裏面側にはボタ
ン状の膨出部Ｂが形成される。このように、セルフピア
ッシングリベットＳＰＲによるカシメ付け構造では、ロ
アパネルＬＰの裏面側に孔が開かないため、良好な外観
およびシール性が得られる。2. Description of the Related Art As a method for stacking and crimping a plurality of plate materials, there is known a method of driving a self-piercing rivet into a plate material to be fastened by a fastening device having a die and a punch (see Japanese Patent Publication No. 8-505087). ). According to this method, as shown in FIG. 9, the tip of the leg portion L of the self-piercing rivet SPR penetrating the upper panel UP as the plate material to be fastened stays inside the lower panel LP and spreads out in the radial direction, and the rear surface of the lower panel LP. A button-shaped bulge B is formed on the side. As described above, in the crimping structure using the self-piercing rivet SPR, since no hole is formed on the back surface side of the lower panel LP, good appearance and sealing performance can be obtained.

【０００３】このようなセルフピアッシングリベットＳ
ＰＲによるカシメ付け方法においては、前記締結装置の
ポンチによるセルフピアッシングリベットＳＰＲの頭部
Ｈへの加圧力に過不足があると、セルフピアッシングリ
ベットＳＰＲの脚部Ｌの径方向への拡がり量が増減し、
その結果、アッパパネルＵＰとロアパネルＬＰとのカシ
メ力にバラツキが生じる。また、ロアパネルＬＰに付着
したプレス用のオイルがダイの受圧面であるキャビティ
凹部Ｄ２内に運び込まれて溜まると、アッパパネルＵＰ
とロアパネルＬＰの材質や板厚の組み合せによっては、
両者を適正にカシメ付けることができない場合もある。Such a self-piercing rivet S
In the crimping method using PR, if the pressure applied to the head H of the self-piercing rivet SPR by the punch of the fastening device is excessive or insufficient, the amount of radial expansion of the leg L of the self-piercing rivet SPR increases or decreases. Then
As a result, the caulking force between the upper panel UP and the lower panel LP varies. Further, when the pressing oil attached to the lower panel LP is carried and accumulated in the cavity recess D2 which is the pressure receiving surface of the die, the upper panel UP
Depending on the combination of material and plate thickness of the lower panel LP,
In some cases, they cannot be caulked properly.

【０００４】そこで、アッパパネルＵＰとロアパネルＬ
Ｐとのカシメ力を一定化するため、従来においては、セ
ルフピアッシングリベットＳＰＲの打ち込み状態を観察
してセルフピアッシングリベットＳＰＲへの加圧力の過
不足を判定していた。すなわち、セルフピアッシングリ
ベットＳＰＲの頭部ＨがアッパパネルＵＰの表面から浮
き上がっているか否かを観察し、ロアパネルＬＰの裏面
に形成されるボタン状の膨出部Ｂの径および高さを比較
観察してセルフピアッシングリベットＳＰＲへの加圧力
の過不足を判定していた。Therefore, the upper panel UP and the lower panel L
In order to make the crimping force with P constant, in the past, the driving state of the self-piercing rivet SPR was observed to determine whether the pressure applied to the self-piercing rivet SPR was excessive or insufficient. That is, it is observed whether or not the head H of the self-piercing rivet SPR is lifted from the surface of the upper panel UP, and the diameter and height of the button-shaped bulge B formed on the back surface of the lower panel LP are compared and observed. The self-piercing rivet SPR was judged to be excessive or insufficient.

【０００５】[0005]

【発明が解決しようとする課題】ところで、前記のボタ
ン状の膨出部Ｂは、角が丸いために径および高さを特定
するのが難しく、膨出部Ｂの径および高さの観察結果に
は観察者によるバラツキが見られる。従って、セルフピ
アッシングリベットＳＰＲの打ち込み状態の観察結果に
よりその加圧力の過不足を判定する方法には、客観性に
欠け、信頼性が低いという問題がある。By the way, since the button-shaped bulging portion B has rounded corners, it is difficult to specify its diameter and height, and the observation result of the diameter and height of the bulging portion B is shown. There are variations due to the observer. Therefore, the method of determining the excess or deficiency of the pressing force based on the observation result of the driving state of the self-piercing rivet SPR has a problem that the objectivity is low and the reliability is low.

【０００６】もっとも、セルフピアッシングリベットＳ
ＰＲによるカシメ付け部分を抜き取り検査により切断し
てそのカット面を観察すれば、セルフピアッシングリベ
ットＳＰＲの加圧力の過不足をより客観的に判定するこ
とができるが、この場合には、切断作業などの手間が大
幅に掛かると共に、全てのカシメ付け箇所を検査するこ
とはできないという問題がある。However, the self-piercing rivet S
If the portion to be crimped by the PR is cut and the cut surface is observed and the cut surface is observed, it is possible to more objectively judge whether the self-piercing rivet SPR has an excessive or insufficient pressurizing force. There is a problem in that it takes a lot of time and it is impossible to inspect all the caulking points.

【０００７】そこで、本発明は、全てのカシメ付け部分
においてセルフピアッシングリベットの加圧力の過不足
を客観的に、かつ簡単に判定することができるセルフピ
アッシングリベットの加圧力判定方法を提供することを
課題とする。Therefore, the present invention provides a method for determining the pressure applied to a self-piercing rivet, which can objectively and easily determine whether the pressure applied to the self-piercing rivet is excessive or insufficient in all the caulking portions. It is an issue.

【０００８】[0008]

【課題を解決するための手段】前記の課題を解決するた
めの手段として、第１の発明に係るセルフピアッシング
リベットの加圧力判定方法は、ダイとポンチとの間で被
締結板材にセルフピアッシングリベットを打ち込んで前
記被締結板材を相互にカシメ付けるに当たり、前記ダイ
の受圧面に予め形成しておいた刻印が前記被締結板材に
転写される度合に応じてセルフピアッシングリベットの
加圧力の大小を判定することを特徴とする。As a means for solving the above-mentioned problems, a method for determining a pressing force of a self-piercing rivet according to the first invention is a self-piercing rivet for a plate material to be fastened between a die and a punch. When pressing the plate members to be fastened to each other, the magnitude of the pressing force of the self-piercing rivet is determined according to the degree to which the stamp formed in advance on the pressure receiving surface of the die is transferred to the plate member to be fastened. It is characterized by doing.

