JPH0830650B2 - Directional discrimination device for unequal pitch springs - Google Patents
Directional discrimination device for unequal pitch springsInfo
- Publication number
- JPH0830650B2 JPH0830650B2 JP3297541A JP29754191A JPH0830650B2 JP H0830650 B2 JPH0830650 B2 JP H0830650B2 JP 3297541 A JP3297541 A JP 3297541A JP 29754191 A JP29754191 A JP 29754191A JP H0830650 B2 JPH0830650 B2 JP H0830650B2
- Authority
- JP
- Japan
- Prior art keywords
- unequal pitch
- conveyor
- plate
- pitch spring
- unequal
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は不等ピッチばねの方向性
判別装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direction determining device for unequal pitch springs.
【０００２】[0002]
【従来の技術】自動車用エンジン等の給排気弁の駆動体
として不等ピッチばねが使用されている。図４に示すよ
うに、不等ピッチばね（10）はばねの一端を小さなピッ
チ（Ｐ 1）とし、他端を大きなピッチ（Ｐ2）とすること
によって、エンジンの給排気弁の開閉タイミングを調整
している。この不等ピッチばね（10）を給排気弁に組込
む際に、ピッチの方向性を取違えると給排気弁の開閉タ
イミングが狂うため、不等ピッチばね（10）は、出荷も
しくはエンジン組立工程への供給に先立ってピッチ（Ｐ
1）（Ｐ2）を計測し、着色（11）等の方向性判別手段を
付加し、所定個数単位で方向性を揃えた状態で後続工程
またはユーザに供給される。2. Description of the Related Art A driver for a supply / exhaust valve of an automobile engine or the like
The unequal pitch spring is used as. As shown in FIG.
As described above, the unequal pitch spring (10) has a small pin at one end of the spring.
Ji (P 1) And the other end has a large pitch (P2)
Adjusts the opening and closing timing of the engine supply and exhaust valves
are doing. Incorporate this unequal pitch spring (10) into the air supply / exhaust valve
If the direction of the pitch is incorrect when opening or closing,
Unequal pitch springs (10) are also shipped
Before the supply to the engine assembly process, the pitch (P
1) (P2) Is measured, and direction determination means such as coloring (11) is used.
Subsequent process after adding and aligning the directionality in units of a predetermined number
Or supplied to the user.
【０００３】[0003]
【発明が解決しようとする課題】近年、省力化と品質管
理上の必要から不等ピッチばね（10）の方向性に間違い
がないことが一層要求されつつあるため、不等ピッチば
ね（10）の製造工程では、上記着色（11）に加えて、不
等ピッチばね（10）の両端から一定のピッチ区間の質量
差を電気的な計測手段により判別する等の方法を併用し
ている。In recent years, it is further required that the directionality of the unequal pitch spring (10) is correct because of labor saving and quality control. Therefore, the unequal pitch spring (10) is required. In the manufacturing process of (1), in addition to the coloring (11), a method of discriminating the mass difference in a constant pitch section from both ends of the unequal pitch spring (10) by an electric measuring means is also used.
【０００４】ところが、この質量差を利用する方法で
は、判別精度が充分でなく、方向性を取違えた不等ピッ
チばね（10）がそのまま次工程あるいはユーザに供給さ
れてしまうおそれがあった。However, in the method utilizing this mass difference, the discrimination accuracy is not sufficient, and there is a possibility that the unequal pitch springs (10) having different directionalities are directly supplied to the next process or the user.
