JPS5877735A - Manufacture of hollow rivet for star clinch - Google Patents
Manufacture of hollow rivet for star clinchInfo
- Publication number
- JPS5877735A JPS5877735A JP57185425A JP18542582A JPS5877735A JP S5877735 A JPS5877735 A JP S5877735A JP 57185425 A JP57185425 A JP 57185425A JP 18542582 A JP18542582 A JP 18542582A JP S5877735 A JPS5877735 A JP S5877735A
- Authority
- JP
- Japan
- Prior art keywords
- hollow
- groove
- rivet
- forming
- clinch
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 2
- 230000013011 mating Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/58—Making machine elements rivets
- B21K1/60—Making machine elements rivets hollow or semi-hollow rivets
-
- 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
- B21J15/04—Riveting hollow rivets mechanically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Insertion Pins And Rivets (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】 鋲の製造方法に関する。[Detailed description of the invention] Concerning a method for manufacturing studs.
従来、この種中空鋲には、スタークリンチを容易にする
ため、中空穴の断面形状を、例えば４角形，６角形等の
非円形にし、クリンチ時一の応力を一部に集中させ、こ
れにより確実なスタークリンチを可能にしたものが知ら
れている。Conventionally, in order to facilitate star clinch, this kind of hollow stud has a hollow hole with a non-circular cross-sectional shape, such as a quadrangle or hexagon, to concentrate stress during clinch in one part. What is known is what makes a reliable star clinch possible.
しかしながら、この従来の中空鋲の製造方法では中空穴
の断面形状が非円形であるから、中空穴の成形に不良が
多く発生し、しかもその中空大成形用のパンチの寿命も
短い等の欠点が生じている。However, in this conventional manufacturing method for hollow studs, the cross-sectional shape of the hollow hole is non-circular, so there are many defects in forming the hollow hole, and the life of the punch for forming the large hollow hole is also short. It is occurring.
本発明は上記欠点を除去し、成形容易にして中空大成形
用パンチの寿命が長く、かつスタークリンチを容易にな
しうる中空鋲の製造方法の提供を目的としている。以下
、実施例を図面について説明する。第１図ないし第３図
において；、（１）は頭部（２）及び胴部（３）からな
る中空鋲であり、胴部（３）は中空鋲（４）を穿設した
中空部（５）を有している。この中空部（５）の外周に
は先端から頭部に向うに従って鵜の小さくなりかつ相手
材ａηを打抜く時に中空部（５）の座掘する位置から条
溝となる軸方向に伸びる４本のＶ字形の溝（６）が等間
隔ｔこ設けである。しかも、前記中空部（５）の先端は
平面部を有しており、中空部（５）が相手材Ｏυを打抜
（際、これに所定の強度を与えるように構成されている
。The object of the present invention is to provide a method for manufacturing a hollow stud which eliminates the above-mentioned drawbacks, facilitates forming, has a long life of a large hollow forming punch, and facilitates star clinching. Examples will be described below with reference to the drawings. In Figures 1 to 3, (1) is a hollow stud consisting of a head (2) and a body (3), and the body (3) is a hollow part (4) in which a hollow stud (4) is bored. 5). On the outer periphery of this hollow part (5), there are four grooves that become smaller from the tip to the head and extend in the axial direction to form grooves from the position of the hollow part (5) where it is dug when punching the mating material aη. V-shaped grooves (6) are provided at equal intervals. Moreover, the tip of the hollow part (5) has a flat part, and the hollow part (5) is configured so as to give a predetermined strength to the mating material Oυ (when punching it).
前記溝（６）の最も好適な成形方法を、第４図を参照し
て説明する。まず、第４図（Ａ）に示すように線材から
適寸ｔこ切断された素材（７）を得る。次いで、第４図
ＦＢ＋に示すように、頭部（２）をヘラターで成形する
と同時に胴部（３）をダイスに通して絞り加工を施こし
溝（６）を設ける。か（して得られた中間品に中空大成
形用のパンチを打込み、中空穴（４）を穿設すると、第
４図（Ｃ１に示すように、溝（６）は先端近くを残して
他はほとんど埋めつくされ、外観上は溝（６）が消失し
てしまうが如（になるが条溝として残部する。この溝（
６）の深さは先端に向うに従って増すが、中空部（５）
を完全に切断することはないような寸法にしである。こ
のようにして完成品を得乞。The most suitable method for forming the groove (6) will be explained with reference to FIG. 4. First, as shown in FIG. 4(A), a material (7) is obtained by cutting an appropriate length t from a wire rod. Next, as shown in FIG. 4 FB+, the head (2) is molded using a helator, and at the same time the body (3) is drawn through a die to form grooves (6). When a hollow hole (4) is punched into the intermediate product obtained by (2) and a hollow hole (4) is punched into the intermediate product, the groove (6) is left in the vicinity of the tip and the rest as shown in Fig. 4 (C1). is almost completely filled in, and although the groove (6) appears to have disappeared, it remains as a groove.