【０００９】第１の発明に係るセルフピアッシングリベ
ットの加圧力判定方法では、被締結板材への刻印の転写
度合が観察者により目視観察される。そして、刻印の転
写度合が大きいほどセルフピアッシングリベットの加圧
力が大きく、刻印の転写度合が小さいほどセルフピアッ
シングリベットの加圧力が小さいものと客観的に判定さ
れる。In the self-piercing rivet pressing force determination method according to the first aspect of the invention, the degree of transfer of the marking to the plate to be fastened is visually observed by the observer. Then, it is objectively determined that the larger the degree of transfer of the marking is, the larger the pressing force of the self-piercing rivet is, and the smaller the degree of transfer of the marking is, the smaller the pressing force of the self-piercing rivet is.

【００１０】第２の発明に係るセルフピアッシングリベ
ットの加圧力判定方法は、第１の発明に係る加圧力判定
方法であって、前記ダイには、その受圧面のキャビティ
凹部に溜まるオイルの逃げ孔または逃げ溝を形成してお
き、この逃げ孔または逃げ溝の端部を前記受圧面に開口
させて前記刻印を構成したことを特徴とする。A method for determining a pressing force of a self-piercing rivet according to a second aspect of the present invention is the method for determining a pressing force according to the first aspect of the present invention, wherein the die has an escape hole for oil accumulated in a cavity concave portion of its pressure receiving surface. Alternatively, an escape groove is formed in advance, and an end portion of the escape hole or the escape groove is opened to the pressure receiving surface to form the marking.

【００１１】第２の発明に係るセルフピアッシングリベ
ットの加圧力判定方法では、オイルの逃げ孔または逃げ
溝の端部の開口による刻印の被締結板材への転写度合が
大きいほどセルフピアッシングリベットの加圧力が大き
く、刻印の転写度合が小さいほどセルフピアッシングリ
ベットの加圧力が小さいものと客観的に判定される。In the method of determining the pressing force of the self-piercing rivet according to the second aspect of the present invention, the larger the degree of transfer of the marking to the plate material to be fastened by the opening of the oil escape hole or the end of the escape groove, the larger the pressing force of the self-piercing rivet. Is larger and the degree of transfer of the marking is smaller, it is objectively determined that the pressing force of the self-piercing rivet is smaller.

【００１２】第３の発明に係るセルフピアッシングリベ
ットの加圧力判定方法は、セルフピアッシングリベット
の適正加圧力範囲の下限値以上の加圧力、中間の適正値
以上の加圧力、上限値以上の加圧力でそれぞれ被締結板
材に転写される下限値刻印、適正値刻印および上限値刻
印を前記ダイに形成しておくことを特徴とする。According to a third aspect of the present invention, there is provided a self-piercing rivet pressing force determination method, which is a pressing force above a lower limit value of a proper pressing force range of a self-piercing rivet, a pressing force above an intermediate appropriate value, or a pressing force above an upper limit value. The lower limit value stamp, the proper value stamp and the upper limit value stamp, which are respectively transferred to the plate material to be fastened, are formed on the die.

【００１３】第３の発明に係るセルフピアッシングリベ
ットの加圧力判定方法では、被締結板材への下限値刻
印、適正値刻印および上限値刻印の転写度合が観察者に
より目視観察される。そして、被締結板材に転写された
刻印が下限値刻印のみである場合には、セルフピアッシ
ングリベットの加圧力が下限値と適正値との間にあると
判定され、前記刻印が下限値刻印および適正値刻印であ
る場合には、前記加圧力が適正値と上限値との間にある
と判定される。一方、前記刻印が下限値刻印、適正値刻
印および上限値刻印である場合には、前記加圧力が上限
値を超えていると判定され、何れの刻印も転写されてい
ない場合には、前記加圧力が下限値に満たないと判定さ
れる。In the method for determining the pressing force of the self-piercing rivet according to the third aspect of the invention, the degree of transfer of the lower limit value marking, the appropriate value marking and the upper limit value marking to the plate to be fastened is visually observed by the observer. Then, when the marking transferred to the plate material to be fastened is only the lower limit value marking, it is determined that the pressing force of the self-piercing rivet is between the lower limit value and the proper value, and the marking is the lower limit value marking and the proper value. In the case of a value stamp, it is determined that the pressing force is between the proper value and the upper limit value. On the other hand, when the markings are the lower limit value marking, the appropriate value marking and the upper limit marking, it is determined that the pressing force exceeds the upper limit value, and when none of the markings is transferred, the adding marking is performed. It is determined that the pressure is below the lower limit.

【００１４】[0014]

【発明の実施の形態】以下、図面を参照して本発明に係
るセルフピアッシングリベットの加圧力判定方法の実施
の形態を説明する。参照する図面において、図１は本発
明のセルフピアッシングリベットの加圧力判定方法に使
用する締結装置の斜視図、図２は図１に示したセルフピ
アッシングリベットによりカシメ付けられたアッパパネ
ルおよびロアパネルの断面図、図３は本発明の第１実施
形態に係るセルフピアッシングリベットの加圧力判定方
法に使用するダイの斜視図である。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a method for determining a pressing force of a self-piercing rivet according to the present invention will be described below with reference to the drawings. In the drawings to be referred to, FIG. 1 is a perspective view of a fastening device used in a method for determining a pressing force of a self-piercing rivet according to the present invention, and FIG. 2 is a cross-sectional view of an upper panel and a lower panel crimped by the self-piercing rivet shown in FIG. FIG. 3 is a perspective view of a die used in the method for determining the pressing force of the self-piercing rivet according to the first embodiment of the present invention.

【００１５】第１実施形態のセルフピアッシングリベッ
トの加圧力判定方法は、図１に示す締結装置１のダイＤ
とポンチＰとの間で被締結板材として重ねられたアッパ
パネルＵＰおよびロアパネルＬＰに対し、図２に示すよ
うにセルフピアッシングリベットＳＰＲを打ち込んで両
者をカシメ付けるに当たり、セルフピアッシングリベッ
トＳＰＲの加圧力の大小を判定する方法である。The self-piercing rivet pressing force determination method of the first embodiment is the die D of the fastening device 1 shown in FIG.
As shown in FIG. 2, the self-piercing rivet SPR is driven into the upper panel UP and the lower panel LP, which are stacked as the plate members to be fastened between the punch P and the punch P, to crimp the two. Is a method of determining.

