JP3694586B2 - Lens frame heating caulking processing apparatus and lens frame heating caulking processing method - Google Patents

Lens frame heating caulking processing apparatus and lens frame heating caulking processing method Download PDF

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JP3694586B2
JP3694586B2 JP10208298A JP10208298A JP3694586B2 JP 3694586 B2 JP3694586 B2 JP 3694586B2 JP 10208298 A JP10208298 A JP 10208298A JP 10208298 A JP10208298 A JP 10208298A JP 3694586 B2 JP3694586 B2 JP 3694586B2
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lens frame
caulking
tip
lens
edge
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JPH11277533A (en
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滉 小林
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Fujinon Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B29C65/568—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12449—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being asymmetric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses

Description

【０００１】
【発明の属する技術分野】
本発明は、カシメ用先端部の表面に離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜が形成されたレンズ枠加熱カシメ加工装置、及びレンズ枠加熱カシメ加工方法に関するものである。
【０００２】
【従来の技術】
従来、合成樹脂製の筒状のレンズ枠（図示せず）にレンズ（図示せず）を装着する場合、レンズ枠の端縁（図示せず）の内側にレンズを載置し、加熱した金属製のカシメ加工治具（図示せず）を加熱してレンズ枠の端縁に押し付け、レンズ枠の端縁をレンズの側へ塑性変形させて「加熱カシメ加工」を行い、変形させたレンズ枠の端縁によってレンズをレンズ枠に固定していた。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記したような従来の方法では、加熱カシメ加工が終了してカシメ加工治具をレンズ枠端縁から引き離そうとしても、加熱カシメ加工治具にレンズ枠端縁が付着して離れにくくなること、また、カシメ加工治具が離れた後のレンズ枠端縁の表面が凹凸状の粗面となる外観不良や、レンズ枠縁端面の肉厚が均一にならず、レンズを固定する強度が不足する強度不良が発生することから、カシメ加工治具の表面に離型性を良くするための離型剤を塗布していた。
【０００４】
しかし、カシメ加工治具の表面に離型剤を塗布するためには、まず表面を有機溶剤等でふいて汚れや油分等を除去しなければならなかった。一方、カシメ加工治具の表面に塗布された離型剤の層は、レンズ枠端縁の加熱カシメ加工を数回行うと薄くなってしまうため、レンズ枠端縁の加熱カシメ加工を所定回数行った場合には、再び上記の有機溶剤による表面のふき取りと離型剤の塗布を行う必要があり、加工における工数が多く煩雑であり、改善が求められていた。
【０００５】
また、長期にわたって加熱カシメ加工を行っているうちに、カシメ加工治具が摩耗して外観不良や、強度不良が発生することから、予備のカシメ加工治具の準備や定期的な交換など、メンテナンスの工数も多く必要としていた。
【０００６】
本発明は上記の問題を解決するためになされたものであり、本発明の解決しようとする課題は、加熱カシメ加工後の引き離しが容易で、加工面が平滑であり、かつ有機溶剤による表面のふき取りや離型剤の塗布を行う必要がなく、長期にわたって加熱カシメ加工が可能な装置や方法を提供することにある。
【０００７】
【課題を解決するための手段】
上記課題を解決するため、本発明の請求項１に係るレンズ枠加熱カシメ加工装置は、
筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部（２ａ）と、
前記カシメ用先端部（２ａ）に接触するように配置されるとともに通電により加熱を行い前記カシメ用先端部（２ａ）を加熱する加熱手段（３、４、５）と、
前記カシメ用先端部（２ａ）の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部（２ａ）を移動させ押し付ける駆動手段を
備え、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部（２ａ）を前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とする。
【０００８】
また、本発明の請求項２に係るレンズ枠加熱カシメ加工装置は、
筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部と、
前記カシメ用先端部の内部に埋設されるとともに通電により熱を発生し前記カシメ用先端部を加熱する加熱手段と、
前記カシメ用先端部の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部を移動させ押し付ける駆動手段を
備え、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部を前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とする。
【０００９】
また、本発明の請求項３に係るレンズ枠加熱カシメ加工方法は、
筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑性・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部（２ａ）と、前記カシメ用先端部（２ａ）に接触するように配置されるとともに通電により加熱を行い前記カシメ用先端部（２ａ）を加熱する加熱手段（３、４、５）と、前記カシメ用先端部（２ａ）の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部（２ａ）を移動させ押し付ける駆動手段を備えるレンズ枠加熱カシメ加工装置（１）を用い、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部（２ａ）を前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とする。
【００１０】
また、本発明の請求項４に係るレンズ枠加熱カシメ加工方法は、
筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑性・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部と、前記カシメ用先端部の内部に埋設されるとともに通電により熱を発生し前記カシメ用先端部を加熱する加熱手段と、前記カシメ用先端部の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部を移動させ押し付ける駆動手段を備えるレンズ枠加熱カシメ加工装置（１）を用い、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部を前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とする。
【００１４】
【発明の実施の形態】
以下、本発明の実施形態について、図面を参照しながら詳細に説明する。
【００１５】
図１は、本発明の一実施形態であるレンズ枠加熱カシメ加工装置の構成を示す図である。また、図２は、図１に示すヒーターチップを用いたレンズ枠のカシメ方法の手順を示す図である。
【００１６】
図１（Ａ）に示すように、このレンズ枠加熱カシメ加工装置１は、ヒーターチップ２と、インシュレーター３と、電極４及び５を備えて構成されている。
【００１７】
ヒーターチップ２は、筒状に形成されており、図１（Ａ）における下部は開放され、図１（Ａ）における下端（以下、「カシメ用先端部」という。）２ａの内壁が外部に向かうにつれて拡径するテーパー状に形成されている。
【００１８】
また、このカシメ用先端部２ａの内壁の表面（押付面）には、図１（Ｂ）に示すように、離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜１６が形成されている。
【００１９】
ヒーターチップ２には、インシュレーター３が取り付けられている。このインシュレーター３の内部には、図示はしていないが、ニクロム線等の電熱部材が内蔵されている。インシュレーター３には、電極４，５が取り付けられており、これらの電極４，５は、内部の電熱部材（図示せず）の両端に電気的に接続している。
【００２０】
したがって、電極４，５に電流を流すと、インシュレーター３内の電熱部材によりインシュレーター３の温度が上昇し、インシュレーター３に接触するヒーターチップ２が加熱されるようになっている。
【００２１】
また、図示はしていないが、インシュレーター３には、温度検出手段と温度維持手段が設けられ、インシュレーター３の温度を一定に保持させ、過熱状態となることを防止している。この温度検出手段と温度維持手段としては、バイメタル部材等を有するサーモスタット機構、温度センサーからの信号により電極への通電量を調整するコンピュータ等が用いられる。
【００２２】
また、図示はしていないが、インシュレーター３は、昇降駆動機構に取り付けられている。この昇降駆動機構は、空気圧シリンダー、油圧シリンダー、電動モーター等を駆動源とし、インシュレーター３を図１（Ａ）の上下方向に移動させることができるように構成されている。このような構成により、昇降駆動機構（図示せず）は、ヒーターチップ２を図１（Ａ）の上下方向に駆動可能となっている。
【００２３】
次に、図１（Ａ）に示すように、上記したレンズ枠加熱カシメ加工装置１を用い、合成樹脂製で筒状に形成されたレンズ枠７の端縁７ａの内側にレンズ６を載置し、カシメ用先端部２ａによりレンズ枠端縁７ａを加熱カシメ加工し、レンズ６をレンズ枠７に取り付ける方法について説明する。
【００２４】
図２は、図１に示すヒーターチップを用いたレンズ枠のカシメ方法の手順を示すレンズ枠端縁付近の拡大図である。
【００２５】
まず、レンズ枠端縁７ａが、カシメ用先端部２ａの内壁の表面（押付面）に対向するように配置させる（図２（Ａ））。この際、電極４，５に通電し、インシュレーター３内の電熱部材によりインシュレーター３を加熱し、それによりインシュレーター３に接触するヒーターチップ２を所定温度（例えば、約２１０〜２４０°Ｃ程度）に加熱する。
【００２６】
次に、昇降駆動機構（図示せず）を作動させ、ヒーターチップ２を駆動させ、レンズ枠端縁７ａに向けて移動させる（図２（Ｂ））。
【００２７】
次に、昇降駆動機構（図示せず）をさらに作動させ、所定温度に保持されたヒーターチップ２を駆動させ、カシメ用先端部２ａをレンズ枠端縁７ａに押し付ける（図２（Ｃ））。この際の押付力は、例えば５ｋｇ／ｃｍ2 程度である。
【００２８】
カシメ用先端部２ａの温度（例えば、約２１０〜２４０°Ｃ程度）は、レンズ枠端縁７ａを構成する合成樹脂の可塑温度領域（塑性変形可能な温度範囲）の温度であるため、レンズ枠端縁７ａは押しつぶされるように塑性変形し、図２（Ｃ）に示すように、レンズ６の側（図における内方）に屈曲したレンズ枠端縁７ｂとなる。
【００２９】
上記した加熱カシメ加工の後、今度は、昇降駆動機構（図示せず）を上記とは逆方向に作動させ、ヒーターチップ２を上記とは逆方向に駆動させ、カシメ用先端部２ａを変形したレンズ枠端縁７ｂから引き離す（図２（Ｄ））。
【００３０】
この場合、カシメ用先端部２ａの表面に離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜１６が形成されているので、容易に引き離しができ、かつ引き離した後のレンズ枠端縁の表面も平滑で肉厚も均一となり、確実な加熱カシメ加工が行われる。
【００３１】
また、離型・潤滑・耐摩耗性皮膜１６により、カシメ用先端部２ａの摩耗が低減され、長期にわたり安定した加熱カシメ加工が可能となる。
【００３２】
上記のようにして、変形したレンズ枠端縁７ｂの屈曲部により、レンズ６は、その外周部分がレンズ枠７に固定される。
【００３３】
次に、上記したヒーターチップ２のカシメ用先端部２ａの表面に形成される離型・潤滑・耐摩耗性皮膜１６について説明する。この離型・潤滑・耐摩耗性皮膜１６は、無電解ニッケルめっき膜の中に、ポリ４フッ化エチレン微粒子が分散されて構成されている。
【００３４】
無電解ニッケルめっき膜は、めっき金属をニッケルとした「無電解めっき法」により形成される。無電解めっき法とは、通常のめっき法のような外部電源を用いずに、被めっき面にめっき金属を析出させる方法である。めっき金属を被めっき面に連続的に析出させるために、無電解めっき法では、外部電源にかわる電気化学的メカニズムにより電子ｅ- が供給される。
【００３５】
無電解めっき法においては、無電解めっき液内にめっき金属ＭのイオンＭn+（ｎ：１以上の整数）が存在し、後述する還元剤等から供給される電子ｅ- により、以下の電気化学的反応
Ｍn+＋ｎｅ- ＝Ｍ
が起こり、被めっき面上にめっき金属Ｍが析出して膜となる。
【００３６】
無電解めっき法には、電気化学的メカニズムにより電子を供給する「自己触媒めっき法」がある。
【００３７】
「自己触媒めっき法」は、めっき金属イオンと還元剤を含む無電解めっき液を用いる。この方法では、無電解めっき液中のめっき金属イオンが、触媒活性な表面において、還元剤から供給される電子により還元析出する。還元剤としては、ホスフィン酸塩やホウ素水素化合物等が用いられる。
【００３８】
本実施形態の離型・潤滑・耐摩耗性皮膜１６は、上記した無電解ニッケルめっき膜の中に、ポリ４フッ化エチレン微粒子が分散されている。このように、無電解ニッケルめっき膜の中にポリ４フッ化エチレン微粒子を分散させる方法について説明する。
【００３９】
図３（Ａ）は、図１に示すヒーターチップ２のカシメ用先端部２ａに施す離型・潤滑・耐摩耗性皮膜１６の形成の原理を示す概念図である。
【００４０】
