JPS61243321A - Manufacturing code wheel of encoder - Google Patents
Manufacturing code wheel of encoderInfo
- Publication number
- JPS61243321A JPS61243321A JP8564085A JP8564085A JPS61243321A JP S61243321 A JPS61243321 A JP S61243321A JP 8564085 A JP8564085 A JP 8564085A JP 8564085 A JP8564085 A JP 8564085A JP S61243321 A JPS61243321 A JP S61243321A
- Authority
- JP
- Japan
- Prior art keywords
- alumite
- cut
- protrusions
- work rod
- holes
- 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 9
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000011358 absorbing material Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 6
- 239000012467 final product Substances 0.000 abstract description 5
- 238000000151 deposition Methods 0.000 abstract 1
- 239000000565 sealant Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 7
- 239000003566 sealing material Substances 0.000 description 3
- 238000007743 anodising Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はエンコーダ、特にロータリー光エンコーダのコ
ードホイールの製法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for manufacturing a code wheel for an encoder, particularly a rotary optical encoder.
従来、この種のコードホイールは、所定径を有するアル
ミニウムの丸棒を、まず最終製品の幅に切断してから、
加工機械で歯切り、即ち、外周面に突部と四部を形成し
て歯車状とし、次いで、全面にアルマイト加工を施して
、電解処理によってアルマイトの微細穴に光吸収材を浸
析させ、全ての微細穴を封孔した後に、外周切削によっ
て突部の表面を削除して反射面を形成し、再度アルマイ
ト加工して突部表面にアルマイト膜を形成して、そのア
ルマイト膜の微細穴を封孔することにより得られていた
ものである。Traditionally, this type of codewheel is made by first cutting an aluminum round bar with a predetermined diameter to the width of the final product, and then
The gears are cut using a processing machine, that is, the protrusions and four parts are formed on the outer circumferential surface to form a gear shape.Then, the entire surface is alumite processed, and the light absorbing material is immersed into the fine holes of the alumite using electrolytic treatment. After sealing the microscopic holes, the surface of the protrusion is removed by cutting the outer periphery to form a reflective surface, and alumite is processed again to form an alumite film on the protrusion surface, and the microscopic hole in the alumite film is sealed. It was obtained by drilling holes.
しかしながら、この従来の製法によると、当初に最終製
品の幅にアルミニウムの丸棒を切断してしまうので、そ
の後の工程は一つづつ個別で行なわなければならず、多
くの手間と時間がかかるものであり、又、その加工は機
械やバイトの状態によって精度が変わり、製品にパラつ
きが生じてしまうものであった・
〔発明の目的〕
本発明の目的は、上記した従来技術の問題点を解消して
、製作時間や手間を大幅に短縮し、ヌ、製品の精度が安
定したものとすることができるエンコータのコードホイ
ールの製法を提供することにある。However, according to this conventional manufacturing method, the aluminum round bar is first cut to the width of the final product, so subsequent steps must be performed one by one, which takes a lot of effort and time. Moreover, the accuracy of the processing changes depending on the condition of the machine and the cutting tool, resulting in unevenness in the product. An object of the present invention is to provide a method for manufacturing a code wheel for an encoder, which can significantly shorten manufacturing time and effort, and stabilize the accuracy of the product.
この目的を達成するために、本発明は、アルミニウムの
丸棒を押し出し加工で交互に突条と溝部を形成した長尺
材を形成し、その長尺材にアルマイト加工を施して、電
解処理によってアルマイトの微細穴に光吸収材を浸析し
て封孔し、その後、製品形状に切断するとともに、突条
表面のアルマイト膜を削除して、再度アルマイト加工し
、封孔することを特徴とする。In order to achieve this object, the present invention involves extruding an aluminum round bar to form a long material in which protrusions and grooves are formed alternately, anodizing the long material, and electrolytically treating it. It is characterized by dipping a light-absorbing material into the fine holes of the alumite to seal them, then cutting them into the product shape, removing the alumite film on the surface of the protrusions, processing the alumite again, and sealing the holes. .
次に１本発明の実施の一例を図面を参照して説明する。 Next, an example of implementation of the present invention will be described with reference to the drawings.