【００１６】前記ダイＤは、図３に拡大して示すよう
に、大径部の下部に小径部が連続した段付きの短円柱状
に形成されており、大径部の上端面には、図２に示した
ロアパネルＬＰの裏面に当接するリング状受圧面Ｄ１が
形成されている。また、リング状受圧面Ｄ１の内側に
は、図２に示したセルフピアッシングリベットＳＰＲの
打ち込みに応じてロアパネルＬＰおよびアッパパネルＵ
Ｐが塑性流動により流入するキャビティ凹部Ｄ２が形成
されている。そして、このキャビティ凹部Ｄ２の中央部
には、図２に示したセルフピアッシングリベットＳＰＲ
の脚部Ｌの先端部を径方向に押し広げるための***部Ｄ
３がなだらかな山形に形成されている。As shown in the enlarged view of FIG. 3, the die D is formed in a stepped short column shape in which a small diameter portion is continuously formed at the lower portion of the large diameter portion, and the upper end surface of the large diameter portion is A ring-shaped pressure receiving surface D1 that contacts the back surface of the lower panel LP shown in FIG. 2 is formed. Further, inside the ring-shaped pressure receiving surface D1, the lower panel LP and the upper panel U are driven according to the driving of the self-piercing rivet SPR shown in FIG.
A cavity recess D2 into which P flows by plastic flow is formed. The self-piercing rivet SPR shown in FIG. 2 is provided at the center of the cavity recess D2.
Ridge D for radially expanding the tip of the leg L of the
3 is formed in a gentle mountain shape.

【００１７】ここで、前記ダイＤの上端面のリング状受
圧面Ｄ１には、図２に示したポンチＰとの間で加圧され
るロアパネルＬＰの裏面に転写可能な刻印が形成されて
いる。この刻印は、図２に示したポンチＰによるセルフ
ピアッシングリベットＳＰＲの頭部Ｈへの加圧力の大小
に対応して、例えば、適正加圧力範囲の下限値以上の加
圧力、中間の適正値以上の加圧力、上限値以上の加圧力
でそれぞれロアパネルＬＰに転写される下限値刻印Ｓ
１、適正値刻印Ｓ２および上限値刻印Ｓ３が形成されて
いる。Here, the ring-shaped pressure receiving surface D1 on the upper end surface of the die D is formed with a stamp capable of being transferred to the back surface of the lower panel LP which is pressed against the punch P shown in FIG. . The marking corresponds to the magnitude of the pressure applied to the head H of the self-piercing rivet SPR by the punch P shown in FIG. 2, and is, for example, equal to or higher than the lower limit value of the appropriate pressure range, or equal to or higher than an intermediate appropriate value. And the lower limit marking S that is transferred to the lower panel LP by the pressing force of the
1, an appropriate value stamp S2 and an upper limit value stamp S3 are formed.

【００１８】前記下限値刻印Ｓ１、適正値刻印Ｓ２およ
び上限値刻印Ｓ３は、凸形状でもよいが、図示の例では
凹形状に形成されている。具体的には、下限値刻印Ｓ１
は三角形の凹部△に、適正値刻印Ｓ２は円形の凹部○
に、上限値刻印Ｓ３は四角形の凹部□にそれぞれ形成さ
れている。The lower limit value marking S1, the appropriate value marking S2, and the upper limit value marking S3 may have a convex shape, but they are formed in a concave shape in the illustrated example. Specifically, the lower limit marking S1
Indicates a triangular concave portion, and the appropriate value stamp S2 indicates a circular concave portion.
In addition, the upper limit value marking S3 is formed in each of the rectangular recesses □.

【００１９】ところで、前記凹形状の刻印は、開口部の
角部の丸みが小さく、開口幅が大きく、深さが浅いほど
底面形状がロアパネルＬＰに転写され易く、反対に開口
部の角部の丸みが大きく、開口幅が小さく、深さが深い
ほど底面形状がロアパネルＬＰに転写され難い傾向があ
る。そこで、図４の（ａ）に示すように、前記三角形の
凹部△からなる下限値刻印Ｓ１は、図４の（ｂ）に示す
円形の凹部○からなる適正値刻印Ｓ２に比較して、開口
部の角部の丸みを小さく、開口幅を大きく、深さを浅く
して形成されている。また、図４の（ｃ）に示すよう
に、前記四角形の凹部□からなる上限値刻印Ｓ３は、図
４の（ｂ）に示す円形の凹部○からなる適正値刻印Ｓ２
に比較して、開口部の角部の丸みを大きく、開口幅を小
さく、深さを深くして形成されている。By the way, in the concave marking, the smaller the roundness of the corner of the opening, the larger the opening width, and the shallower the depth, the easier the bottom surface shape is transferred to the lower panel LP. The larger the roundness, the smaller the opening width, and the deeper the depth, the more difficult it is for the bottom surface shape to be transferred to the lower panel LP. Therefore, as shown in FIG. 4A, the lower limit value marking S1 consisting of the triangular concave portion Δ is larger than the proper value marking S2 consisting of the circular concave portion ◯ shown in FIG. 4B. The corners of the portion are formed to have a small roundness, a large opening width, and a shallow depth. Further, as shown in FIG. 4 (c), the upper limit value marking S3 formed of the quadrangular concave portion □ is an appropriate value marking S2 formed of the circular concave portion ◯ shown in FIG. 4 (b).
Compared with the above, the roundness of the corner of the opening is made larger, the opening width is made smaller, and the depth is made deeper.

【００２０】次に、前記のようなダイＤの下限値刻印Ｓ
１、適正値刻印Ｓ２および上限値刻印Ｓ３を使用してセ
ルフピアッシングリベットＳＰＲの加圧力を判定する方
法を説明する。Next, the lower limit value marking S of the die D as described above
A method for determining the pressing force of the self-piercing rivet SPR by using 1, the appropriate value marking S2 and the upper limit value marking S3 will be described.

