JPS61194312A - Optical rotary encoder - Google Patents
Optical rotary encoderInfo
- Publication number
- JPS61194312A JPS61194312A JP3582185A JP3582185A JPS61194312A JP S61194312 A JPS61194312 A JP S61194312A JP 3582185 A JP3582185 A JP 3582185A JP 3582185 A JP3582185 A JP 3582185A JP S61194312 A JPS61194312 A JP S61194312A
- Authority
- JP
- Japan
- Prior art keywords
- fixing block
- case
- light emitting
- sensor fixing
- emitting element
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 13
- 230000002265 prevention Effects 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract 1
- 239000012212 insulator Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000005476 soldering 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
- G01D5/3473—Circular or rotary encoders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明はワボット、工作機械等の計測・制御分野におい
て位置・速度の情報を得る為の光学式ロータリーエンコ
ーダの構成に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to the configuration of an optical rotary encoder for obtaining position/velocity information in the measurement/control field of robots, machine tools, etc.
従来、位置・速度の検出用センサとしてはエンコーダや
レゾルバ・ボテンシ■ンメータが用いられるが、光学式
のエンコーダにおいてその発光手段は積層板の上にハン
ダ付けされた上で本体ケースにネジ止め或いは接着され
るか、適当な絶縁物を介して本体ケースに接着されてい
た。Conventionally, encoders and resolver potentiometers have been used as sensors for detecting position and speed, but in optical encoders, the light emitting means is soldered onto a laminate and then screwed or glued to the main body case. It was either glued to the main body case via a suitable insulator.
従来例を第３図及び第午図に示す。本体ケース（３）は
コードホイー１ｖ（６）の回転軸（７）を支持し、必要
に応じて電気回路を収納する。第３図は発光素子（１）
ｔプリント基板（２）にハンダ付けで固定した後プリン
ト基板口）を本体ケース（３）にネジ止め固定を行うも
のである。第今図は本体ケース（３）の一部に筒状の取
付部（４）を設は絶縁の為の筒状のスリー１（５）を介
して固定するものである。０３）は軸受である。A conventional example is shown in Fig. 3 and Fig. 3. The main body case (3) supports the rotating shaft (7) of the cord wheel 1v (6) and houses an electric circuit as required. Figure 3 shows a light emitting element (1)
After fixing to the printed circuit board (2) by soldering, the printed circuit board opening) is fixed to the main body case (3) with screws. In this figure, a cylindrical attachment part (4) is provided on a part of the main body case (3) and is fixed via a cylindrical sleeve 1 (5) for insulation. 03) is a bearing.
本発明の目的は１組立作業性のよい光学式ロータリーエ
ンコーダの発光手段固定構造を提供することにある。An object of the present invention is to provide a light emitting means fixing structure for an optical rotary encoder that is easy to assemble.
〔発明の開示コ
本発明の光学式ロータリーエンコーダは１発光ダイオー
ド等の発光素子（１）と固定スリット板（９）と回転軸
（７）に取付けられたコードホイー／Ｌ／（６）と固定
スリット板（９）とコードホイー＃（６）のスリット（
図示せず）を透過する変調された発光素子（１）からの
光信号を受光して電気信号に変換する受光素子（１３）
と該受光素子０３）よシ得られる電気信号を位置の情報
に変換する光学式ロータリーエンコーダにおいて、発光
素子（１）全固定する筒型のセンサ固定ブロックＧＯ）
を絶縁性の合成樹脂成型品によって形成し、該センサ固
定ブロックα０）の−面に発光素子（１）を固定すると
共に発光素子（１）に電流を供給するリード線Ｑ４）を
センサ固定ブロックＧＯ）の該発光素子（１）の固定部
の外周部を通して回路ブロックαＤの電気回路に接続で
きるように構成し、該センサ固定ブロックα０）を筒型
の本体ケース（３）に挿入すると共に該センサ固定ブロ
ック００）の外面に形成した回り止め突起０８）を本体
ケース（３）に係合して取付けて成るものである。[Disclosure of the Invention] The optical rotary encoder of the present invention comprises a light emitting element (1) such as a light emitting diode, a fixed slit plate (9), and a code wheel/L/(6) fixed to a rotating shaft (7). Slit plate (9) and cord wheel # (6) slit (
A light-receiving element (13) that receives a modulated optical signal from the light-emitting element (1) that passes through the (not shown) and converts it into an electrical signal.