第１図として示すのは、所定径を有する丸棒を、所定の
構成としたダイスで押し出し加工された加工棒１であり
、この加工棒ｌは、その軸方向に沿う突条２・２・・・
と、その突条２・２・・・により構成される略Ｕ字状を
した溝部３・３・・・が交互に形成されたものとされ、
この加工棒を略２ｍ程度の長尺材に切断する。What is shown in FIG. 1 is a processed rod 1 made by extruding a round bar with a predetermined diameter using a die with a predetermined configuration.・・・
, substantially U-shaped grooves 3, 3... constituted by the protrusions 2, 2... are formed alternately,
This processed rod is cut into long pieces of about 2 m.
次いで、その長尺材とされた加工棒ｌの表面全体に陽極
酸化によるアルマイト加工をし、表面にアルマイト膜４
を形成する。そのアルマイト膜４はポーラスであって、
微細穴５・５・・・を有しているもので、このアルマイ
ト膜４を形成した加工棒ｌを、素材のアルミニウムが導
体、アルマイト膜４が不導体であることを利用して電解
処理して、前記微細穴５拳５・・・内に黒色をした光吸
収材６を浸析せしめる。Next, the entire surface of the long rod L is anodized by anodic oxidation, and an alumite film 4 is formed on the surface.
form. The alumite film 4 is porous,
It has minute holes 5, 5, etc., and the processed rod l on which the alumite film 4 is formed is electrolytically treated by utilizing the fact that the aluminum material is a conductor and the alumite film 4 is a nonconductor. Then, a black light absorbing material 6 is immersed into the microscopic holes 5.
その後、微細穴５・５・・・の残余部分を封孔材７で封
孔して、長尺材とした加工棒ｌを自動機で最終の製品形
状に幅Ｈに切断するとともに突条２・２・・・の表面の
アルマイト膜４を切削削除する０次いで、製品形状の幅
Ｈに切断された加工棒１を再度アルマイト加工するが、
この際、溝部３舎３・・・には前回のアルマイトｌ１ａ
４によって光吸収材６が備えられたものとなっているの
で、突条２・２・・・の表面にのみ新規なアルマイト膜
４ａ・４ａ・・・が形成されるもので、この新規なアル
マイトＩｔ！Ｊ ４ ａの微細穴５ａ＠５ａ・・・を封
孔材７ａによって封孔して反射面を仕」二げ、最終製品
を得ることができるよう番こなっている。Thereafter, the remaining portions of the fine holes 5, 5, etc. are sealed with a sealing material 7, and the processed rod l, which is made into a long material, is cut into the final product shape with a width H using an automatic machine, and the protrusions 2 - Cutting and removing the alumite film 4 on the surface of 2...0 Next, the processed rod 1 cut to the width H of the product shape is alumite-processed again.
At this time, the previous anodized aluminum l1a is used for the groove part 3 building 3...
4 is equipped with a light absorbing material 6, new alumite films 4a, 4a... are formed only on the surfaces of the protrusions 2, 2..., and this new alumite It! The minute holes 5a@5a of J4a are sealed with a sealing material 7a to finish the reflective surface and to obtain a final product.
上述したように、本発明によれば、工程の大半が長尺材
とした加工棒に対して行なわれるため、時間と手間が大
幅に節減され、その加工棒も押し出し加工により得られ
るので、最終製品の精度は極めて安定したものとなって
いる。As mentioned above, according to the present invention, most of the processes are carried out on long rods, which greatly saves time and effort, and since the rods are also obtained by extrusion, the final The accuracy of the product is extremely stable.