図３（Ａ）に示すように、無電解めっき液１０内には、めっき金属であるニッケル（Ｎｉ）のイオン（Ｎｉ2+）１１と、正に帯電したポリ４フッ化エチレン微粒子１２が含まれている。また、無電解めっき液１０内には、図示はしないが、上記した還元剤が含まれている。また、無電解めっき液１０内には、図示はしないが、被めっき物に均一な皮膜が析出するように、錯化剤、緩衝剤、安定剤等が添加される。
【００４１】
したがって、上記の無電解めっき液１０内に、表面のサビや油等を除去して地肌を露出させたヒーターチップ２のカシメ用先端部２ａを浸漬すると、還元剤（図示せず）から供給される電子ｅ- により、カシメ用先端部２ａの表面においては、以下の電気化学的反応
Ｎｉ2+＋２ｅ- ＝Ｎｉ
が起こる。
【００４２】
この場合、還元剤にホスフィン酸塩を用いると、無電解めっき液１０内にはリン（Ｐ）を含むホスフィン酸イオンがあるため、カシメ用先端部２ａの表面には、ニッケルとともにリンも同時に析出し、ニッケル−リン合金となる。
【００４３】
また、同様にして、カシメ用先端部２ａの表面においては、正に帯電したポリ４フッ化エチレン微粒子１２にも、電子（ｅ- ）が供給される。この電子により、ポリ４フッ化エチレン微粒子１２の正電荷は電気的に中和され、カシメ用先端部２ａの表面には、ニッケル（あるいは、ニッケル−リン合金）とともに、ポリ４フッ化エチレン微粒子１４が一緒に析出（共析）する。
【００４４】
図３（Ｂ）は、図１に示すカシメ用先端部２ａの表面に形成された離型・潤滑・耐摩耗性皮膜１６の構成を示す概念図である。
【００４５】
図３（Ｂ）に示すように、上記した無電解めっき液１０内に浸漬されたカシメ用先端部２ａの表面には、無電解ニッケルめっき膜１５の中にポリ４フッ化エチレン微粒子１４が共析した離型・潤滑・耐摩耗性皮膜１６が形成される。
【００４６】
離型・潤滑・耐摩耗性皮膜１６内においては、ポリ４フッ化エチレン微粒子１４は、ほぼ均一に分散されている。このポリ４フッ化エチレン微粒子１４の径は、１μｍ以下である。
【００４７】
ポリ４フッ化エチレンは、粘着性が非常に低いため、離型性が良い。また、自己潤滑性を有しており、摩擦係数が非常に小さい。さらに、形成される離型・潤滑・耐摩耗性皮膜１６の被膜は所定の厚さを持ち層厚は均一である。このため、離型・潤滑・耐摩耗性皮膜１６は、カシメ用先端部２ａの表面の離型性及び潤滑性を大幅に向上させるとともに、従来のように、有機溶剤等によるカシメ用先端部のふき取りと離型剤の塗り直し等は不要となる。また、耐摩耗性が高いため、多数回数にわたって加熱カシメ加工を行っても離型・潤滑・耐摩耗性皮膜１６が摩耗することはほとんどない。
【００４８】
上記実施形態において、レンズ枠加熱カシメ加工装置１は合成樹脂製部材の加熱塑性加工装置に相当し、加熱カシメ加工は加熱塑性加工に相当している。また、ヒーターチップ２のカシメ用先端部２ａは、加工手段に相当している。また、インシュレーター３と電極４，５は、加熱手段を構成している。また、図示しない昇降駆動機構は、駆動手段に相当している。また、レンズ枠７は合成樹脂製部材に相当し、レンズ枠端縁７ａは被加工部に相当している。また、インシュレーター３は、接触電熱手段に相当している。また、無電解ニッケルめっき膜１５は、無電解めっき膜に相当している。また、ポリ４フッ化エチレン微粒子１４は、フッ素樹脂の微粒子に相当している。
【００４９】
なお、本発明は、上記実施形態に限定されるものではない。上記実施形態は、例示であり、本発明の特許請求の範囲に記載された技術的思想と実質的に同一な構成を有し、同様な作用効果を奏するものは、いかなるものであっても本発明の技術的範囲に包含される。
【００５０】
例えば、上記実施形態においては、合成樹脂製部材として、筒状に形成されたレンズ枠７を例に挙げて説明したが、本発明はこれには限定されず、他の形状の合成樹脂製部材であってもよい。
【００５１】
また、上記実施形態においては、加工手段として、筒状に形成され、一端部が開放され、その一端部の内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部２ａを例に挙げて説明したが、本発明はこれには限定されず、加熱塑性加工される合成樹脂製部材の被加工部に適合した形状又は構造の加工手段であればどのようなものであってもよい。
【００５２】
また、上記実施形態においては、加熱手段として、電熱部材を内蔵し加工手段であるヒーターチップ２に接触して加熱を行う接触電熱手段を例に挙げて説明したが、本発明はこれには限定されず、他の加熱手段、例えば、加工手段自体の内部に埋設されるとともに通電により熱を発生するようにした埋設電熱手段であってもよい。
【００５３】
また、上記実施形態においては、無電解めっき膜として、無電解ニッケルめっき膜１５を例に挙げて説明したが、本発明はこれには限定されず、他の金属をめっき金属とする無電解めっき膜でもよい。
【００５４】
また、上記実施形態においては、フッ素樹脂微粒子として、ポリ４フッ化エチレン微粒子１４を例に挙げて説明したが、本発明はこれには限定されず、他のフッ素樹脂微粒子であってもよい。
【００５５】
【発明の効果】
以上説明したように、本発明によれば、筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部（２ａ）と、カシメ用先端部（２ａ）を加熱する加熱手段（３、４、５）と、カシメ用先端部（２ａ）の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けてカシメ用先端部（２ａ）を移動させ押し付ける駆動手段を備えるレンズ枠加熱カシメ加工装置を用い、レンズ枠（７）の端縁（７ａ）に向けてカシメ用先端部（２ａ）を移動させて押し付け、レンズ枠（７）の端縁（７ａ）を塑性変形させるようにしたので、加熱塑性加工後の端縁（７ａ）の引き離しが容易で、加工面が平滑であり、有機溶剤による表面のふき取りや離型剤の塗布を行う必要がなく、かつ、離型・潤滑・耐摩耗性皮膜は摩耗しにくいという利点を有している。
【図面の簡単な説明】
【図１】本発明の一実施形態であるレンズ枠加熱カシメ加工装置の構成を示す図である。
【図２】図１に示すヒーターチップを用いたレンズ枠のカシメ方法の手順を示すレンズ枠端縁付近の拡大図である。
【図３】図１に示すヒーターチップのカシメ用先端部に施す離型・潤滑・耐摩耗性皮膜形成の原理、及び形成された離型・潤滑・耐摩耗性皮膜の構成を示す概念図である。
【符号の説明】
１ レンズ枠加熱カシメ加工装置
２ ヒーターチップ
２ａ カシメ用先端部
３ インシュレーター
４，５ 電極
６ レンズ
７ レンズ枠
７ａ カシメ加工前のレンズ枠端縁
７ｂ カシメ加工後のレンズ枠端縁
１０ 無電解めっき液
１１ ニッケルイオン
１２ 帯電したポリ４フッ化エチレン微粒子
１３ ニッケル
１４ ポリ４フッ化エチレン微粒子
１５ 無電解ニッケルめっき膜
１６ 離型・潤滑・耐摩耗性皮膜[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lens frame heating caulking processing apparatus and a lens frame heating caulking processing method in which a release / lubricating / abrasion-resistant coating film having good releasability and lubricity is formed on the surface of the front end portion for caulking. .
[0002]
[Prior art]