【０００５】[0005]
【課題を解決するための手段】上記課題の解決手段とし
て本発明は、不等ピッチばねを直立状態で、定速で搬送
するコンベア装置と、前記コンベア装置の上面にコンベ
ア本体と所定の間隔を介して、かつ、自由端がコンベア
本体側端より内方に離隔して配置され、コンベア本体の
移動方向に傾斜して延び、他端をコンベア装置の側部に
固着した支持プレートと、前記支持プレートの前端に、
その長手方向に沿って固着された取付プレートと、前記
取付プレートにその長手方向に沿って、前端縁を突出し
て固着された板ゲージと、上記支持プレート上に前記板
ゲージの長手方向に沿う投受光経路を形成するよう対向
配置されたレーザセンサとによって構成されたことを特
徴とする不等ピッチばねの方向性判別装置を提供するも
のである。Means for Solving the Problems As a means for solving the above problems, the present invention provides a conveyor device which conveys unequal pitch springs in an upright state at a constant speed, and a predetermined interval between the conveyor body and the conveyor body on the upper surface of the conveyor device. Via, and the free end is arranged inwardly spaced from the conveyor body side end, extends obliquely in the moving direction of the conveyor body, and the other end is fixed to the side part of the conveyor device; At the front edge of the plate,
A mounting plate fixed along the longitudinal direction, a plate gauge fixed to the mounting plate along the longitudinal direction with a front edge protruding, and a projection on the support plate along the longitudinal direction of the plate gauge. The present invention provides a device for determining the directionality of an unequal pitch spring, which is configured by a laser sensor arranged to face each other so as to form a light receiving path.
【０００６】[0006]
【作用】不等ピッチばねは、直立状態に保持されたまま
恒速移動するコンベア本体の上に供給される。コンベア
本体の恒速移動に伴って、不等ピッチばねは、コンベア
本体の移動方向を斜めに横切るように配設された板ゲー
ジの前端面に当接し、板ゲージの前端面との摩擦により
回転し乍ら移送される。この際不等ピッチばねの方向性
が設定条件と相違していると、板ゲージの前端が不等ピ
ッチばねのコイル間に食込み、レーザセンサの投受光経
路が不等ピッチばねのコイルにより遮断され、不等ピッ
チばねの方向性の誤りが検知される。The unequal pitch spring is supplied onto the conveyor main body which moves at a constant speed while being held upright. As the conveyor body moves at a constant speed, the unequal pitch spring comes into contact with the front end face of the plate gauge arranged diagonally across the moving direction of the conveyor body and rotates due to friction with the front end face of the plate gauge. It is transferred from the ground. At this time, if the directionality of the unequal pitch spring is different from the set condition, the front end of the plate gauge bites into the coil of the unequal pitch spring, and the light emitting / receiving path of the laser sensor is blocked by the coil of the unequal pitch spring. , The directional error of the unequal pitch spring is detected.
【０００７】[0007]
【実施例】以下、図１乃至図３に基づいて本発明装置の
一具体例を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific example of the device of the present invention will be described below with reference to FIGS.
【０００８】不等ピッチばねの方向性判別装置（６）
は、前工程、例えば、方向性判別用の着色マーク（11）
の付与工程から直立状態となって供給された不等ピッチ
ばね（10）を恒速搬送するコンベア装置（１）と、図３
の（Ａ）に示すようにこのコンベア装置（１）の上面
に、間隔（Ｇ）を介してコンベア本体（１Ａ）の側端よ
り内方上に自由端が位置し、図２に矢印（Ｆ）で示す上
記コンベア本体（１Ａ）の移動方向に傾斜して横切るよ
うに延び、他端がコンベア装置（１）の側部にビスによ
り固着された支持プレート（２）と、この支持プレート
（２）の前端に上記コンベア本体（１Ａ）の移動方向
（Ｆ）に対して所定の傾斜角、例えば約45゜の傾斜角を
なすように固着された２枚１組の取付プレート（３Ａ）
（３Ｂ）と、この取付プレート（３Ａ）（３Ｂ）に長手
方向を略一致させ且つ前端縁を突出して固着された板ゲ
ージ（４）と、上記支持プレート（２）上に上記板ゲー
ジ（４）の長手方向に沿う投受光経路を形成するように
対向配置されたレーザセンサ（５Ａ）（５Ｂ）とによっ
て構成されている。Directional discrimination device (6) for unequal pitch springs
Is a colored mark (11) for the preceding step, for example, for determining the directionality
And a conveyor device (1) that conveys the unequal pitch spring (10) supplied in an upright state from the applying step of FIG.
As shown in (A) of FIG. 2, the free end is located on the upper surface of the conveyor device (1) inwardly above the side end of the conveyor main body (1A) through the gap (G), and the arrow (F ), A support plate (2) which is inclined in the moving direction of the conveyor main body (1A) and extends across the conveyor body, and the other end of which is fixed to the side portion of the conveyor device (1) with screws. 2) a pair of mounting plates (3A) fixed to the front end of the conveyor main body (1A) at a predetermined inclination angle with respect to the moving direction (F), for example, about 45 °.