【００２１】まず、図１に示す締結装置１のポンチＰを
ダイＤ側へ押動してセルフピアッシングリベットＳＰＲ
をアッパパネルＵＰ側からロアパネルＬＰ側へ打ち込む
と、図２に示すように、セルフピアッシングリベットＳ
ＰＲの脚部ＬがアッパパネルＵＰからロアパネルＬＰへ
と喰い込み、セルフピアッシングリベットＳＰＲに押圧
されたロアパネルＬＰの一部がアッパパネルＵＰの一部
と共に塑性流動してダイＤのキャビティ凹部Ｄ２内に流
入する。そして、キャビティ凹部Ｄ２の中央部に形成さ
れた***部Ｄ３がロアパネルＬＰの一部をセルフピアッ
シングリベットＳＰＲの脚部Ｌの内側に押し込むことに
より、前記脚部Ｌの先端部が径方向に押し広げられる。
その結果、セルフピアッシングリベットＳＰＲの脚部Ｌ
の先端部はロアパネルＬＰを貫通することなくその内側
に留まる。First, the punch P of the fastening device 1 shown in FIG. 1 is pushed to the die D side to move the self-piercing rivet SPR.
When is driven from the upper panel UP side to the lower panel LP side, as shown in FIG.
The leg part L of PR bites into the lower panel LP from the upper panel UP, and a part of the lower panel LP pressed by the self-piercing rivet SPR plastically flows together with a part of the upper panel UP and flows into the cavity recess D2 of the die D. . Then, the raised portion D3 formed in the center of the cavity recess D2 pushes a part of the lower panel LP into the inside of the leg L of the self-piercing rivet SPR, so that the tip end of the leg L is expanded in the radial direction. To be
As a result, the self-piercing rivet SPR leg L
The tip end portion of the stays inside the lower panel LP without penetrating the lower panel LP.

【００２２】このような締結装置１による作業工程にお
いて、アッパパネルＵＰおよびロアパネルＬＰがダイＤ
とポンチＰとの間に挟み込まれて上下に加圧されること
により、ダイＤのリング状受圧面Ｄ１に形成された下限
値刻印Ｓ１、適正値刻印Ｓ２および上限値刻印Ｓ３がロ
アパネルＬＰの裏面に押圧される。そこで、第１実施形
態のセルフピアッシングリベットの加圧力判定方法で
は、ロアパネルＬＰの裏面に対する下限値刻印Ｓ１、適
正値刻印Ｓ２および上限値刻印Ｓ３の転写度合を目視観
察する。In the working process using the fastening device 1 as described above, the upper panel UP and the lower panel LP are dies D.
The lower limit mark S1, the proper value mark S2 and the upper limit mark S3 formed on the ring-shaped pressure receiving surface D1 of the die D are sandwiched between the punch P and the punch P and the upper and lower pressures are applied to the back surface of the lower panel LP. Is pressed by. Therefore, in the method for determining the pressing force of the self-piercing rivet of the first embodiment, the degree of transfer of the lower limit value marking S1, the appropriate value marking S2, and the upper limit value marking S3 to the back surface of the lower panel LP is visually observed.

【００２３】ここで、ロアパネルＬＰの裏面に転写され
た刻印が下限値刻印Ｓ１のみである場合、セルフピアッ
シングリベットＳＰＲの加圧力が下限値と適正値との間
にあると判定する。この判定に際しては、下限値刻印Ｓ
１の三角形の底面形状が良好に転写されているか否かを
ポイントに判定するとよい。また、転写された刻印が下
限値刻印Ｓ１および適正値刻印Ｓ２である場合、セルフ
ピアッシングリベットＳＰＲの加圧力が適正値と上限値
との間にあると判定する。一方、転写された刻印が下限
値刻印Ｓ１、適正値刻印Ｓ２および上限値刻印Ｓ３であ
る場合、セルフピアッシングリベットＳＰＲの加圧力が
上限値を超えていると判定する。また、下限値刻印Ｓ
１、適正値刻印Ｓ２および上限値刻印Ｓ３の何れも転写
されない場合、セルフピアッシングリベットＳＰＲの加
圧力が下限値に満たないものと判定する。Here, when the marking transferred to the back surface of the lower panel LP is only the lower limit value marking S1, it is determined that the pressing force of the self-piercing rivet SPR is between the lower limit value and the proper value. When making this determination, the lower limit marking S
It is preferable to determine whether or not the bottom surface shape of the triangle 1 is transferred well. When the transferred markings are the lower limit value marking S1 and the proper value marking S2, it is determined that the pressing force of the self-piercing rivet SPR is between the proper value and the upper limit value. On the other hand, when the transferred markings are the lower limit value marking S1, the appropriate value marking S2, and the upper limit value marking S3, it is determined that the pressing force of the self-piercing rivet SPR exceeds the upper limit value. Also, the lower limit marking S
1. If neither the proper value marking S2 nor the upper limit marking S3 is transferred, it is determined that the pressing force of the self-piercing rivet SPR is less than the lower limit.

【００２４】このように、第１実施形態のセルフピアッ
シングリベットの加圧力判定方法では、ロアパネルＬＰ
の裏面に対する下限値刻印Ｓ１、適正値刻印Ｓ２および
上限値刻印Ｓ３の転写の有無によりセルフピアッシング
リベットＳＰＲの加圧力を判定するため、セルフピアッ
シングリベットＳＰＲの加圧力の過不足を客観的に、か
つ簡単に判定することができる。また、下限値刻印Ｓ
１、適正値刻印Ｓ２および上限値刻印Ｓ３の転写の有無
を目視観察するだけで判定できるため、全てのカシメ付
け部分においてセルフピアッシングリベットＳＰＲの加
圧力の過不足を判定することができる。As described above, in the method for determining the applied pressure of the self-piercing rivet of the first embodiment, the lower panel LP
Since the pressing force of the self-piercing rivet SPR is determined by the presence / absence of transfer of the lower limit value stamp S1, the appropriate value stamp S2, and the upper limit value stamp S3 on the back surface of the self-piercing rivet SPR, It can be easily determined. Also, the lower limit marking S
1. Since the presence or absence of the transfer of the proper value marking S2 and the upper limit marking S3 can be determined only by visually observing, it is possible to determine whether the self-piercing rivet SPR is excessive or deficient in all the caulking portions.

