JPS6316827A - Manufacture of box nut - Google Patents
Manufacture of box nutInfo
- Publication number
- JPS6316827A JPS6316827A JP15886286A JP15886286A JPS6316827A JP S6316827 A JPS6316827 A JP S6316827A JP 15886286 A JP15886286 A JP 15886286A JP 15886286 A JP15886286 A JP 15886286A JP S6316827 A JPS6316827 A JP S6316827A
- Authority
- JP
- Japan
- Prior art keywords
- thread
- box nut
- rolling
- cap nut
- rolling roller
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 abstract description 11
- 229910001297 Zn alloy Inorganic materials 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/08—Making helical bodies or bodies having parts of helical shape internal screw-threads
Abstract
Description
【発明の詳細な説明】 ・、産業上の利用分野〉 本発明は袋ナツトのねじ山加工方法に関する。[Detailed description of the invention] ・Industrial application field> The present invention relates to a method for threading a cap nut.
（＝従来の技術〉
従来の袋ナツトのねじ山加工は、袋ナツト原型内壁にタ
ップ等により切削加工を施すことにより行われていた。(=Prior Art) Conventionally, thread processing of a cap nut has been performed by cutting the inner wall of the cap nut prototype using a tap or the like.
。
しかし、この方法によると切りくずの逃げを設ける必要
から、袋ナツト原型内壁の最深部まで涌を切ることがで
きなかった。第２図に示すように、このような袋ナツト
に雄ねじを螺合した場合、雄ねじの先端部と袋ナツトの
底部が接触せず、両ねじ間の接触圧力が弱くなるという
問題点があった。. However, with this method, it was not possible to cut the trough to the deepest part of the inner wall of the bag nut prototype because it was necessary to provide a chip escape. As shown in Figure 2, when a male screw is screwed into such a cap nut, there is a problem in that the tip of the male screw does not come into contact with the bottom of the cap nut, which weakens the contact pressure between the two screws. .
また、切削加工を行うと、切削時の傷や切り粉の喰い込
み等により、ねじ面に多数の細かい凹凸が生じる。この
袋ナツトが雄ねじと螺合して使用状態にある時、ねじ面
へ衝撃負荷が繰り返し加えられることによって、微小な
凸部が塑性変形を起こし、比較的早期にねじ面が平滑化
してしまう。Further, when cutting is performed, many fine irregularities are generated on the thread surface due to scratches during cutting, biting of chips, etc. When this cap nut is screwed into a male thread and in use, impact loads are repeatedly applied to the threaded surface, causing plastic deformation of minute convex portions and smoothing the threaded surface relatively quickly.
従って、この方法によるとねじの耐久性にも難点があっ
た、
一方、袋ナツトを金型等により一体成形する方法もある
。これによると、ねじ山を内壁最深部まで設けることが
できるが、多大なコストががかり、ねじの製造単価が非
常に高くなってしまうという問題がある。Therefore, this method had a drawback in terms of the durability of the screw.On the other hand, there is also a method in which the cap nut is integrally molded using a mold or the like. According to this method, the screw thread can be provided to the deepest part of the inner wall, but there is a problem that a large amount of cost is required and the manufacturing cost of the screw becomes extremely high.
（：発明が解決しようとする問題点〉
本発明は、従来技術の−Ｌ述の欠点を克服し、−工程で
袋ナツトの内壁最深部までねし山を加工でき、かつ物理
的特性に優れた袋ナラ１〜の製造方法を提供することを
目的とする５
（問題点を解決するための手段〉
この目的を達成させるため、本発明は次のような方法で
袋ナツトを製造する。すなわち第１図に示す如く、所定
径のねじ孔を存するねじ由来加工の袋ナツト原型３に、
１：のねし孔の内径と同一の有効径を有し先端部までね
じ転造可能な転造ローラ４を回転させながら袋ナツト原
型の底部５まで垂直に挿入することにより、袋ナツト内
面側壁の殻深部まで転造によりねじ山を加工する。(Problems to be Solved by the Invention) The present invention overcomes the shortcomings of the prior art as described in L. The present invention can machine threads to the deepest part of the inner wall of a cap nut in the process, and has excellent physical properties. An object of the present invention is to provide a method for manufacturing bag nuts 1 to 5. (Means for solving the problems) In order to achieve this object, the present invention manufactures bag nuts by the following method. As shown in FIG. 1, a cap nut prototype 3 processed from screws has a screw hole of a predetermined diameter.
1: By rotating the rolling roller 4, which has the same effective diameter as the inner diameter of the tapped hole and is capable of thread rolling up to the tip, and inserting it vertically to the bottom 5 of the cap nut prototype, the inner side wall of the cap nut is Threads are machined by rolling to the depths of the shell.
ここで、転造ローラの有効径とは、ねじ山の厚みと谷の
すき間が等しくなるような仮想的な円筒の直径をいう。Here, the effective diameter of the rolling roller refers to the diameter of a hypothetical cylinder in which the thickness of the thread and the gap between the valleys are equal.