The depth of 6) increases toward the tip, but the hollow part (5)
The dimensions should be such that it will not be possible to cut it completely. This is how you get the finished product.
次に、第５図を参照して上記構成の中空鋲（１）と鋲帽
（８）とにより部品ＯＬ＋を軟質材の相手材０υに締結
する場合の作用について説明する。中空鋲（１）を部品
Ｑ・Ｖこ通賞し中空部（５）により相手材Ｑｌ）を打抜
く。この時中空部（５）は溝（６）により切断されてい
ないため所定の強度を有しており、中空部（５）が座掘
することもなく確実に相手材Ｑカを打抜くことができる
。又、同時に中空鋲（１）に鋲帽（８）を押圧すると、
鋲帽（８）の突起（９）が中空鋲（５）の先端に当接し
、突起（９）の傾斜面に沿って中空部（５）を拡開する
。中空部（５）の外周には溝（６）が設けであるのでこ
の溝部分に応力が集中して破断し、中空部（５）の先端
は４片に分割される。更に鋲帽（８）を押込むと、条溝
部分が破断し鋲帽（８）の内側曲面に沿っで拡開変形す
る。かくして中空鋲（１）は確実にクリンチされる。Next, with reference to FIG. 5, the operation when fastening the component OL+ to the soft mating member 0υ using the hollow stud (1) and the stud cap (8) configured as described above will be described. Place the hollow stud (1) through the part Q/V and punch out the mating material Ql) using the hollow part (5). At this time, since the hollow part (5) is not cut by the groove (6), it has a predetermined strength, and the hollow part (5) can reliably punch out the mating material Q without spot digging. can. Also, if you press the stud cap (8) on the hollow stud (1) at the same time,
The protrusion (9) of the stud cap (8) comes into contact with the tip of the hollow stud (5) and expands the hollow part (5) along the slope of the protrusion (9). Since a groove (6) is provided on the outer periphery of the hollow part (5), stress concentrates on this groove part and causes it to break, and the tip of the hollow part (5) is divided into four pieces. When the rivet cap (8) is pushed further, the groove portion breaks and expands and deforms along the inner curved surface of the rivet cap (8). In this way, the hollow stud (1) is reliably clinched.
以上説明したように、本発明は胴部に一旦溝を設けて後
胴部に断面円形の中空穴を穿設して前記溝を消失し、中
空鋲を製造するように構成しているため、スタークリン
チに好適な中空鋲が特別な工程を経ることなく通常の中
空部の製造工程によりｌＩＪ単に製造できる利点がある
。又、本発明は中空大成形用パンチを断面円形としてい
るため製造装置のコストが極めて低くなるばかりか、中
空大成形用パンチの寿命も非円形中空大成形用パンチと
比較して長いため極めて安価でかつスタークリンチに好
適な中空鋲の製造方法を提供することができる利点があ
る。As explained above, the present invention is configured such that a groove is first provided in the body, a hollow hole with a circular cross section is drilled in the rear body, and the groove disappears to manufacture a hollow stud. There is an advantage that hollow studs suitable for star clinch can be simply manufactured using normal hollow part manufacturing processes without going through any special process. Further, in the present invention, since the large hollow forming punch has a circular cross section, the cost of the manufacturing equipment is extremely low, and the life of the large hollow forming punch is longer than that of a non-circular large hollow forming punch, so it is extremely inexpensive. The present invention has the advantage of being able to provide a method for manufacturing hollow rivets suitable for star clinch.
第１図は本発明に係る中空鋲の正面図、第２図は第１図
の１氏面図、第３図は第１図の一部を切欠いた正面図、
第４図（Ａｌ （Ｂｌ ｆｃ＋は本発明の全体説明図、
第５図は本発明に係る中空鋲の使用状態を示す要部断面
図である。
（１１中空鋲、 （２）頭部、（３）胴部、
（４）中空穴、（５）中空部、
（６）溝、（７）素材、 （８）鋲帽
、（９）突起、 ００部品、αカ相手材
、
特許出願人 日東精工株式会社FIG. 1 is a front view of a hollow stud according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a partially cutaway front view of FIG. 1.