(3B), a plate gauge (4) fixed to the mounting plates (3A) and (3B) in the longitudinal direction and protruding from the front edge, and the plate gauge (4) on the support plate (2). The laser sensors (5A) and (5B) are arranged so as to face each other so as to form a light projecting / receiving path along the longitudinal direction of (1).
【０００９】コンベア装置（１）は、図示しないモータ
によって恒速回転する駆動ローラ（１Ｂ）と、この駆動
ローラ（１Ｂ）に対向配置された従動ローラ（１Ｃ）
と、これらのローラに巻回された無端搬送ベルト（１
Ａ）により、構成されており、例えば、10乃至12m／毎
分の速度で移動することによって、その上に供給された
不等ピッチばね（10）を直立させた状態で矢印（Ｆ）の
方向に移送させている。The conveyor device (1) has a drive roller (1B) which is rotated at a constant speed by a motor (not shown), and a driven roller (1C) which is arranged to face the drive roller (1B).
And the endless conveyor belt (1
A), and for example, by moving at a speed of 10 to 12 m / min, the unequal pitch spring (10) supplied thereon is erected, and in the direction of the arrow (F). Are transferred to.
【００１０】板ゲージ（４）の長手方向の寸法は、この
板ゲージ（４）に当接した不等ピッチばね（10）に、少
なくとも１回転以上、更に好ましくは１1/2回転以上の
回転運動が与えられるように設定する。一方、板ゲージ
（４）の厚み寸法は、不等ピッチばね（10）寸法特性に
応じての小ピッチ（Ｐ1）側ではコイル間に上記板ゲー
ジ（４）の先端部分が食込まず、大ピッチ（Ｐ2）側で
は食込み得るように設定する。The longitudinal dimension of the plate gauge (4) is such that the unequal pitch spring (10) in contact with the plate gauge (4) has at least one rotation, more preferably 11/2 rotation or more. To be given. On the other hand, as for the thickness dimension of the plate gauge (4), the tip portion of the plate gauge (4) does not bite between the coils on the small pitch (P 1 ) side according to the dimensional characteristics of the unequal pitch spring (10), It is set so that it can bite on the large pitch (P 2 ) side.
【００１１】上記板ゲージ（４）の設定に対応して、レ
ーザセンサ（５Ａ）（５Ｂ）によって構成される投受光
経路は、不等ピッチばね（10）のコイルの間に板ゲージ
（４）の先端部分が食込み、不等ピッチばね（10）が内
方へ移動して光束の50乃至60パーセントが遮断されたと
きにピッチ不良信号が発信されるように設計する。投受
光面積（７）は不等ピッチばね（10）の寸法特性に応じ
て調整するが、例えば、不等ピッチばね（10）のコイル
外径が24mmの場合、投受光域の面積を縦10mm、横１mm程
度に設定する。Corresponding to the setting of the plate gauge (4), the light emitting / receiving path constituted by the laser sensors (5A) and (5B) has a plate gauge (4) between coils of the unequal pitch spring (10). Design is made so that a defective pitch signal is emitted when the tip portion of the eclipse bites, the unequal pitch spring (10) moves inward, and 50 to 60% of the light flux is blocked. The light emitting and receiving area (7) is adjusted according to the dimensional characteristics of the unequal pitch spring (10). For example, when the coil outer diameter of the unequal pitch spring (10) is 24 mm, the area of the light emitting and receiving area is 10 mm in the vertical direction. Set the width to about 1 mm.
【００１２】以下、本発明装置の作動順序を説明する。The operation sequence of the device of the present invention will be described below.