本発明で用いる転造ローラ４は、転造加工可能なものの
中から任意に選択できる。The rolling roller 4 used in the present invention can be arbitrarily selected from those that can be rolled.
但し、袋ナツト原型３の内壁最深部までねし山を設ける
ため、最先端まで転造加工可能なものであることが必要
である。However, since the threads are provided to the deepest part of the inner wall of the bag nut prototype 3, it is necessary that the thread can be rolled up to the leading edge.
袋ナツト原型３は、転造成形に耐える強度を有する金属
の中から任意に選択される。転造は材料の塑性変形のみ
によって加工が行われるので、延び率の大きい材料（６
〜８％以上）はど転造性がよく、普通軟鋼、半硬鋼をは
じめ銅合金、軽合金、亜鉛合金、焼準もしくは調質を施
した合金鋼等はずべて転造可能である。もちろん抗張力
１３０１（ｇ ７’ ｍ ｍ”、がたさ１（Ｒ３５〜４
０程度の材料でも転造はできるが、ローラの寿命が極端
に短くなるので、特に必要とする場合の他は避けるべき
である。The bag nut prototype 3 is arbitrarily selected from metals having strength enough to withstand rolling. Rolling is performed only by plastic deformation of the material, so materials with high elongation (6
8% or more) has good edge rolling properties, and can be rolled in all types of steel, including ordinary mild steel, semi-hard steel, copper alloys, light alloys, zinc alloys, and normalized or tempered alloy steels. Of course, the tensile strength is 1301 (g 7'mm", the looseness is 1 (R35~4
Rolling can be done with materials of about 0.000, but the life of the roller will be extremely short, so it should be avoided unless it is particularly necessary.
・一実施例〉
第１図に示すように亜鉛合金で製造した袋ナッｌ〜原型
３に、転造ローラ４を回転させながら袋ナツト原型３の
底部５まで垂直に挿入しまた。ここで、袋ナツト原型３
の内部ねじ孔は、螺合する雄ねじの有効径と一致してい
る。・One Example> As shown in FIG. 1, a cap nut prototype 3 made of zinc alloy is vertically inserted into a cap nut prototype 3 up to the bottom 5 of the cap nut prototype 3 while rotating a rolling roller 4. Here, Fukuronatsu prototype 3
The internal screw hole matches the effective diameter of the male screw to be screwed.
転造ローラ４は、右ねじの袋ナツトを所望する場合は右
回転、左ねじの袋ナツトを所望する場合は左回転とする
。The rolling roller 4 is rotated clockwise when a right-handed cap nut is desired, and counterclockwise when a left-handed cap nut is desired.
この転造ローラ４は、袋ナツト原型内壁の最深部までね
し山を設けるため、先端までねじが切ってあり、先端ま
で転造加工可能なものであることが必要である。The rolling roller 4 needs to be threaded to the tip and capable of rolling to the tip in order to provide the threads to the deepest part of the inner wall of the bag nut prototype.
転造ローラ４を袋ナツト原型３の底部まで挿入＋、て転
造加工が終了した後は、成形したねし山に傷を付けない
ため、転造ローラ４を逆回転させながら引き出す。この
ようにして、内面最深部までねし山を設けた袋ナツトを
得ることができる。第３図は、本発明の方法により完成
した袋ナツトと雄ねじ６との螺合状態を示している。After the rolling roller 4 is inserted to the bottom of the bag nut master form 3 and the rolling process is completed, the rolling roller 4 is pulled out while rotating in the reverse direction to avoid damaging the formed thread ridge. In this way, it is possible to obtain a cap nut having threads extending to the deepest part of the inner surface. FIG. 3 shows the screwed state of the cap nut and the male screw 6 completed by the method of the present invention.
〈発明の効果〉
本発明の方法によると、単純な一工程で内壁最深部まで
ねし山を設けた袋ナツトを得る１：とができる、
また、この袋ナラ１−は転造加工で製造されるため物理
的特性に優れている。切削加工に比して成形面に凹凸が
少なく、ねじの耐久性も著しく向−ヒしている。<Effects of the Invention> According to the method of the present invention, it is possible to obtain a bag nut with threads extending to the deepest part of the inner wall in one simple step. It has excellent physical properties. Compared to machining, there are fewer irregularities on the molded surface, and the durability of the screw is significantly improved.
さらに、この袋ナツトは雄ねじと螺合した際、接触圧力
に優れた結合状態をもたらすことができる。Furthermore, when this cap nut is screwed together with a male screw, it can provide a bonding state with excellent contact pressure.