Conventionally, when a lens (not shown) is mounted on a synthetic resin cylindrical lens frame (not shown), the lens is placed inside the edge (not shown) of the lens frame and heated. A heated crimping jig (not shown) is pressed against the edge of the lens frame, the edge of the lens frame is plastically deformed toward the lens, and "heated crimping" is performed to deform the lens frame. The lens was fixed to the lens frame by the edge.
[0003]
[Problems to be solved by the invention]
However, in the conventional method as described above, even if the heat caulking process is completed and the caulking jig is to be separated from the edge of the lens frame, the edge of the lens frame adheres to the heat caulking jig and is difficult to separate. In addition, the surface of the lens frame edge after the caulking jig is separated from the surface of the lens frame becomes a rough surface, and the thickness of the lens frame edge is not uniform. Since insufficient strength defects occur, a release agent for improving the release property has been applied to the surface of the crimping jig.
[0004]
However, in order to apply the release agent to the surface of the caulking jig, the surface must first be wiped with an organic solvent to remove dirt and oil. On the other hand, the release agent layer applied to the surface of the crimping jig becomes thin after several times of heat caulking of the lens frame edge, so the heat caulking of the lens frame edge is performed a predetermined number of times. In such a case, it is necessary to wipe the surface with the organic solvent and to apply a release agent again, which requires a lot of man-hours for processing and requires improvement.
[0005]
In addition, while the caulking process is performed over a long period of time, the caulking jig wears out, resulting in poor appearance and poor strength. It required a lot of man-hours.
[0006]
The present invention has been made in order to solve the above problems, and the problem to be solved by the present invention is that separation after heating caulking is easy, the processed surface is smooth, and the surface of the surface by an organic solvent is used. An object of the present invention is to provide an apparatus and a method that can perform heat caulking for a long period of time without the need to wipe off or apply a release agent.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a lens frame heating caulking processing device according to claim 1 of the present invention provides:
Formed in a cylindrical shape, fluororesin fine particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And a caulking tip (2a) formed in a tapered shape whose diameter increases as the inner wall moves outward,
Heating means (3, 4, 5) disposed so as to contact the crimping tip (2a) and heating the crimping tip (2a) by heating by energization ;
A driving means for pressing by moving the crimping tip toward the edge (7a) and (2a) of the crimping tip cylindrical lens frame made opposite synthetic resin on the surface of (2a) (7) ,
The lens (6) is placed inside the lens frame (7), the heated crimping tip (2a) is pressed against the edge (7a) of the lens frame (7), and the lens frame (7 edge of) the (7a) is plastically deformed to the side of the lens (6), characterized in lock down the outer peripheral portion to the lens frame (7) of said lens (6).