In an optical rotary encoder that converts an electrical signal obtained from the light receiving element 03) into position information, a cylindrical sensor fixing block GO) that completely fixes the light emitting element (1) is used.
is made of an insulating synthetic resin molded product, and a light emitting element (1) is fixed to the negative side of the sensor fixing block α0), and a lead wire Q4) for supplying current to the light emitting element (1) is connected to the sensor fixing block GO. ) is configured so that it can be connected to the electric circuit of the circuit block αD through the outer periphery of the fixing part of the light emitting element (1), and when the sensor fixing block α0) is inserted into the cylindrical main body case (3), the sensor The fixing block 00) is attached to the main body case (3) by being engaged with a locking protrusion 08) formed on the outer surface of the fixing block 00).
センサ固定ブロック００）は絶縁性の成型品で薄い円筒
型に形成され、周縁部において対向する両面間に貫通さ
せて発光素子（１）を固定する穴Ｑｌ）とその周囲に電
流を供給する為の穴（至）が形成され、かつ回り止め用
の突起０３）が設けられている。The sensor fixing block 00) is an insulating molded product formed into a thin cylindrical shape, and is passed through between opposing surfaces at the periphery to supply current to the hole Ql) for fixing the light emitting element (1) and its surroundings. A hole (to) is formed, and a rotation prevention protrusion 03) is provided.
またセンサ固定ブロック（１０）の中心部は軸穴（Ｉ５
）が貫通している。尚、この回９止め用の突起（１３）
は本体ケースｑＯに係合する凹部でもよい。Also, the center of the sensor fixing block (10) has a shaft hole (I5).
) is passing through. In addition, the protrusion (13) for stopping this turn 9
may be a recess that engages with the main body case qO.
発光素子（１）はセンサ固定ブロック（１０）の穴Ｑｌ
）に発光部のみを出して弱圧入気味に嵌込んで取付けら
れると共に背部に導出したリード線αａを折返して穴０
２）よシ発光部側に導出してお夛、穴（１１）及び穴（
１２）は２液性のエポキシ樹脂等で封止されている。The light emitting element (1) is inserted into the hole Ql of the sensor fixing block (10).
) with only the light-emitting part exposed and slightly press-fitting into the hole 0.
2) Pull it out to the side of the light emitting part and insert the hole (11) and the hole (
12) is sealed with a two-component epoxy resin or the like.
このセンサ固定ブロック００）は金属製の本体ケース（
３）に嵌込まれ固定される。嵌込みは発光素子（１）が
本体ケース（３）の開口部側に向き、係止突起（１８）
が本体ケース（３）の内壁面の凹部０５）に係合するよ
うにおこなわれ、センサ固定ブロックｑのが回転しない
ようにされている。This sensor fixing block 00) is made of metal body case (
3) and is fixed. For fitting, the light emitting element (1) faces the opening of the main case (3), and the locking protrusion (18)
is engaged with a recess 05) on the inner wall surface of the main body case (3), so that the sensor fixing block q is prevented from rotating.
然るのち、コードホイー／Ｌ／（６）ｔ−取付けた回転
軸（力、固定スリット板（９）、受光素子ａつを取付け
た回路ブロック等を順次本体ケース（３）内に嵌合して
取付け、最後に蓋ｑＯをして密閉固定する。After that, the cord wheel/L/(6)t-attached rotating shaft (force), fixed slit plate (9), circuit block with one light receiving element attached, etc. are fitted into the main body case (3) in order. Attach it, and finally close the lid qO and secure it tightly.
前述のリード線Ｇ４）は回路ブロックＱ７）に接続され
る。回路ブロックａつは単に受光素子ｑΦよシ見られる
電気信号を位置の情報に変換するのみならず、変換した
信号を外部に連絡する回路とされることもある。The aforementioned lead wire G4) is connected to the circuit block Q7). The circuit block a may be a circuit that not only converts an electrical signal seen from the light receiving element qΦ into position information, but also communicates the converted signal to the outside.