【００１３】不等ピッチばね（10）は、直立状態に保持
されたまま恒速移動するコンベア装置（１）上に送り出
される。コンベア本体（１Ａ）の恒速移動に伴って、不
等ピッチばね（10）は、図１および図２に二点鎖線と矢
印（Ｆ1）で示すように支持プレート（２）の取付位置
（進行方向右側）寄り位置からコンベア本体（１Ａ）の
移動方向（Ｆ）に傾斜して横切るように配設された板ゲ
ージ（４）に向って移動する。不等ピッチばね（10）が
板ゲージ（４）の前端面に当接すると、不等ピチばね
（10）には、板ゲージ（４）の前端面に沿う直線運動
と、符号（Ｒ）で示す板ゲージ（４）との摩擦による回
転運動が発生する。不等ピッチばね（10）の方向性が予
め設定された条件と相違していると、図３（Ｃ）に示す
ように上記板ゲージ（４）の前端面に沿う直線運動（Ｆ
1）と回転運動（Ｒ）の途上で、板ゲージ（４）の前端
が不等ピッチばね（10）のコイル間に食込み、これによ
ってレーザセンサ（５Ａ）（５Ｂ）の投受光経路を不等
ピッチばね（10）が遮蔽する。投受光面積（７）の50乃
至60パーセント程度が遮断されることによって、コンベ
ア装置（１）が自動停止し、方向性が逆であると判定さ
れた不等ピチばね（10）は、図示しない自動排出装置に
より、或いは警報や赤ランプの表示とともにコンベア装
置（１）が停止し作業者が排出する。The unequal pitch spring (10) is sent out onto the conveyor device (1) which moves at a constant speed while being held upright. As the conveyor main body (1A) moves at a constant speed, the unequal pitch spring (10) moves to the mounting position () of the support plate (2) as shown by the chain double-dashed line and arrow (F 1 ) in FIGS. It moves toward the plate gauge (4) arranged so as to incline and move in the moving direction (F) of the conveyor body (1A) from the position closer to the right side in the traveling direction. When the unequal pitch spring (10) comes into contact with the front end face of the plate gauge (4), the unequal pitch spring (10) has a linear motion along the front end face of the plate gauge (4) and a sign (R). Rotational motion occurs due to friction with the plate gauge (4) shown. If the directionality of the unequal pitch spring (10) is different from the preset condition, as shown in FIG. 3 (C), the linear movement (F) along the front end face of the plate gauge (4) is performed.
1 ) and the rotational movement (R), the front end of the plate gauge (4) bites into the coil of the unequal pitch spring (10), which causes unequal transmission and reception paths of the laser sensors (5A) and (5B). It is shielded by the pitch spring (10). The unequal pinch spring (10), which is determined to have the opposite directionality by automatically stopping the conveyor device (1) by blocking about 50 to 60% of the light projecting / receiving area (7), is not shown. The conveyor device (1) is stopped by the automatic discharging device or with the display of the alarm and the red lamp, and the worker discharges.
【００１４】これに対し方向性が正しいと判定された不
等ピッチばね（10）は、図３（Ｂ）に示すように回転し
ながら板ゲージ（４）の前端面に沿って移動し、支持プ
レート（２）の先端で移動方向を再度矢印（Ｆ1）方向
に変換され、パッケージング工程などの次工程に送り出
される。On the other hand, the unequal pitch spring (10) determined to have the correct directionality moves along the front end face of the plate gauge (4) while rotating as shown in FIG. At the tip of the plate (2), the moving direction is changed again to the arrow (F 1 ) direction, and the plate (2) is sent to the next step such as the packaging step.
【００１５】[0015]
【発明の効果】自動搬送の途上で、板ゲージ（４）の食
込みと、レーザセンサ（５Ａ）（５Ｂ）の投受光経路の
遮断を利用して不等ピッチばね（10）の方向性を簡便且
つ確実に判別しているため間違えたままの状態で不等ピ
ッチばね（10）が供給されることが皆無となった。この
結果、後続工程またはユーザ側での不等ピッチばね（1
0）の組込みに際し、省力化と品質管理の容易化に顕著
な効果が発揮された。[Effects of the Invention] The direction of the unequal pitch spring (10) is simplified by utilizing the bite of the plate gauge (4) and the interruption of the light emitting and receiving paths of the laser sensors (5A) and (5B) during the automatic conveyance. Moreover, since the discrimination is made surely, the unequal pitch spring (10) is never supplied in the state of being mistaken. As a result, unequal pitch springs (1
When incorporating 0), remarkable effects were exhibited in labor saving and easy quality control.
【図１】本発明装置の斜視図FIG. 1 is a perspective view of the device of the present invention.