【００２５】なお、第１実施形態のセルフピアッシング
リベットの加圧力判定方法に使用するダイＤの下限値刻
印Ｓ１、適正値刻印Ｓ２および上限値刻印Ｓ３は、適宜
の形状に変更することができる。例えば図５に示すよう
に、開口幅および深さが異なる３種類の溝をリング状受
圧面Ｄ１に形成して刻印としてもよい。この場合、開口
幅が最も広く、深さが最も浅い溝を下限値刻印Ｓ４と
し、開口幅が最も狭く、深さが最も深い溝を上限値刻印
Ｓ６とし、開口幅および深さが中位の溝を適正値刻印Ｓ
５とする。The lower limit value stamp S1, the appropriate value stamp S2, and the upper limit value stamp S3 of the die D used in the method for determining the pressing force of the self-piercing rivet of the first embodiment can be changed to appropriate shapes. For example, as shown in FIG. 5, three types of grooves having different opening widths and depths may be formed on the ring-shaped pressure receiving surface D1 to form a stamp. In this case, the groove having the widest opening width and the shallowest depth is set as the lower limit value marking S4, and the groove having the narrowest opening width and the deepest depth is set as the upper limit value marking S6. Engraved groove with appropriate value S
Set to 5.

【００２６】このような下限値刻印Ｓ４、適正値刻印Ｓ
５および上限値刻印Ｓ６を使用する場合においても、ロ
アパネルＬＰの裏面に対する下限値刻印Ｓ４、適正値刻
印Ｓ５および上限値刻印Ｓ６の転写の有無を目視観察す
ることにより、セルフピアッシングリベットＳＰＲの加
圧力の過不足を客観的に、かつ簡単に判定することがで
きる。なお、前記下限値刻印Ｓ４、適正値刻印Ｓ５およ
び上限値刻印Ｓ６を構成する各溝は、図１に示すロアパ
ネルＬＰに付着したプレス用のオイルが図５に示すキャ
ビティ凹部Ｄ２内に運び込まれて溜まった場合、その逃
げ溝としても機能する。The lower limit value marking S4 and the appropriate value marking S
5 and the upper limit value marking S6, the pressure applied to the self-piercing rivet SPR can be observed by visually observing whether the lower limit value marking S4, the proper value marking S5 and the upper limit value marking S6 are transferred to the back surface of the lower panel LP. The excess and deficiency of can be objectively and easily determined. The grooves forming the lower limit value stamp S4, the appropriate value stamp S5, and the upper limit value stamp S6 are formed by pressing oil attached to the lower panel LP shown in FIG. 1 being carried into the cavity recess D2 shown in FIG. If it collects, it also functions as an escape groove.

【００２７】続いて、第２実施形態のセルフピアッシン
グリベットの加圧力判定方法を説明する。このこの第２
実施形態のセルフピアッシングリベットの加圧力判定方
法においては、図６に示すようなダイＤを使用する。こ
のダイＤの受圧面であるキャビティ凹部Ｄ２には、図２
に示したロアパネルＬＰに付着したプレス用のオイルが
キャビティ凹部Ｄ２に溜まった場合、そのオイルをキャ
ビティ凹部Ｄ２の内部から逃がすための例えば３本の逃
げ溝Ｇ１，Ｇ２，Ｇ３を形成し、その上端部をリング状
受圧面Ｄ１の内周部に開口させて刻印を構成する。Next, the method for determining the applied pressure of the self-piercing rivet of the second embodiment will be described. This this second
In the self-piercing rivet pressing force determination method of the embodiment, a die D as shown in FIG. 6 is used. As shown in FIG.
When the pressing oil adhering to the lower panel LP shown in (1) is accumulated in the cavity recess D2, for example, three escape grooves G1, G2, G3 for letting the oil escape from the inside of the cavity recess D2 are formed, and the upper end thereof is formed. The portion is opened to the inner peripheral portion of the ring-shaped pressure receiving surface D1 to form a marking.

【００２８】前記３本の逃げ溝Ｇ１，Ｇ２，Ｇ３は、開
口幅および深さが異なる３種類とし、開口幅および深さ
が最も大きい逃げ溝Ｇ１の上端開口部を下限値刻印Ｓ７
とし、開口幅および深さが最も小さい逃げ溝Ｇ３の上端
開口部を上限値刻印Ｓ９とし、開口幅および深さが中位
の逃げ溝Ｇ２の上端開口部を適正値刻印Ｓ８として構成
する。The three escape grooves G1, G2, G3 are of three types having different opening widths and depths, and the upper end opening of the escape groove G1 having the largest opening width and depth is marked with a lower limit value S7.
The upper end opening of the clearance groove G3 having the smallest opening width and depth is configured as the upper limit value marking S9, and the upper end opening of the clearance groove G2 having the middle opening width and depth is configured as the appropriate value marking S8.

【００２９】このようなダイＤに形成された下限値刻印
Ｓ７、適正値刻印Ｓ８および上限値刻印Ｓ９を使用する
第２実施形態のセルフピアッシングリベットの加圧力判
定方法においても、ロアパネルＬＰの裏面に対する下限
値刻印Ｓ７、適正値刻印Ｓ８および上限値刻印Ｓ９の転
写の有無を目視観察することにより、セルフピアッシン
グリベットＳＰＲの加圧力の過不足を客観的に、かつ簡
単に判定することができる。加えて、ロアパネルＬＰに
付着してキャビティ凹部Ｄ２内に運び込まれたプレス用
のオイルは、図２に示すようにロアパネルＬＰの一部が
キャビティ凹部Ｄ２内に塑性流動して流入する際に、逃
げ溝Ｇ１，Ｇ２，Ｇ３を介してその上端開口部から押し
出されるため、セルフピアッシングリベットＳＰＲの打
ち込みに応じてロアパネルＬＰをキャビティ凹部Ｄ２内
に確実に塑性流動させ、アッパパネルＵＰおよびロアパ
ネルＬＰを確実にカシメ付けることができる。In the self-piercing rivet pressing force determination method of the second embodiment which uses the lower limit value stamp S7, the proper value stamp S8 and the upper limit value stamp S9 formed on the die D as described above, the lower panel LP is pressed against the back surface of the lower panel LP. By visually observing whether or not the lower limit value stamp S7, the appropriate value stamp S8, and the upper limit value stamp S9 are transferred, it is possible to objectively and easily determine whether the self-piercing rivet SPR has an excessive or insufficient pressure. In addition, the press oil that adheres to the lower panel LP and is carried into the cavity recess D2 escapes when a part of the lower panel LP plastically flows into the cavity recess D2 and flows in, as shown in FIG. Since it is pushed out from the upper end opening through the grooves G1, G2, G3, the lower panel LP is surely plastically flowed into the cavity concave portion D2 in response to the driving of the self-piercing rivet SPR, and the upper panel UP and the lower panel LP are securely swaged. Can be attached.