上記の如く本発明によれば受光素子を取付けたセンサ固
定ブロックは本体ケースに歌合取着することにより取付
けられる為、発光素子の取付穴を隠す為の蓋や発光素子
を基板にハンダ付けしたシ、かつこの嵐板自体を本体に
ネジ止めしたり接着したシする必要がなくなシ、本体ケ
ースにセンサ固定ブロックを一方向から挿入するのみで
組立てる事が可能とな夛、光学式エンコーダの生産性の
向上、コストダウンに効果がある。As described above, according to the present invention, the sensor fixing block with the light-receiving element attached is attached to the main body case by attaching it to the main body case. , and the storm plate itself does not need to be screwed or glued to the main body, and can be assembled by simply inserting the sensor fixing block into the main body case from one direction.This makes it possible to produce optical encoders. It is effective in improving performance and reducing costs.
さらに、センサ固定ブロックは絶縁体で作られている為
、一般に高出力の発光素子は本体ケースの一部が発光素
子と！１２続されているので必矢であった絶縁体が不要
となシ部品点数の削減が図れるFurthermore, since the sensor fixing block is made of an insulator, high-output light-emitting devices generally have a part of the main body case as a light-emitting device! Since 12 parts are connected, there is no need for an insulator, which was a necessity, and the number of parts can be reduced.
第１図及び第２図は本発明の一夾施例を示し。
第１図は１ＩＦｒ面図、第２図は斜視図、第３図及び第
４図は従来例を示す図で、第３図は斜視図、第４図は新
ｃｒＪ図でｂる。
（１）・・・発光素子、（３）・・・本体ケース、ＧＯ
）・・・本体ケースＯ1 and 2 show one embodiment of the invention. FIG. 1 is a 1IFr side view, FIG. 2 is a perspective view, FIGS. 3 and 4 are views showing a conventional example, FIG. 3 is a perspective view, and FIG. 4 is a new CRJ view. (1)...Light emitting element, (3)...Body case, GO
)...Body case O
Claims (1)
ル（６）と固定スリット（９）のスリットの合致部を透
過させて光信号とし、該光信号を受光素子（１３）にて
位置に関する電気信号とする光学式ロータリーエンコー
ダにおいて、発光素子（１）を一定する筒型のセンサ固
定ブロック（１０）を絶縁性の合成樹脂成型品によって
形成し、該センサ固定ブロック（１０）の一面に発光素
子（１）を固定し、該センサ固定ブロック（１０）を筒
型の本体ケース（３）に挿入すると共に該センサ固定ブ
ロック（１０）の外面に形成した回り止め突起（１５）
又は凹部を本体ケース（３）に係合して取付けて成るこ
とを特徴とする光学式ロータリーエンコーダ。(1) The light emitted by the light emitting element (1) is transmitted through the matching part of the rotating code wheel (6) and the fixed slit (9) to form an optical signal, and the optical signal is positioned at the light receiving element (13). In an optical rotary encoder that generates an electrical signal, a cylindrical sensor fixing block (10) that fixes the light emitting element (1) is formed of an insulating synthetic resin molded product, and a sensor fixing block (10) is formed on one side of the sensor fixing block (10). The light emitting element (1) is fixed, the sensor fixing block (10) is inserted into the cylindrical main body case (3), and a rotation prevention protrusion (15) formed on the outer surface of the sensor fixing block (10) is provided.
Alternatively, an optical rotary encoder characterized in that the recess is engaged with and attached to the main body case (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3582185A JPS61194312A (en) | 1985-02-25 | 1985-02-25 | Optical rotary encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3582185A JPS61194312A (en) | 1985-02-25 | 1985-02-25 | Optical rotary encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61194312A true JPS61194312A (en) | 1986-08-28 |
Family
ID=12452612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3582185A Pending JPS61194312A (en) | 1985-02-25 | 1985-02-25 | Optical rotary encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61194312A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126209A (en) * | 1983-01-07 | 1984-07-20 | Matsushita Electric Works Ltd | Rotary encoder |
-
1985
- 1985-02-25 JP JP3582185A patent/JPS61194312A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126209A (en) * | 1983-01-07 | 1984-07-20 | Matsushita Electric Works Ltd | Rotary encoder |
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