【図２】本発明装置の平面図FIG. 2 is a plan view of the device of the present invention.
【図３】（Ａ）本発明装置の一部破断正面図 （Ｂ）本発明装置の平常作動時の概略正面図 （Ｃ）本発明装置の異常検出時の概略正面図FIG. 3A is a partially cutaway front view of the device of the present invention. FIG. 3B is a schematic front view of the device of the present invention during normal operation.
【図４】不等ピッチばねの正面図FIG. 4 is a front view of the unequal pitch spring.
１ コンベア １Ａ コンベア本体 ２ 支持プレート ３ 取付プレート ４ 板ゲージ ５Ａ レーザセンサ（投光器） ５Ｂ レーザセンサ（受光器） ６ 方向性判別装置 ７ 投受光面積 Ｆ コンベア本体の移動方向 Ｆ1 不等ピッチばねの直線移動方向 Ｒ 不等ピッチばねの回転方向 10 不等ピッチばね1 Conveyor 1A Conveyor main body 2 Support plate 3 Mounting plate 4 Plate gauge 5A Laser sensor (light transmitter) 5B Laser sensor (light receiver) 6 Directional discriminating device 7 Light emitting and receiving area F Conveyor body moving direction F 1 Straight line of unequal pitch spring Movement direction R Rotation direction of unequal pitch spring 10 Unequal pitch spring
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−246405（ＪＰ，Ａ) 特開 平２−198304（ＪＰ，Ａ) 特開 昭57−125807（ＪＰ，Ａ) 特開 昭52−29460（ＪＰ，Ａ) 実開 平１−156407（ＪＰ，Ｕ) ─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-3-246405 (JP, A) JP-A-2-198304 (JP, A) JP-A 57-125807 (JP, A) JP-A 52- 29460 (JP, A) Actual Kaihei 1-156407 (JP, U)
Claims (1)
送するコンベア装置と、前記コンベア装置の上面にコン
ベア本体と所定の間隔を介して、かつ、自由端がコンベ
ア本体側端より内方に離隔して配置され、コンベア本体
の移動方向に傾斜して延び、他端をコンベア装置の側部
に固着した支持プレートと、前記支持プレートの前端
に、その長手方向に沿って固着された取付プレートと、
前記取付プレートにその長手方向に沿って、前端縁を突
出して固着された板ゲージと、上記支持プレート上に前
記板ゲージの長手方向に沿う投受光経路を形成するよう
対向配置されたレーザセンサとによって構成されたこと
を特徴とする不等ピッチばねの方向性判別装置。1. A conveyor device which conveys unequal pitch springs in an upright state at a constant speed, and a predetermined distance from the conveyor main body on the upper surface of the conveyor device, and the free end of which is inside the end of the conveyor main body. And a support plate that is arranged to be separated from each other, extends obliquely in the moving direction of the conveyor body, and has the other end fixed to the side part of the conveyor device, and the front end of the support plate, which is fixed along the longitudinal direction thereof. A mounting plate,
A plate gauge fixed to the mounting plate along its longitudinal direction by projecting a front edge thereof, and a laser sensor disposed on the support plate so as to face each other so as to form a light projecting / receiving path along the longitudinal direction of the plate gauge. A device for determining the directionality of a non-uniform pitch spring, which is characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3297541A JPH0830650B2 (en) | 1991-11-14 | 1991-11-14 | Directional discrimination device for unequal pitch springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3297541A JPH0830650B2 (en) | 1991-11-14 | 1991-11-14 | Directional discrimination device for unequal pitch springs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05157540A JPH05157540A (en) | 1993-06-22 |
| JPH0830650B2 true JPH0830650B2 (en) | 1996-03-27 |
Family
ID=17847877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3297541A Expired - Fee Related JPH0830650B2 (en) | 1991-11-14 | 1991-11-14 | Directional discrimination device for unequal pitch springs |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0830650B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6805700B2 (en) | 2016-10-07 | 2020-12-23 | 富士通株式会社 | Distance measuring device, distance measuring method, and distance measuring program |
-
1991
- 1991-11-14 JP JP3297541A patent/JPH0830650B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05157540A (en) | 1993-06-22 |
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