[0008]
Moreover, the lens frame heating caulking apparatus according to claim 2 of the present invention includes:
Formed in a cylindrical shape, fluororesin fine particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And a caulking tip formed in a tapered shape whose diameter expands toward the outside,
Heating means embedded in the caulking tip and generating heat by energization to heat the caulking tip;
Driving means for moving and pressing the caulking tip toward the edge (7a) of the cylindrical lens frame (7) made of synthetic resin facing the surface of the caulking tip
Prepared,
The lens (6) is placed inside the lens frame (7), the heated crimping tip is pressed against the edge (7a) of the lens frame (7), and the end of the lens frame (7) is placed. The outer periphery of the lens (6) is fixed to the lens frame (7) by plastically deforming the edge (7a) toward the lens (6).
It is characterized by .
[0009]
Moreover, the lens frame heating caulking method according to claim 3 of the present invention includes:
It is formed in a cylindrical shape, and fine resin particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And the crimping tip (2a) formed in a tapered shape whose diameter expands as the inner wall goes to the outside, and the crimping tip (2a) is disposed so as to be in contact with and heated by energization. The heating means (3, 4, 5) for heating the crimping tip (2a) and the edge of the synthetic resin-made cylindrical lens frame (7) facing the surface of the crimping tip (2a) Using a lens frame heating caulking processing device (1) provided with a driving means for moving and pressing the caulking tip (2a) toward (7a),
The lens (6) is placed inside the lens frame (7), the heated crimping tip (2a) is pressed against the edge (7a) of the lens frame (7), and the lens frame (7 ) Is plastically deformed toward the lens (6) to fix the outer peripheral portion of the lens (6) to the lens frame (7).
The shall be the feature.
[0010]
Moreover, the lens frame heating caulking method according to claim 4 of the present invention includes:
It is formed in a cylindrical shape, and fine resin particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And a caulking tip that is formed in a tapered shape whose inner wall increases in diameter toward the outside, and is embedded in the caulking tip and generates heat by energization to heat the caulking tip A lens having heating means for driving, and driving means for moving and pressing the tip end portion for caulking toward the end edge (7a) of the cylindrical lens frame (7) made of a synthetic resin facing the surface of the tip end portion for caulking Using the frame heating caulking device (1),
The lens (6) is placed inside the lens frame (7), the heated crimping tip is pressed against the edge (7a) of the lens frame (7), and the end of the lens frame (7) is placed. The outer periphery of the lens (6) is fixed to the lens frame (7) by plastically deforming the edge (7a) toward the lens (6).
The shall be the feature.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
FIG. 1 is a diagram showing a configuration of a lens frame heating caulking apparatus according to an embodiment of the present invention. FIG. 2 is a diagram showing a procedure of a caulking method of the lens frame using the heater chip shown in FIG.
[0016]
As shown in FIG. 1A, the lens frame heating caulking processing apparatus 1 includes a heater chip 2, an insulator 3, and electrodes 4 and 5.
[0017]
The heater chip 2 is formed in a cylindrical shape, the lower part in FIG. 1A is opened, and the inner wall of the lower end (hereinafter referred to as “crimping tip part”) 2a in FIG. As the diameter increases, the taper is formed.
[0018]
Further, as shown in FIG. 1B, a mold release / lubrication / abrasion resistant film 16 having good mold release and lubricity is formed on the inner wall surface (pressing surface) of the caulking tip 2a. ing.
[0019]
An insulator 3 is attached to the heater chip 2. Although not shown, the insulator 3 includes an electric heating member such as a nichrome wire. Electrodes 4 and 5 are attached to the insulator 3, and these electrodes 4 and 5 are electrically connected to both ends of an internal heating member (not shown).
[0020]
Therefore, when a current is passed through the electrodes 4 and 5, the temperature of the insulator 3 is increased by the electrothermal member in the insulator 3, and the heater chip 2 that is in contact with the insulator 3 is heated.
[0021]
Although not shown, the insulator 3 is provided with a temperature detecting means and a temperature maintaining means to keep the temperature of the insulator 3 constant and prevent it from being overheated. As the temperature detecting means and the temperature maintaining means, a thermostat mechanism having a bimetal member or the like, a computer for adjusting an energization amount to the electrode by a signal from the temperature sensor, or the like is used.
[0022]
Although not shown, the insulator 3 is attached to a lift drive mechanism. This elevating drive mechanism uses a pneumatic cylinder, a hydraulic cylinder, an electric motor or the like as a drive source, and is configured to move the insulator 3 in the vertical direction of FIG. With such a configuration, an elevating drive mechanism (not shown) can drive the heater chip 2 in the vertical direction of FIG.
[0023]
Next, as shown in FIG. 1A, the lens 6 is mounted on the inner side of the edge 7a of the lens frame 7 made of a synthetic resin and formed into a cylindrical shape using the lens frame heating caulking processing device 1 described above. A method of attaching the lens 6 to the lens frame 7 by heating and caulking the lens frame edge 7a with the caulking tip 2a will be described.
[0024]
FIG. 2 is an enlarged view of the vicinity of the edge of the lens frame showing the procedure of the caulking method of the lens frame using the heater chip shown in FIG.