FIG. 4 (Al (Bl fc+ is an overall explanatory diagram of the present invention,
FIG. 5 is a sectional view of a main part showing a state in which the hollow stud according to the present invention is used. (11 hollow studs, (2) head, (3) body,
(4) Hollow hole, (5) Hollow part,
(6) Groove, (7) Material, (8) Tack cap, (9) Protrusion, 00 parts, α-ring mating material, Patent applicant Nitto Seiko Co., Ltd.
Claims (1)
一端をダイスに通して素材（７）に絞り加工を施し、溝
（６）を成形すると同時に素材（７）の池端に頭部（２
）を成形し、素材（７）から頭部（２）と胴部品とを形
成し、この胴部（３）に断面円形の中空大成形用のパン
チを打込み、胴部（３）の一端に中空穴（４）を穿設す
るとともに前記溝（６）を埋めつくし、外観上前記溝（
６）を消失させたことを特徴とするスタークリンチ用中
空鋲の製造方法。A material (7) of appropriate size is cut from the wire rod, one end of this material (7) is passed through a die, the material (7) is drawn, and at the same time a groove (6) is formed and the end of the material (7) is drawn. Head (2
), form a head part (2) and a body part from the material (7), drive a punch for forming a hollow large part with a circular cross section into this body part (3), and insert a punch into one end of the body part (3). A hollow hole (4) is bored and the groove (6) is completely filled, so that the groove (6) is completely filled with the groove (6).
6) A method for manufacturing a hollow stud for star clinch, characterized by eliminating the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57185425A JPS5933464B2 (en) | 1982-10-21 | 1982-10-21 | Manufacturing method of hollow studs for star clinch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57185425A JPS5933464B2 (en) | 1982-10-21 | 1982-10-21 | Manufacturing method of hollow studs for star clinch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5877735A true JPS5877735A (en) | 1983-05-11 |
| JPS5933464B2 JPS5933464B2 (en) | 1984-08-16 |
Family
ID=16170559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57185425A Expired JPS5933464B2 (en) | 1982-10-21 | 1982-10-21 | Manufacturing method of hollow studs for star clinch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5933464B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001054662A (en) * | 1999-08-19 | 2001-02-27 | Osaka Seiki Kk | Fastening structure for mounting part seat plate or the like in game machine |
| KR20050036183A (en) * | 2003-10-15 | 2005-04-20 | 현대자동차주식회사 | Self piercing rivet |
| KR101086090B1 (en) * | 2009-03-30 | 2011-11-25 | (주) 에스아이 | The method of forming the body of the blind rivet |
| KR101179225B1 (en) | 2012-06-08 | 2012-09-03 | 윤형철 | self piercing separating rivet and its product method |
| JP2013139840A (en) * | 2011-12-29 | 2013-07-18 | Nissan Motor Co Ltd | Fastening part and method for manufacturing fastening part |
| WO2013183825A1 (en) * | 2012-06-08 | 2013-12-12 | Yoon Hyung Chul | Self-piercing split rivet, method for manufacturing same, and method for fastening same |
| CN107335970A (en) * | 2017-06-09 | 2017-11-10 | 杭州创屹机电科技有限公司 | A kind of preparation method of hollow bolt |
| CN107630888A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Novel hollow rivet |
-
1982
- 1982-10-21 JP JP57185425A patent/JPS5933464B2/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001054662A (en) * | 1999-08-19 | 2001-02-27 | Osaka Seiki Kk | Fastening structure for mounting part seat plate or the like in game machine |
| KR20050036183A (en) * | 2003-10-15 | 2005-04-20 | 현대자동차주식회사 | Self piercing rivet |
| KR101086090B1 (en) * | 2009-03-30 | 2011-11-25 | (주) 에스아이 | The method of forming the body of the blind rivet |
| JP2013139840A (en) * | 2011-12-29 | 2013-07-18 | Nissan Motor Co Ltd | Fastening part and method for manufacturing fastening part |
| KR101179225B1 (en) | 2012-06-08 | 2012-09-03 | 윤형철 | self piercing separating rivet and its product method |
| WO2013183825A1 (en) * | 2012-06-08 | 2013-12-12 | Yoon Hyung Chul | Self-piercing split rivet, method for manufacturing same, and method for fastening same |
| CN107630888A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Novel hollow rivet |
| CN107335970A (en) * | 2017-06-09 | 2017-11-10 | 杭州创屹机电科技有限公司 | A kind of preparation method of hollow bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5933464B2 (en) | 1984-08-16 |
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