JPS58168454A - Piercing punch of forging - Google Patents
Piercing punch of forgingInfo
- Publication number
- JPS58168454A JPS58168454A JP5304582A JP5304582A JPS58168454A JP S58168454 A JPS58168454 A JP S58168454A JP 5304582 A JP5304582 A JP 5304582A JP 5304582 A JP5304582 A JP 5304582A JP S58168454 A JPS58168454 A JP S58168454A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- punch body
- holder
- forging
- hole
- 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.)
- Pending
Links
- 238000005242 forging Methods 0.000 title claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000005304 joining Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 208000035874 Excoriation Diseases 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/04—Piercing presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は主として金属材料からなる素棒を熱間鍛造法に
より穿孔加工して中空製品を製造する為に使用すゐ鍛造
用穿孔ポンチに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a forging punch used for producing hollow products by punching raw rods mainly made of metal materials by hot forging.
従来このような熱間鍛造に使用される穿孔ポンチは、鍛
造時に高熱の影響な受けて劣化し晶く、或いは素棒の塑
性加工に伴う摩耗損傷を受は易いことから、耐熱性及び
耐摩耗性材料によって製作されている。しかし、実際に
ポンチが熱影響による劣化、及び摩耗損傷を受けるのは
、その先端部であって基部に近い程その影響は少ない。Hole punches conventionally used for such hot forging are susceptible to deterioration and crystallization due to the effects of high heat during forging, or are susceptible to abrasion damage due to plastic working of the raw bar, so they have to be heat-resistant and wear-resistant. Manufactured from synthetic materials. However, in reality, it is the tip of the punch that is subject to deterioration and wear damage due to thermal effects, and the closer the punch is to the base, the less the effect.
本発明はかかる点に着目し、ポンチ本体の先端部に高耐
熱性、高耐摩耗性材料を摩擦溶接により接合するように
し、熱影響による劣化、及び摩耗損傷を受ける先端部の
みを切断、摩擦溶接して適宜交換するようにして、従来
のようなポンチ本体全体を交換することの無駄を排する
ことを目的の１つとする。The present invention focuses on this point, and uses friction welding to join a highly heat-resistant and highly wear-resistant material to the tip of the punch body, and cuts only the tip, which is subject to deterioration and wear damage due to heat effects, by friction welding. One of the purposes is to eliminate the waste of replacing the entire punch body as in the past by welding it and replacing it as appropriate.
また、このように従来の穿孔ポンチは、熱影響或いは摩
耗損傷を受ける消耗品であるために、所定回数使用され
た後には交換されるべく、その基部に螺合部が形成され
、その螺合部を介してポンチホルダーと接続し得るよう
に製作されているが、鍛造時にその螺合部に電荷が集中
して螺合部の折損を生じ使用できなくなるという間層も
あった。In addition, since conventional drilling punches are consumable items that are subject to heat damage or wear and tear, a threaded part is formed at the base of the punch so that it can be replaced after a certain number of uses. Although it is manufactured so that it can be connected to the punch holder through the threaded part, during forging, electric charge concentrates on the threaded part, causing the threaded part to break and become unusable.
本発明の別の目的は、ポンチ本体とポンチホルダーとの
接続部を印部式に嵌合するようにし、その印一部でかか
る負荷を分散吸収することによって、螺合部における負
荷の集中化を避け、螺合部の折損を防ぐことにある。Another object of the present invention is to make the connecting portion between the punch body and the punch holder fit in a mark-like manner, and to disperse and absorb the load at the mark portion, thereby concentrating the load on the threaded portion. The purpose is to avoid this and prevent breakage of the threaded part.
以下本発明の一実施例を図面と共に説明する。An embodiment of the present invention will be described below with reference to the drawings.
本発明ではポンチ本体１の先端部鵞に鍛造その他の方法
によって所定形状に製作した高耐熱性、高耐摩耗性材料
を摩擦溶接により接合する。また、該ポンチ本体ｌの基
部１の背面に該基部１の外径より小径の嵌合部４を一体
に突設し、さらに咳嵌合部４の背面にはねじ軸６を一体
に形成する。In the present invention, a highly heat-resistant and highly wear-resistant material manufactured into a predetermined shape by forging or other methods is joined to the tip of the punch body 1 by friction welding. Further, a fitting portion 4 having a smaller diameter than the outer diameter of the base portion 1 is integrally provided on the back surface of the base portion 1 of the punch body l, and a screw shaft 6 is integrally formed on the back surface of the cough fitting portion 4. .