[0025]
First, the lens frame edge 7a is disposed so as to face the surface (pressing surface) of the inner wall of the caulking tip 2a (FIG. 2A). At this time, the electrodes 4 and 5 are energized, and the insulator 3 is heated by the electric heating member in the insulator 3, thereby heating the heater chip 2 contacting the insulator 3 to a predetermined temperature (for example, about 210 to 240 ° C.). To do.
[0026]
Next, an elevating drive mechanism (not shown) is operated to drive the heater chip 2 and move it toward the lens frame edge 7a (FIG. 2B).
[0027]
Next, the elevating drive mechanism (not shown) is further operated to drive the heater chip 2 held at a predetermined temperature and press the caulking tip 2a against the lens frame edge 7a (FIG. 2C). The pressing force at this time is, for example, about 5 kg / cm 2 .
[0028]
The temperature of the caulking tip 2a (for example, about 210 to 240 ° C.) is a temperature in the plastic temperature region (temperature range in which plastic deformation is possible) of the synthetic resin constituting the lens frame edge 7a. The edge 7a is plastically deformed so as to be crushed and becomes a lens frame edge 7b bent toward the lens 6 (inward in the drawing) as shown in FIG. 2C.
[0029]
After the heat caulking process described above, this time, an elevating drive mechanism (not shown) is operated in the opposite direction to the above, the heater chip 2 is driven in the opposite direction, and the caulking tip 2a is deformed. Pull away from the lens frame edge 7b (FIG. 2D).
[0030]
In this case, since the mold release / lubrication / abrasion-resistant film 16 having good releasability and lubricity is formed on the surface of the caulking front end portion 2a, the lens frame end can be easily separated and separated. The edge surface is smooth and the wall thickness is uniform, and reliable heat caulking is performed.
[0031]
Further, the mold release / lubrication / abrasion-resistant coating 16 reduces the wear of the caulking tip 2a and enables stable heat caulking for a long period of time.
[0032]
As described above, the outer peripheral portion of the lens 6 is fixed to the lens frame 7 by the bent portion of the deformed lens frame edge 7b.
[0033]
Next, the mold release / lubrication / abrasion resistant coating 16 formed on the surface of the caulking tip 2a of the heater chip 2 will be described. This release / lubricating / wear-resistant coating 16 is constituted by dispersing polytetrafluoroethylene fine particles in an electroless nickel plating film.
[0034]
The electroless nickel plating film is formed by an “electroless plating method” using nickel as a plating metal. The electroless plating method is a method in which a plating metal is deposited on the surface to be plated without using an external power source as in a normal plating method. In order to deposit the plating metal continuously on the surface to be plated, in the electroless plating method, electrons e − are supplied by an electrochemical mechanism in place of an external power source.
[0035]
In the electroless plating method, ions M n + (n: an integer of 1 or more) of the plating metal M exist in the electroless plating solution, and the following electrochemistry is caused by electrons e − supplied from a reducing agent described later. Reaction M n + + ne − = M
Occurs, and the plating metal M is deposited on the surface to be plated to form a film.
[0036]
The electroless plating method includes a “self-catalytic plating method” in which electrons are supplied by an electrochemical mechanism.
[0037]
The “self-catalytic plating method” uses an electroless plating solution containing plating metal ions and a reducing agent. In this method, plating metal ions in the electroless plating solution are reduced and deposited on the catalytically active surface by electrons supplied from the reducing agent. As the reducing agent, phosphinic acid salts, borohydride compounds and the like are used.
[0038]
In the mold release / lubrication / abrasion resistant film 16 of the present embodiment, polytetrafluoroethylene fine particles are dispersed in the electroless nickel plating film. A method for dispersing the polytetrafluoroethylene fine particles in the electroless nickel plating film will be described.
[0039]
FIG. 3A is a conceptual diagram showing the principle of forming the release / lubricating / wear-resistant coating 16 applied to the caulking tip 2a of the heater chip 2 shown in FIG.
[0040]
As shown in FIG. 3A, the electroless plating solution 10 contains nickel (Ni) ions (Ni 2+ ) 11 which are plating metals and positively charged polytetrafluoroethylene fine particles 12. It is. The electroless plating solution 10 contains the above-described reducing agent (not shown). Further, although not shown in the drawings, an electroless plating solution 10 is added with a complexing agent, a buffering agent, a stabilizer and the like so that a uniform film is deposited on the object to be plated.
[0041]
Therefore, when the caulking tip 2a of the heater chip 2 from which rust or oil on the surface is removed and the ground surface is exposed in the electroless plating solution 10 is supplied from a reducing agent (not shown). By the electron e − , the following electrochemical reaction Ni 2+ + 2e − = Ni is caused on the surface of the caulking tip 2a.
Happens.
[0042]
In this case, if a phosphinate is used as the reducing agent, there is phosphinic acid ions containing phosphorus (P) in the electroless plating solution 10, and therefore, nickel and phosphorus are simultaneously deposited on the surface of the caulking tip 2 a. And a nickel-phosphorus alloy.
[0043]
Similarly, electrons (e − ) are also supplied to the positively charged polytetrafluoroethylene fine particles 12 on the surface of the caulking tip 2a. The positive charge of the polytetrafluoroethylene fine particles 12 is electrically neutralized by the electrons, and the polytetrafluoroethylene fine particles 14 are formed on the surface of the caulking tip 2a together with nickel (or nickel-phosphorus alloy). Precipitate together (eutectoid).
[0044]
FIG. 3B is a conceptual diagram showing the configuration of the mold release / lubrication / abrasion resistant coating 16 formed on the surface of the caulking tip 2a shown in FIG.