第１図はアルミニウムの丸棒を押し出し加工した加工棒
の部分斜視図、第２図はアルマイト加工した状態の拡大
断面図、第３図は電解処理して封孔した状態の拡大断面
図、第４図は製品形状に切断し、突条の表面のアルマイ
ト膜を削除した状態の部分斜視図、第５図は再度アルマ
イト加工して、突条の表面にのみ新規なアルマイト膜を
形成した状態の拡大正面図、第６図は突条表面の新規な
フルマイト１２の微細穴を封孔した状態の拡大断面図で
ある。
１・・・加工ｔ４ｉ２・・・突条 ３・・・溝部４・４
ａ・・・アルマイト膜 ５・５ａ・・・微細穴６・・・
光吸収材 ７・７ａ・・・封孔材第１図
第３図
第５図
第２図
第４図
第６図Figure 1 is a partial perspective view of a processed bar made by extruding an aluminum round bar, Figure 2 is an enlarged sectional view of the alumite processed state, Figure 3 is an enlarged sectional view of the pore-sealed state after electrolytic treatment, and Figure 4 is a partial perspective view of the product cut into the product shape and the alumite film removed from the surface of the protrusions, and Figure 5 is a state where the alumite processing has been performed again to form a new alumite film only on the surface of the protrusions. The enlarged front view and FIG. 6 are enlarged cross-sectional views of the new Fulmite 12 on the surface of the protrusions with the fine holes sealed. 1... Processing t4i2... Projection 3... Groove 4.4
a...Alumite film 5.5a...Minute hole 6...
Light absorbing material 7, 7a...Sealing material Fig. 1 Fig. 3 Fig. 5 Fig. 2 Fig. 4 Fig. 6
Claims (1)
加工し、軸方向に沿って突条と溝部を交互に有する加工
棒を形成し、その加工棒を一定長さの長尺材に切断し、
次いで、その長尺材の表面全体にアルマイト加工し、電
解処理によってアルマイトの微細穴に光吸収材を浸析し
て封孔し、その後、長尺材を製品形状に切断するととも
に突条表面のアルマイト膜を削除し、再度アルマイト加
工して突条表面にアルマイト膜を形成して、その微細穴
を封孔することを特徴とするエンコーダのコードホイー
ルの製法。An aluminum round bar with a predetermined diameter is extruded with a die to form a processed bar having protrusions and grooves alternately along the axial direction, and the processed bar is cut into long pieces of a certain length,
Next, the entire surface of the long material is alumite processed, and a light-absorbing material is immersed into the fine pores of the alumite to seal them using electrolytic treatment.Then, the long material is cut into product shapes and the surface of the protrusions is A method for manufacturing a code wheel for an encoder, which comprises removing the alumite film, processing the alumite again to form an alumite film on the surface of the protrusions, and sealing the minute holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8564085A JPS61243321A (en) | 1985-04-22 | 1985-04-22 | Manufacturing code wheel of encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8564085A JPS61243321A (en) | 1985-04-22 | 1985-04-22 | Manufacturing code wheel of encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61243321A true JPS61243321A (en) | 1986-10-29 |
| JPH0431334B2 JPH0431334B2 (en) | 1992-05-26 |
Family
ID=13864421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8564085A Granted JPS61243321A (en) | 1985-04-22 | 1985-04-22 | Manufacturing code wheel of encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61243321A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013100061A1 (en) * | 2011-12-28 | 2013-07-04 | 株式会社ニコン | Encoder, production method for encoder scale, production method for encoder, and drive device |
-
1985
- 1985-04-22 JP JP8564085A patent/JPS61243321A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013100061A1 (en) * | 2011-12-28 | 2013-07-04 | 株式会社ニコン | Encoder, production method for encoder scale, production method for encoder, and drive device |
| CN104094087A (en) * | 2011-12-28 | 2014-10-08 | 株式会社尼康 | Encoder, production method for encoder scale, production method for encoder, and drive device |
| JPWO2013100061A1 (en) * | 2011-12-28 | 2015-05-11 | 株式会社ニコン | Encoder, encoder manufacturing method, encoder manufacturing method, and drive device |
| CN104094087B (en) * | 2011-12-28 | 2016-07-20 | 株式会社尼康 | Encoder, scale for encoder manufacture method, encoder manufacture method and driving device |
| JP2016183983A (en) * | 2011-12-28 | 2016-10-20 | 株式会社ニコン | Manufacturing method of encoder scale and manufacturing method of encoder |
| US10234308B2 (en) | 2011-12-28 | 2019-03-19 | Nikon Corporation | Encoder, manufacturing method of encoder scale, manufacturing method of encoder, and driving apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0431334B2 (en) | 1992-05-26 |
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