【００３０】なお、第２実施形態のセルフピアッシング
リベットの加圧力判定方法に使用するダイＤの下限値刻
印Ｓ７、適正値刻印Ｓ８および上限値刻印Ｓ９に代え、
例えば図７に示すように、ダイＤに形成したオイルの逃
げ孔Ｈ１，Ｈ２の上端部をキャビティ凹部Ｄ２の底面に
開口させて刻印を構成してもよい。この場合、開口径の
大きい逃げ孔Ｈ１の上端開口部を下限値刻印Ｓ１０と
し、開口径の小さい逃げ孔Ｈ２の上端開口部を上限値刻
印Ｓ１１とする。In place of the lower limit value marking S7, the appropriate value marking S8 and the upper limit value marking S9 of the die D used in the self-piercing rivet pressing force determination method of the second embodiment,
For example, as shown in FIG. 7, the stamps may be formed by opening the upper ends of the oil escape holes H1 and H2 formed in the die D to the bottom surface of the cavity recess D2. In this case, the upper end opening of the escape hole H1 having a large opening diameter is set as a lower limit value marking S10, and the upper end opening of the escape hole H2 having a small opening diameter is set as an upper limit value marking S11.

【００３１】このような下限値刻印Ｓ１０および上限値
刻印Ｓ１１を使用する場合においても、ロアパネルＬＰ
の裏面に対する下限値刻印Ｓ１０および上限値刻印Ｓ１
１の転写の有無を目視観察することにより、セルフピア
ッシングリベットＳＰＲの加圧力の過不足を客観的に、
かつ簡単に判定することができる。Even when such a lower limit value marking S10 and an upper limit value marking S11 are used, the lower panel LP
Lower limit marking S10 and upper limit marking S1 on the back surface of
By visually observing the presence / absence of transfer of No. 1, it is possible to objectively check whether the self-piercing rivet SPR is excessive or insufficient.
And it can be easily determined.

【００３２】なお、図１に示した締結装置１において、
アッパパネルＵＰおよびロアパネルＬＰの板厚に応じて
使用するダイＤとセルフピアッシングリベットＳＰＲと
の組み合わせを明確にするため、ダイＤのリング状受圧
面Ｄ１に形成する刻印に対応した刻印をセルフピアッシ
ングリベットＳＰＲの頭部Ｈに設けておくことができ
る。図８はその一例を示し、図８の（ａ）に示すよう
に、キャビティ凹部Ｄ２の浅いダイＤのリング状受圧面
Ｄ１にはセルフピアッシングリベットＳＰＲの加圧力を
判定するための四角形の刻印が形成され、このダイＤに
対応した脚部Ｌの短いセルフピアッシングリベットＳＰ
Ｒの頭部Ｈにも四角形の刻印が形成されている。また、
図８の（ｂ）に示すように、キャビティ凹部Ｄ２の深い
ダイＤのリング状受圧面Ｄ１にはセルフピアッシングリ
ベットＳＰＲの加圧力を判定するための円形の刻印が形
成され、このダイＤに対応した脚部Ｌの長いセルフピア
ッシングリベットＳＰＲの頭部Ｈにも円形の刻印が形成
されている。In the fastening device 1 shown in FIG. 1,
In order to clarify the combination of the die D and the self-piercing rivet SPR to be used according to the plate thickness of the upper panel UP and the lower panel LP, a marking corresponding to the marking formed on the ring-shaped pressure receiving surface D1 of the die D is self-piercing rivet SPR. Can be provided on the head H of the. FIG. 8 shows an example thereof, and as shown in FIG. 8 (a), a rectangular marking for determining the pressure of the self-piercing rivet SPR is formed on the ring-shaped pressure receiving surface D1 of the shallow die D of the cavity recess D2. A self-piercing rivet SP formed with a short leg L corresponding to this die D
A rectangular mark is also formed on the head H of R. Also,
As shown in (b) of FIG. 8, a circular stamp for determining the pressing force of the self-piercing rivet SPR is formed on the ring-shaped pressure receiving surface D1 of the deep die D of the cavity recess D2, which corresponds to this die D. A circular stamp is also formed on the head H of the self-piercing rivet SPR having the long leg L.

【００３３】なお、前記のセルフピアッシングリベット
ＳＰＲの頭部Ｈには、その脚部Ｌの長短を刻印の個数で
示すように複数の刻印を形成してもよい。A plurality of markings may be formed on the head H of the self-piercing rivet SPR so that the length of the leg L is indicated by the number of markings.

【００３４】[0034]

【発明の効果】以上説明したように、第１の発明に係る
セルフピアッシングリベットの加圧力判定方法では、被
締結板材への刻印の転写度合が観察者により目視観察さ
れる。そして、刻印の転写度合が大きいほどセルフピア
ッシングリベットの加圧力が大きく、刻印の転写度合が
小さいほどセルフピアッシングリベットの加圧力が小さ
いものと判定される。従って、この加圧力判定方法によ
れば、全てのカシメ付け部分においてセルフピアッシン
グリベットの加圧力の過不足を客観的に、かつ簡単に判
定することができる。As described above, in the self-piercing rivet pressing force determination method according to the first aspect of the invention, the degree of transfer of the marking to the plate to be fastened is visually observed by the observer. Then, it is determined that the larger the degree of transfer of the marking is, the larger the pressing force of the self-piercing rivet is, and the smaller the degree of transfer of the marking is, the smaller the pressing force of the self-piercing rivet is. Therefore, according to this pressing force determining method, it is possible to objectively and easily determine whether the pressing force of the self-piercing rivet is excessive or deficient in all the crimped portions.