[0045]
As shown in FIG. 3B, the polytetrafluoroethylene fine particles 14 are coexisted in the electroless nickel plating film 15 on the surface of the caulking tip 2 a immersed in the electroless plating solution 10. The deposited release / lubrication / abrasion resistant film 16 is formed.
[0046]
In the mold release / lubrication / abrasion resistant coating 16, the polytetrafluoroethylene fine particles 14 are substantially uniformly dispersed. The diameter of the polytetrafluoroethylene fine particles 14 is 1 μm or less.
[0047]
Polytetrafluoroethylene has good releasability because of its very low adhesiveness. In addition, it has self-lubricating properties and a very low friction coefficient. Further, the formed release / lubricating / wear resistant coating 16 has a predetermined thickness and a uniform layer thickness. For this reason, the mold release / lubrication / abrasion resistant film 16 significantly improves the mold release and lubricity of the surface of the caulking tip 2a, and the caulking tip with an organic solvent or the like as in the prior art. Wiping off and re-applying the release agent are unnecessary. In addition, since the wear resistance is high, the mold release / lubrication / wear resistant film 16 is hardly worn even if heat caulking is performed many times.
[0048]
In the above embodiment, the lens frame heating caulking processing device 1 corresponds to a heat plastic processing device for a synthetic resin member, and the heat caulking processing corresponds to heat plastic processing. Further, the caulking tip 2a of the heater chip 2 corresponds to a processing means. Further, the insulator 3 and the electrodes 4 and 5 constitute a heating means. A lifting drive mechanism (not shown) corresponds to the drive means. The lens frame 7 corresponds to a synthetic resin member, and the lens frame end edge 7a corresponds to a part to be processed. The insulator 3 corresponds to contact electric heating means. The electroless nickel plating film 15 corresponds to an electroless plating film. The polytetrafluoroethylene fine particles 14 correspond to fluororesin fine particles.
[0049]
The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.
[0050]
For example, in the above-described embodiment, the lens frame 7 formed in a cylindrical shape has been described as an example of the synthetic resin member. However, the present invention is not limited to this, and other shapes of the synthetic resin member are used. It may be.
[0051]
Moreover, in the said embodiment, the crimping front-end | tip part 2a formed in the taper shape which is formed in a cylinder shape as one of the processing means, and one end part is open | released and the inner wall of the one end part goes outside is an example. However, the present invention is not limited to this, and any processing means having a shape or structure suitable for a processed part of a synthetic resin member to be heat plastic processed may be used. Good.
[0052]
Moreover, in the said embodiment, although the example of the contact electric heating means which heats by contacting the heater chip | tip 2 which is a processing means built in as an heating means was demonstrated as an example of a heating means, this invention is limited to this. Alternatively, other heating means, for example, an embedded electric heating means embedded in the processing means itself and generating heat by energization may be used.
[0053]
Moreover, in the said embodiment, although the electroless nickel plating film | membrane 15 was mentioned as an example as an electroless plating film, this invention is not limited to this, The electroless plating which uses other metals as a plating metal It may be a membrane.
[0054]
Moreover, in the said embodiment, although the polytetrafluoroethylene fine particle 14 was mentioned as an example and demonstrated as a fluororesin fine particle, this invention is not limited to this, Other fluororesin fine particles may be sufficient.
[0055]
【The invention's effect】
As described above, according to the present invention, the mold is formed into a cylindrical shape, and the surface of the electroless plating film (15) is dispersed with the fluororesin fine particles (14). heating means for heating the caulking tip formed in a tapered shape whose diameter increases as Rutotomoni its inner wall lubrication and wear resistant coating is formed is directed to the outside and (2a), caulking the tip portion (2a) (3 4, 5) and the crimping tip (2a) is moved toward the edge (7a) of the cylindrical lens frame (7) made of synthetic resin facing the surface of the crimping tip (2a). Using a lens frame heating caulking processing device equipped with a driving means for pressing, the caulking tip (2a) is moved and pressed toward the edge (7a) of the lens frame (7) , and the lens frame (7) edge ( Having the 7a) so as to plastically deform, heating plastic working Easy detachment edge of (7a), the processed surface is smooth, it is not necessary to perform coating of wiping and the release agent on the surface with an organic solvent, and the release-lubricating and wear resistant coating is worn It has the advantage that it is difficult to do.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a lens frame heating caulking apparatus according to an embodiment of the present invention.
2 is an enlarged view of the vicinity of an edge of a lens frame showing a procedure of a caulking method of the lens frame using the heater chip shown in FIG. 1. FIG.
