JPH0318256A - Manufacture of hollow core shaft member - Google Patents
Manufacture of hollow core shaft memberInfo
- Publication number
- JPH0318256A JPH0318256A JP15074789A JP15074789A JPH0318256A JP H0318256 A JPH0318256 A JP H0318256A JP 15074789 A JP15074789 A JP 15074789A JP 15074789 A JP15074789 A JP 15074789A JP H0318256 A JPH0318256 A JP H0318256A
- Authority
- JP
- Japan
- Prior art keywords
- shaft member
- core
- core shaft
- hollow
- shaft
- 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 12
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、プーり取付け部やギア部等の溝部が形或され
る中空状コア軸材の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of manufacturing a hollow core shaft member in which a groove portion such as a pulley attachment portion or a gear portion is formed.
[従来技術及び発明が解決しようとする課題コ一般に、
モータ等のコア軸には、プーり取付け部やギア部等の溝
部が形成されたものがあるが、このコア軸を中空状にし
て例えば軽量化を図ることがある。しかるに従来、この
様に溝部が形成された中空状コア軸を製造するには、第
4図に示す如く、予め中空状の軸部材1↓を用意し、こ
のものに溝部を形成し、その後表面硬度を向上させるた
め熱処理加工していた。しかるにこの場合、形成された
溝部の肉薄部が、加熱によって変形したり破損したりす
ることがあり、信頼性に富んだ高品質のものを大量かつ
安価に提供することが難しく問題となっていた。[In general, the problems to be solved by the prior art and the invention,
Some core shafts of motors and the like are formed with grooves such as pulley attachment portions and gear portions, but this core shaft may be made hollow to reduce weight, for example. However, conventionally, in order to manufacture a hollow core shaft with a groove formed in this way, as shown in FIG. It was heat treated to improve hardness. However, in this case, the thin part of the formed groove may be deformed or damaged by heating, making it difficult to provide reliable, high-quality products in large quantities at low cost. .
[課題を解決する手段]
本発明は、上記の如き実情に鑑み、これらの欠点を一掃
することができる中空状コア軸材の製造方法を提供する
ことを目的として創案されたものであって、外周部に溝
部が形或された中空状のコア軸材を製造するに、少なく
とも溝形或部は中空状でない軸部材に上記溝部を形成し
熱処理加工をした後、該軸部材を中空状に加工したこと
を特徴とするものである。[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a method for manufacturing a hollow core shaft material that can eliminate these drawbacks. To manufacture a hollow core shaft material with a groove formed on the outer periphery, the groove is formed in a shaft member that is not hollow at least in a groove shape, and after heat treatment, the shaft member is made into a hollow shape. It is characterized by being processed.
そして本発明は、この方法によって、精度の高い中空状
コア軸材を簡単かつ確実に製造できるようにしたもので
ある。According to the present invention, a highly accurate hollow core shaft material can be easily and reliably manufactured using this method.
[実施例]
次に、本発明の一実施例を図面に基づいて説明する。図
面において、1はモータであって、該モータ1は、モー
タヨーク2、モータヨーク2に回動自在に軸承されるコ
ア軸材3、コイルが巻装されるアーマチュアコア5、刷
子6と摺接するコンミテータ7、永久磁石8等の部材か
ら構或されていること等は何れも従来通りである。[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, 1 is a motor, and the motor 1 is in sliding contact with a motor yoke 2, a core shaft member 3 that is rotatably supported on the motor yoke 2, an armature core 5 around which a coil is wound, and a brush 6. The components such as the commutator 7 and the permanent magnet 8 are all the same as before.
前記コア軸材3は中空状の円筒形をしており、該コア軸
材3のモータヨーク2から突出する先端部には、プーり
取付け用の溝部4が形或されているが、このコア軸材3
は次の様にして製造される。The core shaft material 3 has a hollow cylindrical shape, and a groove portion 4 for attaching a pulley is formed at the tip of the core shaft material 3 protruding from the motor yoke 2. Shaft material 3
is manufactured as follows.
即ち、9はコア軸材3の材料となる中実状のシャフトブ
ランク(本発明の軸部材に相当する)であって、該ブラ
ンクシャフト9の一端部には、治具用の仮ボス部9aが
設けられている。そしてまず、シャフトブランク9外周
部のアマチュアコアが固着される部位にローレッ1〜加
工を行なう。次いでシャフトブランク9外周部の所定位
置に溝部4を形成する。その後、仮ボス部9aに熱処理
防止剤を塗布してからシャフ1・ブランク9を熱処理加
工し、それからシャフトブランク9のローレッ1・加工
部l○にアマチュアコア5を圧入嵌着する。しかる後、
シャフトブランク9を中空状に加工し、これによってボ
ス部9aも一緒に取り除かれ、溝部4が形成された中空
状のコア軸材3が製造されるようになっている。That is, 9 is a solid shaft blank (corresponding to the shaft member of the present invention) which is the material of the core shaft material 3, and one end of the blank shaft 9 has a temporary boss portion 9a for a jig. It is provided. First, knurling is performed on the outer circumferential portion of the shaft blank 9 at a portion where the armature core is fixed. Next, the groove 4 is formed at a predetermined position on the outer periphery of the shaft blank 9. Thereafter, a heat treatment inhibitor is applied to the temporary boss portion 9a, and then the shaft 1 and the blank 9 are heat treated, and then the armature core 5 is press-fitted into the knurl 1 and the processed portion l○ of the shaft blank 9. After that,
The shaft blank 9 is processed into a hollow shape, whereby the boss portion 9a is also removed, and a hollow core shaft member 3 in which the groove portion 4 is formed is manufactured.