【００３５】第２の発明に係るセルフピアッシングリベ
ットの加圧力判定方法では、オイルの逃げ孔または逃げ
溝の端部の開口による刻印の被締結板材への転写度合が
大きいほどセルフピアッシングリベットの加圧力が大き
く、刻印の転写度合が小さいほどセルフピアッシングリ
ベットの加圧力が小さいものと客観的に判定される。従
って、この加圧力判定方法によれば、全てのカシメ付け
部分においてセルフピアッシングリベットの加圧力の過
不足を客観的に、かつ簡単に判定することができる。加
えて、この加圧力判定方法に使用するダイにはオイルの
逃げ孔または逃げ溝が形成されているため、セルフピア
ッシングリベットの打ち込みに応じて被締結板材をキャ
ビティ凹部内に確実に塑性流動させ、被締結板材を確実
にカシメ付けることができる。In the self-piercing rivet pressing force determining method according to the second aspect of the present invention, the larger the degree of transfer of the marking to the plate material to be fastened by the opening of the oil escape hole or the end of the escape groove, the larger the pressing force of the self-piercing rivet. Is larger and the degree of transfer of the marking is smaller, it is objectively determined that the pressing force of the self-piercing rivet is smaller. Therefore, according to this pressing force determining method, it is possible to objectively and easily determine whether the pressing force of the self-piercing rivet is excessive or deficient in all the crimped portions. In addition, because the die used for this pressing force determination method has an escape hole or escape groove for oil, the plate material to be fastened is surely plastically flowed into the cavity concave portion according to the driving of the self-piercing rivet, The plate material to be fastened can be securely crimped.

【００３６】第３の発明に係るセルフピアッシングリベ
ットの加圧力判定方法では、被締結板材への下限値刻
印、適正値刻印および上限値刻印の転写度合が観察者に
より目視観察される。そして、被締結板材に転写された
刻印が下限値刻印のみである場合には、セルフピアッシ
ングリベットの加圧力が下限値と適正値との間にあると
判定され、前記刻印が下限値刻印および適正値刻印であ
る場合には、前記加圧力が適正値と上限値との間にある
と判定される。一方、前記刻印が下限値刻印、適正値刻
印および上限値刻印である場合には、前記加圧力が上限
値を超えていると判定され、何れの刻印も転写されてい
ない場合には、前記加圧力が下限値に満たないと判定さ
れる。従って、この加圧力判定方法によれば、セルフピ
アッシングリベットの加圧力の過不足を一層明確に判定
することができる。In the method for determining the pressing force of the self-piercing rivet according to the third aspect of the invention, the degree of transfer of the lower limit value marking, the appropriate value marking and the upper limit value marking to the plate to be fastened is visually observed by the observer. Then, when the marking transferred to the plate material to be fastened is only the lower limit value marking, it is determined that the pressing force of the self-piercing rivet is between the lower limit value and the proper value, and the marking is the lower limit value marking and the proper value. In the case of a value stamp, it is determined that the pressing force is between the proper value and the upper limit value. On the other hand, when the markings are the lower limit value marking, the appropriate value marking and the upper limit marking, it is determined that the pressing force exceeds the upper limit value, and when none of the markings is transferred, the adding marking is performed. It is determined that the pressure is below the lower limit. Therefore, according to this pressing force determination method, the excess or deficiency of the pressing force of the self-piercing rivet can be determined more clearly.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明に係るセルフピアッシングリベットの加
圧力判定方法に使用する締結装置の斜視図である。FIG. 1 is a perspective view of a fastening device used in a method for determining a pressing force of a self-piercing rivet according to the present invention.

【図２】図１に示したセルフピアッシングリベットによ
りカシメ付けられたアッパパネルおよびロアパネルの断
面図である。FIG. 2 is a cross-sectional view of an upper panel and a lower panel crimped by the self-piercing rivet shown in FIG.

【図３】本発明の第１実施形態に係るセルフピアッシン
グリベットの加圧力判定方法に使用するダイの斜視図で
ある。FIG. 3 is a perspective view of a die used in the method for determining the pressing force of the self-piercing rivet according to the first embodiment of the present invention.

【図４】図３に示した下限値刻印、適正値刻印および上
限値刻印の開口部の角部の丸み、開口幅、深さを相互に
比較して示す断面図である。4 is a cross-sectional view showing the roundness, opening width, and depth of the corners of the opening of the lower limit value marking, the appropriate value marking, and the upper limit value marking shown in FIG.

【図５】第１実施形態に係るセルフピアッシングリベッ
トの加圧力判定方法に使用する刻印の変形例を示すダイ
の斜視図である。FIG. 5 is a perspective view of a die showing a modified example of the marking used in the method for determining the pressing force of the self-piercing rivet according to the first embodiment.

【図６】第２実施形態に係るセルフピアッシングリベッ
トの加圧力判定方法に使用するダイの斜視図である。FIG. 6 is a perspective view of a die used in a method for determining a pressing force of a self-piercing rivet according to a second embodiment.

【図７】第２実施形態に係るセルフピアッシングリベッ
トの加圧力判定方法に使用する刻印の変形例を示すダイ
の断面図である。FIG. 7 is a cross-sectional view of a die showing a modified example of the marking used in the method for determining the pressing force of the self-piercing rivet according to the second embodiment.

【図８】図１に示したダイとセルフピアッシングリベッ
トとの組み合わせを明確にするために形成される刻印を
示すダイおよびセルフピアッシングリベットの斜視図で
ある。FIG. 8 is a perspective view of the die and the self-piercing rivet showing indicia formed to clarify the combination of the die shown in FIG. 1 and the self-piercing rivet.

【図９】セルフピアッシングリベットによるカシメ付け
構造を示すアッパパネルおよびロアパネルの断面図であ
る。FIG. 9 is a cross-sectional view of an upper panel and a lower panel showing a crimping structure using self-piercing rivets.