６は誼ポンチ本体１が接続されるポンチホルダーで、誼
ポンチホルダー６の前端ｌｉｌには前記嵌合部４が印部
式に嵌合する嵌合孔７を形成すると共に１ｗＩ嵌合孔７
の底部に前記ねじ軸ｉが螺合する螺合孔８を形成する。Reference numeral 6 denotes a punch holder to which the punch body 1 is connected, and the front end lil of the punch holder 6 is formed with a fitting hole 7 into which the fitting part 4 is fitted in a mark type manner.
A screw hole 8 into which the screw shaft i is screwed is formed at the bottom of the screw shaft.
本発明は前記のような構成からなるものであるから、ポ
ンチ本体ｌのねじ軸６をポンチホルダー６の螺子孔７に
螺合させてやれは、第２図に示されるように基部３の背
面とポンチホルダー６の前面とが密着し、かつ、嵌合部
４が嵌合孔７に密接嵌合することによって、ポンチ本体
ｌとポンチホルタ゛−６との接合部が印部式に密着嵌合
した状態となる。このようにしてポンチホルダ−６０後
端面に形成された挿入部９を鍛造機本体脆の挿入孔Ｕに
嵌挿しボルトνにより固定することにより、ポンチ本体
ｌ及びポンチホルダー６は鍛造機本体論に緊Ｈｍ着され
る。Since the present invention has the above-mentioned configuration, the threaded shaft 6 of the punch body 1 is screwed into the threaded hole 7 of the punch holder 6, as shown in FIG. and the front surface of the punch holder 6, and the fitting part 4 fits tightly into the fitting hole 7, so that the joint part between the punch body l and the punch holder 6 is tightly fitted in a seal type manner. state. By fitting the insertion portion 9 formed on the rear end surface of the punch holder 60 into the insertion hole U of the forging machine main body and fixing it with the bolt ν, the punch main body L and the punch holder 6 can be tightened into the forging machine main body theory. Hm will arrive.
しカルて、熱間鍛造により素棒の穿孔加工を繰返すこと
によってポンチ本体１の先端部鵞は熱影響による劣化、
或いは摩耗損傷を受けその交換を余儀なくされるが、そ
の劣化献いは損傷を受けた先端部のみを切断線表した俵
、同一材料からなる高耐熱性、高耐摩耗性材料を摩擦溶
接してやればソノホンチ本体は繰返し使用できる。However, due to repeated drilling of the raw bar through hot forging, the tip of the punch body 1 deteriorates due to heat effects.
Alternatively, it may suffer from abrasion damage and must be replaced, but the deterioration can be overcome by friction welding a bale with a cut line showing only the damaged tip, made of the same material with high heat resistance and high abrasion resistance. The main body of Sonohonchi can be used repeatedly.
また、鍛造時に塑性加工によって生じる負荷はポンチ本
体ｌとポンチホルダー６との接合部に掛かるが、基部１
の背面とポンチホルダー・の前面とが密着し、かつ、嵌
合部４が嵌合孔７に印部式に密接嵌合されているために
、その接合部に掛がる負荷がその印部部で分散吸収され
てねじ軸Ｓに掛かる負荷が軽減され、誼ねじ軸易の折損
が防止される。In addition, the load generated by plastic working during forging is applied to the joint between the punch body l and the punch holder 6, but the
Since the back surface of the punch holder and the front surface of the punch holder are in close contact with each other, and the fitting part 4 is tightly fitted into the fitting hole 7 in a mark-like manner, the load applied to the joint is transferred to the mark part. The load applied to the screw shaft S is reduced by being dispersed and absorbed by the parts, and breakage of the screw shaft is prevented.
尚、前記嵌合部４の外周に形成された凹溝論にポンチホ
ルダー６に貫挿したボルトＵの先端が圧接するように締
付けることによって、該嵌合部４が嵌合孔１に酪固に固
定されねじ軸ＩＫＮがゐ負荷は一層軽減される。The fitting part 4 is firmly attached to the fitting hole 1 by tightening it so that the tip of the bolt U inserted into the punch holder 6 comes into pressure contact with the concave groove formed on the outer periphery of the fitting part 4. The load on the screw shaft IKN is further reduced.