叙述の如く構或された本発明の実施例において、コア軸
材3の材料である中実状のシャフ1・ブランク9は、ま
ずローレット加工、溝部4形成加工、熱処理加工、アマ
チュアコア5圧入加工がなされ、しかる後中空化加工さ
れることとなり、これによって溝部4が形成された中空
状のコア軸材3が製造されることとなる。In the embodiment of the present invention constructed as described above, the solid shaft 1/blank 9, which is the material of the core shaft material 3, is first subjected to knurling, groove 4 formation, heat treatment, and armature core 5 press-fitting. After that, a hollow core shaft material 3 with grooves 4 formed therein is manufactured.
この様に、本発明にあっては、コア軸3は、中実状のシ
ャフトブランク9を溝部4形戊加工、熱処理加工、アマ
チュアコア5圧入加工等した後に中空化加工して製造さ
れるので、従って、溝部4の肉薄部が熱処理加工やアマ
チュアコアの圧入加工によって変形したり破損したりす
ることを効果的に回避できて、信頼性の高い中空状のコ
ア軸3=3−
を確実に製造することができる。As described above, in the present invention, the core shaft 3 is manufactured by hollowing the solid shaft blank 9 after subjecting it to drilling into the groove 4, heat treatment, press-fitting the armature core 5, etc. Therefore, it is possible to effectively avoid deformation or damage of the thin wall portion of the groove portion 4 due to heat treatment or press-fitting of the armature core, and to reliably manufacture a highly reliable hollow core shaft 3. can do.
[作用効果]
以上要するに、本発明は叙述の如く構威されたものであ
るから、コア軸材は、軸部材に溝部を形或し熱処理加工
をした後で中空状に加工して製造されるので、従って従
来の如く中空状の軸部材に溝部を形成し熱処理加工をし
た場合のように、溝部の肉薄部が熱処理加工によって変
形したり破損したりすることを効果的に回避できて、中
空状のコア軸材であっても、精度の高い高品質のものを
簡単かつ確実に提供できる。[Operations and Effects] In summary, the present invention is constructed as described above, and the core shaft material is manufactured by forming grooves in the shaft member, heat-treating it, and then processing it into a hollow shape. Therefore, it is possible to effectively avoid deformation or damage of the thin wall portion of the groove due to heat treatment, which is the case when a groove is formed in a hollow shaft member and heat treated as in the conventional method. Even if the core shaft material has a shape, it is possible to easily and reliably provide high-quality, highly accurate core shaft materials.
図面は、本発明に係る中空状コア軸材の製造方法の実施
例を示したものであって、第1図はモータの概略断面図
、第2図A.B.Cはコア軸材の製造工程を示す説明図
、第3図A.B.Cは種々の溝部が形或されたモータの
概略断面図、第4図A.B.C.Dは従来例における製
造工程を示す説明図である。
図中、3はコア軸材、4は溝部、9はシャフト4一
ブランクである。The drawings show an embodiment of the method for manufacturing a hollow core shaft material according to the present invention, and FIG. 1 is a schematic sectional view of a motor, and FIG. 2 is a schematic sectional view of a motor. B. C is an explanatory diagram showing the manufacturing process of the core shaft material, and FIG. 3A. B. FIG. 4A is a schematic cross-sectional view of a motor with various grooves formed therein. B. C. D is an explanatory diagram showing a manufacturing process in a conventional example. In the figure, 3 is a core shaft material, 4 is a groove, and 9 is a shaft 4-blank.
Claims (1)
に、少なくとも溝形成部は中空状でない軸部材に上記溝
部を形成し熱処理加工をした後、該軸部材を中空状に加
工したことを特徴とする中空状コア軸材の製造方法。In order to manufacture a hollow core shaft material having a groove formed on the outer periphery, at least the groove forming portion is formed in a shaft member that is not hollow, and after heat treatment is performed, the shaft member is processed into a hollow shape. A method for manufacturing a hollow core shaft material, characterized by:
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15074789A JPH0667157B2 (en) | 1989-06-14 | 1989-06-14 | Method for manufacturing hollow core shaft material |
DE4018959A DE4018959C2 (en) | 1989-06-14 | 1990-06-13 | Method of making a connection between a hub and a shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15074789A JPH0667157B2 (en) | 1989-06-14 | 1989-06-14 | Method for manufacturing hollow core shaft material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0318256A true JPH0318256A (en) | 1991-01-25 |
JPH0667157B2 JPH0667157B2 (en) | 1994-08-24 |
Family
ID=15503538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15074789A Expired - Lifetime JPH0667157B2 (en) | 1989-06-14 | 1989-06-14 | Method for manufacturing hollow core shaft material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0667157B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010102664A (en) * | 2000-05-03 | 2001-11-16 | 지성원 | zn001 |
JP2021035192A (en) * | 2019-08-26 | 2021-03-01 | 国本工業株式会社 | Motor shaft and motor |
-
1989
- 1989-06-14 JP JP15074789A patent/JPH0667157B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010102664A (en) * | 2000-05-03 | 2001-11-16 | 지성원 | zn001 |
JP2021035192A (en) * | 2019-08-26 | 2021-03-01 | 国本工業株式会社 | Motor shaft and motor |
Also Published As
Publication number | Publication date |
---|---|
JPH0667157B2 (en) | 1994-08-24 |
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