【符号の説明】[Explanation of symbols]

１ ：締結装置 Ｄ ：ダイ Ｄ１：リング状受圧面 Ｄ２：キャビティ凹部 Ｄ３：***部 Ｓ１，Ｓ４，Ｓ７，Ｓ１０：下限値刻印 Ｓ２，Ｓ５，Ｓ８：適正値刻印 Ｓ３，Ｓ６，Ｓ９，Ｓ１１：上限値刻印 Ｇ１，Ｇ２，Ｇ３：逃げ溝 Ｈ１，Ｈ２：逃げ孔 Ｐ ：ポンチ ＳＰＲ：セルフピアッシングリベット Ｈ：頭部 Ｌ：脚部 ＵＰ：アッパパネル ＬＰ：ロアパネル 1: Fastening device D: Die D1: Ring-shaped pressure receiving surface D2: Cavity recess D3: Protuberance S1, S4, S7, S10: Lower limit marking S2, S5, S8: Engraved appropriate value S3, S6, S9, S11: Engraved upper limit value G1, G2, G3: relief groove H1, H2: escape hole P: Punch SPR: Self-piercing rivets H: Head L: leg UP: Upper panel LP: Lower panel

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 ダイとポンチとの間で被締結板材にセル
フピアッシングリベットを打ち込んで前記被締結板材を
相互にカシメ付けるに当たり、前記ダイの受圧面に予め
形成しておいた刻印が前記被締結板材に転写される度合
に応じてセルフピアッシングリベットの加圧力の大小を
判定することを特徴とするセルフピアッシングリベット
の加圧力判定方法。1. When a self-piercing rivet is driven into a plate member to be fastened between a die and a punch to crimp the plate members to be fastened to each other, a preformed mark on a pressure-receiving surface of the die is to be fastened. A method for determining the applied pressure of a self-piercing rivet, characterized in that the magnitude of the applied pressure of the self-piercing rivet is determined according to the degree of transfer to the plate material. 【請求項２】 前記ダイには、その受圧面のキャビティ
凹部に溜まるオイルの逃げ孔または逃げ溝を形成してお
き、この逃げ孔または逃げ溝の端部を前記受圧面に開口
させて前記刻印を構成したことを特徴とする請求項１に
記載のセルフピアッシングリベットの加圧力判定方法。2. The die is provided with an escape hole or escape groove for oil that collects in a cavity concave portion of the pressure receiving surface, and the end of the escape hole or escape groove is opened to the pressure receiving surface to form the stamp. The method for determining a pressing force of a self-piercing rivet according to claim 1, wherein: 【請求項３】 前記ダイには、セルフピアッシングリベ
ットの適正加圧力範囲の下限値以上の加圧力、中間の適
正値以上の加圧力、上限値以上の加圧力でそれぞれ被締
結板材に転写される下限値刻印、適正値刻印および上限
値刻印を形成しておくことを特徴とする請求項１または
請求項２に記載のセルフピアッシングリベットの加圧力
判定方法。3. The die is transferred to the plate material to be fastened with a pressing force equal to or higher than a lower limit value of an appropriate pressing force range of the self-piercing rivet, a pressing force equal to or higher than an intermediate appropriate value, or a pressing force equal to or higher than an upper limit value. The method for determining a pressing force of a self-piercing rivet according to claim 1 or 2, wherein a lower limit value stamp, an appropriate value stamp and an upper limit value stamp are formed.
JP2002094455A 2002-03-29 2002-03-29 Self-piercing rivet pressure judgment method Expired - Fee Related JP3979575B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002094455A JP3979575B2 (en) 2002-03-29 2002-03-29 Self-piercing rivet pressure judgment method

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Application Number Priority Date Filing Date Title
JP2002094455A JP3979575B2 (en) 2002-03-29 2002-03-29 Self-piercing rivet pressure judgment method

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JP2003290865A true JP2003290865A (en) 2003-10-14
JP3979575B2 JP3979575B2 (en) 2007-09-19

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006057252A1 (en) * 2004-11-26 2006-06-01 Jtekt Corporation Rolling bearing device for wheel, method of producing the same, and turning apparatus for bearing member
CN1301165C (en) * 2004-08-12 2007-02-21 中国科学院金属研究所 Explosion type self-riveting equipment and method thereof
GB2459557A (en) * 2008-05-23 2009-11-04 Porsche Ag Punch-Riveting Tool
US8458881B1 (en) 2011-11-22 2013-06-11 Ford Global Technologies, Llc Die with multi-sided cavity for self-piercing riveting process
DE102013210370A1 (en) * 2013-06-04 2014-12-04 Böllhoff Verbindungstechnik GmbH Adjustment aid for a joining device with a punch and a counter tool and a method for adjusting the joining device
JP2018176235A (en) * 2017-04-17 2018-11-15 マツダ株式会社 Rivet joining mold
JP2018176237A (en) * 2017-04-17 2018-11-15 マツダ株式会社 Rivet joining mold
JP2019067762A (en) * 2017-09-29 2019-04-25 株式会社Ｇｓユアサ Manufacturing method of power storage element, power storage element, and power storage device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1301165C (en) * 2004-08-12 2007-02-21 中国科学院金属研究所 Explosion type self-riveting equipment and method thereof
WO2006057252A1 (en) * 2004-11-26 2006-06-01 Jtekt Corporation Rolling bearing device for wheel, method of producing the same, and turning apparatus for bearing member
US7886441B2 (en) 2004-11-26 2011-02-15 Jtekt Corporation Method of manufacturing a rolling bearing device having identification information
US8534923B2 (en) 2004-11-26 2013-09-17 Jtekt Corporation Rolling bearing device for a road-wheel, a method of manufacturing the same and a turning apparatus for a bearing member
GB2459557A (en) * 2008-05-23 2009-11-04 Porsche Ag Punch-Riveting Tool
US8458881B1 (en) 2011-11-22 2013-06-11 Ford Global Technologies, Llc Die with multi-sided cavity for self-piercing riveting process
DE102013210370A1 (en) * 2013-06-04 2014-12-04 Böllhoff Verbindungstechnik GmbH Adjustment aid for a joining device with a punch and a counter tool and a method for adjusting the joining device
WO2014195107A1 (en) * 2013-06-04 2014-12-11 Böllhoff Verbindungstechnik GmbH Adjustment aid for a joining device having a punch and a counter-tool, and method for adjusting the joining device
US9968987B2 (en) 2013-06-04 2018-05-15 Böllhoff Verbindungstechnik GmbH Adjustment aid for a joining device having a punch and a counter-tool, and method for adjusting the joining device
JP2018176235A (en) * 2017-04-17 2018-11-15 マツダ株式会社 Rivet joining mold
JP2018176237A (en) * 2017-04-17 2018-11-15 マツダ株式会社 Rivet joining mold
JP2019067762A (en) * 2017-09-29 2019-04-25 株式会社Ｇｓユアサ Manufacturing method of power storage element, power storage element, and power storage device

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