3 is a conceptual diagram showing the principle of forming a mold release / lubrication / abrasion resistant film applied to the caulking tip of the heater chip shown in FIG. 1 and the structure of the formed mold release / lubrication / abrasion resistance film. is there.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lens frame heating caulking processing apparatus 2 Heater chip 2a Caulking tip 3 Insulator 4, 5 Electrode 6 Lens 7 Lens frame 7a Lens frame edge 7b before caulking processing Lens frame edge 10 after caulking processing Electroless plating solution 11 Nickel ion 12 Charged polytetrafluoroethylene fine particles 13 Nickel 14 Polytetrafluoroethylene fine particles 15 Electroless nickel plating film 16 Mold release / lubrication / wear resistance film

Claims (4)

筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部（２ａ）と、
前記カシメ用先端部（２ａ）に接触するように配置されるとともに通電により加熱を行い前記カシメ用先端部（２ａ）を加熱する加熱手段（３、４、５）と、
前記カシメ用先端部（２ａ）の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部（２ａ）を移動させ押し付ける駆動手段を
備え、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部（２ａ）を前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とするレンズ枠加熱カシメ加工装置。 Formed in a cylindrical shape, fluororesin fine particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And a caulking tip (2a) formed in a tapered shape whose diameter expands toward the outside,
Heating means (3, 4, 5) arranged to contact the crimping tip (2a) and heating the crimping tip (2a) by heating by energization ;
A driving means for pressing by moving the crimping tip toward the edge (7a) and (2a) of the crimping tip cylindrical lens frame made opposite synthetic resin on the surface of (2a) (7) ,
The lens (6) is placed inside the lens frame (7), the heated crimping tip (2a) is pressed against the edge (7a) of the lens frame (7), and the lens frame (7 ) edge (7a) of the lens frame heating caulking apparatus the outer peripheral portion, characterized that you fixed to the lens frame (7) to the side is plastically deformed the lens (6) of said lens (6) . 筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部と、
前記カシメ用先端部の内部に埋設されるとともに通電により熱を発生し前記カシメ用先端部を加熱する加熱手段と、
前記カシメ用先端部の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部を移動させ押し付ける駆動手段を
備え、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部を前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とするレンズ枠加熱カシメ加工装置。 Formed in a cylindrical shape, fluororesin fine particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And a caulking tip formed in a taper shape whose diameter increases as the inner wall goes to the outside,
Heating means embedded in the caulking tip and generating heat by energization to heat the caulking tip;
Drive means for moving and pressing the caulking tip toward the edge (7a) of the cylindrical lens frame (7) made of synthetic resin facing the surface of the caulking tip
Prepared,
The lens (6) is placed inside the lens frame (7), the heated crimping tip is pressed against the edge (7a) of the lens frame (7), and the end of the lens frame (7) is placed. edge (7a) of the lens frame heating caulking and wherein the outer peripheral portion that you fixed to the lens frame (7) to the side is plastically deformed the lens (6) of said lens (6). 筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑性・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部（２ａ）と、前記カシメ用先端部（２ａ）に接触するように配置されるとともに通電により加熱を行い前記カシメ用先端部（２ａ）を加熱する加熱手段（３、４、５）と、前記カシメ用先端部（２ａ）の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部（２ａ）を移動させ押し付ける駆動手段を備えるレンズ枠加熱カシメ加工装置（１）を用い、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部（２ａ）を前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とするレンズ枠加熱カシメ加工方法。 It is formed in a cylindrical shape, and fine resin particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And the crimping tip (2a) formed in a tapered shape whose diameter expands as the inner wall goes to the outside, and the crimping tip (2a) is disposed so as to be in contact with and heated by energization. The heating means (3, 4, 5) for heating the crimping tip (2a) and the edge of the synthetic resin-made cylindrical lens frame (7) facing the surface of the crimping tip (2a) Using a lens frame heating caulking processing device (1) provided with a driving means for moving and pressing the caulking tip (2a) toward (7a),
The lens (6) is placed inside the lens frame (7), the heated crimping tip (2a) is pressed against the edge (7a) of the lens frame (7), and the lens frame (7 ) Is plastically deformed toward the lens (6) to fix the outer peripheral portion of the lens (6) to the lens frame (7).
A lens frame heating caulking method characterized by the above . 筒状に形成され、表面に無電解めっき膜（１５）中にフッ素樹脂の微粒子（１４）が分散され離型性及び潤滑性の良い離型・潤滑性・耐摩耗性皮膜（１６）が形成されるとともにその内壁が外部に向かうにつれて拡径するテーパー状に形成されたカシメ用先端部と、前記カシメ用先端部の内部に埋設されるとともに通電により熱を発生し前記カシメ用先端部を加熱する加熱手段と、前記カシメ用先端部の表面に対向する合成樹脂製で筒状のレンズ枠（７）の端縁（７ａ）に向けて前記カシメ用先端部を移動させ押し付ける駆動手段を備えるレンズ枠加熱カシメ加工装置（１）を用い、
前記レンズ枠（７）の内側にレンズ（６）を載置して、加熱した前記カシメ用先端部を 前記レンズ枠（７）の端縁（７ａ）に押し付け、前記レンズ枠（７）の端縁（７ａ）を前記レンズ（６）の側へ塑性変形させて前記レンズ（６）の外周部分を前記レンズ枠（７）に固定すること
を特徴とするレンズ枠加熱カシメ加工方法。 Formed in a cylindrical shape, fluororesin fine particles (14) are dispersed in the electroless plating film (15) on the surface to form a release / lubricating / abrasion resistant coating (16) with good release and lubricity. And a caulking tip that is formed in a tapered shape whose inner wall increases in diameter toward the outside, and is embedded in the caulking tip and generates heat by energization to heat the caulking tip A lens having heating means for driving, and driving means for moving and pressing the tip end portion for caulking toward the end edge (7a) of the cylindrical lens frame (7) made of a synthetic resin facing the surface of the tip end portion for caulking Using the frame heating caulking device (1),
The lens (6) is placed inside the lens frame (7), the heated crimping tip is pressed against the edge (7a) of the lens frame (7), and the end of the lens frame (7) is placed. The outer periphery of the lens (6) is fixed to the lens frame (7) by plastically deforming the edge (7a) toward the lens (6).
A lens frame heating caulking method characterized by the above .
JP10208298A 1998-03-30 1998-03-30 Lens frame heating caulking processing apparatus and lens frame heating caulking processing method Expired - Fee Related JP3694586B2 (en)

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