以上寮旙例について説明したように本発明の穿孔ポンチ
は、ポンチ本体の先端部に高耐熱性、高耐摩耗性材料を
摩Ｊｌｌｌｌ接により接会すゐようにして該先端部のみ
を適宜３２換し得ゐようにしたものであるから、繰返し
使用しても何ら損傷しない基部の方は有効に再利用で＃
ゐので、従来のようにポンチ本体全体を償却するのに較
ベポンチ本体の１１作費が低減できる等の経済的メリッ
トが大きい。As described above, the punch of the present invention has a high heat-resistant, highly abrasion-resistant material attached to the tip of the punch body by grinding, so that only the tip can be properly bonded to 32 mm. Since it is designed to be replaceable, the base part can be effectively reused as it does not cause any damage even after repeated use.
Therefore, compared to depreciating the entire punch body as in the past, there are great economic advantages such as the cost of manufacturing the punch body can be reduced.
また、ポンチ本体よポンチホルダーとを印線式に嵌合す
るようにしてねじ軸に＃ｌＦがる負荷を低減した小ので
あるから、ねじ軸の不慮の折損事故を防止して安定操業
、或いはポンチ本体の慎久的使用を可能ならしめｂ等の
種々の利点を有する。In addition, the punch body and punch holder are fitted in a line-marked manner to reduce the load on the screw shaft, which prevents accidental breakage of the screw shaft and ensures stable operation. It has various advantages such as allowing the punch body to be used sparingly.
４４、図面の簡単な説明
図は本発明の一実施例を示したもので、第７図はポンチ
本体の斜視図、第一図はポンチ本体の取付状線を示した
縦断面図である。44. Brief explanatory drawings of the drawings show one embodiment of the present invention, and FIG. 7 is a perspective view of the punch body, and FIG. 1 is a longitudinal sectional view showing the attachment line of the punch body.
１・・・・ポンチ本体、ト・・・先端部、ト・・・基部
。1...Punch body, T...tip, T...base.
４・・・・嵌合部、Ｓ・・・・ねじ軸、・・・・・ポン
チホルダー、７・・・・嵌合孔、ト・・・螺子孔。4... Fitting part, S... Screw shaft,... Punch holder, 7... Fitting hole, T... Screw hole.
特許出願人 大同特殊鋼株丈会社 １・ パフ 代 理 人 弁理士 伊 藤 毅１１、ｌPatent applicant: Daido Special Steel Co., Ltd. 1. Puff Representative Patent Attorney Ito Fuji 11, l
Claims (1)
摩擦溶接により接合してなゐことを特徴とする鍛造用穿
孔ポンチ。 λ ポンチ本体の基部Ｅ１ｍ基部の外径より小径の嵌合
部を一体に突設し、ポンチホルダーには諌嶽合部が印一
式に嵌合する嵌合孔を形成し、さらに該嵌合部の背面に
は前記嵌合孔の底部に形成された螺子孔に螺合するねじ
軸を一体に形成してなることを特徴とする特許請求の範
囲第１項記載の鍛造用穿孔ポンチ。[Scope of Claims] t. A perforating punch for forging, characterized in that a highly heat-resistant and highly wear-resistant material is joined to the tip of the punch body by friction welding. λ A fitting portion having a diameter smaller than the outer diameter of the base E1m of the punch body is integrally provided, and a fitting hole is formed in the punch holder in which the fitting portion fits in a set of marks, and the fitting portion is formed in the punch holder. 2. The forging punch according to claim 1, wherein a screw shaft is integrally formed on the back surface of the forging hole to be screwed into a screw hole formed at the bottom of the fitting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5304582A JPS58168454A (en) | 1982-03-30 | 1982-03-30 | Piercing punch of forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5304582A JPS58168454A (en) | 1982-03-30 | 1982-03-30 | Piercing punch of forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58168454A true JPS58168454A (en) | 1983-10-04 |
Family
ID=12931903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5304582A Pending JPS58168454A (en) | 1982-03-30 | 1982-03-30 | Piercing punch of forging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58168454A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5317894A (en) * | 1993-03-12 | 1994-06-07 | Rockford Products Corporation | Quick change insert system |
| US5860315A (en) * | 1994-07-29 | 1999-01-19 | Etm Corporation | Device for securing tools |
-
1982
- 1982-03-30 JP JP5304582A patent/JPS58168454A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5317894A (en) * | 1993-03-12 | 1994-06-07 | Rockford Products Corporation | Quick change insert system |
| US5860315A (en) * | 1994-07-29 | 1999-01-19 | Etm Corporation | Device for securing tools |
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