第１図は、本発明による袋ナツトの製造方法を示す図、
第２図は、従来技術による袋ナツトの螺合状態を示す図
、
第３図は、本発明による袋ナツトの螺合状態を示ず図で
ある。
３・・・袋ナツト原型
４・・・転造ローラ
５・ ・袋ナツト底部
６・・・雄ねじFIG. 1 is a diagram showing a method for producing a cap nut according to the present invention, FIG. 2 is a diagram showing a screwed state of a cap nut according to the prior art, and FIG. 3 is a diagram showing a screwed state of a cap nut according to the present invention. This figure is not shown. 3... Cap nut prototype 4... Rolling roller 5... Cap nut bottom 6... Male thread
Claims (1)
原型に、このねじ孔の内径と同一の有効径を有し先端部
までねじ転造可能な転造ローラを回転させながら袋ナッ
ト原型の底部まで垂直に挿入することにより、袋ナット
内面側壁の最深部まで転造によりねじ山を加工すること
を特徴とする袋ナットの製造方法。(1) A cap nut prototype with an unthreaded cap nut having a screw hole of a predetermined diameter is rotated with a rolling roller that has the same effective diameter as the inner diameter of the screw hole and is capable of thread rolling up to the tip. A method for producing a cap nut, which comprises inserting the cap nut vertically to the bottom of the prototype to form a thread to the deepest part of the inner side wall of the cap nut by rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15886286A JPS6316827A (en) | 1986-07-08 | 1986-07-08 | Manufacture of box nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15886286A JPS6316827A (en) | 1986-07-08 | 1986-07-08 | Manufacture of box nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6316827A true JPS6316827A (en) | 1988-01-23 |
Family
ID=15681021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15886286A Pending JPS6316827A (en) | 1986-07-08 | 1986-07-08 | Manufacture of box nut |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316827A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5543991A (en) * | 1992-11-24 | 1996-08-06 | Victor Company Of Japan, Ltd. | Tape cassette having a rear cover composed of two pieces of plates rotatably connected to each other |
| JP2007029993A (en) * | 2005-07-27 | 2007-02-08 | Mitsubishi Electric Corp | Method for manufacturing rolled female screw component, and rolled male screw component |
| JP2022510483A (en) * | 2018-12-10 | 2022-01-26 | シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲー | A method for manufacturing a ball trajectory on a workpiece and a ball screw nut having a ball trajectory manufactured in this way. |
-
1986
- 1986-07-08 JP JP15886286A patent/JPS6316827A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5543991A (en) * | 1992-11-24 | 1996-08-06 | Victor Company Of Japan, Ltd. | Tape cassette having a rear cover composed of two pieces of plates rotatably connected to each other |
| JP2007029993A (en) * | 2005-07-27 | 2007-02-08 | Mitsubishi Electric Corp | Method for manufacturing rolled female screw component, and rolled male screw component |
| JP2022510483A (en) * | 2018-12-10 | 2022-01-26 | シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲー | A method for manufacturing a ball trajectory on a workpiece and a ball screw nut having a ball trajectory manufactured in this way. |
| US11951527B2 (en) | 2018-12-10 | 2024-04-09 | Schaeffler Technologies AG & Co. KG | Method for producing a ball raceway on a workpiece and a ball screw nut having a ball raceway thus produced |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2371365A (en) | Locking screw and method of making | |
| US3241426A (en) | Drilling and tapping screw with ragged cutting edges | |
| JPS5914282B2 (en) | Tube expansion drawing method | |
| CN101927382B (en) | Extrusion tap with burring function and burring processing method | |
| US2263424A (en) | Self tapping screw | |
| ATE33568T1 (en) | METHOD OF MANUFACTURING SCREWS AND RELATED TOOLING. | |
| JP2000192929A (en) | Nut and its intermediate product | |
| JPS6024737B2 (en) | Method and tool for forming an elastic screw having an internally sealed helical cavity on a workpiece | |
| JPS6316827A (en) | Manufacture of box nut | |
| GB1022355A (en) | Self-tapping screw with lobular work-entering end and methods for manufacturing same | |
| US3073207A (en) | Screw having roll-formed thread fully formed up to head thrust surface thereof | |
| JP2001009637A (en) | Machining method for female screw | |
| JPH10118844A (en) | Spiral tap | |
| CN215720116U (en) | Novel self-tapping chipless thread insert | |
| JPH06328318A (en) | Ridge deburring method | |
| CN213998110U (en) | Thread milling cutter with deburring function | |
| JP2869125B2 (en) | Manufacturing method of ball screw | |
| JPH07217627A (en) | Forming method for screw | |
| JP2004330387A (en) | Tap for screw cutting and its manufacturing method | |
| US877157A (en) | Manufacture of wood-screws. | |
| TWI264334B (en) | Compounded forging method for fasteners with splines | |
| JPH0224024A (en) | Thread cutting die for chip easy to escape equipped with guide | |
| JPH03234331A (en) | Manufacture of drill screw and form rolling die | |
| JPS59144809A (en) | Screw tool and manufacture thereof | |
| JPH08112635A (en) | Production of rolled thread |